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US1348028A - Door-lock - Google Patents

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Publication number
US1348028A
US1348028A US24733518A US1348028A US 1348028 A US1348028 A US 1348028A US 24733518 A US24733518 A US 24733518A US 1348028 A US1348028 A US 1348028A
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Prior art keywords
door
shaft
handle
lock
rock
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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Inventor
Cecil R Martin
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Frantz Manufacturing Co
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Frantz Manufacturing Co
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Priority to US24733518 priority Critical patent/US1348028A/en
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Publication of US1348028A publication Critical patent/US1348028A/en
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    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00Locks or fastenings for special use
    • E05B65/08Locks or fastenings for special use for sliding wings
    • E05B65/0858Locks or fastenings for special use for sliding wings comprising simultaneously pivoting double hook-like locking members
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00Closure fasteners
    • Y10T292/08Bolts
    • Y10T292/0801Multiple
    • Y10T292/0848Swinging
    • Y10T292/0849Operating means
    • Y10T292/0854Cam

Definitions

  • This invention relates to door-locks kin general, but more particularly to those for use on garage or barn doors, and more especially to those which have cam-operated latching means.. t. e
  • One object of the invention is to provide a lock which is adapted for use on either a sliding or a swinging door.
  • Another object is to provide means in con# junction with the cani-operatedA latching means to permitv locking of theV doorv by means of an ordinary padlock applied to the stationaryA element engaged by the latching means.
  • iiiiother4 object is to provide improved construction and. arrangement whereby the, cam which operates the latching means is mounted on a rock-shaft provided with inner and outer handles, and whereby A. the.
  • inner handle is readily removable from'the inner end ofthe rock-shaft, thereby to Yper- 'mit removal of the rock-shaft, which is pref; erably in theform of a flat strip, from the mechanism of the lock.
  • Fig. 2 is a vertical Vsection on line 2 2 in F ig. 1. j
  • Fig. 8 is an enlarged detail vertical section on line in Fig. 1.
  • Fig. 4 is an enlarged p door-lock shown in Fig. 1, showinga portion of the casing of the lock broken away to bring into view certain internal portions of the mechanism.
  • Figl 5 is a horizontal section on line 5--5 1 Vis a front elevation of a sliding.
  • FIG. 6 front elevation ofthe n -Fig.-6 is a detail section online'-G in Fig. 'K iy l
  • a Fig. 7 is' a horizontal section of a door and door-way, showing the lock appliedl to a swinging door.
  • Fig. ⁇ 8 is an enlarged detail section on line 8-A-8 in Fig.'7.
  • the invention comprises a stationary element 1 which is secured by screwsQ to the door-frame, so that this ele ment will extend' outward.
  • Said element is provided with upper and Vlower notches '3, and with .an Aopening 4. for a padlock.
  • 'In additi0n,rthe end portion" of this element 1 is provided with upper' and lower beveled edges 5 for a purpose which will hereinafter more fully appear.
  • the lock casing 6 is formed from sheet metal, and is secured onl the outerside of the door-by screws 7 in anysuitable or desired manner.
  • the members v8 have their inner ends pivoted at 9, so that AThese members S are connected togetherby'v a'coil spring 11, and thecasi'ng 6 is pro-j vided-with a vertical groove 12 0n the inner surface thereof, to accommodate said spring,th1s groove forming an elongated Y bulge -onthe outer surface of the sheet metalV casing.
  • this handle is soshapedthat it is adapted to swing over the upper and lower. ends of the external bulge formed the groove 12 o n the casing.
  • a cam 16 also forined'from sheet metal, is mounted on the'shaft 13,andkeyed ⁇ thereon ⁇ against rotation relatively ,thereto by the flat shape of the shaftitself.
  • a pin 17 is removablyfinserted :through the shaft to hold the cani 16 in position against the surf face of the other end, the
  • a handle 23 is pivotedat 24- on'the l to lkeep the handlejfrom being swung npdoor in closed position.v
  • a portion, ⁇ 27 is suitablysecured to'the door: between the projecting end. portions Iof the members 8, andis provided with; an
  • building may Abe .provided with: a stationary Y Y elementl, similar inshape to thereleme'nt 1,V and disposed'in position te Vreceive the latching members. 8 when the door swung outward and then back into posit-lon against the outer side of the building, whereby the door is latehed in open'position".
  • the ⁇ handles-llan'd 23Y It willV beV seen that the notches 3 are wider than the members 8,1 these members being formed from strips'jof' metal of less v thickness than the widthoff' said notches; and ⁇ it will also bey seen that Vthese notches Vhave inclined or beveled .sidesnthatf is toV say, each notchvis flared and provided with a straight horizontal bottom. vIn addition, it willfbe observed that the edges 10 of the members 1 are inclined or beveled, Iso that these edges are at: anangle tozthe ver.-
  • inner handle 23 may, asa matter of convenience, ⁇ be applied: iii'diffe'rentwvays, Veither as sliownin" the drawings, -orvin the other position in which the lugs 276: are above the end portions 25 'of the handle, so that the latter will" retain itself by gravity in horizontal position;
  • This does noti involve any adjustment or alteration of the parts, inasmuch as the lock isassembled to someextent when vapplied to the door, and Lat such time the either right hand or left hand doors, is not a matter of readjustment of any of the parts, inasmuch as this handle is not operatively connected to the latchingrmechanism until the plate 20 is secured to the door; and hencethe position of this handle 23 isa matter'to b e determined when the various parts of the complete outfit are applied to the door.
  • the flat strip or rock-shaft 13 is of such length that it can be considerably reduced in length for Vdoors of less thickness, and thatconsiderable variation in this manner is possible without ⁇ reducing the length of saidstrip or Vrockshaft.
  • this strip or rock-shaft 13 canl project a vslight distance outside of thecross-piece-Qll, which latter forms the yokeV of the handle, for a door of less thickness, without being objectionable.
  • the disk. 18 'and the cross-piece 21 of the handle are adjustable on the rock-shaft 13, toward and away from ⁇ the handle 14, 'for doors of different.
  • a spring Aconnecting said members together, a casing to inclose. said members and means, said casing being of sheet metal and formed with a groove for said spring, and a handle arranged tooperate said-means and adapted to swing over the upper yand lower ends of the elongated bulge formed on the outer surface oftheicasing by saidV groove.
  • a structure as specified in .claim 3 said rock-shaft being rotatable in either direction by'said handles to release said latching means.
  • f y 'y 8 A structure as specified in'claim 3, said inner handle being pivoted and adapted to swing Adownward .when in vhorizontal position, when used on a sliding door, and having portions adjacent said handle, and lugs to engage said portions to-,limit the upward swingofrthe handle fromits depressed position, whereby the inner handleinay swing intoa recess in the door.
  • latching mechanism comprising an inner handle pivoted to swingv downward when the lock is used on a sliding door, so that the handle may swing into a recess on the inner side of the door, having devices to limit the upward swinging movement of theliandle into a horizontal 'position for use, and means whereby said handle is reversible on said mechanism, when the door lock is used onf aswinging door, so that said devices'will then retain the handle in the horizontal position.
  • rock-shaft being 'in the form: of a fiat strip, said means being slidable on said shaft and keyed thereon bythe hat shape thereof, and the one handle ,being supportedby said adjustable means on the inner end portion of the shaft-,with a side of said plate.
  • a stationary element adapted to be secured in place at one side of the doorway, and latching mechanism for' attachment to the doorand adapted, without any adjustments or changes therein by simply turning the entire mechanism upside Y down, to cooperate with said stationary 'element onveither a right hand 0r a left 'hand' door, said mechanism comprising pivoted latching means, an oscillatory device for operating said pivoted latching means, and a handle for operating said device, in combination with a casing-for inclosing said device and iatching means.
  • a structureV as specied in-claim 1G said rock shaft consisting Vof a hat strip wlichcan-be shortened for a door of less thickness, said disk being slidable onsaid rock shaft, so that the disk and inside handle areheld by said'plate against displacement from the inner end of the rock shaft.
  • said bearing being' disposed'V between said cam and the outside handle, so that theV cam prevents said shaft from being pulled outward by said handle, an inside handle for the inner end of said shaft, latching means operated by'y said' cam, l and a stationary ⁇ strike piece for engagement with said latching means.

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Description

C. R. MARTIN.'
DOOR LOCK.
APPLICATION FILED IuL Patented July 27, 1920.
s sIIIsETs--sIIEIzr I.
C. R. MARTIN.
DOOR LOCK.
APPLICATION FILED 1uLY29. |918.
Patented July 2?, 1920.
3 SHEETS-SHEET 2.
c. R. MARTIN.
DOOR LOCK.
APPLICATION FILED .IULY29, 1918. Y 1,348,028 PatentedJuly 27,1920.
3 SHEETS-SHEET 3- f@ I j I f :,e I LJ' E I F1. I J II NUNITED STATES PATENT OFFICE- cEcIL ILMABTIN, or STERLING, ILLINoIsjAssIGNoItTo rRaNT-z MANUFACTURING co., or STERLING, ILLINOIS, AcoRroRATIQN or ILLINOIS.
nooIzfLocK.
Specification of Patent. y .`1)3.1j(31j11;(5(ll July/'2.7, `1920,
Application flied July 29. 191e.l I serial 110.4247335.
To all ywhom t may concern:
i Be it known that I, CEciL R. IWIARTIN, a citizen of the United States of America, and resident ofSterling, Illinois, have invented a certain new and useful Improvement in Door-Locks, of which the following Vis a specification. i
This invention relates to door-locks kin general, but more particularly to those for use on garage or barn doors, and more especially to those which have cam-operated latching means.. t. e
One object of the invention is to provide a lock which is adapted for use on either a sliding or a swinging door.
Another object is to provide means in con# junction with the cani-operatedA latching means to permitv locking of theV doorv by means of an ordinary padlock applied to the stationaryA element engaged by the latching means.
iiiiother4 object is to provide improved construction and. arrangement whereby the, cam which operates the latching means is mounted on a rock-shaft provided with inner and outer handles, and whereby A. the.
inner handle is readily removable from'the inner end ofthe rock-shaft, thereby to Yper- 'mit removal of the rock-shaft, which is pref; erably in theform of a flat strip, from the mechanism of the lock. y n
Y It is also an object to provide certain details and features of construction tending toy increase the general eihciency and desirability of a door-lock of this particular construction. j To these and other useful lends thel iiivention consists in matters hereinafter set forth and claimed. In the accompanying drawings i Figure door, such as that on a garage or barn, provided witli a lock embodying lthe principles of .he invention.y
Fig. 2 is a vertical Vsection on line 2 2 in F ig. 1. j
Fig. 8 is an enlarged detail vertical section on line in Fig. 1.
Fig. 4 is an enlarged p door-lock shown in Fig. 1, showinga portion of the casing of the lock broken away to bring into view certain internal portions of the mechanism.
"Figl 5 is a horizontal section on line 5--5 1 Vis a front elevation of a sliding.
front elevation ofthe n -Fig.-6 is a detail section online'-G in Fig. 'K iy l A Fig. 7 is' a horizontal section of a door and door-way, showing the lock appliedl to a swinging door.
Fig.` 8 is an enlarged detail section on line 8-A-8 in Fig.'7. Y Y
' As thus illustrated, andreferring to Figs. 1 to 6 inclusive, the invention comprises a stationary element 1 which is secured by screwsQ to the door-frame, so that this ele ment will extend' outward. Said element is provided with upper and Vlower notches '3, and with .an Aopening 4. for a padlock. 'In additi0n,rthe end portion" of this element 1 is provided with upper' and lower beveled edges 5 for a purpose which will hereinafter more fully appear. l. y The lock casing 6 is formed from sheet metal, and is secured onl the outerside of the door-by screws 7 in anysuitable or desired manner. Insideof said casing the members v8 have their inner ends pivoted at 9, so that AThese members S are connected togetherby'v a'coil spring 11, and thecasi'ng 6 is pro-j vided-with a vertical groove 12 0n the inner surface thereof, to accommodate said spring,th1s groove forming an elongated Y bulge -onthe outer surface of the sheet metalV casing. A rock-shaft 13, consisting ofl a flat strip, extends A through ithe .casing and through the door and has a handle 14, of any suitable character, non-removably applied tov the outer end thereof, this rock-shaft being adapted torotate in an opening 15 formed in the casing. VIt will also be seen that this handle is soshapedthat it is adapted to swing over the upper and lower. ends of the external bulge formed the groove 12 o n the casing. A cam 16, also forined'from sheet metal, is mounted on the'shaft 13,andkeyed`thereon `against rotation relatively ,thereto by the flat shape of the shaftitself. A pin 17 is removablyfinserted :through the shaft to hold the cani 16 in position against the surf face of the other end, the
shaft 13Ahas a disk 18 applied thereto, and
keyed thereon by the shape of the shaft itself, this vdisk being'adaptedzto rotate in the opening 19 formed in the door, so that the shaft is held in alinement.l The disk .18.
is held in the opening 19 by a plate2'0 kremovably securedto the inner side of the door Y -in any suitable or desiredmanner. A cross:
piece 21 is secured by rivets 22 tothe disk18, in position to bear against the outerY sur- Yface of the plate 20, and in this way the latter holds `the shaft against endwise displacement. A handle 23 is pivotedat 24- on'the l to lkeep the handlejfrom being swung npdoor in closed position.v
ward,- are arranged'at-right angles to eachother. ith this construction, a"-rotationof` either handle will turn the'cam land cause the members Szto separate or move away from eachother, thus di'sengagingthem from the notches 3 previously described.
A portion,` 27 is suitablysecured to'the door: between the projecting end. portions Iof the members 8, andis provided with; an
openingv 28 which coincides with the open:-
ing 4- onvfthe stationary element 1 when thedoon isclosedl Inthis waya"padlock 29, oi any suitable character, can bev inserted through the openings'a and 28 tolock. the
,Tn;Fig. 7 the lock is shown'iapplied to a swinging doorBO, and inthis casethe edges of'` v`the members 8S will strike the beveled edgesi, whentlievdoor is swung into'closedl position, so that said membersV .will then drop into thefnotches 3V and latch'the door in closed position. Also, when `the lock-,is
used'on a swinging door, the front of the.
buildingmay Abe .provided with: a stationary Y Y elementl, similar inshape to thereleme'nt 1,V and disposed'in position te Vreceive the latching members. 8 when the door swung outward and then back into posit-lon against the outer side of the building, whereby the door is latehed in open'position".
Practically the entire lock ismade' itromV sheet metal, it willbeseen, so that the` cost' ofmanuf'acture is materially 'reduced Thel Vlock is easily applied toa door, andthe'parts canfbe removedreadily.y By detaching the platev 20, the inner handle can 4be disengaged from the rockshaift, and by removing'the pin 21T tlierock-shaft vcanjthen be pulled outward. by'thefouter" handle." Also, a por'- tion of*l the latching means, this case the stationary element 1, is employed as a part Y ofiithe 'means for 'receV-Hg .afpadlock to' V Y lock the door in closed position.
Preferably, the `handles-llan'd 23Y It willV beV seen that the notches 3 are wider than the members 8,1 these members being formed from strips'jof' metal of less v thickness than the widthoff' said notches; and` it will also bey seen that Vthese notches Vhave inclined or beveled .sidesnthatf is toV say, each notchvis flared and provided with a straight horizontal bottom. vIn addition, it willfbe observed that the edges 10 of the members 1 are inclined or beveled, Iso that these edges are at: anangle tozthe ver.-
tical surfaceor face of the element 1 when Y door willI be sure to close tightly.v Also,
this formation of the notches 3i and the edges lOfafliordsgmore room, asbetween the parts themselves, for the latehing operation.
lVith vfurther reference tothe handle 23, it'will be seen thatV the inner side of the door can be" provided withy a recess-y 32'into which this handlel may swing downward, so that itfwilb normally be flush with the inner side of the door. In this way, when the lock is used on a sliding door, the handle 23fwill'not strike the door jambV when the door is pushed open thefull width thereof.
lowever, vwhen the. lock Ais applied to a swinging door, the disk 18 and the cross-V lpiece v21 are thenr reversed n the flat strip or roclesliaftl, so that; thel lugs-26 will Abe above, andy whereby the'handle 23- canV swing upwardbutl will rest normally in a* horizontalposition. Thus, when the lock is applied to a swinging door, the handle 23 will standnormally in theposition of person at the linner side of the door.
` Againjgitiwilljbe'seen that ythe lockis applicable to either a right hand or a lettl hand Suse, so that it can be readily grasped by a door vwithout'the necessity of changing the positions ofiany of the parts of the lock-- that' is to say, without altering the mechanism or changing the relative positions ofVV the latching devices, thel onlyv difference being that for doors that open in the oppo= site direction, the entire lock will be turned upside down, but it will be applied in the same'l way and'` willl operate in exactlyV the same manner. Of course, in applying the lock to different doors,.tlie, inner handle 23 may, asa matter of convenience,` be applied: iii'diffe'rentwvays, Veither as sliownin" the drawings, -orvin the other position in which the lugs 276: are above the end portions 25 'of the handle, so that the latter will" retain itself by gravity in horizontal position; This, however, does noti involve any adjustment or alteration of the parts, inasmuch as the lock isassembled to someextent when vapplied to the door, and Lat such time the either right hand or left hand doors, is not a matter of readjustment of any of the parts, inasmuch as this handle is not operatively connected to the latchingrmechanism until the plate 20 is secured to the door; and hencethe position of this handle 23 isa matter'to b e determined when the various parts of the complete outfit are applied to the door.
In addition, it will be seen that the flat strip or rock-shaft 13 is of such length that it can be considerably reduced in length for Vdoors of less thickness, and thatconsiderable variation in this manner is possible without `reducing the length of saidstrip or Vrockshaft.
For example, the end of this strip or rock-shaft 13 canl project a vslight distance outside of thecross-piece-Qll, which latter forms the yokeV of the handle, for a door of less thickness, without being objectionable. In other words, the disk. 18 'and the cross-piece 21 of the handle are adjustable on the rock-shaft 13, toward and away from `the handle 14, 'for doors of different.
thicknesses, and for a'door of much less thickness the end of the flat strip or rockshaft 13 can be cut off so that it will not project to an objectionable extent'into the space between the cross-piece 21 and said handle.
lVhat I claim as my-invention isz- 1. A door lock comprising a stationaryelement, a rotary cam,` pivoted members arranged above and below said camY and having end portions forming latching means to engage said element, a rock-shaft extend- =ing through, said cam, a casing for Asaid mechanism, means to secure said-casing to; the outer side of therloor, a handle dis posed on the ,casing to turn said. shaft, a
plate secured on the inner side of the door,
, a disk on the shaft inside of said plate, and
a handle secured tosald disk to turntheY shaft. f Y Y l Q. A structure as speciiied 1n claim 1, .said rock-shaft consisting of a flat strip to oneend of which the outer handle is1non-removably applied, and from the other vend` of which said inner `handle isremovable by simply detaching said plate from the door. n
3. In a door lock, a rock-shaft, a cam on said shaft, a handle non-removably secured on the outer end of said shaft, latching means engaging said cam, a plate secured to the inner side of the door, a casing to inclose said cam and latching means, a disk on the shaft inside of said plate, a handle secured to said disk, so that removal of said .plate permits separation of said inner han- .dle from the shaft, and means to permit removal 0f 4the camfrom the innery end of said shaft, whereby the shaftmay then be members, means to separater said members,
a spring Aconnecting said members together, a casing to inclose. said members and means, said casing being of sheet metal and formed with a groove for said spring, and a handle arranged tooperate said-means and adapted to swing over the upper yand lower ends of the elongated bulge formed on the outer surface oftheicasing by saidV groove.
p6. A structure as specified -n claim 1, said cam and handles being rotatable4 in either direction to release said latchingineans from said element, y y
7. A structure as specified in .claim 3, said rock-shaft being rotatable in either direction by'said handles to release said latching means. f y 'y 8. A structure as specified in'claim 3, said inner handle being pivoted and adapted to swing Adownward .when in vhorizontal position, when used on a sliding door, and having portions adjacent said handle, and lugs to engage said portions to-,limit the upward swingofrthe handle fromits depressed position, whereby the inner handleinay swing intoa recess in the door. i i
9.'In a door lock, a latching: mechanism.
adapted tobe attached, to the door and provided with pivoted ,latching members, astationary element adapted to` be secured in place at one side of the doorway to engage said pivoted latching members, said element -liaving notches to receive said members, said stationaryelen'ient and said'members being so relatively formed that they are adaptedfor use on` either a sliding or a swinging door, or on .either a rightlhand. `or a left'hand door bysimply.. turning .the entire mechanism upside down', saidnotches ,being wider than the. thickness of said members, and the sides of Athe notches being-flared, said pivoted members having beveled edge portions.A
vsaid inner handle inV horizontal position.
11. In ar door lock, latching mechanism comprising an inner handle pivoted to swingv downward when the lock is used on a sliding door, so that the handle may swing into a recess on the inner side of the door, having devices to limit the upward swinging movement of theliandle into a horizontal 'position for use, and means whereby said handle is reversible on said mechanism, when the door lock is used onf aswinging door, so that said devices'will then retain the handle in the horizontal position. c v
12. A structure as specified' in claim l, said disk beingfadjustable 'on said'i shaft to vary the -distance between the two handles for vdoors of either greater or less thickness. 13. In' a doorA lock, latchin'gmechanism having a rock-shaft extending through ar. opening in the door, an outer handle secured to said rock-shaft, an inner handle secured to-said rock-shaft, meanswhereby one han dle is adjustably connected with said shaft to vary the distance between the t-wo handles for doors ofv 'either greater or less thickness, and a plate rigidly secured to the door to prevent displacement of said one handle from the shaft. f Y Y 14. A structure asnspeciiied in claim 13, said rock-shaft being 'in the form: of a fiat strip, said means being slidable on said shaft and keyed thereon bythe hat shape thereof, and the one handle ,being supportedby said adjustable means on the inner end portion of the shaft-,with a side of said plate. n
15. Ina door lock for use on either right hand or lefthand doors, and on either swinging orsliding doors, a stationary element adapted to be secured in place at one side of the doorway, and latching mechanism for' attachment to the doorand adapted, without any adjustments or changes therein by simply turning the entire mechanism upside Y down, to cooperate with said stationary 'element onveither a right hand 0r a left 'hand' door, said mechanism comprising pivoted latching means, an oscillatory device for operating said pivoted latching means, and a handle for operating said device, in combination with a casing-for inclosing said device and iatching means.
1G. In afdoor lock,'a rock shaft extending through an opening in the door, an outside handle secured to the outer' side of the door and formed with an opening which 4provides a bearing for said rock shaft, latching'mechanism operated by the oscillation of said rock shaft, a disk engagingV therinner end portion of said shaft, an inside handle secured to said diska plate interposed between Y said disk and inside handleV andsecured toL the door, and a stationary strikev pieceforin-` portion of said means innism.
17. A structureV as specied in-claim 1G, said rock shaft consisting Vof a hat strip wlichcan-be shortened for a door of less thickness, said disk being slidable onsaid rock shaft, so that the disk and inside handle areheld by said'plate against displacement from the inner end of the rock shaft.
18.v A structure as specified in claim 16, said mechanism including a cam removably secured on said rock shaft, and said bearing beingv disposed between said-cam andV the outside handle. f
19. Ina door -lock,'aA rock shaft extending through the door, an outside handle non-removably secured to the outer end of said shaft, a member secured to the outer sideof the door and providing a bearing Vfor said shaft, 'a'cam 'removably secured on said shaft,
said bearing" being' disposed'V between said cam and the outside handle, so that theV cam prevents said shaft from being pulled outward by said handle, an inside handle for the inner end of said shaft, latching means operated by'y said' cam, l and a stationary` strike piece for engagement with said latching means. Y Y
I 20. Ina door lock, a rock shaft extending through the door, a cam on-said shaft, meanswhereby saidcam serves to prevent endwise displacement of said shaft, a casing inclos-` side the casingl and varranged to engage said cam, aV stationary strike piece to engagev said latchingmember, and a handle for oscillat-v ing said shaft. Y
21. A structureas specified in claim 20,'fin combinationwith another pivoted latching -member, both members being operative aboutfhorizontal aXes,-said cam being disposed between the two members, and a spring connecting the two members to-f getherrto yieldingly resist movement of tlie` members'awa'y from each other by said cam,
`said strike piece "being adaptedto engage" handle is released;
I CECIL R. MARTIN.
ing said cam, a latching member pivoted in-V Y ico iio
US24733518 1918-07-29 1918-07-29 Door-lock Expired - Lifetime US1348028A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2507511A (en) * 1945-09-19 1950-05-16 Rockwell Mfg Co Refrigerator door latch
US4303165A (en) * 1977-12-24 1981-12-01 O&K Orenstein & Koppel Aktiengesellschaft Werk Lubeck Crane with telescopic jibs

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2507511A (en) * 1945-09-19 1950-05-16 Rockwell Mfg Co Refrigerator door latch
US4303165A (en) * 1977-12-24 1981-12-01 O&K Orenstein & Koppel Aktiengesellschaft Werk Lubeck Crane with telescopic jibs

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