US1142923A - Combined work-support and coöperating tool mechanism. - Google Patents

Description

c. B. & I. H. WILLIAMS. COMBINED WORK SUPPORT AND COfiPERATlNG TOOL MECHANISM.

APPLICATION FILED JUNE 12' 1913. 1,142,923.

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C. B. & I. H. WILLIAMS.

COMBINED WORK SUPPORT AND COiiPERATING TOOL MECHANISM.

APPLICATION 'msn mm: 12. 1913.

Patented June "15, 1915.

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CLARENCE B. WILLIAMS, OF FENCE, AND IRA H. WILLIAMS, 0F MAPLE CREEK, SASKATCHEWAN, CANADA.

COMBINED WORK-SUPPORT AND COCPERATING TOOL MECHANISM.

Application filed June 12', 1913.

To all whom it may concern Be it known that we, CLARENCE B. WIL- LIAMS and IRA H. VVILLIAMS, respectively a citizen of the United States and a subject of the King of Great Britain, .respectively residing at Pence and Maple Creek, in the Province of Saskatchewan, Dominion of Canada, have invented certain new and use ful Improvements in Combined VVork-Sup ports and Cooperating Tool Mechanism, of which the following is a specification.

This invention relates to a combined work support and cooperating tool mechanism, such as a drill or threading attachment, and the primary object of the invention is to provide means for conveniently constructing and repairing various devices through manual operation and wherein the work may be readily adjusted throughthe operation of a treadle and a vertically movable post together with advantageous lever mechanism interposed between the treadle and post.

The invention consists in the construction and arrangement of the several parts which will be more fully hereinafter described and claimed.

In the drawings: Figure 1 is a side elevation of the improved device embodying a drill in connection with the work support.

Fig. 2 is av vertical section through the work support and cooperating devices and sup port therefor. Fig. 3 is a front elevation of the work support and operating mechanism partially broken away and illustrating different positions in full and dotted lines. Fig. 4 is a transverse vertical section on the line 44-., Fig. 3. Fig. 5 is a view similar to Fig. 1 showing the drill mechanism re placed by a thread cutter. Fig. 6 is a section through a portion of the work support showing the gripping or clamping dogs thereof engaging a bolt head. Fig. 7 is a transverse vertical section through the screw cutting head shown by Fig. 5. Fig. 8 is a horizontal section on the line 8-8, Fig. 7 Fig. 9 is a horizontal section on the line 99, Fig. 6.

In all the figures of the drawing the numeral 5 designates an upright or frame for supporting the entire mechanism and provided with a base 6 and a bracket 7 having outstanding arms 8 and 9 in vertical alinement. The bracket 7 is bolted or other- Specification of Letters Patent.

Patented June 15, 1915.

Serial No. 773,372.

wise secured to'the upright frame or support 5, and located above the same at a suitable distance is asmaller bracket 10 which is slotted as at 11 to provide upper and lower arms 12 and 13.

Movably mounted in the arms 8 and 9 is a hollow post 14:, and connecting the opposite ends of said arms are metal strips or frame members 15 and 16 which are continued inwardly at their lower extremities and suitably connected to form a bottom support 17 The post 11 is vertically slotted, as at 18 and 19, and the-frame members15 and 16 are also slotted at various points to accommodate the application thereto of the operating mechanism for raising and lowering the post 14.

Near the base support 17 a treadle bar 20 is movably mounted in the frame members 15 and 16, being fulcrumed between suitable fulcrum supports 21 on the frame member 16, as at 22. The opposite portion of the treadle bar 20 projects through and moves in a slot 23 in the frame member 15 and the free extremity thereof projects outwardly from said frame member and is given a quarter twist or otherwise constructed to provide a flat treadle plate or foot impacting member 24. The treadle bar 20 extends through and works in the slot 18 in the lower portion of the post 14:, and a portion of the side wall of the slot 23 in the frame member 15 is formed with a plurality of ratchet teeth 25 for engagement with a reduced laterally deflected edge 26 formed on the upper part of the treadle bar 20 for the purpose of holding the said bar in adjusted position.

A connecting bar 27 has its lower end pivoted to the treadle bar 20 and at its upper end said connecting bar is movably attached to a rocking lever 28 fulcrumed as at 29 to the upper portion of the framebar 15 find extends through a'slot 80in said frame To the inner end of the rocking lever 28 the upper end of a link 31 is pivotally connected and has its lower end alsomovably secured to one end of a lifting lever 32 which is fulcrumed on the frame bar or member 16 as at 33. The lifting lever extends through the slot 19 of the post 14 and continually bears against an antifrictional roller 34 mounted within said post so as to ease the movement of the lever relatively to the post in operating the latter. The roller 34 is rotatably held by a bifurcated pendant or portion 35 of a block or plug 36 loosely mounted in the post 14 and having a bolt 37 extending therethrough and projecting outwardly at opposite points relatively to the post, and between this bolt and a collar 38 fixed on the post a spring 39 is disposed and operates to give the post a resilient support or to arrange the same to have a slightly yielding action when adjusted.

The upper portion of the post 14, as clearly shown by Fig. 2, is screw-threaded to adjustably receive a screw-threaded stem 40 of a work support or table 41, the latter having openings or recesses 41 therein at intervals to receive suitable means for bold ing the work in position on the support or table. The object of providing this adjusting means for the work support or table 41 is to accommodate a preliminary set of the Work relatively to the operating mechanism above, and the spring 39 permits the table with its work to resiliently depress to avoid jamming the tool or implement that may be in engagement with the work, as for instance a drill point or other analogous device.

The lever mechanism or means just explained for elevating and lowering the post 14 can be positively operated to raise the work support or table 41 relatively to a tool or other mechanism disposed above the said support or table and which will be presently explained; and if any other adjustment is needed or becomes necessary the work support or table alone may be elevated through the medium of the screw stem 40 working in the upper end of the post.

The mechanism thus far described is common to both forms of the device shown and the operation will be precisely the same in both devices.

Figs. 1, 2 and 3 show a simplified form of the work support or table and its operating mechanism.

In the machine as shown by Fig. 1, the arms 12 and 13 of the bracket 10 have a rotating spindle 42 mounted therein and provided at the lower end with a suitable chuck or means for holding a drill 43, the said spindle being operated through the medium of a bevel pinion 44 thereon and a bevel gear 45 meshing with said pinion and mounted on a. suitable shaft 46 held in a bearing arm 47. The bevel gear 45 is rotated through the medium of a crank handle 48 and the drill 43 may be fed as in ordinary structures through the medium of a hand wheel 49 associated with the upper end of the spindle. The drill 43 is disposed directly over the center of the work support or table 41 and instead of the drill point 48 any other form of boring tool may be subsfituted either for metal or wood working. Any well known or approved means will be provided in connection with the hand wheel 49 for feeding the tool directly cooperating therewith.

In the machine shown by Fig. 5, the spindle 42 and the operating mechanism therefor are similar to that she vn by Fig. 1, and in this instance the drill point or tool is replaced by a head 50 which is removably applied to the lower end of said spindle and has an opening 51 extending centrally therethrough in alinement with the opening in the spindle, the spindle in both machines being hollow. Thehead 50 also has a peripheral recess 52 with an overhanging flange 53 and pins 54 extending outwardly therefrom at diametrically opposite points.

A die holder 55 is removably applied to the head 50 and consists mainly of a body plate 56 having a die cavity 57 of suitable angular form in the upper portion thereof and below the cavity is an opening 58 through the center of the body plate.

A flange 59 rises from the body plate and is formed with opposite bayonet slots 60 to receive the pins 54 for removably locking the die holder to the head 50. Within the cavity 57 a screw-thread, cutting die 61 of any suitable form is mounted and may be readily replaced by various dies simply by removing the holder 55 from the head 50 and then reapplying the said holder. It will be observed that the die 61 is held firmly in position in the holder 55 by reason of the fact that the cavity 57 therefor is of greater dimensions than the opening 51 through the center of the head 50, and consequently the bottom portion of the head adjacent to the opening 51 bears upon the die when the holder 55 is applied to he head and prevents movement or displacement of the said die. The post 14 in this instance has two diametrically opposed slots 6?. in the upper portion thereof above the spring and therein clamping dogs 63 are movably mounted, said dogs being pivoted at their upper ends to the post 14, as shown by Fig. 6, and movable inwardly to bring opposing straight faces or edges 64 thereof in engagement with a bolt head 65 of a bolt 66 adapted to be threaded or to have the threads thereof recut. In this instance the screw-threaded end 40 has two bars or stop devices 67 extending across the lower end thereof to form a rest for the bolt head so that the straight engaging faces or edges 64 of the dogs 63 may be brought firmly and positively into engagement with the said bolt head to hold the bolt against turning during the thread cutting operation at the upper opposite extremity of the bolt. lChe lower extremities of the dogs 63 are preferably longitudinally slotted as at 63 to loosely receive the upper ends of retractile springs 69 secured at their lower ends on the post 1% below the position of the dogs, the post being cut away at a suiiicient distance to allow the springs to have free play.

The dogs are held in clamping position within the post, as shown by Fig. 6, by means of a ring or clamping sleeve 71 which loosely slips downwardly over the dogs, but when raised is caused to engage a screw-- threaded surface 72 to hold the said ring or sleeve elevated, the interior of the ring or sleeve being correspondingly screwthreaded. hen the ring or sleeve 71 is elevated or. released from the dogs 63, the springs 69 instantly throw the dogs out wardly to fully clear the adjacent portion of the stem 40' so that the latter may be ad justed within the post when desired or when the dogs are not in use. It will be understood that the lower extremity of the stem 40 is slotted as at 73 so that the dogs will have free movement inwardly and outwardly with relation to both the post and the stem. The work support or table 41 in this instance has an opening 7 a through the center thereof which is provided by leaving the upper end of the. stem 40 fully open for the purpose of readily inserting and withdrawing a bolt to be operated on by the screw-thread cutting means hereinbefore described and as shown particularly by Figs. 5, 7 and 8.

The operating lever mechanism for the post 14:, as hereinbefore explained and as shown by Fig. 3, is used with the modified construction shown by Figs. 5 and 6, and it is proposed to replace the structure shown by Figs. 1, 2 and 3 by the post 1 carrying the dogs and the work support or table 41, as illustrated by Figs. 5 and 6.

From the foregoing the operation of the mechanism as an entirety will be readily understood. The work in either form of the machine or device is disposed on the support or table 41 and adjusted or elevated to the mechanism above, and if a bolt is to be threaded the bolt is inserted through the support or table into the stem 40 and the post 1- 1- elevated to bring the upper extremity of the bolt on which the threads are to be recut in engagement with the die 61. The die may be adjusted by any suitable means similar to the drill point 43, shown by Fig. 1, and as will be understood in the art of drill adjustments. The improved machine has a wide range of use, and in the form shown by Figs. 5, 6, 7 and 8, wherein a drill may be readily substituted for the screw-thread cutting attachment, a complete mechanism will be provided that may be manually operated and especially useful to farmers and others located at a distance from a machine or blacksmith shop.

It will be understood that changes inthe proportions, dimensions and minor details may be adopted without departing from the scope of the claims.

What is claimed is:

1. In a device of the class specified. the combination of a work support embodying a post having vertical movement, the post being longitudinally slotted, a lifting lever extending through the longitudinally slotted portions of the post, a rocking lever, having one end connected to the lifting lever, a treadle means connected to the opposite end of the rocking lever, a spring engaging the post, to permit the latter to have yielding movement when elevated, and a mechanism arranged over the work support to operate on the work held by the latter. 1

2. In a device of the class specified, the combination of a work support embodying a post having vertical movement, a lifting lever loosely extending through the post, a rocking lever having one end connected to the lifting lever, a treadle means connected to the opposite end of the rocking lever, a spring engaging the post above the lifting lever to permit the post to have yielding movement when held elevated, and mechanism disposed over the work support to operate on work held on said support.

3. In a device of the class specified, the combination of a work support embodying a tubular post and a table adjustably mounted in the upper end of the post, the post having a vertical slot therein, a lifting lever loosely extending through the post, devices for actuating the lifting lever to raise and lower the post, a spring engaging the post for permitting the latter to have a yielding movement when raised, and mechanism disposed over the work support and comprising means for operating on the Work on the support.

4:- In a device of the class specified, the combination of a work support embodying a post and a table, a lifting lever loosely extending through the post, means connected to the lifting lever for operating the latter to raise and lower the post, an antifrictional device movably mounted in the post and including a plug with a bolt extending therethrough, a spring on the post engaging the bolt at its lower extremity, the post having a stop means for the upper extremity of the spring, the antifrictional device being engaged by the said lifting lever, and mechanism disposed over the work support and wardly through and thereinto, the post having slots in opposite portions thereof, spring-actuated clamping dogs carried by the post and movable into the latter, means for projecting the dogs into the post to engage the work held by the support as an entirety, means for raising the post and work support, and mechanism disposed over the work support to operate on the work held on the support.

6. In a device or" the class specified, the combination of a work support embodying a hollow post and a table with an opening therethrough, the work support and tubular post adapted to have the work passed downwardly through and thereinto, spring-actuated clamping dog's carried by and projectable into the post to hold work steady in the latter, means for raising and lowering the post and table, and mechanism disposed over the work support and embodying means for operating on the work held by the support. I

7 In a device of the class specified, the combination of a work support comprising a tubular post and a work table with a hollow stem adjustably mounted in said post, the

post and stem having slots in opposite portions thereof and the work support and stem adapted to have work inserted downwardly therethrough and thereinto,means forelevating the work support and post and independent of the adjustment of the work table, spring-actuated dogs pivotally mounted in the said slots and movable inwardly and outwardly with relation to the post and stem, means for holding the dogs firmly projected inwardly in the post and stem to hold the work, and means mounted over the work support to operate on the work held in the latter.

In testimony whereof we have hereunto set our hands in presence of two subscribing witnesses.

CLARENCE B. WILLIAMS. IRA H. WILLIAMS.

Witnesses:

CHAS. S. HYER, SADIE STANFORD WHITE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C.

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