US2497943A - Sewing-machine repair vise - Google Patents

Description

395%]? M. ENGWER c; MACHINE REPAIR 'VIS FEWIN Filed Dec, 1]., .1947

INVENTOR MAX INGWER the yoke and--extendingthrough selec Patented Feb. 21, 1950 SEWING-MAGHIN REBAIR n rwcrr w-Yo k N-z Xwa S n I- o; Q9 o ate sewin vMwh ne-d s il lilmCm, Ina). New York, N; Y:, a corporation of New York Applioationfleeegpher 11, 1947, Serial vNo-- 791;];332

provid afiuni et form of w rk, h ld r hiq w l besmall: ndu omnac l n; d i n, o ak up but. sma l; Sh ne, 1 a. en h, a d,.-. ut o h ay,- hn-..n .1 in. aetu 'li se ic nsi'whith wit s ma y advant s. a b nex ens vel pr du d ndi lsem 51:.

t d s ble lqje t e ained h in enio 'then lfea ur f on t z iqtion .9 1

vh e ticm a .re atiq s. i part inv d? th v ntio rese or h qr illapneer n enours zi' e l ow n l net fiqationl he a a company n nd f rm i enar or the sn at ono il ustra pre ent ommercial embodiment of the invention. Structure, however, may be n odified andehangedas l egargis this illustration, all withinthe broad;scopeof the invention as hereinafter definegi and claimed;

Fig. linthe drawing is atopplan view. of'the work holder Fig. 2'is a brokenpart:sectionalside view of-"the same with the outline of a sewing machine held therein indioatedinbrqken lines;

Fig; 3is an enlarged'broken,sectional-view taken on substantially the plane of "line 3 j3 of Fig '2; and

Rig. 4* is a broken part sectional detail of a slightly modified iprm of construction.

Thebase oftheholder, indicated at'ii; may be of any preferred size and shape and when designed to bemountedpn a =beneh such as shown at 6 in Fig. 2, be arranged to accommodate any required number-ofhold-down bolts- 1-.

Swiveled on the base is an upright post-Bfotkd at the top at;&*tp;aoppng1rnodate the; web portion H) of atiiting head I I.

A riveted stud l2 engagegithe armsof the yoke 9 provides the pivotal support for-: and a; pin l3-removab1y engagegl in the ing's- M in the web Ni; affords Ineans f; and securing-the headin different angular positions.

Inthe present illustratipnthere are three siioh aw i s, n in heheaifi be seeme as shown in'Fig'\ 2; in a 45 tiltdposition or in the horizontal or vertioal positions.

y ewri e le'e ricz Bettaneu aele edeflaii ese '5 M a lzpesit a h rizontalfno t jn s Th i t n -head tructura si howrn ye-havin y indri al. bea ing 'J- xt d g he ero -hl, n itudinall i ned el b ove the web It) and atarightangleltothe pivotal axis m I2, ofthe heit d lournal d nfih stbeatin s thehub, par-119111 The outer, relatively, n ovable sv-isevjaw. 2 l1 is hown rr e by .a 9 t0r= e lidi freely 1:, thr u h he-tu u aehuh n r ierw hei nner/ aw nd: he" wo- Jew m; nfined to rn. weathe b ayinao rst eqina ipu ni hen zs ard guides 22, 23, in loosely sliding relation,

he ou h.- a ed sta e-2:2, s sh wn; at-m u wnn net utwaidmstension ift h bmipnl h z eee niaw iaadthesi lerlvf hels utsmalle nersii; i;sh9w, 1,. 9rmd as; aninwar extension ofthe outer jaw 20.

heiaw-wn ine b t; 2! hQWn' SQYBW 25. hr a d h ref t x ends hr u h, he. 1 1 9 o he ime -v ti-a ce iryineaheedl e l 3* aee bl a with h i nsi. h u h '8. of the nne aw to draw he n e l aw oward e nner; Jaw nd seem tinh ldi .l e iqa 0 The air of ise awsma v esqu ldin an enela rele iont o which h y ma h fl v ckei' ea -rs a. damn. crew 5. r w hrea w in th a in mposit on o. Qneagethe 111. 9 fih lemme)? 35 Sixm arly, th no tt,v ma he. sewed h vari us n itions o whiph tmav he urnettb a clamp. sQ wv 5., F gs-t dqz vumi i th pueh h ket Q1" co umn, a rtiq 1 Qfth base nto: n a ement. th. h ind e. qn ip .40, zaio med a th JQw x-en llfi post,

To h e he 1 9st aeains jaqqidental e ewa rom h se a. smear ng. 2 ash wnl ni l ee v 2 engaged in a groove '30 at'the lower enpl or the malls: nmeitipn e qonaa e withastqn 5. 1 esl er; 1 em i ded eti he'z owen. nd x he ocket 21 o th Spindle,

v imi hen-uh; not; he 'se nae-,n' ow held against accidentalremoval from the 'ing 1 iv the-ultimate dh ymeeni of aisnanj e 82 h mle, 55 For lding; e mach ne a ndica eqewzt F at-the nner aw may 'in'two may be opened as far as desirable and during this, as well as in the subsequent movement of tightening the jaws on an inserted object, both jaws will be retained in oppositely facing relation regardless of their turning in the bearing I! in the head. The clamp screw may be tical, horizontal or intermediate inclined position of the vise and it will be clear that instead of just having these three set positions, other openings M for the holding stud 13 may be provided 'in the web of the tilting head or a clamp screw may be used in place of the stud I3 to secure the tilting head in any desired angular position.

With the screw 26 released, the post 8 may be turned about its verticalaxis to carry the sewing machine or other supported object into any lateral position most convenient or accessible for the repair work to be performed.

Thus it will be seen that the vise actually is capable of universal adjustment to turn the supported object over or in various different positions best suited for the work in hand.

The parts of the device are few and of sturdy construction. These are easily assembled, or disassembled, if required, and they are compactly arranged so as to take up but small space when not in use. As Fig. 2 indicates, the head may be tilted to raise the vise into vertical position so that it will, if standing directly above the base, occupy practically no greater cross sectional dimensions than the base itself.

The spindle or pivot portion 28 of the post 8 is heavy and strong enough to carry the full load gripped in the vise and to avoid breakage in case the vise should be dropped or lowered suddenly about the horizontal pivot axis l2. For such .reasons the spindle may usually be made as a separate piece, such as an accurately finished, heavy steel pin, as shown. This pin, as illustrated in Fig. 2, may be fixedly secured at in a socket provided to receive it in the post 8 and i turn in the socket 21 provided for it in the base or, as alternately shown in Fig. 4, the spindle or pivot stud member 36 may be fixedly secured by set screws 31 in the socket 21 in the base and be rotatably received in the socket 38 provided for it in the post. In the latter instance the clamping screw 26 is screw threaded in the socket por-- "tion of the post in position to engage that portion of the spindle on which the post is rotatably mounted.

As also shown in Fig. 4, the clamping screw 28 may enter in a grooved portion 39 of the spindle to avoid scratching, marring or indenting the cylindrical portion of the spindle on which the post rotates.

To prevent accidental separation or removal of the post from the base in the Fig. 4 construction, a set screw 40 may be provided in the socket portion of the post entering the annular groove 39 sufficiently to hold the post to the base, preferably, however, without interfering with free rotary adjustment of the post on the base.

The clamp screw 25 which secured the clamp jaws in various positions of rotary adjustment in the head, may engage in an annular groove M in the hub portion l8 so as to avoid marrlng this rotatably adjustable element. Similarly, an annular groove to accommodate the inner end of the clamp screw 26, Fig. 2, may be sunk in the cylindrical surface of the bearing spindle 28.

To avoid accidental, unintentional separation of the parts, such as might result from sudden movements of the vise when holding a heavy machine, the snap rings 29 and 32 which, in the first illustrated form of the invention, rotatably confine the post on the base and hold the hub of the clamp jaws rotatably in the head, may be of flat cross section, substantially as indicated, so that they cannot be displaced from their retaining grooves by a rolling or wedging action such as might result if they were of the usual circular cross section.

What is claimed is':

A vise head having an elongated bearing extending therethrough from one side to the op-- posite side, a relatively stationary jaw member at one side of said head and having a tubular hub rotatably engaged in said bearing, means for securing said hub in various positions of angular adjustment in said bearing, said relatively stationary jaw member having a jaw element disposed at one end of the elongated bearing in the vise head and at one side of the axis of said bearing, and having a guard, substantially V- .shaped in cross section, provided at the opposite side of said axis and projecting away from said one side of the vise head; a bolt rod extending through said hub and slidable longitudinally therein; a companion, relatively movable jaw element on one end of said bolt rod at said one side of the axis of said bolt rod and opposed to the jaw element of the relatively stationary jaw member; said relatively movable jaw element having a guard element, substantially V-shaped in cross-section, provided on the opposite side of the axis of said bolt rod and projecting toward and in interlocking telescopic relation to the projecting guard of the relatively stationary jaw member, whereby said relatively movable jaw elementwill be maintained in alignment with the jaw element of the relatively stationary jaw member in the longitudinal sliding adjustment of the bolt rod; said bolt rod having a screw threaded end portion projecting from the hub at the opposite side of the vise head, and a hand nut engaged on said projecting screw threaded portion of the bolt rod and contacting an end of the hub to thereby apply thrust thereagainst for pulling th bolt rod and movable jaw element into cooperative relation with the jaw element of the relatively stationary jaw member.

MAX INGWER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Germany Mar. 16,1892

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