US2208837A - File holding device - Google Patents

Description

July 23, 1940. F A Elx -2,2o8,s37.

FILE HOLDING DEVICE Filed Nov. 14, 1939 INVENTOR.

BY fw; ,wer/vx ATTORNEY.

Patented July 23, 1940 UNITED STATES PATENT OFFICE Claims.

, provided by this invention being more comfortable to the hands of the mechanic and being a more convenient means for operating the file. Also said file supporting frame affords an im- -proved means for protecting the hands ofthe i' mechanic from being injured in case the file accidently breaks during use.

Another object of the invention is to provide a file holding frame which carries, in an improved manner, a resilient backing strip against which the iile abuts,` said frame being adjustable in such a way as to bow said strip in either direction so as to present either a concave working face or a convex working face of a lile of the slightly bendable type to the material being operated upon thereby. This feature of the invention enables the workman to apply the rile more effectively to concave surfaces or to convex surfaces, as may be necessary in finishing oi the irregular surfaces of automobile bodies or other objects to which the tool is being applied.

Still another object of the invention is to provide a file holding frame which is constructed in a superior manner with a view to withstanding more satisfactorily the stresses put uponL the Itool from the handle portion thereof when being` used. With this end in view thev handle is disposed in a novel relation to the adjacent portions of the file supporting frame.

Other objects, advantages and features of in- Vention will hereinafter appear.

Referring to the accompanying drawing, which illustrates what is at present deemed to be a preferred embodiment of the invention,

Fig. 1 is a side view of the device, parts thereof A being shown in vertical mid-section and other parts in elevation. Fig. 2 is a bottom plan View of the tool. Fig. 3 is a sectional view thereof on line 3-3 of Fig. 1.

Fig. 4 is a sectional View thereof on line 4 4 ofFig.1. Referring in detail to the drawing, the file holding frame provided by this invention comprises a handle member 'l` which is desirably shaped similarly to the conventional saw handle, l

a head member 8, a bridge member 9 and a turnbuckle means I Il. Said bridge member 9 is preferably of resilient metal, and of a strap shape,

as shown. The means Ill may be defined as a 1 rotatable adjusting rod which has a screw thread portion II operatively related to the head member 8 to apply thereto a traction or an expulsive force in relation to the handle member l.

With the threaded rod portion Il cooperates an elongated nut or internally threaded sleeve I2 swingably mounted by means of a pivot pin I 3 which interiorly spans the upper portion of the hollow head 8,saidpivot pin being carried by apertured portions of the head 8, and being double headed to keep it inv place.

At its opposite end lsaid rod II) is swiveled to the upper portion of the hollow handle member 'I by means of a swingable sleeve I5 having a diametrioally reduced'part I6 within which the adjacent end portion of the rod is turnablyfitted. Said rod has an upset extremity I 8 which contacts .a Washer i810 that engages the inner end of the part I6, to exert traction. The sleeve I5 is swiveled to the handle I by means of a cross pin I9. A milled collar 20 xed to the rodV Ill provides for its manual rotation and abuts :against the sleeve I6 t'o give the aforesaid expulsive force.

In the drawing is shown an elongated flat file I of the resilient type which is provided with a countersunk aperture near each end to receive the screws 26 andZ'I whereby said i'lle issecured to the device in a iiatwise or abutting position in relation to the outer face of the bridge memu ber 9.

Through the fiat vbase'lb of the handle memberl is an aperture which alines with the aperture of a plate or anchor strip 8U welded to the upper surface of said base lb into which said screwv 26 screws. Likewise the head member 8 has an apertured iiat base portion 8b through which extends screw 2'! which screws into a plate oranchor member 3I. One end portion of the bridge memberis permanently secured to the base portion of the handle member 1 by means of `two screws -Qa which extend through said bridge member and are secured into sockets provided for them Iin the attached part 3l).V The opposite end portion of said bridge member is slotted at Sb'toallow for its adjustment in rela;

metal halves, the line of cleavage being along thel mid-width of the tool. The plates or anchor members 30 and 3| are respectively shown secured to the basal portions of the members 'l and by means of welds 3w and 3Iw. As is to be seen from the drawing, these welds are both coniined to one side of the median line of the device and hence said anchor members, after being welded in place, do not interfere with the assembling of the two halves of the end portions of the tool. rIhese halves are shown secured together by the rivets 35 within the handle member 'I, and rivets 3S within the head member 8. The pivot pins or rivets I3 and I9 also aid in uniting the two halves of the members 1 andl 8. Six rivets are shown. The twelve apertures for these rivets are all desirably formed by punching holes in inward directions and leaving around the inner edge of each hole a burr or lip i!! which gives added strength to the material adjacent to the halves.

In the manufacture of the tool, the plate or anchor members 3B and 3l are welded in place in the proper positions before the two halves of each member (l or 3) are secured together. Then, after the two halves of the members 'I and have been secured together by the various rivets which have been mentioned, the holes to receive the screws 26 and 27 are drilled through the basal portions of the members 'I and S in axial alinement with said nuts.

The handle member 'l has a spacious opening El to provide an ample working clearance around the sleeve I5 and adjacent part of the rod i0, and the head 8 likewise has a roomy opening 38 to provide a working clearance around said rod, hence said handle and head may be varied greatly in their relative angular positions, aiected vby the rotation oi said rod.

Describing in further detail the milled collar 2d and parts adjacent to it, the rod I has a diametrically reduced end portion Illcc which enters the sleeve I5 and which, as has been stated, has an upset end I8 to exert traction against the Washer Iii'w. The collar 2G is secured to the rod IG in any approved manner, for example by welds Btw. The face of the collar 23 which is directed towards the handle member 'I aiords a broad compression bearing surface against the end of sleeve I5 thereby reducing wear.

The adjusting rod ill is connected with the top portion of the handle 'l at a sufcient distance from the base of said handle to permit the entire hand of the operator to grasp the handle below said rod. Eicient operation of the tool is thus provided for,

l2 claim:i

l. A file holding device of the kind described including a hollow handle member formed in two halves each of which has a flat basal portion, a strap-like bridge piece positioned in a atwise abutting manner under said basal portions, there being alined openings through said bridge piece and the two-part basal portion of said handle member to receive an attaching screw, and a plate having a screw threaded aperture for such screw, said plate being secured within the basal portion of said handle by welding located only in one half thereof.

2. in a file holding device of the kind described having a handle member and a head member, a le holding strip connected with the basal portions of said members a manually rotatable rod connecting the upper portions of said members with each other, one end portion of said rod having a screw threaded relation to one of said members whereby, when rotated in opposite directions, it exerts pressure thereagainst and traction thereupon, and a sleeve into which the opposite end of said rod is swivelled, said sleeve being mounted upon the member at that end of the rod, and said rod carrying a collar to facilitate its manual rotation, said co1- lar abutting against the end of said sleeve to apply pressure thereagainst.

3. A file holding device comprising anupstanding handle member at one end and a head member at the opposite end, a strip of resilient metal one end end portion of which is secured to the base portion of said handle member and the opposite end portion of which is secured to the base portion of said head member, means to secure a file to the device in an underlying abutting relation to said strip, and a rotatable rod connecting the upper portion of said handle member with the upper portion of said head member, said handle being manually grippable by the operator below the connection of said rod therewith, one of said members carrying a part wherewith said rod has a screwthreaded relation and the other of said members carrying a part to which said rod is swiveled-in a manner affording both traction thereupon and extension thereof, said strip of resilient metal being longitudinally slotted at one end and the securing means at that end thereof extending through said slot.

l. A file holding device comprising a hollow, upstanding handle member at one end and a head member at the opposite end, a strip of resilient metal one end portion of which is secured to the base portion of said handle member and the opposite end portion of which is secured to the base portion of said head member, means to secure a le to the device in an underlying abutting relation to said strip, and a rotatable rod connecting the upper portion of said handle member with the upper portion of said head member, said hollow handle member having in its upper portion an opening in the side thereof which is directed toward the opposite end of the tool, a swivel member within the upper portion of said handle member, and a pin extending across the upper part of the space within said handle member and swingably supporting said swivel member, a portion of the latter member projecting through the aforesaid opening, said rod being rotatably attached to said projecting portion of said swivel member, the opposite end portion `of said rod having a screw threaded connection with the aforesaid head member to force the upper portions of said head member and handle member toward and away from each other.

5. A file holding device of the kind described including a hollow handle member formed in two l halves each of which has a fiat basal portion, a strap-like bridge piece cpsitioned in a flatwise abutting manner under said basal portions, there being alined openings through said bridge piece and the two-part basal portion of said handle member to receive an attaching screw, and a plate having a screw threaded aperture for such screw, said plate being secured within the basal portion of said handle by welding located only in one half thereof, said plate also having screw threaded apertures to receive attaching screws for said bridge piece.

FRITZ ALBERT EIX.

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