US1812928A - Hack saw - Google Patents

Description

,Jul '7, 1931. F H. BUN Y 1,812,928

HACK SAW Filed June 10, 1930 i for locking the handle in 25-member 12 being held in taut Patented July 7, 1931 UNITED STATES P TENT- OFFICE FRED H. BUNnY, or MANHATTAN; xANsA's HACK SAW Application filed June 10,

The present invention relates to saws and more particularly to an adjustable handle for a hack saw.

An object of this invention is to provide a v handle structure which may be readily secured to a conventional hack saw. frame, the

handle structure being such as to permit adjustmentof the handle with respect to the frame.

Another object of this invention is to pro- 'vide in an adjustable hack saw handle means adjusted position with respect to the frame. 7

' The above and various other objects and 15 advantages of this invention will in part be described in and'in part be understood from the following detailed description of the present preferred embodiment, the same being illustrated in the accompanying draw- 20 in s:

igure 1 is a fragmentary detail side elevation of a device constructed according to the preferred embodiment of this invention Figure 2 is a sectional view taken on the 22 of Figure 1; Figure 3 is a fragmentary end elevation of the handle; v

Figure 4 is a fragmentary end elevation of the'attaching plate mounted on the hack 30 saw frame; and

Figure 5 is a sectional view taken on the line 5-5 of Figure 1.

:7 Referring to the drawings wherein like numerals ofreference designate correspond- 35 ing parts throughout the several views, the numeral 10 designates a hack saw'frame which comprises a front section 11 and a rear section 12, thev front section being slidably and adjustably mounted in the rear section,

to being held in adjusted position by a pin 13 which is adapted to engage in selected re- I cesses 14 in the front frame.

' A hack saw blade 15 engages against the front frame member 11 and the rear frame position by means'of a thumb bolt 16 carried by the 'frame 10. it 7 I A handle structure generally designated as 17 is adapted to be adjustabl" mounted on e the rear frame section 12, the handle 17 be of which the angular 22 with respectto the frame 10 can be readily 1930. Serial No. 460,270.

ing adjustably secured to a fixed plate 18 of disc-like construction which is provided with forwardly projecting ar1ns- 19, the arms 19 being mounted 'in spaced relation to each other on the forward face of the disc18 and 5a adapted to engage about the opposite sides of the frame section 12. Thearm members 19' are secured tothe rear frame 12 by means of rivets 20 or the like.

A stud or threaded bolt 21 is secured axial- 6 ly to the plate 12 and extends rearwardly therefrom, and a handle body 22 having a disc 23 at the forward end thereof is adapted to be, mounted on the stud or bolt 21, the fore ward face of the disc 23 engaging against the rear fac'e'or surface of the disc 18. The disc 23 is provided with a plurality of spaced recesses 24 whichare positioned concentrically'a-bout the axial opening 25 therein and a locking outstanding lug 27 on one of the arms 19 the locking bolt 26 extending through the disc 18 and into selected recesses 24 so as to hold the handle '22 against rotary movement with respect to the plate 18. l

7 The plate 18 is provided with suitable marks or depressions 28 in the periphery thereof, and, in like manner the plate 23 is provided with a mark or indicia 29 by means position of the handle member 23 may be positioned on the bolt 21 9 and held thereupon against longitudinal movement by a threaded nut 30 but permitted toliav'e relative rotary movement upon the bolt 21. The thumb bolt 26 may be ro titted reversely bolt 26 is threadably mounted inan the select a5 portion 18 has been 9 so to permit the rotation or swinging of the handle 17 upon the bolt 21 and when the check mark 29 registers with the desired mark 28 on the disc 18 the thumb bolt 26 may be rotated so as to 5 move the inner end of the'bolt into the recess 24: which is in register or alignment With the bolt 26 when the mark 29 registers with the mark/2,8. When the locking bolt 26 isin engagement with the selectedn'eeess 2a the 10 handle is held upon the frame 10 against/r0 tary or swinging movement and the hack saw may be used in the conventional manner. It 15,01"- course, understood that various changes and modifications may be made in 15 the details of construction and 'design'of the abovespecifically described embodiment of, this invention without departing from the spirit thereof, 'suchf changes and modifica tions being restricted only by the scope of 2G, thefollow-ing claim} g Y I What is claimed is 1 v V j An attachm-ent for Connecting anfadjusb able handle with a hack'saw U-frame comprising a plate member having forwardly V 25 projecting spaced arms engaging[one of the arms of the U-frame above thesawj endfen- V v v a gaging means, means for securing said arms to said hack saw f'rame'arm, a threaded bo-ltf secured to said plate and extendingfrean' so wardly therefrom, a handle loosely mounted on saidbolt and'havingjaface with re cesses therein, means engaging saidboltfor yieldably'holding said handle against longi- V tudinal movement, and a thumb bolt threadably mounted in said plate and adaptedto engage ina selected recess of said handle whereby to hold saidhandle uponsaid bolt against circumferential movement.

' In testimony whereof I hereunto afiix my signature. v

FRED BUNDY.

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