US1437289A - Saw-setting device - Google Patents

Description

Patented Nov. 128, 1922.

N N INVENTOR S 5 3017/5 fazmifil' l ATTORNEY.

To all whom it may concern:

Patented Nev. 28,1922

1 Mr rarities ,s'ranrnv s. noausrnwsnr, or Poarriennonneon.

saw-snrrrne nnvrcn.

Application filed October 1, 1921; Serial 1%. 504,752.

Be it known'that I, STANLEY S. Bonusrnw- SKI a citlzen of the United States, residing at 1 new, and useful Improvements in Saw-Setting Devices ,.of Which thefollowing is a specification.

-,This invention relates to certain improve ments in saw setting devices, and-more par tioularly to a hand tool type of-the same ment of parts as will be hereinafter more adapted for the accurate setting of the teeth of saws throughout a'comparatively Wide rangeofsizes thereof.- H

xThe principal objectof the, inventionis to provide. for a device or tool ofv the class mentioned, and one of "an extremely simple, comparatlvely 1nexpens1ve, and durable construction, such as is capablefof easy IIltIllP- ulation for the simultaneous setting of two contiguousteeth of a saw in each operation thereof.

r With the foregoing and/other objects in VlW, the inventlon resides 1n the certainnovel and usefulconstruction and arrange fully described, set'forth inthe appended claims, and illustrated in the drawings, in which c Figure 1 is a side elevation, partly in section of a preferred embodiment of the device or tool, the section or portionthereof being taken on theline 1-1 of Figure 2,

Figure 2 "is a top plan view, 1

Figure .3 1s a transverse section taken on 2 tllflllIlG 33 of Figure 2,

detail, partly -Figure 4 is a fragmentary of one of in section, of the free end portion the setting plungers,

"Figure 5 is a fragmentary sectionaldetail of. the inner of the setting plungers and the adjacent connected end portion of the actuating plunger thereof g Figure 6v is an elevation offthe securing I pin for the's'pring tensioning means of the said inner setting plunger, and,

-Figure 7 is an elevation of the washer interposed betvveen the spring ,tensioning. means and the securing pin thereof.

Referring to the drawing, wherein similar characters of reference designate .corresponding parts throughout the several views thereof, the device or tool comprises namely, a frame portion 10 integrally forrned with and at the inner end of a fixed orstationaryhandle 11, two saw setting plungers 12 and Portland, in the county of Multnomah and State of Oregon, have inventedcertain accompanying 13 extendingin opposite directionsto either by the numeral 10', comprises :casting formedjvith an inner relatively narrow p01? tlon 15, integrally connecting the handle 11,

an intermediate transversely and vertically enlarged portion 16, and an outer reduced and substantially conical end portion 17, the

latterbeingslightly offset to one side efthei longitudinal center of the frame portion 16. Theintermediateenlarged portion 16 of the tool frame 10 is slottedas'at l8 upwardly of. its loWer side andv on the transverse center thereof for the reception therein of the toothed edge of a saw (not shown), and formed in the center of the upper face ofth s portion oftheframe is an opening orrecess' 19, which is preferably rectangular in plan and has the slotvvay 18 opening upwardly of the transverse center thereof. Extending centrally through the reduced end port-101 17 of the frame 10 and opening into the recess 19 is a circular bore 2Ov in which is slidably mounted the outer 'of the, setting plungers 13, which has its inner and active endportion formed to provide a sawtooth engaging head 13.

formed to provide a saw -tooth engaging head12, the heads 12 and 13, of the plungers 12 and13, being normally at rest to either side of the saw receiving slot- Way 18.

The. outer. end of the plunger pro The opposite Wall of the'recess 19 is provided with a bore 21 in which is slidably mounted the inner of the. setting plungerslQ, and similarly the end" of the same projecting into the recess 19 l is jected for suitable distanceflibeyond the forward end ofthe conical portion 17 of the frame 10, and 1s formed with a reduced threaded endportion 22 for the engagement thereon ofa memberfor pivot braclretfii;

and-a clamping nut 24 forsecuring the member or bracket-Q3 in position, :the latter having its free 'endl-arranged for pivotal engagement in the bifurcated end 25 of a connecting member- 26, and on the pivot pin 27 carried thereby, The member 26 has its end opposite to the end 25 thereof formed to provide a threaded bore or socket, in which is secured the complementally threaded end of an actuating rod 28, which, in turn, has its opposite end pivoted as at 29 in a bifurcated offset portion 30 formed on the upper edge of the operating handle 14 and outwardly from the inner end of the latter, which is pivoted on a pivot pin 31 secured in and extending between a pair of oppositely disposed cheeks or side walls 32 formed on the upper side of the connected end portion of the fixed h-andlefll.

The inner narrow portion 15 on the frame 10, between the enlarged portion 16 and the walled portion 32 of the handle 11, is formed to provide a recess 33 through which the setting plunger 12 passes, and in which is positioned a device for the tensioning ofthe operating mechanism of the tool. This tensioning device comprises acoiled spring 34 positioned on the portion of the plunger 12 passing through therecess 33, and has one of its ends bearing directly against the opposed face of the inner wall of the portion 15 of the frame, and its opposite end arranged in vabutting relation to a washer 35, which is also positioned on'the setting plunger 12, the washer35, in turn,'abutting a pin '36 disposed in an opening 3'? formed diametrically of the plunger 12, which pin 36, in its turn, abuts the wall 38 of the recess 33. As shown,;'the washer is formed to provide a straight side edge 35 arranged to overlie the bottom wall of the recess 33, whereby the same is prevented from turning within the latter and on the plunger 12. i

The free end of the setting plunger 12, opposite to its headed end 12, is formed to provide a reduced extension "39, which is engaged in a socket formed in the opposed end of an actuating plunger -40, the latter being slidably supported in the wall 38 and is operable for the setting movement of the plunger 12 against the tension of the spring 34, upon the manipulation of the operating handle 14, the free end of the plunger 40 having bearing contact with a cam surface 41 formed on the inner end of the handle 14 at a point below the pivot 31- thereof,

In the use and operation of'the device or tool thus provided, the slotway 18' of the same is engaged over the toothed edge of a aw (not shown) with the heads 12 and 13, of the plu'ngers 12 and 13, disposed in alignment with the first two contiguous teeth thereof, when upon gripping the handles 11 and 14, and pressing downwardly on the operating handle 14 the plungers 12 and 13 will be forced toward and past one another the required distance to either side of the slotway 18 as to properly set the teeth being operated on, during which movement of the plungers 12 and 13, the spring '34 will be compressed under the direct action of the actuating plunger and the cam end 41 of the operating handle 14 forcing against the same, and, upon the release of the handle 14, the spring 34 will expand in a manner to force the plungers 12 and 40 back to normal position for the starting of the next setting operation. In the passing back of the operating plunger 40, the same, through its bearing action on the cam surface 21, swings the handle 14 upwardly on its pivot 31, so that its movement is transmitted to the plunger 13, through the medium of the rod 28 and its parts 26 and 23 connecting the plunger 13, and acts to withdraw the same simultaneously to its normal starting position. the parts in the instance of the setting oper- The movementof ation is accomplished by the cam surface 41, of the operating handle 14, acting directly against the actuating plunger 40 and the saw-setting plunger 12 aligned therewith, which action, is accompanied by a pulling action of the handle 14 on the rod 28, itsconnections 26 and 23, and the setting plunger 13, whereby the latter moves simultaneously withand in the direction opposite to that of the plunger 12, as has been hereinbefore explained.

From theforegoing, it will be readily apparent that, while a preferred embodiment.

of the device ortoolhas been described. and

illustratedherein in specific terms and .de

tails of construction, arrangement and operation of the several parts thereof, various changes in and modifications of the same may be resorted to without departing from the spirit of the invention, or the scope of the claims appended hereto.

Having thus fully described the invention what is claimed, is

. In a device for the purpose setforth,-

a stationary handle, a frame projectingforwardly therefrom and integral therewith and having transverse means for the recep tion of the toothed edge of a saw, an operating handle extending into :and having its inner end pivoted to said stationary handle,-

said operating handle having a cam at its inner end, a pair of oppositely disposed and longitudinally movable setting elements disposed at right angles with respect to said means and slidably mounted in said frame, one of said elements engaged and operated by said. cam when said operating member is shifted inwardly, and means carried on the outer end of the other of said elements and pivotally connected to said operating member for operating the last mentioned element simultaneously with the other elements. I

2. In a device for the purpose set forth, a stationary handle, a frame projecting forwardly therefrom and integral therewith and having transverse means for the recep ried on the outer end of theother of said .elements and pivotally connected to said tion of the toothed edge of saw,'an operating handle extendinginto and having its inner end pivoted to said stationary handle, said operating handle having a cam at its inner end, a pair of oppositely disposed lon gitudinally movable setting ele'i'nents disposedat right angles "with respect to said means and"slidably mounted in said frame, one of said elements engaged and operated by said cam when said ope'ratingmember is shifted inwardly, and adjustable means caroperating member for operating tlielast mentioned element simultaneously with the other elements;

3. In a device for the purpose set forth, a stationary'handle', a frame projecting forwardly therefrom and integral therewith and having transverse means for the reception of the toothed edge of a saw, an operatinghandle extending into and having its inner end pivoted to said stationary handle said operating handle having a cam at its inner end, a pair of oppositely disposed and longitudinally movable setting elements disposed at right angles with respect to said means and slidably mounted in said frame, one of said element-s engaged and operated by said cam when said operating member is shifted inwardly, a pivoted bracket secured to the outer end of the other of said elements, and a connecting member attached to said bracket and pivotally connected to said operating member whereby the last mentioned element is simultaneously operated with the other of said elements when the operating handle is shifted inwardly.

4. In a device for the purpose set forth,

a stationary handle, a frame projecting forwardly therefrom and integral therewith and having transverse means for the reception of the toothed edge of a saw, an operating handle extending into and having its inner end pivoted 'to said stationary handle, said operating handle havinga cam at its inner end, a pair of oppositely disposed longitudinally movable setting elements disposed at right angles with respect to said means and slidably mounted in said frame, one of said elements engaged and operated by said cam when said operating member is shifted inwardly, a pivoted bracket secured to the outer end of the other of said elements, and a connecting member adjustably connected to said brackst and further pivotally connected to said operating member whereby the last mentioned element is operated simultaneously with the other element when the operating handle is shifted inwardly.

5. In a device for the purpose set forth, a stationary handle, a frame projecting forwardly therefrom and integral therewith and having transverse means for the recepinner end, a pair of oppositely disposed and longitudinally movable setting elements disposed. at right angles with respect to said means and slidably' mounted in said frame, one of said elements engaged and.

operatedby said cam when said operating member is shifted inwardly, means carried on the outer end of the other ofsaid elements and pivotally connected to said operating member for operating the last mentioned element simultaneously with the other elements, and means mounted inthe frame and associated with that element actuate'd by the cam for restoring said elements to normal position when the operating handle is released. I

6. In a device for the purpose set forth, a stationary handle, a frame projecting forwardly therefrom and integral therewith, and having transverse means for the reception of the'toothed edge of asaw, an operating handle extending into and having its inner end pivoted to said stationary handle,

said operating handle having a cam at its inner end,a pair of oppositely disposed longitudinally movable setting elements disposed at right angles with respect to said means and slidably mounted in. said frame, one of said elements engaged and operated by said cam when said operating member is shifted inwardly, adjustable means carried on the outer end of the other of said elements and pivotally connected to said operating member for operating the last mentioned element simultaneously with the other elements, and means mounted in the frame and associated with that element actuated by the cam for restoring said elements to normal position when the oper-I said operating handle having a cam at itsinner end, a pair of oppositely disposed and longitudinally movable setting elements disposed. at right angles with respect to said means and slidably mounted in said frame, one of said elements engaged and operated by, said cam when said operating member is shifted inwardly, a pivoted bracket'secured to the outer end of the other of said elements, a connecting member attached to said bracket and pivotally connected to said operating member whereby the last mentioned element is simultaneously operated with the other of said elements when the operating handle is shifted inwardly, and means mounted in the frame and associated with that element actuated by the cam for restoring said elements to normal position when the operating handle is released.

8. In a device for the purpose set forth, a stationary handle, a frame projecting for- Wardly therefrom and integral therewith and having transverse means for the reception of the toothed edge of a saw, an operating handle extending into and having its inner end pivoted to said stationary handle, said operating handle having a cam at its inner end, a pair of oppositely disposed longitudinally movable setting elements disposed at right angles with respect to said means and slidably mounted in said frame,

one of said elements engaged and operated by said cam when said operating member is shifted inwardly,'a pivoted bracket secured to the outer end of the other of Said elements, a connecting member adjastably connected to said bracket and further pivetally connected to said operating member whereby the last mentioned element is operated simultaneously with the other element when the operating handle is'shifted wa d y, n m an u d i the frame, and associated with that element aetu ted by the cam for restoring said elements to n a p s ien w en he ep r in dle is released.

In testimony whereof, I affix my signatule hereto. STANLEY S. BOR US IEWSKI.

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