US1153982A

US1153982A - Saw-sharpening machine.

Info

Publication number: US1153982A
Application number: US205415A
Authority: US
Inventors: Mathias Wagner
Original assignee: Individual
Current assignee: Individual
Priority date: 1915-01-13
Filing date: 1915-01-13
Publication date: 1915-09-21
Anticipated expiration: 1932-09-21

Description

M. WAGNER.

SAW SHARPENING MACHINE.

APPLICATION FILED IAN. Ia. 1915.

QN NWN M. WAGNER.

SAW SHARPENING MACHINE.

APPLICATION FILED JAN. I3. 1915.

Patented Sept. 21, 1915.

3 SHEETS-SHEET 2.

M. WAGNER.

sAw SHARPEN'ING MACHINE.

APPLICATION FILED JAN. 13. 1915.

www,

end being in engagement with a spring 41, mounted between said lever and the frame, the tension of the spring being adjustable by regulating a screw 41". The upper end of the post 37, is reduced to form a stem, which extends through a slot 45, in a lever 46, pivoted to standard 30, extending from the iframe, and on the inner end or" said lever, is

Y a roller 48, which engages the upper surface of the slide 10, a spring 48, being interposed between the lever 46, and a shoulder on the post 37. The object ofthis construction is to tilt the slide downwardly to cause the file to engage with the tooth in the sharpening operation, it being evident that upon operation Yof the cam 6, the lever 46 will be so tilted as to engage the slide 10, and hold the ile in position in the saw teeth.

The base 1, is Jformed with an arcuate slot 50, and pivoted to said base, adjacent the slot, at 51, is a swinging saw carrying frame 52, same comprising upper and lower plates 53,7whichA engage the lupper and lower surfaces of the base 1, and extending vthrough `the slot 50, and connecting the upper and lower plates, is a bolt 54, to clamp the frame.

in adjusted position; Depending ronrthe lower plate 58, is a bar 55, slotted at 56, and provided at its lower end with a cross bar 57.

" Operating in the slot-56, is a slide block y58, v'formed with side grooves 59, inwhich iii the 'walls of the slot 56.v The block 58, is formed with a slo-t in which is a collar 60, secured to a screw 61, the latter engaging a threaded opening 62, formed in the cross bar 57, so that by turning the screw, the block 58, may be adjusted vertically, in either di rection. Extending from the block 5S, isa

screw 63, having a thumb nut 64, and a bushing 65, which engages an opening formed in a circular saw 66.

lBy adjusting'the bolt 54, the frame can be turned at an angle to the longitudinal axis ofthe file, and by adjusting the screw '161, the saw can be raised or lowered, wherelscrew 72, which engages a stud 7 3, projecting from the slide 74, suitably mounted on the base 1. The inner end of the slide is positioned to be engaged by the cam 7, when thewheel 4, rotates, consequently the leverv g 71, is rocked laterally with reference to the longitudinal axis of the file. On the outer end of thelever 71, is a pawl 7 6, which engages the teeth of the saw, to rotate the latter to present the succeeding teeth to the file .in the operation of the machine.

The pawl 76, is formed with an elongated opening 77, a screw 78X, extending through said opening to fasten the pawl to the lever 71, the elongated slot permitting of the pawl being Ytilted that it may be properly' positioned the drawings.

y82, to draw the pawl against a liange l78 formed on each slide 78a, as clearly shown in Two of these slides are provided so as to brace the pawl when it is turnedV to the right or left of its pivot, and the` lever 71 is formed with several openings 63, to receive the screws of the slide, so as to adjust the position of the pawl with refer,- ence tothe saw.

In operation, a circular saw is mounted on the bushing 65, and is clamped against the block bythe wing nut 64, the angular position of the saw being determined by the adjustment of the standard through the medium of the bolt 54, as previously explained, the angle of the saw being set, according to the desired anglevof the cutv of ythe teeth. The saw having been set, the file is adjusted in the slide, and upon rotation of the shaft, and when the various cams engagethe respectivelevers,rthe iile is moved in one direction of its reciprocation in engagement with the saw, and in its other movement,

said file is elevated, and the pawl rotatesy the saw one tooth. y Y

Assume the cam 5', is in engagement with the lever 26, the slide carrying the ile isl elevated above the saw, and the wheel 4, is

carrying the file back preparatory tomaking. the next or liling stroke on the tooth. Atk

this time, the cam 7, engages thev end of the slide 78, and rocks the lever 71, on its pivot V70, and thereby pawl 76 is caused lto engage one of the teeth of the saw, vand the latter is rotated to remove the previously sharpened'V tooth from under the `file, and to present another tooth to said lile to be sharpened] About at 'the time of completion of the idle stroke of the iile caused by the action of cam 5, cam 6 engages its coperating camv lever and elevates the end of rod 46, and causes the roller at the i'ree end of the latter to force the slide, consequently-the file, down into engagement with the saw for the sharp-v ening operation,rexcess movement or pressure on said arm 46 being relieved by means of the spring 48a. Of course, the cam 7 has passed the end of the' slide 73, and the spring 71a, has returned pawl" 76, toits normal position. j Y

Upon continued rotation of the shaft 3, the operation ofl the ,parts described con? tinues, and the ile is reciprocated and a new tooth is presented. v e

If it be desired to iile the teeth at an angle, the standard 55, is adjusted, and also the lio pawl 76, is likewise adjusted, so that in the movement of the file, an angular cut is made on the tooth.

What I lclaim is l. In a saw sharpening machine, the combination of a frame, a shaft mounted on the frame, a wheelon the shaft, cams rotatable with said shaft, a saw support, a rod on the frame, a slidingl frame mounted on the rod and carrying a file to engage the teeth of a saw on the saw support, a connecting arm between thel wheel and the slide to reciprocate said slide, a series of levers between one of the cams and the slide to rock said slide on the rod and the file carried thereby in direction of the saw tooth being sharpened, and a system of levers, one. of which engages the under side of the slide to rock the latter on the rod and the file upwardly and away from the saw tooth, one of the latter on the rod system of levers being operated upon by one of the cams. y

2. In a saw sharpening machine, the Icombination of a frame, a shaft mounted in the frame, a wheel on said shaft, cams rotated when said shaft is rotated, a guide bar, a slide slidably mounted on the guide bar, standards extending from the slide, one of said standards havingr a socket, the other said standard having oppositely disposed lugs formed with threaded openings, screws fastened through said openings, an adjustable socket member mounted in the standard and with which the screws engage to hold the end of the file and adjust the latter toward and from the slide, a connection between said slide and the wheel, a support to receive a saw being operatd on by the lfile, means for rotatably adjusting the said support, means in the support for vertically adjusting a saw, means including a system of levers, one of which bears on the slide'to force the file in contact with thetooth being sharpened, said levers being operated by one of the cams, a second system of levers, one of which engages under the slide to elevate the latter and operable by one of the cams, a pawl for rotating the saw, and means between one of the cams and the pawl for operating the latter. Q

3. In a saw sharpening machine, the combination of a frame, a saw support mounted on the frame, means for adjusting the saw vertically, means for angularly adjusting the saw on the support, a slide for carrying a file, means for reciprocating the slide, a pivoted lever engaging the side of the slide to elevate the file from a saw tooth, means for operating said pivoted lever, a second pivoted lever for lowering the slide to bring the filev into Contact with the saw tooth, a lever and post to operate said second mentioned lever, and a spring to relieve the strain on the slide when same is lowered.

4. In a saw sharpening machine, the combination. of a frame, a shaft lmounted on the frame, a wheel carried by the shaft, a saw support on the frame, a slide carrying a file, a connection between the slide and the wheel to reciprocate said slide, an arm to elevate the slide, a lever connected to the arm, a cam on the shaft to operate the lever, a second arm engaging the upper surface of the slide to lower the latter, a second lever for operating the second mentioned arm, a cam on the shaft for operating the second mentioned lever, a lever mounted on the frame to move at right angle to the movement of the aforesaid levers, a horizontal slide between said horizontal lever andthe cam on the wheel to oscillate said horizontal lever, a pawl on the oppositerend of said horizontal lever, means for mounting said pawl to move horizontally and laterally, gages on the horizontal lever against which the pawl engages, a spring between one of said gages and the pawl to hold' the latter in angular position, and a spring for operating said horizontal lever to return it to normal position after the saw has been moved.

5. In a saw sharpening machine, the combination of a frame, a saw support mounted on the frame, means for adjusting the saw vertically, means for angularly adjusting the saw on the support, a tiltable file carrying slide, means for reciprocating the slide, means for tilting the slide to elevate the file from the saw tooth, means for tilting the slide in the reverse direction to bring the file into contact with the saw tooth, and means to relieve the strain on the slide when same is brought into contact with the saw tooth.

6. In a saw sharpening machine, the combination of a frame, a saw support having vertical guides and mounted on the frame, a slidable block mounted in the vertical guides, means for mounting a saw on the block, a screw for vertically adjusting the block in the guides, means including a slot and bolt between the support and frame to angularly adjust the saw support, a tiltable file carrying slide, means for lreciprocating the slide, means for tilting the slide to elevate the file from the saw tooth, means for tilting' the slide in the reverse direction to bring the file into contact with the saw tooth, and means to relieve the strain on the slide when the same is brought into contact with the saw tooth.

7 In a saw sharpening machine, the combination of a frame, means for adjustably mounting a saw on the frame, a tiltable file carrying slide, means for reciprocating the slide, means for tilting the slide to elevate same away7 from a saw being operated upon, means including a pivoted lever for tilting the slide in the reverse direction to lower the slide to the saw, a spring engaging the pivoted lever to remove the shock from the saw when the le engages a tooth, and means for rotating the saw intermittently to present the teeth to the file to be sharpened.

8. In a saW sharpening machine, the conibination of a frame, means for adjustably mounting a saw on the frame, a rotating cam, a pivoted pavvl carrying lever, an adjustable abutment on the lever, a paWl loosely mounted on said lever and seated against the abutment, a spring for holding the pawl against the abutment, means for adjusting the position of the paWl, means between the lever and the cam to adjust the position 'of the paWl With reference to the savv tooth, a tiltable file carrying slide, means for reciprocating the slide, means for tilting the slide to operate upon a saw tooth, means for reversely tilting the slide to elevate the le from the saw tooth, and an adjustable file holder carried by the slide.

9. In a saw sharpening machine, the combination of a support for a saw, means for intermittently rotating a saw, a iile carrying slide, means for reciprocating the slide, an adjustable iile holder carried: by the slide, a pivoted horizontally disposed lever engagingthe top of the slide, a pivoted horizontally disposedV lever engaging the bottom of the slide, a spring acting to absorbthe shock and strain of said two levers when the slide is tilted, means for operating the first mentioned horizontally disposed lever, and means for operating the second mentioned horizontally disposed lever.

In testimony whereof I have signed my name to this speciication in the presence of two subscribing Witnesses.

MATT WAGNER.

Witnessesz Y JOHN Y. SMITH, D. K. JOHNSTON.

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