US488829A - Saw setting and filing machine - Google Patents

Description

4- Sheets-Sheet 1.

(No Model.)

A. PINKE. I SAW SETTING AND FILING MACHINE.

No. 488,829. Patented Dec. 27, 1892.

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Patented Dec 27,1892.

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(No Model.) 4 Sheets-Sheet 3.

A. PINKE. SAW SETTING AND FILING MACHINE. No. 488,829; I Patented D-e0.'27, 1892.

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N0. 488,829. Patented Dec. 27,1892,

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illi NIIED- STATES PATENT OFFICE.

ALEXANDER PINKE, LOUIS, MISSOURI.

SAW'SETTING AND FILING MACHINE.

SPECIFICATION forming part of Letters Patent No. 488,829, dated December 27, 1892.

Application filed February 12, 1892. Serial No. 421.322. (No model.)

To all whom it may concern.-

Be it known that I, ALEXANDER PI'NKE, of the city of St. Louis,in the State of Missouri, have invented a certain new and useful Improvement in Saw Setting and Filing Machines, of which the following is a full, clear, and exact description, referencelbeing had to the accompanying drawings, forming part of this specification.

This is a machine for setting and filing the teeth, the parts being adjustable to suit the machine to saws of different sizes and characters.

The novel features are set forth in the claims.

Figure I is a top view of the machine. Fig. 11 is a side elevation of the machine. Fig. III is a transverse section, taken at IIIIII, Fig. II. Figs. IV and V are detail rear elevations of the clamping jaws, showing the setting tools or sets in different positions. Fig. VI is a detail, transverse section through the file holders showing the file in position. Fig. VI is a detail, transverse section of the cam shaft, 850. taken at VI VI, Fig. II; the cam disk upon the shaft being shown in elevation. Figs. VII and VIII are transverse sections, taken at VIIVIII, Fig. I, showing the parts in diiferent positions. Fig. IX is a detail, transverse section showing the cam giving vertical movement to the file frame. Fig. X is an end elevation of the machine, showing the position of parts when the file is in operation (the file however being absent.) Fig. XI is a transverse section, showing the parts in position for the endwise shifting of the saw. Fig. XII is a detail, longitudinal section, taken at the plane marked XII-XII, Fig. IX, showing the shaft and cam in elevation. Fig. XIII is a detail, transverse section, taken at XIII-XIII, Fig. XII. Fig. XIV is a detail, transverse section taken at XIV-XIV, Fig. XII.

1 is the base of the machine adapted for attachment to the top of a bench or table 2.

2 2 are standards giving journal bearing at 3 to the cam shaft 4.

5 is a hand crank on the cam shaft by which it may be turned, and 6 is a pulley to receive a belt for the same purpose.

7 and 8 are respectively the fixed and movable jaws of a vise by which the saw-blade 9 ,is held while the teeth are being set and filed. The movable jaw 8 is hinged to the standard 2 at 10, and has a screw 11 adjustable in the downward extension 8 of the jaw and whose end is adapted'to bear against the cam 12, see Fig. III. The construction is such that when the salient part 12 of the cam bears against the end of the screw 11, the jaw 8 is pressed hard against the saw-blade, but when the screw is relieved from the pressure of the part 12 the saw-blade is relieved from the pressure of the vise, and it may be moved forward the length of one tooth. The saw blade rests in longitudinal slots 13 made in the upper ends of pins 13 vertically adjustable in sockets 14 made in the jaws of the vise.

These supporting pins are upon a horizontal The filing device will now be described. 18

is a guide-plate connected by a pivot-bolt 19 to the standard 2 against whose side it plays as it oscillates on the bolt 19. 20 is a yoke pivoted to the plate 18 by a bolt 21. The yoke surrounds or embraces a cam 22 on the shaft 4. The construction is such that the guide plate 18 is lifted and depressed by the cam so as to lift the file above the saw blade, or to carry it down into working posit-ion. 23 is a dove tail guide extending lengthwise of the plate 18 and occupying a similar recess in the slide-plate 24: to which the file 25 is secured.-

24: is a shim or strip which is inserted in the edge of the guide groove, and held in place by a lug 24: upon it, through which passes a screw stud 24 extending from the end of the plate 24 and carrying set nuts 24. The slide-plate 24: has at each end an upward extension or standard 26; one of the standards has a screw threaded socket 27 in which is a clamping screw 28, having a center socket 28 adapted to receive the point of the file, see Fig. VI. The other standard has a socket 29 in which fitsa circular block 30 with a socket 3O adapted to receive the shank 25 of the file. The block has a shoulder 30 bearing against the inner side of the standard, and a nut 31 screwing on its outer end, and bearing against the outside of the standard. The construction allows the file to be fixed in any position so as to give the teeth any desired form, (whether filing a rip or a cross-cut or a band saw.) 32 is a stud on the side of the slide-plate 24 connected by a rod 33 with a crank 3-l upon the cam shaft 4. The arrangement is such that the file-slide 24 has transverse reciprocation, the file being depressed so as to act on the saw when moving forward, as indicated by the arrow in Fig. X, and being raised (especially at the shank end 25) in its retrograde movement, which is indicated by the arrow in Fig. XI. The teeth are set by tools or sets 35 upon the setting levers 36. These levers are fulcrumed at 37 to the jaws of the vise. The tools or sets have screw threaded shanks 35 which occupy sockets 36 of the levers and are adjusted in the sockets by nuts 35 screwing upon the shank and bearing against the socket end of the lever. The lower ends 36 of the levers extend downward, and their ends are acted on by a cam 38, said cam acting upon the setting levers alternately. The setting tools are moved outward by the weight of the lower parts of the levers.

The device for giving endwise movement to the saw will now be described. 39 and 40 are two cam disks connected to the cam-shaft by pivot pins 41 diametric to the disks and the shaft. The construction is such that the disks may be adjusted to any required obliquity on the shaft, recesses 42 being made in the disks to allow this adjustment, (see Fig. VP.) The disks are connected together bya rod 43 passing through radial slots 44: in the disks and connected to the disks by pivot pins 45. The rod is carried past the disk 39, and passes through a lug 46 upon acollarai, fixed to the cam shaft by a set-screw 48 or other means. The end 49 of the rod is screwthreaded and carries set nuts 50 that bear against either side of the lug, so as to hold the cam disks to any required obliquity. 51 is a rock-shaft having bearing in boxes 52. The rock-shaft has an arm 53 carrying a pin 54 parallel with the rock-shaft, and having rounded ends 55 hearing against the faces of the disks 39, 40, so that when the disks are set obliquely to the shaft, the rotation of the cam shaft l) causes the endwise reciprocation of the rock-shaft, the pin 54: slidesin bearings 54;. The rock shaft has arms 56 extending transversely over the vise and having beveled ends 57 that engage the teeth of the saw. The construction is such thatthe edges 57 are in engagement with the teeth when the rock-shaft is moving forward and push the saw forward the required distance. \Vhen filing the saw, it is pushed endwise one tooth at each forward movement of the rock-shaft,but when the teeth are being set, it is moved forward two teeth at each time, as two teeth are set at each rotation of the cam shaft 4. It will be seen that when the saw is being set, the file is removed and vice versa. The feed arms 56 are forced down upon the saw when moving forward by the cam 12,'which acts upon a descending arm 58 of the rock shaft. \Vhen the feed arms are moving forward, the jaws of the vise are not pressed together, so that the saw is moved with ease. Vhen the feed arms 56 are moving backward, the saw is clamped fast in the vise, and the lower beveled edges of the ends 57, slide up the inclined backs of the sawteeth. The arms 56 are preferably adjustable on the rock-shaft and secured by set screws 56. The setting tools are shown set, so as to act on adjacent teeth, but this is not essential for there may be two or even four teeth between them.

The operation of the machine may be briefly described as follows:-Supposing the saw is to be filed before setting the setting tools 35 are removed from the arms 36, and the saw placed in position. The cam disks 39, 40 are so arranged as to cause the saw to move forward the length of one tooth with each revolution of the cam shaft. The arms 56 are then set in the proper position upon the rock shaft and the cam shaft rotated. To set the teeth, the file is removed, and the setting tools 57 put in place. The cam disks arethen arranged to move the saw the length of two teeth at each revolution of the cam shaft. Two of the teeth will now be set at each rotation of the shaft.

I claim herein as new, and of my invention:

1. The combination, in a machine for setting saws, of the vise vertically adjustable pins working in recesses of the vise and having slots at top adapted to receive the saw, a bar in which the pins are supported, and a nut having screw-connection with the back for raising and lowering it, substantially as set forth.

2. The combination in a machine for setting saws, of the simultaneously adjustable, slotted pins 13, a bar 15 on which the pins are supported, the vise having a movable jaw, and the cam-shaft l having acam 12 arranged to close the movable jaw of the vise; substantially as set forth.

3. The combination, in a machine for setting saws, of the cam-shaft 4. having adjustable cam disks 39, 40, the rock shaft 51 having a pin 54- bearing against the cam disks, feed arm 56 and cam arm 58 on the rock shaft and a cam 12 on the cam shaft, all constructed and adapted to operate substantially as set forth.

4. The combination, in a machine for setting saws, of the automatically closing vise, automatic setting tools working above the vise, a pivoted guide-plate provided with a guide, a frame received by said guide and carrying a file and having transverse and vertical reciprocation, substantially as set forth, and a cam shaft adapted to impart movements to the setting tools, and the file-frame; substantially as, and for the purpose set forth.

5. The combination, in a machine for setting saws, of the automatically closing vise, the vertically adjustable pins supporting the saw, the oscillating feed arms or fingers engaging the teeth, the endwise reciprocating rock-shaft, a cam shaft 4, adjustable cam- disks 39, 40, giving endwise motion to the rockshaft, an arm extending downward from the rock-shaft, a cam on the cam-shaft adapted to act on the arm 58, and depress the free ends 57 0f the feed arms, the hinged set tools actuated by a cam on the cam-shaft, a reciprocating frame carrying the file, a crank 34: upon the cam shaft, giving transverse reciprocation to the file frame, and a cam 22 giving r 5 vertical reciprocation to the said frame; substantially as set forth.

6. The combination of the vise having an automatically moving jaw, adaptedv to clamp the saw, the supporting pins 13 vertically adjustable between the jaws of the vise, the bar 15, supporting the pins, the descending screw stud 15, the lugs 16, and the adjusting nut 17 substantially as set forth.

7 ALEXANDER PINKE.

Witnesses:

SAML. KNIGHT, I BENJN. A. KNIGHT.

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