US893140A

US893140A - Saw set and swage.

Info

Publication number: US893140A
Application number: US37229507A
Authority: US
Inventors: Frank Brunett
Original assignee: Individual
Current assignee: Individual
Priority date: 1907-05-07
Filing date: 1907-05-07
Publication date: 1908-07-14
Anticipated expiration: 1925-07-14

Description

PATENTED JULY 14, 1908.

No. 893,140. .H P. BRUNETT.

SAW SET AND SWAGE.

APPLICATION FILED MAY -7, 1907.

2 SHEBTSSHEET 1.

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F. BRUNETTJ SAW SET AND SWAGB.

APPLIUATION FILED MAY 7, 1907.

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FRANK BRUNETT, OF EVARO, MONTANA.

SAW SET AND SWAGE.

Specification of Letters Patent.

Patented July 14, 1908.

Application filed May 7; 1907. Serial No.-372,295.

To all whom it may concern:

Be it known that I, FRANKBRUNETT, a citizen of the United States, residing at Evaro, in the county of Missoula and State of Montana, have invented certain new and useful Improvements in Saw Sets and Swages, of which the following is a specification, reference being had therein to the accompanying drawing.

My invention relates to improvements in devices for setting and swaging the' teeth of saws, and it consists in the novel features of construction. and the combination and arrangement of parts hereinafter described and claimed.

The object of the invention is to provide a simple, practical and efficient device or ma: chine of this character whereby the teeth of a saw may be expeditiously shaped so as to produce the best possible result when the saw is in use.

The above and other obj ects which will appear as the nature of the invention is better understood are accomplished in the preferred embodiment of my invention illustrated in the accompanying drawings, in which Figure 1 is a perspective View, showing the device applied to a saw,- Fig. 2 is an end elevation; Fig. 3 is a vertical section; Figs. 4 and 5 are vertical transverse sections taken respectively on the planes indicated by the lines 44 and 55 in Fig. 3 and Fig. 6 is a detail perspective of'the setting gage and file and its attached parts.

The body 1 of .my improved saw set and swage is preferably a castin and of inverted U-shape so as to provide a s ot' or openin in its bottom for the reception of' the toot ed edge of the saw. The front portion or member 2 of this body is somewhat longer than its rear portion or member 3 and is adapted to serve as a stationary clamp jaw with which co-acts a movable clamp jaw 4 carried by the rear portion 3. Thejaw 4 is in the form of a plate mounted to slide toward and from the jaw 2 and adapted to be retracted by a coil spring 5 which surrounds a guide pin 6 projecting rearwardly from the aw plate 4 and through an opening in the portion 3 of the body. This pin 6 guides the plate 4 in its sliding movement and upon its outer end is a head which retains the spring upon it. The jaw 4 is projected to clamp the saw against the stationary jaw 2 by a screw 7 arranged in a threaded opening in the. member or' portion 3 of the body and having its inner rounded end projecting into a seat formed in the jaw 4. A lever 8 is suitably secured upon the outer end of the screw for operating it.

For the urpose of guiding the body along the edge of the saw as 1t is adjusted to permit the device to operate upon different teeth, I provide two similar uide or

gage plates

9, 10. One of these plates is arranged upon each side of the front portion of the body 1 and is adjustable vertically thereon to permit the saw to project the desired extent into the body. Each of the

plates

9, 10 has an outer end of right angular form to provide a vertical portion 11 which engages one side of the saw and a horizontal portion 12 which engages the points of the teeth of the saw and is of such length as to rest upon two or more of them. I preferably cover the bottom face of the portion 12 by a glass plate 13 which is cemented or otherwise secured. The inner end of each of the

plates

9, 10 is also of right angular form, as shown at 14, to engage and slide upon one of the vertical edges of the portion 2 of the body. Each of the ends 14 is formed with a vertically extending slot 15 for the reception of a clamping screw 16 which latter serves to adj ustably secure said plate upon the body.

For the purpose of swaging the teeth of the saw I rovide in the upper portion of the body 1 a jacent to one end a cam or eccentric 17 provided at one end with a reduced journal 18 mounted for rotation in the portion 3 of the body and at its opposite end with an enlarged journal 19 mounted for rotation in the front ortion or member 2 of the body and dis ose concentrically with the journal 18 'an eccentrically with the central portion of the cam or eccentric which latter is transversely disposed in the body, as clearly shown in Fig. 2. The cam 17 is removably secured in the body by means of a set screw 20 which passes through a washer 21 engaged with the outer face of the portion- 3 of the body and into a threaded socket in the journal 18. The cam is operated by a hand lever 22 which is removably and adjustably secured upon the front or enlarged journal 19. This connection of the lever is effected by forming the end of said journal and the inner face .of the inner end of said lever with radial serrations or ribs 23 which are held in engagement with each other by a re.- taining screw 24 assed through the lever and into a threa ed socket concentrically disposed in the journal 19. By reason of this connection between the lever and the cam it will be seen that when the lever is swung to any predetermined position or against a suitable stop, as presently exs plained, the cam 17 may be moved a predetermined extent or to a position that will properly swage the saw tooth beneath it. Arranged. in the body beneath the cam 17 is a transversely extending pin 25 adapted to be engaged by one of the saw teeth and to serve both as a stop and as an anvil. When the tooth to be swaged engages the pin 25 the tooth will be properly positioned beneath the cam so that when the latter is operated the pin will act as an anvil and take the thrust of the cam. Said pin is removable and has a finger piece upon its rear end.

For the purpose of setting the saw teeth, I provide a setting pin 27 which is in the form of a screw arranged in a threaded opening in the front portion 2 of the body adjacent to one side edge of the same. This screw haS upon its outer end a suitable operating lever 28 and its inner end is beveled or cone shaped, as shown at 27 so as to adapt it to engage and bend a saw tooth over against an anvil formed by the upper edge 30 of the movable jaw plate 4. Upon reference to Fig. 4 it will be noted that the set pin 27 is disposed in a horizontal plane slightly above the anvil 30 so that the saw tooth may be bent or set to any desired extent by screwing the pin 27 to i a greater or less extent into the body. To gage the extent of movement of the screw or set pin and to give the teeth of the saw a uniform set, I provide a combined gaging and filing member 31. The latter is in the form of a plate secured by a screw 32 or other suitable means upon the inner end of a shaft 33 which is rotatably mounted in a bearin sleeve 34. The latter is externally threade and screwed into a threaded opening in the portion or member3 of the body and is adapted to be held in an adjusted position by a set screw 35 or other suitable means. The sleeve 34 provides an adjustable bearing for the shaft or pivot 33 of the combined gage and filing member 31 so that said member may be adjusted transversely or laterally in the body 1 and toward and from the saw tooth which is alined with the setting pin 27.

The inner face of the plate 31 is formed with an under cut or dove tail recess in which is removably secured a file 36 adapted to swing across the bent end of the saw tooth when the shaft 33 is rocked or rotated. thus 0 erated by a hand lever 37 which is removabIe and. adj ustably secured, as shown at 38, upon the projecting rear end of the shaft 33. When it is desired to adjust the bearing sleeve 34 the handle 37 is removed and the screw 35 is screwed out of engagement with said sleeve. After it has been properly adjusted it is secured by the screw 35 and the handle 37 is then applied to the shaft 33 so Said shaft is that when the handle is swung the gage and file late 31 will be oscillated or swung across the ent end of the saw tooth.

In using the device for swaging the teeth of a saw, the body 1 is placed over the toothed edge of the saw and the stop pin 25 is engaged with one of the saw teeth. The

plates

9, 10 are then adjusted upon the body so that the saw will project into the same to the desired extent. The body is then clamped upon the blade by swinging the hand lever S downwardly. The hand lever 22 is then adjusted upon its cam or eccentric 17 so that when said lever 22 is swung downwardly until it contacts with the projecting end of the set pin 27, the swaging cam 17 will be swung downwardly a distance suilicient to properly swage the saw tooth beneath it. When the device is used for setting the teeth of the saw the stop pin 25 and the cam 17 are removed, and the body is then properly adjusted upon the saw, as above stated. The bearing sleeve 34 is then adjusted to properly position the gage and file plate 31 and the hand lever 23 then turned to screw the setting pin inwardly and cause its end 28 to bend one of the saw teeth over the anvil 30. To determine whether or not the tooth has been bent to the desired extent, the hand lever 37 is swung downwardly so that the plate 31 will be swung downwardly and inwardly across the bent tooth. If the file 36 does not touch the tooth the lever 28 is turned to a greater extent to move the setting pin inwardly to a greater extent. If the tooth has been bent too much the file 36 as it oscillates across the same will file or cut the point down so that all of the teeth which are operated upon by the device will have the same set. This set is of course determined by the adjustment of the bearing sleeve 34 in the body, as above stated.

Having thus described my invention what I claim and desire to secure by Letters Patent is:

1. In a device of the character described, the combination of a body to take over the edge of a saw, a setting )in arranged transversely in one side of saiil body, an anvil to coact with said pin, and a gage member arranged in the other side of said body and movable across the longitudinal axis of said pin.

2. In a device of the character described, the combination of a body to take over the edge of a saw, a setting pin arranged transversely in one side of said body, an anvil to co-act with said pin, a gage member mounted in the other side of said body and movable across the longitudinal axis of said pin, and a file carried by said gage member.

3. In a device of the character described, the combination of a body to take over the edge of a saw, a setting pin arranged transversely in one side of said body, an anvil to co-act with said pin, a transversely arranged co-act with said'pin, a bearing sleeve in the other side of said body and adjustable transversely therein, a pivot in said sleeve and a gage member upon said ivot and adapted to swing across the longitudinal axis of said pin.

5. In a device of thecharacter described, the combination of a body to take over the edgeof a saw, a setting pin arranged in one side of said body, an anvil to co-act with said pin, a bearing sleeve screwed into the other side of said body, means for retaining said sleeve in an adjusted position, a pivot in said sleeve, and agage plate carried by said pivot.

6. In a device of the character described, the combination of a body to take over the edge of a saw, a setting pin arranged in one side of said body, an anv1l to co-act with said pin, a bearing sleeve screwed into the other side of said body, means for retaining said sleeve in an adjusted position, a pivot in said sleeve, a lever upon the outer end of said pivot, and a gage plate upon the inner end of said pivot.

7. In a device of the. character described,

' the combination of a body to take over the edge ofa saw, means for guiding said body in its sliding movement on the saw, means for clam ing said body to the saw, an anvil in said ody, a screw arranged in one side of said body and having a setting point at its inner end, means at the outer end of said screw for turning the same and an adjustable gage member mounted upon the other side of said body for swinging movement in a plane transverse the axis of said screw.

8i In a device of the character described,

the combination of a body of substantially U-form, a clam ing plate mounted upon one member of said a saw against the other member of said body, the upper portion of said plate being adapted to serve as an anvil, means for operating said plate and a set pin arranged in said body and adapted to co-act with the anvil formed by the upper portion of said clamping plate. 9. In a device of the character described, the combination of a body of substantially U-form, a clamping plate mounted upon one member of said body and adapted to clamp a Y;

saw a ainst the other member of said bo a gui e for guiding said plate in its sliding movement, a spring for retracting said plate, a screw for rojecting said plate and a se': pin in said body to co-act with the upper portion of said plate.

10. In a device of the character described, the combination of a body of U-form having long and short depending members, a clamping plate upon the short member, a pin projecting from said plate and slidable in an aperture in said short member, a head upon the outer end of said pin, a coil spring surrounding said pin between said head and the body, a screw in said short member to impinge against said plate and a lever upon the outer end of said screw.

In testimony whereof I hereunto afiix my body and adapted to clamp