US261779A - Saw-gummer - Google Patents
Saw-gummer Download PDFInfo
- Publication number
- US261779A US261779A US261779DA US261779A US 261779 A US261779 A US 261779A US 261779D A US261779D A US 261779DA US 261779 A US261779 A US 261779A
- Authority
- US
- United States
- Prior art keywords
- plates
- saw
- die
- block
- gummer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 210000002832 Shoulder Anatomy 0.000 description 4
- 229920000591 gum Polymers 0.000 description 4
- 230000000875 corresponding Effects 0.000 description 2
- 230000002441 reversible Effects 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D65/00—Making tools for sawing machines or sawing devices for use in cutting any kind of material
- B23D65/02—Making saw teeth by punching, cutting, or planing
Definitions
- the object of my invention is to furnish a light and convenient implement for guniming saws; and it consists in a die-block and carnlevers, combined with a headepiece, as hereinafter described and claimed.
- Figure l is a perspective view of the gummer in position for use.
- Fig. 2 is a sectional s ideview, showing the dies in their compressed position.
- Fig. 3 is a crosssection on line :c w of Fig. 2.
- A is the head, consisting of plates a a, and a yoke or shackle, b, in which the plates are confined.
- B B are the cam-levers; and C is the dieblock, moving between the plates a.
- the lever B is hung on a pin or bolt, c, between the plates at one end, and engages byits cam end against one end ot block C, while the lever B is forked and hung by a pin, k, on one end ot block C, and acts by its cam ends against the opposite ends of the plates a., so that when the outer ends of the levers are moved apart. they act simultaneously to move the die-block.
- a U-shaped spring, d engaging the plates c and block C by its ends', moves the block when the levers are brought together.
- the block C is formed, as shown most clearly in Fig. 2, with a shouldered portion, c, projecting outside the head A, and against this shoulder the die or cutter fis held by a clampingpiece, g.
- the cutting ends are of U form, as shown in Fig. 5, each end being the same, to allow reversal of the die.
- the fixed die or cutter It (shown separately in Fig. 4) is the segment ot' a ring itted ⁇ between the edges ot' plates a and the outer end of ⁇ shackle b.
- the saw-plate' is entered between the dies h and f, and, the levers being then moved out, the moving die is pressed to the plate.
- the leverage is very powerful and the cutters act with precision. For a deep cut, two cuts will be made closely together,.and the middle portion then removed by a third cut.
- the plates a are beveled next to the die h, so that they may enter between the teeth when the cutis to be deepened.
- Fig. l For securing uniform depth.
- This consists of a bar, l, provided at its ends with pivoted hooks m, for taking over the saw-plate edge, as shown.
- One hook m is shorter lthan the other, lso as to diminish the depth of gage toward the saw ends.
- the cut is made down to the upper edge of bar l, which thus serves as a guide.
- This gum mer is light and convenient for use, and at the same time ⁇ durable and powerful. It is intended for use on crosscnt-saws.
- thecombination ot' block C carrying a removable cutter, calm-levers B B', and the head A, provided with a fixed cutter, substantially as shown and described.
- the yoke b provided with screw t' and cutter h, in combination with the plates c, dieblock C, and operating-levers B B, substantially as shown and described.
- gage consisting of bar l and hooks m, for use in connection with the gummer, as set forth.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Confectionery (AREA)
- Scissors And Nippers (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Description
UNITED STATES PATENT EEICE.
CLARENCE A. STAFFORD, CF NCRVVOOD, MICHIGAN.
SAW-GUMMER.
SPECIFICATION forming part of Letters Patent No. 261,779, dated July 25, 1882. Application tiled November 8, 1881. (N o model.)
To all whom 'it may concern:
Be it known that I, CLARENCE A. STAF- FORD, of Norwood, in the county of Charlevoix and State ot' Michigan, have invented a new and useful Improvement in SawGummers, ot' which the following is a full, clear, and exact description.
The object of my invention is to furnish a light and convenient implement for guniming saws; and it consists in a die-block and carnlevers, combined with a headepiece, as hereinafter described and claimed.
Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters ot' reference indicate corresponding parts in all the figures.
Figure l is a perspective view of the gummer in position for use. Fig. 2 is a sectional s ideview, showing the dies in their compressed position. Fig. 3 is a crosssection on line :c w of Fig. 2. Figs. 4 and 5 ofthe dies detached.
A is the head, consisting of plates a a, and a yoke or shackle, b, in which the plates are confined.
B B are the cam-levers; and C is the dieblock, moving between the plates a. The lever B is hung on a pin or bolt, c, between the plates at one end, and engages byits cam end against one end ot block C, while the lever B is forked and hung by a pin, k, on one end ot block C, and acts by its cam ends against the opposite ends of the plates a., so that when the outer ends of the levers are moved apart. they act simultaneously to move the die-block. A U-shaped spring, d, engaging the plates c and block C by its ends', moves the block when the levers are brought together.
The block C is formed, as shown most clearly in Fig. 2, with a shouldered portion, c, projecting outside the head A, and against this shoulder the die or cutter fis held by a clampingpiece, g. The cutting ends are of U form, as shown in Fig. 5, each end being the same, to allow reversal of the die.
The fixed die or cutter It (shown separately in Fig. 4) is the segment ot' a ring itted` between the edges ot' plates a and the outer end of `shackle b. A screw, t', tapped inv the opare perspective views posite end ot' the shackle, and'bearing on a washerinserted between the shackle and plates, serves to clamp the die h securely. Shoulders on plates a and a plate, i', behind the die h, sustain the pressure'ot cutting.
In operation the saw-plate' is entered between the dies h and f, and, the levers being then moved out, the moving die is pressed to the plate. The leverage is very powerful and the cutters act with precision. For a deep cut, two cuts will be made closely together,.and the middle portion then removed by a third cut. The plates a are beveled next to the die h, so that they may enter between the teeth when the cutis to be deepened.
I use the gage shown in Fig. l for securing uniform depth. This consists of a bar, l, provided at its ends with pivoted hooks m, for taking over the saw-plate edge, as shown. One hook m is shorter lthan the other, lso as to diminish the depth of gage toward the saw ends. The cutis made down to the upper edge of bar l, which thus serves as a guide.
This gum mer is light and convenient for use, and at the same time `durable and powerful. It is intended for use on crosscnt-saws.
Having thus fully described my invention, I claim as new and desire to secure by Letters Patentl. The saw-gum mer consisting ot' plates a a, yoke b, die-block C, cuttersf h, spring d, and cam-levers B B', substantiallyas shown and described, combined for operation as set forth.
2. In saw-gummers, thecombination ot' block C, carrying a removable cutter, calm-levers B B', and the head A, provided with a fixed cutter, substantially as shown and described.
3. The yoke b, provided with screw t' and cutter h, in combination with the plates c, dieblock C, and operating-levers B B, substantially as shown and described.
4. The gage consisting of bar l and hooks m, for use in connection with the gummer, as set forth.
CLARENCE ANGELO STAFFORD.
Publications (1)
Publication Number | Publication Date |
---|---|
US261779A true US261779A (en) | 1882-07-25 |
Family
ID=2331056
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US261779D Expired - Lifetime US261779A (en) | Saw-gummer |
Country Status (1)
Country | Link |
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US (1) | US261779A (en) |
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- US US261779D patent/US261779A/en not_active Expired - Lifetime
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