US178872A - Improvement in saw-filing machines - Google Patents
Improvement in saw-filing machines Download PDFInfo
- Publication number
- US178872A US178872A US178872DA US178872A US 178872 A US178872 A US 178872A US 178872D A US178872D A US 178872DA US 178872 A US178872 A US 178872A
- Authority
- US
- United States
- Prior art keywords
- saw
- improvement
- file
- machine
- switch
- 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
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- 210000003746 Feathers Anatomy 0.000 description 2
- 208000000260 Warts Diseases 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
- 201000010153 skin papilloma Diseases 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
- B23D63/00—Dressing the tools of sawing machines or sawing devices for use in cutting any kind of material, e.g. in the manufacture of sawing tools
- B23D63/08—Sharpening the cutting edges of saw teeth
- B23D63/12—Sharpening the cutting edges of saw teeth by grinding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Portable Nailing Machines And Staplers (AREA)
Description
W. s. NEWTON. SAW-FILING MACHINE.
No.178.8 7Z. Patented June 20,1876.
WITNESSES,
. 'lNv"ENTo,H.-
a} Wart/mm WILLIAM S. NEWTON, OF NORWICH, CONNECTICUT.
IMPROVEMENT IN SAW-FILING MACHINES.
Specification forming part of Letters Patent No. 178,872, dated June 20, 1876; application filed August 13, 1874.
the file is caused to operate upon all the teeth alike, without regard to the pressure in bold ing the machine, by which means the teeth may be cut to any depth desired much more accurately, much easier, and requiring much less skill to operate it.
Figure 1 is a side view of the ordinary sawfiling machine, with my improvements, attached upon it, in position upon a saw, as in use. Fig. 2 is a side view, and Fig. 3 is an edge view, of the ordinary rotary file, detached from the machine, with my improved switch adjusted upon it. Fig. 4 is a side, and Fig. 5 av bottom, view of my improved rest and gage, showing the mode of its attachment and adjustment upon the frame of the machine.
A is the frame of the saw-filing machine, which is made in the ordinary manirer, except that I have secured the handle B upon its top, by which the whole machine may be held firmer, and operated with'much less effort.
C is my improved rest and gage, which has its upper end slotted, and through which the screw'D is inserted into the frame of the machine. It also has the longitudinal groove in its face to slide upon the' feather orjguide a, made upon the bottom of the frame, which,
with the screw D, firmly secures the rest in any adjusted position.
c is a semicircular piece, pivoted in the lower end of the gage C, which rests upon the sawteeth, and gages the depth in which the file can act.
E is the ordinary notched rotary file, and c I is my improved switch. This switch is made as shown in Fig. 2, and firmly secured upon the face of the file by the same screw which fastens on the file. This switch has its rear edge just catching against the rear edge of the notch in the file, and has its front inclined forward with a shorter radius, so as to catch into and draw back the next tooth; and while drawing it back the switch is pressed closely against the edge of the notch, so that the tooth slides smoothly off the switch onto the file.
This construction of the switch makes it very strong and unyielding, so that the edge WILLIAM S. NEWTON.
Witnesses:
J. B. ROGERS, WEBSTER PARK.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US178872A true US178872A (en) | 1876-06-20 |
Family
ID=2248279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US178872D Expired - Lifetime US178872A (en) | Improvement in saw-filing machines |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US178872A (en) |
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0
- US US178872D patent/US178872A/en not_active Expired - Lifetime
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