US134290A - Improvement in insertable saw-teeth - Google Patents
Improvement in insertable saw-teeth Download PDFInfo
- Publication number
- US134290A US134290A US134290DA US134290A US 134290 A US134290 A US 134290A US 134290D A US134290D A US 134290DA US 134290 A US134290 A US 134290A
- Authority
- US
- United States
- Prior art keywords
- teeth
- saw
- tooth
- improvement
- insertable
- 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
- 210000002320 Radius Anatomy 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 239000010978 jasper Substances 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
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/02—Circular saw blades
- B23D61/04—Circular saw blades with inserted saw teeth the teeth being individually inserted
- B23D61/06—Circular saw blades with inserted saw teeth the teeth being individually inserted in exchangeable arrangement
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/929—Tool or tool with support
- Y10T83/9319—Toothed blade or tooth therefor
- Y10T83/9326—Plural separable sections
- Y10T83/9329—Tooth separable from blade
- Y10T83/9331—By independent connecting element
- Y10T83/9333—Transversely movable
Definitions
- my invention consists in the construction and arrangementof a circular-saw tooth, and in the mode of fastening the same to the saw-plate, as will be hereinafter more fully set forth.
- A represents the plate of a. circular saw, and B one of the teeth inserted in the same.
- This tooth is formed with two or more circles, a and I), having the same center, the back circle at having a larger radius than the circle I), and the edges grooved in the usual manner, the edges of the recess in the plate for receiving the teeth being ⁇ I-shaped, to fit in said grooves.
- a and b are a straight part, d, and in the same is made a jog or notch for the reception of the rivet e, which is contained, for one-half its thickness, in the plate, and the other half in the tooth, to prevent the tooth from swinging in the circle.
- the corners at the joint of the straight part d and the circle b are rounded'or enlarged, as shown, at m m, thereby enabling the workman to clip off the ends without injuring or breaking his tools, and also preventing any strain from breaking the tooth at these points.
- the inner point of the tooth is fastened by means of a rivet, i, as shown. To remove the tooth, the end may be readily cut off with a cold-chisel.
Description
N. mnmsom.
Insertable Saw-Teeth.
No. 134,290. Patented Dec124,1872.
Witnesses I nventor.
w MM XW v Attorneys.
NELSON JOHNSON, OF JASPER, NEW YORK.
IMPROVEMENT IN INSERTABLE SAW-TEETH.
Specification forming partof Letters Patent No. H3d,290, dated December 24, 1872.
To all whom it may concern:
Be it known that I, NELSON JOHNSON, of Jasper, in the county of Steuben and in the State of New York, have invented certain new and useful Improvements in Insertable Saw-Teeth; and do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanyin g drawing and to the letters of reference marked thereon making a part of this specification.
The nature of my invention consists in the construction and arrangementof a circular-saw tooth, and in the mode of fastening the same to the saw-plate, as will be hereinafter more fully set forth.
In order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe its construction and operation, referring to the annexed drawing, which shows a front view of a part of the saw-plate with one tooth attached in the same.
A represents the plate of a. circular saw, and B one of the teeth inserted in the same. This tooth is formed with two or more circles, a and I), having the same center, the back circle at having a larger radius than the circle I), and the edges grooved in the usual manner, the edges of the recess in the plate for receiving the teeth being \I-shaped, to fit in said grooves. By making the circle at the back larger, as above described, the wearing-surface isincreasedtoaconsiderable extent. Between the two circles a and b is a straight part, d, and in the same is made a jog or notch for the reception of the rivet e, which is contained, for one-half its thickness, in the plate, and the other half in the tooth, to prevent the tooth from swinging in the circle. The corners at the joint of the straight part d and the circle b are rounded'or enlarged, as shown, at m m, thereby enabling the workman to clip off the ends without injuring or breaking his tools, and also preventing any strain from breaking the tooth at these points. The inner point of the tooth is fastened by means of a rivet, i, as shown. To remove the tooth, the end may be readily cut off with a cold-chisel.
Having thus fully described my invention, what Iclaim as new, and desire to secure by Letters Patent, is-
The combination of the plate A and tooth B with circles a b, having the same center but of unequal radiuses, the straight part d, rivets e i, and rounded corners m m, substantially as and for the purposes herein set forth.
In testimony that I claim the foregoing I have hereunto set my hand this 27th day of May, 1872.
NELSON JOHNSON.
Witnesses:
A. MURPHY, O. G. HUToHINsoN.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US134290A true US134290A (en) | 1872-12-24 |
Family
ID=2203706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US134290D Expired - Lifetime US134290A (en) | Improvement in insertable saw-teeth |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US134290A (en) |
-
0
- US US134290D patent/US134290A/en not_active Expired - Lifetime
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