US417404A - George n - Google Patents
George n Download PDFInfo
- Publication number
- US417404A US417404A US417404DA US417404A US 417404 A US417404 A US 417404A US 417404D A US417404D A US 417404DA US 417404 A US417404 A US 417404A
- Authority
- US
- United States
- Prior art keywords
- saw
- apertures
- george
- aperture
- pin
- 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
- 241000763859 Dyckia brevifolia Species 0.000 description 4
- 210000003414 Extremities Anatomy 0.000 description 2
- 230000000717 retained 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
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/02—Circular saw blades
- B23D61/025—Details of saw blade body
-
- 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
Definitions
- the object of my invention is to provide a saw which may be retained firmly in its frame, so that it will not move upon the fastening screws or pins.
- My invention consists in a saw provided at opposite ends with tapering apertures for receiving the fastening screws or pins, the said apertures being oppositely arranged with respect to each other, the wider part of the aperture being adapted to receive a screw or pin of suitable size, the narrower part of the aperture being narrower than the diameter of the smallest screw or pin that is used for retaining saws, so that when the saw is placed in the frame and tightened the screw or pin will be clamped on diametrically-opposite sides in the tapering aperture.
- My invention is designed more particularly for application to hack-saws; but I do not limit or confine myself to this use, as it may be applied to bucksaws, whipsaws, and butchers saws.
- the saw A is provided with teeth upon one edge, and in opposite ends of the saw-blade are made oblong tapering apertures a, of approximately oval form, the narrower ends of the apertures extending toward the extremities of the saw.
- screws or rivets are inserted in the apertures a in the usual Way, and the narrower partof each aperture is of less diameter than the screw or pin inserted in the aperture, so that when the saw is strained the screw or pin will be tightly clamped in the aperture, thus preventing the saw from moving on the pin.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Harvester Elements (AREA)
- Steps, Ramps, And Handrails (AREA)
Description
(No Model.)
G. N. CLEMSON.
SAW. v No. 417,404. Patented Dec. 17, 1889.
IN VENTOR: %i%mmm/z BY fi Armmeys.
UNITE STATES PATENT OFFICE.
GEORGE N. CLEMSON, OF MIDDLETOXVN, NEW" YORK.
SAW.
SPECIFICATION forming part of Letters Patent No. 417,404, dated December 1'7, 1889.
Application filed June 21, 1889. Serial No. 316,039. (No model.)
To aZZ whom it may concern.-
Be it known that I, GEORGE N. CLEMSON, of Middletown, in the county of Orange and State of New York, have invented new and useful Improvements in Saws, of which the following is a specification, reference being had to the annexed drawing, forming a part thereof, in which the figure isa side elevation of my improved saw.
The object of my invention is to provide a saw which may be retained firmly in its frame, so that it will not move upon the fastening screws or pins.
My invention consists in a saw provided at opposite ends with tapering apertures for receiving the fastening screws or pins, the said apertures being oppositely arranged with respect to each other, the wider part of the aperture being adapted to receive a screw or pin of suitable size, the narrower part of the aperture being narrower than the diameter of the smallest screw or pin that is used for retaining saws, so that when the saw is placed in the frame and tightened the screw or pin will be clamped on diametrically-opposite sides in the tapering aperture.
My invention is designed more particularly for application to hack-saws; but I do not limit or confine myself to this use, as it may be applied to bucksaws, whipsaws, and butchers saws.
The saw A is provided with teeth upon one edge, and in opposite ends of the saw-blade are made oblong tapering apertures a, of approximately oval form, the narrower ends of the apertures extending toward the extremities of the saw. When the saw is placed in the saw-frame, screws or rivets are inserted in the apertures a in the usual Way, and the narrower partof each aperture is of less diameter than the screw or pin inserted in the aperture, so that when the saw is strained the screw or pin will be tightly clamped in the aperture, thus preventing the saw from moving on the pin.
Havingthus described my invention, I claim as new and desire to secure by Letters Patent- A saw-blade formed with oblong tapering apertures a at its ends, said apertures being rounded at both ends and free from angles, with their smaller ends toward the ends of the blade, substantiallyas set forth.
GEORGE N CLEMSON. \Vitnesses:
F. B. I-IATHAWAY, WM. D. BROWN.
Publications (1)
Publication Number | Publication Date |
---|---|
US417404A true US417404A (en) | 1889-12-17 |
Family
ID=2486330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US417404D Expired - Lifetime US417404A (en) | George n |
Country Status (1)
Country | Link |
---|---|
US (1) | US417404A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2621646A (en) * | 1950-09-15 | 1952-12-16 | Bror G Stalheim | Saw blade attachment in stone sawing machine |
US9199321B2 (en) | 2012-06-29 | 2015-12-01 | Irwin Industrial Tool Company | Double sided hand hack saw blade and method of manufacture |
USD758812S1 (en) | 2012-04-19 | 2016-06-14 | Irwin Industrial Tool Company | Hacksaw blade |
-
0
- US US417404D patent/US417404A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2621646A (en) * | 1950-09-15 | 1952-12-16 | Bror G Stalheim | Saw blade attachment in stone sawing machine |
USD758812S1 (en) | 2012-04-19 | 2016-06-14 | Irwin Industrial Tool Company | Hacksaw blade |
US9199321B2 (en) | 2012-06-29 | 2015-12-01 | Irwin Industrial Tool Company | Double sided hand hack saw blade and method of manufacture |
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