US66174A - Edward h - Google Patents
Edward h Download PDFInfo
- Publication number
- US66174A US66174A US66174DA US66174A US 66174 A US66174 A US 66174A US 66174D A US66174D A US 66174DA US 66174 A US66174 A US 66174A
- Authority
- US
- United States
- Prior art keywords
- plate
- edward
- saw
- screw
- new
- 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
- 230000000881 depressing 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
- B23D49/00—Machines or devices for sawing with straight reciprocating saw blades, e.g. hacksaws
- B23D49/10—Hand-held or hand-operated sawing devices with straight saw blades
- B23D49/14—Pad saws
Definitions
- v @Ligt 5:11am: ⁇ referat in in tigen tettersrtmt sur making part ni' tlgrame.
- This invention relates toa new and useful improvement in what are commonly termed by ⁇ ioiners baclsaws, and has for -its object the straining, by a simple means, of the saw-plate whenever the same becomes bent, or kinked, as it is technically termed, so that it may be brought in a plane, and have a straight cutting edge, or one-free from lateral bends or kinks.
- These back-saws have their plates as they are used for -ne work, the cuutting of tenons, etc., and the plates are consequently very liable to become -bent or kinhed, so much so as to frequently render 'it difficult to use'them and make a smooth kerf orcut.
- Figure 1 is a side view of -my invention partly in section. p
- A represents the plate of a backsaw; B the back, and C the handle thereof. These parts are ccnstructed in the usual. manner.
- the back B is secured to the saw-plate 'A by two rivets a a, one passing through the front and the other through the rear end of the back, as'shown in iig. 1.
- the saw-plate In case of the saw-plate becoming bent or kinlred, it may be-brought in a plane, and so as to have a straight cutting edge, or one free from lateral bends or kinks, by screwing downward or inward the screw D, thereby depressing the centre of the upper edge of the plate, which, in consequence of Abeing secured to the back at'its front and rear ends only, will cause the plate to be strained, and all bends and kinks taken out of it.
- a key or wedge may be used; Vbut a screw would be preferable.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing Of Meat And Fish (AREA)
Description
@uiten faire getraut @ffies IMPROVEMENT IN HAND-SAWS.
v @Ligt 5:11am:` referat in in tigen tettersrtmt sur making part ni' tlgrame.
To ALL WHOM IT MAY coNcERN:
Be it known that I, EDWARD H. ROE, of Jersey City, in the county of Hudson, and State of New Jersey, have invented a new and useful Improvement in Back-Saws, and that the following description, taken in con nection with the accompanying drawings, hereinafter referred to, forms a full and exact specification of the same, wherein I have set forth the 4nature and principles of my said improvement, by which my invention may be distinguished from all others of asimilar class, together with such parts as I claim and desire to have secured to Ine by Letters Patent.
This invention relates toa new and useful improvement in what are commonly termed by `ioiners baclsaws, and has for -its object the straining, by a simple means, of the saw-plate whenever the same becomes bent, or kinked, as it is technically termed, so that it may be brought in a plane, and have a straight cutting edge, or one-free from lateral bends or kinks.' These back-saws have their plates as they are used for -ne work, the cuutting of tenons, etc., and the plates are consequently very liable to become -bent or kinhed, so much so as to frequently render 'it difficult to use'them and make a smooth kerf orcut. In the accompanying sheet of drawings Figure 1 is a side view of -my invention partly in section. p
Figure 2, IL. transverse section of the same, taken in the line :v g. 1.
Similar letters of reference indicate like parts.
A represents the plate of a backsaw; B the back, and C the handle thereof. These parts are ccnstructed in the usual. manner. The back B is secured to the saw-plate 'A by two rivets a a, one passing through the front and the other through the rear end of the back, as'shown in iig. 1. Through the centre of the back B avscrew, D, passes, and bears against the centre of the upper edge of the saw-plate, or against asniall rodror pin, t, fitted thereon, (see both figures.)
In case of the saw-plate becoming bent or kinlred, it may be-brought in a plane, and so as to have a straight cutting edge, or one free from lateral bends or kinks, by screwing downward or inward the screw D, thereby depressing the centre of the upper edge of the plate, which, in consequence of Abeing secured to the back at'its front and rear ends only, will cause the plate to be strained, and all bends and kinks taken out of it. In lieu of a screw, a key or wedge may be used; Vbut a screw would be preferable.
Having thus described my invention, I4 claim as new,and desire to secure by Letters Patent-- The application of a screw or its equivalent to a back-saw, substantially in the manner as andhfor the purpose herein set forth. l
EDWARD H. ROE.
Witnesses:
WM. F. McNAMnnA, ALEX. F. ROBERTS.
Publications (1)
Publication Number | Publication Date |
---|---|
US66174A true US66174A (en) | 1867-06-25 |
Family
ID=2135700
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US66174D Expired - Lifetime US66174A (en) | Edward h |
Country Status (1)
Country | Link |
---|---|
US (1) | US66174A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090049700A1 (en) * | 2007-08-22 | 2009-02-26 | Joseph Frankl | T-back hand saw |
EP2517676A1 (en) | 2011-04-29 | 2012-10-31 | Medacta International S.A. | Intervertebral implant for the fusion between two vertebral bodies of a vertebral column and corresponding positioning instrument |
EP2517675A1 (en) | 2011-04-29 | 2012-10-31 | Medacta International S.A. | Instrument for positioning an intervertebral implant for the fusion between two vertebral bodies of a vertebral column |
-
0
- US US66174D patent/US66174A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090049700A1 (en) * | 2007-08-22 | 2009-02-26 | Joseph Frankl | T-back hand saw |
US7946041B2 (en) * | 2007-08-22 | 2011-05-24 | Joseph Frankl | T-back hand saw |
EP2517676A1 (en) | 2011-04-29 | 2012-10-31 | Medacta International S.A. | Intervertebral implant for the fusion between two vertebral bodies of a vertebral column and corresponding positioning instrument |
EP2517675A1 (en) | 2011-04-29 | 2012-10-31 | Medacta International S.A. | Instrument for positioning an intervertebral implant for the fusion between two vertebral bodies of a vertebral column |
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