US150626A - Improvement in saw-sets - Google Patents
Improvement in saw-sets Download PDFInfo
- Publication number
- US150626A US150626A US150626DA US150626A US 150626 A US150626 A US 150626A US 150626D A US150626D A US 150626DA US 150626 A US150626 A US 150626A
- Authority
- US
- United States
- Prior art keywords
- saw
- jaws
- improvement
- sets
- tooth
- 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
- 210000001847 Jaw Anatomy 0.000 description 14
- 229910000760 Hardened steel Inorganic materials 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 230000001105 regulatory 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
- 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
- B23D63/02—Setting saw teeth by means of hand-operated or foot-operated devices
- B23D63/023—Devices of the portable type carried by one hand and operable by one hand or two hands, e.g. having a pair of tongs
Definitions
- the object of my invention is to construct a substantial, adjustable, and easily manipulated saw-set by connecting together, in the manner illustrated in the accompanying draw ing, two arms, A and A', presenting jaws a a, the extent of opening of which can be regulated by a set-screw, b, as shown in the side view, Fig. 1, ofthe accompanying drawing.
- Fig. 2 the two jaws are shown as detached from each other, the central pin, by which they are hinged together, having been removed.
- the two arms, where they are connected together, are halved, as shown'in Figs.
- the rounded projection of one halt' fitting snugly in a recess of corresponding form in the other half, so that there may be at the joint an extended bearing-surface, which, when the nut of the bolt is tightened, insures a proper lateral steadiness for resisting the strain to'which the instrument is subjected.
- the jaws a a are of hardened steel, and are of a proper shape for applying to the tooth of the saw, the extent of opening between the jaws to suit the blade to which they are applied being determined by the above-mentioned setscrew b, which passes through a projection, e,
- the two arms are of the same length, and are provided at the ends with suitable handles, which the operator grasps, one with his right hand and the other with his left, and manipulates the instrument in the following manner: Having adjusted the screw b so that the jaws when open will fit snugly but freely over the tooth of'the saw, the operator depresses one arm so as to bend the tooth in the direction desired, and then raising both arms relieves the instrument from the blade and adjusts it to the next tooth, which, by a depression of the other arm, is bent in a. direction contrary to that of the tooth last operated on.
- tooth after tooth can be set with rapidity and ease.
Description
UNITED STATES PATENT OFFICE.
JOHN SMITH, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO HENRY DISSTON 8v SONS, OF SAME PLACE.
IMPROVEMENT IN SAW-SETS.
Specification forming part of Letters Patent 150,626, dated May 5, 187 4; application filed April 20, 1874.
To au whom it may concern Be it known that I, JOHN SMITH, of the city of Philadelphia, State of Pennsylvania, have 'invented anlmproved Adjustable Saw-Set, of
which the following is a specification:
The object of my invention is to construct a substantial, adjustable, and easily manipulated saw-set by connecting together, in the manner illustrated in the accompanying draw ing, two arms, A and A', presenting jaws a a, the extent of opening of which can be regulated by a set-screw, b, as shown in the side view, Fig. 1, ofthe accompanying drawing. In Fig. 2 the two jaws are shown as detached from each other, the central pin, by which they are hinged together, having been removed. The two arms, where they are connected together, are halved, as shown'in Figs. 2 and 3, the rounded projection of one halt' fitting snugly in a recess of corresponding form in the other half, so that there may be at the joint an extended bearing-surface, which, when the nut of the bolt is tightened, insures a proper lateral steadiness for resisting the strain to'which the instrument is subjected. The jaws a a are of hardened steel, and are of a proper shape for applying to the tooth of the saw, the extent of opening between the jaws to suit the blade to which they are applied being determined by the above-mentioned setscrew b, which passes through a projection, e,
of one arm, and when the jaws are Aopened comes in contact with a projection, e', on the other'arm.
The two arms are of the same length, and are provided at the ends with suitable handles, which the operator grasps, one with his right hand and the other with his left, and manipulates the instrument in the following manner: Having adjusted the screw b so that the jaws when open will fit snugly but freely over the tooth of'the saw, the operator depresses one arm so as to bend the tooth in the direction desired, and then raising both arms relieves the instrument from the blade and adjusts it to the next tooth, which, by a depression of the other arm, is bent in a. direction contrary to that of the tooth last operated on. Thus tooth after tooth can be set with rapidity and ease.
I claim as my invention- A saw-set, composed of two arms, A and A', hinged together, and presenting jaws a a, the opening of which is determined by a set screw, b, alLsubstantially as set forth.
In testimony whereofl I have signed my name to this specification in the presence of two subscribing witnesses.
. JOHN SMITH. Witnesses:
WM. H. WRIGHT, E. B. LONG.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US150626A true US150626A (en) | 1874-05-05 |
Family
ID=2220039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US150626D Expired - Lifetime US150626A (en) | Improvement in saw-sets |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US150626A (en) |
-
0
- US US150626D patent/US150626A/en not_active Expired - Lifetime
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