US267958A - Crosscut-saw - Google Patents
Crosscut-saw Download PDFInfo
- Publication number
- US267958A US267958A US267958DA US267958A US 267958 A US267958 A US 267958A US 267958D A US267958D A US 267958DA US 267958 A US267958 A US 267958A
- Authority
- US
- United States
- Prior art keywords
- saw
- teeth
- crosscut
- blade
- edges
- 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 10
- 238000010276 construction Methods 0.000 description 6
- 241000306729 Ligur Species 0.000 description 2
- 239000002699 waste material 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
- B23D61/12—Straight saw blades; Strap saw blades
- B23D61/121—Types of set; Variable teeth, e.g. variable in height or gullet depth; Varying pitch; Details of gullet
-
- 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
- Y10T83/935—Plural tooth groups
Definitions
- My invention has irelation to crosscut7 or buck 7 saws for sawing timber; and it consists in an improved construction and arrangement of the teeth and drags, as hereinafter more fully set forth, and particularly pointed ont in the claim.
- A represents the sawblade, which may be of any desired length and width.
- C' which letter indicates one of the drags or clearers, is the middle ofthe saw-blade, the teeth B of which are grouped in pairs and connected, the two teeth comprising a pair, by a web, c, uniting their bases. lt will be seen that the teeth have perpeudicular cutting-edges a a in front or facing the ends of the saw, but sloping cutting-edges e c' facing or pointing toward the middle C of the saw.
- the vertical cutting-edges a on one side of the middle and a ⁇ on the other side thereof are all parallel to one anfother and at right angles to the body of the saw-blade, while the sloping cutting-edges c on one side of the middle are parallel to one another, and those, c', of the teeth on the other side ot' the middle are also parallelv to one another.
- B B is a drag-tooth, C, having a reversed bevel in each alternate point d and d', as shown.
- the blade A having teeth B B grouped in pairs, with the teeth of each group united at their bases by a web or raised part ofthe saw-blade c, the groups of teeth B B alternating with drags C, and having cutting-edges a a at right angles tothe body of the saw, and cutting-edges c c sloping from point tobase, with the slope or incline in the direction of the middle of the saw-blade, substantially as and for the purpose herein shown and specified.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Crushing And Pulverization Processes (AREA)
- Professional, Industrial, Or Sporting Protective Garments (AREA)
Description
(NoModel.) G.- W. WILLS.
GROSS-GUT SAW. j
No. 267,958. 'Patented Nov. 21, 1882.
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. ET vLithagnpngr. waehngtun. ILC.
YUNITED y STATES PATENT OFFICE,
GEORGE W. WILLS, O F EAST PORTLAND, OREGON.`
. CROSSCUT-SAW.
SPECIFICATION forming` part of Letters Patent No. 267,958, dated November 21, 1882.
Application filed March 13, 1882. (No model.)
To all whom it may concern:
Be it known that I, GEORGE W. WILLS, of East Portland, in the county of Multnomah and State of Oregon, have invented certain new and useful Improvements in Orosscut- Saws 5 and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification, and in which- Figure 1 isa side view ofthe blade cfa crosscut-saw of my improved construction, and Fig. 2 is a perspective top view of the same.
Similar letters of reference indicate correspending parts in both the ligures.
My invention has irelation to crosscut7 or buck 7 saws for sawing timber; and it consists in an improved construction and arrangement of the teeth and drags, as hereinafter more fully set forth, and particularly pointed ont in the claim.
In the annexed drawings, A represents the sawblade, which may be of any desired length and width. At the point C', which letter indicates one of the drags or clearers, is the middle ofthe saw-blade, the teeth B of which are grouped in pairs and connected, the two teeth comprising a pair, by a web, c, uniting their bases. lt will be seen that the teeth have perpeudicular cutting-edges a a in front or facing the ends of the saw, but sloping cutting-edges e c' facing or pointing toward the middle C of the saw. In other words, the vertical cutting-edges a on one side of the middle and a^ on the other side thereof are all parallel to one anfother and at right angles to the body of the saw-blade, while the sloping cutting-edges c on one side of the middle are parallel to one another, and those, c', of the teeth on the other side ot' the middle are also parallelv to one another. B B is a drag-tooth, C, having a reversed bevel in each alternate point d and d', as shown. This construction of thesaw, with the arrangement of the teeih,`as described, prevents it from sliding or running7 when being used, produces a smooth and even cut, and causes it to run easily and with a minimum of waste friction.
` Having thus described myiuvention, I claim and desire to secure by Letters Patent of the United Statesi As an improvement in crosscut-saws, the blade A, having teeth B B grouped in pairs, with the teeth of each group united at their bases by a web or raised part ofthe saw-blade c, the groups of teeth B B alternating with drags C, and having cutting-edges a a at right angles tothe body of the saw, and cutting-edges c c sloping from point tobase, with the slope or incline in the direction of the middle of the saw-blade, substantially as and for the purpose herein shown and specified. y
In testimony that I claim the foregoing as my own I have hereunto affixed my signature in presence of two Witnesses.
GEORGE WASHINGTON WILLS. Witnesses:
EUGENE L. THORP, VAL. BROWN.
Between each pair of teeth. or cutters
Publications (1)
Publication Number | Publication Date |
---|---|
US267958A true US267958A (en) | 1882-11-21 |
Family
ID=2337207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US267958D Expired - Lifetime US267958A (en) | Crosscut-saw |
Country Status (1)
Country | Link |
---|---|
US (1) | US267958A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2573573A (en) * | 1946-05-27 | 1951-10-30 | Bocjl Corp | Reciprocating blade wood saw |
-
0
- US US267958D patent/US267958A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2573573A (en) * | 1946-05-27 | 1951-10-30 | Bocjl Corp | Reciprocating blade wood saw |
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