US292176A - Saw fastening and frame - Google Patents
Saw fastening and frame Download PDFInfo
- Publication number
- US292176A US292176A US292176DA US292176A US 292176 A US292176 A US 292176A US 292176D A US292176D A US 292176DA US 292176 A US292176 A US 292176A
- Authority
- US
- United States
- Prior art keywords
- saw
- frame
- pin
- fastening
- pratt
- 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 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000003247 radioactive fallout Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
- 238000004904 shortening Methods 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
- B23D51/00—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends
- B23D51/08—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of devices for mounting straight saw blades or other tools
- B23D51/12—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of devices for mounting straight saw blades or other tools for use with tools, dealt with in this subclass, which are connected to a carrier at both ends, e.g. bows adjustable in length or height
- B23D51/14—Attachment of the tool
Definitions
- Figure 1 represents a section of the sawframe A, made in two parts overlapping each other, and held together with the screw 13. This overlapping is for the purpose of lengthening and shortening the frame to fit various lengths of blades; but as this device is already in use, I make no claim for its invention.
- Fig. 2 represents the two slotted bolts D and d of the saw-frame, into which the ends 4 of the sawblade are inserted, and the bent pin of the pin 0 runs is reamed out. nearly its whole length, but leaving a narrow neck on the outside, through which the head of the bent pin cannot pass, the pin being headed after it is inserted in the bolt; consequently, when the point of the pin 0 is drawn back past the slot in which the saw-blade rests, thus permitting the saw-blade tobe removed, the head is still within thebolt, preventing the pin from falling out.
- Fig. 3 represents the saw-frame entire, with metallic bow, wooden handle, thumb-nut for straining the saw, slotted bolt, and the sawblade held in place by the two bent pins, and ready for use.
- bent pin headed at one end and pointed at the other, for holding asaw inits frame, in combination with the bolt D and d, ortheir equivalents, substantially as and for the purposes specified.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Surgical Instruments (AREA)
Description
(ModeL) H. L. PRATT.
. SAW FASTENING ANDTBAME. N0. 292,176. I Patented Jan. 22, 1884.
" N. PETERS. Phako-Lilhogfilphlr. Washington, n.c.
UNITED STATES PATENT OFF CE.
HENRY L. PRATT, OF BROOKLYN, NEW YORK.
SAW FASTENING AND FRAME.
SPECIFICATION forming part of Letters Patent No. 292,176, dated January 22, 1884.
Applicalionfiled November 9,1883. (Modem To all whom it may concern Be it known that I, HENRY L. PRATT, a citizen of the United States, and a resident of Brooklyn, in the county of Kings and State'of New York, have invented a new and useful Improvement in Saw-Fastenings and Saw- Frames, of which the following is a specification.
Various methods have hitherto been in use for attaching saw-blades to their frames; but generally it has been accomplished by the use of a straight iron pin. This pin in common use is held firmly in its place when the saw is strained, but falls out easily when the strain is removed. v
Now. my improvement consists in so constructing this pin that it cannot fall out and be lost. 7
I am aware of the invention of John Class, patented July 3, 1883, in which he uses a straight pin for holding a saw in its frame, so headed that it will not fall out. This device is suited to wide saws, which will admit of large holes being punched through them; but
for narrow saw-blades something different must be provided, and for this need my invention provides.
Figure 1 representsa section of the sawframe A, made in two parts overlapping each other, and held together with the screw 13. This overlapping is for the purpose of lengthening and shortening the frame to fit various lengths of blades; but as this device is already in use, I make no claim for its invention.
Fig. 2 represents the two slotted bolts D and d of the saw-frame, into which the ends 4 of the sawblade are inserted, and the bent pin of the pin 0 runs is reamed out. nearly its whole length, but leaving a narrow neck on the outside, through which the head of the bent pin cannot pass, the pin being headed after it is inserted in the bolt; consequently, when the point of the pin 0 is drawn back past the slot in which the saw-blade rests, thus permitting the saw-blade tobe removed, the head is still within thebolt, preventing the pin from falling out.
Fig. 3 represents the saw-frame entire, with metallic bow, wooden handle, thumb-nut for straining the saw, slotted bolt, and the sawblade held in place by the two bent pins, and ready for use.
I claim- The bent pin 0, headed at one end and pointed at the other, for holding asaw inits frame, in combination with the bolt D and d, ortheir equivalents, substantially as and for the purposes specified.
In testimony that I claim the foregoing as my invention I have signed my name, in presenee of two witnesses, this 1st day of November, 1883.
HENRY L. PRATT.
' \Vitnesses:
E. P. STOUGHTON, L. SoHREYvoGn
Publications (1)
Publication Number | Publication Date |
---|---|
US292176A true US292176A (en) | 1884-01-22 |
Family
ID=2361363
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US292176D Expired - Lifetime US292176A (en) | Saw fastening and frame |
Country Status (1)
Country | Link |
---|---|
US (1) | US292176A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2691396A (en) * | 1950-06-26 | 1954-10-12 | Harrison Henry | Positioning connector for hack saw blades |
US2696233A (en) * | 1950-11-14 | 1954-12-07 | Millers Falls Co | Keyhole saw |
-
0
- US US292176D patent/US292176A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2691396A (en) * | 1950-06-26 | 1954-10-12 | Harrison Henry | Positioning connector for hack saw blades |
US2696233A (en) * | 1950-11-14 | 1954-12-07 | Millers Falls Co | Keyhole saw |
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