US92767A - Improvement in saw-frames - Google Patents
Improvement in saw-frames Download PDFInfo
- Publication number
- US92767A US92767A US92767DA US92767A US 92767 A US92767 A US 92767A US 92767D A US92767D A US 92767DA US 92767 A US92767 A US 92767A
- Authority
- US
- United States
- Prior art keywords
- saw
- hinge
- frame
- frames
- tension
- 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
- 230000000414 obstructive Effects 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 241000763859 Dyckia brevifolia Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 101700082413 tant Proteins 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
- B23D51/125—Blade tensioning means
Definitions
- brace-rod or stretcher In most saw-frames in use, there is a brace-rod or stretcher ruiming from one part tothe other, parallel to the saw, intermediate between the saw and the other extremes of the parts. This, brace or stretcher is in the way, and proves aniuconvenient obstruction when needful to saw deep cuts through thick sticks.V
- K K' of the accompanying drawings, lshow the tension-arms, with a bolt, with screw on which the nut turns, for tension.
- E F is a transverse cut through the cavity receiving the ends of the saw-blade.
- c l show a transverse 'cut through the saw-frame.
- y A A show the two parts ot' saw-frame in combination.
- B shows the saw in combination.
- H shows the hinge in combination.
- Figure 1 shows the saw-frame combined with the ⁇ witnesseses:
Description
. N. PETERS. PHOTO-UTNOGRAPNER. WASHINGTON. D C.
tnite tant stent' Gettin.
Letters Patent No. 92,767, dated July 20, 1869.
IMPRVEMENT IN SAW-FRAMES.
The Schedule referred to in these Letters Patent and making part of the same.
To all whom it may concern? Be it known that I, ABEL XVHITLOGK, of Danbury, in the county of Fairfield, in the State of Connecticut, have invented a new and improved Saw-Frame; and I do hereby declare that the following is a full and exact description thereof, reference `being had to the accompanying drawings, and to the letters of refe-rence marked thereon. `\--\J The nature of my invention consists in providing my saw-trame with a hinge and tension-arms. l By my hinge I easily adjust the frame to receive saws of various sizes.
My tension-arms acting with the movement of the hinge, the pivot of the hinge becomes their fulcrum.
By the combined action of the hinge and tensionarms, I am able to dispense with the brace used in the common saw-frame, and the long tension-rod.
To enable others skilled in the art to make'and to use my invention, I will proceed to describe its construction and operation.
I construct my saw-frame of" cast-iron, although it may be made of other materials.
I cast the saw-frame in two pieces, each piece having a Vcavity to receive the ends of thesaw-blade, and
each piece having a part of the hinge; the cavity being near one extreme, and the hinge near the other extreme of the pieces, and each piece having a tensionarm extending from near the hinge outward.
The tension-arms, when combined, answer also the purpose of one of the handles; -the other handle being an extension on one piece below the cavity.
I attach the two parts by a suitable bolt or rivet through the hinge.
I attach the saw by bolts, rivets, or screws, and by means of a suitable bolt passing through the tensionarms, I adjust the tension of the saw.
When the parts of my frame and saw are all combined, it gives tothe frame the appearance of au arch outward from the saw.
In most saw-frames in use, there is a brace-rod or stretcher ruiming from one part tothe other, parallel to the saw, intermediate between the saw and the other extremes of the parts. This, brace or stretcher is in the way, and proves aniuconvenient obstruction when needful to saw deep cuts through thick sticks.V
In my saw-frame my hinge and tension-arms overcome any need of such braceaod or stretcher, hence any obstruction from it.
K K', of the accompanying drawings, lshow the tension-arms, with a bolt, with screw on which the nut turns, for tension.
l) (t show the hinge, cnt transversely.
E F is a transverse cut through the cavity receiving the ends of the saw-blade.
c l show a transverse 'cut through the saw-frame.
y A A show the two parts ot' saw-frame in combination.
B shows the saw in combination. H shows the hinge in combination.
Figure 1 shows the saw-frame combined with the` Witnesses:
DAVID B, BOOTH, I; N.. JnNNINGs.'
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US92767A true US92767A (en) | 1869-07-20 |
Family
ID=2162244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US92767D Expired - Lifetime US92767A (en) | Improvement in saw-frames |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US92767A (en) |
-
0
- US US92767D patent/US92767A/en not_active Expired - Lifetime
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