US168786A - Improvement in diamond-saws for cutting stone - Google Patents

Improvement in diamond-saws for cutting stone Download PDF

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US168786A
US168786A US168786DA US168786A US 168786 A US168786 A US 168786A US 168786D A US168786D A US 168786DA US 168786 A US168786 A US 168786A
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saws
diamond
improvement
cutting stone
stone
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28DWORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/12Saw-blades or saw-discs specially adapted for working stone
    • B28D1/127Straight, i.e. flat, saw blades; strap saw blades

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  • my invention relates to an improvementin stone-saws ofthat class wherein carbon points are secured to one edge of theblade to serve as cutters; and its object is to afford a means for readily and firmly securing the carbon points in position.
  • the invention consists in a saw-blade made or built up of two thin strips with spacerblocks riveted between them, each having a socket in an outer corner to receive one corner of the carbon point, which is held therein by a gib pressed against the other by a wedgeshaped key, as more fully hereinafter set forth.
  • Figure 1 is a perspective view of my saw.
  • Fig. 2 is a longitudinal section.
  • A represents the saw-blade, built up of thin strips of steel, with spacerblocks B riveted between'the blades wherever a carbon point is to be inserted.
  • a half-dovetail notch is cut to receive the base of a prismatic point, a, which is held in place by the corner of a gib, O, inserted from the back of the saw, and which gib is filed to fit and embrace the projecting corner of the point a, the gib being forced against it by a wedge-shaped key, D, driven between it and the next spacer-block.
  • the carbon points need not necessarily be uniform in size and shape, as heretofore, as the gib corner can be filed to tit accurately an uneven or odd-shaped point that is to be se- HENRY HUNG.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Description

H. RUNG.
Diamond-Saw for Cutting Stone.
Patented Oct. 11, 1875.
I v M 22% UNITED STATES PATENT OFFICE.
HENRY RUNG, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF HIS RIGHT TO ROBERT BAUMGARTEN, OF SAME PLACE.
IMPROVEMENT IN DIAMOND-SAWS FOR CUTTING STONE.
Specification forming part of Letters Patent No. 168,786, dated October 11, 1875; application filed August 10, 1875.
To all whom it may concern:
Be it known that I, HENRY HUNG, of Chicago, in the county of (look and State of Illinois, have invented an Improvement in Diamond-Saws for Out-ting Stone, of which the following is a specification:
The nature of my invention relates to an improvementin stone-saws ofthat class wherein carbon points are secured to one edge of theblade to serve as cutters; and its object is to afford a means for readily and firmly securing the carbon points in position.
The invention consists in a saw-blade made or built up of two thin strips with spacerblocks riveted between them, each having a socket in an outer corner to receive one corner of the carbon point, which is held therein by a gib pressed against the other by a wedgeshaped key, as more fully hereinafter set forth.
Figure 1 is a perspective view of my saw. Fig. 2 is a longitudinal section.
In the drawing, A represents the saw-blade, built up of thin strips of steel, with spacerblocks B riveted between'the blades wherever a carbon point is to be inserted. In the outer corner a half-dovetail notch is cut to receive the base of a prismatic point, a, which is held in place by the corner of a gib, O, inserted from the back of the saw, and which gib is filed to fit and embrace the projecting corner of the point a, the gib being forced against it by a wedge-shaped key, D, driven between it and the next spacer-block.
The carbon points need not necessarily be uniform in size and shape, as heretofore, as the gib corner can be filed to tit accurately an uneven or odd-shaped point that is to be se- HENRY HUNG.
Witnesses:
WM. H. LOTZ, GEO. W. FERRIS.
US168786D Improvement in diamond-saws for cutting stone Expired - Lifetime US168786A (en)

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