US1095708A - Stone-cutting machine. - Google Patents

Description

Patented May 5, 1914.

2 S EET B-SEEET l.

Witnesses athwnu COLUMBM PLANOGRAl-H co.. WAS

E. A. CHASE.

STONE CUTTING MACHINE.

APPLIOATION FILED 13:50.21, 190s. RBNEWED SEPT. 1. 1911.

Patented May 5, 1914.

2 SHEETS-SHEET 2.

UNTTEB STATES PATENT @FETCH ELROY A. CHASE, OF NORTHFIELD, VERMONT, ASSIGNOR, BY MESNE ASSIGNMENTS,

TO AMERICAN GRANITE SAW COMPANY, OF KITTERY,

OF MAINE.

MAINE, A CORPORATION STONE-CUTTING MACHINE.

Application led December 21, 1908, Sera] No. 468,568. Renewed September 1, 1911.

To all whom t may concern.'

Be it known that I, Elinor A. CHASE, a citizen of the United States of America, residing at Northfield, in the county of lvlashington and State of Vermont, have invented certain new and useful Improve ments in Stone-Cutting Machines, of which the following is a full, clear, and exact specification.

rThis invention relates to improvements in stone-cutting machines and has for its primary object the provision of a machine in which a gang of reciprocating cutters may be utilized in such a manner as to produce a perfectly true and Straight cut.

.Vith this object and such other incidental objects as hereinafter appear in view,` the invention consists in certain novel features of the apparatus illustrated in the accompanying drawings, all of which will be hereinafter first .fully described and then )articularly pointed out in the claims.

In the said drawings, Figure 1 is a view partly in elevation and partly in longitudinal section of an apparatus embodying my in *ention Fig. 2 is a rear end view of thiem'e. Fig. 3 is a perspective view of de- Vtails hereinafter described.

The main frame, 1, may be of any suitable construction and is of sufficient width to eX- tend over a track, 2, upon which trucks or cars, 3, carrying the stone, travel so as to feed the stone blocks to the cutters. The trucks or cars are preferably composed of a lower platform 4L provided with wheels or rollers, 5, by which it is moved longitudinally over the track 2. Upon the upper side of the platform et, I provide trans- Y verse guides or rails, 6, on which an upper platform, 7, is mo-unted by means of roll-- ers or wheels, 8, so as to travel laterally with respect to the main frame and the track 2. Any suitable form of power may be ap plied to the lower platforms to move them along the main track but the Lipper platforms are preferably moved across the lower platforms by means of threaded collars or nuts, 9, on the underside of the upper platforms engaging worms or screws, 10, mounted transversely on the lower platforms and having beveled pinions, 11, at one end, the said beveled pinions meshino' with similar pinions, 12, on shafts, 13, which are mounted longitudinally on the side of the lower Specification of Letters Patent.

Patented May 5, 191 al.

Serial No. 647,225.

platform or truck and provided with operating' cranks Or handles, 14.

The main frame is constructed of posts, 15, braces, 1G, bearing against the posts, and transverse and longitudinal beams, 17, 18, connecting' the posts, the several parts being firmly secured together by means of tie rods or trusses, as will be readily understood. Mounted in the transverse beams and arranged adjacent to the posts, are screw rods, 19, provided with bevel pinions, 20, on their upper ends which mesh with similar pinions, 21, rigidly secured on the shafts, 22, mounted on the upper sides of the transverse beams and carrying band pulleys, 23, at one end to which power may be applied from the driving engine. rThe lower en ds of the screws 19 engage the box-es or nuts, 24, so that the rotation of the vscrew rods will cause the said nuts or boxes to move up or down and they are guided in their vertical movement by ways or guides, 25, secured to the posts and with which they engage. Pivotally secured to the nuts 2st and projecting above the same are brackets, 26, which are formed with dovetailed ribs or cleats on their upper sides and these dovetailed ribs or cleats are engaged by slides on the undersides of longitudinal beams, 27, of an adjustable supporting frame, the remainder of said frame consisting of lower longitu` dinal beams, 2S, and rigid transverse beams, 29, inclined slightly edgewise and secured to and connecting the said beams 27 and 2S. Upon the upper and lower edges of the transverse beams 29 are secured grooved inclined brackets or lugs, 30, in which the cutter frame is mounted. This cutter frame consists of two rectangular end members mounted to slide in the grooved brackets 30 and consisting of the rails, 31, engaging t-he brackets and the posts, 32, connecting the rails. The posts 32 are extended below the lower slides and to the said depending eX- tended ends, clamping bars, 3:3, are secured, the said clamping bars being disposed hori Zontally when in their normal position. The two end members of the cutter frame are connected by a beam or connecting bar, 34, and the cutters or blades, 35, are secured by and between the clamping bars 33. Movement is imparted to the cutter frame and the cutters carried thereby through the medium of a pitman, 36, pivotally attached to the said traine at one end and having its other enc attached to a crank, 3T, mounted on the main trame and driven from the engine or other motor.

It will be readily seen from the -foregoing description, taken in connection Wit-l1 the accompanying drawings, that the cutters will be so disposed as to cut into the stone obliquely and consequently the large blocks may be fed through the machine continuas each blade or critter' Will cut slightly er than the cut-ter preceding it so that the bloelr will be cut through i'rom topy to bottom as it passes through the machine. T he arrangement also assures a straight cut as each blade will follow the path marked out 'for it by the preceding cutter. The screw rods and adjustable trame, however, provide means i'or tilting the cutter trame te a differeutangle so as to Worlr on a larger or smaller block and the ends of the adjustable trame may be set at different heights so as to accommodate small stones in which shallow cuts are to be made` Parallel kerts may be made in the blocks by running them through the machine to maire an initial hert and then adjusting the upper platforms or cars transversely aitter Which they may be drawn through the machine to receive a second cut parallel with the rst cut.

liaving thus described my invention, What claim and desire to secure by Letters aient is l. In a stone sawing machine, the conibination ot a lool supporting frame, a plurality ot cutters arranged edgewisely in alim-meut. in said iframe, means 'for effecting a relative ifeed movement between the stone and the cutters, and means whereby the trame may be adjusted so that the line at which the cutters act can be varied relatively to the line. ot feed, and the machine may be thereby adapted to cut stone ot different thicknesses.

Q. The combination ot iiltahle trame supported thereon, a. cutter trame slidably mounted on said tiltable traine and provided with a series of depending cutters, means `tor reciprocating said cuta main fra-ine, a

ter frame, and means tor causing said cutter frame to Work in an oblique line of travel with reference to the tiltahle trame when reciprocated.

3. The combination. ot' a supporting trame, a cutter Jframe having depending cutters gradually increasing in length toivard the rear end of the cutter traine, guides on the supporting trame 'for said cutter iframe inclined longitudinally With respect to the supporting trame, means for reciprocating said cutter traine, and means for feeding stone longitudinally under said cutter trame.

4. rlhe combination of a supporting trame, a cutter trame having depending rigid cutters gradually increasing in length toward the rear end of the cutter frame, guides on the supporting frame for said cutter trame inclined longitudinally with respect to the supporting trame, means tor reciprocating said cutter -trame, and means for feeding stone longitudinally under said cutter trame.

5. in an apparatus of the class described, means tor moving the stone, a frame thereover, a supplenental trame supported in sai d frame, means for raising and lowering each end ot said frame independently, guides on said tiltable :traine inclining in the direction ot movement of the saw, an obliquely slidable saw frame mounted in said guides and carrying a series of depending saw teeth, and means for reciprocating said saw trame.

G. stone cutting machine comprising fixed uprights, a Werk support, a tool support tiltably mounted on said uprights, a series of tools .in edge-Wise alinement mounted on said tool support, and means for adjusting said tool support relative to said Work supportl to bring` the operative portions of the several tools to diiierent angles relative to the Work support.

ln testimony whereof I have signed my naine to this specification in the presence of two subscribing Witnesses.

ELROY A. CHASE.

llVitnesses 1 M. D. SMITH, ALEX. Ennis.

Gopes of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C.

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