US 1017207 A
Description (OCR text may contain errors)
STONE SAWING MACHINE.
7 APPLICATION FILED MAY 14, 1910. 1,01 7,207, Patented Feb. 13, 1912.
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Attorneys E. EGGERS.
STONE SAWING MACHINE.
APPLICATION FILED MAY 14, 1910.
Patented Feb. 13,1912. 7
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, E. EGGERS.
- STONE SAWING MACHINE.
APPLIOATION FILED MAY 14. 1910.
Patented Feb. 13,1912.
3 SHEBTS-SHBET 3.
Witnesses Attornys UNITED STATES PATENT OFFICE.
ERNEST EGGERS, OF NEW YORK, N. Y., ASSIGNOR TO COLORADO-YULE MARBLE (30., OF NEW YORK, N. Y.
Specification of Letters Patent.
Patented Feb. 13, 1912.
To all whom, it may concern:
Be it known that I, ERNEST Econxs, a subject of the Emperor of Germany, residing at New York, in the county of New York and State of New York, have invented a new and useful StoneSawing Machine, of which the following is a specification.
This invention has reference to improvements in stone sawing machines, the object being to provide a machine wherein the cutting tool is an endless wire strand or cable cooperating with an abrasive to cut into the stone. v
In accordance with the present invention the stone may be cut into blocks or slabs, or cylinders or in arcs of large diameters, or other shapes which may be desired.
The invention will be best understood from a consideration of the following detail description taken in connection with the accompanying drawings forming a part of this specification, in which drawings Figure 1 is an elevation partly broken away of a stone sawing machine embodying the present invention. Fig. 2 is an end elevation of the tension end of the machine also partly broken away. Fig. 3 is an elevation on a larger scale than Fig. 1 of a port-ion of the feeding means. Fig. 4 is a plan view of the structure shown in Fig. 3 with some parts omitted. Fig. 5 is an elevation of the end of the machine remote from that shown in Fig. 2. Fig. 6 is a detail view partly in section and partly diagrammatic showing the means for removing the abrasive and removed stone particles from the cable or cutting strand. Fig. 7 is a diagrammatic view illustrating an arrangement of the machine for cutting cylinders in whole or in part. Fig. 8 is an end view of the power end of the stone supporting structure of Fig. 7. Fig. 9 is an enlarged section through a portion of the frame and showing the journal box mounted for sliding movement in the guides, the adjusting screw being shown in section. Fig. 10 is a back view of the frame and showing the screw and a. portion of the journal box.
Referring to the drawings and more particularly to Figs. 1, 2, 3, 4, and 5, there is shown in Fig. 1 two spaced supports 1, 2, respectively, which are assumed to be erected at one end of the machine.
One of the supports, say the support 2, carries a drum 3 around which is assumed to be wound an appropriate length of a cable 4 either made of a single strand or a number of strands twisted together into the form of a cable, but the term cable will be hereinafter used to designate the cutting strand whether made of one or more individual strands.
Mounted on the support 1 is another drum 5 of appropriate size and the cable 4 is carried back and forth between these drums an appropriate number of times. Power may be applied to either one of these drums to drive the cable, or it may be applied at any other point.
In Fig. 1 a drive pulley 5 has been shown upon the shaft of drum 5.
From one end of the drum 3 the cable 4 passes to an idler pulley 6 and thence across the frame 2 to another idler pulley 7 and from the latter around another pulley 8 mounted in a structure best shown in Figs. 8 and 4 to which reference will presently be made.
From the pulley 8 the cable extends to another pulley 9 in line therewith, and by a structure similar to that carrying the pulley 8, this last named structure being supported in a frame 10 spaced an appropriate distance from the frame 2.
From the pulley 9 the cable extends around an idler pulley 11 mounted on a carriage 12 provided with wheels 13 adapted to tracks 14 on the frame 10, these tracks extending in the direction of the run of the cable between the pulleys 8 and 9.
The carriage 12 has a rope or chain 15 attached thereto, this rope extending over a pulley 16 and carrying at the other end a weight 17 tending at all times to keep the carriage 12 at one end of the track 14.
The cable 4 extends from the idler 11 back to the frame 2 where it passes over another idler 18 and from thence to the drum 5 and then back and forth between the drums 5 and 3 as before stated.
The direction of movement of the cable 4 is from the pulley 9 toward the pulley 8 and consequently the outgoing run of the cable is from the idler 18 to the idler 11 and thence returning by way of the pulley 9 to the pulley 8 and ultimately back to the roller 3. The run of the cable between the pulleys 9 and 8 is the active run of the cable and this portion of the cable is designed to act upon a block of stone mounted upon a produced by the cable is perpendicular to the surface of the table 19 and rectangular slabs or blocks are readily cut by the structure of Fig. 1.
The arrangement shown in Figs. 7 and 8 is adapted for cutting blocks of stone into cylindrical shape or producing arc shaped portions described about the longitudinal axis of the block. For this purpose a head stock and a tail stock 56 is mounted on the table 19 or upon any other suitable support between the frames 2 and 10.
The head stock 55 is provided with a spindle 56 provided with a worm wheel 57 engaged by a worm 58 on a shaft 59 carrying a pulley 60 driven by a belt 61 coming from another pulley 62 on a shaft 63, receiving power from any suitable source, and this shaft may receive power similar to the shaft 37 for feeding the cable to the work.
Considering the block 25 as mounted between the spindles of the head and tail stocks 55 and 56 then the cable imay be caused to enter the block radially for the desired distance so that the distance from the axis of the head and tail stocks to the point of entrance of the cable into the block determines the radius of the contemplated cylinder. Now by holding the cable against movement except in the direction of its length between the pulleys or sheaves 9 and S and by slowly rotating the block 25 at a speed agreeable to the speed of the cable through the stone, there is produced a circular out about the axis of rotation of the stone and if the stone be carried through a complete rotation then the resultant product is a cylinder.
As each of the guide pulleys 8 and 9 drive a friction disk 51 adjustably engaged by a disk 50, it will be seen that, by separately moving these disks 50 along the faces of the disks 51, the disk 39 and the adjusting screws 31 can be driven in either of two directions separately or simultaneously and at the same or different speeds so as to shift the pulleys 8 and 9 respectively and the active portion of the cable extended between said pulleys.
What is claimed is 1. In a stone cutting machine, an endless cutting cable, guides therefor, yielding means for holding the cable normally taut, said cable having its active portion held straight between two of the guides, and independently operable means actuated by the cable for shifting said last mentioned guides toward the work.
2. In a stone cutting machine, an endless cutting cable, revoluble guides therefor and operated thereby, the active portion of the cable being interposed between two of the guides, means for yieldingly holding the cable taut, and means operated by the last mentioned guides when rotated by the cable, for feeding the active portion of the cable in either of two directions and for moving said last mentioned guide devices at the same or at different speeds.
3. In a stone cutting machine, the combination with a cutting cable and means for driving the same, and yielding means for holding the cable taut during the movement thereof, of guide pulleys engaged and rotated by the cable, the active portion of the cable being interposed between the pulleys, and separately operating means actuated by the respective pulleys for feeding said pulleys in either of two directions separately or simultaneously at the same or different speeds, to shift the active portion of the cable therewith.
4. In a stone cutting machine, an endless cable, means for driving the same, said cable constituting cutting means, guide pulleys engaged and actuated by the cable, the active portion of the cable being interposed between the pulleys, yielding means for holding the cable taut under all conditions, a slidable frame carrying each of the pulleys, said frames being separately movable, separately operable feed mechanism connected to each frame, friction gearing for transmitting motion from each pulley to the feed mechanism of the frame on which the pulley is mounted, means for shifting said mechanism to vary the speed or reverse the movement of the feed mechanism to raise or lower the frames and the pulleys thereon together with the active portion of the cable mounted on and between the pulleys.
In testimony that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two witnesses.
. ERNEST EGGERS.
J. F. PARRISH, GEO. B. TAYLOR.
Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.
Washington, D. C.