US989122A - Stone-dressing machine. - Google Patents

Description

E. COLLINS.

STONE DRESSING MACHINE. APPLIOATION FILED DBO. 9, 1909. l989,122. Patented Apr. 11, 1911.

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E. COLLINS.

STONE DRESSING MACHINE. APBL'IOATION FILED was; 1009.

Patented Apr. 11, 1911.

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UNITED STATES PATEN T OFFICE.

EDWARD COLLINS, `0F BROOKLYN, NEW YORK.

i STONE-DRESSING MACHINE.

To allwhom it may concern:

Be i it `known `that I, EDWARD COLLINS, citizenof the United States, and resident of Brooklyn, in the county of `Kings and State of New York, have invented certain new and useful Improvements in 'Stone-Dressing .Machines, of which `the following is a specification.

invention relates to stone dressing machines, "and the object is to provide means lforretaining the cutting medium upon the revolving disks or circular plates.

Another object is to `provide means for raising Cthestone operated upon when it is traveling backward and forward over the revolving disks.

Referring to the drawings Figure 1. is

a sidefelevation fof-a stone dressing machine embodying 'my improvements. Fig. 2. is a topview ofthe same. Fig. 3, is a'detached plan view of the retaining rim showing the attachments thereto, enlarged. Fig. 4, is a longitudinal section of the rim on line Fig.'3. 1Fig.'5, iscross sectional view of the rim on line y, y, Fig. 3. Fig. 6, is another elevation-of a stone Adressing machine showing the `method by which the revolving disks a-re-magnetized, and fused in conjunction'with the retaining rim. Fig. 7, is a longitudinal section of a modified formof the rim.

The rstone dressing "machine in this case comprises the frame4,\suitably braced and supported Aon a bed plate 5. Within this 'frame revolve two disks or plates 6 `and 7 in close proximity to each other, see Figs. 1 2. The faces 8'of these disks are each provided withfcurved grooves 9 commencing from the vcenter ofthe disk and terminating at or near the outer edge of the same where they are suitably closed or'cut-ofi', see Fig. 2. The side walls of the grooves 9 may be made either' perpendicular orinclined inwardly, but preferably inclined inwardly. The grooves can be cut in the facesv of the disks or created by segments 9a fastened on the top of the disks j at certain distances apart, said distances corresponding to the width of the grooves. The

, face of each of the kdisks has a center hole 10, and around this hole is formed a circular depression, or dish, leading into the curved grooves 9. The disks are each mounted on the upper end of a hollow vertical shaft 12, supported on ball bearings mounted on the base plate 5. These shafts 12 are further supported by block bearings 13 supported in the bed plate; and these blocks 13 are Specification of Letters Patent.

`Application ledecember 9, 1909.

VPatented Apr. 11, 1911. SerialNo. 532,173.

bearing supports for the `driving axles 14, upon which are mounted the driving pulleys 15, and bevel gears 16, 'which mesh into the bevel gears 17 mounted Ion the ihollow vertical shafts 12. This mechanism revolves the disks -6 and T in the direction of the arrows, Fig. 2.

Over the revolving disks G Tis suspended the material 18 to be cut or dressed, said material may consist of astone of anycharacter. The stone is suspended from the traveling carriage 19 by grappling arms 22, which are suitably connected to the saidoarriage, and `made adjustable in order to -ad just the stone above the disks for regulating the distance, said distance should be .however suiiicient to allow the chilled shot, the cutting material, to `pass under the stone and effect the required cutting action. The carriage travels lbackward and forward on the top rail 21, of the frame, `upon the grooved wheels 20 mounted on said carriage, see Figs. 1 2. The carriage is moved back and forth by the worm shaft '23, mounted on frame and suitably Yoperated automatically. To prevent the chilled shot being centrifugally thrown off therevolving disks 0 7 I use the retaining rim or fender 24 intended to rest on the said disks at or near their outer edges, see Figs. 1 2 and 3. The edge of this rim-fender is preferably inclined inward, see Figs. 4 5, 4but under certain conditions, this edge is inclined outward, see' Fig. 7, or perpendicular, see Fig. 6. The rim V24 is secured to the joining pieces 25 `which fill in the spaces between the 4centers `lifting bodily oill `the same. As the :faces of the disks wear `down incutting :the stone the rim must conform thereto; and I elnploy any suitable means to adjustably regulate the restingfof the rim on the disks that will conform `to `th-e 'wearing away of the said disks. The rim on the inside, at point 28, has secured to it the curved deflecting rim 29, the outer ends thereof being so curved 4that it kwill throw the chilled shot toward the center of the disks. At 31 the inside of the rim 24, has secured to it the directing shield 32 serving to throw the cutting material or chilled shot toward and under the stone. Both the deflecting rim 29, and the directing shield 32 have their .rim edges inclined inwardly. Now as the cutting material, or chilled shot, reaches the disks, either by hydraulic pressure forcing the shot up through the hollow vertical shaft 12, or by means of tubes directing it from above the disks down on the same; it will be forcibly carried under the stone and retained upon the disks by the curved detlecting rim 29 and shield 32, and also by that portion 83 of the directing rim 24. No occasion can now arise for the said cutting material being centrifugally forced o the disks/in their revolutions until it has produced its work and become reduced to uselessness, in which state it will be carried off by the water usually used with the chilled shot in these machines.

\ As the cutting material is thrown against the shield 32, at 34, between the stone and rim, it may have a tendency to bank itself up at that point, and be prevented from passing under the stone for doing effective work on same. This objectionable feature I overcome by raising the carriage 19, as it travels to and fro on the frame, which lifting action will also raise the stone suiiiciently to release the pent up cutting material, and allow it to pass under the stone. I raise the carriage 19 by the wedges 35 mounted on the rails 2l, and as the wheels 2() of the carriage mount, the said wedges in either travel they will of necessity carry with it the carriage and the stone attached or suspended therefrom. It may be advisable under certain conditions to magnetize the revolving disks toV retain the cutting material thereupon. In Fig. 6, I have shown a machine having magnetizing disks, and also the above described mechanical means for retaining the cutting material on the disks for the purpose of showing how the two can be worked together and in conjunction with each other. I have shown three wedges 35. The center wedge tends to raise the stone bodily. The two end wedges tend to tilt the stone when raising same. This is necessary under certain conditions. The rim 24 need not be secured to the deflecting rim 29v and directing shield 32 rigidly. To effect the best result of the rim on the disks, adjustably, the securing points should be pivoted.

l/Vhat I claim is,-

l. In a stone dressing machine consisting of revolving curved grooved disks, an inwardly inclined retaining rim or fender,

resting upon said disk around the outer edges, an inwardly inclined deflecting rim, said deflecting rim secured to the inside of said retaining rim at the point where the disks travel outwardly and 'means for supporting said retaining rim in position.

2. In a stone dressing machine comprising revolving curved grooved disks, an inwardly inclined retaining rim or fender resting on the outer edges of said disk, an inwardly inclined deflecting rim, securedy to the inside of said retaining rim, at a point where the said disks travel outwardly, a' directing shield secured to` said retaining rim at a point where the said disks travel inwardly, means for supporting and retaining said oblong retaining rim.

3. In a stone dressing machine,'comprising a frame, revolving curved grooved disks, a traveling carriage, with traveling wheels, supporting the cutting material over the said disks, means for raising the said carriage and stone at the end of said carriage travel, compressing Wedges, said wedges mounted on the top rail'of the said frame, and over which ride the traveling wheels of the said carriage for eifecting the carriage Y lift to permit the stone suspended therefrom to rise to allow the cutting material to pass under said stone.

'4. In a 'stone dressingy machine a retaining rim revolving curved closed grooved disks on which the said retaining rim rests and encircling the outer edges thereof, means for holding said rim from moving laterally upon said disks and means for preventing the said rim lifting bodily off said disks, and means for adjustably conforming said rim to the wearing down'of the faces of said disks,`and means for supporting and revolving said disks.

' 5. In a stone dressing machine mechanism for retaining the cutting material on the revolving disk of said machine, comprising a rim or fender resting cling the said revolving disk, said fender having its edges inclined outwardly, means for supporting said fender in astationary yielding position on the said disk, and means for revolving said disks.

Signed at Brooklyn in the county of Kings and State of New York this 6th day December A. D. 1909. v

EDWARD CLLINS.

Witnesses:

ELIZABETH COLLINS, MICHAEL N. DELAGI.

Copies of this patent may 'be obtained for Vve cents each, by addressing the Washington, D. C.

a Y Commissioner of Patents',

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