US1112250A - Universal stoneworking-machine. - Google Patents

Description

0. BAUER. UNIVERSAL STONBWORKING MACHINE. APPLICATION FILED MAR. 9, 1914. 1,1 12,250. Patented se t. 29, 1914.

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jg Ora?! Zazayr 8y M ATTORNEYS IHE NORRIS PETERS Cot. PHOTO-LITHQ WASHINGTON D. Q

I O. BAUER. UNIVERSAL STONEWORKING MACHINE. APPLICATION FILED MAR. 9, 1914.

Patented Sept. 29, 1914.

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"WE/V TOR WIT/V5885? 0 j Jcar we? j (3 m1 By W ATTORNEYS 11/15 NORRIS FEYLRQ 01.. I'HOTOJJIHQ. WASJ/INGION. D1 (1 UNITED STATES PATENT OFFICE.

OSCAR BAUER, OF NEW YORK, N. Y.

UNIVERSAL sronnwonKrnG-MAo -nnn.

1,112,250. sp fi of er ma my Patented Sept. 29 191a.

Application filed March 9, 1914. Serial No. 823,589. i J g Fig. 1, I show at 10 a vertical driving shaft having associated therewith tight and loose pulleys 11 whereby the rotation of the shaft may be controlled from any suitable source of power (not shown). Said shaft is journaled in bearings 12 and 13, and arranged parallel thereto is an adjusting screw 1 1 cooperating with thebodyof a frame 15 occupying-a substantially vertical plane 00- incidentwith the axes of the shaft 10 and screw 14;. The outer end of the frame member 15 carries a countershaft 16 having a pair of pulleys 17 and 18. The shaft 10 has a pulley 19 from which a belt 20 operates over thepulley 17, driving the countershaft and larger pulley -18. At21 I show a well known form of radius arm journaled for free swinging movement around the axis of the countershaft 16 and carrying at its outer end a shaft 22 rotated by a belt 23 leading from the pulley 18 to and around a smaller pulley 24 connected to the shaft. A grinding wheel 25 of any suitable character is connected to the lower end of the wheel shaft 22 and hence is driven therewith from the initial shaft 16 in all positions of adjustment of the radius arm 21. a

At 26 I show a lever associated with a rock shaft 27 for the purpose of rotating the screw 1 1. through gearing 28 from the driving shaft 10 for the ordinary vertical adjustments of the frame 15 and parts associated therewith. a

As shown in Fig. 1, the screw 14 is extended downwardly below the frame'15 and j is connected by chain and sprocket gearing 29 with a comparatively short vertical shaft 30 in alinementwith the driving shaft 10 and arranged in bearings below the same. NVhile the frame 15 is adapted to swing lat- "erally in either direction around the axis of the driving shaft 10, the screw 14 and gearing 29 are adapted to swing similarly.

At 31 Ishow a, work supporting bed of ,any usual or approved construction and associated therewith and extending preferably vertically therethrough is a non-rotary ad- .justmentscrew 32 carrying at its upper end a cross head 33. The screw 32 is supported upon and adjusted by means of a rotary nut 34: to which are connected sprocket gears 35 and 36. Said nut is journaled upon a base member 37 where it is secured by a collar 38 beneath the bed 31. A sprocket chain 39 leads from a sprocket gear 40 connected tothe short shaft 30 to the sprocket To all whom it may concern: 1

Be it known that I, OSCAR BAUER, a citizen of the United States, and a resident of the city of New York, borough of Brooklyn,

5 in the county of Kings and State of New York, have invented a new and Improved Universal Stoneworking-.Machine, of which the following is a full, clear, and exact description. j

L0 This invention relates to grinding and polishing machines, and particularly such machines as are employed in stone dressing and finishing.

Among the objects of theinvention is to 15 provide an. attachment for an ordinary polishing machine whereby the grinding wheel may be adjusted vertically simultaneously with the usual adjustments of the radius arms of the machine.

20 Another object of the invention is to provide a means for manipulating the Vertically adjusting mechanism by hand auxiliary to the usual power driven adjusting devices.

A still further object of the invention is 5 to provide, in connection with the bedof the machine, a centering or supporting screw 1 and to connect to said screw a cross head for the support of a guide arm associatedwith the axis of the grinding wheel.

30 The foregoing and other objects of the invention will hereinafter be more 1 fully described and claimed andillustratedin the drawings forming a part of this specification in which like characters of reference indicate 35 corresponding parts in all the views, and in which- 1 Figure 1 is a side elevation of a preferred embodiment of the inventionshown in connection with a well known type of polishing 40 wheel machine; Fig. 2 is a detail view showing the means for supporting and adjusting the guide bar supporting screw; Fig. 3 is a plan view showing the device adapted for dressing curved surfaces; and Fig. 4; is a 45 similar view showing the adaptation of the improvement to the finishing of straight sur faces. 1

The several parts of the device may be made of any suitable materials, and the rela- 50 tive sizes and proportions, as well as the general design of the mechanism, may be varied to a considerable extent without departing from the spirit of the invention hereinafter more fully set forth and specifi- 55 cally claimed.

Referring briefly to the illustration in same size.

taneouslywith the ad ustment of the main slight adjustment may rotate idly and end of the auxiliary screw 32 is adapted to .swivel freely upon said which is mounted a guide When both set screws 45 and 47 are loose 'date itself to the movements of the radius wheel 35 whereby rotation of the screw 14: will cause rotation of the short shaft 30 and nut 34, such rotation being simultaneously and at the same angular velocity due to the fact that the several sprocket wheels so far referred to are all of the It follows, therefore, that simulframe 15 and radius arm 21 by operation of the main screw 14, the auxiliary screw 32 will cause the adjustment of the cross head 33 in the same direction.

At 41 I show a hand wheel adjacent the front of the bed and within easy reach of the operator, said wheel being connected to a" short vertical shaft 42. A sprocket chain 43 leads from a sprocket wheel 44 connected to the cross head 33 to and around the aforesaid sprocket wheel 36 connected to the nut. By manipulation of the hand wheel 41 the operator is enabled to adjust the mechanism by hand when a comparatively is required to delicately position the mechanism. hen, however, the .adjustment is being efi ected by means of the main screw 14, the hand wheel 41 with no effect.

The cross head 33 carried by the upper be locked thereto by any suitable means such, for instance, as a set screw 45, but under ordinary circumstances it is allowed to screw. The cross head also includes a horizontal socket in bar 46 which may slide freely through the socket or be secured therein in fixed position by means of a set screw 47. The outer end of the guide bar may constitute a handle whereby the op erator may manipulate the grinding wheel 25, the shaft of which is extended through or journaled in a bearing 48 of said bar.

7 it is obvious that the guide bar etewill be free to rotate around the axis of the screw 32 and also slide longitudinally through the socket of the cross head so as to accommoarm 21 for poses.

As shown in Fig. 3, the set screw 47 upon being set to lock the guide bar to the socket piece, the bar constitutesa radius arm for dressing curved surfaces having a center of 1 general cutting or polishing pur- Gopies of this patent may he obtained for five cents each, by

a frame connected to bed beneath curvature coincident with the axis of the screw, as shown at V. When, however, as shown in Fig. 4, a straight surface is desired to be dressed as shown at W the set screw 47 may be loosened and any suitable guiding means G associated with the spindle of the wheel 25 may be provided to cause the axis of the shaft 22 to be caused to operate in a plane parallel with it carrying the cutting wheel in a straight line in any desired direction.

Having thus described my invention, I claim as new and desire to secure by Let ters Patent 1. The combination with a driving shaft, a grinding wheel, supporting means extending from the shaft to said wheel, and a power screw adapted to vertically adjust said supporting means, of a hand controlled guide member associated with said grinding wheel, and means extending from said main power screw to cause the adjustment of said guide member simultaneously with the adjustment of the grinding wheel.

2. The combination with a driving shaft, the driving shaft and adapted to be swung laterally around the axis thereof, a grinding wheel associated with the outer end of said frame, a power screw cooperating with said frame for lifting or lowering it, and a work supporting the wheel, of an auxiliary screw associated with the bed, a guide bar connected to said auxiliary screw and to the axis of the grinding wheel, and means to operate the main and auxiliary screws simultaneously for lifting and lowering the guide bar simultaneously with the aforesaid move ments of the frame.

3. In a device of the character set forth, the combination of a guide bar, main and auxiliary screws arranged parallel to each other, said guide bar being associated with the auxiliary screw, and means for rotating the two screws simultaneously in the same direction either by power or by hand, substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

OSCAR BAUER.

Witnesses Gno. L. Brenna, PHILIP D. RoLLI-IAUs.

addressing the Commissioner of Patents,

Washington, D. G.

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