US1050123A - Rotary device. - Google Patents

Description

M. GOLUBOVITZ.

ROTARY DEVICE.

APPLICATION FILED JULY 12,1912. 1,050, 1 23, Patented Jan. 14,1913.

2 SVHEETSSHEET 1.

H WHIHHHIHH "NH 7 IN VEN TOR WITNESSES BY I maeh A TTORNE Y M. GOLUBOVITZ.

ROTARY DEVICE.

APPLICATION FILED JULY 12,1912.

1,050,123, Patented Ja1114,1913.

2 SHEETS-SHEET 2.

A TTORNE Y COLUMBIA PLANOGRAPH COHWASH'INGTON. I)' C- l UNITED STATES PATENT FFIQ. i

MILLARD GOLUIBOVITZ, OF NEAR LEBANON, PENNSYLVANIA.

ROTARY DEVICE.

To (17K zv/zom e't may concern:

Be it known that I, MILLARD GOLUBOVITZ, a citizen of Servia, residing near Lebanon, in the county of Lebanon and State of Penn sylvania, have invented certain new and useful Improvements in Rotary Devices, of which the following is a specification.

My invention relates to rotary devices or machines which are adapted to transmit rotary motion from a driving shaft to an arbor by means of a train of gears in such a manner as to produce a very rapid rotation of the arbor in comparison with the speed of the driving shaft; and the invention relates more particularly to devices of this kind which may be utilized for the rotation of an emery wheel, an egg heater, or other similar tools or appliances, and which admit of the adjustment of such appliances through a great variety of vertical and horizontal positions.

One of the objects of my invention is to supply a device of this kind which will be comparatively light in weight and hence easily portable, but will nevertheless be operable without a clamping or other attachment to a bench or lateral support.

A further object of the invention is to provide means whereby the rotary arbor may be readily and quickly raised and lowcred, turned in any desired horizontal position and swung to the right or left in such position, as well as bodily revolved through the circumference of a circle having the driving shaft as a center, and whereby the arbor may be rotated and simultaneously swung from right to left.

A further object of the invention is to provide a handle to enable the operator to grasp and firmly hold the device with one hand, while actuating the rotary mechanism wit-h the other.

A further object of the invention is to provide a base or support for the main portion of the device which will firmly rest upon the floor or other horizontal surface and grip the same in such a manner as to prevent sliding.

lVith the above and other objects in view, the invention consists of the novel construction and the arrangement of parts hereinafter fully described, illustrated and claimed.

In the accompanying drawings Figure l is a front elevation of a rotary machine constructed in accordance with my invention. Fig. 2 is a side elevation thereof Specification of Letters Patent.

Application filed July 12, 1912.

PatentedJanlc, 1913.

Serial No. 709,020.

showing an emery wheel mounted for rotation upon the arbor. Fig. 3 is a front view of the gear casing showing a portion of the front wall broken away to give a view of the interior parts. Fig. 4 is a transverse sectional view taken on line 4 4 of Fig. 3 with the crank handle and the momentum crosspiece removed; and Fig. 5 is a fragmentary View of a portion of the driving crank.

Like characters of reference indicate like parts throughout the several views.

Referring to the drawings, 6 indicates a circular base upon which is centrally erected a hollow or tubular up-right 8 adapted to receive for telescopic and rotary movement therein a standard 14. On the upper part of the standard is pivotally mounted an annular split band 20 embracing and carrying the main portion of the mechanism, and the upper portion 9 of the upright 8 is eXteriorly reduced in diameter and provided with a longitudinal slot 10 to render the same resillent and capable of a slight compression against the standard, as well as to provide a shouldered rest for the ring band clamp 11, which latter is provided with ears 12 suitably perforated and threaded for the admission and engagement of the thumb screw 13, whereby the clamp may be drawn up and tightened to fasten the standard 14 in the desired posit-ion. From the upper end of the standard 14 projects a perforated lug 15; and from the lower part of the annular band 20 depends a corresponding lug 21 with a coinciding perforation, the latter being threaded to engage a bolt 19 passing through lug 15. Said bolt 19 has an enlarged head 16 adapted to frictionally contact the outer face of the lug 15 and it carries a slide bar handle or other suitable leverage device for forcibly clamping the band 20 to the standard when it is desired to secure the former in an angu;

lar position.

The casing 27 is cylindrical in form and consists essentially of two circular disks 27 and 27 which constitute the side walls thereof and are connected by means of the hub 30. Annular flanges or collars 81 on the opposite sides of the hub form seats against which the disks rest, and the latter are re tained in position by means of the nuts 32 threading on the reduced opposite ends of the hub. A cylindrical plate 28 incloses 1 the casing peripherally and forms a bearing for the annular band 20 whereby the casing is embraced and held.

The hub has a central bore in which is journaled the driving shaft 29 on which is rigidly mounted outside of the casing the gear wheel 51 and adjacent thereto the crank having the revoluble handle 55 at one end and a weight 56 on an extension of the other end, said weight being adapted to cminter-balance the handle and to act in conjunction with additional weights hereinafter referred to for producing momentum and uniform motion in the operation of the device. A nut 5 L threading on the end of the shaft retains the crank in position.

Secured to the driving shaft on the opposite side of the casing by means of a nut 67 is a cross-piece 65 preferably placed at rightangles to the crank 53, and on the opposite ends thereof are mounted weights 66 of substantially the same form as the weight 56, which assist the latter in producing momentum and uniform. movement.

A train of gears commencing with gear 51 serves to communicate motion from the driving shaft to the arbor 39 located near the periphery of the casing. Said gears, with the exception of the pinion 52 mounted on the spindle 3% and meshing directly with the gear 51, are contained within the cas ing; and the same are so proportioned as to give a very rapid rotation to the arbor 39 in comparison to the speed of the driving shaft. This increment is obtained by placing a comparatively large gear 47 on the shaft 34, which meshes with a pinion 48 on spindle which carries the large gear l9 meshing with a pinion on the spindle 36 forming the interior extension of the arbor.

A collar 37 placed on the spindle 36 ad jacent the inner face of the side wall 2? and preferably secured by a pin 38, is employed to retain the arbor in position transversely. The outer end of the arbor 39 is reduced in diameter and shouldered for the reception of an emery wheel such as l0 (Fig. or for any other tool or appliance to which it is desired to impart rapid rotation, and said wheel or appliance is preferably secured to the arbor by a nut 42 engaging the threaded end il thereof.

(in the peripheral wall 28 of the casing at spaced intervals, are provided a series of radially extending lugs or projections 4-6 shown in the drawings as the heads of screws threaded into the wall, said lugs being arranged on either side of the band 20 to serve as guides and provide a seat therefor, and the same are so located as to keep the band substantially midway between the side walls of the casing. The band 20 is preferably made of spring steel, and the same consists of two semi-circular branches em tending oppositely from the lug 21 and approaching each other at a point diametrically opposite said lug, where their terminal portions are turned at right angles to a tangent of the band and are shaped into ears having perforations to receive the thumb screw 23, one of said ears being threaded to permit the opposite branches of the band being drawn together. A handle 24, having a flattened perforated extension 25 inserted between the cars 22 which also receives the screw 23, is adapted to be pivotally secured to the band. The object of this handle is to provide a means for the operator to grasp and firmly hold the device with one hand while actuating the driving mechanism with the other, and it will be understood that ac cording to the construction here described, the handle 24L may be swiveled in a plane transversely to the band 20, and that it may thus be turned and secured in any position most convenient to the operator in view of the particular position of the driving mechanism. The band 20 acts as a bearing for the casing, which may be rotated therein so as to bring the arbor 29 to the point where the tool or appliance mounted thereon or connected thereto may be most effectively applied; and to permit of this rotation as well as to allow sufficient frictional surface to allow the band to grip and securely hold the casing when the screw 23 is drawn up, a series of three anti-friction rollers 43, spaced at regular intervals about the circuinference of the casing are provided. These rollers are journaled in the side walls of the casing and are each provided with a central cylindrical enlargement 4L5 extending through suitable openings 4% (see Fig. 4) in the peripheral wall of the casing, which said enlargements contact the inner face of the band 20 and permit the casing to be freely turned within the band when the tension upon the set screw 23 is removed.

In order to grasp the casing for rotation within the band, I provide a latch. pin 58 near the end of the crank 53 adjacent the handle 55, having a milled head 57. This pin passes through a suitable opening 60 in the crank and has cross-pieces or stops 59 and 63, one on either side of the crank, as is more clearly shown in Fig. 2. An extensible spiral spring surrounds the inner portion of the pin and bears against the inner face of the crank at one end and against the stop 63 at the other. In the outer face of the crank, adjacent the opening 60 and extending transversely on either side thereof, is a transverse socket for the admission of the stop 59, and in the wall of the casing at an equal radial distance from the center of the drive shaft as the latch pin is an opening or socket 64 for the reception of the inner end of the latch.

To insure a firm hold upon the floor or other horizontal surface upon which the machine is placed when operated, I attach to the bottom of the base a number of claws or spurs 7 with downwardly extending points which sink into the supporting surface a limited distance and obviate all tendency toward slipping or sliding due to force exerted upon the machine.

The operation of the device will be readily understood. By means of the handle 24, the operator first pulls up the casing to the desired height and secures the same by tightening the clamp 11 with the thumb screw 13. Ihe band 20 and the casing contained therein are then swung to the desired transverse position and secured in place by tightening the bolt 16. The range of adjustnent of the arbor and the tool which it carries is greatly increased and the tool rendered adjustable to a greater variety of positions by loosening the thumb screw 2", rotating the casing within the band, and again tightening the screw when the desired posit-ion has been attained. To rotate the casing the crank 53 is turned until the latch pin 58 coincides with the socket 64 on the adjacent face of the casing. The latch pin is then turned until the stop 59 coincides with the slot 61, when, owing to the force of the spring 62, the stop will be drawn into the slot and the end of the latch 'pin into the socket 64:, whereby the casing will be attached at two points to the crank and may be turned within the band by means of the handle 55. When it is desired to again disconnect the crank from the casing, the latch pin is withdrawn from the socket and given a quarter turn, when the crank will be freed from the casing and its independent move ment restored. Both in the latter operation and in the actuation of the driving mechanism, the handle 24: may be turned in any position most convenient to the operator.

I have found that by using weights such as 56 and 66 upon the end of the crank opposite the handle and on the ends of the cross bar 65, a considerable momentum and a uniform motion can be imparted to the machine, which compensates for variations in the retarding forces exerted upon the arbor through the tool.

It will be clear that it is possible, by loosening the bolt 19, to rotate an emery wheel mounted on the arbor while at the same time, by swiveling the casing, giving the wheel a bodily movement through the arc of the circle having its center at the bolt and this I find to be of great advantage in sharpening the spurs of horses shoes which can be done without removing the shoe from the horse.

It is obvious that by attaching a flexible shaft to the arbor 39, rotary movement may be communicated to an egg heater or other similar appliance held at a distance from a machine.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

1. In a device of the class described, the combination of a suitable support, a split hand ring pivotally mounted thereon, a cylindrical casing journaled in said ring and adapted to be rotated therein and securely clamped thereby, rotary mechanism arranged in said casing, and means pivotally and adjustahly connected to said ring for holding the device with one hand while actuating the rotary mechanism with the other.

2. In a device of the class described, the combination of a vertically adjustable and horizontally revoluble support, an annular band pivotally and adjustably mounted thereon, said band comprising two semicircular branches meeting at a point diametrically opposite the pivot, a handle pivotally interposed between said branches and means for drawing the branches together for fastening the handle therebetween, a cylindrical casing embraced by said band and bodily revoluble therein and adjustable thereby, rotary mechanism arranged in said casing, a handle for actuating the said rotary mechanism and a laterally extending receiving arbor mounted near the periphery of said casing.

3. In a device of the class described, the combination of a suitable support, an annular hand pivotally mounted thereon, a cylindrical casing j ournaled in said band and adapted to be bodily rotated therein and clamped thereby, a driving shaft centrally journaled in said casing and a crank for revolving said shaft, a laterally extending tool bearing arbor mounted in said casing near the periphery thereof, and a train of gears adapted to communicate rotary motion from said driving shaft to said arbor.

4. In a device of the class described, the combination of a suitable support, an annular band pivotally mounted thereon, a cylindrical casing journaled in said band and adapted to be bodily rotated therein and clamped thereby, a series of anti-friction rollers j ournaled in said casing adjacent the periphery thereof and extending through suitable openings therein to contact said band, a driving shaft centrally journaled in said casing and a crank for revolving said shaft, a laterally extending tool bearing arbor mounted in said casing near the periphery thereof, and a train of gears adapted to communicate rotary motion from said driving shaft to said arbor.

5. In a device of the class described, the combination of a suitable support, an annular band pivotally mounted thereon, a cylindrical casing journaled in said band, a driving shaft centrally journaled in said casing and projecting from either side thereof, a crank having a revoluble handle attached to one end of said driving shaft and a weight mounted on an extension of the crank opposite said handle, a cross bar ex tending at right angles to said crank secured to the other end of said driving shaft with similar Weights mounted on the opposite ends thereof, a laterally extending tool bearing arbor journaled in said casing ad jacent the periphery thereof, and a train of gears adapted to con'nnunicate rotary motion from said driving shaft to said arbor.

6. In a device of the class described, the combination of a suitable support, an annular band pivotally mounted thereon, a cylindrical casing journaled in said band and adapted to be bodily revolved therein, a driving shaft centrally mounted in said casing, an arbor mounted near the periphery thereof, and suitable gearing for communicating rotary motion from said driving shaft to said arbor, a crank secured to one end of said driving shaft, and locking means ar- Copies of this patent may be obtained for ranged on said crank for detachably loclc ing the same to the casing to prevent rotary motion of the crank relative to the casing and. to permit the rotation of the casing Within the band by means of the crank.

7. In a device of the class described, a circular supporting base adapted to rest upon a horizontal surface, and a series of spurs having downwardly extending points adapted to sink a limited distance into such surface and projecting at intervals from the bottom of the base, in combination with a pivotally mounted holding handle arranged at a point above the base.

In testimony whereof I have hereunto affixed my signature in the presence of two Witnesses.

MILLARD GOLUBOVITZ. Witnesses DAVID BRIGHTBILL, CATHARINE ELY HARDY.

five cents each, by addressing the Commissioner of Fatents,

"Washington, D. C.

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