US921424A - Mechanical movement. - Google Patents

Description

DB WITT 0, MAKEAN. MECHANICAL MOVEMENT.

APPLIOATION FILED JUNE 26,1908.

921 ,424, Patented May 11, 1909.

2 SHEETS-SHEET 1.

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1 J 5 F0 I 1' WITNESSES lNVENTO/i M J76 W42? 0. l Mean By ATTORNEYS DE WITT 0. MAKEAN.

MECHANICAL MOVEMENT. APPLICATION FILED JUNE 26,1908.

j I Y VV M WITNESSES A 7'7'ORNEYS the base or support D for the machine.

UNITED STATES, PATENT OFFICE.

DE WITT OTIS MAKEAN, OF BINGHAMTON, NEW YORK, ASSIGNOR OF TWENTY-FIFE ONE- HUNDREDTHS TO GEORGE W. FOWLER, OF BINGHAMTON, NEW YORK.

MECHANICAL MOVEMENT.

Specification of Letters Patent.

Patented May 11, 1909.

Application filed June 26, 1908. SeriaI No. 440,521.

new and improved mechanical movement,

more especially designed for transmitting motion to an upright shaft at a high speed and under a varying load, without causing undue vibration, friction, wear or noise, and without danger of breaking of the working parts. With this object in view, the mechanical movement is es ecially applicable to laundry machines linown as extractors, and employed for the speedy separation of the Water from the goods after washing the same, and the mechanical movement is also applicable for driving felt extractors and other machines, and centrifugal separators for cream, sugar, honey and like substances.

The invention consists of novel features and parts and combinations of the same, which will be more fully described hereinafter and then pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views. 1

Figure 1 is a central side elevation of the improvement as applied to an extractor, the section being on the line 11 of Fig. 2; Fig. 2 is a sectional plan view of the same on the line 22 of Fig. 1 ;Fig. 3'is a similar view of the same on the line 8-3 of Fig. 1; Fig. 4 is a diagrammatic view of the spherical gearing; and Fig. 5 is a sectional side elevation of a modified form of the improvement.

The upright shaft A carrying the vessel B of the extractor or other machine, is journaled in a step C provided at its upper end with a ball C fitting a socket D formedr 1on 16 lower end of the shaft -A preferabl rests on a ball-bearing E in the bottom of t 1e step C, and the latter is normally held in an upright osition by a ring F screwed on the step 0 lielow the ball 0, the ring F having lugs F engaging the upper ends of coiled springs G set on lugs D projecting from the support D. Now by the arrangement described t e step 0 is free to oscillate on the support D by the ball and socket connection C, D above described, but the step 0 is normally held in a vertical position by the action of the springs G on the ring F.

A driven wheel H is secured to the shaft A, as shown in Fig. 1, and this driven wheel H has its teeth arranged in spherical form, the center of the .wheel coinciding with the center of the ball- C of the step C. The

spherical gear wheel H is in mesh with a corresplonding spherical gear wheel I secured on .a s aft J journaled' on the support D and carrying a bevel gear wheel K in mesh with a like gear wheel K secured on'the driving shaft L, connected with suitable machinery for driving the shaft L. v The teeth of the driven gear wheel H and the driving gear wheel I are preferably shaped, as disclosed in Figs. 1, 2 and 4, that is, each tooth of the gear wheel H instead of being the same in thickness throughout its width, as in ordinary spur gear wheels, is thicker at the middle than at the ends, and while the height of a tooth is the same throughout its width, as in ordinary spur gear Wheels, the root and tip lines are not parallel with the shaft but are curved, the center of the curve being at the intersection of the horizontal and vertical center lines of the wheel H. In the driving Wheel I each tooth is higher at the center than at the ends, the root line being con cave and the tip line convex, and each tooth is thicker at the middle than at the ends, th same as disclosed.

In using the machine, the vessel B is loaded in the usual manner, but as it is next to impossible to equally load the vessel B at all points, it is evident that when the shaft L is started up and-the rotary motion is transmitted by the gearing described to the and the shaft A and step C continue out of I end of which is formed into a socket, the su the vertical line, then the action is still easy and noiseless, owing to the spherical gearing described, at Whatever angle the revolving shaft A may assume, as the teeth of the Wheels H and I will always be in proper mesh, as illustrated in the diagrammatic view shown in Fi 4:, and consequently the machine Will wor with a minimum vibration, friction and consequent wear.

Instead of using a spherical gearing, as above described and shown in Figs. 1 and 2, the shaft A may be provided with a spherical pulley H, as shown in Fig. 5, and over which passes a belt I connected with other machinery for rotating the pulley H. It is understood that the center of the spherical ulley H coincides with the center of the ball and socket joint, and consequently the belt I remains in engagement with the spherical pulley H in case the shaft A and its step 0 assume an inclined position relative to the vertical. By applying .the power to drive the shaft A in a horizontal plane passing through the center of the ball and socket joint and the drive wheel H or pulley H, it is evident that the inclination of the shaft A and the step C does not affect the proper transmission of power, and hence the shaft and the vessel B can be driven at a very high rate of speed without danger of injury to the working parts.

Although I have shown the mechanical movement applied to an extractor, it is evident that I do not limit myself to this particular application, as the mechanical movement may be used on other machines.

The mechanical movement shown and described is very simple and durable in construction, is composed of comparatively few parts, not liable to get out of order.

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

1. A mechanical movement, com rising a support having a central opening t e upper port being provided with lugs within t 1e said opening, a step having a spherical upper end fitting in said socket and provided near its lower end with lugs, springs interposed between the lugs of the step and support, a shaft mounted in the step, and a spherical driven wheel on the shaft and having its center coinciding with the center of the spherical end of the step.

2. A mechanical movement, comprising a support having a central opening, the upper end of which is formed into a socket, the support being provided with lugs within the opening thereof, a step having a spherical upper end fitting in the socket and provided near its lower end with a ring screwed thereon and having lateral lugs, springs interposed between the lugs of the support and step, a

shaft mounted in the step, and a spherical driven wheel on the shaft and having 1ts center coinciding with the center of the spherical end of the step.

3. A mechanical movement comprising a base having a central opening terminating at itsupper end in a socket, the base being provided with lugs within the said. opening, a step having a spherical upper end fitting in the socket and provided near its lower end with lateral lugs, springs interposed between the lugs of the base and step, a shaft mounted in the step, a spherical gear wheel on the shaft, the center of the wheel coinciding with the center of the spherical end of the step, a vertical shaft j ournaled in the base, a spherical gear wheel on the vertical shaft and meshing with the first named spherical gear wheel, and means for operating the vertical shaft.

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

DE WITT OTIS MAKEAN.

Witnesses:

ALLEN Gnrees, GEORGE WALKER STRATTON.

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