US1384388A - Reversing-gearing - Google Patents

Description

T. J. HUGHES. REVEBSING GEARING. APPLICATION FILED OCT. 12. 1920.

1,384,388. Patented July 12, 1921.

I IMO I I 1 INVENTOR 7%0/2/05 Jf/Zqfiw W M ATTORNEY UNITED STATES THOMAS J. HUGHES, or SEATTLE, WASHINGTON.

REVERSING-GEARING.

Specification of Letters Patent. Patented Ji ly 12, 1921.

Application filed October 12, .1920.' Serial No.416,426. y a

To all whom it'mag concern:

Be it known that I, THOMAS J. HUGHES, a citizen of the United States, residing at Seattle, in the county of King and State of Washington, have invented certain new and useful Improvements in ReversingGearing, of which the following is a specification.

This invention relates to reversing gearing and has for its object to provide simple, compact, durable and eflicient mechanism whereby a driving member may be connected to a driven member for positively rotating the latter in the same or in opposite directions.

The invention consists in the novel construction, combination and arrangement of parts as hereinafter described and claimed.

An embodiment of my invention is illustrated in the accompanying drawings, wherein- Figure 1 is a longitudinal sectional view taken through 1-1 of Fig. 2, and Fig. 2 is an end elevational view with some of the parts broken away to disclose other parts in the rear thereof.

In said drawings, the numeral 5 designates a primary shaft which may be rotated by any suitable driving means, and 6 is a secondary shaft which is driven from said primary shaft through the instrumentality of gearing to be hereinafter described.

Said shafts are arranged parallel with each other and are shown as journaled in bearin boxes 5 and 6 provided in frame plates and 8 which are rigidly secured to a suitable support.

Keyed or otherwise secured to the secondary shaft 6 between said frame plates are two spur gears 9 and 10 of unequal diameters and herein shown as integral. with each other. Surrounding the smaller gear 10 is a series of spur pinions 12 respectively mounted on studs 13 which are secured in spaced relations to the frame plate 7 so that the pinions will be in mesh with. the gear 1.0.

The pinions .12, in turn, are surrounded by a ring gear 1 1 of an external diameter equal to the diameter of the gear 9. This ring gear is provided about its outer periphery with spur teeth 15 corresponding in number and sizes with those of the gear 9.

The ring gear 1 1 is interiorly provided with teeth 16 meshing with the teeth of the pinions 12, which latter serve to support the ring gear and maintain the same concentric to the axis of the secondary shaft 6. C011- 5 in th nected vfor axial movements, as by a spline l7, to the primaryshaft 5 is a sleeve 18 which is formed or provided with a gear element or pinion 19 which is selectively engageable with the teeth of gear 9 or with the; external teeth l5 lofsaid ring gear; As shown, of a bifurcated lever 20 fulcrumed at 21 to the frame plate 7 and is connected to the sleeve 18 by means of a collar 22 whichis rotatable in an annular groove provided in the sleeve.

Assuming that the pinion 19 is driven counter-clockwise and engages the ring gear I 14 as shown in the drawings it will be apparent that the power is transmitted through the system of gears-14, 12, 10--as denoted by direction arrows in Fig. 2 to drive the shaft 6 in the same rotary direction as the shaft 5.

When the pinion 19, however, is moved from its engagement with the ring gear into engagement with the gear 9 the shaft 6 is caused to be rotated in the opposite direction to the shaft 5.

the pinion 19 is shiftable by means.

PATENT OFFICE. if

It will of course be understood that the I number of pinions 12 acting between the ring gear 14 and the smaller gear 10 on the secondary shaft 6 may be varied and that if desired the duties of the primary and secondary shafts may be reversed, that is to say, th shaft 6 may be utilized as the driving member whereby motion is transmitted through the medium of the above described gears for thepurpose of rotating the shaft e same or opposite direction to that of the shaft 6. 1

The construction, operation and advantages of my improved reversing gearing will, it is thought, be understood from the foregoing description.

What I claim 1s,-

1. In a reversing-gear, the combination of a frame, a shaft extending therethrough, two gear-wheels of imequal diameters mounted upon said shaft, a gear-ring, a plurality of pinions rotatably connected tosaid frame and meshing with the smaller of said gear-wheels and the ring-gear to afford driving connections therebetween, a second shaft, a pinion rotatablymounted thereon, and means for moving the last named pinion to engage either the larger of said gear-wheels or the ring-gear.

2. In a reversing-gear, the combination of a frame, a sha t ex ending therethrough,

two gear-wheels of unequal diameters mounted upon said shaft, a gear-ring having a diameter equal to the larger of said gear-Wheels, a plurality of pinions rotatably connected to said frame and meshing vvith the smaller of said gear- Wheels and the ringgear to afford driving connections there between and also serving to supportthe ring-gear concentrically to the axis of said shaft, av second shaft, a pinion rotatably mounted thereon, and means for moving the last named pinion to engage either the larger of saidgear-Wheels or the ring-gear.

3 Ina reversing-gear, the combination of a frame,-a shaft journaled therein, tWo gear- Wheels of unequal diameters mounted on

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