US1070228A

US1070228A - Multispeed-transmission gearing.

Info

Publication number: US1070228A
Application number: US73297512A
Authority: US
Inventors: Alexander Burkhardt
Original assignee: Individual
Current assignee: Individual
Priority date: 1912-11-22
Filing date: 1912-11-22
Publication date: 1913-08-12
Anticipated expiration: 1930-08-12

Description

PATENT OFFICE.

ALEXANDER BURKHARDT, OF INDIANAPOLIS, INDIANA.

MULTISPEED-TRANSMISSION GEARING.

Specification of Letters Patent.

Patented Aug. 12,1913.

Application filed November 22. 1912. 'Serial N 0. 732,975.

To all whom it may concern:

Be it known that I, ALEXANDER BURK- IIARDT, a citizen of the United States, resid-' ing at Indianapolis, in the county of Marion and State of Indiana, have invented a new and useful Multispeed iransmission Gearing, of which the following is a specification. reference being had to the accompanying drawings and to the letters and figures of reference marked thereon.

This invention relates to a train of gearing and supports therefor that may be used in various situations for transmission of power, the invention having reference more particularly to gearing whereby power may be transmitted at various speeds.

The object of the invention is to provide improved gearing that shall be so constructed as to be adapted to. be employed either for-increasing or decreasing speed and which may be so constructed as to be simple and powerful.

A further object is to provide improved gearing that may be employed either for converting rotary motion into reciprocatory motion or reciprocatory motion into rotary motion. i I I \Vith the above mentioned and other objects in view, the invention consists in the novel parts and in the arrangement thereof in gearing of the above mentioned character, andin the specific combinations of parts as hereinafter particularly described and further defined in the accompanying claims.

Referring to the drawings. Figure 1 is a side elevation of the improved gearing; Fig 2, a front elevation thereof; Fig. 3, a vertical section 'on the line A A in Fig. 2, omitting portions of Fig. 1; Fig. 4, a front elevation of a retaining ring preferably employed; Fig. 5, a fragmentary rear elevation; Fig. (3, a front elevation of the frame of the gearing; and Fig. 7, a fragmentary rear elevation of the main wheel partially broken away. i I

Like reference characters throughout the drawings, indicate like elements or features of construction herein referred to. i

The gearing is provided with a suitable supporting frame which may be variously constructed so as to be adapted to be supported in various positions or with respect to various machinery, and for the purpose of illustration comprises a base 1 adapted to be bolted securely in a suitable position, as upon a floor, and in the present case supports a suitable frame 2 in upright position. The frame has a journal box 3 having a cap 4, another journal box 5 having a cap (3, and a box '7, the boxes being in one and the same plane, the plane preferably being vertical as illustrated but obviously may be horizontal if preferred to so arrange the boxes. The frame comprises alsoa ringlike portion 8 extending concentrically about the box 5 and having an external bearing portion 9 for rotatably supporting the main wheel and having also a flange 10 for guiding the wheel, said ring-like portion having bolt holes 11 therein. An annular main wheel 12 of novel construction is provided which has a flange 13 on one side thereof that is bored out to form a suitable bearing portion 14 that is rotatably mounted on the bearing portion 9 and retained thereon by means of a retaining ring 15 secured by means of bolts 16 inserted in bolt holes 17 formed in the ring, the ring being placed against the front of the ring-like portion 8, and in some case has recesses 18 and 19 to clear portions of the boxes 7 and 3 respectively. The flange 13 has an external crowning pulley face 20 adapted to drive a belt. gear teeth 21 thereon in order to drive or be driven by another gear wheel, and the periphery preferably has a flange 22 adjacent to the gear teeth, and a crowning pulley face 23 beyond the flange for driving a belt. The wheel is provided also with internal gear teeth 24 whereby the wheel may drive or be driven by another wheel. The main wheel 12, as will be seen, is of annular form and on its front is provided with a suitable cross bar or plate 25 preferably having a counter-weight 26, and preferably is detachably secured to the wheel, and has a slot 27 therein in which a crank pin 28 is adjustably secured so as to be placed'at different distances from the axis of rotation of the wheel, in order that the wheel may be driven by a pitman, or may operate a pitman of a pump, for instance. and thus convert rotary motion intoreciprocatory motion.

A shaft 29 is rotatabiy mounted in the box 5 and a pinion 30 is secured fixedly to the forward end portion thereof and is The periphery of the wheel 12 has end thereof,

belt if desired. A shaft 34 is rotatably supported in the box 3 and a pinion 35 is secured thereto in contact with the forward end of the box and in mesh withthe pinion 30 and also with the gear teeth 24, a collar 36 being secured to the shaft at the opposite end of the box.

Preferably a suitable shaft support 37 is employed which rotatably supports the rearward portion of the shaft 34, a relatively small pulley 38 being preferably secured to the shaft for driving a belt if desired. A stub shaft39 is supported inthe bearing 7 and preferably fixed therein and it rotatably supports a pinion 40 at the forward the. pinion being in mesh with the pinion 30 and also with the gear teeth 24. It will be seen that whethenthe shaft 29 drives the main wheel 12, or the wheel drives the shaft, the strains are equalized on opposite sides of the shaft. It is obvious, however, that in small sizes of the gearing the transmission of motion may be effected between the shaft 29 and the main.-

wheel 12 by either

pinion

35 or 40.

In practical use, the initial motion may be given to the shaft 29 and transmitted through the main wheel 12 from two pulleys or one toothed gear wheel as rotary motion or by means of the crank pin 28 to impart reciprocating motion. Or, in some cases a reciprocating engine may impart motion by means of the crank pin 28 to the main wheel 12 and thence to the shafts 29 and 34: which may drive or transmit the motion by means of wheels thereon, and motion may be transmitted-to machinery also by the main wheel 12 as will be obvious.

.Having thus described the invention, what is claimed as new is 1. Gearing including a rotatable annular main wheel having a crank-pin and also internal gear teeth and external gear teeth, a rotatable shaft, and gearing connecting the shaft with the internal gear teeth of the main wheel.

2. Gearing including a rotatable annular portions of different diameter on its periphery.

3. Gearing including a rotatable annulan main wheel having internal gear teeth and also two external pulley faces differing in diameter, a rotatable shaft, and gearing con necting ,the shaft with the internal gear teeth of the main wheel.

- ported by 1. Gearing including a frame having an annular bearing, an annular main wheel having a flange rotatably mounted on the bearing, the wheel having also internal gear teeth, a shaft rotatably mounted in the frame, and a pinion fixed to the shaft in mesh with the internal gear teeth.

5. Gearing including a frame having an annular bearing, an annular main wheel having a flange rotatably. mounted on the bearing, the fiange having .an external pulley face, the wheel having internal gear teeth, and a pinion rotatably supported by the frame in mesh with the internal gear teeth. Y

6. Gearing including a'frame having two journal boxes and also an annular bearing extending about the two boxes, an annular main wheel rotatably lnounted on the an nular bearing and having internal gear teeth, two shafts rotatably mounted in the two journal boxes, and two pinions secured respectively tothe two shafts and meshing each with the other, one of the pinions being in mesh with the internal gear teeth.

.7. Gearing including a frame having a journal box and also an annular bearing extending concentrically about the box, an annular main wheel rotatably mounted on the bearing and having internal gear teeth and also a crank-pin, a shaft rotatably mounted in the journal box, a pinion fixedly secured tothe shaft, and a pinion rotatably supthe frame in mesh with the internal gear teeth and the first mentioned pinion.

8. In transmission gearing, the combination with a frame having three boxes in one and the same plane, of an annular main wheel rotatably mounted on the frame and having internal gear teeth, a shaft rotatably mounted in the middle one of the boxes and having a pinion thereon, a shaft rotatably mounted in another one of the boxes and having a pinion thereon in mesh withthe internal ear teeth and also with the first mentione pinion, a stub shaft fixed in the remaining one of the boxes, and a pinion rotatable on the stub shaft in mesh with the internal gear teeth and also with the first mentione pinion.

9. In transmission gearing, the combination of a frame having two journal boxes and a bearing box in one and the same lane, the frame having also an annular caring extending about all the boxes, an annular main wheel having a flange rotatably mounted on the annular bearing and havm also internal gear teeth, a stub shaft fixed 111 the bearing box, two shafts rotatably mounted in the two journal boxes "re spectively, two supports rotatably supporting portions of the two rotatable shafts respectively, two transmission wheels, secured to the two rotatable shafts respectively, a pinion rotatably mounted on the stub shaft in mesh with the internal gear teeth, and two inions fixedly secured to the two rotatable's afts in mesh each with the other, one-0f the two pinions being in mesh with the internal gear teeth and the other in mesh with the first mentioned pinion.

In testimony whereof, I afiix my signature in presenee of two witnesses.

ALEXANDER BURKHARDT.

Witnesses:

E.- T. SILvIUs, P. A. HAVELICK.