US703761A

US703761A - Merry-go-round.

Info

Publication number: US703761A
Application number: US8973602A
Authority: US
Inventors: George D Bulmer
Original assignee: Individual
Current assignee: Individual
Priority date: 1902-01-14
Filing date: 1902-01-14
Publication date: 1902-07-01
Anticipated expiration: 1919-07-01

Description

Z 0 B .W u l. d an t n e .t a P D RN w M "0 Y R n G M M 3 0 7 0 N (Application filed Jan. 14, 1902.)

2 Sheets-Sheet I.

(No Modei.)

- No. 703,76l. Patented-July l,'|902. G. D. BULMER. MEBRY-GO-RUUND. (Application filed Jan. 14; 1902.

2 sheets s hem 2;

(No Madam hereinafter more fully described, and specif- ATENT rricn.

GEORGE D. BULMER, OF DUQUESNE, PENNSYLVANIA.

MERRY-GO-ROUND.

SPEOIFICATION forming part of Letters Application filed January 1 4:, 1 9 02'.

To all whom it may concern: Be it known that I, GEORGE D. BULMER, a citizen of the United States of America, residing at Duquesne, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Merry-Go-Rounds, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements in merry-go-1'ounds,'and has for its object the provision ofnove'l means whereby a device of this character may be easily operated; furthermore,to provide novel means that will admit the mechanism to be operated by means of a motor or by handpower by the occupants of the merry-go-round.

Another object of the herein-described invention is to provide a novel mechanism wherein the friction is reduced to a minimum, thereby assuring a free and easy rotation of the device; furthermore, to provide reversible seats at the ends of the cross-beams that may be turned in either direction and securely retained in the desired position.

The present invention further contemplates providing a mechanism of the above described character that when reduced to a miniature will form a novel mechanical toy that may be operated by automatons.

With the above and other objects in view the. invention finally consists in the novel combination and arrangement of parts to be ically pointed out in the claim.

In describing the invention in detail reference is had to the accompanying drawings, forming a part of this specification, and where-- in like numerals of reference indicate like parts throughout the several views, in which- Figure 1 is a perspective view of my improved merry-go-round. Fig. 2 is an enlarged vertical sectional view showinga modified form of power appliance. Fig. 3 is a top plan View of the central driving-gear, showing the cog-gears meshing therein. Fig. 4 is a detail View of one of the chairs or seats and showing a platform or running board at tached. Fig. 5 is a detail view of one of the bearings attached to the cross-beam shown in dotted lines and also illustrating a por Patent No. 703,761, dated July 1, 1902.

Serial No. 89,736. (No model.)

-illustrating the end of one of the cross-beams,

operating-rod, and seat,'showing an automaton arranged therein.

In the drawings'the reference-numeral 1 represents thestationary base or circular Braces 3 are secured to the interior of the base and extend to the center thereof, on the upper faces of these braces3 and at their intersection being rigidly secured arms 4:. These arms are integral with one another and carry a central boss 5, in which is arranged the central stationary shaft 6, having fixed thereto a circular cog-rack 7, and at the upper end of the shaft 6 is provided a canopy 8. The above parts are all stationary. Upon the circular track 2 are placed antifriction-wheels 9,which are mountednpon a circular frame 10. Upon these antifriction-wheels is mounted a turn-table 11, carrying a circular track 12 on its under face fitting in the central groove of the'antifrictionwheels. The turn-table 11 carries a series of cross-beams 14:, which are attached thereto by means of yokes 15. These cross-beams 1 1 frame, upon which is secured a circular track I extend radially from the center, where they r are secured in a cross-head 16, carrying a central bearing 17, having a ball race 18 formed in' itsupper face, in which are placed ball-bearings 19, engaging the under face of the stationary cog-rack 7. Upon the crossbeams let are secured'a'number of bearings 20, which are suitably spaced apart and are adapted to receive the operating-rods 21, having formed at their ends crank-handles 22. The said operating-rods are formed in two or more sections, being connected by knucklejoints 23, thereby relieving-the strain that would otherwise take place upon the rods if constructed of a single piece. 'The length of the rod would otherwise causeit to spring or bind; but to still further assurethe easy rotation ofthe rods I provide ball-bearings 24 in the bearings 20. At the ends of the operating-rods 21 are fixed beveled gears 25, meshing in the cog-rack 7. The chairs or seats 26 carry foot-rests 27, and to the under side of the seats are attached screw-threaded rods 28, which extend through the cross-beam near the end thereof, thumb-nuts 29 engaging the lower end of the screw-threaded portion of the rods and serving to securely retain the chairs or seats in the desired position and permitting the chairs to be easilyreversed when desired. In case the device is reduced to a miniature or toy the seats 33, secured to the cross-beams.

The operation of my improved device is as follows: The occupants of the chairs or seats by turning the crank-handles of the operating-rods Will operate the gears in the circular cog-rack,thereby rotating the turn-table upon the antifriction-wheels. The latter revolving will carry with it the circular frame in which they are mounted. The turn-table carrying the cross-beams travels at a rate of speed that is twice as great as that of the circularframe.

The many advantages obtained by the use of my improved mechanism will be readily apparent from the foregoing description and by referring to the accompanying drawings.

It will be noted that various changes may integrally-formed arms with a central boss carried by the arms, a track secured upon the upper of said frames, a frame carrying grooved wheels mounted on said track,aturn table comprising a circular frame carrying a track on its under side engaging in said grooves of the wheels, a stationary shaft secured in said central boss, a series of crossbeams carrying a cross-head at their one end mounted on said shaft, yokes straddling the cross-beams and secured to the frame of the turn-table, means for operating the turn-table, chairs carrying U-shaped brackets seated on the upper face of the cross-beams with screwthreaded rods carried by the chair and passing through the cross-beams, U -shaped brackets secured to the under face of the crossbeams and means on the lower ends of the rods for engagement with the lower bracket whereby the seat may be retained in its predetermined position, substantially as described.

In testimony whereof I affix my signature in the presence of two witnesses.

GEORGE D. BULMER. Witnesses:

JOHN NoLAND, E. E. POTTER.