US668958A

US668958A - Mechanical movement.

Info

Publication number: US668958A
Application number: US4551100A
Authority: US
Inventors: John E Hallett
Original assignee: Individual
Current assignee: Individual
Priority date: 1900-04-13
Filing date: 1900-04-13
Publication date: 1901-02-26
Anticipated expiration: 1918-02-26

Description

No. 668,958. Patsntsd Fb. 26,191".

- J. E; HALETT.

MECHANICAL MOVEMENT. Application Hled A x- 1B 19 Renewe'd Jan. 31, 1901 (No Model.)

2 Sheats$heet l..

ttozmg y N0. 668,958. Patented Feb. 26, |90l. J. E. HALLETT..

MECHANICAL MOVEMENT.

(Application Bled Apr. 13, 1900. Renewed Jan. 31, 1901.;

(No Model.) 2 SheetsfSheet 2.

flttozwu rrhh JOHN E. HALLETT, OF SAO CITY, IOWA.

MECHANICAL MOVEMENT.

SPECIFICATION forming part of Letters Patent No. 668,958, dated February 26, 1901. Application filed April 13,1900. Renewed January 31, 190].. Serial No. 45,511. (No model.)

To all whom, it may concern."

Beit known that I, JOHN E. HALLETT, a citizen of the United States, residing at Sac City, in the county of Sac and State of Iowa, have invented certain new and useful Improvements in Mechanical Movements, of which the following is a specification.

This invention relates to a new and useful mechanical movement especially adapted for use upon velocipedes and other vehicles; and its primary object is to provide a device of simple construction whereby power may be transmitted to a shaft continuously and positively.

To these ends the invention consists in providing a lever pivotally secured to a link which is suspended from a suitable support, and said leveris provided with a toothed slot, within which is mounted a gear adapted to mesh with the teeth upon the sides and ends of the slot successively and automatically.

The invention also consists in providing means of novel construction whereby said lever is swung backward and forward and held in such position until reaching the limit of the up and down strokes, respectively.

The invention also consists in the further novel construction and combination of parts hereinafter more fully described and claimed, and illustrated in the accompanying drawings, showing the preferred form of my invention, and in which- Figure 1 is a side elevation of the device. Fig. 2 is a plan view thereof. Fig. 3 is an end view. Fig. 4 is a detail view of the le ver. Fig. 5 is asimilar view of the gear, and Fig. 6 is a side elevation of the device applied to a bicycle.

Referring to said figures by numerals of reference, 1 is a lever of Asuitable construction having a stud 2 projecting therefrom at a point between its ends and pivotally mounted within the lower end of a link 3, which is pivoted to and suspended from a suitable support 4. One end of the lever 1 is enlarged, as shown at and is provided with a slot 6, having teeth 7 projecting from its sides and ends, said teeth meshing with teeth formed upon the gear S, which is secured to the shaft 9 of a wheel 10 o'r other suitable driving mechanism. The gear is provided at one side with an annular groove 11, which is adapted to receive the walls of a slot 12,

formed within a plate 12,and which is slightly smaller than, but concentric to,the slot 6, said plate being secured to the enlarged portion 5 of the lever 1. to a point adjacent to the inner wall of the slot 6 is a cam 13, upon which is adapted to bear a piu 14, which projects from the inner face of the lever 1.

In operation it will be seen that when the lever 1 is pressed downward the teeth upon one of the walls of the slot G, which engage with the gear Within said slot, will cause said gear to revolve. When the gear reaches the end wall of the slot, it will engage with the teeth thereof and force the lever backward or forward, according to the direction in which the shaft is revolving, thereby drawing the pin 14 over the end of the cam 13, which will guide the same in its upward and downward movement and hold the teeth of the slot into engagement with the gear. By means of the groove 11 and the plate fitting therein lateral movement of the lever is prevented and the same is held at all times iu engagement with the gear. It will be understood that when the said lever is thrown backward and forward by means of the cam 13 it will swing upon the link as a pivot.

In the foregoing description I have shown the preferred form of my invention; butIdo not limit myself thereto, as I am aware that modifications may be made without departing from the spirit or sacrificing the advantages thereof, and I therefore reserve the right to make such changes as fairly fall within the scope of my invention.

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

The combination withasupport,of acam secured thereto, a link pivoted to the support, a lever mounted upon the link and having a toothed slot therein, a shaft within the slot, a gear thereon meshing with the teeth of the slot, said gear having an annular groove, and aslotted plate secu red to the lever and mounted within said groove.

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

J OI-IN E. HALLET'I.

Witnesses:

E. N. BAILY, J. Y. CAMPFIELD.

Projecting from the support 4Q IOO