Handbrake mechanism for railway cars

Machine element or mechanism – Control lever and linkage systems – Hand operated

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

192 16, 192 95, 188 33, G05G 108

Patent

active

051272830

ABSTRACT:
A railway car brake mechanism is comprised of a hand wheel on a shaft and a housing with a rotatable gear wheel and square chain winding disposed within. A ratchet wheel rotatable with the hand wheel shaft and a freely rotatable pinion which engages the gear wheel is also provided. The rotatable pinion has a flange with a disengageable driving connection with the gear wheel and a disengageable connection between flange and ratchet wheel. The main gear wheel and chain winding drum comprise a main gear wheel assembly. The assembly is attached by a chain end link through an interconnection of the main gear wheel and outwardly extending section of the chain winding drum. To prevent kinking or slippage of the chain, a spiral groove is formed in the square chain drum. The groove enables the chain to be wound within the drum with alternate links seated on a concave surface and intermediate links, which rest on the outer surface of the drum, to be at right angles to the aforementioned alternate links. Further, a trip cam is utilized to rotate a trip bar. The bar disengages the driving connection and permits the pinion to freely rotate the main gear wheel to release the brake. Specifically, the trip cam has a shaft with both a cam arm and safety arm. With respect to the cam arm and shaft of the trip cam, the safety arm is located at a substantially 90 degree angle.

REFERENCES:
patent: Re25001 (1959-09-01), Bretz, Jr.
patent: 3040597 (1962-06-01), Bretz, Jr.
patent: 3258991 (1966-07-01), Bezlaj
patent: 3602063 (1971-08-01), Koehler
patent: 3714842 (1973-02-01), Koehler
patent: 3933225 (1976-01-01), Bretz, Jr.
patent: 3988944 (1976-11-01), Klasing
patent: 4282771 (1981-08-01), Grube
patent: 4291793 (1981-09-01), Klasing
patent: 4301693 (1981-11-01), Stanley
patent: 4368648 (1983-01-01), Housman et al.
patent: 4714142 (1987-12-01), Shepherd

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Handbrake mechanism for railway cars does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Handbrake mechanism for railway cars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Handbrake mechanism for railway cars will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1822916

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.