Pin puller for articulated connector pins

Details Pin puller for articulated connector pins Pin puller for articulated connector pins

1993-12-08

1995-02-21

Watson, Robert C.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

B23P 1904

Patent

active

053904036

ABSTRACT:
A pin puller for extracting the main connector pin from an articulated connection such as in articulated railroad cars has concentric inner and outer sleeves relatively translatable by a hydraulic ram. The inner sleeve has legs which rest on top of the female articulated connector, straddling the main connector pin. The legs define a slot and support a platform. The outer sleeve has a cylindrical skirt which houses a boss, and is closed on top by a cover. The skirt and boss carry a first pin for connecting a yoke. The yoke has a second pin which connects to a loop in the top of the main connector pin. The ram rests on the platform and pushes the outer sleeve cover upwardly, causing the yoke and main connector pin to move upwardly also. The yoke can be interchanged with another yoke to accommodate other applications.

REFERENCES:
patent: 4558502 (1985-12-01), Gossman et al.
patent: 4670958 (1987-06-01), Hoffgen
patent: 4714238 (1987-12-01), Spradley et al.
patent: 4870739 (1989-10-01), Richards
patent: 4979279 (1990-12-01), Garvey
patent: 5050285 (1991-09-01), Wrage
patent: 5129133 (1992-07-01), Reesor

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