Railway draft appliances – Cushioned – Drawbars
Patent
1996-02-14
1997-02-04
Morano, S. Joseph
Railway draft appliances
Cushioned
Drawbars
213 50, 213 75R, 29446, B61G 920
Patent
active
055989373
ABSTRACT:
A slackless drawbar assembly joining railcars includes a drawbar, each end of the drawbar being joined to a yoke surrounding a cushioning unit and a follower block confined between forward and rear stops in a conventional sill pocket. The cushioning unit includes a front plate, an elongate spacer block and a compressed stack of elastomer pads sandwiched between the plate and block. Tightening wedges and shims are not used. The compressed pad stock holds the cushioning unit between the stops with a preload of about 50,000 pounds to prevent binding between the drawbar and the follower plate from causing derailments. The preload also holds the cushioning unit tight in the pocket.
REFERENCES:
patent: Re33985 (1992-07-01), Glover
patent: 2318472 (1943-05-01), Dwyer, Jr. et al.
patent: 2576214 (1951-11-01), Danielson
patent: 2640602 (1953-06-01), Willison et al.
patent: 2640603 (1953-06-01), Willison et al.
patent: 2686602 (1954-08-01), Willison
patent: 2686667 (1954-08-01), Willison et al.
patent: 2832476 (1958-04-01), Metzger
patent: 2850179 (1958-09-01), Nystrom et al.
patent: 2889056 (1959-06-01), Blattner
patent: 2990962 (1961-07-01), Nystrom
patent: 2990963 (1961-07-01), Kulieke
patent: 3185317 (1965-05-01), Willison
patent: 3414135 (1968-12-01), Levie
patent: 3637088 (1972-01-01), Bremond
patent: 3856153 (1974-12-01), Cope
patent: 4111406 (1978-09-01), Zanow
patent: 4230228 (1980-10-01), Kaim
patent: 4258628 (1981-03-01), Altherr
patent: 4422557 (1983-12-01), Altherr
patent: 4456133 (1984-06-01), Altherr et al.
patent: 4506868 (1985-03-01), Shiroyama et al.
patent: 4531648 (1985-07-01), Paton
patent: 4545304 (1985-10-01), Brodeur et al.
patent: 4549666 (1985-10-01), Altherr et al.
patent: 4555033 (1985-11-01), Miller
patent: 4573594 (1986-03-01), Kunst et al.
patent: 4580686 (1986-04-01), Elliott
patent: 4589558 (1986-05-01), Brodeur et al.
patent: 4593827 (1986-06-01), Altherr
patent: 4681040 (1987-07-01), Brodeur et al.
patent: 4700853 (1987-10-01), Altherr et al.
patent: 4700854 (1987-10-01), Chadwick
patent: 4776474 (1988-10-01), Terlecky et al.
patent: 4848611 (1989-07-01), Terlecky et al.
patent: 4946052 (1990-08-01), Kaim et al.
patent: 4949856 (1990-08-01), Solomon
patent: 4966291 (1990-10-01), Glover
patent: 5000330 (1991-03-01), Kaim et al.
patent: 5002192 (1991-03-01), Kaufhold
patent: 5005715 (1991-04-01), Solomon
patent: 5042393 (1991-08-01), Kanjo et al.
patent: 5054630 (1991-10-01), Altherr
patent: 5080242 (1992-01-01), Steffen et al.
patent: 5096075 (1992-03-01), Glover
patent: 5105955 (1992-04-01), Hawryszkow et al.
patent: 5131548 (1992-07-01), Chi
patent: 5172818 (1992-12-01), Mautino et al.
patent: 5190173 (1993-03-01), Mautino et al.
patent: 5193699 (1993-03-01), Kaufhold et al.
patent: 5207718 (1993-05-01), Glover et al.
patent: 5221015 (1993-06-01), Mautino et al.
patent: 5246135 (1993-09-01), Radwill
patent: 5312007 (1994-05-01), Kaufhold et al.
patent: 5320229 (1994-06-01), Mautino et al.
patent: 5339970 (1994-08-01), Mautino et al.
patent: 5360124 (1994-11-01), Wurzer et al.
patent: 5360125 (1994-11-01), Dawson et al.
patent: 5415304 (1995-05-01), Hanes et al.
Keystone Railway Equipment Co., Keystone Draft Gear Model NC-496 (Drawing No. SB-44481), Feb. 12, 1992.
Keystone Railway Equipment Co., Keystone Mini-Gear Model 495-4A (Drawing No. B-16560), Aug. 10, 1995.
V. Terrey Hawthorne and Anthony R. Hratt, ASME Publication "Progress Report-Slackless Drawbar Testing", Apr./May 1992, pp. 61-67.
S. K. Punmani and F. D. Irani, Railway Age Publication "Preload Enhancing Cushioning" May 1995, pp. 55-61.
Hooker, P.C. Thomas
Keystone Industries Inc.
Morano S. Joseph
LandOfFree
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