Low angle approach tilt bed

Material or article handling – Self-loading or unloading vehicles – With load-receiving portion – or significant section thereof,...

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296182, 298 14, 410 30, B60P 312

Patent

active

048424706

ABSTRACT:
In an automobile tow truck, the towing bed of the present invention includes a concave floor having a radius of curvature of 50 feet. Channel beam segments are welded to the lateral edges of the concave floor. The lower flange of the beam segments terminates slightly beyond the mid-line of the concave floor. The central web of the beam segments spans between the beam flanges, but is trimmed to match the curvature of the curved floor beyond the point of termination of the lower flange. A vertical plate is welded at the front edges of the concave floor and the channel beam segments. A triangular plate is welded at each side of the towing bed to the upper flange of the channel beam segments, the vertical plate and the concave floor. An additional section of metal plate is welded to the underside of the concave floor at the rear approach edge of the towing bed to add strength and durability. Rails coextensive with the towing bed are affixed to the surface of the bed in spaced relation to opposite ones of the channel beam segments.

REFERENCES:
patent: 1266500 (1918-05-01), Lee
patent: 1460810 (1923-07-01), Cadman
patent: 2468502 (1949-04-01), Lisota
patent: 2588001 (1952-03-01), Holland
patent: 2761730 (1956-09-01), Black, Jr.
patent: 2898148 (1959-08-01), Fewster
patent: 3032217 (1962-05-01), Musson et al.
patent: 3074574 (1963-01-01), Prince
patent: 3198363 (1965-08-01), Snead
patent: 3450282 (1969-06-01), Ezolt
patent: 4261676 (1981-04-01), Balling, Sr.
patent: 4456420 (1984-06-01), Newhard
patent: 4619484 (1986-10-01), Maxey
American Towman, vol. 9, No. 7, Dec. 1986, article entitled "Distributing the Load", and selected advertisements cited by applicant.
Tow Times, vol. 4, No. 6, Jan. 1987, p. 37 and selected advertisements cited by applicant.

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