Scraper device having receptacle walls heated by engine exhaust

Details Scraper device having receptacle walls heated by engine exhaust Scraper device having receptacle walls heated by engine exhaust

1976-03-15

1977-07-26

Eickholt, E. H.

Excavating

Snow or ice removing or grooming by portable device

Railway clearer

298 1H, E02F 306

Patent

active

040373363

ABSTRACT:
This invention comprises a scraper having a front and rear frame. The rear frame has a receptacle for receiving and holding dirt with an unloading plate in the receptacle for receiving the dirt thereon. A cover plate is pivotally mounted to the front of the receptacle to open and close the receptacle. An engine is mounted on the rear frame for powering the rear frame wheels. An engine is mounted on the front frame for powering the front wheels. The receptacle has side walls with compartments in the side walls. Pipe means converts the heated exhaust from the rear engine to the compartments in the side walls. The compartment structure of each of the side walls has passageway and an outlet so that the heated exhaust leaving the rear engine must travel in the compartment structure along major portions of the side walls of the receptacle before traveling out the outlets to heat the side walls and the heat for the exhaust warms the side walls and keeps them sufficiently warm so that the ejection plate and cover plate will not freeze or lock to the side walls at the receptacle by the moisture or frost in the dirt that may lodge between the unloading plate and cover plate and the side walls of the receptacle when operating the scraper in very cold sub zero weather.

REFERENCES:
patent: 2721097 (1955-10-01), Rittenhouse
patent: 2925301 (1960-02-01), Milligan
patent: 2965988 (1960-12-01), Monk
patent: 3331433 (1967-07-01), Hagberg
patent: 3472548 (1969-10-01), Comisac
patent: 3863367 (1975-02-01), Gee et al.

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