Road structure – process – or apparatus – Process
Patent
1995-07-20
1997-04-01
Lisehora, James A.
Road structure, process, or apparatus
Process
404101, 404104, 404105, E01C 1922
Patent
active
056159722
ABSTRACT:
A conventional telescoping frame on a paving tractor is provided with fixed male extension members for insertion to and attachment with a telescoping frame member. The conventional telescoping frame includes paired forward and paired rear side-by-side female tube members. Each forward and rear tube member conventionally acts for the telescoping support of male extension members which attach directly to the cylinder and crawler via a side bolster. Within the limits of expansion, the male extension members co-acting with clamps acting through the female tube members provide for both movement of the point of crawler support and expansion of the paving width of the tractor frame. Into this combination, extenders are added for attachment to the supported end of the male extension members interior of the female telescoping members. During frame width expansion, the male telescoping members are expanded to register their ends interior of the female telescoping members to attachment access ports in the female telescoping member. The extenders are inserted, supported, and registered at complimentary attachment apertures with attachment to the males telescoping members taking place. Once attachment has occurred, further extension of the male telescoping members occurs. A simple system of pinned cross-bracing reinforces the extended frame with relatively light bracing members.
REFERENCES:
patent: 3970405 (1976-07-01), Swisher, Jr. et al.
patent: 4789266 (1988-12-01), Clarke, Jr. et al.
Cape William R.
Guntert Ronald M.
Guntert & Zimmerman Construction Div., Inc.
Lisehora James A.
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