Metal fusion bonding – Process – With shaping
Patent
1978-08-04
1981-01-27
Ramsey, Kenneth J.
Metal fusion bonding
Process
With shaping
228119, B23K 3102
Patent
active
042470358
ABSTRACT:
A method for altering or retrofitting an excavating crane such as a trench hoe, back hoe, etc. into a lifting crane having a geometry suitable for scrap handling is disclosed. The conversion method is performed by cutting appropriate notches into the side plates or side walls of the main boom of a conventional crane in an area adjacent the point of connection between the main hydraulic piston and the main boom; bending the boom to form a new geometry on the main boom; forming a suitably configured insert and attaching said insert in the opening formed by the bending of the boom. In this fashion, the geometry of the main boom may be altered without the necessity for altering either the pivot point, the stroke of the pistons or any other portion of the overall crane assembly in order to change the lifting arc and create greater lifting capability. By such modification, the crane becomes suitable for scrap handling and the lifting of the substantial weights involved as contrasted to utilization in excavating operations wherein the outward reach of the boom arm is of primary importance.
REFERENCES:
patent: 1134216 (1915-04-01), Mosler et al.
patent: 3149730 (1964-09-01), Mork
patent: 3669281 (1972-06-01), Woodside et al.
patent: 3754666 (1973-08-01), Suverkrop
patent: 3777918 (1973-12-01), Barber
patent: 3870162 (1975-03-01), Nakajo
patent: 4105151 (1978-08-01), Eltroth
Ramsey Kenneth J.
Taylor Reese
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