Woodworking – Special-work machine – Combined
Patent
1980-09-17
1983-02-01
Bray, W. D.
Woodworking
Special-work machine
Combined
294011, 144 2R, 254 30, 405303, B27C 900
Patent
active
043710182
ABSTRACT:
A method and apparatus for lengthening or shortening a pole supporting lines, such as electric power and telephone lines. The method includes the providing of a stub adapted to be joined in abutting end-to-end relationship with the lower end of the pole to form a lower extension and support for the pole. The pole is raised vertically until its lowermost end portion is clear of the ground so that a lower end portion of the pole can be sized, as necessary, for reception by a mechanism joining the pole and stub. If necessary, the length of the pole is also shortened to provide a desired combined length. After the lower end has been sized, the pole and stub are joined to each other so that they constitute, in effect, a substantially rigid continuation of each other. The pole and stub are then vertically lowered into the ground to a required depth and the ground is consolidated around the base of the stub. The apparatus includes appropriate structure for accomplishing the preceding method.
REFERENCES:
patent: 3911548 (1975-10-01), Perry
Longer Concrete Base for Higher Poles; Utility Methods, Electrical World, Jan. 15, 1980.
Mod/Pole; Tech. News, Issue 1, vol. 1 (Interpace).
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