Utility pole erection
First Claim
1. A method of erecting utility poles comprising the steps of:
- fabricating a plurality of tubular sections of utility poles each having at least a portion tapered;
the diameter of at least one of said plurality of tubular sections being larger than the diameter of another;
bringing the tubular sections to a site for erection;
pulling the tubular sections together with an apparatus that provides short repeated pulling strokes without manually adjusting said apparatus between strokes; and
erecting the utility pole.
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Accused Products
Abstract
To erect metal utility poles, a plurality of tubular sections of utility poles are fabricated, each having tapered portions and the diameter of one being slightly larger than the diameter of another. The sections are brought to a site for erection and pulled together with short repeated strokes of a hydraulic cylinder attached to one section with its piston rod connected to another section of utility pole. In one embodiment it is not necessary to manually adjust the mechanism pulling the sections of utility poles together and in another embodiment, a light flexible cord is attached to one section and a hydraulic cylinder to another section. The hydraulic cylinder pulls the cord and when the piston rod is extended for the next retraction, the cord length is adjusted.
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Citations
13 Claims
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1. A method of erecting utility poles comprising the steps of:
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fabricating a plurality of tubular sections of utility poles each having at least a portion tapered;
the diameter of at least one of said plurality of tubular sections being larger than the diameter of another;
bringing the tubular sections to a site for erection;
pulling the tubular sections together with an apparatus that provides short repeated pulling strokes without manually adjusting said apparatus between strokes; and
erecting the utility pole. - View Dependent Claims (2, 3, 4)
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5. A method of pulling sections of utility poles together, comprising the steps of:
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attaching an apparatus that provides short repeated pulling strokes to a first section;
attaching a bracket to a second section;
connecting the apparatus that provides repeated pulling strokes to bracket, whereby the first and second sections are pulled together;
when the apparatus is performing a pulling stroke; and
resetting the apparatus without manually adjusting said apparatus between pulling strokes. - View Dependent Claims (6, 7, 8)
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9. A method of erecting a utility pole comprising the steps of:
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fabricating tubular sections;
bringing the tubular sections to a site for erecting the telephone pole;
pulling the sections together with short repeated strokes by manually adjusting the position of a flexible member connecting a tug bracket and a pull arm; and
erecting the utility pole. - View Dependent Claims (10)
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11. Apparatus for pulling two sections of utility poles together comprising:
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a hydraulic pump;
at least one hydraulic cylinder;
at least one bracket;
at least one arm;
said arm being connected at one end to a piston rod of said at least one hydraulic cylinder and at the other end to the bracket whereby the sections may be pulled together. - View Dependent Claims (12)
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13. Apparatus for pulling two sections of a utility pole together comprising:
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a hydraulic pump;
a hydraulic cylinder;
a tug bracket;
a flexible member having one end connected to the tug bracket and the other end connected to a piston of the hydraulic cylinder;
the length of said flexible member between the piston and the tug bracket being adjustable, whereby on an extension stroke the flexible member can be adjusted and on a retraction stroke, the sections are pulled together.
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Specification