Adjustable gear support bracket
AssigneeSchlumberger Canada Limited
InventorChesley R. Howell
Life of this patent
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Abstract
The tooth depth of a gear meshing with a worm wheel, such as used in an electricity meter register, is adjusted by providing a mounting plate for holding the shaft of the toothed gear having a limited range of motion for adjusting the distance of the gear from the worm. The toothed gear has one end of its shaft attached to a mounting plate having a J-shaped cutout provided along one edge. The shaft of the gear is mounted to the "hook" portion of the cutout. Movement of the J-shaped cutout in a direction within the plane of the mounting plate causes a corresponding change in the distance of the toothed gear from the worm, thus enabling the mesh depth between the gear and the worm to be easily adjusted. The arrangement has no moving parts and can be formed using a simple die-stamping process.
Claims4
An adjustable bracket for supporting a shaft comprising:
- a substantially planar member having an outer edge and an opening formed in the planar member;
- a generally J-shaped slot formed in the planar member, the slot having two arm portions with one arm portion communicating with the outer edge of the planar member and wherein the opening is disposed within a portion of the planar member bounded by the two arm portions defined by the slot;
- a shaft having one end mounted in said opening and its opposite end mounted at a fixed distance from the bracket;
- a toothed gear mounted to the shaft;
- and
- a worm gear having threads meshing with the toothed gear, wherein
- the bracket and worm gear are at a fixed distance from each other, except for that portion of the planar member to which the shaft is mounted;
- whereby the distance of the shaft from said edge of the planar member is adjustable by moving the portion of the planar member bounded by the arm portions within the plane of the planar member so as to change the width of the arm portions of the slot by a desired amount.
Dependencies are inferred from the claim text.