Registers – Transfer mechanism – Intermediate pinion
Patent
1978-09-28
1980-01-22
Griffin, Donald A.
Registers
Transfer mechanism
Intermediate pinion
235103, G06C 710, G01C 2200
Patent
active
041851889
ABSTRACT:
An internal pinion revolution counter includes a rotatable input shaft having first and second axial sections, and a bearing sleeve member rotatably supporting the first shaft section. A gear member is rotatably mounted on the sleeve member and has first and second axial sections, the first section having a first full tooth spur gear formed thereon. A first number wheel is secured to the second shaft section for rotation therewith, and an internal pinion transfer mechanism couples the first number wheel to the first spur gear. A second number wheel has a web portion joined to a hub portion mounted on the first spur gear for rotation therewith, and the second section of the gear member has a spur gear segment formed thereon as an extension of the first spur gear. A locking ring has a hub portion mounted on the second section of the gear member, and having an axial slot formed therein with the gear segment extending therethrough, the hub portion of the locking ring having an annular outer locking cam surface. The locking ring has an annular flange portion extending radially outwardly from the hub portion, the flange portion being secured to the web portion of the second number wheel. The gear segment has a portion extending axially beyond the hub portion of the locking ring. A pinion carrier disc is mounted on the sleeve member and has a transfer pinion rotatably mounted thereon, the transfer pinion having first and second axial sections. The first pinion section has a full tooth portion cooperating with the extension portion of the gear segment, and a mutilated portion cooperating with the locking cam surface. A third number wheel is rotatably mounted on the sleeve member and is driven by a second full tooth spur gear which cooperates with the second pinion section.
REFERENCES:
patent: 3002687 (1961-10-01), Herr
patent: 3554439 (1969-09-01), Sigl
patent: 3981441 (1976-09-01), Walters
Bowmar Instrument Corporation
Fuller Benjamin R.
Griffin Donald A.
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