Patent US3683708A successfully refreshed from Google Patents.
US3683708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for embodying step by step rotary motion
Assignee: Individual
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Filing: 1971-04-21
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Granted: 1972-08-15
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Expires: 1991-04-21
Abstract
Abstract Mechanism for imparting step by step or intermittent rotary motion to a table or the like. On the underside of the table is a circular row of rollers of an uneven number. Disposed transversely of the underside of the table is an actuating arm, in the center of which is a driven rotary eccentric cam. Notches in opposite ends of the arm recurrently engage rollers in said row in response to rotation of the eccentric cam. Beneath one of said notches is fixed a block similarly notched and projecting a distance forwardly beyond the end of the actuating arm. Disposed in the notch in the block is a roller rotatable about a fixed axis. Depending upon the direction of rotation of the eccentric cam step by step rotary movement is imparted to the table in one direction or the other.
Inventors
- 👤 Raymond J Dwyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:03
CPC Classifications
F; F16; F16H; F16H27/00; F16H27/04; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1503; Y10T74/1508; Y10T74/1511; Y10T74/18; Y10T74/18528
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
165 words
A machine for imparting step by step rotary motion comprising a table mounted for rotary movement, a circular row coaxial with the table axis of an uneven number of rollers projecting from said table, an actuating arm arranged transversely of said table having roller-engaging notches at opposite ends thereof, a driven rotary eccentric cam operating in a central hole in said actuating arm, a block secured to one side of said actuating arm at an end portion thereof and projecting beyond the end of said arm, said block having a roller engaging notch registering with the adjacent notch of said arm and extending to the outer end of said block, and a roller mounted on a fixed axis relatively shiftable in said notch of said block and at all times disposed therein, whereby responsive to the eccentric cam movement, the actuating arm is shifted so as to successively engage table mounted rollers and also rocked about the stationarily mounted roller to effect intermittent table movement.
Claim 2
Dependent Claim
165 words
A machine for imparting step by step rotary motion comprising a table mounted for rotary movement, a circular row coaxial with the table axis of an uneven number of rollers projecting from said table, an actuating arm arranged transversely of said table having roller-engaging notches at opposite ends thereof, a driven rotary eccentric cam operating in a central hole in said actuating arm, a block secured to one side of said actuating arm at an end portion thereof and projecting beyond the end of said arm, said block having a roller engaging notch registering with the adjacent notch of said arm and extending to the outer end of said block, and a roller mounted on a fixed axis relatively shiftable in said notch of said block and at all times disposed therein, whereby responsive to the eccentric cam movement, the actuating arm is shifted so as to successively engage table mounted rollers and also rocked about the stationarily mounted roller to effect intermittent table movement.
Claim 3
Dependent Claim
30 words
A machine as claimed in claim 1, comprising a shaft about which said table rotates, a fixed connection between said shaft and eccentric cam, and means for rotating said shaft.
Claim 4
Dependent Claim
45 words
A machine as claimed in claim 2, comprising a stationary platen generally parallel to said tale and through which said shaft extends, antifriction thrust bearings in said table and platen for said shaft, and means for mounting said fixed axis mounted roller on said platen.
Claim 5
Dependent Claim
36 words
A machine as claimed in claim 3, in which said eccentric cam and actuating arm are disposed between said table and platen, and said circular row of rollers are mounted on the underside of said table.
Claim 6
Dependent Claim
17 words
A machine as claimed in claim 2, comprising leg means for said platen to hold same stationary.
Claim 7
Dependent Claim
19 words
A machine as claimed in claim 1, comprising antifriction bearings interposed between said eccentric cam and said actuating arm.
References Cited (Backward Citations)
US2784599A
Cited
US3287984A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |