Patent US3726148A successfully refreshed from Google Patents.
US3726148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet advance apparatus
Assignee: Monsanto Co
•
Filing: 1971-02-22
•
Granted: 1973-04-10
•
Expires: 1991-02-22
Abstract
Abstract Apparatus for intermittently advancing successive equivalent length portions of a generally continuous sheet through an upstream article forming station. A gear assembly intermediate drive means and a sheet advance roll includes oscillating arm means which, in combination with a brake on the roll, controls its acceleration and deceleration to provide smooth sheet movement. The extent of sheet displacement may be quickly changed by a lever having a portion mounted exterior to the housing of the gear assembly which, when rotated, changes the center distance between a rotary crank in the input drive train and a pivot shaft of the oscillating arm means which receives power from the input drive train.
Inventors
- 👤 B Jope
- 👤 L Witkowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:19
CPC Classifications
B; B65; B65H; B65H20/00; B65H20/02; B65H20/04; B21; B21D; B21D43/00; B21D43/02; B21D43/04; B21D43/08; B29; B29C; B29C51/00; B29C51/26; B29C51/261; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1503; Y10T74/1508; Y10T74/1515; Y10T74/1516; Y10T74/18; Y10T74/18056; Y10T74/18216; Y10T74/18224; Y10T74/18416; Y10T74/18488; Y10T74/18528
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
115 words
Apparatus for transmitting cyclic power to an output shaft comprising: A. a unidirectional input rotary drive shaft; B. a constant r.p.m. crank operatively connected to the input shaft; C. oscillating arm means including: a. a pivot shaft; b. an arm fixedly mounted on the pivot shaft; D. a slide block pivotally connecting the crank to the arm to convert the rotary motion of the crank to oscillatory motion of the arm; E. means for transmitting the motion of the pivot shaft to the output shaft; and F. means for changing the center distance between the crank and the pivot shaft where by the oscillatory stroke of the arm and the output shaft may be changed.
Claim 2
Dependent Claim
115 words
Apparatus for transmitting cyclic power to an output shaft comprising: A. a unidirectional input rotary drive shaft; B. a constant r.p.m. crank operatively connected to the input shaft; C. oscillating arm means including: a. a pivot shaft; b. an arm fixedly mounted on the pivot shaft; D. a slide block pivotally connecting the crank to the arm to convert the rotary motion of the crank to oscillatory motion of the arm; E. means for transmitting the motion of the pivot shaft to the output shaft; and F. means for changing the center distance between the crank and the pivot shaft where by the oscillatory stroke of the arm and the output shaft may be changed.
Claim 3
Dependent Claim
27 words
The apparatus of claim 1 wherein the means for changing the center distance includes adjusting lever means having a portion pivotable about the input rotary drive shaft.
Claim 4
Dependent Claim
52 words
The apparatus of claim 2 including a housing for the apparatus and wherein said portion of the lever means is external to the housing, said apparatus further including a rod pivoted to the external portion of the lever means through which an input force may be applied to alter said center distance.
Claim 5
Dependent Claim
111 words
The apparatus of claim 2 including a housing for the apparatus and wherein said lever means comprises: a. a crank arm; b. a stub shaft fixed on said crank arm and rotatably supporting said crank; c. a hollow intermediate shaft surrounding said input drive shaft and secured to said crank arm; and d. a slotted adjusting flange external of and releasably secured to said housing, said flange being fixed on said intermediate shaft and adapted to be rotated about said input drive shaft to the extent Of the length of said slots to thereby move the stub shaft and crank with respect to the pivot shaft of the oscillating arm means.
References Cited (Backward Citations)
US968482A
Cited
US2494538A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-09 | 1976-10-09 | 1977-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-09 | 1980-10-09 | 1981-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-09 | 1984-10-09 | 1985-04-10 | $7700.00 | Window Closed / Lapsed |