US3946629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for severing sections from a web of material
Assignee: Windmoeller and Hoelscher KG
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Filing: 1975-06-23
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Granted: 1976-03-30
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Expires: 1995-06-23
Abstract
Abstract Apparatus for severing sections from a web of material advanced by a feed roller comprises helical cutting blades on cylinders interconnected by helical gears. The feed roller can be coupled to and uncoupled from a drive by a dog clutch and the cutting cylinders are positively connected to the drive. Means are provided for axially displacing one of the cutting cylinders when the feed roller is being uncoupled from the drive, whereby to separate the cutting blades, and for returning the cylinder to bring the blades back into cutting relationship when the feed roller is being coupled to the drive.
Inventors
- 👤 Fritz Achelpohl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:40
CPC Classifications
D; D06; D06H; D06H7/00; D06H7/02; B; B26; B26D; B26D1/00; B26D1/56; B26D1/62; B26D1/626; B31; B31B; B31B50/00; B31B50/74; B31B50/81; B31B50/812; B31B50/8122; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2183; Y10T83/2185; Y10T83/465; Y10T83/4708; Y10T83/4766; Y10T83/4795; Y10T83/4818; Y10T83/483; Y10T83/4836; Y10T83/647; Y10T83/6579
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
120 words
Apparatus for severing sections from a web advanced by a feed roller, comprising cutting blades disposed transversely to the web on cutting cylinders which are interconnected by helical gears, at least one of the cylinders being mounted for axial displacement, means including a one-finger dog clutch to couple and uncouple the feed roller from a drive means, the cutting cylinders being positively connected to the drive, and further means are provided for axially displacing at least said one of the cutting cylinders to separate the cutting blades when the feed roller is being uncoupled from the drive and for returning the cylinder to bring the blades back into cutting relationship when the feed roller is being coupled to the drive.
Claim 2
Dependent Claim
120 words
Apparatus for severing sections from a web advanced by a feed roller, comprising cutting blades disposed transversely to the web on cutting cylinders which are interconnected by helical gears, at least one of the cylinders being mounted for axial displacement, means including a one-finger dog clutch to couple and uncouple the feed roller from a drive means, the cutting cylinders being positively connected to the drive, and further means are provided for axially displacing at least said one of the cutting cylinders to separate the cutting blades when the feed roller is being uncoupled from the drive and for returning the cylinder to bring the blades back into cutting relationship when the feed roller is being coupled to the drive.
Claim 3
Dependent Claim
34 words
Apparatus according to claim 1, wherein the surface of the dog clutch is in the form of a braking cone engageable in brake surfaces of a bracket secured to a frame of the apparatus.
Claim 4
Dependent Claim
36 words
Apparatus according to claim 1, wherein one of the cutting cylinders is adjustable with respect to a drive gear therefor by means of a hand wheel acting through a flange, a rod and an intermediate member.
Claim 5
Dependent Claim
21 words
Apparatus according to claim 1, wherein said displacing means comprise a pressure cylinder acting on a bushing and a roller bearing.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-30 | 1979-09-29 | 1980-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-30 | 1983-09-29 | 1984-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-30 | 1987-09-29 | 1988-03-30 | $7700.00 | Window Closed / Lapsed |