US3670904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for collecting glass tubes at the end of a production
Assignee: Individual
•
Filing: 1971-02-17
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Granted: 1972-06-20
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Expires: 1991-02-17
Abstract
Abstract A glass tube production line in which glass tube sections are conveyed lengthwise along a conveyor at high speed is provided with frictional braking means for annulling the lengthwise speed of each tube section, permitting collection of the latter on a surface at one side of the conveyor. The braking is effected by ejecting the glass tube sections laterally from the conveyor so that they enter transverse passages defined between respective pairs of braking elements, each passage tapering in width so that each tube section is braked by contact with surfaces of friction material on the braking elements as it passes through said passages.
Inventors
- 👤 Vanfrido Olivotto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:51
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/22; B65G47/52; B65G47/525; C; C03; C03B; C03B33/00; C03B33/06; B65G2201/00; B65G2201/02; B65G2207/00; B65G2207/42
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
151 words
In a production line for glass tubes having a conveyor along which glass tube sections are conveyed in the direction of their longitudinal axes and means ejecting sections of glass tube transversely from the conveyor, apparatus for collecting glass tubes at the end of the production line on which the improvement consists in braking means at the end of the production line effective to annul the longitudinal speed of each tube section, the said braking means comprising at least two pairs of braking elements, each having external braking surfaces of friction material, said pairs of braking elements defining respective transverse passages, aligned in a direction parallel to the longitudinal axes of the tube sections on the conveyor, and positioned adjacent the tube ejection means to receive tubes ejected from the conveyor, each said passage tapering in width away from the conveyor, whereby each tube passing through said passages is braked frictionally.
Claim 2
Dependent Claim
151 words
In a production line for glass tubes having a conveyor along which glass tube sections are conveyed in the direction of their longitudinal axes and means ejecting sections of glass tube transversely from the conveyor, apparatus for collecting glass tubes at the end of the production line on which the improvement consists in braking means at the end of the production line effective to annul the longitudinal speed of each tube section, the said braking means comprising at least two pairs of braking elements, each having external braking surfaces of friction material, said pairs of braking elements defining respective transverse passages, aligned in a direction parallel to the longitudinal axes of the tube sections on the conveyor, and positioned adjacent the tube ejection means to receive tubes ejected from the conveyor, each said passage tapering in width away from the conveyor, whereby each tube passing through said passages is braked frictionally.
Claim 3
Dependent Claim
54 words
Apparatus as claimed in claim 1, including means rotating at least one braking element of each pair about an axis substantially parallel to the longitudinal axes of the tube sections on the conveyor, in a sense to eject each successive tube section through the respective passage in a transverse direction away from the conveyor.
Claim 4
Dependent Claim
100 words
Apparatus as claimed in claim 2, wherein each pair of braking elements comprises a rotating element, means rotating said element slowly about an axis parallel to the longitudinal axes of the tube sections on the conveyor, a skid element means supporting said skid element for sliding movement in a direction perpendicular to the transverse direction of ejection of the tube sections from the conveyor, means biassing each said skid element towards the rotating braking element, and means regulating the minimum distance between the skid element and the rotating element according to the diameter of the tube sections to be braked.
Claim 5
Dependent Claim
89 words
Apparatus as claimed in claim 1, including means rotating the two braking elements of each said pair slowly about axes parallel to the longitudinal axes of the tube sections on the conveyor, the said braking elements being displaceable relative to each other in a direction perpendicular to the transverse direction of ejection of the tube sections from the conveyor, means biassing the two rotating braking elements towards each other and means regulating the minimum distance between said elements according to the diameter of the tube section to be braked.
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) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |