US3866512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for braiding knotless netting
Assignee: August Herzog Maschinenfabrik
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Filing: 1973-01-18
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Granted: 1975-02-18
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Expires: 1993-01-18
Abstract
Abstract Track switch mechanism for a net braiding machine. Two rows of wing wheels of the machine have track switch units, between adjacent systems of wing wheels of both rows, for alternately circulating and interchanging thread supplying and thread guiding means (lacing needles), in and between the braiding heads formed by these systems of wheels. Each track switch unit periodically resets a number of track crossings in the track system of the machine. It does this in synchronism with the motions of the wing wheels and of the other track switch units. The machine produces netting which consists of braided legs interconnected by braiding, not by knots, and it produces such netting with speed and efficiency.
Inventors
- 👤 Heinz Berger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:38
CPC Classifications
D; D04; D04C; D04C1/00; D04C1/06; D04C1/08; D04C3/00; D04C3/02; D04C3/24; D04C3/30; D10; D10B; D10B2507/00; D10B2507/02
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
174 words
A machine for knotless net braiding, comprising: a generally horizontal braiding assembly having a plurality of braiding units for braiding yarns into legs with braid-interlaced connections; a braid lifter assembly coordinated with said units, to receive the braided legs therefrom and to complete their braid-interlacing; a plurality of wing wheels in each braiding unit for said braiding; bobbin needles engageable by said wheels for sliding motions along tracks in said assembly; each of said braiding units comprising stationary guide grooves disposed in a plate member through which yarn to be braided passes; a plurality of rotary track switch units, each having a plurality of track switches, generally interposed between such braiding units; each of said track switches having movable grooves which upon shifting of said track switches connect a stationary guide groove of one braiding unit with a stationary guide groove of another braiding unit; and power and control means for the braiding and track switch units, to successively circulate the bobbin needles with the wheels and interchange them therebetween in a predetermined program.
Claim 2
Dependent Claim
174 words
A machine for knotless net braiding, comprising: a generally horizontal braiding assembly having a plurality of braiding units for braiding yarns into legs with braid-interlaced connections; a braid lifter assembly coordinated with said units, to receive the braided legs therefrom and to complete their braid-interlacing; a plurality of wing wheels in each braiding unit for said braiding; bobbin needles engageable by said wheels for sliding motions along tracks in said assembly; each of said braiding units comprising stationary guide grooves disposed in a plate member through which yarn to be braided passes; a plurality of rotary track switch units, each having a plurality of track switches, generally interposed between such braiding units; each of said track switches having movable grooves which upon shifting of said track switches connect a stationary guide groove of one braiding unit with a stationary guide groove of another braiding unit; and power and control means for the braiding and track switch units, to successively circulate the bobbin needles with the wheels and interchange them therebetween in a predetermined program.
Claim 3
Dependent Claim
21 words
A machine as described in claim 1, also including power means for synchronously operating the braid units and track switch units.
Claim 4
Dependent Claim
39 words
A machine according to claim 1, wherein all braiding units have mutually similar groups of even numbers of winged wheels, each group being arranged according to a regular pattern, whereby the yarns can be interlaced in form of 8''s.
Claim 5
Dependent Claim
26 words
A machine according to claim 3, including a series of generally horizontal, plate-like structures providing pivot and housing means for said winged wheels and switch units.
Claim 6
Dependent Claim
15 words
A machine as described in claim 3, wherein each braiding unit has three braiding heads.
Claim 7
Dependent Claim
28 words
A machine as described in claim 5, wherein each pair of braiding heads has eight winged wheels and, between the two heads, one of the track switch units.
Claim 8
Dependent Claim
32 words
A machine as described in claim 5, wherein at least one braiding head in each braiding unit has track switch means including a horizontally shiftable rod and means for shifting the same.
Claim 9
Dependent Claim
32 words
A machine as described in claim 1, wherein each track switch unit comprises a generally circular disc having a number of peripheral track switch areas, and means to angularly move the disc.
Claim 10
Dependent Claim
36 words
A machine as described in claim 8, wherein each track switch area comprises at least two sub-areas each having a different track segment, one for said circulating and the other for said interchange of bobbin needles.
Claim 11
Dependent Claim
41 words
A machine as described in claim 8, wherein the disc has a stationary center, and each peripheRal track switch area, the stationary center, and the disc-surrounding horizontal braiding assembly have mutually connected grooves for said circulating and interchanging of lacing needles.
Claim 12
Dependent Claim
22 words
A machine as described in claim 8, wherein such track switch discs have cam levers to provide said means for moving them.
Claim 13
Dependent Claim
33 words
A machine for knotless net braiding according to claim 1 wherein said track switch units are intermittently movable track switch units and said apparatus comprises means for intermittently moving said track switch units.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |