Patent US3737265A successfully refreshed from Google Patents.
US3737265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for continuous forming of gypsum bodies, in particular plates
Assignee: FERMA ENTWICKLUNGSWERK
•
Filing: 1972-01-28
•
Granted: 1973-06-05
•
Expires: 1992-01-28
Abstract
Abstract An arrangement for the continuous production of form bodies, in particular of plates of gypsum and additional material, as well as voluminous feltering fibers by applying of the dry material onto an endless moving form face and moistening of the material with a quantity of water only slightly above the quantity necessary for setting which comprises at least two storage silos storing and discharging dry material. A conveying device having discharge openings as well as mixing-, moisture-, pressing- and drying stations. The conveying device includes at least one preliminary form band consisting of a dense member and passing on a horizontal and straight extending plane said material discharge station. The preliminary form band is connected with at least one device continuously measuring the weight of a material strand and terminating in the conveying direction in a mixing device of a combined mixing and moistening station, in which station being connectable a form band comprises an air passing sieve-like formed textile. The form band extends through all the stations forming the material strand to form bodies up to at least a separating station disposed in front of a drying station on a straight-line plane. The form band is connectable with a conveyor defice having passing individual frames running upright through the drying station.
Inventors
- 👤 K Schafer
- 👤 A Hohne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:22
CPC Classifications
B; B28; B28B; B28B1/00; B28B1/52; B28B1/521
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
228 words
An apparatus for the continuous production of forming bodies, in particular of plates of gypsum and additional material, as well as voluminous feltering fibers by applying of the dry material onto an endless moving form face and moistening of the material with a quantity of water only slightly above the quantity necessary for setting, comprising at least two storage silos and discharging stations associated therewith to discharge dry material therefrom, a conveying device passing said silos discharge openings for receiving said materials as well as mixing-, moisturing-, pressing- and drying stations, said conveying device including at least one preliminary form band consisting of a dense member and passing on a horizontal and straight extending plane said material received from said discharge stations, said preliminary form band being connected with at least one device continuously measuring the weight of a material strand and terminating in the conveying direction in a mixing device of a combined mixing and moistening station, in which said station being connectable with a form band comprising an air passing sieve-like structure formed of textile, said form band passing through all said stations forming a material strand of combined materials to a separating station disposed in front of a drying station on said straight-line plane, and said form band being connectable with an additional conveyor device having passing individual frames running upright through said drying station.
Claim 2
Independent Claim
228 words
An apparatus for the continuous production of forming bodies, in particular of plates of gypsum and additional material, as well as voluminous feltering fibers by applying of the dry material onto an endless moving form face and moistening of the material with a quantity of water only slightly above the quantity necessary for setting, comprising at least two storage silos and discharging stations associated therewith to discharge dry material therefrom, a conveying device passing said silos discharge openings for receiving said materials as well as mixing-, moisturing-, pressing- and drying stations, said conveying device including at least one preliminary form band consisting of a dense member and passing on a horizontal and straight extending plane said material received from said discharge stations, said preliminary form band being connected with at least one device continuously measuring the weight of a material strand and terminating in the conveying direction in a mixing device of a combined mixing and moistening station, in which said station being connectable with a form band comprising an air passing sieve-like structure formed of textile, said form band passing through all said stations forming a material strand of combined materials to a separating station disposed in front of a drying station on said straight-line plane, and said form band being connectable with an additional conveyor device having passing individual frames running upright through said drying station.
Claim 3
Dependent Claim
86 words
The arrangement, as set forth in claim 1, which includes at least two devices disposed in series in the band moving direction for the separate discharge of said fibers and of said gypsum in strand form on top of each other, devices for measuring and dosing of said materials in layers, an apparatus for admixing together of said layers with the saving of the material strand, and a rinsing device moistening with setting water emerging from said mixing device the material strand within its ejection parable.
Claim 4
Dependent Claim
60 words
The arrangement, as set forth in claim 2, wherein said preliminary form band and said devices coordinated thereto of said stations discharging, dosing and admixing together said material are formed to a compact relatively sealingly surrounded structural unit, and said rinsing device is adjustably disposed on the material-strand-discharge parable on the housing of said unit above said material strand-discharge place.
Claim 5
Dependent Claim
114 words
The arrangement, as set forth in claim 3, which includes a returN feeding element extending over the entire discharge width of said fibers, and disposed in the running direction of said preliminary form band behind said discharge station for the voluminous fiber material and above a predetermined material layer height, said return feeding element comprising a feed roller connected with a suction device and suspended on a machine stand, said return feeding element is connected with selectively electrically or electronically controlling weight - measuring device immovably secured to a frame of said preliminary form band, and said weight-measuring device comprises radioactive and rays measuring device and is settable as to height by their impulses.
Claim 6
Dependent Claim
98 words
The arrangement, as set forth in claim 4, which includes a face weight measuring plate extending over the entire width of said strand is pivotally connected on a machine stand in the running direction of said preliminary form band behind said discharging device for said gypsum and below said upper trum of said preliminary form band, said measuring plate is maintained at its freely swingable section by a measuring device comprising an electrically controlling power measuring box in sliding engagement with said preliminary form band, and impulses of said measuring device control the discharge speed of said gypsum.
Claim 7
Dependent Claim
50 words
The arrangement, as set forth in claim 5, wherein said mixing device for admixing said fiber-gypsum-layers and of additional material is arranged in the end section of said preliminary form band, and an outwardly extending discharge lip, for the discharge of said admixed material strand, swingable about a horizontal axis.
Claim 8
Dependent Claim
63 words
The arrangement, as set forth in claim 6, which includes a rinsing device with at least one adjustably mounted water distribution and extending beyond said material strand discharge location, said water distributor has on its side pointing toward said material strand-discharge location at least one row, extending crosswise over said material strand, of finest bores, in front of which finest filters are provided.
Claim 9
Dependent Claim
27 words
The arrangement, as set forth in claim 7, wherein said water distributor has at least one device producing vibrations, said device comprising an ultra sound swinging head.
Claim 10
Dependent Claim
78 words
The arrangement, as set forth in claim 8, wherein said form band connectable in the material conveying direction behind said preliminary form band is disposed relatively tight below said material strand discharge lip of said preliminary form band and has below its upper band run a non-penetrable bottom base and a relatively short, endless underbelt moving with form band speed and consisting of a non-penetrable working material which extends from the material receiving section to a press station.
Claim 11
Dependent Claim
134 words
The arrangement, as set forth in claim 9, wherein said form band is guided in the material conveying direction behind its material receiving section with the upper band run through a progressively narrowing press slit of a band press driven with the same speed as the form band, the lower press belt of said band press carries said form band and running about at least two turning rollers and intermediate carrying elements, while the upper press belt is surrounded additionally by a second non-driven descaling belt, said upper press belt likewise running over at least two upper turning rollers mounted vertically above the lower turning rollers and carrying elements, and the running face of said descaling belt pointing toward said material strand has a face structure finally forming the surface of said material strand.
Claim 12
Dependent Claim
51 words
The arrangement, as set forth in claim 10, wherein said turning rollers and pressure elements are adjustably mounted perpendicularly to the form band passing plane and connected with a driving device, and said driving device is operable by a thickness measuring device sensing the thickness of said material strand by impulses.
Claim 13
Dependent Claim
34 words
The arrangement, as set forth in claim 11, wherein said pressure and carrying elements are worm-like chained together in an endless line and capable of being driven in loop-shaped adjustable guides with belt speed.
Claim 14
Dependent Claim
55 words
The arrangement, as set forth in claim 12, which includes a conveyor table with an endless carrier belt, carrying said form band and the supported pressed material strand is connectable with a carrier belt, the upper run of which engages individually or in groups to the conveyor plane a table plate divided into adjustable sections.
Claim 15
Dependent Claim
39 words
The arrangement, as set forth in claim 13, wherein said conveyor table has in its conveyor plane along the conveying direction carrying stays which are adjustable in cross stands individually and serve as support of the table plate sections.
Claim 16
Dependent Claim
28 words
The arrangement, as set forth in claim 14, wherein said conveyor table is equipped in its end section with a device crosswise thereof for separating said material strand.
Claim 17
Dependent Claim
171 words
The arrangement, as set forth in claim 15, which includes a passage drier with an individual grid-like frame, moved in the passage direction in upright position continuously through the drying chamber on superposed guide rails, said passage drier being connectable in the conveying direction of said material behind said form band, the upper guide rails of said individual frame on the entrance side of said drier comprising a lifting device with conveyor chains turning in an oblique plane for erection of said individual plane from a horizontal position and on the exit side of said drier a lowering device consisting of a conveyor chain running in a parabola for lowering of said individual frames into the horizontal position, and that below the said guide rails disposed in the form body-conveyor plane, a path of return rails with receiving- and conveyor-elements, co-ordinated thereto, of the lifting- and lowering device, are arranged for the return feed of said empty individual frames from the drier exit side to the entrance side in horizontal position.
Claim 18
Dependent Claim
129 words
The arrangement, as set forth in claim 16, wherein said lifting- and lowering devices have below the form body conveying plane at least one carrying arm which is pivoted to the drier frame and to two individual frame guide rails at the same level arranged connected sections of said individual frame guide rails, which guide rails with their end remote from the drier in the form body conveying plane is secured by pivots and with its other end pointing toward said drier are swingable between said form body opening and the plane of the return rail, and the liftable and lowerable guide rail-sections have at their upper side a plurality of face like distributed conveyor rollers, divided as to their face and projecting through cutouts of said individual frames.
Claim 19
Dependent Claim
82 words
The arrangement, as set forth in claim 17, wherein said form band is deviated in the range between said material strand receiving location and said press-station by a setting water-suspension bath, an endless sieve-like covering band turning in the range of the latter with the same movement as said form band, the latter running from the side of said material strand receiving position with a narrowing press slit to said form band through said setting water-suspension bath and pretensioning said material strand.
Claim 20
Dependent Claim
48 words
The arrangement, as set forth in claim 18, wherein within said setting water-suspension bath said covering band runs about at least one press roller, to which is coordinated below said form band a press roller, and at least one of said rollers is movable released by an impulse.
Claim 21
Dependent Claim
46 words
The arrangement, as set forth in claim 19, wherein said devices of said individual stations disposed within the range of said form band forming said material strand, as well as said drying device, connected with said form band are joined to a compact, exchangeable structure unit.
References Cited (Backward Citations)
US3050427A
Cited
US3171151A
Cited
US3332819A
Cited
US3271485A
Cited
US3286302A
Cited
US3356780A
Cited
US3599288A
Cited
US3703347A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-04 | 1976-12-04 | 1977-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-04 | 1980-12-04 | 1981-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-04 | 1984-12-04 | 1985-06-05 | $7700.00 | Window Closed / Lapsed |