US3780889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass batch feeder
Assignee: Frazier Simplex Inc
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Filing: 1971-11-09
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Granted: 1973-12-25
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Expires: 1991-11-09
Abstract
Abstract There is disclosed a blanket type batch feeder for a glass melting furnace having one or more charger plates supported in such a manner that the angle of slope of the charger plate may be adjusted about an axis that substantially coincides with the lower edge of the sand seal at the rear of the supply chute. Also the charger plate may be swiveled about an axis normal to its surface to change its angle with respect to the longitudinal axis of the furnace which it feeds.
Inventors
- 👤 J Frazier
- 👤 C Crouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:30
CPC Classifications
C; C03; C03B; C03B3/00
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
157 words
A blanket type batch feeder for glass melting furnaces wherein there is a main supporting frame with a batch delivery chute therein, and a reciprocable charger plate under the delivery chute, there being a sand seal on the rear wall of the chute having a lower edge in sliding contact with the charger plate, the invention comprising: a. support means pivotally supported in the main frame for supporting the charger plate beneath the chute to effect pivoting motion about a horizontal axis whereby the slope of the support and charger plate with reference to the chute may be changed, said axis being so located with respect to the lower edge of the sand seal that the change of angle of the charger plate with respect to the lower edge of said seal remains constant b. and means on said support means arranged to reciprocate the charger plate at any angle of slope to which it is adjusted.
Claim 2
Dependent Claim
157 words
A blanket type batch feeder for glass melting furnaces wherein there is a main supporting frame with a batch delivery chute therein, and a reciprocable charger plate under the delivery chute, there being a sand seal on the rear wall of the chute having a lower edge in sliding contact with the charger plate, the invention comprising: a. support means pivotally supported in the main frame for supporting the charger plate beneath the chute to effect pivoting motion about a horizontal axis whereby the slope of the support and charger plate with reference to the chute may be changed, said axis being so located with respect to the lower edge of the sand seal that the change of angle of the charger plate with respect to the lower edge of said seal remains constant b. and means on said support means arranged to reciprocate the charger plate at any angle of slope to which it is adjusted.
Claim 3
Dependent Claim
52 words
A blanket type batch feeder as defined in claim 1 wherein said support means comprises a platform structure under the charger plate hung from pivoted mounting means in the main frame in a position where the axis of tilt of the charger plate Coincides with the lower edge of the sand seal.
Claim 4
Dependent Claim
47 words
A blanket type batch feeder as defined in claim 2 wherein there is means operatively interposed between the main frame and the platform for changing the angle of slope of the platform about said pivotal mounting and thereby change the angle of slope of the charger plate.
Claim 5
Dependent Claim
34 words
A blanket type batch feeder as defined in claim 3 wherein said last named means comprises means for varying the slope of the charger plate during each back and forth cycle of operation thereof.
Claim 6
Dependent Claim
57 words
A blanket type batch feeder as defined in claim 4 wherein said means for varying the slope of the platform and charger plate is a fluid pressure cylinder and piston unit with one element of said unit pivotally attached to the main frame and one to said platform rearwardly of the axis about which the platform pivots.
Claim 7
Dependent Claim
44 words
A blanket type batch feeder as defined in claim 4 in which said means for reciprocating the charger plate also controls the operation of said means for varying the slope of charger plate during each back and forth cycle of operation said charger plate.
Claim 8
Dependent Claim
86 words
A blanket type batch feeder as defined in claim 1 in which the charger plate is carried on a reciprocable frame which in turn is carried on said support means and the support means comprises a platform that is below the charger plate and frame but which is suspended from a pivotal mounting in the main supporting frame the pivotal axis of which is traverse the path of reciprocable travel of the charger plate in a line directly under the lower edge of said sand seal.
Claim 9
Dependent Claim
48 words
A blanket type batch feeder as defined in claim 7 wherein the charge plate is mounted on said reciprocable frame for swiveling movement about a pivoting axis normal to the surface of said plate, and means for effecting such swiveling motion of the plate relative to the frame.
Claim 10
Dependent Claim
33 words
A blanket type batch feeder as defined in claim 8 wherein there are cooperating means on the reciprocable frame and the charger plate for selectively effecting such swiveling movement of the charger plate.
Claim 11
Dependent Claim
68 words
A blanket type batch feeder as defined in claim 9 wherein the charger plate has a pivotal connection with the reciprocable frame sliding at each rear corner thereof and there is a fluid pressure cylinder and piston connection operatively interposed between each rear corner of the charger plate and the reciprocable frame whereby the charger plate may be selectively swiveled about the pivot unit at the other corner.
Claim 12
Dependent Claim
127 words
In a blanket type batch feeder for glass melting furnaces having a main supporting frame in which there is a batch feeding chute terminating directly above a charger plate that is reciprocated in a ''''fore'''' and ''''aft'''' direction under the chute with respect to the furnace with which it is used with the charger plate being always directly below the batch feeding chute, the invention comprising: a. a reciprocable frame on which the charger plate is carried back and forth under the batch feeding chute, b. means for reciprocating said frame, and c. a pivoted connection between the charger plate and the reciprocable frame about which the charger plate may be swiveled in a plane at right angles to the direction of travel of the reciprocable frame.
Claim 13
Dependent Claim
127 words
In a blanket type batch feeder for glass melting furnaces having a main supporting frame in which there is a batch feeding chute terminating directly above a charger plate that is reciprocated in a ''''fore'''' and ''''aft'''' direction under the chute with respect to the furnace with which it is used with the charger plate being always directly below the batch feeding chute, the invention comprising: a. a reciprocable frame on which the charger plate is carried back and forth under the batch feeding chute, b. means for reciprocating said frame, and c. a pivoted connection between the charger plate and the reciprocable frame about which the charger plate may be swiveled in a plane at right angles to the direction of travel of the reciprocable frame.
Claim 14
Dependent Claim
30 words
A blanket type batch feeder as defined in claim 11 wherein there is a power-operated means for effecting the swiveling movement of the charger plate relative to the reciprocable frame.
Claim 15
Dependent Claim
40 words
A blanket type batch feeder as defined in claim 11 wherein the charger plate is pivoted on the reciprocable frame in such manner that is may be swiveled to either side of the line of travel of the reciprocable frame.
Claim 16
Dependent Claim
98 words
A blanket type of batch feeder as defined in claim 11 wherein the charger plate is connected to the reciprocal frame by pivot means at each rear corner so arranged that the plate may be swiveled about either pivot means, and a fluid pressure means at each rear corner of the charger plate connected to the reciprocable frame whereby thE charger plate may be selectively swiveled in one direction or the other by the selective operation of fluid pressure means at one corner or the other by operation of one or the other of said fluid pressure means.
Claim 17
Dependent Claim
47 words
A blanket type of batch feeder as defined in claim 11 wherein said reciprocal frame is supported for tilting adjustment of the reciprocable frame and charger plate about a transverse axis to change the angle of slope of the charger plate relative to the main supporting frame.
References Cited (Backward Citations)
US1917247A
Cited
US2281050A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-24 | 1977-06-25 | 1977-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-24 | 1981-06-25 | 1981-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-24 | 1985-06-25 | 1985-12-25 | $7700.00 | Window Closed / Lapsed |