Patent US3735546A successfully refreshed from Google Patents.
US3735546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for lining kilns
Assignee: Individual
•
Filing: 1971-04-22
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Granted: 1973-05-29
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Expires: 1991-04-22
Abstract
Abstract Apparatus for installing adjacent rings of bricks against a cylindrical wall, such as a kiln shell, characterized by a wheel mounted frame, a main conveyor at the bottom of same for moving bricks longitudinally, a transverse group forming conveyor disposed at each side of the main conveyor, a swingable arm for each group forming conveyor having clamping apparatus for grasping a group, and a swingable operator platform for each clamping apparatus from which the movement of a group is controlled to its desired position in the ring. Certain parts of the apparatus which are disposed in the upper two quadrants, when in use, are foldable into the lower two quadrants to facilitate installation of the apparatus through an end aperture of a kiln having a cross section less than the kiln cross section and which also renders the apparatus more compact for transportation over roads to its various loci of use. In use, the kiln remains stationary and the bricks are retained by gravity in the lower two quadrants. After they reach the horizontal diameter they are retained in place in the upper two quadrants by suitable supports and until they are finally keyed together at the tops of the upper quadrants.
Inventors
- 👤 V Newman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:36
CPC Classifications
E; E04; E04G; E04G21/00; E04G21/14; E04G21/16; E04G21/22; F; F27; F27B; F27B7/00; F27B7/20; F27B7/28
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
202 words
Apparatus for installing adjacent rings oF bricks, to the inner surface of a cylindrical wall having a central longitudinal axis, such as a kiln shell, said wall forming lower and upper pairs of quadrants, comprising: a. a main frame movable longitudinally within said wall and means for securing same thereto at spaced positions therealong, b. brick assembly stations for supporting two groups of juxtaposed bricks adjacent the bottom of the wall, one at each side of a vertical diameter thereof, c. a radially extensible arm for each group pivoted to the frame for swinging movement substantially about said longitudinal axis, d. a clamp device carried by the outer end of each arm for releasibly grasping one of said groups, e. means for moving each clamp device relative to an arm in the longitudinal direction of the wall, f. upper brick support means disposed within the upper pair of quadrants for temporarily holding the blocks in position therein and until they are finally keyed between the upper pair of quadrants, and g. a control station for each arm for controlling the angular extent of its swinging movement, its radial extension, the longitudinal movement of a clamping device, and the clamping and release thereof.
Claim 2
Dependent Claim
202 words
Apparatus for installing adjacent rings oF bricks, to the inner surface of a cylindrical wall having a central longitudinal axis, such as a kiln shell, said wall forming lower and upper pairs of quadrants, comprising: a. a main frame movable longitudinally within said wall and means for securing same thereto at spaced positions therealong, b. brick assembly stations for supporting two groups of juxtaposed bricks adjacent the bottom of the wall, one at each side of a vertical diameter thereof, c. a radially extensible arm for each group pivoted to the frame for swinging movement substantially about said longitudinal axis, d. a clamp device carried by the outer end of each arm for releasibly grasping one of said groups, e. means for moving each clamp device relative to an arm in the longitudinal direction of the wall, f. upper brick support means disposed within the upper pair of quadrants for temporarily holding the blocks in position therein and until they are finally keyed between the upper pair of quadrants, and g. a control station for each arm for controlling the angular extent of its swinging movement, its radial extension, the longitudinal movement of a clamping device, and the clamping and release thereof.
Claim 3
Dependent Claim
45 words
Apparatus in accordance with claim 1 wherein the control station for each arm comprises a pair of operator elevators swingable substantially about said longitudinal axis, whereby an operator carried by each may observe and control installation of blocks in his respective upper and lower quadrants.
Claim 4
Dependent Claim
35 words
Apparatus in accordance with claim 2 wherein each elevator includes a platform on which an operator may stand, and means for maintaining same in a substantially horizontal position in all positions of its swinging movement.
Claim 5
Dependent Claim
49 words
Apparatus in accordance with claim 1 wherein each clamping device is constructed to engage opposite ends of a group closely adjacent the forward faces thereof, and a movable pusher member associated therewith engageable with said forward faces for moving the group rearwardly out of engagement with the clamping device.
Claim 6
Dependent Claim
47 words
Apparatus in accordance with claim 4 wherein each clamping device includes a U-shaped frame, the bight portion of which is pivotally connected to its carrying arm to permit limited angular float, whereby all of the blocks of a group may be forced into engagement with the wall.
Claim 7
Dependent Claim
42 words
Apparatus in accordance with claim 1 wherein the means for forming the two groups of bricks comprises a central main conveyor for carrying all of the bricks, and means for alternately moving the bricks from the main conveyor to form said groups.
Claim 8
Dependent Claim
88 words
Apparatus in accordance with claim 6 wherein the main conveyor includes spaced idler rolls on which the bricks may descend by gravity, a pivoted continuation of said main conveyor adapted to receive one brick and thence pivot upwardly to block entry of the next brick thereto, said brick assembly stations each having arcuately disposed idler rolls, an oscillatable paddle operated in synchronism with the pivoted motion of said continuation, operable to alternately transfer a brick on said continuation to one or the other of said brick assembly stations.
Claim 9
Dependent Claim
34 words
Apparatus in accordance with claim 7 including means associated with each brick assembly station for permitting delivery of a brick thereto but preventing downward retrograde motion of the bricks as they are assembled thereon.
Claim 10
Dependent Claim
124 words
Apparatus in accordance with claim 1 wherein said main frame rotatably carries a pair of wheels adjacent its rear end adapted to roll along previously installed bricks, the wheels being disposed at opposite sides of the vertical diameter of the wall, and at least one wheel rotatably carried by the front end of the frame adapted to roll along the cylindrical wall at a locus adjacent the lowermost portion thereof, thus forming a three-point wheeled support, an upwardly extending extensible mast adjacent each end of the frame, and abutments carried by lower portions of the frame, the construction being such that when the mAsts are extended they, and the abutments, rigidly affix the frame to the wall and inactivate rolling action of the wheels.
Claim 11
Dependent Claim
52 words
Apparatus in accordance with claim 1 including a pair of upwardly extending extensible masts pivotally carried by the frame, said upper support means being pivoted to the frame, the construction being such that when the masts and upper support means are pivoted downwardly they fit within the space of the lower quadrants.
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) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |