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    • 1. 发明专利
    • An automatic depth control apparatus for implements mounted on agricultural tractors
    • GB821225A
    • 1959-10-07
    • GB1677955
    • 1955-06-10
    • JOHN CHARLES WRIGHT
    • A01B63/114
    • 821,225. Tractor power-lift mechanisms. WRIGHT, J. C. June 11, 1956 [June 10, 1955], No. 16779/55. Class 79(1) An automatic depth control apparatus for an implement 32, Fig. 1, mounted on a tractor so as to be raised and lowered by a hydraulic lifting mechanism 21, 22 and 27 to 30, has a valve means 1 mounted on the implement and operated by the movements of a ground wheel 2 of the implement, the valve means controlling the flow of hydraulic fluid to the lifting mechanism so as to control the working depth of the implement. As shown, the ground wheel 2 is carried by a bell-crank lever 3 pivoted at 4, to the plough 32, the latter being connected to a tractor and liftable and lowerable by a hydraulic lift 21, 22, bell-crank 28, 31 pivoted on the the tractor and a lifting link 30. The bellcrank 3 is connected by a swivel nut 7 to an adjusting screw 8, passing through a socket 9 mounted on a swivel 10 on a part 11 of the plough 32, the upper end of the screw 8 having an operating handle 12. The screw 8 is connected, between two collars 15, with a swivel connection 13 having a slidable connection with a control lever 14 of a disc type main valve 1 mounted on the plough. A pump 18 is connected by a flexible hose 16 to the inlet of the valve 1 the outlet of which is connected by another hose 17 with a secondary manually operable valve 19 communicating with a sump. The pump 18 is also connected by a smaller hose 20 with the lift cylinder 21. The valve 1 has a disc with an eccentric opening which is registerable with an outlet opening connected to the hose 17. When the tractor is operating the valve 19 is open and if the wheel 2 is lifted the opening in the disc moves out of registry with the outlet of the valve 1 and thus pressure builds up in the cylinder 21 to cause the plough to lift. When the wheel 2 frees, the disc opening moves into registration with the valve outlet and" relieves the cylinder, so that the plough can fall. Normal lifting and lowering of the plough is effected by operating the valve 19 and the depth of the plough is adjusted by the handle 12.
    • 4. 发明专利
    • Improvements in or relating to framed buildings
    • GB552784A
    • 1943-04-23
    • GB46542
    • 1942-01-12
    • GEORGE CHARLES WRIGHTGYPROC PRODUCTS LTD
    • E04B1/24
    • 552,784. Metal framed buildings. WRIGHT, G. C., and GYPROC PRODUCTS, Ltd. Jan. 12, 1942, No. 465. [Classes 20 (ii) and 20 (iv)] The walls of a sectional structure are built up of preformed rectangular frames each consisting of two pairs of spaced sheet metal channel section posts P 1 , P, and upper and lower channelsection bars 23, 24 between and welded to the posts. The frames, which between the windows and doors are storey high, are interconnected by dowels engaging the ends of the posts and bars. The walls are covered externally with slabs 38 of heat-insulating material such as wood-wool bound with cement and faced with waterproof cement mortar 39. The slabs are secured to the frames by sheet steel fasteners 42. The inner wall panels 55, which may be made of gypsum plaster, are held at their lower ends in grooves in blocks in the frames and at their upper ends by picture rails 53 supported on a seating plate 49 for the ceiling panels. The vertical junctions between the inner lining panels are made by steel panel strips 58 of the kind described in Specification 528,612 held in place by stamped steel keys 59. The wood frames of the doors and windows are secured to the posts of the preformed frames by steel brackets engaging interned flanges on the posts.
    • 6. 发明专利
    • Improvements in or relating to buildings comprising sheet metal sections
    • GB536286A
    • 1941-05-08
    • GB166640
    • 1940-01-26
    • GEORGE CHARLES WRIGHTGYPROC PRODUCTS LTD
    • E04B1/08E04B1/24E04C2/38
    • 536,286. Sectional buildings. WRIGHT, G. C., and GYPROC PRODUCTS, Ltd. Jan. 26, 1940, No. 1666. [Class 20 (i) and 20 (iv)] A building having plain wall, door, and window sections 31, 32, 33 bolted together comprises sheet-metal posts slightly spaced apart to ' receive flat metal keys 88 by which profiled joint-covering strips are secured. The strips have flanges engaging the edges of internal and external plaster-board panels. The wall sections comprise channels 34, 35, 36 with corner braces 38 and cross-rails 39. The door sections comprise channels 51, 52 with corner braces 59, the door jambs 54 and head 55 being secured by welded-in rails 63. The window sections comprise channels 67, 68, 69 with corner- and crossbraces 70, 71, the window-frame 75 being secured by cross-rails 74; or, the channelled sides of the frame may have internal posts welded to the sections 67. The various sections are bolted to a concrete sill 30 through a flanged sill-plate 46. As shown in Fig. 11, adjacent frame sections are connected by bolts 77, spaces 79 being provided by means of struck-up lugs 78 on the sections. Flanged channel strips 80, 84 lapping the panels 48, 50 are secured by means of flat metal keys 88, Fig. 13, each having at one end oppositely-directed lugs 89 to engage the inturned inner edges of the strip 80 ; at the other end a reduced neck 91 and head 92 ; and, intermediate at its ends, a slot 90 for engagement by the bolt 77. The head 92 is passed through a slot in the strip 84 and then twisted through 90 degrees to clamp the strips and panels in position. Fig. 11 also shows the corners of the building united by angle-brackets 93 fitted with cover-plates 96 which overlap the edges of the exterior panels 50. Internal corner strips 97 are secured by sheet-metal hooks 98 which are slotted to engage over the brackets 93. The roof is made up of beam units 99 of inverted channel form, each unit comprising a centre part of uniform depth which is welded to end portions of tapering depth, a hog-backed beam being thus formed. The ends of the units are bolted to wall-capping members 105, also of inverted channel section, the inner webs being formed with retaining -flanges 116 for ceiling- panels 117. Distance-pieces 112 are fitted between the ends of the roof-units and the facia 113.
    • 7. 发明专利
    • Improvements in wall and ceiling construction
    • GB493571A
    • 1938-10-11
    • GB1932137
    • 1937-07-12
    • GYPROC PRODUCTS LTDGEORGE CHARLES WRIGHT
    • E04B9/06E04B9/16
    • 493,571. Wall and ceiling surfacing; lathing. GYPROC PRODUCTS, Ltd., and WRIGHT, G. C. July 12, 1937, No. 19321. [Class 20 (iv)] Supporting means for the panel boards f forming a wall or ceiling surface comprises main beams b carried from the wall or ceiling structure, members d of H-cross-section having a hollow web d , and hangers e which engage one flange of a main beam b, pass through slots d in the inner flange of the member d, and are disposed in a twisted condition in the said hollow web d with their outer ends e , which are of T-shape, in engagement with the outer portions of the members d. The members b are of channel- or H-cross-section, and the members d, which are adapted to engage the boards f, are preferably bent from sheet metal so as to provide the hollow web d which is open at the outer end and closed, apart from the slots d , at the inner end. The slots d are of such a size as to permit the insertion into the web of the twisted stem e and T-end e2 of the hanger e, and the spacing of the walls of the web d is such as just to house the twisted stem e of the hanger. After insertion of the twisted hanger into the member d, the stem e is further twisted through 90‹ so that the T-end e extends across the member d. The main beam b is carried by a metal device a which is formed with a closed loop at its lower end to receive the beam b, and a key-plate c is threaded over the upper end of the device and is adapted to tighten the grip of the loop on the member b. The upper end of the device a is nailed to a ceiling rafter. The flanges of the member d are provided with a series of bent loops d adapted to form supports for wires g which are threaded through the loops d and serve to support plaster applied to the boards f.