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52. 发明专利

GB2218841A Message board 未知
公开(公告)号：GB2218841A
公开(公告)日：1989-11-22
申请号：GB8809665
申请日：1988-04-23
申请人： WOOD WILLIAM THOMAS
发明人： WOOD WILLIAM THOMAS
IPC分类号： B43L1/00 , G09F7/00
摘要： A message board which includes a private message area for receiving and displaying a message; a cover for covering the private message area; and means for locking the cover in position to cover the private message, the locking means being capable of being unlocked to allow the cover to be moved to reveal any message displayed on the private message area.

53. 发明专利

GB2218076A Sample tube 未知
公开(公告)号：GB2218076A
公开(公告)日：1989-11-08
申请号：GB8807132
申请日：1988-03-25
申请人： BATES WILLIAM THOMAS DENNIS
发明人： BATES WILLIAM THOMAS DENNIS
IPC分类号： A61B5/15
摘要： A sample tube comprises a tube (1) and piston means (4) so movable therein that opposed portions of the tube are separated one from the other in a substantially sealing manner. A first cover (6) at one end of the tube is adapted to be pierced by a hypodermic needle or the like and reseal after withdrawal thereof. A second cover (9) at an opposite end is adapted to allow communication, to atmosphere or to a vacuum generating device, of the tube portion adjacent thereto.

55. 发明专利

GB2207077A Manipulator for headed pin 未知
公开(公告)号：GB2207077A
公开(公告)日：1989-01-25
申请号：GB8812378
申请日：1988-05-25
申请人： HILLS WILLIAM THOMAS
发明人： HILLS WILLIAM THOMAS
IPC分类号： B25C3/00 , B25C11/00
摘要： A hand tool (10) for the remote manipulation of a headed pin fastening, e.g. a drawing pin (25), said tool (10) comprising an elongate cylindrical rod (11) of the order of 1 m in length and a tool head (15) mounted at one end thereof. The tool head (15) comprises a generally cup-shaped member into which said one end of the elongate rod is received, the end wall (17) being spaced from an adjacent radial end face (14) of the rod and having a generally sector-shaped or a generally keyhole-shaped aperture (21) extending inwardly from part of the periphery. The perimeter wall (16) is apertured to provide a sideways entrance (19) to receive a pin head (22), the said sideways entrance (19) being wider than the said aperture (21). Optionally, a permanent iron magnet (12) of disc-like form is provided at or adjacent to said end face (14) to provide for magnetic retention of a headed pin fastener (25) of magnetisable material.

56. 发明专利

GB2163034B IMPROVEMENTS IN OR RELATING TO AUTOMATIC IMPLEMENT HITCHES 未知
公开(公告)号：GB2163034B
公开(公告)日：1988-04-27
申请号：GB8420793
申请日：1984-08-16
申请人： WHITE EILEEN ALICE , WHITE DAVID JOHN , WHITE WILLIAM THOMAS
发明人： WHITE DAVID JOHN , WHITE WILLIAM THOMAS
IPC分类号： A01B59/06 , A01B59/043

58. 发明专利

HK44785A SAMPLE TUBE 未知
公开(公告)号：HK44785A
公开(公告)日：1985-06-14
申请号：HK44785
申请日：1985-06-06
申请人： BATES WILLIAM THOMAS DENNIS
发明人： BATES WILLIAM THOMAS DENNIS
IPC分类号： B01L3/02 , G01N1/10 , G01N15/04 , B01J3/02 , G01N1/14
摘要： A sample tube for obtaining a column of liquid of predetermined height in laboratory applications comprises a simple and effective construction, with a local restriction in internal diameter a predetermined distance from an inlet end and a movable valve member such as a lead shot disposed in the tube between the restriction and the opposite end, for co-operating with the restriction to retain a column of liquid at the level of the valve member and restriction by surface tension effects. In operation, liquid is drawn into the tube by suction to a level substantially above restriction, then the suction is removed and the liquid is allowed to drain out of the end, passing the lead shot owing to an imperfect seal between the lead shot and the restriction. When the liquid reaches the level of the lead shot and restriction, it is retained at this level by surface tension effects interacting with the lead shot and restriction.

59. 发明专利

GB2098079A Improvements in or relating to apparatus for mixing cement with water and foaming agent 未知
公开(公告)号：GB2098079A
公开(公告)日：1982-11-17
申请号：GB8029194
申请日：1980-09-10
申请人： WILLIAMS WILLIAM THOMAS
IPC分类号： B28C5/04 , B28C9/04 , B01F7/08 , B01F15/02
摘要： The invention comprises a helical device for feeding and/or mixing particulate material such as cement, sand and fuel ash in which the helix is round bar. A single helix may be provided or one helix within another. Helices 8, 10, 13, 20-23 may be incorporated in an apparatus for metering sand and cement into a mixing device while also feeding water and foaming agent into the mixing device to produce aerated concrete.

60. 发明专利

DE3060883D1 SAMPLE TUBE 未知
公开(公告)号：DE3060883D1
公开(公告)日：1982-11-11
申请号：DE3060883
申请日：1980-01-07
申请人： BATES WILLIAM THOMAS DENNIS
发明人： BATES WILLIAM THOMAS DENNIS
IPC分类号： B01L3/02 , G01N1/10 , G01N15/04
摘要： A sample tube for obtaining a column of liquid of predetermined height in laboratory applications comprises a simple and effective construction, with a local restriction in internal diameter a predetermined distance from an inlet end and a movable valve member such as a lead shot disposed in the tube between the restriction and the opposite end, for co-operating with the restriction to retain a column of liquid at the level of the valve member and restriction by surface tension effects. In operation, liquid is drawn into the tube by suction to a level substantially above restriction, then the suction is removed and the liquid is allowed to drain out of the end, passing the lead shot owing to an imperfect seal between the lead shot and the restriction. When the liquid reaches the level of the lead shot and restriction, it is retained at this level by surface tension effects interacting with the lead shot and restriction.

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