baber/WOPTO huggingface dataset:
Patent GB-613923-A (GB)
Title: Improvements in or relating to mine props
IPC: E21D15/40
Filed: 1945-08-23
Abstract: 613,923. Mine-props. THINES, H. Aug. 23, 1945, No. 21607. Convention date, Sept. 8, 1944. [Class 20(ii)] An adjustable mine-prop of the type having two longitudinal members in frictional engagement and means for clamping them together comprises two columns 1, 2, the upper sliding within the lower, the clamping means comprising a toggle having two arms 3, 4 pivoted together at O and also in pivotal engagement, one with a shoe 5 frictionally engaging a side of the upper column 1 and the other with a shoe 6 fixed to the lower column 2. The shoe 6 forms part of a sleeve 7 encircling the upper column and secured to the lower. The centre pivot of the toggle rests on a wedge-shaped key 8 passing through slots 11 in the sleeve 7, enabling the angle of the toggle to be adjusted by moving the key 8 longitudinally. A limit is set to the clamping action, to allow the prop to give under excessive load, by a stop 9, which may be adjustable, limiting the downward movement of the shoe 5. In a modification (Fig. 10) the shoe 6 is separate from the sleeve 7 and the angle of the toggle is. adjustable independently of the key 8 by a wedge 10 inserted between the sleeve and the shoe. The figure also shows how a plurality of toggles may be disposed one above the other. Toggles may also be arranged to act on two or more shoes engaging different faces of the column 1 which may be square, hexagonal or circular in section. In the modification of Fig. 13 the key 8 is disposed between extensions 13, 14 of the arms 3, 4 which are notched to locate the key. Further modifications are shown in Figs. 10 and 11 in which one of the arms 3 or 4 comprises two members embracing the column 1 and resting on the key 8 which is carried in a shoulder 12 on the lower column, the sleeve 7 not being required. The pin pivots in these modifications may be replaced by socket pivots as in Fig. 2.
Patent GB-136910-A (GB)
Title: Improvements in Appliances for Steaming Gas Retorts.
IPC: C10B1/06
Filed: 1918-12-24
Abstract: 136,910. Whitcher, A. E., Hiller, H. K., and Hewitt Construction Syndicate. Dec. 24, 1918. Retorts.-Steam is introduced into a coal-gas retort, for the purpose of making water gas, by a distributing-block D fitted at the back of the retort A and supplied with steam through a superheater pipe C, which is situated in a waste-gas flue B and is led through the stop end of the retort tn the block. The block is provided with a steam inlet b, an expansion and heating chamber a, and distributing-passages c.
Patent GB-504691-A (GB)
Title: Improvements in and relating to electric welding machines
IPC: B23K11/04
Filed: 1938-07-21
Abstract: 504,691. Electric welding. BRITISH THOMSON-HOUSTON CO., Ltd. July 21, 1938, No. 21677. Convention date, July 21, 1937. [Class 83 (iv)] In an electric-flash welding-machine of the kind in which the upsetting motor'operates the movable gripping jaws'through a resilient link such as a spring, the link is automatically relieved of pressure after a definite upsetting pessure has been reached, so that the work parts may be released from the jaws. The movable jaws are moved by a screw spindle 4 engaging a nut 3, which is rotated by the upsetting motor through worm-gear 1, 2. When the work parts come into contact with each other the nut engages through ball-bearing 6 a flanged member 9 so as to compress the spring 7. The member 9 is connected by a screw 11 to a counter flange 10 so as to determine the initial tension of the spring. The member 9 carries a stop 12, which reciprocates a screw rack 15 so as to rotate a pinion 17 carrying a cam 16. Movement of the member 9 first causes the pressure relieving contact 13 to be closed by a spring 14 and then the cam 16 opens the pressure releasing contact 18. This causes the relay 19 controlling the forward movement of the motor to be de-energized and allows 'the return relay 21 to be energized through contact 13 so as to reverse the motor and so release pressure on the spring, whereupon the contact 13 is again opened to de-energize relay 21 and thus stop the motor. The relay 19 is provided with holding contacts 23 so that it can only respond again when the push-button switch 24 is closed. The relay 21 may respond through an adjustable time retardation relay so that the work parts may be held some time under pressure after the termination of the welding process.
Patent GB-945052-A (GB)
Title: Improvements in and relating to switchgear
Inventor: WATSON JOHN ANSLEY
IPC: H01H21/02
Filed: 1959-06-24
Abstract: 945,052. Fluid actuation of switches; regulating switches; controllers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 21, 1960 [June 24, 1959], No. 21697/59. Heading H2B. Switchgear for controlling, e.g. electric motors comprises a plurality of switch units arranged in parallel planes and having the moving contact carriers secured to support bars extending parallel to the switch axis for rotation about that axis, each carrier consisting of a plurality of section which can be assembled to and dissembled from the support bars without disturbing the remaining switch units. A plurality of switch units are assembled between end and intermediate support plates 11 connected by tie rods 12-15. On each rod is insulatingly clamped a contact carrier 27 to which fixed contacts 24, 25 are screwed. Between the support plates 11 mounting rods 40, 41, interconnected by end plates, pivot on stub axles about a central axis O. On each rod 40, 41 contact carriers 46, 47 and 48, 49 are clamped, on which contact supports 63 are mounted. Each support carries a movable contact 20-23 and is arranged to pivot about a knife-edge under spring pressure to provide a wiping action. With a supply connected to the fixed contacts and a load, e.g. an electric motor, to the terminals of the movable contacts, rotation of the switch will reverse the load connections. A central " OFF " position is provided. Operation of all the switch units in unison is obtained through two opposed fluid-pressure jacks 83, 84 mounted centrally along the switch assembly. The jacks are connected by respective lost-motion links 85, 86 to a pin on an operating lever 72 rigidly connected by a cross-head to the mounting bars 40, 41. Location of the switch units in the three positions is assisted by a toothed plate 74 coacting with rollers 77, 78 on spring-urged arms 79, 80. In an alternative embodiment, Fig. 6 (not shown), the fixed contacts 24, 25 are each divided into two separate contacts, each mounted on its own tie-rod 12-15, and no central " OFF " position is provided. The two types of switch unit may be combined in one assembly to provide greater flexibility of switching. Specification 945,053 is referred to.
Patent GB-956826-A (GB)
Title: Nozzle beds for filtration plants
IPC: B01D24/22
Filed: 1962-06-05
Abstract: 956,826. Filters for liquids. SULZER FRERES S.A. June 5, 1962 [June 7, 1961], No. 21737/62. Heading BID. In a nozzle bed 1 for a filtration plant the spaces between the filter nozzles 2 in the filter bed are filled with upwardly narrowing intermediate elements such as pyramids 3. The elements may be integral with the bed, or be introducible into the bed and secured by the nozzles as at 4, or can be manufactured together with a plate which is formed with apertures for the nozzles and which is secured to the nozzle bed. In a modification, Fig. 4 (not shown), the elements take the form of intersecting ridges defining squares or other polygonal cells, one nozzle being located in each cell. The bed may be of concrete, plastic, or metal, and the elements, when not integral with the bed, of plastic or metal. By means of the elements, a rising reverse flow of air and water scavenges the whole of the filter medium, no dead spaces being left between the nozzles.
Patent GB-929265-A (GB)
Title: Improvements in or relating to gaseous fuel burners
Inventor: RADLEY STEWART ALBERT
IPC: F23D14/46
Filed: 1958-07-07
Abstract: 929,265. Gas burners. RADIATION Ltd. July 6, 1959 [July 7, 1958], No. 21756/58. Class 75 (1). A gas burner comprises a mixing tube having parallel entrance and exit portions 10, 11 connected by an inclined intermediate portion 9. The cross-section of the entrance portion 10 decreases in the direction of gas flow and the cross-section of the exit portion 11 increases in that direction. The angle of inclination of the intermediate portion may be of a value up to ninety degrees. The burner is made from two metal pressings or castings providing a plurality of identical parallel mixing tubes and is mounted on apertured gas tubes by rods which pass through apertures in the burner. Specification 929,266 is referred to.
Patent GB-700485-A (GB)
Title: Improvements in or relating to belt clutches
IPC: F16H7/22
Filed: 1951-09-17
Abstract: 700,485. Belt gearing; stopping and starting. HILL, T. A., and BARFORD. (AGRICULTURAL), Ltd. Jan. 1, 1952 [Sept. 17, 1951], No. 21759/51. Classes 80 (1) and 80 (2) A belt drive, particularly for a light hand guided agricultural tractor, is adapted to be tensioned or released to connect or disconnect the drive. As shown in Fig. 1 the belt 1 is tensioned by a jockey pulley 9 on a bell-crank lever 11 acted upon by a spring 12 to transmit the drive from an engine 4 to a gearbox shaft 5. On release of the belt tension by retraction of the jockey pulley by operation of a hand lever 13 on the guiding handle 8 of the machine the belt 1 due to its natural resistance to bending and under, restraint of a device 15 limiting the spread assumes a shape as in Fig. 5 having a loop 16 around the driving pulley 2 so that no drive is transmitted and the belt is held clear of the pulley. During drive the device 15 is clear of both runs of the belt. In arrangements having pulleys of different sizes 'for different speeds the device 15 is provided with-parts of different sizes according to the diameters of the pulleys. Specification 697,141 is referred to.
Patent GB-981826-A (GB)
Title: Fluidizable solid injection system for furnaces
IPC: C21B5/00
Filed: 1963-05-31
Abstract: 981,826. Pneumatic conveyers. PULLMAN Inc. May 31, 1963 [June 15, 1962], No. 21867/63. Heading B8A. In a method of supplying particular solid material such as powdered coal to a furnace 184, Fig. 4, under elevated pressure conditions, the flow is divided into separate and independently controlled conduits 164 (one only shown) leading to separate lances 176 and in which the flow is maintained at a predetermined rate irrespective of pressure fluctuations in the furnace. The powdered coal delivered from a bowl mill, drying plant, cyclone separator (Fig. 2, not shown) operating at sub-atmospheric pressure is transferred in batches through an air lock system (Fig. 2, not shown) to a pressurized surge tank (Fig. 3, not shown) from which the coal is pneumatically conveyed through parallel conduits 150 (only one shown) to four distributer hoppers 152. Each of the hoppers 152 has four withdrawal conduits 164 to which air is controllably supplied from one of sixteen manifolds 340 through a series of parallel restriction orifices 342-352. The flow of powdered coal to the furnace is maintained substantially constant over a wide range of pressure conditions in the tuyeres 178 by means of a differential pressure controller 382 which maintains a constant pressure differential between the bustle pipe 182 and each distributer hopper 152 by controlling a valve (not shown) in a fines recovery line 160 from the hoppers 152. This thereby maintains pressure drop of about 3 to 6 p.s.i. across the control valve 168 in the withdrawal conduits 164. Substantially constant gas velocities are automatically maintained throughout the system irrespective of pressure changes in the distributer hopper 152. For this purpose an absolute pressure recorder 384 in the hopper system is adapted to control the supply of conveying air to various parts of the system, through pressure compensated flow controllers. These comprise ratio meters 386, 390 and 388 (Fig. 3, not shown) which through recording controllers and control valves maintain desired constant velocity flow of air to the supply conduit 150, manifold 340 and conduit 172 for injecting conveying air into the lances 176. Further pressure control means are provided for maintaining constant pressure drops through the powdered coal supply system leading to the supply conduit 150 so that a steady flow of solids is maintained independently of variations of pressure in the surge vessel 152. Automatic level controllers are provided on the various hoppers 152 &c. whereby flow is adjusted to maintain a constant level of material either by adjustable valves or by stopping and starting the pulverizing plant (Fig. 2, not shown) supplying the system. Temperature recorders are also provided and may operate alarm systems. Provision for injection of carbon dioxide into overheated regions may also be made.
Patent GB-494984-A (GB)
Title: Improvements relating to working up the product of the hydrolysis of cellulosic bodies
IPC: C13K1/02
Filed: 1937-08-09
Abstract: 494,984. Stirring-apparatus. NEU, E. Aug. 9, 1937, No. 21874. Convention date, Feb. 1, 1937. [A Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 9, 1938.] [Class 86] [Also in Groups VI and XIII] An apparatus for drying, deacidifying and degassing incompletely hydrolysed cellulosic material, comprises a heat-jacketed drum 1, Fig. 1, with two parallel stirrers 5, 5<1>, provided with blades 6 which engage with and slide over one another. The blades may be so subdivided as to form a grid or framework whereby the material is broken up. Several may be disposed in series, Fig. 5, with intermediate crushing apparatus g, g<1>.
Patent GB-664982-A (GB)
Title: Skylight construction
IPC: E04D3/08
Filed: 1949-08-24
Abstract: 664,982. Glazing skylights; ventilators. O'KEEFFE, W. F. Aug. 24, 1949 [March 12, 1949; Aug. 1, 1949], Nos. 22045/49 and 22046/49. Classes 20(iii) and 137 Skylight sash bars comprise a vertical web 21 and a horizontal footing 22 with two pairs of flanges 24, 26, upstanding from a horizontal web 23, flanges 24 being adapted to support a pair of panes 10 so that their upper surfaces are in the plane of the top of the vertical web. Self-tapping screws 28 received in a slot 27 in the web secure a longitudinal cap 29 in position. Waterproof paper, asphaltic felt &c. 31 is interposed between cap and panes. Sheet metal flashing 12 overlies the upper edge of the panes and lies under the caps 29; a lower flashing extends upwardly from a building frame into lateral grooves cut in the sash bars projecting beyond it. Side flashings 43 are also secured to the frame end under a cap 29. A glass stop member is retained in grooves cut in the bars. Instead of footing 22 a thickened portion of web 21 may be bolted to an angle or inverted T-member 51 secured to the frame structure. The lower flashing may be of aluminium sheet bent to Z-shape with a turned-over top portion 56b secured by screws 58 engaging the ends of slots 27 and weep holes 59 at the bottom angle. In a modification in which the skylight does not protrude substantially above the plane of the roof the bars are secured at their ends by T-members screwed to the side faces of the framing. An aluminium shoe also secured to the frame at the lower end of the bar has a glass supporting lip. The bars of a doublepitch skylight are secured to a vertical ridge bar of similar depth surmounted by a top flashing. A ventilator 81 may be mounted over such a skylight with sheet aluminium flashing 84; or a similar ventilator may be carried by a horizontal frame member of the building to which the top ends of the bars are also secured. In another arrangement one side wall of the ventilator is flush with a building wall, the top ends of the bars of a single pitch skylight terminating in the shaft. A skylight may be mounted on transverse framing with the top ends of the bars in the same vertical plane as a screen hood-ventilator. Adaptations fitting the skylight to corrugated metal and tar and gravel roofs are described. A cross gutter underlying a joint between two panes constituting a single span comprises a portion 104 of a member also including a backing plate 106, a partition 107 and a turned-over flashing 108 with a mastic coating 109 over plates 104, 107.
Patent GB-821253-A (GB)
Title: Improvements relating to photographic cameras
IPC: G03B13/20
Filed: 1956-07-17
Abstract: 821,253. Lens mounts for cameras. DECKEL H., and DECKEL, F. W. July 17, 1956 [July 22, 1955(2)], No. 22079/56. Classes 97(1) and 98(1) In a lens mount in which a separate cam member is interposed in the drive between a focusing ring and an axially moving rod controlling a coupled range-finder, the cam member is held against axial movement and is coupled to the focusing ring, by an arrangement which does not transmit axial movement. As shown, lens barrels 84, 88 are axially movable without rotation by means of the screw-threaded engagement of barrel 84 with tube 70 carried for rotation without axial movement by focusing ring 62. Before tightening screws 82 the angular position of the focusing screw-thread of tube 70 can be adjusted with respect to the focusing scale 214 and, on tightening screws 82, clamp ring 80 prevents further relative rotation. Bayonet lugs 54 secure part 52, which is rigidly connected to grip ring 56 of the mount, to the camera. Flange 60 extends inwardly from grip ring 56 and its inner edge provides the bearing into engagement with which focusing ring 62 is resiliently urged by plate springs 66. A coupled range finder is operated by rod 164 riding a cam surface 162 of ring 154 which is resiliently urged against, shoulder 157 by spring arms 134a. An inwardly directed pin (not shown) or ring 154 enters a slot in an axial projection (not shown) of focusing ring 62 so that the rings rotate together without any axial movement of ring 62 being transmitted to ring 154. The rim 116 of cupped diaphragm operating ring 114 is carried in a slot 117 between lens barrels 84, 88 and an arm 118 extending through arcuate slot 120 engages axial slot 122 in arm 124 of ring 126. The diaphragm is operated from scale ring 144 with which another arm 138 of ring 126 is connected. Ring 126 is independently rotatable on focusing ring 62 and maintained thereon by spring arm 134. Depth of focus indicators 212 are operated from ring 126 as disclosed in Specification 793,178. The shutter 3 is wound and released by means of shaft 9. Specifications 676,075 and 769,081 also are referred to.
Patent GB-677610-A (GB)
Title: Improvements in or relating to cloth layering machines
IPC: A41H43/00
Filed: 1949-07-25
Abstract: 677,610. Folding fabrics. BIEBER, A., BIEBER, L., and EXPRESS PATENT CO. (LIVERPOOL), Ltd. July 25, 1949, No. 22218/51. Divided out of 677,537. Class 42 (ii). In a cloth layering machine of the type described in Specifications 534,484 and 677,537, each cloth holding mechanism is adjustable in position by sliding along the table and all members and components thereoflying within the cloth laying area are at a vertical distance from the table, or are adapted to be so placed, which permits of sliding movement of the mechanism in its entirety over and away from layered material on the table in order that it may be used at another part of the table. As shown, the cloth holding mechanism of Specification 677,537 is modified in that shaft 4, carrying lifting bars 7 with cloth-holding blades 9, has a cranked medial portion 4a higher above table 1 than its end portions; also, clamping rod 31 is located between angle irons 28 raised above the table on bracket portions 6a of slide members 6. The cloth clamping mechanism of Specification 677,537 is connected by brackets 23 to bars 24 hinged at 26 to bars 25 which are bolted at 25a to angle irons 28. When the combined cloth holding and clamping apparatus is to be moved over layered material, the clamping mechanism is swung upwardly and rearwardly until buffers 24a on bars 24 rest on bars 25. The apparatus may be moved in conjunction with the reciprocable carriage by locking the apparatus thereto by hook members 34. In this position the carriage engages angled members 17 secured to lifting bars and causes blades 9 to be raised above the layered material.
Patent GB-845813-A (GB)
Title: Improvements in or relating to apparatus for measuring centreless-ground parts
Filed: 1958-07-11
Abstract: 845,813. Gauging departure from standard form. CITROEN S.A., A. July 11, 1958 [Sept. 28, 1957], No. 22322/58. Class 106 (2). For measuring the shape defect of a centreless-ground workpiece, the workpiece 7 is placed in a V-block 6 having a 90 degrees angle, and the readings of a dial gauge 1 noted, the feeler 2 of the dial gauge 1 making an angle of 22 degrees, 30 minutes with one face of the V-block and 67 degrees, 30 minutes with the other face. It is stated that the difference between the diameters of the inscribed and circumscribed circles of a section of the workpiece can be calculated and so can the actual circumscribed diameter. A scale 10 is used for setting the feeler 2 of the dial gauge approximately over the centre of the workpiece 7, according to its nominal size. The acute angles mentioned may vary by up to 5 degrees.
Patent GB-846687-A (GB)
Title: Anti-fouling compositions and materials
IPC: G01R27/12
Filed: 1958-07-11
Abstract: An anti-fouling paint for ships' bottoms contains triphenyl tin chloride.  The paint vehicle may be a solution of a butanol-fatty acid-, or oilmodified phenol-formaldehyde resin. Tri-phenyl tin chloride may also be added to polyester, epoxy and melamine resins used for constructional purposes, especially for the hulls of ships.ALSO:An anti fouling paint for ships bottoms contains tri-phenyl tin chloride.  The vehicle may contain butanol-, fatty-acid- or oilmodified phenol - formaldehyde resins, or resins formed from rosin and maleic anhydride.  Triphenyl tin chloride may also be added to plastics substances such as polyester, epoxy, and melamine resins used for constructional purposes, especially for the hulls of ships.  Specification 578,312 is referred to.
Patent GB-712741-A (GB)
Title: Improvements in or relating to baskets and the like made from cardboard or similar sheet materials
Inventor: HIGHAM WALTER ERNEST
IPC: B65D5/46
Filed: 1952-09-05
Abstract: 712,741. Boxes. DRING, Ltd., J. March 2, 1953 [Sept. 5, 1952; Dec. 5, 1952], Nos. 22421/52 and 30994/52. Class 18 A box formed from a single blank has wings 6-9 on its end walls 4, 5 carry ing lugs 15 which coincide with lugs 10, 11 on the side walls to provide handle elements. The handle is completed by a notched cardboard &c. bar 17. The wings and' lugs are stapled to the side walls. Ventilation holes 22 and flaps 12, 13 for supporting a lid may be provided. The boxes may be tapered to facilitate stacking before the element 17 is fitted. The cardboard bar may enclose a wood reinforcement.
Patent GB-408588-A (GB)
Title: Improvements in or relating to means for balancing slidable windows
IPC: E05D13/00
Filed: 1932-08-10
Abstract: 408,588. Window holders. THOMAS, E. E., Tregarth, Bath Road, Cranford, Hounslow, Middlesex, (Representative of THOMAS, S. E.), and QUICKTHO (1928), Ltd., Point Pleasant, Wandsworth, London. Aug. 10, 1932, No. 22432. [Class 44.] A vehicle sliding-window sash a is balanced and held by frictional contact in a series of defined positions by a pair of pivoted links f which are moved apart against the pressure of a spring h as the window descends, and which frictionally engage with means carried by the lower part of the sash. In the form shown, the links are in the form of flat metal bars pivoted to brackets g on the fixed frame. The links engage with grooved rollers b which are carried by a rod c mounted on the lower rail d of the sash. Recesses i are provided at defined intervals in the links to prevent any movement of the sash when subjected to vibrations. The lower ends of the links are curved outwardly so that slight inward projections k are formed which prevent unintentional lifting of the window when in the lowermost position. In a modification, the links are grooved instead of the rollers.