baber/WOPTO huggingface dataset:
Patent GB-1001970-A (GB)
Title: A method of and apparatus for producing a wired glass sheet
IPC: C03B13/12
Filed: 1961-10-06
Abstract: <PICT:1001970/C1/1> <PICT:1001970/C1/2> To form a wired glass sheet, a sheet is formed by passing molten glass 3 through a pair of rolls 1, 2, imparting a transverse convex curvature to the sheet as it leaves the rolls 1,2, introducing wire netting 7 into the curved part of the sheet so that the mesh of the netting penetrates the glass by cutting the still plastic surface of the sheet and applying pressure to the sheet to close the cuts.  As shown, pressure is applied by a second pair of rolls 5, 6, the lower roll 5 being at a level above that of the lower roll 1 to give the curved path.  The netting 7 is led over a guide roller 10, which may have helical slots around its periphery to tension the netting, which is positioned between the pairs of rolls.  Alternatively, the roll 2 may form a guide roll.  In either case, an obturating roller 11 between rolls 2, 6 forms an enclosure within the rolls and a support 4 into which an inert gas may be fed by pipes 12 to further prevent oxidation of the netting. Specification 739,573 is referred to.
Patent GB-1470262-A (GB)
Title: Thermal element arrangements for electrical circuit breakers
IPC: H01H71/16
Filed: 1975-06-13
Abstract: 1470262 Electric heating elements DORMAN SMITH SWITCHGEAR Ltd 13 June 1975 [16 Aug 1974] 36111/74 Heading H5H A bimetallic strip tripping element 18 for a thermally tripped circuit breaker is attached in heat conducting contact to a U-shaped heater element strip 16 disposed between and connected to two terminal blocks 11, there being two resistive shunts 22 connected between the terminal blocks shunting the heater element strip. A heater support plate 13 of insulating material is secured to the terminal blocks and has an aperture 15 through which the bight of the heater element strip passes. The shunts are made of a material whose temperature coefficient of resistance is less than that of the material of the heater element strip so that with higher currents the heater element strip carries a smaller proportion of the current and is so protected from damage. The heater element strip is made of copper and the shunts are made of nickel-chromium alloy. The heater element is supported by a support bracket 20 to which it is riveted by rivets which also serve to attach the bimetal strip.
Patent GB-301928-A (GB)
IPC: B21B31/18
Filed: 1928-12-07
Abstract: 301,928. Mannesmannr÷hren-Werke. Dec. 9, 1927, [Convention date]. Rolling.-The bearings of rolling mill rolls for example of pilger mills are held against axial displacement by hinged members a<1> on each side locked in place by cams or wedges or by springs or by the fluid pressure means shown. The members a<1> for the upper and lower rolls may be integral. The ram p of a fluid pressure cylinder engages a lever k<1> on a rock shaft carrying an arm k<2> for engaging the member a<1> and an arm k<3> linked to a corresponding arm for clamping the lower member a<1>. A lever i controlled from the rod n through a spring h and adjustable nut g simultaneously clamps the lower roll bearing in position.
Patent GB-1426747-A (GB)
Title: Anionic polymerization
IPC: C08F36/04
Filed: 1973-07-30
Abstract: 1426747 Organometallic compounds SOC NATIONALE DES POUDRES ET EXPLOSIFS 25 Sept 1973 [3 Oct 1972 30 July 1973] 45482/72 and 36257/73 Heading C2J [Also in Division C3] Metal complexes having a " cage " structure wherein an alkali or alkaline earth metal cation is held within a heterocyclic ring structure are obtained by contacting the metal or compound thereof (typically organometallic) with a heterocyclic complexing agent of the formula in which R 1  is hydrogen, hydrocarbyl or alkoxycarbonyl or the two R 1  together form a group of the formula A is a hydrocarbyl group, D is an oxygen, sulphur or hydrocarbyl group at least two of the groups D being oxygen or sulphur atoms and if R 1  is hydrogen, hydrocarbyl or alkoxycarbonyl, one of those groups D is oxygen or sulphur and the other is oxygen, n and p are integers from 1 to 3 and m is 2 or 3. The organometallic compound may itself be formed in situ in the presence of the heterocyclic compound, e.g. naphthyl lithium, potassium, sodium or α- methylstyrene-potassium oligomer (Examples 44 to 61) and dipotassium diphenylethylene dimer (Example 62). Typical complexes formed in other examples use various alkali metals, e.g. in the form of a film, butyllithium, and carbazylsodium, while suitable complexing agents are those of the formula e.g. if m is 2, n is 2 and p is 1 the compound 1,10 - diaza - 4,7,13,16,21 - pentaoxa - bicyclo- [8,8,5]tricosane, the compound of formula and the compound of formula i.e. 1,7,16,22-tetraaza-4,10,13,19,25,28,33,36,41, 44-decaoxatricyclo[20.8<SP>1,22</SP>.8<SP>1,22</SP>.8<SP>7,16</SP>]hexatetracontane.
Patent GB-306378-A (GB)
Title: Improvements in trolley heads for electric traction
IPC: B60L5/06
Filed: 1928-09-14
Abstract: 306,378. Taylor, C. C. G. Sept. 14, 1928. Divided application. Drawings to Specification. Trolly heads.-Electrical contact is maintained between the trolly pulley and head of the castor type by a stationary plain washer engaging the pulley and in contact with a spring washer engaging the head, both sets of washers being mounted on the pulley spindle.
Patent GB-1118064-A (GB)
Title: Catalyst for the water gas shift reaction
IPC: B01J23/86
Filed: 1966-08-15
Abstract: Hydrogen is produced by the Shift reaction in the presence of a catalyst containing Cu, Zn and Fe oxides.  Examples describe the comparative testing of catalysts using a standard gas mixture at 260 DEG  C, 1 atmosphere and G.H.S.V. of 5000.  As an optional constituent the catalyst may contain Cr2O3.ALSO:Shift reaction catalysts comprise 1-30% CuO. 1-60% ZnO and 5-98% Fe2O3. Additionally the catalyst may contain up to 5% Cr2O3.  Conventional methods of preparation are described, e.g. coprecipitation, slurrying and simple admixture of solids.  The catalyst may be tabletted to 6 mm. size. Conventional carriers for shift reaction catalysts are also described e.g. SiO2, quartz powder, Kieselguhr, Al2O3, MgO, alkaline earth carbonates, titanium dioxide or bleaching earth.  Comparative examples demonstrate the efficiency of the catalysts against those of the prior art.
Patent GB-1337024-A (GB)
Title: Fuel injection systems
IPC: F02D41/30
Filed: 1971-08-04
Abstract: 1337024 Transistor monostable circuits ROBERT BOSCH GmbH 4 Aug 1971 [5 Aug 1970] 36565/71 Heading H3T [Also in Division G1] In a fuel injection system having a plurality of injection valves and a monostable triggering stage for controlling the opening of the injection valves the monostable stage has cross coupled transistors 26, 28, a timing capacitor 30 and a resistor 33 connected to the base of the input transistor 26 and a control transistor 44 of opposite conductivity type to the other transistors 26, 28 with its emitter-collector path and emitter resistor 45 connected in parallel with the resistor 33 so as to provide additional charging current for the capacitor 30 variable in dependence on the control potential U s  applied to transistor 44. In the stable state the input transistor 26 conducts and a negative input pulse 35 causes the transistors 26 and 28 to turn off and on. This state is retained until the capacitor 30 has charged, via 33 and via 44 and 45, sufficiently for the base-emitter voltage U B  to exceed the threshold voltage of transistor 26 which turns on and this turns off transistor 28. The four cylinder, four stroke IC engine crank-shaft drives a cam (38, Fig. 1, not shown) which operates to close a contact (39) and discharge a capacitor (40) so as to produce the input pulses 35. The control voltage U s  is applied to the monostable circuit of Fig. 2 (20, Fig. 1) from a potentiometer (24) coupled to a throttle pedal (19) so as to vary the unstable period of the monostable circuit and therefore the open period of the fuel injection valves (13) in dependence on the throttle position. The output pulses from the monostable circuit switch a power transistor (18) which operates the solenoid windings of the injection valves (13).
Patent GB-1405466-A (GB)
Title: Shutters and blinds
IPC: A47H5/00
Filed: 1972-08-07
Abstract: 1405466 Roller blinds S M LORCA 7 Aug 1972 [5 Aug 1971] 36720/72 Heading A4B A roller blind or shutter comprises a drum containing a spiral spring 6, a sleeve 4 and a fixed spindle 1, opposite ends of the spring being attached to the drum and sleeve 4, and projections 7 on the sleeve being engaged in windows 3 in the spindle, and lugs (2) on the spindle ends being fixed in slots in a support. The spindle and sleeve are each bent from a sheet blank. Teeth 7 prevent rotation of the sleeve when the blind is drawn down and the spring is thus wound tighter and biases the blind to return.
Patent GB-1169098-A (GB)
Title: A Method for the Protection of Zirconium and its Alloys Against the Absorption of Hydrogen
Inventor: SCHLEICHER HANS-WALTER
IPC: B23K20/233
Filed: 1967-08-10
Abstract: 1,169,098. Welding; making composite articles; forging; extruding. EUROPEAN ATOMIC ENERGY COMMUNITY. 10 Aug., 1967 [12 Aug., 1966], No. 36728/67. Headings B3A, B3H, B3P and B3R. Zirconium, or its alloy, is protected against absorption of hydrogen by covering the metal with a binary alloy of aluminium and up to 12% silicon, heating the covered metal to a temperature between 400‹ and 650‹ C. for a period of between a few minutes at the upper end of the temperature range, and one or more days at the lower end, and bringing the aluminium alloy and zirconium into contact during heating. The zirconium and aluminium alloy may be brought into contact by rolling, extrusion drawing, welding, or metal spraying, or by a combination of two or more of these processes. To facilitate the formation of a junction between the zirconium and the aluminium alloy, the zirconium, or aluminium alloy, or both, are copper, or silver plated.
Patent GB-1059264-A (GB)
Title: A glazing unit
IPC: E06B7/28
Filed: 1963-09-18
Abstract: 1,059,264. Glazing units. E. K. CLAYTON. Dec. 18, 1964 [Sept. 18, 1963], No. 36755/63. Heading E1R. In a glazing unit comprising an envelope of transparent or translucent flexible sheet material 1 and an expander device incorporating pressure exerting means within the envelope to apply outward thrust on opposite sides of the envelope to maintain the envelope in taut condition, the torsional spring 12 is arranged between two relatively movable parts 13 of a side member, the lower one of which is secured by a rivet 14 to a sleeve 11 and at 8 to the lower horizontal frame member 1b  while the upper part 13 slides within the sleeve 11 and is connected at 9 to the upper horizontal frame member 1b. The two horizontal frame members are constituted each by two channel members 6, 7 which sandwich the envelope sheet 1 therebetween. The unit may be of triangular shape with the expander reaching from base to an apex block. In an alternative embodiment two springs are each connected at one end to a respective arm 10 and at the other end to a sleeve in which the arms can slide.
Patent GB-1504120-A (GB)
Title: Painting and like brushes
IPC: A46D1/00
Filed: 1975-08-19
Abstract: 1504120 Brushes MORGANITE MODMOR Ltd 19 Aug 1975 [22 Aug 1974] 36929/74 Heading A4K A bundle 1 of carbon fibres is embedded for part of its length in a plastics material matrix 2 to form a brush knot 4. The reinforced plastics material may be moulded to form a handle 3 or a tapered plug, a number of plugs being fitted into correspondingly shaped sockets in a brush stock. The plastics material may be a thermosetting epoxy, unsaturated polyester, phenolic or amino resin.
Patent GB-875792-A (GB)
Title: Improvements in or relating to sheet metal containers
Inventor: SKERRY REGINALD GEORGE
Filed: 1958-11-17
Abstract: 875,792. Containers with tear strips. METAL BOX CO. Ltd. Sept. 24, 1959 [Nov. 17, 1958], No. 36967/58. Class 66. A sheet metal container comprises a top 2 seamed at 6 to a cylindrical body 1, having a longitudinal seam 4 and an inwardly directed flattened bead 5, the flat sides of which lie in a plane at right angles to the side of the body, with the edge of the bead forming a mouth for the container. The top 2 is provided with a plug portion 7 connected by a flange 8 to the sides of the top and adapted for insertion into said mouth to effect closing. The body portion 9 extending between the bead 5 and seam 6 is formed at least in part by a tear strip provided with a tag 11 in the body at a position spaced from the longitudinal seam 4, a sealing medium 13 being disposed between the bead 5 and top 2 to form an air tight seal between the top and the body. Specifications 766,930 and 805,867 are referred to.
Patent GB-1337557-A (GB)
Title: Electrical protection of rectifiers
IPC: H02M7/10
Filed: 1972-08-08
Abstract: 1337557 Semiconductor devices SIEMENS AG 8 Aug 1972 [9 Aug 1971] 37031/72 Heading H1K [Also in Division H2] A rectifier arrangement comprises series connected rectifier elements within a tube 1, and a plurality of electrically conductive cylinders 5 to 9 disposed coaxially about the tube, adjacent ones being in overlapping relationship, and being insulated from each other to provide a series of capacitances of equal value connected across the rectifier elements. The cylinders 5-9 may be of conductive foil and be insulated by paper rolls 10 to 15, the end cylinders 5, 9 being connected to end contacts 3, 4 of the rectifier elements. The capacitative arrangement is stated to be a protection device to equalize voltage, up to 75 kV., along the tube.
Patent GB-1140579-A (GB)
Title: Method of making semiconductor devices and devices made thereby
Inventor: FRANKS JOSEPH
IPC: H01L21/225
Filed: 1966-08-19
Abstract: 1,140,579. Semi-conductor devices; lasers. STANDARD TELEPHONES & CABLES Ltd. 19 Aug., 1966, No. 37188/66. Headings H1C and H1K. Semi-insulating regions are produced in a body of semi-conductor material by diffusing-in a suitable impurity through a protective surface layer. A wafer (1) of N-type GaAs is lapped, polished and etched and a layer (2) of SiO 2  is deposited on one face, Fig. 1 (not shown). A layer (3) of Cr is evaporated on to the oxide layer (2) and the wafer is placed in an evacuated silica tube and heated to diffuse the Cr through the oxide into the GaAs to form a semi-insulating layer (4), having a resistivity of about 10<SP>8</SP> ohm cm., Figs. 2 and 3 (not shown). The SiO 2  layer and the excess Cr are removed by etching, Fig. 4 (not shown). The wafer is then processed in one of the following ways. FETs are produced by applying a SiO 2  mask (5) to the semi-insulating layer (4), and vapour diffusing-in Zn to form P-type source and drain regions (6 and 7) which extend completely through the semi-insulating layer (4), Figs., 5 and 6 (not shown). The oxide layer is removed, Fig. 7 (not shown), and metal electrodes 8 and 9 are deposited on the source and drain regions 6 and 7 and on the semi-insulating layer 4, Fig. 8. Electrode 9 is the gate electrode and is insulated from the current channel, which forms at the interface between the layer 4 and the substrate 1, by the semi-insulating region 4. LASERS are produced by diffusing Zn into a plurality of P-type parallel strips (12) which extend through the semi-insulating layer (4), cleaving the wafer transversely to the strips, and sawing between the strips, Figs. 10 to 12 (not shown). The devices are then mounted either by alloying between metal blocks or by means of indium pressure contacts. One contact is applied to the base of the wafer and the other to the whole of the top surface. Non-Lasing LIGHT EMITTING DIODES may be made using the same diffusion method as for lasers but different cutting and shaping steps. P.I.N. SWITCHING DIODES are produced by diffusing Zn into the whole of the surface of the semi-insulating layer, applying contacts to the top and bottom surfaces of the wafer, and then dicing. The P-type impurity may be Cd or Mg instead of Zn.
Patent GB-1084795-A (GB)
Title: Apparatus for compressing refrigerant vapour
IPC: F25B1/06
Filed: 1964-09-11
Abstract: 1,084,795. Ejectors. JOSEPH KAYE & CO. Inc. Sept. 11, 1964 [Sept. 13, 1963], No. 37321/64. Heading F1E. [Also in Division F4] An ejector 100 for compressing a refrigerant vapour comprises a tube 101 having a convergent section 112, a constant area section 114 and a divergent section 116, a first nozzle 104 having a converging-diverging internal flow path and an annular second nozzle 107, a pump being provided for supplying a liquid refrigerant stream to one of the nozzles. As shown the pump 14 supplies liquid to nozzle 104 and nozzle 107 is connected to a refrigerant evaporator by line 16 in which a vapour compressor may be provided. Operating condition and dimensions are specified.
Patent GB-929671-A (GB)
Title: Improvements in or relating to ground effect vehicles
Inventor: PRICKETT ALEXANDER WALPOLE
IPC: B60V1/16
Filed: 1960-11-01
Abstract: 929,671. Air cushion vehicles. WESTLAND AIRCRAFT Ltd. Oct. 30, 1961 [Nov. 1, 1960], No. 37421/60. Class 4. A ground effect vehicle is provided with a flexible jet-nozzle system through which air under pressure is discharged downwardly to build up, maintain and/or vary the air pressure of the ground effect air cushion or portions thereof, the system forming also a flexible barrier or barriers to the dissipation of pressurised air constituting the ground effect cushion or portions thereof associated with the barriers, and being composed of an assembly of flexible tubular components arranged in side-by-side relationship to depend downwardly from the base of the vehicle. Air is supplied from an annular duct 19 to a plurality of discrete outlets 7 each connected by a sleeve 10 to a flexible tube 11. The sleeves 10 may form a peripherally continuous manifold as shown in Fig. 5 and the flexible tubes are arranged so that when inflated they abut to form an effectively continuous skirt. The peripheral duct so formed is constrained from outward movement by a flexible annular diaphragm 13 formed with air and water vents 15 and 16 respectively. At the trailing edge of the vehicle the diaphragm 13 may be replaced by elastic members. The flexible tubes may be inclined to provide a propulsive component of thrust from the peripheral jet.
Patent GB-344849-A (GB)
Title: Improvements in or relating to apparatus for synchronizing a cinematograph projectorwith a gramophone sound-reproducer
IPC: G03B31/00
Filed: 1929-12-07
Abstract: 344,849. Maintaining equal speeds of motors. CUNNINGHAM, G., 19, Larchwood Road, New Eltham, London. Dec. 7, 1929, Nos. 37570/29 and 4812/30. [Class 38 (iii).] A sound-reproducer and a faster running electrically-driven picture-projector are synchronized by the periodic insertion of resistance into the projector motor circuit under the action of an electromagnetic regulating switch controlled by two mechanically-operated switches actuated by the sound-reproducer and picture-projector respectively, the resistance being cut in by the projector switch and cut out by the sound-reproducer switch. As shown, contacts b<2>, b<4>, Fig. 1, normally open, are closed momentarily by the action of a projection b<1> on a wheel a2 driven from the gramophone spindle a. A circuit through a solenoid d is thus closed so that an arm h<1>, h<8> is moved to close contacts h<2>, h<4> and h<6>, h<7>. The contacts h<2>, h<4> close a circuit through the solenoid d and a switch f, and the contacts h<6>, h<7> close the circuit through the motor driving the kinematograph. The speed of the motor is slightly greater than the mean speed at which the kinematograph is to work. A projection f<3> on a wheel driven by the kinematograph periodically breaks the switch f. The solenoid d is thus de-energized and the contacts h<2> h<4> and h<6>, h<7> separate. Immediately afterwards the gramophone again closes the contacts b<2>, b4, and the cycle of operations is repeated. The momentary separation of the contacts h<6>, h7 causes a sparkgap therebetween which acts as a resistance in the motor circuit to slow down the motor so that the gramophone and kinematograph run in synchronism. The lever h<1>, h<8> has a handle t so that the kinematograph motor may be controlled manually. In a modification a coil resistance is arranged in parallel with the contacts h<6> h<7> to avoid the spark-gap at the contacts. In another modification the circuits through the switch f and contacts b<2>, b<4> are in series instead of being in parallel.
Patent GB-619996-A (GB)
Title: Improvements in or relating to coils for electric circuits
IPC: H01F5/00
Filed: 1946-12-20
Abstract: 619,996. Inductances. PHILIPS LAMPS, Ltd. Dec. 20, 1946, No. 37576. Convention date, Aug. 25, 1943. [Class 38 (ii)] A coil, such as a high-frequency inductance coil, the turns of which lie in a surface generated by a straight line, is supported on two rods 1, 2 parallel to two positions of that straight line, by a tie connection between each portion of one or more turns 4 opposite the space between the rods, and a bridge-piece 6 on the side of the rods remote from the coil. The tie connection comprises a screw 7 which connects the bridge-piece 6 to a strap 5 round turn 4 of the coil, or enters a hole in turn 4, Fig. 2 (not shown). Rods 1, 2 may be of ceramic material. Loosening screw 7 makes possible positional adjustment of the coil in either direction P or Q, the former movement being allowed in the modification shown in Fig. 2 by a slot in the bridge-piece. The inductance may be varied by a slider within the coil, by varying the pitch of the winding or by varying the distance between two coaxial coils in series mounted on the same supporting rods, Fig. 3 (not shown). Two coaxial coils may be arranged one within the other and near together, the supporting rods for the inner and outer coils being inside and outside respectively.
Patent GB-336860-A (GB)
Title: Improvements in and relating to waterproof cements
IPC: C04B28/14
Filed: 1929-12-09
Abstract: 336,860. George, E. L., (S.A.I.G. Soc. Anon. Invenzioni Guadagnin). Dec. 9, 1929. Cement.-A waterproof cement for use in the foundations or outer walls of buildings, &c., is prepared by sifting and mixing together washed sand, gypsum, resin, alum, flaxseed oil and water. Example, washed sand 57 parts, gypsum 10 parts; resin 10 parts; alum 2 parts; flaxseed oil 11 parts; and water 10 parts.
Patent GB-523315-A (GB)
Title: Improvements in hose clips
IPC: F16L33/08
Filed: 1938-12-30
Abstract: 523,315. Band - clips. ROBINSON, L. Dec. 30, 1938, No. 37893. [Class 44] In a hose clip of the kind described in Specifications 203,262 and 273,279, [both in Class 44], having a worm mounted in a housing secured to one end of the band and adapted to engage teeth on the other end, the housing is substantially straight-sided in cross-section. As shown the housing 3 for the worm 4 is of rectangular form and is secured to the edge of the band 1a at A by welding. A bearing block 8 in which one end of the worm is journalled preferably conforms in shape to the housing crosssection. A triangular form of housing is described in which the edges of the housing meet below and along the central line of the band. Specifications 447,963, 523,313, 523,314 and 523,316 also are referred to.
Patent GB-327105-A (GB)
Title: Improvements in box spring mattresses and other spring upholstery
IPC: A47C23/043
Filed: 1928-12-22
Abstract: 327,105. Harrison, W. A. Dec. 22, 1928. Spring surfaces for upholstery or mattresses consist of an upper assemblage of pocketed upholstery springs 7 mounted on and connected to a lower assemblage of stronger springs 2, not enclosed in pockets, the whole structure being enclosed in a casing B with padding above and around the upper spring assembly. When applied to a well-frame mattress the canvas 17 covering the tops of the lower bank of springs is secured to a beading 19 below the level of the tops of the springs, padding 20 being inserted to fill the gap thus formed.