baber/WOPTO huggingface dataset:
Patent GB-618391-A (GB)
Title: Improvements relating to the production of building slabs
IPC: C04B28/02
Filed: 1946-11-01
Abstract: Vegetable fibrous material, e.g. wood wool, is thoroughly impregnated with a petrifying liquid, e.g. a solution of sodium silicate, and then mixed with Portland or other mineral cement. The mixture is placed in a mould having a removable pallet and a piston-like cover is pressed into and secured at a desired height in the mould by means of ratchet clips or by pegs inserted in coincident holes in the cover and mould walls.  When consolidated but before initial setting of the cement, the slab is removed on the pallet and allowed to set.  If straw is used instead of wood wool, it is crushed and immersed in hot petrifying liquid.  The cover may be pressed into the mould in a press or by traversing the moulds individually between successive progressively closer horizontal rolls.
Patent GB-521247-A (GB)
Title: Improvements in and relating to refractory nozzles for ladles
IPC: B22D41/52
Filed: 1938-11-09
Abstract: 521,247. Refractory nozzles for foundry ladles. MARSHALL & CO. (LOXLEY), Ltd., T., and MARSHALL, A. Nov. 9, 1938, No. 32535. [Class 22] Refractory nozzles for foundry ladles are formed from a plastic mixture of fireclay and graphite or other carbonaceous material such as coal, anthracite, coke dust or coke breeze and are baked in such a way that the carbon is burned out of the outer laver so as to diminish the conductivity of this layer. The unbaked nozzles a are placed in trays d and the bores b and the trays are filled with a reducing agent such as coke dust, coke breeze, coal, anthracite, or coke and clay or an inert substance such as sand. The nozzles are then baked in an oxidizing atmosphere.
Patent GB-681384-A (GB)
Title: Improvements relating to cleaning devices for kerbstone reflectors
IPC: E01F9/053
Filed: 1949-12-22
Abstract: 681,384. Kerbs. HOPPERTON, J. E. April 9, 1951 [Dec. 22, 1949], No. 32816/49. Class 107 [Also in Group XVIII] A kerb having a reflector 6 is formed with a catchment area 4A which discharges down a channel 4B and in so doing washes the reflector. The kerb is formed with a transverse step to form a face 3, both longitudinal edges of the inside of the kerb being sloped to a different degree. According to the Provisional Specification a projection housing the reflector may have an inverted V-shaped roof. Further the roof may have drainholes to conduct water over the reflector.
Patent GB-1048586-A (GB)
Title: Improvements relating to electric discharge lamps
Inventor: WESTON ROBERT FREDERICK
IPC: H01J61/28
Filed: 1962-08-27
Abstract: 1,048,586. Metal-vapour lamps. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 8, 1963 [Aug. 27, 1962], No. 32820/62. Heading H1D. The filling of a high-pressure metal vapour discharge lamp includes, in addition to th metal and a rare gas, a metal halide present in sufficient quantity to form a molten pool such that, if the lamp is operated on D.C. and so disposed that the anode is below the level of the cathode, the pool contacts either the anode or its conductive support, whereby the heat dissipated at the latter promotes the evaporation of the metal halide. A mercury vapour lamp including a mixture of the iodides of cadmium, sodium, lithium, and caesium is referred to. The cathode of the lamp may be activated by metal ions-particularly caesium, sodium, or potassium-from the arc discharge.
Patent GB-979473-A (GB)
Title: Improvements in or relating to memory or switching circuits
IPC: G06F9/32
Filed: 1962-08-27
Abstract: 979,473. Digital data storage. THOMPSON RAMO WOOLDRIDGE Inc. Aug. 27,1962 [Aug. 25, 1961], No.32858/62. Heading G4C. [Also in Division H3] A memory or switching circuit Fig. 1 comprises a negative impedance element, e.g. a tunnel diode 12, connected between inpedances 14, 16 across a supply; a source of clock pulses 32 connected to one pole of the element 12, and producing clock pulses of insufficient amplitude to switch the state of the element; a unidirectionally conducting device 20 connected to the other pole of the element 12, so as to conduct clock pulses; and means for reverse biasing the device 20 such that it only conducts when a clock pulse coincides with a predetermined one of the two states of the element 12, in which case a clock pulse is fed to the output 28. The circuit provides non-destructive readout, clock pulses from Q being fed to T only when tunnel diode 12 is in its low voltage state. In Fig. 5 (not shown) a number of such circuits forming single bit stores are combined into a random-access memory matrix.
Patent GB-651129-A (GB)
Title: Improvements in or relating to hand mirrors, hair brushes and similar articles
IPC: A45D42/08
Filed: 1948-12-22
Abstract: 651,129. Hand mirrors; handled hair brushes &c. LEITER, H. Dec. 22,1948, No. 32995. '[Class 61(i)] [Also in Group XIV] In a hand mirror, hair brush or the like having an outwardly extending handle, the back is secured to the mirror or brush stock by a pair of dished metal frame members 9 having abutting rims 11 united by a flexible metal binding strip 12. The ends 13 of the latter are secured to a rod 1 rigid with the back by a wire ring 14. A tubular ornamental handle flared at 7 is passed over the rod 9 and fixed to the brush or the like by a nut screwed on the threaded end of the rod 1. A decorative layer of petit point underlying a sheet of transparent plastic material is fixed to the back of the brush or the like by means of the frames 9 and these may be ornamented to simulate filigree.
Patent GB-1403307-A (GB)
Title: Circuit for charging means for the storage of electrical energy from a dc source
IPC: H02M3/338
Filed: 1973-07-11
Abstract: 1403307 Circuits for changing capacitors COMPAGNIE GENERALE D'ELECTRICITE 11 July 1973 [11 July 1972] 33129/73 Heading H2H [Also in Division H3] A circuit for charging a capacitor 1 to a predetermined voltage comprises a D.C. source 2, an induction coil 3 having a primary winding 4 and a secondary winding 6, a transistor switch 8 connected in series with the primary winding and a control circuit 10 for opening and closing the switch. Initially, when the D.C. source 2 is connected, current is fed to the base of a transistor 17 via resistors 19, 23 and a winding 18 of an induction coil 11, thereby switching on the transistor 17. The current flowing in a winding 16 induces a voltage in a winding 12 which switches on the transistor 8 to supply current to the winding 4. The voltage induced in the winding 6 does not cause charging of the capacitor 1 due to the presence of a diode 7. The increase in the voltage across a resistor 25 is monitored by a threshold circuit 26 which supplies a trigger signal to switch on a thyristor 21 when this voltage reaches a reference voltage. The conductive thyristor switches off the transistor 17 which in turn switches off the transistor 8 causing a collapse of the current in the winding 4. The voltage induced in the winding 6 is now of the correct polarity to charge the capacitor 1 and the voltage induced in a winding 27 switches off the thyristor 21. Also, the transistor 17 remains switched off until the capacitor charging current has decayed to zero, whereupon the transistors 8, 17 are switched on and a new charging cycle commences. After a number of such cycles the capacitor reaches the predetermined voltage and a device 30 closes a switch 31 to switch off the transistor 17 and stop the charging of the capacitor.
Patent GB-1496596-A (GB)
Title: Homogeneous polyepoxide-polyanhydride compositions
IPC: C08G59/40
Filed: 1975-08-08
Abstract: 1496596 Curable anhydride/epoxy compositions GULF OIL CORP 8 Aug 1975 [29 Aug 1974 26 June 1975] 33265/75 Headings C3P and C3B A handleable thermosetting composition is formed by (A) mixing together (a) 5-80 wt. per cent of an olefinic monomer in which the double bond is the only reactive group; (b) an olefinic monoanhydride such that the molar ratio of (a) to (b) is 0À5 : 1 to 8 : 1; (c) a saturated anhydride comprising a saturated polyanhydride which is preferably a copolymer of (a) and (b) and which constitutes at least 50% of the anhydride equivalents in this component and the ratio of anhydride equivalents in (b) to the sum of anhydride equivalents in (b) and (c) being 0À2 : 1 to 1 : 1; (d) an epoxy component comprising a polyepoxide having a 1,2-epoxy equivalent value greater than one and constituting at least 50% of the epoxy equivalents of this component, and the epoxy component being such that the ratio of anhydride equivalents to epoxy equivalents being from 0À1 : 1 to 2À5 : 1; and (e) 0À01 to 10 wt. per cent of an anhydride accelerator which is inactive during the copolymerization of (a) and (b); and (B) copolymerizing (a) and (b) without reaction of the epoxy and anhydride groups. Components (c) and (d) may also comprise a saturated monohydride and a monoepoxy compound respectively. In a preferred embodiment, the components (a) to (e) are mixed with reinforcing fibres such as glass before copolymerization of (a) and (b), and in this case (a) is styrene and (b) is maleic anhydride. The polyanhydride is preferably a copolymer of the compounds used as (a) and (b), such as a copolymer of styrene and maleic anhydride. Suitable optional monohydrides are phthalic anhydride and derivatives thereof and methyl bicyclo(2.2.1)-heptane-2,3- dicarboxylic anhydride. Suitable polyepoxides are diglycidyl ethers of polyhydric phenols, glycidyl ethers of novolac resins, epoxidized oils, epoxidized butadiene and polybutadiene, and the diglycidyl ether of bisphenol A. Many other polyepoxides are also listed. Subsequent curing of the composition causes reaction of the epoxy and anhydride groups, and is effected by heating, for example during moulding.
Patent GB-1513064-A (GB)
Title: Pedal powered marine vessels
IPC: B63H1/38
Filed: 1976-08-10
Abstract: 1513064 Pedal powered vessels GEMEINES FORSCHUNGSINSTITUT ANSTALT 10 Aug 1976 [24 Sept 1975] 33295/76 Heading B7V A watercraft comprises a plurality of inflatable paddle wheels cum floats 8-11, means for driving all the floats including pedals 6, 7 and means for selectively braking at least one of the floats on either side of the craft to steer the craft. As described, the pedals 6, 7 drive four floats 8-11 via a differential and respective chain and sprocket drives connected to the forward floats 8, 9 the rear floats 10, 11 being connected to the forward ones by respective chain and sprocket transmissions. Rotation of a handwheel 5 in either direction actuates one of two brakes comprising brake shoes on quadrilateral linkages for engagement with one of the shafts of the floats 10, 11.
Patent GB-870822-A (GB)
Title: Improvements in or relating to pipe line couplings
IPC: F16L29/04
Filed: 1958-10-20
Abstract: 870,822. Pipe couplings. SPEMBLY Ltd., and THORNE, A.C. Oct. 20, 1959 [Oct. 20, 1958], No. 33401/58. Class 99(1). A pipe line coupling comprises two separable and coaxially arranged assemblies X, Y, each consisting of a tubular valve housing 1 provided at the outer end with a pipe connector 6, 14, and at the inner end with an annular valve seat 2 and enclosing a ball-shaped valve 3 adapted in the closed position to engage the valve seat and project therethrough, spring means 4 to press the ball valve against its seat, and a coupling member 17 releasably connecting the housings in coaxial alignment and adapted to open the fluid passageway through the seatings by effecting direct engagement of the ball valves. As shown, a fluid passageway is formed via holes 9 in spigots 7 in which the balls 3 are spring mounted. Sealing means is provided by adhesive 13 in a circumferential groove in body 5 which is a push fit in seating element 2. Sealing means may be provided between the two seatings in the form of a sealing ring either between the two seatings or recessed in annular grooves in the seatings. To locate the valves the balls 3 have a radial nipple 15 projecting into the hole of spigot 7 and/or a plurality of splines 16, which co-operate with the wall of the housing. The coupling member 17 may alternatively be a bayonet type fitting. The ball may be of metal or plastic.
Patent GB-776639-A (GB)
Title: Improvements in or relating to transistor amplifiers
IPC: G04C3/06
Filed: 1955-11-22
Abstract: 776,639. Transistor amplifying circuits. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Nov. 22, 1955 [Nov. 25, 1954], No. 33425/55: Class 40(6) [Also in Group XVIII] In a bias stabilization circuit, a temperature - dependent resistor 3 is included in the base circuit of a transistor 1 and connected to one terminal of the supply 2 the other end of the resistor being connected over a further resistor 4 to the other terminal. The junction of the two resistors is connected over a signal source 5 to the base of the transistor, a capacitor 6 being connected to the emitter while a load 7 having a high impedance at the signal frequency and D.C. is connected between the emitter and the supply. The resistor 3 is given a high negative temperature co-efficient so that with a rise in temperature the forward bias in the base-emitter circuit is reduced to limit the increase in emitter-collector current. In an alternative arangement the resistor 4 is given a positive co-efficient. The circuit may be employed in a clock or watch (see Group XVIII).
Patent GB-910751-A (GB)
Title: Improvements in steering mechanism for road vehicles
Inventor: ALDERTON HOWARD KENNETH
IPC: B62D3/12
Filed: 1958-10-20
Abstract: 910,751. Toothed gearing. CAM GEARS Ltd. Dec. 31, 1958 [Oct. 20, 1958], No. 33484/58. Class 80 (1). [Also in Group XXXI] The pinion 1 of a vehicle rack-and-pinion steering gear is mounted on resilient bearings 6 of rubber which urge the teeth into engagement and take up wear. The pinion spindle 9 is mounted in bushes 5 which are formed with end flanges 14 interposed between abutments 15, 16, 17 to provide additional axial resilience.
Patent GB-1533128-A (GB)
Title: Mounting apparatus for electric signals exchange equipmen
IPC: H05K7/02
Filed: 1976-08-12
Abstract: 1533128 Cable supports FUJITSU Ltd 12 Aug 1976 [25 Aug 1975] 33537/76 Heading H2C [Also in Division H1] Vertical and horizontal cable bundles 131, 131<SP>1</SP> in mounting apparatus for electric signals exchange equipment (see Division H1) are supported by a series of vertically distributed split guide rings 213 and open tray-like ducts 231. The latter have notches 504 where tagged cable ends 601 may rest prior to connection to an electrical component.
Patent GB-1482412-A (GB)
Title: Detection of movement
IPC: G01S13/56
Filed: 1973-07-13
Abstract: 1482412 Intruder alarms PEAK TECHNOLOGIES Ltd 11 July 1974 [13 July 1973] 33605/73 Heading G4N [Also in Division H4] Radar movement detection apparatus comprises a microwave transmission antenna having a radiating end and coupled to a source of microwave energy via a coupling means and two mixer-detector diodes arranged so that in use, radiation reflected from objects in front of the transmission antenna is incident thereon together with unreflected radiation from the coupling means, and the diodes produce movement-indicating output signals. The coupling means and the two diodes are arranged within the antenna cavity with the two diodes disposed between the coupling means and the radiating end and the two diodes are spaced apart by an odd number of eight wavelengths of the microwave energy, the diodes being connected to phase discriminating circuitry arranged to produce an output signal dependent on the phase difference between the two movement indicating output signals. As described, a Gunn diode oscillator assembly 2, Fig. 1, is coupled to a microwave horn-type aerial 1 by means of a probe 3. Positionted in front of the probe are first and second mixer-detector diodes D1, D2, with their cathodes connected to the horn and with their anodes connected to respective amplifiers. The diodes are so spaced from each other that their outputs differ in phase by 90 degrees, i.e. a distance of #/8 apart (# = wavelength at the operating frequency). The invention may be applied to the detection of intruders, and Fig. 4 shows an arrangement for avoiding false alarms such as might be given by a swinging door in a protected area. The amplifiers A1, A2 of the output signals from the diodes D1, D2 have frequency responses typical of a pedestrian, i.e. from 1 to 100 Hz. The amplifier outputs are connected to the respective inputs of a phase discriminator D, the output of which is between two levels under quiescent conditions but which goes positive or negative in dependance on the direction of movement in front of the aerial. Output from the discriminator D is applied to a capacitor C, oscillatory movements producing alternating positive and negative signals which cancel out, so that the charge on the capacitor remains substantially constant, Continued movement in one direction will, however, lead to a build-up of charge on the capacitor C, which is used to activate a Schmitt trigger circuit T, and energize a relay R. The discriminator D may alternatively have two outputs representative of, respectively, movement of a target towards and away from the radar. Each output is provided with a trigger circuit and a co-operating relay (Fig. 2, not shown). In a modification, the trigger circuits are connected between the amplifier outputs and the discriminator inputs (Fig. 3, not shown), and detailed circuitry is described (Fig. 5, not shown).
Patent GB-428243-A (GB)
Title: Improvements in stands or supports combined with presses for articles of clothing
IPC: A47G25/72
Filed: 1933-11-30
Abstract: 428,243. Clothes-stands. WILSON, E. L., 94, Demesne Road, Wallington, Surrey, and WELLS, E. G., Temple Wood, South Park, Gerrards Cross, Buckinghamshire. Nov. 30, 1933, No. 33606. [Class 52 (v)] [See also Group VII] In a clothes-stand having vertical members 1 carrying a trousers press and shaped at 4 to support a coat &c. the press is adapted to embrace the lower ends only of the trouser legs and comprises a plate member 6 fixed to the stand and a plate member 7 pivoted about a horizontal axis to the member 6 and resiliently urged towards it by spring arms 10. A cross member 5 at the top of the stand serves for hanging ties, collars, &c. The trousers are placed over an upper cross bar 2 and the lower portions of the legs placed between the plates 6, 7 which are recessed at 8, 9 to accommodate the turn-ups and seams. The spring arms 10 pivoted to the plate 7 and cranked at 12 are then engaged with notched members 11 fixed to the plate 6. The two arms 10 may be connected for operation operation together. The plates 6, 7 may be hinged to one another along the upper edge, the trousers being then passed down over the lower cross member 2 and upwardly over the upper cross member.
Patent GB-1446013-A (GB)
Title: Flame-retardant composite articles
IPC: B68G3/00
Filed: 1973-07-14
Abstract: 1446013 Cushions &c. DUNLOP Ltd 21 June 1974 [14 July 1973] 33663/73 Heading A4M [Also in Divisions B4 and B5] A flame-retardant composite article e.g. cushioning, comprises an inner filling of one or more combustible materials, the filling being at least partly covered by a combination of (a) one or more flexible intumescent char-forming materials and (b) one or more textile fibrous layers. The inner filling may be formed of a normally combustible cushioning material e.g. polyurethane foam, latex foam, soft fibrous felt or coiled hair. An intumescent material is defined as being a material which forms a viscous liquid froth when first exposed to a flame, the froth being converted to a rigid carbonaceous char as heating continues, examples of such materials being a polyurethane foam and a fibrous material such as wool in the form of a batting. The textile fibrous material may be a woven, knitted or non-woven fabric and is preferably such, that on burning, it leaves a charred skeleton e.g. cotton, nylon or rayon. The or each layer of textile material may be situated either inside or outside the layer of intumescent material, so that the or each layer of textile material is in contact with the intumescent material. When the layer of textile material is situated outside the intumescent material it may be decorative; alternatively, the composite article may be provided with a separate, preferably decorative covering layer. In a preferred embodiment, the textile material is made from fibres which have been coated with an intumescent material. In a further embodiment, the textile material is made from more than one set of fibres, at least one of the sets of fibres being made from intumescent material. In specific Examples, composite articles are made by covering (a) all six faces of a polyurethane foam block, firstly with a sheet of an intumescent polyurethane foam and secondly with a moquette fabric having a polyacrylonitrile warp and a cotton weft; (b) a polyurethane foam block with a laminate of the fabric and intumescent sheet of (a); (c) a polyurethane foam block, firstly with an intumescent sheet as in (a) and secondly with a damask weave rayon fabric; (d) a polyurethane foam block with a woven cotton fabric coated with an intumescent polyurethane foam; (e) a polyurethane foam block with a woven nylon fabric coated with an intumescent polyurethane foam; (e) a polyurethane foam block with a woven nylon fabric coated with an intumescent polyurethane foam; (f) a polyurethane foam block with a laminate made by stitching a wool batt between two woven cotton fabrics; (g) five faces of a polyurethane foam block with a laminate made by needling an intumescent polyurethane foam sheet between two woollen batts and applying hardboard to the sixth face of the block; and (h) covering a block of natural rubber latex foam with a laminate comprising an intumescent polyurethane foam sheet needled between two woollen batts.
Patent GB-215407-A (GB)
Title: Improvements in or relating to disinfectant supply apparatus for flushing systems
IPC: E03D9/03
Filed: 1922-12-09
Abstract: 215,407. Giles, H. R., (Isaacs, W. F., Kilburn, G. A., Kilburn, E. C., and White, S. L.). Dec. 9, 1922. Water-waste preventers, disinfecting-apparatus for. -A pump in a container 7 for disinfectant is connected adjustably by a rod 10 with the pull-lever 5 of a cistern 4. When the chain is pulled disinfectant is drawn into the pump and ejected along a pipe 9 into the cistern when the chain is released. Alternatively, the rod may be attached to the chain.
Patent GB-579308-A (GB)
Title: Improvements in radio-shielded enclosures for the ignition systems of internal combustion engines
IPC: H01T13/05
Filed: 1944-03-30
Abstract: 579,308. Cables ; two-part couplings. BYRNE, E. L. W. (Titeflex, Inc.). March 30, 1944, No. 33813/45. Divided out of 579,298. Drawings to Specification. [Classes 36 and 38 (i)] [Also in Group XXVII] In a radio-shielding means for an ignition conductor of an internal-combustion engine which has a vent to atmosphere, means is provided for controlling the vent to prevent the ingress of air when the engine is not working. The vent is controlled, as described in Specification 579,298, in conjunction with a sparking plug, by a valve mounted on a bimetallic strip, by a trapezoidal or rectangular ring made of a metal having high thermal expansion, or simply by a light, flat coiled spring.