baber/WOPTO huggingface dataset:
Patent GB-540219-A (GB)
Title: Improvements in or relating to the waterproofing of cellulosic materials
IPC: D06M15/423
Filed: 1940-04-04
Abstract: 540,219. Crease-proofing textiles; synthetic resin compositions. COURTAULDS, Ltd., WILCOCK, C. C., and TATTERSFIELD, C. P. April 4, 1940, No. 6093. [Classes 2 (iii) and 15 (ii)] [Also in Group VIII] Cellulosic materials, e.g. cotton, linen, or regenerated cellulose are water-proofed by applying thereto a wax or fatty acid and a proportion of a condensation product of formaldehyde and cyanamide which does not exceed 6 per cent of the weight of the material. Suitable waxes are paraffin, beeswax, cerasin, Japan wax or spermaceti and suitable fatty acids are stearic and palmitic acids. The condensation product may be produced on the fibres as described in Specification 506,793, the wax or fatty acid being applied either with the formaldehyde and cyanamide or in the form of an emulsion, or to material treated with the condensation product. Alternatively the condensation product may be applied from acid solution as described in Specification 515,847, treatment with the wax or fatty acid being carried out simultaneously with, prior, or subsequently to such application. Aluminium acetate may be added to the treating liquid. Suitable wax emulsions are made by homogenizing molten paraffin wax with a hot aqueous gelatine solution or by emulsifying paraffin wax with triethanolamine stearate in water. A syntheticresin crease-resisting treatment may be used in conjunction with the water-proofing process. In example (1) slivers of staple fibre are immersed in an aqueous solution of cyanamide and formaldehyde adjusted at pH6 and ammonium sulphocyanide and a wax emulsion added. After hydro-extracting the material is heated at a temperature of 135C. 6. An aqueous solution of urea and formaldehyde adjusted to pH8 is boiled under reflux, cooled quickly and allowed to stand, after which it is diluted with water and ammonium chloride is added. An alkaline formaldehyde-cyanamide condensation product dissolved in acetic acid is added to a wax emulsion and the mixture diluted with aqueous aluminium acetate solution. "Fibro" (Registered Trade Mark) cloth is treated in a mixture of the two solutions, squeezed or hydroextracted, dried and heated at a temperature of 140C.
Patent GB-1172894-A (GB)
Title: Fluid Fuel Flow Control for Gas Burning Top Burner
Inventor: SAPONARA DOMENICK
IPC: F23Q9/10
Filed: 1967-02-09
Abstract: 1,172,894. Gas burner control valves. CALORIC INTERNATIONAL Inc. 9 Feb., 1967, No. 6253/67. Heading F4T. [Also in Division F2] A gas burner control valve comprises a housing 14 divided into compartments 12, 16 and 32, the compartment 12 being supplied from a main 10 and opening into compartment 16 via a disc valve 18 and the compartment 16 opening into compartment 32 via a passage 30 controlled by a valve 36 operated by a burner sensor 42, wherein the outlet orifice 34 from compartment 32 to the burner is so related to the flow capacity of said passage 30 that, restriction of said passage causes a reduction of pressure in said compartment 32 that auxiliary gas under pressure is delivered to the burner from a plenum chamber 25 via a tube 26 whose outlet is adjacent orifice 34. Chamber 25 is supplied with gas via an orifice 22 controlled by a screw valve 23. Sensor 42 contains a fluid, the expansion or contraction of which operates bellows 40 to actuate valve 36. In a modification, Fig. 3, the plenum chamber 25 is dispensed with, and the auxiliary gas is supplied directly from compartment 16 by a restriction tube 46, in part located outside housing 14.
Patent GB-1458359-A (GB)
Title: Method of providing an end-sealing band for collapsible tubes  of tapered configuration and tubes provided therewith
IPC: B65D35/14
Filed: 1973-02-08
Abstract: 1458359 Collapsible tubes JOHN DALE Ltd 1 Nov 1973 [8 Feb 1973] 6280/73 Heading B8D [Also in Division B2] A collapsible tube comprises a neck having a dispensing opening, and a longitudinal hollow body open at its rearward end, and is provided with a layer or band of a sealant composition forming a film on the internal surface of the hollow body at or near its rearward open end, said sealant composition comprising a vinyl resin and at least 30 wt. per cent of a paraffin wax compatible with said vinyl resin. Preferred vinyl resins are copolymers of ethylene and vinyl acetate. The coating inside the end of the tube is preferably provided by melting the sealant composition and feeding it to distributing means such as a spinning disc inserted just inside the open rearward end of the tube. The coating is then allowed to dry. Preferred tubes are frusto-conical and may be stacked inside one another.
Patent GB-406480-A (GB)
Title: Improvements relating to machines for manufacture of box ends, panels and the like
IPC: B27D5/00
Filed: 1933-03-02
Abstract: 406,480. Making box-ends, panels, &c. GERRARD INDUSTRIES, Ltd., Victoria House, Vernon Place, Southampton Row, London, WHITE, T., c/o White & Sons, Paisley, and LISTER, S., 23, Gartmore Road, Paisley, Renfrewshire. March 2, 1933, No. 6383. [Class 145 (i).] In a machine for making box ends, panels, chair bottoms &c., by assembling boards in end cleats as e.g. in Specification 296,384, [Class 145 (i)], groups of boards 1, Fig. 1, dovetailed by circular saws 4 are fed continuously by chain conveyers 2. End cleats 8 dovetailed by circular saws 9 and glued at 10 are fed, in the opposite direction, to a pair of turrets 5 which carry the cleats into the path of the advancing boards. Each cleat 8 is held by a fixed jaw 16 and a movable jaw 17, Fig. 2, pivoted to the turret at 18 ; the jaw 17 is held closed by a spring 21 but is opened for entry of the cleat 8 by a fixed cam 24 engaging a roller 20 carried by the jaw 17. Each turret is intermittently rotated by a cam-actuated pawl 12 and ratchet 6, and indexed by a cam-actuated plunger 14 engaging an index wheel 7. The cleats are thus fed round step by step to the assembly station, where they are engaged by the boards 1. The advancing boards 1 engage a roller 26 carried by the movable jaw 17, releasing the cleats which then move forward with the boards. The extent to which the boards enter the cleats is determined by adjusting the position of the roller 26 which is selectively mounted in bearings on the jaw 17. The jaw 16 is secured to the turret by screws 29. The cam 24 is so shaped that the jaws are opened while facing downwardly, so that cleats which have not been engaged by boards drop out. The turrets may be adjusted towards or away from each other.
Patent GB-893358-A (GB)
Title: A new or improved temperature control apparatus
IPC: G05D23/24
Filed: 1958-02-27
Abstract: 893,358. Automatic temperature-control systems. CROSLAND, R., G., and MOLINS MACHINE CO. Ltd. Feb. 26, 1959 [Feb. 27, 1958], No. 6387/58. Class 38 (4). In an automatic temperature-control system, variations of temperature produced by an electric heater influence a resistance thermometer in a bridge circuit supplied with pulses of half-wave rectified A.C. so that output from the bridge circuit when unbalanced in one sense starts an oscillator to switch the heater on by operating a relay. In Fig. 3 a resistor 21, variable with a temperature produced by a heater 65, e.g. in a radiation gauge, forms part of a bridge circuit supplied with unidirectional pulses through a rectifier 20. The arrangement is such that if the temperature falls below a predetermined value the output pulses from the bridge circuit are of a suitable polarity to trigger a blocking oscillator transistor 30. The resulting output from blocking oscillator transformer 29 triggers a further blocking oscillator transistor 44 to operate a relay 52 and thereby energize heater 65. Relay 52 is operated intermittently to maintain the desired temperature but operation at the pulse frequency is prevented by condenser 54. The blocking oscillators are provided with damping diodes 34a, 49 and a thermistor 32 varies the bias applied to transistor 30 to compensate for ambient temperature changes.
Patent GB-180745-A (GB)
Title: Improvements in and relating to the production of high tension discharges and high frequency oscillations
IPC: H03B11/06
Filed: 1921-02-28
Abstract: 180,745. Wilson, W. H. Feb. 28, 1921. Commutator switching-arrangements.-An apparatus for producing high-tension alternating- current from a direct-current source, comprises a tuned circuit associated conductively or inductively with the primary coils of two separate transformers, which coils are connected alternately by a commutator to the direct-current source. The alternating-current taken from the secondaries connected in series may be utilized for the production of high-tension discharges for Rontgen ray apparatus or for wireless transmission. As shown in Fig. 1, the direct-current source 5 is switched alternately into circuit with the primary coils 1, 2 by a commutator 6, the current traversing both coils in the same direction. A condenser 7 is connected across the pair of primary coils, and the secondary coils 3, 4 are connected in series to the discharge apparatus. In a modification, the condenser 7 is connected in series with a third pair of coils wound on the cores of the transformers 1, 3 and 2, 4. In a further modification shown in Fig. 4, the commutator brushes are connected adjustably to tappings on the primary coils 1, 2 and an inductance coil 10 is connected in the common branch of the supply circuits. The transformer cores may be open or closed.
Patent GB-1386701-A (GB)
Title: Vented reservoir assembly
IPC: F15B11/06
Filed: 1972-02-11
Abstract: 1386701 Fluid-pressure accumulators J H MERCIER 11 Feb 1972 [25 Feb 1971 24 Dec 1971] 6599/72 Heading F1D A reservoir assembly includes a fluid-pressure accumulator for maintaining fluid in the reservoir at atmospheric pressure comprising a casing 10 divided into chambers 25, 26 by a bladder 20, the chamber 25 communicating through a connector 22 with the atmosphere and the chamber 26 communicating with conduit 38 leading to the closed reservoir 27 by means of perforated end plates 14, 15 of the casing. The mouth 27 of bladder 20 is held between a flange of connector 22 and an end-plate 12 of the casing 10, the connector 22 having a downwardly open end 50 for preventing unnecessary accumulation of dust in chamber 25. The upper end of the casing has a flange 18 for connection to the conduit 38 which leads to the gas space 28 above the liquid L of the reservoir, thus maintaining the gas and liquid at atmospheric pressure. Alternative arrangements of the accumulator and reservoir are also described Figs. 4, 5 (not shown).
Patent GB-1148157-A (GB)
Title: Gear shifting fork
Inventor: JUNKER HEINRICH
IPC: F16H63/32
Filed: 1968-02-09
Abstract: 1,148,157. Change-speed control. METALLGESELLSCHAFT A.G. 9 Feb., 1968 [1 April, 1967], No. 6615/68. Heading F2D. A shifting fork 1 has hard metal, wear-resisting plates 3 attached to the ends which transmit the shifting motion. The plates may be soldered in position.
Patent GB-415157-A (GB)
Title: Improvements in and relating to india-rubber rolling packing rings
IPC: F16J15/10
Filed: 1933-03-04
Abstract: Indiarubber packing rings for pistons of vacuum brakes &c. are obtained by cutting up a calendered sleeve of indiarubber to form rings of square section and then depressing the rings to circular section preferably by twisting them bodily while running them along a mandrel on which they are threaded, and subsequently curing the rings in a mould.
Patent GB-589162-A (GB)
Title: Improvements in reciprocating pumps
IPC: F04B9/14
Filed: 1945-03-16
Abstract: 589,162. Reciprocating pumps. MULHERN, J. A. March 16, 1945, Nos. 6622 and 33087. [Class 102 (i)] A hand-actuated reciprocating pump in which the suction valve 10 and the delivery valve 13 have seats in a lantern ring 7 secured to the pump body. The suction valve is guided by the stem 11 sliding in a recess 12 in the delivery valve and the delivery valve is guided by a stem 15 sliding in a recess 16 in the cap 17. A single port 3 connects the pump barrel to the chamber between'the valves. A secondary delivery valve 28 loaded by a light spring 29, is fitted in the delivery pipe 6 adjacent the outlet of the delivery valve 13. An air release cock and an air vessel may be fitted to the cap 17 or the air release cock 33 may be fitted where shown in the drawing.
Patent GB-741315-A (GB)
Title: Dentifrices
IPC: A61K8/81
Filed: 1953-03-11
Abstract: A solid dentifrice (including a paste or cream) contains a polishing agent, and water-soluble polyvinylpyrrolidone as a stain remover; a liquid dentifrice contains a detergent and polyvinylpyrrolidone dissolved or dispersed in an aqueous medium. Polymers used have an average molecular weight of 5000-500,000 and are present in amount up to 50 per cent.  Polishing agents specified are calcium and magnesium carbonates, di- and tricalcium phosphates, insoluble sodium metaphosphate, aluminium hydroxide, calcium carbonate, and are present in amount up to 95 per cent. Agents such as kieselguhr, pumice and bentonite are also mentioned.  The detergents may be anionic, non-ionic or cationic; several examples thereof are specified.  Other specified ingredients include glycerine, sorbitol, glycol, propylene glycol, Irish moss, gum tragacanth, sodium carboxymethyl cellulose, starch, flavoring oils, and in the case of liquid dentifrices, water miscible alcohols.  Specification 688,164 is referred to.
Patent GB-1147592-A (GB)
Title: Improvements in or relating to electric connectors
Inventor: BELL DENNIS WILLIAM
IPC: H01R12/59
Filed: 1966-02-16
Abstract: 1,147,592. Connectors for flexible printed circuits. BELLING & LEE Ltd. 16 Feb., 1967 [16 Feb., 1966], No. 6771/66. Heading H2E. A connector for a flexible printed circuit comprises a housing 22, 23, Fig. 4, including a laminar support member 24 over which the printed circuit 20 is folded so as to provide exposed portions of a conductor on the printed circuit on opposite sides of the support member. Each conductor of a printed circuit 20, Fig. 1, engages a contact 43, Fig. 15, held in a recess in a second connector 40. The part-housings 22, 23 are located together by projections on each engaging recesses in the other, the support member 24 is located by projections on the support member engaging recesses in the parthousings 22, 23, and the two connectors are held together by pins (47, Fig. 12, not shown), passing through holes in the connector 40 and engaging detents 50 in recesses in the housings 22, 23. In an alternative arrangement for securing the connectors together, a leaf-spring (53, Fig. 16, not shown) adjacent each recess has an extended part passing through an opening in the wall of the connector and into the recess, this extended part having an aperture through which the head of a pin secured to the connector 40 passes, the arrangement being such that the leaf-spring is biased outwardly, the pin is held in the aperture and the two connectors are secured together. Polarizing means are provided by forming grooves on the support member 24 perpendicular to its edge so that parts of the support member may be punched out, then forming apertures at the corresponding points on the printed circuit, the resulting recesses engaging locating pins held in the contact receiving recesses in the connector 40.
Patent GB-683690-A (GB)
Title: Tailpipe or afterburning control for turbojet engines
IPC: F02K1/16
Filed: 1949-03-14
Abstract: 683,690. Spray burners. BENDIX AVIATION CORPORATION. March 14, 1949 [June 3, 1948], No. 6934/49. Class 75(i) [Also in Groups XXVI and XXIX] Burners.-The after-burning fuel burners 118 are each located immediately down-stream of a jet bar 120. The fuel is directed on to the bars which are shaped to cause the fuel to spread over them to their edges where it is caught by the gas stream.
Patent GB-102109-A (GB)
Title: Improved Gas-heated Boiler.
Inventor: POTTERTON THOMAS
IPC: F24C15/32
Filed: 1916-05-15
Abstract: 102,109. Potterton, T. May 15, 1916. Block-form boilers.-The bottom of a gas-heated boiler is provided with substantially parallel recesses b into each of which extends a baffle-plate c to direct the products of combustion up one side of the recess and down the other, such products then passing within a jacket d over the sides and top of the boiler to the flue g. The plates c are each bent at right-angles and bolted to the inner wall of the jacket d. Angle-irons i bolted to the bottom of the boiler rest on supports h.
Patent GB-678370-A (GB)
Title: Improvements in or relating to magnetron oscillators
IPC: H01J25/58
Filed: 1949-03-14
Abstract: 678,370. Magnetrons. M-O VALVE CO., Ltd., and WILLSHAW, W. E. June 14, 1950 [March 14, 1949], No. 7005/49. Class 39 (i). A magnetron comprises a cylindrical thermionic cathode 2 coaxially surrounded by a cylindrical anode 1 which includes, extending over less than one-third of the anode circumferentially round the cathode, one or more resonant finger or tongue members 4. The members 4 formed by cavities 5 recessed in the anode block project radially from the surface of the anode for approximately a quarter wavelength of the operative frequency. A plurality of spaced wires 9 fixed to the anode and lying parallel to its axis form a virtual anode surface at the radius of the ends of the members 4. The members 4 are shorter in the axial direction than the anode block. The anode block is closed at each end by the magnetic pole-pieces. The cathode supports and leads extend through a hole in one pole-piece.
Patent GB-415814-A (GB)
Title: Improvements in or relating to skip hoists
IPC: B66D1/26
Filed: 1933-03-08
Abstract: 415,814. Ship - hoists. MITCHELL, F. G., Albyns, near Romford, Essex. March 8, 1933, No. 7073. [Classes 78 (iii), 78 (iv), and 78 (v).] In order that the skip may remain substantially stationary at the bottom of the hoist for a short time for charging without stopping the winding gear, an eye at the end of the winding rope 4 is connected with the drum 2, Fig. 1, or between two adjacent drums 2, 2a, Fig. 6, at a point on or near the axis of the drum, and the rope is fully payed out when the skip is at the charging position. The drum is formed with spiral grooves of decreasing and increasing radius to guide the rope to and from the periphery 3 or 3<a>. As shown in Fig. 6 the rope 4 is secured to a nut 13 which normally rotates with the drums 2, 2<a>, but when the rope is fully payed out the nut travels on the screwed portion of the shaft between the drums and carries the rope from the one drum to the other, providing for a longer period for charging the skip. The charging device, such as a jigging feeder 19 Fig. 7, or the valve of a measuring chamber, may be operated by interrupted spur gearing 16 on a wheel 14 geared to the shaft 1 of the winding gear. Specification 202,701, [Class 78 (iii)], is referred to.
Patent GB-1046343-A (GB)
Title: Apparatus for separating sheets from the bottom of a stack
IPC: B65H3/08
Filed: 1964-02-20
Abstract: 1,046,343. Feeding sheets. STANDARD TELEPHONES & CABLES Ltd. Feb. 20, 1964 [Feb. 28, 1963], No. 7133/64. Heading B6B. Envelopes 12 are separated sequentially from the bottom of a stack and placed on conveyer belts 10, 11 by a suction nozzle 1 on an arm 2 which is reciprocated vertically by a crank disc 6 and rod 5. The disc 6 is connected to a drive disc 7 through a clutch 8 and a brake 9, and a cam surface on the disc 6 can operate a microswitch 13. The nozzle 1 is connected by a hose 3 to a pump. In operation, the nozzle 1 moves from a position above the belts 10, 11 to a position below the belts, and the belts remove an envelope from the nozzle as the latter passes below the belts, but the nozzle is interrupted in its downward stroke at an intermediate position wherein the envelope 12 is just above the belts. In the latter position, the cam on the disc 6 operates the switch 13 which disconnects the clutch 8 and applies the brake 9 to stop the arm 2. The arm 2 remains in this position until a signal, which may be manually operated, reconnects the clutch 8 and releases the brake 9, whereupon the arm descends, and the envelope 12 is removed from the nozzle 1. The belts 10, 11 are inclined to the base of the stack and plane of the nozzle 1, so that removal of an envelope from the nozzle is facilitated. The drive disc 7 and the pump can be operated continuously.
Patent GB-784320-A (GB)
Title: Improvements in or relating to digits applicable to vehicle registration number plates
Inventor: BLUEMEL FRANK WILLIAM
IPC: G09F7/06
Filed: 1954-03-12
Abstract: 784,320. Making number plates. BLUEMEL BROS., Ltd. March 7, 1955 [March 12, 1954], No. 7179/54. Class 83 (2). [Also in Group XVIII] A digit, Fig. 1, for a vehicle number plate is formed and provided with two locating rivets 18 in a single pressing operation, the rivets being inserted into the press tools which are adapted to form the bosses 14 for gripping the rivets.
Patent GB-665141-A (GB)
Title: Improvements in or relating to methods of manufacturing sheet metal elements for heat exchangers
IPC: B21D53/02
Filed: 1949-03-16
Abstract: 665,141. Making heat exchangers. COX, R. D. QUINTON-, and IMPERIAL 'CHEMICAL INDUSTRIES, Ltd. March 16, 1850 [March 16, 1949], No. 7206/49. Classes 83 (ii) and 83 (iv). Brazing.-A method for reinforcing the edges of sheet-metal elements for heat-exchangers comprises applying thereto reinforcing members adapted to embrace said edges, enclosing a layer of brazing medium between the members and the said edges, deforming the sheet-metal elements including the edges, e.g. corrugating, and heating to consolidate the thickened edges by brazing. In an embodiment, a sheet of light alloy coated with brazing medium is cut into narrow strips which are rolled into a V-shape and clamped over the edges of the sheet-metal by clamping rolls. The sheet with its thickened edges is corrugated and cut to suitable lengths which are then assembled with the other components of a heat exchanger and the whole assembly placed in a brazing furnace. The thickened edge may be consolidated by brazing prior to assembly with the other components of the heat exchanger and the brazing medium may be in the form of foil.
Patent GB-315010-A (GB)
Title: Improvements in fluxes for welding
IPC: B23K35/36
Filed: 1928-03-08
Abstract: 315,010. Geisel, K. March 8, 1928. Fluxes.-A flux for welding metals such as aluminium, iron, &c., comprises 90 parts of zinc chloride, 8 parts of ammonium bromide, and 2 parts of sodium fluoride.
Patent GB-544870-A (GB)
Title: Improvements in brushes and mops
IPC: A46B7/04
Filed: 1941-06-10
Abstract: 544,870. Brush handles. PROUDLOVE, N. June 10, 1941, No. 7318. [Classes 19 and 61 (i)] A twisted wire brush, mop &c. is secured to the handle by engaging the shanks a<SP>1</SP>, a<SP>2</SP> of the twisted wires in grooves in the handle C and the bent over ends a<SP>3</SP>, a<SP>4</SP> of the wires in radial holes c, a sliding sleeve D locking the parts in position. In the modification shown in Fig. 13 the wire shanks a<SP>1</SP>, a<SP>2</SP> are received in grooves in the sliding sleeve D. Fig. 8 shows a brush A fixed in similar manner to the handle C and having wire bristles b<SP>2</SP> bent to lie at an inclination to the axis.