baber/WOPTO huggingface dataset:
Patent GB-1511239-A (GB)
Title: Driver circuit for a liquid crystal display device
IPC: H03K19/0185
Filed: 1974-07-15
Abstract: 1511239 FET switching HITACHI Ltd 7 July 1975 [15 July 1974] 31283/74 Heading H3T [Also in Division G5] A supply arrangement for a liquid crystal display device 20 comprises depletion type, and enhancement type, FET's 1, 2, resp. in series between supply points V 1 , V 2 , the former exceeding the latter in magnitude, the latter exceeding the threshold voltage of FET 1, a control signal at IN being fed directly to the FET 2, and via an inverter 3, 4 to the FET 1. The arrangement functions to provide a low impedance path to an electrode of the display device, from either of sources V 2 , or V 1 , depending on the input signal. the FET's 1, 2 functioning in push-pull, FET 2 being "on" for a high magnitude {- 10V} of input signal, FET 1 being on for a lower such magnitude {zero}. The inverter comprises depletion type FET 3 in series with enhancement type FET 4 whose source is connected to ground. The transistors are all n type, or, as shown, p type, the supplies V 1 , V 2  being, resp. - 20, - 3 volts. Circuit 30 is gated by a circuit {not shown} coupled to its input, to enable a display, or otherwise, a plurality "m" of similar circuits e.g. 30(1) coupled to corresponding display electrodes S 1 -S m  being gated with square wave pulses to determine the particular display. Further p channel enhancement FET's (9, 10) Fig. 2 (not shown) coupling the point b to further supplies V 3 , V 4 , where /V 1 / > /V 3 / > /V 4 / > /V 2 / may be provided. The supply arrangement may be in integrated circuit form using MOSFETs.
Patent GB-446019-A (GB)
Title: Improvements in or relating to poultry cages
IPC: A01K31/04
Filed: 1934-11-02
Abstract: 446,019. Poultry-houses. HUBBARD, W. S., 97, Broadoaks Road, Solihull, Warwickshire, and HUBBARD, H. G., Knockmill Farm, Kingsdown, Kent. Nov. 2, 1934, No. 31448. [Class 5 (ii)] A poultry cage or battery of cages with wire netting floor 1 has a plate 9 spaced from and under the floor for droppings, and a scraper 10 movably mounted on the plate with means for operating the scraper from the end of the cages. The scraper may be arched as shown and of scoop form with slits at its scraping edges and may be operated by wires 13. The scraper may, in a modification, be made to scrape in movement in one direction only.
Patent GB-1002460-A (GB)
Title: Organosilicon polymers
Inventor: SAUNDERS FREDERICK CHARLES
IPC: C08G73/10
Filed: 1963-08-09
Abstract: An organosilicon polymer is made by reacting pyromellitic dianhydride with a silane or siloxane containing at least 2 Si-bonded substituents, each of which comprises at least one primary amino group attached to Si through a C atom, the remaining Si-bonded substituents being monovalent hydrocarbon (saturated or unsaturated), halohydrocarbon or cyanoalkyl radicals.  The reaction is effected by heating the reactants per se or in a mutual solvent, e.g. dimethylformamide.  In a typical Example (1) a dimethylformamide solution of the dianhydride was mixed with a solution of the same solvent of 1.3-dimethyl (g -aminopropyl) disiloxane and maintained at below 50 DEG  C. under cover of an inert gas; the solvent was then distilled off and the reactants were heated to 230 DEG  C. and finally under pressure at 220 DEG  C., to yield a brown, brittle solid having the repeating unit <FORM:1002460/C3/1> Uses: As adhesives, and for coating metals.
Patent GB-653237-A (GB)
Title: A process for the manufacture of alkoxy hydrosilanes
IPC: C07F7/18
Filed: 1948-12-07
Abstract: Alkoxy hydrosilanes are prepared by reacting in the liquid phase an ester of the general formula R4-nSi(OR1)n, wherein R is an alkyl or aryl radical, R1 is an alkyl radical and n is a positive integer from 1 to 4, and a silane having bonded to the silicon atom one hydrogen substituent and at least one chlorine substituent while any unsatisfied bonds may be satisfied with alkyl or aryl radicals, whereby interchange takes place between at least one alkoxy radical of the ester and a chlorine atom of the silane. The reaction may be effected in the presence of free acid, e.g. in the presence of hydrogen chloride formed in situ.  All the chlorine substituents of the silane may be replaced by alkoxy substituents.  The silane may be of the general formula RmHSiCl3-m, wherein R is alkyl or aryl and m is an integer from 0 to 2.  In the examples, the following compounds are prepared in HSi (OC2H5)3, (C6H6)2HSiOC2H5, (CH3)3SiCl, (CH3)3SiOC2H5, CH3HSi(OC2H5)2, C6H5HSi(OC2H5)2, C11H23(C2H5)SiH(OC2H5) and ClSi(OC2H5)3.  A number of other alkoxyhydrosilanes which may be prepared are mentioned.
Patent GB-656143-A (GB)
Title: Improvements in metallurgy
IPC: C22B3/00
Filed: 1947-12-01
Abstract: Zinc is recovered from matte containing sulphides of iron and zinc by digesting the matte with aqueous sulphuric acid, controlling the digestion to produce (1) an aqueous solution of ferrous sulphate substantially free from all other elements present in the original matter, (2) hydrogen sulphide containing the sulphur combined with the iron of the matte, (3) one or more solid products containing substantially all the zinc, and separating the solution from the products.  The finely divided solid matte, obtained by smelting iron sulphide ore, may be treated at above 25 DEG  C., say 50-70 DEG  C., countercurrent in a series of vats by continuously introducing raw matte into the first vat and acid into the last vat of the series to produce a neutral, saturated solution of ferrous sulphate and a solid residue containing, besides zinc sulphide, the sulphides of cobalt, copper, gold, nickel, platinum, or silver.  Part of the zinc may be recovered as zinc sulphate from a intermediate stage. A residue containing copper and zinc sulphides may be separated either (1) by roasting in air, digesting the oxide product with sulphuric acid and precipitating the copper with hydrogen sulphide or (2) by roasting in air with sulphuric acid, forming an aqueous solution of the sulphates and precipitating the copper with hydrogen sulphide.  The hydrogen sulphide may be that from the acid matte treatment and the resulting zinc sulphate solution may be returned to the acid matte treatment. Specifications 566,375 and 656,141 are referred to.
Patent GB-837742-A (GB)
Title: Improvements in and relating to folding tables
Inventor: PARKIN JOHN
IPC: A47B3/087
Filed: 1956-10-18
Abstract: 837,742. Tables. RIDGELY TRIMMER CO. (LONDON) Ltd. Oct. 18, 1957 [Oct. 18, 1956], No. 31725/56. Class 52(3) A folding table has a top comprising two parts 1, 2 hinged together, pairs of legs 3 being pivoted to the table top near the hinge line and connected by folding stretchers 7; struts 5 pivoted near the edge of the table hook on battens 6 connecting the legs of each pair. The table folds into a box for carrying.
Patent GB-375189-A (GB)
Title: Improvements in or relating to trousers and the like
IPC: A41D1/06
Filed: 1931-11-17
Abstract: 375,189. Trousers and like garments ; hook fastenings. FOX, PARKINSON, TIDSWELL, Ltd., OWENS, R. W., and ROBERTS, W. A., Haddon Place Factory, Leeds. Nov. 17, 1931, No. 31784. [Class 141.] In trousers and like garments capable of being supported by braces or by belts, tabs 2 are attached to the trousers and carry hook fastenings 4 for engagement with the tab ends of braces, or, when a belt is to be worn, engage slots 3 in the trousers to provide loops for the belt to pass through.
Patent GB-1245942-A (GB)
Title: Improvements in or relating to builders scaffolding
Inventor: FRANCIS LESLIE WALTER
IPC: E04G1/15
Filed: 1968-07-04
Abstract: 1,245,942. Scaffold boards. KWIKFORM Ltd. 2 July, 1969 [4 July, 1968], No. 31855/68. Heading E1S. A metal scaffold board 10 has a generally channel-shaped cross-section with inwardlydirected J-sectioned. flanges 11, 12, 13 and pressed-out transverse indentations 14. Channel-sectioned end pieces 15 are welded in position. The board is preferably of mild steel with a non-skid, corrosion - resistant coating, although it may alternatively be of an aluminium alloy.
Patent GB-735354-A (GB)
Title: Improvements in and relating to solid fuel combustion appliances
Inventor: MACMILLAN HUGH
IPC: F24B7/02
Filed: 1952-12-16
Abstract: 735,354. Fireplaces. FEDERATED FOUNDRIES, Ltd. Dec. 17, 1953 [Dec. 16, 1952], No. 31867/52. Class 126. [Also in Group XIII] In a solid fuel stove or fireplace having a magazine from which fuel is fed by gravity to the combustion chamber, the combustion chamber and magazine are mountedto turn as a unit about a vertical axis, so that the magazine which is normally at the rear, can be brought to the front for charging. An open fireplace according to Specification 708,081 having an air inlet and ash discharge opening 15 of cross-section long relative to its breadth and a gas outlet 14 of similar cross-section has a fuel magazine 10 having a semi-cylindrical rear wall 18 extending between top and bottom plates 18a and 18b. The fire-brick front wall 13 of the fuel., magazine forms the heat radiating back of the open fire, and the lower part of the magazine forms a combustion chamber 12. The magazine and combustion chamber are fitted with a double-walled semi-cylindrical casing 19, 19a having an air chamber 21 at the base communicating with the space between the walls, and forming a convection air heater with an inlet 21a discharging into a hollow surround 23 with an outlet 24. The magazine and combustion chamber unit are rotatably mounted on pins 25, 26 secured to top and bottom plates 19b, 19c of the air-heating casing. In a modification, Figs. 4, 5, 6 (not shown), the fireplace is provided with doors having mica panels to close the front and form, with the heat radiating back, a flue of cross-section long relative to its breadth, as described in Specification 708,060.
Patent GB-1536050-A (GB)
Title: Automatic anti-fall devices for power-driven lifting machinery
IPC: B66D3/10
Filed: 1976-07-30
Abstract: 1536050 Catch gears EUROPE-LEVAGEMANUTENTION 30 July 1976 [30 July 1975 24 Dec 1975] 31889/76 Heading B8L [Also in Division F2] Catch gear for a power driven lifting machine comprises a self-clamping jaws block by means of which a load being lifted can be transferred to a safety cable XX<SP>1</SP> which passes through the jaws block, the latter being mounted for pivoting movement in the event of transferring the load to the safety cable whereby an electric detector 15 stops the machine. The jaws block comprises two jaws 8, 9 cam controlled together by clamping rods 10, 11 articulated at A1, A2 to a floating chassis 2 pivoted to a housing 1 at 01. The housing 1 includes apertures for supporting the load and is itself supported by a bearer cable hook engaging an anchor rod 7 which is articulated at 5 to a rod 4 pivoted at 01, the articulation shaft 5 also being received in an elongate slot P in the chassis 2. Upon loading the anchor rod 7, the rod 4 is pivoted upwardly which through a spring 6 opens the jaws 8, 9 via the pivoting rod 10, also the chassis 2 pivots anti-clockwise but is resisted by an elastic buffer 3. Upon overload or when the load is transferred to the safety cable, the buffer 3 is further compressed and a part 14 on the chassis 2 operates a detector switch 15 to de-energize the machine motor. A preclamping spring 12 acts on the clamping rod 11 to normally close the jaws 8, 9 on to the safety rope XX<SP>1</SP> when the rod 7 is not loaded. The jaw operation can be manually effected at any time by a lever 13. A circuit breaker 16 is engageable by the lower end of the anchor rod 7 when the latter lowers relative to the casing 1 due to obstruction of load lowering, whereby the machine motor is reversed. In another embodiment, the spring 6 and rod 4 are replaced by an electro-magnetic device controlled by a detector. In the embodiment of Fig. 3 to 8 (not shown), the jaws are opened by a manual setting manoeuvre, and the anchor rod is spring-biased towards circuit breaker engagement. The jaws are held in the open position by a trigger or a rotatable port which is released above a predetermined speed of movement of the jaws block along the safety cable, by a centrifugal release apparatus driven by engagement with the safety cable.
Patent GB-1121276-A (GB)
Title: Improvements relating to pressurised dispensing containers
IPC: B65D83/16
Filed: 1965-07-27
Abstract: 1,121,276. Valves. T. IKETANI. 27 July, 1965 [28 July, 1964; 8 Oct, 1964], No. 32056/65. Heading F2V. [Also in Division F1 The opening and closing of the valve 5 of a pressurized dispensing container 1 is produced intermittently and automatically by a heatresponsive device 11 which contracts when cooled by the vaporization of the sprayed liquid 2 and expands due to the ambient temperature. The device 11 may be a bimetallic spring, e.g. a coil, leaf or dish-shaped spring, or a gas or liquid filled bellows (111), Fig. 2 (not shown), ball (11<SP>11</SP>), Fig. 3 (not shown), or cylinder (11<SP>11</SP>), Fig. 4 (not shown). A spring 9 with a portion 9<SP>1</SP> which engages the valve seating member 10 delays opening and closing of the valve 5. The valve housing 4 may be placed in an envelope with means for adjusting the passage of ambient air to the heat-responsive device 11.
Patent GB-617736-A (GB)
Title: Improvements in and relating to sockets for tubular discharge lamps
IPC: H01R33/08
Filed: 1946-10-29
Abstract: 617,736. Lamp-holders. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 29, 1946, No. 32104. Convention date, Oct. 31, 1945. [Class 38 (i)] A socket 2 for a tubular discharge lamp 1, comprising a base 4 and an upright part 5 in which resilient blade contacts 6 are located behind contact-entry apertures 7, is slidably mounted in an adapter 12 in turn secured to a reflector 3. The adapter is of sheet metal and comprises a supporting plate 13, opposite sides of which have U-shaped arms 14 extending therefrom and fitting over the socket-base 4 so as to form a guide-channel for the latter, the rear of the plate 13 carrying a spring blade 15 engaging the rear of the socket to urge it into engagement with the end of the lamp.
Patent GB-1087940-A (GB)
Title: Improved carpet sweeper
IPC: A47L11/33
Filed: 1965-07-27
Abstract: 1,087,940. Carpet sweepers. S. A. BRUSH CO. Ltd. July 27, 1965 [July 30, 1964], No. 32106/65. Heading A4F. In a carpet sweeper in which a brush is disposed between front and rear wheels supporting the sweeper to be rotated thereby, the shafts 4 carrying the wheels 5 are mounted in bearings which are movable horizontally in slots (not shown) in end plates of the sweeper housing so that in any motion the drive of the brush 6 is effected principally by the leading wheels 5. The shafts 4 are urged towards the brush 6 by U-shaped springs 7 which also serve to hold dust-pans 27 in their closed positions whilst allowing them to be tilted against spring pressure when required. A brush cleaning comb 36 is mounted frictionally on each shaft 4 to rotate therewith until halted by a stop 38. The stops 38 are so arranged that when the front comb 36 is halted by its stop 38 the rear comb 36 may continue to rotate to engage the brush 6 to transfer matter therefrom into a pan 27. In a modified construction each U-shaped spring 7 is replaced by two springs one for urging a shaft 4 towards the brush 6, and the other for retaining a pan 27 in its closed position.
Patent GB-306982-A (GB)
Title: Improvements in or relating to moulds and mould-wheels for matrix-setting and line-casting machines
IPC: B41B11/52
Filed: 1927-11-29
Abstract: 306,982. Wade, H., (Standard Compositor Akt.-Ges.). Nov. 29, 1927. No Patent granted (Sealing fee not paid). Moulds for type-bar-making machines.-In mould-wheels carrying a number of moulds, in which the letters are aligned from a " universal line " situated between the upper and lower extremities of the letters, interchangeable mouldjaws are provided, and the size of each jaw in each mould is so selected as to provide the required width of mould-slot, and also to locate the slot so that the " universal line " of all the moulds is at the same distance from the centre of the wheel. The mould-jaws b, c, Fig. 1, are secured in apertures k in the mould-wheel a, the inner faces of all the apertures being at the same distance from the centre of the wheel. The thickness of the jaws of each mould are so selected that the inner faces of the jaws are at the required distance from the " universal line " for the particular size of slug to be cast. The apertures k and the jaws are stepped, as shown in Fig. 4, so as to provide a comparatively large surface for heat transmission, and to permit the surfaces of the jaws to be substantially flush with those of the wheel.
Patent GB-1472990-A (GB)
Title: Turbine blade
IPC: F01D5/08
Filed: 1974-07-19
Abstract: 1472990 Cooling gas turbine blades GENERAL ELECTRIC CO 19 July 1974 [2 Aug 1973] 32124/74 Heading FIT  A gas turbine blade 10 has an aerofoil shaped core 12 integral with a platform 18 and a dovetailed root 13, grooves 17, 19 in the upper surface of the platform 18 and in the surfaces of the aerofoil shaped core 12 respectively, being covered by a skin material, e.g. sheet metal, brazed thereto to define cooling grooves exhausting from manifolds 22 via an aperture 36, and fed via holes 34 passing through the platform. The holes communicate with gutters 33 themselves fed from reservoirs 29 over the full length of the cylindrical surfaces defined by projections 32 on the underside at the platform extending parallel to the dove-tail root formation. Jets (24), Fig. 1 (not shown), spray liquid coolant. into gutters 26 in axial root-retaining rings 27 in communication with the ends of the reservoirs 29. The cooling grooves 19 may be  disposed in a convoluted or spiral configuration.
Patent GB-865449-A (GB)
Title: Photographic exposure meter
IPC: G01J1/42
Filed: 1959-09-21
Abstract: 865,449. Photo-electric exposure meters. AGFA A.G. Sept. 21, 1959 [Sept. 26, 1958], No. 32126/59. Class 40(3) [Also in Group XX] In a photo-electric exposure meter the position of the clamped galvanometer needle is indicated by a follow-up member, connected to an indicator disc, moved by a spring mechanism set by one manual control and released by another. The setting process, initiated by pressing the member 34, Fig. 2, in the direction y, consists in moving the slide 33 to the right to be retained by the detent 50, separating the jaws 38, 40 by means of the pins 37 to liberate the end 7a of the pointer 7, rotating the disc 11 by means of the rack and pinion 35, 10 and rotation of the disc 12 by the pin and slot 43, 44, until it is held by the pawl 56, causing the follow-up pointer 42 to move to the right by means of the cam slot 45. The releasing process, initiated by pressing the member 48 in the direction x, consists in releasing the slide 33 which rotates the disc 11 with its speed regulated by the brake 63, and closing the jaws 38, 40. The lever 64 then disengages the surface 57 and allows the disc 12 to rotate and move the pointer 42 to contact the clamped needle indicating on the scale 28, Fig. 1, a light value and on the scales 29, 31 corresponding shutter speed and aperture settings. The film speed is set on one of the scales 21, 22 by adjusting the milled flange 25. In another embodiment, Fig. 5 (not shown), the brake 63 is replaced by an escapement.
Patent GB-360181-A (GB)
Title: Improvements in or relating to baths
IPC: A47K4/00
Filed: 1930-10-27
Abstract: 360,181. Baths. LEFRANC, A., Gien, Loiret, France. Oct. 27, 1930, No. 32193. [Class 26.] The space between the seat portion bl of a bath and a housing d is utilized for the reception of drawers, a cupboard, or a bidet, and a lavatory basin l is hingedly and slidably mounted over the bath. A bidet b may be formed in the seat, and brackets k may be provided.
Patent GB-410192-A (GB)
Title: Process for the manufacture of azo-dyestuffs
IPC: C09B43/00
Filed: 1932-11-14
Abstract: Azo dyes free from heavy metals but capable of forming complex metal compounds are made by treating azo dyes containing copper or chromium in complex form with an agent capable of splitting off the metal. The following methods are specified: (1) the metal is precipitated as a difficulty soluble compound, e.g. in the case of copper as the sulphide; (2) the metal compound is treated with a substance having a stronger affinity for the metal, e.g. organic polyhydroxy compounds, such as oxalic, tartaric and citric acids, or (3) with a strong acid, e.g. sulphuric, hydrochloric or formic acids.  The method is useful for making o-oxyazo dyes which are only obtained with difficulty by the usual methods, e.g. the dyestuff 4 - chlor - 2 - aminophenol --> 2 - naphthol - 6 : 8 - disulphonic acid which cannot be obtained by the usual process may be made by coppering the dye 4-chlor-2-anisidine --> 2-naphthol-6 : 8-disulpho acid and then removing the copper. Similarly dyes derived from 3 : 3<1>-dioxy-4 : 4<1>-diaminodiphenyl may be made via the corresponding alkyl ethers or acyl compounds.  The metal free compounds may be after-treated with metal compounds on the fibre.  In examples: (1) the copper compound of the above-mentioned monoazo dye is treated with sodium sulphide to remove the copper; (2) the coppered dyestuff dianisidine \sQ b -naphthyl-3-methyl-5-pyrazolone-8<1>-sulpho acid is treated as in (1); the soluble o-oxyazo dyestuff dyes cotton, silk and viscose which yield bordo-red shades on after coppering; (3) the chromium compound of the dye 5-nitro-2-aminophenol --> 2-naphthylamine-6-sulphonic acid is treated with sulphuric acid; the o-oxyazo compound dyes wool in green shades after chroming; (4) the copper compound of the dyestuff benzidine-3 : 3<1>-dicarboxylic acid \sQ phenyl J acid is boiled with sodium sulphide.  The Specification as open to inspection under Sect. 91 comprises also an example in which the copper compound of azosalicylic acid is treated with sodium sulphide or hydrochloric acid to remove the metal.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1470924-A (GB)
Title: Humidity-sensitive control unit
IPC: H01R13/70
Filed: 1975-08-01
Abstract: 1470924 Humidity-sensitive control unit HUMIDIFIER GROUP Ltd 1 Aug 1975 32218/75 Heading H1N An automatic humidity-sensitive control unit comprises a housing formed from two separable parts, a facia panel 1 and a rear part (2, Figs. 2 and 6, not shown), the panel 1 carrying a humidistat 3 with a pre-setting control 4 and a control knob 5 which controls the humidity level at which the electrical connection between contacts 6 and 7 is broken, a neon warning light 8, an on-off switch 9, a contact support 12 for a threepin socket outlet (13, Figs. 3 and 7B, not shown), and a terminal block T secured to a pillar 11. The rear part (2) has air vents (16) in top and bottom walls, the bottom also having an aperture (17) with a grommet for a mains lead and a cut-away region (19) exposing the socket 13. Parts 1 and 2 are held together by three hollow pillars (15) and self-tapping screws, and the rear wall has keyhole openings (14) for mounting on a wall. A two-way selector switch may be provided to switch a resistor or adjustable SCR into or out of circuit between the humidistat 3 and the socket outlet 13.
Patent GB-1130849-A (GB)
Title: Animal foodstuffs
IPC: A23K1/18
Filed: 1967-07-13
Abstract: 1,130,849. Animal feeds. E. KOLB. 13 July, 1967, No. 32240/67. Heading A5B. A foodstuff comprises a) from 1-500 g. per ton of an anabolic substance, b) thyroxin and/ or at least one functional derivative of thyroxin and/or iodocasein, component b) being biologically equivalent to from 10-1000 mg. per ton of L-thyroxin, and c) at nutritional component. The anabolic substance may be vitamin A, E or T (G÷tsch), orotic acid, streptogenine, an anabolic sex hormone, a polyhydric alcohol, a surface active substance or a heavy metal compound or a mixture thereof.