baber/WOPTO huggingface dataset:
Patent GB-1281755-A (GB)
Title: Photographic development process
IPC: G03G13/28
Filed: 1969-07-14
Abstract: 1281755 Developing photo-conductor photographic materials ITEK CORP 14 July 1969 [1 April 1969] 35287/69 Heading G2C A metal image is produced on a photo-conductor photographic light-sensitive element by coating the exposed element with a viscous layer containing a sensitizing metal ion (e.g. containing AgNO 3 ) and contacting the element with a reducing agent (e.g. metol). The reducing agent may be incorporated in the viscous layer or be applied in a second viscous layer or the coated element may be immersed in a solution of reducing agent. Improved optical density is obtained. The viscous layer may contain as thickening agent methyl, ethyl, hydroxypropyl or hydroxypropylmethyl celluloses, gelatine, pectin, carrageenin, sorbitan monolaurate or strearate and polyoxyethylene derivatives thereof and polyacrylamide. Sensitizing ions apart from Ag are cupric, cuprous, mercury, g gold, platinum and palladium ions. The preferred photo-conductor is TiO 2  in polymethylmethacrylate or polyvinyl alcohol. Developers described include one containing ferric nitrate, ferrous ammonium sulphate, citric acid, silver nitrate and a thickener, and one containing metol, citric acid and a thickener.
Patent GB-997204-A (GB)
Title: An improved electric plug and a method of constructing same
Inventor: GREASLEY ERIC ARTHUR
IPC: H01R13/405
Filed: 1962-09-17
Abstract: 997,204. Two-part couplings. PRESSAC Ltd. June 12, 1963 [Sept. 17, 1962], No. 35289/62. Heading H2E. An electric plug whose pins 1 are in the form of flat blades each of which has at one end a tag 3 with a neck-like part 2 joining it to the blade, has a body with a wall consisting of two plates 5, 8, one having a slot 6 through which the neck can pass, and the other, 8, having a slot 9 to fit around the neck 2, the plates being joined together (Fig. 2, not shown) to lock the pin. The tag may have lateral ear portions 4 and these may be wider than the blade 1 in which case the slot 9 is formed in the plate 5 and the slot 6 in the plate 8, so that the pin is then inserted blade first in plate 8. Alternative arrangements include a twisted neck portion (Fig. 3, not shown).
Patent GB-1437723-A (GB)
Title: Containers for liquids
IPC: B64D37/14
Filed: 1973-07-24
Abstract: 1437723 Aircraft fuel tanks BRITISH AIRCRAFT CORP Ltd 23 July 1974 [24 July 1973] 35294/73 Heading B7W [Also in Division B8] An aircraft fuel tank has an inclined top wall 1 joined to a vertical wall 3 and formed with a stiffening rib 2. An air vent 4 is provided in the top of wall 3 and during filling of the tank air becomes trapped by the rib 2 in the region 5. To enable such air to escape to the region 9 and thence to vent 4 a hollow open-ended duct 6 is provided round rib 2, the duct being formed with a well 11 and a small aperture 10. As the fuel level rises the air in region 5 becomes pressurized and flows into inlet 7 of duct 6 and from outlet 8 into region 9. The aperture 10 is sized so that as the tank fills the well 11 will fill sufficiently slowly so as to allow the trapped air to escape and to allow fuel in the duct and well to drain as the tank is emptied. A further embodiment is described comprising, for a tank integral with aircraft structure and having a structural member extending into the tank, a closed container positioned beneath said structural member and having upwardly inclined conduits extending from the top and each end of the container to function in the same manner as the limbs of duct 6.
Patent GB-1533756-A (GB)
Title: Polymeric materials for clarification of oil-containing waste
IPC: B01D17/04
Filed: 1976-08-26
Abstract: 1533756 Polyamines BETZ INTERNATIONAL Inc 26 Aug 1976 [26 Aug 1975] 35472/76 Heading C3R The invention comprises polyamines obtained by reacting an epihalohydrin with a diamine of formula where R is an alkylene group having 2 to 6 carbon atoms and R<SP>1</SP> and R<SP>2</SP> are alkyl groups having 1 to 6 carbon atoms. The polymers are used to separate oil from oil-containing wastewater. In examples polymers are obtained by reacting epichlorohydrin with N,N - dimethyl- 1,3 - propane diamine and are used to treat oil-containing wastewater.
Patent GB-1052689-A (GB)
IPC: C23C8/00
Filed: 1963-08-31
Abstract: 1,052,689. Nitrided alloy steel. BRISTOL SIDDELEY ENGINES Ltd. Nov.11, 1965 [Aug. 31, 1964], No. 35544/64. Heading C7A and C7U. A steel containing in percentage by weight W 15 - 20 Cr 3 - 6  V 0À8 - 1À5 C 0À5 - 1 the balance being iron and normal incidental constituents is hardened and is then subjected to a gaseous nitriding process at 500‹-560‹C for a period of 10 to 72 hours. Hardening may be effected by air-cooling from 1260‹-1300‹C followed by one or more tempering treatments at 560‹-590‹C for at least 1 hour, while nitriding is preferably carried out at 510‹-530‹C with ammonia gas. Use of the process for producing ball and roller bearing races, wear sleeves, toothed gear wheels, turbine blades and other machine parts is referred to. Examples of incidental constituents which may be present are Si‹ - 0À5 Mn‹ - 0À5 S‹ - 0À06 P‹ - 0À04 Mo<SP>0</SP> - 1 Co<SP>0</SP> - 1À5
Patent GB-321086-A (GB)
Title: Process for photo-chemically producing printing plates
IPC: G03F7/04
Filed: 1928-12-03
Abstract: 321,086. Bekk & Kaulen Chemische Fabrik Ges., Dr., and Thimann, M. Dec. 3, 1928. Etching. - In a process of producing photomechanical printing plates by means of light sensitive chromate-colloid layers, the laid free metal is etched with acids such as lactic acid or salt solutions or mixtures such as aluminium chloride and iron chloride or iron chloride and nitric acid, the latter preferably in a highly concentrated form such as a paste made by mixing the solid chloride with nitric acid. A solution of iodine in potassium iodide may be added. For example etching means may comprise 75 parts solid iron chloride dissolved in 25 parts of water to which is added 10 parts nitric acid of specific gravity 1.4 and 1 part of a solution of iodine in potassium iodide.
Patent GB-450248-A (GB)
Title: Improvements relating to vacuum cleaners
IPC: A47L9/00
Filed: 1934-12-12
Abstract: 450,248. Brushes. CIANCHI, A., 72, Greencroft Gardens, Hampstead, London. Dec. 12, 1934, No. 35745. Drawings to Specification. [Class 19] [See also Groups XXVI and XXVIII] Rubber or felt is applied to the outside of a vacuum cleaner brush roller and to the inside of the tube on which the brush is mounted so as to reduce noise.
Patent GB-383775-A (GB)
Title: Improvements in and relating to the vulcanization of rubber
IPC: C08K5/00
Filed: 1931-12-29
Abstract: Compounds of the general formula R-NH-X-NH-R1 where R, R1, and X are aliphatic hydrocarbon residues, and R and R1 contain not less than 2 carbon atoms, or the hydrates, carbamates, or dithiocarbamates or other addition products formed by their reaction with water, carbon dioxide and carbon disulphide are used as vulcanization accelerators. Dibutylethylenediamine is prepared by (1) refluxing 2 mols. of butylamine and 1 mol. of ethylene chloride and treating the hydrochloride so obtained with caustic soda to liberate the free base; (2) heating ethylenediamine and butyl chloride at 140 DEG  C. in an autoclave and liberating the free base as in (1).  The product of example (1) contains also about 25 per cent of dibutylpiperazine which need not be separated.  Reference is made to dibutyl-ethylenediamine hydrate, carbamate and dithio-carbamate, diethyl-, dipropyl - and diheptyl - ethylenediamines, and to substitution of the ethylenediamine group by propyl-, butyl- or other aliphatic amine groups.ALSO:Compounds of the general formula R-NH-X-NH-R1 where R, R1, and X are aliphatic hydrocarbon residues, and R and R1 contain not less than 2 carbon atoms, or the hydrates, carbamates, or dithiocarbamates or other addition products formed by their reaction with water, carbon dioxide and carbon disulphide are used as vulcanization accelerators.  Dibutyl ethylene diamine is prepared by (1) refluxing 2 mols. of butylamine and 1 mol. of ethylene chloride and treating the hydrochloride so obtained with caustic soda to liberate the free base; (2) heating ethylene diamine and butyl chloride at 140 DEG  C. in an autoclave and liberating the free base as in (1).  The product of example (1) contains also about 25 per cent of dibutyl piperazine which need not, in small amounts, be separated.  An example of the properties of vulcanized rubber mixes containing dibutyl ethylene diamine hydrate, carbamate and dithiocarbamate is given.  Reference is made to diethyl, dipropyl and diheptal ethylene diamines, and to substitution of the ethylene diamine group by propyl, butyl, or other aliphatic amine groups.
Patent GB-1256137-A (GB)
Title: A demultiplexing apparatus
Inventor: OHYAMA CHISHIO
IPC: H04J3/06
Filed: 1969-07-16
Abstract: 1,256,137. Multiplex pulse code signalling. NIPPON ELECTRIC CO. Ltd. 16 July, 1969 [22 July, 1968], No. 35911/69. Heading H4L. In an arrangement for demultiplexing a plurality of low speed pulse trains such as CH1, CH2, CH3, Fig. 1, time division multiplexed bit-by-bit into a high speed pulse train with frame sync. pulses F1, F2, F3 inserted at regular intervals, the high speed pulse train is supplied via terminal 1 to a comparator D where it is compared with the output of a voltagecontrolled oscillator CG generating clock pulses at one third of the repetition frequency of the high speed pulse train to control the oscillator frequency. The input signal is also supplied to a gate G3 and via one bit delays D2, D1 to gates G2 and G1, the gates being controlled by the clock pulses from oscillator CG so that the demultiplexed signals appear at terminals 01, 02, 03. A counter P counts down the pulses from generator CG to provide a pulse whose repetition rate and period is equal to that of F1, F2 or F3 and this is compared in a comparator C2 with the output of gate G2. The result of this comparison is checked at S4 and if an out-ofsync. state is detected, the counter P is shifted to establish frame synchronization. It is also necessary to ensure that the oscillator CG is operating in the correct one of its three possible phases and this is achieved by supplying the pulses 01, 02, 03 to comparators C1, C2, C3. Each comparator generates a pulse if the frame sync. signal is present at the time slot determined by the counter P and the presence of three pulses is confirmed by circuits S1, S2, S3 when the system is synchronized. When there are only two pulses a pattern detector J detects the direction of phase error and via a shift pulse generator SG applies a corresponding correction to the oscillator CG.
Patent GB-1484194-A (GB)
Title: Border sustainer system for gas discharge panels
IPC: G09G3/294
Filed: 1974-08-15
Abstract: 1484194 Matrix displays and circuits therefor OWENS ILLINOIS Inc 15 Aug 1974 35918/74 Heading G5C Display apparatus comprises a gas discharge display/memory panel with crossed conductor arrays consisting of row and column conductors 13, 16 in a central display area V and border conductors 14, 15, 17, 18; addressing circuits 20, 22 providing write and erase pulses floating on sustain pulses from sources V SX , V SY  which are supplied with D.C. potential V SS  from an I.C. regulator V SS  REG; and sources V BX , V BY  which supply write and sustain potentials to the border conductors and receive D.C. potentials #V 1 , #V 2  above V SS  from I.C. regulator #VREG. The output of each regulator is controlled by variable resistors 42, 47 and by switches K1, K2. Opening K1 changes the output of V SS REG from 0 to V SS , opening K2 changes the output of #VREG from V SS +#V 1  to V SS  + #V 2  which respectively fire and sustain border cells. Switch K2 may be operated whenever border cells have to be ignited by a control circuit operated manually by a push button 60, by a photodetector or automatically.
Patent GB-1360826-A (GB)
Title: Method of isothermal sulphonation
IPC: C07C303/06
Filed: 1971-07-30
Abstract: 1360826 Sulphonation process LION FAT & OIL CO Ltd 30 July 1971 [31 July 1970] 35925/71 Heading C2C A method for effecting the isothermal sulphonation of a liquid organic compound comprises passing air or an inert gas as the cooling gas between a filmy stream of the liquid organic compound and an SO 3 - inert gas stream in parallel therewith, the amount of cooling gas introduced being from 2 to 12 times that of the said SO 3 -inert gas and the velocity of both gases being substantially the same and in the range of from 20-100 m./sec. Examples describe the sulphonation of (C 15 -C 18 ) α-olefins, straightchain alkylbenzenes, a (C 12 -C 13 ) synthetic alcohol and a condensation product of such an alcohol with ethylene oxide.
Patent GB-177263-A (GB)
Title: Improvements in electric controllers, starters, switches and the like
IPC: H01H19/24
Filed: 1921-09-23
Abstract: 177,263. Powell, J. O. Sept. 23, 1921. Switches, quickaction.-Relates to step-by-step actions for manually-operated controllers such as drum type motor' starters. A handle B strains one of two springs N and is fitted with hornshaped cams J which push a retaining catch E out of one of a series of stationary notches K<2>. The controller drum then quickly moves one step and the spring N force back the catch into the next notch.
Patent GB-819991-A (GB)
Title: A spindle for textile machines
IPC: D01H7/08
Filed: 1955-12-16
Abstract: 819,991. Coating with metals. PRESNA MECHANIKA NARODNI PODNIK. Dec 16, 1955 [Dec. 18, 1954; Dec. 21, 1954], No. 36218/55. Class 82(2) Also in Groups IX, XXIV and XXV] A spinning spindle having a lower stationary supporting part 1 and an upper revolving part 5, 6 is characterized in that the face of the thrust bearing surface 4 on the lower part and the outer face of the pulley 6 of the upper part are provided with a sprayed-on layer of iron or steel, 8 and 9 respectively. This enables both parts to be made of a low density metal such as silumin or aluminium.
Patent GB-1081620-A (GB)
Title: Catamenial appliances
Inventor: OTTO FREDERICK LEWIS
IPC: A61F13/22
Filed: 1963-09-16
Abstract: 1,081,620. Tampons: SOUTHALLS (BIRMINGHAM) Ltd. Sept. 16, 1964 [Sept 16, 1963], No. 36300/63. Heading A5R. A method of making a tampon comprises preparing a strip of material comprising a layer 1 of cellulose fibres and a layer 2 of cotton or man-made fibres, folding the opposite sides of the strip inwardly to form a composite strip of material, cutting a predetermined length of material from the composite strip, rolling the said length and radially compacting the roll. A cord may be incorporated during the rolling step. The cellulose fibres may be wood cellulose fibres or fibres formed from esparto grass, hemp, straw, bamboo and bagasse.
Patent GB-177601-A (GB)
Title: Improvements in lamp cases especially applicable to those used on masts on railways for signalling purposes
IPC: B61L9/02
Filed: 1920-12-30
Abstract: 177,601. Brimson, H. H. Dec. 30, 1920. Lantern cowls.-In a railway signal lamp in which the air-inlets are only in the casing below the flame, the ventilating head of the lamp comprises a tubular portion b fitting an opening a<2> in the top of the lamp casing a and provided with an annular flange b<1> having a depending skirt b<2>. A cylindrical hood d with a hinged top e is supported on legs d<1> secured to the casing a so as to leave an annular space c<1> between the skirt b<2> and its side wall, the space c<1> being less than the space between the skirt b<2> and the wall of the tube b. To prevent down-draught, a disc f is supported in the opening a<2> of the casing a by arms q. In a modification, the tube b is frusto-conical with its larger end secured in the opening a', ana the hood d is extended to contact with the casing a and perforated below the skirt b'. A thermostat as described in Specification 166,734, [Class 118 (ii), Signals], may be used with this device.
Patent GB-365083-A (GB)
Abstract: 365,083. Anti-aircraft gun sights. PRECISION MODERNE, 61, Rue Pernety, Paris. Sept. 6, 1930, No. 26700. Conven. tion date, June 26. [Class 92 (ii).] An anti-aircraft sight-corrector of the kind described in Specification 358,901. has the space polygon OBAAo of Fig. 1 reproduced in the apparatus to a scale L as shown by the figure obaa‹ in Fig. 2, thereby permitting the distance ob to be fixed in magnitude and simplifying the gearing by which the setting up in the apparatus of the distances ba, aa<0> is effected. Fig. 7 shows how the polygon is materialized in a sighting apparatus which, as described in the prior Specification, is connected to an arm 2 on the gun carriage by parallelmotion linkage 3, 4 so as to maintain with its axis vertical a cylindribal box 16 pivoted at 40 to the arm 3. In the present apparatus, the use within the box of an internally and externally threaded sleeve is avoided by providing a rotary cam 25, Fig. 9, for setting the eccentricity of the rod 23 to correspond with the vector aa‹= Vt/L, and by adjusting the vertical distance ab= p/L, by moving the box on a vertical slide 7, the motion of which is controlled bv a cam 36. The rod 23 is balljointed to a telescopic rod 41, 42 which is kept parallel to the sight 45 and represents the distance oa‹. The fixed distance between the axes 40, 44 represents the vector ob. The adjustment for the distance Vt/L is made logarithmically by adding the adjustment log V . from a scale 28 to the adjustment log t/L from a dial 32 by means of a differential gear 27. To correct for speed and direction of wind the box 16 is mounted for radial and rotational displacement in an outer frame which is rendered independent of the training movement of the gun by gearing as described in the prior Specification.
Patent GB-1443815-A (GB)
Title: Animal tattooing apparatus
IPC: A01K11/00
Filed: 1973-08-01
Abstract: 1443815 Marking animals VEREINGUNG VOLKSEIGENER BETRIEBE TIERZUCHT 1 Aug 1973 36608/73 Heading A1X Apparatus for tattooing animals consists of a conveying device 3 upon which is mounted a tattooing device 1 and a colouring device 2. The device 1 consists of numbering rollers 6 and a support anvil 5. The numbers on the rollers 6 are in the form of a plurality of tattooing pins 7 in circumferentially spaced groups around the rollers 6. A foot pedal 15 actuates the tattooing device by causing the rollers 6 to be pressed against the support 5 upon which the animals ear is placed. This action additionally causes the rollers to rotate so updating the number tattooed onto the next animal and also causes registration on a data recording device 11. The colouring device 2 has a support 16 with a seal 17 connected by a flexible tube 18 to a container 19 for the fluid. A lever arm 20 is connected via a traction cable 21 to a foot pump 23 communicating in turn via conduit 24 with the support 16. Actuation of the pump 23 creates a pressure differential across the interface of seal 17 and support 16 where the punctured ear of the animal is placed so that colouring fluid is drawn into the perforations completing the tattoo.  The colouring device may consist of a hollow sponge (30) Fig. 5 (not shown) being pressed against and rubber across the punctured ear whilst saturated with fluid. The colouring device may further be incorporated in the tattooing device by supplying the latter with a housing (35) Fig. 6 (not shown) which sealingly engages support anvil (45) and forcing fluid' through the housing and anvil interface by means of conduit (49) and (50). The anvil surface and tattoo pins may be arranged to meet at an angle other than 90‹ Fig. 9 (not shown). The numbering rollers may be replaced by interchangeable figure bars (71) Fig. 10 (not shown) when the tattoo is not required to vary between animals. These features may further exist in combination Figs. 11 to 13 (not shown) in a device which comprises a housing containing numbering rollers (78) and a housing containing figure bars (79) these housings are mounted vertically and offset by 90‹ horizontal angle about a vertical guide tube (81) around which they may pivot without relative movement, and data recording means (93) (94). The housings can be optionally pivoted into position between a sealing plate (86) provided on a lever (84) and an anvil support (87) the draw rod (83) may be actuated by foot controls and a vacuum connection (85) draws fluid into the perforations via conduit (92).
Patent GB-769230-A (GB)
Title: Improvements in or relating to combined refrigerating and water heating systems
Inventor: GRAY JOHN
IPC: F24H4/04
Filed: 1954-12-17
Abstract: 769,230. Refrigerating; heat pumps; hot water supply systems. BRENTFORD ELECTRIC Ltd. May 13, 1955 [Dec. 17, 1954], No. 36649/54. Addition to 767,847. Classes 29 and 64(1) In the heat pump of the parent Specification the valve means consists of a flexible metal bellows 14 filled with acetone or similar liquid, to which is attached a piston 15 normally closing a port 16 disposed in a housing through which the warm water from tank 2 circulates. On reaching a predetermined temperature the water causes the bellows to expand, moving piston 15 and opening port 16. The water is then circulated to a useful heat dissipator 10 such as a towel rail, radiator or the like.
Patent GB-412936-A (GB)
Title: Improvements in and connected with carrier bags, hand bags, envelopes and the like
IPC: B65D33/12
Filed: 1932-12-30
Abstract: 412,936. Carrier bags &c. WILLETTS, G. F., and WILLETTS, A. L., 16, Charterhouse Buildings, Goswell Road, London. Dec. 30, 1932, No. 36904. [Class 133.] A carrier bag, envelope, &c. is provided with a loop 7 attached to the back portion and extending when spread up to the fold of a flap 6 attached to the front, and with a longer or higher loop 9, forming a carrying handle, which is passed through the other loop and slightly expanded, causing loop 7 to become anchored in a pair of grooves or slots 10 formed in the fold of the flap. Loop 9 may be attached by being passed through the grooves 10 as shown in Fig. 2, or may be attached to the front portion as in Fig. 4. Specifications 20784/11 and 221,462, [both in Class 133], are referred to.
Patent GB-619591-A (GB)
Title: Improvements connected with ties and the like neck wear
IPC: A41D25/02
Filed: 1946-12-14
Abstract: 619,591. Neckties. OSWIN, E. Dec. 14, 1946, No. 36915. [Class 141] A made-up necktie is moulded from synthetic resin or like material and provided with rearwardly inclined extensions to which a resilient neckband can be attached. As shown, the extensions 1, adapted to be inserted under the collar, are formed integrally with the knot 2. An elastic band 4, connecting the extensions 1, is provided with a hook 5 engaging an eye 6 of wire embedded in one of the extensions. The rear of the knot is provided with a recess covered by a plate having a key-hole slot adapted to engage the collar stud in order to hold the knot in position. The invention is stated to be also applicable to bow ties.