baber/WOPTO huggingface dataset:
Patent GB-1320855-A (GB)
Title: Pressure casting machine with pressure-increase system
IPC: B22D17/32
Filed: 1971-05-03
Abstract: 1320855 Hydraulic intensifiers WOTANWERKE GmbH 3 May 1971 [2 May 1970] 12822/71 Addition to 1268006 Heading F1D [Also in Division B3] In a hydraulic intensifier as claimed in parent Specification 1268006 for increasing the hydraulic pressure in the working cylinder space 43, Fig.1, on one side of a moulding piston 42 near the end of its stroke and comprising a stepped piston 52 which when fluid-pressure is supplied through a  line 55 and a valve 100 to the larger face 53 thereof displaces a valve member against a seat 64 to cut off a low-pressure fluid supply through a line 47 to said space 43, the pressure therein then being intensified whilst the pressure in the annular chamber 58 of the intensifier cylinder 51 is maintained at atmospheric pressure, the valve 100 has a member 106, Fig.2, which is slidable in a chamber 104 to abut a seating 107 thereby isolating pressure line 55 from cylinder chamber 67, and member 106 has a shoulder 108 open to line 55 whilst chamber 104 is connected either to a further pressure source 49 or to a vent line 118 according to whether a slidable control member 113, 114 is subject to a predetermined high control pressure in a line 65 connected to the working cylinder space 43. The initial past of the working stroke of piston 42 is effected by moving a valve 45 to the right followed by moving a valve 50 to the left whereby pressure fluid passes through lines 47, 48 and apertures 63 in an extension 71 of piston 52. When pressure in 43 rises piston 52 moves to the left to seat at 64 and thus close apertures 63 thereby pressurizing the fluid in cylinder space 43.
Patent GB-500687-A (GB)
Title: Improvements in or relating to colour-photography
IPC: G03C7/30
Filed: 1938-04-29
Abstract: 500,687. Colour photography. WHITE, D. R. April 29, 1938, No. 12900. Convention date, April 30, 1937. [Class 98 (ii)] Multi-colour photographs are obtained by exposing a material having several lightsensitive layers to a part colour record, colour developing the exposed layer to produce an image in the complementary colour, and repeating 'the steps of exposing and colour developing the exposed layers to obtain the other part colour images. In an example, a base is coated with three silver halide emulsion layers, the lower one sensitized to red as with pinacyanol, the middle layer sensitized to green as with orthochrome T. or selenopseudocyanine, and the top layer not specially sensitized. A red component record is printed with red light and the exposed layer is colour developed to blue green by a developer containing diethyl paraphenylenediamine hydrochloride, 3 : 5-dibromo-a-cresol, sodium carbonate and sodium sulphite. After washing and drying the material, the green component record is copied with grean light and the layer developed with a similar developing solution containing as magenta colour formers p-nitrobenzyleyanide and phenacyl chloride. The blue component record is finally copied with blue light and developed to yellow with a developer containing alpha-chlor-ethylacetoacetate. The film is them washed, fixed and the silver removed either with Farmer's reducer or with potassium ferricyanide and sodium thiosulphate. The support may be light reflecting, the amount of silver halide in the emulsions being, e.g. one-third of amount necessary when transparent support is used. British Specification 404,856 and U.S.A. Specifications 1,939,947 and 1,976,301 are referred to.
Patent GB-986281-A (GB)
Title: Improvements in or relating to seals for sliding windows
IPC: B60J10/04
Filed: 1960-04-11
Abstract: 986,281. Glass runs. A. PLUMMER. July 11, 1961 [April 11, 1960], No. 12924/60. Heading E1J. A sliding window seal, particularly for vehicles, comprises a channel section strip 7 of synthetic resin material with lips 10, 14 extending inwardly from the sides and base respectively of the channel which resiliently engage the marginal opposite sides and edge of a sliding window 5. The limbs of the channel strip spring apart for engagement with and retention by a rigid window frame 8.
Patent GB-1203781-A (GB)
Title: Ignition distributors
Inventor: COOKSEY WILLIAM HAROLD
IPC: F02P7/063
Filed: 1967-03-20
Abstract: 1,203,781. Ignition interrupters. JOSEPH LUCAS (INDUSTRIES) Ltd. 21 Feb., 1968 [20 March, 1967], No. 12933/67. Heading H1N. In an ignition distributer, a timing plate 26 carrying the contact breaker assembly 28 and coupled to a vacuum advance unit (not shown) is constrained to move in an arcuate path about the cam shaft 10a so that the contact gap is maintained constant. The plate 26 is slidably mounted on a corrector plate 23 and is constrained to move in the required arcuate path by engagement of a pin (29), Fig. 2 (not shown) in an arcuate slot (25) of the plate 23. A radial slot 27 engaged over a guide pin 14 accommodates the required radial movement. Contact gap adjustment is obtained by adjusting screw 19 which moves the plate 23 radially of the cam shaft through arm 12 carrying the pin 14 to which the plate 23 is attached. Slot (24) moving over a fixed pin (22) on the base-plate 11 guides the plate 23 radially during contact gap adjustment.
Patent GB-844342-A (GB)
Title: Novel quinolizine derivatives and a process for the manufacture thereof
Inventor: COHEN AARON
IPC: C07D471/14
Filed: 1958-04-24
Abstract: The invention comprises compounds of the general formula: <FORM:0844342/IV(b)/1> in which R represents a phenyl, alkyl, alkenyl or alkynyl group, and the preparation thereof by reacting 2-oxo-1,2,3,4,6,7,12,12b-octahydro-indolo [[2,3-a]- quinolizine with R-Mg-Halogen or R-metal and hydrolysing the product, and, if desired, hydrogenating the product so as to reduce any multiple bond contained in the group R therein.  The products have sedative and hypotensive activity.  According to the Provisional Specification, R may represent any aryl group.
Patent GB-497091-A (GB)
Title: Improvements in or relating to electric lamp attachments
IPC: F21L4/00
Filed: 1937-05-07
Abstract: 497,091. Attaching lamps to electric batteries. FROGGATT, A. D., and SIMPLAK BATTERIES, Ltd. May 7, 1937, No. 13109. [Classes 39 (ii) and 75 (iii)] An electric lamp bracket is adapted to be attached temporarily to two or more juxtaposed batteries, the bracket being provided with a leg or support adapted to rest on or against the batteries to keep it level. In one form, an electric lamp 14 with a switch 16 is mounted in a collar 15 having a finger 22 pivoted in a fork 20 rotatable in a lug 6 on a bracket 3, Fig. 7, having a leg 4 adapted to engage in registering recesses 25 in adjacent sides of two accumulators 2 braced together by a carrier 27, engaging in recesses in the outer sides of the accumulators and provided with a handle 28. A cross-piece 7 connects two terminals and the lamp leads 18, 19 are connected to the other two terminals. In a second form, the bracket comprises a pair of spaced legs 31, Fig. 6, for engaging in registering recesses in the sides of three juxtaposed accumulators, the cross-piece 7 being omitted and the terminals connected by bridge pieces. The part 5, Fig. 6, may be longitudinally adjustable on the fork 32 by means of a pin-and-slot connection 34, 36. In other forms, the part 51 and the lamp holder socket 6, Fig. 9, are adjustable, and the bracket 5, Fig. 8, is adapted to carry two lamps and is provided with a support 39 to keep it level.
Patent GB-1372004-A (GB)
Title: Apparatus for and method of analysis of liquid samples
IPC: G01N35/02
Filed: 1972-03-21
Abstract: 1372004 Analysis apparatus PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 21 March 1972 [24 March 1971] 13163/72 Heading G1B Apparatus for analyzing liquid samles and operable manually or at least partly automatically comprises a linear conveyer 1, 3 for transporting reaction vessels 7 along a number of stations, the reaction vessels 7 being longitudinally and transversely arranged deformations in a single synthetic resin foil extending in the longitudinal direction of the conveyer, a sample station 17 provided with a closing device Fig. 4 for transferring a pre-  determined quantity of liquid from a sample vessel 31 to each of the reaction vessels, a plurality of reagent stations each of which is provided with a closing device Fig. 5 (not shown), for transferring reagent to the reaction vessels in at least one longitudinal row, and at least one measuring apparatus which may be a spectrophotometer or colorimeter 23 for performing measurements on the liquid  samples treated with reagent. The sample closing  device Fig. 4 may comprise sample vessel 31 in the shape of an injection needle removably held by electromagnetically operated clamp 39 Fig. 4, liquid being dispensed by downward movement of piston 47 under control of motor 57. Reagent is stored in cooled reaction vessels 59 Fig. 5 (not shown), and is transferred by a pump (63) through hose 65 into vessels 7. Pressure plate 75 meanwhile keeps vessels 7 pressed downwardly into thermostat bath 79. The sample-reagent mixtures may be stirred by individual stirrers 81. For automatic operation, sample vessels 31 may carry coded information in the form of a punched strip giving sample identification data and analysis. instructions, and this information is fed to electronic control unit 105. Results are printed out at 109.
Patent GB-1060925-A (GB)
Title: Growth of insulating films such as for semiconductor devices
IPC: C23C16/34
Filed: 1965-03-29
Abstract: An insulating layer of one or more of the group TiO2, BeO, ZrO2, AlN and Si3N4 is deposite on a substrate of e.g. a semi-conductor material by heating the insulating material to a temperature between 700 and 1200 DEG C. in a halogen or a hydrogen halide atmosphere that reversibly reacts with the material, and heating the substrate to a temperature between 350 DEG  and 800 DEG C., which is lower than that of the insulating material, to cause the material to deposit on the substrate. The reaction may take place in a closed chamber or an open chamber to which the gas is continuously supplied and exhausted.  The process may also be used to form capacitors, sheaths for solar cells, and tunnelling devices.
Patent GB-722623-A (GB)
Title: Improvements in or relating to the production of y-benzene hexachloride
IPC: C07C23/12
Filed: 1952-05-26
Abstract: The invention comprises the double compound of g -benzene hexachloride with dioxan, of the formula C4H8O2.2C6H6Cl6 (g ).  It also comprises a process for the production of pure g -benzene hexachloride from mixtures consisting principally of the a - and g -isomers and which contain at least 40 per cent of g -benzene hexachloride, in which such mixtures are heated with dioxan, a double compound of g -benzene hexachloride with dioxan being separated on cooling, which double compound is separated from the mother liquor and split into its components.  The total amount of dioxan employed is sufficient to combine with the g -isomer and to keep the a -isomer in solution after the cooling.  The yield of precipitated double compound can be increased by adding, during the preparation of the benzene hexachloride solution, a solvent which decreases the solubility of the double compound in the mother liquor.  Carbon tetrachloride and light petrol are specified for this purpose.  From the double compound the dioxan can be removed by distillation, preferably in vacuo.  The mother liquor, by distillation of dioxan, yields a mixture of 40 per cent g - and 60 per cent a -isomer, which can be recrystallized from methanol to give a mixture containing 70 per cent g -isomer. Alternatively, the double compound can be recrystallized from a solvent such as methanol or benzene, from which the g -benzene hexachloride separates, leaving the dioxan in solution.  In examples, mixtures of different proportions of g - and a -benzene hexachloride and dioxan are heated to effect solution, and then cooled to 10 DEG  C.  The double compound of the g -isomer and dioxan is then heated to 100-120 DEG  C. in vacuo to distil off dioxan, or is dissolved with heating in methanol from which g -benzene hexachloride separates on cooling.
Patent GB-812808-A (GB)
Title: Process for the preparation of polybutadiene-styrene-acrylonitrile graft polymers
IPC: C08F220/44
Filed: 1957-04-26
Abstract: Styrene-acrylonitrile grafted polymers of polybutadiene are made by forming an aqueous latex mixture of a latex of polybutadiene and a latex of a styreneacrylonitrile copolymer composed predominantly, e.g. 65 to 75 per cent, of styrene, mixing styrene and acrylonitrile monomers therein and heating the resulting mixture in the presence of a free-radical type polymerization catalyst, e.g. potassium and ammonium persulphate or hydrogen peroxide.  In a modification of the above process the latex mixture is formed by mixing the styreneacrylonitrile copolymer latex and the styrene and acrylonitrile monomers and then adding the mixture to the polybutadiene latex.  The latices of polybutadiene and the styrene-acrylonitrile copolymer may contain potassium oleate as an emulsifier.  The product is a mixture of a graft polymer of styrene and acrylonitrile grafted on to polybutadiene and styrene-acrylonitrile copolymer, it is thermoplastic and may be heatshaped to form protective helmets and pads, toys, food trays, boxes, luggage, door panels, window frames and in equipment which is exposed to low temperatures. Specifications 649,166 and 744,455 are referred to.
Patent GB-1360377-A (GB)
Title: Diffusion-type hydrogen meter
IPC: G01N7/10
Filed: 1973-03-20
Abstract: 1360377 Testing pipe-lines for leaks. Determination of hydrogen in a fluid stream WESTINGHOUSE ELECTRIC CORP 20 March 1973 [30 March 1972] 13315/73 Headings G1B and G1S A gas or liquid sodium flowing in a pipe 31, Fig. 1, may be by-passed through pipes 30, 33 to a reinforced closed ended tubular and readily chargeable membrane 10 connected by valves to an ion pump 20, a high-pressure ionization gauge 22, a vacuum pump 21 and a supply 25 of argon. The housing 11 also contains a temperature sensor 35 connected to a temperature controller 37, and heaters 40, 42 are provided. The membrane 10 of say nickel stainless steel or an alloy has external circular strengthening rings as shown or other reinforcement such as spiral or longitudinal ribbing, see Figs. 2, 3 and 4 (not shown) and in operation is evacuated by the pump 21 and then connected only to the conduit 31 and the ion pump 20 so that any hydrogen (H) in the sodium or other tracer in the gas may be detected and measured on a current indicator 45. The current indication may be used to control the H concentration if desired. When the membrane is disconnected to be changed a heating coil 42 is energized to raise the temperature of the sodium in the housing 11 above its melting point and argon flows from 25 to atmosphere through the disconnected pipe 14 and protects a quantity of sodium contained between 11 and 14 in a solidified state which naturally forms and isolates the membrane 10 from the outside environment. In a modification, the hydrogen is required to diffuse out of the sodium and through an isolating intermediate layer of gas such as argon and then through the membrane 10. A high-pressure ionization gauge 22 may be used to check the contamination of and calibrate the membrane 10 and also detect malfunctions of the ion pump 20. The apparatus may also be used to detect water leaking into the fluid in pipe 31 if it has means for detecting both H and O concentration and combining the detecting signals.
Patent GB-273450-A (GB)
Title: Improvements in tubular heat exchangers
IPC: F22D1/32
Filed: 1926-05-26
Abstract: 273,450. Hillier, H. May 26, 1926. Feedwater, heating. - A tubular heater comprises heating coils 6, a casing 14, and a base casting 1 carrying all branches for the ingress or egress of the heat-exchanging fluids, the ends of the coils being secured at one end to a pipe 5 attached to the base and at the other directly to the base by means of hollow connecting pieces 11 permanently secured to the ends of the coils, a bolt 12 passing through the connecting piece and the pipe or base casting. Each connecting piece may be joined to two or more coils. Specifications 2584/99 and 20468/00, [both in Class 123, Steam generators], are referred to.
Patent GB-133617-A (GB)
IPC: B25B13/50
Abstract: 133,617. Tyldesley, F. April 9, 1919. Pivoted-jaw wrenches; sliding-jaw wrenches; jaw faces. - A pipewrench comprises a movable jaw having a notched part sliding in a slot in the shank of the wrench and engaged by or gearing with a toothed wheel pivoted on the shank and forming the inner jaw. As shown, the movable jaw c has a notched or toothed shank d sliding in a slot or guide h in the shank or handle a. A wheel b journaled at c in the handle a has teeth i, Fig. 3, formed in its middle part, the outer rims being left smooth or'knurled or toothed to grip the pipe &c. The teeth i gear fully with the teeth on the shank d so that, as the wheel b is rotated by contact with the pipe &c. when the handle a is operated, it moves the jaw e and increases the grip. The absence of teeth on the outer rims of the wheel b prevents injury to the pipe &c., and the jaw e may be knurled instead of toothed at f as shown for the same purpose.
Patent GB-570950-A (GB)
Title: Anchor
IPC: B63B21/46
Filed: 1944-07-13
Abstract: 570,950. Anchors. - DIAL, G. E. July 13, 1944, No. 13390. [Class 113 (i)] The ring F of an anchor chain G is slidably mounted in a slot E which extends substantially the whole length of the shank D.
Patent GB-542021-A (GB)
Title: Improvements in air rifles, air pistols and similar pneumatic weapons
IPC: F41B11/646
Filed: 1940-08-26
Abstract: 542,021. Air guns. WEBLEY & SCOTT, Ltd., and SMALLWOOD, H. W. Aug 26, 1940, Nos. 13448/40 and 827/41. [Class 119] An air gun is provided with alternate positions of retraction for the piston in order that the energy of discharge may be adjusted according to the range required, and the sear lever is so mounted that the friction during retraction of the piston is a minimum. The invention is described as applied to an air rifle having a two sear mechanism as described in Specification 526,502. The piston 8 and rod 7 is actuated by a coiled spring 15 on discharge and the piston is retracted by the usual lever mechanism when the gun is broken so that one of two notches 7a or 7b is engaged by the projection 3a of the primary sear lever 3. This lever has its cross shaft 4 supported at its ends by springs 6 so that as the rod 7 is being retracted the sear lever moves bodily away from it under spring resistance. The primary sear lever is retained in engaged position by a lip 11a on the secondary sear lever 11 which is released by pressure on the trigger 14 so that the primary sear lever is released.
Patent GB-933792-A (GB)
Title: Pallet handling attachment for industrial lift trucks
IPC: B66F9/18
Filed: 1961-04-14
Abstract: 933,792. Lift truck attachments; tines for lifting. YALE & TOWNE MANUFACTURING CO. April 14, 1961 [Sept. 9, 1960], No. 13478/61. Classes 78 (3) and 78 (4). A pallet handling attachment mounted on the lifting carriage of a fork lift truck comprises a pair of arms 11 secured to a plate 15 which is connected, by a ball and socket joint, to an L- shaped member 23 detachably secured by lugs 27 to the lifting carriage C. To raise the attachment from the floor, the mast assembly U is tilted rearwardly so that the surface 29, Fig. 6, of the member 23 engages the lower surface of the plate 15 in which position a roller 30 mounted in a slot in the plate 15 engages a V- shaped slot 32 in the member 23 to prevent the arms 11 from slewing during raising of the lifting carriage C. In operation, the arms 11 are slid along the floor between the stringers S of the pallet P, the mast assembly U is tilted forwardly and the carriage C is lowered to rock the arms 11 about rollers 21, mounted on the arms, so that the outer ends of the arms 11 are raised. The lift truck is then backed away from the pallet to engage clips 20 on the outer ends of the arms 11 with the upper surface of the pallet and the mast assembly is tilted rearwardly, or the carriage is raised, to raise the rollers 21 from the floor so that the pallet may be dragged along, Fig. 7 (not shown).
Patent GB-1359503-A (GB)
Title: Handling and sorting devices
IPC: B65G54/02
Filed: 1971-05-06
Abstract: 1359503 Conveyer for feeding washers BADALEX Ltd 2 May 1972 [6 May 1971] 13528/71 Heading B8A Washers fed from a vibratory bowl 10 are accelerated and separated in a channelled guide 14 by the action of a magnetic field generated by an electromagnet 18 surrounding a magnetic core 17 connected to pole members 15, 16. Each washer is then successively engaged by a reciprocating discharge member 28 operated by a ram 23. The magnetic field may be uniform, but it may also be produced by an alternating or pulsating current. A circuit is described (Fig. 4, not shown) for producing a variable combination of unidirectional and pulsating currents. In this latter arrangement there is a separate electromagnet 18 respective to each polepiece (Fig. 3, not shown).
Patent GB-828011-A (GB)
Title: Moulding
Inventor: FOTI ERIC ST JOHN
IPC: B29C45/14
Filed: 1957-04-29
Abstract: Injection moulding apparatus comprises a flexible bag constituting or forming part of the female part of the mould, and means for pressurizing the interior of the bag.  A reinforcement such as glass fibre is distributed over the male mould member, the bag inflated to hold the reinforcement in position, and a thermosetting polyester or epoxy resin injected into the closed mould.
Patent GB-542334-A (GB)
Title: Improvements relating to rotary fluid pumps
IPC: F04B23/10
Filed: 1940-08-30
Abstract: 542,334. Rotary pumps. IFIELD, R. J. Aug. 30, 1940, No. 13637. [Classes 8 (i) and 102 (i)] [Also in Group XXIX] A rotary pump or motor for liquid or gaseous fluids comprises a swash-plate or like abutment which reciprocates hollow plungers m in bores l formed around the axis of a rotary cylinder block d, the bores being inclined at an angle of about 15 degrees to the axis of rotation so that the inner ends of the bores are situated nearer the axis than the outer ends whereby the outward movement of the plunger, and the inflow of fluid, is assisted by centrifugal force. One end face of the cylinder block contacts with a complementary face e on the hollow body part a so that the open inner ends n of the bores move over arcuate fluid inlet and outlet ports f, h, in the body part. The open inner ends of the bores are of smaller diameter than the plungers, and helical compression springs o are engaged within the bores and the plungers to press the outer ends of the plungers against an inner part s of the abutment which is rotated relative to an. outer supporting part q. The outer ends of the plungers are conical or rounded and engage a rounded or-conical concave face u on the inner part s of the abutment. The stroke of the plungers m may be varied automatically by means of a plunger w acting against the action of a spring-pressed plunger 2 to tilt the abutment q s about its trunnion r. The plunger w is subjected to,delivery pressure by means of a passage y leading from the outlet port h to a chamber x which may also be connected by a connection z to a pressure gauge. The plunger 2 is acted upon by a spring 3 in a chamber 4 which may be connected by a connection 5 to a pipe supplying lubricating oil which passes into the hollow body a by means of a passage 6. This rotary pump may also be combined with a centrifugal pump by connecting the inlet port f with a passage 10 and an axial bore 9 in the body part the bore 9 communicating with an axial bore 7 formed in the rotary cylinder block d and communicating by radial passages 8 to a chamber 11 having an outlet 12 connected to a governor or other mechanism.