baber/WOPTO huggingface dataset:
Patent GB-1341615-A (GB)
Title: Axially fixed homokinetic coupling
Inventor: ORAIN M
IPC: F16D3/205
Filed: 1971-10-28
Abstract: 1341615 Universal joints GLAENZER SPICER 28 Oct 1971 [6 Nov 1970] 50164/71 Heading F2U A universal joint comprising on one shaft 3 three radial arms 5 each mounting a roller 6 engaging a straight groove 2a in a socket 2 on the other shaft 1, is prevented from axial movement by a part-spherical casing 7 on the socket engaging a part-spherical flange 8a on a collar 8 on the shaft 3 and mating curved surfaces on the shaft end 3a and a piece 9 urged by a spring 10 in the socket against the shaft end 3a. Play f, f<SP>1</SP> is allowed to enable the joint to rotate. Should the fluid tightness between parts 7a, 8a not be sufficient it may be supplemented either by a boot 11 as shown or another collar on the shaft 3 with a flange parallel to the flange 8a on the other side of the part 7a, Fig. 3 (not shown).
Patent GB-1362055-A (GB)
Title: Method of sewing hair-end meshes for wig making
IPC: D05B27/04
Filed: 1971-10-28
Abstract: 1362055 Tufting ASAHI KASEI KOGYO KK 28 Oct 1971 [27 Feb 1971] 50208/71 Heading D1G Hair meshes are sewn, to form a wig, by employing a twin needle sewing machine having a presser foot 3 and a serrated feed dog 4, a buffer band 7 of a width narrower than the distance between the needles 2 being interposed between the meshes 9 being sewn and the presser foot, the sewing being carried out while moving the band in the same direction as the meshes being sewn to avoid damaging the meshes. A guide 5, which may be of PVC, for the band 7 is provided on the presser foot, the band passing therethrough, over a feed roller 8 and through a further guide 6.
Patent GB-1118760-A (GB)
Title: A process for making organic latices
IPC: C08F2/22
Filed: 1966-11-09
Abstract: An ethylenically unsaturated monomer is polymerized in an aqueous medium containing a free radical catalyst and a colloidal suspension of a silsesquioxane having the unit general formula RSiO3/2, wherein R is a monovalent hydrocarbon or halohydrocarbon radical having 1 to 5 carbon atoms or a phenyl radical, said silsesquioxane having a particle size in the range 10 to 1000 <\>rA.  In Examples 1 to 3, 5 and 6, methyl methacrylate, ethyl acrylate or styrene is polymerized in an emulsion containing methyl silsesquioxane and H2O2. Other combinations monomer, silsesquioxane and catalyst exemplified are (4) ethyl acrylate, phenyl silsesquioxane and H2O2; (7) styrene, vinyl silsesquioxane and azobisisobutyronitrile; (8), (9) and (10) styrene, methyl silsesquioxane and ammonium persulphate and (11) methyl methacrylate, vinyl silsesquioxane and H2O2.  Mixtures of butadiene and styrene and of vinyl chloride and isoprene are other preferred monomers.
Patent GB-1287618-A (GB)
Title: Reinforcing bars for concrete
Inventor: BANNISTER JOHN LLOYD
IPC: E04C5/03
Filed: 1969-10-14
Abstract: 1287618 Concrete reinforcing bars GKN (SOUTH WALES) Ltd 7 Jan 1971 [14 Oct 1969] 50353/69 Heading E1K A concrete reinforcing bar, Figure 2, which has been formed by twisting a bar blank about its axis, has two series of short ribs 12, 13 arranged in two helical zones separated by lands 14. The ribs are arranged so that, in the developed view of each zone shown in Figures 4 and 5, the centre lines 23, 32 of the ribs (or the tangents at the mid-points of the centre-lines) are inclined at between 35‹ and 75‹ to lines 25, 33 parallel to the longitudinal axis of the bar. If the developed views are superimposed, then each rib of one series is crossed by at least one rib of the other series. Furthermore the cross-section of the bar is such that, as shown in Figure 3, the ratio of the diameter 17 of a circumscribing circle to the minimum dimension 18 of the section is not greater than 1.25. Other preferred dimensional characteristics of the bar are referred to in the Specification.
Patent GB-1111866-A (GB)
Title: Etching cement
IPC: B28B7/36
Filed: 1965-11-26
Abstract: 1,111,866. Moulding cement with surface etching. I. NORVICK. 25 Nov., 1966 [26 Nov., 1965], No. 50447/65. Heading B5A. Cement with an etched surface is produced by placing in a mould a pad of absorbent material carrying a water-soluble substance which inhibits the setting of cement, placing cement mix in the mould, allowing the uninhibited cement to set, removing the absorbent pad and removing the unset concrete by, for example, brushing. The absorbent pad may be made of several layers of paper and contain an absorbed solution of suchrose. The paper is dried and placed in the mould (which is preferably of a waterrepellent material) in the positions to give the required effect. The depth of etching can be varied by varying the concentration of the etching solution and the pad is preferably moistened before removal. The cement mix may contain layers of different material so that a different effect is seen below the etched parts.
Patent GB-1106899-A (GB)
Title: Improvements in or relating to synchro control systems and synchro devices for use therein
Inventor: MCWILLIAM GORDON LORIMER
IPC: G08C19/48
Filed: 1964-12-11
Abstract: 1,106,899. Transistor switching circuits. SMITHS INDUSTRIES Ltd. 3 Dec., 1965 [11 Dec., 1964; 20 Oct., 1965], Nos. 50456/64 and 44430/65. Heading H3T. [Also in Divisions G1 and H2] In apparatus for detecting when an A.C. voltage is outside a predetermined range, the test voltage on terminals 21a, 21b (Fig. 2), is opposed by the voltage across a resistor 30, derived from the same A.C. source, and the resultant applied to a transistor 32, whose output is rectified at 35 and fed to a transistor 36. If the test voltage is outside the acceptance range, the rectified difference signal causes transistor 36 to change from conducting to non-conducting, after a delay determined by capacitor 37. This changes the state of subsequent transistors 39, 40, the lack of collector current in 40 causing a warning device 22 to operate an indicator. The difference voltage fed to the first transistor 32 has its out-of-phase component removed by a rejection circuit 33 connected in negative feedback between the collector and base of transistor 32. The apparatus also incorporates means for comparing D.C. potentials at terminals 21e, 21f with that at 21c, and operating the warning device 22 if either or both potentials change from their normal value. A D.C. voltage obtained from bridge rectifier 42 is fed through two similar parallel circuits of a selsyn control system (Fig. 1, not shown) via terminals 21c, 21d and is also used to energize the transistors of the circuit. The potentials at 21e, 21f are fed to the bases of transistors 44, 45 connected as a long-tailed pair. The collectors of 44, 45 are connected to transistor 39 via rectifiers 47, 48 and to transistor 38 via resistors 49, 50. Transistors 44, 45 are normally both conducting, but a change in the potential at one or both terminals 21e, 21f causes one or both transistors to change its state, followed by changes to transistors 36, 39, 40, whereby warning device 22 is operated.
Patent GB-1514500-A (GB)
Title: Manufacture of heat-recoverable articles
IPC: B29C61/00
Filed: 1976-12-10
Abstract: 1514500 Heat-recoverable polymeric articles BICC LTD 10 Dec 1976 [10 Dec 1975] 50544/75 Heading B5A [Also in Division C3] Heat-recoverable articles, e.g. breeches pieces for electric cable joints, are formed from a semicrystalline ethylene polymer, which may be chlorinated, derived from either ethylene alone or from a mixture of monomers comprising at least 50 mole % ethylene and no more than 25 mole % of monomers other than ethylene and propylene, by (1) adding to the polymer a heat-decomposable free-radical generator in an amount which is not sufficient to cause crosslinking by itself, and a silane of formula SiBY 2 R<SP>1</SP> in which R is a monovalent olefinically unsaturated hydrocarbon or hydrocarbonoxyl radical, each Y is a hydrolysable organic radical, and R<SP>1</SP> is R or Y or methyl, (2) moulding the mixture to a first condition, and before, during or after said moulding heating the mixture to a temperature high enough to decompose the free-radical generator thus producing free-radical sites in the polymer which react with the silane, (3) then (and only then) subjecting the moulded mixture to the combined action of a silanol condensation catalyst and water to effect cross-linking; and finally (4) deforming the article to a heatunstable condition. Step (2) may be effected by injection or blow moulding. Step (4) may be effected either by cold deformation below the recovery temperature of the article, or by heating it above the recovery temperature, applying deforming forces and then cooling below recovery temperature whilst maintaining the deforming forces.
Patent GB-1504177-A (GB)
Title: Dictation system
IPC: H04M11/10
Filed: 1975-12-23
Abstract: 1504177 Selective signalling DICTAPHONE CORP 23 Dec 1975 [27 Dec 1974] 50603/76 Divided out of 1504175 Heading G4H [Also in Division H3]  In a signal decoder which produces (at I, II or III) any one of a plurality of output signals which correspond respectively to input signals of different magnitudes, the decoder input (at 46) is supplied to a threshold detector arrangement 162-166 followed by an inhibit arrangement, the latter ensuring that the decoder produces only one output signal regardless of the magnitude of the input signal. The decoder is used in a record/reproduce station to decode control signals transmitted from a remote dictation station, the two stations being part of the dictation system described in parent Specification. The decoder 78 receives on line 46 control signals from a remote station. Each signal is a constant current which may have one of three magnitudes, and may be either unmodulated or may have a tone signal superposed thereon. Hence six different signal conditions can be distinguished. An incoming signal is converted to a voltage at 150, any tone component being shunted off through band-pass filter 154. After passage through a low-pass filter 152 the voltage signal is applied to a threshold circuit 160 comprising three differential amplifiers 162- 166, each having a different reference level. A discriminating arrangement including transistors 212-232 ensures that even if more than one threshold is exceeded an output will only be produced from that circuit branch I, II or III corresponding to the highest exceeded threshold. This output is gated at one of the gates 242-252 with a signal, derived from 154 and 156, indicating the presence or absence of a tone, to produce a function signal which is then transmitted to the appropriate part of the record/ reproduce station.
Patent GB-1360812-A (GB)
Title: Stabilised mixtures of diglycidyl esters
IPC: H01B3/40
Filed: 1971-06-03
Abstract: 1360812 Mixtures of diglycidyl ethers and esters REICHHOLD-ALBERT-CHEMIE AG 3 June 1971 [9 June 1970] 50617/73 Divided out of 1360811 Heading C2C [Also in Division C3] The crystallization of a diglycidyl ether of 4,4<SP>1</SP>-dihydroxydiphenyl-propane-(2,2) having an epoxide equivalent of 170-270 is retarded by adding thereto in an amount of 3-20% by weight of the diglycidyl ether, of a diglycidyl ester of general Formula I wherein Z is X or Y; X denotes the radical -(R 1 .C.R 2 ) n - wherein R 1  and R 2  each denote H, or a C 1-12  alkyl or alkenyl group, and n is an integer of 1-10, and Y denotes one of the divalent radicals, Moulded articles may be produced by curing a non-crystallized mixture with a curing agent.
Patent GB-1263364-A (GB)
Title: Improvements in or relating to mobile cranes
Inventor: EICHLER HERBERT
IPC: B62D7/14
Filed: 1969-10-17
Abstract: 1,263,364. Controlling motor vehicles. SCHWERMASCHINENBAU S.M. KIROW VEB. 17 Oct., 1969, No. 51134/69. Heading B7H. The steering gear of a mobile crane having a chassis 30 and rotatable superstructure 5 includes an hydraulic control valve 6 operable in response to steering movements of a steering wheel 1, and a steering rod comprising mutually disengageable parts 10, 11 the part 10 of which is selectively engageable with a clutch member 12 for controlling a transmission clutch (not shown).  Rod part 11 is connected to a longitudinal steering shaft 13 (Fig. 2) which is connected via a linkage 19, 20, 21 to a similar shaft 22 extending longitudinally on the other side of the chassis. Further steering shafts 15, 23 may be selectively engaged with the respective shafts 13, 22 through clutches 16, 17, 18, or with chassis 30. Each steering shaft is associated with a steering cylinder 31 whose supply is controlled by control valve 6. During normal road use of the crane, with the transmission clutch engaged to provide the vehicle with self-propelling tractive effort, the steering rod parts 10, 11 are engaged so that mechanical steering effort is transmitted to shaft 13 and is given power assistance from the cylinders 31 under control of valve 6. When the superstructure has been rotated on the chassis (parts 10, 11 are disengaged for this purpose), steering is effected by cylinders 31 alone under the influence of control valve 6. If the angle of superstructure rotation exceeds 90 degrees relative to its normal reference position, a two-way valve is automatically reversed to reverse the hydraulic steering connections to maintain the same hand of steering function. During towing of the crane the rod parts 10, 11 are disengaged. The part 10 is connected to clutch control member 12 to maintain the transmission clutch disengaged. In such a circumstance, control valve 6 is by-passed and the steering cylinders interconnected so as to equalize pressure therein. In other embodiments (Figs. 5-7, not shown) different arrangements of the steering shafts and cylinders are described.
Patent GB-1126385-A (GB)
Title: Reheater units
IPC: F23M20/00
Filed: 1965-12-03
Abstract: 1,126,385. Re-heating units. STEIN & ROUBAIX. 3 Dec., 1965 [10 Dec., 1964], No. 51465/65. Headings F4A and F4S. Fluid, such as air or steam from conduit 3 is heated in a first system of tubes 5a, 5b extending between headers 4, 6 by gas, oil or pulverized fuel burners 2a, 2b, and is then led for re-heating through a second system of tubes 1a 1b via conduit 7 and header 8, which are screened from the burners by the tubes of the first system.
Patent GB-1439246-A (GB)
Title: Hydrometallurgical leaching
IPC: B01D11/02
Filed: 1973-11-06
Abstract: 1439246 Hydrometallurgical leaching MARCONA CORP 6 Nov 1973 [9 Nov 1972 1 Nov 1973] 51497/73 Heading C1A [Also in Division B1] In the hydrometallurgical leaching of particulate ores wherein ore fed to the uppermost region of a reaction vessel descends under gravity countercurrent to a rising column of extracting liquid fed to the lowermost region of the reaction vessel, and liquid and solids are withdrawn as overflow and underflow respectively, (1) the extracting liquid is directed as a rotating agitating stream in a region parallel to and above the bottom wall of the vessel, the stream being moved about the region to cause constant intermixing and recontact of liquid and solids; and (2) the rate of solids withdrawal is controlled so that a bed of solids is maintained as a zone of solids-in-contact, overlying and in contact with the agitated zone and moving downwardly towards and through the agitated zone. In one embodiment, copper ore of # inch top size is leached with 6% H 2 SO 4 . Solids are withdrawn from the lower region of the vessel. In one embodiment, (Fig. 2) leach liquid is supplied from pot 24, rotated by drive 30, so that liquid stream 50 rises countercurrent to solids 54 fed into vessel 10. Weir and overflow 39 deliver pregnant solution, via thickener 36, to storage at 38. Solids removed from sump 22 are passed to a succeeding stage after removing pregnant liquor at 34. The solids are removed as a slurry obtained by feeding water from jet 24. The rate of solids withdrawal is preferably controlled so that the solids-in-contact bed fills the major portion of the vessel. Valves 60 and 62 permit recycle of pregnant solution and solids respectively. In a further embodiment, solids are discharged by valved discharge volumedetermining pipes, which feed gas periodically into the bottom of the vessel to agitate the bed of material therein and prevent channelling.
Patent GB-1531427-A (GB)
Title: Device and method for producing a pipe joint having an internal groove therein
IPC: B29C57/00
Filed: 1975-12-17
Abstract: 1531427 Grooving tubes following injection moulding SEKISUI KAGAKU KOGYO KK 17 Dec 1975 [19 Dec 1974] 51741/75 Heading B5A Apparatus for grooving tubes comprises a split outer mould 11, 12 surrounding a core 2 having an axial projection 22 at one end, along which an auxiliary core member 23 and a sleeve 3 are slidable. In use, the apparatus is positioned as shown in Fig. 1, so as to define a mould cavity A into which a thermoplastics material is injected through a runner 4, to provide a tube end B (Fig. 2). The auxiliary core member 23 and the sleeve 3 are then slid axially along the core until meeting a stop 26 and positioned as shown in Fig. 2. The movement of the sleeve 3 has exposed an additional mould cavity 5 with the outer mould 11, 12, and positioned adjacent a fluid channel 27 opened up between the auxiliary and core members 23, 2. Fluid is passed through fluid channels 24, 25, 27 to push the tube B into the cavity 5 to form an internal groove and external bulge. After cooling of the shaped tube, the part 12 of the outer mould is moved laterally, and the core 2, 23, 3 axially, to allow tube removal. In an alternative embodiment (see Fig. 4, not reproduced) the tube injected initially is of constant diameter, and the sleeve 3 when slid axially exposes a cavity in the mould that defines a widened diameter socket for the tube in addition to the internal groove. The pressure fluid moulds both the socket and groove.
Patent GB-1244538-A (GB)
Title: Multi-stage telescopic hoist
Inventor: BUSHNELL SHERMAN WARD JR
IPC: F15B15/16
Filed: 1969-10-23
Abstract: 1,244,538. Fluid-pressure hoists. S. W. BUSHNELL Jnr. 23 Oct., 1969 [24 Oct., 1968], No. 51924/69. Headings B8H and B8J. A multi-stage telescopic hoist 10 carries a load support 11 and is mounted on a collapsible tripod assembly 12. The hoist 10 comprises a base section 14, a plurality of intermediate sections 15 and an upper section 16. Each intermediate section has a piston 34 with a well 41 merging with a bore 43 through the piston. Carried in the wells 41 are respective weighted balls 44 serving as check valves when the respective stage of the hoist is extended. A hollow probe 45, smaller in diameter than the bores 43 extends upwards from base-plate 22 and is connected by passages 23, 23<SP>1</SP> to a valve assembly 25. In the retracted state of the hoist 10 the probe 45 extends through all the pistons 34 displacing the balls 44 as shown. The hoist 10 is powered by fluid, such as carbon dioxide, under pressure in a tank 19 and is controlled by a three-way valve 20. From the position shown fluid is fed by the valve 20 through hose 21 to passage 26 connecting to the space under the lowermost piston 34 lifting all the pistons 34 in contact until the lowermost section 15 is fully extended. In this position the balls 44 respectively seat in the wells 41. Continued supply of fluid lifts the ball 44 in the lowermost intermediate section 15 allowing the next intermediate section 15 to be extended, and so on. At the required height the supply of fluid is cut off at the valve 20 and the balls 44 all seat in the respective wells 41 isolating the cylinders one from the other. From this position upward adjustment can be made using the valve 20 to pass fluid to the hoist 10 when all the balls 44 are unseated and the next highest non-fully extended section is caused to rise. Venting by the valve 20 causes discharge of fluid from the base section only, so that the adjustment is at the area of largest cross-section. Speedy retraction is by valve 25 (which also acts as a pressure release valve).
Patent GB-1324089-A (GB)
Title: Coke oven regenerators
IPC: C10B29/02
Filed: 1970-11-04
Abstract: 1324089 Thermal regenerators SIMONCARVES Ltd 4 Nov 1970 [8 Nov 1969] 52347/70 Heading F4K A regenerator brick intended for use in a horizontal coke oven, is of generally rectangular outline with groups 20, 21, 22 of passages extending through the brick from one face (e.g. an upper face) to an opposite face (e.g. a lower face), the said faces being shaped to provide on one face a recess 31, and on the other face a corresponding projection 32, such that when a plurality of the bricks are stacked one above the other, the passages are in alignment and adjacent blocks are interlocked by the interfitment of a projection of one block within the recess of an adjacent block.
Patent GB-1535441-A (GB)
Title: Sample injection device for liquid chromatographs
IPC: G01N30/24
Filed: 1976-12-16
Abstract: 1535441 Chromatography sampling device HEWLETT-PACKARD GmbH 16 Dec 1976 [4 Feb 1976] 52575/76 Heading B1H [Also in Divisions Fl and F2] A sample injection device for liquid chromatography comprises a syringe 19 having a piston 37, said syringe being moveable, by fluid pressure means 29 having alternative fluid inlets 31, 33, from the position shown to that where needle 25 seats in seat 27 so that the syringe contents can be passed into column 13 through non-return valve 23 by means of eluent supplied through pipe 17. The piston has adjustable stop 43 and may also be fluid operated.
Patent GB-1491695-A (GB)
Title: Photopolymerizable copying compositions and photopolymerizable compounds for use therein
IPC: C08F20/00
Filed: 1974-12-05
Abstract: 1491695 Olefinically unsaturated amide derivatives HOECHST AG 5 Dec 1974 [7 Dec 1973] 52693/74 Heading C2C [Also in Divisions C3 and G2] Novel compounds of the Formula II wherein G stands for -C(C n H 2n+1 ):CH 2 , -O-CH 2 -C m H 2m -O-CO-C(C n H 2n+1 ): CH 2  or -O(-CH 3 -CH 2 -O-) k -CH 2 -CR 1 R 2 R 3 , wherein  n  is 0, 1 or 2, m is a whole number from 1 to 11, k is 0 or a whole number from 1 to 4, R 1  is C 1-3  alkyl, -R 4  or -CH 2 -R 4 , R 2  and R 3 , which may be the same or different, are H, CH 3  or -CH 2 R 4 , and R 4  is and is present in at least one of the radicals R 1 , R 2  and R 3 , and X stands for a saturated or unsaturated bivalent hydrocarbon radical with 2 to 12 carbon atoms may be prepared by reacting a diisocyanate of the formula with water to yield a triisocyanate containing biuret groups and reacting the latter with acrylic or alkyl-acrylic acid esters containing free hydroxy groups. The first part of the reaction above is preferably carried out at 70-150‹ C. and the resultant biuret compound then reacted in a solvent in the presence of a catalyst and a thermal stabilizer with an appropriate hydroxyl group-containing ester to produce a triurethane. The reaction of the isocyanates with the acrylates and alkyl-acrylates containing hydroxyl groups is preferably preformed in a solvent in the presence of a thermal stabilizer and a tertiary amine catalyst. The compounds of Formula II generally have molecular weights ranging from 300 to 10,000 and their viscosities at 50‹ C. are preferably in the range 5-10,000 poises. The products may be used in photopolymerizable copying compositions.