baber/WOPTO huggingface dataset:
Patent GB-920968-A (GB)
Title: Improvements relating to clamped parts with fitting surfaces
IPC: F16C9/04
Filed: 1961-12-18
Abstract: 920,968. Bearings. DAIMLER-BENZ A.G. Dec. 18, 1961 [Dec. 20, 1960], No. 45347/61. Class 12 (1). [Also in Group XXII] In an assembly, parts are clamped together, are subjected to alternating stresses and are protected against fretting by having one of the fitting surfaces nitrided and the other fitting surface hardened and provided with a layer of copper having a thickness of at least 8Á. In an embodiment, a connecting rod 1 has fitting surfaces 4, 4<SP>1</SP> nitrided and a half-bush 5 has fitting surfaces 6, 6<SP>1</SP> hardened and provided with a copper coating 7, preferably galvanically applied. The fitting surfaces may also be coated with solid lubricant such as molybdenum disulphide for example. The Specification states that the copper layer may be provided on the connecting rod or the half-bush, or on both.
Patent GB-1481005-A (GB)
Title: Method and apparatus for effecting signalling over television signal channels
IPC: H04N7/08
Filed: 1974-09-26
Abstract: 1481005 Data transmission; television COMMUNICATIONS PATENTS Ltd 26 Sept 1974 [28 Sept 1973] 45420/73 Headings H4P H4F and H4M A method of signalling over a television channel comprises forming the unmodulated brightness carrier into two phase quadrature components which are modulated with separate signals and then combined for transmission over a common path. One component may be modulated with brightness signals and the other with data signals, or both components may be modulated with data signals and the resultant modulated with brightness signals. The frequency/amplitude response of quadrature modulated signal or signals may be shaped to minimize disturbance of brightness signals. A high frequency carrier is applied to input terminals 14 and passes through quadrature shift networks 15, 16 and applied to phase shift modulators 19, 20 each providing 0-180 degrees modulation. The modulated carriers are combined at 23 then passed through an amplitude modulator 24 receiving brightness signals 25. Data signals may be synchronized with sync. signals included in the brightness signal in ways known in the art, to occur at times when they will be least visible on reproduced television pictures. Such sync. signals may be utilized as clock signals for data. If modulators 19, 20 produce an adjustable phase shift, analogue instead of digital information may be transmitted. In another arrangement (Fig. 1, not shown) the brightness signal is modulated on to one carrier, e.g. at 21 and data modulated on to the other carrier e.g. at 22, the device 24 being omitted. The quadrature channel of Fig. 1 may be used alternatively for analogue information, e.g. sound transmission or analogue characters which may be displayed either alternatively with a television programme or superimposed upon it, e.g. sub-titles. At the receiver (Fig. 3, not shown) incoming signals are applied to a high frequency amplifier (28) then passed into parallel paths comprising demodulator (29) feeding a display arrangement (30) also through a phase locked loop (31) which demodulates the or one of the phase quadrature data signals which are then applied to utilization circuits (32). Where there are two sets of data, (31, 32) may be duplicated, or (31) may be common and is enabled selectively to demodulate either set of data by appropriate phasing of the loop. Both line and sync. signals may be utilized to resolve ambiguities in data signals.
Patent GB-1063935-A (GB)
Title: High molecular weight polycarbonates
Inventor: WULFF CLAUS
IPC: C08G64/06
Filed: 1965-10-27
Abstract: 1,1 - Bis - (4 - hydroxyphenyl) - cyclododecane or derivatives thereof in which the phenyl radicals are substituted by halogen, alkyl, cycloalkyl, aryl or alkoxy are made by reacting (a) phenol or the correspondingly substituted phenol with (b) cyclododecanone. Reaction is effected by saturating the reactants with hydrogen chloride gas in the presence of thioglycollic acid.ALSO:New polycarbonates are made by reacting (a) 1,1-bis-(4-hydroxyphenyl)-cyclododecane, or derivative thereof in which the phenyl radicals are substituted by halogen, alkyl, cycloalkyl, aryl or alkoxy with (b) a derivative of carbonic acid (e.g. phosgene or a bischloroformate). Part of the bisphenol may be replaced by another dihydroxy compound, e.g. another bisphenol; a dihydroxy-benzene, -naphthalene or -anthracene, or a dihydric alcohol.  Monohydric compounds (e.g. phenol or p-tert.-butylphenol) may be added as chain-terminators.  Reaction between the dihydric compounds and phosgene or a bischloroformate may be effected in the presence of a tertiary amine or an aqueous alkaline solution an optionally an inert organic solvent.  The polycarbonates are rendered insoluble by heating them in oxygen at 100 DEG  to 250 DEG  C. optionally in the presence of dibenzoyl peroxide or dicumyl peroxide. Examples describe the reaction of phosgene with 1,1-bis-(4-hydroxyphenyl)-cyclododecane or a mixture thereof with bisphenol A.  Uses.-Filaments, bristles, foils, coatings, moulds and extruded objects.
Patent GB-1016391-A (GB)
Title: Improvements in or relating to the manufacture of pulp and paper
IPC: C02F1/50
Filed: 1961-12-19
Abstract: The formation of slime in aqueous media used in the manufacture of pulp and paper products is prevented by adding to the aqueous medium a quantity of alkali metal azide corresponding to an azide ion concentration in said aqueous medium of from 1 to 500 p.p.m. The azide is preferably added as an aqueous solution containing borax, an alkali metal carbonate or hydroxide, an alkylamine, alkanolamine or heterocyclic base to maintain the pH above 8. The aqueous solution may also contain an antimicrobial sulphur compound, e.g. NC-N = C(SH)2, N - alkyldithiocarbamic acids or mercaptobenzothiazoles or alkali metal salts thereof; antimicrobial chlorophenols, e.g. penta-, tetra- or tri-chlorophenols; or polyhydric alcohols, e.g. glycerol or alkylene glycols.
Patent GB-1442653-A (GB)
Title: Josephson junction circuit arrangements
IPC: H01L39/22
Filed: 1973-10-01
Abstract: Logic elements comprising resettable Josephson junctions cooperating with matched transmission lines have input circuit inductances connected to reversible Josephson devices which are so small that a flux of less than one flux quantum only can be trapped therein preventing the continued circulation of supercurrent in the inductance after removal of the input signals from the associated reversible Josephson junctions.
Patent GB-1526247-A (GB)
Title: Winding threads of thermoplastic material
IPC: B65H65/00
Filed: 1975-11-05
Abstract: 1526247 Thread winding; winding waste yarn SAINT-GOBAIN INDUSTRIES 5 Nov 1975 [13 Nov 1974] 45916/75 Heading D1J To wind a thermoplastic thread onto a rotating spindle, the thread is applied during the running up of the spindle to the circular end face of a waste yarn wind-up device on a free end of the spindle, the thread is taken up by gripping means at the periphery of the end face, and is guided by the gripping means into an annular groove of the wind-up device. To start winding on package tubes 4 on a spindle, Fig. 1, extruded threads 2 are passed by an operator through groove 13 in fixed rod 11 and between driven rollers 19, 20. Spindle 4 is rotated and the threads are gripped in slots 10, Fig. 2, in waste yarn wind-up device 7 on the spindle, the threads snap between the device and the rollers, and the threads are guided by the slots to wind in groove 8 in device 7. When the spindle reaches its operating speed, ejector 15 rotates about axis 16 so that projection 14, Fig. 4, lifts the threads from groove 13 and guides them to traverser 6. Rollers 19, 20 are disposed at an angle, e.g. 5, to ensure that the thread enters slots 10. More than one pair of slots may be provided, and their edges may be rounded. Rollers 19, 20 may have rounded teeth to obtain progressively snapped filament ends which are said to be more easily trapped beneath further windings in groove 8 and thus do not flail with the rotating spindle. The end surface of device 7 may be moistened by a spray, the threads may be introduced between rollers 19. 20 by a rod or guide (Figs. 18 and 19 not shown) and the rollers may be replaced by a pinned disc. The threads may be wound on pins 65, Fig. 27, before being guided by slots 66 into groove 8.
Patent GB-1330217-A (GB)
Title: Absorption refrigerating apparatus
IPC: F25B47/02
Filed: 1971-10-04
Abstract: 1330217 Absorption refrigeration system ELECTROLUX Ltd 4 Oct 1971 [8 Oct 1970 (2)] 45997/71 Heading F4H In an absorption refrigeration system, a U-shaped connecting conduit is located in the system between the vapour space 31 and the evaporator 24, 26, such that in operation automatic defrosting is achieved. The vapour space 31 is separated from the inert gas circulation system by two liquid seals, one constituted by the analyser 18 and the other by liquid present in the U-shaped conduit 32, 33, 34. With the features of the system positioned such that a first height between (i) the connection 36 to the vapour space and (ii) the bottom 33 of the U-shaped part is greater than a second height between (i) the liquid level II in the absorbed vessel 10 and (ii) the level I of the analyser 18 of a connection thereto with the vapour space; and also leg 34 extends higher than leg 32 a height which is not less than the said second height, then in operation, a thermostat 14<SP>11</SP> will cut off the supply to the generator 14, causing an equalization of pressure in the system which forces the liquid in the U-shaped conduit to be forced into the boiler system 19 and hot gas into the evaporator 24, 26.
Patent GB-1189950-A (GB)
Title: Door Operating Mechanism
IPC: B61D19/02
Filed: 1968-09-27
Abstract: 1,189,950. Control of motors. VAPOR CORP. 27 Sept., 1968 [6 Nov., 1967], No. 46004/68. Heading H2J. [Also in Division E2] In an electric door operator having an output shaft 14 rotatable between open and closed positions of the door, control of the door movement is effected via a cam 43 secured to and rotatable with the shaft and which co-operates with three fixed switches 40, 41 and 42, there additionally being a locking device 24 operable independently of the shaft and which includes a lock releasing solenoid 34. As disclosed, the door motor and solenoid are energized manually to initiate opening, and switch 40 operates at the end of the opening cycle to de-energize the motor, switch 41 operating before this to actuate a door opening cushioning circuit and to deenergize the solenoid. Switch 42 operates near the end of the closing cycle which is initiated manually to de-energize the motor and to actuate a door closing cushioning circuit. Cushioning is effected by adding a resistance to the motor circuit.
Patent GB-1398147-A (GB)
Title: Image reproduction apparatus
IPC: H04N9/73
Filed: 1972-10-05
Abstract: 1398147 Television EASTMAN KODAK CO 5 Oct 1972 [5 Oct 1971] 46035/72 Heading H4F In television apparatus for deriving first, second and third primary colour representative signals from a received polychromatic image, the first and second colours lie on a line substantially parallel to the colour temperature wave on the CIE diagram, i.e. the line joining points representing different types of "white" light source, and control circuitry is provided for varying only the first and second signals inversely relative to each other to alter the effective colour temperature of an image display provided, in use, from the signals. The apparatus may be of the telecine type described in Specification 1,361,457 and the colour temperature may require correction on account of mismatch between the colour temperature of the illumination of the original scene, the film characteristics, and the television camera and receiver. The first and second colours may be red and blue. In a first embodiment the control circuitry comprises preamplifiers receiving R, G and B video signals. The outputs of the R and B amplifiers are applied across respective ones of a double gang potentiometer in opposite direction and modified R<SP>1</SP> and B<SP>1</SP> signals are taken off from the sliders together with the unmodified output of the G preamplifier. In a second embodiment the gains of the R and B preamplifiers are varied inversely by voltages derived from a common point via a potentiometer. The gain of the G preamplifier is not controlled.
Patent GB-1061007-A (GB)
Title: Improvements in or relating to the heel and/or toe pockets of stockings and methods of forming same
IPC: D04B9/46
Filed: 1964-11-12
Abstract: Heel or toe pockets are produced during rotary movement of a multi-system circular knitting machine by knitting partial causes in the area of the pocket on at least one knitting system the thread ends at the beginning and end of each partial course being knitted with the preceding or following course as double thread stitches. The needles knitting the double thread stitches run through the system preceding that in which the double thread stitches are produced at the tuck height, and a thread reserve is provided for loops formed on these needles at the preceding system to prevent substantial stressing of the loops when the needles move from the tuck height into the knocked-over position.  Several embodiments are described.
Patent GB-1398004-A (GB)
Title: Preventing migration of pigments in dyeing or printing fibrous materials
IPC: D06P1/44
Filed: 1972-10-06
Abstract: 1398004 Prevention of migration in pigment dyeing BADISCHE ANILIN-& SODA-FABRIK AG 6 Oct 1972 [7 Oct 1971] 46194/72 Heading D1B [Also in Division C3] Migration of pigments during dyeing and printing process is prevented by adding to the pigment dye liquor or print paste a block copolymer of formula B m -An n -B m  in which A is an ethylene oxide unit, B is a 1, 2-propylene oxide unit, n is an integer 30 to 60, m is an integer 10 to 25, the weight ratio of ethylene oxide to propylene oxide preferably being 60:40 to 50:50. A minor proportion by weight of the block copolymer may be replaced by a C 8  to C 12  alkylphenoloxyethylate  of MW 500 to 800 or by a polyethylene glycol of MW 300 to 500. The copolymer is added to pigment dye liquors and print pastes in an. amount of 0.3 to 5% by weight based on weight of the liquor or paste.
Patent GB-1439527-A (GB)
Title: Electrostatographic imaging apparatus including menas for detecting the density of application of toner particles
IPC: G03G15/06
Filed: 1973-10-04
Abstract: 1439527 Developing electrostatic images XEROX CORP 4 Oct 1973 [6 Oct 1972] 46320/73 Heading G2H A measure of the deposition of toner particles on photo-conductive surface 12 is obtained by measuring the transmission of light through a transparent electrode 42, by means of a photosensor 46 which is associated with a light-pipe 48 and kept at a constant temperature by a surrounding heating apparatus 50.
Patent GB-1184788-A (GB)
Title: Mine Roof Support Systems
Inventor: PENN RONALD GEORGE
IPC: E21D23/20
Filed: 1966-10-21
Abstract: 1,184,788. Advancing mine roof support assemblies. COAL INDUSTRY (PATENTS) Ltd. 20 Oct., 1967 [21 Oct., 1966], No. 47170/66. Heading E1P, In an advancing mine roof support assembly consisting of support frames arranged along a longwall face in groups of say eight and which is divided in such a way that every third frame constitutes a "pusher" unit and every ninth frame a "master" unit, the conveyor advance may be stopped by operation of any stop valve 44 associated with any frame or restarted by operation by any of the start valves 40 thereof. Each frame includes three props 16, 17 and 18 and a double-acting jack 19 having a trigger valve 35. The control circuit of each frame has a power supply conduit 3, right- and left-hand, out-going, pilot lines 6, 7, an exhaust line 5 and advancing lines 8, 9. As shown, the circuit includes prop setting and release valves 33, 29, "push" and "pull" valves 20, 24 for the jack and "trigger", start and stop valves 35, 40 and 44 respectively. As the props reach setting pressure the start valve 40 is energised to feed fluid to a pilot line which is in communication with an adjacent frame. For pilot and manual operation, arrangement and function of "ramming" valves and "master" units together with other operational desiderata the Specification and Figs. 1 and 2 (not shown) should be referred to.
Patent GB-1374274-A (GB)
Title: Load cells
IPC: G01L1/14
Filed: 1972-08-10
Abstract: 1374274 Load cell: tensile testing UNITED KINGDOM ATOMIC ENERGY AUTHORITY 10 Aug 1972 [11 Oct 1971] 47242/71 Headings G1S and G1W A load cell, which may used in a tensile testing machine comprises a base 22 Fig. 4, having an upper part 22a which distorts when a tensile force is applied via rod 27, and a pair of elongate members 23 which deflect relative to each other when part 22a distorts to amplify the distortion. The elongate arms may carry a transducer 29 to measure the separation of the arms. In Fig. 1, the distortable upper part 2a of base 2 carries four elongate arms 3, and the separation S1 or S2 may be measured by a variable inductance transducer (not shown).
Patent GB-1059966-A (GB)
Title: Diphenoxy titanium dichloride
Inventor: STANLEY ROBERT HOLROYD
IPC: C07F7/00
Filed: 1962-12-14
Abstract: The invention relates to diphenoxy titanium dichloride and to a process for the preparation thereof by reacting phenol and titanium tetrachloride. In an example, phenol, dissolved in benzene, is heated under dry argon and titanium tetrachloride added dropwise to the mixture and refluxed.  Hydrogen chloride is evolved and on cooling a red crystalline precipitate was formed which was recrystallized.ALSO:Olefine oxides may be polymerized using diphenoxy titanium dichloride (see Division C2) as a catalyst.
Patent GB-1171302-A (GB)
Title: Xerographic Reproducing Apparatus
IPC: G03G21/00
Filed: 1966-10-21
Abstract: 1,171,302. Xerographic apparatus. RANK XEROX Ltd. Oct. 21, 1966 [Oct. 22, 1965 (2)], No. 47406/66. Heading G2H. A xerographic machine comprising a rotable xerographic drum 22, and transfer apparatus comprising a dielectric endless belt 48 mounted so that the bottom of the belt contacts the surface of the drum, a first electrostatic charging device 172 for electrostatically adhering a paper sheet to the belt prior to contact with the drum, and a second electrostatic charging device 40 for placing an electrostatic charge on the back of the belt to transfer a powder image on the drum to a paper sheet on the belt. Preferably the charging device 40 is tilted so that the electrostatic charges are placed on the belt directly above the transfer point, and the belt is movable into and out of contact with the drum to eliminate unnecessary contact when a powder image is not being transferred.
Patent GB-1090207-A (GB)
Title: Elastomeric block copolymers
IPC: C08F8/04
Filed: 1965-11-11
Abstract: Elastomeric block copolymers are made having the formula A-B-A in which each A is a polymer block of a conjugated diene having from 4-10 carbon atoms and an average molecular weight of 40,000 to 250,000 and B is a polymer block of a conjugated diene having from 4-10 carbon atoms and different from that of block A and having an average molecular weight of 100,000 to 1,000,000. The block copolymers are made by (a) polymerizing a C4-C10 diene in an inert hydrocarbon solvent using the required amount of secondary alkyl lithium initiator, calculated on the basis of one alkyl lithium radical per growing polymer chain, so as to obtain a molecular weight of the final polymer chain of 40,000 to 250,000, (b) adding to the same reaction mixture a different C4-C10 diene, (c) continuing polymerizatio until substantially no unpolymerized diene remains, (d) adding to the same reaction mixture a C4-C10 diene different from the diene used in step (b), and (e) continuing polymerization to form an A-B-A block copolymer.  Dienes specified are butadiene, isoprene, piperylene, dimethylbutadiene, 1,3-hexadiene and chloroprene.  The block copolymer may be after-treated by hydrogenation or may be blended with block copolymers of the formula E-D-E in which E is a non-elastomeric polymer block of a vinyl arene or vinyl pyridine and D is an elastomeric conjugated diene polymer block.  The example describes the preparation of polybutadiene-polyisoprene-polybutadiene block copolymers using secondary butyl lithium as a catalyst.
Patent GB-1127143-A (GB)
Title: Shoring structure for forms for casting concrete
IPC: E04G11/48
Filed: 1965-11-12
Abstract: 1,127,143. Supporting floor shuttering. ECONOMY FORMS CORP. 12 Nov., 1965 [30. Aug., 1965], No. 48225/65. Heading E1S. Floor &c. shuttering panels are carried on trusses 102 mounted on channels 81 slidable on posts 22 between lower inoperative and upper operative position, in which latter position the panels are in the plane of the top of 'he posts. The flanges of the ends of the rectangular panels engage hooks 108 on the trusses the tops 103 of which also form part of the casting surface. Plates 107a on the end of the trusses engage behind inclined flanges 114 at the top of the channels 81 which are locked in the upper position by bolts 93 engaging an extension 101 of the channel. A shuttering platform is described, Fig. 1 (not shown) having four posts at the corners of a rectangle carrying two parallel trusses braced together and supporting the panels and having cross braces, connecting the posts, mounted by pins on flanges on the posts and locked thereon by bolts. The posts have screw adjustable bases. One platform may be mounted on another by means of members having opposed sockets, Fig. 15 (not shown). A diagonal brace 62 Fig. 11 is secured to an horizontal brace 26 by means of a pin 67 engaging a hole in an angle 64 welded to the end of the brace 62 and having a slot 69 maintained in a vertical plane by the weight of a handle 68 on the head of the pin. A wedge 74 is engaged through a hole 73 in the brace 26 and the slot 69. A horizontal brace 27 Fig. 9 has a plate 33 having pins 37 engaged in holes in a flange 36 on a post 22 and is pulled into engagement by an inclined bolt 47 locked by a latch 51 engaging under the flange 36.
Patent GB-1518030-A (GB)
Title: Boilers
IPC: F24H1/26
Filed: 1976-11-22
Abstract: 1518030 Hot water boilers H VIESSMANN 22 Nov 1976 [22 Nov 1975] 48615/76 Heading F4A A hot water boiler comprises an outer side wall 1 extending between and welded (at 4) to end walls 2, 3, an inner tubular member 6 extending through the end walls and welded thereto (at 4<SP>1</SP>), a combustion chamber 8, and longitudinally extending metal members 7 attached to member 6 and extending to the combustion chamber to define flues. As shown in Fig. 4 the members 7 are welded to a sheet 6<SP>1</SP> which is subsequently bent and welded to form the member 6. End plates 13, 14 carry a gas or oil fired burner and gas outlet 19 respectively and are releasably attached to the end walls. In a further embodiment (Fig. 3, not shown) the water jacket above the boiler is extended to receive a domestic water tank disposed in the water space and the member 6 is tapered at one end to receive the burner.