baber/WOPTO huggingface dataset:
Patent GB-949560-A (GB)
Title: Uncoupling devices for the motor-driven variable speed transmission of autocycles
IPC: F16H55/56
Filed: 1962-11-14
Abstract: 949,560. Variable-speed gears. ATELIERS DE LA MOTOBECANE. Nov. 14, 1962 [Nov. 14, 1961], No. 43098/62. Heading F2D. In an expanding pulley belt gear for an autocycle wherein the flanges 30, 31 of a driven pulley 14 are normally urged together by a spring 38, means are provided to overcome the spring action and move the flanges 30, 31 apart to disconnect the drive whereupon the belt 15 slips on a support drum 45 fast with one flange 31. As shown, a hub 44 of the axially fixed flange 31 is fast with a driven shaft 18 to which a hub 36 of the axially movable flange 30 is keyed. The flange 30 is connected by arms 41, which pass through holes 42 in the fixed flange 31, with a sleeve 40 that is normally urged to the left by the spring 38. To disconnect the drive the flange 30 and sleeve 40 are moved right against the action of the spring 38 by a nut 28. In Fig. 3 (not shown), the axially movable flange is nearest the nut 28 which engages a threaded part of the driven shaft 18 and the spring acts between the nut and axially movable flange. To disconnect the drive the spring pressure is released to allow axial separation of the flanges. As shown, the pulley 14 is driven by the belt 15 from a centrifugally controlled driving pulley 13 and the driven shaft 18 drives the rear wheel 1 through a reduction gear 16, 17.
Patent GB-1407007-A (GB)
Title: Infusible para-oxybenzoyl polyester production
IPC: C08G63/00
Filed: 1972-09-21
Abstract: 1407007 Preparing p-oxybenzoyl polyesters CARBORUNDUM CO 21 Sept 1972 [1- Oct 1971] 43657/72 Heading C3R A process for preparing an infusible, thermally stable, p-oxybenzoyl polyester exhibiting a reversible crystalline transition at 330‹ to 360‹ C. comprises heating p-acetoxybenzoic acid in an inert, high boiling liquid heat transfer medium to between 300‹ and 425‹ C. for a time sufficient to produce the polyester.
Patent GB-1011923-A (GB)
Title: Improvements in or relating to tocopherols and sterols
IPC: C07D311/72
Filed: 1961-12-08
Abstract: The recovery of unsaponifiable matter including tocopherols and/or sterols from a vegetable oil deodorizer distillate is facilitated by adding to the lime soap mass containing said unsaponifiable matter and formed on saponifying said distillate a powdering agent in a quantity sufficient to cause break-up of the mass, which is then extracted with a selective solvent in which the lime soap is insoluble and the unsaponifiable mass is soluble. The powdering agent, which is a colloidal or finely divided, oil absorbent, abrasive, inorganic solid insoluble in said solvent and inert relative to the components of the lime soap mass, is added to the mass before it sets into a hard gel, the moisture content of the mass being below 5% by weight when the agent is introduced. Powdering agents referred to are colloidal calcium silicate, colloidal sodium silico-aluminate, finely divided alumina, colloidal silica and colloidal titania.  The agent can be introduced into the mass during its formation (i.e. with the addition of the calcium ion bearing reagent such as an inorganic calcium salt to the alkali-saponified sludge) and at the solvent extraction step, but is preferably introduced after the mass has been subjected to a partial drying operation prior to the extraction.  The concentration of the agent in the mass preferably lies in the range of 3 to 21% by weight. After extracting with the selective solvent, the solution may be separated from the mass and the solvent removed to form a concentrate of sterols and tocopherols.  Alternatively, after separation and, if necessary, concentration, the solution may be wintered at a low temperature whereby sterols are crystallized therefrom and separated leaving a solution of tocopherols. In either case the powdering agent may be recovered from the lime soap mass, e.g. by acidifying with a dilute mineral acid to give a fatty acid fraction and an aqueous fraction and separating the powdering agent from the latter. Examples are given, and comparative examples illustrate the effect of too much water being present in the lime soap mass on the addition of the powdering agent.
Patent GB-1048753-A (GB)
Title: Pulling over and lasting of shoes
IPC: A43D21/12
Filed: 1965-01-21
Abstract: 1,048,753. Shoe upper conforming machines. J. S. KAMBORIAN. Jan. 21, 1965 [Jan. 27, 1964], No. 44056/65. Divided out of 1,048,751. Heading A3B. The subject matter of this Specification is contained in the parent Specification, but the claims are concerned with the wiper movement.
Patent GB-908899-A (GB)
Title: An improved fluid coupling
Inventor: BECKER JOHN EDWARD
IPC: F16D33/18
Filed: 1959-12-30
Abstract: 908,899. Hydraulic couplings. ROBSON, C. Dec. 5, 1960 [Dec. 30, 1959], No. 44285/59. Class 69 (2). An hydraulic coupling comprises a turbine member 3 spaced away from and rotatable within  a shell 6 rotatable with an impeller member 2, orifices 13, 14 for permitting a bypass stream of fluid from the members of the coupling to flow through the space between the turbine and shell, and a plurality of heat-dissipating fins 8 carried upon and protruding outwardly from the shell. A shroud 10 is secured to the outer edges of the fins and inlets and outlets 15, 16 are provided to permit a free passage of air. Similar fins 7 and a shroud 9 may be secured to the portion of the shell adjacent the impeller. In an alternative embodiment, both the impeller and turbine are spaced away from the shell so that fluid may be by-passed between both the impeller and turbine and the shell.
Patent GB-1525526-A (GB)
Title: Process for preparing a condensed milk
IPC: A23C11/10
Filed: 1976-10-27
Abstract: 1525526 Condensed milk substitute SOC DES PRODUITS NESTLE SA 27 Oct 1976 [14 Nov 1975 28 Sept 1976] 44603/76 Heading A2B A condensed-milk substitute comprises 8- 18 parts by weight of protein which has been partially hydrolysed by an enzyme in aqueous solution or suspension, 4-9 parts fat, 40-55 parts sucrose, 25-32 parts water and 0.14 parts lactose. The protein may be acetylated. The product may be pasteurised and homogenised. The enzyme may be a microbial protease from e.g. Streptococcus griseus, Bacillus cereus or Bacillus subtilis and hydrolysis may be carried out for 1-24 hours at 25-65C and pH 2-9. The protein may be derived from soy or yeast e.g. by isoelectric precipitation. To eliminate bitter tastes the protein may be partially precipitated by adding CaCl 2  at 0.001-0.1M and/or adjusting the pH to 4.5-7. 0.05-1% of Na or K carbonate or bicarbonate or Na 2 HPO 4  may be added to increase temperature stability. 0-3% CaCO 3  may also be included.
Patent GB-1437056-A (GB)
Title: Use of a brass alloy containing phosphorus
IPC: C22C9/04
Filed: 1974-10-16
Abstract: 1437056 Cu base alloy WIELAND-WERKE AG 16 Oct 1974 [24 Oct 1973] 44881/74 Heading C7A A brass alloy of composition:- plus impurities balance. The alloy may be fabricated into heat exchanger tubes e.g. condenser tubes for use in sea or salt water.
Patent GB-1464837-A (GB)
Title: Process for the removal of residual melts
IPC: C30B15/00
Filed: 1975-10-31
Abstract: 1464837 Cleaning crucibles WACKERCHEMITRONIC GES FUR ELEKTRONIKGRUNDSTOFFE mbH 31 Oct 1975 [14 Nov 1974] 45132/75 Heading F4B [Also in Division B1] Residual melt is removed from a crucible by absorbing it in a solid capillary body of material inert to the melt. To remove the remaining silicon melt from a crystal drawing crucible, a body of carbon felt is degassed in vacuo, fixed to a steel holder and immersed in the remaining melt. The carbon felt was removed and cooled, and the crucible was rinsed with an acid mixture and reused.
Patent GB-1285946-A (GB)
Title: Improvements in or relating to solid propellants suitable for use in rockets
IPC: F02K9/12
Filed: 1969-09-12
Abstract: 1285946 Propellant charges DYNAMIT NOBEL AG 12 Sept 1969 [19 Sept 1968] 45214/69 Heading F3A An end burning solid propellant charge for a rocket comprises a plurality of longitudinally extending propellant rods 1 separated from each other only by a non-metallic material 2 which burns away at a greater rate than the propellant. The rods have a hexagonal, triangular, circular or rectangular cross-section. The material 2 is also a propellant and comprises a porous or foamed composition coating the rods or constituting a circumferential region of the rods. Alternatively, the rods can be embedded in the material 2 and bonded with adhesive or by pressing. The charge is housed in a container 3 surrounding all but one end region of the charge. When this end region is ignited the burning front proceeds most slowly in the centre of the rods. Consequently, heads or peaks which are initially frustoconical and subsequently conical are developed, whereby the effective burning surface is doubled.
Patent GB-1008124-A (GB)
Title: Improvements in or relating to slatted roller blinds
IPC: E06B9/34
Filed: 1963-11-19
Abstract: 1,008,124. Slatted roller blinds. HUNTER DOUGLAS INTERNATIONAL Ltd. Nov. 19, 1963 [Jan. 22, 1963, April 18, 1963], No. 45639/63. Heading E1J. A slatted roller blind has at least one section, which section may consist of at least one slat 3, in which the slat or slats are pivotable to open but of the plane of the screen when in its closing position and is/are connected to the non- openable slats 2, 4 so as to be pivoted by the weight of the non-openable slats. As shown in Fig. 1 the opening slats 3 are pivoted at their inner edges on metal carrier tapes 5 windable on and off the roller 1, and to one side of their centre points or at their outer edges to a connecting metal tape 6. The non-opening slats below the opening slats are suspended from the outer edge of the lowest opening slat 3, Fig. 1, from a lower extension of the carrier tape 5, Fig. 3, or may be from the connecting tape 5f, Fig. 8, in which case the inner edges of the slats are pivoted on the connecting tape 6f. The opening slats may be connected by link work 20a-20d, Fig. 7 and by pivoted arms 26 so that the slats 3 are successively pivotable into and out of the open position. In the embodiment shown in Fig. 3, the weight of the opening slats 3 themselves and of the screen section below the pivotable section of slat 3 is used for pivoting the slats into the open position. In Fig. 1, the weight of the opening slats 3 alone and any non- openable slats above provide for the opening of the slats 3. A slat, as shown in Fig. 12, has a biased longitudinal edges 53 pivoted on metal tapes 44 by co-operating with metal or plastic hook members 45 riveted &c to the carrier tapes to provide a pinless hinge, and the slat 51 may be pivoted intermediate its ends by a hook-shaped scrolled tongue stamped out of the central portions of the slat cooperating with a hook 45a or on the carrier tape 56.
Patent GB-1043470-A (GB)
Title: Improvements in or relating to improved shoulder or other supporting straps for garments
IPC: D03D15/56
Filed: 1964-11-10
Abstract: An elastic tape for lingerie shoulder straps has a weft of nylon monofil and a warp of spandex yarns and stretch yarns.  The warp may also include slack monofils which take up a zigzag shape when the tape is relaxed.
Patent GB-1109355-A (GB)
Title: Direct acting hydraulic shock absorber
IPC: F16F9/06
Filed: 1966-10-13
Abstract: 1,109,355. Hydraulic shock-absorbers. MONROE BELGIUM N.V. 13 Oct., 1966 [20 Oct., 1965], No. 45830/66. Heading F2S. A hydro - pneumatic shock - absorber, preferably formed wholly of a plastics material, e.g. polypropylene, comprises a piston 13 which works in a cylinder 3 and which has a large recess 17 which is open to the lower cylinder chamber and which communicates with the interior of a hollow piston rod 15, small damping spaces being formed between upper and lower peripheral flanges 23, 21 on the piston 13 and the internal bore 5 of the cylinder 3. Additional orifice, or valve arrangements, may be incorporated in the piston or piston rod, the tolerance between the piston flanges 21, 23 and the bore 5 being accurately controllable when the piston and cylinder are formed of similar plastics material. A piston rod guide 25 has a recess 27 to receive an 0-ring 29 which is retained in position by a guide 31.
Patent GB-1372044-A (GB)
Title: Clutch bearings
IPC: F16D23/14
Filed: 1971-10-01
Abstract: 1372044 Clutch release bearing SKF KUGELLAGERFABRIKEN GmbH 1 Oct 1971 [2 Oct 1970] 45849/71 Heading F2L A clutch release bearing has an outer race 1 and an inner race 2 the inner race having a curved part 14 corresponding to the curve (radius R) of a surface of a release ring 15, and having an axially extending portion 17 within which is an axially extending portion 16 of the release ring, there being a resilient ring 18 between the axially extending parts. A protective disc 12 is attached to the outer ring and extends towards the inner ring, forming a seal between them. The side of the ring 15 facing the clutch release levers (not shown) is flat, as shown, for curved levers and curved (Fig. 2, not shown) for flat surfaces of the release levers. A cap 9 over the outer race may have a flange at its outer periphery for engagement by a clutch released fork, which otherwise contacts raised portions 11. The bearing races and cap may be of sheet metal (as shown), or may be solid (Fig. 4, not shown). A cage 3 supports the balls 4.
Patent GB-1090909-A (GB)
Title: Electrical control system for an industrial truck
Inventor: PALMER NORMAN
IPC: H02P7/29
Filed: 1964-11-17
Abstract: 1,090,909. Control of D.C. motors. EATON YALE & TOWNE Inc. Oct. 22, 1965 [Nov. 17, 1964], No. 46721/64. Heading H2J. An industrial truck is driven by an electric motor having armature 14 and field windings 17 supplied from battery 11, the field windings being associated with reversing contactors 18, 19. Before the contactors are closed, transistors 41, 49 are conductive and gate current is supplied to rectifier 25 which does not conduct at this stage since its anode-cathode voltage is zero. As soon as the contactors close, capacitor 24 is charged to switch off transistors 41, 49, the rectifier 25 being maintained conductive through resistor 29. Capacitor 45 charges to switch on transistors 55, 56 and 58, 61. Switch 65 is closed when a throttle pedal is depressed beyond a set amount to switch on controlled rectifiers 26. At the same time, controlled rectifier 27 is switched on through transistor 64 and rectifier 25. When rectifiers 26 conduct, capacitor 54 discharges so that no further gate current flows to rectifiers 26, 27. Before these gate currents close, however, the motor is energized through rectifiers 26, the capacitor 24 being discharged. Motor current continues to flow, and the capacitor 24 continues to transfer its charge until rectifier 27 stops conducting, the capacitor being left with a reverse charge. When the rectifiers 26 conduct, capacitor 45 discharges, and, after a predetermined period, transistor 41 conducts to render rectifier 25 conductive, so allowing capacitor 24 to reverse bias the rectifiers 26. The capacitor 24 then re-charges and the cycle continues as before. The speed of the motor is varied by adjusting the time for the capacitor 54 to charge sufficiently to switch on transistor 55. As the throttle pedal is depressed, a slider moves across resistor 77, the collector voltage of transistor 73 falls, and transistors 84, 87 conduct. Capacitor 54 charges to increase the motor speed in accordance with the amount the pedal is depressed. Capacitor 75 acts as acceleration control, but, when the pedal is fully depressed, diode 82 conducts to increase the base current of transistor 73 to permit more rapid acceleration. Switch 83 closes when a brake pedal is depressed so that the slider of resistor 77 is connected to line 38 and the motor speed is reduced to a minimum irrespective of the position of the throttle pedal, the reduction of speed being obtained without opening the contactors.
Patent GB-1270409-A (GB)
Title: Stitching machine
Inventor: WEIGHTMAN JEFFRAY
IPC: B42B2/02
Filed: 1969-09-25
Abstract: 1,270,409. Stitching machines. HOBSON DESIGNS Ltd. 12 Aug., 1970 [25 Sept., 1969], No. 47251/69. Heading B4C. A stitching machine for stitching together sets of sheets comprises a beam 6 mounted in a frame (not shown) for vertical reciprocation by a crank-shaft 36 and a connecting rod 12. The beam carries one or more stitching heads 8 and the machine includes a stitching station 2. The crank-shaft is driven by an electric motor 22 via an electromagnetic clutch 20 and an electromagnetic brake 18, and the sequence of operations of the machine is controlled by cams 14, 16, 24 and 26 which actuate microswitches 28, 30, 32 and 34 respectively. Normally closed switch 32 is in series with normally open switch 28 and the brake 18, and normally open switches 30, 34 are in parallel with each other and in series with the clutch 20. In operation (with the crank pin initially at the top dead centre position, the switch 28 being closed and brake 18 being energized), a set of sheets is fed to the station 2 and knocked up by means (not shown) driven in synchronism with rotary shaft 4, which is driven independently of the motor 22. When the sheets are properly positioned cam 24 opens switch 32 and causes brake 18 to be de-energized. Subsequently and before switch 32 is released, cam 26 actuates switch 34 which closes a circuit including the clutch 20. The motor 22 commences to drive the crank-shaft. As soon as the crank-shaft 36 rotates cam 14 is removed from engagement with switch 28 which thus opens. Cam 24 now releases switch 32 which thus closes. Continued rotation of the crank-shaft causes cam 16 to actuate switch 30 which thus closes and cam 26 then releases switch 34 which thus opens. As the crank-shaft approaches the end of a single revolution, during which the heads 8 have applied stitches to sheets at the station 2, the cam 16 releases the switch 30 thus causing de-energization of the clutch 20, and the crank-shaft is stopped when cam 14 engages switch 28 to energize the brake 18. Continued rotation of drive shaft 4 will again deliver a set of sheets to the station 2 prior to a further stitching operation.
Patent GB-1526928-A (GB)
Title: Frequency synthesisers
IPC: H03L7/191
Filed: 1975-10-31
Abstract: 1526928 Automatic frequency control PLESSEY CO Ltd 31 Oct 1975 [2 Nov 1974] 47484/74 Heading H3A A frequency synthesizer comprises: a phase comparator 15 to one input of which is applied a reference signal 14 and to the other input of which a controlled oscillator 11 is coupled via a divider 12, 13, the output of the comparator being applied as a control signal to the oscillator 11; and a frequency discriminator 17 also fed with a signal derived from the output from oscillator 11 to provide a second, faster acting control signal from the oscillator. As shown in Fig. 2, both control signals are applied to the oscillator 11 via a common low pass filter so that both controls extend down to zero frequency. Alternatively, Fig. 1 (not shown), the frequency discriminator output may be applied through a separate bandpass filter (10). Frequency modulation may be applied at point X.
Patent GB-1534189-A (GB)
Title: Data processing apparatus
IPC: G06F11/30
Filed: 1976-11-16
Abstract: 1534189 Monitoring storage accesses INTERNATIONAL BUSINESS MACHINES CORP 16 Nov 1976 [4 Dec 1975] 47656/76 Heading G4A A memory 12 or 32 is divided into envelopes 12a-12f or 34 each of which has an associated storage element 18 or 30 in which a time stamp from a clock 20 is recorded each time that envelope is accessed. Time stamp recording is automatic so that by reading the time stamps for particular memory elements a user can determine if any unauthorized access has been made since the last authorized access. Memory 12 may be a random access memory of which time stamp registers 18 form a part. Memory 32 may be a magnetic disc unit having two envelopes 34 and associated time stamp words 30 per track. The arrangement is described in detail in the context of a virtual memory system in which the time stamp registers 18 form an associative memory which is searched by block registers and stores time stamps together with indications as to whether the relevant accesses were for read or write. Any time stamp register 18 can be read by a special instruction FSM which loads the contents of the required register 18 into a specified register in the CPU 10. Each data channel 38 has a corresponding time stamp register 36 which is loaded with a time stamp word 30 whenever a disc envelope is moved via the channel to a memory 12 envelope (the appropriate register 18 and word 30 also time stamped from clock 20). The register 36 contents can be loaded into a specified CPU register by a special instruction FSC. Data envelope transfer between disc 32 and memory 12 takes place serially by word via a shift register buffer.
Patent GB-1372393-A (GB)
Title: Inert electrically-conductive member for an electrical capacitor
IPC: H01G11/22
Filed: 1971-10-14
Abstract: 1372393 Conductive laminates STANDARD OIL CO 14 Oct 1971 [28 Dec 1970] 47843/71 Heading B5N [Also in Divisions B2 and H1] An electron-conducting, ion-insulating inert member 14 for use in capacitors comprises an elastomer or polyethylene 15 loaded with 50- 200 parts wt. electrically conductive carbon black/100 parts wt. polymer, on at least one side of a metal or graphite substrate or a loose net or mat of non-conducting woven fibres, 16. The polymer composition may be coated on to the substrate or applied by calendering as a preformed layer, and may be 2-10 mils. thick. Specified elastomers are natural rubber and synthetic rubbers obtained from ethylene, propylene, isobutylene, butadiene, isoprene, chloroprene, styrene-butadiene, isobutyleneconjugated dienes, butyl rubbers, chlorosulphonated polyethylene, vinylidene fluoride polymers, ethylene-propylene terpolymers, nitrile rubbers, butadiene acrylo-nitrile polymers or thiokol rubbers. Specified carbon blacks include thermal blacks, channel blacks and ground blacks. Specified metal substrates which may be in the form of a screen are copper, brass, steel, niobium, tin, tin-plated steel, molybdenum, tantalum, zirconium, nickel or specified nickel alloys. Specified net or mat materials are glass, asbestos, carbon and cellulose. The metal substrate may be primed, e.g. with phenyl ethyl ethanol amine, trimethoxysilylpropethylene diamine, tetraethyl ammonium toluene parasulphonate, gamma amino propyltriethoxysilane or polyethyleneimine, before the elastomer is applied. The elastomer may be cured, e.g. by vulcanization. The Specification also discloses a separator 13 comprising two layers of isobutylene isoprene rubber filled with furnace black and conventional additives, one layer consisting of a microporous sponge with a porosity of 50-80% and the other layer consisting of a consolidated layer having a porosity of 1-3%.
Patent GB-1067193-A (GB)
Title: Improvements in or relating to tuyeres
IPC: C21B5/00
Filed: 1963-10-10
Abstract: 1,067,193. Tuyeres; feeding particulate material. KOPPERS CO. Inc. Oct. 10, 1963 [Nov. 5, 1962], No. 47928/66. Divided out of 1,067,191. Heading F4B. A water-jacketed tuyere has a tube 562 extending through the water jacket 552 to a recess 554 formed in the wall of the tuyere, for delivering particulate material to the furnace. The recess may have an abrasion-resistant shield or target 568 to deflect the material into the blast, or may open through the end wall of the tuyere. The tube may have an abrasionresistant liner.