baber/WOPTO huggingface dataset:
Patent GB-2012874-A (GB)
Title: Rotary Positive-displacement Fluid-machines
IPC: F01C21/08
Filed: 1978-12-06
Abstract: A machine, such as a gas compressor, comprises a chamber defined by a cylinder (4) and two side blocks (5, 6). A rotor (7) is mounted in the chamber. Vanes (12) are slidably mounted in radial slots (11) in the rotor. A housing (2) surrounds the chamber. Lubricant is fed to the chamber from a reservoir in the housing pressurised by the high- pressure working fluid. Dynamic pressurising of the lubricant between the end walls of the chamber and the adjacent side faces of the rotor is promoted by recesses (13) formed in the said end walls or side faces. <IMAGE>
Patent GB-2013224-A (GB)
Title: Iodophore Compounds
IPC: C08G63/00
Filed: 1979-01-04
Abstract: The invention concerns iodophores. These are the products of reaction of iodine or other iodine- supplying compounds with an organic polycarbonate which is itself prepared by reacting an organic hydroxy compound acting as initiator (especially an alkyl phenol or polyalkoxylated derivative thereof), with an alkylene oxide and carbon dioxide. The iodophores are useful as bacetericides.
Patent GB-2020898-A (GB)
Title: Piezoelectric vibrator
IPC: H03H9/13
Filed: 1979-04-05
Abstract: A piezoelectric vibrator (20) which comprises a piezoelectric element (22) including a main vibrating region and a spurious vibrating region. A principal driving electrode (24, 26) is formed on each surface of the main vibrating region of the piezoelectric element, and a spurious vibration reducing auxiliary electrode (28, 28') is formed on each surface of the spurious vibrating region, with the principal electrodes (24, 26) and the auxiliary electrodes (28, 28') forming a united energy trapping zone (32) within the piezoelectric element (22) to reduce spurious vibration in the spurious vibrating region. As an alternative to metal film electrodes, preferably covered with an insulating layer, electrodes may be formed by locally doping areas of a semiconductor layer on the vibrator to increase their conductivity. The principal and auxiliary electrodes may each be divided in two. <IMAGE>
Patent GB-2025596-A (GB)
Title: Panel-mounted indicator lamp
IPC: G09F13/20
Filed: 1979-05-17
Abstract: A light emitting assembly attachable to a display panel (101) includes clip means defining spring fingers (112) projecting rearwardly at the side of a light source as for example an LED neon tube or filament bulb 100. The fingers define first grooves (113) to receive a boss (108) on the light source, and second grooves (114) to receive portions of the display panel adjacent a panel opening (111) into which the clip member is inserted. The spring fingers also define first cam surfaces (120) rearwardly of the first grooves and angled to be spread by the light source boss in response to forward insertion of the source through the clip member and into a lens cap (110) integral with the clip means. Masks may be employed between adjacent caps arranged in a row. <IMAGE>
Patent GB-2031659-A (GB)
Title: Pole changing induction electrical machines
IPC: H02K17/06
Filed: 1979-08-30
Abstract: An induction electrical machine has a ferromagnetic core with a number of slots wound with concentric coils. In each of two phases A and B the coils have the same number of turns. Each slot contains 0, n or 2n conductors of phase A; and O, krn or 2krn conductors of phase B; where 2n is the number of turns in a phase A coil, 2krn the number of turns in a phase B coil, and kr the winding ratio of B to A. The coils are variably interconnected in two or preferably three different ways to give two or three different pole numbers. At one pole number, preferably the highest or lowest of three pole numbers, the coils produce a two-phase winding, Fig. 11a, whereas at the or each other pole number coils from the two phases are used equally and combined as a single phase winding, Figs. 11b, 11c (Fig. 11c not shown). <IMAGE>
Patent GB-2037100-A (GB)
Title: High-frequency heater
IPC: H05B11/00
Filed: 1978-12-08
Abstract: PCT No. PCT/JP78/00043 Sec. 371 Date Sep. 11, 1979 Sec. 102(e) Date Sep. 11, 1979 PCT Filed Dec. 8, 1978 PCT Pub. No. WO79/00562 PCT Pub. Date Aug. 23, 1979.A composite heating apparatus provided with means for both high frequency dielectric heating and resistance heating. At the start of cooking, all the input power is supplied to the heater to accelerate the rise of the temperature in the heating chamber, and the power input to the heater is automatically controlled when the temperature in the heating chamber reaches a predetermined temperature to maintain the temperature in the heating chamber constant. At the same time, the high frequency generator is operated at comparatively low output. This makes possible the simultaneous cooking by dielectric and resistance heating even in areas not favored with a satisfactory power supply situation on the one hand and, on the other hand, is expected to contribute to energy saving in areas favored with a satisfactory power supply condition.
Patent GB-2033967-A (GB)
Title: Improvements in or Relating to Pumping Devices
IPC: F04B45/073
Filed: 1979-09-26
Abstract: A pump for supplying air to a patient is operable either manually, or automatically by a pulsating gaseous pressure supply. The pump comprises a flexible outer membrane 3 which envelops a self-expanding inner membrane 2 to form a chamber 4 therebetween. Pulsating pressure is applied to the chamber 4 thereby to expand and contract the pumping chamber within the inner membrane 2. The inner membrane 2 has inlet and outlet valves 5 and 6. The pump can be operated manually by the application and release of pressure to the outer membrane 3. <IMAGE>
Patent GB-2033829-A (GB)
Title: Hollow fibre dialysis membrane
IPC: D01D5/20
Filed: 1979-10-02
Abstract: A hollow fibre of cellulose regenerated from cuprammonium solutions for use as a dialysis membrane has a continuous cavity and a surface which is formed with periodic changes in shape in the longitudinal and/or circumferential direction thereof. Longitudinal changes are produced by changing the rate of flow of material from the spinneret. Circumferential changes are produced by a shaped spinneret orifice. <IMAGE>
Patent GB-2033123-A (GB)
Title: Alarm system
IPC: G08B27/00
Filed: 1979-10-16
Abstract: An alarm system comprises a plurality of similar assemblies 3 each having a transmitter 1 and a receiver 2, adapted respectively to transmit on and receive from conductors 8 such as electric mains wiring. At least one pre- recorded message can be generated by a tape loop device 4 on actuation of a detector or switch 5, to be transmitted from one alarm location to the receivers of all the other assemblies at their respective alarm locations. <IMAGE>
Patent GB-2037869-A (GB)
Title: Plastics Tie
IPC: F16L3/233
Filed: 1979-10-18
Abstract: A one-piece tie of plastics material has a flat head 14 through which the strap 12 passes, after looping around a bundle of cables for example, for its serrations 13 to interlock with the teeth 22 of a pawl which is pivoted at one end 18, the strap being introduced through the head from the pivoted end of the pawl, and increasing back-tension in the strap, after the tie is tied, causing the strap to pivot the pawl so as more firmly to grip the strap. <IMAGE>
Patent GB-2033238-A (GB)
Title: Hockey Stick
IPC: A63B59/12
Filed: 1979-10-22
Abstract: The hockey stick has a head portion 1 with a rounded depression 3 on the impact face for improving ball control. A method of making such hockey sticks from glass fibre reinforced foam is also disclosed. <IMAGE>
Patent GB-2062023-A (GB)
Title: Open-end spinning apparatus
IPC: D01H4/00
Filed: 1979-10-23
Abstract: An open-end spinning apparatus comprises an opening roller system 34 for feeding fibres in a feed duct 41 to the throat formed between the adjacent peripheral surfaces of two parallel drums 1 rotating in the same direction. Yarn formed at the throat, by frictional contact between the fed fibers and the surfaces, is withdrawn along the throat. The fibre feed duct is arranged to feed the fibres in a direction inclined to the yarn axis and with a component of motion opposite to the direction of yarn withdrawal. A suction opening in the duct in the wall facing away from the drums causes an additional airstream across the duct parallel to the yarn axis to turn the fibres to a direction nearer parallel to the yarn axis. One of the drums is perforated for suction through its surface, the other is imperforate and formed with a resilient surface of a rubber material.   <IMAGE>
Patent GB-2034265-A (GB)
Title: Devices for Mooring a Floating Installation to an Offshore Installation
IPC: B63B22/02
Filed: 1979-11-14
Abstract: A device for mooring a ship (1) to a buoy or column (2) anchored by lines (3) comprises a connecting arm (6) provided with roller means including wheels (11, 11a, 11b, 11c) which bear on a cylindrical portion of the outer wall (16) of the buoy (2). Belts (such as 23) encircling the buoy (2) and the roller means are tensioned to press the wheels (11 to 11c) against the cylindrical surface (16) and permit rotation of the arm (6) relative to the buoy (2). <IMAGE>
Patent GB-2039740-A (GB)
Title: Vapor dispensing device
IPC: A01M1/20
Filed: 1980-01-15
Abstract: A dispensing device for dispensing air fresheners, insecticides, and other air-treating vapors having an upstanding enclosure 12 made of folded flexible sheet stock and having two upstanding opposed primary dispensing walls 14, 16; one or more structural members 24 within the enclosure to provide reinforcing dimensional stability between the primary walls and releasably holding a vaporizable composition, and air flow channels 34 from one dispensing wall to the other. Preferred embodiments relate to variations in the structural member(s), the specific materials used, a barrier used to prevent loss of vaporizable composition by wicking a cover 38, and an impermeable film tightly wrapped therearound. <IMAGE>
Patent GB-2042553-A (GB)
Title: Cross-linked cellular elastomers
IPC: A63B59/04
Filed: 1980-01-17
Abstract: A cross-linked cellular elastomer is made from the reaction of one or more natural and/or synthetic rubbers, a cross-linking agent and a monomeric metallic salt of an ethylenically-unsaturated carboxylic acid and is expanded with a blowing agent. The metallic salt is preferably basic zinc methacrylate. The elastomer may be used to provide a core for a tennis-ball or a sponge for a table-tennis bat. The former use enables advantage to be taken of the properties hitherto only found in pressurised playballs, whilst the latter use leads to a marked increase in the speed of the ball when struck by the bat.
Patent GB-2069184-A (GB)
Title: Strand feeding system
IPC: H02P7/295
Filed: 1980-01-30
Abstract: A loom or other strand utilising means is fed with strand at a substantially constant average rate by operating a strand feeding device 16, 30 through electric drive means 22 to advance the strand from a strand supply 12, and wind said strand on the part 16 of said feeding device for discharge thereafter to said utility means whilst forming a balloon 98 in said advancing strand intermediate said strand supply and said feeding device, controlling said drive means to operate said feeding device 30 to withdraw said strand from said strand supply at a second, higher, substantially constant predetermined rate to allow strand to accumulate on said feeding device, detecting said accumulation by a feeder 90, interrupting the current flow to said drive means when the amount of strand on said feeding device exceeds a predetermined amount, and maintaining the balloon in said strand when the current flow is interrupted. The drive motor is energised from a d.c. supply via an S.C.R. (thyristor) controlled in response to the difference between an actual speed voltage (derived from the frequency of pulses) and a desired speed voltage set at 78. This setting is chosen so that interruptions by detector 90 are too brief to allow the balloon to be lost. <IMAGE>
Patent GB-2049870-A (GB)
Title: Monodirectional torque- transmission gear
IPC: F16H1/00
Filed: 1980-03-04
Abstract: A stepping motor causes a driving pinion (1) to rotate by steps of 90 DEG , the stopping position being such that a driven pinion (4) is blocked with a very small backlash by the pressure of a tooth (5) of the driven pinion against the top face (8) of one of the teeth (2) of the driving pinion. Both pinions have simple teeth with conventional profiles capable of being cut by means of a worm-hob. The pitch of the driving pinion is between one and two times that of the driven pinion, and the layouts of the teeth are such that the arc along which a tooth of the driving pinion engages the teeth of the driven pinion includes a portion traversed freely and a portion along which the driving pinion rotates the driven pinion by one step of its toothing. <IMAGE>
Patent GB-2075564-A (GB)
Title: Sliding gates
IPC: E05D15/06
Filed: 1980-03-29
Abstract: A sliding gate assembly has rollers (38) mounted on a fixed support (32) and cooperating in an upper horizontal track secured behind or formed by upper contiguous elements (12, 24) of main and auxiliary frames (10, 22) of the gate. Stabilizing rollers (42) are mounted on a spreader member (40) and cooperate with a lower horizontal track to prevent the gate from tilting. <IMAGE>
Patent GB-2045366-A (GB)
Title: Automatic locking clutch
IPC: F16D47/04
Filed: 1980-04-01
Abstract: A clutch for engaging a driving axle (10) with a driven hub (14) automatically upon application of torque to rotate the axle in either direction, for maintaining engagement in either the drive or coast mode of operation and during the transition between drive and coast, for maintaining engagement in either forward or reverse operation and during the transition between forward and reverse, and for disengaging automatically upon interruption of the torque and slight relative rotation of the hub and the axle. The clutch includes a wrapped spring type brake (84) for developing high frictional drag on cam (52) upon initial rotation of the axle to cause member (42) to shift axially and relieve the action of spring (40) on clutch member (34) and drive the latter into engagement with clutch member (28) via teeth (36, 32), the brake spring being relaxed upon subsequent rotating of the axle to conserve power. The clutch also includes a preloading spring (44) so that if engagement should be blocked, it will be completed automatically when the blockage is relieved. The clutch further includes a detent mechanism (90) tending to resist initial rotation of the axle so that a false torque signal does not cause engagement. <IMAGE>
Patent GB-2065100-A (GB)
Title: Production of sodium or potassium alkoxide
IPC: C07C29/70
Filed: 1980-04-01
Abstract: Sodium or potassium hydroxide is reacted with a compound which contains an alcoholic hydroxyl group but does not contain other groups which react with strong bases and calcium oxide in the presence of a suitable surface active agent. The surface active agent is preferably cationic, nonionic or amphoteric containing cationic groupings. The surface active agent causes the reaction to proceed much more rapidly and the formed alkoxide remains in solution with calcium hydroxide being formed as a precipitate which can be easily separated from the solution.
Patent GB-2045303-A (GB)
Title: Impregnation tank for wood
IPC: B27K5/02
Filed: 1979-09-06
Abstract: When impregnating wood in a pressure container the container is filled with impregnation fluid so that the wood is covered. When draining off the impregnation fluid after the treatment, the impregnation fluid will leave stripes in the surface of the wood. In order to obtain an efficient and even impregnation means (6) for holding the wood (13) are placed in the container (1), which means (6) as well as the wood (13) can be brought in rotation around the longitudinal axis of the container (1). The means (6) for holding the wood (13) consist of a frame with a quadrangular cross section through which the impregnation fluid (12) can flow. The frame (6) is provided with devices (14) for fastening the wood (13) to one or more sides of the frame (6) as well as wheels (11) for supporting the frame (6). During rotation of the frame (6) the wheels (11) roll on the inner side of the pressure container (1).
Patent GB-2059707-A (GB)
Title: Power-on reset circuit
IPC: H03K3/356
Filed: 1980-08-26
Abstract: A power-on resetting circuit for an integrated circuit arrangement, comprising four transistors interconnected to come into conduction in a predetermined sequence as the supply voltage rises to its normal operating level to provide a resetting pulse output. Initially, output 8 is at VSS. As VDD rises transistor 1 becomes conductive allowing capacitor 9 to charge until transistor 3 conducts and point 8 rises to VDD. A further rise in VDD turns on transistor 4 and point 8 returns to VSS terminating the reset pulse. <IMAGE>
Patent GB-2082665-A (GB)
Title: Latch mechanism
IPC: E05B65/10
Filed: 1980-08-29
Abstract: A latch mechanism (10) for a panic door (11) has a housing (12) a pair of translatable operating members (15) in the housing (12) each connected to a respective bolt (18), and a pivotable member (21) engaged with the operating members (15) and connected to an actuating member (25) by a shaft (22) and a scroll drive (23, 24). The actuating member (25) can be moved axially of shaft (22) by a lever in the form of a pivoted plate (26) to cause rotation of pivotable member (21) and translation of operating members (15) to withdraw the bolts (18) from sockets in a door surround. <IMAGE>
Patent GB-2085329-A (GB)
Title: Moveable workpiece carriers for e.g. mounting components on printed circuit boards
IPC: B23P19/00
Filed: 1980-10-14
Abstract: On many occasions it is desirable that a physical action be performed by automatic equipment the total manipulative capability of which is to be shared between a workpiece carrier (the platform which carries the device being assembled or worked on) performing relatively fine movements and a main manipulator mechanism (that part of the equipment which fits each new component into place, or effects the required operation upon the device being worked on) performing relatively coarse movements. The present invention concerns a novel type of workpiece carrier, suitable for use in such a system, which workpiece carrier includes a workpiece support member (12), for a printed circuit board (13), mounted for movement in a plane upon one or more mounting member (11) each of which is resiliently deformable in any direction parallel to the plane but essentially rigid in a direction normal thereto, there being in addition a base member (10), upon which the support member (12) is mounted by means of the or each mounting member (11), and drive means (20, 21, 22), whereby the support member (12) may be driven into a chosen position within its plane of movement. <IMAGE>
Patent GB-2068717-A (GB)
Title: Chairs
IPC: A47C31/12
Filed: 1980-11-04
Abstract: A chair, particularly a chair for use when operating data display apparatus, and adjustable between an "upright working" position (Fig. 2), a "relaxed" position (Fig. 6) and a "leaning forward gripping" position (Fig. 7), comprises a base (3), a seat portion (5) pivotally supported on the base and a back rest portion (20) pivotable with respect to the seat portion, a spring member (22), e.g. a gas spring, kinematically coupling the seat portion (5) and the back rest portion (20). A first pair of links (7, 11) has first ends (8, 9) pivotally connected to the seat portion (5) and second ends (12, 13) pivotally connected to the back rest portion (20). A second pair of links (6, 14) has first ends (23, 8) pivotally connected to the seat portion (5) and second ends (4, 16) pivotally connected to the base (3). <IMAGE>
Patent GB-2064976-A (GB)
Title: Crystal refining apparatus
IPC: B01D9/00
Filed: 1980-11-21
Abstract: A crystal refining apparatus of a single erect tower construction for refining crystalline feedstock comprises, in a serial relationship one upon another in the vertical direction, three or more unit cylinder subassemblies having a specific transversal cross- sectional shape of two or more circles with their centers offset away from each other so that the circles may overlap partly with each other, the unit cylinder subassemblies each incorporating therein an agitating and conveying element held at its lower and/or upper end to the end of each of the unit cylinder subassemblies, wherein a unit cylinder subassembly disposed at the top of the apparatus is provided with a heating element to melt crystalline feedstock disposed at the upper part thereof and a discharging outlet to discharge refined crystal at the upper side thereof, a unit cylinder subassembly disposed at the bottom of the apparatus is provided with a supply opening to supply crystalline feedstock to be refined disposed at the lower side thereof and a separating element to separate solid and liquid at the bottom end thereof, whereby it is possible to adjust the total height of the apparatus as desired.
Patent GB-2091847-A (GB)
Title: Water Dispenser for small animals
IPC: A01K7/06
Filed: 1981-01-26
Abstract: In a water dispenser for feeding small animals comprising a casing, water supply means having an outlet, valve means 12 for controlling water feed disposed in the outlet, and a water feed tube 9, a guard tube 15 fixed at one end to the casing encompasses and extends along the feed tube, whereby the feed tube is protected against undue external forces and its angular deflection is limited, the guard tube further functioning as a drip pan to catch any excess or unused water dispensed by the feed tube and to conduct the water outside of a cage or pen housing the small animal. <IMAGE>
Patent GB-2125518-A (GB)
Title: Gas inlet device for pressure vessel
IPC: B67D1/08
Filed: 1981-07-24
Abstract: An inlet device for use with a domestic brewing keg, to enable gas to be introduced from a pressurised cylinder, comprises a tubular body 10 defining an inlet 24 adapted to receive a nose portion of a gas cylinder. An externally threaded insert 28 is mounted in the body to provide an abutment with which the cylinder nose portion can be forcibly engaged to cause release of gas from the cylinder. A screw-driver slot 32 enables removal of the insert for substitution by another of different form. The alternative insert is suitable for use with a cylinder of the kind comprising a breakable seal, the insert comprising a protruding piercing tube. <IMAGE>
Patent GB-2084124-A (GB)
Title: Improved graphite X-ray tube target
IPC: C23C16/26
Filed: 1981-08-27
Abstract: A rotating anode x-ray tube target substrate composed of graphite is coated with pyrolytic carbon to prevent separation of particles from the surface of the substrate. A method of depositing the pyrolytic carbon is described.
Patent GB-2084786-A (GB)
Title: Variable sensitivity optical recording medium and information record
IPC: G11B7/243
Filed: 1981-09-21
Abstract: A variable sensitivity optical recording medium comprising a substrate (12) having a series of indentations (32) in a major surface (14) and having a covering, including at least an absorptive layer (36), overlying the substrate with the covering filling the indentations thereby forming first and second regions of different respective thicknesses in the optical recording medium where the recording sensitivity of the first regions is greater than the recording sensitivity of the second regions. Various other layers may be included between the substrate (12) and an overcoating (46) to enhance the recording medium. The invention also includes an information record having an information recorded therein as a series of the first regions having different optical properties from the remainder of the first regions and from the optical properties of the second regions. <IMAGE>