baber/WOPTO huggingface dataset:
Patent GB-1266872-A (GB)
IPC: F02M59/46
Filed: 1968-07-01
Abstract: 1,266,872. Fuel injection pumps. C. A. V. Ltd. June 13, 1969 [July 1, 1968], No.31261/68. Heading F1A. In a rotary cylindrical distributer type fuel injection pump having cam actuated plungers a spring-loaded valve element 26 is disposed in a cylinder 25 in each of the outlets 15, the end of the cylinder remote from the distributer 11 being in communication with a source of constant pressure. On the injection stroke the element 26 is moved against the spring to uncover a groove 27 communicating with a pipe line 22 to the injection nozzles 23, the movement being limited by a peg 28. On completion of the injection stroke, and with the outlet 15 and delivery passage 14 still in communication, the fuel pressure falls until at a predetermined value the element moves to cut off groove 27, thus stabilizing the pressure in the pipeline. Continued inward movement of the element occurs during which fuel is forced from the cylinder into the delivery passage thus maintaining the pressure in the passage. By minimizing the pressure variations in the pipeline 22 and passage 14 variations in delivery volume are limited.
Patent GB-1288820-A (GB)
IPC: F01B11/08
Filed: 1970-12-23
Abstract: 1288820 Electric correspondence control GRUNDIG E M V ELEKTRO-MECHANISCHE VERSUCHSANSTALT INH MAX GRUNDIG 23 Dec 1970 [23 Dec 1969] 61234/70 Heading G1N [Also in Division F1] Apparatus for controlling the positions of the lower and upper working pistons 1, 2 enclosing combustion space 3 in an opposed piston engine having hydrostatic movement converters with hydraulic pistons 6, 7, rotary converter 10, driving shaft 11 and fluid control valves 12, 16 acting on fluid columns 8, 9 comprises transducers 18, 19 providing from respective synchronous rectifiers 20o, 20u, correspondence error signals, related to the difference between piston position and driving shaft angular position for each working piston, which are fed to change-over switch 25 which, at a predetermined engine speed, changes to receive piston dead-point error signals from a differential transformer, 28-34, thereby to control the fluidpressure in columns 8, 9 in accordance with deadpoint error, that for the upper piston being corrected in accordance with that for the lower piston. Transducers 18, 19 are A.C. resolvers and engine speed is measured by comparing the time between two dead-point signals from transducer 21 with a calibrated timing circuit or with the signal from a reference oscillator 24 so that when a predetermined speed is reached switch 25 is actuated. The signal from the lower piston deadpoint transducer 21u is fed to a mixer 27 where it is inverted and added to the signal from the upper piston dead-point transducer. Further details of the control circuits are given in Figs. 5-7 (not shown) and it is stated that by superimposing an appropriate direct voltage upon the output voltage from the differential transformer the compression ratio in the cylinder may be varied at will.
Patent GB-1295922-A (GB)
IPC: D05B51/00
Filed: 1970-09-04
Abstract: 1295922 Needle thread take up SINGER CO 4 Sept 1970 [10 Sept 1969] 42370/70 Heading D1G Needle thread take-up mechanism in a lock stitch sewing-machine comprises an element 53 having a universal pivotal connection 71 with the machine frame, a universal pivotal connection 59 with a rotating actuator 46, an arm 87 projecting from the element and offset from a line joining the pivot centres being formed with a thread eyelet 89. The other arm 51 of the element includes a cylindrical pin slidable freely in the ball cap 57, a spring washer 63 being interposed between flange 55 and cap 57. The universal pivot at 71 comprises a clevis 79 from which extends a stud 73 rotatably retained in a bushing 67 which may be adjusted in its block 65 to vary the path of motion of the eyelet 89. The path of the latter is non-planar and is also affected by the selection of angle A between the arms of the element.
Patent GB-1302451-A (GB)
IPC: H02K17/04
Filed: 1970-07-29
Abstract: 1302451 Winding arrangements for electric motors GENERAL ELECTRIC CO 29 July 1970 36741/70 Heading H2A In an A.C. motor stator the end turns 32 of the distributed main winding do not extend around the full circumference of the end face of the core so as to leave a segment of the end face free of end windings and available for engagement by mounting pads. An induction motor stator for use in a compressor unit includes a two pole distributed main winding accommodated in nine large core slots 16 on either side of the main polar axis 21, 22, and a two-pole auxiliary starting winding accommodated partly in small slots 17, 18 straddling the axis 21, 22 and partly in some of the slots 16 containing the main winding. In the segment of the core embracing the small slots 17 there are no end turns 32 of the main winding and the end turns of the auxiliary winding are kept radially inwardly of the outer periphery of the slots 17, leaving the required exposed area on the end face. The pole axes 43, 44 of the auxiliary winding are offset by less than 90 degrees E from the poles axes 21, 22 of the main windings, and the number of turns per slot of both windings changes from slot to slot.
Patent GB-1305612-A (GB)
IPC: F02D41/10
Filed: 1970-11-10
Abstract: 1305612 Fuel injection systems JOSEPH LUCAS (INDUSTRIES) Ltd 5 Nov 1971 [16 Nov 1970] 53489/70 Heading G1N In an I. C. engine intermittent fuel injection system having at least one electromagnetic  injection valve energized by engine triggered pulses having a duration dependant upon at least one operating variable, means including an electrical winding and a magnetic member, one of which is connected to the engine throttle control, are provided for generating an electrical signal which when acceleration is required, initiates additional valve energizing pulses to increase the amount of fuel supplied by the injection valve. As shown, two groups of injection valves 10 are provided with respective pulse generators 12 which are triggered by a device 18 and supplied with variable D. C. voltages V1, V2 to control the pulse durations. The winding and magnetic member device, 28, which may be linear is partcircular, Figs. 2 and 3 (not shown). supplies its electrical output signal to an amplifier 30 whose output depends upon rate and/or amount of throttle movement, dependent upon the size of capacitor C1 in relation to resistor R2. The amplifier output is applied to four pulse generators 32 having different senitivities so that the number operated depends upon the throttle movement. The outputs of these generators 32 are applied to trigger the injection valves in addition to the pulse generators 12 thereby supplying extra fuel. The amplifier output is also applied to modify the voltage V2 to thereby increase the duration of the pulses of generators 12. The voltage V2 is also applied to the generators 32 to thereby control the duration; of their pulses.
Patent GB-1312507-A (GB)
Title: Cross-country sporting appliance
IPC: A63C17/10
Filed: 1970-06-10
Abstract: 1312507 Skate J KAISER 10 June 1970 28012/70 Heading A6D A cross-country sporting appliance for securing on a person's foot has runner members supported through runner elements on a guiding body circulating in an endless runway on the body, several runner elements being provided in one runner frame, while projections at both sides of each runner member embrace longitudinal endless edges of the guiding body. In the Figures, guiding body 1 forming a runway strip 4 guides runner members 2 connected to one another by an endless band 16. Each runner member comprises a runner frame supporting rollers or sliding pieces which run along runways 5a on runway strip 4. Foot binding 3 enables attachment of the appliance to a shoe for cross country 'running'.
Patent GB-1312772-A (GB)
Title: Automatic packing device and packing method for pallet stocks
IPC: B65B61/06
Filed: 1969-06-03
Abstract: 1312772 Pulling hoods over stacks INGENIORFIRMAET BORGE CHRISTENSEN and INGENIORFIRMAET HANS HANSEN 24 Aug 1970 [3 June 1969] 28056/69 Heading B8C A collapsed tubular hood having longitudinal folds 6d and inwardly folded sides 6b, 6c is erected by gripping and pulling apart the folds 6d and is then pulled over a stack of goods on a pallet 28. A collapsed tubular web 6 is withdrawn from a roll 4 by upper and lower feed rollers 8, and has a plurality of transverse welded seams and perforations forming a series of separable hoods, a hood being separated from the web 6 by braking the upper feed rollers 8 while the lower rollers continue to run. The lower rollers 8 are then braked to hold the hood level with a pair of frames 12 which are then moved towards each other by air cylinders 20 until suction cups 14 engage the folds 6d, the suction cups 14 then being slightly retracted to open the hood a little and hold the folds 6d against fixed rods 16a. Air cylinders 22 then pivot rods 16 to grip the folds 6d. The frames 12 are then moved apart, being guided by rollers 18 running on rails 19. During erection, air can be directed into the hood by air jets (not shown). The frames are then lowered to draw the erected hood of the goods on the pallet 28, the hooded pallet then being passed to a shrinking oven.  In a second embodiment (Fig. 3) the lower rollers 8 are replaced by welding tools (7) and a cutter (9), in which case the web 6 is unseamed and unperforated. In a third embodiment (Figs. 5-7) the frames 12 are replaced by bars (32) which diverge from beneath the rollers 8 and then run down the four corners of the stack. Each pair supports a series of opposed rollers (33) for engaging and advancing the folds 6d. (For Figures see next page.)
Patent GB-1314908-A (GB)
Title: Control of electronic flashlight apparatus
IPC: H05B41/32
Filed: 1970-07-09
Abstract: 1314908 Electronic flash-light control FRANKE & HEIDECKE GmbH [trading as ROLLEIWERKE FRANKE & HEIDECKE] 9 July 1970 33435/70 Heading G2A An electronic flash tube 1 is energized from a storage capacitor 4 by the ignition of a thyristor 3, a photo-electric integrating measuring device 7 producing a quenching impulse when it has received a certain quantity of light reflected from the subject, the impulse being applied into the discharge circuit by a repeater or connecting device 5, 6 so as to quench the thyristor. The repeater or connecting device produces a current in the discharge circuit opposite to the discharge current.
Patent GB-1315225-A (GB)
Title: Process for preparing a coating of decorative cement
IPC: B05D5/06
Filed: 1971-09-13
Abstract: 1315225 Waterproofed cement coatings ASAHI GLASS CO Ltd and BONNTILE CO Ltd 13 Sept 1971 42660/71 Heading B2E [Also in Division El] A process for preparing a coating of decorative cement, for example to the wall of a building, comprises firstly applying a solution or emulsion of a first synthetic resin to form a water impermeable film on a substrate; secondly coating a fluid, pasty composition prepared by mixing a hydraulic cement, an aggregate powder and a pigment and kneading the mixture; and thirdly coating a layer of a second synthetic resin on the cement layer to form a cured film. If the substrate has a smooth surface a further layer is applied before or immediately after the first synthetic resin layer, which further layer comprises a syntheic resin containing an aggregate. The first synthetic resin, which may be applied by spraying, comprises a polymer of vinylacetate or acrylate or an epoxy resin, or a copolymer of vinylacetate with acrylate or vinylchloride with ethylene. The fluid pasty composition which may be applied by spraying or spreading as a Portland and/or alumina cement mixed with siliceous, sand, ash, diatomaceous earth, or slag, which mix may contain a water repellent such as an aliphatic acid salt, e.g. aluminium stearate, a hardening accelerant such as KNO 3 , AlCl 3 , or CaCl 2 , or a softening agent such as methylcellulose or carboxymethylcellulose. The second resin which may be brushed on may be an acrylate or methacrylate polymer or a copolymer thereof or a copolymer of either with an unsaturated acid or certain given derivatives thereof, e.g. acrylic methacrylic, vinylbenzoic, sorbic, crotonic or vinylcrotonic acid, or with another monomer such as vinyllacetate, styrene, vinylchloride, butadiene, acrylonitrile or vinylidene chloride. A plasticiser may be added, such as dibutyl- or dioctylphthalate. The further layer may comprise a polymer of vinyl acetate, acylic resin, epoxy resin or an emulsion of a synthetic rubber mixed with cement, siliceous sand or stone powder. An additional final coat of a transparent, water repellent, acrylate or silicone paint may be applied to the second synthetic resin layer. The substrate may be concrete, mortar, slate, stone, wood or metal such as iron.
Patent GB-1316282-A (GB)
Title: Testing tricyclic compounds
IPC: C12Q1/02
Filed: 1970-04-17
Abstract: 1316282 Testing for pharmacological activity D WILKIE 19 April 1971 [17 April 1970] 18431/70 Heading A5B A tricyclic compound is tested in vitro to compare its psychotropic activity with that of known tricyclic compounds by a process comprising determining the degree to which the compound inhibits growth of non-respiratory deficient yeast cells by blocking the uptake of oxygen in a medium containing pyruvate or a pyruvate precursor, and comparing it with the degree of inhibition of growth of the same yeast under the same conditions by a tricyclic compound known to be active in vivo. The yeast may be Saccharomyces Cerevisiae. In a preliminary test the compound being tested is added to an agar gel-glycerol medium and the yeast cells put on to the solid gel so formed. Compounds active in this test are then tested for inhibition of respiratory function by a method comprising adding the yeast cells to aqueous glycerol buffered to pH7, and measuring the rate of oxygen uptake of the system with and without added tricyclic compound by means of an oxygen electrode. For quantitative testing of the tricyclic compounds, an aqueous glycerol medium is used, and the rate of growth of the yeast cells in the presence of various concentrations of the compound being tested are observed by direct count of yeast cells under the microscope, or by measurement of the optical density of the medium using a spectrophotometer.
Patent GB-1325548-A (GB)
Title: Seal
IPC: F16J15/16
Filed: 1970-11-26
Abstract: 1325548 Vacuum chambers KODAK Ltd 26 Nov 1970 [1 Dec 1969] 58597/69 Heading FIX [Also in Divisions F2 and F4] A seal for use between two zones at different pressures when transporting material 14 (e.g. a web coated with liquid or adhesive) comprises a passageway 18 in communication with each of the two zones and means for transferring gas out of or into the passageway for progressively changing the gas pressure along the passageway from the pressure at one zone to the pressure at the other. As shown, the web 14 slides over a polished steel arcuate surface 13, preferably treated with P.T.F.E., into a vacuum chamber 11 and a clearance gap is maintained between the coated side of the web and a shoe 17. The shoe is adjustable and consists of ribs 19 and troughs 20 which are connected via radial apertures 21 and one or more manifolds 24 to one or more vacuum pump so as to reduce the pressure of the air travelling with the web through the passageway 18 progressively as the web passes successively past the troughs; the pressure drops may be controlled by use of valves or by pump or aperture adjustment. Rubber seals may be provided along the sides of the passageway 18 and the tips of the ribs 19 may be grooved. Alternatively, the surface 13 may be defined by a roller which is sealed in the wall of the vacuum chamber 11. When the web is coated on both sides, it is necessary to provide a flat passageway with a ribbed shoe mounted on both sides. In Fig.2 (not shown), a web of photographic material bearing a chilled undried hydrophilic colloid layer is transported into and out of a vacuum drying apparatus provided with heaters 26; the web may be chilled, if desired as it is transported by cooling the surface 13 with water circulation.
Patent GB-1327994-A (GB)
Title: Vehicle screw jacks
Inventor: WALTERS J E
IPC: B66F3/12
Filed: 1972-06-19
Abstract: 1327994 Vehicle jacks METALLIFACTURE Ltd 19 June 1972 [16 July 1971] 33410/71 Heading B8J  A vehicle jack comprises a base 1 of channel section in which extends a screw 2 having two screw portions 3, 4 of opposite hand. A nut 9 is threadably mounted on each portion 3, 4 and each nut 9 is pivotally connected respectively, to a lifting arm 10, 11 of channel section. The two arms 10, 11 are pivotally connected to a lifting bracket 12 by bolts 13, 14 which have a metallic insert 16. The ends of the arms 10, 11 have interengaging teeth 15. The arm 10 is slightly longer than the arm 11 so that, on rotation of the screw 2 the side of the vehicle (not shown) to be raised follows an arc of radius substantially equal to the axial distance between the wheels.
Patent GB-1330320-A (GB)
Title: Fastener assemblies
IPC: F16B31/02
Filed: 1970-10-12
Abstract: 1330320 Applying predetermined tension to a bolt MAC LEAN-FOGG LOCK NUT CO 12 Oct 1970 48365/70 Heading F2H A fastener assembly for clamping together two members 30, 31 with a predetermined and limited tensile load comprises a bolt 27, a collar 10 and a nut 14, the collar fitting around the nut and having a threaded part which is designed to be ruptured from the collar at a predetermined shear stress, the load being transferred at that stage from the collar to the nut. The collar 10 is preferably hexagonal and has a threaded extension 11 with a cylindrical outer surface 18, the collar also having counterbores 12, 13, the diameter of bore 13 being at least as large as the external diameter of surface 18. Nut 14 is housed in bore 12 and has a cylindrical or preferably hexagonal portion 15 and a cylindrical portion 16, indentations 22, 23 frictionally holding nut 14 in bore 12. In use, the collar 10 and nut 14 are threaded on to the bolt 27, a tool driving collar 10 which consequently frictionally transmits drive to nut 14. Lower surface 24 of nut 14 and lower surface 25 of collar 10 contact member 30 approximately simultaneously, and continued rotation of collar 10 applies pressure to the joint members 30, 31, nut 14 following collar 10, but applying no force to surface 34. When a predetermined clamping stress is reached extension 11 is sheared from collar 10 at comers 20, 21, relieving the clamping stress, members 30, 31 relaxing against nut 14 which then takes up the clamping action. Extension 11 is then further threaded on to bolt 27 to jam against nut 14, whereupon collar 10 may be removed or left in place as desired.
Patent GB-1332325-A (GB)
Title: Device for holding a roll of carbon ribbon for supply through  a typewriter ribbon guide
IPC: B41J11/62
Filed: 1970-06-16
Abstract: 1332325 Ink ribbon mechanism SPINK & BEECHING (SALES) Ltd 5 Oct 1970 [16 June 1970] 29173/70 Heading B6F A free standing carbon ribbon dispenser for standing alongside a typewriter comprises a foot 3 in which the typewriter stands, a plate 1 carrying a boss 6 which carries a carbon ribbon spool 7, and a plurality of guide openings 16, 18, 19 through any one of which the ribbon can pass to the typewriter, the one chosen being at substantially the correct height for the typewriter being used. The ribbon spool 7 is covered by a cap 10 having an exit slot (12, Fig. 3, not shown), which can be attached to the boss 6 in four different positions.
Patent GB-1336997-A (GB)
Title: Spray nozzle
IPC: B05B15/55
Filed: 1971-06-18
Abstract: 1336997 Spray producers FISONS Ltd 18 June 1971 [7 July 1970] 32776/70 Heading B2F Free flow of solidifiable material through an atomising nozzle 2 is ensured by an annular jet of steam, issuing from between members 2 and 6 and injection of a gas or vapour at 4. When spray-drying a hot concentrated aqueous solution of ammonium phosphate, steam is also applied at 4. Alternatively, the nozzle may be used for flash evaporation on prilling.
Patent GB-1338761-A (GB)
Title: Filters
IPC: D21D5/04
Filed: 1971-04-19
Abstract: 1338761 Filters A J WALKER 19 April 1971 [18 Feb 1970] 7754/70 Heading B1D An inclined screen filter for separating solids from liquids comprises a flat screen 19, e.g. of nylon mesh, mounted on a hopper 8 and supported inclined to the horizontal on a surrounding framework 1. Baffles 20 are fitted transversely across the under side of the screen to reduce the flow of filtrate down the under side of the screen due to surface tension. The filter screen together with side walls 21 and framework 17 is in the form of a removable unit. Liquid to be filtered enters tank 2 via duct 3 and valve 4 and then flows under baffle 5 and over weir 6B and is delivered to the screen via shoot 6. Filtrate is collected in hopper 8 and leaves via opening 8B and trough 22. Hopper 8 is pivotally mounted at 9 so that the inclination of the screen may be varied by rachet bar 10. Sediment slides down the screen and falls into collector 24. The surface of the screen is periodically washed by sprays 31, a mechanism being described which automatically and periodically causes both the sprays to operate and also causes spray bar 30 to pivot so that the sprays rake over the screen surface, e.g. between the limits 'x' and 'y'. The screen may be vibrated (Fig. 5 not shown) by means of the incoming fluid flowing over a reed (52) fast to the frame of the screen, the reed being caused to vibrate by the liquid's passage. Alternatively vibratory wave energy may be imparted to the incoming fluid material before it reaches the screen.
Patent GB-1342581-A (GB)
Title: Metal-impregnated refractories
IPC: F28F13/00
Filed: 1970-01-14
Abstract: 1342581 Composite casting DIDIERWERKE AG 13 Jan 1971 [14 Jan 1970] 1744/70 Heading B3F [Also in Division C1] A porous refractory body comprising more than 50 wt. per cent alumina or magnesia is impregnated, with aluminium or silicon. In the former ease the refractory is immersed into liquid aluminium at 1250‹ C., the impregnation being assisted by application of vacuum followed by pressure.
Patent GB-1348806-A (GB)
Title: Coaxial connectors
IPC: H01R13/646
Filed: 1971-05-20
Abstract: 1348806 Coaxial connectors C & S ANTEN-  NAS Ltd 15 May 1972 [20 May 1971] 16106/71 Heading H2E A coaxial connector has an outer shell 10 of synthetic material, e.g. glass filled nylon, and a metal liner 30 which projects slightly from the end surface of the shell, the connector being provided with watertight sealing means. As shown the connector has a back nut 18 also of  glass filled nylon screw-threaded on to shell 10 and having a seal 28. As the back nut is screwed. up flange 20 forces compression seal 24 on to the outer covering or conductor of a cable, whilst flange 19 forces screw threaded collar 26 on to the cable outer conductor which is connected to flange 32. An 0-ring 38 seals the mating ends of shells 10 and 10<SP>1</SP> which are bolted together by means of flanges 12 and 12<SP>1</SP>. Shell 10 and liner 30 may have holes therein to enable dry gas to be introduced into the connector. Seals 22, 24, 26 may be replaced, e.g. with plain collars or opposed frusto-conical section rings.