baber/WOPTO huggingface dataset:
Patent GB-1237350-A (GB)
Title: Bag of plastics sheeting, for containing tobacco or the like
Inventor: FOCKE HEINZ
IPC: B65D75/68
Filed: 1968-06-14
Abstract: 1,237,350. Pouches. H. FOCKE. 14 June, 1968, No. 56344/70. Divided out of 1,235,861. Heading A4G. A bag formed of at least one layer of plastics sheet having a tearable strip 26, Fig. 2, of a different material from the sheet, e.g. paper, connected to opposed walls 12, 13 to form an air-tight closure of bag mouth 17, and a tearing filament 26 is adhered to the inside of the strip and extends to the inside where it may be pulled to tear the strip and open the bag. In the embodiment of Fig. 5, the strip 33a with inner filament 30 is connected to the outer faces of walls 12, 13 over the edge of wall 13, the walls being formed of paper sandwiched between plastics sheets. In a further embodiment the strip is formed by the sandwiched paper extending outside and beyond the edge 33a of the plastics sheeting. The wall extension 12a forms a wraparound closure flap and may have an adhesive tab.
Patent GB-1157629-A (GB)
Title: Improvements in or relating to Machines for Cutting Grass or other Vegetable Matter
Inventor: ROWLAND DAVID
IPC: A01D57/01
Filed: 1965-08-21
Abstract: 1,157,629. Lawn mowers. WILKINSON SWORD Ltd. 20 June, 1966 [21 Aug., 1965], No. 56509/68. Divided out of 1,157,626. Heading A1F. A lawn mower has an endless band 258, with a roughened surface, moving in front of the cutting cylinder 248 so as to engage and bend tall grass and allow it to spring up inside the cutting cylinder.
Patent GB-1167040-A (GB)
Title: Improvements relating to Door Mechanisms for the Exhaust Nozzles of Jet Propulsion Engines.
IPC: F02K1/12
Filed: 1966-12-16
Abstract: 1,167,040. Propulsion jet deflection. UNITED AIRCRAFT CORP. 16 Dec., 1966 [29 Dec., 1965], No. 56517/66. Heading B7G. A blow-in door 14 in the jet pipe 10 of a jet propulsion engine is normally free to move between two positions (shown in full line and dotted in Fig. 1) until an actuator 62 moves a linkage 50, 46, 44 to move the door and lock it in the open position (shown dotted) whence the actuator can move further, the actuator unlocking the door on its return movement. The further movement of the actuator is used to operate a thrust reverser of which the deflected jet outlet is provided by the locked open door. The free movement of the door 14 may be due to lost motion between a lug 76 on link arm 36 and a stepped cam 66 rotated by the actuator 62. The door 14 may be locked by the link 46 having end E at E<SP>1</SP>, just past " top dead centre," while cam follower 54 is at F<SP>1</SP> allowing cam 56 to pass, but being caught by cam 58 on the return movement of actuator 62. The door 14 may consist of two panels 16, 18 pivoting about points G and H respectively, and joined by a link 32. An alternative form of door is also described, Fig. 7 (not shown), and also a variation in the linkage whereby the door 14 is locked in the closed instead of the open position, Fig. 5 (not shown).
Patent GB-1392489-A (GB)
Title: Automatic door-closing device
IPC: E05F3/00
Filed: 1972-12-08
Abstract: 1392489 Spring door closers DORMABAUBESCHLAG GmbH & CO KG 8 Dec 1972 [14 Dec 1971] 56781/72 Heading E2M A spring door closer comprises a shaft 12 to be coupled with a door and interacting by way of a cam plate 18 with clamping means and with a spring 35, that part 20 of the cam plate which is operative between closed and normal open positions of the door having a constant rise so that a constant torque must be applied to open the door in this range, and that part 22 of the cam plate which is operative in the region of the normal open position having a steeper rise, so that a torque at least twice the said constant torque is needed in this range. The clamping means comprises piston (32), Fig I (not shown), non-return valve (36) and adjustable throttling means 43. Specification 1259030 is referred to.
Patent GB-1326060-A (GB)
Title: Flash device for a camera
IPC: H05B41/32
Filed: 1970-12-01
Abstract: 1326060 Electronic flash units CANON K K 1 Dec 1970 [1 Dec 1969(2) 2 Oct 1970(2)] 57048/70 Heading G2A [Also in Division H2] An electronic photographic flash unit comprises a flash lamp and a main, electrolytic capacitor adapted upon triggering to be discharged through the lamp, and comprises a temperature sensitive component adapted to simulate changes in the capacitance of the capacitor caused by changes in temperature and to indicate compensatory changes in the required exposure of a photographic film. In the embodiment shown in Fig. 2, a thermistor 117 is disposed in the base-emitter of transistor 114, the thermistor adapted to have a similar temperature charateristic to an electrolytic capacitor 106 charged via diode 113, from a source 107, to discharge upon triggering into a lamp 101. The output of the transistor 114 is connected in parallel with a photo-resistor 130 in series with an ammeter 128 which may be operationally connected with the iris of a camera lens and changes in the output impendence of the transistor 114 owing to temperature changes of the thermistor are monitored as changes in the lens aperture setting. The thermistor 117 may be connected in alternative ways with respect to the transistor 114 or an S. C.R. may be used, Fig. 3 (not shown). Alternatively, a thermistor 117, Fig.4, may be connected in series with an ammeter 201 across the terminals of a power supply P, the ammeter being adapted to display directly values of light intensity empirically determined for the tube/capacitor combination at various temperatures as simulated by the thermistor, and a manual adjustment of a camera may be made in the light of the reading. In a further alternative, Fig. 5 two neon lamps 300, 301 are connected, one between a junction of resistors R1, R2 and the other, R4, R5 respectively. A thermistor 117 is in parallel with R3 in series with R1, R2 and at normal temperatures, the voltage drop across R5 is greater than that across the R2, R3, 117 combination and lamp 301 ignites, at colder temperatures, the reverse is true. The lamps may be adapted to illuminate different points on a lens aperture scale. Similar apparatus is depicted in Fig. 7 (not shown), however a thermistor with a negative coefficient is connected in series with lamps (501), (502) which are consequently illuminated only when the capacitor (106) is charged to a higher potential when at lower temperatures, compensating for the larger voltage drop across the thermistor and for the decrease in capacitance of the capacitor (106). A similar embodiment employing a positive coefficient device is given in Fig. 8 (not shown). In the alternative of Fig. 9 (not shown) a bi-metal strip is adapted to rotate an exposure indicator dial according to temperature changes.
Patent GB-574922-A (GB)
Abstract: 574,922. Spark - gaps. ROTAX, Ltd., HENDRY, N., and LAIRD, J. A. June 19, 1944, No. 11645.. [Class 39 (i)] [Also in Group XXVII] A spark-gap, particularly for use in hightension ignition apparatus comprises the combination of a pair of massive main electrodes a,. a pair of small auxiliary electrodes g, h, associated with the main electrodes, one of which is connected to one of the main electrodes by a high resistance or capacity d, and a gastight envelope i enclosing the gaps between the main and auxiliary electrodes. The electrodes g, h are in the form of wire and a wire f is used to attach the element d to the outer end of the main electrode which has a tip of tungsten b.
Patent GB-1402529-A (GB)
Title: Magnetic turnover device
IPC: B21B39/30
Filed: 1971-12-10
Abstract: 1402529 Discharging elongate ferromagnetic articles from belt conveyers BRITISH STEEL CORP 8 Dec 1972 [10 Dec 1971] 57502/71 Heading B8A [Also in Division H1] Magnetic device for handling ferromagnetic materials of, e.g. elongate form comprises a groove 21 carrying an electromagnetic core 22 in end bearings 23; the core having eight polepieces 24 with serrated polygonal edge profiling (Fig. 2; Figs. 3, 4, not shown) and being energized by coils 26 surrounding the core between the polepieces energized over sliprings 27. A disc brake and calipers 28 operating on the core are fixed to the frame by block 29 also carrying the slipring contacts. The polepieces have a serrated edge profile giving six equiangularly spaced carrying positions for longitudinal members, e.g. channel, angle, bulb or flat sections, which may be loaded from endless belt 36 passing over offset pulley 37 and retained by the serrations. The electromagnet and the retained section rotate gravitationally to position 39, are arrested by braking, and de-energized to release. The rotation may be motor driven and the device may be end loaded. Plural such devices may be applied to a long section with assisting magnetic fields. Loading may alternatively be by pusher arms.
Patent GB-1283089-A (GB)
Title: Separating mixtures of stereoisomeric diaminodicyclohexylalkanes
IPC: D05B29/00
Filed: 1969-11-25
Abstract: 1283089 Separating diaminodicyclohexylalkanes BADISCHE ANILIN- & SODAFABRIK AG 25 Nov 1969 [26 Nov 1968] 57517/69 Heading C2C The trans,trans isomer content of a mixture of stereoisomeric diaminodicyclohexylalkanes is recovered by (a) forming the CO 2  reaction product of at least the trans,trans isomer by contacting the mixture of stereoisomers with CO 2 , heating the reaction product, in an inert diluent in which the CO 2  reaction product of the trans,- trans isomer is selectively less soluble at at least one temperature than the CO 2  reaction products of the other isomers and/or the isomers themselves, to a temperature from 110‹ to 200‹ C. at a pressure greater than the vapour pressure of the diluent and a CO 2  partial pressure of at least 0À1 atmosphere absolute, and (b) recovering the CO 2  reaction product of the trans,trans isomer by crystallization from the diluent, optionally after cooling the diluent. The trans,trans diamino-dicyclohexylalkane may be recovered from the crystallized CO 2  reaction product by heating the separated crystals of this product to a temperature of from 80‹ to 180‹ C. at atmospheric or reduced pressure. The remaining isomers of the original mixture may be rerecover from the mother liquor remaining after step (b) either by heating said mother liquor at atmospheric or reduced pressure to 80-180‹ C., or by passing an inert gas through the solution at slightly elevated pressure and recovering the isomers from the diluent by distillation. Examples are given which illustrate this process. The preparation of 4,4<SP>1</SP>-diisocyanatodicyclohexylmethane from the corresponding diamine is referred to.
Patent GB-1320749-A (GB)
Title: Devices for ascertaining revolution speed or speed change
IPC: G01P3/488
Filed: 1970-12-09
Abstract: 1320749 Tachogenerators DAIMLER-BENZ AG 9 Dec 1970 [16 Dec 1969] 58470/70 Heading H2A [Also in Division G1] A tachogenerator for measuring the rotational speed of a wheel comprises a stator and rotor assembly mounted on the wheel axle, wherein the spacing between the stator and rotor is maintained constant by spring pressure. As shown (Fig. 1), the stator 8, which is pushed on to the end of a wheel axle 4 and keyed by a lug 9 in a groove 6, carries a coil winding 11 in the shaped magnetic core 12, 8, 16. The rotor 14 is mounted on a bearing 13 on an extension of the middle limb 12 and biased against the stator by a leaf spring 23 whose free ends are located in grooves at the back of the rotor and whose centre is riveted at 24 to a cap 25 screwed to the wheel hub 26. The facing ends of the rotor 14 and stator 16 are provided with teeth 19, 17, the gaps and the surfaces being covered with a non-magnetic material 20, 18 to provide smooth sliding surfaces. The leads to coil 11 are taken out via a plug 30 which is part of the stator 8 and a socket 27, located inside the axle 4. An alternative assembly is described (Fig. 2, not shown) for use with a rotating axle. The rotor and/or the stator is magnetized and the amplitude and frequency of the voltage in coil 11 is proportional to the rotational speed.
Patent GB-1150480-A (GB)
Title: Automatic Dispensing Apparatus
IPC: A21C5/00
Filed: 1967-12-29
Abstract: 1,150,480. Delivering measured quantities of liquid. DCA FOOD INDUSTRIES Inc. 29 Dec., 1967 [9 Jan., 1967], No. 58989/67. Heading B8N. An apparatus for dispensing measured quantities of a material such as batter into containers 10 comprises a dispensing valve C mounted above a conveyer B carrying the containers, the actuation of the valve being controlled by means of sensor 106 for sensing the approach of a first container to the dispensing valve and generating a first signal indicative thereof, a first timing means TDR1 responsive to the first signal for causing the valve to dispense a first measured quantity into the first container after a predetermined time delay and a second timing means TDR2 for causing the valve to dispense additional quantities of material at predetermined intervals. The valve C which is mounted below a hopper 34 for the material includes a body 40 in which a shaft 56 spring-loaded wiper blade 70 is adapted to rotate and a rotatable valve member 54 arranged to co-operate with the surface of the shaft and an outlet 48; an orifice plate 50 is held in the outlet by means of a clamp device 52. With the valve parts in the position shown in Fig. 3, the material fills the space below the wiper blade. Upon rotation of the valve 54, by means of a ram 86 and gears 76, 82, Fig. 8, the outlet 48 is opened and communication with the hopper 34 is closed by the valve sealingly contacting the shaft 56. When the shaft 56 is rotated by means of a ram 84 and gears 74, 80 the wiper forces a measured quantity of material into a container 10. The cycle of operation is started when a container passes over the sensor 106, Fig. 9, thereby actuating the timer TDR1 so that as the container reaches a position under the dispensing valve a switch is actuated to first energize a counter C1 and then operate the dispensing valve as described above. The cycle will not restart until a second container is sensed by the sensor 106. If the counter Cl is set to more than one count and the switch LSI actuated, a second timer TDR2 is operated and the apparatus will continue to dispense measured quantities as previously described until the counter counts out. The travel of the piston rod 94 of the ram 84 may be varied by means of an adjustable stop (96, Fig. 7) in order to vary the volume of material dispensed.
Patent GB-1449896-A (GB)
Title: Method for driving a plasma display panel
IPC: G09G3/291
Filed: 1973-12-19
Abstract: 1449896 Matrix displays and circuits therefor FUJITSU Ltd 19 Dec 1973 [29 Dec 1972] 58993/73 Heading G5C [Also in Division H1] In driving a gas discharge panel having crossed conductor arrays insulated from the gas by dielectric layers and greater secondary electron emission from one surface in contact with the gas than from the other; the write voltage makes the conductor adjacent the surface with the greater emission negative with respect to the other conductor. The higher electron emission is attracted to the opposite surface and allows the use of lower write voltages. These may be positive and negative pulses V WC , V WR  separate from the sustain voltage or pulses V w /2 and-V 0 /2 may be applied simultaneously with a sustain pulse. The difference in electron emission may be due to different dielectric materials or thicknesses, the addition of a fluorescent or protective layer over one dielectric, electodes of different width or pitch resulting in different field concentration.
Patent GB-1291106-A (GB)
Title: 3-methoxy-18-methyl-1,3,5(10),6,8-oestrapentaen-17-one and process for its manufacture
IPC: C07J1/00
Filed: 1969-12-08
Abstract: 1291106 3-Methoxy-18-methyl-1,3,5(10),6,8- estrapentaen-17-one SOBERING AG 8 Dec 1969 [6 Dec 1968] 59715/69 Addition to 1,226,777 Heading C2U The title compound is prepared by brominating and dehydrobrominating 18-methyl-8(9)- dehydro-estrone methyl ether.
Patent GB-1279479-A (GB)
Title: Kaolin pigments and methods of producing the same
IPC: C09C1/00
Filed: 1969-12-10
Abstract: 1279479 Kaolin pigments GEORGIA KAOLIN CO 10 Dec 1969 [10 Dec 1968] 60262/69 Heading C1A A kaolin pigment which comprises thin platelike particles, having an equivalent spherical diameter of at least 2 microns, an average aspect ratio of thickness to diameter of 20 : 1 and which is substantially free of stacks (claimed per se) is produced by subjecting a kaolin clay having a particle size of at least 5 Á equivalent spherical diameter to intense shearing forces to delaminate the stacks, separating out particles of less than 2 Á equivalent spherical diameter, and drying and pulverizing the resulting product. In an embodiment of the process a kaolin slurry of particle size 10-30 Á equivalent spherical diameter is subjected to shearing forces, and particles smaller than 2 Á separated out, and the remaining particles subjected to further more intense shearing forces, separating out particles smaller than 2 Á, drying and pulverizing to produce the desired product. The product is claimed per se.
Patent GB-1332410-A (GB)
Title: Device for indicating that a refrigerated objects has undergone rewarming
IPC: G01K11/06
Filed: 1971-12-31
Abstract: 1332410 Temperature indicators ARTECH CORP 31 Dec 1971 [ 31 Dec 1970] 60941/71 Heading G1D A device for indicating, for example, whether a frozen food package has been previously allowed to thaw and then re-frozen comprises a sealed envelope 10 in which is arranged a frangible container 18 housing a temperature responsive material 20, an indicating material 16 which is arranged adjacent to the container and which exhibits colour change when placed in contact with the temperature responsive material, and also an arrangement for applying an external force to the container, the device being such that when attached to an article of food to be frozen the temperature responsive material, which is initially in liquid form, freezes when the freezing temperature of the food is reached and in freezing expands to break the frangible container whereby the arrangement applying a force to the container will ensure that as a result of any thawing of the food (and also the frozen liquid) liquid will leave the broken container to co-act with the indicating material and provide an irreversible colour change thereof. The container may be of wax or plastics material and the indicating material 16, which may surround the container or may be flat, may be in the form of an absorbent layer impregnated with chemicals to produce the colour change when acted upon by the temperature responsive material. The arrangement applying the force to the container may comprise a deformed polyurethane foam pad 22, a spring, a gas filled envelope, a resilient ring or resilient fingers supporting the container in abutment with the interior wall of the sealed envelope 10. The sealed envelope 10 may be of transparent plastics material and the temperature responsive material may be water possibly containing additives such as potassium chloride for lowering the freezing point, hydrochloric acid for producing colour change reaction, silver chloride for providing a crystallization catalyst and sodium carboxymethylcellulose for viscosity adjustments. The device may comprise a plurality of containers having different temperature responsive materials therein.
Patent GB-1223930-A (GB)
Title: Apparatus for the production of steam for humidifying air
Inventor: LEHMKUHL KRISTOFER
IPC: F24H1/00
Filed: 1968-12-24
Abstract: 1,223,930. Electrode boiler. K. LEHMKUHL. 24 Dec., 1968 [29 Dec., 1967], No. 61329/68. Heading H5H. An air humidifier comprises a multiphase electrode boiler 1, the electrodes 4 of which are made of acid proof stainless steel which has a smooth corrosion resistant surface e.g. 18/8 chrome nickel steel having a molybdenum content of 2À5%, and are relatively arranged to carry the same electrical load. Each electrode 4, which may be a perforated plate or a wire mesh, is bent at an angle of 60 degrees about its terminal 8 so that one leg lies within one leg of one of the further electrodes and the other leg lies outside of one leg of the other of the further electrodes. The container 1 is made of polypropene or plastics coated steel to provide a smooth easily cleaned surface. Fresh water is supplied to boiler 1 from an additional container 18, the containers 1, 18 being mounted on opposite ends of a parallel motion linkage 36, 37 so that the vertical spacing between the containers may be adjusted by a screw 38 to vary the water level in the boiler. A float 27 in container 18 is sealing connected via bellows 7 with a vertically adjustable switch 26 which controls a solenoid valve 24 in the supply conduit 22 to maintain the water level constant. A float (35) operated safety valve 25 is maintained closed by the supply conduit pressure even when the water level subsides to a safe level and can only be reopened manually by removing the lid of container 18. Periodically the container 1 is emptied by opening a solenoid valve 4 in the outlet 19 and closing valve 24 in the supply conduit 22. Deposits on the container 1 and electrodes 4 are then washed off by means of a nozzle 43. The washing operation may be controlled by a timer at fixed intervals or by means of a deposit detector comprising a pair of electrodes 41, 42 in the bottom of the container. Alternatively the deposit detector may merely supply a visual indicator e.g. a lamp whose brightness diminishes as the deposit builds up
Patent GB-1291717-A (GB)
Title: Improvements in or relating to impact crushers and roller mills
IPC: B02C13/286
Filed: 1969-12-17
Abstract: 1291717 Impact pulverizers; roller mills; vibratory screens HAZEMAG HARTZERKLEINERUNGS-UND ZEMENTMASCHINENBAU GmbH 17 Dec 1969 [3 Jan 1969] 61527/69 Headings B2A and B2H [Also in Division B8] A chute 7 for acentrifugal impact pulverizer 1 or roller mill has a surface formed by bars 7' lying side-by-side and individually vertically adjustable by means of screws 19. The screws are protected by an angle member 20, and adjustable by opening a flap 21 in the mill casing. The bars are pivotally mounted at their upper ends and for this purpose each bar has a recess 15 at each end, which engages a bar 14 of a cross-shaped member 16. The bars are thus reversible to accommodate wear. The member 16 is adjustable longitudinally by spindles 17. The bars of the chute 7 may be spaced so that the chute serves as a grating and in this case it may be vibrated. The size of ground material is regulated in the usual way by adjustment of baffle plates 8, 9. The bars may be made of an elastic material such as rubber or plastics. A grinding grate 13 is provided under the impact rotor 3. In a second embodiment each bar may be of articulated construction.
Patent GB-1256018-A (GB)
Title: Improvements in and relating to fluid drive coupling
IPC: F16D35/02
Filed: 1969-12-19
Abstract: 1,256,018. Hydraulic couplings. AISIN SEIKI K.K. 19 Dec., 1969 [21 Dec., 1968], No. 62122/69. Heading F2C. In a shear type fluid coupling for driving a radiator cooling fan wherein a disc 11 fast with a driving shaft 14 is coupled by a fluid film to an output housing 26, 41 divided by a partition 31 into a working chamber 25 and a reservoir 33, discharge and inlet ports (50, 51) provided in the partition on the leading and trailing sides of an impact pump projection 39 are controlled by a valve strip 43 in response to ambient temperature. The valve strip 43 is carried by a shaft 44 the rotational position of which is controlled by a spiral bi-metallic strip 46. The valve strip 43 opens the discharge port 50 and closes the inlet port 51 at low temperature whereupon the impact pump projection 39 pumps liquid out of the working chamber into the reservoir. At high temperature the valve strip 43 closes the discharge port 50 and opens the inlet port 51 through which liquid flows back into the working chamber to increase the coupling effect. The casing 26 is provided with cooling fins 30. In Fig. 6 (not shown) an impact pump projection fast with the valve strip passes through an elongated slot in the partition which forms both the inlet and discharge ports.