baber/WOPTO huggingface dataset:
Patent GB-1265418-A (GB)
IPC: F16D25/10
Filed: 1969-08-20
Abstract: 1,265,418. Friction clutches. BORGWARNER CORP. 20 Aug., 1969 [3 Sept., 1968], No. 41647/69. Heading F2C. In an hydraulically-applied multi-plate friction clutch, or brake, inadvertent application of the clutch due to the effect of centrifugal force acting on the residual fluid in the clutch apply chamber 72 is prevented by an opposing force due to centrifugal force acting on lubrication fluid in a balance chamber 85 on the opposite side of the apply piston 33. The chamber 85 also houses return springs 86. As shown, a pair of friction clutches 50, 51 connect an input shaft 12 to respective shafts 13, 14, apply pressure in clutch 50 being relieved, on clutch disengagement, by a conventional centrifugal ball valve 60. The clutch plates may be flat or dished to assist separation. The apply chamber 72 is charged from a passage 61 in the driving housing 20 and the chamber 85 by lubrication fluid from the annular space between the shafts 13 and 14, and radial bores 90, 91 in the shaft 14 and housing 20 respectively.
Patent GB-1266679-A (GB)
IPC: B41N1/24
Filed: 1970-04-17
Abstract: 1,266,679. Thermographic transfer processes. COLUMBIA RIBBON & CARBON MFG CO. Inc. April 17, 1970 [May 9, 1969], No. 18391/70. Heading G2C. A thermographic transfer process for producing stencils comprises exposing an assembly of an original, a transfer sheet comprising an ink permeable paper support coated with an inkimpermeable layer of an thermoplastic composition which softens without melting to a flowable condition between 200 and 500‹ F. and a receptor sheet having a heat-tackifiable coating which is in contact with the thermoplastic layer and so that the heated areas of this layer are entirely transferred to the receptor sheet to leave a stencil on the transfer sheet. The thermoplastic composition may be a vinyl chloride or vinylidene chloride polymer or copolymer and may contain pigments, fillers or heat-meltable solids as in Specification 1, 204, 567. Alternatively the composition may be an acrylic polymer, polystyrene, cellulose ethers or esters, or butadiene/acrylonitrile copolymer and may contain a plasticizer. The composition is preferably applied as an aqueous dispersion. In the example, a Japanese paper support is coated with a layer of butadiene/styrene copolymer, overcoated with another butadiene/styrene copolymer layer containing salicylic acid and placed in contact with areceptor sheet coated with a layer of styrene/butadiene polymer containing clay. The assembly is imagewise exposed to heat and the heated areas of the salicylic acid layer are transferred to the receptor sheet. This layer may contain a dye so that the transferred image is a viable positive image of the original.
Patent GB-1266746-A (GB)
IPC: G01N33/36
Filed: 1969-06-17
Abstract: 1,266,746. Waft stop motions; checking shuttles. LOEPFE A.G. GEB. 17 June, 1969 [17 June, 1968; 24 Oct., 1968; 30 April, 1969], No. 30630/69. Heading DIE. [Also in Division G1] Apparatus for detecting motion or immobility of a weft yarn 20 in a loom comprises a ceramic plate 21 on which the yarn rubs in motion, and a conductor 22 on which electrostatic charges are induced which charges are fed to amplifying and processing circuits (not shown). A similar device is also used to determine the precise moment of ending of motion of a gripper shuttle (11) Fig. 4 (not shown) after it enters a braking device (14, 15, 16).
Patent GB-1267190-A (GB)
IPC: F23N5/10
Filed: 1971-02-16
Abstract: 1,267,190. Safety arrangement for gas burners. MACLAREN CONTROLS Ltd. 16 Feb., 1971, No. 4726/71. Heading F4T. A safety interlock arrangement prevents opening of a main gaseous fuel valve by a solenoid until a safety valve, energized by a thermoelectric generator associated with a pilot flame, is closed after the pilot has failed. A solenoid 108 energized through contacts 105, 107 holds open a main fuel valve and a push button 101 closes a valve to cut off fuel and breaks the circuit through solenoid 108 by moving contact 105 to a latched position. Restoring means operate at the breaking of the circuit through solenoid 108 to free contact 105 and remake the circuit through solenoid 108 after the thermoelectric generator has become ineffective, following pilot flame failure, to energize a second solenoid to hold open the flame failure safety valve. Contact 105 is mounted on tongue 103 consisting of bimetallic parts 103a, 103b, part 103a being heated by element 109, which forms the restoring means which operates when contact 105 is in the latched position, the bimetallic strip having thermal inertia such that the supply to solenoid 108 is not remade until the thermoelectric generator cools sufficiently to cause the safety valve to close. The tongue 103 is made in two parts 103a and 103b so that variation of the ambient temperature does not substantially alter the position of contact 105. The latch 104 may be magnetic. In another embodiment (Fig. 2, not shown) the tongue 103 is not bimetallic, remaking of the circuit to the first solenoid being effected by mechanical means actuated when the thermoelectric generator has cooled sufficiently.
Patent GB-1288899-A (GB)
IPC: B25C1/18
Filed: 1971-04-19
Abstract: 1288899 Explosively-actuated fastener-driving tools OLIN CORP 19 April 1971 [12 June 1970] 45632/71 Divided out of 1288897 Heading B4C The apparatus forming the subject-matter of the invention is the same as is described in the Specification 1,288,897 but the claims relate to the pellet feed arrangement.
Patent GB-1296331-A (GB)
IPC: H04N1/23
Filed: 1971-04-30
Abstract: 1296331 Doped ZnO KANSAI PAINT CO Ltd 30 April 1971 [12 May 1970] 12547/71 Heading C1A [Also in Divisions C3 and D2] ZnO is doped with a tri- or tetravalent metal having an ionic radius <0À74 Š, e.g. Ga, Al, Fe, Cr or Sn. Doping may be effected in one of two ways: (a) a water soluble zinc salt, e.g. Zn(NO 3 ) 2  is mixed with a minor proportion of a water soluble salt of the doping metal, e.g. Al(NO 3 ) 3  and the two co-precipitated as hydroxide, dried and then calcined, e.g. at 1300‹ C. (b) Alternatively in the slurry method solid ZnO is added to an alcoholic soln. of the doping metal and after stirring for 1 hour the mixture is filtered, dried and then calcined.
Patent GB-1296695-A (GB)
IPC: G10K11/16
Filed: 1969-11-28
Abstract: 1296695 Acoustic layer GRUNZWEIG & HARTMANN AG 28 Nov 1969 [30 Nov 1968] 58234/69 Heading F2X An acoustic layer for absorbing liquidpropagated sound, comprises a plurality of absorber elements in the form of separate cells in a supporting structure, in which the absorber cells are in the form of single or multi-circuit resonant elements having a membrane 13 which is coupled with a part 12 that does not participate in the vibrations of the membrane via a cavity 14 containing a liquid, e.g., silicone oil, which within a wide frequency band and independently of temperature, matches the acoustic impedance of water, and having one or more further cavities 15 containing a compressible medium located adjacent and communicating with the liquid-filled cavity. The compressible medium is air or sponge rubber. The membrane 13 is elastomeric and may include compressible inclusions. Inward projections may be provided on the liquid-filled cavity side of the membrane. The resistance to flow of the liquid into and out of the cavity 15 in response to vibrations of the membrane is increased by the slit 18 (or a mesh 17, Fig. 7, not shown) and by the incorporation of papers or fibres in the liquid filled cavity. The separate cells may be supported by springs on a wall (Fig. 1, not shown), or in a layer of plastics or elastomeric material supported by a glass fibre mesh (Fig. 2, not shown), or between two films adhesively secured to a wall (Fig. 3, not shown), or in a mesh (Fig. 4, not shown).
Patent GB-1297765-A (GB)
IPC: G01L5/00
Filed: 1971-08-05
Abstract: 1297765 Measuring force CINCINNATI MILACRON Inc 5 Aug 1971 [6 Aug 1970] 36895/71 Heading G1N [Also in Division G4] The useful force or torque generated by a motor (i.e. total force less losses) is estimated from measurements of the total force or torque generated by the motor and the motor velocity. For a hydraulic motor, the pressure drop across the motor may be measured to give the total force signal; for an electric motor, the armature current may be measured. The total force signal is modified to allow for dynamic and frictional losses and integrated to produce an "estimated velocity" signal which is compared with the actual velocity signal to give the output signal, which is also fed back to the first input. In Fig.7, the total force signal 66 is applied to an integrator 102, which integrates the algebraic sum of all its input signals. Potentiometer 88 attenuates the output of integrator 102 in accordance with the inertia of the motor. Feedback via operational amplifier 104 subtracts a signal of polarity dependent on the direction of the motor and magnitude representative of frictional losses of the motor. Feedback via operational amplifier 108 subtracts a signal representing viscous friction. The resulting "estimated velocity" signal is compared at 110 with the measured velocity signal 64 to give the output signal 78. Potentiometer 100 is for adjusting loop gain, and potentiometer 95 is for modifying the output signal in accordance with the mechanical advantage of the transmission (e.g. gear box). The potentiometers are set empirically during a test run on no load to achieve a zero output at 78 as detected on an oscilloscope, whatever the speed, direction or acceleration of the motor.
Patent GB-1303975-A (GB)
IPC: E06B7/00
Filed: 1971-02-08
Abstract: 1303975 Ventilating painted timber R F BAXENDINE 8 Feb 1971 4203/71 Heading F4G [Also in Division E1] A painted window frame 1 (or floor board, skirting board, garden shed or fence) is allowed to "breathe" by forming in it a hollow which is covered by an apertured cover. The hollow comprises a blind hole 3 (or may comprise a slot) receiving a tube 8 perforated at 11, and an opening covered by a cover 5 formed with one or more inclined elongated slots 6 to restrict the entry of rain. Silica-gel crystals 16 are retained between the ends 14 and 17 of the tube 8. An annular groove 10 accommodates sealing compound or putty. The tube 8 may be open-ended and shorter than the hole 3.
Patent GB-1309819-A (GB)
Title: Thermistor controlled overload protection circuit
IPC: H02H3/08
Filed: 1970-06-03
Abstract: 1309819 Overload protective arrangements ALLEN-BRADLEY CO 3 June 1970 26748/70 Heading H2K  An overload protective arrangement for a motor or other device comprises a bidirectional A.C. switch, e.g. a triac 8, in the operating circuit of a relay coil 1 or other device, a D.C. supply 11, 12 to provide a gating signal to the switch 8, a signal gating device, e.g. a silicon controlled rectifier 18 to shunt the gating signal from the switch 8 when rendered conductive by the change in resistance of a thermistor 22 heated, e.g. by a heater 23, in response to over load current. Resetting may be effected by closing a manually operable switch 24 to divert current from the rectifier 18. Alternatively, the primary winding of the transformer 11 may be connected as indicated at 27, 29 so that the opening of holding contacts 7, when the coil 1 is de-energized, effects automatic resetting. The thermistor 22 may have a positive temperature coefficient and be connected as shown or a negative temperature coefficient and connected in place of the resistor 20. The switch 8 may be a quadrac and the device 18 may be a triac, quadrac or an equivalent transistor circuit.
Patent GB-1312961-A (GB)
Title: Method and apparatus for burning liquefied petroleum gas
IPC: F23K5/02
Filed: 1970-01-13
Abstract: 1312961 Liquefied petroleum gas burner SHELL-MEX & BP Ltd 19 April 1971 [13 Jan 1970] 1606/70 Heading F4T A method of burning liquefied petroleum gas (LPG) comprises delivering LPG under a pressure greater than its equilibrium vapour pressure to at least one liquid fuel burner, discharging LPG from the burner(s) in the liquid state, terminating the supply of LPG and purging LPG from the burner(s) with an inert, non- combustible gas. The apparatus for carrying out the above method comprises an LPG storage vessel 1, a pump 5 which supplies fuel from the vessel 1 to a liquid fuel burner 3 via a conduit 2, an isolating valve 29 located in the conduit for controlling the fuel supply, and an inert gas injection means positioned downstream of the valve 29 for purging the conduit 2 and burner 3 after closure of valve 29 has terminated the fuel supply. The LPG and inert gas are preferably butane and nitrogen respectively, the injection means comprising a nitrogen container 32 and isolating valve 38. A further valve 30 is located downstream of the injection means for trapping, after purging, a plenum of nitrogen in the conduit between itself and valve 29, thus preventing leakage of LPG to the burner 3. The conduit 2, and also a return flow conduit 15, further incorporate pressure reducing valves, pressure regulating valves, additional isolating valves, a filter 12, and, if pump 5 is of the reciprocating type, an accumulator 23. Ignition may be effected manually, Fig. 2, or automatically, Fig. 3, not shown. In the latter embodiment propane gas is used for a pilot flame, the pilot and main flames are monitored and the purge period is limited by a timer. (For Figures see next page)
Patent GB-1314677-A (GB)
Title: Reinforced dies for hot-pressing of materials
IPC: B23P15/24
Filed: 1969-11-18
Abstract: 1314677 Carbon fibre reinforced die UNITED STATES BORAX & CHEMICAL CORP 18 Nov 1970 [18 Nov 1969] 56499/69 Heading C1A A hot pressing die, wherein hot pressing is defined as sintering a powdered material in a die under conditions of high temp. and pressure, is reinforced with carbon fibres which are wound round the periphery of a hollow former of carbon which former although a die has a strength insufficient to withstand hot pressing. The former or the fibres may be coated with resin before the former is wrapped and the resin may be cured and subsequently pyrolysed. Alternatively, the wrapped former may be impregnated with resin and pyrolysed as above. Exemplified resins are epoxy, phenolic or furanbased resins, or polyester resins. The resin may be pyrolysed by heating at a rate of from 5‹ to 20‹ C. per hour up to a temp. of 750‹ C. in an inert atmosphere.
Patent GB-1316090-A (GB)
Title: Container
IPC: B65D5/02
Filed: 1969-08-07
Abstract: 1316090 Box pallets ASHTON CONTAINERS Ltd 30 July 1970 [7 Aug 1969] 39518/69 Headings B8H and B8P A container comprises walls 10-13 folded from a blank, and flaps 17, 18 hinged to opposed walls 10 and 11 and forming the container base with the other walls 12, 13 being extended beneath the base of the container and folded to form channel shaped supports to maintain the base off the ground. On either side of the flaps 17, 18, and flaps 20, 23 are hinged to the walls 10, 11 and extend through the channel shaped supports. A reinforcing panel may rest on the base and have its ends folded to fit into the channel shaped supports. There may be an external reinforcing member between the supports with optionally its middle portion folded and reinforced to form a third tubular support for the container. A door flap may be provided in wall 11 and after the container is filled may be stitched to an adjacent wall. The container may have a lid or closure flaps. The container may be made from corrugated board or plastics material. Reference has been directed by the Comptroller to Specification 1181130.
Patent GB-1320767-A (GB)
Title: Safeload indicating system for cranes and the like
IPC: B66C23/90
Filed: 1970-10-08
Abstract: 1320767 Crane safety devices B & A ENG CO Ltd 13 Sept 1971 [8 Oct 1970] 48006/70 Addition to 1310012 Heading B8B The apparatus described with reference to the drawing accompanying the Provisional Specification of Specification 1,310,012 is modified by making the movable fulcrum responsive to change in operating radius and applying the supplementary force to the first lever by means responsive to the change in jib angle (instead of vice versa).
Patent GB-1322183-A (GB)
Title: Method and apparatus for depositing liquids on sheet material eg  printing
IPC: B41F15/10
Filed: 1969-09-23
Abstract: 1322183 Stencil printing apparatus McCORQUODALE COLOUR DISPLAY Ltd 3 Sept 1970 [23 Sept 1969] 46884/69 Heading B6C The colour chart screen printing machine of Specification 1,053,663 is modified to receive successive sheets from either side of the machine. Whilst a sheet from table 57 is being printed positioned beneath colour box 10 a sheet from table 56 is being located in place beneath the box for imaging during the next, i.e. return stroke of a carriage 11, 12 which carries suitable impression rollers. The machine is automatically operated by levers and linkages and pneumatic devices controllable from a rotating cam-wheel 15.
Patent GB-1326666-A (GB)
Title: Hair brushing and drying device
IPC: A45D20/52
Filed: 1971-09-16
Abstract: 1326666 Brushes L J RUSSELL 16 Sept 1971 [11 Aug 1971] 37736/71 Heading A4K [Also in Division A5] A hair drying and brushing device comprises a brush 2 rotatably mounted on a handle 1 which carries a lever 3 for rotating the brush 2, and a dryer 5 on a support 4 mounted on the handle 1, the dryer being spaced from the brush and arranged to direct air from a supply tube 16 at the brush in a direction transverse to the rotational axis of the brush. The lever 3 rotates about the handle through less than a full turn and a spring may be provided to return the brush to a start position after release of the lever. Alternatively, the lever 3 may be arranged to drive the brush through a ratchet mechanism. The angular position of the support 4 about the handle 1 is adjustable. The brush 2 is readily removable for replacement by one of a different type.
Patent GB-1332186-A (GB)
Title: Process for transparent photographic images
IPC: G03C1/705
Filed: 1970-10-07
Abstract: 1332186 Photographic process ITEK CORP 7 Oct 1970 47608/70 Heading G2C A photographic metal image on a pellucid support is prepared by (1) photo-exposing a removable layer of photo-sensitive material in a solvent-removable binder on a pellucid support, (2) physically developing to form in the exposed areas a metal image adherently bonded to the support, and (3) removing the photosensitive layer. In the examples, a roughened or subbed polyester or cellulose triacetate support is coated with a layer of TiO 2 , Ag Cl, Ag Br or a ferric or azo compound in polyvinyl alcohol is used, the layer being removed by washing after physical development; the Ag Cl/polyvinyl alcohol emulsion may be prepared by mixing aqueous polyvinyl alcohol solutions of Na Cl and Ag NO 3  and treating the product ultrasonically.
Patent GB-1335574-A (GB)
Title: Data transmission system
IPC: H04L5/14
Filed: 1970-12-23
Abstract: 1335574 Digital transmission; master and slave systems KOMBINAT ROBOTRON VEB 19 Jan 1971 61130/70 Heading H4P A data transmission system comprises a transmitter connected by data-carrying lines to a receiver, there also being lines carrying transmission control signals (RUF, END). Either the transmitter or the receiver may initiate transmission of data by transmitting a control signal RUF, the called unit reporting the end of data transmission by returning a control signal END. At any instant the state of either control line is either 1 or 0. Dependent upon the present combination of states (00, 10, 01, or 11) the transmitter and receiver perform particular corresponding operations, e.g. the preparation of data or the transmission of data, there being further lines and associated equipment for carrying out these functions. Additional lines may carry parity signals, signals indicating the manner in which the data signals are to be interpreted, and signals indicating whether the called unit is in the required state.
Patent GB-1348770-A (GB)
Title: Footwear
IPC: A43B3/00
Filed: 1969-12-04
Abstract: 1348770 Boots &c W BOTTERILL & SON Ltd 19 April 1971 [4 Dec 1969] 59341/69 Heading A3B A shoe e.g. for sports has an upper which is padded on the inside solely in the little toe region. The padding 10c extends from a position 11 just in front of the little toe position and from the sole upwardly and terminates at the rear at a position 12 at the front of the arch. The padding 10c is located between a layer 10a constituting a portion of the upper which is softer and stretches more easily than the remainder of the upper and an inner layer 10b. Layer 10a may be Kangaroo skin, layer 10b may be knitted fabric and padding 10c may be foamed rubber or synthetic plastics.
Patent GB-1351303-A (GB)
Title: Tobacco pipe  filter
IPC: A24F1/00
Filed: 1971-08-12
Abstract: 1351303 Smokers' pipes M G NASH 3 Nov 1972 [12 Aug 1971] 37897/71 Heading A2M A filter insert for the bowl of a tobacco pipe comprises a perforated disc 1 mounted on a plug 28 of filter material, e.g. of cellulose acetate filaments, and resilient means extending radially outwardly of the disc periphery to retain the insert in the bowl. As shown, the resilient means comprises a metal gauze 46. In another embodiment, Fig. 3 (not shown), a somewhat ball-shaped mass (50) of extra fine gauge wire wool is mounted beneath the disc 1 and acts both as the filter material and as the resilient retaining means.
Patent GB-1351455-A (GB)
Title: Apparatus for transmitting information regarding monetary trans actions
IPC: G06Q50/00
Filed: 1970-02-06
Abstract: 1351455 Substation apparatus R C FREETHY 19 April 1971 [6 Feb 1970] 5900/70 Heading H4K [Also in Division G4] A system for making monetary transactions between a plurality of local stations and a main station, e.g. via a telecommunication system comprises at each local station means to accept cash, to generate an encoded signal characteristic of the cash value received and to transmit that signal to the main station the signal generator means and/or the transmitter means being controlled by clock pulses, the main station including means to decode signals produced by a local station apparatus and a synchronizing signal generator arranged to transmit said clock pulses to the local stations. The system described is used for placing bets. A punter wishing to place a bet employs a card reader 32 or a push-button automatic dialling code generator to couple that local station to the main station via a telephone system including wire or radio links. After an initial conversation between the punter and a clerk at main station switches 33 and 41 are thrown to interconnect the automatic equipments shown in the lower portion of the Figure to allow the monetary transaction to take place. Each local station includes coin and note acceptors 36, an alarm 39 which operates if either acceptor is tampered with, an encoder 35 (detailed in Fig. 3, not shown) comprising a pair of seven stage shift registers with selectively controlled feedback loops which generate (under the control of incoming clock signals) 127 bit codes for ú1 and 10p coin signals and counters which control repeated cycling for ú5 and 50p coins, a display unit 37 for displaying the values transmitted and a receipt unit 38 which issues a receipt under control of a local push-button, signals from the betting office or from the cash acceptor. The main station or betting office includes a clock signal source 47, a decoder unit 44 (detailed in Fig. 4, not shown) operating in a manner similar to the encoder 35 to generate simultaneously the ú1 and 10p codes and including AND gates that compare these codes bit by bit with an incoming code and increment error counters every time a difference is detected a signal being declared valid if less than a predetermined number of bits are in error, a display unit for displaying the values received to enable the clerk to make a record and a printer unit for printing those values. A tape recorder unit 42 operating throughout the connection records both the verbal transactions and the coin signals which due to modems 34 and 43 are of audio tone form.