baber/WOPTO huggingface dataset:
Patent GB-855045-A (GB)
Title: Power take-off mechanism
IPC: F16H37/00
Filed: 1958-12-30
Abstract: 855,045. Change-speed gear. ALLISCHALMERS MANUFACTURING CO. Dec. 30, 1958 [Dec. 30, 1957], No. 42094/58. Class 80 (2). [Also in Group XXXI] A pump 101, for supplying fluid to a vehicle transmission, may be connected by a first clutch mechanism 82 to the engine of a motor vehicle and by a second clutch mechanism 92 to a ground engaging traction element upon disengagement of the first clutch mechanism. In the preferred embodiment, the pump 101 is of the gear type and supplies fluid from a reservoir 107 to a manually-operated valve 111 controlling clutches 53, 54 and 56 providing two forward ratios and a reverse drive between the input and output shafts 26, 12 of a gear-box which is shown as a developed view. The reverse drive is,provided by the gears 29, 36 meshing with each other while the two forward ratios are provided by the meshing pairs 43, 51 and 44, 52 which are also driven from the gear 29 by a gear 31. When the engine of the vehicle, which may be a crawler tractor, is running the pump 101 is driven through the clutch 82 and gears 74, 76 by a shaft 7 3 driven from the input shaft of a torque converter which also drives the input shaft 26 of the gear-box. When the vehicle is being towed for starting, the clutch 82.is disengaged by a hand-lever 98 which also displaces a gear 93 to cause it to mesh with a gear 94 on the shaft 12. The clutches are of the multiple friction disc type having splined engagement with their driving and driven members. A gear 14 on the shaft 12 drives a gear on a transverse shaft (not shown) situated at the rear end of the vehicle and connected to the track sprockets through steering clutches and toothed reduction drives. The pump 101 may, alternatively, be used to actuate the steering clutches.
Patent GB-1313087-A (GB)
Title: Interference filters
IPC: G02B5/28
Filed: 1971-09-13
Abstract: 1313087 Interference filters BALZERS PATENT-UND BETEILIGUNGS-AG 13 Sept 1971 [18 Sept 1970] 42509/71 Heading G2J An interference filter, of the type which reflects a given wavelength band within a given wavelength range, comprises an internal section consisting of alternate layers of high and low refractive index light transmitting material in a symmetrical relationship and on each side an outer section consisting of alternate layers of high and low refractive index light transmissive material in which one of said alternate layers has a constant refractive index n const  which is the same as one of the alternate layers of the internal section and the other alternate layers has a variable refractive index n i  deviating from n const  to satisfy the condition 1n const -n i  1d i  for alternate-layers of the outer sections is less than this product for the layers of the internal section with the refractive index n const , where d i  is the layer thickness. The layers of index n const  may be the high or the low refractive index layers of the internal system. It is prefered that each outer section have the form A/2, B1, A, B1, A/2 where A designates a layer of thickness #/4 of one refractive index, and B designates a similar layer of another refractive index and # represents the wavelength of minimum transmission of the filter. Several examples are given.
Patent GB-1355785-A (GB)
Title: Synthetic smoking material
IPC: C08B15/04
Filed: 1970-09-04
Abstract: 1355785 Tobacco substitute GALLAHER Ltd 1 Sept 1971 [4 Sept 1970 11 May 1971] 42553/70 and 14215/71 Heading A2C [Also in Division C3]  A synthetic smoking material consists of an oxidized cellulose derivative, in which some or all of the primary alcohol groups have been converted to uronic acid groups. Mineral salts may be incorporated in order to improve the taste and ash-formation and to lower the irritancy. Suitable salts are calcium or magnesium phosphates, citrates and oxalates. These salts may be between 5% and 30% by weight of the smoking product. Tobacco extract may also be incorporated, preferably after treatment with acid and washing with water if mineral salts have been used; this treatment lowers the salt content to between 5 and 10% by weight. If tobacco extract is used, 0.2% by weight of sorbic acid or butanediol-1, 3 may be added to reduce fungal growth.
Patent GB-1304725-A (GB)
Inventor: ROSENKRANZ H-J
IPC: C08G59/68
Filed: 1970-09-10
Abstract: 1304725 UV-hardened resin compositions BAYER AG 10 Sept 1970 [18 Sept 1969] 43368/70 Heading C3R [Also in Division G2] An acid-hardening resin composition contains, as UV-activated hardening catalyst, at least one halogenated benzophenone wherein R 1  represents -CH 2 X, -CHX 2  or -CX 3  and R 2  represents -H, -CH 3 , -CH 2 X, -CHX 2  or -CX 3 , X being a halogen atom. Suitable halogenated benzophenones are pbenzoyl- -benzyl chloride, -benzal chloride, and -benzotrichloride, 4 : 4<SP>1</SP>-bis-(chloromethyl, dichloromethyl, or trichloromethyl) benzophenone, the corresponding bromocompounds, and o-benzoylbenzotrichloride, preferably used in amounts of 0À1-10% by weight of the resin. Suitable resins are phenolic, urea-formaldehyde, melamine-formaldehyde and epoxy resins. In Example 1 a 40 : 60 mixture of a urea-formaldehyde resin and an alkyd resin (from castor oil, soya bean oil, trimethylolpropane, pentaerythritol, benzoic acid and phthalic anhydride) dissolved in butanol/ethoxyethanol/ethanol, with 1% of silicone oil in xylene, is coated on to glass and hardened by exposure to UV light, after the addition of 1À6-2À3% of 4 : 4<SP>1</SP>-bisbromomethyl - benzophenone, p - benzoylbenzyl bromide, p-benzoyl-benzal bromide or chloride, or p-benzoyl-benzotrichloride. In Example 2 a 12 : 88 solution of hexamethoxymethylmelamine and a polyester (from terephthalic acid and bisphenol A bis-hydroxyethyl ether and glycerol) in methylene chloride, with 3% of p-benzoyl-benzotrichloride is coated on to a metal plate and exposed after drying to UV light through a negative; after heating the unexposed portions are removed with CH 2 Cl 2 .
Patent GB-1130793-A (GB)
Title: Production of artificial crystals
Inventor: SAWYER CHARLES BALDWIN
IPC: C30B7/00
Filed: 1966-09-28
Abstract: 1,130,793. Synthetic quartz. SAWYER RESEARCH PRODUCTS Inc. 28 Sept., 1966, No. 43404/66. Heading C1A. [Also in Division B1] A plurality of plate-like crystals of quartz are grown in a cylindrical autoclave from an aqueous sodium carbonate solution on a plurality of seeds 33 supported by holders in a rack such that the seeds are all orientated in the same direction with their longitudinal axes parallel to the longitudinal axis of the autoclave and growth is substantially limited to the parallel major surfaces, which surfaces intersect the crystallographic Z-axis at an angle of 94#6 degrees. The holders each comprise a pair of smooth parallel plates 35, 36 between which a seed is held along its length at opposite minor surfaces. The plates are of iron, silver, titanium, or graphite. Each seed preferably has its length substantially along the Y-axis. It may have a length of at least 4À5 inch, a thickness of 0À04-0À14 inch, and a width of at least 0À5 inch. The solution is carried upwards by convection to the seeds from a supply of quartz at the bottom of the autoclave. The progress of crystallization is followed by means of Gamma-ray photographs. An example of operating conditions is given.
Patent GB-1074300-A (GB)
Title: Improvements relating to the separation of carbon dioxide and ammonia from mixtures wiht water vapour
IPC: C23F11/02
Filed: 1965-10-15
Abstract: 1,074,300. Recovery of ammonia and carbon dioxide from aqueous mixtures. ALLIED CHEMICAL CORPORATION. Oct. 15, 1965 [Oct. 16, 1964], No. 43868/65. Heading BIB. To prevent corrosion of stainless steel gas strippers employed to separate carbon dioxide and ammonia from mixtures thereof with water, e.g. effluent from urea synthesis, a mixture of CO 2  and O 2  is introduced into the stripper at a level below the lowest point where corrosion normally takes place. The oxygen and carbon dioxide rise through the stripper, the oxygen forming a protective coating on the stainless steel and being so dilute at the point of feed introduction 102 that the explosive limit of oxygen and hydrogen is not reached, hydrogen being possibly present in the feed. Water passes down through the stripper and is withdrawn through line 108, part of it being passed through reboiler 112 and back to the stripper.
Patent GB-1027159-A (GB)
Title: Improvements in or relating to processes for the production of ribbon-shaped dendrites of semiconductor material
IPC: C30B25/00
Filed: 1962-11-22
Abstract: Dendritic crystals grown by the process of Specification 993,701 have an epitaxial deposition on the 111 surfaces by reduction of the temperature of the charge in the heated reaction vessel to give a temperature gradient which favours epitaxial growth, the layers so built up may result in a different conductivity type by altering the concentration of the doping material. Thus, gallium arsenide dendrites may have epitaxial layers deposited in the presence of zinc to produce p-type conductivity.  By varying the temperature of sections of a tube containing doping material and gallium arsenide, successive layers of different conductivity may be built up. Reference is also made to formation of epitaxial layers on AIIBVI and AIIIBV compounds and on Group IV elements.
Patent GB-1139802-A (GB)
Title: Growth of crystalline layers
Inventor: HURLE DONALD THOMAS JAMES
IPC: C23C16/00
Filed: 1964-10-30
Abstract: 1,139,802. Crystallizing silicon from alloys. MINISTER OF TECHNOLOGY. 31 Jan., 1966 [30 Oct., 1964], No. 44362/64. Heading C1A. [Also in Division B1] A layer of silicon is grown on the upper surface 15 of a substrate 5 from solution in a molten metal zone 9, the silicon being replenished in the zone by absorption at the upper surface 17 of zone 9 from vapour 1. The required heat gradient across the molten zone 9 is provided by a radiant heat source 11. The silicon absorbed may be formed by the interaction of trichlorosilane, silicon tetrachloride or hexachlorodisilane and hydrogen; or by the pyrolysis of hexachlorodisilane. The metal may be gold, platinum, palladium, silver, copper, or nickel. The substrate may be mono- or polycrystalline and may be of silicon or silica.
Patent GB-1195209-A (GB)
Title: Charging Device for Electrical Appliance.
IPC: A61C1/06
Filed: 1967-10-02
Abstract: 1,195,209. Holder for toothbrush or razor. MITSUBISHI DENKI K.K. 2 Oct., 1967 [1 Oct., 1966], No. 44687/67. Heading A4V. [Also in Divisions A5 and H5] A cabinet contains a U/V sterilizing lamp and provides a housing for an electrically operated appliance, e.g. a toothbrush or razor, which contains a rechargeable battery as its electrical power source, the housing being provided with a socket into which the appliance is inserted, such insertion simultaneously activating the sterilizing lamp and attaching the appliance to a current supply to recharge its battery, the housing having a window for observing the energizing of the lamp from outside the housing. In Fig. 2 the cabinet 10 comprises a chamber 12, the floor 14 of which contains a hole 26 into which the applianceillustrated as a dental handset 110, is inserted, a subsidiary support 28 carrying a contact 32 having terminal 33, 34 of correct polarity to co-operate with the corresponding contact on the appliance and initiate charging of the battery. Insertion of appliance 110 by depressing sliding contact 53 closes spring switch 50 and activates lamp 46 via mains lead 40 and ballast resistance 48. Mains lead 40 which is connected to a standard AC current supply by plug 44 is also connected via transformer 36 and rectifier 38 to the connector 32, the voltage being stepped down to produce suitable charging parameters. The front of the housing is constituted by an L-shaped door 17 hinged at 18 and releasably fastened at 24 to the housing, door 17 preferably being made of a material which is transparent to visible light but impermeable to U/V light. The fact that the U/V source is visible outside the housing means that the operation of the charging circuit is effectively monitored. The beam of the U/V lamp is directed mainly downwards so as to prevent the escape from the housing of any great amount of U/V radiation when the door 17 is opened.
Patent GB-1476398-A (GB)
Title: Halogenation of aromatic compounds
IPC: C07C67/00
Filed: 1974-10-16
Abstract: Optionally substituted aromatic hydrocarbons are reacted with a free-radical-liberating halogenating agent in the presence of a catalyst from the group comprising synthetic FeS2, FeS, pyrite and pyrrhotine. The process allows a control of the isomerisation in electrophilic aromatic substitution. The use of the novel catalyst results in an improved yield of p-substituted products. With or without the use of an additional catalyst, the process allows the preparation of products with an increased p/o substitution ratio.
Patent GB-1027890-A (GB)
Title: Improvements in vehicles having electrically controlled automatic level-correcting suspension
IPC: B60G17/04
Filed: 1963-11-13
Abstract: 1,027,890. Adjusting vehicle height. F. S. ALLINQUANT. Nov. 13, 1963 [Dec. 5, 1962], No. 44925/63. Heading B7D. In a vehicle suspension including an electrically controlled levelling system which comes into operation only upon closure of a switch 12 actuated by depression of the accelerator pedal 13 of the vehicle, a re-feed relay 15 ensures that any necessary correction of level is completed despite the opening after a predetermined interval of a delayed action relay 14 which otherwise limits the time during which the control circuit is energized. Upon closure of the switch 12 current supplied by a battery 10 flows through a main switch 11 and the delayed action relay 14 to a height-detecting switch 9 which, according to the height of the vehicle body relative to a wheel 2, may energize either an electrically actuated valve 6 controlling admission of gas to a chamber 4 in an oleopneumatic suspension unit 1 from a chamber 5, or the winding 23a of a relay 23 supplying the motor 8 of a piston or gear-type compressor 7 which transfers gas from the chamber 4 to the chamber 5. Conductors 22a, 22b, 22c connect the winding 21 of the re-feed relay 15 and the supply lines to the valve 6, the compressor 7 and any other valves or compressors (not shown) associated with the system whereby the relay 15 is closed whenever a levelling operation is in progress and the delayed-action relay 14 is by-passed. Diodes 24 ensure that current flows in the connections 22a, 22b, 22c only towards the winding 21 thereby preventing unintentional operation of the valve 6 or compressor 7. Indicator lamps such as 6a may be illuminated when the valve or the compressor is energized.
Patent GB-1143958-A (GB)
Title: Improvements relating to space heaters
Inventor: RUSSELL WILLIAM MORRIS
IPC: F24H9/20
Filed: 1965-10-23
Abstract: 1,143,958. Storage heaters. SIMPLEX ELECTRIC CO. Ltd. 23 Jan., 1967 [23 Oct., 1965; 18 Feb., 1966], Nos. 44964/65 and 7154/66. Heading F4U. A storage heater comprises manually operable means for temporarily increasing the rate of heat abstraction from the core and timing means for limiting the period of increased heat abstraction. As shown, air from one outlet 19 of a blower 22 passes from an inlet duct 17 to an outlet duct 18 through passages 16 in the storage core 11. Air from duct 18, together with fresh air from an inlet 27, is drawn in by the blower which has a second outlet 23 to a discharge chamber 25. A flap valve 31 in outlet 19 determines the relative proportions of discharged and re-circulated air and is controlled by a temperature responsive assembly 32 in duct 18. The linkage between assembly 32 and valve 31 includes a bimetallic strip (Fig. 2, not shown) having an associated heater. When the latter is manually energized, the strip acts to open valve 31, the heater being de-energized by a timer. Alternatively, the linkage may be latched into a position which opens valve 31 and the latch is released by a bi-metallic strip. In a modification, the blower may be caused to run at a higher speed to increase the heat abstraction and is switched to its lower speed by the timer. Heat abstraction may also be increased by opening valves which allow air to flow through additional channels in the storage core.
Patent GB-1439335-A (GB)
Title: Convertible seat structures for vehicles such as  caravans and motor caravans
IPC: B60P3/38
Filed: 1972-09-29
Abstract: 1439335 Convertible seats; seats and storage space RICHARD HOLDS WORTH CONVERSIONS Ltd 5 Sept 1973 [29 Sept 1972]  44986/72 Headings A4H and A4J A vehicle seat which is convertible from a single seat facing forwardly of the vehicle to a bench extending longitudinally of the vehicle comprises two panels 8, 10 hinged together, panel 10 being provided with a support 2 which forms a supporting leg in the bench position and an arm in the single seat position and the panel 8 being provided with a hinged leg 8a which provides access to a storage space below the panel and a backrest for the single seat.
Patent GB-1291118-A (GB)
Title: Identifying system
IPC: G07C9/00
Filed: 1969-09-12
Abstract: 1291118 Electric couplings J DETHLOFF and H GROTTRUP 12 Sept 1969 [13 Sept 1968] 45159/69 Heading H2E [Also in Division G4]  An identificator forming part of an identifying system (see Division G4) has twenty contact pins 15 (arranged in two rows) for engaging input and output elements of an identificant in the form of a card when it is inserted into a slot. At one end of the slot is a holding pin 10 which is moved into a hole in the identificant when a limit switch 9 is operated by pushing the identificant into the slot, to hold it in the slot.
Patent GB-1510159-A (GB)
Title: Laminar structures
IPC: H05K3/06
Filed: 1975-10-31
Abstract: 1510159 Photo-mechanical process INTERNATIONAL BUSINESS MACHINES CORP 31 Oct 1975 [10 April 1975] 45257/75 Heading G2X [Also in Division B5] A lamina is held during the performance of processing steps thereon by adhesively securing it to a support using a preformed film or layer of dry, photo-resist having adhesive properties, performing the processing steps on the lamina and dissolving the film or layer in a solvent to separate the lamina from the support. A lead frame device may be produced by cleaning a support, laminating or a surface thereof a first preformed film or layer of dry photo-resist material having adhesive properties, laminating a second preformed film or layer of dry photo-resist material having adhesive properties on to a sheet or strip adhering to and overlying the first film or layer, adhering a metal foil, e.g. copper or aluminium, to the second layer or film, coating the metal foil with a positive type photo-resist, exposing the photo-resist layer to a light pattern corresponding to the configuration of the lead frame, developing to remove the unexposed regions thereof, etching the metal foil to form the lead frame, removing the remaining regions of the photo-resist layer, applying a layer of negative type photo-resist to the surface, exposing the resist layer to a light pattern corresponding to contact zones of the lead frame to which connections are to be made, developing to remove the exposed regions thereof, plating metallic composition on to the exposed areas of the lead frame to form contact zones and soaking the assembly in a solvent for the unexposed negative photo-resist material to remove the lead frame from the support. A preformed layer or film of dry photo-resist material having adhesive properties may be laminated to each surface of the support. The sheet or strips adhering to the first film or layer of dry photo-resist material having adhesive properties may be a polyester cover strip which separates the contributions of photo-resist material in the stock roll.
Patent GB-964113-A (GB)
Title: Polymer formulations
Inventor: KETTH REEVE TAYLOR MICHAEL JAM
IPC: C08L25/10
Filed: 1961-12-19
Abstract: A composition, suitable for the production of shoe-soles, comprises a styrene-butadiene resinous copolymer containing a major proportion of styrene-butadiene-styrene synthetic rubber having low Mooney viscosity characteristics and an oil-extended styrene-butadiene synthetic rubber. The resinous copolymer may contain from 80 to 90 parts of styrene, the low Mooney rubber from 85 to 65 parts butadiene with a viscosity ML-4 of 35 at 212 DEG F. The oil extended rubber may contain 80 to 75 parts butadiene and 20 to 35% oil which may be a naphthenic oil.  There may also be present a natural rubber or a synthetic rubber of medium Mooney viscosity characteristics.  The compositions may contain the usual additives for rubber compositions such as a filler, vulcanising agent, vulcanisation accelerator, antioxidant, antiozonant and flowing agents and may be vulcanised.
Patent GB-1484609-A (GB)
Title: Radio receiver
IPC: H03J5/02
Filed: 1974-10-22
Abstract: 1484609 Receiver station pre-selection INTERNATIONAL STANDARD ELECTRIC CORP 22 Oct 1974 [29 Oct 19731 45607/74 Heading H3Q In a receiver tuning arrangement having a counter 11 which provides a code signal at 13-15 to select a first store of a programmable storage and control circuit 17, tuning information corresponding to a first broadcast channel received as a tuning circuit 30 scans through its waverange is stored in the first store whereon the counter 11 provides a second code signal at 13-15 to select a second store of the programmable circuit 17 and restart the tuning scan so that when the tuning scan stops on the next received station the tuning information corresponding to this station is stored in the second store. On turn on of the TV receiver shown and with the switch 45 closed the counter 11 is set via a reset input 12 at its outputs 13-15 to zero as soon as the supply voltage is available. Actuation of a key 26 provides a start pulse to 18 to start automatic station finding and sets via input 46 the counter 11 to its first counting position. A matrix signal from outputs 13-15 of the counter selects via sensor matrix inputs 20-22 the first store of the programmable circuit 17. An analog output 25 feeds a varying tuning voltage via a time constant and filter 29 to a varactor diode tuner 30. On receiving a TV channel signal a circuit 33 provides a stop signal to 19 and stops the automatic station finding process. The stop signal is also fed via a time delay one shot monostable circuit 34 to step on the counter 11 by one and restart via 18 the automatic station finding operation. The output 13-15 of the counter selects store number 2 of the programmable storage circuit 17 and the simultaneously disconnected store number 1 remains programmed with its analog voltage corresponding to the found channel. As before the next received channel signal is stored in store 2 and so on. If during station finding a receiving range limit is reached range matrix outputs 23, 24 control a range matrix circuit 47 to switch the tuner 30 to the next receiving wave range and output 25 is reset to its initial value and then subjected to variation for the automatic station finding period. If the last store is filled the counter 11 remains in this position. Switch 45 is opened to put the automatic programming out of operation. Each stored channel may be individually selected via touch operated controls 1-8 or via a remote control device via a circuit 41 containing a diode matrix effecting coding of the sensor inputs 20-22. Reprogramming of the just chosen store is effected by automatic station finding on each closure of the key 26. The circuits may be in modules formed by integrated or MNOS-techniques.