baber/WOPTO huggingface dataset:
Patent GB-1408090-A (GB)
Title: Grinding machine
IPC: B23Q11/08
Filed: 1973-12-28
Abstract: 1408090 Machinery guards; grinding LANDIS TOOL CO 28 Dec 1973 [29 Dec 1972] 59973/73 Heading B3D [Also in Division F2] A plunge-type grinding machine 10 includes a cylindrical workpiece loader assembly drum 44 located within an opening in a front wall 33 of an armoured protective machine casing 34 surrounding the grinding wheel 40, the loader assembly drum 44 being turnable in the wall opening between a loading/unloading position (Fig. 4) and a grinding position (Fig. 3) such that the opening is closed at these positions and all positions therebetween to protect the operator from projected swarf, or high speed fragments of the grinding wheel 40 in the event of it exploding. Turning of the loader assembly drum 44 between the above positions is effected by a selectively operable fluid piston/cylinder motor 60, 58. A sliable viewing door 88 at the top of the casing 33, 34 enables the operator to view the grinding zone during operation, a switch 89 on the top wall 86 being closed by a lug 90 integral on the viewing door 88 when the viewing door is opened, to actuate the grinding machine controls 92 to reduce the speed of the grinding wheel to half-speed to minimize danger of explosion of the grinding wheel.
Patent GB-1339905-A (GB)
Title: Removal of grit from dry electrostatographic developer
IPC: G03G15/08
Filed: 1970-12-21
Abstract: 1339905 Electro-photography XEROX CORP [21 Dec 1970 [30 Dec 1969] 60542/70 Heading G2H During cascade or magnetic brush development of a charge image on a photo-conductive surface/, using dry toner carrier developer carrier grit is selectively deposited on at least one adjacent non- imaging photo-conductive surface which is uniformly charged at a polarity opposite to that of the charge image. A shield is provided between the imaging and non-imaging surfaces (which may be integral or separate) during prior uniform charging and imagewise exposure to form the charge image. Each surface may be of a drum or web. A web may be uniformly charged on a feed roll before passage round a drum. After transfer of a developed image from a drum surface, the imaging and non-imaging surfaces are prepared for reuse by application of a reversed charge, brush cleaning and light exposure. After formation of a developed image and deposition of grit on a web containing both imaging and non- imaging surfaces, the latter are cut-off and discarded. A non-imaging web may be in the form of an endless belt. Fig.3 shows an integral drum having an imaging surface charged by device 21 and non-imaging surfaces charged by devices 31 and 31' before exposure, cascade development and brush cleaning, the surface being separated by shields 33 and 33'.
Patent GB-2010406-A (GB)
Title: Improvements in or Relating to Devices for Producing a Hot Fluid Stream
IPC: F23R3/30
Filed: 1978-12-13
Abstract: The device, e.g. a hydrazine thruster, comprises a reaction chamber (3) supplied with fuel through a pipe (7), and a heat shunt (8) coupled between the pipe immediately upstream of the reaction chamber and a heat sink, e.g. a flange member (6) containing fuel valves. In modifications the heat shunt may comprise fluid, evaporative, radiative chemical or electrical means and may be cooled by fuel bypassed from pipe (7). <IMAGE>
Patent GB-2023680-A (GB)
Title: Dyeing or printing textile material containing synthetic fibers
IPC: D06B21/00
Filed: 1978-12-22
Abstract: A process for dyeing and printing flat textile articles consisting of or containing synthetic fibers, by pretreating the goods in full width or rope form, with at least one pretreatment bath having a temperature of from 80 to 140 DEG C, removing water from the goods or drying them, impregnating the goods at full width, fixing the dyestuffs and aftertreating the foods in rope form, under low tension, in at least two baths, optionally in the presence of surfactants, at least one bath having a temperature of from 80 to 140 DEG C, and advancing the goods in the baths by means of a winch or by nozzles in a way to make sure that folds in the rope are opened out or are rearranged.
Patent GB-2013222-A (GB)
Title: Preparation of components of olefine polymerisation catalysts
IPC: C08F10/00
Filed: 1979-01-25
Abstract: A process for the preparation of an active TiCl3 component of an olefine polymerisation catalysts comprises:   (a) reacting TiCl4 with a complexing agent in a molar ratio of from 1:0.3 to 1:2; (b) reacting an organo-aluminium compound with a complexing agent in a molar ratio of at most 1:0.25; (c) reducing the complexed TiCl4 with the complexed organo- aluminium compound over a period of less than one hour at a temperature within the range 60 DEG  to 110 DEG C to produce TiCl3 particles having an average particle size of from 50 to 500  mu m; (d) subjecting the TiCl3 particles to a treatment to reduce the average particle size thereof to less than 50  mu m; and (e) classifying the TiCl3 particles to separate a fraction having an average particle size of from 0-1 to 30  mu m.   The fraction is used with an organometallic cocatalyst in the polymerisation of olefines.
Patent GB-2041876-A (GB)
Title: Hydraulic Elevator
IPC: B66C23/48
Filed: 1979-02-13
Abstract: An hydraulic elevator comprising a base frame of legs 2 at an angle and cross member 5, having fitted wheels 22 and castors 23, onto which is mounted vertical tension 4 and compression 3 members connecting to a pivoting cantilever lifting boom 1 via a pivot 16 and extensible hydraulic ram 10. Operation of a piston integral with the ram 10 causes the lifting point 11 to rise or fall. The arc of travel through which the lifting point 11 passes under the action of the hydraulic ram 10 may be adjusted by means of a screw mechanism 13 attached to the ram 10 thereby maintaining the full hydraulic lift available irrespective of the size or initial height of the load. Additionally by removal of pivot bolts 18, 20 the ram may be removed from the device for jacking or other associated lifting or ramming tasks, independently. By removal of bolts 18, 19 the boom and vertical members 3, 4 may be rotated about their respective pivots 16, 17 enabling the device to be folded into a generally flat structure made rigid and wheelable by re-insertion of a bolt 18 through the aligned holes W, Y, Z provided for this purpose. <IMAGE>
Patent GB-2021813-A (GB)
Title: Electronically Controlled Knitting Machine
IPC: G05B19/045
Filed: 1979-05-02
Abstract: An electronically controlled knitting machine, more particularly a circular knitting machine, with electro- magnetic pattern selection, comprises a basic pattern store (1) having an address control arrangement 6 - 17 for reading out the information contained in the basic pattern store in any of a number of ways to provide inversion, enlargement or repetition etc, of a basic pattern held in the store 1. Addresses and adaption commands held in a memory 12 are set in a buffer 13, from whence the address is directed to address buffer 6, and thereafter manipulated in a multiplexer 9 according to the adaption commands. The elements 14-16 verify transmission of the address from 6 and initiate a new command from 12 on each needle cylinder rotation (or more frequently for repetitions). The stream of addresses reaching the ROM 1 (which may be an EPROM or EAROM) then read out the desired pattern to needle selectors 2. <IMAGE>
Patent GB-2024914-A (GB)
Title: An Electronic Locking System
IPC: G07C9/00
Filed: 1979-05-18
Abstract: An electronic locking system includes a lock and a key designed so that on inserting the key into the lock, the lock transmits to the key a lock code. The key receives this lock code and transmits to the lock a key actuating code. The lock then samples this key actuating code and is actuated only if the key actuating code is correct. In a preferred system, it is not necessary to insert the key into the lock in order to transmit a lock code to the key. The lock and the key are operable so that the key transmits to the lock a starting code, and the lock samples the key starting code and transmits to the key a lock code only if the key starting code is correct. The key samples this lock code and transmits to the lock a key actuating code only if the lock code is correct. The lock then samples the key actuating code and is actuated only if the key actuating code is correct. The codes may be in various forms such as, for example electronic, sonic, ultrasonic or light pulses.
Patent GB-2034014-A (GB)
Title: Method of utilizing waste tires
IPC: C04B7/44
Filed: 1979-10-18
Abstract: Waste tires are used as fuel in an apparatus for the production of cement by means of a rotary kiln by charging waste tires or crushed waste tire pieces to a position where the temperature of the exhaust gas in the apparatus is 600-1,400 DEG C in an amount of not more than 60% of the total used fuel calculated as heat energy.
Patent GB-2049630-A (GB)
Title: Box Made of Cardboard or Like Material
IPC: B65D8/14
Filed: 1980-05-01
Abstract: A collapsible cardboard box comprises a continuous wall A and a bottom B which is supported on an internal shoulder 9 on the wall A formed by turning in the lower edge portion of the wall A. Crease lines 7, 8 facilitate in turning of the edge portion, which is preferably glued in the inturned position. <IMAGE>
Patent GB-2059101-A (GB)
Title: Phase-contrast microscope
IPC: G02B21/14
Filed: 1980-09-02
Abstract: The arrangement comprises an illumination system (2) for an object (3) and an imaging system (4,5), in which a first diffraction plate (6) is arranged in, or in the vicinity of, an exit pupil of an objective (5) of the imaging system or an image thereof; which diffraction plate has substantially a cos<2>- transmissivity distribution over more than one period, the length of period of the transmissivity distribution being matched to the diameter of the objective exit pupil of the imaging system or the image thereof, and a second, like, diffraction plate (1) is arranged in the entrance pupil of a condenser lens (2) of the illumination system or an image thereof, the length of period of the second diffraction plate after imaging into the diffraction plane of the second plate corresponding to that of the second plate. The eyepiece is shown at (7). <IMAGE>
Patent GB-2083738-A (GB)
Title: Ovens
IPC: A21B1/26
Filed: 1980-09-11
Abstract: An oven for baking biscuits having a casing (10) with an inlet (20) for an endless conveyor (22) on one side and an outlet (24) for the conveyor (22) on the other. The conveyor (22) carries a series of trays (T) which support the biscuits being cooked and there are upper and lower guides (26) inside the casing (10). The conveyor (22) passes over these guides (26) in a series of vertical runs. Heaters (28, 34) are provided top and bottom. The bottom heaters (28) are supplied with gas and the top heaters (34) are electric. Heating can also be provided by blowing hot air in via fan (42) and ensuring even distribution thereof by baffles (44, 46, 48, 50, 52). <IMAGE>
Patent GB-2059694-A (GB)
Title: Solar energy supply system and method
IPC: H02J17/00
Filed: 1980-09-15
Abstract: Solar energy is collected by a solar array (10) supported in space by a geostationary satellite and converted by lasers (11) into energy beams which are directed to an air buoyant intermediate platform or balloon (1) at a position within the upper atmosphere. The laser energy is there converted to microwave energy and beamed down to receiving stations on the ground. <IMAGE>
Patent GB-2067582-A (GB)
Title: Silicone resin coating composition
IPC: C08J7/04
Filed: 1980-12-05
Abstract: An abrasion-resistant coating with a high resistance to cracking can be achieved by covering a substrate, e.g. plastics or metal, with an aqueous coating composition comprising a dispersion of colloidal silica in an aliphatic alcohol-water solution of the partial condensate of a silanol of the formula RSi(OH)3, wherein R is alkyl having from 1 to 3 carbon atoms or aryl, at least 70 weight % of the silanol being CH3Si(OH)3 said composition having a pH of 7.1 to 7.8 and containing 10 to 50 weight % of solids comprising 10 to 70 weight % of colloidal silica, 30 to 90 weight % of the partial condensate, and 0.5 to 5 weight percent of a linear functionally terminated oligosiloxane having the general formula,   <IMAGE>  wherein X is hydroxy alkoxy, or   <IMAGE> wherein Y is hydrogen or alkyl, R' and R'' may be the same or different and are each alkyl, haloalkyl, cyanoalkyl or alkenyl, and n is a number from 1 to 18.
Patent GB-2070389-A (GB)
Title: Electroacoustic transducer
IPC: H04R7/12
Filed: 1981-01-30
Abstract: The invention relates to an electroacoustic transducer, the diaphragm of which is of the hemispherical cap type and which comprises an annular portion (4) resiliently supported at its external periphery and enclosed at the internal periphery (6) between two adjacent damping discs (7), coupled to an equalizing element (9), for example, through a pressure washer (14) and clamping device (12, 13). The diaphragm thus formed has its active or radiating part between the attachment of the external periphery to the supporting resilient structure (5) and the internal periphery (6) confined between the two damping discs (7). <IMAGE>
Patent GB-2073915-A (GB)
Title: Control of a vibratory conveyor
IPC: H02K33/14
Filed: 1981-03-18
Abstract: A sensor, SC, senses the vibration of the conveyor and a driving frequency of controlled amplitude and phase is derived from the sensor output to energise conveyor drive means, AV and AH1 to AH3 driving vibrations normal to and along the direction of movement of the load respectively. User controls (HA, VA, PA) for amplitude and phase can be mark/space adjusters (HMS, VMS, DMS) effective on the base circuits of transistors connected to electromagnetic actuators. Low voltage operation (less than 50v) is provided without proportionally increased current, partly by energy recovery from the inductors in the actuators. Two levels of protection against supply ripple are included (RT, RLA) and the actuator drive can be stabilised against supply variation (MSC). The low-voltage operation provided is both safer and more efficient than mains voltage operation. <IMAGE>
Patent GB-2073753-A (GB)
Title: Process for the production of m-nitrobenzoic acid
IPC: C07C205/57
Filed: 1981-04-07
Abstract: m-Nitrobenzoic acid having a low content of isomers is produced by nitration of benzoic acid in a two- phase system consisting of at least 85% sulfuric acid and an inert organic solvent in which the nitration product is virtually insoluble in the presence of sulfuric acid, with nitric acid, at a temperature in the range from {20 DEG to +35 DEG C.
Patent GB-2098541-A (GB)
Title: Laminating process
IPC: C05G3/00
Filed: 1981-05-19
Abstract: A process for the production of a laminated product comprises continuously feeding a flexible carrier sheet 5, distributing discrete particulate material 8 over the upper surface of the sheet, moving a sheet of flexible foamed plastics material 11 in synchronism with the carrier sheet, bringing the sheets into juxtaposition after application of said particulate material to the carrier sheet, and continuously adhering the sheets together by fusion. The particulate material may be selected from fabric softeners, insecticides, pesticides, fungicides, fertilizers, drying agents, weldable materials and air freshening compositions. <IMAGE>
Patent GB-2083073-A (GB)
Title: Hydraulic Lubricating Oils
IPC: C10M141/10
Filed: 1981-09-02
Abstract: A hydraulic lubricating oil composition, comprises a major amount, normally at least 80wt%, of paraffinic mineral oil, (i) 0.1-1.5% by wt. of a basic zinc di-C4-20 alkyl dithiophosphate and (ii) 0.05-1.0% by wt. of 2,6 di-tertiary butyl phenol, the composition having a VI of 80- 115 and a viscosity of 4-160 cSt at 40 DEG C. Conventional additions may also be present, for example an alkenyl succinic acid derivative rust inhibitor. The hydraulic oil has improved thermal stability and anti-wear and anti-corrosion properties.
Patent GB-2086280-A (GB)
Title: Sheet-forming machine
IPC: B21D35/00
Filed: 1981-09-24
Abstract: A sheet-forming machine has a motor-driven main shaft 10 which is provided with a cam section, and is fixed at both ends in the side supports 21, 22 of a frame. A punching device, which consists of several punching tools 26 positioned so as to be vertically movable, is operated by the main shaft, and a sheet bending device 18 is arranged generally parallel to the punching device 14, the forming rolls 48, 49 of the bending device being rotatably mounted in the side supports 21, 22 above the main shaft 10 and being driven by the main shaft via a gear unit 16 and a disconnectable coupling. A groove- rolling device 20 is mounted on an extension and is also driven by the main shaft 10 via a disconnectable coupling. <IMAGE>
Patent GB-2095534-A (GB)
Title: Green fodder preservative
IPC: A23K3/02
Filed: 1982-02-15
Abstract: The composition contains a @ constituent which increases the concentration of hydrogen ions, and @ a benzoic acid a salt or derivative thereof such as p-hydroxybenzoic acid or its esters. The amount of the constituent @ may be 40-98% by weight and the amount of the benzoic acid constituent 2-60% by weight. Specified constituents @ are formic acid or a mineral acid, or formates with acid phosphates.
Patent GB-2093524-A (GB)
Title: Internal combustion engine exhaust system
IPC: F02B27/04
Filed: 1982-02-24
Abstract: The invention provides an exhaust system for an internal combustion engine having a number of cylinders, comprising a primary exhaust pipe connected to the exhaust port of each cylinder, characterised in that there is a secondary exhaust pipe (20, 22, 24 or 26) connected between a Primary exhaust pipe (12, 14, 16 or 18) of a first cylinder (1, 2, 3 or 4) and a primary exhaust pipe (16, 12, 18 or 14) of a second cylinder (3, 1, 4, or 2). <IMAGE>
Patent GB-2118989-A (GB)
Title: Dry-laid floors
Inventor: SPARROW DR IAN HAUGH
IPC: E04B5/04
Filed: 1982-04-01
Abstract: The floor is composed of parallel spaced beams 11 having flanges 12 and blocks 13 of polystyrene foam which are laid on the flanges to bridge the gaps between the beams. Boards (26, Fig. 4) are laid on the polystyrene blocks, which serve both for heat insulation and as load-bearing members. The blocks may have flanged portions 14 extending over the beams, so as totally to insulate the beams. <IMAGE>
Patent GB-2119931-A (GB)
Title: Proximity detection devices
Inventor: STEPHENS GRAHAM MICHAEL
IPC: H03K17/955
Filed: 1982-05-07
Abstract: A proximity detection device comprises an oscillator adapted to produce a square wave oscillation, capacitive proximity sensor means whereby the self-capacitive proximity effect of an article or body to be detected modifies the rise and/or fall time of the square wave, and means for detecting the change between the two waveforms. Preferably means is provided for squaring up the modified waveform, which is then similar to the original square wave but delayed in time, and means is provided for detecting the delay between the two square waveforms. The detection device is readily adapted as a portable alarm the circuitry of which is shown in Figure 12. <IMAGE>
Patent GB-2121729-A (GB)
Title: Writing implement
Inventor: CHAO-YUAN LIN
IPC: B43K21/22
Filed: 1982-05-28
Abstract: Writing implement comprising an outer barrel 1 having a split clamp front end 11, at least one funnel shaped guiding means 2 disposed within said outer barrel and provided with an inner passage 21, a plurality of bullet-like pre-sharpened pencil lead stubs 3 each having an enlarged head, contained inside outer barrel and in said inner passage of said guiding means, and a cap 4 screwably mounted on said split clamp front end of said outer barrel. <IMAGE>
Patent GB-2103303-A (GB)
Title: Method of cleaning bearings
Inventor: FINNIGHAN FRANCIS M
IPC: B65G45/22
Filed: 1982-06-21
Abstract: A method of cleaning bearing surfaces between a spindle 24 and roller 25 in apparatus used in the handling or processing of food products, particularly slat conveyors. The spindle 24 has an axial bore 50 which opens into the clearance gap between the bearing surfaces, and cleaning fluid under pressure is supplied to the bore by a nozzle applied to the bore at one end of the spindle, the cleaning fluid flowing through the bore and over the bearing surfaces. A bush 38 of low- friction plastics material removes the need for lubricating oil.   <IMAGE>
Patent GB-2124414-A (GB)
Title: Majority decision ULA theta
Inventor: SPROAT MARTIN
IPC: H03K19/23
Filed: 1982-07-22
Abstract: A majority decision logic circuit uses a semiconductor ULA theta , and has four triplicated channels one of which is a clock channel (channel A) while the other three (channels B, C and D) are signal channels. Each channel has triplicated, and nominally identical, inputs and in each channel the circuitry derives from the triplicated inputs a majority vote output, and these majority vote outputs are the circuit's outputs. Each channel also has a majority vote input, either the internally generated majority vote or an external majority vote, and within each channel its majority decision vote is compared with the triplicated inputs. Hence if a fault occurs, the output due to that fault also causes the faulty channel's inputs to be compared with the majority vote to identify which level within the channel is at fault. An output selection circuit enables a faulty channel's outputs to be monitored to given an indication as to which channel and which level is faulty. Alternatively all the channels can be polled so that their fault/no fault states are continuously monitored. <IMAGE>
Patent GB-2103250-A (GB)
Title: Silver-filled glass
Inventor: DIETZ RAYMOND L
IPC: H01L21/60
Filed: 1982-07-30
Abstract: A silver metallizing paste for attachment of silicon semi-conductive devices in lead-frame packages, specifically ceramic packages, which is less expensive than a gold preform but useable in hermetic packages, and provides better electrical and thermal conductivity, and higher bond strength, than silver polyimides. From 25 to 95% of silver is blended with a low-melting glass, preferably one having 95-96% PbO, and a paste or ink is formed with a suitable vehicle at 75-86% solids. Use of the paste follows conventional practice. Selection of Ag:glass ratio depends on the type of die bonding to be used. The paste is particularly useful in MOS technology, where low contact resistance is required, and also finds applications as a solder substitute and bonding chip capacitors. It is most advantageous in attachment of larger- area integrated circuits in that stress cracking associated with the gold silicon eutectic is avoided.
Patent GB-2126853-A (GB)
Title: Camera tube beam current adjustment
Inventor: LITTLEJOHN HUGH KENDAL
IPC: H04N5/228
Filed: 1982-09-09
Abstract: In a camera tube the current of the scanned beam must be high enough to discharge the target at peak light levels higher than normal operating level. To set the current, instead of using higher-than-normal light intensity the beam is switched off during a fraction of the field scans so that the target charge exceeds that produced in one field by the peak light level. The beam current is then adjusted to discharge this increased charge. Preferably, the beam is switched off for two consecutive field scans out of every three. This ensures that the target charge is at least twice that produced by the peak light level and that both odd and even fields are alternately discharged. <IMAGE>