baber/WOPTO huggingface dataset:
Patent GB-1167159-A (GB)
Title: Improvements in or relating to Silver Halide Photography.
Inventor: DERSCH FRTIZ
IPC: G03C1/047
Filed: 1966-12-28
Abstract: 1,167,159. Photographic silver halide emulsions. GAF CORP. Dec. 28, 1966 [Jan. 10, 1966], No. 57922/66. Heading G2C. In preparing a photographic silver halide emulsion, solutions of water-soluble silver salts and water-soluble halides are mixed in an aqueous solution of water-soluble or water-dispersible collagen which does not show thermoreversibility of setting or gelling, and the resulting dispersion of silver halide in said collagen is coagulated by adding a precipitating agent such as polystyrene sulphonic acid or ammonium sulphate at a pH of 2 to 5. The coagulated dispersion may be washed, if desired with redispersion and further recoagulation, and dispersed in gelatine and chemically ripened. Alternatively the coagulum may be dried after washing or sensitization to form a dry coagulum of silver halide grains.
Patent GB-1345626-A (GB)
Title: Printing mechanism
IPC: B41J27/04
Filed: 1971-12-15
Abstract: 1345626 Printing apparatus NATIONAL CASH REGISTER CO 15 Dec 1971 [28 Dec 1970] 58252/71 Heading B6C A printing machine comprises a reciprocable printing member 41, mounted on a carrier 42 and moved by a cam on a path determined by guide slots 43, and an inking pad 25 which reciprocates laterally between a position in which it contacts the moving printing member and one in which it is clear of its path. The printing member moves twice for each movement of the inking pad, and they are actuated by cams on a common shaft. On alternate upward strokes the printing member is inked and prints on paper on table 21. A solenoid-actuated latch 51 can be actuated to stop upward movement of the carrier 42 and printing member 41, so preventing inking and/or printing in a particular cycle.
Patent GB-1283376-A (GB)
Title: A method of producing a semiconductor device or a circuit with layer-type components
IPC: H01L23/482
Filed: 1969-12-01
Abstract: 1283376 Perforating plastic substances TELEFUNKEN PATENTVERWERTUNGS GmbH 1 Dec 1969 [2 Dec 1968] 58525/69 Heading B5A [Also in Division H1] Apertures 33-35, Fig. 3, are formed through a plastics layer 3 situated on a carrier body such as semi-conductor wafer 24 by guiding an electron beam 4 across the layer 3 to evaporate material selectively. The path taken by the electron beam 4, as well as its cross-section, intensity and on-off sequence may be controlled by a suitably programmed computer. In the embodiment shown the plastics layer 3, which may be of polytetrafluoroethylene or polyurethane applied by spraying, is used as a mask for selective electroless- or electrodeposition of Cu on to a thin vapour deposited Cu layer 2 overlying an oxide or nitride coating 32 on a Si wafer 24 containing various circuit components such as a diode 30, transistor 29 and diffused resistor 31. The remaining plastics material 3 may then be dissolved, and the thus exposed regions of the Cu layer 2 removed to leave a pattern of conductive tracks across the oxide or nitride coating 32 interconnecting the various components. Alternatively the plastics layer 3 may be left in place and used to separate conductive layers in a multi-level wiring arrangement. In another embodiment (Figs. 6-9, not shown) the plastics layer (3) is used as an etching mask to define apertures etched firstly in an oxide or nitride layer (32) and then in an underlying N(P)-type Si wafer (24). Epitaxial deposition of P(N)-type islands (46) is then carried out into the recesses so formed in the wafer (24), and individual components may then be provided in the islands (46). A thick film assembly may be formed according to the invention by providing a ceramic or glass substrate 1, Fig. 1, with an evaporated Cu coating 2, covering the coating 2 with a layer 3 of plastics material, selectively removing areas of the layer 3 using the controlled electron beam 4, electroless- or electro-depositing more Cu into the recesses so formed, and removing the remaining plastics material 3 and the still exposed areas of the Cu coating 2. Electrical components, such as a planar transistor, are then bonded on to the resulting conductive tracks. Alternatively semi-conductor components may be inserted into a ceramic or glass substrate. The plastics layer shaped by the electron beam may also be used as an etching mask during mesa diode or transistor manufacture.
Patent GB-1408018-A (GB)
Title: Electronic multiplier and or divider
IPC: G06G7/161
Filed: 1972-12-28
Abstract: 1408018 Divider-multiplier computers MONSANTO CO 28 Dec 1972 [29 Dec 1971] 59751-/72 Heading G4G A divider/multiplier circuit includes a loop in which an error signal is represented as the duty cycle of a pulse train subsequently modulated in accordance with a divisor signal (b), the modulated error signal being compared with an input dividend signal (a), whereby the error signal is representative of the quotient (a/b). As shown, input signal a and feedback signal V f  are compared in op. amp. 12 to produce error signal e which, after integration in circuit 14, is compared with a triangular wave 21 to produce a pulse train 22 having a duty cycle d proportional to the error signal. Pulse train 22 is modulated in FET 96 by a second input signal b and the modulated signal converted in low-pass integrating circuit 26 to an analogue signal V f  = k 1 db. Thus, by the operation of comparator 12, The signal 22 which represents a/b may be modulated in FET 30 in accordance with a further input variable c. The resultant signal is demodulated in circuit 32 to produce an analogue signal proportional to c.a/b. The scale factor may be varied by means of potentiometer 124 and the signal amplified in circuit 34 to produce optional current or voltage outputs.
Patent GB-1282747-A (GB)
Title: Improvements in thread generating rolls
Inventor: KIMBERLEY ROBERT THOMAS
IPC: B21H3/04
Filed: 1969-12-09
Abstract: 1282747 Rolling screw threads SLATER (TANGENT) Ltd 19 April 1971 [9 Dec 1969] 59919/69 Heading B3M A thread generating roll comprises a cylindrical sleeve 5, whose outer surface has a screwthread formed thereon, which is detachably secured to an axially bored cylindrical body 1. The sleeve is fitted around the body so that recesses 3 and 6, formed in the body and sleeve respectively, combine to form cylindrical pockets. A hardened steel cup 7 is inserted into each of the pockets and is secured by a screw 8 being screwed into a blind bore 4. In the embodiment described, the body 1 is a steel casting while the sleeve 5 is a forging of high speed tungsten steel.
Patent GB-1363638-A (GB)
Title: Ventilators
IPC: E05F11/04
Filed: 1971-12-22
Abstract: 1363638 Catches COLT INTERNATIONAL Ltd 22 Dec 1971 [22 Dec 1970] 60717/70 Heading E2A The position of ventilation louvres (not shown; but connected to an operating lever 11) is indexed by a sliding nylon bar 17 whose position is indexed by ball catches 18d engaging in holes or depressions 17b in the bar. The bar is guided in a fabricated channel frame 18 which also supports the catches.
Patent GB-1287927-A (GB)
IPC: G01F1/38
Filed: 1969-12-16
Abstract: 1287927 Measuring fluid-flow TECHNION RESEARCH & DEVELOPMENT FOUNDATION Ltd 16 Dec 1969 [16 Dec 1968] 61377/69 Heading G1R In a flow meter comprising in combination, a differential fluid pressure measuring device and a Pitot tube, the differential pressure measuring device has a cylinder 9 having pressure points 10, 11 leading to each end, a loosely fitting piston 12 enclosed within the cylinder 9 and a spring 13 having one end acting on one end of the cylinder 9 and the other on the piston 12 and the arrangement is such that when an unbalanced force exists across the piston 12 the spring 13 opposes the piston 12 motion and the Pitot tube, Fig.2 (not shown), is connected by one tube 18 to the top of the cylinder 9 and by another tube 19 to the bottom of the cylinder 9. The piston 12 may be attached by a rod 14 to a pen recorder 6.
Patent GB-1356956-A (GB)
Title: Display sign
IPC: G09F19/00
Filed: 1970-12-30
Abstract: 1356956 Animated display PAN SCREEN PRINTERS Ltd 13 Dec 1971 [30 Dec 1970] 61773/70 Heading G5C A display consists of a transparent front portion 15 having parallel lines and a background sheet 12 having two sets of superimposed parallel lines inclined at a small angle so that, when an observer moves, the lines of the sheets produce an animated effect. The front sheet may be in the form of letters (Fig. 4, not shown), and the background sheet 12 may be folded into a zig-zag. The lines on the transparent front may be of a red or orange colour and the dark lines on the background sheet may be printed over a greenish-yellow coloured background.
Patent GB-2027783-A (GB)
Title: Shutters
IPC: E06B3/48
Filed: 1978-08-10
Abstract: A shutter movable across an opening is formed from parallel slats (1) joined edge-to-edge via hinge joints (15). Instead of being formed from a single strip, each slat (1) is formed from a plurality of parallel strips (3) rigidly interconnected (5, 6) in edge- to-edge disposition, and preferably supported by Z-section members and channel section end and side members. <IMAGE>
Patent GB-2028451-A (GB)
Title: Sealing Cartridge for Anchoring Bolts or Sealing Solid Structures
IPC: F16B13/14
Filed: 1978-08-17
Abstract: A process for reinforcing or sealing solid structures or for anchoring bolts using macrocapsules which contain at least one part of a multi-part curable polymer system and which fracture under pressure to produce flake-like fragments that aid in mixing the components of the multi-part curable polymer system. The macrocapsules are made into a sealing cartridge for ease of use, e.g. can be contained in a paper tube or can be held together adhesively to form a cylindrical mass. In securing, e.g. a rock bolt, the capsules are placed on the borehole with another part of the system, e.g. in liquid form, if all parts are not contained in capsules and shattered by inserting the bolt. Rotation of the bolt is unnecessary.   <IMAGE>
Patent GB-2009071-A (GB)
Title: Head-Up Display Systems
IPC: G02B27/01
Filed: 1978-11-14
Abstract: An aircraft head-up display system has an observer's display unit (11) rotatable in azimuth; an observer's head position detection system (13) which develops an output representative of the angular position of the observer's head (15) at least in azimuth with respect to a datum direction fixed in the aircraft; and, servo means (12) between the detection system and the display unit effective in response to said output so as to rotate the display unit in sympathy with the observer's head position. The invention finds particular application in helicopters. <IMAGE>
Patent GB-2038054-A (GB)
Title: Multiple channel control systems
IPC: A63H19/24
Filed: 1978-12-19
Abstract: A control system by which locomotives and accessories in a model railway can be separately and independently controlled by modulating a common power supply for the locomotives and accessories, comprises a transmitter unit for modulating the output voltage of the power supply and a separate receiver associated with each locomotive and accessory. Each transmission is preceded by a pulse-width modulation of the carrier which will produce in each receiver an electrical signal which is immediately compared with stored pre-programmed information so only one receiver will respond to any one particular pulse width to open the channel for the subsequent reception by that receiver of subsequent modulations of the transmission in the form of a plurality of pulses the number of which is decoded to provide information for controlling the speed, direction of a locomotive or operation of an accessory. Security can be added by requiring identity between two pulses of equal duration separated by a given dwell time and by rejecting pulses of incorrect pulse width before an information modulation is counted. <IMAGE>
Patent GB-2014487-A (GB)
Title: Varying metal-mould contact in continuous casting
IPC: B22D11/049
Filed: 1979-02-14
Abstract: Method and apparatus for the direct chill casting of non-ferrous metals (e.g. Al) comprising varying the chill depth of the mould independently of the level or quantity of liquid metal in the mould by relatively moving the mould and a "hot-top" which may be a sleeve 4 of refractory material during casting. Alternatively the chill depth is varied by introducing gas into the annular gap between the sleeve and the mould to force the metal downwards. When moving the mould, moving may be effected by a piston-cylinder arrangement. <IMAGE>
Patent GB-2014426-A (GB)
Title: Artificial creams
IPC: A23L29/10
Filed: 1979-02-15
Abstract: Artificial creams essentially free from milk proteins are particularly suitable as coffee creams and comprise an emulsion of edible fat, especially containing up to about 30% lauric fat, with an emulsifier system comprising a mixture of lecithin with selected nonionic and an ionic emulsifier preferably having a predetermined range of HLB activity. Gums, sugar, colour and flavouring may also be present.
Patent GB-2042776-A (GB)
Title: Improvements in or relating to digital data recording and decoding systems
IPC: G11B20/18
Filed: 1979-02-21
Abstract: A digital data recording and decoding system is particularly applicable to single track magnetic recording and decoding. The recording system includes means for dividing a data stream into n bit length data words (where n is an integer), and a parity generator for generating for each data word a parity bit to be appended to the data word to form a primary codeword wherein the parity bit is generated from n spaced bits of the data stream preceding the data word, and wherein the spacing between the spaced bits corresponds to m data words plus one bit, where m is an integer and is sufficiently large to avoid a burst error from spanning two or more spaced bits. The decoding system for decoding data recorded by the recording system includes a plurality of shift registers in series for serial reception of the primary codewords, wherein each shift register has a bit length of m(n+1)+1 and has a correction register connected thereto, and means for applying correction signals via the correction register to erroneous data bits of the primary codewords when the parity bits are at the shift register inputs.
Patent GB-2016146-A (GB)
Title: Electromedical system
IPC: A61B5/00
Filed: 1979-03-07
Abstract: An electromedical system comprises at least one sensor to be placed in a patient's armpit and a movable unit for wireless measuring of signals transmitted by the sensor. The sensor is composed of an oscillatory circuit L1 driven by a lower frequency oscillator. The oscillator in the form of an RC- oscillator comprises a symmetrically coupled feedback operational amplifier, the output signal of which controls the oscillatory circuit via capacitive diode D3. A bridge circuit containing parameter- sensitive elements e.g. pressure sensitive capacitor CV and temperature sensitive resistors RV1, RV2 is connected in the feedback loop of the amplifier, power to the oscillator being supplied over antennae L. Thus changes in the parameter sensitive elements change the pulse output frequency of the oscillator and hence the output from the oscillatory circuit will be a pulsating complex FM-signal which is picked up by a portable receiver. <IMAGE>
Patent GB-2019847-A (GB)
Title: Bicyclooctanes, processes for producing them and pharmaceutical compositions containing them
IPC: A61K31/215
Filed: 1979-03-08
Abstract: The invention concerns a bicyclooctane derivative of the formula,   <IMAGE> wherein A is optionally present and is C1-4 alkylene, R1 is hydrogen or C1-4 alkyl, R2 is hydrogen or C4-7 alkyl, R3 is hydrogen or C1-4 alkyl, X is optionally present and is ethylene or vinylene and R4 and R5 are each, independently of one another, hydrogen or a hydroxy-protecting group; or a non- toxic salt. Such compounds wherein each of R4 and R5 is hydrogen are useful for prevention of thrombosis.
Patent GB-2027551-A (GB)
Title: Illuminated panels
IPC: G09F13/18
Filed: 1979-03-21
Abstract: A self-illuminating panel in which characters are unobtrusively illuminated by projection of light into a narrow face of a transparent flexible lamina 3 marked with the characters 4. Each character 4, which may be a translucent printed figure, provides an optical discontinuity which disperses the light so that the diffusely illuminated character can be viewed in contrast against a dark background behind the lamina. Pressure applied on and through the flexible lamina enables operation of an array of switches 11 disposed behind the lamina. <IMAGE>
Patent GB-2020561-A (GB)
Title: Continuous casting method
IPC: B22D11/12
Filed: 1979-04-04
Abstract: A method of stirring the non- solidified melt 6 in a cast metallic strand 5 from a continuous casting machine, the strand 6 being formed in a mould 3 and the stirring being performed by at least one electro- magnetic stirrer 7 arranged to generate a magnetic travelling field in the cast strand. The or each stirrer 7 is supplied with multiphase current and the stirring is performed in such a way that either the phase current in one phase deviates by at least 10 per cent from the phase current in another phase and/or that the phase coils are correspondingly asymmetric in relation to each other. <IMAGE>
Patent GB-2019419-A (GB)
Title: Process for producing ethylene copolymers
IPC: C08F4/60
Filed: 1979-04-17
Abstract: Ethylene copolymers having a density of from 0.900 to 0.940 g/cm<3>, are prepared by copolymerizing ethylene with another unsaturated hydrocarbon monomer(s) in the presence of a catalyst comprising a titanium and/or vanadium compound and an organoaluminium compound supported on a magnesium compound, the copolymerization being carried out in a liquid phase comprising the unsaturated hydrocarbon comonomer.
Patent GB-2021170-A (GB)
Title: Method of Impregnating Insulated Coils in the Winding of an Electric Machine
IPC: H01B19/02
Filed: 1979-05-18
Abstract: Air spaces inside the insulation of the coils and between the conductors of an electric machine are filled by pumping an impregnating agent into the coil end insulation or into the channel insulation, and the impregnating agent is cured after the filling. The pumping is carried out through a hole made or left in the insulation by means of a tubular nozzle.
Patent GB-2052898-A (GB)
Title: Digitally controlled signal level adjusting apparatus
IPC: H03G3/04
Filed: 1979-06-25
Abstract: A digitally controlled level adjusting apparatus in which the output voltage of a linear-type potentiometer or attenuator (11) connected across a DC power supply (+V) is converted into a digital control signal by an A/D converter (12), the output voltage being linearly related to the manipulated variable of the slider of the potentiometer, the digital control signal is applied as an address signal to a memory (14) which stores in memory locations thereof a series of level control digital values with a desired changing characteristic, thereby reading out of an accessed location a level control value corresponding to the attenuation set by the potentiometer, and a digitized audio information signal to be level- controlled is multiplied by the level- control value read out of the memory by means of a digital multiplier (15). <IMAGE>
Patent GB-2060842-A (GB)
Title: Methods of repairing refractories for sliding valves and means for performing it
IPC: B22D41/30
Filed: 1979-08-01
Abstract: Method of repairing refractories for sliding valves, fixed to any metallurgical container in order to pour any kind of molten metal, consisting in filling the damaged/eroded parts with suitable cement(s) and a further method of repairing said refractories for sliding valves by drilling a suitable hole and by fitting in it a suitable insert.
Patent GB-2027131-A (GB)
Title: Hydraulic conveying
IPC: B65G51/02
Filed: 1979-08-07
Abstract: In apparatus for liquid transporting of items such as chopped nuclear fuel pins, an inlet duct 12 extends downwardly from a receiving station to a region 11 where it is joined to an outlet duct 13 which extends upwardly to the discharge station. The region 11 is connected to a source capable of applying a pressure pulse to the liquid so as to displace the liquid upwardly in at least the outlet duct and thereby transport the items through the apparatus. Two or more apparatus may be connected together in series relationship to provide a plant for the transport of the items through the plant. <IMAGE>
Patent GB-2029885-A (GB)
Title: Prefabricated building
IPC: F24F13/32
Filed: 1979-08-10
Abstract: A wall for a prefabricated building has an aperture 10 therein which may be closed by a closure member 14, and a support bracket 16 for mounting an air conditioning unit in association with the aperture so as to give the air conditioning unit access to the interior of the building through the aperture when the closure member is open, the support bracket being movable between a retracted position in which it lies in or closely adjacent the aperture and an extended position in which projects outwardly of the aperture and the wall. <IMAGE>
Patent GB-2029682-A (GB)
Title: Crop cutting apparatus
IPC: A01D34/66
Filed: 1979-08-31
Abstract: Crop cutting apparatus comprises cutter drums 29, 29' and gear boxes 41, 41' mounted on subframes 16, 16', which are pivotally mounted on main frame 13 to allow independent vertical movement of the drums 29, 29'. Each drum 29, 29' is driven by a flexible belt drive 42, 42' from its gear box 41, 41' to protect the gear boxes from ground shock. The gear boxes 41, 41' are driven by a cross-shaft 48 from a tractor p-t-o. The drums are driven by untimed drive and clash of cutting knives 31, 31' is prevented by a spacing roller 102 which rolls over a cam plate 102' and forces the drums 29, 29' apart when the drums are cutting at the same level. Support members 9 and 9' move apart on cross members 21, 21' and are linked together by tie bar 103 to give overlap of cutters when cutting at different levels. <IMAGE>
Patent GB-2031530-A (GB)
Title: Bellows seals
IPC: F16J3/04
Filed: 1979-09-06
Abstract: The invention provides a cylindrical pleated gaiter in which the block height is reduced as compared to known gaiters. Such reduction is obtained by forming adjacent pleats or folds (4) with different inner and/or outer diameters. The diameters of adjacent pleats or folds preferably deviate from each other by amounts corresponding to the radial length of an unshortened pleat or fold. <IMAGE>
Patent GB-2035283-A (GB)
Title: Layers of peat and cellulose bonded into a sheet
IPC: A01G1/00
Filed: 1979-10-16
Abstract: A peat paper used to improve the quality of the soil in connection with planting, sowing or weed-control. The paper consists of peat fibres (4), cellulose fibres (1), and a bonding agent. The disclosure also teaches the method of producing said peat paper. The peat paper is characterized in that in a lower layer the cellulose fibres (1) support the peat fibres (4) and in that the cellulose fibres and peat fibres (1,4) are bonded together by means of the bonding agent in a dry-formation process so as to form paper-like sheets or webs. The resulting peat paper is soft and owing to its method of production controlled amounts and/or layers of additives, such as fertilizers, seeds, hormones, and similar additives may be incorporated into the paper.