baber/WOPTO huggingface dataset:
Patent GB-1007441-A (GB)
Title: Electric switches
IPC: H01H3/54
Filed: 1963-12-02
Abstract: 1,007,441. Switches, partly electromagnetic. ILLINOIS TOOL WORKS Inc. Dec. 2, 1963 [Dec. 4, 1962], No. 47478/63. Heading H2B. A permanent magnet 82 carried by a pushbutton 66 normally attracts an armature 78 so that on depression of the push-button a plunger 80 carried by the armature engages a push-button 36 of a bi-stable switch mechanism to move a change-over contact bridge from an upper to a lower position. The bridge is returned to its upper position by energization of an electromagnet 24 which causes a plunger 52 carried by an adjustably positioned armature 50 to engage a push-button 38 of the switch mechanism. On simultaneous actuation of the push-button 66 and electromagnet 24 the contact bridge is moved to its upper position and the armature 78 is detached from permanent magnet 82, rendering push-button 66 ineffective. A plurality of coupled switch mechanisms may be provided. The push-button 66 may be actuated manually or by a cam.
Patent GB-1197117-A (GB)
Title: Transducer Apparatus
Inventor: SCANLON THOMAS ALBERT
IPC: H04R3/00
Filed: 1968-10-07
Abstract: 1,197,117. Receiver; wind broadcasting. P. M. & E. ELECTRONICS Inc. 7 Oct., 1968, No. 47479/68. Headings H4J and H4R. In a system for distributing recorded music, radio broadcasts and the like to passengers in a vehicle, a housing is provided which includes a transducer and a sound tube head set detachably connected to the housing, and a pair of contacts in at least one of the programme circuits which can be removed to open an electrical circuit to the transducer. A moving coil transducer has a diaphragm 20 which is connected to a head set through tubes 67, 68 which are inserted into orifices 29, 31 and communicate through valves 91, 92 to chambers 28, 30 adjacent the diaphragm. The transducer is mounted in a housing 10 which is mounted in a casing 10A having a selector switch 39 and volume control 36 and is joined to the programme outlet through cable 51. In cases where at least one of the programmes is charged, one incoming line is diverted to contacts 58A, 58B which terminate in sleeves 62, 64 around orifices 29, 31. When the charge has been paid a special head set is provided with a connecting element 72 which bridges contacts 62, 64. Alternatively a metal screw can be inserted in hole 5 to bridge contacts 62, 64 so that all programmes can be received. The distributed programmes can include T.V. audio channels and stereo channels and the three gang selector switch is constructed so that the series connected transducer coils (18) (24) can be energized separately or together through ganged volume controls, Fig. 5 (not shown).
Patent GB-980109-A (GB)
Title: Trifluoromethylphenyl polysiloxanes
IPC: C07F7/08
Filed: 1962-12-18
Abstract: The invention comprises compounds of the formula <FORM:0980109/C3/1> where n and a are each 0 or 1, and b is 1, 2, or 3, and R is a monovalent hydrocarbon radical without aliphatic unsaturation, and polymers thereof.  They are prepared by the reaction of tetraphenyl disiloxane diol-1,3 or hexaphenyl trisiloxane diol-1,5 with the appropriate organohalosilane <FORM:0980109/C3/2> where X is halogen, and a is as above, in an inert solvent, in the presence of a hydrogen halide acceptor, e.g. a tertiary amine, in particular pyridine. Polymers containing the recurrent unit <FORM:0980109/C3/3> where a, b and n, and R are as above, are prepared by heating the compounds (I) alone at 250-350 DEG  C., or, preferably, with a catalyst at 120-170 DEG  C.  A suitable catalyst is a 0.01-1% solution of KOH in octamethylcyclotetrasiloxane, amounting to 10-100 p.p.m. of KOH in the monomer.  Copolymers of compounds (I) with themselves or other cyclic polysiloxanes, e.g. those of Specifications 980,101, 980,102, 980,103, 980,104, 980,105, 980,106, 980,107 and 980,108, or cyclic dialkyl- or diaryl-polysiloxanes, are made from mixtures in the same way.  All polymers containing units (II) can be cross-linked by irradiation, e.g. with 50,000-20,000,000 eV electrons, and those containing vinyl, cyclo alkyl or adjacent methyl groups, or alkyl groups with more than one carbon atom, can be cured with conventional free radical (e.g. peroxide or zirconyl nitrate) curing agents. Fillers may be added before cure, if desired, and may suitably be silica (aerogel, fumed, precipitated), TiO2, CaCO3, CaSiO3, Fe2O3, Cr2O3, CdS, lithopone, asbestos, talc, carbon black, glass fibres &c. The examples describe the preparation of 1,1 - bis - (m - trifluromethylphenyl)tetraphenyl cyclotrisiloxane and of p-trifluoromethylphenyl pentaphenyl cyclotrisiloxane, and the preparation and use of their polymers for encapsulation of transformers.  Also described is the preparation, and cure by irradiation, of a copolymer of octamethylcyclotetrasiloxane with 1-methyl-1 - [3,5 - bis - (trifluoromethyl) - phenyl] - hexaphenylcyclotetrasiloxane.  Uses:-Seals in automotive transmissions, flexible supports for elements to be used in atomic reactors.
Patent GB-1182042-A (GB)
Title: Improvements in and relating to Devices for Producing High Heat Fluxes
Inventor: GUEGAN JEAN-CLAUDE
IPC: G01N25/00
Filed: 1968-10-08
Abstract: 1,182,042. Resistance heating elements. COMMISSARIAT A L'ENERGIE ATOMIQUE. 8 Oct., 1968 [11 Oct.. 1967], No. 47649/68. Heading H5H. Insulated electric heating resistances 8 are disposed on the generatrices of a solid cylindrical metal member 1 which concentrates the heat flux in a plane portion 3 in engagement with a specimen 13 to be heated, the member 1 being shaped as shown with, in cross-section, part circular portions 4, 5, interconnecting the part circular portion 2 and plane portion 3. To reduce heat losses along portions 4, 5, the member 1 is placed in an evacuated enclosure 14 with reflecting inner walls and heat insulation on its outer surface. The mount for specimen 13 is heated by auxiliary resistances (not shown) to the same temperature as plane portion 3, to reduce conduction heat losses. Two thermocouples (not shown), one near portion 2 and one on member 1 remote from portion 2, control current through resistances 8, and thereby heat flux through specimen 13.
Patent GB-988276-A (GB)
Title: Improvements in or relating to stuffing boxes
IPC: B29C43/42
Filed: 1962-12-19
Abstract: 988,276. Stuffing-boxes. SIGMA OLOMOUC NARODNI PODNIK. Dec. 19, 1962 [Dec. 27, 1961], No. 47895/62. Heading F2B. A stuffing-box gland is formed by two identical parts 18 and 19 each comprising a half-cylindrical sleeve 15 and a flange having end portions 11 which have stud holes 12 therein and are axially offset relative to each other by their thickness 23 so that the portions 11 of one part overlap that of the other when the parts are assembled. The parts may be of aluminium coated with plastic.
Patent GB-1255923-A (GB)
Title: Improvements in or relating to extractor mechanisms for weapons
Inventor: BRINT NORMAN TREVOR
IPC: F41A15/10
Filed: 1965-11-11
Abstract: 1,255,923. Extractor mechanism for weapons. DEFENCE, SECRETARY OF STATE FOR. 9 Nov., 1966 [11 Nov., 1965], No. 48007/65. Heading F3C. An extractor mechanism for a weapon of the type having an automatic sliding breech mechanism, in which mechanism a breech block slides transversely of the breech face and is operated to open the breech upon recoil of the weapon relative to a cradle or mounting, includes an extractor which is moved into engagement with the spent cartridge case during recoil of the weapon after firing and recoils with the weapon, the extractor being retained with the spent case in a rearward position during run-out of the weapon, thereby effecting extraction of the case from the breech. Retention of the extractor may be achieved by means of a spring catch. In a preferred form, the extractor also performs the function of a rammer and is arranged to recoil with the weapon against the action of a return rammer spring to its rearward position where it is retained while the weapon runs out to effect extraction and while a new round of ammunition is inserted into the extractor. Release of the extractor then permits it to be driven forward by the rammer return spring to ram the new round into the chamber of the weapon. The extractor is conveniently released by the action of inserting the new round, e.g. by arranging for the round or some part of the loading mechanism to engage and release the spring catch. The ramming of the new round into the chamber releases the breech block retaining latch which is provided to hold the breech block open during reloading, whereby the breech block closes automatically after ramming the new round. The extractor is pulled into engagement with the spent cartridge case by engagement with the breech block as it opens. Primary extraction, or loosening, of the case is effected by means of wedge action between can faces, or ramps, on the breech block and extractor which interact toward the end of the opening movement of the breech block to move the extractor away from the breech face.
Patent GB-483700-A (GB)
Abstract: 483,700. Wireless receiving-apparatus. RAZ, O. Dec. 15, 1937, No. 34771. [Class 40 (v)] A wireless receiving- set, comprising a wireless set and a clock 12 arranged in a cabinet 10 supported upon legs 18 and having the appearance of a clock housing; has a speaker arranged to project sound downwards through an aperture in the floor of the housing. Control knobs 19 projecting from the side of the housing are concealed by a member 11 hinged to the main body.
Patent GB-1384935-A (GB)
Title: Ion implanted resistor and method
IPC: H01L21/822
Filed: 1972-10-20
Abstract: 1384935 Integrated circuit resistors CORNING GLASS WORKS and SIGNETICS CORP 20 Oct 1972 [1 Nov 1971] 48467/72 Heading H1K An ion implanted resistor is formed on a silicon substrate by boron ions at various energies, bombarding the substrate, through an oxide layer shield, and subsequently heat annealing. The value of the specific resistance so produced is controlled by ion energy, the oxide layer thickness, and the time and temperature of the annealing process, and its temperature stability is a maximum 3% over the range - 55‹ to + 125‹ C. and 0À3% over the range 0‹ to 70‹ C. The resistor-is fabricated on a silicon body 11 of N-type conductivity, whereon an oxide masking layer 13, which is relatively thick (e.g. 1 micrometer), is formed. Openings 14 are formed and a P-type impurity, e.g. boron is diffused into the body 11 to form dish-shaped P-N junction contact regions 16, there being some oxide regrowth at 13a. Layer 19 is formed to a precise predetermined thickness (e.g. 1300 Šngstroms). Ion implantation is used to introduce P-type impurity ions, e.g. boron, into the body 11 by accelerating the ions in a vacuum to an energy of 25 to 150 keV to provide 10<14> to 5 x 10<15> boron ions per sq. cm. of semi-conductor. Implantation regions 21 are thereby formed. The structure as in Fig. 4 is then annealed in a nitrogen atmosphere at 500‹ to 700‹ C., the time and actual temperature of which is chosen to suit the resistance value and tolerance, which parameters are further influenced by the ion implantation energy, and layer thickness 19. Graphs are included to show the effect of all these factors under different experimental conditions. The final process is as Fig. 5, where openings 26 are etched above contact regions 16, and. metal leads 27 are deposited by photolithographic means. When the annealing temperature is above 575‹ C. a refractory metal is used, and below this temperature aluminium may be used.
Patent GB-1100607-A (GB)
Title: Improvements relating to storage tanks with floating roofs
Inventor: LAYCOCK SYDNEY JOHN
IPC: B65D88/38
Filed: 1965-11-16
Abstract: 1,100,607. Tanks with floating roofs. WHESSOE Ltd. 15, Nov., 1966 [16, Nov., 1965], No. 48570/65. Heading E1T. A storage tank of the floating roof type is provided with storm water drainage means consisting of a pump 4 which is disposed in a sump 3 and operated by a fluid-pressure motor 5 controlled by a float 6. Discharge is effected through a system including a flexible hose 8 having a counterweight 13 and passing over a pulley system 11, 12 as shown. The motor is supplied through a system similar to the above or a fixed pipe 17 connected to a self-coiling hose 15. For other minor modifications the Specn. should be referred to.
Patent GB-1484626-A (GB)
Title: Set course transmitter
IPC: G05D1/02
Filed: 1974-11-11
Abstract: 1484626 Automatic control ANSCHUTZ & CO GmbH 11 Nov 1974 [13 Nov 1973] 48749/74 Heading G3N A reference transmitter, settable to a desired course angle as a reference value for a course controller installed on board a ship, comprises an actual course indicator, and an indicator showing set course in relation to actual course, the set course corresponding to the angular position of a shaft which is adjusted by a stepping motor under control of an electronic pulse emitter receiving signals from a setting means and a digital computer which in a programmed transmitter mode stops the stepping motor when feedback shows that the set course has reached a set value or the stepping motor has completed the prescribed steps. As shown, a stepping motor 1 is controlled by an electronic pulse emitter 9 and drives via gearing 2 an input of a differential unit 3 and an angle converter 4 to a desired course angle. The actual course is supplied by a gyro-compass G to a second input of the unit 3. The output of the unit 3 positions a course error indicator 5 and sets a pointer of an indicator 6 showing set course in relation to actual course. The course error is fed to a known course controller 8. In a programmed mode, related by a switch 10 signals from the setting means 11 and error transmitter 5 are barred from the emitter 9 and the pulse emitter 9 causes the stepping motor 1 to rotate in response to two different signals produced by a digital computer 12 in response to feedback from the angle converter 4 and pulses from the emitter 9 indicative of the number of increments to achieve the adjusted set course. In an alternative embodiment the input from gyro-compass G is through a synchro-transmitter and in a further embodiment the differential unit 14 is replaced by a differential synchro-transmitter.
Patent GB-1112497-A (GB)
Title: Process for manufacturing polyurethane elastic fibre having less adhesivity
Inventor: MATSUBAYASHI KANJI
IPC: D01F6/72
Filed: 1966-11-01
Abstract: Polyurethane elastic fibres having less adhesivity among yarns and among single filaments are prepared from a spinning solution comprising a polyurethane elastomer and 0.01 to 50% by weight of the elastomer of a compound containing an aliphatic hydrocarbon group of 4 to 50 carbon atoms and being an ester of a carboxylic acid, amide, nitrile, alcohol, aldehyde, ketone, mono-amine containing no alicyclic rings, diamine, in which both amine groups are primary, urethane, ureide or sulphonic acid ester.  The spinning solution is spun by conventional methods i.e. wet, dry, semi-melt or melt-spinning.  Suitable polyurethane elastomers are those prepared by reaction of a polyether, polyester, polyetherester or polyacetal with an organic polyisocyanate and a chain extending agent such as a diamine, diol or water. Numerous additives are listed those exemplified being methyl oleate, stearic acid amide, palmityl alcohol, the phenyl urethane of cetyl alcohol, stearonitrile, octyl aldehyde, methyl octadecanesulphonate, monoureido stearate, ethyl butyl ketone and octylamine.
Patent GB-1217780-A (GB)
Title: Digital companding loops for monobit encoder
IPC: H03M3/02
Filed: 1968-10-16
Abstract: 1,217,780. Encoding and decoding. R.C.A. CORPORATION. 16 Oct., 1968 [17 Oct., 1967], No. 48979/68. Heading G4H. A communication system of the type in which an analogue input signal is transmitted as a stream of bits, "1" or "0", each bit being the result of one comparison of the input signal with a feedback signal includes an encoder (Fig. 1) transmitting the output bit stream and generating a feedback signal dependent on both the value of the latest comparison and the values of different combinations of successive bits in the bit stream and a decoder (Fig. 2) generating an analogue output signal on lead 40 the value of which is determined by both the last bit of the bit stream received and the values of combinations of successive bits. In the embodiment described for delta sigma encoding the transmitted bit stream is also entered into a shift register 9 in the encoder, gates and level generators 12-17 delivering an output signal of different predetermined amplitudes when 2, 3 or 4 successive bits have the same value. These signals are added by a summer 1 to the input signal together with the output on lead 10 from a bistable 8 which gives a negative signal when a comparator 3 is triggered by a positive output from an integrator 2 connected to summer 1 and a positive signal otherwise. The output bit stream is derived from the output of comparator 3. At the decoder, after shaping, the pulse stream is fed to a shift register 29 controlling similar gate and level generators 30-35 and to a bistable 28 the outputs of the level generators and bi-stable being connected via an algebraic summer and a low pass filter to the output lead 40. The amplitude of the signals generated by level generators 12-17 and 30-35 may be linearly or logarithmically related.
Patent GB-1294579-A (GB)
Title: Chuck for machine tool
IPC: B23B31/167
Filed: 1970-10-15
Abstract: 1294579 Chucks CRI-DAN SA 15 Oct 1970 [15 Dec 1969] 49044/70 Heading B3B  A chuck in which clamping jaws 3 operate upon axial movement of a floating member 15 which has a plurality of inclined ramps 14 'associated with jaw-operating levers 10, is provided with a balancing device for compensating eccentricity of the member 15 due to its weight. The balancing device comprises centrally pivoted levers 24 forward ends 26 of which bear upon member 15 and rearward ends 27 of which bear upon a further floating member 23. Levers 24 are pivoted to a ring 16 which is spaced from member 15 by washers 17, 18. Axial movement of the member 15 is accomplished by actuation of hydraulic jacks 19 secured to a plate 7 which is fixed to the headstock 6 of the machine-tool, e.g. lathe. The jacks are operative to shift a member 21 which supports ring 16 in bearings 22. The rotary body 1 of the chuck is secured to the machine spindle 5 by screws 4. The jaw-operating arrangement allows limited movement of the jaws to compensate for eccentricity or geometrical defects in the surface of a workpiece, e.g. tube 9. The chuck also includes centring jaws (2) (Fig. 1, not shown).
Patent GB-1159748-A (GB)
Title: Thiol-Type Thiamine Thionocarbonates
IPC: C07D415/00
Filed: 1967-10-31
Abstract: 1,159,748. Thiamine thionocarbonates. SHIONOGI & CO. Ltd. 31 Oct., 1967 [2 Nov., 1966], No. 49320/67. Heading C2V. Thiol-type thiamine thionocarbonates of formula where each R and R<SP>1</SP> is hydrogen, alkyl, alkenyl, alkoxy or halogen, are obtained by reacting an alkali metal salt of thiol-type thiamine of formula where Met. is an alkali metal, with a compound of formula where X is a halogen atom and R and R<SP>1</SP> are as above, in an inert solvent. Examples are given. The above compounds show anti-inflammatory activity and may be administered with a pharmaceutical carrier, e.g. lactose, mannitol, corn starch, talc and magnesium stearate. Other ingredients, e.g. riboflavin, pyridoxin, folic acid, biotin, inositol and mineral salts may be included.
Patent GB-1543687-A (GB)
Title: Method of forming insulating sheaths
IPC: B29C71/02
Filed: 1977-11-28
Abstract: Pipes or pipe bundles are insulated with a thermoplastic foam, the insulating sleeve being obtained from a flat strip of foam by deforming it transversely to its longitudinal extent and closing the butt seam by welding or adhesion bonding. The strip is briefly heated, on its side forming the subsequent inner side of the insulating sleeve, to the thermoelastic or thermoplastic state and in this state is preformed to the desired insulating sleeve cross-section. The pipe or the pipe bundle is introduced continuously through the open butt seam of the preform and subsequently the butt seam is closed. The process is simple and economical and is suitable for insulating rigid and flexible pipes or pipe bundles.
Patent GB-1240213-A (GB)
Title: Improvements in or relating to cameras
IPC: G08G1/054
Filed: 1969-10-08
Abstract: 1,240,213. Cameras. INGRAMS PHOTO SHOP (PTY.) Ltd. Oct.8, 1969 [Oct.21, 1968], No. 49521/69. Heading G2A. A camera has an attachment 17 comprising an enclosed housing attached to the rear face 13 of a camera, a lens 29 mounted in the housing in optical communication with the rear surface of a film through an opening 15 in the rear surface of the camera body, a clock 22 inside the housing and laterally spaced from the principal axis of the lens one or more lamps 23 to illuminate the clock when the camera trigger is operated, and means 21 to reflect an image of the clock on to the rear surface of the film through the lens. The reflecting means is a mirror inclined at an angle of 45 degrees with the principal axis of the lens. The clock has hour, minute and second hands, and additionally displays the date and whether the time indicated is before or after noon. The camera may be mounted in a rapid drive housing.
Patent GB-1433366-A (GB)
Title: Railway track and a method of laying the same
IPC: E01B3/40
Filed: 1973-10-24
Abstract: 1433366 Ballast-free railway track REGIE AUTONOME DES TRANSPORTS PARISIENS 24 Oct 1973 [24 Oct 1972] 49541/73 Heading E1G In a method of laying a railway track on a concrete road-bed 4 a series of individual preformed or other slabs 7 are laid on the bed 4 and keyed thereto (as by studs 6), whereafter sleeper blocks 2 are embedded in the slabs and a rail 1 mounted on the blocks. As shown each slab 7 supports two blocks 2 embedded in a top recess by concrete filling 10; each slab 7, seated on a cushioning layer 9, is held against a side wall 5 by concrete filling 8; the filling 8 lies between two series of slabs, Figs. 1, 2 (not shown), supporting the two rails of a single track railway in a tunnel bottom, opposed sleeper blocks being connected by tie bars 3. The cushioning layer 9 may be formed by panels or by a paste. The track may be additionally quietened by rubber wedges between the rail 1 and block 2, and by rubber cushioning around the block 2.
Patent GB-1429814-A (GB)
Title: Navigation aiding systems
IPC: G01S13/78
Filed: 1973-10-26
Abstract: 1429814 Radio navigation ELLIOTT BROS (LONDON) Ltd 9 July 1974 [26 Oct 1973] 49931/73 Addition to 1,388,620 Heading H4D In a navigation aiding system in accordance with the main Specification 1,388,620, a craft interrogating a relatively fixed station during a synchronizing period decodes its own interrogating signals and maintains constant the time period between the start of the synchronizing period in craft time and the time when it decodes its own interrogating signal, while the fixed station, responding to the craft by transmitting time synchronizing signals, maintains constant the time from a predetermined point in the time allocation slot to the time it decodes its own transmitted response signal. These time periods are chosen to be equal so that cancellation of errors to a first order, due to variable delays in the signal processors in the craft and on the ground respectively, is stated to be effected. The airborne and ground equipment are modified so that the craft receiver (Fig. 2) and ground station (Fig. 3, not shown) may detect the occurrence of their own transmitted signal by the introduction of couplers 5 and 9 and sample mixer 7 so that a signal transmitted from aerial 6 is also detected in receiver 8 as a received response.