baber/WOPTO huggingface dataset:
Patent GB-1137140-A (GB)
Title: Separable fastener device
IPC: F16B5/00
Filed: 1965-12-07
Abstract: 1,137,140. Stud and socket fastenings; turn buttons. GOBIN DAUDE S.A. 7 Dec., 1965 [22 Dec., 1964], No. 51929/65. Headings E2A and E2B. In a fastener device comprising a clamping head 10 pivotally mounted on a stud member 15 for releasably securing to the latter an eyelet or like member, the clamping head includes a shank portion 12 terminating at its free end in a conical member 13, and the stud member includes a pair of resiliently distortable means 21 adapted to grip the shank portion 12 of the clamping head 10, the conical member 13 defining a shoulder 14 arranged to abut the distortable means 21 to prevent removal of the head from the stud. As shown, the stud member 15 is formed with an elliptical collar 19 for the reception of a similarly shaped eyelet which is retained by rotation of the clamping head through 90 degrees from the position shown.
Patent GB-1446218-A (GB)
Title: Sliding doors
IPC: E05D15/06
Filed: 1973-11-13
Abstract: 1446218 Sliding doors for rail vehicles P C HENDERSON Ltd 12 Nov 1974 [13 Nov 1973] 52557/73 Heading B7L [Also in Divisions E1- E2] A sliding door suitable for railway rolling stock and road vehicles runs on an assembly of case-hardened steel rollers 4 mounted on spindles 3 in a channel 1. The top of the door may have an elongate channel shaped bracket 8 bearing a series of rollers 9. The sprocket 10 driven by an electric motor 11 engages the rollers 9. A guide wheel 7 mounted on a vertical axle 7a positions the door between the rails 12. The bottom of the door has a similar guide wheel. The support rollers 4 should be spaced apart and the channel open at the bottom so that debris can fall through.
Patent GB-1242593-A (GB)
Title: Electronic switching circuit
Inventor: FIORENTINO GUIDO
IPC: H03K17/97
Filed: 1968-11-07
Abstract: 1,242,593. Proximity detector circuits. ING. C. OLIVETTI &c. S.p. A. Nov.7, 1968 [Dec.4, 1967], No.52872/68. Heading G1N. In the proximity detector circuit shown in Fig.1, the transistor T assumes oscillatory and non- oscillatory states depending on the value of the inductance L, to produce, after smoothing by capacitor Cu, two well defined D.C. voltage levels at the output M. A further Zener diode K may be connected at M to provide a zero voltage output signal for the non-oscillatory state. The inductance L may comprise an air or ferromagnetic cored winding and may be varied by the approach of a tooth on a toothed wheel, the circuit ceasing to oscillate when a tooth is presented.
Patent GB-1136218-A (GB)
Title: Improvements in or relating to the manufacture of semiconductor optical devices
Inventor: STERLING HENLEY FRANK
IPC: H01L31/0216
Filed: 1965-12-14
Abstract: 1,136,218. Coatings of inorganic compounds or elements. STANDARD TELEPHONES & CABLES Ltd. 14 Dec., 1965, No. 52993/65. Heading C1A. [Also in Divisions C4, C7 and H1] In a method of providing an anti-reflecting coating on an optical surface of a semi-conductor optical device, the surface is coated with a layer comprising an element or an inorganic compound, the energy necessary to promote the required chemical action for the formation of the layer being provided by establishing a plasma adjacent to the surface in an atmosphere which when the layer comprises an element contains the said element as a compound and which when the layer comprises an inorganic compound contains all the elements of said inorganic compound, all the inorganic compound elements being present in the atmosphere as inorganic materials other than said inorganic compound with at least one of these inorganic materials being an inorganic compound. The optical device may be a light emitting device such as a gallium arsenide light emitting diode or a light receiving device such as a photodiode or photo-cell. The term light includes the visible, ultra-violet and infra-red regions of the spectrum. Fig. 1 shows apparatus for providing silicon nitride anti-reflecting coatings on gallium arsenide light emitting diodes 8 on a support 7 in a glass tube 1. A vacuum pump connected to an outlet 3 reduces the system pressure to OÀ2 torr and SiH 4  and NH 3  are supplied through an inlet 2. An R.F. power source with an output frequency of 4 mc./sec. is connected to a metal mesh which surrounds the tube 1 to produce a plasma. Other coatings (c) which may be provided and the starting materials (m) forming the gaseous atmosphere are The coating may comprise a single layer, a multiple layer or a graded layer, e.g. of silica merging into titanium oxide, e.g. produced by progressively changing the constituents of the gaseous atmosphere. Fig. 3 shows an anti-reflecting silicon nitride layer 18 on a gallium arsenide light emitting diode element comprising a body 14 of N-type gallium arsenide having a P-type region 16, a silica layer 15 and an indium electrode 17, the whole being sandwiched between copper plates 9a, 9b.
Patent GB-1159886-A (GB)
Title: Atomic Frequency Standards
Inventor: HELGESSON ALAN LEE
IPC: H03L7/26
Filed: 1967-11-24
Abstract: 1,159,886. Automatic frequency control systems; phase sensitive detectors. VARIAN ASSOCIATES. 24 Nov., 1967 [9 Dec., 1966], No. 53662/67. Heading H3A. An atomic frequency standard of the type wherein the standard frequency is frequency modulated at a low frequency (107 Hz) and applied to a gas cell 2 illuminated by a source 5, is characterized in that the output of the photodetector 8 is passed in series to a phase-sensitive detector 13 supplied with the second harmonic (214 Hz) of the modulation and to a second phase-sensitive detector 19 supplied with the modulation frequency, the output of the latter providing an error signal for controlling the oscillator 7 which generates the standard frequency. The output of the first detector 13 preferably passes through an amplifier 16 to an RC high-pass filter 17 which separates the fundamental component and to an RC low-pass filter 18 which passes the detected second harmonic D.C. component to an alarm gate 23 wherein it trips an alarm if its amplitude falls below a predetermined value, thereby indicating that frequency lock has been lost. The fundamental and second harmonic signals are preferably generated from an oscillator 14 via flip-flops 15 and 21 acting as frequency dividers so that these signals contain no even harmonics. Phase-sensitive detectors, Fig. 2.-On one half-cycle of the reference signal applied to terminals 36 and 37 the FETs 25 and 31 conduct to allow the input from terminal 34 to pass in one direction through the load resistance 29; on the next half-cycle the FETs 26 and 32 conduct whereby the input passes through resistance 29 in the opposite direction.
Patent GB-1147110-A (GB)
Title: Anthraquinone reactive dyestuffs
Inventor: BIEN HANS-SAMUEL
IPC: C09B62/004
Filed: 1967-11-27
Abstract: 1,147,110. Anthraquinone dyestuffs. FARBENFABRIKEN BAYER A.G. 27 Nov., 1967 [30 Nov., 1966], No. 53799/67. Heading C4P. The invention comprises compounds of the formula where A is a sulpho-group-containing arylene, a sulpho-group-containing aralkylene or sulphato. alkylene radical and X is a reactive group which is linked to the amino group either directly or via a further bridge member. The compounds are prepared from compounds of the formula by converting the NH 2  group into a NHX group in a known manner.
Patent GB-1246736-A (GB)
Title: A process for making steel in induction crucible furnaces, and a furnace when used in the process
Inventor: PANTKE HEINZ-DIETER
IPC: F27B14/06
Filed: 1969-11-04
Abstract: 1,246,736. Making steel in an induction crucible. HUTTENWERK OBERHAUSEN A. G. Nov. 4, 1969 [Nov. 29, 1968], No. 54041/69. Heading C7D. A process for making steel in an induction crucible furnace having a cylindrical crucible surrounded by a cylindrical induction coil comprises maintaining the ratio of the induction coil input to the crucible contents at a value high enough to form a dome on the bath so elevated at the centre that the slag provided to absorb from the bath elements that are undesirable in the steel forms a toroidal vortex round it, which serves to drag below the slag surface charge materials introduced on to the dome. The preferred conditions are a specific power at 50 c/sec of at least 350 KW/tonne, and at other frequencies the quotient of the specific power input and the square root of the frequency is at least 49À5. The charge material may be low density material such as sponge iron in lump granular or powder form, the material being charged on the slag free dome of metal. The charge material may be added at a rate matching the power input to the coil at the time, so that the heat required to melt down the additions, form any fresh slag, and support the reactions, corresponds exactly to the heat being generated inductively in the bath. The carbon content of the bath may be regulated to less than 0À1% by weight. This may be achieved by oxidizing ore additions, by blowing with oxygen or by periodically adding a carburizing agent. A semi continuous method may be used wherein 40-50% of the contents are tapped in each cycle. Slag formers that promote de-phosphorization may be added with the sponge iron or after the tapping the first slag. Desulphurizing agents may also be added.
Patent GB-787394-A (GB)
Title: Method and apparatus for producing crystalline silicon
IPC: C01B33/02
Filed: 1955-01-07
Abstract: <PICT:0787394/III/1> A single crystal of silicon is obtained by melting and subsequently cooling silicon in a non-reactive atmosphere, while the silicon is supported in contact with substantially pure boron nitride.  Specimens of silicon 24 are supported on a slab or boat 19 of alumina, beryllia or zirconia, having a layer 20 of boron nitride, which boat 19 moves along inside a quartz tube 10 through which is passed an inactive gas such as argon or helium.  As the boat moves along it passes through a cylinder 16 of tantalum, molybdenum, tungsten, graphite, iridium, osmium, ruthenium or rhenium, which is heated by induction from a coil 15 around the quartz tube 10, to a temperature about 200 DEG  C. above the melting point of silicon (1426 DEG  C.).  The silicon may be prepared by reacting silicon tetrachloride with zinc vapour, which produces polycrystalline silicon which is powdered and pressed into the shape required and sintered.  Donor or acceptor metals may be added to the silicon powder before pressing, or the metals may be added to the silicon by exposure to the metal vapour in the melting zone of the tube.
Patent GB-1273828-A (GB)
Title: Electrical networks
Inventor: ROLLETT JOHN MORTIMER
IPC: H03H11/12
Filed: 1969-11-05
Abstract: 1,273,828. Active filters; amplifiers. POST OFFICE. 4 Nov., 1970 [5 Nov., 1969], No. 54235/69. Headings H3T and H3U. A Sallen and Key filter, Fig. 2, comprising an  amplifier 8 of gain k, resistors R1, R2 and capacitors C1, C2 is characterized by the inclusion of a third resistor R3 and by having values of the parameters chosen to satisfy the equation (1-k)+(m/M)=[(#)/1-#].[(1+m)/n] where m=<SP>R2</SP>/ R1 , n=<SP>C1</SP>/ C2 , M=<SP>R3</SP>/ R1 , #=a constant between 0 and 1. In a modification, Fig. 3 (not shown), the capacitor C2 is connected to earth via the low impedance output of a further amplifier (17) having its input connected to the filter input terminal via a series CR circuit (CC 3 , RR 4 ) and having its input shunted by a further resistor (RR 5 ). The values of these components satisfy the equation
Patent GB-1224196-A (GB)
Title: Suspension systems in motor vehicles
Inventor: ALDEN JOHN HAROLD
IPC: B60G11/08
Filed: 1968-11-15
Abstract: 1,224,196. Vehicle spring suspensions. VAUXHALL MOTORS Ltd. 2 Oct., 1969 [15 Nov., 1968], No. 54378/68. Heading B7D. A beam axle suspension comprises a pair of suspension arms 10, 12 pivoted at their front ends 16, 18 to the vehicle body, a leaf spring 40 extending transversely between the rear ends of the arms and to which the body is mounted by spaced mounts 44, 46 and an axle connected to the arms intermediate their ends. In the embodiment shown, the spring is attached to the arms by cross-shackles such as 42 which allow relative universal movement. In another embodiment (Fig. 4, not shown), these may be replaced by elastomeric blocks (82), or in a further embodiment (Figs. 9 and 11, not shown), by ball stud and socket connections. The suspension arms may extend obliquely to, or parallel to, the longitudinal axis of the vehicle. In the latter case, the rear ends of the arms may be sprayed outwardly, as at (80), to provide enhanced roll resistance of the spring. The connections of the axle to the arms may comprise elastomeric bushings allowing relative torsional movement between the axle and arms. The pivotal connections 16, 18 as well as the connections of the body to the spring may also comprise elastomeric members. In the secondmentioned embodiment oblique struts (94, 96) may be connected between the axle and the front of the respective suspension arms. Vibration dampers may be provided between the arms or the axle and the body. A Panhard rod (106) (Fig. 8, not shown) may be provided between the body and the suspension.
Patent GB-1114610-A (GB)
Title: Improvements in and relating to power plants including diesel engines using liquid and gaseous fuels
IPC: F02D19/10
Filed: 1965-12-31
Abstract: 1,114,610. Regulating LC. engines. SULZER BROS. Ltd. Dec.31, 1965 [Feb. 2, 1965], No.55410/65. Heading F1B. In a method of operating a diesel engine on liquid fuel and/or gas generated by the evaporation of liquefied gas 3 in a container 1 by the absorbtion of ambient heat, the gas is supplied at a rate which depends on the rate at which it is generated and the total fuel requirement at the desired output is made up with liquid fuel. One or more thermally insulated containers 1 e. g. in a ship, supply gas through pipe 5, heat exchanger 6 and regulator 11 to the inlet of a multi-stage centrifugal compressor 12. The gas pressure acts through line 17 on a controller 16 which actuates switches 15 to control electric motor 13 and also actuates the regulator element 11 through a servo-control (not described). Compressor 12 supplies gas through line 18 to the diesel engine inlet valves (not shown) which are operated by an engine-driven telemotor pump 36. A pipeline 21 communicates the gas delivery pressure through an adjustable pressure reducer 23 to a pressure sensitive capsule 24 which acts on the fuel delivery rod 28 of a fuel injection pump 30. A fulcrumed lever 34 is arranged to interconnect the delivery control rods 28 and 35 so that an increase of liquid fuel delivery causes a reduction in gaseous fuel delivery and vice versa. Lever 34 is joined to the output lever of a governor 44 whose setting lever 45 is connected to the engine operating lever 47. Excess pressure in container 1 is relieved to atmosphere through valve 7. Motor 13 may be arranged to be driven at a varying speed in accordance with the amount of gas generated or with the pressure in the delivery line. Regulator 22 may be replaced by an indirect servo system.
Patent GB-1377964-A (GB)
Title: Display device including a rigid substrate
IPC: H01K7/04
Filed: 1971-12-01
Abstract: 1377964 Matrix displays RCA CORPORATION 1 Dec 1971 [7 Dec 1970] 55714/71 Heading G5C [Also in Division H1] A device for selectively displaying numerals comprises an envelope enclosing an insulating substrate 70, the substrate having bores bearing conductive pins 28, 30, 30<SP>1</SP> supporting on one side incandescent filaments 33 and contacting at the other end conductive material 36 deposited in depressions 76, 76<SP>1</SP> in the substrate face, the depressions leading to a row of further bores 72, 72<SP>1</SP> adjacent one edge of the substrate, the further bores being in contact with terminal leads 22 extending out of the envelope. The pins are arranged in two groups, one of which is contacted by a single depression 76<SP>1</SP> around the edge of the substrate face and leading to a bore 72<SP>1</SP>, the pins of the other group being individually connected to bores 72 by depressions 76. The terminal leads are connected to the depressions either by having bent ends passing through the bores (as shown) or by being welded to pins passing through the bores.
Patent GB-1166519-A (GB)
Title: Heat Exchanger
Inventor: MENKUS MILTON
IPC: F28F3/08
Filed: 1967-12-07
Abstract: 1,166,519. Heat exchangers. M. MENKUS. 7 Dec., 1967 [31 Jan., 1967], No. 55718/67. Heading F4S. A heat exchange panel 10 consists of plates (not shown in the figure but indicated at 50, 52 in Figs. 3 and 4 and 350, 252 in Fig. 5) between which is disposed an arrangement of cells interconnected to provide juxtaposed, tortuous flow paths through the panel for fluids exchanging heat with one another through the cell walls. The cells shown are defined by a grid or lattice of interdigitated plastics or metal strips having cut-away portions providing ports 24, 34 which interconnect the cells of a flow path. The cells may be rectangular, square or rectangular, and a plurality of panels may be stacked so that each cell is bounded on all sides by other cells. The fluid flow paths of adjacent panels may be interconnected. The flow paths for each fluid may be connected to inlet and outlet headers (not shown) and the respective fluid streams may flow concurrently or countercurrently. The panel may form a structural part of a building (e.g. a wall or roof) where it may be used to exchange heat between incoming and outgoing air streams.
Patent GB-1204358-A (GB)
Title: Counting device comprising n magnetic flux counters
IPC: H03K21/12
Filed: 1967-12-08
Abstract: 1,204,358. Magnetic flux counters. NETHERLANDS POSTAL & TELECOMMUNICATION SERVICE, DIRECTOR GENERAL OF. 8 Dec., 1967 [13 Dec., 1966], No. 55952/67. Heading G4A. A magnetic flux counter is read out by applying a train of pulses simultaneously to said counter and to an auxiliary counter of the same type, the occurrence of carry signals from the two counters measuring off a burst of pulses equal to the number stored in the counter. The process may be repeated and the output fed to a meter.
Patent GB-1262695-A (GB)
Title: Improvements in or relating to internal combustion engines
Inventor: MUNGUET OSCAR FERRER
IPC: F02B75/04
Filed: 1969-11-14
Abstract: 1,262,695. Marine propulsion plant. O. F. MUNGUET. 14 Nov., 1969 [15 April, 1969], No. 55961/69. Headings B7A and B7V. [Also in Division F1] A ship 33 has an engine 35 (see Division F1) which during normal operation propels the ship via propeller shaft 37, but which can be supercharged to provide additional power to drive additional propellers 41, 42. The latter may be driven directly by the engine or, as shown, they may be driven by electric motors 39, 40 receiving electricity from a generator 38 driven by the engine. The ship is capable of running submerged with its engine 35 working by means of a "Schnorkel" device in the form of a hollow mast 36.
Patent GB-1148809-A (GB)
Title: Separation of ethylene copolymer elastomers from their solutions
Inventor: ANOLICK COLIN
IPC: C08F6/12
Filed: 1967-12-11
Abstract: 1,148,809. Separating ethylene copolymers from solutions. E. I. DU PONT DE NEMOURS & CO. 11 Dec., 1967 [15 Dec., 1966], No. 56133/67. Heading C3P. Sulphur-curable ethylene copolymer elastomers are separated from solutions in organic solvents by heating the solution to a temperature and under a pressure at which two immiscible liquid phases (including liquid-like phases) form, one of which is relatively rich in copolymer, separating the copolymer-rich phase by decantation, and evaporating the solvent therefrom. The solution may be polymerization reactor effluent, and comprise a solution of a copolymer of ethylene, propylene and a non- conjugated diene, e.g. 1, 4-hexadiene, dicyclopentadiene, 5-methylene-2-norbornene, 5-alkylene-2-norbornenes, 2-alkyl-2,5-norbornadienes and 1,5-cyclooctadiene, in pentane, hexane or heptane. Carbon black and/or processing oil may be added before decantation, or to the copolymer-rich phase after decantation. Examples describe the separation of ethylene/ propylene/1,4-hexadiene copolymers from hexane solutions, with the incorporation of carbon black and processing oil.
Patent GB-1200300-A (GB)
Title: Machine for use in assembing battery plate packs
Inventor: HARRIS JOHN DEREK
IPC: H01M10/14
Filed: 1966-12-15
Abstract: 1,200,300. Feeding sheets. JOSEPH LUCAS (INDUSTRIES) Ltd. 1 Dec., 1967 [15 Dec., 1966], No. 56174/66. Heading B8R. Components of battery plate packs, e.g. separators, are stacked on edge in a magazine 14 and urged forwards by friction by endless chains passing beneath the magazine, the front component being separated downwardly by a shoulder 29 on a slide 16 reciprocated under the control of a cam 52. The slide is connected alternately to suction and air pressure so that the end component is first held against the slide and then released from it to fall into a shoot 17. A conveyer carrying partly formed packs passes below the shoot and has projections which move a component out of the shoot on to a pack on the conveyer. For the feed of the battery plates which alternate with the separators in the packs, the suction and pressure devices are not used, ramps 48 guide the plates into the shoot, and an arm 18 is oscillated between two parts of the shoot, in synchronism with the slide 16, so as to control the descent of a plate in the shoot. Several feeding machines can be used in series along a conveyer, each machine delivering one separator or plate to each pack.
Patent GB-1269250-A (GB)
Title: Isothermal furnace
IPC: F28D15/02
Filed: 1969-11-17
Abstract: 1,269,250. Heating chambers. THOMSON CSF. 17 Nov., 1969 [21 Nov., 1968], No. 56231/69. Heading F4U. A chamber 1 is heated by electric elements 4 through the evaporation and condensation of a liquid 3 in an annular enclosure 2, means being provided to vary the volume of the enclosure which may be occupied by vapour. As illustrated, the volume varying means comprises a reservoir 8 of inert gas which is connected via valves 9 and 11 and a pressure gauge 10 with the bottom of the enclosure 2. The gas is chosen so that on admission to the enclosure it rises to the top of the enclosure to form a region which the vapour does not penetrate, thus avoiding heating of the top of the chamber 1. In a modification, Fig. 2 (not shown), the inert gas is admitted to the top of the enclosure. The heat transfer medium 3 may be lithium and the inert gas may be argon or neon.
Patent GB-1358888-A (GB)
Title: Fibrous reinforcing material impregnated with a polyester
IPC: G03F7/027
Filed: 1971-12-07
Abstract: 1358888 Laminates PROGIL 7 Dec 1971 [28 Dec 1970] 56699/71 Heading B5N [Also in Division C3] Laminates are made from a continuous glass fibre roving and a glass fabric impregnated with a photopolymerizable composition which comprises an unsaturated polyester resin, a vinyl or vinylidene monomer, benzoin or one of its ethers as photosensitizer, and, as stabilizer for the composition, a hydroxy carboxylic acid. The roving or fabric is wound round a shaft and subjected to ultra-violet radiation.
Patent GB-1207376-A (GB)
Title: Multisection casing and latch mechanism therefor
Inventor: AMMON BRUNO
IPC: A45C13/10
Filed: 1967-12-14
Abstract: 1,207,376. Latches. GENERAL ELECTRIC CO. 14 Dec., 1967 [6 Jan., 1967], No. 56932/ 67. Heading E2A. [Also in Division B8] A multisection casing has two side sections pivoting on a central section and overlapping at the upper edges, two latches each operated by a push button 30 on the central section and connected to a cross piece with bent up tabs 32, the tabs each engage in an opening 34 in a central section and an opening 35 in a side wall of a side section. To release the latch the push button is depressed against the action of a spring 39 which urges the tabs to latching position. The push button extends through an aperture in the central section and through a mounting pad 46 on the outer surface of the central section. The lower portion of the push button is cylindrical and engages in a hole in a bracket 41 secured to the central section. The spring 39 acts between the bracket and the cross piece of the tabs. In latching position the ends of the tabs are connected by a flange 50 on the side walls 24. To facilitate latching the end surfaces of the tabs and walls 24 are inclined.