baber/WOPTO huggingface dataset:
Patent GB-1473113-A (GB)
IPC: B60R21/02
Filed: 1974-08-23
Abstract: 1473113 Vehicular safety devices DR ING hcF PORSCHE AG 23 Aug 1974 [5 Sept 1973] 37091/74 Heading B7B [Also in Division A4] A motor vehicle includes a seat 4 which is movable on collision first in a direction b opposite to the direction of travel and then in the direction a, the movement being such that the seat initially undergoes rapid deceleration and then a constant deceleration. The seat is connected to an hydraulic piston-cylinder actuating mechanism 11, the cylinders 12, 13 of which are subjected to pressure to move the seat in response to a control apparatus 16. The control apparatus is responsive to signalling devices, e.g. transducers, 17, 18 and 20 which detect the impact force, seat deceleration and body deceleration respectively. In a further arrangement the seat actuating mechanism comprises an hydraulic piston-cylinder device 25 directly linked to an hydraulic shock absorber. An opening 29 in the piston 30 is normally closed by a frusto-conical plug 28, and on collision flow across the opening causes the seat to move first in direction d and then in direction c.
Patent GB-1000014-A (GB)
Title: Method of extracting vegetable ingredients
IPC: A61K36/00
Filed: 1962-10-02
Abstract: The vegetable structure of materials is destroyed with enzymes produced by genus Trichoderma before active ingredients are extracted with an organic solvent.  Exemplified is the extraction of chlorophyll, chlorophyllin and sodium copper chlorophyllin with butyl acetate.ALSO:The vegetable structure of materials is destroyed with enzymes produced by genus Trichoderma before active ingredients are extracted with an organic solvent.  Exemplified is the extraction of carotin with petroleum ether and galanthamine (isolated as its hydrobrmoide) with ethyl acetate and acetone.ALSO:The vegetable structure of materials is destroyed with enzymes produced by genus Trichoderma before active ingredients are extracted with an organic solvent.
Patent GB-663818-A (GB)
Title: Improvements in oscillograph apparatus
IPC: F02P17/02
Filed: 1946-12-18
Abstract: 663,818. Cathoderay oscillographs. BRITISH THOMSON-HOUSTON' CO., Ltd., WELCH, D. F., and GRIEVE, A. June 3, 1948 [Dec. 18, 1946], No. 37289/46. Class 37. [Also in Group XL (c)] In a time base generator operated by pulses of variable recurrence, a first saw-tooth generator is triggered by the pulses and has its rate of change of voltage varied just to complete a cycle during the recurrence period, a second generator being triggered from the first so that the commencement of the sweep occurs at a selected point in the cycle of the first generator. A negative going triggering pulse applied to the grid of valve V1 causes the flip-flop V1, V2 to reverse its state to generate a negative-going pulse at the anode of valve V2 which cuts off the valve V3 at the suppressor grid. Valves V3, V4 are connected as a Miller integrator and a paraphase valve respectively, the pulse causing the sweep to terminate and the flyback to occur. When the flip-flop restores, valve V3 is rendered conducting to initiate a linear run-down at the anode and a corresponding rise in the anode potential of valve V4, the saw-tooth potentials being fed over switch S11 to the deflection plates of the Cathode-ray tube. During the fly back, the fall in anode potential of valve V4 causes the diode V6 to conduct when its cathode potential falls below that of the negative line. The diode ceases to conduct at a point in the sweep so that valve V5 discharges capacitor 15 over part of the cycle, the capacitor being partly recharged over resistor 19. A steady state is reached so that the potential to which the grid resistor 12 of Miller valve V3 is returned is varied in accordance with the amplitude of the saw-tooth oscillations to maintain them substantially constant. The anode of valve V3 is connected directly to the grid of valve V7 of cathode coupled pair V7, V8 so that when the anode potentials fall during the sweep a positive pulse is generated at the anode of valve V7 which is differentiated over capacitor 23 and resistor 24 and squared in biased valve V9 to produce a negative pulse which is applied to valve V10. Valves V10 and V11 are connected similarly to valves V3, V4, the grid resistor 26 being returned to capacitor 15 to stabilize the saw-tooth amplitude. It is stated that a fast time base results when the negative pulse is applied to valve V10. The feed-back capacitor may be selected by switch S10 to give a desired sweep expansion, the switches S10, S11 being ganged so that the deflection plates are fed from valves V3, V4 or V10, V11. A black-out wave is derived from the sawtooth output over capacitor 31 and resistor 32.
Patent GB-817094-A (GB)
Title: Improvements in and relating to electric signal translating circuits employing semi-conductor devices
Inventor: VAUGHAN ALFRED JOHN
IPC: H03K17/60
Filed: 1954-12-24
Abstract: 817,094. Transistor switching and pulse modulation circuits. ENGLISH ELECTRIC CO. Ltd. Dec. 23, 1955 [Dec. 24, 1954], No. 37391/54. Classes 40 (5) and 40 (6). In a switching or gating circuit, the emittercollector path of a junction transistor is connected in a controlled circuit, potentials being applied to the base so that one potential has a value such that the transistor operates in the bottomed condition. In this condition the base current is equal to or greater than that corresponding to the greatest curvature of the base current/emitter-collector potential curve. In a series gate, Fig. 7, when the potential to which the base resistor Rb is lowered sufficiently there is a negligible potential drop between the emitter and collector and the potential appearing across the load R L  is that of the source Eg diminished by the potential drop across the internal impedance Rg. In the cut-off condition the potential appearing across the load is only that due to leakage current. A shunt gate, Fig. 8, is arranged so that when the transistor is off the source potential appears across the load R L  diminished by the drop across the internal impedance Rg. When the transistor is on, there is a virtual short-circuit across the load. Pulse amplitude modulation circuit.-By applying a pulse train S 1 , Fig. 9b, to the resistor Rb in Fig. 7 and a modulating signal as the source Eg, an output wave e o  appears across the load R L . In a similar manner by employing a pulse train S 1 , Fig. 10b, applied to the base of the transistor in Fig. 8, a wave C o  may be derived from the load R L .
Patent GB-997760-A (GB)
Title: Improvements in or relating to the lubrication of internal combustion engines
Inventor: GRAY HENRY VICTOR
IPC: F01M11/02
Filed: 1960-11-02
Abstract: 997,760. Lubricating. BIRMINGHAM SMALL ARMS CO. Ltd. Feb. 2, 1962 [Nov. 2, 1960], No. 37599/60. Heading F2A. In means to lubricate the crank-shaft 1 of an internal-combustion engine, wherein a recess or well 23 in a bearing part of the shaft 1 on a crank-pin thereof is disposed so as to receive and retain oil draining from the bearing surface and/or a supply passage 17 when the engine is stopped after running, oil retained by the recess 23 being discharged to the bearing by centrifugal action during the first few shaft revolutions when the engine is started, the recess or well 23 forms a blind bore constituting the end of an inclined passage 17 through a shaft web 19. The upper end of a shaft 1 when vertical receives, through a passage 9 in a mounting casing 3 therefor, oil from a pump, fed to a crank-pin through grooves 13, 15 in an upper bearing portion 11 leading to the passage 17, which opens in the centre of the outermost part of the pin, the blind bore or recess 23 being inclined downwards towards the shaft web 25.
Patent GB-875173-A (GB)
Title: Improved apparatus for sorting paper sheets into compartments
Inventor: THOMPSON STANLEY HOWARD ADCOCK
IPC: B07C3/06
Filed: 1958-11-22
Abstract: 875,173. Card sorting apparatus. PARNALL & SONS Ltd. Nov. 23, 1959 [Nov. 22, 1958], No. 37661/58. Class 106 (1). Card sorting apparatus comprises a plurality of pairs of driving wheels 6c, 6d defining therebetween a main channel X and a plurality of branch channels Y, and a solenoid-operated deflector located at the junction of each branch channel with the main channel and at the entrance to each of a plurality of sorting compartments 7c, 7d associated with each branch channel. A reading head 13 senses information carried by each card, for example, in the form of punched holes, and directs the cards to a desired compartment by operating a selected combination of deflectors. The deflectors described have arcuate tongues which may be rocked into and out of the path of a card. The wheels have resilient tyres, and a wire contacts each card as it enters the selected compartment to remove any static electricity which may have accumulated on the card.
Patent GB-917865-A (GB)
Title: Improvements in or relating to pneumatic tyres
Inventor: MASHETER LAWRENCE EDWARD
IPC: B60C1/00
Filed: 1958-11-22
Abstract: 917,865. Pneumatic tyres. DUNLOP RUBBER CO. Ltd. Nov. 12, 1959 [Nov. 22, 1958], No. 37675/58. Class 144 (2). To provide better ride characteristics in a pneumatic tyre having a tread rigidly reinforced either by two or more cross-laid steel cord plies or four or more cross-laid textile cord plies, each having a cord angle of less than 25 degrees to the mid-circumferential plane, the tread is made from rubber which, in its vulcanized form, has a hysteresis loss (the energy loss per c.c. of rubber occurring when a solid block of rubber is compressed in one direction, without transverse restraint, to 0.9 of its original dimension and then allowed to recover all in <SP>1</SP>/ 50  sec.) greater than 0.04 joules per c.c. at a temperature of 25 C. and preferably less than 0.03 joules per c.c. at 70 C. The tyre tread rubber may comprise natural rubber, butyl rubber, or a butadiene-styrene copolymer (GR-S) having a styrene content of between 35 and 60%. Alternatively, other copolymers of a conjugated diene, such as butadiene or isoprene, with a mono-ene such as a lower alkylacrylate, a cyano or haloalkyl acrylate or methacrylate, a lower N-alkyl or N,N-dialkyl acrylamide or methacrylamide, vinyl pyridine, an alkyl isopropenyl ketone or alkyl vinyl ketone. The tyre carcase may comprise plies of radially disposed textile cords.
Patent GB-815505-A (GB)
Title: Improvements in or relating to gear pumps
Inventor: BOOTH DOUGLAS GERHARD
IPC: F04C2/08
Filed: 1954-04-12
Abstract: 815,505. Gear pumps. PLESSEY CO. Ltd. May 9, 1955 [April 12, 1954], No. 37729/57. Divided out of 815,501. Drawings to Specification. Class 110 (2). The subject-matter of the present case is substantially the same as that of Specification 815,501 but the claims differ. Specifications 815,503 and 815,504 also are referred to.
Patent GB-905032-A (GB)
Title: Improvements in and relating to sheet material coated with pressure-sensitive adhesive
Inventor: DOW JAMES
IPC: C09J7/50
Filed: 1958-11-25
Abstract: A synthetic resin composition comprises a methyl methacrylate-natural rubber graft polymer and poly-b -pinene resin.  The graft polymer may contain 30% polymerized methyl methacrylate.  The composition may also contain the methyl ester of hydrogenated abietic acid, titanium dioxide and an anti-oxidant.
Patent GB-843005-A (GB)
Title: Improvements in error correction for tape punches
IPC: B41B25/00
Filed: 1956-12-11
Abstract: 843,005. Strip-perforating machines. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 11, 1956 [Dec. 27, 1955], No. 37841/56. Class 100(3) A device for automatically obliterating a message containing an error from a tape comprises means for identifying a message from the point of beginning to the point of error, means operable to feed tape column by column in either direction, and means operable when an error has been made in the message to reverse feed the tape until the point of beginning of the message is reached and then feed the tape forwards to the point of error, obliterating all message data between said points during the latter movement. The tape 2, Fig. 3 is fed past five aligned punch pins 4, each operated by a drive arm 8 during each rotation of a shaft 10, if the tail 12 of the arm 8 is engaged by an interposer 14 under the control of a magnet actuated by a typewriter. The shaft 10 rotates when a clutch is closed by a clutch magnet, operated by a cam on the shaft 10. The tape is normally fed forwardly stepwise by a cam 24, arm 22, ratchet 34, and pin wheel 38. On energizing two magnets, the feed is disengaged, and the'tape is fed backwards by a cam 28, arm 26, second ratchet and pin wheel 38. An extra punch pin is provided, aligned with the edge of the tape and displaced half a column from the pins 4 to provide a notch in the edge of the tape, and operated by its own interposer 14 under control of a further magnet. A further pin 62 is provided behind the aforementioned pins to sense the presence of a notch in the edge of the tape, operated by a further interposer and magnet, the arm 8 for the pin 62 serving however not to operate the pin positively, but to release it for operation by a spring 64. Sensing of a notch by the pin 62 closes contacts 72. In normal operation, a notch 58, Fig. 6, is made in the tape by closing a manual switch to energize the magnet for said extra pin. Fig. 6 shows the message on the tape 2 instead of the code perforations which are actually there. The operator depresses an "error" key on noticing that the figure "9" has been made in error. A system of electrical relays and magnets is provided, the function of which is to produce the following sequence of operations. The magnet for said extra pin is energized and a notch 60 is made immediately following the error. The reverse feed magnets are energized and the tape is fed backwards until the pin 62 senses the notch 58, the effect of which is to return to forward feed, during which a perforation is made by all the pins 4 in every column to erase the message, until the sensing of notch 60 by the pin 62 returns the machine to normal operation. The timing of the electrical operations is controlled by three cams on the shaft 10. Specifications 820,710 and 840,894 are referred to.
Patent GB-932510-A (GB)
Title: Function generator
IPC: G06G7/28
Filed: 1961-10-23
Abstract: 932,510. Function generators. BENDIX CORPORATION. Oct. 23, 1961 [Oct. 26, 1960], No. 37904/61. Class 37. [Also in Group XL (c)] Relates to a circuit for producing from a variable D.C. electric input signal Ei an output signal Ii as a prescribed linear function of the input signal, the said linear function being a straight segment of prescribed slope, initial point and terminal point, which circuit comprises a resistance 28 for determining the slope of the segment, a pair of diodes 23, 24 connected in series with reverse polarities between ground and the output of the circuit, with one of them 23 being poled so as normally to permit the transmission of the input signal through it, a first source of back-biasing voltage Eb applied to the first diode through the second diode to permit transmission of the input signal after the signal has exceeded a first value, thereby to determine the initial point of the segment, and a second source of back-biasing voltage EL applied to the second diode at the point common to the two diodes by way of a current transmitting device having a low input impedance and a high output impedance, e.g. a transistor 21, to limit the transmission if the input signal through the second diode to a constant amount after the input signal has exceeded a second value, thereby to determine the current value of the terminal point of the segment. The circuit contains a grounded base NPN transistor, emitter driven from voltage source EL through resistor 22. The input voltage Ei is applied at terminals 13, but an output current Ii will not be immediately obtained at terminals 14 because diode 24 is held reversed biased by the potential Eb applied at terminals 12. Once Ei has increased sufficiently to turn on diode 24, the output current Ii increases linearly with Ei with a slope partly determined by resistor 28, until the transistor 21 is passing the maximum current allowed by resistor 22. By combining a number of such circuits as shown in Fig. 5, each giving functions with different operating points and slopes, functions of the type shown in Fig. 6 may be produced. A common load 30 equivalent to resistor 27 of Fig. 1 is used for all the circuits, and is split into two sections 35, 36 such that currents from some circuits (e.g. 20A and 20B) will oppose those from the remaining ones. This allows both positive and negative going slopes to be produced in the required output function. Specification 932,509 is referred to.
Patent GB-323630-A (GB)
Title: Improvements in or relating to the manufacture of bricks and the like
IPC: C04B41/50
Filed: 1928-12-22
Abstract: 323,630. Cafferata & Co., Ltd., and Cafferata., B. J. Dec. 22, 1928. Ornamenting bricks.-Bricks made from clay or marl are coloured by immersing them in a solution of a metallic salt or salts after firing and then re-firing them to convert the absorbed salts into colouring metallic oxides. As an alternative the brick may undergo a double immersion, first in the solution of the metallic salt and afterwards in a second solution which will convert the metallic salt into a hydroxide, silicate, or borate. This second immersion is stated to deepen the colour obtained. As an example, the brick may be immersed for 15 seconds in a solution of ferrous sulphate at a temperature of 80‹, and then either burnt direct or immersed in borax, ammonia gas, or ammonium carbonate before burning. Many other examples are given of solutions which may be used.
Patent GB-304762-A (GB)
Title: Improvements in or relating to absorption refrigerating machines
IPC: F25B15/10
Filed: 1928-12-28
Abstract: 304,762. Stetnens - - Schuckertwerke Akt.-Ges. Jan. 26, 1928, [Convention date]. Refrigerating, absorption systems for.-In continuous-cycle systems wherein cold is produced by evolution of refrigerant gas from a cold rich solution into an inert gas, the poor gas mixture passing back from the absorber to the cold generator is cooled, to condense any solvent vapour therein by heat exchange with the rich solution on its way from the reabsorber to the cold generator. By this means condensation of solution vapour in the cold generator is avoided. In the system shown, comprisirg a heated generator 9, gas separator 12, reabsorber 17, cold generator 1, and absorber 2, an injector nozzle 19 fed with inducing gas through a pipe 18 circulates the rich and poor gas mixtures through the pipes 3, 4 and 25, 28 respectively between the cold generator and absorber. The pipe 25, 28 is formed into a chamber 26 fitted with trays 27 and surrounded by a jacket 29 traversed by rich solution on its way from the reabsorber through a pipe 20 to the cold generator. The poor gas mixture may, as shown, pass downwards in counterflow to the rising liquor. A pipe 30 conveys condensate from the chamber 26 and surplus liquor from the cold generator back to the absorber, or it may be, to the reabsorber. The poor cold solution flowing back to the reabsorber may exchange heat with the rich liquor. A gas vent 24 is provided from the reabsorber circuit. The gas circulation may be effected by heating and cooling in ascending and descending portions of the gas conduit. In a modification, the rich solution on its way to the cold generator passes through a coil located in an upward extension of the absorber through which the poor gas mixture passes back to the cold generator.
Patent GB-1376889-A (GB)
Title: Telecommunications networks
IPC: H04Q11/04
Filed: 1971-11-10
Abstract: 1376889 Automatic exchange equipment POST OFFICE 10 Nov 1971 [10 Aug 1970] 38513/70 Heading H4K In a time division multiplex switching network on existing call between two fixed points in the network is relocated on a predetermined preferred arrangement of links when these become available. In the embodiment shown, a computer controlled TDM/PCM exchange employs zero 6, fixed delay 7 and variable delay junctors 8 to provide the correct delay for each call across the space switching network. In operation a call is shifted from an expansive variable delay junctor to a fixed or zero delay junctor as appropriate whenever one is free as instructed by the computer programme. Another embodiment, Fig. 2 (not shown), has a plurality of TDM/PCM exchanges which can be interconnected directly or through a tandem exchange. The calls preferably are routed on the direct links and are re-routed accordingly to reduce the use made of the tandem exchange. Control data may be carried on the highways or special data links used to interconnect the computers. The network may be used for data or video signals.
Patent GB-1017366-A (GB)
Title: Double pole time switch means
Inventor: CONDON EDWARD FRANCIS
IPC: G04C23/10
Filed: 1964-09-22
Abstract: 1,017,366. Time switches. INTERNATIONAL REGISTER CO. Sept. 22, 1964, No. 38557/64. Heading H2B. A double-pole time switch comprises a synchronous motor driving a 24-hour dial 14, Fig. 1 (not shown), with coaxial on and off arms 23 and 22 adjustable relative to the dial but normally engaging serrations 27 in the edge thereof to be rotated thereby. Moving spring blade contacts are coupled to a lever by respective over-centre C-springs and pins on a spring-loaded plate slidable on the lever lie in the path of lugs on the on and off arms such that the lever is rocked to or fro respectively by the passage of the lugs. A lateral extension of the lever provides for manual operation of the switch. The final gearwheel driving the time dial is of insulating material in view of its proximity to the contacts.
Patent GB-848914-A (GB)
Title: Improvements in or relating to the manufacture of steroids
IPC: C12P33/00
Filed: 1956-12-21
Abstract: \se4-pregnene-11a -, 17a -, 21-triol-3, 20-dione and \se1,4-pregnadiene-11a , 17a , 21-triol-3, 20-dione are prepared by contacting the corresponding compound unsubstituted at the 11-position, or a 21-lower aliphatic carboxylic acid ester thereof, with the oxygenating activity of a strain of the micro-organisms Delacroixia coronata.  The micro-organisms may be grown in a nutrient medium until mycelium growth is obtained and the steroid reactant may then be contacted with the mycelium.  The process may be carried out under submerged aerobic conditions at a temperature between 25 DEG and 28 DEG  C. for from 5 to 20 hours. Detailed examples are given.
Patent GB-814081-A (GB)
Title: Improvements in or relating to line scanning systems
IPC: H04M15/08
Filed: 1956-12-21
Abstract: 814,081. Automatic exchange systems. WESTERN ELECTRIC CO. Inc. Dec. 21, 1956 [Dec. 28, 1955], No. 39018/56. Drawings to Specification. Class 40 (4). In a line-scanning arrangement the apparatus for receiving indications of line condition is prevented from receiving such indications for a random time interval after each start of the scanner, in order to avoid preferential treatment of lines situated early in the scanning cycle. As described, a satellite system of the type described in Specification. 814,082 is modified by the addition of a second pulse-generator, which is not synchronized with the first and has an interval between pulses slightly shorter than the length of a scanning cycle. Following the establishment of a connection and the subsequent resumption of scanning, service request pulses are prevented from reaching the receiver at the exchange until a gate has been opened by the next pulse from the second generator. Specification 753,014, [Group XL (c)], also is referred to.