baber/WOPTO huggingface dataset:
Patent GB-954548-A (GB)
Title: Improvements relating to room heaters
IPC: F24H3/06
Filed: 1960-04-27
Abstract: 954,548. Air heating stoves. N. LAING. April 27, 1960 [April 27, 1959], No. 47533/63. Divided out of 954,546. Heading F4S. A room heater comprises an air passageway 5 surrounding a heat exchange surface 2 and having a transverse cross-section which has its dimension parallel to the heat exchange surface 2 greater than the dimension at right-angles thereto, and a cross-flow blower 8 extending over the longer dimension of the passageway. The cross-flow blower comprises a cylindrical bladed rotor and guides 9, 10 inducing a flow of air which passes twice through the rotating blades of the rotor. The heat exchange surface 2 is a corrugated inner housing enclosing a burner 1 communicating with a flue 3 and fed with air by a pipe 21 from a short end portion 20 of the blower separated from the remainder of the blower by a disc 18. The outer wall of the air passageway 5 is an outer housing 4. The air passageway terminates in a flat nozzle 13 directing the air horizontally and associated with a mixing nozzle 16 which may be pivoted or displaced to change the amount of room air sucked into the air leaving the nozzle 13. The blower draws in air through ports 26a at the side of the base of the heater and through a filter 11. Fresh air is conveyed from outside the house through a pipe to an opening 26b in the outer housing 4 regulated by a flap 27. The blower is driven by a motor 17. In another embodiment, Figs. 3, 4 (not shown) the air passageway is formed between two vertical coaxial cylindrical housings, a burner is disposed within the inner housing, a cross-flow blower is mounted with its bladed rotor vertical on one side of the outer housing and a vertical nozzle is formed on the opposite side of the outer housing. In still another embodiment, Fig. 5 (not shown), the cross-flow blower and the outlet nozzle are both mounted on the front of the heater and the air passageway extends round the back of the heater.
Patent GB-479310-A (GB)
Abstract: 479,310. Seismic-surveying apparatus. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Oct. 6, 1936, No. 27155. Convention date, Nov. 6, 1935. [Class 118 (ii)] In a system of seismic surveying the sound is received on a number of detectors connected to galvanometers through lines having different sound lags, and the indications of all i;he galvanometers are recorded simultaneously. If the sound lags are such that the galvanometers are deflected together the angle of a reflecting surface can be determined. In the embodiment shown in Fig. 1, the outputs of the detectors 11-16 are fed through wavefilters 21, compensating lag units 22 and amplifiers 23 to a multistring galvanometer or oscillograph 24 and a recording camera 25. The time lag units are adjusted until the impulses reach the galvanometer together and from the adjustment the angle alpha of the reflecting surface can be calculated. Instead of adjusting the lag units, the outputs from each of the various detectors can be connected to all the galvanometers through a number of lag units having different values and such an arrangement is shown in Fig. 3. The detectors and galvanometers are connected through lag lines as indicated in the following table: Galvanometer No. of lag units in the circuit No. from detector. The resistance coupling units R are the standard T-connection or junction type. With this arrangement the slope alpha of a surface can be determined by using a single detonation. For example if it is observed that the maximum amplitude is recorded on the summation trace of G4, the detectors are 100ft. apart, the disturbance travels at 6000ft. /sec. and the time lag units have a lag of À00145 seconds. The lag between detectors is À00435 so that sin alpha = À00435(6000/100) =À261 and alpha = 15‹. A suitable design of lag unit is described in the Specification.
Patent GB-1022056-A (GB)
Title: Riveting
Inventor: HALL ALAN FRANK
IPC: F04D29/28
Filed: 1963-12-04
Abstract: 1,022,056. Riveted joints. IMPERIAL CHEMICAL INDUSTRIES Ltd. Nov. 24, 1964 [Dec. 4, 1963], No. 47941/63. Heading B3U. A method of riveting comprises coating a metal rivet and/or coating the interior of a hole which is to receive the rivet, with a quantity of a viscous liquid curable resin in excess of that required to fill the space between the rivet and the interior surface of its hole, mating the rivet with the hole, closing the rivet and thereafter curing the resin. The resin is preferably one which does not change its volume by more than 0À2% on curing, and is stable at temperatures up to 300 C. for at least a few minutes. Suitable resins are available in the phenol formaldehyde, polyester and epoxy resin classes. The method is described with reference to the assembly of a blade of a radial flow impeller wheel to its shrouds.
Patent GB-1373787-A (GB)
Title: Improvements realting to the control of motor vehicle change-speed gearing
IPC: F16H61/02
Filed: 1971-10-15
Abstract: 1373787 Pulse generating circuits ROBERT BOSCH GmbH 15 Oct 1971 [16 Oct 1970] 48008/71 Heading H3T [Also in Divisions F2 and G3] A motor vehicle gear changing apparatus comprises a function generator (14, Fig. 2, not shown) as shown in Fig. 6. Voltage increase and decrease are controlled respectively by the charge and discharge time of a capacitor 73 across the positive feed Ub and output terminal 86. When an increase signal from the shift circuit appears at El, the capacitor 73 charges through a field effect transistor 74, resistor 75 and switching transistor 76, triggered by the signal E1, and ground line 53. A decrease shift signal at E2 discharges the capacitor 73 through a triggered switch transistor 80, field effect transistor 79 and resistor 78. Charge and discharge are at constant current and hence would produce linear voltage change. To obtain a non- linear, and if desired, stepped voltage change at output 86, a Zener diode 84 and variable resistor 85 are arranged across a computing amplifier 83, which also decouples the load from the capacitor.
Patent GB-1072048-A (GB)
Title: Refrigeration systems
Inventor: ANDREWS THOMAS DESMOND HUDSON
IPC: B60H1/32
Filed: 1963-12-07
Abstract: 1,072,048. Refrigerating. DOWTY TECHNICAL DEVELOPMENTS Ltd. Nov. 26, 1964 [Dec. 7, 1963], No. 48409/63. Heading F4H. [Also in Division F2] The centrifugal compressor 15 of a refrigeration system is driven by a turbine 20 which is powered by the exhaust from an engine, e.g. a vehicle, i.e. engine or a steam turbine. The refrigerant, preferably dichlorofluoromethane, is one in which the sonic velocity is greater than the maximum compressor rotor tip speed occurring in use of the system. The system is located on a vehicle and comprises an evaporator 11 located in a duct 12 through which air is forced by a fan 13 to the vehicle interior, a condenser 17, a combined receiver/drier/sight glass 16 and a valved by-pass line 27 between the compressor suction and discharge sides, the turbine being powered by the exhaust from the vehicle engine. Multi-stage compressor and turbine units may be employed and the turbine may also drive another compressor used for super-charging the engine. As illustrated in Fig. 2 (not shown) part of the shaft (19) connecting the compressor and turbine impellers is formed as a helical screw (38) for pumping lubricant from an annular chamber (40) surrounding the shaft to a bearing (36) and thence to an outlet (41). A similar arrangement is provided for lubricating a second bearing (not shown) at the compressor end of the shaft. Shaft seals (see Division F2) are described.
Patent GB-1199046-A (GB)
Title: Improvements in Manganiding
IPC: C25D3/66
Filed: 1967-10-26
Abstract: 1,199,046. Electrolytically manganiding metals. GENERAL ELECTRIC CO. Oct.26, 1967 [Nov. 10, 1966], No.48766/67. Heading C7B. A method of forming a manganide coating on a metal composition, the composition having a melting point greater than 700 C., at least 50 mole percent of said metal composition being at least one of the metals selected from the class consisting of metals whose atomic numbers are 23, 24, 26 to 29, 41 to 47 and 73 to 79, which method comprises (1) forming an electric cell containing said metal composition as the cathode, joined through an external electrical circuit to manganese serving as anode and a fused salt electrolyte consisting of (a) one or more of the alkali metal fluorides, or a mixture of one or more of the alkali metal fluorides with one or more of the fluorides of calcium, strontium and barium, and (b) from 0À01-5 mole percent of manganese fluoride, said electrolyte being maintained at a temperature of at least 700 C. but below the melting point of said metal composition in the substantial absence of oxygen and (when said metal composition includes a metal of atomic number 23, 24, 41, 42, 73 or 74) in the absence of carbon, and (2) controlling the current flowing in said electric cell so that the current density of the cathode is in the range of from 0À01 to 10 amperes/dm<SP>2</SP> during the formation of the manganide coating. The term "manganide" designates any solid solution or alloy or intermetallic compound of Mn and the base metal. The cell generates electric current. The deposition rate of the Mn may be decreased by inserting some resistance inthe circuit or may be increased by impressing a voltage, e.g. to obtain constant current densities during the reaction. Specified fluorides that may be used are those of Li, Na, K, Rb and Cs, e.g. a eutectic mixture of NaF and LiF or of KF and Lif. The process may be carried out under vacuum or an inert atmosphere, e.g. of N 2 , forming gas (90% N 2 , 10%H 2 ), Ar, He, Ne, Kr or Xe. The electrolyte may be purified, e.g. from carbon, by an initial electrolysis. The anode may comprise a Mn rod or strip or be in the form of Mn chips in a porous Fe or (Registered Trade Mark) "Monel" basket. Alternatively, the anode may be of Mn-Cu alloy containing over 50 mole percent of Mn. The cathode may comprise the combination of a Cu wire touching a W strip. During manganiding using such a cathode and an external circuit to a Mn anode, the Cu and W become welded with Mn and Cu flowing over the W surface.
Patent GB-1375272-A (GB)
IPC: G01N25/00
Filed: 1972-10-24
Abstract: 1375272 Activation analysis; measuring thermal reaction electrically UNIVERSITE DE SHERBROOKE 24 Oct 1972 [29 Dec 1971] 48936/72 Headings G1A and GIN A detection system for measuring the extent of a thermal reaction in an observation cell 10 comprises a fluid-flow system including two branches 20, 22 with inlets 24, 26 and outlets 28, 30 respectively which branches exchange heat with the observation cell 10 and a reference cell 12 respectively, the branches being coupled by means 34 to a common conduit 34 which leads via pump 36 to a fluid chopping device 38 which switches the flow alternately between the inlets 24, 26 by means of an actuator 52 of which the frequency of operation is synchronized with that of demodulator 48 receiving from a temperature sensor 42 (thermistor or thermocouple) and narrow band-pass frequency amplifier 46 an electrical signal indicative alternately of the temperature of the fluid from branches 20, 22 which signal is displayed at 50 by an X-Y chart recorder. The temperature of the fluid input to the two branches is regulated by thermostatic means 40. It is stated that an alternative embodiment for monitoring a physical or chemical reaction involving a change in radio-activity utilizes, in the fluid-flow circuit, a gas containing dispersed atomic or molecular particles of large absorption cross-section for the radiation evolved and for the sensor a Geiger counter.
Patent GB-1443949-A (GB)
Title: Thermal barrier systems
IPC: F16L59/12
Filed: 1972-10-24
Abstract: 1443949 Thermal insulation NUCLEAR POWER GROUP Ltd 9 Aug 1973 [24 Oct 1972] 48958/72 Heading F2X [Also in Division G6] Fixing means attachable to a heat insulated structure and a relatively movable heat insulant containment shell member spaced from the insulated structure comprises a hollow metal stud having two or more helical channels through its longitudinal side walls such that it will expand or contract to accommodate axial thermal stresses set up by temperature differances between the structure and the shell member. As shown, a metal plate 10 forming part of a thermal barrier for the containment of the primary coolant gas in a nuclear reactor is attached to the inner wall of a metal liner 11 in a concrete pressure vessel (not shown) by means of a metal stud 12. The stud 12 has an end portion 12a, a through bore 12d and a hollow body portion 12b opening out to a mouth portion 12c. The body portion 12b contains three parallel, helical slots 13. The stud 12 is fixed at end 12a by means of a stud 14, welded to liner 11  which projects through the bore 12d and is secured by a nut 15. The mouth 12c of stud 12 projects through a hole in plate 10 and is surrounded by a collar 16 which also passes through plate 11 and has a conical bore 16a. In place of the gas between the plate 10 and the liner 11, a solid insulation material, e.g. mineral wool or ceramic fibre may be used. The plate 10 is one of a plurality of such plates arranged over the whole surface of the liner 11 and either overlapping or being joined by flexible margin portions.
Patent GB-1014156-A (GB)
Title: Organosilicon compounds
IPC: C07F7/08
Filed: 1963-12-11
Abstract: The invention comprises fluoroalkyl silicon compounds which are (1) chlorosilanes of the formula ClSi(R)2CH2CH2Si(R)2Cl, (2) cyclic silethylene siloxanes <FORM:1014156/C3/1> and (3) siloxanes containing units of the formula -Si(R)2CH2CH2Si(R)2O-, wherein i each case, R is a perfluoroalkethyl radical. Compounds (1) are prepared either (A) by reacting Cl3SiCH2CH2SiCl3 and a Grignard reagent, (B) by reacting R2Si(Cl)CH=CH2 and HSi(Cl)R2 in the presence of platinum, a platinum salt or an organic peroxide, or (C) by reacting two moles of HSi(Cl)R2 and 1 mole of acetylene.  Cyclic siloxanes (2) are prepared by thermally cracking the hydrolysis product of chlorosilane (1) at 200-300 DEG  C. in the presence of an alkali-metal hydroxide, and distilling of the cyclic compound. The siloxanes may be homopolymers, copolymers of two or more silethylene siloxanes, or copolymers containing other conventional siloxane units.  The siloxanes may be prepared by the action of catalysts (e.g. acids, alkalis, silanolates) on cyclic silethylene siloxanes (20). Copolymers may be prepared by reacting the hydroxyl-end-blocked linear polymers obtained by the hydrolysis of chlorosilane (1) with other siloxanes.  The examples describe the preparation of (1) 1,1,3,3 - tetrakis - (3,3,3 - trifluoropropyl)-1,3-disila-2 -oxacyclopentane which was copolymerized in (2) with 1,3,5-trivinyltrimethylcyclotrisiloxane, in (3) with dimethylsiloxane cyclic tetramer, and in (8a) with cyclo-hexylmethyl siloxane cyclic tetramer, benzylchlorophenylsiloxane cyclic trimer and methyl ethy siloxane cyclic tetramer; (4) <FORM:1014156/C3/2> which was hydrolysed in (5) to a siloxane polymer; (6) <FORM:1014156/C3/3> which was copolymerized in (9b) with SiCl4, (CH3)2Si(Cl)(C6H5) and (CH3)2SiCl2; (7) <FORM:1014156/C3/4> (8a) a copolymer prepared from a monophenyl siloxane polymer, <FORM:1014156/C3/5> and hexamethyldisiloxane.  Uses.-Dampening, potting, gaskets, moulding, laminated resins and coatings.
Patent GB-1484705-A (GB)
Title: Keyswitch state detectors
IPC: G06F3/02
Filed: 1974-11-12
Abstract: 1484705 Keyboards TELETYPE CORP 12 Nov 1974 [29 Nov 1973] 48984/74 Heading G4H Apparatus for detecting the state of a keyswitch comprises gating means responsive to input and output of first delay means and feeding second delay means, there being means for stepping data through the two delay means in synchronism. The states of keyboard switches are scanned and time-division-multiplexed through an amplifier and shaping flip-flop then de-multiplexed to filters (one per switch) feeding an encoder. A clock drives a counter which controls the multiplexer (scanner) and de-multiplexer. The count is also decoded to enable the filters in turn, each as its output of the de-multiplexer is reached. Fig. 2 shows one of the filters, having three shift-register stages 50, 52, 56 and logic as shown. The filter receives an input from the demultiplexer at 21, and is enabled at 44 to accept a shift pulse at 37 from the clock. A changeover switch 58 (at the right) is set to the upper or lower position according as the keyboard switch corresponding to the filter is a character switch (requiring a short pulse out at actuation) or a mode switch (requiring a pulse present throughout the duration of the actuated state). Stage 56 is set via OR 64 (and AND 66) or via AND 62, and these serve to eliminate the effect of key bounce (or similar effect in the ease of capacitive key switches) on break and make respectively.
Patent GB-1410375-A (GB)
Title: Carburettors
IPC: F04B43/06
Filed: 1972-10-25
Abstract: 1410375 Reciprocating pumps; spray carburetters WALBRO CORP 25 Oct 1972 49196/72 Headings F1A and F1B A diaphragm-controlled carburetter incorporates a fuel pump comprising a diaphragm 184 defining an actuating chamber 182, connected to the engine crank-case, and a pumping chamber 189 having an inlet valve 224 and an outlet valve 196, the diaphragm being spring-biased on its discharge stroke by a resilient spring member having a circular, dished portion 186 engaging the diaphragm and a radial extension 188 clamped to the carburetter body. The pump draws from a tank T via inlet 230 and filter 232, and delivers via valve 196 to a valve 166 controlled by a diaphragm 162 in chamber 160. Fuel entering chamber 160 passes via a check valve 174 to a main fuel passage 130 controlled by a needle valve 132, and via an orifice 176 to an idle port 148 controlled by a needle valve 150. Pulse chambers 210 and 212 communicate with the outlet and inlet passages of the pump, and have diaphragms 222 connected to atmospheric pressure. Vapour or foam in chamber 160 is withdrawn by a diaphragm pump comprising a  diaphragm 200 connected to the crank-case on one side, and defining a pumping chamber with an inlet valve 202 connected to chamber 160 via passage 242, and an outlet valve 204 connected to tank T via connection 252.
Patent GB-1478566-A (GB)
Title: Czclohexenyl and czclohexadienyl butanols their acetate esters and process for their preparation
IPC: A23L27/29
Filed: 1975-04-16
Abstract: 1478566 Cyclohexene and cyclohexadiene compounds INTERNATIONAL FLAVORS & FRAGRANCES Inc 16 April 1975 [17 April 1974] 49204/76 Divided out of 1478565 Heading C2C The invention comprises a process for preparing a mixture of compounds of the formula where R is hydrogen or acetyl, by treating the acetate of dihydro-α-ionol with a dehydrogenating agent to give the acetates, and if desired saponifying the acetates with a base to give the alcohols. The invention further comprises the alcohols of Formulae I and II.
Patent GB-1538630-A (GB)
Title: Projector for projecting test representations for eye investigations
IPC: A61B3/02
Filed: 1977-11-25
Abstract: This projector has a rotatable disc (1) with a number of projectable displays (2) arranged concentrically with the axis of rotation of the disc. There is further located on the disc a number of coding tracks (I-V) which are scanned by means of a scanning member (4) which is provided for this purpose with sliding-action contacts. The coding tracks are subdivided into the same number of sections as there are displays present. Each display is assigned one of the sections and has a coding (3). Furthermore, the projector has electronic means which permit each display to be brought, in response to a control command, into the projection beam path in the shortest way. <IMAGE>
Patent GB-1518128-A (GB)
Title: Combined anchoring/fluid transfer system
IPC: F16L27/02
Filed: 1975-12-01
Abstract: 1518128 Pipe joints SNAMPROGETTI SpA 1 Dec 1975 [3 Dec 1974] 49300/75 Heading F2G [Also in Division B8] A universal pipe joint conprises a hollow member 61 with a ball end 62 surrounded by a member 63 having seat portions 64 the joint being held together by a halved collar 66. O- ring seals 67 keep the joint fluid tight. In a modification, Fig. 5, flexible pipe 77 connects the members 71, 73 and is sealed at its ends thereto thus replacing the O-rings. The joints may be provided with a flexible housing surrounding them. The cardan joints of the Divisional Specification 1,518,129 are also described.
Patent GB-1015818-A (GB)
Title: Improvements in or relating to railway signalling systems
IPC: B61L19/06
Filed: 1963-12-13
Abstract: 1,015,818. Route-setting; fouling protection. STANDARD TELEPHONE & CABLES Ltd. Dec. 13, 1963 [Dec. 15, 1962], No. 49432/63. Heading B7N. In a relay set for controlling a group of interdependent track elements in a geographic route-setting railway signalling system, e.g. both points W1, W2 of a crossover, a fouling protection circuit is provided including a number of links 2a-2d for transmitting and a similar number of links 12a-12d for receiving fouling protection signals, the number being equal to the number of tracks leading to the controlled group of elements. Route search relays RS are also provided for each track leading to the group and a further relay RSC (not shown) is energized when a route is set over the crossover track. Where a route is set over the group of track elements, e.g. from a-c or b-d both points are set to normal and no fouling protection is required, however a route from a-d requires protection from directions b and c. As the route in this case is via the crossover, relay RSC is energized and applies fouling protection request signals to transmit links 2b, 2c via relay contacts RSC2 and RSC3. Fouling protection search signals may be received-on any of the links 12a-12d; assume a signal is received on line 12a, if the crossover is not set to normal to provide protection from direction d winding WP1 of relay WP controlling both points to normal is energized via relay contact WP22 in its reversed position. The subsequent release of winding WP2 changes contact WP22 to the position shown, whereby a relay WLF is energized to lock the points at contact WLF1 Contact WLF3 of this relay also extends the fouling protection search in the direction c by connecting link 12a to link 2c.
Patent GB-1236831-A (GB)
Title: Plastics film bags
Inventor: HIGHFIELD PETER EDWARD
IPC: B65D33/08
Filed: 1968-10-18
Abstract: 1,236,831. Plastics film carrier bags. BRITISH VISQUEEN Ltd. 9 Sept., 1969 [18 Oct., 1968], No. 49477/68. Heading B8K. [Also in Division A4] A plastics film carrier bag comprises an integral thickened band 6 around the mouth of the bag and a handle hole 5 positioned beneath the band 6. The handle holes may be of any desired shape and may be defined by slits along three sides only, forming a flap. A gusset may be provided in the bottom fold of the bag. The bags are made in pairs from a flattened extruded tubular plastics film having two superposed thickened bands running centrally along the longitudinal direction, the film being slit longitudinally down the centre of the thickened bands, sealed and cut transversely at intervals, and cut to form handle holes. The transverse seals may be single seals which are cut centrally, or double seals, the film being cut between them. In a modification, the bags may be formed singly from tubular film having a single band of thickening at one edge which is slit centrally, or from two strips of film each having a thickened band at one edge and being sealed together at the other edge, the transverse seals and cuts and handle holes being formed as before. The tubular film may be extruded to form thickened portions by modifying the profile of the die lips, by cooling a uniformly thick film more strongly in particular portions, or by maintaining parts of the die at a lower temperature than the remainder.