baber/WOPTO huggingface dataset:
Patent GB-433674-A (GB)
Title: Improvements in or relating to the control of gas valves for gas-heated apparatus
IPC: F24H9/20
Filed: 1934-01-18
Abstract: 433,674. Valves. JUNKERS & CO., GES., 35, Junkersstrasse, Dessau, Anhalt, Germany. Jan. 18, 1934, No. 36241. Convention date, Feb. 8, 1933. Divided out of 433,612. [Class 135] In a gas-heated apparatus, the main gas valve 2 is connected to a diaphragm 1, exposed to pressure through a pipe connected to the main gas pipe 18. A valve 29 is arranged in an orifice 26 and is connected to a diaphragm 3 exposed to pressures on either side of a restriction 12 in the water pipe 14 leading to the heater. In the arrangement shown in Fig. 2, the main gas valve 2 is actuated by a diaphragm 1, the upper side of which is subjected to gas pressure through the passage 22 and the lower side to pressure through the passage 21 which also provides gas for the pilot jet which has a thermally controlled valve 23. The gas to the passages 21, 22 is controlled by a floating valve 34 subjected to pressures before and after the valve 5, situated in the main gas passage and actuated by a diaphragm 3 exposed to pressures on either side of a restriction 12 in the water pipe to the heater. The area of the orifices 28 controlled by the valve 5 are also adjustable by the sleeve 35 rotated by a pinion 50 and by rotation of the gas cock 37, the maximum opening of which is controlled by the adjustable stop 40. Specification 433,612 is referred to.
Patent GB-1474483-A (GB)
Title: Machine for excavating underground galleries
IPC: E21D3/00
Filed: 1974-08-19
Abstract: 1474483 Tunnelling machines LINDEN-ALIMAK AB 19 Aug 1974 [22 Aug 1973] 36475/74 Heading E1F A tunnelling machine comprises two independently movable carrier frames 9, 10 which each carry rotary tools 1 movable by rams 8 about a vertical axis 7 and are universally connected for relative vertical, longitudinal and transverse movement; each frame having lifting rams and rams extending between the frames to effect separation and longitudinal sliding. As shown in Fig. 4 slides 26 and 27 on frame 10 engage a rail 17 universally jointed to frame 9 and a ram 23 effects relative movement about axis 21. A further ram (28 Fig. 5 not shown) acts to slide the frames apart along the rail. In the embodiment shown in Figs. 1, 7, 8, 13 lifting rams 35 are universally jointed to each frame and act via rods 36 and jaws 37 on flanged rails 30. Contraction of the rams of a frame causes the jaws 37 to pull upward on the rail flange and anchor the frame. If one frame is held anchored extension of the rams of the other frame causes that other frame to be lifted and allows that frame to be advanced by the longitudinally acting ram. This causes the jaws 37 to pivot on the rails (Fig. 13) but they can be swung back to the normal position and then locked by contraction of the rams. The other frame may then be advanced. The whole machine may be pivoted by raising one frame while the other is locked, extending ram 23, lowering and locking that one frame, raising the other frame and contracting the ram 23. In the embodiment shown in Figs. 50, 53 each frame has on each side: a floor engaging member 49 linked to the frame by rams 46 and 47. The rams 46 can both raise the frame and lift the member 49 and ram 47 is used to move the raised frame forward and to advance the member 49 to the new advanced position. A cross-piece 50 links the members 49 beneath each section, a lever 52 pivoted to the frame engages between raised flanges 51 on the cross-piece, and a ram 54 connected between the frame and the lever allow relative pivotal movement between the members 49 and the frame to be effected.
Patent GB-1241163-A (GB)
Title: Ophthalmological apparatus
Inventor: HARRISON ANTHONY WILLIAM
IPC: G02B3/14
Filed: 1967-08-09
Abstract: 1,241,163. Adjustable prisms. A.W. HARRISON. Oct.29, 1968 [Aug. 9, 1967], No.36476/67. Heading G2J. Ophthalmological apparatus includes a pair of adjustable prisms which are mounted adjacent one another and separated by a distance equal to the spacing of human eyes and each prism includes a pair of transparent plates 16, 11 and a member 22 engaged with the plates to form an enclosure in the shape of a prism, one of the plates being movable relative to the other plate. The moulded plate 11 of each prism is mounted on a frame (not shown) and is formed with channels 12 and 13, and hemispherical projections 14. Pivotally mounted on the projections 14 is a gimbal ring 15. A second moulded transparent plate 16 is formed with a wall 17 and channel 18 and diametrically opposed hemispherical projections 21, which are engaged with the gimbal ring 15. The plate 16 can therefore be moved relative to plate 11. A flexible bellows like sealing member 22 has beaded edges 22a, 22b which are engaged in the channels 18, 13, to define a sealed enclosure of substantially fixed volume. Integral with the wall 17 is a lever 23 coupled to a push rod 24 through a Hookes joint 25. Through further Hookes joints which constitute a parallelogram linkage a control handle moves a pointer and the plate 16 at the same time so that a graduated scale associated with each pointer can be used to determine the relative position of the plate 16 of each of the prisms. The enclosure is filled with a fluid of high refractive index thus forming a prism with varying angle. The adjustable prism may be mounted in a sealed enclosure which is filled with a transparent fluid of different refractive index. The space surrounding each prism, or alternatively, the enclosure within each prism may be evacuated. Each prism may be used with radiations other than visible light, and also the plates 11, 16 may be shaped as lenses or prisms. Since the volume of the enclosure within each prism is variable, a fluid reservoir may communicate with the enclosure so that it is maintained full of fluid.
Patent GB-770345-A (GB)
Title: Fuel feed and power control system for gas turbine engines
IPC: F02C9/16
Filed: 1954-11-30
Abstract: 770,345. Gas turbine plant. BENDIX AVIATION CORPORATION. Nov. 30, 1954 [Jan. 4, 1954], No. 34693/54. Class 110 (3). [Also in Group XXIX] The fuel supply to a gas turbine engine is controlled by means responsive to air pressures in the compressor of the engine to prevent stalling of the compressor during acceleration. To this end the compressor inlet and delivery pressures, Pr and Pc respectively, are fed to means 70, as described in Specification 769,504 for producing a pressure Pm which is a function of the ratio of compressor inlet and delivery Pc pressures, i.e. Pm=Pr.f(-), and is applied to Pr the exterior of a bellows which actuates a normally closed fuel valve 72 in a by-pass 68 interconnecting the inlet 20 and outlet 24 of a fuel pump 22. The interior of the bellows is subject to a pressure Pt detected at an intermediate point 82 in the compressor. The arrangement is such that as the pressure Pt decreases towards the value of Pm, indicating the approach of compressor stall, the fuel bypass valve is opened. The pressure Pt may be detected by a probe facing axially or tangentially or by a dual arrangement to obtain a resultant of the two pressure components. The probes 74, 78 for the pressures Pr, Pc may be situated other than at the extreme inlet and delivery points of the compressor, e.g. at points after the second and sixth stages respectively. The fuel system also includes a by-pass 38 controlled by a governor 34 which is manually adjusted to a required speed setting, a by-pass 28 controlled by altitude responsive means 26, and a by-pass 56 containing a normally closed valve 58 which is opened in response to excessive temperature at the inlet to the turbine. More than one control function may be performed by a single valve which may be a throttle valve in series with the pump. Alternatively, the pump may be of variable-displacement swashplate type in which case the devices 26, 34 would control the output of the pump. Specification '769,716, [Group XXIX], also is referred to.
Patent GB-1482989-A (GB)
Title: Coaxial line repeater
IPC: H01B11/18
Filed: 1974-08-22
Abstract: 1482989 Coaxial line repeaters PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 22 Aug 1974 [25 Aug 1973] 36952/74 Heading H4R A repeater for a coaxial line is located within the outer conductor and is coupled to the inner conductor without mechanical interruption, the inner conductor at the area of the repeater being provided with a high impedance at communication frequencies by placing a tubular ferromagnetic element about the inner conductor, and a signal connection is taken from the inner conductor on one side of the ferromagnetic element and applied to the input of the repeater and the repeater output fed to the inner conductor on the other side of the ferromagnetic element. As shown the integrated circuit repeater amplifier 4 is mounted on a ceramic member 5 which encircles the inner conductor 1 of the cable. Ferromagnetic elements 7 and 9 are provided one each side of the repeater amplifier to increase the high frequency impedance of the inner conductor and a capacitor 15, mounted on member 5, is connected from the inner conductor to cable outer conductor. Input and output of the amplifier are connected to the inner conductor on the remote sides of the ferromagnetic elements 7, and 9, by clips 8 and 10, which also hold the elements in place. A spring clip 6 locates the member 5 and provides connection to the cable outer conductor. Power for the amplifier is derived from between the inner conductor, via clip 17, and outer conductor, via clip 16. In an alternative embodiment Fig. 3 (not shown) signal pickup and return is provided by coils located in the ferromagnetic elements. More than one ferromagnetic element can be provided each side of the repeater amplifier with the different elements having different magnetic properties. The repeater can be a pulse regenerator for pcm signals.
Patent GB-1249822-A (GB)
Title: Improvements in paper punching machines
Inventor: FAGGETTER EDWARD FRANCIS
IPC: B26F1/08
Filed: 1969-07-23
Abstract: 1,249,822. Punching apparatus. DARTFORD PACKAGING MACHINERY CO. Ltd. 9 July, 1970 [23 July, 1969], No. 37063/69. Heading B4B. A punching machine for paper strip material, e.g. strips of adhesive-coated labels, comprises a rotary drum 5 having a punching head 9 slidable in a guideway 8 in or attached to the outer surface of the drum, a cam 7 for withdrawing the punching head to allow admission and off-feeding of the strip from a slot 11 in the head during rotation of the drum and fixed cam means 17 for actuating punches. The punching head 9 includes a punch carrier 12, which may hold several punches, and a complementary anvil block 14. A cam follower 10 is arranged to engage with the cam track 7 formed in a stationary hub 3 in which the drum rotates. As shown in Fig. 1, two punching heads 9 are mounted in the drum and as the latter rotates each head in turn is moved by the cam 7 so that the slot 11 passes over the strip material and the punch carrier then depressed by the cams 17 to pierce the strip. In the modification shown in Fig. 3, the punching heads 9 are slidably mounted in guideways 20 which are adjustably secured in circumferential key slot grooves 21 formed in the drum 5.
Patent GB-1070146-A (GB)
Title: Improvements in or relating to electrical control apparatus
Inventor: TAYLOR FRANK MARTIN HUSSEY
Filed: 1964-09-10
Abstract: 1,070,146. Potentiometers. THERMOCONTROL INSTALLATIONS CO. Ltd. Sept. 10, 1965 [Sept. 10, 1964], No. 37065/64. Heading H1S. In control apparatus incorporating a potentiometer 10 operated to control a motor by a motor-driven cam 3, the spring-pressed camoperated member 1 is pivoted on a carrier 5 adjustable by a screw 7 so that a full range of movement of the wiper arm 1 can be obtained for different amounts of angular rotation of the cam. Limit switches 12, 14 and 13, 15 are provided.
Patent GB-1083731-A (GB)
Title: Sulfurenic acid and derivatives thereof
IPC: C12P33/00
Filed: 1964-09-11
Abstract: The invention comprises compounds of formula <FORM:1083731/C2/1> wherein Y is a hydroxy, acyloxy or keto group, R is hydrogen and R1 is a methyl group or R and R1 in combination form a methylene group, and R11 is hydrogen or a C1- 9 alkyl group, and their preparation by cultivation of the fungus Polyporus sulphureus to give sulphurenic acid of formula <FORM:1083731/C2/2> followed, if desired, by one or more of (a) esterification of the carboxylic acid group, which ester may then be hydrolysed to give pure sulphurenic acid, (b) acylation or oxidation of the 3- and 15-hydroxy groups, or (c) catalytic hydrogenation of the methylene group.  The compounds of the invention have anti-androgenic and anti-inflammatory activity and may be formulated for oral or parenteral administration.
Patent GB-900889-A (GB)
Title: Improvements in or relating to industrial trucks
Inventor: CLOUGH MALCOLM EMERSON
IPC: B66F9/20
Filed: 1959-11-05
Abstract: 900,889. Fork-lift trucks. RANSOMES, SIMS & JEFFERIES Ltd. Feb. 6, 1961 [Nov. 5, 1959], No. 37632/59. Class 78 (3). [Also in Group XXXI] An hydraulically-propelled industrial truck derives its supply of pressure fluid from a source remote from the vehicle. The vehicle may be used in an area where a spark from an internal combustion engine or electric motor may be dangerous and the source of fluid pressure may be an hydraulic pump 26 driven by an electric motor 27 separated from the danger area by a wall 25. The fluid supply and return lines 22 and 22a may be taken to a central point, or may be on a movable gantry, or may lead to a number of points provided with disconnectible couplings, from whence the pressure fluid is conveyed to the vehicle through flexible leads 21, 21a which are wound upon or payed off a spring-loaded reel 19 mounted upon a swivelable reel holder 20, connections being provided to a rotating gland coupling 33. The vehicle hydraulic system comprises an hydraulic motor 14 for driving the front wheels controlled by a pedal-operated valve 36. The pressure pipe 35 leads to a junction 34 which may supply other circuits, e.g. the hydraulic lifting ram 18, and from thence to the valve 36 and through a direction controlling valve 37 to the motor 14. The motor 14 and valve 37 are also connected to a reservoir 41 which communicates, via line 32 and coupling 33 with the return line 21a. The supply pump 26 is connected to an accumulator 45 which is also connected to a pressureoperated switch 46 controlling the pumpoperating motor 27. When the pressure in the circuit falls, e.g. due to the demand made by the vehicle, the switch causes the motor 27 to operate. If the vehicle is stationary and is making no demand on the pressure supply, the switch 46 operates to stop the motor.
Patent GB-523449-A (GB)
Title: Production of ethers containing fluorine
IPC: C07C43/12
Filed: 1938-12-29
Abstract: 523,449. Ethers. GOWLAND, T. B., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Dec. 29, 1938, No. 37751. [Class 2 (iii)] Fluorine-containing ethers are made by reacting an alkali metal alcoholate with 1- chlorodifluor-2-dichlorethane and isolating the resulting ether from the reaction product. The products have the general formula CHCl 2 .CF 2 OR, where ROH is the alcohol used. The preparation of ethers from methyl, ethyl and isobutyl alcohols is exemplifies ; the ethers from propyl, isopropyl and n-butyl alcohols, and from cyclohexanol and its homologues, are also specified.
Patent GB-1318288-A (GB)
Title: 2-butene-1,4-diformates
IPC: C07C43/14
Filed: 1970-08-05
Abstract: 1318288 2-Butene-1,4-diformate TOYO SODA MFG CO Ltd 5 Aug 1970 [5 Aug 1969] 37761/70 Heading C2C The invention comprises 2-butene-1,4-diformate. This compound is obtained by reacting cis- or trans-1,4-dihalo-2-butene or a mixture thereof with an alkali metal salt, an alkaline earth metal salt or an ammonium salt of formic acid. The 1,4-dihalo-2-butene may be formed in situ from a 3,4-dihalo-1-butene by means of an isomerization catalyst capable of converting the 3,4-dihalo-1-butene to the 1,4- dihalo-2-butene. The reaction is preferably carried out in the presence of a polar solvent capable of dissolving the formate. If the reaction is carried out in the absence of a solvent or in the presence of a non-polar solvent or the formate product then the use of a catalyst capable of forming an onium salt under the reaction conditions would be necessary. The invention also comprises a method for selectively preparing the trans- or cis-form of 2- butene-1,4-diol in which either cis- or trans-2- butene-1,4-diformate is subjected to hydrolysis.
Patent GB-1360972-A (GB)
Title: Cephalosporin compounds
IPC: C07D501/20
Filed: 1970-08-06
Abstract: 1360972 Cephalosporin compounds GLAXO LABORATORIES Ltd 15 July 1971 [6 Aug 1970] 38020/70 Heading C2A Novel 3-phosphoranylidene-ethyl cephalosporins having the general Formula (I): and acid-addition salts thereof, wherein R<SP>1</SP> is a carboxylic acyl group, R<SP>2</SP> is hydrogen or a carboxyl-blocking group, the groups R<SP>3</SP>, which may be the same or different, are each C 3-10  alkyl, C 5  or C 6  cycloalkyl, aryl or di(C 1-6  alkyl)- amino, R<SP>4</SP> is hydrogen or a C 1-6  alkyl, aryl, cycloalkyl, ester, acyl, nitro or nitrile group, Z is > S or > S # O, and the dotted line signifies a double bond in the 2,3- or 3,4-position, are prepared by reacting a 3-halomethyl cephalosporin of Formula (II)  wherein X is Cl, Br or I and the other symbols have the aforesaid meanings, with a phosphorus ylid of Formula (III) wherein R<SP>3</SP> and R<SP>4</SP> are as defined above. The phosphorus ylid may be generated in situ in the reaction mixture by treatment of the corresponding phosphonium compound with a base which is stronger than the conjugate base of said phosphonium compound. The compounds (I) may be converted into corresponding cephalosporins having an ethyl or substituted ethyl group at position-3, e.g. compounds of Formula (V)  wherein R<SP>7</SP> has the same meaning as R<SP>1</SP> above, by cleavage of the carbon-phosphorus double bond by reduction or hydrolysis (e.g. with aluminium amalgam, palladized charcoal or HCl/zinc). The compounds of Formula (V) in which R<SP>4</SP> is an alkoxycarbonyl group (e.g. -CO.OR<SP>8</SP> where R<SP>8</SP> is C 1-6  alkyl) are novel cephalosporin antibiotics. They may be used in association with a pharmaceutical carrier or diluent to provide pharmaceutical or veterinary compositions having broad spectrum antibiotic activity.
Patent GB-1122105-A (GB)
Title: Process and device for continuously adhering solder to metal sheets
Inventor: LANGE FRANZ
IPC: B23K20/04
Filed: 1966-08-25
Abstract: 1,122,105. Soldering; jointing. INSTITUT FUR CHEMIEANLAGEN. 25 Aug., 1966, No, 38200/66. Headings B3R and B3V. In adhering thin solder sheets to a metal strip 1, the strip 1 is conveyed through a liquid fluxing agent 3 and then the fluxed strip and thin solder sheets 4, 5 are passed between two rolls 8, 9 which press the assembly together so that no substantial plastic deformation of the solder occurs. The strip 1 is conveyed from a roller and the solder sheets 4, 5 are conveyed from rolls over guiding rolls 6, 7, the pressing rollers 8, 9 squeezing out surplus flux leaving a thin film of liquid flux ensuring adhesion by surface tension for several days. The flux may be aqueous solutions of zinc chloride and ammonium chloride, possibly including finely divided solder metal, for adhering lead or tin solder sheets on to copper sheet.
Patent GB-968273-A (GB)
Title: An electric motor suitable for operation at high variable speeds
Filed: 1960-11-07
Abstract: 968,273. Commutation arrangements for dynamo-electric machines; control of D.C. motors. SIEMENS-SCHUCKERTWERKE A.G. Nov. 7, 1960 [Nov. 5, 1959], No. 38238/60. Drawings to Specification. Headings H2A and H2J. An electric motor has the stator windings connected to the supply through electrical or mechanical switching members controlled by a contactless commutating arrangement and has a field winding connected through slip-rings to a stationary control arrangement for varying the speed of the motor. The control signals for the switching members are substantially independent of the motor speed and have a current waveform that rises to a fixed maximum and falls to zero. These control signals may be produced optically, capacitively or magnetically using Hall effect generators or magnetically sensitive resistors, all such devices producing a fixed maximum output for all speeds; they may be amplified or modulated before being applied to the switching members. The stationary control arrangement preferably includes a magnetic amplifier supplied from a potentiometer so that a desired speed can be set. The switching members are preferably grid-controlled rectifier sets and the stator winding sections are evenly distributed, each section being wound in the opposite direction to the adjacent section. The motor is used for driving a feedwater pump in a steam generating installation.
Patent GB-824753-A (GB)
Title: Improvements in or relating to ferroelectric crystal matrices and calling subscriber's telephone station identification apparatus in which such matrices are used
IPC: H04Q3/00
Filed: 1957-12-10
Abstract: 824,753. Electric selective signalling systems. WESTERN ELECTRIC CO. Inc. Dec. 10, 1957 [Dec. 18, 1956], No. 38376/57. Class 40 (1). [Also in Group XXXIX] A matrix has two ferro-electric capacitors connected in series at each cross-point such that application of a voltage to the junction between the capacitors causes both to switch and deliver a pulse to each of their associated co-ordinate wires. Each cross-point of a 100 x 100 matrix identifies a subscriber to a telephone exchange and in response to 130 volts applied to the cross-point junction a pulse is put on the column wire to operate a transistor switch in a set of ten marking the thousands digit and a transistor switch in a set of ten marking the hundreds digit. The corresponding pulse put on the row wire operates transistor switches in two sets of ten marking the tens and units digits. The four operated transistor switches mark the four digits identifying the subscriber and for each digit causes the generation of a two-out-offive tone code. The dielectric of the capacitors may be barium titanate or guanidine aluminium sulphate hexahydrate.