baber/WOPTO huggingface dataset:
Patent GB-1006604-A (GB)
Title: Improvements relating to electric motors
Inventor: WEST JOHN CLIFFORD
IPC: H02K33/18
Filed: 1961-08-03
Abstract: 1,006,604. Oscillating motors. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Nov. 2, 1962 [Aug. 3, 1961], No. 28212/61. Heading H2A. An electric motor which produces oscillatory linear motions comprises a magnetic guide member 1 embraced by an electrically conductive ring member S movable along the guide member in response to energization from an A.C. supply of inductive means L in series with capacitive means C of value such as to form a series resonant circuit at the frequency of the supply, and means for enabling a return force to be applied to the ring member so that it moves to and fro along the guide member. In Fig. 2, the member 1 is mounted vertically so that the ring member is returned by gravity and the inductive means is an iron-cored coil, whilst in Fig. 10 a similar drive coil A is provided at each end of the guide member. The motor may embody a ferro-resonance effect in which by suitable design of the coil inductance the circuit can be triggered to produce a large current jump which is utilized to assist reversal of direction of the ring member, and in Fig. 10 sensing windings C alternately trigger two silicon controlled rectifiers in series with triggering windings B. The SCR's may be replaced by transistors, and an alternative triggering circuit is described in which the position sensing element is a phototransistor. The guide member may be curved, e.g. semicircular; there may be more than two drive coils, with a ring member disposed between each pair, and the oscillation amplitude may be increased by providing one or more booster coils.
Patent GB-842875-A (GB)
Title: Improvements in or relating to semiconductors and apparatus utilizing same
IPC: H01L29/00
Filed: 1956-09-17
Abstract: 842,875. Semi-conductor circuits; amplitude modulating systems. PHILCO CORPORATION. Sept. 17, 1956 [Sept. 19, 1955], No. 28330/56. Classes 40(5) and 40(6). [Also in Group XXXVI] A signal translating device comprises a semiconductor body having an emitter and collector electrodes oppositely disposed on two opposing surfaces of the body, a base electrode and a rectifying electrode to the body separating the portion associated with the emitter and collector from that associated with the base electrode. Figures 1 and 3 show a transistor comprising a semi-conductor body 10 with a central emitter 12 and collector 14, and a base electrode 20. Annular rectifying electrodes 22 and 24 are disposed between the emitter and base and the collector and base respectively. Electrodes 22 and 24 when reverse biased, control the base-emitter current due to the formation of a depletion layer of variable width in the conducting path. Figure 4 shows a high gain, high input impedance amplifier in which the emitter is earthed and the collector and rectifying electrodes 22 and 24 are reverse biased. Input signals applied from source 52 to rectifying electrode 22 result in like phase output signals at the collector 14. An adding circuit may be provided by applying a second signal to rectifying electrode 24, or a modulating circuit by applying a second signal to emitter electrode 12. Pulses may be generated by applying a large amplitude sine wave to input electrode 22. A phase inverted output signal may be obtained from the emitter electrode by adding an impedance in the earth lead thereto. In an alternative arrangement, the base electrode is central and the emitter and collector electrodes are in the form of rings surrounding the two rectifying electrodes; the inner edge of the electrode may be slightly nearer to the base electrode than is the edge of the emitter electrode. The rectifying electrodes may be in the shape of bars lying between the base and the other two electrodes, and one rectifying electrode only may be used, the opposite region being coated with epoxy resin to avoid the risk of conducting contaminants. An additional pair of rectifying electrodes may be placed between the first rectifying pair 22 and 24, to collect stray carriers which might otherwise reach electrodes 22 or 24. The semi-conductor may consist of germanium, silicon or indium antimonide and the electrode materials of indium or zinc, or tin-soldered nickel. Specifications 810,862, 810,946, 817,953 and 824,484 are referred to.
Patent GB-702100-A (GB)
Title: Fluid pressure brake equipment
IPC: B60T15/54
Filed: 1951-12-04
Abstract: 702,100. Fluid pressure brakes. WESTINGHOUSE AIR BRAKE CO. Dec. 4, 1951 [Dec. 20, 1950], No. 28381/51. Class 103(1) The invention is concerned with a design for a construction of triple or distributer valve for railway fluid pressure braking apparatus which is particularly suitable for use in Europe wherein there is an international movement of rail cars requiring various different brake operating conditions. Under these conditions numbers of cars in each train may have no braking equipment, or equipment which is defective, so that the present construction includes special quick service means for transmitting a brake pipe pressure reduction as rapidly as possible throughout a train. Such means comprises especially the part 9 of the valve assembly shown in the drawings. The chamber 103 on the right hand side of diaphragm 101 in this device is connected by passage 23 to the brake pipe 2. If the pressure in the brake pipe is reduced by about .4 of a pound, a sufficient differential is created across diaphragm 101 for pressure from the supply or auxiliary reservoir 3 to move slide valve 107 against spring 106. The passage 183 will therefore be disconnected from atmospheric passage 184 and the passage 186 will be open to chamber 103 so that brake pipe pressure will exhaust through a cavity 185 in the main slide valve 60 and by passage 134 through open valve 130 in an inshot valve device 10 to an atmospheric port 121. The movement of slide valve 104 also puts chamber 103 in communication by port 187 and passage 183 with a chamber 86 between diaphragms 78 and 79 of a control chamber charging device 8. The slide valve of this device is thus operated to isolate the control reservoir 13 and the chamber 32 at the top of the diaphragm assembly so that the main slide will be operated in correspondence with the variations of brake pipe pressure in chamber 21 at its lower end. When the main slide valve 60 is moved the venting of the brake pipe through the port 21 in the inshot valve 10 is stopped and further venting takes place more gradually in the usual manner into accelerator reservoirs 14 and 15. The assembly incorporates a brake cylinder inshot valve device 10 that when actuated, restricts entry of fluid to the brake cylinder to that passing through the choke passage 114. This rate of entry of fluid to the brake cylinder will be modified according to the setting of a service selector valve device 11 by which at the " Passenger " or " Express " positions further choke passages 141 and 142 may be made effective in addition to passage 114. A combined manually operated brake cylinder and supply reservoir release valve device 12 is included and a modification of this device is also described.
Patent GB-1099422-A (GB)
Title: Window catches
Inventor: JONES LESLIE WALTER
IPC: E05C3/04
Filed: 1965-07-06
Abstract: 1,099,422. Window catches. PERFECTA MOTOR EQUIPMENTS Ltd. Sept. 29, 1966, No. 28487/65. Heading E2A. [Also in Division F2] A window catch spindle is formed with a tapered portion 4 which expands a lead bush 8 to non-rotatably grip an aperture 5 when a nut 11 is tightened on to the spindle. Soft washers 9 and 10 are placed each side of the glass. The spindle is formed from a metal shank I with a zinc-base alloy lead 2 east onto it. The portion 4 may be serrated. The head 2 may be brass, and be brazed to the shank. The spindle may be hollow to receive a rotatable shaft.
Patent GB-1300436-A (GB)
Title: Electronic component tester
IPC: G01R31/26
Filed: 1970-06-12
Abstract: 1300436 Testing electrical components INTERNATIONAL BUSINESS MACHINES CORP 12 June 1970 [30 June 1969] 28510/70 Heading G1U [Also in Division G3] Apparatus for applying to a component under test a required current or voltage comprises a differential amplifier 14 and a resistor 3 connected in series with both the amplifier output and the component 2 under test, the voltage across either the resistor 3 or the component 2 being fed back to the amplifier input for comparison with a reference voltage 1. The amplifier thus maintains either the current through or the voltage across component 2 proportional to the reference, according to which voltage is fed back. The apparatus may also be used to maintain the voltage across the series combination of component 2 and resistor 3 constant by feeding this voltage back, or to present an effective open circuit or short circuit to component 2 by supply a zero voltage reference. The feedback connections include isolating amplifiers 26, 28. Associated with each input of the differential amplifier 14 are f.e.t. switches 10-13, controlled by computer, for connecting either of two summing junctions to the respective input, the reference voltage 1 and the required feedback voltage being applied to the operative summing junctions. A test output signal representing the current through or voltage across the component 2 under test is supplied (44) by a differential amplifier 31. Range changing is provided by resistors 4, 5 which can be substituted for resistor 3 and by other additional resistors in the summing networks.
Patent GB-638653-A (GB)
Title: Improvements in the manufacture of fuel from peat or turf
IPC: C10F7/00
Filed: 1947-10-24
Abstract: 638,653. Preparing peat. CROSS, E. Oct. 24, 1947, No. 28515. [Class 50] Fuel blocks are prepared from peat by adding caustic alkali to raw peat, kneading the mixture, forming it into blocks and drying it. The peat as cut is fed into an auger machine, which may be gently heated, of the type used for brick making. Caustic soda solution to about half the quantity required for neutralization of the peat acidity, is added and mixed with the peat in the machine, which extrudes the mixture through a shaping nozzle, and preferably through a length of canvas hose, some of the water escaping through the walls of the hose. The extruded mass is cut into lengths, stacked and dried. Peat mould, coal dust, sawdust or the like may be added during the mixing process.
Patent GB-261398-A (GB)
Title: Improvements in or relating to electric incandescent lamps
IPC: H01K3/20
Filed: 1926-11-12
Abstract: 261,398. Gral Ges. f³r Elektro-Industrie. Nov. 13, 1925, [Convention date]. Making lamps.-In the manufacture of stems fitted with exhaust tubes, the air-passage through the pinch is formed by including a permanent core in the pinched mass. The core may comprise a thin-walled metal tube g, or a porous material, e.g. asbestos or carbon, which is left in to form an air-passage. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following. The air-passage may be formed by a core that may be withdrawn or dissolved out. e.g. a core of magnesia soluble in sulphuric. acid and a support is described for holding the stem tube a, the exhaust tube e, the core g, and the leading-in wires d<1>, d<2> in position during the pinching operation. This subject-matter does. not appear in the Specification as accepted.
Patent GB-602561-A (GB)
Title: Improvements relating to fusible plugs such as are used in steam-generating apparatus
IPC: F22B37/47
Filed: 1945-10-29
Abstract: 602,561. Fusible plugs for steam boilers &c. MILLS, G. H., and STONE, S. R. Oct. 29, 1945, No. 28564. [Class 123(ii)] A fusible plug, adapted to be screwthreaded into, say, the fire-box roof of a locomotive boiler, comprises a gun-metal &c. plug body 1 formed with a through passage 5 which terminates in an upwardly tapered throat 6 and a wide and deep end recess 7 both provided with a filling 12 of lead or other readily fusible material in which is embedded a substantially spherical core 10 of infusible material, e.g. a steel ball. The ball 10, which is lodged in the throat 6, has a diameter equal to or slightly greater than the minimum diameter of said throat.
Patent GB-742711-A (GB)
Title: Improvements in or relating to heat insulation
Inventor: GREGORY SIDNEY GEORGE EDWARD
IPC: B05D5/00
Filed: 1952-11-12
Abstract: <PICT:0742711/III/1> Pipe lagging 2, which may be old lagging in need of improvement, is coated with non-bituminous organic material 4 which is highly viscous, plastic and non-setting but forms a superficial skin in contact with the air so that the organic material beneath remains plastic because of the air exclusion.  The coating may contain aromatic petroleum residues or other petroleum fractions, bodied tung oil, wood flour, asbestos, titanium dioxide, cobalt driers, blown castor and linseed oils, white spirit, alcohol-insoluble damar fraction, pine oil, rosin oil or a diatomaceous-earth paint-filler, and also pigments, insecticides, disinfectants and fungicides.  When the coating has been applied, a bandage 3 of hessian, scrim or linen is wrapped under pressure around the coating, and kept in place by chicken wire, so that the coating 4 penetrates the bandage.  A final coat of light-coloured paint may be applied.ALSO:Mastics for use in lagging pipes consist, in parts by weight, of (1) petroleum residues 35, tung oil 35, wood flour 10, short fibre asbestos 16, titanium dioxide 3, cobalt driers 1; (2) blown castor oil 30, blown linseed oil 40, short fibre asbestos 12, wood flour 15, titanium dioxide 1, white spirit 2; (3) alcohol insoluble Damar fraction 50, pint oil 10, rosin oil 20, "Filtercel" (Registered Trade Mark) 8, short fibre asbestos 8, petroleum fraction (160-250 DEG C.) 4.
Patent GB-1191793-A (GB)
Title: A Respiratory Mask
Inventor: DRAGER OTTO HEINRICH
IPC: A62B18/02
Filed: 1968-06-14
Abstract: 1,191,793. Respiratory masks. 0. H. DRAGER [trading as DRAGERWERK, HEINR. & BERNH DRAGER], 14 June, 1968 J14 June, 1967], No. 28597/68. Heading A5T. A respiratory mask has an integral face seal, comprising outer and inner sealing projections 2, 4 which define a space 5 arranged to receive exhaled gas from. the mask, and an exhalation aperture 8 leading from the space. The mask may be only single-walled and provided at its rim with sealing projections 2 and 4, or it may be double-walled only in the region of said projections. Exhalation gas outlet aperture 7 interconnects interior 6 and space 5 and' outer wall .1 has gas outlet aperture 8. Non-return exhalation valves may be provided in said apertures. Walls 3 and 1 merge in the region of mount 11 for the edge of window 12, or each wall may have a window so that space 5 extends over the window area. At inhalation air is "drawn in through union 9 .and valve 10 and at exhalation' air flows from interior 6 through aperture 7 and space 5 to outlet 8. Aperture 7 'may be dispensed with, in which case the exhalation valve between interior 6 and space 5 is formed by lip 4. When the seal is formed' of a gas-pervious material, exhalation gas flow outwardly over the entire seal from space 5 and outlet 8 may be dispensed with. An additional exhalation valve may be arranged at the underside of the 'mask so that only part of the exhalation: gas is discharged through space 5. In Fig. 2 (not shown) the mask is provided with a window washing arrangement.
Patent GB-1181019-A (GB)
Title: Improvement in or relating to Strapless Brassieres
Inventor: EVERS KURT
IPC: A41C3/06
Filed: 1967-06-21
Abstract: 1,181,019. Brassieres. K. EVERS. 21 June, 1967 [23 June, 1966; 19 Dec, 1966], No. 28687/67. Heading A3V. A strapless brassiere comprises rigid cups, or as shown, halfcups 1, which may be of metal or preferably, plastics material with downward extensions 2 which are held in frictional engagement with the wearer's skin immediately below the breasts by a band 5 which may form part of a conventional strapless brassiere or of a dress, swimsuit etc. The extensions may pass through loops on the inner face of the brassiere. The cups preferably have a textile covering but may have a decorative outer surface instead. The cups may be padded and ventilation apertures 8 may be provided.
Patent GB-170861-A (GB)
Title: Improvements in the treatment of tin plate scrap
IPC: C25C1/14
Filed: 1921-10-29
Abstract: Copper oxide which has been reduced during its use as a depolarizer in a process for de-tinning tin-plate scrap is re-oxidized by placing it on a tray, moistening it with caustic soda solution, and covering it with a sheet of pervious material.
Patent GB-192462-A (GB)
Title: Improvements in or relating to pouring apparatus for centrifugal casting machines
IPC: B22D13/10
Filed: 1921-10-31
Abstract: 192,462. Centrifugal Castings, Ltd., Hurst, J. E., and Ball, E. B. Oct. 31, 1921. Metal-pouring.-A trough-like pourer for centrifugal casting machines has the edge A', over which the metal flows on rotation of the trough, inclined or stepped so that a progressive pouring along the mould is obtained. A reservoir B may be combined with the trough and be formed eccentrically to the axis of the trough or a chamber such as B may be arranged to receive metal from a separate funnel. In some cases the end of the trough may be closed and the trough may be of a capacity sufficient to contain the whole of the charge.
Patent GB-1147984-A (GB)
Title: Improvements in or relating to the production of alkylene polyamines
Inventor: BLEARS JAMES GORDON
IPC: C07C209/08
Filed: 1965-07-07
Abstract: 1,147,984. Preparing alkylene polyamines. SIMON-CARVES Ltd. 20 June, 1966 [7 July, 1965], No. 28872/65. Heading C2C. Alkylene polyamines are prepared by heating an aqueous ammonia solution and mixing it with an alkylene polychloride which is at ambient temperature, the ammonia being in molar excess; passing the mixture into a reactor and reacting the mixture in the liquid phase under pressure; and recovering the products. Specified products include ethylene diamine, for which reaction a temperature of 120-180‹ C. is used and a molar ratio NH 3 : C 2 H 2 Cl 2  of at least 30: 1. The reaction product is liberated from its hydrochloride using excess aqueous caustic soda. Piperazine may be formed as a by-product.
Patent GB-171375-A (GB)
Title: An improved compression-relief system for radial-cylinder internal combustion engines
IPC: F01L13/08
Filed: 1921-10-31
Abstract: 171,375. Soc. des Moteurs Salmson (Systeme Canton-UnnÚ). Nov. 9, 1920, [Convention date]. Starting.-In a radial-cylinder engine comprising a ring A having cams C which act successively on the valve-rods P, compression is relieved at starting by levers B pivoted on a ring E and acting upon the rods P of the admission valves. For starting, the ring E is adjusted around the support S by means of a shaft I, Fig. 3, having a crank M engaging a slotted member N on the ring. The levers B are brought under the valverods P by springs R and remain in position until disengaged by lateral bosses D on the cam ring A. After starting, the shaft I and ring E are returned by a spring V or other means, so that the levers B are tilted into an inactive position by bosses T on the support S.
Patent GB-839990-A (GB)
Title: Improvements in or relating to bottle uncaser
IPC: B65B21/18
Filed: 1956-09-21
Abstract: 839,990. Manifold devices for lifting bottles. BARRY - WEHMILLER MACHINERY CO. Sept. 21, 1956 [Oct. 6, 1955], No. 28902/56. Class 78 (4). Movement of an inner frame B (Fig. 2), relatively to the outer frame A of a device for lifting bottles from a crate causes gripper fingers on the outer frame A to be moved to grip the bottles. As illustrated, each bottle is gripped between a jaw 30 (Fig. 3), carried by a sleeve 26 sliding vertically on the outer frame and a jaw 32 pivoted at 29 to the jaw 30 and moved against the bias of a spring 35 to release the bottles when one of several rods 40 carried by the inner frame engages the upper end 27 of the pivoted jaw. Each gripper 30, 32 is normally biased downwardly by a spring 34 so that a cross-pin 28 engages a sleeve 20 which supports the gripper and which can be moved along rods 19 which in turn can be moved laterally to adjust the positions of the grippers. The lower portions 31, 33 of the gripper jaws are shaped to guide the bottles into engagement with the grippers. The inner frame B (Fig. 2), is supported by rollers 39 from tracks 12 on the outer frame A and is moved by a pneumatic ram 44.
Patent GB-1385433-A (GB)
Title: Cam assembly for a circular knitting machine
IPC: D04B15/32
Filed: 1972-06-21
Abstract: 1385433 Knitting machines FOUQUETWERK FRAUZ & PLANCK 21 June 1972 [21 June 1971] 28964/72 Heading D1C Cams 7 are attached to removable inserts 5 which are secured in openings 3 in blocks 1 by spring biased members 12. By inserting and turning a key in a keyhole 13 an insert and its cam may be withdrawn and replaced. In a modification (Fig. 6, not shown) the inserts are held in by bolts.
Patent GB-599236-A (GB)
Title: Improvements in or relating to levelling systems for cable-tool drills
IPC: E21B7/02
Filed: 1945-11-01
Abstract: 599,236. Lifting-jacks. RUSTON-BUCYRUS, Ltd. Nov. 1, 1945, Nos. 29027 and 29028. Convention dates, Sept. 9, 1944, and Jan. 1, 1945. [Class 78(iii)] [Also in Group XXI] During well boring with cable-tool drills the tool-carrying frame 11 is supported on hydraulically-operated telescopic spuds. Each spud comprises a rectangular or octagonal outer casing 38 closed at the top by a cap 40 and rigidly connected to the frame 11, and a cylinder 44 pivotally connected to the cap and containing a piston 45 and piston rod 46. The piston rod is pivotally attached to an inner casing 39 at 47. The inner' casing is attached by a universal coupling to a ground engaging shoe 48 and slides in circular guide rings 42 which are bent from strip bar, the outer diameter of the rings being slightly greater than the inner width of the casing 38. The rings are secured to the outer casing by cutting rectangular holes in the casing 38 and the joints between the ring and the casing 38 are welded. The hydraulic ram of each spud is operated independently of the other rams. Oil under pressure is supplied from a sump 29 to a three way valve 32 by a motor driven pump and from there it is led to the top and bottom of the rams as required, by pipes 35, 36. A stop valve 37 prevents damage to the valve 32 when the machine is in use.
Patent GB-1509634-A (GB)
Title: Printing device
IPC: B41J11/48
Filed: 1976-07-13
Abstract: 1509634 Selective printing NCR CORP 13 July 1976 [31 July 1975] 29035/76 Heading B6F A printing device for a printing machine has one or more feed units capable of advancing material to be printed at any of the printing stations 34, 36, 38 each station being associated with a different printing operation on separate recording media; the or each drive unit is mounted on a common drive shaft 64 and supports 97, 98 so as to be movable to any of the stations 34, 36, 38 and includes gears and a clutch controlled by a solenoid. One drive unit may have the capability to advance material in the opposite direction. A single print head 40, e.g. a matrix type head, is driven along a screw 52 by motor 32 to any of the stations.