baber/WOPTO huggingface dataset:
Patent GB-1454010-A (GB)
Title: Heater device
IPC: F24J2/04
Filed: 1974-03-27
Abstract: 1454010 Utilizing solar heat ANDRE KAIMAN LAU 27 March 1974 13663/74 Heading F4U A liquid heating device utilizing solar heat comprises a liquid storage reservoir 1 having an outlet 4 and inlet 5 communicating with a solar heater 2 having a heat conductive planar panel 6 for receiving solar energy spaced from a second panel within a housing. The space is unobstructed and the liquid circulating therethrough contacts the entire area of the facing surfaces of the panels. There may be two such solar heaters connected together and to the inlet and outlet of the reservoir, which is thermally insulated. The panels are of metal.
Patent GB-880160-A (GB)
Title: Improvements in or relating to electrical signal transmission systems
Inventor: KING KENNETH CEDRIC ARTHUR
IPC: H04J1/04
Filed: 1959-04-22
Abstract: 880,160. Multiplex transmission systems. TELEPHONE MANUFACTURING CO. Ltd. April 6, 1960 [April 22, 1959], No. 13700/59. Class 40 (4). In a multichannel electric signal transmission system including at least two double sideband sources of which the upper sideband of one is contiguous with the lower sideband of the other, a band stop filter is used to suppress the contiguous sidebands. By using a band-pass filter in conjunction with two similar double sideband sources and adding the outputs of the two filters a range of at least four contiguous single sideband channels is obtained. In Fig. 1, two carriers of frequencies #c 1  and #c 2  (#c 2 >#c 1 ) are modulated by signals #m 1  and #m 2 , the contiguous sidebands #c 1 + #m 1 , #c 2  - #m 2  being suppressed by band-stop filter BSF. Fig. 2 shows the same two carriers modulated by signals #m 3 , #m 4  respectively, and in this case the non- contiguous sidebands fc 1  - fm 3 , #c 2  + #m 4  are suppressed by band-pass filter BPF. If the filter outputs of Figs. 1 and 2 are combined we obtain a two carrier system using the four sidebands as independent channels. A sixchannel system needing only three carriers (Fig. 3), uses band-stop filters to suppress the contiguous sidebands obtained by modulating carriers #c 1 , #c 2  and #c 2 , #c 3  with the four signals #m 1 , #m 2  and #m 5 , #m 6  respectively, and uses a band-pass filter to suppress the non-contiguous sidebands obtained by modulating carriers #c 1  and #c 3  with signals #m 3  and #m 4  respectively.
Patent GB-495781-A (GB)
Title: Improvements in or relating to pit props
IPC: E21D15/12
Filed: 1937-05-18
Abstract: 495,781. Mine-props. HAARMANN, A. May 18, 1937, Nos. 13900 and 13901. Convention dates, May 16, 1936 and April 2, 1937. [Class 20 (ii)] A pit-prop of the type in which a movable head portion engages an inclined surface at the upper end of the main member, and is retained in operative position by a latch pivoted to the main portion, has the upper surface of the block formed irregularly whereby it initially remains attached to the mine roof after release of the latch, and forms an abutment causing the main prop member to be thrown laterally ; interfitting shoulders are also provided on the abutting inclined surfaces and the latch is urged by a spring to the engaging position. As shown, the block d is formed with a channel v, one terminal edge of which w projects higher than the other edge x, the channel having ribs y to increase its adherence to the mine roof beam. The parts are engaged in operative position by a T-headed latch h, pivoted at g to the main member, and engaging the end walls of a narrow opening n in the block, the latch falling by gravity into this position or being urged thereto by a spring m from an enlarged opening k in the block through which it passes for engagement and release. In order to retain the block on the prop when in the unloaded position, interfitting shoulders s, t are provided on the inclined faces of the block and prop respectively, and are pressed into engagement by the latch h. A loose chain u is also provided between the block and the main member so that after the main member has moved laterally on release of the latch, the block is subsequently pulled out of engagement with the mine-roof support.
Patent GB-580600-A (GB)
Title: Transformer with adjustable reactance for electric arc welding
IPC: H01F29/10
Filed: 1943-08-26
Abstract: 580,600. Transformers. FRIES, E. Aug. 26, 1943, No. 13936. [Class 38 (ii)] A transformer with adjustable leakage reactance has a magnetic shunt mounted in a space between the concentric primary and secondary coils, the shunt comprising a stationary part 4<11> fixed to the transformer core and carrying one or more slide rails 6 and a movable part 4<1> that slides along the rails and is pressed against them by bolts 7 and spring washers 8. The movement may be effected by rotation of a knob 12 which thus varies the air gap between the two parts 4<1>, 4<11>. The transformer, which is specially adapted for arc welding, may be energized from a three-phase circuit as shown in Fig. 6. To obtain balance in such a circuit for varying loads, the reactance 32 is varied simultaneously with the varying of the shunt air gap, and in Fig. 3, the reactance coil is mounted on a core 15 also adjusted by the knob 12 so as to vary an air gap 19. In other balanced arrangements, a capacity is simultaneously varied with the leakage reactance, by successive operation of a number of mercury switches.
Patent GB-995755-A (GB)
Title: Electromagnetically operated switch
IPC: H01H50/22
Filed: 1962-04-11
Abstract: 995,755. Electromagnetic switches. SQUARE D. CO. April 11, 1962 [June 29, 1961], No. 13958/62. Heading H2B. The armature 34 of an electromagnetic switch is detachably connected to a contact carrier 40 on the other side of coil 33 by a snapfastening element 64 carried by arms 42 secured to the armature. The element 64 is made of nylon, and comprises two side walls 61 slidably engaging arms 42 and joined by intermediate portions 62, 63. Each side wall 61 has two rearwardly extending resilient tongues 64 formed with shoulders 66, 67 which can be snapped into engagement with complementary shoulders 71, 72 formed in a recess 70 of contact carrier 40. The armature 34 is pivoted on a pin 46 passing between arms 42, a U-shaped spring 50 engaging a circumferential groove in the pin and retaining it in place. The coil 33 is embedded in a moulded body 85 of insulating material, e.g. rubber, which is formed with two diametrically-opposed flanges which are clamped between base 2 and cover 5. The cover 5 leaves exposed all the terminals to facilitate wiring. In Fig. 20, a relay 100 is plugged vertically into the switch and a push-button switching assembly 110 is plugged horizontally into it. Specification 957,763 is referred to.
Patent GB-782981-A (GB)
Title: Improved method for producing corrosion-resistant coatings on molybdenum bodies and coated bodies so produced
Inventor: GOETZEL CLAUS GUENTER
IPC: C23C26/00
Filed: 1954-05-12
Abstract: 782,981. Coating with metals; powder metallurgy. SINTERCAST CORPORATION OF AMERICA. May 12, 1954, No. 13965/54. Classes 82(1) and 82(2) [Also in Group XXII] A method of producing a protectivesurfaced Mo body comprises coating the body with at least one intermediate diffusion barrier layer comprising either an intermetallic-compound-former selected from the group consisting of Fe, Ni, Co, and alloys thereof, or a complexcompound-former selected from the group consisting of C, B, Al, Si, boron carbide,.  silicon carbide, and mixtures (or alloys) thereof, merging with said body the barrier layer adjacent the surface thereof by heating in a non-oxidizing atmosphere at an elevated temperature then surfacing the coated body with a layer of a metal selected from the group consisting of Cr, Si, Al, Zr, and alloys thereof, and bonding the surface layer to the barrier layer adjacent to it by a diffusion heat treatment, at least one of the barrier layers serving to prevent diffusion of the Mo into the surface metal and diffusion of the surface metal into the Mo body. The intermetallic-compound-former (which may also be applied as a Fe-Ni-Co-Mo alloy) may be deposited by carbonyl decomposition, spraying, or electrolytically. The complex-compound-former (a) may be carbon and applied by carburizing the Mo body or carburizing a previously applied layer of Fe, Ni or Co (layers of Fe, Ni or Co can thus be alternated with layers of these metals in the carburized state), (b) may be silicon carbide or boron carbide and applied either as shown in Fig. 3, where a Mo sheet 19 is fed past a hopper 20 containing the carbide grains, or a mixture of carbide grains and Fe or Mo powder, through a furnace 21, the temperature of the sheet thus being raised to 1290‹-1830‹F., and is then passed between carbide rolls 22; or by heating the Mo body to 1290‹-1830‹F. and then spraying it with silicon carbide or boron carbide particles with or without an Fe or Mo powder admixture, or (c) may be applied by dipping, halide decomposition packimpregnation (in which the body is placed in a pack composed of the pulverized material and a halide gas is passed through the pack at high temperature), or electrolysis. The surface layer may be applied by vapour deposition or halide decomposition, and then oxidized by treatment in an oxidizing atmosphere. Buckets, blades, valves and nozzles of gas and steam turbines are referred to as being composed of the surfaced Mo.
Patent GB-982969-A (GB)
Title: A method of and apparatus for packing flowers, fruit, vegetables or other horticultural products
Inventor: KETTERER PAUL
IPC: B65B31/06
Filed: 1963-04-08
Abstract: 982,969. Packaging machines. EXPA A.G. April 8, 1963, No. 13966/63. Heading B8C. A fusible bag containing goods such as flowers, fruit or vegetables is clamped on a nozzle 5 by which it is filled with gas under pressure, and then heat-sealed between the nozzle and a further clamping means 7 which relieves the pressure on the seal until the seal has set. The nozzle clamps 4a, 4b are of a yieldable material to ensure a good seal with the nozzle which is preferable flat and consists of fine capillary ducts surrounded by a hard elastic material. The bags are supported on trays 3 which are moved by a rotor 1 around a circle 9 to stations A, B, C where the nozzle 5 is clamped at 4a on to the bag which is then filled with gas and heat-sealed after being temporarily clamped at 7, and finally tipped off the tray due to a depression in the ring 9 at C. Alternatively, the tray 3 may remain stationary and the clamping and sealing means may swing over the tray. The heat seal may be cooled by compressed air. The pressure of gas in the bag may be controlled by a valve.
Patent GB-1429130-A (GB)
Title: Control of flux injection in steelmaking vessels
IPC: C21C5/52
Filed: 1974-03-29
Abstract: 1429130 Operating metallurgical converters USS ENGS & CONSULTANTS Inc 29 March 1974 [30 March 1973] 14038/74 Heading F4B Apparatus for supplying flux, e.g. lime, to a converter 210 comprises one or more pressurized supply lines the or each line incorporating a pressurized flux container, a valve between each container and its line, means for comparing the rate of flow of material from the container with a reference rate, and means for using the comparison to control the valve. As shown, the apparatus incorporates containers T1, T2 connected to pressure lines 22b, 22b<SP>1</SP> and having valves 30, 301 with controls 35, 351 discharging through injection nozzles 36, 36<SP>1</SP> and lines 46, 46<SP>1</SP> to a line 50 connected to the converter 210. Each container is supported by load cells 57 coupled to a measuring circuit 58 itself connected to a weight control unit 33 and a feed rate control unit 34. The latter contains known integrating and amplifying devices and transmits a signal to valve control 35 representing the difference between the measured weight of flux injected at any moment and the desired weight set by the operator, said control 35 actuating an electric motor 32 to adjust valve 30. The weight control unit 33 operates the valve 30 in a similar manner, but is based on the total weight of flux supplied. Oxygen from a source 2 provides the pressurizing gas and a pressure measuring unit 55 sends out a signal to the sequence control unit 20 and to a bypass valve 52. If the measured pressure falls outside a preset limit valve 52 is operated enabling direct passage of oxygen through line 6a to the converter 210 thus by-passing the flux containers. After the operator presses a start switch, sequence control unit 20 automatically supplies oxygen to the various parts of the apparatus and ensures sequential operation. By this means also containers T1 and T2 can be brought into operation successively to supply different fluxes in turn. The tanks are automatically refilled with flux when the tank pressure falls below a predetermined level. The apparatus may be applied to a bottom blown converter as shown, an electric arc steel making furnace (Fig. 10, not shown) an open hearth furnace (Fig. 11) a tilting open hearth furnace (Fig. 12) or a hot metal mixer (Fig. 13). The individual units shown diagrammatically in Fig. 1 are described in more detail in the indicated figures of the drawings.
Patent GB-1037335-A (GB)
Title: Encapsulated semiconductor systems
IPC: H01L23/488
Filed: 1964-04-06
Abstract: 1,037,335. Semi-conductor devices. SIEMENS & HALSKE A.G. April 6, 1964 [April 8, 1963], No. 14053/64. Heading H1K. In an encapsulated semi-conductor system the semi-conductor body 5 is mounted on a gilded plate 9 the material of which is substantially free of substances which would exert a doping effect on the body, the plate being mounted on a gilded electrical supply lead 2 which mechanically supports the system and being of a larger area than the area over which it is attached to the lead so that it dissipates heat generated in the system. The plate is made of molybdenum or of an alloy of iron, nickel and cobalt. The semi-conductor body is alloyed to the gilded plate, or to a metal coating which is itself alloyed to the plate at a temperature lower than the alloying temperature of the body with the coating. Alternatively, the body may be connected to the plate by a low-temperature solder. Emitter and base electrodes 11, 12 are attached to a mesa 10 and are connected to leads 3, 4 by gold wires 6, 7. The leads 2-4 are glass-fused into apertures in the encapsulation chassis plate or plinth 1 and are gilded with a gold layer substantially thinner than that deposited on the plate 9. The alloying of the semi-conductor body to the plate, and the connection of the wires 6, 7 by thermocompression to the leads 3, 4 and to the electrodes 11, 12 may be performed simultaneously with the aid of a hot stream of gas. A hollow cylindrical cap (not shown) encloses the system and is welded to the plinth 1.
Patent GB-130953-A (GB)
Title: Improvements in Tea Infusers.
Inventor: EDMONDS HENRY
IPC: A47G19/16
Filed: 1919-06-04
Abstract: 130,953. Edmonds, H. June 4, 1919. Infusers.-In a tea-infuser of the type comprising a perforated spoon-like utensil with a perforated hinged cover. The cover or the handle is provided with a spring clip which engages with the handle or with a projection on the cover to hold the coven in an open or closed position as desired. In the form shown, the clip h is attached to the cover g and is of the cross-section shown in Figs. 4 and 5, which show the clip as it is when the cover is closed and open respectively. The bowl is secured to the wire handle c by a tang b, the sides of which are rolled round the wires.
Patent GB-117353-A (GB)
Title: An Improved Combination Knife and Fork Implement.
Inventor: O'LOUGHLIN JAMES PATRICK
IPC: A47G21/06
Filed: 1917-09-29
Abstract: 117,353. O'Loughlin, J. P. Sept. 29, 1917. Table knives; table forks.-A combined knife and fork comprises a knife blade 2, to the outer end of which is riveted or otherwise secured a plate 3 provided with a number of fork prongs 1.
Patent GB-1223781-A (GB)
Title: Improvements in or relating to duct connecting devices
IPC: F16L29/04
Filed: 1969-03-18
Abstract: 1,223,781. Duct connectors. ETABS. GUIOT & CIE. 18 March, 1969 [18 March, 1968], No. 14131/69. Heading F2G. A duct connecting device comprises two coupling members 1a, 1b adapted to be connected to ducts A, B and each housing a preferably spring-loaded valve 2a, 3a; 2b, 3b. A locking and locating means comprising a sleeve 5 is provided for axial movement about one of the coupling members to bring the two free ends T of the coupling members la, 1b into engagement and into alignment. The free ends T which are partly defined by the outer surfaces of valve members 3a, 3b are plane. The sleeve 5 in its axial movement entrains the valve member 3a to urge the opposing valve member 3b inwardly of its coupling member 1b. In the construction shown the sleeve 5 is spring-loaded to its rearward position and, when urged forward to its coupling position, the sleeve does not entrain the valve member 3a until initial coupling has been effected. The coupling may be by complementary screw-threads, as shown, in which case a locking ring 16 is provided or by a bayonet type joint. Sealing rings 11, 14 are housed in the forward end of the coupling member 1a and in a groove in the valve member 3b, respectively.
Patent GB-1272365-A (GB)
Title: Spiral plate capacitor
IPC: H01G4/02
Filed: 1970-03-24
Abstract: 1,272,365. Capacitors. INTERNATIONAL STANDARD ELECTRIC CORP. 24 March, 1970 [2 April, 1969], No. 14217/70. Heading H1M. In a vacuum capacitor comprising two interwound spaced apart axially offset spiral plates with the spiral edges at the protruding ends each secured to a conductive end plate, to impart rigidity or regions remote from the supported ends there is provided bracing means between proximate outer turns of a plate. As shown, the outside turn of plate 15 extends beyond the end of plate 16 so that its end portion 25 can be welded to an adjacent inner turn of the same plate. Metal strip 26 is also welded to both turns. The end of turn 16 is formed with a tab 34 which extends through an opening 33 in plate 15 and is soldered to the next inner turn of plate 16. In the case of a variable capacitor, opening 33 is sufficiently long to permit the required relative axial movement of the plates. As an alternative to integral tab 34, a piece of dielectric material may be wedged between the turns or an insulating grommet may be provided in opening 33. The conductive end plates may close the ends of a ceramic cylinder enclosing the electrodes (Fig. 1, not shown).
Patent GB-1492407-A (GB)
Title: Battery container for portable battery-operated equipment
IPC: H01M2/10
Filed: 1975-04-08
Abstract: 1492407 Electrical connection INTERNATIONAL STANDARD ELECTRIC CORP 8 April 1975 [8 April 1974] 14323/76 Heading H2E [Also in Division H1] A battery holder accomodating two rows of cells 15-20 has a U-shaped leaf-spring 5, 6 at each end serving to connect the two rows of cells together at one end and to lead-out terminals 9 (Fig. 1, not shown) and 13 at the other. The leaf-springs are secured to the end walls of the compartment, e.g. by a rivet and a post 14 so that the outer, free end of each spring bears on the end of one of the rows to press the cells together and into contact with the bowed inner part of the other spring. One lead-out terminal (9) is connected to the spring 6. The other, 13, is connected by a wire 12 to a rivet 11 mounted on the free end of the spring in an insulating bush and pressed against the terminal of cell 15. The battery holder may be a recess in a piece of portable electrical equipment, or it may be a separate plug-in unit.
Patent GB-549445-A (GB)
Title: Improvements relating to machine tools
IPC: B23D3/02
Filed: 1942-07-16
Abstract: 549,445. Planing-machines. BERRY & CO., Ltd., H., and CORIN, P. G. July 16, 1942, No. 14386. Divided out of 549,422. [Class 83 (iii)] A hydraulically-operated machine tool as described in Specification 549,422, for cutting internal longitudinal grooves or splines in a gun-buffer cylinder 16, is constructed with a pivoted cutter bar 2 which is pressed by a spring 3 into contact with a feed cam 4, the cam 4 being mounted inside the cylinder 16 and formed with a roller 10 engaging a profile bar 5 to govern the feed position of the tool during its reciprocating motion. The feed cam is formed on a long bar 6 hinged at 7 and formed with a screw 4a for engaging a nut 9 which is operated by bevel gearing 25, 26, Fig. 2, and a handle 27 at the completion of each cutting- operation. An adjustable indexing disc 28b co-operates with a fixed pointer on a disc 28a to enable the nut 9 to be rotated to the required extent. The cylinder 16 is mounted as described in Specification 549,422, and the motion of the cutter is controlled and the machine automatically stopped in the same manner as described in the Specification.
Patent GB-143404-A (GB)
Title: An improved support for electric incandescent lamps
IPC: F21V21/14
Filed: 1919-06-06
Abstract: 143,404. Johansson, J. P. June 6, 1919. Supporting.-An electric lamp is suspended by a cord or wire 7 passing over a guiding-ring 6 at the end of a telescopic arm 4 which may be adjusted in any direction by a universal joint 2, 3. The slack in the wire is taken up by a weight 8 and guiding-pulley 9. The two axes of rotation of the universal joint are arranged relatively to one another and to a guiding-pulley 10 moving about an axis 15 so that the conducting-wire only turns about its own longitudinal axis when the universal joint rotates about an axis 16.
Patent GB-201684-A (GB)
Title: Improvements in or relating to starting and controlling apparatus for electric motors
IPC: H02P1/06
Filed: 1922-05-23
Abstract: 201,684. Railing, A. H., Garrard, C. C., and Wilson, W. May 23, 1922. Controllers with auxiliary switches.-A master controller for contactors of a motor control system is composed of separate contact drums B, C, the drum B controlling line contactors and being fast on the spindle, and the drum C controlling accelerating contactors being actuated by a lost motion connection D, E, whereby the motor circuit is always broken at the line contactors.
Patent GB-687425-A (GB)
Title: Improvements in or relating to stabilized vinyl resin compositions
IPC: C08K5/098
Filed: 1950-06-09
Abstract: Vinyl halide resins are stabilized against heat and light by the addition of 0.25 per cent to 15 per cent by weight of a basic lead phthalate, e.g. monobasic PbO.Pb.C6H4(COO)2 and dibasic 2PbO.PbC6H4(COO)2. 1/2 H2O.  The resin include polyvinyl chloride and copolymers of vinyl chloride with vinyl acetate, ethyl and methyl methacrylates, and vinylidene halides.  The stabilizers are preferably added before or during milling of the ingredients which may include plasticizers such as dioctyl phthalate and conventional additions.