baber/WOPTO huggingface dataset:
Patent GB-575490-A (GB)
Title: Improvements relating to steam traps
IPC: F16T1/34
Filed: 1943-11-25
Abstract: 575,490. Steam traps. BRADLY, M.F. Nov. 25, 1943, No. 19703. Convention date, Oct. 27, 1942. [Class 64 (ii)] [Also in Group XXIX] A steam trap of the kind in which a valve opens to release condensate but closes against steam, comprises a casing having an upper chamber 10 housing a valve disc 11, and a lower chamber 13 of lesser diameter providing a valve seating 13a. The inlet port 15 is arranged centrally of the chamber 13, and the exhaust port 19 at one side and at a slightly lower level than the seating of the inlet port, whereby a constant communication is provided between port 19 and chamber 13. Alternatively, the port 19 may engage the valve in closed position, a bleeder passage being provided at the top of the tube 18. The weight of the valve and the size and position of the ports are so chosen that the valve rises to a position of equilibrium when water is passing, the pressure in the chambers 10, 13, being lower than in the port 16. If steam passes, pressure rises in the chamber 10 and the valve closes. A bleeder passage 23 in the valve connects chambers 10, 13.
Patent GB-440726-A (GB)
Title: Improvements in or relating to loudspeakers and the like
IPC: H04R1/20
Filed: 1934-07-04
Abstract: 440,726. Horns. GLEN, R. R., Villa Bergeronnettes, Anglet, Basses - PyrÚnÚes, France. July 4, 1934, No. 19709. [Class 13] [See also Group XXXIX] For varying the tone-quality of a cone-type loudspeaker, horn, or hooter, a composite disc is mounted axially within the cone, the disc being adjustable in area and movable towards or away from the apex. As shown, the disc is in the form of an iris diaphragm 10, 12 controlled by the hand wheel 19, and its spindle 17 is mounted in a screwed sleeve 18 which may be moved axially by turning the hand wheel 20. The movable plates 10 may be of soft aluminium to reduce resonance. Specification 440,041, [Group XXXIX], is referred to.
Patent GB-214149-A (GB)
Title: Improvements in apparatus for indicating the level of liquid in boilers, tanks or other receptacles
IPC: F22B37/78
Filed: 1923-08-01
Abstract: 214,149. Clench, C. Aug. 1, 1923. Indicators, electric.-For indicating the level of liquid in a boiler, tank, &c., the liquid is admitted to a suspended container, through a nozzle 2, and by its weight varies the resistance of an indicating circuit. The container is suspended by a rod 6 supported by a spring 13 which is carried by an adjustable support 17 mounted on a bracket 4. When the quantity of liquid in the container 1 varies due to the change of level in the boiler &c., the rod 5 moves a contact 27, carried by a pivoted lever 26, over a resistance 21 in the circuit of an indicating instrument. When used for indicating the level in a boiler, the steam space of the boiler is connected with the container through a nozzle 3. The lever 26 is adjusted to the horizontal position by the support 17 when the level in the boiler is normal. The nozzle 3 is stoppered or omitted when the container is used in conjunction with the tanks. In this case the container may have a valve and the lever 26 may be adjusted to a horizontal position for normal conditions by opening the valve to allow escape of compressed air. A recording apparatus may be included in the indicating circuit.
Patent GB-143445-A (GB)
Title: Process of retreading tires
IPC: B29D30/54
Filed: 1919-08-12
Abstract: 143,445. Goldberg, S. H. Aug. 12,1919. Vulcanizing, cores for; india-rubber &c. adhesives and solutions.-In processes for repairing worn tyres, of the kind in which the tread is removed and a new tread applied and vulcanized in position, the worn tyre body is cleaned, a rubber cement is applied inside and outside, a breaker strip impregnated with vulcanizing rubber cement is placed outside, a rubberized fabric treated with vulcanizing rubber cement is placed inside, a new tread is applied over the breaker strip, and the parts are wrapped tightly together and vulcanized. The inner surface of the new tread may be treated with vulcanizing rubber cement, and the external surface of the tyre may be coated with powdered soap stone and water, glycerine, or alcohol before being wrapped. An inner air-tube comprising a thin sheet of vulcanizing rubber on its outer periphery, an asbestos fabric on its inner periphery, and a helically wound rubber fabric containing a vulcanizing agent, may be inserted in the cover before the breaker strip is applied. The rubber cement may consist of 10 per cent rubber and 90 per cent benzol to which is added sufficient sulphur for vulcanization. Instead of the rubber cement, a low boiling point petroleum naphtha may be substituted, and instead of all or part of the rubber, an oxidized artificial asphalt made from petroleum residue may be used.
Patent GB-780012-A (GB)
Title: Improvements in or relating to the formation of hermetic seals between metallic parts
Inventor: KREUCHEN KARL HEINZ
IPC: H01J5/28
Filed: 1954-07-07
Abstract: 780,012. Welding by pressure; soldering; jointing by stamping. ELECTRIC & MUSICAL INDUSTRIES, Ltd. June 20, 1955 [July 7, 1954], No. 19832/54. Class 83 (4). [Also in Group XL (a)] In an article having an hermetic seal between metallic surfaces the seal comprises indium diffused into each of the surfaces. One part of an electron discharge device comprising a glass portion 1 sealed to a metal, e.g. " Kovar " (Registered Trade Mark) sleeve 2 in turn sealed to an annealed copper ring 4 is sealed to the other similar part by fitting the ring 4 of the one part into the flanged copper ring 5 of the other part with an indium ring 9 in a groove in the ring 5. The indium ring contacts the ring 4 and the ring 5 rests on a tool 11. A tool 12 with a concave edge 13 is pressed downwardly to deform the flange 8 as in Fig. 2 forming at the same time a cold pressure welded joint between the indium and the copper. Instead of using the indium ring an indium strip may be used for one or both of the copper rings may be indium plated. In a modification a similar joint is made in a cavity resonator device. The joint may be heated to 600 ‹ C. when an indium-copper alloy is formed. The seal may be made between aluminium surfaces.
Patent GB-425812-A (GB)
Title: Improvements in economisers or water heaters heated by flue gases
IPC: F22D1/26
Filed: 1934-07-07
Abstract: 425,812. Plate heat - exchangers. ROSENBLAD, C. F., Sodertalje, Sweden. July 7, 1934, No. 19965. Convention date, July 18, 1933. [Class 64 (iii)] An economizer or water heater comprises a pair of spirally-wound plates forming channels 3, 4 for water and flue gases respectively, and arranged in a casing having inlet and outlet ports 13, 14 for the gases and inlet and outlet connections 7, 12 for the water. To promote heat transfer, gills 15 secured in position by aluminium or copper-bronze cement are placed in the gas channel 4 during the winding of the plates. The ends of the water channel are sealed by strips of metal 5 welded to the plates. The water admitted through the connection 7 flows in a spiral path to the upper space 8 of the central drum on which the plates are wound and thence into the lower space from which it flows outwardly to the connection 12.
Patent GB-639384-A (GB)
Title: Improvements in or relating to tables, trolleys or the like
IPC: A47B31/02
Filed: 1948-07-27
Abstract: 639,384. Stands ; furniture combinations. HAWKINS, L. G., and HAWKINS & CO., Ltd., L. G. July 27, 1948, No. 19998. [Class 52 (iii)] A food-warming stand as described in Specification 617,410 has the side and end walls of the heating chamber flanged outwardly which flanges are arranged to project into tubular legs through slots which serve to assemble the walls together and to support the chamber. As shown the walls 6, 7 of the heating chamber have flanges 27 on their vertical edges which flanges enter slots 46 in the tubular legs 1 the length of the slots corresponding to the depth of the walls 6, 7. The flanges 27 may be locked in position within the legs 1 partly by their shape and partly by plugs 29 which may be secured in the legs 1 by screws 30 an extension 31 of which serves to hold in position stops 24. The plugs 29 may extend above the legs 1 and serve to position tubular handles 5. The lower edges of the walls 6, 7 are inwardly flanged at 10 to which a bottom 8, to close the chamber and serve as a support for the heating element 15, is bolted. The upper edges of the walls may also be flanged at 11 the meeting edges of the flanges 11 being closed by a flexible strip, the flanges or parts they support serving as supports for the cooking pots 13. Table flaps 20, 21, hinged at 22, may be provided together with a tray 25 supported by the lower members 2, 3.
Patent GB-305106-A (GB)
Title: Improvements in method of and apparatus for heating materials
IPC: C10B49/16
Filed: 1927-07-28
Abstract: 305,106. Morgan, J. S. July 28, 1927. Metal-heating furnaces; cooling charges.- Materials are heated by mixing them with hot metallic shot, and then separating the shot. The shot is heated by direct contact with furnace gases in a container 8, Fig. 1, and is fed into a rotating or rocking chamber 3, along with a definite proportion of the material under treatment supplied through a hopper 1. The shot passes into a compartment 12 and is fed by buckets 13, while the material is fed by buckets 14. Powdered materials thus treated pass into a funnel 16, while the shot falls into a shoot 18. The separation may be effected magnetically, or by blowing with a narrow horizontal jet of gas.
Patent GB-1395212-A (GB)
Title: Electric machines especially three-phase generators for motor  vehicles
IPC: H02K1/18
Filed: 1972-05-01
Abstract: 1395212 Adjustably securing stator cores in electric machine housings ROBERT BOSCH GmbH 1 May 1972 [28 June 1971] 20067/72 Heading H2A In an electrical machine, e.g. a 3-phase generator 10 for a motor vehicle, having a stator core 16 and a housing comprising a pair of, e.g. cup-shaped bearing plates 12, 13 by which a rotor is rotatable inside the stator core, the stator core has a part, e.g. a ring 17 which projects radially outwardly beyond the outer diameter of a stack of laminations forming the core and into a cylindrical gap between the two bearing plates, the stator core prior to the part being clamped between the bearing plates having, in the absence of radial locating means for the stator, a degree of freedom of radial movement between itself and the bearing plates in order that the core may be adjusted radially to establish a substantially uniform radial air gap between the stator and the rotor, the part when such adjustment has been effected being clamped between the bearing plates which convey a force frictionally locking the core to the plates. Whilst as shown the ring 17, of either magnetizable or non-magnetic material, is disposed mid-way of two core halves 16a, 16b, e.g. of edgeway wound laminations, it may alternatively be disposed either at the end of, or spaced from the end of, the core. After riveting the laminations together by rivets 16c the air gap 17a left by the ring may be removed or reduced by pressing the laminations together (Fig. 3) or, alternatively, the ring may, Figs. 5 and 6, have teeth of either the same size or smaller than those of the laminations. The ring may be a core lamination but of greater outside diameter. The bearing plate clamping surfaces may be machined or embossed to increase the frictional forces, the stator may be spotwelded to the housing, and the space therebetween may be filled with plastics material, after the adjustment.
Patent GB-482098-A (GB)
Title: Improvements in or relating to kinematograph film projectors which are designed for stationary projection and/or reverse movement of the film
IPC: G03B15/08
Filed: 1937-07-20
Abstract: 482,098. Kinematograph projectors. SIEMENS & HALSKE AKT.-GES. July 20, 1937, No. 20101. Convention date, July 24, 1936. [Class 97 (i)] In projectors controlled by a master member for stationary projection and /or reverse movement of the film, the latter is protected from heat from the lamp by a screen moved into position by operation of the master member, and returned to its inoperative position by the driving mechanism of the projector. As shown a plate 1, which may be integral with the projector or a separate constructional part, has an aperture in the projection beam and bears a sliding plate 3 having apertures 9 10, 11 for forward, stationary and reverse projection respectively, the aperture 10 bearing a heat filter. A master comprising a lever 6 carrier on a pin 7 connected to a switch in circuit with the driving motor, is also connected by a pin and slot 4, 5 to the plate 3. A heat screen 13, pivoted at 12 has a projection 17 engaging a slot 15 in a lug 16 carried on a ring 14 engaged by friction discs 20 on a shaft 18 of the projector mechanism. In operation, if a change from stationary to reverse projection is to be effected the lever 6 is depressed, moving the plate 3 downwards and simultaneously moving the shutter 13 over the aperture in the plate 1 by engagement with a pin 22 on the plate. Completion of the movement of the lever 6 starts the motor which, by virtue of the friction discs 20 pivots the screen 13 out of the beam. A stop 23 is provided to move the screen into the beam. The plate 3 may be pivoted.
Patent GB-1334875-A (GB)
Title: Process for treating a ferroelectric crystalline body
IPC: H01G7/02
Filed: 1971-04-19
Abstract: 1334875 Light modulators WESTERN ELECTRIC CO Inc 19 April 1971 [22 Jan 1970] 20154/71 Heading H4F [Also in Division H1] A process is disclosed for treating a crystalline ferroelectric body prior to poling in which the body is placed in an environment such that positive ions from the environment can diffuse through the body when the body is subjected to an electric field of between 100 and 2000 volts/  cm. and the temperature is maintained above the Curie temperature, and preferably above 600 C. The process is applied to filled tungstenbronze like crystals of specified ranges of filling and of crystal axis ratios, including Ba 4 Na 2 Nb 10 - O 30 , (Ba, Sr) 4 Na 2 Nb 10 O 30 , Sr 4 K 2 Nb 10 O 30 , K 6 Li 4 Nb 10 O 30 , Na 6 Li 4 Nb 10 O 30 , K 4 Na 2 Li 4 Nb 10 - O 30 , or any of these crystals containing partial substitution of Ta for Nb, or mixtures thereof, and is stated to reduce the time required for subsequent poling, by reducing the resistance to polarization reversal of electrons trapped at lattice defects by the combination of the diffusing positive ions with the latter. The preferred positive ions are H<SP>+</SP>, D<SP>+</SP>, and T<SP>+</SP>, of which H<SP>+</SP> may be provided by the electrical decomposition of water vapour present in an ambient air atmosphere, but reference is also made to the use of Pt<SP>+</SP>, Ag<SP>+</SP>, Au<SP>+</SP>, Na<SP>+</SP>, Tl<SP>+</SP>, and Li<SP>+</SP>. Poling may be accomplished immediately subsequent to the treatment by cooling through the Curie temperature while maintaining the electric field. The processed material may be employed in electro-optic, non-linear frequency doubling, parametric, and piezoelectric applications.
Patent GB-853760-A (GB)
Title: Apparatus for producing sliced food in weighed batches
IPC: B26D7/30
Filed: 1959-06-12
Abstract: 853,760. Slicing in batches. CASHIN Inc. June 12, 1959 [June 30, 1958], No. 20241/59. Class 28 (2) A pre-determined weight of overlapped slices are cut off a food block 14, and fall onto a weighing conveyer 50 which then stops the feed of the pusher 15, the batch of slices then passing to a ribbon conveyer 32 at the end of which an operator lifts them off and places them on a cardboard support which is then placed on another conveyer 34 for conveyance to a wrappirig machine. The slicing knife is an eccentric disc the smaller diameter part of which allows feed through of the block by the hydraulic pusher 15 for the next slice. The top run of the weighing conveyer 50 may be adjusted longer to take more slices and so a heavier batch, before the pusher feed is cut off. The weighing machine 35 Fig. 13 controls the various operations of electrical controls and solenoids.
Patent GB-1217761-A (GB)
Title: The transfer of current between a common normally-conductive conductor and a number of electrically parallel superconductor current-carriers
IPC: H01F6/06
Filed: 1968-04-29
Abstract: 1,217,761. Electric couplings. SIEMENS A.G. 29 April, 1968 [29 April, 1967], No. 20311/68. Heading H2E. Electrical connection between a plurality of superconductors 1 and a common normally conductive conductor 5 is established by means of a like plurality of intermediate normally conductive conductors 2, an end of each superconductor 1 being embedded in an end of an intermediate conductor 2 in a cooling chamber 3 supplied with liquid helium at a temperature below the transition temperature of superconductors 1; from chamber 3 intermediate conductors 2 extend separately through insulation 11, e.g. polyethylene or nylon, their other ends being soldered to conductor 5 and being cooled in the connection region, by gaseous helium passing through a cooling block 6, to a temperature higher than that of cooling chamber 3. Conductor 5 is in turn connected to a further normally conductive conductor 8, which is cooled to progressively higher temperatures by liquid nitrogen at 9 and water at 10. Intermediate conductors 2 are identical and have resistances at least ten times that of the total resistance along their respective superconductors 1. Conductors 2, 5, 8 are made of high-purity Al. The cooled regions up to region 9 are enclosed in a vacuum jacket 21 enclosing a radiation protection jacket 22 and layers 23 of crinkled Al-coated polyethylene terephthalate foil. In a modification (Fig. 2, not shown) central portions of intermediate conductors 2 are cooled in an additional cooling chamber by, e.g. liquid hydrogen or cold helium gas; such portions may be provided with cooling vanes. The invention is described with reference to making connection to a cable comprising 127 superconductors, and may also be applied to superconducting coils and machines.
Patent GB-591462-A (GB)
Title: Improvements in or relating to electrical signalling systems
IPC: G05D3/12
Filed: 1944-10-20
Abstract: 591,462. Repeater-compass systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and SIMPSON, L. M. Oct. 20, 1944, No. 20313. [Class 40 (i)] A repeater-compass geared to a shaft 17 is controlled in accordance with the positions of three signal receivers 12 ... 14 each of which controls the primary member 25, 24, 26 of a follow-up switch, the secondary members being geared together and to shaft 17 with the aid of Maltese cross gearing. An intermittent type of gearing is not essential. The receivers are of the resultant field type with permanent magnet rotors and have 12 stopping positions and their steps correspond respectively to 3, ¢ and 30 degrees of movement of the master compass. They are controlled by connecting up three wires in various combinations by means of cam-operated switches. When the error of the repeater compass is more than 30 degrees, a circuit is made over segment A or B of the secondary member of the coarse follow-up switch, Fig. 2, for the corresponding field winding of the driving motor, the armature being permanently connected up. The field windings are shunted by non-linear resistances. When the primary member of the switch leaves segment A or B it extends the driving circuit over segment C to the medium follow-up switch which controls the motor in the same way and then transfers control to the fine switch. When that switch reaches its C-segment, the field circuits are disconnected and the armature is shortcircuited to bring the motor to rest. Lamp 46 is lit at the same time to show that the repeater has reached the position of correspondence. The system may include a variation setting corrector.
Patent GB-1388079-A (GB)
Title: Apparatus and method for processing suspensions containing fibrous material
IPC: B01D33/073
Filed: 1973-04-30
Abstract: 1388079 Rotary press filter IMPROVED MACHINERY Inc 30 April 1973 [15 May 1972] 20389/73 Heading BID  Fibrous suspension is delivered by pipes 160 to arcuate spaces defined between respective contra-rotating filter drums 142, 144 and their fixed baffles 164 and pivoted baffles 170, baffles 170 being urged towards the drums by delivery of washing liquid through pipes 184 to spaces 176, the liquid washing the filter cake where it passes beyond the free ends of baffles 170 and the washed cake being finally pressed between the drums at 150, scraped therefrom by blades 152 and removed from the housing by screw 156. Baffles 170 have jacks 182 which may urge them continuously towards the drums or merely raise them before the process begins. Additional pressing baffles 1 and 6 may be urged upwards by jacks 190. Baffles 170 are reinforced by ribs 178 over their leading parts and coated with P.T.F.E. over their trailing parts. Baffles 164, 170 together enclose 80 to 140 degrees of their respective drums. Sprays 158 wash the drums downstream of blades 152. Drums may be movable laterally to vary the nip width.
Patent GB-205592-A (GB)
Title: Improvements in wedge splitting and scarfing machines
IPC: C14B1/00
Filed: 1922-07-26
Abstract: 205,592. Freeman, L. G. July 26, 1922. Stationary-cutter apparatus. - A splitting- .machine for belts, sole-blanks, &c. of the type having a movable feed-roll operatively connected to the knife to vary the inclination of the latter, comprises adjustable means for compensating for the difference between the radial distances of the end of the knife and the connection to the roll from the axis of rotation of the knife. Leather is fed over a table 6 between rolls 4, 5 the lower of which is carried in pivoted arms pressed upwards by an adjustable spring 37 and mounted on a shaft 35 freely supporting a lever 32. The knife-holder 17 is pivotally held, by a shank 15, in a sleeve 12 adjustably supported by a screw 11 in lugs 10, 10<A> on the frame. The knife 20 is adjustably held in the holder 17 and is arranged so that the cutting edge of the knife extends from the under surface of the upper roll 4 to the upper surface of the lower roll 5, Fig. 5. An extension 25 of the knife-holder is pressed upwards by an adjustable spring 26 and contacts with a screw 30 threaded in an arm 31 of the lever 32 carried bv the lower roll shaft 35. The lower end of the lever 32 has a plate 42, rotatably adjustable by aid of a scale 48 in a bore 45 of the lever, which carries an inclined slot 43 co-operating with a bolt 46 screwed into the machine frame. In operation, as the roll 5 is lowered, the lever 32 is also lowered and is slightly turned on the shaft 35, this turning depressing the end of the knife by an amount to compensate for the lever 32 not being connected to the end of the cutting edge of the knife. This compensation is accurate only for one length of knife. To allow for different lengths of knife, the bolt 46 is eccentric with the boss 45. By these means, in cutting a length of scarf other than the normal, the knife is inclined by the lowering of the roll, by the slot 43 to connect the errors of the levers, and by the eccentricity of the bolt 46 for difference of knife length.
Patent GB-741631-A (GB)
Title: Improved rotatable pipe coupling
Inventor: EDGE STANLEY HOWARD
IPC: F16L27/08
Filed: 1953-07-23
Abstract: 741,631. Brake transmission couplings. CLAYTON DEWANDRE CO., Ltd. June 21, 1954 [July 23, 1953], No. 20502/53. Class 103 (1). [Also in Groups XXIV and XXVIII] In the braking system of a travelling crane, a tubular link 1, 2 arranged at the centre of the turntable and serving for manual operation of the brake, or to transmit fluid for pressure operation thereof, is in two relatively rotatable parts 1, 2. Sealing- rings 5 are provided between the two parts and thrust washers 12 on the part 2 engage a flange 11 on part 1 and are secured by screw-cap 6. Ports 15 are provided for pipe connections and a lubricator 18 is provided for the thrust washers 12.