baber/WOPTO huggingface dataset:
Patent GB-1348103-A (GB)
Title: Frequency detector
IPC: H04Q1/46
Filed: 1972-05-16
Abstract: 1348103 VF signal receivers INTERNATIONAL BUSINESS MACHINES CORP 16 May 1972 [1 June 1971] 22862/72 Headings H4R and H4K A V.F. receiver includes a band pass filter responsive to a particular signalling band and a further filter responsive to a frequency within the band so as to enable a voice immunity circuit which consists of a band stop filter responsive to all frequencies except those in the signalling band. The output of the immunity band stop filter is added to that of the signal band pass filter and affects the energy distribution of the resultant signal such that when it is passed through a limiter and subsequently applied to the further signal filter, the signal frequency, in the presence of other frequencies, has an amplitude below the latter's threshold and thus no significant output is provided by the receiver. As described a valid signal has components in two bands A, B, these being passed by band pass filters FA and FB respectively when keyed-up by a calling telephone subscriber PT who is connected to an exchange network and to a V.F. signal receiver and an amplifier via a hybrid TD. The particular frequencies within the two bands are detected, after passage through amplitude limiters LA, LB, by filters FA1-FB3 so as to enable an AND gate E and thus bring-up a relay R. The latter disconnects the caller's appearance on the network by opening KT thus preventing spurious exchange signals from affecting the operation of the receiver, disconnects dial tone from source TN, and connects the output of a band stop filter FN responsive to all frequencies except those in bands A and B to the outputs of filters FA and FB by closing switches KA, KB. If FN produces any significant output, the filters FA1- FB3 due to their minimum threshold requirements thereupon cease to supply any output signals. Otherwise after a delay of 25 msecs. (indicative of the occurence of a valid signal) produced by delay DL1, gates EC and selected nose of E1 to E8 are opened to insert the binary value of the transmitted digit into registers R1- R8. Another delay circuit DL2 serves to time an interdigital pause period since it maintains registers R set for a period of 30 msecs. following cessation of a valid signal input. The contents of the registers are read by a centrally controlled scanner. Reference has been directed by the Comptroller to Specification 1,025,216.
Patent GB-828417-A (GB)
Title: Improvements in and relating to reciprocating pumps and pumping installations
Inventor: LEECH LAURENCE ARTHUR
IPC: E03B3/12
Filed: 1958-07-17
Abstract: 828,417. Mills; jetting apparatus. MILLARS MACHINERY CO. Ltd. July 17, 1958, No. 22935/58. Classes 68(1) and 85 [Also in Group XXVIII] Pumping apparatus, particularly for water supply purposes, comprises a pump (see Group XXVIII) whose cylinder 1 extends to a body 11 to which is attached a soil piercing device 16. The device 16 is provided with a non-return valve 18 and a nozzle 20 having serrations 21. The body 11 is provided with apertures 13 which lead from flutes surrounded by a filter screen 15. Water supplied through the pump cylinder 1, from which the piston and inlet valve are removed, issues as a jet from the nozzle 20 and the device sinks into the ground in which position the pump is reassembled and water passing through the filter is pumped to the surface.
Patent GB-239889-A (GB)
Title: Improvements in or relating to the reactivation of adsorption media by treatment with heated or superheated vapours
IPC: C01B31/08
Filed: 1925-09-14
Abstract: 239,889. Mond, A. L., (Metallbank und Metallurgische Ges. Akt.-Ges.). Sept. 14,. 1925. Gases, separating mixtures of. - The heat economy in the process of reactivating solid adsorption media by means of heated or superheated vapours, e.g. superheated steam, is improved by utilizing the heat of condensation of the vapours leaving the reactivating vessel for generating fresh vapours. In the arrangement shown, carbon charged with benzene is reactivated, and the benzene is recovered by passing superheated steam through the vessel a containing the carbon. The mixture of vapours leaving the vessel a is condensed in the evaporator b, producing an equivalent amount of steam which is compressed and superheated by an ejector apparatus c and returned to the vessel a. The condensate from the evaporator b passes into the cooler d, cooled by water which passes on to the evaporator b. In a modification, the reactivation is effected under reduced pressure, the ejector apparatus being replaced b a compressor interposed between the vessel a and the evaporator b, and a superheater through which the steam passes. on its way to the vessel a.
Patent GB-1008474-A (GB)
Title: Improvements in electrical induction coils
Inventor: HUMPHRIES JOHN DAVISON
IPC: H01F41/12
Filed: 1963-06-08
Abstract: 1,008,474. Electric coils. GARRINGTONS Ltd., & PLASTIC COATINGS Ltd. Aug. 17, 1964 [June 8, 1963], No. 22941/63. Headings H1P and H1T. A coil having a hollow conductor, especially an induction heating coil, but also a transformer winding or a solenoid, is insulated by immersing it while hot in a fluidized plastics bed. The insulating material may be nylon, epoxides, P.T.F.E. and the like. In the case of an induction heater coil, the coated coil may be covered with asbestos tape and refractory material. The coil is oven-heated.
Patent GB-1042433-A (GB)
Title: Improvements in and relating to the manufacture of semi-conductor devices
IPC: H01L23/485
Filed: 1963-06-10
Abstract: 1,042,433. Transistors. PHILCO CORPORATION. June 10, 1963 [June 8, 1962], No. 22994/63. Heading H1K. A silicon transistor is made by diffusing acceptor impurity into a high resistivity N-type silicon wafer to form a P-type base zone, subsequently diffusing donor material into part of this base zone to form an N-type emitter zone and into part of the original wafer to form an N+ zone containing at least 10<SP>20</SP> donor atoms/c.c. at its surface and then depositing aluminium simultaneously on the emitter and base zones and the N+ zone and alloying it thereto to form ohmic contacts. In a preferred method a plurality of transistors are formed simultaneously on a single wafer using silicon oxide masking to define the areas into which diffusion takes place. The masking process is described in detail. The base diffusion process is in two stages the first in the presence and the second in the absence of a boron oxide source. The second diffusion process is similar but uses a phosphorus pentoxide and silica diffusant source. Aluminium is then vapour deposited to make contact with the various zones through holes etched in the oxide masking. It may either be deposited through a mask only on strips extending from the holes, or over the entire surface. In the latter event it is subsequently reduced to strips using a photolithographic and etching technique. Alloying is then effected under controlled conditions. The individual devices may be separated by sand blasting or where a common mounting is required the wafer is attached to a ceramic plate and the individual transistors electrically isolated by saw cuts.
Patent GB-633069-A (GB)
Title: Improvements in and relating to overload protective devices for liquid-insulated electrical apparatus
IPC: H01H75/04
Filed: 1946-08-06
Abstract: 633,069. Thermal switches; protective cutout arrangements. BRITISH THOMSONHOUSTON CO., Ltd. Aug. 6, 1946, No. 23300. Convention date, Aug. 6, 1945. [Class 38 (v)] A thermal switch suitable for the protection of oil-immersed apparatus such as transformers against fault currents and overload conditions, has an evacuated glass envelope 19 with a diaphragm 27 which acts as a pivot for an arm 26 carrying a contact 21. A toggle-spring 33 connects the end of an extension 32 of the arm 26 to the end of a bifurcated L-shaped member 34 which is pivoted by hinges 37 and has a projection 49 which bears against the end wall 44 of a fluid-containing bellows 38. This bellows is partly surrounded by a thermal lagging sleeve 67 to reduce the rate of heat transfer to the surrounding transformer oil and at its other end has an insulating seal 39 in which is fixed a rod 40. The portion of this rod 40 outside the bellows is screwed into a U-shaped support 50, whilst the portion within the bellows forms a support for, and one connection to, a heating coil 41, the other end of which is connected to the bellows. Connection is made from the H.T. bushing of the transformer to contact 20, through contact 21, arm 26, extension 32, a flexible lead 55, a spring- loaded contact-ring 54, bellows 38, heating coil 41, rod 40, U-shaped member 50 and,thence to the primary winding. When a fault occurs the current in the heating coil rapidly heats the fluid to its boiling point causing expansion of the bellows against a spring 56. The L- shaped lever 34 pivots on its hinge, causing the toggle-spring 33 to force the extension 32 upwards, so opening the contacts with a snap action to interrupt the circuit. A similar action takes place if the oil surrounding the bellows becomes heated due to a prolonged steady overload. Reclosure of the contacts occurs automatically when the bellows again contracts. Specification 564,058, [Group XXXVI], is referred to.
Patent GB-597445-A (GB)
Title: Improvements in or relating to the manufacture of capsules
IPC: A61J3/07
Filed: 1945-07-05
Abstract: In a method of producing capsules in which two ribbons of plastic material, e.g., gelatine, are separately and intermittently fed through a filling location at which they are brought in face to face contact to advance together, and whilst stationary, a filling substance is injected between them to distend each ribbon to a pocket-like formation, the ribbons being then sealed therearound by pressure, the faces of the ribbons to be brought into contact are heated by passing each ribbon over a heated surface.  Apparatus similar to Fig. 1A and 1B of Specification 597,057 is shown, the block 1 therein over which the ribbons are drawn being heated by electrical elements disposed in bores 18, 19.
Patent GB-305910-A (GB)
Title: Improvements in apparatus for withdrawing underground cables
IPC: H02G1/08
Filed: 1928-08-13
Abstract: 305,910. Hardingham, G. G. M., (Lancier, P.). Aug. 13, 1928. Hauling cables by reciprocation of a stocking.-A cable is withdrawn from a tube, channel, or other conduit by the reciprocation of a plaited wire stocking g which is slipped on to its end. The ring- shaped neck f of the stocking slides freely over the cable, and is pivotally connected to two connecting rods e, which are engaged by the pins of two crank arms d working in unison. During one half of each rotation of the crankshaft, the stocking will pull the cable, and during the other half the stocking will be pushed forward upon the cable to take a fresh grip of the latter. A chain wheel c on the crank-shaft is driven through a belt n by manual or motor power above ground. The chain wheel is mounted on an iron frame b secured to adjustable struts a which bridge the shaft or well. The frame b can be adjusted laterally. The crank pins are connected by tension springs h to a plate k mounted on an extension of the frame b. The withdrawal of the cable may be expedited by using two stockings, the one arranged in advance of the other and respectively connected to crank arms set at an angle of 180‹ to each other. An inclined frame l provided with two rollers m is used for guiding the cable in an upward direction. Stockings actuated by oppositely-disposed crank-arms may be applied to cables located in adjacent conduits.
Patent GB-222883-A (GB)
Title: Improvements in or relating to regenerative heating devices
IPC: F23M20/00
Filed: 1924-10-03
Abstract: 222,883. Forssbtad, N. R. Oct. 4, 1923. [Convention date]. Regenerators.-A regenerative heating device for transmitting heat from one fluid to another is described in connection with a furnace in which air for combustion is preheated by waste gases and comprises regenerating material' 1 having longitudinal passages and arranged in a casing 3 which communicates at each end with a waste-gas conduit 2. Within each end of the casing 3 is arranged a box 5 fitted with a pipe passing through the side of the casing and having an open inner side to the upper and lower edges of which are pivoted dampers 4 connected by an operating lever 6 and abutting against the ends of the material 1. Air is supplied to the right-hand box 5 and, in the position shown, flows through the upper part of the material 1 while waste gases pass in the opposite direction through the lower part; reversal is effected by lowering the dampers 4. The levers 6 are preferably connected to move simultaneously and may be intermittently or continuously operated. Packing to prevent leakage is arranged at the ends of the material 1 and at the points of contact between the dampers 4 and casing 3. In a modification a swinging box, open at its inner side and operated by a lever extending through the side of the casing 3, is substituted for the box 5 and dampers 4.
Patent GB-524198-A (GB)
Title: A pressure-casting furnace, especially for bearing metals
IPC: F27B14/00
Filed: 1939-01-23
Abstract: 524,198. Crucible furnaces; casting machines. MARTIN, K. Jan. 23, 1939, No. 23406. Divided out of 524,124, [Group XXII] [Class 51 (ii)] [Also in Group XXII] In a crucible furnace for melting metal for pressure casting a heatintercepting screen 13 is provided for cutting off radiation from the heating- elements and furnace lining when the metal in the crucible 1 has attained a predetermined temperature. The outer part of the screen consists of heatinsula ting material while the inner part 15 is of metal which absorbs heat from the crucible, to reduce the temperature o f the molten metal. The screen is moved into and out 'of operative position by hand, or by a ram which may be controlled by the thermostat 5. Pressure gas is supplied to the crucible by the pipe 2 and is distributed over the surface of the metal by a screen 6.
Patent GB-1047951-A (GB)
Title: Improved combustion method for agglutinant swelling coals with a high content of volatile substances, and apparatus for performing the same
IPC: F23L9/00
Filed: 1963-06-12
Abstract: 1,047,951. Solid fuel combustion apparatus. HOUILLERES DU BASSIN DE LORRAINE. June 12, 1963 [June 13, 1962; June 18, 1962], No. 23482/63. Heading F4B. Solid fuel is fed discontinuously by a ram 8 at one end of a grate 1, the major part of the combustion air being fed below this end of the grate, the amount of forming air fed below the grate decreasing towards the cinder discharge end of the grate, and secondary air inlets 38 being provided in the refractory roof 15 and side walls 14 of the combustion chamber. The end wall 17 of the combustion chamber is cooled by distribution passages 32 for the secondary air. A pneumatic ash-removal arrangement is provided. The Specification describes various arrangements of the primary and secondary air supply fans, and the ash removal blower, and includes several different forms of combustion chamber, one being mounted on wheels for removal from a boiler being heated, one having a single motor driving the ram and a common blower for all the air supplies, and also discloses an arrangement of a boiler furnace in a room next to. coal bunker and its associated coal conveyer.
Patent GB-1468662-A (GB)
Title: Improvements in or relating to crushing apparatus
Inventor: SMUDEK JAN FRANTISEK
Filed: 1973-05-17
Abstract: 1468662 Roller and breast mills METAL BOX Ltd 25 June 1974 [17 May 1973] 23495/73 Heading B2A Apparatus comprising a rotor 17 Fig. 1 surrounded by a restrictor viz a curved plate 32 to define a gap of radial width decreasing in the direction of rotation means on the rotor to urge material to be crushed into the gap and a restrictor having a crushing surface formed with ratchet-like teeth presenting a sloping surface for waste material to move towards a narrower or outlet end of the gap between the restrictor and the rotor, a series of shoulders preventing waste material from moving backwards. As described, the means on the rotor comprises the projections or pins 26 are in four sets with the leading face of each pin of larger diameter than the trailing face, Fig. 3. The plate 32 is pivoted at 33 has teeth 36, is biassed by springs 39 to permit yielding under overload, and has three grooves 41 to permit passage of the pins therethrough. A grooved backing block 29 is also provided. Comminuted material falls into a lined drawer 50, and waste to be comminuted is fed into a chute 46. Various arrangements of pins, are described viz:- offset Fig. 5, not shown; helical Fig. 7 (not shown); in V-shaped formation; and in any number; of unequal lengths, or different lengths; of square or rectangular cross-section; with flat leading edges, or of T-shape Fig. 13. The springs 39 may be releasable to remove obstructions and may be adjustable in pressure and the drive motor (23) Fig. 2, not shown, may be reversible. The springs 39 may be replaced by fluid-actuated resilient devices, e.g. an hydraulic ram controlled electrically in response to motor-overload current. The drawer 50 and chute 46 actuate microswitches to prevent motor operation when the drawer and chute are open.
Patent GB-773934-A (GB)
Title: Improvements in the manufacture of tubular elements
IPC: B21C37/29
Filed: 1955-08-16
Abstract: 773,934. Making pipe fittings. HUET, A. Aug. 16, 1955 [Nov. 5, 1954], No. 23572/55. Addition to 759,019. Classes 83 (2) and 83 (4). Forging.-In a modification or improvement of the method of manufacturing a branch aperture or nipple on a bent tube as disclosed in the parent Specification, the bent tube a has oblique or divergent limbs which offer the advantage of giving an increased passage section in the bent region where such passage is ogival in shape. The tube is slit along a straight line C, D in the region it is desired to obtain the branch aperture and the bent region is then heated and compressed between dies d<SP>1</SP> and d2 which apply a compression in the direction of the slit which opens during the compression, while the wall of the tube is driven back to form the lip g of the nipple. A mandrel k is introduced into the slit during the compression to calibrate the lip g and is applied against the bottom wall E of the bend which is supported in a fixed abutment l. To increase the height of the lip the mandrel is forced against the wall region E, thus reducing the increased wall thickness at this point and displacing metal towards the opening. This operation of driving metal back from the region E may take place before or after the dies d<SP>1</SP> and d<SP>2</SP> effect the compression. Finally, the divergent limbs of the bend a<SP>1</SP> provided with the branch aperture may be brought parallel to one another.
Patent GB-1310414-A (GB)
Title: Composition of matter
IPC: F16F9/00
Filed: 1970-05-15
Abstract: 1310414 Mouldable wax composition; lubricating oil composition MOL-EN CORP 15 May 1970 [19 May 1969] 23602/70 Headings C5F and C5W [Also in Division C3] A composition contains 5-45 wt. per cent of polyolefin, preferably polyisobutylene, with a M.W. greater than 120,000, 15-70 wt. per cent micro-crystalline wax with a drop point of 140-215 F. and 5-80 wt. per cent oil, e.g. one or more of peanut-, tall-, lubricating-, safflower-, neat's-foot-oil, or neutral blending stock. Preferably the M.P. of the wax is 60-100 C. and is present relative to the polyolefin in the ratio range 1À5 : 1 to 2À5 : 1. A lightweight aggregate, e.g. polystyrene, may be included. In making the composition the polyolefin is first worked, the molten wax added and the mix held at 150-300 F. for at least 120 hours. The oil is then added.
Patent GB-1433898-A (GB)
Title: Jacquard machines
IPC: D03C3/20
Filed: 1973-05-17
Abstract: 1433898 Jacquards SULZER BROS Ltd 17 May 1973 [19 May 1972] 23612/73 Heading D1E A double lift open shed Jacquard has draw knives 8, 9 that act on single hooks 14 with double nebs 26, 27 and a neb 28 cooperating with a member 31 having an open shed hook 29 and a lower shed hook 30. Patterning is effected by a blocking member 33 which prevents or allows a spring 43 to rise so that the hook is moved sideways or remains in its position (respectively) to be lifted or lowered by a respective draw knife or to remain on the open shed hook 29. The flexible member 33 may be bimetallic or electrically flexed. A second embodiment is described in which the lower shed hook is replaced by a disc 81 on the hook 14. Specifications 1433899 and 1433900 are referred to.
Patent GB-262877-A (GB)
Title: Improvements in or relating to electrical terminals or connectors
IPC: H01R4/50
Filed: 1925-09-22
Abstract: 262,877. Rowe, J. J. Sept. 22, 1925. Wire terminals ; couplings. - A terminal for electric leads comprises a stem of wire A bent at each end to form a hook or loop A', A<2>, and a sleeve B of insulating material sliding upon the stem. The hook &c. A<1> is flattened so as to fit within the enlarged part of the bore B<1> of the sleeve B. The end C<1> of a lead C is thus prevented from becoming detached from the hook A<1>.
Patent GB-692422-A (GB)
Title: Improvements in or relating to the production of pile fabrics
IPC: D04H11/00
Filed: 1949-09-13
Abstract: 692,422. Pile fabrics. SCHUELER, G. B. E. Sept. 13, 1950 [Sept. 13. 1949], No. 23653/49. Drawings to Specification. Class 142(iv) Pile fabrics are made by sticking to a backing yarns passing through supporting means, setting the adhesive, and then separating the backing and the supporting means and cutting the yarns. The supporting means may be perforated plates or may be elements having parallel rods arranged normal to the rods of similar adjacent elements, the rods forming a square mesh through which the yarns pass. Movement of one element across the face of the adjacent element causes the yarns to be gripped. The ends of the yarns may be folded back and the middle of the loops so formed attached to the backing. The backing may be a thermoplastic material or may be of rubber, pitch or resins, polyvinyl chloride, polyvinyl acetate, polystyrene, or synthetic rubber. A fabric such as hessian impregnated or coated with a thermoplastic material or with an adhesive may form the backing. Design can be produced by selecting appropriately coloured yarns at the initial threading stage. The pieces of pile fabric may be attached to a flexible sheet to form a carpet. According to the Provisional Specification, if a molten plastic material is used for a backing, the ends of the yarns are brushed with a carding brush; the abutting edges of the plastic backing of pieces of pile fabric positioned edge to edge may be fused together to form a carpet.
Patent GB-171468-A (GB)
Title: Improvements in stone-drills or augers
IPC: E21B10/14
Filed: 1920-08-13
Abstract: 171,468. Stapf, A., and Hundrieser, H. Aug. 13, 1920. Addition to 147,639. Bore-hole apparatus.-The auger bit described in the parent Specification is provided with one or more breaking-rollers rotatably mounted on the bit .adjacent to the bottom of the grooves or recesses between the teeth thereof. In one form a conical zoller 4, Fig. 1, is supported in bearings 5 formed in the end of a yoke-shaped member 7 rigidly connected with the body of the tool by means of screws 8, and in a modification, the bearings are resiliently supported by springs 6, Fig. 2. If two rollers are used, the second roller may be arranged on the opposite side of the auger bit with the roller tapering in the opposite-direction to the first roller, and the rollers may be provided with either transverse or longitudinal ribs. The contour or circumference of the rollers. may be so shaped that an intermittent or stepwise movement or rotation, and consequently a pushing or shocking effect, is obtained.