baber/WOPTO huggingface dataset:
Patent GB-274223-A (GB)
Title: Improvements in or connected with couplings for trough conveyers
IPC: B65G27/00
Filed: 1926-04-23
Abstract: 274,223. Mavor & Coulson, Ltd., Mavor, J. B., and Thomson, J. April 23, 1926. Jigging conveyers.-Adjacent sections A, B of a trough conveyer are coupled by the engagement of a link D pivoted at 6 in a plate 2 fixed to the section A with a member C pivoted at 5 in a plate 3 fixed to the section B. Each member C is provided with a socket 10 for a tommy bar by which it may be forced into and out of the locked position. A semi-circular part 4 on the end of the plate 3 takes into a recess in the plate 2. Specification 263,325 is referred to in the Provisional Specification.
Patent GB-462500-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J1/28
Filed: 1936-04-14
Abstract: 462,500. Thermionic cathodes. BRITISH THOMSON - HOUSTON CO., Ltd. April 14, 1936, No. 10747. Convention date, April 16, 1935. Drawings to Specification. [Class 39 (i)] A cathode consists of a porous body made from a mass of refractory metal powder rendered coherent by pressing and heating, the body being impregnated with an electron emissive material. In one form ammonium tungstate is reduced in an atmosphere of hydrogen : the tungsten powder so obtained is passed through a sieve of 40 mesh, coarse material being rejected ; the powder is further put on a 150 mesh sieve and the finer particles are rejected. The collected powder is pressed and heated and treated electrically in hydrogen to near its fusing temperature ; the resulting material is in the finished form of pellets or tubes. The porous body is now soaked in molten barilun hydroxide which is broken down by processing within the discharge tube wherein the electrode is to be used. The nitrate, nitrite, iodide, formate, oxalate, acetate, carbonate or other suspensions of barium may be used ; or the body may be impregnated by diffusion of the emissive material as a powder or vapour. Finer tungsten powder may be used. Electrodes as described are advantageously used in a lamp as described in Specification 449,862. Specifications 303,369, [Class 39 (i)], and 392,678 also are referred to.
Patent GB-1148874-A (GB)
Title: The production of carbon fibres
Inventor: JOHNSON WILLIAM
IPC: D01F9/22
Filed: 1965-03-15
Abstract: 1,148,874. Carbon fibres. NATIONAL RESEARCH DEVELOPMENT CORP. 15 June, 1966 [15 March, 1965], No. 10779/65. Heading C1A. Carbon fibres are produced by heating polyacrylonitrile fibres in a non-oxidizing atmosphere from ambient to a temperature of 1000‹ C. over a period of 2-24 hours whilst the fibres are held under a tension sufficient to cause the polyacrylonitrile fibres to elongate from their initial length so that the carbon fibres produced from them are of greater length than the original polyacrylonitrile fibres. Preferably the non-oxidizing atmosphere is a vacuum or hydrogen and the carbon fibres produced may be subjected to a further heat treatment wherein they are heated to a temperature of 1500‹ C. in not less than 2 hours followed by further heating to a higher temperature not exceeding 3300‹ C. in a non- oxidizing atmosphere, e.g. argon. The further heat treatment may be performed as a separate step and the fibres may be tensioned during this step so that they elongate even more during this treatment. The term polyacrylonitrile fibres is used in the Specification to also mean, copolymers or terpolymers of acrylonitrile with other monomers, e.g. methyl methaorylate or vinyl acetate, either alone or to which have been added polymers compatible with them, e.g. phenolic resins, or Friedel-Crafts condensates.
Patent GB-1190343-A (GB)
Title: Improvements in or relating to Non Return Valves
IPC: F16K15/02
Filed: 1968-03-08
Abstract: 1,190,343. Valves. GRUNDFOS A.S. 8 March, 1968 [9 March, 1967], No. 10844/68. Heading F2V. A non-return valve has a valve body 9 adapted to engage a circular seat 4 and guided by edges 8 of fixed radial plates 6 on which are formed webs 10 having guiding surfaces 11. A valve body recess 13 with guiding surfaces 13<SP>1</SP> co-operates with a fixed cylindrical guide 15 to centre the valve body when it moves towards its seat at an inclination thereto. The surfaces 11 co-operate with the periphery 14 of the valve to centre it when it moves away from the seat at an inclination thereto. In a modification the recess 13 is cylindrical and the guide 15 is a truncated cone.
Patent GB-1294602-A (GB)
Title: Improvements in electric power supply arrangements
IPC: H02P9/42
Filed: 1970-03-06
Abstract: 1294602 Automatic phase control CANADIAN GENERAL ELECTRIC CO Ltd 6 March 1970 [11 Aug 1969] 10846/70 Heading H3A A power supply arrangement comprises a rectifier 11 and a D.C. to A.C. inverter 16 connected between input and output terminals 10, 18, a synchronizing circuit 21 connected to the input, output terminals for producing an error signal dependent on the phase difference between voltages present at 10, 18 and control arrangement 20 for altering the inverter frequency in response to the error signal in a sense to reduce the phase difference. Signals derived from the input voltages and present at the secondary of transformer 39 are alternately gated via bidirectional switches 31-34 to a filter circuit 43, 44 by square wave gating signals derived from the output terminals and present at the secondary coils 29, 30. The output of the filter is a positive or negative voltage depending on the magnitude and sense of the phase difference. In the event of power failure, i.e. absence of signals at 10, a back-up battery 14 is automatically connected to the inverter 16 for maintaining the output voltages at 18. In case of faulty operation of the inverter, the input and output terminals are automatically interconnected by by-pass contactors 23.
Patent GB-274775-A (GB)
Title: Device for stopping railway-trains passing the alarming semaphore
IPC: B61L3/12
Filed: 1927-04-19
Abstract: 274,775. Jacoby, H. April 19, 1927. Track apparatus actuating signals on, and forstopping trains.-A warning signal is given on a train, or the steam is shut off or the brakes applied at a "danger" signal by a number of armatures d in parallel mounted on the underside of the locomotive and adapted when attracted by a magnet g on the track to close a local circuit on the vehicle to energize a warning device i from a battery k, or to stop the train. The magnet g is energized from a battery l when the signal-arm a is at " danger."
Patent GB-540696-A (GB)
Title: Improvements in and relating to gliders for furniture and the like
IPC: A47B91/06
Filed: 1940-06-26
Abstract: 540,696. Glider tips for furniture. UNITEDCARR FASTENER CORPORATION. June 26. 1940, No. 10915. Convention date, July 19, 1939. [Class 134] A glider for a hollow furniture leg or the like consists of a head in the form of a hollow cap clenched around a disc and attaching means which extend from the head and have a yielding loop for engaging the inside of the hollow leg. The attaching means are secured within the cap by being bent inwardly over the edges of the disc. In the form shown in Fig. 2, the gliding cap 3 is bent around the periphery of a disc 8 which is notched on opposite ends of a diameter to receive the bent-in extremities 15 of a substantially U-shaped retaining strip 13 of a yielding nature such as to be retained by spring action when inserted in the bore in the tubular metal or other leg.
Patent GB-166364-A (GB)
Title: Improvements in application valves for vacuum automatic railway brakes
IPC: B60T13/46
Filed: 1920-04-20
Abstract: 166,364. Hardingham, G. G. M., (Wittebolle, R.). April 20, 1920. Fluid - pressures. - The handle a of an application valve for automatic vacuum brakes is rendered detachable from the air-admission disc b, the means of attachment comprising a pair of lugs c disposed diametrically on the disc, across which the handle extends. The handle is provided with a squared aperture d for the ejector steam-valve spindle and may carry the operating-means f<1> for the auxiliary or partial application valve f mounted on the disc.
Patent GB-1031984-A (GB)
Title: A time division switching system
IPC: H04Q11/04
Filed: 1963-03-20
Abstract: 1,031,984. Automatic exchange systems. HITACHI SEISAKUSHO KABUSHIKI KAISHA. March 20, 1963 [March 22, 1962], No. 11075/63. Heading H4K. In a T.D.M. system each connection uses a pair of junctors, one for each direction, which perform time delays respectively equal in duration to a pair of integral numbers of timeslots which are mutually complementary with respect to the total number of time-slots in a cycle, the junctors being available to a plurality of T.D.M. highways. Different junctors give different delay times, providing the facility of time-slot interchanging in order to connect a calling trunk to a called trunk in a line-concentrator system, a junctor being chosen with a suitable delay time to connect with a vacant time-slot in the called trunk.
Patent GB-551448-A (GB)
Title: Improvements relating to work holders for use in drilling and like operations performed on rod, bar, strip or like material
IPC: B23Q3/00
Filed: 1941-08-29
Abstract: 551,448. Drilling &c. jigs. GRAY, C. A., and KOOPMAN, J. M. Aug. 29, 1941, No. 11079. [Class 83 (iii)] A drilling jig comprises a base 3 with tongues 5, 6 projecting into a slot 7 of a body part 1 provided with work locating means such as a V- groove 2. The parts 1 and 3 are secured together by a screw 4 and rotatably confine between them a flanged ring 8 threaded internally to engage segments of threads formed on rods 17, 18 sliding in holes in the body 1 and carrying a crosshead 16 fitted with an interchangeable drill bush 14. Rotation of the ring 8 by a handle 9 serves to clamp the work 15 by means of the bush. A laterally extending arm 22 carries an adjustable end stop 25 for the work. The jig is stated to, be applicable for use in tapping and countersinking and, according to the Provisional Specification, in broaching.
Patent GB-746921-A (GB)
Title: Dress pattern
IPC: A41H3/00
Filed: 1954-04-15
Abstract: 746,921. Garment patterns. McCALL CORPORATION. April 15, 1954 [Oct. 14, 1953], No. 11118/54. Class 141. In a garment pattern which is adjustable for length and width by folding over or by cutting and spacing apart, the positions at which such adjustment should be effected are indicated by lines a-b, m and n and scales 1-4 are provided to measure the adjustment.- When the length is to be increased, the pattern is cut along a broken line a, c, d, e, f, b.
Patent GB-309498-A (GB)
Title: Improvements in or relating to the manufacture of organic products
IPC: C07C31/20
Filed: 1929-04-10
Abstract: 309,498. Futacchi, D. April 11, 1928, [Convention date]. Drawings to Specification. Oxidation of organic compounds. - Organic substances are oxidized by causing oxygen, air or oxidizing mixture to act on the heated substances under pressure of 150-800 kgs. per sq. in. If the substance treated is not a liquid it must be dissolved in a liquid not readily oxidized under the conditions used. Methyl alcohol may be oxidized in this way to ethylene glycol containing some glycerine and poly-alcohols, sugars &c., the content of glycerine and sugars being increased by a modification of the temperature and pressure used. Alcohols, aldehydes and ketones may be obtained from petroleum, fatty acids from paraffins, and amino-acids from paraffins in the presence of ammonia.. A catalyst such as iron, copper, vanadium or any other suitable substance may be used. The apparatus used consists of two high pressure tubes arranged in series. one constituting the reaction tube proper provided with a suitable heating system, preferably electric, the other constituting a safety tube into which the liquid to be oxidized may be automatically forced by the action of the compressed gaseous column. if overheating takes place. Specification 252,327 is referred to.
Patent GB-551672-A (GB)
Title: Improvements in beverage mixing apparatus
IPC: B01F9/00
Filed: 1941-09-01
Abstract: 551,672. Mixing apparatus. CROWN CORK & SEAL CO., Inc. Sept, 1, 1941, No. 11167. Convention date, Sept. 23, 1940. [Class 86] In beverage mixing apparatus, of the general construction described in Specification 532,254 comprising a rotary table carrying a number of container supports which are both inverted and spun for mixing the contents, the supports 18 are mounted on shafts 20 carried by hollow posts 19 on the rotary driven table 16 and are inverted by means of a short length of chain 81 secured at one end to the shaft 20 and at the other to a rod 80 carrying a roller 88 running in a fixed cam track 89c. The holder shown in inverted position in Fig. 2 is pressed by means of a roller 42 and track 70 so that the rotary container support contacts a friction surface on a wheel 73 driven at high speed by a belt 75 and motor 76 whereby the container is rapidly spun. Each container support comprises a cup-shaped outer member 31 having inwardly and downwardly extending arms 34 between which are located outwardly and downwardly extending arms 38 on a flat spring-supported container supporting plate 32 whereby under influence of the upper clamping arm 45 the container is correctly centred, this being assisted by a recessed plate 66. Each upper clamping arm 45 is carried by a rod 46 guided in the hollow part 19 and normally pressed down by a spring 48 but lifted for removal of a container and insertion of a new one by a rod 50 carrying a roller 96 engaging a second cam track. The arm 45 has in and out guide lips 58, 59 and a spring arm 100 centres the upper part of the container.
Patent GB-836983-A (GB)
Title: Improvements in electric arc welding equipment
Inventor: HATTY WILLIAM PATRICK HAMILTON
IPC: B23K9/10
Filed: 1955-04-18
Abstract: 836,983. Supply systems for welding arcs; rectifying. LINCOLN ELECTRIC CO. Ltd. July 17, 1956 [April 18, 1955], No. 11167/55. Classes 38 (2) and 38 (4). In an arc welding equipment with variable ripple control, a saturable choke load winding 4 is connected between a full-wave rectifier 2 and the welding electrodes 3. The choke bias winding 5 is fed from one arm of the rectifier through a smoothing choke 6 and variable resistor 7. By adjustment of this resistor the impedance of the choke and hence the degree of smoothing may be varied. A changeover switch 8 provides A.C. to the welding electrodes when required.
Patent GB-578570-A (GB)
Title: Improvements in or relating to variable-pitch propellers
IPC: B64C11/30
Filed: 1944-06-12
Abstract: 578,570. Variable - pitch propellers. NEWPORT, H., GODDEN, T. E., and MORRIS, E. H. June 12, 1944, No. 11247. [Class 114] In counter rotating coaxial variable-pitch propellers, the link connecting the pitchvarying mechanisms of the two propellers is formed with universally-jointed ends. The pitch-varying rod 13 of the forward propeller is attached to the inner race 17 of a thrust bearing slidable axially on the shaft 10. The outer race 20 is linked to the crank-pin 23 of the pitch-varying gear of the second propeller by a rod 29, 30 having spherical ends 27, 28 and provided with a length adjustment nut 33. This nut slides in a tube 35 mounted on a rubber bush in the hub casing 15. To overcome the oblique thrust of the link 29, 30, a pin 41 (Fig. 5), is rigidly attached to the hub casing 15 and passes through a rubber bushed fork 40 attached to the outer race of the bearing.
Patent GB-1300724-A (GB)
Title: Sedimentation tank
IPC: B01D21/06
Filed: 1970-03-10
Abstract: 1300724 Charging sedimentation tank DORR-OLIVER Inc 10 March 1970 [10 March 1969] 11349/70 Heading B1D In a sedimentation tank, the feed pulp is introduced via annular feed well 26 through pipes 29, 29a in opposed substantially tangential directions into feedwell 27 so that the influent energy is dissipated, and is distributed from well 27 uniformly in all radial directions while entering the surrounding body of liquid undergoing sedimentation.
Patent GB-1397684-A (GB)
Title: Diffusion of impurity into semiconductor material
IPC: H01L21/306
Filed: 1973-03-08
Abstract: 1397684 Diffusion in semi-conductors INTERNATIONAL BUSINESS MACHINES CORP 8 March 1973 [6 April 1972] 11389/73 Heading H1K In a semi-conductor diffusion process an oxide layer containing the dopant is first vapour deposited on the semi-conductor body under conditions such that a dopant-rich interface layer of a material containing both the semiconductor and the dopant forms beneath the oxide layer and an initial concentration of the dopant enters a shallow layer of the semiconductor beneath the interface layer. The atmosphere around the body is then altered to an oxidizing state, the other conditions preferably remaining unchanged, so that the interface layer is converted to a soluble oxide which is subsequently removed by etching together with the dopant-containing oxide layer thereon. A drive-in diffusion is then carried out, preferably in an oxidizing atmosphere, to redistribute the initial dopant concentration from the shallow layer. For a Si body with B as the dopant the dopant-containing oxide is B 2 O 3  deposited, in an aperture in an oxide mask, from a vapour whose source is boron nitride slices having their outer surfaces oxidized to form B 2 O 3 . An inert carrier gas such as nitrogen is used. The Si body is maintained at 800-1300 C. during the oxide deposition process. The interface layer formed in these conditions is believed to be SiB 6 , which converts to a soluble borosilicate glass on the addition of oxygen and/or steam to the atmosphere. As, as a dopant, and Ge, as a semiconductor material, are also mentioned.
Patent GB-670848-A (GB)
Title: Improvements in or relating to hydraulic couplings
IPC: F16D33/18
Filed: 1950-05-08
Abstract: 670,848. Hydraulic couplings. YATES, H. G., and PARSONS & MARINE ENGINEERING TURBINE RESEARCH & DEVELOPMENT ASSOCIATION. May 8, 1950, No. 11414/50. Addition to 623,266. Class 69 (ii). The nozzles e of the coupling described in parent Specification are disposed so that the longitudinal axis of each nozzle opening is inwardly inclined with respect to a tangent g, drawn at each opening, to a circle h passing through all the openings.
Patent GB-208978-A (GB)
Title: Improvements in or relating to separating materials of different specific weights by gravity aided by fluid streams
IPC: B03B5/62
Filed: 1923-04-27
Abstract: 208,978. Bongardt, E. April 27, 1923. Stationary-vessel wet-separating and washing apparatus; upward-current classifiers.-Solids of dfiferent specific gravities are separated by subjecting them to the action of a stream produced in a carrier fluid by a group of nozzles 4 arranged on an inclined plane and of such a strength as to support the lighter constituents and allow the heavier to fall through. As applied to the separation of the ash from gas producers, the mixture is fed into a water tank 1, the current from the group of nozzles 4 separating the mixture into three constituents deposited respectively at 13, 15, 14 from which they are separately discharged by conveyers. The nozzles are supplied by a pump 5 and may be in the form of tubes with apertures or slots covered with gauze and each controlled by a valve. The group may be swung about a pivot 6 to adjust its inclination. A number of groups of nozzles producing currents of different intensities may be arranged in series and either in line or superposed. In a modification, Fig. 6, the nozzles 63 are arranged as shown and cause the fluid to circulate in a curved casing 71 divided at its lowest part by a perforated partition 72. The heavy material is discharged by a shoot 74 and the intermediate material by a shoot 73 to separate conveyers, the lightest materials being floated into a channel 75 with a regulating slide 77 and adjustable guide plate 76. The nozzles may be replaced by rotating blades.
Patent GB-785868-A (GB)
Title: Air conditioning installations for rooms
IPC: F24F1/01
Filed: 1956-04-16
Abstract: 785,868. Unit air conditioning apparatus. SULZER FRERES SOC.-ANON. April 16, 1956 [April 15, 1955], No. 11462/56. Class 137. An air conditioning apparatus for a room comprises a housing 1 having a compartment 2 which receives compressed air from an opening 7 in a distribution passage 3 contained therein and passes it, at high velocity through expansion nozzles 8 formed in its upper face, into a mixing chamber 9, the ejection effect thus produced sucking air from the room into the housing 1 through side wall apertures 10, 11 and an aperture in the bottom wall, and over two elements 14a, 14b of a heat exchanger to mix with the fresh air in the chamber 9 for discharge through an opening 13 in the top of the casing. The distribution passage 3 is connected to a source of conditioned air under pressure by a pipe, not shown, which is controlled by a valve. Felt linings 6, to dampen noise, are fitted on the inside of the sheet metal body 5 of the compartment 2 as well as on both sides of the passage 3. The mixing chamber 9 is flanked by the two heat exchange elements 14a, 14b which consist of pipe coils 16 connected together by a pipe 18 and in series with supply and discharge pipes, not shown, for a liquid heating, or cooling medium, the supply pipe being provided with a manually operable valve. The pipe coils 16 of the two elements 14a, 14b, provided with vertical fins 17 whose edges are inclined with respect to the adjacent walls of the housing, may be connected in parallel. A condensate trough 22 is formed on the top of the compartment 2 and is drained by a pipe, not shown. In order that the whole of the surface of the heat exchangers contributes effectively to the heating, or cooling, of the room air, the overall height of the elements 14a, 14b is kept small. In a modification the pipe coils 16 are of flattened cross-section and are inclined to reduce the resistance to the flow of room air.
Patent GB-115162-A (GB)
IPC: D05B57/02
Abstract: 115,162. Singer Manufacturing Co., (Singer Manufacturing Co.). Aug. 4, 1917. Addition to 16267/15, Multiple-needle machines; double-loop stitching. -Relates to an improvement in the mechanism, described in the parent Specification, by which the loopers are withdrawn from their most retracted position to a position in which they can be easily threaded, the main staff being locked. With the object of enabling the operator to find the position in which the main shaft is locked more readily, the arcuate plate 23 is slidingly mounted on the hand-lever 20 by means of a headed pin 29 carried by the plate and is actuated by a spring 31 more powerful than, and acting in opposition to the spring 26 which actuates the detent pin 25. Normally, the end of the pin 25 lies in a socket 24 in the plate, the movement of which is so limited by the head of the pin 29, that the spring 31 is ineffective. To bring the loopers into threading position, the lever 20 is turned thus forcing the pin 25 out of the socket and bringing it under the influence of the strong pin 31 which snaps it into locking engagement with the shaft when the latter is turned to the correct position.
Patent GB-813330-A (GB)
Title: Improvements in or relating to turbines
IPC: F01D25/26
Filed: 1957-04-09
Abstract: 813,330. Turbines. SOC. RATEAU. April 9, 1957 [April 25, 1956], No. 11528/57. Class 110(3). During starting of a double casing turbine live steam is drawn off before expansion from the supply to the turbine and is led into the space between the casings. A steam turbine comprises internal and external casings 4, 5 defining a space 6 through which live steam can circulate. Live steam is admitted to the turbine through a check valve v and a regulating valve s. Steam is drawn off from between the valves r, s through a pipe t and led to orifices a, a<SP>1</SP> connected to the space G. An automatic valve wand calibrated orifice o are mounted in pipe t. The orifice o regulates the rate at which steam is drawn off and the valve w the duration of the flow. Valve w may be actuated by a timing device or temperature regulating means. When valve w is closed, valve 8 may be opened so that steam may be supplied to freed water heaters.