baber/WOPTO huggingface dataset:
Patent GB-1261547-A (GB)
Title: Improvements in disc brakes
IPC: F16D55/224
Filed: 1969-01-17
Abstract: 1,261,547. Disc brakes. SOC. ANON. FRANCAISE DU FERODO. 17 Jan., 1969 [18 Jan., 1968], No. 2921/69. Heading F2E.  A disc brake comprises a frame 16, a disc 10, two brake pads 11A, 11B carried by blocks 14A, 14B, each pivoted on a lever 21A, 21B pivoted on the frame, actuating means 32, resilient releasing means 30 and automatic wear adjusting means including a device 76 which limits displacement of the levers 21 in the brake releasing direction but permits releasing of the brake as a result of tolerances between moving parts or by resilient means between or in at least some of the moving parts. Each lever comprises two parallel flanges 22 between which extend pins 20, 24, 25, 26. The pins 24 act as pivots and are carried on a spindle 27 mounted on the frame by flanges 28. A release spring 30 extends between pins 25 and an hydraulic piston and cylinder 31, 32 extends between pins 26. Each block 14 is pivoted on a lever by means of a pin 20 extending through flanges 19 on the block. The blocks are also connected to the frame by means of lugs 15 and spindles 18.
Patent GB-710156-A (GB)
Title: Improvements in electric signalling devices
IPC: H04L12/02
Filed: 1952-02-05
Abstract: 710,156. Telegraph transmitters. GENERAL ELECTRIC CO., Ltd., and ALTREE, B. T. R. Dec. 2, 1952 [Feb. 5, 1952], No. 2983/52. Class 40 (3). [Also in Group XXXVIII] A device for generating a code sequence of signals, for example a busy signal to a calling line in a telegraph exchange system, comprises a step-by-step switch of which the contact banks are selectively connected to suitable potentials in predetermined order, means for connecting the driving magnet of the switch to half-wave rectified alternating current of a suitable frequency when signals are to be transmitted and means for applying the signals to a line under control of the connections to said banks of contacts. In the application to a telegraph exchange system the busy condition of a called line is effective to associate the signal generating apparatus with the calling line by earth applied over a connection S to a relay MS/3 which at contact MS1 operates a relay MA/2 connecting at contacts MA1, MA2 a 50-cycle source via a transformer T and rectifier MR to the driving magnet SG of the switch, which is of the non-homing type, and has corresponding pairs of wipers SG1, SG2 and SG3, SG4. The switch is moved in steps to an initial or home position in which ground is applied over wiper SG2, closed contact MS2 and connection P to energize a start relay (not shown) before signal transmission is commenced. The signals are generated by wipers SG3, SG4 engaging contacts selectively connected via resistances R1, R2 to negative and positive sources of potential applied over closed contact MS3 and network R3 to a second winding of a polarized relay D/1 provided with a biasing winding. The armature D1 applies signal potentials via resistances R5, R6 and a network to a line B leading to the calling station. When the signals have been transmitted the signal generator operates to remove the earth potential from the connection 5 so that the relay SM/3 releases and the switch stops in the position it has attained. Further signals may be generated by providing wipers additional to SG3, SG4 (as shown) and which are made effective in succession.
Patent GB-984342-A (GB)
Title: A gearchange control device with a switch for an electrically operated control for a coupling device
IPC: F16H63/46
Filed: 1964-01-23
Abstract: 984,342. Change speed control. FRANCAISE DU FERODO S.A. Jan. 23, 1964 [Feb. 1, 1963], No. 3010/64. Heading F2D. In a two-part gear shift lever incorporating a switch for clutch control wherein the end 22 of an upper rod 13 of the shift lever is urged towards a central position within a sleeve 19 of a lower part 14 of the lever by a spring 30, a sleeve 27 is resiliently held coaxial with the end 22 of the rod 13 so that on movement of the rod 13 the sleeve 27 engages a contact cup 24 to disengage the clutch prior to the end 22 of the rod 13 engaging the cup 22 for movement of the lever as a unit. The sleeve 27 has a flange 28 which is clamped between the spring 30 and a flange 16 on the rod 13. The end 12 of the sleeve 27 is frusto-conical to provide a line contact with the cup 24. When the lever moves as a unit the sleeve 27 is held between the end 22 of the rod 13 and the cup 24.
Patent GB-575672-A (GB)
Title: Improvements in and relating to methods of preparing tetrachloroethylene and chlorosilanes
IPC: C07C17/26
Filed: 1943-02-24
Abstract: Tetrachloroethylene and chlorosilanes are prepared by passing carbon tetrachloride over heated silicon in the presence of a metallic catalyst for the reaction.  The preferred catalyst is copper, but nickel, tin, antimony, manganese, silver, and titanium may also be used.  The silicon may be used as such and in the presence of the metallic catalyst or it may be intimately associated with the catalyst in the form of an alloy or preferably in the form of a solid porous contact mass such as is described in Specification 575,669, [Group III].  The reaction temperature should be above 80 DEG  C. and preferably between 200 DEG -210 DEG  C. or even up to 300 DEG  C. The reaction should preferably be carried out in the presence of an inert gas such as nitrogen, which may be mixed with the carbon tetrachloride vapour as it enters the reaction chamber.  The best yields are obtained when the inert gas comprises at least 50 per cent of the gaseous mixture entering the reaction vessel.  In an example, dry oxygen free nitrogen gas is passed through a reservoir of carbon tetrachloride and then into a reaction tube packed with pellets made of 90 per cent silicon and 10 per cent copper in the form of an alloy.  The temperature of reaction is 200 DEG -210 DEG  C.  The reaction products are condensed and the condensate fractionally distilled.  Sym. tetrachloroethylene and hexachlorosilicane are isolated as the main products. Specifications 575,667, 575,668, 575,673 and 575,674 also are referred to.
Patent GB-271014-A (GB)
Title: Improvements in walls
IPC: E04B2/04
Filed: 1927-02-03
Abstract: 271,014. Cowieson, F. D. Feb. 3, 1927. Walls. - A wooden framework 6 is secured to the inside of a brick or like wall 2 by staples 5 which engage inwardlyprojecting bends 7 of a wire 1 laid centrally in the brickwork. A layer 8 of waterproof material is placed between the brickwork and framing.
Patent GB-813504-A (GB)
Title: Improvements relating to investment casting moulds
Inventor: LYON GERALD
IPC: B22C1/02
Filed: 1955-02-02
Abstract: In an investment casting mould the lining is wholly or partially constituted of fused silica.  Powdered fused silica may be suspended in a silicate binder with or without the addition of refractories such as dry flint powder, crushed quartz, zircon, alumina and magnesia, and a pattern may be coated with successive coatings by dipping or spraying, each successive layer having a smaller proportion of fused silica than the previous one.  In one embodiment the slurry comprises fused silica and powdered zircon in a ratio of 1 : 3, suspended in a binder of sodium silicate, soap solution, water and a wetting agent.  Specification 767,114 is referred to.
Patent GB-228906-A (GB)
Title: Improvements in or relating to the combustion, gasification, or degasification of pulverulent solid or atomised liquid fuels
IPC: F23C99/00
Filed: 1925-02-04
Abstract: 228,906. Szikla, G. Feb. 4, 1924, [Convention date]. Pulverulent and liquid fuel furnaces. - The combustion, gasification, or de-gasification of pulverulent solid or pulverized liquid fuels, such as tar or paraffin, is effected in an upwardly flaring shaft 1 into which the fuel is introduced at several points at its narrowest cross-section by feed worms 3 or pneumatic means and carried upwardly and held in suspension during partial or complete combustion by a current of air supplied by a fan 13 to a chamber 5 beneath the lower end 2 of the shaft 1. Further air may be introduced by one or more other points in the shaft. In order that the velocity of the upwardly flowing air current may be uniform throughout the cross-sectional area of the shaft, distributing means such as 10, or gratings or means for imparting to the air a rotary motion are arranged at the lower end of the shaft. The descent of the unconsumed particles is effected by reducing or stopping the fuel supply and by throttling or interrupting the blast. The unconsumed fuel and ashes are caught by the grate 6, the ashes finally falling into water contained in the chamber 5 and being removed by the conveyer 12, while the fuel on the grate 6 serves to heat the air for combustion. Deflectors 7<a> regulate the course of the air over and through the grate. For the gasification of fuels the air supply is restricted so as to generate a combustible gas, steam or pulverized water being introduced into the shaft 1. The pulverized fuel may be subjected only to sufficient heating to drive off the volatile constituents, the gases introduced into the suspended fuel being heated to the requisite temperature before they are introduced and the coke particles being allowed to settle as desired. The Specification, as open to inspection under Sect. 91 (3) (a) describes and shows independent means for feeding fuel to the grate 6. This subject-matter does not appear in the Specification as accepted.
Patent GB-903605-A (GB)
Title: Improvements in or relating to hollow articles
IPC: F21V1/00
Filed: 1961-01-27
Abstract: 903,605. Lampshades. REID, J. Jan. 27, 1961, No. 3213/61. Addition to 903,604. Class 75 (2). A hollow article for use as a lampshade or as a container for, e.g., waste paper, comprises two sheets 10 of thin material, one of which at least is flexible and resilient, secured together along lines 11 spaced from opposite edges and a wire frame having side arms 13, 15 engaging between these edges outside the join, the arms being spaced apart to such an extent as to maintain one or both sheets bowed. The space between the sheets may be closed by a base wall to form a container. The sides 13, 15 may be joined at the lower ends by a wire 14 and bent inwards and downwards at the upper ends to form arms 16, 17 secured to an annular plate 18 for supporting a lampholder. The sheets may be joined by adhesive, staples or rivets or, if they are of suitable synthetic resin, by welding. Three or more sheets may be used, the frame having a corresponding number of arms. Specification 815,413 also is referred to.
Patent GB-162770-A (GB)
Title: Improvements in and relating to the reception of continuous waves in wireless telegraphy
IPC: H04B1/16
Filed: 1920-02-02
Abstract: 162,770. Macrorie, A. K., and Appleton, W. A. Feb. 2, 1920. Audible reception of unmodulated continuous waves; thermionic valves, arrangements and connections of.-Relates to means for receiving continuous-wave signals wherein the amplitude of the received energy is directly varied at an audible frequency by means of a damping-valve controlled by a second valve oscillating at a low frequency. A triode valve C, D, E is placed across the inductance A of the tuned receiving-circuit A, B, and the effective resistance of this valve is varied by imposing a low-frequency alternation of potential upon its grid E by means of a generator valve KLM coupled to the grid circuit of the first valve through the coils G, H. Fig. 2 shows the effective result upon the amplitude of the oscillatory currents flowing in the receiving- circuit A, B, the curve V, G, V<1> representing the varying potential of the grid E. After rectification, the modified or 'damped signal-energy appears in the telephones as a series of wavetrains of audible frequency. The damping-valve' CDE may be coupled to the ancde circuit of the last valve in a high-frequency amplifying-set. Or instead of being inserted directly across the inductance A, the damping-valve :may be inductively coupled thereto by means of a step-up transformer.
Patent GB-607382-A (GB)
Title: Improvements in high and medium frequency transformers utilized more particularly inwireless apparatus
IPC: H03H7/01
Filed: 1946-02-01
Abstract: 607,382. High -frequency transformers. RENARD, E. Feb. 1, 1946, No. 3227. Convention date, Jan. 14, 1942. [Class 38 (ii)]  A medium or highfrequency transformer for wireless apparatus, and with adjustable coupling between the coils, comprises a sheet of insulating material 1 with two recesses 2, 3 in one 2 of which a fused coil 8 is mounted, while the second coil 14 is mounted in a recess in a sheet of insulating material and pivotally mounted in the recess 3. Each coil is supported on a split tube 9 embracing the insulating sheet and supported at its inner end by a smaller split tube 12 likewise embracing the sheet. Edges 11 of an opening into the recess are cut to form a thread portion to engage a screwed core 13. The sheet 4 has lugs 19, 22 engaging circular openings in transverse plates 16, 24, which are divided at 18, 25. A disc 20 carried by the sheet 4 has stops 21 to limit the range of adjustment effected by means of the member 31 of a spanner which can engage the lug 22. To clamp the sheet 4 in any adjusted position, tongues 26 on the sheet 1 project through a plate 27 comprising a cam surface whereby they are pressed towards each other when the plate 27 is turned by lugs 29 on the spanner engaged with holes 28. A transverse plate 5 carries the transformer terminals and may carry condensers 6 shunted to the windings. The shrouding 32 has apertures 33, 34 giving access to the cores 13.
Patent GB-270397-A (GB)
Title: Improvements in motor vehicles
IPC: B60W10/02
Filed: 1926-02-05
Abstract: 270,397. Chaseside Motor Co., Ltd., and James, C. E. Feb. 5, 1926. Seats, arrangement and disposition of. - The driver's seat 21 on a motor vehicle is arranged at the side and in front of the usual position and is carried by a frame which may be secured either to a main frame member 1 or to a platform 3 carrying the steering and other controls.
Patent GB-114305-A (GB)
Title: Improved Manufacture of Iron by Electrolysis.
Inventor: CORRADO ARZANO
IPC: C25C1/06
Filed: 1918-02-26
Abstract: 114,305. Arzano, C., and Clerici, G. March 19, 1917, [Convention date]. Void [Published under Sect. 91 of the Act]. Iron, obtaining.-Soft iron is obtained directly from an electrolyte containing an addition of organic or inorganic aluminium salts. A suitable solution contains 42 parts of ferrous sulphate, 50 parts of aluminium chloride, and water to bring the solution to a density of 30‹ Be. This solution is maintained at 100-105‹ C. during electrolysis. Depolarizers, and annealing of the deposited iron, are unnecessary.
Patent GB-1001435-A (GB)
Title: Improvements in or relating to vehicle seats
IPC: B60N2/36
Filed: 1964-01-27
Abstract: 1,001,435. Seats convertible into beds. K. BOHN. Jan. 27, 1964, No. 3458/64. Heading A4J. [Also in Division B7]  In a motor vehicle such as an estate or utility car (see Division B7), the back rest 3 of the front seat is forwardly pivotal from its normal position to position 4, the seat cushion 6 of the rear seat is movable from its normal position so as to rest on the front seat, and the back rest 18 of the rear seat is pivotable so as to rest at its upper edge 20 against the rear seat cushion. A substantially flat surface is thus formed. The front seat is slidably mounted and lockable. Hinge elements 9/10 are mounted on axle pins 7/8 mounted on the vehicle body and are pivoted to the rear seat cushions 6 by pins 13/14, so that the rear seat cushion 6 may be pivoted forwards until the cushion front edge 15 abuts the back rest 3 of the front seat and the elements 9/10 abut the frame of the rear seat cushion 6. In another embodiment, Fig. 2 (not shown), the hinge elements 9/10 are replaced by two metal rails secured to the underside of the rear seat cushion 6 and slidable in brackets fitted to base elements fixed to the vehicle body. U-shaped members attached to the front ends of the rails engage over the axle pins to lock the rear seat cushion against sliding in normal seating. The rear ends of the rails are bent so that they abut the brackets.
Patent GB-301298-A (GB)
Title: Improvements in and relating to steam or gas turbines
IPC: F01D25/10
Filed: 1928-02-03
Abstract: 301,298. Akt.-Ges., Brown, Boveri, et Cie. Nov. 26, 1927, [Convention date]. Heating parts.-Relates to means for heating up turbines before use, and for keeping them hot. The requisite heat is imparted to the turbine casing externally by steam or hot air or by electric heating devices. Fig. 1 shows the air space 22 between the turbine casing 7 and an outer shell 27 heated by steam coils 15 and/or an electric heating net work 50 embedded in insulating material 28. In Fig. 3, hot air is circulated through the space 22 by a pump 20, the heat being supplied by a steam beater 23 controlled by a thermostat 30. The heat may be derived from flue gases. Fig. 2 shows an arrangement in which a rod 49 controlling the amount of heat supplied is positioned by a bellcrank lever 46 which is actuated when the turbine casing 40 moves axially upon heating up. The casing has a fixed support at 41 and a movable support at 42. The casing flanges may be ridged, and the connecting belts cored, and the arrangement of heating coils and baffles may be varied. The steam pipes and control valves may be sinailarly heated, and the steam admission valve may be interlocked with the valve controlling the heating-up process.
Patent GB-292194-A (GB)
Title: Improvements in or relating to regulating or controlling systems for electric motors
IPC: H02P7/06
Filed: 1927-02-08
Abstract: 292,194. Hecht, N. F. S. Feb. 8, 1027. Drawings to Specification. Coils and conductors; motors, controlling.-An electric motor used with a speed-governor which acts by varying a mechanical braking force has its armature circuit of abnormally high resistance, i.e. a resistance of the order of 100 ohms or more. The object is to reduce the magnitude of variations in current strength due to variations in the voltage of supply, and thus reduce the amount of energy to be absorbed by the governor. In one arrangement the resistance is external to the motor armature. As an alternative an armature winding of high resistance may be employed. Specification 241,512 is referred to.
Patent GB-975779-A (GB)
Title: Laminates
Inventor: BURKLEY RALPH AUGUSTINE
IPC: B32B27/00
Filed: 1963-01-29
Abstract: 975,779. Laminates and laminating. GOODYEAR TIRE & RUBBER CO. Jan. 29, 1963, No. 3557/63. Heading B5N. A laminate having an outer skin of a tough rigid material having high temperature resistant and heat insulating characteristics and an inner skin of stretched polymethylmethacrylate is made by holding the skins in spaced relation, sealing round the edges and flooding in a liquid material which is cured to form a tough deformable resinous layer. The outer skin may be selected from the group comprising unoriented or oriented polymers of methylmethacrylate modified with up to 2% of a cross-linking agent; allyl di-glycol carbonate polymers; copolymers of allyl di-glycol carbonate and acrylic methylmethacrylate monomers; cured polyester resins comprising the products of mixtures of unsaturated alkyds made by reacting unsaturated polycarboxylic acids with polyols and cross-linking materials selected from the group of styrene, vinyl toluene, diallyl phthalate, methyl methacrylate and triallyl cyanurate; epoxy resins which are made by curing the reaction products of epichlorohydrin and bisphenol A with curing agents selected from the group consisting of polyfunctional amines, polyfunctional amides, polycarboxylic acids and anhydrides, and Lewis acids; and highly crosslinked copolymers of methylmethacrylate and up to 20% of a cross-linking monomer. The liquid material may be selected from the group of materials consisting of those adapted to form flexible polyesters which are essentially about 50% of an unsaturated alkyd made by reacting a material from the group of an unsaturated dicarboxylic acid and unsaturated dicarboxylic acid anhydrides with a saturated dicarboxylic acid and with a diol and about 50% of a styrene type cross-linking monomer; flexible epoxy resin forming substances derived from cashew nut oil; mixtures of epichlorohydrin, bisphenol A, a curing agent, and a softening agent adapted to be cured to form a flexible epoxy resin; and mixtures of such flexible epoxy resin forming materials. The laminate may be used for missile and high-speed aircraft components such as canopies and may be reinforced with glass fibres or wire mesh and may have surface coatings of metal which are protected by coatings of resins such as silanes, epoxy, polyester and polymethylmethacrylate resins.
Patent GB-195818-A (GB)
Title: Improvements in and relating to microscopes and devices for microphotography
IPC: G02B21/36
Filed: 1922-02-07
Abstract: 195,818. Craggs, E. H., and Chopra, N. D. Feb. 7, 1922. Microscopes, adapted to be used in either a vertical or horizontal position, are mounted on the same base c as a camera b and so arranged that when turned into the horizontal position II the object under examination may be photographed. To one side of the base is fitted a platform e upon which rails e<1> are mounted to receive two sets of illuminating apparatus e<3> for the illumination of the object in both position. Between the rails on which the camera is mounted is journaled a spindle b<6> which frictionally engages the fine adjustment screw a<4> when the microscope is horizontal. The ground glass of the camera is set for various magnifications in accordance with the indications of the marker b<5> in the graduated rail b<4>. One of the optical benches for illuminating the stage of the microscope is adjustable transversely.
Patent GB-1498824-A (GB)
Title: Apparatus for monitoring and estimating the loading of an x-ray tube
IPC: G01D1/16
Filed: 1975-01-28
Abstract: 1498824 Monitoring and estimating x-ray tube loading PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 28 Jan 1975 3616/75 Heading G1A Apparatus for this comprises means 1, 4 for providing a first signal representative of the sensed or simulated instantaneous anode temperature T, and means 1, 2, 3 for providing a second signal corresponding to the maximum permissible temperature T max  less the predicted increase #T due to energy to be applied in an anticipated exposure, a simulation network 8 providing signal T s  representative of accelerated simulation of the variation of anode temperature with time, means for applying the first signal to network 8 at the beginning of its simulation cycle, means 10, 11, 12 for measuring the time between this beginning and when T s  becomes less than the second signal, and an indicator 13. Connected to the tube's high voltage supply, circuit 1 gives an output proportional to the power applied to the tube. This is integrated and stored in circuit 2 to give an output proportional to the expected temperature rise #T. The variation of anode temperature is simulated by real time simulator 4, detailed in Fig. 3 (not shown) and its output signal operates a temperature indication 6 and is compared in comparator 5 to operate an alarm if it exceeds T max  and in comparator 7 to actuate an exposure blocking device or operate an alarm if it exceeds T max -#T. Simulator 4 can be replaced by a radiation detector and 2 may be replaced by a device multiplying the voltage by the quantity of electricity used. As long as fast simulated signal T s  applied to it exceeds T max -#T comparator 9 opens gate 10 so that pulses from generator 11 operate counter 12 and indicator 13 to indicate waiting time. When T s  becomes <T max -#T, comparator 9 actuates pulse generator 14 which resets counter 12, blocks 10 and applies a signal to simulator 8 for its cycle to commence. Such cycles are repeated until To <T max -#T, when comparator 7 releases the exposure and blocks generator 14. The fast simulation cycle may be started simply by a push button. The pulses of gate 10 may be integrated and stored and an analogue indication given.