baber/WOPTO huggingface dataset:
Patent GB-785504-A (GB)
Title: Rope tightening and snubbing device
IPC: F16G11/14
Filed: 1955-10-24
Abstract: 785,504. Cleats for ropes &c. EASTERN ROTORCRAFT CORPORATION. Oct. 24, 1955 [Nov. 1, 1954], No. 30321/55. Class 109 A rope tightening and snubbing device 8 comprises a beam member 9 having a large diameter drum 10 substantially at its mid-region to receive, the main rope load 19, a smaller drum 11 at one end of the beam 9 to receive the reduced load in one side of the loop portion 6a, 6b of the rope 6, and a rope attachment terminal 12 at the other -end of the beam 9. The beam may be composed of two side plates 9 having the drums 10, 11 which may be provided by coacting inwardly directed circular dished projections 14, 15 formed in the side plates 9, fastened together by rivets 16, 17, between them. One of the side plates 9 may be formed with a bent piece or clip 13 to engage the rope when the device 8 is in the secured position.
Patent GB-1112094-A (GB)
Title: Transistor and method of producing it
IPC: H01L29/08
Filed: 1966-07-06
Abstract: 1,112,094. Transistors. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 6 July. 1966 [31 July, 1965], No. 30335/66. Heading H1K. The emitter region 3 of a transistor has a mesh-like configuration, and portions 5 of the base region 2 extend between the spaces in the mesh, thereby providing a high ratio of emitter circumference to emitter area. As shown, the portions 5 of the base region extend through to the upper surface of the transistor, which is coated with an oxide layer 6. Metal contact strips 9, 10, e.g. of aluminium, extend through removed portions of the oxide layer respectively to contact the emitter region 3 along strips (8), Fig. 4 (not shown), and the portions (5) of the base region on areas (7). The strips 10 are joined at one end (13) to form a comb structure, and the strips 9 are similarly joined to form a second comb structure interdigital with the first. The transistor is built up by firstly diffusing the base region 2, Fig. 3, into the collector body 1, then forming an oxide layer and shaping it into a mesh-like mask through which the emitter region 3 is produced by diffusion. The contact strips 9, 10 are applied by vapour-deposition, photographic varnishing and etching techniques. In a further embodiment portions of the collector region extend into the spaces in the emitter mesh, as well as portions of the base region.
Patent GB-881152-A (GB)
Title: Improvements in or relating to cathode-ray devices
Inventor: SCHAGEN PIETER
IPC: H04N9/22
Filed: 1957-09-27
Abstract: 881,152. Cathode-ray tubes. MULLARD Ltd. July 21, 1958 [Sept. 27, 1957], No. 30376/57. Class 39(1) [Also in Group XL(b)] A cathode-ray device comprises an elongated beam trajectory control space extending to an elongated luminescent target surface which is defined by motion of a rectilinear generatrix maintained parallel to a longitudinal datum line. An electron beam is directed into the control space from an end region thereof in an initial trajectory plane which intersects the target longitudinally and first and second deflecting means, spaced apart longitudinally are provided to effect equal and opposite variable deflections of the beam in a direction transverse to this plane so as to cause the beam to assume a path spaced from, but parallel to, the initial trajectory plane. A control field having a configuration orthogonal to the initial trajectory plane in the region thereof and in the adjacent regions to which the beam is displaced is set up in the control space to bend the path of the beam towards the target. The point of impact of the beam may be scanned longitudinally of the target by varying the angle of entry of the beam into the control space or by varying the intensity and/or configuration of the control field F which may be an electric field as described in Specification 865,663 or a magnetic field as described in Specification 865,666. The target Tg may comprise three longitudinal parallel luminescent strips peach adapted to luminesce in a different primary colour. The formation of 3-coloured traces may be produced by high-frequency spot-wobble action which may be sinusoidal or of a sawtooth nature to permit the beam to dwell for equal periods on each colour strip in a sequence. The first and second deflection means may be pairs of plates or coils 10, 11 ; 12, 13 of similar construction arranged for energization by a common source of deflection signals or the second means may be a converging lens. Specifications 827,851, 846,544 and 865,665 also are referred to.
Patent GB-865812-A (GB)
Title: Improvements in tracks for track-laying vehicles
IPC: B62D55/205
Filed: 1957-09-27
Abstract: 865,812. Tracks for vehicles. LUXEMBOURGEOISE DE BREVETS ET DE PARTICIPATIONS. Sept. 27, 1957 [Sept. 28, 1956], No. 30422/57. Class 79(1). A track-link for a vehicle track has a rigid framework 3 comprising longitudinal elements 1 that interconnect lugs (a), (b), for hinges at either end of the frame 3 which is embedded in a body of rubber or a flexible plastic material. The elements 1 are elongated steel bars or strips. The ends of the inner bars 1 have pairs of projecting lugs 2 connected by spacer means (Fig. 4 not shown) to form driving teeth. The elements 1 are cranked to allow for offsetting of the hinges (a), (b). The hingeholes of the lugs (a), (b), carry rubber linings 11 bonded to, or held between, metal bushes 12, 13,. to house a hinge pin 5. The frame 3 may be made of metal stampings fastened to the elements 1 (Fig. 5, not shown), or of metal or a suitable plastic cast or moulded on to the elements.
Patent GB-647465-A (GB)
Title: Improvements in and relating to high frequency electronic discharge devices
IPC: H01J21/36
Filed: 1946-10-11
Abstract: 647,465. Thermionic valves. BRITISH, THOMSON-HOUSTON CO., Ltd. Oct. 11, 1946, No. 30424. Convention date, April 21, 1945. Addition to 584,787. [Class 39 (i)] In a high-frequency electronic discharge device as claimed in the parent Specification a shield member 39, Fig. 2, is secured to the grid disc 29 so as to prevent material vaporized from the cathode from depositing on the insulator 34. The shield may also be attached to the anode disc of a diode, Fig. 1 (not shown), for the same purpose. The constructions described are otherwise the same as those described with reference to Figs. 1 and 6 of the parent Specification. The Specification as open to inspection under Sect. 91 also describes a construction, Fig. 3 (Cancelled), having anode 40 of steel coated with copper or silver, mesh grid 59 carried from metal wall 46 by metal cylinder 60 and an indirectly-heated cathode comprising disc 51 supported from sleeve 49 by thin cylinder 52 to restrict the flow of heat. The cathode construction also includes heat-shield 53 and an internal heater of which one lead 58 is connected to the thimble 56 sealed by glass body 57 and the other lead 55 is secured to sleeve 49 sealed to metal wall 46 via glass member 48 and solder trough 47. Insulator 44 spaces the grid and anode supports. An annular shield 61 prevents material vaporized from the cathode from reaching the glass member 48. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1505788-A (GB)
Title: Device for regulating the operation of the transmission of a motor vehicle having a continuously variable gear
IPC: F16H61/662
Filed: 1976-07-21
Abstract: 1505788 Change-speed control SOC ANON AUTOMOBILES CITROEN 21 July 1976 [30 July 1975] 30463/76 Heading F2D In a continuously variable motor vehicle transmission in which a ratio-control element is positioned by an hydraulically actuated device under the control of a distributer actuated by an engine-driven centrifugal governor opposed by resilient means adjusted by the vehicle accelerator, an electrically operable valve in a supply line to the hydraulically actuated device is closed in response to attainment of a predetermined engine speed to prevent adjustment of the transmission to its high-speed reduction, i.e. low ratio, condition, with consequent overspeeding of the engine, in the event of failure of the centrifugal governor. Decreasing engine speed influencing the governor 15 or increased depression of the accelerator (not shown) acting through a cable 20 and lever 19 on a loading spring 18 causes movement of the distributer 10 to the position shown in which a pressure source 12 is connected through a valve 22 and conduit 8a to a conduit 8 to pressurize a chamber 7 and cause a piston 5 to move a ratio adjusting member 2 against biasing means (not shown) in the direction for reducing the transmission ratio, whereas increase of engine speed or reduced depression of the accelerator causes the distributer to move to a position in which it allows the chamber 7 to exhaust through conduits 9, 9a to raise the transmission ratio, the distributer ultimately returning to a neutral position in which it blocks flow to or from the chamber 7. In the event of failure of the governor or its drive means, causing the spring 18 to move the distributer to the low ratio position the resulting increase in engine speed will be detected by means 25, e.g. a tachometer or an electronic device, which will close a switch 24, e.g. at 5400 r.p.m., and close a relay 26 to operate the valve 22 to cut off the fluid supply to the chamber 7. In a modification the valve 22 performs the additional function of applying a brake for a short time to stop the primary rotor of the transmission when reverse drive is selected. Although this brake will therefore be actuated also when the overspeeding protection means operates it is sited such that it will not make contact with the rotor when the vehicle is travelling at high speed because the rotor will then be positioned away from its low ratio position.
Patent GB-318783-A (GB)
Title: A new or improved packing table
IPC: B65B67/00
Filed: 1928-10-22
Abstract: 318,783. Kant Chocoladenfabrik Akt.- Ges., and Wolf, R. Oct. 22, 1928. Packeting confectionery &c. in receptacles. - Apparatus for facilitating the packeting of confectionery and like small goods comprises two fixed concentric annular tables a, b having a rotatable intermediate portion c. Attendants can stand both outside and inside the device at the tables a, b respectively, while supplies of confectionery, cartons, boxes &c. are distributed by the rotatable portion c. A frame with shelves c<1>, c<2> may be mounted on the part. c.
Patent GB-244122-A (GB)
Title: Manufacture of barbituric acid derivatives
Filed: 1925-12-05
Abstract: Barbituric acids substituted in the C : C-position with an unsaturated aliphatic group and with a group <FORM:0244122/2/1> , in which R1 and R2 represent two different radicles (either or both of which may be aliphatic, aromatic or alicyclic), and prepared in known manner from the corresponding disubstituted malonic acid, or by introducing one of the groups into a barbituric acid substituted with respect to the other group.  The products, which contain an asymmetric carbon atom, possess enhanced hypnotic properties.  In combination with antipyretics, such as dimethylaminoantipyrin, the compounds are useful as analgesics.  According to the examples, (1) sec-butylbarbituric acid, obtained by condensing sec-butylmalonic acid diethyl ester with urea, is heated in dilute caustic soda solution with allyl bromide to give sec-butyl-allyl-barbituric acid; (2) a hot solution of sec-butylbarbituric acid in caustic soda is stirred with 2 : 3-dibrom-1 : 2-propylene and yields sec-butyl-b -bromallyl-barbituric acid; in lieu of the dihalogenpropylene, 1 : 2 : 3-trihalogenpropane may be employed; (3) methyl-n-propylmethyl-malonic ester, prepared by condensing malonic acid with b -iodo-n-pentane, is combined with urea, and the resulting methyl-n-propylmethyl-barbituric acid warmed in aqueous caustic soda solution with b -bromallylbromide for an extended time with agitation; on cooling methyl-n-propylmethyl-b -bromallyl-barbituric acid separates out. Specifications 223,221 and 236,146 are referred to.
Patent GB-1391773-A (GB)
Title: Elecgric switches
IPC: H01H9/16
Filed: 1971-07-01
Abstract: 1391773 Switch indicators RENDAR INSTRUMENTS Ltd 27 June 1972 [1 July 1971] 30792/71 Heading H1N A successive operation push button switch comprises a push button containing an indicator 38 carried in the cap 30 of the push button and movable in a plane perpendicular to the direction of movement of the push button to indicate the position of the push button and the condition of the switch. The transversely movable rectilinear indicator 38 in the cap 30 of the push button is coupled to one end of a lever 31 pivoted in the push button about an axis 32 transverse to the direction of movement of the plunger. The other end 33 of the lever is pointed and co-operates with a fixed conical surface 35 during movement of the push button to cause the indicator 38 to move in the cap 30 to indicate the condition of the switch through a transparent window in the cap.
Patent GB-812266-A (GB)
Title: Apparatus for the solidification of aluminium sulphate in nodular form
IPC: C01F7/746
Filed: 1955-10-05
Abstract: 812,266. Granulating machines. SULPHATES Ltd. Oct. 5, 1955 [Oct. 5, I954], No. 30910/57. Divided out of 812,265 [Group XIII]. Class 87(2). [Also in Group XIII] Apparatus for producing nodules of aluminium sulphate from molten sulphate comprises a cylindrical drum 10 which rotates about its horizontal axis and has in one end a discharge opening 16 which has a smaller diameter than that of the drum so that a mass of nodules 15 is maintained in the drum. The latter has a nozzle 21 for the supply of molten sulphate, and means, e.g. a nozzle 20, for supplying cooling air to the interior of the drum in such a way as to subdivide the sulphate into droplets. The sulphate nozzle 21 and air nozzle 20 are both elongated horizontally and are directed laterally. Vanes 35 may be provided to lift the nodules and drop them onto an inclined screen 27 ; oversize nodules are discharged and smaller ones returned to the drum for further treatment. Cooling of the material in the drum may be assisted by partly covering the discharge end with a cover 28 having a suction pipe 29.
Patent GB-813836-A (GB)
Title: Improvements relating to the production of cation-exchange resins containing acetic acid groups
Inventor: KRESSMAN THEODORE ROGER ERNEST
IPC: B01J39/18
Filed: 1955-10-28
Abstract: Cation-exchange resins are made by reacting a cross-linked condensation product of an aldehyde and an hydroxyphenoxyacetic acid with a chloracetate under alkaline conditions.  The alkaline conditions may be produced by a caustic alkali, sodium carbonate, ammonia and pyridine.  Specified hydroxyphenoxy acetic acids are o-, m- and p-hydroxy phenoxy acetic acid.  If o or p-hydroxyphenoxy acetic acid is used as the starting material, then a cross-linking agent, e.g. phenol, resorcinol catechol or pyrogallol is also used. In the examples: (1) a cation-exchange resin is made by reacting sodium chloracetate and sodium hydroxide with an m-hydroxyphenoxy acetic acid condensate prepared as described in the Specification 780,750, [Group IX]; (2) p-hydroxyphenoxy acetic acid made from catechol and sodium chloracetate is condensed with phenol and formalin, the resultant condensate being reacted with sodium chloracetate and sodium hydroxide.  Specification 598,130, [Group IV], also is referred to.
Patent GB-882054-A (GB)
Title: Organopolysiloxanes and process for their production
IPC: C08G77/00
Filed: 1957-10-03
Abstract: Organopolysiloxanes having per molecule an average of 1 to 30 units of the formula <FORM:0882054/IV (a)/1> an average of 5 to 400 units of the formula <FORM:0882054/IV (a)/2> and terminated by one or more of the groups: <FORM:0882054/IV (a)/3> wherein a is an integer of at least 3, each R is a methyl or alkoxy radical, each R1 is a methyl or phenyl radical and R11 is an alkyl, aryl or alkoxy radical, may be made by forming a mixture of (1) one or more cyclic siloxanes in which the bonds of the Si atoms not attached to oxygen are attached to H atoms, methyl radicals or phenyl radicals, and/or linear siloxanes containing 2 to 5 Si atoms in which the bonds of the Si atoms not attached to oxygen are attached to methyl, phenyl or alkoxy radicals, with (2) an aminoalkylsiloxane, an alkoxy-terminated aminoalkylalkylpolysiloxane, an hydroxy-terminated aminoalkylarylpolysiloxane, a clyclic aminoalkylalkylsiloxane, a cyclic aminoalkylarylsiloxane, a linear aminoalkylpolysiloxane containing Si-bonded alkoxy groups, or an aminoalkylalkoxysilane, which may contain a Si-bonded alkyl or aryl radical, and (3) as catalyst an alkali metal, an alkali metal hydroxide or an alkali metal silanolate, and heating the mixture to a sufficient temperature to form the desired siloxane.  Examples describe the above preparation of (1) trimethylsiloxy end-blocked gamma-aminopropylmethylsiloxane - dimethylsiloxane co-polymer; (2) trimethylsiloxy end-blocked delta-aminobutylmethylsiloxane-dimethylsiloxane copolymer; (3) delta-aminobutyldimethylsiloxy-terminated dimethylsiloxane; (4) diphenylethoxylsilyl - dimethylethoxysilyl - gamma-aminopropylmethylsiloxane oil; (5) trimethylsiloxy end-blocked delta-aminobutylmethylsiloxane - diphenylsiloxane - dimethylsiloxane oil; (7) delta-aminobutylmethylsiloxane - dimethylsiloxane oil; (8, 9) various end-blocked copolymers; (6) the product of (3) was mixed with a dimethylsiloxane-dihydrogensiloxane copolymer, a solvent and catalyst, and used for waterproofing various materials (see Group VIII).  Uses: for modifying other siloxanes, e.g. by equilibrating with partially condensed methylsiloxanes to form coating materials; as sizes, e.g. for fibrous glass materials; and as water-repellents, capacitators and damping fluids.  Specification 882,096 is referred to.  Reference has been directed by the Comptroller to Specifications 684,296, 769,498 and 795,894.
Patent GB-1435541-A (GB)
Title: Soldered joint between articles comprising high melting point materials
IPC: H01J61/073
Filed: 1973-06-29
Abstract: 1435541 Brazing PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 29 June 1973 [4 July 1972] 30982/73 Heading B3R A soldered joint between articles each consisting mainly or wholly of at least one high melting point (above 2400‹ C.) metal, high melting point (above 2000‹ C.) metal carbide or metal oxide comprises titanium with an outer surface of titanium nitride or is composed entirely of titanium nitride. Such materials are tungsten, tantalum, molybdenum, rhenium, osmium, iridium, niobium, tantalum carbide tungsten carbide and aluminium oxide. The soldered joint may connect an electrode of a high pressure short-arc xenon discharge lamp to a current supply conductor, the electrode consisting of tungsten and/or tantalum which may be mixed or alloyed with thorium oxide, rhenium or tantalum carbide and the supply conductor consisting mainly of tungsten, molybdenum or tantalum. With a quantity of titanium between the parts the soldering region is heated, e.g. by a high frequency coil, in a rare gas, e.g. argon, to melt the titanium and then the soldering region is heat treated in nitrogen, preferably without intermediate cooling to form a titanium nitride film, the region being then cooled in air, in nitrogen or in a reducing atmosphere. The heat treatment in nitrogen may be effected at 1600-1900‹ C. for at least 1 second. A mixture of nitrogen and hydrogen may be used instead of nitrogen for the heat treatment atmosphere. In one example two tungsten rods were abutted with an intermediate titanium foil and heated in a high frequency furnace in argon at 1850‹ C. to melt the foil. Nitrogen then replaced the argon while the temperature of 1850‹ C. was held constant. the assembly being then cooled in nitrogen mixed with hydrogen. In another example a cylindrical electrode 1, for a short-arc xenon discharge lamp, of tungsten with 1À5% thorium oxide, has a bore 4 in which titanium and a tungsten conductor 5 are inserted the assembly being heated in a high frequency furnace in argon to melt the titanium, nitrogen then being supplied for 10 seconds to produce a titanium nitride film 7 on the titanium solder.
Patent GB-696885-A (GB)
Title: Improvements in telephone systems including loud-speaking equipment
Inventor: BALMER STANLEY
IPC: H04M9/08
Filed: 1949-12-02
Abstract: 696,885. Direct call systems; loud-speaker systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. Nov. 22, 1950 [Dec. 2, 1949], No. 30986/49. Class 40 (iv). In a telephone system including a loudspeaker substation incorporating an amplifier, a suitable balancing network is connected across the amplifier line terminals whilst a connection is being established, and at any period during which the amplifier is energized and the other party disconnected. In a P.A.X. system, a loud-speaking master station MS, Fig. 1, is able to set up a direct call over a key calling relay set KCRS to any one of a selected group of subscribers on the P.A.X. A power key (not shown) connects the amplifier power supply, disconnects the buzzer and completes a loop across the line. The master station then throws a key KL appropriate to the wanted subscriber which operates a relay SW to busy the master's P wire, start a ringing vibrator and operate relays L and SR. Contacts of the relays L and SR together complete a circuit for a supervisory lamp LP and the relay SR energizes relay H and removes the shunt from the left-hand winding of a relay PT which operates over contacts of relay H if the called party is free. The wanted subscriber is then called over contacts of relay SR which has been released by relay PT, and ringing tone is sent to the master. The release of relay SR also extinguishes the lamp LP. The called party in answering operates a relay F which releases slowly the relay PT and in consequence re-energizes the relay SR to disconnect the calling signal and ringing tone. The relay SR also completes the talking circuit over lines LC and removes a temporary balancing network comprising resistance YC and condenser QC from across the calling line. The master station may dial a further subscriber over the P.A.X. proper whilst still holding the originally called station by throwing a holding key KH which releases the relays SW and L, causing the connection of the master station to the exchange, re-connects the temporary balance YC and QC across the line of the called subscriber and lights lamp LP. If at the conclusion of the original call the called subscriber clears first, then the temporary balance is reinserted by relay SR. The master is also able to break in to an engaged subscriber and request that one of them hangs up so that his call may be established. A temporary balance connected across the input to a final selector and under the control of the A relay is described with reference to Fig. 2 (not shown). Specification 628,008 is referred to.
Patent GB-467318-A (GB)
Title: Improvements in or relating to lengthening pieces for boiler tubes
IPC: F22B37/10
Filed: 1936-11-13
Abstract: 467,318. Tube joints. GROMUS, K. Nov. 13, 1936, No. 31037. Convention date, Nov. 13, 1935. [Class 99 (i)] [Also in Group XXII] Circumferential grooves 3 in a ferrule 1 assist the jointing when the ferrule is expanded into the hole in a tube plate 2. The ferrule is welded to the end of a short boiler tube.