baber/WOPTO huggingface dataset:
Patent GB-772725-A (GB)
Title: Improvements in, or relating to, fastenings for gates, doors and the like
IPC: E05C3/16
Filed: 1953-10-27
Abstract: 772,725. Locks; sliding bolts. BURT, F. A. Oct. 27, 1954 [Oct. 27, 1953], No. 29608/53. Class 44. Relates to fastenings of the kind wherein a pivoted latch bar is adapted to be moved into and out of engagement with a jawed projection of a keeper plate by a manually operable trip bar which extends below and at right-angles to the bar. According to the invention, the pivoted latch bar is mounted so that it is also capable of longitudinal movement to enable its end which engages the jawed projection to move at least into the plane of a lug on the keeper plate, the lug being located on the opposite side of the latch bar to the jawed projection so that it prevents disengagement of the bar from the jaw by pivotal movement of the bar, and wherein a keyactuated lock is incorporated into the fastening whereby longitudinal movement of the latch bar is effected by actuation of the key. As shown, a latch bar 3 pivoted about a pin 8 normally engages a projection 6 on a keeper plate 4 but can be moved longitudinally by a knob 7 into a locked position beneath a lug 16, the latch bar being formed with pockets 13 and 14 in a recess 12, corresponding to the latching and locking positions of the bar. The latch bar is also movable to and from the locking position from either side by a key-operated locking mechanism in which a plate 23 is slidably mounted in a casing 1 and carries a stud 28 projecting inwardly of a recess 17 in the latch bar. In the locked position shown, clockwise rotation of the key disengages the pocket 14 from the pin 8, the key then engaging a pawl 19 pivoted to the latch bar to displace the latter rearwardly. Rotation of the key also disengages a tumbler 30 from a recess 31 in the plate 23 to allow the plate to be driven by the stud 28 and the tumbler to be engaged behind a nose 32 on the plate. Rotation of the key in the reverse direction moves the latch bar into locking position irrespective of whether the latch bar has been moved to unlocked position by the key or manually by the knob 7.
Patent GB-1017729-A (GB)
Title: Sample container for particle study device
IPC: G01N15/12
Filed: 1963-07-26
Abstract: 1,017,729. Electric tests. COULTER ELECTRONICS Ltd. July 26, 1963 [Aug. 3, 1962], No. 29834/63. Heading G1N. A sample container which enables Coulter particle study apparatus to be used with small samples comprises a lower chamber adapted to receive the aperture tube leaving a small volume for the sample 70 and a metallic drain member which acts as one electrode of the measuring system. The container is made of plastic or glass and has arcuate members 72 which position the aperture tube 76 accurately in the container without obstructing the drain. The container is funnel shaped at the top to allow the sample to be poured in with the aperture tube in position. The sample is changed by opening valve 66 from its closed position A or C to suck out an existing sample. The valve is then closed and a fresh sample poured in. The valve is then rapidly moved from one closed position to the other, sucking a small amount of sample into and establishing good electrical contact with the drain member which is of capillary dimensions. Valve 40 connecting the top of the tube to vacuum is then opened lifting the mercury column 32 past the metering section 42 and electrodes 36 and 38. The valve is then closed and the mercury falls back sucking the sample into the aperture tube 76. When the mercury reaches electrode 36 the measuring instrument is switched on and remains on until the mercury reaches electrode 38.
Patent GB-339035-A (GB)
Title: Improvements in or relating to sight testing apparatus
IPC: A61B3/02
Filed: 1929-10-02
Abstract: 339,035. Thorner, W. Oct. 2, 1929. Sight-testing apparatus. - For the subjective determination of the refraction of the eye an adjustable telescope is used and arranged in such a manner that the axis is deflected from the direction of sight, the rays of light within the telescope describing a closed path, whereby the entering and exit pupil are in close proximity and the patient has no reason to vary his accommodation. Rays of light a from the image to be observed are reflected in an upward direction from the surface b of the glass cube c and thence by way of prism d and convex lens e, in the focal plane of which is situated the convex lens f close in front of the patient's eye g. The rays then pass to the lens h having its focal point in the plane w in which are situated two relatively rotatable cylindrical lenses. The rays pass on by way of lenses m, n similar to lenses h, e to the prism o by which they pass into the cube c and thence to the eye. The whole arrangement is duplicated and suspended from a support r, Fig. 3. The adjustment of the telescope to various refractions is effected by varying its length which variation is uniform for each ametropic dioptre since the convex lens f is in the focal plane of the fixed lens e. The head v alters the length of the telescope and indicates the refractive error while the head w determines the astigmatism.
Patent GB-436824-A (GB)
Title: Improvements in fuel feeding arrangements for internal combustion engines
IPC: F02B19/02
Filed: 1934-10-18
Abstract: 436,824. Oil engines. MALVIN DE MONTAZET, M. J. A. DE, 163, Rue Blomet, Paris, and JOHANSON, I., 23, Boulevard Gallieni, Argenteuil, both in France. Oct. 18, 1934, No. 29889. Convention date, Feb. 16. [Class 7 (iii)] Air is forced by the piston 2, Fig. 1, into an ignition chamber 12 through aligned passages 4, 13 at the beginning of the compression stroke, and at the end thereof air is forced through aligned passages 5, 10 and sprays fuel delivered by a pipe 11 through an atomizer 14 into the chamber 12. After ignition, the burnt gases pass through the passages 4, 13 into the engine cylinder. The communication between the passages 4, 13 and 5, 10 is made at the appropriate times by ports 7, 8 in a slide or oscillating valve 6. In a modified construction, Fig. 4, the communication between the ports 4, 13 is controlled by a port 7 in a slide or oscillating valve 6, whilst the air for injecting the fuel passes through a passage 16 and acts on a flange 18 to open a spring-loaded valve 20 to spray the fuel into the chamber 12.
Patent GB-191532-A (GB)
Title: Improvements in or relating to blow lamps
IPC: B44D3/16
Filed: 1921-11-10
Abstract: 191,532. Yates, T. Nov. 10, 1921. Flame protectors and spreaders; burners, applications of.-A device for attachment to blowlamps comprises a tubular member 1, having an enlarged conical end 2, across the mouth of which a preferably square nickel plate 3, having perforations which decrease in diameter towards the centre of the plate, is fixed by passing tongues or corners on the plate through slots 4 in the conical end and turning them over. The member 1 is slidably mounted on an adaptor 5, which consists of a cylindrical casing provided with tongues 9 adapted, by being bent, to fit over a burner nozzle 6, and with three set screws 7, two of which are permanently adjusted, for clamping it in position. The tubular member 1 is provided with two large air inlet openings 10 and the adaptor 5 with two series of openings 11, 12, the openings 12 being in advance of the openings 11 so that by sliding the member on the adaptor a number of the openings 11, 12, or all one set of openings and some of the other set may register with the openings 10 and by rotating the member 1 one or both sets of openings 11, 12 may be closed. The tubular member is also provided with air-inlets 13. When the blow-lamp is used for heating moulding, the tubular member may be removed.
Patent GB-772627-A (GB)
Title: Process for the manufacture of thermoplastic polycarbonates
IPC: C08G64/24
Filed: 1954-10-18
Abstract: Linear thermoplastic polycarbonates are made by reacting a di-(monohydroxyphenyl)substituted aliphatic or cycloaliphatic hydrocarbon in which both hydroxyphenyl groups are attached to the same carbon atom of the hydrocarbon with (a) a diester of carbonic acid or (b) phosgene or (c) a bis-chlorocarbonic ester of a di-(monohydroxyphenyl)-substituted aliphatic or cycloaliphatic hydrocarbon in which both hydroxyphenyl groups are attached to the same carbon atom of the hydrocarbon.  The phenyl radicals may carry inert substituents, e.g. alkyl groups or halogen atoms. Many di(monohydroxyphenyl) - substituted hydrocarbons are specified. Reaction with the diesters of carbonic acid is effected at 50-320 DEG C.  Reaction with phosgene may be effected (i) by introducing phosgene into a solution of the di(monohydroxyphenyl)-substituted hydrocarbon in an organic base, e.g. dimethylaniline, trimethylamine or pyridine; (ii) by introducing phosgene into a solution of the di-(monohydroxyphenyl)-substituted hydrocarbon in an inert solvent, e.g. benzene, ligroin, cyclohexane, methylcyclohexane, benzene, toluene, xylene, white spirit, chloroform, methylene dichloride, carbon tetrachloride, trichloroethylene, dichloroethane, methyl acetate or ethyl acetate, with the addition of an acid-binding agent, e.g. pyridine; or (iii) by introducing phosgene into an aqueous solution or suspension of an alkali metal or alkaline earth metal salt of the di(monohydroxyphenyl)-substituted hydrocarbon preferably in presence of excess of a base and, if desired, in presence of an inert solvent of the type mentioned above, which is capable of dissolving phosgene and the produced polycarbonate.  Reaction between the di-(monohydroxyphenyl)-substituted hydrocarbons and their bis-chlorocarbonic esters may be effected under the same conditions as described above for the process using phosgene and as a catalyst a mixture of zinc and lead oxide may be used. Chain-terminating agents may be included in the reaction mixture, e.g. phenol, tert.-butylphenol, cyclohexylphenol, 2,2 - (4 - hydroxyphenyl - 41-methoxyphenyl)-propane, aniline or methyl aniline.  Oxidation inhibitors may also be added, e.g. sodium or potassium sulphite, sulphide or dithionate; phenol or p-tert.-butylphenol.  Some of the polycarbonates are soluble in petrol, benzene, toluene, o-, m- and p-xylene, ethyl and butyl acetate, acetone and cyclohexane, phenol and o-, m- and p-cresol, methylene chloride, chloroform, dimethyl formamide and pyridine and may be worked up from solution into film, fibre or lacquer coatings.  They may also be worked up into shaped articles or coatings by pressing, spraying or flamespraying.  Some of the polycarbonates are crystalline and produce from the melt fibres or films which may be orientated by stretching.  Plasticizers, e.g. tricresyl phosphate, or fillers, e.g. asbestos or glass fibres, may be added.  Examples are given.
Patent GB-355564-A (GB)
Title: Process for sintering and calcining cement or like materials
IPC: C04B7/43
Filed: 1930-10-07
Abstract: A process for sintering cement, lime, dolomite, magnesite and ores of carbonate or oxide character consists in calcining the material in a first furnace using just sufficient fuel to effect the expulsion of the carbon dioxide and water, and then sintering the calcined material, after the addition of just sufficient fuel to effect the sintering, in a blast apparatus through which air is drawn or forced, e.g. a Dwight-Lloyd apparatus.  Fine grained clinker or blast furnace slag may be added to the charge to be sintered.  The calcining may be effected in a rotary kiln, shaft furnace or blast apparatus but the sintering must be effected in a blast apparatus.ALSO:A process for sintering ores of carbonate or oxide character consists in calcining the material in a first furnace using just sufficient fuel to effect the expulsion of the carbon dioxide and water, and then sintering the calcined material, after the addition of just sufficient fuel to effect the sintering, in a blast apparatus, through which air is drawn or forced, e.g. a Dwight-Lloyd apparatus.  Fine grained clinker or blast furnace slag may be added to the charge to be sintered.  The calcining may be effected in a rotary kiln, shaft furnace or blast apparatus but the sintering must be effected in a blast apparatus.ALSO:A process for sintering cement, lime, dolomite, magnesite, and ores of carbonate or oxide character consists in calcining the material in a first furnace using just sufficient fuel to effect the expulsion of the carbon dioxide and water, and then sintering the calcined material, after the addition of just sufficient fuel to effect the sintering, in a blast apparatus through which air is drawn or forced, e.g. a Dwight-Lloyd apparatus.  Fine grained clinker or blast furnace slag may be added to the charge to be sintered.  The calcining may be effected in a rotary kiln, shaft furnace or blast apparatus, but the sintering must be effected in a blast apparatus.
Patent GB-409341-A (GB)
Title: Measuring and mixing apparatus for liquid fuels
IPC: B67D7/74
Filed: 1932-10-26
Abstract: 409,341. Mixing fluids in flow. SOC. ANON. VOLUGRAFO, and BELMONDO, C., 8, Via Curtatone, Turin, Italy. Oct. 26, 1932, No. 30045. [Class 86.] In apparatus for measuring and mixing liquid fuels in which separate measuring devices are provided from which the liquids are simultaneously conveyed through conduits with controlling devices, means are provided for maintaining a constant pressure in each conduit during the period of discharge. For this purpose, the measuring tank 4, Fig. 1A, may be provided with a constant level device comprising a float-operated byepass valve 29 which, upon the level becoming too high, returns the liquid from the supply pipe 3 through the byepass 3<1>; in another form the float is in a separate chamber and controls an admission valve. In the form shown in Fig. 7, the conduit 12 is furnished with a manometer and with a control valve 14 which is operated by a motor M when the pressure rises or falls. In this form, additional contacts may be provided in the manometer which become operative when the supply fails to effect, through relays, the stoppage of the apparatus. Fig. 8 shows the connections for one of the units of a plant in which each unit comprises a pump for supplying the measuring chamber and a separate pump for discharging it. The supply and discharge pumps are driven from motors connected with the terminals 103, 104 respectively the circuits including transformers 105, 106 operating relays 107, 108 respectively. The latter control cut-out relays 109. The motor operating the control valve of the supply conduit is connected with the terminals 111 and its direction of rotation is controlled by commutators 113, 113<1>. The manometer 11 is provided with contact pairs 114, 115 in the circuits of the commutators 113, 1131 to effect the operation of the control motor in accordance with the pressure. A further contact 116 is provided to effect the stoppage of the apparatus in the event of a failure of supply. Energisation of this circuit results in the opening of the switches 103 for the delivery pump motors through a relay 261.
Patent GB-753115-A (GB)
Title: Improvements in or relating to receivers for electric pulse code transmission systems
Inventor: DUREAU GABRIEL HENRI LEON
IPC: H03M1/00
Filed: 1954-10-19
Abstract: 753,115. Pulse code modulation circuits. SOC. ALSACIENNE DE CONSTRUCTIONS MECANIQUES. Oct. 19, 1954 [Nov. 13, 1953], No. 30069/54. Class 40 (5). Relates to decoders for pulse signals comprising distinctive groups of n binary digits, each group representing a modulating signal level and being taken from a basic sequence of 2<SP>n</SP>+(n - 1) digits as described in Specification 661,808. In the decoder a basic sequence is generated for each digit of the received group, commencing successively at sequence pulse recurrence intervals, and those sequences corresponding to digits of one of the two values are converted to complementary sequences, a signal being produced depending upon the times of occurrence of coincidence between pulses of the same value in the n basic and complementary sequences. In the embodiment described the 5-unit code groups received at terminal 1 are applied to a delay network 2 and, at the time of occurrence of a control pulse derived from the sync. separator 4, the code pulses displayed at the five tappings of the network 2 set storage devices 3<SP>1</SP> ... 3<SP>5</SP>, respectively, in one of two possible output voltage conditions depending upon the pulse value. A second control pulse from unit 4 triggers a saw-tooth generator 5 to control a cathode-ray tube basic pulse sequence generator 6 of the type described in Specification 661,808. This pulse sequence is applied to a circuit 7 which converts 1-pulses into positive and 0-pulses into negative pulses all of which are lengthened to leave no intervals therebetween. The converted sequence is applied to a delay network 8 and appears at the five tappings thereof, for application to reversing devices 91 ... 9<SP>5</SP>, at intervals of one sequence pulse recurrence period. The output voltages of circuits 31 ... 35 control these reversing devices which either pass the sequence pulses unchanged or invert their polarity, depending on the state of said output voltages. The outputs of devices 9<SP>1</SP> ... 9<SP>5</SP> are added in a summation device 10 which produces a pulse across its output load resistance at the instant of coincidence of pulses of the same value in the input sequences. The pulses thus produced are fed to a pulse time demodulator 12 to recover the modulation signal at terminal 13. Circuit 12 is suitably gated by a pulse generator 14 controlled from circuit 4. Suitable circuits for the reversing devices 9<SP>1</SP> ... 95 and the summation device 10 are described, Figs. 2, 3 (not shown).
Patent GB-264636-A (GB)
Title: Improvements relating to steam turbines
IPC: F01D9/04
Filed: 1925-11-28
Abstract: 264,636. Adamson & Co., Ltd., D., and Norton, T. Nov. 28, 1925. Nozzles.-In steam turbines having nozzles formed by a series of inter-engaging blocks secured to an annular plate or stator, a series of similar overlapping nozzle blocks a is used, each having a groove c, of which the inner wall d is concave, and the fourth wall of the nozzle passage being formed by the overlapping and abutting portion of the adjacent block. The blocks have grooves h with square corners fitting a rib on the supporting ring b, to which the blocks are secured by rivets i, or by welding or screws. Rivets j secure the blocks together, and the rigid structure comprising blocks and supporting ring may readily be machined to the required dimensions. Radial dowel pins m secure steam-tightness at the throat between overlapping portions of adjacent blocks. Caulking may also be used.
Patent GB-730644-A (GB)
Title: Preventing diesel engines from reversing
Inventor: DAWTREY LEWIS HENRY
IPC: F01B25/18
Filed: 1951-12-24
Abstract: 730,644. Ratchet clutches. STANDARD MOTOR CO., Ltd. April 15, 1952 [Dec. 24, 1951], No. 30126/51. Class 80 (2). [Also in Group XXVIII] A one-way driving face clutch in the drive of an internal-combustion engine fuel-injection pump is arranged so that the coacting portions 18, 14, after the clutch has disengaged, can only re-engage when they are in a certain relative angular position, and comprises a spring-loaded slidable member 18 with wedge-shaped teeth 19 engaging complementary recesses 20 in a ring 14 fixed to the pump .shaft 12, the angle of the wedge being such as to ensure that disengagement of'the clutch occurs on reverse drive but disengagement due to torque fluctuations is prevented. The member 18 is slidably splined to the drive shaft 15 and the recesses 20 are spaced apart unequally, e.g. at angles of 110, 120 and 130 degrees, so that the clutch parts 18, 14 can only engage in a specified relative angular position which ensures correct timing for forward rotation of the engine when the clutch re-engages. In a modification, one recess and its corresponding tooth is made narrower than the other recesses and teeth.
Patent GB-464924-A (GB)
Title: Improvements in devices for supporting patients on operating tables
IPC: A61G13/12
Filed: 1935-11-01
Abstract: 464,924. Supporting patients. SCHRANZ, R. Nov. 1, 1935, No. 30208. [Class 81 (ii)] [Also in Group XIV] An adjustable thigh and buttock support for use with operating tables comprises a bolster 3 in the form of a rod-like cushion adapted to be positioned across the table 1 and pivotally mounted at one end at the top of a pillar 4 sliding along a guide 2 at the side of the table, an adjustable abutment such as a screw 12 serving to locate the bolster which is kept against the abutment by the weight of the patient. The pillar 4 is formed with a square top 7, over which is detachably fitted a boss 8 to which the end of the metal core 14 of the bolster is pivoted, and which carries the adjusting screw 12. The bolster preferably comprises a rubber or sponge rubber tube carried on the metal core or tube 14.
Patent GB-1354860-A (GB)
Title: Colour picture tubes
IPC: H01J31/20
Filed: 1972-06-28
Abstract: 1354860 Colour television tubes HITACHI Ltd 28 June 1972 [5 July 1971 9 Aug 1971] 30217/72 Heading H1D The cone of a colour television tube is coated internally with a conductive layer of low secondary electron emissivity, because secondary electrons degrade the colour purity. In one example a film of water glass 2-10 microns thick is applied to the surface and covered with a layer 5-30 microns thick of graphite powder having a grain size of 0À5-1 microns. In other examples a mixture of water glass with titanium hydride or with graphite particles is applied to a thickness of 2-30 microns; in each case the secondary emission ratio is less than 0À25. If the coating has sufficient mechanical strength (e.g. the mixture of graphite and water glass) it may extend into the neck to make contact with connections attached to the electron gun; alternatively a coating of higher mechanical strength and a thickness of 7-40 microns may be applied to the neck and funnel, and a further coating as described above is applied over the funnel portion. The tube may be of the shadow mask type and may employ post-deflection focusing.
Patent GB-1191672-A (GB)
Title: Improvements in Sealing Means for Conveyor Belt Rollers
IPC: F16J15/447
Filed: 1967-06-30
Abstract: 1,191,672. Conveyer belt rollers. BINDER & CO. 30 June, 1967 [15 July, 1966], No. 30246/67. Heading B8A. [Also in Division F2] A bearing 2 of a conveyer belt roller is sealed by means comprising a sealing member 5 secured to the roller axle 1 and co-operating with a member 6 rotatable with the roller to form a labyrinth seal, the member 5 having an annular lip 5a which extends towards the roller end plate 3b and has a conical inner face 5b and the member 6 has an enlarged rim 6a projecting towards the face 5b. The sealing member 5 may be made of rubber and is a friction fit on the axle 1. The member 6 is a sheet metal ring and has extensions 6b and 6c projecting with clearance into annular slots 5c and 5d in the member 5.
Patent GB-1494222-A (GB)
Title: Buckling discs
IPC: F16K17/16
Filed: 1975-08-08
Abstract: 1494222 Bursting discs ELECTROFABRICATION & ENG CO Ltd 8 Aug 1975 [9 July 1974] 30433/74 Heading F1D A reverse buckling disc has a layer of material 12 bonded to at least a portion of the junction between the disc 6 and the flange 4, the arrangement being such that when snap-over occurs the disc fractures within the region of the material. As described, the material is electro-deposited chromium and is deposited either as shown, or all over the convex side of the disc, or over all of the junction apart from a small area which does not rupture on snap-over. Chemically deposited nickel alloys or filled epoxy resins may be used as the layer of material.