baber/WOPTO huggingface dataset:
Patent GB-551898-A (GB)
Title: Improvements in and relating to electric plug and socket connectors
IPC: H01R13/453
Filed: 1941-10-17
Abstract: 551,898. Two-part couplings combined with switches. TELEPHONE MANUFACTURING CO., Ltd., and TAYLOR, G. E. Oct. 17, 1941, No. 13415. Addition to 525,901. [Class 38 (i)] A wall socket having protective shutters operated as claimed in the parent Specification is combined with a switch that also controls the shutters in such a way as to prevent insertion of the plug when the switch is closed, and to cover the sockets if the plug is withdrawn while the switch is closed. The auxiliary shutter 13 of the parent Specification has an arm 23 that is coupled through a spring 24 to a lever 25 pivoted at 26 and moved when the switch 29 is operated. If the plug is not inserted closure of the switch causes the lever to move the shutter 13 into the closed position. When the switch is closed while the plug is in the socket the earth-pin restrains the shutter 13 and the spring 24 is placed under tension. If the plug is now withdrawn the spring closes the shutter 13.
Patent GB-235857-A (GB)
Title: Improvements in or relating to the instantaneous electrical control of a beam of light
IPC: G02F1/07
Filed: 1925-05-23
Abstract: 235,857. Karolus, A. June 20, 1924, [Convention date]. Optical apparatus.-A method of controlling the intensity of a beam of light by means of electrical voltage fluctuations for use in optical sound recording c o n - sists in amplifying the voltage by means of a thermionic tube and impressing the voltages on a Kerr cell, which consists of condenser plates 2, with a doubly-refracting medium 3, Fig. 1<a>, such as nitrobenzene, between them. The beam passes through a polarizer then through the medium 3 and an analyzer. The condenser plates may be set at an angle to each other, or a multiple parallel-plate condenser may be used. The insulating and dielectric properties of the medium may be improved by a previous application of a steady voltage. Current variations due to a microphone may be amplified by a thermionic valve and impressed upon the cell by means of a transfer, or the fluctuating voltage for controlling the light may be combined with a steady voltage by connecting the cell across a resistance in the plate circuit of the valve. In a modification, Fig. 3, the secondaries of transformers 10, 10<1>, with the microphone 12 in their common primary circuit, are connected oppositely, as shown, to the grids of two valves 5, 5<1> arranged in series, the valve 5 being shunted by the Kerr cell, whereby the fluctuations of voltage due to the microphone 12 are amplified. The fluctuating voltage may be a modulated high frequency and an arrangement is shown in Fig. 4 whereby oscillations produced by a back-coupled three electrode valve 5, modulated by means of a microphone 12 may be applied to a Kerr cell 2. Ultra-violet light may be cantrolled by the cell. If amplification of the actinic effect for a given voltage fluctuation is desired, the steady voltage applied to the plates 2 may be such that a change affects chiefly the violet end of the spectrum.
Patent GB-597417-A (GB)
Title: Film forming compositions
IPC: B44C1/14
Filed: 1945-05-30
Abstract: Compositions suitable for making films resistant to passage of water vapour comprise a copolymer of vinyl chloride and 40-80 per cent by weight of vinylidene chloride in intimate mixture with polyvinyl chloride or a copolymer of at least 70 per cent of vinyl chloride and up to 30 per cent of other olefinic compounds or mixtures thereof. Preferably, the composition comprises 10-90 per cent by weight of the vinyl chloride-vinylidene chloride copolymer.  The other olefinic compounds specified include vinyl acetate, vinylidene chloride, alkyl maleates, chloromaleates and fumarates, alkyl acrylates, a -alkyl acrylates and a -chloroacrylates.  The compositions may be cast from solutions in ethylene dichloride, benzene, toluene or cyclohexanone. Other materials such as plasticisers, curing agents and pigments may also be incorporated; the addition of carnauba wax or lecithin facilitates removal of the film from the casting surface.
Patent GB-766577-A (GB)
Title: Improvements in or relating to power assisted control mechanisms such as vehicle steering mechanisms
Inventor: PARKES PHILIP GUY
IPC: B62D5/06
Filed: 1954-05-10
Abstract: 766,577. Vehicle power steering. ADAMANT ENGINEERING CO., Ltd. April 12, 1955 [May 10, 1954], No. 13584/54. Class 79(5). [Also in Group XXIX] In a fluid-pressure, powerassisted, vehicle steering mechanism of the kind in which a slight lost-motion between a manually-actuated input member 29 and the output member 18 permits a lever 23 to actuate a pair of valves 26, 27 each of which controls the fluid pressure in one end of the cylinder 10 of the power-applying motor and also applies back to the lever 23 reaction force proportional to the pressure acting on the appropriate side of the piston 21, the ratio of the distances between the pivot C of lever 23 and the points A, B at which the reaction forces are applied thereto is equal to the ratio of the effective areas of the two sides of piston 21. As shown, the piston is relatively fixed with the cylinder sliding thereover, and the valves 26, 27 are integral with the cylinder. Input member 29 constitutes a drag link connected through a drop arm to the usual steering box, and output member 18 is connected to the steerable wheels through a ball- and-socket joint and a steering arm. Each of the valves slides in a ported sleeve and is provided with a control land 45 having negative lap in respect of a co-operating groove in the sleeve so as to give a continual circulation of fluid between the two ends of the cylinder when the valves are in the neutral position. Each valve is loaded by two springs 37, 38. In operation, if arm 23 is moved clockwise, as shown in the figure, an increased flow of the pressure fluid applied to port 49 of valve 27 takes place and passes through passages 42 to the interior of the valve and through a conduit (not shown) to the left hand end of the cylinder where an actuating pressure builds up. The movement of valve 26 to the right connects the right hand end of the cylinder through the interior of the valve and passages 44 to the exhaust space in which lever 23 is housed.
Patent GB-1308221-A (GB)
Title: Method of constructing a multi-storey building
IPC: E04B1/348
Filed: 1970-03-20
Abstract: 1308221 Platform elevators; cradles NATIONAL HOUSE INDUSTRIAL CO Ltd and NIPPON STEEL CORP 20 March 1970 [20 March 1969 (2)] 13586/70 Heading B8H [Also in Division E1] A multi-storey building is erected by first constructing a three-dimensional skeleton framework A and a series of prefabricated room units B, then mounting each unit on a carrier C which is lifted into alignment with a given space in the framework whereby the unit is then moved horizontally into position and fixed to the framework. The carrier is provided with lifting lugs 11, flanged guide rollers 12 and a belt, chain or roller conveyer 10 which may be vertically adjusted by a series of jacks 25. Smooth belts may be used or belts having projections to engage projections on the underside of the unit B. Alternatively, the unit may be provided with a pair of racks on its underside to be engaged by toothed guide wheels rotatably mounted on the base. The conveyer may be driven by an electric motor through suitable reduction gearing or the carrier may be provided with frictional wheels rotatably mounted on the base in which case the unit B is moved manually or by means of a winch pulley arrangement. For minor details the Specification and remaining drawings (not shown) should be referred to. Reference has been directed by the Comptroller to Specification 1,067,888.
Patent GB-1040244-A (GB)
Title: An inverter arrangement
IPC: H02M7/48
Filed: 1963-04-05
Abstract: 1,040,244. Automatic control of waveforms. LICENTIA PATENT VERWALTUNGS-G.m.b.H. April 5, 1963 [April 5, 1962], No. 13624/63. Addition to 1, 036, 464. Heading G3R. [Also in Division H2] An inverter 1 of the kind disclosed in the parent Specification delivers at a high frequency alternate positive and negative pulses whose width is modulated by a low frequency signal applied at 8. The inverter output is filtered at 4, 5 and the low frequency component fed to a load 3. A voltage ui proportional to the load current is compared with a sinusoidal reference voltage u s  to provide the control signal at 8. In this way the load current is made to follow the waveform as well as the magnitude of the reference.
Patent GB-886532-A (GB)
Title: Improvements relating to supports for walls and the like for buildings
IPC: E04B2/62
Filed: 1958-04-30
Abstract: 886,532. Structural metal members; walls; glazing. KOLLER, E. April 30, 1958 [May 3 1957], No. 13810/58. Classes 20(2), 20(3) and 20(4) In a building a joint between an outer wall and an inner wall comprises three vertical U-section girders 3, 4, 5 each comprising flanges 9, the ends 16 of which are bent inwardly through 45 degrees and then outwardly to form angle pieces 16, 7. The space between the angle pieces (which is half that of the web 8 of the girder) is bridged by welded distance plates 10 which are loosely connected by a common spacer plate 11. The space between the girders 4 and 5 is bridges by a bar 27 containing services 29. Cladding plates 19, glass 21 and a door 22 hinged at 23 are secured by screws 17. Horizontal girders supporting flooring and roofing are illustrated in Figs. 4 and 5 (not shown). The corner of the web 8 may be bent in to provide a recess for a door. (Fig. 6, not shown, refers).
Patent GB-884513-A (GB)
Title: Improvements in or relating to apparatus for the manufacture of pneumatic tyres
Inventor: LOWE JACK MILNER
IPC: B29D30/32
Filed: 1957-05-01
Abstract: 884,513. Tyre building apparatus. DUNLOP RUBBER CO. Ltd. April 22, 1958 [May 1, 1957], No. 13813/57. Class 144 (1). A radially expansible tyre building drum 1 has a cylindrical coaxial ply end support 2, 3 respectively, at each end carrying an inflatable annular air bag 21, the support providing an abutment 15a for a portion of the inner periphery of the bag so that, on inflation, the outer periphery of the bag moves axially inwardly to roll the ply ends 28a (28b) supported thereon around the associated bead core 29 (30), located at the drum end, and on to the centre protion of the plies 28 on the drum 1. As shown the drum 1 comprises a cylindrical shell 5 mounted on a shaft 4 and carrying an inflatable annular tube 6 which is surrounded by a cylindrical series of rigid segments 7 movable radially between end stops 8, 9 and urged radially inwardly by an enclosing thick cylindrical rubber sleeve 10 forming the drum surface. The sleeve 10 is axially located on the segments by an inner peripheral groove 11 engaged over radial keys 7b on the segments, and the ends of the sleeve 10 carry detachable rubber shoulder members 12. Each ply end support comprises a cylindrical shell 13 intermediate the drum end and a second cylindrical shell 14, the latter carrying inflatable annular tubes 16 for expansion of an enclosing series of segments 15. The segments 15 have stops 18, 19 at their ends which ensure that on inflation of the tubes 16 the segments assume a frusto-conical shape tapering towards the drum 1 and providing a radial abutment surface 15a facing the drum 1. The segments 15 and the shell 13 together support the annular air bag 21 which is moulded to the form shown in Fig. 9 with an inner peripheral nose ring 24 to locate around the ends of the drum segments 7. The nose portion 22 of the bag 21 adjacent the building drum is more stretchable than the remainder of the bag, which may be of different rubber, or of the same rubber reinforced by cotton-covered rubber thread, crimped cords or knitted fabrics of steel or textile cords. An axially extending groove is moulded in the inner wall of the bag leading to the inflation inlet 25 to ensure complete deflation, despite any rucking, during use. To provide for the additional chafer and lining plies 27, 26 the shell 13 is formed adjacent the drum 1 with a reduced diameter portion. In use the drum 1 is expanded to consolidate the plies against the beads, after which the ply ends are successively rolled around the beads as shown in Figs. 4, 5. In an alternative construction the segments 15 are dispensed with, the tube 16 being formed to provide the abutment surface on inflation. Specification 872,038 is referred to.
Patent GB-760626-A (GB)
Title: Improvements in or relating to diaphragms for pneumatic tyres
IPC: B60C5/12
Filed: 1954-05-12
Abstract: 760,626. Pneumatic tyres. DUNLOP RUB. BER CO., Ltd. May 12, 1954 [May 14, 1953], No. 13820/54. Class 144 (2). A safety diaphragm for inner tubes or tubeless tyres comprises an annular rubber sheet resiliently stiffened, in a radially outwardlyarched shape in cross-section, by a length, or lengths, of filamentary material formed into circumferentially spaced, laterally extending arches, the extremities of which are looped. The diaphragm may be bonded at its side edges to the inner wall of an inner tube, or may have inextensible beads connected by a rubber flap which converts the diaphragm to tube form and seats on the wheel rim base. As shown in Fig. 5, the reinforcement may comprise circumferentially-spaced loops of spring wire 36 sandwiched between two layers of oppositelydirected bias cut fabric cord plies. The wire 36 may alternatively be looped as shown in Fig. 6, or where bead wires 40, 41 are incorporated, as shown in Figs. 7 and 8. In further arrangements bare or rubber-coated looped wire may be laid on a sheet of square woven fabric and if bare, covered by a sheet of vulcanizable rubber stock. In all the above constructions the diaphragm is subsequently shaped and vulcanized. Specification 701,240 is referred to.
Patent GB-705856-A (GB)
Title: Process for the continuous casting of metallic materials
IPC: B22D11/049
Filed: 1951-06-11
Abstract: 705,856. Continuous casting-machines. WIELAND-WERKE AKT.-GES. June 11, 1951 [July 21, 1950], No. 13851/51. Class 83 (1) In a method of continuously casting metal in a cooled metal mould having a non-metallic lining, the heat extracted from the casting within the mould is only sufficient to form a skin thick enough to retain the molten core, the main heat extraction being effected outside the mould. The mould comprises an inner member 1 and an outer member 2 forming between them an annular space 6 for cooling water which is supplied by a pipe 5 and leaves through slots 4 by which it is directed on to the emerging casting. The member 1 is centred within the member 2 by screws 3. A collar 8 supports a graphite lining 7 which is kept at temperatures below 6000 C. Non-oxidizing gases may be supplied above the molten metal in known manner.
Patent GB-981289-A (GB)
Title: Copolymers of aliphatic aldehydes and process for their manufacture
IPC: C08G2/00
Filed: 1961-04-17
Abstract: Copolymers are prepared by copolymerizing a mixture of at least two saturated aliphatic aldehydes each containing from 2 to 9 carbon atoms per molecule at - 30 DEG  to - 120 DEG  C. using as catalyst 0.0005 to 1% by weight of the mixture of at least one anionically active organo-metal or organo-boron compound. Specified aldehydes are acetaldehyde - propionaldehyde, acetaldehyde-isobutyraldehyde, and 3 - 3 - 5 - trimethyl - hexanol - propionaldehyde. Specified catalyst are tributyl boron, triethyl, triisobutyl or trioctyl-aluminium diethyl, diisobutyl aluminium hydride, ethoxy-diethyl, di-n-butoxy ethyl or tri-isopropyl aluminium, diethyl or butoxyethyl zinc and diethyl cadmium.  The copolymerization may take place in bulk or in the presence of an aliphatic, cycloaliphatic, aromatic-aliphatic or unsaturated hydrocarbon solvent.
Patent GB-852582-A (GB)
Title: Improvements in and relating to roll film photographic cameras
IPC: G03B19/04
Filed: 1957-05-01
Abstract: 852,582. Photographic cameras. ADOX KAMERAWERK G.m.b.H. May 1, 1957 [May 2, 1956], No. 13913/57. Class 98(1) A roll film photographic camera has an interchangeable magazine which includes a film advance mechanism with a transport roller engaging perforations in the film and connected to a film take-up spool through toothed gears, and an exposure counter connected to a small sprocket which engages the film perforation independently of the film advance mechanism. As shown in Fig. 1, the magazine 11 which is inserted into the camera 1 includes a film transport roller 16, which is disengageably connected to a shaft 63 driven by a lever wind and gears on the camera body through a coupling 57, 59. The roller 16 is geared to a film take-up spool 17. The film (not shown) is drawn from a cassette inserted in a chamber 603, across slideways 602 formed in a frame 35 on opposite sides of the exposure aperture, over the roller 16 to the take-up spool 17. A measuring sprocket 601 housed in a slot in frame 35, on the opposite side of the exposure aperture to the roller 16, engages the perforations in one side of the film. The sprocket 601 is keyed to a shaft 608, Fig. 8, which has a pivot 631 at one end turning in a bearing 632 formed in frame 35, and extends through an oversized bore in frame 35 to a journal in the wall of the magazine 11. Shaft 608 carries a gear train 623, which drives a wheel 626 through a gear train 624<1>, 624<11>, 625<1>, 625<11> (see also Fig. 7). A counter dial 7 is mounted in a recess on the top of the magazine 11 and is read through an aperture in the top of the camera casing. A light-trapping channel 618, embracing the edge of dial 7 has a portion cut away at 620 to allow adjustment of the dial 7, which is mounted on a wheel 627, which frictionally engages wheel 626 under the influence of a spring 628. Rotation of the dial 7 against the direction of the arrow 630 may be prevented by a coil spring embracing the wheel 627.
Patent GB-670419-A (GB)
Title: Improvements in or relating to fluid-pressure servomotor control systems
IPC: F15B9/08
Filed: 1947-05-23
Abstract: 670,419. Pistons. FOXBORO CO. May 23, 1947. [Aug. 21, 1946] No. 13925/47. Drawings to Specification. Class 122(i). [Also in Group XXIX] A diaphragm piston actuating a valve is made of beryllium copper, is cupped and formed with radially extending depressions.
Patent GB-1445558-A (GB)
Title: Staging supporting brackets
IPC: B63C5/02
Filed: 1972-06-22
Abstract: 1445558 Brackets KWIKFORM Ltd 26 July 1973 [22 June 1972] 14002/76 Divided out of 1445557 Heading A4B A support bracket for staging especially on ships, comprises a cantilevered support arm 16 provided at its inner end with a hook-like element 18 which in use is passed through an horizontally elongate slot 21a in a wall 3 or 20 or other support 30 carried by a wall to bear on the rear of the wall 3 or support 30, a thrust member carried beneath the arm 16 to bear on the front of the wall 3 or 20, and a locking-pin 29 which is slidable to and from a position in the slot 21a to prevent rotation and hence disengagement of the bracket. To fit the bracket it is rotated through 90 degrees from its operative position so that the hook element 19 may pass through the slot 21a. The thrust member may comprise one or more thrust plates 25 carried by bracing struts 26, 27, as in Fig. 1. Alternatively, Fig. 6, the thrust member may comprise one or more bolts 28 engaged with nuts 28c secured to the plate 25.
Patent GB-1388551-A (GB)
Title: Ballast
IPC: B63B43/08
Filed: 1971-05-10
Abstract: 1388551 Ballasting PROW MARKETING Ltd G C RICHARDS and R A PAGE 9 May 1972 [10 May 1971] 14088/71 Heading B7M Ballast which is said to be particularly suitable for sailing boats comprises a closed inner bag of flexible material, substantially filled with a plurality of metal particles and contained within a closed and watertight outer bag of flexible material. The metal particles may be flat circular discs which may be coated with a lubricating liquid. There may also be a lubricating liquid between the bags to reduce friction between them.
Patent GB-731528-A (GB)
Title: Improvements in or relating to drilling machines
IPC: E21B15/04
Filed: 1951-06-14
Abstract: 731,528. Percussive drills. PITTSBURGH CONSOLIDATION COAL CO. June 14, 1951 [June 22, 1950], No. 14100/51. Class 124. [Also in Group XXII] A drilling-machine comprises a supporting frame forming a longitudinal guideway, a sliding frame mounted in the guideway of the supporting frame and forming a second guideway in which a drill is mounted, an abutment at the front of the sliding frame to engage the rock face being drilled, motor connections between the frames to move the sliding frame so that the abut. ment engages the rock face and between the drill and the sliding frame to urge the drill along the guideway of the sliding frame. As shown, a rotatable boom 4, which may be swung horizontally and vertically on pivots 32 and 37 respectively attached to a mobile platform 1, carries a rotatable mounting 75 to which is pivoted, at 96, a frame structure 5 comprising a supporting frame 98 within which is a sliding frame 106 in which is slidingly mounted a drill mechanism 135. The sliding and supporting frames may be tubular, the former moving telescopically with respect to the latter. A continuous chain feeds the drill into the rock face, and a cable gear 125 presses the abutments 197 against the rock face. The movements of the various movable parts of the apparatus may be operated by hydraulic cylinders which may trap the liquid and so lock the part against further movement. A brake on the supporting frame may hold the sliding frame against longitudinal movement during the feeding of the drill. The mechanism 135, which may be disconnected from the drill, may carry a cradle supporting a timber to be placed in position. The arrangement of the rotatable parts is such that the drill may be placed to drill a hole in any position, Figs. 26, 27 and 28 (not shown). Hydraulic fluid is supplied to the hydraulic cylinders by an electrically-driven pump. Specification 731,567, [Group X], is referred to.
Patent GB-350185-A (GB)
Title: Improvements in or relating to alternating current electrical instruments and electro-magnets therefor
IPC: G01R11/36
Filed: 1930-05-08
Abstract: 350,185. Supply, current, and power meters ARON ELECTRICITY METER, Ltd., HILL E. W., WHITE, A., anc RIORDAN, E. J., 80 Salusbury Road, Kilburn London. May 8, 1930 No. 14185. [Class 37.] An electromagnet of E form for alternating-current instruments and meters is made in two parts, one of U-shape and the other of T-shape, in order to facilitate the application of the winding. As shown applied to the pressure magnet of an induction motor meter, the core is formed of a U-shaped part 1 having limbs 5, 7 extending inwardly at 9, 11, and a T-shaped part 21 having its top portion 23 of substantially the same length and width as the plane bottom surface of the interior of the U-section. The pressure coil 31 is slid lengthwise on to the leg 25 of the T-shaped part 21, which is then slid into position within the part 1 and secured by screws 32 of magnetic material so as to make a good magnetic joint.