baber/WOPTO huggingface dataset:
Patent GB-576801-A (GB)
Title: Improvements in and relating to electrical terminal supports
IPC: H01F41/10
Filed: 1944-05-04
Abstract: 576,801. Mounting terminals. BRITISH THOMSON-HOUSTON CO., Ltd. May 4, 1944, No. 8441.. Convention date, May 5, 1943. [Class 38 (i)] A terminal for a coil 10 comprises a conductor 16 connected at one end to a lead 14 of the coil, and inserted in an apertured insulating bushing 15, 15<1>, secured by the plasticcement impregnated sheets 22 of flexible insulating material, e.g., glass cloth, on a cement coating 24 to the surface of the coil. Fig. 4 shows another arrangement in which the bushing 40 houses tubes containing two leads 42, 43 and is attached to the coil surface by hardenable insulating cement 47 which flows into a neck portion 48 of the bushing..In Fig. 3 (not shown), the two leads are replaced by a single lead. Suitable cements are set out in the Specification.
Patent GB-713440-A (GB)
Title: Improvements in or relating to vapour electric arc converters
IPC: H01J13/20
Filed: 1951-04-11
Abstract: 713,440. Metal-vapour converters. GENERAL ELECTRIC CO., Ltd., and GALLIZIA, E. June 19, 1952 [April 11, 1951], No. 8453/51. Class 39(1) A single-anode pumpless metal-clad converter has a tank which is stepped at one side, the step providing a mounting for the anode. A more compact arrangement is secured. As shown the converter comprises a steel tube 10 closed at the top by a steel panel 13 and having a part cut away and closed by steel plates 11, 12 on which is mounted the anode tube 40. Deionizing grid 41, control grid 49, graphite anode 43 together with its frusto-conical seal 45 are mounted in the tube. The anode stem is surrounded by a ceramic insulator 48. The mercury container 20 projects into the tube 10 and condensed mercury returns to the cathode through the slots 16; the container 20 is carried by a frusto-conical ring 19 which fits into a ring 17 welded to the bottom plate 14. The steel container is coated internally with vitreous enamel. A steel plate 25 closing the bottom of the container is secured through V-shaped packing to a flared welded ring 21. Cooling tubes 32 are provided.
Patent GB-931897-A (GB)
Title: Chloroprene polymers
IPC: C08L11/00
Filed: 1962-03-06
Abstract: An elastomeric composition consists of an intimate blend of from 50 to 75% by weight of component (a) which is a benzene soluble solid polymer that is either a homopolymer of chloroprene or a copolymer prepared by polymerizing chloroprene with up to 20% by weight of 2,3-dichloro-1,3 butadiene; and from 50 to 25% by weight of component (b) which is a xylenesoluble solid polymer that is a homopolymer of 2,3-dichloro-1,3 butadiene or a copolymer prepared by polymerizing 2,3-dichloro-1,3 butadiene with up to 15% by weight of chloroprene; provided that when the percentage of component (a) in the blend is less than 55%, component (b) must be a copolymer prepared by polymerizing 2,3-dichloro-1,3 butadiene with 7 to 15% by weight of chloroprene.  If desired a benzene-soluble fluid polychloroprene may be used in the blend in an amount up to 15% by weight based on the total weight of components (a) and (b) in the blend.  The elastomeric compositions should preferably have a tensile strength of at least 1,900 p.s.i. and should exhibit a die swell of not more than 1.95. The polymers of component (a) are preferably prepared by partial polymerization of the monomer composition in aqueous emulsion, particularly in the presence of an aliphatic mercaptan having 8 to 18 carbon atoms and the optional benzene-soluble fluid polychloroprene component may be similarly prepared.  The elastomers of the invention may be compounded using the usual ingredients and in the examples a fairly high loading of clay is used.  The elastomers may be used in gum stocks and stocks reinforced with carbon black and waxes, oils and other softening agents are added.
Patent GB-1045425-A (GB)
Title: Improvements relating to arithmetic and logic units
IPC: G06F13/38
Filed: 1965-03-01
Abstract: 1,045,425. Electric digital calculators. INTERNATIONAL BUSINESS MACHINES CORPORATION. March 1, 1965 [April 6, 1964], No. 8602/65. Heading G4A. An arithmetic and logic unit (ALU) produces a result word by operating in parallel simultaneously on first and second multidigit binary operands and has unified circuitry selectively operable to perform in one pass through the unit addition or subtraction of the operands or logical connective operations (e.g. AND, OR, EXCL-OR) on like-ordered digits of the respective operands. The operation performed is selected by control signal inputs to the logic circuitry constituting the ALU. Each operand has 8 bits which may be part of a larger operand, the parts of which are dealt with successively. The 8 bits may be purebinary-coded or constitute two binary-codeddecimal (BCD) digits. The two 4-bit halves of one of the operands may be interchanged and/or either half eliminated during transfer to the ALU. The other operand may be complemented (for subtraction) and if BCD each decimal digit incremented by six. In the latter case, the appropriate BCD digits of the result word are decremented by six afterwards. The binary digits of the result word each appear in true and complement form on a pair of lines and an error signal is produced if any digit has both its lines energized.
Patent GB-830478-A (GB)
Title: Improvements in or relating to self regulating reciprocating piston pumps
IPC: F04B49/24
Filed: 1957-03-15
Abstract: 830,478. Swash plate pumps. RECHERCHES ETUDES PRODUCTION R.E.P. March 15, 1957 [March 15, 1956; April 12, 1956], No. 8694/57. Class 102(1). In a swash plate pump in which pistons 11, Fig. 1, are reciprocated in cylinders 2 of a stationary cylinder block 1, liquid enters at 10 to a chamber 9 and passes to the cylinders through a semi-circular slot 33, Fig. 3, of a rotating plate 32 fixed to the drive shaft 13 of the pump and an axial passage 31 acting as an inlet orifice. The plate 32 is so arranged with respect to the swash plate that the slot 33 allows liquid to flow to each cylinder during the whole of its suction stroke. Liquid is delivered from each cylinder through a lateral passage to a chamber 35 containing a non-return valve and thence through passages 39 to a chamber 40 where it passes to the pump outlet 42. Arranged on the valve plate 32 on the opposite side to the slot 33 are a plurality of orifices 43 1 , 43z ... which are connected by passages 44 1  ... to orifices 45 1 , 45z ... of axial bore 46, the orifices 45 1 , 45 2  ... being arranged helically over the bore. In the bore 46 a slide 47-48 is urged to the right by a spring 51 against a differential piston which is normally held in the position shown by a tap 54 under the influence of spring 55 in which position the hollow portion 48 of the slide 47-48 covers the orifice 45 1  45 2 , ... One of the chambers 35 permits liquid at delivery pressure to pass through passage 57 to chamber 58a and acts on the differential piston 52. When the delivery pressure exceeds a predetermined value the piston 52 is urged to the right and allows the slide 47-48 to move to the right and uncover the first orifice 45 1  and at the beginning of the delivery stroke of each pump piston liquid is bypassed through orifice 31, orifice 43 1  passage 44 1  and orifice 45 1  to the bore 46 where it flows through passages 50 of the slide portion 48 to the inlet chamber 9. Should the delivery pressure still increase the slide 47-48 moves to the right due to further movement of piston 52 and opens orifice 45z and so on. In a modified form the orifices 43 1 , 43z ... pass right through the plate 32 and a segment in contact with the plate 32 and rotating with it is subjected to an angular displacement with respect to the plate in response to an excess delivery pressure and is provided with apertures which partial overlap the orifices 43 1 , 43 2  ... in turn the arrangement being such that as one orifice is partial overlapped by an aperture the previous orifices remain overlapped by their corresponding apertures. The number of orifices 43, is dependent upon the form of the inlet orifice 31 the condition being such that during the discharge stroke the inlet orifice 31 is always in communication with one of the orifices 43 1 , 43 2 ....
Patent GB-439608-A (GB)
Title: Improvements in or relating to radio energy reflectors
IPC: H01Q15/14
Filed: 1935-03-20
Abstract: 439,608. Directive wireless signalling. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. March 20, 1935, No. 8732. Convention date, March 21, 1934. [Class 40 (v)] An apertured reflector for ultra short waves is constructed so that the metal parts surrounding the individual apertures are positively maintained in electrical and mechanically firm connection. In the case of a wire mesh d, Fig. 1, the separate wires are soldered or welded together as at k or provided with a coherent metallic coating over its surface by spraying or electrodeposition. Alternatively the reflector may consist of a perforated sheet of metal, Fig. 2. In each case the apertures are small in relation to the working wave length and the ratio between the wire diameter x, Fig. 1, and size of mesh s or between "bridge width" t, Fig. 2, and maximum aperture diameter z is greater than 1 : 20.
Patent GB-1384275-A (GB)
Title: Drying apparatus for ceramic articles
IPC: F26B15/18
Filed: 1972-02-25
Abstract: 1384275 Drying of ceramic articles M LEISENBERG 25 Feb 1972 [25 Feb 1971 27 April 1971] 8773/72 Heading F4G Moulded or extruded ceramic articles 35-40 are conveyed on cableways 31-33 through a drying chamber having air nozzles 317 arranged in groups 318, 318<SP>1</SP>, the spacing between adjacent nozzles being at least twice the spacing of the articles 35-40 on the cableways 31-33. The nozzles are located on both sides of, or above and below the cableways 31-33, and discharge air intermittently. The duration of, and time between, discharges is variable. The articles 35-40 comprise lattice bricks having apertures 312.
Patent GB-740012-A (GB)
Title: Improvements relating to artificial sponges or absorbent pads
Inventor: SUMMERLIN CHARLES SIDNEY JAMES
IPC: B29C44/00
Filed: 1953-03-30
Abstract: 740,012. Sponges. PLYSU PRODUCTS, Ltd. March 24, 1954 [March 30, 1953], No. 8779/53. Class 131. [Also in Group V] A film of polyvinyl chloride, with a suitable content of plasticizer, is bonded to one face of an artificial sponge made from viscose material. As shown, a rectangle of viscose sponge 1 is placed in a mould 3 and covered, to the top of the mould, with a paste resin which is gelled by infra-red heating to provide a layer 2 of polyvinyl chloride embossed at 4, with a cold tool, while it is still hot.
Patent GB-783992-A (GB)
Title: Improvements in or relating to apparatus for washing and sterilising tableware
IPC: A47L15/00
Filed: 1955-03-25
Abstract: 783,992. Door-operating: appliances. FRECH, W. E. March 25, 1955 [March 29, 1954; Aug. 24, 1954; March 2, 1955], No. 8885/55. Class 65(1) [Also in Group XXIII] Relates to means for opening simultaneously the doors of an apparatus for washing and sterilizing table ware (see Group XXIII). Oppositely arranged rollup shutter type doors 18, 19, Figs, 4 and 5, are provided whereby a table ware container 34 may enter the sterilizer 15 through the door 18 and leave through the door 19. Small rollers 22 on the side edges of the doors 18, 19 engage in pairs of guide rails 20, 21 at each side of the sterilizer casing. Members 30. 31 each having cranked ends, are rigidly connected to the shutters 18 and 19 respectively and the cranked ends are connected with the lower and upper runs, respectively, of endless flexible strips 26, 27 running over roller pairs 28, 29 disposed on the upper portions of the casing sides. A handle 32, passing through a longitudinal slot 33 in the sterilizer casing top 25, is connected to the flexible strip 26. When moved to the right in Fig. 4, the handle causes both door to open and when moved to the position shown causes the doors to close. The operating control of the doors may be coupled to the steam or hot water supply valve for the sterilizer distributer 35. The strips 26, 27 may be replaced by chains or the like and the operating handle may be fitted to one of the doors instead of as indicated; moreover each door may have a handle.
Patent GB-254783-A (GB)
Title: A new or improved machine for making hollow or tubular metal members
IPC: B21C37/12
Filed: 1925-04-03
Abstract: 254,783. Airship Guarantee Co., Ltd., and Wallis, B. N. April 3, 1925. Tubes. - A machine for making hollow or tubular metal members, of round or other section, particularly for use in the frames of aircraft, comprises a hollow mandrel 1. which is given a reciprocating screw-like motion, metal strip being gripped on the mandrel and wound thereon during the forward movement thereof and released during the rearward movement of the mandrel. The mandrel 1 is mounted in bearings 3, 4 carried by slides which are reciprocated by a cam 18 on a constantly driven shaft 13. A cam 25 on the shaft 13 rocks a shaft 14 which by crank linkage 21, 22, 20 rocks the mandrel during its reciprocation. The metal strip 2 which is preferably made of an alloy sold under the Registered Trade Mark " Duralumin " is guided to the mandrel through a tensioning device 8 and may be provided with rivet holes 9 before being wound, by drilling or punching devices actuated by cams &c. on the shaft 13. The strip is held on the mandrel by a gripper 6 which is preferably pneumatically actuated or controlled by a cam 29 and link 30. This gear also controls a riveting device 12. The gripper and riveting devices are rocked to remain in the same position relatively to the mandrel, by crank mechanism 27, 28 actuated by the shaft 14. The rivets are inserted so that their heads lie within the tubular member, the mandrel being grooved to accommodate the rivet heads and, if necessary, any offset which may be given to the edges of the strip. The finished portion of the tube may be received on a stationary mandrel 33 having a shank 34 passing through the mandrel 1. A stationary gripper actuated by a cam 32 retains the work on the mandrel 33 during the retrograde movement of the mandrel 1. In a modification,. the strip is provided with rivet holes after coiling, the drilling or punching device 35 being actuated by a cam 36 and link 37 in conjunction with a rack and pinion spindle feed motion. The stationary mandrel 34 is formed with a slot accommodating a tube through which the rivets are fed from a ropper 39 by a cam actuated pusher 43, the rivets being delivered through an aperture in the mandrel 1, immediately after the drilling operation. The machine when operating on " Duralumin" is intended to complete the formation of the tubular member, while the work is at a temperature of about 480‹ C. Specifications 26322/07, [Class 82, Metals and alloys], 6485/10, [Class 72, Iron &c.], and 254,782 are referred to.
Patent GB-413077-A (GB)
Title: Utilization of small coal and coal-dust and similar fuels
IPC: C10L5/34
Filed: 1933-03-24
Abstract: 413,077. Preparing fuel. HALES, J. S., Fuel Research Station, Blackwall Lane, East Greenwich, London. March 24, 1933, No. 8915. [Class 50.] Small coal, coal dust, &c. is enclosed in containers or coverings formed of fabric or paper in association with a thin layer of heat-resisting or fireproofing material which permits part or all of the contents to cake together under the action of heat and is eventually destroyed or broken down. The fuel bodies are of a size enabling them to be placed in a stove or open grate. The container which may be perforated may be formed of a thin sheet of metal or metal foil such as aluminium reinforced with fabric or paper as a backing ; or the metal may be sprayed upon the fabric or paper. Mixtures of coal and coke or low temperature coke with or without substances such as pitch, tar, &c. may be employed and the fuel bodies may be preliminarily heated partially to cake or carbonize their contents.
Patent GB-418798-A (GB)
Title: Improvements in or relating to processes of hydrolizing titaniferous solutions
IPC: C01G23/053
Filed: 1934-03-22
Abstract: <PICT:0418798/III/1> Titaniferous solutions are hydrolysed by heating to and maintaining at the necessary temperature a continuously flowing stream of the solution.  When the desired degree of hydrolysis is effected the solution is quickly cooled.  Solutions containing up to 4 per cent of titanium oxide and with 5--15 per cent of free sulphuric acid may be advantageously employed.  Extenders such as calcium or barium sulphate may be present, or a titanium sulphate solution containing phosphoric acid be used.  Hydrolysis may take place in a parallel flow double pipe type of heat-exchanger 7. Solution is supplied under pressure by a pump 5 to the inner tube 8 and steam under pressure through a pipe 13 to the outer pipe 10. Hydrolysed solution is cooled in a "flash" cooler 26.  The overall length of the hydrolysing path may be 1000--1500 feet, the hydrolysis temperature be 255--265 DEG  F., and the solution be retained in the hydrolyser for \ba1/2\be hr.
Patent GB-340884-A (GB)
Title: An ash-retaining attachment for cigarettes
IPC: A24D1/12
Filed: 1930-03-21
Abstract: 340,884. Ash-retaining attachments for cigarettes. ALLEN, A. G., 24, North Crescent, Haverfordwest, Pembrokeshire. March 21, 1930, No. 9013. [Class 130.] An ash-retaining tube, to be fitted over a cigarette when smoking, consists of a perforated metal tube with longitudinal corrugations 5 and a detachable perforated cap 3 fitting on the uncorrugated end 4 of the tube. The tube is about ¥ of the length of an ordinary cigarette, and when fitted with a cigarette may be enclosed in a tubular container fitted with a cap.
Patent GB-126504-A (GB)
Title: Improvements in Electric Torches.
IPC: F21L4/00
Filed: 1918-05-31
Abstract: 126,504. Gibbons, F. J. J., and Efandem Co. May 31, 1918. Supporting.-A clip for supporting a torch has a part B bent at rightangles and provided with an aperture so as to pass over the screwthread of either end cap a of the torch, on which it is secured by screwing in the cap. This part may be circular or, to assist in preventing rolling, may be of square or other straight-sided shape. The free portion of the clip may have a key-hole slot b<2> for suspension from a nail or the like.
Patent GB-1311323-A (GB)
Title: Cameras
IPC: G03B7/083
Filed: 1970-02-25
Abstract: 1311323 Photo-cell circuit NIPPON KOGAKU K K 25 Feb 1970 [26 Feb 1969] 9125/70 Heading G1A [Also in Division G2]  A camera has the exposure time determined by an electronic control circuit having a differential amplifier 7, 8, to one input of which is applied a voltage which varies as a logarithm of the brightness of the scene to be photographed, to the other input is applied a voltage representing the setting of an exposure factor setting member of the camera, e.g. lens aperture, film speed and an indicator 12 is connected between the inputs to increase or decrease linearly the variations in the first voltage, the output current being used to charge a capacitor 9 in proportion to a value having the adjusted voltage as an exponent, the capacitor being charged in synchronism with the opening of the shutter until the capacitor is charged to a predetermined level to thereby determine the exposure time. The inputs may be applied to the amplifier via field effect transistors. A capacitor may be used to memorise the first input voltage when using intensity measurements through the objective of a reflex camera. Manual control of exposure time may be permitted, Fig.3 (not shown), the arrangement also permitting 'Bulb exposures'.
Patent GB-301261-A (GB)
Title: Improvements in or relating to vehicle brakes
IPC: F16D51/04
Filed: 1928-03-26
Abstract: 301,261. Maxted, H. P., and Alford &. Alder (Engineers), Ltd. March 26, 1928. Blocks and shoes acting on drums; band.-An internal expanding brake comprises a brakes member, parts of which are rigid and flexible respectively in a radial direction, one end of the member being mounted on a fixed pivot and the other being engagable by the cam or other operating means. The brake member shown comprises a pair of rigid shoes 6, 8 connected by a flexible band 9. Preferably the shoes are of pressed chancel section and the band 9 is of spring steel welded to the bottom walls of the shoes. The shoe 8 is anchored by a, pivot 7 to a dished plate bolted at 3 to. a flange on the axle tree. The plate is provided with a housing for a cam 5 which engages the end of the shoe 6. An adjustable stop 16 is provided for the shoe 8. Assuming the drum to be rotating clockwise, when the brake member is applied to the drum by the cam the frictional drag on the shoe 6 is transmitted to the shoe 8 and increases the pressure thereon. Instead of there being two rigid shoes only, a series of shoes may be provided at intervals along a flexible band member.
Patent GB-259840-A (GB)
Title: Improvements in railway rail anchors
IPC: E01B13/02
Filed: 1926-04-07
Abstract: 259,840. Marks, E. C. R., (P. & M. Co.). April 7, 1926. Creeping of rails. preventing. - Rail anchors, comprising a yoke with railbase engaging jaws 11, 12 at each end are so formed that alter one end 11 has been engaged with the rail the yoke has to be twisted and moved transversely of the rail to engage the other end 12. The jaw 11 may be offset greater than the jaw 12' and the jaws may be offset in the same or opposite directions. The jaw 12 may be offset on vertical or horizontal lines and may have an angular reinforcement to receive hammer blows. The upper edge of the anchor body may have a shoulder 17, Fig. 2, adapted to snap over the rail edge when the anchor is moved to its operative position. The shoulder 17 may be formed in the lower edge of the jaw 11. The jaw 11 may be bent U-shape, Fig. 12, and the other jaw 19 remain in the plane of the anchor body. The jaw 11 may be so shaped that it engages the rail only at the end of its lower edge, so as to bite into the rail flange.
Patent GB-940735-A (GB)
Title: Method of and apparatus for testing the performance of an optical system, for example, a lens
IPC: G01M11/02
Filed: 1960-03-16
Abstract: 940,735. Testing lenses photo-electrically. M. KUROKAWA. March 16,1960 [March 26,1959], No.9252/60. Heading G1A. In apparatus for determining a graphic representation of the contrast transfer function of an optical system such as a lens 2 (from which the optical quality of the lens may be assessed) a template 1, Figs. 1 and 2, comprising alternate opaque and transparent strips of progressively increasing width is moved in the plane of the template and in a direction at right angles to the strips at a varying speed by a cam 7 so that light passing therefrom through the lens and a slit on to a photo-cell 4 is varied at a constant frequency. The output from the cell passes through a lowpass filter 5 passing this frequency to a chart recorder and the image-forming quality of the lens can be estimated from the amplitude and phase of the recorded sinusoidal waveform.
Patent GB-1401606-A (GB)
Title: Device for cleaning the lenses of lighting units of motor  vehicles
IPC: B60S1/60
Filed: 1974-03-01
Abstract: 1401606 Cleaning vehicle head-lamp glasses DUCELLIER ET CIE 1 March 1974 [15 March 1973]  9262/74 Heading A4F Apparatus for cleaning the lenses of two spaced vehicle lamps 4, 23 comprises a driving assembly including a motor 5 driving a washing liquid pump 7, and via a worm gearing 8, 9, and cranks 10, 13, a hollow shaft 15 connected to two arms 16, 17 extending in generally opposite directions and carrying two wiper blades 18, 19 for cleaning the lenses, the driving assembly being disposed in or on a housing 2 carrying one of the lamps, i.e. the lamp 4. The pump 7 supplies washing liquid to the lenses via flexible tubes 20, 21.