baber/WOPTO huggingface dataset:
Patent GB-208742-A (GB)
Title: Improvements in joints for concrete pipes and the like
IPC: F16L51/00
Filed: 1922-07-22
Abstract: 208,742. Brougham, F. J., (Moir, D., and Buchanan, H.). July 22, 1922. Joints comprising packing swelled by fluid action; branches and mains, connecting; butt joints; joints with yielding inner part expanded. -In means for jointing concrete pipes &c. a ring of solid section, made of a material capable of absorbing moisture and swelling, has combined therewith at least one annular elastic sealing element so arranged that a portion of the ring is exposed to the pipe or like surface intended to be rendered liquid tight at two sides of the sealing element. In the construction, Fig. 1, the ends of the pipes a, b are enclosed in a ring d having an annular recess occupied by a wooden ring e, or filled with other material capable of absorbing moisture and swelling, elastic rings c of rubber &c. being provided in grooves in the pipe ends. A branch pipe may be connected by drilling and tapping the ring d, in this case of metal, and the wood ring e, the ends of the pipes a, b being suitably cut away. Fig. 2 shows a similar arrangement to Fig. 1 applied to the interior of the pipes in which the built-up or solid ring e is enclosed in a metal ring f and is provided with grooves receiving the elastic rings c. A metal ring may be fitted inside the ring e. In the modification, Fig. 4, a wooden ring i surrounded by a metal ring k is placed between the ends of the pipes a, b, the elastic elements j being accommodated in grooves in the ring i and corresponding pipe end.
Patent GB-712635-A (GB)
Title: Improvements in or relating to sheet delivery mechanism
IPC: B65H29/04
Filed: 1951-08-27
Abstract: 712,635. Sheet-delivery apparatus. TIMSONS, Ltd., and TIMSON, E. A. Aug. 13, 1952 [Aug. 27, 1951], No. 20153/51. Class 100 (1) A sheet delivery mechanism of the kind wherein sheets are delivered forwardly from a printing or like machine to an associated conveyer having grippers for seizing hold of the leading edges of the sheets and conveying them above a stack or pile when they are released is characterized in that means are arranged in association with an endless chain connecting the conveyer with the main machine drive and are operable once every delivery of a sheet or collection of sheets so as to temporarily retard the conveyer prior to release of the sheet or sheets therefrom. As shown the delivery mechanism comprises chains 1 furnished with cam-controlled grippers 2 which seize the leading edges of sheets or collections of sheets, one at a time, and release them over a pile P, the front edges being registered by stops 3. The chains 1 pass over sprocket wheels 4 on a driving shaft 5 to which is also secured a chain wheel 6 around which runs an endless chain 7 driven from a sprocket wheel 8 on a shaft 9 driven from the main machine, e.g. a printing machine 10. The chain 7 also passes over jockey sprocket wheels 15 mounted on either side of a lever 11 freely mounted on the shaft 5. A further sprocket wheel 17 over which the chain 7 passes is fixed on a shaft 16 driven by the chain 7 so that it executes one revolution for each delivery cycle. Secured to the other end of the shaft 16 is a disc 18 to which is eccentrically fitted by a crank pin 19 a rod 20 the other end of which is connected to the lever 11. Thus as the disc 18 is rotated the lever 11 is swung up and down, the upward swing being timed to correspond with the release of the sheets on the pile P and resulting in a retarding of the speed of the conveyer 1. A spring guide pulley 25 is provided to take up slack in the chain.
Patent GB-579717-A (GB)
Title: Improvements in and relating to high frequency heating arrangements
IPC: H05B6/36
Filed: 1944-10-18
Abstract: 579,717. Electromagnetic induction heating. PHILIPS LAMPS, Ltd., and PINKNEY, A. J. Oct. 18, 1944, No. 20179. [Class 39 (iii)]. In an electromagnetic induction heating apparatus an inductor 1 of square section copper tubing is coupled to a high frequency electric source and provided with cooling fluid connections as at 3 and a conductive concentrator, e.g., of copper, comprising a hollow cylinder 4 with cooling fluid connections 7, 8, and an annular block 5, a common radial slot extending through both. The aperture in the block 5 and an insulating annular member 18 form a seating for interchangeable adaptor rings as at 15, each having a radial slot 17 and an aperture 16 to receive the workpiece which may be located therein by a jig carried by the annulus 18. The ring 15 may be hollow to receive a cooling fluid. The slot 17 need not register with the slot in the block 5 when the ring is insulated therefrom, as by a layer of niica. In a modification the adaptor ring 15 is of conical form and the aperture in the block 5 forms a corresponding conical seat. The slots are arranged in register with a spider bearing against the bottom of the block 5, carrying bolts to clamp the ring 5 in position.
Patent GB-749969-A (GB)
Title: Improvements in or relating to the production of laminated magnetic cores
IPC: H01F41/02
Filed: 1954-07-09
Abstract: 749,969. Transformers and inductors. VACUUMSCHMELZE AKT.-GES. July 9, 1954 [Oct. 31, 1953], No. 20205/54. Class 38 (2). In order to exert an influence on the magnetic properties of the material of a laminated magnetic core, the laminations are subjected to a mechanical stress by introducing a material such as ethoxylene resin between the laminations when the resin is in a liquid state. The resin adheres to the laminations and when contraction of the resin takes place upon cooling the laminations will be placed under the desired mechanical stress.
Patent GB-575167-A (GB)
Title: Improvements in straining or filtering apparatus for liquids
IPC: B01D29/46
Filed: 1943-12-03
Abstract: 575,167. Filters. AUTO-KLEAN STRAINERS, Ltd., and ENGLISH, L. W. Dec. 3, 1943, No. 20233. [Class 46] In a filter for liquids, of the kind in which the liquid flows through slots formed between parallel co-axial filter elements of similar shape but of different sizes, the outer edge of one filter element has the same dimensions as the inner edge of the adjacent filter element, from which it is spaced axially, so that these edges define filtering slots having no appreciable length in the direction of flow of the liquid, and scraper elements mounted independently of the filter elements for movement relative thereto have each an operative edge adapted to contact at least one of the slot-defining edges of a pair of adjacent filter elements and to extend across but not into the slot between such elements. In the construction shown in Figs. 1 and 2, discs 14, 16 are arranged alternately on a spindle 1 which is rotatably mounted on a plate 6. The rim portion of each of the discs 14 has its internal diameter equal to the external diameter of the rim portion of each of the smaller discs 16. The discs 14, 16 are spaced apart by spacers 17. The filtering slots 18 are cleaned, on rotation of the spindle 1, by means of blades 10 mounted between washers 11 on a post 9. The inner ends of the blades bear on the outer edges of the discs 16. In a further modification shown on Fig. 3, three sets of discs 14, 16, 20 are provided, their edges defining filtering slots which are cleaned by means of blades 10, 21. In the arrangement shown in Fig. 6, comprising two sets of discs, the larger discs have each a cut-away portion 22 to provide a passage for discharge of dirt displaced during the scraping operation. The discs are separated by spacers 25 threaded on bolts 26. In another arrangement where the flow of liquid is outwards, internal scraper blades are provided adapted to extend to the inner edges of the larger discs and to wipe the opposed faces of the adjacent smaller discs. In the construction shown in Fig. 10, the scrapers 10 are spring- pressed towards the edges of the smaller discs which are formed each with a projection 32 adapted to displace the scraper during cleaning and thereby discharge dirt from the filtering slots. Specification 527,639 is referred to.
Patent GB-1365214-A (GB)
Title: Collapsible steering columns
IPC: B62D1/18
Filed: 1972-05-02
Abstract: 1365214 Collapsible steering columns CAM GEARS Ltd 1 May 1973 [2 May 1972] 20281/72 Heading B7H In a collapsible steering column in which first and second torque transmitting members are axially aligned, one member being capable of axial movement within the other, a separate third member is forced by one member into the other upon axial movement to be deformed and/ or deform the other of the members with consequent energy absorption. As shown in Fig. 2, upon an abnormal axial load on the column, shearing pins 20 on shaft 1 which extend into sleeve 19 welded to the tube 20, are sheared and nose 18 of shaft 1 will force the third member in the form of a plug 23 into lower tube 2 with consequent energy absorption. Upon column collapse keyways 16 on shaft 1 slide within corresponding keyways in sleeve 19. The plug 23 may suitably be made from silicone, or nitrile/ neoprene rubber or a polyurethane plastics. In another embodiment, Fig. 4, the shaft 30 has a head 38 of square cross-section which is located in a square section bore of sleeve 39 to provide the torque between the two members, the third member 43 being dish-shaped. In other embodiments, Figs. 5, 6 (not shown), the third member is dish-shaped and provided with a central aperture (59) having a taper similar to the taper on a nose (58) of shaft (50), or may be a ring (72) of spring steel having a split to allow its contraction when forced into the tube (71).
Patent GB-409937-A (GB)
Title: Improvements in or relating to aircraft catapulting apparatus
IPC: B64F1/06
Filed: 1933-07-18
Abstract: 409,937. Aircraft-launching apparatus; shock-absorbers. DEUTSCHE WERKE KIEL AKT.-GES., 114, Werftstrasse, Kiel, Germany. July 18, 1933, No. 20284. Convention date, July 18, 1932. [Class 4.] In aircraft catapulting apparatus the moving parts, after launching an aircraft, are brought to rest by means of an hydraulic device and two or more pneumatic and /or spring shockabsorbing devices, the pneumatic and/or spring devices coming into action consecutively before the hydraulic device. The aircraft rests upon a truck or skid connected, by means of ropes passing over pulleys, with a hollow piston-rod 3 adapted to be ejected from a cylinder 1 by compressed air acting on a working piston 2. A piston 5 having a sleeve 6 abutting the coned end 71 of a cylinder 7 formed in the rod 3 is slidable on the hollow rod 4 of the piston 2, the rod 4 abutting the head 10 of the cylinder 7. The chamber B formed between the pistons 2, 5 is filled with compressed air fed in through openings 16 in the piston 2. In operation the pistons move together towards the cylinder cover 13 until, when the aircraft has been catapulted, the chamber A in front of the piston 5 is closed by the outward movement of the coned end 71 of the cylinder 7 through the cover 13 of the cylinder 1. This brakes the movement of the piston 5 and subsequently the piston 2 moves forward relatively to the piston 5 until the pressure on the chamber B stops the movement. Meanwhile the cylinder 7 continues its forward motion so that the cylinder head 10 recedes from the rod 4, its movement being braked by a piston 11 secured to the rod 9 of the piston 2, liquid flowing past the piston 11 through grooves in the cylinder 7.
Patent GB-1267805-A (GB)
Title: Improvements in and relating to high temperature seals
Inventor: HRYNISZAK WALDEMAR
IPC: F28D19/04
Filed: 1968-04-29
Abstract: 1,267,805. End-face seals. CLARKE CHAPMAN-JOHN THOMPSON Ltd. 24 April, 1969 [29 April, 1968], No. 20296/68. Heading F2B. A seal for a rotary heat exchanger comprises a sliding face element 2 or 26 and a backing 1 or 1b of resilient ceramic fibres. The face element 2 or 2b may be made of hard metal or ceramics and formed separately from the backing or coated thereon by flame or plasma spraying (examples of materials for the face element include Cr 2 O 3 +TiO 2 ; Al 2 O 3 +TiO 2 ; TiO 2 ; Ni 2 O 3 ; Al 2 O 3 ; ZrO 2 ; Cr 2 O 3 ; Cr 3 C 2  and WC). The fibrous ceramic backing may be made from alumino-silicate, chrome stabilized aluminosilicate or boron nitride. In the manufacture of the backing, the fibres are soaked in a binder (e.g. silicon ester or colloidal silica) and then moulded, the material being built up, if desired, in layers of different densities 1<SP>1</SP>, 1<SP>11</SP> and 1<SP>111</SP>. The face element may be coated with an antifriction material and may be held in a groove in the backing or provided with side lugs which fit into recesses in the backing. In Figs. 5 and 6 (not shown), the backing is held in a base member by side lugs (3a) and the face element is held on the backing by side lugs (4b).
Patent GB-1468603-A (GB)
Title: Blend of polymers
IPC: C08L23/08
Filed: 1974-05-08
Abstract: 1468603 Blends of butadiene-acrylonitrile copolymers and ethylene-containing copolymers E I DU PONT DE NEMOURS & CO 8 May 1974 [8 May 1973] 20349/74 Heading C3P A curable composition comprises a homogeneous blend of (A) 1-30 parts by weight of a butadiene-acrylonitrile copolymer containing 20-50 weight per cent of acrylonitrile and (B) 100 parts by weight of a copolymer of ethylene with a C 1 -C 4  alkyl acrylate or methacrylate containing at least 3À6 moles of ethylene and 2À5-8 moles of the ester per kg. which may contain up to 10% by weight of a third monomer selected from acrylic or methacrylic acid, CO, a vinyl ester, maleic anhydride, acrylonitrile, a C 1 -C 12  alkyl mono (or di) ester of butanedioic acid or an alkyl acrylate or methacrylate where the alkyl group contains at least 5 carbon atoms. The composition may also contain a peroxide, a cocuring agent therefor, an antioxidant system of a phosphorus compound with either a hindered phenol or an amine and a filler. In the examples blends of a copolymer of butadiene and acrylonitrile or a terpolymer thereof with acrylic acid with an ethylene-methyl acrylate copolymer or an ethylene-ethyl or methylacrylate-ethyl hydrogen maleate terpolymer also containing carbon black, barium sulphate, dicumyl peroxide, trisnonylphenyl phosphite, N,N<SP>1</SP>-m-phenylenedimaleimide and in some cases one or more of silica, 1,3,5-trimethyl-2,4,6- tris(3,5-t-bytyl-4-hydroxybenzyl) benzene and 4,4<SP>1</SP> - butylidene - bis(6 - t - butyl - m - cresol) are vulcanized. In comparative experiments (A) is replaced by natural rubber, polychloroprene, SBR, cis-polybutadiene or 1,2-polybutadiene or not present.
Patent GB-1273351-A (GB)
Title: Electrical gravity operable switches
Inventor: APLIN NEVILLE FREDERICK
IPC: H01H29/22
Filed: 1968-04-30
Abstract: 1,273,351. Vehicle safety devices. JOSEPH LUCAS( INDUSTRIES) Ltd. 9 July, 1969 [30 April, 1968], No. 20355/68. Heading B7H. [Also in Divisions F1 and H1] An electrical switch has fixed contacts 17, 18  and a movable contact 19 which, when the switch has been tilted in any direction through a predetermined angle, will move under the influence of gravity and bridge fixed contacts 17, 18, means being provided to damp the movement of movable contact 19. As shown, fixed contact 18 is a ring on the inside of bowl 16, movable contact 19 is mercury and the means for damping the movement of contact 19 is heavy oil filling the inside of bowl 16 . Different parts of ring 18 are at different distances from contact 17 so that the switch will need to tilt more in some directions than others to bridge the contacts. The switch is mounted on a horizontal part 15 of a motor vehicle such as a tractor and when the contacts are bridged, solenoid 12 is energized which closes flap 13 over exhaust pole 14 of an internal combustion engine of the compression ignition type to stop the engine. If the engine is of the type having an ignition circuit, the switch may be a part of this circuit.
Patent GB-327919-A (GB)
Title: Improvements in or relating to screens for use in connection with the optical projection of pictures
IPC: G03B21/56
Filed: 1929-07-03
Abstract: 327,919. Cawdery, W. H. July 3, 1929. Projection screens. - A projection screen c pervious to sound has a screen a substantially impervious to light and sound arranged behind it, and one or a number of sound amplifiers b of one or more loud-speakers, debouching at the surface of the screen a. Both screens may be white and rendered fireproof, the screen c may be made of Madapollam, the screen a may be of asbestos, the interiors of the amplifiers may be white, and white screens pervious to sound may extend across the mouths of the amplifiers in continuity with the screen a. The single screen c may be replaced by separate screens for each amplifier. Shutters or the like may be provided to vary the use of the amplifiers when more than one is provided.
Patent GB-294176-A (GB)
Title: Improved manufacture of carbon electrodes and other refractory articles
IPC: H05B7/085
Filed: 1928-07-13
Abstract: 294,176. Carborundum Co., (Assignees of Doerschuk, V. C.). July 19, 1927, [Convention date]. Processes; shaking and jigging machines.- Mixtures of a granular refractory material such as coke or silicon carbide and a viscous bituminous binder are moulded into a coherent mass by subjecting to jarring in a mould. The invention is particularly applied to the manufacture of elec. trodes and furnace linings from a mixture of granular carbonaceous material and pitch or tar. For example, electrodes for electric furnaces are made from a mixture of 35 per cent coarse petroleum coke, 43 per cent fine petroleum coke, 10 per cent ground electrodes, 9 per cent pitch and 3 per cent tar, the mixture being subjected to jarring for five minutes with a weight of about 2,000 lbs. on the material. For larger electrodes, 40 per cent of baked electrode scrap is mixed with 30 per cent calcined anthracite coal-flour and 30 per cent pitch, the mixture being heated to 150‹ C and fed to a mould heated to 165‹ C and jarred for three minutes under a weight of 6,000 lbs. A machine for carrying out the invention comprises a mould 11 supported by a table 3 secured to a piston 6 working in a pneumatic cylinder 5 furnished with pressure and exhaust pipes 7, 8. The table 3 is supported by telescopic guides 4 on a base frame 2. A weight 13 resting upon the material is held against displacement by gravity arms 14 pivoted in brackets 15 on a frame 16 supported on posts 17 and retained by links 18. The parts 3, 11, 13 are furnished with jacketed walls adapted to be supplied with steam or cold water through pipes 20, 21, 22. Carbon linings for metallurgical furnaces are moulded within the furnace shell by the use of a suitable form and weight.
Patent GB-793512-A (GB)
Title: Checking method and system
Inventor: ROWELL WILLIAM GRANT
IPC: G01F23/00
Filed: 1954-07-14
Abstract: 793,512. Indicating and regulating liquid levels. SCULLY SIGNAL CO. July 14, 1954, No. 20533/54. Class 123(1) Also in Groups XXX, XXXVIII and XL(b)] The operability of a system which includes a device for detecting the occurence of a predetermined condition of the circuit is tested by repetitively simulating such condition to produce a checking signal, the loss of such signal for a period greater than a predetermined time interval indicating failure of the system, or the occurrence of the predetermined condition. As shown in Fig. 1 the system is applied to the detection of abnormal conditions, such as low water level, in a boiler in which the feed water supply is controlled by a hinged float 1 in a chamber 9, the float being periodically depressed to the low level position by a solenoid 37. Under normal conditions the float is raised by the water in chamber 9, and the periodic movements of the float operate a switch contact 35 controlling a pulsating relay 75, the armature 73 of which operates the solenoid control switch 61 and a further switch 51 connected to a condenser 49 and resistance 59. Under these conditions the switches 61, 51 operate in synchronism with the movements of the float 1, the condenser 49 being alternately charged from a source 21 and discharged to energize a slow-release relay 89, shunted by a condenser 91 which maintains energization of the relay 89 for a predetermined period. In the event of occurrence of low level conditions the float 1 fails to rise and the relay 75 ceases to operate, the relay 89 thus being de-energized after the lapse of the predetermined period to open a switch 95, which may be followed by the operation of an alarm 109, shutting off of the fuel burner 99, or the operation of a circuit 111 to increase the rate of feed water supply. Failure of the system likewise results in non-operation of the relay 75, to actuate an: alarm or protective device in the manner described in Specification 793,511 [Group XXXVIII]. The system may be arranged to detect high water level, or both high and low level conditions, further arrangements being described, Figs. 5 to 10, not shown, in which such conditions are detected by periodic raising and lowering of probe electrodes, capacitance rings or coils, or by the lateral insertion of a probe responsive to hydrostatic pressure. Such latter arrangement may also be employed with fluent solids.
Patent GB-1428038-A (GB)
Title: Absorbent polymeric materials
IPC: B32B27/00
Filed: 1973-04-30
Abstract: 1428038 Laminates; reticulated webs TEIJIN Ltd 30 April 1973 [1 May 1972 22 March 1973] 20540/73 Headings B5N and B5B An oil or organic solvent absorbent material is prepared by (a) extruding a molten thermoplastic polymer containing a foaming agent through a die having a slit aperture of 0À2-1À0 mm. width; (b) quenching the extrudate at the die exit to a temperature below the glass transition point of said polymer; (c) simultaneously drawing the extrudate at a draw ratio from the maximum possible to one-third of this maximum ratio; (d) laminating at least two sheets of the resulting reticulated structure having numerous non-continuous cracks along one direction so that the directions of the cracks of said at least two sheets are the same; and (e) drawing the laminate in a direction perpendicular to the direction of the cracks to separate the constituent fibres; and (f) crimping the laminate either alone or together with other sheet-like materials. Alternatively step (e) may precede step (d). The thermoplastic polymer may be polyethylene, polypropylene, polystyrene, chlorinated polyethylene, PTFE, poly - # - caproamide, polyhexamethyleneadipamide, polyethylene - terephthalate or -2,6-naphthalate, PVC, polycarbonate, polyurethane, polyimide or an acrylic resin or particularly a blend of polystyrene and polyethylene or polypropylene. When the material is to be used as an absorbent for organic solvents, the polymer may particularly comprise a blend of a solvent soluble polymer such as polystyrene, acrylonitrile - styrene copolymer or acrylic resin with a solvent insoluble polymer such as polyethylene, polypropylene, an ionomeric resin, nylon 6, nylon 66, nylon 12, polyethylene terephthalate or naphthalate, or polybutylene terephthalate. Crimping of the laminate may be effected by heat shrinking, stuffer crimping, gear crimping or solvent treatment and the surface layer of the crimped structure may be subsequently impregnated by an emulsion of a resin such as petroleum resin, polybutene, polyisobutene, alactic polypropylene or polystyrene. A reinforcing layer of paper, glass mat, woven or knitted fabric, foam sheet or resin or regenerated cellulose film may be crimped together with the laminate in step (f) or laminated with the crimped laminate obtained from step (f) or laminated with or between the sheet-like structures in step (d). The laminate may be needled or heat-sealed.