baber/WOPTO huggingface dataset:
Patent GB-991484-A (GB)
Title: Improvements in bonding elastomeric materials
Inventor: BIGGS JOHN
IPC: B60C1/00
Filed: 1962-09-14
Abstract: 991,484. Making tyres. ESSO RESEARCH & ENGINEERING CO. Aug. 30, 1963 [Sept. 14, 1962; Sept. 28, 1962], Nos. 35200/62 and 36920/62. Heading B7C. A tyre whose tread 1 and carcase (Figs. 1, 2, not shown) are formed of different rubbers incorporates a reinforcing element 4a, which prior to its application to the tyre, has at least one layer of tie gum rubber on at least one side, the tie gum rubber being formulated to bond the tread and carcase rubbers together. In Figs. 3, 4, the element 4a is the outermost ply of the carcase and is made by coating cords or woven fabrics of cotton, rayon, nylon, glass fibre or wire and then calendering rubber sheet on to each side. Fig. 3 shows an element having a sheet 6 of carcase rubber on one side and tie gum rubber 7 on the other. An additional layer of tie gum rubber 8 is applied over the element 4a to bond the tread 1 to rubber 7. In Fig. 4 the element 4a incorporates a layer of tie gum rubber 7, 9 on each side, bonding with the adjacent carcase ply and tread 1 respectively. Rubbers 7, 9 may be identical. The carcase may comprise styrene-butadiene or natural rubber or a mixture of the two, and the tread may be butyl or halogenated, preferably chlorinated, butyl rubber or a mixture of the two; i.e. the carcase is high unsaturation and the tread low unsaturation, high hysteresis rubber. A rubbery copolymer of ethylene and propylene may form the tread or carcase, either alone or blended with the rubbers mentioned above. The tyre may comprise a unitary tread and sidewall or a cap and base construction. Formulations are given for tie gum rubbers which either alone or in combination will bond the high and low unsaturation carcase and tread together. A formulation is also given for a chafer strip rubber having tie gum properties. In addition to the reinforcing element 4a and layer 8, the tread and the lower carcase plies may also incorporate layers of tie gum rubber. Specifications 829,509, 869,762 and 910,454 are referred to.
Patent GB-300419-A (GB)
Title: Improvements in electric insulators
IPC: H01B17/38
Filed: 1927-12-29
Abstract: 300,419. Haddan, R., (Steatit Magnesia Akt.-Ges.). Dec. 29, 1927. Insulators.-A metal-capped insulator for the suspension or tensioning of electric conductors having an intermediate layer joining the cap to the insulator has an insulator head a of smooth cyclindrical form with a thick bead b at the top and a cap c also of smooth cylindrical form with an inwardly-directed bead d at the bottom. Lead or the like is poured between the cap and the insulator, forming a thick even ring.
Patent GB-1377054-A (GB)
Title: Vehicle fuel level indicating systems
IPC: G01S15/14
Filed: 1973-07-24
Abstract: 1377054 Sonic fuel level indicators FORD MOTOR CO Ltd 24 July 1973 35230/73 Heading H4D A motor vehicle has a system for indicating the level of fuel in a tank comprising a transducer mounted on the bottom or top of the tank and responsive to electrical signals to emit ultrasonic pulses into the tank, means for detecting the ultrasonic echo pulses reflected back from the fuel surface, a timing circuit for measuring the time lapse between the emission of an ultrasonic pulse and the detection of the corresponding echo pulse and display means responsive to the timing circuit to display a varible which increases or decreases in accordance with the measured time lapse as an indication of fuel level in the tank. Oscillator 12 operates ring counter 13 which provides outputs at 0, 10 and 95 counts. At 0 count, trigger 14 is operated and causes an ultrasonic pulse to be emitted from transducer 11. Receiver 16 is disabled until a count of 10 so that the trigger pulse is rejected and disabled at a count of 95 to reject echo pulses returning from the other side of the tank. An echo from fuel surface 19 is accepted by the receiver and passed to counter 17 which was started by the 0 count from counter 13. The counter is an up counter if the transducer 11 is mounted at the bottom of the tank and a down counter if the transducer is at the top. The count is passed to display 18 giving the fuel level.
Patent GB-601811-A (GB)
Title: Improvements in or relating to the control of alternating current electric supply circuits
IPC: H05G1/56
Filed: 1945-12-31
Abstract: 601,811. Supply systems for consumption apparatus. GENERAL ELECTRIC CO., Ltd. and STEADMAN, E. J. Dec. 31, 1945, No. 35307. [Class 38 (iv)] An arrangement for ensuring that a load circuit, more particularly an X-ray contactor coil 2, is operatively connected to an A.C. supply 11 at the zero point of the A.C. cycle, comprises rectifiers 9, 10 connected in series opposition with the coil such that at least the first rectifier to become conducting, is short circuited upon current flowing through it. Closure of an exposure switch 11 energizes, when the A.C. supply polarity is correct, the relay 19 through rectifier 9. Relay contact 17 thereupon closes to complete the circuit for the coil 22 of relay 20 through rectifier 10 which becomes conducting upon reversal of supply polarity also to energize simultaneously, the contactor coil 2 and a clutch coil 23 coupling a timing device (not shown) to a synchronous motor 15. Relay contact 18 closes to short circuit the rectifier 10 and the contactor coil remains energized until its circuit is opened by contacts 12 of the timing device. Resistance 24 may be adjusted to cause the contactor to open at the zero point in the A.C. cycle. In modifications, Figs. 2 and 3, not shown, an additional rectifier and associated short circuiting contacts may be provided in order to avoid the use of high speed short circuiting relays in the arrangement shown. The short-circuiting contacts of the third rectifier may be operated by the contactor coil 2. Specification 601,808, [Group XXXVII], is referred to.
Patent GB-605748-A (GB)
Title: Improvements in helicopter rotor blade spar tubes
IPC: B64C27/473
Filed: 1945-12-31
Abstract: 605,748. Flanging. GILLE, N. J. Dec. 31, 1945, No. 35327. [Class 83 (iv)] [Also in Group XXXIII] The end of the spar tube 2 for a helicopter rotor blade is formed with an integral flange 3 which engages in a recess 4 in the fork 1 by means of which the blade is attached to the rotor head, the flange being machined from an enlargement 6, Fig. 2, formed at the end of the spar tube by cold drawing.
Patent GB-213332-A (GB)
Title: An improved manufacture of rubber-coated wire
IPC: B29C70/68
Filed: 1922-12-29
Abstract: 213,332. Gray, C. H. Dec. 29, 1922. Rolling-machines.-Plastic rubber is fed to grooved rollers A, A<1> by conveyer-bands D and is forced into the grooves by ribbed rollers B, B<1>. Wires F pass between the rubber-covered rollers A, A<1> and take up the rubber in the grooves. Further layers of rubber may be applied by machines G, G<1>, and while still in an extended condition the covered wires may be passed through a taping machine. The rubber may be applied to the grooves of the rollers A, A<1>, by means of hoppers, Fig. 6, having adjustable bottoms J<1> by which the thickness of the coating may be predetermined. The apparatus may also be used for covering hose-pipe or the like. Specification 123,414 is referred to.
Patent GB-762157-A (GB)
Title: Production of terpolymers
IPC: C08F220/44
Filed: 1954-12-07
Abstract: Clear terpolymers of (a) acrylonitrile and (b) two monomers selected from styrene, vinyl toluene, vinyl xylene, a -acetoxystyrene, and a -methyl styrene, are prepared by a free-radical-initiated batch polymerization, to at least 20 per cent conversion, of a monomer mixture selected from the area that gives clear terpolymers lying on or about (i.e. within 5 per cent of) the line joining the polymerization azeotrope compositions of acrylonitrile and the first selected monomer (b) and the second selected monomer (b) as plotted upon an equilateral, triangular co-ordinate graph.  The polymerization azeotrope compositions are those which give interpolymers containing the same relative proportions as the initial monomer mixtures.  In examples acrylonitrile is interpolymerized by heating in three stages with a -methyl styrene and styrene, and styrene and vinyl toluene. Graphs are given.  The polymerization may be carried out in mass, in suspension in water using suspending agents such as tricalcium phosphate and carbonymethylcellulose (which may yield pearls), or in emulsion using a redox-catalyst and an emulsifying agent such as a salt of a sulphonated long-chain alkyl aromatic compound or a condensation product of ethylene oxide and a long-chain aliphatic alcohol or mercaptan.  The term batch polymerization includes the addition of the monomers in fixed proportions to a continuous system, e.g. a series of vessels. Catalysts mentioned are hydrogen, benzoyl, di-t.-butyl, and diacetyl peroxides; t.-butyl and cumene hydroperoxides; diethyl peroxycarbonate, potassium persulphate and perborate; a ,a 1-azodiisobutyronitrile, p-bromobenzenediazonium fluorborate, N-nitroso-p-bromocetanilide, azomethane, phenyldiazonium halides, diazoaminobenzene, p-bromobenzenediazonium hydroxide and p-tolyldiazoaminobenzene.  Heat alone or ultra-violet light, if desired in the presence of a photo-sensitizer such as an organic disulphide, may also be used.
Patent GB-1500229-A (GB)
Title: Method for the preparation of 2-alkyl indanes
IPC: C07C45/75
Filed: 1976-08-26
Abstract: 1500229 Alkyl indans HEXACHIMIE SA 26 Aug 1976 [26 Sept 1975] 35449/76 Heading C5E [Also in Division C2] 2-Alkyl indans of Formula (IV) in which R is C 1 -C 5  alkyl or C 3 -C 7  cycloalkyl are prepared by (a) condensing an aromatic ketone of Formula (I) with formaldehyde (or a polycondensed form of formaldehyde liberating formaldehyde under the conditions) in a basic medium and in a polar organic solvent to obtain a ketol of Formula (II); (b) cyclizing the ketol in a strong acid medium to obtain an indanone of Formula (III) and (c) reducing the indanone to give the desired 2- alkyl indan. The reduction of stage (c) may be Clemmenson, Wolff-Kishner or catalytic hydrogenation. Examples describe the preparation of 2- ethyl- and 2-isopropyl-indans.
Patent GB-1243752-A (GB)
Title: Improvements in or relating to loose leaf binders
Inventor: LAWES MICHAEL JOHN ANTHONY
IPC: B42C7/00
Filed: 1970-01-05
Abstract: 1,243,752. Loose-leaf binders. M. J. A. LAWES. 10 Dec., 1970 [5 Jan., 1970; 22 July, 1970], Nos. 60352/70 and 35453/70. Divided out of 1,243,751. Headings B6A and B6E. A loose-leaf binder comprises two covers hingeable with respect to an outer curved spine, and paper retaining means mounted on an inner spine which is hingeably attached to the covers along welds extending substantially along the hinge lines between the covers and outer spine. The paper-retaining means may be in the form of a ring or post binder mechanism or may consist of strips 34, Fig. 4, slotted to engage the inner spine and to receive the fold of a magazine or the like 38. The binders are formed by apparatus shown in Fig. 1. An intermittently-operated conveyer 10 serves to feed forward material from a roll 12 of flexible P.V. sheeting beneath three hoppers 15, 16, 17 from which are fed, one at a time, cover-boards 18, 19 of cardboard or rigid synthetic resin and a cardboard strip 20. Strip from a roll 14 of semirigid material i.e. P.V. sheeting having a low plasticizer content, is also fed underneath the adjacent edges of the boards 18, 19. The assemblage passes to another roll 13 of flexible P.V. sheeting which overlies the strip 14, boards 18, 19 and strip 20, and then is operated upon by a high-frequency welding press 24 which welds the parts 12, 13, 14 along the line 26, Fig. 2, around the edges of the boards. At the same time, a weld is produced around the periphery of the strip 20 along the line 27 and providing two flexible margin parts 30, 31. Waste material as at 28, 29 is now removed leaving two components, namely one constituting the two covers joined by an outer spine, and the other being the inner spine constituted by the enclosed strip 20 with the margins 30, 31. The binder mechanism is now attached to the inner spine or the strips 34 are threaded thereon. Subsequently, the covers and outer spine are held with the latter curved as shown, Fig. 4, and the inner spine which is narrower than the outer spine is welded to the covers along the hinge lines, by means of the margins 30, 31, so that the outer spine retains to curved form. In modifications, the roll 13 of flexible sheeting may be replaced by a roll of semi-rigid sheeting in which case the roll 14 of semi-rigid strip and also the boards 18, 19 may be dispensed with. A recess (37, Fig. 5, not shown) to receive a label may be formed in the outer spine by welding together the materials constituting the outer spine.
Patent GB-510497-A (GB)
Title: Improvements in or relating to joints for air-space-insulated high-frequency electrical lines or cables
IPC: H02G15/08
Filed: 1938-12-06
Abstract: 510,497. Cable joints. DEUTSCHE FERNKABEL GES. Dec. 6, 1938, No. 35563. Convention date, Dec. 6, 1937. [Class 38 (i)] A joint for air-insulated high-frequency concentric cables 1, 3 comprises watertight seals for the cable ends consisting of discs 5, of ceramic material &c., mounted in metal sleeves 7 that are soldered within the outer conductors 3, the discs carrying inner sleeves 6 into which the inner conductors 1 are soldered. The sleeves are sealed to the disc 5 by cement 10 and packing washers 12, 13. The joint is completed by sleeves 8, 14, the latter of which may be slit, and enclosed in a compound-filled casing 16. The invention may be applied to multi-core cables.
Patent GB-918981-A (GB)
Title: Improvements in mechanisms for feeding record and duplicating materials in manifolding machines
Inventor: DYKE LESLIE ALEXANDER
IPC: B41J11/27
Filed: 1958-11-05
Abstract: 918,981. Typewriters &c. ALACRA Ltd. Dec. 15, 1959 [Nov. 5, 1958], No. 35587/58. Drawings to Specification. Class 100 (4). In a typewriter or like machine in which interleaved record webs are fed by pin means round a platen, and where duplicating material is released at a slow rate to be drawn by suction round the platen the feed pins are projected at two spaced points to engage the webs. The pins may be projected to engage the webs where they meet the platen or pin wheel and either where they leave it or at the printing line. In one example a double set of pins are provided and one set is projected at one side and one set at the other side of the wheel. In other arrangements described a double lobed cam may be used to project the pins at two points or two wheels may be placed side by side to engage separate rows of perforations the pins of each wheel being projected at different places. In all the examples the spacing of the pins and/or the positions of their projecting is arranged to form a loose portion between the feed points. Specifications 408,125 and 848,797 are referred to.
Patent GB-1125237-A (GB)
Title: Record reader
IPC: G06K7/016
Filed: 1966-08-09
Abstract: 1,125,237. Sensing records. RADIO CORPORATION OF AMERICA. 9 Aug., 1966 [30 Aug., 1965], No. 35624/66. Heading G4M. A bi-stable circuit 36 is triggered to the set state on detection of the leading edge of a hole or mark on a document 11 by the associated sensing circuit 12, and if circuit 12 is still producing an output when a timing pulse TP 2  occurs, bistable circuit 40 is set via AND gate 38, circuit 40 providing one of the outputs of the reader and subsequently causing circuit 36 to be reset via gates 42, 34. If 36 is not reset at the correct time, an error signal is produced via gates 44, 46. Timing circuit 20, which may be started by detection of the leading edge of document 11 by circuits 12, produces clock pulses TP 1 -TP 3  which occur just before, at the centre of, and just after each column being sensed. If the web between two holes on document 11 has been torn away, 36 will not be triggered to the set state by the leading edge of the second hole, but will be set at the following TP 3  time via gate 42, and gate 46 will produce the error signal in response to the TP 3  or end of card pulse. Similarly an error signal will be produced if one or more card columns are misaligned owing to skew or malformation of the document.
Patent GB-883515-A (GB)
Title: Improvements in laminates
IPC: B32B27/00
Filed: 1957-11-15
Abstract: 883,515. Laminates. MICROCELL Ltd., HAYDEN, K. D., and MAY, J. E. Nov. 17, 1958 [Nov. 15, 1957], No. 35632/57. Class 140. Decorative laminates of pigmented, glass or other mineral fibre-reinforced, phenolic, epoxy, or polyester resins are made with barrier layers of paper, linen, or glass mat, having pores which pass the resin but not the pigments, between the pigmented layers. Outer layers may be partly removed in patterns to form signs &c.
Patent GB-883450-A (GB)
Title: Improvements in or relating to single or strip electrical connectors
IPC: H01R9/24
Filed: 1959-10-21
Abstract: 883,450. Terminal blocks. ELMACO ELECTRICAL MANUF. CO. PROPRIETARY Ltd. Oct. 21, 1959 [Oct. 21, 1958; April 9, 1959], No. 35693/59. Class 38 (1). An electrical connector comprises an insulating shell 7 housing a conducting bush 8 in which wires may be secured by clamping screws 17 inserted through radially directed apertures 15 in the shell, each aperture being surrounded by a cylindrical collar 16 formed with an inwardly directed resilient lip 18 which may be deformed to permit the screw 17 to be inserted within the collar 16 and which then prevents the screw from falling out. The shell opening which receives the bush 8 is large enough at one end 10 to permit insertion of the bush and small enough at the other end 9 to prevent the bush from passing through the opening, the bush being retained in the shell by providing the latter with a resilient projection co-operable with a recess 13 in the bush; alternatively the opening 10 may have an inwardly directed resilient lip to hold the bush in position. Separate connectors, each comprising a shell and two collars, may be joined together to form a strip (Fig. 2, not shown).
Patent GB-749895-A (GB)
Title: Sheets for recording written information
Inventor: AMSEL DONALD
IPC: B41B13/02
Filed: 1953-12-23
Abstract: 749,895. Sheets for recording written information. COPYCAT ASSOCIATED (MARKETING), Ltd. Dec. 23, 1954 [Dec. 23, 1963; Sept. 24, 1954], Nos. 35733/53 and 27649/54. Class 98 (2). A transparent or translucent resiliently flexible carrier sheet has a pair of inwardly facing guide channels along two opposite edges of one face, and a plurality of item strips on which the information may be written, typed or printed are disposable side by side (but not necessarily contiguously) across the carrier sheet to be engaged by locating means within the channels, whereby the item sheets may be removed re-arranged or otherwise altered to produce a record which may then be copied photographically, as by contact printing, and if desired on a curved or rotary surface. As shown, the carrier sheet 5 has doubled over edges 6 forming the guide channels and such edges have embossings 7 to retain strips or item sheets 8 in position within the channels. Marginal portion 9 of the carrier sheet 5 is folded to form a further channel to accommodate the edge of a photo-sensitive sheet.
Patent GB-176548-A (GB)
Title: Improvements relating to self-closing oil-cups
IPC: F16N21/06
Filed: 1920-12-21
Abstract: 176,548. Oubridge, W. A. Dec. 21, 1920. Oil-hole closures. - A conical washer C retained in the mouth of an oilcup by an inturned lip forms a seat for the spring 4 of a self-closing lid B. The spring comprises an axial part 1 hooked on a lug 5 on the underside of the lid, the other end of the axial part being continued spirally upwards in conical form to seat against the washer. The lid has a conical rim B<1>, and the cup is filled by inserting the nczzle of an oil-can between the body of the cup and the rim B<1>, then raising the lid.
Patent GB-1016817-A (GB)
Title: Motor vehicle suspensions and springs for use in them
Inventor: RAY FREDERICK SHAD
IPC: B60G11/113
Filed: 1964-09-03
Abstract: 1,016,817. Leef springs. FORD MOTOR CO. Ltd. Sept. 3, 1964, No. 36063/64. Heading F2S. A leaf spring 2 for a motor vehicle suspension is assymetrically wedge-shaped in longitudinal section such that when it is connected to the axle beam 1 of the motor vehicle it takes up a desired angle, i.e. " a castor angle," to the body (not shown). The tie-bolt 4 which holds the laminations of the spring together has a substantially hemispherical head 4a and is located in a complementary seating 5 in the axle beam. The leaf spring may also be provided with an eye 6 to which one end of a shock absorber can be attached.
Patent GB-1063391-A (GB)
Title: Improvements in or relating to composite photography
IPC: G03B15/10
Filed: 1963-09-13
Abstract: 1,063,391. Composite photography; slide projectors. L. MENSE [trading as ELMED DR. ING. MENSE KOMM, GES.] Sept.13, 1963 [Sept. 15, 1962], No.36168/63. Headings G2A and G2J. An apparatus for composite photography comprises a slide projector 19 for projecting a background image on to an autocollimating screen 20, as in Fig.4 (not shown), and a camera 12 for viewing a composite image formed by the background image and a subject 22 positioned in front of the screen, as in Fig. 3 (not shown), a semi-transparent mirror 13 being arranged so that light from the projector is directed on to screen 20 along the optical axis of camera 12. The projector housing 19 contains an air cooled pilot lamp 27 to project the background during setting-up and an electronic flash-lamp 26 which is used during photographic exposure, the lamps transmitting light along the optical axis of the projector by means of mirror 28 which may be semi-transparent. Light transmitted through mirror 13 is absorbed by casing 10 having an internal tetrahedral or conical cavity with black, polished walls. The apparatus is mounted on a vertically adjustable member 2 sliding on column 1 and counter-balanced at 5. Projector objective 15 is adjustable and slide holder 17 moves on rails and is rotatable. Platform 8 carrying the optical apparatus is rotatable, as is the mirror 13.
Patent GB-897226-A (GB)
Title: Production of unsaturated aliphatic nitriles
Inventor: WOOD BARRIE
IPC: B01J23/18
Filed: 1959-10-28
Abstract: Catalysts for preparing acrylonitrile or methacrylonitrile from the corresponding unsaturated aldehyde comprise a mixture of the oxides of tin and antimony and/or a compound of tin, antimony and oxygen. They may be prepared from the oxides themselves or from compounds, e.g. the hydroxides, which on heating in air are converted to the oxides.  Hydrated forms of the oxides may also be used such as those formed by the action of aqueous nitric acid on the metals.  The catalysts may also be obtained by hydrolyzing possibly in the presence of a volatile base such as ammonia, cationic salts of the metals and heating the resulting precipitate.  Before use the catalysts may be heated, e.g. at 550 DEG  C. to 1,100 DEG  C.  The atomic ratio of tin to antimony can vary from 0,1:1 to 10:1, and the catalysts may be supported on silica. Specification 709,337 is referred to.ALSO:Acrylonitrile and methacrylonitrile are obtained by passing at an elevated temperature acrolein or methacrolein with oxygen and ammonia over a catalyst of a mixture of the oxides of tin and antimony and/or a compound of tin, antimony and oxygen. Preferred concentrations in the feed are: aldehyde 4%-6%; oxygen 2%-15% and ammonia 2%-10% all by volume.  Preferred reaction temperature is 300 DEG C.-550 DEG C., and steam with or without nitrogen may be present as an inert diluent.  The catalyst may be pre-heated before use, and may be used as a fluidized bed. Specification 709,337 is referred to.