baber/WOPTO huggingface dataset:
Patent GB-1083847-A (GB)
Title: Improvements in and relating to films of thermoplastic material and the like
Inventor: STEPHENSON ARTHUR RIPON
IPC: B29D28/00
Filed: 1963-11-11
Abstract: 1,083,847. Perforated and reticulated films. T. J. SMITH & NEPHEW Ltd. Jan. 22, 1965 [Nov. 11, 1963], No. 44405/63. Heading B5B. In a method for forming an openwork net structure, a film of organic thermoplastic material is perforated by heat-assisted means, and then, or subsequently, submitted to biaxial orientation to permanently stretch the film. The film of, e.g. polyester, polypropylene or polyethylene may be perforated by passage between two driven rollers, one of which is provided with radially projecting heated pins, and the other of which has a cushioning surface, and then biaxially stretched on a tenter frame. The perforating pins may be heated by conduction from heating means within the roller, or by radiation from external heaters. The film may also be perforated by acting upon it with a flame while it lies in contact with the surface of an indented roller (Specification 1,012,963). The perforations are preferably arranged in a regular pattern.
Patent GB-1529467-A (GB)
Title: Electric primer
IPC: F42C19/06
Filed: 1975-10-28
Abstract: 1529467 Electrically ignitable primer material H USEL 28 Oct 1975 [29 Oct 1974] 44468/75 Heading C1D [Also in Division F3] An electrically ignitable primer comprises an electrically conductive layer containing a matrix of one or more at least partially crystalline explosive substances, crystals of which have enclosed therein doping atoms or particles of a metallic electron conductor and, distributed in the matrix, one or more finely divided at least partially crystalline graphite-free substances which has/have the property of behaving as an electron conductor, which matrix constitutes from 60 to 90% of the total volume of matrix and the graphite-free substance(s). The graphite-free substance and the doping conductor are selected from antimony, silver, copper, pyrites, ferrous sulphide, phosphide, carbides, silicides and lead dioxide. The explosive consists of a picrate or styphnate of potassium, barium or ammonia. The electrically conductive layer is covered with a layer of binder and metal particles and is supported on several layers of explosive having different burning rates.
Patent GB-1034447-A (GB)
Title: Improvements in trench cleaning machines
Inventor: WEBB DAVID JOHN INGRAM
IPC: A01D44/00
Filed: 1962-11-24
Abstract: 1,034,447. Boat for weed clearing. DEMERARA CO. Ltd. Oct. 28, 1963 [Nov. 24, 1962], No. 44535/62. Heading B7A. [Also in Division A1]  A trench-cleaner comprises a punt 10 provided at its front end with a fork 21 supported so that it can be raised and lowered and moved from side to side for lifting the weeds and depositing them on the bank of the trench. The fork 21 is hinged to a jib 19 pivoted to a pillar 15 rotatable in a bearing 16 carried by beams 18 extending along the punt-bottom. The fork can be tilted by an hydraulic ram 24 and the jib can be raised by another ram 23. The pillar 15 is also rotatable by hydraulic means (not shown), the hydraulic power being provided by a tractor 31 mounted in the rear part of the punt with its driving wheels removed and replaced by paddles 30. The paddles comprise six vanes 32 secured at their ends by ties 33 and protected on their outer surfaces by buffer-rings 34. The stern of the punt is narrower than the bow so that the paddles are accommodated within the beam of the punt. Splash-guards are arranged over the paddles to protect the operator from spray.
Patent GB-445609-A (GB)
Abstract: 445,609. Interrupters. WINGRAVE, F. H., Boundary House, Potters Bar, Middlesex. Aug. 13, 1934, No. 19957 /33. [Class 38 (v)] A rotary interrupter comprises a lever 6 pivoted at 7 and biassed gravitationally so as to move a contact bridge 2 into engagement with fixed contacts 1, 4. The lever 6 is held out of the circuit closing position by an extension of a lever 8 pivoted at 9 and biassed gravitationally to the position shown. Clockwise rotation of a rotor 15 causes a striker 11 to engage the lever 8 which tilts anticlockwise and allows the lever 6 to move to close the circuit. On further movement of the rotor 15, the striker 11 slips past the lever 8 which then moves clockwise due to gravity and moves lever 6 to open the circuit. A number of such contact arrangements are placed side by side and actuated by a series of strikers such as 11 which are detachably mounted in desired positions on slats 12 which hang from pivots above their centres of gravity and are supported on end plates of the rotor 15. Buffers 13 cause following slats to give gravitational support to the slat carrying the operative strikers.
Patent GB-1091093-A (GB)
Title: Improvements in or relating to alarm contact boxes
Inventor: STANWORTH GEORGE
IPC: A62C35/60
Filed: 1965-10-22
Abstract: 1,091,093. Switch cases. THOMAS ASHWORTH & CO. Ltd. Oct. 24, 1966 [Oct. 22, 1965], No. 44723/65. Heading H2B. A fire alarm comprises a box 10 having a groove (15) in the upper surface of the box, or of the front plate 11, for receiving the shaft 17 of a hammer 16, the hammer being attached to the box by a chain 20 of sufficient length for the hammer to be able to break the glass panel 14 in plate 11 and sound the alarm by operation of a switch (not shown) when panel 14 is broken.
Patent GB-954097-A (GB)
Title: Variable phase shift devices for microwave circuits
Inventor: BARNES HERBERT RAY
IPC: H01P1/18
Filed: 1961-12-14
Abstract: 954,097. Phase-shifting devices. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec. 14, 1962 [Dec. 14, 1961], No. 44858/61. Heading H1W. A variable plan shift device for a microwave circuit comprises a strip conductor 1, a ground plane conductor 3, and a dielectric member 5 with a slot 7 extending along the length of part of the strip 1 mounted so that it can be moved transversely to shroud the strip 1 and thereby vary the plan shift along the device. The strip 1 may over part of its length lie completely within the slot 7, and the ends of the member may be stepped or tapered to reduce reflections. The device may be enclosed in a case 9, and connected through suitable transformers into a coaxial line.
Patent GB-1496200-A (GB)
Title: Coating method employing pigmented undercoat and transparent top coat
IPC: B05D1/38
Filed: 1975-10-30
Abstract: 1496200 Coated substrates FORD MOTOR CO Ltd 30 Oct 1975 [20 Dec 1974] 44882/75 Heading B2E A substrate, e.g. steel treated by cleaning, phosphating and conventional primer is coated with a first coating of an aqueous dispersion comprising 6-60 parts particulate pigment, e.g. aluminium flake, carbon black or titanium dioxide and 40-90 parts thermosetting binder resin, at least partially curing the first coating, applying a second coating of a particulate film forming material and heating the substrate to convert the second coating to a continuous transparent coating. Partial curing may be by heating from 200-350‹F, more preferably 225-275‹F. The final heating may be from 300 to 350‹F or 325-350‹F for 15 to 30 minutes. The first coat may employ a mixture of a low molecular weight emulsion polymer and a low molecular weight solution polymer. The solution polymer may be a copolymer of acrylic or methacrylic acid. Suitable comonomers include styrene, alpha methyl styrene, t-butyl styrene, vinyl toluene, vinyl chloride, acrylonitrile, methacrylonitrile and vinyl acetate. Alkyl and hydroxyl alkyl acrylates and methacrylates may be included. The emulsion polymer is preferably a copolymer of acrylic or methacrylic acid. The polymers may include a cross linking agent, e.g. urea formaldehyde or melamine formaldehyde resin. The powder coating material may be a thermosetting or thermoplastic material. Suitable polymers include epoxy group containing polymers of acrylates and methacrylates. polyesters, polyepoxides, urethane modified poly, esters, polyepoxides and acrylics. Comonomers as described for the first coating may be employed. The coatings may be applied by spraying, preferably by electrostatic spraying. Two tone car bodies may be produced by this method.
Patent GB-1447280-A (GB)
Title: Australia secretary department of supply electrostatic printing method crystallization apparatus
IPC: G03G9/08
Filed: 1973-09-26
Abstract: 1447280 Electrographic printing AUSTRALIA DEPT OF SUPPLY SECRETARY OF 26 Sept 1973 [28 Sept 1972] 45175/73 Heading B6C In a method of printing from electrical images the image on a dielectric surface is first developed with a conductive developer and then fixed to form a printing master having areas of relatively high and relatively low dielectric constant defining the image. The master is inked in the presence of an electrical field having a polarity to urge the ink on to the surface of the master where it is retained in the areas of relatively low dielectric constant. The ink is then transferred from the master to a receiving sheet in the presence of a further electrical field. The inking and transferring steps are then repeated as required. The original image may be an electrostatic image produced on the surface of a photoconductive material by charging and light exposure, the development being effected by transfer of liquid conductive developer from the surface of a roller. Alternatively the master may be produced from a sheet 10 bearing an image 16 printed by letterpress, lithography or electrophotography by passing a roller 12 bearing conductive developer 14 over the sheet 10 whilst it is in contact with an electrode 11. An electric field is created between the roller and the electrode 11 causing the developer to be selectively deposited in the insulating areas 15. In printing from the master on to a sheet 23, Fig. 3, ink is transferred from a roller 21 on to the master supported on a roller 20 under an electrical bias and the inked image is transferred to the receiving sheet 23 supported on an electrode 24 under a further electrical bias. Examples of ink and developer formulations and suitable electrical biases are given.
Patent GB-1117541-A (GB)
Title: Internal membrane material discharging device for containers
IPC: B60P3/24
Filed: 1965-10-26
Abstract: 1,117,541. Tank wagons; road tank vehicles; ships carrying bulk cargo. H. N. K. PATON. 26 Oct., 1965, No. 45283/65. Headings B7A, B7B and B7L. [Also in Division B8] Unloading mechanism for a horizontally elongated container holding particulate material, which may be a static container or mounted on a road or rail vehicle or a ship has a cup shaped flexible membrane of less than half the length of the container which by differential pressure or its two sides can invert to sweep the material towards an outlet in the bottom of the container to one side of the membrane which it then overlies. Membrane sections 3g can be held against the container walls during filling by suction applied to openings 7 while the filler opening 4, is vented or pressurized while the pressures can be reversed periodically to cause the membrane to embrace and compact the material. During discharge suction can be applied to the discharge opening 10 while the openings 7 are vented or pressurized but to prevent the membrane from covering the opening 10 before the material is discharged the inversion of the membrane can be controlled as by suction or pressure appliedto opening 18 between ribs 16, 17 adjacent the opening 10 or by magnetic elements or by controlled stiffening of appropriate areas. The membranes on either side of the openings 4, 10 may be operated alternately and more than one operation may be necessary to complete discharge. To control insect infestation during storage inert gas may be introduced under pressure into the material. The membrane acts as an insulation for the material and prevents contamination by condensation on the inside of a metal container. Material may be moved towards the discharge opening 10 by means such as inflatable tubes 25, Fig. 12, which under pressure move from the side of the container to a chordal position thus moving the material. The discharge opening may be elongated lengthwise of the container or the material moving arrangements may dump the material in a lengthwise trough containing a screw or belt conveyer, or vibrating or fluidizing means may be provided adjacent the discharge opening. Alternatively discharge hoppers, Fig. 24 may be provided comprising a gas supply pipe which by a connection 114 supplies gas to a plenum chamber 113 for discharging material through an outlet pipe 116 of a conveying pipe 117 or by actuating a valve 118 allowing discharge through a continuation 120 of the pipe 115. The membrane in addition to being sealed to the sides of the container has to be sealed around the filling opening and various seals are described including means mechanically operated to lock the cover in open or closed position to prevent material getting between the membrane and container.
Patent GB-1279507-A (GB)
Title: Pcm switching system
IPC: H04Q11/04
Filed: 1970-09-24
Abstract: 1279507 Automatic exchange systems INTERNATIONAL STANDARD ELECTRIC CORP 24 Sept 1970 [30 Sept 1969] 45509/70 Heading H4K In an electronic P.C.M.: T.D.M. tandem highway switching system, interhighways can be split to provide go and return signal paths between a channel on the split highway and a central control. The figure is divided by a horizontal line and shows below that line equipment common to all highways only one of which is shown above that line. In the normal switching mode speech signals incoming over the highway are converted from serial to parallel form at 3 and entered in a location in a random access speech signal store SS and are gated at appropriate moments via an 8 conductor interhighway 5a and 5b to the appropriate outgoing highway via a parallel to serial converter 4, the storage addresses being determined by address decoders 7 and 8. The decoder 8 receives its address signals from a switching memory 1, the locations of which are read out successively under the control of a clock signal generator 10 and decoder 9. The address signals are in the form of a 9 bit code read from a 10 bit location, the additional bit normally being zero. When a mode change is to be effected a "1" bit will be found in this location indicating that the currently processed channel is to be coupled to the central processor for signalling purposes. This "1" bit opens gates 15 in the interhighway splitting it into portions 5a and 5b, connects the clock signal generator 10 to decoder 8 via a gate 14 so that the contents of the speech store SS are read out cyclically, couples the output of this store and the output of the store 1 (the 9 bit code of which may have any significance) to the common control and connects the common control via a gate 17 to the other portion 5b of the interhighway. The common control can now process the received data and return the results or acknowledgement signals over interhighway portion 5b. Connections can also be made to multi-frequency receivers, service observation positions, exchange test desks, tones, announcements &c.
Patent GB-1285549-A (GB)
Title: Processes and dies for making cutter foils for dry shaving apparatus
Inventor: GRUNBERGER SIGROT
IPC: B26B19/14
Filed: 1970-09-24
Abstract: 1285549 Making cutter foils; stamping PHILIPS GLOEILAMPENFABRIEKEN NV 24 Sept 1970 [25 Sept 1969] 45622/70 Headings B3A and B3Q [Also in Division B4] A cutter foil for a dry shaver is made by pressing a metal foil 2 between a rubber cushion 3 and a die 1 having raised parts 5, each comprising superimposed portions 6, 7 separated by a step 8. When the rubber cushion 3 is moved downwards, holes are punched out of the foil 2 by the portions 6 of the die 1, after which the apertured foil 10 is pushed from the steps 8 down on to the base surface 9 of the die 1 causing the edges of the holes to be turned over. The foil is finally ground. In alternative embodiments (Figs. 5 and 6, not shown) one or both portions 6, 7 of the die 1 are frusto-conical and the step 8 is frusto-conical or formed by two torroidal surface portions. The holes may alternatively be diamond or pentagon shaped.
Patent GB-1021519-A (GB)
Title: Organophosphorus-substituted disulphides
IPC: C07F9/6541
Filed: 1962-12-03
Abstract: The invention comprises compounds of formula <FORM:1021519/C2/1> where R is an aliphatic radical or a -C(S)O- alkyl group containing 1-4 C, C3-6 cycloalkyl, an aromatic hydrocarbon radical of the benzene or naphthalene series, chlorophenyl, anisyl, a heterocyclic radical having 1 or 2 rings each containing 5 or 6 members, or a radical of formula <FORM:1021519/C2/2> R1 is C1-4 alkyl, alkoxy, chloroalkyl or chloroalkoxy, or an aromatic hydrocarbon radical of the benzene or naphthalene series, and R2 is C1-4 alkyl or chloroalkyl.  They are prepared by reacting Y-S-S-CCl3, where Y is -CCl3 or R with R1P(OR2)2.  2 - Benzthiazolyl trichloromethyl disulphide is prepared from CCl3SCl and 2-benzthiazolethiol.ALSO:Pesticidal compositions comprise organo-phosphorus-substituted disulphides of formula <FORM:1021519/A5-A6/1> where R is an aliphatic radical or a -C(S)O-alkyl group containing 1-4 C, C3-6 cycloalkyl, an aromatic hydrocarbon radical of the benzene or naphthalene series, chlorophenyl, or pnisyl, a heterocyclic radical having 1 or 2 rings each containing 5 or 6 members, or a radical of formula <FORM:1021519/A5-A6/2> R1 is C1-4 alkyl, alkoxy, chloroalkyl or chloroalkoxy, or an aromatic hydrocarbon radical of the benzene or naphthalene series, and R2 is C1-4 alkyl or chloroalkyl.  Dusts, solutions and aqueous dispersions are mentioned.
Patent GB-1014604-A (GB)
Title: Hydrocarbon wax coatings and their production
IPC: D21H19/22
Filed: 1961-12-21
Abstract: Hydrocarbon wax coatings are coated on at least one surface of a substrate by contacting the hydrocarbon polymer of at least one a -olefine containing at least 3 carbon atoms and having a density of between 0,83 and 0,94, an inherent viscosity of between 0,05 and 0,55 in tetralin at 145  DEG C., a melt viscosity of between 500 and 50,000 cp. at 190  DEG C. and a melting point between 45  DEG C. and 350  DEG C., in the molten state, with the substrate and chilling the molten polymer at a temperature below its melting point, e.g. by chill roll or water, the contacting and chilling being effected substantially simultaneously.  The coating is nonpermeable for at least 30 seconds by acetone placed on a crease formed in the coating by folding the coated substrate and pressing it with a 5 pound weight.  Substrates referred to are paper, foil e.g. metal foil, glass, fabric and wood.  The polymer may be a homopolymer of an a -olefin containing 3-10 carbon atoms of formula CH2=CH-R wherein R is an aliphatic, cycloaliphatic, alkyl, alkaryl or aralkyl radical e.g. propene, butene, isobutene, 3-methyl-1-butene, pentene, decene, styrene, butodiene and hexadiene.  The polymer may be a copolymer containing at least 50% of an a -olefin containing at least 3 carbon atoms e.g. 3-10 carbon atoms, with 10-20% ethylene, or with hexene or 3-methylbutene-1.
Patent GB-1504545-A (GB)
Title: Hydraulic reciprocating motor
IPC: F03C1/007
Filed: 1975-11-05
Abstract: 1504545 Hydraulic reciprocating motors INGERSOLL - RAND CO 5 Nov 1975 [18 Dec 1974] 45907/75 Heading F1A [Also in Division B4] In a hydraulic reciprocating motor for driving a rock drill breaker 12 and comprising a piston 46 having alternately pressurized surfaces 50, 52 and a shoulder 54 movable into and out of a cushion chamber 40, the resulting changes in the pressure of liquid in the cushion chamber 40 causes the reversal of a valve 56 controlling the pressurization of the surfaces 50, 52. As shown the valve 56 is a sleeve which also acts as the working cylinder for the piston 46, but in a further embodiment, Figs. 6 and 7 (not shown), the valve is a spool (100). In the position of the motor shown liquid supplied through passages 22, 26, 28 to a chamber 30 enters the sleeve 56 through ports 60 and acts on the lower surface 50. Piston 46 thus moves upwardly resulting in a pressure rise in the cushion chamber 40 due to the entry of the shoulder 54 thereinto. The cushion chamber pressure is applied to the upper end of the valve sleeve 56 through a ring of pins 62 slidable in bores in a retainer 66, the bores being in communication with the cushion chamber 40 through ports 64. When the force applied to the valve via the pins 62 exceeds the force due to the supply pressure acting on a shoulder 70 and the exhaust pressure acting on a shoulder 74, the valve is displaced downwardly. Thus the piston reverses since the ports 60 align with an annular chamber 86 connected by passages 32, 36, 38 to exhaust and the upper piston surface 52 is pressurized through ports 58 now in communication with chamber 30. The downward stroke continues until the valve returns due to the forces acting on the shoulders 70, 74 exceeding the force due to cushion chamber pressure acting on the pins 62.
Patent GB-1324470-A (GB)
Title: Driving arrangement for rollers on printing machines
IPC: B41F31/00
Filed: 1971-10-05
Abstract: 1324470 Printing apparatus ADAMOVSKE STROJIRNY NARODNI PODNIK 5 Oct 1971 [12 Nov 1970] 46292/71 Heading B6C An inking and damping apparatus for an offset printing machine includes a primary drive means, a damping roller rotated continuously by the primary drive means and a secondary drive means, driven from the primary drive means, by which an ink duct roller may be intermittently rotated. The primary drive means is an endless chain. The ink duct roller may be driven by a ratchet gear, operated by a pawl brought into operation by a cam driven by the chain, or may be actuated by spaced pins which extend laterally from the chain to contact a gear-wheel. The cam-controlled pawl may be arranged to follow two fixed similar cams, having inset portions and arranged side by side, as it is swept around them by a chain-driven gear. If the inset profiles of the cams coincide the pawl is able to contact the ratchet gear during a maximum part of its circuit, and so impose a maximum rotation on the ratchet gear and duct roller. To reduce the rotation of the duct roller one cam is rotated relative to the other, so that their inset profiles coincide over a reduced are only. If the chain-carried pin drive is used, the driven gear and one which carries the chain may be locked by rotation of an eccentrically-mounted pin on the gear which is driven by the chain-carried pins, so that it contacts an abutment on the chain-driven gear and causes the two gears to rotate in unison, without regard to the chaincarried pins. The duct roller then rotates continuously. Ink from the duct roller is picked up by a cam-oscillated messenger roller, actuated continuously from the chain-driven gear.
Patent GB-1043590-A (GB)
Title: Improvements relating to mobile trenching machines
IPC: E02F9/02
Filed: 1963-11-22
Abstract: 1,043,590. Endless-chain trench excavators. CLEVELAND TRENCHER CO. Nov. 22, 1963 [Nov. 23, 1962], No. 46321/63. Heading E1F. An endless-chain trench excavator comprises endless traction treads 12 mounting the chassis for movement during trenching and wheels 20 which are lowered below the traction treads for transporting the machine with the digging unit 18 in inoperative position, detachable means 110 (Fig. 2, not shown) being provided for coupling the machine to a towing vehicle. The digging unit is driven by a reversible rotary hydraulic motor 60. Each bucket 42 of the unit 18 comprises back plates 86, 86a and a front plate 94 connected to the plate 86 by a central web 92 and is cleaned by a fixed plate 98 which urges material collected towards a screw conveyer 76 for transferring spoil from the digging unit to a side of the excavation.