baber/WOPTO huggingface dataset:
Patent GB-521014-A (GB)
Title: Improvements relating to the insertion of detonators in blasting charges
IPC: F42B3/26
Filed: 1938-11-09
Abstract: 521,014. Blasting detonators and fuzes. ROLFES, Ltd., ROLFES, F. H., and ROLFES, H. J. Nov. 9, 1938, No. 32532. [Class 9 (i)] A . blasting detonator or electric fuze is inserted in a split - tube sheath which forms a piercing or cutting device for the insertion of the detonator into the explosive stick. The sheath 1 may be attached to the detonator 4, Fig. 1, by a metal ring 5 which presses the ends 6, 7 of the prongs of the sheath on to the fuzecord 8. Prongs for anchoring the sheath to the explosive stick may be formed by bent-extensions of the ends 6, 7 or, as shown in Fig. 3, by arms 29, 30 extending radially and then downwardly from the ring 5. This Figure shows the application of the sheath to an electric fuze, 8c being a rubber plug gripping the leads 8a, 8b. The sides 37, 38 of the sheath may be extended as shown in Fig. 5 to protect the fuze-cord 8, when the latter is bent out of line with the detonator, as described in Specification 516,867, [Group II]. The sheaths are preferably stamped from sheet aluminium.
Patent GB-465967-A (GB)
Title: Improvements in or relating to intermittent feed motions for cutting and like machines for paper and like materials
IPC: B26D7/01
Filed: 1935-11-25
Abstract: 465,967. Cam mechanism; gearing for conveying rotary motion. DAWSON, PAYNE, & ELLIOTT, Ltd., PAYNE, R., and PAYNE, C. Nov. 25, 1935, No. 32553. [Classes 80 (i) and 80 (iii)] In a back gauge intermittent feed motion of a guillotine cutting or like machine, a rack 1, mounted in a horizontal frame 2 is adapted to slide in guides 3, and meshes with a pinion 5 directly connected to a ring 6 carrying a large number of spring-loaded pawls 7 which cooperate with a ring 8 adapted to be coupled to the feed shaft 9, by the clutch element 35, Fig. 4, faced with friction material 36 and actuated by a hand lever 37. The frame 2 is moved forwardly by a crank 15 on a shaft 16, the crank having a bowl 17 adapted to engage a lever 18 which engages a dashpot plunger 20 on the frame. The frame is returned by a weight on a cable 10 attached to the frame by a compound lever 11 pivoted at 12 to the fixed frame 4 of the machine, and a link 13 connected at 14 to the frame 2. The effective length of the driving stroke is varied by limiting the return stroke by means of stop rods 25 carried in a turret 23 mounted on a bracket 22 and which can be rotated to bring any rod opposite a stop 26 on frame 2. The stop rods are axially adjustable and can be secured by a set screw 24<1>. To cushion the impact at the end of each return stroke, the stop 26 is connected by a lever 28 to a dashpot plunger 29. A pedal-operated sprag 31, pivoted at 32 is adapted to co-operate with a recess 34 in the frame 2 to lock it at the end of each driving stroke. The pedal is depressed to release the frame after each cutting operation.
Patent GB-963558-A (GB)
Title: Agents for protecting textile materials against textile pests
IPC: D06M16/00
Filed: 1962-08-24
Abstract: A composition for protecting textile materials against pests comprises (a) a salt of a sulphonamide of the formula R-SO2-NH-R1 in which R is an aromatic or aliphatic radical and R1 is an aromatic, aliphatic or aralkyl radical and in which R and R1 can be substituted by halogen atoms and/or trifluoromethyl radicals; and (b) a compound of the formula <FORM:0963558/A5-A6/1> in which R1 is a halogen atom or a trifluoromethyl, alkyl, alkoxy, nitro, cyano, thiocyano, alkylsulphonamido or aryl sulphonyl group or a ureido or thio-ureido radical or an esterified carbamic acid group, R2 is a hydrogen atom or an alkyl or alkenyl radical containing up to 6 carbon atoms, optionally substituted by halogen atoms or hydroxyl groups, or an aryl radical of an organic carboxylic or sulphonic acid or cation of an inorganic or organic base, such as a sodium, potassium, alkylammonium or alkanolammonium ion and n stands for a whole number from 1 to 4.  The compositions may be employed in organic solvents, e.g. isopropanol, cyclohexanone or cyclohexanol. Specifications 738,758, 854,956, 856,452 and 948,833 are referred to.
Patent GB-911360-A (GB)
Title: Process for growing crystals
IPC: H01L21/00
Filed: 1960-09-22
Abstract: A dendritic crystal of a semi-conductor material crystallizing in a cubic lattice structure, e.g. silicon, is pulled from a super-cooled central portion of a melt heated by electron bombardment and contained in a crucible of the same material using a seed crystal having at least one interior twin plane and orientated as shown in Fig. 3.  An annular or arcuate electron gun may be employed.  The central portion may be melted before super-cooling by increasing the power of the electron gun or by employing auxiliary heating, e.g. a further electron gun or an induction coil.  A graphite shield, optional having heating means, may be situated above the electron gun to reduce the temperature gradient.  Electron bombardment may be effected at a vacuum of 5 X 10-4 mm.  The seed crystal may have an odd (preferably 3) or an even number of interior twin planes.  The pulled crystal may be intrinsic or may contain a doping agent which may be present in the material before melting or may be added <PICT:0911360/III/1> <PICT:0911360/III/2> <PICT:0911360/III/3> to the melt.  The tip of the seed may be melted before contact with the melt.  The seed may be plunged 0,2 inch into the melt before pulling. The pulling speed may be 0,5-12 inches/min. The central portion of the melt may be super-cooled 5 DEG -40 DEG C.  As shown in Fig. 1, a block of silicon 18 and a graphite support 16 are contained in a vessel having glass walls 30, an evacuation conduit 31, and an orifice 36 to enable withdrawal of the dendritic crystal.  A molten pool is formed by means of an electron gun 20 (see Group XL(a)) optionally together with auxiliary heating means (not shown).  After formation of the molten pool, heating is reduced so as to supercool the central portion 54 of the melt (Fig. 2) and pulling is commenced. The electron gun may be rotated during pulling.  Specifications 889,058 and 911,359 are referred to.
Patent GB-921751-A (GB)
Title: Improvements in or relating to anti-reflection coatings and articles coated therewith
Inventor: NUTTALL THOMAS CAYTON
IPC: G02B1/11
Filed: 1958-10-14
Abstract: 921,751. Anti-reflecting coatings. BUSH & RANK CINTEL Ltd. Oct. 13, 1959 [Oct, 14, 1958], No. 32718/58. Class 97 (1). Reduced surface reflection within a desired waveband is obtained by applying to the transparent body first and third layers of a material of higher index than the body and second and fourth layers of a material of lower index than the body, the total thickness of the first and   third layers being equal to # 1 /2 (# 1  being a wavelength within the chosen band), the thickness   of the fourth layer being # 2 /4 (# 2  also being a   wavelength within the band and differing from # 1 ) and the thickness of the second layer being proportional to the excess of the refractive index of the material forming this layer over the square root of the index of the body such that a desired variation of reflection with wavelength is obtained. The high index material may be cerium oxide and the low index material magnesium fluoride. The Specification contains spectral curves indicating the variation of reflection with wavelength. Specification 697,403 is referred to.
Patent GB-1397136-A (GB)
Title: Device and method for cooling hot-rolled metallic strips
IPC: B05C5/00
Filed: 1972-07-13
Abstract: 1397136 Cooling rolled strip CENTRO SPERIMENTALE METALLURGICO SpA 13 July 1972 [17 July 1971 22 June 1972] 32752/72 Heading B3M A cooling box, for directing water on to a hot-rolled strip between the final stand of a mill and a coiler, provides a film of water from a transversely disposed slit having convex side walls. The film has low turbulence and may be adjustable in flow rate and direction. Similar boxes may be positioned both above and below a strip being cooled. In one form, Fig. 3, the box has lower slits 11 defined between shaped walls 10 and a vertically adjustable profiled blade 12. In place of the single blade, a number of blades may be provided along the length of the box, or several boxes may be provided transversely of the strip. In an alternative form, Fig. 8, the box has curved side walls 30 which define the shape of the water film, the walls being rotatably or laterally adjustable. In a further embodiment, Fig. 9, the water film passes between shaped walls 33 and a central blade 35 to an outlet slit 34.
Patent GB-1327009-A (GB)
Title: Carrier for nails for nail driving devices
IPC: F16B15/08
Filed: 1972-07-13
Abstract: 1327009 Packaging nails GUNNEBO BRUKS AB 13 July 1972 [14 July 1971] 32903/72 Heading B8C A nail carrier strip, for use in a nail-driving device, comprises a rigid U-section strip 1 whose bottom part 2 carries group of studs 8, 9, 10 to hold the nail 6, the studs 10 on the downstream side of each nail in the feed direction being flexible, whilst the studs 8, 9 on the up-stream side are rigid. The nails are inclined so that their heads 7 overlap. Another embodiment has rigid studs 10<SP>1</SP> between cut-outs 12 which allow displacement of these studs (Fig. 3). In various embodiments, different groupings and numbers of studs are shown, the number of side portions 3 also being varied. The ends of strips 1 may have tongues and slots to permit end-toend connection. The strips may be stacked.
Patent GB-825051-A (GB)
Title: Improvements in or relating to telephone sets for private telephone systems
IPC: H04M1/274
Filed: 1955-11-17
Abstract: 825,051. Telephone sets. GYLLING & CO. A. B. Nov. 17, 1955 [Nov. 17, 1954], No. 32929/55. Class 40 (4). A loud-speaking telephone set in a 100-line intercommunication system comprises quickcall buttons bearing the names of 30 frequently wanted subscribers. A call is made by operating one switch in each of two groups of switches associated with numerical buttons 0-9, VOV2 or by successive operations in a single group of switches associated with buttons 0-9. In one arrangement a quick-call button 20 operates the corresponding switch of each group. The switch contacts 27, 31, Fig. 2, are operated by yokes 24, 28 pivoted at 25, 26 and 29, 30. The button 20 comprises a neck 21 terminated with a narrow stem 22 which passes through a hole 23 in the yoke 24 and engages the yoke 28. A single yoke is common to all the quick-call buttons of a row or of a column. The numerical buttons 0 to 9, V0 to V2 may engage either the corresponding yokes or individual switches. Alternatively, each quick-call button may control an individual pair of switches. In a modification, a common switch operating member bears the names of all the ten subscribers of a column. To call a subscriber it is then necessary to press the appropriate name label and the one button in the vertical group 0 to 9 that is in the same horizontal row as the name. In Fig. 1, buttons 14 and 15 are for reversing the direction of speed and for breaking the connection at the end of a cell. A red lamp 16 indicates whether a channel is available and a green lamp 17 indicates the condition of the set itself.
Patent GB-957203-A (GB)
Title: Transistor signal storage and transfer circuits
IPC: H03K19/09
Filed: 1960-09-26
Abstract: 957,203. Transistor bi-stable circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Sept. 26, 1960 [Oct. 6, 1959], No. 32939/60. Heading H3T. [Also in Division G4] A transistor binary digit storage circuit for use in a shift register is formed substantially as shown in Fig. 3 or 5. The blocks A1 represent circuits of the type shown in Fig. 1 in which an output is produced only when both inputs are positive, blocks I are inverters similar to Fig. 1 but using only one input terminal and the delay is formed by two inverters connected in cascade. In Fig. 3, upon the occurrence of a shift pulse at 38 an output is produced at 39 corresponding to the input at 37 from the preceding stage and the output remains until the next pulse. Blocks 33 and 36 form a crosscoupled memory circuit which switches at the end of the shift pulse to correspond to the input at 37 and remains in this state until the termination of the next shift pulse. Fig. 5 operates in a similar manner except that the output at 79 is the inverse of that stored and to the output from 78. Several stages may be coupled together to form a shift register or ring counter (Fig. 4, not shown) in which case block 33 of one stage may be combined with block 31 of the next stage.
Patent GB-209911-A (GB)
Title: Improvements in or relating to transmission systems
IPC: H04Q1/442
Filed: 1922-12-02
Abstract: 209,911. Western Electric Co., Ltd., (Western Electric Co., Inc.). Dec. 2, 1922. Filter and rejector circuits.-In telephone systems using composite ringing apparatus and having a high-pass filter F arranged between the points of connection of the 135-cycle and 16-cycle signalling currents, an impedance 26, usually an inductance, is associated with the line and is adapted to render the circuit looked at from the left anti-resonant for a frequency of 135, i.e. current of that frequency is substantially suppressed by the circuit. Some of the condensers of the filter are shunted by resistances R to eliminate differences in impedance which would otherwise exist for different frequencies transmitted. In order to minimize reflection of speech currents by the filter the circuit 3, 4 in which the 135-cycle current passes is so designed that when taken with the filter and its circuit, the impedance looking into the filter and signal circuit is equal to the impedance of the line looking away from the filter.
Patent GB-1393625-A (GB)
Title: Safety glass laminates
IPC: C03C27/12
Filed: 1973-07-11
Abstract: 1393625 Glass laminates GULF RESEARCH & DEVELOPMENT CO 11 July 1973 [13 July 1972] 32990/73 Heading B5N A safety glass laminate comprising two or more glass layers at least two of which are bonded together with a copolymer containing 3-50 mol per cent of acrylic acid and/or methacrylic acid, the balance of the copolymer being ethylene is heated to a temperature above the softening point of the copolymer and then cooled to ambient temperature, the laminate being quenched through at least a portion of this cooling temperature range to prevent haze formation. The laminate may be subjected to pressure during heating. The copolymer may be applied to the glass to effect bonding in the form of a dispersion in water or an organic diluent, an organic solvent solution, a dry powder or a self supporting film. The layers may be bonded together during the heat and pressure treatment or a previously manufactured laminate may be subjected to the treatment. The laminate may be heated to a temperature of 93-149‹ C. for 4-30 minutes, cooled slowly to a temperature of 93-107‹ C. if necessary, and quenched to a temperature below 52‹ C. e.g. by immersion in water maintained at or near the temperature to which the laminate is to be cooled.
Patent GB-1159453-A (GB)
Title: Improvements in or relating to the Extrusion of Plastics Tubing
IPC: B29C48/09
Filed: 1966-07-22
Abstract: 1,159,453. Screw extruders. REXALL DRUG & CHEMICAL CO. 22 July, 1966 [27 July, 1965], No. 33126/66. Heading B5A. A tube-forming extrusion moulding machine comprises a screw 12 driven by motor 17 via gearing 16 and mounted for rotation on a shaft 14, shaft 14 being itself rotatable via a gearwheel 30 and carrying at its downstream end a core member 22 which has a sliding/sealing fit at 24 with screw 12. In operation, screw 12 and core member 22 are rotated at different speeds in the same direction or in different directions. Shaft 14 and core 22 may be axially bored to permit pressure-fluid to be delivered internally of the extruded tube. Band heaters 31 are provided. Preferably the machine is operated to extrude vertically downwardly. The embodiment described, and shown in Fig. 2, does not form part of the invention as claimed.
Patent GB-898709-A (GB)
Title: Method for preparation of grafted copolymers
IPC: C08F291/18
Filed: 1958-10-17
Abstract: <PICT:0898709/IV (a)/1> Graft copolymers are obtained by ozonizing a polymer and then contacting it with the vapour of a monomer polymerizable by a free-radical mechanism, while maintaining the monomer vapour free from polymerization inhibitors, including air, whereby the monomer graft polymerizes on to the polymer.  Polymers specified are polyethylene, polyvinyl chloride, natural rubber and cotton. Monomers specified are acrylonitrile, acrylic acid, vinylidene chloride and vinyl acetate.  The polymer may be used in the form of a film, filament, a moulded body or particles. Polymerization may be accelerated by heat or the use of reducing agents, e.g. dimethylaniline or oxalic acid, which may be added either to the polymer or to the monomer.  When the starting polymer is continuous in form the reaction may be performed in an apparatus as shown in Fig. 2, wherein a polymer film 33 enters reactor tank 30 through inlet 31 by way of a liquid seal 34 and is passed by means of rollers through the reactor tank in contact with the vapour 36 of the monomer 37 and then leaves the reactor by way of an outlet and sealing arrangement similar to that provided on the inlet side.  The examples describe the grafting of (1) acrylonitrile on to polyethylene film, (2) vinylidene chloride on to polyethylene film, (3) acrylonitrile on to a film of polyvinyl chloride plasticized with a nitrile rubber, (4) acrylonitrile on to a pipe made from rigid polyvinyl chloride, (5) vinylidene chloride on to a cotton fabric, (6) vinyl acetate on to a ring of natural rubber, the resulting article being treated with sodium hydroxide, (7) vinylidene chloride on to pulverulent polyethylene, (8) acrylonitrile on to polyvinyl chloride, and (9) acrylic acid on to a filament made from high density polyethylene. Specification 898,710 is referred to.
Patent GB-646730-A (GB)
Title: Improvements relating to handles for coffins and the like
IPC: A61G17/04
Filed: 1948-12-15
Abstract: 646,730. Drop handles. HILL & CO., Ltd., C., and HILL, E. B. Dec. 15, 1948, No. 33232/47. [Class 52 (i)] An adapter for a handle a to enable a cotter pin attachment to be used instead of the usual knuckle joint shown on the left of the figure, consists of a small pin e having a reduced diameter shank engageable with the aperture in the shouldered part a2 of the handle lug the pin having a rounded groove e<SP>1</SP> to receive the cotter pin f.
Patent GB-864881-A (GB)
Title: Process for the production of 1-chloro-2:3-epoxy-4-hydroxybutane
Inventor: HAWKINS EDWIN GEORGE EDWARD
Filed: 1957-10-25
Abstract: 1-Chloro-2:3-epoxy-4-hydroxybutane is proproduced by treating the higher melting point isomer of 1:2-dichloro-3:4-dihydroxybutane with an alkali in a liquid reaction medium.  It is preferred to use an alkali metal hydroxide such as sodium hydroxide in an amount equivalent to the amount of the chlorobutaneglycol.  Suitable diluents are water and aliphatic alcohols containing not more than six carbon atoms.  The process can be effected at normal ambient temperatures, but heating or cooling may be employed if desired.  The product may be recovered by solvent extraction and/or distillation, preferably after any alkali in the reaction mixture has been neutralised. The higher melting point isomer of 1:2-dichloro- 3:4-dihydroxybutane is obtained from the lower boiling isomer of 1:2-dichloro-3:4-epoxy-butane by hydration, e.g. by heating with dilute sulphuric acid.  If the lower melting point isomer of 1:2-dichloro-3:4-dihydroxy butane is treated with alkali in a liquid medium a mixture of 3:4 epoxytetrahydrofuran, the higher boiling isomer of 3-chloro-4-hydroxy-tetrahydrofuran and unchanged starting material is obtained.  Specification 864,880 is referred to.
Patent GB-447547-A (GB)
Title: Improvements in automatic (so-called) writing apparatus
IPC: A61B5/11
Filed: 1934-11-21
Abstract: 447,547. Indicating telepathic, automatic, and like messages. BARNES, G. A. E., 106, Perth Road, Ilford, Essex. Nov. 21, 1934, No. 33461. [Class 132 (ii)] [See also Group VI] Apparatus for recording or in dicating the sub conscious or in voluntary mus cular movement of a human han( or limb comprise a platform having a single castor support 7 at one end and a pencil 2 held in a vertical or slanting hole at the other end. The castor 7 may be supported in the bearing case 5 by a ball race 6. The pencil is clamped by a screw 4 and the platform may be saw cut forming springy jaws. The platform may be in two parts connected by a hinge 14 which may be locked to set the platform at a convenient angle. The outer end of the platform may be Y-shaped, each arm with a pencil, thus suiting both right and left handed persons. Instead of a pencil the arm may carry a pointer when the device is used over a lettered or numbered sheet. Instead of a castor a smooth pin may be used. Nails 16 are inserted in the platform to tension the mind of the user and assist the working of the device.
Patent GB-1395403-A (GB)
Title: Diaphragm pump having a safety arrangement
IPC: F04B43/00
Filed: 1972-07-18
Abstract: 1395403 Diaphragm pumps; compressors; vacuum pumps E BECKER 18 July 1972 [15 Sept 1971] 33602/72 Headings F1A and FIN A diaphragm pump for gases or liquids comprises a working diaphragm 5 and a safety diaphragm 6 spaced apart to define a chamber 20 in which leakage collects to operate indicating means when the working diaphragm fails, the safety diaphragm 6 being more resilient than the working diaphragm, being reinforced or maintained at less severe temperatures or subjected to less severe flexing than the working diaphragm, to ensure that the working diaphragm fails before the safety diaphragm. As shown, chamber 20 communicates with an analyzer for detecting leakage and with a compensating chamber 51 with a diaphragm 52, which is connected to atmosphere or a controlled pressure through connection 53 and functions to absorb pressure variations in chamber 20 during normal operation. Contacts 56, 57 are closed on complete deflection of diaphragm 52 due to failure of diaphragm 5 (when acting as a vacuum pump). Chambers 20 and 51 may be filled with the fluid to be pumped to avoid contamination when diaphragm 5 fails. Diaphragm 5 may act to close the inlet port during the discharge stroke, Fig. 5 (not shown). In Fig. 2 (not shown), a pressure gauge is connected to chamber 20. In Fig. 3 (not shown), the safety diaphragm is cooled by a fluid circulating through a cooling coil (22).
Patent GB-434797-A (GB)
Title: Improvements in or relating to arrangements for moving bodies relative to reciprocating surfaces
IPC: A63F9/14
Filed: 1933-11-30
Abstract: 434,797. Ratchet devices; toys. MILLER, J. W., 5, Midhurst Avenue, Muswell Hill, and G. G. DEVICES, Ltd., 229, Plashet Grove, East Ham, both in London. Nov. 30, 1933, No. 33678. [Class 80 (iii)] [See also Group XV] A race-game toy comprises horses 22, a " course " 8 of napped cloth such as velvet, and a device worked by a handle 13 for vibrating the cloth to-and-fro. The cloth is mounted on cardboard or the like, supported by other cardboard or like rigid material, which rests on grooves in the sides 2 of a box. The reciprocations of the cloth cause the horses to progress to the right. When the handle is turned a starting " gate " 24 is raised by the impact of a wire 26 on an extension 27 on the " gate," and a polygonal disc 15 is rotated. A rod 18 is connected by a wire 21 with one end of the cloth and carries a pin 17 and a roller 16 which is pressed against the disc by a flat spring 20. The actions of the disc and spring cause the cloth to vibrate. In a modified construction the extension arm of the " gate " closes a switch when the gate is lifted by hand, and an electrical vibrator is set in motion. The gate may be moved by means of an arm passing up through a slot in the casing enclosing the operating mechanism. Instead of, or as well as, the track the fabric may be secured to the underside of the objects to be moved. The device may also be used as a conveyer for light articles and in advertising-apparatus. Specifications 302,220, 335,575, [both in Class 132 (ii)], and 399,383, [Group XV], are referred to.