baber/WOPTO huggingface dataset:
Patent GB-376056-A (GB)
Title: Improvements in or relating to a clip device for a pencil or other implement of similar shape
IPC: B43K23/00
Filed: 1931-08-11
Abstract: 376,056. Clips. McENERY, J. P., 160, Percy Street, Flushing, Long Island, New York, U.S.A. Aug. 11, 1931, No. 22732. Convention date, Dec. 30, 1930. [Class 44.] A clip device for a pencil or other implement of similar shape comprises a holder for the pencil and a pair of clip-arms attached to the holder and embracing the pencil in the holder, the arms being adapted to clasp the plies of a folded article, score card, dance programme, or the like with the pencil interposed therebetween. A short and preferably flat pencil 13, Fig. 5, is mounted in a sheet-metal holder 14 which carries a pair of pivotally supported clip-arms 15 each made of wire bent into U-shape and provided at its ends with inwardly projecting pintles 16 which extend through apertures in the holder 14. The inner end of the pintle of each arm is bent at right-angles to form a lug 17 which engages a tongue 18 struck out of the holder 14. Each tongue 18 is provided with inwardly off-set projections 19 with which each lug 17 engages when each arm is either in clipping position or swung outwardly through 180‹; this engagement tends to urge the arms towards each other in either extreme position. The pencil 13 is shorter than the arms 15 and is adapted to be placed within the sides 11, 12 of a folded score-card &c. 10, Fig. 1, with the arms 15 clipping the folds together. When the arms 15 are swung outwardly through 180‹ they act as an extension for the holder 14 to facilitate writing. In a modification the pencilholder and clip-arms are composed of a single length of wire, the clip-arms comprising U- shaped portions 20, Fig. 11, and the pencilholder comprising a loop portion 21. The ends of the wire are soldered or welded together and to the holder 21 at 22, and the offset portions of the arms are soldered or welded together at 23. In this case the pencil is slightly larger than the arms 20 and is provided with a pair of grooves to receive the vertical portions of the loop 21. In another modification the pencilholder and clip-arms are composed of a single piece of sheet-metal, the holder comprising an elliptical loop 25, Fig. 15, from one end of which clip arms 26 are bent to overlie the holder in spaced relation thereto. The pencil 24 is slightly reduced at the end which projects into the holder so that the outer surface of the pencil and the outer surface of the holder are continuous. The sides 11, 12 of the score card &c. project into the space between the holder and the arms.
Patent GB-599282-A (GB)
Title: Improvements relating to step ladders
IPC: E06C7/16
Filed: 1945-09-04
Abstract: 599,282. Step-ladders. LOMAS, F. D. Sept. 4, 1945, No. 22747. [Class 20(ii)] The two top steps 16 of a step-ladder are hinged together at 18 so that they form a platform when the ladder is in the open position. The sides 11 are formed of sheet metal pressings, the outer edge being bent into a channel section 13 and the inner edge 14 bent, inwards at, right angles. The. steps 12, also formed of sheet metal pressings, have turned-down edges 15 and corrugated sheet metal reinforcing members 16 welded underneath them. A pair of sheet metal members 19 with turned down edges 22 hinged at 20, 21 prevent the ladder from spreading. A steadying support 24, having a hand grip at its upper end, may be secured to the top step, on to the side member or to both at one or at each side of the front or rear leg. Alternatively, it may be received in a socket or sockets 23 secured in these positions. The various parts of the ladder may be welded together.
Patent GB-1453369-A (GB)
Title: Reflex reflective polyester beads and a method for making the  same
IPC: C08L67/00
Filed: 1974-05-21
Abstract: 1453369 Production of cured unsaturated polyester beads KOPPERS CO Inc 21 May 1974 [21 June 1973] 22749/74 Heading C3P In preparing clear polyester beads by suspension polymerizing a curable resin composition of an ethylenically unsaturated polyester and an ethylenically unsaturated monomeric crosslinking agent in an aqueous suspension medium, the aqueous medium contains a selected watersoluble salt in an amount sufficient to improve the clarity of the cured polyester beads and, optionally, a suspending agent also. Salts which, giving a substantially basic reaction when dissolved in water, e.g. sodium carbonate, hydroxide, acetate or benzoate, react with the acid end groups of the unsaturated polyester are in general to be avoided, as are salts that interfere with the suspending agent, if one is employed. The preferred cross-linking agent is styrene or a mixture of 40-95% by weight styrene with 60-5% of a C 1 -C 4  alkyl acrylate or methacrylate. The examples disclose the preparation of cured polyester beads by suspension polymerizing in an oxygen-free atmosphere a resin composition comprising 30% of an unsaturated polyester prepared by reacting dipropylene glycol and maleic anhydride in equimolar amounts, and 70% styrene in an aqueous suspension medium including lauroyl peroxide catalyst, 0À1% polyvinyl alcohol as suspending agent and up to 8% of one of the following salts: KCl, CaCl 2 , MgCl 2 , BaCl 2 , NH 4 Cl, LiCl, MnCl 2 , CuCl 2 , NaBr, MgBr 2 , NaNO 3 , Na 2 SO 4 , AlCl 3 , Cu(NO 3 ) 2 , KCNS, sodium trichloroacetate and also potassium acid phthalate, sodium acetate and sodium maleate. In a further series, the suspending agent was starch, carboxymethyl cellulose, hydroxyethyl cellulose, acrylamidemethylacrylate copolymer, acrylamide-methyl methacrylate copolymer, tricalcium phosphate, aluminium silicate or barium sulphate and the salt was NaCl, KCl, MgCl 2  or NaBr. According to Example 43 an unsaturated polyester resin prepared by reacting 1,4-cyclohexane dimethanol, neopentyl glycol, tetrahydrophthalic anhydride and maleic anhydride in molar ratios of 2 : 2 : 1: 3 is cross-linked with an equal amount of vinyl toluene in an aqueous suspension medium containing 0À1% polyvinyl alcohol and 10% CaCl 2 . Other suspending agents particularly mentioned include natural gums, dextrans, gelatine, polyethylene glycol esters, polymeric cationic quaternary ammonium compounds and hydrated aluminium oxide. The combined use of polyvinyl alcohol as suspending agent and sodium chloride as the water-soluble salt, given in Specification 1,419,127, is disclaimed.
Patent GB-480330-A (GB)
Title: Improvements in or relating to blasting cartridges and charges
IPC: C06D5/02
Filed: 1936-08-18
Abstract: 480,330. Blasting cartridges ; explosives. IGNATIEFF, A., and HEATERS. Ltd. Aug. 18, 1936, No. 22782. [Classes 9 (i) and 9 (ii)] Relates to blasting-cartridges and charges of the kind comprising a pressure-resisting container wherein a gas which does not support combustion, such as carbon di-oxide, is confined under pressure by a sealing device capable of being suddenly opened under an increase in internal pressure and a combustible gas-producing charge in the container, together with means, such as an electrically fired fuze to ignite the charge, whereby, upon combustion of the charge, the pressure within the container rises to a point at which the sealing device opens and releases the compressed gas. According to the invention, the gas-producing charge employed comprises a self-combustible mixture comprising an oxidizer and a fuel in admixture with a non-combustible constituent (which upon combustion of the charge is' capable of yielding gaseous products) in a proportion sufficient. to render the charge not self-burning in the open but capable of rapid combustion when confined in the presence of the gas. The non-combustible constituent, which may consist of ammonium oxalate or phosphate, magnesium chloride or sulphate, zinc sulphate or sodium bicarbonate, is preferably such as to afford a large volume of gaseous products with but a small or no solid residue, whilst the self-combustible mixture may contain a considerable excess of the oxidizer over the fuel. According to one example, the gas-producing charge comprises 60 parts by weight of potassium perchlorate, 9 parts by weight of salicylic acid, 1 part by weight of castor oil and 30 parts by weight of ammonium oxalate. The proportion and grain size of the non-combustible constituent can be varied, the amount of ammonium oxalate ranging from 18 to 43 parts by weight of the mixture. If desired, the excess of potassium perchlorate may be replaced by ammonium nitrate. Amongst other examples given, the charge may consist of (a) potassium perchlorate, starch, borax, castor oil and ammonium oxalate or (b) potassium chlorate, charcoal, magnesium sulphate and castor oil. Specifications 397,203, 413,823, 415,026, and 430,258 are referred to.
Patent GB-463854-A (GB)
Title: Improvements in or relating to reciprocating pumps
IPC: F04B1/04
Filed: 1936-08-19
Abstract: 463,854. Revolving - cylinder pumps. BOSCH AKT.-GES., R. Aug. 19, 1936, No. 22798. Convention date, Aug. 20,1935. [Class 102 (i)] [Also in Group XXVI] A pump, suitable for petrol, comprises a drum 2 driven by a shaft 6 and having radial bores 4 housing pistons 3, the ends of which are slotted to engage an eccentric ring 9. Ports 14, 15 connect the cylinder spaces to the suction and delivery pipes 7, 8 and the casing 1 is filled with lubricant under pressure which forces the drum 2 against the casing and seals the ports 14, 15. Fig. 3 shows two drums 2 driven by the shaft 6 and the cylinder bores 4 are arranged to open to the periphery of the drum. A spring 13 assists the lubricant pressure to force the drums against the casing 1. The shaft 6 is lubricated by the port 11. The pump may comprise one drum arranged as shown in Fig. 3. The lubricant in the casing lubricates the pistons 3.
Patent GB-621667-A (GB)
Title: Hydraulic shock absorber
IPC: F16F9/516
Filed: 1946-04-29
Abstract: 621,667. Hydraulic shock-absorbers. FOCHT, N. S. April 29, 1946, No. 22801/48. Divided out of 621,625. Drawings to Specification. [Class 108 (iii)] The invention relates to hydraulic piston and cylinder type shock-absorbers of the kind described in Specifications 593,954, 594,006 and 594,007, in which liquid flow through the piston is controlled by a cup-shaped disc valve adapted to open against spring means under shock thrust applied to the piston, and flow through the valve is regulated by a tapering metering-pin adapted to move with the valve and to move gradually in the return direction following the closing of the valve, so as to give a throttled effect on the rebound after the shock thrust. According to the invention a disc on the metering-pin is arranged to enter within the side wall of the cup-shaped discvalve, so as to control liquid flow through the valve and regulate the final portion of the return movement of the metering-pin. The subject-matter of the Specification is identical with that described in Specification 621,625, but the claims differ.
Patent GB-217108-A (GB)
Title: Improvements relating to separators for electric accumulators
IPC: H01M2/16
Filed: 1923-09-12
Abstract: 217,108. Hampton, H. J. Sept. 12, 1923. Separators for storage batteries consist of matted, felted or other sheet form of glass wool glued or cemented to a thin wood sheet. The wood sheet may be provided with ribs, in which case the glass wool is laid across the ribs to form channels in the separator. The glue or cement may subsequently be dissolved in the electrolyte.
Patent GB-372642-A (GB)
Title: A safety razor containing a reserve of spare blades
IPC: B26B21/26
Filed: 1931-08-13
Abstract: 372,642. Safety razors. JULLIARD, M. E., 28, Avenue Victor Emmanuel III, Paris. Aug. 13, 1931, No. 22923. Convention date, March 18. Addition to 372,184. [Class 30.] In a safety razor of the kind described in the parent Specification wherein the blade is in the form of a single-edged strip 2 wound into a spool housed in a hollow part of the handle and fed into a channel between upper and lower fixed jaws 30, 7 of a shaving head, the used part of the strip projecting from the head being broken off by the user, the blade spool is housed in a separate container or refill 21 substituted for an exhausted container, and the container also comprises the toothed feeding wheel 11 engaging the row of. perforations in, the strip. The free end of the spindle of the feed wheel 11 is supported in a depression 34 of the handle. A grease-impregnated pad 26 lubricates the strip and provides a water seal. A cover of sheet metal is pressed on to the walls of the container and removed before its insertion into the razor. The bottom of the container forms a side wall of the handle, the container fitting tightly into position and being retained by engagement of the end of the blade strip in the shaving head. The lower or guard jaw 30, which has a single slot beneath the blade edge, is shorter than the upper jaw 7 to protect the user from the broken edge in the head and to facilitate breaking the strip. The guard also has a scraper projection 32 which blunts the edge of the used blade on its passage out of the shaving head. The shaving head has a scum-receiving strip 33 at rightangles to it. The part 3 housing the spool container may have a handle depending from it, and the shaving head may spring directly from it without an intermediate neck. The Specification as open to inspection under Sect. 91 (3) (a) states also that the container, which may be of tin plate or cast aluminium, has a central projection receiving a toothed cross-piece. which engages the perforations in the strip to prevent transverse movement of its cutting edge into contact with the cover. The strip may alternatively be fed into the shaving head by an axle at the centre of the spool, and more than one strip may be used. This subject-matter does not appear in the Specification as accepted.
Patent GB-314710-A (GB)
Title: Improvements relating to brakes or checks for casement windows, doors and the like
IPC: E05D7/08
Filed: 1928-08-09
Abstract: 314,710. Helliwell & Co., Ltd., and Holton, J. W. Aug. 9, 1928. Disc and like plate hinges.-A hinged door, window or like member is supported by pivots C which project from a disc plate c attached to the window A and carry a spring-pressed plunger in a cylinder d, the plunger bearing against the face of the plate E attached to the window frame B. The pressure of the plunger against the face of the plate is adjustable by means of screw d<2>. The thrust of the plunger against the plate E may be supported by an arm d<3> which extends from the cylinder across to the other side of the plate. F is a guard for sealing the joint between the plate c and the frame. If desired, more than one spring-pressed plunger may be employed.
Patent GB-1235280-A (GB)
Title: A prestressed concrete vessel for a nuclear reactor
Inventor: ARATHOON JEAN-PAUL
IPC: G21C13/093
Filed: 1970-05-12
Abstract: 1,235,280. Reactor pressure vessels. SOC. POUR L'INDUSTRIE ATOMIQUE. 12 May, 1970 [13 May, 1969], No. 22959/70. Heading G6C. In a high temperature nuclear reactor, the core is housed in a prestressed concrete pressure vessel the walls of which contain cavities enclosing heat exchangers and blowers. Transverse prestressing cables pass through the concrete along curved paths and are secured to ribs formed on the vessel outer surfaces. The core rests in the cavity 3 surrounded by the wells, 4, 4a to 4e. Prestressing is effected by the cables 9, 10 anchored to the inclined surfaces of the ribs 6. The vessel is prestressed longitudinally by cables (not shown).
Patent GB-387611-A (GB)
Title: Improvements in or relating to feeding devices for roller mills for cereals
IPC: B02C4/28
Filed: 1932-08-16
Abstract: 387,611. Roller mills. BUHLER BROS., Uzwil, Switzerland. Aug. 16, 1932, No. 22965. Convention date, Jan. 29. [Class 59.] In a feeding device for roller mills in which a feed gap regulator 6 is controlled by a lever system 4, 3 from a flap 1 in the feed inlet chamber, the uppermost position of the flap is such that the point of contact a between the co-operating levers lies on the righthand side of the line joining the pivots 2, 5. As shown the flap 1, on which the cereals impinge on passing to the feed gate 6, is pivoted on a bar 2 provided with a lever arm 3 adapted to move with the flap- This arm bears on another lever arm 4, which may be extensible, extending from the feed gate 6 pivoted at 5. The point of contact a between the two lever arms moves upwardly along the arm 3 as the flap 1 moves downwardly so that the feed opening 7 opens at a more rapid rate and consequently the sensitiveness of the feeding device is increased.
Patent GB-1062865-A (GB)
Title: Heat and light sensitive materials and processes therefor
IPC: G03C1/58
Filed: 1964-06-03
Abstract: 1,62,865. Light and heat sensitive materials. ITEK CORPORATION. June 3, 1964 [June 3, 1963], No. 23024/64. Heading G2C. A heat and light sensitive composition comprises a diazo sulphonate salt of formula R-N=N-SO3X wherein R is aryl and X is an alkalimetal ion, a coupling agent therefor and a diazomium salt dissolvable by light to supply a diazonium cation. This composition is applied to a support and either imagewise exposed to infrared radiation and fixed by light or imagewise exposed to either ultraviolet light and developed by heat. An overcoat of a wax or resin may be applied over the sensitive layer and the composition may be applied to a support coated with polyvinyl acetate. The support may be infrared transparent, e.g. glassine.
Patent GB-950827-A (GB)
Title: End fitting for flexible cables
Inventor: BONNER DAVID GORDON
IPC: F16C1/14
Filed: 1959-07-04
Abstract: 950,827. End fittings for cables. GIRLING Ltd. July 4,1960 [July 4,1959], No. 23069/59. Heading D1T. An end fitting for a cable 13, Fig. 2, having a nipple or sleeve 12 secured directly thereon, comprises a U-shaped member 10 apertured at 11 in its base to accommodate the cable and slotted at 14 in its side walls, the inner edges of the slots 14 gripping and centralizing the nipple or sleeve 12. The extremities 15 are joggled inwardly and have apertures 16 for a coupling pin. In a modified construction, Fig. 5, the aperture 11 is replaced by a slot 17 and the nipple or sleeve 12, Fig. 7, has opposed flats 18 that engage in the slot 17 to prevent angular movement of the nipple in the fitting.
Patent GB-1055695-A (GB)
Title: Electron tube
IPC: H01J19/74
Filed: 1964-06-04
Abstract: 1,055,695. Thermionic valves. VARIAN ASSOCIATES. June 4, 1964 [June 12, 1963 (2)], No. 23300/64. Heading H1D. The cathode structure of an electron tube comprises an electron-emissive member 24 and a heater 46 electrically connected in series therewith, a heating current being passed through the series connection to heat the member directly and/or indirectly by radiation from the heater, this current being controlled by a signal indicative of the temperature of member 24 obtained at an external terminal of the tube. As shown, a tetrode comprises a tubular molybdenum wire braid heater 46 connected in series with a thin, perforated cathode cylinder 24 of nickel alloy having an external emissive coating. The resistance of heater 46 increases with temperature, so that initially the cathode 24 is directly-heated, an overvoltage being supplied across terminals 20, 22 to achieve a warm-up time of 0À1 second. When the cathode reaches emitting temperature the overvoltage is removed by use of a switching relay which may be energized by a discharge occurring between an internally emissive portion of cathode 24 and an auxiliary anode 51. Alternatively, the switching relay may be energized by a Wheatstone bridge control circuit, in which an unbalance is produced by the increased resistance of heater 46 when hot. In the latter case auxiliary anode 51 is replaced by a lead connecting the joint between heater 46 and cathode 24 to one of the terminals 22.
Patent GB-598797-A (GB)
Title: Production of anthraquinone compounds
IPC: C09B1/24
Filed: 1945-09-10
Abstract: 1-Amino-2-sulpho-4-bromanthraquinone is prepared by brominating 1-amino-2-sulphoanthraquinone in an aqueous acid containing an inorganic salt in such concentration that 1-amino-2-sulpho-4-bromanthraquinone precipitates as it forms without precipitation of the 1-amino-2-sulphoanthraquinone.  Acids specified are hydrochloric and sulphuric acids, and salts specified are sodium and potassium chlorides, and sodium sulphate.  The reaction mixture after bromination may be mixed with hot water to redissolve the 1-amino-2-sulpho-4-bromanthraquinone, and any 1-amino-2 : 4-dibromoanthraquinone filtered off.  An example is given using sodium chloride and hydrochloric acid.  The 1-amino-2-sulphoanthraquinone is preferably in a concentration of 2-4 per cent based on the weight of water present, and the bromine is preferably added as a 10 per cent solution in 15-20 per cent hydrochloric acid, 10 per cent excess bromine being used to compensate for any dibromination.
Patent GB-274675-A (GB)
Title: Improvements in or relating to end grips for cables
IPC: H02G7/05
Filed: 1926-09-21
Abstract: 274,675. Callender's Cable & Construction Co., Ltd., and Isherwood, W. H. Sept. 21, 1926. Couplings. - In an end grip ior a stranded cable wherein the individual strands of the cable are turned over the coned surface of a ferrule and then gripped by an internally coned sleeve, the ferrule A is rendered compressible by having one or more slits A<1> extending for a part or its length so that when the internally coned member D is pulled up the ferrule is caused to grip the cable firmly within it. Spaced lugs B adapted to accommodate between them two or more stands C may be provided at the larger end of the ferrule A.
Patent GB-371729-A (GB)
Title: Improvements relating to the hinging of windscreens for motorcars and the like
IPC: B60J1/04
Filed: 1931-08-19
Abstract: 371,729. Vehicle windscreens. NAPOLEON, B., 23, Gloucester Street, Rosebery Avenue, London. Aug. 19, 1931, No. 23352. [Class 103 (ii).] A hinge for a vehicle windscreen is constituted by a strip of flexible material inserted in grooves formed by flanges on the windscreen frame and the carrying member. The windscreen frame a has flanges to receive the glass and also a pair of flanges d on the outside of the frame, and the member f to which the screen is hinged has a pair of flanges g similar to d. The flexible strip e, which is preferably of leather such as waterproof chrome leather, is inserted in the grooves formed by the pairs of flanges d, g by sliding it along these grooves, and is of sufficient width to leave a small space between the flanges d, g on the inside of the windscreen. For security one or both flanges of each pair may have a rib, as shown, engaging a slot cut or pressed in the strip e ; cement may be used, or the flanges may be closed in on the strip, if desired.