baber/WOPTO huggingface dataset:
Patent GB-356252-A (GB)
Title: Improvements relating to nitrocellulose
IPC: C08B5/02
Filed: 1930-06-05
Abstract: Pulp board made from cotton cellulose is divided into substantially uniform small pieces without affecting the conformation of the fibres, and the small pieces of high density are treated with nitrating acid containing not less than about 40 per cent of nitric acid.  The systematic division of the pulp board may be effected by a machine commonly used for cutting sheets of nitrocellulose plastics into powder grains.  Or the boards may be passed through a paper shaving machine to form narrow strips which are then cut into grains by means of a guillotine or by means of revolving knives.  For larger pieces an ordinary guillotine machine may be used.  The pieces may be punched out from the boards in the form of small circles.  The pieces may be about one-eighth of an inch square and have a bulk density three or four times that of well-pressed cotton linters. The proportion of nitric acid is varied according to the hardness of the cotton pulp sheets and may be 70 or 80 per cent of the acid mixture. The volume of acid may be as low as five times the weight of the cellulose.  Nitration may be effected by the pot process and after removing the acid and drowning in water, the product may be stabilized and treated to lower the viscosity in known manner. Alternatively, a displacement or mechanical process or a combined mechanical and displacement process may be used. The product may be finished in the dense condition in which it is formed, or it may be pulped and then finished in the usual manner. The nitrocellulose produced is particularly suitable for the manufacture of propellant powders, blasting explosives, varnishes, finishes, films, leathercloth, celluloid, and linoleum plastics.
Patent GB-387578-A (GB)
Title: Improvements in or relating to internal combustion engines of the hot-bulb type
IPC: F02B9/00
Filed: 1932-06-20
Abstract: 387,578. Oil engines. BAGNULO, A., 54, Rue Armand Silvestre, Courbevoie,. Seine, France. June 20, 1932, No. 17456. Convention date, Nov. 4, 1931. Addition to 387,461. [Classes 7 (iii) and 7 (vi).] The parent Specification relates to a hot-bulb engine in which the hot bulb is thermally insulated from the heat of the cylinder. The engine is operated by a mixture of different fuels admitted in liquid form, the fuel s intermingling in a chamber P before entering the hot bulb L through a valve K. The fuels are fed through separate conduits F, G which terminate in calibrated nozzles M, N that may becontrolled separately or simultaneously by a common valve D, E. This valve may control a main air throttle valve C. An igniter in the hot bulb may be operated continuously instead of at starting only, as described in the parent Specification. The engine may operate on a four-stroke cycle, in which case the air admitted through the chamber P to the hot bulb is limited to the amount required for spraying the fuel, the air for combustion being admitted in the normal way.
Patent GB-761660-A (GB)
Title: Improvements relating to syphon bottles for containing aerated liquids
Inventor: WILSON JAMES WILLIAM
IPC: B67D1/04
Filed: 1953-06-24
Abstract: 761,660. Syphon bottles. REPTON ENGINEERING CO., Ltd. Sept. 9, 1954 [June 24. 1953]. No. 17461/53. Class 14(1) In a syphon bottle the upper end of the syphon tube 13 is secured to a sleeve 15 having a flange 16 interposed between rubber washers 17, 19, which make a fluid tight joint with the mouth of the bottle and the head fitting 3 when the internally threaded skirt 8 of the fitting is screwed on to a threaded divided ring 9 surrounding the bottle neck. One half of the ring 9 has dowels 12 engaging sockets in the other half. A spring-loaded valve member 5 operated by a lever 6 controls the passage of liquid through bore 21 to the nozzle 4.
Patent GB-516870-A (GB)
Title: Improvements in luminescent materials
IPC: C09K11/72
Filed: 1938-06-13
Abstract: 516,870. Luminescent materials. GENERAL ELECTRIC CO., Ltd., and McKEAG, A. H. June 13, 1938, No. 17492. [Class 39 (i)] A luminescent material contains cadmium, manganese, sodium, fluorine, phosphorus and oxygen and is prepared by a process whose finished product has a crystal structure defined by X-ray spacings as set out in a table in the specification ; when excited by radiation of wave length 2,537 A.U. the emitted light is warm, i.e., departs from white in the red or yellow direction. In one process a mixture of which the components are cadmium phosphate, manganese phosphate and sodium fluoride is heated, the proportions and method being described. The material is used in cathode ray tubes, and with high and low pressure mercury discharge lamps. It may also be used with other luminescent materials. Specification 495,706 is referred to.
Patent GB-717992-A (GB)
Title: Coupling for drill rod sections
IPC: E21B17/046
Filed: 1952-07-11
Abstract: 717,992. Percussive drills. SANDVIKENS JERNVERKS AKTIEBOLAG. July 11, 1952, [July 13, 1951.] No. 17534/52. Class 124. A coupling for rock drill rod sections comprises a sleeve having helicoidal grooves in its inner surface adjacent its opposite ends and spaced apart at the centre and rod sections having matching helicoidal ridges spaced apart from the contacting ends, the grooves and ridges having a pitch angle greater than 30 degrees. As shown, a sleeve 1 has helicoidal grooves 6 which engage with similar ridges 7 on rods 2 and 3, the ends of which abut at the centre of the sleeve and may occupy a length of one-seventh to six-sevenths of the length of the sleeve. The grooves may extend less than 360 degrees round the circumference of the sleeve and may penetrate through the wall to form slots, Fig. 4 (not shown). There may be one, two, or more grooves at each end of the sleeve.
Patent GB-392002-A (GB)
Title: Improvements in spinning toys of the bandelore type
IPC: A63H1/30
Filed: 1932-06-21
Abstract: 392,002. Spinning-toys. DEHN, F. B., 103, Kingsway, London.-(Duncan, Inc.,. D. F. ; 28, North Sheldon Street, Chicago, U.S.A.) June 21, 1932, No. 17542. [Class 132 (iii).] A spinning-toy of the kind comprising two circular discs 5, 6 connected by a short central stub 7 is provided with a cord positioned on the stub by a loop 9 loosely surrounding the stub in order to facilitate the rotation of the stub in the loop when the cord has been completely - unwound. The cord is formed of a single string folded intermediate its ends and twisted together as shown. The discs of the toy may be made of cup-shaped metal members 20, Fig. 5, closed by flat plates 21. A central hub secured by rivets connects the discs. Openings 25 may be provided in the cup-shaped members to produce a sound upon rotation of the toy. Reference has been directed by the Comptroller to Specification 209,288, [Class 132 (iii), Toys].
Patent GB-542188-A (GB)
Title: Improvements in sleeve valve internal combustion engines
IPC: F01L5/10
Filed: 1940-12-11
Abstract: 542,188. Valves. KAMMER, G. S. Dec. 11, 1940, No. 17563. [Class 7 (vi)] In an engine having a sleeve valve 18 the upper edge of which controls ports and in its highest position almost meets a shoulder or step 17 in the upper end of the cylinder 4, the piston 9 passing over the gap A between the sleeve and shoulder, this gap is maintained practically constant while the normal split piston rings are passing it by actuating the sleeve by mechanism giving a pronounced dwell at the upper dead-centre, and the internal edge of the shoulder is chamfered as at 27. There is provided a clearance E between the sleeve and cylinder, and the lower edges 20 of the piston rings (one of which is shown at 25) are also chamfered, as well as both edges of the grooves for the piston rings. The valve may be actuated as described in Specifications 506,326, 526,060 and 542,607, while the ports may be arranged as described in Specification 541,409, and the piston constructed as described in Specifications 530,534 and 539,568, [both in Group XXVI].
Patent GB-319390-A (GB)
Title: Improvements in or relating to the colouration of materials comprising cellulose derivatives
Filed: 1928-06-18
Abstract: 319,390. British Celanese, Ltd., Mosley, D. H., Olpin, H. C., and Ellis, G. H. June 18, 1928. Dye preparations; nitro compounds.-Compositions containing the dyestuffs obtained by coupling a diazotized2: 4-dinitro-6-alkyloxy or - alkyl-aniline with a coupling component are mixed with dispersators and/or protective colloids. The dispersators may be those described in Specifications 219,349, 224,925, 242,393, 242,711, 269,960, 273,819, and 273,820. Preparations containing a 2 : 4-dinitro-6-alkoxy- or -alkyl-aniline are also described. Specification 319,308 also is referred to.
Patent GB-1335626-A (GB)
Title: Preparation of sulphoxides and sulphones
IPC: C07C315/02
Filed: 1971-05-27
Abstract: 1335626 Sulphones; sulphoxides EASTMAN KODAK CO 27 May 1971 [1 June 1970] 17621/71 Heading C2C  Sulphides are oxidized to sulphoxides or sulphones and sulphoxides to sulphones by means of H 2 O 2  in the presence of a water-soluble zirconium salt. A chelating agent may be present. Examples prepare bis(2-hydroxyethylsulphonylmethyl) ether, bis(2-hydroxyethylsulphonylethyl) ether, butyl sulphone, benzyl sulphone, methyl phenyl sulphone, phenyl sulphone and tetrahydrothiophene-1,1-dioxide in two stage reactions from the corresponding sulphides via the sulphoxides (not isolated).
Patent GB-412410-A (GB)
Title: Game apparatus
IPC: A63F9/02
Filed: 1933-06-21
Abstract: 412,410. Mimic bomb - dropping apparatus. HAMBURGER, R., 3, Innsbruckerstrasse, Sch÷neberg, Berlin. June 21, 1933, No. 17672. Convention date, Feb. 2. [Class 132 (ii).] Apparatus for converting a gramophone or like talking machine into game apparatus comprises a support detachably mounted on the housing of the gramophone, a carrier supported thereby, one or more releasable bodies or projectiles each held by a holder on the carrier, means for releasing the said body, and a target detachably mounted on the turntable of the gramophone. The housing c of a talking machine has clamped to it supporting pillars a carrying frictionally in holes in them a carrier in the form of a rod f through a hole h in which the pin i of the projectile k projects. The projectile is held by a holder in the form of a spring-pressed armature n of an electromagnet m bearing against its side. By exciting the electromagnet the armature n can be drawn back to release the projectile k whose pointed end l penetrates the numbered target o of paper or cardboard with an underlying disc of soft wood or cork &c., the target o being mounted on the turntable g. The projectile can alternatively be released manually or be held by a spring and released by means of a wire release. The target can have numbered sectors of different area or one or more pictures can be applied to it. In a modification the projectile is held between two parts of a vice-like device which are slid apart by a wire release, by an electromagnet, or by hand. The carrier may have two or more holders for two or more projectiles. The turntable or the holder for the projectile can be locked and be released for a definite time by insertion of a coin.
Patent GB-1461517-A (GB)
Title: Water treatment device and process
IPC: B03C5/00
Filed: 1974-04-23
Abstract: 1461517 Electrolytic apparatus for treating water WATER TECHNOLOGY SERVICE Inc 23 April 1974 [2 May 1973] 17761/74 Heading C7B Water treatment apparatus 1 for connection to a flow line, e.g. for reducing water hardness in hotwater tanks, boilers, water towers &c., includes a conductive casing 2 having a flow-path therethrough e.g. between inlet and outlet passages 5, 6, divided into separate (e.g. inlet and outlet) chambers 9, 10 by at least one conductive perforated screen 7 supported in insulated relation e.g. in rubber gasket 11 within the casing across the flowpath, in which are positioned means e.g. two cleaning devices 20 for removing accumulated deposits from the screen. As shown, electric potential is applied between the upper casing 3 and the screen 7 via leads 13 and 14; upper and lower casings 3, 4 are connected by conductive fasteners 12. Each cleaning device 20 may comprise multi (e.g. twelve) edges 25 defining a spherical shape on three mutually perpendicular discs 21-23 fastened by welds 24. The fitting may be of brass and the screen of stainless steel. A D.C. voltage regulated to a predetermined level may be applied between the casing and screen(s) using a potentiometer and a series circuit including a transistor, meter and one or more resistors coupled across the voltage source, Figs. 5 and 6 (not shown), the base of the transistor being coupled to the wiper terminal of the potentiometer and opposite sides of the or each resistor being coupled to the screen(s) and casing.
Patent GB-1026140-A (GB)
Title: Improvements relating to the treatment of plastic coated wire
Inventor: FENTIMAN DENIS RICHARD
IPC: H01B13/34
Filed: 1964-04-29
Abstract: 1,026,140. Printing processes. MODERN PLASTIC MACHINERY CORPORATION. April 29, 1964, No. 17793/64. Heading B6C. [Also in Division H1] A plastics coating 13 on a wire 12 is treated to improve its adherence to inks in an apparatus comprising means for advancing the wire along a linear path between a pair of electrodes 21 and 22 connected across a voltage source 33 which establishes a discharge between the electrodes across the surface of the coating 13. The electrodes 21, 22 extend along the length of the wire, at least one has an insulating coating 27, and each has respective sharp discharge edges 29, 24. A second pair of similar electrodes 34, 36 connected across a source 38 may be provided at right angles to the first pair and spaced therefrom along the length of the wire. The sources 33 and 38 supply alternating current at between 1000 and 10,000 volts, and the presence of the discharge, which may be invisible, corona, or brush, is indicated by an increase in the readings of current meters 32 and 37.
Patent GB-406324-A (GB)
Title: Improvements in colouring compounds for printing coloured designs on textile fabrics
IPC: D06P1/92
Filed: 1932-06-24
Abstract: Printing.--A colouring compound or ink for printing coloured designs on textile fabrics is composed of a mixture of curd soap, heavy lithographic varnish and a dyestuff powder which is soluble in oil or fat but not in water.  25 per cent of curd soap and 75 per cent of heavy lithographic varnish are mixed together and 5 grains of dyestuff powder such as those known under the Trade Name of Sudan Colours is ground up with one pound of the mixture to form the colouring compound which may be applied by means of a zinco-graphic printing roller.  Specification 5464/87, [Class 146], is referred to.
Patent GB-904842-A (GB)
Title: Output device for data-processing systems, particularly for digital computers
IPC: G06F3/12
Filed: 1960-05-20
Abstract: 904,842. Typewriters. STANDARD TELEPHONES & CABLES Ltd. May 20, 1960 [May 23, 1959], No. 17882/60. Class 100 (4). Printing, character by character, is controlled by a format tape and an information tape, the format tape controlling the printing of fixed data and the positions of the variable data supplied by the information tape. The output of a computer 1 is perforated on a tape at 3 in " 2 out of 5 " code. The information is read and applied to a buffer store 6. Fixed data is read from a format tape at 4 and applied to a buffer store 7. Switch 9 is normally in right-hand position so that format data is applied through a further buffer store 10 to the printing device 5. At the detection in 7 of a special signal, however, circuit 8 reverses switch 9 to record computer information from store 6. This special signal occurs for each character of the computer information. A second type of special signal reverses switch 12 whereby a pair of digits from store 6 can be converted at 11 into a sign or an alphabetical character. A third type of signal can suppress computer information by advancing the tape at 3 quickly. Different formats 4 may be used, selection of a format being effected by characters on the computer tape via switch 13.
Patent GB-984543-A (GB)
Title: Improvements in or relating to electrical switches
IPC: H01H21/56
Filed: 1962-05-09
Abstract: 984,543. Plug boards; two-part couplings; mechanical switches, without quick action. BUCHANAN ELECTRICAL PRODUCTS CORPORATION. May 9, 1962 [May 25, 1961], No. 17899/62. Headings H2B and H2E. A switch assembly for mounting on a terminal block comprises a pair of clip assemblies each including a contact member for connecting to conductors and a clip member, and a switch blade releasably pivoted in one clip member. As shown, Fig. 2, the switches are mounted on interlocking base members 14 which have a series of projections and recesses into which the clip assemblies are a press fit. As shown, Fig. 4, the clip assemblies 13 consist of a contact member 18 with a recess 78 and a set-screw 80 to secure the conductors and a strap 15 which joins the connecting member to the clip member 20 has a tab 89 to limit the insertion of the switch blade 22 and a hole 90 into which a projection on one end of the switch blade fits, providing a releasable pivot. The switch blade 22 is provided with an insulating handle 96. In use, the blade 22 is used as a switch pivoting about its projection located in the hole 90 of one clip assembly. The blade 22 may, however, be completely removed to prevent accidental closure of the switch.
Patent GB-468879-A (GB)
Title: Improvements in and relating to the pneumatic separation of coal or other granular materials
IPC: B03B4/02
Filed: 1936-06-29
Abstract: 468,879. Separating solid materials. BAMAG-MEGUIN AKT.-GES. June 29, 1936, No. 18058. Convention date, June 28, 1935. [Class 117] Apparatus for separating granular material according to density as in the separation of coal from admixed slate and other products comprises a series of separate troughs 1 . . . 5, Fig. 1, which are pervious to air and are inclined upwardly from the feed end and given a reciprocating motion so as to convey the material upwardly against gravity. The inclination of the troughs increases progressively from the feed end and the heights of the side walls, decrease progressively. Air is supplied independently to each trough from a main 11 through control valves 12 ... 16 and the air current to the first'trough is preferably continuous while that to the remaining troughs is pulsating. To secure favourable conditions of friction between the materials and the bottoms of the troughs the latter are preferably divided into cells by cross strips 21 and 22, Fig. 3, in which is deposited the small sizes of heavier material such as slate. The troughs are mounted on a frame 6 which is reciprocated on rollers 7 and wedges 8 on a stationary frame 19, the inclination of which is adjustable by the spring support 20.
Patent GB-421598-A (GB)
Title: Improvements in or relating to the manufacture of explosive compositions of the character of gelatin dynamites
IPC: C06B23/00
Filed: 1933-06-24
Abstract: 421,598. Explosives. DU PONT DE NEMOURS & CO., E. I., Wilmington, Delaware, U.S.A. June 24, 1933, No. 18076. Convention date, June 24, 1932. [Class 9 (ii)] An explosive composition of the character of gelatin dynamite is prepared by incorporating a gelatinized liquid ingredient with a vegetable pith of unrestricted absorptive capacity such as bagasse pith, pith of corn stalks or sunflower stalks, and others. The pith may be present in the amount of 0À5 to 15 per cent in the form of particles passing a 6-mesh screen and having a density not greater than 0À3, preferably between 0À and 0À3. The gelatinized liquid may be nitroglycerine-nitrocotton, and the explosive may contain additional ingredients such as dinitrotoluene, sodium and ammonium nitrates, ammonium chloride, starch, wood pulp, ivory nut meal, and chalk. Reference has been directed by the Comptroller to Specification 375,824.
Patent GB-530335-A (GB)
Title: Improvements in and relating to domestic fireplaces
IPC: F24B1/18
Filed: 1939-06-21
Abstract: 530,335. Fireplaces. BOX, A. S., and HADLAND, J. C. June 21, 1939, No. 18093. [Class 126] An electric fire or like normally housed in a recess in the hearth can be turned up as shown on parallel linkages when it is desired to use it instead of 'the coal fire.
Patent GB-357209-A (GB)
Title: Improvements in or relating to pupin coil boxes
IPC: H02G15/12
Filed: 1930-06-12
Abstract: 357,209. Inductances. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. June 12, 1930, No. 18095. Convention date, July 6, 1929. [Class 37.] Pupin coils are arranged in their container in horizontal rows, and preferably each row comprises the coils associated with complete quads. In one arrangement, Fig. 1, the coils s are carried between endplates f on bolts e mounted on plates a secured to the sides of the container which is closed by cover-plates d. In another arrangement, Fig. 4, the coils are carried on curved plates t welded to U-shaped vertical slats a on opposite sides of the container. In this arrangement, the coil sets are staggered to provide room for the incoming and outgoing leads of the quad, and are readily accessible by removal of the end-closing vertical bars l. Specification 258,232, [Class 37, Electricity, Measuring &c.], is referred to.
Patent GB-851447-A (GB)
Title: Adjustable height devices for use when standing in crowds whilst viewing sports, games, public functions and the like
IPC: A43B7/38
Filed: 1957-06-07
Abstract: 851,447. Elevators for attachment to boots and shoes. BARNARD, A. June 4, 1958 [June 7, 1957], No. 18119/57. Class 132(1). A disc-shaped platform 1 may be secured to each foot of a small person by adjustable straps 2, 3 each platform having an additional section 5 detachably secured thereto by flat coil-ended springs 6 which engage in slots in the platform. The platforms may consist of plastic e.g. polythene, cork, wood or the like. Further sections may be added in the same way.
Patent GB-583207-A (GB)
Title: Improvements in or relating to glass to metal seals
IPC: C03C27/04
Filed: 1945-07-16
Abstract: 583,207. Metal-to-glass seals. M-O VALVE CO., Ltd., MANNERS, M., and PARTRIDGE, J. H. July 16, 1945, No. 18134. [Class 36] A metal surface is prepared for sealing to glass, for use in the construction of thermionic valves, by applying a thin coating of alkali-free boro-silicate glass by an enamelling process, the enamel being fired in a non-oxidizing, or reducing, atmosphere. The enamel slip may be applied by dipping, painting or spraying. The coating is stated to be particularly advantageous for seals used under tropical conditions, and the following are given as suitable compositions :-
Patent GB-669422-A (GB)
Title: Process for the manufacture of moulded structural elements
IPC: C04B28/02
Filed: 1949-07-09
Abstract: 669,422. Moulding structural elements; cement compositions. DIRECTIE VAN DE STAATSMIJNEN IN LIMBURG. July 9, 1949 [July 10, 1948], No..18217/49. Classes 22 and 87(ii) Structural elements are moulded from a mixture of between 4 and 20 per cent by weight of cement and a plastic raw material, e.g. loess, containing at least 70 per cent of silica and between 10 and 20 per cent water, and having a grain size such that at least 60 per cent of the particles range between 20 and 60 microns. The mixture is placed in a mould and pressed and vibrated. The vibration is begun after the pressure has been applied and stopped before the pressure is relieved. The elements may be made more waterproof, either by coating them with a waterrepellent agent after they have been erected in a building or by adding such an agent to the mixture.