baber/WOPTO huggingface dataset:
Patent GB-649601-A (GB)
Title: Improvement in electromagnetic pump
IPC: F02B1/00
Filed: 1948-05-12
Abstract: 649,601. Electromagnetically - actuated pumps. BENDIX AVIATION CORPORATION. May 12, 1948, No. 13073. Convention date, May 12, 1947. [Class 102(i)] [Also in Groups XXXV and XXXVII] An electromagnetically-actuated pump, particularly for supplying a carburetter, comprises a piston 13 of magnetic material sliding in a cylinder 8 of non-magnetic material that is mounted on partitions 4, 6 in a casing 1. The piston is pressed by a spring 14 toward the discharge end of the cylinder and retracted by a solenoid 7 energized by electrical contacts 26, 37 enclosed by a partition 9. Fuel is drawn through the suction valve 17 and valve 16 in the piston and delivered to the chamber 12 that is connected to the suction chamber 5 by a pipe 41 having a valve 46 loaded by a blade spring 48 so that when running at idling speed, an excessive pressure is not developed in the chamber 12. The contact 37 is carried by a curved armature 33 of magnetic material mounted on a spring 34 and the armature is attracted to close the contacts and energize the solenoid when the piston reaches the end of its delivery stroke by a permanent magnet 38 carried by the piston. A soft iron pole piece 39 may be provided and the polarization of the magnet is similar to that of the solenoid. The first contact 26 is carried by a blade spring 30 anchored to a flexible U-shaped bracket 27 having a bowed base 31 that may be .deformed by the screw 32 to adjust the contact 26.
Patent GB-495318-A (GB)
Title: An improved method of producing highly lustrous hollow bodies from cellulose products and other plastic substances
IPC: B29C37/00
Filed: 1937-05-07
Abstract: In the production of lustrous hollow bodies from acetyl cellulose or other plastic substances such as resins by dipping a core in a solution of the substance, the core is first coated with a substance capable of being swelled and dried, and, after formation of the hollow body, is subjected to a temperature of about 35 to 45 DEG  C. in the presence of moisture so that the coating is softened and permits removal of the formed body.  The core may also be used for drying previously formed articles thereon.  In an example, a rigid core of glass or metal is coated with a solution comprising 100 gms. of gelatine, 100 gms. of saccharose, 20 gms. of glycerine, and 800 cc. of water.  The coating is dried and, after an acetyl cellulose article has been formed by immersion, the whole is placed in a water bath of the required temperature. Traces of the coating may be rinsed off the core after removal of the article.  In the composition described, the gelatine may be replaced by glue, casein, albumins, pectin, agar-agar, or vegetable gums.  The saccharose may be replaced by sugar, such as grape sugar, starch, or dextrine, and the glycerine by glycol. The core may also be of wood, plaster, rubber, synthetic resin, &c. and may be hollow having a valve to allow entry of air between the core and the article.
Patent GB-131614-A (GB)
IPC: F23D14/64
Abstract: 131,614. MacLusky, W. B. April 16, 1918. Atmospheric gas burners.-In a gas-fire or like duplex burner, the nipple is provided, in addition to the ordinary apertures of constant area, with a central aperture capable of being regulated by a needle or other valve u. The two mixing-tubes h, g communicate at the centre of the burner casing with two compartments d, e provided with burner mouth nozzles b at the centre and at the ends respectively of the top plate of the burner casing. The compartments are provided with gauzes or screens m, l for preventing lighting back, the gauzes &c. being carried, in some cases, by frames, doors, &c., so that they can be removed for cleaning.
Patent GB-131662-A (GB)
IPC: F01L3/14
Abstract: 131,662. Domestic Engineering Co., (Assignees of Kettering, C. F.). July 17, 1917, [Convention date]. Valves are cooled by the vaporization of mercury in the stem. Fig. 2 shows a beat valve having a hollow stem, and a head 25 containing a small quantity of mercury. Mercury vapour condenses in the upper part of the stem, upon which may be pro. vided cooling-fins 22. Mercury amalgam is coated on the inside of the stem. The head of the valve is preferably constructed of tungsten steel and the stem of nickel steel. To prevent oxidation, the outer surfaces of the valves are heated in a reducing-atmosphere with a. mixture containing finelydivided aluminium.
Patent GB-201281-A (GB)
Title: Improvements in railway switch or point levers
IPC: B61L5/02
Filed: 1922-05-10
Abstract: 201,281. Williams, L. W. May 10, 1922. Ground levers for one-way points have a spring- actuated rod 2 provided with an horizontal inclined arm engaged by the hand-lever which has an angular movement to the rod 2. The leavers are adapted for right or left-hand use, and have a handle which is normally either horizontal or vertical, the handle. Fig. 4, being in two parts 17, 18, connected by a hinge pin 19, while a bolt or stud 20 can be used to make the handle rigid and vertical. The operating-rod 2 has an eye at one or both ends for connection to the point-rod 9 and has welded or otherwise secured thereto an inclined arm 10 engaged by the handle 13, which may be detachable. The arm 10 may be separate from the rod 2 and engage a slot or pin in the rod.
Patent GB-826126-A (GB)
Title: Improvements in and relating to electrical insulation
Inventor: ROWLAND WALTER JOHN
IPC: H01B3/00
Filed: 1955-05-06
Abstract: 826,126. Insulated conductors. ENGLISH ELECTRIC CO. Ltd. May 7, 1956 [May 6, 1955], No. 13185/55. Class 36. [Also in Group XXXV] A conductor is insulated by applying an hydraulic cement admixed with water together with heat-resistant fibrous material to produce a covering and compacting at least part of this covering in a press whilst the cement sets. Parts of conductors of such shape as to preclude their being compacted in a press are enclosed in impervious tape until the cement has set. The cement, when hardened and dried, has a specific resistance of at least one megohm-cm. at 500‹ C. The fibrous material may be tape woven from glass, silica, aluminium silicate or asbestos and the cement may be worked into it before or during its application to the conductor. Suitable cements having a high alumina content are mentioned.
Patent GB-812170-A (GB)
Title: Improvements in or relating to machines adapted for use in assembling electrical components upon workpieces
IPC: H05K13/04
Filed: 1956-05-01
Abstract: 812,170. Assembling electric components on circuit boards. BRITISH UNITED SHOE MACHINERY CO. Ltd. May 1, 1956 [May 4, 1955], No. 13334/56. Addition to 802,658. Class 83 (2). A machine as described in the parent Specification for assembling electric leads on circuit boards has a modified anvil device comprising a number of lead-engaging elements mounted so that they can be independently orientated about the axes of the leads projecting through the holes in the circuit boards to permit the leads to be bent over in independently chosen directions. Slidably mounted in a bore of an anvil housing bracket is a cylindrical hollow piston 28 to the top of which a bearing 40 is adjustahly screwed. Mounted within the bearing and held by a clamping plate 60 is a cylindrical member 46 bored to receive a vertically slidable plunger 50 for operating a micro-switch 78 against the action of a spring 52. Segmental portions 54, 56 upstanding from the member 46 support flat-topped work-engaging pins 58. Between the segments a cap 72 is depressibly and rockably mounted by means of horizontal pins 74 passing through vertical slots 76 in the segments. The spring 52 normally lifts the plunger 50 and also, through a screw 77, the cap 72. A pair of lead-engaging elements 64, 66 each having at the top a flat portion 70 and an arcuate portion 68 are mounted in bores in the cap and are held in adjusted position by screwactuated locking members 84. Satisfactory insertion of the leads of a component 24 through holes in a workpiece so that they engage the elements 64, 66 depresses the switch 78. If only one lead is inserted, the cap tilts and the switch is not actuated. In a modification, Fig. 12, a cylindrical member 94 secured to the bearing 40 by the plate 60 has at its upper end two projections 98 secured by a screw 100 and serving to support the work and two integral projections 104 serving as shields for two leadengaging elements 102. These are normally urged upwardly by springs 110 and their limits of movement are determined by slots 108. into which projects a block 96. Depending from the elements 102 are rods carrying contacts 120 adapted to operate micro-switches 90, 92. Specification 802,659 is referred to.
Patent GB-572933-A (GB)
Title: Improvements in and relating to means for use in drying and curing plastics and the like
IPC: F26B21/00
Filed: 1943-08-17
Abstract: 572,933. Apparatus for drying and curing plastics &c. NICHOLSON, J. C. Aug. 17, 1943, No. 13356. [Class 64 (i)] Apparatus for drying and curing a plastic or rubber, &c. coated or impregnated surface by the application of a mixture of combustion gases and air, comprises a combustion and mixing chamber 2 which is mounted on a base 1, together with a fan 14 and electric, &c. motor 15 for driving same, and includes a combustion compartment 9a locating a gas or oil burner head 8, the gases of combustion being withdrawn from the compartment 9a through slots 25 in the wall thereof by the fan 14 and then passed into a central tube 11 of the chamber 2 where it is mixed with air, supplied through heated ducts 26 between the compartment 9a and a surrounding casing, and finally projected on to the surface to be treated through a flat nozzle 20 coupled to the fan outlet by a hose 21. The apparatus may be mounted on wheels, and it may be used for supplying gas to a tunnel or treating chamber, through which the surface or surfaces are traversed, in which case the nozzle is replaced by distributing means within the tunnel. In the form shown, the supply of gas to the burner is controlled by a governor 6 and a valve 7 associated with a thermostat 7a, and a lighting torch 19 is provided for insertion into the compartment 9a through a tubular opening 18a normally closed by a gauze-covered cap 18. Specification 571,600, [Group IV], is referred to.
Patent GB-1161634-A (GB)
Title: Magnetic Head Positioning and Track Indicating Device
Inventor: SUZUKI SHIGEO
IPC: G11B5/55
Filed: 1967-03-22
Abstract: 1,161,634. Multi-track tape recorders having visual indicators. S. SUZUKI. 22 March, 1967 [30 March, 1966], No. 13412/67. Heading G5R. A tape recorder 20 is loaded with a multipletrack sound-recording magnetic tape 14 and has a magnetic head 1 mounted on a support arm 2 which is vertically movable to vary the position of head 1 with respect to the multiple tracks of tape 14, a ratchet wheel 4a actuated by a driving member 5 controlled by a pushbutton 10 being provided on its lower surface with a cam 4 for adjustably moving arm 2 to place head 1 selectively at positions corresponding to the tracks, and an indicating device 6 driven by a cam 4b formed on the upper surface of the ratchet wheel 4a to indicate the track at which head 1 is positioned at any time.
Patent GB-899830-A (GB)
Title: Improvements in coating compositions and in thermoplastic polymeric films coated therewith
IPC: C08J7/052
Filed: 1960-04-14
Abstract: A coating composition comprises, as non-volatile ingredients, (i) a terpolymer of a vinyl halide, a vinyl ester of a C1-4 saturated fatty acid and 0,1 to 10% by weight of an aliphatic monoolefinic carboxylic acid (ii) a chlorinated hydrocarbon microcrystalline wax melting below 100 DEG C. over a range of less than 10 DEG  and (iii) a plasticizer for the terpolymer, with at most minor proportions of other non-volatile substances.  The vinyl halide may be the chloride or bromide and the ester the formate, acetate, propionate or butyrate.  Monoolefinic carboxylic acids specified are methacrylic, acrylic crotonic, maleic, chloro-, phenyl- and benzylmaleic, itaconic and citraconic acids and monoesters of maleic and fumaric acids. Plasticizers specified include dioctyl, dibutyl and dicyclohecyl phthalate, tricresyl, tributyl and trioctyl phosphate, di(2-ethyl-hexyl) and polypropylene glycol adipate and sebacate, methyl-acetylricinoleate, a proprietary alkyd resin, epoxidized soybean oil, butadiene-acrylonitrile copolymers and aromatic hydrocarbons.  The wax may be a chlorinated paraffin or aromatic such as naphthalene.  Optional ingredients specified are poly-N-vinyl-pyrrolidone; paraffin waxes; esters or amides of C14-18 acids; carnauba wax; stearic acid; modified castor oil; dibutyl tin thioesters; mixtures of a polyhydroxy compound and aluminium, zinc or calcium organic salts; and various terpenes.  Solvents specified are toluene, benzene and xylene and mixtures thereof with 2-methoxy-1-ethanol, ethyl acetate or isopropyl acetate.  Coated films.  The composition may be coated on to thermoplastic films by solution or extrusion coating.  Films specified are oriented polyvinyl chloride, polypropylene and polystyrene, which may be surface-treated, e.g. by chlorination.  Examples illustrate the application of the coating by both solvent and extrusion methods and the heat sealing properties of the coated films.
Patent GB-331964-A (GB)
Title: Improvements in closures for jars, bottles and like containers
IPC: B65D41/04
Filed: 1929-04-30
Abstract: 331,964. Pollak, J. E., (Closure Service Co.). April 30, 1929. Screw-cap stoppers.-Relates to screw-caps for bottles &c. of the type for use with externally threaded bottle necks and in which the gaskets have both horizontal and vertical sealing surfaces. According to the invention the top of the attaching flange 3 is of greater diameter than the screw. threads 11 of the container and the cap is of less diameter at the vertical gasket engaging wall '20.
Patent GB-1310167-A (GB)
Title: Method and device for measuring the thickness of a metal deposit  on an insulating support
IPC: G05D5/03
Filed: 1970-03-20
Abstract: 1310167 Electro-physical measurementthickness; automatic thickness control LA CELLOPHANE SA 20 March 1970 [27 March 1969] 13474/70 Heading G1N [Also in Division G3] The thickness of a conductive coating on a moving web is measured by its loading effect on the inductance of a resonant circuit (Q-factor) and is controlled by varying e.g. the speed of travel or the evaporator power in a vacuum deposition plant.  THICKNESS MEASUREMENT FIG. 1 is determined by the feedback required to maintain constant amplitude oscillation. The oscillator comprises a variable-gain amplifier A, detector coil L, series tuning capacitor C, and feedback capacitor C<SP>1</SP>. The voltage across the resonant circuit at point O is maintained constant by comparing it at E with a reference voltage (e<SP>1</SP>) and controlling the amplifier gain control R, by the error signal. The amplifier output at N to maintain constant-amplitude-oscillation is measured by a meter V, and may also be feed to a recorder, limit alarm and regulator. THICKNESS CONTROL FIG.2. Plastic film 40 is wound over rollers past the evaporator 52 of a metal coating plant, and over a drum 38 containing the sensing inductor 16. Thickness signals derived as described above are compared with a desired thickness in the regulating means 66 to control the winding speed of the film, as shown, or the evaporator power. A plurality of sensors may be arranged across the width of the film.
Patent GB-1056139-A (GB)
Title: Luggage cases
IPC: A45C5/02
Filed: 1964-04-02
Abstract: 1,056,139. Carrying handles. SAMSONITE CORPORATION. April 2, 1964 [April 10, 1963; June 20, 1963], No. 13591/64. Heading A4G. [Also in Divisions B8 and E2] The ends of the handle 93 of a luggage case formed from two moulded shells (see Division B8) are each provided with a hole through which posts 95 of a handle support 96 project, screws 100 holding the posts in contact with a handle plate 99 on the inside of a shell 91. In another embodiment (Fig. 16, not shown) a handle 10 is moulded about a reinforcing rod the ends 60 of which are pivoted in angle clips 61 which are screwed to a beam 55 which extends round the edge of the shell. In a further embodiment (Fig. 58, not shown), the handle strap 183 is moulded about metal webbing strips 184. The strap extends into a metal socket 185 fixed in a handle support 188 which in turn is fixed to the shell.
Patent GB-1499375-A (GB)
Title: Method to prevent the formation of incrustations on working electrodes in electrode steam generators or the like and a means for performing the method
IPC: F22B1/30
Filed: 1975-04-03
Abstract: 1499375 Electrode boilers GOTEBORGS ANALYSLABORATORIUM AB 3 April 1975 [5 April 1975] 13592/75 Heading F4A [Also in Divisions C7 and H5] Encrustation on working electrodes immersed in a water-containing steam generator 1, said electrodes 7 being connected to a source of A.C. R, S, T, and also to a source 9 for impressing D.C., is inhibited by intermittently changing the polarity of the superimposed D.C., the incrustations thus removed being drained off at intervals. The D.C. may be fed to an auxiliary electrode 8 as shown, by feeding a rectifier 9 from one line T and the zero line of 3-phase A.C., and using switch 10 to reverse the polarity, optionally in conjunction with a timing device 11. Feed water enters via 2, and steam leaves via 6; in use incrustation forms on electrodes 7 but fractures and falls off on reversing the D.C. current; incrustation is drained off at 4. Electrode 8 may be a rod or ring, e.g. of graphite or Au-plated Cu; other circuitry for impressing and reversing the D.C. voltage is described (Figs. 3-6, not shown).
Patent GB-571606-A (GB)
Title: Improvements in or relating to indicating and registering apparatus
IPC: G06M1/06
Filed: 1943-08-21
Abstract: 571,606. Counting-apparatus; indicating-apparatus. CHADBURN'S (LIVERPOOL), Ltd., [formerly CHADBURN'S SHIP TELEGRAPH CO., Ltd.], and PIGOTT, S. T. Aug. 21, 1943, No. 13658. [Class 106 (i)] In instruments particularly for counting the number of revolutions or movements of an engine, machine, &c., the driving element is housed or supported in a gear-box which is adjustable relatively to the indicating means so as to set said means in the most convenient position for observation. In the form shown in Figs. 1 and 2, applied to a counter of the cyclometer type, the numeral wheels 12 are mounted on a shaft 11 supported in bearings extending upwards from a base 10 attached to which is a casing 13 with a display aperture 14. The base 10 is provided with a central aperture to receive a boss 16 of a transmission gear-box 17 which is adjustably secured to the base by means of bolts 18 having conical-shaped heads 19 arranged in an annular groove 20 of dovetail section. As shown, the gear-box acts as an oil sump and houses a worm-wheel 21 on a shaft 22 connected by spur gearing 23, 25, 26, 27 and 28 and bevel gearing 29, 30 to the drive shaft 11. The worm-wheel meshes with a worm 31 on a shaft 32 that is coupled to the engine or machine. The gears 25, 26 are mounted on a swinging frame 24, one or other being effective to transmit the movement depending upon the direction of rotation of the worm-wheel 21. In a modification, Fig. 3 (not shown), the gearbox may have a bevelled flange engaged by the bevelled edge of cleats screwed to the base. In cases where the drive shaft is on an axis vertical to the plane of the base-plate, spur gearing may be substituted for the worm gear or spiral gearing may be interposed between the shaft and the worm gearing.
Patent GB-601691-A (GB)
Title: Improvements in or relating to method of sealing the stem of hollow valves
IPC: F01L3/14
Filed: 1945-05-31
Abstract: 601,691. Making poppet valves. EATON MANUFACTURING CO. May 31, 1945, No. 13673. Convention date, April 22, 1944. [Class 83 (ii)] A method. of making a hollow poppet valve comprises forming the hollow stem 14 and head 12 as shown inserting the coolant 22, welding or otherwise securing a closure member 20 over the open end of the stem, forging the enlarged upper end of the stem to form a permanent, integral seal and finally cutting and shaping the closed end.
Patent GB-1079685-A (GB)
Title: Improvements relating to a chain tensioning device
Inventor: WARD HARRY
IPC: F16H7/12
Filed: 1963-04-05
Abstract: 1,079,685. Chain terisioners. AMF INTERNATIONAL Ltd. March 31, 1964 [April 5, 1963], No. 13705/63. Heading F2Q. A chain tensioning device comprises an arm 14 pivoted on a pin 16 and carrying a roller 36 which is urged into engagement with a chain 2 by a slider bar 20 carrying pivoted end shoes 32 which are adapted to slide on roughened surfaces 34, 35 provided on the arm 14 and an adjustably fixed arm 8 respectively. The weight of the bar 20 provides the tensioning force. A resilient mounting bracket 12 at the lower end of the arm 8 allows the latter to move slightly in response to phases of slackness and tightness of the chain. The tension may be released by supporting the slider bar 20 on a pin 28 which may be put in any one of a number of holes 30 in the arm 8. In a horizontal arrangement, a spring 76 acts to bias a slider bar 20a.
Patent GB-254072-A (GB)
Title: An improved hat or cap for motoring or for general use
IPC: A42B1/04
Filed: 1925-05-26
Abstract: 254,072. Sayer, B. May 26, 1025. Women's hats; caps. - Relates to close-fitting hats or caps for motoring or general use, and consists in the provision of a head-band of reduced circumference at its lower edge than at its upper part, the head-band being divided so that it can be opened to facilitate the putting on of the head covering, and then the divided parts can be secured together, so that the hat fits closely under the bulge at the back of the head. Pins, wire clips, press buttons C, or hooks and eyes D may be used for connecting the ends of the head-band.
Patent GB-578070-A (GB)
Title: Improvements in or relating to electric resistances
IPC: H01C7/00
Filed: 1944-07-19
Abstract: 578,070. Resistance coatings and deposits. JOHNSON, A. H., and CLARKE, A. G. July 19, 1944, No. 13772. [Class 37] An electric resistance comprises a tubular insulating carrier having on its inner surface a " cracked-on " carbon layer forming the resistive element, suitable sealing of the ends serving to protect the carbon layer from atmospheric conditions. The carrier comprises a cylindrical ceramic tube the open ends being sealed before or after attaching suitable connecting wires such as by the forced fitting, into the open ends, of conducting plugs to which are attached connecting wires. Alternatively the ends of the tube may be metallized to contact the carbon layer and connecting wires soldered to the metallized layers so as to seal the ends of the tube. By dipping the ends into a suspension of graphite in water a layer of graphite contacting the carbon layer and extending to the exterior of the tubes at the ends is obtained and suitable conducting end caps may be fitted. The tubular carrier may have an internal diameter as small as three-hundredths of an inch ; when larger tubes are used, a helical cut may be made in the carbon layer. Specification 318,947, [Class 37], is referred to.