baber/WOPTO huggingface dataset:
Patent AT-A87099-A (AT)
Inventor: KORB WILHELM
IPC: H02M7/12
Filed: 1999-05-17
Abstract: The invention relates to an apparatus for initial charging of the output capacitors of a three-phase three-point pulsed rectifier system. According to the invention, a thyristor is arranged in each phase between the input terminal and is connected in the current flow direction to the anode of the freewheeling diode, and an initial charging path is connected in parallel with this thyristor. The circuit for actuating the thyristor is activated after completion of the initial charging; the reference voltage is applied to the negative input of the comparator. When the potential profile which is present at the tap of the voltage divider at the input of the bridge path rises, the voltage at the positive comparator input slightly before the zero crossing of the mains voltage to positive values exceeds the reference voltage, thus initiating switching of the comparator output and/or actuation of the thyristor and, after the mean bridge branch input potential passes through zero, the actuation of the thyristor is suppressed once again. The thyristor is thus triggered only within that mains voltage half-cycle in which it is required for carrying the mains phase current.
Patent DK-13586-A (DK)
Inventor: GAUSELMANN PAUL
IPC: G09F11/06
Filed: 1986-01-13
Abstract: A rotary flap display system has a large number of indicia bearing flaps mounted on a motor driven hub within a housing. The housing has a lug along the upper edge of an opening through which the flaps may be seen for restraining the flap to flip forward one at a time. The lug includes a hole through which a jet of air emerges to assist flipping of each flap as it passes the lug.
Patent DK-13885-A (DK)
Inventor: WERMUTH CAMILLE GEORGES
IPC: C07D237/20
Filed: 1985-01-11
Abstract: 3-[2-(3-Oxo-4-morpholinyl)ethylamino]-4-methyl-6- phenylpyridazine derivatives of the formula <IMAGE> in which R is H or OH, or pharmaceutically acceptable acid addition salts thereof, are prepared in a known manner. The compounds (I) act on the central nervous system.
Patent GB-469883-A (GB)
Title: Improvements in and relating to rotary piston machines
IPC: F01B13/06
Filed: 1936-01-02
Abstract: 469,883. Rotary-piston engines and pumps. DREHKOLBEN - KRAFTMASCHINEN GES. Jan. 2,1936, No. 206. Convention date, Sept. 2, 1935. [Class 7 (ii)] [Also in Groups XXVI and XXVIII] A revolving piston pump, internal - combustion engine &c., comprises rectangular pistons reciprocating in working chambers formed between triangular prisms 7 supported in end-plates 6. Each piston is connected bv at least two links 13 to a stationary crank-pin 9 attached to a shaft, one end, 10 of which is fixed in the frame, and the other end journalled in the revolving shaft 12. The pistons are formed with lugs supporting pins 16, or with cylindrically bored lugs receiving the rounded ends of the links 13. According to the Specification as open to inspection under Sect. 91, air compressed by some of the pistons is discharged into a chamber into which fuel is injected ; the products of combustion pass through an opening in a partition and from the other part of the chamber expand against the pistons in the remaining chambers. This subject-matter does not appear in the Specification as accepted.
Patent GB-620078-A (GB)
Title: Improvements in the mounting of brake grips on handle bars
IPC: B62L3/02
Filed: 1947-01-03
Abstract: 620,078. Brakes. LAUZIER, .C. L. A. Jan..3, 1947, No. 213. Convention date, April 17, 1945. [Class 136 (i)] A member a for mounting a brake grip c on a handle bar is cast in one piece and comprises two lugs band an incomplete ring d. A screw g holds the member in position.
Patent GB-370435-A (GB)
Title: Improvements in processes for the manufacture of fire bricks or other fire resistantarticles
IPC: C04B33/02
Filed: 1931-01-03
Abstract: Relates to fire-bricks and other refractory articles made from refractory grains and a bonding agent.  According to the invention, grains of substantially the same size form more than half of the body mixture, fine and very fine grains are present in such quantities that they substantially fill the spaces between the larger grains without forcing these grains apart, and the remaining small spaces are filled with very finely divided binding material or with a mixture of binding material and very finely divided refractory material.  Pieces or splinters of larger dimensions than the grains may also be added.  The grains may be chamotte, corundum, chromate, magnesite, quartzite, &c.  Fluxes and mineralizors, e.g. phosphoric acid, boric acid, hydrochloric acid, tungstic acid, and salts or bases, may also be added.  The incorporation of the finest constituents of the mixture may be effected by dispersing them in a gas or in water.  In an example, a composition comprises 60 parts by weight of chamotte of grain size from 5 to 7 mm., 10 parts of chamotte size 1-2 mm., and 30 parts chamotte size 0,1-0,2 mm.  The grams are intimately mixed and a binding agent in finely divided form is added with further mixing, water being sprayed in simultaneously or separately.  The Specification as open to inspection under Sect. 91 (3) (a) comprises also a process in which ceramic or like bodies are formed by incorporating into a foundation material additional materials in finely divided form and by step-wise addition.  The additional materials may be introduced into the mixer in the form of a cloud or mist.  This subject-matter does not appear in the Specification as accepted.
Patent GB-667586-A (GB)
Title: Improvements relating to electric hand irons
IPC: D06F75/26
Filed: 1950-01-05
Abstract: 667,586. Thermal switches. HOOVER, Ltd. Jan. 5, 1950. [Jan. 6, 1949] No. 284/50. Class 38 (v). A thermal switch in an electric iron, in which a heating element 3 is in heat-exchange relationship with the sole plate 1, includes a heat conductor 14, of higher thermal conductivity than the sole plate 1 extending from the region of the element 3 to the region of the temperature-responsive element, e.g. a bimetal strip 12, of a thermostat which is in heatexchange relationship with another part of the sole plate 1. The heat conductor 14 may be cast in the sole plate 1, which may be of aluminium alloy, to embrace at 15 the circumference of the element 3, and may overlie the sole plate at the central part 16, 20 of the conductor where it is adjacent the bimetal 12. The bimetal 12 acts on flexion to separate two spring blades 10, 11, the lower blade 11 of which is adjustable by a shaft 9. The conductor 14 which may be of copper, may have an insulating, e.g. sulphide, coating on its surface.
Patent GB-195744-A (GB)
Title: Improvements in fire extinguishers and like containers for fluids under pressure
IPC: A62C13/00
Filed: 1922-01-04
Abstract: 195,744. Wilcox, R. H. Jan. 4, 1922. Storing under pressure. -The container or body of a fire-extinguisher or like receptacle for holding fluids under pressure has its side wall a formed of a single piece of sheet metal bent into cylindrical shape, the abutting edges e being bent inwards at rightangles and then welded together, and the convex ends b, c are formed with flanges d, which are indented to receive the end portions of the inwardlybent edges e and are welded to the wall a. An apertured member l for a discharge valve m or other fitting has a reduced end portion engaging a seat formed in the end c by marginally indenting an opening l<1> therein, the fitting being secured by welding.
Patent GB-535868-A (GB)
Title: Vulcanizer for rubber or the like
IPC: B29C35/00
Filed: 1940-01-05
Abstract: 535,868. Rubber vulcanizing apparatus. WALLACE, A. L. Jan. 5, 1940, No. 333. [Class 87 (ii)] A continuous hose or belt 1 is drawn by rollers 4 continuously through an electricallyheated vulcanizing cylinder 3 whilst compressed by a strip 24 of steel or fabric &c. continuously wound about the belt &c. 1 and endless longitudinal strips 23 guided as illustrated through the. cylinder 3 which is supported by camreciprocated plungers permitting the strip to be wound. The windings of the heating coil are, e.g. mica-insulated, and current is supplied through conducting rings 11 &c., to permit the outer course of the wound strip 24 in its guide 28<SP>1</SP> to rotate about the cylinder 3 &c. Specification 504,250 is referred to.
Patent GB-283523-A (GB)
IPC: F16H29/04
Filed: 1928-01-05
Abstract: 283,523. Zahnradfabrik Akt.-Ges. Jan. 12, 1927, [Convention date]. Variable-speed ratchet gearing suitable for vehicles is circumferentially arranged and is controlled by the axial sliding of a coned cam c which is feathered on the driving-shaft f<2> Figs. 1 and 2, to which flywheels d is secured. Planetary gears a<10> are carried by a casing e rigid with a driven shaft f<3>, and mesh with a sun gear f<1>, which is kept from turning backwards by a detent c<4>. The gears a<10> are driven in one direction through ratchet clutches a' by levers a<1>, which are held against the multiple cam c by springs such as a<5>. The cam c which oscillates the levers a<1> is coned so that as it slides, the amplitude of the levers a<1> and thus the speed transmitted are varied. The speed may be controlled automatically by a governor i acting on the cam. When the load falls sufficiently, the gearing turns solid by overrunning at the detent c<4>. Manual control mav be effected alternatively through a lever l<2> and rod l<3>. Suitable reversing- gea.ring is shown at g'. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the arrangement shown in Fig. 4 (Cancelled) in which the casing e, which carries the gears a<10>, is fast to the driving fly-wheel d. The cam c is feathered upon the driven shaft f<2>, to which the sun gear f<1> is also secured. Ratchet clutches a<7> are arranged between the gears a<10> and levers a<1>, which are held against the multiple cam c by springs. Under load, the gears a<10> roll on the sun gear f<1>, and the levers a<1>, being drawn round over the cam c, are oscillated, controlling the relative rolling or escapement. The cam c is coned so that by axially sliding it can control the speed transmitted. There is no detent like c<4>, Fig. 2. There is a governor i and a manual control l<2>. This subject-matter does not appear in the Specification as accepted.
Patent GB-1161962-A (GB)
Title: A Discharge Fitting for a Flushing Tank
IPC: E03D1/14
Filed: 1968-01-03
Abstract: 1,161,962. Valves. H. GEBERT and K. GEBERT, [trading as GEBERT & CIE]. 3 Jan., 1968 [4 Jan., 1967], No. 504/68. Heading F2V. A discharge fitting for a flushing tank 5 has a housing 1 surrounding a float chamber 22 containing a float 21 adapted, when water is present in the float chamber, to abut a member 30 mounted on a valve stem 12 slidably extending coaxially through the float chamber and the float, the valve stem carrying a discharge valve 13 and the floor of the float chamber being provided with at least one opening 29 whereby the float acts to maintain the discharge valve open after upwards movement of the valve stem until water in the float chamber has been discharged through the opening in its floor. A forked member (not shown) engages bores 18 to lift the stem which has openings 19 to provide an overflow from the tank. Some of the openings 29 may be plugged or an opening of adjustable cross-section may be provided to enable the discharge time of the tank to be varied. The valve 13 is of thick rubber adhesively secured between rings 14 and 15.
Patent GB-748493-A (GB)
Title: Improvements in or relating to peripheral retaining bands for securing lids to containers
IPC: B65D45/34
Filed: 1953-01-07
Abstract: 748,493. Band clips. JESSOP, W., and DRUMS, Ltd. Jan. 4,1954 [Jan. 7, 1953], No. 521/53. Class 44. [Also in Group XVII] A container lid K is secured by a U-section band having a semi-circular portion A and quarter arc portions B, C pivoted thereon by pins E and pivotally connected to the lid by rivets F, the ends of the band being connected by a clip G. A seal may be passed through holes in the clip G and a bracket H.
Patent GB-577103-A (GB)
Title: Process for the continuous esterification of regenerated cellulose and the like
IPC: C08B3/00
Filed: 1943-01-12
Abstract: Filaments, films and other shaped materials made of regenerated cellulose or precipitated cellulose derivatives containing reactive hydroxyl groups are subjected to a continuous esterification treatment in which a catalyst and then a liquid esterifying agent comprising an organic acid anhydride are applied to the material, and the material while charged with these substances is subjected for a short time to the action of a hot gas which is in motion.  The treatment is conducted so that the structure of the material is retained.  The hot gas may be kept in circulation in a closed vessel so that the esterification is effected in an atmosphere of gas which is saturated with the esterifying agent.  The temperature of the air or other gas may be maintained at 100 DEG  C. or higher, and the material undergoing esterification may be treated for a period of less than 30 minutes.  The catalyst may be sodium, potassium, or lithium acetate, or zinc chloride.  When the catalyst is applied in a solution in water or other solvent containing hydroxyl groups, the solvent must be removed before the esterification by drying or by displacement with another liquid.  Acetic, propionic, butyric or a mixed anhydride may be used as esterifying agent.  It may be used in undiluted form or in solution.  Threads, films, spun yarn, woven fabrics or knitted goods, or staple fibre may be treated. Non-continuous material such as staple fibre flock must be transported through the continuously operating apparatus by means of a conveyer band or similar device.  In an example, a sliver of viscose filaments is passed through a solution of potassium acetate and then dried.  It is passed through liquid acetic anhydride and then between adjustable squeezing rollers.  The sliver is fed into a closed apparatus and advanced by a series of pairs of driven rollers. Hot air is circulated through one part of the apparatus by means of a fan, the esterification taking place mainly in this part of the apparatus.  In another part of the apparatus a separate stream of circulating air contacts the travelling sliver.  This air removes the excess of acetic anhydride still contained in the sliver and passes to a cooling device where the anhydride is condensed.  The cooled air is re-heated and then driven back to the sliver by means of a fan. The sliver passes from the esterification apparatus to a series of washing tanks.  If butyric anhydride is used as esterifying agent, the reaction may be accelerated by the addition of pyridine. Specifications 353,978, 379,658, 380,822, 405,884, 419,918 and 467,361 are referred to.
Patent GB-687895-A (GB)
Title: Stoppers and containers associated therewith
IPC: B65D55/16
Filed: 1951-01-09
Abstract: 687,895. Stoppers. IBBETSON, M. J., and IBBETSON, H. Nov. 26, 1951 [Jan. 9, 1951], No. 598/51. Addition to 655,202. Class 125(iii) The container and gravity operated stopper described in the . parent Specification is modified in that the inner end of the stopper 1, of resilient material, is provided with radially-extending arms 3 adapted to yield to permit the inner end of the stopper to be pushed through the discharge neck of the container but prevent detachment of the stopper from the container. The resilient material may be rubber or polyvinyl chloride.
Patent GB-972211-A (GB)
Title: Photographic emulsions containing thiosulphonic acid derivatives
IPC: G03C1/34
Filed: 1961-01-06
Abstract: Compounds of the general formula R-SO2. S-R1 wherein R is an alkyl or aryl group and R1 is an alkyl group or the group -R2-S.SO2-R where R2 is an alkylene group, are prepared by condensing an alkali metal organic thiosulphonate with an alkane substituted by one or two halogen atoms. Examples are given of the condensation of sodium p-toluene thiosulphonate with 1,2-dibromoethane, 1,3-dibromopropane or 1,10-dibromodecane by refluxing the reactants in alcohol. Specifications 542, 703, 614,155, 635,841, 646,712, 670,478, 702,200, 702,255, 703,231, 706,921, 711,488, 736,288, 809,240, 841,136, 853,478, 853,480, 868,241, 868,243, 904,364 and 932,272 are referred to.
Patent GB-196035-A (GB)
Title: Improvements in or relating to atmospheric gas burners
IPC: F23D14/10
Filed: 1922-01-09
Abstract: 196,035. Larkin, F. S., and Galbraith, W. L. Jan. 9, 1922. Atmospheric gas burners; burners, mounting.-An atmospheric gas-grill burner comprises a burner tube a, provided with nozzles h, and an inner tube b, provided wnth openings g out of alignment with the nozzles h and secured in position by a set-screw k passing through a reduced end a<1> of the burner tube a. A gas nipple e is carried by a fitting d, provided with an air-inlet f or inlets, the end i of the burner tube a being joined by means of mastic cement, red lead, or other material or by screwing to an enlargement j on the end of the tube b. The burner is adapted to be rotatably mounted on bearings formed by the reduced end a<1> and a portion e<1> of the nipple. In a modification, the tube b may be provided with a row of openings at the top and bottom, and the burner tube a with a row of nozzles on each side slightly below the centre line.
Patent GB-141412-A (GB)
Title: Process of vulcanising natural and artificial caoutchouc and caoutchouc-like substances
IPC: C08K5/00
Filed: 1919-01-10
Abstract: 141,412. Gaisman, L., and Rosenbaum, J. L. Jan. 10, 1919. Vulcanizing-materials; india-rubber, colouring- -The colour bases of the basic synthetic organic dyes are mixed with natural or artificial caoutchouc or caoutchouc-like substances and sulphur, and the product is vulcanized under heat. These colour bases act either as accelerators or as colouring-agents, or both. In an example, 57 parts of rubber are mixed with 40 parts of zinc oxide, 3 parts of sulphur, and 1 part of the colour base of the basic dye auramine-O. Other dyes mentioned, of which the colour bases are used, are methyl violet B, methylene blue, Bismarck brown, magneta, rhodamine B, benzoflavine, safranine, Meldola's blue, thionine blue, thioflavine T. Specification 12661/14 is referred to.
Patent GB-1083131-A (GB)
Title: Fixing devices
IPC: E04C2/20
Filed: 1963-01-08
Abstract: 1,083,131. Suspended ceilings. T. FLINTOFT. March 16, 1964 [Jan. 8, 1963; Feb. 28, 1963], Nos. 818/63 and 8003/63. Heading E1W. [Also in Division F2] A nail or staple for use in securing expanded or foam plastics sheet material or plaster board to joists and having a self burying action comprises at least one shank and at least one cross piece 2 of thin blade form, disposed at a distance from the driven end of the nail. The shank comprises a thin leading part 20 to enter a joist followed by a thicker rear shank part 21 which serves as a distance piece to prevent compression of the foam sheet material. The thicker shank portion 21 may be provided at the head end with external or internal threads for the mounting fittings. In a modification, the shank (Fig. 14) consists of two parts (24, 25) secured together end to end as by screw thread engagement, the anchorage end of the part (25) being of hook form (29) for removable suspension of the plastics sheeting (10) on support rails (30). In another modification a distance piece in the form of a sleeve is temporarily secured to the shank near the pointed end (7) the connection being broken when the sleeve abuts a member such as a joist (11) (Fig. 15) on the shank being driven therein. In another modification the head of the nail is provided with a cartridge (33) (Fig. 18).
Patent GB-329316-A (GB)
Title: Improvements in or relating to apparatus for heating fluids
IPC: F23M5/08
Filed: 1929-01-09
Abstract: 329,316. Carborundum Co., Ltd., (Car borundum Co.). Jan. 9, 1929. Water-tube boilers. - A boiler comprises a vertical combustion chamber 7 composed principally of non-metallic refractory material of high thermal conductivity and heat radiating capacity at high temperatures, such as silicon carbide, burners B within the combustion chamber, and vertical tubes 15a - - 18a surrounding and extending above it, the lower portions of the tubes being thus screened from the flame whilst the upper parts are heated by contact with the gases of combustion. The boiler shown in Figs. 1 and 1<a>, of which the former represents the upper and the latter the lower part, comprises a base 3 of magnesite or other refractory material with a downward extension 4 containing the ash-pit. Supported on the base 3 are the combustion chamber 7 and an outer casing 5, the latter being of material of low thermal conductivity. A water and steam drum 10 is connected by pipes 11 - - 14 with lower headers 15 - 18 from which the tubes 15<a> - - 18a extend; the upper ends of the tubes 15a are connected to the drum 10, those of the remaining tubes being connected to three headers, two of which, viz. 17b and 18b, are shown in Fig. 1. The header 17b and drum 10 are connected by upper and lower cross tubes 19, 19a and the remaining two headers are also connected to the drum 10 by short connections, external to the casing 5. Steam superheater coils 22 connect the headers 20, 23, the former of which is connected to the drum 10, and the latter to the delivery pipe. Combustion products may be withdrawn from the stack by a blower and supplied to the spaces containing the vertical boiler tubes to avoid oxidation. The circulation of water from the drum 10 to the lower headers, 15 - 18 may be aided by a pump. In modifications, two opposite walls only of the combustion chamber are of silicon carbide, the other two being formed by exposed vertical boiler tubes which are provided with vertical fins completing the wall by bridging the spaces between them, or the other two walls are formed by facings of refractory material with a metal backing clamped to the tubes.
Patent GB-967363-A (GB)
Title: Improvements in or relating to a fixed contact device for electric clocks
IPC: G04C3/06
Filed: 1961-01-09
Abstract: 967,363. Electromagnetic interrupters; switch contacts. UNITED STATES TIME CORPORATION. Jan. 9, 1961 [Jan. 9, 1960], No. 903/61. Heading H2B. [Also in Division G3] A fixed switch contact comprises an elongated spring member mounted at one end at a point remote from a rotating contact member, the other end of the spring member being contactable periodically by the rotating contact member, the spring member being of hairpin shape having an arcuate portion joining two legs of unequal length and having a ring-shaped damping member loosely surrounding one of the legs at a point intermediate its ends. As shown, the contact is used in the switch of an electric clock or watch and comprises a spring 43 mounted at 49 and having a damping ring 48. The end of the member 43 may be of curved crosssection and may co-operate with a cylindrical contact 26 so as to give a point contact. Contact 26 is carried by a balance wheel body 20 having a coil 25 coacting with alternately polarized permanent magnets 40. An insulating pin 32 movable with contact 26 engages spring 43 first so that oscillations due to the initial impact will die down before the contacts engage.
Patent GB-493932-A (GB)
Title: Method and device for handling reversible films
IPC: G03C5/50
Filed: 1937-01-12
Abstract: 493,932. Photo electric control of photographic exposures. DEBRIE, A. L. V. C. Jan. 12, 1937, No. 957. Void. Convention date, Jan. 13, 1936. [Class 40 (iii)] [Also in Group XX] The second exposure in the treatment of reversible photographic films is controlled by a system comprising two photo-electric cells of the barrier type in opposed series and connected in parallel with an' ammeter and a galvanometer. To measure the exposure time, the film F is drawn from a roll 19 to a roll 20 past a lamp 2 illuminating the film through a yellow filter. The light passing through the film varies as the density thereof and falls on a cell 3 in series with a cell 4 also illuminated by the lamp, and the net photo - current affects the galvanometer 6 having a rotating mirror 9 to direct the exposing illumination from a source 7 on to the film at the gate 11. A wedge-form shutter 14 causes the exposure illumination to vary in intensity as the mirror rotates.