baber/WOPTO huggingface dataset:
Patent GB-964986-A (GB)
Title: Improvements in or relating to electrical inductor alternators and generating arrangements fitted therewith
IPC: H02K19/20
Filed: 1961-05-19
Abstract: 964,986. Automatic voltage control. L'ECLAIRAGE DES VEHICULES SUR RAIL. May 19, 1961 [June 15, 1960], No. 18425/61. Heading G3R. [Also in Division H2] An inductor alternator has rotor teeth which are parallel with the rotor axis and which have a cavity or the like extending along the length of their sides to reduce the field in the gaps between the teeth. In Fig. 4 the stator has a D.C. field winding 14 and an A.C. output winding (not shown) located in slots 6. The rotor has teeth with the sides shaped as at 10 to reduce the field in the gaps between the teeth. The stator teeth are preferably wider than the gaps between them and a further winding 12 is provided which is shorted by a rectifier 13 for that polarity of the current induced by the rotary field which aids the D.C. field. The main field winding may also serve this purpose in Fig. 5. The automatic control of the output of the generator 15 may be effected as shown in Fig. 5. A voltage from one phase of the output is applied from points 25 and 26 through a rectifier system 21, 22, 23, 24 and a magnetic control circuit to the field winding 20. Windings 29 of the magnetic control circuit are controlled through a transistor circuit 30 by the output-voltage of the output rectifier system 16 while a further winding 31 is controlled by the rectified output current passing through 33 to a battery 19 "floated" across the output circuit. A rectifier 32 prevents control current flowing in winding 31 until a substantial voltage is developed across 33. A transformer may be included in the field winding circuit (Fig. 6, not shown).
Patent GB-1096838-A (GB)
Title: Tubular conveyor belt
IPC: B65G15/40
Filed: 1966-04-27
Abstract: 1,096,838. Endless tubular conveyer belts. G. GRIMM. April 27, 1966, No. 18465/66. Heading B8A.  An endless tubular conveyer belt of the type driven through its edges, has reinforcing rods 3, 31 embedded in the edges 2, 2<SP>1</SP> and transverse corrugations 13 extending between the reinforced areas, the region where the crests 14 and the troughs 15 of the corrugations 13 merge is substantially perpendicular to the neutral bending axis 16 of the belt. The radius of curvature of the troughs 15 is larger than the radius of curvature of the crests 14.
Patent GB-730934-A (GB)
Title: Regenerative heat exchanger with reciprocable rods
IPC: F28D19/00
Filed: 1953-07-03
Abstract: 730,934. Thermal regenerators. AIR PREHEATER CORPORATION. July 3, 1953 [July 16, 1952], No. 18469/53. Class 64 (1). In a heat-exchanger, parallel rods 14 extending transversely through parallel passages 10, 12 for hot and cold gases are connected at their ends to yokes or plates 16, 18 which are actuated to pull the rods in opposite directions alternately, so that the rods are reciprocated and parts are moved from hot to cool passages and vice versa. The rods at the end of a stroke project beyond the passage wall 11 or 13 at one end by an amount greater than the length of the stroke. The plates 16, 18 and the ends of the rods 14 are contained in end chambers 24, 26. Conduits 25, 34 extend between the chambers 24, 26 and open into hot gas passages 10 through ports 32, 36. Valves such as 35 move with the plates 16, 18 to open and close the outlets from the chambers 24, 26 to the conduit 34, so that hot gas can flow into the end chamber when the rods project into it. One of the walls between two passages 10, 12 may comprise two parallel walls the space between which is filled with a granular refractory or abrasive packing to clean the rods during reciprocation.
Patent GB-227874-A (GB)
Title: Improvements in or relating to the manufacture of medical preparations containing arsenic
IPC: A61K31/285
Filed: 1923-07-18
Abstract: Medical preparations are produced from compounds containing arsenic and oxygen directly linked together by their being physically bound to 4 : 41-dioxy-3 : 31-diaminoarsenobenzene hydrochloride or to sodium 4 : 41 - dioxy - 3 : 31 - diaminoarsenobenzene-N-methylene-sulphinate acting as a protective colloid.  In examples an aqueous solution of p-oxy-m-aminophenylarsenious oxide is added to an acidulated methyl alcohol solution of the dioxydiaminoarsenobenzene hydrochloride, the solution precipitated by ether, and the precipitate purified by solution in methyl alcohol and re-precipitation by ether; a methyl alcohol solution of the hydrochloride is oxidized by air and optionally with nitric acid and the solution precipitated by ether; an alkaline solution of the hydrochloride is exposed to the air and the free base precipitated by dilute hydrochloric acid, separated and treated with hypochlorous acid and alcohol, the solution being finally precipitated by ether as before; sodium dioxydiaminoarsenobenzene - N - methylene-sulphinate is added to an aqueous solution of arsenious anhydride and the product may be purified by pouring into methyl alcohol, the precipitate filtered, washed with alcohol and ether and dried: the N-methylene-sulphinate is allowed to stand in an open vessel in the dark and the product precipitated by alcohol and dried.  The preparations described above are all soluble in water.
Patent GB-1362166-A (GB)
Title: Electrographic sensor for determining planar coordinates
IPC: G06F3/045
Filed: 1973-04-17
Abstract: 1362166 Measuring co-ordinates electrically ELOGRAPHICS Inc 17 April 1973 [17 April 1972] 18578/73 Heading G1N Apparatus for determining the x, y co-ordinates of a selected point e.g. on a plotted curve, comprises a resistive sheet 10 (Fig. 1) located beneath the paper carrying the curve, supplied with a D. C. voltage alternately in the X and Y directions, between electrodes 11, 12 located parallel to the edges, a probe 36 making contact with the sheet 10 at the selected point P to supply voltage signals representing the x and y distances. The contacts 11, 12 along each edge are interconnected by resistors 13, 14 and spaced at a desired distance from the edge of the resistive sheet 10 so that the equipotential lines are parallel to the axes. Switches 19, 22 and 25, 28 which may be reed switches or electronic, are operated alternately in pairs by an oscillator. The resistive sheet may be covered by an insulating layer, the probe forcing contact between the sheet and an upper or lower contact plate.
Patent GB-185845-A (GB)
Abstract: 185,845. Goode, H. June 13, 1921. Spring surfaces for chairs, settees, &c. The ordinary coiled springs 2 are supported by adjustable rigid members 3 carried by threaded pins 7 mounted in brackets 9 on the framework 4. In the modincation shown in Fig. 3, the rigid member 3 is pivoted at 16, 17 to the framework 4, other parts thereof being adjustably supported by pins 7. The tension of the springs 2 and of the covering 10 can be adjusted by adjusting the member 3, and the springs 2 can be easily renewed or replaced by removing the member 3.
Patent GB-400353-A (GB)
Title: Improvements in and relating to cartons or like containers for liquids, powders or the like
IPC: B31B17/00
Filed: 1932-07-01
Abstract: 400,353. Paper cartons. WOOD, D., 73, Windsor Avenue, Hillingdon, Middlesex. July 1, 1932, No. 18635. [Classes 18, 66, and 125 (ii).] A frusto-conical or conoidal carton a of paper or like material has an internal step or flange upon which an ordinary cardboard sealing disc may be seated formed by fitting a mandrel b inside the carton body to extend nearly to the mouth of the carton, the rim of which is then curled over inwardly on to the end b<1> of the mandrel to form a hollow beading d which is then pressed against the end of the mandrel to provide a step g with a smooth bore g<1> above it. The rim of the carton may be curled over by one or more grooved rollers c<1> mounted on an arm c<2>, and the seating g is preferably formed by pressing a radially extending disc e down upon the beading d, although one or more smoothing rollers mounted upon a rotary spider may be employed. To secure the bottom of the carton in position the body is set in a sheath h with its rim projecting above the edge of the sheath. A bottom piece with a peripheral skirt is provided by forcing a disc of paper i through a ring die and into the end of the carton, the diameter of the punch being such that the carton body is given an outward step and its end is made substantially cylindrical. A grooved roller e then curls over'the flanges of the carton body and the bottom member on to the disc portion of the bottom member to form a bead a which is also squeezed radially by rollers m, m<1> mounted on pivoted levers m<2>. The closure disc which is inserted into the top end after filling is held in place by turning over the top part of the cylindrical portion g<1> on to the top of the disc. The carton may be proofed by treatment with wax or similar material.
Patent GB-388982-A (GB)
Title: An improved burner cutting machine
IPC: B23K7/00
Filed: 1932-07-01
Abstract: 388,982. Dividing by fusion. REDDEWIG, G., Scheydgasse, Vienna. July 1, 1932, No. 18694. Convention date, Jan. 28. [Class 83 (iv).] In a burner cutting-machine of the type in which the burner and the guiding or feed device, which is preferably motordriven, are mounted at opposite ends of a transverse carriage or slide movable on a longitudinal carriage, the movement of the burner may be controlled from either end of the transverse carriage at will. The machine, which can be lifted off the guide rail 2 without dismantling any of the parts, comprises a longitudinal carriage 1 in which is transversely movable an arm 4, carrying at one end the burner 5 and at the other end a feed device 7 driven by an electric motor 6 and co-operating either with a template or with a drawing on the table 8. When operating with a drawing or with a line scratched or drawn on the work, a handsteered wheel 15 is mounted on the feed device. The angular position of the wheel is controlled by a shaft journalled in the arm 4 and connected by worm or helical gearing of equal transmission ratio to the feed device and also to a hand-wheel 9 in the vicinity of the burner, so as to adjust the position of the roller from the burner side when cutting according to a line cut on the work. The other end of the control shaft carries a hand-wheel so that the angle may be controlled from the vicinity of the feed device when cutting according to a drawing. The height of the burner may also he controlled from either position by a rotatable shaft 18 carrying hand-wheels 19, 20 and connected to the burner by a bell-crank lever 17. The burner valve can be closed from the feed device side by a lever 21 through a cable 22 of the kind sold under the registered Trade Mark " Bowden," and the velocity of feed is adjusted by regulating the speed of the motor.
Patent GB-876322-A (GB)
Title: Improvements relating to operating circuits for electromagnetic relays and such likeelectromagnetically operable devices
Inventor: WARMAN BLOOMFIELD JAMES
IPC: H03K3/26
Filed: 1957-06-13
Abstract: 876,322. Valve and transistor relay circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 28, 1958 [June 13,1957], No. 18699/57. Class 40(6) In a pulse responsive electromagnetic relay or like circuit of the type comprising an electronic device such as a valve or transistor having one winding of an electromagnetic device in its output circuit, a further winding is connected to the input circuit to provide regenerative feedback to increase the effective length of input pulses and the electromagnetic device is provided with a holding contact which operates by changing the bias on the electronic device. In Fig. 1 an input pulse p1 causes the core F to saturate and a pulse to be induced in winding FW1 which renders a transistor T conducting. A relay connected in the collector circuit has a regenerative feedback winding RW2 connected in the input circuit so as to prolong the input pulse for a sufficient length of time for the relay to operate and the relay is held operated by its contacts RCa which replace a positive bias on the base by a negative bias. A second pulse p2 will then cause the relay to release and the initial bias condition to be restored. If the potentials -B and +B are suitably chosen one or other of the contacts RCa may be omitted (Figs. 2 and 3 not shown). In Fig. 4 the input pulses are applied to the relay through a third winding R<SP>1</SP> W3 from a gate circuit G, the relay being held by contact R<SP>1</SP>Cd and released by subsequent operation of contact Rel. The input to the gate comprises a priming pulse at terminal g and a pulse from one of the cathodes of a multi-cathode valve D. It is suggested that additional core circuits such as FW1, 2, 3 could be included in the input circuit of the transistor.
Patent GB-861041-A (GB)
Title: Improvements relating to agricultural machines
IPC: F16C1/20
Filed: 1956-06-16
Abstract: 861,041. Hedgecutters. WARE, P. G. June 17, 1957 [June 16, 1956], No. 18723/56. Classes 6(1) and 6(2). The cutters 42 of a hedgetrimmer are reciprocated by means of a member 27c connected by flexible power transmission means with a reciprocable transmitter member 27 driven by a mobile power source such as a motorised agricultural machine 10. As shown, the member 27 slides in a guide 20 and is connected by a member 29a to a shaft 14 that is reciprocated by means of an engine 12. The member 27 is connected to a flexible cable 32 enclosed in an outer tubular member 22 is connected to the member 27c. In a modification, the member 27c is replaced by a shaft provided with a split collar and clamping screw for the ready attachment of interchangeable tools. The flexible cable may be replaced by a column of hydraulic fluid and the power source may be a trolley mounted engine unit and an engine unit mounted in a frame having a harness so that it can be carried on the back of an operator. Specification 774,588 is referred to.
Patent GB-838010-A (GB)
Title: Improvements in or relating to electro-magnetically actuated switching relays
IPC: H02J7/22
Filed: 1958-06-12
Abstract: 838,010. Electromagnetic relays. BOSCH G.m.b.H., R. June 12, 1958 [June 13, 1957], No. 18752/58. Class 38 (5). A relay which may regulate the voltage of a vehicle dynamo has contact members which pass through hollow ferrite members to effect radio-interference suppression. The armature 14 has a projection 17 carrying a bar 18 which supports an angle member 20 with the moving contacts 22, 23. A ferrite tube 19 surrounds and is secured by an adhesive on the bar 18 and similar tubes 28, 31 surround the conductors 26, 30 which carry the fixed contacts 24, 25. Capacitors 34, 35 are connected in parallel with the contacts.
Patent GB-530598-A (GB)
Title: Improvements in impulse senders of the type used in telephone systems
IPC: H04M1/34
Filed: 1939-06-28
Abstract: 530,598. Impulse transmitters. GENERAL ELECTRIC CO., Ltd., and PUCKETTE, C. C. June 28, 1939, No. 18821. [Class 40 (iv)] In an impulse sender of the type described in Specification 518,721 in which an impulse wheel 1 swings a pivoted and articulated rocker, which carries a member 12 for operating the impulse springs during the returnmovement, clear of the springs during the setting movement, noise is minimized (1) by providing flats on the rocker whereby the spring 7 holds it in two extreme positions and prevents the end 8 from dropping to the bases of the notches between the teeth during impulse production, (2) by the provision of a resilient buffer for the pivoted part 5 of the rocker the buffer taking the form of a rubber pad carried by a projection on the arm or a rubber washer or a spring carried by the frame, (3) by serrating the bases of the notches between teeth or by giving them a curved form to eliminate a click due to the movement of the end of the rocker 8 in a notch at the beginning of the winding up and impulse sending movements.
Patent GB-644391-A (GB)
Title: Improvements in or relating to filtering apparatus for fluids
IPC: B01D45/08
Filed: 1947-10-16
Abstract: 644,391. Gas filters. POOLE, R. Oct. 16, 1947, No. 18968. [Class 8(ii)] [Also in Group I] Filtering apparatus comprises one or more filter members of generally streamlined cross-sectional form arranged so as to be in the stream of gas to be filtered so that the gas flows past each member in a direction parallel or at a small angle to the longitudinal axis of its streamlined crosssections, the part of each member first met by the approaching gas being impervious while the rear part constitutes a filter element through which the gas can flow. As shown in Fig. 2, the members in the form of aircraft wings are arranged in staggered relationship in a duct through which gas flows, each member comprising an imperforate nose-portion B<SP>1</SP>, a perforated streamlined element B<SP>2</SP>, B<SP>3</SP>, and filling C of a mass of fibrous metallic or other material, e.g., steel wool. Longitudinal strengthening ribs B<SP>4</SP> are provided. In a modification, Fig. 5, the members are arranged at an angle to the direction of flow, on supporting members F, spacing members E<SP>1</SP> being provided at the ends of each member, so that when a screw F is operated to vary the angle of tilt, the filter members all move parallel to one another. According to the Provisional Specification the members may be mounted on or constitute a rotor of cylindrical form, the gas stream entering or leaving the interior of the cylinder by one end and leaving or entering a casing surrounding or partially surrounding the cylinder to provide radial flow. The cylinder may be rotated so that members come successively into line with the opening in the casing to perform their filtering function, while other elements are passing through a bath of wetting or cleaning liquid into which the lower part of the cylinder dips.
Patent GB-323713-A (GB)
Title: Improvements in or relating to catalytic processes of dehydrogenation and dehydration of organic compounds
IPC: C07C45/00
Filed: 1928-06-30
Abstract: 323,713. Marks, E. C. R., (Du Pont de Nemours & Co., E. 1.). June 30, 1928. Right to Patent relinquished. Ethylene ; propylene ethers.-In processes for the catalytic dehydrogenation or dehydration of organic compounds by the use of a catalyst, consists of an oxide of a metal or of silicon, which normally has both effects, a repressive agent is added to control one or the other of the effects, such agent being more basic than the catalyst when the dehydrating effect is to be repressed and more acidic when the dehydrogenating effect is to be repressed. Repressive agents for dehydration are alkali and alkaline earth metals in the form of oxides, carbonates., hydroxides, or salts with weak, e.g. organic acids. Repressive agents for dehydrogenation are strongly acidic oxides in the form of acids, ammonium salts or anhydrides. Suitable acidic oxides are those of manganese, sulphur, chromium, phosphorus, arsenic, silicon, titanium, tin, boron, aluminium. The oxide catalysts proper may be the oxides of beryllium, magnesium, zinc, aluminium, silicon, titanium, germanium, zirconium, tin, cerium, thorium, vanadium, bismuth, chromium, molybdenum, tungsten, uranium, manganese, iron, or any of the rare earths. Example 1. Isopropanol vapour passed over a zinc oxide catalyst gives acetone with a proportion of propylene. If 4.5 per cent of sodium carbonate is added to the zinc oxide the mount of propylene is much reduced. If on the other hand zinc sulphate is added the proportion of propylene is greater than that of acetone. Example 2. When ethanol is passed over a uranium oxide catalyst the addition of potassium carbonate increases the proportion of acetaldehyde to ethylene in the product and the addition of boric acid greatly reduces the proportion of acetaldehyde. Reference is made to the dehydrating of methyl alcohol to produce methyl ether. Specification 301,806 is referred to.
Patent GB-190855-A (GB)
Abstract: 190,855. Anderson, M. H. Nov. 2, 1921. Propelling.-Two high-speed propellers 50 are driven from a single low speed engine 13, having a transversely arranged shaft 14, by means of two trains of spur gearing carried in oil-retaining casings 11, 12 which are supported on the interplane struts of an aeroplane, the end shafts of the two trains having worm-wheels 30 meshing with worms 15, 16 on the shaft 14.
Patent GB-772112-A (GB)
Title: Coated paper product for planographic printing masters
Inventor: WORTHEN STEPHEN VAIL
IPC: B41N3/03
Filed: 1955-07-04
Abstract: 772,112. Coated paper. WARREN CO., S. D. July 4, 1955, No. 19270/55. Class 96. [Also in Group XVI] A planographic printing plate comprises a paper-base and a coating thereon containing finely divided inert mineral pigment, a watersoluble, water-stable acetate or formate of calcium, strontium, barium, cadmium, zinc and bivalent copper, nickel, cobalt, iron, lead, manganese, or mercury and an insolubilized hydrophilic adhesive which is not coagulated by the salt, the weight of which salt is from 5-40per cent of the total weight of the coating. The coating consists of the evaporation residue of the salt, an adhesive of starch, polyvinyl alcohol, sodium cellulose sulphate carboxymethyl cellulose or hydroxyethyl cellulose, and a watersoluble partially condensed urea-aldehyde, or melamine-aldehyde resin for rendering the coating water-insoluble when dried by heat. In an example about 10 pounds, dry weight, per ream of a mixture of 100 parts by weight of paper-coating clay, 40 of starch, 40 of zinc acetate, 14 of melamine-formaldehyde condensate, 3.5 of monochloracetic acid (to control the pH value) and 25 of proponal (foam dispersant) together with water to make the solid content about 30 per cent was applied to paper, which was then dried, supercalendered and inscribed with a typewritten image. Specifications 633,747, 633,796, [both in Group XVI], and 746,226 are referred to.
Patent GB-880482-A (GB)
Title: Writing tablets
Inventor: MYERS MALCOLM BAYLEY
IPC: B42F9/00
Filed: 1958-06-17
Abstract: 880,482. Block and sheet holders. MYERS & SON Ltd., M. May 14, 1959 [June 17, 1958], No. 19304/58. Class 146(1) [Also in Group XXV] A writing tablet comprises a base a and a spring clip for securing paper sheets to the base, the rear portion b of the clip being secured to the base by a rivet f and the front movable jaw c having a central gap e and a hollow bead i extending along its free edge at each side of the gap, the jaw being actuated by a finger lever g made from a length of resilient wire having lateral extensions engageable in the adjacent ends of the bead. The lever g may lie flat against the base a or may be pivoted into the position shown for opening the clip. Parts k on the jaw c tend to urge the lever g into one or other of these positions. The clip is formed with a tongue piece m shaped to serve as a pencil holder.
Patent GB-332707-A (GB)
Title: Improvements relating to the drawing-rollers of spinning-frames
IPC: D01H5/48
Filed: 1929-06-24
Abstract: 332,707. Morton, C. June 24, 1929. Rollers and roller heads.-In spinning-frames the front, back, and intermediate pairs of rollers are arranged to run just clear of each other and the weighting-means consists of a roller 17 mounted in a guideway 19 so as to apply pressure to the top back roller. The intermediate rollers are preferably of relatively small size and covered, and the bottom roller thereof may be frictionally driven as shown in Fig. 4.