baber/WOPTO huggingface dataset:
Patent GB-969908-A (GB)
Title: Veterinary compositions comprising a nitroimidazole derivative
IPC: A61K31/00
Filed: 1961-06-16
Abstract: Veterinary compositions for the treatment of turkey blackhead p comprise a carrier and 1-methyl-5-nitro-imidazole or a non-toxic organic or inorganic acid addition salt thereof.  Compositions wherein the active compound is admixed with feedstuffs and concentrates for addition thereto are particularly mentioned.  The invention also comprises the method of combating turkey blackhead in commercially reared turkeys by administering a non-toxic dose of the active compound to the turkeys.
Patent GB-1106814-A (GB)
Title: Methods of electrolytic production of oxides of platinum and/or palladium or oxides of platinum and/or palladium mixed with oxides of other metals not harmful to the catalytic properties of the platinum and/or palladium oxides
IPC: C25B1/00
Filed: 1965-05-24
Abstract: Oxides of platinum and/or palladium or oxides of these metals mixed with those of other metals not harmful to their catalytic properties are produced by electrolyzing a molten bath comprising an alkali metal nitrate and an alkali metal halide with an anode of Pt or Pd, Pt-Pd, or alloys based thereon.  Preferably the bath is operated in the temperature range 340 to 520 DEG C. and consists of NaNO3 containing up to 10% LiCl optionally with 0.1 to 1% NaOH.  The oxides are extracted from the broken-up cake of solidified electrolyte by leaching outside the cell with hot water followed by treatment of the oxide with hot dilute HNO3. Electrolysis may be effected in a cell of glass, Ni or stainless steel with a cathode of Ni wire or sheet or the nickel cell as cathode.  Specific anode materials referred to are Pt-base alloys containing Rh, Ir or Ru.
Patent GB-832690-A (GB)
Title: Relay with self-cleaning contact elements
IPC: H01H1/24
Filed: 1956-07-16
Abstract: 832,690. Electromagnetic relays. PANDAPAS, G. J. July 16, 1956 [March 23, 1956], No. 21883/56. Class 38 (5). A relay coil 1 having a magnetic casing 4 and fixed core 2 controls a plunger armature 3 to operate a number of wire contact springs B through a plunger 6. Each spring B is fixed at one end 23 to a terminal 24, has a coiled portion 22, a contact-engaging portion 26, and its other end slidably located in a respective one of a number of notches 20 formed between a pair of insulating plates 19 fixed to the plunger 6. Each contact B co-operates with the cranked ends 27 of a pair of upper and lower wire contacts C sealed through the end plate 8, and when the coil 1 is not energized a spring 9 biases the plunger 6 so that each contact portion 26 engages the cranked end 27 of the lower contact C of its pair, energization of the coil causing the upper contact C to be engaged. The arrangement ensures that a sliding contact-cleaning action takes place upon contact engagement. The contact surfaces 26, 27 may be electro-plated with silver followed by electro-plating with gold. The plate 8 is sealed in the can D at 19a.
Patent GB-688311-A (GB)
Title: Improvements in or relating to circulator units for central heating systems
IPC: F04D29/04
Filed: 1950-09-05
Abstract: 688,311. Lubricating dynamo electric machines. JARSAILLON, F. Sept. 5, 1950 [Sept. 8, 1949], No. 21900/50. Class 35. A circulating water pump for use in central heating systems is driven directly and without stuffing-boxes by a motor having its stator separated from the rotor by a partition 5. Part of the water displaced by the pump 1 passes through radially disposed holes 13 in the walls of chamber 10 and also through ducts 14 in a flange 2 so as to cover the bearings 8, 9 with a liquid-film acting as a lubricant. A through hole 7 in the shaft 6 assures the reflux of the water traversing the bearing 8 which is then discharged through the openings 15 into the pump. Fig. 2 shows a device to be screwed in a tapped projection 16 of the pump casing 1 so that by means of a tapered part 23 of a rod 22 the running and direction of rotation of the pump can be determined.
Patent GB-583623-A (GB)
Title: Improvements relating to the manufacture of pigments
IPC: C01G49/02
Filed: 1944-11-09
Abstract: Brown pigments are prepared by mixing in the dry state two or all of the yellow, red and black iron oxides and heating the mixture as such or heating the yellow or/and black oxide before the mixing.  The temperature may vary between 150 DEG  and 350 DEG C. (or even higher for reddish shades), preferably between 200 DEG  and 300 DEG C.  A mix of 40 per cent yellow and 60 per cent. black iron oxide becomes nut brown at 220 DEG C. and a light reddish brown at 300 DEG C. with corresponding shades between these temperatures.
Patent GB-640385-A (GB)
Title: Tape serving machine
IPC: A47F13/04
Filed: 1947-08-08
Abstract: 640,385. Tape dispensers. KRUEGER, T. H. Aug. 8, 1947, No. 22106. Convention date, Jan. 20, 1942. [Class 18] A tape dispenser comprises a rotatable reel 22 having radially extending plates 25 to the edge of which pressure sensitive adhesive tape, fed from a supply roll 15, adheres, and a severing device 30 positioned adjacent the reel to sever the tape. The reel 22 is supported on a spindle 21 between two frame members and is rotated by a roller 55 supported on the lower crank of a handle 51, engaging a radially extending plate 25 on each revolution of the handle. A locking member comprising a lever 60 having a notched portion 67 for engaging an edge of a plate 25 serves to hold the reel stationary whilst a length of tape is severed. The lever 60 is biased into a locking position by a spring 68 and an arm 70 of the lever is engaged by the roller 55 on the handle to move the notched portion 67 of the lever out of engagement when the handle is operated to rotate the reel. The tape extends between the members 25, and when it is desired to remove a length the end of the tape is grasped and drawn into engagement with the severing device 30. The severing device 30 extends between the frame members which are provided with notched portions 35 to accommodate the device so that its position may be altered to render the tape readily accessible or to enable longer lengths of tape to be withdrawn. Several rolls of tape may be supported in the dispenser so that the tape from each extends over the plates 25.
Patent GB-1344008-A (GB)
Title: Semiconductor devices
IPC: H03F3/10
Filed: 1971-04-19
Abstract: 1344008 Semiconductor oscillator circuits PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 April 1971 [19 Feb 1970] 22128/71 Heading H3T [Also in Division H1] A V.H.F. amplifier comprises a semiconductor diode 33 having a body of two valley semiconductor material, which amplifies without generation of Gunn domain oscillations. This diode is mounted on a base 39 terminating a coaxial line 32 with one of its terminals contacting the inner conductor 38 of the line and its other terminal contacting the outer conductor 37 via base 39. The line is connected via a circulator 31 to an input line 35 and an output line 41. The semiconductor material is gallium arsenide. The amplifier is suitable for use over a wide frequency range such as from 7 to 20 GHz.
Patent GB-317318-A (GB)
Title: Improvements in apparatus effecting fluctuations of the intensity of a pencil of light rays
IPC: H04N5/66
Filed: 1929-07-19
Abstract: 317,318. Zeiss, C., [Firm of]. Aug. 13, 1928, [Convention date]. Light - valves.- Fluctuations of the intensity of a pencil of light rays, described in connection with a long - distance telephone, are produced by the relative movements of optical elements, the rays striking the surface of one of the elements at the critical angle of reflection. In one example, a source of light a is imaged by a lens b on the bounding surface c<1> of a. fixed hemisphere c of glass, at the critical angle of reflection, so that when a movable glass body i actuated by a magnet h<1> contacts with the surface, the light is transmitted through the surface and not reflected by it. The glass body i may be adjusted so that variations of the distance between it and the surface c<1> produce variations in the intensity of the light rays which are reflected. These reflected rays are projected by a lens d to form an image on the selenium cell e at a considerable distance. The magnet h<1> is in the circuit of a microphone j, so that sound vibrations may be transmitted. In a modified form of the apparatus the glass surfaces are in contact and the transmitted pencil of rays is utilized.
Patent GB-172060-A (GB)
Title: Improvements in and relating to clocks, stopwatches, and like apparatus for indicating time or intervals of time
IPC: G04F8/00
Filed: 1920-07-26
Abstract: 172,060. Wood, A. B., and Ford, J. M. July 26, 1920. Electric clocks; driving - mechanism; stop mechanism.-In time indicators such as clocks and stop watches of the kind in which a member is rotated at constant speed by means such as a " phonic " motor, a second member is arranged to engage and rotate with the first member and to indicate time or intervals of time, and is instantly stopped when disengaged from the first member. Fig. 1 shows a diagrammatic arrangement in which 1 represents a " phonic " motor of constant speed, 2 the gearing of the dial or second member mounted on a spring or reed 3 to enable it to be engaged with or disengaged from the motor. The engaging and disengaging means may be mechanical or electrical; in the latter case an electromagnet 4 may be employed, the spring 3 constituting its armature. A brake 5 is provided for instantly arresting the rotation of the dial gear when disengaged from the motor.
Patent GB-763245-A (GB)
Title: Improvements in or relating to electric switches or switchgear
IPC: H01H1/16
Filed: 1953-08-13
Abstract: 763,245. Snap-action switches. BROOKHIRST SWITCHGEAR, Ltd., and BUTTERWORTH, E. M. Aug. 6, 1954 [Aug. 13, 1953], No. 22315/53. Class 38(5) Dumb-bell shaped roller, contacts 14 carried by a slide 15 are arranged to bridge pairs of fixed contacts 11. The smaller centre-part of the contacts 14 engages a cam surface 19 so as to raise the contact-making faces from the insulating surface during movement of the contacts, and also to give a snap-action. The operating member of Specification 753,723 may be used.
Patent GB-626593-A (GB)
Title: Improvements in or relating to multi-contact controllers or switches
IPC: H01H67/22
Filed: 1947-08-12
Abstract: 626,593. Controllers ; electromagnetic switches. TILLING-STEVENS, Ltd., and CRAMPTON, C. G. Aug. 12, 1947, No. 22377. [Classes 38(iii) and 38(v)] A controller is provided with a solenoid 16 having an armature comprising a sleeve member 18 which is adapted to rotate with and slide along a spindle 10. The sleeve 18 carries an arm 26 which is moved into suitable positions for actuating a number of pairs of main contacts 29, 32, which are closed in sequence as the spindle 10 is manually rotated. Movement of the spindle 10 turns a plate 58 so that a projection on an arm 60, which is pivotallymcunted thereon, meets the raised inner part of one of a number of latches 44: The arm 60 is thereby rocked and closes auxiliary contacts 50, 52, to energize the solenoid 16 and move the members 18 and 26 upwardly. The arm 26 rises, against the action of a spring 22, into the position shown in the left-hand side of Fig. 1, and actuates a spring-biassed lever 34 to close a first pair of contracts 29, 32. The outer end of the latch 44 rises to engage the lever 34 and to maintain the first pair of main contacts closed when the arm 60 is released and the colenoid is de-energized. Continued rotation of the spindle causes another latch 44 to move the arm 60 and energize the solenoid, so closing the next pair of main contacts in a manner similar to that described. Reverse movement of the spindle causes the members 44 to unlatch the switch-levers, by means of a cam 74. Buffer stops 78 may be provided to prevent damage to the contacts 29, 32. The spindle 10 may be operated by hand or pedal, and provided with means to prevent too rapid actuation. The path of movement of the rollers on the arm 26 are not necessarily circular. The apparatus may be used for opening switches instead of closing them. The intermittent energization of the solenoid 16 may be effected separately from the movement of the spindle. Details of the means for actuating the contacts 50, 52 are shown in Fig. 2A. A pin on the arm 60 engages in a slot in a lever 54 which carries the contact 50. An abutment 70 and spring 72 provide snap-action. Specification 554,381 is referred to.
Patent GB-803209-A (GB)
Title: Improvements in and relating to two stroke internal combustion engines
IPC: F02B75/04
Filed: 1956-07-19
Abstract: 803,209. Two-stroke engines; driving-gear; combustion-product power plant GOTAVERKEN A. B. July 19, 1956 [July 30, 1955], No. 22422/56. Classes 7(1) and 7(2) In an opposed-piston twostroke engine, automatic stroke adjustment of the piston 9 controlling the exhaust ports 4 is given by a fluidpressure-controlled resilient connection 21, 20 to its crank mechanism 11, 10, such that the cylinder compression space and exhaust port open period increase as engine load increases. A crosshead bore 18 houses piled springs 20 and a piston 21 fast with the piston 9 and is kept full of oil entering from a supply passage 24 and leaving by a restricted vent (not shown) to the crankhouse. The space between the piston 21 and a cover 19 is supplied with oil from the bore 18 via a duct (not shown) in the bore wall having a non- return valve preventing flow to the bore, the oil returning to the bore 18 via a restricted duct 27, or the duct 27 may be omitted and the non-return valve allow slight return flow. There may be a non- return valve in the supply passage 24. At engine starting, the springs 20 just depress the piston 21 fully, so that it is driven progressively upwards as load increases, the friction between the springs 20 preventing its appreciable fluctuation during each cycle and its rapid depression on load decrease being prevented by the dashpot effect of the oil between it and the cover 19. In the diesel engine shown, the exhaust of which drives a turbine or reciprocating engine to which almost the entire output of the engine is transmitted, the crosshead 12 mounts a piston 13 pumping scavenging and charging air to ports 3 controlled by the other engine piston 6. A fuel injector 17 and water jacket 2 are provided.
Patent GB-403174-A (GB)
Title: Improvements in or relating to plug-and-socket connectors, switches, fuses and the like
IPC: H01R13/453
Filed: 1932-08-11
Abstract: 403,174. Preventing sparking in switches. ARNOLD, C. L., and M.K. ELECTRIC, Ltd., Wakefield Street, Edmonton, London. Aug. 11, 1932, No. 22502. [Class 38 (v).] Shielding devices for socket-members 3 comprise one or more rollers 55, 65, mounted on pivoted arms 51, 15, and moving laterally to uncover the socket when a plug-member 36 is inserted. The rollers may be mounted on the engaging edges of the insulating blocks of the construction described in Specification 379,795. Specifications 294,689, [Class 38 (i), Electric couplings &c.], and 364,797, [Group XXXVI], also are referred to.
Patent GB-423311-A (GB)
Title: Improvements in and relating to cathode ray lighting devices
IPC: H01J29/52
Filed: 1933-08-12
Abstract: 423,311. Cathode ray tubes. FERRANTI, Ltd., and TAYLOR, M. K., Hollinwood, Lancashire. Aug. 12, 1933, No. 22592. [Class 39 (i)] In a cathode-ray lighting device in which an electron beam of fixed direction produces a line source of light on a fluorescent screen, the intensity control electrode comprises or incorporates a pair of parallel plane surfaces disposed on opposite sides of the cathode, and parallel to the longitudinal axis thereof. A flat or curved slotted anode is interposed between the cathode and the screen. In the example shown in Fig. 1, a heated cathode rod b is disposed parallel to a slot e in a flat anode d. A beam of electrons controlled in intensity by the negatively charged electrodes c passes through the slot and produces a line of light of controllable intensity upon a fluorescent screen f. In a modification, shown in Fig. 3, the control electrode c is U-shaped and the anode d is a cylinder concentric with the cathode b. In a further modification, a metal plate coated with fluorescent material is disposed within the tube, inclined to the plane of the electron beam, and connected internally or externally to a positive potential. According to the Provisional Specification the control electrode may comprise parallel curved plates. Specification 389,256 is referred to.
Patent GB-168229-A (GB)
Title: Improvements in vertical retorts
IPC: C10B1/04
Filed: 1920-07-30
Abstract: 168,229. Tozer, C. W. July 30, 1920. Retorts for the distillation of coal &c. are constructed with vertical chambers c less in length than the hot zone of the furnace and having perforations d to equalize the pressure throughout the chambers. The lower end of the retort is conical and in the outer wall has a seating e on which fits a false bottom f leaving a space h by which gases pass to a central tube b. The false bottom is connected by a neck to a door j which is secured to the bottom of the retort. Vertical gills k or helical ribs are formed on the outside of the retort casing. Specification 20158/09 is referred to.
Patent GB-1049140-A (GB)
Title: Improvements in or relating to mountings for the wheels of self-powered earthmoving machines
IPC: E02F9/02
Filed: 1965-05-28
Abstract: 1,049,140. Motor vehicle driving gear. P. DE BOSREDON. May 28, 1965 [May 30, 1964], No. 22719/65. Heading B7H. A tractor or other heavy duty vehicle, e.g. an earth working machine has a solid axle 1 pivoted to the vehicle at 2 and mounting at its ends by bearings 17 a wheel 12. The wheel hub 3 rotates within a casing 5 attached to the axle, and is rigid with a gear 4 which meshes with a gear 7 which receives its drive through a shaft 19, couplings 13 and an output shaft 8 of a differential gear disposed above the axle. In a modification, the driven wheels may be steerably mounted upon king pins carried at the ends of the axle which is non-pivotally mounted upon the vehicle (Fig. 3, not shown). The differential gear may be mounted so that the axes of the gears 7 and 4 are vertically disposed, or so that the plane through them inclines forwardly (Fig. 4, not shown).
Patent GB-1187631-A (GB)
Title: Improvements in Tabletting Ingredients
IPC: A61K9/20
Filed: 1967-05-16
Abstract: 1,187,631. Medicaments comprising sorbitol. MILES LABORATORIES Inc. 16 May, 1967, No. 22731/67. Heading A5B. A stable, chewable, tableting composition comprises from 25 to 100% by weight of sorbitol having a bulk density in the range 0.530 to 0.545 grms./cm<SP>3</SP> when determined by the method prescribed and a particle size in the range 16 to 40 U.S.S.M. Other excipients such as a lubricant, disintegrant, flavour or filler may also be present and tablets may be formed therefrom by compression. Tablets containing vitamins A, B, C and D, antacid tablets comprising CaCO 3 , magnesium trisilicate, Al(OH) 3 /MgCO 3  co-dried gel and tablets containing aspirin are described.
Patent GB-1377255-A (GB)
Title: Fermentation process for the production of citric acid
IPC: C12P7/48
Filed: 1972-05-15
Abstract: 1377255 Citric acid PFIZER Inc 15 May 1972 [27 May 1971] 22776/72 Heading C2C Citric acid is prepared by aerobic fermentation of an aqueous carbohydrate containing nutrient medium with Bacillus licheniformis ATCC 21667, to a level of at least 1 gram of citric acid per litre of medium. Conventional additives may be present and the citric acid is separated by precipitation as calcium salt followed by acidification.
Patent GB-1437033-A (GB)
Title: Variable intensity warning light
IPC: G08B5/38
Filed: 1973-05-14
Abstract: 1437033 Photo-electric control of lamp intensity EXXON RESEARCH & ENG CO 12 Oct 1972 [17 May 1972] 47134/72 Heading G1A A lamp 8 has its intensity controlled in proportion to the intensity of ambient light by supplying it with power generated by photovoltaic means 10 responsive to the ambient light. The output of the photovoltaic (solar cell) detector(s) 10 may, if desired, be converted to a voltage proportional to intensity before applying it to a voltage cubing circuit 9. If a flashing lamp operation is required, pulse generator 3 is used to interrupt the supply to the lamp 8 from the photovoltaic generator. Excess power generated by the' solar cells may be diverted to charge a battery to be used to power the lamp at night.
Patent GB-1152653-A (GB)
Title: Improvements in or relating to the Application of a Finish to a Peripheral Surface of a Workpiece
IPC: B05D7/06
Filed: 1966-05-23
Abstract: 1,152,653. Coating peripheral surfaces of articles. BOSTIK Ltd. 23 May, 1966 [24 May, 1965], No. 22811/66. Headings B2K and B2L. [Also in Division B5] In applying a finish to a peripheral surface of a workpiece; a coating of synthetic thermoplastic polymeric material in molten state is applied to the surface and thereafter the surface of said coating is smoothed by engagement with a pressure member having a smooth, adhesive repellant, work engaging surface. The surface of the pressure member may be profiled according to the shape it is desired to impart to the surface of the edging material. As shown a workpiece W e.g. a sheet of blockboard or hardboard is. conveyed by endless V-belts 14 first past coating applying devices 16 mounted on frame 10, for applying coating to opposite peripheral surfaces of the workpiece, and then past pressure applying member 20 consisting of endless belts 22 and a plurality of pressure rolls 26. The synthetic thermoplastic polymeric material may comprise a copolymer of ethylene and vinyl acetate, polystyrene or polyethylene. It may also contain a tackifier and/or colour pigment and if desired a plurality of coatings may be applied successively, each containing a different colour pigment to provide a multicolour effect. Examples are given.
Patent GB-457967-A (GB)
Title: A new and improved catch for gates
IPC: E05C19/00
Filed: 1936-08-19
Abstract: 457,967. Gate &c. fastenings. WING- FIELD, H. J., 24, Pearson Street, Port Elizabeth, Cape Province, South Africa. Aug. 19, 1936, No. 22812. Convention date, Dec. 10, 1935. [Class 44] A catch for gates &c. comprises a ring B loosely suspended on a rivet C between the main portion of an attachment plate A and the bent back end portion thereof. The ring co-operates with a fixed striking bar or plate, not shown, which lifts and engages behind the ring.
Patent GB-430065-A (GB)
Title: Improvements in and relating to display stands, pendants and brackets
IPC: G09F5/02
Filed: 1934-08-07
Abstract: 430,065. Displaying. HOBSON, C. W., 9, Park Place, St. James's Street, London. Aug. 7, 1934, No. 22842. [Class 3 (ii)] [See also Group VII] A display device comprises a base simulating a plant pot, tub, vase or basket and a number of curved stems or rods extending upwardly from said base, said rods bearing display platforms and a number of imitation leaf elements. The Figure shows an arrangement wherein rods c, detachably mounted in sockets in the base a, are provided with platforms d and adjustable leaf elements f serving as labels or price tickets. In a modification the base a is made half-round and secured adjacent a wall in the manner of a bracket. The base a may be suspended by a vertical rod from a ceiling.