baber/WOPTO huggingface dataset:
Patent GB-541925-A (GB)
Title: Improvements in thermal responsive switches of the glowdischarge type
IPC: H05B41/08
Filed: 1940-08-06
Abstract: 541,925. Thermal switches; switch cases; switch contacts. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 6, 1940, No. 12633. Convention date, Aug. 12, 1939. [Class 38 (v)] A bimetallic switch of the type which is operated by glow-discharge produced in an ionizable medium in an envelope 10, and suitable for starting low-pressure discharge lamps, such as fluorescent lamps, as set out in Specification 521,618, has a U-shaped bimetal element 19 with one limb mounted directly on a lead-in wire 15 so as to extend transversely of the envelope, and the other and longer limb carrying a molybdenum electrode 22 which co-operates with an electrode 18 formed by the bent-round end of the other lead-in 16 also of molybdenum. When a glow-discharge heats the element, it flexes so as to bring an offset part 23 of electrode 22 into contact with electrode 18, thus causing the two series-connected thermionic electrodes of the lamp to be preheated to the necessary discharge-supporting temperature, and the glowdischarge in the switch to cease. The resulting cooling of the element 19 opens the circuit after a delay (corresponding to the preheating period) and the lamp discharge begins, Fig. 5 (not shown). The tubular glass envelope 10, to which is cemented a bayonet-type metal base 12, has the lead-in conductors 15, 16 inserted through a stem 17 as in Specification 521,917, [Group XXXVI], and is provided with a filling of neon containing 0.5 per cent. of argon at a pressure of 40 mm. of mercury. The lead-in 15 is extended and carries a nickel disc 25 on which is fixed a button 26 of magnesium which, after evacuation of the envelope, and prior to admission of the gas, is volatilized to provide a "getter" deposit on the envelope surface and an actuating deposit on the element 19 and electrode 18. Alternatively, a magnesium-strip may be fixed to the inner surface of element 19 so as to replenish the deposits during subsequent operation of the device. Reference has been directed by the Comptroller to Specification 533,249.
Patent GB-416596-A (GB)
Title: Improvements in or relating to electric kettles, urns and the like
IPC: A47J27/21
Filed: 1933-05-02
Abstract: 416,596. Kettles &c. BAKER, Ltd., F., BAKER, A., BAKER, H. W., and BAKER, H. E., 30, Park Street, Birmingham. May 2, 1933, No. 12707. [Class 66.] The bottom of the kettle 9 or the like is provided with a recess 2 surrounded by an annular backing plate 3. A conically flanged member 4 carrying an attachment stud 6 is arranged in the recess and the edge of the flange is pressed over the edge of the plate and gripped in the fold formed in the wall of the recess. The conical flange is slotted to facilitate spreading. The stud 6 is fixed to the member 4 by means of a tapped disc 7. An electric heating element 10 is clamped against the kettle bottom by a dome-shaped plate 11 mounted on the stud. The kettle is shaped by spinning after the backing plate 3 has been secured to the blank.
Patent GB-263023-A (GB)
Title: Improvements in springs for motor cars, lorries, railway engines and trucks and other vehicles
IPC: F16F1/24
Filed: 1926-05-19
Abstract: 263,023. Cooley, J. W. May 19, 1926. Laminated springs are constructed from longitudinally corrugated leaves 1 alternating with plain leaves 2. The channels 3 running the whole length of the spring contain large quantities of grease.
Patent GB-142870-A (GB)
Title: Apparatus for rectifying high and low frequency alternating currents
IPC: H01J17/38
Filed: 1920-05-08
Abstract: 142,870. Nienhold, J. May 15, 1917, [Convention date]. Vacuum tubes. - A rectifier operates with a " glow-arc" discharge in a rare gas, and has a cathode K of an alkali metal such as potassium or alloy thereof, and one or more anodes A of metal such as copper or constantan, the potential drop in the tube being about 15 volts. The gas may be argon at a pressure of 1 mm. of mercury, or helium or neon. The cathode may be made of large surface and the anode of small surface to prevent discharge in the reverse direction. In the arrangement shown, the rectifier is used for charging a battery AB. Several rectifiers may be arranged in series for use with high-potentials.
Patent GB-494180-A (GB)
Title: Improvements in or relating to mercury switches
IPC: H01H29/04
Filed: 1937-05-05
Abstract: 494,180. Uniting metal to ceramic material. GENERAL ELECTRIC CO., Ltd., TURNER, H. C., and ENGEL, E. May 5, 1937, No. 12846. [Class 36] [Also in Group XXXVII] A mercury switch comprises a container for the mercury made of ceramic material wherein any arcing which occurs is totally enclosed. Each electrode passes through an extension of the container, and is sealed therein by the fusing of a small mass of glass or metal having a suitable coefficient of expansion. Evacuation and filling may be effected through a metal or glass tube fused into the container, which may be glazed internally or externally.
Patent GB-858483-A (GB)
Title: Improvements in electrical components such as capacitors having protective surface finishes
Inventor: COOK RONALD JOHN
IPC: B23K35/36
Filed: 1958-04-23
Abstract: An electrical or electronic component, e.g. a capacitor, having a part intended for soldering has a solderable protective finish comprising a pigmented synthetic thermoplastic material having the property that it shrivels away clearly from a metal surface when the heat of solder is applied.  Suitable materials are polyurethanes, polystyrenes, ethyl cellulose, cellulose nitrate, or alcohol-soluble nylon which may be applied by dipping the component in the molten material or by applying a solution of the material by brushing, dipping or spraying.  The wires, tags or other connecting points which are to be soldered may be completely covered.
Patent GB-1311931-A (GB)
Title: Data converter
IPC: G06F3/00
Filed: 1970-03-17
Abstract: 1311931 Photo-electric reader TOA TOKUSHU DENKI K K 17 March 1970 [17 March 1969 14 Oct 1969] 12899/70 Heading G1A [Also in Division G4] A photo-electric pick-up 23 (see Fig.4) for detecting the position of a boundary between a region of low reflectivity and high reflectivity comprises a photo-electric detector 58 and a lamp 57. The boundary between the two regions of different reflectivity obeys an equation y = f(x), and the regions are mounted on a roller 20. The photo-electric pick-up 23 can be moved parallel to the cylinder according to the value of 'x' and the cylinder may be rotated. In alternative embodiments the cylinder is replaced by a table, and the pick-up may comprise a lamp and photo-detector on opposite sides of transparent medium, the equation y = f (x) being defined by changes in transparency.
Patent GB-877315-A (GB)
Title: Improvements in eddy current machines
IPC: H02K49/04
Filed: 1960-04-12
Abstract: 877,315. Eddy-current machines. EATON MANUFACTURING CO. April 12, 1960 [April 13, 1959], No. 12934/60. Drawings to Specification. Class 35. The ferromagnetic eddy-current member of a coupling, brake or dynamometer is provided with a layer of copper covered by a chromium facing on the side adjacent the inductor member, to prevent damage by particles carried in the cooling fluid while presenting a layer of relatively low resistance to eddy currents, thereby providing higher torque at low slip speeds. A layer of nickel may be interposed between the copper layer and the ferromagnetic base. An eddy-current slip coupling in which an eddycurrent member according to the invention may be used is also described.
Patent GB-225781-A (GB)
Title: Improvements in or relating to scooters and like velocipedes
IPC: B62K3/00
Filed: 1924-05-27
Abstract: 225,781. Headley, F. H. Jan. 19, 1924, [Convention date]. Foot-cycles or scooters of the type in which the steering-pillar and front wheel are mounted in advance of the foot platform, and the steering-pillar is adapted to fold down on to the foot platform, are provided with a rule-jointed stay between the steering-pillar and the platform. A pair of links 26 are pivoted to the frame bars 23 and to U-shaped clips 27, 28 riveted to a bracket 20, which is pivoted at 16 to a yoke secured between the parallel bars 12 of the steering-pillar. Rule-jointed stays 33, 34, provided with a stop 38, are connected between the upper parts of the links 26 and the frame bars 23. The foot platform 29 is mounted on inverted U-shaped clips 32 secured to the inner surfaces of the frame bars 23.
Patent GB-1009918-A (GB)
Title: Improvements in or relating to 6ª-lower alkanoylthio-4-en-3-one steroids and their preparation
IPC: C07J31/00
Filed: 1963-04-02
Abstract: The invention comprises 6a -alkanoylthio-D 4-3-keto steroids wherein the alkanoyl group has less than 7 carbon atoms, the 6b -acetylthio-derivative of 17b -acetoxy-androst-4-en-3-one, 4 - cholesten - 3 - one and androst - 4 - ene - 3,17 - dione, and a process for preparing 6-alkanoylthio-D 4-3-keto steroids wherein the alkanoyl group has less than 7 carbon atoms by treatment of the corresponding 6b -alkanoylthio-5a -hydroxy-3-keto-steroid with (a) an acid, giving the 6a -epimer, (b) an inorganic oxyacid halide in the presence of a base, giving the 6 b -epiner, or (c) conversion of the 6 b -epiner thus obtained to the 6 a -epiner by treatment with an acid. Numerous products are listed, including 6b -epines not claimed. The compounds of the invention have anti-estrogenic and anti-fertility activity.  5a  - Hydroxy - 6b  - acetylthio - derivatives of androstane - 3,17 - dione, 17b  - acetoxy - androstan - 3 - one, 17a  - hydroxy - pregnane - 3,20-dione and 17b  - hydroxy - 17a  - ethynyl - estran-3-one are prepared by reaction of the corresponding 5a ,6a -epoxides, wherein keto groups may be ketalized, with thiolacetic acid.  5a ,6a - and 5b ,6b  - oxido - androstane - 3,17-dione 3,17-bis-ethylene ketals are prepared by reaction of the corresponding 5-ene with perphthalic acid.  Specification 907,552 and 1,009,917 are referred to.
Patent GB-699148-A (GB)
Title: Improvements in or relating to charge heating furnaces with gas circulation
IPC: C21D9/663
Filed: 1951-06-01
Abstract: 699,148. Circulating furnace atmospheres. EISEN-UND HUTTENWERKE AKT.-GES. June 1, 1951 [June 1, 1950], No. 13094/51. Class 51(ii) In an annealing furnace having an internal atmosphere-circulating fan 3 mounted on the end of a shaft 4, the said shaft is cooled by passing furnace atmosphere gas from a pipe 7 through an annular chamber 8 surrounding the shaft which latter has contacting sleeves 13 and 14 formed with fins 11 and 12 respectively, and through a port 9 into the furnace cover 2. The shaft is supported by water-cooled roller bearings 17 and 18 and a water jacket 19 surrounds the chamber 8 between the bearings. The upper part of the chamber 8 has stationary fins 15 defining with the fins 12 a sinuous path for the incoming gases. Exhaust apertures 20 are provided for the atmosphere gas and for any oil vapours driven off the load e.g. coiled strip.
Patent GB-227351-A (GB)
Title: Improvements relating to traps for catching rats and mice
IPC: A01M23/04
Filed: 1924-08-14
Abstract: 227,351. Harris, J. Aug. 14, 1924. Animal traps.-A continuous-action trap comprises two pairs of platforms a, b, pivoted at c in a frame d hinged over a receptacle e containing water in which is dissolved a chemical. The animal reaches the platforms by a stage g at each end extending inwards beyond the end pivots c. Bait is placed on a shelf m and on a spike h carried in a cover k removable by hooks n and having end pieces q to restrict the opening. Perforated or imperforate material, spaced bars or interwoven wire may be used for this cover.
Patent GB-220382-A (GB)
Title: Improvements in and relating to electric switches or circuit breakers
IPC: H01H3/46
Filed: 1923-05-16
Abstract: 220,382. British Thomson-Houston Co., Ltd., and Fitzgerald, A. S. May 16, 1923. Addition to 188,513. Electromagnetic switches; actuating; locking. -Relates to the operation of electric switches through toggle mechanism wherein a. second toggle is employed which locks the switch in the open position, as in the parent Specification, and consists in the arrangement in which each toggle comprises two links pivoted one to another, one link of one toggle being pivoted to one link of the other toggle. As shown applied to a double-acting switch which may be actuated one way by a single solenoid or both ways by solenoids acting alternately on plungers in connection with the rectilinearly-moving operating member 21, the bridging contact arm 6 attached to the link 7 pivoted to the frame is moved to its extreme positions where it engages with fixed contacts 5 mounted on spring plates by upsetting one toggle linkage and thereby setting the other. All the links are double; the link 14 pivoted at 18 at one end and the link 15 pivoted to the link 14 at 28 and at the other end to the frame at 12 constitute one toggle. The other toggle is constituted by the long link 16 also pivoted at 18, and consequently pivoted to the link 14, and the backward-directed link 17 pivoted to the frame at 13. When the operating member is drawn down from the position shown in Fig. 1, the upper of two insulating flanges secured thereon engages both the links 14, 16 which throughout the movements of the two toggles always remain parallel with one another. The downward movement upsets the toggle 14, 15 thereby carrying the switch arm over to the other pair of fixed contacts, and, at the same time sets the toggle 16, 17 which locks the switch in the new position.
Patent GB-165622-A (GB)
Title: Improvements in anti-vibration devices for motor cycles and the like
IPC: B62K25/06
Filed: 1920-05-13
Abstract: 165,622. Wooler, J. May 13, 1920. Spring devices. - Relates to spring-mounted wheels of the type in which the hub spindle b is supported at each end between springs e, f in a slotted case d, the slots g in which are closed by covers 1, 2 mounted on the spindle b to exclude dirt and retain lubricant. The covers 1, 2 are provided with felt &c. pads or washers 3, 4. Guards 5 are formed on the case d to keep wet &c. away from the upper ends of the covers. One of the covers 7 on the other side may be formed with a pin 8, a boss 9, and an eyed lug 10 for the attachment of parts of the brakes, control cables &c. The cover 1 may be formed with an elongated boss 6, so that when it is removed by withdrawal of the spindle b, room is provided for the removal of the tyre cover or tube.
Patent GB-653388-A (GB)
Title: Improvements in or relating to electric discharge devices
IPC: H01J19/42
Filed: 1947-05-16
Abstract: 653,388. Thermionic valves. M-O VALVE CO., Ltd., and WARREN, G. W. May 16, 1947, No. 13267. [Class 39 (i)] An electrometer valve comprises a control electrode 9 mounted on and in intimate contact with a first member 2 of ceramic or refractory insulating material, an anode 12 similarly arranged on a second member 1, and a cathode 5 supported between further members fixed to or supported by either or both of the first and second members. In Fig. 1 the cathode is supported at one end by a nickel band 4 and at the other by a tensioning-spring 8 supported from a nickel band 3. The nickel bands serve to space the ceramic members 1 and 2, and the lead-in wire 10 to the end 3 of the cathode passes through the inside of ceramic rod 1. The electrodes 9, 12 may be nickel cylinders wrapped around rods 1, 2 or may be metallic deposits on the rods. Further electrodes may be provided and may be supported from the ceramic rod on which the anode is mounted. The electrodes may be surrounded by a nickel screen 15 which may be a cylindrical sheet whose ends overlap but do not touch each other. A metal strip carrying getter material may be strapped between the two ends of the sheet 15 so that the getter can be fired by inducing eddy currents in the screen.
Patent GB-257028-A (GB)
Title: Improvements relating to variable electrical condensers, variometers or like adjustable devices in wireless apparatus
IPC: H03J1/14
Filed: 1925-05-21
Abstract: 257,028. Harper, T. May 21, 1925. (No Patent granted (Sealing fee not paid). Wireless tuning-apparatus, adjustment devices for.-Adjustment devices for variable condensers, variometers, &c. in radio apparatus comprise a shaft 3, Fig. 1, secured or in operable relation to the moving spindle 4 of the condenser &c., steel or other balls 6 rolling between a handactuated driving-member 8 and a normally non- rotatable opposing member 5, and an idle member 2 interposed between the members 5, 6, driving or fixed to the shaft 3 and embracing and driven by the balls 6. The member 5 may be provided with a circular groove 7 of a width less than the diameter of the balls and of a depth sufficient to give a clearance between the balls and the bottom of the groove, the balls rolling on the edges of the groove. The member 2 may comprise a dial and the member 8 may be formed as a knob loosely mounted on the shaft 3 and pressed downwards against the balls by a spring 9. One or more discs similar and similarly operated to the member 2 may be interposed between the member 2 and the knob 8, each set of balls running in a groove in the disc below them. In a modification, balls roll between an inclined groove in the non-rotatable member and a conical end on the driving member which extends through the idle member. In a further modification a disc a, Fig. 3, secured to the condenser shaft b embraces a circular series of balls d between a freely mounted driving-disc e and a fixed flat panel c, the disc e itself embracing balls f driven by a disc g which may itself embrace balls j. The upper balls j are driven by a knob h freely mounted on the shaft b and co-operating with thrust plates n, balls o, and springs m, p pressing the parts together. Reference has been directed by the Comptroller to Specification 245,080.
Patent GB-133632-A (GB)
IPC: A47G1/20
Abstract: 133,632. Dempster, W. E. May 15, 1919. Hooks fixed to walls.-A hook for suspending pictures &c. has a key-hole slot to fit over the head of a nail, and a cover-plate 4 concealing the slot and nail head. The plate 4 is fixed by projections 5 entering slots in the base 1. The hook 3 is rounded to accommodate the picture cord.
Patent GB-1104959-A (GB)
Title: Improvements in or relating to horticultural frames
Inventor: EDMONDS JOHN BRIAN
IPC: A01G9/20
Filed: 1966-03-25
Abstract: 1,104,959. Horticultural frames. JOHN TOOBY & CO. Ltd. 14 Feb., 1967 [25 March, 1966], No. 13378/66. Heading A1E. A horticultural frame comprises front and back walls 1, 2 extending upwards from a rigid foraminous floor 3, a light-transmitting top 4 supported by the walls 1, 2, and bearers 5 secured to the underside of the floor to support the frame above a surface on which it is rested and spaced apart to permit the insertion therebetween of means arranged to engage the underside of the floor when the frame is moved. The front and rear edges of the top 4 are located in U-shaped brackets 10, 11 for rocking movement relative thereto, the front bracket 10 having secured thereto a slider 12 movable in guide means 13. The top 4 is held in the raised position by a peg which passes through a hole in the guide means 13 and one of a number of longitudinally spaced holes in slider 12. A number of frames may be located side-byside, a pipe 17 equipped with spray nozzles extending through the frames.
Patent GB-234506-A (GB)
Title: Improvements in electrically heated ovens
IPC: F24C7/06
Filed: 1925-05-22
Abstract: 234,506. Krug, W., (Assignee of Fassoli, M.). May 22, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Resistance ovens. - In a roasting or baking oven having heating elements arranged at the top and bottom thereof, the material to be roasted is partly protected from radiant heat by providing the elements and/or the walls of the oven adjacent thereto with surfaces which partly absorb the heat rays. The elements mav be of highly polished nickel, may be coated with aluminium, or may consist of an aluminium plate. Heating elements at the back of the oven may be screened by plates coated with nickel or aluminium or plates made of aluminium or zinc. These plates may entirely enclose the heating elements, being provided with air passages at the top and bottom to allow air circulation which may be assisted by non-enclosed heating elements.
Patent GB-543373-A (GB)
Title: Improvements in and relating to cop-winding machines with automatic cop-tube changing devices
IPC: B65H67/04
Filed: 1940-08-26
Abstract: 543,373. Winding yarns. MASCHINENFABRIK SCHWEITER AKT.-GES. Aug. 26, 1940, No. 13463. Convention date, Aug. 25, 1939. [Class 120 (ii)] In a cop winding machine having automatic tubechanging arrangements and in which the thread from the thread guide to the doffed cop is changed between the driving head and the newly-inserted empty tube and severed between the cop and the driving head, an additional cutting-device is provided for severing the yarn end extending between the base of the cop and the driving head after the winding of the newly-inserted tube has commenced. As shown the additional cutting-device 33 is pivoted on a stud 31a on the top of a casing 30 which protects the carriage 28, carrying the feeler wheel 29 and the means for feeding the carriage forward at each traverse, from dust; the distance between the base 38 of the cop and the blade 35 of the cutting device is adjusted by a set screw 41 screwing through a lug 40 on the device and engaging the top of the casing 30. At the start of the winding the device is held raised in the inoperative position by a cam plate 42 on the feeler carriage 28 and when the plate leaves the device the latter falls and the blade 35 severs the loop of thread extending between the base 38 of the cop and the driving head 9 where it has been clamped when the previously-completed cop was doffed. The cam which effects the declutching of the driving head has a notch which allows the head to be driven for a brief period while it is in the retracted position to fling off the severed yarn ends which ends may be removed by a suction device which is brought into operation when the head is retracted and the ends still hang loose therefrom.