baber/WOPTO huggingface dataset:
Patent GB-477664-A (GB)
Title: Automatic control arrangements for thermionic valves
IPC: H03L5/02
Filed: 1937-02-01
Abstract: 477,664. Automatic control; variable resistances ; current and pressure meters. STANDARD TELEPHONES & CABLES, Ltd. Feb. 1, 1937, No. 2881. Convention date, Feb. 1, 1936. [Class 38 (iv)] [Also in Group XXXVI] Current; oscillation frequency.-In athermionic valve oscillation generator in which the frequency is dependent upon the emission from the cathode, a variable resistance in the cathode heating circuit is controlled in response to variations in electron current to a positive electrode of the valve so as to maintain the generated frequency constant. A Barkhausen oscillator consists of a valve 13 whose anode and grid are coupled over wires 10 by a slider 11. The anode is maintained at a negative potential with respect to the cathode by a battery 20 and the grid is maintained at a positive potential by a battery 21 in series with a relay winding 19. The winding 19 controls a contact 51 operating between two fixed contacts 49, 50 controlling the circuits of two heating coils 43, 44 which surround the upper bulbous parts of a U-tube 33 containing mercury. One leg of the U-tube contains a resistance element 32 and the cathode heating circuit includes this resistance and a contact terminal 34 and battery 37. Variations in the grid current cause energization of one or other of the coils 43, 44 to produce expansion of a gas such as pentane in one or other of the bulbs of the U-tube so as to vary the resistance 32 in the cathode heating circuit to bring the grid current, and hence the frequency of the oscillations back to normal. In a modification, Fig. 2, circuits in shunt with the contacts 49, 50 include tapped resistances 60, 63, the tappings of which are connected to terminals inside the legs of the U-tube so that when the mercury rises sufficiently in these legs a parallel circuit for the corresponding heating coil is maintained through a part of the resistance 60 or 63. The coil is then heated sufficiently to maintain the mercury in this position irrespective of the opening of the relay contacts 49 or 50 so as to reduce hunting. The Specification as open to inspection under Sect. 91 disclosed an arrangement in which the U-tube resistance of Fig. 1 is used in the measurement of voltage or current. The relay 19, 51 is a differential relay, one coil of which carries the current to be measured and the other coil is connected across a resistance in series with the variable U-tube resistance 32, a battery and a recording meter. Variations in the current to be measured cause variations in the resistance 32 and hence in the current through the recording meter and opposing coil to return the relay 51 to its zero position, so that the current through the recording meter is proportional to the current to be measured. This subject-matter does not appear in the Specification as accepted.
Patent GB-469810-A (GB)
Title: Improvements in or relating to printing telegraph systems and apparatus
IPC: H04L25/40
Filed: 1936-01-31
Abstract: 469,810. Type-printing telegraphy. CREED & CO., Ltd., THOMPSON, A. E., and SALMON, R. D. Jan. 31, 1936, No. 2970. [Class 40 (iii)] The grid of a gas-filled discharge tube 5 is connected to the incoming line 1, 2 at contacts 6 for a brief interval in the middle of each signal - element period, and the anode circuit of the tube is associated in turn over successively-closed contacts 7A ... 7F With relays A ... F controlling respectively the magnets 13A.. 13F of a multi-magnet printer. At the beginning of a 6-unit code signal, contacts 6, 7G, 8 are closed and the start signal operates relay G to release the cam-shaft controlling contacts 6.. 9 for one revolution. At the end of the cycle contacts 9 are closed to operate the selected magnets and contacts 8 are then opened to unlock the operated relays. The magnets may control aggregatemotion apparatus as shown in Fig. 2 in which the rack 33 controlling the type-wheel is connected to link-mechanism 16..20 controlled by toothed segments 24.. 26 on the magnet armatures. The operation of each armature moves the associated gear-wheel 27..29 through 180‹ so that any back-lash is taken up on the dead-centre line and is not communicated to the armatures. Direct-current or voice-frequency alternating current signals may be used. Three magnets may as shown move the type-wheel in one direction and the other three move it in another direction, or all six may move it in one direction, or five may move it in one direction and the sixth produce case-shift. Specification 443,231 is referred to. The Provisional Specification also refers to Specifications 436,296 and 443,232.
Patent GB-422513-A (GB)
Title: Apparatus for mechanically folding over the side portions of a sheet of dough
IPC: A21C3/00
Filed: 1934-01-30
Abstract: 422,513. Working dough. PETERS, J. P., 8, Noordsingel, Rotterdam, Holland. Jan. 30, 1934, Nos. 3075 and 3076. Convention dates, Jan. 31, 1933. [Class 87 (ii)] The sides of a sheet of dough delivered. to a conveyer are folded over by a pair of converging ropes located slightly above and driven in the same direction and at the same speed as the conveyer, the parts of the ropes, at the place where they are furthest apart, extending below the sheet delivery device. As shown, the dough is delivered by sheeting rollers 1 to a roller 3 or other conveying member which coacts with a pair of grooving rollers 4 and guides the sheet towards the conveyer 2. Between the roller 3 and the conveyer are situated a pair of ropes 5 each of which passes over a horizontal pulley 6 and a vertical pulley 7. The working portions 8 of the ropes converge in the direction of movement and are inclined upwards away from the conveyer. The sheet of dough, grooved by the rollers 4, sags down imtil its body rests on the conveyer 2 and its sides on the portions 8 of the ropes, the sides being folded over by the ropes as the sheet travels towards the pulleys 7. The pulleys 7 may be constructed so as to press down the folds of dough, or means such as discs 13 may be provided adjacent the inner faces of the pulleys for this purpose. The discs 13 may be secured to the shaft 18, or may be loose on the shaft and each provided with internal teeth engaging a pinion on the shaft. Means may be provided to adjust the distance between the portions 8 of the ropes.
Patent GB-547072-A (GB)
Title: Sealing means for the edges of doors of motor vehicles
IPC: B60J10/00
Filed: 1941-03-07
Abstract: 547,072. Doors. BROWNE, J. H. WILSON-. March 7, 1941, No. 3097. [Class 20 (iii)] A flexible, inflatable tube 12, preferably of rubber, seals the edges of vehicle doors. It may be endless, butt-ended, or comprise a series of tubes arranged end-to-end. The side 15 remote from the supporting member is thicker than the other, and may be reinforced. Fluid pressure may be supplied from a storage vessel through a two-way valve which allows the tube to exhaust when sealing is no longer required. Pressure may be supplied from a flexible bellows, or piston and cylinder. As shown, the movable portion of the bellows 17 carries a hollow boss 19 with an internal quick screw-thread engaged by the threaded spindle 20 of the door-handle. Raising the handle to close the door-catch contracts the bellows and supplies fluid pressure to the tube 12.
Patent GB-1152491-A (GB)
Title: Improvements in or relating to Cleaning Tools For Conveyor Rollers
IPC: C03B18/02
Filed: 1966-01-24
Abstract: 1,152,491. Roller conveyers. PILKINGTON BROS. Ltd., G. A. DICKINSON and B. S. SWIFT. 3 Jan., 1967 [24 Jan., 1966], No. 3112/66. Heading B8A. [Also in Division C1] Glass in ribbon form 10 is received by rollers 11, 12 from a bath of molten metal 1, the rollers being cleaned of impacted material by a tool 14 from which the abraded material is collected by a suction device 15. In Fig. 3, abrasive blocks 19 are mounted on a structure 21, 23 welded to a central shaft 22 movable parallel to the axes of the rollers 11, 12. The tool 14 is manually or automatically pushed to and fro along the surfaces of the rollers as they rotate and is shaped to bear under its own weight against the rollers. Supporting means for the shaft 22 is vertically adjustable, (Fig. 2, not shown). In a further embodiment (Figs. 5-7, not shown) backing plates for the abrasive blocks are adjustable relative to the roller surfaces so as to control the pressure of the blocks on the roller surfaces and to take up wear of the blocks. A still further modification (Fig. 8, not shown) is additionally provided with brushes, e.g. of heat resisting steel, fixed to the backing plates. Weights may be located on the tool to adjust the pressure on the blocks. The blocks may be replaced by wire brushes or cloth or carbon or asbestos pads.
Patent GB-1416233-A (GB)
Title: Electrical bushing
IPC: H01B17/28
Filed: 1973-01-22
Abstract: 1416233 Cable terminations; bushing insulators WESTINGHOUSE ELECTRIC CORP 22 Jan 1973 [18 Feb 1972] 3155/73 Headings H2E and H2C Bushing outer member 24 bridges between a high-voltage bus-bar duct 10 which may contain pressurized sulphur hexafluoride gas 12, and a transformer enclosure 18 which may be filled with mineral oil 20. The electrically conducting tube 56, sealed by plug 60 and shield 66, may be void or may contain coolant fluid, and carries monitoring metal foil capacitor elements 82 within wound paper insulation 84. Conductors (not shown) are attached to plug 60 and shield 66. Insulating casings 68, 74, have sealing gaskets (not shown) at their ends 70, 72, 76, 78, which are compressed by tensile stress in tube 56, preset by nut 62 and spring 65, and a fluid dielectric 90 is enclosed within this bushing assembly 16, with an expansion tank 88. A level gauge 92 may provide warning in the event of leakage across either of the interfaces separating the dielectrics 12, 90, 20. Current transformer windings 38, 40, 42, 44 may be fitted around the bushing.
Patent GB-363205-A (GB)
Title: Improvements in the recovery of sulphuric acid from waste acids produced in the refining of mineral or tar oils
IPC: C01B17/92
Filed: 1931-01-31
Abstract: Acid sludges obtained in the refining of liquid hydrocarbons such as benzine or benzol are diluted with water and then centrifuged or filtered, the operations being preferably conducted while cooling to 15-30 DEG  C.  An amount of water equal to or up to double the amount of sludge may be employed.  The separation may be promoted by the addition of substances presenting a large surface, such as lignite coke, active carbon, Bentonite, or bleaching earth in quantities of e.g. 3 per cent.  The resulting acid may be used without further purification for many industrial purposes.
Patent GB-524468-A (GB)
Title: Improvements in and relating to zig-zag sewing machines with suspended needle oscillating frames
IPC: D05B3/02
Filed: 1939-01-30
Abstract: 524,468. Sewing-machines; hinges. NAHMASCHINENFABRIK KARLSRUHE AKT.-GES. VORM HAID & NEU. Jan. 30, 1939, No. 3186. Convention date, Jan. 29, 1938. [Class 112] [Also in Group XXV] The vibrating needlebar frame 7 of a zig-zag sewing-machine is adjustably attached to a carrier 2, pivoted at 3, by a set-screw 13 engaging a spigot 5 on the carrier. The movement of the frame 7 is guided by flat sides at its lower end engaging flat faces 12 on the machine head. The needle-bar 16 is attached to its operating link 19 by a universal joint comprising a pin 22, having a transverse bore in which the needle-bar is secured by a set-screw, and a forked member 21 carrying the pivot stud for the link 19 and providing guide surfaces for the needle-bar.
Patent GB-543179-A (GB)
Title: Wheeled attachment for a plough or like cultivator attached to two wheel motor tractor
IPC: A01B63/16
Filed: 1940-02-21
Abstract: 543,179. Adjusting and supporting agricultural implements. CAUNT, W. T. Feb. 2], 1940, No. 3231. [Class 6 (i)] A wheeled attachment whereby a plough or cultivator operated by a two wheeled tractor may be supported, and which counteracts the engine torque, comprises a trailing wheel A attached to a shaft B which is free to move radially and vertically in a guide D which is secured to the plough. In the position shown, the plough is elevated and the shaft B is drawn down into the guide D in which it is retained by a locking lever E secured by a screw H. With the lever E moved aside, the shaft B slides into the guide D until stopped by a collar C, and the plough is at its working depth.
Patent GB-151888-A (GB)
Title: Improvements in or relating to apparatus for playing a war game
IPC: A63F3/00
Filed: 1920-02-03
Abstract: 151,888. Rod, A. E. D. B. Feb. 3, 1920. Board games.-Appliances for playing a game of mimic warfare consist of a hinged board having trenches 2, with parapets 3 at opposite sides of the board, and consecutively numbered playing-pieces 12. The board is formed with a central division 4, and the space between the trenches is divided into playing-squares. The rows of squares parallel with the trenches are marked with numerical values in the side columns 7.
Patent GB-633238-A (GB)
Title: Improvements relating to alternating electric current generators
IPC: H02J7/16
Filed: 1948-02-04
Abstract: 633,238. Alternators; electric supply systems. LUCAS, Ltd., J., and WINKLEY, A. W. Feb. 4, 1948, No. 3237. [Classes 35 and 38 (iv)] In an alternator and rectifier system used for charging a battery h, the alternator has two generating windings f, g which are normally connected in parallel and a switch j is provided for connecting one of the windings f in series with a control winding j for opposing the flux passing through the core e on which the other winding is wound. In the form shown the switch is operated by a voltage responsive electromagnet m and a further switch n coupled to the main switch is provided to make a momentary break in the battery connection whilst the switch k changes over. In a modification for manual operation this switch n is omitted. The control winding j may be connected through a reversing switch so that a boosting effect may be obtained if desired.
Patent GB-1451951-A (GB)
Title: Foam control substance
IPC: C11D3/00
Filed: 1973-01-22
Abstract: 1451951 Organopolysiloxane coated sodium perborate DOW CORNING Ltd 18 Jan 1974 [22 Jan 1973] 3248/73 Addition to 1378874 Heading C1A [Also in Divisions C3 C5 and Dl] A foam control substance comprises finely divided i.e. free flowing particles of sodium perborate surface coated with an organopolysiloxane antifoam composition. The sodium perborate may be of the type incorporated into detergent compositions as a bleaching agent. Generally the antifoam compaction comprises a diorganopolysiloxane, e.g. dimethylpolysiloxane in admixture with a finely divided inorganic filler, e.g. silica and aluminium oxide. The foam control substance may be made by mixing the sodium perborate and antifoam composition in, e.g. a ribbon blender. In order to retain the free flowing nature of the foam control substance the proportion of antifoam composition should not exceed 29% by weight of the weight of the sodium perborate. The foam control substances are useful as foam control agents in aqueous systems and, in particular, they may be incorporated into detergent compositions of the powder type where they function to control the amount of foam generated during washing (see Division C5).
Patent GB-1044872-A (GB)
Title: Fuel cells
IPC: H01M8/08
Filed: 1964-01-24
Abstract: 1,044,872. Fuel cells. SIEMENS-SCHUCKERTWERKE A.G. Jan. 24, 1964 [Jan. 26, 1963], No. 3256/64. Heading H1B. The oxygen electrode of a fuel cell is made of an electronically conducting material specifically pervious to hydrogen.
Patent GB-144350-A (GB)
Title: An improvement & appliance enabling the tunnel or air chamber of boilers used in cooking ranges & fire grates for circulating hot water to be cleaned when the range or grate is in use without drawing or disturbing the fire
IPC: F24C13/00
Filed: 1919-02-11
Abstract: 144,350. Heard, H. A. Feb. 11, 1919. Gratings for preventing choking of boile.r flues; ashes, removing.-Relates to gratings for the front ends of the flues of the saddle boilers of kitchen ranges, and to a construction of the floors of these flues designed to enable them to be cleared without disturbing the fire. Figs. 1 and 3 show the front end of a saddle boiler. The floor is cut away to form a channel A with a sloping floor, the front end of which is lower than the underside of the rear end of the bottom grate of the fire-box. The front end of the boiler flue is closed by a grating D. which is supported by brackets C secured by setting wedge-shaped projecting parts between the boiler and its foundation. This grating may be replaced by a grid, Fig. 5, consisting of a base E and three prongs F secured in the base by inserting the reduced lower ends of the prongs F into a slot in it, and driving wedges H between them. The front end of the channel A may be closed by a shutter suspended by its pivots in the holes a in the brackets C, Fig. 1. Reference has been directed by the Comptroller to Specifications 939/08 and 1349/13.
Patent GB-1217532-A (GB)
Title: Improvements in or relating to video recording
IPC: H04N5/782
Filed: 1968-01-22
Abstract: 1,217,532. Television recording and playback. IIT RESEARCH INSTITUTE. 22 Jan., 1968 [3 April, 1967], No. 3296/68. Heading H4F. [Also in Divisions G4-G6] A source of video signals has a variable scan rate, the signals are recorded on a track parallel to the direction of motion of a magnetic record member carrying the track at a variable speed past a stationary magnetic transducer, and the scan rate and record speed are changed during recording, so that playback at a standard record speed produces, on a television display device working at a standard scan rate, a display including a sequence in fast or slow motion. A rerecording system using the same principle is described (Fig. 3).
Patent GB-414722-A (GB)
Title: Improved indiarubber cover for handles
IPC: B62K21/26
Filed: 1933-02-03
Abstract: 414,722. Hand - irons. ENTWISLE, J., St. Albans, Broadway, Letchworth, Hertfordshire. Feb. 3, 1933, No. 3393. [Class 138 (ii).] A hand grip or cover for the handles of electric irons comprises an external layer of crepe rubber and an inner layer or filling of sponge rubber. As shown, the grip comprises an inner tube 1 of crepe rubber, an intermediate layer or filling 2 of sponge rubber extending wholly or partly around the grip, and an outer tube 3 of crepe rubber. The tubes 1, 3 extend beyond the layer 2, and are joined together at 4, 5 to prevent access of water to the sponge rubber. A disc 6 of crepe rubber closes one end. The tubes 1, 3 are made from flat sheets, the longitudinal seams of the tubes so formed being arranged on opposite sides of the grip. The grip may be reinforced by one or more plies of canvas.
Patent GB-1206192-A (GB)
Title: Wetting process
Inventor: EMARY ROBERT J
IPC: G01N21/03
Filed: 1967-10-12
Abstract: 1,206,192. Treating fluorinated ethylene polymer surfaces. GILFORD INSTRUMENT LABORATORIES Inc. 12 Oct., 1967 [27 Oct., 1966], No. 3405/70. Divided out of 1,206,191. Heading C3P. The wettability of a fluorinated ethylene polymer workpiece surface is increased by reacting it with a solution containing an alkali metal naphthylate, rinsing the surface with water and cleaning the surface with dichlorodifluoromethane. The preferred naphthylate is sodium alpha-napthylate and the preferred polymer is polydichlorodifluoroethylene. Preferably the workpiece is immersed in a solution containing sodium alpha-naphthylate, rinsed in water and the excess water drained therefrom, cleaned in a bath of liquid dichlorodifluoromethane which is being subjected to ultrasonic vibrations and further cleaned by passing dichlorodifluoromethane vapour around it.
Patent GB-1167444-A (GB)
Title: Electric Tooth-Brush
IPC: A61C17/22
Filed: 1968-01-23
Abstract: 1,167,444. Electric toothbrushes. BRAUN A.G. 23 Jan., 1968 [26 Jan., 1967], No. 3459/68. Heading A4K. [Also in Division H1] A casing 1 serving as the handle of an electric tooth brush encloses a motor 2, a driving mechanism 4 and a magnetic motor control switch 6 which has its actuator 15 on the outside of the casing. The driving mechanism 4 converts the rotary movement of the motor 2 to an oscillating movement. The switch actuator 15 includes a permanent magnet 16 which acts on ferromagnetic material or a permanent magnet forming part of the switch contacts.
Patent GB-279018-A (GB)
Title: Improvements in or relating to toothbrushes
IPC: A46B5/00
Filed: 1927-02-08
Abstract: 279,018. Galland, C. A. Oct. 13, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Boxes combined with brushes.-The stem of a toothbrush is pivoted to a handle which is in two or more parts hinged together and is adapted to serve as a casing for the brush when the latter is turned inwardly about its pivot. In the construction shown in Fig. 1, the stem 11 of the brush 12 is pivotally connected to a crank member 8 which is secured to part 2 of a casing in three parts 1, 2, 3, hinged together. The casing when closed may form a handle for the brush when in use or a housing for the brush when the latter has been folded inwardly. In the construction shown in Fig. 7 the casing comprises two parts 1<1>, 3<1>, hinged together, and a part 2<1> integral with the part 1<1>. A cranked member 8<1> secured to the part 2<1> is adapted to bear against the stem of the brush and to co-operate with grooved portions of the casing whereby the brush is held rigidly in either its extended or folded position.
Patent GB-494552-A (GB)
Title: Improvements in and relating to piston rings
IPC: F16J9/08
Filed: 1938-02-04
Abstract: 494,552. Piston-rings. SOC. ANON. A. SAURER. Feb. 4, 1938, No. 3625. Convention date, Feb. 4, 1937. [Class 122 (i)] A ring d is provided with resilient axial annular extensions h, i adapted to bear on the cylinder wall and piston wall respectively. Extension h may be of slightly greater or less diameter than the cylinder wall. The ring may be slit or continuous and may be used as a compression or oil scraper ring. Extension i may be formed separately as a continuous ring and welded or shrunk on the part d, h which is formed as a split ring. The lower portion of the ring is recessed to provide clearance k.
Patent GB-578996-A (GB)
Title: Improvements in and relating to aerodynamic balancing of airscrews
IPC: B64C11/00
Filed: 1942-03-18
Abstract: 578,996. Gauging-apparatus. MILNER, H. L. March 18, 1942, No. 3636. [Class 106 (ii)] [Also in Group XXXIII] Apparatus for use in balancing airscrews by the method described in Specification 578,993, [Group XXXIII], comprises a chart 28 adjacent to which is mounted a blade 10 to be tested. A number of indicators 29 on the chart represent, for each of a number of stations along the length of a master blade previously arranged in the position of the blade 10, the angle between the zero lift line of the blade section at that station, and a datum line such as the flat face of the blade at a position. 7 of the length of the blade from the propeller axis. A gauge 30 of the form described in Specification 578,994 is applied to the blade 10 under test at the corresponding stations and the angle between the zero-lift line and the datum line indicated on the chart, e.g. by a beam of light 32. Means are provided at each station on the chart movable in accordance with the deviation of the latter indications from the master indicators 29 and these movements are automatically integrated and shown on a scale. For this purpose, the indicators 29 are adjustable and their movements operate a cord passing round pulleys and carrying an indicator 45 co-operating with a scale 46. The cord is preferably a metal ribbon and to compensate for temperature variations, the scale 46 is carried by a similar ribbon 49. The indicators may be connected to levers 52 carrying the pulleys 54 or may directly carry the pulleys.