baber/WOPTO huggingface dataset:
Patent GB-810556-A (GB)
Title: Improvements in or relating to electric coaxial plug and socket connectors
IPC: H01R13/646
Filed: 1955-07-12
Abstract: 810,556. Two-part couplings. PATON & CO. Ltd., and EVA, A. W. July 31,1956 [July 12, 1955], No. 20200/55. Class 38 (1) A plug particularly for coaxial cables comprising a pin contact 2 and an outer contact 6, forming part of a housing 1, the cable core 19 being soldered in the pin (or secured by a radial grub screw, not shown) while the outer braid 18a is clamped between a female 22 having a tapered part 24 and a metal ring 25, the cable being clamped between two (or more) externally tapered clamps 26 having spigots 27 fitting into keyways 16 in a web 15 of a locking ring 11 to prevent rotation of the clamps as they are tightened by an internally tapered clamping member 14 which screws into ring 11. The inner surfaces of the clamps may be grooved or serrated. A screw ring on the housing 1 is provided for attachment of the plug to a complementary socket, and an insulating washer 21 lies in a recessi n the ferrule 22. The pin 2 may be replaced by a socket contact and a rubber sleeve 27a may be provided round the cable as shown. If the cable has only a single conductor and no outer braid, the ring 25 is omitted.
Patent GB-583337-A (GB)
Title: Improvements in the construction of needle cylinders for circular knitting machines
IPC: D04B15/14
Filed: 1944-10-19
Abstract: 583,337. Knitting-machines. BLACKBURN & SONS, Ltd., G., and HARRIS, E. C. Oct. 19, 1944, No. 20213. [Class 74 (ii)] The needle cylinder A of a circular fine gauge knitting- machine has needle tricks formed by radially disposed strips C and spacing pieces D inserted in grooves B cut in the cylinder. The grooves are cut wide enough for each to accommodate two strips and one spacing piece. The strips C and spacing pieces D may be sweated into the.grooves.
Patent GB-1437763-A (GB)
Title: Pancake cooking machine
IPC: A47J37/04
Filed: 1974-05-08
Abstract: 1437763 Making pancakes ETUD SA 8 May 1974 [1 June 1973] 20269/74 Heading A2A In a machine for making pancakes, a quantity of mix is kept at substantially constant level 2 in a tank 1, a driving roller 4 and second roller 3 being partly immersed in the mix and rotating in the arrowed directions, Fig. 1. The mix adhering to the rollers at 5 and 5' accumulates at 6 and returns to the tank by flowing over the ascending film of mix shown at 7 and 7'. A cooking drum 8 heated to a suitable temperature is positioned so that the top of bead 6 comes into contact with and adheres to the hot surface. If the rollers 3 and 4 are moved apart while rotating, the bead 6 disappears, which stops the coating of the drum 8. Coating recommences when the rollers are brought together again. In a second embodiment, Fig. 2, the coating system is arranged at the side of the cooking drum and the roller 3 is of larger diameter than roller 4. In Fig. 3, the roller 3 is replaced by a fixed bar 9. In Fig. 4, the roller 4 is rotated in the opposite direction and the bar 9 is exposed to less infrared radiation from the cooking drum.
Patent GB-414218-A (GB)
Title: Manufacture of chromiferous dyestuffs
IPC: C09B45/48
Filed: 1933-07-18
Abstract: Chromiferous azo dyes are made by treating isolated chromium compounds of azo dyes an o-aminonaphthol sulphonic acid --> a naphthol which contain less than 1 atom of chromium for each group capable of being chromed, with an agent whose aqueous solution has an alkaline reaction, which term includes an alkaline agent that yields chromium.  They dye marine blue tints and may be applied according to the processes of Specifications 364,148 and 408,497. The starting chromium azo dyes may be obtained according to Specifications 269,522 and 316,231, [both in Class 2 (iii)].  In examples: (1) the dyestuff 1-amino-2-naphthol-4-sulphonic acid --> b -naphthol is dissolved in caustic soda and sugar, treated with Cr2O3, formic and oxalic acids and the isolated dyestuff boiled with caustic soda, filtered, neutralized with hydrochloric acid and salted out; the alkaline mixture may also be worked up by adding oxalic acid and hydrochloric acid to neutralize, boiling, filtering and evaporating to dryness; (2) and (3) the same dyestuff is chromed with chromium formate and the chromium compound heated with caustic soda with or without sugar; the dyestuff is isolated as in (1) and in the alternative method tartaric acid is used instead of oxalic acid.  An example of the dyeing process is given.  Other alkaline agents specified are caustic potash, ammonia, sodium carbonate, and alkali chromite. Specification 283,979, [Class 2 (iii)], also is referred to.  The Specification as open to inspection under Sect. 91 comprises also the following components: 2-amino-1-naphthol-4-sulphonic acid, 1-amino-2-naphthol-6-sulphonic acid, 1-amino-2-naphthol-4 : 8- or 4 : 6-disulphonic acid and 1-amino-2-naphthol-6-chlor- or 6-brom-4-sulphonic: a -naphthol, 8-chlor- or 5 : 8-dichlor-a -naphthol, and tertiary alkali phosphate and borax as alkaline agents.  In an example, the dyestuff 1-amino-2-naphthol-4-sulphonic acid --> a -naphthol is treated with chromium formate and the partially chromed dyestuff refluxed with caustic soda.  Further examples of the dyeing process are also given in which benzene sulphonic acid is added to a sulphuric acid dye-bath.  This subject-matter does not appear in the Specification as accepted.
Patent GB-679550-A (GB)
Title: Improvements relating to sawtooth waveform generators
Inventor: HUNTLEY KEITH GORDON
IPC: H03K4/43
Filed: 1949-08-04
Abstract: 679,550. Saw-tooth generating circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. July 17, 1950 [Aug. 4, 1949], No. 20281/49. Class 40 (vi). A linear saw-tooth wave is produced at the anode of a valve from a non-linear wave fed to the cathode by providing a time constant circuit in a negative feed-back path between the anode and control grid. In the circuit shown the non-linear wave is generated by charging a capacitor 1 and discharging it rapidly through a valve 4 and the wave is fed to the cathode of a valve 8 through a valve 6. The negative feedback path between the anode and grid of valve 8 includes a circuit 10, 11, preferably having a time constant equal to that of capacitor 1 and resistor 2. In an alternative circuit (Fig. 2, not shown) an output coil is provided in the anode circuit of valve 8 and a cathode follower is provided between the anode and the input of the feed-back capacitor 10.
Patent GB-790596-A (GB)
Title: Improvements in and relating to agricultural implements
IPC: A01B41/02
Filed: 1956-06-29
Abstract: 790,596. Agricultural implements. AKTIEBOLAGET OVERUMS BRUK. June 29, 1956 [July 2, 1955], No. 20281/56. Class 6(1). An implement for thinning rows of plants comprises a tool 1 movable laterally across the plant row in alternate directions, the tool being fixed in an arm 2 adjustably mounted in the end of a longitudinal shaft 6 mounted inside a tube 7 pivoted to the implement frame. As shown, a number of tools are mounted side by side and each shaft is provided with a downwardly directed crank arm 14 fixed to the shaft by a hub 16. The arms 14 are connected by a bar 15. One of the hubs is provided with an arm 17 pivoted to a crank pin 19 on a shaft 21 driven from a tractor power shaft through a shaft 23 and gearing 22. The implement frame is provided with groundwheels 24 and each tool is supported by a wheel 8 formed by two discs connected by narrow rods, the wheel 8 being mounted on a shaft 9 which is adjustably mounted on a holder attached to the tube 7.
Patent GB-1177394-A (GB)
Title: Improvements in cable terminations.
Inventor: KLASS WALTER CHARLES
IPC: H02G15/068
Filed: 1967-05-02
Abstract: 1,177,394. Gable terminations. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 1 May, 1968 [2 May, 1967], No. 20283/67. Heading H2E. An elastic sleeve 6 containing silicon carbide clings to insulating material 2 and the end of a conductive screen 3 at the end of a cable. The sleeve may contain 100 parts by weight of rubber and/or ethylene propylene rubber to 200 of silicon carbide and 20 of carbon black. A layer 7 of silicone gum prevents air spaces.
Patent GB-813889-A (GB)
Title: Siloxane adhesive compositions
Filed: 1957-06-27
Abstract: A cold curable siloxane adhesive consists essentially of one or more polysiloxanes having from 1 to 3.5 per cent by weight of Si-bonded OH groups and containing from 4 to 20 mol. per cent of diphenylsiloxane units, the remaining siloxane units being substituted with lower alkyl or phenyl radicals, in such proportion that (1) the ratio of total hydrocarbon radicals to Si atoms is from 1.04 to 1.6 inclusive, and (2) there is from 4 to 65 mol. per cent of phenylsiloxane units in the siloxane(s), and a siloaxne resin curing catalyst and/or curing agent.  Curing catalysts specified are tetramethyl- and benzyltrimethyl-ammonium butoxides; b -hydroxyethyltrimethylammonium - acetate, and hydroxide; di- and tri-ethanolamines and amylamine; dibutyltindiacetate, stannous and ferric octoates, lead and cobalt naphthenates, potassium acetate, indium stearate; sodium butoxide, potassium isopropoxide and caesium methoxide.  Curing agents specified are MeHSiO, C2H5H SiO, HSiO3/2, C6H5HSiO or copolymers thereof with other siloxanes and/or alkylpolysilicates such as ethyl, methyl or isopropylpolysilicates.  The siloxanes and catalyst and, if desired, solvent are merely mixed together and allowed to dry at room temperature.  Examples are given.  Uses.-For bonding silicone resin coated glass cloth, mica, glass and electric coils.
Patent GB-282342-A (GB)
Title: Improved method of and apparatus for preparing charges containing liquid fuel for use in internal combustion engines
IPC: F02M21/00
Filed: 1927-08-02
Abstract: 282,342. Marion Steam Shovel Co., (Assignees of Cowardin, S. P.). Dec. 15, 1926, [Convention date]. Cylinders receiving liquid fuel; spray carburettors. - A mixture of liquid fuel and air in the form of a " fog," in which the weight of the fuel-exceeds that of the air, is produced by a nozzle which comprises passages 18. 14, for the fuel and air, which are supplied at the same pressure, and a spindle 9 which operates simultaneously a valve 10, admitting fuel to an atomizing chamber 11, and a valve 12 allowing the " fog" of atomized fuel and air to escape into the cylinder. The air is admitted at 13 and through a chamber 24, the top of which is formed by a flexible diaphragm 35 attached to the spindle 9 so that air pressure tends to close the valves. The air is admitted to the chamber 11 through an annular chamber 15 and passages 16 tangential to the chamber 11. The direction of discharge is controlled by a fin 23. Pumps 27, 26 deliver fuel and air to the nozzles through pipes 29, 36, Fig. 3, the remote ends of which lead past stop valves 21, 22 to a pressure equalizing tank 28 containing a float 31. the interior of which communicates by a passage 37 with the interior of the tank 28; the float is connected by levers to a valve 35 which opens a return passage for the fuel to the pump when the air pressure in the tank 28 is less than the fuel pressure Compressed air for starting is stored in either a reservoir 34 or the top of the tank 28, the valves 22, 21 being closed on stopping. The fog is injected into the cylinders when the compression is low, e.g. 40 per cent of the maximum in the cycle, which may be between 150 and 400 1bs. per square inch, and ignited by self-ignition or spark. The Specification as open to inspection under Sect. 91 (3) (a) comprises also an air pump 26, Fig. 15 (Cancelled), with a piston having a displacement which is one two-hundredth part of the engine piston displacement and is driven from cams on a shaft 46 transverse to the main shaft, a finger 30<1> on the cross-head engaging the plunger of the fuel pump 27<1>; the fuel pump draws fuel from a reservoir through a pipe 26' and past a strainer 27'. Exhaust gas may be used instead of air to form the fuel fog. This subject-matter does not appear in the Specification as accepted.
Patent GB-134404-A (GB)
Title: Improved Means for the Disinfection of Telephone Instruments.
Inventor: SNOADEN ERNEST ALBERT BENBOW
IPC: H04M1/17
Filed: 1918-12-07
Abstract: 134,404. Snoaden, E. A. B. Dec. 7, 1918. Sanitary and hygienic devices.-A pneumatic spraying-device is operated on replacing the receiver upon its hook after each conversation. An arm l, attached to the movable element of the bellows h, is raised against the action of a spring k when the receiver c is removed from its hook d. The arm l is held in its raised position by a spring latch m from which it is disengaged when the receiver is replaced upon the hook d, thereby causing the bellows h to eject a spray of disinfectant from a reservoir e into the mouthpiece of the transmitter b. The bellows may be replaced by a chamber of compressed air in which case the hook lever operates a valve.
Patent GB-1474603-A (GB)
Title: Akonopik v method of manufacturing shaped building elements
IPC: C08L61/00
Filed: 1974-05-08
Abstract: 1474603 Shaped elements H MEINHOLD 8 May 1974 [8 May 1973] 20387/74 Heading C3N A method of manufacturing a shaped building element from a mixture of a mixture of an inorganic material comprising at least 80% by weight of sand having a moisture content of 5-8% by weight and a particle size of 0À008- 2 mm., a phenolic resin and a metal or alloy having a melting point below that of aluminium comprises shaping by pressing to form the building element and subsequently curing and hardening the shaped element at 40-450 C. The sand may contain 15-20% by weight loam. Preferred metals or alloys are Wood's metal (27% lead, 13% tin, 50% bismuth, 10% cadmium); an aluminium alloy (86% aluminium, 13% silicon, 1% iron); tin; or zinc. The mixture may additionally include an inorganic clay bonding agent of 160 to 80 microns, the phenolic resin being a single-stage phenolic resin having a viscosity of 3300-3700 cP. at 20 C. The weight ratio of resin to bonding clay in this embodiment is 2 : 1.
Patent GB-1355081-A (GB)
Title: Earth moving machines
IPC: B62D33/063
Filed: 1971-04-19
Abstract: 1355081 Tractors; endless track vehicles C VAN DER LELY NV 19 April 1971 [26 Jan 1970 5 Feb 1970 19 Feb 1970] 20424/71 Heading B7H [Also in Division El] A flat top tractor is propelled by a combination of four driven steerable wheels and driven endless track units that can be raised from or lowered into contact with the ground. The driver's cab is pivoted on the rest of the tractor about a vertical axis so that it can be swung to be clear of one side of the rest of the tractor if a wide piece of equipment is to be mounted on the flat top of the tractor.
Patent GB-1020347-A (GB)
Title: Improvements in or relating to systems for interconnecting outlets in a telecommunications exchange system
IPC: H01H63/00
Filed: 1964-05-19
Abstract: 1,020,347. Automatic exchange systems. SIEMENS & HALSKE A.G. May 19, 1964 [May 17, 1963], No. 20488/64. Heading H4K. [Also in Division H1] In a system of interconnecting outlets of a plurality of selectors, e.g. by multipling or grading, wherein the outlets are each terminated by a respective " standard " connection point, the latter are each provided with an adjacent " dummy " connection point and the interconnections are formed by connecting standard points of one selector to dummy points of another selector and by bridging dummy and/or standard points of each of the selectors. In Fig. 1, the outlets 10 to 18 of a plurality of selectors 1 to 6 are brought out to standard connection points 7 on a corresponding plurality of tag boards 9, there being a dummy point 8 adjacent each point 7. The leads to other apparatus are connected to the points 7. Jumpers 19 and 20 (and 21) are then used to interconnect standard and dummy points of respectively adjacent and alternate boards to provide the required grading. On each tagboard, jumpers 22 to 24, 25 and 26 are used for interconnecting respectively, dummy and standard, dummy and dummy, and, standard and standard connection points, whereby further grading or slipped multipling is obtained. The common multiples 45, 46 (Fig. 2, not shown), of a group of wiper switches may be broken as at T to provide the same facilities, the standard and dummy points 7 and 8 in this case being formed by the opposed ends of the broken multiple.
Patent GB-641146-A (GB)
Title: Improvements in turbine blades
Inventor: SMITH AUSTIN GEOFFREY
IPC: F01D5/18
Filed: 1948-08-03
Abstract: 641,146. Gas turbine blades. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. Aug. 3, 1948, No. 20512. [Class 110(iii)] Longitudinal passages for cooling fluid in gas turbine blades are arranged to provide a differential cooling such that a constant temperature obtains over any normal section. The Figure shows a rotor blade with cooling passages 2 more crowded at the leading and trailing portions where the absorption of heat from the working gas is greater. In an alternative, large holes, evenly spaced, are provided with finned cores or multi-start threaded cores which vary the cooling value of the several passages. The flow of coolant may be determined by metering constrictions in the passages. Reference has been directed by the Comptroller to Specification 651,830.
Patent GB-654539-A (GB)
Title: Improvements in or relating to soil-ridging machines
IPC: A01B39/14
Filed: 1948-08-04
Abstract: 654,539. Agricultural implements. DALE, S. Aug. 4, 1948, No. 20576. [Class 6(i)] A scarifying attachment to be fitted to a soil ridging machine of the type having a frame comprising front and rear horizontal crossbars 12, 13 formed with a series of holes 14 for the adjustable mounting of ridging ploughs 10, 11, comprises a pair of bars 15 mounted on the bars 12, 13, each bar 15 having a socket 16 for the adjustable mounting of a tine 17, a crossplate 21 being provided and having a tine socket 23. The bars 15 project forwardly from the bar 12 so that the tines act in front of the ridging ploughs 10, 11.
Patent GB-255660-A (GB)
Title: Improvements in methods of and apparatus for measuring the inductance of cables and conductors
IPC: G01R27/16
Filed: 1925-08-19
Abstract: 255,660. Standard Telephones & Cables, Ltd., (formerly Western Electric Co., Ltd.), and Mougey, W. E. Aug. 19, 1925. Reels.- A drum for testing a cable consists of a copper cylinder 3 with its ends situated in grooves in wooden end cheeks 1 clamped together by bolts 4. An internal wooden structure may be provided for supporting the copper cylinder 3. When an insulated cable is to be tested it is wound on the copper cylinder 3 which forms a short-circuited secondary of a step-down transformer when alternating current is passed through the conductor under test, and therefore has induced in it currents producing a flux which substantially neutralizes the flux due to the coiling of the conductor. For measuring the inductance of an uninsulated cable, the copper cylinder 3 is covered with a layer 7 of insulating material provided with a helical groove for keeping adjacent turns from contacting with one another.
Patent GB-173548-A (GB)
Title: Improvements in adjustable wrenches
IPC: B25B13/24
Filed: 1920-07-12
Abstract: 173,548. Leffler, A. July 12, 1920. Sliding-jaw wrenches.-Relates to wrenches of the kind having a fixed jaw, an adjustable jaw movable in a prismatic channel in the fixed jaw, and a locking-wedge tapering in the longitudinal direction of the channel, a spring tending to hold the wedge against the movable jaw, and comprises also the formation of the locking-wedge with stepped plane surfaces on its underside slidable on stepped plane surfaces on a wedgeshaped member secured to the bottom of the channel and with a rib on its upper side tapering in the upward direction of the channel and engaging a correspondingly-formed recess in the lower side of the movable jaw. The shank 1 is enlarged to form a head 2 carrying the fixed jaw 3 and provided with a prismatic guide 13, in the base of which is secured a wedge-shaped member. 11 formed with two stepped plane surfaces 10. The locking-wedge 6 is correspondingly stepped at 9 to slide thereon, and a spring 14 tends to keep the locking-wedge in constant contact with the lower side of the movable jaw 4. On the side facing the movable jaw the wedge is formed with a wedge-shaped rib 7 engaging a wedge-shaped recess 8 in the movable jaw. A push-plate 12 is secured on the end of the wedge for releasing the movable jaw, the angle of the wedge being so adjusted that the release may be effected by a gentle pressure with the finger.
Patent GB-811663-A (GB)
Title: Process for producing a storage grid assembly
IPC: H01J29/39
Filed: 1956-07-05
Abstract: 811,663. Cathode-ray storage tubes. HUGHES AIRCRAFT CO. July 5, 1956 [July 7, 1955], No. 20914/56. Class 39(1). A storage grid assembly for use in a directviewing storage tube comprises an electroformed target screen 10 and numerous patches of dielectric material 24, Fig. 5, e.g. magnesium fluoride, distributed uniformly over one side of the meshes of this screen. A process of fabricating such an assembly comprises the steps of disposing a malleable foraminous copper mask over one side of the target screen and pressing it into the interstices of the target screen, substantially without flattening the meshes thereof ; depositing dielectric material through the mask, preferably by heating the screen to about 300‹C. while the dielectric material is evaporated, passed through the mask, and condensed onto the meshes of the target screen ; and afterwards peeling away the malleable mask. As shown the mask had dimensions comparable with those of the nickel target screen but the thickness of the layer of dielectric material is substantially less than the thickness of the mask to avoid the formation of any bonds between the dielectric material on the mask 12, Fig. 3, and the screen 10. A thin sheet of the material known under the registered Trade Mark "Teflon" and a thick sheet of rubber are placed over the mask to provide a cushioning effect while the mask is pressed into the interstices of the target screen, the rubber sheet, the "Teflon" sheet, the mask and the screen being pressed together between two steel blocks. Specification 780,907 is referred to.
Patent GB-406330-A (GB)
Title: Improvements relating to closures for collapsible containers
IPC: B65D47/26
Filed: 1932-07-25
Abstract: 406,330. Collapsable containers. BELSEY, S., 36, Buckingham Gate, and CASSIN, P., 19, Eastcheap, both in London. July 25, 1932, No. 20942. [Class 11.] The integral sealing boss covering the extrusion aperture in the neck of a collapsable container is encountered by and partially or completely severed from the neck by a pivoted closure. As shown, the closure d is provided with a downturned lug d<2>, which limits its swinging movement, and a claw lug d<1> which, when the boss e has been severed by the cutting edge d3 of the closure, engages under a projection c<1> on the neck. To prevent accidental removal of the boss it is thickened, as at e<1>, so that before the edge d3 has reached the aperture f a shoulder g of the closure abuts against the boss, whereby a much greater effort must be applied to continue the cutting action. Specification 382,804 is referred to.
Patent GB-284155-A (GB)
Title: Blade-holder for use in stropping safety razor blades
IPC: B24D15/10
Filed: 1927-08-09
Abstract: 284,155. Boig, J. H. C. Aug. 9, 1927. Razors.-A blade holder for use in stropping &c. safety razor blades comprises a handle 11 with an extension 19 on which the blade 23 is positioned by projection 21 engaging the usual holes in the blade, and a sliding member 13 housed in the handle and slidable, by a button 14 projecting through a slot 15, into position over the blade. The sliding member has a groove 24 to give clearance for the heads of projections 21 and its end 16 is bevelled to engage an undercut socket 17 at the end of extension 19 to give a clamping action. The parts have the crosssection shown in Fig. 5 to ensure application of the edge of blade 23 to the strop &c. at the correct angle.