baber/WOPTO huggingface dataset:
Patent GB-908119-A (GB)
Title: A new or improved sealing ring
Inventor: GOODMAN HUGH FREDERICK
IPC: F16L19/03
Filed: 1958-02-05
Abstract: 908,119. Pipe joints. A.P.V. CO. Ltd. Feb. 4, 1959 [Feb. 5, 1958], No. 3728/58. Class 99(1). [Also in Group XXVI] A pipe joint is sealed by a packing ring 1 made of nylon and having a T-section, the stem 2 of the ring being compressed between the pipe ends 3, 4 and the ends 5 of the cross limb embracing spigots 6 on fittings 7 secured to the pipes which are drawn together by a clamping ring 8.
Patent GB-442696-A (GB)
Title: Improved process for refining lead
IPC: C22B13/06
Filed: 1935-02-06
Abstract: Lead is refined in a rotary tube furnace which may be heated, e.g. by coal or oil, at one end, the combustion gases which pass through the tube effecting oxidation of the surface of the lead. The lead oxide so formed passes under the metal bath and effects oxidation of metal impurities with the liberation of lead.  The oxides obtained may be subsequently worked up into alloys by reduction with carbon.
Patent GB-749050-A (GB)
Title: Improvements in or relating to propellant supply systems for jet reaction motors
Inventor: KRETSCHMER WILLI
IPC: F02K9/50
Filed: 1952-02-13
Abstract: 749,050. Jet propulsion plant. MINISTER OF SUPPLY. Feb. 10, 1953 [Feb. 13, 1952], No. 3891/52. Class 110(3) In a jet reaction motor, fuel, such as kerosene, and oxidant, such as hydrogen peroxide, from containers (26 and 27) are fed to a combustion chamber (30) under pressure from a fluid in a vessel (11), a main valve (18) lying between the pressure source and said containers and opening automatically when the pressure on the outlet side reaches a given value less than that on its inlet side, the main valve being by-passed by a restriction (21) controlled by a starter valve (20). Opening the starter valve causes fuel and oxidant to be supplied to, and ignited in, the chamber 30, whereupon the pressure on the outlet side of the valve 18 rises to a point where the valve opens. To close the valve an explosive valve 17 may be operated. The type of main valve employed is described in Specification 706,637 [Group XXIX]. Two or more similar main valves may be provided, operating at different pressures so as to give several stage running.
Patent GB-957663-A (GB)
Title: Mould for the production of reinforced concrete units for building facades
IPC: B28B7/02
Filed: 1963-01-30
Abstract: 957,663. Moulds for concrete. ENTREPRISES BALENCY & SCHUHL S.A. Jan. 30, 1963 [Nov. 20, 1962], No. 3900/63. Heading B5A. A mould for the manufacture of facade units of reinforced concrete includes a rectangular base pivotal between a horizontal moulding position and a vertical unloading position, two longitudinal and two transverse liners disposed on the base and heating means passing through the base which comprises a thin rigid panel resting on a support frame. The frame 20, Fig. 4, comprises a flat smooth iron sheet 22 stiffened at its edges by steel plates 28 and placed on a frame of U-sectioned bars 21 and rectangular sectioned elements 23, 24 supported on four corner uprights in such a way as to be pivotal about a horizontal axis defined by a jack (not shown). Heating tubes 25, are located below the panel 22. The shape of the panel to be moulded is defined by four liners and is shown in Fig. 1. The front longitudinal liner 42, Fig. 4, is pivotally mounted to the front of the frame and may, as shown, co-operate with a removable part 52 to define the shape of the front or top edge. The lifting hooks 6 are inset during moulding and are retained by fasteners 51. The near or bottom edge of the panel is defined by a two piece liner 59, 60, both pieces being pivotally mounted. The side edges of the panel are defined by hollow sheet metal liners 79, Figs. 5 and 7, having projecting ribs defining jointing grooves in the panel sides. Locating projections 49, 69, Fig. 4, on the liners 42, 60 respectively engage notches in the tops of the side liners.
Patent GB-348038-A (GB)
Title: Improvements in perpetual calendars
IPC: G09D3/08
Filed: 1930-02-05
Abstract: 348,038. Calendars. HANROTT, H. C., 91, Petty France, Westminster. Feb. 5, 1930, Nos. 3960 and 11703. [Class 106 (iv).] A calendar comprises a month sheet viewable through an aperture 3 in a casing 1, Fig. 1, and a transparent cancellation disc 4 mounted to rotate between the front wall and the month sheet and provided with a series of interrupted concentric circles 5<1>, Fig. 2, forming cancelling lines to cross out the days expired. The month sheet 5 may be removably positioned between the front and back wall being inserted through a slot formed in one side or the month sheet may consist of a rotatable disc and have the names of several months grouped as shown in Fig. 6, concentrically with the axis of the cancellation disc. The cancellation disc is adjusted by means of a knob 7 extending through the front wall. For desk use the height of the calendar may be diminished by bending the lower part of the disc and month sheet as shown in Fig. 3, the parts being housed in an attachment 9 forming a base or stand for the calendar. The rear of the front wall is provided with recesses 10 for the reception of the backplate 2, Fig. 4, and has lugs 11 to facilitate positioning of the month sheet. The back-plate 2 is retained by suitable catches and has mounted thereon a disc 6 bearing the month names viewable through slots 14 in the month sheet. A finger slot 12 is provided for adjusting the name disc. The casing at its base may be fitted with a pen rest.
Patent GB-1376115-A (GB)
Title: Nematogenic compositions
IPC: C09K3/00
Filed: 1973-01-26
Abstract: 1376115 Liquid crystal compositions MERCK PATENT GmbH 26 Jan 1973 [26 Feb 1972] 3995/73 Heading C4X A known nematogenic material contains as an additive 0À001 to 2% by weight of at least one carboxylic acid of the formula and/or ar least one salt thereof, in which Y is -R 1  or n is 0 or 1, R 1  is an alkyl or alkoxy radical with 6-18 carbon atoms or an acyloxy radical with 4-18 carbon atoms when n is 0, R 2  is an alkyl, alkoxy or acyloxy radical with up to 18 carbon atoms, R 1 =R 2  when n is 1, and X is a halogen atom (chlorine). The group A may be common to the additive and at least one of the compounds constituting the nematogenic material. The additive cation may be an alkali metal, an alkaline earth metal or a tetra-substituted ammonium or phosphonium cation. The nematic material may include an isomeric pair of compounds and/or a eutectic mixture of compounds, the compounds having the formula where A is as defined above, R 1  and R 2  are alkyl, alkoxy or acyloxy with up to 18 carbon atoms and may be the same or different. The modified nematic material readily assumes a homotropic alignment at a boundary surface, either after heating to the clear point and cooling, or often with the omission of such steps, and may be used in electro-optic, e.g. display, devices ex-  hibiting dynamic scattering. In the unenergized state the homotropic alignment prevents the appearance of streaks (which lower the contrast), and reduce the visible intensity of the inherent colouring of certain nematic compounds, for example epoxybenzene derivatives. The inclusion of the carboxylic acid salts allows the conductivity of the composition to be controlled.
Patent GB-268301-A (GB)
Title: Improvements in or relating to the manufacture of zinc oxide
IPC: C22B19/34
Filed: 1927-02-12
Abstract: 268,301. New Jersey Zinc Co., (Assignees of Singmaster, J. A., Breyer, F. G., and Bunce, E. H.). March 27, 1926, [Convention date]. Zinc oxide.-Zinciferous and carbonaceous materials are heated to reduce the zinc compounds and volatilize the metallic zinc which is next oxidized, the resulting gases with zinc oxide in suspension being then conveyed to a zinc oxide collecting means and meanwhile maintained at not less than about 125‹ C. until the gases are separated. Fuel briquets such as coal are fed at 11 on to a perforated travelling grate 13 and fuelore briquets are fed into a chute 16 in a chamber 17 heated by gases in pipes 18, 19, 20 from a fuel ignition chamber 14, the level of the briquets being adjusted by members 12, 21. Air is passed up through the grid 13 and regulated so that substantially non-oxidizing conditions are maintained above the briquets. The zinc vapour and burnt gases pass up through outlets 23 into nozzles of gas compartments 24 where the zinc is oxidized and immediately cooled bv a regulated a.ir blast 26 to preferably 500‹ but not above 700‹ C., the oxide being drawn by a fan 30 through the hood 28 and pipes 29, 32, 33 into asbestos filter bags 35 and hoppers 36. Beyond the main chamber 22 is a chamber 39 where it is difficult to maintain a non-oxidizing layer above the charge, and whence the gaseous products are drawn through a pipe 41. The pipe 43 communicates with the air. The zinc oxide is thus substantially freed from sulphur compounds. Other forms of furnace may be used, and the ore need not be briquetted. Specifications 149,927 and 219,423 are referred to.
Patent GB-438105-A (GB)
Title: Method of cleansing or refining oils and other materials
IPC: C10M175/00
Filed: 1934-02-07
Abstract: A method of purifying or regenerating hydrocarbon or fatty oils, especially lubricating oils, ceresin, paraffin, montan and other waxes, brown coal and pit coal tars and tar oils, resins, resin pitches, resin oils, and turpentine and pine oils, comprises stirring in small quantities of a solid thiosulphate followed by small quantities of concentrated sulphuric acid, and neutralizing the oil &c., preferably after separation from the sludge produced, with alkaline reacting substances such as soda lye, calcined soda, potash, borax, lime, chalk with or without small quantities of oxidizing agents such as sodium bichromate or permanganate.  In treating petroleum, naphthenic acids may first be neutralized by treatment with alkali or alkaline solutions.  A salt of an organic acid such as sodium formate or acetate may be added with the thiosulphate. Example: 1000 kg. of dirty lubricating oil are treated in an open vessel with 40 kg. of ground crystallized sodium thiosulphate and then 20 kg. of concentrated sulphuric acid are stirred in; after standing some hours, the oil is separated from the sludge and stirred with 10 kg. of soda lye and 5 kg. of calcined soda or potash.
Patent GB-585310-A (GB)
Title: Improvements in or relating to electrical contact terminals and switches
IPC: H01R4/36
Filed: 1945-02-19
Abstract: 585,310. Switch contacts. SMART & BROWN (ENGINEERS), Ltd., SPIVEY, W. H., and PACKMAN, P. J. Feb. 19, 1945, No. 4133. [Class 38 (v)] [Also in Group XXXVI] A terminal contact for switches and accessories comprises a substantially U-shaped metal element, with the upper part of the bend a<2> flattened to form a contact surface. Mounted in slots between the legs a<1> is a bridge piece b carrying a set screw d, which secures the supply conductor c, by pressing it into a recess formed inside the bend, for example, by a tongue a<4>. The device is inserted from below into an insulating base g, which it grips by the resilience of the legs, and is positively retained by the resilient tongue a<4> snapping over the shoulder g<1>. If the material is not resilient, the tongue is pressed out after assembly. Prior to manufacture, the whole or part of the terminal contact may be coated with non-oxidizing metal such as tin, gold, or silver. The element may be stamped, or punched from strip copper, phosphor bronze, or brass, or cast or machined from rod, and may alternatively be moulded in the base. In Fig. 1 (not shown), the tongue a<4> is dispensed with, and the bridge b inserted at an angle to the ends of the legs.
Patent GB-1196961-A (GB)
Title: Apparatus for Moving Articles
Inventor: HOLMES GORDON DAVID
IPC: B21B39/00
Filed: 1967-01-27
Abstract: 1,196,961. Reciprocating conveyers. DAVY & UNITED ENG. CO. Ltd. 26 April, 1968 [27 Jan., 1967], No. 4142/67. Heading B8A. [Also in Division B3] Apparatus for moving rolled steel sections from an inlet table to a cooling bed includes a number of movable carriages 1, each of which has a retractable finger 11 for engaging a section, the carriages being driven by draw bars connected to a common line shaft, but having individually adjustable strokes. Each carriage slides on fixed rails and includes a frame 4 which both carries a finger 11, and through which a draw bar 5 passes. The bar is connected by a continuous rope to the line shaft, so that operation of the shaft drives the bars, and hence the carriages, in opposite directions. As the bar is drawn to the right, the bar passes through the carriage until an adjustable stop 8 contacts the carriage, the finger being in its normal, upright, position. The several fingers of the carriages engage a section at different moments according to the positions of the stops 8 on respective notches 9. The tendency for a section to bend when cooling can then be counteracted by imposing an opposite bend on the section as it is dragged by the fingers across the cooling bed. When the draw bars are reversed, a pin on each bar retracts the finger 11 and an abutment 7 moves the carriage back to its starting position.
Patent GB-673398-A (GB)
Title: Improvements in or relating to machines for cleaning fish
IPC: A22C25/14
Filed: 1950-02-20
Abstract: 673,398. Gutting fish. ARENCO AKTIEBOLAGET. Feb. 20, 1950 [Feb. 26, 1949], No. 4292/50. Class 28 (ii). In removing the liead and attached entrails of a fish, side cuts are first made in the neck and the fish is then rolled over against one cutting edge to continue one of the side cuts round the back of the neck to the other cut but leaving the entrails uncut. A fish placed transversely on a table 10 with its head resting on one of the angle plates 24 of a conveyer chain 2 is moved sideways by the plate 24 and the impellers 3 of other conveyer chains 1 so that its neck slides along between converging cutting edges 21, 22 to receive the side cuts. When the chains 2 move around the sprocket 23 the attached angle plate 24 tilts to bring the back of the neck up against an extension of the upper cutting edge 22 to continue the cut. The fish body is yieldingly held back by rubber fingers 11 while the head is conveyed along and down by the plate 24. In continuing the conveying the body lies on one side of a fixed plate 9 while the cut head is on the other side and eventually slides down and drops away from 25 so pulling' out the attached gut. The rubber fingers 11 are carried to a pivoted holder 12 which is yieldingly retained by a tension spring until the conveying push of the fish overcomes the resistance. Any remaining gut is gripped and pulled out further along by a transverse pair of fluted rollers 18, 19. Specification 477,725 is referred to.
Patent GB-1519661-A (GB)
Title: Liquid level gauge
IPC: G01F23/24
Filed: 1976-02-04
Abstract: 1519661 Detecting the presence or absence of liquids electrically H F EDWARDS 4 Feb 1976 [12 March 1975] 04422/76 Headings G1H and G1N A device for indicating the presence or absence of either dielectric or conductive liquid is adapted to measure either the conductive or capacitive properties of liquid. Probe construction, Fig. 2 An oil-water storage tank, Fig. 1 (not shown) has disposed therein at three different levels (air, oil, water) a respective detector 12 which is screwed by portion 21 on to a vertically depending pipe. Sealed housing 16 has mounted therein on screws 44, 46 printed circuit boards 60, 62 carrying the circuitry and connected to remote power supply and indicator/alarm circuits via wires coupled by plug 84 to contact receptacle 78. At the lower end (in position in the tank) of the housing 16 two concentric electrically conductive tubes 36, 38 are mounted and electrically connected to the circuitry in the housing 16. Circuitry, Fig. 6 An astable multi-vibrator 100 powered from a regulated and filtered D.C. signal on line 98 has its output connected via 102 to the outer tube 38, and produces at 102 either a squarewave signal or, if reset terminal 101 is grounded so that the multivibrator stops, a ground potential. The inner conductive tube 36 is coupled via a rectifier and filter circuit 116, 118, 120 to the gate of F.E.T. 126 the source 133 of which is coupled to two digital comparators 142, 144, the outputs of which are connected to respective indicators 160, 158. When the probe is at the top of the tank so that tubes 36, 38 are in air the A.C. squarewaves at 102 are capacitively coupled across the tubes and there will be a D.C. on line 136 which is applied simultaneously to inverting and non-inverting inputs 138, 140 of comparators 142 and 144 and which is such as to exceed the reference voltage from 150. The output on line 154 is in a 'I' state and that on line 156 is 'O'. If the level of oil rises so that the tubes 36, 38 are partially or fully submerged the magnitude of the A.C. signals coupled across the tubes 36, 38 increases and the voltage on line 136 increases such that the comparators 142, 144 change state and their outputs indicate a 'O' and 'I'. When the probe 12 is used in the middle, oil, part of the tank the plug 84 of Fig. 6 is replaced by a different plug, Fig. 7 (not shown) which earths terminal 101 so that the multi-vibrator 100 stops and the output on line 102 is at ground. The device now operates as a conductive probe so that when the tubes are immersed in oil line 154 is at a 'I' state and 156 at a 'O' state. If the level of the oil/seawater interface now rises so that sea water immerses the tubes the resultant lowering of resistance across the tubes results in a lower D.C. level on lines 122, 136 and the comparators will change their state.
Patent GB-260147-A (GB)
Title: Improvements in drum construction
IPC: B65D3/30
Filed: 1926-02-16
Abstract: 260,147. Marks, E. C. R., (Paper Makers' Chemical Co.). Feb. 16, 1926. Heads; lined casks.-Relates to barrels &c. of the type in which the head is provided with a peripheral rib which engages in a groove on the interior of the body and is secured by a reinforcing ring which fits over the end of the body while the inner wall thereof abuts the outer face of the head, a clamping wire passing around the body under the outer wall of the reinforcing ring. According to the invention the outer wall of the body and the reinforcing ring 5 are provided with an interfitting groove and rib 8 and a clamping ring R passes around the container in said groove. The head H is cut away at c to facilitate insertion. The inner wall of the ring 5 may be provided with an inturned edge which rests against the head H. The container may be provided with a metallic lining which is grooved to correspond with the internal rib 3 on the container.
Patent GB-370109-A (GB)
Title: Improvements in or relating to electric terminals
IPC: H01R4/36
Filed: 1931-02-13
Abstract: 370,109. Binding-posts. BRITISH ELECTRIC TRANSFORMER CO., Ltd. and SMITH, R., Hayes, Middlesex. Feb. 13, 1931, No. 4589. [Class 38 (i).] A pin or strip 7 is interposed between the wires 3, 3a, lying in a transverse hole 2 in the body 1 of the terminal, and the screw 5 and is formed at its ends to prevent it leaving the hole. The strip may be of half-round section and is retained in place by bending its end up into recesses 1a, lb. A locking-nut 6 of larger diameter than the head 5a of the screw 5 is provided. The body 1 is extended to form a fixing screw 8 or is threaded to receive the stem of a separate screw, insulating washers 10, 10a being employed.
Patent GB-308965-A (GB)
Title: Improvements in and relating to rolling mills
IPC: B21B25/06
Filed: 1929-02-11
Abstract: 308,965. Mannesmannr÷hren-Werke. April 2, 1928, [Convention date]. Rolling-mandrels.-Hot mandrels from a rolling-mill are lifted by a device h to ways i from which the mandrels are taken one by one by projections e on a pair of chains driven either by hand at g or mechanically in synchronism with the mill or otherwise. The mandrels are thus maintained spaced and cooling air has free access to every part of them. The mandrels pass by a shoot k to an incline 1 leading to a cooling trough m provided with lifting-means for returning the mandrels via the device h to the mill. The mandrels may if desired be under the control of the projections e during passage over the incline l.
Patent GB-161393-A (GB)
Title: Improvements in clips or holders for motor cycle stands
IPC: B62H1/04
Filed: 1920-02-16
Abstract: 161,393. Barnes, W. Feb. 16, 1920. Supports for motor-cycles are adapted to be retained in the raised position by a catch consisting of two plates a, b bolted to the mud-guard c, the spring plate b having a bent portion f, h which passes through an opening in the other plate a and serves as a rest for the cross-bar i when the stand or support is moved round into inoperative position. Both plates are recessed at J in order that the bar may be held securely.
Patent GB-930516-A (GB)
Title: Improvements in or relating to process timers
Inventor: MCGUIRK FRANCIS
IPC: H01H43/00
Filed: 1961-02-08
Abstract: 930,516. Washing-machines. CHAMBERLAIN & HOOKHAM. Jan. 24, 1962 [Feb. 8, 1961], No. 4661/61. Class 138 (2). [Also in Groups XVIII and XXIX] A washing-machine includes a process timer comprising two electric motors 17, 18 (Fig. 1) connected through a variable speed epicyclic gearing 16 to a pawl-and-ratchet mechanism which drives at least one cam 11. In the first embodiment the gearing 16 comprises two input pinions 19, 20 driven respectively by electric motors 17, 18. The pinion 19 is connected through gearing to a sun-wheel 25 of a epicyclic train, the other sun-wheel 28 of which is driven by pinion 21. Intermeshing planetary pinions 29, 30 are mounted in a cage 31 connected through gearing 32, 33 to an output pinion 34 which drives a gear 35 fixed to a cam 15 which actuates a pawl driving a ratchet-wheel 14 fixed to a shaft 13 on which is mounted a barrel 12 carrying cams 11. The cams 11 actuate a series of switches or valves to control the cycle of operations of the washing-machine. In the second embodiment the epicyclic gear train comprises one sun-wheel driven by one of the electric motors and an internally and externally toothed ring driven by the other motor, the planetary gears being connected to the output gears (Fig. 4, not shown).
Patent GB-126413-A (GB)
Title: Transporter Weighing Cranes.
IPC: G01G19/14
Filed: 1918-03-16
Abstract: 126,413. Avery, W. & T., Parnall, T. St. J. B., and Mitchel, F. G. March 16, 1918. Apparatus fitted to cranes.-The trolly of a transporter weighing- crane comprises a wheeled framework to which a housing for the operator, control mechanism and weight recording apparatus is rigidly secured, and a framework carrying the electromotors and other mechanism connected with the grab operating gear, the latter framework being suspended from the former by weighing levers. The housing 6 for the operator is formed integral with wheeled framework 4 and contains the motors 7 and con. trol mechanism 8 for traversing the trolly and the recording apparatus 9 of weighing apparatus which is preferably of the kind described in Specifications 4935/05, 13544/06, 15690/09, and 103,707. The framework 11 supporting the grab-operating mechanism is mounted on knife-edges 26 on four weighing-levers 27, which are supported by knifeedges 28 at their outer ends, in link bearings 29 suspended from the framework 4. The inner ends of the levers 27 are superposed and connected by links 30 to the forked end of a Y-shaped lever 31 which is mounted in the bracket 32 on the framework 4. The outer end of the lever is connected by a rod 33, lever 34 and a rod 36 to the recording-apparatus 9. The ends of the rod 33 have knife-edge connexions, and knife-edge stays 37 are introduced between the frameworks 4, 11. One end 38 of each stay is pivoted to the framework 4 and the other end works in a slot formed in a plate 39 secured to the other framework. The spindle 24, from which the grab is suspended, is supported midway between and beneath a pair of motor-driven winding-drums 20 by ropes 21, 22 oppositely wound on the drums.