baber/WOPTO huggingface dataset:
Patent GB-199865-A (GB)
Title: An improved device for use in the preparation of sand and like moulds for producing castings
IPC: B22C17/10
Filed: 1922-04-13
Abstract: 199,865. Caley, E. C., and Holderness Plough Co., Ltd. April 13, 1922. Moulding-machines of the inverting-table type are provided with two mould-supporting frames or the equivalent so pivoted as to be turnable to a position face to face. The machine may be mounted on wheels as a portable unit. The patternplate N may be ribbed or otherwise formed to engage a frame D, pivoted at C. The frame A supports the plate and flask P during ramming. After ramming, the frame D and a frame E, adjustably mounted at e, E' according to the depth of the flask, are brought face to face, the frame E turning about an axis C<1>. During inversion the flask and pattern-plate are supported by extensions d, e<2> of the frames. Drawing is effected by lifting-bars j sliding in guides k as controlled by linkage M, G. L.
Patent GB-288526-A (GB)
Title: Improvements in gas cookers
IPC: F24C15/10
Filed: 1928-04-10
Abstract: 288,526. Heussler, J., and Braune, A. April 8, 1927, [Convention date]. Burners, arrangements of.-The hotplate a is heated by a group of burners h arranged with mutually converging nozzles partially surrounding, and outside the area of, the utensil opening. In the construction shown, five burners are arranged in independently-usable groups of two and three, and the mixing-tubes extend through passages formed in superposed insulating layers d, g and provided with liner tubes i. Secondary air passes through a pocket m and through the space between the tubes i and the mixing-tubes h, cooling the latter.
Patent GB-577180-A (GB)
Title: Improvements in and relating to the production of ammonium nitrate
IPC: C01C1/18
Filed: 1941-08-20
Abstract: 577,180. Crystallizing ammonium nitrate. WILKINS, F. J., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Aug. 20, 1941. No. 10611. [Class 32] The method described in Specification 577,179 of separating crystals of ammonium nitrate from a magma containing at least 30 per cent. ammonium nitrate by maintaining the magma in fluid form by the application of shear stress so that it can be conveyed as a liquid is carried out in a vacuum evaporator through which the magma flows preferably in film form. An 86 per cent. solution of ammonium nitrate at 138‹C. is fed as a jet tangentially into a vacuum evaporator maintained under a pressure of 0.15 atmos. where with evaporation of water the solution is converted into a magma containing 39 per cent. nitrate crystals, the temperature falling to 83‹C. The base of the evaporator is made in the form of an inverted cone of 60‹ solid angle and the magma flows down in film form to the exit pipe at a velocity above 10 ft. per minute into a centrifugal separator.
Patent GB-455498-A (GB)
Title: Improvements in and relating to the electrical reproduction of movement or displacement at a distance
IPC: G08B21/00
Filed: 1935-04-05
Abstract: 455,498. Distant - control systems. THOMAS, A. R., 21, Great Peter Street, Westminster. April 5, 1935, No. 10624. Drawings to Specification. [Class 40 (i)] In a system for reproducing rotary or linear motion at a distance, reversible stepping apparatus located at a distance is driven synchronously with the follow-up element of a primary member, the movement of which is to be reproduced. The primary member carries a contact which co-operates with one or other of two contacts operated by the follower and connected in circuit with the stepping magnets of the local and distant apparatus. When the primary member is operated one or other of the stepping circuits is closed in series with an impulse generator to drive the follower and distant apparatus until the circuit is opened by the follower. The follower and distant apparatus are operated by the stepping magnets through the intermediary of differential mechanisms. The impulse generator may comprise a gas discharge valve operating under the control of a condenser and resistance. Reference has been directed by the Comptroller to Specifications 4135 /87, [Class 40], and 130,162, [Class 40 (i)].
Patent GB-1096862-A (GB)
Title: Improvements in and relating to electric glassmaking furnace
IPC: C03B5/225
Filed: 1965-03-12
Abstract: <PICT:1096862/C1/1> In an electric glass-making furnace of the type described in Specification 953,953, the refining device consists of a single element 101 not connected to any source of voltage, element 101 being disposed between electrodes 11a, (11b) and (11c).  In a particular embodiment, element 101 is supported by glass withdrawal tube 27, parts 27 and 101 being of Mo.  Part 101 may be filled with Mo pieces 102, which enhance the collection and ascent of bubbles. The electrodes and rods (9a), (9b), (9c) may also be of Mo.
Patent GB-549406-A (GB)
Title: Improvements in automatic cut-off valves
IPC: F16K17/38
Filed: 1941-08-25
Abstract: 549,406. Valves. CROFT, C. M., and HERRIOTT, I. T. Aug. 25, 1941, No. 10822. [Class 135] An automatic cut-off device for controlling the supply of gas or other fluids comprises a valve member normally held away from its seat by a spring detent supported by a fusible plug or the like and adapted to yield when subjected to abnormal heat or shock due to explosions. In the form shown in Fig. 1, the valve member, which co-operates with a seat c at the bottom of the casing b, is in the form of of ball e of rustless steel. The ball is normally held in a side pocket d inclined at an angle of 45 degrees to the pipe line by a ball catch j loaded by a spring k supported by a fusible plug m adjustably screwed into the casing. A detachable cap n is provided to receive the melted plug. A second ball f of somewhat smaller diameter than the valve may be arranged to have a limited movement in the chamber at the back of the valve to increase the effect due to shock. The loose ball valve member may be replaced by a closed cylinder with flat or bulging ends. Modifications are described showing the inlet and outlet connections are arranged on horizontal axes and at right-angles to one another.
Patent GB-1369284-A (GB)
Title: Derivative of substituted pyrazolidine the preparation and use  thereof
IPC: C07D231/34
Filed: 1972-03-09
Abstract: 1369284 N - methylpiperazine/4 - n - butyl- 3,5 - dioxo - 1,2 - diphenylpyrazolidine equimolecular salt SERESCI SOC D'ETUDES ET DE REALISATIONS SCIENTIFIQUES SPRL 5 Feb 1973 [9 March 1972] 10931/72 Heading C2C  The invention comprises the title salt, and a method for making it by separately dissolving the components in the same solvent selected from ketones, ethers, esters and compounds C x H y Cl z  (x, y and z are respectively 1-3, 0-6 and 1-6), mixing the solutions, stirring at room temperature and filtering off and drying the precipitate. Therapeutic compositions for oral or rectal administration comprise the above salt, which has antiinflammatory and analgesic activity. The salt is stated to possess a number of advantages over the pyrazolidine derivative from which it is derived.
Patent GB-591679-A (GB)
Title: Improvements in and relating to lawn mowers and the like
IPC: A01D69/08
Filed: 1945-05-02
Abstract: 591,679. Lawn-mowers. QUALCAST, Ltd., and HAND, H. May 2, 1945, No. 11050. [Class 6 (ii)] A lawn-mower of the type including a rotary cutter and a shear blade D co-operating therewith has the shear blade mounted on rubber buffers or mounting blocks F disposed between the blade and sole plate C, one such block being disposed towards each end of the blade. The block F shown is annular in form and through it passes the screw E serving to secure the blade D to the sole plate. The block has a circumferential groove for receiving the blade, the provision of such groove serving to keep the blade spaced from the sole plate and thus to provide the resilient mounting.
Patent GB-382556-A (GB)
Title: Improvements in and relating to the refining of liquid hydro-carbons by means of liquid sulphur dioxide
IPC: C10G21/10
Filed: 1932-04-18
Abstract: <PICT:0382556/III/1> In the Edeleanu process the sulphur dioxide vapours from the pressure evaporators, and may be also from the atmospheric and reduced pressure evaporators, are freed from moisture and light oils by contact with the whole or part of the raffinate or extract flowing to the evaporator, the oils and water being removed from the final vapours by suitable separators and driers.  For example, extract or raffinate flows from a pipe 1 through a pipe 3 and a heater 9 to a pressure evaporator 10, part being byepassed through a pipe 5 to a scrubber 7 through which the sulphur dioxide vapours from the dome 11 of the evaporator 10 rise; the scrubbing liquid rejoins the main stream by a pipe 8; the dioxide vapours pass by a pipe 13 to a condenser.  The liquid is then passed in series through an evaporator 15 working at atmospheric pressure and a vacuum evaporator 22, and leaves through a pipe 26; the vapours pass through a pipe 16, or a pipe 23, compresser 24, and pipes 25, 16 to a cooler 17, oil separator 18, a drier 19, and then through a pipe 20 to a compresser for re-use.  The scrubber may be replaced by a trickling plate apparatus; either form of contact device may be arranged in the evaporator itself or the dome thereof.
Patent GB-1253700-A (GB)
Title: Improvements in or relating to electric current controlling devices
IPC: H01L45/00
Filed: 1969-03-03
Abstract: 1,253,700. Semi-conductor switching device. ENERGY CONVERSION DEVICES Inc. 3 March, 1969 [4 March, 1968], No. 11121/69. Heading H1K. A device consisting of a mixture of sulphur and a transition element disposed between ohmic contacts exhibits high resistance up to a threshold voltage. When this voltage is exceeded it switches rapidly to a low-resistance condition but reverts when the current falls below a holding valve. With A.C. switching occurs in each half cycle. The preferred material consists of 20-33À3 atomic per cent vanadium and the remainder sulphur. It is made by heating a mixture of the powdered elements for 24 hours at 400 C. in a sealed quartz tube. The resulting black powder can be used in that form, compacted into pellets, or applied in a paint or sputtered on to the electrodes which are suitably of graphite, niobium, tantalum, molybdenum or tungsten. The material is believed to be in an amorphous or crystalline polymeric form.
Patent GB-1074396-A (GB)
Title: Pressure relief device and shut-off valve
Inventor: PATON ROBERT
IPC: H01F27/14
Filed: 1965-03-16
Abstract: 1,074,396. Transformers. BRUCE PEEBLES INDUSTRIES Ltd., and R. PATON. March 14, 1966 [March 16, 1965], No. 11132/65. Heading H1T. [Also in Division P2] A shut-off valve 14 in the pipe-line from a conservator 12 to a transformer tank 11 is closed by hydraulic or electrical means when a pressure relief valve 16 of the transformer tank opens. A noise proof tank-enclosure 17 may be provided. The cover (18) of the relief valve (Fig. 2, not shown) lifts under pressure, compressing a spring (29) until a cam operator member (23) moves a cam (24) to release a latch (26) whereupon the valve cover (18) is thrown open by the spring (29) and the cam (24) operates a spring-biased hydraulic piston (31). Operation of the hydraulic piston (31) pressurizes a line 15 to a hydraulic piston (33), (Fig. 3, not shown) at the shut-off valve 14, movement of the latter piston (33) operating a sliding lockplate (35) and permitting the shut-off valve to close under the action of a spring (41). The shut-off valve is reset by hand.
Patent GB-149059-A (GB)
Title: Improvements in apparatus for mine-signalling and like purposes
IPC: B66B19/06
Filed: 1919-05-05
Abstract: 149,059. Allott, J. R. L., and Dean, E. May 5, 1919. Bell and gong signals.-Signalling-apparatus particularly adapted for actuating and re-setting signals used in colliery winding is operated by the action of falling metallic balls which also strike a gong to give an audible signal. When the signalling push C at the pit bottom or other point is depressed, current from the battery X passes through the contact maker Y and energizes the electro-magnet B, which releases the balls singly from a box A. A falling ball D strikes and depresses the actuating-lever E which operates the dial pointer F by pawl G and ratchet wheel H, the latter being moved one step for each ball released and held in position by the pawl and re-setting lever I. After the lever E has been depressed a predetermined distance, the ball rolls off the inclined surface of the lever and strikes a gong J to give an audible signal, and then passes by gravity into a vertical duct K. Specification 139,055, [Class 38 (v), Electric switches &c.], is referred to.
Patent GB-184835-A (GB)
Title: Improvements in apparatus for the supply of fuel in internal combustion engines
IPC: F02D1/00
Filed: 1921-04-18
Abstract: 184,835. Marks, E. C. R., (Akt.-Ges. f³r Tiefbohrtechnik und Maschinenbau vorm. Trauzl & Co.). April 18, 1921. Fixed-chamber apparatus; multiple-chamber apparatus; valve systems for; varying quantity measured in.-Fuel for an internal-combustion engine supplied by a pump to a pressure accumulator 3 passes thence to a measuring device. The rotary valve 26 places each of the chambers 20, 21, 22, 23 in turn in connection with the accumulator, fuel from which depresses the plunger 6, 7, 8 or 9 an amount determined by the eccentric 25. When the valve 26 has cut off communication with the accumulator, the fuel injection valve 31, 32, 33 or 34 appropriate to the chamber in question opens, and the plunger forces the fuel into the engine cylinder.
Patent GB-943656-A (GB)
Title: Expansible bags for use in respiratory apparatus
Inventor: PIERSON WILLIAM ALBERT
IPC: A61M16/00
Filed: 1961-03-28
Abstract: 943,656. Respiratory apparatus. BRITISH OXYGEN CO. Ltd. June 1, 1962 [March 28, 1961], No. 11299/61. Heading A5T. A rebreathing bag 1 of rubber has, for communicating with a breathing circuit, an opening 3 with a reinforced neck 2 and diametrically opposite the opening a hollow projection 4 having an integral closed end which may be severed to provide a record opening into which a hose adaptor may be introduced. A loop 5 is disposed on the projection.
Patent GB-747304-A (GB)
Title: Slotted cylinder antenna
IPC: H01Q21/00
Filed: 1954-04-20
Abstract: 747,304. Wave-guides. RADIO CORPORATION OF AMERICA. April 20, 1954 [May 13, 1953], No. 11346/54. Class 40 (8). [Also in Group XL (c)] An aerial comprises a tubular member having one or more slots in its wall and a conductive strip and plate disposed transversely inside the tube and centrally with respect to the longitudinal dimension of a slot, the strip being connected electrically at both ends to the tube and the plate being connected thereto at one end only and being angularly disposed to the strip. In one embodiment the tubular member 21 is cylindrical and contains one or more slots 23 in its wall parallel to its axis; a partial septum 25 extends the whole length of the tube 21 and is positioned as shown. Fig. 2 shows the resulting electric field distribution inside the guide (TE ¢ , 1  mode) where no slot energizing units are present. In order to cause energy to be radiated by the slots, strips 27 and plates 29 of conductive material are attached centrally with respect to each slot, these cause distortion of the field distribution as shown in Fig. 3 and energy is in consequence radiated by the slot. The load presented by the slot and by the strip and plate elements may be adjusted to provide a broad band termination when regarded jointly. In other embodiments partial septums 25<SP>1</SP>, strips 27 and plates 29 are arranged in independent halves of a divided cylindrical guide (Fig. 8) and in a triangular tube (Fig. 9, not shown). In a variation of these embodiments the partial septum is not used (Fig. 10, not shown, and Fig. 11). The slots 23 in the triangular tube are arranged at a corner. Ways of feeding a cylindrical tube from a coaxial line and from a rectangular guide energized in TE  1,0  mode are described with reference to Figs. 5, 6a, and 6b (all not shown).
Patent GB-441912-A (GB)
Title: Improvements in or relating to artificial resin plasticisers
IPC: C13B10/02
Filed: 1935-04-12
Abstract: Flexible resinous plasticizers are manufactured by chemically combining non-drying oils (i.e. oils having an iodine number not exceeding 100) with aliphatic polybasic acids containing not more than three carbon atoms between carboxyl groups, or anhydrides thereof, e.g. succinic, maleic, fumaric, glutaconic, itaconic, malic or citric acid, and with polyhydric alcohols, e.g. glycerol or glycols, in the substantial absence of drying oils, drying oil fatty acids and cyclic polybasic acids and their anhydrides, the non-drying oil being the major constituent of the mixture and the reaction being carried on until the product is soluble in toluene and miscible with nitrocellulose solutions.  Preferably, the polyhydric alcohol and the drying oil are first heated together in the presence of a metal oxide or hydroxide as catalyst, e.g. the hydroxide or oxide of an alkali or alkaline-earth metal or an oxide of lead, especially litharge, until the mixture is soluble in alcohol, and the product is then heated with the aliphatic polybasic acid.  When the polyhydric alcohol is glycerol, there is first formed a mixture of a monoglyceride and excess glycerol. The products may be used as plasticizers for nitrocellulose or other cellulose esters or ethers in lacquers for paper, fabrics, leather, felt, rubber, sheet metal, or ignition cables, and in plastic moulding materials.  The resins can be employed without the addition of liquid plasticizers.  In examples: (1) castor oil is heated with glycerol in the presence of litharge and the product is heated with maleic acid and a further quantity of glycerol; (2) palm oil is similarly reacted with glycerol and succinic acid, using sodium hydroxide as catalyst; (3) coconut oil is used as in (2), but with lime as catalyst; (4) palm kernel oil is heated with diethylene glycol in the presence of litharge and the product is heated with succinic anhydride and a further quantity of diethylene glycol.  Specifications 352,981, 360,173, 363,859, and 388,367 are referred to.  The Specification as open to inspection under Sect. 91 refers also to Specifications 316,914, [Class 2 (iii)], 356,340, and 359,365. These references do not appear in the Specification as accepted.
Patent GB-141924-A (GB)
Title: Improvements in night latches
IPC: E05B23/00
Filed: 1919-05-07
Abstract: 141,924. Gibbons, A. B. May 7, 1919. Night - latches; lever mechanism. - The bolt carries with it levers d which are slotted to allow the bolt to slide freely upon a atump f on the case when operated from inside. A flange i on the levers normally blocks the notch g in which the key engages for releasing the lock from' the outside, a second slot h in each lever coming opposite the stump when appropriately lifted.
Patent GB-1493073-A (GB)
Title: Process for the manufacture of a mixed polymerization catalyst
IPC: C08F4/60
Filed: 1975-03-19
Abstract: 1493073 Ziegler polymerization catalyst HOECHST AG 19 March 1975 [21 March 1974 9 April 1974] 11413/75 Heading C3P [Also in Division B1] Olefins are polymerized in the presence of a catalyst comprising (A) the reaction product of (i) a chromium (III) compound containing water of crystallization and (ii) a hydrocarbyl-oxide of a metal (including B and Si) in the ratio (i) : (ii) of 1 : 1 to 1 : 10, optionally supported on a carrier (iii), and (B) an organometallic actuator such as an organo-aluminium compound. Suitable compounds include (i) hydrates of CrF 3 , Cr 2 (SO 4 ) 3  and Cr(OOC.CH 3 ) 3 , (ii) Mg(Oct) 2 , Mg[Al 2 (OR) 8 ], LiH[Ti(OR) 6 ] and Mg[Zr(OR) 6 ], and (iii) Al 2 O 3 , CaSO 4 , kaolin, apatite, BaCO 3  and charcoal. Typical examples refer to the polymerization of ethylene and ethylene/ butene- 1 in the presence of hydrogen in diluents such as diesel oil or chloroform or in a bed of polyethylene and of the above catalysts, the catalyst component (A) being activated in some cases by heating or by addition of a pre-activation amount of an organo-aluminium compound.
Patent GB-454172-A (GB)
Title: Improvements in and relating to three pin plug-in electric switches
IPC: H01R13/447
Filed: 1935-04-13
Abstract: 454,172. Electric couplings. SANDERS & CO. (WEDNESBURY), Ltd., W., Falcon Electrical Works, Wednesbury, and WAITE, R. T., Porthmeor, Bescott Road, Pleck, near Walsall. April 13, 1935, No. 11461. [Class 38 (i)] Relates to a threepin plug-in switch of the kind in which the plug can be inserted only when the switch is in the " off " position. According to the invention, the switch has a rockable plate which co-operates with a trip mechanism controlling the switch arm, and the trip releases the switch arm when a plug with a standard earth pin is inserted in the sockets. The mechanism also moves the rockable plate to cover the live sockets if the plug is withdrawn while the switch is " on." The switch, shown in plan in Fig. 2 with the cover removed, comprises two live sockets 8, 9 and an earthed socket 10. The rockable plate 11 of insulating material, is pivoted on the earthed socket 10 and can be moved to cover the sockets 8, 9. A stop 14, carried at one end of a sliding arm 15, projects into an opening in the bottom of the socket 10, and the arm is pivoted at its other end to a trigger arm 16 pivoted on a support 17. The outer end of the arm 16 is provided with a projection 22 which can engage a projection 21 on the switch arm 20, and a spring 18, surrounding the support 17, urges the projection 22 towards the switch arm and also urges the stop 14 into the socket 10. The trigger arm 16 also has a pin 23 which engages a slot 24 in a link 25 pivoted to the plate 11, and a spring 26 urges the plate 11 and the arm 16 away from one another. When the switch is " off " and the plug is inserted in the sockets, the earth pin moves the stop 14 and swings the trigger arm 16 to the left and thus allows the switch arm to be moved to the " on " position. At the same time, the spring 26 is compressed. If the plug be withdrawn, the spring 26 swings the plate 11 to cover the live sockets 8, 9, as shown in Fig. 6, and so prevents the insertion of the plug again while the switch is " on." As soon as the switch is moved to the " off " position, the trigger arm 16 moves to the right, and the plate 11 is also moved to expose the live sockets and allow the insertion of the plug.
Patent GB-115277-A (GB)
IPC: B62D49/00
Abstract: 115,277. Alldays & Onions Pneumatic Engineering Co., Hilton, N. L., and Simms, C. E. May 5, 1917. Winding and paying-out apparatus on motor-vehicles. - A winding- drum v is carried on the driving- member s of the differential of a traction engine, one of the driven members s<1> being carried on a sleeve t which forms a bearing for one of the rear wheels g. The other driven member s<2> is provided with a clutch member u engaging a mating member u<2> on the axle e. The axle bearing 1 lies between the differential and the road wheel.