baber/WOPTO huggingface dataset:
Patent GB-1424831-A (GB)
Title: Apparatus for the production of moulded bodies in a double- walled mould
IPC: B29C41/40
Filed: 1973-03-29
Abstract: 1424831 Heating and cooling moulds THERMOVOX GmbH KUNSTSTOFFMASCHINEN 29 March 1973 [13 June 1972] 15272/73 Addition to 1241064 Heading B5A [Also in Divisions F3-F4] Heating and cooling media are circulated, alternately through the cavity of a hollowwalled rotational mould 7, the media being returned to respective storage containers 10, 13 by pumps 23, 26. Oil from the containers 10, 13 is heated and cooled by respective heat exchangers 24, 27, and is forced into the wall cavity by pressurized N 2  fed into the container tops 14, 15. To avoid build-up of pressure in the wall cavity, the oil is pumped out at a pressure somewhat higher than that at which it enters. Cooling and heating cycles are controlled by hand or automatically operated magnetic valves, and during the respective cycles, the oil not in use bypasses the mould 7 through conduits 310, 31 or 29 for immediate return to the respective storage containers through the appropriate heat exchanger 24 or 27. An additional conduit 33 is used to ventilate and empty the mould wall cavities when moulds are interchanged. The mould 7 rotates about at least two axes 2, 5.
Patent GB-515096-A (GB)
Title: Improvements in or relating to electric fittings having spring loaded electric plunger contacts
IPC: H01R33/92
Filed: 1938-05-23
Abstract: 515,096. Lamp-holders. WARD & GOLDSTONE, Ltd., and GOLDSTONE, S. May 23, 1938, No. 15278. [Class 38 (i)] A spring-pressed plunger contact f mounted on a conductor c such as is employed in a branching adapter a where the conductor is held between the halves of a moulded casing, has the plunger mounted on a finger d formed on the conductor and it is retained thereon by one or more claws h also formed on the conductor. The spring e which may abut on the end of the plunger or may be housed within it, is thus held in compression while the conductive unit is assembled in the casing. The conductor is bent downwardly at the centre so as to be free of the other conductor which may be of a Y-shape similar to the conductor c or may be in parts to allow connection through a switch.
Patent GB-815284-A (GB)
Title: Improvements relating to the preparation or replenishment of solutions for the phosphate coating of metals
Inventor: HYAMS MONTAGU
IPC: C23C22/08
Filed: 1954-05-25
Abstract: A solid composition for the preparation or replenishment of an aqueous acidic solution for the phosphate coating of metals, comprises a spray-dried aqueous solution, dispersion or slurry containing zinc, ferrous iron, manganese or cadmium dihydrogen ortho-phosphates, or a mixture of two or more of these salts.  The composition may contain solid or soluble inert fillers, e.g. bentonite or sodium sulphate, dusting agents, e.g. zinc oxide or boric acid, and coating accelerators such as zinc chlorate, sodium nitrate or nitroguanidine.ALSO:A solid composition for the preparation or replenishment of an aqueous acidic solution for the phosphate coating of metals, comprises a spray-dried aqueous solution, dispersion or slurry containing zinc, ferrous iron, manganese or cadmium dihydrogen ortho-phosphates, or a mixture of two or more of these salts. The composition may contain solid or soluble inert fillers e.g. bentonite or sodium sulphate, dusting agents e.g. zinc oxide or boric acid, and coating accelerators such as zinc chlorate, sodium nitrate or nitroguanidine.
Patent GB-548651-A (GB)
Title: Improvements in or relating to the manufacture of ceramic insulators
IPC: C04B35/50
Filed: 1941-11-29
Abstract: 548,651. Ceramic insulating materials. PHILIPS LAMPS Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Nov. 29, 1941, No. 15403. [Class 22] [Also in Group XXXVI] The subject-matter of this Specification is identical with that described in Specification 605,351.
Patent GB-753078-A (GB)
Title: Magnetic tape recording systems
IPC: H04N5/921
Filed: 1954-05-25
Abstract: 753,078. Automatic speed-control systems. RADIO CORPORATION OF AMERICA. May 25, 1954 [June 19, 1953], No. 15416/54. Class 38 (4). In a system for recording television signals on a high-speed magnetic tape, the speed of the tape-drive motor is controlled in accordance with the difference in phase of the sync. pulses in the recorded signal (from a play-back circuit) and either the sync. pulses in the ingoing signal during recording or a separate source of uniform pulses during reproduction. As shown, signals from a video source 6 are applied through a stabilizing amplifier 7 (which clips noise and restores the sync. pulses to their proper amplitude) to a video driver stage 8 feeding the recording head 9. A video monitor head 11 feeds a play-back amplifier 25 from which the sync. pulses are extracted by sync.-separator 13 and compared in a phase comparator 14 with the ingoing sync. pulses obtained direct from the video source or from the stabilizing amplifier 7. Any phase difference between the two sets of pulses operates the speed control for the tapedrive motor 17. During reproduction the sync. pulses from the playback amplifier are compared with those from a stable local pulse generator, Fig. 2 (not shown). Compensation circuits for the tape characteristics are included in the video driver stage and the playback amplifier; detailed circuit arrangements are given, Figs. 3, 4, 5 (not shown).
Patent GB-1104497-A (GB)
Title: Recovery of spent etchants
IPC: C01G3/10
Filed: 1966-04-06
Abstract: Spent ammonium persulphate solution which, having been used to dissolve copper, is left with some residual ammonium persulphate, (which may be at least 0.4M) is reactivated by cooling, preferably to 0-2 DEG  C. to crystallize CuSO4 and (NH4)2SO4, which are filtered off leaving a purified solution suitable for further etching, optionally after fortification.  Extra ammonium persulphate may be added to the solution either before or after filtering, preferably before, to increase concentration to 0.7M to 1M.  Etching can be continuous if the process is carried out on small portions withdrawn from the etching solution from time to time and returned to the main body of the solution when reactivated.  In an example, 5 p.p.m. of HgCl2 was added as an activator.
Patent GB-1470019-A (GB)
Title: Offshore counterbalancing crane
IPC: E21B15/02
Filed: 1975-04-15
Abstract: 1470019 Counterbalancing jib cranes AMERICAN HOIST & DERRICK CO 15 April 1975 [3 May 1974] 15468/75 Heading B8B A crane comprises a pedestal 12, shown mounted on the sea floor 14, (though it could be mounted on a floating barge), a machinery deck 16 rotatably mounted on the pedestal 12 and pivotally carrying a boom 18 and a mast 22, both in a forward position. The boom 18 has a load line 50 and is luffed by a line 48. A counterweight 24 in the form of a tank 26 filled with seawater 28 is pivotally mounted on the deck 12 at a rearward position 30 and has rollers (78), Fig. 2 (not shown), arranged to engage a counterweight support collar 72 integrally supported on the pedestal 12. A suspension 42 is connected between the counterweight at 43 and the mast at 41. When hook 52 is not loaded the tension in the suspension 42 is a minimum, the counterweight 24 bearing on the collar 72. As the load is increased to the point where the counterweight 24 tends to pivot upwards about the position 30 and the rollers (78) tend to leave the collar 72 shims (90), Fig. 3 (not shown), act between the counterweight 24 and the deck 16, additional counterbalancing being obtained by the flexing of the rearward portion of the deck 16.
Patent GB-1314793-A (GB)
Title: Hydraulic load control apparatus
IPC: F15B11/00
Filed: 1971-05-18
Abstract: 1314793 Hydraulic motor control circuit ROBERT BOSCH GmbH 18 May 1971 [7 July 1970] 15472/71 Heading F1P In an hydraulic circuit controlling a single acting ram 13 connected by a single line 44 to a three position distributing valve 39, the outlet line 37 from the valve 39 is connected to reservoir 36 via a valve 25 controlled by the supply pressure in supply line 18, the valve 25 closing the outlet line in the event of a loss of supply pressure. Valve 25 comprises a spool 24, Fig. 3 movable against a spring 26 by the supply pressure admitted from line 18 to connect line 37 to drain via chambers 23, 22 and line 19, a throttle passage 34 admitting pressure fluid to the right hand side of spool 24 from which it is vented via line 32 and distributing valve 39 when the latter is in the 'lower' 43 or neutral 41 position. Rightward movement of spool 24 also connects line 18 to drain via ports in the spool 24. When distributing valve 39 is in its 'raise' position 42 it closes vent line 32 which results in equalization of the pressures on each side of throttle 34 and spool 24 moves to the left, isolating both supply line 18 and outlet line 37 from drain line 19. A pressure relief valve 17 is included in the circuit.
Patent GB-406894-A (GB)
Title: Improvements in devices for use as food whisks or pot scrapers
IPC: A46B9/06
Filed: 1933-05-29
Abstract: 406,894. Food whisks and pot scrapers. GAARDER, S., 30, Fougstadgaten, Oslo, Norway. May 29, 1933, No. 15512. [Class 28 (ii).] A device usable as a food whisk or pot scraper comprises straight or waved wires 7 detachably secured around a ring, flange or the like 6 fastened to a member 9 which is releasably connected, e.g. by a bayonet joint, to a handle 4. The wires 7 are free to swing individually about the ring or flange 6 when the handle 4 is disconnected, but when the handle is connected the wires are held by the part 8 thereof. As shown, the wires 7 are passed through holes in a flange 6 and then doubled over, but alternatively the wires can be attached to one or more rings which are secured by screwed collars. In a modification, the handle contains a spring which is compressed by the connection of the bayonet joint members.
Patent GB-1096984-A (GB)
Title: N-(5-nitrothiazolyl)-n'-haloalkanoyl-ureas and process for their manufacture
IPC: C07D277/58
Filed: 1965-04-22
Abstract: Novel N - [5 - nitrothiazolyl - (2)] - N1 - (o  - haloalkanoyl)-ureas, in which the halogen atom is separated from the carbonyl group by at most 4 carbon atoms, are prepared by reacting a 5 - nitro - 2 - aminothiazole with an appropriate o -haloalkanoylisocyanate. Pharmaceutical compositions having antiparasitary and antibacterial activity, comprise a compound of the invention together with a carrier.  The compositions may be in the form of an animal fodder or an additive to an animal fodder.
Patent GB-178358-A (GB)
Title: Improvements in or relating to machines for cutting or trimming moulded articles of rubber or similar compositions
IPC: B29C37/02
Filed: 1921-06-07
Abstract: 178,358. Christian, A. R., and Rubber Trimming Machine Co., Ltd. June 7, 1921. Addition to 111,555. Rotary disc apparatus.-Relates to machines as set forth in the parent Specification for trimming the edges of rubber discs &c., and consists in means for trimming the insides of tyres. A tyre i to be trimmed is supported in a substantially vertical position by guides k, l, and revolved by a blade b on which it is positioned by an adjustable abutment (not shown). A carborundum wheel q is driven, by a flexible shaft n held in a bearing r, from a shaft f, and is adapted for trimming the inner face of the tyre.
Patent GB-110926-A (GB)
Title: A Process for Solidifying Paraffin Oil.
Inventor: MINUTO JOSEPH
IPC: C10L7/02
Filed: 1916-11-04
Abstract: 110,926. Minuto, J., and Porte, J. Nov. 4, 1916. Composition fuel.-A fire-lighter consists of paraffin oil, soap powder and sawdust, or other appropriate combustible material. The soap powder and sawdust may be added to the heated paraffin in bulk, in small quantities, alternately, or mixed together, the mixture being then poured into moulds, or a mixture of paraffin and soap powder may be poured into heated moulds containing sawdust. Any or all of the following substances may be added, namely, camphor, sodium carbonate, sodium silicate, caustic soda, naphthalene, beeswax. The fire-lighter may be put up in tins or wrapped in tin foil, oiled paper, &c.
Patent GB-620406-A (GB)
Title: Improvements in or relating to the simultaneous operation of the exposure means of a photographic camera and of flashlighting means
IPC: G03B15/04
Filed: 1946-05-24
Abstract: 620,406. Photographic cameras combined with flash-lights. GILBERT, G. May 24, 1946, No. 15827. [Class 98 (i)] In apparatus for synchronizing a flash-light with a photographic camera shutter comprising a plunger e for operating the shutter release, which is slidable in a housing a and carries a plunger head f forming one contact of a switch controlling the flash-light circuit, the second contact m, which is mounted on but insulated from the housing, is carried by a sleeve j slidable along the housing and provided with locking means as a screw clamp k, the second contact passing freely through a longitudinal slot h in the housing a. The contact m j, carried by an insulated bush n in the sleeve is and the plunger head f is formed with a key g extending into the slot h to prevent rotation of the plunger which is depressed against the action of a spring i either by means of the extension, or of a remotely-operated antinous cable. The housing a has a threaded nose b for engaging in the hole provided on cameras for antinous cable releases. For cameras in which the shutter release comprises a button which is pressed flush with the casing to depress the release proper, an extension piece is used which is externally threaded at one end to engage a threaded hole in the button, and internally threaded at the other to receive the nose of the synchronizer, a second member which may be screwed down on the exterior of the extension piece to contact the camera body being provided to act as locking nut, so that the button and synchronizer do not move to fire the shutter, but the shutter release is operated by the plunger e.
Patent GB-653095-A (GB)
Title: Improvements in dynamo-voltage control means
IPC: H02P9/26
Filed: 1948-06-11
Abstract: 653,095. Automatic regulation; supply systems for consumption apparatus; exciting dynamos. CESKOMORAVSKA-KOLBENDANEK, NARODNI PODNIK, and JANSA, F. June 11, 1948, No. 15861. Convention date, June 19, 1947. [Classes 35 and 38 (iv)] The field 8 of a D.C. generator is excited from an A.C. source 10 by a grid-controlled gas-filled valve 7. A portion of the cross-field voltage of the cross-field voltage of the generator is applied to the grid of the valve, the voltage being obtained from an auxiliary set of brushes 3, 3, which are in the magnetic axis of the field. An A.C. or a D.C. bias applied at 6 determines the shape of the drooping output voltage/load current characteristic. In a modification, Fig. 7 (not shown), the cross-field voltage is obtained from one of the main brushes and a third brush.
Patent GB-481499-A (GB)
Title: Improvements in and relating to the flocculation of solid in liquid suspensions
IPC: C02F1/52
Filed: 1936-06-06
Abstract: In separating the solids from suspensions of solids in liquids, e.g. from coal slurries, coal washing waters, sewage, or clay suspensions, there is added as flocculant an aqueous dispersion of starch obtained by treatment of starch containing material in the cold or at a temperature not exceeding 45 DEG  C. with an aqueous p  solution of calcium chloride, magnesium chloride, zinc chloride, potassium acetate or potassium thiocyanate or mixtures thereof, or with aqueous mineral acid or caustic alkali followed by a neutralizing-agent.  The dispersion of starch may be given a slight acidity or alkalinity before use.  The invention also comprises producing flocculants by treating starch with acid or alkali to produce an aqueous dispersion, neutralizing, and then stabilizing the dispersion by the addition of chloride of magnesium, calcium, or zinc.ALSO:In separating the solids from suspensions of solids in liquids, e.g. from coal slurries, coal washing waters, sewage, or clay suspensions, there is added as flocculant an aqueous dispersion of starch obtained by treatment of starch-containing material in the cold or at a temperature not exceeding 45 DEG  C. with an aqueous solution of calcium chloride, magnesium chloride, zinc chloride, potassium acetate or potassium thiocyanate, or mixtures thereof, or with aqueous mineral acid or caustic alkali followed by a neutralizing agent.  The dispersion of starch may be given a slight acidity or alkalinity before use.  The invention also comprises producing flocculants by treating starch with acid or alkali to produce an aqueous dispersion, neutralizing, and then stabilizing the dispersion by the addition of chloride of magnesium, calcium, or zinc.ALSO:In separating the solids from suspensions of solids in liquids, e.g. from coal slurries, coal washing waters, sewage, or clay suspensions, there is added as flocculant an aqueous dispersion of starch obtained by treatment of starch-containing material in the cold or at a temperature not exceeding 45 DEG  C. with an aqueous solution of calcium chloride, magnesium chloride, zinc chloride, potassium acetate or potassium thiocyanate, or mixtures thereof, or with aqueous mineral acid or caustic alkali followed by a neutralizing-agent.  The dispersion of starch may be given a slight acidity or alkalinity before use.  The invention also comprises producing flocculants by treating starch with acid or alkali to produce an aqueous dispersion, neutralizing, and then stabilizing the dispersion by the addition of chloride of magnesium, calcium, or zinc.
Patent GB-1145362-A (GB)
Title: Mechanism for controlling ejection from a self loading scraper
IPC: E02F3/64
Filed: 1966-04-12
Abstract: 1,145,362. Earth-moving, bowl scrapers. INTERNATIONAL HARVESTER CO. 12 April, 1966 [6 May, 1965], No. 15918/66. Heading E1F. In a bowl type scraper ejection of the contents of the bowl is controlled by a hydraulically actuated ram 90 that at each of its ends is coupled to a linkage, the two linkages 60, 65 and 70, 85, 75, 80. Being such as to cause on expansion of the ram sequential moving of first the front part 52 of the floor of the bowl beneath the rear part 51 of said floor and then of an ejector plate 53 forward through the bowl for controlled discharge of the contents of the bowl. An alternative construction to the one shown is also described.
Patent GB-457612-A (GB)
Title: Piston rings
IPC: F16J9/20
Filed: 1935-06-01
Abstract: 457,612. Piston-rings. W.P. (LYMING- TON), Ltd., and HOWLETT, J. W., Radial Works, Stanford Road, Lymington, Hampshire.-(Simplex Piston Ring Co. of Amer., Inc. ; 1966, East 66th Street, Cleveland, Ohio, U.S.A.) June 1, 1935, Nos. 15976 and 21836. [Class 122 (i)] A piston - ring comprises a bearing surface of steel, having a scleroscope hardness of between 25 and 65, and a harder steel or cast iron backing spring which is between 1À2 to 3À5 times harder than the bearing surface. The soft steel may be cemented dovetailed or deposited electrolytically on the spring. Alternatively, a steel ring may have its inner periphery casehardened to provide the spring portion. The soft steel ring may comprise laminations 7 backed by a wave spring 4 and bevelled or set back from the cylinder wall to provide oil channels. The groove depth may be regulated by shims 3. Relative rotation of the laminations is prevented by projections 10 thereon engaging between the waves of the spring, or the latter may engage in aligned recesses in the laminations. The soft steel may be inserted in a groove 13 in a cast iron spring 4, Fig. 9. Specification 427,256 is referred to.
Patent GB-689475-A (GB)
Title: An improved bucket
IPC: A63H33/32
Filed: 1950-06-27
Abstract: 689,475. Toy buckets. ATKIN, D., and CANNON RUBBER MANUFACTURERS, Ltd. May 9, 1951. [June 27, 1950 : Oct. 6, 1950] Nos. 16045/50 and 24507/50. Class 132 (iii). [Also in Group XVII] A bucket, particularly a child's play bucket, is constructed of rubber or like resilient material and comprises projections 16 upon which is attached a handle of similar material having eye-holes or slits 17. In the embodiment illustrated, the upper rim and the base of the bucket are of thickened rubber and a further rim portion extends beyond the base.
Patent GB-629137-A (GB)
Title: Improvements in or relating to a process of preparing a copolymer of vinylidene chloride
IPC: C08F214/08
Filed: 1947-06-18
Abstract: From 5 to 95 per cent of vinylidene chloride is copolymerized with 95 to 5 per cent of acrylonitrile or an alpha alkyl acrylonitrile in which the alkyl group contains not more than five carbon atoms.  The process may be carried out in aqueous emulsion or suspension. Suitable catalysts are benzoyl or hydrogen peroxide or uranium salts, heat or light.  Alpha-methyl, -ethyl, -butyl, and -amyl acrylonitriles are specified.  Plasticizers, pigments, dyes or fillers may be added before or after the polymerization.
Patent GB-110224-A (GB)
Title: Improvements in Pivot Windows.
Inventor: BASTOW SAMUEL
IPC: E06B3/34
Filed: 1916-11-10
Abstract: 110,224. Bastow, S. Nov. 10, 1916. Reversible windows.-- A window, mounted on central horizontal pivots, is held in any desired position by wooden or metal wedges at each side, one wedge being adjustable. Figs. 1 and 2 show a section and elevation respectively of the left-hand side of the window. The wedge A tapers from inwards to outwards and is slidable in a fixed block G. A pin D prevents the outer edge from lifting and a screw E guides and clamps the wedge against the frame. The opposite wedge is fixed to the window frame and tapers from outwards to inwards. The sash S is bevelled similarly to the wedges where it bears on them, and the pivots F permit a slight lateral movement cf the sash when the wedge A is driven in.
Patent GB-202103-A (GB)
Title: Improvements in or relating to theatre and the like tip-up seats
IPC: A47C7/58
Filed: 1922-06-10
Abstract: 202,103. Clinkard, W. H. June 10, 1922. Folding-seats. - The standards of a tip-up seat support a fixed bar attached to the seat, and retained in slots in the standards in a readily-detachable manner by the torque on a spiral spring so mounted on the bar as automatically to tip the seat When it is vacated. In the preferred construction, one end of the spring F is fixed to the bar C, while the other is connected to a ratchet-wheel G rotatably mounted on the bar and engaged by a pawl J on one of the seat lugs B, thus enabling the tension on the spring to be varied. Each end of the bar is shaped to enable it to be dropped into the vertical slots E<1> formed in lugs E on the standards, these slots having lateral extensions conforming to the section of the bar, which may be semicircular or polygonal, so that on insertion the bar is partly rotated by the spring and held thereby in engagement with the lateral extensions, and by turning back the axle against the spring the seat may readily be removed.
Patent GB-1035351-A (GB)
Title: Bubble tray provided with variable gas passages and method of installing valves in such trays
IPC: B01D3/16
Filed: 1963-04-24
Abstract: 1,035,351. Valves. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. April 24, 1963 [April 26, 1962], No. 16181/63. Heading F2V. [Also in Division B1] A valve for insertion in a gas passage 2 of a gas/liquid contact tray 1 comprises a valve body 3 and strips 4 and 5 of resilient material contacting the valve body at or adjacent its centre and each having portions such as 12 and 13 which support the valve in its lowest position and limbs such as 8 and 9 which extend downwardly through the gas passage and by reason of outwardly bent ends 10 or 11 serve to limit upward movement of the valve. As shown, the strips are secured to the valve body at its centre but in a modification tongues may be struck out of the portions 12 and 13 and bent over the edge of the valve body to secure the strips thereto. In further modification the valve body may be dish-shaped and larger than the gas passage, the supporting portions of the resilient strips underlie a peripheral portion of the valve body.