baber/WOPTO huggingface dataset:
Patent GB-838253-A (GB)
Title: Improvements in or relating to hydraulically-operated jaw crushers
IPC: B02C1/00
Filed: 1958-01-30
Abstract: 838,253. Jaw crushers. GAULDIE, K. Jan. 29, 1959 [Jan. 30, 1958], No. 3056/58. Class 59 [Also in Group XXIX] An hydraulically operated jaw crusher comprises a reciprocating power - driven plunger A, a jawpropelling ram C, a valve B which during alternate to-and-fro movements of the plunger connects and disconnects the plunger to and from the ram, and an enclosed vessel D into which the plunger discharges against a yielding resistance during alternate to- and-fro movements when disconnected from the ram. The crusher is of the kind described in Specification 642,315 in which the jaw is oscillated during alternate to- and-fro movements of the plunger and remains stationary during the other to-andfro movements. Leakage from the hydraulic system is made up during the idle strokes of the plunger by the valve B connecting the plunger to the vessel D, which is connected by a non-return valve F to a second vessel E. A steady pressure is thus maintained in the vessel E and is sufficient to make up leakage from the ram during the idle strokes, the liquid being passed to the ram by means of a valve similar to that described in Specification 648,443. During the active stroke of the plunger, the valve B opens a port at its lower end H and oil passes from a sump to the vessel D. The yielding pressure in the vessels D, E may be effected by spring or gravity-loaded pistons.
Patent GB-672350-A (GB)
Title: Improvements in or relating to an apparatus for the selection of seeds or similar material
IPC: B07B13/02
Filed: 1950-02-07
Abstract: 672,350. Sorting solid materials. MASCHINENFABRIK HEID AKT.-GES. Feb. 7, 1950 [Feb. 11, 1949: Feb. 19, 1949; Dec. 31, 1949], No. 3108/50. Class 117 In an apparatus, for sorting seeds or the like, of the kind comprising a cylinder provided with selecting cells 15 and a collecting trough 9 placed in said cylinder, the wall of the cylinder has one or more slits or apertures, which may be closed or opened at will, to facilitate the emptying and cleaning of the cylinder. Fig. 2 shows an arrangement wherein the cylinder wall is formed by separate removable overlapping plates 3 arranged so that the gaps 2 therebetween face in the selecting direction of rotation and escape therethrough of the " kidney mass " 13 during selection is prevented. Emptying of the cylinder is effected quickly by reversing the rotation thereof. With this arrangement each plate 3 may be adjustable to allow outward tilting thereof in the selecting direction of rotation and thus provide a means of angularly varying the point at which seeds leave the cells 15 to fall into the trough 9. Fig. 5 shows an alternative arrangement wherein the plates 3 are joined by removable radial webs 21 which close the gaps 2 during selection. In further arrangements, a one-piece cylinder may have a hinged longitudinal cover-plate, or the cylinder may comprise two or more sections removably connected together, the whole or part of one section being hinged to provide the cover plate. The cylinder may be polygonal in section. Specification 672,351 is referred to.
Patent GB-233426-A (GB)
Title: Improvements relating to the manufacture of lakes of the basic dyestuffs
Filed: 1924-02-07
Abstract: Lakes, pigments, or body colours are produced by heating basic dyestuffs in the presence of liquid with natural or artificial materials consisting wholly or substantially of silica and containing it in hydrated form.  In an example, brilliant green is boiled with water and Neuburger Kieselkreide.  The solid precipitated is separated and worked up in the usual manner. Specifications 201,940 and 201,941 are referred to.
Patent GB-1061947-A (GB)
Title: Process for the preparation of powders of a block copolymer
Inventor: BAUER RALPH HAROLD
IPC: C08J3/14
Filed: 1966-01-25
Abstract: A block copolymer, or a hydrogenated derivative thereof, of formula A-B-A, in which each A is independently a polymer block of a vinyl substituted aromatic hydrocarbon and B is a polymer block of a conjugated diene hydrocarbon, is dissolved in a hydrocarbon solvent and the solution mixed with at least an equal volume of a polar organic liquid miscible with the hydrocarbon solvent, the solubility parameter of the polar organic liquid differing at least 4 (cal./c.c.)1/2 from that of the block copolymer and not more than 6 (cal./c.c.)1/2 from that of the hydrocarbon solvent, and a precipitate of a pulverulent block copolymer is recovered as a powder. (Solubility parameter=(D E/V)1/2 where D E=D Hvap. - RT and V is molal volume.)  In examples, A is styrene and B is isoprene or butadiene, the hydrocarbon is benzene or cyclohexane and polar liquids tested are water, methanol, ethanol, acetone. Additives exemplified are:  naphthenic oil, block copolymer, paraffin wax, whiting.  Inorganic fillers and polymeric extenders are generally mentioned as additives to the solution.
Patent GB-456703-A (GB)
Title: Improvements in glazing frames
IPC: E06B3/10
Filed: 1936-02-04
Abstract: 456,703. Window frames. VINCENT, F., 55, Melbury Avenue, Norwood Green, Southall, Middlesex. Feb. 4, 1936, No. 3378. [Class 20 (iii)] A glazed sash for windows, screens, doors, and the like, comprises a metal angle-iron frame 4 and a glazed sash of heat-insulating material, such as wood or a mouldable substance, secured thereto by screws 12 and completely shrouding the metal on one face. The frame 4 is prefer ablv sunk in the rabbetec edges of the sash and, ir the case of the meeting edges of hinged sashes, one meta angle-member has a flange 29 turned inwardly and the other one 27 turned outwardly, as shown. When applied to a hinged roof light, the hinges are connected to an outwardly turned flange of the metal frame. The metal frame may be formed by mitred and welded joints from L-section material.
Patent GB-824790-A (GB)
Title: A cartridge-operated tool for firing bolts and the like
IPC: B25C1/10
Filed: 1957-01-31
Abstract: 824,790. Cartridge-operated tools for firing bolts &c. BEHREND, H. Jan. 31, 1957 [Feb. 16, 1956], No. 3471/57. Class 119 A cartridge operated tool for firing bolts &c. comprises front and rear parts 1, 2 pivotally connected by a pivot pin 12 on which is also pivoted a lever 18 engaging in a slot 21 in an extractor 19, 23 which surrounds and is slidable on the barrel. On breaking the tool after firing a spring- urged catch 24 on the rear part 2 engages a nose 25 on the lever 18 so that the lever 18 and hence the extractor 19, 23 is moved rearwardly to extract the cartridge case. Instead of the catch 24, the lever 18 may be coupled rigidly with the rear part 2.
Patent GB-1068457-A (GB)
Title: Fluid flow logic element
IPC: F15C1/14
Filed: 1966-01-26
Abstract: 1,068,457. Controlling fluid flow. POLITECHNIKA WARSZAWSKA. Jan. 26, 1966 [Feb. 2, 1965], No. 3506/66. Heading G3H. A fluid logic element comprises an open chamber having a number of inlet ports and an outlet port, the latter being coaxial with one of the inlet ports to receive a jet of fluid issuing therefrom. One or more of the other inlet ports are arranged so that control jets of fluid issuing therefrom disturb the said jet received by the outlet port. Other inlet ports are provided to direct jets to disturb the said control jets. In Figs. 2-7 (not shown) various arrangements of the inlet ports 1-7 are shown, with an outlet port 14. In Fig. 8, an inlet port 1 supplies outlet port 14 with a jet that can be disturbed by jets issuing from ports 4, 7, 13. Jet 4 can be disturbed by jets issuing from ports 2, 5; jet 7 can be disturbed by jets issuing from ports 6, 9 and jet 13 can be disturbed by jets issuing from ports 3, 8, 11. Further inlet ports 10, 12 are providing for disturbing jets 2, 3 and 8, 9 respectively. The inlet ports are preferably provided with resistances and the chamber preferably contains screens to eliminate vortices caused by the jets.
Patent GB-383122-A (GB)
Title: Improvements in and relating to electric condensers and methods of manufacturing thesame
IPC: H01G4/228
Filed: 1932-02-05
Abstract: 383,122. Condensers. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Elektrizitats - Akt - Ges. Hydrawerk; 32, Drontheimerstrasse, Berlin.) Feb. 5, 1932, No. 3514. Convention date, Feb. 5, 1931. [Class 38 (ii).] The conducting leads of a wound condenser are secured to the coatings, e.g. by soldering or welding before winding and may serve as the means for securing the finished condenser.
Patent GB-1185137-A (GB)
Title: Novel Epoxides and Cured Polymers obtained therefrom
Inventor: MANGO FRANK DONALD
IPC: C08G59/24
Filed: 1969-01-22
Abstract: 1,185,137. Epoxides. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 22 Jan., 1969 [24 Jan., 1968], No. 3577/69. Heading C2C. [Also in Divisions C3 and C5] The invention comprises epoxides of the formula in which each R is H or methyl, n is 1 or 2 and the A's taken separately are hydrogen or together are oxygen forming an oxirane ring with the adjacent carbon atoms. They may be prepared by reacting corresponding ethylenically unsaturated compounds with an epoxidizing agent, e.g. peracetic acid, perbenzoic acid and monoperphthalic acid. The process is preferably carried out in the presence of a solvent, e.g. methylene chloride, ether, chloroform, benzene and ethyl acetate at a temperature between - 20‹ C. and 60‹ C.
Patent GB-582190-A (GB)
Title: An improvement in or relating to servo-assisted or servo-operated mechanisms
IPC: B62D5/06
Filed: 1944-02-26
Abstract: 582,190. Controlling motor vehicles. BROWN & SONS (HUDDERSFIELD), Ltd., D., and TUPLIN, W. A. Feb. 26, 1944, No. 3590. [Class 79 (v)] [Also in Groups XXIV and XXIX] An arrangement for controlling servooperated brakes from the steering column of a vehicle comprises a hand wheel fast on a. shaft, a member normally rotated with the shaft but capable of limited angular movement relatively to the shaft against a spring or springs and means whereby the said relative angular movement brings into action the servo-mechanism. As shown in Fig. 1, the hand wheel a is rigidly connected with a steering shaft c by spokes b which are surrounded by hollow arms d carried by a boss d<1> rotatable relative to the shaft c. The arms d have relative angular movement with respect to the hand wheel a in recesses f under the control of leaf springs g. This relative movement is transmitted to the valve controlling the servo-mechanism by a link h connected to an arm d, a lever i pivoted at i' on the corresponding spoke b and an angle lever j carried by the shaft c and connected at one end to the lever i and at the other, which is bifurcated, to a grooved collar connected to the control valve. Normal, manual steering is effected by the hand wheel a and a finger is applied to the outer ends of one of the spokes d to effect servo- - braking.
Patent GB-123594-A (GB)
Title: An Improved Process for the Manufacture of Parchmentized or like Paper.
Inventor: DAGNALL WALTER
IPC: D21H17/65
Filed: 1918-02-28
Abstract: 123,594. Dagnall, W. Feb. 28, 1918. Parchment paper; paper, treating with special materials.-Paper is parchmentized, and rendered waterproof acidproof, and of great strength, by passing it through two baths of sulphuric acid or sulphuric acid mixed with sulphurous acid, the second being more dilute than the first, the acid being squeezed out after each operation, the paper being afterwards neutralized by means of an alkali bath, washed, softened by means of a bath of glycerine, calcium chloride, salt, or the like with or without admixed loading'-material and then dried.
Patent GB-1069357-A (GB)
Title: Glass
IPC: C03C8/10
Filed: 1966-01-27
Abstract: A glass ceramic is prepared by thermally crystallizing a glass comprising in weight per cent 45-57 SiO2, 29-38 Al2O3 and 13-22 Na2O, plus, in weight per cent of the aforementioned ingredients 0.5-5 ZrO2 and 1-10 ZnO.  In addition there may be present, as a percentage of the total weight of the SiO2, Al2O3, and Na2O, 0-3 TiO2 (in which case the ZrO2 or the ZrO2 and TiO2 together amount to 3.5), up to 3 Li2O, K2O, or CaO, less than 3 MgO, less than 2 BaO, up to 2 PbO or P2O5.  The glass is prepared by heating the batch for 7-8 hours at 1500-1550 DEG  C., forming, heating to a temperature between annealing and softening point (700-800 DEG  C.) for 2 hours, increasing the temperature at 5 DEG  C. per minute to 1100 DEG  C. and maintaining this temperature for 2 hours.
Patent GB-178958-A (GB)
Title: Improvements in or relating to means for suspending incandescent gas mantles
IPC: F21V19/06
Filed: 1921-01-31
Abstract: 178,958. O'Brien, T. B. Jan. 31, 1921. Mantle supports.-An upright gas-mantle support comprises a preferably flat steel or other strip bent upon itself to form arms a, a adapted to engage slidably a chimney b or other support carried by a burner m, a slidable sleeve k, which may be provided with laterally projecting grooved curved arms to fit the chimney edge b<1>, retaining the support in any adjusted position. The inner arm is bent to form a hook d for suporting a mantle e by its loop e<1>. The outer arm may be bent to form a handle a<1> or a second supporting-hook a<2>.
Patent GB-607502-A (GB)
Title: Improvements relating to power operation of laundry and like presses
IPC: D06F71/06
Filed: 1946-02-06
Abstract: 607,502. Laundry presses. HOWLETT, E. J., and GLEDHILL, H., GLEDHILL, N. R., and GLEDHILL, M., (trading as THOMAS'S). Feb. 6, 1946, No. 3771. [Class 138(ii)] [Also in Group XXXII] Relates to laundry and like presses in which a head is moved into position over a buck by power derived from an auxiliary fluid-pressure cylinder 4 and operative pressure between the head and buck is then applied by a main cylinder. According to the invention, the auxiliary cylinder is provided with venting means at one end giving movement relatively unrestricted by the compression of fluid trapped in the cylinder during the earlier part of the power stroke, and means come into operation at a pre-determined point in the stroke to restrict the escape of the entrapped fluid and provide an automatic buffer effect. The invention i s described as applied to the press described in Specification 583,516, in which the head is carried by a pivoted lever arm adapted to swing it against gravity into the operative position under the action of the auxiliary cylinder, pressure then being applied by the main cylinder to the pivotal point of the lever in order to bring the head and buck into pressing relation. One end of the auxiliary cylinder 4 is connected by a pipe 19 with a compressed air or other fluid supply through a regulating valve 18, and the other end is provided with a vent 71 which, towards the end of the stroke of the piston 66, is closed by a valve 72 in the form of an annular plate pressed by a light spring 75 to lie at the required distance ahead of the piston. After the valve 72 has seated on the vent 71, the spring 75 is compressed until the end of the stroke is reached and the pressure of the trapped air builds up to give the desired buffer action to a degree determined by a second vent 73, which is unaffected by the valve 72 and is, preferably, adjustable by a needle valve 74. Instead of the spring 75, a sliding tension member may be provided. Air from a main control valve passes through a pipe 9 to a passage 61 in the valve 18, and thence to a second passage 62 which is controlled by a oneway valve 63 and connected to the pipe 19 leading to the cylinder 4. As soon as the main ironing pressure is applied, air supply is cut off to the cylinder 4, which is then connected to exhaust through a by-pass 64 controlled by a needle valve 65 in the valve block 18. When the ironing pressure is released, there is normally atmospheric pressure only in the cylinder 4, and the head then returns at controlled speed under gravity to its inoperative position.
Patent GB-1268871-A (GB)
Title: Heat treatment of beryllium-copper alloys
Inventor: BRITTON JOHN
IPC: C22F1/08
Filed: 1969-01-23
Abstract: 1,268,871. Heat-treating beryllium-copper alloys. SPRING RESEARCH ASSOCIATION. Jan. 13, 1970 [Jan. 23, 1969], No. 3771/69. Headings C7A and C7N. Alloys containing 1À5-2À2% Be and up to 0À5% of Co and/or Ni are solution treated and quenched to a temperature below that at which precipitation hardening is normally carried out in a medium having a heat-transfer coefficient of 150 to 750 B.Th.U./ft.<SP>2</SP>hr. ‹F. Preferably the quench medium is a fused mixture of sodium nitrite and sodium and potassium nitrates having a melting point of 150‹ C., and the alloy is quenched to 150‹ -300‹ C. Subsequently the alloy may be formed to shape and precipitation hardened at 300‹ - 350‹ C. for two hours. The magnitude of the uniform contraction which occurs during precipitation treatment may be varied by modifying the solution treatment temperature and/or the time and temperature of the quench.
Patent GB-1513707-A (GB)
Title: Balancing device for a meat spit
IPC: A47J37/04
Filed: 1977-01-31
Abstract: 1513707 Spits C GLAUSER 31 Jan 1977 [30 Jan 1976] 03801/77 Heading A4D [Also in Division F2] A balancing device for a roasting spit 1 comprises a support plate 5 made of ferromagnetic material and able to be secured to the spit for rotation therewith, and a balance weight 8 constituted by a magnet and able to be positioned on the plate to counteract any out-of-balance forces caused by the meat 2 being skewered off-centre, the weight 8 being held to the plate by magnetic attraction. As shown, the plate 5, of soft iron, is held to the spit by a locking screw 7 and the spit may be rotated by an electric motor 4 which is weighted and mounted off-centre so that it does not itself rotate as it drives the spit. A pin projecting from the motor and bearing on the spit support 3 may optionally be provided to prevent the motor itself rotating when large pieces of meat are cooked.
Patent GB-610556-A (GB)
Title: Improvements in tobacco pipes, and cigarette or cigar holders
IPC: A24F1/16
Filed: 1946-02-07
Abstract: A tobacco pipe or a cigar or cigarette holder has a connecting passage between the bowl and mouthpiece in the form of a helical groove cut on the outside of a core which is first covered with linen or other woven tape to absorb the nicotine, and then surrounded first by a split light-metal tube and finally by an unsplit tube of light-metal or vulcanite, which is preferably roughened on the outside and has telescopic connection with the bowl and mouthpiece. The Provisional Specification describes the use of an unsplit tube of rubber.
Patent GB-668677-A (GB)
Title: Improvements in or relating to safety devices for movable parts of machines
IPC: B23Q11/00
Filed: 1950-02-15
Abstract: 668,677. Planing. ATELIERS G. S. P. GUILLEMIN-SERGOT-PEGARD. Feb. 15, 1950 [Feb. 15, 1949], No. 3869/50. Class 83 (iii). [Also in Group XXXIV] A safety device for preventing over-running of the table 1 of a planing machine comprises a metal rod 5 with an enlarged tapered portion 8, which is drawn through a fixed die 6 and thereby deformed to provide a braking action in the event of the normal stroke of the table being exceeded. The rod 5 carries a member 4 which is engaged by an abutment 3 on the table 1 if the latter commences to over-run. Alternatively, the die-and-bar assembly may be mounted on the table and the member 3 on the bed of the machine.
Patent GB-1036631-A (GB)
Title: Wood preservatives
IPC: B27K3/32
Filed: 1963-01-30
Abstract: Wood preservatives comprise an alkali metal and/or ammonium fluoride and/or bifluoride and alkali metal and/or ammonium chromates and/or bichromates, the amount by weight of alkali metal ions to ammonium ions being so adjusted that the formation of free ammonia or ammonium hydroxide is possible when the composition is in aqueous solution. Other ammonium compounds having insecticidal or flame retardant properties e.g. ammonium borate, arsenate, oxalate, benzoate, salicylate or phosphate, or ammonium sulphate may be present. Arsenic acid, arsenic oxide or arsenates and potassium sulphate or phosphate may be included.
Patent GB-120191-A (GB)
Title: Improvements in or relating to Ignition Circuits of Magnetos.
Filed: 1918-03-07
Abstract: 120,191. Compagnie Generale de Magnetos. Sept. 29, 1917, [Convention date]. Systems, electric.-An inductor magneto is used, with a condenser in series in the secondary circuit, and a resistance in the armature circuit.
Patent GB-1142111-A (GB)
Title: Conveyor system for elongated structures
IPC: B66B1/20
Filed: 1967-01-27
Abstract: 1,142,111. Lift control systems. WESTING- HOUSE ELECTRIC CORP. 27 Jan., 1967 [11 Feb., 1966], No. 4111/67. Heading B8L. In a lift system for a building having seventytwo floors, two feeder banks are provided to the forty-first floor enabling transfer to the higher floors which are served by local banks each having six lifts. The second, third, and fourth local banks have express operation to the fiftyfirst, fifty-ninth, and sixty-sixth floors respectively. A load index repeatedly samples the sum of the loads of all the cars in a feeder bank that leave both the ground floor and the transfer floor, this index having a pointer which indicates on a scale whether the total loading is light, moderate, heavy, or very heavy. The index determines the number of feeder lifts to be kept in service, whether help is necessary from another bank, or whether lifts are available to help another bank. A divisional index indicates the difference in traffic originating at the ground and transfer floors, the index having a pointer associated with a scale with a central position indicating a balanced condition wherein the cars are evenly divided between the main and transfer floors. Positions of the pointer displaced from the central position indicate that more traffic originates from one or other of the floors and assigns the lift cars accordingly. When traffic in the feeder bank is predominantly in the upward direction, the divisional index causes cars from the local banks to be sent to the transfer floor. When traffic in the local banks is predominantly in the downward direction, more cars in the feeder banks are assigned to the transfer floor. A bridge circuit compares the number of feeder cars in service with the load-intensity for controlling relays adapted to shut-down the motor-generator sets of surplus cars or starting the sets of cars to be brought into service. Load-intensity relays have contacts adapted to shunt individual resistors in the bridge circuit which is unbalanced to control either surplus-car relay or a deficit-car relay. The divisional index comprises a two-way step switch whose windings receive pulses, corresponding in number to the loading of the cars, during a sampling period, the pointer being moved selectively to energize a load divisional relay. If there is a preponderance of traffic from the transfer floor to the ground floor, one of the divisional load relays is picked up to energize an up-dispatcher expedite relay so that cars are sent from the ground floor towards the transfer floor until the divisional index operates to de-energize the divisional load relay, so indicating that the heavy down traffic condition has subsided. If the flow of traffic follows a repetitive pattern, the number of cars in service, the allocation of hars to the transfer floor and the ground floor, and the expediting of cars towards the transfer floor, may be controlled by clocks or time switches.