baber/WOPTO huggingface dataset:
Patent GB-552080-A (GB)
Title: Coupling for sectional conduits
IPC: F16L23/10
Filed: 1941-09-15
Abstract: 552,080. Clamps. CHEMA MANUFACTURING CO., Ltd., and SIGMUND, M. Sept. 15, 1941, No. 11816. [Class 44] [Also in Groups XXVIII and XVII] A coupling for connecting flanged pipe ends or for connecting a pipe or closure plate to the flanged opening of a container comprises a rubber ring 30 of inwardly-directed channel section surrounding the flanges 27, 29 and a split channel-section clamping ring 31 which fits round the rubber ring and is contracted on to, it. The ribs 2 of the rubber ring and the ribs 4 of the clamping ring are of less height than the, thickness of the body of the rubber ring.. The ribs of the clamping ring may be divergent inwardly. The clamping ring comprises hinged sections secured by a bolt. In one form a bolt 23, Fig. 5, is rotatably secured in a member 20 pivotally mounted in lugs 19 on the end of one ring section. The bolt screws in a block 24 on which is hinged a shackle 17 having a hooked lip 25 adapted to engage a hooked lug 16 on an adjacent ring section.
Patent GB-142664-A (GB)
Title: Improvements in or relating to motor fire engines and boats
IPC: B63H21/175
Filed: 1919-05-12
Abstract: 142,664. Tilling-Stevens, Ltd., and Carter, H. H. May 12, 1919 Fire-engines; floating fire-engines.-An emergency fire boat or float P is arranged to carry a motor road-vehicle fire-engine, which is run on to the boat down a ramp or inclined plane Q and is adapted to supply electric power to propel the boat. The motor fire-engine is of the petrol-electric type, the dynamo B being connected alternatively to electric motors C, K driving the vehicle and centrifugal pump L respectively. The dynamo B is also adapted to be connected, through a switch S near the steering-wheel T, to one or more electric motors U driving one or more propellers V.
Patent GB-145003-A (GB)
Title: Improvements in sporting guns
IPC: F41C7/11
Filed: 1920-04-29
Abstract: 145,003. Soc. Petrik et Cie, (Assignees of Petrik, B.). June 13, 1919, [Convention date]. Breech actions, drop-down barrel.-Consists in pivoting the barrels of under-and-over guns substantially midway between the barrels in a strap mounted in grooves in the side cheeks of the breech body. In the construction shown, the barrels C are hinged by pivots e in a U-shaped strap d, Fig. 3, mounted to slide vertically in grooves in side cheeks g of the breech body and adapted to be held in the lowered position by a clamp l. The barrels are locked by a sliding top bolt o operated by a lever q. The rear ends of the barrels are almost completely enclosed by the side cheeks of the body.
Patent GB-1505359-A (GB)
Title: Rotary filter wash distributor
IPC: B01D11/02
Filed: 1975-03-21
Abstract: 1505359 Washing filter cake EXXON RESEARCH & ENG CO 21 March 1975 [29 March 1974] 11936/75 Headings B1D and B2F Filter cake on the outside of a rotary filter drum 13 is washed with minimal disturbance by liquid from a distributor tube extending parallel to the drum axis, the tube 15 having upwardly directed holes 15a which deliver the wash liquid into an arcuate space formed between the tube and an impervious cover 17, extending 270‹ round the tube and spaced therefrom by a wire mesh or sintered metal layer 16, an outer helical wire 18 catching the liquid as it flows round the tube and out of the space and causing it to drop onto the drum 13 as a series of streams which break up (12a) as they fall to reform as a single narrow pool extending axially along the cake. The liquid is supplied to the tube 15 at 3 p.s.i.g. or more, the resulting kinetic energy being largely dissipated by the flow resistance of the holes and wire mesh 16. Several tubes 15 may be spaced round the drum to operate in parallel. Holes 15a may be 0.015 to 0.025 inches dia. and one inch apart, and the turns of wire 18 are one half inch apart.
Patent GB-872615-A (GB)
Title: Improvements in or relating to apparatus for reproducing discontinuously recorded continuous signals
Inventor: BALDWIN JOHN LEWIS EDWIN
IPC: G11B15/14
Filed: 1959-04-09
Abstract: 872,615. Magnetic playback apparatus; head switching. BUSH & RANK CINTEL Ltd. April 11, 1960 [April 9, 1959], No. 11978/59. Class 40 (2). To eliminate the effects of head-switching surges when a continuous signal is played back from a wide magnetic tape by moving heads scanning successive transverse tracks thereon, random head-switching is used during the overlap period. The usual switching signal a as derived from photo-electric means associated with the head turntable is fed to a limiter 22, 27, 28, whose time constants are such that a capacitor is charged and discharged over a limited range b. A ransom noise generator 37 feeds a waveform c into a cathode-coupled modulator 34, 35, whose output is fed to a flipflop 44, 45. The instants at which the flanks of the waveform at the anode of 34 attain the switching values required by the flip-flop are time-modulated in accordance with the waveform c, the output d being used to switch the heads instead of a. The rise- and decay-times of b are arranged to be less than the overlap time so that in e.g. a visual radar display, the headswitching surges are randomly distributed over the display. Instead of the random generator 37, a waveform generator of periodicity differing from that of the waveform a may be used.
Patent GB-677583-A (GB)
Title: Braking systems for motor road vehicles
IPC: B60T11/04
Filed: 1950-05-15
Abstract: 677,583. Motor vehicle brake transmission systems. AUSTIN MOTOR CO., Ltd., and JONES, G. March 8, 1951 [May 15, 1950], No. 12027/50. Class 103 (i). A braking system for motor road vehicles in which the front and rear brakes are applied simultaneously by a common driver-operated control member is characterized in that the front and rear brake-operating mechanisms are each connected to a radius arm B, having free pivotal movement about a fixed axis E, through separate means A, F which apportion automatically the total braking effort so that the ratio between the front and rear brake application forces increases in accordance with increased driver's effort, and thus according to the deceleration of the vehicle. A bell-crank lever G with a short vertical arm and a long horizontal arm is pivotally connected to the radius arm at H, and the end of the rear brake rod F is directly connected to the lower end of the vertical arm of the bell-crank. The end of the horizontal arm of the bell-crank bears against the underside of a member to which the front brake rod A is attached, this member having a pin C slidable in a radial slot D in the arm B under the constraint of a compression spring K. In operation increased driver's effort increases the tension in the rod A to swing the arm B forwardly through a small angle, thus causing rotation of the bell-crank G and upward movement of the end of the rod A against the spring K. By this means the dimension R<SP>1</SP> is decreased, whereas R<SP>2</SP> remains approximately constant, thus resulting in a greater proportion of the total braking effort being applied to the front brakes. The variation in braking effort ratio can be arranged to start at any desired effort or deceleration by appropriate preloading of the spring K.
Patent GB-162615-A (GB)
Title: An improved vehicle capable of being moved vertically and horizontally in air and in water
IPC: B60F3/00
Filed: 1921-04-27
Abstract: 162,615. Didelot, J. F. O. April 29, 1920, [Convention date]. Propelling by endless-band propellers and by air and water jets.-An aircraft, adapted to travel also on land and water or under the water, is constructed in the form of an aeroplane, with endless-band propellers C, D at the sides, and an endless-band propeller V for driving on or under water. Other endless-band propellers are provided at the wing-tips and one J at the tail, each being driven by a separate electromotor. During the non-effective stroke of the band propellers, the blades either pass through an enclosing- casing, or are feathered by means of arms L, Fig. 6, attached thereto and engaging a rail H along the non-effective part, the blades I being moved to the effective position by the engagement of rollers thereon with collars b. Jets of air, water, &c. may be projected on to the blades to increase the propelling effect. The blades are formed with a series of recesses X, Fig. 6, along their free edges. The blades may be arranged in groups, the number of recesses in the blades of a group diminishing in the direction opposite to the movement of the bands. The lengths of the blades and their spacing may also diminish from one end of a group to the other. The blades are of india-rubber with the part I rigid and the outer part flexible and formed with recesses X. Front wheels G, which may be driven, and a crutch H can be raised by motor pistons p, p' to allow caterpillars E, F to be used on rough ground or sea-beds.
Patent GB-1415132-A (GB)
Title: Earth moving attachment for vehicles
IPC: E02F3/352
Filed: 1974-03-19
Abstract: 1415132 Shovelling machines MAK MASCHINENBAU GmbH 19 March 1974 [30 June 1973 21 Dec 1973] 12075/74 Heading E1F An earth-moving attachment for a vehicle comprises two scoops 1 arranged side by side on a cross beam 2 adapted to extend transversely of and be vertically swingable with respect to a vehicle 10 when the attachment is mounted on the vehicle, said scoops being guided for outward sliding movement longitudinally of the beam and being tiltable sideways when they are to be discharged. Two preferred embodiments are described. In the first embodiment each scoop is guided, when being slid along the cross beam, by a pin 8 on the beam engaging in a slot 7 in the scoop, the pin serving as a pivot for the scoop as it tilts to discharge at the end of its outward sliding movement along the beam. Movements of the scoops relative to the beam are caused by piston cylinder units 3 connected between the scoops and the beam. Additional guidance of a scoop during part of its movement along the beam is provided by rollers on a lever pivoted to the inner under surface of the scoop engaging in a guideway on the beam. In the second embodiment each scoop is pivotally connected to the cross beam by a double arm and a telescopic arm, the arms being spaced longitudinally of the scoop and beam to initially form a parallelogram arrangement permitting the scoop to be swung away from and along the beam on extension of the piston cylinder unit until the double lever engages a stop. Thereafter the telescopic arm extends against an internal spring on further actuation of the jack to cause pivotal discharging movement of the scoop. The beam is pivotally connected to the ends of transversely disposed swing arms mountable on the vehicle and to a tilt ram pivotally connectable to the vehicle.
Patent GB-1152275-A (GB)
Title: Bell Striker Reciprocating Motor
IPC: G10K1/064
Filed: 1967-03-15
Abstract: 1,152,275. Bell striker reciprocating motor. EDWARDS CO. Inc. 15 March, 1967 [6 Sept., 1966], No. 12085/67. Heading G5J. [Also in Division H2] A bell striker reciprocating motor 10 comprises an electromagnet having a winding 14 and a plunger 16, a permanent magnet 13 at one end of the winding biasing the plunger toward that end, and a spring 17 biasing the plunger toward the other end, whereby the plunger is actuated with a reciprocating movement when the electromagnet is energized with alternating current, the bias of the spring and of the permanent magnet both varying exponentially and in the same sense throughout the operating stroke of the plunger. One face of magnet 13 is held against the end 12c of a U-shaped magnetic member 12, between the legs 12a, 12b by flanges 22 on a spool 15. The other face carries a polepiece 19 co-operating with the plunger through an air gap. The spool 15 is formed with a central guide sleeve 23 for plunger 16, a slot (24) extending across the right-hand end of spool 15 to provide an air vent. A magnetic sleeve 18 extends through a laminated polepiece 20 which is slotted into the member 12. Spring 17 has a large end mounted on sleeve 18 and a small end engaging a washer stop 27 on plunger 16 and bell striker 16b. Alternating current supplied to winding 14 sets up a magnetic field that alternately aids and opposes the magnetic field of magnet 13 reciprocating the plunger at the A.C. frequency.
Patent GB-854037-A (GB)
Title: Mixing machine
IPC: B01F7/04
Filed: 1959-04-10
Abstract: 854,037. Batch mixing machines. REIFFEN, E. A. April 10, 1959 [April 23, 1958], No. 12128/59. Class 86 A batch mixing machine has a horizontal cylindrical container 1 with a rotatable axial spindle 2 having multi-armed beaters or toothed wheels 3 which rotate between rows of bars 5; the bars extend round the spindle through an angle which is less than 120 degrees. The intrusion into the container of each row of bars may be adjusted by racks 7 and pinions 8 operated by a shaft 9; the container may be connected on collars 11 and angularly adjusted as by a worm and worm wheel 12. The beating arms are flat on one face and radiused on the other so that their action varies with direction of rotation (see Fig. 5, not shown). A jacket for heating or cooling is described together with a method of mounting the bars in pairs in an insert which enables them to be easily changed, and their activation adjusted by a screw spindle (see Fig. 6, not shown).
Patent GB-451130-A (GB)
Title: Improved process for direct production of propylene oxide
Filed: 1935-04-24
Abstract: Propylene-oxide is produced from a mixture of propylene, oxygen, and a diluent at a temperature above 200 DEG  C. by contact with silver containing small quantities of gold and/or copper. The temperature may be 300--375 DEG  C.  In examples: (1) propylene, air, and carbon dioxide are employed, the propylene oxide being absorbed in active carbon or dissolved in water; (2) the same process is effected at 50 atmospheres pressure; (4) propylene, air, and steam are employed; (5) colloidal, silver containing a small proportion of gold and/or copper is placed in a high pressure tube full of water, propylene being pumped in to dissolve in the water; the tube is then heated to 300--375 DEG  C. and air is forced in.  Specification 397,161 is referred to.  The Specification as open to inspection under Sect. 91 includes the use of silver as the catalyst.  This subject-matter does not appear in the Specification as accepted.
Patent GB-950875-A (GB)
Title: Improvements in or relating to a temperature control system, particularly for fluid-filled baths
Inventor: TOWNSON LESLIE TREMAYNE
IPC: G05D23/20
Filed: 1961-04-06
Abstract: 950,875. Automatic temperature control systems. TOWNSON & MERCER Ltd. July 2, 1962 [April 6, 1961], No. 12376/61. Heading G3R. To prevent overshoot of temperature in a heating bath or oven 11, radiant heat either from a heater 12 or a separate adjustable source 13 which may be directional impinges on the temperature sensitive element. In an example given the radiant source 13 has a rating of 5 W and the heater 12 is rated 150 W.
Patent GB-311761-A (GB)
Title: Processes for the manufacture of porous ceramic articles or products
IPC: C04B38/06
Filed: 1929-04-22
Abstract: 311,761. Lahaussois, R. May 16, 1928, [Convention date]. Drawings to Specification. Plastic compositions; rendering porous or spongy.-Porous ceramic articles such as filters &c. are made by incorporating crushed carbon &c.,- which may have been moistened with an alkali liquid in the mix, and subjecting the moulded article to two firings, first at a high temperature exceeding 1200‹ C. in a reducing atmosphere, while located in an airtight chamber by leaving between it and the walls of the chamber spaces filled with a reducing agent such as carbon, then at a lower temperature, e.g. between dark and' glowing red, in an oxidizing atmosphere which burns out the combustible material and allows. any alkali contained therein to form an enamel coating each cell and ensuring cohesion.
Patent GB-651537-A (GB)
Title: Improvements in or relating to telegraph and like radio transmitters
Inventor: MORTLEY WILFRID SINDEN
IPC: H04L27/04
Filed: 1948-05-05
Abstract: 651,537. Keying carrier frequencies. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 5, 1948, No. 12421. [Class 40 (v)] In a radio telegraph transmitter employing a keyed amplifying stage, radiation during spaces is minimized by the use of a rectifier and load resistance which are effectively in circuit only during the space periods. Carrier is supplied at 2, 3 to the inner grid of a pentode or tetrode amplifier valve 1 having a tuned anode circuit 18 and an output terminal 17. Anode current is fed to the valve through a series resistance 19, and keying voltage is supplied at 12 to the screen-grid 10. A rectifier 21 is connected between a tap 22 on the tuned circuit 18 and the junction of resistors 23, 25 connected between HT + and the cathode. During marks the rectifier 21 is non-conducting, but during spaces the anode current is cut off causing the D.C. voltage at point 22 to rise, this rendering the rectifier 21 and putting a load across the tuned circuit 18.
Patent GB-330075-A (GB)
Title: Improvements in polarized light apparatus
IPC: G03B21/10
Filed: 1929-04-22
Abstract: 330,075. Wood, F. G. April 22, 1929. Drawings to Specification. Optical-projection apparatus comprising three units on independent mounts which can be fitted together., has a reflection polarizer on the centre reversible mount, on another mount a condenser system, and on the third mount another condenser system, the object in an adjustable carrier, a projecting lens and an analyzing prism.
Patent GB-234277-A (GB)
Title: Improvements in drain plugs for lifeboats
IPC: B63B13/00
Filed: 1924-05-21
Abstract: 234,277. Logan, W. May 21, 1924. Leakage, removing.-A drainage plug for lifeboats comprises two members a, b which when screwed together form a lining for a hole in the bottom and constitute a chamber in which works a valve c which, when the boat is water borne, makes contact with a valve seating formed on the upper member. The valve may be maintained in its closed position by screwing up a wing nut d whch works on a screwed extension of the valve.
Patent GB-653761-A (GB)
Title: Improvements in the manufacture of isopropyl benzene hydroperoxide
IPC: C07C409/10
Filed: 1948-05-06
Abstract: In the oxidation of isopropylbenzene to the hydroperoxide in the liquid phase by means of oxygen between 120 DEG  and 135 DEG  C. with vigorous agitation in the absence of added catalysts, the risk of explosion in the gas space above the reaction mixture when using an excess of oxygen is materially reduced by introducing steam therein; the amount of steam depends on the operating temperature and is about 28 per cent of the volume of the gas space (after deducting isopropylbenzene vapour) at 120 DEG  C. and about 7 per cent at 130 DEG  C.  The oxygen is introduced as an oxygen-containing gas of at least 50 per cent oxygen content and preferably 90 per cent or more. The steam may be introduced separately into the gas space or into the liquid, or may be mixed with the oxygen, containing gas; in the latter case, the concentration of oxygen in the gas should not fall below 50 per cent.  Alternatively, the steam may be generated by adding water to the reaction liquid, preferably in the form of an alkaline solution (e.g. sodium hydroxide), to neutralize any acidic by-products of the oxidation.  The water is also useful in absorbing the heat of reaction and as a medium for electrometric pH measurements to check the course of the reaction.  The steam issuing from the system retards loss of isopropylbenzene and after condensation of the issuing vapours the excess oxygen merely needs scrubbing with sodium hydroxide solution to render it fit for recycling.  The isopropylbenzene can easily be separated from the condensed water by decantation and used again.  An example is given to illustrate the invention, and tables show the safe limits of composition of the gas space at various temperatures.  The process of Specification 630,286 is disclaimed.
Patent GB-867509-A (GB)
Title: Method of coating rubber articles
Inventor: HOGG WILFRID HENRY
IPC: C08J7/043
Filed: 1957-04-17
Abstract: Surfaces of rubber articles are coated with the reaction product of (a) an organic compound having at least two -NCX radicals in its molecule, where X is oxygen or sulphur, and (b) a polyether or polythioether having at least two hydroxy groups in its molecule, said reaction product containing unreacted -NCX radicals but no cross-linking agent therefor, and the coating converted to a cross-linked condition.  The cross-linking may be brought about merely by leaving the coating exposed to the atmosphere, or may be initiated by heating.  Compound (a) may be an aromatic or alicyclic di-isocyanate.  Compound (b) may be a polyglycol or polythioglycol or a hybrid therebetween, a polydiglycol formal or the sulphur analogues thereof.  The preferred polyols are branched-chain polyalkylene ether polyols containing three or more chains each containing a plurality of alkylene oxide units and terminating in a hydroxy group.  Small proportions of an ester such as castor oil or a polyhydric alcohol may be added.  The coating may be applied to an unvulcanized article in which case vulcanization of the article and curing of the coating take place simultaneously.  The compositions may contain dyes or pigments.  In the examples, toluene, dicyclohexyl methane and triphenyl methyl diisocyanate are reacted with dehydrated poly-1, 2-propylene glycol or a tripropanolamine-propylene oxide reaction product.ALSO:Surfaces of rubber articles are coated with the reaction product of (a) an organic compound having at least two -NCX radicals in its molecule, where X is oxygen or sulphur, and (b) a polyether or polythioether having at least two hydroxy groups in its molecule, said reaction product containing unreacted -NCX radicals but no cross-linking agent therefor, and the coating converted to a cross-linked condition.  The cross-linking may be brought about merely by leaving the coating exposed to the atmosphere, or may be initiated by heating.  Compound (a) may be an aromatic or alicyclic di-isocyanate.  Compound (b) may be a polyglycol or polythioglycol or a hybrid therebetween, a polydiglycol formal or the sulphur analogues thereof.  The preferred polyols are branched-chain polyalkylene ether polyols containing three or more chains each containing a plurality of alkylene oxide units and terminating in a hydroxy group.  Small proportions of an ester such as castor oil, or a polyhydric alcohol may be added.  The coating may be applied by brushing, dipping or spraying; it may be applied to an unvulcanised article in which case vulcanisation of the article and curing of the coating take place simultaneously.  Examples are given of coating strips and sheets of rubber, footwear, tyres and a foam rubber cushion.
Patent GB-1154061-A (GB)
Title: Process for the Production of Oxalic Acid.
IPC: C07C51/275
Filed: 1967-03-17
Abstract: 1,154,061. Oxalic acid. RHONE-POULENC S.A. 17 March, 1967 [17 March, 1966], No. 12576/67. Heading C2C. Oxalic acid is prepared by oxidizing propylene by introducing to nitric acid at 10‹ to 40‹ C. and heating to 45‹ to 100‹ C., with the simultaneous removal of the nitrogen oxides. The nitric acid concentration in the solution is maintained in the range 50 to 75% by weight, and the molar ratio of propylene to 100% nitric acid maintained throughout at between 0À01 to 1 and 0À5 to 1. Oxygen or oxygen containing gas may be introduced before or during either heating stage, and an elevated pressure may be employed. The process may be continuous, and suitable reactor series are described.
Patent GB-851708-A (GB)
Title: Improvements in means for removably securing fire-guards in position in front of fire-places
IPC: F24B1/192
Filed: 1956-04-25
Abstract: 851,708. Fireguards. DAVIES, W. N. July 25, 1957 [April 25, 1956], No. 12608/56. Class 126. The sides of a domestic fireguard have pivotal arms or hooks 6 to engage sockets 8 on the grate, the arms or hooks facing inwardly towards each other when the fireguard is in position. Various forms of fireguards are described.