baber/WOPTO huggingface dataset:
Patent GB-464039-A (GB)
Title: Improvements in or relating to two-way telephone systems
IPC: H04B3/20
Filed: 1935-10-10
Abstract: 464,039. Two-way transmission. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., WASSELL, H. J. H., and WYKES, J. P. Oct. 10, 1935, No. 28004. [Class 40 (iv)] In a system, e.g. a wireless telephone station, in which only one path can be operative at a time, the control of both paths is effected by a single control valve or bank of valves in parallel co-operating with a single rectifier. As shown, the receiving path (not shown) is normally operative and its amplifiers derive their H.T. supply from the voltage drop in potential divider resistances 21, 22, bias being derived from the lead connected to the junction point of resistances 19, 20. Control of a transmitting amplifier is given by the voltage of the lead connected to the left-hand end of 19. The potential divider is fed from a transformer 17b and rectifier 17a through a valve 16. When speech for transmission arrives at circuit 1, an adjustable portion is passed on by the amplifier 3 to the transmitting circuits connected to 7a and an adjustable fraction of this is amplified at 9 and rectified at 15 so as to make 16 non- conductive. The resulting change in the bias applied from the potential divider to the amplifiers paralyses the receiving amplifier and brings the transmitting amplifier to its optimum condition. The hang-over is controlled by circuit 13, 14.
Patent GB-1018061-A (GB)
Title: Memory system utilizing thin magnetic films
IPC: G11C5/02
Filed: 1962-07-20
Abstract: 1,018,061. Thin film magnetic storage devices. SPERRY RAND CORPORATION. July 20, 1962 [Aug. 7, 1961], No. 28034/62. Heading H3B. [Also in Division H1] A thin magnetic film has a plurality of threshold values separating different magnetic states. An external field between the first threshold H R  and the second threshold H N  is sufficient to cause rotation of domain walls if they are present but not to cause the formation of new domain walls. An external field between H N  and the third threshold H D  is sufficient to cause the formation of domains and a field above H D  is sufficient to align all the domains so that no domain walls are present. To store a " one ".in the film a pulse such as that shown in time T 3  of Fig. 2 is applied switching the film to the state in which domain walls are present. A read signal is shown in time T 4  which only produces an output signal in a sense winding if domain walls are present. An erase signal is shown in time T 11  which aligns the domains so that no signal is produced by a read signal. The signal shown at T, is a " write zero  signal as it produces no output when read but a " one " cannot be written into the memory by a negative pulse until an erase signal is applied to reverse the magnetism. Storage elements may be constructed, as shown in Fig. 5, by applying the film to a substrate and two conductors may be deposited over the film, separated from it and from each other by a layer of insulation. Alternatively the conductors may be part of a printed circuit which may be mounted adjacent the film with a layer of insulation between. A matrix using this type of element is described (Fig. 4, not shown).
Patent GB-898752-A (GB)
Title: Improvements in or relating to the production of dried food products
IPC: A23L27/10
Filed: 1958-09-01
Abstract: Food in liquid form is charged under superatmospheric pressure with an inert gas, e.g. carbon dioxide or nitrogen, in which aromatic constituents of the food have previously been entrained, and the mixture so obtained is spray-dried to yield a free-flowing powder. According to an example, a fully aromatic, readily-soluble, dry raspberry powder is prepared by passing carbon dioxide, loaded with aromatic constituents of raspberries, under superatmospheric pressure into a 30% concentrate of raspberry juice and spray-drying.  In a further example, the gases evolved upon the roasting of coffee beans were blown under superatmospheric pressure into a concentrated infusion of coffee beans and the mixture of coffee concentrate and roasting gases thus formed was spray-dried to yield a pulverulent coffee extract.
Patent GB-153569-A (GB)
Title: Improvements in spring suspensions for motor vehicles
IPC: B60G11/36
Filed: 1920-10-04
Abstract: 153,569. Jousse, V. L. Oct. 31, 1919, [Convention date]. Duration of oscillation, increasing.-Relates to auxiliary spring devices for the suspension of motor-vehicles of the kind in which the auxiliary spring device remains latent so long as the suspension spring is in its position of equilibrium, but when the spring is moved from that position becomes effective by adding to or deducting from the sustaining action of the suspension spring according as the wheel encounters a hollow or an elevation respectively. According to the invention, the auxiliary spring device comprises a spring or springs attached to a fixed point on the vehicle frame and to a crank connected to the suspension spring. As shown, a lever 1 is secured to the shaft of a crank 2 running on ball-bearings 3, 4 in a casing 5 provided with a cover 6 and secured by screws at 14, 15 to the frame of the vehicle. The crank 2 is connected by two springs 12 and bearing-pieces 13, 10 to a pin 9 fixed to the casing, the ball end of the lever 1 is connected by a link to the suspension spring. If the suspension spring is expanded by the wheel entering a hollow, the crank is moved from the dead-centre position and the springs 12 successively increase the expansion of the suspension spring and tend to sustain the vehicle body, retard the compression of the suspension spring to the dead-centre position and then increase it, thereafter alternately retarding and increasing the spring movements until the oscillation ceases. If the wheel encounters an elevation, the springs 12 initially increase the compression of the suspension spring.
Patent GB-173605-A (GB)
Title: Improvements in and relating to aluminium alloys and their manner of preparation
IPC: C22C21/00
Filed: 1920-10-04
Abstract: 173,605. Burden, E. Oct. 4, 1920. Alloys.-In a method of preparing aluminium alloy, particularly for use in soldering, brazing, or tinning aluminium or its alloys, one of the ingredients, preferably the aluminium, is used in the form of granules or flakes coated with copper. Aluminium may be melted under borax and poured over an inclined sieve into a coppersulphate solution, the resulting copper-coated flakes being afterwards coated with paraffin wax or the like. Zinc and tin are then separately melted and poured over a sieve into paraffin wax. Alloys are then made from various proportions of the three prepared metals by first melting the aluminium and adding thereto a mixture of the zinc and tin.
Patent GB-737585-A (GB)
Title: Improvements in or relating to whips, riding and hunting crops and similar articles
Inventor: BOYD DOUGLAS ARTHUR
IPC: B68B11/00
Filed: 1952-11-08
Abstract: 737,585. Whips and hunting crops. ZAIR, Ltd., G. & J. Oct. 26, 1953 [Nov. 8, 1952], No. 28197/52. Class 62. A flexible and resilient whip core is formed by longitudinally - arranged glass fibres which are permanently bonded together, e.g. by a synthetic resin or plastic, the volumes of glass and bonding materials being substantially equal. Glass fibres of between 0.015 and 0.020 mm. diameter are preferably used and are incorporated in a whip core 10, Fig. 3, of circular cross - section which tapers from a diameter of 8 to 10 mm. to between 2 and 3 mm. over a length of 660 to 760 mm. The core is covered by a single spiral layer of cotton, hemp, flax or nylon twine 11 which is bonded to the core during manufacture by application over a tacky core-coating of pitch pine. The twine layer is then impregnated with a clear synthetic rubber solution and covered by spiral layers of paper 12 and outer braiding 13. The same construction is used in a hunting crop, Fig. 5, which has a uniform diameter of about 9 mm., the crop handle being threaded on to a hollow cane plug secured to the core by pitch pine. In an application to trotting and polo whips which may have a maximum diameter of about 5 mm., the butt end of the core may be reinforced by external cane splicing 20, 21, Fig. 7. At the striking end of the whip, the overall diameter may be reduced by terminating the twine layer short of the end and continuing with a layer of flax tow. Alternatively, the twine may be omitted and the flax tow layer used throughout.
Patent GB-728772-A (GB)
Title: Improvements in or relating to lubricating grease compositions
IPC: C10M169/00
Filed: 1952-11-10
Abstract: Cracked petrolatum (approximately C18H36) is sulphonated with a ClSO3H ether complex and the reaction product neutralized with NaOH solution.  Isopropyl alcohol is added and the solution is desalted with Na2CO3.  The supernatant layer is separated, water added and the alcoholic solution extracted with petroleum ether.  The alcoholic solution is drum dried to yield a sodium sulphonate having a chlorine content of 4.91 per cent.ALSO:A lubricating grease composition comprises a lubricating oil thickened with from 5-30 per cent. by weight of a metallic soap of an aliphatic sulphonic acid having 10-20 carbon atoms in the aliphatic portion thereof, and which is prepared by the sulphonation of a C10-C20 olefin obtained by the cracking of petroleum wax or petrolatum or by the polymerization of lower olefins.  Polymerized olefins from the Fischer synthesis, polyethylenes, polypropylenes and polybutenes may be sulphonated. Unsubstituted or chloro sulphonic acids may be used, and the soap may be an alkali or alkaline earth metal soap.  Soaps of high molecular weight fatty acids such as hydrogenated fish oil acids, stearic acid and oleic acid, and salts of low molecular weight acids such as acetic ethoxy-propionic, acrylic and furoic acids may also be added to the composition; the sodium soap of hydrogenated fish oil acids and sodium acetate are referred to. Lubricating oils specified are mineral oils and synthetic oils such as esters of monobasic and dibasic acids, ethers, glycols, glycol ethers, glycol esters and complex esters.  Petroleum resins may also be added to the composition.  Specification 689,836 is referred to.
Patent GB-642033-A (GB)
Title: Improvements in or relating to apparatus for indicating time displacement between two intercalated pulse trains
Inventor: MANSON MARTIN LE MESURIER
IPC: G01S1/20
Filed: 1947-10-22
Abstract: 642,033. Radio navigation. MINISTER OF SUPPLY. Oct. 22, 1947, No. 28289. [Class 40 (vii)] Apparatus for indicating the time displacement between a first train and a second train of intercalated pulses comprises a recording and transcribing mechanism having mechanical means for varying the delay between recording and transcription, a coincidence circuit to which the transcribed first train and the second train are fed and which controls the operation of said mechanical means to bring the pulse trains fed thereto into coincidence, and an indicating device driven by said mechanical means and arranged to indicate the time displacement. The indicating apparatus is suitable for use with a Loran hyperbolic navigation system receiver and may include a disc A having a recording layer of magnetic material round its periphery. This disc is driven at constant speed by a motor M1 and a fixed recording head B records on it the " a " series of pulses separated by gate circuit aG. A transcription head C applies the " a pulses from the disc to a coincidence circuit CA to which is also applied the " b " series pulses from gate circuit bG, the output of CA being a voltage proportional to the difference between the recorded signal delay and the time displacement. This output voltage causes motor M2 to move head C round the disc in such direction as to cause the voltage to become zero and an indicator RC attached to the worm drive mechanism E shows the time displacement. D is an erasing head. It is pointed out that two such indicators, which may have their recording discs driven by the same motor are required to give position fix information. A left-right meter may be used in connection with the indicator if a further recording apparatus having pulses of the time displacement of the desired course recorded thereon is used to feed an output to a coincidence amplifier fed also with the actual time displacement, the output voltage of the coincidence amplifier operating the meter.
Patent GB-248077-A (GB)
Title: Improvements in or relating to the carbonisation of coal and apparatus for use therein
IPC: C10B37/04
Filed: 1924-11-27
Abstract: 248,077. Illingworth Carbonization Co., Ltd., and Illingworth, S. R. Nov. 27, 1924. Charging.-In the process of carbonizing coal vibration is imparted to the retort during the period of charging and/or during the process of carbonizing before the coke structure has been formed, the effect of the vibration being greatly increased if pressure is applied to the top of the fuel. The retort may be vibrated by causing feed tubes 11 to be rocked so as to strike opposite sides of the retort 12 in turn, the tubes 11 being secured to a saddle 13 keyed to a shaft 130 which may be rocked, and on which the fixed radial rods 131 for agitating the charge in the hopper 10. Definite amounts of fuel are supplied to the retort 12 from a rotary valve 15, Fig. 5, through a sleeve 16 which enters the retort, the sleeve being balanced by a weight 160. Hammers 18 actuated by snugs 19 on a shaft 190 driven by a chain 20 from the feed valve 15 strike the retort 12. A swinging plate 21 actuated by a crank handle on a prolongation of one of the bosses 210 forms an additional or alternative means of vibration. A hopper 10, Fig. 8, supplies fuel to a swinging shoot 22 mounted on a shaft 220, the shoot striking the walls of the retort as it swings from one side to the other, the hopper being provided with a valve 23 operated by a handle 230. In the position of the shoot shows in full lines the fuel in it is at the angle of repose but falls into the retort when swung into a vertical position. In another modification, vertically-movable hammers interconnected with its charging means strike the upper ends of the retorts. The Provisional Specification refers to Specification 245,190.
Patent GB-363723-A (GB)
Title: An improved carburettor
IPC: F02M23/03
Filed: 1930-09-23
Abstract: 363,723. Spray carburetters. BODEMANN, J., 38, Esplanade, Hamburg, Germany. Sept. 23, 1930, No. 28504. Convention date, Sept. 23, 1929. [Class 7 (iii).] The carburetter body a comprises a mixture outlet z controlled by a throttle valve n, a secondary air passage b controlled by a valve o connected to the throttle valve and a primary mixture passage d which delivers into the secondary passage through an annular slot m. The primary passage contains a suctionactuated flap s adapted, through a lever k, to raise a fuel valve g loaded by a spring a<1>. This valve is also adapted to be opened upon opening the valves n, o through a forked lever i<1> lifted by a link i actuated by a cam on the shaft o<1>. The control portion of the fuel valve g consists of an interchangeable needle h. Exhaust gases flow through a space c between the primary and secondary chambers.
Patent GB-365191-A (GB)
Title: Improvements relating to devices for cutting string and the like
IPC: B26B27/00
Filed: 1931-05-20
Abstract: 365,191. String cutters. McLEAN, J. and COGGANS, J., 12, Woodside Terrace, Glasgow. May 20, 1931, No. 28539/30. [Class 30.] In a string cutter comprising a blade-carrying frame 1 embracing the first finger 2 of one hand, the frame is completed on one side by a flat coiled tension spring 9 which renders it self-adjusting to fit different sized fingers. The frame has an extension 5 lying below the second finger 6 and, diametrically opposite thereto, a cavity 7 to which is screwed a blade 3, protected on one side by the frame and on the other by a horn which extends beyond the cutting edge.
Patent GB-896091-A (GB)
Title: Cartons for bottles and the like
IPC: B65D5/49
Filed: 1960-08-18
Abstract: 896,091. Cartons for bottles. UNIPAK CARTONS Ltd. Aug. 18, 1960 [Sept. 21, 1959], No. 28699/60. Class 18. A box has a wall structure with an interior assembly fixed to the wall structure, the assembly defining rows of adjacent compartments and comprising two unitary members one of which extends along the longitudinal axis to form a longitudinal partition secured to the opposite end walls and the other secured to the opposite side walls to form complementary transverse partitions with brace portions extending beneath the longitudinal partition. The box 10 has a wall structure 11 comprising side walls 13, 14, end walls 15, 16, a bottom 12 and a top closure including folding side flaps 20, 21 and end flaps 23, 24. The top closure may be dispensed with. The interior assembly consists of two unitary members one of which forms a longitudinal partition, comprising panel members 34 and 53, the other a plurality of transverse partitions 37 with the two unitary members defining rows of adjacent compartments or cells. The panel member 34 is provided with integral flaps 45, 46 for attachment of the longitudinal partition to the adjacent end walls 15, 16 by means of glue or staples. The longitudinal partition is made from a single blank 55 and provided with a slot 59 for a handle 50, the panel members 34 and 53 are folded about a line 56 to form an abutment for the handle shoulders 66, 67. To facilitate the raising of the handle into the carrying position the edges of the side flaps 20, 21 do not meet entirely and form a slot 26 and the side flap 21 is provided with a finger tab to facilitate the raising of the closure flaps. The second unitary member consists of transverse partitions 37 made from a blank 88, which is scored and cut along lines 94 and 90, 91, 92 and folded along a common line 99 to form transverse partitions 37, the lower central sections 75 of which pass beneath the longitudinal partitions engaging the slots 84, provided in the latter, to prevent lateral displacement. The outer edges of sections 76, 77 forming partitions 37, are provided with foldover wing tabs 79, 80 and secured to side walls 13, 14 by glue or staples.
Patent GB-254591-A (GB)
Title: Improvements in or relating to variable electric condensers
IPC: H01G5/38
Filed: 1925-11-14
Abstract: 254,591. Rushen, P. C., (Pacent Electric Co., Inc.). Nov. 14, 1925. Condensers have a movable element comprising a rotatable shaft composed of glass and condenser plates carried by said shaft. The metal end plates 2, 3 are connected by rods 4 carrying the fixed plates 6, and formed with 'bearing portions 2<a>, 3<a> for the shaft 8 of pyrex glass. The moving plates 9 are mounted on a metal bushing 10 split at two or three points 10<a> and provided with a tapered thread 10<b>, nuts 12, 13 likewise with tapered threads, functioning when tightened up both to clamp the plates 9 and to contract the bushing 10 about the shaft 8. A binding-post 14 may be connected to the bushing by a flexible connection 15. To avoid machining the glass, the operating, shaft 16 has an integral split sleeve 18 with an external tapered thread, which sleeve is contracted on to the shaft 8 by a nut 19. An extension shaft 20 operating another condenser may be similarly connected to the shaft 8. In the form shown in Fig. 2, the tubular bushing 21 is split and threaded at each end for engagement by nuts 22, 23, of which 22 has a groove 22<a> for guiding the flexible connection. In Fig. 3 is shown a form wherein two split tapered bushings are screwed into another bushing 26 and thereby contracted on to the shaft. The plates 9 are secured on the exterior of the bushing 26 by means of a nut 27 engaging an external thread thereon.
Patent GB-648028-A (GB)
Title: Improvements in electric condensers
IPC: H01G2/08
Filed: 1948-11-09
Abstract: 648,028. Condensers. HANSSON, B., ZETTERSTEDT, B., and ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAG. Nov. 9, 1948, No. 29059. [Class 37] A multiple unit condenser with improved cooling has condenser roll units 7 and 10 of which the protruding foil electrodes 8 and 9 press against metal sheets 5 and 6, preferably of copper. The sheets substantially cover the layers of insulating material 3 and 4 which separate the condenser rolls from the walls of the container 1. and 2. Specification 609,779 is referred to.
Patent GB-246803-A (GB)
Title: Improved apparatus for distilling fatty acids
IPC: C11C1/10
Filed: 1925-11-18
Abstract: 246,803. Bollmann, H. Feb. 2, 1925, [Convention date]. Liquids, treating with gases. - Fatty acids are distilled by being passed from an inlet 4 down a column 1 filled with Raschig rings &c., and maintained under reduced pressure., up which a current of superheated steam passes from an inlet 3. To prevent steam laden with fatty acid vapours from passing downwardly in the column, partitions 2 with central openings are placed across the column. The column is preferably made of chamotte surrounded by a metal jacket. Specification 218,910 is referred to.
Patent GB-1092568-A (GB)
Title: Dispenser
Inventor: COLLINS DOUGLAS
IPC: B05B7/14
Filed: 1966-06-29
Abstract: 1,092,568. Spray-producers. SUTTON & SONS Ltd. June 29, 1966, No. 29208/66. Heading B2F. A portable dispenser suitable for distributing a powder such as a fertilizer or grass seed comprises a hopper 1 provided with a plurality of generally segmental-shaped orifices 5 in its base, a disc member 6 restrained from rotational movement with respect to the hopper and disposed so that it underlies the orifices, and means 10-14 whereby the distance between the disc and the hopper base may be varied from a minimum of zero. The hopper is carried by a handle 3 and may be rested on a skirt 4 which assists the distribution of the powder &c. The disc is supported by a column 7, 9 having a threaded upper end 10 engaged by an internally threaded hand wheel 12. A click-stop 13 engages a notch in the hand wheel and indicates the number of rotations imparted thereto. Graduations on the hopper indicate the level of its contents and a member 8 of square cross-section prevents the disc 6 rotating. The dispenser may be manually oscillated.
Patent GB-319781-A (GB)
Title: Improvements in dog collars
IPC: A01K27/00
Filed: 1929-09-26
Abstract: 319,781. Anciens Etablissements Neveu. Sept. 28, 1928, [Convention date]. Dog collars.-A dog collar comprises a ring a of leather or other material preferably of circular cross-section having at one end a metallic tube b adapted to receive a plug d on the other end provided with spring-pressed studs f for engagement in one of the pairs of holes c, c<1>, c<2> in the tube to fasten the collar. The tube b may be used as an address plate.
Patent GB-1338425-A (GB)
Title: Process for the preparation of perfluorinated compounds
IPC: C07C17/367
Filed: 1971-06-22
Abstract: 1338425 Cyclic perfluoro-olefins FARBWERKE HOECHST AG 22 June 1971 [24 June 1970] 29257/71 Heading C2C A pyrolysis process for the preparation of at least one cyclic perfluoro-olefin having 4-6 ring members and/or at least one perfluoroalkylsubstituted cyclo perfluoro-olefin having 4-6 ring members, both being of the formula C n F 2n-2 , in which n is 4-12, comprises thermally cracking at least one acyclic polyfluorocarbon having a molecular weight of at least 500, at 500-1000‹ C., the maximum pressure during cracking being from 50 to 300 atm. gauge, and subsequently separating the reaction products. Suitable starting materials are, for example, polytetrafluoroethylene and copolymers of tetrafluoroethylene with other fluoro-olefines. Some byproducts of formula C n F 2n  +2  and C n F 2n  may also be obtained.