baber/WOPTO huggingface dataset:
Patent GB-780324-A (GB)
Title: Improvements relating to wired electrical signal distributing systems
Inventor: GARGINI ERIC JOHN
IPC: H04N7/10
Filed: 1954-05-18
Abstract: 780,324. Distributing music &c. ELECTRIC & MUSICAL INDUSTRIES, Ltd. May 6, 1955 [May 18, 1954], No. 14511/54. Class 40 (4). In a wired signal distributing system two carrier waves of the same frequency, but modulated with different intelligence signals, are transmitted by different cable circuits, between which cross-talk is liable to occur, to at least one receiver ; the carrier waves being maintained in phase quadrature, and the (or each) receiver having switching means for selectively feeding the carrier wave from either of the cable circuits to the same demodulator so that either of the different intelligence signals may be derived selectively from the demodulator of a receiver. As shown, the invention is applied to the transmission of video signals and to the transmission of scanning signals in a two-programme television relay system. The distributing unit 1 has two sections each of which receives and relays one television programme. In each section a broadcast television waveform is received by an aerial 4 and applied to a receiving circuit 5, which feeds the video signals to a conductor 7 and the synchronizing signals to a conductor 8. The video signals are fed via an amplifier 9 to a modulator 10 supplied with a carrier wave of 5.42 Mc/s. from oscillator 11. The modulated carrier is applied to a filter 12 which passes the lower sideband and a vestige of the upper sideband to a pair of conductors of the star-quad cable 22. The synchronizing signals are fed to a scanning signal generator 15 which produces a single scanning waveform from which line and frame frequency scanning signals can be derived at the receivers by simple circuits, and which may, for example, be of the construction described in Specification 704,141. The scanning waveform is applied to a modulator 16 supplied with a carrier wave of 1 Mc/s. from oscillator 17, the modulated carrier wave being fed to the same pair as the corresponding video signals. The carrier waves are fed to the modulators 10a and 16a of the lower section through phase-shifting networks 19 and 20, respectively, which impart a 90 degree phase shift, so that the modulated carrier waves produced by the two sections are maintained in phase quadrature. The output of the upper section is fed to pair 14, and that of the lower to pair 21. At each receiver 3, a manual switch 22 - s provided to connect up pair 14 or 21, and the selected modulated video carrier is amplified at 23, and demodulated in passive modulator 24. The video signals are then amplified at 25 and applied to the modulator electrode of a cathoderay tube 26. The selected modulated scanning carrier is amplified at 27 and modulated at 28, the scanning waveform then being applied to the scanning circuit 29 of the receiver which is preferably of the construction described in Specification 775,871, [Group XXXV]. Specification 723,123 is referred to in the Provisional Specification.
Patent GB-893532-A (GB)
Title: Improvements in or relating to the forming of blanks
IPC: B26D3/08
Filed: 1960-04-26
Abstract: 893,532. Cutting-apparatus. SAYFORD CO., F. M. April 26, 1960, No. 14516/60. Class 31 (1). [Also in Group XVI] Apparatus for forming blanks from paper or similar compressible sheet material comprises means operative on the material along a line defining the blank to compress the material without concomitant cutting of the same and to a degree such that flexing of the material after said operation causes the blank to break from the remaining material along said line. Paper stock 11 is fed through a pair of feedrollers 12, 12<SP>1</SP> and then through cup blank forming rollers 13, 14. The roller 13 includes a plurality of forming or compressing elements 15 each comprising an arcuate base 41, Fig. 5, and a rounded peripheral ridge 42. The elements 15 are separated by a filler material comprising wood blocks 43 and a surface 44 of cork or similar material. The roller 14 includes a plurality of make-up plates 14<SP>1</SP>. After the paper stock has passed between the rollers 13, 14, the stock with the blank still attached passes beneath a stripping-plate 16 having a curved trailing edge 17. The waste stock 11<SP>1</SP> is pulled in an upward direction as indicated by the arrow 18 and this causes the blank 10 to separate from the waste 11<SP>1</SP> at the edge 17 of the plate 16 and continue in the plane of movement of the stock 11. Successive portions of the edges of the blanks 10 are separated and the severed blanks are fed to a moving belt 19. The blanks are then engaged by an upper moving belt 22.
Patent GB-758568-A (GB)
Title: Improvements in or relating to board games
Inventor: STREETER VICTOR
IPC: A63F3/04
Filed: 1954-06-21
Abstract: 758,568. Board gaines. STREETER, V. May 5, 1955 [June 21, 1954], No. 14622/54. Class 132(2) Apparatus for playing a board game comprises a squared board divided as shown into "strike" squares S and "land" squares L, the latter being each divided into four numbered triangles and a triangle 7 being disposed adjacent each peripheral area S. In play, a strike card SC is placed on each square S and the players play tokens M according to rules, placing them on the triangles with the object of surrounding a square S. Squares S are raised relative to the rest of the board. According to the Provisional Specification, this may be done by moulding or by fixing the squares S to an underlying sheet marked with the squares L.
Patent GB-845919-A (GB)
Title: Transportable machine for distributing insecticides or the like on plants
IPC: A01M7/00
Filed: 1958-05-08
Abstract: 845,919. Crop sprayers. PEARCH, L. C. (Kleinmotoren G.m.b.H.). May 8, 1958 [May 8, 1957], No. 14642/57. Class 69 (3). A machine to be hauled by a tractor includes a cylindrical tank 10 for liquid insecticide to be sprayed, with its front wall apertured and flanged to detachably receive a blower comprising an impeller 12 within a two-part casing 11. The rear part of the casing includes a convergent wall 14 which leads to an axiallyextending ejector tube 15 passing through the tank and projecting beyond its rear wall to which it is sealed. The outlet end of the air tube carries adjustable nozzles 17 to which insecticide is fed and from which it is sprayed by the air flow. The blower shaft is coupled to the crank-shaft of a single-cylinder I.C. engine 18, and a pump 20 for agitating the liquid in the tank and/or feeding it to the nozzles is fitted to the engine and driven therefrom by a belt. A removable bonnet 21 covers the engine &c. and the air entry part of the blower and supports a fuel tank 22. Instead of an I.C. engine a gearbox may be connected to the blower casing and provided with a socket for connection to the power take-off of the tractor. The wheeled axle 24 may be of adjustable length and adjustably clamped to the tank by straps; the ground clearance of the machine may be adjustable.
Patent GB-803447-A (GB)
Title: Work-handling means for power-presses and like machines
Inventor: RIDLEY HARRY HEYWOOD
IPC: B21D43/10
Filed: 1956-05-12
Abstract: 803,447. Work handling means for presses. PRESS GUARDS, Ltd. May 13, 1957 [May 12, 1956], No. 14843/56. Class 83 (4). A work-handling device for a power press or the like machine comprises a rigid substantially vertical arm 14 carrying at its lower end work-gripping means 29 and mounted to swing intermediate its ends on a pivot 15 guided for movement along a fixed path 12, the upper end of the arm being connected to an actuating lever 16 pivoted about a fixed point 17 and driven by a fluid-pressure motor 20. The device is secured on the press by a bracket 10; its arm 14 is telescopically adjustable and carries rollers 15 guided in fixed slots 12. The gripping means 29 is slidable along a substantially horizontal bar 26 by means of a double-acting air motor 28. The bar 26 is angularly adjustable on the end of the arm 14 by nuts 37. In operation the air motor 28 advances the gripping means 29 to close it on to a finished workpiece in the press which is then on its upstroke. After a predetermined time delay the motor 20 is energized to first raise the gripping means and workpiece and then swing them clear of the press along paths 31 or 32, Fig. 3 (not shown). A limit switch 40 is then tripped by the arm 14 or by lever 16 and this reverses the air motor 28 to retract the gripping means and release the workpiece and also connects the motor 20 to exhaust whereby the arm returns by gravity to its original position. The arm may be held in its raised position by a bar inserted in a hole 34. The device is timed to operate in synchronism with the press by a limit switch 46, Fig. 3 (not shown), actuated by a cam on the press crank-shaft and controlling the solenoid-actuated control valve of the air motors. Limit switches are also provided for stopping the press if the gripping means is not fully retracted.
Patent GB-120070-A (GB)
Title: Improvements in Electric Lamp Fittings.
Inventor: BONNELLA ALBERT JOHN
IPC: F21S8/00
Filed: 1917-10-15
Abstract: 120,070. Bonnella, A. J. Oct. 15, 1917. Candles, imitation; caps; holders.-A tubular standard f attached to a plug h is threaded externally to receive an adjustable screw holder for a lamp a having a shoulder a<1> at one-quarter or more of the length of the bulb from the cap. An opal glass tube b is pressed against the shoulder by a washer n and coil spring o bearing on the plug h. A split pin d on the lamp cap enters the standard, which consists of co-axial insulated tubes; or the pin may be threaded and the lamp-cap plain. The holder may be locked on the stem by a nut m. The plug h is provided with contacts and bayonetjoint pins i, or with a screwthread. According to the Provisional Specification, the screw holder may be replaced by a bayonet-joint holder, which may have indentations or spring fingers to assist in clasping the lamp. Reference h a s b c e n directed by the Comptroller to Specification 24971/12.
Patent GB-119906-A (GB)
Title: Improvements in or relating to Protective-devices for Electrical Cables or Cable-networks.
IPC: H02H3/17
Filed: 1917-10-16
Abstract: 119,906. Bisacre, F. F. P., and Merz & McLellan. Oct. 16, 1917. Protective arrangements.-In a protective system, not involving the use of split conductors or pilot wires, alternating electromotive forces are imposed on each feeder section in opposition, and having a frequency different from that supplied to the feeders. The trip coil circuits are tuned to the frequency of the imposed electromotive forces, or any suitable device adapted to respond to the required frequency may be used, such as a relay whose moving element moves only under impulses of the desired frequency. The feeder currents may be alternating or direct. As shown applied to an underground three-phase system, each end of a feeder section A is in series with the secondary C<2> of a transformer through the primary C<1> of which current of the required frequency is sent by a generator D. The generators D may be synchronized in any manner. Each feeder section also includes the primaries E<1> of transformers, the secondaries E<2> of which are in tuned circuits, including the trip coils H for operating the circuit breakers J. The coils H are adjusted so as not to respond to current of less than a predetermined value. Leakage current may pass through potential transformers K where such are used, the neutral points being earthed, or through impedances k. The application to an overhead system is described, the impedances k or transformers K being replaced by condensers, which it is said may perform a double function, being used with or as voltmeters or lightning arresters. The frequencies imposed may be different in different sections of the feeder system or network to enhance the discriminating action of the tripping devices.
Patent GB-316717-A (GB)
Title: Improvements in and relating to means for propelling air and water craft
IPC: B64C33/02
Filed: 1928-05-22
Abstract: 316,717. Potts, W. May 22, 1928. Propelling. - In a method of propelling aircraft, vibrating wings are employed and may be used for vertical ascent or descent, hovering, or to act as a brake. The wings are attached to a rotating cylinder and revolve with it and are arranged to have a power impulse in one direction followed by a return movement in a plane substantially transverse to that of the power impulse. During the return movement, the wings feather with the edges leading. In Fig. 4, 1 and 1<a> are rotating tubular shafts to the ends of which are attached discs, 33, mounted diametrically, to which are attached wings 9. A single throw crank is mounted in bearings attached to ring 30 with its axis on a diameter of shaft 1 and parallel to the axis of the disc 33. The ring 30 fits slackly into a sleeve 29 which is guided by spindles 28. The crank pin 36 passes through a slot cut in disc 33. A cylinder 44 is rigidly connected to each tubular shaft, and piston rods and links passing through the shafts 1 and 1<a>, connect the piston to the bell cranks 47. The slotted ends of the bell cranks overlap pins 36. Compressed air is supplied to the cylinder controlled bv a piston valve 52, the ends of which are extended to make contact. with a normally fixed cam plate 58. As the cylinder rotates, the cam actuates the valve, giving an impulse stroke, the disc being rotated by the forked end of the bell crank. The action of this stroke is during a small fraction of a revolution of the tubular shaft and then the wing continues to rotate with feathering action to its initial position when there is another impulse stroke using the reverse side. The amplitude of the stroke may be varied by moving sleeve 29, so varying the distance between the axis of the crank pin and pivot 48. The line of action of the stroke may be varied by rotating the cam plates to cylinder by means of worm and worm wheel mounted on shaft 62. The disc 33 may be replaced by pulley 4<b>, Fig. 8. In this case the wing is mounted on pulley 4a attached to bearing arm 83, on the tubular shaft and the two pulleys are connected by a crossed wire rope.
Patent GB-1360915-A (GB)
Title: Method for removing the coatings from metal electrodes
IPC: C23G1/32
Filed: 1972-03-30
Abstract: 1360915 Coated titanium plates SOLVAY ET CIE SA 30 March 1972 [21 April 1971] 15015/72 Heading B2E [Also in Divisions B6 and C7] A coating of ruthenium dioxide and titanium dioxide is provided on a titanium plate by applying a solution of RuCl 3 , 3H 2 O and TiCl 4  in isopropyl alcohol and heating at 380 to tion of WCl 6  and H 2 IrCl 6  in dimethyl forma- 525C. In an alternative embodiment, a solumide is heated at 475C to deposit a coating of tungsten trioxide and iridium dioxide on a titanium plate. The coated substrate may be used as an electrode.
Patent GB-833332-A (GB)
Title: Improvements in or relating to self lubricating bearings
Inventor: BLAINEY ALAN
IPC: F16C33/20
Filed: 1955-05-25
Abstract: A method of manufacturing a self-lubricating bearing surface on a metal body comprises the steps of applying to a cleaned surface of the metal a layer of a suspension of particles of zirconium of a size of at least 2 microns in an evaporable medium, heating the metal body and the layer to cause evaporation of the medium, then heating the metal body and attached particles to a temperature of at least 900 DEG  C. in vacuo to cause the particles to become bonded to the surface of the metal body as a porous layer, allowing the heated metal and the porous layer to cool in vacuo, and subsequently impregnating and coating at least part of the layer with polytetrafluorethylene by applying a suspension of P.T.F.E. in water to the surface of the porous layer, drying off the water, and heating the bearing surface at approximately 400 DEG  C. for about 10 minutes.  Specification 826,938 is referred to.
Patent GB-545415-A (GB)
Title: New esters and their sulphonated derivatives
Filed: 1940-10-09
Abstract: 545,415. Lubricants. NATIONAL OIL PRODUCTS CO. Oct. 9, 1940, No. 15069. Convention date, Sept. 30, 1939. [Class 91] [Also in Group IV] Fatty acids having 6 to 22 carbon atoms are esterified with methallyl alcohol. The resulting esters may be sulphonated. In examples, methallyl alcohol is esterified with lauric, capric palmitic, stearic and caprylic acids, using ptoluene sulphonic acid or sulphuric acid as esterification catalyst. Sulphonation is effected with sulphuric acid or chlorsulphonic acid with acetic anhydride or ethylenedichloride as solvent. Ethallyl alcohol, 2-methylcrotyl alcohol, 3- methyl-3-butene-1-ol and 4-methyl-4-pentene- 1-ol are specified alcoholic components. Naphthenic and resin acids may be used. They may be used for lubricating textiles. The Specification as open to inspection under Sect. 91 comprises also the use, instead of methallyl alcohol, of any alcohol having the formula R 1  R, C=CR, (CH 2 ) # OH wherein R 1  and R 2  are hydrogen or alkyl having not more than 4 carbon atoms, R 3  is alkyl having not more than 6 carbon atoms and n is 1; 2 or 3. This subjectmatter does not appear in the Specification as accepted.
Patent GB-403292-A (GB)
Title: Improvements in and relating to weaving looms for continuous weaving in which the weft is inserted by means of pirnless shuttles
IPC: D03D47/24
Filed: 1933-05-25
Abstract: 403,292. Looms with stationary weft supplies. DEWAS, R., 120, Boulevard de St. Quentin, Amiens, Somme, France. May 25, 1933, No. 15133. Convention date, June 3, 1932. [Class 142 (ii).] Weft from a stationary supply is inserted from one side of the loom only by a dummy shuttle comprising a bifurcated body portion 1, Figs. 4 and 6 of triangular or trapezoidal cross section having a groove 4 disposed centrally in the surface that slides along the reed, a hairpin shaped spring clamp 5 being provided in the groove to engage the weft extending between the fabric and the supply. The shuttle is propelled through the shed by two driving discs 18, 19 positioned at the exit end of a chute 16 which with the warp shed forms a continuous circuit, the inertia of the shuttle being sufficient to bring it back to the picking device after each pick. The weft is released from the clamp by a depending blade 38 which passes between and forces apart the prongs of the clamp, the head 5<11> of the latter being bent out of the plane of the prongs to permit the shuttle to pass freely into the return conduit 16. The weft extending between the shuttle and the fabric may be drawn into the shed and cut by a blade 6 on the shuttle to produce a selvedge or it may be cut by a blade positioned on the loom frame at the side of the fabric if a fabric without a selvedge is desired.
Patent GB-1077908-A (GB)
Title: Process for the production of silica gels
IPC: C01B33/154
Filed: 1966-04-05
Abstract: A micro-spheroidal silica gel is prepared by mixing together (a) an aqueous solution of an alkali metal silicate having a temperature of 43 to 77 DEG  C. and containing 6 to 12% by weight silicate expressed as silica and (b) an aqueous solution of a mineral acid having a concentration greater than 4N in an amount sufficient to neutralize 40 to 55% of the a.m. silicate; permitting the mixture to gel, ageing the gel at 43 DEG  to 88 DEG  C. for 0.25 to 6 hours and then spray-drying the gel followed by washing the spray dried gel to remove soluble impurities and redrying the gel.  The product is said to have a pore volume of from 0.3 to 2.2 c.c./gm. and a surface area of 100-800 m.2/gm.  The preferred silicate is sodium silicate and the preferred mineral acid is sulphuric acid having a concentration of 20 to 50% by weight of H2SO4.  The acid may be added to the silicate over a period of 5 to 30 minutes.  Before or after ageing sufficient mineral acid, e.g. H2SO4 may be added to the gel to adjust its pH to 2.5 to 10.6.  Before drying, this aged and acidified gel may be treated with ammonia to adjust its pH to 4.5 to 9.5.  If desired, the gel at this point may be aged for up to 6 hours before spray-drying. The spray-dried gel may be washed with a solution of mineral acid of a concentration less than 5N or with a solution of an ammonium salt of a strong acid, e.g. an ammonium sulphate solution of concentration 0.5 to 2 DEG  B<\>ae or a solution containing 0.5 to 5% by weight ammonium sulphate.  The washed gel may be dried at 120-260 DEG  C. to a moisture content of 5 to 15% by weight.
Patent GB-1282653-A (GB)
Title: Diagnostic composition for the detection of nitrite
Inventor: ELFAST ROYAL ALBERT JR
IPC: G01N33/84
Filed: 1970-03-31
Abstract: 1282653 Diagnostic compositions R A ELFAST JNR 31 March 1970 [14 April 1969] 15304/70 Heading B1X A diagnostic composition for nitrite comprises (1) a compound selected from sulphanilic acid (A) and sulphanilamide (C) and (2) a compound selected from α-naphthylamine hydrochloride (B) and N-(1-naphthyl ethylene diamine dihydrochloride (D), the proportions by weight of A:B or C:B being at least 250:1, or the proportions by weight of C:D or A:D being at least 150:1. The composition may also contain sodium chloride and a further crystalline water-free acid such as citric or tartaric acid.
Patent GB-379311-A (GB)
Title: Improvements in or relating to the manufacture of goods of or containing rubber
IPC: C08C1/14
Filed: 1931-05-26
Abstract: Goods are made from aqueous dispersions of rubber and the like by converting them into flocculent or granular precipitates and then consolidating the precipitate by filtration.  The flocculent precipitates are obtained by effecting the coagulation in the presence of a large amount of water with or without a certain amount of colloidal or restraining substance.  A variety of common coagulating agents may be used, of which acetic acid, and magnesium sulphate are typical.  In addition, however, ordinary compounding ingredients, ball clay and gas black, or such organic materials as trinitrophenol dissolved in benzol may also be used as coagulating agents.  Examples of restraining substances are casein, glue, gum acacia, and sodium aluminate.  The amount of such substances influences the degree of fineness of the precipitate.  The concentration of the dispersions should not be greater than 10 per cent total solids.  The dispersions of rubber comprise those consisting of rubber, guttapercha, balata or similar vegetable resins, or artificial dispersions of coagulated rubber, artificial rubber waste or reclaim.  The usual compounding ingredients may be added prior to precipitation.  The precipitates may be filtered on cotton fabric or fine mesh wire gauze; suction and pressure may be used.  When the precipitate is in a damp powdery condition consolidation can be hastened by treating the filter cake with a rubber solvent mixed with a mutual solvent for water and the rubber solvent, e.g. alcohol.  Products ranging from soft rubber to vulcanite may be produced, and in certain cases vulcanization is not necessary.  The compact coagulum obtained on filtration may be moulded before or after drying.  The granular precipitates may be formed into continuous sheet material by known felting operation, or they may be mixed with dispersions of leather fibre, asbestos fibre, wood pulp, abrasives, cork and the like to act as bonding agents, the admixture being compacted by filtration.  A composite sheet may be made from a layer of material composed of 25 parts of rubber and 75 parts of leather dust obtained by precipitating and filtering a diluted dispersion of rubber and leather dust, and a layer of pure rubber, by pouring a layer of a granular precipitate over the filter cake of the rubber-leather composition.  The whole is then consolidated by suction and pressure.  A moulded pattern may be impressed on the sheet.  Several examples are given of methods of preparing the granular precipitates of which the following is typical.  In all cases the concentration of the rubber dispersion is reduced to 4 per cent total solids.  To 100 c.c. of latex of the above concentration 1,6 c.c. of a 5 per cent solution of casein is added and then 4 c.c. of a 10 per cent solution acetic acid with stirring.  The precipitate is then thrown down.  Specifications 219,635, 290,313, [both in Class 70, Indiarubber &c.], 373,262, and 373,263 are referred to.