baber/WOPTO huggingface dataset:
Patent GB-106373-A (GB)
Title: Improved Methods of Projecting Motion Pictures Stereoscopically.
Inventor: HENLEY JOHN
IPC: G03B35/16
Filed: 1916-08-14
Abstract: 1.06,373. Henley, J. Aug. 14, 1916. Kinematograph apparatus. - Kinematograph pictures with stereoscopic effect are presented to view by projecting or exhibiting the elements of each stereoscopic pair in succession and providing means by which one eye of the spectator has a clear view of the appropriate picture and the other eye has a dim view of that picture, the clear and dim views alternating from eye to eye with successive pictures. The film may be viewed directly in a cabinet containing an electric lamp and a pair of viewing lenses, a steel ribbon having openings alternating with and spaced from groups of fine perforations being fed across the lenses simultaneously with the feed of the film so as to provide the desired views and also to act as a shutter. The steel ribbon may be replaced by an opaque celluloid or gelatine ribbon having alternating, spaced, transparent, and semi-transparent portions, or by an oscillating member having similar openings &c. According to Provisional Specification 13562/16, the oscillating member has two openings between which is a group of perforations. Colour screens may be provided for producing multi-colour effects. The pictures when projected are viewed with the aid of an apparatus such as shown in Fig. II which is held by the spectator and comprises a coloured gelatine or celluloid sector A mounted on a rod B which is vibrated in synchronism with the film feed movements by means of electro-magnets C and a pole-piece D, the sector resting before, each eye alternately during the projection periods. The currents passing to the electro-magnets are controlled automatically by the projection apparatus. The sector A may comprise two portions of complementary colours, when the alternate pictures projected are separate colour records, each portion resting before one eye so as to serve as the colour screens. Each series of alternate pictures on the positive film is printed from one of two negative films exposed simultaneously in two cameras, the axes of which are directed to the principal subject of the picture. According to Provisional Specification 11449/16, the background of one series of alternate pictures may be almost or wholly eliminated.
Patent GB-178007-A (GB)
Title: Improvements in means for controlling the supply of liquid fuel to internal combustion engines
IPC: F02M59/00
Filed: 1921-04-20
Abstract: 178,007. Petter, E. W., and Brooks, H. April 20, 1921. Addition to 121,511. Cylinders receiving liquid fuel. - In the fuel pump illustrated in Fig. 1 of the parent Specification one of the levers used to give the supplementary injection of fuel is dispensed with. At the end of the upstroke of the rod p<1>, a supplementary injection of fuel is given when the screw s comes into contact with the projection r on the hand-lever f.
Patent GB-103613-A (GB)
Title: Improvements in or relating to shock absorbers for Motor and other Vehicles.
Inventor: BARDSLEY WILLIAM
IPC: F16F7/06
Filed: 1916-08-17
Abstract: 103,613. Bardsley, W. Aug. 17, 1916. Vibration-dampers.-The recoil movement of the bodies of motor-vehicles upon their springs is checked by a brake band which is tightened about a fixed brake drum during the upward movement of the body. The ends 31 of the brake band 13 are connected to the unequal arms 29, 30 of a lever pivoted at 28 upon an arm or frame 20 pivoted at 19 at the centre of the fixed drum 14 mounted upon the vehicle axle 11. The arm or frame 20 is connected by a rod 23 to the vehicle body. For adjustment of the initial tension of the brake band, the pivot 28 of the lever 29, 30 is arranged upon a rod 25 slidably mounted between the arms of the frame 20 and adjusted by a screw and nut 26, 27. In operation, the lever 29, 30 rocks to a limited extent on the pivot 28 in a direction dependent upon that of the movement of the arm 20, and the differential effort exerterl at the ends of the band bv the unequal arms of the lever effects a tightening of the band when the arm 20 moves downward, and a slackening when it moves upward.
Patent GB-582567-A (GB)
Title: Improvements in and relating to the manufacture of glass filaments
IPC: C03B37/083
Filed: 1944-06-20
Abstract: 582,567. Glass fibres. THURSTON, A. P. (Owens-Corning Fiberglas Corporation). June 20, 1944, No. 11702. [Class 56] In the production of glass fibres by attenuating streams of molten glass. the glass is taken from a supply maintained at a temperature above that of attenuation, the stream is gradually cooled during its initial movement away from the supply and the rate of cooling is increased, preferably rapidly, and the rate of flow is decreased as the stream reaches the attenuating region. By these means danger of devitrefication is avoided and the viscosity is modified so that whilst it is most suitable for attenuating it is also such that the molten glass will not wet the metal adjacent the discharge orifices thereby avoiding the danger of flooding adjacent orifices. This is accomplished by arranging for the nozzles to have a portion of decreasing internal diameter 27, followed by a portion of increasing diameter 31, and the transition may be abrupt as shown at 32. The walls of the nozzles become progressively thinner towards the discharge end. Several forms of nozzles are described. Specifications 428,720 and 533,032, [Group XXXIII], 'and U.S.A. Specification 2,234,986 are referred to,
Patent GB-216124-A (GB)
Title: Improved manufacture of tungsten filaments
IPC: C22C32/00
Filed: 1924-05-12
Abstract: 216,124. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. May 17, 1923, [Convention date]. Filaments.-To prevent sagging of the tungsten filaments, a small quantity of an alkali salt of a chromium-oxygen or manganese-oxygen compound is initially introduced into the tungsten powder in a proportion so depending on the fineness of the tungsten powder that the product when sintered contains between 0.005 and 0.1 per cent of the compound. Suitable salts are bichromates, chromates, manganates or permanganates of the alkali metals, and mixtures thereof. The state of subdivision of the tungsten powder mav be such that 5 grams take 40 seconds to settle down in a column of liquid 10 cms. high and containing 50 c.c of alcohol and ether in equal parts. If 0.2-1 per cent of potassium bichromate is added, the sintered product is found to contain a residue of 0.005-0.03 per cent of the compound. As an example of a process, impure tungstic acid is dissolved in pure ammonium hydroxide, filtered and crystallized, and the ammonium tungstate thus obtained when heated yields pure tungstic acid. To this is added 0.6 per cent of potassium bichromate in solution, the mixture is evaporated to dryness, and reduced in a current of hydrogen at a temperature of about 800‹ C. The tungsten powder is thus reduced to the state of subdivision referred to. The powder is worked into rods. then baked and sintered whereby a considerable part of the potassium bichromate volatilizes. The sintered rod is further worked up, and finally drawn to the required diameter.
Patent GB-1340569-A (GB)
Title: Coi-operated telephone systems
IPC: H04M17/02
Filed: 1971-04-28
Abstract: 1340569 Coin box telephones SIEMENS AG 28 April 1971 [6 May 1970] 11785/71 Heading H4K Metering pulses arriving at a prepayment substation are used to generate coin collection pulses - such that over a cyclical period the amount of fee determined by the metering pulses is equal to the amount determined by the coin collection pulses. In the German telephone system described the metered fee is 18 pfennig and the minimum coin prepayment is 10 pfennig so in a single conversion cycle of 5 meter pulses, 9 coin collection pulses must be generated to provide parity. Thus in this system each meter pulse must cause two collection pulses to be generated four times and the fifth meter pulse should only generate a single collection pulse. In the system shown operation of the substation switch hook closes contacts r and h which energizes relay S and when contact 1s closes relay St operates. Contact 1st changes over to drop relay S and the system is operational. Incoming reactor pulses on terminal Z operate relay I which triggers a coin collection pulse which is applied to a coin checking and collection arrangement not shown, and by closing contact 1i allows selector relay WR to drive to the first stage. Simultaneously contact 2i opens to drop relay St after a delay which is less than the duration of the meter pulse. Cessation of the meter pulse causes I to drop and relays S and St operate again with relay S dropping when contact 1st operates. Contacts 2s and 2st are both operated owing to the delayed drop of relay S so that relay I operates again to provide a second coin collection pulse. Selector WR is driven to position 2 where relay coil St2 is energized which prevents further repetition until the next meter pulse arrives. Coil St2 will be energized at the 2, 4, 6, 8 and 9 positions of the selector and the circuit will thus provide the required number of coin collection pulses. Contacts wr and w operated by the selector ensure that if a call is completed during the cycle the selector homes. Different metering fees can be accommodated by changing the output connections of the selector. In a further modification, Fig. 2 (not shown), plug connections are provided to enable the fee rate to be changed and a relay chain is used to generate the coin collection pulses. The coin checking and collection circuit is also shown.
Patent GB-129141-A (GB)
Title: Improvements in connection with Pistons and Plungers for Pumps and for like Purposes.
Inventor: HEWINS HENRY
IPC: F16J9/08
Filed: 1918-07-18
Abstract: 129,141. Hewins, H. July 18, 1918. Piston packing.- In a double-acting pump for liquids, air &c., the piston packing-ring a is expanded by a hollow rubber or like ring d to the interior of which the fluid operated on is admitted through passages and check valves e, which are provided on both sides of the piston. In the arrangement shown, the piston consists of plates f, f<1> on the peripheries of which brass rings g, g<1> are cast.
Patent GB-637189-A (GB)
Title: Improvements in or relating to hatches and hatch covers
IPC: B63B19/14
Filed: 1947-05-02
Abstract: 637,189. Hatches. GUTHRIE, C. G., and M.E.P. CO., Ltd. May 2, 1947, No. 11808. [Class 113 (i)] In a sheet metal hatch cover at least one end piece is separately formed and slidably fitted spigot -and-socket fashion into the body part of the cover so as to be relatively adjustable thereto, thereby enabling the length of the cover to be accurately matched to the spacing of the supporting hatch members, to which it is to be fitted, prior to securing the end piece to the body part. The end pieces 24, which are inclined downwardly and inwardly to facilitate fitting of the cover 14, have formed in them a slot 20 extending up from the base and then laterally in at least one direction to co-operate as a bayonet-type fastening with a pin 13, Fig. 4, on a hatch member 11. The cover 14 has at least one of its sides 19 inclined downwardly and inwardly so as to overlie an oppositely inclined side of a neighbouring cover 15 and secure the latter over a hatchway.
Patent GB-862465-A (GB)
Title: Servo arrangement for hydraulic systems, especially for motor vehicle brakes
Inventor: SCHNEIDER FRIEDRICH
IPC: B60T13/24
Filed: 1959-04-08
Abstract: 862,465. Fluid-pressure brakes. GRAUBREMSE G.m.b.H. April 8, 1959, No. 11820/59. Class 103 (1). In a servo-arrangement for hydraulic systems, particularly for the operation of vehicle brakes, in which the pressure generated in a control-pipe 23, by the operation of a piston connected with a control lever 22 initiates the servo-effect, and, upon activation of the servo, the control pressure is automatically reduced by enlargement of the capacity of a variable capacity chamber 30 included in the system. A working cylinder 1 with a working piston 7 and an intensifying cylinder 61 with an intensifying piston 20 is directly axially associated and the intensifier piston is fitted with a cylinder containing a displaceable hydraulic control-piston directly operated by hydraulic oil from the variable capacity chambers according to the pressure in the control pipe 23. The intensifier piston is provided with a control cylinder containing an air control piston, operable by the hydraulic control piston, said air control pistons in the control cylinder separating a venting chamber 31, which is in permanent communication with the atmosphere from a valve chamber and containing a connecting channel which is controlled by a valve, the cylinder end-plate which closes the valve chamber being provided with a pressure medium admission valve 13 and an opening for establishing a communication between the valve chamber and a servo chamber, the pressure medium admission valve being combined with the valve for controlling the piston channel in the form of a twin valve 13 in such manner that when the air control piston is displaced by the pressure in the control pipe through the hydraulic control piston, the valve in the control cylinder will first close the piston channel and shut-off the servo-chamber from the atmosphere, and that during the further displacement of the piston, the pressure medium admission valve will open and thus admit the pressure medium into the servo-chamber for operating the servo-piston.
Patent GB-220040-A (GB)
Title: Improvements in apparatus for electrically translating sound waves into light waves,and for producing a photographic record of such waves
IPC: H01J17/00
Filed: 1923-05-02
Abstract: 220,040. Case, T. W. May 2,1923. Optical apparatus.- In apparatus for recording sound photographically, a low-pressure discharge lamp is employed, consisting of a bulb containing two closely associated electrodes, both of which are unheated, and either or both of which are coated with an alkaline earth oxide. The lamp works at a comparatively low voltage, e.g. 150 volts. The coating may be calcium. barium, or strontium oxide, or a combination thereof, and may be formed by depositing the oxide in vaporized form upon the inside of a cylindrical electrode, preferably of aluminium. Other materials such as nickel or tungsten may, however, be used for the electrodes. The bulb, which contains gas such as helium or argon, may be of glass, with an end piece of quartz. Fig. 1 shows diagrammatically the whole sound-recording apparatus, comprising a microphone 1 coupled by a transformer 4 to the grid-filament circuit of a thermionic valve 8. A transformer 12 couples the plate circuit of the valve to the lamp circuit, which includes a battery 17. The light from the lamp 16 is focused by a lens 19 upon a moving film 18. In a modification, the lamp is included directly in the plate circuit of the valve, the transformer 12 being omitted. Fig. 2 shows a lamp in which the anode 15 differs from that shown in Fig. 1, being a looped filament; in each case the anode is disposed within or in close proximity to a cylindrical cathode 14. Two methods of coating the electrodes are shown in Figs. 1<a> and 2<a> respectively. Fig. 1<a> shows a filament 30, which is coated with an alkaline earth oxide, and is inserted within the cylinder 14, inside the evacuated bulb. The filament is heated, e.g. electrically, by using a battery 31, and the oxide is thus vaporized, being deposited upon the inner wall of the electrode 14. The filament 30 is then blown out, the electrode 15 remaining in position for use, and the necessary amount of gas such as helium is afterwards admitted to the bulb. In the lamp shown in Figs. 2 and 2a, the process of formation is similar, but the coated filament 30 is not blown out after oxide has been driven off from it by heating; instead, its ends are joined, and it is used as one of the electrodes of the lamp. After this lamp has been in use for some time, the oxide deposit upon the cylinder may be renewed by re-heating the coated filament for a short time by means of a separate battery.
Patent GB-139075-A (GB)
Title: Improvements in blocks for encasing flanged girders or the like
IPC: E04B1/94
Filed: 1919-05-12
Abstract: 139,075. Ambrose, J. G., and Mathews, C. B. May 12, 1919. Fire-proof coverings. - Encasing - blocks, Figs. 1 and 3, to be applied to flanged girders, columns, &c., are provided with a slot wide enough to receive the flange and with a lateral recess or recesses so that the block may bo moved laterally or turned through an angle to engage the girder &c. The side or sides a of the slot are then filled in with plastic material. The blocks may be made of stone, concrete, cement, wood, or any suitable material.
Patent GB-494178-A (GB)
Title: Improvements in and relating to lightning arresters
IPC: H01T4/20
Filed: 1937-04-26
Abstract: 494,178. Protective arrangements. BRITISH THOMSON-HOUSTON CO., Ltd. April 26, 1937, No. 11901. Convention date, April 24, 1936. [Class 38 (iv)] A lightning arrester includes three groups of elements arranged in series as follows : (a) a current limiting element consisting of similar plates of resistance material 42 separated by conducting spacers 44 extending over a portion only of the plates ; (b) a group of discharge gaps formed by projections 33 on metal plates 32 which also form spacers for annular discs 25-31 each shunting a discharge gap and made of a material such as that disclosed in Specification 292,110, [Class 38 (iv)], having a high inverse voltage resistance characteristic, the values of the resistances increasing progressively from the direction of group (a) ; and (c) a group of discharge gaps having a value materially higher and an inverse voltage resistance materially lower than that of any of the resistances in group (b), and each consisting of an open ring shaped resistance 34 in parallel with a gap 36 formed by metal attachments to the ends of the ring. The various elements are enclosed within an outer casing of insulating material such as porcelain, while groups (b) and (c) are further enclosed by a similar inner casing 21 which is sealed by plates at its upper and lower ends.
Patent GB-971820-A (GB)
Title: Improvements in or relating to organosilicon compositions
IPC: C08G18/61
Filed: 1963-03-26
Abstract: A composition for treating leather (see Division D1) comprises, by weight (1) from 10 to 75% of an organopolysiloxane isocyanate described and claimed in Specification 971,682, and (2) from 25 to 90% of a triorganosilyl end-blocked diorganopolysiloxane having a viscosity of from 50 to 10,000 cs. at 25 DEG C., wherein the radicals are monovalent aliphatic, cyclo-aliphatic, haloaliphatic or cyanoalkyl radicals. The composition, which is preferably dissolved in an inert solvent, cures an exposure to moisture. Examples are given. Specifications 706,719, 736,378 and 773,347 also are referred to.ALSO:Leather, i.e. any tanned or tawed animal hide such as steer, calf, pig or kid, is rendered both water-repellent and scuff resistant by applying thereto, as by dipping, spraying or roller coating, a composition comprising, by weight, (1) from 10 to 75% of an organo-polysiloxane isocyanate described and claimed in Specification 971,682, and (2) from 25 to 90% of a triorganosilyl end-blocked diorganopolysiloxane having a viscosity of from 50 to 10,000 cs. at 25 DEG C., wherein the radicals are monovalent aliphatic, halo-aliphatic or cyanoalkyl radicals (see Division C3), and curing the composition thereon.  The composition is preferably dissolved in an inert solvent.  The coating, which cures on exposure to moisture, preferably at ambient temperature, is applied prior to finishing of the leather.  Examples are given. Specifications 706,719, 736,378 and 773,347 also are referred to.
Patent GB-1453745-A (GB)
Title: Process for manufacturing paper pulp
IPC: D21C5/02
Filed: 1974-03-18
Abstract: 1453745 Preparation of paper pulp MO OCH DOMSJO AB 18 March 1974 [19 March 1973] 12004/74 Heading D2A A process for the preparation of pulp from waste paper comprises (a) comminuting waste paper with water in a pulper 1, the waste paper remaining in the pulper for a period which is shorter than the time necessary for complete impregnation of the paper but which is just sufficient to convert the paper to a pumpable consistency before it is passed through a screen into a cleaner such as a vortex cleaner 8, (b) cleaning the pulp in cleaner 8 to remove coarse contaminants, (c) dewatering the pulp, e.g. in a press 15, so that the pulp becomes completely impregnated, the water removed being recycled in a first water circuit 38 back to a position, e.g. pulper 1, upstream of the press 15, (d) kneading the dewatered pulp in non-cutting kneading apparatus 17, e.g. including two interengaging screws, and discharging the pulp at 70-100C, (e) reducing the concentration of the pulp in a mixer 20, any asphalt or bitumen components agglomerating into lumps for subsequent removal, (f) cleaning the pulp, e.g. in a battery 25 of vortex cleaners to remove fine contaminants before passing to a filter screen 28, and (g) adjusting the pulp concentration in thickener 36 for feeding to a paper-making machine, the water removed in the concentration adjustment being recycled in a second water circuit 39 entirely separate from the first circuit, the water in the second circuit being passed back to a position, e.g. mixer 20, upstream of the thickener. As shown, rejects from screen 28 are passed to a shaker screen seive 29, and rejects from battery 25 are fed into another vortex cleaner 35, accepts from seive 29 and cleaner 35 being used to further dilute the pulp in mixer 20.
Patent GB-1480035-A (GB)
Title: Manufacture of silver-cadmium oxide extrudates
IPC: B22F3/20
Filed: 1975-03-21
Abstract: 1480035 Extruding silver-cadmium oxide ENGELHARD MINERALS & CHEMICALS CORP 21 March 1975 [22 March 1974] 12035/75 Heading B5A [Also in Divisions B3 and H1] A silver-cadmium oxide extrudate is made by forming grains or fragments of silver-cadmium oxide from silver-cadmium alloy and extruding the grains or fragments with or without precompacting them. In one embodiment, a silver-cadmium alloy containing up to 20% cadmium, e.g. 9% cadmium, and optionally up to 10% of other metals or oxides is formed into small particles, which are oxidized at 1200 or 1450-1550 F. to form particles of silvercadmium oxide. Alternatively, the silver-cadmium oxide particles are made by alternately oxidizing and drawing a silver-cadmium wire or strip to form a silver-cadmium oxide wire or strip, which is then formed into particles. The silver-cadmium oxide particles may be hot or cold compacted and sintered to form a billet before being hot or cold extruded to produce a wire or strip. The extruded strip can be clad with silver, gold, copper or nickel, and rolled with intermediate annealing. The extruded wire may also be clad and drawn.
Patent GB-1512166-A (GB)
Title: Original pattern plate obtained using a photo-sensitive resin composition
IPC: C08L67/00
Filed: 1976-03-25
Abstract: 1512166 Photo-sensitive materials SUMITOMO CHEMICAL CO Ltd 25 March 1976 [26 March 1975] 12132/76 Heading G2C [Also in Division C3]  Original pattern plates are obtained by exposing, developing and heat-hardening the photo-sensitive layer of a photo-sensitive plate, said layer comprising (a) an unsaturated polyester having an acid value of 10-40; (b) an unsaturated hydroxy compound; (c) a methylol melamine compound or low condensate thereof, which may be partially or completely etherified; (d) a photo initiator; and (e) a thermal polymerization inhibitor, the proportions of (a), (b) and (c) being limited by specified relationships.