baber/WOPTO huggingface dataset:
Patent GB-1180945-A (GB)
Title: Servovalve Mechanism.
IPC: F15B13/043
Filed: 1967-01-31
Abstract: 1,180,945. Fluid-pressure servomotor systems. ABEX CORP. Jan. 31, 1967 [March 1, 1966], No.4757/67. Heading G3P. A two-stage servovalve has the armature 33, 34 of a torque motor 1 secured to the free end 52 of a coaxial torque tube 54 and the angular movement is transmitted by shaft 65, angled radias arm 67 and tube 77 to a point on a cantilevered jet tube 85 nearer to the free end of the latter. The torque motor has polepieces 11, 12 secured to housing 4 by screws 38 passed through clamp plate 39 and polarizing magnet 8. Lateral spacers 19, 20 locate the components, the gaps being filled with an epoxy resin. Adjustable stops 51 limit armature movement, the solderless conical clamping for rules connect the armature to the torque tube and the latter to housing 4. The jet tube co-operates with receiving orifices (93, 94) to position second stage spool valve 110, movement of the latter being fed back to the jet tube via spring 125.
Patent GB-469684-A (GB)
Title: Improvements in brakes on motor cars and the like vehicles
IPC: B60T1/14
Filed: 1936-02-18
Abstract: 469,684. Brakes. MITCHELSON, H. Feb. 18, 1936, No. 4897. [Class 103 (i)] An emergency brake for a vehicle comprises spring arms S adapted to be projected beyond the periphery of the road wheel to engage the ground when operated by extra pressure on the normal brake which comprises V-section brake shoes C acting between a fixed disc B<1> and the disc B carrying the arms S. The arms S bear against a disc D which is of slightly less diameter than the wheel when the tyre is inflated and bears the weight of the vehicle when the tyre is deflated. The discs B, B<1> are splined together.
Patent GB-1040902-A (GB)
Title: Improvements relating to trailers
Inventor: TOWNSEND DAVID JAMES
IPC: B60T7/20
Filed: 1963-02-07
Abstract: 1,040,902. Trailer brakes. AUTOSET (PRODUCTION) Ltd. Jan. 27, 1964 [Feb.7, 1963], No.4945/63. Heading F2E. A trailer provided with a towing hitch comprises a housing 10 mounted on the trailer via pivot bushes 12 journalled in webs 13 secured to the trailer, a hitch bar 27 guided for axial movement in the housing and controlled by resilient means 29 and a cam 16 operatively associated with the hitch bar for co-operating with a brake operating member 31 when the bar moves relative to the housing. As shown, when the trailer overruns, the hitch bar 27 moves to the left relative to the housing 10, compresses the spring 29 and contacts and moves the end of tube 20 fixed to a collar 18 which in turn moves the cam 16 so as to cause the brake operating member 31 to move upwards. The cam 16 may be moved manually by handles 23 which are fixed each side of the housing 10 on a shaft 22 journalled in collar 18 and have plates 24 fixed thereto. Cam slots 25 in the plates engage opposite ends of a trunnion bar 26 journalled in the cam block so that when the handles are moved to the full-line position shown the cam slots 25 cause the cam to move axially and cause the member 31 to rise. In a modification, the cam 16 may be symmetrical about a midpoint and the cam block is loaded between two equal springs, the cam slots 25 being similarly modified.
Patent GB-306046-A (GB)
IPC: C05B3/00
Filed: 1929-02-14
Abstract: 306,046. Jost, F. Feb. 14, 1928, [Conven. tion date]. Manures.-Alkali chlorides, for instance sodium chloride, are treated with phosphoric acid to obtain alkali phosphates and the latter treated with calcium nitrate to produce alkali nitrates and calcium phosphate, which are separately recovered. lf excess of calcium nitrate is used a mixture of alkali and calcium nitrates for use as a fertilizer may be obtained. The c calcium phosphate may be treated with sulphuric acid to obtain the phosphoric acid used in the process and the calcium sulphate also formed be converted first to calcium carbonate with ammonia and carbon dioxide and then to nitrate, for use in the process, with nitric acid with recovery of carbon dioxide ; alternatively the calcium phosphate may be treated with nitric acid, and the mixed solution of phosphoric acid and calcium nitrate obtained be used to obtain alkali nitrate from the chloride in a single treatment. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following subject-matter :-a fertilizer consisting of a mixture of alkali and calcium nitrates with alkali phosphate. This subject-matter does not appear in the Specification as accepted.
Patent GB-1301951-A (GB)
IPC: F15B15/16
Filed: 1970-02-03
Abstract: 1301951 Hydraulic telescopic actuators O NEUMEISTER 3 Feb 1970 [15 Feb 1969] 5078/70 Heading F1D Hydraulically actuated telescopic tubes 14 to 17 Fig.1 extending from a fixed cylinder 11 are prevented from twisting by engagement of circumferentially spaced members e.g. balls 29 projecting radially from the inner end of the outer cylindrical surface of each tube with a longitudinally extending groove 21, Fig.2, cut in the radially inner cylindrical surface of the adjacent tube. The grooves 21 extend only part way along said inner surfaces and the outer ends thereof form stops thus limiting the outward extension of each tube. Grooves 21 may be helical thus allowing limited relative rotation of the tubes.
Patent GB-149644-A (GB)
Title: Improvements in or relating to ball bearings
IPC: F16C19/16
Filed: 1920-02-19
Abstract: 149,644. Withers, J. S., (Aktiebolaget Kullagerverken). Feb. 19, 1920. Ball bearings.-Radially-divided race-rings 2 for ball bearings are joined by two or more tubesegments 4 with angular edges 5 enclosing the ring parts. in which the flanges 5 converge slightly inwardly and can spring outwardly to suit the mutual movement of the race-ring parts. The flanges 5 may extend along the whole length of the segments, or may be slotted to form tongues.
Patent GB-160760-A (GB)
Title: Process for the reduction of ores
IPC: C22B5/00
Filed: 1921-02-14
Abstract: 160,760. Stevens, C. A., (Assignee of Collins, C. G.). March 26, 1920, [Convention date]. Drawings to Specification. Dry processes of extracting aluminium and other metals. - The ore is mixed with sodium chloride and a carbonaceous substance, with or without the addition of oxalates formed preferably by the inclusion of sawdust and alkali in the mixture. The mixture is heated out of contact with air.
Patent GB-1215354-A (GB)
Title: PRODUCTION OF HIGH PURITY RADIOACTIVE INDIUM-113m
Inventor: KRAMER HENRY HERMAN
IPC: G21G1/06
Filed: 1968-02-01
Abstract: 1,215,354. Separation of radio-isotopes. UNION CARBIDE CORP. 1 Feb., 1968, No. 5157/68. Heading G6R. Radioactive indium 113m is produced by forming a solution of neutron-irradiated tincontaining material, diluting the solution with water, depositing the tin on silica gel, and eluting indium 113m as required with dilute acid. The material irradiated may be metallic tin, tin oxide, nitrate, or sulphate, or tetraphenyl tin. Irradiated tin metal enriched in Sn 112 is dissolved in concentrated HCl in the presence of H 2 O 2 , bromine water, or permanganate as an oxidizing agent and the solution diluted with water; silica gel is added and the mixture allowed to stand at room or elevated temperature; the gel is then drained in a column and washed. Indium 113m is eluted from the column with dilute HCl and may be used in medical research and diagnosis.
Patent GB-442761-A (GB)
Title: Device for firing automatic-guns
IPC: F41A19/18
Filed: 1935-02-18
Abstract: 442,761. Automatic guns. PRECISION MODERNE, 162, Rue St. Charles, Paris. Feb. 18, 1935, No. 5165. Convention date, Feb. 21, 1934. [Classes 92 (i) and 92 (ii)] Relates to automatic guns having two or more barrels 1, 2, Fig. 1, adapted to be fired successively, the firing of the first barrel 1 being effected manually, as by a pedal 7, and the firing of the second or subsequent barrel 2 being controlled by the discharge of the preceding barrel. According to the invention, the movable member, such as the barrel or gas piston, of one gun actuates through cam-androller mechanism 13, 14, transverse shaft 15, and link mechanism 17, 18, 19, the firing member 20 of the subsequent gun. In a modification shown in Fig. 4, the cam 14 is carried on the gas piston rod 32 and the roller 13 is mounted at the end of a crank 22 on the transverse shaft 15. The invention may be applied to differential-recoil guns, the pedal 7 acting to release the first gun from its recoiled position, and the cam-and-roller device acting, during the run-out of this barrel, to release the second barrel from its recoiled position.
Patent GB-536165-A (GB)
Title: Improvements in or relating to electric heating units
IPC: F24C15/10
Filed: 1940-03-20
Abstract: 536,165. Electric cooking ranges. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. March 20, 1940, No. 5232. Convention date, March 29, 1939. [Class 39 (iii)] An open grid type surface heating element 26 for use in a cooking range is supported by cross bars 29 in a drip pan 14 which is formed in two hinged semi-circular sections to allow it to be readily removed for cleaning. The terminal leads of the element pass through holes formed by semi-circular notches in the meeting edges of the pan, and through holes in a shield plate 36 above the terminal block 32. To remove the pan, the element together with the pan and the terminal block is raised from the supporting flange 16 on the range to allow the outwardly bent arms 50 of plates secured to the block to pass through apertures 21 in the flange 16, the structure being then turned to allow the arms to rest upon the flange. Further arms 52 on plates secured to the block retain the structures in position and prevent it from tilting. In modifications the shield plate forms the middle part of the bottom of the pan and the structure is supported in its raised position by the outwardly bent arms of plates secured to one side of the shield and by a spring clip on the other side.
Patent GB-217162-A (GB)
Title: Improvements in or relating to the heels of boots and shoes
IPC: A43B21/37
Filed: 1924-03-01
Abstract: 217,162. Phillips, V. March 1, 1924. Rivet extractors.-A pin f used in securing in position a detachable top-piece for a bootheel is extracted by means of a tool j which has a threaded end to engage a threaded bore h in tha pin.
Patent GB-752581-A (GB)
Title: Improvements in or relating to a magnetizable mixture used in a magnetic coupling
IPC: F16D37/02
Filed: 1954-02-24
Abstract: 752,581. Electromagnetic couplings; magnetic powders. EATON MANUFACTURING CO. Feb. 24, 1954 [March 5, 1953], No. 5435/54. Classes 35 and 38 (2). In an electromagnetic clutch, brake or similar device the air gap between the two relatively rotating members of the device is filled with a finely-divided mixture comprising ferromagnetic alloy, non-ferrous material or its oxide, and a lubricant also in a finely-divided form. The non-ferrous material or its oxide comprises at least one of the following materials: bronze, copper, zinc oxide, lead oxide, nickel oxide and titanium oxide. The Specification gives several examples of various compositions. The lubricant is preferably powdered molybdenum disulphide and/or graphite, though other lubricants may be used. Fig. 1 shows a clutch having an inner member 14 surrounded by an outer cup-shaped member 13 from which it is separated by an air gap 11 filled by the above mixture. If desired, the periphery of the member 14 may be provided with ridges as in Fig. 2 (not shown). Specifications 649,553, 671,219, [Group XXXIV], and 677,534 are referred to.
Patent GB-572666-A (GB)
Title: Improvements relating to the decorticating of flax and other bast fibres
IPC: D01B1/22
Filed: 1941-05-02
Abstract: 572,666. - Decorticating flax &c. THOMSON, J. May 2, 1941, No. 5728. [Class 120 (i)] Flax and other bast fibres are decorticated by feeding a continuous supply of the stalks length-by-length through a decorticating zone, gripping the leading end of a stalk and pulling the length into position for decortication, gripping the other end and then effecting a reciprocatory motion so as to bend the length of straw in alternately opposite directions, temporarily releasing the leading end of the now decorticated length, withdrawing this length by the released end and then temporarily releasing the other end for the advance of the next length of straw. The decorticating elements comprise two pairs of complementary gripping blocks 14, 15 ; 16, 17, Fig. 1, having associated feed and withdrawal bands 18, 19, 20 and rollers 21, 22. The gripping blocks are provided with facings 14A, 15A, 16A, 17A. The lower block 15 is fixed in position and the upper block 14 is spring-pressed into contact therewith. The blocks 16, 17 reciprocate to effect the decortication and the block 16 may also be moved relatively to the block 17. The block 14 is raised from the block 15 by the action of a bell-crank lever 23 fulcrumed on the block 14, Fig. 2, and engaging a projection 34 on the block 15. The lever 23 is operated through members 24 ... 28 from a cam 29 on a slow-speed shaft 30 driven by gears 31, 32 from the main driving shaft 33. The lower block 17 is reciprocated between guides 38 by an eccentric 39, Fig. 3, acting through a connection 40 while the opening and closing of the blocks 16, 17 is secured by similar cam action 24 ... 29. In operation the block 14 is raised, Fig. 5, and straw S is fed into the gap G by the feed band 18. The blocks 14, 15 then close, Fig. 6, and reciprocation of the blocks 16, 17 (e.g. for seven down and eight up strokes), effects decortication of the length in the gap G. During the first half of the last down stroke the grippers 16, 17 are opened and the decorticated length withdrawn by the members 19 ... 22. The feed band 18 and the delivery bands. 19, 20 respectively pass round rollers 46, 47, 49, Fig. 11, and rollers 54, 56, 57. Specification 10059/99, [Class 120], is referred to.
Patent GB-891308-A (GB)
Title: Steam boiler
IPC: F22B21/20
Filed: 1960-02-18
Abstract: 891,308. Sectional water-tube steam boilers. GUSZMANN, M. Feb. 18, 1960 [Feb. 19, 1959; July 10, 1959], No. 5775/60. Class 123(2) A steam boiler composed of a number of small individual elements which can be easily replaced comprises three detachable water tube units 1, 2, 3 and an adjacent water-tube wall 41 of a firebox 4 the vertical tubes 11, 21, 31, 41 extending between upper and lower transverse headers such as 28, 27, Fig. 2, having dismountable flanged unions respectively with a steam and water drum 60 and a common inlet header 50. The latter is connected to the drum 60 by a downpipe 70 having a fresh water inlet 71. The firebox 4, in addition to the wall 41, comprises a rear wall 47, 48, a side wall 49, a roof, and an upper front wall part extending downwardly from a roof header to an intermediate horizontal header, the furnace being divided into two small individually-detachable elements by providing flanged unions between the headers for the wall parts 47, 48. The combustion gases follow a tortuous path formed by wall fillings 229 between the adjacent tubes of the wall units 1, 2, 3 and the wall 41 the fillings terminating alternately short of the upper and lower headers 28, 27 to provide gas passes 14, 24, 34, and 42 between the spaced water tubes the pass 14 leading to an outlet flue 43. The gaps in the side walls of the gas pass between the water tube units 1, 2, 3 and the wall 41 are closed by removable T-irons 25 and brick material 16 the corresponding roof spaces being closed by bars 5, 6 which are welded along the upper headers and have cover bars 9 placed over them. The boiler, supported on a foundation 8 having a fire-pit 4a and a sheet iron covering 8, has a shell 90 with a removable section facing the units 1, 2, 3 and a firebox door over the lower open part of the front wall of the firebox 4. In a modification four water tube units are provided the water tube walls of the firebox being formed as a single unit and the headers being of rectangular crosssection. In a further modification horizontal partitioning elements are arranged across the water tube units and the adjacent wall of the firebox so that a tortuous gas passage winds to- and-fro in a downward direction and terminates in a lower flue outlet. The water tube units and the firebox walls are all formed of two offset rows of water tubes.
Patent GB-248178-A (GB)
Title: Improvements in and relating to insulated conductors or cables
IPC: H01B7/02
Filed: 1925-03-03
Abstract: 248,178. Fitzpatrick, H. D., (Naamlooze Vennootschap Hollandsche Draad-en Kabelfabriek). March 3, 1925. Insulating coverings for cables and conductors; cables, arrangement and disposition of parts of. - In rubber insulated conductors of the type comprising a core 1 of conducting material surrounded by a vulcanized rubber insulation 2, a tape covering 3 and an outer covering, the usual outer covering of soaked cotton or other fibrous braiding is replaced by an outer covering consisting of a seamless tube 4 of vulcanized rubber or rubber mixture.
Patent GB-540131-A (GB)
Title: Improvements in and relating to toothed wheel gearing
IPC: F16H55/08
Filed: 1940-04-01
Abstract: 540,131. Toothed wheels and pinions. AKT -GES BROWN; BOVERI, & CIE. April 1, 1940; No. 5849. Convention date, April 1, 1939 [Class 80 (i)] In toothed wheel gearing in which at least the flanks of the teeth of one of the co-acting wheels consists of material the resistivity of which differs from that of the material of the flanks of the other wheel, the profiles of the teeth are displaced towards that wheel of which the flanks are made of the harder material, the teeth with the harder material having the longer dedenda and those with the softer material the longer addenda, so that the harder material works mainly as dedendum and the softer material as addendum. The invention is based on the fact that of the two ooacting wheels, that part which works as the dedendum is much more subjected to wear and pitting than that part which works as the addendum.
Patent GB-1080174-A (GB)
Title: Hypotensive compounds and method for treating hypertension employing same
Inventor: BERGER ARTHUR
IPC: C07C335/16
Filed: 1965-02-11
Abstract: The invention comprises 1,1-dimethyl-3-(21,41 - dimethylphenyl) - 2 - thiourea and 1,1 - dimethyl - 3 - (21,31 - dimethylphenyl) - 2-thiourea. The former compound is prepared by reacting 2,4-dimethylphenyl isothiocyanate with dimethylamine, and the latter thiourea is prepared by reacting dimethylamine, carbon disulphide and 2,3-dimethylaniline.
Patent GB-1199260-A (GB)
Title: Ignition Distributors
Inventor: FRY WILLIAM LAWRENCE
IPC: F02P7/063
Filed: 1966-10-28
Abstract: 1,199,260. Ignition distributors. JOSEPH LUCAS (INDUSTRIES) Ltd. 19 Oct., 1967 [28 Oct., 1966], No. 6002/70. Divided out of 1,199,259. Heading H1N. The description is identical to the parent, but the claims relate to the convex bearing surface (32) of the heel (19).
Patent GB-431211-A (GB)
Title: Improvements in or relating to the control of high-pressure fire hose
IPC: A62C31/00
Filed: 1934-02-24
Abstract: 431,211. Controlling hose - pipes. McPHERSON, D., 1981, Linwood Street, San Diego, California, U.S.A. Feb. 24, 1934, No. 6089. [Class 47 (ii)] An apparatus for controlling the discharge end of a high-pressure fire hose comprises a stand 30 with pins 13 for engaging the ground, a main frame 10 pivoted to the stand, and a sub-frame 19 pivoted to the main frame and controlled by a spring. The stand, which may have rests for the firemen's feet, comprises two wings 31 united by an arched web 34, and can be turned at right angles to the main frame for use or into parallelism with it for storage, and locked in either position by a nut 35. The main frame 10 comprises a handle portion 11, a hook 12 with a pin 13, a stirrup 15 with a closing plate 16, and end plates 18. The sub-frame 19, which carries a stirrup 26, is pivoted at 20 between the plates 18, is urged to its most erect position by a spring, not shown, and can be adjusted by a slot and lock-nut 29. In use, the stand is turned to the position of use, and placed to straddle the hose, the horizontal portion of which is placed in the hook 12. The hose is then bent up at an angle of from 46-60‹ and engaged in the arch 34 and stirrup 15. It is then again bent, and engaged in the stirrup 26, so that about a foot of the hose projects, the sub-frame being adjusted as required and locked by the nut 29. Preferably, a support is provided on the fire tender or the like for mounting the apparatus when not in use.
Patent GB-1173791-A (GB)
Title: Improvements in or relating to Mobile Cranes
IPC: E02F9/08
Filed: 1967-02-08
Abstract: 1,173,791. Mobile cranes. RICHIER SOC. ANON. 8 Feb., 1967 [8 Feb., 1966], No. 6096/67. Heading B7J. A mobile crane comprises a wheeled turntable chassis 2 provided with stabilizing legs 5a, 5b pivoted on axes 9 so as to be retractable to the dotted line position in Figs. 1 and 3 in which the upper surfaces of the legs lie in a plane and form a base on which loads may be supported. The legs 5b are in two parts 6, 7, pivoted at 8 and controlled by a linkage 15, 16, 17, and are operated by hydraulic jacks 13, 14; alternatively, all the legs are telescopic and operated by individual jacks. Jacks 18 are provided on shoes 19. In other embodiments, free play is provided between the shoe and the axis 9, by forming the leg in two parts hinged together about a horizontal axis and providing stops, or a pin-and-slot connection, or by forming the leg in one piece and mounting the shoe on a flanged spindle capable of free vertical movement through the end of the leg.
Patent GB-1425564-A (GB)
Title: Opacimeters
IPC: G01N21/53
Filed: 1972-02-09
Abstract: 1425564 Measuring opacity photo-electrically NATIONAL RESEARCH DEVELOPMENT CORP 8 Feb 1973 [9 Feb 1972] 6105/72 Heading G1A In an opacimeter for measuring the opacity of smoke, e.g. in the exhaust of an engine, the smoke is passed between a source 1 of modulated light and a photo-electric cell, the output of the cell being amplified, rectified and smoothed and a meter or recorder being provided to measure the output either continuously or to give a peak measurement obtained via a hold device 20. As shown, the light source is a tungsten halogen lamp whose beam is chopped by a chopper driven by a motor 2. Alternatively an electro-optical chopper in the form of a nematic liquid crystal window is provided to modulate the light. The cell is in the form of a selenium photo voltaic cell and is connected to a pre-amplifier 9 via a capacitor 8 which removes the D.C. from the output due to  ambient light. A 100 Hz rejection filter 10, a  variable gain amplifier 11, a rectifier 13 and a smoother 14 are provided, the output from the smoother being applied to one input of a variable gain differential amplifier 19 having its other input connected to a reference potential. The amplifier output is either applied directly to a meter 22 or to the hold device 20 via a switch 21. Potentiometer 12, in conjunction with a switch 7, enables zero smoke to be set at zero of the meter 22. The gain of amplifier 19 is varied manually by a potentiometer 17 to enable the maximum smoke value for any chosen opacity range to be set at fullscale of meter 22. The various full scale gain settings may be checked and/or calibrated either by interposing neutral density optical filters in the light path or by adjustment of a potentiometer 6, in conjunction with switch 7, to produce attenuation of the signal from cell 5. The gain of amplifier 19 may in addition be automatically controlled by an exhaust temperature sensor. Means for causing the smoke to pass between source 1 and cell 5 are described with reference to Figs. 2-4 (not shown).