baber/WOPTO huggingface dataset:
Patent GB-416841-A (GB)
Title: Improvements in gun mountings for aircraft
IPC: B64D7/02
Filed: 1933-03-24
Abstract: 416,841. Gun mountings; brakes. VICKERS (AVIATION), Ltd., and WALLIS, B. N., Byfleet Road, Weybridge, Surrey. March 24, 1933, No. 28849/32. [Class 92 (i).] An aircraft gun mounting, having upper and lower parallel tracks a, b of similar shape around which run rollers c, d on standards e for an arm g carrying the gun, has the rollers slidable in the standards and controlled by brakes applied by means which force the brakes against the rollers and the rollers against the tracks. The mechanism for withdrawing the brakes therefore acts to relieve the pressure on the rollers to facilitate easy training of the mounting. The upper and lower spring- pressed brake blocks f are simultaneously operated by a two-part link f<7>, f<17> one end of which is connected to a Bowden wire f<14> the spaced points of the other end being connected to the brake blocks by rods f<5>, f". The arrangement is such that the lever operates one brake block by rocking about the point of attachment to the other brake block. Each member c<3> carrying a ,brake block is free to slide and turn in a carrier member c<6>, adjustable by a screw in the end of a standard to permit of retraction of the rollers when fitting them between the tracks. An adjustable seat i is connected by parallel-motion links to the standards as described in Specification 406,753.
Patent GB-762821-A (GB)
Title: Copolymers of phenylpolysiloxane and oil-modified alkyd resins
Filed: 1954-10-07
Abstract: A copolymer, suitable for making varnishes and enamels, is made by heating at 140 DEG  C. or above a solution of a condensed polysiloxane of the empirical formula C5H6.SiO3/2 and which is free from hydroxy or alkoxy radicals, and an oil-modified alkyd resin or the resin-forming ingredients thereof.  The alkyd-forming ingredients specified are: polyhydric alcohols-propylene, diethylene, trimethylene and tetraethylene glycols, glycerol, erythritol, adonitol, mannitol, sorbitol and pentaerythritol; polycarboxylic acids-succinic, glutaric, adipic, sebacic, maleic, fumaric, phthalic, isophthalic, terephthalic and mellitic acids and maleic and phthalic anhydrides; modifiers-coconut, cottonseed, castor (natural and dehydrated), linseed, soyabean, fish and tung oils, and palmitic, stearic, oleic, linoleic and linolenic acids and glycerides.  The siloxane used in the examples was made by slowly adding phenyltrichlorosilane to a mixture of ethanol, toluene and water and maintaining the reaction mixture under refluxing conditions until evolution of HCl ceased; toluene and di-isopropyl ether were added and the mixture was agitated and then allowed to settle, the ether-polymer layer being separated, neutralized with NaHCO3, filtered and water being removed as an azeotrope and solvent as a distillate.  The polymer residue was dissolved in toluene and heated with solutions of oilmodified alkyds to yield copolymers which were dissolved in xylene and pigmented with titania.  The copolymers generally comprise from 10 to 75 per cent (by weight) of the condensed polysiloxane component and from 90 to 25 per cent oil-modified alkyd resin component.
Patent GB-1524308-A (GB)
Title: Nickel base alloy
IPC: C22C19/05
Filed: 1976-07-12
Abstract: 1524308 Nickel alloys SPECIAL METALS CORP 12 July 1976 [18 July 1975 9 June 1976] 28882/76 Heading C7A A gamma-prime strengthened alloy contains in wt. per cent Cr 12-20 Te 4À75-7 Al 1À3 -3 Co 13-19 Mo 2-3À5 W 0À5 -2À5 B 0À005-0À03 C 0À005-0À045 Mn -0À75 Zr -0À08 Fe -0À5 rare earth elements -0À2 Ca, Mg, Sr, Ba -0À02 Ni balance the composition being such that (Ti + Al) is 6À5 to 9, and the ratio Ti:Al ranges from 1À75:1 to 3À5:1. The alloys show a 1650‹F impact strength of <6 ft-lb. after 35000 hours at 1600‹F, and form substantially fewer M23C6 carbides than alloys of similar composition but higher carbon content. They are characterized by substantial absence of acicular sigma and mu phases.
Patent GB-397323-A (GB)
Title: A process for decaffeinising coffee and detheinishing tea extracts
IPC: A23F3/38
Filed: 1932-10-15
Abstract: Coffee is decaffeinized and tea detheinized by feeding extracts of coffee or tea, concentrated if necessary, through a layer of caffein or theine solvent of high specific gravity. Alternatively, solvents of low specific gravity may be fed through the extract.  The extracts are distributed over a system comprising a number of filter elements any one of which can be put out of action on saturation.  Thus, a coffee extract of specific gravity 1,035 to 1,038 is passed through a filter tube containing chloroform of specific gravity 1,485.
Patent GB-1113044-A (GB)
Title: Portable rotary rig for boring soft or hard earth formations
Inventor: MINKIN BORIS SEMENOVICH
IPC: E21B19/084
Filed: 1965-07-08
Abstract: 1,113,044. Boring earth &c. TSENTRALNOE KONSTRUK TORSKOE BJURO GOSUDARSTVENNOGO GEOLOGICHSKOGO KOMITETA. 8 July, 1965, No. 28951/65. Heading E1F A portable rotary drilling rig has a drilling assembly 6 mounted on guides 4 and supported by a cable 12 connected to a winch 10. The assembly is pulled down for feeding the drill by a cable 13 passing around a pulley system 18, 19 and connected to the winch, the pulley 18 being carried by a rod 21 engaged by a spring 25. The winch is operated to apply a predetermined load to the rod compressing the spring to store energy for the feed force which may be measured on a scale 26. A tensioner 34, 35 takes up slack in the cable 12. The winch has a ratchet gear which permits pulling, running and freeing of drills. The assembly is driven by a hydraulic or I.C. engine 7 and means are provided for the supply of flushing fluid. The slope of the guides may be adjusted by moving a connector 9 to alter the length of the rear stay 5.
Patent GB-1058183-A (GB)
Title: Improvements in or relating to safety harness
Inventor: SPOUGE ERIC HERBERT
IPC: B60R22/34
Filed: 1962-07-27
Abstract: 1,058,183. Safety harnesses. TELEFLEX PRODUCTS Ltd. July 26, 1963 [July 27, 1962], No. 28986/62. Heading A3V. [Also in Division F2] A motor car safety harness assembly comprises retracting means for a strap which includes an upright hydraulic piston and cylinder and a restricted fluid passage allowing fluid to flow from above the piston when the strap is pulled, and a return spring for effecting downward movement of the piston and retracting of the strap. The hydraulic cylinder 4, piston 30 and piston rod 8 are secured to the back of a vehicle seat or to a door pillar and one end of a shoulder strap 12 is secured to an eye 10 on the end of the piston rod. Three passages 32 in the piston have outlets raised above the surface of the piston and are sealable by a plate valve 34 above a spring 36 in a recess in the piston. The piston is urged downwardly by a spring 42 surrounding the rod, when tension is applied to the strap fluid flows through the passages from above the piston and the piston rises in the cylinder. When a sudden pull is given to the strap the plate valve closes the passages 32, and the movement of the strap is arrested. The strap is retracted, when the tension in the strap is released, by the spring 42 restoring the piston to its original position. The passages may be external to the cylinder.
Patent GB-533341-A (GB)
Title: Improvements in fluid blast electric circuit breakers
IPC: H01H33/16
Filed: 1939-10-31
Abstract: 533,341. Fluid-blast switches. BRITISH THOMSON-HOUSTON CO., Ltd., TRENCHAM, H., and COX, H. E. Oct. 31, 1939, No. 29031. [Class 38 (v)] The shunting resistance 4 is connected between the fixed nozzle-contact 2 and an auxiliary ring contact 3 disposed so as to separate the part of the switch containing the contact 2 from the part to which the fluid is first admitted. The application of the full blast is delayed until the openings 8 in the tubular movable contact 6 are uncovered, and when the contact 6 leaves contact 3 and openings 9 are uncovered, the blast through the former, becomes effective. In the " Complete " drawing (not shown), the movable contact tube or rod is permanently in engagement with a resistanceconnected contact in partition 7, and passes through ring 3 to engage a fixed contact rod.
Patent GB-1247266-A (GB)
Title: Process and apparatus for the continuous treatment of fibrous material
IPC: D06B21/00
Filed: 1969-06-09
Abstract: 1,247,266. Treating textiles. VEPA A.G. 9 June, 1969 [10 June, 1968; 27 Sept., 1968]. No. 29085/69. Addition to 1,195,916. Heading D1L. The process of the Parent Specification wherein a loose continuous fleece is formed from a fibrous material and is subsequently impregnated with a dye liquid, squeezed, treated in a chamber to fix the dye (e.g. by steaming) and is thereafter washed and dried, is modified in that a gas in the range 170-230‹C is used for. the fixing and drying. This modification is useful in dyeing polyesters. The apparatus used is substantially the same as in the Parent, but the conveyor belt is replaced by a series of sieve drums enclosed in a chamber.
Patent GB-1479636-A (GB)
Title: Chain with links of variable length
IPC: B65G23/00
Filed: 1974-07-01
Abstract: 1479636 Variable-speed passenger conveyers CENTRE STEPHANOIS DE RECHERCHES MECANIQUES HYDROMECANIQUE & FROTTEMENT 1 July 1974 [2 July 1973] 29093/74 Heading B8A A passenger conveyer has a series of relatively movable load-carrying slats Ei which are supported between spaced linkages Bi, Li joined by cross members T. The arrangement is such that when the relative angularity of the links of the linkages remain constant the positions of the slats Ei remain constant relative to each other. When the angularity of the links decreases, the slats move into overlapping relation, and the actual conveying speed is reduced. When the angularity of the links increases, the conveying speed increases. The variation in angularity of the links may be effected by the action of a roller chain (Fig. 8, not shown), or by a rack (Fig. 7, not shown). In modifications (Fig. 9, 12 and 13, not shown), alternate links are of flexible material and are coiled upon members which constitute the adjacent links. The slats Ei may be circular (Fig. 5, not shown), and may move in an endless path, the plane of which is horizontal . The control of the rotation of the links may be effected by means of respective cam followers. The latter run in a cam track (15) (Figs. 10 and 11, not shown) which is suitably inclined to the direction of conveyance, to produce the required conveyance speedchange programme. When the alternate links are of flexible material, they may be received around a respective jockey pulley (Figs. 14 and 15, not shown). This may be mounted on the conveyer slat assembly (Fig. 14, not shown), or may be carried on a radius rod (Fig. 15, not shown). The flexible member may be received around a separate rotary member at each end of its length (Figs. 16 and 17, not shown). The rotary members may be separate from the slat assemblies (Fig. 18, not shown).
Patent GB-620652-A (GB)
Title: Improvements in or relating to injection-moulding or extrusion apparatus
IPC: B29C45/47
Filed: 1944-12-01
Abstract: 620,652. Injection-moulding and extrusion machines. STEVENS, A. H. (Chrysler Corporation). Dec. 1, 1944, No. 29095/47. Divided out of 605,867. [Class 87 (ii)] [Also in Group XXX] The obturating-discs 30, 31, which mesh with and are driven by the impelling screw 21 and prevent material turning with the screw, are disposed in chambers 22, 23 communicating with the cylinder bore 16 by slots 24, 25 in the cylinder wall. The distance between the upper edge A of the slots and the inlet end B of the cylinder bore is such as to accommodate at least one complete turn of the screw, whereby when material which has been carried between the teeth of the discs 30, 31 into the chambers 22, 23 is returned to the cylinder bore (just below the edges A), the material will not escape from the bore. Grooves 100 in the bore prevent material turning in the thread at the entrance to the bore. The chambers are formed in part by the slots 24, 25 ,and in part by caps 28, 29. The screw has an extension 52 which acts as a spreader, and the lower end of the extension carries blades 53 which contact the walls of the cylinder bore and centralize the screw. Heating elements 50, 51 surround the lower part of the cylinder. Disposed in the nozzle 14 is a rotatable valve 45 having a discharge orifice extending therethrough. The screw is turned by an electric motor 54 through pinion gearing and carries a gear 92 which drives a feed drum 82 disposed at the bottom of a hopper 79. A vertically-adjustable gate 94 controls the feed from the hopper into the cylinder. In a modification, (Fig. 4 not shown), suitable for the injectionmoulding of rubber, the screw-thread extends to the bottom of the cylinder and the lower end of the screw shaft is formed as a cone which periodically seats on the nozzle to prevent egress of the rubber, this seating being effected by reverse rotation of the screw and by a spring against which the screw floats.
Patent GB-259528-A (GB)
Title: An improvement in the manufacture of artificial silk
IPC: D06P5/13
Filed: 1925-11-18
Abstract: 259,528. British Enka Artificial Silk Co., Ltd., (Assignees of Naamlooze Vennootschap Nederlandsche Kunstzijdefabriek). Oct. 12, 1925, [Convention date]. Disbinguishing artificial silks of different characteristics.-Threads of different denier numbers are distinguished by dyeing them wholly or in part during or after the spinning operation with a dye of characteristic colour, the dye being decolorized or removed during the bleaching process, or some other after-treatment. Dyeing of the threads is conveniently combined with the final washing operation, a dye such as methylene blue being added to the wash water. In the case of centrifuge spinning, the dye may be applied in an atomized condition in the centrifuge &c. The process is particularly applicable to the manufacture of viscose silk; but it may also be applied to cuprammonium and nitrocellulose silks. Specification 251,580 is referred to.
Patent GB-1474076-A (GB)
Title: Catalytic converter for automotive internal combustion engine
IPC: F01N13/02
Filed: 1974-07-02
Abstract: 1474076 Catalytic converter for I.C. exhaust NISSAN MOTOR CO Ltd 2 July 1974 [11 July 1973] 29240/74 Heading B1F An I.C. exhaust catalytic converter comprises a metal casing, a smaller catalytic element having a unitary, solid skeletal structure having a plurality of gas channel coated with catalyst, resilient means surrounding the catalytic element and compressively disposed between the element and the casing, and being bonded to the inner surface of the casing e.g. by welds, and the outer surface of the element e.g. by a ceramic cement.
Patent GB-1513182-A (GB)
Title: Switching circuits
IPC: H03K17/795
Filed: 1975-07-11
Abstract: 1513182 Switching circuits INTERNATIONAL RECTIFIER CORP 11 July 1975 29250/75 Heading H3T A switching circuit comprises light emitters 20, 21 optically coupled to respective light-sensitive semiconductor devices, one, 23, being a phototransistor, coupled to a power transistor 30 in Darling- ton configuration, and the other 40 being either in parallel (as shown in Fig. 2) or in series, Fig. 1 (not shown), with 23. When a pulse is applied to terminals 10, 1 LED 20 turns on photothyristor 40, supplying base drive to power transistor 30, so that power may be supplied from a source connected to terminal 14 to a load connected to terminal 16. Thyristor 40, and hence 30, remain on after the end of the switch-on pulse. When a pulse is applied to terminals 12, 13, LED 21 turns on phototransistor 23, which shorts the drive to thyristor 40. If the pulse applied to 12, 13 is long enough thyristor 40 turns off. After the end of this pulse 23 turns off, turning off 30. The circuit may be integrated.
Patent GB-437221-A (GB)
Title: Improvements in or relating to electric motors
IPC: H02K1/18
Filed: 1934-10-12
Abstract: 437,221. Dynamo - electric machines. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.-(Leland Electric Co. ; 1501, Webster Street, Dayton, Ohio, U.S.A.) Oct. 12, 1934, No. 29260. [Class 35] Cores.-The stator laminµ of a dynamoelectric machine are locked in place by circumferentially - extending members, the ends of which engage with notches in the laminµ. The laminµ 32 are formed with projections 33 having bolt-holes 41 and slots 35 into which fit the edges of plates 36. The plates 36 are secured by sidepieces 38, lugs on the plates passing through slots in the side pieces and being upset or riveted over as shown at 40<a>. The edges of the plates 36 and side pieces 38 are rabbeted to fit the end frames of the machine. The plates 36 are so shaped as to leave an air-space between them and the laminµ between the projections 33.
Patent GB-617453-A (GB)
Title: Improved power producing unit
IPC: F01D1/06
Filed: 1946-10-01
Abstract: 617,453. Gas turbine plant. SVENSKA TURBINFABRIKS AKTIEBOLAGET LJUNGSTROM. Oct. 1, 1946, No. 29267. Convention date, Dec. 20, 1945. [Class 110 (iii)] A gas turbine plant comprises an outward radial flow contra-rotating compressor 8, a combustion chamber 21 and an inward-radial flow contra-rotating turbine 9. The turbine may be arranged for outward-radial flow. The discs 3, 4 are mounted on shaft 1. The disc 5 is mounted on shaft 2 and carries the disc 6 by a cylindrical flange 7 which has ports 23 for admitting the gases to the turbine blading. Air is admitted at one or more openings 17, enters an annular chamber 18 and passes to the compressor bladings through ports 19 in the disc 3. The turbine exhausts through similar parts 26, 25, 27. When the turbine flow is radially outwards, the gases are led from the combustion chamber, which in this case does not enclose the turbine, to the ports 17 and are exhausted from the turbine through ports 23.
Patent GB-190322-A (GB)
Title: Improvements in or relating to rail spikes
IPC: E01B9/06
Filed: 1921-11-03
Abstract: 190,322. Brun, H. M. Skabo-. Nov. 3, 1921. Spikes.-A rail spike of ap. proximately rectangular cross section is made with a circu. lar curvature in the plane of the nose of the spike or in a plane at right-angles theretc and with longitudinal projecting ribs 2 on at least two of its faces. The point may have two oblique faces, as shown in full lines, or only one slanting face, as shown by the dotted lines 4. The ribs may stop at the beginning of the taper of the point, or may extend to the end as shown.
Patent GB-248481-A (GB)
Title: Improvements in signals for road vehicles
IPC: B60Q1/34
Filed: 1924-12-06
Abstract: 248,481. Bray, E. Dec. 6, 1924. Road-traffic signals on vehicles.-A manuallyoperated signal comprises a collapsable hand normally contained within a sheath or casing and capable of being projected outwardly and expanded when the controlling mechanism is operated. The hand is made in three portions 12, 13, 14 pivoted together at 20 and tending under spring action to open out to the position shown. It may be mounted at the end of a pair of levers 8 slidably disposed at their other ends on two uprights 4 arranged vertically in the rectangular casing 2. A pair of links 11 connect the hand portion 12 to a pair of levers 6 pivoted to levers 8 and also to the uprights 4, and coil springs 18 tend to collapse the hand and withdraw it into the casing. The operating cable 10 is attached to the sliding ends of the levers 8. A lamp may be arranged at the side of the signal and be automatically switched on by the signal.
Patent GB-844129-A (GB)
Title: An improved fan for use in chimney stacks, flues and the like
IPC: F04D25/04
Filed: 1958-09-12
Abstract: 844,129. Chimneys and flues. CLARKS POTTERIES Ltd. Sept. 12, 1958 [Nov. 14, 1957], No. 29300/58. Class 25 [Also in Groups XXIV, XXV] and XXXIV] Hot gases are drawn through a flue 1 (or a chimney stack or the like) by fan blades 4 carried by hub parts 4b which are clamped in pairs around the fan shaft 2 by means of bolts 5. The blades 4, shaft 2 and bearings 3 are cooled by air drawn by centrifugal action from the atmosphere through each end of the shaft and passing through the hollow shaft and blades and being discharged into the flue 1 through holes 4c near the tips of the blades. The chimney stack to which the flue passes is also' kept cooler by the discharged cooling air. The holes 4c are disposed on the suction sides of the blades 4 so that the suction assists the centrifugal action in inducing the airflow. The shaft 2 is open at both ends, but where one end is covered by the coupling to the driving motor, air inlet holes 2a are provided. Preferably, the holes 2a are located at a point on the shaft outwardly of the adjacent bearing 3. The fan may be situated across a right angle bend in the flue with the shaft ends projecting through the two outer walls of the flue on either side of the bend.
Patent GB-1173999-A (GB)
Title: Novel Pyridine Derivatives and a process for the preparation thereof
IPC: A61K31/00
Filed: 1967-05-11
Abstract: 1,173,999. Pyridine derivatives. F. HOFFMAN-LA ROCHE & CO. A.G. 11 May, 1967 [12 May, 1966], No. 29346/69. Divided out of 1,173,997. Heading C2C. Novel pyridine derivatives of the formula wherein R is H, NO or NH 2 , R<SP>1</SP> is H or C 1-4  alkyl, and R<SP>6</SP>, R<SP>7</SP>, R<SP>8</SP> and R<SP>9</SP> are each independently H, CH 3 , Br, Cl or CF 3  with the proviso that at least one of R<SP>6</SP>, R<SP>7</SP>, R<SP>8</SP> and R<SP>9</SP> is other than hydrogen, are prepared by condensing under anhydrous conditions using sodium as a condensing agent, the appropriate aniline derivative with the corresponding 2-R<SP>1</SP>-5-vinylpyridine, if desired, nitrosating the resulting amine of the above general formula in which R is H, and, also if desired, reducing the resulting N-nitrosamine of the above general formula in which R is NO.