baber/WOPTO huggingface dataset:
Patent GB-204802-A (GB)
Title: Improvements in and relating to fuel injection nozzles for internal combustion engines
IPC: F02M61/18
Filed: 1922-07-18
Abstract: 204,802. British Thomson - Houston Co., Ltd., (General Electric Co.). July 18, 1922. Cylinders receiving liquid fuel. - Fuel drip from an injection orifice 2 is prevented by a flexible diaphragm 4 which is deformed by the pressure of the fuel during injection, and when the fuel pressure is relaxed exercises a pumping action on the fuel, to withdraw it from the injection orifice. Specification 162,523 is referred to.
Patent GB-721031-A (GB)
Title: Fluid flow regulator
IPC: G05D7/01
Filed: 1953-07-16
Abstract: 721,031. Valves. SMALLPIECE, C. D. P. July 16, 1953, No. 19731/53. Class 135. A fluid flow regulator comprises a tubular body 12 having a bore the central part of which is normally closed, and a rotatable sleeve 20 engaging by a screw thread 21 the exterior of the body and having an internal recess 26 adapted to connect by means of radial ports 25, 29 and one or more longitudinal peripheral grooves 28 in the body 12 the parts 13a, 13b of the bore on either side of the closed central part. The recess 26 is permanently open to the ports 25. Seals 23, 24 are provided between the ends of the sleeve 20 and the body 12. The grooves 28 which open in the threaded part of the body taper towards their upstream ends 27 so that a gradual cut off of the fluid flow is achieved. The movement of the sleeve 20 is limited by stops 31, 32. The central part of the bore is normally closed against flow in the direction A by a spring-loaded ported piston valve 14 which permits substantially uninterrupted flow in the opposite direction. The opening movement of the valve 14 is limited by a stop 34.
Patent GB-1104281-A (GB)
Title: Treatment of clay minerals
Inventor: COWAN COLIN THOMAS
IPC: B01J21/16
Filed: 1964-05-12
Abstract: Acid-activated clay mineral which has been washed so that the acidity is less than 2% is purified by intimately contacting an aqueous slurry or suspension thereof with a cation exchange resin in the hydrogen, alkali metal or ammonium form and subsequently isolating the resin.  If the hydrogen form of the resin is used the acidity so-imparted may be reduced by means of an anion exchange resin in the hydroxyl form or by treatment with a suitable alkali metal compound such as sodium hydroxide which may be in aqueous solution.  The slurry and resin may be stirred and fed to a screen to separate the resin.  The resin may be regenerated by passing countercurrently downwards through a column fed with hydrochloric acid (e.g. 10% by weight).  After washing the resin may be reused.  The slurry may contain 20 to 35% by weight of clay.  The treatment may be effected at below 100 DEG  C., e.g. 50 DEG  to 70 DEG  C., and may be carried out by passing the slurry through a continuously pulsed column of resin (jigged bed technique) or the slurry may be pumped upwardly through a column of resin (expanded bed technique).  When the resin is in the alkali metal form the slurry may be subsequently treated with an anion exchange resin in the hydroxyl form.  Up to 20% by weight of resin (based on the weight of clay) may be employed in the cation-exchange resin treatment.
Patent GB-1391961-A (GB)
Title: Clamping apparatus for use in heat bonding brake block linings to brake shoe tables
IPC: F16D69/04
Filed: 1972-04-28
Abstract: 1391961 Bonding of brake linings to shoe tables L FRIEDMAN 28 April 1972 [30 April 1971] 19762/72 Heading F2E Pressure is applied between brake linings 24, 26 and associated curved shoe tables 20 prior to mutual bonding by apparatus having a pair of support anvils 28 contacting the tables' internal surfaces and a pressure cage assembly comprising a pair of rigid plate assemblies having curved surfaces overlying the linings and a rigid assembly applying radially inward pressure on the plate assemblies, the pressure of the cage assembly being maintained for bonding. Two opposed tables 20 are mounted on corresponding anvils 28 of three spaced chordal plates joined by transverse ribs 34. The plate assemblies comprising two pairs of pressure plates 64, one on each end of two pairs of crossed bars 54, 56, the plates corresponding to the surface means of the linings 24, 26. The bars 54, 56 are swung apart from the Fig. 2, position to overlie the linings 24, 26 and the tables 20 by a hydraulic ram underneath, working a scissors linkage beneath the bars. In the shoe overlying position, the bars 54, 56 are held by hook shaped fasteners 68. The anvils 28 are connected via springs 46 and a rectangular spigot and socket 48, 40. Bifurcated brackets 40, 42 mounting the anvils 28 have facing shoulders which are forced apart to apply compression to the brake shoes by the apparatus in Fig. 7 which approaches the anvil on rollers in rails. When the apparatus is stopped between the anvils 28, wedges 250 are moved forwardly by hydraulic rams 214 to force apart pairs of blocks 230, pivoted at 232 on bars 220, 222, 224, 226, pivoted to a fixed part of the apparatus at their other ends 218. The outer surfaces of the blocks 230 force apart the anvils 28 until the required force is attained. A further wedge is manually driven into a hole in the socket 50 to abut the outer end of the spigot, so that the anvils 28 are retained in the stressed position. The wedges 250 are then retracted and the Fig. 7 apparatus moved back, so that the assembly comprising the pressure plates 64, the brake shoes and the anvils 28, is then placed in a heating chamber. After heating, the Fig. 7 apparatus moves forward, the wedges 250 are actuated to take up the stresses, and the further wedge is removed. The pressure is then released by the Fig. 7, apparatus, the anvils 28 are retracted by an hydraulic ram acting through a linkage, and the bars 54, 56 are brought together to permit removal of the brake shoes. The pivot centre of the bars 54, 56 may be offset from the effective centre of the brake shoes to accommodate linings which vary in thickness along their peripheries.
Patent GB-697425-A (GB)
Title: Improvements in or relating to steam and steam-condensate plants
IPC: F16T1/34
Filed: 1951-08-22
Abstract: <PICT:0697425/III/1> <PICT:0697425/III/2> A steam and steam condensate plant is characterized in that at each plant outlet to the atmosphere there is provided a non-return outlet valve which closes to prevent atmospheric air from entering the plant when its pressure falls, and also an inlet non-return valve which opens when the plant pressure falls to admit a non-corrosive gas, e.g. nitrogen, or a mixture of air and a corrosion-inhibiting substance.  Steam from a line A, Fig. 1, passes through a heating coil B and is wholly or partly condensed, and the condensate, after passing through a heat exchanger U, a control device O1, and a steam trap H1, is fed into a condensate collector N having an outlet D and a condensate container E.  A non-return outlet valve F is closed by a weight G, and a non-return inlet valve J opens when the pressure falls, to admit air filtered in a purifier K and mixed with a noncorrosive liquid, e.g. oil, drawn into the air stream from a container M. In Fig. 2, a steam pressure reducer b and a branch pipe c are provided, and steam enters a heat exchanger d, and condensate is led through a steam trap f, to a collector g, which includes a water separator h.  The steam arising from the partial re-evaporation of the condensate is drawn into steam at full pressure conveyed through pipes a and r.
Patent GB-1174645-A (GB)
Title: Printing Apparatus
IPC: B41J1/26
Filed: 1967-05-01
Abstract: 1,174,645. Selective printing. INTERNATIONAL BUSINESS MACHINES CORP. 1 May, 1967 [16 May, 1966], No. 19930/67. Heading B6F. Continuously rotating type-wheel machines.- Type 12 pivotally mounted on the peripheral surface of a type-wheel 11 are selectively moved out of normal inoperative path into the path of a guide 75 whereby further rotation of the typewheel causes an impression stroke. Type-wheel construction.-The type-wheel 11 comprises a hub 30, Fig. 2, a radial flange 32 with a plurality of fins 33 within each adjacent pair an individual type 12 is pivotally supported. The type 12 has a low-friction guide surface which centres the type within the fins, and a type slug 43 with a character 44. A projection 45 co-operates with the guide 75 for directing the type member 12 to print position. The type-wheel also comprises a toroidal permanent electromagnet 50 having a plurality of wedge-shaped outer polepieces 51 and corresponding polepieces 52 held together by epoxy resin 53 and secured to the hub 30 by screw 55. Type-selecting action.-The type 12 are all normally held in a non-operative path by the permanent magnets but a selected type is moved into an operative path by an electro - magnet 71-73 which opposes the force of the permanent magnet and a spring 57 moves the type 12 to one side so that guiding edges (76) of the guide 75 hold the type clear of the permanent magnets. A second guide comprising an edge 79 on metal cam 78 which engages the projection 45 on the selected type to positively direct the type to point of impact. A further cam or reset ramp 82 engages the type slug 43 on both sides of the embossed character 44 and returns the type to non-operative position. Disposition of characters.-The characters are displaced progressively around the wheel to allow for the continuous feed of the platen carriage 13. Platen carriage.-The platen carriage is positively and continuously moved transversely across the printing wheel or guide rod 107 by means of a linkage 105, 104, pivot 103 and a follower 101 oscillated by a groove 100 in a cam 99, driven by gear and worm 97, 96 from a motor driven belt drive 23, 22, 21. A one-revolution clutch may be included. Carriage-return.-This is effected by the same cam 99 that effects letter-spacing. Line - spacing.-Automatic and adjustable line-spacing is effected when the carriage-return movement causes a roller 137 to ride up a ramp 136, and via adjustable linkage 145, 138-142, pivot or gripper mechanism 119, 118, 117. Web-feed.-The web 14 is fed over the platen 93 by the gripper mechanism. A blade 115 prevents return movement, and the feed bar 117 may be used as a tear-off bar.
Patent GB-188033-A (GB)
Title: Improvements in or relating to sheep shears
IPC: B26B19/24
Filed: 1921-07-26
Abstract: 188,033. Trade Unionists' Sheep Shear Co-Operative Society, Ltd., and Birks, W. H. July 26, 1921. Hand shears. - The blades of sheep shears are adjusted and locked at the correct cut by means which permit the blades to be readily removed for sharpening &c. A bolt e, having an eccentric head f engages in an opening b<2> in the tang of the ,blade b, and locks the tang against the shank d of the handle. The blade is rotated about the bolt e, and thereby adjusted longitudinally relative to the handle, by a grub screw i applied to the rear edge of the tang b<1> of the blade. Reference has been directed by the Comptroller to Specifications 6047/03 and 232/07.
Patent GB-596774-A (GB)
Title: Complete gasification plant for the production of water gas
IPC: C10J1/213
Filed: 1945-08-03
Abstract: 596,774. Water-gas plant. BURNS, W. L., GIBSON, J. W., and BALFOUR & CO., Ltd., H. Aug. 3, 1945, No. 19989. [Class 55 (i)] In water-gas plant comprising a retort or carbonizing zone 10 and a gasification zone 11 above an inclined grate 12 beneath which air is admitted, an annular flue 14 communicates at its lower end with zone 11 and serves in turn as an upward passage for blast gases and as a downward superheating passage for steam and enrichment vapour. Air is admitted to the grate by a pipe 13 having a bleeder connection 18. Blast gases leave the plant by an outlet pipe 25 and steam is introduced to the annular passage through a pipe 15 together with vaporized enrichment medium from a tank 16. The retort structure has a cover 19, a charging hopper 20 and a gas off-take 21. Specification 585,040 is referred to.
Patent GB-1028052-A (GB)
Title: Improvements in or relating to a crystalline alkaloid of mitragyna speciosa and compositions thereof
Inventor: BECKETT ARNOLD HEYWORTH
IPC: C07G5/00
Filed: 1963-05-20
Abstract: An alkaloid of empirical formula, C23H30N2O4, characterized by a melting point of 95-96 DEG  C.; an optical rotation of [a ]250 = - 140.6 degrees (concentration: 0.3% by weight in CHCl3) and having specified ultra-violet and infra-red absorption spectra, is produced from the leaves of Mitragyna speciosa by extraction with ethanol. The extract, after removal of ethanol therefrom, is acidified to pH 3-4 with glacial acetic acid and diluted with water.  Insolubles are filtered off and the liquor is cooled to 0-5 DEG  C., adjusted to pH 11 with conc. ammonia and extracted with ether.  The ether is removed and the residue is dissolved in anhydrous ether.  This solution is passed through a chromatographic column of activated alumina and the alkaloid is collected and recrystallized from ethanol.  The alkaloid may be dissolved in anhydrous ether and poured into a solution of hydrogen chloride in isopropanol.  On addition of ether, the hydrochloride salt precipitates. On drying, M.P. of the hydrochloride is 253-254 DEG  C.  M.P.s of the acetate, oxalate, and ethane-disulphonate are specified as being 172 DEG  C.; 219-220 DEG C.; and 272-273 DEG  C. (dec.) respectively.ALSO:A pharmaceutical composition, having antitussive and analgesic activity, comprises a pharmaceutical carrier and a crystalline alkaloid produced from leaves of Mitragyna speciosa, or a nontoxic pharmaceutically acceptable addition salt thereof, said alkaloid having the empirical formula: C23H30N2O4 and characterized by a melting point of 95-96 DEG C. and an optical rotation of [a ]25 DEG  = -140.6 DEG (concentration : 0.3% by weight in chloroform).  The ultraviolet and infra-red absorption spectra are also set forth as characteristics of the alkaloid.  The preferred salt is the ethanedisulphonate.  The carrier may be either solid or liquid.  A time-delay material may be included in the carrier. Administration may be effected orally or parenterally in conventional forms.
Patent GB-832689-A (GB)
Title: Improvements in and relating to springs and a method of producing the same
IPC: F16F1/04
Filed: 1956-06-28
Abstract: 832,689. Making springs. PEDERZANI, W. June 28, 1956 [June 29, 1955], No. 20097/56. Class 83 (2). A method of making a damping spring comprises coiling a blank, having the form of a parallelogram and cut from steel strip of constant thickness. A flat steel strip of constant thickness is trimmed to the shape 10 shown at Fig. 5, approximating to the form of a parallelogram by making cuts 11 and 12. The lengths of pitch cuts 11 and 12 are equal to the length of that part of the periphery of the initial and end convolutions 20, and 22, Fig. 1, respectively, which is exposed in the end plane of the spring. The angle of the cuts 11 and 12 and consequently the end widths 21 and 23 will depend on the pitch of the spring. The blank 10 is bent edgewise into the arcuate form 10<SP>1</SP>, Fig. 6, the mean radius R of the bend being determined by the distance between the centre-line of the surface of a convolution, and the point of intersection 13 of the generating lines 14 and 15 with the longitudinal axis 17 of the spring as shown in Fig. 1. The spring is then made by winding the pre-bent blank 10<SP>1</SP> tightly on to a conically recessed mandrel so that the convolutions overlap for a portion of their length. The edges 11 and 12 of the end windings 20 and 22 of the spring will lie in a plane perpendicular to the axis 17 without cutting or grinding.
Patent GB-574824-A (GB)
Title: Apparatus for preparing plaster or the like bandages
IPC: A61F13/04
Filed: 1943-12-02
Abstract: 574,824. Finishing and rolling fabrics. PARR, T. L. Dec. 2, 1943, No. 20161. [Classes 42 (i) and 42 (ii)] [Also in Group VI] Apparatus for preparing plaster or like bandages comprises a container 7 for holding the plaster or other dry powdered substance, e.g.- sulphanilamide, a tray 22, means to remove the powder from the tray to permit the frontal portion of the bandage 36 to be freely located on a winding spool or spindle 29 without contact with the powder, and then to locate the powder over at least a substantial portion of the bandage on the tray, means, such as a member 30 with adjustable studs at its edge adjacent the tray, for spreading the powder on to the bandage at a desired thickness, and means to rotate the spindle 29, The tray is pivoted at one end so that it may be swung back, and also its pivotal axis may be moved into a higher position, as shown in Fig 8. The bandage is then threaded through the apparatus, the pivotal axis lowered, and the tray moved forward to the position shown in Fig. 9, preferably at about 40‹ to the horizontal, picking up the bandage and the powder on the way. Prior to being wound on the spindle 29 the bandage carrying the powder may be passed between two rollers 9 and 14, to press a portion of the powder into the interstices of the bandage; these rollers are rotated by contact with the spindle 29, and serve also to draw the bandage upward across the tray. Cords 17 and springs 21 hold the rollers in contact, and scraper rods 23 and 31 keep them free from powder. The roller 14 is mounted on the same pivotal axis as the tray, so that when this axis is moved to its higher position the rollers are separated; such action is effected by operating a handle 28c to move a slide 13 suspended inside the container on four pivoted arms. A second handle 25c controls the swinging of the tray, arms 25 sliding on tracks 27, and co-operating with notches 27b therein. The winding sp:ndles 29 are formed as shown in Fig. 7, with slots 29c extending along their length to receive rods 35 with bulbous ends for clamping the end of the bandage. The apparatus may also be used for rolling the bandage before incorporating the powder therewith, by rotating the spindle 29 with the end of the bandage attached, the tray being swung back, and its pivotal axis in the lower position.
Patent GB-824123-A (GB)
Title: Improvements in or relating to voltage control devices
IPC: H02J7/12
Filed: 1956-06-29
Abstract: 824,123. Automatic voltage control systems. SOC. DES ACCUMULATEURS FIXES ET DE TRACTION. June 29, 1956 [June 29, 1955; June 8, 1956], No. 20310/56. Drawings to Specification. Class 38 (4). A gas-tight alkaline cell, e.g. of the type described in Specification 715,903, [Group XXXVI], having sintered metal electrodes with or without active material, serves as a voltage reference source in a system for automatically controlling battery charging voltage. Automatic temperature compensation may be provided by locating the cell in or near the battery casings. In one arrangement the cell and battery voltage respectively energize opposing windings of a saturable reactor in series with the A.C. supply to a battery charging rectifier. The cell is also charged from the rectifier output. The saturable reactor may alternatively be arranged in series with the input to a rectifier energizing the field winding of a self-excited alternator supplying a battery charging rectifier. In another modification the cell and battery voltage respectively energize opposing windings of a differential relay short-circuiting a resistor in series with a D.C. supply for charging the battery. The cell and battery voltages may also act in opposition to control the position of a rheostat in series with a D.C. supply for charging the battery. An arrangement involving a twostage transistor amplifier and two gas-tight alkaline cells controlling a saturable reactor is also described.
Patent GB-670456-A (GB)
Title: Improvements in or relating to printing machines with belt or chain type printing block carriers
IPC: B41F17/00
Filed: 1949-08-06
Abstract: 670,456. Printing machines. SEMPERIT OSTERREICHISCH-AMERIKANISCHE GUMMIWERKE AKT.-GES. Aug. 6, 1949 [Oct. 13, 1948], No. 20492/49. Addition to 640,058. Class 100 (ii). In a printing-machine having printing blocks carried on an endless belt or chain, two printing units are provided in one machine assembly in association with guide means for one or two paper strips to be printed, which means can be selectively used so as to provide on the one hand for simultaneous printing on one side of each of two strips by means of the two block carriers working independently, and on the other hand for printing on both sides of one strip by means of the two carriers consecutively. Block carriers 1, 2 co-operate with impression cylinders 3, 4 near the ends of flat runs of the carriers and with inking-. mechanism 5, 6. The axes of the cylinders 3, 4 are about 1 cm. below those of the top guide rollers of the belts. In the first method of operation, a strip passes from roll 7 over guide rollers 14, 15, cylinder 3, and either roller 16 to roll 9 or rollers 17, 18 and through cutting means 12 to a storage device 11. A second strip passes from roll 8 over roller 19, cylinder 4, rollers 21, 20, and either to roll 10 or to cutting means 12 and storage device 11. In the second method of operation, a strip passes from roller 7 over rollers 13, 21, or from roll 8 over roller 19, over cylinders 4, 3, and rollers 17, 18 to roll 10 or to cutting means 12 and storage device 11. For either method of operation, an additional belt or chain printing mechanism 22, 23, may be provided for each unit to co-operate with the cylinders 3, 4 and thus allow two-colour printing, or the additional printing device may comprise a printing cylinder, to allow additional printing, such as the addition of supplementary text to an open part of a printing composition such as the "stop press " column of a newspaper. The parent Specification is referred to.
Patent GB-1191280-A (GB)
Title: Apparatus for Controlling the Output of a Digital Computer
Inventor: TROUSDALE ROBERT BASHFORD
IPC: G06K15/22
Filed: 1967-05-03
Abstract: 1,191,280. Computer output. CALIFORNIA COMPUTER PRODUCTS Inc. 3 May, 1967 [3 May, 1966], No. 20625/67. Heading G4A. A digital computer controls an incremental graphical plotter via a control unit which can communicate in both directions with the computer and stores computer commands for energizing three mechanisms of the plotter. After receiving a "start" signal from the computer, the control unit requests successive command characters from the computer, stores each in a register on reception and decodes it to control X and Y pen movement and up/down pen movement. A "complete" signal from the computer finally deactivates the plotter. The control unit may also contain a memory.
Patent GB-183843-A (GB)
Title: Roller bearing for the spindles of spinning machines
IPC: D01H7/04
Filed: 1922-07-28
Abstract: 183,843. Norma Cie, Ges., and Kirner, J. July 28, 1921, [Convention date]. Combined bolster and footstep bearings; roller bearings for the spindles of spinning machines, Rollers g with plane ends are mounted between the parallel plane ends h of an outer race ring f. The rollers bear directly on the spindle a which is not specially hardened. The race ring f is held in a sleeve d which contains a step bearing e and which is held by its lower portion only in a casing c so as to allow slight lateral movement of the upper portion. The race ring f may be spherically seated in the sleeve d and at least one of the ends h of the ring f may be formed by a separate piece and held in contact with the remainder of the ring f by the end of the sleeve d.