baber/WOPTO huggingface dataset:
Patent GB-1196903-A (GB)
Title: Improvements in Ball Piston Hydrostatic Pumps or Motors
Inventor: FIRTH DONALD
IPC: F01B1/06
Filed: 1965-07-31
Abstract: 1,196,903. Reciprocating pumps and motors. NATIONAL RESEARCH DEVELOPMENT CORP. 25 July, 1966 [July 31, 1965], No.33231/66. Divided out of 1,196, 901. Heading F1A. A cam track for a linear or radial ball piston pump or motor is profiled so that each half lobe produces a piston stroke comprising a period of constant acceleration followed by a period of constant deceleration, a progressive reversal of ball velocity occurring on the transition from one period to the next period. Each period of acceleration of one ball is of the same duration as a period of deceleration of another ball. The lobe is grooved to receive the ball pistons, the depth of the groove increasing at the crests of the cam track. The cam track may also be shaped to provide a dwell period at each inner dead centre of the ball pistons. Equations are given for producing the cam track profile.
Patent GB-1475385-A (GB)
Title: Apparatus for the abrasive blasting of tubes or bars bent to a hairpin shape
IPC: B05B13/02
Filed: 1974-07-26
Abstract: 1475385 Blasting MANNESMANNROHREN-WERKE AG KRAFTWERK UNION AG and SANDVIK AB 26 July 1974 [30 July 1973] 33250/74 Heading B3D Apparatus for abrasive blasting of tubes or bars 10 bent to a hairpin shape comprises a feed roller bed having reversibly driven rollers 1 and vertically arranged horizontally adjustable guide rollers 2, a blasting chamber 3 having sealing means 4 and a horizontally mobile pivotable arm 9 arranged in the chamber and carrying a nozzle ring 7 provided with blasting nozzles 8, a delivery roller bed 5 similar to the feed roller bed, and an adjustable abutment 6 which operates the roller bed rollers and the pivotable arm. The arm 9 is hollow and communicates with the ring 7 which is also hollow and carries the nozzles 8. The tube 10 is placed on the feed roller bed 1 which is driven to carry the tube through the sealing means 4 into the chamber 3. The ring 7 surrounds one leg of the tube which is thereby treated during the movement of the tube on to the delivery roller bed 5. When the tube strikes the abutment 6, switches are operated which stop the roller bed 5 and cause the arm 9 to pivot through 180 degrees so that the bent part of the tube is treated. At the end of the pivotal movement, the roller bed 5 is driven to return the tube to the feed roller bed, the second leg of the tube being treated during the return movement. In another arrangement, a further nozzle ring is provided for treating the second leg during further movement in the feed direction. Reference has been directed by the Comptroller to Specification 1,408,379.
Patent GB-1485627-A (GB)
Title: Sideboards or like articles of storage furniture
IPC: A47B47/04
Filed: 1976-12-31
Abstract: 1485627 Cabinets E P FRANKLIN 31 Dec 1976 33274/73 Heading A4B A dismantleable sideboard has a top 1 provided in its underside with front and rear parallel rows of flanged, internally threaded bushes 14, vertical panels forming side walls 3a and partitions 8a, a bottom plate 5 and a plurality of tie rods 12 threaded at both ends and having a flange 14 adjacent one end, the tie rods 12 passing through aligned holes in the bottom plate 5 and the vertical panels 3a, 8a and being screwed into the bushes 14 so that the tie rod flanges 13 bear on the bush flanges, and the lower ends of the rods 12 being screwed either into nuts 17 or into feet 4a. The vertical panels have ledges or runners 11 to support shelves 9a or drawers 6a. Hinged or sliding doors may be provided. The vertical panels may have upper and lower edges formed with complementary spigots and sockets to effect vertical alignment of superposed panels. Alternatively, holes to receive dowels are provided in the upper and lower edges.
Patent GB-466775-A (GB)
Title: Improvements in or relating to date indicators
IPC: G09D3/04
Filed: 1935-12-02
Abstract: 466,775. Smokers' ash-trays. GAUNT, C. F. Dec. 2, 1935, No. 33299. [Class 130] [Also in Groups XIX and XVIII] An ash-tray similar to that described in Specification 456,073, and comprising a receptacle 7, an 'upstanding rod 6 and a slidable cover 12, is utilized as a date-indicator by marking the date figures on the rod 6 and providing a slidable indicating member 15, which may also carry month or day-name cards 18.
Patent GB-803697-A (GB)
Title: Improvements relating to gate-leg tables and the like
Inventor: BALLANTYNE GILBERT
IPC: A47B1/08
Filed: 1953-12-01
Abstract: 803,697. Tables. SCOTTISH CO-OPERATIVE WHOLESALE SOCIETY, Ltd. March 7, 1955 [Dec. 1, 1953], No. 33306/53. Class 52(3) A table with underframe 10 and drop leaves 15 has double gate legs with an inner gate 16 hinged to the frame 10 and an outer gate 17 hinged to the free end of gate 16, the legs being moved to their opened out or folded positions by a manually operated lever having a short arm 20 with finger grip 24 and a long arm 19 provided with a slot 21 engaged by a pin 22 at the top of outer gate 17. The frame 10 incorporates a drawer 13 and cupboard 14. In a modification, the lever has a straight arm carrying a pin engaging a groove in the top of gate 17 and is moved by a short arm pivoted to the straight arm.
Patent GB-1310705-A (GB)
Title: Method for the preparation of n-3-oxyhydrocarbon - substituted acrylamides
IPC: C07C231/00
Filed: 1970-07-09
Abstract: 1310705 Oxohydrocarbon substituted acrylamides LUBRIZOL CORP 9 July 1970 [10 July 1969] 33412/70 Heading C2C A method for the preparation of a compound of the formula wherein each of R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP>, R<SP>4</SP> and R<SP>5</SP> is hydrogen or a hydrocarbon radical and R<SP>6</SP> is hydrogen or a C 1 -C 7  alkyl radical comprises (1) preparing a mixture of a nitrile of the formula and sulphuric acid, said sulphuric acid being at least 93% by weight concentration and the molar ratio of said sulphuric acid to said nitrile being at least 1À8 : 1; (2) introducing into said mixture a 3-oxoalcohol of the formula at a temperature below 30‹ C. and maintaining said temperature during the reaction of said alcohol with said nitrile and (3) recovering the N - 3 - oxohydrocarbon - substituted acrylamide from the reaction mixture. The examples describe the preparation of (1,1-dimethyl-3- oxobutyl) acrylamide.
Patent GB-1152896-A (GB)
Title: Process for the production of Nitrilotriacetonitrile
IPC: C07C255/25
Filed: 1967-07-21
Abstract: 1,152,896. Preparation of nitrilotriacetonitrile. FMC CORP. 21 July, 1967 [29 July, 1966], No. 33542/67. Heading C2C. Nitrilotriacetonitrile is obtained by (a) preparing an aqueous mixture containing formaldehyde and hexamethylenetetramine, (b) adding sufficient sulphuric acid to the aqueous mixture to reduce the pH of the aqueous mixture to below 1, (c) adding hydrogen cyanide to the aqueous mixture, (d) forming nitrilotriacetonitrile in the aqueous mixture in the presence of sufficient sulphuric acid to provide a mole ratio of H 2 SO 4 : hexamethylenetetramine of from 2: 1 to 5:1, and (e) separating nitrilotriacetonitrile from the aqueous mixture. The formaldehyde is suitably employed in at least stoichiometric amounts relative to the hexamethylene tetramine and the aqueous mixture is preferably cooled to 0-10‹ C. before reducing the pH to less than 1 by the addition of sulphuric acid, at which point the total quantity of sulphuric acid employed in the process may be added. The reaction is suitably effected below 80‹ C. and the product may be saponified with NaOH or KOH to form the sodium or potassium salt of nitrilotriacetic acid; nitrilotriacetic acid may be obtained by acidifying the sodium or potassium salt with a mineral acid.
Patent GB-789210-A (GB)
Title: Production of organic acid esters of cellulose
IPC: C08B3/22
Filed: 1955-11-23
Abstract: A process for the manufacture of organic acid esters of cellulose includes the steps of adding to a solution of the cellulose ester in a water-immiscible solvent containing an acid esterification catalyst at least sufficient of a nitrogenous base to neutralize all the acid catalyst, and then subjecting the solution to solvent extraction with an aqueous medium, whereby water-soluble materials are removed from the solution, sufficient of the water-immiscible solvent being present throughout to prevent precipitation of the cellulose ester. Solutions of cellulose esters to which the process may be applied are these obtained by treating cellulose with one or more anhydrides of acids containing 2-4 carbon atoms in the molecule, preferably acetic anhydride, in a water-immiscible solvent such as nitromethane, m-cresol, cyclopentanone, pyrrole, furfural, trichloroethanol, tetrachloroethane, trichloroethane or chloroform, but particularly in methylene chloride, in the presence of an acid catalyst such as perchloric acid.  The nitrogenous base may be ammonia, ethylamine, diethylamine, triethylamine, aniline, piperidine, quinoline or pyridine and is preferably added in a 10-50 per cent molar excess over the catalyst.  The aqueous extracting medium may contain small amounts of the lower alcohols, methyl or ethyl acetate, pyridine or acetone.  If desired, the ester may be partly hydrolysed before extraction of the solution.  The extraction process may be carried out either continuously by passing the solutions in co- or counter-current or, less desirably, batchwise.  The separated solution of cellulose ester contains small amounts of water, which may be removed in the case of methylene chloride solutions by azeotropic distillation of part of the solvent.  The final solution may be spun directly or may first be treated in known manner by filtering or decolorizing or by the addition of the usual adjuncts, such as pigments, dyes, plasticizers, or fire-retardants.  The process may be applied to solutions of cellulose triacetate. Specifications 779,502 and 789,212 are referred to.
Patent GB-1089328-A (GB)
Title: Improvements in fluid pressure control systems
IPC: A61B5/022
Filed: 1965-08-05
Abstract: 1,089,328. Measuring blood pressure. INTERNATIONAL BUSINESS MACHINES CORPORATION. Aug. 5, 1965 [Sept. 14, 1964], No. 33587/65. Heading A5K. [Also in Division G3] An air pump 10 is connected to two systems 25, 50, Fig. 1, the first of which is a constantvolume system and consists of a tank 26, a pressure regulator 28 and a needle valve 30 the output from which passes to atmosphere; the two last-named control the amount and the rate of decrease in the pressure. The tank 26 is also connected to the diaphragm closure 42 of a valve 40 to control the flow therethrough from the second system 50 to atmosphere. The diaphragm is lightly loaded to the closed position by a spring. The second system is part of a blood-pressure measuring-device including an occluding arm-cuff 55 which is pressurised by the pump 10 and a bellows actuator 60 that opens contacts P.C.C. to stop the pump when the cuff pressure has attained the given level. A pressure and a pulse transducer 65, 70 are associated with the second system to give electrical signals indicative of the air pressure and pulse rate. The two air systems may be separate and operate at different pressures. When the desired cuff-pressure is reached and the pump is shut down the pressure in tank 26 reduces at a constant rate and acting on valve 40 causes the cuff-pressure to escape to atmosphere and. hence decrease at a constant rate.
Patent GB-1446500-A (GB)
Title: Corona discharge method of depleting alkali metal ions from a glass surface region
IPC: C03C23/00
Filed: 1974-07-31
Abstract: 1446500 Ion-depletion of glass RCA CORPORATION 31 July 1974 [15 Aug 1973] 33692/74 Heading C1M [Also in Division H1] A surface region 3 of a body 2 (Fig. 1) of glass containing at least 3% by weight of one or more alkali metal oxides is depleted of alkali metal ions by: disposing anode and cathode electrodes 8, 10 adjacent opposite surfaces 3, 5 of the glass body 2; establishing a corona discharge between at least one of said electrodes and the adjacent surface of the glass body 2, while heating at a temperature less than that at which the glass becomes deformed; and continuing the discharge treatment for a time sufficient to cause alkali metal ions to migrate away from the glass surface adjacent the anode 8, so that a region 3 depleted of the alkali metal ions is formed. The glass treated may be a soda-limesilica glass, the treatment being at above 200 C. The discharge treatment may be conducted at a pressure of 10<SP>-2</SP>-10 mm. Hg, in a vacuum chamber 4. The electrodes in such a process may be perforated metal sheets 8, 10, connected to a D.C. power source 16 which provides the energy for the corona discharge. The glass body 2 may be heated by passing alternating current, from A.C. source 14, through anode 8. In an alternative embodiment (Fig. 3), glass body 2a is treated at atmospheric pressure in an atmosphere of electron-attaching gas, e.g. air or oxygen. The glass is disposed in a heating chamber 26 of furnace 24, and preferably spaced from each electrode by 1-30 mm. The cathode 30 is at least one point electrode (e.g. Pt wire), and the anode 28 is either a multi-point array or a fine wire array (28), e.g. tungsten wire. A mica mask 32 may be placed adjacent the surface 3a from which ions are to be depleted. The power for the corona discharge is supplied from D.C. source 34. In either embodiment a layer of, e.g., NaOH may be formed on the surface (5 or 5a) adjacent the cathode, which layer is removed by washing with water. The ion-depleted layer may be up to, e.g., 2 microns in depth.
Patent GB-759128-A (GB)
Title: Improved twisting machine for twisting yarns
Inventor: RUPF WERNER
IPC: D01H1/00
Filed: 1954-11-22
Abstract: 759,128. Uptwisters. VEB SPINNUND ZWIRNEREIMASCHINENBAU KARLMARX-STADT. Nov. 22, 1954, No. 33795/54. Class 120 (2). In order to obtain long thread paths and a reduction in the length of twisting-machines, winding and twisting units comprising winding bobbins 15, thread tensioning means 13 and spindles 12 are staggered in a vertical direction in relation to one another.
Patent GB-1102856-A (GB)
Title: Improvements in or relating to apparatus for reclaiming particulate material
IPC: B65G65/20
Filed: 1966-07-27
Abstract: 1,102,856. Reclaiming materials from piles. LINK-BELT CO. 27 July, 1966 [3 Aug., 1965], No. 33836/66. Heading B8E. [Also in Division E1] A pile reclaiming machine comprises a bridge 11 extending across the pile face f and movable on rails 20 towards said face, a harrow 90, movably mounted on said bridge to agitate the pile face, and a bucket wheel 40 also mounted on the bridge for movement independant that of the harrow. The harrow is pivotally mounted at 91 and by a pulley arrangement 92, 93, whereby to vary the angle of inclination, to a carriage 85 with wheels 86 running on rails 26 on the bridge and is arranged by means of limit switches 101 to traverse only the central portion of the bridge, i.e. that part of the bridge adjacent the peak of the pile. The bucket wheel 40 with buckets 41 delivers the material on to a rotating disc 50 for transfer to an endless conveyer 60 feeding an endless cross-conveyer 70 mounted on and extending parallel to the bridge 11 and which in turn feeds an endless conveyer 80 extending along the sides of the pile. The bucket wheel is mounted in bearings 45 on a carriage 30 with wheels 32 running on rails 25 on the bridge and arranged to traverse the whole of the width of the bridge. Appropriate drive means 16, 35, 87, 46, 52, 61, 72 are respectively provided for the bridge 11, the bucket wheel carriage 30, the harrow carriage 85, the bucket wheel 40, the rotating disc 50, the conveyer 60 and the cross-conveyer 70. Additional limit switch (116), (117) (Fig. 5, not shown) actuated by the harrow carriage 85 cause said carriage to perform short traverses at the ends of its travel to spread the pile towards the sides and so provide a more even pick-up for the bucket wheel. The harrow carriage 85 preferably leads the bucket wheel carriage 30 in its traverses across the bridge.
Patent GB-751488-A (GB)
Title: Improvements in or relating to curtain rails and the like
IPC: A47H1/06
Filed: 1953-12-05
Abstract: 751,488. Suspending curtains. COPE & TIMMINS (LONDON) 1911, Ltd., and GLATZEL, W. Dec. 2, 1954 [Dec. 5, 1953], No. 33875/53. Addition to 643,245. Class 52(5). In a modification of the junction fitting disclosed in the parent Specification, the means for fixing the aligned rail to the junction fitting, adjacent the bend of the curved rail secured to the fitting, comprises a socket formed by bending one end of the fitting to engage the end of the rail, the socket being secured to the rail by a bolt. As shown, the flat top wall 5 of the junction fitting 1 has means 10 for fixing a suspension member and is slotted at 6 and bent to form downwardly curved portions 3 forming a socket a for the end of the rail 4 to which it is secured by a bolt 8.
Patent GB-1061853-A (GB)
Title: Tin purification process
IPC: C22B25/08
Filed: 1965-08-09
Abstract: Impure tin metal is treated to produce an oxidized tin compound substantially free from impurities (see Division C1), the tin compound is separated from the solution and may be reduced with hydrogen or carbon reductants to produce tin metal of better than 99.9% purity.  Reduction may be with hydrogen at 570 DEG C.  The impure tin metal may be produced by reducing cassiterite, which may be in the form of finely divided particles less than 150 m  in size with hydrogen or carbon. The reduction may be carried out below 650 DEG C. to produce crude tin powder or at 650-750 DEG C. to produce molten tin which is preferably atomized before reacting.ALSO:Impure tin metal is treated at below 30 DEG  C. and under an overpressure of oxygen with aqueous sulphuric acid containing at least 2 moles of acid and a total of least 3 moles of sulphate anions per mole of tin to be leached; leaching is continued to produce a solution containing dissolved tin sulphate; the resulting solution is separated from undissolved residue; the dissolved tin sulphate is hydrolysed by heating the solution to above 50 DEG  C. under an oxygen overpressure to produce an oxidized tin compound substantially free from impurities; and the tin compound is separated from the solution.  The solution of tin sulphate contains Sn (IV) and Sn (II) sulphates and the oxidized tin compound is SnO2.  The total SO42- requirement may be provided as sulphuric acid or up to one-third may be provided as a water-soluble sulphate.  The oxygen overpressure during leaching may be above 5 p.s.i. at a temperature of 10-30 DEG  C. and the tin sulphate may be hydrolysed by heating the solution at 90 DEG  to 110 DEG  C. under an oxygen overpressure of above 5 p.s.i.  The oxidized tin compound may subsequently be reduced with carbon or hydrogen reactants, e.g. reduction with H2 at 570 DEG  C., to produce tin metal of better than 99.9% purity.  The impure tin may be produced by reducing cassiterite, which may be in the form of finely divided particles less than 150 m  in size, with hydrogen or carbon, or may be impure tin scrap.  The solution containing regenerated H2SO4 separated from the SnO2 precipitate may be recycled to the leaching step.
Patent GB-300034-A (GB)
Title: Improvements in apparatus for removing mud and silt from waterways
IPC: E02F3/54
Filed: 1927-12-16
Abstract: 300,034. Myddelton, R. F. Dec. 16, 1927. Scraping-apparatus.-Hand-operated means for removing mud and silt from rivers, drains and other waterways comprises a long pole or handle with a cross-piece at one end; a scoop with a back, two sides, and a bottom is hinged to, or suspended from the cross piece at two points near to the top of the back of the scoop. At a point on the pole near that with which the front end of the scoop may contact, a block containing a sheave is fixed, and a rope or flexible wire leads from near the front of the bottom of the scoop and through the block and is secured to the free end of the pole so as to limit the swing of the scoop. Upper parts of the sides and back of the scoop may be perforated.
Patent GB-1176192-A (GB)
Title: Improvements relating to Vehicle Auxiliary Lamps
Inventor: IRWIN GORDON HARRISON
IPC: F21V31/00
Filed: 1967-07-25
Abstract: 1,176,192. Vehicle lamps. RAYDYOT Ltd. 23 July, 1968 [25 July, 1967], No. 34129/67. Heading F4R. A vehicle lamp comprising a lens 12 and a body 11 which forms or houses a reflector is supported by a bracket 13 having a first arm 31 which projects into the lamp and carries a bulb 53 and a second arm 32 which is adapted to be attached to the vehicle. The bracket projects through an aperture in the body 11 and is provided with lugs 40 which are adapted to pass through slots (26, Fig. 2, not shown) around the periphery of the aperture and engage behind the intervening portions of the body to form a bayonet joint so that the bracket can be removed from the body by withdrawing the first arm through the aperture. Two diametrically opposite lugs are provided with a groove and slot respectively which co-operate with projections on the body to lock the bracket in a predetermined position, and a resilient gasket 42 ensures a tight seal. The arm 31 is hollow and the mounting plate 65 of the bulb 53 is held against the end of the arm by a spring clip 63 which also secures the bulb hood 70, the bulb leads 51 being led out through the slotted lug. The lens and body are permanently secured together by epoxy resin.
Patent GB-1060177-A (GB)
Title: Method for stabilizing spandex core yarn
IPC: D06C29/00
Filed: 1965-08-10
Abstract: An elastic yarn comprising a spandex core covered by wrapping or core spinning an inelastic yarn of natural or man-made fibres thereabout is stabilized by elongating the yarn to the maximum extent, reducing the yarn tension so that the yarn retracts a predetermined amount and heat setting the yarn while thus partially tensioned to prevent any further retraction.  The yarn may be partially retracted before being wound onto a skein reel, or afterwards by reducing the perimeter of the reel.  The yarn whilst on the reel is stabilized in a steam chamber.
Patent GB-1326217-A (GB)
Title: Injector for drawing off filamentary material
IPC: B65H54/88
Filed: 1970-07-15
Abstract: 1326217 Feeding strands GLANZSTOFF AG 15 July 1970 [19 July 1969] 34246/70 Heading D1F In an injector for drawing off filamentary material travelling at high speeds induction takes place in a plurality of stages. In one embodimet, Fig. 1, the injector comprises a suction tube 1, first and second stage tubes 2, 3 respectively, which are fed with gas, e.g. compressed air, by respective supply lines 5, 6 so that the filamentary material 7 is sucked in series through the chambers 1, 2, 3 and discharges through a diffuser 4. In a preferred embodiment, Fig. 2, the injector is mounted on a handle 8 to form a gun in which the flow of compressed air to the supply lines 5, 6, the latter having a diaphragm 15, is controlled by a conical valve 10 operated by a trigger arm 13. A bag (17), Fig. 3 (not shown), which may have an inner supporting cage (18) may be fastened to the diffuser 4 to collect the filamentary material drawn off. (For Figures see next page)