baber/WOPTO huggingface dataset:
Patent GB-785754-A (GB)
Title: Improvements in and relating to drilling rigs
Inventor: ENGLAND BRIAN AITCHISON
IPC: E21B19/087
Filed: 1954-06-01
Abstract: 785,754. Boring earth and rock. HANDSENGLAND OILFIELDS EQUIPMENT, Ltd. June 1, 1955 [June 1, 1954], No. 16206/54. Class 85 [Also in Group XXIV] A portable drilling rig is mounted on a vehicle in which the drilling string is suspended for vertical movement from a straight line motion linkage and is driven by a motor at or near its point of suspension. The Scott-Russel type of straight line linkage may be used although a modified form is preferred (see Group XXIV). A jib 12 is pivoted at 13 to a frame 17 capable of moving fore-and-aft of the vehicle 10 about a pivot 15 as single or double acting hydraulic rams 27 raise and lower the jib 12. A drill string 38 passes through a guide 40 and is connected at its upper end to a hollow spindle 32 of an hydraulic motor 28 pivoted at 30 to the end of the jib 12 which moves approximately in a vertical straight line. Drilling fluid or compressed air is supplied to the drill string through a pipe 42, the fluid passing through the hollow spindle 32 of the motor 28. To add a new length of pipe the drill string is supported in the guide 40 by slips, the motor 28 disconnected from the string and then turned about its pivot 30 when the new pipe is connected to it (see Fig. 2, not shown), the jib 12 is raised until the new pipe is vertical and above the drill string when the new pipe can be connected, the slips removed and drilling continued. The rams 27 may be replaced by a screw jacks.
Patent GB-197563-A (GB)
Title: Improvements in dumbturners for sugar-cane mills
IPC: C13B10/06
Filed: 1922-06-12
Abstract: 197,563. McNeil, J., (Morison, J.) June 12, 1922. Roller mills.-To assist the discharge of juice from the cane in its passage over the dumbturnerplate of a sugar-cane mill, the plate A is provided in its surface with a series of transverse grooves B which merge in the plate towards its rear edge, where they coact with and adjoin a series of similar grooves C extending vertically across the rear edge of the plate. The grooves are preferably of truncated triangular form in cross-section as shown in Figs. 1 and 3, or of rectangular form as shown in the case of the grooves B in Fig. 4.
Patent GB-924377-A (GB)
Title: An improved flow-control valve for fluids and solids
IPC: F16K3/03
Filed: 1960-05-07
Abstract: 924,377. Valves. E. A. WARZYNSKI, [trading as MIDLAND INDUSTRIAL DESIGNS]. May 3, 1961 [May 7, 1960], No. 16220/60. Class 135. [Also in Group XXX] A flow-control valve, such as for controlling the outlet from a hopper, comprises a valve body 10 having a flow passage 12, a central member 20 mounted in the flow passage, an iris diaphragm having overlapping blades for closing on to the central member, and bladeoperating mechanism in the valve body, characterized by a flexible or elastic sleeve 22 anchored to the valve body so that the closing blades of the iris diaphragm nip the sleeve against the central member, the sleeve then extending as a diaphragm across the flow passage at least at one face of the iris diaphragm to shield the latter and the bladeoperating mechanism. The blades are pivoted at one of their ends to a rotatable ring 11 and at their other ends to a part of the casing, the ring being rotated by a handle 17. The member 20 is supported by arms 19 and may be covered by a sleeve of resilient material such as natural or synthetic rubber. In operation, by rotation of the handle 17, the blades are forced towards the centre and so engage the sleeve 22 and nip it against the member 20, thereby completely closing the passage 12; the ring 11 may be maintained in various positions by a spring-loaded plunger 17. The sleeve may be a sheet of flexible material, such as nylon, so that in the open position it hangs down loosely or it may be of elastic material and extend tightly across the edges of the blades in their open position so that it is stretched when they are moved to the closed position.
Patent GB-420683-A (GB)
Title: Manufacture of oxazine dyestuffs
IPC: C09B19/02
Filed: 1933-06-06
Abstract: Oxazine dyes are made by heating at a temperature between about 150--300 DEG  C., a compound of the formula <FORM:0420683/IV/1> wherein X stands for hydrogen or halogen, and R an aromatic radical containing at least two benzene nuclei the one of which is bound to the NH- group and the other to the NH2- group of the molecule, in the presence of an acylating agent, advantageously in a high-boiling solvent with or without an oxidizing agent.  Suitable acylating agents are acetic anhydride, benzoyl chloride, benzotrichloride or p-toluenesulphochloride. The products may be used as pigments or sulphonated to give water-soluble dyes for vegetable fibres which also in the form of their barium or calcium salts, may be used as pigments.  The diaminoaryl-aminoquinones employed as starting materials are prepared by condensing one mol of a tetrahalogenbenzoquinone with two mols of an appropriate aromatic diamine, for example benzidine, m-nitrobenzidine, o-p<1>-diaminodiphenyl, 4 : 4<1>-diaminopdiphenylurea, 4<1> : 4<1>-diamino-diphenylsulphide, 4 : 4<1> - diaminodiphenyl methane, 4 : 4<1>-diaminodiphenylamine, 4 : 4<1>-diaminocarbazole naphthidine, and examples illustrate the treatment of some of these starting materials to give pigment dyes and the further sulphonation of some of the products to give water-soluble dyes.  Specifications 8886/12, 313,094, [both in Class 2 (iii)], and 387,565 are referred to.
Patent GB-545086-A (GB)
Title: Improvements in coupling means for connecting, to tractors, the shafts of vehicles which are normally horse-drawn
IPC: B60D1/14
Filed: 1940-11-08
Abstract: 545,086. Couplings for vehicles. SALOPIAN ENGINEERS, Ltd., and BATKIN, H. W. Nov. 8, 1940, No. 16236. [Class 103 (v)] An appliance F for connecting to tractors the shafts B of normally horse-drawn vehicles has the device D for connecting to the tractor vertically adjustable on the forward end c of the appliance F, a cross-pin of device D engaging in one of notches S of a bracket R on the end c. Cross bars G and E and chains M and N are provided to attach the appliance F to the shafts.
Patent GB-1466464-A (GB)
Title: Dialysis control system and method
IPC: A61M1/14
Filed: 1974-04-11
Abstract: 1466464 Treating blood SANDOZ Ltd 11 April 1974 [16 April 1973] 16351/74 Heading A5R A blood dialyser, intended for use with a single vein-puncture, has an arterial line 34 and a venous line 62, a blood pump 38, means 70, 150 for simultaneously closing the venous line and opening the arterial line until a predetermined pressure has been built up in the system and for subsequently opening the venous line and closing the arterial line for a predetermined time interval, there being means for adjusting the predetermined pressure and the time interval respectively, independence on the pump speed, to build up the predetermined pressure during closure of the venous line in a time greater than the predetermined time interval so that the duration of opening of the venous line is less than the duration of opening of the arterial line. A conduit 66 transmits pressure in a bubble trap 64 arranged in the venous line to a controller 70 which includes a pressure monitor and a time circuit. The pump 38 comprises a continuously rotating arm 42 supporting cylinders 48, 50 which alternately squeeze the arterial line 34 against a semicircular track 52 to provide a unidirectional pulsatile flow of blood towards the dialyser 60. With the arterial line open and the venous line closed by a detent 156 of a clamp 150 the pressure build-up in the venous line is sensed by the controller 70 and on reaching a predetermined value set by a marker 88 causes the detent 156 to change over to open the venous line and close the arterial line. Blood then flows under the built-up pressure through the venous line to the patient for a time determined by the time circuit which is set by a dial 86. Normally the arterial line is open for a longer period than the venous line. The arterial and venous lines are connected to a single cannula 24 by a bifurcated coupling 28.
Patent GB-384576-A (GB)
Title: Improvements in low shoes for footwear
IPC: A43B15/00
Filed: 1932-06-10
Abstract: 384,576. Boots &c. SCHNEIDER, E., 16, Rosenheimerstrasse, Bad Kreuznach, Germany. June 10, 1932, No. 16383. Convention date, March 8. [Class 17 (ii).] An "Opanke" or " Sahara " sandal has a folded strip 3, for example of leather, laid between the upper 2 and the sole 1, and the strip is fixed at the same time that the upper 2 is secured to the sole. The strip 3, which may be folded over the sole, may be given the form of a thonged joint by means of stampings, colour printing, or the like.
Patent GB-444779-A (GB)
Title: Process for the catalytic treatment of carbonaceous materials with hydrogenating gases
IPC: C10G47/06
Filed: 1935-06-06
Abstract: The catalytic treatment of carbonaceous materials in presence of hydrogenating gases, e.g. destructive hydrogenation, the hydrogenation purification of mineral oils, and the hydrogenation of unsaturated hydrocarbons, is carried out in presence of a catalyst comprising iron sulphide which has been produced prior to the reaction by treatment at elevated temperatures of iron sulphide with sulphur or volatile sulphur compounds under pressure.  Iron sulphide which has been produced by precipitation from an iron chloride solution with aqueous ammonium sulphide solution is packed in lump form into a reaction vessel and treated for 1--1,5 hours with hydrogen sulphide under a pressure of 3 atmos. and at 200 DEG  C. Hydrogen mixed with gas oil vapours is led at 200 atmos. and 470 DEG C., over the catalyst thus obtained and a product is obtained containing 37 per cent hydrocarbons boiling up to 180 DEG  C.  The product may be recycled.
Patent GB-586055-A (GB)
Title: Apparatus for playing a game
IPC: A63F1/02
Filed: 1945-08-24
Abstract: 586,055. Game apparatus, HOENIG, E. Aug. 24, 1945, No. 16450/44. [Class 132 (ii)] In game apparatus of the kind in which a flat playing area is provided with a number of recesses, to receive balls, each recess being marked with a value sign which may be a particular card of a conventional' pack of playing cards and the playing area having an upstanding rim 2, the playing area is divided into a number of sub-divisions 3 of substantially equal size and the whole area of each sub-division is shaped to form a dished depression, the ridges between the sub-divisions being sufficiently narrow to prevent a ball lodging thereon. Each sub-division may be provided with a central hole or semispherical recess 7. The apparatus may be provided with a cover and may include coin-freed mechanism.
Patent GB-1034996-A (GB)
Title: Improvements in or relating to electrical connectors and to methods of and apparatusfor making electrical connections
IPC: H01R43/027
Filed: 1965-04-20
Abstract: 1,034,996. Making electrical connections. AMP Inc. April 20, 1965 [April 23, 1964], No. 16465/65. Addition to 956,118. Heading B3A. [Also in Division H2] A terminal part 2 is secured to a panel board and serves as a receptacle for a tab 18 which is slid between the inwardly turned edges of side walls 8 and a web 6. An insulated conductor is trapped between the tab 18 and the web 6 and is dragged along with the tab, the ears 22 of which form a recess for the insulation of the conductor. The tool for carrying out this process has a channel-shaped mandrel (Fig. 3, not shown) along which the tab is pushed into the receptacle, engaging the conductor and severing the insulation thereof on its way. The slots allow for separate deflection of the side wall portions so that conductors of different diameters may be securely held.
Patent GB-1013515-A (GB)
Title: Starting aids for internal combustion engines
Inventor: CURZON THOMAS
IPC: F23Q7/00
Filed: 1963-04-26
Abstract: 1,013,515. Incandescent igniters. C.A.V. LIMITED. April 23, 1964 [April 26, 1963], No. 16471/63. Heading F1B. A glow plug for a diesel engine comprises a conductor wire 4 connected by a looped heater element 6 to the end of a metal body 1, the space between the conductor and body being filled by a sintered glass filling which seals the end part 3 of the body. The heater 6 may be an alloy consisting of 92% platinum and 8% tungsten.
Patent GB-910085-A (GB)
Title: Improvements in planographic printing plates
Inventor: HAYWARD DENIS EDWARD PETER
IPC: B41N1/14
Filed: 1960-05-10
Abstract: 910,085. Printing-surfaces. TIMEFAX CORPORATION. May 10, 1960, No. 16484/60. Class 100 (2). An electro-responsive planographic printing- surface comprises a layer of finely divided electrically conductive material and a binder, and a superposed layer including hydrolysed acrylonitrile polymer which has been rendered waterinsoluble by treatment with a heavy metal salt. The electrically conductive layer may comprise two strata one of which is of higher conductivity than the other. As shown, there is a base sheet 1 of bleached Kraft paper which has been sized with urea or melamine formaldehyde resins, an electrically conductive coating 2 which acts as a water barrier, an intermediate coating 3 which is electrically conducting, and a lithographic surface 6 containing a hydrolysed polyacrylonitrile polymer. In one example, the coating 2 comprises a vinyl chloride-vinyl acetate copolymer, acetylene black, and methyl ethyl ketone, and the coating 3 comprises polyvinyl acetate, polyvinyl alcohol, methanol, carbon, chlorinated diphenyl, and colloidal silica. The colloidal silica may be replaced by finely divided clay or diatomaceous earth. The coating 6 comprises hydrolysed polyacrylonitrile polymer, water, zinc oxide, and zinc sulphide: this coating is insolubilized by washing with a solution of heavy metal salt in water, salts such as those of iron, aluminium, calcium, cadmium, copper &c. being suitable. The metal salt could be incorporated in the coating 6 to eliminate the washing process, in which case the coating comprises hydroysed polyacrylonitrile, water, ammonia, ferric chloride, zinc oxide, and zinc sulphide.
Patent GB-594204-A (GB)
Title: Improved blade ring for radial flow elastic fluid turbines and method of manufacturing same
IPC: F01D5/04
Filed: 1945-06-28
Abstract: 594,204. Making turbines. SVENSKA TURBINFABRIKS AKTIEBOLAGET LJUNGSTROM. June 28, 1945, No. 16534. Convention date, July 5, 1944. [Class 83 (ii)] [Also in Group XXVI] In a blade ring for a radial flow elastic fluid turbine, one end at least of the blades is provided with outwardly projecting hook-shaped portions engaging correspondingly shaped grooves in the supporting rings and sealed in this engagement by means of locking rings bearing against the inside of the ends of the blades. One of the supporting rings 3, Fig. 1, is connected to a seating ring 4 by means of an expansion ring 5 and an auxiliary ring 6. The seating ring 4 is attached as by caulking to a turbine disc, not shown. Rings 5 and 6 may be formed integrally with one another. The blade 1 has dovetail ends 2, and is clamped between each supporting ring and a locking ring 9. The flange 10 of the latter is forced by rolling into engagement with the blade root. In a modified form, Fig. 4, the ring 9 is locked against axial displacement by means of a flange 11 engaging a corresponding slot of the supporting ring. The flanges 10 and 11 may be of conical form, Fig. 6, rolled into engagement with corresponding slots in the blade and supporting ring, and may be duplicated. In the form shown in Fig. 10, a metal ring 15 is used to force the blade root 2 against the hook 14 and the ring 9 against a conical surface 16. The ring 15 may be omitted ; there may be two hooks 14. In all cases the ring 9 may be divided by being slit at. one or more points, and may be inserted into the desired position and the slits subsequently filled by caulking or by welding. If the ring 9 is divided, an undivided ring having a conical outer surface engaging with a corresponding conical inner surface of the ring 9 may be driven axially into it to force it outwards. Groups of blades may have their roots turned to the desired profile, and while still clamped in a suitable fixing device may be moved to the supporting rings without changing their relative positions. The supporting rings may be shrunk on to the blades. The blades may be provided with distance pieces or may be welded to shroud rings which are afterwards turned to the desired profile.
Patent GB-529687-A (GB)
Title: Two-stage, two-stroke internal combustion engines
IPC: F02B75/02
Filed: 1939-06-06
Abstract: 529,687. Compound engines. HEYLANDT, C. W. P. June 6, 1939, No. 16597. Convention date, July 12, 1938. [Class 7 (ii)] A two-stage, two-stroke engine comprises one or more groups of three combustion and first stage expansion cylinders A<1>, B<1>, C<1>, a second stage expansion cylinder A<11>, B<11>, C<11>, associated with each of the first stage cylinders, and a crankshaft Z and connecting rods interconnecting the pistons of the cylinders, the cranks a<1>, b<1>, c<1> of the pistons of the first stage cylinders being mutually displaced angularly by 120 degrees, the cranks a<11>, b<11>, c<11> of the pistons of the second-stage cylinders being similarly displaced, and the crank of the piston in each first-stage cylinder leading the crank of its associated second-stage cylinder by 120 degrees, this being the angle for example between the cranks a', a<11>. As shown, the cylinders are in line and a single, six-throw crankshaft is used but in a modification the second-stage cylinders are set in a line parallel to the first-stage cylinders, the two crankshafts turning in opposite directions.
Patent GB-1034498-A (GB)
Title: A process for preparing inosine and derivatives thereof
IPC: C07H19/16
Filed: 1965-04-20
Abstract: The invention comprises a method for preparing compounds of the formula:  <FORM:1034498/C2/1> wherein R1 and R2 are each hydrogen or are combined as an isopropylidene group and R3 is a hydrogen atom or methyl group, by reacting a compound of the formula: <FORM:1034498/C2/2> wherein R1 and R2 have the above significance, with an alkyl orthoformate or orthoacetate in a solvent for the reactants in the presence of an acid, a Lewis acid, a phosphorus halide or a dehydrating agent such as a carboxylic anhydride, phosphorus pentoxide or a molecular sieve.
Patent GB-1245341-A (GB)
Title: Direct current to direct current converter
IPC: H02M3/315
Filed: 1969-03-31
Abstract: 1,245,341. D.C. to D.C. converters. DORNIER SYSTEM G.m.b.H. 31 March, 1969 [22 Oct., 1968], No. 16722/69. Heading H2F. In a D.C. to D.C. converter switching devices S1, S2 sequentially reverse the direction of current, from a D.C. input circuit U, in the primary windings W1 on the transformer Tr, the resulting voltage in secondary windings W2 being rectified at G and supplied to output terminals a, b. The output voltage is made variable by controlling the conducting period of a pair of thyristors V1, V2 relative to those of devices S1, S2. Devices S1 S2 may be triggered by an astable multivibrator T, thyristors V1, V2 being also triggered by the multivibrator after an adjustable delay T2. Alternatively, the delay T2 may be fixed and the output voltage changed by varying the frequency of the multivibrator T. In Fig. 3 (not shown) output terminal b is connected to a centre-tap on the secondary winding, the thyristors V1, V2 being connected between opposite ends of said winding and output terminal a, whilst the bridge rectifier G is replaced by a pair of diodes respectively connected between intermediate tappings on the secondary winding and output terminal a.
Patent GB-171726-A (GB)
Title: Improvements in and connected with the waterproofing of fabric
IPC: D06B1/02
Filed: 1920-06-21
Abstract: 171,726. Mitchell, W. A. June 21, 1920. Proofing.-Made-up fabric articles in the form of sheets and strips, such as tarpaulins and wagon covers, are waterproofed by spraying waterproofing-solution on to a surface of the suspended article with such velocity as will cause all cells and interstices of the fabric to be entered thereby, the occluded air being free to escape before the bombardment of the sprayed particles and the excess waterproofing-solution arising from the forcible spraying being free to run down the sheet, which is preferably dried before spraying. As shown, a sheet n of fabric is suspended, so as to present a fairly taut surface, by hooks o and rings p from parallel rods r, and is sprayed by a device c supplied with waterproofing-solution from a pressure tank a and with compressed air or steam from a pipe f. Compressed air is delivered to the tank by a pipe e, a second pipe y passing compressed air below the surface of the solution to agitate it when required. A guard q supported en wheels s is arranged behind the sheet n to intercept solution not retained by the fabric. A trough t is provided to catch drippings from the sheet and from the guard q. When the article has been sprayed, the guard is moved aside and the article is moved into a drying-chamber u heated by steam pipes x and provided with air-inlet holes y and exhaust connections z to a fan 1. Alter being dried, the article is moved along the rods r into the position 3 to harden off.
Patent GB-957930-A (GB)
Title: Improvements relating to indexing devices for machine tools
Inventor: JENNINGS RICHARD ARTHUR
IPC: B23Q16/06
Filed: 1962-05-02
Abstract: 957,930. Indexing devices. JOHN ACKWORTHIE Ltd. April 30, 1963 [May 2, 1962], No. 16791/62. Heading B3B. An indexing device comprises a housing 2, a work table 1 rotatable in bearings 4 of the housing, a shaft 6 driven by a motor 7 through a worm 23, and a clutch 27, 28, a drive pin 16 on shaft 6 for engagement with a Geneva wheel 14 seoured to table 1, a releasable plunger 8 for engagement with bushes 9 in the table at the indexed positions, and means for retracting plunger 8 during indexing. A cam surface 17a carried by shaft 6 engages a follower 19 carried by plunger 8, and retracts the plunger against a spring 11 to allow indexing. The axial position of member 28 is controlled by a pivoted lever 35 actuated from outside the housing by a spring loaded push button 36, and for automatic operation the push button is connected to an electromagnetic, pneumatic, or mechanical means associated with the machine tool being used. To ensure that shaft 6 is brought quickly to rest and held during indexing, a spring loaded plunger 42 engages a recess 44 formed in a boss 45 of shaft 6. Lubricant is supplied by a pump 7, the plunger 48 of which is coupled to plunger 8 through a member 49 so that the plunger 48 is actuated during reciprocatory movement of plunger 8.