baber/WOPTO huggingface dataset:
Patent GB-272943-A (GB)
Title: Improved process for purifying sugar solution
IPC: C13B20/18
Filed: 1927-06-16
Abstract: 272,943. Elektro-Osmose Akt.-Ges., Graf Schwerin Ges. June 16, 1926, [Convention date]. Sugar solutions, purifying; electric endosmose; diaphragms.-The solution is passed through the middle compartment of a three-compartment cell, the anode compartment being traversed by water which has become alkaline by previous circulation through the cathode compartment. In this way an alkaline reaction is maintained in the middle compartment end inversion of the sugar thereby prevented. The anode and cathode diaphragms may both be of an " electronegative " material, i.e. one which permits the passage of positive ions only. When the solution is passed through a succession of cells, the anode diaphragms of the. last cells are of " electropositive " material, e.g. a protein and the cathode diaphragms of " electronegative " material, e.g. cellulose.
Patent GB-919401-A (GB)
Title: Process of concentration of solutes
IPC: B01D11/04
Filed: 1960-05-06
Abstract: A solution can be separated into two phases; one of high concentration and the other of low concentration, by adding a second solute so as to form a solution containing the original solute and a low concentration of second solute.  By contracting this solution with a recycled highly concentrated solution of the second solute first solute is transferred therefrom.  A portion of this solution is treated for recovery by the usual means while second solute is added to the second portion and the recycling procedure is repeated.  A portion of the third solution is treated to remove second solute.  An aqueous solution of sodium chloride is treated with phenol in the example.  U.S.A. Specification 2,772,953 is referred to.
Patent GB-330127-A (GB)
Title: Improvements in taps for use on hot water heaters of the pressure type
IPC: F24H9/20
Filed: 1929-05-27
Abstract: 330,127. Croad, A. K., (Naamlooze Vennootschap Fabriek van Instrumenten en Electrische Apparaten Inventum). May 27, 1929. Rotary cylindrical valves.-In a hot and cold water tap for use in water heaters of the pressure type, the casing 1 is provided with three connections 4, 5, 8, one outlet 12 and a spigot valve 17 for controlling the direction of flow of water from the inlet connection 8. The valve casing 1 is provided with bores 10, 12, 13, 14, the last named bore 14 connecting the bores 10 and 12 and the bore 10 carryng the spigot valve 17 the spindle 11 of which is provided with a handle 15 and pointer 16. The cold water inlet 8 is connected to the bore 10 by means of a union 7, the pipe 5 connects the bore 13 by means of a union 3 to the inlet of the heater 6, and the pipe 4 from the heater outlet is connected, by means of the union 2, to the bore 12 which forms the main outlet from the tap. Cold water entering through the pipe 8 may be directed through the bores 10, 14 to the outlet 12 or through the bores 10, 13 through the heater to the outlet 12, or in both directions simultaneously, so as to provide cold, hot, or tepid water.
Patent GB-900660-A (GB)
Title: Improvements in power chain saws
Inventor: SAWTELL ROGER DEWICK
IPC: B27B33/14
Filed: 1960-05-09
Abstract: 900,660. Chain saws. SPEAR & JACKSON Ltd. May 2, 1961 [May 9, 1960], No. 16384/60. Class 145. The cutting links 14 of a chain saw have integral solid teeth 15 of solid frusto-conical shape with their axes lying substantially in the plane of the links and opposite-handed cutting edges 16 of rounded gouge-like form are formed by a hollowed-out or concave face receding obliquely inwards at the front of the teeth. Depth gauges 17 are provided at the front of the cutting links.
Patent GB-1490123-A (GB)
Title: 3-alkanoyloxyquinuclidines
IPC: C12P17/18
Filed: 1975-04-21
Abstract: 1490123 Quinuclidine derivatives RAMOT UNIVERSITY AUTHORITY FOR APPLIED RESEARCH & INDUSTRIAL DEVELOPMENT Ltd 21 April 1975 [24 April 1974] 16408/75 Heading C2C Novel compounds of Formula I in which R is C 1-3  alkyl in the form of their (+) isomers, are prepared by esterifying racemic quinuclidin-3-ol to obtain a compound I in racemic form, subjecting this to enzymatic hydrolysis with an appropriate cholinesterase whereby the (-) isomer of Formula I is selectively hydrolysed and isolating the unchanged (+) isomer of Formula I from the hydrolysed (-) isomer, e.g. by chromatography. (+)-3- Acetoxy - quinuclidine (I, R=CH 3 ) may also be obtained by hydrolysing compounds I in which R is Et or Pr to (+)-quinuclidin-3-ol and acetylating this to give the desired (+)-3- acetoxy-quinuclidine which may optionally be converted to an acid addition or quaternary ammonium salt. Ophthalmic compositions useful in the treatment of glaucoma comprise (+)-3-acetoxyquinuclidine, or a physiologically acceptable acid addition or quaternary ammonium salt thereof, together with an ophthalmic carrier.
Patent GB-515391-A (GB)
Title: Improvements in or relating to the manufacture of finned tubes for heat exchangers
IPC: B21C37/24
Filed: 1938-06-01
Abstract: 515,391. Making gilled tubes. MAIN WATER HEATERS, Ltd., (formerly OMNIA MANUFACTURING CO., Ltd.), and CHAPMAN, F. W. June 1, 1938, No. 16438. [Classes 83 (ii) and 83 (iv)] Soldering.-In a method of making a gilled tube, gills 10 formed with flanges 11 are arranged in spaced relation along the tube, a stick of solder 15 is placed through a series of aligned holes 14 in the fins, or alternatively rings of solder are placed between the fins and the assemblage is then heated to melt the solder which is drawn by capillary attraction between the flanges 11 and the tube.
Patent GB-561070-A (GB)
Title: An improved building brick
IPC: E04B2/12
Filed: 1942-11-23
Abstract: 561,070. Bricks. GRICE, W. S. Nov. 23, 1942, No. 16551. [Class 87 (i)] A wall, pier, or other brickwork structure is constructed from bricks 1 having parallel upper and lower faces similarly shaped as truncated rightangled troughs with the apex end parallel to the base and the four side faces at right angles to the upper and lower faces, the angularity being about 75‹. Specifications 477,445, 503,785 and 516,261 are referred to.
Patent GB-1023604-A (GB)
Title: Developer system for electrostatographic machines
IPC: G03G15/08
Filed: 1964-04-21
Abstract: 1,023,604. Electrophotographic apparatus. AMERICAN PHOTOCOPY EQUIPMENT CO. April 21, 1964 [May 6, 1963], No. 16558/64. Heading G2H. In an electrostatic photocopying machine 10 in which a copy sheet is charged and exposed fresh developer powder comprising a magnetic carrier and toner particles, is fed by conveyer 111 from a magazine 110 at a controlled rate to bin 43 in the developer unit 30, and used powder is discharged from the bin at the same rate by device 112. Unit 30 is described in Specification 1,023,603 and has a rotating cylinder 60 of magnetic material to apply toner powder to the exposed copy sheet, a magnetic field being established normal to the cylinder by an adjacent pole piece 80 (to produce a "brush" effect). The toner consists of pigment particles adhering to magnetic carrier particles by triboelectric charging, the carrier particles remaining in bin 43 after the toner is deposited on the copy sheet. Contra-rotating augers 91,92 mix and circulate the developer powder and are motor-driven. Conveyer 111 consists of an augers 121 is geared to a toothed agitator wheel 124 carrying a paddle 126. Device 112 consists of another auger 131 rotating in tube 132 opening from bin 43, augers 121, 131 baths being driven by motor 127 in unison. The spent developer passes through chute 135 to receptacle 140 removably carried in tray 141. When receptacle 140 is full, its weight moves it downwards against the bias of spring 151 and switch 152 is actuated to provide an audible or visible warning. The developer may be packaged in containers such as receptacle 140. The rate of which developer is replenished is decided by the rate of copying, and motor 127 is controlled for this purpose by switch 195 through a cam 196 whose shaft 198 is driven by timing motor 201 running at 1 r.p.m. Motor 201 is controlled by switch 202 that senses the length of sheets entering the machine. The setting of cam 196 determines the duration of running of motor 127. As an alternative signalling system, a timer motor 205 may be used to operate light 208 through cam 206 and switch 207. The original and copy sheets 16, 17 are fed into slots 14, 15 face to face to charging unit 18 after which original 16 goes to illuminating station 21 and copy 17 goes to exposing station 22, light from source 23 being reflected by mirror and lens system 24 to the moving sheet 17. The original then returns to discharge chute 25 while copy 17 moves to developing unit 30 and then to a fixing unit as described in Specification 1,023,602.
Patent GB-594217-A (GB)
Title: Production of coloured filaments, films and other articles from organic filament-forming materials
IPC: D01F1/10
Filed: 1945-06-29
Abstract: A process for the production of coloured filaments, films and other articles from organic filament-forming materials comprises the incorporation of a pigment in a linear polyester or polyester-amide with an organic filament-forming material dissolved in an organic liquid which is a solvent for the linear polyester or polyester-amide and the organic filament-forming material.  The mass so produced is formed into shaped articles by conventional methods.  The linear polyesters that may be used include those made from equimolecular proportions of dibasic organic acids and glycols, e.g. adipic acid and ethylene glycol, and also similar materials modified with a diisocyanate provided that they retain their fusibility after modification.  Pigments such as titanium oxide, carbon blacks, copper phthalocyanines, cadmium yellows, lead chromates, iron oxides, chromium oxides and ultramarine blues and extenders such as blanc fixe, lithopone and zinc oxide may also be used.  Organic filament-forming materials include such as alcohol soluble modified nylons, polyacrylonitrile and cellulose esters (particularly cellulose acetate).  In an example, 1 part by weight of a low molecular weight linear polyester-amide is mixed with an equal weight of Monastrol Fast Blue B (a copper phthalocyanine pigment) in an internal mixer. (The low molecular weight polyester-amide is made by treating adipic acid, ethylene glycol and monethanolamine in the approximate proportions 10, 3 and 1 by weight at 190 DEG  C. in an atmosphere of carbon dioxide.  The mixture is then subjected to continuous azeotropic distillation with xylene for 22 hours at 180-190 DEG  C. and the xylene then distilled off.  The product is a pale yellow syrup, hardening to a soft cream-coloured wax.) 1 part of the paste prepared in the mixer is stirred at 50 DEG  C. with a solution of 10 parts polyacrylonitrile in 90 parts dimethylformamide. The resultant blue solution is used for spinning filaments, casting films or shaping coloured articles by any conventional method. Specifications 553,773, 561,104, 561,108 and 573,482 are referred to.
Patent GB-1088981-A (GB)
Title: Herbicidal compositions
Inventor: CROWDY STEPHEN HENRY
IPC: C07D213/22
Filed: 1963-04-29
Abstract: A concentrated herbicidal composition comprises from 10 to 80% of a mixture of a 4,4\sv-bipyridylium salt and a solid regulator which is an organic substance containing N=C or N-C=(O or S), the regulator having an average particle size not exceeding 50 microns, and said mixture being dispersed in water containing a cationic or non-ionic surface active agent.  The regulator is effective in maintaining homogeneity and herbicidal activity. Many regulators are listed, e.g. various amides, carbamates, ureas, diazines, triazines, semicarbazides, thiocyanates &c. Corrosion inhibitors such as sodium nitrite, sodium molybdate and sodium metaborate also may be present.
Patent GB-1217584-A (GB)
Title: New phthalocyanine dyestuffs containing silyl groups, and their production and use
IPC: C09B69/00
Filed: 1968-04-08
Abstract: 1,217,584. Coating. J.R. GEIGY A.G. 8 April, 1968 [7 April, 1967], No. 16790/68. Heading B2E. [Also in Division C3] In Example 56 a laquer containing 30g coconut oil fatty acid modified alkyd resin having 32% fatty acid content, 15g melamine formaldehyde resin dissolved in 15g butanol, 40ml xylene mixture, 9.6g ethylene glycol monoethyl ether and 0.4g 4, 4', 4", 4"'-tetra- (trimethyl silyl)-nickel (or copper) phthalocyanine is applied to aluminium foil in a film thickness of 100Á and after evaporation of the solvent is stored for 30 minutes at 130‹C. Greenish blue shades are obtained.
Patent GB-515584-A (GB)
Title: Improvements in or relating to radio receivers
IPC: H03J3/14
Filed: 1938-06-07
Abstract: 515,584. Wireless receiving circuits. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. June 7, 1938, No. 16896. Convention date, June 4, 1937. [Class 40 (v)] A tuning indicator is operated by a voltage obtained partly from a delayed A.V.C. rectifier and partly from the signal demodulator, the former providing volume control voltages for stages preceding and following the. point from which it is fed. As shown an I.F. transformer B1 feeds an I.F. amplifier Z2 and an A.V.C. diode 1 which is biased by a delay voltage provided by the cathode resistance K of a tuning indicator M. Its load resistance R1, R2 feeds A.V.C. voltages to the following stage Z2 and other preceding stages. The valve Z2 feeds the signal demodulator diode 2, having a load resistance R3, through transformer B2. The voltage for operating the tuning indicator M is derived from a resistance 3 connected in series with resistance 5 across the resistance R3 and in series with resistance 4 across the resistances R1, R2.
Patent GB-583017-A (GB)
Title: Safety device for twin rotor helicopters
IPC: B64C27/00
Filed: 1945-07-03
Abstract: 583,017. Helicopters. ROTARY RESEARCH CORPORATION. July 3, 1945, No. 16914. Convention date, Feb. 28, 1945. [Class 4] Twin rotor helicopters are provided with means for automatically shutting off the engine power in case of the failure of transmission of power to either of the rotors so that each rotor becomes free to auto-rotate. In the construction shown in plan, Fig.- 1, the vertical shafts of twin rotors are driven by bevel gears 19, 20 from a transverse shafting 18 driven by engine 14 whose magneto 39 is short-circuited to cut off power when failure occurs on one side of the shafting. Contact rings, on each of the rotor shafts, having a short conducting and a long insulating part form part of the circuit of a battery 35 and magnetic relay 36 ; in the normal driving relation shown in the Figure, the circuit cannot be completed through the brushes and the revolving rings, but if one of the rotors ceases to be driven it slows down With respect to the other and the circuit becomes closed when each pair of brushes is in contact with the conducting portion of its corresponding ring. The relay 36 then attracts an armature carrying a contact 38 to shortcircuit magneto 39. In modifications connected cam-rings operate plungers serving to close switches for short-circuiting magnetos or to allow pressure liquid to flow in hydraulic circuit-controlling means. Alternatively, the engine throttle may be controlled. Plungers may also be controlled to allow release of spring- actuated means for acting upon the magneto or engine-throttle.
Patent GB-584756-A (GB)
Title: Improvements relating to seats and chairs
IPC: A47C4/30
Filed: 1944-09-05
Abstract: 584,756. Adjustable supports for seats. CHAPMAN, A. W., and CHAPMAN, Ltd., A. W. Sept. 5, 1944, No. 16968. Addition to 562,585. [Class 52 (ii)] A thigh, back or head support as described in the parent Specification is modified to comprise an arched top, a rounded front edge 1, side walls 4 provided with elongated slots 7, and tension adjusting means for the canvas which reacts between the supporting rod 8, or pivots on which the thigh support is pivoted, and the thigh support itself. The adjusting means as shown in Fig. 1 comprises two screw threaded members 11 pivotally mounted on the supporting rod 8 and adapted to extend through holes in the lugs 13 fixed to the side walls 4 to co-operate with adjustable nuts 14. Alternatively a single tension adjusting member disposed midway between the side walls may be used or two screw threaded members may be secured to the thigh support and adapted to extend through holes in the supporting rod 8 to co-operate with the adjustable nuts 14. In a modification the supporting rod 8 is replaced by inwardly bent ends 16, Fig. 3, of two adjustable screws 15. A further modification comprises two tension adjusting cams 22, Fig. 4, pivotally mounted on the side walls and integral with adjusting levers 27. The cams are adapted to be locked in position by locking nuts 28.
Patent GB-597180-A (GB)
Title: An improvement in or relating to wire-drawing machines
IPC: B21C1/08
Filed: 1945-07-04
Abstract: 597,180. Drawing wire. BARRON, C. A., and BARRON, H. D. July 4, 1945, No. 17013. [Class 83 (iv)] A wire drawing- machine is divided into a number of separate drawing sections each having at its finishing end a stationary block about which the last drawing-die of the section is traversed in a rotary path. The wire d is led into a casing a and on to drawing-drums b, c between which the dies are carried on brackets e. From the top drum c the wire passes to a unit comprising a pulley f and die g which move in a circular path around a drum h on to which the wire is wound. The wire then passes through a guide eye or a pulley on a rotatable arm i whose boss is pressed against the end face of the stationary drum h by a spring j, and finally led over guide pulleys k, m and n to the winding-drums of the next section. Specification474,445 is referred to.
Patent GB-1216909-A (GB)
Title: Improvements in or relating to cases
Inventor: CHILDS MARK GLENDOWER HYDE
IPC: B65D19/20
Filed: 1969-03-17
Abstract: 1,216,909. Load handling pallets; cartons. UNILEVER Ltd. 17 March, 1969 [9 April, 1968], No. 17070/68. Headings B8H and B8P. A box pallet of solid or corregated fibreboard comprises side walls 1-4 and a base 5 formed of overlying flaps, a platform 12 spaced from the base 5 by a plurality of supporting elements 6, 6a providing passageways 13 for the forks of a fork lift truck and apertures 14 in the opposed side walls 2, 4 in alignment with said passageways. The supporting elements comprise fibreboard sheet material folded along parallel lines to form a pair of rectangular cross-section hollow tubes with double side walls 7, 8, a double intermediate wall 9, a double base wall 10 and an upper wall 11. In those supporting elements not required to receive the forks of a fork lift truck the internal edge of the sheet may be folded to form a diagonal (19), Fig. 4 (not shown). In an alternative embodiment, Fig. 5 (not shown), the supporting element comprises a number of dividers (20), (21) slotted together at their intersections. The passageways for the forks are defined between adjacent parallel dividers (20) or (21) and the dividers extending transverse of said passageways are adapted to be broken down by the entry of the forks. In a further embodiment, Fig. 6 (not shown), a combination of tubes (35), (35a) and dividers (36) are used with the passageways (13) formed in the tubes. In a still further embodiment, Fig. 7, 8 (not shown), the supporting elements comprise spaced blocks (37), (38) of wood or plastics material. A liner 18, Fig. 3 (not shown), or a sleeve (15), Fig. 2 (not shown), having flaps (16) to close the box, may be provided to reinforce the box.
Patent GB-335958-A (GB)
Title: Improvements in or relating to television
IPC: H01J31/26
Filed: 1929-06-04
Abstract: 335,958. Henroteau, F. C. P. June 4, 1929. Vacuum tubes.-A photoelectric cell for television comprises an evacuated vessel 1, Fig. 1, a cathode 4, an anode 7 and a window 1<a>. The cathode consists of an earthed aluminium plate 2<a>, a layer 3 of insulating material such as aluminium oxide and a surface 4 of potassium hydride containing small globules of pure potassium or other photoelectric material. A grid 5 may be kept charged by a battery 6 and an anode 7 is connected to an amplifying system. The inner surface of the vessel 1 is partly coated with a layer 21 of potassium. An alternative form of cathode, Fig. 7, consists of a glass plate 100 having a number of cups filled with a, liquid alloy such as potassium and sodium. The grid 102 rests on the glass surface and is capable of various connections. The anode 103 and the photoelectric layer 108 are arranged as in Fig. 1. The surface 4 in Fig. 1 may be prepared as described in Specification 255,057 or by bombarding a thin layer of potassium, sodium, caesium or rubidium hydride with cathode rays which transform elementary areas into groups of fine globules of metal. Specification 335,995 is referred to.
Patent GB-981957-A (GB)
Title: Improvements in or relating to the production of sheathed articles
Inventor: GRANT ALBERT EDGAR
IPC: G21C21/16
Filed: 1962-05-04
Abstract: 981,957. Casting composite articles. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. April 30, 1963 [May 4, 1962], No. 17159/62. Heading B3F. [Also in Division G6] A sheathed article is produced by passing a molten material into a sheath of a material of considerably lower melting point than the first material, and effecting control of the temperature of the sheath by heat exchange means during solidification. As applied to the manufacture of a nuclear fuel element, uranium is cast into a magnesium alloy sheath under vacuum. The sheathing may have internal circumferential or helical recesses so that the uranium is keyed thereto, and have preformed heat transfer surfaces; alternatively said surfaces may be formed by subsequent working. The interior of the sheath may be inhibited to prevent alloying of the uranium and sheath or alloying may be encouraged by providing a bonding material, e.g. A1, Si, on the wall of the sheath. The ends of the sheath are completed by fitting an insulation disc of sintered magnesium oxide followed by edge welding an end cap into position. A suitable amount of helium is introduced into the sheath so that subsequent leak testing may be effected with a mass spectrometer. Good contact between the uranium and sheath, despite shrinkage of the uranium during cooling may be ensured by pressurization of the sheath by known gaseous or hydraulic means. A number of sheaths may be supported for top pouring in a structure with parallel passages for liquid or gaseous coolants, and at a suitable temperature the coolant may be replaced by a heating fluid, with or without additional heating, to effect annealing &c. In a modification the sheaths are supported in a solid or liquid refrigerantfilled container. Alternatively the sheaths are bottom poured by supporting them in a vessel into which the uranium is poured. The elements may be made from ceramic fuel material, e.g. uranium dioxide or carbide, and sheaths of metal, e.g. stainless steel, or ceramic material, e.g. beryllia for uranium dioxide or silicon carbide for uranium carbide. Specifications 790,389, 806,971, 812,123, 863,492, 921,484, 935,510, 974,887 and 981,956 are referred to.
Patent GB-1424436-A (GB)
Title: Energy absorbing block
IPC: F16F7/00
Filed: 1973-04-11
Abstract: 1424436 Releasable fastenings McCORD CORP 11 April 1973 [19 April 1972 29 March 1973] 17295/73 Heading E2A [Also in Division F2] A pin 46 is used in a shock absorber 10 to fasten a cylinder 20 into a two piece housing 36 against a pre-load force provided by a resilient block 30 operating between the cylinder 20 and a piston 12 resting against stops 42 in the housing 36. The pin 46 cooperates with a sloping wall 26 to allow inward movement of the cylinder 20; when no external force is present, the pin 46 rests against a projection 28.