baber/WOPTO huggingface dataset:
Patent GB-119671-A (GB)
Title: Improvements in Differential Mechanism.
Inventor: ELBERTZ FRANK VON
IPC: F16H48/10
Filed: 1917-09-06
Abstract: 119,671. Elbertz, F. von. Sept. 6, 1917. Differential or balance gearing.-A casing 3, 4 rotated by a bevel-gear 6 has internal teeth 19 arranged to drive a ring 16, which is adapted to rotate in a recess 15 formed eccentrically in a port 8, 9 fixed to a shaft 1. The ring 16 is formed with internal teeth 17 gearing with a pinion 13 fixed to a shaft 2 co-axial with the shaft 1.
Patent GB-726461-A (GB)
Title: Improvement in lubrication system for sewing machines
IPC: D05B71/00
Filed: 1953-05-08
Abstract: 726,461. Filters. UNION SPECIAL MACHINE CO. May 8, 1953 [May 10, 1952], No. 12843/53. Class 46. [Also in Group XXXIV] A sewing machine has an oil-collecting sump from which oil is returned to a reservoir after passage through filtering means.- Oil from the sump passes through a filter screen 62 and a filter medium 65 such as felt or spun fibre, into a receptacle 54 containing a filter bag 55. The receptacle has a collar 90 secured by bayonet-joint connections to a cup 56 formed with a conical seat 70 to receive the upper end of a plug 76 on which the filter bag is secured by a spring 86. The bag is maintained extended by a wire spring expander 82 having a loop at its lower end and a pair of branches resting at their upper ends against a. pipe 80. Filtered oil is drawn up the pipe 80 and through. a passageway 74 by a rotary pump.
Patent GB-460942-A (GB)
Title: A new or improved cleaning composition
IPC: C11D9/18
Filed: 1936-05-07
Abstract: A cleansing-composition in paste, powder, or liquid form consists of soap, dilute acetic acid, and one or more abrasives, e.g. ground whiting, chalk, powdered pumice or bathbrick, with or without water. A block form may be prepared by the addition of Portland cement or other setting or hardening agent.  The soap may be used in the form of powder, flakes, block, liquid, or soft soap.  In one example the product consists of soap flakes \ba1/2\be lb., vinegar \ba1/2\be gill, whiting 1 lb., and powdered pumice, \ba1/2\be lb.; in another example the quantities are 1 lb., \ba1/2\be pint, \ba1/2\be lb., and 1\ba1/2\be lbs. respectively.
Patent GB-1535369-A (GB)
Title: Function generator
IPC: G06G7/28
Filed: 1976-03-31
Abstract: 1535369 Piecewise-approximation function generator ASEA AB 31 March 1976 [1 April 1975] 12914/76 Heading G4G A diode function generator of the kind using piecewise linear synthesis comprises a number of "ideal diode" circuits D1, D2, &c. which, by means of switches 10, can be connected to either the input or output impedance of amplifier A1. In each of the diode circuits D1, D2, &c., R8= R10 and V1 is the same as V2 whereby the currents through V1, R8 and V2, R10 are equal. Each diode conducts as soon as a positive voltage is applied to a respective input 7. The break-points of the synthesized function are determined by the settings of potentiometers R11 and the slopes of the segments by the settings of R7. The slope of the function may be changed either positively or negatively in passing through a break point, depending upon whether the relevant switch 10 makes connection to terminal 13 or terminal 12.
Patent GB-1056573-A (GB)
Title: Pickup storage tubes
Inventor: NAKAYAMA YOSHIAKI
IPC: H01J29/39
Filed: 1964-03-26
Abstract: 1,056,573. Pick-up storage tubes. TOKYO SHIBAURA ELECTRIC CO. Ltd. March 26, 1964, No. 13053/64. Heading H1D. A pick-up storage tube comprises a photocathode deposited on the inside of the tube faceplate, a storage target positioned opposite to and spaced apart from the photocathode, the target comprising a storage mesh and an insulator coating the photo-cathode side of the mesh without stopping up the mesh holes, the insulator emitting secondary electrons upon being struck by photo-electrons to cause the storage of a charge image on the surface of the insulator, a collector mesh electrode disposed close to the photo-cathode side of the storage target parallel thereto to collect the secondary electrons emitted from the storage target, an electron gun provided at one end of the envelope opposite to the photo-cathode for emitting a reading electron beam that scans the target, a secondary electron multiplier disposed close to the electron gun and adapted to collect and multiply electrons repelled from the target by the beam scanning and render the electrons into a signal electric current, the optical image thus being stored as a charged image in the storage target whereby the stored image can be repeatedly read out by converting the signal electric current into the output current. An intensifying target may be provided between the photo-cathode and the collector mesh electrode consisting of a transparent plate, a fluorescent membrane coated on the photocathode side of the plate and a second photocathode provided on the collector mesh electrode side of the plate. The fluorescent membrane is sensitive to X-rays. The collector mesh electrode has 750-1000 meshes/inch and is made of metals such as copper and nickel, the insulating material is CaH 2 , MgF 2  or SiO 2 , and a conductive layer of gold, silver or aluminium is thinly evaporated on the side of the mesh electrode opposite to the insulating layer.
Patent GB-443402-A (GB)
Title: Stopper for bottles or other receptacles arranged in a special manner to serve as an electric lamp support
IPC: F21V19/00
Filed: 1935-05-02
Abstract: 443,402. Two-part couplings. PIERRE, R., Place Octogone, Chambery, Savoie, France. May 2, 1935, No. 13109. Convention date, May 31, 1934. [Class 38 (i)] [See also Group XVII] A stopper for a bottle &c. comprises a plug a of cork &c. on which a cap b is mounted having a screw-threaded extension adapted to receive the tapped end of an electric lamp socket d. A lateral orifice g is provided for an electric lead e.
Patent GB-878002-A (GB)
Title: Improvements relating to automatic slack adjusting mechanisms
Inventor: MARSH GERALD CRANTON
IPC: B61H15/00
Filed: 1960-04-13
Abstract: 878,002. Ratchet gearing. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. April 13, 1960, No. 13142/60. Addition to 778,177. Class 80 (3). [Also in Group XXXIV] In an improvement in or modification of the automatic slack adjusting mechanism claimed in the parent Specification, the fixed pawl preventing rotation of the ratchet wheel in one direction is replaced by a friction device 20, 26 acting to restrain the ratchet wheel 19 against rotation as the operating pawl 24 is turned between tooth-engaging positions. On movement of the rod 11 towards the right from the release position shown in Fig. 1 by the admission of compressed air to a brake cylinder (not shown) the main operating lever 12 is rocked anti-clockwise about its fixed pivot 13 and through the end block of the slack adjusting mechanism, the  sleeve assembly 17 and the nut rotatably fixed therein moves the screw-threaded output shaft 14 longitudinally towards the left against the action of a return spring (not shown). At the same time, the free end of an operating arm 29, rigidly secured to one end of the operating lever 12, sweeps downwards through a shallow arc transversely of the axis of the mechanism and, on account of the engagement of the roller 31 in the slot 13 of this arm the pawl carrier 22 is rotated together with the operating pawl 24 which accordingly rides up the ramp face of the adjacent tooth of the ratchet wheel 19, the latter being restrained against rotation at this time by the friction device composed of the rotary notched member 20 and the spring-loaded plunger 26 engaging resiliently in the notches (Fig. 3). Should there be less than a predetermined amount of wear in the brake blocks which are moved by the output shaft 14, the operating pawl 24 will not be rotated far enough to pass over the apex of the tooth, so that upon releasing the brakes the operating pawl will slip back along the same ramp face to the original position and no relative rotation occurs between the output shaft and the sleeve assembly of the slack adjusting mechanism. If, however, there is more than this predetermined amount of wear and the operating pawl consequently passes over the apex of the adjacent ratchet tooth, when the brakes are released the ratchet wheel 19 is rotated clockwise (Fig. 2), the friction device 20, 26 yielding to such positive action. The plunger 26 is displaced by two notches for each tooth of the ratchet wheel since the number of notches in the rotary member 20 is twice the number of ratchet teeth; the rotation of the ratchet wheel rotating the sleeve assembly and hence the nut so that in the result slack is taken up during the release stroke.
Patent GB-1349376-A (GB)
Title: Read-only memory device
IPC: G11C17/04
Filed: 1971-05-05
Abstract: 1349376 Read only memory; code converter AGES SpA AZIENDA GENERALE ELETTRONICA SERVOMECCANISMI 5 May 1971 [6 May 1970] 13147/71 Headings G4A and G4H A capacitive read only memory is provided, e.g. for code conversion. A first printed circuit board comprises 16 electrically conductive strips 3, any one of which may be selected using one transistor 1 and one transistor 2 and positively charged by cutting off transistor T1 after transistor T2. A second printed circuit 6 is placed above the first circuit, the two being separated by a thin electrically insulating layer, the circuit 6 having electrically conducting areas 7, 8, 9. The areas 7 form capacitances with the charged strips 3 and four output pulses pass to output amplifiers 12. Where there is no area 7 only a small output is received which is distinguishable from the said pulses. Mechanical presses keep the circuits mutually aligned and screens protect the memory from outside interference. A fresh read only memory can be made by inserting a fresh circuit 6. A modification (Fig. 2, not shown) provides two complementary outputs on each row, and 12 is then constituted by a differential amplifier.
Patent GB-496938-A (GB)
Title: Improvements in flotation processes
Filed: 1937-05-08
Abstract: Calcium carbonate is separated by froth flotation from material admixed therewith by the use of a reagent comprising an unsaturated fatty acid having more than one pair of doubly bonded carbon atoms and/or an alkali metal salt thereof.  The acid or soap may be mixed with other fatty acids or soaps, e.g. a suitable product may be obtained by saponifying or hydrolysing a natural oil provided that this contains the glyceride of an unsaturated fatty acid of the type defined such as linoleic acid or clupanodonic acid.  Examples of suitable natural oils are arachis oil, rape oil, mustard oil, cotton seed oil, maize oil, linseed oil, and marine oils such as whale oil, herring oil, seal oil, and sardine oils.  The oil may be saponified and the crude soap used, or the soap may be separated before use, or it may be separated and the fatty acids extracted by adding mineral acids.  These fatty acids or those obtained directly by heating the oil with steam under pressure may be used as such or may be neutralized wholly or partially with sodium or potassium hydroxide, carbonate, or bicarbonate.  Frothers may be used in the flotation process, and there may be added mineral oils as froth stabilizers, sodium or potassium hydroxide, carbonate, or silicate as dispersing agents, and sodium silicate as a depressor for quartz or sand. The reagents derived from rape and mustard oils are stated to be particularly suitable for flotation at low temperatures, e.g. 6 DEG C.  The materials treated may be limestones, including dolomitic limestones, chalks, marls, and calcareous clays, shales, sands, and sandstones; the process may be used to produce a raw material suitable for use in cement manufacture or for the preparation of whiting, lime, or calcium carbonate suitable for chemical processes. The Provisional Specification refers also to the use of derivatives and substitution products of the fatty acids, e.g. hydrogenated, sulphonated, or chlorinated products.  The use of fatty acids and soaps derived from tall oil is disclaimed.
Patent GB-132563-A (GB)
IPC: F02C5/12
Abstract: 132,563. Hemingway, G. H. June 24, 1918. Working-fluid supply; blades &c.-The gas mixture for an internal-combustion turbine c is suppiied through passages d by a centrifugal compressor a which delivers through a valve disk a<1> and sleeve valves e<4> to chambers d<2>, where it is further compressed by reciprocating pistons e<1>. After ignition by plugs f, the gases are delivered through stator vanes d<3> to rotor blades c<1> which are only exposed during the time of firing, the other portion of the disk c<2> being solid so as to seal the combustion chamber during compression. The other fixed and moving blades c<5>, c<3> are secured in dovetailed channels formed by pairs of rings c<6>, the whole being held in position by screw pins c<7> engaging the outermost rings. The piston e<1> is so actuated as to have a temporary stoppage through a throw-over action at the end of the stroke during the explosion. Water jackets k are provided. In a modification, the turbine is arranged concentrically around the centrifugal compressor, and the pistons e<1> move axially instead of radially.
Patent GB-475060-A (GB)
Title: Process for the electrolytic manufacture of hyposulphites
IPC: F01N3/05
Filed: 1936-05-11
Abstract: 475,060. Electrolytic production of hyposulphites. I. G. FARBENINDUSTRIE AKT.-GES. May 11, 1936, Nos. 13361 and 13362. Convention dates, May 10, 1935 and June 7, 1935. [Class 41] In the electrolytic production of hyposulphites by cathodic reduction of a bisulphitecontaining solution, a solution having an alkaline reaction is employed as anolyte; this may be an alkali metal hydroxide or carbonate but an alkali metal sulphite solution is also suitable. An excess hydrostatic pressure is maintained in the anode chamber whereby the alkaline anolyte is forced through the diaphragm; sulphur dioxide is passed into the catholyte for formation of the bisulphite. A solution of bisulphite and sulphate is obtained in the anode compartment. Part of this may be used subsequently as catholyte and the remainder treated for recovery of sulphur dioxide. The cathode may be of lead but preferably consists of spaced thin wires ; a silver wire net is suitable. The anode may be of lead or V2A steel. The catholyte may be agitated by introduction of inert gases such as carbon dioxide, hydrogen or nitrogen.
Patent GB-235545-A (GB)
Title: Improvements in or relating to the printing of textile fabrics
IPC: B41F22/00
Filed: 1925-05-22
Abstract: 235,545. Koechlin Soc. Anon., FrÞres. June 16, 1924, [Convention date]. Set-off, preventing; blankets.-The fabric C is passed between a printing-roller and a wire gauze web A serving as an ink-absorbing element. The ink absorbed is removed by brushes, and a. washing-device E, and the web A is dried by a drying-drum F or by a heated chamber. The web A may be coated with a plastic substance such as rubber. The invention is shown applied to a machine of the type comprising a large impression cylinder B and an endless impression blanket D; the latter, however, may be omitted.
Patent GB-1143067-A (GB)
Title: Finishing glass fibers
IPC: C03C25/26
Filed: 1967-03-22
Abstract: 1,143,067. Coated glass fibrous materials. BADISCHE ANILIN-& SODA-FABRIK A.G. 22 March, 1967 [23 March, 1966; 12 Jan., 1967], No. 13420/67. Heading B2E. [Also in Division D1] Glass fibres and articles formed therefrom e.g. woven and nonwoven fabrics are finished by impregnating with an aqueous liquor which contains at least one film forming high molecular weight substance and, if desired, one or more finely divided pigment and/or conventional additives, and drying the impregnated material, wherein the material is impregnated with aqueous hydrofluoric acid before, during or after the treatment and then dried at a temperature of at least 50‹C. The fibrous material may be first impregnated with an aqueous liquor which contains hydrofluoric acid and at least one film forming high molecular weight substance, and the material then dried at a temperature of at least 50‹C; the impregnated material may be subsequently treated with film forming high molecular weight substances and, if desired, pigment and/or conventional additives. The hydrofluoric acid may be applied at the rate of 0.01-3%, and the film forming high molecular weight substance may be applied in a total amount of 0.05-10%, calculated as anhydrous pure substance and based on the weight of the fibrous material. After drying the fibrous material may be mechanically pressed or bent, or may be callendered at a lineal pressure of 10-60 kg/cm. The high molecular weight substance may be synthetic or naturally occurring and has a molecular weight of at least 10,000; examples are given.
Patent GB-1309041-A (GB)
Title: Processes for preparing lincomycins
IPC: C07H15/16
Filed: 1971-05-06
Abstract: 1309041 7-Halolincomycins UPJOHN CO 6 May 1971 [26 May 1970] 13506/71 Heading C2C Title compounds are prepared by reacting a compound where Ac is H or carboxyacyl with Rydon reagent and removing the 3,4-O-cyclic sulphite group by hydrolysis.
Patent GB-699372-A (GB)
Title: Improvements in or relating to a method for chlorinating 3a,4,7,7a-tetrahydro-4,5,6,7,8,8-hexachloro-4,7-methanoindene and the resulting product
IPC: C07C17/10
Filed: 1951-06-07
Abstract: Chlordene (3a,4,7,7a - tetrahydro - 4,5,6,7,8,8-hexachloro - 4,7 - methanoindene) is chlorinated by reacting it with chlorine in the presence of a silica catalyst.  The chlorination is carried out until not more than about 1.25 and preferably 1 mol. of chlorine has reacted per mol. of chlordene.  The reaction may be effected between about -35 DEG  and 50 DEG  C. and preferably from 0 DEG  to about 30 DEG  C.  The product contains a preponderant amount of 1,4,5,6,7,8,8-heptachloro - 3a,4,7,7a - tetrahydro - 4,7 - methanoindene, and also smaller amounts of chlordane (2,3,4,5,6,7,8,8 - octachloro - 3a,4,7,7a - tetrahydro-4,7-methanoindene) and 1,2,3,4,5,6,7,8,8-nonachloro - 3a,4,7,7a - tetrahydro - 4,7 - methanoindene.  The chlorination is preferably carried out in the presence of an inert solvent which is later removed, e.g. by distillation at reduced pressure. The mixture obtained may be used directly as an insecticide, or the more potent heptachloro compound may be isolated by crystallization or chromatographic means.  In an example, chlorine is added to a mixture containing chlordene, carbon tetrachloride and ground silica gel while the temperature is maintained at about 25 DEG  C. to yield a product containing 77.6 per cent of the heptachloro compound, the remainder being chlordane.  In a second example, the catalyst is ground silica aerogel and the product contains 75.4 per cent of the heptachloro compound. Specification 618,432 is referred to.ALSO: 1,4,5,6,7,8,8-Heptachloro-3a,4,7,7a-tetrahydro-4,7-methanoindene and mixtures thereof with the corresponding octachloro compound (chlordane) and nonachloro compound, obtained by the chlorination of chlordene4, 5,6,7,8,8-hexachloro-3a,4,7,7a-tetrahydro-4, 7 - methanoindene) in the presence of a silica catalyst (see Group IV (b)), are used as insecticides.  The heptachloro compound may be purified by crystallization from solution in methanol, butanol, pentane and hexane.  Examples are given of the effect on roaches of the hepta-, octa- and nonachloro compounds when dissolved in deodorized kerosene.
Patent GB-966051-A (GB)
Title: Striped detergent bars
IPC: B29C48/03
Filed: 1962-04-09
Abstract: <PICT:0966051/C4-C5/1> <PICT:0966051/C4-C5/2> Cakes of soap or detergent contain at least one stripe of material differing from that forming the body of the cake, which extends from the surface of the cake to about the midplane thereof.  As shown, in a preferred embodiment, a soap cake 10 contains four stripes in pairs 12 and 13 and 15 and 16 which are contained in opposite faces 11 and 14 of the cake but are offset.  It is preferred that the grain of the body of the cake and of the stripe be substantially parallel, and that the stripes differ in colour from the cake.  The stripes may contain a germicide such as 3: 41: 5-tribromo-salicy -anilide, a superfatting agent such as stearic acid, a synthetic detergent such as sodium N-tallow-acyl-N-methyl taurate, or a cosmetic cream, while the body of the cake suitably comprises a sodium soap from a mixture of 80% tallow and 20% coconut oil.  An extrusion die for producing such tablets is described (see Division B5).
Patent GB-982818-A (GB)
Title: Removable lids for crucible furnaces of the pit type
Inventor: BRANT SAMUEL GORDON
IPC: F27D1/18
Filed: 1963-04-05
Abstract: 982,818. Furnase covers. A. FRYER & SONS Ltd. Jan. 29, 1964 [April 5, 1963], No. 13590/63. Heading F4B. A removable lid for a crucible furnace comprises a slab 10 of refractory material carried by a marginal frame 11, which frame is provided with axially-aligned, spaced wheels 15 and means for attaching or engaging a hand lever 20 so that the lid can be tilted about the wheel axis and trundled to one side. As shown in Fig. 1, two wheels 15 are mounted in brackets 16 along one side of the frame 11, and attached to the opposite side of said frame are two elongated angle-brackets 13 with apertures 17 to provide the means for engaging the hand lever 20. As shown in Fig. 3, the slab 10 has its underside formed with a boss 21 which engages the furnace mouth, and its upper surface formed as a truncated pyramid.
Patent GB-791949-A (GB)
Title: Improvements in mowers
IPC: A01D57/01
Filed: 1955-05-11
Abstract: 791,949. Lawn mowers. WHITFIELD, A. J. May 7, 1956 [May 11, 1955], No. 13626/55. Class 6(2). A lawn mower comprising a cutting cylinder 5, the height of which is adjusted by means of a forwardly mounted roller 4, is provided with a rake or comb member mounted between the cutting cylinder and the roller for the purpose of raising the grass which has been flattened by the roller. The rake or comb member comprises a tubular portion 6 fitted with tines 8 which are inclined towards the cutting cylinder at their operative ends. The tubular portion of the rake or comb member is supported between the side frames of the mower and engages at each end a screwed member 7 carrying a spring 9 whose ends are restrained by the mower frame and the tubular portion 6 respectively, the two springs serving to counteract the back pressure exerted on the tines during the operation of the device. The pressure exerted by the springs may be varied by screwing the members 7 into or out of the tubular portion 6, and locking nuts 13 are provided in order to keep the members in the desired position.