baber/WOPTO huggingface dataset:
Patent GB-1513339-A (GB)
Title: Grinding spring ends
IPC: B23H5/08
Filed: 1976-08-03
Abstract: In the known electrolytic grinding according to Mordekhai, two springs are ground simultaneously at one end each and, after the springs are turned, are likewise ground at the other two ends. The object of the invention is to provide a method and an apparatus with which the spring ends can be electrolytically ground in a simpler and more accurate manner. This object is achieved in that many helical springs (2) are simultaneously machined at both ends (5, 6) by means of two grinding wheels (10, 12), of which one (10) is displaceable and serves to axially align all springs, and are held in place by means of a device (3) for the simultaneous clamping of all springs after the alignment. To this end, the springs are inserted into a work carrier (1) having hollow spaces for accommodating the individual springs. Apart from this insertion of the springs, the method can be carried out automatically with the apparatus. <IMAGE>
Patent GB-268418-A (GB)
Title: Improvements in or relating to electric cables
IPC: H01B7/22
Filed: 1925-12-23
Abstract: 268,418. Macintosh Cable Co., Ltd., and Williams, A. W. Dec. 23, 1925. Cores for cables; cables, arrangement and disposition of parts of; cables with auxiliary conductors.- Relates to cables such as those used for supplying electrical apparatus in mines, of the kind comprising a plurality of cores embedded in rubber &c. insulating material. and consists in providing the cores with a conducting sheath consisting of wire cords each composed of a group of spirally twisted strands, the cords being helically twisted in one direction about the cores in such a manner as to lie close together without crossing. Fig. 1 shows a cable comprising three power cores 1 arranged symmetrically about a central earthing core 2. All the cores are similarly constructed and consist of a central conductor 4, Fig. II, insulation 5 and a sheathing of helically wound conducting cords 6 each formed of a number of helically twisted wires. The sheathings of the power cores are in electrical contact with the sheathing of the earth core or with a bare earthing conductor 11 as in Fig. V. Cushioning pads may be interposed between the power cores and one of the pads may carry at its outer edge an earthing conductor 12. Fig. IV shows an arrangement in which the power cores 1 and the earthing conductor 8 wrapped with insulation 9 to enlarge it to the size of the power cores are supported and spaced by a pad 10 of cross shape. The Provisional Specification refers to Specification 209,831, [Class 38 (v), Electric switches &c.].
Patent GB-189786-A (GB)
Title: Improvements in cage presses
IPC: B30B9/26
Filed: 1922-11-28
Abstract: 189,786. Stehlin, C. F. Nov. 28, 1921, [Convention date]. Fats and fatty oils, extracting by pressure. The walls or wall plates of a press chamber have liquid-discharge ducts or grooves communicating with outlet passages, and means are provided for admitting steam or other heated fluid for the purpose of removing obstructions from the passages and grooves and heating up the press. The walls and separating plates are formed with comparatively large grooves 20 into which are inserted coiled wire 26, Figs. 9 and 10, or a pair of wires twisted together, or a twisted wire of square section. The grooves in the drainage walls may be provided with auxiliary grooves 25 at the back and communicate by apertures 24 with vertical drainage passages 15, Fig. 1, in the outer casting 12. The grooves may be undercut 'and the outer surface 37 of the coils dressed off flat. Filtering- material such as twisted strands of camel's hair may be inserted in the coils. A separating-plate having grooves 40' with inserted coils 41<1> in staggered relation on opposite sides of the plate is shown in Fig. 24. The top and bottom plates 43, 44 are larger in cross-section than the ram 10 and are recessed at the edges to form an anchorage for solid matter compressed between the plates and the walls. The recesses may take the form of a series of holes 45, Fig. 4, a semi-circular groove 46, or an angular groove 47. The drainage passages are cleared of solid matter by steam or other heated fluid admitted as jets into the passages 15 from bores 53 in the press-head 16 which are in communication with header pipes 50. Fig. 20 shows a modified form of press in which series of inlets 60 for steam are provided at different levels. The passages 60 may be left open during pressing, so that outflow of oil therethrough will indicate clogging of the drainage passages.
Patent GB-1443000-A (GB)
Title: Process and apparatus for solvent extraction
IPC: B01D11/02
Filed: 1973-07-09
Abstract: 1443000 Solvent extraction BLAW-KNOX CHEMICAL PLANTS INC 9 July 1973 32604/73 Heading B1Q In a solvent extractor comprising a plurality of cells arranged circumferentially around a generally vertical rotation axis each cell having a bottom retaining closure maintained in a substantially closed position by a track for a section of the rotational path; a liquid collection zone beneath the cells divided into a plurality of compartments for receiving solvent the material to be extracted is continuously introduced through conduit 60 together with miscella in line 100. As each cell passes the dividing wall 51 separating collection compartment A from compartment B the material is contacted with miscella stream from manifold 101. The major portion of the miscella freed from fines by screen 52 flows out by line 54 while minor quantities pass with the fines into compartments A and C. The solids are contacted with recycled miscella of different strength through the succession of manifolds in compartments C, D and E. As the leading edge of a cell passes over compartment F a switch activates a timer and causes fresh solvent to be introduced through manifold 91 under flooding conditions. As the cell approaches the discharge chute in the bottom of the extractor the track assembly allows the door at the bottom of the cell to open and solids are discharged.
Patent GB-407652-A (GB)
Title: Improvements in or relating to transmitting devices for ultra-short waves
IPC: H03C7/02
Filed: 1933-11-22
Abstract: 407,652. Wireless signalling. PINTSCH AKT.-GES., J., 71, Andreasstrasse, Berlin, and KOHL, K., 84, Henkestrasse, Erlangen, both in Germany. Nov. 22, 1933, No. 32670. Convention date, Dec. 6, 1932. [Class 40 (v).] In an ultra short wave transmitter comprising a generator, coupling means and an aerial, modulation is effected by a mechanical movement of either of the latter effected electrically, mechanically or acoustically. In one embodiment generators 1, 2, Fig. 1, are coupled to conductors 3 in close relationship with an aerial 4, the latter carrying a dielectric diaphragm 7 caused to oscillate at the modulation frequencies. In order to impose a steady load on the generators, an auxiliary phantom aerial, or an aerial radiating the same signals in a different direction, is coupled to the generators and vibrated in opposite phase. In another embodiment one of the feeder wires 8, Fig. 2, is divided into two parts by a vibratable diaphragm 9 with its edge disposed opposite a rigid edge 10. The conductor 8 may contain a plurality of such couplings operating together.
Patent GB-1472205-A (GB)
Title: Spin-driers
IPC: D06F49/00
Filed: 1974-07-24
Abstract: 1472205 Spin driers PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 24 July 1974 32693/74 Heading F4G [Also in Divisions E2] A spin drier comprises a basket which is rotatable by a motor through a fluid coupling 13, hydraulic fluid, in use, flowing from one part, e.g. a wall 17, of the coupling 13, through a conduit 20 external to the coupling 13 and back to a further part, e.g. a turbine 23, of the coupling 13 to drive the basket. As disclosed the basket is mounted on a shaft 6 and the motor drives the one part of the fluid coupling by a belt co-operating with a pulley 15 thereof. The pressurized fluid may be used to hold off a spring applied, fluid pressure released brake shoe 26 of an internal shoe drum brake and also to hold a bolt 32 in a lid fastening position. The spin drier may form part of a twin-tub washing machine (Fig. 1, not shown).
Patent GB-190000-A (GB)
Title: Improvement in or connected with hydraulic jacks
IPC: E21D15/54
Filed: 1921-12-06
Abstract: 190,000. Law, E. Dec. 6, 1921. Jacks. - A spring - supported plunger E is mounted in the ram A of an hydraulic jack so, that its head G normally projects beyond the crutch F. When the weight of the load ceases to be taken by the crutch, the spring C will force the ram downwards and free the crutch from the load so that the jack can be readily removed.
Patent GB-470314-A (GB)
Title: Improvements in and relating to pipe and rod bending appliances
IPC: B21D7/06
Filed: 1936-11-30
Abstract: 470,314. Bending tubes. SCHOFIELD, L. Nov. 30, 1936, No. 32764. [Class 83 (iv)] In apparatus for bending tubes &c. a stationary former 1 co-operates with a bender 7 swung about a removable pin 8. The former 1 is held by a member 3, fitted with an aluminium-cased wood handle (not shown), adjustably secured to the former by a removable pin 10. The former carries grooves 2a for the tube and clips for securing the tube to the former. In a modification, the member 3 may be secured to the former 1 by ratchet-and-pawl means.
Patent GB-366523-A (GB)
Title: The manufacture of magnetic metals and alloys
IPC: C21D1/78
Filed: 1930-10-31
Abstract: The magnetic permeability of a ferro-magnetic material or alloy is increased by subjecting the material, prior to the final heat treatment, to a predetermined amount of cold working, e.g. rolling, so as to reduce the material to the finished size without producing an overworked or underworked condition.  An example is given in which the alloys produced according to Specification 266,066, [Class 82 (i), Metals, Extracting &c.], may be hot rolled to a thickness of 0,06\yF, cold rolled to 0,018\yF or 0,02\yF, annealed and finally cold rolled to 0,005\yF and given a heat treatment at about 1150 DEG C.  When the alloy has received excessive cold working the magnetic permeability may be increased by a more prolonged heat treatment. Additions of small quantities of other elements, such as silicon, may be made to render the crystalline formation more readily attainable, examples of such alloys being (1) iron 16,8 per cent, chromium 1,6 per cent, manganese 0,7 per cent, copper 5,0 per cent and silicon 0,02 per cent, (2) iron 16,8 per cent, chromium 1,6 per cent, manganese 0,6 per cent, copper 5,0 per cent, and silicon 0,2 per cent, or (3) iron 16,65 per cent, chromium 1,36 per cent, manganese 0,4 per cent, copper 4,9 per cent and silicon 0,18 per cent, the remainder in each case being nickel.  The alloy of example (3) is reduced by cold rolling to a strip 0,015\yF thick, the reduction being about 60 per cent, is then sheared off to a width of 3/4 \yF, wound in a spiral of 3\yF internal diameter and 4,9\yF external diameter and is finally heat treated in a neutral atmosphere at 1120 DEG  C. for 30 minutes and cooled in an annealing box, withdrawn from the furnace.
Patent GB-942982-A (GB)
Title: Method of preparing phenol and acetone from cumene hydroperoxide
IPC: C07C37/08
Filed: 1962-08-27
Abstract: Phenol and acetone are produced by gradually adding a solution of cumene hydroperoxide in cumene of a concentration of at least 70% by weight and hydrochloric acid simultaneously to cumene or a previously decomposed solution of cumene hydroperoxide in cumene, the rate of addition of the acid being adjusted to cause its concentration in the reaction mixture to range between 0.1% and 1.1% by weight throughout the process. Hydrochloric acid may be employed in pure gaseous form or as a concentrated aqueous solution, e.g. of a concentration of 35 to 36% by weight. It is preferred to carry out the process continuously and to employ a reaction temperature of 30 DEG C. to 100 DEG C.  On completion of reaction the reaction mixture is withdrawn, neutralised, the catalyst removed, and acetone, phenol and other compounds separated by distillation. Examples are furnished.
Patent GB-421014-A (GB)
Title: Improvements in and relating to the cementation of iron, steel and alloys thereof
IPC: C23C8/46
Filed: 1933-11-23
Abstract: Melt baths for the cementation of iron, steel or alloys thereof are prepared by fusing together alkaline earth carbides and inert salts such as common salt, potassium chloride or mixtures of the same in the presence of alkaline-reacting agents such as caustic soda, sodium carbonate or sodium oxide.  The temperature of the baths used for the cementation varies between 700 and 1050 DEG  C.  In an example the bath consists of 10 kgms. of potassium chloride, 10 of sodium, carbonate and 1,1 of calcium carbide.
Patent GB-511243-A (GB)
Title: Improvements in or relating to absorption refrigerating systems and apparatus
IPC: F25B17/00
Filed: 1938-08-19
Abstract: 511,243. Refrigerating. PRESSED STEEL CO., Ltd., NOLCKEN, W. G., and BRANDON, A. O. Aug. 19, 1938, No. 32809. Divided out of 511,230. Drawings to Specification. [Class 29] Absorption systems.-The subject-matter is the same as that described in Specification 511,230, the claims being directed to liquid circulation by gas-lift pumps in the same direction in the generating and absorbing periods. Specifications 219,278, [Class 29], 438,959, 453,827, 511,244, and. 511,246 also are referred to.
Patent GB-1074885-A (GB)
Title: Improvements relating to the production of pyridoxal phosphate
IPC: C07F9/58
Filed: 1964-08-12
Abstract: The invention comprises pyridoxal Schiff's bases of the formula <FORM:1074885/C2/1> wherein R is an alkyl having not more than 6 carbon atoms, aryl or aralkyl group.  The aryl or aralkyl groups may be substituted with a halogen atom, an alkyl group or an alkoxy group having not more than 2 carbon atoms. They may be obtained by reacting a pyridoxal Schiff's base of the formula <FORM:1074885/C2/2> with a phosphorylating agent, and hydrolysing the polyphosphate so obtained with a dilute mineral acid and adjusting the pH to about 2 to 4 to give the pyridoxal Schiff's base.  Pyridoxal phosphate is prepared by hydrolysing the pyridoxal Schiff's bases with a caustic alkali solution.  Suitable phosphorylating agents include a mixture of H3PO4 and P2O5, a mixture of POCl3 and water, H3PO3, and a mixture of P2O5 and water.  If R is alkyl the pH of the solution resulting from acid hydrolysis is adjusted to 2-4 after removing phosphoric acid ions as barium phosphate by adding Ba(OH)2 to the solution.  Examples are given where R is n-butyl, n-hexyl, phenyl, p-chlorophenyl, p-tolyl, o- or p-ethoxy-phenyl, o-methoxy-phenyl, benzyl, or phenethyl. Pyridoxal phosphate may be used as a material having the enzyme effect of Vitamin B6 useful as a medicine for curing various forms of dermatitis, pellagra, morning sickness and liver troubles.  Pyridoxal Schiff's bases may be prepared by condensation of an aqueous pyridoxal mineral acid salt solution and the appropriate organic amine.
Patent GB-946832-A (GB)
Title: High molecular weight linear polymers and process for preparing the same
IPC: C08G2/00
Filed: 1960-09-26
Abstract: High molecular weight linear polymers of aldehydes of general formula R-CHO, R being aralkyl group of 2 to 10 carbon atoms, a cycloalkyl or an arylalkyl group, and copolymers of such aldehydes with each other and/or with formaldehyde and/or with acetaldehyde are prepared by treating the monomers in the liquid phase under anhydrous conditions with a Lewis acid which is:  (a) a compound of formula MeXnRm where Me is a Group II or III element, X is halogen, alkyl, aryl or hydrogen, R is alkyl aryl, alkoxy or acyl, n is O or an integer and n+m is the valency of the element.  (b) a compound of formula MeXnRm where Me is a metal of Group IV, V, VI or VIII, X is halogen, R is alkoxy or acyl or oxygen, m is zero or an integer n is an integer or may be zero when R is alkoxy and n+m is the valency of the metal. (c) addition complexes of the above with Lewis bases containing oxygen, or  (d) a strong acid used in the anhydrous state which in solution in solvents having a high dielectric constant has a dissociation constant at 25 DEG C. above 1X105.  Bulk or solution techniques e.g. in alkanes, halogenated hydrocarbons or ethers, continuously or not may be used. Specified aldehydes include n and isobutyraldehydes, their equimolar mixture, the mixture of isobutyraldehyde with acetaldehyde, iso-valeraldehyde, n-butyraldehyde with formaldehyde, n-heptaldehyde, phenylacetaldehyde, beta phenyl propionaldehyde and beta - phenylbutyraldehyde.  Catalysts listed include boron fluoride, with etherate, anhydrous iron or zinc chloride, zinc and aluminium alkyls and their etherates and an acyl titanium halide.
Patent GB-609038-A (GB)
Title: Improvements in and relating to high frequency generators
IPC: H05B6/04
Filed: 1945-12-06
Abstract: 609,038. Valve generating circuits. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 6, 1945, No. 33033. Convention date, Dec. 9, 1944. [Class 40 (vi)] In a high-frequency generator, a grid-leak resistance having a high positive temperature coefficient of resistance is provided and arranged to have such current carrying characteristics as to be heated by the increased negative bias voltage produced when the load on the generator is reduced. In this way the increase in the resistance increases the grid bias and so limits the grid current. The Figure shows a generator 3, the tank circuit of which is tuned by the coil 11 and earthed through the choke 19 and includes the work coil 1 of an induction heater and may operate at. 500 kc. The grid-leak circuit is made up of the choke 18 and tungsten filament lamps.
Patent GB-1279421-A (GB)
Title: Process and apparatus for transforming a cylindrical cupped blank into a hollow metallic part
Inventor: CUQ PIERRE
IPC: B21D26/02
Filed: 1969-07-01
Abstract: 1279421 Stamping P CUQ 1 July 1969 [4 July 1968 17 Dec 1968 9 April 1969] 33053/69 Heading B3Q In a process and an apparatus for transforming a cylindrical cupped blank into a hollow metallic part in which the blank 49, Fig. 2, is filled with fluid then subjected to an axial deforming action by means of a jack 53 and a radial deforming action which increases the diameter, the surface area of the blank is maintained constant throughout the transformation process by controlling the volume of fluid within the blank by means of a regulator operated by a cam 114 actuated by the piston 54 of the jack 53, the cam profile being designed in accordance with the curve of the variation of blank volume as a function of decreasing blank height, and finally the blank is calibrated after isolation of the regulator from the fluid in the blank. The cam may be operated by a rack and pinion as shown and the surface co-acts with a transmission to operate the regulator. The transmission may be a mechanical linkage, an oleohydraulic transmission, or a potentiometer coupled through thyristors to an electric motor driving a worm gear attached to the piston of the regulator. In another embodiment the cam may be linear and operate directly on the piston of the regulator. For parts which have several different diameters the axial compression may be carried out in successive stages with multipart dies.
Patent GB-1249013-A (GB)
Title: Improvements in or relating to lampshades
Inventor: SAMOLS LEONARD CECIL
IPC: F21V1/00
Filed: 1969-07-01
Abstract: 1,249,013. Lampshades. MODERN MOULDINGS Ltd. 16 June, 1970 [1 July 1969], No. 33175/69. Heading F4R. A lampshade comprises upper and lower support rings 1, (2) and a plurality of shade elements 3 formed of resilient sheet material and each provided with two pairs of holes 5, 5<SP>1</SP> and 6, 6<SP>1</SP> of a diameter similar to that of the material forming the support rings, the holes of each pair being joined by a slit 8, 9 so that the elements can be mounted on the support rings by passing a portion of each ring edgewise through each slit to seat the rings in the holes. The elements are preferably circular discs of thermoplastic material which are distorted, by engagement with the rings and with neighbouring elements, into a substantially U-shaped form.
Patent GB-340682-A (GB)
Title: Process for the manufacture of alkylated phenols
IPC: C07C37/52
Filed: 1929-10-31
Abstract: Alkylphenols are prepared by heating dioxydiphenylmethane compounds with cyclic alcohols in equimolecular proportions at a temperature of about 220 DEG  C. in the presence of a hydrogenation catalyst.  The dioxydiphenylmethane compound is thereby split and hydrogen is taken up from the cyclic alcohol which becomes dehydrogenated into the corresponding ketone.  Cyclic alcohols specified are borneol, cyclohexanol and its homologues such as methylcyclohexanol or the mixed methylcyclohexanols obtained by the hydrogenation of crude cresol.  According to the examples, p-ethylphenol, phenol and cyclohexanone are obtained from 4 : 4<1>-dioxydiphenylmethylmethane and cyclohexanol; p-isopropylphenol, phenol and cyclohexanone from 4 : 4<1>-dioxydiphenyldimethylmethane and cyclohexanol; and thymol with m-cresol and cyclohexanone or methylcyclohexanone from 2 : 2<1>-dioxy-4 : 4<1>-dimethyldiphenyldimethylmethane and cyclohexanol or methylcyclohexanol.  In each case a nickel-containing catalyst is present.  The Specification as open to inspection under Sect. 91 (3) (a) also describes the use of such hydrogenated compounds as exist in a plurality of hydrogenation stages in lieu of cyclic alcohols. This subject-matter does not appear in the Specification as accepted.ALSO:Alkylphenols are prepared by heating dioxydiphenylmethane compounds with cyclic alcohols in equimolecular proportions at a temperature of about 220 DEG  C. in the presence of a hydrogenation catalyst.  The dioxydiphenylmethane compound is thereby split and hydrogen is taken up from the cyclic alcohol which becomes dehydrogenated into the corresponding ketone.  Cyclic alcohols specified are borneol, cyclohexanol and its homologues such as methylcyclohexanol or the mixed methylcyclohexanols obtained by the hydrogenation of crude cresol.  According to the examples, p-ethylphenol, phenol and cyclohexanone are obtained from 4 : 41-dioxydiphenylmethylmethane and cyclohexanol; p-isopropylphenol, phenol and cyclohexanone from 4 : 41-dioxydiphenyldimethylmethane and cyclohexanol; and thymol with m-cresol and cyclohexanone or methylcyclohexanone from 2 : 21-dioxy-4 : 41-dimethyldiphenyldimethylmethane and cyclohexanol or methylcyclohexanol.  In each case a nickel-containing catalyst is present.  The Specification as open to inspection under Sect. 91 (3) (a) also describes the use of such hydrogenated compounds as exist in a plurality of hydrogenation stages in lieu of cyclic alcohols and refers to the hydrogenation catalyst as an optional addition. This subject-matter does not appear in the Specification as accepted.
Patent GB-957320-A (GB)
Title: Improvements in or relating to dielectric heating apparatus
Inventor: SPASH DAVID ISAAC
IPC: F26B3/347
Filed: 1961-09-15
Abstract: 957,320. Dielectric heating apparatus. RADYNE Ltd. Sept. 17, 1962 [Sept. 15, 1961], No. 33196/61. Heading H5H. Dielectric heating apparatus for heating rolls of material comprises upper and lower electrodes, the lower electrode including at least two conductive parallel rollers 2, 3 and means for rotating them to rotate a roll of material 1 positioned on them with its axis parallel to that of the rollers, the upper electrode following the contour of roll 1 to some extent. As shown, the upper electrode consists of two plates 7, 8, which may be curved and which may be adjustable. The two plates may be hinged to provide angular adjustment or replaced by a single shaped plate. The upper electrode is connected through conductor 9 to the live terminal of the generator and rollers 2, 3 are electrically connected through supports 4, 5 and base-plate 6 to the earthed terminal of the generator. There may be capacitive coupling between rollers 2, 3 and base-plate 6 instead of electrical contact. Means may be provided for altering the angular spacing of the rollers to accommodate rolls of different diameters. Rollers 2, 3 are driven by a chain from a motor.