baber/WOPTO huggingface dataset:
Patent GB-687043-A (GB)
Title: Improvements relating to methods of and apparatus for applying rubber soles to articles of rubber footwear
IPC: B29D35/10
Filed: 1951-03-29
Abstract: 687,043. Attaching rubber soles. SUPERGA FABBRICHE RIUNITE INDUSTRIA GOMMA TORINO SOC. PER AZIONI. March 29, 1951 [May 10, 1950], No. 7340/51. Class 17 (i). A rubber sole is adhesively attached to the underside of insole and the lower part of the upper of a rubber footwear such as a galosh, by fluid pressure applied through an elastic flexible membrane. The lasted upper and insole component are supported in inverted position on a last 8 supported in a readily detachable manner on a work plate 3 in an opening formed by a wooden filling 6. The plate 3 is secured to a rigid frame 1 along the upper edge of which is a rubber gasket 5. A second frame 17 is hinged along one edge to the frame 1 and has fixed to it, by a metal band 18, a membrane 19. A suction unit 21 in a recess in the filling 6 creates a vacuum on the underside of the membrane to press the edge of the sole against the insole and sides of the upper. A three-way valve 23 to which the unit 21 is connected may be operated by the closure of the frame 17.
Patent GB-1194166-A (GB)
Title: Improvements in or relating to Multi-Spindle Lathes.
IPC: B23B9/00
Filed: 1969-02-11
Abstract: 1,194,166. Automatic lathes. PITTLER MASCHINENFABRIK A.G. 11 Feb., 1969 [17 Feb., 1968], No. 7351/69. Heading B3T. A multi-spindle lathe comprises a horizontally disposed indexable spindle drum 1 mounted in pre-loaded taper roller bearings 5, 6. The loading of the bearings is effected by springs 7 which act on one of the bearings to eliminate radial and axial play.
Patent GB-1003171-A (GB)
Title: Refining of irons and steels
IPC: C21C7/04
Filed: 1962-02-26
Abstract: Steels and irons, both alloyed and unalloyed, are refined by the addition thereto of 0.001-1% by weight of a mixture of Mg3(BO3)2 and Mg(BO2)2 containing 30-70% by weight of each constituent.  The addition may be made in the furnace, the ladle or the mould.
Patent GB-369379-A (GB)
Title: Well reamers
IPC: E21B10/30
Filed: 1931-03-10
Abstract: 369,379. Well reamers. ROGERS, F. H., 181, Queen Victoria Street, London.- (Security Investment Co. of Whittier ; Whittier, California, U.S.A.) March 10, 1931, No. 7394. [Class 85.] In a well reamer comprising rotary cutters, the latter are held rigidly against inward movement on the tool body and have their ends in different radial planes, while each cutter is approximately of barrel shape to engage the wall of the hole throughout its length. A body 10 has an enlargement 13 with inclined recesses 18 receiving rotatable cutters 19 on pins 20 with heads 20A and threaded stems 20B both offset towards the axis of the body. Grooves 24 may be provided between the recesses 18. The barrel-shaped cutters may have annular teeth 23 as shown or the teeth may comprise single or multiple helical threads ; the teeth may be interrupted by grooves arranged axially or helically. Further, the cutters may be longitudinally divided.
Patent GB-137961-A (GB)
Title: Improvements in jacquard mechanism of looms for weaving
IPC: D03C3/24
Filed: 1919-03-25
Abstract: 137,961. Whalley, T. H., and McMurdo, A. March 25, 1919. Jacquards; cards and card chains. - In crossborder jacquards of the type described in Specifications 17883/12 and 16794/13, the lattice barrel j, Fig. 1, wihch is lagged to effect the necessary changes, is provided with a double ratchet-wheel i operated by catches k, l actuated from a rocking shaft m, preferably the oscillating shaft carrying the two-armed lever described in Specification 17883/12. Normally, the catch k moves idly on a plane surface i<2> on the ratchet-wheel, and the catch l is held out of operation by a projection l<1> thereon resting on a sliding arm h pivoted to a lever f connected to the bent end of an auxiliary needle a. This needle is connected to one of the ordinary needles b, and one or more extra long cards are used in each chain of pattern cards to operate these needles. When either needle is operated, the support h is withdrawn and the catch l turns the lattice barrel, whereby the necessary change in the pattern is effected. Three wires p<1>, p<2>, p<3>, Fig. 2, in the chain of cards, are used to facilitate the folding of the cards above the card cradle.
Patent GB-924041-A (GB)
Title: Isoquinuclidine alkaloid and processes for obtaining same
Filed: 1960-03-03
Abstract: The invention comprises 12:13-dimethoxy-coronaridine, C23H30N2O4, m.pt. 141-3 DEG C., probably of formula: <FORM:0924041/IV(a)/1> and a process for its extraction from plants of the genus Conopharyngia, particularly C. durissima Stapf. by treating the plant parts with an alkanol of from 1-3 carbon atoms, concentrating the extract, treating the extract with an aqueous solution of an alkanoic acid of from 1-3 carbon atoms, removing the solids that have separated, extracting the clear aqueous acid solution with solvents immiscible with water (preferably after defatting with petroleum ether), evaporating the extract, dissolving the residue in a dilute aqueous alkanoic acid of from 1-3 carbon atoms, basifying the acid solution, extracting it with a water-immiscible solvent, adsorbing the extract on an adsorbent, eluting the new alkaloid and crystallising it.  A modification of this extraction process comprises basifying the clear aqueous acid solution after removal of solids, extracting the solution with a water-immiscible solvent, depriving the organic phase of basic constituents by treating it with a dilute acid, basifying the aqueous phase, collecting the precipitate, subjecting it to counter-current distribution between an aqueous buffer (pH 2.8-3.4) and an organic phase, collecting the new alkaloid and crystallising it.  Detailed examples are given.  Specification 924,042 is referred to.
Patent GB-589892-A (GB)
Title: Improvements in electrically heated soldering irons
IPC: B23K3/03
Filed: 1945-03-26
Abstract: 589,892. Electrically heated soldering irons. SENIOR, A. J. March 26, 1945, No. 7539. [Class 39 (iii)] [Also in Group XXII] An electrically heated soldering iron (Fig. 1) comprises a bit 10 secured to a cylindrical support 12 of low thermal conductivity and small cross sectional area, at the other end of which is borne a weighted handle 15 and an annular stand 14. The bit 10 is hollow to accommodate a heating element 11 as is the support 12. In a modification, a housing, which may be of heat conducting or heat insulating material, surrounds the support 12, which is then secured to it, the handle being attached to the end of the housing which also carries the stand 14. In a further modification, Fig. 4, a shield 22 surrounds the bit, around which is arranged heating element 21. The cylindrical support 23 is solid, as shown in Fig. 4, and is attached to the housing 17 by means of a sleeve 18.
Patent GB-471917-A (GB)
Title: Improvements in the purification of mono-methyl p-aminophenol
IPC: C10L1/223
Filed: 1936-03-12
Abstract: p-Methylaminophenol is purified by a process comprising (a) steam-distillation of a water-soluble metal salt of the compound, preferably an alkali-metal salt, (b) treatment of the steam-distillation residue, as an aqueous solution, with an adsorbent, and (c) azeotropic distillation of the residual solution to remove water, after addition of a reagent capable of liberating the compound from its metal salt.  Step (a) is effected under non-oxidizing conditions, preferably under reduced pressure and in the presence of a reducing agent, such as a mixture of sodium sulphite and zinc dust.  Step (b) also is effected under non-oxidizing conditions, suitably in an atmosphere of nitrogen; the adsorbent may be active charcoal, and the treatment may be repeated. In step (c), the reagent added to liberate the compound from its metal salt may be sodium bisulphite or an aqueous or alcoholic solution of sulphur dioxide, and the organic solvent added for the azeotropic distillation may be a mixture of n-butanol and n-butyl acetate in the proportions 43,7 : 56,3 by weight, or n-butanol alone; the distillate separates into a water layer and a solvent layer, and the latter is returned to the still.  When all the water has been removed the liquid distillation residue is separated from inorganic salts and then treated with sulphuric acid to precipitate p-methylaminophenol sulphate, which is filtered, washed with a little water, and dried.  The process is particularly applicable to p-methylaminophenol prepared from hydroquinone and methylamine, as described in Specification 435,721, and in this application step (a) serves to remove N : N<1>-dimethyl-p-phenylenediamine, step (b) removes non-volatile amines and tarry impurities, while any excess of hydroquinone is recovered by adding water to the filtrate from the p-methylaminophenol sulphate and distilling the mixture; in this case the water layer of the distillate is returned to the still and the hydroquinone is eventually recovered as an aqueous solution.
Patent GB-911776-A (GB)
Title: Improvements in pipes
Inventor: BAKER WILLIAM ANDREW
IPC: F16L9/16
Filed: 1958-03-10
Abstract: 911,776. Non-metallic pipes. BRISTOL AEROPLANE PLASTICS Ltd. March 5, 1959 [March 10, 1958], No. 7630/58. Class 99(2). A pipe of substantially circular cross-section has a wall at least the major part of which is made of at least three layers of helical turns of thread, the threads of successive layers crossing one another and the turns and layers being bonded together with a solid resinous substance. The helix angles and hands of the threads in the layers are such that in any small area of the pipe wall threads extend in at least three different helical directions. The angular differences between the helical directions are substantially equal and the number of threads in each of these directions are substantially proportional to the cosine of the helix angles of such directions. As shown in Fig. 1, the pipe comprises three layers of thread, layers 1, 3 of the same hand having helix angles 15 degrees, 75 degrees respectively and layer 2 of opposite hand having a helix angle of 45 degrees. Alternatively, the pipe comprises six layers of thread, the layers as shown in Fig. 1 being superimposed by three similar layers. In another embodiment. Fig. 5, the pipe comprises layers 1c, 1d of opposite hand with helix angles of 22¢ degrees and layers 2c, 2d of opposite hand with helix angles of 67¢ degrees. In a further embodiment the pipe comprises three layers with right hand 15 degrees helices, three with left hand 45 degrees helices and one with right hand 75 degrees helices. In a still further embodiment the pipe consists of four layers with alternate right and left hand 22¢ degrees helices and two layers of right and left hand 67¢ degrees helices. The pipe is made by moving a mandrel coaxially through rotating creels each carrying the appropriate number of spools of thread to wind one of the layers completely at one pass, the resinous substance being applied to each thread as it approaches the mandrel or to the partially or wholly completed winding and being subsequently cured. The thread is composed of glass fibres while the resinous substance is an epoxide, a polyester or phenol formaldehyde resin. The pipe may have an external and/or internal surface layer of an epoxide resin reinforced with an acrylic or polyamide fibre. Specification 856,570 is referred to.
Patent GB-717159-A (GB)
Title: Improvements in or relating to water boilers for heating apparatus and the like
IPC: F24H1/26
Filed: 1953-03-20
Abstract: 717,159. Hot-water boilers. COCKROFT, J. March 20, 1953, No. 7706/53. Class 64(1) A water boiler comprises a water - jacketed firebox 4 which tapers downwardly and has a door 9. a base or ashbox 11 on which the firebox stands and which has a firegrate 16 in a top opening, and a domed top 19 which has an opening with a lid 20 and a chimney 21 controlled by a damper 22, superposed on the  firebox. The firebox is of sheet metal and may be octagonal, hexagonal, circular &c., in cross-section. An air-heating ring 18 with an air inlet 18A and outlets 18B is interposed between the firebox 4 and top 19, together with one or more other rings if desired. The damper may be thermostatically controlled as described in Specification 570,282.
Patent GB-941351-A (GB)
Title: Improvements in or relating to circuit arrangements for the conversion of analogue values into binary numbers
IPC: H03M1/00
Filed: 1962-02-28
Abstract: 941,351. Pulse code converters. SIEMENS & HALSKE A.G. Feb. 28, 1962 [Feb. 28, 1961], No. 7758/62. Heading H4L. [Also in Division G4] An analogue-digital converter, particularly for a pulse code modulation communication system, comprises two parallel connected chains of eight series connected tunnel diodes, each biased to switch from a low impedance to a high impedance state at one of sixteen equal current steps, means for dividing the analogue current from source N so that equal amounts flow in each chain and detecting means joining predetermined points on opposite chains which provide a 4-digit binary representation of the value of the analogue current. Each of the tunnel diodes is biased by an associated battery and resistance to switch at the value of current indicated, in arbitary units, adjacent the diode. The diodes are so arranged that detector units 2, 2<SP>1</SP>, 2<SP>2</SP> and 2<SP>3</SP>, which produce an output signal (binary 1) when the voltages at their two input terminals are unequal and zero output (binary 0) when these voltages are equal, provide respectively the 4th 3rd, 2nd and 1st digits of the four unit code. For example, the voltage drop across diodes 12 and 8 is applied to input terminal c of detector 2<SP>2</SP>, which provides the 2nd code digit, and the voltage across diodes 4 and 16 to its other input terminal d, at current values below 4 units equal voltages supplied to the detector produce zero output (0), at values between 4 and 8 units, diode 4 switches to its high impedance state which unbalances the detector input voltages and the detector produces an output (1), at values between 8 and 12 units, the detector inputs are balanced since both diodes 4 and 8 are switched to their high impedance states and the detector produces zero output (0), at values between 12 and 16 units, diodes 4, 8 and 12 are switched to their high impedance state, the detector inputs are unbalanced and the detector supplies an output (1).
Patent GB-1456560-A (GB)
Title: Measuring apaaratus
IPC: G01G7/04
Filed: 1974-02-20
Abstract: 1456560 Force balance measuring instruments PRECISA AG RECHENMASCHINENFABRIK 20 Feb 1974 [20 Feb 1973] 7801/74 Heading G1A In a force balance system in which an initial force and the force to be measured are counterbalanced by passing corresponding currents through two coils arranged in a magnetic field, a linear relationship is obtained by maintaining the magnetic field constant by employing a correction proportional to the currents in the coils. In known systems the counterbalancing forces are provided by coils arranged in the field of a strong permanent magnet but the currents through the coils alter the magnetic field to some extent so that the force contains a component proportional to the square of the current. This effect is compensated by arranging auxilliary coils on the magnet and feeding them with suitable proportions of the currents in the main coils the system being proportioned so that the effective magnetic field is maintained constant. As shown, Figs. 1 and 2, a weight K applied to a scale pan 13 deflects a flag 19 the position of which is sensed by two phototransistors 20, 21  connected via a differential amplifier 23 to an integrating regulator 24 which feeds a counterbalancing current through coils 4 and 5. The value of this current is measured by a digital voltmeter 26 connected across a resistor 25 which can be adjusted for calibration purposes. If compensation for an initial force (e.g. due to a container) is to be made the BCD outputs of the digital voltmeter are stored in a digital memory 28 feeding a D:A converter 29 controlling a current generator 30 so that the initial counterbalancing current is transferred to coils 3 and 6, the current through coils 4 and 5 therefore dropping to zero. Any further increase in force is counterbalanced by coils 4 and 5 and the e.g. tare weight displayed. A second scale pan 16 is provided coupled by a lever system to enable much heavier weights to be measured. Compensating coils 5 and 6 are shunted by resistors 7 and 8 which are adjusted to achieve the required linear response.
Patent GB-1525675-A (GB)
Title: Cleaning semiconductor wafers
IPC: H01L21/306
Filed: 1977-02-24
Abstract: 1525675 Cleaning silicon INTERNATIONAL BUSINESS MACHINES CORP 24 Feb 1977 [25 March 1976] 07820/77 Heading C1A The surface of a silicon wafer polished with a metallic oxide or silica-based polishing medium is cleaned by converting it to a hydrophilic state by oxidation with an alkali metal hypohalite, or an alkali metal dichromate or permanganate in sulphuric acid. Thereafter, the hydrophilic surface may be treated with an ammonium hydroxide solution, and, where the polishing medium is silicabased, the hydrophilic surface re-converted to a hydrophobic state by treatment with a hydrofluoric acid solution; re-treatment of the surface with the oxidizing agents results in the re-establishment of a hydrophilic state.
Patent GB-868114-A (GB)
Title: Casting moulds for the aluminothermic welding of rails
IPC: B22D19/04
Filed: 1960-03-04
Abstract: 868,114. Casting composite articles. ELEKTRO-THERMIT G.m.b.H. March 4, 1960 [March. 16, 1959], No. 7826/60. Drawings to Specification. Class 83 (1). Those portions of a mould for the aluminothermic welding of rails, which in use will lie adjacent the welds on either side of the web, or on the rail head, or both, consist of silicon carbide, which may be in the form of solid bodies inserted or tamped into a conventional moulding material.
Patent GB-616817-A (GB)
Title: Improvements relating to steam boilers
IPC: F22G5/04
Filed: 1946-03-13
Abstract: 616,817. Steam superheaters. FOSTER WHEELER, Ltd., and SAMPSON, W. March 13, 1946, No. 7848. [Class 123 (iii) ] In a steam boiler, a superheater 11a or a reheater 11b, or both, is or are each housed in a separate chamber 12a, 12b respectively which is connected to the boiler furnace by a passage 15 and has an associated variable-delivery suction fan, not shown, adapted to withdraw gases direct from said furnace, by-passing the steam-generating tubes 5, in quantities controllable independently of the draught conditions in the boiler proper. The chambers 12a, 12b have gas outlets 14a, 14b which lead to the boiler outlet 7, locating an economizer 8, through a common inlet 17. Specification 569,094 is referred to in the Provisional Specification which describes also a modification wherein a pair of like boilers are arranged side by side
Patent GB-1185143-A (GB)
Title: Improvements in Hydrofoil Craft
Inventor: STACEY CHRISTOPHER MAURICE
IPC: B63B1/28
Filed: 1966-02-23
Abstract: 1,185,143. Hydrofoil craft SOUTHERN HYDROFOILS Ltd. 20 March, 1967 [23 Feb., 1966], No. 7921/66. Heading B7A. A catamaran craft comprises on each hull 1 a hydrofoil 5 pivotable about a horizontal axis 4 upon a strut 3 adjacent the bow 2 and a pivoted predictor-arm 7 coupled by mechanical, hydraulic and/or electrical means (not shown) to said hydrofoil, a planing member 11 beneath a streamlined part 10 of the predictor arm being pivotal vertically and coupled to said arm by spring-loading means 15 so that minor undulations in the surface of the water do not affect the hydrofoil 5. The predictor arm is pivoted at 6 and controlled by damping means 12. Retracting means 14 lift the predictor arm to the position shown in phantom lines in Fig. 1 when the arm is not in use. The damping and retracting means may be constituted by a single hydraulic piston-and-cylinder device or by individual fluid-operated piston-and-cylinder devices as shown. It is indicated that the invention is also applicable to a single-hull craft, a trimaran or a " sea sled " having one hull and at least two bows and two keels
Patent GB-249866-A (GB)
IPC: F28D19/04
Filed: 1926-03-24
Abstract: 249,866. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts Ges.). March 25, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Regenerators. - A rotary air or gas preheater comprises parallel discs e mounted on a rotary shaft d and adapted to effect a transfer of heat between the air and gases flowing through the pipes b, b<1>, c, c<1>. Specifications 185,385 and 186,558 are referred to.
Patent GB-911678-A (GB)
Title: Improvements in and relating to air extraction from closet pans and like appliances
IPC: E03D9/052
Filed: 1960-03-08
Abstract: 911,678. Ventilating closets. DAVID, H. Nov. 9, 1960 [March 8, 1960], No. 8082/60. Class 26. An extraction device such as a fan A for extracting odours directly from a lavatory pan or pans or chemical closets, urinals or invalid closets directly to the atmosphere, permitting normal flushing to occur in waterclosets and in the case of non-flushing systems and receptacles preventing reversal of the air in the extraction duct has incorporated in or with the device an air-actuated non-return valve C sensitive to light pressure or a series of such valves with a number of receptacles. The fan A is connected to the pan of a water closet by a pipe B and the odours are expelled to atmosphere by a pipe E. Two methods of attaching the fan are mentioned.
Patent GB-1324158-A (GB)
Title: Mill for treating sticky or dry products
IPC: B02C15/16
Filed: 1972-02-22
Abstract: 1324158 Edge-runner mills; roller-and-ring mills CARLE & MONTANARI SpA 22 Feb 1972 [15 Dec 1971] 8105/72 Heading B2A A mill comprises a stator A, a rotor B, rollers C mounted on the rotor for rolling engagement with the stator, inside wall 5 a material inlet and a material outlet the transverse cross-section at the outlet (taken across the axis from inlet to outlet), being greater than a corresponding cross-section at the inlet. This cross section increases between inlet and outlet either continuously Figs. 2 and 3, or stepwise Fig. 1. The stator may include passages 4 for a heating fluid. Direction of feed is indicated by arrows. A fourth embodiment includes a stator having annular concentric recesses and roller hangers 11 on a flat rotor Fig. 4.
Patent GB-540984-A (GB)
Title: Rechargeable dry battery
IPC: H01M10/36
Filed: 1940-05-06
Abstract: 540,984. Batteries. DANZIGER, F. May 6, 1940, No. 8120. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 25, 1940.] [Class 53] In a method of making a rechargeable dry battery a porous spacer of cloth, wood &c. is moistened with electrolyte and then pressed into intimate contact with the negative electrode. The porous member 19 is pressed into firm contact with the zinc can 20 before the carbon 11 and depolarizer 17 are inserted, the whole being surrounded by a cardboard container 32 and an additional cap 33. An air space 34, which may be filled with sand or sawdust, is formed between wax &c. sealing 35 and spacer 36 and sleeve 39. Porous spacers 42 are placed at the bottom of the zinc can but these may be formed in one with the member 19. The depolarizer may be contained in a cloth &c. container separate from the member 19. The zinc may be sprayed to form the electrodes. The Specification as open to inspection under Sect. 91 states that if the negative electrode is made of spongy zinc within an insulating container, the porous member 19 may be omitted. This subject-matter does not appear in the Specification as accepted.