baber/WOPTO huggingface dataset:
Patent GB-1378210-A (GB)
Title: Shears or other tools having clearance adjusting means between  pivotal cooperating members
IPC: B23D29/02
Filed: 1972-08-14
Abstract: 1378210 Hand shears J WISS & SONS CO 14 Aug 1972 [17 Jan 1972] 37823/72 Heading B4B [Also in Division E2] A tool, e.g. hand shears, having two pivotably co-operating members 11, 12 comprises a pivot stud 40 having threaded portions 40a, 40b and an intermediate portion 40c including a spacing element 39 and nuts 41, 42 for holding the members 11, 12 on the stud 40. The element 39 enters a recess 47 in at least one member 11 of the pair and engages the other member 12 to define a spacing adjustable by screw-threaded engagement of the stud 40 and member 11. The nut 42 acts on the member 12 through a washer 46, e.g. of p.t.f.e.-coated steel, and wrench flats 43 on the stud 40 facilitate adjustment.
Patent GB-1026780-A (GB)
Title: Process for the production of colour images by the silver dyestuff bleaching method
IPC: G03C7/28
Filed: 1963-09-26
Abstract: 3 - (41 - Sulphophenylazo - 4 - hydroxybenzo-[a] - phenazine - 2 - sulphuric acid is obtained by coupling diazotized 1-amine benzene-4-sulphonic acid with 2-phenylamino-5-hydroxy-napthalene-7-sulphonic acid, cyclizing the product to give 4-hydroxybenzo[a]-phenazine-2-sulphonic acid which is coupled with diazotized 1-aminobenzene-4-sulphonic acid to give the desired product.ALSO:3 - Amino - 4 - hydroxybenzo[a] - phenazine - 2 - sulphonic acid is obtained by splitting off the sulphophenylazo group of 3-(41-sulphophenylazo) -4-hydroxybenzo[a]-phenazine-2-sulphonic acid with sodium hydrosulphite.  4-Hydroxybenzo[a]-phenazine -2-sulphonic acid is obtained by cyclizing the product obtained by coupling diazotized 1-aminobenzine-4-sulphonic acid with 2 - phenyl - amino - 5 - hydroxynaphthalene - 7 - sulphonic acid.
Patent GB-1091486-A (GB)
Title: Single-step process for preparation of uranium dioxide from uranium hexafluoride
IPC: C01G43/025
Filed: 1965-09-06
Abstract: UF6 is converted to UO2 by reacting it with a stoichiometric excess of a gaseous mixture of hydrogen and either oxygen or water vapour at a temperature > 1100 DEG  C. and a pressure \sO 20 torr.  To produce sinterable powder, the hydrogen is preferably in at least 4 times, e.g. 15-20 times the stoichiometric proportion, and the O2 or water vapour in at least 1.5 times, e.g. 8-10 times, the gases being premixed at 800-1000 DEG  C., e.g. 900-1000 DEG  C. at a pressure < 20 torr. whereby solid particles, probably UO2F2, are formed, and reacting at \sP 1100 DEG  C., pref. 1200-1500 DEG  C. at a pressure of < 20 torr.  A solid deposit is produced when the H2 is in at least 5 times, and the O2 or water vapour in at least 1.5 times the stoichiometric amounts at \sP 1100 DEG  C., e.g. 1200-1500 DEG  C., and < 10 torr., the UO2 being deposited on a refractory surface e.g. alumina.  For a smooth-surfaced body, the H2 is in 5-20 times, and the O2 or water vapour is in 1.5-10 times the stoichiometric amounts, and for a tubular body, the former used is the inner surface of a refractory tube. Crystalline UO2 is produced if the H2 is in 30-90 times, and the O2 or water vapour is in 10-90 times the stoichiometric amount.  The product has a low fluorine content and may be used, in tubular form, as a nuclear fuel element. missing page 174
Patent GB-1131842-A (GB)
Title: Improvements in or relating to sintering machines
IPC: C22B1/14
Filed: 1965-09-06
Abstract: 1,131,842. Controlling sintering machines. METALLGESELLSCHAFT A.G. 6 Sept., 1965 [5 Sept., 1964], No. 38067/65. Heading F4B. [Also in Division G3] In a control system for the speed of the conveyer of a sintering machine, in which the location of the maximum of the temperature curve along the conveyer is determined by -feeding signals representing the temperatures in suction-boxes n, m, I at the discharge end of the conveyer to a computer 10 and using the difference between this location and a desired location set at 12 to control the speed of the conveyer, an additional control signal representing the rate of change of temperature in an intermediate suction-box i, h or g is fed to the regulator controlling the motor driving the conveyer. The appropriate suction-box i, h, or g, depending on the desired temperature curve, is selected by a switch 17. When the desired temperature curve is established, the speed of the conveyer may be controlled solely by the rate of change of temperature signals.
Patent GB-817112-A (GB)
Title: An adjustable cam or cam assembly, particularly for use in automatic zig-zag sewing machines
IPC: D05B19/00
Filed: 1956-12-14
Abstract: 817,112. Sewing machines. MESSERSCHMITT A. G. Dec. 14, 1956 [Jan. 14, 1956], No. 38204/56. Class 112 [Also in Group XXIV] An adjustable cam for stitch control mechanism of a zig-zag sewing machine such as described in Specification 803,394 comprises a disc 13, Fig. 2, mounted on a shaft 4 and provided with a number of radial slots 14 to receive cam elements 15. These cam elements are urged inwards by springs 32 or 35 and moved outwards by tappets 24 which are engaged by a keylike setting member 21 inserted in a bore of the shaft 4. In Fig. 1 a set of four such cams is shewn at 8 for controlling the stroke of the feed dog and another set of four cams at 9 for controlling the width or position of the stitch. These sets of cams are controlled by key-like setting members 22 and 21 respectively which may be changed to produce different patterns. One non-adjustable cam 10 is also shown for controlling the zig-zag stitch mechanism. The key-like setting members may be retained by click catches 69, 70 and may be shaped so as to slip easily into the shaft bore and not actuate the tappets 23 until a final rotation is given which also locks it in position. Alternatively, the keylike setting member may be inserted and resiliently held in a non-operative position until a final axial movement is given. In another arrangement the key-like setting member must first be inserted to an inoperative position in a sleeve member with radial plungers which is then inserted in the shaft bore. The key is then moved further axially into the sleeve to move the said plungers radially to actuate the tappets of the cam elements.
Patent GB-908611-A (GB)
Title: Process for the production of alkyl ammonium compounds of nitrophenols
Filed: 1960-11-09
Abstract: The invention comprises alkylammonium or dialkylammonium salts of 2:6-di-tert-alkyl-4-nitrophenols, the tert-alkyl groups containing up to 6, and the other alkyl groups up to 20 carbon atoms.  The salts are prepared directly from the phenol and amine by reaction in an inert solvent.  The n-butyl, cyclohexyl, n-dodecyl and di-n-propyl-ammonium salts of 2:6-di-tert-butyl-4-nitrophenol are specified.  Specifications 825,420 and 872,184 are referred to.ALSO:Pesticidal compositions comprise alkylammonium or dialkylammonium salts of 2 : 6-ditert-alkyl-4-nitrophenols and a solid or liquid carrier or diluent.  The alkyl groups in the ammonium cation contain up to 20, and the tert-alkyl groups contain up to 6 carbon atoms.  The n-butylammonium salt of 2 : 6-di-tert-butyl-4-nitrophenol is mixed with the same amount of acetone and with 50 wt. per cent of nonylphenol polyglycol ether and the premixture diluted with water to concentrations of 0.02 and 0.004%.  Specifications 825,420 and 872,184 are referred to.
Patent GB-936087-A (GB)
Title: Polynitroolefins and their method of preparation
Inventor: LINDEN GUSTAVE BENJAMIN
IPC: C07C205/03
Filed: 1960-11-10
Abstract: Polynitro olefins of the formula:-  <FORM:0936087/IV(a)/1> wherein R is an alkyl or nitro radical and R1 is an alkyl radical, are polymerized.ALSO:The invention comprises polynitro-olefins of the formula:-<FORM:0936087/IV(a)/1> wherein R is an alkyl or nitro radical and R1 is an alkyl radical.  The compounds are prepared by dehydrating a nitro alcohol of the formula:- <FORM:0936087/IV(a)/2> wherein R is an alkyl or nitro radical and R1 is an alkyl radical. The compounds are prepared by dehydrating a nitro alcohol of the formula:- <FORM:0936087/IV(a)/3> with phosphorus pentoxide, phosphoric acid, concentrated hydrochloric acid or concentrated sulphuric acid.  The dinitro olefins of the above formula may be oxidized to the corresponding dinitro carboxylic acids or may be reacted with bromine or 2,4-dinitrobenzene sulphonyl chloride.
Patent GB-1431181-A (GB)
IPC: H04R1/02
Filed: 1972-08-22
Abstract: 1431181 Laminated products Y KAWAHARA 22 Aug 1972 39135/72 Heading B5N [Also in Division H4] A front dressing panel 1 for a loud-speaker cabinet, for allowing sound to emerge, comprises a sheet 2 of mouldable plastics material (e.g. acrylonitrile-butadiene-styrene copolymer, polystyrene or P.V.C.) having perforations 3 within the range 1 to 10 mm., the total area of the perforations 3 amounting to 40 to 70% of the total area of the perforations 3 amounting to 40 to 70% of the total area of the sheet 2 (including that of the perforations), and a dressing cloth 4 covering one surface of the sheet 2 and bonded thereto under heat and pressure by means of a synthetic resin bonding agent (e.g. vinyl acetate or acrylic resin). Cloth 4 is a decorative woven or non-woven or braided cloth. The cloth 4 may be inserted into the perforations 3. The sheet 2 may be moulded to a rounded or corrugated shape (Figs. 5, 7, not shown).
Patent GB-844185-A (GB)
Title: Improvements in or relating to boiler feed pump installations
Inventor: RANDELL FORREST THOMSON
IPC: B01D19/00
Filed: 1957-12-17
Abstract: 844,185. Feedwater supply systems for steam boilers. WEIR Ltd., G. & J. Dec. 16, 1958 [Dec. 17, 1957], No. 39186/57. Class 123(2) [Also in Group XXIX] In a boiler feed pump installation including in series a condenser 1, a condenser extraction pump 2, a deaerator 5 and a boiler feed pump 6 located below the deaerator, a non-return valve 11 in a bypass line 8 permits feed-water to by-pass the deaerator and flow direct from the extraction pump 2 to the feed pump 6 in the event of an abnormal loss of static head or vapour pressure occurring in the deaerator, this vapour pressure normally maintaining sufficient pressure at the suction of the feed pump 6 to prevent flow through the non-return valve, under the control of a regulating valve 12 intercalated in a branch steam line 13 to the deaerator which is controlled by means responsive to the pressure of water discharged by the extraction pump. The regulating valve 12 is actuated by a spring-loaded diaphragm 15, Fig. 2, which is subject to an actuating air pressure delivered through a restriction 23 and controlled by a hinged leak-off valve 28 which is responsive through a bellows 34 to the delivery pressure of the extraction' pump 2 via a conduit 33, in a sense to cause opening of the valve 12 on rising delivery pressure of this pump. The leak-off valve 12 is also responsive, in the opposite sense through a conduit 31 and bellows 30, to the vapour pressure in the deaerator. A booster pump 4 is fitted between the extraction pump 2 and the deaerator 5.
Patent GB-1108319-A (GB)
Title: A manually operable toy
IPC: A63H13/06
Filed: 1965-09-15
Abstract: 1,108,319. Puppets. INGENIS S.p.A. 15 Sept., 1965 [30 Sept., 1964], No. 39378/65. Heading A6S. A toy simulating a boxing match comprises articulated puppets 12 on supports 11 having means 14', 17 to move the arms 14, pivoting means 10 to incline the puppets from the vertical, means to impart curved' horizontal motion on pivotal supports 9, and means to impart horizontal rectilineal motions consisting of pivotally connected arms 7 and 5 mounted on fixed pivots 4. The supports 9 carry rubber buffers 33 mounted on the arms 30 to prevent collisions between the puppets. Linkages between parts 13 and 14 of the arms cause the arms to straighten when moved forwardly by lever controls 14'. Pressure sensitives switches may 'be installed at vulnerable points of the body to register hits electrically on a score board 3.
Patent GB-1131815-A (GB)
Title: Improvements in or relating to rolling bearings
IPC: F16C19/16
Filed: 1966-09-02
Abstract: 1,131,815. Bearings. EISENWERK ROTHE ERDE G.m.b.H. 2 Sept., 1966 [13 Sept., 1965], No. 39422/66. Heading F2A. A rolling bearing comprises a wire race ring which has a recessed or flat raceway formed by drawing the wire, the drawn wire then being bent into a ring with the raceway at the required angular orientation to the bearing axis. The raceway is concave in the ball bearings of Fig. 6 (not shown), and plane in the roller bearings of Fig. 7 (not shown).
Patent GB-958758-A (GB)
Title: Contact protection circuit
IPC: H01H9/54
Filed: 1962-10-18
Abstract: 958,758. Arcing preventing in switches. STANDARD TELEPHONES & CABLES Ltd. Oct. 18, 1962 [Oct. 19, 1961], No. 39433/62. Heading H2B. When the contacts m, f 2  of a change-over contact device are closed, the reactive elements of a resonant circuit comprising inductance L, capacity C 1  and resistance R 1 , Fig. 1, become charged. The oscillatory period of this circuit is so related to the speed of movement of the moving contact m that when this contact is changed over from fixed contact f 2  to fixed contact f 1 , its potential is changed from that of contact f 2  to that of contact f 1  by the time the contact m engages the contact f 1  and the contacts m, f 1  close without arcing. In Fig. 2 (not shown), a further capacity and a further resistance are connected across the contacts m, f 2  so that arcing is prevented when the contacts m, f 2  so that arcing is prevented when the contacts m, f 2  close. In Fig. 3, the inductances L 1 , L 2  are the windings of a transformer T and the circuit constants are such that when the moving contact m separates from one fixed contact the voltage induced at the other fixed contact becomes equal to that of the moving contact in the time taken for the moving contact to travel from one fixed contact to the other.
Patent GB-1479082-A (GB)
Title: Aircraft ground proximity warming system
IPC: G01C21/00
Filed: 1975-09-26
Abstract: 1479082 Aircraft warning indicators SUNDSTKAND DATA CONTROL Inc 26 Sept 1975 [3 Oct 1974] 39458/75 Heading B7W An aircraft ground proximity warning system comprises means for combining, according to predefined criteria, a signal hÀ R  representing the aircraft's rate of change of altitude over the ground and a signal hÀ R  representing the aircraft's altitude over the ground to generate a warning signal 26 indicating the aircraft's approach to the ground, and speed compensating means V A  for varying said predefined criteria as a function of aircraft speed to advance the generation of the warning signal with increased aircraft speeds. A signal hÀ R  representing aircraft altitude above ground and a signal hÀ B  representing aircraft barometric altitude are respectively differentiated by rate circuits 14 and 16, one to produce the signal hÀ R  and the other to produce a rate signal hÀ B . The signal hÀ R  is fed to a rate limiter 18 the output hÀ RL  of which is fed to a filter 20 which receives also the rate signal hÀ B . The combined altitude rate output hÀ C  is compared in a summing junction 24 with the altitude above ground signal hÀ R  and whenever the output of the junction 24 is positive the alarm signal 26 will operate. To ensure that the warning time will be shortened with increased aircraft speed the rate limiting circuit 18 is controlled by an input on line 38 which is a function of air speed VÀ A , thereby increasing the limiting amplitude of the signal h R  as a function of aircraft speed. A circuit is described (Fig. 5, not shown) for increasing the rate limitation within rate limiter 18 and this is subject to a signal from a landing gear sensor 54 which imposes a limitation on the amplitude of the hÀ R  signal when the undercarriage is lowered.
Patent GB-877237-A (GB)
Title: Process for removing iron carbonyl compounds from oxo reaction products
IPC: C07C27/22
Filed: 1957-12-19
Abstract: Oxo reaction products containing iron and cobalt carbonyl compounds are purified by oxidising at such a pH and with such an amount of a gas containing free oxygen that a trivalent cobalt salt is formed, sufficient water being present to keep iron and cobalt salts in solution, and separating said solution from the oxo reaction products, e.g. by distilling in the presence of an acid.  Oxygen or air is preferably passed through the crude reaction mixture.  The pH generally is from 3 to 9, preferably 4-6, and adjustment may be made e.g. with sulphuric acid or sodium bicarbonate.  The water may be that already present in the reaction products.  The formation of cobaltic salts is indicated by a green colour in the solution. Examples are given of the treatment of reaction products formed with ethylene and propylene and a comparative example refers to reaction products formed with diisobutylene; other olefines specified are butylene, isobutylene, butadiene, pentene, heptene, ethylhexene, octene, tripropylene, dodecylene, triisobutylene, hexadiene, cyclohexene, pinene, camphene and dipentene.  Cobalt carbonyl catalysts mentioned are Co2(CO)8 and HCo(CO)4.  Specifications 667,824, 779,388 and U.S.A.  Specification 2,604,491 are referred to.ALSO:Iron and cobalt salts are recovered from oxo reaction products containing iron and cobalt carbonyl compounds by oxidising at such a pH and with such a proportion of a gas containing free oxygen that a trivalent cobalt salt is formed, sufficient water being present to keep iron and sobalt salts in solution, and separating said solution from the oxo reaction products, e.g. by distilling in the presence of an acid.  Oxygen or air is preferbaly passed through the crude reaction mixture, e.g. in a tube filled with distributing bodies.  The process may be made continuous, e.g. by employing two vertical tubes interconnected at top and bottom into one of which the air and crude reaction products are introduced, purified material being removed from the other tube, or in a single tube, by admitting air from below and withdrawing organic and aqueous phases at the top and bottom respectively.  The pH generally is from 3 to 9, preferably 4-6.  Examples describe the adjustment of pH with sulphuric acid and with sodium bicarbonate; water may already be present in the reaction products in sufficient quantity.  The formation of cobaltic salts is indicated by a green colour in the solution.  Specifications 667,824, 779,388 and U.S.A.  Specification 2,604,491 are referred to.
Patent GB-843030-A (GB)
Title: Improvements in or relating to means for use in the amusement and education of children
Inventor: TACEY CHARLES ARTHUR
IPC: G09B17/00
Filed: 1957-12-19
Abstract: 843,030. Education appliances. PHILIP & TACEY Ltd. Dec. 18, 1958 [Dec. 19, 1957], No. 39570/57. Class 146(2). An appliance to expedite the ability to read, comprises a page or a series of pages 10 in book or loose sheet form, each bearing pictures 12 and a blank space 13 into which a strip 14, having a caption ,may be stuck. The strip 14 may be composed of polyvinyl chloride and is self adhesive to the pages 10 which are polished or coated with plastic lamination or varnished for this purpose. To prevent unwanted adhesion between one strip 14 and another the printed faces may be treated as to be non- adherent, or blank leaves 15 provided between pages.
Patent GB-1105111-A (GB)
Title: Improvements in dental materials
Inventor: MCLEAN JOHN WALFORD
IPC: A61K6/06
Filed: 1963-10-08
Abstract: A dental material consists of an unfired mixture of 30-70% of reinforcing refractory particles sized between <200m  and <10m , of titania, alumina, zirconia, singly or together, with a matrix forming material of felspar, borosilicate glass or a dental porcelain.  The material is shaped and fired at 850-1400 DEG  C. in air or in vacuo to fuse the matrix material without affecting the reinforcing material.
Patent GB-1234978-A (GB)
Title: Hydraulic presses for pressing artificial stone
IPC: B28B17/00
Filed: 1968-08-23
Abstract: 1,234,978. Electric correspondence control systems. BRUCK, SCHLOSSER & CO.; G.m.b.H. Aug.23, 1968 (April 24, 1968], No.40340/68. Heading G1N. [Also in Division G3] A hydraulic press for making artificial stone comprises a ram 1 and a pump 4 for supplying fluid to reciprocate the ram, the output of the pump being controlled by a signal from an amplifier 8 responsive to the difference between the desired and actual positions of the ram. The circuit between the pump 4 and the ram 1 includes backpressure valves 4<SP>1</SP> and safety valves 2<SP>1</SP>, 31 to give the ram equal speeds in its two directions of movement. A second pump 16 supplies a cylinder 6 through a valve 12 to adjust or reverse the output from the pump 4 in accordance with signals applied to a servo-drive 11 from the amplifier 8. Feedback signals from the ram 1 and the cylinder 6 are fed to the amplifier 8 from potentiometers 7, 10 for comparison with a signal corresponding to the desired ram position which is applied at 9 and obtained from a programmed circuit.
Patent GB-1151348-A (GB)
Title: Method of Forming a Weld under Pressure between adjacent Metal Portions
IPC: B23K13/04
Filed: 1966-09-09
Abstract: 1,151,348. Welding by pressure. AMERICAN MACHINE & FOUNDRY CO. 9 Sept., 1966 [21 April, 1966; 5 May, 1966], No. 40453/66. Addition to 1,150,770. Heading B3R. In welding two metal portions, the portions are held fixed with respect to each other and with faces thereof extending longitudinally in parallel directions, an elongated metal filler member is positioned in contact with the portions in the region of the faces, high frequency current is caused to flow in the filler member and portions to soften them and the filler member and portions are subjected directly to a mashing force to weld the portions and filler member together. Two sheet metal strips 25, 26, Fig. 1, which may be the end portions of large coils of strip are clamped in abutting relation by jaws 29, 29<SP>1</SP>, 30, 30<SP>1</SP> over a back-up bar 28, high-frequency current from a source 31 is supplied by contacts 32, 33 at or adjacent the seam line and a metal strip 34 or foil preferably of the same metal as the strips 25, 26 is fed to rest on the seam line to be engaged by the contacts 32, 33. A pressure roll 35 mounted on a frame carrying the contacts is moved along the seam line or the workpieces are moved relative to the roll 35, which may be used as a contact, to compress the foil strip against the seam line. The strip may be forced down into the surface of the strips 25, 26 as at 34<SP>1</SP>, Fig. 3. Conductive tabs 38, 39 may be employed to ensure that the weld extends to the ends of the seam line. The foil strip may be supported beneath the seam line, i.e. remote from the roll 35 or the filler may be in the form of wire fed beneath the roller 35 or foil or wire may be applied to both the upper and lower surface. To prevent overheating of the filler wire it may be fed through an insulated tubing. Flat or concavo-convex strips or the edges of a length of tubing having depending lips which are abutted and a length of filler wire is fed to the shallow groove formed by the abutting lips which are held together by clamps or rolls. In welding a workpiece 61, Fig. 14, on edge to a workpiece 62, a triangular filler strip 63 is fed into the corner between the workpieces and after being heated by the contact devices the assembly is pressed to a roll 64 reacting against a roll 65. Two such strips may be fed into the corners above and below workpiece 61 and the strip may be of circular section. In welding bevelled edges 71, 72, Fig. 18, of workpieces 73, 74, a filler strip 70 of trapezoidal cross-section is fed to be welded between the spaced edges 71, 72. Such welds may be around pipes, tanks or submarine hulls. In a further embodiment a filler piece of inverted T-section is fed between parallel edges and concave pressure rolls may be used to shape the ends of the filler piece. Induction heating may be used and ferrous metal or aluminium and copper may be welded. The filler may be coated with flux, e.g. borax.