baber/WOPTO huggingface dataset:
Patent GB-1443107-A (GB)
Title: Process and apparatus  for the production of phosphorus penta sulphide
IPC: C01B25/14
Filed: 1974-06-17
Abstract: 1443107 Phosphorus pentasulphide HOECHST AG 17 June 1974 [19 Sept 1973] 26719/74 Heading C1A [Also in Division B1] Phosphorus pentasulphide is prepared from the elements at elevated temperature in a reactor through whose lateral walls the reaction temperature is controlled by heat exchange with a substance maintained at a suitable temperature; the base of the reactor is cooled by heat exchange with a system actuated separately and independently of the system surrounding the lateral walls of the reactor. In the preferred embodiment shown in Fig. 1, phosphorus and sulphur are introduced into the reactor (1) via inlets 4 and 5, with removal of the product via outlet 6. The reactor is provided with a jacket (2) through which passes a heat exchange medium, while its bottom is in contact with a heat exchange medium supplied by either of two alternative nozzle systems (see also Fig. 2, not shown).
Patent GB-1480831-A (GB)
Title: Inhibiting deposits in aqueous systems using polyacrylate-phosphonic acid treatment
IPC: C23F11/10
Filed: 1974-06-17
Abstract: 1480831 Treating water CHEMED CORP 17 June 1974 26817/74 Addition to 1,208,827 Heading ClC [Also in Division C7] Water is treated to inhibit the deposition of scale and sludge by adding thereto from 0À1 to less than 2 p.p.m. of a mixture of (a) an acrylic acid, or methacrylic acid polymer or copolymers thereof and water-soluble salts thereof, said polymers having an average M.wt. of 500- 1,000,000 and (b) a polyphosphonic acid of formula wherein m is an integer from 1-10, R 1  is H of C 1-6  alkyl, R 2  is OH, H or C 1-6  alkyl, R 3  is C 1-10  alkyl, benzyl or phenyl and R<SP>1</SP> is C 1-10  alkylene or a water-soluble salt thereof.
Patent GB-1172459-A (GB)
Title: Carry system for calculators
IPC: G06C15/26
Filed: 1967-06-09
Abstract: 1,172,459. Transfer mechanism. CITIZEN WATCH CO. Ltd. 9 June 1967 [18 Nov., 1966], No. 26861/67. Heading G4D. Racks 1 of a calculating machine, after being lifted differentially in known manner under the control of key-operated stops 2, have drive wheels 8 or 9 of a totalizer brought into engagement with them before the racks are driven down by a bar 3 to a position one step past zero position. In normal operation the racks then return to zero position to correct the individual denomination entries, after which the drive wheels of the totalizers are disengaged. If, however, a transfer abutment 8a or 9a passes through zero then it rocks the upper part of an associated composite lever 11 to the left to latch under a bar 10, so swinging a lever 22 to the left so that its end 24 prevents the rack 1 of higher denomination rising under spring action until after the drive gear has been disengaged. Multiple transfer is thus possible. Levers 11, 22 are restored by bails 21, 33 before the next cycle.
Patent GB-1094398-A (GB)
Title: Hydraulic control valve
IPC: F15B13/06
Filed: 1965-06-24
Abstract: 1,094,398. Fluid-pressure servomotor systems. BORG-WARNER CORPORATION. June 24, 1965 [June 25, 1964], No.26882/65. Heading G3P. A spool valve, e.g. B, for controlling a piston- and-cylinder motor has means for returning the spool to the "neutral" position when the operating fluid-pressure increases due to the motor piston reaching the end of its stroke. Spool B can be set to allow pressure fluid to pass from an inlet 80, through chambers 69, 26b and 27b to an outlet 87 feeding the motor. Passageways 76b and 75b in the spool convey fluid at operating pressure to act on a pilot valve 49b. Upon a pressure increase valve 49b is moved to open a port 50b and allow fluid to enter the chamber 51b formed between concentric sleeves 43b and 44b which are slidable relative to each other, to release a detent (not shown) and allow spring 45b to move spool B leftwards to the "neutral" position. Two or more valve spools may be located in one valve housing.
Patent GB-757920-A (GB)
Title: Improvements in or relating to vacuum pumps
Inventor: POWER BASIL DIXON
IPC: F04C28/28
Filed: 1953-09-30
Abstract: 757,920. Rotary pumps. EDWARDS & CO. (LONDON), Ltd., W. Oct. 7, 1954 [Sept. 30, 1953], No. 26883/53. Class 110(2) [Also in Group XXVIII] A rotary vacuum pump is provided with a pressure-actuated device on the outlet side which gives audible and/or visual warning when the pressure at the outlet rises above a pre-determined figure due to a leak or otherwise. As shown, the outlet 11 is provided with a small-bore tube 16 discharging gas to the atmosphere, a relief valve 14 which opens during the early (rough) pumping stage when large quantities of gas are being discharged and a diaphragm 19 which lifts under increase in pressure in the outlet and closes contacts 21. This effects the warning and may stop an electric motor from driving the pump. Alternatively, the flexing of the diaphragm may break the contacts. During the early pumping phase the contacts 21 may be rendered inoperative by an additional switch or other means. The known sliding-vane pump shown has outwardly-sliding vanes 4, a duct 7 leading from a source to be evacuated and a delivery port 9 having a non- return valve 10. The diaphragm may be replaced by a collapsible bellows. Other forms of pumping means may be used.
Patent GB-769430-A (GB)
Title: Improvements in couplings for lagging irons in mines
IPC: B64D39/00
Filed: 1953-10-01
Abstract: 769,430. Mine gallery supports. GROETSCHEL, K. M. Oct. 1, 1953 [Oct. 1, 1952], No. 26944/53. Class 20(2)  Lagging means for mines connected by a tongue 1 and a fork 2 and pivoted together by a pin 3 are locked in various relative angular positions by a straight or a, as shown, curved locking member 12 slidable in the fork 2 and having an oblique rib 13, adapted to engage the tongue 1. The oblique rib 13 engages between ribs on the tongue 1. Heads 15, Fig. 7, at both ends, one of which is detachable prevents the locking member being removed and locking rings 16, the upper of which automatically assumes its operative position in engagement with a recess 17 prevents the rib 13 disengaging from the tongue 1. In a further modification the stops comprise pins sliding in bores. In a further modification, Fig. 7 (not shown) a projection on the tongue 1 engages between two ribs 13 on the locking member. In a further modification the rib 13, Fig. 8 (not shown) is of greater slope and is driven in by a transverse wedge passing through one of a number of slats in the locking member and engaging projections on the fork 2. The locking member, Figs. 10, 11 (not shown) is straight and has two oblique ribs, one at each end with a space between, and a spring catch holds it in middle position. The locking member, Fig. 12 (not shown) has two ribs at each end.
Patent GB-171843-A (GB)
Title: Improvements in golf caddie bags
IPC: A63B55/00
Filed: 1920-09-22
Abstract: 171,843. Butler, R. T., (trading as Crumpton & Co., T. H.). Sept. 22, 1920. Bags for golf clubs. -A golf bag is provided at the bottom with a stiffening band 2 of leather or the like, and with a cup-shaped shoe 4 formed by blocking or shaping a single piece of leather or like material. A leather disc 6 and studs 7 may be added.
Patent GB-791776-A (GB)
Title: Surface treatment of materials having a basis of an organic substitution derivative of cellulose
IPC: B29C59/10
Filed: 1955-09-21
Abstract: Surfaces of water-insoluble organic thermoplasts having a basis of an organic substitution derivative of cellulose are subjected to a corona electrical discharge to increase the receptivity of the surface to printing inks, adhesives and other coatings.  Cellulose acetates, including triacetates, cellulose propionate, butyrate, acetate-formate, acetate-propionate, acetate-butyrate and ethyl or benzyl cellulose may be treated.  A sheet of the material may be passed continuously through two parallel facing electrodes, one connected to a high voltage source and the other earthed to give a substantially uniform potential gradient.  Alternatively the inner electrode may be a cylinder around which the sheet moves, and the outer electrode may be a shell spaced from and concentric with the cylinder, such as is described in the parent Specification. Alternatively the electrodes may be in the form of wires or of a surface with a plurality of projecting points.  A sheet of dielectric, e.g. polyethylene or cellulose acetate, may be positioned between the electrodes.  The process may take place at atmospheric, super or sub-atmospheric pressure and in the absence of free oxygen in an inert gas, conveniently in a chamber which encloses the electrodes.  Examples describe the treatment of acetone-soluble cellulose acetate film containing diethyl phthalate plasticizer by exposing it to electrodes 1/16 inch apart, with an A.C. potential of 8000 volts at 60 cycles, the lower electrode being covered with a sheet of cellulose acetate.  The treated film is adherent to ink and nitrocellulose lacquer.
Patent GB-887765-A (GB)
Title: Process and apparatus for the rounding of injection bores of injection nozzles in particular the nozzles of compression-ignition engines
Inventor: NACK ALBERT
IPC: B24B39/00
Filed: 1960-08-04
Abstract: 887,765. Fuel injectors. L'ORANGE G.m.b.H. Aug. 4, 1960, No. 26999/60. Class 7(3). [Also in Group XXIII] A process for rounding the inner ends of injection bores of injection nozzles with which liquids are atomized, in particular for improving the discharge co-efficient of the bores in the nozzle element of compression-ignition engines, is characterized in that small steel balls, the number of which is different from that of the bores to be machined, are introduced into the space from which the bores emerge and are then thrown on to the inlet edges of the bores by means of a current of pressure medium introduced into said space. The balls may be of different diameters. Fig. 3 shows the effect of using six such balls, the radius r of the largest ball 7a being smaller than the radius R of the nozzle body 1 from which the nozzle bore 8 emerges, and the radius of the smallest ball being such that the ball cannot penetrate into the bore and block it. A desirable inlet curvature is thus obtained.
Patent GB-271627-A (GB)
Abstract: 271,627. Lindberg, A. May 3, 1926. Mechanical interrupters are provided with a rotary plate 1 carrying a pivoted fibre lever 9 to which is secured a metal holder 8 bearing the relatively movable contact 6. The lever 9 has a projection adapted to be engaged by fixed internal cams during the rotation of the plate 1 and is provided with a return spring 13 held at one end to a fixed point 14 and secured at the other by a screw 10 which passes through the fibre lever and engages a tapped hole in the metal holder 8 so completing the electrical connection between the spring and movable contact. The arrangement of the lever is such that the centrifugal force acting thereon assists the engagement of the movable contact 6 and fixed contact 7 which is carried by an adjustable bent arm 3 formed as shown in Fig. 3 with tapered sides so that when the arm is clamped bv a screw 4 between the portions 16 of an insulated member 2 secured to the plate 1 the hammering of the movable contact 'cannot displace it from its adjusted position. Alternative forms of the holder 3 for the fixed contact are also described, the shank of the holder being for example conical or having a taper in its cross-section, suitable clamping plates or wedges being provided to secure it in position.
Patent GB-621066-A (GB)
Title: Improvements relating to mathematical computing instruments
IPC: G06E3/00
Filed: 1946-09-11
Abstract: 621,066. Photo-electric computing apparatus. FERRANTI, Ltd., BORN, M., FURTH, R. H., and PRINGLE, R. W. Sept. 11, 1946, No. 27243. [Class 40 (iii)] The invention is concerned with the evaluation of mathematical functions of the type qy = #<b>a #1(x) cos yx dx + #<b>a #2x sin yx dx and comprises modulating a constant light beam by a template 4 bearing two sets of parallel fringes, one set spaced sinusoidally and the other set spaced cosinusoidally, the two sets being contiguous along a straight line not parallel to the fringes and preferably at rightangles thereto. An image of the fringes is focussed on a narrow slit 7, so that as the template 4 is rotated, the light passing through one half of the slit varies as #cos yx dx and the light passing through the other half varies as #sin yx dx, a shutter 5 intercepting the light when the variations change over. A second template 14, 15 is transparent in portions corresponding to f1(x) and f2(x), each of which further modulates light from the appropriate half of slit 7, so that light modulated as #f1(x) cos yx dx and as #f2(x) sin yx dx falls on photo-cell 17 and is added therein to produce a current proportioned to qy which is applied through a D.C. amplifier 18 to the X plates of a cathode-ray tube 19 whose Y plates are fed with a time base derived from a coil 21 rotated in a strong magnetic field in synchronism with template 4.
Patent GB-1383352-A (GB)
Title: Sprockets or gears
IPC: F16H55/02
Filed: 1972-04-26
Abstract: 1383352 Making sprockets and gears; stamping BORG-WARNER CORP 26 April 1972 [29 June 1971] 27294/74 Divided out of 1383351 Headings B3A and B3Q [Also in Division F2] The subject-matter of this Specification is identical with that described in the parent Specification 1,383,351, but the claims are concerned with the constructions of the sprocket or gear.
Patent GB-616759-A (GB)
Title: Improvements in profile marking and reproducing apparatus
IPC: B25H7/04
Filed: 1946-09-12
Abstract: 616,759. Surface and outline gauges. TRUCAST, Ltd., and HERON, J. A. Sept. 12, 1946, No. 27398. [Class 106 (ii)] [Also in Group XX] Profile marking or checking apparatus comprising a clamp for the article whose profile is to be taken, a pointer adapted to follow the profile and a support for the pointer movable in the plane of or parallel to that of the profile to be checked and a scribe carried by the support is characterised in that the support for the pointer and the scribe rests on and is movable over a flat datum surface parallel to the plane of the profile and is not restricted by any mechanical linkage. The article whose profile is to be reproduced or checked, e.g. the turbine blade 1, is held by screws 4 in a clamp 2 which is adjustably mounted on a yoke 18 on a pedestal 15 upstanding from a base 16 which also carries the smoked glass 11 on which the reproduction is to be traced or checked. The flats 20 of the pedestal 15 may be marked with a suitable scale and a co-operating vernier may be provided on the jaws 19. The pedestal may be screw-threaded or furnished with rack-teeth co-operating with a jack nut or a pinion on the clamp. A pointer 5 adapted to follow the profile of the blade 1 is mounted on the support 6 which is movable in a plane parallel to that of the profile to be checked. A carrier 10 for the scribe 7 in the form of a leaf spring projects from the support 6 and may be raised upwards to move the scribe 7 clear of the panel 11. A wedge 12 is provided for locking the carrier 10 in its raised position. Both pedestal base 16 and pointer support 6 have accurately machined flat base surfaces adapted to rest or slide on a flat datum surface. Alternatively, the base 16 may provide the flat datum surface on which the support 6 rides.
Patent GB-976093-A (GB)
Title: Method for producing l-homoserine by fermentation process
Inventor: KINOSHITA SHUKUO
IPC: C12P13/06
Filed: 1961-07-28
Abstract: L-Homoserine is prepared by culturing at 24 DEG  to 37 DEG C. and a pH of 5.0 to 8.5 a strain of micro-organism which requires L-threonine but not also methianine, crystathianine or homocysterine for growth in a culture medium comprising L-threonine or materials containing L-threonine.  Preferred micro-organisms are Micrococcus glutamicus ATCC. Nos. 14296 and 14297. Biotin may also be added to the fermentation medium.
Patent GB-1018403-A (GB)
Title: Process for the preparation of esters
Inventor: CHRISTIE JOHN HENRY
IPC: C07C69/63
Filed: 1961-07-29
Abstract: C5- 14 monocarboxylic fatty acids are esterified with halogeno-xylenols and the products reacted with an alkylene oxide. In Example 3, approximately 14 mols. ethlene oxide is used per mol. of lauric acid/dichlorometaxylenol ester.ALSO:C5-14 Monocarboxylic fatty acids are esterified with halogeno-xylenols and the products solubilized by reaction with an alkylene oxide or by sulphonation. The products may be subsequently halogenated or nitrated.  In examples: (a) caproic, caprylic and lauric acids are reacted with dichlorometaxylenol and the products treated with ethylene oxide, (b) the product of reacting caproic acid with dichlorometaxylenol is sulphonated with oleum; perchlorometaxylenol is specified as an alternative reactant for caproic acid.ALSO:Germicidal and fungicidal compounds, which may be used in aqueous solution or in a solvent or in the form of an aerosol with propylene glycol and water, are the products of esterifying a C5-14 fatty acid with a halogeno-xylenol which have been solubilised by reaction with an alkylene oxide or by sulphonation with optional subsequent nitration or halogenation.
Patent GB-721339-A (GB)
Title: Improvements in or relating to synchronizing circuits for electric oscillators
IPC: H04N5/12
Filed: 1952-11-03
Abstract: 721,339. Automatic frequency and phasecontrol systems. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Nov. 3, 1952 [Nov. 6, 1951], No. 27615/52. Class 38 (4). The frequency of an oscillator 1, Fig. 1, is controlled in normal manner to agree with that of a reference voltage V by the output 6 of a phase comparison stage 2; and residual phase difference is substantially eliminated by applying at least part of the output voltage 6 to control the phase shift of a network 8 placed either in the reference voltage input or the oscillator output. The system may be used in a television receiver to control the frequency and phase of the line scanning oscillations, its effect being to annul the lateral shift of the picture which is liable to occur with drift of the natural frequency of the oscillator, or of the frequency of the synchronizing reference pulses. As shown in Fig. 1, the phase shift network 8 is interposed between the source of reference voltage V and the mixer or phase-comparer 2, and is controlled over a lead 10 by the mixer output; the controlled oscillator being coupled to a utilization circuit 3 by a line 9. In Fig. 2, the phase shifter 11 is interposed between the oscillator 1 and the load 3, and is controlled over a lead 12 by the mixer output. Fig. 3 is a circuit diagram corresponding to Fig. 2, in which synchronizing pulses 18 are applied to one grid of a phase-comparing tube 13, the other grid of which is fed from a multivibrator oscillator 14, 15. A condenser 45 connected between earth and a tap on the anode resistor 46 of the tube 14 ensures that the anode voltage of that tube increases substantially linearly when the tube is cut off. The anode lead of the tube 13 includes an integrating network 24, 25 and the anode voltage is fed through a resistor 47 to control the grid voltage of the tube 14 and thus to control the multivibrator frequency. The phase-shifting device corresponding to the network 11, Fig. 2, comprises a reciprocallycoupled pair of tubes 16, 17 operating as a flip-flop stage, with the grid 29 of the tube 17 excited on the one hand from the anode of the oscillator tube 14, and connected on the other hand to a tapping on the resistor 24 in the anode circuit of the phase-comparer 13. The tubes 16, 17 have a common cathode resistor 42, and the connection from the anode of the tube 17 to the grid of the tube 16 includes a resistor 30 and shunt condenser 31. Output of the form shown at 36 is taken from the anode of the tube 17. With proper choice of component values, and of the tap on the resistor 24, the leading edges 41 of the output pulses occur simultaneously with the synchronizing pulse input despite drift in the frequency of the synchronizing pulses 18 or of the oscillator 14, 15. The leading edges may be isolated by differentiation and gating, and used to control the phasing of the current in the load, which may be the line scan coils of a television receiver. Specification 615,886 is referred to.
Patent GB-538010-A (GB)
Title: Improvements in or relating to trailer vehicles
IPC: B60T11/10
Filed: 1939-10-10
Abstract: 538,010. Pipe joints. WOODCOCK. G. T., POULTENEY, R. J., and SULLIVAN. F. V. Oct. 10, 1939, No. 27632. [Class 99 (i)] [Also in Groups XXXII, XXXI and XXXIV] A pipe joint comprises a union nut 85 enclosing a metal washer 91 arranged between two packing discs 92, 93 and having a metal tube 94 which, in the coupled position shown, holds two spring-loaded ball valves 89, 90 off their seats. The tube 94 is serrated at its ends to afford a fluid passage.
Patent GB-917449-A (GB)
Title: Improvements in and relating to a bar or tube cropping machine
IPC: B23D45/18
Filed: 1961-07-31
Abstract: 917,449. Sawing. SOC. DE CONSTRUCTIONS MECANIQUES ET AERONAUTIQUES DE LA MAYENNE. July 31, 1961 [Nov. 26, 1960], No. 27656/61. Class 145. [Also in Group XXVI] A machine for sawing lengths from a tube A issuing from a shaping machine comprises a rotatable holder 3 on which one or more saws 1 with self-contained driving units 16 are mounted, a rotatable notched drum 4 for supporting the tube and a grooved roller 10 bearing resiliently on the tube and drivingly connected to the holder 3 and drum 4 so that the peripheral speeds of the drum and of the cutting edges of the saws about the axis of the holder are equal to or slightly greater than the linear speed of the tube. As shown, there are four saws 1 and the drum 4 is driven at half the speed of the holder 3 so that each saw during cutting penetrates one of a pair of notches 67 in the drum. A leafspring 46 holds the tube against the drum and a support roller on a fixed stand 53 engages the opposite side of the tube from the driving roller 10. The holder, the drum and the driving roller are mounted on a plate 38 hinged at 52 and acted on by a spring-loaded catch so that the roller is pressed yieldingly on the tube; the catch is pivoted at 59 on the stand 53 and can be swung out of a notch 55 in the plate 38 so that the plate can be pivoted to allow placing of the tube between the rollers. The driving units are turbines comprising a stator 27 with oblique or tangential holes 17 through which air in a chamber 18 impinges on radial holes 32 in the rotor 16. The chamber is supplied through passages 33, 35 an the hollow shaft on which the holder 3 rotates. Radial apertures 31 in the clamping plate 24 for the saw act as a centrifugal air brake on the turbine and an eccentric extension 28 on the stator extends through a bore in a boss 29 on the holder so that by rotating the stator the radial extension of the saw can be adjusted.
Patent GB-647216-A (GB)
Title: Improvements in or relating to the production of aluminium fluoride from calcium fluoride
IPC: C01F7/50
Filed: 1947-10-16
Abstract: Aluminium fluoride is produced by reacting the solution of hydrofluoboric acid produced by decomposing calcium fluoride (fluorspar) with an aqueous solution of sulphuric acid and boric acid at 60 DEG  C. to the boiling point, with at least one substance which forms an at least difficulty soluble sulphate, separating the precipitate, and treating the solution with aluminium hydroxide, e.g. at 60 DEG  C. to the boiling point, drying the precipitate up to 100 DEG  C., and finally heating to 300-500 DEG  C. The sulphate ions may be partly precipitated with lime, and after separation of calcium sulphate, the rest with barium carbonate at 60 DEG  C. to the boiling point of the solution, or with lead carbonate or benzidine at room temperature.  Benzidine may, however, be used to precipitate all of the sulphate ions.  Any lead in solution may be precipitated with hydrogen sulphide, the dissolved gas being later removed by blowing in air.  The precipitation of the aluminium fluoride may be seeded. Specifications 647,217 and 647,218 are referred to.