baber/WOPTO huggingface dataset:
Patent GB-1132399-A (GB)
Title: Photographic colour processing
Inventor: COHEN DAVID LIONEL
IPC: G03C7/30
Filed: 1966-07-25
Abstract: 1,132,399. Processing photographic silver halide colour material. ILFORD Ltd. Aug. 23, 1967 [July 25, 1966], No.33380/66. Heading G2C. In the processing of an exposed photographic light-sensitive silver halide colour material by colour development followed by bleaching and fixing or by bleach-fixing, stain or colour fog is reduced or eliminated by treating the colour developed material before or during the bleaching step with an aqueous solution of a compound of the formula:- wherein R 1  is hydrogen or alkyl, R 2  is hydrogen or alkyl and R 3  is aryl or substituted aryl. The material may be washed between each successive treatment and the bleaching step may be preceded by an acid stop bath treatment. The compound of the above formula may be included in the acid stop bath and/or the bleach bath and/or the bleach-fix bath. Compounds specified are 1-phenyl-3-pyrazolidinone and 4:4<SP>1</SP> -dimethly-1-phenyl-3-pyrazolidinone.
Patent GB-1090519-A (GB)
Title: Automatic analysis apparatus control means
IPC: G01N35/08
Filed: 1966-07-26
Abstract: 1,090,519. Detecting stoppages in analysis apparatus. TECHNICON INSTRUMENTS CORPORATION. July 26, 1966 [Aug. 17, 1965], No. 33484/66. Heading B1X. A manometer 64 is coupled to conduit means, which are between a sample off-take tube 16 and a pump 18 supplying the samples to the analysis means, for detecting stoppages, e.g. clots in the off-take tube 16. Individual liquid samples are disposed in containers 12 carried by an intermittently rotating tray 14 past the off-take tube 16, the sample being aspriated through the tube by a pump 18 having a plurality of pump tubes 26 to which the off-take tube 16 is coupled by junction means 28A, 28B and 28C. The manometer 64 has a movable first electrode 72 and a fixed second electrode 78 normally electrically connected by mercury 82 and maintaining an indicator 84 in its deactuated condition. Should a clot cause a stoppage in tube 16 the pressure will fall and consequent shifting of the mercury will electrically disconnect the electrodes and actuate the indicator 84. If the clot is upstream of the off-take needle a clamp 62' is pinched on tube 50, a clamp 62 is removed from tube 60 and the conduits are backflushed with fluid from a syringe 56.
Patent GB-433837-A (GB)
Title: Improvements in or relating to thermionic valve amplifiers
IPC: H03G3/22
Filed: 1934-11-22
Abstract: 433,837. Reproducing music. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London. (Assignees of Travis, C. ; 354, West Allen's Lane, Philadelphia, U.S.A.) Nov. 22, 1934, No. 33634. Convention date, Nov. 22, 1933. [Class 40 (iv)] [See also Group XL] In a system for " fading " from one audio frequency source to another or vice versa valves are used having at least the following electrodes in the order named, cathode, gain control grid, screen grid, signal grid, anode. As shown the anodes of two such valves 80, 81, are connected together and to the common output, the signal grids 82, 83 are connected to the sources AF1, AF2 respectively and the gain control grids 84, 87 are connected to ganged potentiometers 86, 89 respectively which produce gain control potentials which are varied in opposite directions by the operating member 90.
Patent GB-996513-A (GB)
Title: Improvements in preparation of acrylonitrile copolymers
IPC: C08F28/00
Filed: 1962-09-03
Abstract: Acrylonitrile and at least one other ethylenically unsaturated compound are copolymerized in an aqueous medium or pH 2 to 3.5 in the presence of a chlorate-sulphite catalyst system, and in the presence of at least one ethylenically unsaturated aliphatic sulphonic acid or water-soluble salt thereof, e.g. allyl, methallyl, allyloxyethyl, methallyloxyethyl, allyloxypropanol, allylthioethyl and allylthiopropanol sulphonic acids and their alkali, alkaline earth, aluminium and ammonium salts. The resulting copolymers are of uniform particle size. Specified comonomers for use with acrylonitrile are vinyl and vinylidene chlorides, vinyl acetate and chloroacetate, acrylic and methacrylic acids and their methyl esters, acrylamide, styrene and methyl vinylpyridine. The process may be carried out continuously. The examples describe the preparation of copolymers containing in excess of 85% of acrylonitrile and, as comonomers: (1) methyl acrylate and sodium methallylsulphonate, (2) methyl acrylate and sodium allylsulphonate, (3) methyl methacrylate and sodium methallylsulphonate, and (4) vinyl acetate and potassium allylsulphonate.
Patent GB-1200781-A (GB)
Title: Motion picture projector
Inventor: ROMAN ROBERT JUSTIN
IPC: G03B21/46
Filed: 1967-07-21
Abstract: 1,200,781. Cine projectors. EASTMAN KODAK CO. July 21, 1967 [July 25, 1966], No.33754/67. Heading G2E. A cine projector for selectively projecting two different types of film, such as super-8 and standard-8, has a single gate assembly 42 and a single film advancing member consisting of a claw plate 38, there being a single control lever 76 which adjusts the stroke and lateral position of plate 38 and also adjusts the gate aperture size for the chosen film. Film feeding mechanism Claw plate 38 is driven through the pull-down cycle by the engagement of followers 44 with driven cam 36 and is supported by a framing plate 12 which is selectively positioned by lever 76 to adjust the stroke and position of plate 38. Spring 56 biases claw plate 38 towards plate 12, three bearing surfaces being provided by balls 54a, 54b, 54c trapped between facing recesses in the two plates. The framing plate 12 rests on two pins 24 extending from housing 10 to enter recesses 22 in plate 12, and on a shoulder of the housing which supports a flange 16 of the plate. Spring 62 urges plate 12 towards gate 42, and downwardly on to framing adjustment cam 60. In the standard-8 position, a limit-screw 72 threaded through flange 16 bears against a boss (33), Fig. 4 (not shown), on housing (10) extending through an elongated slot (34) in plate (12). For the super-8 position, lever (76) is depressed whereby a cam (80) engages a further screw (86) to displace framing plate (12) to the left, thus increasing the stroke of claw plate (38) by shifting the pivot ball (54c) away from the gate. Lateral displacement of claw teeth 40 occurs as recesses 22 are moved out of alignment with pins 24 which then rest on the flat surface of plate 12. Screw 92 extending from housing 10 engages flange 16 to provide fine adjustment of this lateral displacement. Gate and aperture adjustment Gate (42) comprises an aperture plate (120) with a film track surface at the rear and having an elongated opening (122), Fig.6 (not shown), with guide ribs (124) on which may slide a mask (140) with standard-8 and super-8 apertures (144) and (142), said mask being retained by an apertured plate (150) riveted to plate (120). Plate (120) has two integral H-shaped arms (134) which engage spring-arms (136) extending from housing (10), Fig.2 (not shown). Gate (42) may thus be swung open on arms (134) against a spring-loaded pressure plate (156) during rewind. Mask (140), Fig.2, is shifted between its two positions by a lever (170) to which it is connected by a bi-stable spring (180), lever (170) being actuated by the movement of control lever (76). Spring (180) also yields to permit opening of gate (42) by the arm (114) of a multiarmed member (98) pivoting on a closure plate (96) for the pull-down mechanism. Member (98) is released to actuate rewind mechanism by a latching lever (112).
Patent GB-1205856-A (GB)
Title: Misconvergence compensation for single gun, plural beam type color television picture tube
IPC: H04N9/28
Filed: 1968-07-16
Abstract: 1,205,856. Colour television tubes. SONY CORP. 16 July, 1968 [19 July, 1967], No. 33820/68. Heading H1D. In a plural-beam colour television display tube in which the beams BB, B G , BR intersect at the main focusing lens L and are converged to a common point at the beam selecting grid or shadow mask GP, the convergence system F comprises an inner pair of plates P, P<SP>1</SP> at a common potential and an outer pair of plates Q, Q<SP>1</SP> which are connected at tQ, tQ<SP>1</SP> to separately adjustable voltages whereby the outer beams B B , B R  may be individually deflected. The plates Q, Q<SP>1</SP> may be D.C. isolated from each other and common or separately adjustable dynamic convergence voltages also applied to them. The convergence system F may comprise two sets of deflection plates Q, Q<SP>1</SP> (Q 1 , Q 2 ; Q<SP>1</SP> 1 , Q<SP>1</SP> 2 , Fig. 4) whereby each of the outer beams BB, BR is first further deflected outwardly from the centre beam B G  and then deflected inwardly to the convergence point.
Patent GB-1367355-A (GB)
Title: Vibration damping mounting
IPC: F16F15/04
Filed: 1972-07-26
Abstract: 1367355 Spring units ISOLATED SYSTEMS Ltd 26 July 1972 [21 July 1971] 34105/71 Heading F2S A resilient mounting comprises a base structure 11, 39, 20, Fig. 2, or 111, 119, 120, Fig. 3, including a base part 11, 111 and first resilient means 39, 119 mounted on the base part; and a support part 13, 113 carried by the first resilient means 39, 119, the support part 13, 113 being movable towards and away from, and transversely of the base part 11, 111, a channel 30 defined around the base structure between it and the support part 13, 113, second resilient means (a length of plastics or rubber tubing) in the channel 30, and a separate ring 27, 127 secured to the support part 13, 113 and overlying the channel mouth so as to retain the second resilient means captive in the channel 30. Both mountings are adjustable.
Patent GB-801058-A (GB)
Title: A process for the continuous production of polyamides from dicarboxylic acids and diamines
IPC: C08G69/28
Filed: 1956-11-08
Abstract: Polyamides are made by heating a reaction mixture comprising a dicarboxylic acid, a diamine, water and phenol, cresol or a xylenol at polyamide forming temperatures whilst maintaining the concentration of the phenolic component in the reaction mixture at 10 to 80 per cent by weight calculated on the anhydrous initial components.  In the preferred embodiment of the invention, the aqueous solution of the initial components is passed through an evaporator and pumped into the upper part of a heated vertically arranged reaction vessel, the condensate being continuously removed from the lower end of the reaction vessel.  The example describes the condensation of an adipic acid salt of hexamethylene diamine in an aqueous solution containing phenol.  Residual phenol may be removed from the condensate by extraction with water or by passing superheated steam through the condensate.  The polyamides obtained may be used in the manufacture of yarns, fibres and foils.
Patent GB-342159-A (GB)
Abstract: 342,159. Solid-fuel stoves and ranges. ROSENITSCH, J., 15, Kaiserstrasse, Oldenburg, Germany. Feb. 10, .1930, No. 4453. [A Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 9, 1930.] [Class 126.] Air supply for combustion; boilers, arrangement of; grates; air-heating stoves.-In a fire-pot for stoves or ranges, of the kind comprising circular conical walls a and a horizontal grate c, the walls a are wholly imperforate, and widen upwardly to a diameter at the upper edge which is at least one and a half times that at the grate surface. The upper edge is preferably flanged outwardly, as at b. The fire-pot is preferably placed at only sufficient distance beneath the top plate of the stove to allow the gases to pass over the upper edge. Fig. 3 shows the arrangement of the fire-pot in a range having a side oven d, the fire-pot being placed in a water-heater e and being surrounded by a fireclay jacket s which distributes the heat uniformly and prevents overcooling of the pot, particularly when starting the fire. Fig. 5 shows an air-heating stove comprising concentric casings, at the top of the inner of which the fire-pot is mounted. The gases pass downwardly between the casings and heat air which passes up the inner casing, from which it is delivered by inclined channels m, n. A partition p near the top of the inner casing separates a space containing the ash-drawer g. A similar form of stove is described in which the air heated in the inner casing is supplied to the grate, the outlets m, n and the partition p being omitted.
Patent GB-941253-A (GB)
Title: Improvements in or relating to folding boxes or cartons
Inventor: KELLY DOUGLAS ARTHUR JOHN
IPC: B65D5/52
Filed: 1961-09-25
Abstract: 941,253. Display cartons. TAYLOWE Ltd. July 20, 1962 [Sept. 25, 1961], No. 34221/61. Heading B8P. [Also in Division G5] A display carton folded up from a blank to provide a tubular body comprises a partition member 4, a display panel 8 interconnected by a creased strip 6 integral with the tubular blank said strip being slit as at 11 to define a tongue 10 which, when required, is engaged over an edge of said rear wall to retain the display panel in the raised position. Alternatively, a tongue is provided in the rear wall of the carton to engage in a slit provided in the strip 6.
Patent GB-190016-A (GB)
Title: Improvements in or relating to phonographs
IPC: G11B17/02
Filed: 1921-12-20
Abstract: 190,016. Wojtasiewicz, K. Dec. 20, 1921. Locking rotary elements by positive detents.- A hand-operated device for stopping the turntable of a gramophone comprises a friction brake and a positive stop, 'both acting on the spindle of the turntable. The positive stop comprises a fork 20, at the end of a, rod 21, adapted to engage an octagonal part 19 of the spindle as shown in Fig. 6. The brake is so arranged that the shoe 25 engages the spindle before the fork 20 becomes operative. A catch 27 is provided to lock the rod 21 in its operative position.
Patent GB-1387532-A (GB)
Title: Printing machine
IPC: B41F13/18
Filed: 1973-07-18
Abstract: 1387532 Printing press MASCHINENFABRIK AUGSBURG-NURNBERG AG 18 July 1973 [21 July 1972] 34308/73 Heading B6C An offset web printing perfecting press 1 has opposed blanket cylinders 2, 3 with associated plate cylinders 4, 5 in which the blanket cylinders lie one on each side of a plane 11 joining the axes of the plate cylinders, are twice the diameter of their associated plate cylinders and each has an axial groove 15, 16 offset with respect to each other so that a groove always faces the solid generated surface of the other cylinder in the nip between the cylinders. Plane 11 is preferably vertical and the line joining the axes of the blanket cylinders is at 15 degrees to it. For multi-colour work a series of presses 1, 1<SP>1</SP> is used.
Patent GB-629548-A (GB)
Title: Locking means for longitudinally sliding rods or the like
IPC: F16B7/14
Filed: 1947-12-29
Abstract: 629,548. Locking rods. KING, E. A. Dec. 29, 1947, No. 34324. [Class 80 (iii)] A slidable rod A is locked within a fixed tube F by the engagement of corrugations formed on the inside of the tube F with corrugations on tapered blocks E. The latter are urged towards a tapered part of the rod A by a spring D bearing against a loose washer C and reacting against a washer B fixed to the rod. A release tube G located between the rod A and tube F may be moved to separate the taper faces on the blocks and rod to permit bodily movement in both directions of all the parts within the fixed tube. If the tube G is free the rod A may be moved to the right but is locked against movement to the left as seen in the Figure.
Patent GB-1415446-A (GB)
Title: Self-adjusting fan for internal combustion engines
IPC: F04D29/38
Filed: 1973-07-19
Abstract: 1415446 Axial-flow fans WALKER MFG CO GmbH 19 July 1973 34344/73 Heading F1C A cooling fan for an I.C. engine comprises selfadjusting impeller blades of synthetic resin, e.g. polypropylene, each having a rigid leading edge portion 11 attached to the periphery of the hub 1, and an elastically flexible flap 14 attached to the rigid portion 11; and a latticed insert 3 embedded in each blade, the insert having a first set of webs 16 extending rectilinearly along the concave surface 17 of the blade and a second set of webs 18 intersecting the first set to form an open lattice, the webs 18 being corrugated, the coefficient of thermal expansion of the insert being lower than that of the synthetic resin material of the blades whereby the angle of incidence of the blade changes with temperature. The insert may be of perforated or expanded sheet metal or a wire grid or may be of glass fibre reinforced synthetic resin. The blade can flex under the influence of air-flow and centrifugal force to reduce its angle of incidence, the centrifugal forces being increased by providing a beaded trailing edge portion 15 and loading this portion with balls or a weight 21. Temperature increase causes an increased curvature of the blade in the direction of the webs 16 and a corresponding increase in the angle of incidence. Curvature in the direction of the webs 18 does not occur, however, because the corrugated form of these webs accommodates the differential expansion.
Patent GB-1356575-A (GB)
Title: Variable snap-action electrical switch contact assembly and an  electrical energy regulating device provided with such a contact  assembly
IPC: H05B1/02
Filed: 1970-07-15
Abstract: 1356575 Magnetic snap action contacts; energy regulators DREAMLAND ELECTRICAL APPLIANCES Ltd 7 July 1971 [15 July 1970] 34373/70 Heading H1N In an electric switch provided with magnetic snap action the magnetic force is provided by a pair of permanent magnets 15, 17 relatively rotatable or by a magnet and armature relatively rotatable to adjust the effective magnetic force. The magnets and/or armature are attached to a terminal 19 and a bimetal blade 11 by contact rivets 12, 15. The bimetal is heated by a series heating element 13 (e.g. wire or tape wound on fibreglass) to form an energy regulator. The adjustment of the magnetic force and adjusting screw 18 set the cycle time.
Patent GB-282677-A (GB)
Title: Improvements in and relating to steam or gas turbines
IPC: F01D25/00
Filed: 1927-12-19
Abstract: 282,677. Skoda Works, Plzen. Dec. 21, 1926, [Convention date]. Casings.-The valve boxes and casing of a turbine are mounted to permit free expansion due to heat. The rear main bearing 2 is fixed to the base and the front main bearing 3 is fixed to the casing and is free to slide on the base. The valves are contained in two boxes 5 which are secured to the front main bearing and are supported at their outer ends on plane surfaces. The innermost valves 6, 9 supply steam to the upper half of the turbine and are used alone for the lightest loads. Valves 7, 10 are brought in next and supply steam to the lower half of the turbine. The outermost valves, of which there may be more than two, are used for overloads and supply steam to a later stage of the turbine.
Patent GB-1357782-A (GB)
Title: Sealing means
IPC: F16J15/12
Filed: 1971-07-22
Abstract: 1357782 Joint-making packing LATTY INTERNATIONAL SARL 22 July 1971 [22 July 1970] 34392/71 Heading F2B A gasket, particularly for joints used in the chemical industry, comprises a rigid annular frame 1 and a sealing element formed by a strip 4 of chemically inert substance having a fibrous texture and folded lengthwise into a U-section and wound around the periphery 3 and the end surfaces of the frame to form at least one complete turn on the frame. In the embodiment shown in Fig. 1, the strip has three turns 4a, 4b, 4c, the ends e, f being close together to avoid excess thickness. The strip may be retained on the frame by its own stickiness or by sticking, sewing, stapling or knurling. The frame 1 may be a mixture of compressed asbestos and rubber, or a metal or a plastics. In the embodiment shown in Fig. 3, the frame 5 comprises a corrugated metal core 6 disposed between two rings 7 of compressed asbestos and rubber and the strip 41 is of asbestos filaments. In a modification, the strip is composed of a mixed filament formed by twisting a P.T.F.E. filament impregnated with a P.T.F.E. dispersion with a glass filament. In the embodiment shown in Fig. 6, the frame 8 is a metal plate having apertures 9 and projections 10 and a first strip 11 of plastics prepared from P.T.F.E. powder and secured to the frame by the projections 10 and a second strip 12 braided or woven from a P.T.F.E. filament is disposed over the first. The strip comprises fibres or filaments joined together by felting, weaving, braiding, stitching or needling and may be of asbestos, P.T.F.E., propylene, superpolyamides, alumina-silica, graphite or boron nitride. The filaments may also be of noble metals, stainless steel or a nickel alloy. The strip may be impregnated with fine powders, oils, resins or waxes, e.g. powders of P.T.F.E. graphite, mica, talc, barium sulphate, asbestos, silicates, formophenolic resins or silicone oils.
Patent GB-199329-A (GB)
Title: Pocket lighter
IPC: F23Q2/14
Filed: 1922-12-18
Abstract: 199,329. Kohler, P. Dec. 18, 1922. Pocket igniters, frictional.- In a frictional pocket igniter, several removable cerium stones e are arranged in longitudinal grooves in a tube d secured to the head of the casing a, and are enclosed by a rotatable sleeve f having a longitudinal slot g which may be brought into register with one of the stones to render it accessible to the striker b, which is arranged to form a wick holder and is normally inserted in the casing a. The sleeve f is retained in position by a screw cap h, the removal of which enables the worn-out stones to be replaced.
Patent GB-971739-A (GB)
Title: Improvements in and relating to amplifiers
Inventor: VANLINT ROY WILLIAM
IPC: H03H7/24
Filed: 1962-09-10
Abstract: 971,739. Amplifiers. A. C. COSSOR Ltd. Sept. 10, 1963 [Sept. 10, 1962], No. 34592/62. Heading H3W. The invention relates to a direct-coupled amplifier in which loss of gain at very low frequencies is compensated by means of a positive feed-back network comprising terminals 13, 14 connected to the amplifier output and 28, 29 connected to the input, and formed of series resistors 18, 19, 21, 22, shunt variable resistor 17 and shunt capacitors 24-27. Such an arrangement gives excessive gain at the lowest frequencies so that if a D.C. input is applied the gain and hence output increase after a time interval; in accordance with the invention this is prevented by shunting the resistor 17 by a network comprising thermistors 10, 11 which are biased from a D.C. source (not shown) via resistors 32, 33 and adjustable resistors 12, 31. Alternatively, the positive feed-back path could be shunted with a second, negative feedback path including a phase reverser and a suitable R.C. network.
Patent GB-367373-A (GB)
Title: Improvements in or relating to cigarette making machines
IPC: A24C5/39
Filed: 1930-11-18
Abstract: 367,373. Cigarette-making machines. MOLINS, W. E., 2, Evelyn Street, Deptford, London. Nov. 18, 1930, Nos. 34634 and 35572. [Class 130.] In a machine in which tobacco is delivered to a combing roller and brushed and straightened before it enters the filling trough, a constant level of tobacco is maintained in a hopper 1 by flexible bands 10 which are arranged in grooves on a brushing roller 4 and bear on the tobacco to prevent it from rising above a predetermined level and carry back excess tobacco from a combing roller 3. The bands may be formed of closely wound spiral springs and embrace a guide roller 11 mounted in pivoted links 17 hinged at 18 and carrying counterweights 19, the downward movement of the links being limited by an adjustable stop 20. Alternatively, the guide roller may be given a lateral oscillating movement by a cam to impart a transverse movement to the tobacco mass relatively to the carded rollers. Flexible prongs 12 which remove surplus tobacco are mounted between the bands. The tobacco after being removed from the roller 3 falls on to a distributer 6 and is finally delivered to a filling trough 8.