baber/WOPTO huggingface dataset:
Patent GB-667497-A (GB)
Title: Improvements in gas turbines
Inventor: BOWEN IDRIS GWYNNE
IPC: F02C7/30
Filed: 1950-03-15
Abstract: 667,497. Gas turbine plant. SHELL REFINING & MARKETING CO., Ltd. March 15, 1950. No. 6498/50. Class 110(iii). A gas turbine plant in which a plurality of surfaces are arranged in a duct carrying the gases from the combustion chamber to the turbine so as to deflect the gases and to cause deposition on the surfaces of solid or semi-solid matter, has the surfaces formed so as to enclose air passages, which do not communicate with the interior of the duct, through which cooling air, withdrawn from the circuit upstream of the combustion chamber and returned to the circuit between the combustion chamber and the turbine, passes. The plant shown comprises a compressor 1 which discharges air through a heat exchanger 2 to a combustion chamber 3 the gases from which pass through a cleaner 7 to a turbine 3 which exhausts through the heat exchanger 2. The cleaner 7 may comprise a number of cylindrical or other tubes arranged in staggered rows across an enlarged part of the duct leading from the combustion chamber to the turbine, in which case cooling air passes through the interior of the tubes. Alternatively, the surfaces may be formed by corrugated plates arranged with the corrugations transverse to the direction of gas flow, the plates being so arranged that the gas and cooling air respectively pass between alternate spaces between the plates. The header 8 of the cleaner 7 is connected by a pipe 12 to a point in the circuit between the compressor 1 and heat exchanger 2 and the header 9 to a point between the combustion chamber and cleaner or, alternatively, to a point between the cleaner and turbine. Specifications 624,291 and 627,896 are referred to.
Patent GB-1246661-A (GB)
Title: New colouring matters
Inventor: BERRIE ALISTAIR HOWARD
IPC: C09B63/00
Filed: 1968-02-09
Abstract: 1,246,661. Metal salts of monoazo dye acids. IMPERIAL CHEMICAL INDUSTRIES Ltd. 24 Jan., 1969 [9 Feb., 1968], No. 6530/68. Heading C4P. The invention comprises the alkaline earth metal or heavy metal salts of monoazo dyes A-N=N-B wherein A is the residue of a diazo and B of a coupling component and wherein A or B or both A and B contains two COOH groups each directly attached to an aromatic nucleus. Specified metals are Ca, Ba, Sr, Cd, Al, Mg, Mn, Cr, Pb, Cu, Co, Ni and Zn. The salts are prepared by treating an aqueous solution of a soluble salt of the azo dye with a soluble metal salt. In examples, the dyes obtained by coupling diazotized aminobenzene dicarboxylic acids with 2,3-naphthoic acid arylamides, acetoacetanilides, pyrazolones or aminonaphthol-sulphonic acids and the dye 2 - chloro - 4 - nitroaniline#acetoacetanilide- 3,4-dicarboxylic acid are prepared, and converted into their Ca or Ba salts. The salts are used to colour polyvinyl chloride in yellow, red and blue shades.
Patent GB-406482-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: B65H23/18
Filed: 1933-03-04
Abstract: 406,482. Control of D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Shoults, D. R. ; 318, Charles Street, Scotia, New York, U.S.A.) March 4, 1933, No. 6650. Convention date, March 5, 1932. [Class 38 (iii).] In an arrangement in which a braking generator applies a drag to a driving motor, an auxiliary boosting generator is connected between the braking generator and the driving motor, and the arrangement is such that the E.M.F. of the braking generator is equal to the back E.M.F. of the driving motor. Motors 15, 16, drive a paper winding reel 12 against the braking action of a generator 30 connected to the unwinding reel 11, and are supplied from a variable voltage generator 25. An auxiliary generator 38 is connected in a circuit connecting the generators 30, 25, and has a separately excited field 39, and a field 41 carrying the current of the motor 15, 16. With the generator 25 supplying no current to the motors 15, 16, the auxiliary generator 38 is effective to tension the paper to an extent determined by the adjustment of the field regulator 40, and by means of the field 41 of the generator 38, which compensates for variation in the current taken by the motors, and a carbon pile regulator 32 adjusted by the current of the generator 30, which compensates for the change in the diameter of the reel, this tension is maintained at a constant value as the speed of the motors 15, 16, is increased by means of the generator field regulator 27.
Patent GB-446852-A (GB)
Title: Screw propeller for water and air vehicles
IPC: B63H1/12
Filed: 1935-03-04
Abstract: 446,852. Screw propellers. ESCHER WYSS MASCHINENFABRIKEN AKT.-GES., Escher Wyss Platz, Zurich, Switzerland. March 4, 1935, No. 6777. Convention date, March 7, 1934. [Class 114] A screw propeller with relatively thick boss has the profile and angular attack of the blades at various radial distances chosen so that the circulation at the boss itself is zero and thence outwards increases to a maximum, such increase being less rapid than the ratio of the eighth root of the radial distance R from the boss to the half length of the blade Ra. The blades may have the same profile at different angles of attack or different profiles with the same angle or both may vary.
Patent GB-525854-A (GB)
Title: Improvements in or relating to the delivery of gas under pressure
IPC: F17C13/04
Filed: 1939-03-02
Abstract: 525,854. Supplying compressed gas from storage. REYROLLE & CO., Ltd., A., and ANDERSON, W. March 2, 1939, No. 6808. [Class 8 (ii)] [Also in Groups XXIX and XXXVII] Gas is supplied alternately from two sets of cylinders A through separate stop valves D and pairs of reducing valves E, F, and a common stop valve G and needle valve H. When the pressure on the inlet side of the reducing valve F in use diminishes, a corresponding pressure-responsive contact K is made, and energizes a corresponding solenoid M which acts on a lever L to lower the pressure setting of the valve F in use and increase the setting of the other valve F. The supply is then cut off from the cylinders A in use and started from the other cylinders. The empty cylinders now no longer in use may be replaced by full cylinders. The switches K and a delivery pressure switch N control local warning lamps Q and remote lamps, and also control a hooter through a relay which can be put out of action. This relay comprises a switch contact S<SP>1</SP>, Fig. 4, raised by the arm V<SP>2</SP> of an armature V<SP>1</SP> when the solenoid is energized, to complete a circuit through a second contact S<SP>2</SP>. The contact is broken by a push rod X acting through a U-shaped member W to raise the contact S<SP>2</SP>, the member W being supported in its upper position by an extension carrying an auxiliary armature Y.
Patent GB-401937-A (GB)
Title: Improvements in hair-combs
IPC: A45D24/02
Filed: 1933-03-07
Abstract: 401,937. Hair combs. GOLDCROWN M. J., (trading as JULIUS, M.), 303, Old Street, London. March 7, 1933, No. 6901. [Class 131.] In a comb for use in setting permanently waved hair, the back 1 is curved in a plane at right angles to the teeth, so as to fit the head, and is provided with a ridge or thickening 4 on the outer side of the curve. The comb is provided with a handle 3 which may be curved in the opposite direction to the back 1, may be provided with teeth, and may be formed integrally with either the back 1 or the thickening 4. The thickening 4 may be formed by securing a strip to the back 1 or by forming the back of twice the required width and then doubling it upon itself. The spaces between the roots of the teeth are at least as wide as the teeth themselves, and the handle 3 is provided with a blunt end 5.
Patent GB-1515362-A (GB)
Title: Suspensions for vehicles
IPC: B60G11/42
Filed: 1975-02-19
Abstract: 1515362 Vehicle suspensions NORDE SUSPENSIONS Ltd 23 Feb 1976 [19 Feb 1975] 6915/75 Heading B7D In a road vehicle suspension, each end of an axle 2 is resiliently attached to a leaf spring 1 having one end 5 pivotally connected to a bracket 7 on the vehicle frame 8 and the other end 9 connected to the frame 8 through a spring 10 comprising a rubber block bonded to end plates 11. The leaf spring 1 may have a single tapering leaf or multiple leaves and is attached to the axle 2 by U-bolts 4 and a rubber bush. The spring 10 has its end plates 11 rigidly mounted on members 12, 13 secured to the spring 1 and the frame 8 respectively, and the inclination of the spring 10 may be varied for modifying the ride characteristics of the suspension by using alternative or adjustable mounting members 12, 13. The axle 2 is transversely located by a panhard rod. In a modification the spring 10 is turned through 90 degrees so that it is at right angles to the longitudinal axis of the vehicle. Two axles may be arranged in tandem with either the springs 10 or the pivots at the other ends of the leaf springs of the two axles positioned adjacent one another and connected to a balance lever pivotally mounted on the vehicle frame.
Patent GB-1120871-A (GB)
Title: Film stretching process and apparatus
IPC: B29C55/06
Filed: 1967-02-14
Abstract: 1,120,871. Stretching films longitudinally. E. I. DU PONT DE NEMOURS & CO. 14 Feb., 1967 [15 Feb., 1966], No. 6923/67. Heading B5B. Apparatus for longitudinally stretching continuous organic polymeric thermoplastic film comprises, in sequence, (1) a first group of parallel driven rolls each having a peripheral metal surface, (2) a driven roll parallel to said first group of rolls and having a peripheral surface of elastomeric material having a Shore "A" hardness within the range of from 50 to 70, (3) a group of closely spaced freely rotatable idler rolls parallel to the first group of rolls and each having a peripheral surface of elastomerio material having a Shore " A " hardness within the range of from 50 to 70, (4) a driven roll parallel to said first group of rolls and having a peripheral surface of elastomeric material having a Shore " A " hardness within the range of from 50 to 70, and (5) a second group of driven rolls parallel to said first group of rolls and each having a peripheral metal surface; means to drive rolls (1) and (2) all at the same constant peripheral speed, and means to drive rolls (4) and (5) all at the same constant peripheral speed greater than that of rolls (1) and (2). The elastomeric material may be chlorosulphonated polyethylene, a copolymer of vinylidene fluoride and hexafluoropropylene, ethylene propylene diene rubber or a polyurethane. The first group of rolls may be of polished steel having a shot blasted chrome plated surface finish. The first and last of the group of idler rolls may be provided at each end with a metal-surfaced circumferential band or cap adapted to contact the edge portion of the film. A light knurl is preferably imparted to the metal surface of the sleeve or cap.
Patent GB-286881-A (GB)
Title: Improvements in rubber printing surfaces or stamps
IPC: B41K1/38
Filed: 1927-03-12
Abstract: 286,881. Clarke & Son, Ltd., J. T., and Clarke, H. R. March 12, 1927. Printing - surfaces.-Indiarubber printing-surfaces are formed in one integral piece composed of a close or solid rubber layer A, on which the printing matter a is moulded, and a cushion of sponge rubber B. the whole being compressed and vulcanized together.
Patent GB-219900-A (GB)
Title: An improved feeding appliance for pigs or other animals
IPC: A01K5/02
Filed: 1924-03-18
Abstract: 219,900. Long, V. D. March 18, 1924. Fixed-chamber apparatus for pulverulent materials.-Animal food is delivered from a hopper 3 into troughs 12 by a measuring-apparatus operated by the animal moving a door 15 to obtain access to the trough. Below each of the outlets 7 are formed fixed measuring chambers 8, the bottom 9 being hinged at 10 and counterweighted so as to close when no food rests thereon, but to open by gravity when loaded. A stop 13, attached to a slide 14 at the top of the chamber 8 prevents movement of the, bottom 9 until the slide is closed, when the stop 13 passes over the pivot 10. The slide is linked to the upper end of the door 15 and is closed as the door opens. Delivery of food may be prevented by a member 19 having its edges so formed that when moved longitudinally it acts as a stop simultaneously beneath the bottom 9 of each of a series of measuring chambers.
Patent GB-125767-A (GB)
Title: Improvements in and relating to Boring, Drilling, and other Machine Tools.
Inventor: CURRAN CHARLES JAMES
IPC: B23B47/28
Filed: 1918-04-26
Abstract: 125,767. Curran, C. J. April 26, 1918. Turning.-Means for accurately locating a drill c in a horizontal capstan lathe comprises a frame f secured to the bed and carrying a ring g provided with guide-surfaces l which are engaged by adjustable headed studs m mounted in a sleeve secured to the drill.
Patent GB-352450-A (GB)
Title: Improvements in socket and spigot pipe joints
IPC: F16L13/04
Filed: 1930-03-04
Abstract: 352,450. Pipe joints. VEREINIGTE STAHLWERKE AKT.-GES., 67, Breitestrasse, D³sseldorf, Germany. March 4, 1930, No. 7117. Convention date, March 4, 1929. [Class 99 (i).] The flange 3 of the spigot member 1 is bent back as shown at 4 to form a double flange over which the end 5 of the socket is bent and to which it is welded at 6. Specification 225,486, [Class 99 (i), Pipes and tubes, Joints &c. for], is referred to.
Patent GB-267928-A (GB)
Title: Method of and apparatus for treating crystallised margarine mass
IPC: B01F13/10
Filed: 1927-03-15
Abstract: 267,928. S÷rensen, C. Hildebrandt-. March 16, 1926, [Convention date]. Emulsions, making. -For removing water from, and for kneading and mixing, a margarine mass it is fed by one or more pistons to a conveyer worm which forces it through a system of resistance elements, such as perforated plates, with propellers of the multivane type arranged between the elements. Fig. 1 shows a side view of a machine according to the invention and Figs. 2, 3, and 4 are sectional views of the three parts of the machine as divided bv the lines A, B and C, D, Fig. 1, The mass is fed from a hopper 54 to cylinders 23 from which it is pressed forward to the worm 28 by pistons 37 reciprocated by gearing 32, 33 and connecting-rods 35. Slots 56 allow for the escape of water from the cylinders. Vaned propellers 29 and intervening perforated plates 30 are arranged at the left-hand end of the worm. and then there are two co-operating plates 46, 47 with rectangular apertures which by screws 49 bearing on the edge of the plate 47 can be arranged to provide narrow slits of such width as to effect the desired extent of water extrusion. This water drains off through grooves at the bottom of the casing and an opening in the end cover 58. To effect the emulsification of the remaining water and the thorough mixing of the mass, it is then passed through apertured plates 50 separated by rapidly turning propellers 43,. and is carried forward by a worm 45 to another collection of perforated plates and propellers 51, 44; it finally leaves the machine through a square or other nozzle 52. Mixing materials may be introduced by a hopper 53. The propellers 43, 44 and worm 45 are carried by a rapidly rotating shaft 39 disposed within the shaft 25 of the worm 28 and propellers 29. As modifications of the apparatus above described, all the propellers may be arranged to be driven a.t the same speed, the perforated plates may be replaced by arms projecting into the mass, the axes of the cylinders may be perpendicular to that of the worm 28, the position of the adjustable plates 46, 47 may be altered, and also, if the mass is put through the machine a second time with the machine run at a greater speed than for the first time, that part of the apparatus beyond the adjustable plates may be dispensed with.
Patent GB-181108-A (GB)
Title: A self-propelled turnip cutter
IPC: B26D3/18
Filed: 1921-03-05
Abstract: 181,108. Mathers, H. W., aud Mathers, A. C., (trading as Mathers & Son, H. W.). March 5, 1921. Cutting vegetables.-A turnip-cutter l mounted on a carriage a and operated by a motor k which also propels the carriage is fitted with means for disconnecting the travelling-wheels from the driving-gear without the use of a clutch. The wheels b are connected by a chain w to the spindle m of the cutter which is driven by a chain t', shaft o with fast and idle pulleys r, and belt gearing s from the motor. The chain w is sufficiently slack to permit its removal from the sprocket v, the slack being taken up when the machine is to be propelled by means of an idle pulley v<1> carried by an adjustable slotted bracket v<2> bolted to the frame a. The belt s can be shifted by a fork y and a hand-lever. A swivel wheel e is fitted to enable the device to be steered.
Patent GB-205460-A (GB)
Title: Improvements in or relating to coking retort ovens
IPC: C10B11/00
Filed: 1923-03-13
Abstract: 205,460. Becker, J. Oct. 13, 1922, [Convention date]. Coke ovens.-Relates to regeneratively-heated inclined coke-ovens, and consists in part in applying thereto the flue arrangements described in Specification 171,117, and in part in grouping the flues so that the heating effect can be controlled along the length of the heating-wall. As shown in connection with an oven adapted for heating either by a rich or a lean gas, the heating-flues 19 are arranged in four groups K<1>, L<1>, each of which delivers into a top header flue 32 connected by a cross-over duct 33 with a corresponding group of flues in an adjacent heating-wall. Beneath and parallel to the ovens are regenerators G, H separated by walls 13, 22, and divided into compartments corresponding with the flue groups by partitions 24. each heating-flue being in communication with two regenerators on opposite sides of the subjacent wall 13. The compartments are arranged at different levels, and each four in line communicate through flues 23 with a common valve box. not shown, by which they can be connected either to atmosphere or a main flue 29. When operating with rich gas supplied through ducts 37 beneath the heating-walls all the regenerators are utilized for heating the air for combustion; when lean gas is used the air and gas are supplied through the regenerators G, H respectively. In a modification, the soles of the two lower regenerators of a group of four are at one level, and those of the two higher at another.
Patent GB-954173-A (GB)
Title: Checking device for rod-like articles such as cigarettes
Inventor: RUDSZINAT WILLY
IPC: A24C5/31
Filed: 1963-02-22
Abstract: 954,173. Cigarette making machines. K. KÍRBER. Feb. 22, 1963, No. 7222/63. Heading A2C. In apparatus for controlling the feed of cigarettes to a take-off member 11, piling up of cigarettes causes a feeler belt 22 to be lifted and thereby actuate an electric contact 31 to stop a driving motor feeding the cigarettes. The cigarettes Z are fed by grooved chains 4 and 5 on to a supply belt 10, faulty cigarettes being rejected by means of a blower nozzle 6. A device 13 is pivoted to a machine frame portion 3 and consists of a wall 14 which carries shafts 17, 25 and 20 on which are mounted wheels 18, 24 and 21 for guiding the feeler belt 22. The wall 14 also carries an angle member 29, the free end part 30 of which operates the electric contact 31. The shaft 17 also carries a gear wheel 19 which normally meshes with a driving gear 34. The cigarettes are removed from the belt 10 by a suction take-off member 11. In the event of a pile-up of cigarettes adjacent the suction member 11, the device 13 is pivoted upwardly so that the gear wheel 19 becomes disengaged from the gear 34 and the contact 31 is released to stop the cigarette feed driving motor.
Patent GB-471814-A (GB)
Title: Improvements in mountings for lifting jacks on road vehicles
IPC: B60S9/22
Filed: 1936-03-10
Abstract: 471,814. Jacks attached to motor vehicles. BAILEY, E. H., and SMITH & SONS (MOTOR ACCESSORIES), Ltd., S. March 10, 1936, No. 7236. [Class 79 (iii)] In motor vehicles having independent wheel suspensions of the type wherein the wheel support is connected to the frame by lateral pivoted arms or links, the jack structure is carried by a bracket attached to one or more of the arms of the suspension means. As shown, a jack 21 is secured in a boss 20 in an extension 19 of a bracket 18 attached to a lower pair of pivoted arms 12, 13 which, in conjunction with an upper pair of arms 14, 15 tensioned by a spring in a housing 17, form the suspension means for the wheel structure 11. The bracket may carry a rubber or other buffer to engage part of the suspension under excessive road shocks. Specification 433,076 is referred to.
Patent GB-1064768-A (GB)
Title: Improvements relating to the catalytic conversion of hydrocarbons
Inventor: LAWRANCE PAUL ANTHONY
IPC: B01J29/18
Filed: 1965-02-19
Abstract: A process for the catalytic cracking of petroleum fractions having more than 50% by volume of material boiling above 250 DEG  C. comprises contacting the fraction at elevated temperature with a catalyst which is a synthetic crystalline mordenite having pore openings of at least 5 <\>rA in diameter and having as its exchangeable ions hydrogen ions and/or Group IIa or Group VIa cations and recovering as product a lower boiling fraction and a fraction of similar boiling range to the feedstock but of lower wax content. Preferred catalysts contain magnesium or chromium up to 2%; fixed, moving and fluidized bed processes are possible. Preferred feedstocks are wax distillates (370-600 DEG  C.) containing at least 20% of wax. Conditions may be 650-1100 DEG  F., 0-50 p.s.i.g., space velocity 0.1-5.0 v/v/h.
Patent GB-1469889-A (GB)
Title: Apex seal for a rotary internal combustion engine
IPC: F02F5/00
Filed: 1975-02-21
Abstract: 1469889 Sintered copper based apex seal FORD MOTOR CO Ltd 21 Feb 1975 [6 March 1974] 7456/75 Heading C7D  An apex seal for a rotary internal combustion engine comprises a sintered Cu based alloy compact containing 0À1-0À6% Cr and 0À5-1À5% free C based on the weight % Cu, and the Cr being precipitated so that the hardness of the compact is 50-75 RB. The compact may be made by adding the -100 + 325 mesh C powder to the prealloyed Cu-Cr -100-325 mesh powder, compacting to at least 60% density preferably at 300-1800F, sintering in H 2 , vacuum or cracked NH 3  above 1500F and after quenching the compact is aged at 400-600F.
Patent GB-699796-A (GB)
Title: Improvements in or relating to the detection of cracks in engineering components
Inventor: YATES HENRY GEORGE
IPC: G01N29/07
Filed: 1950-03-24
Abstract: 699,796. Ultrasonic inspection devices. PARSONS & MARINE ENGINEERING TURBINE RESEARCH & DEVELOPMENT ASSOCIATION. March 21, 1951 [March 24, 1950], No. 7468/50. Class 118 (ii). In a pulse-echo flaw detector operating at an audio pulse recurrence frequency and comprising separate transmitting and receiving electromechanical transducers 3 and 4, the output from the receiving transducer 4 is applied to an aural indicator, e.g. telephone earpiece 10, through a gate circuit 6 which is opened when the transmitted pulse ends and is closed before reception of echoes from the boundaries of the work piece 1 by a positive gating pulse of adjustable duration from a phantaltron circuit 7, V2, Fig. 3 (not shown), which is triggered by the trailing edge of the directly received pulse. The pulse recurrence frequency is chosen to allow the effect of each pulse to die away between successive pulses. According to the Provisional Specification, the transmitter may comprise a mechanically actuated hammer. Specification 641,081 is referred to and a known system is also described in which the receiver is rendered inoperative for a short period after generation of the transmitted pulse in order to render the detector insensitive to reflections from the near boundary of the medium.