baber/WOPTO huggingface dataset:
Patent GB-1284981-A (GB)
Title: A brake-actuating mechanism
Inventor: COOKE ARNOLD
IPC: B60T17/08
Filed: 1970-01-29
Abstract: 1284981 Brake actuators INDIAN HEAD Inc 29 Jan 1970 4390/70 Heading F2F A spring-applied, fluid pressure released brake actuating mechanism 10 comprises a cylinder 12 having a wall 18 movable therein by the action of a spring 20 against pressure in a chamber 22, the spring 20 being situated between the wall 18 and an end cap 16, and the end cap 16 being removably fitted to the cylinder 12 by means of a resilient circlip 28 which has an outer portion 28A for seating in a groove 26 in the cylinder 12, the cap 16 being formed with a step 30 of a height substantially equal to the thickness X of the circlip 28 which step 30 prevents removal of the inner portion 28A from the groove 26 until the cap 16 is moved against spring 20. Thus to remove the circlip 28, the cap 16 is first moved against the spring force by a distance Y greater than the thickness X until an angled portion 34 on the cap 16 abuts a shoulder 32 on the cylinder 12; the circlip 28 may then be deformed inwardly of the cylinder 12, and removed from the groove 26 to allow removal of the end cap 16.
Patent GB-920375-A (GB)
Title: Process for the production of substantially stress-free moulded bodies
IPC: B29C48/355
Filed: 1961-02-06
Abstract: A stress-free, polycarbonate article, e.g. an extruded tube, is formed by maintaining the material during and immediately after moulding at a temperature between 70 DEG  and 120 DEG C. and preferably 80 DEG  to 100 DEG C.  The article may subsequently be tempered at a temperature between 120 DEG  and 145 DEG C., e.g. 140 DEG C.
Patent GB-427839-A (GB)
Title: An improved device for operating automatic telephone dials
IPC: H04M1/23
Filed: 1934-02-10
Abstract: 427,839. Impulse transmitters. VERDIER, A., 182, Latymer Court, Hammersmith, London. Feb. 10, 1934, No. 4422. [Class 40 (iv)] A dialling stick 1 has at one end a felt &c. pad 2 for cleaning the dial and at the other end means for attachment to a pen or pencil, for example, a threaded extension 6 which screws into the cap 7 of a fountain pen.
Patent GB-1526002-A (GB)
Title: Digital weighing apparatus with computation of cost of weighed product
IPC: G01G23/16
Filed: 1976-02-04
Abstract: 1526002 Digital weighing apparatus N I I KONSTRUK INST ISPYTATEL MASHIN PRIBOROV I SRED IZMERENIA MASS 4 Feb 1976 04426/76 Heading G4D  A digital weighing apparatus of the kind comprising a force to frequency transducer 2; means 45 for repeatedly counting the pulses from the transducer occurring in a unit of time; a multiplier 46 for deriving cost pulses from the weight pulses and a unit price value; and means 13 for displaying and recording the price, weight and cost, has a further counter 22 arranged to record the tare weight and deduct it from the measured weight during cost calculation. The weighing pan acts on a parallelogram linkage 1 actuating the transducer 3 to provide pulses at a frequency dependant upon the weight to a linearizing and timing circuit 70 (not described). Circuit 70 is inoperative upon switching on the apparatus until a tare setting button 41 is depressed. Depression of button 41 zeroizes all the counters and then enables circuit 70 which then delivers clock pulses on lines 73, 74 and during each clock period a number of pulses on line 72 dependent on the frequency from the transducer 2. Depression of button 41 also enables an AND-gate 23 which passes the pulses on 72 to a tare counter 22. At the end of the clock period gate 23 is inhibited and AND-gate 5 is enabled. At the beginning of each subsequent clock period, until button 41 is again pressed to change the tare value, the value in counter 22 is loaded into the weight counter 45. Then counter 45 counts pulses from circuit 70 representing the gross weight. When counter 45 has received the number of pulses equal to the count in the tare counter 22 it overflows; the overflow pulse on line 32 enables the cost counter 54 to begin counting the output pulses from the multiplier 46. Counter 45 continues to count the nett weight. At the end of each clock period the means 13 is enabled to display and record the nett weight and total cost from counters 45, 54 as well as the unit price set at 16.
Patent GB-955014-A (GB)
Title: Turbine jet propulsion engine
Inventor: EICHHOLTZ KONRAD AUGUST WERNER
IPC: F02C6/00
Filed: 1962-02-06
Abstract: 955,014. Gas turbine jet propulsion plant. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Feb. 6,1962 [Feb. 6,1961], No. 4486/62. Headings F1G and F1J. A jet engine is provided with a duct containing a turbine 9, Fig. 2 driving a compressor 7 delivering air into a conduit 14 which debouches externally of the duct, a conduit 38 for by-passing a gas turbine unit 11, an additional combustion chamber 33 arranged upstream of turbine 9 and a switching device 29 for directing the airstream flowing through the duct either toward the gas turbine unit or toward the by-pass and thence to the additional combustion chamber. The jet engine is in the configuration of Fig. 2 for operation at low flight speeds with the jack-operated switching device 29 arranged to uncover the gas turbine inlet conduit 37 and to cover by-pass 38 while a jack-operated valve 30 covers the inlet port in the combustion chamber. Air in conduit 36 is compressed by compressor 11 and burnt in chamber 13, the combustion gases being expanded first in a turbine 10, then in turbine 9 and in nozzle 3 through which they are ejected. After-burning may be provided in the chamber 33. In the upper range of flight speeds the engine is arranged in the configuration of Fig. 3 in which the gas generator conduit is closed and the by-pass 38 is opened into chamber 33. Air in conduit 36 which has been highly compressed in the intake supplies chamber 33 and the combustion gases are expanded in turbine 9 and then in nozzle 3, the gas generator rotor 12 being halted. The air in conduit 14, Fig. 1 is lead to a low-pressure compressor in a known arrangement of compound jet engine in which ducts 1, 2, which may be wholly or partly separated, terminate in separate convergent-divergent variable geometry nozzles 3 and 4 having a common or variable geometry intakes 5 and 6. Compressor 7, delivers air via conduit 14, valve 15 into a combustion chamber 16 which supplies a turbine 17. The turbine 17 is coupled by shaft 18 to a low pressure compressor 19 provided with means 24 for changing the angle of fixed bladings 25, 26. Air passing through annular duct 20 is heated at 27 and after mixing with gases from turbine 17 may be reheated at 22. Specification 955,013 is referred to.
Patent GB-712349-A (GB)
Title: Improvements in or relating to frequency modulated carrier wave transmitters
Inventor: MORTLEY WILFRED SINDEN
IPC: H03C3/12
Filed: 1952-02-20
Abstract: 712.349. Frequency modulation. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 6, 1952 [Feb. 20. 1952], No. 4531/52. Class.40 (5). [Also in Group XXXV] In a frequency modulating circuit in which a high-Q resonator X is coupled through a quarter-wave line Q to an oscillator G and modulator B, as in Specification 618,967, two voltages in phase opposition from one end of the line 1 are combined with voltage from the other end of the line 3 in a difference detector DD, the modulator B being controlled by a differential circuit DA to which are applied the modulating signals at M1 and the output from the difference detector. At the mid-frequency, the output from terminal 3 is very small and the difference detector is arranged to produce zero output. During modulation a linearizing voltage of correct amplitude and sign is produced and applied to modify the modulating signal voltage. At the same time the centre frequency is automatically stabilized, if drift occurs. The out-of-phase voltages from point 1 are produced at the ends of a half-wave line Q2. Amplitude modulation is removed by a feed-back circuit comprising an amplitude detector D and low pass filter LPF controlling the amplitude of the output of oscillator G.
Patent GB-597409-A (GB)
Title: Improvements in and relating to continuous feed kinematographic apparatus
IPC: G03B41/08
Filed: 1945-02-23
Abstract: 597,409. Kinematograph apparatus. MAYTUM, J. A., and SMITH, L. Feb. 23, 1945, No. 4636. Addition to 597,090. [Class 97 (i)] A continuous feed projector has duplicate light paths for illuminating successive portions of film and uses one or more square section compensating prisms enclosed, as in the parent Specification in a shutter or shutters which prevent light from falling on more than one face at a time. The projector may be modified for use as a camera. In the projector shown in Fig. 1, the film 6 is illuminated by a lamp 11 with condenser 12, and passes round a drum 14 with apertures between transverse bars for successive frames. Two prisms 9, with reflecting surfaces 10, are arranged, one above the other, to receive light from successive portions of film and to pass it through compcnsating prisms 21 enclosed in shutters 22 and through objectives 13. One compensating prism is 45 degrees in advance of the other. The light source may be placed within the drum 14, or the light may be reflected into the drum by a rhomboidal prism as shown in dotted lines. In the form shown in Fig. 4, the axes of the objectives 13, 19 are inclined at 45 degrees and intersect in a single common compensating prism 21. A single light source .11, with a reflecting prism 17, is provided, and two condensers 12, 18. The beam from the objective 19 is superimposed on the screen, with that from the objective 13, by a doubly reflecting prism 20 with a silvered surface at 23. The projector may be used for stereoscopic projection, the duplicate light paths being used for the left- and right-eye views, one being projected on to a main screen and the other on to a semi-transparent screen in front of it. The camera may be used for stereoscopic kinematography, taking left- and right-eye views alternately through the two objectives.
Patent GB-1325985-A (GB)
Title: Lens focusing mechanism
IPC: G03B21/11
Filed: 1972-02-01
Abstract: 1325985 Lens focussing mechanism NATIONAL CASH REGISTER CO 1 Feb 1972 [25 Feb 1971] 4638/72 Headings G2A and G2J A microfilm projection reader incorporates a lens 40 which is carried by an axially slidable but not rotatable holder 41, which carries camming surfaces 56. A rotatable but not axially movable member 58 has lugs 57 which engage the surfaces 56, so that rotation of the member 58 causes axial movement of the lens. When the lens 40 is to be replaced spring loaded member 51 is swung upwards and a new assembly of lens, holder and camming surfaces is placed within guide sleeve 35.
Patent GB-1520042-A (GB)
Title: Method and apparatus for the continuous manufacture of honeycomb core structures
IPC: B31D3/02
Filed: 1976-02-05
Abstract: 1520042 Honeycomb core structures HONYCELL CORP SA 5 Feb 1976 [13 Feb 1975] 04642/76 Heading B5N A honeycomb core structure is produced by applying adhesive to web 4, e.g. paper in a pattern of transverse strips 11, cutting the web into continuous longitudinal strips 21 having a width 6 equal to the desired thickness of the honeycomb core structure by drawing the web over a driven counter-roller 16 having a hard surface and slitting it by means of an assembly of cutter wheels 18 mounted for free rotation in side-by-side parallel relationship and mounted in a common pivotally mounted block 17, all but one of the resultant strips having transverse stripes of adhesive spaced by a spacing which determines the size of the honeycomb cells in the completed structure, angularly deflecting the cut strips in to planes that are substantially parallel to the plane of transport of the strips prior to the deflection thereby stacking the strips on to each other to form a continuous ribbon 23 wherein the transverse strips applied to adjacent strips are staggered by half the spacing 1. Compressing the ribbon to secure adherence of adjacent strips to each other at the stripes applying similar transverse adhesive stripes to one side of the ribbon, cutting the ribbon into blocks of strips in lengths corresponding to the width of the expanded core structure and assembling a number of blocks side-by-side to form a uniform slab which can be expanded to form a honeycomb core structure. Adhesive may be applied to the web by means of roller 8 fitted with a plurality of rings 9 of synthetic material adjustably fixed on roller 8, each ring being provided with spaced projections 10 to which adhesive in receptacle 13 is applied by immersion roller 12 having a scraper roller 14. The strips are deflected by shafts 22 which lie in a horizontal plane in parallel relationship at an angle of 45 degrees to the direction of supply of the strips. The strips may be pressed together between conveyer belts, the top surface provided with a pattern of adhesive stripes and the ribbon cut into blocks of the desired length using a circular saw. The blocks of strips are glued together laterally while held between pressure plates.
Patent GB-160759-A (GB)
Title: Improvements in production of aluminium chloride
IPC: C01F7/60
Filed: 1921-02-11
Abstract: Aluminium chloride is produced by the action of chlorine on aluminium nitride.  A tube-furnace is packed with briquettes of the nitride which may contain small percentages of alumina and carbon, and is heated internally, for example by means of burning gases.  When the necessary temperature has been reached, the latter are cut off and chlorine is introduced.  Aluminium chloride sublimes and is collected, and the process is rendered continuous by introducing regulated quantities of aluminium nitride at the top of the furnace and removing the residue from the bottom.  The Specification, as open to inspection under Sect. 91 (3) (a) states that the chlorine may be generated in situ and refers also to the treatment of aluminium nitride with any halogen gas.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1077456-A (GB)
Title: Improvements in or relating to the manufacture of thin layers of high purity material
IPC: C23C14/00
Filed: 1966-02-04
Abstract: In a process for depositing a material from the gas phase on a substrate by a reversible action, the reaction is controlled by varying the pressure of the gas in the reaction chamber.  Reversal is effected mainly to clean the substrate.  Examples described are V, Si and Ti with iodine, Zr with chlorine, bromine or iodine, Nb with chlorine and bromine, Ta with chlorine and bromine, and Cu with Cu2O-HCl.  The substrate may be of the same material as that being deposited and may be quartz, carbon, silicon carbide, refractory oxides, and silicon.  When semi-conductor materials are being deposited, doping materials may be added.  The gas may be flowed through or remain in the reaction chamber.ALSO:In a process for depositing silicon from the gas phase, e.g iodine vapour on a substrate by a reversible action, the reaction is controlled by varying the pressure of the gas in the reaction chamber.  Reversal is effected mainly to clean the substrate.  The substrate may be of the same material as that being deposited and may be quartz, carbon, silicon carbide, refractory oxides, and silicon.  When semi-conductor materials are being deposited, doping materials may be added.  The gas may be flowed through or remain in the reaction chamber.
Patent GB-1204085-A (GB)
Title: Process for preparing foamable beads
IPC: C08J9/18
Filed: 1969-01-29
Abstract: 1,204,085. Foamable styrene polymer beads. DART INDUSTRIES Inc. 29 Jan., 1969 [9 Feb., 1968], No. 4949/69. Headings C3C and C3P. Foamable beads are made by impregnating thermoplastic beads comprising a styrene polymer, e.g. polystyrene with optionally a butadiene/styrene copolymer, in the absence of water with liquefied butane under conditions sufficient to maintain the butane as a liquid and removing excess butane from the beads e.g. by filtering, centrifuging or flashing. The beads may be aged by tumbling ' and may expanded to form molded cups, packaging materials, refrigerator and structural components and insulation board.
Patent GB-1489262-A (GB)
Title: Process for dyeing and finishing textiles
IPC: D06M101/16
Filed: 1975-02-06
Abstract: 1489262 Fixation of dyes on textiles; finishing textiles BRUCKNER APPARATEBAU GmbH 6 Feb 1975 [28 Feb 1974 12 July 1974] 5012/75 Headings D1B and DIP Synthetic or native fibres e.g. polyester which have been treated with a solution or dispersion of dye or finishing agent is then treated prior to drying at less than 30‹C with air enriched with the vapours of a halogenated hydrocarbon (i.e. halogenated derivative of methane or dihalogenated ethane or ethylene compound) of boiling point below 85‹C. The enrichment of air with halogenated hydrocarbon is effected by passing air through liquid halogenated hydrocarbon e.g. methylene chloride. The halogenated hydrocarbon may be removed afterwards by the action of steam or hot water. A polar solvent e.g. benzyl or n-butyl alcohol used as a swelling agent may be added to the solution or dispersion of dye or finishing agent, e.g. flame proofing and antistatic agents. Cellulose, wool and synthetic fibres are treated.
Patent GB-768244-A (GB)
Title: Pressure containers for fire extinguishers and method of making the same
IPC: A62C3/02
Filed: 1954-02-19
Abstract: 768,244. Making fire extinguishers. JONES & CO. (ENGINEERING), Ltd., S., and PHILLIPS, C. H. Feb. 21, 1955 [Feb. 19, 1954], No. 5024/54. Classes 83 (2) and 83 (4). Soldered seamed joints.-A tool for making swaged circumferential j joints between the parts of the pressure containers of fire extinguishers comprises a cranked mandrel 11 carrying a circumferentially grooved wheel 8 and a driven conventional mandrel 5 with a circumferentially flanged wheel 6 and means for adjustment of the distance between the axes of the wheels. The wheel 8 is provided with knurled shoulders 9 and the flange of the wheel 6 is also knurled. A handle 13 enables the mandrel 11 to be rotated to bring the wheel 8 towards or away from the wheel 6. In forming a swaged joint 4 between the steel top cap 2 and the container body 1 of a fire extinguisher, the neck ring of the cap surrounds the straight shank of the mandrel 11 and the swage wheels are brought together over the overlapping edges of the parts to form the joint by applying pressure to the handle 13. Finally, the joint is redipped in lead or solder to seal any remaining leaks.
Patent GB-197437-A (GB)
Title: Improvements in the sound horns of sound recording and reproducing instruments
IPC: G10K13/00
Filed: 1922-02-21
Abstract: 197,437. Pedley, A. Feb. 21, 1922. Sound magnifying and directing appliances.- A gramophone horn of the curved or returnpassage type, particularly for use in a cabinet, is made in two parts A, B, shown in plan, the inner member A being fixed with its axis not tangential to but within the tangent at an angle a with the axis of the curved member B, so that axiallydirected sound waves strike the bend at a point d. The inner member A has a right-angled bend extending downwards from the tone-arm in a plane at right-angles to the central plane of the bend B. The horn may be of three-ply wood lined with shellac, and may be of rectangular section throughout or of circular cross section at the inner end gradually changing to rectangular section, this change of section baing applied either to the whole horn or to the member A only. Specification 143,027 is referred to.
Patent GB-987037-A (GB)
Title: Pneumatic relay
IPC: F15C4/00
Filed: 1963-02-07
Abstract: 987,037. Fluid-pressure servomotor control systems. ROBERTSHAW CONTROLS CO. Feb. 7,1963 [Feb. 28,1962],No. 5070/63. Heading G3P. A pneumatic relay has an output signal P o  equal to the input signal P s  for values of P s  up to a first predetermined value, the output signal is then maintained at this value until the input signal reaches a second predetermined value and for values of P s  above the second predetermined value,the output signal is substantially equal to the input signal less the difference between the predetermined values. The relay is shown in the position prior to the signal pressure P s  being fed to an inlet 46. The signal pressure first closes a non-return valve 60 and the fluid flows past on valve 50, loaded to the open position by a spring 90 acting on a diaphragm 32, to an outlet chamber 40 having an outlet port 43. The valve 50 has a stem 52 which normally closes a passage 68 connected to atmosphere through ports 70,42. When the signal pressure reaches the first predetermined value, the pressure in chamber 40 acts on a second diaphragm 30 to close the valve 50. The space above the diaphragm 32 is vented to atmosphere through passage 160 and bore 122 of a pilot valve until the signal pressure reaches the second predetermined value. The pilot valve is similar in construction to the main valve having a valve closure 110 and stem 112 which can seat at 126 to close the passage 122. The member 120 is fixed to the two diaphragms 34,36 which in this case are loaded by two springs 128,150 such that the valve 110 is normally closed and the passage 122 opened. The signal pressure P s  is fed through passage 158 to act on the upper side of diaphragm 36. As the signal pressure increases,the member 120 moves downwards and when this pressure reaches the second predetermined value,the passage 122 is closed and the valve 110 opened to allow flow to the chamber 130 and through passage 160 to act on the upper side of diaphragm 32. The fluid acting on the upper side of the diaphragm 32 again opens the valve 50 to allow flow to the chamber 40 and outlet 43. The relay may be used to supply actuating pressure to a servomotor controlling the fresh air damper of a ventilating system. The damper is then first moved to a minimum position called the "hesitation point" and then further actuated at the so called "finish point".
Patent GB-253966-A (GB)
Title: An improved variable driving gear, suitable for motor road vehicles
IPC: F16H29/08
Filed: 1925-02-25
Abstract: 253,966. Shaw, J. S. Feb. 25, 1925. Variable-speed and reversing ratchet gearing comprises variable lever linkages arranged in two groups driving separately two shafts such as the part axles H of a vehicle. An engine shaft A, Fig. 2, through bevel gearing drives the two crank-shafts B of the separate gearing units. Each crank through a short link C oscillates a lever D, Fig. 1, about a fixed pivot d<1>. Blocks e<1> slidable in unison in slots d<3> in the levers D to vary the speed are connected by links E to the oscillators F of reversible friction ratchets surrounding the driven shafts H. Each one-way device comprises elliptical pawls M which stub between the oscillator F and an inner rotor F'. The pawls M are connected by spring arms m<3> to slots in a plate N so that they can be rocked in unison to reverse the drive. Each reversing plate N has a central helical groove n<3>, Fig. 3, engaged by a pin h<2> projecting from a block n<4> upon a slidable rod n<3> within shaft H and operable from a sliding ring O.