baber/WOPTO huggingface dataset:
Patent GB-863521-A (GB)
Title: Method of and apparatus for mechanically working plastic masses
IPC: B29C48/76
Filed: 1959-05-26
Abstract: 863,521. Mechanically working plastic materials. WACKER-CHEMIE G.m.b.H. May 26, 1959 [May 28, 1958; Dec. 5, 1958], No. 17939/59. Class 86 [Also in Group V] Plastic material e.g. polyvinyl chloride issuing from the annular passage of the plasticiser described in Specification 758,513 is cut by means of a knife F and drops on to a worm H, which conveys the material to a perforated plate J. The material is moulded into the required shapes as it is forced through the plate J. Alternatively rotary knives may granulate the material as it leaves the plate J. To get rid of entrapped air, the material may be transported to the worm in vacuo by means of extensions 5, 12, Fig. 3, of the rotor and its casing respectively. The rotor 7 is constructed as in Specification 759,632 and splits the material into rods as it approaches the extension 5, where a knife 14 separates the extruded plastic. The worm 3 is housed in a cylinder 2 in gas-tight connection with the extension 12 so that the space surrounding the extension 5 can be evacuated by means connected to a pipe 13. Provision is made for heating or cooling the material by means 6, 4.
Patent GB-179543-A (GB)
Abstract: 179,543. Schubiger & Co., A. May 4, 1921, [Convention date]. Ear instruments.- An apparatus for testing the hearing of persons consists of an inclined plate 5 which may be of lead, in a frame 4 which is fixed to a stand 2. The upper end of the stand is provided with a funnel-shaped cavity 3 through which balls 11 of metal or other hard material are dropped. A wire yoke 10 hinged to the stand carries a net or bag 6 to catch the balls when they leave the plate; this yoke can be folded into the dotted position when not in use. The plate 5 may be interchangeable with others of different materials and the apparatus may be constructed with the funnel 3 adjustable with reference to the plate 5 to regulate the distance through which the balls 11 drop.
Patent GB-770264-A (GB)
Title: Compositions of para-bromophenols and method of stabilizing the same
Filed: 1955-06-21
Abstract: The invention comprises a method of inhibiting the discoloration and decomposition of certain para-bromophenols on exposure and during manufacture, e.g. on distilling, by adding a stabilizing quantity of a lead phosphate, and compositions of the said parabromophenols with lead phosphates.  Examples describe the stabilization of p-bromophenol, 4-bromo-o-cresol, 4-bromo-2-phenylphenol, and 2 : 4-dibromophenol with lead orthophosphate, lead pyrophosphate, and lead meta-phosphate, followed generally by distillation.  Other parabromophenols specified may have a halogen, phenyl or alkyl substituent in any position and include p-bromo-m-cresol, 4-bromo-2-tert.-butylphenol, 4-bromo-2-ethylphenol, and 4-bromo-2-isopropyl- and -2-hexyl-phenols.  Other lead phosphates include lead hydrophosphate PbHPO4, dihydrophosphate Pb(H2PO4)2 and mixtures of such phosphates. They are added in anhydrous powder form and usually in proportion of 0.1 to 5 per cent.
Patent GB-563598-A (GB)
Title: Improved conveyor
IPC: B65G53/30
Filed: 1942-12-18
Abstract: 563,598. Heating systems. MARKS, E. S., and BLEECK, A. W. G. Dec. 18, 1942, No. 18026. [Class 64 (ii)] [Also in Group XXX] A conveyer system comprises a conduit containing a gel fluid and means for moving the fluid in the conduit for transferring articles or materials by flotation from one point to another therein. Materials, e.g. coal, may be floated direct on the fluid and separated therefrom by grids at the point of delivery or the materials, &c. may be carried in boats, trays, &c. A complete system consists, e.g. of a ditch set at an angle of up to ten degrees from the horizontal in which the fluid is moved by pump or pumps, by which the velocity of flow may be regulated, a suction sump for the pump, and a pump discharge, pipe system connecting with the conveyor head ditch. Remote control means for stopping the system with the materials, &c. opposite unloading points, may be provided if the pumps are driven electrically. Details are given of the preparation of a suitable fluid which may consist of an aqueous thixotropic suspension of bentonite or clays loaded, e.g. with barytes, iron oxide, galena slimes or the like. The conveyer system may also be employed for heating buildings by using a gel fluid capable of storing and radiating heat.
Patent GB-389337-A (GB)
Title: Improvements in or relating to hand-operated vacuum cleaners
IPC: A47L5/04
Filed: 1932-06-25
Abstract: 389,337. Vacuum cleaners. TREPPENHAUER, M., 31, Pohlandstrasse, Dresden, Germany. June 25, 1932, No. 18028. [Class 8 (i).] In a hand-actuated vacuum cleaner employing a piston pump as exhauster, the piston and the valved bottom of the cylinder are formed with annular depressions of roof-like cross section, in the walls of which the air inlets covered by flap valves 19, 25 are formed. The operating handles 8 are pivoted to links 10 which at their other ends carry lever catches 12, 13 by which the cap 5 is held in place. A support 15 in the cylinder connects the links 10 and may carry the valved bottom. Packing 3 wipes lubricant from the piston-rod, and a plate 22 protects the piston valves from oil drippings.
Patent GB-257710-A (GB)
Title: Improvements in or relating to transformers for alternating current electric arc welding apparatus
IPC: B23K9/10
Filed: 1925-07-14
Abstract: 257,710. Owen, F. C. July 14, 1925. Transformers intended for supplying a substantially steady current to welding electrodes are provided with a primary winding comprising three coils 2, 3, 4 arranged one on each of three sides of a rectangular iron core 1, and with a secondary winding in two sections 10, 11 one of which embraces the intermediate primary coil 3. The secondary winding is provided with tappings connected as shown to two multiple way switches 14, 21, the arrangement being such that the welding electrode 17 may be connected in circuit with either a portion only of the secondary section 10 by placing the switch arms 15, 22 on the contacts 26, 20 respectively, or with any desired number of turns of the section 11 by placing the switch arms on the contact 24 and the appropriate tapping stud, or with the whole of the section 10 and any desired number of turns of the section 11 by placing the switch arm on the contact 20 and the appropriate tapping stud. The transformers may be oil-or aircooled, and are enclosed in wood, cast iron, steel, or aluminium cases.
Patent GB-1380886-A (GB)
Title: Static corrections for seismic traces by cross-correlation method
IPC: G01V1/36
Filed: 1973-04-13
Abstract: 1380886 Seismic signal processing CHEVRON RESEARCH CO 13 April 1973 18061/73 Heading H4D To determine seismic reflection trace static corrections, comprising individual source-todatum plane and geophone-to-datum plane corrections, (a) the traces are cross-correlated in pairs to measure their mutual time-lags, (b) each time-lag is considered as the sum of time components to establish a set of simultaneous linear equations in which the unknowns are source-todatum time components, geophone-to-datum time components, subsurface structural reflection time components, residual normal moveout components and possible error components, there being one equation per time-lag and more equations than unknowns, and (c) solving the set of equations by minimizing the sum of the squares of the amounts by which the individual equations are not satisfied by their common solution. In the Fig. 8 embodiment constraints are put on the time components before setting up the simultaneous equations. Thus the source-todatum and geophone-to-datum components are defined in terms of their field-estimated values, and data reduction is effected for the subsurface reflection time and residual normal moveout components by interpolating between reference unknown reflection and moveout components associated with, e.g. every tenth trace. This data reduction is possible since these reflection and moveout components vary smoothly from trace to trace. The traces paired for the crosscorrelation are selected from ones associated with (a) common sources but different geophones, (b) common geophones but different sources, (c) common offset distances and/or (d) common depth points. The equations involving the correlation time-lags are reduced to a non- redundant set of "normal equations" which are solved to determine the static corrections. The corrections may be applied to the original traces and the whole procedure iterated to refine the corrections.
Patent GB-471393-A (GB)
Title: Improvements relating to pipe joints
IPC: F16L13/06
Filed: 1936-06-30
Abstract: 471,393. Pipe joints. STEW ARTS & LLOYDS, Ltd., and DAWSON, H. June 30, 1936, No. 18103. [Class 99 (i)] In a pipe joint of the kind in which the adjacent ends of pipes a, a are enlarged at b, b to locate a bush c adapted to provide continuity of bore and are secured together by a ring h of welding metal, the weld is relieved of stresses due to fluid pressure within the pipes by a segmental muff e, the internal periphery of which is channelled and formed with chamfered edges # to co-operate with chamfered surfaces d on the said enlargements b, b. The outer surface of the bush c may be grooved at i to receive part of the welding metal h.
Patent GB-976880-A (GB)
Title: Improvements in or relating to the production of variable pressure, more especially in pneumatic suspension systems of vehicles
IPC: B60G11/27
Filed: 1962-05-10
Abstract: 976,880. Pneumatic springs. IDEAL-STANDARD Ltd. May 10, 1962 [May 12, 1961], No. 18103/62. Heading F2S. [Also in Division B7] A motor vehicle suspension comprises a pneumatic spring, the pressure in which is varied in response to changes in the vehicle height, such changes being used to control a system for heating a liquid whose vapour provides the medium in the pneumatic spring. The system, Fig. 2, comprises a pneumatic spring 4 connected through an expansion chamber 5 and condenser 6 to an evaporator 7 which is heated by water from the vehicle cooling system, the spring 4 being located between sprung and unsprung portions 10 and 11 of the vehicle. The condenser is cooled by a current of air controlled by louvres 8 mechanically connected so as to be opened or closed by changes in height between the parts 10 and 11 of the vehicle. In addition, a valve 9 controlling the flow of heating liquid to the evaporator 7 may be included and operated through a rod 13. When the height of the vehicle diminishes, the louvres 8 are closed and the valve 9 opened to cause an increase in the pressure in the system. The vehicle suspension may include four pneumatic springs, each associated with such a system, the condensers of which are located adjacent the vehicle radiator which is divided into four sections, Fig. 3, each section having a closed circuit through an evaporator 7 controlled by a valve 9.
Patent GB-725893-A (GB)
Title: Improved lubricating means for the mould in continuous casting
IPC: B22D11/07
Filed: 1953-06-30
Abstract: 725,893. Continuous casting-machines. EISENWERKE GELSENKIRCHEN AKT.-GES. June 30, 1953 [June 30, 1952], No. 18119/53. Class 83 (1). Lubricating-apparatus for a continuous-casting-machine moves relative to the mould and discharges lubricant on to the forming surfaces of the mould so as to provide a continuous film of lubricant thereon. Metal is poured into the annular space 3 from a rotary pourer 4 which is mounted on a bearing 9. The bearing carries tubes 10, 11 with apertures 12, 13 for guiding lubricant to the inner wall of the mould 1 or the outer surface of the core 2.
Patent GB-348920-A (GB)
Title: Hydraulically driven rotary pump
IPC: F04C11/00
Filed: 1930-06-13
Abstract: 348,920. Rotary pumping machines. SOC. ANON. BIROTOR, 161, Rue St. HonorÚ, Paris. June 13, 1930, No. 18149. Convention date, July 13, 1929. [Class 110 (ii).] A pumping unit comprises a hydraulic turbine combined with a rotary pump of the positive displacement type, the hub of one member forming the body of the other member, and the shaft serving as the delivery pipe. In the construction shown the turbine hub B carrying the turbine vanes A serves as the pump casing; the casing is divided by a partition b<1> into two chambers in each of which is a rotor C supported by an eccentric k on a fixed shaft K on which the cover plate b of the turbine hub rotates. A piston vane G rigidly secured to the casing B engages slots in the two rotors C. Water enters by ports H in the hub and is discharged through ports I in the rotors C and ports J in the eccentrics to the fixed hollow shaft K.
Patent GB-1088307-A (GB)
Title: Method of and apparatus for forming a pattern of grooves in thermoplastic sheet material
IPC: B44C1/02
Filed: 1966-04-26
Abstract: 1,088,307. Engraving. N. H. MARTIN AGENCIES PTY. Ltd. April 26, 1966 [May 3, 1965], No. 18165/66. Heading B6J. A pattern of grooves is formed in a sheet of thermoplastic material, e.g. foamed plastic, by moving the sheet 17, Figs. 1 and 2, on chains 11 beneath a carriage 22 to which are secured a plurality of electrically heated rods 24 which project into the surface of the sheet. The carriage can be reciprocated transversely through an adjustable crank 27. The amplitude and speed of the reciprocation of the carriage can be varied and the speed of the sheet movement varied or reversed so as to vary the pattern of grooves, which may be an intersecting pattern, the latter also being obtainable by passing the sheet through a second time at right angles. A roller 31 maintains the sheet flat until it has cooled sufficiently to avoid curling. Vertical reciprocation of the carriage by cams may be effected to vary the depth and thus, if the rods are tapered, the width of the grooves. The rods may be hollow, and may be U-shaped metal loops or loops of insulating material wound with resistance wire.
Patent GB-372987-A (GB)
Title: Improvements in or relating to embossing machines for address-printing plates consisting of thin sheet metal
IPC: B41J3/38
Filed: 1931-06-24
Abstract: 372,987. Embossing-machines. ADREMA MASCHINENBAUGES., 62, Alt Moabit, Berlin. June 24, 1931, No. 18295. Convention date, June 24, 1930. [Class 100 (iv).] Line-spacing mechanism.-In embossing- machines for making printing-plates and comprising a plate-carrying slide movable for linespacing or a letter-spacing carriage, the platecarrying slide is spring-urged and is line-spaced by means of key-controlled escapement mechanism. In the mechanism shown in Figs. 2 and 5, a slide 6 carrying the plate is movable for linespacing in a letter spacing carriage 4, racks 11 on the slide engaging pinions 10 on a shaft 9 which is mounted in the carriage and is provided with a spring 22 for driving the slide in linespacing direction. An escapement wheel 16 on the shaft co-operates with spaced teeth 241, 30<1> on arms 24, 30 pivoted on the carriage and connected to springs 26, 12. The arm 24 is provided with a line-spacing key 27, and the arm 30 is provided with a screw 33 resting on the arm 24. A carriage-returning and linespacing lever 39 pivoted on the carriage has an incline 43 co-operating with a finger 28 on the arm 24. The teeth 24<1>, 30<1> are normally in and out of engagement with the escapement wheel respectively, and an operation of the key 27 or lever 39, the escapement wheel steps forwards and the slide is line-spaced. A pin 29<1> on the escapement wheel co-operates with a pin 29 on the carriage to arrest the slide after the maximum number of line-spacing movements. The arm 30 co-operates with a cam on a carriage-releasing lever 35 and has a pin 32 engaging the arm 24. When the carriagereleasing lever is raised, the escapement wheel is released and the slide can be adjusted in either direction. The escapement wheel is pinned to a knob 17 and is held in engagement with a cone on the shaft 9 by means of a nut 20. Two line-spacing mechanisms, for alternative use and having escapement wheels of different pitches, may be arranged at opposite ends of the shaft.
Patent GB-1143012-A (GB)
Title: Tunnelling method and apparatus
IPC: E21D11/15
Filed: 1966-04-26
Abstract: 1,143,012. Tunnels &c. P. L. KOSOGORIN. 25 April, 1967] 26 April, 1966], No. 18276/66. Heading E1F. In apparatus for tunnelling or trenching according to Specification 945,532, some of the slats have the leading end wider than the trailing end. Three corrugated metal slats pass through each hole in the frame 10, the two slats A having the wider leading ends, and a parallel slat B serving to spread the slats A. Indentations on the edges of slats A form apertures 22 for the injection of fine grout into the space behind the slats. After the grouting a reinforcing mesh 28 is fixed inside the frames, and shuttering 29 is erected to permit the completition of the lining with constructional concrete. Some of the slats comprise metal rods which may be spread apart to act as reinforcing.
Patent GB-979502-A (GB)
Title: Improvements in or relating to the production of crimped electrical connections
Inventor: WALTON WILLIAM
IPC: H01R43/042
Filed: 1960-05-25
Abstract: 979,502. Crimping pliers. PLESSEY CO. Ltd. May 24, 1961 [May 25, 1960], No. 18405/60. Heading B4W. [Also in Division B3] A crimping tool for making electrical connections by deforming a sleeve over wire connectors comprises three or more die members 1, 2, 3, 4 which are arranged to form by their sides a a continuous profile and are movable relatively to each other so that the dimensions of the profile are reduced without substantial alteration of its geometrical shape, mechanical means being provided to effect the constriction and therefore the desired crimping. The dies are arranged to slide on guide members 7, 11, 9, 20, 8 between side plates 6 to provide the variable closed profile between their adjacent sides a. The workpiece to be crimped is received in an aperture 18 which is formed in the side plates 6 in alignment with the closed profile and has an entry channel 19. The die 4 is normally held in the fixed position as shown by means of a nose 21 on an arm 17 and the die 3 is held by a cam 16 on an arm 15 against the spring-urged dies 1, 2. In operation, the die 4 is first retracted by moving the arm 17 away from the arm 15, thus allowing a tension spring 25 to pull the die away from the entry channel 19. After insertion of the workpiece, the die 4 is returned ready for the crimping operation which is performed by movement of the arm 15 towards the arm 17. When crimping, the die 3 is forced inwardly on to the workpiece and at the same time coacts with the die 1, forcing it up the incline 13 and on to the workpiece. After completion of a crimping operation, springs 10 assist in opening out the profile by sliding the dies along the guide members. Pre-setting means to suit the size of sleeve employed may comprise flat packing pieces 3a as shown, or an adjustable pivot-pin 16 for the arm 15. The dies may also be hydraulically-operated and, if desired, the sides of the polygonal workreceiving profile may be in the form of arcs.
Patent GB-582849-A (GB)
Title: Improvements in and relating to noise reduction in radio location and communication systems
IPC: G01S7/292
Filed: 1943-11-05
Abstract: 582,849. Radiolocation; pulse signalling. BRITISH THOMSONHOUSTON CO., Ltd. (General Electric Co.). Nov. 5, 1943, No. 18439. [Class 40 (v)] In a radio receiver for detecting repetitive pulses, noise is reduced by applying the pulses to the receiving instrument through a filter arranged to pass only the fundamental and/or the harmonics of the pulse frequency. The system may be applied to communication receivers, or to receivers of reflected pulses in radiolocation. The carrier waves received on the aerial 10 pass through amplifiers 11, 12 to a detector 14 with load resistance 16, 17 which provide A.V.C. control voltage to the amplifier 11 and apply a pulse voltage A to the grids of valves 30. The anode circuits 24... 27 of these valves are tuned respectively to the fundamental pulse frequency and to its harmonics, the circuits 24, 25 comprising lumped impedances, the circuit 26, a transmission line of quarter-wave-length to pass odd harmonics, and the circuit 27 a transmission line oneeighth of a wave-length, or an odd multiple thereof, to pass the even harmonics. The output of the filter passes through amplifiers 31 and is re-combined at the receiving instrument. In the case shown, this instrument is a cathode-ray tube 37 with a saw-tooth time base applied to one pair of deflecting-plates and with the re-constituted pulse applied to the other pair. The receiving instrument may alternatively be a device for comparing the phase of the reflected pulses with that of the pulses transmitted. As each pulse is transmitted, the receiver may be momentarily blocked by pulses, the frequency of which is the same as, or a multiple of, the transmitted pulse frequency.
Patent GB-323216-A (GB)
Title: Improvements in or relating to the treatment of artificial silk threads and filaments
IPC: D06P1/651
Filed: 1928-06-26
Abstract: 323,216. Brandwood, J. June 26, 1928. Circulating liquids through materials on perforated tubes and drums.-Unevenness in solid dyeing and raggedness of outline in parti-colour dyeing of artificial silk threads or filaments in wound package form are avoided by subjecting the packages to a preliminary application under pressure of a paraffin was emulsion insoluble in the dye liquor. In the application to threads the pressure is such as to cause the emulsion to penetrate between the filaments composing the threads. An emulsion such as Ramisit W.D. is specified as suitable. Preferably the package is mounted upon a central tubular perforated holder which is rotated rapidly while the emulsion is supplied centrally thereto. The apparatus described in Specification 311,803 may be used. The use of the dyestuff Chlorazol sky blue FF is referred to. Parti-colour dyeing may be effected as described in Specification 294,504.
Patent GB-1119289-A (GB)
Title: Diversity receiving system
IPC: H04B7/08
Filed: 1967-04-21
Abstract: 1,119,289. Diversity reception. INTERNATIONAL STANDARD ELECTRIC CORP. 21 April, 1967 [28 April, 1966], No. 18481/67. Heading H4L. In a diversity reception system in which each channel includes a local oscillator for converting the received signals to a common I.F., at least one of the local oscillators includes a crystal controlled oscillator and a voltage controlled oscillator coupled to the output of the crystalcontrolled oscillator, and phase control means are coupled to each of the channels to control the crystal-controlled oscillator and the voltagecontrolled oscillator to maintain the I.F. signals in a predetermined phase relationship for subsequent combining. As shown in Fig. 1, diversity channel 2 includes a mixer 3 and a local oscillator 5 comprising a crystal-controlled oscillator 7 and associated frequency multipliers synchronizing a voltage controlled oscillator 8 which is coupled via a multiplier 9 to the mixer 3, the diversity channel 2n including a mixer 3n and a fixed frequency local oscillator 5n. The outputs of the I.F. amplifiers 4, 4n are supplied to a phase comparator 6 which via a low-pass filter 10 " pulls " the frequency of oscillator 7 and via a high-pass filter 11 controls the phase of oscillator 8. By this means the signals in the two channels are brought into phase for combining at 12. In a modification, Fig. 3 (not shown), both local oscillators are as oscillator 5 and are controlled in antiphase by signals from the phase comparator. In a further arrangement which is suitable for any number of diversity channels, Fig. 4 (not shown), each local oscillator is controlled in the manner of oscillator 5, Fig. 1, and the I.F. amplifiers are connected via respective buffer amplifiers to a common output line. Each channel includes a phase comparator comparing the common output signal with the output of the corresponding I.F. amplifier to effect the required phase control of the local oscillator.