baber/WOPTO huggingface dataset:
Patent GB-756893-A (GB)
Title: Improvements in low temperature gas-mixture rectification columns
IPC: F25J3/00
Filed: 1954-06-18
Abstract: 756,893. Cold separation of gas mixtures. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. June 18, 1954 [June 22, 1953], No. 17953/54, Class 8(2). A low temperature rectification column 1 for separating gas mixtures e.g. air comprises an evaporator 5 having a heat exchanger e.g. fins 9, 10, 11 serving to cool air admitted through a duct 15, and a duct 12 through which the cooled air flows in heat giving relationship with packing within a metal tube 3 forming at least part of the working space within the column. In operation the air is drawn through cleaning vessels 20, 21 by a pump 16 before entering the column 1, gaseous oxygen is discharged through a duct 7 having its upper open end located above the level of liquid oxygen in the evaporator 5, and gaseous nitrogen is fed through a duct 22 to a refrigerator 18 and the resulting liquid returned as reflux through a duct 23. The refrigerator may be of the compression type or it may comprise a reversed hot gas engine machine as described in Specification 695,857 [Group XIII]. Specification 756,892 also is referred to.
Patent GB-254881-A (GB)
Title: Improvements in safety pockets
IPC: A41D27/20
Filed: 1925-07-14
Abstract: 254,881. Gloriel, G. E. July 14, 1925. Attaching watch pockets to wearing-apparel.- A watch pocket is made of chamois leather &c. with a whalebone or other stiffening strip D in a hem on the rear side, and with an extension or tab provided with a buttonhole B by means of which the pocket can be suspended from a button or the trousers.
Patent GB-1010945-A (GB)
Title: Tires and retreading same
IPC: B29D30/54
Filed: 1962-05-10
Abstract: 1,010,945. Pneumatic tyres. GOODYEAR TIRE & RUBBER CO. May 10, 1962 [Aug. 17, 1961], No. 17991/62. Heading B7C. A pneumatic tyre is retreaded by a length of uncured camelback 9 initially having the shape shown in Fig. 3 and reinforced by a ply 5 containing at least partially orientated lengths of filamentary material between and 2 inches long. The filamentary material may be filaments of rayon or nylon, old tyre cord, brasscoated steel wire, or rayon or nylon flock. Should the outer parallel cord carcass ply be damaged during buffing the material in the ply 5 may be orientated at the same angle as the cords in the carcass ply to compensate for the damage. The ply 5 may extend from one edge of the camelback to the other and may extend over the crown and shoulders of the tyre down to the sidewalls.
Patent GB-1536233-A (GB)
Title: Method of adhesively bonding polyvinylidene fluoride to a rigid substrate
IPC: B29C63/48
Filed: 1977-04-29
Abstract: 1536233 Lined steel pipe PRODUITS CHIMIQUES UGINE KUHLMANN 29 April 1977 [12 May 1976] 18092/77 Heading F2P [Also in Division B5] In a method of lining a steel tube with a polyvinylidene - fluoride lining, the surface of the lining to face the tube is coated with a film-forming polyurethane solution and the internal surface of the tube with a silane, the lining is placed within the tube and the space therebetween filled with a polyurethane forming reaction mixture.
Patent GB-865189-A (GB)
Title: Improvements relating to the sinking and lining of shafts
IPC: E21D1/08
Filed: 1957-06-07
Abstract: 865,189. Borehole linings. GUTEHOFFNUNGSHUTTE STERKRADE A. G. June 7, 1957 [June 30, 1956], No. 18264/57. Class 85. A method of sinking and lining a shaft comprises lowering an inner shell into an auxiliary shell 7 without frictional contact there-between and extending the auxiliary shell downwardly as the inner shell is lowered, the annular gap 8 between the shells being then filled with, for example, bitumen. The inner shell consists of two steel cylinders 1, 2 enclosing a concrete body 3 and rests on a cutting shoe 5 having a working scaffold 6 for extending the shell 7. The filling is introduced through radial bores 9.
Patent GB-672799-A (GB)
Title: Preservation of pigments in alfalfa and the like
IPC: A23K3/02
Filed: 1949-07-11
Abstract: 672,799. Preserving alfalfa &c, pigments. NATIONAL ALFALFA DEHYDRATING & MILLING CO. July 11, 1949, No. 18304/49. Drawings to Specification. Class 49. The loss of pigment, of carotene particularly, in alfalfa and like leafy vegetable matter, e.g. unjointed cereal grass, spinach, beet tops, is reduced by treatment with an agent comprising a light mineral or vegetable, tissue-penetrating oil of low volatility, in which is dissolved, with the aid of a solubilizer such as dodecylamine or orthoamino bicyclohexyl if desired, a small proportion of an alkoxy-, hydroxy-, or anilino mono substituted diphenylamine. Examples are concerned with incorporating into one ton of dehydrated alfalfa meal 2 lb. of diphenyl-p-phenylene diamine, isopropoxy diphenylamine, or p-hydroxy diphenylamine dissolved in 2 U.S. gal. of light mineral oil or cotton seed oil, and with spraying growing alfalfa, immediately before cutting and dehydrating artificially or in the sun, with a suspension of p-hydroxy diphenylamine in light mineral oil.
Patent GB-1120240-A (GB)
Title: Air intake duct for a gas turbine engine
Inventor: DAWSON LINDSAY GRAHAME
IPC: F02C7/045
Filed: 1966-04-26
Abstract: 1,120,240. Gas turbine engine air intakes. ROLLS-ROYCE Ltd. April 19, 1967 [April 26, 1966], No. 18312/66. Heading F1G. An air intake duct for a gas turbine engine comprises an upstream part which may be moved between a first position in which a gap is formed in the upper part of the air intake duct and a second position in which the gap is closed, there also being means for opening and closing the upstream part to air flow therethrough. The gas turbine engine shown is disposed within a pod 14 which comprises a fixed downstream part 15 and an axially-movable upstream part 16. The upstream part 16 may be moved axially from the position shown in Fig. 1 to the position shown in Fig. 2 in which an annular gap 20 is formed between the parts 15, 16. The axial movement is produced by means of the piston and cylinder actuator 22, 21. A pair of clamshell doors 23 pivotally mounted at 24 is provided, the doors being in the open position in the disposition shown in Fig. 1 but being moved to the closed position in the disposition shown in Fig. 2 so that the air intake to the engine is then through the annular tap 20. A pair of part-cylindrical shield members 25 is pivotally mounted at 26, the members lying in the recesses 27 in the disposition shown in Fig. 1 but moving to an open position in the disposition shown in Fig. 2, see also Fig. 3 so that the members 25 act as a baffle and prevent noise from the engine intake passing downwardly through the lower part of the annular gap 20. In a second embodiment the upstream portion of the intake structure is pivotally mounted on the downstream portion at the lowermost point. When the upstream portion is moved about the pivotal point an air inlet gap is formed at the upper part of the air intake structure. A pair of clamshell doors is provided in the upstream portion but the silencer baffle members are not required.
Patent GB-120051-A (GB)
Title: Improvements in or relating to the Manufacture of Power Gas and the Recovery of Hydrocarbon Oils.
Inventor: CHAMIER FREDERICK WILLIAM
IPC: C10J3/00
Filed: 1916-12-21
Abstract: 120,051. Chamier, F. W., Craig, H. J., and Moeller, J. F. L. Dec. 21, 1916. Producers; retorts.-In the production of power gas, the amount of light oil obtained from the fuel is increased by treating the fuel in two successive stages, a low-temperature stage in which steam, mixed with gas obtained from the second stage, is passed through the fuel, and a, high-temperature stage in which the final combustion of the fuel is effected bv mixed steam and air. The fuel in the chamber a<1> is treated with gases and steam, supplied by an injector H, at a temperature of from 450-650‹ C., the gaseous products being led to the condensing &c. plant K, J, K<1>, L. The coked fuel is passed by the valve C into the lower chamber a<2> where it is burnt by steam from the jet D and by air drawn through the grate a<4>. The gases from the lower chamber mainly pass through the steam-generator f to the scrubber L; part of the gas passes through a pipe f<2> to the injector H and the upper chamber. Instead of withdrawing all the gas from the generator and introducing the part required into the upper chamber, the partition a between the two chambers may be dispensed with, and part of the gas allow to ascend directly to the cooler zone, sufficient steam being introduced to reduce the temperature to the desired degree.
Patent GB-1122651-A (GB)
Title: Improvements in or relating to methods and apparatus for bending glass in sheet form
IPC: C03B23/035
Filed: 1965-04-30
Abstract: <PICT:1122651/C1/1> Sheet glass is bent by imposing on the heated sheet a differential gas pressure.  The sheet 7 is carried in a vertical position by means of rollers 5, 8, 9, through a heating section 1 to a bending section 2 where it passes between elements 10, the faces 11 of which are of the desired final shape, and which are constructed to discharge hot gas under pressure against the glass sheet. Electric heating elements 12 behind the elements 10 direct heat on to the glass sheet 7 and also heat up the elements 10 which are preferably of metal with perforated faces 11 so that they radiate heat on to the glass sheet 7.  The quenching section 3 has similarly shaped elements 10 through which chilling air under pressure is maintained to temper the sheet 7. The sheet 7 instead of direct contact with the rollers 5, may be placed on a metal bar having point contacts with the edge of the sheet, the metal bar being moved by the rollers 5.  The elements 10 may be movable but preferably are fixed and either are spaced further apart at the beginning of section 2 or have changing curvatures from flat to final curvature.  Reciprocating motion may be given to the conveyer for equalizing the temperature over the glass surfaces in heating and quenching zones.
Patent GB-470667-A (GB)
Title: Improvements in or relating to packings for pulverulent fuel supply devices for internal combustion engines
IPC: F02B45/02
Filed: 1936-02-12
Abstract: 470,667. Actuating valves. PAWLIKOWSKI, R. Feb. 12, 1936, No. 18352. Divided out of 470,272, [Group XXVII]. [Class 135] [Also in Groups XXVI, XXVII, and XXVIII] In a fuel supply arrangement for a pulverized fuel engine packing bands 1, 2, 3 of porous material e.g. felt, fabric, asbestos, or artificial resin sponge, &c., are arranged in grooves between a sliding element such as the piston 7, suction and discharge valves 10, 11 and inlet valve 12, and its guide to prevent metallic contact between the parts. The valves 10 and 11 are actuated by friction between the packing 1 and piston rod 30 and their stroke is limited by adjustable stops 35, 36 which may be controlled by the engine governor. in another arrangement, Fig. 4, the valves 10, 11 and 12 are arranged concentrically with the piston 7 and are all actuated from the piston by the frictional grip of the bands. The bands may be housed in the stationary or movable member and may be expanded or contracted by springs, a metal band preferably being arranged between the springs and bands.
Patent GB-201898-A (GB)
Title: Processes for halogenating the dry or substantially dry latices of india-rubber and the like and compositions and articles made therefrom
IPC: C08C19/14
Filed: 1923-07-17
Abstract: 201,898. Naugatuck Chemical Co., (Assignees of Hopkinson, E.). Aug. 3, 1922, [Convention date]. Paints; varnishes. - A waterproof finish forporous slabs made by halogenating a mixture of dried rubber latex and a filler such as kieselguhr consists of two coats of a paint consisting of 15 parts of titanium oxide, 0.2 part of raw sienna, 100 parts of a 20 per cent solution of chlorinated rubber in carbon tetrachloride, and 25 parts of solvent naphtha, and a finishing coat of 100 parts of chlorinated rubber solution in CCl4 and 50 parts of naphtha.
Patent GB-1186573-A (GB)
Title: Improvements in or relating to Television Transmitting and/or Receiving Systems
IPC: H04N7/12
Filed: 1967-04-21
Abstract: 1,186,573. Television. INTERNATIONAL STANDARD ELECTRIC CORP. 21 April, 1967 [23 April, 1966], No. 18475/67. Heading H4F. In a bandwidth reduction system for television signals in which selected e.g. alternate, picture elements are distributed between two (or more) successive television lines or fields for transmission, the information gaps which appear between the received picture elements of each line or field are filled in with the information of the preceding or succeeding picture-element in the event of equality of information content of the preceding and succeeding picture elements, or if the quality of information content of the preceding and succeeding picture element lies within a given tolerance; and wherein the gaps remain unfilled in the event of insufficient equality of information content of the preceding and succeeding picture elements. As shown, Fig. 2, the train of pulses corresponding to alternate picture elements is applied via a delay line 2 to an adder 18, via delay lines 2 and 3 to a switch 14 and a differential amplifier 6 and directly to differential amplifier 6. Delay lines 2 and 3 each effect a delay #t corresponding to the period of a picture element. Depending on the output of differential amplifier 6, a switching pulse generator 9 derives switching pulses for application to the switch 14 and a variable amplifier 21. If the amplitudes of the two input pulses to differential amplifier 6 are the same, e.g. α and γ, Figs. 3a and 3c, there is no output voltage and pulse trains as shown in Figs. 3b and 3c are added in adder 18 to produce the pulse sum shown in Fig. 3d. When the non-delayed and the 2#t delayed signals are unequal, amplifier 6 produces an output signal which causes generator 9 to produce a switching signal to disconnect switch 14 and only the signal occurring at input 16 of adder 18 then appears at the output of amplifier 21. The consequential reduction of beam current, i.e. loss of brightness, during reproduction is compensated by regulating amplifier 21 via input 23 to a correspondingly higher amplification. Generator 9 may be arranged to generate a switching signal only after the amplitude differences exceed a tolerance threshold. If the generation of the switching signal is controlled as a function of the differential signal as applied to input 8 so that at the outputs 10 and 11 an amplitude variation appears which is dependent upon the absolute magnitude of the difference, switch 14 may be replaced by a variable gain amplifier which is similar to amplifier 21. As a result the inserted pulse will have an amplitude which is the average of the preceding and succeeding pulses.
Patent GB-1111703-A (GB)
Title: Improvements in or relating to elastomers
IPC: C08L23/16
Filed: 1966-04-27
Abstract: A vulcanizable composition comprises a natural or synthetic rubber and a phenol novolac-hexamethylene tetramine resin wherein the resin has been prepared by acid condensation of a diphenylol alkane of formula <FORM:1111703/C3/1> wherein R1 and R2 are hydrogen or C1-C8 alkyl groups, or R1 is phenyl, and formaldehyde or a formaldehyde-generating substance.  The preparation of the preferred phenolic resins is described and claimed in Specification 1,100,415.
Patent GB-202938-A (GB)
Title: Improvements in acoustic apparatus
IPC: H04R1/22
Filed: 1922-02-06
Abstract: 202,938. Baron, H., (Signal Ges.). Feb. 6,1923. Soundboxes.-Comprises the use in gramophones, telephones, microphones, megaphones, motor horns and the like of one or more tuned air-chambers, such as a Helmholtz resonator, for receiving sound energy from the air or transferring sound energy to the air, interposed between the sound-emitting or receiving point and the medium, and tuned to the frequency to be transferred or to mean speech-frequency. The air chamber 1 is closed on one side by a diaphragm 2, which is excited or damped by the magnetic system 3, 4, and opens into the free medium on the other side. The air chamber may be the only resonant part of the apparatus, or it may be associated with a tuned diaphragm or the like, the pitch of the latter being preferably the same as that of the chamber. The conditions may be so adjusted that one of the resonance frequencies of the system as a whole may lie below 700 and the other above 800 oscillations, so as to give a resonance band from about 500 to 1000 or 2000 oscillations. Reference has been directed by the Comptroller to Specifications 2909/77, 24809/05, 7654/06, 110,759, and 148,759 and 149,324, [both in Class 118 (ii), Signals].
Patent GB-237731-A (GB)
Title: Improvements in automatic couplings for railway vehicles
IPC: B61G1/36
Filed: 1924-08-05
Abstract: 237,731. Floryanowicz, J. Z. Aug. 5, 1924. Couplings, automatic, convertible to non-automatic.-In an automatic coupling of the chain and hook type in which the last link of the chain is held above the hook of the opposing vehicle to be engaged therewith on impact of the buffers, the chain is adapted to be temporarily shortened by means of a manually-operated shaft for the purpose of coupling or uncoupling the vehicles when the buffers are in contact or even compressed. The end link 47, Fig. 1, of the chain coupling is connected by links 45, 43, provided with a slotted connection 48 to facili. tate coupling on curves, to an arm 40 fixed to a transverse shaft 41 provided wit.h an operating-handle 42 at the side of the vehicle and with a tooth 49 to engage with a notch in a lever 50 pivoted on a transverse shaft 51 which is provided with an arm 50<2> abutting the end of the buffer rod 52 and moved rearwardly with it on collision of the vehicles. In the set position of the coupling, the tooth 49 is engaged in the notch in the lever 50, shown in dotted lines, and on impact of the buffers the shaft 51 is rotated to release the tooth 49 and permit the chain to drop over the opposing draw-hook. A rotary transverse shaft 54 provided with L-shaped lever arms 55 is attached to the headstock and is adaptted to be rotated by a handle at the side of the vehicle to cause the arms 55 to bear against the last link of the coupling chain to shorten the coupling when the vehicles are close together. When the draw-bar is in two axially displaoeable portions, Fig. 10, as described in Specification 206,645, it is automatically extended during the lifting movement of the chain coupling by a pivoted arm 74 connected by the link 77 to the jointed rod 43, a spring 77<1>, or weight, secured to the framing of the vehicle restoring the bar to its shortened position after the coupling has been effected. The draw-bar is retained in its extended position for automatic coupling by a spring plunger 93 secured to the transverse shaft 51, the plunger being rotated with the shaft on impact of the buffers. A forked lever 90 connected to a transverse shaft 91 is adapted to bear against the part 59 of the draw-bar to shorten it and allow the coupling chain to fall after being uncoupled when the vehicles are close together.
Patent GB-386236-A (GB)
Title: Improvements in cages for ball bearings
IPC: F16C33/38
Filed: 1932-07-01
Abstract: 386,236. Ball bearings. HOFFMANN MANUFACTURING CO., Ltd., New Street, Chelmsford, Essex.-(Assignees of Bott, G. R. ; 8, Howes Avenue, Stamford, Connecticut, U.S.A.) July 1, 1932, No. 18650. Convention date, Feb. 1. [Class 12 (i).] A ball-spacing cage consists of an annular ring 16 having ball pockets 17 opening out upon one lateral edge thereof and a pair of lugs 19 integral with the ring and projecting from the said lateral edge between each pair of pockets, the lugs of each pair being connected by a thin rupturable connecting portion. As shown, the ring 16 has cylindrical inner and outer faces, and the lugs 19, which are thinner than the ring, are bifurcated by drilling holes 20, of a diameter greater than the thickness of the lugs, from the opposite face of the ring nearly through the lugs. The balls are then assembled in the cage and a chisel-pointed tool 23 is inserted through the holes 20 to separate the pairs of lugs and bend them as shown at 25 into embracing relation with the balls. The cage is particularly suitable for use with doublerow bearings.
Patent GB-644389-A (GB)
Title: Electrical compression system
IPC: H03G7/02
Filed: 1947-07-15
Abstract: 644,389. Automatic volume control. RADIO CORPORATION OF AMERICA. July 15, 1947, No. 18849. Convention date, May 28, 1941. [Class 40 (iv)] [Also in Group XL (c)] In an audio-frequency compression system wherein a portion of the signal output of an amplifier is rectified and fed back to the amplifier so as to decrease its gain for outputs above a predetermined level, means are provided in the input of the rectifier to give preference to the unvoiced portions of the signal so as to produce an output signal whose spectral energy distribution is substantially that of the input signal. The embodiment shown comprises a variablegain compressor-amplifier, the input of which is applied via transformer 16 to the control grids of two variable-mu tubes 21, 22 connected in push-pull. This stage is resistance-capacity coupled to two triode tubes 31, 32 and thence to the output transformer 34. Normal bias for tubes 21, 22 is provided by resistor 37. The voltage generated at the secondary of transformer 34 is impressed on the selective control unit input transformer 50, the secondary of which is shunted by potentiometer 51 having a slider for adjusting the initial voltage applied to the grid of the triode amplifier 54, and an energy.discriminating network 60, 61. Triode 54 is transformer-coupled to the full-wave rectifier 64 which is given an initial bias from the voltage divider 70, 71, 72, an adjustable slider on resistor 71 controlling the level at which compression is initiated. The rectified current from 64 flows through resistors 76 and 41, and the voltage-drop developed across 41 biasses tubes 21 and 22. In prior compressors, e.g. that disclosed in U.S.A. Specification 2,255,683, this bias voltage varied in accordance with the average voltage changes across the secondary of the output transformer 34 and produced variations in gain in accordance with the short-period average value of the signal level. However, the spectral energy distribution of speech varies in accordance with the relative strengths of the voiced and unvoiced components thereof and since the latter components are of a much lower energy content, in order to obtain an undistorted output it is necessary to obtain a control voltage varying in magnitude with the frequency of the predominant components of the signal in a manner corresponding to the inverse characteristic of the average spectral energy distribution curve for speech. This is effected by the network 60, 61 which accentuates the amplitude of the highfrequency components of the signal applied to tube 54 so that substantially uniform compression is obtained for both voiced and unvoiced components of the signal. The output signals of the system are suitable for reproduction by a linear reproducer, without the use of an expander.
Patent GB-188861-A (GB)
Abstract: 188,861. Luce, L. L., and Mattson, L. Sept. 26, 1921. Pistons.-In an internal - combustion engine having two working pistons 12, connected to opposite cranks and annular pumppistons 5 attached to cranks of smaller throw and at 180‹ to the main cranks, the pump-space may be varied by adjusting longitudinally the face of the piston 5 by means of screws held rotatably in a web within the piston.