baber/WOPTO huggingface dataset:
Patent GB-176512-A (GB)
Title: Improved means for setting up loose-letter signs and notice boards
IPC: G09F7/08
Filed: 1920-12-08
Abstract: 176,512. Evens, T. N. Dec. 8, 1920. Signs, supporting and securing.-To facilitate setting up signs, notices, &c. letter by letter, the characters are stored in holders (the characters in each holder being alike) from which the required character can be discharged into the receiving groove in the board. A number of holders may be mounted on a rotatable support, so that any required holder may be readily brought into alignment with the groove being set up. Preferably, however, each holder is provided with mechanical means controlled from a keyboard, and allowing the required characters to be fed singly by gravity through a corresponding shoot 2 into a common shoot 3 in alignment with the groove 4 in the board 5, and means may be provided to move the board to bring the grooves successively into alignment with the shoot 3. Each holder 1 has a plate pivoted at 7, Fig. 3, and held by a spring in the position shown so that a finger 9 is clear of, and an endpiece 8 supports, the characters. On depressing the corresponding key of a keyboard, a wire 10 pulls the plate to the left. The finger 9 enters the space between the lowest letter and the one above it, after which the piece 8 moves clear of the end of the holder, allowing the lowest letter to fall into the shoot. On release of the key. the parts return to the position shown. Specification 104,812 is referred to. The characters may be discharged from the holders by hand, or by pneumatic or mechanical means instead of by gravity. According to the Provisional Specification a rack or plunger may be used
Patent GB-1420809-A (GB)
Title: Process for the hydrogenation of hydrocarbons
IPC: C10G45/40
Filed: 1973-07-20
Abstract: 1420809 Hydrogenating hydrocarbon oils DOW CHEMICAL CO 20 July 1973 34741/73 Heading C5E A mixture of gasoline blend stock and fuel oil is produced from a hydrocarbon feed boiling within the range 220-650‹ F. and containing up to 10 wt. per cent of tars and gums by contacting a mixture of the feed with hydrogen, in a mole ratio of hydrogen to olefinic content of the feed (olefinic content is defined as the aliphatic and cycloaliphatic unsaturation), with a catalyst of 0À2 to 5 wt. per cent Pt or Pd on a porous carrier (e.g. alumina spheres) at 100- 1000 p.s.i.g., 100-200‹ C. and a L.H.S.V. of 0À5 to 10. The effluent is cooled and the liquid material distilled to produce a 204‹ C. end point gasoline as overhead and a stabilized, deodorized fuel oil as bottoms. The feed to the hydrogenation can be a by-product of the pyrolysis of liquified petroleum gas, naphtha or gas oil.
Patent GB-1496602-A (GB)
Title: Flat knitting machines
IPC: D04B15/36
Filed: 1975-08-21
Abstract: 1496602 Knitting machines UNIVERSAL MASCHINENFABRIK DR RUDOLF SCHIEBER 'KG 21 Aug 1975 [10 Sept 1974] 34847/75 Heading D1C Loops to be transferred from needles 3 in one bed of a flat machine to needles 5 in the other bed are first lifted higher than the transfer position by a nose 25 on a transfer cam so as to expand their loops by means of expanders 8 fixed to the needles and then are brought to the transfer position by a lower nose 26, the transfer cam 23 having three noses so as to operate in either direction of travel - one nose 25 and two noses 26, as shown, or vice versa. The transfer position of the needles 3 as shown in Fig. 5 is such that the loops 9 open the latches of the receiving needles as these are lifted by a cam 21. The cam 21 trails on the nose 26 and the active ranges of the cam and nose overlap. As shown, a cam 15 is inserted and all needles 3 are lifted to transfer their loops. Alternatively the cam 15 may be put out of action and a Jacquard device  used to lift only selected needles on to the cam 23. In the cam carriage a transfer cam set 12 or 13 is mounted on each side of the stitch cam set for each bed.
Patent GB-349725-A (GB)
Abstract: 349,725. Plugging furnace tapping- holes. BAILEY Co., W. M., 336, 4th Avenue, Pittsburg, U.S.A. April 14, 1930, No. 11839. Convention date, April 20, 1929. [Class 51 (ii).] In a clay gun operating mechanism, a gun supporting carriage is rotatably mounted on a pedestal structure independent of the furnace structure, but having a definite relation to the furnace notch, which is the same for each furnace, thus permitting the gun to be transferred from one furnace to another without alteration in the design of the gun. A gun carriage 12 having a gun compartment 13 and a motor compartment 14 is secured to a rotatable sleeve 16 on the pedestal 17 about which the carriage is turned by means of a motor 19 and a worm and gear 20. A clay gun 21 is supported in the compartment 13 by two sets of parallel levers 22, the rear set being pivoted to the sides of the compartment and the forward set suspended from a shaft 28 mounted in a casting 29 which also forms a support for a shaft 25. This shaft is geared to a motor 23 and moves the gun towards or away from the iron notch 11 of the hearth jacket 10 of the furnace by means of a crank 26 and a link 27. The motor 23 is mounted on a floor 35 spaced above the bottom plate 36 of the compartment 14 to provide a ventilating air space 37. In operation, the carriage is swung by motor 19 into operative position where it is locked by a latch 30 on the front of the carriage which engages with a catch 33 on the hearth jacket. The motor 23 is then operated to swing the gun downwardly into the notch 11. After plugging, the gun is retracted by a reverse operation of the motor, the latch 30 released by a remote control means such as a string member 34 and the carriage rotated by the motor 19 into inoperative position.
Patent GB-500612-A (GB)
Title: Method for the production of colour photographs
IPC: G03C7/26
Filed: 1937-05-10
Abstract: 500,612. Colour photography. KODAK, Ltd. May 10, 1937, No. 34981/38. Convention date, May 9, 1936. Divided out of 500,826. [Class 98 (ii)] A colour photograph is produced from material having colour component silver salt images in three photographic emulsions on a single support and containing one or more water-insoluble filter dyes resistant to photographic developing baths by colouring the component images with dyestuffs capable of giving leuco-compounds which are readily re-oxidizable and by destroying the filter dye by reduction. The material may comprise three differentially colour sensitized silver halide emulsion layers coated on a single support or two layers, one containing a mixture of two silver halide emulsions respectively sensitized for red and green, and the other comprising a not specially colour sensitized silver halide emulsion layer. The three layer material may have a top blue-violet sensitive layer, a middle yellow and green sensitive layer and a bottom red or infra-red sensitive layer or a top blueviolet sensitive layer, a middle red and orange or infra-red sensitive layer and a bottom yellow and green sensitive layer, or a top red sensitive layer, a middle yellow-green sensitive layer, and a bottom blue sensitive layer. 4 : 4<1>- dichloro - 2 : 2<1> : 8 - triethylthiacarbocyanine chloride sensitizes to the red and orange red but not to the green and yellow. A yellow filter may be arranged between the bluesensitive and the middle layer, or may be in the blue sensitive layer itself. Green or red orange filters may be incorporated in the middle laver or between the middle and bottom layers. Strongly swelling gelatine is used for filter layers. A colourless or yellow gelatine layer may be arranged between the middle and bottom layers. The three-layer material may also be coloured yellow throughout. The red or yellow-green sensitive emulsion may be on the opposite side of the support to the other two layers. In the two layer material, the homogeneous blue sensitive emulsion layer may be coloured yellow, or a yellow filter layer may be arranged between the two emulsion layers, which may be on opposite sides of the support. The component images may be formed of vat dyes, indophenols, azomethines, and like compounds and may be formed by development with leuco-vat dyes. The silver is removed with Farmer's reducer. The filter dyes mav be insoluble azo dyes synthesized in gelatine and may be insoluble azo dyes derived from alpha-naphthol. The original latent images may be processed or the material may be processed by reversal, or may be developed to silver, fixed and bleached. Specifications 376,746, 383,799, 498,875, and 500,793 are referred to.
Patent GB-316076-A (GB)
Title: Machine for sewing cover-soles in house shoes or the like
IPC: D05B15/00
Filed: 1928-11-29
Abstract: 316,076. Stephens, A. J., (Maschinenwerke zu Frankfurt a. M. vorm. Kolb, Rieber, & Co. Ges.). Nov. 29, 1928. Boot-sole sewing- machines; work supports.-In a machine for sewing cover soles into thin leather house shoes, the presser foot has a notch for the end of the curved needle and retires from the work as soon as the lining is penetrated. The shoe, turned inside out, is placed on a work support 5 carried by a column 9 with a steep thread working in a nut 10 and lowered bv the treadle 8. The nut 10 is carried in a frame 6 secured to the feed slide 19 operated from cam 14 synchronously with an upper work engaging and feeding arm 16. The support 5 is lifted and lowered by an arm 15 pivoted at 13 and engaging the cam 14 at one and a lug 11<1> on the nut 10 at the other, during the feeding. The presser foot 28 is carried by an arm 28<1> operated from the cam 14 by the levers 30, 31. It has a slot 32 for end of the needle 26 and holds the work firmly on both sides thereof during penetration. The needle penetrates the lining 3 only, to avoid tearing the thin leather upper 2. As soon as the needle has penetrated the work, the presser foot is retracted.
Patent GB-976263-A (GB)
Title: Improvements in or relating to castor wheel assembly suspensions
Inventor: MAXWELL-HOLROYD LESLEY
IPC: B60B33/04
Filed: 1962-09-15
Abstract: 976,263. Castors. B.R.D. CO. Ltd. Sept. 6, 1963 [Sept. 15, 1962], No. 35255/62. Heading A4U. [Also in Division B7] A castor wheel assembly includes a rubber torsion unit 10 secured by a strap 12 to a swivel support plate 11, a wheel strut 13 being attached to the torsion unit and the plate 11 has a vertical member 14 which is rotatable about a vertical axis within a suport tube 15 on bearing races 16, a rubber pressure ring 19 is mounted on plate 11, a free friction plate 20 is mounted on ring 19 and has holes through which pass pegs secured to plate 11, a fixed annular friction plate 23 is welded to tube 15 and a friction disc 24 is disposed between plates 20, 23 the plates and disc being forced together by ring 19 to restrair swivel movements.
Patent GB-741794-A (GB)
Title: Improvements in turbine nozzles
IPC: F01D9/04
Filed: 1953-12-18
Abstract: 741,794. Turbine nozzles. GENERAL MOTORS CORPORATION. Dec. 18, 1953 [Dec. 22, 1952], No. 35286/53. Class 110(3) A turbine nozzle comprises inner and outer shroud rings 27, 26 with nozzle guide vanes 28 extending therebetween, the vanes being secured to the inner shroud ring 27 and passing freely through the outer shroud ring 26, the inner shroud ring being supported with freedom for radial expansion by a key and slot mounting. In the gas turbine engine shown, the nozzle guide vanes 28 are secured to the inner shroud ring by welding. A ring 31 is secured on the inner surface of the inner shroud ring and is formed with notches 32 which engage with washers 33 secured behind a ring 36 to the stationary structure 11 by means of bolts 34. The washers are somewhat thicker than the ring 31 so that the inner shroud ring is located circumferentially and axially but with radial freedom. The outer shroud ring is disposed within a casing 13 and has secured thereto two ring members 44, 47 which abut with the casing 13 to limit the radial expansion of the outer shroud ring. The ring 44 also limits axial movement of the shroud ring by engaging with the flange 46 on the casing. The ring 47 is recessed so as to allow for expansion of the guide vanes. The structure 11 is connected to the casing 13 by radial webs 12.
Patent GB-883939-A (GB)
Title: Improvements in and relating to polymers and to their preparation
IPC: C08G61/02
Filed: 1957-11-14
Abstract: Polymers of substituted p-xylylene of formula, <FORM:0883939/IV (a)/1> in which R represents one or more of the following, alkyl, substituted alkyl, carbomethoxy, acetyl, phenyl or halogen groups and n is a number between 10 and 10,000, are prepared by substituting di-p-xylylene with at least one R group, converting to the divalent radical form by vapour phase pyrolysis at from 500 DEG  to 600 DEG C., and cooling to below 200 DEG C. to polymerize the resulting pyrolyzed material.  Examples describe the polymerization of di-bromo-di-p-xylylene, dichloro-di-p-xylylene at differing coding temperatures to prepare polymers of differing molecular weight, and of tri-chloro, tetra-chloro, penta-chloro, hexachloro-di-p-xylylene, 2-acetyl-, 2-ethyl, and 2-carbomethoxy-di-p-xylylene to yield polymers which are soluble in boiling a -chloro, a -methyl- and a -bromo naphthalene and which may be formed into fibres, sheets, or films.  Copolymers may also be formed by polymerizing mixtures of free divalent radicals and they have similar properties to the polymers making them suitable for electric insulation or surface coating. Specifications 883,940 and 883,941 are referred to.ALSO:Halogen, alkyl, or acetyl substituted di-p-xylylene are prepared from di-p-xylylene which may be prepared by pyrolysing p-xylene at 900 DEG C. in the presence of steam.  Examples describe the preparation of di-chloro- and tri-chloro-, and di-bromodi-p-xylylene, by halogenation in the presence of an iron powder catalyst with carbon tetrachloride as solvent; and of 2-ethyl-di-p-xylylene by the reduction of 2-acetyl-di-p-xylylene with a mixture of dilute glacial acetic acid and concentrated hydrochloric acid with amalgamated zinc.  The substituted products may be polymerised by conversion to the divalent radical form by vapour phase pyrolysis at 500 DEG C.-600 DEG C. and cooling to below 200 DEG C. (see Group IV(a)).
Patent GB-987437-A (GB)
Title: Improvements in constant current generators
Inventor: BARRETT JOHN ALBERT
IPC: H04B3/44
Filed: 1961-10-05
Abstract: 987,437. Automatic current regulation. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. Oct. 1, 1962 [Oct. 5, 1961], No. 35919/61. Heading G3X. [Also in Division H2] A converter providing direct current of substantially constant value from a direct current source, has a pair of transistors connected in push pull and powered from the direct current source and controlled by a suitable alternating waveform derived from the source, the push pull circuit including a high impedance source and the output from the transistors being passed through a high impedance transformer and subsequently rectified to give the required constant direct current. In the figure the parallel inverter having transistors VT1, VT2 driven by a square wave oscillator has its output rectified by the bridge rectifier. The emitters of the transistors VT1, VT2 are supplied with constant current from transistor VT3, whose base voltage applied at A is constant. The circuit may be used for supplying repeaters in telecommunication lines.
Patent GB-459410-A (GB)
Title: Process and apparatus for impregnating and/or coating textile threads
IPC: D01D10/04
Filed: 1935-12-30
Abstract: 459,410. Coating threads. ETABLISSEMENTS FLINOIS, COLMANT, & CUVELIER, COLMANT & CUVELIER SUCCESSEURS SOC. ANON., Boulevard des Combattants, Tournai, Belgium. Dec. 30, 1935, No. 35944. Convention date, Jan. 28. [Class 140] A thread 1, Fig. 1, is impregnated or coated with a liquid such as rubber solution or latex by drawing through a long and thin layer of the liquid which is confined in a narrow tube 5, so that the coating liquid is not carried along by the thread but acts frictionally thereon. The thread passes through a constricted neck 2 into a bulb 3 supplied with latex at 4, and draws the latex into the narrow tube 5 having a constricted outlet 6, which causes the latex to form a relatively stationary sheath surrounding the thread. The thread may be pretreated in a similar manner with a wetting liquid, e.g. water, or a rubber solvent. The thread may be coated in an apparatus comprising three bulbs 7, 8 and 9, Fig. 3, connected by narrow tubes 10 and 11 in which latex supplied at 12 under pressure circulates in opposite directions. This apparatus may be followed, as shown, by a device similar to that shown in Fig. 1, the thread being treated by a wetting liquid, e.g. water supplied to bulb 8, and then with latex supplied to bulb 3. Alternatively an impregnating liquid may be supplied to bulb 8, and a more concentrated or otherwise different impregnating liquid to bulb 3. The apparatus may be made of glass.
Patent GB-1490376-A (GB)
Title: Direction finding system
IPC: G01S3/46
Filed: 1975-09-02
Abstract: 1490376 Direction finding STANDARD TELEPHONES & CABLES Ltd 2 Sept 1975 36085/75 Heading H4D A radio direction finding system utilizing, for example, a VHF distress transmission signal from a ship, comprises two fixed aerials X and Y, spaced, for example, one quarter wavelength apart. The aerials X and Y are connected to opposite corners a and d of hybrid network H1, via identical electrical length paths and two phase shifters P1 and P2, whereby a signal from a source, e.g., off-axis from the line bisecting the aerial baseline produces a mutual phase differential in the signals received by each respective aerial, which signals are each split along the two respective arms of hybrid H1. Arm ac, however, includes a 180 degrees phase shifter so that a first signal produced at b comprises the in-phase sum of the received signals and a second signal produced at c comprises the anti-phase sum of the received signals and is in phase quadrature with the first signal. In hybrid H2, the first signal is split at g and the second signal is split at h but is phase shifted 180 degrees along limb hf. The resultant sum signals at e and f will have equal amplitude but a differing phase #. However, if the signals from X and Y have identical phase, i.e. if the received signal source is on the line equidistant from each of the two aerials, the signal at b is a maximum and at c, zero; so that at e and f, the resultant signals are in-phase, that is #=0. Switch S is operated at a frequency within the audiopass band in receiver R and alternately connects the signals from e and f to the input of receiver R. The phase difference #, if present, results in a phasemodulated signal A which can be detected as an audible tone at the output of receiver R. When #=0, no audible tone is heard, so that by adjusting the electrical path length of the aerial feeds using phase-shifters P1 and P2 in a calibrated fashion so that the amplitude of signal A falls to zero the angular displacement from the aerial bisecting axis of the signal source may be measured. A correlator C driven by switch oscillator O may be employed to eliminate any audiofrequency modulation on the received carrier wave signal and the output therefrom may be fed to a logic circuit L where the amplitude of signal A is monitored and provides a control signal for automatic driving of phase shifters P1 and P2, and a visual display may be provided therewith. Phase shifters P1 and P2 may comprise switchable lengths of transmission line whereby the path lengths may be varied in small increments. Two aerials are required for a shore-based system where there is no aerial baseline ambiguity, but for a shipborne installation three aerials mounted in a triangle for use in pair-by-pair sequence are required.
Patent GB-1121015-A (GB)
Title: Cardiac waveform oscilloscope
IPC: A61B5/044
Filed: 1966-08-12
Abstract: 1,121,015. Cardiac waveform oscilloscope; transistor amplifying and sawtooth circuits. WESTINGHOUSE ELECTRIC CORP. 12 Aug., 1966 [30 Aug., 1965], No. 36201/66. Headings H3T and H4T. In a cathode-ray tube oscilloscope for displaying the cardiac wave of a living subject, an electrical signal corresponding to such wave and produced by an electrode structure applied to the subject is fed via terminals 2, 4 (Fig. 1) to the input of a differential amplifier 10, the output terminals V1, V2 of which are connected to the vertical deflection plates of the tube to display the cardiac wave against a time-base produced by a sawtooth generator 110 having terminals H1, H2 connected to the horizontal deflection plates. By the use of a differential amplifier the cardiac waves, which represent out-of-phase signals, are amplified to the exclusion of random noise signals which, as inphase signals, are cancelled. Additionally, since the cardiac waves have a relatively low frequency, spurious high freqiencies are eliminated by capacitors 70 and 72. To compensate for variations in the operating characteristics of the transistors a feed-back circuit 102 controls the bias potential of the base electrode of transistor 14 in accordance with variations in the collector electrode potential of transistor 52 as available at point 100 and for vertical shift of the display the potential of point 100 is adjusted by potentiometers 109. Vertical gain is adjusted by means of potentiometer 18. The sawtooth generator 110 comprises a unijunction transistor 112 (which may be replaced by a silicon-controlled rectifier) for discharging a capacitor 120 which is charged linearly by means of a constant current source including transistor 118 and Zener diode CR9, the resulting sawtooth wave being coupled via an emitter follower transistor 126 (operating as a high-to-low impedance converter) to the input of a paraphase amplifier 134, 136 supplying the horizontal deflection plates from terminals H1, H2. The horizontal gain is adjusted by potentiometer 128 and the horizontal position by potentiometer 154 acting as a shift control. The complete equipment which is intended for portable use employs a display tube with a oneinch diameter screen and is energized from a power supply 32 supplied by a (six volt) battery 6 which provides a regulated A.C. voltage for the tube heater in addition to operating D.C. voltages.
Patent GB-803619-A (GB)
Title: Improvements relating to container closures
IPC: B65D41/04
Filed: 1955-12-17
Abstract: 803,619. Container closures. UNIVERSAL METAL PRODUCTS Ltd., and BIDDULPH, M. Dec. 17, 1956, [Dec. 17, 1955], No. 36251/55. Class 125(3). A screw closure cap has a cylindrical portion 1 and a knurled flange 2 and a surface tapered in steps 7 formed by coaxial cylindrical surfaces 8 and annuli 9, the edges of two or more steps contacting the end of the neck 4 to form a seal.
Patent GB-1324510-A (GB)
Title: Process for the production of ketose and for the subsequent inclusion thereof in foodstuffs
IPC: A23L27/30
Filed: 1970-07-27
Abstract: 1324510 Sweetener HAYASHIBARA CO 27 July 1970 [27 July 1969 (2) 36318/70 Heading A2B [Also in Division C2] Food and drinks comprise as a sweetener a mixed sugar consisting predominantly of maltulose obtained by the process of invention.