baber/WOPTO huggingface dataset:
Patent GB-822394-A (GB)
Title: Improvements in apparatus for feeding stretchable and shrinkable web material
IPC: F26B13/14
Filed: 1957-07-05
Abstract: 822,394. Drying textiles in long lengths. MELLBIN, B. F. H. July 5, 1957, No. 21277/57. Class 34(1) [Also in Group XVI] In a device for driving a group of rollers arranged in two rows with the rollers of one row positioned opposite the gaps in the second row for drying a web of material, particularly a stretchable and shrinkable textile web looped around the rollers, the shaft of each roller carries a first pulley freely rotatable thereon and a second pulley  rigidly attached to the shaft, a belt or chain driven by a primary driving shaft being led around the first-mentioned pulleys, the first-mentioned pulley of each roller being coupled to the secondmentioned pulley by two parallel belts passing one around each of the first and second pulleys and a common freely rotatable pulley, at least one of the parallel belts being more elastic than the material being fed, so that the pulley rigidly attached to the roller shaft is driven with a reduced speed relatively to the speed of the rotatable primarily driven pulley. As shown, a web 13 is fed by a roller 49 driven at a lower speed than drying rollers 11 around which the web passes, thereby tensioning the web Each drying roller is supplied internally with steam through a stuffing box, not shown, fitted on a shaft 15 supporting the roller. The roller 49 is driven by a pulley 47, belt 45, and a pullely 43 on a driving shaft 37. A pulley 39 mounted on the driving shaft 37 drives a belt 36 passing around pulleys 23 mounted on shafts carrying the rollers 11. The pulleys 23 drive pulleys 31 freely mounted on shafts 27, through belts 35 while the pulleys 31 in turn drive pulleys 25 fixed to the drying roller shafts through belts 33. Due to the elasticity of the belts 33, 35 the shaft 15 is driven at a lower rotational speed than the pulley 23, the magnitude of this difference in speed being dependent upon the torque opposing the rotation of the roller. This torque is composed of friction forces and the force exerted upon the web by the roller. Thus, the rollers 11 are driven at speeds corresponding to the changes in length of the web due to shrinkage or stretch. Reference has been directed by the Comptroller to Specification 735,341 [Group XVI]
Patent GB-169328-A (GB)
Title: Improvements in or relating to apparatus for making concrete and like building blocks
IPC: B28B1/04
Filed: 1920-07-14
Abstract: 169,328. Smith, M. M. July 14, 1920. Bricks.-Blocks for buildings are moulded with end recesses and a waterproof core K by means of a mould with a removable pallet L and a tamping pallet L<1>.
Patent GB-837124-A (GB)
Title: New copper-containing triazine monoazo dyestuffs
Inventor: STEPHEN WILLIAM ELLIOT
IPC: C09B62/095
Filed: 1957-07-05
Abstract: The invention comprises copper-containing dyes which in their metal-free state are of formula <FORM:0837124/IV(c)/1> where A is free from SO3H but may be otherwise substituted, X is a metallizable substitutent, B is a naphthalene nucleus containing one SO3H group and OH in o-position to the azo group, R is H or alkyl and Y is Hlg. They are made by conventional processes by coppering the dye obtained by treating the compound <FORM:0837124/IV(c)/2> with at least an equimolar quantity of a cyanuric halide. 1,1-Complexes are obtained. Preferably the metal-free dye is obtained in an aqueous medium at pH 6-7 and the product isolated from the medium adjusted to pH 6.5. Indicated as substituents for A are halogen, alkyl, alkoxy, alkylsulphonyl, alkylcarbonyl, acylamino nitro, carboxyl and especially sulphamyl groups the latter of which may be substituted. Indicated for X are OH, MeO, COOH or OCH2COOH.  R preferably has 4 or less C atoms. Specified coupling components include 2-amino-8-naphthol - 7 -, 2 - ethylamino - 5 - naphthol - 7 - and 1 - amino - 8 - naphthol - 4 - sulphonic acids, Specified diazo components include 2-aminophenol, 4 - chloro - and - nitro - 2 - aminophenol, anthranilic acid, 4 - ethanesulphonyland - sulphamyl - 2 - aminophenol, 3 - amino4 - hydroxyacetophenone, 5 - nitro - 2 - aminophenoxyacetic acid, o - anisidine, 4 - diethylsulphamyl - 2 - aminoanisole and 2 - aminoiso-phthalic acid.  The dyes as alkali metal salts, are especially useful for dyeing and printing cellulose textiles in conjunction with an acidbinding agent (see Specification 797,946), orange, red and blue shades being obtained.
Patent GB-151807-A (GB)
Title: Improvements in and relating to valves and faucets
IPC: F16K5/12
Filed: 1919-08-30
Abstract: 151,807. Moran, F. B. Aug. 30, 1919. Mixing-valve.-A valve or faucet for delivering any one, or a mixture, of a number of liquids comprises a hollow tapered chamber 1, Fig. 1, having three inlets 15, 16, 17 and one outlet 22 ; the latter may have a draw-off tap 21 and a thermometer 23 fitted thereto. The tapered controlling-plug 6, Fig. 6, has V-shaped openings 24, 26 and a double V-shaped opening 25, for controlling the inlets 15, 17, and 16, respectively, and an elongated opening 29 for the outlet 22. The plug can be turned so that the inlets may be all closed, or any one opened and the other two closed, or the middle one opened partially with either of the other two. The plug is secured in the chamber by a cap 4 with packing interposed, and the stem 12 is screwed and engages a nut 13 whereby the plug can be adjusted longitudinally. In a modification the casing 1 is modified so as to discharge axially through the open end of the plug.
Patent GB-1437458-A (GB)
Title: Continuous determination of the toxicity of liquids
IPC: C02F3/34
Filed: 1973-05-04
Abstract: 1437458 Measuring toxicity using microorganisms BROWN BOVERI & CIE AG 4 May 1973 21398/73 Heading G1B The toxicity of liquids such as water and sewage is continuously determined by measuring the effect of the liquid on the growth of microorganisms, the method comprising maintaining in a stock vessel 1 a constant concentration of a specific micro-organism or mixture of micro-organisms by continuously cultivating the micro-organism(s) under constant conditions in the stock vessel with a constant inflow of water comprising nutrients  and an outflow from the stock vessel equal to the  total liquid inflow into the stock vessel, passing the outflowing culture solution into a measuring vessel 2 in which the culture solution is mixed for a residence time of less than the period of pro-  creation of the micro-organism(s) with the aqueous liquid being tested and with fresh nutrient solution being saturated with atmospheric oxygen and being passed into the measuring vessel at constant rate, and measuring a parameter dependent on the metabolic activity of the micro-organisms. The apparatus shown comprises (a) vessel 1 open to atmosphere, to which vessel are fed concentrated nutrient solution and diluent water, (b) closed vessel 2 provided with overflow pipe 4 and means 5, for example an oxygen electrode for measuring the concentration of oxygen in the test system and (c) vessel 6, which is open to the atmosphere and in which the liquid to be tested is mixed with fresh nutrient solution and the mixture is saturated with air.
Patent GB-460179-A (GB)
Title: Improvements in or relating to modulated carrier wave receivers
IPC: H04B1/30
Filed: 1935-07-22
Abstract: 460,179. Valve circuits for wireless reception. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and WRIGHT, G. M. July 22, 1935, No. 21399/34. [Class 40 (v)] In a homodyne receiver, interference due to the " carry - through " of unwanted highfrequency modulated currents is prevented by providing, in addition to the usual low-pass filter 5 (passing a band up to 9 k.c. wide), a high-frequency filter 8 having a cut-off well above the audible limit, but well below the lowest carrier-frequency the set is intended to receive ; a suitable limit is 100 k.c. Finally, to cut out very strong interference in an adjacent broadcast channel, an acceptor circuit 7, not too-sharply tuned to the standard frequency-gap of 9 k.c., is shunted across either the input or output terminals of the low-pass filter 5. The incoming signals are fed directly from the aerial 2 to a rectifier 4, the homodyne oscillations being applied from a local source 3.
Patent GB-721247-A (GB)
Title: Improvements in or relating to plate columns for treating liquids with gases or vapours
Inventor: BAKOWSKI STANISLAW
IPC: B01D3/20
Filed: 1952-08-27
Abstract: 721,247. Bubble cap columns. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Aug, 4, 1953, [Aug. 27, 1952.] No. 21523/52. Class 55 (2). In an absorption, &c., column comprising superposed plates 3 with slotted bubble caps 1, a central rod 4 rigidly attached to the top of the cap depends through one or more guides such as 11, 15, as shown attached to the vapour riser 14 and under-side of the plate so as to be freely movable within the limit imposed by a nut 9 at its lower end. The total weight of cap, rod, &c., is arranged to balance the pressure drop through the plate multiplied by the horizontal crosssectional area of the cap.. In an example, for the distillation of a benzene-toluene mixture a cap 4 inches in diameter and 3.5 inches high allows for 2-3 inches fluctuations in liquid depth, the liquid seal required being about 1.4 inch and the total weight of cap, rod &c., 0.5 lbs. Modifications comprise an ebonite cap with slots inclined at an angle to the cap radius, and an aluminium cap which is slotted by bending strips outwards to form vanes.
Patent GB-1140264-A (GB)
Title: Oxidation catalyst containing vanadium and titanium
Inventor: FRIEDRICHSEN WILHELM
IPC: C07C51/265
Filed: 1966-05-17
Abstract: 1,140,264. Oxidation of hydrocarbons. BADISCHE ANILIN- & SODA-FABBIK A.G. 17 May, 1966 [18 May, 1965], No. 21781/66. Heading C2C. [Also in Division B1] Aromatic hydrocarbons may be oxidized to carboxylic acids, for example o-xylene may be oxidized to phthalic anhydride+maleic anhydride, using a catalyst consisting of an inert porous carrier coated with a 0À02 to 2 mm. thick layer of a composition containing 1% to 15% by weight of vanadium pentoxide and 85% to 99% by weight of titanium dioxide, the catalyst containing from 0À05% to 3% by weight of vanadium pentoxide. In the examples, vapour phase o-xylene and air are passed over the catalyst in a tube heated by a salt-bath, the reaction temperature being: (1), (4), and (5) 400‹ C.; (2) and (7) 390‹ C.; (3) 380‹ C.; (6) 410‹ C. Also mentioned are oxidation of propylene to acetic acid; butene-(1 butene-(2) or butadiene-(1,3) to maleic acid; benzene to maleic acid; naphthalene to phthalic acid; toluene to benzoic acid; methyl naphthalenes to naphthoic acids; durene to pyromellitic acid.
Patent GB-262175-A (GB)
Title: Improvements in or relating to shoes with cushion heels and to such heels
IPC: A43B21/06
Filed: 1925-09-01
Abstract: 262,175. British United Shoe Machinery Co., Ltd., and Barclay, W. R. Sept. 1,1925. Heels.-A cushion heel, Fig. 2, comprising a core 9 and a casing 1 of resilient material is provided round the side and back with an extension 11 higher than the core to form a cavity 13 to receive the end of the outsole and conceal it. The top of the rim 11 contacts with and makes a tight joint with the upper. The core 9 of plywood as described in Specification 206,985 may have the top exposed or covered with rubber 19. The upper surface of the heel may be smoothly curved or may have an abrupt margin 21. The hollow 13 may also be partially filled with rubber as at 23, Fig. 1, to permit the use of a shortened sole. The rim 11 may cease at 27, short of the heel breast, to prevent sagging of the sole at the margins. A snug fit of the rim 11 to the upper is assured by slight deformation of the rim 11 during the heel attaching operation. The outside edge of the rim 11 may have the usual seat beading as would have been applied to the sole. Heels as above intended for repair.may be loaded with fastenings as described in Specifications 246,059; and 245,406, [Class 17 (iii), Boots and shoes, Protectors &c. for.].
Patent GB-929875-A (GB)
Title: Improvements relating to servo-operated apparatus
Inventor: CONWAY HUGH GRAHAM
IPC: F15B9/08
Filed: 1959-06-25
Abstract: 929,875. Fluid-pressure servomotor control systems. SHORT BROS. & HARLAND Ltd. June 17, 1960 [June 25, 1959], No. 21869/59. Class 135. In a servo-mechanism, e.g. for operating the control surface of an aerodyne in which a signal is normally transmitted through a plurality of parallel channels 1-4, Fig. 1, each of which is capable of independent operation, each channel has a separate servomotor A 1 -A 4  and the outputs from the servomotors are coupled by differential mechanisms B 1 , B 2 , C so that a loss in the common output resulting from runaway of one or all but one of the channels is compensated by excess travel of the remaining output members, and stops restricting the common output to a predetermined value each servomotor having a multiplicated position feed-back p 5 -p 8  from the common output c and an independent positional feed-back p 1 -p 4 . In Fig. 2, electric signals are fed to the electric torque motors 102, 112, 122, 132 which actuate piston valves 101, 111, 121, 131 controlling pistons 10, 11, 12, 13, the valves having rate feed-back pick-offs at 105, 115, 125, 135 and the pistons having positional feed-lock pick-offs at 104, 114, 124, 134. Two pistons are connected to each of two levers 14, 16 pivoted on two gear sectors 15, 17 engaging a bevel gear 19 loosely mounted on lever 20 connected to the control surface, movement of the lever being limited by stops 2001, 2002 to an amount less than is achievable by the four pistons together. Should one servomotor fail, the others perform excess movement to shift lever 20 the desired amount. In a further embodiment, lever 20 operates one or two piston valves through a floating lever controlling one or two moving cylinders connected to the control surface and having a moving seat feed-back.
Patent GB-1416485-A (GB)
Title: Encoder guard circuit
IPC: H04N1/00
Filed: 1973-05-08
Abstract: 1416485 Facsimile transmission XEROX CORP 8 May 1973 [16 May 1972] 21871/73 Heading H4F In a system for encoding video information for facsimile transmission by alternately shifting the analogue signal between a pair of ranges above and below a midpoint level, a guard circuit limits the time that the signal is permitted to dwell in one of the ranges. The guard circuit comprises a detector providing a signal whenever the encoded signal is in said range and a timer which switches the encoded signal to the other range when it has been in the said range for a predetermined time. The system is intended for transmission along telephone lines, the encoded signal controlling a voltage controlled oscillator and the predetermined time being considerably less than the duration of inband signalling equipment control signals. As described, the video signal is fed via peaking filter 13 to low level clamp 15 which limits the signal to a minimum level determined by threshold circuit 16. Amplifier 19 provides the video voltage either direct or inverted (as controlled by mode selector switch 24) to voltage controlled oscillator 14 which is biased to a mid frequency (corresponding to the threshold voltage of detector 16) by amplifier 25 and associated circuitry. The mode switch is operated each time the video voltage reaches the threshold by trigger 26 and triggerable flipflop 25. The guard circuit 11 comprises NOR gate 31 and timer 32. The timer is started by a Q output of flip-flop 25 corresponding to the direct video signal and higher frequency range, and unless stopped by a trigger pulse, switches the flip-flop via input SD to charge the video signal to the inverted mode. The timer preferably comprises a RC circuit with different time constants for the predetermined and recovery period so that the predetermined period is shortened when the bistable switches from the direct to the inverted state and back within a period less than the recovery time.
Patent GB-1343045-A (GB)
Title: Process for the cooling and washing of a gas
IPC: B01D51/10
Filed: 1971-04-19
Abstract: 1343045 Cracking of hydrocarbons FARBWERKE HOECHST AG 19 April 1971 [18 Feb 1970] 21895/71 Heading C5E A gas, e.g. from a catalytic cracking process is cooled and washed by passing the gas in turn through a first stage and a second stage, wherein a high boiling wash oil that remains liquid at the temperature prevailing in the 1st stage is introduced into this stage, removed therefrom and at least partially returned thereto, and a low boiling oil which vaporizes at the temperature prevailing in the first stage is also introduced into that stage wherein it vaporizes and passes with the gas into the second stage and condensed there by indirect cooling, e.g. by two or more heat exchanger steps, the condensate being at least partially returned to the first stage. Preferably high and low boiling oils are added as one mixed boiling point oil. The cracked gases exemplified contain acetylene and olefins.
Patent GB-764714-A (GB)
Title: Improvements in or relating to apparatus for plying together textile yarns
Inventor: GATLING ANTHONY DAVID
IPC: D02G3/40
Filed: 1954-07-28
Abstract: 764,714. Twisting and doubling yarns. DUNLOP RUBBER CO., Ltd. July 5, 1955 [July 28, 1954], No. 22006/54. Class 120 (2). Apparatus for plying two yarns comprises two supports for let-off packages, feed rolls associated with each package and means for rotating a constant length of yarn from one package about the other package. Two hollow spindles 1, 2 are co-axially mounted in bearings 3 and are driven by chains 4 from a motor 5. Each spindle drives a feed roll unit 7, 9 through worm gearing 6, 8. Yarn from a package 11 is fed into the spindle 1 by rolls 7 and passes through a radial passage 12 to a rotatable guide tube 14 carried by supports 13 on the spindles 1, 2. From the tube 14, the yarn enters spindle 2 through a radial passage 12 and is twisted with a yarn drawn from a bobbin 18 by feed rolls 9. The twisted yarns are wound onto a take-up bobbin 19 driven from a motor 20 through a slipping clutch 21. Supply bobbin 18 is carried on a framework 15 prevented from rotating by magnetic or other means. If desired, the feed rolls may be driven by independent synchronous alternating current motors.
Patent GB-906705-A (GB)
Title: Exercise torpedo
Inventor: ABRAMS BERNARD WEILER
IPC: F42B19/42
Filed: 1959-06-29
Abstract: 906,705. Torpedoes. CLEVITE CORPORATION. June 29, 1959, No. 22200/59. Class 9 (2). A practice torpedo, recoverable after use and having the weight distribution and buoyancy characteristics of a live torpedo, has the usual warhead compartment replaced by a section 12<SP>1</SP> containing recording equipment and lead shot 31 as ballast. A trap door 20, closing an opening 35 through which the shot escapes to allow the torpedo to surface, is secured to a rod 40 projecting from a solenoid 19 which is in circuit with a motor driving the propellers 15. A timing device, connected to a battery, determines the instant at which the motor starts after the torpedo is launched and is also connected to the solenoid, so that when the motor starts the solenoid positively locks the door 20. Before the solenoid is energized a finger 25, controlled by a hydrostat 26, prevents movement of the rod 40. When the torpedo reaches a predetermined depth, the finger 25 is withdrawn and when the motor cuts-out at the end of a practice run the solenoid is de-energized and no longer locks the door 20. The weight of the shot opens the door and the torpedo rises as the shot spills out. The shot is housed in an annular compartment 30 with a filling opening 37 and surrounds control-wires extending from an acoustic device in the nose 11 to the aft section of the torpedo. When the torpedo submerges, water floods the compartment 30 through openings in a lid 36 and door 20. The hydrostat, Fig. 6, comprises a housing 50 for a piston 52 from which the finger 25 projects. When the water-pressure on the piston overcomes the stress of a spring 54, the finger 25 is withdrawn.
Patent GB-184698-A (GB)
Title: Tensioning device for kettle drum heads
IPC: G10D13/04
Filed: 1921-08-22
Abstract: 184,698. Wiedoeft, A. F. Aug. 22, 1921. Drums.-A tensioning-device for a kettle-drum. comprises screws 8 which simultaneously press blocks 11 engaging the tensioning-hoop 5, on the turning of nuts 12 integral with worm-wheels 17 and arranged in housings 13, by means of worms 20 on shafts 19 connected together by flexible couplings 22. Each housing 13 contains ball bearings, and bears against the underside cf a bracket 6 through which the screw 8 freely passes. The worm-shafts are simultaneously rotated by means of a vertical pedalling-wheel 31 and pinion to which they are connected by a telescopic shaft-section 24, 25. Each screw 8 can be rotated by a handle 10 for individual tensioning.
Patent GB-657123-A (GB)
Title: Improvements in or relating to methods of brazing articles consisting of oxidation-resistant alloys
IPC: B23K35/30
Filed: 1948-08-25
Abstract: In a method of brazing, a stainless steel article of the composition 13 Cr, 13 Ni, 10 Co, 3 Nb plus Ta, 2 Mo, 2.5 W, 1 Si, 0.8 Mn, 0.4 C, remainder iron is described as being brazed to a steel article (18 Cr, 18 Ni) by a foil of composition 50 Ni, 40 Cu, 10 Cr (parts by weight) to which 1 Si, 0.1 Nb, 0.25 Mn is added.
Patent GB-1005075-A (GB)
Title: Information transmission system
IPC: H04M11/06
Filed: 1964-05-29
Abstract: 1,005,075. Data transmission by interpolation in speech. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 29, 1964 [June 28, 1963(2)], No. 22387/64. Heading H4R. In a system for the transmission of digital data signals in the idle gaps existing in the transmission of speech, a decision circuit 18 in the transmitter enables a voice gate 12 or a data gate 16 to connect a speaker or a data source to a common channel 20 depending on the presence or absence of speech, the decision circuit 18 ensuring that there are gaps of no-signal between speech and data transmissions and providing a tone signal to precede each data transmission, the receiver having means to detect the no-signal gaps and the tone signals so as to switch the voice and data signals to separate outlets. Supposing that data is being transmitted and speech occurs. Although no means is illustrated whereby data transmission inhibits the decision circuit 18 it is stated that the decision circuit takes no action until the end of the data block currently in transmission. From the end of the data block and in the presence of speech detector 60 sets off a single shot oscillator SS which enables the voice gate 12 after a so-called clip interval of 3 milliseconds. Since a data block is 17 milliseconds long, speech may be clipped by as much as 20 milliseconds but the gap between data and speech on the channel 20 is 3 milliseconds. When a speech gap occurs the detector 60 does not respond until after a hangover period beyond which a tone signal of frequency f1 is sent to proceed data. If speech reappears before the end of the tone signal no data is sent and speech is reinstated after the clip interval dictated by oscillator SS. At the receiver, supposing speech gives way to data, the hangover gap between speech and data is detected in an anti-chirp circuit 34 so that the voice gate 32 is inhibited before the tone signal is received. The tone signal causes a detector 38 to operate a toggle circuit FF to enable the data gate 36. When data gives way to speech the clip interval is detected at 36 to reset FF to enable the voice gate.
Patent GB-1209208-A (GB)
Title: Improvements in or relating to mesh bags
Inventor: LIU JAMES HENRY
IPC: B65D30/06
Filed: 1968-05-10
Abstract: 1,209,208. Bags. J. H. LIU and J. M. POMERANTZ. 1 May, 1969 [10 May, 1968], No. 22389/68. Heading A4G. [Also in Division D1] A mesh bag of widely spaced interwoven filaments has the horizontal synthetic plastics filaments 21 and/or the vertical synthetic filaments 18 twisted together with natural fiber threads 19, 22. The bag may be formed by folding a sheet of mesh and sewing two free edges, and a number of horizontal filaments may be omitted adjacent the bag mouth to accomodate a number of filaments which act as a draw string to close the bag.