baber/WOPTO huggingface dataset:
Patent GB-305212-A (GB)
Title: Improvements in or relating to steam engines
IPC: F01B17/04
Filed: 1929-01-28
Abstract: 305,212. Brouwer, G. Feb. 3, 1928, [Convention date]. Engines with two or more parallel cylinders with axes perpendicular to main shaft; slide valves, piston; beat or lift valves.-A triple expansion engine with four cranks at 90‹ has high and medium pressure counterflow cylinders on cranks at or substantially at 180‹ and two uniflow low-pressure cylinders on cranks at 180‹. The distribution is effected by lift valves or piston valves which may be of the Van de Kerkhove type. In the construction shown in Fig. 1, the cylinders 5, 6 are controlled bv a single valve, the inner heads of which control the inlet and outlet of the cylinder 5 and the inlet of the cylinder 6 and the outer heads of which control the exhaust from. the cylinder 6 to the receivers 11, 12 connected to the low-pressure valve-chest by ports 15, 16. The low-pressure valve controls the admission to the cylinders 7, 8 by its outer and inner heads respectively. Each low-pressure cylinder may have a separate valve controlling also an auxiliary exhaust or small auxiliary exhaust valves may be used. The high-pressure and medium pressure cylinders may work according to the Woolf design. A receiver is placed between the medium and low-pressure cylinders. Each cylinder may have separate piston valves. The cylinders 5, 6 may each have four lift or Van de Kerkhove valves, or six valves may be used for the two cylinders.
Patent GB-563729-A (GB)
Title: Improvements in or relating to mounts for magnetic deflecting means
IPC: H01J29/54
Filed: 1943-02-23
Abstract: 563,729. Electric discharge apparatus. CINEMA-TELEVISION, Ltd., and WYATT, L. G. Feb. 23, 1943, No. 2956. [Class 39 (i)] In a mount for magnetic deflecting means the support for the means may be displaced in a number of different directions by the manipulation of a single controlling member connected to a portion of the mount. The magnet may be used to fasciculate the electron beam in a cathode-ray tube. The magnetic means is held in grooves 5 in a casting 1 that rocks on a shaft having knurled knobs 8 at the end to fix it in a desired position. The shaft is mounted in a frame 6 that can rotate on a pivot on platform 9 and be locked by a member 18 engaging in a slot in the platform 9. The frame 1 can be raised or lowered by cams 14 on a shaft 13 which can be locked by a screw 8. All these motions can be effected by operating a knob on the end of shaft 13 and then tightening the locking means.
Patent GB-721962-A (GB)
Title: Improvements in or relating to propellant supply systems for jet reaction rocket motors
Inventor: KRETSCHMER WILLI
IPC: F02K9/48
Filed: 1952-02-04
Abstract: 721,962. Jet-propulsion plant. MINISTER OF SUPPLY. Feb. 4, 1953 [Feb. 4, 1952], No. 2956/52. Class 110 (3). In a rocket in which two propellants are supplied to the combustion chamber, by pumps driven by one or more turbines, oxidant is supplied initially to a catalyst chamber supplying working fluid to the turbines, so that fuel is supplied under pressure to the combustion chamber through a fuel valve which opens under pressure and oxidant is supplied under pressure to the combustion chamber through a first oxidant valve which is opened by the pressure in the fuel line downstream of the fuel valve so that fuel reaches the combustion chamber before the oxidant and the pressure of the oxidant downstream of its valve is used to open a second oxidant valve so that oxidant is supplied to the catalyst chamber to drive and increase the speed of the turbine or turbines. In the arrangement shown, hydrogen peroxide passes through a non-return valve 13, an idling throttle valve 14, a pipe line 12 and a main throttle valve 15 to a catalyst chamber 16 where it is dissociated into steam and oxygen and then fed to a turbine 18 driving the fuel pump 19 and oxidant pump 20. When the fuel pump reaches a predetermined speed, the solenoid valve 26 is opened and the pressure in the fuel pipe 26 opens the fuel valve 24 and fuel is fed to the combustion chamber 22. Fuel under pressure downstream of the valve 24 acting through the pipe 29 opens the oxidant valve 28 and oxidant is pumped into the chamber 22 at a higher pressure than that of the first-mentioned oxidant. Oxidant from the pipe line 27 downstream of the valve 28 passes through a pipe line 31, a second oxidant valve 33 and pipe line 12 to the generator 16 and also closes the non-return 13 so that the rocket continues to run independently of the first-mentioned oxidant. In a modification, the oxidant supplied to the generator 16 is hydrogen peroxide and the oxidant supplied by the pump 20 is nitric acid. In this arrangement, a further pump for hydrogen peroxide is driven by the turbine 18. This pump is connected to the pipe line 12 through a valve which is opened by the pressure in the pipe line 27.
Patent GB-712443-A (GB)
Title: Improvements in or relating to machines for coating pastries or other confectionery with fondant or the like
IPC: A23G3/22
Filed: 1952-02-05
Abstract: 712,443. Coating bakers' and confectioners' goods. JAHN, R. C. Feb. 3, 1953 [Feb. 5, 1952], No. 3065/52. Class 28(1) A machine for coating pastries or the like with fondant or the like comprises an open-topped heated mixing tank from which the coating material is pumped to flow means above the tank which delivers it as at least one curtain through which removable wire trays supporting the pastries or the like are carried. Pastries and the like are placed on wire mesh trays 1 which are loaded on to endless chain conveyers 2, 3 supported on sprockets 4 rotated by electric motor 5. Below the conveyer is an open topped tank which is supported on guide elements 6 and consists of a heated water jacket 9 surrounding a fondant receptacle 7, with an agitator 8. Fondant is pumped from receptacle 7 through conduit 12 to flow pan 13 by pump 14. The bottom 15 of flow pan 13 is of inverted V-shape and is spaced from the sides to form two apertures 16 17 from which two curtains 18 19 of fondant descend on to thE moving pastries. Surplus fondant returns to the tank underneath. In an alternative arrangement, Fig. 4, the tank and flow means are in a housing 20 and there are two separate flow pans 13a, 13b. A blower 23 may be provided to blow surplus fondant from the tops of the pastries. The tank, pump &c. may be mounted on a trolley so as to be removable from the housing for cleaning and servicing, Fig. 5 (not shown).
Patent GB-635328-A (GB)
Title: Improvements relating to screw-thread rolling apparatus
IPC: B21H3/04
Filed: 1948-02-03
Abstract: 635,328. Rolling screw-threads. WICKMAN, Ltd., A. C., and ADCOCK, H. Feb. 3, 1948, No. 3121. [Class 83 (iv)] In a device for rolling screw-threads on rotating work, opposed work-driven rolls are fed into the work by a cam which is driven by one of the rolls and releases the rolls after each revolution to permit automatic re-synchronization and withdrawal of the rolls from the work, whereupon the cam is automatically reset. A U- shaped roll carrier a, pivoted at b to a support c on a slide e of a lathe &c. carries one thread forming roll m on a spindle k in a fixed bush j, the other roll q being freely rotatable on a spindle p in an arm o pivoted to the carrier at n. The cam t is rotatably mounted on a bolt s on the carrier and bears in frictional engagement with the spindle p or with cylindrical ends (not shown) of the roller q. In operation the slide e is fed towards the work with the starting portion of cam t engaging the spindle p and maintaining the distance between the operative portions of rollers q, m slightly less than the work diameter..The pressure on the work thereupon rotates the rolls and the cam to feed the rolls to full depth in the work and on completion of one revolution of the cam a recess v in its periphery allows a spring r to separate the rolls, whereupon the slide e may be retracted. During retraction a stationary spring finger y engages a recess x in the cam to re-set it to starting position. V-shaped cams 5 secured to the roll spindles p, k engage under pressure of springs 10 with similar recesses in collars 7 splined within fixed sleeves 4 so that on withdrawal from the work, the rolls will always return to synchronized starting position. The carrier a floats about pivot b under control of a spring h and a stop i so as to equalize the pressure of the rolls on the work. In a modification an idle roller is interposed between the cam t and roller q and the resetting finger y is yieldingly mounted on the carrier a to engage with a fixed stop.
Patent GB-452262-A (GB)
Title: Improvements in pyrophoric pocket lighters
IPC: F23Q2/08
Filed: 1936-02-03
Abstract: 452,262. Frictional pocket igniters. MALTNER GES., H., 15, Fichtestrasse, Offenbach-on-Main, Germany. Feb. 3, 1936, No. 3220. Convention date, May 3, 1935. [Class 75 (iii)] The hinged cover d is opened, and retained in the vertical open position, by the pivoted spring-controlled wick-cap carrier k when the cover is released by pressing inwardly a pair of spring-pressed locking levers o, the friction wheel r being coupled with the carrier k for simultaneous operation to ignite the wick. The adjoining edges f, f<1>of the casing and the cover are inclined downwardly from the hinge g. The levers o are formed with hooks o<2> for engaging slots t in the cover and finger pieces o<1> projecting through slots p in the casing. The carrier k is connected with the cover d by means of angular projections y slidable in a slot w in a plate x. The wickcap m is pivoted and slidable vertically on the carrier and is held in the closed position against the wick tube h by a spring z.
Patent GB-548421-A (GB)
Title: Television broadcast system
IPC: H04N5/067
Filed: 1941-03-10
Abstract: 548,421. Television. HAZELTINE CORPORATION. March 10, 1941, No. 3252. Convention date, April 6, 1940. Convention date, April 6, 1940. [Class 40 (iii)] Field synchronization is obtained by means of one or more pairs of pulses F, F, Fig. 2, each pulse displaced half the period of the line synchronizing pulses L and effectively having the same area and no part thereof coincident in duration with the line synchronizing pulses. The pairs of pulses are produced at the transmitter by generating pulses at twice the line frequency and phasing, shaping, and selecting these pulses as required. At the receiver, Fig. 5, the line synchronizing pulses are separated out by a single sharply-tuned or low-power parallel-resonant circuit 53, 54 and passed to a line-scanning circuit 48 through a phase shifter 55 and a pulse shaper 56, which may be as described in Specification 542,626. The field pulses are separated out by means of low-pass filter 58 followed by a network 59 and are fed through a rectifier 60 to a field-scanning circuit 49. This channel is designed to reject the fundamental line-frequency and harmonics thereof. The line-synchronizing pulse separator 52 is connected to fast-acting A.V.C. rectifier 75 for controlling various stages of the receiver. Specifications 448,065 and 448,097 also are referred to.
Patent GB-633239-A (GB)
Title: Production of thiophene
Filed: 1948-02-04
Abstract: Carbon disulphide is obtained as a by-product in the production of thiophene by separately preheating sulphur and a normal aliphatic paraffin or olefin of 4 carbon atoms to temperatures such that on admixture the temperature is 850-1400 DEG  F., maintaining the mixture at said temperature for at least .01 second, and reducing rapidly to below 850 DEG  F.  Reaction times vary with temperature and, with the preferred ranges of 1000-1200 DEG  F. for butane, and 900-1100 DEG  F. for butenes, will be from .01 to several seconds. The hydrogen sulphide and tarry complex also formed may be treated to recover sulphur for re-use.  Butadiene can be used only if admixed with predominant amounts of butane, butenes or inert diluents.  A C4 refining gas is a suitable feed.  The optimum ratio by weight of sulphur to hydrocarbon is about 0.5-4 or lower for butenes or butadiene.  Pressure is generally atmospheric or sufficient to cause flow of reactants, and turbulent flow through a coil-type pipe reactor is preferred. Unreacted hydrocarbons may be recycled, if necessary after dilution.  Reaction products may be quenched to about 300 DEG  F. by spraying with thiophene or other liquid product, tar separated, stripped, and fractionated to recover thiophene and carbon disulphide.  In examples, butane-butadiene in ratio by volume of 70 to 30, technical butene-2, and butane with recycled butene-butadiene are reacted with sulphur.ALSO:Thiophene is produced by separately preheating sulphur and a normal aliphatic paraffin or olefin of 4 carbon atoms to temperatures such that in admixture the temperature is 850-1400 DEG  F., maintaining the mixture at said temperature for at least .01 sec., reducing rapidly to below 850 DEG  F., and separating thiophene.  Reaction times vary with temperature and, with the preferred ranges of 1000-1200 DEG  F. for butane, and 900-1100 DEG  F. for butenes, will be from .01 to several seconds.  The hydrogen sulphide and tarry complex also formed may be treated to recover sulphur for re-use.  Butadiene can be used only if admixed with predominant amounts of butane, butenes or inert diluents.  A C4 refining gas is a suitable feed.  The optimum ratio by weight of sulphur to hydrogen is about 0.5-4, or lower for butenes or butadiene.  Pressure is generally atmospheric or sufficient to cause flow of reactants, and turbulent flow through a coil-type pipe reactor is preferred.  Unreacted hydrocarbons may be recycled, if necessary, after dilution.  Reaction products may be quenched to about 300 DEG  F. by spraying with thiophene or other liquid product, tar separated, stripped, and fractionated to recover thiophene and carbon disulphide.  In examples, butane-butadiene in ratio by volume of 70 to 30, technical butene-2, and butane with recycled butene-butadiene are reacted with sulphur.
Patent GB-1454043-A (GB)
Title: Method and composition for selective control of weeds in maize
IPC: A01N25/32
Filed: 1974-01-24
Abstract: 1454043 Herbicide/antidote composition CIBA-GEIGY AG 24 Jan 1974 [25 Jan 1973] 03293174 Heading A5E A method of selectively combating weeds at a locus comprises (a) applying to the locus before, during or after sowing maize seed therein; or (b) applying to maize seed itself prior to sowing in the locus either simultaneously, or successively in either order: i) a compound of formula I: wherein: R 1  represents a methyl or methoxy group; and ii) a compound of the formula II: wherein R 2  and R 3 , which may be the same or different, each represent an allyl or C 1 -C 4  alkyl group, or together with the nitrogen atom to which they are bonded represent an unsubstituted or 2-methyl substituted 1, 3-oxazolidine ring, the amount of ii) being sufficient to protect the maize seeds or germinating maize shoots from attack by i). Compositions of i) and ii) also are claimed. Compound i) is N-(2'-methoxyethyl)-2, 6-dimethyl-chloroacetanilide or N-(2'- methoxyethyl) - 2 - methyl - 6 - methoxy - chloroacetanilide; typical compounds ii) are N, N-diallyl-dichloroacetamide; N-allyl-N-ethyl-dichloroacetamide and 2, 2-dimethyl-3-dichloroacetyl-1, 3-oxazolidine. Specification 1396941 is referred to.
Patent GB-695148-A (GB)
Title: Treatment of paper materials
IPC: D21H17/50
Filed: 1951-02-12
Abstract: 695,148. Paper containing synthetic resin. DU PONT DE NEMOURS & CO., E. I. Feb. 12, 1951. [April 7, 1950.] No. 3348/51. Class 96. Paper of improved wet strength &c. is made by adding to pulp 0.1 to 25 per cent of a ureaformaldehyde condensation product modified with hexamethylene diamine. The mol ratio of formaldehyde to urea may be 1¢ to 3 : 1 and there may be 5 to 30 parts of the diamine to 100 of the urea-formaldehyde. The modified resin may be formed by using a hexamethylene diamine salt of an organic acid e.g. acetic, or inorganic acid. Specifications 641,703, [Group IV (a)], and 688,794, are referred to.
Patent GB-512554-A (GB)
Title: Improvements in and relating to the manufacture of hats, hat bodies and similar articles
IPC: A42C1/08
Filed: 1939-02-01
Abstract: 512,554. Clipping hat bodies. BOHM, V. Feb. 1, 1939, No. 3373. Convention date, Feb. 19, 1938. [Class 63] A shearing machine for hat bodies comprises rotating blades 3 co-operating with a stationary blade 4 and a revolving work support 1 over which the work hangs loosely, the work being fed past the cutter by the revolving support. The work support urges the work against the blade 4, so that the length of cut may be adjusted by changing the blade. A rotating brush 7 or a card raises the nap before the work reaches the knives. The trimming is performed through a slit 6, a hood 5 surrounding the rotary knife and forming a chamber connected to suction for the removal of debris. The work support is rotated by a flexible shaft.
Patent GB-985149-A (GB)
Title: Improvements in stabilizing iodine isomerized vitamin a esters
IPC: A61K31/59
Filed: 1963-01-28
Abstract: In a process for isomerizing all-trans Vitamin A, cis-trans Vitamin A, and esters thereof, by contact with iodine in an inert solvent, the isomerization mixture subsequently is contacted at - 20 DEG  C. to 25 DEG  C. with an alkali metal borohydride to reduce the iodine; the alkali metal may be sodium, potassium or lithium. The reduction may be carried out in the presence of 0.5% 10% by volume of an alkanol, using alkali metal borohydride in a quantity of from 5 to 10 times the weight of iodine present, and subsequently washing with an aqueous alcohol solution.  Examples are given.
Patent GB-433043-A (GB)
Title: Improvements in and connected with thermostatic regulator valves
IPC: G05D23/12
Filed: 1934-02-02
Abstract: 433,043. Thermally actuated valves. SOUTH METROPOLITAN GAS CO., CHANDLER, D., and SKINNER, A. J., 709, Old Kent Road, London. Feb. 2, 1934, No. 3555. [Class 135] A thermostatically - controlled regulator valve for two media, such as gas and air, under pressure for a blast furnace connected at 3, 5, comprises a twin diaphragm device 8, 12, controlling simultaneously-to increase or decrease the flows through them-valve passages 7, 17 for the gas and air respectively. The inlet air pressure acts upon one side of the twin diaphragms 8, 12 through an adjustable throttle device 15, the action being regulated by a thermostatically controlled release valve 21 according to the furnace temperature. The inlet gas pressure acts in opposition to the air pressure upon the other side of the diaphragms. Preferably the two valves are mounted upon a single spindle 9 and are of duplex form 10, 11 and 18, 19 so as to cut off the flow in each extreme position.
Patent GB-1112815-A (GB)
Title: Method and apparatus for assaying the lithium isotope of mass no.6
Inventor: BRUNO GEORGES
IPC: G01N23/22
Filed: 1967-01-24
Abstract: 1,112,815. Analyzing materials using deuterons. COMMISSARIAT A L'ENERGIE ATOMIQUE. Jan. 24, 1967 [Jan. 24, 1966], No. 3559/67. Heading G1A. The lithium-6 content of a sample is measured by directing on to the sample a beam of deuterons and detecting the α particles produced by the reaction Li6 + d # 2α which are simultaneously emitted by the sample in directions corresponding to opposite directions in the centre of mass system and with energy within a given range. Collimated 700 keV deuterons from an accelerator impinge on a carbon or plastics holder carrying a film of material to be analyzed for Li6. Silicon junction detectors 10, 10' located at 85 degrees to beam direction detect α particles emitted at right angles to the beam in the centre of mass system. The outputs of detectors 10, 10' are fed via amplifiers 14, 14'; 16, 16' and single channel pulse height analyzers 18, 18' to a coincidence circuit 20, which gives an output pulse only when detectors 10 and 10' simultaneously receive α particles of the same energy. A pulse height analyzer 26 may be provided to determine the height difference between spectrum peak and the background level and apply a signal to scaler 22 to compensate for background. In order to compensate for variations in the deuteron beam intensity the same may be measured by a Faraday cage 23 which receives the beam after it has passed through the sample and feeds a current integrator 24. In a modification Fig. 2 (not shown), the deuteron beam intensity is monitored by scattering some of the deuterons which have passed through the sample on to a silicon junction detector by means of a gold foil.
Patent GB-657286-A (GB)
Title: Improvements in adjustable bed-tables and the like
IPC: A47B23/00
Filed: 1949-02-10
Abstract: 657,286. Bed-tables. MAKOWIECKI, E. Feb. 10, 1949, No. 3673. [Class 52 (iii)] The top F of a bed-table is pivotally mounted at or near its front edge on side bars D which may be additionally connected by a forwardly disposed rail but provide unobstructed space between them at the rear. The top can be provided with stays and the legs C supporting the side bars are preferably pivoted thereto. Bracket shelves or tumbler holders may be secured to the side bars.
Patent GB-328685-A (GB)
Title: Improvements in or relating to reciprocating or percussive tools
IPC: B25D17/26
Filed: 1929-02-04
Abstract: 328,685. Holman, A. T., and Holman, K. J. Feb. 4, 1929. Channels in percussive drills. - In a percussive drill or like tool comprising a hammer piston 10 working in a cylinder 17 and cooperating with rifle-bar mechanism 12, 13 and with a chuck sleeve 19, a conduit 30 leads from a port 31 in the cylinder, located behind the exhaust port 26, to a space 32 around the drill chuck 20, whereby oil scraped from the interior of the cylinder by the piston into the port 31 is blown through the conduit 30 to the outer surface of the chuck. The conduit 30 may also deliver to the outer surface of the chuck sleeve 19. The drill is fitted with an air-line oiler, and the blowing means described in Specification 328,977, [Class 124, Stone &c.], may also be provided.
Patent GB-605998-A (GB)
Title: Improvements relating to land and water vehicles
IPC: F41H7/00
Filed: 1946-02-06
Abstract: 605,998. Land and water vehicles. FOOD MACHINERY CORPORATION. Feb. 6, 1946, No. 3785. Convention date, Feb. 15, 1943. [Classes 113 (ii) and 114] A land and water vehicle is provided with a cargo compartment towards the rear, the floor 20 of which forms the top of a shallow compartment 21 in which are housed the engine 50 and the transmission 51. The transverse shaft of this transmission drives endless tracks fitted with grousers which propel the craft on water and support it on land. Specification 605,997 is referred to.
Patent GB-778697-A (GB)
Title: Improvements relating to containers for the storage of stretchers and first aid requisites
Inventor: VIRR JOHN JERVIS
IPC: A61G1/04
Filed: 1955-02-09
Abstract: 778,697. Boxes for stretchers &c. THEEDAM, Ltd., E. C. Feb. 9, 1956 [Feb. 9, 1955], No. 3793/55. Class 18. [Also in Group XIV] A lockable box with a compartment 103 for a foldable stretcher and a compartment 104 is subdivided for first aid requisites and incorporates a lockable safe 18 for drugs. The box is made of sheet metal and its top hinged below its upper edge is secured by toggle fastenings and locked with padlocks. The lower compartment 103 is closed at one end by a lid 106 secured with bolts 16 and wing nuts 17. A central pigeon hole houses the safe 18 whose door 181 is secured by a lock 182 of cylinder type. The box is reinforced externally with sheet metal bands 19 carrying pivotal loops for suspending or lifting the box. Soft rubber gaskets 101a, 106a seal the lids against entry of dust or moisture. Specification 778,698 is referred to.