baber/WOPTO huggingface dataset:
Patent GB-516723-A (GB)
Title: An improved method of and means for indicating the direction of a magnetic field of any kind
IPC: G01R33/02
Filed: 1938-05-21
Abstract: 516,723. Magnetic tests and measurements. HUGHES & SON, Ltd., H., SPROULE, D. O., and HUGHES, A. J. May 21, 1938, No. 15223. [Class 37] The direction of a magnetic field is indicated by means of a cathode ray tube having two electrodes intercepting the beam and receiving currents therefrom depending on the deflection of a beam by a magnetic field, these currents being supplied to a differential current meter. In the compass shown in Fig. 1, a cathode ray tube a is arranged with the longitudinal axis b of the beam vertical and has a pair of electrodes d, e located in a plane above and at right angles to the beam, these electrodes being separated by a gap f which is small compared with the width of cross section of the beam c so that the part of the beam intercepted by one electrode increases as the other decreases. A shielding electrode c<1> is earthed. The electrodes d, e are connected to the coils g, h of a differential milliammeter z either directly or through amplifiers k, l. The beam c is deflected by the horizontal component of the magnetic field, the currents imparted to the electrodes d, e varying differentially with the orientation, the pointer x of the milliammeter z giving an indication of the direction. In the dip indicator shown in Fig. 3 the cathode ray tube a is arranged with the longitudinal axis of the beam c horizontal. The tube a is mounted in a casing m rotatably connected to an inspection chamber n by a,pivot o. In this chamber is a differential electrostatic, piezo-electric, or other non- magnetic instrument z having a pointer x<1>. An inclined glass plate p with one half silvered at q enables the bubble of a spirit level r to be observed simultaneously with the reflection of the index x<1> through a window t. The electrodes d, e are connected to the instrument z through slip-rings u and brushes v. The casing m is provided with a circumferential scale m<1 >cooperating with a vernier ring n<1> on the chamber n so that angular rotation between the part m, n may be read directly.
Patent GB-987815-A (GB)
Title: Improvements in or relating to mineral mining machines
Inventor: KENT CECIL
IPC: E21C25/10
Filed: 1963-04-18
Abstract: 987,815. Mineral mining machines. N. J. MUSCHAMP & CO. Ltd. Feb. 10, 1964 [April 18, 1963], No. 15229/63. Heading E1F. Secured to the curved periphery of a rotatable cutter drum 2 of a mineral-mining machine are spaced mountings 5 on which pick boxes 4 are disposed to present cutter picks located in the boxes in one helical manner and mined mineralguiding faces 5g in another helical manner. The helices H6-H7 along which the faces 5g are spaced have a greater inclination to the axis of rotation of the drum than the helices H1-H5 along which the picks are spaced. A precutting shearer disc arrangement is formed at the free end of the drum by vanes 7 spaced along a circular path and carrying pick boxes disposed at differing inclinations to the vanes.
Patent GB-904473-A (GB)
Title: Production of rigid articles from vinyl chloride polymers
Inventor: RENFREW CHARLES DEREK
IPC: B29C45/00
Filed: 1960-05-02
Abstract: Moulded articles of a vinyl chloride homopolymer or copolymer containing at least 95% vinyl chloride are produced by dispersing and suspending the polymer in 15 to 35 weight per cent. of a liquid organic plasticizer, transferring the dispersion along the screw of an extruder and feeding it into an enclosed mould where it is maintained until it gels.  The extruder barrel is preferably heated to 250 DEG  to 350 DEG F. and is preferably hotter at the delivery end than the feed end.  Plasticizers specified are dibutyl, diamyl, dioctyl and diallyl phthalates, dibutyl diglycollate, dibutyl and dibenzyl sebacates, dioctyl maleate, dibutyl acetylricinoleate, butylphthalyl butyl glycollate, tricresyl and trioctyl phosphates and esters of waste nylon (adipic) acids.  In the example the polymer is a mixture of equal parts of granular and paste grade polyvinyl chloride containing 2% viscosity depressant, 2% epoxidized soya oil and 3% calcium stearate; the plasticizer is isooctyl adipate.
Patent GB-1462995-A (GB)
Title: Method of producing fibre pulp from vegetable or fibrous material
Inventor: REINHALL R
IPC: D21B1/14
Filed: 1974-04-09
Abstract: 1462995 Disc mills R B REINHALL 9 April 1974 [27 April 1973] 15596/74 Heading B2A [Also in Divisions D1 and D2] In a method of manufacturing pulp from fibrous vegetable material such as wood chips, in which the starting material is preheated by means of steam in a closed vessel 14 and then ground between the discs 22, 28 of a disc mill 18 under superatmospheric pressure, a gas other than steam is supplied to vessel 14 via line 5 to ensure that the pressure therein is higher than that in the disc mill. The gas may be air or a bleaching gas e.g. SO 2 . Grinding may be effected in the presence of a mixture of a sulphite and bisulphite, or steam.
Patent GB-144687-A (GB)
Title: An improved method of burning fuel in furnaces
Filed: 1920-06-09
Abstract: 144,687. Pintsch Akt.-Ges., J. Dec. 11, 1917, [Convention date]. Steam-generator furnacesÀ-A fuel-distilling chamber c is provided between the fuel hopper a and the grate b, so that tar, ammonia, &c. and some of the gases of combustion may be withdrawn by a fan f from the top of the chamber c through a pipe d and led to a by-product recovery plant e. The residual permanent gases such as carbon monoxide and hydrogen produced at the lower part of the chamber c are returned to the furnace through burners g.
Patent GB-128922-A (GB)
Title: Improved Change-speed Gear for Milling and like Machines.
Inventor: KEMPIN RICHARD AUGUSTUS
IPC: B23Q5/14
Filed: 1919-06-21
Abstract: 128,922. Kempin, R. A. June 26, 1918, [Convention date]. Variable-speed toothed gearing.-In a changespeed gear for machines, in which a change-speed sleeve rotates on the machine spindle, the rela. tive speed between the change-speed sleeve and the tool spinclle is reduced to allow the bearing fit " between the sleeve and spindle to be suf. ficiently close to be suitable for both high and low speeds of the spindle. The reduction is effected by driving the spindle through an intermediate shaft by a set of gears directly on the spindle for high speeds, and a second set of gears on the sleeve surrounding the spindle for low speeds. The intermediate shaft 19, Fig. 2, is adapted to be driven at four different speeds by means of gears keyed to it engaging with sliding gears 28, 29 on the main driving shaft 27 which is driven from a pulley 18 keyed to the shaft but mounted on a sleeve on the frame to relieve the shaft from strain. The eight high speeds of the machine spindle 13 are obtained from the intermediate shaft through a sliding double gear 11 on the spindle, the change-speed sleeve 12 in this case not being driven. The eight low speeds are obtained from the intermediate shaft by means of a sliding multiple gear 5 on the sleeve and the reducing train 9, 10, 39, 40. The sliding gears are engaged and disengaged at correct times by the two cam-plates 101, 103 through levers pivoted to the frame, the cam-plate 101 having a camgroove at its back surface to operate a sliding sleeve 31 carrying the gears 39. 40 and both camplates being hand operated. The arrangement is such that gears 28, 29 and gears 5 and 11 are not in mesh together and that the reducing train controlled by sleeve 31 is only in gear when the drive is through gear 5.
Patent GB-212176-A (GB)
Title: Hydraulic propulsion arrangements for ships
IPC: B63H11/08
Filed: 1923-06-16
Abstract: 212,176. Jensen, H. June 16, 1923. Propelling, steering, and manoeuvring by water jets.-In water jet propulsion apparatus, the jet is forced from a ring of nozzles each consisting of a tube or channel, the axis of which lies on a conical surface. The ring of nozzles is corried directly by the pump which has a casing so shaped as to produce an easy flow to the nozzles. An after fairing 1 has a flange with openings 3 adapted to receive the converging nozzles 4. The outer ends of the nozzles lie in a plane perpendicular to the axis, and may have a number of internal ribs. The pump casing 5 is screwed to the flange 2, is open and its forward end except for arms 6 which carry the bearing 7 of the pump shaft 8. The pump rotor 10 has a number of blades 11 which directs the water to the apertures 3. The apparatus may be mounted outside the hull of a ship, the driving shaft 8 extending through a stuffing box in the stern, or may be mounted inside with only the nozles projecting, in which case the front of the pump is connected by pipes with an intake opening in the bottom of the ship. A rudder fitted in the rear of the jets is adapted to be placed athwartships for propulsion astern.
Patent GB-296828-A (GB)
Title: Improvements in and relating to conveyors
IPC: F16H27/00
Filed: 1927-06-14
Abstract: 296,828. Dunlop, S., (McQuade, M. J.). June 14, 1927. Screw conveyers.-In a screw conveyer particularly for material such as bituminous coal subjected to heat in a retort means are provided for rotating the shaft a predetermined niunber of turns in a direction to advance the material, reversing the direction of rotation for a less number of turns and again rotating it in a direction to advance the material. The conveyer 2, Fig. 1, moves the material from the inlet 3<1> of the retort to the discharge aperture 4<1>, and its shaft 5 is connected by chain-and-sprocket gearing 7 to a shaft 9. A disc 10 on the shaft 9 carries radiallyextending pins 11, Fig. 4, each provided with a roller 12, which engage a fin on the periphery of a disc 14 on a power-driven shaft 15. The fin comprises a series of inclined members 16 - - 19, Fig. 5, and a member 21 having a part 22 which effects the reversal of the direction of rotation.
Patent GB-141765-A (GB)
Title: Improvements in shuttle checking motions for looms
IPC: D03D49/36
Filed: 1918-09-28
Abstract: 141,765. Ashworth, W. Sept. 28, 1918. Checking shuttles and pickers. - In a shuttle-checking motion of the kind in which a supporting - bracket, such as a, is attached to the front of the layboard and a slidable and adjustable spring-controlled rod is arranged in the bracket, an adjustable arm e is secured to the rod c so that its inner end or head f passes within the shuttle box at the outer side of the picker. When the shuttle enters the box, the picker engages the arm and compresses the spring g, which returns the parts to normal position when the shuttle is picked in the opposite direction. The head f is faced with a leather or other pad k<1>, and an adjustable collar h having a flat face h' is provided for preventing rotation of the rod c.
Patent GB-291362-A (GB)
Title: Improvements in or relating to signalling devices for vehicles
IPC: B60Q1/34
Filed: 1928-05-30
Abstract: 291,362. Wittevrongel, J. May 30, 1927, [Convention date]. Road-traffic signals on vehicles.-A signal for use on road-vehicles comprises a rotatable glassfronted sign 1 in the shape of an arrow which is illuminated by lamps 3 only when it is in one or other of its signalling positions. This intermittent lighting is obtained by means of two contacts on the wall of the arrow co-operating with four conducting blocks 8, 8<1> arranged in a fixed fibre member. The arrow is rotated by a rope 6 engaging a pulley 5 on the shaft 4 of the arrow. Duplicate arrows at front and back of the vehicle may be simultaneously operated by one knob 13, as shown in Fig. 4. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification, Fig. 5, wherein the arrow 1 is rotated by a rack 15 which is moved by an electromagnet 16 to an extent dependent on which of the switches 19, 19<1>, 19" is closed and which of the resistances 20, 20<1>, 20" is in consequence included in the circuit of the battery 18. A multiple-position: turn-switch may replace the push-pull knobs 19,. 19<1>, 19". This subject-matter does not appear in the Specification as accepted.
Patent GB-817426-A (GB)
Title: Stem and stuffing box construction for non-rising stem gate valves
IPC: F16K41/00
Filed: 1956-05-22
Abstract: 817,426. Valves. VOLPIN, A. S. May 22, 1956, No. 15841/56. Class 135. The stem 25 of a gate valve, not shown, which passes through the stepped bore in a twopart bonnet 2, has an inner cylindrical part 26 from which depends a threaded portion 30 for engagement with the valve; at the junction of the parts 30, 26 is an annular shoulder 31 that sealingly engages a seat 12. A ball or other bearing 33 is provided around the stem whilst an 0-ring seal 36 is disposed between the threaded parts 6, 14 of the bonnet. Around the outer cylindrical stem part 27 is a washer 37 surmounted by a conventional compressible packing 38 of metal or other material urged against the washer by a gland 40 and nut 23. A seal 47 that co-operates with the stem part 26 comprises a slidable metal ring 47a incorporating inner and outer resilient 0-rings 50, 51 engaging the part 26 and the wall 9 of the bonnet bore, respectively; a shoulder 10 and the lower face of the bearing 33 form stops for limiting movement of the seal 47. A lubricant seal is injected through a fitting 45 to fill all the bore space between the washer 37 and the seal 47; any leakage of the lubricant results in the pressure in the valve body forcing the seal 47 towards the bearing 33 and upon contacting the latter the pressure causes the rings 50, 51 to effect a fluid-tight seal between the stem part 26 and wall 9. Introduction of fresh lubricant will urge the seal 47 towards the lower stop 10.
Patent GB-664644-A (GB)
Title: Improvements relating to devices employing thermo sensitive resistances for regulating the output voltages of amplifiers
IPC: H03G1/00
Filed: 1949-06-14
Abstract: 664,644. Automatic volume control. CHALHOUB, C. June 14, 1949 [June 19, 1948; Nov. 25, 1948], Nos. 15849/49 and 15850/49. Class 40 (iv). [Also in Group XL (c)] An automatic gain  control system comprises a pair of thermosensitive resistors 1, 2 having negative temperature coefficients and forming a potentiometer over which the input is applied to the amplifier 3, the resistor 2 being provided with an independent heater circuit connected to the output of the amplifier. The arrangement is rendered independent of variations in the ambient temperature, either by. choice of resistors with suitably differing thermal characteristics or, Fig. 2 (not shown), by insertion of a fixed resistance of suitable value in series with the resistor 1. The output voltage of the amplifier may be made manually adjustable by means of a variable resistor, Fig. 3 (not shown), connected in series with the heater of the resistor 2.
Patent GB-984529-A (GB)
Title: Knotting device
IPC: B65H69/04
Filed: 1961-05-02
Abstract: 984, 529. Knot-tying devices. W. REINERS. May 2, 1961 [May 18,1960], No. 15850/61. Addition to 923, 751. Heading D1C. In a knotter for forming a fisherman's knot and comprising a pair of knotting bills, the latter are opened to release the thread ends before the component knots are drawn together by a tensioning member formed at one end with a V-shaped notch towards which said knots are drawn by rectilinear movement of said member, and the base surface of said notch is cut back, dished or grooved to eliminate or reduce contact of the knots with the base surface as they approach their mutuallycontacting position. As shown, the base surface of the V-shaped notch in the tensioning member 17 is formed with a depression 17a to accommodate the mutually-contacting component knots 101, 102.
Patent GB-841114-A (GB)
Title: Improvements in or relating to hack-saws
IPC: B23D51/12
Filed: 1957-05-18
Abstract: 841,114. Tensioning saw blades. KAY, P. A. March 19, 1958 [May 18, 1957], No. 15859/57. Class 61. In a hacksaw provided with blade tensioning means and having one end of the blade non- rotatably secured to arm 3 of a U-shaped frame, the other end of the blade is secured to a tensioning member 8 passing freely through the other arm 3A of the frame, the member 8 having a threaded end portion and a nut 13 screwed thereon, a compression spring 12 encircling the member 8 between the nut and the frame and an abutment 15 on the screwed portion 14 against which the nut is adapted to be tightened. As shown, the abutment 15 is formed by the inner end of the threaded portion of the bolt-like member 8. In a modification, the abutment is formed by a shoulder with or without a washer interposed between the nut and the spring. The end of the blade 4 is fixed in a slot in the end of the tensioning member 8 by a pin 10. The blade is fixed in aligned slots 2, 2A in the ends of the arms 3, 3A, the member 8 passing through a bore 7 of diameter less than the width of the blade and coaxial with the slot 2A. Specification 841,113 is referred to.
Patent GB-647859-A (GB)
Title: Improvements in or relating to copper tin alloys
IPC: C22C9/02
Filed: 1948-06-12
Abstract: A machinable phosphor-bronze has the following composition: Sn 1-less than 5.0 per cent, P 0.02-0.4 per cent, Te 0.2-1.0 per cent, Cu with the usual impurities, the remainder.  The tellurium may be incorporated in the bronze by adding it to the bronze melt in the form of the free element sealed in copper tubes. Specification 647,877 is referred to.
Patent GB-676574-A (GB)
Title: Improvements in the refining of fatty glycerides
IPC: C11B3/06
Filed: 1950-06-27
Abstract: Fatty glycerides are alkali-refined in the presence of a small amount of a tartaric compound.  Any usual alkali metal hydroxide may be used for the refining, preferably caustic soda.  The free fatty acids are neutralized to form soap, which separates in the aqueous phase along with other impurities, and the aqueous phase is then separated from the refined oil phase by gravity, as in kettle refining, or by centrifuging.  The presence of the tartaric compound reduces the losses of neutral oil due to some saponification thereof and some entrainment of the oils in the soap.  The tartaric compound may be added to the alkali before it is added to the oil, or added to the oil separately at the same time as the alkali or later.  The tartaric compounds specified comprise tartaric acid, Rochelle salt (sodium potassium tartrate tetrahydrate), cream of tartar (potassium acid tartrate) and sodium tartrate.  The tartaric acid may be the commercial raccinic mixture.  The amount of the tartaric compound does not exceed 0.75 per cent calculated as anhydrous and based on the weight of glyceride treated, and preferably ranges from 0.02 to 0.5 per cent.  The refining of soya-bean oil and cottonseed oil are particularly referred to.
Patent GB-1045731-A (GB)
Title: Improvements in or relating to coagulation and/or conditioning of sewage sludges
Inventor: CRUNDALL SYDNEY FRANCIS WILLIA
IPC: C02F1/52
Filed: 1962-04-27
Abstract: Sewage sludge is coagulated by aqueous solutions of conditioners of a concentration not greater than 0.075/by weight. Inorganic conditioners are calculated as metal oxides. Exemplified is aluminium chlorohydrate expressed as Al2O3.
Patent GB-570564-A (GB)
Title: Improvements in or relating to the manufacture of polymerisation products from polymerisable organic chlorine compounds
IPC: C08F4/32
Filed: 1941-12-15
Abstract: Chlorethenoid compounds, i.e. of the general formula CH2 = C(Cl)- are polymerized in the presence of hexamethylene-triperoxide-diamine and in the liquid phase, the reaction temperature being maintained not higher than 60 DEG  C. Typical chlorethenoid compounds are a -chlorostyrene, a -chloroacrylic esters, vinyl chloride and vinylidene chloride. The hexamethylene-triperoxide-diamine is added in amount from 0.1 to 10 per cent of weight of the polymerization mixture; it may constitute the sole polymerization catalyst.  The polymers have increased thermal stability and higher softening temperatures. An example describes the polymerization of vinyl chloride in methyl alcohol to produce a white, spongy polymer.  A sample has been furnished under Sect. 2 (5) of polymeric vinylidene chloride, polymerization being effected in an aqueous emulsion. German Specification 263,459 is referred to.
Patent GB-648873-A (GB)
Title: Improved forceps or tweezers
Inventor: BARRE MARIUS JULES
IPC: A61B17/28
Filed: 1948-06-16
Abstract: 648,873. Tweezers. GREEN, H. June 16, 1948, No. 16252. [Class 61(ii)] [Also in Group VI] A pair of forceps is formed from two rigid arms 12, 13 each shaped to a channel section in the region of the pivot 15 and assembled with one channel fitted within the other. A coil or blade spring is fitted to urge the tips 23 apart, the movement being limited by the engagement of the two channel sections on the opposite side of the pivot. The latter end of the instrument can be used as a gripping device.
Patent GB-318534-A (GB)
Title: Improvements in and relating to the preservation of eggs and/or other perishables
IPC: A23B5/10
Filed: 1928-06-06
Abstract: 318,534. Nierinck, F. June 5, 1928. Spindles.-A three-way cock 4, used in connection with an egg-preserving container 1 for connecting the container to the outside air or, through a pressure-reducing valve, to another vessel filled with the gas under pressure, is operated by a spanner 7 attached to a pair of jointed self-adjusting arms 10 and a handle 8 outside the apparatus. The spanner 7 is secured by a detachable pin to the valve 4.
Patent GB-924387-A (GB)
Title: Improvements in and relating to frequency multiplying apparatus
Inventor: RUDGE PETER JOSEPH
IPC: G01P3/489
Filed: 1960-05-09
Abstract: 924,387. Frequency changing; changing number of phases ; waveform changing. ROLLSROYCE Ltd. May 9, 1961 [May 9, 1960], No. 16348/60. Class 38 (2). In a frequency multiplier, three-phase sinusoidal signals, for example from a tachogenerator coupled to an aircraft engine, are first phasemultiplied, each phase signal thus produced being converted into a square wave fixed in phase relative to its parent sinusoid, then differentiated to produce a pulse train which is amplified and counted by a gated digital counting device. In the arrangement shown, three phase signals at the terminals 1<SP>1</SP>, 2<SP>1</SP>, 3<SP>1</SP> are phase multiplied by the transformer network T1-T7 and by the pairs of resistors connected across the phases to produce 12 phases each differing from the next by 15 degrees. Each phase sinusoid is fed to a different one of twelve identical transistorized square wave generators 1-12, the square waves produced being differentiated by the R.C. network comprising capacitor 17 and resistor 16. The pulses are fed to a phasesplitting circuit A comprising transistor 18 and capacitors 19 and 20, the respective pulses being amplified by transistor amplifiers B, C. The amplified negative pulse trains are each applied to the transistor inverter E through the reverse connected germanium diodes D. The positive pulse train produced across the capacitor 23 is converted by a capacitor (not shown) into alternate positive and negative-going spikes which are applied to the terminals XY, for example of a bi-stable counting device.
Patent GB-405516-A (GB)
Title: Improvements relating to automobile hand brake and other levers
IPC: B60T7/10
Filed: 1933-06-07
Abstract: 405,516. Locking levers. WYNDHAM, J. H., Uplands, Grosvenor Road, Godalming, Surrey. June 7, 1933, No. 16349. [Class 80 (iii).] A device for locking a hand brake or other lever comprises a rack member 10 rotatably mounted on the lever 1 and engageable with a pin 17 on a pawl member 12 mounted on a fixed pivot 15. When the lever is turned in the direction of the arrow about its pivot 6 the pawl member is caused to slide up the lever which depresses a spring plunger 19 carried by the pawl. The rack 10 is formed on a rod which is rotatably mounted in the lever and has a winged head 11 whereby the rack may be disengaged from the pin 17 to permit the return of the lever. A short cam lever pivoted to the pawl member 12 and engaging the lever 1 at one end and connected to a spring at the other may replace the plunger 19.