baber/WOPTO huggingface dataset:
Patent GB-992017-A (GB)
Title: Process for the manufacture of peracetic acid
IPC: C07C409/26
Filed: 1961-08-22
Abstract: Peracetic acid is prepared by the oxidation of acetaldehyde with molecular oxygen or a gas containing oxygen, in an inert solvent in the presence of 0.002 to 1% of a cobalt salt as catalyst.  The catalyst is inactivated when 45 to 55% of acetaldehyde is oxidized, the solution distilled under reduced pressure and the parametic acid concentrates if desired.  Ethyl acetate or acetone may be the solvent and the reaction is at a temperature within the range 15 DEG  to 50 DEG  C.  The catalyst is inactivated by the addition of a stabilizer such as polyphosphates, e.g. the sodium salt of a polyphosphoric or ethyl hexyl polyphosphoric acid ester, ethylenediamine tetraacetic acid, or hydroxyquinoline, or by passing the solution through an ion-exchange resin.
Patent GB-1104347-A (GB)
Title: Improvements in or relating to solid fuel-fired heating appliances
Inventor: BENNETTS HENRY CARLYLE WILSON
IPC: F24C15/04
Filed: 1965-07-17
Abstract: 1,104,347. Windows for solid fuel stores. CHATELAINE Ltd. 18 July, 1966 [17 July, 1965], No. 30483/65. Heading F4W. A closed solid fuel stove has a bay window 3 extending the full width of the appliance. The window may be formed in a door, and may be a single curved pane, or may have front and side panes connected by astragals.
Patent GB-255301-A (GB)
Title: Improvements in brakes for the front wheels of motor vehicles
IPC: B60T8/24
Filed: 1925-12-02
Abstract: 255,301. Albion Motor Car Co., Ltd.. and watt, J. Dec. 2, 1925. Force-transmitting mechanism; compensating for wear.-In steering-wheel brake mechanism of the kind comprising actuating arms mounted respectively on the anchor plate and on the front axle and connected by a link, the link is arranged to be parallel to the steering axis when the wheel is in the straight line position so that when the wheels are deflected from this position the brakes tend to come off and there is no risk of their being self-applied. The link 12 has a ball-andsocket connection 14, 15 with the arms 5, 11 secured respectively to the cam or like spindle 4 and an operating shaft 10 mounted on the front axle 8. The arms 5, 11 are angularly adjustable on the spindle and shaft and are adapted to be clamped thereto with the aid of serrations as shown. The link 12 is also adjustably connected to the arm 5 by means of a screwed spindle 17 to permit of adjustment of the brake shoes to com. pensate for wear, the inclination of this spindle being such that the adjustment does not appreciably displace the link. The link is disposed parallel to the pivot axis 00 of the wheel when the wheel is in the straight-line position and preferably also the lines XX, YY passing through the ends of the link and the axes of the spindle 4 and shaft 10 are substantially parallel so that the link remains parallel to the axis 00 during the actuation of the brake. Deflection of the wheel in either direction for steering causes down. ward movement of the arm 5 thus tending to take off the brake.
Patent GB-783099-A (GB)
Title: Improved variable ratio drive means
Inventor: HASLAM-JONES FRANK HORSFIELD
IPC: F16H3/66
Filed: 1954-10-22
Abstract: 783,099. Change-speed gearing. JARDINE, Ltd., J. Sept. 13, 1955 [Oct. 22, 1954], No. 30518/54. Class 80 (2). Change-speed gearing, for a lace machine, comprises a planet carrier 5, formed with V-belt grooves and driven from an electric motor 8, supporting planet gears 12, 16, 18 fast on common spindles and meshing a sun gear 17, fast on a driven shaft 4, and sun gears 10, 19, rotatable on the driven shaft but selectively stationed by applying brake means to drums 21, 26, to drive the shaft 4 at different speeds. The two brake means are operated by controls independent of each other. The drum 21 is formed with notches 22 engaged by a V-shaped detent 24 on a lever biased towards the disengage position by a spring 25, and operated against the bias of this spring by a pedal. The brake drum 26 is stationed when a brake band 27 is applied to it, on operation of a handle 40 connected thereto by links 36, 34, &c. and cam means 33. The sun gears 10, 17 are of the same pitch diameter, but the sun gear 17 has one more tooth than the sun gear 10. If both brakes are applied at the same time, the shape of the detent 24 and the notches 22 causes the detent to be forced out of engagement with the notches.
Patent GB-224734-A (GB)
Title: Improvements in or relating to centrifugal liquid separators
IPC: B04B9/12
Filed: 1923-12-04
Abstract: 224,734. Risberg, J. V. M. Dec. 4, 1923. Driving.-The bowl spindle of a centrifugal liquid separator consists of a sleeve 1 enclosing a stationary rod 8; ball bearings 5, 6, 7 are arranged between the rod and sleeve and are protected by the sleeve against the entrance of injurious matter such as milk or water. The rod 8 is supported in a sleeve 9 through the medium of a guide' 12 with at least three spring buffers 10 to absorb the vibrations of the rod. The lower end of the sleeve 1 has a worm 3 engaged by the wheel 4 which rotates in an oil bath. In a modification, the rod 8 and its connection with the frame are resilient to absorb vibrations. The ball bearings may be lubricated through the channel 13. The shaft 15 of the worm-wheel 4 is supported by ball bearings 16, 17, Fig. 2, which can be lubricated through normally-closed passages 20. These bearings are protected from the entrance of foreign matter by felt packing 19 in rings 18.
Patent GB-782480-A (GB)
Title: Method of producing mono-esters of monocarboxylic acids with di- or tri-hydric alcohols
IPC: C11C3/00
Filed: 1955-10-26
Abstract: Mono-esters of monocarboxylic acids with di- or tri-hydric alcohols are prepared by reacting at an elevated temperature at least 1 mol. of the alcohol with each mol. of acid in the presence of an acidic cation exchange resin.  The molar ratio of alcohol to acid is preferably between 4 : 1 and 12 : 1.  The reaction is preferably carried out at a temperature of 100 DEG  to 200 DEG  C. Preferably from 1 to 10 per cent by weight of exchange resin is used based on the total weight of the reactants.  The exchange resin may contain sulphonic, carboxylic, phenolic or phosphoric polar groups, specified examples being those of the sulphonated coal, sulphonated phenol-formaldehyde or sulphonated polystyrene types.  Between 10 and 50 per cent by weight (based on weight of total reactants) of an inert water-immiscible solvent may be present during the reaction. Solvents boiling between 100 DEG  and 200 DEG  C. are preferred, those specified being n-octane, 2 : 2 : 4-trimethylpentane, n - decane, toluene, xylene, ethylbenzene, cumene, para-cymene, trichloroethylene and tetrachloroethylene. The di- and tri-hydric alcohol reactants preferably contain from 2 to 8 carbon atoms, those specified being ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, propylene glycol, dipropylene glycol, trimethylene glycol, a -butylene glycol and glycerol.  Specified monocarboxylic acids are acetic, propionic, butyric, 2-ethylhexanoic, lauric, palmitic, stearic, oleic, benzoic, toluic, phenylacetic, 2 : 4-dichlorophenoxyacetic and 2 : 4 : 5-trichlorophenoxyacetic acids. The examples describe the preparation of diethylene glycol monolaurate, diethylene glycol monooleate, diethylene glycol monostearate, diethylene glycol mono-(2 : 4 : 5-trichlorophenoxyacetate) and diethylene glycol monobenzoate. Diethylene glycol dilaurate is formed as a by-product.
Patent GB-916055-A (GB)
Title: Improvements in or relating to high-speed angle handpieces for dental purposes
IPC: A61C1/05
Filed: 1960-09-06
Abstract: 916,055. Dental handpieces. KALTENBACH, A., and HOFFMEISTER, E. Sept. 6, 1960 [Sept. 7, 1959], No. 30707/60. Class 81 (2). A high-speed angle handpiece with an air turbine in the head has an outlet or outlets through the rear of the head shielded by a cap defining an annular gap which is open radially outwards or an annular passage with openings directed outwards parallel to the axis of the head, compressed air from the outlet (S) being expanded in the gap or passage before being discharged from the head. As shown, Fig. 1, a cap 12 is formed integrally with the rear wall 6 of the handpiece head 1. Air passing from the bearing 5 into an annular chamber 10 and through outlets 11 expands in an annular gap 13 between the cap and the wall 6 before being directed radially outwards. A gap 14 between the shaft 3 and the cap is kept to a minimum so that little air can issue from a hole 15 for inserting a tool ejector. In an alternative embodiment, Fig. 5, air passes from the outlets 11 to an annular chamber 18 and flows out through arcuate slots 17 offset from the holes 11 to allow time for expansion of the air before discharge. The wall 6 and cap 12 may be formed separately and the wall 6 may be permanently secured to the head 1 or screwed therein. Air is discharged from the front bearing 4 through an annular passage 20. Water is supplied through a pipe 22 to an annular chamber 21 and discharged on to the tool end or the treatment zone from one or more holes (not shown) inclined to the axis of the head 1.
Patent GB-392532-A (GB)
Title: Improvements in magnetic separators for minerals and the like
IPC: B03C1/14
Filed: 1931-11-06
Abstract: 392,532. Magnetic separators. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Exolon Co. ; Commercial Avenue, Blasdell, New York, U.S.A.) Nov. 6, 1931, No. 30843. [Class 72.] In a magnetic separator having a rotary attractor spaced from the polepiece of an electromagnet, the material to be treated being fed on to the topmost part of the rotary attractor, the polepiece is so positioned relatively to the attractor and to the feed means that there is produced in the region of the delivery end of the feed means a magnetic field converging in a direction or having a component of convergence opposite to the movement of the grain stream which retards the movement of the magnetic particles before they enter the gap between the attractor and the polepiece. The materials are fed down a slide 16, Fig. 1, on to the rotary attractor R<4> and pass into the gap between the part R<4> and the parabolic face of the polepiece 3<1>. A further polepiece 6<1> with an adjustable extension 40 may be mounted as shown. The component A of the magnetic field retards the more magnetic particles of the stream and the component B forces such particles closer to the surface of the shoot 16. In a modification, attractors R<1> .. R<6>, Fig. 4, are mounted between polepieces 1<1>, 2<1>, 31 and 4<1>.. 9<1> mounted on cores 4 .. 9 and supported on parts 1, 2, 3. The cores 4, 7 are connected by a keeper 13. The material is fed to the first pair of attractors R<1>, R<4> by shoots 16, 19. The strongly magnetic material passes out by shoot 22, the other material passing by shoot 24 and shoots 17, 20 to the second pair of attractors R<2>, R5, the feebly magnetic material passing on to the third pair of attractors R<3>, R<6>, where the final separation is made.
Patent GB-1278866-A (GB)
Title: An improved motor vehicle, more particularly a passenger vehicle
IPC: B60K5/00
Filed: 1970-06-25
Abstract: 1278866 Motor vehicle driving arrangements DR-ING hCF PORSCHE KG 25 June 1970 [9 July 1969] 30887/70 Heading B7H A motor vehicle has its engine 3 disposed over the front non-driven axle 2, and the changespeed gear 7, differential 6, flywheel 9, and clutch 8 and other auxiliary parts, such as the oil and fuel tanks 20, 19 and spare wheel 18 disposed over the rear axle, the arrangement ensuring an even weight distribution. The engine, which has cooling means 4 and a distributer 16, is connected via drive shaft 12 to the gear 7, and the gear 7, differential 6 and clutch 8 are formed as one unit. The flywheel 9, starter 11 and generator 10 may also be formed as one unit, the generator and starter being connected to the battery 17.
Patent GB-1114797-A (GB)
Title: Improvements in or relating to navigation aiding talking radio beacons
Inventor: BYATT DENNIS WILLIAM GEORGE
IPC: G01S1/02
Filed: 1966-07-11
Abstract: 1,114,797. Radio navigation; aerials. MARCONI CO. Ltd. 11 May, 1967 [11 July, 1966], No. 30999/66. Headings H4A and H4D. A talking beacon comprises horizontally spaced aerial pairs A1, A2 and B1 B2 connected to respective feed points FA, FB through predetermined phase shifters PA, PB, an electric motor M continuously rotating the aerial system about a vertical axis, an in-phase feed arrangement K2 energizing the aerials with speech-modulated radio energy from a transmitter VT, the speech input arising from a record and associated pick-up SR, a differential feed arrangement K1 energizing the aerials with tone-modulated radio energy from a transmitter TT, and a servo transmitter SG linking movement of the record relative to its pick-up with aerial system rotation; the spacings of the pairs of aerials and the aerials of the pairs, the predetermined phase shifts and the linking are such that the in-phase feed provides a cardioid radiation pattern C, the differential feed affords a radiation pattern L1, L2 having a null direction N approximately corresponding to the maximum of the cardioid, and the speech transmitted at any given time gives direction N at that time. The transmitters VT, TT have a common master oscillator MO. The pre-recorded speech is conveniently statements of the reciprocal of azimuth in degrees with respect to true north. At the receiver the bearing of the beacon is given by the statement when the tone disappears. Inherent protection against 180 degrees ambiguity is afforded since the second null, at 180 degrees to null N, of pattern L1, L2 coincides with the null of cardioid C.
Patent GB-350362-A (GB)
Title: Improvements in surgical pessaries
IPC: A61F6/08
Filed: 1930-10-16
Abstract: 350,362. Surgical pessaries. LEONHARDT, W., 9, Fiirstengarten, and MÍLLER, H., 7, Dr. Unruh Strasse, both in Wismar, Mecklenburg, Germany. Oct. 16, 1930, No. 31007. [Class 81 (ii).] A surgical pessary comprises an air cushion a provided with an inflation tube d and formed with a dome-shaped cap g, apertured at h, to receive a paste-like medicament. The base of the cushion a is reinforced by an annular collar e from which a conical rim f extends. The tube d may be tied in a knot to confine the air in the cushion.
Patent GB-340644-A (GB)
Title: Improvements relating to the aeration of fermenting liquids
IPC: C12M1/04
Filed: 1929-10-12
Abstract: 340,644. Aerating liquids. STICH, E., 33, Werderstrasse, Mannheim, Germany. Oct. 12, 1929, No. 31071. [Classes 14 (i) and 14 (ii).] In apparatus for fermenting liquids containing a fermentable sugar, the action of the yeast and the formation of alcohol are increased whilst the power and time necessary are decreased by aerating the liquor with finely divided air currents obtained by use of diaphragm plates such as are used in electrolytic cells, having pore diameters between 0-16 and 6 thousandths of a millimetre. To diminish resistance, tendency to clog and risk of infection, the air preferably passes first through pores of the upper, and then through pores of the lower limit, as in the compound plate h<1>, h<2>, Fig. 3. The fine air bubbles create a rapidly fermenting foam after which the air is supplied intermittently in small amounts only. To encourage foam formation and remove carbonic acid gas glycosid and saponin may be added when the liquor tends to settle. In the continuous, vacuum-operated process shown in Fig. 1 the vat is divided into a series of separate tanks g<1>, g<2> &c. and air is drawn in from corresponding compartments c<1>, c<2> &c. Compound diaphragm plates h<1> h<2> form the false bottom of the vat and liquor passing through the plates is drained off through a stand-pipe d to a vessel e to be drawn back when desired into one of the tanks through a pipe e<2>. The tanks may be filled through valves b<11> &c. and they may be selectively put into communication through valves l<11> &c. with a vacuum vessel v. The tanks can also be interconnected by valves a<11>. In operation, after one to one and three-quarter hours, when the liquor in g<1> is sufficiently fermented, valve l<11> is closed, all and l<12> opened, thereby drawing the contents of tank g<1> into tank g<2>. Fresh liquor and ferment is added to g<1> and the addition quantity is passed through successive tanks, finally reaching g4, which tank is periodically emptied through the pipe s. The size of the tanks is so arranged that the development of ferment in the added liquor takes place in equal intervals of time and the process is continuous. The air compartments are connected by separate valves l<2> with a chamber either at atmospheric, or a higher pressure.
Patent GB-484717-A (GB)
Title: Improvements in and relating to guards for drills and other rotating apparatus
IPC: F16P1/04
Filed: 1936-11-13
Abstract: 484,717. Machinery guards. GEMMELL, A., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. Nov. 13, 1936, No. 31099. [Class 80 (iv)] Consists in a guard, for drills and other rotating parts, which covers apertures and projecting parts in the drill spindle &c. and, itself, presents a smooth exterior. A drill spindle 1 is shown carrying an adapter 4 to receive a chuck spindle 5, the end of the adapter projecting through an aperture 2. The guard device comprises two telescopic sleeves 7, 8. The sleeve 7 is fitted over the spindle 1 and retained thereon by a groove 3 in the spindle being engaged by spring-pressed balls 12 located in a flange 10 separating the thick lower part of the sleeve from the thinner upper part. A cap 13 covers the orifices 11 containing the balls. The sleeve 8 telescopes over the sleeve 7 and has a flange 9 and spring - pressed balls 15 adapted to engage a groove 16 in the sleeve 7. The aperture 2 is permanently covered, and access to the chuck may be obtained by raising the sleeve 8 which may be returned to its normal position (1) by a spring between the flanges 9, 10, (2) by the balls 15 engaging helical grooves on sleeve 7 or (3) by gravity.
Patent GB-228308-A (GB)
Title: Improved construction of garment hanger
IPC: A47B61/02
Filed: 1923-12-11
Abstract: 228,308. Burch, J. B. Dec. 11, 1923. Garment racks. - In a garment hanger of the kind comprising a back plate B carrying parallel undercut strips A forming tracks, the slide C carries a rod D between its downwardly turned ends C', and its travel is limited by one or more bars E secured across the strips A.
Patent GB-618106-A (GB)
Title: Improvements relating to targets, gliders or other objects towed through the air
IPC: F41J9/10
Filed: 1946-10-19
Abstract: 618,106. Glider release mechanism. LINES BROS., Ltd., and SMITH, S. O. Oct. 19, 1946, No. 31156. [Class 4] The towing cable couplings (not shown) of an aerial glider, target or other object are connected to and releasable by Bowden control cables 15 actuated on landing by ground contact arm 1 mounted on plate 4, pivoted at 5 and urged clockwise against stop 8 by spring 7. Cables 15 are connected to the closed end of a U-shaped fitting 14 which is slotted at 17 to engage guide pin 18 mounted on side plates 6 and is pivoted to link 11 by pin 13 slidable in side plate slots 16. Lever 11 is urged anticlockwise by spring 30 and when arm 1 is in contact with the ground occupies the position shown in Fig. 4. When the glider becomes airborne, lever 4 is rotated clockwise by spring 7, forcing lever 11 into the position shown in Fig. 1, and on landing lever 4, rotated anticlockwise by ground contact arm 1 pulls lever 11 and cables 15 downwards to release the towing cable. Time delay device 22, comprising a lost motion link 21 connected to a rod 34 provided at its upper end with rack 49 engaging gear train 48, is fitted to prevent premature cable release during a bumpy take-off. The lower end of arm 1 may carry a plate or a float (not shown) to cause rotation when brought in contact with water.
Patent GB-1116302-A (GB)
Title: A method for the heat treatment of metal bands and a plant for carrying out such method
IPC: C21D9/68
Filed: 1965-07-22
Abstract: <PICT:1116302/C6-C7/1> Aluminium or magnesium metal alloy bands are heat-treated by reeling each band 2 into an oven 4, bringing to the appropriate treatment temperature whilst in reel form 5, and chilling at a predetermined rate as it leaves the oven during unwinding from the reel e.g. by cold dry or damp air and/or jets of water.  The oven may have a heating-up zone 13 provided with burners 11, 12, a compensating zone 18 provided with slotted gas or air jets 17, and a heat-retaining zone for the reel 5.  Instead of hot combustion gases, heating may be effected with electrically-heated air or inductively. Prior to reeling into the oven, the band, unwound from an external reel, may be passed through a draw-off and retaining device, then through apparatus for regulating the draft of the band to subject the cold portion thereof to a higher tension than that of the hot portion.
Patent GB-703997-A (GB)
Title: Improvements relating to power-operated screw presses
IPC: B30B1/22
Filed: 1950-12-22
Abstract: 703,997. Machinery safety devices. BOULTON, Ltd., W., and BOULTON, J. Nov. 15, 1951 [Dec. 22, 1950], No. 31199/50. Class 80 (4) A power driven screw press is provided with an operating handle and an additional control lever arranged so that both hands of an operator must be employed when the die descends. The press screw 16 carries a friction wheel 15 driven in one or other direction by discs 13, 14 on a shaft which is axially moved to engage the discs by an arm 19 of a bell crank. The bell crank is pivoted at 21 and is connected to a handle (not shown). The other arm 20 of the bell crank carries a bracket to which is pivoted a stop member 23, linked to the additional control lever 27, and a weighted trip member 29 carrying a roller engaged by the wheel, 15. Normally the lever 27 is horizontal and the member 29 is locked in a vertical position by the member 23 which engages a recess therein. With the parts in this position, should the arm 19 be operated to lower the die, wheel 15 commences to descend and presses against the member 29 to rock the bell crank, thereby disengaging and temporarily reversing the drive. When, however, the lever 27 is held depressed while the arm 19 is operated, the trip member 29 is deflected as shown and the descent is unimpeded. A second recess is provided in the member so that should the lever 27 be released before the die nears the end of its travel the member 29 is again locked and the drive disengaged. Specification 651,119 is referred to.