baber/WOPTO huggingface dataset:
Patent GB-811519-A (GB)
Title: Improvements in or relating to the production of hydroquinone
Inventor: KENDALL JOHN DAVID
IPC: B01J39/00
Filed: 1956-06-29
Abstract: A process for the purification of aqueous hydroquinone liquors containing metal ions comprises subjecting the hydroquinone liquor to treatment with a cation exchange resin, e.g. of the sulphonated polystyrene resin type.  The liquors may optionally be treated with activated carbon before treatment with the ion exchange resin.  The hydroquinone liquors employed as starting material may be obtained by reducing aqueous quinone solutions with iron, the quinone being obtained by reacting aniline with sulphuric acid and manganese dioxide.  The products are employed in photographic developer compositions (see Group XX).
Patent GB-531143-A (GB)
Title: Improvements in fire-arms using separate propelling charges
IPC: F41A13/04
Filed: 1939-07-13
Abstract: 531,143. Guns. RENNY, Ltd., J. (Claudel, C. H.). July 13, 1939, No. 20400. [Class 92 (ii)] To reduce the temperature of the gun gases and to lubricate the bore an adjustable chamber 5 adjacent the breech is fed with liquid or emulsion through a passage 11 and non-return valve 10. The liquid passes at each discharge into the chamber or bore by passages 8, 9 by the action of the gun gases entering the chamber through a passage 6. The volume of the chamber can be varied by an adjustable rod 7.
Patent GB-148497-A (GB)
Title: Improvements relating to charging apparatus for intermittently and continuously operating furnaces for the production of refractory or abrasive products
IPC: F27D99/00
Filed: 1920-07-10
Abstract: 148,497. Lecesne, A. V. Gowen-. April 3, 1919, [Convention date]. Calcining-furnaces; charging and discharging.- Relates to furnaces used in the manufacture of refractory or abrasive products from siliceous rocks, refractory clays, magnesia, dolomite, chrome iron, spinel, agglomerated powders of emery or corundum, and zirconium and cerium earths. The charging-apparatus, Fig. 5, comprises inner and outer cylinders 25, 22, spaced apart by stays 26, the intervening space 27 being filled with the material to be calcined in a crushed condition, and the inner cylinder 25 being filled with a crushed mixture of the material and fuel. Hinged doors 23 close the ends of the cylinders 22, 25, whilst the charging-device is filled, the doors then being opened, allowing the charge to drop into the furnace in the form of a core of material and fuel and a shell of material alone, which latter does not agglomerate during the burning operation, its loose state facilitating the discharge of the calcined mass in the form of a solid block. The furnace shown in Fig. 1 is mounted on trunnions 2, and comprises a cylindrical outer casing 1 with a refractory lining 5, shaped at the bottom to form an inverted conical well 4. Air for combustion, either hot or cold, is supplied under pressure through an annular passage 6 and radial ports 7. In operation, the well is filled with previously calcined material, and on this is laid a layer of fuel which is brought to incandescence before the charge is fed in. After the calcination is complete, the charge is cooled by continuing the air blast, and is discharged in a solid block by tilting the furnace. The continuously operated furnace shown in Fig. 3 comprises an outer casing of greater diameter at the upper part than at the lower, a lining 13 forming a chamber of the same diameter throughout, and an insulating filling 12 at the upper part. Air is supplied through ports 7, and the calcined material is broken up and discharged into a water seal by a rotating worm 18. The top of the shaft may be closed and the products of combustion may be drawn off through ports, similar to the ports 7, and passed through a recuperator in which the air for combustion is heated. After calcination the materials may be crushed, mixed with a binding agent, compressed into blocks, and baked. The material to be calcined is either crushed, or if in powder form it is mixed with a binder and then crushed; or the fuel and material may be crushed together, the mixture being compressed into small blocks which may be broken into small pieces.
Patent GB-204704-A (GB)
Abstract: 204,704. Gouvion, F. Sept. 27, 1922, [Convention date]. Fixed - chamber apparatus ; with several chambers ; controlling passage of air and gases for; with discharge by separate fluid.-In apparatus having two measuring - vessels a<1>, a<2>, of which one is being filled while the other is emptying, each vessel is connected with a chamber b<1> enclosing the overflow pipe c<1> by means of two apertures g, h formed in the separating partition f. one aperture g being very small, while the other aperture h is much larger and is adapted to be closed automatically by a valve k when the vessel is filled. The large aperture ensures a rapid passage of air to assist in discharging the other chamber. The small aperture allows the employment of a smaller collecting-chamber d for the overflow and a smaller return pipe e to the supply tank, and minimizes the pumping of liquid to be returned to the supply tank. Specification 192,390 is referred to.
Patent GB-869578-A (GB)
Title: Velocity indicator
Inventor: FOWELL EDWARD JOSEPH CHALKER
IPC: G01P3/42
Filed: 1958-06-26
Abstract: 869,578. Electric analogue calculating systems. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 26,1959 [June 26, 1958], No. 20586/58. Class 37. In apparatus for producing an output dependent on the velocity and direction of motion of a body relative to another body in which a signal generator, e.g. a pair of diffraction gratings in a light beam energizing a pair of photo-electric cells, actuated by the relative motion, produces two signals A, B of sine waveform in quadrature, the two signals are differentiated in individual differentiators 1, 2, Fig. 1, and the outputs of each is multiplied by the signal applied to the other to produce A dB/dt and B dA/dt, the outputs being added to give a measure of velocity. More detailed circuitry described with reference to Fig. 3 (not shown) includes valve differentia, tors in which feed-back is provided from the anode to the grid and the grid is held at vertical earth, and diode modulators for effecting the multiplication. In a modification dA/dt and dB/dt are multiplied only by the signs of A and B respectively. Such an arrangement may be combined with the control signal in a machinetool control servo loop to enhance stability.
Patent GB-926565-A (GB)
Title: Improvements in or relating to continuously-operating centrifuges
IPC: B04B7/04
Filed: 1959-06-16
Abstract: 926,565. Centrifugal strainer separators. ESCHER WYSS A.G. June 16, 1959 [June 20, 1958], No. 20646/59. Class 46. Solids spill freely radially from the right hand end of a rotating centrifugal drum 3, Fig. 2, into a fixed trough 4 which extends around the drum circumference at a short distance from it. The trough walls confine the solids laterally, (that is, in the axial direction of the drum), as the solids move along the trough in the direction of rotation of the drum (arrow, Fig. 1). Spiral formation of the trough permits solids discharge where shown. In other embodiments the trough has the following shapes in elevation: seven-eighths of a circle leading tangentially to a straight discharge portion; circular with one opening in the trough bottom; circular with two diametrically-opposed openings in the trough bottom. In a further embodiment two troughs in series are provided, the first (inner) one being seven-eighths of a circle joined by a short spiral portion to the outer one, also in the form of seven-eighths of a circle but of larger diameter. In this case the solids make nearly two revolutions before discharge. The trough is secured to the housing 2, Fig. 2, by a flange 7 having annular slots (not shown) for engaging stationary fixing bolts (not shown) so that the trough is angularly adjustable. The solids may be discharged on to a conveyer belt 8, Fig. 7, andbe retarded by air jetted at 9. Alternatively they may be discharged into a pipe with a nozzle entry by which air is also entrained to effect retardation. In a further embodiment the solids are discharged freely from the trough into a collecting chamber. Two annular troughs may adjoin one another in the form of a helix. It is stated that in a known form of centrifuge the solid matter, after it has left the drum, slides over a ring arranged coaxially with the drum and rotating at a lower peripheral speed than the drum, before it enters a stationary outlet, so that the solid matter is gradually retarded.
Patent GB-863700-A (GB)
Title: Improvements relating to adhesive tape
IPC: C09J7/20
Filed: 1959-06-17
Abstract: 863,700. Laminates. BROWN, T. A. July 2, 1959 [June 17, 1959], No. 20704/59. Class 140. To enable the cut end to be located, gummed tape is provided with a central narrow strip of paper, tin foil or other material. The paper may bear printed material, which may show through the tape when the latter is transparent.
Patent GB-497108-A (GB)
Title: Improvements in auxiliary electrodes for electric discharge devices
IPC: H01J61/54
Filed: 1937-07-27
Abstract: 497,108. Discharge apparatus. GENERAL ELECTRIC CO., Ltd., NELSON, E. H., and PIRANI, M. July 27, 1937, No. 20743. Drawings to Specification. [Class 39 (i)] A starting electrode for a discharge device comprises a mass of material of high resistivity that is having a resistivity of not less than 1000 ohms per centimetre cube connected to a distant electride by a good conductor which may be either inside or outside the envelope of the valve. To prevent pitting part of the electrode where the discharge impinges may be coated with a better conductor. The electrode may be in the form of a ball which lies adjacent a main electrode and is connected to the distant electrode by a metal wire external to the valve, the stalk and adjacent half of the ball being coated with a vitreous material having the same thermal expansion as the envelope through which the stalk is sealed by fusing. Details of suitable materials for the high resistance body are given in the Specification and in Specification 497,107, [Group V]. Specification 388,302 also is referred to.
Patent GB-205909-A (GB)
Title: Improvements in or relating to tipping-vehicles
IPC: B60P1/16
Filed: 1922-07-28
Abstract: 205,909. Alley, S. E., and Hutt, A. C. July 28, 1922. Tipping-wagons. - In a vehicle the body of which can be tipped in more than one direction, the tipping is effected by a piston working in a cylinder and connected to the body by a link which is universally jointed at both ends, the cylinder being rigidly mounted on the chassis. The body 10, Fig. 1, is mounted to allow of side or end tipping, being supported at the front on forks 12 bearing on cylindrical bearers 13 and at the back by double forks 14 bearing on the cylindrical ends 15 of cruciform supporting members. Suitable clamps are released according to the direction of tipping desired. A cylinder 21 is secured by a flange 23 to the chassis 11 and contains a piston 25 connected to the body by a ball-ended rod 29 and blocks 27, 31. Fluid under pressure is admitted below the piston through a conduit 34. More than one piston and cylinder may be provided. The body 10 may be mounted on carriages 38, Fig. 4, running on a ring 36 on the chassis. A rod 39 provides a tipping axis for the body in any direction to which it is turned. The cylinder 21 is arranged centrally of the ring 36.
Patent GB-636262-A (GB)
Title: Improvements in locomotive boilers
IPC: F22B13/14
Filed: 1947-07-31
Abstract: 636,262. Water chambers in steam boiler fireboxes. LOCOMOTIVE FIREBOX CO. July 31, 1947, No. 20767. Convention date, April 7,1941. [Class 123(ii)] In a locomotive boiler in which the firebox 11 is fitted with one or more thermic syphons 24, the latter each extending between, for example, the crown and front throat sheets 12, 16 of the firebox and being provided with a flanged elongated outlet opening 31, said openings 31 and the boiler wrapper or roof sheet 17 are tied together by spaced rods 39. The upper end of each rod 39 is secured to the wrapper sheet 17, preferably by a universal connection 41, and the lower end is provided with a clevis member 37 adapted to straddle and be pivotally jointed by means of a pin 38 to a bridge plate 35 which is disposed transversely across the syphon opening 31 and welded thereto along its side edges 36. The bridge plate 35 may be replaced by a member having a pair of spaced legs which fit between and are riveted to the insides of the respective side walls 25 of the syphon. The flange 27 of the opening 31 may be connected to the wrapper sheet 17 by two longitudinal rows of staybolts 42 as shown.
Patent GB-886900-A (GB)
Title: Improvements in or relating to electric motors
IPC: H02K1/28
Filed: 1957-07-01
Abstract: 886,900. Electric motors. HANSEN, H. C. June 16, 1958 [July 1, 1957], No. 20770/57. Class 35. [Also in Groups XXII, XXIII and XXIV] The rotor of an electric motor has a lamination stack 17 mounted on a cylindrical shaft 12 by a coil spring 10, Fig. 3, which is bonded or soldered, not shown, to the stack and is clamped to an intermediate part of the shaft by its own tension due to being wound to have a smaller interior diameter than the exterior diameter of the shaft. The invention is applicable to sound-reproducing equipment and enables the use of thin polished shafts required to be unstressed by the assembly procedure. The rotor is of the squirrel-cage type comprising copper rods 17e riveted and soldered to copper discs 17b, 17c, terminating iron laminations 17a. The shaft 12 has a gear-wheel 13, Fig. 1, providing different driving diameters and is supported by carrier plates 54 screwed to the stator field which comprises a core 40 and two further cores 46 carrying energizing coils 44 and having ends which engage projections 48 of the core 40. To assemble the wound spring the latter is placed in the end 27 of a bore 26 in a holder 22 and the shaft 12 is placed in a bore 18 in a stationary member 76. The holder is held axially of the shaft and is turned anticlockwise so that the spring ends engage abutments 20, 27a and expand the spring; the spring may then be pushed along the shaft until the latter abuts the end of the holder bore 26, whereupon the holder is released and the spring clamps itself to the shaft.
Patent GB-1209114-A (GB)
Title: Flow control valves
IPC: F16K5/12
Filed: 1968-05-02
Abstract: 1,209,114. Valves. ITT INDUSTRIES Inc. 2 May, 1968 [4 May, 1967], No. 20881/63. Heading F2V. A flow control valve, comprises a spheroidal apertured plate 16 which is disposed at the inlet 52 to the valve chamber, and a valve member 14 which is rotatable in the chamber, is in the form of a segment and has a configuration such that with the valve in its closed state, the member is contiguous to the entire periphery of the aperture 19 in the plate 16 so forming a metal-tometal seal. The aperture 19 is defined, in part, by spheroidal wings 58 and 59, and the plate itself can be formed with integral teeth and provided with a meshing worm gear whereby the plate may be rotated about an axis parallel to the direction of flow (Fig. 1, not shown), so permitting the valve flow characteristics to be varied. Alternatively, the aperture may be constituted by a plurality of ports or slots (Figs. 5 and 6, not shown).
Patent GB-1090196-A (GB)
Title: Temperature-compensated voltage discriminator with a high input resistance
IPC: H03K3/2893
Filed: 1966-05-11
Abstract: 1,090,196. Transistor switching circuits. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. May 11, 1966 [May 12, 1965], No. 20894/66. Heading H3T. A temperature-compensated circuit, responsive to a control voltage exceeding a threshold value, and having a high input resistance, comprises two reciprocally coupled transistors T1, T2, the control voltage being applied to the base of transistor T1 through a Zener diode D3 connected in reverse with respect to the control voltage and providing the temperature compensation. In the embodiment shown, an A.C. input is rectified and doubled by circuit D1, D2, C1, C2, and when it exceeds a first threshold value, Zener diode D3 is caused to conduct and the state of bi-stable circuit T1, T2 is changed to transistor T1 conductive; T2 blocked. At the same time, diode D4 becomes non-conductive and diode D5 becomes conductive. The circuit reverts to its original state when the input falls below a second, lower threshold. Diodes D4, D5 and resistor R6 may be omitted (Fig. 2, not shown), but their inclusion results in an increased operating hysteresis.
Patent GB-812524-A (GB)
Title: Beverage vending machine
Inventor: JOSCHKO RAYMOND CLARENCE
IPC: G07F13/06
Filed: 1957-07-02
Abstract: 812,524. Coin-freed beverage vending apparatus. APCO Inc. July 2, 1957, No. 20912/57. Class 27 A beverage vending machine comprises a source of carbonated water 33, a source of non-carbonated or plain water 30, and one of more sources 19 of flavouring ingredient and by operation of one or other of a pair of selector switches a measured quantity of a flavour is dispensed together with either a full measured quantity of carbonated water only or, if the flavour needs only sufficient carbonation to give it a tang without effervescence, a relatively large quantity of plain water plus a relatively small quantity of carbonated water. Plain water is forced by a pump 31 to a solenoid-operated dispensing valve 36 and also through a carbonator 29 and pipe 33 to a similar dispensing valve 34. A tank 22 of compressed carbon dioxide is connected both to the carbonator and to the syrup containers so that the carbon dioxide acts also as a preservative for the flavours and forces them to their solenoidoperated dispensing valves 27. A cooling tank 26 and refrigerating unit 28 are provided and, also, on the door of the cabinet 1, coin-freed mechanism 10 and a cupdispenser 13 which is operated by an electric motor 17. On inserting a coin, a switch is momentarily closed and energizes a first relay which prepares the circuits of second and third relays energized separately by operation of one or other of the selector switches. If a fully carbonated drink is required, the chosen selector switch energizes the second relay and one of the contacts closed by it starts the motor 17 to dispense a cup and also rotate a shaft carrying cams that control switches to govern the period of running of the motor and the "open" period of the dispensing valves 27 and 34 for flavour and carbonated water. If a drink with mostly plain water is desired, the operation of the other selector switch energizes the third relay. A cup and flavour are delivered as before but for the major part of the cycle the carbonated water valve is cut out of circuit by an opened contact in the energized third relay and the valve 36 for plain water only dispenses until towards the end of the cycle, when the cam control de-energizes the relay, the valve 34 dispenses carbonated water for a short time. The second and third relays each have a normally-closed switch which, when the relay is energized, opens to cut out the other relay and ensure that a selected type of drink only can be dispensed during a single operation of the machine.
Patent GB-516324-A (GB)
Title: Improvements relating to fuses for the protection of electric circuits
IPC: H01H85/055
Filed: 1938-07-15
Abstract: 516,324. Fusible cut-outs. CALLENDER'S CABLE & CONSTRUCTION CO., Ltd., BRAZIER, L. G., and METCALF, A. W. July 15, 1938, No. 21002. [Class 38 (i)] Two groups of fusible elements are arranged in parallel, one group having high rupturing capacity and the other possesing discrimination, that is, the capability of rupturing under short circuit to forestall a fuse in series with higher rating. A barrel 1 has a longitudinally recessed bore containing glass tubes 4 two of which contain a silver wire 6 having a waist 7 and globule 8 and the other two enclose an element composed of bowed-wires 9 connected together at their ends and in the middle by globules 11, 10. All the elements are brought out to engage the terminal cap 2 and are connected together by solder 12. Specifications 499,999, and 501,684, are referred to.
Patent GB-1087008-A (GB)
Title: Aryloxy octadienes and polyepoxides prepared therefrom
IPC: C07D303/24
Filed: 1966-05-12
Abstract: A hard resinous material is obtained by reacting a polyepoxide of one of the formulae <FORM:1087008/C3/1> <FORM:1087008/C3/2> wherein R is an n-valent aryl group, n is 1 or 2, a and b are each 0 or 1, the sum of a+b being 0 or 1 (see Division C2 for preparation); with an epoxy resin curing or cross-linking agent at a temperature from 15 DEG  to 200 DEG  C.  Conventional curing agents are specified.  Examples are given for the preparation of these resins.ALSO:The invention comprises (i) a 1-aryloxy-2,7-octadiene of the formula R[-O-CH2-CH = CH-CH2-CH2-CH2-CH2-CH = CH2]n wherein R is an n-valent aryl group and n is 1 or 2; (ii) a 1-aryloxy-2,3,7,8-diepoxyoctane of the formula <FORM:1087008/C2/1> (iii) 3 - (21 - hydroxyphenyl) - 1,7 - octadiene and 2 - (21 - hydroxyphenyl) - 3,7 - octadiene; and (iv) a triepoxide of the formula <FORM:1087008/C2/2> wherein a and b are each 0 or 1, the sum of a + b is 0 or 1.  The compound (i) may be obtained by reacting a mono-or dinuclear phenol having one or two phenolic hydroxy groups per molecule with 1,3-butadiene or isoprene in the presence of a Pd or Pt compound catalyst at a temperature from -20 DEG  to 150 DEG  C.  The compound (ii) may be obtained by reacting the compound (i) with at least 1 mole of an epoxidizing agent per equivalent of ethylenic unsaturation in compound (i).  The compounds (iii) may be obtained by subjecting the compound (i) to rearrangement reactions.  The compound (iv) may be obtained by reacting one of the compounds (iii) or 1-(21- or 41-hydroxyphenyl)-2,7-octadiene with epichlorohydrin to produce the glycidyl ether of the hydroxyphenyloctadiene and subsequently epoxidizing the ethylenic unsaturation present in the compound with at least one mole of epoxidizing agent per equivalent of ethylenic unsaturation. Examples are given for the production of the compounds. The polyepoxide compounds (ii) and (iv) may be converted to hard thermoset resinous products (see Division C3).  A mixture of 1-(4- and 2-hydroxyphenyl)2,7-octadienes is obtained by heating 1-phenoxy2,7-octadiene in the presence of p -allyl palladium chloride triphenylphosphine complex and sodium phenate.
Patent GB-221631-A (GB)
Title: An elastic suspender for socks and hosiery in general
IPC: A41F11/16
Filed: 1923-08-20
Abstract: 221,631. Field, A. J. Wuertz-. Aug. 20, 1923. Sock suspenders. -A suspender of the leg-encircling type comprises a strip 5 of elastic material capable of being passed twice round the leg. and having at each end a button and loop suspender grip 3. A buckle or slide 4 serves for adjustment. Specifications 11942/10, 12323/12, 150,515 and 196,531 are referred to.