baber/WOPTO huggingface dataset:
Patent GB-793766-A (GB)
Title: Preparation of alkylene glycols
Inventor: PYE DAVID JOHNSTON
IPC: C07C29/10
Filed: 1956-10-12
Abstract: Glycols are obtained from C2-C4 alkylene oxides (having the oxygen atom attached to adjacent carbon atoms) by passing the vapour with more than an equimolar proportion of water over a catalyst comprising a normal calcium phosphate below 500 DEG  C.  Preferably more than 6 equivalents of water are used, and desirably more than 17 if the reactor has a stationary bed of catalyst.  The reaction temperature may be 200-400 DEG  C., e.g. 275-325 DEG  C. the contact time being 1-25 seconds for a temperature of 250-350 DEG  C. when the mixture is passed through a fluid bed of catalyst.  The latter should consist preponderantly of tricalcium phosphate, promoted if desired with copper phosphate.  A suitable catalyst is composed of Ca3(PO4)2 and CaHPO4 with a mol. ratio CaO/P2O5 of 2.7-2.8 and containing 0.1-1 per cent of copper.  The vapour issuing from the catalyst is condensed to give a strong aqueous solution of glycol containing very little polyglycols.  Examples are given of the production of ethylene glycol and it is stated that 1:2-propylene glycol and 1:2- and 2:3-butylene glycols may also be obtained from the corresponding alkylene oxides.ALSO:A catalyst for the vapour phase hydration of alkylene oxides to glycols consists essentially of a normal calcium phosphate, promoted if desired with copper.  A suitable catalyst is composed of Ca3(PO4)2 and CaHPO4 with a mol. ratio CaO/P2O4 of 2.7-2.8 and containing 0.1-1.0 per cent of copper, e.g. as phosphate.  Such a mixture can be obtained by adding phosphoric acid and ammonia (or other alkali) to a solution of calcium and copper chlorides, separating, washing and drying the precipitate.  It may if desired be mixed in powdered or granular form with a lubricant, such as graphite, and pressed into tablets, the lubricant then being removed by oxidation.  The catalyst may also be made by grinding together an aqueous mixture of calcium and copper phosphates and drying the resultant mixture.
Patent GB-312604-A (GB)
Abstract: 312,604. Du Pont de Nemours & Co., E. I., (Assignees of Lawson, W. F.). May 2R, 1928, [Convention date]. Plastic compositions containing cellulose esters, ethers have as plasticizer unsymmetrical diaryl ethanes, such as diphenyl ethane, ditolyl ethane, dixylyl-ethane, dinitro diphenyl ethane and contain a solvent such as a mixture of acetone and diacetone alcohol or ethyl acetate and butyl acetate. In an example pyroxylin, 10 parts by weight, is mixed with unsymmetrical diphenyl ethane, 3.6 parts, and a mixture of 90 per cent ethyl acetate and 10 per cent butyl acetate. 86.4 parts. The compositions produce clear, flexible water-resistant films, and may be used as coating compositions as well as in plastics generally.
Patent GB-1001936-A (GB)
Title: Improvements in and relating to a manoeuvring system for marine engine installationshaving a clutch between the engine and the propeller shaft
IPC: F01L13/00
Filed: 1964-08-04
Abstract: 1,001,936. Regulating. BURMEISTER & WAINS MASKIN-OG SKIBSBYGGERI A.S. Aug. 4, 1964 [July 23, 1962], No. 31268/64. Heading F1B. [Also in Divisions F2 and G3] A clutch and engine speed control for a marine vessel comprises a manual control lever 19 which supplies pressure liquid to, or acts through a fluid column on a piston 31 to move the latter up for clutch disengagement and down to increase engine speed. Downward movement of the piston 31 and an integral rod 32 acts directly on the engine speed governor spindle 33, upward movement of which is limited by a manually adjustable stop 73. Upward movement of the piston 31 moves a valve spool 34 up to cut the supply of pressure liquid from a main supply line 21 through lines 40, 62, 64 to a clutch engaging fluid motor 65, whereupon the motor 65 is exhausted at 68 and the clutch disengaged by a spring 69. The valve spool 34 is held in the clutch engaged or disengaged position by a spring pressed detent 60. Clockwise as anticlockwise movement of the lever 19 rotates a valve 17 to selectively supply pressure liquid to lines 26, 27 for clutch disengagement and increased engine speed respectively and also rotates a cam 15 which acts through a rod 13 to rock a lever 12 and adjust the compression of a spring 9 acting on a pressure regulator valve 22. The cam is shaped so that on anticlockwise movement it causes a progressive increase in the liquid pressure applied to the line 27 for a progressive increase in engine speed, whilst clockwise movement produces an initial large increase in liquid pressure which thereafter remains constant. As shown the pressure liquid supplied to the lines 26, 27 acts on a spring governed servo-control piston 46 to move the latter up or down, which movement acts through a link 50 to move a valve spool 41 down or up whereupon pressure liquid from the line 40 is supplied through ducts 37, 36 below or above the piston 31 to move the latter up or down. Since the link 50 is pivoted to the rod 32 movement of the latter moves the valve spool 41 and the movement of the piston 31 and rod 32 continues until the valve spool 41 is returned to the position shown. In Figs. 2 and 3 (not shown) the engine speed control and clutch disengaging pressures supplied from the manual control valve act directly above and below the operating piston, the rod of which is integral with the clutch disengaging valve spool. The detent 60 is also replaced by a magnetic detent. Specification 969,426 is referred to.
Patent GB-209246-A (GB)
Title: An improved chimney or flue cap for separating and collecting dirt from smoke or gases
IPC: F23L17/02
Filed: 1922-11-16
Abstract: 209,246. Parker, A. Nov. 16, 1922. Chimney tops.-Relates to chimney tops of the kind in which a funnelshaped dirt-collecting member d is secured within a conical outer casing a<2> provided with a vertical outlet tube c depending into the member d. According to the invention, the space f between the parts a<2>, d is of such size that the gases in their upward travel are maintained at a constant pressure or rate of flow. The outlet tube c is arranged to provide between itself and the upper wall a<5> of the outer casing a relatively large expansion space from which the gases are deflected downwardly into the member d and escape up the tube c. In the modification shown in Fig. 4, the lower edge of the tube c carries a projecting ring of vertical channels h having V-shaped upper ends h<2> the adjacent sides of which form apices i at the divisions between the channels. The channels h may be tubular instead of open as shown. Specification 191,251 is referred to.
Patent GB-681192-A (GB)
Title: An improved pipe bender
IPC: B21D7/022
Filed: 1949-12-06
Abstract: 681,192. Angular bending. GIBSON, J. W. Dec. 6, 1950 [Dec. 6, 1949], No. 31279/49. Class 83 (iv). In a sweep-arm bender a grooved former 1 is keyed to a stationery shaft 2 on which is pivoted a lever 6 carrying an abutment roll 7 engaging a grooved pressure plate 8. For holding an open seam tube in position during bending spring-pressed pins 10 engaging the seam are mounted on the plate 8 or the former.
Patent GB-1019514-A (GB)
Title: Aqueous compositions containing lanolin oil
Filed: 1962-08-15
Abstract: A clear aqueous liquid shampoo composition comprises (1) a water-insoluble liquid lanolin fraction, (ii) as non-ionic surfactant a polyoxyethylene ether produced by condensation of lanolin alcohols with 16 mols ethylene oxide an (iii) a higher fatty acid alkanolamide; the ratio of (ii) to (i) and of (iii) to (i) to achieve a synergistic solubilizing effect is 1:1 to 3:1 and 0.5:1 to 7:1 respectively.  The composition may also contain (iv) a fatty acid soap and/or synthetic detergent other than (ii) or (iii) in an amount 5-30% by weight of the total composition. The lanolin oil (i) is conveniently predominant in lanolin esters; a typical oil is the liquid fraction obtained from wool grease. The non-ionic surfactant (ii) may be that marketed under the trade-mark "Nimcolan S." Constituent (iii) is preferably the diethanolamide of coconut fatty acid.  A suitable composition contains 1% lanolin fraction (i), 2-3% non-ionic surfactant (ii), 0.5-3% alkanolamide (iii) and 8-24% soap or detergent (iv) (all by wt.).  Triethanol-amine lauryl sulphate is the preferred additional soap/detergent (iv), others specified being sodium lauryl polyoxyethylene ether sulphate, triethanolamine dodecyl benzene sulphonate, sodium lauryl sulphate, potassium oleate and triethanolamine oleate. The composition (i), (ii), (iii), (iv) is preferably prepared by mixing the lanolin and the solubilizing agents (ii), (iii) on the one hand, an aqueous solution of the soap/detergent (iv) on the other, heating each to 75-80 DEG  C. and adding the oil mixture to the soap/detergent. Optional additives include perfumes (0.4% by wt.), colouring agents, dyes and preservatives, none being specified.  In one example propylene glycol is included.  The composition may be used as hair shampoo or hand lotion.
Patent GB-263783-A (GB)
Title: Improvements in or relating to electric seam welding machines
IPC: B23K11/06
Filed: 1926-12-11
Abstract: 263,783. Mack, R. Dec. 28, 1925, [Convention date]. Transformers. -- The upper arm of the secondary of a transformer for use in the continuous welding of the longitudinal seams of tubes, plates &c. has grooves 12 inclined in the direction of the welding path so as to guide the edges of the work 13 and overlap them before passing through the welding electrodes 4. Positivelv driven inclined feed rolls 8, 9 may be mounted in the grooves.
Patent GB-707056-A (GB)
Title: Improvements in or relating to extra high tension supply circuit arrangements for television receivers
Inventor: FEWINGS DAVID JOHN
IPC: H04N3/185
Filed: 1950-12-28
Abstract: 707,056. Rectifying; automatic voltage control systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Sept. 13, 1951 [Dec. 28, 1950], No. 31522/50. Classes 38 (2) and 38 (4) An E.H.T. producing circuit of the scanning line time base flyback type comprises a main valve 3 having a ringing inductance 4 in its anode circuit and having negative going voltage applied to a grid 2 thereof, an E H.T output lead OUT being fed from the anode 5 of the valve 3 through a rectifier 7. a capacity potentiometer 9, 10, a point on which potentiometer feeds the grid of an additional valve 13, a feed back circuit from the anode 14 of this additional valve to the grid 2 of the valve 3, a second rectifier 21 fed from a circuit coupled to the ringing inductance 4 and including a load resistor 24 for the second rectifier 21, one side of the load resistor being connected to the feed back circuit whilst the other side of the load resistor is connected to a point 30 of adjustable positive potential. Thus variations in the E.H.T. voltage are avoided, any tendency thereto being corrected by a change in the bias fed back over the circuit including the valves 13, 21 and the resistor 27 to the control grid of the main valve 3. Further, objectionable variations in picture line width with variations in picture brightness are substantially eliminated. The resistive potentiometer 31 forms the focus potentiometer and adjustment of the tapping point 30 gives manual control of the E.H.T. output. Specification 707,058 is referred to.
Patent GB-1345318-A (GB)
Title: Bissulphenamides which inhibit prevulcanisation
IPC: C08K5/44
Filed: 1972-07-05
Abstract: 1345318 Bis-sulphenamides RHONEPOULENC SA 5 July 1972 [7 July 1971] 31548/72 Heading C2C [Also in Division C3] The invention comprises compounds of the formula (RS) 2 N-R<SP>1</SP>, wherein each R represents a monovalent hydrocarbon radical containing no olefinic unsaturation, and R<SP>1</SP> is a monovalent hydrocarbon radical. They may be obtained by reacting an amine of formula R<SP>1</SP>NH 2  with a chlorosulphide of formula RSCl in the presence of an acid acceptor. Examples are given for the production of N,N-bis-(phenylthio) - cyclohexylamine and N,N - bis - (phenylthio)-methylamine. They are useful as prevulcanization inhibitors.
Patent GB-1029267-A (GB)
Title: Method and apparatus for coating flexible sheet materials
Inventor: BELAK STEVEN GEORGE
IPC: D06B15/08
Filed: 1963-08-09
Abstract: A composition for coating flexible sheet material, such as paper, comprises an animal, vegetable and/or mineral wax, such as a petroleum wax, with more than 3-5% and up to and including a predominate percentage by weight of a wax-compatible polymer which is very viscous (i.e. more viscous at the same temperature than a molten microcrystalline wax with a melting point between 60 DEG  and 82 DEG ). The polymer may be a high molecular weight polymer and/or copolymer or a resin or in particularly high molecular weight copolymers of ethylene and vinyl acetate.  An example is given of a composition containing 60% by weight of an adhesive petroleum microcrystalline-wax and 40% by weight of a resin comprising amorphous, high molecular weight copolymers of ethylene and vinyl acetate in the comonomer weight ratio of approx. 2:1; viscosities of the constituents and of the composition are given.ALSO:A composition for coating flexible sheet material such as paper comprises an animal vegetable and/or mineral wax, such as a petroleum wax, with more than 3-5% and up to and including a predominate percentage by weigh of a wax-compatible polymer which is very viscous (i.e. more viscous at the same temperature than a molten microcrystalline wax with a melting-point between 60 DEG  and 82 DEG  C.).  The polymer may be a high molecular weight polymer and/or copolymer or a resin or in particular high molecular weight co-weight polymer and/or copolymer or a resin or in particular high molecular weight copolymers of ethylene and vinyl acetate. An example is given of a composition containing 60% by weight of an adhesive petroleum microcrystalline-wax and 40% by weight of a resin comprising amorphous, high molecular weight of copolymers of ethylene and vinyl acetate in the comonomer weight ratio of approx. 2 : 1; viscosities of the constituents and of the composition are given.
Patent GB-1426601-A (GB)
Title: Plastics drum with removable cover and locking ring
IPC: B65D41/28
Filed: 1973-07-03
Abstract: 1426601 A container drum assembly having a cover G P G HOLDINGS Ltd 3 July 1973 [27 Nov 1972] 31616/73 Heading B8T A drum assembly comprising a plastics container 1 having a neck 2 with a bead 3 extending radially inwardly and projections 4 extending radially outwardly, is fitted with a cover 6 secured by a ring 13 and having a cap part 7 fitting within the bead 3, the cover 6 having a skirt 8 provided with segments 11 with flanges 12 projecting radially outwardly, such that the projections 4 of the container protrude into the recesses between the segments 11 of the skirt 8 of the cover 6, and a retaining locking ring 13 engaging alternately with the projection 4 and the flanges 12. The cap part 7 and the skirt 8 of the cover 6 maintain a 90 degree angle with the underside of the cover 6 and a gasket 10 fits into a groove 9.
Patent GB-831003-A (GB)
Title: Synergistic fluid energy reducing and classifying unit
IPC: B02C13/08
Filed: 1957-10-10
Abstract: 831,003. Grinding. MICROCYCLOMAT CO. Oct. 10, 1957 [Oct. 15, 1956], No. 31659/57. Class 59 A reducing and classifying unit for solid material comprises a reducing rotor 10 mounted in a housing 12 and a classifying rotor 31 mounted in a housing 32, air and material to be reduced being introduced downwardly and tangentially to the reducing chamber through an inlet 24, and air and reduced material passing upwardly at 29 from the reducing chamber to the classifying chamber from which fine material passes through an axial outlet duct 46 in the rotor 31 while oversize material to be reduced through a duct 61 to the reducing chamber. The inlet 24 is fed with material to be reduced through a metering closure 26 for a hopper 25 and with air through a duct 27 fitted with a regulating damper 28. The mill load preferably comprises about one part solids to about 6 to 12 parts air by volume. The rotor 10 comprises an assembly of rotor units 11 each having a slotted disc 18 provided with radial blades 19 which may have cutting edges. Each disc 18 is enclosed between a pair of discs 20, the discs 18, 20 being supported by bolts 22. The units 11 are mounted on a closed tube 16 surrounding the rotor shaft 15. The clearance between the rotor 10 and the housing 12 is of the order of 1 to 3. inches. The housing 12 is split so that the rotor 10 can be lifted out and turned end for end to provide for self-sharpening of the cutting edges where such are provided. The rotor 31 comprises an assembly of spaced slotted discs 44 each provided with radial blades 45, the inner edges of the discs 44, which are supported by bolts 47, defining the outlet duct 46. Supplementary air is supplied to the classification chamber through an adjustable inlet 43. Fine material is withdrawn through the duct 46 by means of fans 56 and discharged through ducts 60. The rotor 31 is rotated at a peripheral velocity to provide a centrifugal throw-out effect of about 1,000 to 2,000 g. Both rotors provide intro-blade vortex action on the circulating material and the material is also subject to high impact velocity in the rotor 10. The duct 61 is provided with a skimmer gate 33 which comprises the space between the wall of the housing 32 and the bevelled edge of an adjustable plate 34. The bottom of the housing 12 is provided with an adjustable opening 62 for withdrawing pieces of stone or other undesired material. The classifying unit is as described in Specifi cation 831,004. Specifications 789,274 and 795,079 also are referred to.
Patent GB-1492367-A (GB)
Title: Controlling carrier lifetimes in semiconductor devices
IPC: H01L27/092
Filed: 1976-07-29
Abstract: 1492367 Semi-conductor devices INTERNATIONAL BUSINESS MACHINES CORP 29 July 1976 [7 Aug 1975] 31671/76 Heading H1K Characteristics of a bipolar transistor 30, Fig. 5, or of a parasitic bipolar transistor in a semi-conductor device is modified by introduction of inert atoms of helium, argon, krypton, xenon or neon into the base or collecter region, to reduce minority carrier life time. Ion implanted region 20, Fig. 1, having impurity concentration in the range of 10<SP>11</SP>-10<SP>16</SP> atoms/ cm<SP>3</SP> and provided between IGFETS 10, 14 in the collected region 18 of a lateral parasitic bipolar transistor reduces the gain of the latter as it provides a carrier recombination region. The implanted region may additionally be provided in the base region 17, Fig. 2 (not shown), and it may extend across the base region so as also to lie underneath source and drain regions 12, 13, Fig. 3 (not shown), the implanted region reducing the gain of a vertical parasitic transistor present in the device. Implanted region 46, Fig. 5, in a collected region 38 of the bipolar transistor 30 is co-extensive with the base region and the implanted region increases the speed of operation of the transistor without significantly reducing its gain. A modified bipolar transistor, Fig. 4 (not shown), has the implanted region extending beyond the base region. Results of experiments investigating the effect of inert atoms concentration on the gain of bipolar transistors and on the life-time of minority carriers, and the effect of annealing temperature on diffusion of implanted inert atoms, are disclosed.
Patent GB-819082-A (GB)
Title: Packing for axles, shafts, rods, bearings and similar machine parts
IPC: F16J15/3204
Filed: 1956-10-18
Abstract: 819,082. Stuffing-box substitutes; pistons, packing. BERGER, A. Oct. 18, 1956 [Oct. 24, 1955], No. 31738/56. Classes 122 (1) and 122 (5). A packing for sealing axles, shafts, bearings, pistons and the.like comprises an elastic packing ring of trapezoidal section which is accommodated in an annular groove provided either in the axle or like member or a co-operating housing and is so dimensioned as to become distorted when fitted in position, the ring then lying in inclined position in the groove and making line contact at three positions with the adjacent parts. Fig. 3 shows a ring 1 with a conical bore of smaller inner diameter than the diameter d of the shaft to which it is to be fitted, so that when fitted it assumes an inclined position in the groove 5. Depending on the chosen combination of dimensions of ring and groove, the ring may either rotate with the shaft so that line-contact sealing takes place on the side walls of the groove at X, or the ring may be held within the groove by the friction of its contacting portions, the seal being effected by the inner edge of the ring at its point of contact with the shaft, or the dimensions may be such as to allow the ring to " float " rotationally. For shaft sealing in both axial directions, two mutually supporting rings may be provided as shown in Fig. 4 or the ring 2, Fig. 6, may have an inner face partly cylindrical and partly conical, to provide two shaft-contacting sealing edges when held in position in the groove 5b by a garter spring 8. In a further embodiment, Fig. 10, the ring 4 may be initially of dished form with parallel inner and outer cylindrical faces. In this embodiment, the groove 5d, of less width than the free depth of the ring, is formed in a ring member 6d detachable from the bearing housing. When used as a packing carried in grooves formed in a piston 7a, Fig. 8, the outer diameter of each ring 3 exceeds that of the bore d which is to be sealed so that distortion by compression forces the diagonally opposite edges of the ring into contact with the walls of the groove. A ball-bearing seal, Fig. 12, comprises a sealing ring 1 of similar form to that described with reference to Fig. 3 located in a groove formed between rings 6e, 6e<SP>1</SP> pressed into a recess in the outer race, the sealing lip contacting a recess formed in the inner race. Alternatively, this ring may be carried in a one-piece detachable grooved ring of the form shown in Fig. 10. A similar seal may be fitted at the opposite side of the bearing. Natural or synthetic rubber or polyamide may be used for the sealing rings and the sealing edges of the rings may be rounded instead of sharp.
Patent GB-438393-A (GB)
Title: Improvements in automatic emergency brake mechanism for vehicles
IPC: B60T7/22
Filed: 1934-11-06
Abstract: 438,393. Vehicle collision-guards. LEMPERT, L., 66, Wellington Street West, Higher Broughton, Manchester. Nov. 6, 1934, No. 31814. [Class 103 (ii)] [See also Group XXXIV] A movably mounted fender a on a vehicle is adapted to yield when engaging an obstruction and by means of a catch f to release a spring drum i adapted to operate a brake pedal l. The spring drum, which contains a coil spring fixed at one end to the drum and at the other to a fixed part, is reset by a cable m having a handle m<1> in the driving department of the vehicle. The catch f is adapted also to break the ignition circuit between the source of supply r and the distributer s and also to make a circuit from the battery u to an electromagnet v which is formed as a trigger and releases a contact w to make a circuit through a warning light x and a bell y. The light may be on top of the vehicle. The ignition circuit may also be broken by the contact w. The electromagnet and contact may be enclosed in a sealed case. A fender a may be provided at the rear of the vehicle.