baber/WOPTO huggingface dataset:
Patent GB-1013276-A (GB)
Title: Separation and recovery of components from gas mixtures
Inventor: LORENZ LOTHAR
IPC: C07C7/11
Filed: 1962-10-02
Abstract: <PICT:1013276/C4-C5/1> In Example 1, acetylene, carbon dioxide and ethylene are recovered separately, from a mixture containing also methane and inert gases by passage through three absorption zones (5, 7, 9) in series, acetone being passed through one of said absorption zones and a corresponding two-stage desorption zone (20-21, 15-16, 10-11, respectively) for each component to be separately recovered, said absorption and desorption zones being traversed by the solvent alternately in series and in a closed circuit and acetone from the zone (5) for the most readily soluble gaseous component after passage through its desorption zone (20-21) being completely stripped and returned to the absorption zone (9) for the most difficultly soluble component.  Each desorption zone comprises a countercurrent scrubbing zone (20 &c.) in which part of the component to be separated at that stage is used to strip more difficultly soluble components and a degassing zone (21 &c.) in which the component to be liberated is partially removed by reduction of pressure.  The temperature and pressure in the absorption zones is such that the component to be separated therein is just completely absorbed. As shown in the figure, to which the above numerals relate, the gas mixture to be separated is introduced to the apparatus at 1, compressed at 3 and passed via a heat-exchanger with the residual gases to first absorption zone 5, the unabsorbed gas is again heat exchanged with the effluent and passed to second absorber 7 and thence after heat exchange to the third absorber 9.  Completely stripped solvent is passed into absorber 9 and thence to desorber 10 in which residual gases are desorbed by means of a part of the most difficultly soluble separated component which is obtained from the desorbed liquid by means of vacuum stripper 11 and the majority of which is removed as product at 13.  The solvent, largely free from said component is then passed to absorber 7 and a similar procedure adopted in relation to the next most soluble gas and then again to zone 5 where the most soluble gas is removed as product at 23. Solvent from desorber 20 after vacuum stripping at 21 is passed to zone 25 where it is completely de-gassed by evaporating part of the solvent.  The upwardly rising mixture is freed of solvent vapour in the upper part of stripper 25 by means of cold solvent flowing in countercurrent and the gas is combined with that from the stripper 21.  The stripped solvent is then cooled by means of heat-exchanger 26 and returned to absorber 9 via further coolers 24, 19 and 14 which serve also to heat the solvent when it is flowing into absorbers 5 and 7 and the stripper 25 and by means of additional heat-exchangers 27, 28 and 29.
Patent GB-1138138-A (GB)
Title: Strap fitting for monocular mirror-reflex cameras
IPC: A45C11/38
Filed: 1967-08-16
Abstract: 1,138,138. Camera strap fitting. FRANKE & HEIDECKE G.m.b.H. [trading as ROLLEIWERKE FRANKE & HEIDECKE]. Aug. 16, 1967 [Sept.27, 1966], No.37708/67. Heading G2A. A strap fitting for monocular mirror-reflex cameras Fig. 1 is rotatable on the camera side walls 1 about an axis of rotation coaxial or substantially coaxial with the axis of gravity of the camera extending transversely to the optical axis, said fitting including an eye 4 for a camera strap, which eye may engage with a snap hook 7 at the end of the camera strap. The eye and hook may be elongated tangentially to the axis of rotation so that the hook-eye connection is rigid in the direction of rotation of the fitting.
Patent GB-633711-A (GB)
Title: Improvements in or relating to the production of compounds containing the isoprene grouping
IPC: C07C403/00
Filed: 1946-12-24
Abstract: An isoprene unit is added to an aldehyde or ketone, containing at least three carbon atoms in the molecule, by subjecting said compound successively to a series of four reactions, namely, a condensation with a haloacetate in the presence of zinc or magnesium, a dehydration, a reduction with an aluminium containing hydride and an oxidation in the presence of acetone and an aluminium alkoxide or magnesium alkoxide.  Among the compounds specified as starting materials are benzaldehyde, furfural, acetone, diethyl ketone and acetophenone.  There may be used as catalysts in the dehydration step, zinc chloride, p-toluene sulphonic acid, iodine, phosphorous oxychloride, oxalyl chloride, phosphorous trichloride and dimethyl aniline hydriodide.  The reduction step may be carried out in the presence of a solvent such as ether or dioxane.  Detailed examples are given of the process above, starting with (1) b -ionone; (2) allyl acetone; (3) propionaldehyde; (4) hexahydro-pseudo ionone.  The products of (1) and (4) are Vitamin A and phytol respectively. Specifications 633,748 and 633,749 are referred to.
Patent GB-1082452-A (GB)
Title: Apparatus for heating filamentary material
Inventor: IWNICKI KURT
IPC: B65D1/02
Filed: 1963-09-26
Abstract: 1,082,452. Treating and crimping yarn or tow. IMPERIAL CHEMICAL INDUSTRIES Ltd. Sept. 10, 1964 [Sept. 26, 1963], No. 37847/ 63. Headings D1F and D1L. Apparatus for treating and advancing filamentary material comprises an inner cylindrical member 73 and an outer cylindrical member 71 defining an annular space therebetween, one of the members at least being rotatable and means 63 closing one end of the annular space and providing an internal filamentary materialcontacting helical cam surface 79. Preferably one or both members are mechanically driven, but if only one member is mechanically driven, the other member may be fixed or rotated by frictional drive from the filamentary material within the annular space. Either or both members may be heated by electric resistances connected if necessary to the supply through slip rings, by induction, or by steam, or other hot gas. As described yarn or tow of nylon or a polyester is passed through a drawing zone if the yarn is not fully drawn, and into a crimping chamber 27 which leads directly into the annular chamber 29 where the helical surface 79 starts the compressed and compacted yarn travelling in a helical path 75. The yarn is discharged over a bell-shaped plunger 31 secured to rod 37 axially displaceable within the driving shaft of cylinder 73. Spring 65 urges the plunger 31 inwardly into the annular chamber. The amount of yarn in the annular chamber is kept substantially constant by the axial position of rod 37 controlling a switch which determines when a high or a low voltage is fed to a magnetic particle brake (47), Fig. I (not shown), in the yarn path between the annular chamber and a constant speed wind-up means. The tension in the yarn, controlled by brake 47, determines the degree of stretch in the yarn being withdrawn from the annular chamber and thus the amount thereof.
Patent GB-846159-A (GB)
Title: Improvements in programming control systems
IPC: G05B19/42
Filed: 1957-12-06
Abstract: 846,159. Pulse shaping circuits. GENERAL ELECTRIC CO. Dec. 6 1957 [Dec. 10, 1956 (2)], No. 38008/57. Class 40(6). [Also in Groups XXXV and XXXVIII.] In a circuit for deriving an output sine wave from an input waveform 4, Fig. 2 a square wave is developed on lead 11 which is integrated at lead 43 arid converted to sine waveform on lead 45. The circuit is desscribed as applied to a programme control system for positioning machine tools (see Group XXXVIII). The input waveform is applied to the circuit 10 which may be a bi-stable circuit to produce a square wave which is integrated in circuit 42, Fig. 3. The square wave appearing on line 11 is fed to the Miller integrator 69 to produce a triangular wave which is fed out over cathode follower 76. In order to maintain the effective height of the square wave constant, the output of the cathode follower is also fed to the push-pull amplifier 80, 82 to provide a rectified output due to diodes 84. The filtered D.C. output controls the conductivity of the tube 90 thereby varying the potentials at the cathode and anode of the diodes 106, 104 each of which limits one excursion of the square wave. The effective bias on tubes 76, 90 may be varied by the corresponding potentiometers 77, 91. The triangular wave on line 43 is converted to a sinusoidal form by applying it to the wave shaper 44, Fig. 4 (not shown, see Group XXXV). The output 45 is applied to a push-pull amplifier 46 feeding an output transformer 50, a feed-back connection being taken from the secondary over line 200 to the wareshaper 44 which is stated to give a more sinusoidal waveform. Since a three-phase output is required, a second output transformer 56 is utilised fed from a push-pull amplifier 54 with the secondaries of the transformers in Scott connection. The sine wave on line 45 is shifted 90 degrees in phase before application to the amplifier 54. The phase shifter 52, Fig. 5 comprises a Miller integrator tube 125 which feeds a vari-mu tube 132 and amplifier 136, the output of which is applied to amplifier 54. To maintain the amplitudes of the A.C. on lines 14 equal, AGC is applied to the phase shifter. Signals from the amplifiers 46, 54 are applied over lines 57, Fig. 5 to diodes 138, 140 to vary the potential on the grid of discharge tube 144, thereby controlling the gain of the tube 132, variations in grid bias being limited in a positive sense by diode 146. Since the record may be played back at a varying speed a frequency discriminator 64 is provided and the output potential is applied over line 66 to the integrator 42 and phase shifter 52, a phase inverter 67 being provided if required. In a modification, Fig. 6 (not shown) a further integrator and wave shaper are provided feeding the amplifier 54, the triangular wave on line 43 being fed to an over-driven amplifier to provide a square wave for application to the second integrator.
Patent GB-1505210-A (GB)
Title: Method and apparatus for treating products from the acid hydrolysis of material containing pentosans
IPC: C07D307/50
Filed: 1976-09-15
Abstract: 1505210 Treatment of products from the acid hydrolysis of material containing pentosans ANSTALT GEMASS 15 Sept 1976 38102/76 Addition to 1483132 Heading C2C The invention comprises a method for the continuous acid hydrolysis of vegetable material which in its raw state contains pentosans and cellulosic fibrous substance according to any one of claims 1 to 5 or 7 to 8 of Specification 1,483,132 characterized in that the said further treatment of said withdrawn pentose-containing hydrolysate comprises the steps of: (i) a first removal by distillation of furfural from the said withdrawn hydrolysate, at a pressure of about 6 kg./cm.<SP>2</SP> gauge and in the temperature range of 155‹ to 170‹ C. to produce a distillate, (ii) withdrawing secondary steam from said distillate to produce a condensate with a concentration of 4 to 5% by weight of furfural, (iii) cooling the condensate to below 100‹ C., (iv) stripping a furfural azeotrope from the condensate at about 98‹ C. in a stripper, (v) utilizing the mixing gap between water and furfural in a separator in order to separate from the condensate a 95% by weight furfural and a dilute furfural solution, (vi) conducting the dilute furfural solution into the said stripper.
Patent GB-1249960-A (GB)
Title: Railway car coupler arrangement
IPC: B61G7/10
Filed: 1970-08-10
Abstract: 1,249,960. Adapter for couplings. AMSTED INDUSTRIES Inc. 10 Aug., 1970 [2 Oct., 1969], No. 38389/70. Heading B7T. In an adapter unit to convert a freight car having a striker casting to receive a spring- supported coupler carrier and an AAR Type F interlocking coupler into a car having an unsprung coupler carrier to receive a non-interlocking rotary coupler, an adapter casting 44 is located in a carrier portion 16 of a striker casting 14 by retainers 66 whose ends are contained within apertures 67 in the sides of the striker casting 14. Associated with the adapter casting 44 is a saddle casting 58 having a concave surface 60 to receive the cylindrical portion of a coupler shank 22 and a T-shaped protuberance 62 to lock the saddle casting 58 to the adapter casting 44 by engaging a slot 52 in the latter. The rear end 40 of coupler shank 22 is located by a pin 42 in a collar 38 which is rotatably mounted in a pocket 32 in a yoke 26 of the draught gear.
Patent GB-1474211-A (GB)
Title: Apparatus for distributing material being processed over  a furnace hearth
IPC: F23G5/28
Filed: 1974-09-03
Abstract: 1474211 Distributing material in furnace hearth NICHOLS ENG & RESEARCH CORP 3 Sept 1974 [18 July 1974] 38556/74 Heading F4B Apparatus for distributing material over the hearth of a furnace comprises a rotatable centre shaft, at least one rabble arm secured to and rotating with the shaft, and separate means for moving the material radially over the hearth and for moving the material circumferentially round the hearth. The means for moving the material radially comprises blades 36 secured on the rabble arms 32 at an angle to the axis of the blades, while the separate means for distributing the material circumferentially may comprise blades 118 on a wire connected between blades on adjacent rabble arms, Fig. 10, chains connected between the outer blade on one rabble arm and the shaft, or between a point part way along a rabble arm and the outer end of an adjacent rabble arm (Figs. 4, 5, 7 and 8), chains 106 secured at one end only to blades 36 in the rabble arms 32, Fig. 9, scrapers 122 secured to the bottom leading edges of the rabble blades, Fig. 11, or alternate rabble arms may have blades arranged parallel to the axis of the rabble arms, while the other rabble arms have blades inclined to the arm axis. The arrangements may be used in multiple hearth furnaces, and the material may be moved over the hearth to central or peripheral drop-holes. Various applications of the invention are described in Specification 1,474,212.
Patent GB-1463519-A (GB)
Title: Anticoccidial compositions
IPC: C07D473/00
Filed: 1974-09-04
Abstract: 1463519 Combating coccidiosis in poultry MERCK & CO INC 4 Sept 1974 [10 Sept 1973] 38698/74 Heading A5B A poultry feedstuff contains from 0.0002% to 0.1 % by weight of a purine compound of formula:- in which n is 0 or 1, R<1> is Cl, Br, I, F, -NO2 or a trihalomethyl radical, and R<2> is Cl, Br, I, F or H, and R<1> and R<2> are located in the 2 and 6 positions, (not necessarily respectively) on the carbocyclic portion of the compound, or R<1> and R<2> are both methyl and are located in the 3 and 4 positions on the carboxylic ring, together with another coccidiostat, the weight of which is from 1 to 300 times the weight of the purine compound, the other coccidiostat being amprolium, ethopabate, sulphaquinoxaline, pyrimethamine, nicarbazin, alklomide, sulphanitran, clopidol, robenzidine, nitromide, 3, 5-dinitro-o-toluamide, roxarsone, arsanilic acid, buquinolate, decoquinate, monensin, nitrophenide, furazolidone, nihydrazone, nitrofurazone, dimethalium, or chlothiamine or a homologue or analogue thereof. A poultry feed supplement composition containing 0.05% to 50% by weight, based on the total composition, of a mixture of the purine compound and other coccidiostat is also described and claimed as is a water-dispersible or water-soluble powder containing from 0.03% to 25% by weight, based on the total composition, of a mixture of the purine compound and other coccidiostat.
Patent GB-1149725-A (GB)
Title: Improvements relating to threading an electric conductor into a conduit
Inventor: SMITH JOHN EWART
IPC: H02G1/08
Filed: 1966-09-01
Abstract: 1,149,725. Threading conductors into conduits. SIMPLEX ELECTRIC CO. Ltd. 31 Aug., 1967 [1 Sept., 1966], No. 38973/66. Heading H2C. In an apparatus for threading conductors into conduits, a P.V.C. insulated conductor 12 is drawn off a reel 11 by motor-driven rollers 14 and 15 and then through a guide tube 20 to the extruded plastics conduit 21, held between adjustable clamping blocks 22. Roller 14 is spring-biased towards roller 15 and the rollers may be grooved to locate respective conductors laterally. The conduit may have an embedded earth wire (24, Fig. 2, not shown).
Patent GB-1325481-A (GB)
Title: Cutting presses
IPC: A43D29/00
Filed: 1970-08-13
Abstract: 1325481 Cutting-out presses SAMCO STRONG Ltd 13 Aug 1970 [14 Aug 1969] 39002/70 Heading B4B A cutting-out press comprises a lower platen 12, an upper platen 14, first fluid pressure means 20, 22 for effecting relative movement of approach between the platens so as to perform a cutting stroke, a work support 26 for supporting the material to be cut, e.g. leather or textiles, and a cutting knife, and second fluid pressure means 34, 36 for effecting heightwise movement of the support means towards and away from the lower platen, the arrangement being such that when the work support is caused to move by the latter pressure means into a position away from the lower platen, movement of the work support transversely of the lower platen is facilitated; a control means 46, 54 is provided whereby, upon initiation of a cutting stroke of the press, the second fluid pressure operated means is operated to cause the work support to move into engagement with the lower platen thus to provide a rigid support for the work support during a cutting stroke of the press. The first fluid pressure means includes a piston connected by a rod 20 to the upper platen 14 via a column. The second fluid-pressure means includes a piston 34 attached by a rod 36 to a bracket 38 which, via rollers 40, is movable along a track 42 provided on the lower platen 12. The piston 34 co-operates with a cylinder 32 connected to the work support 26. A number of piston-and-cylinder devices 32, 34 are mounted on each side of the work support as shown. When the press is being set-up the work support is raised as shown by the pressurized devices 32, 34. When cutting is to be effected solenoid valves 46, 54 are energized thereby causing the upper platen to be moved downwardly under pressure and, simultaneously, the work support moves down into contact with the lower platen by gravity when the cylinders 32 are exhausted by the operation of the solenoid 54.
Patent GB-1318077-A (GB)
Title: Piston bearing
IPC: F15B15/14
Filed: 1970-08-14
Abstract: 1318077 Pistons A.T.O. Inc 14 Aug 1970 [25 Sept 1969] 39347/70 Heading F2T A piston bearing ring 21 comprises an outer bearing portion 23 of synthetic plastics material moulded on to an inner metal support ring 22 having stud-like projections 35 extending from each of its sides 31, 32, the end surfaces 36 of all the projections on corresponding sides of the ring 22 and the corresponding end faces 41, 42 of the portion 23 being coplanar. The projections 35 are spaced circumferentially around the ring 22 alternating with tapered apertures 34 in the ring. A further circle of tapered apertures 33 are spaced radially outwardly of the apertures 34. During moulding, the synthetic plastics material, which may be P.T.F.E. or nylon, fills the apertures 33, 34 in the ring 22, which is preferably of cast aluminium. The bearing ring 21 is held between packing members 24, Fig. 1, in a recess 17 in the piston 12 formed by two parts 14, 15 clamped together by bolts 16.
Patent GB-1531305-A (GB)
Title: Method of separating a label from an adjacent label in a stack of pliant gramophone record labels in an automatic repeated operation and apparatus for bringing the method into practice
IPC: B65H1/04
Filed: 1976-09-24
Abstract: 1531305 Separating sheets TOOLEX ALPHA AB 24 Sept 1976 [24 Sept 1975] 39801/76 Heading B8R Apparatus for separating gramophone record labels 92 assembled in a pile on a post 73 comprises a pair of friction members 75, 77 which in operation contact the outermost label on diametrically opposite sides of the post 73 and are displaced towards one another to cause the outermost label to arch thereby permitting its separation from the pile. The friction members comprise fingers which are operated by cam surfaces 88 on sliding cams 79, 80 driven by a piston and cylinder arrangement 16. The pile is retained in a magazine 36 in which the pile is spring-urged against restraining lugs, the spring- urged means being shaped to provide the labels with a slightly curved surface. Two such piles may be operated on simultaneously, the piles facing one another (Fig. 1, not shown). A pneumatic conveyer (94, Fig. 3, not shown) removes the separated label.
Patent GB-897987-A (GB)
Title: Device for converting the kinetic energy of a rotating spindle into pulses of electrical energy
IPC: G01F15/06
Filed: 1958-12-10
Abstract: 897,987. Oscillating generators. BADGER METER MANUFACTURING CO. Dec. 10, 1958 [Dec. 23, 1957], No. 39886/58. Class 35. [Also in Group XXXVIII] In fluid flow indicating apparatus a shaft 18 is driven from the meter in accordance with the fluid flow and carries a trip pawl 60 having arms 72 engageable with a stop 74 on the upper face of a gear sector 62. The sector 62 is freely and eccentrically mounted on the shaft 18 and engages with a second gear sector 64. The sector 62 rotates with the shaft 18 for 60 degrees rotating the sector 64 correspondingly against the action of a coil spring 76, until the stop 74 is released from the arm 72. Mounted on the sector 64 is a shaft 58 carrying an annular ceramic magnet 82 having six poles of alternate polarity co-operating with six stationary poles 84, the poles 84 having wound coils connected in series to two output wires. The oscillatory movement of the shaft 58 produces pulses in the output wires which are fed to an electromagnetic counter (not shown). In a modification (Figs. 9, 10, not shown) the gear sector 62 is replaced by a disc having spaced-apart geared portions.
Patent GB-829049-A (GB)
Title: Improvements in method for forming slip rings
Inventor: NIPPERT PAUL WILLIAM
IPC: B21D53/16
Filed: 1957-12-23
Abstract: 829,049. Making slip-rings; forging; stamping. NIPPERT ELECTRIC PRODUCTS CO. Dec. 23,1957, No. 39918/57. Classes 83 (2) and 83 (4). [Also in Group XXXV] In the manufacture of an electrical slip-ring, 25, Fig. 14, sheet-metal stock is formed into a cup-shaped blank 25, Fig. 1, having a rounded circumferential edge 32, Fig. 7 (not shown), and the blank is then subjected to coining pressure concentrated on a selected portion of the blank to cause the wall metal to flow and transform the rounded edge into a square edge. Sheetmetal stock is fed through a slot 15 in a bottom die 13, Fig. 1, is sheared-off into a circular blank, Fig. 6 (not shown), by an upper die 20 and is then cupped over a lower protrusion 26. During the upstroke of the upper die, the blank is removed by an ejector 30. The blank with its rounded edge is then coined between lower and upper dies 43, 46, Fig. 3, whilst confined by a surrounding die 42. The upper and lower dies have annular ribs 53, 57, Fig. 4 (not shown), whereby the wall metal flows into a sharp corner, Fig. 9 (not shown). An ejector 62 removes the blank from the die 42. The cupped blank is then placed over a bottom die 72, Fig. 5, and a slug 76 is punched out by a punch 7 1. Simultaneously a protrusion 85 is formed on the inside surface of the bottom of the blank and a depression 78, Fig. 10 (not shown), is formed on the corresponding outer surface. The blank is removed from the punch by a stripper plate 90. A hole 79, Fig. 14, is then drilled through the depression and protrusion for reception of a wire 80 then is crimped thereto by deforming the metal at 81. Two slip-rings 25 are then assembled on a core 82 and insulated sleeve 83.