baber/WOPTO huggingface dataset:
Patent GB-1040642-A (GB)
Title: Control circuit for electrical energy
IPC: H03K17/72
Filed: 1964-01-31
Abstract: 1,040,642. SCR switching circuits. STANDARD TELEPHONES & CABLES Ltd. Jan. 31, 1964 [Feb. 4, 1963], No. 4206/64. Heading H3T. A control circuit comprises a linear impedance in series with two semi-conductor devices which can exist in high and low conductance states, one of these being triggered into a high conductance state by an input signal at an auxiliary electrode, and means responsive to the current through the circuit to develop output signals. In Fig. 1 the impedance is a resistor 20 and the semi-conductor devices are an SCR 16 and a four-layer diode 18 respectively. The devices 18, 16, 32, 34 are non-conducting, and capacitor 24 is charged, until an input pulse 10 arrives which is large enough to overcome the threshold bias across the diodes 32, 34. When a large enough pulse arrives, the SCR 16 fires, and the voltage across the four-layer diode 18 is sufficient to cause that to conduct also. Capacitor 24 then discharges through the four devices and the pulse transformer 22 to provide an output at the secondary. Positive feedback through capacitor 44 ensures rapid switching. When capacitor 24 has discharged to a certain point, the current supplied by this and by resistor 20 is no longer sufficient to maintain conduction in the devices 16, 18 and the circuit reverts to its former condition. The holding current of the diode 18 should be higher than that of the SCR. Within certain limits of desired output pulse frequency and width the transformer 22 may be replaced by a resistor. The circuit may be used to drive a counter to operate a stepping relay and servomotor in a tracking radar which detects a predetermined relationship between transmitted pulses from a aircraft and reply pulses from a ground station.
Patent GB-1170116-A (GB)
Title: Improvements in or relating to Electrolytes for Electrolytic Capacitors.
IPC: H01G9/022
Filed: 1967-01-27
Abstract: 1,170,116. Electrolytic capacitors. TELEFONAKTIEBOLAGET L. M. ERICSSON. 27 Jan., 1967 [27 Jan 1966], No. 4220/67. Heading HIM. In an electrolytic capacitor with an aluminium anode, an electrolyte which retains a low specific resistance at low temperatures comprises a solution in water of a dicarboxylic acid, a substance which will lower the freezing point of the electrolyte, phosphoric acid and/or phosphate, the content of phosphate ion in the electrolyte in the operative finished capacitor being in the range 0.01 to 1% by weight. An exemplary electrolyte is prepared by mixing stated quantities of adipic acid, glycol, water and diammonium phosphate and neutralizing with ammonia.
Patent GB-211865-A (GB)
Title: Improvements in hinges
IPC: E05D11/04
Filed: 1924-02-19
Abstract: 211,865. Larson, A. G. Feb. 23, 1923, [Convention date]. Ball bearing hinges; hinge pins.-A hinge with upper and lower socket members has the upper socket member formed with a screwthreaded portion 2 in order that the hinge pin 1 may be adjusted by means of a screwed plug 3, the lower end of the pin seating on balls 9. The lower socket is closed by a plug 6 secured in position by a pin 8, and a small centre ball 10 is provided to space the balls 9. The pin 1 is prevented from turning in the upper socket 2 by a set-screw 4. The ball bearing may be constructed by a single ball. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the arrangement in which members 1 and 3 are integral. This subject-matter does not appear in the Specification as accepted.
Patent GB-692784-A (GB)
Title: An improved yarn control device
Inventor: STOKES GEORGE EDWARD
IPC: B65H57/18
Filed: 1950-02-20
Abstract: 692,784. Knitting. HOSIERY & ALLIED TRADES RESEARCH ASSOCIATION. Feb. 20, 1951. [Feb. 20, 1950] No. 4254/50. Class 74 (ii). [Also in Group IX] A device for controlling yarn being withdrawn from a supply package comprises at least one filament which embraces a part of one circumference of the package and between which and the peripheral surface of the package the yarn is drawn off. As shown the device consists of a flat base 1 having at each corner an upstanding post 3, 4, 5, 6, each post having an arm 8, 9, 10, 11, attached to its upper end such that each arm inclines upwards towards its free end, the angle of inclination being adjustable. A yarn cone 7 is carried by a truncated cone-support 2 on a second base 25 which is slidable on the posts 3, 4, 5, 6 such that its height above the base 1 may be adjusted by the threaded post 24 engaging the threaded bore 26 of the cone 2. The threaded post 24 is rotatable by the pinion 28 thereon meshing with a gear 29 having a knurled disc part 30. A length of thread 12, 13, 14, 15 is attached to each arm near its root end and extends around and in contact with the peripheral surface of the yarn cone 7 for about 90 degrees and passes then over a second arm at right angles to the first and hangs downwardly and has a weight 16, 17, 18, 19, attached to its free end. In use yarn from the core 7 is withdrawn upwardly and passes between the noose formed by the threads 12, 13, 14, 15 and the peripheral surface of the yarn cone 7. In a modification the truncated cone support is fixed to the main base and the arms are made slidably adjustable on the upstanding posts.
Patent GB-910717-A (GB)
Title: Improvements in clamps for securing work to the tables of machine tools
Inventor: BOOTH NORMAN
IPC: B25B5/10
Filed: 1960-02-05
Abstract: 910,717. Machine-tool details. NORWOOD (PRECISION PRODUCTS) Ltd. March 28, 1961 [Feb. 5, 1960], No. 4261/60. Class 83 (3). A work-clamp incorporates a flanged fastening member which can be fastened in the T-slot of a work-table and a separately operable clamping member for securing a workpiece to the table. The flange 3 of the fastening member 1 is adapted to fit into the T-slot of a machine table and a locking collar 4 is tightened to secure the member 1 to the table. The clamping arm 8 engages the work at its end 10 and is tightened by a bolt 5 which screws into the threaded bore 2 of the fastening member. A heel-screw 11 is screwed into the end of the clamping arm opposite that engaging the work. In a modification a body member carrying the heel-screw fits over the fastening member 1.
Patent GB-1214125-A (GB)
Title: Process for the preparation of halogenated esters for phosphorus acid esters
Inventor: ISMAIL ROSHDY
IPC: C07F9/12
Filed: 1969-01-24
Abstract: 1,214,125. Halogenated phosphorus acid esters. DYNAMIT NOBEL A.G. 24 Jan., 1969 [25 Jan., 1968], No. 4282/69. Addition to 1,168,819. Heading C2C. [Also in Division A5] Halogenated phosphorus acid esters of formulµ where R is H, halogen or alkyl, R<SP>1</SP> is alkyl, alkenyl, cycloalkyl or aryl, R<SP>2</SP> is C 1-4  optionally halogenated alkoxy, aralkoxy, cycloalkoxy or an optionally halogen-, alkyl-, aryloxy- or nitro-substituted aryloxy radical, R<SP>3</SP> is optionally halogenated phenylene, diphenylene or diphenylene alkane which may be further substituted, R<SP>4</SP> has the same meaning as R<SP>1</SP> or R<SP>2</SP>, X is oxygen, Y is halogen, m<SP>1</SP> is 0, in which case R is halogen, or is 1-3, m is 0, in which case R is halogen, or is 1-4, n is 0 or 1, a and b are 0, 1 or 2, (a + b) being at most 2, A and B are H, C 1-4  alkyl, or cycloalkyl and p is 0 or 1, are prepared by reacting an acid halide of formula or formula where Y<SP>1</SP> is halogen other than fluorine, at a temperature of 50 to 200 C. with a halogenated phenol of formula or by reacting an acid halide of formula at a temperature of 50 to 220 C. with a bisphenol of formula the reactions being effected in the presence of a catalytic quantity of a tertiary heterocyclic base of aromatic character, or an acid amide which is optionally N-mono- or -di-substituted, or an organo-phosphorus, -arsenic or -antimony compound, or a salt thereof. The reaction may be carried out in the melt or in the presence of solvents. The products have insecticidal properties.
Patent GB-607821-A (GB)
Title: Electric powder control
IPC: B23K9/32
Filed: 1946-02-12
Abstract: 607,821. Electrically-actuated powder-seal valves. LINDE AIR PRODUCTS CO. Feb. 12, 1946, No. 4361. Convention date, March 31, 1945. [Class 135] [Also in Group XXX] In a method of controlling the flow of a stream of magnetizable powder, the powder is conducted through a conduit 8 of non-magnetic material and a magnetic field is established across the conduit of sufficient strength to magnetize the powder and thereby to influence its rate of flow. A magnetic field is produced across the conduit 8 by an electromagnet. The conduit is secured in position between polepieces 18 by plates 40 and screws 42, the openings 44 are provided in the polepieces 18 for electrical connections with the coil. The valve is enclosed in a non-magnetic housing 24 and a coil 22 is electrically connected to a source of electricity in a circuit including a switch and a rheostat. The coil 22 is wound between discs 27 on a cylinder 28 which fits an iron core 30 which has projections extending through iron yokes 36 to the top of which the iron polepieces 18 are secured by screws 38. The side cover and bottom cover 54 of non- magnetic material are secured to the yokes 36 by screws 56 and the space around the coil is filled with cement 60. In a modification, the conduit extends vertically through two similar valves. When the valves are energized alternatively and measured charge of powder is delivered, the amount being determined by the distance between the valves and indicated by a vertical scale mounted on the panel adjacent a pointer.
Patent GB-1300087-A (GB)
Title: Cultivation of yeasts
IPC: C12N1/28
Filed: 1970-01-29
Abstract: 1300087 Preparation of citric acid by fermentation ASAHI KASEI KOGYO KK 29 Jan 1970 [30 Jan 1969 26 Feb 1969] 4404/70 Heading C2C [Also in Division C6] The hydrocarbon-consuming yeasts Candida petrophilum, Torulopsis petrophilum or Brettanomyces petrophilum are aerobically cultivated in a fermentation tank in the presence of a liquid hydrocarbon supplied in the form of an emulsion including the hydrocarbon itself, an aqueous medium containing inorganic salts, organic nutrients and nitrogen containing materials, fermentation waste liquor (5-75% by volume, based on the entire volume of medium) and a small amount (up to 0À5% by volume) of an alcohol, of which many are particularly mentioned. Aqueous nutrient media (not necessarily of the same composition) are fed to both the tank wherein the emulsion is produced and to the fermentation tank. Fermentation waste liquor as such or its hydrolysate or a lighter liquor obtained by centrifuging, may be recirculated for the emulsification. The heavier liquor remaining may be treated with a non- ionic surface-active agent and heated to recover the cells. One of the examples describes the cultivation of Candida petrophilum on n-hexadecane provided as an emulsion also containing a specified aqueous nutrient medium, a lighter fraction from the fermentation waste liquor and propanol. Citric acid was recovered from the heavier liquor, freed of the cells, by first acidifying with sulphuric acid and then extracting with ether.
Patent GB-459415-A (GB)
Title: Improved purifier for wood gas generating plant used on vehicles
IPC: F02M35/026
Filed: 1936-02-13
Abstract: 459,415. Wood gas generating-plant. LINNEBORN, H., 17, Adolf Hitler Ufer, Rodenkirchen, Cologne, Germany. Feb. 13, 1936, Nos. 4440 and 4441. Convention dates, Feb. 13, 1935 and Aug. 17, 1935. [Classes 55 (i) and 55 (ii)] The purifier of a wood gas generating installation used on vehicles consists of a settling - chamber 1, through which the gas first passes, with cooling-tubes 2 arranged thereabove and traversed by the gas during its passage to the motor conduit 13. In a modification, horizontal cooling- tubes are used ; and a second purifier packed with filling material may also be used.
Patent GB-262990-A (GB)
Title: Apparatus for conditioning heated raisins or other dried fruit
IPC: A23P20/15
Filed: 1926-02-17
Abstract: 262,990. Marks, E. C. R., (Sun-Maid Raisin Growers of California). Feb. 17, 1926. Conditioning dried fruit.-Apparatus for the treatment of dried fruit, more especially according to part of the process described in Specification 262,988, comprises a chamber having means for conveying hot fruit therethrough together with means for applying staged cooling to the fruit in its travel. In the construction described, raisins to be cooled are fed through a gate G into a cylinder 11 having a screw conveyer 12, and are removed through a gate J. The conveyer 12 has apertures 14 through which a certain amount of the fruit can fall to give a tumbling action, and is driven by a shaft 13 from which the sealing gates G, J. which are preferably formed of vanes 62, 63 revolving in housings on shafts 64. 65, are also driven through chains 66, 67. The cylinder 11 is enclosed in a cylinder 15 and is connected throughout its length by a slot 60, Fig. 2, with an upper cylinder 17 which is in turn connected at intervals by pipes 19, 19<1> with an exhaust pipe 18 through which the moist vapours from the fruit are drawn off. The upper cylinder 17 and the space between the cylinders 11, 15 are divided by a transverse wall 20 into a longer and a shorter zone H, I. In the zone H no communication exists between the cylinders 11, 15 and the cooling water enters the space between through pipe 68 and leaves through pipe 69, effecting a gradual cooling of the raisins. In the zone I the cylinder has fine holes 22, Fig. 2, on one lower side through which a refrigerant gas, such as air at a slight pressure above atmospheric, enters from cylinder 15 to which it is supplied through pipe 21. The air expands within the fruit 23, which is banked up by the conveyer above the perforations, and cools it, being withdrawn through cylinder 17 and pipes 19<1>, 18. A small amount of air may be admitted through gate 70 to assist the removal of the vapour. The raisins are treated with atomized oil at different points; the oil may be either mineral or vegetable but is preferably that expressed from the raisin seeds. The oil is delivered through pipe 28 to nozzles 24-27 each of which is valve-controlled: compressed air, also valve-controlled, is supplied to the nozzles by pipe 29. Nozzles 24, 27 supply oil to the raisins falling through the gates G, J, the oil blast being directed to the working surfaces thereof. Nozzles 25 supply oil to the cylinder 11 in the zone H and nozzle 26 is situated adjacent the cold air inlet 21 on the cylinder 15 so that the oil is carried bv the air to the raisins in the inner cylinder. The oil improves the flavour of the fruit and prevents adhesion, and also serves to lubricate the frictional surfaces of the apparatus. The raisins pass out through gate J cooled to about the temperature of the packing room, to a shaker fed table K for further treatment such as aeration or packing.
Patent GB-999971-A (GB)
Title: A double-acting piston seal for use in a medical syringe
IPC: F04B53/14
Filed: 1962-02-07
Abstract: 999,971. Surgical syringes. L. NOGIER, and P. NOGIER. Feb. 7, 1962 [Feb. 8, 1961], No. 4675/62. Heading A5R. [Also in Division F2] A piston seal for a medical syringe is hollow, open on one side and convex on the other, recesses in the open side defining an inner ring 2, for receiving the syringe piston 3, and a peripheral ring 7 separated therefrom by an annular gap C, C<SP>1</SP>, the peripheral ring being deformable radially outwardly upon pressure being exerted on its ends or a greater pressure being exerted on its inside face than its outside face. The inner ring 2 has a narrow opening 5 leading to the wider recess 4 which receives a boss 6 on the piston head. The convex forward surface of the seal merges into the peripheral skirt portion 7. The peripheral skirt is thinner than the remainder of the seal and may have external circumferential ribs. On projecting the piston to discharge medicament from the syringe, the pressure of the medicament against the forward surface of the seal and the opposite pressure of the piston against the rear of the skirt causes the seal to expand laterally so that the skirt sealingly engages the syringe barrel. On retracting the piston, the air pressure in the annular gap is greater than the pressure in the barrel forward of the piston and presses the peripheral skirt outwardly against the syringe barrel.
Patent GB-415397-A (GB)
Title: Improvements in or relating to sliding clasp fasteners
IPC: A44B19/36
Filed: 1933-02-16
Abstract: 415,397. Sliding - clasp fastenings. MULLER, R., 39, Honselerstrasse, L³denscheid, Westphalia, Germany. Feb. 16, 1933, No. 4702. [Class 44.] To prevent a closed sliding-clasp fastener being splayed open at the end remote from the slider a U-shaped member 9 is provided adjacent the bottom element on one stringer and a co-operating member 10 similarly positioned on the other stringer enters between the legs. The limbs of these members are approximately of the size and spacing of the elements on the stringers. The stringers can be completely separated, after being opened by the slider, by a stop member 12 retaining the slider on the stringer 1 while the stringer 2 fitted with a metal end 11 is drawn out of the slider. Fig. 4 shows an alternative form of the end members 9, 10 ; the member 9 is adapted to act also as an end stop being slightly lengthened and so butting on the interior wedge of the slider.
Patent GB-216494-A (GB)
Title: Improved method of and apparatus for the melting of glass
IPC: C03B5/12
Filed: 1924-02-26
Abstract: 216,494. Oppermann, F. M. May 23, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Production of metal. - A process of making glass consists in allowing a pot of metal to cool, from the temperature at which the metal is refined to the working temperature, in an apparatus which is separate from the furnace in which the metal is refined and also from the furnace in which the batch is melted. The batch may be melted in a pot or tank furnace and the metal is ladled or poured into a pot which is placed in a refining furnace. After the metal is completely refined, the pot is removed and placed in a tunnel through which it is conveyed by mechanical means. The tunnel is heated similarly to the usual form of lehr, so that when the pot reaches the exit, the metal has cooled to the working temperature and may be worked-out or cast. The pot is then refilled with metal and the process is repeated.
Patent GB-505700-A (GB)
Title: Improvements in liquid beverage pumping engines
IPC: B67D1/02
Filed: 1938-02-17
Abstract: 505,700. Dispensing beer &c. PARNALL & SONS, Ltd., and GABB, A. H. Feb. 17, 1938, No. 4900. [Class 102 (i)] [Also in Groups XIII and XVIII] In apparatus for dispensing beer or other liquid beverage, a suction pump 5, the delivery pipe, and the mechanism adjacent the delivery outlet, are mounted inside an insulated casing 1 containing a refrigerating coil or other cooling element 3 and a receptacle 6 below the pump, so as to maintain a reserve of cooled liquid in readiness for delivery by the pump. The receptacle 6 is readily disconnectable and may be made of copper, whilst the casing 1 may be insulated by cork 2, lined with zinc 8, and fitted with doors 7.
Patent GB-793215-A (GB)
Title: Hydrocarbon conversion process
IPC: C07C5/44
Filed: 1956-02-17
Abstract: Aliphatic hydrocarbons containing at least six carbon atoms, at least one of which is a quaternary carbon atom, are heated with iodine or a compound which yields iodine under reaction conditions at an elevated temperature to give a different hydrocarbon by effecting bond cleavage and converting at least one quaternary carbon atom to a non-quaternary carbon atom.  Reactions which may occur are isomerization, cyclization, dehydrogenation, aromatization, and dealkylation.  The aliphatic hydrocarbon may be an alkane or alkene and preferably contains one quaternary carbon atom in a chain of at least five carbon atoms.  The reaction may be carried out in the liquid or vapour phase in the presence of inert solids or catalysts or with a diluent.  Temperatures of 300-600 DEG  C. are preferred at atmospheric pressure with reaction times of 0.01 second to 5 minutes. The amount of iodine varies according to the desired reaction and particularly on the extent of dehydrogenation, and is preferably in the range 0.05 to 4 equivalents of iodine for each equivalent of hydrogen to be removed.  Alkyl iodides such as ethyl, propyl or hexyl iodides may replace iodine as the reactant.  In a typical example, 2,2,4-trimethyl pentane and iodine in an iodine/hydrocarbon ratio of 0.31 were heated in the vapour phase at 444 DEG  C. and atmospheric pressure for 26 seconds.  Xylenes, isobutane and isobutene were recovered as the principal products.
Patent GB-674207-A (GB)
Title: Improvements in and relating to method of and apparatus for drilling long holes
Inventor: CUDINI ROGER G
IPC: B23Q3/06
Filed: 1950-02-27
Abstract: 674,207. Long-hole drilling. MOYNAHAN BRONZE CO. Feb. 27, 1950, No. 4987/50. Class 83 (iii). A method of drilling long holes in the form of precisely aligned openings through a plurality of spaced projections of an elongated workpiece, comprises precisely aligning said projections, constantly rotating and continuously feeding a drill through the spaced projections in sequence to drill aligned openings therethrough, and engaging and guiding the leading end of the drill as it passes through the spaces between the projections. The work-piece in the embodiment described comprises an elongated hinge-member 1, Fig. 10, having a bead 2 along one edge and portions milled out along the edge to provide alternate spaces and projections, with a long hole 4. The work is positioned in a V-shaped recess 10, Fig. 3, in a support 6 carried by a machine base 5. Clamping of the work is effected by a number of air-actuated piston-rods 19 carried at one side of the machine on brackets 25. Preliminary adjustment of the clamping members is effected by adjusting screws 24. Guide bushes 26, Fig. 6, are clamped by plates 27 in the V-recess 10 of the member 6 to occupy positions intermediate the hinge projections and thus to guide the leading end of the drill as it passes through the spaces. A drill head 34, Fig. 1, having a spindle 35 driven from an electric motor 32 and slidable along guides 31 is provided at each end of the machine, the drills being in axial alignment. The drill carriages 30 are reciprocated longitudinally of the bed by hydraulic double-acting cylinders 36, 50, Figs. 1 and 3, and elongated piston-rods 37 connected to the carriages by brackets 38. The free length of the drill 43 prior to the commencement of the drilling operation is supported by a series of rectangular plates 44, Fig. 9, in turn slidably supported on fixed guide-bars 40. The plates 44 are interconnected by links 46, Fig. 8, and as the drill enters the work the plates 44 approach one another, finally occupying the fully-folded condition against a front support bushing 48, Fig. 8. Solenoid-operated valves are used to control the various airpressure movements, and limit switches and a cam-controlled switch is also employed to give slow feed movements during drilling, rapid passage of the drill across the gaps in the work and a rapid drill return movement.
Patent GB-1320184-A (GB)
Title: Cyclic carboxylic acid derivatives
IPC: C07C57/58
Filed: 1970-05-14
Abstract: 1320184 Cyclic carboxylic acid derivatives TAKEDA YAKUHIN KOGYO KK 14 May 1970 [14 May 1969 25 Dec 1969 26 Dec 1969 18 April 1970 (2)] 5000/73 Divided out of 1320181 Heading C2C Novel compounds Ic in which R 1 <SP>1</SP> is 1-6 C alkyl; R 2 <SP>1</SP> is OH or alkoxy; X is halogen and n is 2 or 3 and their pharmaceutically acceptable salts are prepared by reducing compounds VI and halogenating the resulting compounds or by reducing compounds VII Compounds VI and VII are described and claimed in copending Specification 1,320,182. Pharmaceutical compositions comprise a compound Ic together with a suitable excipient and are administered orally or parenterally as analgesics, antipyretics and anti-inflammatory and antirheumatic agents.