baber/WOPTO huggingface dataset:
Patent GB-1009575-A (GB)
Title: Process for the separation of hydrogen chloride gas from a gas mixture obtained in the catalytic oxidation of hydrogen chloride gas with a molecular oxygen-containing gas
IPC: C01B7/04
Filed: 1963-12-03
Abstract: <PICT:1009575/C1/1> HCl gas may be separated from a gas mixture obtained by the catalytic oxidation of HCl gas with a molecular oxygen-containing gas, which mixture contains water vapour, by (a) cooling the gases in 2, (b) washing with hydrochloric acid in 5, (c) separating at least a portion of the HCl from (b) into HCl gas and hydrochloric acid azeotrope in 16, (d) washing gases in 5 with water to remove more HCl; conditions being such that the quantities of water vapour drawn off in (d) and the HCl gas from (c) are together equal to the combined quantity of water introduced in (d) and that in the original gases; and the HCl azeotrope from (c) with the dil HCl from (d) is used for washing in (b).  The cooling is to 40-150 DEG C. and may be effected by quenching with water and/or HCl.  The HCl obtained from (b) may be divided into two portions, one being used for quenching in (a), the other being separated into HCl gas and azeotrope.  A condensation step, which may be by cooling, removes a major part of the water vapour.  The condensation may be effected by passing up a tower in which cooling water is sprayed.  The starting material may contain organic impurities.  The oxygen containing gas may be air.  Level AB is kept constant by a level controller which operates a temperature controller which in turn operates a control valve which adjusts the relative amounts of HCl flowing along lines 24 and 25. Specifications 908,022, 968,827, 991,081, 1,005,974 and 1,009,574 are referred to.
Patent GB-1523789-A (GB)
Title: Surgical drainage apparatus
IPC: A61M1/00
Filed: 1975-11-21
Abstract: 1523789 Surgical drainage appliances DEKNATEL INC 21 Nov 1975 [10 Oct 1975] 47966/75 Heading A5R Surgical drainage apparatus, for the drainage of a body-cavity, comprises a first collection-compartment 12 for communication with a vacuum-source, a second collection-compartment 18 for receiving liquid from a bodycavity and having a volume which is small in comparison with the first compartment, the second compartment being contained within the first and being constructed to form a liquid-seal between the two compartments during drainage, a third compartment 14 having a common wall 32 with the first compartment and being in communication therewith through an upright passageway 16, the volume of which is small relatively to that of the third compartment and which is located so that liquid drained from the second compartment enters the first compartment so as to seal-off the passageway thereby isolating the third compartment, subsequent oscillations of said liquid in said passageway being indicative of pressure changes in the body-cavity. To assist the rapid sealing of the passageway 16  by drained liquid, the first compartment is divided, by vertical walls 22, 24, into separate sub-compartments 26, 28, 30, the first of which is directly below the outlet 48 of the sealing-compartment 18. The sub-compartments fill up, in turn, as liquid is drained from the cavity. The whole apparatus is moulded from a clear, rigid, plastics material capable of easy sterilisation.
Patent GB-1023194-A (GB)
Title: Improvements in or relating to the production of polyethylene terephthalates
IPC: C08G63/82
Filed: 1963-12-06
Abstract: Polyalkylene terepthalates are made by transesterifying a dialkyl terephthalate with an aliphatic glycol and polycondensing the product in the presence of a catalyst which is (1) a mixture of a metal salt and a compound having a mercapto group attached directly to an aromatic nucleus or (2) a metal mercaptide of such a mercapto compound.  The transesterification reaction may also be effected in the presence of these catalysts.  Suitable mercapto compounds are 2 - mercapto benzimidazole, 2 - mercapto benzothiazole and 2-mercapto-3-amino-carbazole and suitable mercaptides are salts of these mercapto compounds and Be, Mg, Ca, Sr, Ba, Zn, Cd, Hg, Cu, Al, Pb, Sn, Cr, Mn, Fe, Co and Ni.  A suitable metal salt is zinc acetate.  In examples, dimethyl terephthalate was reacted with ethylene glycol.
Patent GB-1169889-A (GB)
Title: Improvements in and relating to Balustrades
Inventor: HARKIN THEODORE ALLANSON
IPC: E04F11/18
Filed: 1965-11-15
Abstract: 1,169,889. Balustrading. IRONCRAFT CONSTRUCTION CO. (WORTHING) Ltd. 15 Feb., 1967 [15 Nov., 1965], No. 48403/65. Heading E1B. A wrought iron baluster is formed in two parts 20 and 21 connected together by a strap 12 which may be moved along the parts before it is fixed in position by, e.g. bending the parts locally, in order that the baluster may be adjusted in height to suit different height handrails 17. The parts are fixed to the rail 17 and the string 18 by screws passing through pre-formed countersunk holes 16 in the parts. Each part may have opposed major and minor scrolls 13 and 15, as shown, or may comprise a single scroll 24 (Figs. 3, 4, not shown) adjacent the mid-point of the baluster, and a bendable fixing lug 23 at the other end. The strap 26 in this embodiment may also be fixed to the parts 20 and 21 by grub screws.
Patent GB-1159599-A (GB)
Title: Stabilizing Polyamides
Inventor: WILHELM HANS
IPC: C08K5/00
Filed: 1966-10-28
Abstract: 1,159,599. Stabilizing polyamides. BADISCHE ANILIN- & SODA-FABRIK A.G. 28 Oct., 1966 [29 Oct., 1965], No. 48418/66. Heading C3R. Polyamides are stabilized against heat and light by incorporating 0À05 to 2À5 wt. per cent of an inorganic iodide and 0À01 to 0À5 wt. per cent of a copper complex containing the grouping wherein each R is independently H or an unsubstituted or hydroxy-, alkoxy- or halosubstituted and X is a radical having 2 to 12 atoms in the chain linking the two N atoms. Various compounds are mentioned. In the examples potassium iodide and the copper salt of tetramethylene-bis (iminophenylacetic acid) is incorporated during the polymerization of nylon 6 or 66/6 of K-values from 62 to 86.
Patent GB-1293756-A (GB)
Title: Process for copying in three dimensions
Inventor: SWAINSON WYN KELLY
IPC: G03F7/00
Filed: 1968-10-14
Abstract: 1293756 Photographically producing threedimensional images W K SWAINSON 31 Oct 1969 [14 Oct 1968] 48581/68 Addition to 1243043 Heading G2C Permanent three-dimensional images in a block  of material are produced by exposing the block containing a photo-chromic compound and being heatsensitive, to two beams of different radiation which intersect only within the block and effecting relative movement between the block and beam intersection, the first beam converting the photo-chromic compound to its coloured state and the second beam (to which the block is transparent) is absorbed by the colour and thus generates heat to produce a permanent image. The specified heat-sensitive material is a uniformly exposed resicular material. The block is preferably rotated so that the side on which the second beam impinges is moving away from the beam so that this beam, which has scanned the object, is not obstructed by the image already formed.
Patent GB-1402646-A (GB)
Title: Discharge device for a can
IPC: B65D25/48
Filed: 1972-08-25
Abstract: 1402646 Vented pouring spouts for jerry-cans W SCHIEMAN 25 Aug 1972 [26 Oct 1971] 48952/74 Divided out of 1402645 Heading B8V The disclosure is substantially identical with that of the parent Specification 1,402,645. The claims relate to the combined pouring spout/ venting tube.
Patent GB-1076587-A (GB)
Title: Helical conveyor heat-exchanger
IPC: B29C48/85
Filed: 1965-11-18
Abstract: 1,076,587. Screw conveyer. METALLGESELLSCHAFT A.G. Nov. 18, 1965 [Nov. 18, 1964], No. 49096/65. Heading B8A. [Also in Divisions B1 and F4] A helical conveyer heat-exchanger comprises two pairs of hollow, helical conveyer elements arranged within a jacketed casing, the apparatus being intended for heating, cooling or drying of granular, pasty, or liquid substances or for mixing these substances of similar consistency or with liquids or particulate solids. The elements 1, 2 of one pair rotate in one direction and the elements 3, 4 of the other pair rotate in the opposite direction. The respective elements 1, 2 or 3, 4 of each pair intermesh with one another for the whole depth of helix (as shown). Adjacent elements 2, 3 of the respective pairs only partly intermesh. The axes of the elements may all be in the same plane (as shown) or in two planes each containing a pair of elements, Figs. 4, 5, not shown. Fig. 3 shows the flow path of the substances being conveyed through the casing by the elements, the interior of the casing being shaped as shown to conform to the pattern of the elements. The casing has a cover (not shown) secured thereto by means of lugs 7a. The substance being conveyed enters the casing above the elements and is discharged below the elements at one end of the casing through an outlet (not shown). Heating or cooling fluid passes through the. jacket space 5 in the casing by way of inlet/ outlet connections 7; and also passes through the helical conveyer elements. These each comprise a tube (14) surrounded by a hollow screwthread (15) (Fig. 6). The element rotates in end bearings 8. The screw-thread communicates at one end through a transverse port (24) with the tube interior space, and at its other end by means of another transverse port (23) with an annular inlet or outlet duct (22) passing through one of the bearings 8. A further duct (20) passes concentrically through the duct (22) into the tube interior. The heating or cooling fluid passes into and from the element by way of the ducts (20, 22).
Patent GB-1427374-A (GB)
Title: Re-picking device for hops and other plants
IPC: A01D46/02
Filed: 1973-10-23
Abstract: 1427374 Picking hops AGROSTROJ PROSTEJOV NV 23 Oct 1973 [6 Nov 1972] 49366/73 Heading A1F Apparatus for completely separating plants such as hops from clusters or off-shoots after picking includes a rotatable tined drum 9 which is partially surrounded by a tined chain 10 which moves at a different speed. Picked hops are conveyed to a first roller conveyor 2 where some hop cones and small clusters fall onto collecting conveyor 14. Offshoots and large clusters are raised by conveyor 3 between tined conveyors 5. The offshoots clusters and separated cones pass to a first transfer conveyor 7 which, if perforated, allows the cones to fall onto the conveyor 14, otherwise the cones do not fall until passing over second roller conveyor 8. A spring biassed, upper, end roller guides the off-shoots and remaining unpicked clusters between the drum and chain. Picked cones fall through a second transfer conveyor 11 or a third roller conveyor 12. Plant remainders are discharged to conveyor 13.
Patent GB-1334769-A (GB)
Title: Device for the control of a high pressure pump
IPC: F04B49/20
Filed: 1971-10-25
Abstract: 1334769 Controlling pumps J LEISTIKON 25 Oct 1971 [26 Oct 19701 49408/71 Heading F1A In a high pressure pumping arrangement, e.g. for supplying a hydrodynamic cleaning device, comprising a pump 10 driven by an I.C. engine or electric motor 28 through a centrifugal clutch 40, and delivering liquid from a supply vessel 37 to an output connection 38 via an automatic pressure regulating valve 11, controlling bypass line 6a, and a stop valve 12, a device 31 responsive to the pressures in delivery lines 6 and 8 controls motor 28 or clutch 40 to stop the pump when stop valve 12 is closed. As shown, device 31 comprises a double-acting piston 32 connected to the engine fuel control 27, and biased by spring 35 to the full-speed position. When valve 12 is closed, the increase in delivery pressure causes valve 11 to connect line 6 to by-pass line 6a, the high pressure in line 8 then moving piston 32 against spring 35 to the idling- speed position, so that centrifugal clutch 40 disengages. In Fig.2 (not shown), two singleacting pistons connected by a balance beam to control 27 are respectively connected to lines 5 and 7.
Patent GB-1414247-A (GB)
Title: Resistance variable device for sensing coolant temperature
IPC: G01K13/02
Filed: 1973-10-25
Abstract: 1414247 Thermistor devices MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 25 Oct 1973 [26 Oct 1972 13 Dec 1972 (3) 19 Feb 1973 21 May 1973] 49747/73 Heading H1K Temperature sensing thermistor device for the outlet channel of the cooling jacket of an I.C. engine comprises (Fig. 1) a cylindrical metal housing 11 with open end 15, closed end 16, and stepped bore 12; a disc thermistor 17 being inserted in the end portion 16 between metal disc 16a and metal disc 18. An insulated cylinder 24 isolates the upper electrode from the housing while a spring bearing on metal plate 18 urges the thermistor into contact with end 16 of the housing. A flanged ring insulating spacer 23 and metal disc 26 flared at 26<SP>1</SP> to engage shoulder 14 determines the pressure exerted on thermistor 17 by overlying spring 28, and disc 26 supports thermistor 27 connected in parallel with thermistor 17, while metal ring 29 establishes contact between it and axial conducting spring 28; which is insulated by cylinder 25. The open end is closed with an insulant cap 20 containing a terminal 21 connected over insulated wire 19 to disc 18, and a terminal 22 is connected to spring 28 over apertured metal disc 33. Thus terminals 21, 22 are electrodes for thermistors 17, 27 to which housing 11 is a common return (Fig. 2, not shown) and the interfaces 30, 31 and the housing are filled with thermally conducting insulant, e.g. silicone oil. The exterior of the housing has annular enlargements and recesses to engage an enclosing member, and the terminals are protected by tubular insulating enclosure caps containing connectors for the terminals (Figs. 6, 7, not shown). In a modification (Fig. 3, not shown) three thermistors are accommodated in parallel within the bore and biased by intervening springs with independent external connections to two and a single connection to the remaining thermistor with return through the housing. (Fig. 4, not shown). In a further modification (Fig. 5) a housing 201 has open end 202, closed end 203 and internal bore 204 within which is disposed a disc thermistor 205 under a ring insulator 206 a further thermistor 207, a ring insulator 208, and yet a further thermistor 209. Thereon is disposed a ring insulator 210 underlying a compression coil spring 211 engaging a downwardly projecting moulding 212 in the open end of the housing. Insulated leads 213, 214, 215 extend through the moulding and are soldered to the thermistors which are independently connected (Fig. 4, not shown). Fluid tight packing 216, 217 of, e.g. rubber provide fluid tight sealing, and a sealing moulding 218 of epoxy resin is positioned in a cavity of moulding 212 to surround the leads.
Patent GB-1184789-A (GB)
Title: Switching Circuits for Storage Accumulators
Inventor: WAREHAM LESLIE
IPC: H02P7/18
Filed: 1966-11-07
Abstract: 1,184,789. Control of D.C. motors. C.A.V. Ltd. 18 Oct., 1967 [7 Nov., 1966], No. 49768/66. Heading H2J. A load, such as a motor 9, is supplied from a circuit comprising diodes 1c-4c each shunted by an accumulator 12-15 associated with a switch 1a-4a respectively. When switch 1a is closed, for example, the motor is supplied from accumulator 12 through diodes 2c-4c in series, and, when more than one of the switches is closed, the associated accumulators are connected in series to supply the motor. The switches 1a-4a are normally-closed and are operated by solenoids 1d-4d controlled by micro-switches 1b-4b connected to a constant voltage source 6. A normally-open switch 8 in the motor circuit is controlled by a solenoid in series with a further micro-switch 4 and a safety toggle switch 5. Actuation of a single control lever causes a cam to close the switch 4 initially so that the motor receives full voltage, and then the switches 16-4b are closed in turn to reduce the voltage as required. The source 6 has a control switch 7, and draws its current from the accumulators.
Patent GB-1241218-A (GB)
Title: Stable solutions of substituted sodium aluminium hydrides
IPC: B01J31/14
Filed: 1968-10-21
Abstract: 1,241,218. Substituted sodium aluminium hydride solutions. CESKOSLOVENSKA AKADEMIE VED. 21 Oct., 1968 [20 Oct., 1967], No. 49809/68. Heading C2C. A reducing or dehalogenating agent or catalyst, comprises a solution, in an organic solvent selected from aromatic hydrocarbons and ethers, of a substituted sodium aluminium hydride of the general formula NaAlH x Q 4-x , wherein x is either 1 or 2 and Q is a residue derived by splitting off the active hydrogen atom from the hydroxylic group of a monohydric alcohol containing at least one etheric group or an amino group, said alcohol being selected from: (1) Tetrahydrofurfuryl alcohol; (2) Tetrahydropyran-2-yl methanol; (3) Monoalkyl ethers of ethylene glycol of the formula HO.CH 2 CH 2 .0R<SP>1</SP>, wherein R<SP>1</SP> is an alkyl group having from 1 to 4 carbon atoms; (4) Monoaryl ethers of ethylene glycol, of the formula HO.CH 2 CH 2 OR, wherein R is a monocyclic aryl group having from 6 to 8 carbon atoms (5) Monoalkyl ethers of poly-(ethyleneglycols) of the formula HO(CH 2 CH 2 O) n R<SP>1</SP>, wherein n is an integer within the range from 2 to 4 and R<SP>1</SP> has the same meaning as above; (6) Monoaryl ethers of poly-(ethyleneglycols) of the formula HO(CH 2 CH 2 O) n R, wherein n and R have the same meaning as above; (7) Ether alcohols of the formula (8) Ether alcohols of the formula (9) Amino alcohols of formula R<SP>1</SP>R<SP>11</SP>NCH 2 CH 2 - OH, where R<SP>1</SP> and R<SP>11</SP> are C 1 _ 4  alkyl.
Patent GB-1529234-A (GB)
Title: Slide dampers
IPC: F16K27/04
Filed: 1975-12-04
Abstract: 1529234 Valves HERMANN RAPPOLD & CO GmbH 4 Dec 1975 [5 Dec 1974] 49847/75 Heading F2V [Also in Division F4] A slide damper for a gas duct has a diaphragm closure plate 19 that can be moved from an open position outside the damper housing 1 (Fig. 6) through an opening 35 in the housing into a shut position inside the housing (Fig. 7). A plate 71 operated by a shaft 74 can open or seal the opening 35. The damper housing has a fixed seating 6 and a movable seating 7 which is displaceable in the axial direction of the gas duct, and in the open position of the slide damper is maintained in direct contact with the seating 6 by peripheral springs (14), Fig. 4 (not shown). The movable seating can be withdrawn from the fixed seating by hydraulic actuating cylinder (53), Figs. 1 and 2 (not shown). With the slide damper open the chamber 50 is closed by the plate 71. Gas escaping from seatings 6 and 7 may be allowed to build up to give a pressure balance with the interior of the gas duct or may be extracted by a fan via connections (51), Fig. 2 (not shown). Alternatively the chamber 50 may be pressurized by an inert gas. To shut the gas duct, the opening 35 is uncovered and the movable seating 7 retracted and the slide damper conveyed through the opening 35 between the seatings 6 and 7. Finally the seating 7 is pressed by the peripheral springs against the slide damper. The opening 35 remains uncovered to prevent any build up of pressure in the chamber 50. In a further embodiment the opening 35 is closed by an hydraulically actuated sliding plate (36), Fig. 4 (not shown).
Patent GB-1278008-A (GB)
Title: Stripper guide located at the exit of a planetary mill
IPC: B21C47/34
Filed: 1970-10-20
Abstract: 1278008 Rolling mills ISHIKAWAJIMAHARIMA JUKOGYO KK and DAIDO SEIKO KK 20 Oct 1970 [20 Oct 1969] 49852/70 Heading B3M A stripper guide, which is mounted on the outlet side of a planetary rolling mill, prevents rolled strip 9 from becoming entangled in the rolls 2 of the mill. The guide includes a plate spring 6 attached to a support 5 extending between the chocks 4 of the mill. The spring is arranged to extend within the outer envelope 8 of the rolls 2, so that the spring is pressed outwardly each time a roll passes it. In an alternative form (Fig. 6, not shown) a plate is attached to the free end of the spring, the plate extending between a pair of adjacent rolls without clearance. A similar stripper guide may be provided for both of the roller assemblies of the mill.
Patent GB-1353218-A (GB)
Title: Hypodermic syringe having an aspiration device
IPC: A61M5/24
Filed: 1971-10-28
Abstract: 1353218 Hypodermic syringes M WOELM 28 Oct 1971 [29 Oct 1970 22 April 1971] 50046/71 Heading A5R A hypodermic syringe comprises a piston rod 24, a spring 44, an operating lever 60, a slide 40 having a frusto-conical bore 48 and slidable on the piston rod, and a clutch in the form of balls 52 which, when the lever 60 is operated to aspirate body fluid (Fig. 6), become wedged in the bore 48 of the slide 40 due to the action of resilient elements 56 to lock the slide and the rod 24 together. When the operating lever 60 is released the spring 44 urges the slide 40 downwardly (as viewed) and the clutch is disengaged by the balls coming to rest against an annular shoulder 58 (Fig. 5) so that the piston rod can be operated independently of the lever 60. The lever 60 may extend on both sides of the piston rod and engage a fixed abutment on the other side of the housing 38 from the gripping end of the lever. Instead of the resilient elements 56, a further compression spring may be provided., A housing (8) may accommodate a disposable ampoule, or a refillable cylinder may alternatively be provided (Figs. I and 2, not shown).
Patent GB-1204548-A (GB)
Title: Ferrous metal product useful as a precipitant and process of manufacturing it
Inventor: ZIMMERLEY STUART RAYMOND
IPC: C22C38/00
Filed: 1967-11-03
Abstract: 1,204,548. Fe-P alloy; extracting copper. KENNECOTT COPPER CORP. Nov.3, 1967 No.50166/67. Headings C7A and C7D. A ferrous metal product, useful as a precipitant for Cu values in solution, is in the form of a mass of discrete and particulate fragments of metallic iron-base alloy consisting, except for impurities, of metallic Fe, and 0À6 to 4% by weight of P to make the metal brittle and easily fragmented. The product may contain not more than 0À3% by weight of Si as impurity. The fragmented metal may be made by melting metallic Fe, supplying sufficient P thereto, solidifying the molten metal and breaking the solidified metal. The Fe may be scrap iron (almost entirely steel) or pig iron. The P may be supplied by ferrophosphorous or by phosphate rock with coke as a reducing agent. The melting may be carried out in a foundry cupola or in an electric furnace. The solidified metal, e.g. slabs, chips or plates, may be fragmented by impact crushing, e.g. in a hammer mill, and a final crushing in a rod mill.
Patent GB-1188128-A (GB)
Title: Improvements in High Signal-to-Noise Fluid Amplifier
IPC: F15C5/00
Filed: 1967-07-26
Abstract: 1,188,128. Fluid switches. GENERAL ELECTRIC CO. 26 July, 1967 [25 Aug., 1966], No. 50298/69. Divided out of 1,188,127. Heading G4P. [Also in Division G3] The cavities of a pure fluid digital or analogue amplifier have a rough surface to improve its signal to noise ratio. The amplifier has a power fluid inlet P s , control fluid inlets P c1 , P c2 , controlled fluid outlets P o1 , P o2  and vent orifices 18-22. The lower layer of the residual sandwich construction is coated with aluminium oxide particles having a diameter less than one tenth of the width of power nozzle 11. The specification sets out optimum dimensions for the various parts of the amplifier.