baber/WOPTO huggingface dataset:
Patent GB-1066261-A (GB)
Title: Photographic materials
Inventor: CHATT JOSEPH
IPC: G03C1/34
Filed: 1964-01-14
Abstract: Sodium tris-(4-methyl phenyl) phosphine tetrasulphonate is prepared by reacting tris-(4methyl-phenyl) phosphine with oleum and pouring the cooled reaction mixture into ethanol containing dissolved sodium. Similarly sodium monophenyl bis - (4 - chlorophenyl) - phosphine tetrasulphonate is prepared from phenyl-bis -(4-chlorophenyl)-phosphine.
Patent GB-568726-A (GB)
Title: Process and apparatus for concentrating solutions
IPC: B01D3/14
Filed: 1943-02-02
Abstract: Solutions, e.g. sugar solutions, fruit juices, milk, blood latex, vitamin concentrates, &c. are concentrated by passage down tubular members comprising hydrophilic colloidal membranes made of synthetic resins, e.g. polyvinyl resins, chloroprene, nylon, chlorinated rubber or cellulose derivatives, e.g. cellulose esters or ethers.
Patent GB-787447-A (GB)
Title: Improvements in filters
IPC: B01D29/21
Filed: 1956-01-18
Abstract: 787,447. Filters for liquids. BENDIX AVIATION CORPORATION. Jan. 18, 1956 [March 16, 1955], No. 1738/56. Class 46. In an impregnated paper &c. filter having a head 10 with inlet and outlet ports 12, 14 respectively, a cylindrical filter element 40, formed with longitudinally pleated walls, seats on the head 10 about an outlet port 22 and is secured there by a bowl 20 containing it and projecting into a recess 24 in the head to clamp against the head an annular flange 56 on a member 48 adapted to receive and seal the end of the filter element. A central passage 49 in the receiving member 48 connects the inside of the filter element 40 with the outlet port 14 and a spring 44 within the element prevents its collapse. Orifices 58 in or recesses between tongues on the flange 56 open the space around the element to the inlet port 12. The receiving member 48 engages the head 10 by a neck 52 which is an easy fit in the port 22 to make force unnecessary in fitting the filter element into place.
Patent GB-752221-A (GB)
Title: A method and apparatus for forming closed ends on tubes of plastic material
Inventor: BAEHR MICHEL
IPC: C08L25/04
Filed: 1954-01-21
Abstract: 752,221. Heating plastics electrically. TUBOPHANE. Jan. 21, 1954, No. 1859/54. Class 39(3). [Also in Groups V and VIII] A tube made from plastic material is placed on a mandrel 2 so that it projects by an amount 9, Fig. 2, which is pressed down by a heated cup-shaped tool 15 to form a rudimentary tube end which, after being cooled to stabilise the material, is brought under an electrode in a high frequency circuit (see Group V). The electrode is shaped according to the required tube end shape, and dielectric loss heating smooths the end of the tube and fuses the material tobether. The electrode may incorporate a condenser, Fig. 10, to intensify the heating effect, which may comprise thin layers 27 of brass and cellulose acetate retained by a screwed member 25 in a. structure screwed on a base 18 provided with plugs 36 for insertion. into the holes 37 of a metal plate connected to a source of high frequency current, enabling easy replacement of the condenser. In an installation as shown in Fig. 11 a rotatable table 1 brings mandrels carrying tubes underneath a shaping tool 15, heated by electrical resistance and carried by a sliding arm which is lowered by the depression of a pedal 11. The table is then rotated to a position when electrodes 26 are lowered on the preformed tube end by further depression of the pedal.
Patent GB-843698-A (GB)
Title: Production of aromatic carboxylic acids
Inventor: O'NEILL WILLIAM ALEXANDER
IPC: C07C51/265
Filed: 1957-01-18
Abstract: The invention comprises a process for the production of aromatic carboxylic acids, by the oxidation of alkyl-substituted aromatic compounds, in a liquid medium which is stable under the oxidation conditions used, by means of molecular oxygen in the presence of bromine or a bromine containing substance and, if desired in the presence of an oxidation catalyst, wherein the bromine is recovered from the off gases and water which are removed from the reaction vessel, and if desired re-used in a further oxidation process.  Any further additional bromine required in order to maintain the desired bromine content of the reaction mixture may be added at any time. The bromine may be recovered by passing the off-gases and the water removed from the reaction vessel to an alkaline scrubbing tower or towers, treating the contents of the tower with chlorine and then cooling to condense the liberated bromine.  The oxidation may be carried out at atmospheric or superatmospheric pressure and at an elevated temperature.  The bromine may be used as such or e.g. as hydrogen bromide, A metallic bromide or an organic bromide.  The bromide is preferably present in an ionic form.  The liquid medium may be provided by acetic, propionic or benzoic acid.  Suitable oxidation catalysts which may be present are metals, metal oxides or metal salts e.g. manganese and/or cobalt bromide, or manganese and/or cobalt acetate.  In the latter case hydrogen, sodium ammonium an alkyl or an aryl-alkyl bromide should also be present.  An example is given of the oxidation of p-xylene to terephthalic acid, wherein the bromine is recovered is recycled to p-xylene feed. Specification 833,438 is referred to.
Patent GB-1530233-A (GB)
Title: Endoscopes
IPC: A61B17/32
Filed: 1977-01-18
Abstract: 1530233 Endoscope with stricture removing blade RICHARD WOLF GmbH 18 Jan 1977 [20 Jan 1976] 01964/77 Heading A5R An endoscopic cutting instrument is provided with a first removable inner tube that supports a longitudinally extending and movable knife 12 Fig. 2, for cutting a urinary stricture. The tube can be replaced by a second, longitudinally movable and rotatable inner tube that has an annular knife 25 Fig. 4 whereby rotation and reciprocation of the tube causes the knife to round off any jagged edges of the slit stricture.  When assembled to slit the stricture, Figs. 2, 3 the endoscope comprises an outer barrel 1 having a longitudinally extending slot in its lower wall surface, and is coupled to an inner guide barrel 2 having a cut out 3 by a proximal eccentric ring 4. An inner tubular guide 9a, 9b for an examination telescope 10 and a pressure and traction resistant wire 11 which carries the blade 12, is inserted in the inner barrel 2 and is connected by a bayonet connector 6 to a part 13 connected to a square guide 14 through which the guide 9, 9a extends for connection with a bayonet connector 15, itself connectible to a tubular member 16 to which the examination telescope 10 and an eye-piece 17 are connected. The blade 12 is connected by the longitudinally extending wire 11 to a slide 19 which can be slid on the guide 14 by compression of finger and thumb grips 21, 22 against a leaf spring 20. A light source 18 and wash tube 8 are also provided. To assemble the endoscope for use with the annular blade 25, the bayonet connector 6 is released and the guide 9, telescope 10, wire 11 and its blade 12, and the associated parts 13-22 are all withdrawn from the barrel 2. The telescope 10 is then released from the guide 9 by disconnecting the bayonet connector 15 and the second inner tube 23 with its annular blade 25 is then inserted in the inner barrel 2 for reciprocation, and rotation by means of a knob 27 located within a housing 30 that is connected to bayonet 6. The telescope 10 is then inserted in the tube 23 by connection to connector 32. The cutting edge of the blade 25 is exposed by the cut out 3 during rotation and reciprocation whilst the longitudinal slit of the outer barrel allows a catheter to replace the interiorily contained parts once surgery is complete. Finally the barrels 1, 2 are removed to leave only the catheter remaining.
Patent GB-191622-A (GB)
Title: Improvements in or relating to reversing valves for regenerative gas furnaces and the like
IPC: C10J3/24
Filed: 1922-01-23
Abstract: 191,622. Rutherford, T. A., and Pickles, H. J. Jan. 23, 1922. Valves, reversing and like.-A reversing-valve of the pivoted-hood type carried by four rocking- arms b mounted on shafts c is counterbalanced by weights f connected to arms e secured to extensions of the shafts c on each side of the valve casing.
Patent GB-799274-A (GB)
Title: Improvements in and relating to steam generators
IPC: F22B29/02
Filed: 1955-01-24
Abstract: 799,274. Water-tube boilers. ROSSI, G. Jan. 24, 1955 [Jan. 26, 1954]. No. 2082/55. Class 123(2) A water-tube boiler comprises a steam and water drum B from the bottom of which extend the downcomer limbs of a number of tube loops A, the loops being arranged in side-by-side relationship and together forming the boundary surface of a combustion chamber equipped with a burner C, the riser limbs of the tubes reentering the drum at about its horizontal diameter. A feed water pipe 2 discharges water downwardly into the downcomer limbs and this, together with the fact that the riser limbs are of greater length than the downcomer limbs and thus receive more heat, ensures a positive water circulation in a predetermined direction as shown by the arrows X as soon as the boiler is started. In a modification, Fig. 10, the drum B is replaced by four interconnected collector headers D<1> from two of which tube loops 12 extend to encircle the combustion chamber E<1> whilst a further series of loops 13 extend from the other headers D' around the loops 12 to form a return pass F<1> around the chamber E<1> for the combustion gases therefrom. In further modifications, the uneven heat absorption rate of the downcomer and riser limbs of the tube loops is achieved by disposing the burners C nearer to the risers, by screening the downcomers with refractory material or by further increasing the heat absorbing surface of the risers by having a single downcomer branching into several riser tubes of smaller diameter or by making the risers of sinuous form.
Patent GB-984921-A (GB)
Title: Improvements in or relating to pistons
Inventor: WILLMER PETER LAWRENCE
IPC: F02F3/02
Filed: 1963-01-17
Abstract: 984,921. Pistons. HEPWORTH & GRANDAGE Ltd. Jan. 3, 1964 [Jan. 17, 1963], No. 2128/63. Heading F2T. In a light alloy piston in which the skirt 5 is partially separated from the head by two transverse slots 1 extending between the gudgeon pin bosses 2 and four slots 9 extend into the skirt, one from each end of the slots 1, and each terminate in an enlargement 10, the skirt is stiffened adjacent each enlargement by a web 12 extending below the enlargement from the adjacent boss 2 towards the piston head. Each web 12 is parallel to a side 11 of its associated enlargement 10 and is at an angle to the centre line of the piston of between 45 degrees and 60 degrees. The bosses 2 are each supported from the crown 4 by two weeks 7 which in a modification, Fig. 5 (not shown), are replaced by a solid pier. A fifth longitudinal slot may be provided in the skirt between the bosses and the upper end of the skirt may be stiffened by internal crescent-shaped webs.
Patent GB-571643-A (GB)
Title: Improvements in or relating to hose or pipe couplings
IPC: F16L37/42
Filed: 1944-02-05
Abstract: 571,643. Pipe couplings. TURNER, H., and BROWN, T. Feb. 5,1944, No. 2147. [Class 99 (i)] A pipe coupling comprises a spring urged catch 21 of tubular form having a pair of opposite lugs 22 by one of which it is pivoted on a pin 24 in a plane at right angles to the axis of the socket 19, the catch engaging a shoulder 10 on the spigot 9 which engages the gasket 38 and opens the valve 35. The catch is released by the operation of a sleeve 25. The socket has a conical guiding surface 30 for the spigot which is a fit in the bore 31, the latter having ports for venting the socket during release. The spigot has two conical portions 13, 15 having a common base 14 which is a fit within the bore of the catch and is located adjacent its pivot in the coupled position. The conical portions of the spigot have line contact with opposite sides of the bore of the catch and the end of the latter has an inclined face 40 which is parallel to the shoulder 10 in the coupled position.
Patent GB-232701-A (GB)
Title: Improvements in or relating to dimming devices for electric vehicle lamps
IPC: B60Q1/14
Filed: 1924-01-26
Abstract: 232,701. Williams, F., and Dimmers, Ltd. Jan. 26, 1924. Lighting systems. - Dimming devices for motor vehicle lamps comprise as separate units a sectional resisitance mounted for protection in the bonnet of the car and a totally enclosed regulating switch mounted in an accessible position on the dash-board or steering wheel and electrically connected with the resistance for progressively cutting resistance in and out of the lamp circuit. The circuit arrangements are shown in Fig. 9. The resistance is of known form comprising graphite blocks insulated from a holder and having metal contact plates. The regulating switch, Fig. 6, consists of a base 22 with a number of contacts engaged step by step by a contact arm 26, the other end of which is bent into cylindrical form to constitute a bearing for a roller contact engaging a fixed plate contact which has recesses corresponding to the switching positions of the contact arm.
Patent GB-510157-A (GB)
Title: Process of manufacturing moulded articles
IPC: C08L89/04
Filed: 1938-01-24
Abstract: 510,157. Indiarubber compositions. HULLEN, J. VAN, and WELLMANN, W., (trading as NIEDERRHEINISCHE MASCHINENFABRIK BECKER & VAN HULLEN), and I. G. FARBENINDUSTRIE AKT.-GES. Jan. 24, 1938, No. 2236. Convention date, Oct. 28, 1937. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 26, 1938.] [Class 70] [Also in Group IV] The Specification as open to inspection under Sect. 91 includes an example in which gaboon shavings are mixed with aqueous rubber emulsion (natural latex), to which may be added vulcanisation accelerators, and the mixture is hot-pressed to form a slab. This subject-matter does not appear in the Specification as accepted.
Patent GB-739758-A (GB)
Title: Improvements in draw-out type electric switchgear
IPC: H02B11/127
Filed: 1954-01-25
Abstract: 739,758. Switchgear structures. ALLISCHALMERS MANUFACTURING CO. Jan. 25, 1954 [Oct. 6, 1953], No. 2240/54. Class 38(5). In draw-out type switchgear comprising a cubicle 10 enclosing a switch 20 mounted on a supporting member 24 carried by a wheeled base structure 23, a shielding panel 25 is pivoted on the member 24 and is biased by a spring 32 against the switch 20 when the switch is withdrawn into its isolated position. As the switch is moved into the position shown in Fig. 1, where the isolating contacts 18, 19 are engaged, one limb of a U-shaped member. 2 7 on the panel 25 engages in a U-shaped member 20 fixed in the cubicle and causes the panel 25 to tilt into the inclined position shown, where the edges of the panel embed themselves in resilient material carried by inclined rails 32<SP>1</SP> to seal the switch off from the compartment 15. The hinged door 21 of the cubicle may be closed with the switch in its isolated position, the panel then being vertical.
Patent GB-1007231-A (GB)
Title: Electrical timing circuit
IPC: H03K5/13
Filed: 1964-01-17
Abstract: 1,007,231. Transistor time delay circuits. ROBOTRON CORPORATION. Jan. 17, 1964 [Feb. 8, 1963], No. 2266/64. Heading H3T. [Also in Division H2] A timing circuit suitable for use in the welder described in Specification 1,006,923 comprises a storage circuit chargeable to a potential which allows a triggering signal to render conducting a " valve" connected to the storage circuit, conduction of the " valve " causing a reduction of the voltage applied by the storage circuit to the " valve ", means being provided for preventing the voltage falling below a predetermined value. When switch 14 is opened a clamping circuit through diode 72 is rendered ineffective and a capacitor 27 commences to charge. Simultaneously a capacitor 24 charges and charging continues until a voltage applied to a clamping diode 31 is reached. The voltage supplied from the capacitor to the emitter of a double base diode 46 is then sufficient to allow the rest pulse from a pulse generator 51 to D.B. diode conductive. The resulting discharge of the capacitor produces a pulse at 47 which passes via lead 77 to change over bi-stable circuit 56, 57 and 56a, 57a so making transistors 56 and 56a conduct. These two transistors feed control voltages to leads connected to points 63 and 63a, transistor 56 also serving to clamp the charging potential at the upper terminal of timing capacitor 27 at a low value. The bi-stable circuits may be reset by operating a switch 88. A diode clamp 42 limits the discharge of capacitor 24 and thus sets the minimum potential for the emitter of the D.B. diode. Capacitor 27, which discharges is a lower potential than 24 and is provided to ensure that the D.B. diode remains conductive until 27 has discharged to the required level.
Patent GB-450477-A (GB)
Title: Improvements relating to vending machines
IPC: G07F9/10
Filed: 1935-01-23
Abstract: 450,477. Refrigerators. TURNER & NEWALL, Ltd., Woodland Road, Spotland, Rochdale, and SMITH, J. W., 27, Belle Vue Avenue, Gosforth, Newcastle-on-Tyne. Jan. 23, 1935, No. 2272. [Class 29] A container 9 of compressed or liquefied carbon dioxide or other gas, with an adjustable delivery valve 10, is placed within a coinfreed ice-cream &c. cabinet 2 so that a stream of gas issues from it continuously and prevents the entrance of moisture laden air into the cabinet. The container is preferably placed near the delivery door 7 and rejected-coin slot 8, and the gas escapes therefrom to the atmosphere.
Patent GB-880536-A (GB)
Title: Room unit for air conditioning
IPC: F24F11/76
Filed: 1960-01-22
Abstract: 880,536. Ventilation. SVENSKA FLAKTFABRIKEN A.B. Jan. 22, 1960 [Jan. 26, 1959], No. 2422/60. Class 137 A room unit for air conditioning comprises a housing 1 into which primary pre-treated air is supplied through a duct 2, a central passage 8 and a nozzle 3 which forcibly ejects the primary air so that secondary air from the room is drawn through openings 5a, 5b to pass through heat exchangers 4a, 4b one on each side of the central passage before mixing with the primary air to be passed to the room through opening 7 in the top of the housing. The passage of the secondary air through the heat exchangers is controlled by pivoted dampers 9a, 9b which are arranged to operate in sequence as a valve controlling the heating or cooling medium flowing through the heat exchangers is operated. In their closed positions the dampers allow secondary air to pass through openings 6a, 6b in the side walls of the housing. A volume flow governor 27 and a damper 29 control the primary air influx. The passages both for the primary air and the mixture may be formed as Venturis 37, 38. The dampers 9a, 9b are operated by the movement of members having forked ends engaging rolls attached to the dampers, the members being moved by cam rolls following grooves in a cylinder which is rotated as the valve controlling the exchange medium is operated by turning a rod projecting through the top of the unit. The primary air damper is operated through a plate and rod linkage from the top of the unit.
Patent GB-697649-A (GB)
Title: Improvements relating to power driven wringers
Inventor: METCALFE CLIFFORD
IPC: D06F45/00
Filed: 1950-01-31
Abstract: 697,649. Wringers. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Jan. 31, 1951. [Jan. 31, 1950] No. 2448/50. Class 138 (ii). In a power driven wringer comprising rollers 3, 6, one of which is displaceable towards and away from the other, a handle or pedal (not shown) is coupled to the displaceable roller, whereby the rollers can be urged together during a wringing operation solely by the application thereto of a force exerted and sustained by the operator. One or more springs, Fig. 2, (not shown), serve to bias the rollers apart. The rollers 3, 6 are mounted on arms 4, 7 which are pivotally connected at 8, the arm 7 being connected by a link 15 to a pedal (not shown). The arms 4 may be pivoted at 5 to arms 2 mounted on a washing machine 1 so that the wringer may be swung over to hang from the pivots 5 when not in use. The wringer may be driven by the washing machine motor through gearing and a dog-clutch, Fig 3 (not shown), which is adapted to be engaged when the wringer is moved to its raised or operative position The rollers 3, 6 may be provided with gear wheels which engage when the upper roller 6 is lowered, so that both rollers are then positively driven. In a modification (not shown) the lower roller is connected to the washing machine motor by a chain and sprocket coupling. Specification 24691/14, [Class 138 (ii)], is referred to.
Patent GB-103022-A (GB)
Title: Portable and Non-submersible Apparatus for Walking on the Water.
Inventor: RISSO LUIGI
IPC: B63B34/56
Filed: 1916-02-18
Abstract: 103,022. Risso, L. Feb. 18, 1916 Rafts.-A portable non-submersible apparatus for walking on water comprises two collapsible floats 5 linked together at 20, a paddle wheel being arranged between them. Each float consists of a central screwed spindle 1 connected by hinged ribs 6 to rods 2 pivoted to the end pieces 3, and surrounded by impermeable cloth. A screw 8 at each end serves to collapse or extend the float, which is fitted with a recess 9 to receive one of the feet of the person driving the vessel.
Patent GB-1513221-A (GB)
Title: Production of hexanitrostilbene
IPC: C07C205/06
Filed: 1976-01-22
Abstract: 1513221 Preparing hexanitrostilbene DEFENCE SECRETARY OF STATE FOR 21 Jan 1977 [22 Jan 1976] 02501/76 Heading C2C 2,2<SP>1</SP>,4,4<SP>1</SP>,6,6<SP>1</SP> - Hexanitrostilbene is produced by reacting 2,4,6-trinitrotoluene with an alkali metal or alkaline earth metal hypochlorite in an organic solvent and subsequently adding a nitrogeneous base to the reaction mixture. The solvent may be a mixture of THF with methanol or 2-methoxyethanol. The base may be ammonia or an organic amine, which is usually added as the amine hydrochloride, and is particularly Me 3 N or Et 3 N.
Patent GB-733215-A (GB)
Title: Bronze alloys
Inventor: GARDNER ARTHUR GEORGE
IPC: B22F9/22
Filed: 1953-01-29
Abstract: A bronze alloy is made from copper and at least sufficient tin to produce an alloy having a proportion of delta phase by simultaneous reduction of a powder mixture containing at least one of the constituents in the oxide form the reduction taking place below the melting point of the resulting alloy.  The alloy may contain 10-30 per cent of tin which may be made by placing the starting materials in loosely packed condition in a container and heating in a reducing atmosphere for about two hours at about 500 DEG  C.  The powdered alloy may be used as a binder in grinding wheels for diamond or other abrasive particles.
Patent GB-603713-A (GB)
Title: Improved fastener device
IPC: F16B19/10
Filed: 1945-02-01
Abstract: 603,713. Bolts nuts ; bolt-hole bushes. MARRIOTT, C. W., and COYNE, J. F. Feb. 1, 1945, No. 2554. [Class 89 (i)] Nut and bolt devices, usable where one side of the work is inaccessible, comprise nuts with skirts 7b, Fig. 2, split for resilience and sleeves 8b on the bolts with polygonal &c. flanges 8a for preventing rotation during tightening of the bolt. The edges 8c of the sleeves are bevelled so that after inserting from the top as shown in the Figure, tightening of the bolts causes expansion of the skirts 7b so that the edges engage the underside of the plate B. The bevel surface may be serrated &c. to prevent the nut from rotating. The bevelled ends of the sleeves 8b may be split to close on the bolt for locking. In a modification, the skirts form part of the bolt heads and ordinary nuts are employed in contact with the flanges 8a. Specifications 343,992 and 436,238 are referred to.