baber/WOPTO huggingface dataset:
Patent GB-1144471-A (GB)
Title: Improved fencing and like panelling
IPC: E04F11/18
Filed: 1966-03-28
Abstract: 1,144,471. Fencing. B. J. ENNIS. 26 June, 1967 [28 March, 1966], No. 13532/66. Heading E1B. A fence comprising a corrugated metal panel 1, a top rail 2, and a bottom rail 3 having transverse slots into which the lower edges of the transverse parts of the corrugations fit, supported between a pair of twopart metal parts 4, the edge of the panel and ears at the ends of the top and bottom rails being gripped between the two parts of each post by the tightening of bolts 12. Each part of a two part post 4 is triangular, one part being fitted with a series of brackets having captive nuts and the other being formed with holes through which the fixing bolts pass.
Patent GB-135481-A (GB)
IPC: G01F23/42
Abstract: 135,481. Parenthou, E. H. Sept. 6, 1918, [Convention date]. Indicators actuated by floats.-In apparatus for indicating on a single dial the quantities of liquid in two receptacles, for example, the petrol tanks of a flying-machine, a float d in each receptacle is suspended by a cord e passing over a pulley f integral with a smaller pulley g, around which is wound a cord connected to one of the drums k in the indicator. The floats are surrounded by guide cylinders or tubes a. Each indicator drum is mounted freely on its axis and carries a pointer m moving over separate portions of the dial. The drums are connected together by a circular spring o which tends to maintain the pointers at their maximum indications, the weights of the floats moving the pointers to their zero indications as the floats fall.
Patent GB-495114-A (GB)
Title: Improvements in water tube steam boilers
IPC: F22B21/34
Filed: 1937-05-14
Abstract: 495,114. Water tube steam boilers. BABCOCK & WILCOX, Ltd. May 14, 1937, No. 13612. Convention date, May 28, 1936. [Class 123 (ii)] Tubes 4 on the side walls of the furnace are bent to form superposed groups of tube loops across the path of the furnace gases and to enclose the gas outlet flue 5. The tubes are connected to headers 11, 12 at the sides of the grate and to an upper central header 6, which is connected by tubes 7, 8 to a transverse drum.
Patent GB-1477972-A (GB)
Title: Adjustable head support
IPC: A47C7/38
Filed: 1975-04-04
Abstract: 1477972 Adjustable head rests EMDA FABRIK ELEKTRO-MEDIZINISCHER UND DENTALER APPARATE GEORG HARTMAN GmbH & CO KG 4 April 1975 [8 April 1974] 13820/75 Heading A4J An adjustable headrest 4 is held in adjusted position relative to a support 3, pivotally secured to a backrest 1, by engagement of a stay 10 in one of a plurality of notches on a strip 11 secured to the support. Preferably, a pin 8 inter-connects the free ends of a pair of stays 10 and is slidably received in two slots 7 of a U-sectioned release lever 5 pivotally secured to the support and moveable on depression of a push-button 14 to release the pin from the strip 11.
Patent GB-255797-A (GB)
Title: Improvements in or relating to control valves for use in fluid pressure apparatus onvehicles
IPC: B60T15/06
Filed: 1925-03-20
Abstract: 255,797. Peters & Co., Ltd., G. D., and Porter, A. S. March 20, 1925. Patent abandoned on opposition. Locking catches.- The notched segment 11 engageable by a spring pressed member 5 on the handle 3 of a driver's brake valve or control valve for other fluid-pressure apparatus on vehicles to indicate to the operator the position of the handle, and it may be also for holding it in position, is formed separate from the valve casing 1 so that it may be readily renewed when worn and is made of hard or case-hardened steel or other metal having at its wearing surface a degree of hardness equal to that of hard steel. The brake valve shown is suitable for use in brake apparatus described in Specification 253,613, [Class 103 (i), Brakes &c.].
Patent GB-677587-A (GB)
Title: Travelling-wave electron discharge tube
IPC: H01J25/44
Filed: 1950-06-02
Abstract: 677,587. Travelling-wave tubes. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. June 2, 1950 [June 10, 1949], No. 13880/50. Class 39 (i). In a travelling-wave tube in which the beam moves in crossed electrostatic and magnetic fields between the conductors 1, 2, Fig. 1a, of a retardation line, the beam is caused to impinge at the end of its path upon a collector 6 over a surface larger than the transverse section of the beam so as to increase the heat dissipation of the tube. The surface of the collector is substantially parallel to the direction of the beam, and is situated opposite one conductor of the retardation line. The distance between the collector and the opposite line conductor may decrease in the direction of the beam. The collector 6 may taper towards the line conductor 2, Fig. 1a, or the line conductor may be inclined to the collector, or both may taper. In addition, or with a constant distance between the collector and the opposite line conductor, the magnetic field may decrease in the neighbourhood of the collector. In another embodiment, Fig. 3d, the collector 6 and the conductor 2 are curved in the same sense, whilst gradually approaching one another. The travelling wave tube may be linear, or the electrodes may be bent round in a circle. Specifications 663,728 and 677,536 are referred to.
Patent GB-543652-A (GB)
Title: Improvements in the production of metallic magnesium
IPC: C22B26/22
Filed: 1940-09-05
Abstract: 543,652. Magnesium. ABBEY, A. (Dow Chemical Co.). Sept. 5, 1940, No. 13904. [Class 82 (i)] Magnesium is obtained by heating to about 1300-1500‹C. in an inert atmosphere and preferably under reduced pressure a mixture comprising magnesia, lime, and a reducing agent containing silicon or aluminium or both, the proportions of the ingredients of the charge being such that the reducing agent is substantially equivalent to the magnesia and that the slag formed comprises 30-53 per cent. of lime, 36-50 per cent. of silica, and 2-25 per cent. of alumina. The magnesia and lime may be present in the charge as calcined dolomite, and the charge may also include silica, alumina, and less than 5 per cent. of fluorspar. The reducing agent may be silicon, aluminium, or mixtures thereof, or ferro-silicon, ferro-aluminium, or alumino-silicon.
Patent GB-680278-A (GB)
Title: Improvements relating to mixing apparatus
IPC: B01F5/06
Filed: 1951-06-12
Abstract: <PICT:0680278/III/1> In an apparatus for continuously adding dispersions to flowing liquids and homogenizing the mixtures formed e.g. in the artificial silk industry, the liquid is introduced under pressure into an inlet 6 and the materials with which it is to be mixed are introduced through a nozzle 7, mixing taking place in a casing 1 by the action of rotating blades 8 carried by a shaft 4, the mixture so formed passing between a fixed perforated plate 3 and a rotatable perforated disc 5 also on the shaft 4, whereby it is subjected to a grinding action.  The perforations in the plate and disc are arranged alternately in concentric circles so that the holes in the two never coincide.  The distance between the plate and disc may be adjustable.  The mixed material is finally conveyed to a mixing tube 2 by stripping blades 9.  Blades or vanes 10 mounted on the shaft 4 in the tube 2 press the material in a direction opposite to its direction of flow, whereby a still more intensive mixture is effected.
Patent GB-934027-A (GB)
Title: Improvements in or relating to the production of high-boiling esters
IPC: C07C29/80
Filed: 1962-04-11
Abstract: In the production of high-boiling esters by reacting an acid, e.g. phthalic or adipic acid, with a stoichiometric excess of a monohydric primary alcohol having at least four carbon atoms per molecule, the excess alcohol is separated from the esterified product by stripping it with steam at superatmospheric pressure. In an example, octyl alcohol is separated from octyl phthalate by steam stripping in a distillation column maintained at a gauge pressure of 2 kg./sq. cm. The vapours leaving the head of the column have a temperature of 125 DEG C. and may be used to raise steam, required for other units of the esterification plant. Other examples relate to the separation of octyl alcohol from octyl adipate, octyl sebacate and octyl azelate, and the separation of decyl alcohol from decyl phthalate.  The specification also mentions the separation of the hexyl alcohols, cyclohexanol, the methylcyclohexanols, benzyl alcohols, and tetrahydrofurfuryl alcohol from their esters.
Patent GB-514634-A (GB)
Title: Improvements in and relating to the mounting on an aircraft of accessory apparatus to be driven from the or a propelling engine
IPC: B64D27/04
Filed: 1938-05-11
Abstract: 514,634. Power driven accessories. AIREQUIPEMENT. May 11. 1938, No. 14026.. Convention date, May 18, 1937. [Class 4] The mounting of all or, part of the accessory apparatus not directly necessary for the operation of the aero engine is effected on the outside . of a multi-drive gear-box fixed on. the aeroplane structure independently of the engine from which the gear-box is driven through a cardan joint allowing oscillations of the engine relative to the gear-box.' In one form, an electric 'generator 1, a high-pressure aircompresser 2, a medium-pressure air-compresser symmetrically placed with compresser2, a vacuum pump 4, also serving as a low-pressure compressor and side by side with it a hydraulic pump supplying fluid for operation of the undercarriage jacks, . are mounted on a box 6 mounted on the aircraft structure. The aeroengine drives a shaft 27, Fig. 4, which through bevel-gears 26, 29 drives a shaft 28 connected to a shaft 12 drives by a ball joint 31 and splines 32 permitting movement about the joint. The shaft 12 through splines permitting angular and axial movement and a friction coupling forming a torque-limiting device 19, Fig. 3, a shaft 15 which drives the accessories. The generator is driven through bevel gears 18, 18a, and a torquelimiting device 34 adjusted so that it only transmits the maximum torque for normally driving the generator. The shaft 15 drives two gear-wheel pumps 36 one of., which lubricates the gear-box and accessories requiring lubrication and the other pumps lubricant from the box to a reservoir. The shaft 12 is resilient.. In a modification, the shaft 12 is splined for freedom of axial movement to a ball-joint 39, Fig. 6, from which the drive is transmitted through splines 40 to the torque limiting device . A protective casing 42 is provided.
Patent GB-1007077-A (GB)
Title: A process and catalyst for the chlorination of hydrocarbons
IPC: C07C17/02
Filed: 1964-04-07
Abstract: In a process for making a dichloromonoolefin, a conjugated diolefin is contacted in the gaseous state and at elevated temperature with a composition comprising a cupric chloride, an alkali metal chloride and a rare earth metal chloride, the composition being supported on a carrier material having a surface area in the range of from 0.1 to 40 m2/gm. and an average pore diameter of at least 300<\>rA.  Specified diolefins are 1 : 3-butadiene, 1 : 3-pentadiene and isoprene.  The process may be effected in a fluidized bed and if desired, after a suitable pretreatment of the catalyst.  Chlorine or hydrogen chloride and air may be present.ALSO:A chlorination catalyst comprises cupric chloride, an alkali metal chloride and a rare earth metal chloride supported on a carrier material having a surface area in the range from 0,1-40 m.2/gm. and an average pore diameter of at least 300 . NiCl, KCl and NaCl are specified.  Preferred rare earth chlorides are Ce and "didymium" chlorides.  Specified carriers are Al2O3 and SiO2. Activation and/or regeneration of the catalyst may be effected by heat treatment in a vacuum or atmosphere of steam, air and/or nitrogen or by using chlorine and/or hydrogen chloride and oxygen.
Patent GB-514742-A (GB)
Title: Improvements in and relating to milking machinery
IPC: A01J5/12
Filed: 1938-05-13
Abstract: 514,742. Cow-milkers. TURNER. Ltd., S., and PLINT, A. F. May 13, 1938, No. 14404. [Class 84] In a pulsator for milking-machines comprising a body or casing having a ported surface enclosing a space continuously communicating with the full vacuum of the system and a vacuum control valve reciprocating over such surface, the movement of the valve is accelerated after the commencement of each stroke by the breaking of a subordinate vacuum open continuously, while operative, to the full degree of vacuum in the system, whereby breaking of such subordinate vacuum is always correctly timed to ensure regular working of the apparatus. As shown, a casing 1, with a nozzle for connection to vacuum and nozzles 16, 18 for connection to the teat cups, is provided with a cylinder 14 in which is fitted a reciprocating piston valve 2. The valve has a reduced part 12 the space 13 around which is always in commnunication with the vacuum nozzle. The valve 12 has discs 10, 11 for engagement with seatings to limit the movement of the valve. The bottom of the valve has a flexible diaphragm 5 clamped between the casing 1 and a chamber 3. The chamber 3 is connected by a pipe 28 and an adjustable orifice 24 to a passage 20 in the casing 1 and a port 21 in the cylinder 14. The upper end of the casing has a cap 7 with perforations 8 open to the atmosphere. The space 27 inside the cap communicates through passages 25 with an annular space 23 above the diaphragm 5, and also communicates, when the valve is raised, with a passage 30 and the nozzle 16. A spring 33 tends to hold the valve in its uppermost position. In this position, nozzle 18 is connected to vacuum through port 17 and space 13, and nozzle 16 is connected to atmosphere through passage 30 and space 27. Chamber 3 is connected to vacuum through passage 28, 24, port 21 and space 13. An annular space 22 is also connected to vacuum through passage 20 and port 21. When the vacuum in chamber 3 is sufficient, the valve 2 is moved downwardly and this movement is accelerated by the breaking of the vacuum in space 22. With the valve in the bottom position the disc 11 engages the seating 6 shutting off atmosphere to nozzle 16. This nozzle and passage 30 are then connected to suction through port 15 and space 13, while chamber 3 is connected to atmosphere through passages 28, 24, 20, spaces 22, 23, and passage 25. Nozzle 18 is also connected to atmosphere through a passage (not shown) connecting the nozzle to space 23. When the vacuum in chamber 3 is sufficiently reduced the spring 33 moves the valve 2 upwardly against the vacuum in passage 30 and an annular space 19, the movement breaking this vacuum and reducing the resistance to the spring so as to accelerate the movement. Specification 324,140, [Class 84], is referred to.
Patent GB-883355-A (GB)
Title: Improvements in or relating to dust-laden air filter installations
IPC: B01D46/04
Filed: 1959-04-28
Abstract: 883,355. Filtering gases. FISCHER, G. April 28, 1959 [May 3, 1958], No. 14412/59. Class 8(2). Shaking to effect cleaning of a plurality of outward flow dust-laden vertical gas filter sleeves 8 of elongated cross-section each secured at their lower open ends to a stationary horizontal frame 6 within a chamber 1 and at their upper closed ends to a movable frame 10 is effected by gyrating said frame 10 by a motor driven eccentric 11 and simultaneously producing reciprocating movements in directions inclined to the plane of the frame 10 using the reaction forces afforded by a plurality of vertical rods 13, only one of which is shown, having spring joint connections 14, 15 with the frame 10 and the side of the chamber 1 respectively. Heavy spacing bars 17 serve to increase the amplitude of vibrations transversely of the wide sides of the sleeves.
Patent GB-436136-A (GB)
Title: Improvements in or relating to starting systems for electric motors or other electric apparatus
IPC: H02P1/02
Filed: 1935-05-17
Abstract: 436,136. Control of D.C. andA.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. May 17, 1935, No. 14504. Convention date, Mav 18, 1934. [Class 38 (iii)] Self reducing resistance 6 is connected in series with an electric motor or similar apparatus 1 to prevent excessive starting current, and a repeated switching - in before the resistance is sufficiently cooled is prevented by automatically rendering inoperative the operating coil 9 of an electromagnetic switch 7 in the main circuit. The coil 9 may be connected in parallel with an additional selfreducing resistance 12 which carries current during the whole of the working period, so that, after the main circuit is opened, the resistance 12 must cool sufficiently to allow an operative current to flow through the coil 9 when the circuit is reclosed. A resistance 13 in the circuit of the resistance 12 is dimensioned so that the resistance 12 cools sufficiently only after the resistance 6 is sufficiently cooled to control the motor 1 effectively. In a modification the self-reducing resistance in the main circuit serves also to control the coil 9. In this arrangement, Fig. 2, not shown, the coil 9 is connected across the self-reducing resistance in the main circuit when the switch 7 is opened, and disconnected therefrom when the switch is closed. The arrangements are applicable to three-phase supplies, and in further modifications, Fig. 3, not shown, the circuit of the coil 9 includes contacts of a thermal switching element heated either by the main current or by the heat of the selfreducing series resistance.
Patent GB-1342058-A (GB)
Title: Device for measuring the intensity of a scanning light beam  by means of a light-conducting rod
IPC: G01N21/89
Filed: 1972-03-28
Abstract: 1342058 Light guides E SICK 28 March 1972 [1 April 1971 11 Oct 1971] 14519/72 Heading G2J [Also in Division G1] In an arrangement wherein light from a linearly scanning beam is appliedto a dectector 13, Fig.2 by internal reflection in a rod 14 placed along the scanned path, uniformity of response is enhanced by a mirror 12 along the side remote from the incident beam in combination with shutters 16a..i which may be individually adjusted by screws 17 Fig. 1. The surface 14 on which light is incident is made matt by grinding or etching to diffuse the light, and an additional diffusing state 25 diffused on its underside may be mounted above but close to the rod. The spacing between the plate 25 and the rod may be varied along its length by inclining the plate to the rod. The apparatus may be used in conjuntion with a laser beam scanning a moving material for defects and may include a filter to select a desired wavelength. A cylindrical lens and mirror may be provided at the end remote from the detector.
Patent GB-1174157-A (GB)
Title: Improvements in and relating to gate valves
Inventor: VISSER JAN CORNELIS
IPC: F16K3/12
Filed: 1967-03-30
Abstract: 1,174,157. Valves. MACHINEFABRIEK EN IJZERGIETERIJ "HOLLAND-BERGEN OP ZOON" N.V. 30 March, 1967, No. 14613/67. Heading F2V. A gate valve has a wedge shaped closure member 4 provided with at least one sealing ring 11 of elastic material located in a groove and adapted to be brought into contact with an annular seat 16 the lower part of which is formed as a groove 17 of downwardly decreasing depth so that the lower part of the sealing ring which projects beyond the lower part of the valve body may be brought into sealing contact with the bottom of the casing 1. The ring 11 is formed at the circumference of a disc 12 held in place by a plate 15 and nuts 14. A nut 6 located in a head 5 on the closure member is engaged by a screwed spindle 3 axially located by a collar 7.
Patent GB-520371-A (GB)
Title: Suction cleaner
IPC: A47L5/28
Filed: 1939-05-16
Abstract: 520,371. Vacuum cleaners and dust bags. REPLOGLE, D. B. May 16, 1939, No. 14618. Convention date, May 16, 1938. [Classes 8(i) and 8(ii)] The dust bag of a vacuum cleaner is enclosed in an internally corrugated casing 10, which permits ready flow of air through the casing from the bag. The casing may also be corrugated externally. The dusty air may be drawn into the dust bag by way of a rotary glass-topped valve 27, either from the floor nozzle through a pipe 16 within or without the casing, or through a hollow handle 25 to which a hose may be attached ; the dust bag may have a flange fitting against an end plate to which the valve is fitted. The floor nozzle is wheeled and fits on to the end of the pipe 16 or an extension 40. The fan and motor 39 are located below the casing, and a disinfecting pad 46, impregnated with liquid and held between gauzes, is located below the bag. The fan casing has lateral air outlets to which blowing extensions may be attached. Lamps 56 may be provided beside the pipe 40. A hood, Fig. 14, has arms 51 and an opening 50 by which it may be fitted over the air outlets 52 and the nozzle outlet pipe ; the hood then encloses the floor tool, and germicide from the pad 46 may be directed on to the floor. The cleaner may rest on the floor tool wheels and on wheels 64 carried by a pivoted bracket, or may be suspended vertically from a wall bracket engaging the handle 25.
Patent GB-710763-A (GB)
Title: Method of making an extended surface heat exchange device or similar composite article
Inventor: DALIN DAVID
IPC: B23K11/00
Filed: 1951-06-20
Abstract: 710,763. Making heat-exchangers. AKTIEBOLAGET SVENSKA MASKINVERKEN. June 20, 1951, No. 14664/51. Classes 83 (2) and 83 (4) Welding; forging.-A method of making an extended surface heat exchanger or similar composite article having a metal base wall and a number of spaced metal rod-like elements welded to said base wall is characterized in that one end of each element has an enlargement and a pointed contact portion projecting from said enlargement said contact portion being placed against the base wall and pressure and electric current applied to effect the welding of the metal of the contact portion being spread over the base wall to the full area of the bottom of the enlargement. Rod-like elements 6, which are to be welded to a tubular or flat base wall 5 each have a flaring skirt 7 and a depending pointed contact portion 8 the latter having substantially the same cross sectional area as the element 6. The area of the bottom of the skirt is between two and four times the cross sectional area of the element. The length L of the contact portion is between 38 per cent and 58 per cent of the element diameter. In operation, the element is grasped in a chuck 9, having a cooling jacket 10, and pressed against the base wall 5 which is supported in a saddle 13. The chuck and saddle are connected to an electrical power source 11 and an electric current is passed between the contact portion and the base wall to effect the welding, the contact portion being spread out over the base wall to the full area of the underside of the skirt 7. The flared skirt, which is engaged by the underside of the chuck, ensures, by its wedge action a good electrical contact between the chuck and the element. The invention is applicable to the welding of such combinations as aluminium to steel, copper to copper and aluminium to aluminium. Specification 673,721 is referred to.