baber/WOPTO huggingface dataset:
Patent GB-827510-A (GB)
Title: Improvements in or relating to valves for controlling the flow of pressure fluids
Inventor: HACKETT WILLIAM
IPC: F16K1/00
Filed: 1957-02-01
Abstract: 827,510. Fluid-actuated valves. LANG PNEUMATIC Ltd. Feb. 3, 1958 [Feb. 1, 1957], No. 3516/57. Class 135. A valve controlling the flow of pressure fluid between a high-pressure source such as an air compressor or storage tank and a place of use, e.g. a pneumatic power cylinder, comprises a piston valve 2 formed with external annular grooves mounting resilient sealing-rings 13, 14, a chamber 9 opening towards an outlet port 5 of a cylinder 1 in which the piston slides and communicating through ports 11 with a space 12 between the rings and an upstanding rim 10 engageable with a seating 8. The cylinder 1 at its inlet end is closed by a cap 3 having a connection 16 with the pressure source. The rings 13, 14 are formed with annular and facing substantially V-shaped recesses. On pressure fluid being supplied to the connection 16, the rim 10 engages the seating 8 and the limb 13b of the ring 13 moves away from the cylinder wall to allow a controlled flow of fluid to the outlet connection 5. On the supply of pressure fluid being cut-off, e.g. by the actuation of an upstream master control valve, the supply pressure is reduced so that the piston valve is unseated and fluid from the cylinder is exhausted to atmosphere through ports 7.
Patent GB-879159-A (GB)
Title: Improvements in or relating to arithmetic units for digital computers
IPC: G06F7/501
Filed: 1959-02-02
Abstract: 879,159. Arithmetic units. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 2, 1959 [Feb. 5, 1958], No. 3592/59. Addition to 876,989. Class 106 (1). The high-speed adder of the parent Specification in which the arithmetic unit is divided into sections each comprising a group of logical adders 6, such as are seen in Fig. 4a, and carry producers 8, all preceded by an input carry producer such as 10 3 , is modified by having the sections 3 1 -3 7  of decreasing size with increasing denomination.
Patent GB-928712-A (GB)
Title: Electric cable comprising an external metal sheath
IPC: H01B7/18
Filed: 1962-01-31
Abstract: 928,712. Cables. COMPAGNIE GENERALE D'ELECTRICITE. Jan. 31, 1962 [Feb. 2, 1961], No. 3639/62. Class 36. An electric cable with metallic sheath is provided with an intercalary insulating cord or tape wound between the insulated core and the sheath of the cable to avoid damage to the insulation during application of the sheath at high temperatures. As shown, Fig. 1, the cable core consists of a number of insulated conductors 1 and is surrounded by further insulation 3 wound in the form of tapes. The intercalary element around the insulation 3 is in the form of a helically wound cord of a material such as nylon, polypropylene or a cellular plastic material, of high thermal resistance. The metal sheath 6 is arranged on the intercalary element, the helical air gap 5 between the sheath 6 and the insulation 3 decreasing the effect of the heated sheath on the insulation 3. If desired, the insulation may be a cord wound around the cable core. Fig. 3 shows a coaxial cable of which the outer conductor comprises the sheath itself, the inner conductor being spaced from the insulating tape 3 by circular spacers 2. Insulating cord 4 separates insulation 3 from sheath 6. The insulation may be omitted and two parallel cords laid directly on the spacers 2. The insulating intercalary elements may be tapes instead of cords having each a longitudinal ridge 7 or bead 8 or sheets folded longitudinally to cover the insulation 3 and having oblique corrugations 9 or multiple ridges 10, on the surface facing the sheath to provide air spaces for heat dissipation (Figs. 5-9, not shown).
Patent GB-214759-A (GB)
Title: Improvements in balancing devices for aircraft
IPC: B64C17/00
Filed: 1923-02-07
Abstract: 214,759. Munyard, A. R. Feb. 7, 1923. Addition to 154,277. No Patent granted (Sealing fee not paid). Balancing.-In an automatic balancing device as claimed in the parent Specification, the solenoids actuate the valves of pneumatic apparatus for initiating the movement of power mechanism for actuating the ailerons. The solenoid armatures 29 controlled by inclined troughs 33, 34 containing beads of mercury 38 as described in the parent Specification actuate valves 25 for controlling the supply of compressed air to cylinders 15 in which work pistons connected by rods 14 to bevel gears 6 movable on a shaft 5. When one or other of the bevel gears 6 is moved inwards into gear with a bevel wheel 3 on the engine shaft a worm 7 on the shaft 5 drives a worm-wheel 8 in a shaft 9 having a drum 10 on which is wound a cable 11 connected to the ailerons. There may be a clutch between the drum 10 and the shaft 9 to enable the automatic mechanism to be cut out. The ailerons actuate switches which in conjunction with inner contacts 37 in the troughs 33, 34 and outer windings on the solenoids, all as described in the parent Specification, restore the ailerons to their normal positions. Springs 55' restore the armatures 29 to their normal position.
Patent GB-666149-A (GB)
Title: Improvements relating to means for detecting gas leaks in refrigerating installations
Filed: 1949-02-10
Abstract: A device for detecting gas leaks in refrigerating apparatus employing gaseous refrigerants containing halogenated hydrocarbons comprises a candle on or in which is positioned adjacent but not within the wick, thin metallic copper which is adapted by the candle flame to be brought to such incandescence that the flame only changes colour (to green) when in immediate proximity to the defective point of the apparatus.  A thin copper wire may spirally surround the wick. Alternatively, a copper open work cap or sleeve, preferably having divergent points, is positioned above the candle.  In a further arrangement, particles of copper are distributed in the body of the candle.
Patent GB-367543-A (GB)
Title: Improvements in and relating to commutators for dynamo electric machines
IPC: H01R43/08
Filed: 1931-02-05
Abstract: 367,543. Dynamo-electric machines. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, VINSEN, W. W., 21, Park Road, and GRIFFITHS, L., Kennington, Biggin Hall Crescent, both in Coventry. Feb. 5, 1931, No. 3728. [Class 35.] Commutators of the type described in Specification 285,661, [Class 35, Dynamo-electric generators &c.], are made by drawing or extruding a straight bar of copper 1 with a double dove-tail section, cutting rectangular slots 2 in one side of the bar, bending the bar into circular form with the projections between the slots extending inwards, embedding the projections in insulating material 4, and finally separating the segments of the commutator by cutting the bar between each of the projections.
Patent GB-747043-A (GB)
Title: A device for measuring or measuring and sorting hollow tubes
IPC: B07C5/08
Filed: 1954-02-09
Abstract: 747,043. Linear dimension gauges. BUNDER-GLAS GES. Feb. 9, 1954 [Feb. 13, 1953], No. 3733/54. Class 106 (2). [Also in Group XXIII] In an apparatus which indicates the average internal diameter of a tube or like annular body, and which can be adapted to indicate the average wall thickness of such an object, several feelers whose axis lie on a cylindrical surface are each connected to the corners of a polygonal frame, symmetrically placed around them, and springs, acting radially outwards at these corners, tension the frame and bring the feelers into contact with the inside wall of the object, so that any relative radial movement of the feelers causes a variation in the peripheral length of the polygonal frame, which variation is a measure of the average internal diameter of the object. The six feelers 12-17, Fig. 2, only two of which, 14, 17, are shown in Fig. 1, are fixed at their ends to a ring 39 and can pivot about a point adjacent to the ring by virtue of a thin portion 37. Each feeler 17 is linked by a wire 18 to a plate 33, Fig. 3, situated at a corner of a hexagonal frame formed of wires 25-29 and belts 30, 31 wound in opposite directions on a shaft 32, the frame being supported by springs 35 which permit it to rotate slightly about its axis. Springs 48, 49 and belts 46, 47 apply a couple to the shaft 32 tending to wind the belts 30, 31 on to the shaft, so that because of the way in which the polygonal frame is supported if a feeler is displaced radially inwards an additional portion of the belts 30, 31 is wound on to the shaft 32 and the shaft 32 rotates and moves a rod 50 to work an indicator or control a sorting device. In order to insert the feelers into the object 11 being gauged, the supporting ring 39 is moved to the right (to the position shown dotted in Fig. 1), carrying the feelers with it, to cause rollers 43 pivoted to the feelers to bear against a fixed abutment 44 and force the feelers radially inwards. In a second embodiment, for determining the average wall thickness of a tube, Fig. 4, a second set of feelers 80, pivotally fixed at 81 to the first set 79, has the polygonal frame attached to its inner end 85 immediately above the pivot 37 on the first set. The peripheral length of the frame therefore varies only when the wall thickness of the work being gauged varies since if the internal diameter of the work varies while the wall thickness remains constant, the feelers will maintain their parallel relationship and pivot, the first set about 37 and the second set about their end 85, and the pivot 85 will remain at the same point in space. A device for holding the work being gauged is also described (see Group XXIII).
Patent GB-813011-A (GB)
Title: Dehydrogenation catalyst
Inventor: HEINEMANN HEINZ
IPC: B01J27/13
Filed: 1957-02-04
Abstract: A reforming catalyst consisting of minor proportions of platinum and halide on activated alumina is converted to a single-function hydrogenation-dehydrogenation catalyst by treatment in a gaseous atmosphere comprising steam and at least 5 vol. per cent of a reducing gas but no oxidizing gas at 700 DEG  to 1000 DEG  F. (370 DEG  to 540 DEG  C.) and 1 to 10 atmospheres for at least one hour. The product is said to be a non-acidic single function hydrogenation-dehydrogenation catalyst with the halide content reduced to significantly below 0.1 per cent which is capable of converting at least 60 per cent cyclohexane to benzene at 343 DEG C., a liquid space rate of 6 LHSV atmospheric pressure and a H2 : C6H12 ratio of 4.  Suitable reforming catalysts may be obtained by impregnating an activated alumina, preferably having an attrition index greater than 60 and a surface of 60 to 100 sq. metres/gm., with chloroplatinic acid, or by depositing colloidal platinium sulphide on hydrolysed aluminium chloride or chlorided alumina and reducing with hydrogen.  They may contain 0.2 to 1.9 per cent each of platinum and halide.  The gaseous atmosphere with which the reforming catalyst is treated may consist of 25 to 75 mol. per cent steam, 10 to 75 mol. per cent reducing gas, e.g. hydrogen and the balance of an inert gas, e.g. nitrogen, methane, ethane or mixtures thereof.  In examples, the dual-function catalyst comprises 0.5 per cent platinum and 0.5 per cent chloride on alumina having an attrition index of 70.  It is treated with (i) 67 vol. per cent steam/33 vol. per cent H2 at 900 DEG  F. for 5 hours; (ii) 25 vol. per cent steam/70 vol. per cent ethane/5 vol. per cent H2 at 1000 DEG  F. for 7 hours; (iii) equal volumes of steam, methane, hydrogen and propane at 700 DEG  F. for 10 hours; (iv) 15 vol. per cent N2/75 vol. per cent steam/10 vol. per cent H2 at 750 DEG  F. and 2 atmos. for six hours; and (v) 75 vol. per cent steam/25 vol. per cent H2 at 900 DEG  F. and 10 atms. for one hour.  The catalyst obtained by treatment (i) when used to hydrofine naphtha and gasoline at 700 DEG  F., 300 p.s.i.g., 6 LHSV and a H2 : gasoline volume ratio of 1.5 effectively hydrodesulphurizes the gasoline and saturates the olefines with little cracking. Specification 789,572 is referred to.
Patent GB-205010-A (GB)
Title: Improvements in pins for electrical plug connectors
IPC: H01R13/17
Filed: 1923-02-08
Abstract: 205,010. Arnold, C. L., and Belling, C. R. Feb. 8, 1923. Plug connectors. - A pin comprises a tube 1, threaded on a headed core 7, and mounted in a recessed hole in a plate 10. A nut 11 engages a threaded part 9 of the core 7, and a pin 12 passing through the tube and core prevents the complete pin from turning in the plate 10. The tube has a number of transverse cuts 4 opening into a longitudinal cut 5 so as to form tongues 6, which are opened slightly so as to make good contact with a socket.
Patent GB-456206-A (GB)
Title: Improvements in and relating to permanent magnet dynamo electric machines
IPC: H02K1/22
Filed: 1936-02-07
Abstract: 456,206. Magnets; magneto-electric machines. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Feb. 7, 1936, No. 3809. Convention date, Feb. 7, 1935. [Class 35] A rotary permanent magnet is formed by casting metal symmetrically about a tube of metal which can easily be machined. In the form shown, alloy is cast about a tube 14 and has salient polepieces 11 of shorter axial length. Damping windings may be provided on the poles to reduce the tendency to become de-magnetized. The stator 16 is provided with a distributed winding. Such a machine may be used as a generator or as a non-self-starting motor. The magnet may be enclosed in annular laminµ and used in conjunction with a shaded bi-polar stator as a self-starting synchronous motor. Specifications 385,470 ; 423,987 and 424,746, [both in Group II], are referred to.
Patent GB-778662-A (GB)
Title: Improvements relating to the manufacture of bricks and the like
IPC: B28B3/00
Filed: 1953-02-11
Abstract: Raw clay in the form of a crumbly mass of grains the internal structure of which is substantially unaltered from the natural structure of the clay is subjected in a closed mould to a pressure not higher than 30 kg./cm2., the moisture content of the outer zones of the grains beng (a) sufficient to allow inter-penetration of the outer zones of adjacent grains under said pressure without substantial effect on the said internal structure and (b) so low that even in the case of large bricks no cracks or appreciable warping occur during shrinkage upon drying. The moisture content of the grains may be between 12 and 20 per cent.  If the clay as dug is not in the required crumbly state it may be granulated as by means of sieves or cutters and sieves. The grains used may correspond to the Fuller curve.  If the clay is too moist the moisture content may be reduced by drying, or by passing electric current there-through, or by mixing with drier clay.  If the clay is too dry it may be moistened by spraying or admixture with wetter clay.
Patent GB-796520-A (GB)
Title: Improvements relating to wheeled shopping or like bags
Inventor: WOOD NORMAN ERIC
IPC: A45C5/14
Filed: 1956-02-09
Abstract: 796,520. Portmanteaux. HARRIS (BIRMINGHAM), Ltd., T. Nov. 6, 1956 [Feb. 9, 1956], No. 4016/56. Class 133. [Also in Group XXXII] A shopping or light bag is attached to a wheeled support 11 by means of an inverted pocket 28 or overhanging part on a wall of the bag and engaging over a part of the support. The rectangular bag 1 of flexible material has front and rear walls 2, 3 connected by side walls 4, and a mouth 5 closeable by a separate detachable cover 6. An interior rectangular frame reinforces the front 2 and side walls 4 are stiffened by boards 8. The wheeled support 11 comprises a rectangular panel of suitable rigid material 14 the bottom corners of which carry metal plates 15 which support an axle 18 for wheels 17. At the bottom panel 14 carries a bracket 19 for the end of the stick handle 12. A bracket also carries a ground engaging rod 20 which will maintain the wheeled bag substantially upright. The handle 12 is detachably secured to panel 14 by a clamping screw 22, clamping member 26 and a U-shaped bracket 24 secured to the rear face of panel 14. An inverted pocket 28 extends full width of the rear wall 3 of the bag and is provided by a flexible strip 29 stitched at the top 30 to the said rear walls and having forwardly turned terminal portions stitched to the side walls 4 of the bag. The detachable top cover 6 of flexible material is internally stiffened by front and side flanges 32, 33, the rear attachment flange 34 when clamped in position forms a hinge.
Patent GB-1476691-A (GB)
Title: Tubing
IPC: B29C48/50
Filed: 1975-03-19
Abstract: 1476691 Moulded tube J D COPELY 19 March 1975 [29 Jan 1974] 04079/74 Heading B5A [Also in Division F2] Apparatus for forming a tube comprises an extrusion die issuing an extrudate of plastics material the extrudate being lapped around a mandrel by rotating the die about the mandrel, and simultaneous with draining the tube formed by the lapped extrudate in an axial direction. In a preferred embodiment the extrusion means comprises a duct 18 feeding a hopper 17 communicating with an Archimedes screw, driven by an electric motor 23 and housed in a bore of a cylindrical member 19 surrounded by an electrical heating jacket 20, delivering plastics material to an extruder head 22 producing the extrudate 13 which is then lapped on to the mandrel 12. The mandrel 12 is mounted on a stationary cylindrical frame 10 and extrusion means on a sub-frame 25 which is rotated relative to the frame 10 by an electric motor 24 through a peripheral rack 27 on the subframe and a pinion 26. The mandrel is also provided with hollow ducts for the circulation of cooling water via inlet and outlet 14 and 15 respectively and is mounted in a support tube 16. The plastics extrudate is of parallelogram cross-section such that the edge of each lap may bond with that of the preceding lap with the assistance of a pressure roller 21. Reinforcement may be provided being fed into the crosshead through an aperture 20a such that it is embedded in the extrudate or alternatively by the provision of a nylon sleeve which also serves to render the tube inert to acids or alkalis for example.
Patent GB-169139-A (GB)
Title: Improvements in and relating to school slate frames
IPC: B43L1/02
Filed: 1921-02-03
Abstract: 169,139. Koser, A., and Majhenic, V. Sept. 13, 1920, [Convention date]. Slates.-A school-slate frame is provided on opposite edges with copies of letters and numerals, a calculating-device 4, and a recess 2 serving as a box for holding pencils; the lid 3 of this box has a graduated scale on one face and additional copies of letters or numerals on the other face. The calculating-device may comprise two wires 7 mounted in a recess 5 in the frame and each carrying the balls 6.
Patent GB-621261-A (GB)
Title: Improvements in and relating to power thermostats
IPC: F16K31/68
Filed: 1947-02-12
Abstract: 621,261. Temperature-responsive actuating-elements. CLARKE ENGINEERING CO., Ltd., H. B., and TARRY, H. Feb. 12, 1947, No. 4096. [Class 64(ii)] [Also in Group XXVI] in a power thermostat comprising a pellet 16, e.g. of wax and powdered copper, which expands on heating and moves an elastic plug 20 (from which it is separated by a flexible diaphragm 17) which slides along a tubular guide forcing a piston 21 outwards, the bore of the tubular guide 19 is smoothly constant throughout the whole length in which the plug is slidable. The device may be of double form as shown, to reduce breakdown risk, but may also be of single form. In the double form, two housings 10, 11 have a dividing wall 12 between them and a cooling fin 13. The diaphragm 17 (which like the plug 20 may be of synthetic rubber) is held down by the flanged end 18 of the tubular guide over the pellet. On cooling, a spring or the like (not shown) returns each piston. Specification 576,779 is referred to.
Patent GB-1438096-A (GB)
Title: Preparation of dithiodianilines
IPC: C08K5/37
Filed: 1975-01-30
Abstract: 1438096 Dithiodianilines GOODYEAR TIRE & RUBBER CO 30 Jan 1975 [2 Feb 1974] 4103/75 Heading C2C Dithiodianilines are prepared by reacting a halonitrobenzene with sodium sulphide and sulphur, adding an acid to the mixture after reaction has taken place to adjust its pH to a value in the range 4-7, refluxing the reaction mixture, and recovering the required product. Suitable starting halonitrobenzenes are, for example, o-chloronitrobenzene, p-chloronitrobenzene, 3,4-dichloronitrobenzene, o-bromonitrobenzene, p-fluoronitrobenzene and 2,5-dichloronitrobenzene. The preferred acid is acetic acid.
Patent GB-120507-A (GB)
Title: Improvements in or relating to the Heating Conductors of Thermic Telephones.
IPC: H04R23/00
Filed: 1918-03-08
Abstract: 120,507. Lange, P. de, and Naamlooze Vennootschap de Nederlandsche Thermo Telephoon Maatschappij. March 8, 1918. Thermal instruments. - To ensure equal lengths of the loops 10 of thermic t e l e - phones, the loop wires are provided with projections 15 which wedge into holes 11 of the support 12, the ends 13 of the loop being pressed into grooves 14 on the lower underside of the support.
Patent GB-788487-A (GB)
Title: Improvements in carriage retarding mechanism for typewriters or like machines
IPC: B41J19/10
Filed: 1956-02-09
Abstract: 788,487. Typewriters &c. ROYAL McBEE CORPORATION. Feb. 9. 1956 [March 4, 1955], No. 4132/56. Class 100(4) A typewriter carriage retarding device comprises a dash pot 7 on a carriage rail 2 and a resilient block 28 on the typewriter frame 1, the dash pot having an extending stem 17 with an exhaust passage 24 communicating with a cross-shaped recess 30 which forms a valve connection with the block 28 such that the restrictive effect of the engagement of the block 28 over the recess 30 is dependent upon the speed of the carriage at the engagement. After impact the restriction of the exhaust passage is progressively decreased. The device may be used at the end of a carriage return movement or in short and long tabulating runs so that the carriage is properly positioned for typing.
Patent GB-100662-A (GB)
Title: Improvements in Incubators and like Apparatus for Hatching Poultry and like Eggs.
Inventor: LAWSON WILLIAM
IPC: A01K41/06
Filed: 1916-03-20
Abstract: 100,662. Lawson, W. March 20, 1916. Hatching-appliances.-Relates to the egg-carrying frames of incubators constructed to facilitate turning the eggs and comprising a pair of frames having perforated bottoms and adapted to fit together with the eggs between and to be inverted to turn the eggs. According to the invention, a pair of similar frames are secured together by means attached to the outside surfaces of each frame. In one form, the egg-carrying frame d, Fig. 2, is secured by catches f to an inner frame a, Fig. 1, having a central beading b with which the catches f engage. To turn the eggs, a second frame d is inverted and attached above the inner frame a to hold the eggs while the whole is turned over. The frame may be formed of wood or metal. Pins c are provided to support the frames during turning, the pins moving in slots p, Fig. 7, in lateral slides o, which move in guides q on the casing of the incubator. Instead of the slides o, external hinged brackets may be employed. The chicks pass from the drawer to a floor r at the rear, and are removed through a door m with a glass panel n Several pairs of frames may be fitted in one drawer, the eggs being held between each pair during incubation until nearly due to hatch, whereupon the upper frame is removed from each pair. By employing four pairs of frames, the eggs may be moved from the centre to the side of the drawer by turning horizontally, as well as inverting. A number of pairs of frames may be carried in a drawer x, Fig. 10, having a wire bottom y and a partition z near the front and back. When the time for hatching approaches, the upper part of the partitions z is removed, so that the chicks can pass over and fall between the partition and the end of the drawer to a trav below. A removable set of partitions may be inserted to separate the eggs during turning.