baber/WOPTO huggingface dataset:
Patent GB-933047-A (GB)
Title: Improvements in rotor assembly for gas turbine engines
IPC: F01D5/22
Filed: 1962-02-20
Abstract: 933,047. Turbine and compressor bladed rotors. GENERAL ELECTRIC CO. Feb. 20, 1962 [Feb. 23, 1961], No. 6469/62. Class 110(3). A rotor assembly for a gas-turbine engine, for example an axial-flow compressor rotor, comprises a series of rotor discs 11 having axially-extending slots formed in their rim portions 12 in which the root portions of the rotor blades are mounted. The blades are formed with platform portions 20, and a spacer ring 24 is provided to fit between the platform portions of adjacent blade rows, the ring having a portion 26 which co-operates with the blade platforms 20 to form the inner wall of the fluid flow path. The spacer ring is also formed with a pair of offset rim portions 30, 33 which bear against the undersides of the rim portions 12 of the adjacent rotor discs. The spacer ring is split at one point in its periphery, the adjacent ends of the ring being adapted to be relatively displaceable whereby one end portion may be displaced sufficiently radially inwardly to permit removal of a rotor blade. The split in the spacer ring 24 is shown at 35 in Fig. 3, the split being of zig-zag form, as shown, so that the two parts tend to lock together in their normal position. The two ends may be additionally secured together by means of a bolt member 40. The end 37 of the spacer ring is shown displaced radially inwardly in Fig. 5, to permit removal of a blade 16. The blade roots 18 are provided with lugs 22, as shown in Fig. 5, to limit axial movement in one direction, and a plate 44 may be secured to the ring 24 to engage between a pair of the blade lugs 22 so as to prevent circumferential movement of the spacer ring during operation. In a second embodiment, one end of the spacer ring is formed with an axially-extending recess in its outer periphery and the other end with an axiallyextending lug on its inner periphery the recess normally engaging with the lug but being displaceable radially inwardly therefrom.
Patent GB-134470-A (GB)
Title: Improvements in Belt Gearing for Tool Spindles.
Inventor: RIVETT EDWARD
IPC: F16H7/02
Filed: 1919-03-17
Abstract: 134,470. Rivett, E. March 17, 1919. Drilling-machines.-In belt gearing for driving tool spindles of drilling, reaming, tapping, threading, and like cutting machines, the drive pulleys are arranged in line between idler pulleys, a single driving-belt making two half turns around each driven pulley. The driving-shaft 17 drives a number of countershafts 9 through a continuous belt 20 passing over guide pulleys 13, 14, 15 and twin pulleys 12 on the countershafts in the manner shown in Fig. 5, so as to pass around opposite sides of the twin pulleys 12 and thus relieve strain on their bearings. Each pulley 10 on a countershaft 9 drives its tool spindle 1 through a continuous belt 11 passing around twin guide pulleys 8 and a twin pulley 7 on the tool spindle. The spindle 1 and pulleys 7, 8 are carried on a bracket 2 rocking on the shaft 9.
Patent GB-630030-A (GB)
Title: Improvements in or relating to sifting or screening devices
IPC: F24B15/00
Filed: 1947-03-10
Abstract: 630,030. Cinder sifters. PATTENDEN, E. J. March 10, 1947, No. 6662 [Class 117] A cinder-sifting device comprising a container 10 and a perforated or -open mesh tray or basket 13 supported within the container 10 to receive all ashes and cinders delivered to the latter; is closed by means of two lids 12 and 17, hinged about a common axis, as on pin 18, the lid 12 covering the aperture for insertion of the ashes and cinders and for the insertion or withdrawal of the tray 13 and the lid 17 moving into an open position automatically on suitable tilting of the device to allow discharge of the ashes collected in the device and moving into the closed position on return of the device to its sifting position. The container may be provided with a handle 11 and the tray with a handle 14. Either or both lids may be formed with side wings 19, 20. One or more walls of the container may be so disposed as to provide the equivalent of a shoot which will direct and facilitate the flow of ashes from the container when lid 17 is in its open position.
Patent GB-267535-A (GB)
Title: Improvements in the manufacture and production of hydrogen
IPC: C01B3/40
Filed: 1927-03-10
Abstract: 267,535. I. G. Farbenindustrie Akt.- Ges. March 10, 1926, [Convention date]. Grant of Patent opposed. Alcohols.-A mixture of carbon dioxide and hydrogen, suitable for the synthesis of methyl alcohol and the like, is prepared by treating gaseous or vapourized hydrocarbons, e.g. methane, ethane, ethylene or benzene, at temperatures of 300‹-600‹ C. with steam in the presence of catalysts consisting of iron, nickel, cobalt, or compounds thereof, activated by the addition of chromium, vanadium, or compounds of the alkali, alkaline earth or earth metals. According to the example, a mixture of hydrogen and carbon dioxide is prepared by passing methane and steam over a heated catalyst prepared by adding potassium carbonate solution to a solution of nickel, aluminium and magnesium nitrates, mixing the washed precipitate with a little potassium nitrate solution, drying, and reducing with hydrogen. The Specification as open to inspection under Sect. 91 (3) (a) describes the activating agents as metals whose oxides are reducible with difficulty, or compounds thereof. This subject-matter does not appear in the Specification as accepted.
Patent GB-1168671-A (GB)
Title: Earth Leakage Protective Systems.
Inventor: PEARSON FRANK KEITH
IPC: H02H3/347
Filed: 1967-02-13
Abstract: 1,168,671. Protective arrangements. BALDWIN & FRANCIS (HOLDINGS) Ltd. 23 April, 1968 [13 Feb., 1967], No. 6786/67. Heading H2K. An earth leakage protective arrangement has a contactor 3 controlled by the contacts 5 of a relay 27 energized through a silicon controlled rectifier 25 which is normally repeatedly triggered by an oscillator circuit. This oscillator comprises a transformer 14 having a winding 21 connected in series with a transistor 13 having its base connected to a winding 20 of the transformer in a series circuit which includes diodes 18, 19 and a controlling voltage source 7, e.g. the secondary winding 7 of a core-balance transformer 6. A capacitor 17 is connected so as to be charged through the diode 19 and discharged through the diode 18 so permitting the oscillations to occur. In the event of an earth fault, the voltage induced in the winding 7 serves to drive the base of the transisor 13 more negative causing the oscillations to cease. The capacitor 17 and a capacitor 28 provide a delay in operation sufficient to prevent incorrect operation due to transient, e.g. motorstarting, conditions. A lock-out circuit to prevent the re-closing of the contact 3 when an earth fault exists, comprises a further winding 8 on the core-balance transformer. This winding 8 is energized from a source 9 through a bridge rectifier 32, and an inductor 39, the fault path and the contacts 34, 37, 38 of relays 35, 40, these contacts closing when the relays 35, 40 are de-energized when the relay 27 opens its contacts to cause the opening of the contractor 3, 4. A test circuit 42, 43 is provided. In an alternative arrangement, Fig. 2 (not shown), an artificial neutral point inductor is used in place of the core-balance transformer the "controlling" voltage being obtained across a resistor connected between the artificial neutral and earth.
Patent GB-1017839-A (GB)
Title: Improvements in and relating to the manufacture of footwear
IPC: A43B23/02
Filed: 1964-02-19
Abstract: 1,017,839. Moulding footwear. DELPHI ESTABLISHMENTS. Feb. 19, 1964 [April 30, 1963], No. 6888/64. Heading B5A. [Also in Division A4] In the manufacture of footwear by compression moulding vulcanized rubber or by injection moulding plastics material in which at least one strip or tongue is connected to the upper at one of its ends with or without a lateral edge connection, the or each strip or tongue is temporarily fixed to an auxiliary tongue of a material which does not bond to the upper, whereby undesired adhesion of the or each strip or tongue to the upper is prevented. In the moulding of a pit boot the preformed tongue 18, which may be attached to a lining for the upper, is tied by thread to an auxiliary tongue 13, which is then connected either by a pivot-pin 14, or by a magnetic bearing 16, to a last 10 around which is disposed the vulcanizable rubber to be compressed by mould parts 11 (not shown), 11 2  and 12. Cutting edges within the mould sever the threads tying together the members 13, 18 when the mould is closed. The manufacture is also described of a ski boot having spaced inner and outer uppers, two front tongues, and one rear tongue.
Patent GB-1467821-A (GB)
Title: Holographic data stores
IPC: G03H1/04
Filed: 1974-03-26
Abstract: 1467821 Holographic data store SIEMENS AG 26 March 1974 [26 March 1973] 6913/74 Heading G2J [Also in Division G4] A holographic digital data store has a plurality of data modules in parallel and a common light beam 10 is split to form sub-beams 11-14 each incident upon a module. Each module also contains a detector unit. The beam-splitter elements are arranged so that each sub-beam 11-14 has encountered an equal number of beam-splitters 8.
Patent GB-676363-A (GB)
Title: Improvements in and relating to a process for the manufacture of 4-benzoylamino-2-oxybenzoic acid
Filed: 1949-03-14
Abstract: 4 - Benzoylamino - 2 - hydroxybenzoic acid is prepared by treatment of 4-amino-2-hydroxybenzoic acid or a metal salt thereof with a halide, anhydride or ester of benzoic acid.  An example is given of the process.  The Specification as open to inspection under Sect. 91, comprises the manufacture of 4-acylamino-2-hydroxybenzoic acids by treatment of the amine with a carboxylic acid halide or anhydride. Examples are given of the use of acetic anhydride and the chlorides of stearic, myristic, pelargonic, capric, propionic, phenylacetic, butyric, hydrocinnamic, isovaleric, cinnamic and anisic acids.  This subject-matter does not appear in the Specification as accepted.
Patent GB-515515-A (GB)
Title: An improved indicator for retractable undercarriages of aeroplanes and similar devices
IPC: B64C25/28
Filed: 1938-03-05
Abstract: 515,515. Electric indicators. BRISTOL AEROPLANE CO, Ltd.. FRISE, L. G., and HEARDER, R. POLLINGTON-, March 5, 1938, No. 6976. [Class 40 (i)] An instrument for indicating to the pilot of an aircraft the position of the retractable undercarriage comprises two electromagnets or solenoids 19, 20 adapted to be energized selectively so as to move a pivoted armature into one or other of two positions corresponding to the " up " and " down' positions of the undercarriage, the armature being provided with adjustable means for balancing it against inertia forces and with a pointer or like indicator. As shown, the instrument comprises a rear wall 10,adapted to be secured to the instrument board and carrying terminals 11, 12 connected to the solenoid windings and to switch contacts (not shown) adapted to be engaged by the undercarriage. On the wall is mounted an outer frame 13 having a transparent cover 14 and surrounding an inner frame 15 the front portion 16 of which is formed as a dial bearing the words " up " and " down " and carries a bracket 18 supporting the solenoids 19, 20, the central part 21 of the bracket having adjustable bearings 22, 23 for an axle 24. To a U-shaped metal strip 25 secured to the axle are fixed an arm 26 carrying a shield 17, members 27, 28 carrying soft-iron pole pieces 29, 30, and a screw-threaded spindle 31 carrying an adjustable balancing mass 32 lockable by nuts 33, 34. The shield 17 is movable over the dial 16 and in order to maintain it in an intermediate position, corresponding to an intermediate position of the undercarriage or for indicating a failure in the electric circuit, the part 21 of the bracket 18 also carries a U-shaped spring 35 the limbs of which embrace the strip 25. On energization of either solenoid the shield 17 moves over the dial and uncovers the appropriate word. Specification 147,194; [Class 40 (i)], is referred to.
Patent GB-1048614-A (GB)
Title: Multiple spool valve assembly for controlling fluid motors
IPC: F16K27/04
Filed: 1964-02-19
Abstract: 1,048,614. Valves. PARKER-HANNIFIN CORPORATION. Feb. 19, 1964 [March 11, 1963], No. 6985/64. Heading F2V. [Also in Division G3] A multiple spool valve assembly for controlling the operation of a corresponding number of fluid-actuated motors 5a, 5b or 5c (Fig. 1, not shown), comprises a housing 4 having an inlet 7 for connection with a source of fluid pressure, a return 8 for connection with a fluid reservoir, and motor ports 10a, 10b and 10c for connection with the fluid motors, at least two spools 2a, 2b or 2c reciprocable in the housing for control of the motors, the housing providing coring arrangement which can be adapted for " parallel " operation of the motors, i.e. any one or more or all valves may be operated to control the respective motor, or " series-parallel " operation, i.e. only one valve at a time may be operated. Each spool is of the four-way open-centre type and is biased to the neutral position by a spring 23. Longitudinal movement of a spool controls the flow of pressure fluid to either side of the respective piston in a motor through a pressure passage 9a, 9b or 9c and motor passage 10a, 10b or 10c whilst exhausting from the other side of the piston through motor passages 10a, 10b or 10c and exhaust ducts 11 at the opposite end of the valve spool. Fluid is fed at 7 past a relief valve 14 to the spool by-pass passages 6 and in the neutral position of the spools, to the outlet 8. For a " series-parallel " circuit each by-pass 6 communicates with a lateral extension 9e of the respective pressure passage 9a, 9b or 9c through a check valve 27a, 27b or 27c (Fig. 3, not shown), thus ensuring that only one valve spool can be operated at a time because the by-pass 6 upstream thereof must be open. For a " parallel " circuit, (Fig. 4, not shown), the by-passes 6 are short-circuited by drilled holes 30, 31a, 31b and 31c and sleeve members 32b and 32c which constitute seats for check valves 27b and 27c. The arrangement of Fig. 4 may be changed to a " series-parallel " circuit by the provision of plugs which close a passage 31a, 31b or 31c to the bore 30 and open it to a by-pass extension 6e. The bore 30 may be provided in the housing 4 as cast.
Patent GB-252827-A (GB)
Title: Improvements in or relating to means or apparatus for feeding sheets of paper to thecylinders of printing machines
IPC: B65H3/56
Filed: 1925-03-16
Abstract: 252,827. Musgrave, F. W., and Watkinson, R. A. March 16, 1925. Sheet-separators, - A presser device, bearing on one of the upper edges of a pile of sheets for use in connection with suction or other sheet-separating devices to assist in separating the sheets, comprises a number of leaf springs 22 secured to members 20 carried by a bar 4 pivotally mounted in the machine frame 7, a lever 9 being provided at one end of the bar 4 and having a spring 10 connecting its end to the frame 7 so as to cause the springs 22 to press on the top of the pile. The movement of the springs 22 towards the pile is limited bv a set-screw 14 engaging a projecting arm 13 on the opposite end of the bar 4 to the lever 9. The members 20 are adjustably and detachably mounted on the bar 4 by means of springs 21, which may be integral with the springs 22, both springs being secured to the bar by a set-screw having a knob 23. Brackets 18, secured to the ends of the bar 4 by bolts 17, carry pins 5 passing through the frame 7 and forming the pivots for the bar 4. the lever 9 and arm 13 being attached to the outer ends of the pins. The bar 4 may be adjustably secured to the brackets 18 by elongating the slots through which the bolts 17 pass. Specification 216,236 is referred to.
Patent GB-1249457-A (GB)
Title: Improvements in or relating to rolls, particularly for metal rolling mills
IPC: B21B27/03
Filed: 1970-02-16
Abstract: 1,249,457. Rolling. MORGAN CONSTRUCTION CO. 16 Feb., 1970 [22 Feb., 1969], No. 7247/70. Heading B3M. [Also in Division F2] A roller ring 2 is mounted on the end of a drive-shaft 3 by an unsplit tapered collet 1 with a self-locking cone angle α, preferably about 2¢ degrees, provision being made for securing and releasing the roller. As shown in Fig. 1, the reduced end of shaft 3 is engaged by an axial screw 11 passing through a threaded sleeve nut 10 carried by an end cap 9 of collet 1. To engage the collet, nut 11 is tightened against nut 10 with the latter held clear of shaft end 7, while to release the collet the nut 10 is tightened while bearing against the end of shaft 7. In Fig. 2 a transverse key 18 is held in place by a screw 20 in a cover 16 which can be removed to allow the attachment of a pump unit to bayonet lugs 15 on the end of collet 1<SP>1</SP> for the application of fluid pressure to engage or release the collet, Figs. 4 and 5 (not shown). The contacting surfaces may be etched or mechanically roughened.
Patent GB-710164-A (GB)
Title: An improved expansible mandrel for use on winding machines
IPC: B65H54/54
Filed: 1952-03-21
Abstract: 710,164. Winding yarn &c. MANCHESTER METAL WORKS, Ltd., COLLE, V. G. VAN., and FISHWICK, T. March 11, 1953 [March 21, 1952], No. 7324/52. Class 120(2) [Also in Group XVI] An expansible . mandrel comprises a cylindrical body 11 having a central longitudinal bore, a spigot 12 slidably located in the bore, a plurality of arcuate segments 13 attached substantially concentrically to the body 11 in such a manner as to be allowed a limited radial movement, and each segment 13 having a plurality of pins 17 spaced over the length thereof and extending through apertures 16, which may be key-hole slots, in the body, the ends of the pins 17 resting in annular grooves 18 in said spigot 12 in one axial position thereof to provide a mandrel of reduced diameter, and upon the spigot 12 being moved into another axial position, as by a screwed portion 15 working in a threaded cap 14, the spigot being rotated by a knurled wheel 20, the pins 17 then being forced radially outwards by inclined surfaces on the spigot 12 to provide a mandrel of enlarged diameter. Blind holes 2 may be included so that a key may be used for turning the spigot. Instead of key-hole slot attachments 16, the segments 13 may be attached to the body 11 by circular clips or spring eyelets.
Patent GB-287169-A (GB)
Title: Means for opening boxes having lids
IPC: B65B43/38
Filed: 1928-03-09
Abstract: 287,169. M³ller, J. C. March 17, 1927, [Convention date]. Filling boxes. - In apparatus for opening the lids of boxes when they are being fed along a track, for instance to a filling machine, the boxes are fed from the bottom of a stack by a band d so that the hinged edge is parallel to guides f. At the position shown in Fig. 3, one guide f is gapped to allow a pressure roll o to bear upon the side of the box remote from the hinge. A lever g, operated by a cam l, engages beneath the lid a<2> and lifts it to a position at which a stationary bar r, Fig. 5, comes into operation. The bar is so shaped that the further travel of the box between the guides f completes the opening.
Patent GB-549970-A (GB)
Title: Improvements in or relating to supports for thermionic valves
IPC: H01J19/66
Filed: 1941-06-11
Abstract: 549,970. Wireless receiving apparatus. STANDARD TELEPHONES & CABLES, Ltd., HOUGHTON, L. W., and HOLDSTOCK, S. J. June 11, 1941, No. 7387. [Class 40 (v)] A screening can 2 is formed with spring members 8 which press on to a valve envelope 6 when the can is pushed on to its base 3 so as to hold the valve in its holder. The members 8 are constituted by tongues on a metal strip 9 which is bent round and inserted into the can and held in place by a flange 7.
Patent GB-1019541-A (GB)
Title: Buffing element
Inventor: CHURCHILL GEORGE RICHARDS
IPC: B24D13/08
Filed: 1963-02-25
Abstract: 1,019,541. Grinding. GEORGE R. CHURCHILL CO. Inc. Feb. 25, 1963, No. 7486/63. Heading B3D. The subject matter of this Specification is substantially the same as part of that described in Specification 1,019,542 and the claims are concerned with a buffing element comprising a continuous rectangular strip of buffing material longitudinally folded upon itself with overlying layers thereof jointly folded to form transverse uniform corrugations lying against each other with the major portions extending perpendicular to the general plane of the strip, a wire extending within the folded edge of the strip, the material at the folded edge being randomly gathered about the wire and compressed in a longitudinal direction, the corrugations extending only from a position adjacent but spaced from the wire to the opposite edge of the strip.
Patent GB-725973-A (GB)
Title: Method of and apparatus for producing granulated synthetic material
IPC: B29C53/24
Filed: 1953-03-18
Abstract: 725,973. Making granules of polyvinyl chloride, polyethylene &c. BUSS AKT.-GES. March 18, 1953 [March 20, 1952], No. 7500/53. Class 87 (2). A method of producing granulated synthetic material comprises passing a mass of material, e.g. polyvinyl chloride or polyethylene, between a pair of rollers provided with peripheral grooves so arranged that a groove of one roller is opposite a wider flat between two grooves of the other roller, and cutting the ribbon so produced transversely at intervals. The grooves 3 in the roller I are opposite the flats between the grooves 4 in the rollers 2, and conversely the grooves in the roller 2 are opposite the flats in the roller 1, with the result that the material is formed into a ribbon with ribs that project alternately from its opposite surfaces. Before being cut to form the granules the ribbon is cooled in a bath of water. The width of the grooves is preferably only slightly less than the distance between them so that the webs of material joining the ribs of the ribbon are weak and easily broken. The distance 6 between a groove of one roller and an adjacent groove on the other should be chosen according to the characteristics of the material to be processed.
Patent GB-797361-A (GB)
Title: Improvements relating to cranes and excavators
Inventor: BROCKLEBANK NORMAN
IPC: E02F9/12
Filed: 1955-03-15
Abstract: 797,361. Bearings. PRIESTMAN BROS., Ltd. Feb. 22, 1956 [March 15, 1955], No. 7545/55. Class 12 (1). A crane or mechanical excavator has a rotatable superstructure bedplate 2 mounted on rollers 4 carried by stationary foundation plate 3, a centre pin 10 being provided which is fixed to bedplate 2 and is formed with flange 11 and co-operates with boss 6 of baseplate 2 to form a thrust bearing to resist overturning loads. An oil bath 17 is provided, the level of which is determined by dipstick 24.