baber/WOPTO huggingface dataset:
Patent GB-829853-A (GB)
Title: Improvements in or relating to the preparation of nitro derivatives
IPC: C07B43/02
Filed: 1958-02-10
Abstract: A process for the preparation of a nitro derivative of an alkane, cycloalkane or aryl-substituted alkane comprises admixing an alkyl nitrite or cycloalkyl nitrite with a molar excess of an alkane, cycloalkane or aryl-substituted alkane in a reaction zone maintained at a temperature within the range of 140 DEG  and 300 DEG  C., said hydrocarbon being maintained substantially in the liquid phase by the application of pressure.  The terms "alkyl nitrite" and cycloalkyl nitrite are used to denote alkane and cyclo-alkane hydrocarbons in which at least one hydrogen atom has been replaced by a nitrite group.  In a modification of the process the alkane, cycloalkane or aryl-substituted alkane contains a non-hydrocarbon substituent inert under the reaction conditions employed. Nitrites specified include cyclohexyl, n-butyl, tert-butyl, ethyl, n-propyl, isopropyl and hexyl nitrite, mixed amyl nitrite and 1,4-butylene dinitrite.  Starting materials mentioned include n-nonane, n-decane, 2,3-dimethylbutane, n-hexane, neohexane, isooctane, methylcyclohexane, cycloheptane, cyclopentane, alkylated cycloheptanes and cyclopentanes, ethyl benzene, toluene, p-xylene, cumene, cymene, durene and diisopropyl - benzene.  Non - hydrocarbon substituents which may be present in the starting materials include nitro and halo groups, e.g. as in nitrocyclohexane, chlorocyclohexane, chlorodecane and bromopentane. Diluents mentioned include benzene and acetonitrile.  The process may be operated continuously.  Examples relate to the production of nitrocyclohexane by nitrating cyclohexane with n-butyl nitrite (I)-(IV), to the nitration with n-butyl nitrite of n-nonane, n-decane, ethylbenzene, toluene, chlorocyclohexane, p-xylene, methylcyclohexane, p  2,2-dimethylbutane, cumene and cyclohexane (IV) and to the nitration of cyclohexane with cyclohexyl, isobutyl and tert.-butyl nitrite (V).
Patent GB-166299-A (GB)
Title: Improvements in collapsible cores for use in moulding concrete and like materials
IPC: B28B7/30
Filed: 1920-02-11
Abstract: 166,299. Bijvoet, W., and Delton, J. Feb. 11, 1920. Moulds.-A collapsable core for making holes in concrete or similar material comprises three or more angle-irons 1, Fig. 3, with their flanges bent to the requisite angle, and intermediate plates 2 pressed by springs into contact with two adjacent flanges. The angle-irons are mounted near one end on pivots 3 carried by a piece 5 supported on a central spindle 6 between fixed cbllars 8. The plates 2 are mounted on pivots 4 also carried by the piece 5. Near the other end of the core the angle-irons are connected by curved slotted arms 12, Fig. 4, with a nut 11 mounted on a screwed part of the spindle 6. The slots 16 on the arms engage pins 17 on a piece 10 mounted at the end of the spindle. The plates 2 have eyes 19 through which pass guide-bars 18 attached to the flanges of the angle-irons. The device is supported in position on wooden blocks, and is secured thereto by clamps mounted on the plates 2.
Patent GB-112701-A (GB)
Title: Improvements relating to Cartridge Making Machines.
IPC: F42B33/02
Filed: 1917-03-24
Abstract: 112,701. Birmingham Metal & Munitions Co., and Varley, J. W. March 24, 1917. Cartridge-loading machines.-Consists in arranging, beneath the orifice that delivers the powder charge to the cartridge, a shoot, which is moved aside when the cartridge comes into position beneath the orifice, but remains under the orifice if the cartridge is missing from the table of the machine and deflects the delivered charge into a receptacle. In the form shown, the cartridges d are carried bv a turntable e beneath the delivery orifice a, and the shoot b is carried by a cam or lever c controlled by a spring f and the passing cartridges.
Patent GB-426288-A (GB)
Title: Improvements in speed governing devices
IPC: G05D13/10
Filed: 1934-02-09
Abstract: 426,288. Brakes. BOULTON & PAUL, Ltd., Riverside Works, NORTH, J. D., Hill House, Eaton, and DOE, A., St. Peter's, Earlham Green Lane, all in Norwich. Feb. 9, 1934, No. 4322. [Class 103 (i)] [See also Group XXVI] The speed of a motor is maintained constant by a centrifugally operated brake comprising weights 14 pivoted to a plate 11 slidable upon the motor shaft 10 and loaded by the spring 17, the arms 15 of the weights engaging a fixed abutment 16. As the speed increases the plate 11 engages a friction plate 19 slidably mounted upon the driven shaft 20 and loaded by a spring 21. Further increase of speed causes engagement between the plates 19, 23 producing a braking effort. The speed at which the braking effort commences is adjusted by altering the position of the plate 23 through links 30, 31, 32 connected to the spindle 36 of the means for controlling the input to the motor. A spring 27 loads the plate 23 through link 25. The rods 31, 32 are arranged to cause suitable adjustment of the plate 23 for either direction of rotation of the spindle 36. In a modification the plate 19 is omitted and the friction surfaces are provided on plate 11 which is extended to provide a rigid coupling between the shafts 10, 20. Specification 410,839 is referred to.
Patent GB-1047965-A (GB)
Title: Method and apparatus for processing protein fiber
IPC: A22C13/00
Filed: 1964-02-03
Abstract: 1,047,965. Edible fibrous protein products. GENERAL MILLS Inc. Feb. 3, 1964 [Feb. 5, 1963], No. 4495/64. Heading A2B. In the production of edible products simulating meats fibres of edible protein preferably spun fibres are introduced into a bath of liquid e.g. an alkaline solution for raising the pH into the range 5.5-6.0, wash water, an emulsion or solution of a binder such as dextrin or a starch, a protein, a gum or an alginate or an emulsion of fat or oil or a flavouring agent or colouring agent, the bath and and the fibres are vibrated to loosen the fibres and cause impregnation of individual fibres by the treating liquid. The fibres may be passed through a succession of the baths. The excess liquid may be removed from the fibres for example by means of pressure rollers, and the final product may be subjected to heat treatment.
Patent GB-543928-A (GB)
Title: Improvements in or relating to centrifugal separators
IPC: B07B7/08
Filed: 1941-04-04
Abstract: 543,928. Centrifugal separators. LOUMIET, J. P. April 4, 1941, No. 4546. Convention date, April 4, 1940. [Class 23] Centrifugal separators of the type described in Specification 447,457, used to purify gases or vapours from entrained impurities, have extraction tubes for conveying the separated impurities with a small part of the gas or vapour from the constricted part of the separator in which they collect; finely atomized liquid may be supplied at the inlet to the separator to entrain or dissolve impurities. The arrangement shown in Fig 1 is used to separate oil from exhaust steam. The steam passes from the engine M to the tank Re and thence by the tube A to the separator S' from which it passes through the steam chamber R and the pipe D to evaporating apparatus E<SP>1</SP>. The impurities are thrown to the outer peripheries of the coils and pass through the extraction tubes c, c', c<SP>2</SP> to the pipe B and the chamber R'. They collect in this chamber and are discharged by the action of a float valve into a tank T from which the oil can be collected. The steam which enters the chamber R<SP>1</SP> passes through the tube F to a second separator S' and the second unit E<SP>2</SP> of the evaporating apparatus; the separated impurities from the second separator are led to the chamber R" and are discharged through the U-tube K and the tank J. In a modification atomized liquid is blown through the tube I, Fig. 2, into the entrance of the main separator. A blower V is connected in the pipe D between the chamber R and the second separator. The chamber R receives the separated impurities from both separators. In a further modification the clean gas from the second separator is returned to the entry of the first separator.
Patent GB-1493594-A (GB)
Title: Radiography
IPC: A61B6/03
Filed: 1974-01-31
Abstract: 1493594 Radiography EMI Ltd 15 Jan 1975 [31 Jan 1974] 04562/74 Heading H4F Apparatus for examining a slice of a body by X- or γ-radiation which is of the type described in Specification 1,283,915 in which the body is irradiated with a fan shaped spread of radiation which is detected by a plurality of detectors, the radiation source and detectors being orbited around the body so that it is irradiated along a plurality of angular positions, each detector receiving radiation along a narrow but divergent beam, wherein absorption data signals representing the absorption of radiation along paths of uniform width are produced by combining the detector output signals relating to beam paths at angular positions 180 degrees apart. Thus the orbital motion of the source and detectors around the body is not restricted to 180 degrees (which would in theory be sufficient if the divergent beams are implicitly treated as though they are of uniform width) but is continued for 360 degrees so that for every beam disposition of the first 180 degrees of scan there is a second which is identical except for the fact that the direction of passage of radiation is reversed. The average of the two beam absorptions is then taken to produce data corresponding to a beam path of substantially uniform width considering the limited angular spread of each beam. The data signals may either be sorted into parallel sets (i.e. data produced by parallel beams) using a digital computer comprising an address selector and store, or the data signals are directed to a store divided into n sections (there being n detectors) so that each section holds the data of one parallel set i.e. the sorting into parallel sets is effected as the data is derived. The claims in this Specification are directed towards this sorting of the data signals into parallel sets. The combination of the data from parallel sets 180 degrees apart are effected in the reverse order to which they are derived and stored. The detectors may be grouped into categories so that for example the 1st, 6th, 11th &c. detectors are allocated to category one, the 2nd, 7th, 12th &c. to category two &c., i.e. the categories are interlaced, a category of detectors being sampled every 2/15 degrees of orbital movement so that after 2/3 degrees the detectors of the first category are resampled. Thus data for 2/3 degrees spaced parallel sets are derived but with five times the number of beam paths otherwise possible for a given data storage capacity in the computing and storage network.
Patent GB-347780-A (GB)
Title: Improvements in or relating to apparatus for indicating the electrical state of the atmosphere
IPC: G01R29/12
Filed: 1930-02-11
Abstract: 347,780. Electrification detectors; electrostatic meters; wireless aerials. WELLS, R. I. and WALKER, N. COX-, Royal Aircraft Establishment, South Farnborough, Hampshire. Feb. 11, 1930, No. 4590. [Class 37.] The potential gradient of the atmosphere in the neighbourhood of aircraft is indicated or measured by a trailing or other aerial conductor insulated from the body of the aircraft and by an indicating instrument connected between the conductor and a metallic portion of the aircraft. The aerial conductor is provided at its inner end with a small series-connected condenser, which may be shortcircuited when receiving radio signals, the condenser having an enclosed spark-gap, neon tube, or electrostatic voltmeter in shunt thereto for indication or measurement purposes. In order to secure rapidity of charge and discharge, the aerial conductor may have discharge points, or spikes may be fitted around a collar on the loading weight of a trailing aerial, or, where a number of weights are provided, the end weight is provided with a large integral spike having smaller spikes thereon, or a radium-coated spiral wire may be used at the free end of the conductor. The indicating instrument may be calibrated to read actual potential gradient with respect to a known effective vertical height of the aerial from its base line.
Patent GB-876315-A (GB)
Title: Positive displacement piston pump
Inventor: TRIER FRED FRANCIS
IPC: A01M7/00
Filed: 1959-02-10
Abstract: 876,315. Valves. HUDSON MANUFACTURING CO., H. D. Feb. 10, 1959, No. 4678/59. Class 135. [Also in Groups XXVI and XXVIII] The inlet and outlet valves of a double-acting piston pump are of identical construction and each comprises a cage 51 provided with a shoulder 77 for the end of a spring 78 the other end of which engages a valve disc 49; a further shoulder 79 limits the opening of the valve. The cage 51 is slotted at 80 so that valve seat 48 is gripped by the cage to prevent disassembly during normal handling. The valve seat and disc are of moulded nylon. The pump outlet has a two-position by-pass valve comprising a ball 60 engaged by a spring 61. The spring pressure on the ball may be off-loaded by means of a lever 74 which in the position shown allows the spring to expand; the stem 71 is also threaded so that the spring pressure may be adjusted.
Patent GB-465337-A (GB)
Title: Improvements in or relating to gasfilled electric discharge tubes
IPC: H01J61/26
Filed: 1937-02-16
Abstract: 465,337. Discharge lamps. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Feb. 16, 1937, No. 4681. Convention date, Feb. 19, 1936. [Class 39 (i)] In a gas-filled electric discharge lamp which is enclosed in an outer detachable envelope 4, a waterattracting substance 7 is placed in the space between the lamp 1 and the envelope ; this may be single-walled or double-walled. The substance may be any hygroscopic material such as calcium oxide and calcium chloride or it may be active carbon or silica gel; it may be held in a gauze basket. While cold, water vapour in the envelope 4 will be absorbed by the material 7, but during running of the lamp the water will be evaporated and surround the discharge lamp ; this may have a sodium or a high-pressure mercury-vapour filling.
Patent GB-1129511-A (GB)
Title: Production of a pyridyl piperidine
Inventor: ALLPORT DENIS CHARLTON
IPC: C07D401/04
Filed: 1965-02-03
Abstract: 1,129,511. 4-(4<SP>1</SP>-Pyridyl)-piperidine. IMPERIAL CHEMICAL INDUSTRIES Ltd. 13 Jan., 1966 [3 Feb., 1965], No. 4685/65. Heading C2C. 4 - (4<SP>1</SP> - Pyridyl) piperidine is prepared by hydrogenating 4,41-bipyridyl in a mineral acid medium containing an amount of mineral acid which is less than two equivalents for each mole of the bipyridyl used.
Patent GB-420062-A (GB)
Title: Improvements relating to cellular floors for buildings
IPC: E04B5/48
Filed: 1933-02-16
Abstract: 420,062. Metal floors; girders; slabs. ROBERTSON CO., H. H., Grant Building, 3rd Avenue, Pittsburg, U.S.A.-(Assignees of Young, J. H.; 370, Jefferson Drive, Mt. Lebanon, Pittsburg, U.S.A.) Feb. 16, 1933, No. 4745. Convention date, April 30, 1932. [Classes 20 (iv) and 87 (i)] A floor comprises beams 12, 13 arranged, as shown in plan in Fig. 1, to form openings or panels 14 adapted to be covered by a plurality of pre-formed metal units 18, each of which is formed with a plurality of hollow cells closed in cross-section to constitute hollow load-supporting beams, and the units are disposed end to end so that a plurality of hollow cells are in alignment. Each unit 18 comprises, as shown in Fig. 4, a substantially flat upper plate and a corrugated under plate 19 welded thereto continuously or at spaced intervals to form the hollow cells 22, and the length of the units corresponds to the distance between the beams. The upper and lower plates are of the same length, although one end of the upper plate projects beyond the corresponding end of the lower plate so as to provide for interfitting the units end to end. Adjacent units interfit side by side by means of a depending flange 24 on one unit engaging a trough-shaped extension 26 on the adjacent unit. The adjacent ends and sides of the upper plates are welded together in position. The units may be supported by the lower corrugated plates 19 resting on the upper flanges of the beams so that the hollow cells form continuous unobstructed ducts, or the upper plates may be arranged on a level with the upper flanges of the beams, the units being then either supported by angle members 29 secured to the beams 12 as shown in Fig. 6, or directly by the upper flanges of the beams as shown in Fig. 10. In a modification shown in Figs. 8 and 9, the upper plate may be provided with depressions 42. The thickness of the metal employed for the units is at least 0À06 inch, and the height of the walls of the hollow cells is at least 3 inches. The width, depth, lateral spacing, and thickness of the walls of the cells are correlated to produce a floor having a section modulus of at least 1 inch cubed per foot width. Holes 40, Fig. 4, are provided in the side walls of the corrugations of the lower plate at the end uncovered by the upper plate to allow the passage of wires 38 adapted to support a ceiling frame 39. Reference has been directed by the Comptroller to U.S.A. Specification 1,828,842, and British Specifications 377,235 and 400,924.
Patent GB-439603-A (GB)
Title: Packing material for perishable goods
IPC: B65D65/42
Filed: 1935-02-15
Abstract: 439,603. Wrapping-materials. ALUMINIUMWERK TSCHEULIN GES., Teningen, and CREAMER, K., 14, M³hlestrasse, Teningen, Baden, Germany. Feb. 15, 1935, No. 4873. Drawings to Specification. [Class 94 (i)] [See also Groups VIII and XXII] A wrapping-material comprises aluminium foil coated on one or both sides with a resin, to which cellulose derivatives, emollients, fillers and the like may be added. The coating may be by brushing, dipping or spraying, and may be applied to foils which have already been provided with a known coating. The foil may be covered with paper or transparent foils. When used for wrapping, the resin adheres to the article wrapped.
Patent GB-1096751-A (GB)
Title: Improvements in liquid-cooled dynamo-electric machines
IPC: E04D13/155
Filed: 1965-02-04
Abstract: 1,096,751. Liquid cooling of dynamo-electric machine rotors. LICENTIA PATENT-VERWALTUNGS G.m.b.H. Feb. 4, 1965 [Feb. 4, 1964], No. 4896/65. Heading H2A. A dynamo-electric machine has a liquidcooled rotor comprising half-turn non-stranded conductors 1, 2 mechanically interconnected beyond the rotor core slot ends to form complete turns electrically connected in series, and each individual half-turn conductor comprises longitudinal outgoing and return passages extending substantially the length of the halfturn and so interconnected at one end of the half-turn that coolant liquid fed to the other end flows in a closed path outwardly along the half-turn and then back to discharge at the feed end. The outgoing passage 5 is centrally between two return passages 4, 6, and the interconnection is by a cross passage (12), Fig. 3, the liquid supply and discharge being via respective tubes 7, 10 supported by lugs 11, electrically insulating sleeves 19, Fig. 5, and manifolds 17, 18 each common to all the respective tubes of a coil 15, 16. The joints 3 between halfturns are lap, silver plated, and secured by bolts 13 tightened when hot.
Patent GB-549389-A (GB)
Title: Improvements in or relating to devices for counting mechanical operations
IPC: G06M1/04
Filed: 1941-04-16
Abstract: 549,389. Gramophones. SHAW, M. N. H. April 16, 1941, No. 4941. [Class 40 (ii)] [Also in Group XIX] In apparatus for playing a sound record by means of a gramophone sound box or pick-up device, a counting device is provided to indicate the number of times the reproducing needle has been used. The counter comprises a ratchet wheel 1, Figs. 1 and 2, an actuating pawl 3, a holding pawl 4 for retaining the wheel in adjusted position, and a releasing means 5 arranged to move the under pawl against the outer pawl thereby to release both pawls to permit the wheel to return to initial zero position under the action of a restoring spring 2. The device is mounted on a base plate 7 which is secured to the motor board of the gramophone. A spindle 14 on the base plate carries a spacing washer 15, a lever 16 carrying the actuating pawl, a flange 1 integral with the spindle, a hub 18 to which the ratchet wheel 1 and spring 2 are secured, and a retaining spring washer 19. The lever 16 is formed with a projection 25 bearing on the base plate, and is connected by a slip coupling or other lost motion device 27 to the tone arm. Movement of the lever 16 is controlled by a spring 28 and is limited by lugs 29, 30 arranged to engage the sides of the base plate 7. The release lever 5 is rotatably mounted on a boss 32 and is rocked by a flattened portion 39 on the spindle 40 when the knob 6 is turned. Indications 46 on the ratchet wheel 1 are viewable through an aperture 48 and a warning indication such as a red patch 49 is exhibited when the needle should be changed. The ratchet wheel 1 is formed with a mutilated toothed portion 50 that further actuation is prevented when the limit has been reached. The ratchet wheel 1 on reaching this position may be provided with means arranged to open the circuit of the gramophone driving motor or to actuate a device preventing operation of the machine. Specifications 358,324, 417,146, [both in Group XIX], and 460,897 are referred to.
Patent GB-650471-A (GB)
Title: Pulse-time demodulator
IPC: H03K9/06
Filed: 1948-02-19
Abstract: 650,471. Pulse modulation. BENDIX AVIATION CORPORATION. Feb. 19, 1948, No. 4957. Convention date, Feb. 27, 1947. [Class 40 (v)] For demodulating a time-modulated pulse train, the pulses control a saw-tooth wave generator and shaper, the output of which is momentarily applied to a storage circuit near the peak of each of the saw-tooth excursions. As shown, the pulses from source 10 control the discharge valve 12 of the saw-tooth generator 12, 18, 21, the output of which is shaped by circuit 24, 25, which has a time constant longer than that of circuit 18, 21, and which forms the cathode impedance of the cathode-follower stage 20. The storage condenser 36 is connected in parallel to condenser 24 each time a pulse from source 10 renders conducting the thermionic switch 27, 29. A demodulated stepped signal wave thus appears across condenser 36 and is fed through a cathode-follower 33 to the output terminals 37.
Patent GB-470769-A (GB)
Title: Improvements in or relating to apparatus for use in the discharge of materials from retorts and the like
IPC: C10B33/02
Filed: 1936-02-20
Abstract: 470,769. Discharging retorts. MOORE, S. Feb. 20, 1936, No. 5104. [Class 51 (ii)] In an oscillating-pusher discharge device for retorts, the pusher plate 9 operates within a passage 6 extending between inlet and openings 4a, 7 in a circular casing 4 and defined by the outer wall 4d of the casing and a concentric plate 8. The plate 8 is connected to the wall 4b of the inlet 4a by a plate 4c which is inclined in a direction opposite to that of the pusher plate 9. The latter is mounted between curved members 9a carried by radial arms 9b which are secured to a shaft 11 adapted to be oscillated through chain-andsprocket gearing 18, 19 by a reciprocated ram. The lower part of the casing 4 contains water for sealing and quenching purposes, while a container 14, having a hinged cover 14a, is provided to direct the discharged material on to a conveyer 15. The invention is described as applied to the lower end of a discharge passage 3 common to a number of superposed horizontal retorts, but it may also be used in connection with vertical and inclined retorts.