baber/WOPTO huggingface dataset:
Patent GB-462752-A (GB)
Title: Improvements in or relating to time-controlled driving mechanism
IPC: G04C15/00
Filed: 1935-10-02
Abstract: 462,752. Time - controlled driving mechanism. FERRANTI, Ltd., and GRUNDY, E. Oct. 2, 1936, No. 27173. [Class 139] Driving mechanism in which an escapementgoverned power source, such as a spring x, is intermittently connected to a main load a (spindle of time switch or clock), includes also an alternative load (air fan connected to 13) to which the spring x is connected automatically whenever the spring x is disconnected from main load a. In the arrangement described, the shaft a is normally driven by a self-starting synchronous motor m and the spring x drives the air fan. Whenever current fails the reserve spring drive x is connected to shaft a. The time switch spindle a is connected by train b, c, d, e, j, k and wheels f, g to one sun-wheel h of a differential. Motor m is connected to wheel e by train n, o, p, q, r, s, t, u and pawl and ratchet v, w. The motor also, through wheels 2 and 3, winds up the spring x which latter is connected by wheels 4, 5 and 6 to an escapement. Wheel 6 is also connected by wheel 21 to the planet wheel carrier 7 of the differential. The other sun-wheel 8 is geared by wheels 9-13 to the air fan constituting the alternative load. A ratchet 14 is rigid with sun-wheel h and coacts with a pawl 15 ; and a ratchet 16 rigid with sun 8 coacts with pawl 17. Pawls 15 and 17 are rigid with a spindle 18 which is rockable, against spring 20, by a solenoid 19 energized by current flowing through motor m. Ratchets 14 and 16 operate in opposite senses. Normally, with motor m running, solenoid 19 rocks shaft 18 so that part 15 holds ratchet 14 and sun-wheel h is immobilized ; motor m drives shaft a and winds spring x and the latter causes planet carrier 7 to rotate sun-wheel 8 and train 9-13 to the alternative load. When current fails, the pawl 15 is lifted and pawl 17 immobilizes ratchet 16 and sun-wheel 8 ; spring x then drives carrier 7 and sun-wheel h which operates through free wheel j, k to rotate the shaft a.
Patent GB-602764-A (GB)
Title: Improvements in or relating to centrifugal governors
IPC: G05D13/10
Filed: 1945-10-17
Abstract: 602,764. Centrifugal governors. HANSEN, H. C. Oct. 17, 1945, No. 27247. Convention date, Jan. 28, 1944. [Class 57] A centrifugal governor has sockets 20, 22 mounted freely around the shaft 10 and out of contact with it but connected with it through a diaphragm system 32, 34 unyieldingly transmitting the rotation of the shaft but permitting resilient movement of the socket along the shaft. The system is connected to a bushing 26 rigidly connected to the shaft, to which bushing the ends of springs 12 carrying weights 14 are connected, the other ends of the springs being connected to the socket. The resistant action of the diaphragms may be assisted by a helical spring 44 which bears on a shoulder formed on the connecting member 24 between the two sockets 20, 22 of the socket. An adjustable brake 18 is also provided.
Patent GB-1489158-A (GB)
Title: Method for clay brightness utilizing magnetic separation
IPC: B03D1/014
Filed: 1975-06-27
Abstract: 1489158 Kaolin clay ANGLO-AMERICAN CLAYS CORP 27 June 1975 [8 Oct 1974] 27284/75 Heading ClA Kaolin clay is brightened by blunging and conditioning an aqueous dispersion thereof for a time sufficient to dissipate at least 10 h-p-hrs. of energy per ton of solid, removing titaniferous impurities from the resulting slurry by froth flotation, and then passing the product through a slurry-impervious ferromagnetic matrix, e.g. steel wool, positioned in a magnetic field of average intensity 7 to 22 kilograms, the retention time being at least 15 seconds. The slurry typically contains 15-45% solids when passed to the magnetic separator and contains 35-60% in the blunging and condition steps. The slurry from the magnetic separator may be flocculated, leached, washed and dewatered. Blunging and conditioning may be carried out by agitating under alkaline conditions in presence of sodium silicate. A water-soluble salt of polyacrylic or polymethacrylic acid, or a collector agent, such as oleic acid, may be present during blunging and conditioning.
Patent GB-941745-A (GB)
Title: A propellent charge containing oxidizer and copolymer
Inventor: ZUCROW MAURICE JOSEPH
IPC: C06B45/10
Filed: 1961-07-27
Abstract: A solid propellent charge is obtained by dry milling into an elastomeric binder selected from polyisobutylene, butyl rubber, butadienestyrene copolymers, polyalkylene sulphide polymers, butadiene-acrylonitrile copolymer, highly polymerized polyvinyl alcohol, and chloroprene polymers, a stable finely divided inorganic oxidizer which is a chromate, permanganate, nitrate, chlorate or perchlorate, and thereafter curing the binder.  A preferred composition is 76% by weight of potassium perchlorate and 24% of polyisobutylene.  The composition may be used as a fuel in a socket motor as described in Division F3.
Patent GB-1369584-A (GB)
Title: Distance measuring instruments
IPC: G01B3/20
Filed: 1971-09-06
Abstract: 1369584 Distance measurement E S PERRY Ltd 6 Sept 1971 [5 June 1970] 27409/70 Heading G1M In a distance measuring instrument, e.g. a caliper as shown or a depth gauge, in which a member 10 is slidable along a scaled elongate member 4, a wedge 16 is provided between the two members which is slidable in relation to them along a channel in the member 4 in order to releasably lock the members 4, 10 together. The wedge preferably has two upstanding ends 20, 22 for ease of manual adjustment. The instrument can be made of metal or plastics.
Patent GB-483272-A (GB)
Title: Improvements in piston packing rings and in the manufacture thereof
IPC: F16J9/26
Filed: 1936-10-10
Abstract: The outer layer of a composite piston-ring is made of a cast iron alloy containing 0,6-2,5 per cent of boron, with or without nickel. The inner part of the ring may be made of spring steel containing 0,8 per cent of carbon, or of chromium molybdenum steel containing 0,5 per cent of carbon, and may be hardened or tempered before being combined with the outer part; or the composite rings may be stacked in a pile and heat-treated from inside while the outside is surrounded by a cooling jacket.  In making the cast iron alloy, the boron may be introduced as ferro-boron or borax.
Patent GB-522511-A (GB)
Title: Improvements in or relating to electric motors
IPC: H01H67/06
Filed: 1938-10-10
Abstract: 522,511. Motors. STANDARD TELEPHONES & CABLES, Ltd., GRACE, B. B., and SMITH, C. P. Oct. 10, 1938, Nos. 27539/39 and 27616/39. Divided out of 522,467, [Group XXXIX]. [Class 35] A motor forming part of a selector switch for an automatic telephone exchange of the type comprising an armature wheel with teeth of magnetic material co-operating with a toothed field magnet the circuit of which is interrupted by a switch operated by the armatures is provided with a latching device which causes the armature to stop in such a position when the current is cut off that the motor restarts when the current is switched on. The Figure shows an arrangement comprising a field magnet 13 with toothed arcuate pole - pieces 131, a toothed armature-wheel 9, and a cam wheel 10 which makes and breaks the field circuit through the contacts 15, 16. To start the motor magnet 22 is energized closing a switch 29 in the fieldcircuit and withdraws a latch 19 from the teeth of the wheel 9. When the circuit of the magnet is broken the armature continues to rotate until the spring 21 on the latch 19 is clear of a tooth face, when the latch drops into position, holding the tooth between the spring 21 and a piece 20 on the latch. The armature core and pole-pieces may be formed of a single casting, the teeth being machined.
Patent GB-480374-A (GB)
Title: Improvements relating to soldering devices
IPC: B23K3/047
Filed: 1936-10-10
Abstract: 480,374. Electric soldering tools. BRITISH INDUSTRIAL SOLVENTS, Ltd., and BROWN, J. Y. Oct. 10, 1936, No. 27555. [Class 83 (iv)] An electric soldering-device, particularly for jointing tubes for electrical conduits, comprises work-gripping jaws provided with insulated electric heaters, which are mounted on a pair of handles arranged scissors-wise and having releasable means to lock the jaws in closed position. The device comprises jaws 12, 13 of metal of high conductivity such as aluminium, connected through base-plates 7 to bosses 8 pivoted at 3, 4 to the handles 6, 5 of a tongs. Between the jaws and the plates 7 are sheets of asbestos 11 and flat resistance elements consisting of wire or tape wound on mica or the like so that they are electrically insulated from the jaws. The terminals are connected in junction boxes 14, provided with flexible leads 15, 16 and plug 27<1>. The elements are arranged in parallel or series and switches may be provided to vary the circuit. The heating elements may be replaced by a primary of a transformer so that current is induced in the work. A sliding stirrup 23 or pivoted catch is provided to hold the levers closed. The tubes 27, 28, Fig. 3, together with the sleeve 29 are mounted in the recesses 17, 18 in the jaws which are grooved on their upper ends at 30 so that solder and flux may be applied, which passes through holes 31 in the sleeve to form the joint. The jaws may be provided with detachable inserts 19 or 20 to suit tubes of different sizes. The handles may be tubular or of channel section to contain the flexible leads and may be covered with insulation or earthed.
Patent GB-983690-A (GB)
Title: Vacuum separator
IPC: B04B5/08
Filed: 1964-01-07
Abstract: Dissolved moisture and air as well as free water and solids are removed from spent transformer oil by first heating the oil in a chamber 4, introducing the heated oil into a centrifuge 1 in which the free water and solids <PICT:0983690/C4-C5/1> are separated and removed continuously by means of a paring device, and discharging the oil still containing the dissolved moisture and air into a vacuum chamber 3 where the dissolved moisture is evaporated and removed with the air via a suction pipe 11, the purified oil being removed through an outlet device 9, 10.
Patent GB-261173-A (GB)
Title: Improvements in racquets for lawn tennis and similar games
IPC: A63B51/08
Filed: 1925-11-03
Abstract: 261,173. Dunlop Rubber Co., Ltd., and Mortier, G. A. Nov. 3, 1925. Rackets. - Relates to a tennis or like racket of the kind having straight strings a, b disposed at an angle to the axis of the racket, and consists in that the strings are close together at the centre of the racket and are spaced progressively more and more widely apart towards the sides thereof. The strings are preferably arranged at an angle of 45‹ to the axis of the racket. One or more longitudinal strings c, adjustable by wing nuts e, are arranged on either side of the axis of the racket to prevent warping.
Patent GB-1010013-A (GB)
Title: Means for enabling two members to be interconnected at an adjustable distance
Inventor: DICKINSON CLIFFORD JOHN
IPC: F16B5/02
Filed: 1964-07-04
Abstract: 1,010,013. Inspection panels. UNBRAKO SOCKET SCREW CO. Ltd. July 4, 1964, No. 27665/64. Heading E1G. [Also in Division F2] To enable an aircraft skin 10 and a panel 14 (for an opening 13 in the skin 10), or any two members, to be connected together at a predetermined distance from one another, e.g. to make the panel 14 flush with the skin 10, a screwed bush 23 is adjustable in the ball portion 17 of a ball joint 17, 18. A nylon insert 24 locks the bush 23 in the adjusted position to which it is screwed, by means of tool-engaging surfaces 25, into the ball portion 17 and the latter also acts as a nut for a screw 22 which attaches it to the panel 14. It has a collar 27 which may be radially distorted to lock on the screw. By virtue of a projection 20 and a co-acting groove 21, the ball nut 17 cannot rotate axially in its cage 18 and the latter bears nuts 19 by which it is secured to a frame wall 12 of the opening 13. The ball nut 17 can tilt in its cage 18 to enable the screw 22 and the threaded bore of the nut to be aligned even if the closure 14 is curved or the connected members are differentially stressed. One central screw or several screws may be used to secure a panel and the latter may be sealed by a compressible ring at its edge.
Patent GB-812727-A (GB)
Title: A new process for the preparation of pseudo isomethyl ionone and the isomethyl ionones
Inventor: BEETS MUUS GERRIT JAN
Filed: 1956-09-11
Abstract: Pseudo isomethyl ionone is obtained from mixtures thereof with pesudo normal methyl ionone which are made by condensing citral with butanone in the presence of a condensation agent consisting of a potassium cation or an organic cation in which all the valencies of the central atom are occupied by substituted or unsubstituted hydrocarbon groups, and of a basic anion with a base strength equal to or higher than the base strength of the cyanide anion and in the presence of a medium in which the solubility of the reactants is sufficiently high to allow the reaction to take place at a practical rate.  The pseudo isomethyl ionone so obtained may be cyclized by known methods to give alpha or beta isomethyl ionone, or the mixture of pseudo isomethyl ionone with the normal isomer may be cyclized to give a mixture of the corresponding alpha or beta methyl ionones, from which the alpha or beta isomethyl ionone may be separated.  In the condensation agent the organic cation may be quaternary ammonium such as tetramethyl, tetraethyl, trimethyl phenyl, trimethyl benzyl, triethyl benzyl, trimethyl myristyl and di-isobutyl cresoxy ethoxy ethyl dimethyl benzyl ammonium, benzyl pyridinium, and ethyl quinolinium, quaternary phosphonium such as triethyl benzyl phosphonium, ternary sulphonium such as trimethyl sulphonium or methyl benzyl butyl sulphonium, quaternary arsonium such as triphenyl methylarsonium, or quaternary stibonium.  It is indicated that the cations of lithium, sodium, rubidium and caesium are unsuitable for use in the reaction.  The anions mentioned are hydroxide, alcoholate and cyanide.  It is stated that halide and acetate anions are inactive.  The condensation agent may be made by addition of moist silver oxide or an alkali-metal hydroxide, alcoholate or cyanide to a solution of a quaternary ammonium salt in water, alcohol or pyridine, or by treating tertiary amines, phosphines, arsines or stibines or a secondary sulphide with an alkyl, aryl or aralkyl halide, e.g. triethylamino with benzyl chloride, triethyl phosphine with benzyl chloride, triphenyl arsine with methyl iodide, or methyl benzyl sulphide with butyl iodide, followed by addition of an alkaline agent such as potassium hydroxide or sodium methoxide.  The condensation may be conducted in a medium of aliphatic alcohols containing from 1 to 4 carbon atoms such as methanol, ethanol, or isopropanol, ethyl butyl ether, pyridine, or benzyl alcohol. Water may or may not be present.  The mixture of pseudo methyl ionones obtained may be cyclized with phosphoric acid or boron trifluoride to give alpha methyl ionones.  Separation of the isomeric pseudo compounds or of the isomethyl ionones from the mixed ionones obtained by cyclization may be effected by fractional distillation.  The proportion of pseudo isomethyl ionone in the mixture obtained from the condensation is determined by semicarbazide formation.  Examples are given.
Patent GB-656691-A (GB)
Title: Improvements in wheels incorporating disc clutches
IPC: F16D25/0638
Filed: 1948-10-26
Abstract: 656,691. Friction clutches. MASSARDIER, J. Oct. 26, 1948, No. 27805. Convention date, Oct. 30, 1947. [Class 80(ii)] A toothed wheel a is clutched to a hubmember f by two clutch-packs l arranged one on each side of a pair of interfitting expander-pistons h, i, slid'ably keyed or splined at j on the hub-member, and carrying the flat inner discs of the respective packs, the pistons being urged axially apart for clutch-engagement, in opposition to return tension coil-springs o, by fluidpressure applied between them through a duct f<SP>3</SP>.
Patent GB-160745-A (GB)
Title: Improvements in twist tubes for spinning machines
IPC: D01H7/92
Filed: 1920-10-01
Abstract: 160,745. Sõchsische Maschinenfabrik vorm. R. Hartmann Akt.-Ges. March 23, 1920, [Convention date]. Twist tubes for spinning carded yarn, and especially for use in ring frames, are provided with a notch a having wedge-shaped lateral surfaces, as shown in Fig. 3, so that when the tube is rotated a suction effect is produced which draws the yarn through the tube automatically. The upper end of the tube is provided with a notch so as to produce, in known manner, an oscillatory motion of the yarn.
Patent GB-494569-A (GB)
Title: Improvements in or relating to the spindles of ring-spinning, doubling and like machines
IPC: D01H7/04
Filed: 1937-04-24
Abstract: 494,569. Mounting spindles in ring frames. PLATT BROS. & CO., Ltd., and HUGHES, J. April 24, 1937, No. 27896/38. Divided out of 494,512. [Class 120 (ii)] The spindle rails of ring spinning, doubling and like machines are provided with recesses 11 to accommodate the spindle bolsters so that the driving-tapes just clear the rails and stability is ensured at high speeds. The spindles are held down by pivoted latch plates 21 at the rear of the rail. The bolsters project into an oil trough 19.
Patent GB-1235362-A (GB)
Title: Intermittent drive mechanism and method of making the same
Inventor: PETROFF ROBERT JOHN
IPC: F16H27/04
Filed: 1968-06-12
Abstract: 1,235,362. Intermittent gearing. R. J. PETROFF. 12 June, 1968 [12 June, 1967], No. 27956/68. Heading F2Q. A rotatable turret 22 having equi-spaced radial spindles 26 rotatably supporting rollers 25 is intermittently driven by successive engagement of the rollers by the cam track of a cam 12 rotatable about a cam axis 10a perpendicular to and offset from the turret axis 23a, the cam track providing turret dwell and turret movement to a successive dwell, the roller profile 29e (Fig. 3B) and the transverse cam track profile 40p being without points of inflection and having slightly differing radii of curvature, e.g. 3-5%, to give theoretical rolling point contact, and the cam track width providing clearance between the roller and the track idle sidewall at all points. As shown, the roller profile is convex and the cam track profile is concave, but the track profile may be straight (Fig. 11, not shown), or the roller profile may be straight frusto-conical and the cam track profile convex (Fig. 12, not shown), or the roller profile may be concave and the track profile convex (Fig. 12A, not shown). The cam track is cut by a cutter 40 driven by a high-speed motor 42, and having a cutter feed device 42a, the cutter assembly being pivoted about an axis 43 coincident with or close to the axis 23a of the turret. The difference in diameter between the roller and the cutter at line 29g is equal to the required clearance between the roller and the cam track idle sidewall. Preferably the cutter axis 41 is parallel to the required roller axis 26a and axis 43 is offset from axis 23a by 0.002 to 0.005 inch, but if axes 23a, 43 are coincident, axis 41 will be at a small angle to axis 26a.
Patent GB-1181623-A (GB)
Title: New Antibiotic NK-1001 and processes for the production of the same
IPC: C07G11/00
Filed: 1968-06-13
Abstract: 1,181,623. Antibiotic NK-1001. MEIJI SEIKA KAISHA Ltd. 13 June, 1968 [24 June, 1967], No. 28147/68. Heading C2A. Antibiotic NK-1001 is produced by cultivating a kanamycin-producing strain of Streptomyces kanamyceticus under aerobic conditions in a culture medium containing assimilable sources of carbon and nitrogen in the presence of streptidine; 0À05 to 1À0% and preferably 0À1 to 0À5% by weight of streptidine is added to the culture medium, preferably after 80 to 90 hours cultivation, the duration of cultivation being 4 to 8 days. Alternatively, an antibiotic NK-1001-producing mutant of Streptomyces kanamyceticus ATCC 21252, namely mutant ATCC 21257, may be cultivated in conventional medium, i.e. in the absence of streptidine. Antibiotic NK-1001 may be isolated from the clarified broth by adsorption on "Amberlite" IRC-50, followed by elution with 0À5N aqueous ammonia, concentration, dissolution in water, treatment with active carbon, filtration, treatment with "Amberlite" CG-50 and elution with 0À3N aqueous ammonia. After freeze-drying, the power was dissolved in water and methanol added to produce crystals of NK-1001. Antibiotic NK-1001 is a basic, broad spectrum antibiotic related to the kanamycins in that it consists of 1 mol. deoxystreptamine, 1 mol. 6-amino-6- deoxy-D-glucose and 1 mol D-glucose; empirical formula C 18 H 35 N 3 O 12 .H 2 O; shows no U.V. spectrum; infra-red spectrum as in Fig. 2; [α]<SP>21</SP> D  = + 132 degrees (1% aqueous solution); colourless needles m.pt. 238-242 C.; soluble in water, aqueous methanol, aqueous ethanol; insoluble in anhydrous methanol or ethanol, ethyl acetate, butyl acetate and benzene. Antibiotic NK-1001 may be extracted from the culture broth with an organic solvent containing a carrier such as p-toluene sulphonic acid or lauric acid.
Patent GB-846364-A (GB)
Title: Improvements in or relating to can storage racks
IPC: G07F11/34
Filed: 1958-09-02
Abstract: 846,364. Dispensing articles. TYLER REFRIGERATION CORPORATION. Sept. 2, 1958 [Oct. 2, 1957], No. 28188/58: Classes 27 and 116. In a can storage rack comprising a serpentineshaped track down which the cans roll, each side of the track is formed by a frame 10, Figs. 1 and 5, comprising a frame member 14 supporting a serpentine shaped wire 16 from which is supported track members 28 having a pair of wires parallel to the transverse runs of the wire 16, the latter wires forming the side restraining members of the tracks. The frames 10 are connected together to form one or more tracks by horizontal ties 58 spaced apart by vertical rods 60. The lower ends of the tracks form a delivery ramp 44 provided with a Geneva mechanism type blocking device 74 which releases one can at a time, the device being actuated by a thumb-operated slide 100, preferably coin freed, which is pushed inwards to operate a rack and pinion 84, 82, which operates the star-wheel 72 through a one-way clutch 90. A single push member 100, mounted on a carriage 06 slidable along a rod 92, is provided for selecting cans from a number of side-by-side tracks, the member 100 being slid along a slot 102 provided with detents 106 indicating the correct location of the member for operating the blocking member of each stack.
Patent GB-943973-A (GB)
Title: Improvements relating to poultry plucking apparatus
Inventor: COPE CECIL JOHN
IPC: A22C21/02
Filed: 1961-07-21
Abstract: 943,973. Plucking poultry. COPE WHELON & CO. Ltd. July 23, 1962 [July 21, 1961], No. 28305/62. Divided out of 943,972. Heading A2U. Poultry are plucked by flexible flails or fingers 1 on a shaft 3 rotating anti-clockwise within a fixed casing 4 provided on its inner surface with rubber fingers 9. The fowl receiving chamber 5, and gap between the flails 1 and casing 4, taper progressively towards a grid outlet 10 for feathers beneath which is a receptacle 11 therefor with a hinged flap 12. Entry and exit flaps 14, 15 to the casing are also hinged. The shaft 3 is driven from a motor 16 by a belt 17. Water and/or hot air may be introduced into the casing during a plucking operation.
Patent GB-794878-A (GB)
Title: Improvements in the stabilisation of low pressure polyolefines
IPC: C08K5/39
Filed: 1956-09-17
Abstract: Low-pressure polyolefins, e.g. polyethylene, are stabilized with a tetra-alkyl thiuram disulphide.  Specified disulphides are the tetramethyl, tetra-ethyl and tetra-propyl derivatives, and they may be present in amounts as low as or less than 0.01 per cent, and usually not more than 1 per cent is used.