baber/WOPTO huggingface dataset:
Patent GB-713319-A (GB)
Title: Improvements in and relating to football bladders, and valve sealing means therein
Inventor: MATTHEWS EDWARD WILLIAM ROLIE
IPC: F16K15/20
Filed: 1951-07-09
Abstract: 713,319. Inflating-valves. TUCK & CO., Ltd. July 8, 1952 [July 9, 1951], No. 18508/53. Divided out of 713,262, [Group XV]. Class 135. [Also in Group XV] A non-return valve, more especially for football bladders, comprises a tubular housing 2 projecting into the bladder with which it is integrally moulded, and shaped with an internal step to receive a tubular plug of rubber &c. having a closed inner end 3 of spear-head formation with a radial conduit or conduits 6 normally closed by the housing. The housing may be joined to the bladder by an edge to edge, seamless method according to Specification 713,262, [Group XV]. Specification 690,934 also is referred to.
Patent GB-1386397-A (GB)
Title: Flame-retardant acrylic polymer composition
IPC: C08L33/08
Filed: 1971-06-02
Abstract: 1386397 Wet spun acrylic fibres COURTAULDS Ltd 1 June 1972 [2 June 1971] 18618/71 Heading B5B [Also in Division C3] Filaments are wet-spun from a dope containing a conventional acrylonitrile polymer (94 wt. per cent acrylonitrile, 5 wt. per cent methyl acrylate and 1 wt. per cent itaconic acid) and, as flame-retardant agent, an acrylonitrile telomer obtained by a polymerization process using carbon tetrabromide as chain transfer agent. The filaments are stretched 8 times in steam to a final denier of 3. Their tenacity is 2À5 g./den., extensibility is 41% and Br content is 4% by weight.
Patent GB-250444-A (GB)
Title: Improvements in mincing or cutting machines
IPC: B02C18/30
Filed: 1925-07-22
Abstract: 250,444. Hottmann, C. W. July 22, 1925. Mincing.-A mincing-machine, of the type having a forcing-screw rotating in a barrel and cutters rotating against a perforated disc, is arranged with its feed opening or hopper at the side and the material is forced through the hopper by a helical feed conveyer rotating in an open trough attached to the hopper. As shown in plan in Fig. 1, an open trough 21 is attached at 34 to the hopper 33 and a helical feed conveyer 27 having a hollow centre rotates therein. The conveyer is engaged and driven by a shaft 24 which is rotated from the main shaft 10 through spur and bevel gearing 14, 15, 17, 18, 22, 23. The shaft 24 is journaled in an end plate 28 of the trough 21, which plate is pivoted at 31 to the trough and is normally locked in the inoperative position. The plate 28 may be swung into the dotted position when the conveyer 27 may be removed axially. In a modification, the feed hopper 33 is made integrally with the end plate 29 of the trough.
Patent GB-1076556-A (GB)
Title: Dispensing machine for articles
Inventor: CASEY CHARLES LEO
IPC: G07F11/12
Filed: 1965-05-04
Abstract: 1,076,556. Coin-freed vending machines. RELIABLE ENGINEERING CO. May 4, 1965, No. 18660/65. Heading G4V. A vending-machine comprises reserve stacks of articles 28, 31 in shoots 33, 34 which pivot inwardly to feed two centre stacks on depletion of the centre stacks below fixed walls 42 normally supporting the reserve stacks. The articles are alternately ejected from the centre stacks to horizontally-spaced dispensing chambers 49, 50 by a pusher (46) (Fig. 2, not shown) actuated by a hand-operated coin-freed lever 52. The shoots are locked in their inwardly swung positions by pivoted latching plates 58.
Patent GB-1506798-A (GB)
Title: Torsional vibration dampers
IPC: F16F15/14
Filed: 1976-05-06
Abstract: 1506798 Torsional vibration dampers WALLACE MURRAY CORP 6 May 1976 [12 May 1975] 18682/76 Heading F2S In a torsional vibration damper for a crankshaft, an annular hub member 12-18 has a groove and an axially extending projection 18, and an annular inertia member 30-34 has a groove and an axially extending projection 34, the projection on each member co-operating with the groove on the other to define a serpentine passage 40 containing viscous liquid, and the passage being closed at each end by an annular elastomeric member 42, 44 acting between the hub and inertia members.
Patent GB-369105-A (GB)
Title: Attachment of turbine disc wheels
IPC: F01D5/02
Filed: 1931-06-29
Abstract: 369,105. Securing turbine discs on shafts. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, LAW, A. H., Stanford House, Stanford, near Rugby, and CHITTENDEN, J. P., South Lodge, Westfield, Rugby. June 29, 1931, No. 18726. [Class 80 (ii).] A turbine rotor which is shrunk to its shaft is secured to its shaft by a key a which is formed integrally with the rotor.
Patent GB-1025481-A (GB)
Title: Improvements in or relating to ventilating apparatus
Inventor: LOFTHOUSE KENNETH WADE
IPC: F24F13/078
Filed: 1962-05-15
Abstract: 1,025,481. Ventilators. BURGESS PRODUCTS CO. Ltd. May 15, 1963 [May 15, 1962], No. 18749/62. Heading F4V. Apparatus for distributing air to a room from a duct 18 comprises an elongated passage 10 having a discharge slot 16 and an air flow control damper 19 comprising a dished elongated perforated plate co-operating with an air inlet 17. The perforations in the plate occupy up to 25% of its area. An internally-threaded bush 23 fixed to the damper 19 is engaged by a threaded portion 24 of an adjusting spindle 25 carrying a manually operated adjusting wheel 26. The damper 19 is prevented from rotating by two plates 31 depending from the upper wall 13 of the passage 10. A perforated diffuser plate 34 extends along the length of the passage 10 above a pivoted distribution plate 20 whose movement is limited by a plurality of stops 22. The plate 20 is held in position by friction at its pivot 21 and is accessible for manual adjustment through the slot 16. Deflector plates 33, Fig. 2 (not shown), in the passage 10 assist diffusion of air towards the ends of the slot 16. The passage 10 is located above the ceiling of a room, the slot 16 being surrounded by a slotted facing plate 35 which is flush with the ceiling. Two passages 10 may be mounted one on either side of a strip light housing having side walls 38 the adjusting wheels 26 of the dampers 19 projecting through the top wall of the housing.
Patent GB-1040603-A (GB)
Title: Improvements in looms for weaving hair fabrics
IPC: D03D41/00
Filed: 1963-05-13
Abstract: 1, 040, 603. Looms for hair fabrics. G. A. GRANDI. May 13, 1963 [May 12, 1962], No. 18888/63. Heading D1E. A loom for weaving hair fabric employs a cylindrical container 15 in which the hairs are disposed vertically and urged against the wall of the container by a spiral spring 16. The container is slowly rotated by ratchet mechanism. As shown in Fig. 2, the container is on the slay and a weft inserter enters the bundle of hairs, grips one, and draws it into the shed. Alternatively, a shuttle having a gripper at each end of its front face may take hairs from two containers mounted one at each end of the loom frame at the beat-up position of the slay. The movable jaw 24a of the gripper, Fig. 6, has a tapered end with a concave tip which, in conjunction with a conical seat 19c on a bush 19 having a flared entrance 19b, enables a single hair to be gripped for a wide range of hair thicknesses.
Patent GB-222993-A (GB)
Title: Improvements relating to printing machines
IPC: B41F7/08
Filed: 1923-07-23
Abstract: 222,993. Evans, A. B. July 23, 1923. Rotary offset machines.-Continuous or composite designs are printed by offset cylinders e receiving the designs from plate cylinders a, b fitted with detachable plates c, d for printing a half of the design. If desired, more than two printing-cylinders may be so, arranged to print smaller fractions of the design than a half, the printing-cylinders being so arranged that a complete design is printed on the cylinder e. The cylinder e may co-operate with a second offset cylinder f, or direct with an impression cylinder as h, or two cylinders e may coact to print designs on opposite sides of the material.
Patent GB-685948-A (GB)
Title: Improvements in or relating to gas pokers
IPC: F24B15/00
Filed: 1950-07-28
Abstract: 685,948. Gas burners. MAIN, Ltd., R. & A., and WORTLEY, G. W. July 13, 1951 [July 28, 1950], No. 18954/50. Class 75(i) [Also in Group XXII] A gas poker has a burner head 15, Fig. 1, comprising two metal plates secured face to face and each formed, as by pressing, with a longitudinal depression and a series of transverse depressions so as to provide a longitudinal gas passage having a cylindrical end 16 for connection with a tubular handle 10, through which gas is supplied and transverse outlet passages 21, 21, Fig. 2, the sides of which merge in smooth curves with the sides of the longitudinal passage. Each longitudinal depression increases in width from the end 16 as shown at 17 and decreases in depth, and is divided into two parts 19, 20 by a ridge 18. The two plates are spot-welded together at the points 23 between the transverse depressions. The handle 10, which has a wire hand grip 11, is provided at one end with a circumferential groove 24 to receive a corresponding indentation of the cylindrical end 16 of the burner head, and is threaded at its other end to receive a threaded ring 25 connected by arms 26 to a gas nipple 27. In another construction the longitudinal recess in each plate is undivided by a ridge, and diminishes gradually in both depth and width from the gas inlet end. As an alternative the gas outlets may be provided in one edge only of the burner head.
Patent GB-1424960-A (GB)
Title: Liquid cr-stal display screens
IPC: G02F1/1341
Filed: 1974-05-01
Abstract: 1424960 Modulating light SIEMENS AG 1 May 1974 [20 Aug 1973] 19004/74 Heading H4F An electro-optic liquid crystal display cell is provided with at least one filling and/or venting opening which is closed by a ductile metal plug covered at its outer end with a coating of sealing material. As described, the cell comprises two spaced glass plates joined peripherally by a glass solder frame and having shaped electrodes on their inner surfaces. The filling opening or openings may be formed by cutting or grinding inwardly tapering channels of semicircular crosssection at the edge of the plate intended to be remote from the observer, so that the channel finally merges with the internal surface of the plate. In particular two such channels may be provided, one at the centre of each narrow side of the plate, or one in each of two adjacent corners thereof. The glass solder frame may be recessed adjacent each channel. Alternatively two circular openings may be drilled, at diagonally opposite comers of the cell, through the plate intended to be nearer the observer. The plug may be of In, Sn, Pb or Al and is slightly tapered. A film of Ag, Pt of Au may be deposited from suspension about each opening before the plates are joined, so rhat the outer end of the plug may be sealed with solder. Alternatively the plug is sealed with a synthetic resin adhesive.
Patent GB-1149669-A (GB)
Title: Dinucleoside phosphates
IPC: C07H19/04
Filed: 1966-04-29
Abstract: 1,149,669. ArabinofuranosyI nucleotides. UPJOHN CO. 29 April, 1966 [1 June, 1965], No. 19035/66. Heading C2C. The invention comprises arabinofuranosyl nucleotides and pharmaceutically acceptable salts of formulµ where Y is uracil-1-yl, thymin-1-yl, adenin-9-yl, 6 - mercaptopurin - 9 - yl, 5 - fluorouracil - 1- yl, 5 - chlorouracil - 1 - yl, 5 - bromouracil - 1- yl, 5 - iodouracil - 1 - yl, 5 - trifluoromethyluracil - 1 - yl, 5 - methylcytosin - 1 - yl or 3- methylcytosin - 1 - yl, Y<SP>1</SP> represents the same groups as Y in which any amino or imino groups are acylated and Ac, Ac<SP>1</SP>, Ac<SP>11</SP> are acyl radicals of C 2-12  hydrocarbon monocarboxylic acids or anisoyl. They may be prepared by reacting an N<SP>4</SP> - acyl - 1 - (2<SP>1</SP>,3<SP>1</SP> - di - O - acyl- # - D - arabinofuranosyl) cytosine - 51 - phosphate with to give (VII), and hydrolysing to (VIII) if desired. Bis - (1 - # - D - arabinofuranosylcytosin - 5<SP>1</SP>-yl) phosphate is prepared similarly. Antiviral compositions comprise the compounds of Formula (VIII) and their salts.
Patent GB-569400-A (GB)
Title: Improvements in or relating to apparatus for the visual inspection of internal cylindrical and other concave surfaces
IPC: G02B23/24
Filed: 1943-11-15
Abstract: 569,400. Optical inspection apparatus. AUTOMOTIVE PRODUCTS CO., Ltd., and MANDER, H. W. Nov. 15, 1943, No. 19036. [Class 97 (i)] An apparatus for inspecting internal, e.g. cylindrical, surfaces comprises a stem supporting a mirror, the surface of which is the whole or part of the external surface of a cone. As shown in Fig. 1, a conical mirror 31 having a vertex angle of about 90 degrees, is supported by a stem 10 and carries at its apex a lamp 15, the upper surface of which has an opaque cap 34. A cylinder 32 open at both ends is passed over the apparatus, which may be mounted on a stand 22 for angular adjustment, for inspection of the internal surface by the reflected rays 33. In a modification, Fig. 3, the conical mirror surface is releasably attached at its apex to a rod 47 fixed to a window 61 in a casing 46 carrying the lamp 15. The casing is inserted into a cylinder 32a having one open end and is attached to a handle 49 by a tube 45 bent at 48 so that the mirror surface may be viewed past the casing. A pointer may be fitted to the handle in such a manner that any feature or imperfection on the internal surface, brought into alignment with a mark on the mirror may be indicated on the outer surface of the cylinder.
Patent GB-239984-A (GB)
Title: Improvements relating to adjusting mechanism for musical string instruments
IPC: G10D3/14
Filed: 1924-08-11
Abstract: 239,984. Allen, H., and Allen, L. Aug. 11, 1924. Violin &c. tuning pins.-A peg d is inserted through a wormwheel f carried on a boss on a preferably tapered plate a, and an actuating worm carried in lugs g which prevents axial movement of the worm-wheel by its engagement with the concaved periphery thereof. The worm-wheel also has notches l any one of which can be engaged by a pin or projection m on the peg after the initial winding up of the loose string. Specifications 4525/76, 25189/99, 175,132, 187,099, and 197,585 are referred to.
Patent GB-1291964-A (GB)
Title: Improvements in and relating to plastics material snap-lock closure caps for bottles
Inventor: MINNS RONALD
IPC: B65D41/17
Filed: 1971-06-05
Abstract: 1291964 Snap-on caps RECKITT & COLMAN PRODUCTS Ltd 5 June 1971 19145/71 Heading B8T A plastics snap-on cap has an oval end portion 9 and a depending skirt 6 having an oval open end, the inside of the end portion 9 being provided with a ring and bead to engage a bead 13 on the neck of the container. To remove the cap, opposite sides of the skirt 6, corresponding to the major axis of the oval open end of the cap, are pressed so that the bottom of the skirt rides up the portion 12 of the bottle, and the bead on the cap slides past the bead 13. Alternatively, if the cap is turned, the bottom portions of the skirt 6 corresponding to the minor axis of the oval open end of the cap ride up the portion 12, and the cap is removed as before. The end portion 9 could be circular in shape (Figs. 1, 2, not shown). Integral ribs (10, 11) are provided to ensure proper alignment of the cap with the neck.
Patent GB-191535-A (GB)
Abstract: 191,535. Booth, H. C., and British Vacuum Cleaner & Engineering Co.. Ltd. Nov. 10, 1921. Cleaning, fluid pressure processes for.-Apparatus for removal of dust &c. from boiler or like flues in which is provided a suction-nozzle or nozzles each formed of concentric nozzles relatively adjustable and installed in the flue, comprises an air chamber communicating with the outer nozzle and furnished with an air inlet pipe the upper end of which is within the flue but protected against the ingress of dust. Fig. 1 shows a suction nozzle comprising a suction tube a which is adjustably screwed through the upper part of a casing b comprising a nozzle c and an annular air chamber f supplied by a. pipe g, the upper end of which is always above the level of the collected dust. A coupling d connects the suction pipe a with a dust chamber and an air pump. Fig. 2 shows a boiler flue cleaning installation comprising a series of' nozzles connected by pipes e to a suction main h. The top of each air inlet pipe g is turned downwards or provided with a cap by which falling dust is prevented from choking the pipes when the cleaning-apparatus is not working.
Patent GB-692699-A (GB)
Title: Improvements in velocity-modulated valves
IPC: H01J25/30
Filed: 1949-07-20
Abstract: 692,699. Electric resonators. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. July 20, 1949 [July 21, 1948], No. 19159/49. Class 40 (viii). [Also in Group XL (a)] A cavity resonator 8 which is included in a reflex velocity-modulated tube (see Group XL (a)) having no reflector electrode, to increase the bunching efficiency, has a cross-section as shown in Fig. 3. In an alternative form, Figs. 4a and 4b, the resonator is a solid cylinder having a series of parallel longitudinal resonant slots 9, the natural frequency of which can be adjusted by shifting one of the end-plates 10 which form capacitors at the ends of the slots.
Patent GB-1511012-A (GB)
Title: Semiconductor devices
IPC: H01L29/744
Filed: 1975-05-07
Abstract: 1511012 Semiconductor devices GENERAL ELECTRIC CO 7 May 1975 [28 May 1974] 19160/75 Heading H1K At least one PN junction of a semiconductor device is traversed by a plurality of columnar regions of recrystallized material each containing a uniformly distributed concentration of a deep level impurity. Preferably the columnar regions are formed by temperature-gradient thermomigration of a molten droplet comprising an alloy of the semiconductor (e.g. Si, Ge, SiC, GaAs or a II-VI compound) and the deep level impurity (e.g. Ag, Au, Pt or Cu), with the optional addition of, for example, Sn. Preferred conditions for the thermomigration process are disclosed. Fig. 5 shows a power rectifier formed of P, N and N+ regions 16, 18, 20 respectively, the central area of PN junction 22 being traversed by an array of recrystallized recombination regions 36 spaced by less than the minority carrier diffusion length, within which regions the junction 22 is displaced to the level 22<1>. The regions 36 may, as shown, extend fully across the semiconductor body 10, or they may extend only partly across as a result of a reversal of the direction of the temperature gradient halfway through the migration process. Concentric arrangements of recrystallized regions are also referred to. Fig. 6 shows a thyristor similarly provided with columnar recrystallized recombination regions 132 and, as in the first embodiment, these may extend only partly across the thickness of the device. Other thyristor modifications disclosed include a shorted-emitter device and a bilateral switch.
Patent GB-138271-A (GB)
Title: Improvements in dust separating devices for carburettors
IPC: F02M35/022
Filed: 1919-08-05
Abstract: 138,271. Caterpillar Tractors, Ltd., (Holt Manufacturing Co.). Aug. 5, 1919. Density separators. - A dust-separator for the air intake of carburettors comprises a vertical casing having a circular portion 10 which is attached at its axes 11 to the intake pipe and is provided at the uppermost point of its periphery with a tangential air inlet 12. The air drawn in under the engine suction is given a vortical motion and the particles of duet thrown off by centrifugal force pass into a V-shaped pocket 13 and collect in a tube valve 14. By rotating the valve the dust may be discharged through an outlet 15 without opening the pocket 13 to the atmosphere. The wall of the circular portion 10 is prolonged at 17 to deflect the air across the mouth of the pocket 13 and a baffle 17<a> is provided.
Patent GB-582630-A (GB)
Title: Improvements in or relating to cooling towers
IPC: F28F25/08
Filed: 1944-11-20
Abstract: 582,630. Treating liquids with gases. MITCHELL, F. G. Nov. 20, 1944, No. 19274/43. [Class 55 (ii)] [Also in Group XIII] Cooling elements comprising a liquid distribution stack in a cooling tower each comprise two sets of apertured walls 22-24, 26-29, the walls of each set being parallel and spaced apart, and the two sets of walls lying at an angle, which may be a right-angle, one to the other to form open-ended vertical air-paths which communicate with one another by way of open-ended cross air-paths extending through the holes 30-38 in the walls. The elements may be made of concrete or a plastic.
Patent GB-374654-A (GB)
Title: Improvements in or relating to bail attachments for cans and like containers
IPC: B65D55/02
Filed: 1931-07-04
Abstract: 374,654. Cans &c. ROBINSON, F. G., Springfield House, Sutton-on-Hull, Yorkshire. July 4, 1931. No. 19286. [Classes 66 and 125 (iii).] In a combined bail handle attachment and lid securing means, of the kind made from a blank secured to the can and pierced to receive the end of the handle, the upper part of the blank being bent over the edge of the lid to secure it in position, the blank 1 is slit at 2 to afford a portion 3 adapted to be turned up out of the plane of the blank and perforated at 4 to receive one end of the handle 7. The upper end of the blank is bent over the flange 10 of the lid 8 and may be long enough to extend into the well of the lid, and of a width greater than that of the portion secured to the can (see Fig. 5). The blank may be rotatably secured to the can.
Patent GB-829734-A (GB)
Title: Improvements in electric push-button switches
IPC: H01H13/10
Filed: 1958-06-17
Abstract: 829,734. Press-button retractive switches. ALLIED CONTROL CO. Inc. June 7, 1958 [March 5, 1958], No. 19336/58. Class 38 (5). A three-pole, normally-open, push-button switch, Figs. 2 and 3, comprises an insulating base 12 and a housing 13 attached to the base by clips 13<SP>1</SP>. Downward movement of an insulating actuating bar 47 causes leaf-spring contacts 28 to simultaneously engage corresponding fixed contacts 19, contacts 19, 28 being fixed to the base 12 by solder slugs 21, 32. The bar 47 forms part of a non-rotatable insulating push-button 14 of moulded nylon having a cylindrical body 44 with a flattened end 43, which slides in a correspondingly-shaped passageway in a boss 16 on the housing. The arrangement can be modified to produce a normally-closed switch (Fig. 7, not shown) or a double-throw switch, Fig. 8, in which one or more leaf-springs 78 engage contacts 79, 81 in the normal and operated positions, respectively.
Patent GB-918736-A (GB)
Title: Process for the microbiological oxidation of steroids
IPC: C12P33/10
Filed: 1959-06-05
Abstract: Oxidised steroids are prepared by the action of mycelium forming microorganisms with oxidisable steroids in which an aqueous liquid containing oxygen and the steroid to be oxidised are pushed through a stationary mass of the mycelium.  It is preferable to use a static layer of the microorganisms in pellet rather than fibrous form, and the aqueous liquid may be the culture medium for the microorganisms. It is possible to use a continuous circulation process in which a part of the aqueous liquid is separated from the mycelium while circulation is continued, the volume of liquid separated being replaced by further liquid, e.g. fresh nutrient culture medium, pure water or physiological saline, and the further liquid may contain additional oxidisable steroid, e.g. of the pregnane series which may be unsubstituted in the 11-position.  The process is particularly suitable for the introduction of an oxygen function at the 11-position such as an 11a -hydroxy group by means of Rhizopur nigricans or an 11b -hydroxy group by means of Cunninghametta blakesleeana.  The introduction of oxygen into the system may be used to circulate the liquid.  In the examples 11a -hydroxy-progesterone and hydrocortisone are prepared from the corresponding 11-desoxy compounds.