baber/WOPTO huggingface dataset:
Patent GB-302526-A (GB)
Title: Improvements in pivoted disc valves
IPC: F16K1/24
Filed: 1928-03-08
Abstract: 302,526. Glenfield & Kennedy, Ltd., and Price, O. A. March 8, 1928. Closure members, hinged. - In a pivoted disc valve 1, Fig. 1, having a conical edge cooperating with a conical seat, the pivot 3 is located within the angle FGH contained between lines drawn transverse to the pivot and normal to the conical surface from diametrically opposite points A, C on the disc boundaries of larger and smaller diameters respectively, the vertex G of said angle being nearer to the axis of the cone than the pivot, whereby the disc is enabled to tilt freely into or out of its seating without any rubbing action. The precise position of the pivot is determined by the angles of approach A<1>, C' desirable at the points A, C. The valve may be automatically or positively controlled. As shown in Fig. 8, the disc 8, when swung open, places a pipe section 9 in line with main pipe, the valve being operated by a worm 10 engaging a toothed segment 11 on the pivot 3. Packing material may be provided on the edge of the disc or on the seat. External self-sustaining and cushioning means as described in Specification 301,950 may be provided.
Patent GB-1461564-A (GB)
Title: Apparatus for exchanging fuel elements or control rods in a nuclear reactor
IPC: G21C19/00
Filed: 1975-02-20
Abstract: 1461564 Handling nuclear fuel &c FRIED KRUPP GmbH 20 Feb 1975 [21 Feb 1974] 7238/75 Heading G6C Apparatus for exchanging fuel elements, or control rods, in a nuclear reactor comprises a guide mast rotatable with respect to a travelling working platform about a vertical axis and a gripper body suspended from a hoisting mechanism, guided for vertical movement within the mast, prevented from rotating with respect to the mast and provided with coiling devices for storing supply lines (air hoses, electric cables) which enter the top of the mast and thence the gripper body; the apparatus is characterized in that the hoisting mechanism and the coiling devices are mounted on the mast for rotation with it. The hoisting mechanism and coiling device are so disposed that liquid dropping from them passes into the interior of the mast, and the hoisting mechanism described is a block and tackle arrangement removably mounted in a part of the mast above the working platform and having an hydraulic power unit by which the upper and lower pulleys can be increasingly separated.
Patent GB-471815-A (GB)
Title: Improvements in or relating to heat insulation
IPC: F25D23/06
Filed: 1936-03-10
Abstract: 471,815. 'Cork slabs. AKTIEBOLAGET TERMISK ISOLATION. March 10, 1936, No. 7245. Convention date, March 13, 1935. Drawings to Specification. [Class 87 (i)] [Also in Group XIII] Cork slab for heat insulation is coated with asphalt or paraffin wax or covered with paper impregnated with these materials.
Patent GB-1280883-A (GB)
Title: Electrophotographic copying material
IPC: G03G13/28
Filed: 1969-06-12
Abstract: 1280883 Starch compositions RICOH KK 12 June 1969 [9 Oct 1968] 7275/72 Divided out of 1280882 Headings C3P and C3U [Also in Division H1] In the specific embodiments an aqueous dispersion of polyvinyl acetate, methylol starch and ammonium chloride and optionally an acrylic resin and a macromolecular quarternary ammonium salt is coated on a paper support and dried at 150‹ C. In a comparative experiment, corn starch replaced the methylol starch.
Patent GB-1031203-A (GB)
Title: Improvements in or relating to bolsters for flat-tanged cutlery
Inventor: GREEN DENIS WILLIS
IPC: A47G21/02
Filed: 1964-02-21
Abstract: 1,031,203. Knife handle fixings. WILLIS GREEN & CO. Ltd. April 29, 1965 [Feb. 21, 1964], No. 7303/64. Heading B4K. A bolster 1 for flat tanged, stainless steel cutlery comprises a shell 7 pressed from stainless steel plate with one end 8 closed except for a transverse slot 14, the interior of the shell being filled with a different material, the filling having a lengthwise aperture 11 of rectangular section for the passage of the flat tang 6 and also a transverse slot 12 opening into the slot 14 to receive the shank 4 across the shoulders 3 which bear on the bottom 13 of the slot 12. The filling may be preformed and inserted into the shell or moulded into the shell. The filler material at the open end of the shell 7 bears against the end of a stainless steel handle, but in a modification the open end of the shell is extended to fit a spigot at the end of the handle which lies inside the shell. In another modification, Figs. 11-12 (not shown), the filling has a pair of extension tongues which lie along the sides of a flat tang passed through the aperture therein. In another modification, Figs. 13, 14 (not shown), the widest cross-section of the bolster is at a location intermediate of the ends and the shell is swaged into conformity with the filling from that location to the open end of the shell.
Patent GB-201959-A (GB)
Title: Improvements relating to steam turbines
IPC: F01D17/00
Filed: 1922-03-13
Abstract: 201,959. Guy, H. L., Ross, T. W., and Metropolitan-Vickers Electrical Co., Ltd. March 13, 1922. Dynamos, regulating.-Control devices, responsive to the load on the turbine and acting on a by-pass valve or on both a by-pass valve and a governor valve, are provided to prevent over-speeding on a sudden removal or reduction of load. The control device may be a solenoid 11 included in an electric circuit constituting the whole or part of the load on the turbine and responsive to the current, voltage, or power of such circuit. Alternatively, the solenoid may be included in an external circuit controlled by a relay included in a circuit of the kind just specified. With either arrangement, the governor valve, which has its spindle 3 connected to the piston 4 of a servo-motor 5, is held open during normal operation by fluid pressure acting on the underside of the piston 4 in the known manner. When the load is reduced below a predetermined limit, the solenoid 11 is energized and lifts a pilot valve 9, thereby allowing fluid to escape from below the piston 4 by way of pipes 7, 8, 8<a>, and the governor valve to close under bias. Further, as described in Specification 188,877, [Class 110 (iii), Turbines &c.], a valve-controlled byepass is provided between a part of the system beyond the governor valve and a region of relatively low pressure, and the electrical system operating the governor valve also effects the operation of the byepass valve. For example, the valve 30 controlling the byepass 24 is opened when the solenoid 11 is energized, the solenoid lifting a lever 44 against a spring 46 and opening a pilot valve 43, thus allowing steam to flow by way of pipes 45, 42 to the underside of a piston 40, and opening a valve 39. This permits steam from the upper side of the perforated piston 31 attached to the valve 30 to escape to the condenser by way of the pipe 41 and byepass 24, and the steam below the piston 31 then raises the valve 30 and opens the byepass 24 so as to pass direct to the condenser any steam remaining in the system on the closure of the governor valve, or any steam leaking past this valve after its closure. The valve 30 automatically closes when the solenoid is de-energized, but a crank 47 may be provided for testing, or for manual operation, if desired.
Patent GB-691571-A (GB)
Title: Improved device for driving auxiliaries on aircraft
IPC: F02C7/32
Filed: 1951-03-30
Abstract: 691,571. Gas turbine plant. SZYDLOWSKI, J. March 30, 1951 [April 1, 1950], No. 7485/51. Class 110(iii) [Also in Group XXXIII] Auxiliaries 8a, 9a, 10a on a multi-engined aircraft are driven by a turbine 11a supplied with compressed air or products of combustion delivered by the engines 18, 19, 20, 21 through pipes 14, 15, 16, 17, each of which is provided with a hand or automatically-actuated control valve 22 and a non-return valve 23 acting automatically upon failure of the associated engine. A hand or automatically-actuated valve 2a is fitted in the pipe 1a leading from the collecting chamber 13.
Patent GB-582341-A (GB)
Title: Improvements in dynamo electric machines for the remote transmission of angular motion and torque
IPC: G08C19/38
Filed: 1944-04-21
Abstract: 582,341. Electric follow-up systems. BRITISH THOMSON-HOUSTON CO., Ltd., and CHOUDHURY, S-U. A. April 21, 1944, No. 7487. [Class 40 (i)] In a Selsyn transmitter the armature is provided with a commutated winding having a, pair of short-circuited brushes arranged at right angles to the field winding. Relative angular displacement of the transmitter and receiver rotors will produce a current in the quadrature axis of both machines, which by interaction with the field excitation of the receiver produces a torque to turn the receiver rotor. Due to the commutated winding of the transmitter being short-circuited across the quadrature axis, it will carry a reflection of the quadrature current and produce a torque opposing that produced by the quadrature current itself. The secondary voltages supplied to the receiver windings 3 may be provided by means of a separate polyphase winding 6 on the rotor as, shown or by equidistantly spaced tappings from the commutated winding 5. Specification 578,122 is referred to.
Patent GB-739662-A (GB)
Title: Improvements relating to microscope counting chambers for eosinophil and basophil counting
IPC: A61B5/145
Filed: 1954-03-15
Abstract: 739,662. Microscope slides. BOGHRATI, N. March 15, 1954, No. 7532/54. Class 97 (1). A counting chamber for determining by microscopic examination the number of different leucocytes in the blood consists of a transparent plate having in the middle of one side a plane surface for supporting a cover glass and, in said surface, a flat-bottomed recess serving as the chamber, the bottom of the chamber carrying the usual rulings and a groove surrounding the recess to receive excess liquid when the cover glass is applied. Fig. 1 shows the plate in plan and Fig. 2 in section. The plate comprises plane end portions 3 and a raised central portion having a plane top surface and containing grooves 6 and a recess 4 forming the counting chamber. Holes 11 are provided for the mounting of springs holding a cover glass in position on the central surface to provide a completely enclosed chamber over the recess 4. Excess of the blood solution on filling the chamber flows into the channels 6. The volume of the chamber may be 10 cubic millimetres to facilitate calculation of the number of leucocytes per cubic millimetre of the blood.
Patent GB-1099037-A (GB)
Title: Improvements in or relating to gramophones
IPC: G11B3/085
Filed: 1965-02-22
Abstract: 1,099,037. Tap-tap mechanisms for gramophones. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES. Feb. 22, 1965 [Feb. 24, 1964], No. 7543/65. Heading G5R. The claims relate to the tap-tap mechanism described in Specification 1,099,038.
Patent GB-109236-A (GB)
Title: Improvements in Rifle Attachments.
Inventor: DUERR EDGAR
IPC: F41A3/72
Filed: 1917-05-25
Abstract: 109,236. Duerr, E. May 25, 1917. Breech actions, sliding breechblock; stocks; sighting-accessories.- Relates to stock attachments for firing from cover, and consists in operating the breech-bolt by a longitudinal rod attached to the bolt handle and adapted to be rotated and reciprocated by a lever pivoted to the stock attachment. In the construction shown in Fig. 1, there is a steep-pitch screw connexion d, h between the lever a and the rod e.
Patent GB-421236-A (GB)
Title: Improvements in and relating to cigarettes
IPC: A24D1/10
Filed: 1934-03-09
Abstract: To prevent continued glowing of a cigarette, a portion of the cigarette wrapper near to the mouthpiece is impregnated only superficially with a substance to which a coating of an amorphous and non-inflammable substance may be made to adhere.  The coating may be bronze powder or other metal dust, and the impregnated superficial layer with the adhering coating may be on the outside or inside, or both.
Patent GB-430525-A (GB)
Title: A regulating device for controlling the flow of liquid from syphons of soda water and the like
IPC: B67D1/04
Filed: 1934-03-10
Abstract: 430,525. Siphon bottles. MARTIN, D., 49, Tavistock Road, Stratford, London. March 10, 1934, No. 7631. [Class 14 (i)] Siphon bottles are provided with a rigid stop device, either attachable to or integral with the siphon head, for controlling positively the extent to which the discharge valve of the siphon can be opened, so that violent and uncontrolled discharge of the liquid is avoided. As shown, Fig. 2, a collar 10, adapted to be fixed on the siphon head 13 by a nut 11, carries a socket 17 in which a screw with a milled head 18 is adjustable. A lock nut 19 is provided. The collar is fixed so that the head 18 lies in the path of movement of the valve-actuating lever 14. The collar may be constituted as a spring clip. In a modification, a similar socket 17 with screw 18 is formed integrally with the head 13 In another modification, Fig. 4, for a plungertype siphon, the stop is constituted by a flange 25 on a bush 24 screwed into the siphon head. The flange limits the movement of the valve-actuating plunger 30. A similar arrangement is described for a rotating-plug type of siphon. Specification 188,719, [Class 14 (i)], is referred to.
Patent GB-943638-A (GB)
Title: New 16-oxygenated steroids
IPC: C07J1/00
Filed: 1961-03-02
Abstract: The invention comprises steroids of the formula: <FORM:0943638/C2/1> in which R1 is a hydrogen atom, R2 is H(b OH,) H(b O acyl), =O, alkyl (b OH) or alkyl (b O acyl) and the alkyl group may be unsaturated, and R3 is a hydrogen atom or an acyl group, or together with R2 is a 16,17-acetal or -ketal group. They may be prepared (1) by contacting a suitable D  4-3-keto-19-nor-androstene with a fungus which causes 16b -oxygenation or an oxidizing enzyme system obtained therefrom, such a fungi of the order Moniliales, especially the genus Curvularia such as C. lunata, the order Sphaeriales such as Mycosphaerella fragariae or M. latebrosa, the order Melancholiales such as Colletotrichum phomoides or C. lindernuthianum, or the group Mycelia such as Sclerotium coffeicolum; or (2) by reducing a 3-ether of 16-epi-oestriol or a 16,17-derivative thereof with an alkali metal in liquid ammonia to give a 16b -hydroxy-19-nor-testosterone or a 16,17-derivative thereof; or (3) converting a 17-keto compound of the 19-nor-androstane into the corresponding 16-oximino compound, reducing this to a 16-keto compound and reducing this again to a 16b -hydroxy compound; or (4) enolacylating a 17-keto-steroid, treating the thus obtained D  16-17-acyloxy compound with lead tetra-acetate to form the corresponding 16b -acyloxy-17-keto-steroid and, if desired, reducing this to the 16b , 17b -dihydroxy steroid, or, if desired, converting the 17-keto compound to a 17-hydroxy-17-alkyl compound and then to the corresponding 16b -hydroxy compound by hydrolysis. Free hydroxy products may subsequently be esterified or converted into 16,17-acetals or ketals.  Examples are given and a list of esterifying acids, and of aldehydes and ketones for the formation of acetals and ketals, is provided.  16-Epi-estriol 3-methyl-ether is prepared from 16-epi-oestriol and dimethyl sulphate.
Patent GB-659641-A (GB)
Title: Improvements in or relating to clothes pegs
IPC: D06F55/00
Filed: 1949-03-22
Abstract: 659,641. Clothes pegs. LAWSON, R. W. March 22, 1949, Nos. 7695 and 11008. [Class 44] In a clothes peg, one or more rotatable balls or rollers is or are mounted in each of the adjacent faces of the limbs, projecting slightly therefrom, and preferably at or near the free ends. Fig. 1 shows a form in which each limb is formed of a loop of wire 1, 2, on which a roller 5, 6 is mounted. the wires are secured together to form a handle or a separate handle 9 is fitted. In the form shown in Fig. 4, balls 11, 12 are mounted on spindles 14 in recesses 13 formed in the limbs of a wooden peg of the usual type. A peg having one limb 22, Fig. 5, connected to the body by a spring 23 may be provided with rollers 28, 29 mounted on spindles and housed in openings in the limbs.
Patent GB-1189597-A (GB)
Title: Elastomeric Glass Fibre Reinforced Structures.
IPC: C09D175/04
Filed: 1968-02-16
Abstract: 1,189,597. Elastomeric polyurethane composition. OWENS-CORNING FIBERGLAS CORP. 16 Feb., 1968 [1 March, 1967], No. 7715/68. Heading C3R. [Also in Division D1] A composition used in the treatment of glass fibres comprises an elastomeric polyurethane, an end-blocked diisocyanate and an organosilane in solution in an organic solvent, e.g. methyl ethyl ketane or methylisobutylketane. The end-blocked diisocyanate may be phenol endblocked tolylene diisocyante, bis phenol endblocked methylene bis (4-phenyl isocyanate) or a bisulphite end-blocked diisocyanate and the organosilane may be a silane having three hydrolyzable groups, e.g. halogen or alkoxy groups, and an organo portion such as gammaaminopropyl, delta aminobutyl and N-(betaamino ethyl) gamma-aminopropyl.
Patent GB-1173246-A (GB)
Title: Improvements in or relating to Colour Television
IPC: H04N9/89
Filed: 1968-02-16
Abstract: 1,173,246. Automatic phase control. FERNSEH G.m.b.H. 16 Feb., 1968 [16 Feb., 1967], No. 7723/68. Heading H3A. Timing errors in a colour television signal from a store are corrected by means of a variable delay line 1 controlled by an error signal which is a function of the phase difference between a reference signal 7 and the colour sync signal 8 and a fixed delay line 9 which is switched in whenever the error signal from the phase comparator 6 exceeds a predetermined value. Switching of the line 9 is effected by means of a threshold detector 32 which also provides an output on line 34 to reduce the delay in line 1 by the amount added by line 9. In a modification, Fig. 1 (not shown), the separator 5 is connected after the delay line switch 10 and the control line 34 is omitted.
Patent GB-611040-A (GB)
Title: Improvements in or relating to oils for industrial purposes and manufacture thereof
IPC: C07C2/68
Filed: 1945-03-27
Abstract: Naphthalene is alkylated with ethylene in the presence of benzene, toluene, the xylenes, ethyl benzene, polyethyl benzenes or ethyl derivatives of toluene and the xylenes, the reaction being effected at substantially atmospheric pressure with the aid of an aluminium chloride catalyst, present as such or in the form of an aluminium chloride-olefin complex.  The resultant ethylated naphthalene may be further alkylated with a higher olefine than ethylene, e.g. propylene, a butylene or an amylene, without adding a further amount of catalyst, or the ethylated naphthalene may be isolated and then alkylated with the higher olefine in the presence of benzene or its specified homologues and an aluminium chloride catalyst.  The alkylation may be effected at a temperature between 30 DEG  C. and 140 DEG  C.  In examples: (1) dry ethylene is introduced into a heated mixture of benzene, naphthalene and aluminium chloride, polyethylnaphthalenes and polyethylbenzenes are formed and when the reaction has slowed down, butylene is admitted instead of ethylene. The liquid products are decanted from the aluminium chloride complex, the hydrocarbon upper layer filtered off washed with water and distilled, the distillate comprises mainly ethyl benzenes and ethyl naphthalenes while the residue is a lubricating oil.  The distillate is added to further amounts of naphthalene and aluminium chloride and subjected to alkylation with ethylene and butylene to yield more lubricating oil.  The aluminium chloride complex is hydrolysed to produce a drying oil useful in paints and varnishes as a substitute for linseed oil, and this drying oil may be converted to lubricating oil by hydrogenation; (2) a mixture of diethylbenzene and naphthalene is alkylated with ethylene as in (1) and then with propylene to form a lubricating oil.  The Specification as open to inspection under Sect. 91 states that the reaction may be effected under subatmospheric or superatmospheric pressure and includes two additional examples (3) and (4), in (3) a mixture of polyethylbenzene, naphthalene and aluminium chloride is alkylated with ethylene and then with amylene to form a lubricating oil, the aluminium chloride complex being hydrolysed to form a drying oil; and in (4) a mixture of xylene, naphthalene and aluminium chloride is alkylated with ethylene and then with butylene to yield an oil, while a drying oil is also recovered from the aluminium chloride-complex. This subject-matter does not appear in the Specification as accepted.
Patent GB-1240406-A (GB)
Title: Apparatus for producing disc wheels, for example for motor vehicles
IPC: B21D53/26
Filed: 1969-02-13
Abstract: 1,240,406. Assembling disc wheels. OTTENSENER EISENWERK G.m.b.H. 13 Feb., 1969 [27 March, 1968], No. 7850/69. Heading B3A. An apparatus for assembling a rim member and wheel disc member to form a disc wheel comprises means for positioning each member in a desired orientation so that when the wheel disc is inserted into the rim member they will be exactly positioned relative to each other. The rim member 1 is fed to a device Fig. 1, and a piston and cylinder device 5 is actuated to cause clamping tools 2, disposed on a spur gear 7 meshing with a pinion 8, to engage the member 1. A motor 10 is started to rotate the rim member 1 by the pinion 8 until a weld seam 6 is detected by a scanner 11, whereupon the rotating mechanism 4 is stopped and displaced upwardly. The member 1 is conveyed in its correctly oriented position to a second device, Fig. 2, below a wheel disc 25 which has also been accurately positioned. The disc 25 is positioned by moving a mandrel 14 downwardly into its centre hole and rotating the mandrel 14. When the light beams of photo-electric devices are not obstructed by projections and fixing holes of the disc 25, the mandrel 14 is stopped and a feeder 24 retracted. The mandrel 14 is lowered to insert the disc 25 into the rim member 1 positioned therebelow. After retracting the mandrel 14, the disc wheel is conveyed to pressing and welding devices.
Patent GB-545861-A (GB)
Title: Improvements in or relating to piston or packing rings
IPC: F16J9/20
Filed: 1941-06-21
Abstract: 545,861. Removing chips in drilling metals. CHICAGO PNEUMATIC TOOL CO. Aug. 8, 1941, No. 10095. Convention date, Oct. 5, 1940. [Class 8 (ii)] [Also in Group XXII] A drilling tool, especially for forming rivet holes in superposed aluminium sheets, is provided with a casing on the front of the tool including a plunger 41 which holds the work down and is axially bored to receive the drill and allow air to be drawn through into the casing and through a hose 27 to a dust-bag; the air current may be induced by a jet of compressed air led into'the hose or into a casing enclosing a wire mesh bag to which several drills may be connected. Air holes 61, 62 may be formed in the casing and plunger. The plunger is pressed forwards by a spring. The part 39 of the casing is held in a position adjusted to the length of the drill by an adjustable wire clip 54 engaging a slot in its end. The casing and plunger can be advanced and retracted by a ring 47 provided with locking balls. The air exhauster and drill motor may be started together automatically.