baber/WOPTO huggingface dataset:
Patent GB-1415600-A (GB)
Title: Swinging bucket cnetrifuge rotor assembly
IPC: B04B5/02
Filed: 1973-02-14
Abstract: 1415600 Bucket-type centrifuge BECKMAN INSTRUMENTS Inc 14 Feb 1973 [4 April 1972] 7266/73 Heading B2P  In a centrifuge rotor including a rotor head 11 having a plurality of bucket-receiving cavities and means 18, 19 in each cavity for supporting a bucket 13 in a vertical position and allowing it to swing into a horizontal position where it seats on a wall portion 16 of the cavity during a centrifuging operation, each cavity comprises a pocket 23 communicating with a hole 20 extending through the rotor head spaced from and parallel to the rotor axis, a well 37 spaced radially from the pocket and a slot 38 connecting the pocket to the well. Each bucket 13 is provided with hooks 32 which engage a cross-pin 19 at the lower end of the body 18 of a hanger 17 which is positioned in the corresponding hole 20 and held therein by its split and threadedly bored upper end being expanded by a screw 26. Deflection of the body 18 is limited during centrifugation by a boss 24 thereon engaging with the wall of the hole 20.
Patent GB-987617-A (GB)
Title: Improvements in or relating to spectacle frames
Inventor: WISEMAN FRANK
IPC: G02C5/00
Filed: 1963-02-22
Abstract: 987,617. Lens mounts for spectacles. M. WISEMAN & CO. Ltd. Oct. 23, 1963 [Feb. 22, 1963], No. 7284/63. Heading G2J. A spectacle frame has an aluminium or aluminium alky front unit 10, Fig. 3, with the browbars 12 of which are rebated at 14 to receive part of eye piece rims 15. Each rim is attached to the bar at its outer edge by means of a screw 17 engaging a bush 18 with a trim top 19 and at the nose piece by a screw which engages a cylindrical nut which set in the side of the nose piece. The nut may be replaced by a plate. In another embodiment as shown in Fig. 7 the rims 25 are thinner that rims 15 and straps 27 are soldered on to them and screwed on to the brow-bars at 28. Pins 31 engage recesses in the nose piece.
Patent GB-568016-A (GB)
Title: Relief valve
IPC: F16K17/04
Filed: 1943-05-10
Abstract: 568,016. Relief valves. ERNST, W. May 10, 1943, No. 7368. [Class 135] A main relief valve has opposed differential areas acted on by the inlet pressure, the smaller being in communication with an auxiliary relief valve. As shown in Fig. 2, the inlet pressure acts on the area 29 via a passage 31 'also on the area 30, the chamber above the latter communicating with an auxiliary relief valve 38. As shown in Fig. 3, the main valve 41 controls communication between an inlet 10a and outlet 28a and is loaded by a spring 46 housed in an adjustable cap 43 and bearing on a plate 45 secured by a nut 44 to an extension 42 of the valve member. Inlet pressure passes via bores 50, 51 to a chamber 48 and thence through a passage 40 having a larger cross. section than the bore 51 to the spring chamber. The chamber 48 is connected through a bore 52 in a connector 53 with the auxiliary valve housing. The auxiliary valve comprises a plunger 59 loaded by a spring 63 housed in an adjustable cap 62 and opened by pressure above a predetermined value in the chamber 48 to vent this chamber through an exhaust port 58. Fluid in the spring chamber escapes to the port 58 through a passage 60 when the auxiliary valve is open. Specification 563,672 is referred to.
Patent GB-915189-A (GB)
Title: An improved etching solution
IPC: C23F1/16
Filed: 1960-03-02
Abstract: 915,189. Etching. DELPIERRE, G. R. March 2, 1960 [March 2, 1959], No. 7392/60. Class 100 (2). A method of etching the back of a mirror comprises the step of applying a solution of copper chloride free from acid, or an acid-free solution of a copper salt and a chloride, to those portions of the backing required to be etched. The chloride is sodium, potassium or ammonium chloride, and the copper salt is copper nitrate or sulphate.
Patent GB-908632-A (GB)
Title: Improvements in and relating to photographic apparatus
Inventor: SILVER SOLOMON
IPC: G03B35/24
Filed: 1958-03-07
Abstract: 908,632. Stereoscopic photography. AUDIO VISUAL ADVERTISERS (LONDON) Ltd. Jan. 30, 1959 [March 7, 1958], No. 7433/58. Class 98 (2). A photographic apparatus comprises a camera mounted on a curved track whose curvature is adjustable, for guiding movement of the camera in an arc centring upon the object to be photographed, the camera having an optical grating between the photo-sensitive surface and the object with its lines perpendicular to the said track, said grating being movable relative to the surface as the camera moves. The grating is formed as a transparent screen having opaque vertical strips, e.g. 65 to the inch, and the single exposure taken is effectively equal to a large number of superimposed separate exposures taken from different positions along the arcuate path, and when viewed through a suitable grating produces a three-dimensional effect. The camera is carried by a table 5 which is itself mounted on a trolley 1. The camera table has wheels 6 which run along a curved guide rail 8 so that the camera is always centred on the object to be photographed. The guide rail rests on rounded slides 14, and may be bent to a greater or less radius by the action of screws 11 which bear against each end, and which are operated from a hand wheel 13 by chain drives 12. Within the camera, the grating 22 is arranged in close proximity to the photographic plate 23. The former is movably mounted in a frame 24 carried by members 26 which have inclined surfaces 27 abutting with those of further members 26. The frame is biased in one direction by springs 28 so that any movement of the frame against this bias causes a transverse movement of the frame because of the inclined sliding surfaces. This movement is caused automatically by a mechanical linkage (Fig. 5, not shown) as the camera traverses, the degree of movement being adjustable.
Patent GB-510145-A (GB)
Title: Improvements in opening devices for tins
Filed: 1939-03-07
Abstract: 510,145. Opening means for tins. HANSEN, O., and THINGBO, O. March 7, 1939, No. 7449. [Class 66] The cutter 6 for the tagger cover 2 of a tin is stamped out of and set inwardly from a flap part 5 separated by inclined cuts from the remainder of the flange 4 of the lid. The part 5 and the adjacent portions of the flange are splayed outwardly, so that the cutter lies outside the wall of the tin until it is brought into'use by pressing the flap 5 inwardly.
Patent GB-1008997-A (GB)
Title: Motor-cycle suspension system
IPC: B62K25/08
Filed: 1963-02-25
Abstract: 1,008,997. Motor cycle suspension. W. L. DAWSON. April 30, 1964 [Feb. 25, 1963], No. 7452/63. Heading B7E. A motor cycle fork comprises casings 11 connected by a crosspiece 14, rods 12 slidably mounted in the casings and cross-connected by a bracket 21 and joined by tension springs 23 to the piece 14, depending arms 15 braced together by a member 16, and arms 17 pivotally connected to the arms 15 and mounting a wheel spindle 19 at their other ends, the spindle being connected by pivot links 20 to the rods 12. Rubber rebound blocks 24 are provided.
Patent GB-126443-A (GB)
Title: Improvements relating to the Tensioning of Warp Yarns in Looms for Weaving.
IPC: D03D49/06
Filed: 1918-05-06
Abstract: 126,443. Hoyle & Sons, J., Watkinson, J., and Hall, H. May 6, 1918. Letting-off warps; warps, tensioning.-A warptensioning device comprises a fixed bar or roller, a rotary roller, and a roller resting against and in surface contact with them, by which the warp is nipped against the fixed bar in proportion to the tension of the usual let-off motion. The device is shown in Fig. 1 applied to a loom having a Roper let-off motion C, the warp passing from the beam B, and under the rotary roller E, and around the roller F, and being nipped by this roller against the fixed bar D. The roller F may be mounted beneath the rollers D, E. In an ordinary loom, the back rest may serve as the fixed bar, or the rollers D, E may be mounted on a bracket adjacent the back rest.
Patent GB-253984-A (GB)
Title: Improvements in and relating to means for controlling chemical reactions
IPC: G01N25/48
Filed: 1925-03-20
Abstract: 253,984. British Thomson-Houston Co., Ltd., Warren, H. W. H., Newbound, R., and Bell, L. M. T. March 20, 1925. Thermostats.-A device for controlling chemical reactions accompanied by a rise in temperature, and especially for ensuring that a particular rise in temperature shall not be exceeded within a predetermined period of time, comprises a contact-member driven at a constant speed, and a second contact-member moved by temperature sensitive mechanism behind and along the same path as the first contact-member, the arrangement being such that should the second member overtake the first an electric circuit is completed whereby corrective, devices are brought into play. A spindle 2, Fig. 1, the movements of which are transmitted by gearing 5, 6, to a sleeve 7, is adapted to be turned by temperaturesensitive mechanism 1 located in the medium to be controlled. The sleeve 7 carries an arm 8 and is traversed by a spindle 10 driven at constant speed and carrying an arm 11. The arm 8, Fig. 3, normally moves over a dial 9 along the same path as and behind the arm 11, and if, on account of a too rapid rise in temperature, the arm 8 overtakes the arm 11 an electric circuit is completed and a corrective operation, such as cessation of heating, is automatically performed. The dial 9 may carry a contact 16 arranged to be cleared by the arm 11 but to be engaged by the arm 8 should the temperature continue to rise, the engagement of the arm 8 and contact 16 completing a circuit whereby cooling fluid is caused to be supplied to or around the reaction vessel. Also, a second contact-carrying arm 18 may be mounted on the spindle 10 so as normally to move behind the arm 8, the arrangement being such that, should the temperature rise too slowly so that the arm overtakes the arm 8, a circuit is completed whereby other corrective means are operated. The temperature-sensitive mechanism 1 may comprise, as shown in Fig. 2, a bimetallic strip 23 fixed at one end 24 to a casing 25 and free to bend with variations in temperature so as to operate a quadrant-shaped rack 26 pivoted to the casing at 27 and engaging a pinion 28 on the spindle 2. Specification 225,011 is referred to.
Patent GB-1222442-A (GB)
Title: Improvements in or relating to the production of cyanogen chloride
IPC: C01C3/00
Filed: 1968-02-16
Abstract: 1,222,442. Cyanogen chloride. AGRIPAT S.A. 16 Feb., 1968 [17 Feb., 1967], No. 7596/68. Heading C1A. Cyanogen chloride is prepared by flowing water downwardly through a packed scrubbing column and then into a reaction column flooded with an aqueous reaction medium and passing gaseous chlorine upwardly through the aqueous reaction medium and flowing gaseous hydrogen cyanide into the aqueous medium between the ends of the flooded reactor. The temperature in the reactor column is controlled by extracting a substantial part of the heat of reaction directly from the reactor. The relative proportions of water, chlorine and hydrogen cyanide are adjusted so as to produce hydrochloric acid at the bottom of the column at a concentration of from 13 to 26% by weight. Gaseous cyanogen chloride flows up through the scrubber and is washed by the downflowing water. The hydrochloric acid is saturated with chlorine and cyanogen chloride which may be stripped from the acid to improve the efficiency of the process. The hydrochloric acid formed is sufficiently concentrated to be a useful by-product.
Patent GB-687405-A (GB)
Title: Improvements in and relating to the separation of xylenes by crystallization
IPC: C07C7/14
Filed: 1949-03-21
Abstract: A xylene-ethylbenzene mixture is fractionated to yield one or more fractions rich in xylene and a fraction rich in ethylbenzene by cooling the mixture in one or more steps down to a temperature just above that at which the ortho-, meta-, paraxylene, ethylbenzene quaternary eutectic freezes out and separating from the mother liquor one or more solid xylene fractions at temperatures in the range from -60 DEG , preferably from -75 DEG C down to the aforesaid limiting temperature.  The final mother liquor is rich in ethylbenzene.  A diluent such as toluene may be employed. If sufficient para-xylene is present a para-xylene fraction may initially be separated.  The xylene may be deposited on cooled systems from which it is removed by scraping or warming or may be precipitated by cooling the liquid mixture and separated from the slurry by centrifuging or filtering. The solid content of the slurry is maintained from 5 to 50 per cent and is controlled at any stage by recycling mother liquor from a succeeding stage.  In an example a xyleneethylbenzene mixture is cooled to -76 DEG C in three steps in stirred cooling vessels arranged in cascade and the slurry centrifuged; the mother liquor is then cooled in four steps to -101 DEG C and the slurry again centrifuged.  The first separation gives a solid para-xylene fraction and the last a solid mixed xylene fraction.  Mother liquor from each separation is recycled to preceding cooling steps.  In another example the initial mixture is cooled in two steps to -75 DEG C, para-xylene separated and the mother liquor cooled in four steps to -101 DEG C. U.S.A. Specification 1,940,065 is referred to.
Patent GB-140421-A (GB)
Title: Car construction
IPC: B61F1/14
Filed: 1920-03-15
Abstract: 140,421. Commonwealth Steel Co., (Assignees of Pflager, H. M.). Jan. 12, 1918, [Convention date]. Springs, arrangement of, and mounting bodies on.-A bogie truck is fitted with compensating- devices located over each axle for transmitting load only when the load is relieved from the main supporting springs. The main springs 11 are arranged between an abutment 10 having a convex lower face engaging a bearing plate 5a mounted around the king bolt in a depression in the side truck frames and an abutment 12<d> fixed to a bolster 20 and provided with a tubular extension 12<a> having a splined engagement with an extension 10<b> on the lower abutment. The compensating devices comprise springs 15 arranged in containers 13 having convex lower faces engaging concave faces on the journal boxes and slidable in sockets 14 in the side truck frames so as to rest normally on the bottoms of said sockets.
Patent GB-398536-A (GB)
Title: Improvements in or relating to spring balanced slidable windows or shutters
IPC: E05F11/38
Filed: 1932-03-15
Abstract: 398,536. Balancing window sashes. THOMAS, S. E., Tregarth, Bath Road, Cranford, Hounslow, Middlesex, QUICK, W., 2, Tudor Way, Gunnersbury Avenue, and QUICKTHO (1928), Ltd., Point Pleasant, Wandsworth, both in London. March 15, 1932, No. 7697. [Class 20 (iii).] A vehicle or other window or shutter is balanced by a spring e in a bracket on the sash acting on a compensating lever i pivoted to a second lever k connected to a garnish rail or the like. The spring tension is adjusted by a lever f and a set-screw g, by which the end of the spring is secured in one of the holes h.
Patent GB-1138193-A (GB)
Title: Improvements in and relating to bearing seals
Inventor: DIXON SIDNEY
IPC: F16C33/78
Filed: 1965-02-23
Abstract: 1,138,193. Bearings; bearing seals. GEORGE ANGUS & CO. Ltd. 4 Feb., 1966 [23 Feb., 1965], No. 7740/65. Headings F2A and F2B. A rolling bearing is formed with a groove 5 or 6 in one race, a ring seal S of resilient material with a rigid reinforcing member 8 having a peripheral bead 12 positioned in the groove, and a lip 9 engaging the other race, the bead having a radial surface 13 meeting a frustoconical surface 11 and an axially extending surface 16. The plane of surface 13 is within the thickness of the rigid ring, and surface 16 is frusto-conical. A radial surface 17 extends from surface 11 and abuts a side of the groove. The ring is of synthetic rubber or plastics and ring 8 is of metal. The groove faces radially and may be of rectangular or circular cross-section. The seal is fitted by axial pressure on the side containing the rebate.
Patent GB-456491-A (GB)
Title: Improvements in or relating to induction-type electric instruments and meters
IPC: G01R11/36
Filed: 1936-03-16
Abstract: 456,491. Supply meters; induction relays. WESTINGHOUSE ELECTRIC & MANUFACTURING CO., East Pittsburg, U.S.A.-(Assignees of Mylius, W. G. ; 106, Tulip Street, Summit, and Barnes, T. D. ; 206, Roseville Avenue, Newark, both in New Jersey, U.S.A.) March 16, 1936, No. 7774. Convention date, March 23, 1935. [Class 37] [See also Group XXXVII] The field-magnet system of an induction meter or relay is provided with a unitary structure which includes a phase-lagging plate 40 embracing the voltage magnet core 4, and a further plate 30 for fine adjustment thereof, a third plate 14 for varying the magnitude of the driving-flux and hence the torque on the rotor being also provided. The core 4 has an aperture 6 in which slides a bar 18 associated with the plate 14. The plate 14 slides in guides 32 on plate 30. The plate 40 is provided with extensions 42 carrying worms engaging pinions 46, 47. The pinion 46 has a pin-and-slot connection with bar 18 and thereby adjusts the plate 14. The pinion 47 has a pin-and-slot connection with plate 30 so that plates 14, 30 can be independently adjusted.
Patent GB-830428-A (GB)
Title: Improvements in or relating to friction clutches
Inventor: BLAND ALBERT NORMAN
IPC: F16D13/71
Filed: 1957-03-08
Abstract: 830,428. Friction clutches. AUTOMOTIVE PRODUCTS CO. Ltd. March 10, 1958 [March 8, 1957], No. 7798/57. Class 80 (2). A friction clutch for motor lorries &c. comprises a driven clutch disc 13 which can be clamped between a driving fly-wheel 10 and a pressure-plate 18, a number of plates 26 secured to the flywheel having radial slots 31 embracing rearwardly-projecting lugs 23 on the pressureplate which is accordingly constrained to rotate with the flywheel. The lugs 23 each have a radial slot within which is pivoted the usual throw-out lever 35 mounted therein by a pin 33 and a needle roller bearing, each throw-out lever also being connected to a cover-plate 19 fast on the flywheel pivot pin 40 and needle roller bearing articulating it to a bolt 36 universally tiltable with respect to the casing by adjustable means. The threaded spigot 41 of each bolt 36 carries a nut 52 having two frusto-spherical surfaces 43, 44 engaged with corresponding frusto-conical surfaces in the cover-plate 19 and a second plate 47 secured thereto, to allow the universal movement of the bolt. The bolt 36 is axially movable relative to the clutch for purposes of adjustment by turning the nut 52, which is then held in position by a locking-bar 49 secured by a set-screw 51 to the plate 47 and having a toothed end engaging peripheral serrations on the nut. A roller 37 on each of the throw-out levers 35 engages a thrust-ring 38, which is itself connected to the casing 19 by flexible bars 56, and springs 55 retain the rollers and the thrust-ring in engagement.
Patent GB-539533-A (GB)
Title: Improvements relating to roofs of buildings
IPC: E04C3/04
Filed: 1940-05-01
Abstract: 539,533. Roofs. SANKEY & SONS, Ltd., J., HADLEY CASTLE WORKS, and SHAW, E. O. May 1, 1940, No. 7825. [Class 20 (iv)] A sheet metal roof structure comprises rafters and joists of inverted channel section with flanged edges. A section of a rafter D is shown in Fig. 2, the open end of the channel having strengthening pieces d<SP>1</SP> welded or otherwise secured at intervals to the flanges d. The joists C are of similar but smaller dimension to enter into the channels of the rafters. Roof tiles F where provided are of inverted channel form, Fig. 4, without flanges, the open end of the channel being closed by a shallow channel member f. Ridge-pieces K and hip-pieces, if required, are of angle section. As shown, the joists C rest only on the inner portion A of a hollow wall and the rafters pass through openings in the top of the outer portion B. The various members are secured together by bolts, distance and gusset, plates. The metal tiling laths P are of angle form and are inserted into slots in the rafters, the upper ends of the slots being under cut to lock the laths in position.
Patent GB-1299111-A (GB)
Title: Hygienic device for detecting unintentional urination
Inventor: MOZES ALEXANDER
IPC: A61F5/48
Filed: 1970-02-18
Abstract: 1299111 Detecting enuresis A MOZES 18 Feb 1970 [25 Feb 1969 (2)] 7826/70 Heading A5R A device for detecting enuresis comprises a hip-girdle 2 carrying a cap 6, adapted to surround the urine outlet of the person and containing sensing electrodes 13-16 for detecting urine flow and thereby triggering an alarm circuit, and stimulator electrodes 11, 12 arranged to deliver a stimulus to the person upon triggering of the alarm circuit, a terminal strip 28 and batteries 26, 27 of the alarm circuit being disposed in a pocket 3 of the girdle. The sensing electrodes are either welded to the inside of the cap or attached to a tape which is pinned to the cap. The cap is made of synthetic resin and is attached to a triangular portion 1 of linen which is attached to the waist band 2. The stimulator electrodes are interwoven into the edge of the cap. The alarm circuit comprises a buzzer device 29 one terminal of which is connected through a thyristor to the negative pole of batteries 26, 27, the other terminal being connected to the positive pole through a positive-sensitive switch. This is preferably a mercury switch and is so disposed in the garment that it is closed when the person wearing the garment is in a horizontal position and is automatically opened when the body of the person is erected beyond a certain angle relative to the horizontal. The alarm circuit further comprises three plugs each having associated with it a resistance to which stimulator electrode is connected. The other stimulator electrode is connected to the positive terminal of batteries 26, 27. A socket connected to the case of the buzzer device is attachable to any of the plugs. When a conductive path is established between the sensing electrodes due to the presence of urine, the thyristor is made operative closing the circuit between the batteries and the buzzer, and also connecting the stimulator electrode 12 to the negative terminal of the batteries. A stimulus is thus applied to the patient.
Patent GB-1210953-A (GB)
Title: Photographic silver halide emulsions
IPC: C07D239/46
Filed: 1968-02-16
Abstract: 1,210,953. Silver halide emulsions. FUJI SHASHIN FILM K. K. Feb. 16, 1968 [Feb. 18, 1967], No. 7832/68. Heading G2C. [Also in Division C2] Silver halide emulsions contain (i) a sensitizing dye of formula (I):- in which Y and Y 1  each complete an optionally substituted benzothiazole, benzoselenazole or quinoline group, R and R, are each aryl, allyl or optionally substituted alkyl, X<SP>-</SP> is an anion and m, n, and n 2  are each 1 or 2, and (ii) an antifoggant/ stabiliser, which may also act as a supersensitizer, of formula (II):- in which R 2-  5  are each halogen, OH, aryloxy, arylthio or arylamino, and A is a 4, 4<SP>1</SP> -(2, 2<SP>1</SP> - disulpho stilbene) or 4, 4<SP>1</SP> -(2, 2<SP>1</SP> - disulpho dibenzyl) or a salt of such a group. Preferably the emulsion contains 0À002-0À2 g. of (i) and 0À02-10 g. of (ii) per mole of silver halide in a ratio of between 1 : 2 and 1 : 200.