baber/WOPTO huggingface dataset:
Patent GB-1014064-A (GB)
Title: Improvements to shaft seals
Inventor: DENNY DOUGLAS FRANK
IPC: F16J15/38
Filed: 1963-09-16
Abstract: 1,014,064. Shaft seals. RONALD TRIST & CO. Ltd. Aug. 14, 1964 [Sept. 16, 1963], No. 36373/63. Heading F2B. In a centrifugal pump the shaft 1 is sealed when stationary or rotating slowly by a non- rotatable axially movable sealing ring 15 which is pressed by hydraulic pressure against the action of a spring 20 into sealing contact with a sealing ring 5 fixed to the shaft, the magnitude of the hydraulic pressure decreasing with increase of pump speed so that at a given speed, when the pressure is substantially atmospheric, the sealing ring 15 is moved out of contact with the rotating ring 5. In the arrangement shown in Fig. 1, the hydraulic pressure is provided by the static head of the liquid in the pump casing 9 and acts on a piston 13 movable in a cylinder 12 and carrying the ring 15 to hold the latter, when the pump is stationary or rotating slowly, in sealing contact with a conical surface 8 on the ring 5. When the pump is running normally, the pressure in the cylinder 12 is approximately atmospheric and the ring 15 is held out of contact with the ring 5 by the springs 20. In a modification, Figs. 2 and 3 (not shown), the hydraulic pressure is provided by a liquid supplied from a source outside the pump and the pressure is controlled by an outlet valve operated by a shaft speed sensitive device.
Patent GB-1001406-A (GB)
Title: Fertilizer composition
IPC: C05F3/00
Filed: 1962-09-25
Abstract: Poultry litter comprising wood chips and shavings and droppings is milled while air is caused to pass through the mill (see Division B2) to prevent clogging.
Patent GB-1426372-A (GB)
Title: Coin operated lock
IPC: E05B25/00
Filed: 1973-08-01
Abstract: 1426372 Coin-operated locks SCHULTESCHLAGBAUM AG 1 Aug 1973 [5 Aug 1972] 36547/73 Heading G4V A lock comprises a locking mechanism made operable by the insertion of a locking coin 18 after which a locking member 10 is movable to a locking position, the coin being temporarily retained in a pocket 17 in the locking member and being released therefrom under the control of a timing mechanism 37. In the embodiment described which is associated with a rental locker a timing coin 43 must first be inserted via slot 42 into a pocket 41 of the timing mechanism, movement of the coin into the position shown in Fig. 2 rotating a control finger 37 of the timing mechanism anticlockwise to move a slide 23 from a normally retracted position (Fig. 1, not shown) to beneath the coin pocket 17 where it is held by a catch 32. A locking coin now inserted via slot 19 is retained in the pocket 17 and on rotation of a lug 8 by means of a removable key the bolt 10 may be moved to a locking position, Fig. 4, the coin 18 lifting a pawl 21 to permit full movement of the bolt. On movement of the bolt a lug 60 on a lever 52 pivoted to the bolt shifts from a position blocking pocket 41 to allow the timing coin to fall to a collection shoot 45 via an opening 23<SP>111</SP> in the slide 23. At the expiration of the time period set by the timing mechanism the finger 37 moves back to its initial position to release catch 32 and allow the slide 23 to be retracted by spring 26, the coin 18 falling from pocket 17 into a collection shoot 46 (Fig. 5, not shown). Before the end of the set time period the rental locker may be unlocked and relocked without loss of the coin 18 or the insertion of a further coin 43, and if a coin return button 47<SP>1</SP> is depressed, with the bolt 10 in its retracted position, lever 52 is pivoted so that a finger 57 thereof engages a part 50 of the timing mechanism to reset it, hence withdrawing slide 23 and allowing the coin 18 to fall to a coin return shoot 44. If the button 47<SP>1</SP> is depressed before the bolt 10 has been moved to its locking position the timing coin 43 is guided by the lever 52 so that it also falls to the coin return shoot 44 (Fig. 3, not shown).
Patent GB-414078-A (GB)
Title: Improvements in and relating to roofs of buildings and gutters therefor
IPC: E04D13/064
Filed: 1932-12-24
Abstract: 414,078. Tiles and gutters. BATES, H. K., 42, Hawarden Avenue, Sefton Park, Liverpool. Dec. 24, 1932, No. 36549. [Classes 20 (iv) and 87 (i).] A combined eaves tile B and gutter A is provided with a plurality of ridges or projections b<1> arranged one behind the other on the underface of the tile for engaging battens e1 carried by the roof spars E. The tile and gutter are made integral in sections which, preferably, interfit at the ends by means of rabbeted joints. The gutter A may be stiffened by transverse struts a<2> arranged across the upper edges of the gutter. The tile B may be provided with two ridges b<1>, and the lowermost ridge may be shaped as shown at b<3>, Fig. 4, to extend the full distance between two adjacent battens e<1>. The tiles B may provide a continuous support for, and be covered entirely by, the lowermost course of roofing tiles C as shown, Figs. 2 and 4, or they may, themselves, constitute such lowermost course as shown in Fig. 6. When a fascia board G is provided as shown in Fig. 2, the upper edge of the board is bevelled to engage a suitably shaped part of the gutter A. The underside of the gutter is so shaped that water dripping from the gutter will clear the fascia board. The Provisional Specification describes also the provision of a single hanging ridge 6<1> on the underface of each tile member B.
Patent GB-435989-A (GB)
Title: Improvements in or relating to automatically variable power transmission mechanism
IPC: F16D3/12
Filed: 1933-12-29
Abstract: 435,989. Variable - speed gearing; flexible couplings. HOBBS, H. F., 58, Lillington Road, Leamington Spa. Dec. 29, 1933, No. 36601. [Classes 80 (ii) and 80 (iii)] In automatically variable power transmission mechanism of the kind described in Specification 358,732, comprising planetary weights carried by a casing driven from the engine and connected to an intermediate means, e.g. a shaft, which in turn is connected by spring means to a driven shaft, a flexible coupling is provided between the engine shaft and the casing carrying the planetary weights. The coupling, which may also be located between two parts of a divided flywheel carried by the engine shaft, is of the known type which increases in flexibility with decrease in speed so as to be very loose or flexible in both directions at low speeds and connects the engine shaft A with the casing E. A sleeve B is splined to the shaft A and has four radial lugs B<1> pivoted to each of which is one end of a link D<1>, the other end of which is pivoted to a link D. The other end of link D is pivotally secured to casing E by bolts D<2>. These four pairs of links are so arranged that whilst two pairs tend to straighten, the other two tend to collapse. The links D may be comparatively heavy and are provided with stop surfaces D<5> to prevent inward movement beyond the dead centre position. Specification 135,827, [Class 80 (ii)], also is referred to, and the Provisional Specification refers to Specification 435,988.
Patent GB-927644-A (GB)
Title: Improvements in or relating to valves for controlling steam
Inventor: PONTOW WERNER
IPC: F16K49/00
Filed: 1959-10-28
Abstract: 927,644. Contacting a gas with a liquid. SIEMENS-SCHUCKERTWERKE A.G. Oct. 28, 1959, No. 36640/59. Class 55 (2). [Also in Group XXIX] Ejector type steam valve.-When the frustoconical valve member 20, Fig. 2, is opened, cooling water from a pipe 24 flows through an annulus 25 and an annular slot 22 into the smallest cross-section of a nozzle 21, formed by the member 20 and the adjacent casing, where it is atomized. The nozzle outlet leads to a Venturi 26 and the bled steam mixes with the live steam at the entrance to the Venturi; the Venturi outlet is connected to the system 7 (Fig. 1, not shown). The member 20 has a sealing part co-operating with a seat at the nozzle inlet, and steam regulation is effected by moving the valve stem 28. The member 20 may be longer than the adjacent casing. In a modification, the valve has two nozzles, an inlet element 35, Fig. 4, being lifted by the valve member after a certain lost-motion to open the second nozzle formed between the element 35 and the adjacent casing. In another modification, the element has movable walls 40, 41, Fig. 5, connected by pivoted levers 38, 39 to the valve spindle so that the walls pivot as the valve member is lifted whereby the nozzle length remains constant over the entire range of valve movement. The valve may also operate as either a reducing valve, when no cooling is necessary, or simply as a valve for cooling steam which is to be increased in pressure, the regulators, 8, l, Fig. 1 (not shown), automatically determining in which role the valve is employed. Specification 710,069 is referred to.
Patent GB-802367-A (GB)
Title: Improvements in and relating to the removal of solid or liquid particles from a gas
Inventor: BOSANQUET CLAUDE HENRY
IPC: B01D47/10
Filed: 1954-12-20
Abstract: 802,367. Washing gases. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Dec. 16, 1955 [Dec. 20, 1954], No. 36716/54. Class 55 (2). In removing solid or liquid particles from a gas the latter is passed together with a washing liquid through a venturi tube having an extended throat of uniform cross-sectional area, and of length at least equal to four times its effective diameter and not less than about 2 feet, and then through an apparatus such as a cyclone separator to remove the particles of the washing liquid together with the associated solid or liquid particles originally carried by the gas. The effective diameter is defined as the diameter of a circle of the same area as the cross-section of the throat. The extended throat may be between 2 and 6 feet in length. The washing liquid, which may be water or hydrocarbon, is introduced as an atomized spray or through a plurality of jets at any point in the convergent portion or throat of the venturi, such as at the inlet end of the latter. The ratio of washing liquid to gas may be between 0.4 and 1.0 cubic meters per 1000 cubic meters, the gas velocity being between 150-200 feet per second. The apparatus is particularly suitable for removing from a gas particles having a size less than one micron.
Patent GB-367402-A (GB)
Abstract: 367,402. Anti-aircraft gun sights. PRECISION MODERNE, 61, Rue Pernety, Paris. Aug. 16, 1930, No. 24595. Convention date, March 13. [Class 92 (ii).] Relates to automatic sight-correcting apparatus for anti-aircraft guns of the kind described in Specification 358,901 in which a space figure oefh is materialized in the apparatus, oe being parallel to the sight x and representing the range D, ef the target traverse Vt, fh the gravity-drop, and oh the gun axis. According to the present invention, the scale of the figure is such that oe represents a constant or unit length, the distance fh being adjusted to suit the range, and the distance ef being set up as a function of V and D, t being assumed to be a function of D. As in the prior Specification, the apparatus comprises a cylinder 2 vertically movable in a box 1 the axis of which is kept vertical by a parallel-motion link connection with the gun and its carriage. The cylinder 2 is connected to a toothed ring 9 adjustable vertically by rotating a sun-wheel 11 from an external operating knob until a pointer 16 on the ring 9 registers with the range graduation on a fixed scale y. In order to impart the desired radial movement to the rod 7 as a function of V and D, a drum 15 bearing speed curves 17 is rotated by a gear wheel 19 operated by a second external knob until the pointer 16 registers with the appropriate speed curve. As in the prior Specification, a screwed sleeve 8 is thereby rotated and rises relatively to the ring 9 to actuate the sector 4 moving the slide 3. This slide is provided with a cam groove 63 engaging a pin 62 on the rod 7 and this rod is vertically movable in bearings in a radial slide 5 enclosing the slide 3. By following an ascending or descending target with the rod 10, as shown in Fig. 3a, a radial correction is applied to the rod 7 by the groove 63. The Specification as open to inspection under Sect. 91 (3) (a) also describes a simplified form of apparatus intended for firing with a number of typical speeds over short and long ranges only. This subject-matter does not appear in the Specification as accepted.
Patent GB-1391544-A (GB)
Title: Cigar manufacture
IPC: B07C5/30
Filed: 1972-08-07
Abstract: 1391544 Check weighing cigar bunches GALLAHER LTD 1 Nov 1973 [7 Aug 1972] 36749/72 Heading A2C [Also in Division G1] Cigar bunches, prior to wrapping are check weighed and those which lie outside a predetermined weight range are rejected. Cigar bunches 5 are ejected from slots 3 in the second of two heat moulding drums into holders 7 mounted on chains 8 passing around sprockets 9 and driven intermittently. Each holder 7 consists of a pair of spaced U shaped yokes. As a cigar bunch is carried along the lower run of the chain 8 it rests on a support 10, and at the end of the support 10 it drops onto the weighing receptacle 12 of a weigher 13. After weighing, the cigar bunch is lifted by a pusher 14 back into the holder from which it dropped, chains 8 being stationary during each weighing period. The cigar bunch is then carried along curved surface 16 and, if of acceptable weight along curved surface 17 to the upper run of chains 8. If the weight is unacceptable, solenoid 19 pivots member 18 to reject the cigar bunch. A sensor 23 senses an empty holder and signals the wrapping station that no wrapper is required for that holder. The weight signal from weigher 13 is compared with under and over weights set by potentiometers 26A, 26B in comparators 25A, 25B which give a logical 1 output if the cigar bunch is under or over weight respectively. If the bunch is of acceptable weight, an inverting input AND gate 28 produces a logical 1 output. The logic circuit is triggered immediately prior to a cigar bunch being lifted from the weigher by means of a switch 29 operated by the drive for drum 4. Providing the presence of a cigar bunch is detected by a sensor 30 at the weigher closure of switch 29 causes a pulse from device 32 to pass through AND gate 31 to AND gates 27A, 27B, 27C so that one of the set /reset latching flips flops 33A, 33B, 33C is set according to whether the cigar bunch is under weight, of acceptable weight, or overweight respectively. OR gates 34A, 34B and 34C prevent more than one of the flip flops 33A, 33B, 33C remaining in the set state. OR gate 35 operates solenoid 19 if the weight is unacceptable Counters 37A, 37B, 37C count the numbers of underweight, acceptable weight and overweight bunches and counter 39 counts the total number of bunches weighed.
Patent GB-368381-A (GB)
Title: Improvements in and relating to roof girders and their supporting means
IPC: E21D17/00
Filed: 1930-12-05
Abstract: 368,381. Mine-roof supports. RAINE & CO., Ltd. and FERGUSON, H. W. G., Gibb Chambers, Westgate Road, Newcastleon-Tyne. Dec. 5, 1930, No. 36768. {Class 20 (ii).] A curved roof girder for use in mines has one of its ends cut on a plane passing inside the radius of curvature of the girder and fitted with a shoe B of uniform thickness secured bv a tang B<1> to the girder the end of the girder being fixed to the side of the tunnel by a wedge E driven vertically. The other end of the prop may be cut square and fitted with a shoe having a wedge surface disposed horizontally the fixing being caused by an horizontally driven wedge F. Alternatively, the end of the girder may be tapered in a plane at right-angles to the flanges, and fitted with a tapered shoe G which coacts with a parallel-sided packing piece H to fix the girder. The Provisional Specification describes also a packing wedge tapered in two directions at right-angles, for use with a shoe B in which the end of the girder is also tapered in two directions at right-angles.
Patent GB-899623-A (GB)
Title: Improvements in or relating to method for determining the magnitude of the angular rotation of the plane of polarization of a light beam by a substance
Inventor: ROUY AUGUSTE LOUIS MARIE ANTOI
IPC: G01J4/04
Filed: 1958-04-24
Abstract: 899,623. Polarimetry. DAYSTROM Inc. April 24, 1958 [April 24, 1957], No. 36850/57. Class 97(1). [Also in Group XL(b)] The optical rotation of a substance is determined by placing the substance between a polariser and an analyser and measuring photo-electrically the intensities of the light beams emerging from the analyser for two reference positions in which the polarising axes of the polariser and analyser are inclined at known angles of opposite sign. These angles are α+e and -α+e, e being a deviation factor introduced to improve linearity of response and equal to where # o  is the angular rotation for which the departure from a linear response is zero. The optical rotation of the substance is deduced from the ratio of said intensities, the difference between said ratio and its reciprocal, or the ratio of the difference to the sum of said intensities. A mathematical analysis explaining the basis of the method is given in the Specification which describes also apparatus for carrying out the method. In the form shown in Figs. 8 and 11, light from a lamp 10 is reflected by a Mangin mirror 12 through a rotatable colour filter disc 15 and through an adapter 19 to a photo-cell 16 connected to an indicating instrument 17. The photo-cell is mounted on a support 18 rotatable, about an axis perpendicular to the light beam, for calibration purposes. The adapter 19 comprises a test tube for the substance to be tested and is mounted in a body 23 removably mounted in a holder 20 having apertures 22 aligned with the optical axis and with apertures in the body 23. Mounted over the body apertures are polarising films 24, 25 with their polarising axes inclined at a known angle +α+e. With this arrangement, the reading on meter 17 is noted and then a similar arrangement having the polarising axes of films 24, 25 inclined at an angle of -α+e is inserted in the light path and the beam intensity again measured. In a modification, the polariser film 24 may be rotatable on the body 23 so that, with the aid of a scale on a fixed plate, it can be set in the two reference positions relative to the fixed analyser 25. In a further form, Fig. 15, the polarising film 24 is replaced by two laterally spaced polarising films 41, 42, these films being carried by a slidable plate 40 and the analyser 25 is similarly replaced by slidable analysers mounted in the opposite face of the holder, the two plates being mechanically connected for simultaneous movement. Alternatively, only a single analyser is provided so that the two light intensity measurements can be made without removing the holder from the light path. In yet another arrangement, Fig. 17 not shown, the two polarising films are carried by a pivoted plate. Specification 715,057 is referred to.
Patent GB-940126-A (GB)
Title: Vulcanization of elastomer blends with sulphur and peroxides
IPC: C08L23/16
Filed: 1961-10-17
Abstract: 940,126. Vulcanizing rubber blends, indiarubber compositions. ESSO RESEARCH & ENGINEERING CO. Oct. 17, 1961 [Oct. 20, 1960], No. 37152/61. Headings C3P and C3Q. A blend of a rubber having an unsaturation value between 50 and 100 mole percent, and from 20 to 80 wt. per cent of an ethylene-propylene elastomeric polymer produced by a low-pressure process is vulcanized by heating the blend with sulphur and a dialkyl or alkyl aroyl peroxide, or a halogenated derivative thereof, and optionally carbon black, at a temperature in the range of 200 to 400‹F. for a period of time within the range of 5 to 150 minutes. The rubber may be a natural rubber such as smoked sheet, or a synthetic diene-type rubber such as butadienestyrene, butadiene-acrylonitrile, polychloroprene, polyisoprene, or polybutadiene. Specified peroxides are benzoyl, chlorobenzoyl, bromobenzoyl, dicumyl, 2, 5-bis (t-butylperoxy)-2, 5- dimethyl hexane, and tert. butyl perbenzoate.
Patent GB-364795-A (GB)
Title: Improvements in or relating to means for regulating the flow of gases or fluids
IPC: F16K5/10
Filed: 1930-12-11
Abstract: 364,795. Gas &c. regulating; nozzles. KEMPTON, C. H., Stangate- House, Westminster Bridge Road, London, and BISSELL, W., 8A, Castle Street, Warwick. Dec. 11, 1930, No. 37319; [Classes 69 (iii) and 135.] A gas or other fluid regulator, particularly for atmospheric gas burners, comprises a metal cap 10 formed with a plurality of outlet apertures 10b and a substantially flat spring 11 extending transversely across the cap and adapted to be pressed as by means of an adjustable spindle 3 so that the flow of fluid through certain of the apertures 10b is prevented or partially obstructed. The spring may be arranged to control a single central aperture. of larger diameter than the surrounding apertures. In the form shown, the spindle 3 extends through a brass bearing bush 2 and has an intermediate screw-threaded portion 3a engaging a reduced screw-threaded bore 7 in the body 1, an operating nut 4, having a milled flange, being screwed on the outer end. The outward movement of the spindle is limited by a shoulder 6. Alternatively, a screw or stud may be fixed to the flange of the nut 4 and co-operate with abutments on the body. The Provisional Specification states also that the outward movement of the spindle may be limited by an adjustable sleeve or collar screwed on the spindle and co-operating with a fixed abutment within the body.
Patent GB-1102519-A (GB)
Title: Improvements in or relating to a staying system for a pivotally connected arm
IPC: A47C7/66
Filed: 1966-08-23
Abstract: 1,102,519. Stays for furniture. R. MEIER. 23, Aug., 1966 [20, Oct., 1965], No. 37710/66. Headings E2B and E2F. A staying system, for an arm incorporated in camping and gardening furniture and the like, comprises a locking lever or stay 9 adapted to rock with reference to a support 6 round an axis 10 parallel with the axis 5 pivotally carrying the arm 1, while a spring 11 urges said lever 9 into a rotary movement in a predetermined direction so as to urge the edge of the lever 9 into engagement with the arm 1 through the agency at a tenon 14 carried by the arm and engaging a recess 17 in the edge of the lever 9, whereby the engagement of the tenon in the recess during a pivotal movement of the arm 1 locks the latter in a predetermined operative position. The length of the lever 9 is sufficient for its edge to engage the tenon 14 even when the arm 1 is collapsed over the support 6. The coil spring 11 is wound round the pivotal axis 10 of the lever 9 and at one end engages an axial bore 12 in the pivot 5 and at its other end 13 engages the upper edge of the lever 9. The pivot 10 of the lever forms an abutment for the arm 1 in its operative position. The arm 1 is of tubular section and has an end plate 3 connected to a pivot 5 on the support 6. Pairs of arms and levers are connected by cross-members 20 and 21 respectively. In a modification, the locking lever 9 may be provided with a succession of recesses 17 so that the arm may be locked in various positions. In a further modification, the recesses may be on the plate 3 of the arm 1 and the tenon 14 may be on the lever 9. An arm of variable length (Figure 3) consists of telescopic sections 2 and 22 respectively secured together by a screw 23 engaging a tapped hole 24 on the section 2. A longitudinal groove 25, formed by a depression on the extension 22, terminates short of the ends of the extension so that, when the screw 23 is slightly released, the extension can slide outwardly until the end 27 of the groove 25 abuts against the tip of the screw 23. The sections are locked by tightening the screw. Used as a table leg, the arm may have a shoe 29.