baber/WOPTO huggingface dataset:
Patent GB-309642-A (GB)
Title: Improvements in and relating to magnetic compasses
IPC: G01C17/00
Filed: 1928-01-19
Abstract: 309,642. Imperial Airways, Ltd., Hall, H. L., and Stirling, J. W. Jan. 19, 1928. Magnetic compasses. - For removing air bubbles from a liquid magnetic compass, a reservoir is provided above the lower surface of the inspection window, the reservoir having free communication with the top of the bowl, and the top of the reservoir being in permanent communication with the atmosphere. In the form shown in Fig. 1, a separate reservoir 2 is connected to the bowl 1 and communicates therewith by a passage 3. The filling plug 5 is formed with an air vent through which bubbles can escape. The compass can be so mounted that it can be tilted to bring air bubbles into proximity to the passage 3. In the form shown in Fig. 4 the bowl is formed with an annular reservoir 7 above the inspection window 6, this reservoir being provided with a plug 5 having an air vent.
Patent GB-992203-A (GB)
Title: Improvements in and relating to the production of terephthalic acid
Inventor: ALAGY JACOB
IPC: C07C63/26
Filed: 1964-01-15
Abstract: In the manufacture of terephthalic acid by oxidizing a p-dialkylbenzene or an intermediate oxygenated derivative thereof with molecular oxygen in the liquid phase in the presence of an oxidation catalyst comprising a compound of a heavy metal, means are provided for crushing the terephthalic acid as it is formed to such a degree that at least 50% of the acid is in the form of grains of a smaller size than 100 microns.  The process may be effected in two stages, the first stage corresponding to the oxidation of a p-dialkylbenzene to a p-alkylbenzoic acid and the second stage corresponding to the conversion of the p-alkylbenzoic acid into terephthalic acid, and in that event the crushing means are provided only in the second stage.  The oxidation may be effected at 80-275 DEG  C. under atmospheric or raised pressure and, when there are two stages, the first may be effected at 80-130 DEG  C. and the second at 120-160 DEG  C.  Examples are given in which the starting materials are p-xylene, p-toluic acid and p-diisopropylbenzene.  Other specified starting materials are p-diethylbenzene, p-ethyltoluene and p-propylbenzoic acid.
Patent GB-561687-A (GB)
Title: Improvements in spinning buckets
IPC: D01D7/02
Filed: 1943-02-05
Abstract: 561,687. Spinning buckets. AMERICAN VISCOSE CORPORATION. Feb. 5, 1943, No. 1929. Convention date, March 20, 1942. [Class 120 (ii) [Also in Group II] The cover 5 of a spinning bucket 2 is placed in position and locked centrifugally by sliding bolts 4 which are projected radially outwards so that the tips 7 engage an annular groove 3 in the bucket wall. Pins 10a in the cover pass through slots 6 to limit the travel of the bolts. Projections 9 are used for finger pressure to withdraw the bolts or a tool may be used. Where the bucket is used for collecting artificial filamentary material, a removable element 14 for supporting the cake in the bucket, may be used. A cake-removing device 15 comprises a cylindrical member 16 which is a slidable fit inside the cover 5, inwardly flared portions 17 which seat within the element 14, and the spring element 18 having hooks 19 which spring outwardly into the undercut portions 20, and clamp element 14 into firm seating engagement with the flared portion 17. The part 21 is provided with a tubular handle 22 and a sleeve which engages the sloping surfaces 9 to withdraw the bolts. Another method of removing the cover and releasing the cake (see Fig. 4) is by inverting the bucket into two guides 24, 25 so that a vertical cylinder 26 forces the bolts inwards, and the bucket may be lifted clear.
Patent GB-1066914-A (GB)
Title: Improvements relating to gyroscopic apparatus
IPC: G01C19/20
Filed: 1965-01-18
Abstract: 1,066,914. Bearings. PRECITRONIC GESELLSCHAFT FUR FEINMECHANIK U. ELECTRONIC m.b.H. Jan. 18, 1965 [Nov. 17, 1964], No. 2072/65. Heading F2A. [Also in Division G1] Gyroscopic apparatus comprises an outer rotor 9 and an inner rotor 21, the inner rotor being of annular shape and mounted for rotation inside the outer rotor on a spherical gas bearing. The outer rotor 9 is mounted for rotation on conical gas bearing members 10, 11 in an inner cardan ring 6 which itself is mounted for rotation in an outer cardan ring 5 about an axis 8. The outer cardan ring 5 is in turn rotatable about an axis 7 in a housing 1. The central axle 22 of the outer rotor 9 is provided with a spherical gas bearing member 23 for mounting the inner rotor 21, this rotor 21 being rotated by virtue of friction in the spherical gas bearing. In an alternative construction (Fig. 4) the inner rotor (21) rotates about a vertical axis on a spherical gas bearing member (23) mounted on a single axle (49). In the spherical gas bearing of Fig. 1 gas is supplied to passages 25 in the member 23, and passages 28 are arranged in the inner rotor 21 to provide a centrifugal pumping action. In (Fig. 4) the inner rotor is solid and the outer is totally enclosed and provided with passages (32) to give the necessary pumping action. The gas supply inlets on the member (23) are arranged at the corners of regular pentagons, gas outlets being arranged at the centre of each pentagon. Also the gas supply arrangement of Fig. 4 can be used with the apparatus shown in Fig. 1.
Patent GB-687269-A (GB)
Title: Improvements in or relating to magnetic clutches
IPC: H02K49/10
Filed: 1949-01-26
Abstract: 687,269. Magnetic clutches. WAREHAM, W. G. Jan. 26, 1950 [Jan. 26, 1949], No. 2125/49. Class 35. A magnetic coupling comprises alternately spaced permanently magnetic discs 5, 7, slidably splined to an outer driving casing 1 and an inner driven shaft 6 respectively, the driving force being varied by altering the axial spacing of the discs. Spring members 8 which serve to space the discs are compressed to increase the driving force by means of a sleeve member 9 which is moved axially against a returning spring 14 by means of a shoe 13.
Patent GB-305133-A (GB)
Title: Apparatus for controlling at a distance the operation of a toy
IPC: A63H17/00
Filed: 1929-01-22
Abstract: 305,133. Soc. Industrielle de Ferblanterie. Jan. 31, 1928, [Convention date]. Mechanical toys. - In a toy automobile controlled from a distance by a single flexible transmission of the Bowden wire type, a single sliding bar operated by the wire is employed for starting, stopping, steering, and reversing the toy. As shown in Figs. 1 and 3, the Bowden wire 1 is connected at one end to a spring-retracted bar 17 slidable longitudinally of the toy, and at its other end is attached to a bell-crank 3 operably connected to a control wheel 10 through a spindle 9, crank 8 and link 7. The sheath 2 is secured at one end to the frame of the toy, and at the other to a casing 5 carrying the wheel 10 and adapted to be held in the hand of the operator. Steering of the toy is effected by a link 17<a> connecting the forward end of the bar 17 with an arm 50 on one of the stub-axles. The toy is propelled by a spring motor 30, the shaft 29 of which carries an arm 28 that, when the bar 17 is in its forward position, is engaged at its end 47 by a shoulder 27 on the bar to stop the motor. Reversal of the direction of movement of the toy is effected by a longitudinal movement of a shaft 31, that is arranged coaxially with the shaft 29 and is provided with two bevel wheels 32, 33 for alternative engagement with a bevel wheel 35 on the driving axle 25. The shaft 31 is connected to the motor shaft 29 through a disc 37 carried by the shaft 31 and apertured to receive a pin 36 projecting from the arm 28. The shaft 31 is normally held in its forward position by a spring-pressed lever 39, that is pivoted at 40 and provided at its free end with jaws 38 enclosing the rim of the disc 37. The lever 39 is moved rearwardly upon alternate forward movements of the bar 17, by the co-operation of a pawl 45 thereon, with a ratchet wheel 43 carrying pins 42 that engage the lever. In a modified form of the toy, Figs. 5, 6 and 7, the spring 30 drives a wheel 61 geared to a centrifugal governor 66 enclosed in a casing 67 pivoted at 68. In the forward position of the bar 17 an abutment 70 thereon displaces the casing relatively to the governor and stops the motor. Reversal is effected by the rocking of a plate 73 by a cam 75 that is mounted on a shaft 76 and operated from the bar 17 by a pawl 78 and ratchet wheel 77. In one position of the plate the wheel 61 is connected to the driving axle 25 through a pinion 62 and gears 63, 71, 35; and in the other position through pinion 72a and gears 72, 35. Steering of the toy is effected through a spring retracted bell-crank lever 52, Fig. 6, operably connected to a rod 54 connecting the stub axles. The connection between the Bowden wire and the wheel 10 comprises a rack 3a attached to the wire, and a pinion on the spindle 9.
Patent GB-103876-A (GB)
Title: Improvements in Portable Work Benches.
Inventor: ROSE PERCY FRED
IPC: B25H1/04
Filed: 1916-02-17
Abstract: 103,876. Rosa, P. F., and Joyce, R. R. R. Feb. 17, 1916. Benches, work.-A portable work bench comprises a bench top 1 supported by A-shaped standards 2, 3 connected by tie-rods 4, the bench framework being provided with a trolley 5 having three wheels 8, 11. The trolly is pivoted on pins 12 in lugs 13 of the tie-rods 4, and has fixed to it a lever 15, 16, by which it may be depressed from the position shown in Fig. 4 to bring the wheels on to the ground, as shown in Fig. 1, so that the bench may be wheeled about. The lever is held by a catch in its depressed position. On releasing the lever from the catch, the trolly will assume the position shown in Fig. 4, owing to the weight of the bench on the left of the wheels 11, thus allowing the bench to rest on the ground. Another lever 18 fixed to the framework 3 is provided for steadying purposes whilst operating the lever 15, 16. A cast-iron or other tray 19 is fixed beneath the bench top to receive tools and for other purposes.
Patent GB-196117-A (GB)
Title: Improvements relating to crutches, walking sticks and the like
IPC: A61H3/02
Filed: 1922-01-26
Abstract: 196,117. Rivett, H. Jan. 26, 1922. Ferrules.-A ferrule a of a crutch or stick telescopes within a sleeve b, in the outer end of which slides a sleeve e. A ball-headed stud g carrying a rubber pad h, which contacts with the ground, is fitted into the sleeve e. Helical spring i, j located between the ferrule a and washers k, l maintain the device in its extended position, but allow relative movements of the parts when pressure is applied to the crutch &c.
Patent GB-1123959-A (GB)
Title: Continuous direct smelting of sulphide ores and concentrates
IPC: C22B15/04
Filed: 1967-01-17
Abstract: In a continuous smelting process, sulphide ores and concentrates are introduced substantially continuously into circulating molten material in a smelting zone, the molten material flows substantially continuously to an elongated refining zone wherein an oxygen containing gas is injected into the molten material, at a plurality of points along its flow path, the slag formed is diverted from the smelting or refining zone into a slag separation zone, which is maintained under reducing conditions, the slag flow being counter-current to the matte or metal flow in at least part of the refining zone, metal being with-drawn from the refining zone and slag from the slag separation zone.  In the slag separating zone gentle eddying (e.g. in the surface layers of the slag) may be induced by using gas jets or burner flames and a solid reducing agent (e.g. iron pyrites or a carbonaceous reducing agent) may be added.  The process may be applied to sulphide ores or concentrates of Ni, Pb or Cu.
Patent GB-130388-A (GB)
Title: Improvements connected with Lever Control Mechanism.
Inventor: GLEDHILL ARTHUR HENRY
IPC: B64D1/04
Filed: 1918-02-12
Abstract: 130,388. Gledhill, A. H. Feb. 12, 1918. Dropping bombs and other articles from a height.-In levercontrol mechanism of the kind described in Specification 130,018, for apparatus for releasing bombs or other bodies from aircraft of the kind described in Specification 128,603, means are provided for controlling the main lever from any one of a number of auxiliarv levers. A main lever A engages a zig-zag .slot a<5> in a quadrant a<6>, and is pivoted to move laterally on a plate a<1> turning on a fixed pivot a<2>. One or more auxiliary levers B move along a straight slot under control of a spring b<4> and are connected by a flexible connexion a<4> with the plate a<1>, passing over a guide pulley a<9> and an arm a<8> projecting laterally from the lever A. Movement of the lever B tilts the lever A and moves it along the inclined arms of the slot a<5>, a spring connected to the lever A returning it along the straight arms of the slot when the pull on the lever B is relaxed. The quadrants are all suitably engraved or otherwise arranged to serve as indicators.
Patent GB-681282-A (GB)
Title: Improvements in or relating to brake assemblies
IPC: F16D65/22
Filed: 1950-01-31
Abstract: 681,282. Drum brakes. INDIA RUBBER, GUTTA PERCHA & TELEGRAPH WORKS CO., Ltd., TARRIS, F. J., and WEBB, D. Jan. 23, 1951 [Jan. 31, 1950], No. 2539/50. Class 103 (i). A brake comprising a frame 1, a shoe or shoes 8, a pair of expansible tubes 4, 5 disposed side by side between the shoe or shoes and the frame and arranged to be expanded by fluid pressure to apply the shoe or shoes to a relatively movable friction surface (not shown), and also comprising spring means acting in opposition to the tubes to disengage the shoe or shoes on release of fluid pressure, is characterized in that at least one of the shoes has a pillar 12 secured thereto and extending between the two tubes through the frame, away from the friction surface; the spring means 13 acting between the pillar and the frame. As shown, the tubes 4, 5 of an internal expanding drum brake are connected to a common fluid supply 7. A plurality of shoes 8 carry bars 10 of friction material disposed in lateral slots in the arcuate shoe surface. The spring 13 engages a recess 14 in the frame 1 and a collet 15 which has a slot 17 allowing it to be slip over the end 16 of the pillar 12 and rotated through 90 degrees, whereupon the pillar head 16 engages slots 18 and is locked therein. The post 12 is a sliding fit in the frame 1 and serves as an anchor for the shoe. Side flanges 9 on the shoes 8 co-operate with the frame 1 to guide the shoes radially.
Patent GB-480048-A (GB)
Title: Improvements in or relating to staple driving machines
IPC: C03B23/031
Filed: 1937-01-29
Abstract: 480,048. Stapling hand -, tools. HOTCHKISS CO., E. H. Jan. 29, 1937, No. 2651. Convention date, Feb. 15, 1936. [Class 89 (iii)] A tool for . driving staples in difficultlyaccessible places comprises a casing having a hand-grip portion 12 and an elongated head portion 11 with a flat extension 27. The portion 11 houses a guide 13 along which a strip of staples 14 is fed, by a spring pusher 15, with the staple legs horizontal, a driver 21 with a head 23, and a slide 19 and spring- pressed block 31 which co-operate to arrange the lowest staple in the driver passage with its legs vertical. The lowest staple rests normally with its cross-bar on a shoulder 35 of the block 31. When the driver 21 is raised, the block moves forward to position the crossbar in the driver passage. The slide 19 is then lowered, so that its curved lower end walls turn the staple legs to a vertical position, and then force the block 31 out of the driver passage. The casing portion 12 houses 'the means for operating the driver and slide. When the hand-lever 37 is raised, its arm 60 first engages a dog 52 to rock a lever 46 and so compress a spring 57. The ends 48 of the lever 46 engage in slots 49 in the driver head 23, so that the driver is raised. At a certain point, the lever 46 is latched by a pawl 66 engaging in a notch 51, and extensions 40 ori the hand lever 37 engage notches 41 in the slide 19 so as to lower the latter for turning the staple legs vertical. Finally, the arm 60 disengages the pawl 66 from the notch 51, thus allowing the spring 57 to expand and impart its driving stroke to the driver. Two modified arrangements of the operating levers on the casing portion 12 are described.
Patent GB-1319042-A (GB)
Title: Cold cathode gas discharge tubes
IPC: H01J17/44
Filed: 1972-01-20
Abstract: 1319042 Cold cathode tubes SIEMENS AG 20 Jan 1972 [22 Jan 1971] 2708/72 Heading HID A cold cathode tube comprises a pair of symmetrically arranged main electrodes 1, 2 in an insulating housing 3 having a control electrode 4 on its external surface, and each of the opposed surfaces of the main electrodes has a metal ring 6 forming a hollow electrode carrying a layer 7 of activating material. The rings 6 may be stamped from iron and have sharp edges to promote ignition. A radio-active source may enhance ionization in the tube.
Patent GB-413591-A (GB)
Title: Method of and means for heat treating glass articles
IPC: C03B27/012
Filed: 1934-01-26
Abstract: 413,591. Electric furnaces. CORNING GLASS WORKS, Walnut Street, Corning, New York, U.S.A.-(Assignees of Sherwood, R. G. ; 31, East 4th Street, Corning, New York, U.S.A.) Jan. 26, 1934, No. 2764. Convention date, May 26, 1933. [Class 39 (iii).] A means for heat-treating glass articles for the purpose of tempering or annealing them, comprises an element which is heated uniformly but has a radiating surface which is polished in selected areas and blackened in others, so that a glass article which is exposed to heat radiated from the element is heated unequally. The device may be used for raising the edges of the article to a higher temperature than the remainder in order to counteract the tendency of the edges to cool more rapidly during tempering or annealing. For heating glass sheets, two radiating elements 10, 11 are provided with projecting flanges 12, 13 which butt together to form a chamber 18 into which the sheet 19 can be introduced by means of tongs 20. Each element is heated by electric resistance elements 14, which heat the radiating surfaces of the elements uniformly. The inner faces of the elements are blackened in areas 21 adjacent the edges of the glass sheet in order that these areas may radiate heat more freely than the central areas 23 which are polished or otherwise rendered less heat-radiating. The elements may be shaped for heating other forms of glassware, such as baking-dishes.
Patent GB-1276245-A (GB)
Title: Enzymatic production of gluconic acid
IPC: C12P13/00
Filed: 1970-01-20
Abstract: 1276245 Aldonic acids CPC INTERNATIONAL Inc 20 Jan 1970 [29 Jan 1969] 2799/70 Heading C2C [Also in Division C7] Aldonic acids (e.g. gluconic acid) are produced by subjecting an aldose bearing material to enzymatic conversion with an aldose oxidase (e.g. glucose oxidase) to produce a conversion liquor, which liquor is then subjected to an eleetrodialysis step to separate the aldonic acid and recover the aldose oxidase. The electrodialysis step is preferably effected when 50% of the aldose has been converted; and during the conversion the pH is controlled to a value in the range 4À2 to 7. The process may be continuous; the recovered enzyme may be reused; and the enzymatic conversion may be effected in the electrodialysis cell.
Patent GB-770290-A (GB)
Title: Improvements relating to multi-cavity magnetrons
Inventor: LINHART JIRI GEORGE
IPC: H01J23/22
Filed: 1954-01-29
Abstract: 770,290. Magnetron oscillators. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 20, 1955 [Jan. 29, 1954], No. 2815/54. Class 39(1). A multi-cavity magnetron comprises a plurality of damping loops for damping out modes other than the # mode each loop comprising two radial members 5, Fig. 1, and the intercepted portions of conductive ring 3 and envelope 1 lying between the members 5, radial members 5 bisecting their respective cavities in which they are contained so that the flux linkages of the cavity fields with the loop cancel for the # mode, but do not cancel for other modes and damping currents flow in the loops for such other modes. The loops are positioned in regions of maximum magnetic field component of the electromagnetic fields of the cavities i.e. towards the outer wall of the magnetron, to cause maximum damping of the unwanted modes. The radial members 5 can be lossy and can be provided if desired with means for dissipating heat. In the particular form shown in Fig. 1 members 5 are wires and conductive support ring 3 which passes through apertures 4 in the anode segments 2. The wires 5 are embedded in insulating material 6 to form seals and are connected to lengths of lossy coaxial cable 8. In a modification, Fig. 2 (not shown), ring 3 is replaced by a cylinder supported by radial vanes. The cylinder may pass through clearance slots in the anode segments or the anode segments may pass through holes in the cylinder. The vanes are lossy being formed of ceramic or of a coating on glass, and their shape assists in dissipating heat. In another modification, Fig. 3 (not shown) the radial supports project outwardly into an external water cooling jacket, which functions as the equivalent of lossy cable. The Provisional Specification states that the damping loops are associated with alternate or all anode segments.
Patent GB-574759-A (GB)
Title: Improvements in or relating to turbine blades
IPC: F01D5/30
Filed: 1944-02-16
Abstract: 574,759. Elastic-fluid turbines. AKTIEBOLAGET LJUNGSTROMS ANGTURBIN. Feb. 16, 1944, No. 2856. Convention date, .Tan. 16, 1943. [Class 110 (iii)] A turbine blade 10 having a root formed with two or more projections 20, 22, has bearing surfaces 34, 36, with the rotor disc 14, in which bearing surfaces are disposed at an angle to each other. Planes passing through the bearing surfaces may intersect on the axis 24 of the blade, or at a point 38, the distance a-b being considerably less than the average distance between the bearing surfaces. Clearances 40, 42, allow for differential expansion between the blade root and the rotor. The angle between the planes passing through the bearing surfaces is at least 20‹. The blades are of austenitic steel and the rotor of martensitic steel. The roots of guide blades may be similarly formed.
Patent GB-144345-A (GB)
Title: Receiving or collecting devices or mechanism for sound waves or vibrations
IPC: G01S1/72
Filed: 1919-02-07
Abstract: 144,345. Browning, D. N. Feb. 7, 1919. Receiving and detecting audible signals; detecting subaqueous sounds; signalling proximity of icebergs.-Relates to sound detecting and locating apparatus for hydrophones, aerophones, and the like, of the kind in which a microphone is used in conjunction with a tuning-fork in order to accentuate the sensitiveness of the device to notes of a particular frequency, and comprises an arrangement in which plates or disks are directly attached to the limbs of the tuning-fork, but are otherwise unconstrained. The device is stated to be suitable for locating icebergs by picking up the echo when the ship's siren is sounded. In the arrangement shown in Figs. 1 and 2, the microphone f is arranged between the limbs of a tuning-fork b, to which are also directly attached thin receiving disks or plates c of mica, metal, &c., the disks c being secured in openings in the limbs with insulating bushes d through which pass screw studs e supporting the microphone and carrying nuts h between which the lead wires i are secured, mica washers q being interposed between the disks c and the inner nuts h. The device is arranged in a heavy metal casing or receiver a, cylindrical externally but internally shaped with a front portion a<1> in the form of a parabolic reflector focusing the sound waves within the area occupied by the front receiving-disk c, whilst the rear wall a<3> is also of parabolic form with a focus within the area of the rear receiving- disk c. The intermediate portion a<2> of the interior surface is cylindrical. The complete receiver may be fitted within a rubber sphere or enclosing casing with oil or other medium to transmit the vibrations. The device may be used in revolving directional hydrophones or in connexion with aerophones and other sound-wave detecting-devices.