baber/WOPTO huggingface dataset:
Patent GB-414012-A (GB)
Title: Device for use in darning
IPC: D04B17/00
Filed: 1934-04-07
Abstract: 414,012. Darning. UNITED THREAD MILLS, Ltd., and KIRKWOOD, D. R. M., 50, Bothwell Street, Glasgow. April 7, 1934, No. 10553. [Class 112.] A device for use in darning fabrics comprises a skeleton frame 1 with a row of parallel threads or yarns 2 secured thereto. The threads 2 are laid over the hole and form the warps of the darn, the needle threads becoming the weft. When the hole is darned the frame 1 is removed, e.g. by cutting. The threads 2 may be secured to the frame by adhesive.
Patent GB-843092-A (GB)
Title: Improved uranium vanadium recovery process
IPC: C01G43/025
Filed: 1951-05-04
Abstract: Uranium and vanadium values are recovered from acid solutions by reducing the dissolved uranium and vanadium to the tetra and trivalent state respectively electrolytically or preferably with zinc, aluminium or iron, and adding phosphate ions to the reduced solution at a pH of 1 to 1.5 thereby precipitating the uranium as phosphate.  The latter is separated and further phosphate ions are then added and the pH adjusted to 2.5 to 3.1 thereby precipitating vanadium phosphate.  The invention is particularly applicable to the recovery of uranium and residual vanadium from the water-insoluble residues left after leaching salt roasted carnotite or roseoelite to dissolve out sodium vanadates.  Such insoluble residues are dissolved in acid and treated according to this invention.  The initial acid leach solution may be acidified with hydrochloric acid for example to a pH less than 1 and reduction effected with zinc, aluminium or iron, preferably at 50 to 90 DEG C.  Phosphate ions are added to the reduced solution in the form of phosphoric acid pyrophosphoric acid or alkali metal salts thereof and the pH is preferably adjusted with ammonia gas. Uranium precipitation is preferably effected at 50 to 90 DEG C. and the uranium phosphate precipitate may be converted to uranium dioxide by fusion with alkali metal hydroxides or carbonate. The solution remaining after the vanadium has precipitated is treated with phosphate ions, generally between 1 and 8 times the molar concentration of vanadium, and the vanadium precipitated by adjusting the pH to 2.5 to 3.1.  Vanadium phosphate precipitate may be roasted at 350 to 650 DEG C. and if desired salt may be added to the roast and the vanadium leached from the roasted material with water. Alternatively the vanadium phosphate may be recycled to the original salt roast of the ore.
Patent GB-806400-A (GB)
Title: Improvements in or relating to centrifugal clutches
IPC: F16D43/18
Filed: 1957-04-01
Abstract: 806,400. Centrifugal clutches. JURGENSEN, P. April 1, 1957, No. 10591/57. Class 80 (2). A centrifugal clutch has radially-moving shoes lined with friction material, which engage radially extending ears on an inner member such that the shoes disengage from the ears when the friction lining is worn. A driving member 3 has radial ears 4 engaging longitudinal grooves 13 in shoes 12 carrying friction linings 14. In engagement the linings 14 contact a drum 11 rigid with the driven shaft. The distance between the outer surface of the ears 4 and the inner surface of the drum 11 is equal to, or greater than the radial thickness of the shoes 12 less the linings 14, such that on wear of the linings the shoes disengage the ears to free the clutch. Embodiments are shown in which the outer surface of the drum is formed as a pulley and the drum is carried on bearings journalled on a boss on the driving member 3. The shoes may be resiliently mounted on the ears, and the ears may be formed on the shoes. An end cover held by screws or a circlip facilitates replacement of the shoes.
Patent GB-578376-A (GB)
Title: Improvements relating to sighting apparatus for guns
IPC: F41G1/387
Filed: 1943-06-30
Abstract: 578,376. Ordnance sights. HOUGHTON-BUTCHER MANUFACTURING CO., Ltd., and HUNTER, D. G. June 30, 1943, No. 10618. [Class 92 (ii)] The sighting telescope 3 associated with a gun 1 is provided with a shutter 29, normally open up to the moment of firing the gun, but closed on firing to obscure the flash from the vision of the gunner. As shown, an attachment 30 to the eye-piece of the telescope includes a pivoted shutter 29 which is moved to closed position by a Bowden wire 11 operated by a spring device within a cylinder 5 that is released when the breech-block commences to recoil. The shutter is returned to open position. when the breech-block returns to the closed position. In a modification, the shutter is closed by a solenoid energized when the gun is fired and is closed after a time delay introduced by a dashpot or escapement device.
Patent GB-647874-A (GB)
Title: Improvements in and relating to sand or shot blast plant
IPC: B24C9/00
Filed: 1949-04-21
Abstract: 647,874. Sand or shot blast. KRANENBURG, J. VAN. April 21, 1949, No. 10632. Convention date, Oct. 4, 1948. [Class 60] A self-contained sand or shot blast plant is enclosed in a housing 1 the upper half of which is occupied by the blast cabinet 2 and an arrestor space 3 containing a number of filter frames connected to an exhaust ventilator 5 in the lower half of the housing; the cabinet 2 and arrestor space 3 are separated by a well 8 which permits dust-laden air to pass but arrests the sand or shot ,and the outer well of the cabinet 2 opposite the well 8 has air inlets 10, which may be provided with a baffle plate 11. The well 8 may consist of two rows of vertically placed overlapping angle irons. The bottom of the cabinet 2 consists of a grating 12 through which the used sand or shot falls on to a trough 13 leading to the sand-blast apparatus (not shown) disposed in the space 14. Fitted to the well 8 at the side of the arrestor space 3 is a conductor plate 15 which leads into the trough 13 any sand or shot which passes the well 8. Dust passes from the arrestor 13 through funnel 7 into receptacle 6.
Patent GB-315335-A (GB)
Title: Improvements relating to irreversible rotary transmission devices
IPC: B62D7/22
Filed: 1928-04-10
Abstract: 315,335. Bricard, R., and Bricard Ancienne Maison Sterlin. April 10, 1928. Levers and rods, locking.-An irreversible rotary transmission device between coaxial shafts, in which any independent or uncontrolled movement of the driven shaft automatically brings frictional gripping means into action to stop such movement, comprises a crank pin 25 on the driving-shaft adapted to bear against one or other of a pair of loose radial levers 26, 27, the inner ends of which engage jaws 36, 37 on the driven shaft .whilst their outer ends are located between the ends of annular friction segments 32, 33 arranged within a fixed casing 23. Between the loose levers and segments are arranged loose pins 29, 30, 31, and 34 functioning as pivots. The pivots 30, 29, 31 are so. arranged that pressure of either of the jaws 36, 37 on the lever pair produces a toggle expanding effect on the friction segments, causing them to grip the casing, whilst the opposite, releasing, effect is produced by. pressure of the driving-pin 25 in either direction. The segments 32, 33 are loosely located by pins (not shown) on the crank disc. Means may be provided to enable the gripping-means to be wholly or partially put out of action at will. The driving and driven members may be directly coupled by a pin, key, pawl, or the like, rendering the levers 26, 27 inoperative, or a graduated action, regulating their play, may be obtained by use of an elliptical or camshaped coupling-pin 58, Fig. 5, on one member 21 located between jaws 60 on the other member 39, the gripping action of the parts shown in Fig. 1 being gradually reduced as the cam is rotated to reduce play in the fork 60. The same effect may be obtained by use of an adjustable elliptical driving-pin 25.
Patent GB-106581-A (GB)
IPC: D01H7/78
Abstract: 106,581. Hubbard, C. W. Oct. 12, 1916. Winding-machines; spindle apparatus.-In apparatus in which the yarn mass is built up, in layers extending transverselv to the axis of rotation upon a support in a rotary yarn-receiver, by the relative rotation of a winding-head and the yarn-receiver, the yarn-receiver 1, Fig. 1, is in the form of a can supported by a footstep bearing and connected to a driving-pulley 2. The yarn is built up on a support 7 having frictional engagement with the walls of the receiver 1 through the spring-pressed semicircular pieces 50. The winding-head 9 carries a slotted winding- plate 11, through which the yarn is delivered by means of an oscillating yarn-guide 14, Fig. 7. The driving-pulley 2 is secured to a sleeve 15 surrounding a hollow shaft 16 carrying at its lower extremity a worm 17 engaging a worm-wheel 18. The lower end of the sleeve 15 carries the wormwheel 18 and bevel and spur gearing to transmit motion to a spur-wheel 25 fast on the hub 26 of the winding-head. The hollow shaft 16 can be held stationary or rotated in either direction by worm gearing 56, 57 to vary the relative rotation of the winding-head and the yarn-receiver. The yarn is led down the hollow tube 41 and passes through an oscillating member 42 before passing to the yarn-guide 14, so that the corresponding movements of these two members will take up and let out the slack in the yarn caused bv the movements of the yarn-guide. The yarn-guide 14 and compensating-member 42 are mounted on rockshafts 30, 43 operated through cams 33, 46 loose on studs 35, 48 and driven by a gear 37, loose on a hub 38 carried by the winding-head, and driven by a connexion with the lower end of the sleeve 15. The yarn-receiver 1 can be detached from the housing 4, which depends from the driving-pulley 2, and the step bearing can be moved vertically to allow this. The bearing is supported on a spring arm 68 and comprises a spindle 59 supported in a housing 61, which slides in a support 66. A sliding locking-bar 70 holds the housing 61 in its uppermost position and is provided with a cut-away portion which can be made to register with the exterior of the housing to allow the housing to be depressed.
Patent GB-246431-A (GB)
Title: Submarine signalling apparatus
IPC: G01S1/72
Filed: 1925-04-24
Abstract: 246,431. Submarine Signal Corporation, (Assignees of Gauld, B. B.). Jan. 23, 1925, [Convention date]. Magnetic instruments.-A submarine signalling device comprises a casing consisting of a heavy back half and a light front half forming a soundemitting diaphragm, an electromagnet. with a very narrow air gap being provided between the two halves to vibrate the diaphragm directly without any intermediate transforming mechanism. The distance between the two halves of the casing is substantially smaller than the diameter of the diaphragm and the maximum for this diameter for a frequency of 1000 cycles is 15 inches. One element of the electromagnet is rigid with the diaphragm and the other with the rigid back half of the casing. The back plate 1 and the diaphragm 2 have heavy rims 6, 16, with bolt holes 3, 5, 15, 17, by means of which the rims are bolted together and the apparatus is bolted to the side of the ship. Centrally situated on the back 1 are blocks of laminations 8, arranged in a square. The corners 9 are chamfered and are welded or brazed to the plate 1. Pegs 11 help to keep the blocks in place. The blocks are slotted to receive a wire coil 13 of few turns. Armature blocks 24 are similarly at.- tached to a slightly raised boss 25 on the diaphragm 2. An air gap 29 is made by cutting away the laminations on the back plate 1. A watertight joint 21 is made between the back 1 and a ridge 22 on the rim 16, which is undercut as at 23. The device is tested by means of air pumped in through a valve 26, which is then plugged. The coil is energized by an alternating current of half the desired frequency of the note, the leads 27 entering through a watertight joint 28. The device is fitted on the side of a ship in a frusto-conical " faring " plate, and the leads are taken to it through a junction box and stuffing- box. The Specification as open to inspection under Sect. 91 (3) (a) states that the relation between the radius R of the diaphragm and the wave length A is given by the equation R=#<16>/5/20. This subject-matter does not appear in the Specification as accepted.
Patent GB-1504193-A (GB)
Title: Method of recovering oil from an underground formation and oil recovered by such method
IPC: E21B43/243
Filed: 1975-03-14
Abstract: 1504193 Oil recovery SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 14 March 1975 10731/75 Heading E1F Oil having a viscosity of from 1-10,000 cps is recovered from an underground formation comprising a first zone having a permeable pore space containing gas and trapped oil, and a second zone underlying the first zone and having a permeable pore space containing oil and communicating with the pore space of the first zone, by introducing a gaseous fluid into the first zone through first wells to heat that part of the first zone without forming a displacement front, and recovering oil from the second zone via second wells which are horizontally spaced from the nearest first wells. The second wells communicate with low pressure regions of the pore space of a portion of the second zone that is situated below an area of the first zone enclosed by the first wells. Third wells penetrate the formation to communicate with the first zone to allow gaseous fluid to escape from the first zone and so promote the distribution of the heating fluid. The heating fluid may be steam or combustion products formed by reacting air with the oil in the first zone.
Patent GB-610909-A (GB)
Title: A control system for turning indicators and headlamps on automobiles
IPC: B60Q1/36
Filed: 1946-04-09
Abstract: 610,909. Vehicle lighting systems. CLIVE, J. April 9, 1946, No. 10841. [Classes 75(ii) and 75(iv)] [Also in Groups XXXV and XXXVIII] In a control system for the indicator arms and the head lamps of automobiles the switch member which operates the indicator arms also serves to close, through a suitable control switch, the circuits of solenoids which swivel the associated headlamp. As shown in the drawing the control switch comprising two arms b and c serving to energize the operating solenoids f, h together with the arm illuminating lamps g, i, of the left- and right-hand indicator arms respectively, also energizes, when the switch v is in position shown by the dotted lines, the operating solenoids w, x of the left- and right-hand headlamps m, n respectively to cause the appropriate headlamp to swivel in the required direction. Opening the control switch v to the position shown by the full lines permits operation of the indicator arms without swivelling of the headlamps. A dipping switch o is provided by means of which the right-hand headlamp n is cut out whilst at the same time the operating solenoid u of the left-hand headlamp is energized to swivel the lamp towards the left.
Patent GB-238274-A (GB)
Title: Improvement in shaving brushes
IPC: A45D27/04
Filed: 1924-05-02
Abstract: 238,274. Simpson, A. May 2, 1924. Powder blowers. - The handle C of a shaving-brush forms a container for liquid or powder, one side of the container being normally closed bv an imperforate plunger D which when pressed serves to eject the liquid or powder through one or more apertures G in the side wall of the container. In a modification, the plunger is replaced by a flexible or resilient diaphragm. The apertures G may be formed, as shown, in a member detachably fitted in the side of the brush handle.
Patent GB-311525-A (GB)
Title: An improved tin box
IPC: B65D43/02
Filed: 1928-04-12
Abstract: 311,525. Atlas, Ltd., and Schlossmacher, F. C. April 12, 1928. Lids.-Relates to tin boxes of the kind adapted to be opened by distortion of the lid bv means of pressure applied at opposite ends of a diameter. The lid has two bulged-out projections 4 formed above depending wing portions 3, the bulges not reaching up to the edge 5 of the body portion, so that the lid remains a good fit. To open the box the wings 3 are pressed towards each other, thereby loosening the lid by enlargement of the lower periphery' thereof and permitting separation of the parts.
Patent GB-230661-A (GB)
Title: Improvements in or relating to stuffing boxes
IPC: F16J15/18
Filed: 1924-05-02
Abstract: 230,661. Thomas, J. May 2, 1924. Packing, adjusting or compressing; packing, removable casings for; packing, metallic; bushes. -In a stuffing-box of the type in which a casing containing packing is movable, by the action of the fluid pressure, on the gland 12, a spring 3 is confined between the flange of the gland and a ring 11 bearing on the end of the casing 1, and a ring 17 fitting the rod is placed between the sleeve and the end of the stuffing-box. A sleeve 9 is placed under the flange of the gland, and the gland is fitted with a bush 8. The cylinder end of the casing 1 carries a split packing-ring, or a cup leather 5, secured by a ring 14, screwed on to the end of the casing. The ring 14 is slotted to admit access of liquid to the cup leather &c.
Patent GB-1037614-A (GB)
Title: Improvements in facia blocks for building
IPC: E04B2/02
Filed: 1964-03-14
Abstract: 1,037,614. Coated facia block. E.GREGSON. March 12,1965 [March 14,1964], No. 10907/64. Heading B2B. A facia block A comprises a light weight concrete body moulded with vertical bores alpha therethrough and having an epoxy resin coating b sprayed over the outer surface after moulding. The block may be formed of equal parts by weight of each of cement, sand and vermiculite, and two parts by weight of fused clay. Reinforcing rods or wires may be inserted vertically in the mould before pouring in the concrete mix.
Patent GB-981903-A (GB)
Title: Improvements in or relating to airships
IPC: B64B1/40
Filed: 1962-03-21
Abstract: 981,903. Airships. H. KAUFFMANN. March 21, 1962 [March 22, 1961], No. 10908/62. Heading B7W. A rigid or semi-rigid airship has a first gas cell receiving buoyant gas under the pressure of the surrounding atmosphere and a second gas cell receiving buoyant gas at a pressure slightly above atmospheric, and means to impel gas from one cell into the other. The airship has a central duct housing a propeller for impelling air through the duct for drive, control surfaces in the rear end of the duct, Figs. 5-7, not shown, affording control of the airship. Double-walled gas cells b, c and air cells d are provided so that by allowing gas to flow from cells b, c via valves e or pumping it back by pump f and allowing air to correspondingly flow out of or into cell a via valve g or pump h, the buoyancy of the airship can be adjusted. The .space between double-walled cells b, c traps gas diffusing through the inner wall, such gas being pumped back by pump i. The outer skin of the airship is sheet metal or other flexible material with the longitudinal ribs of the envelope frame outside the transverse ribs; stiffening ribs extend from the duct to the outer frame, Figs. 10, 12, not shown. Additional outboard propellers and control surfaces may be provided, Figs. 8, 9, 11, not shown.
Patent GB-417311-A (GB)
Title: Improvements in and relating to electromagnetic devices
IPC: H01H51/22
Filed: 1934-04-11
Abstract: 417,311. Electromagnets. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. April 11, 1934, No. 10930. Convention date, April 11, 1933. [Class 35.] A polarized relay having a magnetic circuit for a variable or working flux and two parallel magnetic circuits for a polarizing flux, the two parallel magnetic circuits being arranged so that their like poles of one polarity are located opposite one another at the working air gap in which an armature is arranged to oscillate whilst the poles of the other polarity are combined in the said armature, is characterized by the polarizing flux in the two parallel magnetic circuits being produced by a magnet common to both the said circuits and extending substantially independently of the magnetic circuit for the variable or working flux. As shown the permanent polarizing magnet 3 has two lower polar projections 6 arranged adjacent the lower end of the pivoted armature 5 and two upper polar extensions extending downwardly to terminate at opposite sides of the upper end of the armature. Fixed magnetic extension pieces 10 are secured to the fixed contact members 8 to complete the two parallel flux paths which are indicated by the dotted lines. The operating flux is produced by a varying current in an electromagnet 1 on a core 2 this magnetic circuit being thus substantially independent of the two magnetic circuits for the polarizing flux. The contact structure is surrounded by an exhausted container 9. In a modification (Figs. 2 and 3, not shown) the upper pole pieces are arranged to be adjustable.
Patent GB-1429192-A (GB)
Title: Cameras
IPC: G03B7/00
Filed: 1973-03-07
Abstract: 1429192 Focus and aperture adjustments BERKEY PHOTO Inc 7 March 1973 11 Oct 1972] 10979/73 Heading G2A A camera has adjustable focusing means and an adjustable iris diaphragm, which can be interconnected, and further means which can set the diaphragm in a predetermined position which precludes or allows this inter-connection. As shown, the iris diaphragm 40 comprises a lower blade 84 and an upper blade 86, mounted pivotally on respective pins 88 and 90 secured in a base-plate 54. The blades have respective tail sections 92 and 96 with slots 94, 98 therein. The slots lie across each other, and are both engaged by a pin 100 on a lever 102. Lever 102 pivots on a pin 104 secured to plate 54, so that transverse movement of pin 100 will effect opening and shutting of the diaphragm blades in a scissor-like movement. Each blade has a smal notch 108 on its inner edge, so that when the blades are in their "closed" position, there remains in fact a small and accurately dimensioned aperture, as seen in Fig. 9. A linkage system 38 connects the axial focusing movement with the pivotal movement of lever 102 controlling the diaphragm blades. A film speed selector 34, operated by a button 36, comprises a slide member 240 confined between the top flange 48c of the camera wall on which plate 54 is mounted and the top .edge of an arm 58 of plate 54. A toggle spring enables this slide to be positively positioned at either extreme of its sliding movement, one of which corresponds to a film of moderate speed, such as a colour film, and the other corresponding to a film having a speed many times faster. In one case the diaphragm is moved to a fully open position, and in the other to a closed position in which it will be maintained regardless of movement of the other control elements. The exposure control mechanism 30 comprises a slide vane member 150 having an elongated tapered opening 153 and a second vane 156 having another opening (162) Fig. 4 (not shown). As the vanes move relative to each other, the openings overlap to varying degrees, so providing an opening of varying area which regulates the amount of light passing to the photo-cell of an electronic shutter mechanism. Movement of member 150 is controlled by a knob (32,) Fig. 3 (not shown) which is also mechanically linked to the diaphragm blades 84, 86. A flash control unit comprises a slide element 210 which can be moved vertically by a button from a lower position, in which a flash circuit is completed, to an upper position, in which the flash circuit is open. In the upper position the diaphragm is fully open, irrespective of the position of the focus setting mechanism. In the lower position the diaphragm aperture may be adjusted in accordance with the other control elements.