baber/WOPTO huggingface dataset:
Patent GB-720942-A (GB)
Title: Improvements in and relating to gyratory crushers
IPC: B02C2/06
Filed: 1953-04-29
Abstract: 720,942. Gyratory crushers. MORGARDSHAMMARS MEKANISKA VERKSTADS AKTIEBOLAG. April 29, 1953 [July 1, 1952], No. 11893/53. Class 59. The upper end of the crusher spindle 7 of a gyratory crusher has secured thereto a hemispherical bearing member 16 which is carried on a correspondingly-shaped bearing surface 17 of a plunger. 8 which is pressed against an adjustable stop-member 21 by means of fluid under pressure supplied to a cylinder 19 through a conduit 20 controlled by a valve, the arrangement being such that when the crushing force exceeds a certain value, fluid is pressed from the cylinder 19 through the conduit 20 so that the spindle and the crushing head 8 secured thereto move downwardly to relieve the crushing force. The stop-member 21 may be adjustable hydraulically. In a modification, Fig. 2 (not shown), the plunger is pressed against the stopmember by adjustable spring means.
Patent GB-455012-A (GB)
Title: Improvements in and relating to speedometers and revolution meters
IPC: G01P1/08
Filed: 1935-04-18
Abstract: 455,012. Indicating dials and scales. POHLE, K., 86, Mauerstrasse, Berlin. - (Assignee of Original-Bruhn Taxameter-und Kontrollapparate Ges. ; 86, Mauerstrasse, Berlin) April 18, 1935, No. 12021. Convention date, April 19, 1934. [Class 106 (iv)] In a speedometer or revolution meter wherein the pointer is rotatable through several revolutions, a disc 2 is automatically moved to display at dial apertures 1a groups of different scale indications on successive revolutions of the pointer. The pointer 3, while passing behind a stationary masking sector 14, engages and moves a second pointer 4 against the action of a return spring. The pointer 4 engages a pin 8 on a bell-crank lever 7 which carries with it a slotted lever 9 engaging a pin 10 on the disc 2, a spring 11 connecting the pin 10 with the outer end of the lever 9, so that the disc 2 is rotated by the pointer 4 through an arc limited by a pin 13 engaging an aperture 12. On the return movement the pointer 4 knocks against a pin 8a on the lever 7 and restores the disc 2 to its original position.
Patent GB-353383-A (GB)
Title: Improvements connected with means for the withdrawing of props in mines and the like
IPC: E21D15/18
Filed: 1930-07-15
Abstract: 353,383. Pit props. BEECH, W. A., Brereton Hall Cottage, and STALEY, J. J., Brereton Hall, both in Brereton, near Rugeley, Staffordshire. July 15, 1930, No. 12137/31. Divided on 353,676. [Class 20 (ii).] A telescopic pit-prop of the type in which one tubular member with stopped end rests upon sand or debris contained within the other tubular member, has a collar S fixed to the upper tubular member 3 and provided with apertures 9 or projections adapted to engage a hook on a rope 11 partially wrapped around the member, whereby this member is rotated to effect release of the prop. The debris within the lower tubular member may be expelled through apertures provided in it which are normally closed. Specification 353,676 is referred to.
Patent GB-1463934-A (GB)
Title: Plasma gun
IPC: H05H1/34
Filed: 1975-03-24
Abstract: 1463934 Spraying fusible materials; heating work piece; coating SEALECTRO CORP 24 March 1975 12139/75 Headings B2E, B2F and B2L  A plasma spray gun in which a plasma jet 14 produced by an electric arc inside the gun housing 10 is ejected from a nozzle 12 for depositing powdered material e.g. platsics, paint, and metal, onto a workpiece, further comprises a concave reflector 20 mounted on the gun adjacent the nozzle for reflecting infra-red rays generated in the plasma jet, which is disposed at the focus of the reflectors, towards the workpiece, and one or more adjustable powder supply conduits 13 secured externally to the gun with the end of said conduit adjacent the plasma jet for directing powder thereto. The reflector may have a part elliptical or a parabolic cross-section or it may be semi-cylindrical or of a truncated ellipsoidal configuration. The reflector may have an elongated slot (25) Fig. 2, (not shown), in which the gun is slidably mounted. The powder supply conduit is fastened to the gun by a manually operable clamp 17 and its angular position and longitudinal position relative to the jet may be adjusted. The workpiece may comprise a glass bottle which is coated with polyethylene by the gun. Alternatively, the gun may spray epoxy.
Patent GB-569628-A (GB)
Title: Improvements in or relating to beams comprising precast units
IPC: E04C3/22
Filed: 1943-07-26
Abstract: 569,628. Blocks for floor beams. GREEN, D. H., and TRUSSED CONCRETE STEEL CO., Ltd. July 26, 1943, No. 12150. [Class 20 (iv)] [Also in Group V] A blockwork beam suitable for floors and roofs and formed of blocks 10 grooved at the sides to receive rods 16 and then filled in with mortar comprises blooks having the side grooves 12 running inwards in a downward direction and having the upper face of the inner end undercut at 15, the major part of the section of the groove lying below the top surface of the flange 11. A die 19 with a renewable groove-forming part 20 for the extrusion of the blocks is shown in Fig. 3.
Patent GB-661062-A (GB)
Title: Improvements in or relating to loose-leaf binders
IPC: B42F13/20
Filed: 1949-05-06
Abstract: 661,062. Loose-leaf binders. LE TEXIER R. A., DESCHAMPS, G. P. H., and DESCHAMPS, P. F. May 6, 1949 [Oct. 5, 1948], No. 12155/49. Class 146 (i). A loose-leaf binding device comprises a comb having teeth of inverted U-shape with an outwardly directed hook shaped end c and the straight portions t of which are secured in bearing surfaces 2 on one edge of a fitting F<SP>1</SP> so as to be able to slide longitudinally and to rock or pivot laterally, the fitting F<SP>1</SP> having locking means on the other edge 3 to engage the hooks c to prevent rocking of the comb and the bearing surfaces 2 including slots or openings 5 co-operating with the locking means to urge the comb in the closed position. As shown, the edges 2, 3 of the fitting F<SP>1</SP> are formed by inverted channels, the channel 2 having a bentunder tongue 6 to form an opening opposite a slot 8 in the channel 3 to allow rocking, the ends c being locked in slots 7 when the teeth are slid along the slots 5. One or both of the edges 2, 3 may be formed as rolled over edges, the slots 5 and opposed openings 6 and 8 being provided in each case, and either locking slots 7 or the rolled over edge 3 forming the locking means. As shown in Fig. 2, the comb teeth may be formed from round wire flattened as at b<SP>1</SP>, b<SP>2</SP> to have parallel flat sides, to assist passing through perforations P of a loose leaf.
Patent GB-927567-A (GB)
Title: A spring roller
IPC: E06B9/60
Filed: 1961-04-05
Abstract: 927,567. Spring rollers. HUNTER DOUGLAS INTERNATIONAL (QUEBEC) Ltd. April 5, 1961 [April 6, 1960], No. 12261/61. Class 20 (3). A spring roller, particularly for an insect screen, comprises outer and inner tubes 12, 13 with a helical spring 14 disposed therebetween having one end 14B off-set to the axis and engaged in slots 16 in the inner tube 13 and the other end 14D engaged in a slot 21 in a bearing member 17 secured within the tube 12 by ribs 18 fitting in slots 19 on the outer tube 12, and rotatable on a stub 22 projecting from a cap 23, a thrust-washer 29 lying between member 17 and the end of tube 13 and having diametrically opposite inwardly-extending ribs 30 engaging complementary grooves in stub 22 and slots 32 in tube 13. The other end 12A of tube 12 is rotatably carried on a stub 24 projecting from an end-plate 25 and having a fluted bearing surface, this end of the inner tube being spaced from the outer tube by a spacer 27 having a neck 28 to support the inner tube. The spring 14 is held in tension by a removable pin 36 engaging in registered holes 37, 38 in end-plate 23 and member 17. The ribs 30 may be replaced by a E-section locking plate with diametrically-aligned ends engaging in slots in the inner tube 13 and stub 22.
Patent GB-109779-A (GB)
Title: Improvements in Lubricators for Vehicle Wheels.
Inventor: SCHELLINGER LEE LIVINGSTON
IPC: B60B35/00
Filed: 1917-08-27
Abstract: 109,779. Schellinger, L. L. Aug 27, 1917. Force-feed lubricators.-In a lubricator for vehicle wheels comprising a vessel 11 containing lubricant screwing on to a piston 13 on a stem 10 fixed radially in the wheel hub, the base 17 of the vessel 11 is of concave conical form with a sharp edge 19 which scrapes mud, ice, or other deposit from the stem 10 when the vessel is screwed down to feed the lubricant.
Patent GB-567125-A (GB)
Title: Improvements in partitions for rooms and buildings
IPC: E04B2/78
Filed: 1943-07-29
Abstract: 567,125. Partitions. HARRIS & SHELDON, Ltd., SANKEY & SONS, Ltd., J., and BUTLER, H. G. July 29, 1943, No. 12332. [Class 20 (iv)] A partition for a room or building comprises panels 1 of plasterboard, mill-board, plywood, expanded metal, &c. directly bolted to the opposed flanges of angular or channelled vertical units forming posts 2, 3, 4, without filling pieces, Fig. 3. Panels lying in one plane are held by flanges 5 of U-sectioned halfposts 3a and at a wall or where panels meet at right angles quarter-posts 2a are used, Figs. 3 and 9. Jambs for a door are secured between flanges 18 as shown in Fig. 3. The posts are secured to the ceiling by flanged inserts 23 bolted to a cornice 20 and welded &c. to the posts, Fig. 5, and to the floor by gusset-plates 9 bent from sheet metal with overlapped edges 9b. Reinforcing channel members 8 having tubular or beaded edges may be bolted in pairs to the panels at the floor and ceiling and intermediately, the securing nuts being non-rotatably housed in the channels. The edges of the panel-engaging flanges may be folded inwardly.
Patent GB-170876-A (GB)
Title: Improvements in tire retreading vulcanising moulds
IPC: B29C35/00
Filed: 1920-05-04
Abstract: 170,876. Reid, M. May 4, 1920. Vulcanizing-moulds, pressing-devices for.-In a steam-jacketed vulcanizing mould for re-treading tyres, the steam space 3 is divided into compartments by partitions 6, the central compartment being in direct communication with a water chamber 4, and through bye-passes 7 with the end compartments. The mould surface is formed with a standard tread pattern, but detachable liners 13 may be inserted and clamped in pcsition by clamps 15, 16 which pass over end extensions 14 of the mould and are pressed against the ends of the liner segments by nuts 17 on bolts on the jacket 3. Distance pieces 24 between the segments 13 facilitate matching of the pattern of the tread. Tyres are held in the mould by clamps 18, Fig. 2, having a slot engaging a bolt 20 on a lug 19 on one side, and a hook 23 engaging a projection on the other side of the mould. On :releasing the screw 22, the slot moves down the bolt 20 and disengages the hook 23.
Patent GB-1485195-A (GB)
Title: Thermal transfer unit
IPC: F25B39/02
Filed: 1976-03-22
Abstract: 1485195 Refrigeration D W RICHARDSON and C HUSKER 22 March 1976 [25 March 1975] 12359/75 Heading F4H An evaporator, e.g. an outdoor evaporator of a heat pump, is adapted to operate with a layer of ice thereon. Alternative evaporators formed of pipes, secured to plates and provided with defrost elements are illustrated in the drawings (not shown).
Patent GB-915450-A (GB)
Title: Improvements in and relating to processes for producing fertilizers
Inventor: BRADFORD BERNARD WILLIAM
IPC: C05C9/00
Filed: 1959-04-13
Abstract: Smooth granules of fertilizer are formed by pressing granules suspended in a gas stream through a hot yore and then allowing them to cool.  During heating, the granules may be exposed to a reducing or oxidizing atmosphere or to formaldehyde.  The granules may be coated with a finely divided material which is introduced with the granules or blown into the hot zone.  Alternatively, the granules from the hot zone may be fed to a bed of calcium carbonate, china clay or plaster of Paris.  The fertilizer may be urea or comprise (by weight) 10% of ammonium nitrate, 70% of ammonium sulphate and 20% of potassium chloride.ALSO:Smooth granules of fertilizer are formed by passing granules suspended in a gas stream through a hot zone and then allowing them to cool.  During heating, the granules may be exposed to a reducing or oxidizing atmosphere or to formaldehyde. The granules may be coated with a finely divided material which is introduced with the granules or blown into the hot gas. Alternatively, the granules from the hot zone may be fed to a bed of calcium carbonate, china clay or plaster of Paris.
Patent GB-204735-A (GB)
Title: Improvements in ratchet drilling machines
IPC: B23B45/12
Filed: 1922-12-16
Abstract: 204,735. White, T. Dec. 16, 1922. Ratchet braces. - A double-acting ratchet brace makes use of two ratchet wheels and two gear trains which are operated on alternate strokes of a hand-lever and are mounted on two parallel spaced shafts, one of which constitutes the drill spindle and the other constitutes a shank for the reception of an operating handle, the gearing being completely enclosed in a casing. The gearing comprises two lower spur wheels 11, 21, keyed to the drill-spindle 2 and loosely mounted on a stud 20 respectively, and two upper spur wheels 14, 23, engaging the lower wheels by means of roller ratchets of the same sense. The wheels 14, 23 mesh together directly and the wheels 11, 21 are connected by an idle pinion 40. The wheel 23 is oscillated by a hand lever engaging a squared stem 24, the drive taking place through wheels 23, 14, 11 on one stroke and through wheels 21, 40, 11 on the other stroke. The gears are enclosed in a casing 1 which rests on a shoulder 6 formed on the drill-spindle and has a detachable lid 3. A ball valve 28 provides for lubrication when the brace is inverted. In a modification, the wheel 23 is replaced by teeth formed on the hand lever which is mounted directly on the ratchet of the wheel 21 and projects through a slot in the bore. A castellated boss 33 on the casing receives a slotted steady arm 31, Fig. 1, secured by a stud 30 and attached to a drillstand by a hook 36. For use as a single acting brace, the lever 27 may be removed and the casing and drill rotated by the arm 31.
Patent GB-129481-A (GB)
Title: Automatic Weighing Machine for Grain and the like.
Inventor: NUTE ALBERT EDWIN
IPC: G01G13/00
Filed: 1918-07-31
Abstract: 129,481. Nute, A. E. July 31, 1918. Automatic-feed weighers.-Relates to an automatic-feed weigher and comprises an angular lever for opening the feed gate after its release by cam mechanism, the angular lever being also used for compensating for the material in suspension at cut-off. The machine is also provided with a weight box embodying means for raising the weights clear of their supports and for moving the back, front, and side plates of the box clear of the weights to allow the balance of the machine to be tested. On the rise of the weighing-receptacle D after a weighing operation, the closure of the discharge gate removes a locking-pawl L from engagement with the feed-gate mechanism, and a roller N on the weighing receptacle rocks the angular lever P which is made in two portions connected by a spring l<1>. The upper portion engages and pushes back a lever H secured to the pivot G of the feed gate E, which is thus raised into the fully-open position. If the discharge gate has not closed before the roller N engages the lever P, the spring l<1> is compressed and the opening of the feed gate is delayed until the locking-pawl L is released. During the feed of material, the depression of the weighing-receptacle is aided by the weight of the feed gate E pressing upon the lever P until the feed gate is arrested by a picker J (rigid with the feed gate) contacting with a trip lever O. The dribble feed then continues until an extension of the pivot of the roller N strikes the trip lever 0 away from the picker and allows the feed gate to close. By adjusting a sliding weight 16 upon the lever P, the suspended material at cut off may be compensated for. The discharge gate is retained in its closed position by the engagement of a lever 3 with the end of a lever I pivoted to the weighing-receptacle and connected to toggle links S, T, and is opened during the descent of the weighing- receptacle by a tripper V on the frame holding up the lever 3. During the rise of the weighing receptacle and the closure of the discharge gate the end of the lever I lifts the lever 2, rod Q, and locking-pawl L to free the feed gate. In a modification, the lever I is replaced by a cam which operates the rod Q, and the toggle S, T, is broken by the engagement of an arm on the cam spindle with the tripper V. The balancing-weights rest on flanges at the bottom of the weights box C so that the weights may be lifted clear by a girder Z raised and lowered by a hand-wheel Y. The front and back of the weights box are mounted on hinges 9, 9', 10, 10<1>, and may be swung clear of the weights by means of a hand-lever 13. Side plates 15, Fig. 5, are moved clear of the weights by the same operation.
Patent GB-140265-A (GB)
Title: Improvements in cylinder blocks for internal combustion engines
IPC: F02F7/00
Filed: 1919-05-17
Abstract: 140,265. Bentley Motors, Ltd., and Bentley, W. O. May 17, 1919. Cylinders, construction of, and cooling. - A group of cylinders forming one rigid casting are joined together at the base B, at the bottom of the water jacket C, and at the top. A skeleton frame F forms the edges and corners of the water jacket, which is' closed by flat aluminium plates. Such a plate also closes the common admissionvalve chest L of all the cylinders. The guides of the two admission and two exhaust valves of each cylinder are shown at J, and the ignition plug sockets at K.
Patent GB-1088776-A (GB)
Title: Semiconductor controlled rectifier having a shorted emitter
IPC: H01L29/423
Filed: 1965-03-24
Abstract: 1,088,776. Semi-conductor devices. WESTINGHOUSE ELECTRIC CORPORATION. March 24, 1965 [April 1, 1964], No. 12484/65. Heading H1K. In a PNPN semi-conductor controlled rectifier an emitter-base junction emerges at a major face of the wafer and is shorted by a plurality of spaced fused metal elements 40 to 43 which are substantially enclosed by the emitter electrode 22 and are also in non-rectifying contact with the adjacent base region to which a gate electrode 36 is applied. The various electrodes and shorting elements are of suitably-doped gold foil alloyed to the semi-conductor wafer. Several arrangements of the shorting elements are described, including one (Fig. 5, not shown) in which they are located in openings lying wholly within the emitter electrode.
Patent GB-238315-A (GB)
Title: Improvements in and relating to boiler and other furnaces
IPC: F23M5/08
Filed: 1924-05-21
Abstract: 238,315. Robertson, T. E., (Power Specialty Co.). May 21, 1924. Walls; linings.-In a steam boiler or other furnace fitted with a mechanical stoker 1 and having a fall 2 for ashes, the wall 7 adjacent the fall 2 is lined with vertical fluid-cooled tubes 4 encased in cast-iron blocks 5 and arranged to form a smooth metallic surface. Bricks 6 of asbestos composition are interposed between the tubes 4 and the brick work 7. As shown, the tubes 4 are connected by horizontal tubes 8 to external headers 9, 10 connected in the boiler circulation systems, the former communicating by pipes 11 with headers 12 serving metal-cased tubes 13 incorporated ir the side walls of the combustion chamber, anc the latter with headers 14 connected by tubes 16 with the boiler drum 15. Superheater elements 21, closely arranged so as to form a smooth metallic surface, are provided in the rear furnace wall. To allow expansion and contraction of the tubes 4 there is provided, around the upper and lower ends, a metal elbow casing 23, Fig. 6 packed with refractory material 24, the hori. zontal tubes 8 passing through a cellular structure 25 in the furnace wall and being packed round with powdered asbestos or the like. Certain of the casing blocks 5 are formed with lugs 26 for attachment to stiffening members 27 between which and the blocks 5 is arranged a layer 28 of insulating material. In the modification shown in Fig. 8 the superheating elements 21 are omitted and the tubes 4 extended upwardly, the extensions being left bare. Feedwater, steam, or, when the invention is applied to an oil still, oil may be circulated through the tubes 4.
Patent GB-673848-A (GB)
Title: Improvements in pyrophoric lighters
IPC: F23Q2/06
Filed: 1949-05-11
Abstract: 673,848. Pyrophoric lighters. LYTUP (UTILITY PRODUCTS), Ltd., and CROSS, B. W. May 10, 1950 [May 11, 1949], No. 12608/49. Class 75(iii) A frictional lighter having a tubular shroud C round the wick and flint and with a slidable cap B fitted over the shroud has the shrould provided with opposite openings L by which the flame can be drawn on to a smokers pipe and the cap has indentations J engaging slots K in the shroud whereby it can slide thereover but only to an upper limit position. The cap B may be formed with a hood M to cover the wheelF when the cap is closed. The outer end of the shroud C may be closed by a wall N.
Patent GB-424926-A (GB)
Title: Improvements in grinding and polishing machines
IPC: B24B17/02
Filed: 1934-04-26
Abstract: 424,926. Grinding and polishing surfaces of revolution. KELM, A. F., 24, Neubabelsberg F³rstenweg, Berlin. April 26, 1934, No. 12645. [Class 60] To obtain uniform machining in a machine for grinding or polishing articles having the form of surfaces of revolution of constant or varying diameter, the article 7 is traversed axially in contact with the wheel 18 by a rocking arm 14 actuated by a cam 6, and the cam is so shaped that for cylindrical articles a speed of traverse which is practically constant at all points of the stroke may be obtained ; when, however, articles of varying diameter such as that shown are to be ground, the rocking arm may be adjusted with the centre of its arc of oscillation to one side of the vertical so that the speed of traverse, which is dependent upon the horizontal component of the arcuate movement, varies at different points of the stroke, and may be made to vary substantially inversely as the diameter of the article 7 at each point in order to obtain the desired uniformity in time of machining. In the construction shown, the article 7 is reciprocated by a connecting-rod 15, the pivot 15a of which is adjustably mounted in the arm 14 in order that the stroke may be varied. The arm 14 is oscillated through gears 12, 11 from a shaft 10 which is rocked by an arm 9 carrying a follower 8 which engages the cam groove 6 formed in the drum 5. The pivot 17a of the arm 14 and gear 12 is adjustable in a slot 17 in order that the position of the arc of oscillation of the arm 14 may be varied for the purpose stated above. Alternatively, the gears 11, 12 may be capable of being re-engaged in different relative positions. Articles of varying diameter are maintained in contact with the wheel by a follower which engages a guide surface 16. A stop mechanism is provided comprising a ratchet wheel 21 rotated step-by-step by a spring pawl 19 carried by the rocking arm 9, a lug 22 on the wheel engaging at each revolution mechanism, (not shown) which swings the apparatus to remove the article from contact with the wheel.