baber/WOPTO huggingface dataset:
Patent GB-968942-A (GB)
Title: Improvements in belt conveyors
Inventor: DUNCAN ANGUS WELLESLEY
IPC: B65G21/14
Filed: 1962-07-21
Abstract: 968,942. Endless belt conveyers. MINING ENGINEERING CO. Ltd. July 22, 1963 [July 21, 1962], No. 28152/62. Heading B8A. In an endless belt conveyer in which the load carrying run 10 of the belt is supported by troughed idlers 11 suspended between parallel rigid square cross - sectional longitudinal stringers 12, the latter are formed in relatively short sections which are articulated at their ends by vertical pins 17 mounted in channel sections 16 welded to the upper ends of supporting frames. Each frame comprises two transversely spaced pillars 13, Fig. 3 (not shown), welded at their lower ends to a transverse base-plate 14 having upwardly curved ends 15. In operation the conveyer can be moved transversely in a " snaking " motion due to the articulated structure.
Patent GB-630120-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D7/01
Filed: 1946-10-14
Abstract: The Specification describes the same slicing machine as that described in Specification 630,084 but the claims are directed to the feature whereby an extension of the gauge plate forms a knife guard. Specifications 630,118, 630,119 and 630,121 also are referred to.
Patent GB-248290-A (GB)
Title: Improvements in the construction of metal parts of apparatus such as mercury arc rectifiers and the like
IPC: H01J1/00
Filed: 1925-11-10
Abstract: 248,290. Weintraub, E. Nov. 10, 1925. Vacuum tubes; lowpressure metallicvapour apparatus. - Evolution of gases from an electrode, wall, or other metal part of a mercuryvapour rectifier, thermionic valve, condensation pump, or like apparatus into the vacuum space is avoided by constructing the said part as a hollow refractory shell filled with a more fusible metal such as lead, tin, aluminium, magnesium, or an alloy thereof, which has been freed from gas by melting in a vacuum. An anode for a mercuryvapour rectifier may consist of a steel shell B attached to a stem and provided with a filling tube D fitted with a glass sealing tube E. The glass tube may alternatively be fitted in the upper end of the stem, when this is made hollow. The anode is filled with molten gas-free metal, preferably such as to be molten at the temperature of operation of the anode. The eutectic alloy of aluminium and magnesium is particularly suitable. An anode of a high-power thermionic valve may consist of a cylinder F, Fig. 3, of thin mildsteel or nickel foil, united at its upper edge with a thicker outer cylinder G, the intervening space being filled with the gas-free metal. The cylinders are sealed to the glass bulb J. The walls of a vapour rectifier or condensation pump may be similarly constituted.
Patent GB-165005-A (GB)
Title: Improved means for introducing gaseous fuel into the combustion chambers of continuous tunnel kilns
IPC: F27B9/36
Filed: 1920-10-06
Abstract: 165,005. Metcalfe, R. C. Oct. 6, 1920. Liquid and geous fuel furnaces and kilns.-Consists in improved means for introducing gaseous fuel and air into the combustion chambers of a tunnel kiln, and for decarbonizing each fuel nozzle with a stream of decarbonizing fluid, such as steam or air. The combustion chambers are constructed, in a known manner, with channelled tiles b, ba which facilitate the circulation, by convection, of the kiln atmosphere. A portion of a combustion chamber, shown in cross-section in Fig. 1 and in sectional elevation and sectional plan in Figs. 2 and 3 respectively, is arranged with a refractory 'block C in its floor, the block having a large central aperture C<1> which is large enough to permit of expansion due to temperature changes and small side apertures C<2> which register with the channels in the wall tiles. The gas nozzle comprises fireclay sections D, F and projects through the aperture C<1> of the block C, the nozzle receiving a regulable supply of gas from the duct A<2>. The section F directs the gas forwardly through the opening F<1>, and a decarbonizing stream of relatively cool air is supplied under pressure by the duct A<3> to the concave surface of the section F and prevents carbon from depositing on that surface. The combustion air is admitted from the kiln chamber through porte b<5> in the channelled tiles ba and is directed forwardly by a hood G, and adjustable channel-like dampers are arranged in the channelled tiles to regulate the quantity of air admitted. A number of nozzles are arranged along the combustion chambers. In a modification, the gas is admitted through a side wall by means of a steam or air jacketed forwardlydirected elbow pipe, decarbonizing air being supplied to the concave surface through holes in the inner jacket. In another modification, the gas is supplied through a side wall by an elbow pipe and the decarbonizing fluid is supplied by an internally-arranged pipe, and in both modifications the combustion air is supplied through a port in the end wall.
Patent GB-1118975-A (GB)
Title: Reinforced sheeting material based on chlorinated olefin polymers
Inventor: AMMONS RICHARD BRUCE
IPC: B32B27/00
Filed: 1966-06-24
Abstract: 1,118,975. Laminates. DOW CHEMICAL CO. 24 June, 1966 [25 June, 1965 (2)], No. 28413/66. Heading B5N. A flexible dimensionally stable composite sheet comprises a chlorinated ethylene polymer sheet prepared by the suspension chlorination of a linear ethylene polymer, which may comprise 0 to 10% of at least one ethylenically, unsaturated co-monomer, this polymer containing 25 to 50% by weight of chemically combined chlorine, and a woven reinforcing mat of polyester or nylon, fibres laminated co-extensively with at least one major surface of the thermoplastic sheet. The chlorinated polymer has a crystallinity of 15 to 28% when containing 25 wt. per cent of chlorine and less than 10% when containing 34 wt. per cent of chlorine. The chlorinated polymer sheet has a thickness of 0À005 to 0À25 inch, a tensile strength of at least 1100 1b./sq. inch, an elongation of 350 to 900% and a 100% modulus of 150 to 1500 1b./sq. inch.
Patent GB-1174628-A (GB)
Title: Improvements in or relating to Reversible Bearings of Spiral or Helical Groove Type
IPC: F16C33/10
Filed: 1967-06-20
Abstract: 1,174,628. Bearings. SVENSKA KULLAGERFABRIKEN A.B. 20 June, 1967 [21 June, 1966], No. 28490/67. Heading F2A. A hydrodynamic fluid bearing has two relatively rotatable load-carrying members with a member therebetween, the intermediate member having co-acting surfaces which conform in shape to the bearing "surfaces" of the load-carrying members; and has two sets of spiral grooves formed in the intermediate member and/or the load-carrying members, one set of grooves being effective for one direction of rotation and the other set being effective for the other direction of rotation. In an embodiment, a bearing has an inner race 6, an outer race 3, an intermediate member 1 and is mounted in a housing 4. The "bearing" surfaces of the races are conical-shaped and the outer and inner conical-shaped co-acting surfaces of the intermediate member 1 are provided with shallow spiral-shaped grooves 2 and 9 respectively. A space 8 is formed by means of the intermediate member 1, the inner race 6 and a shaft 7; and a space 5 is formed by means of the intermediate member 1, the outer race 3 and the housing 4. When the shaft rotates in one direction, the grooves 9 pressurize the space 8 and the intermediate member 1 is stationary. Upon rotation of the shaft in the opposite direction, the pressure in the space 5 is increased by the grooves 2 and the intermediate member 1 rotates with the inner race 6. In other embodiments the intermediate member is a flat disc, is a spherical body, is provided with a cylindrical bore at its smaller end, is provided with a part-spherical shaped co-acting surface, is made of synthetic plastics material, is provided with grooved and plain zones in the co-acting surfaces, is provided with holes which may connect with annular grooves, is provided with centrally-located recesses, is provided with a centrally-located bore, is provided with facets at its periphery and is resiliently urged in an axial direction.
Patent GB-972361-A (GB)
Title: Abrasion-resistant linings for flexible pipes
Inventor: WHITWORTH GUY JOSEPH
IPC: F16L57/06
Filed: 1962-07-25
Abstract: 972,361. Flexible pipes; pipe couplings. BRITISH OXYGEN CO. Ltd. July 16, 1963 [July 25, 1962], No. 28532/62. Headings F2G and F2P. A flexible pipe 10 is provided with an abrasion-resistant lining comprising a plurality of tubular sections 11 of refractory material, e.g. ceramics, arranged with a male member on one section rockably interfitting with a female member on the adjacent member, wherein the male and female members are plain or curved frusto conical ends of the sections. The sections are surrounded by a spring 14 having between one and two convolutions per section. The pipe may be rubber or corrugated metal. One end of the rubber pipe may be flanged, 15, to aid connection to a lance and may receive a flanged sleeve 16 the inner end of which is frusto-conical in shape to receive the end section of the lining. The other end may be flanged 22 and also receive a flanged sleeve 24, one end of which supports the spring 14 and receives the end lining section and is arranged to slide on a liner-retaining tube 27, one end of which supports the end lining section and the other end of which, 29, abuts a step in the inner wall of an outer sleeve 31 surrounding the sleeve 24. The outer end of the sleeve 31 has a flange 32 and the inner end has an enlarged bore receiving a sealing gland 35 compressed by a further sleeve 38 connected by a bolt 41 to a flange 39 of the outer sleeve 31. An extension of the bolt passes through the flanges 22, 23 of the tube 10 and sleeve 24, respectively and is spring-loaded to tension the tube but not the lining. The corrugated metal sleeve is welded or brazed at one end to a plate carrying a supporting flange (Fig. 2, not shown) and at the other end is welded or brazed to a flanged sliding sleeve 24 also carrying a supporting flange 58. The sleeve 24 is spring-loaded to slide on a liner 27, the sealing arrangement 35, 38, 39, 41 being as described above. In this embodiment the sleeve 24 does not enter the end of the flexible pipe 10.
Patent GB-1279260-A (GB)
Title: Planar electroluminescent character display
Inventor: MACINTYRE ALFRED J
IPC: H05B33/12
Filed: 1969-06-05
Abstract: 1279260 Electroluminescence SANDERS ASSOCIATES Inc 5 June 1960 28602/69 Heading C4S An electroluminescent display device comprises an insulating substrate 12, at least two character electrodes 13 disposed on one side, each constituted by one or more segments arranged in a common plane each segment associated with one character electrode only, at least two electrical circuit paths (e.g. 16) carried by the substrate only one corresponding to each character electrode and each circuit path being in one or more planes parallel to the common plane and an electrical connection within the substrate between each segment of a character electrode and its respective electrical circuit path, a transparent electrode 23, and electroluminescent layer 22. Dielectric 21 may be barium titanate with resin binder, phosphor 22 Cu activated ZnO with ZnS, electrode 23 tin oxide iridized for -example on a fibrous 'glass sheet, and cover 25 of epoxy. Each connection between segments and respective character electrodes may be formed from the same copper layer, and the character electrodes by a printed circuit process as in Specification 1,279,259 and as in Specification 1,167,771. The character electrodes may be letters, numbers-or-symbols, may overlap as in Figs. 1 and 6 (not shown), and a plurality of these units may form a display. Fig. 4 (not shown) includes circuit path 16, lands 17 to the segments of character electrode "8" in Fig. 3 (not shown). The display may include characters as in Fig. 7 (not shown), in which the multi-bar "G" is a prior art configuration. Application to coded information displays on a pilot's control panel is instanced.
Patent GB-1388446-A (GB)
Title: End closure for a can having a scoreline defined removable panel
Filed: 1972-06-19
Abstract: 1388446 Easy-open can ends AMERICAN CAN CO 19 June 1972 28652/72 Heading B8D A countersink wall 18 of a can end circumscribing a score line-defined panel 12 provided with a pull tab 16, has a stepped configuration constituted by upper and lower wall portions 36 and 38 joined by a shoulder 34 over its peripheral extent except for minor part B in diametrically opposed relationship to the tab. The part B of the wall is non-stepped and formed by a lower part 40 merging smoothly into the upper part 36, Fig. 3. Alternatively, the lower part 40 may be provided with stiffening corrugations, Figs. 6 and 7 (not shown). The non-stepped configuration of the part B is said to reduce the tendency of a lower countersink wall to distort upwardly at the region of final separation of the panel 12 from the remainder of the can end when the panel is torn away, which distortion is said to occur when the countersunk wall has a stepped configuration 1 throughout its complete peripheral extent.
Patent GB-263105-A (GB)
IPC: F02B3/00
Filed: 1926-11-13
Abstract: 263,105. Sun Shipbuilding & Dry Dock Co., (Assignees of Setz, B. E., administratrix of Setz, H. R.). Dec. 15, 1925, [Convention date]. Cylinders receiving liquid fuel.-In a Diesel engine with a main valve-controlled exhaust outlet f and an auxiliary terminal exhaust port g, air is supplied normally by a compressor i through the valve-controlled port h. The air enters during the end of the exhaust stroke while the main exhaust valve is open, during the suction stroke, and during the compression stroke until the auxiliary port g is closed by the piston; by this means exhaust is not drawn back into the cylinder on the suction stroke. An additional atmospheric air inlet c is provided for use if the compressor is not working.
Patent GB-1421029-A (GB)
Title: Clutch release mechanisms
IPC: F16D23/14
Filed: 1973-06-15
Abstract: 1421029 Clutches AUTOMOTIVE PRODUCTS Ltd 11 June 1974 [15 June 1973] 28694/73 Headings F2C and F2L An assembly of a diaphragm spring and a clutch release mechanism in a friction clutch comprises a sheet metal thrust ring 29 (Fig. 1) fixed for rotation with the spring 18, the thrust ring having a flange 32 against which a race 25 of a clutch release bearing 20 bears, the thrust ring 29 having a cylindrical portion 30 within which the race 25 is an interference fit. In the embodiment shown in Fig. 1 the thrust ring 29 is connected through an interference fit within a channel-section ring 34 to the spring 18, the channel-section ring 34 having a wire 36 each side of the spring fingers 19 of spring 18, retained between flanges 35, 37. A larger diameter clutch release bearing may be used by replacing thrust ring 29 with a thrust ring of similar shape to ring 48 of Fig. 5, without flange 49 (Fig. 2, not shown). In alternative embodiments the channel-section ring is absent and the thrust ring is connected to the diaphragm spring by two notched triangular-section rings 42, each of which has notches 44 to engage alternate spring fingers 19 so that adjacent fingers are axially displaced (each ring 42 engaging different fingers 19 in its notches 44). One example of this is illustrated in Fig. 5, other embodiments having a spring washer or circlip retaining the rings 42 on the cylindrical portion 30 of the thrust ring 29 of Fig. 1 (Figs. 3 and 4, not shown), or by tabs upturned from the thrust ring (Figs. 6 and 7, not shown). The release bearing may, as shown, be of sheet metal or it may not (Figs. 6 and 7) and the inner race of the bearing may be spigotted on an inner cylindrical part of a channel-section thrust ring (Fig. 6) rather than as shown. In the clutch the presser plate 15 slides axially on lugs 13 of a flange 12 of the flywheel 11 to engage the driven disc 17.
Patent GB-935737-A (GB)
Title: Improvements relating to the cladding of heat insulation
IPC: F16L59/12
Filed: 1958-09-08
Abstract: 935,737. Releasable fastenings. A. WRIGHT. Aug. 31, 1959 [Sept. 8, 1958], No. 28778/58. Class 44. [Also in Group XXXIII] Galvanized steel sheets 14, 15 (covering sections 12a, 12b of insulation on a ship's bulkhead 11, or on a wall of an engine- or boiler-room or a hull surface) are supported by brackets, also of sheet metal, held by nuts 23 on horizontal rows of studs 17 welded to the bulkhead 11 and extending between the insulation sections 12a, 12b. The brackets each have an inset portion 22 which compresses the horizontal margins of the insulation sections and a portion 18 with an upwardly-open recess receiving the bottom edge of a steel sheet 15 and a downwardly-open recess receiving the top edge of a steel sheet 14. Either edge may be the nearer to the insulation. There may be narrow brackets each on a single stud 17 or a single bracket embracing the whole length of the adjoining sheet edges. At the top and bottom of a bulkhead, Figs. 3, 4 (not shown), angle-sectioned strips of the metal cover the edge and face of a small insulation strip completing the covering, the horizontal edges of the vertical faces of the angle strips being located in recesses of brackets secured to studs near the top and bottom of the bulkhead 11. The top edge of the top metal sheet, Fig. 3, (not shown), may be bent over to hook into a recess of a topmost bracket to share the recess with an edge of the angle strips. Anglesectioned strips are also used at bulkhead corners, Figs. 5, 6 (not shown), with a row of studs 17 at each face of the corner and with corresponding brackets. The vertical edges of the metal covering sheets 14, 15 may be closed by elements of H-section or these edges may have perpendicular flanges held together by U-section clamping strips sunk into the insulation or projecting. The vertical edges of two insulation sections 12, Fig. 7, may contact an angle stiffener 91 and the edge of this be covered by an insulation strip 93 capped by a channel member 95 (of the sheet metal) which encloses perpendicular flanges 94 at the edges of the covering sheets 14 and is secured thereto by screws 96.
Patent GB-1181116-A (GB)
Title: Improvements in or relating to Reinforcements for Pipes or Other Hollow Cylindrical Concrete Structures
IPC: B28B21/66
Filed: 1967-06-22
Abstract: 1,181,116. Reinforced concrete pipes. BAUSTAHLGEWEBE G.m.b.H. 22 June, 1967 [29 June, 1966], No. 28862/67. Heading F2P. In a reinforced concrete pipe, or other concrete cylindrical structure, wherein the reinforcement consists of steel rods extending longitudinally of the cylinder casing and intersecting others which extend annularly of the casing, the longitudinal rods 1 are undulated in a direction radially of the cylindrical structure with the radial extent between the peaks of the undulations preferably approaching the thickness of the wall of the cylindrical structure and the annular rods 2 are disposed in, or on, the wave troughs of the longitudinal rods 1, preferably those located in the vicinity of the inner peripheral face of the cylindrical structure, where they intersect and are welded, or otherwise rigidly connected, to the longitudinal rods 1. The curvature of the inner troughs of the rods 1 is preferably greater than that of the outer troughs. The reinforcement can be preformed into one, or more, mats which is, or are, bent into cylindrical form, and additional straight rods may be located between the curved rods 1.
Patent GB-617053-A (GB)
Title: Improvements in and relating to quick pitch screw vice
IPC: B25B1/08
Filed: 1946-09-27
Abstract: 617,053. Vices. F.I.S.P.A. FABBRICA ITALIANA SPECIALITA PARTI AUTO, SOC. IN ACCOMANDITA SEMPLICE DI M. LIBERO & CO. Sept. 27, 1946, No. 28986. Convention date, Dec. 20, 1944. [Class 61 (ii)] A vice with rapid adjustment of the sliding jaw by rotatable quick pitch screw and final tightening by eccentric lever, comprises a screw 12 engaging a nut 13 in the fixed jaw 2 and having a frustrum head 11 engaging within the correspondingly formed end of a slotted bush 6 and an eccentric lever 18 mounted on a pivot 17 in the sliding jaw 1 and contacting abutment blocks 15, 16 in the ends of the bush, two pivots 14 on the sliding jaw 1 engaging behind the frustrum end 11. Forward pressure on the handle 19 of the eccentric lever 18 moves the jaw 1 up to the work, whereupon rotational movement of the eccentric causes the screw head 11 to bind in the end of the displaced bush 6 and then on further movement effects small gripping movement of the jaw.
Patent GB-519237-A (GB)
Title: Improvements relating to electric motor control systems
IPC: H02P5/485
Filed: 1938-10-06
Abstract: 519,237. Automatic control systems; electric transformers. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 6, 1938. No. 28995. Convention date, Oct. 8, 1937. [Classes 38 (ii) and 38 (iv)] Relative speed.-An electric motor driving equipment has one or more A.C. motors and one or more D.C. motors which are fed through a mercury arc rectifier regulated in dependence on the difference in speed of the A.C. and D.C. motors to give a predetermined speed relation-' ship. In the form shown in Fig. 1, the speed relationship between an A.C. motor 3 and a D.C. motor 8 is determined by adjustment of a phaseshifter 11 in the grid circuit of a rectifier 4 supplying the motor 8. This is effected by means of a mechanical differential 80 driven by motors 78, 73 running at speeds proportional respectively to those of the motors 8, 3. Instead of a direct link, a servomotor controlled by contacts operated by the differential 80 may be used to operate the phase-shifter 11. Adjustment of the speed relationship is effected by altering the field of the motor 78. In a modification the mechanical differential is replaced by an electrical differential comprising a rotor, energized from the A.C. supply to produce a rotating field, and driven in a direction opposite to that of the field at a speed proportional to that of the D.C. motor, so that the field is stationary when the speed relationship is correct but moves when departure occurs and operates a movable stator to effect adjustment. A further modification is shown in Fig. 3 in which the grid - potentials are derived from an impulse transformer provided with a D.C. control winding 13 -whereby the phase of the impulse can be adjusted. The winding 13 is connected in a circuit containing opposing bias voltages ; one, derived from a potentiometer 14, proportional to the rectifier voltage and consequently to the motor speed, and the other from a device 18 giving a voltage proportional to the frequency of the supply 1 but independent of the supply volt-' age. The device 18 is shown in Fig. 4 and comprises a transformer having a primary winding 19 and two opposed secondary windings 24, 25, one 24 mounted on a limb 22 which saturates and the other linking with flux which passes through' an air path 23, the windings being dimensioned and arranged so that the effective flux linking the two windings varies with frequency but is independent of voltage. The impulse transformer is shown in Fig. 6 and comprises a core having a primary winding 45, a secondary winding 47 mounted on a saturated limb 42 and a D.C. control winding 46, the core being provided with magnetic shunt paths 43, 44.