baber/WOPTO huggingface dataset:
Patent GB-239317-A (GB)
Title: Improvements in and relating to shaft couplings
IPC: F16D1/12
Filed: 1924-07-08
Abstract: 239,317. British Thomson-Houston Co., Ltd., and Salisbury, A. G. July 8, 1924. Shaft couplings of the type comprising an intermediate ring carrying sets of projections to engage recesses in the shaft members. The two sets are disposed on the same side of the ring, in order to permit uncoupling without disturbing the shaft members, and preferably differ in number to allow vernier adjustment. An intermediate member 1, comprising a rubber or other resilient ring 10 interposed between rings carrying different numbers of projections 3, 5, is movable axially to engage recesses 4, 6 in the shaft members 2, 7, and is secured by a washer 8 and nut 9.
Patent GB-132904-A (GB)
Title: Improvements in Collapsible Boxes.
Inventor: ROBERTS RICHARD HENRY
IPC: B65D6/00
Filed: 1918-10-08
Abstract: 132,904. Roberts, R. H., and Kingswell, P. N. Oct. 8, 1918. Folding or knockdomn boxes; straps and bands, strengthening; lids and covers; c o r n e r joints.-A collapsible box &c. has braces 20, 26 which are pivoted to the bottom 21 and top 27 of the box and engage grooves 28, 30 formed in the ends 24, 25 of the box. The sides 23 of the box have tongues engaging vertical grooves in the ends 24, 25, and the bottom edges of the ends 24, 25 have grooves 40 engaging metal strips projecting upwards from the bottom 21. In a modification, these metal strips are omitted, the ends 24, 25 having tongues engaging grooves in the bottom 21. In order to collapse the box, the top 27 is removed after detaching the braces 26 from the ends 24, 25, and the sides 23 are then removed vertically and the ends swung upwards and inwards about the braces 20. The sides 23 are then placed on the bottom, and the ends 24, 25 and the top 27 are placed over them, the whole being secured in the collapsed condition by causing the braces 26 to engage grooves 43 in the bottom 21. In order to hold the box more firmly in its erect condition, additional braces may be used, as indicated by the broken lines. The braces 20, 26 may be retained in the grooves 28, 30 by fixed spring plates 29 or by turn-buttons or sliding plates.
Patent GB-693202-A (GB)
Title: Improvements in plant for supplying hot fluid to fluid receiving means
IPC: F22B21/34
Filed: 1951-07-11
Abstract: 693,202. Expansion joints and supports for pipes. BABCOCK & WILCOX, Ltd. July 11, 1951 [July 11, 1950], No. 16424/51. Classes 99 (i) and 99 (ii). A flexible conduit 31 for conveying hot fluid, e.g. steam from a generating unit 10 to a turbine 11, has connected to it means adapted to vary its position in accordance with the temperature condition in the unit 100 and/or turbine 11, whereby the conduit 31 is prestressed in one direction when the plant is cold, and in the other when the plant is fully heated. The conduit 31, which is divided into two tube groups 31A, 31B, connects an outlet header 30 on the unit 10 to a manifold 32 leading to the turbine 11. The tube groups 31A, 31B and the manifold 32 are independently supported from fixed frameworks, and are independently adjusted in position, the groups 31A, 31B by means of a linkwork connecting them with a vertically movable beam 28 secured to wall tubes of the unit 10, and the manifold 32 through levers 60, 61 pivotally secured to steelwork 62, 63. The unit 10 is top supported from steelwork 13, and hence it, and the beam 28, can move downwardly due to thermal expansion. The tubes 31A, 31B are supported in plates 52, 54 fixed to a diagonal beam 44, see Fig. 3, and downward movement of the beam 28 acts through a lever 49 and a rod 39 to tilt the L.H. end of beam 44. Further, the beam 28 is linked through a part 40, lever 35, and rod 41 to a beam 43 spring supported at one end at 47 and connected at that end to the beam 44. This linkwork adjusts the R.H. end of the beam 44, the two ends of the beam 44 being unequally lowered for a given depression of the beam 28. The linkwork is fulcrumed on beams 37, 46 forming part of the steelwork of a fixed floor 38. The tubes 31A, 31B are supported on both the up-and-downstream sides of the plates 52, 54 by constant support hangars attached to the main steelwork, and the manifold 32 is similarly supported by constant support hangars, e.g. as 58. The levers 60, 61 transmit movement of turbine leads 33, due to thermal expansion, to the manifold 32 which moves downwardly and to the left in Fig. 1.
Patent GB-186117-A (GB)
Title: Improvements in electric resistances
IPC: H01C3/14
Filed: 1921-06-15
Abstract: 186,117. Frost, S. G. June 15, 1921. Wire and ribbon resistances, cored; inductances. - In non- inductive or inductive electric resistances of the type comprising a series of separable units, and particulary suitable as grid leaks for thermionic valves, adjacent units are connected together mechanically and electrically by separate couplings which are all coaxial. A resistance of any desired value can thus be assembled and any defective unit can be replaced. Plain, screw, or spring plug-and-socket couplings may be used, and clamping-means, preferably in the form of bolts passing through the units, may be employed in addition to the couplings. Each unit may comprise a hub, spool, or the like. with coaxial conductive plug-and-socket couplings. In the form shown, each unit comprises a wire or other resistance wound or mounted on an insulating bobbin 6. The flanges 7 of the bobbin 6 carry conducting flanges 9 having screw plug-andsocket couplings 14, 15 to which the ends of the resistance are connected. To facilitate cooling by heat radiation and convection, there are provided bushes 8 on the couplings 14 serving to space adjacent units apart, apertures 13 in the flanges 7, radial apertures 12 in the spool 6, and a central aperture 11 in the spool 6 and couplings 14, 15. A series of units coupled together are held above a base 20 by contacts 16 provided with central apertures 23 and mounted on laminated springs 17 carried by parts 18 adjustably locked in a dovetail groove 19 in the base 20 by set-screws 21 so that varying numbers of units may be accommodated. Tappings in the form of conducting tags may be inserted between the units. According to the Provisional Specification, the ends of the resistance wires in adjacent units may be soldered together.
Patent GB-237420-A (GB)
Title: Improvements in or relating to the carbonising of wool, and machines therefor
IPC: D01C5/00
Filed: 1924-07-09
Abstract: 237,420. Shaw, A., and Sharp, B. July 9, 1924. Gases and vapours, treating with. - In apparatus for carbonizing wool, acid is fed to the retort a from a tank c connected by a length of flexible piping f to a glass tube d projecting into the retort. The tank or the glass tube is provided with a cock e for cutting off the supply of acid.
Patent GB-504084-A (GB)
Title: Improvements in safety wrenches
IPC: B25B23/142
Filed: 1938-06-01
Abstract: 504,084. Wrenches; dynamometers. SUNNEN, J. June 1, 1938, No. 16441. Convention date, Dec. 27, 1937. [Class 61 (iii)] [Also in Group XIX] A wrench with torque-limiting means comprises a hand lever A pivoted at a to a jaw lever B carrying a nut socket 3 and a link 5 connecting the end 4 of the jaw lever B to a tubular member 11 slidable against the pressure of a spring 15 relative to the handle proper 8 fixed on the end of a rod 9 threaded at its forward end to screw into a threaded hole 10 in the forward end 6 of the hand lever. The spring 15 bears at one 'end inside the handle 8 and at the other end against a block 12 fixed by swaging at 13 to the tubular member 11 and apertured at 14 to clear the central rod. The degree of spring pressure corresponding to the limited torque to be applied in tightening a nut is adjusted by turning the rod 9 by its head 18 so that the threaded end 17 advances or retreats in the hreaded hole 10, the pressure thus put on the spring being indicated by a scale 20 on the tubular member 11 and index mark on the handle 8. In operation, the spring supported member 11 permits the handle to move against the jaw lever B when the required torque is reached. In a modification, Fig. 5. the link 5 is replaced by a cam lever 21 pivoted to the end of the jaw lever B and rolling on the inner surface 26 of a slotted lug 27 carried by the tubular member 11; the cam lever is retained in position by a cross pin 29 engaging a slot 28.
Patent GB-1159076-A (GB)
Title: Projection Screen.
Inventor: HOFMANN ZDENEK
IPC: G03B21/60
Filed: 1967-04-11
Abstract: 1,159,076. Laminates. CESKOSLOVENSKA AKADEMIE VED. 11 April, 1967 [20 Sept., 1966], No. 16446/67. Heading B5N. [Also in Division G2] A projection screen comprises a wood, paper, fabric or plastics base on which are stuck a reflecting metal foil, e.g. of aluminium followed by a transparent plastics foil, e.g. of polyvinylchloride whose external face is matted and rendered light diffusing and whose internal surface is glossy. Instead of an aluminium foil, aluminium may be coated, by vacuum deposition, on to the internal surface of the transparent foil.
Patent GB-551770-A (GB)
Title: Improvements in and relating to the fixing of ferrules and the like to cords and thelike
IPC: F16G11/02
Filed: 1941-12-22
Abstract: 551,770. End fittings for cords. STROUD & CO., Ltd., J., and DRAPER, F. W. Dec. 22, 1941, No. 16466. [Class 109] The ends of a cord or two separate cords can be joined together, or a part of a cord may be attached to an end to form an eye, or a member such as a hook may be secured to an end of a cord by applying a ferrule 12 to the cord end or each cord end. The ferrule is indented as at 13 so as to engage against a metal wire 11 arranged to compress the cord end or cord part locally. The cords may incorporate rubber threads and may be used as shock absorber'cords for aircraft landing gear or as tow ropes.
Patent GB-476874-A (GB)
Title: Improvements in or relating to tuning and indicating devices for use with wireless apparatus
IPC: H05K7/02
Filed: 1936-06-13
Abstract: 476,874. Adjusting wireless apparatus. BROWN, W. J. June 13, 1936, No. 16527. [Class 37] A tuning and indicating device for a wireless receiver includes a resiliently mounted condenser or other tuning device having an angularly movable cursor or pointer attached or geared to the spindle and co-operating with a scale fixed to the chassis or other fixed part. As shown, the condenser spindle 2 is adjusted by means of a tuning knob 8 on a shaft 6 on which is a pinion 5 engaging a toothed sector 4 fixed on the condenser spindle 2. The frame 3 of the condenser is resiliently supported by means of an attached arm 11 having its ends 12, 13 bent inwards and held between rubber washers on supporting pillars 16, 17 on the chassis 1. The rear of the frame 3 rests on a rubber washer 22. The bar 11 gives a wide spacing between the front points of suspension, to reduce the tendency of the condenser to turn as a whole during tuning. A light resilient pointer 25, formed of a length of stout wire, is soldered or otherwise secured to a cap on the spindle 2, and moves over scales 26, 27, 28 on a dial 29 secured to the chassis 1. Relative vibration of the pointer with respect to the dial, due to the resilient mounting of the condenser, is damped out by a projection 33 on the pointer bearing against the dial. This may be formed as shown by bending the wire forming the pointer, or by bending the pointer so that its tip is in contact with the dial, or by a lug integral with or applied to the pointer. Alternatively the pointer may be bent into bow shape so that its middle part rubs against the dial. A vernier or fine adjustment scale 41 may be fixed on the spindle 6 and co-operate with a pointer fixed to the chassis. A fine adjustment drive may be effected through a spindle 40 and a ball clutch or friction gear by which reduced movement is transmitted to the spindle 6.
Patent GB-117383-A (GB)
Title: Improvements in Continuous Tunnel Kilns.
Inventor: BENJAMIN GEORGE HILLARD
IPC: F27B9/26
Filed: 1917-11-12
Abstract: 117,383. Benjamin, G. H. Nov. 12, 1917. Tunnel kilns.- A continuous tunnel kiln for use in the manufacture of tiles, pottery, and the like consists of a main chamber or tunnel heated by closed combustion chambers arranged in line along its sides in which gas is burned, and by the circulation through the main chamber, and through the goods, of hot air which, after exhaustion from the goods chamber, may be in part used for combustion. Fig. 1 shows sectional plan of one end of the kiln, and Figs. 3 and 4 show transverso sections through differeut parts of it. Gas and air are supplied by pipes 16, 17 i and burners 15 to each combination chamber 6 at two points as shown, or at one point only, through a corrugated section 12 and a watercooled sleeve 11, and the combustion products pass away at 10 through arched flues 26, Fig. 4. to a multitubular air-heater 35 and thence to a chimney In the arrangement, shown, the outlet portion 10 of each combustion chamber is situated between two burners 13. In a modification, each combustion chamber has one burner only, the outlet portion being at one end. Some of the hot air from the air heater 35 is drawn off by a pump for combustion in the burners, gas being supplied by another pump. The gas and air are supplied preferably at pressures of one and one and a quarter lb, per sq. in. respectively, The remainder of the hot air from the heater 35 is led by pipes 38 to flues 39 beneath,the combustion chambers 6. and circulate through goods 41, passing away through flues 44. 45 formed in the trucks conveying the goods through the kiln, and through flues 46, 47 in the base of the kiln to the exhaust fan 49. The passages 45 are sealed from the interior of the kiln by sand seals 53 in which move the downturned edges of a plate on the truck. Cold or tempered air may be admitted to the kiln by shutting a valve on a pipe connecting the air-heater and the air pump, and opening another inlet on the air pump. The fan 49 may deliver the air withdrawn from the kiln to the inlet 34 of the air-heater for use again,
Patent GB-1022498-A (GB)
Title: Improvements in and relating to heat exchanger cleaning apparatus
IPC: F28G15/04
Filed: 1964-04-22
Abstract: 1,022,498. Soot - blowers. DIAMOND POWER SPECIALTY CORPORATION. April 22, 1964 [June 5, 1963], No. 16635/64. Heading F2N. In a soot-blower of the kind which includes a feed tube for supplying high pressure blowing medium to a lance tube 24 formed with nozzles, the feed tube comprises a number of telescopically mounted sections 84, 86 adapted to extend and contract respectively during projecting and retracting movements of the lance tube. The lance tube 24 consists of a number of sections of progressively decreasing diameter and is rotatably supported by a carriage 18 movable on a track 20 carried by a rail 10. The carriage is moved longitudinally by means of a rack and pinion, and the lance tube is simultaneously rotated by a reversible electric, pneumatic or hydraulic motor mounted at the forward end of the guide rail 10, or on the carriage. The lance tube and feed tube respectively are supported by roller bracket at the forward end of the lance tube and a trolley 92, and the cleaning fluid supply valve 90 is actuated by the carriage to open or close at the commencement of the projecting movement or end of the retracting movement of the lance tube. A swirl or turbulence is imparted to the cleaning fluid by vanes located in the feed and lance tubes; cooling of the lance tube is also effective.
Patent GB-462639-A (GB)
Title: Improvements in and relating to electric condensers
Filed: 1936-06-15
Abstract: 462,639. Condensers. PORZELLANFABRIK KAHLA. June 15, 1936, No. 16668. Convention date, June 15, 1935. [Class 37] A condenser, the temperature coefficient of capacity of which can be varied, comprises a base plate 10, bearing a metallic coating 11. shown as of semicircular outline, upon which is rotatably mounted a plate 12 of material of positive temperature coefficient. In a recess 15 on one part of this plate a metal coating 17 lies, while an aperture in another part is filled with a block 14 of material of negative coefficient glazed in so that its under surface is level with the under surface of the plate 12. On the outer side lies a metal coating 16 in electrical connection with the coating 17, the thickness of the plate 12 under the coating 17 bearing the same ratio to the thickness of the block 14 as that of the respective dielectric constants of the two materials.
Patent GB-1420814-A (GB)
Title: Ignition timing for internal combustion engines
IPC: F02P3/045
Filed: 1973-04-06
Abstract: 1420814 Ignition systems; timing ignition LUMENITION Ltd 1 April 1974 [6 April 1973] 16680/73 Heading FIB In an electronic ignition system for an internal combustion engine each spark at a spark plug is extinguished at a predetermined crank shaft angle irrespective of the crank shaft angle at which this spark is initiated. As the disc 3 is rotated at crank shaft speed of the engine the infrared radiation from lamps 5 and 6 impinges on respective phototransistors 7 and 8 through the apertures 9 and slits 10. Accordingly the photo-transistor 7 produces four current pulses per revolution of the disc 3 whilst the photo-transistor 8 produces a large number of pulses per revolution. The two triggers comprising transistors 30a, 32a and 30b, 32b fast switch and amplify these pulses. During the time that the photo-transistor 7 is energized the transistors 30a and 32a are respectively OFF and ON. When the infrared radiation is cut off the output of the first trigger becomes high. This output is applied to both a frequency divider 14 and a transistor 50. The frequency divider 14 now counts the pulses from the second trigger 30b, 32b according to the number set into it from a computer 16. The output of the frequency divider 14 is at a low level unless the computer calls for maximum advance. Therefore when the first trigger 30a, 32a produces a high level output the power transistors 54, 56 are not switched because of the continued presence of a low level output from the frequency divider 14. In the example illustrated the frequency divider is set to count down a total of six pulses before the output switches to the high level. When the count of six has been completed the output becomes high at the seventh pulse and the transistor 50 switches on. This in turn switches the power transistor Darlington pair 54, 56 off to switch off the flow of current in the primary winding of the ignition coil 26 and thus initiate a spark at a plug 72. After a predetermined time the output of the first trigger reverts to a low level thus extinguishing the spark and resetting the frequency divider which also reverts to a low level, these events both happening when the photo transistor 7 is again energized by infrared radiation. The computer 16 receives at two inputs 24a, 24b information concerning the speed and load of the engine and the computer calculates the count down necessary to obtain the correct advance or retard of the ignition timing.
Patent GB-793803-A (GB)
Title: Improvements in or relating to props, especially for use in coal mines
Inventor: TEBB BERNARD
IPC: E21D15/30
Filed: 1955-06-10
Abstract: 793,803. Hydraulic pit proos. MASTABAR MINING EQUIPMENT CO., Ltd., [formerly MASTABAR BELT FASTENER CO., Ltd.]. June 7, 1856 [June 10, 1955], No. 16827/55. Class 20(2) [Also in Group XXIX] The spring pressure relief valve of an hydraulic pit prop is adapted to open at pressures increasing with the load on the pit prop. In Fig. 1 the relief valve 57 is maintained closed by an arm 62 on a torsion bar spring 61 the torsion of which is increased by a cam on the end of a bar 73, moved upwards by a connection 74 to the lower prop part 14 as the prop collapses under load. In a modification the relief value 83, Fig. 4, is held closed by a spring 84 attached to a piston 81 in the upper prop part 11. As liquid escapes from the prop pressure chamber, on increase of load, through the valve 83 to the reservoir space 82 in the part 11 it raises the piston 81 and increases the tension of the spring. In a modification of this construction the spring is above the piston 81 acting as a compression 'spring to force the valve 83 down on to its seat.
Patent GB-927605-A (GB)
Title: Electrical circuit capable of performing logical functions
IPC: H03K19/162
Filed: 1960-05-12
Abstract: 927,605. Parametrically excited resonators. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 12, 1960 [May 29, 1959], No. 16838/60. Class 40 (9). Parametrically excited resonators A to F, Fig. 5, are linked by switches 42A to 42F to a common line 50 so that, on operation of an odd number of switches, all the switched resonators adopt the same phase as the initial phase in the majority of the switched resonators. A single resonator comprises a capacitor 28, Fig. 1, and windings 22, 24 on saturable cores 10, 12. The cores are excited by a pumping frequency in windings 18, 20 so poled as to have a resultant transformer action in the tuned circuit. The cores are biased to a non-linear portion characterized by constant current fed to windings 14, 16 from source 15 and the tuned circuit is linked to switch 42 and to an information input lead 44 by a transformer 36.
Patent GB-995468-A (GB)
Title: Improvements in or relating to an aerial or space vehicle having a plurality of propulsive nozzles
Inventor: BURTOFT ARTHUR CHARLES
IPC: F02K9/97
Filed: 1963-04-30
Abstract: 995,468. Jet propulsion nozzles. BRISTOL SIDDELEY ENGINES Ltd. Feb. 28, 1964 [April 30, 1963], No. 16872/63. Heading F1J. The invention relates to an aerial or space vehicle having a plurality of propulsive nozzles arranged in a cluster within a common tubular skirt, the skirt extending axially beyond the discharge ends of the nozzles whereby during operation at increasing altitude, the individual jets discharged from the nozzles will diverge by an increasing amount, such that at and above a certain altitude a condition will be attained in which the jets will have diverged sufficiently as to merge partly with one another and to flow in contact with the rearward edge of the whole periphery of the skirt, thereby forming a seal which is effective to maintain a gas pressure within the skirt higher than the pressure outside the skirt. The rearward edge of the skirt is defined by a plurality of circumferentially spaced members which extend rearwardly, at least during operation at and above the said certain altitude, the profile of each of the members being defined substantially by the curves of intersection, at the said certain altitude, of adjacent jets with an imaginary extension of the forward portion of the tubular skirt. In the embodiment described, the vehicle has a cluster of four propulsive nozzles 2 disposed within a cylindrical tubular skirt 1 which is formed with four extension members 3, the extension members being hingedly secured at their forward ends to the tubular skirt 1. The hinges 4 which extend chordwise of the skirt are shown in Fig. 4 but not in the other Figures, the hinged connection allowing the extension members to be disposed in an inoperative position in a transverse plane through the skirt between two adjacent nozzles, and an operative position in which they extend rearwardly of the skirt. In Fig. 1, the envelopes of the jets are indicated by dotted lines and the jets themselves by a stippled pattern. In Fig. 3 in which the conditions at a lower altitude than that appertaining to Fig. 1, are indicated, it may be seen that a circumferential seal between the jets and the tubular skirt is not formed. The increased pressure obtaining within the skirt when the circumferential seal is formed results in an effective increase in propulsive thrust.