baber/WOPTO huggingface dataset:
Patent GB-296980-A (GB)
Title: Improvements relating to the control of point operating mechanism
IPC: B61L5/04
Filed: 1928-06-30
Abstract: 296,980. Westinghouse Brake & Saxby Signal Co., Ltd., (Assignees of Young, H. S.). Sept. 10, 1927, [Convention date]. Electric control.- Railway points are operated by a fluidpressure motor B controlled by an electric circuit including normal, reverse and lock magnets N, R, L, the supply of current being governed by a polarized relay D, Fig. 1, and the supply to magnet L being also governed by the position of the rod 7 of the points-mechanism F. The relay D actuates neutral contacts 15, 16 and also normal and reverse pairs of contacts 17, 19 and 18, 20. The rod 7 is extended to carry a cam 13 engaged by rollers 23, 24 to actuate contacts 1, 2 or 3, 4, roller 23 being lowered only at one extreme end of the stroke and roller 24 at the other. When rod 7 is moved from either extreme position, contacts 2, 3 are both included in the circuit of magnet L which is thereby energized to restore the points to the position indicated by lever P. In a modification, contact 16 is dispensed with and the contacts 1 - - 4 re-arranged so that only three wires extend from the cam 13. In another form, Fig. 3, with alternating current, the transformer.T supplies current to a relay DA with rotor 25 and two stator windings 26, 27, winding 26 being constantly energized from the transmission line.
Patent GB-191004-A (GB)
Abstract: 191,004. Soc. des Etablissements Gaumont. Dec. 28, 1921, [Convention date]. Addition to 180,684. Void [Published under Sect. 91 of the Act] Frequency, changing.- In modifications of the electromagrietic c o m - passes described, in the parent Specification, current is supplied to a ring - shaped insulated iron or other winding 1 from an alternator, commutator or the like 3. The current induced in a secondary winding 4 due to the varying flux produced by the earth's field in the iron 1 as the current in the iron varies is of double the frequency of the alternator &c. 3. The induced current is collected by tappings on the winding 4, for example by three or four equidistant tappings. The winding 1 may comprise a bimetallic wire with copper core and iron covering and may be arranged in two circuits to produce no external field. Two wire windings may be connected to a two-phase generator.
Patent GB-782539-A (GB)
Title: Photographic camera with interchangeable lens mount
IPC: G03B3/02
Filed: 1955-07-01
Abstract: 782,539. Photographic cameras. DECKEL, H. and DECKEL, F. W. July 1, 1955 [July 16, 1954]. No. 19103/55. Class 98(1) In a photographic camera having at least one interchangeable lens component adjustable in the direction of the optical axis for focusing, and a variable diaphragm stop built into the interchangeable lens mounting, the stop setting element is axially movable with the adjustable lens component and is coupled to a manipulating element on the part of the lens mount fixed with respect to the camera body. As shown in Fig. 1, a cylindrical shutter casing 10 contains shutter mechanism of known kind, the exposure time being adjusted by means of a setting ring 12. A bayonet joint ring 18 fixed to the front 16 of the camera holds the casing 10 in place, and has lugs 26 engaging slots 28 in a socket 30 which comprises the fixed part of the interchangeable lens mount. A lens tube 32. in which the lens components 33a, 33b and 33c are mounted, is slidable axially in socket 30 under the control of a focusing ring 34 threaded on to a flange 36 of socket 30 and engaging an extension 40 of the lens tube 32. A pin 42 on lens tube 32 passes through an axial slot 44 in the flange 36 and engages an annular groove 46 in the focusing ring:34, so that on turning ring 34 the lens tube 32 moves axially without rotation. An iris diaphragm 48, housed in a recess 50 of the lens tube 32, has a setting arm 54 with an axial slot 56 receiving a lug 58 of a coupling ring 60 surrounding periphery 62 of socket 30. Lug 58 passes through a slot 60 in socket 30 so that ring 60 may move axially on socket 30. Ring 60 is urged rearward ly by springs 64 so that projections 70 thereon engage recesses 72 on a time setting tube 74 which rotates on an extension of the bayonet ring 18, and which engages a lug 80 of the time setting ring 12. When a lens is attached to the camera by the bayonet joint, the projections 70 on the ring 60 (which is carried by the interchangable part of the lens mount) engage the recesses 72 on the tube 74 (which rotates on a part fixed to the camera body). By moving ring 60 axially against springs 64, the projections 70 are disengaged to allow ring 60 to be turned relatively to tube 74 until a mark on ring 60 is brought opposite that numeral of a scale of light values on tube 74 which has been chosen, e.g. by means of an exposure meter. Ring 60 is then released so that projections 70 re-engage recesses 72. Ring 60 and tube 74 are then locked so as to turn together to adjust both diaphragm aperture and shutter speed to keep the effective exposure constant. The diaphragm aperture and shutter speed are indicated respectively on a scale 86 on ring 60 and a scale 84 on the tube 74, both scales being read against a fixed mark 82 on the bayonet ring 18.
Patent GB-446385-A (GB)
Title: Process for the production of activated carbon in granular form
IPC: C01B32/384
Filed: 1935-07-04
Abstract: Active carbon in granular form is obtained by impregnating finely divided carbonaceous materials with suitable chemical reagents, e.g. zinc chloride or a mixture of zinc chloride and hydrochloric acid, then subjecting the wet mixture to a second grinding operation to form a plastic homogeneous paste which is then formed into pieces of suitable size and shape, dried and carbonized.  Moderate heating, e.g. up to 100--110 DEG  C., may be applied during the second grinding operation, depending upon the hardness of the materials treated, to facilitate the impregnation and the formation of a plastic paste.  Mixtures of carbonaceous substances may be treated, being previously ground together or p  separately.  Suitable grains may be obtained by spreading the paste on a flat plate and drying, whereupon it shrinks and hardens and the layer may be readily detached from the plate and broken up into irregular pieces; by filling suitable cavities, e.g. holes or grooves, &c., in a flat plate with the paste; or by extruding the paste through a perforated plate, and forming the extruded paste into grains.  Preferably the air contained in the paste is removed by exhaustion.  The grains are dried by a steady increase in temperature up to 200 DEG  C., and then calcined at 700--720 DEG  C.
Patent GB-220631-A (GB)
Title: Improvements in gas meters
IPC: G01F1/42
Filed: 1924-08-12
Abstract: 220,631. Bethlehem Steel Co., (Assignees of Linderman, G. B.). Aug. 14, 1923, [Convention date]. Fluids, regulating volume of flow or pressure of; electrically-actuated valves.-In a gas-meter of the orifice type, the area of the orifice is varied in accordance with changes in the differential pressure due to varying flow, the means for varying the area of the orifice being connected to an indicating and integrating device. In order that the gas shall be measured in standard units, means are provided to compensate for changes in the specind gravity, pressure, temperature, and moisture content. The upstream section 10 of the gas main is connected by conduits 16, 17 to the interior of a receptacle 18, and the downstream section 11 by a conduit 19 with a receptacle 20 preferably arranged in the receptacle 18. The conduit 19 also preferably communicates with the receptacle 18 through a conduit 22 to assure a circulation of gas through the receptacle 18. The receptacle 18, 20 are separated by a seal consisting of liquid in a cup 25 and the receptacle 20, and the level in the cup 25 therefore depends on the differential pressure. A float 27 in the cup 25 is suspended from a lever 28 carrying contacts 29 adapted to co-operate with contacts 30, so that when the differential pressure changes, an electric motor 14 is driven in one direction or the other to operate means for varying the area of the orifice, which is preferably constituted of an iris diaphragm, until the differential pressure returns to its predetermined value, a recording and integrating device being simultaneously operated. In order to neutralize the effect of a change in specific gravity of the gas, a float 76 depending from the lever 28 floats in a cup 75 connected to a cup 73, in which is a float or plunger 72 suspended from a floating diaphragm 67, the under surface of the diaphragm 67 being acted on by gas in the conduit 17, and the upper surface by air in a liquid-sealed tube 61. The effects of changes in pressure, temperature, and moisture content are neutralized by a float depending from the lever 28 into liquid contained in a cup 81 connected to a receptacle 78, this receptacle containing water and a unit of gas and being in good heat conductive relation with respect to the gas main. Specification 232,606 is referred to.
Patent GB-774197-A (GB)
Title: Gas turbine lubrication system
Inventor: PERRY SYDNEY WILLIAM HENRY
IPC: F01D25/18
Filed: 1954-07-01
Abstract: 774,197. Gas turbine plant. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. June 30, 1955 [July 1, 1954], No. 19355/54. Class 110 (3). [Also in Group XXXIV] A gas turbine plant comprising an inner shaft 7 carrying a low-pressure compressor and a lowpressure turbine 5, and an outer shaft 6 carrying a high-pressure compressor and a high-pressure turbine 4 has an oil scavenge pump, shown as a centrifugal impeller 16 mounted on the shaft 6 for the purpose of drawing lubricant directly from the bearings 9, 11 for discharge through outlets in a casing 19. The impeller is clamped between the inner race of ball-bearing 9 and a sleeve 15 secured by a wedge-shaped ring 17 and a nut 18, and is formed with slots 16c to allow passage of lubricant from roller bearing 11 through apertures 6c in the shaft 6. Lubricant is prevented from escaping from between the rearward ends of shafts 6, 7 by sealing-rings 21, 22. Other bearings of the turbine plant may also be provided in the same way with one or more scavenge pumps.
Patent GB-335573-A (GB)
Title: Improvements in thermionic cathodes of vacuum electric tube devices
IPC: H01J1/20
Filed: 1929-06-24
Abstract: 335,573. Cachemaille, A. S., (Westing- house Lamp Co.). June 24, 1929. Vacuum tubes.-An indirectlyheated cathode comprises a tubular cathode 14 enclosing an insulating tube 8 which embraces and supports a re-entrant helical hairpin heater 9, the terminals 10, 11 of which are at the same end and mav serve as supports for the cathode. A mandrel on which the heater is wound mav he slipped into the insulator and the heater released to engage with the internal wall thereof. A carbonate coating on the cathode may be converted to oxide by heat generated in the heater. Specification 278,787 is referred to.
Patent GB-442073-A (GB)
Title: Improvements in the production of crimped filaments, yarns or fibres
IPC: D02G1/02
Filed: 1934-06-30
Abstract: 442,073. Crimping yarns, filaments, or fibres. BRITISH CELANESE, Ltd., 22, Hanover Square, London, FINLAYSON, D., c/o British Celanese, Ltd., Spondon, near Derby, and HAPPEY, F., 71, St. Peg Lane, Cleckheaton, Yorkshire. June 30, 1934, No. 19371. Addition to 424,880. [Classes 120 (ii) and 120 (iii)] Filaments or fibres are crimped by imparting twist to a travelling yarn containing the filaments or fibres, applying a setting medium to the travelling yarn over part of its length actually receiving the twist, and subsequently twisting the yarn in the direction reverse to that of the twist imparted. The untwisting may take place as a separate operation subsequent to the twisting and setting operation or may be effected continuously with, though subsequent to, the twisting and setting operation, e.g. by the use of a twist tube or the like or by collecting the yarn on a twisting device adapted to impart a twist in the direction opposite to that of the original twist. As shown, the yarn 4 is fed upwards by rollers 5 through a rotatable tube 6, the lower end of which is provided with an inverted funnel 10 into which steam is fed by a nozzle 12 from a header 11 ; the lower end of the tube 6 is provided with a disc 13 having a hook-like member 14 while a cap 15 at the top of the tube is provided with a similar member. The rotating tube 6 inserts a false twist in the yarn which is collected on a bobbin 19 with the twist it had on reaching the rollers 5. The steam supplied to the header 11 may be slightly wet or it may become wet by condensation in the funnel 10 or in the tube 6 ; softeners for the substance of the yarn may be used in place of steam, e.g. in vapour form. The yarn may be passed through a chamber to the interior of which the setting medium is applied, e.g. through the chamber provided with an offset member described in Specification 440,653. Continuous filament yarns crimped as described above may be cut into fibres, and such fibres, like those produced according to the parent Specification, may be spun into yarn alone, or mixed with other fibres or the yarn may be directly converted into yarn containing staple fibres in the manner described in Specifications 397,138, 399,838, 410,805, and 424,683.
Patent GB-147466-A (GB)
Title: Improvements in electromagnetic wave receiving systems
IPC: H04B1/12
Filed: 1920-07-07
Abstract: 147,466. Soc. Franþaise Radio-Electrique, (Assignees of La Briere, A. de). May 7, 1919, [Convention date]. Wireless signalling.- The interference of atmospherics is reduced by employing two receiving-circuits acting differentially on the signal indicator, one circuit being tuned to the group frequency of the desired signal waves, the other being de-tuned or aperiodic. Substantially equal effects are produced in the two circuits by atmospherics and .the indicator is unaffected, whereas signals of the correct group frequency produce a predominating effect in the tuned circuit and operate the indicator. The system may be combined with one in which two circuits, tuned and de-tuned respectively to the wave frequency, are connected differentially to the group-tuned circuits. As shown in Fig. 3, a detector circuit 2 connected across the aerial inductance is coupled tu two circuits 3, 4, only one of which is tuned to the desired group frequency. The currents in these circuits are rectified by detectors 5, 6 and oppose each other in their action on the indicator 9. The detectors may be of the thermionic type, and the inductive couplings may be replaced by direct couplings. The two separate coils of the indicator 9 may be replaced by a single coil through which the currents pass in opposite directions ; or the coils may control relay switches in battery circuits each including an indicator coil. If an indicator is used in which the effect is proportional to the square of the current, the detectors 5, 6 may be omitted and the currents flowing in the circuits 3, 4 may be amplified by thermionic valves. Fig. 7 shows a modification in which two circuits R, R<1> inductively related to two aerials A, A' are respectively tuned and detuned to the wave frequency. Across each eircuit is connected a detector 2, 2<1> in series with pairs of coils L, L<1>. One pair of coils L, L' oppose each other in their effect on the circuit L1, and the other pair oppose each other in the circuit L2. The circuit L1 is tuned to the group frequency of the desired signals, and the other circuit is out of tune, and they act differentially on the indicator 9. When signals are produced at the transmitting-station by varying the wave length of a continuously-emitted wave, and are received by the heterodyne method, one of the circuits 3, 4, Fig. 3, is tuned to the signal beat-frequency, and the other to the space beat-frequency.
Patent GB-705993-A (GB)
Title: New or improved method and machine for the manufacture of cross bottom valve bags
IPC: B31B150/00
Filed: 1952-07-31
Abstract: 705,993. Valve bags. HONSEL C., [trading as MASCHINENBAU HONSEL & CO.]. July 31, 1952 [Aug. 3, 1951], No. 19420/52. Class 94 (2) In a machine for providing cross bottom valve bags, which have a short tube length in relation to the size of the cross bottom, with a valve sleeve, the bag tube 1 is transferred from the bottom forming cylinder 3 to the cylinder 4 where it is held by the suction duct 5 and is provided with adhesive by a segment 6 from a tank 7a. A valve sleeve length which is drawn from the paper roll 8 is cut at its outer edge by members 10, 11 and is drawn forward by rollers 12, 13 and cut to length by members 14, 15. The segment 16 applies the adhesive strip 17, Fig. 3, to the sleeve sheet 19 from a tank 18a and the sleeve 19 is creased and gripped by the tongs 20 on the roller 21 which cooperate with a creasing roller 22. On further rotation of the roller 4 the folding blade 23 on the roller 21 co-operates with the foldting and gripping members 25 on the roller 4 to crease the bottom flap 24. Fig. 3, the air duct 5 being cut off, and on further rotation the folding blade 26 co-operates with a groove on the roller 4 to crease the second bottom flap 29 together with the valve insert 19 while at the same time the bar 30 which moves faster than the cylinder 4, runs beneath the flap 29. The bottom flap 29 is then folded over by the bar 30, and the bottom flap 24 is folded over by a stationary bar, the folded bottom with the inserted sleeve being rolled by a pressure roller.
Patent GB-390792-A (GB)
Title: Bundling machine for hay, straw and the like
IPC: A01F1/00
Filed: 1931-07-06
Abstract: 390,792. Binding-apparatus. FUMAL, C., 114, Avenue de l'H¶pital, Chateauroux, Indre, France. July 6, 1931, No. 19460. Convention date, July 7, 1930. Void [Published under Sect. 91 of the Acts]. [Class 6 (iii).] Hay or straw is drawn from a hopper 2 by tines 5 projecting from a pair of rotating cylindrical casings 3, 3a, the tines being pivotally mounted on stationary eccentric shafts so that they are withdrawn into the casings after feeding the hay from the hopper. One casing may be driven at a higher rate than the other to' comb the hay. The distance between the casings and the angle of eccentricity of the stationary shafts may be varied. The hay passes over a rotating roller 17 on to an inclined floor 18 above which is a slotted top plate 19 provided with ratchet like members 20 which co-operate with pivoted forks 25 actuated by cranks 22 in feeding the hay along the passage above the floor. Two series of stops comprising adjustable arms 55, 71 are arranged at the end of the passage the hay being forced against these stops by compressors 32 ; simultaneously vertical plates 36 carried at the ends of levers 41 are moved transversely of the passage by the action of cams 39 to compress the hay laterally. When the compression of the hay reaches a predetermined value the stops 55 yield and throw out the clutches through which the casings 3, 3a and the feeding forks 25 are driven. A series of needles 45, which with the corresponding knotters 53 are driven by crown wheels 50, is then brought into action to tie up the bundles. These needles are coupled to the stops 71 and as the needles are moved to tie up the bundles these stops are moved forwards to increase the compression of the hay. The stops 55, 71 are then moved back and the tied bundle ejected by an ejector arm 54. A catch lever is fitted on the knotter shaft by which the machine may be stopped should jamming occur. Small particles of hay falling from the operative parts of the machine reach a cloth or a tank whence they are delivered back to the compressing zone by a fan. The machine may be stationary and actuated by an engine or may be a travelling one, power then being taken from the wheels.
Patent GB-358081-A (GB)
Title: Improvements in or relating to rotary pumps or compressors
IPC: F04C2/07
Filed: 1930-06-26
Abstract: 358,081. Rotary pumps. ZENS, P., 4, Rue Cambaceres, Paris. June 26, 1930, No. 19468. Convention date, June 28, 1929. [Class 110 (ii).] In a geared-vane type of compresser the vanes 200 are fixed to one or other of shafts 157, 158, which are driven relatively to one another by means of forked arms 120 pivoted on pins 152 which are held by an eccentricallypositioned driving element 150. A starting-handle turns a spindle 196a and, through a gear wheel 196 and internalteeth on a ring 194, revolves the rotor 150. In a modified arrangement, Figs. 2 and 3, the vanes 200 are hollow and fitted with valves 202, each consisting of a tongued thin plate fixed at one end. The tongues cover ports 201. Fluid is sucked from an end chamber 203 by way of ports 10a to a space between two vanes 200, and delivered through valves 202 to the interior of the vanes 200 and through ports in the ends of the vanes to ports 11a of a chamber 204. The Specification as open to inspection under Sect. 91 (3) (a) describes a compresser in which pistons moving in a torus-shaped chamber are given alternating motions by means of three slides spaced at 120‹ to each other which move in grooves on an eccentrically-disposed driving rotor. Other forms of driving mechanism such as elliptical gears, cams, eccentrics, or pawls can be used in place of the slides. This subject-matter does not appear in the Specification as accepted.
Patent GB-1253418-A (GB)
Title: Improvements in or relating to electrical watthour meters
Inventor: GRAY BERNARD HERBERT LESLIE
IPC: G01R11/60
Filed: 1969-04-16
Abstract: 1,253,418. Maximum demand meters. SANGAMO WESTON Ltd. 15 April, 1970 [16 April, 1969], No. 19513/69. Heading G4D. [Also in Division G1] Differential gear mechanisms are included in the drives linking a progressive demand register 18 to a maximum demand register 20 so that the latter is unaffected until the reading of the former reaches equality. The planet carrier 30 of each differential gear carries a magnet 31 which closes a reed switch 32 only when the wheels of the registers 18, 20 are in agreement. Before use the transfer mechanism spindles 39, 41 have been displaced so that the numeral wheels, which are weighted, have zeroized. The first measuring period results in pulses from the drive to total register 15 driving motor 44 and register 18, and because all the switches 32 are closed motor 47 is also energized to drive register 20, the halves 24, 28 of the differentials being driven in opposite directions so that the planet carrier 30 remains stationary. At the end of a measuring period spindle 41 is displaced so that register 18 zeroizes. The planet carriers are therefore displaced and the circuit through switches 32 to motor 47 broken until such time as the old maximum demand reading is attained. Current consumed during resetting is registered by the drive lifting a weighted quadrant (Fig. 6) which adds to the register when resetting is completed.
Patent GB-195315-A (GB)
Title: Improvements in or relating to spectacles
IPC: G02C5/16
Filed: 1922-07-17
Abstract: 195,315. Barnes, E. July 17, 1922. Spectacles. - The sides of spectacles are provided 'with pivoted projections which engage the upper portion of the ear of the wearer. The projection may be fixed in position or adapted to slide along the sides and mav be spring- controlled. In the example shown in Fig. 1 the projection 3 is of oval form and fitted to a hook side, which is fitted with springs 6, 7 to maintain the projection 3 in position. Fig. 4 shows a straight side with a similarly shaped projection 3 maintained in position by a spring 6 on an elongation of the side. The projections may be duplicated and in the form of discs having the side between them. In one example the discs are arranged eccentrically on their pivots, and in a further example the extended portion of the straight side is spring- hinged to the side. Specification 18894/05 is referred to.