baber/WOPTO huggingface dataset:
Patent GB-845895-A (GB)
Title: A high output mercury vapour flourescent discharge lamp
IPC: H01J61/04
Filed: 1957-01-16
Abstract: 845,895. Discharge lamps. SYLVANIA ELECTRIC PRODUCTS Inc. Jan. 16, 1957 [June 27, 1956], No. 1688/57. -Class 39(1). A mercury vapour fluorescent discharge lamp comprising a tubular envelope with a filling of gas, such as neon or helium, at low pressure, a coating of phosphor on the interior surface thereof, and two electrodes 11 near to the two ends of the envelope, has one or two transverse light-reflecting (including visible and U.V. light, and heat radiation) shields 13, 14 near each of the ends of the lamp providing cool regions for condensation of mercury. The arrangement is such that, in operation at a power loading of at least 25 watts per foot length of the lamp, each cool region has a maximum temperature of 50C., preferably 35C. to 45C. or 50C., for an ambient temperature of 80F. in still air. The envelope area of the cool regions can be less than 1 per cent of area of the envelope. In the construction shown in Fig. 2, the lead-in wire, 6 and 7 support the coiled tungsten wire electrode 11, preferably of the coiled-coil or triple coil type carrying a quantity of alkaline earth oxides to which may be added a small quantity of zirconium dioxide. The electrode 11 can be as described in Specification 655,123. A cylindrical metal shield 12, preferably blackened with a carbon coating, surrounds the electrode 11, and is connected to lead-in wire 7. The shields 13 and 14, which may be of aluminium or nickel, are supported from the lead-in wires 6 and 7 and each shield is insulated from at least one of the lead-in wires. The shield 13 can be welded to the wire 7 by an L-shaped tab 18, and insulated from the wire 6 by the ceramic bushing 15, and the shield 14 can be insulated from the wire 7 by the ceramic bushing 16, and welded to the wire 6 by an L-shaped tab 19. Both shields may be connected to the same lead-in wire and insulated from the other. The shield 13 or both shields 13 and 14 are provided with radial slots 28, Fig. 3, to equalise the heating between the shields 13, 14 and 12 when they are heated by H.F. induction to remove absorbed gases. In the construction shown in Figs. 4 and 5 a single reflecting shield 14 is connected to wire 7 by tab 19 and insulated from wire 6 by glass tube 22. The wires 6 and 7 are bent outwardly at 24 and 23 and clamped over the ends of the filamentary electrode 25. Auxiliary electrodes 26 and 27 are welded each to one of the lead-in wires 6 and 7. Distances of the electrodes 11 and 25 and the shields 13 and 14 from the end of the envelope are stated. The envelope can be filled with neon at 1 mm. pressure with or without 0À04-0À2%, preferably 0À1%, by volume of argon. A helium filling is also referred to. The mercury vapour pressure is in the range of 4-15 microns when in use in an ambient temperature of 80F. in still air.
Patent GB-836618-A (GB)
Title: Improvements in telemetering systems
IPC: G01K1/02
Filed: 1957-01-16
Abstract: 836,618. Telemetering systems. BAILEY METERS & CONTROLS Ltd. Jan. 16, 1957 [Jan. 18, 1956], No. 1699/57. Class 40 (1). A telemetering system of the kind having a plurality of transmitters joined periodically by a stepping switch to a common line and thence by a second stepping switch to corresponding balanceable networks contains a common receiver circuit with means responsive to unbalance whereby each network is joined in turn to this circuit and brought to balance, and a tone generator which acts on frequency-selective devices to energize the two stepping switches. In Fig. 1 transducers 1, 2, 3, 4 responsive to physical conditions (e.g. thermocouples) are joined in turn to the transmission lines 5, 6, whereby their output voltages are fed into the circuit 20 and compared with the voltages on the sliders of the potentiometers 41 in the unit 15. The difference voltages are amplified in the unit 22 and supplied by lines 45, 46 to the motor windings 43 to effect rebalance of the circuit by adjustment of each potentiometer in turn. The position of each slider then gives an indication of the corresponding transducer output and may be used for control purposes. Switching of the transducers is effected by a constant frequency A.C. signal from the tone generator 23 interrupted by the motor-driven cam 26, the signal being applied to the relay 8 via the frequencyselective D.C. generator 9. A similar generator 24 at the receiver operates the relay 27 which via contacts 28 and relay coil 29 similarly switches the potentiometers 41 to the balancing network. At the same time the contacts 30 operate the relay 32 via a time-delay network 31 to short-circuit the output of the amplifier 22; undesirable transients generated in the balancing network due to the different time-constants of the filter. circuits 51, 52 (see below) are thus dissipated harmlessly in the resistor 33 and do not affect the motors 43. The top contact 35 of the switch 16 energizes the appropriate relay 48 and connects the amplifier 22 to the corresponding motor to rotate it through an amount depending on the difference between the voltage of the transducer and that across the potentiometer which is connected to the balancing network through the lower two contacts 36, 37 of the switch 16. When the relay 48 is deenergized its lower contacts short-circuit the motor to hold it in position. Fig. 2 shows the units 20, 21, 22 in greater detail. In 20 the diodes 145, 146 conduct on alternate half-cycles of the supply from the transformer 151 and when they are conducting allow current to flow (a) from line 6 through filter 51, primary of transformer 53 and resistor 143 back to line 5, and (b) from line 36<1> through filter 52 and resistors 144, 143 to line 6. If the potentials at 147 and 148 are different, a pulsating output appears at the secondary of transformer 53, which is amplified at 154 and 157 and supplied at 45, 46 to energize the appropriate rebalancing motor 43. Unit 21 supplies a stabilized voltage to the reference potentiometers 41.
Patent GB-196366-A (GB)
Title: Improvements in pipe and like cutters
IPC: B23D21/08
Filed: 1922-01-20
Abstract: 196,366. Jones & Attwood, Ltd., and Jones, W. Jan. 20, 1922. Pipe cutters.-In a pipe and like cutter, the cutting tool 12 is secured in an externally threaded holder 13 mounted in the head 1 and operated by an internally threaded sleeve 15 connected with and revolved by the handle 18. The tool 12 is preferably reversible, end for end, and is mounted in a slot extending throughout the length of the holder. The pipe to be cut is held between two sets of rollers 2 mounted on the head 1, and a set of rollers 7 carried by a pivoted' arm 6 adjustable by a screw 8 and wing-nut 10.
Patent GB-264853-A (GB)
Title: Signalling device for road vehicles
IPC: B60Q1/38
Filed: 1927-01-20
Abstract: 264,853. Lory, R., Winkler, A., and Streuli, E. Jan. 21, 1926, [Convention date]. Drawings to Specification. Road-traffic signals on vehicles. - A turning signal on a vehicle is given by a series of lamps extending transversely across the vehicle, being illuminated separately and in succession towards the side to which the vehicle is about to turn. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a cover moving over an illuminated slot, movement of the light along a straight or curved path; and the provision of raflectors or projectors in conjunction with the signals. This subject-matter does not appear in the Specification as accepted.
Patent GB-542720-A (GB)
Title: Improvements in hydraulic operating devices
IPC: F15B15/18
Filed: 1941-02-10
Abstract: 542,720. Hydraulic machines. BRITISH THOMSON-HOUSTON CO.. Ltd. Feb. 10, 1941, No. 1807. Convention date, Feb. 9, 1940. [Class 69 (ii)] A hydraulic operating mechanism of the kind in which tne movement of a load connected to a crosshead 18 is effected by a piston 14 in a container 10 in which is arranged a centrifugal impeller pump 22 driven by an electric motor 12 supported by the top of the container and serving to drive the shaft 31 of the pump through a coupling 35 arranged near a partition 13 of the container which marks the level of oil in the container. The piston 14 can slide over a tube 28 secured to the container and the liquid inlet for the pump passes through apertures 30 in this tube, and the outlet from the pump emerges from an annular discharge passage 20 between the parts 19a, 19b of the pump casing when permitted by a sleeve valve 36. When the motor is started up a certain quantity of the pump outlet is byepassed back to the inlet through an opening between a part 26 of the pump housing and the top of the valve sleeve 36 which is normally depressed by a spring 45 to an extent which is controlled by an adjustable screw 52 acting upon a plate connecting a pair of levers 46 having a pin-and-slot connection with a sliding member 40 connected by bolts 38, 39 to the valve 36. The action of the spring 45 makes it necessary to drive the motor to full speed before the load it applied upon raising of the valve 36 and the cutting off of the byepass action. The sleeve 36 also controls the extent of the pump outlet 20 and this outlet is greater the greater is the load, so that the device reacts automatically to the load. Upon de-energization of the motor the valve 36 closes the passage 20 and the liquid passes up the tube 28 and out of the apertures 30. The speed of the downstroke of the piston depends upon the setting of the screw 52 as the size of the byepass between the parts 26, 36 is dependent upon the setting of the screw 52.
Patent GB-1014922-A (GB)
Title: Improvements in mechanical belting
Inventor: LORD WILFRID
IPC: D03D3/00
Filed: 1961-01-17
Abstract: A belting fabric has strength warp threads 1, protective warp threads 3, a layer of weft threads 4 which form a ply solely with the protective threads 3 and a layer of weft threads 2 which form a second ply with both the strength and protective warp threads 1, 3. In a second embodiment the protective threads 3 pass through the second ply to form a third ply with a further layer of weft threads.
Patent GB-752563-A (GB)
Title: An improved process of continuous-casting
IPC: B22D41/05
Filed: 1954-01-21
Abstract: 752,563. Ladles. BOHLER & CO., AKT.- GES., GEB. Jan. 21, 1954 [Jan. 21, 1953], No. 1857/54. Class 82(1). [Also in Group XXII] A pipe-ladle for use in a continuous casting process comprises a lining 1 of basic brick and a pipe 2 of basic brick having a coating 3, e.g. of iron or ironwire gauze, to prevent the opening of cracks.
Patent GB-1246011-A (GB)
Title: Photoelectric device in a machine, adapted for measuring relative displacement of the parts of the machine
Inventor: KATSNELSON LEONID BORISOVICH
IPC: H03M1/00
Filed: 1969-01-13
Abstract: 1,246,011. Selective signalling. OSOBOE KONSTRUKTORSKOE BJURO STANKOSTROENIA. 13 Jan., 1969, No. 1893/69. Heading G4H. In a system for digitizing the position of one line 4, Fig. 1, of an etched reflective scale 1, a continuously rotating scanning plane piece of glass 8 having a reflective coating 15 over part of it, sweeps a fixed pencil of light 13, 14 across a photo-cell 17 to produce a datum pulse, and clock-pulses produced by sweeping the image of a fixed scale 12 across a second photo-cell 10 (the illuminating source for this scale not being shown) are counted, 18, until the image of the line 1 whose position is to be digitized is swept across a third photo-cell 7. The clock-pulses could be produced by inductive, capacitative, or photo-electric sensing of a scale fixed to the rotating scanning glass (Figs. 2, 3, 4, not shown). The pulses that are actually counted could be of higher frequency by using the clock-pulses to synchronize an oscillator 19.
Patent GB-137393-A (GB)
Title: An improved appliance for use in splitting or chopping wood
IPC: B27L7/06
Filed: 1919-01-27
Abstract: 137,393. Mein, T. O., and Cook, W. J. Jan. 27, 1919. Splitting; cutters.-A device for use in place of the ordinary chopper comprises an upstanding cutter 1 rigidly fixed, as by clamps 4, upon a block 3, the wood to be split being placed upon the cutter and forced down, as by a hammer blow. The cutter may be of equiangular section, each edge being a cutting edge, so that when one be. comes blunted another can readily be brought into use. The block 3 is shaped to form, with the cutter, a wedge.
Patent GB-513894-A (GB)
Title: Improvements in or relating to scaffolding and like clips or clamps
IPC: E04G7/20
Filed: 1938-01-24
Abstract: 513,894. Joints for tubes. , MILLS, Ltd., EXECUTORS OF J. and MACBETH, A. Jan. 24, 1938, No. 2222. [Class 99 (i)] [Also in Group X] A clamp for joining tubes together, end to end, comprises semi-cylindrical sleeve members 9, 10, with flanged edges, and two U-shaped clamping bands 11, 12 with clamping bolts 14 disposed across their free ends, the bands and bolts being adapted to enter slots in the flanges of the sleeve members and the bands being slotted to interfit with these flanges. An intermediate plate 17 with projections 17a to engage apertures in the sleeve members may be used to position the ends of the tubes. For allowing tubes of different diameters to be joined together, an adaptor comprising semicylindrical members 23, Fig. 7, with ribbed surfaces, may be used inside the main sleeve members.
Patent GB-694062-A (GB)
Title: Improvements in and relating to apparatus for winding up continuous webs or bands ofpaper or other material
IPC: B65H26/06
Filed: 1951-01-29
Abstract: 694,062. Printing-machines. VOKES (ENGINEERING DIVISION), Ltd., G., and CHALKLEY, A. W. Jan. 29, 1951, No. 2229/51. Classes 100(i) and 100(ii) Inking-apparatus; winding webs.-An apparatus for intermittently winding up continuous webs, comprises an intermittently rotated drum or mandrel on which the web is wound, the drum or mandrel being rotated by an oscillatable lever provided with a member bearing against the periphery of the roll being wound, so as to arrest the lever in a position according to the roll diameter, the lever being actuated through a lost-motion driving connection by a driving member to rotate the drum or mandrel, such that the throw of the lever and angle of rotation of the drum or mandrel is decreased with increase in diameter of the roll, and a substantially constant length of web is wound during each rotation of the drum or mandrel. A web 1 of paper, for example the used wipe-off paper employed in a stamping press, is wound on a core 2 fixed on a shaft 3 intermittently rotated by a pivoted lever 7, 7a oscillated by a connecting rod 10 having a slot 24 engaging a pin 25 on the lever 7. The arm 7a of the lever is connected by a link 11 to a pawl lever 12 pivoted on a spring- urged ratchet lever 13 rotatable on the shaft 3, the lever 12 having a nose 17 engaging a friction ring 18 secured to the shaft 3, such that the shaft 3 is driven counterclockwise when the lever 7, 7a is oscillated. A weight 20 engaging the periphery of the roll being wound limits the amplitude of oscillations of the lever, such that as the diameter of the roll increases so the angle of rotation of ratchet lever 13 decreases to decrease the length of web wound at each oscillation until the roll attains a predetermined diameter when the pin 25 ceases to be operated by the rod 10 during its downward stroke. Alternatively, the shaft 3 may be driven intermittently by a fine toothed ratchet wheel and a pawl instead of the friction ring 18 and a pawl lever 12, while in either case the ratchet wheel or friction ring may be mounted on a shaft carrying stepped pulleys which drives the shaft 3 through a belt engaging a stepped pulley on the shaft 3. In a modification stated to wind a more constant length of web at each actuation of the rod 10, the lever 7, 7a is replaced by a lever having a curved cam slot engaged by a roller carried by a pawl lever engaging a friction ring secured to the shaft 3, or a roller carried by a lever which actuates a lever carrying a pawl co-operating with a ratchet wheel on the shaft 3.
Patent GB-538721-A (GB)
Title: Improvements in hard alloys
IPC: C22C29/06
Filed: 1940-02-06
Abstract: 538,721. Alloys. BRITISH THOMSONHOUSTON CO., Ltd. Feb. 6, 1940, No. 2258. Convention date, Feb. 7, 1939. [Class 82 (i)] A hard sintered alloy consists of a refractory carbide, such as tungsten carbide, bonded with an alloy of silver or gold with one or more platinum group metals, particularly platinum of palladium, for an example an alloy of equal proportions of silver and palladium. The precious metal alloy may comprise 85-95 per cent. of silver or gold and 5-15 per cent. of the platinum group metal. The Specification as open to inspection under Sect. 91, describes also an alloy consisting of tungsten carbide, silver, and nickel. This subject-matter does not appear in the Specification as accepted.
Patent GB-607036-A (GB)
Title: Improvements in and relating to centrifugal pumps
IPC: F04D29/20
Filed: 1946-01-23
Abstract: 607,036. Securing impellers on shafts. MILLINGTON, W. E. W. Jan. 23, 1946, No. 2273. [Class 80 (ii)] In a centrifugal pump having a single impeller rotatable in a casing adapted to be opened for removing the impeller, the impeller 2 is mounted on the overhung end of a driving shaft 1 by an axial sliding movement, the shaft 1 and impeller 2 having interengaging means to form a driving connection and the hydraulic axial thrust on the impeller 2 during operation being in the same sense as the axial sliding movement. The driving connection may be formed by the pin 5 secured in the shaft 1 engaging the slot 7 of the impeller spigot 4. Alternatively, keys or splines may form the driving connection.
Patent GB-1385053-A (GB)
Title: Rotary drive controls
IPC: B41F33/16
Filed: 1972-01-18
Abstract: 1385053 Automatic control of speed MASSON SCOTT THRISSELL ENG Ltd 18 Jan 1973 [18 Jan 1972] 2329/72 Heading G3R The speed of rotation of a first member which runs at a non-uniform speed is made equal to that of a second member over part of a revolution of the first member by detecting the difference in the speeds over the part revolution and adjusting the speed of the first member accordingly. The application relates to the control of a rotary knife cutting a continuously fed paper web into predetermined lengths and the adjustment is made by altering the eccentricity of the crank driving the knife roller. The web speed and the knife speed can be detected as digital signals, Fig. 2 (not shown), or as analogue signals, Fig. 3 (not shown), and the detectors are switched on by a trip mechanism 53, 52 so that the measurement is taken over the cutting zone alone. In the embodiment shown, separate motors 60, 61 are used to drive the draw rolls and cutting knives respectively and their speeds are measured by tacho-generators 62, 63. Over the cutting period the voltages are compared in comparator 64 and the difference signal used to alter the variable speed gear 65. The ratios of the average angular velocities of the drives can be compared and the speed of motor 60 adjusted to give the required sheet length as set in control circuit 68.
Patent GB-680405-A (GB)
Title: Improvements in vehicle bodies having opening roofs
IPC: B60P3/42
Filed: 1951-01-30
Abstract: 680,405. Animal carrying trailer vehicles with sliding roofs. DELANNOY, A. Jan. 30, 1951 [Jan. 31, 1950], No. 2340/51. Class 108 (i). A wheeled trailer for the transportaion of goods or animals comprises a body including a floor, two lateral walls and a front wall rigid therewith, a rear wall pivotally secured to the rear edge of the floor and adapted to form a runway in its collapsed position, and two longitudinally extending roof elements adapted to be shifted between a position in which they lie side by side in interengaging relationship, each to cover one half of the body and a substantially vertical position alongside the corresponding side wall, projections on the outer edges of the roof elements, vertical guiding means rigid with the side walls engaging said projections and means adapted to hold the roof elements in either of the defined positions. Each side panel 3, 3a carries at its ends vertically slotted members 5 each of which guides a pin 6 attached to the front or rear outer margins of one of a pair of movable roof panels 7. In the closed position the panels 7 abut on the longitudinal axis of the vehicle and when open they lie on the outside of the appropriate wall 3 or 3a, the upper edge of which is recessed to engage pins 8 secured to the underside of the panel 7. The panels may be clamped in the open or closed positions by a knurled nut mounted on the end of each pin 6. The rear end panel 11 is pivotally mounted at its lower edge by pins 14 which engage slotted elements 15 on the side walls and the panel 11- is provided with projections 10, 16 which engage brackets 9, 17 in the raised position. Handles are attached to the panels 7 and 11 and the panel 11 and the rear end of the floor 2 carries support brackets which engage the ground when the panel 11 is lowered.
Patent GB-224130-A (GB)
Title: Improvements in and relating to fire-lighters
IPC: C10L11/04
Filed: 1924-07-21
Abstract: 224,130. Hedberg, C. H., (Hedberg, J. A. A.). July 21, 1924. Composition fuel.-A fire-lighter consists of a moulded mixture of peat in granular condition, small coal or slack, Stockholm or coal tar, and paraffin wax. In an example the composition of the mixture is 15 per cent of peat, 15 per cent of coal, 45 per cent of tar, and 25 per cent of paraffin wax. The fire-lighter may take the shape of a match-box or of blocks or cylinders or consist of a portion of a rod or bar which is weakened at intervals to facilitate breaking.
Patent GB-959879-A (GB)
Title: Arrangement in mines for associating a face conveyor with a roadway conveyor
IPC: B65G37/00
Filed: 1963-01-21
Abstract: 959,879. Endless conveyers. GEWERKSCHAFT EISENHUTTE WESTFALIA. Jan. 21, 1963 [July 27, 1962], No. 2501/63. Heading B8A. An arrangement in mines for communicating the end of a face conveyer 7 projecting into a roadway 1 with a roadway conveyer 20 comprises an intermediate twin chain scraper conveyer 9 which at its receiving end, bears on the floor under the projecting end of the face conveyer 7 and at its discharge end 21, is suspended over the roadway conveyer 20 by means of a monorail overhead conveyer 14. The receiving end of the intermediate conveyer 9 is connected, so as to be longitudinally displaceable and/or lockable to the floor bar of an hydraulic roof support frame 5 which supports the end of the face conveyer 7. Under normal working conditions material is discharged from the intermediate conveyer and on to the roadway conveyer 20 at an intermediate discharge point approximately on section line A-B where bottom plates of the conveyer 9 are slidably removed. Over the elevating portion of the conveyer 9, the lower run 23 of the conveyer is spaced from the upper run by means of connecting webs 24. when, however, the roadway conveyer 20 is immobilized, the bottom plates of the intermediate conveyer 9 are replaced, the discharge end 21 is closed by detachable shields and the conveyer speed is reduced thus utilizing the suspended portion of the conveyer 9 as a storage bunker. Side shields may be provided to increase the bunkering capacity. The said suspended portion may have an independent conveyer which may be either of the scraper chain or vibrating type. It is desirable to have the intermediate discharge point of the intermediate conveyer 9 at the highest possible level and the discharge end 21 at the lowest possible level to aid the bunkering operation. Driving means for the intermediate conveyer 9 are disposed at the discharge end 21 and additionally on the webbed section 24.