baber/WOPTO huggingface dataset:
Patent GB-1404135-A (GB)
Title: Telescopic structures particularly tower cranes
IPC: B66C23/42
Filed: 1972-03-16
Abstract: 1404135 Mobile tower cranes GENERAL CRANE INDUSTRIES Ltd 3 Nov 1972 [4 Nov 1971 16 March 1972] 51288/71 and 12480/72 Heading B8B In a method of erecting a telescopic structure such as a tower by means of an hydraulic piston and cylinder arrangement the structure is extended by supplying fluid at a first pressure to the cylinder and, when the structure has been extended thereby to an extent predetermined by wedging means, maintaining a fluid pressure in the cylinder at a higher pressure than the first pressure and adequate to maintain the structure in tension under any load carried by the structure in operation. As shown a crane includes a telescopic tower 12 extended by a multi-section hydraulic cylinder 30. A turntable 20 on top tower section 12d carries an operator's cab 21 and a telescopic jib 24 mounted for luffing by cylinders 25 on a platform 22 tiltable about a horizontal axis 22a by a cylinder 23. By operation of the cylinders 23, 25 30 and a pair of cylinders 18 the tower 12 and the jib 24 can be collapsed on to a trailer 10 for transport, the tower 12 being pivoted about bearings 14 to lie horizontally, Fig. 2 (not shown). In use the tower 12 is maintained extended by fluid pressure applied to the cylinder 30 in excess of the pressure required to sustain the total weight of the movable tower sections and parts carried thereby, including the maximum permitted load, thus maintaining the tower 12 in tension. Extension of the sections of the tower 12 is limited by interengaging means with a wedging effect on adjacent sections. As shown in Fig. 4 these means, between sections 12b, 12c are wedges 40b, 40b<SP>1</SP>, at the top of the section 12b, co-operating with mating wedges 41c, 41c<SP>1</SP> at the bottom of the section 12c, and also act to give lateral stability to the tower 12. Safety latches, such as 47, may be moved into position between adjacent tower sections to prevent collapse of the tower 12 in case of failure of the cylinder 12 or of the fluid pressure supply.
Patent GB-418460-A (GB)
Title: Improvements in or relating to steam turbines
IPC: F01D25/32
Filed: 1933-04-29
Abstract: 418,460. Steam - turbine blading. GORDON, S. H., 2, Rose Street, Inverness. April 29, 1933, No. 12514. [Class 110 (iii).] Scoop-shaped blades for the collection of water particles in steam are interspersed with ordinary blades. The edges of the collector blades may project beyond the plane containing the front edges of the normal blades. The water passes out of the blade tip to a collector ring or channel in the casing which may discharge through valves. The water may be discharged to a feed system.
Patent GB-1523641-A (GB)
Title: Adaptive equalisers for phase modulation data transmission systems
IPC: H04L25/03
Filed: 1976-04-29
Abstract: 1523641 Adaptive equalizers PLESSEY CO Ltd 29 April 1976 [26 March 1975] 12558/75 Heading H4R An adaptive equalizer for use in a receiver of a phase modulation data transmission system, e.g. using four phase PSK signals, comprises means for driving in phase and quadrature signals from the incoming signal waveform, means for sampling the derived in-phase and quadrature signals at intervals of T seconds where T is the data symbol period, means of displacing said in-phase and quadrature signal samples with respect to each other by a period of T/2 and for interleaving them into a serial stream (all the above means being illustrated in Fig. 1 (not shown), and employing conventional circuitry) and a baseband adaptive equalizer (Fig. 2). The equalizer comprises a delay line DL including a main tap a 0  and further taps a -6  to a +6 , the taps being subject to successive delays of T/2, and the signal samples are checked through the delay line at intervals of T/2. The main tap is connected via fixed gain amplifier PSA to summer SN, and alternate taps constituting a first set via variable gain amplifiers VGA-VGF to the summer. The remaining taps are each connected to two variable gain amplifiers via respective switches ES1-ES6, which may be electronic, such that in one state of each switch the amplifiers VGG-VGL are connected to particular taps directly whereas in the other position of the switch the amplifiers are each connected to the next preceding alternate tap via an inverting device. The arrangement is such that when an in-phase sample is present at the tap a 0  the switches are in the positions shown, and the arrangement acts to perform substantial equalization of in-channel distortion and cross channel distortion for the inphase signals. For a quadrature sample at tap a 0 , the switches are in the second positions and the quadrature samples are subject to equalization. For a detailed description of the operation attention is directed to the specification. The arrangement is also applicable to multiple phase, multiple-amplitude modulation systems.
Patent GB-423394-A (GB)
Title: Improvements in relaxation oscillation generators
IPC: H03K4/86
Filed: 1933-05-01
Abstract: 423,394. Valve generating circuits. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, and SCHLESINGER, K., 39, Friedrichstrasse, Friedrichshagen, both in Berlin. May 1, 1933, No. 12578. Convention date, June 1, 1932. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 3, 1933.] [Class 40 (v)] Relates to grid-controlled glow-discharge relaxation-oscillation generators used for controlling the scanning frequencies in television. According to the invention the period of discharge is kept constant by inserting a resistance in the discharge circuit of the grid-controlled discharge tube. In addition an auxiliary control voltage may be applied to the grid of the discharge tube as described in Specification 423,583. The generating tube 1 is charged through a screen-grid valve 38, the control potential of which is tapped off from a potentiometer 25 in the H.T. supply network. The synchronizing signals are applied to the grid of the discharge tube 1 from the terminal 31 together with a control bias from a resistance 21. The tilting oscillations are produced by the discharge of the condensers 17, 18, or 19, through the discharge tube 1 and a series resistance 28, and are fed to the cathode ray tube via the terminals 29, 30. The frequency of the oscillations is controlled by the resistance 28, and by the choice of the condensers 17, 18, and 19. The oscillator is contained in a screening case, and the circuit components are also individually screened, as shown in dotted lines.
Patent GB-1008910-A (GB)
Title: A device for the sequential assembly of small-sized apparatus such as watch movements, microswitches, voltmeters, ammeters and the like
IPC: H01K13/00
Filed: 1964-03-25
Abstract: 1,008,910. Conveyers. LANGENDORF WATCH CO. March 25, 1964 [April 2, 1963 (2)], No. 12663/64. Heading B8A. In the conveyer for presenting watch movements, micro-switches, voltmeters etc. for repair, and returning them thereafter to a casing in order to protect them from dust, as described in Specification 945,230, friction between the moving supports and the fixed casing generates an electrostatic charge which attracts dust particles. The supports may be of nylon, the platform of a synthetic resin, and the cover of the housing or casing of " Plexiglas " (Trade Mark). The cover may be coated with an antistatic paste. The surfaces it is desired to be charged may have a coating of adhesive material in order to retain the dust.
Patent GB-551347-A (GB)
Title: Electrically operated indicators or scoring devices for game apparatus
IPC: A63F1/18
Filed: 1941-10-01
Abstract: 551,347. Lamp indicators for indoor games. STAMPER, S. W. Oct. 1, 1941, No. 12676. [Class 40 (i)] A game on the " snakes and ladders " principle is played by propelling a ball &c. towards a target which is arranged to send a number of impulses, depending on the point of impact, to a relay Z, Fig. 1, which repeats them to a step-by-step switch controlling a lamp indicator having a face as shown diagrammatically in Fig. 2. If the switch is set to a position corresponding to the foot of a ladder or head of a snake, it advances automatically or otherwise changes its condition to a position or condition corresponding to the top of the ladder or the tail of a snake. In the arrangement shown, the bamps and wipers 1 to 4 are operative in succession to control marking relays which control the automatic stepping with the help of a further bank and wiper 5. When wiper 1 reaches its 25th position it energizes A which holds on after the wiper has moved on long enough for the energization of B which locks up, disconnects wiper 1 from the supply wire and connects up wiper 2 instead. Similar means are provided for transferring control from wiper 2 to wiper 3 and so on. If an active wiper comes to rest on a contact connected to a relay such as AA, AB &c., this relay, which is too sluggish to pull up when its circuit is made momentarily, pulls up and either makes a driving circuit for the switch over wiper 5 and disconnects battery from one of the terminals in bank 5 to cause the switch to stop in that position, or transfers control from the active wiper to some other wiper or effects both these operations. When the last contact in bank 4 is reached, relay G rings a bell and lights a special lamp and, where several indicators are associated for competitive use, energizes a relay M to disconnect the battery from the other indicators. The switch is sent home by operating a relay H by means of a manual switch.
Patent GB-169131-A (GB)
Title: Improvements in cocks and valves
IPC: F16K43/00
Filed: 1921-05-04
Abstract: 169,131. Aass, H. May 4, 1921. Closure members. - In a valve or cock provided with a main valve member and an automatic valve member which closes the passage when the main valve is removed, the automatic valve 1 is formed as a cup-shaped member which is passed through the seat opening 4 and is then expanded at the rim to form the valve facing. For this purpose, the casing may be formed with a conical projection 5 upon which the cup-shaped member is forced by a tool. When the supply passage is disposed coaxially with the valves and underneath them the automatic valve is guided in the supply passage by means of ribs formed therein.
Patent GB-485811-A (GB)
Title: Improvements in or relating to latching mechanisms for electric circuit interrupters
IPC: H01H71/50
Filed: 1937-05-05
Abstract: 485,811. Automatic circuit-breakers. WESTINGHOUSE ELECTRIC & MANUFACTURING CO. May 5, 1937, No. 12815. Convention date, May 14, 1936. [Class 38 (v)] A quick-acting latching member for a circuitbreaker having an operating mechanism biassed to open-circuit position for effecting a switching operation comprises a member for releasably engaging a trip-free element of the operating mechanism to retain it in a predetermined position, a spring-biassed arm disposed for co-operative engagement with the said member and effecting a partial balancing of the reactive pressures from the biassed operating mechanism, and a latch for locking the arm to lock the said member thereby to retain the trip-free element in the predetermined position. The contact-operating rod 16 is pivoted at 20 to a floating member 18 comprising a pair of levers interconnected by a bar 52 and carrying between them a trip-free bar or roller 22. The member 18 nests within, and is pivoted at 26 to, a pair of levers 24 which are interconnected by a bar 54, pivoted to the frame at 28, and connected by link 46 to a closing magnet. When a latch 34 engaging the pivot 26 is deflected, a spring 30 rotates levers 24 clockwise about pivot 28. In the closed position, the roller 22 is in alignment with the pivots 28 and is engaged by a spring-loaded member 56 pivoted at 58. Member 56 is retained in engagement with roller 22 by an arm 66 which is pivoted at 68 and urged by springs 74, 76 so that a notch 70 thereon engages a surface 72 on member 56. The springs 74, 76 are not strong enough to retain 66 and 56 in engaging position, and accordingly they are latched by a part 80 on a bell-crank 82, which is pivoted at 84 and biassed by the spring 76. The latch 80 is trippable by the solenoid-plunger 89, which not only deflects 80 clear of arm 66, but brings a part 88 on the latch-member against a part 90 on the arm 66, so positively removing the latter from engagement with member 56, and permitting the opening force on the contacts to deflect member 56. During the opening movement of 18, a member 36 thereon engages a member 38 on the latch 34, so releasing the levers 24. Spring 30 accordingly rotates levers 24 to the dotted position, and in doing so restores the lever 18 and roller 22 to the latched position. Energization of the closing magnet then rotates 18, 24 counterclockwise about pivot 28 so that the parts are re-latched at 26, 34. The roller 22 is guided in its movement to latched position by the surface 103 of a spring- controlled member 104 pivoted at 106. During the trip movement, the spring 110 overcomes spring 60 and forces the member 56 against a stop 112, so preventing member 56 from engaging the roller 22. The plunger 89 is also adapted to be manually raised by means of a spring- controlled trip lever 92 which actuates the plunger by means of an intermediate member 98 resting on a guide-bolt 100 for the handle.
Patent GB-329132-A (GB)
Title: A flexible roller, or idler, with bearings and lubricators combined for use in operating belt conveyors
IPC: B65G39/06
Filed: 1929-04-25
Abstract: 329,132. Fisher, G. J. April 25, 1929. Idler rollers and troughing - rollers for belts.-An idler roller of the kind comprising a spiral spring supported at each end in bearings has the bearing devices arranged to permit universal angular movement within limits. In one construction each end of the spring 1 is attached to a bolt; 2 the extremity of which is formed with a ball 6 co-operating with a seating 7 in the bearing 8. A flange 14 on the bearing 8 engages with the outer side of the framework 15 of the conveyer. The framework may be,slotted so that the bearing devices may be slid into position from above. Flats may be formed on the bearing devices to prevent rotation. The outwardly extending portion 16 of the bearing device preferably is screw-threaded for the attachment of a cap 17 for the reception of grease or other lubricant. The spring may be coated or covered with or enclosed in rubber or other flexible material. In a modification, the end of the bolt is fitted with a hemispherical member 9, Fig. 2, co-operating with a ball-bearing 10 located in a recess 11 in the bearing device 8.
Patent GB-465689-A (GB)
Title: Improvements in electric batteries and connectors therefor
IPC: H01M50/55
Filed: 1936-05-07
Abstract: 465,689. Batteries; two-part couplings. BALBI, C. M. R. May 7, 1936, No. 12902. [Classes 38 (i) and 53] A battery is provided with strip terminals 2, 3 above which is a sheet of cardboard or other insulating material 4 having elongated slots 5, 6 to receive connectors 8, 9. The battery is provided with a paper covering 7 which has slots registering with the slots 5, 6. Each connector consists of a metal part 9 soldered to a wire 12, the joint being covered with binding material 13 which may be coloured to denote polarity. The connectors are bent as shown at 10 and when inserted in the slots 5, 6 they make contact with the upper surfaces of the terminal strips. In a modification shown in Fig. 3, the terminal strips are doubled back upon themselves and the connectors are inserted between the two parts of the strips.
Patent GB-267756-A (GB)
Title: Improvements in typewriting machines
IPC: B41J11/14
Filed: 1926-05-20
Abstract: 267,756. Myers, L. C., and Royal Typewriter Co., Inc. May 20, 1926. Carriage-shift mechanism; paper-carriages; shift-key actions. - In type-lever machines in which adjustment of the platen with reference to the printing plane is effected by adjusting the carriage-shift frame, the shift-key devices and in some cases the locking-devices and counterbalancing-spring also are adjustable with the carriage-shift frame as a unit. In the portable machine shown in Fig. 1, a carriage-shift frame consisting of pairs of rocking arms 8, 20 pivoted to the bed 7, 19 of the carriage 1 is supported by two side plates 44 each having ears 24 formed on a cross-piece 22, and a screw 45, the ears and screws engaging inclined slots 23, 46 in the framework A. A rocking frame 14, mounted on a shaft 48 connecting the side plates 44, is provided with shift keys 16 and is connected by a link 12 to a depending part 10 of one of the arms 8. The arms 8 are secured to a shaft 9 provided with adjustable cones 27, Fig, 5, engaging sleeves 28 on the cross-pieces 22, and the arms 20 rock on screws 21 threaded into sleeves 25 on the side plates. The side pieces are secured by means of screws 26, 29 which pass through short slots in the framework and are threaded into the sleeves 25, 28. On releasing the screws 26, 29 the side plates can be moved backwards or forwards to adjust the platen with reference to the printing plane, the carriage-shift frame and shift keys moving with the platen as a unit. The printing plane is determined by a stop E in the path of the type-levers C. For fine adjustment there may be provided screws 32, Fig. 3, passing through ears 31 in the framework A and threaded into ears 30 on the side plates 44; or the screws may be threaded into the ears 24. The side plates are provided with screws 37, 38 co-operating with ears on the members 19 to limit the shift movements. Counterbalancing springs 62 are connected to the arms 8 and the cross-pieces 22 of the side plates 44. Key locks.-One of the side plates 44, Fig. 1, is provided with a pin 49 co-operating with the shift-lock key 17. The rocking frame 14 and the shift-lock key may be connected to a rocking hook and a rocking arm which are mounted on the side plates 44 and are adapted to lock the carriage-shift frame in the normal and shift positions respectively.
Patent GB-1002354-A (GB)
Title: Improvements relating to the manufacture of garments made of elastic fabric
Inventor: FRITH GEORGE ALFRED
IPC: A41D13/12
Filed: 1962-04-04
Abstract: Garments e.g. surgical hose, swim suits, corsetry, are made by forming a uniformly shaped article composed of elastic threads containing at least 85% by weight of segmented polyurethane, fashioning the uniformly shaped article into a desired shape on a former and heating the fashioned article while still on the former to set the fashioned shape.  The polyurethane threads preferably have a covering of nylon yarn.
Patent GB-575023-A (GB)
Title: Improvements in wave guides for high frequency electric currents
IPC: H01P3/14
Filed: 1944-07-06
Abstract: 575,023. Wave guides. CALLENDER'S CABLE & CONSTRUCTION CO., Ltd., HOLLINGSWORTH, D. T., and MORLEY, C. W. J. July 6, 1944, No. 12969. [Class 40 (v)] A rectangular wave guide comprises a tube 1 of fine mesh wire fabric held yieldingly in shape by an external covering 6 of vulcanized rubber or equiva-, lent material, The fabric is so constructed that neither of the two interwoven set of wires makes an angle of about 0 degrees or 45 degrees with the axis of the guide. Preferably they make an angle of 60 degrees or 30 degrees if they are at right angles, or they may both make an angle of 60 degrees. This provides uniformity of flexibility with a minimum of distortion. The guide mesh 1 is connected by metal tubes 3 to unions 4 and 5 for connection to other guides or apparatus.
Patent GB-1471056-A (GB)
Title: Process and apparatus for continuously casting metals
IPC: B22D11/04
Filed: 1974-03-22
Abstract: 1471056 Continuous casting TECHNICON INSTRUMENTS CORP 22 March 1974 [22 March 1973] 12970/74 Heading B3F  The external shell surface of a partially solidified continuous casting 46 is intermittently compressed in the direction of casting and perpendicular to said direction. This is achieved periodically by the longitudinal oscillation of a mould 26 which has a taper, of at least part of the mould cavity, in a direction opposite to that of casting, the speed of the mould, due to the oscillation, in the direction of casting being faster than the rate of issue of the casting from the mould so that the tapered wall abuts the casting surface during the advance of the mould, to apply the compressive forces. Downstream of the taper, the mould wall may be untapered, or tapered in the direction of casting, or have these forms consecutively. Instead of an open-ended mould, a mould with a closed end may be used as described in Specification 1,316,607. The mould 26 is oscillated by an air cylinder or a crankwheel 52, Fig. 5. A link 56 from the wheel 52 to a bracket 58 on the mould includes a pneumatic cylinder 64 and piston 68. Compressed gas is supplied through a regulator 74 so that pressure in the cylinder 64 is constant irrespective of the piston position and it forms an air spring. When the casting withdrawal speed is increased, the speed of oscillation is increased. The resistance of the casting to compression by the mould taper may slow the mould speed forward and cause displacement of the piston 68 as indicated. As shown in Fig. 3, an open-ended mould 26 is fed from a tundish 10 by a tube 14 and a boron nitride sleeve 22 secured by keys 24 in a watercooled copper collar 16 fastened by bolts 18 to the tundish. The mould 26 slides on bearings 32 of the copper collar 16. Spring-biased sealing segments 36 of boron nitride or graphite allow hot gases but not metal to escape rearwardly.
Patent GB-632329-A (GB)
Title: Improvements in or relating to the separation of air
IPC: F25J5/00
Filed: 1947-05-14
Abstract: 632,329. Separation of air. BRITISH OXYGEN CO., Ltd., SCHUFTAN, P. M., and ROBERTS, N. W. May 14, 1947, Nos. 12976/47 and 4086/48. [Class 8(ii)] An air separating process comprises cooling compressed air in alternating heatexchangers 1a, 1b, Fig. 1, conditioning, e.g., by adiabatic expansion in a turbine 10 to form a saturated oxygen rich vapour, feeding such vapour to a single rectification column 11 and using for boiling and reflux therein at least a - portion of the nitrogen gas separated either in the column 11 or in the conditioning apparatus. Nitrogen gas from the top of the column 11 traverses undercoolers 12, 13, exchangers 1b, 5b being cooled, a compressor 14, coolers 5a, 6a, and the rectification column boiler to pass to the top of the column as reflux. The turbine 10 may be 'replaced by an enricher 15, Fig. 2, where the air is partially separated, the oxygen rich liquid fraction being expanded through a valve 16 into a coil wherein it is vaporized in counter current to its own vapour and is then fed into the rectification column 11. The nitrogen from the top of the "enricher" is compressed at 18, cooled, traverses the boiling coil and is then used as reflux. In a modification nitrogen from the column 11 prior to its passage through the boiler is compressed by a jet pump operated by nitrogen leaving the regenerator 1b and afterwards being compressed to 200 atmospheres.
Patent GB-1216453-A (GB)
Title: Improvements in and relating to composite articles
Inventor: HABGOOD ROBERT P JR
IPC: B05D7/06
Filed: 1969-03-12
Abstract: 1,216,453. Moulding foamed coated articles. PLEXOWOOD Inc. 12 March, 1969 [28 Aug., 1968], No. 13071/69. Heading B5A. [Also in Division A4] Articles comprising a central wood-resin core and a foamed resin coating having an external non-pervious skin, are made by applying a formable resin to the core and foaming the resin in a mould larger than the core by the thickness of the desired coating. The skin may be formed by a non-foamed outer portion of the resin coating or by applying a sheet, such as a melamine resin sheet, to the resin before foaming. The foaming resin may be a urethane, or epoxy, or a styrene resin. In the particular examples, chair seats are made.