baber/WOPTO huggingface dataset:
Patent GB-793946-A (GB)
Title: Improvements in or relating to the purification of naphthalene
Inventor: STARK ARTHUR MCGREGOR
IPC: C07C7/14
Filed: 1954-09-15
Abstract: Crude naphthalene is purified by heating it to a temperature above its melting-point, agitating with water, allowing slow cooling and recrystallization of the naphthalene, draining off the water, passing steam and warm air through the re-crystallized naphthalene and drying it.  Preferably the steam and warm air treatment is performed in a centrifuge, the steam being injected through a number of specially distributed small jets.  During the steam treatment the naphthalene may be treated with water sprayed through a sprinkler jet.  The inside of the casing of the centrifuge may be fitted with a steam heater consisting of several turns of copper tube.
Patent GB-1503966-A (GB)
Title: Low pressure mercury vapour discharge lamp with amalgam
IPC: H01J61/72
Filed: 1975-06-24
Abstract: 1503966 Metal-vapour lamps PATENTTREUHAND - GES FUR ELEKTRISCHE GLUHLAMPEN mbH 24 June 1975 [1 Aug 1974] 26797/75 Addition to 1471454 Heading H1D In a low pressure mercury vapour discharge lamp, e.g. a fluorescent lamp, containing the amalgam-forming metals indium, magnesium and tin, the magnesium component comprises 5-50 mol per cent and the tin component 1-40 mol per cent of the total amount of amalgam forming metal. The addition of tin, in the proportion specified, to the particular amalgam of the parent Specification 1,471,454 enables the amount of indium required to be reduced by 60%; thus as in total less amalgam-forming metals are required they may be provided as a coating on one stem only of the lamp. Preferably the molar ratio of amalgam-forming metals to mercury is in the range 20 : 1 to 1 : 1, and in an example given the amalgam has the composition Hg 1 In 4 Mg 0À67 Sn 0À45 .
Patent GB-828194-A (GB)
Title: Captive screw fasteners
Inventor: READ MARK AMBROSE
IPC: F16B39/32
Filed: 1955-09-20
Abstract: 828,194. Screw fasteners; anchor-bolts. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Dec. 20, 1956 [Sept. 20, 1955], No. 26832/55. Addition to 761,655. Classes 44 and 89(1) The fastener of the parent Specification is modified in that upon the screw being fully retracted, it is arrested to avoid i imparting to the housing an excessive thrust in an axial direction away from the structural unit by which it is carried. In the arrangement shown, a circlip 23 or the like is located in the housing 10 and is formed with an upturned end 24 which co-acts with ratchet teeth 22 provided on the 'end face of the screw head to prevent rotation of the screw beyond that necessary for full extraction of the screw thread from a threaded bush 4 associated with a structural unit 2. A spring 18 which biases a threaded washer 6 into engagement with the other unit 1 is turned inwardly through one of two slots 17 on the housing to form a detent 21 which engages a milled edge of the screw head to retain the screw against rotation by vibration. A spring-loaded plate 26 normally closes a recess 25, at the leading end of the screw and by which the screw is rotated by means of a tool A. In a modification, Figs. 3 and 4 (not shown), the ratchet teeth and circlip are replaced by a coil spring which is located in an extension of the housing. The screw head may be provided with a tool receiving recess in addition to or instead of the recess 25.
Patent GB-680389-A (GB)
Title: Improvements relating to the construction of motor vehicle bodies
IPC: B62D25/04
Filed: 1950-11-03
Abstract: 680,389. Road vehicle bodies. BARENYI, B. Nov. 3, 1950 [Jan. 8, 1949; Feb. 19, 1949; March 4, 1949], No. 26926/50. Class 108 (i). A road vehicle body is characterized in that the roof 6 is supported from the chassis 8 by a U-shaped member 4 which may be secured to the roof 6 at 5a in a pivotal manner. The member 4 may have attachments to support the doors and may also form an integral part of the body as shown in Fig. 5. The roof and windscreen may be formed integrally and of flexible transparent material.
Patent GB-490485-A (GB)
Title: Superheterodyne radio receiving systems for receiving two signals with a single antenna
IPC: H01Q5/00
Filed: 1937-10-05
Abstract: 490,485. Wireless signalling. LORENZ AKT.-GES., C. Oct. 5, 1937, No. 26963. Convention date, Oct. 7, 1936. [Class 40 (v)] To enable a superheterodyne receiver to receive signals simultaneously on two wavelengths, the intermediate frequency is arranged to be the same frequency as that of the wanted transmission and a single aerial is coupled to both the heterodyning part of the receiver and the i.f. amplifier. As shown the heterodyning part 1 of the receiver is coupled to aerial A by coupling 4, the i.f. signals being fed to the i.f. amplifier 2. The aerial is also coupled to the i.f. amplifier directly by coupling 5 through rejector device 3 which is provided to prevent back-coupling. The apparatus is intended to be used for the receipt of distress signals, the intermediate frequency being equal to that on which distress signals are broadcast.
Patent GB-749437-A (GB)
Title: Improvements in or relating to micromanipulating devices
Inventor: MAY KENNETH ROWLAND
IPC: B25J7/00
Filed: 1952-10-27
Abstract: 749,437. Microscopes. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Oct. 19, 1953 [Oct. 27, 1952; April 11, 1953], Nos. 26976/52 and 9917/53. Class 97 (1). In a micromanipulator in which the movement of a control member is transmitted hydraulically and on a reduced scale to a manipuiating member moved in the field of a microscope and carried by a head adapted to be supported by the microscope. Movement of the member in one plane is effected by a pair of bellows connected to and moved by the control member and hydraulically connected to corresponding bellows mounted in the head. As shown, the head comprises a tubular arm 57 held on the microscope by a clamp 58 and supporting a column 56 carrying a frame 32 supporting three bellows 31, 31<SP>1</SP> and 56 arranged to be mutually perpendicular. The bellows are all connected at one end to a block 34 supporting the manipulating member 37, e.g. a needle. Movement of the needle in a horizontal plane is effected by the bellows 31, 31<SP>1</SP> connected by flexible tubing 28, 28<SP>1</SP> to corresponding bellows 25, 25<SP>1</SP> on the control system, one end of each of the bellows 25, 251 is fixed, while the other end is connected by a spring strip to a sleeve 20 on a control lever 1 pivoted to the base 17 of the control system by a ball-and-socket universal joint 13, 14. Movement of the lever 1 about the joint causes corresponding movement of the bellows 25, 25<SP>1</SP> and thence of the bellows 31, 311 and of the block 34. The scale of the movement of the member 34 may be varied by adjusting the position of the sleeve 20 on the lever 1 to vary the distance between the front 13, 14 and the point of attachment of the bellows 25, 25<SP>1</SP>. Vertical movement of the block 34 is effected by a sleeve 2 sliding on the lever 1 and connected to a piston carried within the lever. The piston is connected by flexible tubing 52 to the bellows 54 connected to the block 34. Coarse adjustment of the bellows 31, 31<SP>1</SP> and 54 is effected respectively by adjustable plungers 42, 42<SP>1</SP> and 48 connected respectively to further bellows within housings 41, 411 and 46, these bellows being connected respectively to the tubings 28, 28<SP>1</SP> and 52. Alternatively, coarse adjustment may be effected by an additional system of pivoted lever and bellows similar to the lever 1 and bellows 25, 25<SP>1</SP> and connected to the tubings 28, 281 and 52.
Patent GB-337522-A (GB)
Title: Improvements in flexible pipes or conduits
IPC: F16L11/18
Filed: 1929-09-05
Abstract: 337,522. Barlow, E. Sept. 5, 1929. Hinge and swivelling joints.-A flexible pipe is formed of a series of tubular members 1 each of which is preferably of conical shape and has an outwardly directed flange 2 at the smaller end and an inwardly directed flange 3 at the larger end, the smaller end of the member being adapted to fit into the larger end of the adjacent member with the flanges abutting against each other. The flanges are of helical form and are each provided with a gap 4 so that when brought together they may interengage by relative rotation. The invention is particularly applicable to the suction pipes of grain &c. conveyers, the pipe formed as above being enclosed in an outer casing of flexible material.
Patent GB-739272-A (GB)
Title: Improvements in or relating to endless chains
Inventor: SUCKLING LEONARD JAMES
IPC: B65G17/42
Filed: 1952-10-28
Abstract: 739,272. Chains. BABCOCK & WILCOX, Ltd. Oct. 28, 1953 [Oct. 28, 1952], No. 27116/52. Class 24 [Also in Group XII] An endless chain comprises links formed by side members 2 and 3 connected by a bush 4 provided at each end with an external flat 5 which fits within a D-shaped aperture 6 in the side member 2 or 3 to prevent rotation of the bush relative to the side members. Adjacent links are connected together by means of a cylindrical pin 7 extending through and axially slidable in aligned apertures 8 in the side members 2 and 3. The pin 7 is provided at each end with a flat 10. A cross piece 15 is secured to the side members 2 and 3 by stud bolts 17 and has lateral projections 16 which engage the flats 19 to prevent rotation of the pin and also engage the shoulders 19 formed at the inner ends of the flats 10 to prevent or limit axial movement of the pin. The base portion 20 of the cross piece 15 is spaced from the adjacent edges of the side members 2 and 3 to provide clearance space for sprockets (not shown) which engage the bush 4. An alternative chain construction comprises links in the form of inner and outer pairs of flat plates, the inner plates being connected together by two bushes having ends of reduced diameter and extremities which are riveted over, and the outer plates being provided with two cross pieces 15. A travelling grate is described (see Group XII) wherein rotation and axial movement of the pins connecting the links are prevented by means similar to those described above.
Patent GB-792974-A (GB)
Title: Slipring-less electromagnetically actuated coupling
IPC: F16D27/115
Filed: 1956-09-05
Abstract: 792,974. Clutches. RYBA, A., REINISCH, J., and VINATZER, E. Sept. 5, 1956 [Sept. 5, 1955; Feb. 27, 1956; May 12, 1956], No. 27151/56. Class 80 (2). In an electromagnetically-operated clutch, a stationary coil-carrying ring 8 is disposed between the end discs 1, 2 of a composite member of U-shaped cross-section secured to one shaft, and controls through an end armature disc 18 clutch-plates 15, 16 carried by the disc 2 and by a member 17 secured to the other shaft. By this arrangement, the magnetic forces acting between members 1, 8 and 2, 8 are substantially balanced, so as to maintain constant the air gaps therebetween. Compensation for leakage flux between members 1, 8, which would cause unbalance of these magnetic forces, is effected by increasing the left-hand wall of ring 8 by an inwardly-projecting flange 14 or lugs, or by decreasing the right-hand wall by means of grooves or chamfers. The disc 2 comprises pole rings 3, 4 spaced by an intermediate ring 5 of non-magnetic material; or the rings 3, 4 may be joined by radial spokes forming apertures therebetween, the spokes being integral with the rings 3, 4 or made of non-magnetic material. The ring 8 is journalled on the base of the U-shaped member 1, 2 through a non-magnetic bush 10 secured within the ring 8, the magnet coil 9 being between the rings 8, 10. Alternatively, the ring 8 may comprise a pair of magnetic rings separated by the coil, the inner ring being journalled on the base of the U-shaped member 1, 2 by a needle roller bearing; and these rings may be joined by radial spokes or by a solid wall. In this latter event, the unbalance of magnetic forces may act in the opposite direction, in which case the left-hand wall of ring 8 is reduced by grooves or chamfers.
Patent GB-351828-A (GB)
Title: Improvements in or relating to water-gas generators
IPC: C10J3/00
Filed: 1930-09-11
Abstract: 351,828. Water-gas plant. PINTSCH AKT.-GES., J., 71, Andreasstrasse, Berlin. Sept. 11, 1930, No. 27183. Convention date, Sept. 11, 1929. [Class 55 (i).] The steam supply to a water-gas generator a from a waste-heat boiler c is completely utilized during the blowing period in a two-stage turbine b which drives the blower, and during the gas-making period it is used in the high-pressure stage only of the turbine, and is then passed into the generator. A boiler d surrounds the generator and provides low-pressure steam for use in the second stage of the turbine during the blow, and for use in the generator a during the run. A steam drum e is interposed in the steam circuit. The arrows show the passage of steam during the run.
Patent GB-732381-A (GB)
Title: Improvements in or relating to switch devices for electrical consumer appliances
IPC: A47L9/28
Filed: 1952-10-29
Abstract: 732,381. Two-part couplings combined with switches. SCHEID, A. M., SCHEID, W. M., and SCHEID, E. M., [trading as VORWERK & CO.]. Oct. 29, 1952 [Nov. 16, 1951], No. 27208/52. Class 38 (1). In an appliance such as a vacuum cleaner having a built-in switch 5, the supply from the switch is passed through a pair of spring contacts 14, 15 which normally engage and form a socket for a plug 9 of an auxiliary device such as a heating resistance, whereby the latter can only be switched on with the vacuum cleaner. When the auxiliary device is to be connected in series with the appliance, the plug comprises a pair of parallel contacts insulated from each other and each engaging one of the spring contacts. Otherwise two pairs of spring contacts and solid plug pins are provided. In the construction shown, contact 15 is mounted on a fixed part of the appliance casing 3 and contact 14, with the switch, is mounted on a removable cover 4 which may therefore be removed without disconnecting any wires.
Patent GB-1101021-A (GB)
Title: Production of compact yarns and tows by filament spot adhesion
Inventor: WELDON LEONARD HARVEY POCOCK
IPC: D02G3/40
Filed: 1965-06-28
Abstract: A softening agent is applied to a travelling bundle of artificial filaments and the travelling bundle is then heated and, while hot, is intermittently subjected to mechanical pressure such as to cause the filaments to adhere to one another at closely-spaced spots along the length of the bundle, to render it compact while it is travelling in a continuous manner first through a heating zone and then through a pressure-applying station.  The softening agent may be applied in aqueous solution and the heating may be sufficient to remove the water from the solution picked up by the bundle.  The bundle may be further heated while being intermittently subjected to pressure at intervals of distance along its length.  The pressure may be applied to the bundle by being struck with a rapidly reciprocated metal striker against a metal plate, preferably heated, over and in contact with the surface of which the bundle or yarn is caused to travel, the striker being reciprocated in a plane normal to the direction of movement of the bundle.  The striker has a flat, narrow edge, which is parallel to the surface of the plate at the location of contact. The intermittent pressure may instead be applied by means of gear wheels or by means of rubber-surfaced wheels having metal "inserts" spaced around their peripheries to provide pressure areas.  The filaments may consist of polyhexamethylene adipamide and the filament bundle or yarn produced may have zero twist.  It may be a weaving yarn having 0.5 to 5 spots per inch at which all or some of the filaments adhere to one another.  The spots may be uniformly or randomly spaced. The softening agent may be "Lubrol W", ethylene glycol, diethylene glycol, or a polyglycol of molecular weight 200 to 6000.  The process may be applied to tows and yarns of rayon, polypropylene, polyesters, polyacrylic filaments and to natural silk yarns left in the r gummed state prior to the heating and pressing steps, the application of an additional softening agent in this latter case being omitted.
Patent GB-1025306-A (GB)
Title: Method of and apparatus for producing parallelepipedal packs filled with filling material having the ability to flow
IPC: B65B9/12
Filed: 1964-07-02
Abstract: 1,025,306. Forming satchets. HOLSTEIN & KAPPERT, MASCHINENFABRIK PHONIX G.m.b.H. July 2, 1964 [July 18, 1963], No. 27402/64. Heading B8C. A flexible filled tube 1 (Fig. 1) is enclosed by rectangular cells 2 which weld and cut the tubing to form parallelepipedal satchets. In the form shown, guides 7 feed the tube between two conveyers carrying the cell halves 2, a projection 10 (Fig. 2, not shown), on one cell half engaging a depression 11 in the other. Flaps 3 (Fig. 4, not shown), connected to both ends of the cell halves 2 by hinges 21 and extending laterally of the cell halves, are moved inwards 90 degrees (Fig. 5) so that a welding jaw 13 with heating elements 17 on one flap and movable relative to the flap presses against rubber inserts 19 on the opposed flap to weld the tube. A knife 14 separates the satchets. The terminal lobes of the pack are spotwelded. Prior to sealing a gap g (Fig. 5) between the flaps allows excess material to escape to the satchet above.
Patent GB-742211-A (GB)
Title: Sealing devices for use between relatively rotatable machine elements
IPC: F16J15/32
Filed: 1953-10-06
Abstract: 742,211. Oil seals. GARLOCK PACKING CO. Oct. 6, 1953 [Dec. 5, 1952], No. 27456/53. Class 122(5) A rubber oil seal 10 for a rotary shaft 16 comprises a flexible sealing lip 24 in sliding contact with the shaft and a holding portion 20 press-fitted in the shaft housing 14 and reinforced by a metal ring 28 formed from circular cross-section wire and embedded in' the rubber so that it is spaced from the housing' bore 12. The ring 28 may be either continuous or circumferentially split at one point with the ends abutting. The portion 20 is tapered at 32 to facilitate insertion in the housing..As an alternative to the arrangement shown the seal may be press-fitted on the shaft and have a sealing lip in contact with the housing bore; the reinforcing ring 8 being continuous.
Patent GB-158660-A (GB)
Title: Improvements in wheels for tractors or mechanically propelled vehicles
IPC: B60B15/02
Filed: 1919-11-07
Abstract: 158,660. Woodhead, L. W., James, G. A., and Brockhouse, H. Nov. 7. 1919. Tyres, non-elastic.-The wheels of tractors or mechanically propelled vehicles for use on roads and soft agricultural land consist of two or more discs 2 and plates 4 arranged parallel to the axis and within the periphery of the discs and secured thereto. The plates may be passed through radial slots in the discs and retained by cottar pins. Alternatively a ring 6 may be fastened to one disc by projections and slots 10 so as to have limited movement in a circumferential direction. The ring has notches 7 on its outer edge corresponding in position to the plates 4, which are notched at 9. The plates are inserted through the notches 7, and the ring is rotated so as to engage the notches 9. The projecting ends of the plates mav be fitted with a band flush with the outer periphery of the discs when used on the road.
Patent GB-1425302-A (GB)
Title: Heat-shrinking apparatus
IPC: B65B53/06
Filed: 1974-06-21
Abstract: 1425302 Heat-shrinkage apparatus FR HESSER MASCHINENFABRIK AG 21 June 1974 [22 June 1973] 27583/74 Heading B8C Apparatus for shrinking shrinkable film wrappings on to articles comprises a first and a second conveyer 8, 9, the second conveyer 9 of which is sequentially aligned with and spaced from the first conveyer 8 and at least one nozzle 2, 3 between the conveyers to direct hot gases on to the wrapping. Nozzles 2 and 3 may be adjustable with respect to the level of the upper runs 8a and 9a of the conveyers and may be in the shape of slit-orifices. One of these slit orifice nozzles 2 is inclined in a direction opposed to the direction of conveyance whereas the other nozzle 3 is inclined in the direction of conveyance. A further nozzle 4 may be arranged above the second conveyer 9, preferably downstream of the clearance 10. Instead of a single nozzle 4 a plurality of upper nozzles, extending at an angle similar to the nozzles 2 and 3, may be provided. For preheating the bottom surfaces of the wrappings 15 to a temperature below the shrinkage temperature before reaching the clearance 10, the table 13 supporting the first conveyer 8 may be provided with heating means 20. Alternatively, nozzles might be used for this preheating.
Patent GB-666751-A (GB)
Title: Improvements in or relating to conveyors
IPC: B65G19/28
Filed: 1949-10-27
Abstract: 666,751. Endless conveyers. COWLISHAW, WALKER, & CO., Ltd., and SEED, E. C. Oct. 27, 1949. No. 27616/49. Class 78 (i). A conveyer of the kind having an endless belt or chain supported by a framework, comprising a plurality of lower units such as troughs, detachably connected together to form a row and a plurality of upper units also detachably connected together in a row, is characterised in that adjacent units of one row abut and in that means are provided at the abutting ends of each of said adjacent units removably to engage a single unit of the other row to hold the abutting ends of said adjacent units against separation in the longitudinal direction of the conveyer only, and in that further means is provided carried by said single unit removably to engage each of said first means to hold said pair of adjacent units and said single unit against separation in an upward and downward direction normal to the longitudinal direction of the conveyer. In the embodiment shown, the upper and lower runs 27, 28 of the endless chain are supported by rows of trough units 5, 13 respectively. Each unit 5 has secured at its ends a bar 9 which is covered by a plate 10 over that portion of its length which is secured to the unit 5. Each unit 13 has a U-shaped strap 16 projecting beyond its face at one end and a strap 18 at its other end, these straps being so arranged that the strap 18 of one unit is received by the strap 16 of an adjacent unit, so that the adjacent ends of these units abut. The end of the unit 13 which carries the strap 18 has a pin 19 projecting from each side which engages in a slot 20 in the strap 16 of an adjacent unit 13. Adjacent units 13 are prevented from separating and at the same time connected to the units 5 by the adjacent bars 9 of adjacent units 5 engaging in a slot 21 in each side 15 of one of the units 13 and its strap 16, and by a bar 23 pivotally mounted on each side of the strap 16 of this unit 13 so that it may be swung up to lie over the projecting ends of the bars 9. The bar 23 is carried by a pin 26 pivotally mounted in brackets 24 on the strap 16, and the bars 9 in the slot 21 are separated sufficiently to receive the pin 26 between them. Stops 30 on the brackets 24 prevent the bars 23 falling too close to the floor on which the units 13 rest. The cover plates 10 have upwardly directed sides 11, 12, Fig. 1, to prevent the chain 28 fouling the bars 9. The units 13 are reinforced by strips 29, Fig. 4.
Patent GB-869656-A (GB)
Title: Improvements in or relating to open hearth furnaces
IPC: F27D1/00
Filed: 1957-09-03
Abstract: 869,656. Open-hearth furnaces. VITKOVICKE ZELEZARMY KLEMENTA GOTTWALDA, NARODNI PODNIK. Sept. 3, 1957 [Sept. 12, 1956], No. 27791/57. Class 51 (2). In an open hearth furnace the hearth comprises magnesite bricks 3 arranged in step formation, a relatively thin layer of granular material 6 e.g. magnesite or dolomite, being then applied and sintered in situ. The front and rear walls 1 and 2 slope downwardly towards the bottom 4 so that the projecting edges 5 of the bricks substantially define a parabolic curve 6. A similar construction is applied to the sloping sections of the hearth between the firebridges and the bottom, Fig. 3 (not shown).