baber/WOPTO huggingface dataset:
Patent GB-294269-A (GB)
Title: Improvements in or relating to duplex telegraphy
IPC: H04L5/14
Filed: 1927-05-02
Abstract: 294,269. Smith, W. S., and Mc- Lachlan, N. W. May 2, 1927. Duplex telegraphs; artificial lines.-In telegraph cable and like systems, particularly duplex bridge systems, in which pairs of condensers having one common connection are employed, each pair of condensers is formed as a unit having one common plate and two other plates. Thus in the bridge shown in Fig. 1, the condensers c, c have one common plate. In this arrangement a lumped impedance 1 is inserted in series with the main cable 7 and comprises either an impedance network or a length of cable coiled in an earthed tank of water. In addition a similar lumped impedance 8 (with or without the addition of an adjustable resistance for use with unloaded cables to compensate for their inductance) may be inserted in series with the artificial line 10. Resistances equal to the characteristic impedance of the cable may be inserted on each side of the lumped inpedances 1, 8. The latter impedances may comprise resistances, condensers and inductances arranged in various ways which are indicated in the drawings accompanying the Specification, and the inductances may be coupled to closed impedance circuits. In the arrangement shown in Fig. 7, the lumped impedances comprise resistances 14a, 14b, with pairs of shunt condensers 13<a>, 13<b> each pair forming a unit with a common plate. The receiver 6 may be connected across any pair of balanced points in the impedances 1, 8. The impedance elements may be graded in magnitude and may be coupled to one another or to secondary networks. The transmitter voltage may be raised so that the voltage applied to the end of the cable 7 is of normal magnitude after attenuation in the lumped impedances. Restoring or modifying imperfect signals.-As shown in Fig. 8 a shaping device 18 may be provided for attenuating the low-frequency harmonics, in view of the attenuation of the higher harmonics by the impedances 1, 8. Several receivers, each responsive to a different frequencyrange, may be connected between any two balanced points, their output being combined after amplification and shaping. Condensers. In order to ensure symmetry, the condensers 13a, 13<b> are built in pairs : the earthed electrodes E, Fig. 10, lie between electrodes belonging respectively to the systems 13<a> and 13<b>, or two plates 13a, 13b, Fig. 11, may be attached to one side of a slab 17 of dielectric, while a larger common electrode is attached to the other side of the slab.
Patent GB-216730-A (GB)
Title: Improvements in or relating to dental drilling apparatus
IPC: A61C1/05
Filed: 1923-07-27
Abstract: 216,730. Gythfeldt, T. July 27, 1923. Dental engines.- A dental handpiece is fitted with a chamber connected to a suction pump and having an opening directed towards the drill so as to remove the particles produced by the drilling operation. Fig. 1 shows a straight handpiece 1 fitted with a chamber 2 having an opening 3 surrounding the drill and a pipe 4 connected to a suction pump. In modifications, the chamber 2 may be extended so as completely to enclose the handpiece except at the driving end, or may be adapted to right-angled handpieces. Fig. 5 shows a suction pump 12 mounted on the spindle of the driving motor 15 of the dental engine and connected to the chamber 2 on the handpiece and to a collecting vessel 14 for the dust.
Patent GB-943904-A (GB)
Title: Improvements in or relating to tailstock centres for lathes
IPC: B23Q1/30
Filed: 1962-05-18
Abstract: 943,904. Lathes. SZERSZAMGEPFEJLESZTO INTEZET. May 18, 1962 [Nov. 13, 1961], No. 19334/62. Heading B3B. A self-locking and adjusting tailstock centre for a lathe comprises a spindle sleeve 4 carrying the centre 3, the sleeve and centre being axially movable by hydraulic pressure acting on a piston 2 in a cylinder 1. A locking piston 5, is movable perpendicularly to the spindle axis, in a cylinder 6 which is connected with the cylinder 1 so that fluid entering cylinder 6 through pipe 7 simultaneously flows through pipe to the piston 2 and urges the centre 3 against the work. Frictional locking occurs between an inclined face 5a on the piston 5 and a co-operating face on rod 14 attached to the spindle 4. The angles of the inclined faces of said locking means are such that rearward yielding of the spindle sleeve is prevented even if the hydraulic pressure fails. Retraction of the centre from the work and releasing the locking means are effected simultaneously by operating the reversing valve 13 to direct the hydraulic pressure to the other ends of the cylinders 1 and 6. To facilitate small axial adjustment of the spindle the face 5a may be inclined in two directions, to the longitudinal axis of the spindle and to the longitudinal axis of the locking piston the rod 14 being similarly shaped. The locking faces also are sufficiently yieldable to compensate for thereof expansion of the work.
Patent GB-1422358-A (GB)
Title: Multilayer thermoplastic structure
IPC: B32B27/00
Filed: 1973-04-24
Abstract: 1422358 Laminates DOW CHEMICAL CO 24 April 1973 [24 April 1972] 19357/73 Headings B5N and B5B A thermoplastic multilayered structure in the form of a film or sheeting comprises a gas and water vapour barrier core layer, thermoplastic adhesive layers an each side of the barrier layer comprising a blend of a copolymer of ethylene/vinyl acetate and a copolymer of ethylene/acrylic acid, an outer polyolefin resin layer secured to one of the adhesive layers and an outer nylon resin layer secured to the other adhesive layer. The polyolefin resin is polyethylene, polypropylene, a copolymer of ethylene and propylene or a polymer of ethylene and/or propylene with less than 50 mole per cent of other mono- or di-olefinically unsaturated monomers. The barrier layer may be an acrylonitrile, vinylidene chloride or fluoride, vinyl chloride, fluorocarbon, fluorohydrocarbon or fluorohalohydrocarbon polymer. The structure which may be used in packaging may be produced by co-extruding the individual layers.
Patent GB-1470481-A (GB)
Title: Bending head for a bending machine
IPC: B21D7/08
Filed: 1975-05-08
Abstract: 1470481 Bending heads V N SHUBIN V S SILANTIEV and A S KHLYNTSEV 8 May 1975 19362/75 Heading B3E A bending head for bending a tube or rod 1 includes a housing 2 through which the tube or rod is axially fed, the housing supporting two pairs of rollers 5 and 6 and two bending rollers 8 mounted on a pivotable arm 7. The arm is adjusted by a rod 9 whose end is threaded into a rotatable nut 10, rotation of the nut (by means of a toothed annulus 11) causing movement of the arm. The arm can be pivoted in opposite senses so that one or other roller 8 is operative. The nut is carried in a gear 12 rigid with the housing, rotation of the gear causing the whole head to rotate about its axis. This allows the plane of bending to be varied, or permits the production of a helically bent tube when the gear 12 is rotated during bending. An archimedian spiral can also be produced.
Patent GB-1248383-A (GB)
Title: A control circuit for windshield wipers and washers of motor vehicles
Inventor: CHRISTENSEN HENRY PETER
IPC: B60S1/48
Filed: 1970-04-23
Abstract: 1,248,383. Windscreen cleaning systems. H. P. CHRISTENSEN. April 23, 1970 [May 1, 1969], No.19582/70. Heading A4F. [Also in Division H2] A windscreen wiper motor 1 may be operated continuously with switch 4 in position N, or intermittently with switch 4 in position A by connecting it to point 3 via make-and-break contacts 10a, 10b controlled by a relay coil 9, activated by a multi-vibrator and gate stage, Fig. 2 (not shown), whose frequency may be adjusted via a potentiometer (P 1 ) incorporating a circuit on-off switch. Switch 1b is an automatic parking device, the armature being short-circuited for braking when switch 1b operates. The contacts 10 are of the break-before-make type. A washer motor 5 may also be operated intermittently with switch 6, which also has a neutral position as shown and a "continuous" position N, in position A, contacts 11 also being actuated by relay coil 9. Both motors operate together if they are both set for intermittent operation. The motor fields may be provided by permanent magnets.
Patent GB-572563-A (GB)
Title: Wood product
IPC: B05D3/10
Filed: 1944-04-14
Abstract: 572,563. Wood. FAIRWEATHER, W. C. (American Foundry Equipment Co.). April 14, 1944, No. 19593/45. Divided out of 571,683. [Class 145 (ii)] The invention consists of a porous wood in which the pores are filled by mechanical compression with an inorganic powder such as fine silica, which is held in the pores by compression and is free from any binder substance or liquid acting chemically with the filling powder. A method of filling the pores is described in Specification 571,683.
Patent GB-1147138-A (GB)
Title: Improvements in or relating to hydraulic control mechanisms
IPC: F15B13/043
Filed: 1967-04-28
Abstract: 1,147,138. Fluid-pressure servomotor systems. LTV ELECTROSYSTEMS Inc. April 28, 1967 [May 2, 1966], No.19702/67. Heading G3P. A hydraulic control mechanism comprises a housing 34 having first and second cavities 37A, 37B communicating with opposite ends of a cylindrical bore containing a slidably mounted valve spool 58, first and second jet pipes 72, 73 opening into the first and second cavities, respectively, and means 79 to control the flow of fluid through the jet pipes to develop a differential pressure across the valve spool. The means 79 consists of a torque-motor-operated flapper connected to the valve spool by a feedback spring 90 and arranged to divide the flow from a supply line 43 and a filter 48 between a pair of nozzles 41, 42 leading to the jet pipes. The line 43 also supplies the valve spool through a pair of passages 44, 46 which supply one of a pair of service ports 49, 51 when the spool is displaced from its control position, the other service port being connected to a return line 52. The service ports supply a double-acting ram. A potentiometer adjusted by the ram supplies a feedback signal to a summing amplifier which also receives the signal for controlling the ram position. The output from the summing amplifier is fed to the torque motor through a control amplifier 14. The jets 72, 73 keep the valve spool in a state of constant movement to reduce static friction.
Patent GB-918922-A (GB)
Title: Double-fitting for the infinitely variable mixing of hot and cold water
IPC: F16K11/20
Filed: 1959-06-10
Abstract: 918,922. Supply fittings. GERDES, C. H. June 10, 1959 [Feb. 10, 1959], No. 19853/59. Class 26. [Also in Group XXIX] A double-fitting for mixing hot and cold water comprises a valve housing 1, a mixing chamber 28 therein and an external valve having a spindle 37 with an axial bore for controlling the flow of cold water to a heating element, regulated externally, and then to the chamber 28, and an internal valve coaxial with the external valve with a spindle 38 extending through the spindle 37 and controlling the flow of cold water to the chamber 28. The fitting is connected with the water supply by a piece 19. The housing has a flange 29 which receives the heating element in bores 30. The respective valves are actuated by handles 3, 4 fixed to the spindles 37, 38, (handle 3 being star-shaped), and are made up of packing plates 17, 18 in caps 15, 16. The spindles 37, 38 are guided with a water-tight fit in sleeves 7, 8 and between the handles 3, 4 is a pressure spring 5. The housing 1 is closed by a valve-housing screw connection 2 accommodating the spindles 37, 38 and removable with them. The flange 29 has a cold-water feed bore 25 leading to the heating element and a hot-water return bore 26 leading from it.
Patent GB-134196-A (GB)
Title: Improvements in or relating to Lubricating Oil Purifying and Reclaiming Systems.
IPC: C10M175/00
Filed: 1919-08-13
Abstract: 134,196. De Laval Separator Co., (Assignees of Kennedy, F. W.). Oct. 23, 1918, [Convention date]. Density separators.-A centrifugal separator, forming part of a plant for recovering waste lubricants, comprises a shell 2 revolved by a shaft 3 and bearing on its threaded nave 4 a carrier 5 which is extended upwards to form a receiving- chamber 6 having radiating passages 7 leading to the shell periphery, and which carries a petticoat 8 and disks 9 having alining holes' 10, and a disk 13 with a neck 14, so that a water and sediment outlet 16 and an oil outlet 17 are formed. A driving wing 11 and wings 12, 15 also are provided.
Patent GB-783694-A (GB)
Title: Improvements in storage racks
Inventor: METCALF JOHN HERBERT
IPC: A47B87/02
Filed: 1955-07-21
Abstract: 783,694. Sectional racks. VICTROLEC Ltd. June 28, 1956 [July 21, 1955], No. 20004/56. Divided out of 783,693. Class 52(1) Elongated members 14 of angle or channel section with converging sides project above the level of the top surface of a rack framework and engage similar members 15 on the bottom of the superposed section. The corner uprights 11 may have depending lugs at their lower ends to prevent relative longitudinal movement of the parts 14, 15.
Patent GB-352718-A (GB)
IPC: A01G5/04
Filed: 1930-07-02
Abstract: 352,718. Table decoration. SELLMANN, T., Rheine, Westphalia, Germany. July 2, 1930, No. 20054. Convention date, Jan. 31. [Class 128.] A core for flower and like arrangements such as table decorations, is made of peat formed to the desired shape by cutting or other means, by joining together small pieces, or by moulding peat dust to which a binding nedium has been added. In one form, a circular core is cut out of a slab of peat, and leaves, moss, and flowers are attached by wire staples. In the form shown, a complicated shape is built up of a number of parts f, g, h, i, k joined together by staples m or glued together. The core may be stiffened by mounting it on a metal plate or by inserting wooden bars, wires, &c., and a protective paper covering or coat of paint may be applied.
Patent GB-204812-A (GB)
Title: Improvements in or relating to apparatus for repairing the outer covers of vehicle wheel tyres
IPC: B29C35/00
Filed: 1922-07-22
Abstract: 204,812. Whiteside, R. July 22, 1922. Vulcanizing tyres.-In apparatus for repairing tyres &c. of the type in which a liner is inserted in a groove in a heated chamber, the liner is of such construction that the beads may be treated, and also tyres of various sizes may be treated. In a groove 2, Fig. 2, of a steam-heated box 1 is placed a liner 10, Fig. 6, the outer face of which is of the same contour as the groove 2 and the inner face is formed with or has inserted a tread pattern of the tyre. The liner is fitted with beadretaining portions 10<a> adjusted by sliding tongues 10<d> in grooves 10<c>, the grooves 10<b> of which may be filled when straight-sided tyres are to be treated. The tyre to be repaired is placed in the liner and clamped by bolts 12, 14, a sand-bag is inserted, and the tyre is pressed into the mould bv screws 16, pressure being distributed by a V- shaped strip placed on the bag. The liner is placed in the groove 2 and clamped by screws 9 which also bear on the V-strip and are carried by hinged bridge-pieces 6, and the chamber is heated. In a modification, the liner may be hinged for the reception of the tyre, and the bead-receiving grooves may be non-adjustable. The chamber 2 may also be provided with a clamp 23, 24 for repairing inner tubes, and with a union 29 for attaching a split hollow collar for jointing tubes.
Patent GB-205585-A (GB)
Title: Improvements relating to electrical resistances
IPC: H01C1/016
Filed: 1922-07-22
Abstract: 205,585. North, N. E., and Metropolitan-Vickers Electrical Co., Ltd. July 22, 1922. Resistance grids.-Adjacent grids of a grid resistance are provided with additional electrical connection by bonding-pieces of conducting-material having a coefficient of expansion greater than that of the material of the grids and located in holes or recesses within the grids, with which they are in contact over substantially the whole of their length. The grids 7, Figs. 1 and 2 are assembled on insulated supporting-bolts 8, with alternate copper washers 9 and insulating washers 10 to effect the series connection in the usual manner. The bonding-elements 11 may be of tubular construction to surround the insulated bolts, and are driven into holes 12 in adjacent grid ends, the holes in this case being made larger than the bolts 8. In a modification the bonding elements are in the form of circular rods 11, Fig. 4, driven into holes 13 in the grids, or they may be of dovetail section and driven into channels in the edges of the grid ends. The bonding-elements may also be secured within the grids by screwing or by other means.
Patent GB-299111-A (GB)
Title: Dished metal cover for jars
IPC: A47J36/06
Filed: 1927-07-29
Abstract: 299,111. Gray, R. E. July 29,1927. Closures completed by outstanding packing- rings.-A dished metal cover A for bottles or jars is formed with conical sides B having horizontal ribs, the sides providing a recess for the reception of a rubber packing-ring C.
Patent GB-1042565-A (GB)
Title: Pin block for textile stretching and drying machines
IPC: D06C3/10
Filed: 1964-05-14
Abstract: 1,042,565. Finishing fabrics. K. BRUCKNER, G. BRUCKNER and W. BRUCKNER [trading as TROCKENTECHNIK KURT BRUCKNER KOMM.- GES]. May 14, 1964 [May 15, 1963], No. 20194/64. Heading D1S. A pin block for stretching and drying machines, comprising parallel pins 3, each of which consists of a part 5 secured to and projecting from the block 1 in a direction substantially parallel to the upper side 4 of the block 1 and of a pointed end 6 bent upwardly to extend substantially at a right or smaller angle to the part 5, and wherein the ends 6 are arranged to form one or several rows extending parallel to the longitudinal edge of the block 1, is characterized in that supports 7, 10, 11 or 12 for the fabric 8 are provided on the pins 3 at the points intermediate the parts 5 and the ends 6. In one embodiment, Figs. 1 and 2, the supports 7, which may be made of the same material as the pins 3, comprise a transverse web of wire disposed between two rows of the ends 6 and may either be clamped between the ends 6 or soldered or welded thereto. In a second embodiment, Fig. 3 (not shown), an eye 10 is fitted over each pin end 6 and clamped, soldered or welded thereon. In further embodiments, Figs. 4 and 5 (both not shown), wire loops 11,12 are clamped, soldered or welded to the ends 6, as shown. In modifications (not shown), the wire 7 and the loops 11,12 are provided with extensions secured to the block 1.
Patent GB-1349426-A (GB)
Title: Catalytic converter for exhaust gases of an internal combustion engine
IPC: B01J35/02
Filed: 1972-05-02
Abstract: 1349426 Heating element FORD MOTOR  CO Ltd 2 May 1972 [22 June 1971] 20261/72 Heading H5H [Also in Division F1] An electrical heater within the catalyst support 20 of a catalytic I.C. engine exhaust gas converter comprises a tube 24 of a nickel base alloy containing 13% chromium and about 6% iron and an electrical resistance wire heating coil 26. The tube 24 and coil 26 may be arranged so that initial thermal expansion of the coil bridges the radial clearance therebetween which exists at room temperature.
Patent GB-710368-A (GB)
Title: Improvements in or relating to arrangements for mounting a trimmer capacitor on an inductance coil former
IPC: H05K3/30
Filed: 1951-08-28
Abstract: 710,368. Radio receiving apparatus. GENERAL ELECTRIC CO., Ltd., and WILSON, E. Aug. 22, 1952 [Aug. 28, 1951], No. 20275/51. Class 40 (5) A trimmer condenser of the type comprising two sets of coaxial cylinders 3, 4 is mounted on a coil former 1 by securing the condenser to a rigid base plate 10 provided with holes 11 through which are passed tags 2 secured to the coil former, the free ends of the tags being deformed so as to rigidly fix the base plate to the former. The condenser is fixed to the base plate 10 by soldering its centre pin 5, 6 into a metal bush 9 which is moulded into the base plate. The base plate 10 is formed with a central boss 12 fitting inside the coil former 1 ; four studs 13 are also provided for location purposes to enable the base plate to be used with a coil former of a larger diameter.
Patent GB-1255454-A (GB)
Title: Deep fat frying apparatus and process
IPC: A23L5/10
Filed: 1970-04-28
Abstract: 1,255,454. Deep fat frying. PILLSBURY CO. April 28, 1970 [April 29, 1969], No.20275/70. Heading A4D. A deep fat frying apparatus comprises a vessel 10 with a hood 11 and two endless chain conveyers 20, 30, a steam inlet system 60-64 and a fat circulation system 40-50. Pieces of foodstuffs 14 are introduced through a hopper 12 and are transported through liquid fat 16 placed in the vessel 10, the fat being heated to a temperature of 350‹F, by means of a heat exchanger 48 in the fat circulation system between the outlet duct 46 and the inlet duct 40, the circulation being promited by a pump 49. The fat is introduced into the vessel 10 from the duct 40 via an elongate manifold 42 having a plurality of openings (44), Fig. 2 (not shown) and the steam is introduced via a similar manifold 64 located between the manifold 42 and the floor of the vessel so that the incoming steam passed upwards through the incoming stream of fat. The steam is stated to provide a vehicle for the distillation of undesirable fat breakdown products, and occupies the volume enclosed by the hood 11 above the fat, excess escaping through a duct 11a. In a frying process, the liquid fat is heated to a temperature in excess of 300‹F. and steam is introduced when the fat is at a temperature greater than 212‹F.
Patent GB-411700-A (GB)
Title: An improved method of drying threads and fabrics by hot air, and a drying chamber for carrying out such method
IPC: F26B13/08
Filed: 1933-07-18
Abstract: 411,700. Drying threads and fabrics. BERGMANN, A., 19, Place du Chapitre, Reims, Marne, France. July 18, 1933, No. 20279. Convention date, July 25, 1932. [Class 34 (i).] In its rectilinear or zig-zag travel through a drying chamber, a fabric or a sheet of threads is first treated by a stream of air in co-current, the air entering at atmospheric temperature and being progressively heated up to the maximum permissible temperature, thereupon being evacuated from the chamber, and then the fabric meets a stream of air in countercurrent, this stream being maintained at the maximum permissible temperature from its entry near the exit for the fabric to its withdrawal near the evacuation point for the first stream. In the form shown, fabric 3 enters a heat-insulated chamber 1 at 4 and passes through it in zig-zag to the outlet 5. Air is evacuated at points a and b, hot air being forced in at c and cold air drawn in at 4. The baffles for guiding the air consist of undulated metal plates 8 supported on an insulating backing, and underneath each crest is a steam tube 9, the diameter of these tubes increasing progressively from points 4 and c to points a and b. The supply and exhaust boxes such as 13 have openings in the small sides such as 13b, the chambers thus formed being subdivided by partitions to form compartments decreasing in size towards the sides of the chambers, so that uniform flow is obtained. The exhaust air is passed through a heat recuperator 19 before being discharged.
Patent GB-854742-A (GB)
Title: Improvements in or relating to letter-box closures
IPC: A47G29/126
Filed: 1959-06-15
Abstract: 854,742. Letter-box closures. KERSHAW, T., and KERSHAW, J. H. June 15, 1959, No. 20347/59. Class 18. A letter box flap 15 has a bead 16 retained in a channel 11 formed in a mounting member 10, the open bottom of the channel 11 being reduced in width. Strips 17, to exclude draughts, of rubber or plastic foam are adhered to the inner surface of the flap 15 along its vertical and lower horizontal edges, the horizontal strip 17 being accommodated between ribs 18, 19. The flap 15 is fitted to the member 10 by sliding the bead 16 through one end of the channel 11 and is retained there by screws (not shown) which mount the member 10 on the inside of the door. The flap 15 and the member 10 may be formed from extruded metal or synthetic resin strips and their surfaces may be painted or anodised if they are made from aluminium or aluminium alloy.