baber/WOPTO huggingface dataset:
Patent GB-386710-A (GB)
Title: Improvements in and relating to wheels and axles for railway vehicles
IPC: B60B37/10
Filed: 1931-09-07
Abstract: 386,710. Vehicle wheel bearings and lubricating. STABLES, J. N., 27, Queen's Court, Bree Street, Johannesburg, South Africa. Sept. 7, 1931, No. 25079. [Classes 12 (i) and 12 (ii).] In a railway vehicle wheel and axle bearing in which the wheel has a central annular lubricant chamber 17 and end recesses housing thrust collars 3, 8, a thrust washer 12 is provided between the inner collar 8 and the end face of the corresponding recess in the hub 5. The washer 12 may be fitted in a recess in the collar 8, and the latter may be integral with or fixed to a tubular sleeve surrounding and fixed to the axle 1. A thrust washer 12 may be positioned between the outer collar 3 and the hub. The outer collar 3 is screwed to an extension 2 of the axle and is locked in position by a spring catch 23 which is fixed to the collar 3 and has an hexagonal hole engaging a correspondingly shaped projection 4 on the axle end. In the periphery of each collar 3, 8, and/or washers 12, or the opposing surfaces of the hub one or more annular grooves 30 containing felt, leather, or other packing-means may be provided. Lubricant is led to the bearing-faces of the end collars through axial grooves 31 formed in the hub or in the bearing bush 28, the chamber 17 being charged through a spring ball-valve 18 which is flush with the inner end of one of the wheel arms. The chamber 17 may have radial partitions 33 and the bush 28 annular grooves 34. Holes 32 lead lubricant to the axle journal. The bearing bush 28 may be replaced by ball bearings or by flexible roller bearings.
Patent GB-615077-A (GB)
Title: Improvements in or relating to lawn mower structures
IPC: A01D34/54
Filed: 1946-08-23
Abstract: 615,077. Lawn-mowers. STEVENS, A. H. (Atwood Vacuum Machine Co.) Aug. 23, 1946 No. 25192. [Class 6 (ii)] The cutting height of a lawn-mower may be adjusted by spring-loaded latches 37, carried on the main frame, which selectively engage notches 40 in pivoted brackets 31 carrying the ground roller 27. The frame comprises a pair of side plates 17, 18 joined by cross members 20, 21, the cutter reel 24 being rotatably mounted between the side plates. The ledger blade 28 is of arcuate form and is carried by levers 50 pivoted on studs 32 on the side plates. The blade 28 is resiliently urged towards the reel 24 by the action of springs 47 attached to pins 49 on the levers and is adjustable by the rotation of milled heads 65 carried by adjusting screws which bear against the upper ends of the levers 50. The height-adjusting roller 27 is mounted on an axle 29 carried by brackets 31 also pivoted on the bolts 32. Each bracket is provided with notches 40 selectively engaged by the end of a pivoted latch 37 which is urged into engagement with the notch by the spring 47. The latch may be retracted by a lever 51 depressible by hand or foot pressure. The ground roller 27 may be of tubular metal construction and covered with rubber.
Patent GB-158861-A (GB)
Title: Improvements relating to piston packing
IPC: F16J15/32
Filed: 1920-09-01
Abstract: 158,861. Farmer, C. C. Feb. 7, 1920. Piston packing. - Cupleather packing is made of oil-proof, i.e. hard rubber with layers of coarse woven wire or other fabric 1 completely embedded therein, the rubber passing through the meshes of the fabric. Preferably each layer of fabric is united with a sheet of rubber by rolling, and layers of the compound fabric are then superposed, cupped and vulcanized.
Patent GB-1008048-A (GB)
Title: Improvements in or relating to instrument protectors
IPC: G01P5/16
Filed: 1964-06-18
Abstract: 1,008,048. Ice detectors. ROSEMOUNT ENGINEERING. A. G. June 18, 1964 [Oct. 24, 1963], No. 25327/64. Heading B7W. An ice detector has a probe 25 (Fig. 2, not shown) or 58 (Fig. 5) protruding into an airstream and an aerofoil-section guard 35 or 55 positioned upstream of the probe which shields the probe from hail, gravel and like particles likely to damage the probe, but deflects air and water droplets on to the probe. The probe and guard may be mounted on a panel 65 (Fig. 5) forming part of the skin of an aircraft, either normal or parallel (Fig. 5) to the panel. An Auxiliary member 36 (Fig. 2), 70 (Fig. 5) may be provided to guide the flow over the probe. The guard and auxiliary member may be heated. In the embodiment shown in Fig. 5, the panel 65 is concave so that particles deflected by the guard 55 do not bounce on to the probe.
Patent GB-386921-A (GB)
Title: Improvements in and relating to methods of operating electric motors
IPC: H02P5/69
Filed: 1932-09-12
Abstract: 386,921. Control of two D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Mickey, B. D. ; 1247, Baker Avenue, Schenectady, New York, U.S.A.) Sept. 12, 1932, No. 25397. Convention date, Sept. 14, 1931. [Class 38 (iii).] Motors 10, 11 sharing a mechanical load have regulating fields 22, 23 respectively, supplied from an exciter 24 responsive to variations from a predetermined proportion between the motor currents, so as to tend to restore the motor currents to the predetermined proportion. The motors are fed Ward Leonard fashion from a generator 12, and their armature currents pass differentially through the fields 26, 27 of the exciter 24 which supplies the fields 22, 23 in series. The motors also have separately excited fields 18, 19. If the load division varies, a voltage is produced by the generator 24 which decreases the field of the more lightly loaded motor, and increases the field of the other. When the direction of rotation of the motors is reversed by means of a switch 14, a switch 25 is also changed over in order that the field regulation may be in the correct direction. In a modification, the fields 26, 27 are replaced by a single field energized across resistances in the motor armature circuits, which resistances may be the compensating or commutating windings. When the motors are of unequal capacities, the fields 26, 27 or the armature resistances are suitable proportioned.
Patent GB-1046494-A (GB)
Title: Improvements in or relating to railroad vehicles
IPC: B61G11/00
Filed: 1963-06-26
Abstract: 1,046,494. Railway vehicle undercarriages; cars continuous; railway vehicle buffers. SOC. ANON. PATENTES TALGO. June 26, 1963 [Sept. 18, 1962], No. 25444/63. Headings B7L and B7T. A railway vehicle, Figs. 3 and 4, has a central traction bar coupler 18, longitudinally slidable side buffers A, B, operatively connected to a wheel axle 11 through axially yieldable buffer stems 5, 5<SP>1</SP>, bell-cranks 6, 6<SP>1</SP> pivoted on the vehicle body at 10, 10<SP>1</SP> and interconnected by a rod 7 and by arms 1, 1<SP>1</SP> secured to the pivots 10, 10<SP>1</SP> and connected by rods 2, 2<SP>1</SP> to rockers 0, 0<SP>1</SP>, on the axle ends, which rockers are also connected by rods 4, 4<SP>1</SP> to brackets 8, 8<SP>1</SP> secured on the body. When a train of vehicles negotiates a curve one buffer is compressed and through the rod 7 the spring of the buffer B will also be compressed in series. The movements of the rods 2, 2<SP>1</SP> causes the rockers to swivel the axle as shown in Fig. 4. The traction bar 18 comprises one part of a two-part draught coupling which may be of a type which, once coupled may maintain both parts rigidly joined, or of a tyre which once coupled, may maintain both parts longitudinally yieldably joined. Each side buffer and its stem 5 (5<SP>1</SP>) comprises a buffer plate 13, Fig. 5 (not shown), on one end of a rod 16 slidably guided in a collar 15 on the vehicle body. Outward movement of the plate 13 is limited by an abutment member 16<SP>1</SP>. A tubular member 14 is connected to the rod 16 by a rod 14<SP>1</SP> and slidable in the member 14 is a tubular member 23 having a bearing portion 19. The rod 14<SP>1</SP> extends through apertures 21 in the member 23, and outward movement of the latter on the rod 14<SP>1</SP> is limited by lock nuts 22. The end portion 24 of the member 23 engages the bell-crank lever 6. Between the end 1411 of the member 14 and the portion 19 is a prestressed ring-type spring 12 The rod 16 can be locked in a normal position by a pin 17 inserted through aligned apertures in the collar 15 and rod 16. When vehicles are coupled to form a train the trailing buffers of each preceding vehicle are locked by the pins 17 and the leading buffers of each succeeding vehicle are left unlocked.
Patent GB-842011-A (GB)
Title: Process for splitting racemates of alicyclic compounds
IPC: C12P33/00
Filed: 1956-08-21
Abstract: Racemates of bicyclic-alicyclic compounds which contain an oxo group reducible with the formation of a new centre of symmetry are subjected to the action of a reducing enyzme produced by a culture of micro-organisms, at least one of the resulting optically active products is isolated and if desired at least one of the resulting hydrogenation products is subjected to the action of a dehydrogenating agent, e.g. chromic acid-acetic acid, pyridine-chiumrom trioxide, or potassium dichromate.  Suitable micro-organisms are fungi of genera Ophiobolus, Curvularia, Rhizopus, Saccharomyces, actinomycetes of genus Streptomyces or bacteria such as Bacterium putrificus, and several different micro-organisms may be used in the one operation.  Suitable starting materials are racemates of the hydronaphthalene and hydroindene series, and detailed examples illustrate the resolution of dl-D 4,10-3,8-dioxo-9-methyloctalin and dl-D 4,9-1,5-dioxo-8-methyl-hexahydro - indene using various organisms and dehydrogenating agents.  Specification 823,258 is referred to.
Patent GB-853768-A (GB)
Title: Improvements relating to cold-bending machines
Inventor: BUCKLE DENNISON KEITH
IPC: B21D7/022
Filed: 1957-08-14
Abstract: 853,768. Bending. COPPERAD Ltd., and SEYMOUR, E. W. Nov. 14, 1958 [Aug. 14, 1957], No. 25703/57. Class 83 (4). A bar or tube bending machine comprises two bending heads set side by side at a distance apart, each one head being adapted for being driven to serve as movable bending head and for coacting as fixed head with the other head while the said other head is serving as movable bending head. A tube 3, to be bent is positioned between grooved rolrollers 5a, 5b and is clamped. at 4. The roller 5a is carried by an upper T-member 17a fast on a shaft 16a rotatable by a pinion 15a turned by a quadrant 13a rocked through links 10a, 12, by the piston of a pneumatic cylinder 7a. The T- member 17a also carries a roller 19a movable vertically into or out of tube-engaging position by a pneumatic cylinder 20a. The roller 5b is similarly carried by a lower T-member 17b also carrying a roller 19b. To bend the tube, one T-member, say 17a, is locked against rotation by a locking pin 22a moved by a pneumatic piston and cylinder 24a, thus holding the roller 5a fixed and the other T-member 17b is turned so that the rollers 5b, 19b bend the tube around the roller 5a, a pad 2<1> on a pillar 2 of the machine acting as a back stop. The degree of bend is limited by a back stop 25 engageable by the arm 12 and a front stop 27 engageable by the quadrant 13a (13b). A limit switch 29 may stop operation of the machine.
Patent GB-1104178-A (GB)
Title: Tungsten bronze films
IPC: H01B1/00
Filed: 1965-06-17
Abstract: A substrate carries a continuous polycrystalline film, less than 5 m thick, of an alkali metal tungsten bronze, i.e. the compounds Mx WO3 where is 0 < x < 1 and M is an alkali metal.  The film may be formed by coating a substrate, e.g. by spinning, brushing or rolling, with a soln. of an inorganic salt of an acid of tungsten and an inorganic alkali metal compound, and firing in a reducing atmosphere, e.g. N2/H2, at above 400 DEG  C.  The salt may be an ammonium or an alkali metal o-, m- or p-tungstate, and the alkali metal compound may be MNO3, MNO2, M2CO3, MOH or a tungstate.  Mixed alkali metal tungsten bronzes e.g. Li0.3Na0.3 WO3 may be formed by using compounds of two alkali metals.  It is stated that in some of the bronzes, part of the alkali metal may be present as another crystal phase or as the free metal in the film. The substrate may be glass or an electrically insulating material.ALSO:A substrate carries a continuous polycrystalline film, less than 5m  thick, of an alkali metal tungsten bronze, i.e. the compounds MxWO3, where is 0< x <1 and M is an alkali metal.  The film may be formed by coating a substrate, e.g. by spinning, brushing or rolling, with a soln. of an inorganic salt of an acid of tungsten and an inorganic alkali metal compound, and firing in a reducing atmosphere, e.g. N2/H2, at above 400 DEG C.  The salt may be an ammonium or an alkali metal o-, m-, or p-tungstate, and the alkali metal compound may be MNO3, MNO2, M2CO3, MOH or a tungstate. Mixed alkali metal tungsten bronzes, e.g. Li0,3Na0,3WO3 may be formed by using compounds of two alkali metals.  It is stated that in some of the bronzes, part of the alkali metal may be present as another crystal phase or as the free metal in the film.  The substrate may be glass or an electrically insulating material, e.g. a glass-ceramic or ceramic material.
Patent GB-242212-A (GB)
Title: Improvements in card systems for filing record sheets or cards
IPC: B42F21/00
Filed: 1924-04-24
Abstract: 242,212. Marks, E. C. R., (Aluminum Index Co.). April 24, 1924. Tabs.-Index tabs, which are adapted to be adjustably and removably mounted upon a record card, comprise a holder member 8, Fig. 2, to receive the indicia, and a slidable member 9, Fig: 3, adapted to lock the holder member to the card. The record card 1, Fig. 4, is provided with a series of apertures 5 alternating with projections 6. The holder 8 is formed with offset tongues 10, which are adapted to project through the apertures 5 in the card 1 from behind, and the locking-member 9 is provided with slits 11, so that it can be slid over the tongues 10 in front of the card 1, in order to lock the holder to the card. The member 9 has an aperture 12 to receive one of the projections 6 on the card. The member 8 is preferably tilted backwards and bent upon itself, so as to form a flap 16, Fig. 11, behind which the label or other indicia is placed, the flap being provided with a window 17, Fig. 7, of celluloid &c. The lower edge of the, flap is held down by the upper edge of the member 9. The card 1 is formed' with a rib 7 to prevent adjacent cards from catching upon the member 9 or tongues 10, and the lower end of the member 8 is bent into the groove formed by the rib.
Patent GB-1341586-A (GB)
Title: Ultrasonic flow-velocity meters
IPC: G01F1/66
Filed: 1971-06-17
Abstract: 1341586 Ultrasonic flow-meter TOKYO KEIKI KK 17 June 1971 [25 June 1970 1 April 1971] 28538/71 Heading H4D In a fluid flow-meter of the type in which ultrasonic waves from a transmitter transducer are scattered towards a receiving transducer by particles entrained in the fluid and the Doppler frequency shift of the waves is measured, acoustic prisms are arranged on the fronts of the transducers to control the transmission and reception directions in response to temperature changes so as to compensate the measurement for associated changes in the acoustic velocity. Optional additional acoustic lenses provide focussed transmitter and receiver beams which intersect at essentially a single point in the fluid; hence the scattering region contains particles all having substantially the same velocity so that a precise Doppler shift is measured. The prisms change the included angle between the transmitter and receiver beams as a function of temperature. The Doppler frequency signal is converted to a pulse train which is used to give a digital or (after integration) an analogue indication of flow velocity.
Patent GB-501299-A (GB)
Title: Improvements in and relating to the manufacture of staple fibre and in apparatus therefor
IPC: D01G1/10
Filed: 1937-09-23
Abstract: 501,299. Stapling continuous filaments. COURTAULDS, Ltd., and COLLINGS, F. J. Sept. 23, 1937, No. 25840. [Class 120 (iii)j A bundle of continuous filaments or threads is cut into staple lengths by apparatus comprising a pair of coacting wheels each having a circumferential flange divided by slotted steps into segments which are alternately at a greater and lesser distance from the axle of the wheel so that as the wheels are rotated their surfaces are always practically in contact and the slots are in alignment in a direction substantially perpendicular, to the plane containing the axles of the wheels when the steps meet; one or more cutting edges are supported in a fixed position facing the direction in which the bundle is fed to the wheels which bend it in a zigzag or sinuous fashion, so that the aligned slots pass across the cutting edges and the bent bundle is severed between the two bends made by each pair of contacting steps, the segments.at the greater distance from the axles passing the cutting edge on the side remote from their respective axles and those at the lesser distance on the side nearer their respective axles. As shown the wheels 1, 2 are of the same diameter and each has a flange projecting at both sides of the wheel and divided into two segments 6 at a greater distance from the axles 3, 4 than the other two segments 5. The steps 7 dividing the flanges of the wheels into the segments are formed with slots 8, and the cutting edges 9 supported on rods 10 are disposed with the edges slightly above the plane of the axles. The bundle 12 is gripped and bent into zigzag or sinuous form by the contacting wheels and cut by the edges 9 where it passes across the slots 8 ; an adjustable guide may be disposed between the wheels above the cutting point to direct the bundle to any part of the flanges of the wheels. The flanges may have holes through which streams of air and water may be directed to assist in the removal of the cut filaments from the wheels and jets of air or water may also be directed on to the outsides of the wheels. The lengths of the segments determine the lengths cut and they may be arranged to cut constant or differing lengths and the steps may be arranged obliquely across the flanges to give an oblique cut across the band of filaments ; when the lengths cut and the segments are equal, the segments further from the axle of the wheel are longer than those nearer the axle. A rotating cutting edge may be used and may be driven by bevel gears from the axle of one of the wheels. According to the Provisional Specification the wheels are toothed with channels or grooves cut into the side of each tooth parallel to the axis of the wheel and currents of air or rods actuated by cams may be employed to eject the cut lengths from the teeth.
Patent GB-670677-A (GB)
Title: Improvements in or relating to electrical voltage splitting circuit arrangements
IPC: G05B11/01
Filed: 1949-10-07
Abstract: 670,677. Motor control systems. BROWN, W. J. Oct. 7,1949. [Oct. 8,1948] No. 25853/49. Class 38 (iii). The armature 58 and separately excited field 59 of a D.C. motor are controlled by a D.C. voltage splitting circuit, the parallel connected branches 24, 25 of which vary in different ways in response to variations of the control supply voltage. This supply 11 variable as by an adjustable potentiometer 14, is serially connected in opposition, negative terminals 13, 20 being interconnected, with a reference voltage supply 16 having an adjustable potentiometer 19. The branched circuits 24, 25, each comprise an impedance 26, 29 and a series connected rectifier 27, 30 and are connected between the supply and reference voltage potentiometer tappings, 15, 21, the rectifiers 27, 30, each conducting the same direction and having output terminals 28, 31 between themselves and their impedances 26, 29, which are in staggered relationship. In operation, Fig. 3, as the supply voltage es is increased the armature supply voltage e1, from terminals 20, 28 is increased in proportion until the supply and reference voltages e3,. e2 are equal, whereafter the rectifier 27 conducts and e1 remains constant. The field supply voltage e2 from terminals 22, 31 is constant until conduction of its rectifier 30, whereafter it falls due to the volt drop in its impedance 29, thereby weakening the field and further increasing the motor speed. Power connectors 56, 57 utilise the output volts e1, e2 to control the motor supply. In a modification, thermionic valves constitute the rectifiers, the field branch circuit valve being grid controlled to provide a non-linear field voltage e3 which compensates the non- linear motor speed-field voltage characteristic to yield a linear input volt-motor speed characteristic. The addition of a cathode resistance to the armature branch circuit produces, when it is unshorted, a rising characteristic e<SP>1</SP>1, while by taking the armature supply from different reference voltage tappings, the whole curve e4 may be varied. The voltages e1 or e4 may control the field. of generator where armature is connected to that of the motor. The whole circuit may be inverted by connecting the positive terminals of the supply and reference voltage sources.
Patent GB-872887-A (GB)
Title: Improvements in and relating to transducers
Inventor: PLANER GEORGE VICTOR
IPC: G01P15/08
Filed: 1957-08-19
Abstract: 872,887. Transducers. COSMOCORD Ltd. Aug. 19, 1958 [Aug. 19, 1957], No. 26097/57. Class 40 (1). [Also in Group XXXIX] A transducer comprises an element displaying the Hall or magneto-resistive effect mounted stationary in the air gap of a magnetic structure, and means for shunting the magnetic field across the gap to an extent depending on the magnitude of the parameter to be measured. In Fig. 1 an element 5 (e.g. of indium antimonide) is mounted on an insulated support in the gap of a permanent magnet 1, the gap being preferably only just large enough to take the element, and the pole pieces being reduced in width to intensify the field across the gap. A shunt path is provided by an armature 8 mounted on a resilient diaphragm 7 to which motion is transmitted from the stylus 16, damped by a friction pad 13. Movement of the stylus alters the flux through the element and an output can be obtained by the Hall or magneto-resistive effect. In an alternative form (not shown) the armature 8 lies over a further set of pole pieces arranged in zig-zag form to provide a long air gap. Also, the armature can be pivoted at its centre and have a differential action on two transducer elements. The armature can penetrate the shunt gap instead of lying adjacent to it. Temperature effects can be avoided by connecting two transducer elements as adjacent arms of a bridge circuit. The device can be used as a strain gauge, thickness gauge, accelerometer or pressure-sensitive device. The armature 8 can be omitted if the whole diaphragm is of resilient magnetic material. The element 5 can be one of those disclosed in Specification 872,886, but preferably has annular electrodes in the manner of a corbino disc.