baber/WOPTO huggingface dataset:
Patent GB-953113-A (GB)
Title: Method of preparing powders intended for the stamping of magnetic cores and other compressed parts made of powder
IPC: B22F3/00
Filed: 1961-05-05
Abstract: 953,113. Magnetic structures. LIGNES TELEGRAPHIQUES ET TELEPHONIQUES. May 5, 1961 [May 10, 1960], No. 16414/61. Heading H1H. In the preparation of a ferromagnetic body by compressing and heating a powder, methyl-2 pentanediol 2-4 and a plastics binding agent are added to the powder to act as a combined lubricant and binder. The plastics binder may be polyvinyl acetate, polyvinyl alcohol, or nitrocellulose. In one example a mixture of oxides of iron, manganese and zinc in the molecular proportions 52.5 Fe 2 O 3 , 28.3 MnO 1 . 33 , 19.2 ZnO were ground and 0.1% by weight Ca added. The hexylene glycol and binder were then added. The powder was pressed into toroids, heated to 500 C. for 15 hours, held at this temperature for 15 hours, and sintered at 1235  C. in nitrogen containing a little oxygen. The hexylene glycol and the plastic binder may each comprise 3% by weight of the powder mixture. Properties of the magnetic cores so formed are specified.
Patent GB-529615-A (GB)
Title: Improvements in means for electrically indicating instantaneous values of a variablesuch as rate of fluid flow
IPC: G01F1/06
Filed: 1939-06-05
Abstract: 529,615. Measuring fluid flow. LEMMENS, F. J. G., (Representative of Lemmens, G. J. F.), June 5, 1939, Nos. 16432, 31229 and 31230. [Class 40 (i)] [Also in Group XXVI] In a fluid meter, a bladed impulse wheel and its casing are made of non - magnetic material with the exception of two diametrically opposite wheel blades 30, Fig. 1, and two fixed guide vanes 34. The guide vanes are the pole pieces of an electromagnet 44, Fig. 4, outside the meter casing and the rotation past them of the two blades of magnetic material produces current pulses in the magnet windings which are used to secure the rotation of a ratchet toothed wheel 52 of an indicating or registering device. In the normal condition, the driving magnet of the registering device is energized via its winding 70 and self-operated springs 74, 76, the circuit of electromagnet 44 is completed via springs 78, 80, and the driving pawl 54 is in its highest position. When the magnetic blades pass the guide vanes, the impulse induced in winding 46 on electromagnet 44 de-energizes the driving magnet and the pawl drops, breaking the contact between springs 74, 76 to complete the de-energization and finally dropping behind the next tooth and allowing the springs 74, 76 to close again. The driving magnet is thus re-energized and the pawl drives the ratchet wheel one step. During the relapse of the driving magnet, the electromagnet 44 is disconnected and a third winding on the driving magnet is shortcircuited to delay its re-energization. By this means, electromagnet 44 is not connected up until the magnetic blades are clear of the guide vanes, and no load is put on the fluid meter.
Patent GB-624265-A (GB)
Title: Improvements relating to variable speed gear mechanisms
IPC: F16H3/36
Filed: 1947-06-23
Abstract: 624,265. Manure distributors. CLAY (WELLINGTON), Ltd., J., and CLAY, J. June 23, 1947, No. 16492. [Class 6(i)] [Also in Group XXIV] In a machine for spreading artificial fertilizers, a plurality of pans 2 is fed from a hopper 1 and is rotated by a shaft 12 driven through bevel gears 10, 11 from a square shaft 7. The shaft 7 is driven through a change speed gear of the type where a pinion 8 is engageable with any of a plurality of concentric rings of facially projecting teeth 6 on a disc 5 driven from the ground wheels. Rotatable members 3 are provided for discharging the material from the pans 2.
Patent GB-617982-A (GB)
Title: Improvements in or relating to bearings
IPC: F16C17/06
Filed: 1946-05-30
Abstract: 617,982. Bearings. BRIX, V. H. May 30, 1946, No. 16516. [Class 12 (i)] A journal and thrust bearing, wherein convergent oil films are formed between the rubbing surfaces of the bearing, comprises two pairs of races, the two races of each pair being perpendicular to the races of the other pair, parallel to one another and relatively rotatable, and a set of freely floating pads being inserted between the two pairs of races such that each pad has one pair of oppositely-directed faces bearing on one pair of races and a second pair bearing on the other pair of races, each face having its centre of pressure displaced relatively to the centre of pressure of the oppositelydirected face in the direction of motion of the pad relative to the corresponding race. The pads are so shaped, for example by recessing the ends of the faces, that the centres of pressure produce a couple which effects the necessary tilting of the pad. A rotating member 50 has an end of reduced diameter providing a radially-extending thrust race 51 and a circumferential radial-load race 54 for co-operation respectively with a race 52 and a race 55 on a stationary member 53; arcuate pads 56 are disposed end to end between the members 50, 53, each pad having two pairs of rubbing faces, one pair co-operating with races 51, 52, and the other pair with races 54, 55. The ends of each pad are cut away, Fig. 2, to result in convergent oil films, when the member 50 rotates in the direction of arrow 60 with respect to the member 53. If the direction of relative rotation is reversed, the bearing will tend to jam since the couple due to the load transmitted will assist the frictional couple to tilt the pads; to avoid this, two journal and thrust bearings may be arranged, one between the member 50 and an intermediate member, and the other between the intermediate member and the member 53, such that the set of pads of one bearing is operative in one direction of rotation and the other set is operative in the other direction. 'Instead of displacing the rubbing faces of the .pads as in Fig. 2, the faces may be otherwise shaped to obtain a displacement of the centres of pressure although the ends of the faces are in line radially of the bearing axis. The pads may be made of material such as bronze or aluminium alloy according to the compressive strength required, and may be machined, sintered or pressed.
Patent GB-417076-A (GB)
Title: Improvements in and relating to flap gates for closing the entrances and divisions of dry and wet docks
IPC: E02B7/20
Filed: 1933-06-09
Abstract: 417,076. Hinges. BOX, E., Lindisfarne, Stoneyhurst Road, South Gosforth, Northumberland. June 9, 1933, No. 16528. [Class 65 (ii).] A hinged drop gate for docks and locks has a keel of two radii, an inner part R being larger than the outer part R<1>, so that at the base there is formed an abutment j. The sill is correspondingly formed of two parts f, f with an abutment h between them, so that when the gate is moved to the vertical position the parts j, h meet. If the tidal water outside the gate is high, the pressure is taken by the parts R, f ; if it is low, the pressure is taken by the parts R<1>, f<1>.
Patent GB-724613-A (GB)
Title: Improvements in thermionic valve amplifiers
Inventor: BOSTON DAVID WHITEHEAD
IPC: H04B15/02
Filed: 1953-06-16
Abstract: 724,613. Valve circuits. BRITISH ACOUSTIC FILMS, Ltd. June 16, 1953, No. 16551/53. Class 40 (6). In a thermionic valve amplifier of type having its input stage, H.T. and filament circuits fed with power from a supersonic oscillator, the oscillator also provides the grid bias for the output stage. The Figure shows an amplifier comprising an input stage V1 feeding a pushpull output stage V2A, V2B. In accordance with Specification 665,967 the H.T. and heater supply for V1 is derived from a conventional supersonic oscillator V3 and V1 is coupled to the output stage through a balanced transformer so that hum pick-up from the mains supply feeding the oscillator and output stage is minimized. The grid bias for the output stage is obtained either from the grid-bias circuit C14, R15 of the oscillator or from a rectifier coupled to the output of the oscillator (Fig. 3, not shown). When the amplifier is used for reproducing film or magnetic tape recordings the oscillator may also supply the power for the lamp or the bias and erase voltages.
Patent GB-940615-A (GB)
Title: Electric switches having interlocked covers
Inventor: LOWE SIDNEY ROLAND
IPC: H01H21/06
Filed: 1962-05-01
Abstract: 940,615. Snap-action switches; switch covers. MIDLAND ELECTRIC MANUFACTURING CO. Ltd. May 1,1962, No. 16581/62. Addition to 785,947. Heading H2B. A switch having an interlocked cover 25 comprises the combination of a handle 27 and switch-actuating spindle 26 carried by the cover and a shield 19 secured to the switch and having therein an elongated slot 21 giving access to an angularly movable claw 15. The claw is connected to a linkage 18 which is in turn connected to an endwise slidable bar 10 which carries or operates contacts so that angular movement of the claw effects endwise movement of the bar. There is also provided a key piece 30 which is secured to the spindle 26 and which is engageable with the claw 15, the slot 21 and the key piece 30 being arranged so that the cover 25 can be opened only when the switch is in the " off " position. A further plate 31 is secured to spindle 26 and has an elongated member 32 pivotally connected to it and surrounded by a compression spring 34 which goes over centre to positively locate the handle in both its " on " and " off " positions.
Patent GB-140291-A (GB)
Title: Improvements in artificial bait
IPC: A01K85/12
Filed: 1919-07-02
Abstract: 140,291. Roots, J. D., (SpecialitÚs et NouveautÚs Soc. Anon.). July 2, 1919. Spinning-tackle. - A spinning bait consists of a finned head part 3 and a heavier body part 1, both mounted to revolve freely between washers 6, 5 on a wire 2 connecting the line and the hook, and the head having a tooth 10 adapted to engage in a notch 11 on the body. When drawing in the line, the tooth and notch are engaged, so that both parts spin together; but when the bait is diving, that is, without tension on the line, the parts become disconnected and the head alone spins.
Patent GB-457927-A (GB)
Title: Improvements in or relating to safety razors
IPC: B26B21/32
Filed: 1935-06-08
Abstract: 457,927. Safety razors. HEINLEIN, C. H., 7, Clarkson Street, Sheffield. June 8, 1935, No. 16712. [Class 30] The blade is clamped between means carried by the handle and the underside of the guard. In the form shown in Fig. 1, the handle 15 is rotatably secured at 16 to the guard 10, and is formed with an oblong cam 17, a corresponding slot being formed in the blade which is passed along the handle and over the cam. The handle is then turned through a right-angle to flex and clamp the blade against the underside of the guard. The latter is bent down at the sides which are slotted at 13 so that the cutting edges of the blade protrude. In another form, Fig. 3, the handle is hollow and movable axially and rotatably about a fixed stem 22. When the blade has been passed over the cam 17 the handle is pushed towards the guard and carries with it the cam 17, which is then rotated by a pin 26 and helical part 25 of a slot 24. The handle is then rotated whereupon a pin 29 on the stem engages a helical part 28 of a slot 27 in the handle and forces the cam towards the guard to flex and clamp the blade. In Fig. 6, clamps 33 pivoted at 34 to a bracket 32 fast to the guard are moved down upon the blade by means of links 37, a revoluble yoke 35, and a screw connection between the handle and a spindle 38 carrying the yoke. In another form pivoted longitudinal clamps are operated by worm gearing, or by a rack movable axially in similar manner to the yoke 35. Different shaving clearances may be provided by slots 13 of different widths or by cranking differently the bridges 14 to off-set the guard-bars 11 from the base 10.
Patent GB-400713-A (GB)
Title: Improvements in or relating to bells
IPC: G10K1/074
Filed: 1932-06-14
Abstract: 400,713. Mechanical bells. EVERRED & CO., Ltd. and MEREDITH, W. C., Surrey Works, Smethwick, Staffordshire. June 14, 1932, No. 16762. [Class 13.] A mechanical door-bell comprises a pushbutton 4 slidably mounted in a plate 5 outside the door 6 and engaging a shaft 7 attached to a lever 8, Fig. 3, one end of which is formed as a rack engaging a pinion 13, the lever 8 being normally kept in one extreme position by a spring 9. The spindle 14 carrying the pinion 13 also carries a spur or toothed wheel 15 meshing with a second spur wheel 16 at right angles thereto, the latter also meshing with a pinion 17 carrying a slotted yoke member 18, Fig. 2, in the slots of which are two dumb-bell or I-shaped strikers 19 which fly outwards on rotation of the pinion 17 to strike the bell 12. One limb of an L-section bracket 10 carries the lever 8, wheels 13, 14 and bell 12, while the other carries the wheels 16, 17. The racked end of the lever 8 is restrained from lateral displacement by a washer 20 on the end of the spindle 14.
Patent GB-116108-A (GB)
Title: Improvements in or relating to Instruments for Indicating Inclination.
IPC: G01C9/12
Filed: 1917-05-22
Abstract: 116,108. Sage & Co., F., and Feary, N. A. T. N. May 22, 1917. Clinometers. - A clinometer for air craft &c. comprises a casing filled with liquid and divided into two compartments, in one of which is a buoyant member B carried by an arm b on a spindle b<3>, said member serving as an indicating-needle, the needle a n d co-operating scales being preferably coated with luminous paint. The spindle b<3> passes into the second compartment, where it is provided with a vane b<4>, the lower portion of which is provided with a buoyant member b<6> on each side.
Patent GB-688110-A (GB)
Title: An improvement in or relating to brakes for rotating members having self-regulated substantially constant braking torque
Inventor: TUPLIN WILLIAM ALFRED
IPC: G05D13/00
Filed: 1951-06-11
Abstract: 688,110. Self-regulating brakes. BROWN & SONS (HUDDERSFIELD), Ltd., D. June 11, 1951, No. 16814/52. Divided out of 688,042. Class 103 (i). The invention concerns improvements in brakes for rotating members of the type that are self-regulated by the frictional drag on the brake members so that the torque is maintained substantially constant. In a brake of the externally contracting type, as shown in Fig. 1, two shoes a and b are pivoted together at c and have lugs f and g pivotally connected at a<SP>1</SP> and b<SP>1</SP> to two triangular shaped levers g andf, which are also interconnected by a further pivot h. The brake is applied by turning a nut e<SP>2</SP> so as to compress a spring e<SP>3</SP> between the nut and the lug on the shoe b. The rotation of the shoes caused by the friction drag when they are tightened on the shaft d is resisted by the compression of a spring n by a link m pivotally suspended from an arm k on the shoe a. At a certain compression of the spring n, one or the other of the levers f or g is arranged to abut an adjustable stop i or j. This causes the lever f or g to be rotated about the pin h in such a way as to move the shoes against the spring e<SP>3</SP> and thus relieve the brake pressure so that in this way the braking torque is kept substantially constant. In a second embodiment, Fig. 2, as applied to an internally expanding brake, the shoes p and r are pivoted on a back-plate having an arm s<SP>3</SP> to which is pivotally linked the rod m arranged to compress spring n. Crossed levers u and v are pivotally connected to the top ends of the shoes and are interconnected by a pin w between which and a fixed bracket s<SP>1</SP> is interposed a compression spring y. The spring y normally exerts a steady pressure on the linkage tending to hold the shoes p and r in engagement with the drum. Rotation of the shoes and back-plate is resisted by spring n and when the end of one or the other of levers u or v engages adjustable stops z or z<SP>1</SP>, the linkage is moved in such a way as to reduce the shoe pressure on the drum and again the torque is maintained substantially constant.
Patent GB-1017501-A (GB)
Title: Vacuum sealing jackets
Inventor: SNOWMAN JOHN WASHINGTON
IPC: B23K1/008
Filed: 1962-05-02
Abstract: 1,017,501. Soldering. BRITISH OXYGEN CO. Ltd. May 13, 1963 [May 2, 1962], No. 16850/62. Heading B3R. In making a brazed or soldered vacuum seal between the tubular end of a jacket and a cap therefor the parts to be joined are heated in a non-contaminating atmosphere or vacuum to a temperature approaching the melting-point of the solder or brazing metal, the parts are engaged, the temperature is increased to melt the brazing metal under vacuum and the vacuum is released. To secure an end cap 13 to a tube 11 forming a vacuum jacket about a pipeline 12 by brazing, the tube, the pipeline and cap are disposed in a sealed enclosure 14, the tube 11 passing through a seal 15 and a hollow push-rod 16 projecting through a seal 17 to fit over the pipeline. The enclosure is connected to a vacuum pump through valve 19 and may be connected to forming gas, i.e. 90% nitrogen, 10% hydrogen mixture, through valve 20 and an induction coil 21 is arranged in the enclosure about the parts to be joined. With brazing metal applied to the surfaces to be joined the enclosure 14 is evacuated and then forming gas may be supplied to the enclosure and the cap and jacket end are heated by the coil 21 to a temperature just below the melting temperature of the brazing metal and then the enclosure is again connected to the vacuum pump. The cap is pressed down into the tube 11 by the rod 16 and the temperature is increased to melt the brazing metal. After heating is stopped forming gas may be re-admitted to the enclosure and the joint is allowed to cool. Resistance heating may be used instead of induction heating and the brazing or solder metal may be soft or hard solder and may be applied as a strip wound round the cap 13 or inserted into the tube 11 or as a washer or as a paste made from powdered alloy.
Patent GB-840889-A (GB)
Title: Improvements relating to cathode-ray display apparatus
Inventor: BURN KENNETH COLLETT
IPC: G11C13/04
Filed: 1956-06-01
Abstract: 840,889. Television. FERRANTI Ltd. May 29, 1957 [June 1, 1956], No. 16926/56. Class 40(3). [Also in Groups XL(a) and XL(c)] The frame deflection component of a rectangular raster produced on the screen of a cathode-ray tube 13 is effected in discrete steps under the control of pulses derived from impingement of the beam on a comb-like electrode 14 the individual fingers 15 of which define the position of each line trace. Each pulse changes the state of a two-state device 22 the first state of which arrests the operation of the frame scanner 12 causing it to produce a constant deflection field having the value appropriate to the position of the particular line and the second state of which allows the frame scanner to operate and deflect the beam until it impinges on the next finger 15 whereupon the device 22 reverts to its first state causing the frame scanner to maintain a constant field appropriate to the position of the next line. Since the frame deflection field has a constant value during line deflection the trace and retrace (fly-back) lines are superimposed. If the apparatus should start with device 22 in its second state when it should be in its first state a time switch 24 which is rendered active by the second state of device 22 triggers the latter back to its first state after an interval about 10% longer than the time needed for the beam to pass from one finger to the next. If the apparatus starts with device 22 in its first state when it should be in its second state switch 24 is not operated and the apparatus corrects itself after one line scan. If the beam is blanked out during line fly-back it is necessary to provide a brightening pulse near the end of each fly-back to enable the beam to produce the required pulses. Alternatively, the comb-like electrode 14 may be placed at the other side of the screen in which case brightening pulses are only necessary if the fingers are so short or so widely spaced that the fly-back begins before the next tooth is reached (Fig. 4, not shown). Reference is made to the use of the apparatus in colour television systems where the scanning lines are arranged to coincide with lines of fluorescent powder of different colours for successive lines and to the scanning of information carrying punched cards.
Patent GB-848286-A (GB)
Title: Process for the production of basically substituted derivatives of 4-aza-phenthiazines
IPC: C07D513/04
Filed: 1958-05-28
Abstract: The invention comprises compounds of the general formula: <FORM:0848286/IV(b)/1> and their acid addition salts, wherein X and Y represent oxygen or sulphur atoms, Alk1 and Alk2 represent straight or branched alkylene groups having 2 or 3 carbon atoms, R1 and R2 represent unsubstituted alkyl radicals containing 1 to 4 carbon atoms, which groups R1 and/or R2 can, together with the nitrogen atom, or together with the alkylene group Alk2, be closed to form a ring, which, if desired may contain a further hetero atom, and a process for the preparation thereof by (a) reacting a compound of the general formula:  <FORM:0848286/IV(b)/2> in which Z represents a halogen atom or an alkoxy group with a compound of the general formula:  <FORM:0848286/IV(b)/3> at an elevated temperature and, if desired, in the presence of an alkaline condensation agent, with hydrogen halide or alcohol being split off or (b) by reacting a compound (II) with a compound of the general formula: <FORM:0848286/IV(b)/4> to form a compound of the general formula: <FORM:0848286/IV(b)/5> and reacting (V) with an amine of the general formula:  <FORM:0848286/IV(b)/6> Specification 817,558 is referred to.
Patent GB-626418-A (GB)
Title: Improvements in magnetically operated mercury electric switches
IPC: H01H29/16
Filed: 1947-06-28
Abstract: 626,418. Magnetic switches. GINN, S. R. June 28, 1947, No. 17116. [Class 38(v)] A switch of the kind in which an armature 8 is normally held by a magnet 16 out of bridging engagement with mercury contact cups 4, 5, in a sealed container 3, is operated by a rotatable drum 17 carrying a layer of flux-diverting magnetic material 19 which allows the armature to drop as it passes under the magnet poles. The drum may carry a plurality of strips 19, and may be motor driven.
Patent GB-1030664-A (GB)
Title: Improvements in furnace or the like chambers
Inventor: PURPLE LESLIE PERCY
IPC: F22B37/20
Filed: 1964-04-24
Abstract: 1,030,664. Furnace casings. BABCOCK & WILCOX Ltd. April 22, 1965 [April 24, 1964], No. 17131/64. Heading F4B. [Also in Division F2] A pendantly supported steam generator chamber wall comprises horizontal heat exchange tubes 6 and buckstays 5 to afford wall support against transient pressure increases within the chamber. Adjacent walls are tied together at least at one location through adjacent buckstays 5 by hydraulic dampers 20 (see Division F2) adapted to resist rapid outward movement of the buckstays due to an explosion within the chamber, but to permit gradual inward and outward movement due to thermal expansion. The tubes 6 are pivotably mounted in sets on upright channel beams 9 which are slidably connected by plates 10 to spaced upright support tubes 7 forming part of the circulatory system. The support tubes 7 also carry channel beams 14, plates 15 and buckstays 5 in a manner permitting differential expansion of the wall in a direction along the longitudinal axis of the buckstay. The buckstay 5 is also connected to the corner of the unit by a swing link 38. In modifications the damper is connected between adjacent buckstays at 45 degrees (Fig. 6, not shown), or two dampers at right-angles to each other may be used (Fig. 5, not shown).