baber/WOPTO huggingface dataset:
Patent GB-632652-A (GB)
Title: Improvements in or relating to dynamic balancing machines
IPC: G01M1/22
Filed: 1946-08-14
Abstract: 632,652. Measuring unbalance of rotors. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Aug. 14, 1946, No. 24156. Convention date, Aug. 31, 1945. [Class 40 (i)] [Also in Group XL (c)] The dynamic unbalance of a rotor is measured by comparing the magnitude and phase of a voltage generated by pick-ups actuated by the rotor bearings, with a reference voltage generated at the same frequency and a fixed amplitude by an electronic oscillator photo-electrically synchronized with the rotor, and controlled in phase relative to an arbitary point thereon. The rotor bearings 2, 3 are movable in a horizontal plane to actuate magnetic pick-ups 5, 16 connected to a selective filter network 17, and thence through a switch 19 and a narrow-pass-band filter 6, tuned to the frequency of rotation, to a 90 degree dephasing unit 18 feeding the current coil of an indicating- wattmeter. A bright spot 8 on the rotor 1 reflects light from a lamp 9 onto a photoelectric cell 11 connected to a device 12 which generates pulses which are adjustable in time phase relative to the light pulses [see Group XL (c)]. These pulses are used to synchronize an oscillator 13, tuned to the frequency of rotation, and connected through an amplifier 14 to the voltage coil of the wattmeter. The amplifier oscillator output may also be connected through the switch 19, filter 6, and dephasing unit 18 to the current coil of the wattmeter to adjust the dephasing unit for zero indication, i.e. 90 degree dephasing. To find the angular position of the unbalanced masses, the output from one of the pick-ups is selected from the filter 17 (by a switch not shown), and connected through the normal position of the switch 19 to the wattmeter. The pulse generator control knob is adjusted for zero wattmeter indication, i.e. pick-up and oscillator voltages in phase, and the position read from a scale on the rotor illuminated by a rectifiertype neon lamp fed from the oscillator output and arranged to fire on the positive half-cycles. The magnitude of the unbalance is obtained from the wattmeter deflection when the phase of the oscillations has been adjusted by the pulse - generator - control for maximum deflection, i.e. the two voltages in phase at the wattmeter, which has previously been calibrated with a simple rotor of known unbalance.
Patent GB-1013930-A (GB)
Title: Parametric amplifiers
IPC: H03F7/04
Filed: 1962-06-22
Abstract: 1,013,930. Parametric amplifiers. NIPPON ELECTRIC CO. Ltd. June 22, 1962 [June 24, 1961], No. 24168/62. Heading H3B. A parameter amplifier has wave filters for the input and pump waves S, P and optionally for the output wave S0, which filters have different input and output coupling coefficients and together with the transmission lines which connect them to the variable reactance element form resonant circuits at the input output and pump frequencies. Two embodiments of suitable filters are described. The one shown in Fig. 5 for use in a coaxial cable comprises a cavity into which the centre conductors S5, S6 extend for different distances and the other (Fig. 6, not shown) for use in a waveguide is formed by having different sized windows in two partitions across the waveguide. Fig. 11 shown an embodiment for use with coaxial lines having a line 118, 119, 113 for each of the input, output and pumping frequencies and a fourth line 114 terminated by a variable reactance diode 115. Fig. 13 shows an embodiment for use when the pumping frequency is almost twice the signal frequency, the cut-off frequency of the waveguide 152 being greater than the signal frequency.
Patent GB-260562-A (GB)
Title: Improvements in drip preventing devices for bottles, flasks, demi-johns and like liquid-containers
IPC: B65D23/06
Filed: 1926-09-30
Abstract: 260,562. Brevex Soc. Anon. Oct. 30, 1925, [Convention date]. Discharge and drip-retaining devices.-A discharge and dripretaining device comprises a cylindrical tube 2, of metal, celluloid, glass, &c. flared at the top to form a funnel with a thin rim. The other end is cut into tongues 3, 3<1>, 3<11>, sufficiently elastic to yield when the device is inserted in a bottle neck and to spread out and exert a pressure on the walls. An elastic ring 5 forms a circular joint between the device and the rim of the bottle.
Patent GB-816002-A (GB)
Title: Improvements in and relating to screening cans for thermionic valves, condenser units or other electrical components
Inventor: CLEWES ANTONY BRASHER
IPC: H01J5/12
Filed: 1956-08-08
Abstract: 816,002. Holders for thermionic valves; electrostatic screens for couplings. CARR FASTENER CO. Ltd. Aug. 1, 1957 [Aug. 8, 1956], No. 24340/56. Class 38 (1). ). [Also in Groups XXV and XL (c)] Means for mounting a screening can on an apertured support comprise a metal sleeve having integral tabs extending axially from one end, one or more axial slits at the other end and means for making detachable locking engagement with co-operating means on the screening can when it is telescoped over the other end of the sleeve. As shown, a sheet-metal blank is rolled to form a mounting sleeve 1 having a tapered end 2, an axial slit 1a, fixing tabs 3 and an annular rib 5 for engagement with an annular groove 6 of a screening can 4. The can 4 may be apertured at its upper end and may be provided with a spring valve retainer 7. The tabs 3 may be passed through holes in a printed circuit board and soldered to earthed conductors. The tabs 3 may be clinched under the board before soldering.
Patent GB-731581-A (GB)
Title: Improvements relating to dynamo-electric machines
Inventor: MAGGS ARTHUR HEMBOROUGH
IPC: H02K19/36
Filed: 1953-09-03
Abstract: 731,581. A.C. generators. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 31, 1954 [Sept. 3, 1953], No. 24411/53. Class 35. A synchronous A.C. generator having a rotating armature 11, 12, 13 has an auxiliary commutated winding 22 providing D.C. excitation for the stationary field winding 25, 26, 27, which is connected in series with an armature reaction compensating winding 35 which permits the machine to be run as a D.C. motor from terminals 36, 37 for starting up. The compensating winding is placed in the stator slots or, in the case of salient pole machines in pole-face slots. Specifications 693,011 and 699,670 are referred to.
Patent GB-730452-A (GB)
Title: Improvements in panel-mounting cases for electrical apparatus
Inventor: MARTIN GUY CHRISTIAN
IPC: H02B1/044
Filed: 1951-04-02
Abstract: 730,452. Clamp fastenings. ENGLISH ELECTRIC CO., Ltd. March 28,1952 [April 2, 1951], No. 24493/53. Divided out of 714,686, [Group XIX]. Class 44. [Also in Group XIX] A flanged case for electrical equipment is mounted in an aperture in a panel with the aid of detachable brackets 4 having portions 5 for engagement with slots provided by plates 2 secured to the casing, and screws 7 which engage the rear of the panel. Bent up side wings 8 bear against the plates 2 to limit bending of the brackets. Plates 11 with resilient tongues 12 are provided for holding the casing in the hole while the brackets are being fitted.
Patent GB-1131995-A (GB)
Title: Improved link for flexible articles of jewellery
Inventor: KING ROGER MILNER
IPC: A44C5/10
Filed: 1967-05-26
Abstract: 1,131,995. Bracelets. ROGER MILNER KING Ltd. 26 May, 1967, No. 24568/67. Heading A3H. A bracelet comprises staggered rows of series of links 4 connected by cross pins 5, the side walls of each link being narrower than the upper and lower walls. The lower corners 7 of each link are rounded and the side walls slope towards the corners.
Patent GB-1527480-A (GB)
Title: Combined engine casing and gear box unit
IPC: F02B75/18
Filed: 1977-06-13
Abstract: 1527480 Engine/gear-box casings JAWA NARODNI PODNIK 13 June 1977 [13 Sept 1976] 24576/77 Heading F1B The joining plane of a main casing 1 and a detachable part 2 contains the crank-shaft 4 axis and the axis of an intermediate shaft 5 between the crank-shaft and the gear-box input shaft 15, but does not intersect either the cylinder/crankcase joint surfaces 8 or the joint surfaces of the main casing and a second part 6 detachable to allow removal of the gear changing mechanism. As described, there are two in-line cylinders 7 and casing end covers (12, 13), Fig. 2 (not shown), and the engine mounting points 9, 10, 11 are all on the casing 1.
Patent GB-238410-A (GB)
Title: Improved mortise lock
IPC: E05B55/00
Filed: 1924-10-17
Abstract: 238,410. Aitken, R., and Vickery, W. T. Oct. 17, 1924. Locking sliding latches; locks, cases for; reversibde latches.-A bodily reversible mortise latch slides in a tube above which is secured a rectangular casing containing the follower and the locking mechanism. The round latch d slides in the tube e to which is secured the casing containing the follower b and the locking mechanism. A fore-end plate g forms the attaching means. The follower b acts on a rod c fixed to the latch and projecting through a slot in the tube e. The rod c limits the forward movement of the latch. The latch is locked in the shot position by a quadrant a engaging a recess in the latch. The quadrant is operated by a key which first moves aside the pivoted member j so that a stud thereon no longer holds the lever i in engagement with the quadrant. Further turning of the key rocks the lever i out of engagement with the quadrant and rocks the quadrant into engagement with the latch. The lever i then drops into engagement with the quadrant to lock it. A spring k also engages serrations in the quadrant to hold it in position.
Patent GB-498174-A (GB)
Title: Improvements in or relating to darts
IPC: F42B6/00
Filed: 1937-09-10
Abstract: 498,174. Darts. BROADWAY, A. D. Sept. 10, 1937, No. 24727. [Class 132 (iii)] A dart is provided with means whereby the centre of gravity of the dart can be adjusted as required without alteration of its weight. A threaded sleeve d is adjustable along the threaded part b of the stem and can be locked in position by a lock-nut e. A portion c of the stem and the outside of the parts d and e, are milled. The stem may be of metal, wood or synthetic resin, and the tail f carrying the flight h is of wood.
Patent GB-446401-A (GB)
Title: Improvements in or relating to the starting of injection internal combustion engines
IPC: F02M1/04
Filed: 1935-09-05
Abstract: 446,401. Starting ; vaporizers. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. Sept. 5, 1935, No. 24740. Convention date, Sept. 26, 1934. Addition to 438,769. [Classes 7 (iii) and 7 (v)] To facilitate the starting of a self-ignition heavy-oil engine, a stream of air is passed across the mouth of a spraying nozzle 20 for heavy oil and the resulting mixture is drawn through a heat zone and supplied to the engine, the heated mixture being capable of igniting during compression. As shown in Fig. 1, air is drawn through openings 25 in the wall of the fuel chamber n, and past spraying orifices 22 situated in the central opening of a funnelshaped cover 24 for the chamber n. The mixture passes over an electric heating coil o and is drawn through the branch pipe x and the air induction pipe m to the engine. The normal air inlet to the pipe m is closed at starting by a valve y, which may have apertures 32 covered by leaf springs which open under heavy suction ; during normal running, the valve y closes the branch pipe x and the leaf springs cannot open the apertures 32. A supplementary light fuel may be admitted above the heating coil o by a nozzle 29 fed from a cup 27, Fig. 2.
Patent GB-442557-A (GB)
Title: Improvements in golf clubs
IPC: A63B53/04
Filed: 1934-08-28
Abstract: 442,557. Golf clubs. BINGHAM, M., Cooden Beach Golf Club, Bexhill-on-Sea. Aug. 28, 1934, Nos. 24773 and 33024. [Class 132 (ii)] A steel golf-club head has part or the whole of its striking face 3, Fig. 2, formed of a softer steel or of iron. The head is preferably formed of a carbon or stainless steel and has the central part of the striking face softened by a heat and/or chemical treatment. Alternatively, the face is welded to the head or accommodated in a recess therein. The head tapers in thickness towards the upper edge 8 and is provided with a flat bulged sole 6. Shafts.-The tubular metal shaft 1, Fig. 4, is of elliptical cross-section from the head up to an intermediate part of the grip portion where it resumes its cylindrical form. The major axis of the ellipse is disposed parallel to the striking face. In a modification, Fig. 6, the shaft is cylindrical, at least for the major part of its length, and has the walls of its upper part 9 thinned down to give the requisite flexibility.
Patent GB-1210251-A (GB)
Title: Improvements relating to decorative surfacings
Inventor: GOODMAN SIDNEY
IPC: B44C1/20
Filed: 1967-05-30
Abstract: 1,210,251. Decorative surfaces. TERCOL Ltd. 29 May, 1968 [30 May, 1967], No.24814/ 67. Heading B2E. A decorative surface is produced in situ by providing a base layer of a hardenable material on a substantially rigid substrate, embossing the surface of the layer remote from, the substrate and allowing the layer to harden, and subsequently applying one or more overlying layers of a hardenable material to the embossed surface. The base layer and the or each overlying layer is the same but of a different colour. A final layar may be applied so as to provide an overall level surface and when adequately cured the surface of the multi-layer coating is ground to expose the desired pattern; or the final layer may be translucent so that the underlying colours are rendered partially visible without grinding the layer to expose the pattern and so as to provide an overall level surface. One of the succeeding coats, after the first embossed coat, may also be embossed to produce a superimposed pattern. The hardenable material may be such that (1) harden at ambient temperatures, e.g. based on amino resins, phenolic resins, polyvinyl acetate, plaster of Paris, cement, unsaturated polyester resins, epoxy resins, or polyurethanes; (2) are heat-curable, e.g. based on unsaturated polybutadiene or unsaturated polybutadene plastisols; or (3) are heat-fusible which harden on cooling, e.g. polyvinylchloride, an acrylicpolymer, cellulose aceto-butyrate, a polyamide, polystyrene or a thermoplastic polyurethane. The decorative surface may be a floor covering, interior or exterior wall finish, table surface, tiles or panels. The coatings may be applied by brush or spray.
Patent GB-279234-A (GB)
Title: Improvements in or relating to lapping machines
IPC: B24B37/08
Filed: 1926-10-07
Abstract: 279,234. B.S.A. Tools, Ltd., and Ogilvie, W. Oct. 7,1926. Centreless grinding.- In a machine for lapping rollers &c. and having the work located in slots in a movable plate between two laps, one or both of which may rotate, the work is prevented from contacting with the sides of the slots by V-blocks adjustably mounted in the slots and engaging the ends of the work. The blocks comprise two parts 2, 3, one on each side of the plate 5 and held in adjusted position by screws 7; the blocks have V-shaped inner ends 6 which contact with the work-pieces 1. For treating short pieces of work, intermediate V- blocks 11 are employed having flanges 12, the blocks being held in adjusted position in the slots 4 by screws 13 engaging the flanges.
Patent GB-1401391-A (GB)
Title: Oscillators
IPC: G11B20/14
Filed: 1973-05-24
Abstract: 1401391 Automatic frequency control, oscillators HONEYWELL INFORMATION SYSTEMS Inc 24 May 1973 [30 May 1972] 24980/73 Headings H3A and H3T A phase locked oscillator, Fig. 2b, comprises: a capacitor 132 connected between a reference potential (earth) and the collector of a first transistor 125, the collector being also connected to the emitter of a second transistor 126; a first resistor 123 connected between another reference potential (+12 v) and the emitter of the transistor 125; a second resistor 135 connected between the base of the transistor 126 and the emitter of another transistor 128, the base of transistor 128 being also connected to the first reference potential (earth); a third resistor 134 connected between the second reference potential (+12 v) and the collector of a further transistor 127, the collector being also connected to the base of transistor 126, whose collector is cross-connected to the base of transistor 127; a diode 133 connected between the collector of transistor 126 and the collector of transistor 128; a fourth resistor 136 connected between the collector of transistor 128 and a third reference potential (-6V); a fifth transistor 112 having its collector coupled by a fifth resistor 110 to the emitter of transistor 125 and having a control signal applied to its base; and an oscillator output circuit coupled to the collector of transistor 127. On switching on, I, flows turning on transistor 128, and producing a voltage across resistor 135 which turns off transistor 126. Current I 3  also flows turning on transistor 125 to charge capacitor 132 until transistor 126 turns on, causing transistor 127 to turn on, and 128 to turn off. Capacitor 132 now discharges until transistor 128 turns on again and the cycle repeats. The changes at the collector of transistor 127 cause transistor 129 to switch on and off to produce output pulses. The pulse rate is determined by the charging time of capacitor 132, which is varied by control signals applied to the base and emitter of transistor 125, in dependence on a received data signal with which it is desired to synchronize the oscillator. The oscillator output is fed via variable divider 15 to clock input 28, Fig. 2a, and the received data signal is applied at input 27. The data signal is differentiated to produce pulses which switch bi-stables 39, 43, the output from the latter being applied to the V input of VK flip-flop 47. The clock signal is applied to the trigger input, resulting in pulses at F which are synchronized with the clock. The clock pulses are also fed to counter 48 and gate 57 to produce an output across weighting resistors 58, 59, 60. When a pulse of the train at F opens gate 57, the amplitude of the resulting signal from resistors 58, 59, 60 is dependent on the timing of the gating pulse, and is integrated by filter 90, 91, 92, 94 to provide a control signal for the oscillator. The time constant of this filter may be varied by FET 89 which switches capacitor 90 in or out of circuit. Frequency control signals may be applied at inputs 99, 100 to set the oscillator frequency.
Patent GB-1147812-A (GB)
Title: Mounted optical component and apparatus for mounting same
IPC: G02B7/02
Filed: 1966-04-06
Abstract: 1,147,812. Apparatus for securing glass parts in a holder. M. C. SCHNEIDER, and H. J. SCHNEIDER, [trading as JOS. SCHNEIDER & CO. OPTISCHE WERKE]. 6 April, 1966 [15 April, 1965], No. 25019/68. Divided out of 1,147,811. Heading C1M. To secure two circular glass components of an optical objective in an annular holder, the components 3, 4 are each held by suction on chucks 5b, 5a with shanks 2b, 2a secured to spindles 11b, 11a each with channels, as 16, connected to vacuum, the annular holder 9 is supported as at 12 between the spindles in coaxial relation therewith, the spindles lla, 11b are rotated about their common axis and the parts pressed towards each other by a spring 14. In Fig. 2, not shown, the support for the holder 9 forms part of one of the chucks. A centring ring 10 is held between the lens components 3, 4 by the holder 9. The method of securing the parts is as disclosed in Specification 1,147,811.
Patent GB-738155-A (GB)
Title: Improvements in integrating units
Inventor: SAUNDERS PETER SIDNEY
IPC: G01F1/38
Filed: 1951-10-26
Abstract: 738,155. Flowmeters. NATIONAL . RESEARCH DEVELOPMENT. CORPORATION. Jan. 6, 1953 [Oct. 26, 1951], No. 25150/51. Class 69 (1). [Also in Group XXXVIII] In an arrangement for measuring the rate of flow or total flow of a fluid in a duct, the two pressures obtained from an orifice, Pitot tube or venturi unit 3 in the duct are applied one on either side of a diaphragm 5, which therefore tends to be displaced by a force proportional to the difference of the two pressures, and the diaphragm is linked at 6 to the contacts 14 of a relay 13 of the vibrating contact type controlling the speed of a motor 12 driving a governor 11, the control element 10 of the governor being connected by a link 8 to the diaphragm so that the centrifugal force of the governor restores the diaphragm to its original position. Thus the rate of fluid flow may be obtained from a tachometer on the motor shaft and the total flow from a revolution counter. The motor drive for the governor may be : (a) a threephase squirrel-cage motor with two phases periodically interrupted by the relay 13 ; (b) a permanent magnet D.C. motor in combination with the relay 13 ; (c) a D.C. shunt motor with the field continuously energized and the armature in series with a resistance, the armature being short-circuited by contacts operated by the relay 13. Alternatively a Ward-Leonard set, the driven motor of which drives a threephase attenuator connected to a squirrel-cage or synchronous motor driving the governor, may be used, in which case the field of the Ward- Leonard generator is varied by the vibrating contact type relay. As a further alternative, a Ward-Leonard set may be used to drive a permanent magnet D.C. motor, the field of the generator being varied as above.
Patent GB-537540-A (GB)
Title: Improved method of preparing cloth for fulling
IPC: D06C17/02
Filed: 1939-09-07
Abstract: 537,540. Degreasing, carbonizing and fulling fabrics. STEVENS & CO., M. T. Sept. 7, 1939, No. 25244. Convention date, March 18. [Class 15 (ii)] [Also in Group III] Cloth containing animal fibre is prepared for fulling by a continuous process in which it is (1) passed through a degreasing solvent, (2) freed from most of the solvent by suction, (3) freed from residual solvent by heating, (4) carbonized and (5) crushed to remove carbonized material. A neutralizing treatment may follow, if the cloth is to be fulled under alkaline conditions. Suitable apparatus for the degreasing treatment comprises a chamber 12, Fig. 1, divided at the bottom to form tanks 13-15 through which the cloth 14 is passed by means of rollers 20, 21. Solvent from a tank 16 is supplied by pipe 17 to tank 15 and overflows successively into tanks 14, 13 being finally discharged at 18 to a recovery apparatus 19. The treated cloth passes over a vacuum extractor 23, whereby most of the solvent is removed, and then through a seal 24 to a chamber 25 in which is it freed from residual solvent by passage over heated drums 26-30. Suitable solvents are carbon tetrachloride or tri- or tetra-chlorethylene or mixtures of these, with or without small proportions of flammable solvents, The degreased cloth then passes to an apparatus (Fig. 2, not shown) in which it is moistened with water and then impregnated with an acid carbonizing liquid, e.g. dilute sulphuric acid or aluminium chloride solution, the apparatus comprising containers for the liquids and rollers for conveying the cloth therethrough, together with intermediate squeezing rollers. The impregnated cloth, then passes to an apparatus in which, as shown in Fig. 3, it is first dried, suitably at 180-200‹F., in a chamber 70 and then baked, suitably at 220-260‹F., in a chamber 82, the cloth being stretched to a pre-determined width on its way to the chamber 70 by an endless-chain tenter 64. The baked cloth from the chamber 82 passes to a crushing apparatus (Fig. 4. not shown) in which carbonized material is removed by passing the cloth between a number of pairs of spring-pressed rollers, which may rotate alternately in opposite directions in such a way that the cloth is conveyed forward for a certain length and then backward for a shorter length. Acid fulling may follow directly, but if fulling is to be effected under alkaline conditions the cloth is first neutralized, e.g. with soda or ammonia, suitable in an apparatus (Fig. 5, not shown) in which the cloth is passed through a number of baths of neutralizing agent, with intermediate squeezing.