baber/WOPTO huggingface dataset:
Patent GB-745964-A (GB)
Title: Improvements in or relating to protective control systems for alternating current generators
IPC: H02H7/06
Filed: 1954-01-05
Abstract: 745,964. Running generators in parallel. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Jan. 5, 1954 [Jan. 9, 1953], No. 253/54. Class 38 (4). Means for detecting over-voltage, or overexcitation, of one generator in a system of alternating current generators 1, 2 operating in parallel, and more particularly means for effecting the tripping of the circuit-breaker 4, or 5, of the over-excited machine, comprises a relay 26 for each machine energized from_a line voltage transformer 29 over a circuit including a resistor 31 across which is developed a voltage proportional to the difference between the load currents of the machines, on account of the connection of this resistor across lines 21, 22 interconnecting current transformers 20 associated with each machine and in which flows a current proportional to the unbalanced wattless load currents. The phase of the voltage across resistor 31 is such as to assist the secondary voltage of transformer 29 in the case of an overexcited machine, whilst in the case of an underexcited machine, the two voltages are in opposition. Hence, excessive excitation of any machine, say due to failure of its automatic voltage control system, causes operation of its associated relay 26 and consequent disconnection of the machine, the relays associated with the machines remaining unoperated. Each machine may have an automatic voltage and load sharing control system comprising a carbon pile regulator 12 for an exciter machine 10, the pile being controlled by a winding 15 energized over rectifier 17 and transformer 18 so as to be responsive to the system voltage, a transformer 23 energized from the lines 21, 22 injecting into the rectifier circuit a voltage component proportional to the degree of load unbalance between the generators. In a modified arrangement, the resistor 31 is replaced by the primary winding of a transformer, the secondary winding of which is connected in one phase of a threephase bridge rectifier energizing the relay 26 and supplied in the same manner as rectifier 17.
Patent GB-999041-A (GB)
Title: Improvements in or relating to a device for assisting in the removal of pneumatic tyres from wheels
Inventor: DAW REGINALD FRANK
IPC: B60C25/04
Filed: 1961-01-04
Abstract: 999,041. Removing tyres from wheel rims. DUNLOP RUBBER CO. Ltd. Dec. 22, 1961 [Jan. 4, 1961], No. 292/61. Heading B7C. A device for moving a tyre bead, or detachable rim flange 21, axially inwardly of a rim base 19 for removal of the locking ring 22, comprises a bar 3 clampable diametrically across the rim so that the flange 9 of a slipper plate 7 slotted on one end of the bar rests on the tyre bead or detachable rim flange, the slipper plate being acted on by a cam disc 2, which is rotatable on the bar, to effect the desired bead breaking on 180 degrees rotation of the cam, by a lever 6 fixed to the cam. As shown, the cam has a flat 5 at its lift peak to latch the cam in its lift position. The bar 3 carries at its other end a slide block 11 having spaced bolts 12 therethrough to bear on the wheel disc, and towards the cam end a clamp bracket 13 is longitudinally and transversely adjustable on the bar so that a hook 15 carried directly on the bracket, Fig. 3, or a hook 25 carried by a chain 24 on the bracket, Fig. 5, can be anchored in an appropriate securing hole of the wheel disc. In alternative constructions, the cam disc 2 may be sandwiched between a pair of slipper plates, and the bar 3 may be mounted for rotation about the wheel axis to facilitate displacement of the cam around the tyre bead or rim flange for successive operations thereon. In a further arrangement, the cam may be a face cam, rotatable about an axis parallel to the wheel axis.
Patent GB-1003608-A (GB)
Title: Improvements in or relating to diaphragms for loudspeakers
IPC: H04R7/04
Filed: 1963-01-02
Abstract: 1,003,608. Diaphragms; reverberation systems. AKUSTISCHE UND KINO-GERATE G.m.b.H. Jan. 2, 1963 [Jan. 15, 1962], No. 300/63. Headings H4J and H4R. A loud-speaker diaphragm comprises a substantially flat plate of foamed material said plate being susceptible to the formation of flexural waves therein, whereby reverberation is added to sound produced by its vibration. The diaphragm 1 (Fig. 1) may be rectangular (50 cm. x 100 cm.) with a rim 2 of smaller thickness than the remainder. The rim 2 is gripped in a frame 4 and damping material 9 of soft felt, wadding or soft rubber reduces the formation of standing waves. The diaphragm 1 is actuated by a dynamic driving system 5 secured to a cross-bar. The voice coil 7 may be centred by the diaphragm itself, or by a single centring ring 10 (Fig. 3) or by two rings 10, 11. The driving system 5a (Fig. 4) may be offset from the centre and the diaphragm may be mounted at its rim in damping material and backed by damping means 14, 15. One or both sides of the diaphragm 1 (Fig. 4b) may be covered with aluminium foil or plastics sheet which acts as a mounting. The diaphragm may be covered with damping material on one or both sides. The rear face of the diaphragm may be conical (Fig. 5, not shown). Ribs may be formed on the diaphragm surface. A plurality of driving systems may act on a single diaphragm (Figs. 6, 8, not shown). The diaphragm 26 (Fig. 7) may be fitted in a cabinet and cater for middle and upper frequencies while bass frequencies are radiated by bass loud-speakers 27, 28. The diaphragm 33 (Fig. 9a) may take up the entire front face area of a transistor radio, the driving system 32 being secured to a cross-bar 35 or to a triangular board (Fig. 10, not shown). The diaphragm may have a conical extension 39 (Fig. 11) to which the voice coil is secured. A conical diaphragm of " Duralumin " or " Pertinax " (Registered Trade Marks) may have an outer foamed diaphragm 41 (Fig. 12) and a foamed plug 42. Specification 827,302 is referred to.
Patent GB-726203-A (GB)
Title: Improvements in or relating to titanium alloys
Inventor: JESSUP ALFRED CLAUDE
IPC: C22C14/00
Filed: 1953-01-06
Abstract: A Ti-base alloy consists of at least 80 per cent Ti and 0.5-15 (preferably 2-8) per cent in total of one or more lanthanides or U or Th.  The alloy may also contain Be, V, Cr, Ni, Co, Cb, Ta, Mo, W and Rh, the proportions of these elements being less than 5 per cent individually and less than 12 per cent in total.  The lanthanide is preferably other than La.
Patent GB-244281-A (GB)
Title: Improvements in selecting switches for use in telephone systems
IPC: H01H67/16
Filed: 1925-01-06
Abstract: 244,281. Siemens & Halske Akt.-Ges., and Giese, K.. Jan. 6, 1925. Selectors of the Strowger type are so arranged that the lifting ratchet f is momentarily locked at the end of its return movement to prevent possible operation of the off-normal contacts by rebound by means of a hook p, which slides over and then passes under a spring w, which may be one of the contact springs. The off-normal contacts are controlled by a bent member r mounted on the wiper carriage k. In the last rotary position to which the switch is driven upon release, a stop m on the switch shaft strikes the blocking pawl n and releases the lifting ratchet f so that the wiper carriage k drops to its lowest position. The hook p locks the ratchet f, and the contact o in the rotary magnet circuit is opened either by the hook p or by the bent member r. The switch is rotated to normal by a spring e, and the hook p is released by the member r.
Patent GB-899567-A (GB)
Title: Graft copolymers from olefinically unsaturated monomers and polycondensates and a process for their production
Inventor: CRAUBNER HANS
IPC: C08F283/04
Filed: 1961-01-05
Abstract: Graft polymers are formed by a process in which a polycondensate containing -CONHgroups is nitrosated at some or all of the amide nitrogen atoms and the resulting N-nitrosopolycondensate is copolymerized with one or more olefinically unsaturated monomers, e.g. acrylic and methacrylic acids and their C1-C12 esters, nitriles and amides, styrene, methylstyrenes, divinylbenzene, isobutylene, vinyl esters with C2-C18 acids, vinyl and vinylidene chlorides, butadiene, chloroprene, isoprene, dimethylbutadiene, vinyl ethers of C1-C12 alcohols, vinyl sulphonic acids, and vinyl pyridine, imidazole, pyrrolidone and carbazole. Polycondensates speeified are polycaprolactam, condensates of hexamethylene diamine with adipic or sebacic acid, a condensate of sebacic acid with p,p1diamino-diphenylmethane, a polyurethane prepared from a mixture of hexamethylene diamine and 1,4-butanediol dichlorocarbonate, and also polyesteramides, polyureas and polythioureas.  The polycondensates are nitrosated by treatment with nitrosating agents such as dinitrogen trioxide, nitrosyl chloride, nitrous acid or alkyl nitrites, the reaction being carried out with the polycondensate in powder form or in solution, dispersion or in swollen form.  In one mode of operation the polycondensate is nitrosated whilst dissolved, swollen or dispersed in the olefincally unsaturated monomer, in which case graft polymerization occurs simultaneously if the temperature of the reaction is in excess of room temperature.  The graft polymerization of the unsaturated monomer may be accelerated by means of catalysts such as alkali and alkaline earth hydroxides, alkali carbonates, amines, heavy metal salts, benzoyl peroxide and, when employing photochemical excitation of the reaction, azobisisobutyronitrile, anthracene or perchloromethyl mercaptan. The polymerization may be carried out in bulk, solution or dispersion. The examples describe the production of graft polymers from nitrosated polycondensates with: (1) and (2) vinyl acetate+ acrylic acid, (3) acrylonitrile, (4) acrylonitrile+ styrene, (5) acrylonitrile, (6) and (7) methyl methacrylate, (8) methyl methacrylate+vinyl acetate, (9) butyl acrylate+vinyl pyrrolidone, (10) styrene, (11) styrene+isoprene or isobutylene, (12) vinyl chloride+vinyl carbazole, (13) vinyl propionate+vinyl isobutyl ether and (15) styrene.
Patent GB-425357-A (GB)
Title: Manufacture of azo-dyestuffs
IPC: C09B43/40
Filed: 1933-07-08
Abstract: Azo dyes are made by treating an azo dye containing an o -halogenalkylamino group with an alcoholate or with a salt of an organic acid.  They yield fast shades on acetate artificial silk. In examples, the dyestuff p-nitraniline --> o -bromethyl-ethylaniline is refluxed (1) with sodium methylate and methyl alcohol (scarlet red); (2) sodium acetate and alcohol (scarlet).
Patent GB-579187-A (GB)
Title: A new or improved method of, and apparatus for, preventing outward heat flow through an opening of a doorless oven
IPC: C23D9/00
Filed: 1945-01-06
Abstract: 579,187. Tunnel ovens. TONGE, H. VJan. 6, 1945, No. 586. [Class 51 (ii)] A method of preventing heat flow through the open ends of a tunnel oven comprises the continuous formation of an air curtain orblanket in or adjacent to the plane of the opening by directing convergent streams from slots in the periphery towards the centre. As shown, the end of the tunnel oven 6 is provided with a silhouette plate 7 on the outside of which a slotted air duct 11 is arranged to emit sheets of air perpendicular to the length of the oven. The discharge of the air may be regulated by means of an adjustable plate 15 with inclined edges 16 which overlap the orifices. The oven may also have means for withdrawing hot airfrom the top of the tunnel and returning it to its lower part. Specification 565,104 is referred to.
Patent GB-217859-A (GB)
Title: Improvements in and relating to fixing and tightening tubes in boiler-plates, flanges and the like by means of wire-rings
IPC: F16L41/00
Filed: 1924-01-09
Abstract: 217,859. Brewer, G., (Lang, J.). Jan. 9, 1924. Plates, walls, and the like, securing pipes and tubes to.-Tubes are fastened in boiler plates, flanges &c. by means of a wire ring C consisting of harder material than that of the tube B or the plate A, the ring being pressed without deformation into one or both of the two parts to be connected by expanding the tube end. In Fig. 1 a ring-receiving groove is shown provided in the plate, and in Fig. 3 in the tube, the collar b<3> formed during rolling of the groove in the latter case being pressed back during expansion of the tube end. In both cases the wire ring projects beyond the groove. Fig. 5 shows a connection in which no grooves are provided, the ring being of square or rhomboid cross-section and expanded into the tube and plate. The wire ring may extend over the circumferential surface of the tube end along a screw-like or undulated curve. If desired, more than one wire-ring may be employed. The tube-breast b<2> is adapted to abut against the boiler-plate A, and the projecting tubeend may be flanged over the plate.
Patent GB-710494-A (GB)
Title: Improvements in and relating to lining tunnels or bores with concrete
IPC: E21D9/06
Filed: 1951-01-10
Abstract: 710,494. Casting concrete tunnels. NUTTALL, SONS & CO. (LONDON), Ltd., E., and MERIVALE, H. W. Feb. 21, 1952 [Jan. 10, 1951], No. 697/51. Class 20 (2). [Also in Group XXI] To cast a lining in situ in a tunnel or bore by a tunnelling shield a that is advanced by jacks b, there is located behind said shield and progressively advanced therewith a shuttering unit 1 spaced from the bore excavated by the shield and the shuttered space to the rear of the feet of the jacks when retracted is filled with aggregate which forms an abutment for the jacks on further advancement of the shield during which stage the grout is fed into the compressed aggregate. The cycle is repeated. Each charge of aggregate may be fed with grout on each advance of the shield, or a series of charges may be fed with grout simultaneously. The grout is fed through the walls of the shuttering unit through means separate from that by which the aggregate is placed behind said shuttering.
Patent GB-123357-A (GB)
Title: Improved Change-speed Gearing.
Inventor: ALLISON CHARLES ARTHUR
IPC: B62M25/00
Filed: 1918-01-11
Abstract: 123,357. Allison, C. A., (Soc. Anon. H. et A. Dufaux et Cic). Jan. 11. 1918. Variable-speed touthed or chain gearing; clutches, friction.-In variable-speed gearing having two or more toothed or chain wheels fitted with expanding-ring friction-clutches operated by radially-moving wedges 15 actuated by cam surfaces on a shaft 13, the wedges 15 are tapered axially as well as radially and are separately adjusted to take up play by axial bolts and nuts 21, 24. Shoes 16 are placed between the wedges and the ends of the clutch rings 11.
Patent GB-631393-A (GB)
Title: Improvements in and relating to thermionic valve oscillators
IPC: H03B5/10
Filed: 1947-01-09
Abstract: 631,393. Valve generating circuits. CLIFFORD, F. G. Jan. 9, 1947, No. 722. [Class 40 (vi)] A wide range oscillator with low harmonic content has a combined feedback and output transformer which comprises two coupled inductors L<1>, L<2>, one tuned by a parallel capacitor C<1> and the other by a series capacitor C<2> in accordance with the equations where k is the coefficient of coupling between L<1> and L<2> and Wo is the oscillatory frequency, the resistive load into which the oscillator works being placed in series with the series-tuned circuit. The Figure shows an oscillator in which the primary of the output transformer is tuned by capacitor C<1> and the secondary by capacitor C<2>, the oscillator working into the resistive load R<2>. The frequency of oscillation may be adjusted by ganging the tuning capacitors C', C<2>. The tuned transformer operates as a frequency-selective device and discriminates against harmonics of the fundamental oscillatory frequency, thus lessening the harmonic content of the output waveform. The output impedance and voltage level may be made more constant over a wide frequency range by shunting the inductor L<1> by a resistor R<1> as shown in the Figure. In a modification, Fig. 2 (not shown) the voltage across the resistive load is fed back into the cathode circuit of the valve the connections to one of the inductors being reversed so that the conditions for oscillation are still maintained.
Patent GB-286585-A (GB)
Title: Improvements relating to weighing scales
IPC: G01G1/16
Filed: 1927-07-28
Abstract: 286,585. Maatschappij tot Vervaardiging van Snijmachines Volgens van Berkel's Patent en van Andere Werktuigen, and Duyn, A. van. July 28, 1927. Pendulum-weight apparatus.-In a pendulumweight scale of the kind having a check arm or arms extending into an upstanding indicator housing, the check arm or one of the check arms is provided with a stop that, when the machine is out of level, is engaged by a stop on a pendulous member to prevent the weighing- mechanism from functioning. As shown, one check arm E of a semi-automatic weighing-scale, having a pendulum H and pointer J, is provided with a stop c through an aperture c' in which the free end of a weighed pendulous member g passes. The stop c passes freely over a stop d on the pendulous member unless the machine is out of level when the stops engase and the check arm is prevented from moving. Specification 267,035 is referred to.
Patent GB-100415-A (GB)
Title: Improvements relating to Brackets.
Inventor: TUCKER GEORGE EDWARD
IPC: A47B47/02
Filed: 1916-01-21
Abstract: 100,415. Tucker, G. E. Jan. 21, 1916. Brackets, adjusting and securing.-Angle-iron brackets adapted to form slides or supports for drawers, boxes, shelves, &c., and collars beneath them, are secured to uprights or columns. The securing- means comprise screws C, G and internally screwed sleeves D, H passing through the upright B. The collar F may extend between the brackets and the uprights to enable a single securing-device to be used. The collars may be supported or spaced by tubes surrounding the upright B.
Patent HK-96895-A (HK)
Title: Communication network
Inventor: GORDON ALASTAIR TAYLOR
IPC: H04H60/31
Filed: 1995-06-15
Abstract: A communication network advantageously uses existing broadcast channels to instruct remote receivers and eventually use automatic dial-up capability for forming a telephone communication link with a central processing facility. The network is capable of providing many services from remote reading of meters to electronic mail and electronic billing. The network is preferably shared by a number of large users communicating with a host of subscribers.
Patent HU-T63227-A (HU)
Title: Metal profile of octagon cross section for the frame of opening and closing devices first for doors, windows
Inventor: ZANONI EDOARDO
IPC: E06B3/12
Filed: 1991-07-20
Abstract: PCT No. PCT/EP91/01375 Sec. 371 Date Mar. 31, 1993 Sec. 102(e) Date Mar. 31, 1993 PCT Filed Jul. 20, 1991 PCT Pub. No. WO92/02706 PCT Pub. Date Feb. 20, 1992.The section has a tubular shape with a substantially polygonal cross-section, provided with two larger faces (1, 2) opposite to one another and two smaller faces (3, 4) forming a connection with said larger faces, which extend in abutment elements (5, 6) suitable for defining with said larger faces the inner front and the outer front, respectively, of the window or door frame. The two larger faces (1, 2) comprise respective central portions (11, 12) parallel to one another provided with flaps (13, 14) defining C-shaped cavities (15, 16) for housing and connecting various members of the window or door frame. Each larger face also comprise lateral portions (17, 19; 18, 20) converging towards the corresponding lateral portions of the other larger face until they connect with the smaller faces. The section includes a hole (21) for drainage purposes.
Patent JP-S60186458-A (JP)
Inventor: KURASHINA FUMIAKI
IPC: C04B35/04
Filed: 1985-01-07
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H01176011-A (JP)
Title: Apparatus for applying coating to cylindrical body to be processed
Inventor: REONIDO PABUROUITSUCHI KASHITS
IPC: C23C24/10
Filed: 1988-01-04
Abstract: PURPOSE: To provide the device constituted so as to move a reciprocating table and a bed properly and capable of uniformly heating a cylindrical work and conducting good quality coating in a wide sliding range. CONSTITUTION: A work 12 is placed at a preheating zone arranged at the position corresponding to an induction heating device 22, a powder or solid coating material is filled in a hollow work 12. By actuating a drive device 37 to move a reciprocating table, e.g. a transfer device, a stock tail table 10 is moved to the left side shown in Figure, by aligning sensors 18, 19 to an end face of the work 12, the work 12 is fixed. Successively, the work 12 is preheated with using the device 22, a motor 23 is energized to transmit its rotation to a crown gear 28, the work 12 is positioned to the device 22. When a heating shortage part is caused at a surface of the work 12 to be metal coated, a pilot meter to move the part in the axial direction detects it, by actuating a drive device of a bed 1, the bed 1 is moved in the direction orthogonal to an axial line of the work 12.
Patent JP-H02182910-A (JP)
Title: Latent bulky multifilament yarn
Inventor: TAJIRI KOJI
IPC: D01F6/60
Filed: 1989-01-06
Abstract: PURPOSE:To obtain latent bulky multifilament having liveliness and a little reduction in bulkiness, comprising filament having sectional shape wherein three flat units of specific shape are radiately bonded at one point. CONSTITUTION:A nozzle of spinneret for forming this filament has a shape wherein slits 2 extending three directions from a central hole 1 are connected to flat units. Each flat unit has a shape wherein a pair of slit-shaped extrusion holes 3 and 4 are bonded at a connecting part 5 and an extrusion hole 6 of connecting part is set at approximately the center of the connecting part 5. In the shape, diameter of lB of an inscribed circle of the extrusion hole 6 of the connecting part is larger than maximum width lC of slit-shaped extrusion holes 3 and 4.
Patent JP-H01176548-A (JP)
Title: Method for molding honeycomb core composite material
Inventor: TSUCHIYA KIYOSHI
IPC: B32B3/12
Filed: 1988-01-05
Abstract: PURPOSE:To prevent the sliding and deformation of a honeycomb core generated when the vacuum of a vacuum bag is released, by fixing the resin allowed to fill the outer peripheral part of the honeycomb core to be cured to a fixing jig by a mechanical fixing device before performing the curing of a honeycomb sandwich structure under heating and pressure. CONSTITUTION:In a molding method wherein a honeycomb sandwich structure 2 consisting of a honeycomb core 3 and the fiber reinforced plastic laminate materials 14 covering at least the upper and lower surfaces of said honeycomb core is covered with a vacuum bag 9 and the bag is evacuated to cure and mold the above mentioned laminate materials 4 under pressure and heating to prepare a honeycomb core composite material, a resin 5 is allowed to fill the outer peripheral part of the honeycomb core and cured to be fixed thereto and this resin is fixed to a jig 1 by a mechanical fixing device 7 to be heated under pressure. Whereupon, even when pressure difference is generated between the vacuum bag and the cells of the honeycomb core when the vacuum of the vacuum bag is released and external force acts on the honeycomb core in a lateral direction, the sliding and deformation of the honeycomb core can be prevented.