baber/WOPTO huggingface dataset:
Patent GB-1439275-A (GB)
Title: Overload protecttion devices for hoists
IPC: B66B5/14
Filed: 1973-06-06
Abstract: 1439275 Elevation overload safety device LINDEN ALIMAK AB 6 June 1973 [6 June 1972] 26913/73 Heading B8L An overload protection device for a hoist in which the hoist driving unit mounted on plate 11  is coupled directly to the hoist cage 6 through a load transmitter unit 16, which is flexible, permitting relative movement between the cage 6 and driving unit corresponding to the cage load, to produce a signal preventing starting of the hoist drive if a maximum permissible load on the cage has been exceeded. The driving unit includes driving pinions 12 engaging a rack 13 secured to a pylon 1, up and down which the cage moves. The driving unit plate 11 is guided by rack back engaging rollers 14 and spherical sliding bearings 15 between the plate 11 and vertical beams 8 of the cage 6, and the only force transmitted between the cage 6 and plate 11 is through the unit 16. The latter may be positioned relative to the cage to transmit either pressure or traction forces. The load transmitter unit 16 comprises a damper secured to the plate 11 and a yoke secured to the cage 6, the yoke including microswitches actuated by the damper upon relative movement of cage 6 and plate 11, beyond a preset limit representing a preset load. The hoist driving unit and load transmitter may be positioned above, below or within the cage 6.
Patent GB-1074474-A (GB)
Title: Radio transmitter
Inventor: ALDER MAURICE HERBERT
IPC: G01S13/76
Filed: 1964-06-30
Abstract: 1,074,474. Aerials; pulse radar. STANDARD TELEPHONES & CABLES Ltd. June 30, 1964, No. 26962/64. Headings H4A and H4D. A radio transmitter output is coupled to a directional aerial and to a less directional aerial by two change-over switches the fixed contacts of one switch being coupled to the corresponding fixed contacts of the other switch, the feed contact of the first switch is coupled to the transmitter output, one fixed contact of the first switch is coupled to the directional aerial, the less. directional aerial is connected to the feed contact of the second switch, a gating pulse changes over the switches, the radio transmitter is modulated by at least two pulses; and the gating pulse ensures that at least one of the transmitter, pulses is fed to the directional aerial and at least one other pulse is fed to the less directional aerial. The invention is applied to asecondary surveillance radar transmitter; the aerials have as elements a slotted cylindrical cavity short-circuited at one end and fed by a coaxial cable at the other end. The rotating " interrogation " directional array is linear and is fed with a Gaussian power distribution; the centre elements of this array are shared with the "control " array which has additional, backward-facing, elements to give an over-all substantially omnidirectional radiation pattern in. the horizontal plane. All aerial elements are provided with flare plates to restrict radiation in the vertical plane. In the case of a twopulse system the first pulse is fed to the " control " array and the second pulse to the " interrogation " array, the gating pulse for the change-over switches being arranged to embrace the first pulse; in the case of a threepulse system the first and third pulses are fed to the " interrogation " array and the second pulse to the " control array, the gating pulse embracing the second pulse. A testing device raises an alarm when the standing-wave ratio at the input to the first change-over switch exceeds a given value. Adjustable attenuators are provided in the array feed lines. The change-over switches preferably comprise semiconductor diodes.
Patent GB-630608-A (GB)
Title: An improved liquid-pressure engine
IPC: F01L25/06
Filed: 1945-10-16
Abstract: 630,608. Liquid-pressure engines. BROWN TRACTORS, Ltd., D., and HULL, C. H. Oct. 16, 1945, No. 27017. [Class 69 (ii)] In a liquid-pressure engine having two openended cylinders a, b, arranged with their axes parallel and having connection at their closed ends through ihlet ports a<SP>3</SP>, b<SP>3</SP>, and outlet ports a<SP>4</SP>, b<SP>4</SP>, with a control cylinder e having a central connection e<SP>1</SP> to a pressure-liquid supply and connections e<SP>2</SP>, e<SP>3</SP> to exhaust, a valve member having pistons f<SP>1</SP>, f<SP>2</SP> controls communication between the two working cylinders and the pressure supply and exhaust. Additional ports g, h, communicate with the adjacent working cylinder at an appropriate point in its length, and pistons #<SP>3</SP>, #<SP>4</SP> on the valve member control communication between these ports and passages j<SP>1</SP>, k<SP>1</SP> leading to the pressure supply. In the position of the ports shown in Fig. 1, the cylinder a is open to exhaust, pressure-liquid being admitted to cylinder b. The piston b<SP>1</SP> has uncovered port h, thus permitting pressureliquid to flow behind left-hand end of the control valve member. The port g is open to exhaust via connection i<SP>1</SP> so that the pressure on the left-hand end of the valve moves it to the right, the liquid pressure entering through k<SP>1</SP> serving to hold the valve member in this position. Specification 539,866 is referred to.
Patent GB-1482218-A (GB)
Title: Process for the preparation of pigmentary compositions and compositions resulting therefrom
IPC: C09D7/80
Filed: 1974-06-20
Abstract: 1482218 Production of coated pigment particles PRODUITS CHIMIQUES UGINE KUHLMANN 20 June 1974 [20 June 1973] 27312/74 Heading C3P The coating of pigmentary particles by the "in situ" polymerization or copolymerization of at least one ethylenically unsaturated monomer having at least one polymerizable double bond and containing at least three carbon atoms, or at least two carbon atoms and a heteroatom and/or a halogen atom attached to one of the carbon atoms, is effected in an organic solvent in which the monomer, catalyst and activator are soluble, but in which the polymer or copolymer formed is insoluble, and the ratio by weight of pigment to polymer or copolymer formed ranges from 10/90 to 95/5, the amount of catalyst being 0À1-10% with respect to the weight of the monomer to be polymerized. Lists of monomers, solvents and catalysts are given. According to Example 1, 278 parts of a #- copper phthalocyanine pressed paste containing 64% of water and 350 parts of heptane are charged into a reactor provided with a condenser and an agitation system. After kneading for several hours, a mixture consisting of 80 parts acrylonitrile, 20 parts methyl methacrylate, 1 part tert.-butyl perpivalate and 1 part tert.- butyl peroctoate is added. The "in situ" copolymerization of the pigment particles is effected by raising the temperature of the polymerizable mixture to 90 C. The resulting composition, after removal of the heptane by distillation and drying, consists of 95 parts each of pigment and acrylonitrile-methyl methacrylate copolymer (80-20). The composition is very friable and can be easily converted into a powder. In certain other examples the pigmentary material is a dispersion of powdered #-copper phthalocyanine in methanol, pressed paste of indanthrone, titanium dioxide, specified yellow or green pigments, or yellow iron oxide. The solvent is methanol, heptane or cyclohexane, and the monomer mixtures are: methyl, heptyl, lauryl or stearyl methacrylate with acrylonitrile; methyl methacrylate and acrylic acid; and stearyl and methyl methacrylates with acrylonitrile. Peroxide catalysts and activators are also given. The colouristic development of the pigment compositions produced according to the examples is demonstrated spectrophotometrically by suspending the compositions in specified inks or a dilute solution of acrylonitrilemethyl methacrylate copolymer in dimethyl formamide, and preparing test films of 0À1 mm. thickness from each sample.
Patent GB-519778-A (GB)
Title: Improvements in or relating to pressure fluid operated controlling devices
IPC: F15B9/16
Filed: 1938-09-19
Abstract: 519,778. Fluid-pressure servomotor-control systems, ASKANIA - WERKE AKT. - GES., (formerly ASKANIA-WERKE AKT-GES. VORM. CENTRALWERKSTATT DESSAU UND C. BAMBERG-FRIEDENAU). Sept. 19, 1938, No. 27323. Convention date, Sept. 30, 1937. [Class 135] A fluid-pressure servomotor-control system, more particularly for water level regulation, comprises a main servomotor 17 which is provided with a relay, e.g., a piston valve 16, controlled by an auxiliary servomotor 2 having a small pressure-fluid volume relatively to that of the main servomotor. The auxiliary servomotor 2 is itself controlled by a relay 12 and the pressure fluid circuit 1, 1 thereof is provided with a known,isodromic restoring device 4. A rigid restoring device is interposed between the main servomotor 17 and its relay 16, said device consisting of a cam 22 which is oscillated by movement of the piston 21 of the servomotor and is in engagement with the spring-pressed end 23 of a lever 19 jointed respectively to the said relay and to the rod of the piston 3 of the auxiliary servomotor 2. A modified connection between the piston 21 and cam 22, for use with a vertical servomotor cylinder 17, is also described.
Patent GB-826983-A (GB)
Title: Improvements in ferro-titanium and the manufacture thereof
Inventor: RHODES THOMAS WILLIAM
IPC: C21C7/00
Filed: 1958-08-26
Abstract: Ferro-titanium is produced by introducing into a bath of molten iron e.g. in an induction furnace, maintained at a temperature substantially above its melting point, solid pieces of titanium at as high a rate as is compatible with maintaining the bath in a molten condition until the bath contains at least 40% of titanium, and then solidifying the molten bath e.g. by pouring into water or by casting into rods or slabs which may be broken up in a jaw crusher and then further reduced in size between hardened steel rolls.  The rods or slabs may be formed in subdivided moulds to facilitate breaking into pieces and then quenched in water from a temperature of about 900 DEG C.  The titanium, which may be added in amount to form at least 60% by weight of the melt, may be added in part in the form of titanium swarf, preferably in compacted form.  The resulting ferro-titanium may be used in the production of alloy steels and the titanium used should therefore be as free as possible from elements, such as aluminium, not desired in the production of alloy steel. Reference is made to the addition of titanium in the form of an alloy of 96% titanium, 2% aluminium and the balance mainly manganese.
Patent GB-745011-A (GB)
Title: Improvements in or relating to cycle and like steering-gear
IPC: B62K21/04
Filed: 1953-10-06
Abstract: 745,011. Cycle steering heads. WADE, B. S. Oct. 6, 1954 [Oct. 6, 1953], No. 27351/53. Class 136 (3). In a cycle steering gear having the fork legs 15 fixedly connected by upper and lower transverse members 16, 17 which are swivellably mounted upon the steering head 11 by coaxial antifrictional bearings 13<SP>1</SP>, 132, the crossmembers 16, 17 are permanently and rigidly united to the fork legs 15 at a sufficient distance apart to permit introduction of the steering head between them, one of the crossmembers having mounted therein an adjustable bearing seat 29, Fig. 2, whose distance from the corresponding portion of the other crossmember is positively controlled by a tie-bolt 36 coaxial with the bearings. The adjustable bearing seat 29 has a hollow stem 30 which is in screw-threaded engagement with a tapped hole 31 in the fork crown 16. The stem 30 carries a lock-nut 32 engaging the crown 16. The stem 30 has a semi-closed top end in which is a non-circular hole for engagement by a key during the locking operation. The head 35 of the bolt 36 rests on the seat 29 with the interposition of a washer 34. The shank of the bolt extends through the adjustable seat 29 and steering head 11 to engage a tapped hole 37 in a seat member 25 fixed to the bridge 17. A nut 38 locks the tie-bolt in position. In a modification (not shown), the lock-nut 32 may be arranged at the underside of the fork crown 16. The bearing seat 25 may be adjustable instead of the seat 29. Preferably the thread of the tie-bolt is different in pitch from the thread of the bearing seat. The tie-bolt may be tubular instead of solid. In a further modification shown in Fig. 6, an upper seat 39 is arranged to slide in a plain hole 40 in the crown 16 and is tapped out at 41 so as to be engageable with the inverted tie-bolt 36 in the manner of a nut. Adjustment of the seat 39 may be effected by means of a key engageable with peg holes 42 and is retained by means of a lock-nut 43. The lower end of the bolt 36 may have a plain head 35 or it may be screwed into the lower seat 25 and retained by a nut.
Patent GB-379123-A (GB)
Title: Improvements in metal seals
IPC: G09F3/03
Filed: 1931-10-02
Abstract: 379,123. Seals. BREITENWEIMER, F., 20, Rafaelgasse, Vienna. Oct. 2, 1931, No. 27423. Convention date, Feb. 5. [Class 146 (ii).] A metal seal of the type comprising two members adapted to be interlocked together by hand pressure and to embrace or enclose a piece of string, wire, &c., or knots thereon, consists of an outer hollow box-like member e, Fig. 3, having one or a pair of inwardly-bent springy tongues c made in one piece as a continuation of one or two sides, and an inner hollow member f, Fig. 2, having corresponding slots a or springy tongues to interlock with the tongues c. The member f is formed with gaps b and the member e with notches d to accommodate the string &c.
Patent GB-463697-A (GB)
Title: Improvements in and relating to moulds or dies for moulding or embossing biscuit dough and the like
IPC: A21C11/04
Filed: 1935-10-04
Abstract: 463,697. Moulding - rollers for dough &c. KREMMLING, O. Oct. 4, 1935, No. 27424. [Class 87 (ii)] A moulding or cutting roller for forming biscuits &c. comprises a tube having mould or die apertures, a core member spaced therefrom, and sulphur or other moulding composition cast between the tube and core to form moulding surfaces in the apertures by the aid of pattern caps temporarily closing the said apertures. The roller may comprise a cast iron cylindrical core 1 bolted to end plates 3 mounted on an axle 5. An outer apertured tube 7 is received on a shoulder 6 of the end plates, one of which has a series of apertures through which molten sulphur &c. may be poured. The inner edges of the mould apertures preferably have undercut bevels 8a. Pattern caps 9 are held in position over the mould apertures by clips or rubber bands and the molten composition is poured in between the tube 7 and core 1. Preferably, one ring of apertures is cast at a time, the pattern caps being then moved up to the next ring. In a modification, Fig. 3, the core 1 is dispensed with and the end plates 13 are held together by bolts 14. The roller is spun on a lathe and the molten composition is cast centrifugally therein until the bolts 14 are partially or wholly covered. For producing a cutting roller fins 7a, Fig. 6, are provided round the mould apertures which serve as cutting edges or the edges may be formed by the cast composition itself.
Patent GB-1278788-A (GB)
Title: Lower alkyl indole-2-carboxylate derivatives
IPC: C07D487/04
Filed: 1969-06-05
Abstract: 1278788 Indoles McNEIL LABORA. TORIES Inc 5 June 1969 [5 June 1968 28 May 1969] 27573/71 Divided out of 1278787 Heading C2C Indole derivatives are prepared by the following route: (R=H, C 1-6  alkoxy, Cl, F; R<SP>1</SP>=H, C 1-6  alkyl, Ph.)
Patent GB-464030-A (GB)
Title: Improvements in magnesium alloys
IPC: C22C23/02
Filed: 1935-10-07
Abstract: Magnesium alloys contain aluminium and silver, with or without one or more of the metals manganese, zinc, and calcium.  They may contain up to 11 per cent of aluminium and silver together, 6-8 per cent of aluminium, and 1,5-3 per cent of silver, with or without up to 4 per cent of manganese, and up to 6 per cent of zinc or calcium.  The alloys may be heated to about 400 DEG  C. for 15 minutes or more, and then hardened by heating to 130-220 DEG  C. for one or more days. The Provisional Specifications refer also to magnesium alloys containing calcium and cerium.
Patent GB-1302478-A (GB)
IPC: G01C17/30
Filed: 1971-06-14
Abstract: 1302478 Flux-valve compasses SPERRY RAND CORP 14 June 1971 [29 June 1970] 27716/71 Heading G1N In a flux-valve compass, angular movement of a pendulously mounted flux-valve assembly 3 is limited by engagement of a rigid bumper ring 7 with a striker plate 5, the arrangement being such that the ring contacts the plate at a centre of percussion of the pendulous flux-valve assembly, whereby no forces are imposed thereby on the universal mounting 4. Thus smaller pivots may be used, reducing friction. The casing contains a viscous dielectric damping fluid. As shown, a resilient bumper 6 engages the pendulous assembly when it is displaced 30 degrees from its central position and the ring 7 engages plate 5 at 32 degrees. The edge of plate 5 may be tapered to improve wiping contact with the ring 7, and the plate 5 may deflect in the space below it above a brass weight 9. Alternatively, the resilient bumper may be incorporated with the ring 7, by placing a soft stop in front of the ring or by bifurcating the ring.
Patent GB-277253-A (GB)
IPC: D01H5/48
Abstract: 277,253. Deutsch, A. Oct. 13, 1926, [Convention date]. Rollers and roller heads. -In roller heads for ring spinning-machines back pressure rollers 4 are carried by lever mechantsm 5 centred on pressure rollers 6 on the middle bottom roller, so that the rollers 4 serve also to impart the necessary pressure to the rollers 6. A light roller 9 is mounted on the roller 2, a preliminary draft, say from one to three, being effected between the nips A, C, and a final draft, say fifteen, between the nips C, B. The mechanism 5 is turned about the axes of the rollers 6 to the position shown in dotted lines for the insertion of a new roving, the nip C for adjacent fibres being not affected thereby.
Patent GB-849252-A (GB)
Title: Improvements in thermostatically operated valve
Inventor: PUSTER LOUIS MEDART
IPC: F16K31/68
Filed: 1957-09-03
Abstract: 849,252. Valves. ROBERTSHAW-FULTON CONTROLS CO. Sept. 3, 1957 [Jan. 7, 1957], No. 27810/57. Class 135. A thermostatic valve comprises an apertured support member 14, 22, with a valve seat 20 and a housing 30 having a circular valve guide 34, a sleeve valve 52 slidable over the guide and carried by one end of a thermostat 68 having its other end 70 held against an inner wall of the housing by resilient means 76 carried by a part 42 of the housing. The thermostat is of the wax-fusion type.
Patent GB-700047-A (GB)
Title: A process for treating wood
IPC: F26B5/00
Filed: 1951-11-28
Abstract: 700,047. Treating wood. SUGA, K. Nov. 28, 1951, No. 27879/51. Class 140 In drying wood by the application of heat from without, e.g. by steam, smoke, or hot air, the process is interrupted for a time during which a heated aqueous solution of a chemical salt or of urea is sprayed on to the wood, the drying and spraying treatments being alternately repeated until the desired moisture content is attained. The salt may be sodium chloride, carbonate, or borate, potassium chloride, ammonium chloride, phosphate, or sulphate. The sprayed salt solution may be recovered and used again.
Patent GB-1187968-A (GB)
Title: Apparatus for Moulding Gramophone Records.
Inventor: RAND WALTER LESLIE
IPC: B29D17/00
Filed: 1966-06-24
Abstract: 1,187,968. Moulding gramophone records. ELECTRIC & MUSICAL INDUSTRIES Ltd. 5 June, 1967 [24 June, 1966], No. 28258/66. Heading B5A. A gramophone record moulding press with opposed moulding platens, includes centrally located pin and anvil means for forming the central hole in the record during the moulding process, the pin having a circumferential cutting edge and providing, in association with the anvil means, a keyed cavity to receive and retain the moulding material removed from the record centre. A gramophone record press includes mould assemblies 6, 7, with heating and cooling channels and matrices 26, 27, carried by opposed members 10, 13 of the press. The assemblies have central matrix supporting members 41 and 52, the former threaded to a sleeve 61 and the latter to a clamp 76 attached to a rod 80 connected to a collar 79 surrounding an eccentric bearing 78 on a shaft 77. Rotation of the shaft effects a raising or lowering of the member 52. The latter has a keyed recess 100 to receive a slug of mould material cut from the record centre by a pin 28 when the mould assemblies are forced together and the pin urged downwardly by a pneumatic device acting on a rod 71. The slug is retained in the recess when the cooled record is removed from the press. The keyed recess may be provided in the cutting end of the pin, and the upper surface of the co-operating member may be plane. Alternatively the lower member (52) may have a central upstanding pin with a cutting edge to engage a central pin depending from the upper member (41) keyed to receive the slug; the keyed part may be in the lower pin and the cutting edge on the upper one. Keyed recesses of various types are described. The press may form part of an automatic apparatus in which a charge of moulding material is fed to the press and the moulded record is transferred to a flash remover and then to a record sleeve applying machine.
Patent GB-721651-A (GB)
Title: Improvements relating to spectacle frames
Inventor: ALEXANDER GEORGE DONALD
IPC: G02C5/22
Filed: 1952-11-10
Abstract: 721,651. Spectacle frames. HADLEY CO., Ltd. Nov. 10, 1953 [Nov. 10, 1952], No. 28296/52. Class 97 (1). In a spectacle frame having side pieces hinged either to a brow bar extending across the top of the frame or to bars which extend only partially across the top, the side pieces 4, and the bar or bars 3 are of metal wire, the ends 5, 7 of the two wires are flattened to form on each a flat projecting from a shoulder, and are joined by a pivot pin 9, the end of each flat being shaped to abut against the end of the opposite shoulder in the open position to prevent outward turning of the side arm beyond a predetermined position. The shoulders may, as shown, be inclined to the common axes of the bar 3 and side arm 4, the ends of the flats being correspondingly inclined.
Patent GB-285765-A (GB)
Title: Improvements in or relating to water channels for use on motor or other vehicles
IPC: B60R13/04
Filed: 1927-10-25
Abstract: 285,765. Howard, J. W. Oct. 25, 1927. Bodies.-Metal mouldings or beadings for motor vehicles are provided with an integral water channel. As shown, a metal sheet beading a is provided with an integral upturned portion b forming a channel c. The beading is filled with metal such as lead d in which pins e are embedded
Patent GB-187965-A (GB)
Title: Improvements in and relating to the manufacture of picks and similar tools
IPC: B21K11/10
Filed: 1922-10-19
Abstract: 187,965. Dochain, J. Oct. 31, 1921, [Convention date]. Picks.-The body portion of a pick or like tool is formed with parts of angular I or T section between the points and the socket to reduce weight. Figs. 1, 2, 3 show picks with the main part or body of T or I section, the web of which may be perforated as at a further to reduce the weight, the points b having the usual solid form. Fig. 4 shows various sectional forms in which the body portion may be made, the object being to reduce weight while maintaining the necessary strength and rigidity. Reference has been directed by the Comptroller to Specifications 21800/95, 10436/00, 10714/06 and 9060/08.