baber/WOPTO huggingface dataset:
Patent GB-170915-A (GB)
Title: Improvements in balanced electrical relays
IPC: H01H47/14
Filed: 1920-07-27
Abstract: 170,915. Railing, A. H., Garrard, C. C., and Wilson, W. July 27, 1920. Protective arrangements; electromagnetic and magnetic switches; contacts.-Balanced electric relays, for use in conjunction with protective arrangements of the type described in Specification 105,356, are constructed with solenoids E, E<1> mounted in a frame B, their plungers D, D, being hung from an arm A, supported on two fulcra C, C<1>. These fulcra are so disposed that the out-of-balance current must exceed a predetermined proportion of the total current passed before the energization of the coil affected is sufficiently strong to rock the bar A on its adjacent pivot, thereby completing a tripping-circuit through contacts F, G or F1, G1.
Patent GB-1034285-A (GB)
Title: Organic isocyanates
Inventor: NICHOLAS ANDREW JOHN
IPC: C07C263/10
Filed: 1964-05-29
Abstract: Organic isocyanates are obtained by reacting phosgene with a primary polyamine in the presence of an inert organic diluent, the initial chemical combination of the reactants being performed by separately introducing liquid phosgene and a solution of the primary amine in an inert liquid organic diluent into a tubular reactor through which a stream of a mixture of phosgene and the initial reaction products in the same solvent is passed continuously by recirculation.  The temperature in the tubular reactor is preferably maintained at 8-50 DEG  C. and the pressure is atmospheric or slightly above.  Suitable organic diluents are, e.g., toluene, xylene, mono- and di-chlorbenzene, chlortoluene, trichlorofluoromethane, ethyl, butyl and hexyl acetates and dimethyl and diethyl carbonates.  The process may be used to produce, for example, tolylene 2,4- and 2,6-diisocyanate, diphenylmethane - 4,41 - diisocyanate, 3 - methyl - diphenylmethane - 4,41-diisocyanate, m- and p-phenylene diisocyanate diphenyl - 4,41 - diisocyanate and naphthalene-1,5-diisocyanate.
Patent GB-1078846-A (GB)
Title: 1,1'-alkylene-2,2'-bipyridylium halides
Inventor: BRAUNHOLTZ JOHN THEODORE
IPC: C07D213/22
Filed: 1963-06-05
Abstract: 1,11-Alkylene-2,21-bipyridylium halides are made by reacting 2,21-bipyridyl with a mixture of halogen and a 1-alkene.  Preferably the alkene has 2-10 carbon atoms.  The products have the formula <FORM:1078846/C2/1> in which R is an alkyl group and X is a halogen atom.  The reaction is preferably carried out in a solvent at 80-160 DEG  C. in the presence of a solid catalyst for example sodium chloride, glass wool and silica gel.
Patent GB-1416169-A (GB)
Title: Raster centering circuit
IPC: H04N3/227
Filed: 1972-05-12
Abstract: 1416169 Cathode-ray tube circuits; field time bases RCA CORPORATION 11 May 1973 [12 May 1972] 22339/72 Headings H4T and H3T Vertical positioning (centering) of the rastor on an electromagnetically deflected cathode-ray tube is effected by controllably shunting some of the deflection current from the deflection coil so that an effective positioning current is introduced. Fig. 2, shows one embodiment in which, during the positively going portion of the deflection wave 35, capacitor 44 charges with the polarity shown thus depleting the deflection current, assumed to be flowing " downwardly " in the vertical deflection windings 38a, 38b so that, effectively, a positioning current flows " upwardly " from ground. During the negatively going portion of waveform 35 capacitor 44 discharges via resistor 48 and a portion of potentiometer 49 to its negative terminal and the current which was diverted from the deflection coils is replenished to capacitor 36 by an increased current from ground to capacitor 36 so that the effective positioning current continues to be provided and adjustment of potentiometer 49 (towards the left hand position) controls the magnitude of the positioning adjustment in a first direction. T'o control positioning in the opposite direction (potentiometer 49 towards the right hand position) the effective positioning current is produced by capacitor 46 charging with the polarity shown during the negatively going retrace portions of waveform 35 so that the lower electrode of capacitor 36 (point 37) has a positive charge and at the end of the retrace portion, when capacitor 46 ceases to charge, it discharges through potentiometer 49, resistor 48 and coils 38a to ground thus generating a positioning current in the opposite direction. The vertical deflection amplifier 33 is provided with a D.C. feedback path comprising resistors 42, 52 and an A.C. feedback path comprising a sampling resistor 40 and resistor 41 and is D.C. coupled instead of A.C. coupled to the amplifier input to reduce picture " bounce " caused by (television) receiver channel switching or by noisy vertical synch signals and to prevent variations of the D.C. operating point of the amplifier caused by the voltage drop across resistor 40 due to the positioning current, an opposite polarity voltage is derived via resistors 50, 51 and added to the D.C. feedback voltage. Fig. 3, shows a second embodiment in which diodes 45 and 47 deplete or increase, respectively, the charge on capacitor 36 during the positively and negatively going portions respectively of the waveform 35 which charge is respectively replenished or decreased during the other respective portions of the waveform 35 to produce the required, effective, positioning current.
Patent GB-840850-A (GB)
Title: Improvements relating to high frequency aerial-arrangements
IPC: H01Q1/36
Filed: 1956-07-19
Abstract: 840,850. Aerials. TELEFUNKEN G.m.b.H. July 19, 1956 [July 19, 1955], No. 22386/56. Class 40(7). A dipole aerial comprises a plastic tube 5 in which are embedded conductive rings 6, 6a, 6b, and 6c. Between the rings 6 and 6a extend a plurality of thin conductors 7 wound spirally on non-conductive cores and embedded in the tube 5, these form the upper quarter wave element of the dipole and are connected at point 11 to the inner conductor of the feeder 10. Conductors 7a, similarly arranged to conductors 7 and embedded in the tube 5 between rings 6b and 6c, form the lower quarter wave element and the ring 6b is connected at 12 to the outer conductor of feeder 10. Over the lower end of the tube 5 is fitted a cast-iron ring 8 which can be moved to tune the quarter-wave isolating line formed between the coaxial cable outer and the lower aerial element. Instead of each of the conductors 7, 7a being spiralled about its own individual axis all of them may be spiralled about the central axis of the aerial (Figs. 3a and 3b, both not shown). Such an arrangement enables the physical length of the aerial to be shortened. The plastic supports for the dipole elements may be conical or barrel-shaped instead of circular-cylindrical and strengthening strands of glass or synthetic fibres can be incorporated. The conductors and non-conductive strands may be formed into a woven hose before being moulded into the tubular support.
Patent GB-299699-A (GB)
Title: Improvement in aeronautical landing field
IPC: B64F1/20
Filed: 1928-08-02
Abstract: 299,699. Kenney, M. A., (Assignee of Gibbons, R.). Oct. 29, 1927, [Convention date]. Luminous semaphore signals. - Illuminated apparatus for automatically indicating the direction of the wind on an aerodrome comprises sets of lights A - - D, Fig. 1, which are selectively operated by a switch controlled by a wind vane. Central set of continuously-lighted lamps E is provided. One set of terminals of all the lamps is connected in series by wires 3, 4, 2, 5 to one battery lead 1. The other terminals of lamps E are continuously connected to battery lead 7, while those of each set A - - D are connected to terminals 10a - - 10d of a switch-arm 15 which is always in contact with a ring 13 connected to lead 7. The arm 15 its mounted on a, spindle 17, Fig. 2, carrying a windvane 18. The switch is enclosed in a casing 16 filled with oil acting in conjunction with damping vanes 19, or the like on the spindle 17. The lamps are preferably of the neon type housed in the usual manner.
Patent GB-728880-A (GB)
Title: Improvements relating to capseals for container closures and methods for forming thesame
IPC: B65D53/04
Filed: 1953-08-14
Abstract: 728,880. Capseals for container closures. AMERICAN FLANGE & MANUFACTURING CO., Inc. Aug. 14, 1953 [March 31, 1953], No. 22474/53. Class 125 (3). A tamperproof capseal fitted over the head 5 of a screw plug closure 6 of a barrel or drum and having a top 1 and skirt 2 has internal scores 22, 23 up the skirt and across the top and a sealing ring 24 with portions extending into the scores where it crosses them to avoid leakage at said scores. Tabs 14, 15 are in alignment with the scores and the screwplug has a gasket 17. The scores may converge to a single score across the top or they may have diagonal scores in addition to the parallel scores of Fig. 2. The gasket is applied to the scored cap in fluid state and formed in situ.
Patent GB-1415459-A (GB)
Title: Rotary hydraulic servo-mechanism
IPC: F15B9/14
Filed: 1973-05-11
Abstract: 1415459 Rotary positive-displacement fluid-machines MITSUBISHI KINZOKU KK 11 May 1973 [11 May 1972 19 May 1972 23 Oct 1972 #2 10 March 1973] 22524/73 Heading F1F [Also in Division G3] The output shaft 2 of a rotary hydraulic servomotor is connected to a rotor forming within a housing 1 a number of oil chambers 11, 12, 13, 14 which may be connected by passages, such as 27, 27R and 29 with passages, such as 23, 9b and 9, in an input shaft 4, so that rotation of the shaft connects some of the chambers with a fluid supply line 24 and the other chambers with a drain line 24 whereby the rotor is turned until its original relationship with the shaft is restored. The chambers may be formed by radial vanes 15, 16, 17 urged outwardly by springs and more than three vanes may be provided they may also co-operate with a chamber of elliptical crosssection. In a modification, the vanes are urged outwardly by fluid pressure and the communication between the input shaft and the chambers includes passages in an end-wall of the housing. The chamber containing the rotor 201, may also have the shape illustrated in Fig. 6.
Patent GB-828267-A (GB)
Title: Improvements in domestic pans
IPC: A47J36/22
Filed: 1957-07-17
Abstract: 828,267. Kitchen utensils. SMITH, C. J. July 16, 1958 [July 17, 1957], No. 22598/57. Class 66. A saucepan A for use with an inner container e.g. a vegetable chip basket B has slots a formed in its upper edge so that projections b on the inner container engage in the slots to support the inner container while allowing a lid (not shown) to seat on the pan clear of the projections.
Patent GB-318722-A (GB)
Title: Improvements relating to machine tools for cutting metals
IPC: B23Q11/10
Filed: 1928-08-04
Abstract: 318,722. Asquith, Ltd., W., and Feather, G. Aug. 4, 1928. Drilling; lubricating cutting tools.-In metal cutting machine tools lubricant is automatically supplied to the tool either when the tool contacts with the work or when a feed, lock, or other motion is actuated and is automatically cut-off under reverse circumstances. As applied to a drilling-machine with a feed motion as described in Specification 297,549 and in which a hand feed automatically engages a power clutch c<4> when the drill encounters resistance, a ring c<3> attached to the movable clutch member has a recess c<2> and a conical surface c<5>. The lubricant delivery pipe a<9> is connected by a series of swivel joints to a valve line a containing a spring seated ball valve A. When the clutch is engaged the surface c<5> cams a ball c and depresses a plunger C opening the valve. When the clutch is disengaged a spring c<1> returns the plunger permitting the ball A to seat. The valve may be controlled by the means for locking the saddle or arm of a radial drilling-machine.
Patent GB-267081-A (GB)
Title: Electrical connection and method of forming the same
IPC: H01R43/12
Filed: 1926-09-15
Abstract: 267,081. National Carbon Co., Inc., (Assignees of Plimmer. A. G.). March 3. 1926, [Convention date]. Direct connections between conductors.-A lead 23 is secured to a carbon brush 24 by forming in the brush two intersecting passages 25, 26 into one of which the lead is inserted, to be gripped by a gripping member 27 in the other passage. The gripping member 27 may be a single element having end portions 28 approximately filling the passage 26 connected by a neck 29 so as to leave a groove in which the lead 23 lies. The neck may be central or at one side of the end portions and is deformed by pressing the end portions together to grip the lead. The gripping member may consist of two members coacting as a rivet 37, 41 and washer 38, 42 the lead being gripped between them by riveting them together. The rivet and washer may have slotted flanges to grip the sides of the passage 26 frictionally. A pair of members so flanged that they are held in place by the frictional grip in the passage 26 may be employed and may have grooved or interlocking faces. The passage 25 may be a groove in one side of the brush, the gripping member being a plug with two jaws, the jaws being pressed together upon the lead 23 and the plug then forced into the passage 26 in the brush. After securing the lead the whole joint is copper plated and tinned.
Patent GB-1587473-A (GB)
Title: Electronic maximum recording device
IPC: G01R21/133
Filed: 1978-05-25
Abstract: The mechanism essentially consists of two shift registers (5, 8) to which an adder (6) and comparator (9) are allocated, a control mechanism (4), an indicating device (13) and a mechanical cumulative counting mechanism (19) and restoring-type counting mechanism (20). A method for operating the mechanism in work phases is specified. <IMAGE>
Patent GB-170148-A (GB)
Title: Improvements in the construction of electric switches
IPC: H01H33/18
Filed: 1920-08-03
Abstract: 170,148. Bolton, R. A. R. Aug. 3, 1920. Oil switches; magnetic blow-outs; contacts.-Relates to electric circuit-breaking devices of the kind comprising two or more simultaneous breaks in series or in parallel so disposed that the joint electromagnetic action of the arc currents produces a lateral spreading of the arcs away from the contacts, and consists in providing lateral projections on the contacts arranged in pairs, which act as paths to guide the movements of the arc and to retain during their movements a relative disposition in which they are fully effective in producing the spreading action, and at the same time the additional conductor lengths thus included in the circuit assist electromagnetically in the extinguishing of the arcs. The fixed contacts b of an oil switch are secured on the circuit to copper rods insulated by bushes c, these contacts being adapted to be bridged by contacts at the ends of a bar d which is moved vertically downwards in the opening of the switch. Pairs of curved lateral projections e, f are provided on the fixed and movable contacts, the said projections lying in the plane of travel of the arcs formed when the circuit is broken. In an alternative form of circuitbreaker in which two pairs of breaking points are used, vertical bars carrying fixed contacts may be arranged at the four corners of a square and the lateral contact projections for guiding the arcs may be disposed along lines directed outwardly along a line radiating from the centre of the square, the direction of current at the breaking points being such that the mutual interaction between the arcs force them along such lines.
Patent GB-413509-A (GB)
Title: Improvements in electrodes or welding rods for use in welding
IPC: B23K35/40
Filed: 1933-08-16
Abstract: 413,509. Covering wire cores. BURNS, A. M., 304, Great Western Road, and PROCTOR, W. F., 15, Bonaccord Crescent, both in Aberdeen. Aug. 16, 1933, No. 22895. [Class 109.] Welding rods are coated with strips of slag-forming material such as asbestos fibres, cotton tape or felt by placing a metal core lengthwise between rollers b, c mounted at the upper edge of a flux tank d and lowering thereon a roller a carried by a hand lever e. The rollers are driven in the same direction by chains, belts &c. f, so as to wrap the strip on the core in a series of layers or in a single layer with a butt joint.
Patent GB-517677-A (GB)
Title: A new or improved combined check valve and vacuum relief valve
IPC: F16K15/00
Filed: 1938-08-03
Abstract: 517,677. Valves. GROENIGER, W. C. Aug. 3, 1938, No, 22972. Convention date, Aug. 3, 1937. [Class 135] A valve device for preventing return flow and for admitting air to the conduit to prevent a vacuum forming therein has a hinged non-return valve 17 adapted to co-operate with a seat arranged about the inlet 14 and a flexible fish-mouth breather valve 25 arranged in a branch conduit 21. The valve 25 has a flange 24 clamped between a recessed washer 23 and a washer 26 by a cap 30 screwed on to the branch conduit 21. The washer 26 has a central aperture 27 and upstanding lugs 38 adapted to support a buoyant ball valve 29 floated into contact with a seat 33 in the event of the breather valve leaking.
Patent GB-1362332-A (GB)
Title: Combination machine for making threaded articles
IPC: B21H9/02
Filed: 1972-05-16
Abstract: 1362332 Making screws HARTFORD SPECIAL MACHINERY CO 16 May 1972 [3 June 1971] 22983/72 Heading B3A Apparatus for making pointed and threaded articles comprises a point forming station 28, a feed shoot 22 for supplying blanks 16 to the point forming station, a thread rolling station 30, a feed shoot 26 for receiving blanks from the point forming station and delivering them to the thread rolling station and movable mounting means supporting the point forming station for selectively adjusting the height of the point forming station relative to the feed shoots. In operation the blanks are fed from a hopper 14 down the inclined shoot 22 to an indexing dial 80 which indexes the blanks through 90 degrees to a position between dies 68, 70 of the point forming station. The die 68 is reciprocated by means of a crank-shaft 44 to effect the successive pointing of the blanks, the reciprocation of the carrier 60 indexing the dial 80 via lever 88, spring-biased plunger 86, pawl 84 and ratchet 82. After pointing, the blanks are indexed through 90 degrees and discharged down the shoot 26. The blanks are then fed successively by a finger 124 to the thread rolling station which comprises a fixed die 108 and a reciprocating die 110. A pneumatic sensor 144 is positioned in the shoot 22 to stop the crank-shaft 44 when there is an absence of blanks, thus preventing damage to the die 68, 70. A second pneumatic sensor 144A is positioned in shoot 26 to stop the crank-shaft 44 when the shoot 26 is in danger of becoming overfilled.
Patent GB-1191631-A (GB)
Title: Separation of M-Cresol from Cresol Mixtures
Inventor: SANTHANAM CHAKRAVARTI JAGANNAT
IPC: C07C37/86
Filed: 1966-05-24
Abstract: 1,191,631. Separating mixtures of phenolic isomers. STRUTHERS SCIENTIFIC & INTERNATIONAL CORP. 23 May, 1967 [24 May, 1966], No. 23043/66. Heading C2C. In separating m-cresol from cresol mixtures, by forming an adduct with urea and then decomposing the adduct into its components at a higher temperature, the process is accelerated by adding a small proportion of an activation agent to the mixture. The specified activation agents are nitrites, chromates, bromates, iodates, molybdates, phosphates or ammonium salts, to which sodium chloride may be added. The ureaphenol adduct is separated by crystallization, suitably at 50-55‹ F., and is later decomposed by heating, suitably at 110‹ F., or above. A suitable laboratory apparatus and a full-scale plant are described, and in the latter the separation of the adduct from the mixture is effected in stages.
Patent GB-1067384-A (GB)
Title: A distributor for fertilizer or other pulverulent or granular material
Inventor: QUICK ELMER JAMES
IPC: A01C15/16
Filed: 1965-05-31
Abstract: 1,067,384. Fertilizer distributers. DEERE & CO. May 31, 1965 [June 15, 1964], No. 23074/65. Heading A1D. Fertilizer is discharged from a distributer via opening 32 by two feed wheels 34, 36 mounted on a shaft 22 which is driven by a variable speed gear 26. The gear is driven by shaft 28 interconnected with a land wheel. Agitators and impellers 44, 46 are also mounted on the shaft 22. The feed wheels are partially enclosed by an assembly 50, 52, 54 and by a baffle assembly 60 (Fig. 1, not shown). Bearings 20 (Fig. 1) in each end wall are adapted to receive an agitator shaft. A single feed wheel may be employed. The distributer is carried by and forms the rear portion of a grain drill.
Patent GB-503722-A (GB)
Title: Amplifier with negative feedback
IPC: H03F1/36
Filed: 1938-08-05
Abstract: 503,722. Valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd. (Siemens & Halske Akt.-Ges.) Aug. 5, 1938, No. 23206. [Class 40 (v)] In a negative feedback amplifier the feedback path includes a network comprising a negative resistance device and arranged to determine the phase rotation in the feedback path. Fig. 1 shows the equivalent of a negative inductance and comprises resistances R, condenser'C and a negative resistance -R which may be a dynatron, or a hot conductor such as uranium dioxide the properties of which are described in Specification 466,132. This negative inductance -L in the network LR1, Fig. 2, gives a frequency dependent but real resistance with zero phase-rotation.
Patent GB-1010001-A (GB)
Title: Improvements in or relating to character recognition systems
IPC: G01R19/00
Filed: 1963-06-11
Abstract: 1,010,001. Automatic character reading. COMPAGNIE DES MACHINES BULL. June 11, 1963 [June 19, 1962], No. 23250/63. Addition to 951014. Heading G4R. In a character recognition system as described in the parent Specification a comparator unit for determining the highest integration signal obtained during a scanning sub-cycle consists in an amplifier A10, Fig. 1, and a feed-back loop consisting of a Zener diode DZ. The action of the amplifier and diode is to keep the potential of the input constant by balancing the currents from terminals B11 and B12 with a feed-back current. The applied voltages e1 and e2 are of opposite values and the potential across the diode DZ is zero or its critical voltage depending upon the direction of current flow in the diode. The two state output therefore indicates that e1 or e2 is the larger. A series of eight such circuits 401-408, Fig. 2 receive respectively the four true voltages Sh, Sv, Sd1 and Sd2 from the four integrators and their inverses-Sh etc. A reference voltage SM is applied to each comparator derived by applying the above four signals and their inversers to a diode OR gate 100 to obtain the highest signal. Resistors 1R and 9R give 90% of this highest value which is used as the reference input. The highest signal gives a corresponding output on one of the terminals 421-428. Other outputs may be produced from signals exceeding 90% of the highest, such a multiple output being used to reject the character as described in the parent case. For each comparator stage a further similar comparator may be provided receiving the same signal 8, h etc. and a fixed reference signal. This comparator produces an output indicating that the contrast between two predetermined portions elemental area scanned is higher than a given value, i.e. that the elemental area does in fact include the edge of a character stroke. A gate receives the outputs from both comparators and passes a signal only if both are present.