baber/WOPTO huggingface dataset:
Patent GB-1381307-A (GB)
Title: Method for the measurement of direct currents with floating input and direct time indication
IPC: G01R19/20
Filed: 1972-03-15
Abstract: 1381307 Measuring direct current LICENTIA PATENT-VERWALTUNGS GmbH 15 March 1972 [15 March 1971] 12167/72 Heading G1U An unknown direct current I m , Fig.1, to be measured, is applied to a winding 4 on a core 3 which also carries a winding 2 through which a cyclically varying symmetrical reference current, which may be triangular as shown by the full line curve Fig.2a, or sinusoidal, is passed so that the voltage U i  induced in a pick-up coil 5, which in the absence of any unknown current I m  would also be symmetrical, as shown by the full line curve Fig.2d, is rendered asymmetrical as shown by the dotted curve. This signal U i  is differentiated 7, Fig.1, to produce a signal Ud, Fig.2e, which is used to control a trigger 8 thereby producing a signal U s , Fig.2f, whose mark/space ratio represents the magnitude of the unknown current I m . In a modification Fig.3 (not shown) two circuits similar to that shown in Fig.1 are employed, and the outputs of the two triggers are appropriately combined whereby the overall sensitivity of the system is increased.
Patent GB-829522-A (GB)
Title: Improvements in and relating to an anchoring or anchor bolt device
IPC: E21D21/00
Filed: 1958-04-17
Abstract: 829,522. Anchor-bolts &c. ANCIENS ETABLISSEMENTS GOLDENBERG & CIE. April 17, 1958 [April 19, 1957], No. 12248/58. Class 89(1) An anchor-bolt comprises a bolt-member 5, Fig. 1, provided with one or more groups of cams 9, 21 co-operating with corresponding ramps 10, 22 on shells 1, 2, one of the cam-groups, e.g. 9, being constituted by a block 6 with an aperture 8 therethrough to receive guide-means 11 protruding from the inner-faces of the shells. In addition, the shells may be held in assembly with block 6 by a rivet 13, and are urged towards each other by a band 15. Where a second group of cams 21 is provided, they are formed on a block 16 integral with block 6, and cause circumferential-expansion of the skirts of the shells as allowed by slits 4. An axial-bore in block 16 is screwed to receive an end of rod 5, which has an axial-screwed-bore to receive a screw 20. The other end of rod 5 is screwed for a nut 23 having an unthreaded-end 27, Fig. 5. In use, the device is inserted in a bore and nut 23 turned to rotate bolt 5 until screw 20 abuts rivet 13. Thereafter, further turning of the nut draws blocks 6, 16 down until the force required to turn the nut causes the bolt to pass through end 27, and the nut then applies a washer 26 to the wall about the bore-hole. Specification 827,276 is referred to.
Patent GB-456336-A (GB)
Title: Improvements in and relating to the treatment of fibres or fibrous materials containing keratin
IPC: D01C3/00
Filed: 1935-04-23
Abstract: A method of removing stress from or applying a set to fibrous substances containing keratin such as wool or hair comprises treating the fibrous substances with an acid sulphite solution at temperatures of about 50--60 DEG  C. and under such conditions that the solution in contact with the fibrous substances is at approximately pH6 whereby there is obtained a disruption of the constituent disulphide or cystine bonds of keratin and a relief of any stress in the fibres followed by the formation of further linkages in or between the fibre molecules.  The acid sulphite solution may be circulated around the material being treated at a pH of 6 or may be applied at a pH of about 8 in small amounts which react with the material and are reduced to a pH of about 6. In an example hair after a preliminary shampoo is treated with a half molar solution of sodium metabisulphite and sulphite in water containing 5 per cent of alcohol, the proportion of sulphite and metabisulphite being such as to give a pH of 6.  The solution is circulated about the hair wound on a curler for about 15 minutes as a temperature of 50--60 DEG  C. If preferred a 12 per cent sodium sulphite solution to which metabisulphite has been added to attain a pH of 8 may be used without circulation.  In either case after the treatment, with the hair still preferably on the curler a solution of an aldehyde or a ketone, e.g. 60 per cent acetone is applied for 2--3 minutes to combine with the excess bisulphite. Treatment with a mild oxidizing agent, e.g. a 2--10 volumes hydrogen peroxide solution, preferably made acid, a percarbonate perborate or persulphate may follow or replace the treatment with aldehyde or ketone.  Ordinary washing and finishing treatments follow.  If desired a thickening agent such as agar-agar or kieselguhr may be added to the reducing solution to form a paste with which the hair is formed into waves or curls on the head. Suitable wetting agents may also be added to the paste, which is left in contact with the hair for about 15 minutes and then raised to a temperature of about 50 DEG  C., e.g. by a stream of hot air (the hair being covered with a water impermeable cap) to set the waves or curls.  Alternatively the hair may be formed into waves or curls and then treated with the reducing solution.  The reagents may be applied by spraying.  The treatment may be used in place of the usual crabbing or blowing treatments of wool, for the removal of distortion in knitted fabrics due to uneven stress in the yarn or yarns for the manufacture of curl fabrics or artificial astrakhan and persian lamb fabrics may be permanently set by the method of the invention.
Patent GB-616064-A (GB)
Title: Improvements relating to the location and boring of position holes
IPC: B23B47/28
Filed: 1945-12-07
Abstract: 616,064. Positioning gauges. STAINTON, D. E. Dec. 7, 1945, No. 12278/48. Divided out of 615,982. Drawings to Specification. [Class 60] [Also in Group XXII] A position hole locating and boring, drilling or tapping jig comprises a knuckle unit having a pair of elements hinged together by a tool guiding bush, each element having a wringing surface parallel to and at a predetermined distance from the hinge axis, the surfaces being located so that they lie at right angles to one another when the longitudinal axis of the elements are at right angles, each element being provided with means for facilitating the securing of length means to said surface and extending normal thereto. The constructional features are identical with those described in Specification 615,982 but, instead of a triangular frame with three jig or guiding elements the use of a single knuckle unit or of a pair of knuckle units is described. Specifications 564,065 and 572,357, [both in Group XIX], also are referred to.
Patent GB-871165-A (GB)
Title: Sewing machine with work-carrying bed
IPC: D05B15/02
Filed: 1958-04-21
Abstract: 871,165. Sewing machines. SINGER MANUFACTURING CO. April 21, 1958 [May 22, 1957], No. 12498/58. Class 112 Frames, work guides. In a free arm sewing machine in which the direction Y-Y of work feed is transverse to the axis X-X of the arm 11, the free end of the latter is provided with a protuberance 29 extending in front of the stitching point 18 to direct a tube of fabric 32 up the arm as the fabric is stitched into a tube on the sewing machine by a longitudinal ram 33. The protuberance is formed on a hinged door which closes an opening in the front of the bed providing access to the looptaker. The concave inner side 31 of the protuberance provides an abutment for the irregularly shaped folds that form at the inner side of the tube, and prevents said folds from moving towards the stitching point.
Patent GB-1384357-A (GB)
Title: Pulsed neutron porosity and neutron lifetime logging
IPC: G01V5/10
Filed: 1973-03-15
Abstract: 1384357 Neutron well-logging TEXACO DEVELOPMENT CORP 15 March 1973 [17 May 1972] 12527/73 Heading G1A The porosity of earth formations surrounding a well borehole is measured by irradiating the formation with high energy neutron pulses, detecting during at least two intervals between successive pulses the gamma radiation resulting from the capture of thermalised neutrons, deriving from the measurements the thermal neutron decay time and combining this time with the neutron pulse duration and the number of 7-ray counts occuring during one of the detection intervals to derive a porosity related parameter. As shown, Fig.1, the apparatus consists of a log head containing a pulsed fast neutron source 11 and a detector comprising a scintillator 12 and a photo-multiplier 10. The fast neutrons are thermalised and then captured by the earth formations 3, the excited atoms then returning to the ground state with the emission of a γ-ray. A discriminator 18 rejects low energy pulses produced by background radiation and the remaining pulses are passed to the surface processing circuitry which uses a known sliding gate method involving the opening of three gates 21, 22, 23 in sequence between neutron pulses to produce counts representing the neutron decay characteristics. The processing circuitry 25 determines the thermal neutron decay time and produces a control signal to the neutron source pulsing circuit 14 so that a pulse of neutrons having a length equal to this decay time is emitted by source 11. The gates 21 to 23 are also controlled to open at times and for periods related to the decay time. Signals representing the thermal neutron decay time together with the number of counts received while the first gate 21 is open and the time for which the source is pulsed (if this differs from the decay time) are applied to a porosity computer 26 which determines the neutron moderation time by means of given equations. The moderation time depends on the hydrogen content of the earth formations which is related to the porosity. A recorder 27 plots the neutron decay time and the neutron moderation time (which may be calibrated in terms of porosity) as a function of the depth of the log as determined from the rotation of the cable sheave 9.
Patent GB-289490-A (GB)
Title: Improvements in or relating to radio direction finding apparatus
IPC: G01S3/08
Filed: 1928-04-28
Abstract: 289,490. Marconi's Wireless Telegraph Co., Ltd., (Assignees of Kroger, F. H.). April 29, 1927, [Convention date]. Directive signalling.-Relates to the provision in direction-finding equipment, of means for (a) automatically balancing-out the out-of-phase induction from adjacent masts and other earthed conductors which tends to obscure or blur the critical minimum or maximum readings, and (b) removing the 180‹ ambiguity in the sense of direction. As shown in Fig. 1, signal voltages received on the direction-finding loop 1 are fed through leads 5, 6 and coils 7, 8 to the grids of two high frequency amplifiers 11, 12 arranged in push-pull relation. The required compensating voltage is derived from a separate open aerial 13, which, when the switch 18 is in the right-hand position is connected to earth at 51 through two coils 47, 48 coupled to the grid coils 7, 8. The output from the valves 11, 12 is fed through a transformer 43<1> to a detector valve 41 forming part of a superheterodyne receiver comprising a local oscillator 43. Coupled to the secondary coils 39, 40 of the transformer 43<1> is a coil 26 which, when the aerial switch 18 is in the lefthand position, supplies the necessary voltage from the aerial 13 to remove the well-known 180‹ ambiguity and so ascertain the sense of direction. An inductive shunt 117 across the coils 47, 48 serves as a vernier adjustment to compensate for minor variations in the local circumstances. The constructional details are shown in Fig. 4. The direction-finding loop is mounted on a hollow rotatable spindle 52 which supports an adjustable spider 55 carrying a ring 56 on which the coils 7, 8 are housed, as shown, in close proximity to the coils 47, 48, the latter being carried by fixed brackets 66, 67. The Specification as open to inspection under Sect. 91 (3) (a) comprises also an alternative arrangement in which the open aerial 13 is replaced by a closed loop which is fixed in position substantially at right-angles to the prevailing " mast effect." This subject-matter does not appear in the Specification as accepted.
Patent GB-450034-A (GB)
Title: Improvements in or relating to power transmission mechanism
IPC: F16D47/06
Filed: 1935-04-27
Abstract: 450,034. Hydraulic transmission of power. GUY MOTORS, Ltd., Fallings Park, Wolverhampton, EDWARDS, C. K., 121, Church Lane, Handsworth Wood, Birmingham, and REECE, J. E., 115, Woden Avenue, Wednesfield, Staffordshire. April 27, 1935, No. 12635. [Class 69 (ii)] The driving and driven members of a hydraulic coupling are electromagnetically locked together when the speed of the driving or driven shaft exceeds a predetermined value, and means may be provided for interrupting the locking at will or when changing gear. In the form shown, the circuit of the electromagnetic clutch member 6 is controlled by a switch 15 having a quick-throw spring 29 and operated by lugs 28, 30 on a rod 26 operatively connected to a governor 24.
Patent GB-650774-A (GB)
Title: Line designation identifying means
IPC: H04M15/08
Filed: 1947-05-09
Abstract: 650,774. Automatic exchange systems. WESTERN ELECTRIC CO., Inc. May 9, 1947, No. 12635. Convention date, May 17, 1946. [Class 40 (iv)] [Also in Group XL (c)] A generator 56, Fig. 3, in a line identifier associated with a selecting stage, transmits a single pulse over the P-wire of a calling line A (No. 5238) to mark and register the calling number in the identifier. The Figures should be arranged as shown in Fig. 6. The P-wires are connected through cold cathode gas-discharge tubes 15, 16 to two groups of common conductors TH00-TH99 and TU00-TU99, the first group marking the thousands and hundreds digits and the second group the tens and units. The common conductors are connected through discharge tubes 23, 24, 40, 43 to groups of conductors TH0-TH9, H0-H9, T0-T9, U0-U9, marking the thousands, hundreds, tens and units digits. The common conductors TH00-TH99 are also connected to a conduotor OFF1 marking the exchange. The common conductors are common to a plurality of identifiers in the same exchange. Transfer to register. Each numerical conductor is connected to one anode of a tube 54 which fires only when potentials are applied simultaneously to both anodes. The second anode is connected directly to the pulse generator 56. A second tube 55 follows in series with a relay R8 in the register. Relay R8 extinguishes 55 and holds so long as normallyoperated relay ON remains operated. The gas discharge tubes all extinguish at the end of a pulse. Fault signals. If two register relays R0-R9 operate together, relay CK does not follow and ON releases to operate an alarm, not shown. If battery B3 fails tube 120 is extinguished and normally-operated relay A1 falls back to operate an alarm. Pulse generator. When a number of identifiers are connected to the system, the pulsing tubes 56 are arranged to operate cyclically. Firing potentials are applied to the pulsing tubes over conductors 116-119 from a thyratron ring comprising tubes 75-78. The thyratron ring is controlled by a tube 74 which generates a short pulse once in every cycle of the A.C. from the generator 59 (see Group XL (c)). Specification 548,932 is referred to.
Patent GB-272464-A (GB)
Title: Improvement in apparatus for operating suction actuated devices in connection with the suction passage of an internal combustion engine
IPC: F02M1/00
Filed: 1927-05-11
Abstract: 272,464. Bragg, C. S., and Kliesrath, V. W. June 11, 1926, [Convention date]. Preventing stopping of engine when actuating auxiliary suction apparatus. - In engines the suction of which is utilized to operate a suctionactuated device, " stalling " of the engine and delay in re-starting due to the weakening of the combustible mixture by air exhausted from the device are prevented by drawing the air from the device into the manifold through an auxiliary carburettor in which means are provided for equalizing the pressures in the float chamber and Venturi passage thereof. The invention is described in its application to the brake-actuating mechanism of a motor vehicle, but is not restricted thereto. The intake manifold 61 is provided with a main carburettor 66 having a throttle valve 69 and a fuel supply pipe 68. Inserted in the pipe 26 through which air is withdrawn from the suction-actuated device is a check valve 65 and an auxiliary carburettor 76 the float chamber 77 of which receives its supply from the pipe 68. The Venturi passage 78 surrounds a fuel nozzle 79 fed from the float chamber the air space in which is connected to the pipe 26 by a pipe 81. By this means, fuel is prevented from issuing from the nozzle at all times except when air is being drawn through the pipe 26. Specification 243,332, [Class 8 (ii), Air and gases, Treating &c.], is referred to.
Patent GB-612713-A (GB)
Title: Method of forming metal by working it over or through a die
IPC: B21C9/02
Filed: 1945-05-22
Abstract: 612,713. Drawing; stamping; forging; squirting; spinning; making cased forms. INDIUM CORPORATION OF AMERICA. May 22, 1945, No. 12725. Convention date, May 20, 1944. [Classes 83 (ii) and 83 (iv)] [Also in Group XXXIV] Soldering; uniting by fusion.-In working metal stock over or through a die, a thin layer of indium or indium alloy is interposed between the metal and die to reduce friction and facilitate the working operations, which may consist of stamping, drawing, spinning, cold forging or extrusion. The stock may consist of copperclad steel and the indium may be applied thereto as a coating either alone or as a codeposit with another metal by electroplating, powder metallurgy, hot dipping, casting or spraying, being diffused into the base metal by heat or mechanical working. The Specification as open to inspection under Sect. 91 relates also to a method of making composite metal articles, particularly bearings with high wear-resisting qualities, table utensils, ash trays, &c., consisting in building-up by welding on a steel base a layer of non-ferrous metal such as copper, bronze or brass, which may be followed by an optional intermediate layer of metals such as lead, tin, cadmium, silver, babbit metal or indium and then a final layer of indium or indium alloy by heating to 165‹ C. to cause diffusion at the surfaces or by mechanical working. The layers may be applied by electroplating, powder metallurgy, hot dipping, casting or spraying, &c. over the base metal before or after its fabrication. Softer metals such as tin, cadmium, lead, &c. may be used as the first layer metal, in which case an intermediate layer of another metal is unnecessary and the indium applied direct on the tin &c. layer. Tools such as 10, 12, Fig. 2 (Cancelled), for cutting clad sheets during making of the articles may be drawn across the metal to unite the cladding metals 14 before cutting in order to avoid exposing the edges of the corrodible interior metal 16. This subjectmatter does not appear in the Specification as accepted.
Patent GB-543106-A (GB)
Title: Improvements in electrodes for electron emission
IPC: H01J43/10
Filed: 1940-08-09
Abstract: 543,106. Electron-multipliers. BOSCH, F. J. G. VAN DEN, and VACUUM-SCIENCE PRODUCTS, Ltd. Aug. 9, 1940, No. 12806. Addition to 516,621. [Class 39 (i)] In secondary electron emitting electrodes as described in the parent Specification, the depressions in which the holes are provided are formed contiguous so as to cover the whole surface of the electrode. The depressions 13 may be of polygonal form, preferably hexagonal, triangular or rectangular, or of curved form with the margins of adjacent depressions intersecting. The holes 14 are circular and their margins merge gradually into the straight walls of the depressions. The electrodes may be in the form of discs or cylindrical plates, and the depressions are disposed relatively to the supporting members, such as 9, so that they may be staggered in successive electrodes.
Patent GB-815034-A (GB)
Title: Improvements in or relating to tuned electromagnetic relays
IPC: H01H51/32
Filed: 1957-04-18
Abstract: 815,034. Electromagnetic interrupters. SIEMENS & HALSKE A.G. April 18, 1957 [April 20, 1956], No. 12806/57. Class 38 (5). A tuned electromagnetic relay is provided with a saturable magnetic core and air damping means acting on its vibrating reed so that its sensitivity to other frequencies is considerably reduced and the peak of its response curve is flattened. A permanent magnet D and the vibratory reed Z are mounted on a base-plate T which also carries the coil S and the core E as well as the damper W and the contact assembly K. The core E is pincer-shaped and consists of high permeability material having a small cross-section, so as to saturate at slightly above the operating current at the resonant frequency so that even if excessive current is applied outside the operating range the relay will not operate. In order to flatten the peak of the response curve the damper W is arranged so that the reed Z just misses it when vibrating. Fig. 2 (not shown) shows the operating-current/ frequency characteristics of a relay without a saturable core or damping, and with these features. A contact on the reed Z engages a contact spring F with its free end engaging in a hole in an adjustable stop G. Contacts and damper blocks may be provided on each side of the reed (Fig. 1a, not shown) with the contacts mounted between the dampers and the coil.
Patent GB-352591-A (GB)
Title: Means for starting the engines of electric generating plant in which the prime mover is a compression ignition engine
IPC: H02J3/38
Filed: 1930-04-26
Abstract: 352,591. Starting prime movers. LISTER & CO., Ltd., R. A. and ATTWOOD, F. A., 55, Garden Suburb, both in Dursley, Gloucestershire. April 26, 1930, No. 12905. [Class 38 (iv).] In an electric generating plant in which the prime mover is a compression-ignition engine, the engine is provided with electrically controlled means for reducing the normal compression space to facilitate compression ignition when starting. The engine is turned by an electric motor, the compression being (1) relieved by opening the exhaust valve, (2) increased by closing the exhaust valve and shutting off part of the compression space in order to start ignition, and (3) restored to normal by connecting the cylinder to the additional compression space. As shown in Fig. 2, the engine cylinder 12 is provided with compression spaces 32, 33 normally in communication, and the space 32 can be shut off by a valve 31 such as that described in Specification 322,097, [Class 7 (ii), Internalcombustion engines, Arrangement &c. of]. The valve 31 is connected by links 29, 30 normally held in the position shown by a spring 34, and actuated by the armature 28 of a solenoid 27. The exhaust valve 11 is actuated through a tappet 13, push rod 14, and rocker 15, and is lifted at starting by a rotatable member 16 having an arm 17 engaging a flange 25 on the tappet 13 ; the member 16 is connected by a rod 19 to a bell-crank lever 20 held by a spring 24 in engagement with a member 23 actuated by a solenoid 8, which may be controlled by a dashpot. The solenoids 27, 8 are controlled from the generating plant as indicated in Fig. 1. An electromagnetic switch 2 closes its contacts 5 when the load supplied by the battery 6 reaches a certain percentage of the capacity of the plant, and the contacts 5 control a circuit including three electromagnets 7, 8, 9. The electromagnet 7 closes the circuits of the generator 10, a series winding 26, and the solenoid 27, and the exhaust valve is held open by the member 16, so that the generator acts as a starting motor and the engine is turned over without compression, while the compression space 32 is cut off by the valve 31. After an interval determined by a dashpot 80, the solenoid 8 releases the member 17 from the tappet 13 and allows the exhaust valve to close, establishing high compression to ensure firing. After a further interval, determined by a dashpot 37, the electromagnet 9 closes contacts 38, cutting out the series winding 26 and the solenoid 27, so that normal compression is established by the opening of the valve 31, and the machine 10 is driven as a generator. The engine may be stopped by the fuel cut-off means described in Specification 352,524, which may be operated by a solenoid in the circuit of the switch 7.