baber/WOPTO huggingface dataset:
Patent GB-641245-A (GB)
Title: Double current telegraph device
IPC: H04L12/10
Filed: 1947-06-13
Abstract: 641,245. Code telegraphy; telegraph exchange systems. STANDARD TELEPHONES & CABLES, Ltd. June 13, 1947, No. 15649. Convention date, June 19, 1946. [Class 40 (iii)] In a double-current telegraph system in which a central office provided with a source of signalling current is connected with an out station not provided with such a source, a two-wire line connects the central station with the out station, the double-current signals are sent from the central station to the out station over one wire and with an earth return, positive impulses from the out station are sent over one wire with an earth return and negative impulses from the out station are sent over .the other of the two wires with an earth return. In the arrangement shown positive impulses from the central office or station CO are sent over the wire A from the positive connection of winding 1 of receiving relay Rr, contact 9 of transmitting relay Tr, closed contacts of relay Cor energized by jack J. resistance ra, measuring jack Ka, closed contacts of key F, resistance R1, the junction of rectifiers r1, r2, winding of relay Ar and resistance Re to ground. The energization ot the relay Ar closes an operating circuit for a relay Msr which extends the circuit of the A wire over contact 14, closed contacts of calling key CA, rest contact R of transmitting relay TR and the winding of receiving relay RR to ground. Negative impulses from the central station pass from the negative source connected to the contact 10 of the relay Tr and pass over a similar circuit to the junction of the rectifiers r1, r2 where they pass via rectifier r1 over operated contacts 13, 14 to the previously traced circuit leading to the winding of the relay RR. From the out station the circuit for the positive impulses extends from the contact R of the transmitting relay TR over the circuit previously traced to the winding 1 of the relay Rr at the central station, the call having been initiated by the operation of key KA which closes a circuit over released contact 12 of relay Msr, released contact of relay Cor to relay Lr which illuminates a calling lamp AL and locks up over a second released contact of the relay Cor until the operator inserts jack J resulting in the operation of the relay Cor, thereby opening the locking circuit of the relay Lr and completing the circuit of the relay Ar and subsequently the relay Msr, as previously described. The negative impulses from the out station are transmitted over a path which extends from ground associated with the relay RR, contact T operated by the transmitting relay TR and the wire B to jack Kb and via resistance rb to negatively-connected second winding 2 of the relay Rr. The operation of the relay Mor illuminates a lamp CL to indicate that the motor M is connected in circuit and contacts CP, which are closed when the paper supply fails, short-circuit the winding of the relay Mor which releases, thereby disconnecting the motor M from its supply circuit and extinguishing the lamp CL.
Patent GB-861464-A (GB)
Title: Improvements in or relating to containers having hinged lids arranged to actuate electric switches
Inventor: THOMPSON THOMAS WILLIAM
IPC: H01H9/22
Filed: 1958-05-15
Abstract: 861,464. Retractive switches. GENERAL ELECTRIC CO. Ltd. May 1, 1959 [May 15, 1958], No. 15670/58. Class 38 (5). A hinge for actuating a micro-switch 15 when the lid 6 of a spin dryer, for example, is operated comprises two parts 8 and 9 pivotally connected by a pin 10. The switch 15 is carried on an arm 20 extending from the fixed part 9 of the hinge, which also has dependent lugs 18 in which an L-shaped actuating lever 14 is pivoted. Lever 14 is urged by a spring 16 into engagement with a nylon screw 13 which is adjustable in the rounded nose 12 of the moving hinge part 8 so as to control the relative position of the lid and body parts at which the switch 15 is actuated. When the lid 6 is fully opened (Fig. 4, not shown) the nylon screw 13 moves off the lever 14 which is maintained depressed by the nose 12. A flexible grummet 17 in an aperture in container wall 3 forms a seal round lever 14.
Patent GB-305889-A (GB)
Title: Improvements in talking machines
IPC: G11B33/02
Filed: 1928-05-29
Abstract: 305,889. Polak, J., and Lindstrom Akt.-Ges., C. May 29, 1928. Cases with internal horns.-Relates to gramophones of the enclosed horn type, in which a flap is pivoted about an horizontal axis at its lower edge at the mouth of the horn, the flap having lateral wings so that an extension of the horn is formed thereby when the flap is opened outwardly. According to the invention, the side wings 5 are hinged to the flap 3, so that they cam fold down flat against it when the flap closes the mouth of the horn 9, and springs 7 are provided, which automatically move the side wings into a position at right angles to the flap when the latter is opened. In this position, as shown in Fig. 2, studs 8 on the wings 5 snap into recesses in the front wall of the casing. By this means the flap 3 is held inclined outwardly.
Patent GB-759558-A (GB)
Title: Improvements in or relating to dispensing receptacle
IPC: B25H3/00
Filed: 1954-05-28
Abstract: 759,558. Rack stands. DOEPKE MANUFACTURING CO., C. W. May 28, 1954 [March 1, 1954], No. 15824/54. Class 52(3). [Also in Group XVII] One or a series of dispensing hoppers is removably mounted in a rack by the engagement of pivots on the sides of the hopper with notches in the rack. The rack comprises a base 11 having notches 20 in which fit ends 14 of bail handles 21. Extensions 13 for further hoppers are mounted as desired on the base. Stirrups 63 may be pivotally mounted in the rack to engage depressions 62 in the base of the hoppers to partially support their weight. The hoppers may be of known form and designed for stacking one upon the other by means of the bails, but having in addition a lid 15 the ends of which clip over curled ends 59 on the body. A spout 12 is secured to the lid which has an opening 16 giving access to the spout. A number of racks may be secured side by side.
Patent GB-717989-A (GB)
Title: Improvements in brackets for draughting machines
IPC: B43L13/06
Filed: 1952-06-25
Abstract: 717,989. Brackets for draughting-machines. CHAUVELON, A. J. F. June 25, 1952, No. 15937/52. Class 97(3) [Also in Group XXV] A bracket for releasably supporting a draughting-machine on an edge of a drawing board comprises two flanged jaws 1, 2 of which jaw 1 is frxed to a spindle 3' while jaw 2, through elongated openings in the flanges thereof, is pivoted about the spindle 3 against the action of a spring 4, the spindle passing at its mid-position through a yoke 6 attached to the jaw 2 and being pressed against the yoke by the spring 4. The jaw 1 is pivoted at 11, 12 to a U-shaped member 13 carrying a clip 25 engaging under hooks 27, 28 mounted on a plate 14 to which is secured a second plate 15 to which are pivoted the limbs of a parallel linkage of the draughting machine. Each limb of the member 13 has two depressions 23, 24 engageable by a button 22 on a leaf spring 18 to hold the member 13 in one of two positions at right angles.
Patent GB-1471961-A (GB)
Title: Azo dyestuffs and process for their manufacture
IPC: C08K5/34
Filed: 1974-04-10
Abstract: 1471961 Azo dyes CIBA-GEIGY AG 10 April 1974 [11 April 1973] 15961/74 Heading C4P New azo dyes, free from acidic watersolubilizing groups, of formula wherein R 1  is an optionally substituted alkyl, cycloalkyl, aryl or heterocyclic radical, Z 1  is =NH or -NH 2 , Z 2  is =NR 2 , -NHR 2 , -NR 3 R 4 , -OR 5  or -SR 6 , wherein each of the groups R 2 , R 3  and R 4 , which may be the same or different, is a hydrogen atom or an optionally substituted alkyl, cycloalkyl, aryl or heterocyclic radical or R 3  and R 4 , together with the nitrogen atom to which they are bonded, can form a 5-membered or 6-membered ring, R 5  is a hydrogen atom or an alkyl, cycloalkyl, aryl or heterocyclic radical, R 6  is a hydrogen atom or an alkyl, aralkyl, cycloalkyl, aryl or heterocyclic radical, Z 3  is =NR 1  or -NHR 1  wherein R 1  is as defined above, Y is -CONH 2  or -CN, and D is a radical of an aromatic or heterocyclic diazo component, and A is a dihydropyridine ring with the proviso that one of the radicals Z 1 , Z 2  and Z 3  contains a nitrogen atom attached to ring A by a double bond, are prepared by azo coupling, or when Y is -CONH 2  by treating a dye containing a -CN group with H 2 SO 4 . The dyes are used to colour wool, silk and leather and synthetic materials such as polyacrylonitriles, polyurethanes, polyolefins, cellulose acetates, polyamides and polyesters, in fibre form or in the mass in yellow to red shades. The preparation of mono- and dis-azo dyes is described in examples.
Patent GB-697613-A (GB)
Title: High intensity positive carbon electrodes
IPC: H05B31/10
Filed: 1950-06-27
Abstract: 697,613. Arc electrodes. UNION CARBIDE & CARBON CORPORATION. June 27, 1950 [July 6, 1949], No. 15979/50. Class 39(i) A high intensity positive carbon electrode, particularly for use in motion picture projectors, comprises a shell and a core, either one or both of which contains tungsten in a total amount between ' 0.1 per cent and 1 per cent by weight computed as tungsten oxide. The core may contain also a mixture of carbon and rare earth metal oxides and fluorides. The core may consist predominantly of rare earth metal oxides and fluorides with between 0.1 per cent and 0.5 per cent by weight of tungsten oxide preferably .25 per cent. The major portion of the shell may be composed of coke-base carbon. The diameter of the electrode can be between 6 and 8 mms. and the electrode can be operated at amperages varying from 30 to 70. Specification 14741/12, [Class 39(i)], is referred to.
Patent GB-374621-A (GB)
Title: Improvements in or relating to radio receivers
IPC: H04B1/18
Filed: 1931-06-01
Abstract: 374,621. Wireless receiving systems. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. June 1, 1931, No. 15989. Convention date, May 31, 1930. [Class 40 (v).] A receiver E, Fig. 2, is protected from disturbances due to an adjacent source of high-frequency energy by enclosing it in a screen B and arranging chokes L in all the out coming leads, except the earth lead, condensers C being associated with the chokes as shown in Fig. 2. In addition, a high-frequency choke L, Fig. 3, may be arranged in the lead to the grid of valves in the receiver, condenser C being connected between grid and filament.
Patent GB-1292925-A (GB)
Title: Urea formaldehyde condensation products
IPC: C08G12/12
Filed: 1970-04-03
Abstract: 1292925 Urea-formaldehyde fertilizers VEBACHEMIE AG 3 April 1970 [5 April 1969] 16000/70 Heading C3R [Also in Division C2]  Urea-formaldehyde condensates are prepared by reaction of a solution containing 400-800 g.p.l. of urea with a 30-40 wt. per cent formaldehyde solution in proportions giving a U : F molar ratio of 1À2-2:1, the mixture being subjected to a precondensation at pH 7-9 and 30-70‹ C. for 5-60 minutes, then a main condensation at 30-70‹ C. for 5-60 minutes after being cooled below 25‹ C. and adjusted to pH 2-4, the product being dried under conditions such that there is no substantial increase in the percentage of hot-water-insoluble nitrogen in the product. The flow diagram shows a system whereby reactants are led in turn through a mixer 5, a precondensation vessel 7, a cooler 6, a second mixer 5, a paddle-screw condensation vessel 8 and a stirred vessel 9 to a spray drier, the pH adjustments taking place in the mixers 5. The products are used as fertilizers. In the example, 555 moles of urea and 300 of formaldehyde per hour are treated in this manner, the pH's being 8À5 and 3.
Patent GB-717549-A (GB)
Title: Improvements in or relating to apparatus for the irradiation of body cavities with electrons of high energy
IPC: G21K1/10
Filed: 1952-06-25
Abstract: 717,549. Electron irradiation apparatus. SIEMENS-REINIGER-WERKE AKT.-GES. June 25, 1952 [July 3, 1951], No. 16002/52. Class 98(1) Apparatus for irradiation of body cavities with high energy electrons includes an applicator for introduction into the body cavities comprising a tubular casing with an entry opening into which the electrons are projected and having at its outlet end a cap permeable to fast electrons, the configuration of which is chosen to produce a desired dose distribution of the electron radiation. As shown in Fig. la, electrons are projected into a brass tube 1 having a thick flange 3 round the entry opening to absorb electrons. The outlet end has a cap 4 of material, e.g. " Plexiglass " (Registered Trade Mark), permeable to electrons. The close distribution, as shown by the isodose curves 5, is dependent on the shape of the cap 4. To broaden the field, a scattering foil 6, Fig. 1b. may be mounted close to cap 4. The foil 6 may be interchangeable and mounted on a tube 7 fitting within the tube 1. For further broadening of the field, foil 6 is made conical. To narrow the field, cap 4 is given a pointed shape. Some parts of the cap may be shielded with lead. or filters of irregular thickness, or grids similar to Bucky grids, may be fitted. The tube 1 may be bent, with a scattering foil or block of scattering material at the bend. The tube may include cadmium sulphide crystals for controlling the dose. Electrons may be projected from a betatron, having a flange spaced by slip gauges from flange 8, or a retractable optical device projecting a light beam into the tube and including a semi-transparent mirror for looking into the tube.
Patent GB-567423-A (GB)
Title: Method and apparatus for rubberising fabric
IPC: B29C67/24
Filed: 1942-11-12
Abstract: 567,423. Drying fabrics. FIRESTONE TYRE & RUBBER CO., Ltd. (Firestone Tire & Rubber Co.). Nov. 12, 1942, No. 16007. [Class 34 (i)] [Also in Group VIII] In a process for rubberising fabric for tyres or belting in which the fabric is first impregnated with an aqueous protein-rubber dispersion, dried and then heated to over 100‹ C., the initial drying of the impregnated fabric is effected by conveying the impregnated fabric through a drying chamber over internally cooled ridges, to minimize streaking of the fabric due to contact with conveying mechanism while the fabric is wet. A fabric from a roll 2 passes through pull rolls 3, a compensator unit 4 to take up variations in feed, lateral stretching rolls 5, an impregnating tank 6 containing an aqueous rubber-protein dispersion, squeeze rolls 8, under and compensating roll 9 and into a drying chamber 10. In the chamber into which hot air is introduced through pipes 11 and 12, the fabric passes around roller 13, and over ribbed or ridged fluted rollers 16, 17 mounted on stationary apertured drums or frames 14, and around driven apertured drums 15 having ribs 19. The ribbed rollers 16 and, if desired, 17 are cooled by introducing cold water through a pipe passing through a hollow shaft supporting one end of the roll. Drums 14 and 15 may have internal rotating paddles to circulate the hot air and force it outwardly through the fabric. The fabric may pass through a second drier 33, and the dried fabric after being brushed by rapidly rotating. brushes 39 and stretched laterally by rolls 40, is led by pull rolls 42 and conveyer 43 into a heating chamber 44 through which it is carried in festoons and heated above 100‹ C. for 30-60 minutes. The heat-treated fabric may be immediately coated with rubber in a calender 91 preparatory to building up tyres or belting, or may be wound up on a roll 90 for storage. The fabric may be weftless tyre cord fabric, or woven fabric of cotton, rayon, or glass filaments. Specification 546,171, [Group VIII], is referred to.
Patent GB-762532-A (GB)
Title: Improvements relating to electrical transducers
Inventor: FIELDEN JOHN ERNEST
IPC: G01L9/12
Filed: 1954-05-31
Abstract: 762,532. Measuring small movements. FIELDEN ELECTRONICS, Ltd. April 7, 1955 [May 31, 1954], No. 16025/54. Class 40 (1). In a system for measuring small movements, one plate b of a capacitive transducer is acted on by the movements and the other a is driven by an electrical instrument in the anode circuit of an oscillator V1. The capacitance of the transducer determines the amplitude of the oscillations generated and so the value of the anode current. Any movement of b is followed by a movement in the same direction of a to a new equilibrium position. The system is self-compensating for variations in supply voltage and valve characteristics. The anode current may include a distant meter.
Patent GB-1058488-A (GB)
Title: Improved photographic paper
IPC: C07D271/113
Filed: 1964-04-17
Abstract: The compound having the formula <FORM:1058488/C2/1> where p=6, is prepared by refluxing suberic acid dihydrazide with carbon disulphide in pyridine. Compounds wherein p is 4 or 8 are similarly prepared.
Patent GB-1277911-A (GB)
Title: An alarm clock mechanism
Inventor: PATRICK ALAN E
IPC: G04C21/36
Filed: 1969-03-27
Abstract: 1277911 Clocks GENERAL TIME CORP 20 March 1970 [27 March 1969] 16044/69 Heading G3T [Also in Division H1] An electric alarm clock combined with a radio has a selector shaft 70 which is biased by a spring 73 into a central "ON" position in which the radio is turned on via a switch consisting of the spring 73 and a fixed contact 74. The shaft 70 is of plastics and is secured to a resilient plastics selector arm 80 having a striker 83 which cooperates with detents 81, 82 in a frame plate (21) Figs.3 and 7 (not shown) to retain the shaft 70 in outer "OFF" and "AUTO" positions respectively, in which the switch 73, 74 is open. The alarm time is selected by means of a shaft 65 which is connected to an alarm set wheel 60 and a corresponding hand 62. At the pre-selected time, the shaft 70 is released from the "AUTO" position by deflection of the arm 80 resulting from axial movement of an hour wheel 50 as cam surfaces 53, 63 engage. The radio may be switched off for a "drowse" period by depression of a button 104 connected to a plastics arm 100 which is pivoted at 101. As the button 104 is depressed, a pawl 105 on a flexible extension of the arm 100 becomes engaged with a minute wheel 40, and the selector arm 80 is moved to the "OFF" position. As the minute wheel 40 rotates, the pawl 105 is released and the arm 100 is returned by a spring 102, carrying the selector arm 80 back to the "ON" position by means of a stop 111 on the arm 100 and a post 108 on the selector arm 80.
Patent GB-115768-A (GB)
Title: Improvements in or connected with the Propelling Means of Aeroplanes.
Inventor: WOLFF ALBERT
IPC: B64C39/00
Filed: 1917-11-03
Abstract: 115,768. Wolff, A. Nov. 3, 1917. Propelling; planes, arrangement of.-A number of vanes are arranged at the rear of the propeller of an aeroplane in such a manner as to obtain a forward component from the wash of the propeller. Fig. 2 shows one form in which two series of vertical vanes 2 are arranged at an inclination to the longitudinal axis of the machine and at the rear of two propellers 3, the axes of which are at a greater inclination than the vanes. In the form shown in Fig. 4, the vanes 7 are horizontally arranged behind a central propeller.
Patent GB-184315-A (GB)
Title: Improvements in or relating to apparatus for lifting and releasing tups
IPC: E02D7/08
Filed: 1921-06-11
Abstract: 184,315. Cammell, Laird, & Co., Ltd., Allan, J. M., and Loving, H. C. June 11, 1921. Power hammers; breaking.-The tup 1 of a drop hammer, used for instance for breaking a steel ingot 25 by driving a wedge 26 into a slot cut therein, has a conical or rounded knob 2 adapted to be seized by corresponding jaws 6 of a lifting-device so that relative rotation of these parts does not impair the operation. The jaws are pivoted at 8 to a weight 13, connected by a chain, rope, &c. to an electric or other winch and are normally closed to engage the knob 2 by a spring 10, Fig. 2, enclosed in a round-ended telescopic case 12 but opened, to release the tup, when rollers 18 engage the conical face 17 of a sleeve 16, which is supported by a ring 20 and brackets 21 so that it can rise if excessive lift occurs. Just before the release occurs, a yoke 27 is struck by the weight and moves a switch 28 to stop the winch. When the operator wishes the tup to fall, he restarts the winch; should he fail to stop it again, the yoke 27 does so by means of a second switch 29. A metal tube or other casing 5 may be provided and this may have an outer telescopic piece of tube near the bottom to stop flying parts. When not in use, the tup may be supported by a pin &c. 31 inserted through the casing 5. The bite of the jaws 6 is adjusted by a set-screw 23 and lock-screw 24. The knob 2 may be screwed to the tup.
Patent GB-943723-A (GB)
Title: Manufacture of alkali-boron tetra-alkyl complex compounds
IPC: C07F5/02
Filed: 1962-04-27
Abstract: Alkali metal boron tetra-alkyl complex compounds of the general formula MeBR4 are made by reacting free boron trialkyls of the general formula BR3 with aluminium complex compounds of the general formula Me[AIR3OR1] in which Me stands for alkali metal, e.g. sodium and/or potassium, R for an alkyl radical and R1 for an alkyl or cycloalkyl radical which may be substituted.  Preferably R contains up to 3 carbon atoms and R1 stands for alkyl having up to 10 carbon atoms.  The reaction may be effected in a solvent inert to the reactants, e.g. an aliphatic hydrocarbon such as hexane.  A suitable temperature range is from room temperature to 100 DEG C., preferably between 40 and 70 DEG C.  The by-product of formula AIR2OR1 can be reconverted to Me [AIR3OR1] by reacting with an alkali metal, hydrogen and an olefin as described in Specification 864,394. Examples describe the preparation of sodium boron tetraethyl, potassium boron tetraethyl, sodium boron tetra-propyl and sodium boron tetramethyl.
Patent GB-1502199-A (GB)
Title: Window or windscreen wiper mechanisms
IPC: B60S1/20
Filed: 1976-04-21
Abstract: 1502199 Window and windscreen wipers WYNSTRUMENTS Ltd 26 Nov 1976 [21 April 1976] 16168/76 Heading A4F A window or windscreen wiper drive mechanism for driving a wiper with a linear to and fro motion, comprises a carriage 15 disposed in a casing which comprises an elongate channel section member 1 having longitudinal tracks 9, 10, 12 disposed in orthogonal planes and on which wheels 18, 20 of the carriage run, the casing also comprising a removable cover 2 extending across the open longitudinal side of the member 1 and being selectively positionable thereon so as to define a longitudinal slot 14 between the cover 2 and the free edge of either one of the side walls 4, 5 of the member 1, the carriage bearing means 24 projecting through the slot 14 for attachment to a window or windscreen wiper 25. The alternative positions of the cover 2 allow the mechanism to be positioned either below or above a window or windscreen to be wiped, with the means 24 being secured to an appropriate two of four tapped bushes 22, 23 on the carriage. The carriage is driven by an electric motor (39), Fig. 2 (not shown), reduction gearing 38, a drive pulley 36, an endless drive belt 35 and a pivotal link 34 between the belt and the carriage. A spring-biased pulley 37 keeps the belt in tension. The side walls 4, 5 of the member 1 can be made integrally with the member 1, e.g. from sheet metal, or can be attached thereto e.g. by welding.