baber/WOPTO huggingface dataset:
Patent GB-560699-A (GB)
Title: New substituted ureas
IPC: C07C275/14
Filed: 1942-10-12
Abstract: Bis-ureas, useful as respiratory stimulants, of the formula X-CO-NR-A-NR1-CO-X (X is the secondary amino group corresponding to a dialkylamine or heterocyclic secondary amine XH of molecular weight not exceeding 120, R and R are alkoxyalkyl groups which jointly contain not more than 12 carbon atoms and A an alkylene chain of 2-6 carbon atoms which may bear one or more alkyl, alkoxy, or alkoxyalkyl substituents or a group consisting of two such alkylene chains united by -O-, -S-, -NH-, or -N.Alkyl-) are prepared by reaction of a diamine RNH-A-NHR1 with two molecular proportions of a carbamyl chloride X-CO-Cl, or two molecular proportions of phosgene to form the bis-carbamyl chloride Cl-CO-NR-A-NR1-CO-Cl which is then combined with two molecular proportions of an amine XH.  Examples give the preparation of NN1 - bis(b  - methoxyethyl)-ethylenediamine-NN1-dicarboxylic bis-diethylamide, NN1 - bis(isopropyloxyethyl) - ethylenediamine - NN1 - dicarboxylic - bis - dimethylamide, NN1 - bis - (b  - ethoxyethyl) - hexamethylene diamine - NN1 - dicarboxylic bis - dimethylamide, NN1 - bis - (b  - methoxyethyl)-ethylenediamine - NN1 - dicarboxylic bis - piperidide, NN1 - bis(b  -ethoxyethyl) - ethylenediamine - NN1 - dicarboxylic bis - piperidide, NN1 - bis(isopropyloxyethyl) - ethylenediamine-NN1 - dicarboxylic dimorpholide, NN1 - bis - (b  - n - butoxyethyl) - 2 - ethoxy - trimethylene diamine - NN1 - dicarboxylic dimorpholide.  NN1 - bis(b  - methoxyethyl) - ethylenediamine is obtained by reacting ethylene dibromide with an excess of aqueous b -methoxyethylamine which is prepared by the catalytic hydrogenation of methoxyacetonitrile in presence of Raney nickel.  NN1 - di - (b  - n - butoxyethyl) - 2 - ethoxy - trimethylene diamine is obtained by interaction of ethyl-b b 1-dichloroisopropyl ether (prepared by interaction of glycerol dichlorohydrin, ethyl iodide and silver oxide) and an excess of aqueous b -n-butoxyethylamine (prepared by catalytic hydrogenation of n-butoxyacetonitrile.  NN1 - bis - (b  - ethoxyethyl) - hexamethylene diamine is prepared by interaction of hexamethylene dibromide and an excess of aqueous b  - ethoxyethylamine (prepared by catalytic hydrogenation of ethoxyacetonitrile.  Specification 560,698 is referred to.
Patent GB-786222-A (GB)
Title: Improvements relating to potters' jiggers and like rotating devices for shaping or treating pottery ware
IPC: B28B1/02
Filed: 1955-05-18
Abstract: 786,222. Pottery manufacture. HANCOCK, W. May 14, 1956 '[May 18, 1955], No. 14289/55. Class 87(1) In a potter's jigger, the-metal head comprises a circular disc a with an upwardly directed peripheral flange a<SP>2</SP> and a central bore for the driving spindle and is provided with an external covering a<SP>4</SP> of polyvinyl chloride or other plastic material. The inner wall a<SP>3</SP> of the flange a<SP>2</SP> is tapered to accommodate the tapered part b<SP>1</SP> of a plastic mould b.
Patent GB-846171-A (GB)
Title: Colorimeter
IPC: G01N21/05
Filed: 1958-05-05
Abstract: 846,171. Colorimeters. TECHNICON INTERNATIONAL Ltd. May 5, 1958 [June 5, 1957], No. 14340/58. Class 40(3). [Also in Group XX] In a colorimeter in which light from a source 34 is focused on a portion 152 of a flow cell 78, through which liquid is passed, and then falls on a photo-cell 110, the flow cell 78 is adjustable in position and comprises input and output arms 136, 138 which are connected by U-tubes 148, 162 and straight tubes 168, 164 to an intermediate arm 150 which includes the viewing portion 152; it is mounted in a holder 70 by means of a ball and socket joint l72, 180 wit a liquid outlet 182, a ball 186 and a disengageable socket 192 carried by a toggle 192, 206, and a spring 190 and abutment 188. The holder 70 is guided by pins 132 and slot 134 for adjustment in the direction 130 and the socket member 192 is adjustable laterally by a screwed bolt 198 on which it is pivoted. Light from the source 34 is focused at 68 by concave mirrors 62, 64 provided with central apertures 66, 67. A light filter assembly 92 is provided. The portion 152 of the flow cell may be of flat rectangular or of circular cross-section. Specification 774,711 is referred to.
Patent GB-1112058-A (GB)
Title: Variable-configuration turbo machine blades
IPC: F01D5/14
Filed: 1967-03-30
Abstract: 1,112,58. Turbine and compressor blades; axial flow compressors. GENERAL MOTORS CORPORATION. March 30, 1967 [April 6, 1966], No.14535/67. Headings F1C and F1T. A variable configuration turbine or compressor blade comprises an aerofoil body pivotal about a spanwise axis, adjustable leading and trailing edge strips mounted on the body, and devices rotatable relative to the body about the spanwise axis and coupled to the ends of the strips to move them chordwise of the body. In the case of a compressor stator blade 8, the aerofoil body 10 has a stem 26 pivotally mounted in a casing 5 and connected to an arm 27 actuated to vary the angular setting of the body. Curved strips 11, 12 slidably engage in corresponding slots 14, 15, respectively, in the leading and trailing edges of the body 10. Pins 36, 37 at the radially outer ends of the strips engage in curved slots 38, 39 in a rotatable member 17 mounted in a pocket 18 of the casing 5, and pins 42, 43 at the inner ends of the strips similarly engage slots 44, 45 in a rotatable member 30. Members 17, 30 are rotatable, respectively, by an arm 22 and by an arm 33 at the end of a shaft 32 passing through the body 10. Thus rotation of the members 17, 30 relative to the body 10 causes the strips 11, 12 to move chordwise in the slots 14, 15 in the body to vary the chord length and camber angle of the blade. Relative rotation between the members 17, 30 causes the blade taper to be varied.
Patent GB-528872-A (GB)
Title: Improvements in or relating to resilient mountings
IPC: F16F1/44
Filed: 1939-05-16
Abstract: 528,872. Machinery mountings. FIRESTONE TYRE & RUBBER CO., Ltd. May 16, 1939, No. 14598. Convention date, May 17, 1938. [Class 80 (iv)] [Also in Group XXXI] A resilient mounting interposed between two bodies, one of which vibrates, which is especially adapted in the illustrated form for mounting vehicle engines in the supporting structure, comprises a core having rubber composition bonded thereto connected to one body, and an encompassing casing connected to the other body so as to contact the rubber composition ; the latter resisting relative movement between the two bodies in all directions. As illustrated in Figs. 2 and 3, a domed member 20 is formed integral with or fixed to the chassis, and a member 21 carrying a bearing member 34 forms part of, or is secured to, the engine. A metal core 22 having a covering 23 of resilient rubber bonded thereto on all four sides and on the rounded top, forms a seating for the member 34 to which it is attached by the securing bolt 37. When in position the rubber is under compression in one direction between the sides of the member 20 and in the other direction between the fixed head 24 and movable compression plate 25. The bolt 37 wedges the upper member 34 into the member 22 during the fixing process. The enlarged hole 32 in the member 20 permits play of the member 21 relatively to the member 20. Fig. 7 shows a modification in which the supported member rests on the upper surface 45 of an internally-threaded metal core and is secured thereto by a stud. Rubber 44, vulcanized to the core, is interposed between the latter and the surrounding casing 43 secured to the supporting member. This construction is stated to offer different resistance to deformation in different directions. Fig. 10 shows a cylindrical rubber block 61 provided with frusto-conical recesses 64 and squeezed between members 62, 63. A core 65 moulded into the rubber is connected to the supported member. Numerous modifications of this latter construction are described, with various portions cut away from the cylindrical block of rubber.
Patent GB-1429132-A (GB)
Title: /neumatic timing device particularly for time-delay relay
IPC: H01H50/88
Filed: 1974-04-02
Abstract: 1429132 Adjusting pneumatic dashpot timers; toothed gearing METZENAUER & JUNG GmbH 2 April 1974 [3 May 1973] 14598/74 Headings F2S and F2Q [Also in Division H1] A pneumatic dashpot timer has a timing passage 27 adjustable by a rotatable adjusting spindle 28, 35, the spindle co-operates with a toothed wheel 40 carrying a dial 46 to indicate the number of complete rotations of the adjusting spindle, the spindle carries a dial, Fig. 4, not shown, to indicate its angular position, and the co-operation between the spindle and the toothed wheel is such that a complete rotation of the spindle indexes the toothed wheel one tooth. The spindle has a single tooth 38. The toothed wheel 40 is locked between indexing movement by spring-pressed balls 43, Fig. 2. The indexing tooth 38 is formed on a detachable actuating head 35 of the adjusting spindle. To calibrate the timer this head is removed and the spindle is rotated so that a frusto-conical valve head on the spindle reduces the size of the timing passage to give a mean time delay value. The positions of the two dials corresponding to such a value are found from a table, Fig. 6, not shown, and the actuating head 35 is placed on the spindle with the dials in these positions. The timer is used to provide a time lag between the actuation of an electromagnet 12 and a microswitch 14. When the electromagnet 12 retracts a lever 11, a member 8 is permitted to move down and actuate the microswitch 14 at a rate determined by the flow of air (arrowed) into a bellows chamber. When the timing stroke is over, a spring 10 forces the member 8 quickly back to its original position, air being exhausted from the bellows chamber past a valve member 6.
Patent GB-1187980-A (GB)
Title: Presensitised Lithographic Plates.
Inventor: ATKINSON LAWRENCE
IPC: G03F7/06
Filed: 1966-10-28
Abstract: 1,187,980. Photographic materials and production of printing plates therefrom. ILFORD Ltd. Oct.19, 1967 [Oct. 28, 1966; March 30, 1967], Nos. 48491/ 66 and 14633/ 67. Headings G2C and G2M. A photographic material comprises a support with a hydrophilic surface coated with a negativeworking, ultraviolet sensitive layer, a protective layer or layers, the layer or the layer nearest the sensitive layer (if there is more than one layer) being a non-hardenable phenol-aldehyde resin, and a silver halide emulsion layer. The ultraviolet sensitive layer may be a diazo resin, polyvinyl cinnamate, styrene/ maleic anhydride copolymers containing a cinnamoyl or chalcone group, polyvinyl phosphoric chalcones, vinyl polymers containing aromatic azide groups in the side chain, diazidostilbenes, diazonium compounds with gelatine, acrylic resins or styrene/maleic anhydride copolymers, bichromated gelatine, naphthoquinone diazides, acrylamide and N, N<SP>1</SP> -methylene bisacrylamide, methylene fluorene sulphuric acid (Specification 768, 065) and cinnamoyl furfurylidene. If there is more than one protective layer, the upper layer is a stripping layer such as polyvinyl alcohol so that after formation of a silver image and exposure of the ultraviolet sensitive layer to this image, the silver image and stripping layer may be removed and a printing plate produced as set out below. The material is exposed to a positive image using visible light and the latent silver image is developed and fixed. The material is now uniformly exposed to ultraviolet light using the silver image as master and the emulsion and protective layers removed preferably in alkaline solution. If the ultraviolet sensitive compound is a diazo resin or a diazonium compound, the alkaline solution may contain a coupler so that an azo dye image is produced. The ultraviolet sensitive layer is developed and a two phase emulsion of an epoxy resin is cyclohexanone and an aqueous gum ambic solution optionally containing a pigment is applied; the epoxy resin protecting the image areas, to produce a positive printing plate. The silver halide emulsion may contain a developing agent such as hydroquinone If the support is transparent, the first exposure may be made through the support so a laterally correct image is produced.
Patent GB-416776-A (GB)
Title: Improvements in tooth brushes
IPC: A46B5/00
Filed: 1934-05-15
Abstract: 416,776. Brushes; handles. WEIERSMULLER, E., Suhr, Aargau, Switzerland. May 15, 1934, No. 14645. [Classes 19 and 61 (i).] A toothbrush is attached to a hollow handle a, Fig. 1, for containing dentifrice, which is applied by a spoon c carried by a detachable cap b. A cover e protects the bristles and may be removed and used to lengthen the handle. The brush can be detached and used with a separate handle f, Fig. 2.
Patent GB-278778-A (GB)
Title: Improvements in and relating to electric heating devices
IPC: F24C15/10
Filed: 1926-06-10
Abstract: 278,778. British Thomson-Houston Co., Ltd., and Leevers, F. W. June 10, 1926. Heating by electricity; electric stoves.-An immersion heater or a heater for cooking purposes is mounted for movement about a horizontal axis the movement actuating the heater switch. The immersion heater 9 is arranged at one end of a bent arm 10 fitted with a handle 20 and pivoted in a pedestal 13 carrying a rotary or tumbler switch engaged by the end of the arm. The pedestal is clamped on top of a cooking range 14. The arm may work in a slot in the pedestal and may be held in the out-of-the-way position by a spring-pressed detent entering the slot or by a spring clip. In a modification the immersion heater is replaced by a cover containing a heater. The arm may be in two parts connected by a plug and socket connection. Specifications 245,846; 252,336, [Class 75 (iii), Lamps &c., Details of], and 272,676 are referred to.
Patent GB-1379007-A (GB)
Title: Method and apparatus for forming tubes for example tubular battery  separators
IPC: B31C1/00
Filed: 1973-03-27
Abstract: 1379007 Making tubular separator ESB Inc 27 March 1973 14671/73 Heading H1B [Also in Division F2] A method of forming a tube comprises advancing a sheet 20 of material to be rolled into a tube through a slot 28 in a hollow former 24, the slot extending parallel to the axis of the bore 26, subjecting the sheet as it enters the bore to a jet of gas (from nozzle 32) tangential to the bore and removing the tube axially from the former. A jet of gas (from nozzle 30) may be used to feed the sheet 20 into slot 28 and guides 36 can be provided for guiding the edges of the sheet. Apparatus for feeding and cutting off required lengths of sheet material from a stock roll can also be provided. For removing the tube from the former, means such as movable baffles 34 at one or both ends of the former are provided to create a pressure differential between the ends of the former when the tube is ready for ejection. The formed tube can be of paper or non-woven fabric and used as a separator in a battery cell, in which case the tube is ejected from the former directly into a cell can assembly 40 having a tubular lining 42 of a depolarizer mix and arranged coaxially with the bore 26.
Patent GB-311736-A (GB)
Title: Improvements in and relating to fuel feed devices
IPC: F27D99/00
Filed: 1929-05-13
Abstract: 311,736. Ingenieur Gairing Ma,schinenfabrik Ges. May 15, 1928, [Convention date]. Fuel, feeding. - In a fuel-feeding device operated through pawl and ratchet gearing by an oscillatory lever 3, the stroke of the lever is regulated by a stop 8 which is adjusted in position by a rod 2 having at its upper end an operating knob or handle 1. The upper part of the rod 2 is formed with a screw-thread 5 in which engage a spring-pressed ball 4 and a grub-screw 6, adjustment of the stop 8 being effected by rotating the rod 2. If a quick adjustment is desired, the screw 6 is withdrawn and the rod 2 moved up or down to the required extent.
Patent GB-129168-A (GB)
Title: Improvements in Crutches for Invalids and Cripples.
Inventor: HUNT CHARLES
IPC: A61H3/02
Filed: 1918-09-13
Abstract: 129,168. Hunt, C. Sept. 13, 1918. Crutches. - In crutches having an adjustable handgrip and having the armrest capable of rocking, the pin g which secures the hand-grip in the holes i is provided with nuts h which can be set to allow the supports a to spread, as shown by dotted lines, to increase the resilience of the crutch. The arm-rest is furnished with a lug b which passes between jaws f<1> of a head f to which the supports are secured. The jaws may be arranged to project downwards so as to embrace the supports laterally. The fulcrum pin is preferably in two parts j, j<1> which screw one within the other.
Patent GB-539062-A (GB)
Title: Improvements in and relating to variable velocity ratio gearing
IPC: F16H3/36
Filed: 1940-02-23
Abstract: 539,062. Variable-speed gearing. WYCLIFFE FOUNDRY CO., Ltd., and HEALEY, F. J. Feb. 23, 1940, No. 14918. Divided out of 529,506. [Class 80 (ii)] Relates to variable-speed gearing of the kind in which toothed wheels 24, Fig. 2, of different diameters, arranged in the form of a cone, are alternatively engaged by a displaceable toothed wheel 11 on a shaft inclined to the axis of the cone, and the wheels 24 are, as described in Specification 212,483, [Class 80 (ii)], provided with dog teeth for effecting a one-way driving connection with an adjacent wheel. In the arrangement described in the prior Specification, the dog teeth are so formed that the relative rotation between adjacent wheels, which occurs during the change of gear, causes the dog teeth to ride upon another, so as to move the wheels axially apart. According to the invention, the dog teeth are formed as shown in Fig. 13, so as to provide for an initial rotational movement bewteen adjacent wheels before the axial movement occurs. The teeth of the incoming wheel may thus come into alignment with the toothspaces of the sliding wheel, and harsh and delayed gear-changing is avoided. Flat surfaces 38 are left between the inclined faces 39 of the teeth and the abutting faces 37, so as to provide the lost motion. The apices of the teeth are preferably formed with flat surfaces. The diameter of the shaft carrying the cone-wheels is preferably increased by steps at intervals, in order to limit the movement of the wheels along the shaft.
Patent GB-1437917-A (GB)
Title: Bistate transistor circuit
IPC: H03K3/2893
Filed: 1974-04-04
Abstract: 1437917 Transistor switching circuits STANDARD TELEPHONES & CABLES Ltd 4 April 1974 14983/74 Heading H3T In a bistate circuit including a first transistor TR3, a second transistor TR2, a third transistor TR1 of opposite conductivity type to the first and second transistors, a voltage responsive means, such as Zener diode, ZD1 connected to the base of the first transistor TR3 and a capacitive delay C1 connected between the collector and emitter of the second transistor TR2, the voltage responsive means ZD1 is arranged such that, when the voltage of the power supply is greater than a predetermined level the first transistor TR3 switches on, which switches off the second transistor TR2 so as to switch off the third transistor TR1 after a delay determined by the capacitive delay C1, and when the power supply voltage is less than a predetermined level, the second transistor TR2 is switched on to maintain the third transistor TR1 conductive. The circuit may be used in a reset circuit in a telephone subset having push-button dialling. The power supply voltage to the bistate circuit rises when a button is pressed after the hand set has been taken off the hook and the bistate circuit is in a first condition with TR1 on and TR2, TR3 off. This output state at OP causes the logic and stores of the subset circuit to reset to zero. When the supply voltage exceeds the predetermined level the Zener diode ZD1 breaks down, TR3 turns on and TR2 turns off. This allows the capacitor C1 to charge via TR1, R4, R5, R6 to maintain TR1 on for a delay time after which TR1 switches off so that the output OP is at the second condition. If the supply voltage is reduced such as at the end of outpulsing or as the result of a line fault the circuit reverts to its first condition. The switching levels of the circuit may be altered by inserting forward biased silicon diodes D2, D3 in emitter circuit of TR2 and TR3. FET's may be used.
Patent GB-1079895-A (GB)
Title: Refrigeration warning system
IPC: G05D23/24
Filed: 1965-04-08
Abstract: 1,079,895. Thermistors. CLARK EQUIPMENT CO. April 8, 1965 [July 13, 1964], No. 15007/65. Heading H1K. [Also in Division G4] A device for sensing refrigerator temperature, and to operate an alarm when predetermined temperature limits-either maximum or minimum or both-are exceeded, is designed to have a thermal lag constant matching that of the refrigerator contents. A device to simulate the thermal lag of meat consists of a metal cylinder 11 (Fig. 1, not shown) enclosed in plastic foam (12) with the temperature sensitive element, a thermistor, secured and sealed in an aperture in the metal by means of epoxy resin (15). The thermistor (14) may form one arm of a D.C. or (as in Fig. 4, not shown) A.C. bridge which on attainment of the maximum or minimum safe temperature becomes sufficiently unbalanced to energize a relay operating the alarm. A plurality of refrigerators may be connected in a common alarm system (see Division G4).
Patent GB-1127948-A (GB)
Title: Improvements in furnaces and other heating chambers heated by fluid fuel burners
Inventor: MANSFIELD JOHN CHARLES
IPC: F27B17/00
Filed: 1966-04-05
Abstract: 1,127,948. Radiant heating tubes. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 31 March, 1967 [5 April, 1966], No. 15066/66. Heading F4B. High velocity gas burners 4 fire into radiant refractory tubes 3 mounted in recesses 2 in at least the side walls 1<SP>1</SP> of a brick lined furnace chamber 1. The inlet ends 3<SP>1</SP> of the tubes are adjustably spaced from the burners, to induce recirculation of gas from the chamber through the tubes to equalize temperatures throughout the tube lengths. The gaps 6 at the outlet ends of the tubes may also be adjustable. In a modification, aligned tubes with a space between them are fitted into the recesses with burners firing into the non-adjacent ends of both tubes.
Patent GB-279349-A (GB)
Title: Improvements in and in the manufacture of sheet metal tanks or containers
IPC: B62J35/00
Filed: 1926-09-10
Abstract: 279,349. Woodward, F. E. Sept. 10, 1926. Tanks having the top and sides formed of troughshaped pressings 1, 2, Fig. 4, have inturned and outturned flanges 3 so that they can be welded together from the exterior. The bottom 4 may be separately formed, or the pressings may each constitute half of the bottom as in Fig. 3. Specification 252,860 is referred to.
Patent GB-272513-A (GB)
Title: Protection of loading coils in submarine cables against pressure
IPC: H02G15/14
Filed: 1927-06-08
Abstract: 272,513. International General Electric Co., Inc., (Assignees of Allgemeine Electricitõts-Ges.). June 8, 1926, [Convention date]. Loaded cables.-Relates to a method of protecting the loading coils of a submarine cable against external pressure whilst maintaining the flexibility of the cable at the coil position and keeping its diameter within a certain limit to meet the convenience of laying. According to the invention, metal discs are inserted between the loading coils and are provided with rims which extend over the coils and support the lead sheath of the cable. The loading coils 1 are inserted between discs 2 which are placed transversely to the length of the cable. Each disc has a rim 2<1> which extends over the coils and is provided with one or more helical grooves 3 to receive a tension wire for holding the discs together. The conductors of the cable pass either through apertures in the discs or along a second group of grooves 7, also formed in the rims. The discs are of non- magnetic material, preferably copper, and have central bulges 6 which centre and hold the coils 1.