baber/WOPTO huggingface dataset:
Patent GB-956080-A (GB)
Title: Improvements relating to vertical shaft dynamo-electric machines
Inventor: WALKER JACK HOLMES
IPC: H02K5/00
Filed: 1962-04-30
Abstract: 956,080. Dynamo-electric machines. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 10, 1963 [April 30, 1962], No. 16421/62. Heading H2A. The stator laminations of a large vertical shaft synchronous machine, e.g. a waterwheel generator or pump, are supported solely by the concrete foundation bed at a position axially spaced from the point where the rotor supporting framework is situated. The rotor supporting framework, which includes a thrust bearing, may be mounted above (as shown), or below, Fig. 2 (not shown), the stator core. Stator laminations 2 are clamped together by bolts 3 which also serve to securely retain clamping plates 6, 6<SP>1</SP> both of which are used in securing the stator to the foundation member 7<SP>1</SP>. Plate 6 is constructed as an integral part of the foundation and plate 6<SP>1</SP> is attached to member 8 which is itself attached to plate 9 which is integral with the foundation, and thus thermal expansion is accommodated in the joint between members 8 and 9. The foundations comprise a number of columns 71 projecting radially inwards from main foundations 7 to provide a support for rotor bearing bracket 10 which bears on plate 12. Specification 863,683 is referred to.
Patent GB-495267-A (GB)
Title: Improvements in or relating to the production of chlorine dioxide
IPC: C01B11/02
Filed: 1937-06-14
Abstract: <PICT:0495267/III/1> Chlorine dioxide is obtained by separating chlorine from a gas mixture including chlorine and chlorine dioxide by selective absorption of the chlorine by lime, subjecting the thus partially chlorinated lime to further chlorination to form calcium chlorate, reacting the thus formed calcium chlorate with hydrochloric acid to liberate a gas mixture of chlorine and chlorine dioxide, supplying this gas mixture to the first-mentioned separation and taking off chlorine dioxide from this separation.  The further chlorination of the lime may be effected in the presence of sufficient water to dissolve the calcium chlorate formed, and preferably at a temperature of 50-80 DEG  C., the resulting liquor then being contacted with the hydrochloric acid.  As the liquor contains calcium chloride, hydrochloric acid may be replaced by another acid such as sulphuric acid.  Before or after separation of calcium sulphate from the residual liquor, the liquor may be treated with steam to decompose the residual calcium chlorate to produce chlorine.  It is then concentrated, replenished with sulphuric acid and returned to the process.  Lime is contacted with a mixture of chlorine and chlorine dioxide in a separator 31 consisting of a rotating cylinder provided with internal lifts to shower the lime through the gas.  The partially chlorinated lime is mixed with water in a tank 4 and the resulting slurry is chlorinated in tile packed towers 11 and 5 at 50-80 DEG  C. with chlorine supplied through a pipe 6.  The resulting liquor is cooled in a tank 9 to 20-30 DEG  C. and is supplied to a generator 21 together with 32 per cent hydrochloric acid from a tank 101.  Air is forced into the lower end of the generator, the resulting mixture of chlorine and chlorine dioxide mixed with air passing through a pipe 12 to the separator 31 and a mixture of chlorine dioxide and air issuing through a pipe 13. The residual liquor from the generator 21 is treated with steam in a recovery tower 15, the resulting mixture of chlorine dioxide and chlorine passing to the tower 11 through a pipe 8 and being supplemented by make-up chlorine from a pipe 7.  The chlorine dioxide may be converted into alkali or alkaline earth metal chlorites by absorption in an aqueous solution or suspensions of the corresponding hydroxide in the presence of a reducing agent such as sulphur dioxide or petroleum coke.  Sodium and calcium chlorites may be so produced. Specification 460,376 is referred to.  The Specification as open to inspection under Sect. 91 comprises also controlling the acid-treating step so that the molar ratio HCl : ClO3 lies between 2 : 1 and 3,5 : 1, or if sulphuric acid is used, so that the amount of water present exceeds 50 per cent by weight of the solid mixture and the ratio by weight of water to chlorine present as chlorate exceeds 3 : 1.  The reaction temperature of this step should be 10-50 DEG  C. This subject-matter does not appear in the Specification as accepted.
Patent GB-991909-A (GB)
Title: Improvements in or relating to the provision of adhesively bondable surfaces on bodies of thermoplastic synthetic resins
IPC: B29C65/48
Filed: 1961-05-05
Abstract: An adhesively bondable surface is provided on an article of thermoplastic synthetic resin by forming a layer from a pulverulent mixture of the thermoplastic synthetic resin and a finely divided, porous, inorganic material, contacting this layer with the surface of a body of the thermoplastic synthetic resin and uniting the layer and the body by the application of heat, e.g. from a high-frequency device, and pressure.  The "body" may itself be a powdered mass of the resin, which is sintered together at the same time as the bondable surface is provided, or either or both of the body and the layer may be consolidated separately before they are brought together.  The thermoplastic material may be a polymer of ethylene, propylene or tetrafluoroethylene.  The porous material may be activated carbon, kieselguhr, pumice, alumina or silica; some at least of its particles are only partially embedded at the porous surface.  Two or more layers of mixture in different proportions may be used, so that the layer having the highest content of synthetic resin is nearest to the pure synthetic resin.  The surface containing the porous material bonds readily to other surfaces by means of conventional adhesives.
Patent GB-420978-A (GB)
Title: Improvements in or relating to the suspension of movable vehicles
IPC: B60G21/045
Filed: 1933-06-08
Abstract: 420,978. Vehicle-suspension systems. LAKE, G. F., Beverley, Sandy Lane, Billing- ham, Stockton-on-Tees. June 8, 1933, No. 16435. [Class 108 (ii)] In a vehicle-suspension system, two wheelcarrying members AB, CD are pivotally connected to the frame at points A, D and to a common link at points E, F, at least one of the connections including a shackle EB or FC, the common link being pivotally connected at two spaced points, which as shown are the points E, F, to two supporting links EG, FH which in turn are pivotally connected to the frame at points G, H so disposed that displacement of either wheel relatively to the frame displaces the common link into a position wherein it tends, under the weight of the vehicle, to restore the wheels to their original relative positions. As shown in Fig. 1 the common link EF is a strut and the wheel-carrying members are leafsprings which are shackled or directly secured to the ends of the frame. Springs however may be entirely dispensed with. Dashpots &c. may be interposed between the wheels and frame. Fig. 3 shows a modified construction in which the common link EF is a tie.
Patent GB-239964-A (GB)
Title: Improvements in means for propelling punts, skiffs and the like
IPC: B63H1/32
Filed: 1924-07-09
Abstract: 239,964. Denton, W. L. July 0, 1924. Propelling, steering, and manoeuvring by reciprocating and vibrating plates.- Propelling and steering apparatus of the kind comprising a swinging frame having pivoted flaps and wherein adjustable stops provide for setting the flaps for forward or reverse running is characterized by means for varying the plane of action of the frame to provide a steering effect. The frame 5 and hand lever 3 are clamped to a bracket e pivotally supported at d on a swivel 1 carried on a bracket g clamped to the stern of the boat 2. The bracket is secured also by a hook-ended rod h with an intermediate tension nut j. The swivelling portion of the pin 1 preferably is supported on ball bearings on the fixed part. The pivoted flaps in the frame 5 are adapted to abut against stops 8, Fig. 5, on a sleeve 9 and normally held in position by springs 11. To change direction of propulsion, the stops are pulled along the guide 10 by a wire control 12 until opposite the opening 8<a> in the flaps, when the flap can swing over the stop which is then released on the opposite side. In place of the pivot pin, a universal joint mounting may be used. The apparatus may be mounted in pairs on the gunwales.
Patent GB-138024-A (GB)
Title: Stitch-forming mechanism for chain stitch sewing machines
IPC: D05B3/14
Filed: 1919-07-02
Abstract: 138,024. Fairweather, W., (Singer Manufacturing Co.). July 2, 1919. Sewing-machines; chain-stitching. - In a machine with a laterally vibrating needle, chainstitches are formed by means of a rotary looper the axis of which is placed forwardly of the path of the needle and which is provided with a loopspreading throat 46 between the proportion 51 and a tail 44. The thread-loop lying in the throat 46 of the looper is spread forwardly of the needle path so that when the needle descends at the side of the last-formed loop, the new loop is formed between the approaching looper point and the last loop and the looper, engaging it, carries it through the last-formed loop. In the continued rotation of the looper, the thread loop passes over the shoulder 45 and slips off the looper. It is, however, held in contact with the surface 51 by a light spring until there is no danger of its flying forward and fouling the looper point. The device is described in connexion with the button-attaching machine described in Specification 106,814.
Patent GB-1460798-A (GB)
Title: Sonic or ultrasonic apparatus
IPC: B23K20/10
Filed: 1974-04-16
Abstract: 1460798 Impelling tools; seaming non- metallic sheet material BRANSON ULTRASONICS CORP 16 April 1974 [23 April 1973] 16606/74 Headings B4C and B5K [Also in Divisions H4 and B3] Sonic or ultrasonic apparatus (Fig. 3), comprises an electroacoustic transducer device adapted to resonate and provide vibratory energy, the transducer device being supported by means (as described a pair of leaf springs 46, 48) adapted to yield in the direction parallel to the axis of propagation of the energy but to resist movement in the direction normal to the axis. The arrangement permits the transducer device to move into and from a working position by bending of the support. Apparatus for staking or plastics welding (Fig. 3) comprises piezoelectric discs 30 held in compression between a backload 32 and a front driver 34 by a central bolt 35. The front driver 34, is coupled to a coupling bar 36 by a threaded stud 40 and a horn 16 is coupled by a stud 42 to the coupling bar 36. In use the frontal surface 17 of the horn 16 is at an antinode of longitudinal vibration. Two sheet metal leaf springs 46, 48 couple the transducer device to a stationary column 12 and are clamped at antinodal regions of longitudinal vibration of the transducer device. They also act as a heat sink for the piezoelectric discs 30. A block 50 supports a housing 14 and is adjustable relative to the base 10 by a pair of screws 58 in a longitudinal slot in the column 12. The transducer and horn 16 are moved towards and away from a workpiece W by a pneumatically operated piston and cylinder assembly 62 supplied via flexible hoses 64, 66. The front of the piston rod is coupled to the front driver 34 by a link 68. The upper end of the pneumatic assembly is coupled to the housing 14 by a leaf spring 76. A platform 18 is rotatable relative to base 10 to position the workpiece W relative to the horn 16 and it can be held by one or more flanged bushings 84. A microswitch having an actuating button 94 is fitted to the pneumatic cylinder. When the cylinder is pressurized, the piston rod is driven downwardly to cause the horn 16 to make contact with the workpiece W. As the engagement pressure continues, the leaf spring 76 permits the cylinder to move upwards until button 94 strikes housing 14. In this manner the transducer is only energized when there is sufficient force between the frontal surface 17 and the workpiece W. The springs 46, 48 are in their flat non-deformed, non-stressed position when the frontal surface 17 engages workpiece W are are stressed when the transducer is retracted. A magnetostrictive device may replace the piezoelectric discs and the housing 14 may be replaced by a beam (102), Fig. 8 (not shown), which the button 94 of the microswitch strikes as the cylinder moves upwards. Within the base 10 is an oscillator providing electrical energy of frequency 1 kHz to 100 kHz.
Patent GB-549758-A (GB)
Title: Improvements in and relating to the production of electrodes for clamping quartz crystals or the like
IPC: H03H3/02
Filed: 1941-12-24
Abstract: 549,758. Making holders for piezo-electric crystals. HOULDING, N., and BAIN, D. A. Dec. 24, 1941, No. 16615. [Class 83 (ii)] [Also in Group XL] An electrode for clamping a quartz, tourmaline, or other piezo-electric crystal is made from triangular, rectangular, or polygonal sheet-metal blank 1 by indenting, cutting, or grinding an edge portion 3 of the blank surface between corner areas 2, which are to form the raised clamping areas, and then lowering the rest of the surface 4, excepting the areas 2, by grinding &c. Preferably between these two operations all the surface so far untreated is ground flat. For a rectangular blank two parallel edge portions 3 are treated. The portions 3 may be bevelled, as shown in Fig. 2, or completely cut away, Fig. 3. The depth of the final grinding determines the electrode gap and may be 5 - 10 microns. The edges 7 may be chamfered to inset the areas 2.
Patent GB-1393901-A (GB)
Title: Moisture sensors
IPC: G01N27/22
Filed: 1971-05-24
Abstract: 1393901 Moisture-sensitive transducers MOLECULAR CONTROLS Ltd 4 May 1972 [24 May 1971] 16643/71 Heading GIN A moisture-sensitive transducer comprises a short length of aluminium wire which for some two-thirds of its length is flattened as at 4 Fig. 7 polished and anodised by dipping in a solution of sodium or potassium hydroxide. A thin line of colloidal silver 10 is painted on the oxide layer and connected by a blob 9 of conductive cement to a lead wire 8. The round end of the wire is fixed in a metal tube 6. The unit constitutes a capacitor whose aluminium oxide dielectric absorbs moisture to vary the capacitance accordingly.
Patent GB-166916-A (GB)
IPC: F16D69/02
Abstract: 166,916. Frood, H. Jan. 16, 1920. Clutches, friction.-Fibrous compositions suitable for use as linings, plates and discs for friction clutches &c. consist of one or more layers of asbestos millboard coated or impregnated with a phenol-formaldehyde condensation product and consolidated by subjection to heat and pressure. The layers may be further secured together by plugs of wood or asbestos, which may also be treated with the condensation product. Casein, or volcanic or metamorphic rock such as pumice or dolerite, may be incorporated in the millboard. The material may be strengthened by insertions of wire netting or other metallic reinforcements. Reference has been directed by the Comptroller to Specifications 1922/08 and 28155/10, (both in Class 70, India-rubber &c.]. 121,301, 145,856. [Class 140, Waterproof &c. fabrics], and 153,796, [Class 70, India-rubber &c.].
Patent GB-680903-A (GB)
Title: Improvements in or relating to apparatus for the control of bell ringing
IPC: G10K1/34
Filed: 1949-06-23
Abstract: 680,903. Bell ringing. GILLET & JOHNSTON, Ltd., and LAMBERT, D. R. June 23, 1950 [June 23, 1949], No. 16700/49. Class 88 (i). A circuit for controlling a church bell ringing mechanism to ring either the Angelus, or de Profundis, a service call or a toll, comprises a number of cam operated contacts 5a-8a any one of which may be connected in series with the supply lines L1, L2 and the ringing mechanism 15 by means of a switch 1. The switch 1 is first held in the reset position in which contacts 1a are interconnected and relay 12 operates. Contacts 9a, 10a are closed and open respectively only in the normal positions of the cams 9, 10 so that motor 11 always returns the cam set to normal before it stops. The switch is set to connect the cam operated contacts that will provide impulses in accordance with the desired mode of ringing. Switch 2 is then pressed momentarily, relays 13, 14 operate and the motor 11 is driven for one revolution of the cams during which a complete mode such as the Angelus or de Profundis is rung. For toll and service calls, a tumbler switch 4 is closed instead of switch 2 and the motor continues to rotate and to ring the bell until the switch is opened. The bell is given a single blow when switch 3 is closed. The mechanism 15 may include an electro-magnet which delivers the bell a blow at the beginning of each impulse. If the bell is heavy and is driven by a motor, the motor tolls the bell for the duration of each impulse.
Patent GB-1222157-A (GB)
Title: Apparatus for labelling bottles or other articles
IPC: B65C9/16
Filed: 1968-04-08
Abstract: 1,222,157. Labelling apparatus. JAGENBERG-WERKE A.G. 8 April, 1968 [17 July, 1967], No. 16750/68. Addition to 1,120,903. Heading B8F. The label feed device described in the parent Specification is modified in that the adhesive transfer segments 2 are fastened to free ends of rocking levers 12 which are attached to spindles 13 pivotally mounted on the carrier 1 such that the segments 2 can be swung out of the rotary path of the carrier, be retarded relative to the latter to roll over the foremost label of a stack 4, and then swung back with acceleration relative to the carrier to deliver the label to a transfer drum 7 (Fig. 2, not shown). Movement of the segments 2 is effected by the engagement of toothed segments 14 on the spindles with other toothed segments on respective arms of bell-cranks 16, the other arms of which have rollers 17 which run over a stationary cam track 19. Each bell-crank is pivotally supported on a pin 18 on the carrier.
Patent GB-1048973-A (GB)
Title: Improvements in boron nitride and methods of production relating thereto
IPC: C01B21/064
Filed: 1963-04-29
Abstract: <PICT:1048973/C1/1> Boron nitride having a hardness equal to that of diamond is produced in the absence of a catalyst by preparing a specimen of hexagonal boron nitride having a graphite structure, subjecting the specimen for a period of at least one minute to simultaneous pressure and temperature conditions which lie in or above the region "Th" of the graph of Fig. 7, the pressure being applied statically and having a value of at least 100 kilobars, the temperature having a maximum value of 3327 DEG  C.; the specimen then being returned to ambient atmospheric conditions and boron nitride having the specified hardness recovered.  The product may be cubic boron nitride or alternatively it may have a wurtzite structure with a density of 3.43 gm./c.c., an optical index of refraction for red light of 2.22, and a hardness of 10 on Mohs scale, the lattice constants being a0 = 2.55 A, and c0 = 4.70 A at 25 DEG  C.  The temperature and pressure conditions of the process may lie in the region above the line M in Fig. 7, when the product is essentially cubic boron nitride.  A catalyst is defined in the Specification as meaning at least one of the following: an alkali metal, an alkaline earth metal, Sn, Pb, Sb, and nitrides thereof. The initial boron nitride may be doped with Si, Ge, Se or Be, when semi-conducting crystals are produced.
Patent GB-458094-A (GB)
Title: Improvements in or relating to the production of antioxidants and the treatment of rubber therewith
IPC: C08K5/3412
Filed: 1935-06-11
Abstract: The ageing of rubber is retarded by incorporation in the mix of a condensation product formed from an alkali metal derivative of a secondary aromatic amine and an alkylene dihalide.  The alkali metal derivative is formed by the direct action of the alkali metal on the amine to give a product of the formula <FORM:0458094/IV/1> where X represents an alkali metal, R represents an alkyl or an aryl radical, and R1 represents an aryl radical.  The final condensation products contain no halogen and are believed to have a ring structure similar to that of the indoles.  In examples: (1) diphenylamine is reacted with metallic sodium in the presence of a trace of red copper oxide, and the sodium diphenylamine produced is treated with an excess of ethylene dichloride.  The sodium chloride formed is removed by filtration and the condensation product isolated by the distillation of the excess of ethylene dichloride; (2) sodium phenyl-betanaphthylamine prepared in the manner described in example (1) is reacted with ethylene dichloride and the product isolated as before; (3) sodium di-beta-naphthylamine is prepared and reacted with ethylene dichloride as described in example (1); (4) sodium diphenylamine is prepared and reacted with propylene dichloride as described in example (1); (5) sodium butyl phenyl amine is prepared and reacted with ethylene dichloride as described in example (1). The anti-oxidants of the present invention may be used in combination with vulcanizing-agents and rubber compositions of the most varied nature and may be applied to rubber on the mill or to latex before coagulation.  The term "rubber" is used in the generic sense and includes guttapercha, balata, synthetic rubber, &c. Examples are given to show the efficiency of the anti-oxidants under varying conditions, and it is claimed that in addition to being efficient anti-oxidants they impart considerable flex-cracking resistance to the vulcanized rubber product.ALSO:The ageing of rubber is retarded by incorporation in the mix of a condensation product formed from an alkali metal derivative of a secondary aromatic amine and an alkylene dihalide.  The alkali metal derivative is formed by direct action of the alkali metal on the amine.  The final condensation products contain no halogen and are believed to have a ring structure similar to that of the indoles.  Numerous examples of the preparation and use in rubber stocks of the anti-oxidants are given.  It is stated that they may be used in combination with vulcanizing agents and rubber compositions of the most varied nature and that they may be applied to rubber on the mill or to latex before coagulation.  The term "rubber" is used in the generic sense and includes guttapercha, balata, synthetic rubber, &c.  Examples are given to show the efficiency of the antioxidants under varying conditions, and it is claimed that in addition to being efficient anti-oxidants they impart considerable flexcracking resistance to the vulcanized rubber product.
Patent GB-297784-A (GB)
Title: Improvements in the recovery of tin from cassiterite
IPC: C22B5/04
Filed: 1927-06-24
Abstract: 297,784. Ashcroft, E. A. June 24, 1927. Dry processes of extracting tin.-Tin is extracted from cassiterite by heating with reducing agents comprising powdered iron, aluminium, or magnesium, or powdered alloys of iron and tin, nickel and tin, or nickel, iron, and tin. When iron is used the temperature, is not allowed to exceed 900‹ C. to prevent sintering or slagging of the charge. The iron may be produced in situ by adding iron oxide and a carbonaceous material. Specifications 295,805, 302,851 and 309,307 are referred to.
Patent GB-1483674-A (GB)
Title: Bridge support apparatus
IPC: E01D19/00
Filed: 1975-04-23
Abstract: 1483674 Bridge support DR ING HCF PORSCHE AG 23 April 1975 [11 May 1974] 16903/75 Heading E1G A bridge support comprises a leg 10 with an intermediate member 2 connected to its free end a pair of foot plates 3, 4 pivoted to the memtier 2, and a linkage 5 connecting the plates 3, 4 together such that movement of one results in movement of the other. The plates are separately pivoted to the member 2 by spaced pivots 17, 18 and a link 5 is pivotally connected to one plate above its pivot and to the other below its pivot. A resilient band 8 holds the front plates 3, 4 open. Rollers 15 engage the underside of the bridge 16 when the leg is raised causing the front plates 3, 4 to close together. The leg 10 is joined to member 2 by a ball joint 9.