baber/WOPTO huggingface dataset:
Patent GB-911568-A (GB)
Title: Improved means for pouring molten metal from a ladle into moulds
IPC: C21C7/10
Filed: 1961-04-20
Abstract: 911,568. Casting-machines. ALLMANNA SVENSKA ELECTRISKA A.B. April 20, 1961 [April 28, 1960], No. 14252/61. Class 83 (1). A vacuum casting-machine comprises a bail 11, 12, rotatably supported on the vertically movable bottom 6 of the vacuum tank 1 and having means 22 for securing together the ladle 21 and a chill mould 4, means for rotating the bail for pouring from the ladle into the chill, and a base-plate 5 on which a series of chills may be mounted and which is rotatable with respect to the tank bottom 6 and the bail 11, 12, so that each chill in turn may be presented to the ladle. The ladle is filled by means of a gutter 3 extending into a melting furnace, the charge being weighed by known devices 25. The bail is tilted for pouring by a device external to the tank and which is connected to the bail through a clutch.
Patent GB-887257-A (GB)
Title: Treatment of finely divided solids with organo polysiloxanes
IPC: C08K9/06
Filed: 1960-04-25
Abstract: Finely divided solids, preferably having a particle size of less than 10 microns, are treated with an organopolysiloxane vapour in a fluidized bed at a temperature sufficient to prevent condensation of the vapour, and excess organopolysiloxane is then eliminated from the solid by passing an inert gas, for example nitrogen, through the solid such that the fluidized bed is maintained.  The two steps may be carried out either in the same zone, or the solids may be transferred from a first stage treating zone to a second stage treating zone.  Preferably organopolysiloxanes with a boiling point below 450 DEG C., specially below 250 DEG C., for example linear alkyl polysiloxanes of which the chain ends are blocked by trialkylsilyl groups, such as decamethyltetrasiloxane, or alkylalkenylpolysiloxanes, such as tetramethyl tetravinyl cyclotetrasiloxane, are employed. Hexamethyldisiloxane, octamethyltrisiloxane, and octamethylcyclotetrasiloxane, are also mentioned.  The organopolysiloxane vapours may be supplied from a boiler, and the excess vapour issuing from the treating step may be recycled.  The inert gas issuing from the second step may be freed of organopolysiloxanes, for example by condensation or absorption, and recycled.  The recovered organopolysiloxanes may be recycled to the treating step.  The treatment of silica, alumina, and silicates, is specifically referred to.  Specification 728,227 is referred to.
Patent GB-496216-A (GB)
Title: Improvements in or relating to magnetic compasses
IPC: G01C17/00
Filed: 1937-05-25
Abstract: 496,216. Magnetic compasses. KOLLSMAN, P. May 25, 1937, No. 14516. Convention date, May 25, 1936. [Class 97 (ii)] A magnetic compass comprises an elongated indicating element moved in azimuth by the directing magnets and also tiltable relatively to the casing, and a settable elongated reference member tiltable relatively to the casing and to the indicating element. The indicating element or needle G is attached to a float E pivoted about a point 32 and operated by a bar magnet 50. The needle G is read in conjunction with a settable reference member comprising two parallel arrows H, mounted on a member 61 connected to a central member 20 by gimbal joints 63, 65. The compass needle pivot 32 is carried on a post 30 slidable in the central member 20 and having a cushioning spring 27. The central member 20 is mounted in a liquid chamber B rotated as a whole to set the reference arrows H by a knob 70 connected by gearing to a pinion 78 fixed to the underside of the chamber. The setting is indicated by a scale 90 carried on the chamber and viewed through an aperture 92 in the rim of the casing M. The Specification as open to inspection under Sect. 91 comprises also reference to indicating instruments in general provided with the described indicating means. This subject-matter does not appear in the Specification as accepted.
Patent GB-164690-A (GB)
Title: Improvements in ampoules for delivering medicinal liquids in drops
IPC: B65D1/08
Filed: 1921-05-25
Abstract: 164,690. Billods, C. H. June 11, 1920, [Convention date]. Medicines, administering. -An ampoule or container for delivering a medicinal liquid in drops whilst maintaining the bulk of the liquid free from contamination comprises a bulb 1 partly filled with the liquid and formed with a capillary outlet tube 4. An enlargement of the tube 4 at its point of junction with the bulb 1 is filled with absorbent wadding or other sterilizable filtering-matter 3, and the tube 4 is formed into a spiral coil 5. The nozzle 6 of the tube 4 is sealed until the ampoule is first brought into use, and is covered by a cap 7 fitting over a joint 8 of plastic material.
Patent GB-422826-A (GB)
Title: Improvements in the manufacture and production of rubber-like products from olefine halides and polysulphides of the alkali or alkaline earth metals
IPC: C08G75/16
Filed: 1934-05-14
Abstract: Rubber-like products are obtained by reacting olefine halides with alkali or alkaline earth polysulphides with the addition of ammonia or organic bases or conversion products of the same with carbon disulphide.  Suitable bases are trimethylamine, diphenyl guanidine, cyclohexylamine, hexamethylene tetramine, pyridine and piperidine. In examples ethylene chloride is reacted with sodium tetrasulphide with the addition of dibutylamine, triethanolamine, and monoethanolamine, the proportions of added base being from 0,01 to 1 per cent of the ethylene chloride.
Patent GB-1322667-A (GB)
Title: Apparatus for moulding thermoplastics material
IPC: B29C49/48
Filed: 1971-05-12
Abstract: 1322667 Aligning mould sections HOLSTEIN & KAPPERT MASCHINENFABRIK PHOENIX GmbH 12 May 1971 [8 June 1970] 14546/71 Heading B5A Moulding apparatus having relatively displaceable mould halves also comprises a sealed envelope formed from a pair of plates joined around their edges located between at least one mould half and its carrier to absorb misalignment of the mating faces on closure and removable spacers between the envelope and the carrier. As shown, mould half 1, is screwed to mounting 2 having shanks 3, 4 with ribs 5, 6. A carrier 9 is detachably mounted on a pivot arm 10 and has ribs 7, 8 engaging those 5, 6 of mounting 2. The envelope 11 is located between mounting 2 and carrier 9 and comprises two flexible plates 13 hermetically sealed at edges 12 enclosing a cavity 14 for a pressure medium. Plates 13 are sealed from bores 15, 16 by thrust plates 17, 18. Interchangeable spacers 19 are located between ribs 5, 6 and ribs 7, 8.
Patent GB-765482-A (GB)
Title: Improvements relating to refractory materials
IPC: C04B7/32
Filed: 1954-05-18
Abstract: Refractory material, usable without burning and mouldable after adding water, comprises 75-95 refractory base material and 5-25 unfused sintered calcium meta-aluminate cement.  The cement contains 30-37 CaO to 70-63 Al2.O3.  Specified base materials are chrome ore, calcined clay, diaspore and cyanite.
Patent GB-822919-A (GB)
Title: A new or improved conveyor belt weighing machine
Inventor: HAMERSKI EMIL
IPC: G01G11/06
Filed: 1956-05-10
Abstract: 822,919. Fluid-pressure servomotor control systems. ZEMENTANLAGENBAU DESSAU VEB, [formerly MASCHINENFABRIK POLYSIUS VEB.]. May 10, 1956, No. 14585/56. Class 135. [Also in Group XVIII] The total weight of material passing over a conveyer belt 2 is measured by a recorder 3 operated through gearing 14 by a wheel 12 which is frictionally driven by a disc 13, fast with the conveyer driving pulley, and is movable radially of the disc by a spring-loaded hydraulic piston and cylinder unit 10, 11 the pressure in which is proportional to the weight of the load on the belt. The belt is carried by a bridge 4 which is pivoted about the axis 5 of the driving pulley, and bears on a valve 7 in a cylinder 8 located between a pump 17 and cylinder 11. Piston 10 is a loose fit in its cylinder and the fluid is returned therefrom to the circulating system by a connection (not shown). The average hourly rate of flow of material is indicated by a gauge 18. The speed of the conveyer or the means supplying material thereto can be regulated by the pressure of the hydraulic system to produce a constant weight flow of material.
Patent GB-560849-A (GB)
Title: Improvements in and relating to the construction of tunnels and the like
IPC: E21D11/15
Filed: 1942-10-19
Abstract: 560,849. Conduits, sewers &c. WRIGHT, W. Oct. 19, 1942, No. 14586. [Class 33] [Also in Group XXI] In the construction. of tunnels, underground stations, subways, conduits, sewers and like arched or tubular structures. by erecting successive rings &c. of hollow segments of channel or V -section secured end to end, the interior of the segments being substantially filled with preformed blocks of concrete or the like which are then grouted in position, the blocks are supported during grouting on strips which extend along the joint between successive rings &c. and are temporarily secured by members that extend therefrom into engagement with the bolts &c. which connect adjacent segments. In Figs. 1 and 2, the segments 10 have side flanges 10b formed to'leave gaps 13 into which thin hooks 16 are placed to engage the connecting bolts 12, the shanks'of the hooks passing through strips 17 of wood &c. and bearing plates &c. secured to the latter; ecitters. 18, nuts or the like holding the parts ; the blocks' 15 are supported on the strips 17 and are pressed towards one end of each segment by bolts 11 and plates 18a. After grouting, the hooks 16 are removed and the gaps 13 filled with cement &c. if desired. In Fig. 4, the strips 17 are supported by eyemembers 116 extending inside the segments to the bolts ; after removing the strips, the projecting ends of the eye-members are cut away or knocked up.
Patent GB-496550-A (GB)
Title: Improvements in or relating to liquid pressure remote control systems
IPC: F15B11/22
Filed: 1937-05-26
Abstract: 496,550. Hydraulic transmission of power. AUTOMOTIVE PRODUCTS CO., Ltd., and BEESTON, J. P. May 26, 1937, No. 14619. [Class 69 (ii)] [Also in Group XXVI] In a liquid-pressure remote-control system having a source of pressure-liquid feeding in common through branch pipe lines a plurality of slave units, and a valve device to maintain at a substantially constant value the ratio of the volumetric rates of flow in the branches, the branches include Venturi-shaped passages having constricted throat portions and the valve device is actuated by variations in the difference between the reduced pressures at said throat portions resulting from any variations of the ratio of the volumetric rates of flow in the branches. A liquid-pressure remote-control system comprises a selector valve 11, Fig. 1, connected on the one hand to a pump 10 and reservoir 22 and on the other by lines 13, 14 to a regulating valve 15; two double-acting jacks 16, 17 are connected by pipes 18, 19 and 20, 21 to the regulator 15 which comprises two Venturitubes 35, 39 controlling a valve 28a and two Venturi-tubes 35a, 39a controlling a valve 28 ; the valves 28, 28a are provided with byepass valves 25, 25a. When pressure liquid is supplied through line 14, valve 25a is opened by the pressure acting on it, and valve 25 is closed by the pressure acting through connection 46a. The valve 28a being byepassed is inoperative to control the supply from 14 which passes through the Venturi-tubes 35a, 39a to the pipe lines 18, 20 supplying one end of the jacks 16, 17 ; the pressure at the throats of said Venturitubes acts through ducts 43a, 44a on the opposite ends 29, 30 of the valve 28 which controls the exhaust from the jacks through 19, 21, the Venturi-tubes 35, 39 and line 13. In a modification, Fig. 6, only two Venturi-tubes 35, 39 and a single regulating valve 28a are provided. When pressure liquid is supplied to line 14 it passes to the double-acting jacks 16, 17 through the Venturi-tubes and connections 18, 20; the valve 28a controls the exhaust from the jacks, which passes through 19, 21, 56, 57, 52 to line 13. When pressure liquid is supplied to line 13 the supply to the jacks through said passages 56, 19 and 57, 21 respectively is controlled by the valve 28a in accordance with the flow through the Venturi-tubes 35, 39 of the liquid exhausting from the jacks through the connections 18, 20 and said Venturitubes to the line 14. A restriction 68 is placed in the return line from the selector valve to increase the pressure in the system.
Patent GB-528888-A (GB)
Title: Improvements in or relating to work rotating devices for grinding machines and other machine tools
IPC: B24B3/04
Filed: 1939-05-16
Abstract: 528,888. Grinding &c. machines. DECKEL, F., (trading as DECKEL PRAZISIONS-MACHANIK & MASCHINENBAU, F.). May 16, 1939, No. 14630. Convention date, June 10, 1938. Addition to 504,245. [Class 60] The grinding &c. machine described in the parent Specification, has the holder for the band &c. 26 on which the disc wheel 25 rolls arranged so as to be adjustable on the machine frame parallel to the axial movement of the work-holder. The carriage 3, 4 slidable on the guide 1 on the frame, has mounted thereon a tool 7, shown as a milling-cutter, of which the edge 75 is to be ground, and driven as described in the parent Specification by the disc wheel 25 and the band 26. The holder 13 for the band is adjustable transversely, to allow of fitting disc wheels of different sizes, on a part 70, to which it is secured by a screw 71, the part 70 being in the form of a carriage displaceable parallel to the movement of the carriage 3 on a guide 72 on the frame 2 by means of a screw 73. In operation, the tool 7 can be adjusted rotationally by adjustment of the screw 73, whereby the band 26 rolls on the disc wheel 25, and by locking the wheel 25 against rotation, adjustment of the screw causes longitudinal movement of the tool 7 without rotation.
Patent GB-854993-A (GB)
Title: Production of organic acid esters of cellulose
IPC: C08B3/00
Filed: 1957-05-08
Abstract: In a continuous process for the manufacture of an organic acid ester of cellulose by the action of an organic acid anhydride on cellulose in the presence of enough of a solvent to dissolve the cellulose ester as it is formed, esterification takes place during periods of residence in a series of separate reaction zones through which the reacting materials are successively passed and the materials are thoroughly mixed while in each reaction zone so that the composition of the mixture leaving the zone is substantially the same as that of the mixture throughout the zone and is kept substantially constant by the entering materials.  The solvent for the cellulose ester may be a substantially water-immiscible organic liquid, e.g. nitromethane, m-cresol, cyclopentanone, pyrrole, furfural, methylene chloride, tetrachlorethane, trichlorethane, chloroform and trichloroethanol. If desired a mixture of solvents may be used.  As an esterification catalyst perchloric acid, sulphuric acid, anhydrous ferric chloride or a sulphonic acid may be used.  Preferably the temperature in each separate reaction zone is maintained constant. The volumetric rates at which the mixture is introduced into and withdrawn from any one reaction zone should be equal.  Apparatus which may be used in carrying out the process of the invention comprises a number of separate reactors each equipped with a stirrer or other agitating means.  Pumps may be provided for transporting the reacting mixture from one reactor to the next without allowing any of the mixture to return to a preceding reactor, or there may be used a cascade type of apparatus in which the mixture overflows continuously from each reactor to the succeeding one.  Before being esterified, the cellulose may be given an activating pretreatment, which may comprise adding to the cellulose a small quantity of a lower aliphatic acid, e.g. formic, acetic, propionic or butyric acids or a mixture of two or more of these acids.  Part or all of an esterification catalyst may also be present during the pretreatment.  The pretreatment may be carried out in a single stage or in two or more stages.  The reaction mixture, having passed throughout all the reaction zones may be passed through an apparatus designed to hinder the movement of any undissolved material while allowing the solution to pass relatively freely.  In an example cellulose acetate is made by the action of acetic anhydride on cellulose in the presence of methylene chloride as solvent.  Specifications 627,861, 657,827, 681,865, 700,721, 779,802 and 789,210 are referred to.
Patent GB-720047-A (GB)
Title: Improvements in or relating to nesting boxes or the like
IPC: A01K31/16
Filed: 1952-06-11
Abstract: 720,047. Poultry houses. BEBBINGTON, P. July 2, 1953. [June 11, 1952] No. 14662/52. Class 5 (2). A nesting box provided with a sloping floor 13 is fitted with a horizontally mounted rotatable member 18 to prevent hens pecking at eggs which roll into a compartment 14. The member 18 is rotated by an egg rolling down the floor and allows the egg to pass into the compartment 14. A hinged wooden floor 16 is provided with litter and is secured into position against the underside of the floor 13 which is made of wire mesh.
Patent GB-457739-A (GB)
Title: Improvements in elastic sanitary telephone protectors
IPC: H04R1/12
Filed: 1936-05-26
Abstract: 457,739. Sanitary and hygienic devices. KALENOFF, G. B., 1428, 56th Street, New York, U.S.A. May 26, 1936, No. 14825. [Class 40 (iv)] A protector for a telephone instrument, shown as applied to a mouth piece, comprises a tubu lar body of flexible, resilient material which resiliently grips the mouth. piece and covers its inner and outer surfaces and its outer edge. The protector 18 is of doubleconical form and has at its ends beads 19a, 20a which engage the outer and inner surfaces respectively of the mouthpiece 17.
Patent GB-160698-A (GB)
Title: Improvements in liquid fuel furnaces
IPC: F23C1/02
Filed: 1920-06-03
Abstract: 160,698. McKean, J. G., and Jones, R. F. June 3, 1920. Liquid-fuel furnaces; furnace fronts.-In a naturaldraught furnace front, adaptable for burning solid or liquid fuel, wherein ribs or fins are provided on the inner plate tangential to the axis of the fuel-atomizer, the ribs are arranged forwardly of the atomizer and lead to ports or openings in the firehole opening. The inner plate c is formed integrally with the firehole opening and with tangential ribs f which lead to ports d in the opening, the fuel-atomizer g being retracted from the plate c. A regulable air supply is admitted to the hollow front and is heated by the plate c and issues in tangential streams into the firehole opening. When burning liquid fuel, an air-director k as described in Specincation 159,080 is attached to the furnace front and the fire-bars b are covered with broken fire-brick. Additional air may be admitted by the ash-pit damper l. When reverting to solid fuel, the air-director k is replaced by a fire-door.
Patent GB-698489-A (GB)
Title: Apparatus for producing frequency modulation of electro-mechanical oscillators
IPC: H03C3/10
Filed: 1950-06-16
Abstract: 698,489. Valve generating circuits; frequency modulation. ELECTRONIC RESEARCH & MANUFACTURING CORPORATION. June 16, 1950 [March 18, 1950], No. 15132/50. Classes 40 (v) and 40 (vi). In an oscillator in which the crystal 21, Fig. 5, is shunted by an inductive reactance L1, the latter is chosen of such a value as would resonate with the capacities C1 associated with the wiring, holder, &c. to form a tuned circuit which is inductive below the natural frequency of the crystal to resonate with the capacitive reactance exhibited by the crystal at that frequency. The natural frequency may be the fundamental in a harmonic. The value of the inductor or a capacitor shunting the crystal may be varied to provide frequency modula. tion. This may be achieved by the use of a thermionic reactance, Fig. 15 (not shown), the valve operating at a low screen potential to give a restricted variation in available reactance. Preferably the valve is coupled to the oscillator over a capacitor having the same value as the thermionic reactance in the absence of a modulating signal. The anode circuit of the oscillator may include a series temperature-sensitive capacitor to render the circuit free from thermal drift, Fig. 19 (not shown). The frequency modulation may be achieved by the use of a crystal 34, Fig. 20, in which the upper plate 46 may be moved to and from the crystal by a coil 38 moving in a magnetic field. Specification 682,251 is referred to.
Patent GB-1205737-A (GB)
Title: Improvements in or relating to door handle assemblies
IPC: E05B3/04
Filed: 1969-03-24
Abstract: 1,205,737. Securing door handles on spindles. WESTFALISCHES METALLWERK FRANZ SCHNIEDER K.G. 24 March, 1969 [23 March, 1968], No. 15204/69. Heading F2U. An arrangement permitting fine axial positioning of a door handle 2 on a square spindle 3 provided with transverse teeth 9 comprises a U-shaped member 5 held in position by a grubscrew 6 in the handle and formed with spring tongues 13 whose tips are unequally spaced so that over each tooth pitch the tips can successively engage the spindle teeth to provide a number of independent axial settings of the handle. As described, the teeth 9 and tongues 13 are provided in two adjacent sides of spindle 3 and member 5, respectively, the tongues being in two groups of three staggered longitudinally, Fig. 2 (not shown), to provide six independent settings per tooth. The tongues may be of equal or unequal lengths.
Patent GB-708278-A (GB)
Title: Improvements relating to rubberised yarns and products therefrom
IPC: C08J5/06
Filed: 1951-06-27
Abstract: 708,278. Yarns. LEWIS & TYLOR, Ltd., and LAWSON, N. May 13, 1952 [June 27. 1951], No. 15286/51. Class 120(3) [Also in Group XXIV] Yarn impregnated or coated with, natural or synthetic rubber latex is coated with wax such as a hydrocarbon, e.g.' paraffin wax, in order to eliminate tackiness without prejudicing the softening and conversion of contiguous yarns, as in a woven, braided or other fabric, into a continuous mass by vulcanization of the rubber.
Patent GB-988935-A (GB)
Title: Method for improving the durability of refractory furnace linings or the like
Inventor: LUNGEN HANS JOACHIM
IPC: F27D1/16
Filed: 1961-04-27
Abstract: A method of increasing the life of refractory linings in furnaces containing molten ferrous metals and slag comprises adding to the charge, before, during, or after slag formation, a mixture of two or more of CaCO3, SiO2, and Al2O3.  The materials may be used in the proportions 0-65% CaCO3, 30-90% SiO2, and 3-18% Al2O3 and may be added in the form of pressed blocks, powder, or in bags or other containers.  Part of the CaCO3 may be replaced by other Ca compounds, e.g. CaF2.
Patent GB-843317-A (GB)
Title: Improvements in or relating to fluid flow valve mechanisms
IPC: F16K49/00
Filed: 1958-05-14
Abstract: 843,317. Valves. WESTINGHOUSE ELECTRIC CORPORATION. May 14,1958 [May 22, 1957], No. 15455/58. Class 135. A leak-proof valve comprises a hollow valve member 17 having a valve head 18 which when the valve member and valve body 10 are at the same temperature has a slight interference fit with a port 15 which it controls. To close the valve, coolant fluid is first circulated through the valve member to reduce its size to approximately that of the port 15. Pressure liquid is then admitted to a chamber 28 beneath a piston 26. When closed the flow of coolant fluid is stopped whence the valve member expands to its original size to firmly seal the port. To open the valve coolant fluid is again circulated through the valve member whence any welding between the valve member and its port, which may be the case when liquid sodium is the controlled fluid, is broken, and the valve may then be opened by admitting pressure liquid above the piston.