baber/WOPTO huggingface dataset:
Patent GB-737496-A (GB)
Title: Improved means for incorporating liquids in flour, mill stocks or other powdered foodstuffs
Inventor: LOCKWOOD JOSEPH FLAWITH
IPC: B01F15/02
Filed: 1953-03-19
Abstract: 737,496. Mixing-appliances. SIMON, Ltd., H. Jan. 25, 1954 [March 19, 1953], No. 7586/53. Class 86. [Also in Group I] Apparatus for mixing atomized liquid, e.g. water or molasses, with flour &c. comprises a casing substantially in the form of a surface of revolution into which flour supplied through a pipe a and air supplied through a pipe b are fed tangentially and liquid from an atomizer f is fed axially. The casing may have a cylindrical part c and a conical part d and may be connected by a pipe e to a cyclone separator and suction. Air may be admitted into the casing together with or separately from the flour.
Patent GB-805002-A (GB)
Title: Improvements in or relating to electric motor control systems
IPC: B66B1/06
Filed: 1954-03-16
Abstract: 805,002. Automatic speed control systems. WEST & CO. Ltd., A., and STACEY, J. R. May 31, 1955 [March 16, 1954], No. 7603/54. Class 38 (4). [Also in Group XXXVII] A slip-ring induction motor M is controlled by means of a brake having winding B2 the degree of energization of which is increased to provide a heavier braking torque as the speed of the motor increases. The winding B2 is supplied through rectifier T3 in series with the controlled A.C. winding of a saturable reactor S, the energization of the controlling D.C. winding of the reactor varying in response to changes in speed of the motor. The brake is effective on the first hoisting notch and on the first and second lowering notches of the master controller DC, the whole of the rotor resistance R being maintained in circuit whilst the controller is in these positions. The controlling winding S2 of the reactor is connected between tappings in resistors R1, R2, which are respectively energized in accordance with the stator voltage and the rotor voltage of the induction motor, the arrangement being such that, when the motor is at rest, the winding S2 is de-energized and minimum braking torque is obtained. As the motor speed increases, the potential across resistor R2 falls so increasing the current passing through windings S2 and B2. On the first lowering notch of the controller a greater portion of the resistor R2 is short-circuited than on the second lowering notch and the first hoisting notch. The braking torque obtainable on the first lowering notch is therefore greater than on the other notches. Another brake, having winding B1 connected across two stator terminals of the motor, is provided for braking the motor in the " off " position of the controller. Alternatively the windings B1, B2 may be incorporated in a single brake. Reference has been directed by the Comptroller to Specifications 710,370 and 744,160.
Patent GB-564404-A (GB)
Title: Improvements in or relating to crushing machines
IPC: B02C1/14
Filed: 1943-05-13
Abstract: 564,404. Crushing-machines. ONIONS, J. H. May 13, 1943, No. 7610. [Class 59] A crushing-machine, more particularly for diamonds, comprises a reciprocating striker, an anvil arranged to be vibrated or oscillated, and a stop for the striker, the relative positions of the anvil and stop being adjustable so as to limit the movement of the striker towards the anvil to produce particles of a predetermined size which are delivered between a guard that surrounds the striker and is spaced therefrom to permit the passage only of particles not greater than the desired size. The striker 4 is operated by a cable 12 from a pulley 13 rotated intermittently and then released by a constantly rotating cage 19. The striker is provided with a collar 5 which engages a shoulder 8 to limit its downward movement towards the anvil 26 which is adjustable in a collar 28 oscillated by a connection 25 with a lever 23 operated from the cage. The diamonds are fed from a hopper 31 past a gate 33 operated from the striker and the bracket 3, which may be vertically adjustable, is fitted with an adjustable guard 36 between which and the anvil the broken particles escape into a shoot 35.
Patent GB-566957-A (GB)
Title: Improvement in fuel injection apparatus
IPC: F02M59/46
Filed: 1943-05-13
Abstract: 566,957. Fuel - injection pumps. BENDIX AVIATION CORPORATION. May 13, 1943, No. 7662. Convention date, April 1, 1942. [Class 102 (i)] In a fuel-injection pump in which the plunger 14 controls the admission of fuel to the pump cylinder 11 and determines the beginning and end of the delivery period, after completion of the delivery period and closure of the delivery valve 22, the delivery, line 29 is connected through a passage 34 in the valve to the supply line 18. The plunger 14 may be actuated and controlled as described in Specification 535,301. The stem of the valve 22 engages a seat 24, a second seal being obtained by the engagement of a retraction collar 25 on the valve with the bore of a valve adapter 12. The valve has axial flutes 26 and is controlled by a spring 27. Internally of the valve, the passage 34 leads to a recess 35 containing a check valve 36, and to radial passages 38 leading to an annular groove 39 in the adapter 12. This groove is connected by passages 42, an annular groove 41, and an axially extending passage 43 to a relief port 44 opposite the byepass port'19, the ports 19, 44 being controlled by helices 30, 33 on the plunger 14. In a modification, the flutes 26 and check valve 36 are omitted, and delivery is effected through the valve passage 34.
Patent GB-1451956-A (GB)
Title: Travelling wave tubes
IPC: H01J23/087
Filed: 1973-02-16
Abstract: 1451956 Travelling-wave tubes ENGLISH ELECTRIC VALVE CO Ltd 2 Jan 1974 [16 Feb 1973] 7682/73 Heading H1D The fundamental coupled-cavity slow-wave structure of a travelling-wave tube - e.g. a 'centipede' or, as shown, a 'cloverleaf' structure - formed by a stack of alternate slotted plates Y 1 and apertured plates X1, successive X plates being angularly staggeied through 30 degrees, incorporates a periodic permanent magnet focusing system having a polepiece at each nth cavity (where n is greater than unity) provided by forming the appropriate apertured plate and the sandwiching pair of slotted plates, MX and MY, respectively, in, Fig. 3, of soft iron, the apertured plates MX being of enlarged outer density and receiving therebetween axially magnetized ring magnets 3. Fig. 3 shows the case of a polepiece at each fourth cavity. In modified arrangements, the externally projecting periphery of the magnetic apertured plates MX may be of reduced thickness to permit the use of longer ring magnets Fig. 5 (not shown); and the internally projecting portions P, Fig. 2, of the plates MX may be of copper brazed to a common symmetric ferromagnetic annulus Figs. 6 and 7 (not shown). Axial tapering of the structure, by variation of the cell length, or of the aperture or slot dimensions, is referred to.
Patent GB-1066061-A (GB)
Title: Method of manufacturing polyester fibres having cavities
IPC: D01F6/62
Filed: 1964-02-25
Abstract: A mixture of a polyester or a copolymer containing a major proportion of polyester (the A-material) and at least 20% of a B-material consisting of a polymer of a cyclic vinyl compound or a copolymer containing at least 80% thereof is spun into filaments from which the B-material is then removed by solvent extraction to give porous polyester filaments.  The polymer mixture may be made by mixing and melting the A- and B-materials or by polymerizing monomers of one or both the materials in situ.  Specified A-materials are copolymers of dibasic acids or esters with a glycol, or copolycondensates containing, in addition to ester linkages, amide, urethane, ether or urea linkages.  Exemplified B-material is polystyrene and specified B-materials are polymers of styrene, vinyl toluene, a -methyl styrene, dimethyl styrene, maleic anhydride, a -methyl-p-methyl styrene or copolymers of the above with methyl methacrylate, acrylonitrile, vinyl chloride, vinyl acetate or butadiene. Specified solvents for the B-material are benzene, toluene, xylene, ethylene dichloride, trichloro-ethylene, chloroform, tetrahydrofuran, dioxane and mixtures of the above with alcohols or ketones.  In one example, a mixture of dimethyl terephthalate, ethylene glycol and zinc acetate and antimony oxide as catalysts is maintained at 190 DEG  C. under nitrogen for 6 hours, then at 260-280 DEG  C. for 30 minutes. Polystyrene, 35% by weight of dimethyl terephthalate, is then added and heating continued in vacuo for 7 hours to yield a mixture of polystyrene and polyethylene terephthalate. Filaments spun therefrom are extracted by toluene at 40 DEG  C. for 1 hour to remove polystyrene, and the resulting microporous filaments are stretched. In other examples, filaments spun from melts comprising polyethylene terephthalate plus 5-60% polystyrene are extracted by benzene or trichloroethylene.ALSO:Porous filaments of polyethylene terephthalate are impregnated with (1) a 10% solution of uramin T 101 containing 0.2% diammonium hydrogen phosphate followed by heating at 140 DEG C or (2) a water-soluble emulsion containing 20% of polyvinyle chloride, the filaments then being heated and stretched.  The crease resistance and wash and wear resistances are thereby improved.
Patent GB-1496961-A (GB)
Title: Signal amplification by illumination of a partially developed electrostatic latent image
IPC: G03G15/22
Filed: 1975-02-25
Abstract: 1496961 Electro-photography XEROX CORP 25 Feb 1975 [4 March 1974] 7814/75 Heading G2H An imaging process comprises increasing the potential difference between two adjacent electrostatic charge patterns of different charge density on a photo-conductive surface by lightly developing with toner particles and exposing to light through the thus formed mask of toner particles, and then fully developing the resultant increased contrast latent image. The invention is particularly applicable to x-ray photography where, in order to keep the exposure to a minimum, the exposure is insufficient to reduce the charge potential on the non-shadow parts of the photo-conductive surface to zero but reduces it only to an intermediate level, e.g. half the shadow area charge potential. An apparatus for carrying out the process, which utilizes a powder cloud developing device, is described and illustrated.
Patent GB-624138-A (GB)
Title: Improvements in or relating to the mounting of storage compartments in articles of furniture
IPC: A47B67/00
Filed: 1947-03-21
Abstract: 624,138. Cabinets; shelves. DIETRICH, F. March 21, 1947, No. 7867. Convention date, Nov. 25, 1946. [Class 52 (i)] Storage compartments 9, 10 are carried by hinged side walls 5, 6 of a cabinet structure and are mounted alternately on the right and left hand walls to interdigitate when in the closed position. Shelves pivotally adjustable about their longitudinal axes may be provided in the back of the structure.
Patent GB-540894-A (GB)
Title: Release valve or sluice for canals and the like
IPC: E02B13/02
Filed: 1940-05-02
Abstract: 540,894. Sluice gates. OWEN, C. G. May 2, 1940, No. 7870. [Class 68 (ii)] The level of water in a canal is kept from rising to excess by the automatic operation of a sluice gate 10' by a cable connected with a container 16 located in a chamber alongside the canal and guided in its downward movement by a plunger 22 and cylinder 24. The container is formed with holes so that, when the overflow through the conduit seases or nearly ceases, the container empties and the weight of the gate causes it to close.
Patent GB-300070-A (GB)
Title: A new or improved method of decorating glass
IPC: C03C17/32
Filed: 1928-03-15
Abstract: 300,070. Fell, J. T., and Fell, J. March 15, 1928. Coating-processes. - Glass is decorated by placing it in contact with sprinkled floating cellulose colours (cellulose varnish and pigments) whereby the underside of the glass is patterned. The underside of the glass may be covered in parts with paper before contacting with the colours, the paper being afterwards removed, and the plain glass thus revealed decorated by further contacting with the floating colours or by spraying or otherwise applying various colours. Tinsel, or other decorative material, or further colours, may be placed on or between the cellulose colours if desired. The colours &c. mav he backed with a coating of indiarubber solution, wax paper, varnish &c. reference has been directed by the Comptroller to Specifications 12901/84, [Class 93, Ornamenting], and 262,601.
Patent GB-1104905-A (GB)
Title: Improvements in or relating to turboecharger control systems for internal combustionengines
Inventor: UPDIKE STANLEY H
IPC: F02B37/18
Filed: 1966-02-23
Abstract: 1,104,905. Supercharging I. C. engines. TRW Inc. Feb. 23, 1966, No.7991/66. Heading F1B. An exhaust gas driven turbine of a turbocharger, Fig. 1 (not shown) is by-passed by a valve 21 which is moved to its open (full line) position at full throttle or high intake manifold pressure conditions. A line 26 leading from a chamber 24 communicates with the carburetter downstream of the throttle valve but upstream of the supercharging compressor so that when the throttle is closed or partly open, the suction acting on a diaphragm 25 maintains the valve 21 open. When the throttle is opened fully, the suction in chamber 24 is insufficient to prevent a spring 27, which is stronger than an opposing spring 31, from closing the valve 21 and bringing the supercharger into action. Should the pressure in the intake manifold, which communicates with a chamber 28, exceed a given value, a diaphragm 29 moves to the right and coacts with a collar 34 to open the valve 21. The line 26 may communicate with the carburetter at a point which is upstream of the closed throttle valve but which is exposed to the pressure downstream of the throttle when the latter is opened. In this case the supercharger will operate during engine idling.
Patent GB-717148-A (GB)
Title: Diaphragms for loud speakers
IPC: H01F38/08
Filed: 1952-03-28
Abstract: Cellular moulded loudspeaker diaphragms, which are 0.8 to 3 mm thick may be made from synthetic resin lacquers foamed by the addition of inflating agents.  The cells in the foam have a diameter of the order of 1 mm. and the specific gravity of the diaphragm lies between 0.1 and 0.3.  Synthetic resins specified are phenol-formaldehyde and urea-formaldehyde condensates, silicones, polymethacrylates, and polystyrene.  The inflation is limited by moulds permeable to steam. Hardening agents may be added.  Very small fine threads, fibres or flakes of various materials, e.g. mica, anthracite, alummium-oxide, boron carbide, and light metals, may be added.  The diaphragm may be made even thinner if it has a light supporting framework of net, fabric, or perforated material of not more more than 10 per cent. of the weight of the diaphragm.  Thin strong skins, such as paper, are preferably applied to both sides of the diaphragm.  These skins may be of foil or sprayed metal and are sufficiently foam-and liquid-proof to prevent baking to the mould.  Further stiffening may be obtained by mica scales cemented by lacquer to the surface or embedded therein.  Foamed lacquer may be spread, sprayed, or rolled uniformly on to an impermeable foam-proof support.  In all cases the lacquer is heated quickly and cooled quickly.  Instead of inflating agents, volatile or water soluble substances may be used and after removal of these the walls are reinforced by saturation with dilute lacquers and subsequent drying.
Patent GB-322706-A (GB)
Title: Improvements in or relating to typographic casting machines
IPC: B41B25/00
Filed: 1929-03-12
Abstract: 322,706. Booth, J. B., S., and Lanston Monotype Corporation, Ltd. March 12, 1929. Strip-perforating machines ; justifying type.- Relates to means for enabling the justification fraction for a line to be applied to the character types, in machines such as that described in Specification 17199/08, by adding the transfer component of the space signal to the character signals, and disconnecting the transfer punch from the line-measuring mechanism. The rocking lever that connects the transfer punch to its units-stop is made in two parts, which are disconnected when the justification fraction is to be added to type bodies, and the part of the lever that is coupled with the punch is simultaneously connected with an operating-device, which is actuated at every type signal. The two parts B, B<1>, Fig. 5, of the rocking lever are normally coupled by a pin C, carried by a clock C', Fig. 2, which can slide on a frame C<2> attached to the part B<1> of the lever. The block C<1> is shifted, to connect or disconnect the two parts of the lever, by a pin E<3> on a hand-lever E. When the parts B, B<1> are disconnected, the block C<1> is simultaneously coupled with a lever D and moves it into the path of a bar A, which operates at each type signal, so that the transfer punch is operated therewith. The space-counting device is operated with each type signal by means of an arm B<2> connected with the part B' of the rocking lever.
Patent GB-577476-A (GB)
Title: Improvements in or relating to connectors for electric irons and other appliances
IPC: H01R13/506
Filed: 1944-05-01
Abstract: 577,476. Two-part couplings. SULLAM, S. D. May 1, 1944, No. 8116. [Class 38 (i)] A connector for electric irons and similar appliances comprises a deep bottom portion C containing the sockets B and a shallow cover plate A arranged to slide in tongue and groove connections over the bottom portion. The cover plate is held in position by a projecting ridge D at one side to engage in a slot E in the bottom portion, the opposite arrangement being provided on the other side of the cover and the bottom portion respectively. A portion F<1> of the near wall F of the bottom portion may be adapted to hold a spring for supporting a supply cable, or the cover plate and the bottom portion may grip the cable without a support. A clip H may be provided to lock the cover plate and the bottom portion together. According to the Provisional Specification the cover plate may be in two pieces.
Patent GB-591916-A (GB)
Title: Improvements relating to machines for grinding toothed gear wheels and the like
IPC: B23F5/04
Filed: 1945-03-30
Abstract: 591,916. Gear-cutting. WICKMAN, A. C. March 30, 1945, No. 8116. [Class 83 (iii)] In a machine for grinding helical toothed gears, helical splined shafts and similar work by means of a helically ribbed grinding-wheel b, the work d is mounted on a spindle c inclined to the cutter spindle a so that the tooth surfaces being ground are in alignment with the operative surfaces of the cutter and is moved parallel to such surfaces whilst being rotated in synchronism with the cutter through toothed gearing. The cutter is mounted on a transversely adjustable slide w and is driven directly or through a pulley h, the spindle a being connected to the work spindle c through gearing i, m, n, p, r, t and v. Spindle c is carried by a member e rotatably adjustable on a slide f which is fed during grinding parallel with the tooth faces being operated upon so as to operate on the whole length of the teeth and also to distribute wear on the cutter. The necessity for compensatory rotation of the tool and work is thus avoided.
Patent GB-244971-A (GB)
Title: Improvements in or relating to the manufacture of fuel briquettes
IPC: C10L5/14
Filed: 1925-03-26
Abstract: 244,971. Welton, P. E. March 26, 1925. Stream-cutting machines; extrusion machines: moulding fuel. - Fuel briquettes are made by forming by extrusion a column of material such as a hollow porous cylinder which is broken into briquette lengths and baked. Coal culm is first dried by hot gases from a furnace 34 when being delivered to a pit 35 by a conveyer 32, and is then screened and discharged into a storage hopper 55, from which the graded material passes into a mixing machine 60 together with binding and waterproofing agents from a hopper 54. The mixed material is fed by a belt 66 to a continuously operating multiple extruding machine 65 having dies 120 and extruding screws 121. The extruded columns of material are broken off into briquette lengths by a bar 122, suspended on end members 115 actuated by cams 123, shown as mounted on a shaft 124 which carries a number of agitating blades 125 in the hopper 70 of the machine. The briquettes are delivered by a tray or bucket conveyer through a baking oven 80 having a partition providing a relatively low temperature zone in which the briquettes are dried before passing to the major portion of the oven heated to a temperature Sufficient to melt the waterproofing agent. The treated briquettes are discharged upon a belt conveyer 90 leading to a storage space.
Patent GB-489049-A (GB)
Title: Improvements in or relating to conveying systems and the like
IPC: B62B5/00
Filed: 1937-03-19
Abstract: 489,049. Turntables. GOSS FOSTER, Ltd., LONG, S. W. H., and VARLEY, O. J. March 19, 1937, No. 8145. [Class 104 (ii)] [Also in Group XXXII] In a system for conveying rolls of paper to printing-machines, the rolls are carried upon trollies 23, Fig. 5, each of which is fitted with a single central wheel 25 adapted to be guided on a single track or rail and with a number of auxiliary lateral supporting and stabilizing wheels 29, while a number of turntables 15, Fig. 2, is provided at various points to facilitate the transfer of the trollies to perpendicular branch tracks leading to the printing-machines. On its upper surface each turntable is fitted with grooves 18 in alignment with grooves 10 in the track rails, and spring-pressed plungers 19 coacting with recesses 21 in the turntable are provided to secure the latter in operative position,
Patent GB-195519-A (GB)
Title: A stand for making the top of an incubator into a table
IPC: A01K41/00
Filed: 1922-03-22
Abstract: 195,519. Newth, L. F. March 22, 1922. Hatching-appliances.-A stand or table for placing or fixing on the top of an incubator for use in cooling and turning eggs is made with a oentral opening a in the top parallel with the front and back, and with a notch c in one side. It is larger than the egg tray and is provided with. legs or other means for raising it above the top cf the incubator.
Patent GB-786422-A (GB)
Title: Improved heater for heat transfer systems
Inventor: PAYNE HUGH FREDERICK
IPC: F22B21/34
Filed: 1954-03-22
Abstract: 786,422. Boilers for liquids. HYGROTHERM ENGINEERING, Ltd. March 21, 1955 [March 22, 1954], No. 8273/54. Class 64(1) A liquid heater comprises one or more panels each consisting of a single layer of juxtaposed parallel liquid channels 7 arranged in two or more sections. The liquid flows in opposite directions in adjacent sections, and is thoroughly mixed between sections for temperature equalization, and the panels are heated mainly by radiant heat. In the form shown, horizontal U- shaped tubes line three side walls of the combustion chamber, and are connected at the front to two vertical headers 9 which have transverse partitions 10 between groups of tubes. The partitions have small holes for the escape of vapour and gases. The tubes have longitudinal fins which almost close the gaps between them, except in the lower part of the rear wall where the hot gases pass into the chamber 13 leading to the flue 14. This chamber contains sinuous tubes 18 connected in two sets to two pairs of headers, the two sets being connected in series by a pipe 21. In another form, the roof of the combustion chamber is lined by two groups of U-tubes connected at the front to a horizontal header which has transverse perforated partitions. The liquid to be heated flows first through the wall tubes, then through the roof tubes, and finally through the sinuous tubes in the rear chamber. The roof and walls may alternatively be lined with parallel tubes connected to front and rear headers.