baber/WOPTO huggingface dataset:
Patent GB-943844-A (GB)
Title: Improvements in or relating to distributer valves for controlling vacuum operated clutches
IPC: F16D48/02
Filed: 1961-04-05
Abstract: 943,844. Clutch control. REGIE NATIONALE DES USINES RENAULT. April 5, 1961 [April 7, 1960], No. 12177/61. Heading F2L. A control valve for a vacuum servomotor for releasing a spring-engaged clutch comprises an axial rod 40 and a sleeve 46 in a casing 35, connected to the gear-change mechanism and urged to the central position by a spring 62 located between two collars 60, 61, two sealing collars 64, 65 with perforated flanges and connected to a spring-loaded flexible sleeve 67 co-operating with the valve closure members engaging seatings in sleeve 46, and so arranged that an annular space between the collars is in permanent communication through passages 75, 76 with the servomotor, and an orifice 70 in rod 40 to provide communication through passages 42, 71 between the annular space and atmosphere, the orifice 70 being closed by one of the sealing collars upon the initial displacement of the valve from the central position. A further passage 77 is in communication with the vacuum source. Upon relative movement of members 40, 46 preparatory to making a gearchange, in addition to the closure of orifice 70 previously referred to, sleeve 67 and its spring 68 are compressed so that one of the valve closure members is lifted from its seating to provide free communication between servomotor passage 76 and vacuum passage 77, to release the clutch.
Patent GB-415210-A (GB)
Title: Improvements relating to lamp reflectors
IPC: F21V7/22
Filed: 1933-04-26
Abstract: 415,210. Reflectors. WILLIAMS, A. E., 84, Vyse Street, Birmingham. April 26, 1933, No. 12223. Addition to 395,611. [Class 75 (ii).] In a reflector comprising a metallic base, an intermediate metallic layer, and an outer reflecting surface, as described in the parent Specification, the intermediate layer is of nickel or cobalt of a depth at least À0004 inch, or substantially equal to or greater than that of the reflecting surface, which latter is a metal of the platinum group.
Patent GB-1247125-A (GB)
Title: Improvements in or relating to the hydrogenation of acid anhydrides
Inventor: WAKAMATSU HACHIRO
IPC: C07C45/00
Filed: 1970-03-13
Abstract: 1,247,125. Aldehydes; carboxylic and aidehyde carboxylic acids. AJINOMOTO CO. Inc. 13 March, 1970 [7 April, 1969], No. 12296/70. Heading C2C. An aldehyde carboxylic acid or an aldehyde and a carboxylic acid are prepared by heating (i) an intramolecular carboxylic acid anhydride, or (ii) an intermolecular carboxylic anhydride respectively with hydrogen and carbon monoxide in the presence of a cobalt carbonyl catalyst. Acetic, propionic, butyric, isobutyric, caproic, valeric, stearic, palmitic, benzoic and toluic anhydride; mixed anhydrides aceticbenzoic, acetic-palmitic and caproic-palmitic anhydrides and the intra-molecular anhydrides succinic, glutaric, and phthalic anhydrides are mentioned. Polar solvents may be present but a mixture of benzene with pyridine may be used. Dicobalt octacarbonyl and cobalt carbonyl complexes with trialkyl or triallyl phosphine, arsine or stilbene as ligand may be used and the presence of a compound such as a tertiary amine or a metallic bromide or iodide increases the reaction rate. Examples describe the preparation of acetic acid and acetaldehyde, propionic acid and propionaldehyde, stearic acid and aldehyde, benzoic acid and aldehyde, #-formyl propionic acid and γ-formyl butyric acid.
Patent GB-957774-A (GB)
Title: Methods of improving colour transparencies and prints
IPC: G03C7/30
Filed: 1963-03-28
Abstract: 957,774. Photographic processes. EASTMAN KODAK CO. March 28, 1963 [April 2, 1962], No. 12310/63. Heading G2C. Photographic colour prints and transparencies are treated with an aqueous solution of glucoheptonic acid or a water-soluble salt thereof to protect the dyes against fading and staining.
Patent GB-642022-A (GB)
Title: Light signals
IPC: B61L5/18
Filed: 1948-05-05
Abstract: 642,022. Light refractors. WESTING- HOUSE BRAKE & SIGNAL CO., Ltd. May 5, 1948, No. 12318. Convention date, Sept. 30, 1947. [Class 75(ii)] A cover glass 4 for a railway signal lamp mounted at a bend in the track is provided with single vertical prisms 5 alternating with vertical rows each composed of a series of obliquely refracting prisms 8, the prisms 5 refracting light laterally with progressive increase in refraction from one prism edge to the other whilst the oblique prisms 8 refract the light laterally to the same side as the prisms 5 and also downwardly. The single prisms 5 have concave refracting surfaces which refract the parallel rays from a source 1 and lens 3 into a beam the intensity of which decreases progressively from the axis of the lens to a direction at 7 degrees to the axis. The prisms 8 are also curved and provide progressive lateral refraction from 7 to 10 degrees to the lens axis and additionally refract light downwardly to give progressive decrease in intensity between 0 and 10 degrees to the lens axis. The prisms 5 thus provide a long range indication and the prisms 8 an intermediate range indication whilst a close up indication is provided by a known type of lens 11 positioned to direct light through the central part of the cover glass where the prisms 5, 8 are omitted. Arrows may be moulded on the cover glass as shown in Fig. 3 to indicate the deflecting directions of the prisms.
Patent GB-1248689-A (GB)
Title: A machine for and method of making plastics articles
Inventor: DOBROVOLSKY ANATOLY ALEXANDROV
IPC: B29C45/56
Filed: 1969-03-10
Abstract: 1,248,689. Injection moulding machines. ODESSKOE SPETSIALNOE KONSTRUKTORSKOE BJURO SPETSIALNYKH STANKOV. 10 March, 1969 [15 July, 1968], No. 12444/69. Heading B5A. In an injection moulding machine having a toggle-operated mould locking mechanism plastics material is injected into the incompletely locked mould 11 and subsequently the toggle 4 is operated to completely lock the mould thereby ensuring better filling of the mould cavity. A plate 6 mounted on one of the toggle levers 7 co-operates with a non-contact induction switch 9 before complete straightening of the toggle, thereby stopping the mould-closing action. After injection, final straightening of the toggle is effected.
Patent GB-130731-A (GB)
Title: Improvements in the Impregnation or Charging of Porous or Permeable Substances or Materials with Liquid or Plastic Materials.
Inventor: CARTER JAMES EDWARD
IPC: D06B3/10
Filed: 1918-07-31
Abstract: 130,731. Carter, J. E., Wright, S. A., and Ratcliffe, W. July 31, 1918. Steeping materials. - Apparatus for impregnating cloth, leather, and like permeable materials, under vacuum, comprises two or more tanks 1, lids 8, pivoted cramp levers 4, a vacuum pump and compressor communicating with the upper part of the tank by the pipe 12, a pipe 16 for admitting and returning the impregnating-medium, and detachable vertical grids 11 arranged longitudinally in the tank to hold the hides or sheets in open condition within the tank so as to be fully exposed to the action of the vacuum and later to the action of the admitted medium. The impregnating-medium may be then forced from the tank, the vacuum re-established, and a second medium admitted to react with the first medium within the pores of the permeable material. Examples of suitable media are given.
Patent GB-331614-A (GB)
Title: Improvements relating to carburetters
IPC: F02M7/16
Filed: 1929-04-23
Abstract: 331,614. Morris Industries, Ltd., and Skinner, T. C. April 23, 1929. Spray carburettors. - In carburettors wherein the air supply is heated and the fuel is controlled, a thermally sensitive device under the influence of the heated air serves to reduce the fuel supply as the temperature of the air increases and vice versa. The fuel flow is controlled by a tapered needle valve a actuated by a piston in the part b, the valve passing through an aperture in an adjustable sleeve c through which the fuel passes. The sleeve is moved to control the fuel in the manner stated, by a thermally sensitive device! g, located in or alongside the heated-air conduit h and acting through linkage f, e, d. Specification 15071/15 is referred to.
Patent GB-1240244-A (GB)
Title: Improvements in silos
Inventor: LAUDER JOHN PATON
IPC: B65G65/46
Filed: 1969-03-06
Abstract: 1,240,244. Screwed conveyers. HODGKINSON BENNIS Ltd. 5 March, 1970 [6 March, 1969], No. 12571/69. Heading B8A. A hollow shaft b of a helix or worm B for extracting material from a silo A is supported on trolleys C which traverse the length of the silo. The trolleys, supported on rails D and a5 are driven via a shaft B<SP>3</SP> which passes through the shaft b and carries pinions d engaging racks D<SP>1</SP>. The drive for the trolleys, from a motor B<SP>4</SP>, is automatically reversed at the end of each traverse but the drive for the worm B from a motor B<SP>2</SP> is unidirectional. Material is conveyed by the worm to a conveyer C<SP>2</SP>.
Patent GB-1141525-A (GB)
Title: Manufacture of amber glass
Inventor: HOPKINS ROBERT WILLIAM
IPC: C03C13/00
Filed: 1966-03-22
Abstract: 1,141,525. Coloured glass. CALUMITE CO. 22 March, 1966, No. 12583/66. Heading C1M. Amber glass is made by melting together a mixture of glass-forming ingredients including sand and 0À25-100% wt., based on sand, of granular blast-furnace slag containing manganese sulphide and/or iron sulphide, and which contains no metallic Fe, the mixture also containing oxidizing agents in amount sufficient to oxidize any sulphides other than those of Mn or Fe, that may be present in the slag. The oxidizing agent may be gypsum, salt cake, nitre, barium sulphate, ammonium sulphate, or magnesium sulphate, or steam or oxygen may be injected into the molten material during the glass-making operation. The mixes may be melted at 2500-2950‹ F.
Patent GB-201999-A (GB)
Title: Improvements in liquid measuring and dispensing apparatus
IPC: B67D7/16
Filed: 1922-05-04
Abstract: 201,999. Hammond, F. May 4, 1922. Addition to 158,843. Fixed-chamber apparatus ; varying quantity measured in.-In apparatus according to the parent Specification, comprising a measuring- chamber with an adjustable overflow pipe which is locked in position by an arrangement of three concentric slotted sleeves, one of which also operates the inlet and outlet valves, these sleeves are replaced by three plates, and means are provided for adjusting the slots. The outer fixed plate g has a vertical slot from which branch horizontal slots i, the intermediate locking-plate k has a similar vertical slot and horizontal slots on one side only, and the inner valve-operating plate n has a vertical slot only, slides in guides on the frame and has racks q meshing with pinions r on the valves e. f. The operating-handle p is fixed to the vertically-adjustable overflow pipe b, and, when turned to open the inlet valve and close the outlet valve, moves the locking-plate k so as to close the vertical slot. Adjustable slotted plated or blocks may be secured upon the plate g slightly to vary the level of any of the slots.
Patent GB-744494-A (GB)
Title: Improvements in or relating to terminations for high frequency waveguides and coaxial lines
Inventor: WHITEHEAD ERIC ARTHUR NORTH
IPC: H01P1/26
Filed: 1953-05-06
Abstract: 744,494. Transmission line terminations. ELLIOTT BROS. (LONDON), Ltd. May 6, 1954 [May 6, 1953], No. 12665/53. Class 40 (8). [Also in Group V] To form a termination, part of the normally electrically conducting boundary of a waveguide or coaxial cable is formed of a lossy dielectric material. The material may be composed of a ferro magnetic dust, e.g. carbonyliron dust, in a binder of polymerized resin which may be expanded. One or two or more of the walls 3, Fig. 2, of a wave-guide terminal section 1 may be flared outwardly and the flared portions lined with the lossy material 6, the thickness of which is such that it defines a passage 7 of the same constant cross-section as the rest of the wave-guide. The end of a circular wave-guide section or of a coaxial line may be flared outwardly and lined in a similar fashion (Figs. 8-12, not shown). Where two opposite surfaces 3, Fig. 4, are flared, the flares may commence at points relatively displaced in the direction of the axis of the section by a distance of #/4. The conical flare 4, Fig. 10, at the end of a termination of circular section 2 may be asymmetrically arranged with respect to the axis of the section. In this case the edge of the body 5 of lossy material meets the conducting boundary along a curved line 14. The electrically conducting shell 11 of the wave-guide of Fig. 6 is formed by electrodeposition, lossy material 13 being cast around the shell to provide rigidity and to fill a slot 12 in the shell. The slot 12 is tapered towards the input end of the section to provide a smooth transition. Specification 744,150 is referred to.
Patent GB-606638-A (GB)
Title: Apparatus for the recovery of volatilizable metals
IPC: C22B26/22
Filed: 1942-09-08
Abstract: 606,638. Distilling metals; magnesium; calcium. SCIENTIFIC & INDUSTRIAL RESEARCH, HONORARY ADVISORY COUNCIL FOR. Sept. 8, 1942, No. 12666. Convention date, Dec. 18, 1941. [Class 82(i)] In apparatus for the recovery of volatilizable metals, such as magnesium and calcium, the inner wall surface of the condenser on which the metal is deposited is tapered, the greatest internal diameter being preferably at the outer end of the condenser. In the apparatus shown, the condensing zone 1 of the retort 3 extends out of the furnace 2 and contains a removable cylindrical condenser 5 seated at 6 on a bevelled shoulder 7 of the retort. The internal diameter of the condenser 5 increases slightly towards its outer end. Specifications 606,636 and 606,637 are referred to.
Patent GB-460704-A (GB)
Title: Improvements in or relating to optical projecting apparatus
IPC: G03B21/00
Filed: 1935-04-29
Abstract: 460,704. Optical-projection apparatus. SASSOLI, M. April 29, 1935, No. 12755. Convention date, April 3. [Class 97 (i)] Apparatus for projecting images alternately from each of two rows of images on a film, comprises a lens system and a lamp for each image row, the lamps being alternately lighted and extinguished by means actuated in conjunction with the film feed to effect the projection ; corresponding images in the two rows are of the same objects in different positions so as to produce the effect of movement in the projected image. In the apparatus shown, the film is fed horizontally, by a toothed roller 16, across exposure apertures 7, 9 placed between projection lenses 2, 3 and lamps 11, 13 backed by angular reflectors 12, 14. Feeding is effected by clockwork mechanism 17 when a lever 5 frees a pawl 19 ; during feeding, the pawl 19 continues to contact with the lever 5, and the lever engages an extension of a contact plate 22<a>. The lamp holders 11<a>, 13<a> have electrical connection with a contact plate 22 through the aperture plate 6 and an arm 22b, and arms 10, 10<a> engaging the other poles of the lamps are electrically connected to the contact plate 22<a> through arms 21, 21<a>, alternatively engaging cams 23, 24, through the clockwork mechanism 17, and through the pawl 19 and lever 5 ; the contact plates 22, 22<a> engage the poles of a dry battery in the base of the apparatus, or of a transformer fed from the mains. The casing 1 is electrically nonconducting and has a detachable cover 1<a> which may serve as a light reflector. A partition 8 is provided in the projection chamber, and a frosted glass screen 20 is arranged in front of the lamps. According to the Specification as open to inspection under Sect. 91, the film may have more than two rows of images, each having a separate source of illumination. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1194633-A (GB)
Title: Improvements in or relating to Capstan Lathes
IPC: B23B3/06
Filed: 1968-03-15
Abstract: 1,194,633. Capstan lathes. A MONFORTS. 15 March, 1968 [17 March, 1967], No. 12755/68. Headings B3T and B3B. A capstan lathe comprises a main spindle 2 with a chuck 3 and a capatan constituted by arms 5 carried on a shaft 4, the axes of the shaft 4 and spindle 3 being parallel and mounted one above the other, the shaft being axially displaceable and indexable to bring the capstan arms 5, which carry tool or work holding slide 6, into successive work stations at which the arms are engaged by locating bolts 7. The tool or work holding slides are movable transversely of the machine spindle 3 by screw and nut means independently driven by separate motors. In the embodiment shown in Fig. 5 a slide 6 is provided with work holder 17 which is indexable at right angles to the direction of displacement of the slide so as to present workpieces to and receive workpieces from the chuck 3. The indexing of the work holder may be effected manually or automatically.
Patent GB-1004371-A (GB)
Title: Process for the dehydrogenation of a tetrahydroanthraquinone to an anthraquinone
IPC: C01B15/023
Filed: 1962-04-03
Abstract: An anthraquinone (AQ) is formed by dehydrogenation of the corresponding tetrahydroanthraquinone (THAQ) by contacting at above 80 DEG  C. the solution containing the THAQ with acetylene, or an aliphatic monolefine or cyclic olefine in gaseous form, in the presence of Al2O3, MgO, Al2O3/MgO in spinel form, active carbon, MgCO3, Na2CO3, K2CO3 or mixture thereof and Pt, Pd or Ni.  The THAQ is formed in the manufacture of H2O2 by cyclically reducing an AQ and oxidizing the resultant anthrahydroquinone. The temperature is from 80 DEG  to 300 DEG  C.  The catalyst is Pd, Pt or Ni.  The aliphatic mono-olefine may be ethylene or propylene, and an excess, e.g. seven times the theoretical quantity, of the acetylene or olefine may be used.  Solvents include e.g. aliphatic or aromatic hydrocarbons, alcohols, ketones, and esters; specified are trimethylbenzene, diisobutylcarbinol and acetophenone.  The THAQ, which may be mixed with the AQ, may be an alkyl THAQ, e.g. butyl or amyl THAQ.ALSO:In the manufacture of hydrogen peroxide by cyclically reducing an anthraquinone (AQ) and oxidizing the resultant anthrahydroquinone, any tetrahydroanthraquinone (THAQ) formed is dehydrogenated to the corresponding AQ by contacting at above 80 DEG  C. the solution containing the THAQ with acetylene, or an aliphatic monolefine or cyclic olefine in gaseous form, in the presence of Al2O3, MgO, Al2O3/MgO in spinel form, active carbon, MgCO3, Na2CO3, K2CO3 or mixture thereof and Pt, Pd or Ni. The temperature is from 80 DEG  to 300 DEG  C.  The catalyst is Pd, Pt or Ni. The aliphatic monoolefine may be ethylene or propylene, and an excess, e.g. seven times the theoretical quantity, of the acetylene or olefine may be used. Solvents include e.g. aliphatic or aromatic hydrocarbons, alcohols, ketones, and esters; specified are trimethylbenzene, di - isobutyl - carbinol and acetophenone. The THAQ, which may be mixed with the AQ, may be an alkyl THAQ, e.g. butyl or amyl THAQ.
Patent GB-305883-A (GB)
Title: Improvements in apparatus for subjecting a mass of powdered or granular material to the action of gases, particularly applicable to the calcining and roasting of ores and similar materials
IPC: C22B7/02
Filed: 1928-05-01
Abstract: 305,883. Ridge, H. M. May 1, 1928. Producers.-In apparatus for disseminating gas or vapour through powdered or granular material supported on a bed of inert granular material, and suitable for use as a gas producer, ore roasting furnace, or apparatus for making bleaching powder, the gas is introduced into the inert material from one or more chambers which underlie the latter and are entirely unobstructed throughout their whole area. The pulverulent or granular material under treatment occupies an annular hearth A supported by firebars E in four chambers C. A layer of inert granular material is placed on the finebars and the material treated may be continuously stirred bv rabbles H. The air or other gases are thus evenly distributed first to the granular layer and then to the underside of the material. The firebars may each be formed with a hood E<1>, Fig. 3, so that the gas space F is not choked by dust. The rabbles cause the material to move inwardly into a space K having discharge outlets L, and the layer of inert granular material may be discharged by the rabbles through outlets N. Multiple hearth apparatus may be formed by units as above described and having several zones in one horizontal plane.
Patent GB-387647-A (GB)
Title: Improvements in regulators for the fuel pressure in internal combustion engines
IPC: F02M17/04
Filed: 1931-05-01
Abstract: 387,647. Spray carburetters. SOC. GENERALE DES CARBURATEURS ZENITH, 10, Rue Petitot, Geneva, Switzerland. May 1, 1931, No. 12933. Convention date, May 1, 1930. Void [Published under Sect. 91 of the Acts]. [Class 7 (iii).] In order to dispense with a float chamber and to permit, in the case of aircraft, of flying in an inverted position, the fuel flow to the nozzle 6 is controlled by a valve 4, Fig. 1, attached to a diaphragm 9 subjected on its outer face to atmospheric pressure or to the pressure in the carburetter air-intake. Fuel enters the chamber 2 at 1 and flows to the nozzle 6 through a calibrated orifice 7. In Fig. 2, the diaphragm 9 is disposed vertically and its free surface communicates through a calibrated orifice 14 with the air-intake passage 13, and through a valvecontrolled orifice 15 with the atmosphere. The air may be supplied under pressure, and the direction of the communicating passage varied. The valve 4 may be connected to the diaphragm through a system of levers, or through a unidirectional device in which the membrane controls only the closure of the valve. The membrane is not loaded, and has no elastic reaction.
Patent GB-570443-A (GB)
Title: An improved counting mechanism
IPC: G01G23/32
Filed: 1943-08-11
Abstract: 570,443. Counting-apparatus. LANDIS & GYR SOC. ANON. Aug. 11, 1943, No. 13004. Convention date, Aug. 3, 1942. [Class 106 (i)] A counting mechanism 3, Figs. 6 and 7, has a magnifying rod 4 of lenticular cross-section mounted on the apertured dial plate 5 at a distance from the character bearing members corresponding to the focal length. The characters are inscribed in a substantially square space 6 on the members and adjoin adjacent characters and thus reduce the diameter of the members as compared with the normal or usual form of members.
Patent GB-1389665-A (GB)
Title: Ventilation in slidable panelling
IPC: E06B7/02
Filed: 1971-05-04
Abstract: 1389665 Ventilators ALUSAGE Ltd 3 May 1972 [4 May 1971] 13061/71 Heading F4V A frame member for the glass pane or panes 16 of a sliding window or door comprises a channel 10 for receiving the pane(s) 16, a channel 12 for receiving a flange 28 on a fixed surround 30 and a web 14 having at least one ventilating aperture 32 and linking the channels 10, 12, and is extruded from aluminium. Resilient sealing strips 20, 26 are provided in the channels 10, 12. A slidable plastics cover 36 is provided for the aperture(s) 32 and a louvred plastics moulding 42 is mounted in a recess 40 on the opposite side of the web 14.
Patent GB-131230-A (GB)
IPC: H01R33/22
Abstract: 131,230. Bey, H. Jan. 10, 1919. Holders for screw - cap lamps for use in electric signs are formed of porcelain. china, composition, or other insulating composition, and are threaded internally to engage the lamp cap. Connexion is made by a central contact spring b, preferably of brass, and a spring c, preferably of German silver, engaging the screwed cap and located in a recess formed by cutting away the internal screw-thread. The holder is of cylindrical shape with an internal recess to take the neck of the lamp. The sides are extended at the base to protect the terminals b', c<1>. This extension may be cut away in places to facilitate attachment of the leads. Channels a<3> permit attachment to a signboard, a flange at the forward end of the holder abutting against the front of the board.