baber/WOPTO huggingface dataset:
Patent GB-183626-A (GB)
Title: Improvements in hoods for photographic cameras
IPC: G03B17/12
Filed: 1921-05-13
Abstract: 183,626. Peacock, T., and Newman & Guardia, Ltd. May 13, 1921. Focusing-devices.-Relates to a collapsable hood for attachment to the rear of a camera, of the kind provided with a lens for viewing the focusing-screen, and consists (1) in mounting the lens on a flap foldable within the hood and (2) in tapering the hood at its forward end to permit it to be fitted into the existing focusing-hood of the camera. In the form shown, the hood comprises a casing 1 of rectangular cross-section, which preferably tapers at 6 from front to rear and has collapsable sides 5 so that it may be folded flat. In the rear end is a flap 9 which carries the viewing lens 10, and is hinged at 11 so that it may be folded into the position shown in dotted lines. The flap fills the cross-section of the casing, and is drawn into operative posi. tion by a ribbon 13 passing through a slit in the bottom board 7.
Patent GB-417272-A (GB)
Title: Improvements relating to variable speed hubs for cycle wheels
IPC: B62M11/14
Filed: 1933-05-11
Abstract: 417,272. Change - speed cycle hubs. RALEIGH CYCLE CO., Ltd., and RAVEN W. H., 177, Lenton Boulevard, Lenton, Notting- ham. May 11, 1933, No. 13718. [Class 80 (ii).] A two-speed cycle hub comprises a shell a made from pressed metal and formed at one end with a flanged chamber b containing a twospeed gear of known construction. Planetgears d supported on a carrier c fixed to the shell a mesh with an internal ring g and with a sun gear j. The ring g is supported on ball bearings h, i and is driven directly or through a free wheel from a chain sprocket o. The sun gear is adapted to be slid axially on a fixed axle f, and in the end position shown it engages the carrier c at c<1> so that the gearing turns solid for high speed. Movement of the gear j one step to the right by a pull chain l disengages the drive. A second step movement brings the gear into engagement with a fixed toothed ring k, whereby the gear j is held against rotation. The hub a is then driven at reduced speed. The other end of the shell a is supported by a separate flanged part e which runs on a ball bearing. The part e shown fits within the shell a. In a modification, this separate flanged part fits over the shell tube a and is expanded to form a chamber housing a suitable brake.
Patent GB-720046-A (GB)
Title: An improved method of making sand-resin moulds
IPC: B22C3/00
Filed: 1952-05-30
Abstract: 720,046. Mould and core materials. GENERAL MOTORS CORPORATION. May 30, 1952 [July 20, 1951], No. 13785/52. Class 83(1). In a method of making shell moulds, the heated pattern is coated, before application of the sand-resin mix, with a mould-release agent comprising a minor proportion of a high melting point natural wax and a major proportion of a liquid vehicle. The liquid vehicle may be water or kerosene or a mixture of both. With a water-based agent an emulsifier such as emulsifiable cutting oil, or polyoxyethylene sorbiton mono-oleate or monopalmitate surfaceactive agents is employed, in quantities of from 0.05 per cent to 6 per cent by weight of the mixture, containing 0.1-20 per cent carnauba wax and the balance substantially all water. The wax is melted and heated with the emulsifier to a temperature of between 170-200‹ F., boiling water added and the mixture vigorously stirred. When kerosene is used instead of water no emulsifier is needed. Examples quoted are 1-2 per cent by weight of carnauba wax in kerosene; and 1 per cent by weight carnauba wax, 1-3 per cent by weight emulsifier, 7 per cent by weight kerosene and 89-91 per cent by weight of water. Wax, preferably pulverized, is dissolved in kerosene by heating a mixture of the two materials to a temperature of about 180‹ F. When a proportion of water is used the wax is dissolved in half of the kerosene, an emulsifier is dissolved in the other half, the two solutions then mixed at a temperature of about 189‹ F., and the water, preferably at boiling point, then added. Up to 25 per cent by weight of the carnauba wax may be replaced by candelilla wax. Specification 717,063 is referred to.
Patent GB-256576-A (GB)
Title: Improvements relating to checking loom pickers
IPC: D03D49/36
Filed: 1926-06-01
Abstract: 256,576. Perrin, E. A. Aug. 8, 1925, [Convention date]. Checking pickers.-A picker-checking device comprises a strap 7 which is adjustably secured ac one end to a helical spring g attached to the shuttle-box and passes through ears 6 in a cambered sheet metal bracket 1 attached to the end and back of the shuttle-box. The other part of the strap 7 is arranged parallel to the picking-spindle and is secured by a pin to a short strap 13 passed around the picking-spindle. An additional strap 15 runs on the picking- spindle and has its free end secured to the shuttle-box back by means of a hook.
Patent GB-562787-A (GB)
Title: Improvements in and relating to machines for casting films
IPC: B29C41/24
Filed: 1942-10-07
Abstract: <PICT:0562787/IV/1> <PICT:0562787/IV/2> <PICT:0562787/IV/3> A machine for casting films of cellulose acetate, cellulose nitrate, resins, gelatine, or the like comprises a horizontally disposed circular track and a plurality of metal plates provided with wheels running on the track, the plates having highly polished surfaces which collectively form an annular film casting surface.  Preferably, the casting surface is enclosed within a casing to prevent loss of evaporated solvent.  The metal plates may be made of cast metal which is then highly polished or nickel-, silver- or chromium-plated.  The plates are bolted or otherwise connected together end to end so that their edges abut closely without leaving ridges or depressions.  Each plate may have two pairs of wheels running on rails on the annular track. The film-forming solution is fed on to the casting surface from a spreading device and towards the delivery end of the track the formed film is removed from the surface and passed through a drying cabinet in which drying of the film is completed.  As shown in Figs. 1 and 2, the annular casting surface is formed by the polished surfaces of the plates 11 which are provided with wheels 12 running on rails 10.  The track and plates are enclosed in a casing 15.  The film is removed from the casting surface and passes through a drying cabinet in which drying of the film is completed.  As shown in Fig. 4, just after the film reaches the drying cabinet 21, the edges are gripped between two sets of rollers 17 and 18 disposed above and below the film, and the film is stripped from the casting surface. Rollers 17 preferably have serrated surfaces and are driven.  The film may be cut into sheets of the required size by a guillotine at the point A, and at the moment of cutting, the pressure on the rollers at the delivery end is released so that the cut sheets fall into a receiving tray. The side edges of the sheets, which are slightly curved, are straightened by trimming.  For driving the plates round the track, an electric motor may be provided for each plate.  To economise space, several annular film-casting machines may be arranged concentrically.
Patent GB-981716-A (GB)
Title: Sealing liners for receptacle closures
Inventor: ADCOCK EDMUND PHILIP
IPC: B65D53/04
Filed: 1963-04-09
Abstract: 981,716. Bottle &c. closures. KORK-NSEAL Ltd. April 9, 1963, No. 14224/63. Heading B8T. A sealing liner for use inside a screw cap 5 having a flat inside surface has a plane face 4 and a domed face 2, the domed face being provided with a concave depression 3 located centrally thereof. The breadth of the depression, which is in the shape of a segment of a sphere, is preferably half that of the domed face. The liner may be made from polythene, polyvinyl chloride, polyvinyl fluoride, polyvinyl alcohol, a polypropylene, a fluorinated hydrocarbon, a fluorohalocarbon, natural rubber or a synthetic rubber. Specification 817,415 is referred to.
Patent GB-761400-A (GB)
Title: A process for the production of lubricating oils of high viscosity index
Filed: 1954-05-14
Abstract: Lubricating oil having a high viscosity index is prepared by treating a petroleum lubricating oil with a solid adsorbent, contacting the oil-containing adsorbent successively with two or more quantities of a desorbing agent capable of selectively desorbing various fractions of the lubricating oil in succession, separating from the adsorbent each of these quantities of desorbing agent now containing a fraction of the lubricating oil and distilling the quantities of desorbing agent containing the saturated components of the lubricating oil so as to recover the desired saturated components having a refractive index (n20D) below 1.485 separately from the undesired saturated components having a refractive index greater than 1.485.  The recovery of the saturated components of the lubricating oil may be followed by distillation of the quantities of desorbing agent containing the aromatic components of the lubricating oil having a refractive index below about 1.525 and the aromatic components thus obtained may be blended with the saturated components having a refractive index below 1.485.  The process may be applied to the refining of dewaxed and deasphalted petroleum lubricating oil distillates and to the improvement of the viscosity index characteristics of white oils and of lubricating oil raffinate fractions obtained by the solvent extraction of naphthenic and mixed base petroleum lubricating oil distillates.  Solvents suitable for use in this solvent extraction are liquid sulphur dioxide, phenol, furfural and propane-cresylic acid mixtures.  The adsorbent may be silica gel, silica-alumina gel or activated carbon.  Suitable desorbing agents are saturated non-aromatic hydrocarbons having from about 3 to about 10 carbon atoms per molecule, particularly alkanes and cycloalkanes such as isopentane, isobutane, hexane, heptane, petroleum ether, cyclopentane and cyclohexane.  If the viscosity of the charge stock is undesirably high, the charge stock can be diluted with any suitable diluent, preferably the same material which is used as the desorbing agent after desorption and preferably after, regeneration by steaming, the solid adsorbent may be used for adsorbing further quantities of lubricating oil. In the example, petroleum lubricating oils are fractionated and blended according to the invention, the adsorbent being silica gel and the desorbing agent being isopentane.
Patent GB-1104911-A (GB)
Title: A process for colouring cellulose with reactive dyes
Inventor: GRIFFITHS GEOFFREY
IPC: C09B62/04
Filed: 1964-04-07
Abstract: Cellulosic textile material is padded or printed with a dyestuff having at least one sulphonic acid group and at least two reactive groups whose presence in the molecule confers the ability to the dyestuff of entering into chemical reaction with the hydroxyl groups of the cellulose molecule in the presence of alkaline reagents to bind the dyestuff by a chemical linkage to the cellulose molecule, which dyestuff falls into at least one of the three chromophoric classes:- a) dyestuffs containing an anthraquinone nucleus, b) dyestuffs containing a copper phthalocyanine nucleus, and c) azo dyes including metal-complex such as 1:1 copper and 1:2 chromium and cobalt azo dyes containing at least two reactive groups for each azo group, the dyestuff being fixed on the textile material by steaming in the presence of an alkaline agent at a temperature of 110-180 DEG C until at least 90% of the dyestuff has reacted with the textile material.  In particular dyes having two 2-chloro-4-(sulphoanilino)-s-triazin- 6 -ylamino groups are employed.
Patent GB-589437-A (GB)
Title: Improvements in or relating to colliery tubs, corves or wagons
IPC: B61D11/02
Filed: 1944-07-27
Abstract: 589,437. Corves. INGHAM & SONS, Ltd., J., and ODDIE, J. M. July 27, 1944, No. 14344. [Class 103 (iv)] A colliery tub 2 is provided with a base 1 mounted directly above the pedestal bearings 5 which carry the axles 4 and the base is suitably formed, cut out or dished at 6 to accommodate the upper halves of the wheels. Arcuate guards or covers 7 protects each wheel or pair of wheels and in the case of a light tub, the recesses may be formed by pressings made when constructing the base. The base is strengthened by transverse bars 8 at the ends which are braced by longitudinal bars 9.
Patent GB-611888-A (GB)
Title: Improved float or guide shoe or collar as employed in oil well and like equipment
IPC: E21B21/10
Filed: 1946-05-13
Abstract: 611,888. Wells. BRITISH OILFIELD EQUIPMENT CO., Ltd., and WITARD, S. L. May 13, 1946, No. 14367. [Class 85] In a float or guide shoe for guiding casing into wells, the inner surface of the outer sleeve a is provided with grooves b which, with the intervening projections c, are of sinuous form, or are of V or substantially. V-shape and separated by rounded-off projections, the cement or concrete of the inner sleeve d engaging said grooves.
Patent GB-182282-A (GB)
Title: Electro magnetic long distance switch
IPC: H01H50/30
Filed: 1921-05-24
Abstract: 182,282. Matt, G. May 24, 1921. No Patent granted (Sealing fee not paid). Electromagnetic switches for the distant control of electric lamps &c. comprise a four-armed armature wheel t, Fig. 1, which rotates step-by-step to different contact positions, when any one of the distant switches is operated and released, under the action of oppositely-disposed electromagnet poles r, s. The armature spindle k carries a starshaped contact-member x engaged by fixed contact springs p. The ends of the four-armed armature have upwardly-bent circumferential extensions m to ensure that, when the electromagnets are energized by the distant switch, the radial arms of the armature assume a definite position in line with the poles. In this position the four contact springs have just passed the dead-centre points in relation to the star-shaped contact-member, all the faces of which are of conducting material except one. When the electromagnets are de-energized, by the opening of the distant switches, the contact springs react upon the contact-member and cause a further rotary movement to the next switching position and locate the next two arms of the armature near the poles ready for the next movement. The four positions provide for an off-position and for positions in which one, two, or three lamps are in the main circuit. In a modified arrangement, Fig. 4, the further mechanical movement subsequent upon the electromagnetic movement is provided for by a crownwheel o<1> on the rotary contact member, acting in conjunction with a simlar wheel o<2> mounted in the base to yield vertically under the control of a spring F. To provide for use with alternating currents where it may happen that the value of the current is zero when the distant switch is released, the symmetrical relative disposition of the arms of the armature and the electromagnet poles is disarranged.
Patent GB-456773-A (GB)
Title: Method of separating the constituents of gaseous mixtures
IPC: C07C7/00
Filed: 1935-05-17
Abstract: 456,773. Separating gases by liquefaction. AIR REDUCTION CO., Inc., 60, East 42nd Street, New York, U.S.A.-(Assignees of Wilkinson, W. ; Rye, Now York, and Schlitt, J. L. ; Darien, Connecticut, both in U.S.A.) May 17, 1935, No. 14487. Convention date, Aug. 1, 1934. [Class 8 (i)] A complex gas mixture containing ethylene and propylene is separated by partial condensation into two fractions one containing nearly all the ethylene and the other nearly all the propylene, these fractions being afterwards rectified. The mixture is passed under pressure through an exchanger 6 to the bottom section 8 of a rectifier. The propylene and less volatile constituents accumulate as liquid in the base and are transferred through an exchanger 76 to a rectifying column 67. The liquid from this column flows into a rectifier 83 from the top of which vapour flows back to rectifier 67 while the liquid containing butane, butylene, &c., is carried off through the exchanger 6. Vapour from an intermediate point of the rectifier 67 flows into a rectifier 90 cooled by residual methane and hydrogen of the system; propylene vapour flows off from the top through the exchangers 76, 6, while liquid returns to column 67. Ethane &c. from the top of the rectifier mixes with gas or liquid delivered around the condenser 98 from the space around the condenser 12 of rectifier 8 and flows through the exchanger 76 joining with impure propane vapours from the rectifier 83 and passing off through the exchanger 6. Liquid accumulating at the top of rectifier 8 is drawn off through exchangers and delivered to a rectifier 34, uncondensed vapours pass to a second condenser 18 whence liquid formed therein is also delivered to the rectifier 34 while the vapours pass on to an exchanger 21 through which they flow and return, depositing liquid which is also carried to the rectifier 34, the residual hydrogen and methane partly rewarmed being expanded in an engine 27 and passing back through the exchanger to the condenser of the rectifier 90 and so to the exchangers 76, 6. From the rectifier 34 liquid passes to the space around condenser 18. Part of the vapour may be mixed with the exhaust of the engine 27 while part flows through exchangers 41, 43, and a compressor 44, back through exchanger 43, through a coil in the liquid around the condenser 18, and through exchanger 41 as washing liquid to the column 34. Ethylene flowing from the top of column 9 in which is the condenser 18 is delivered through exchangers to a point where part is drawn off by a pipe 62 while part is recompressed, passes through an exchanger to a coil heating the liquid in the base of column 67, through another exchanger to a coil heating the liquid around condenser 12, and back through an exchanger to supply washing liquid to the top of column 9.
Patent GB-1076954-A (GB)
Title: Method of producing half-tone screen pictures
IPC: G03F7/115
Filed: 1965-04-06
Abstract: 1,076,954. Photomechanical half-tone reproductions. E. KURBJUHN. April 6, 1965, No. 14600/65. Headings G2C and G2M. Half-tone pictures on printing plates are produced by imagewise exposing a light-sensitive material in which is embedded a screen of metal wires of opaque threads, developing and fixing the latent image and then exposing this screened master to a presensitized plate and developing and etching the plate to produce the half-tone print. The light-sensitive material is preferably a negative or positive silver halide emulsion in which is embedded a regular or irregular screen of coloured polyester threads or of tine metal wires.
Patent GB-1066894-A (GB)
Title: Improvements in or relating to gear checking instruments
IPC: G01B5/20
Filed: 1966-04-04
Abstract: 1, 066, 894. Gauging toothed gears. MAAG GEAR WHEEL & MACHINE CO. Ltd. April 4, 1966 [April 6, 1965], No. 14744/66. Heading G1M. A machine for checking gears 14 for radial run-out comprises measuring means 1, 2 mounted on a rotatable shaft 7 for rotation therewith, and having the form of uninterrupted body of revolution and representing a gear tooth adapted to enter a tooth space of a gear-wheel under test, a holder 15 in which the said shaft is mounted with its axis perpendicular to the axis of the holder, the holder being mounted on the machine frame so that the measuring means can reciprocate perpendicular to the axis of the holder and be resiliently movable perpendicular to the shaft, and means for indicating and recording said movement of the measuring means perpendicular to the shaft. The two jaws 1, 2 are mounted via cross-members 8, 9 on a screw-threaded spindle 10 such that when the spindle is rotated the jaws are moved relatively to each other to adjust them for the tooth space under test. When the gear under test is in position and the holder 15 locked in a position depending on the type of gear under test, the two jaws 1, 2 are adjusted for axial separation and are lightly biased into the tooth space by diaphragms 17, 18 Fig. 2 (not shown) which connect the holder 15 with a reciprocable slide 19. As the gear-wheel 14 rotates the slide 19 is moved tangentially of the gear-wheel, direction T 2 , and the depth of penetration of the two discs is measured by a feeler 31. As the jaws continue to rotate the interrupted portion comes adjacent to the gear-wheel 14 and the slide 19 is returned in the direction of arrow T under the influence of spring 25. Further rotation of both the gear-wheel and the jaws 1, 2 brings the next tooth space into engagement with the larger radius portion of the jaws to begin measurement of the next tooth space.
Patent GB-739781-A (GB)
Title: Pack-down machine for folding boxes and cans
IPC: B65B1/24
Filed: 1954-05-21
Abstract: 739,781. Filling machines. BALJAK CORPORATION. May 21, 1954 [May 26, 1953], No. 14975/54. Class 94 (1). Apparatus for tamping down the contents of cartons &c. prior to the closing comprises tamping pads 35, 36 mounted on a head 32 for remaining horizontal during rotations of the head. The head is rotated on a fixed shaft 30 by a chain and sprocket 55, 86. The shaft 30 has keyed to it a pinion 60 for rotating shafts 33, 34 to which are fixed the pads, through gears 70, 78, 79, 80. Plates 19-22 support the carton sides. A sweep 17 ensures that the carton lids are fully open.
Patent GB-862444-A (GB)
Title: Improvements in dye-sensitized photographic emulsions
Filed: 1957-05-13
Abstract: 862,444. Supersensitized photographic emulsions. KODAK Ltd. May 13, 1957 [May 21, 1956], No. 15060/57. Drawings to Specification. Class 98(2) Photographic silver halide emulsions are supersensitized with a combination of a dye having one of the formulae:- wherein R and R 1  are alkyl groups of I to 4 carbon atoms R 2  is an alkoxy group of 1 to 4 carbon atoms, or R 1  and R 2  may together complete a cyclopentane group, R 3  is hydrogen, an alkyl or alkoxy group of 1 to 4 carbons, a phenyl or substituted phenyl group or a 2- thienyl group, Z completes a benzthiazole, naphthothiazole or benzoxazole nucleus, and Z 1  completes a benzthiazole nucleus (when R is ethyl and R 3  is hydrogen) or a naphthothiazole or benzoxazole nucleus, and a ketone compound having one of the formulae:- wherein D is a dialkylaminoaryl, pyrryl or substituted pyrryl group, R 4  is an aryl, dialkylaminoarylvinyl or dialkylaminoaryl-1; 3-butadienyl group, R 5  and R 6  are alkyl groups of 1to 4 carbons and n is 0 or 1Ketone compounds specified are p-dimethylaminocinnamalacetophenone, di-(p-dimethylaminocinnamal) acetone, p-dimethylaminobenzalacetophenone, p-dimethylaminobenzal-2-acetonaphthalene, 2;5-di[(2;5- dimethyl-1-phenyl-3-pyrryl)methylene] cyclopentanone and 2;5-di(p-dimethylaminobenzal) cyclopentanone. Specifications 512,477, 581,772, 704,770, 862,443, Belgian Specification 506.549 and German Specification 810,458 are referred to.
Patent GB-571853-A (GB)
Title: Improvements in incubators
IPC: A01K41/00
Filed: 1943-09-15
Abstract: 571,853. Hatching and rearing appliances. ADAMS, A. J. Sept. 15, 1943, No. 15108. [Class 5 (ii)] An incubator comprises a hatching compartment. 4 supported in but spaced on all sides from the casing 1, a fan 14 situated close to the airintake 17, and a hot water radiator 15 close to the front wall 6 of the compartment 4. The cross-section of the passage 1 is small relative to that of the incubation chamber-and the air velocity undiminished in its passage from the fan to the chamber. The end 7a of.the compartment is open, and a baffle 16 masks both the radiator 15 and an opening 13 in the wall 6. Regulating slides are fitted to the openings 13, 17 and to the vents 18, 19. Humidity is maintained by water in troughs 28, 29. Temperature may be regulated thermostatically, and alarm means provided to indicate excessive variation.