baber/WOPTO huggingface dataset:
Patent GB-665150-A (GB)
Title: Improvements in or relating to colour photography
Inventor: HARRISON GEOFFREY BOND
IPC: G03C7/18
Filed: 1949-03-23
Abstract: 665,150. Colour photography. ILFORD, Ltd. March 20, 1950 [March 23, 1949], No. 7945/49. Class 98 (ii). A masked colour record suitable for printing improved colour copies of opposite sense is made by exposing a multilayer film having red, green and blue-sensitive silver halide layers containing colour formers, the blue-sensitive layer being either outermost or else next to a support, colour developing followed if desired by a vigorous bleach and white development, reexposing part of the residual silver halide, developing in a non-colour-forming developer, converting at least part of the then remaining silver halide to silver sulphide, and removing silver and any still remaining silver halide. The position and contrast of the sulphide masking, image may be controlled by fully reexposing any layer in which a mask is not required, by fully re-exposing but incompletely re-developing 'a layer in which a mask is required or by partially re-exposing and fully redeveloping such layer. Conversion of silver halide to silver sulphide may be effected by use of sodium sulphide or alkaline thiourea solution and the silver sulphide may be converted by ion interchange to cadmium, arsenic or antimony sulphide. In example (1) a specified film of conventional true colour negative type is re-exposed in the top, blue-sensitive layer by blue light whose action is restricted thereto by an underlying yellow colloidal silver filter layer, to provide masks in the red and green-sensitive layers, and it is suggested that a high contrast positive film should be used for printing this. Example (2) describes reexposure of the red-sensitive layer with red light in addition to the blue light re-exposure, resulting in a mask in the green-sensitive layer only. Specifications 475,784, 475,786, 544,645 and 550,994 are referred to.
Patent GB-1182099-A (GB)
Title: A Method of Preparation of L-Arabinose
Inventor: TIBENSKY VLADIMIR
IPC: C13K13/00
Filed: 1968-02-19
Abstract: 1,182,099. Preparation of L-arabinose. SLOVENSKA AKADEMIA VED. 19 Feb., 1968. [6 April, 1967], No. 7945/68. Heading C2C. L-arabinose is prepared by de-esterifying pectin in sliced sugar beet by means of an acid or alkali, hydrolysing the mixture with acid, separating residual material, neutralizing the liquid from the hydrolyped mixture, separating any precipitate formed, eliminating saccharides accompanying L-arabinose in the liquid from the hydrolysis mixture, concentrating the mixture, clarifying the concentrated mixture by means of a C 1-4  saturated monohydric alcohol and crystallizing L-arabinose from the resulting alcoholic solution. The hydrolysis is preferably effected by heating for at least 4 hours at a temperature of at least 80‹ C. with a solution of H 2 SO 4  or by counterflow with an acid. The saccharides accompanying L-arabinose may be eliminated by the action of a yeast and after concentration the mixture is preferably clarified by means of a 3- to 5-fold volume of hot ethanol or methanol.
Patent GB-401169-A (GB)
Title: Method and apparatus for predetermining the size of rebored cylinders
IPC: B23Q9/00
Filed: 1933-03-16
Abstract: 401,169. Gauging length. VAN NORMAN MACHINE TOOL CO., 160, Wilbraham Avenue, Springfield, Massachusetts, U.S.A. March 16, 1933, No. 8050. Convention date, Nov. 4, 1932. [Class 106 (ii).] A gauging device for determining the length of an extensible boring tool comprises a panel 40 with an abutment 43 at one end, against which the cutting point of the tool is placed, and a micrometer 44 at the other end which, preferably, records directly the diameter of bore that the tool will cut when set to the length between the gauge faces. Specification 397,645, [Group XXII], is referred to.
Patent GB-1171551-A (GB)
Title: Swing Pipe Joint
IPC: F16L27/08
Filed: 1967-02-20
Abstract: 1,171,551. Pipe joints. LOCKHEED AIRCRAFT CORP. 20 Feb., 1967 [5 July, 1966], No. 8051/67. Heading F2G. A pipe joint comprises first 16 and second 18 relatively rotatable housings, the first housing 16 being provided with a sealing ring 30 and the second housing 18 with a seat 40. The sealing ring 30 and the seat 40 are mounted eccentrically of each other such that, on relative rotation of the two housings the sealing ring 30 and seat 40 oscillate with respect to each other. In the construction shown, the sealing ring 30 is mounted coaxially with the first housing and is non-rotatably held therein by a key 36 working in a slot 34 of the ring. The seat 40 is mounted eccentrically of the second housing and also mounted non-rotatably therein, the sealing ring 30 and seat 40 being sealed to their respective housing by metallic, E cross-sectioned seals 39, 48. The two housings are rotatably connected by an anti-friction bearing 20.
Patent GB-1105847-A (GB)
Title: Treatment of minute capsules in liquid to inhibit clustering
IPC: B01J13/20
Filed: 1967-02-21
Abstract: 1,105,847. Making microcapsules. NATIONAL CASH REGISTER CO. 21 Feb. 1967 [30 March, 1966], No. 8103/67. Heading B8C. The walls of microcapsules, of hydrophilic polymeric material, are rendered non-sticky by treatment with a cationic surfactant after they have been separated as a liquid slurry from the aqueous sol in which they were formed. The walls may be of gelatine hardened by a crosslinking compound such as glutaraldehyde or formaldehyde. The surfactant may be a primary amine acetate or a quaternary amine salt, or surfactants of both these classes may be applied simultaneously or successively. Suitable surfactants are hydrogenated tallow furfuryl amine acetate, trimethyl arachidyl behenyl quaternary, or dimethyl di-hydrogenated tallow quaternary. The surfactant may be applied in aqueous solution, or in an organic solvent such as petroleum distillate, and the capsules are subsequently spray dried or dried by hot air. The core of the capsules may be toluene, or other solid, liquid or gas.
Patent GB-629124-A (GB)
Title: Improvements in or relating to multiple coil wave change arrangements suitable for use in multi-range ultra high frequency radio and like receivers
IPC: H01F27/00
Filed: 1947-03-25
Abstract: 629,124. Radio-receiving apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and HEAD, L. R. March 25, 1947, No. 8153. [Class 40 (v)] In a coil turret for wave-range switching comprising a movable framework carrying a plurality of coils, means for retaining the framework in any one of a number of predetermined positions, and fixed spring contacts co-operating with contacts on the framework to switch in the required coils, the pair of fixed contacts appropriate to any one coil are oppositely disposed with respect to the direction of movement of the framework. In this way so long as contact is maintained with said coil, movement of the framework will produce an effective shortening of the connection through one fixed contact and an equal effective lengthening of the connection through the other. Fig. 4 shows a turret for ultra-high frequency receivers in which the movable framework is built up of metal discs 4 mounted on a rotatable insulated spindle, and each set of three coil formers 14 is supported on the discs parallel to the spindle, the ends of the formers being provided with co-operating male and female bosses. Each coil is connected to a pair of parallel split rings 6 which co-operate with the spring contacts 8a arranged as in Fig. 6 to keep the inductance of the contacts substantially constant when the framework is inaccurately positioned. The coils are provided with axially movable metal plungers 14a, the aerial and mixer coil plungers being gang controlled by means of the threaded rod 14b and the oscillator coil adjustable by the threaded rod 14c. Earthed spring contacts bear on the discs 4 which act as screens, and additional spring contacts may also be provided for aerial coupling coils. The positioning mechanism, Fig. 3 (not shown) comprises a spring-loaded ball co-operating with a notched ring fitted on the shaft.
Patent GB-117253-A (GB)
Title: Improvements in Caburetters for Explosion Engines.
Inventor: LOUIS GENETY
IPC: F02M17/02
Filed: 1918-05-15
Abstract: 117,253. Genety, L. June 29, 1917, [Convention date]. Void [Published under Sect. 91 of the Act]. Levels, regulating.-In carburettors wherein the fuel is supplied to the nozzle from a tank at a higher level, a constant small head of fuel is maintained by apparatus which replaces the usual float chamber. The spraying-nozzle G is fed from a small chamber A which is supplied from the main reservoir R which is air-tight, through a pipe T. The chamber A has, passing through an air-tight joint B<1>, a tube B which can be adjusted vertically. With this arrangement, the level in the chamber A will be that of the lower end of the tube B, provided the latter is not below the outlet passage of the nozzle G.
Patent GB-1086074-A (GB)
Title: Electrically conductive compositions
IPC: C07F7/22
Filed: 1966-02-24
Abstract: A composition for the production of fired on electrically conductive contacts and connections to palladium based resistor elements comprises (A) a finely divided palladium component that is metallic palladium, palladium oxide or palladium/silver alloy, or a mixture of at least two thereof (B) finely divided silver; and (C) a finely divided ceramic which is (1) a bismuth oxide/cadmium borate composition, (2) a bismuth oxide/alkali metal - cadmium borate composition, or (3) a bismuth oxide/lead fluoborate frit; component (A) being present in an amount providing a Pd content of from 22-35% component (B) in amount from 48-69% and (C) in amount from 9-30%. The composition is dispersed in water or alcohols, esters of alcohols, and solutions of resins, e.g. polymethacrylate.  The composition may be fired at 650 to 820 DEG C. or if fired at higher temperatures all the palladium oxide may be converted to palladium.ALSO:A composition for making fired-on electrically conductive contacts comprises (A) a finely-divided Pd component that is Pd, palladium oxide or a Pd-Ag alloy or a mixture of at least two; (B) finely divided Ag; and (C) a finely divided ceramic which is (1) a bismuth oxide-cadmium borate composition, (2) a bismuth oxide-alkali metal cadmium borate composition or (3) a bismuth oxide-lead fluoborate frit. Examples of (C) are Na2O, CdO, B2O3, and SiO2; Bi2O3, PbO, PbF2 and B2O3; and ZnO, Na2O, B2O3, SiO2, CaO, BaO, PbO, Al2O3 and ZrO2.  The composition is dispersed in water or alcohols, esters of alcohols, and solutions of resins, e.g. polymethacrylate.  The composition may be fired at 650 DEG  to 820 DEG  C. on a substrate of alumina or steatite.
Patent GB-1529412-A (GB)
Title: Disposable hats
IPC: A42B1/04
Filed: 1977-02-28
Abstract: 1529412 Disposable hats CELLUCAP MFG CO 28 Feb 1977 [9 June 1976] 08309/77 Heading A3V A disposable paper hat is formed from flat blanks and comprises a headband 10, side wall part 11 and crown 12, the side wall consisting of a vertically created outer surface 13 of crepe paper with a lining of flexible lightweight paper and the crown being formed of tissue or crepe paper adhesively secured to the inner face of lining 14. The headband 10 is telescopically adjustable to fit different sizes of head and a ventilation hole c is provided in the crown 12. A sweat band may be secured to the bottom edge of the headband 10.
Patent GB-570402-A (GB)
Title: Improvements in apparatus for use with portable electrically operated tools or the like
IPC: H02G11/02
Filed: 1943-05-26
Abstract: 570,402. Reeling devices. RUSHWORTH, D. May 26, 1943, Nos. 8359 and 16669. [Class 78 (ii)] A lead B for power-feeding tools &c. is connected at a point intermediate its ends to the periphery of a winding drum A which is mounted on a cradle A<1>. The cradle A<1> may comprise a wheeled truck riding on an overhead track D, or may consist of an arm or cable suspended from a pivot overhead. The track D may itself hang horizontally from a pair of end links. In the arrangement shown in Fig. 3 the lead passes through a carriage F which also rides along the track, the cradle A<1> always taking up a position mid-way between the carriage F and the plug E. The drum may be provided with an internal spring so as to make it self-winding, and may then be fitted with a brake or locking mechanism. The lead may be an electric cable or a flexible tube conveying gas or pressure fluid.
Patent GB-1401961-A (GB)
Title: Motorised vehicular assemblies
IPC: A61G5/04
Filed: 1971-04-01
Abstract: 1401961 Electrical drive units M P CUSHEON 3 July 1972 [1 April 1971] 8393/71 Heading B7H A drive wheel assembly, particularly for collapsible invalid carriages, includes a housing 2 rotatably mounted by bearing 3 on a cross member 1 and rotatably supporting a ground wheel 4 driven, via gearing 10, by an electric motor 8. The cross member 1 serves to prevent collapse of the carriage when the assembly is mounted therein. A steering linkage (Figs. 2 and 3, not shown) connected to the housing allows the assembly to be pivoted about the bearing 3 to steer the wheel 4.
Patent GB-326852-A (GB)
Title: Improvements in and relating to portable and hand held cutting machines
IPC: A61C1/06
Filed: 1928-12-19
Abstract: 326,852. Williams, E. Dec. 19, 1928. Drilling and milling machines.-In a portable hand-held cutting machine for operating on any material or for surgical purposes, a casing containing the bearings and shafting &c. for the cutter is removably attached to a second casing containing a power unit or flexible shaftingt by means of a male and female coupling comprising a tapered portion and a parallel centring portion. The driving shafts are also provided with male and female couplings so that they may be connected and disconnected simultaneously with the casings and without the aid of tools. As applied to a rotary cutter machine, the cutter 12 is formed integral with or is attached to a shaft 14 rotated through bevel gearing 9 from a shaft 10 united by a sliding coupling 23A to a shaft 23 driven by a motor 2A. The power-unit 2A has a nozzle extension 31B connected thereto by a screwed ring 5, the extension being provided with parallel and tapered .bores for receiving the similarly shaped end 18 of the casing 18A which carries the bearings for the driving shafts. A key 19A may be provided for preventing relative rotation of the parts of the coupling 18 and the coupling is secured by a screwed ring 20 having projections 21 for rotation by hand. The casing 18A is interchangeable for others of different kind and may be replaced by a straight casing carrying a cutter co-axial with the shaft 23 for drilling &c. 'The lower portion 26 of the cutter-casing 18A may be made separate from the upper portion and angularly adjustable thereon to vary the inclination of the cutter 12, rack teeth being provided on the portion 26 and a hand-rotated pinion on the portion 18A to enable the adjustment to be effected. An additional bevel gear is then provided in the train 9 to enable the drive to be maintained in all positions. A spring guide 15, 17, adjustable by a screw 16, may be provided for assisting the control of the cutter and regulating the depth of cut. The coupling 18 may be secured to the casing of a flexible shaft which is formed similarly to the member 31B. The motor 2A is slidably secured in a non-circular recess of the casing 2 by means of the screwed ring 5 and a removable cover 43 and may be cooled by air circulation through holes 7 in the casing. Tubular extensions 8 may be provided on the casing to protect the electric conductors for the motor and projections 8A are provided for hand grip of the casing. The securing ring 20 for the coupling 18 mav screw on this portion of the coupling instead of on the portion 31B and the portion 31B may be formed integral with the base of the power unit. Milling-cutters.-The rotary cutter 12 has a flange wider than its central portion and may be provided with teeth on the inner, outer and side faces of the flange. Specifications 263.580 and 272,591 are referred to.
Patent GB-309289-A (GB)
Title: Nap raising machine
IPC: D06C11/00
Filed: 1928-03-20
Abstract: 309,289. Brunner, F. March 20, 1928. Pile or nap, raising.-In a drum cloth-raising machine, the friction driving discs for the raising-cylinders a.re capable of radial adjustment with respect to the drum and within the axially-stationary driving belt or ring whereby the speed of the cylinders is varied. As shown in Fig. 1, the casings 4 of the bearings of the raising- cylinders 1 are formed as sleeves adjustably rotatable in the star frame 2 of the drum of raising-cylinders and provided with hollow rotating pins 5 which carry different-sized friction driving discs 8, 9 and are connected bv a flexible connection 7 with the cylinders 1. The sleeves are provided with teeth 12 meshing with teeth on a wheel 13 having internal inclined teeth meshing with teeth on a sleeve 16 splined at 116 to a sleeve on the frame 2. The sleeve 16 is moved axially by a non- rotatable sleeve 17 in screw engagement with a chain wheel 18 operated by a hand-wheel. When the wheel 18 is rotated, the sleeve 16 is moved axially and causes rotation of the wheel 13 relative to the frame 2. The friction discs 8, 9 are thereby moved axially within a stationary resilient driving ring 10. Flanged bearing discs 14 for engaging the driving ring and adjustable radially with the raising-cylinder, may be provided. Instead of friction discs 8, 9, belt discs 110 may be employed. When a driving-belt is employed instead of the driving ring 10, it may be stationary, one end being fixed while the other is tensioned by a weight. In some cases, the belt is driven by a pulley geared to the drum through toothed wheels, whereby the speed may be varied. Oppositely rotating brushes for cleaning the cylinders are also driven from the drum by toothed gearing and are mounted on radius arms so that they remain constantly in mesh.
Patent GB-591120-A (GB)
Title: Improvements in and relating to chess instruction apparatus and the like
IPC: A63F3/00
Filed: 1945-04-05
Abstract: 591,120. Chess games. DREW, M. J. April 5, 1945, No. 8469. [Class 132 (ii)] Apparatus for practising an exemplary game of chess comprises a chequer board 1 having openings 2 in its squares and resting on steps in a tray 3, a series of cards 4 underneath the board, marked with symbols and instructions showing successive moves in the game, and a lid. The pieces have projecting portions which fit in the openings 2.
Patent GB-795281-A (GB)
Title: Improvements in or relating to bimetallic elements
Inventor: HOWARTH PHILIP
IPC: G01K5/68
Filed: 1955-03-23
Abstract: 795,281. Temperature-responsive actuating-elements. GENERAL ELECTRIC CO., Ltd. March 19, 1956 [March 23, 19551, No. 8487/55. Class 64(2) [Also in Group XXXVII] A bimetallic element 1 for use in a thermally operated electric switch has a surface coating 2 of silver which carries part of the totalelectric current but does not affect the mechanical properties of the element. The coating may be provided by plating, spraying or dipping the whole or part of the surface of the element which may, alternatively, be rectangular.
Patent GB-1029257-A (GB)
Title: Resistance welding machine
IPC: B23K11/24
Filed: 1965-02-26
Abstract: 1,029,257. Control systems for resistance welding. H. A. SCHLATTER A.G. Feb. 26, 1965 [March 5, 1964], No. 8502/65. Heading H2H. A supply system for resistance welding apparatus comprises three gas discharge tubes such as ignitrons 11, 21, 31 and a number of two-position switches 26, 27, 28, 38, the arrangement being such that with the switches in the position shown in the Figure the ignitrons are controlled by devices 12, 22, 32 to supply unidirectional pulses of energy to the welding transformer 4 from all three phases R, S, T of a three-phase supply whilst with the switches in their alternative positions ignitrons 11, 21 are connected in reverse parallel relationship and ignitron 31 disconnected, the welding transformer 4 then being supplied from one phase RS only of the supply with pulses of energy having alternately opposite polarities. When the system is being used in the unidirectional pulse manner a control member 5 closes contacts 15, 25, 35 at the end of each pulse thereby connecting diodes 13, 23, 33 across ignitrons 11, 21, 31 respectively in the reverse polarity thus enabling the welding transformer 4 to dissipate its remanent energy to improve the welding performance. In a further embodiment the welding transformer is supplied with three primary windings which in the unidirectional pulse operation are energized over separate ignitrons but in the alternate polarity pulse type of operation only one of the windings is energized. In both modes of operation the pulse widths are controllable by the devices 12, 22, 32.
Patent GB-474514-A (GB)
Title: Improvements in holders or frames for cards containing advertising matter or the like
IPC: G09F1/12
Filed: 1937-03-23
Abstract: 474,514. Picture and like frames. SANDOR, N. March 23, 1937, No. 8522. [Class 11] [Also in Group XVIII] A frame or holder for photographs, cards, or the like, intended for use in advertising- apparatus, e.g. of the type in which the holders are moved in guide rails or the like, comprises a panel 1, Fig. 1, and means for clamping the card to the panel including spaced spring strips 4, secured to the panel at one end, and joined at the free ends by a transverse strip 5 adapted to engage beneath a flange 6 on an opposite edge of the panel. The strips 4 are welded at the end to a flange 3 which retains one end of the card. The flange 6 serves as a socket for a supporting pintle 7. The picture can be viewed through either a hole 2 in the panel or through the clamp 4, 5. Strengthening side folds 8 are provided. In a modification adapted to hold two cards on one side, the lower clamping means 5,. Fig. 4, are engaged at their free end under a flange forming part of a cross member 3a, to which the side strips 4a of the upper clamping means are secured. A positioning notch 9 on each of the members 5 engages a projection 10.
Patent GB-477309-A (GB)
Title: Improvements in searchlight unit
Filed: 1936-03-21
Abstract: 477,309. Searchlights. RADELET, F. March 21, 1936, No. 8544. Void. Convention date, March 29, 1935. [Class 75 (iii)] In a searchlight unit for locating aircraft &c. in which a compound beam d is produced by a plurality of projectors a arranged in a group around the central axis of a support or cradle b, adapted to be movec angularly in all direc tions, the projectors are pivotally mounted or the support for simultaneous and sym metrical angular movement in order to spread or concentrate the illuminated zone i. As shown, the pivots care arranged on the sides of a square. Alternatively. the projectors may move tangentially to a circle concentric to the central axis on pivots arranged radially to the axis. The projectors may be arranged in two or more concentric series and may be rotatable simultaneously about the central axis.