baber/WOPTO huggingface dataset:
Patent GB-437302-A (GB)
Title: Improvements in the manufacture of compositions containing chlorinated rubber
IPC: C09D115/00
Filed: 1934-04-27
Abstract: Solutions of chlorinated rubber are obtained by using as solvent a volatile mixture of aliphatic and/or hydroaromatic hydrocarbons with ketones and/or esters of organic acids.  The chlorinated rubber may have a chlorine content of 54 to 68 per cent; suitable esters are methyl, ethyl, butyl and amyl acetates; suitable ketones are acetone and methyl-ethyl ketones.  Fillers, pigments and softening agents may be added to the solutions.  The hydrocarbons may be in excess compared with the esters and/or ketones.  Compositions according to the examples contain, in addition to chlorinated rubber, (1) dibutyl phthalate, aliphatic benzines, ethyl and butyl acetates, pigments, (2) a compound of sulphur with toluene or xylene, aliphatic benzines, acetone, butyl acetate, titanium dioxide, (3) wood oil, lacquer benzine, methyl ethyl ketone, cobalt naphthenate, (4) linseed oil varnish, aliphatic benzines, amyl acetate, acetone, a titanium hydroxide-chromic hydroxide mixture, (5) linseed oil-stand oil, lacquer benzine, hexahydrotoluene, isopropyl acetate, zinc white and a blue dyestuff, (6) a linseed oil-wood oil mixture containing lead-cobalt naphthenate, lacquer benzine, aliphatic benzines, acetone, n-butyl acetate, iron oxide red, (7) olive oil, ethyl acetate, butyl acetate, aliphatic benzines and lacquer benzine.ALSO:Solutions of chlorinated rubber are obtained by using as solvent a volatile mixture of aliphatic and/or hydroaromatic hydrocarbons with ketones and/or esters of organic acids.  The chlorinated rubber may have a chlorine content of 54 to 68 per cent; suitable esters are methyl, ethyl, butyl and amyl acetates; suitable ketones are acetone and methylethyl ketone.  Fillers, pigments and softening agents may be added to the solutions.  The hydrocarbons may be in excess compared with the esters and/or ketones.  Compositions according to the examples contain, in addition to chlorinated rubber, (1) dibutyl phthalate, aliphatic benzines, ethyl and butyl acetates, pigments, (2) a compound of sulphur with toluene or xylene, aliphatic benzines, acetone, butyl acetate, titanium dioxide, (3) wood oil, lacquer benzine, methyl ethyl ketone, cobalt naphthenate, (4) linseed oil varnish, aliphatic benzines, amyl acetate, acetone, a titanium hydroxide-chromic hydroxide mixture, (5) linseed oil-stand oil, lacquer benzine, hexahydrotoluene, isopropyl acetate, zinc white and a blue dyestuff, (6) a linseed oil-wood oil mixture containing leadcobalt naphthenate, lacquer benzine, aliphatic benzines, acetone n-butyl acetate, iron oxide red, (7) olive oil, ethyl acetate, butyl acetate, aliphatic benzines and lacquer benzine.
Patent GB-1219985-A (GB)
Title: Improvements in or relating to methods of electronic colour correction
IPC: H04N1/60
Filed: 1968-03-15
Abstract: 1,219,985. Electronic colour correction. DR.-ING RUDOLF HELL. 15 March, 1968 [22 March, 1967], No. 12837/68. Heading H4F. Relates to a method of electronic colour correction in which a secondary correction signal which disappears for grey tones is formed by subtracting an uncorrected primary colour separation signal (proportional to the original to be reproduced) from another colour correction information signal of the same grey contrast which is a primary colour separation signal or a linear mixture of two primary colour separation signals, and in which the uncorrected primary colour separation signal to which the secondary correction signal is added is first transformed according to a non- linear function which is an intermediate function between a linear and a logarithmic function, the form of which in the region between 100% and 1% of the primary colour separation signal value for the original colour white is represented by a power function y = x<SP>a</SP> with 0À3#a#0À6. The function according to which the colour separation signal is transformed is a Munsell function, i.e. a function of like physiological differences of perception. Each transferred primary colour separation signal may have a corresponding (i.e. associated) secondary signal added thereto.
Patent GB-801350-A (GB)
Title: Pulse synchronizer
Inventor: DEAN WALTER NELSON
IPC: G01S1/24
Filed: 1954-05-03
Abstract: 801,350. Automatic phase control systems. SPERRY RAND CORPORATION. May 3, 1954, No. 12854/54. Drawings to Specification. Class 38 (4). [Also in Group XL (c)] In a Loran receiving system two series of pulses, synchronized respectively with the received barter and slave pulses, are phasecompared on the screen of a C.R.T. The received pulses are sampled at the leading edges to avoid sky-wave interference. The slope of the leading edges of the received pulses is measured to determine the starting point of each received pulse. The leading edges are sampled twice, first at a predetermined voltage and then after a predetermined time. Master pulse. A servo feedback loop containing a frequency controlled oscillator produces a pulse at the instant that the master pulse leading edge reaches a predetermined voltage. A further circuit produces a pulse a fixed time after the first pulse and of amplitude corresponding to the master pulse amplitude at that instant. From this, a voltage is developed which varies directly as the rate of increase of the leading edge of the master pulse. This controls a delay circuit to produce pulses commencing at the starting instant of each master pulse and which are applied to the display C.R.T. Slave pulse. The circuit is identical with the master pulse circuit except that the feedback loop contains a variable delay circuit controlled by the pulses and in place of the frequency controlled oscillator.
Patent GB-543191-A (GB)
Title: Improvements in and connected with moving contact carriers for automatically released electric switches
IPC: H01H83/22
Filed: 1940-08-12
Abstract: 543,191. Electrically - released switches. CRABTREE & CO.. Ltd., J. A., McLOUGHLIN, H. F., and HILL, W. E. Aug. 12, 1940, No. 12865. [Class 38 (v)] In an automatically released switch the base and the carrier of the armature and moving contacts have inter-engaging integral hinge-like .parts upon which the carrier pivots without the employment of separate recuring parts. The carrier a has bead-like formations b which rest in hooks e on the base f, the two being kept in engagement by a spring c bearing on an arcuate upper surface of the carrier which may have a stop projection g to limit the outward movement. The moving contact k is clipped on the carrier by a pin l through the arms of a U-shaped part m, spring-retained in position. This contact strip k on first movement of the carrier is freed at its lower end from the fixed contact j by a "micro-gap," further movement taking the upper end away from the upper fixed contact j' for isolation. The carrier a may, in closing, bear on a spring or pneumatically pressed plunger at its upper end, to operate further contacts and to prevent too sudden closing. Specification 543,189 is referred to.
Patent GB-1364774-A (GB)
Title: Filament crimping devices
IPC: D02G1/08
Filed: 1972-03-21
Abstract: 1364774 False twisters SPINNER OSAKEYHTIO 21 March 1972 [2 July 1971] 13064/ 72 Heading D1D Thermoplastic filament 3 is heated to a plastic condition and false-twisted i.e. crimped by contact with rapidly moving endless belt 1 at a point 4 at which the belt makes a sharp bend. The bend 4 prevents the filament 3 being displaced by the belt 1, there being a high coefficient of friction between belt and filament. As shown bend 4 is formed by rolls 5. In other embodiments the bend is formed by a single low friction roll (6, Fig. 3, not shown), by tension in filament 3, by the use of an air nozzle (8, Fig. 5, not shown) which supply compressed air that pushes the belt into a bend, or by the use of a magnet and a magnetised belt. In the last embodiment the belt preferably comprises a metal powder in a plastics matrix and the drive pulley 2 is magnetic, thus improving the friction between belt and pulley. Preferably the path of contact between filament 3 and belt 1 is curved.
Patent GB-931494-A (GB)
Title: Improvements in or relating to devices for raising and lowering windows
IPC: E05F11/38
Filed: 1961-04-12
Abstract: 931,494. Clutch combinations. FABBRICA ITALIANA MAGNETI MARELLI S.p.A. April 12, 1961 [April 12, 1960; March 11, 1961], No. 13123/61. Class 80 (2). A double clutch arrangement for vehicle window winding mechanism alternatively power and hand operated, comprises a shaft 1 fast with a pinion 3 and clutchable to a manually operable handle 16 by dog clutch teeth 18, 19 engaged by pushing the handle to the right, and clutchable to a worm-wheel 5 forming part of a worm reduction gear driven by an electric motor by clutch balls 14 housed in slots in the shaft 1 and engageable with recesses in a hub of the worm-wheel 5. A rod 7 is fast with the handle 16 and extends through the hollow interior of the shaft 1, and in its rightward position a reduced part 7<SP>1</SP> of the rod registers with the clutch balls to disengage the power drive. Rod 7 is biased to the left by a spring 8. The output pinion 3 may be replaced by a pulley. Instead of dog clutch teeth 18, 19 the handle 16 may have a square or other section shank fitting in a correspondingly shaped socket provided at the end of the shaft 1. In a modification (Fig. 7, not shown) the handle can slide axially relative to the rod 7 and a reduced circular section extension of the handle shank bottoms in a bore in the rod 7 so that it is shifted axially when the handle is pushed in. A spring-pressed ball in a circular section part of the shank engages a ledge in the bore of the driven shaft 1 to prevent undesired complete removal of the handle when its shank is disengaged from the socket.
Patent GB-183288-A (GB)
Title: An internal combustion pump and pressure chamber with improved reversible water turbine
IPC: F03B13/08
Filed: 1921-05-10
Abstract: 183,288. Brander, A. May 10, 1921. Direct explosion apparatus.-A power plant comprises a pump of the internal-combustion type, which delivers water to a constant pressure chamber, from which the water is supplied to the nozzles of a reversible turbine. The pressure generated in a combustion chamber a forces water. from a pump barrel d into the lower of two receivers, against the pressure of air contained in the upper one. The pump is fitted with a float c to regulate both the water supply from a chamber b, and the exhaust through ports f. The pressure is also used to actuate a charging pump h, and an air-compressing pump n. The pump h automatically supplies the combustion chamber a with explosive mixture, while the air pump maintains the air pressure in the upper receiver, The water in the receiver runs a jet-wheel, and is then pumped into a water-cooler, from whence it flows to the chamber b.
Patent GB-1145565-A (GB)
Title: Improvements in or relating to guidance control systems
IPC: F41G7/30
Filed: 1966-03-25
Abstract: 1,145,565. Radar. ALBISWERK ZURICH A.G. 25 March, 1966 [26 March, 1965], No. 13202/66. Heading H4D. A system for producing control signals to steer a body R in relation to a body Z comprises direction-finders PR, PL providing at least two co-ordinates of bodies R, Z respectively, the co-ordinate data storage in units Gfr, Gfl, and means to select from the data in store Gfl a course point having a predetermined one coordinate which has a given relationship with the similar co-ordinate of a corresponding point in the course of body R, the given relationship satisfying an invariance condition developed in the Specification, and the control signals are computed from the relationships between the remaining co-ordinates. The invention is based on the principle of the horopter (i.e. the locus of the points in space which are projected on corresponding points of the retinas of the eyes), Figs. 1 to 5 (none shown). If the finders PR, PL are tracking radars yielding corresponding polar co-ordinates (rl, al, #l), (rr, αr, #r) of range r, azimuth a and elevation #, a quantity (rl/rr) is produced in a device Kr. Initially an invariance condition (rl/rr)<SP>#</SP>, where the dot signifies differentiation with respect to time, will not be satisfied and a signal is fed to a control stage LS to cause " run back " reading of store Gfl until a course point is found where it is satisfied. The remaining co-ordinates (a, #) of the two course points (one being the instantaneous position of rocket R) are subtracted in respective devices Ka, K#, the outputs representing #α and ##are differentiated with respect to time to form (#α)<SP>#</SP>, (##)<SP>#</SP> and the latter are fed to a radio transmitter Uem as guidance command to rocket R. The search for two corresponding points is repeated and new guidance commands are issued until instantaneously stored course points of rocket R, in conjunction with the earlier stored course point of aircraft Z satisfy the invariance conditions (range ratio)' = 0, (azimuth difference)<SP>#</SP> = 0, and (elevation difference)' = 0. The two bodies are then on a collision course. The system may be arranged, by a timing adjustment, to effect anti-collision.
Patent GB-1191998-A (GB)
Title: Parameter Measurement for Railway Classification Yards
IPC: B61L17/00
Filed: 1969-03-13
Abstract: 1,191,998. Hump yard control. WESTING- HOUSE AIR BRAKE CO. 13 March, 1969 [13 March, 1968], No. 13299/69. Heading B7H. In a hump-type classification yard, trackside measuring apparatus is provided for determining car length, the number of axles per car, cut length and the number of vehicles per cut. The apparatus comprises a light source and photo-cell detector PC disposed at vehicle coupler height and a wheel detector WD which act to gate the transmission of Doppler radar pulses, each equal to a fixed amount of car movement and obtained from an existing radar unit used to measure vehicle rolling resistance, to a counter circuit in a digital computer. Entry of a vehicle into track circuit AT returns all the counter apparatus to its initial state and when the vehicle coupler obscures the light source, Doppler pulses are gated to the counter circuit. The count is first sampled S1 when the vehicle's first axle is detected and then sampled S2 as the next axle is detected to provide a measure Dl of the distance between axles. Subsequent sampling provides measurements D2 &c., from which the axle count per vehicle can be determined e.g. if D1 differs as shown from D2 then the vehicle must have 4 axles and if D1 equals D2 but differs from D3 then the vehicle must have 6 axles. In addition the count from the coupler to the last axle of the first bogie, in this case S2, and the count from the coupler to the first axle of the second bogie, in this case S3, can be added to provide a count indicating the length of the car. If at this latter count the light source again actuates the photo-cell then the cut is a one-vehicle cut, however if the light source remains obscured the cut includes two or more vehicles and the dimensions of the subsequent vehicles are determined in the manner described.
Patent GB-1394921-A (GB)
Title: Book escapement mechanism
IPC: H01L21/66
Filed: 1973-03-20
Abstract: 1394921 Feeding sheets SMYTH MFG CO 20 March 1973 [26 May 1972] 13299/73 Heading B8R [Also in Division B6] A device for feeding stitched books whose spines are coated with adhesive to a casing-in machine comprises a first conveyer 8, a second conveyer 4 periodically tiltable relative to the first to break any adhesive joint between the spines of respective books and to cause a foremost book to abut and be halted aginst a support plate 7, this book being fed on to the machine, when the tilting has ceased, by resiliently urged rollers 6 which accelerate the book to a speed greater than that of a subsequent book on the second conveyer 4. The tilting of the second conveyer 4 is effected by a pneumatic cylinder 3 controlled by a cam driven by the machine. Adjustable side guides 5 are provided. The rollers 6 may have peripheral projections.
Patent GB-695698-A (GB)
Title: Improved freezer tray
IPC: F25C1/24
Filed: 1952-05-27
Abstract: 695,698. Ice-making. GENERAL MOTORS CORPORATION. May 27, 1952 [June 29, 1951], No. 13358/52. Class 29. A domestic ice-tray 11 with a prising handle 30 pivoted on a horizontal pivot pin 20 and having a lower cam surface 35 which breaks the ice bond between the tray and the supporting surface when the handle is swung downwardly, has a resilient rubber or like member 40 mounted upon the pivot pin and arranged yieldably to retain the handle in its upper position. A bracket 15 welded to the tray supports the pivot pin 20 and the handle 30 is of moulded plastic, the cam surface 35 being eccentric to the pin. The rubber member has one end 43 engaging the tray and the other end 41 pressing against a shoulder 42 of the handle. In a modification the handle is of metal bent to S-shape with a bent-up eye engaging.the pivot pin and the rubber member has a shouldered enlargement engaging the handle. The rubber members are cut from extruded stock.
Patent GB-1444476-A (GB)
Title: Gas dissolving system
IPC: C02F3/20
Filed: 1974-03-26
Abstract: 1444476 Dissolving gas in liquids BOC INTERNATIONAL Ltd 18 March 1975 [26 March 1974] 13364/74 Heading B1C In a method of dissolving gas in a liquid for example oxygen in water, 'the gas is supplied to a conduit 4 from which extend a plurality of filament type flexible tubes 2 which are made from semi permeable or micro-porous material, the tubes being immersed in the liquid and the gas supplied under pressure whereby as the gas passes through the permeable or microporous material micro-bubbles are formed and the gas therein becoming dissolved in the liquid. The tubes are preferably less than 5 mm diameter and may be up to 5 metres in length depending on the aerating requirements of the liquid and the nature of the system. In operation in rivers or sewers and other industrial effluent channels, the gas pressure being preferably 5 p.s.i. or above.
Patent GB-1336810-A (GB)
Title: Selectro keyboards
IPC: H01H13/70
Filed: 1972-03-22
Abstract: 1336810 Retractive switches HAGENUK 22 March 1972 [6 April 1971] 13375/72 Heading H1N A selector keyboard comprises a plurality of push-buttons 1 each of which operates a movable contact 4, also there is another movable contact 6 which is associated with all the push-buttons 1 such that when any push-button 1 is depressed it not only operates its associated contact 4, but also, if depressed beyond a certain point, triggers the movement of contact 6, which movement then continues independently of the push-button while the push-button remains beyond the given point. As shown, depression of any push-button 1 moves a plate 3 to which one end of each of springs 5 is connected to snap springs 5 overcentre to move contact 6. Plate 3 is returned by spring 7. Push-buttons 1 are interlocked so that only one can be depressed at a time. The fixed contacts are all carried by a board 13, Fig. 4 (not shown) which is interchangeable with other boards carrying a different arrangement of fixed contacts and also terminals 17, Fig. 4, and a cover 11, Fig. 4, base 9 and board 13 are fastened by slotted lugs 12, Fig. 4 and a snap projection and slot 16, 15, Fig. 4.
Patent GB-661323-A (GB)
Title: Improvements in or relating to press knives, clicking knives and similar cutters
IPC: C14B5/02
Filed: 1949-05-19
Abstract: 661,323. Making machine knives. MONTAGU KNIFE & CUTTER WORKS, Ltd., and LEWIS, W. G. May 16, 1950 [May 19, 1949], No. 13382/49. Class 83 (ii). [Also in Group VIII] The reduced ends 9 of one or more stay bars or bolts 8 are inserted through apertures 10 in the frame of a press knife or the like and welded to the frame at the outer face thereof. The stay bar or bars may be of uniform section throughout.
Patent GB-1130698-A (GB)
Title: Vertically adjustable underfloor trench
IPC: E04B5/48
Filed: 1967-03-22
Abstract: 1,130,698. Releasable fastenings. H. H. ROBERTSON CO. 22 March, 1967 [6 April, 1966; 19 Dec., 1966], No. 13413/67. Heading E2A. [Also in Division H2] An underfloor conduit adapted to be rigidly embedded in concrete 39 has a base pan 14, vertically adjustable side rails 15 and a detachable cover plate 16 having a projection 40 to resiliently engage wall element 41. Prior to embedment, the cover plate and side rails may be fastened temporarily together e.g. by screws (34) (Fig. 4 not shown) to form a unitary sub-assembly. The projection 40 may be a resilient band which may run the entire length of the plate and may have a mounting flange 42 welded to the cover plate; other embodiments of this projection are also illustrated (Figs. 6, 7 and 9 not shown).
Patent GB-664856-A (GB)
Title: Stands for casseroles and like dishes
IPC: A47J47/16
Filed: 1949-05-20
Abstract: 664,856. Stands. WIGGIN, W. C. B. May 5, 1950. [May 20, 1949] No. 13461/40. Class 128. A reversible stand made, e.g. of wire or strip metal, has two parallel but differently sized hoops 1 and 2 each of which can support a correspondingly shaped casserole or dish 4 by its rim 6. The hoops may be connected by distance-pieces 3 welded to the hoops and extending beyond them to form feet. The distance-pieces may be C-shaped or may have their middle parts bowed outwards so that they can be used as handles. The distancepieces may be sheet metal panels to which handles may be attached. The stand may be in the form of a sheet metal tube with differently sized ends formed or provided with feet and handles.
Patent GB-134952-A (GB)
IPC: H02K21/22
Abstract: 134,952. Jensen, V. C. F., and Tilney, M. J. E. Nov. 18, 1918. Magneto-electric machines; casings. - A magneto-electric machine comprising a rotating permanent magnet b' and a stationary armature c is enclosed in a dust-proof casing the end cap a<3> of which is detachable as a unit with the armature and field magnet. The driving-spindle b passes through a boss a<4> in the end cap a<2> and is secured to the magnet by a screw-thread b<4>. The armature is supported at one end by the spindle b, and at the other end by the cap a<3>. The end part c<1> of the armature is formed with a hollow boss c<5> which extends through the end cap a<3>.
Patent GB-550578-A (GB)
Title: Improvements in wheels for aircraft and other vehicles
IPC: B60B3/00
Filed: 1941-10-21
Abstract: 550,578. Wheels for aircraft &c. DUNLOP RUBBER CO., Ltd., and BUTLER, H. J. Oct. 21, 1941, No. 13504. [Class 144 (i)] Heat insulating material 4 is located between the body 1 of a brake wheel and a separately formed tyre retaining flange 3 secured to the body. The invention is applicable especially to aircraft wheels in. which the body is a hub shell having internal brake recesses 2. The material 4 may be secured by plates 5 shaped to engage bevelled notches in the edges of the material and secured to the body by screws 5a, or the material may be in segments secured directly by screws. The tyre flange may be retained by a split spring ring 7 with a collar, as described in Specification 539,905. In hub shells having a brake drum at each end the material may extend along the body as shown at 9, the middle part of the body being of reduced diameter to provide an .insulating air space 11.
Patent GB-149470-A (GB)
Title: Improvements in or relating to money tills
IPC: G07G1/00
Filed: 1919-05-29
Abstract: 149,470. Braginton, A. J. May 29, 1919. Tills.-A money till comprises steps or platforms f, spring clips g for holding paper money upon the steps, and trough-like compartments h with glass fronts i situated at the front part or " riser " of one or more of the steps. The glass fronts are removably held in grooves j at each end of the till by buttons k. Divisions l are preferably provided between the clips, and the spaces thus divided may be marked to show the notes or coins which should be placed therein.