baber/WOPTO huggingface dataset:
Patent GB-1205891-A (GB)
Title: Improvements in or relating to capstans for tape transport apparatus
IPC: G11B15/295
Filed: 1968-02-01
Abstract: 1,205,891. Tape transport apparatus; capstans. NEWELL INDUSTRIES Inc. 1 Feb., 1968 [9 Feb., 1967], No. 5133/68. Heading G5R. The resilient periphery 19 of a capstan 13 for edge-driving tape rolls 11, 12 is shaped so as to exert a greater pressure on the edges of the tape than at the centre to reduce the tendency of the roll to develop a concave rim. As described, a polyurethane layer 19 is moulded on to an aluminium hub 17 and is ground until it projects slightly axially beyond the hub when the grinding tool is removed (Fig. 2, not shown). Flanges 27, 28 are then screwed to the hub so as to form bulges 25 in the layer 19 at its ends.
Patent GB-511574-A (GB)
Title: Improved process of producing photographic multi-colour pictures
IPC: G03C7/26
Filed: 1938-02-18
Abstract: 511,574. Colour photography. GROVES, W. W. (I. G. Farbenindustrie Akt.-Ges.). Feb. 18, 1938, No. 5138. [Class 98 (ii)] In printing multi-colour master images on to multi-layer material, there is used in addition to the normal white copying light, one or more additional coloured light sources, e.g., blue, green and red light sources, whereby colour faults are compensated. The necessary correction may be determined by a test development. The exposure material and printing material may be multi-layer material having several silver halide emulsion layers containing colour formers which are developed, directly or by reversal, by means of colour development, azocoupling or oxidation. Specifications 436,587. 458,400, 465,823, 468,946, 479,838, 481,501, 483,000, 484,698, 488,048, 488,853, 489,093, 489,161, 489,164, 489,274, 491,958, 491,959 and 492,523 are referred to.
Patent GB-329034-A (GB)
Title: Improvements in or relating to portable wireless sets
IPC: H04B1/08
Filed: 1929-02-15
Abstract: 329,034. Holbeach, W. M. Feb. 15, 1929. Loud-speakers. - A portable wireless set comprises a hornless loud-speaker which is protected by the lid or door of the cabinet, when closed, and is mounted so as to be movable independently of the door when open. The loud-speaker 4 is hinged to the side of the lid 1 remote from the lid hinge 6. In modifications, Figs. 1 and 3 (not shown), the loud-speaker is hinged coaxially with or adjacent the lid hinge, and to the main body of the cabinet respectively.
Patent GB-733217-A (GB)
Title: Improvements in the extrusion of metals
IPC: B21C33/00
Filed: 1953-02-24
Abstract: 733,217. Extruding. PECKINEY COMPAGNIE DE PRODUITS CHIMIQUES ET ELECTROMETALLURGIQUES. Feb. 24, 1953 [Feb. 26, 1952], No. 6174/53. Class 83 (4). In the extrusion of metals such as zinc, tin, aluminium or uranium, which, at the temperature of extrusion, react with air or with the metal walls of the billet container 6, the billet 4 is enclosed in a protective shell 1 before charging it into the container and is pressed out of the shell during the extrusion. The shell may be of a material which does not react with the billet metal, or its internal walls, and if necessary the surfaces of the extrusion die and dummy block may be coated, by spraying, with a protective material such as powdered graphite. Alternatively the annular space between the billet and shell may be filled with a pulverulent material such as alumina or graphite. The shell, Fig. 3, may have spaced walls 11, 12 separated by a granular material 13, such as alumina, which acts as a heat insulator and assists in maintaining the shape of the shell. An assembly consisting of the shell 1, extrusion. die 3, stainless steel die block 2, and dummy block 5 may be cheated in a furnace, in an inert atmosphere such as argon, and then inserted into the container; the billet is then pressed out of the shell and extruded through the die from which it passes into a water-coated receptacle 8 containing an inert atmosphere such as argon. The billet may alternatively be heated in the container. The assembly is supported in the press by keys 9 which, after the extrusion, are withdrawn by hand levers 14 whereby the assembly falls into an enlarged parf of the receptacle 8 against a spring 10. In the extrusion of uranium the shell is of stainless steel coated with or containing powdered graphite, and the dummy block and die are of tungsten-carbide also coated with graphite. Examples are given of the dimensions of the uranium.billet and the shell and also of the extrusion temperatures.
Patent GB-212088-A (GB)
Title: Improvements in or relating to window-blind and other roller supports
IPC: E06B9/50
Filed: 1923-02-22
Abstract: 212,088. Aldhouse, W. S., Aldhouse, A. P., and Aldhouse, C. H., (trading as Aldhouse & Sons, J. S.). Feb. 22, 1923. Roll holders.-In an end support for the roller of a roll of velvet mounted in a box and comprising a slotted box-like part 4 into which the end of the roller is slid against the action of a spring 6 which reacts to prevent accidental removal of the roller when the end of same has reached the lower end of the slot 5, means are provided for retracting the spring 6 to allow withdrawal of the roller. Said means comprises a slidable member 7 arranged within the box-like part 4 and having a curved or cam surface 11 adapted when the member 7 is slid in one direction to force the spring 6 into its retracted position, as shown in Fig. 3. Movement in the opposite direction allows the spring to return to its normal or projected position. Shoulders on the member 7 prevent its complete withdrawal from the box-like part 4.
Patent GB-326633-A (GB)
Title: Improvements in and connected with hopper feeders for textile material
IPC: D01G23/00
Filed: 1929-02-16
Abstract: 326,633. Platt Bros. & Co., Ltd., and Wilkinson, H. Feb. 16, 1929. Feeding openers &c.-A hopper feeder for cotton &c. operating between machines for cleaning, opening, lap-forming, &c., comprises a rear feed reserve box receiving the fibre and a front compartment, the box and the compartment having each a pivoted and weighted feed control board. In the form illustrated, the fibre, pneumatically fed by a condenser 16 with a fan 13, falls on a lattice 15 at the bottom of the feed reserve boy which passes it to the lattice 14 of the front compartment from which it is raised by a spiked lattice 1 and delivered to a lattice 5 supplying the succeeding machine. An excess of fibre in the feed reserve box depresses the control board 7 to operate a belt-fork on a preceding machine or a valve in the condenser supply pipe to curtail the supply. The control board 6 in the front compartments operates a belt-fork 21 to stop the lattice 15. Preferably the two boards 6 and 7 are adjustably interconnected to move together, or with limited lost motion due to a slot 35<a> in a lever of the connecting mechanism. A ribbed roller 38 consolidates the fibre and ensures an even feed. A hood 11 connected by a pipe 12 to the fan 13 may be provided for dust extraction.
Patent GB-888357-A (GB)
Title: Improvements in starting means for combustion engines
IPC: F02N15/06
Filed: 1960-02-15
Abstract: 888,357. Turning - gear. ALLMANNA SVENKSA ELEKTRISKA A.B. Feb. 15, 1960 [Feb. 17, 1959], No. 5259/60. Class 7(5). Means for starting an internal-combustion engine comprises a starting motor with an axially movable pinion 2, Fig. 2, for temporary engagement with an engine starting ring gear 1, characterized in that a shoulder, e.g. a circular disc 4 is provided on the shaft of the pinion and in that a blocking flap 5 hinged at 6 is so arranged that when the pinion 2 is in its limiting engaged position the flap 5 falls down to block the pinion in that position and also the flap is so arranged in relation to the shaft and its direction of rotation that the friction between the flap and the shoulder turns the flap back into its original position when the pinion is put out of engagement, e.g. by a spring, when the engine has started. On closing a contact 10, Fig. 4, a current flows through an auxiliary field winding 9 which produces a magnetic field that moves the pinion 2 into engagement with the ring gear 1. The flap 5 then falls into its blocking position, when a contact (not shown) interrupts the circuit through the winding 9. To start the engine a circuit breaker 11 is closed so that a current flows through a field winding 8 and the armature. When the engine comes to a standstill the contact 10 is operated and the pinion again engages the ring 1 and remains there until the engine is started again.
Patent GB-1448190-A (GB)
Title: Holographic optical element
IPC: G02B5/32
Filed: 1975-02-07
Abstract: 1448190 Holographic lens and system HUGHES AIRCRAFT CO 7 Feb 1975 [8 Feb 1974] 5338/75 Heading G2J The design of a holographic lens is disclosed with reference to the parameters of an optical system in which an object is to be imaged at a particular location and the method of obtaining a holograph with the necessary interference pattern is given.
Patent GB-1095021-A (GB)
Title: [3,2-c]pyrazolo steroids
IPC: A61K31/58
Filed: 1965-02-08
Abstract: Novel steroids of the formulae <FORM:1095021/C2/1> (wherein X is H or halogen; R1 is H, b -OH, b -Cl or =O but is only Cl when X is Cl, and is only H when X is H; R2 is H, a -F or a -CH3; R3 is H, a - or b -CH3, a -F or =CH2; R4 i alkyl; R5 is alkyl, cycloalkyl, aralkyl, aryl or heteroaryl and may be halogenated; A and B are H, alkoxy, alkyl or aryl (but not both alkoxy) or may be joined in an alkylene chain and R6 is CO2H, CO2 alkyl, CH2OH or CH3) and the 4,6-pregnadieno and 5a -pregnano analogues thereof are prepared by alkylating the 21-unalkylated compounds (B) which may also be N-unalkylated (in which case N-alkylation also occurs) and, if desired, reacting the products with an acidic reagent to form compounds (A). The starting materials are prepared by reaction of the corresponding compounds with a free dihydroxy acetone side chain with compounds of the formula (R0O)2C.A.B, wherein R0 is alkyl.  In the hydrolysis of (B) to (A), if hydrochloric acid at room temperature or oxalic acid with heating is used a mixture of 17a - and 21-mono-formates is formed; they can be separated by standard methods, or the 17-mono-esters can be converted to the 21-monoesters by refluxing with p-toluene sulphonic acid in benzene; both mono-esters can be hydrolysed to the free ols by heating with hydrochloric acid.  Acid-addition salts of the products are described.  11b ,17a ,21 - Trihydroxy - 20 - oxo - 5a  - pregnano-[3,2-c] pyrazole is prepared by the sequence 11b ,17a ,21 - trihydroxy - 4 - pregnene - 3,20-dione--> 17a ,20: 20,21 - bismethylenedioxy-11b  -hydroxy - 4 - pregnen - 3 - one --> corresponding 5a -pregnane (the foregoing reaction steps can be reversed) --> 17a ,20: 20,21-bismethylenedioxy - 11b  - hydroxy - 2 - hydroxymethylene 5a  - pregnano - [3,2-c] pyrazole --> required product; 11b ,17a ,21 - trihydroxy - 51 - methyl-20-oxo - 21 - phenyl - 4 - pregneno - [3,2-c] pyrazole is prepared from the first intermediate above via 17a ,20: 20,21 - bond - 2 - ethoxalyl - 11b  - ethoxalyloxy - 4 - pregnen - 3 - one, 21 - phenyl - 17a , 20: 20,21 - b.m.d. - 11b  - ethoxalyloxy - 51 - ethoxycarbonyl - 4 - pregneno - [3,2-c] pyrazole, 51-hydroxymethyl compound, 51 - tosyloxymethyl compound and 51-methyl compound and is subsequently converted to the 21-acetate.  The 51-carboxy compound is prepared by hydrolysis of the ethyl ester referred to above and subsequent removal of the protecting group.  Similarly, the protecting group may be removed from the 51-hydroxymethyl compound.  The anti-inflammatory steroids of the invention may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-285796-A (GB)
Title: Drawing mechanism for ring spinning frames
IPC: D01H5/46
Filed: 1928-02-20
Abstract: 285,796. Schleifer, C., and Hofer, M. Feb. 19, 1927, [Convention date]. Rollers and roller heads.-In ring spinning frames for cotton and other textile fibres wherein the front drawing- roller is set tangential to the axis x, x of the spindle and an auxiliary top pressing-roller, which may be covered, contacts with the drawing-roller at about the tangential point, the ordinary top front roller 11 and the auxiliary roller 12 are pressed upon the bottom roller 1 by the weight hook through a single saddle 14. The inclination a<1> of the roller is reduced, for example to a half or less than the usual, whereby the friction between the top rollers and the faces 3<11>, 4<11> of the nebs is reduced. The rollers 11, 12 may be covered with elastic material, or may be used with an endless band 15, Fig. 3, of elastic material. The Specification as open to inspection under Sect. 91 (3) (a) comprises also an arrangement wherein the roller 12 is fluted to engage the flutes of the roller 1. This subject-matter does not appear in the Specification as accepted.
Patent GB-836775-A (GB)
Title: Electrically operated drive device
IPC: H02K7/10
Filed: 1955-02-23
Abstract: 836,775. Rotor driving arrangements. RAE, T. L. May 23, 1956 [Feb. 23, 1955], No. 5381/55. Class 35. A drum 2 is keyed to its shaft 21 at 24 and its gear 26 is driven from the motor shaft 16 by gears including pinion 25 and gears on three lay shafts 4A. The sleeve 23 on the right-hand end of the drum is rotatingly supported while end cover 13 of the drum rotates about a sleeve 6 integral with the stator and carried by a fixed support. Lubricating arrangements are described. The drum shaft could be supported solely by the sleeve 23. The drum may be for a conveyer or may be used as a pulley. The construction enables the motor and gearing to be readily withdrawn from the drum.
Patent GB-916221-A (GB)
Title: Method of regulation of the field intensity
Inventor: KOVANIC PAVEL
IPC: G21C17/10
Filed: 1959-02-17
Abstract: 916,221. Automatic control systems. ZAVODY V. I. LENINA PLZEN, NARODNI PODNIK. Feb. 17, 1959 [Feb. 18, 1958], No. 5405/59. Class 38 (4). [Also in Group XL (b)] In a system in which the intensity of a source of radiation 1 is controlled by an unspecified detector 2 the output of which is compared with a fixed reference quantity 5 to provide an error signal effecting the regulation; the intensity is made to follow an unspecified programme by moving the detector 2 relative to the source 1 by a servomotor 3 controlled by an unspecified device 4. Thus, moving the detector away from the source will cause the intensity to be increased, and vice versa. The output of the detector 2 may also be varied directly in accordance with the programme in an undisclosed manner. If the error signal is large, the programmed movement of the detector may be slowed down in an undisclosed manner. The intensity of the source 1 may be controlled either by moving the source or screening it. The source may be a nuclear reactor, uranium fission products, or a heated body. Specifications 914,178 and 916,222 are referred to.
Patent GB-150984-A (GB)
Title: Improvements in ranges
IPC: F24C15/18
Filed: 1920-02-23
Abstract: 150,984. Landers, Frary, & Clark, (Assignees of Lamb, J. F.). Sept. 10, 1919, [Convention date]. No Patent granted (Sealing fee not paid). Cooking-ranges.-A range has a broiler drawer 17, Figs. 1 and 2, removably located in a chamber 30 below a heater, such as an electric heater 31, the drawer being adapted to retain grease and having a front wall which closes the chamber. The drawer has the same height and width as the chamber, and is cut away at the end to clear the heater. A pan may be fitted in the drawer by means of bevelled cleats. A broiler grid is supported on lugs arranged in pairs at different heights in the drawer. The sheet-metal top 11 of the range has a depending apron, hot-plates 13, and a back plate b supporting an oven c. According to the Specification as open to inspection under Sect. 91 (3) (a), a water-heater 19, a cooking or other vessel f, and a lamp 22 may be supported on the back plate, and the oven may be arranged at one side of the range. The oven door has a perforated arc-shaped rest 26, Fig. 3 (Cancelled), on which a cooking-pan may be placed when removed from the oven. This subjectmatter does not appear in the Specification as accepted.
Patent GB-313037-A (GB)
Title: Improvements in and relating to typographical composing machines
IPC: B41B11/06
Filed: 1929-02-19
Abstract: 313,037. Intertype Corporation, Assignees of Sperry, S. E.). June 5, 1928, [Con. vention date]. Magazines for type-bar-making machines.- In machines of the kind described in Specification 14582/90, which have a shiftable column of magazines, means are provided for tipping upwards the lower or forward ends of the magazines so that they will clear the upper ends of the escapement-reeds, after which the magazines are shifted forwards or backwards in a substantially straight line to effect a change of magazine. The magazines 5, 6, 7 are preferably mounted in a siugle unit-frame 8, the upper magazines 5, 6 having individual base-frames 5b, 6<b>, having spacing-lugs 5c, 6c which may be secured together by screws. The frame 8 has on each side inclined supporting-tracks 9, 10, the upper tracks 9 resting on rollers 11, which are mounted on ball or roller bearings in the machine-frame 1. Each track 9 has stops 13, 14 at its ends, to limit its motion over the rollers 11, and depressions 9a corresponding to the operative positions of the different magazines. The lower tracks 10 ride on rollers 15, which are journaled in crank-arms 17 on a shaft, which can be rocked by means of a handle 20, so as to raise and lower the rollers, and, with them, the lower ends of the magazines. The tracks 10 are provided with locating-notches 10c, which are engaged by dogs on the arms 17, when the magazines are in the lower position. When the magazines are raised, the magazine-entrance 3 is simultaneously swung clear of the magazines by a link 24 connected to the handle 20. The magazines are shifted forwards and backwards by means of a handle 26, having arms 28, which are connected by links 29 to the tracks 9. The weight of the magazines is counterbalanced by springs 30, surrounding rods 32 and bearing against arms on the shaft of the handle 26. In a modinoation, the upper tracks 9 are omitted, and rollers carried by the magazine-frame run on inclined tracks on the machine-frame.
Patent GB-850922-A (GB)
Title: Composition for floor tile and the like and articles thereof
IPC: C08K7/04
Filed: 1957-02-19
Abstract: A composition comprises a mixture of between 15 and 75 parts by weight of a resin binder material consisting of a chlorinated polyethylene containing 25 parts by weight of a plasticizer for the chlorinated polyethylene, not more than 50 parts by weight of a "short" fibre filler, not more than 50 parts by weight of a "coarse" filler, not more than about 75 parts by weight of a "fine" filler and not more than 8 parts by weight of a pigment. The expression "short" as applied to the fibre filler means fibres having a length of approximately 1/4 to 3/16 of an inch, the expression "coarse" as applied to the filler means irregular shaped particles in the range of 0,1 to 0,5 mm., whilst the expression "fine" means a ground material which will pass at least through a 325 mesh U.S. sieve.  The chlorinated polyethylene may be obtained by chlorinating polyethylene of molecular weight 40,000 to 75,000, density ,94 to ,96, and melting point 125 to 135 DEG C.  Fillers mentioned are whiting (powdered calcium carbonate), asbestos shorts, titanium dioxide, and sand.  The preferred plasticizer is dioctyl phthalate.  The composition may also contain a stabilizer such as dibasic lead phosphite.  The compositions are used for making tiles. Specification 834,905 is referred to.
Patent GB-576184-A (GB)
Title: Improvements in or relating to luggage carriers for motor cars having a saloon body
IPC: B60R9/04
Filed: 1944-03-28
Abstract: 576,184. Luggage carriers for vehicles. TANDY, R. March 28, 1944, No. 5668. [Class 103 (ii)] A luggage carrier for a motor car having a saloon body comprises a member which spans across the roof opening and is permanently or detachably secured to the roof in such a manner that the luggage can be carried within the roof opening. As shown in Fig. 1, the luggage carrier comprises a framework including transverse bars 1, 2 hinged at 6 and adapted to grip the edges 3 of the roof opening. The gripping means 7, 8 may have the lower member 8 pivoted or fixed to the bars 1, 2 and may be lined with felt, rubber, &c. The hinge 6 may be locked by a pivoted link on the member 1 engaging a pin on the member 2. The transverse bars 1, 2 may be integral and the carrier is then locked in position by the pivoted member 8 or they may be telescopic for adjustment to openings of various widths. In a further modification the luggage carrier is adapted to be permanently secured in position across the opening and on the underside of the roof, whereby the sliding roof can be opened and closed with the carrier in position, the sliding roof being opened to accommodate the luggage.
Patent GB-285860-A (GB)
IPC: G01N27/90
Filed: 1928-02-23
Abstract: 285,860. Federated Engineers Development Corporation, (Assignees of Kinsley, C.). Feb. 23, 1927, [Convention date]. Electromagnetic switches.-A relay 62 closes contacts 75, 76 in a circuit containing a make- and-break device 72 and a coil 69 having an armature 70 by means of which a tapper 67 is caused to tap a relay R<1> close to the contacts 48 so as to ensure prompt separation of the contacts 46, 48.
Patent GB-669647-A (GB)
Title: Apparatus for amplifying a composite signal
IPC: H04N5/16
Filed: 1949-03-02
Abstract: 669,647. Television. RADIO CORPORATION OF AMERICA. March 2, 1949 [March 11, 1948], No. 5740/49. Class 40 (iii). [Also in Group XL (c)] During amplification of a, signal comprising picture signal, blanking and synchronizing components in which the synchronizing signal amplitude bears a selected relation to the black level of the picture signal, any shift in the black level is compensated by deriving a voltage proportional to the peak-to-peak amplitude of the signal and using it to control the black level of the amplified signal. As shown, Fig. 2, an output voltage taken from the anode load 41 of a cathode follower 32 forming the final stage of video signal amplifier, which may be feeding a coaxial cable, is fed through a condenser 43 to a rectifier 42. Positive pulses at the anode of valve 32 produced by the negative going synchronizing and blanking pulses in the input cause diode 42 to conduct and charge condenser 35 which has a shunt leakage resistor 34. The voltage developed across resistor 34 is proportioned to the peak-topeak amplitude of the input signal, and a second diode 45 prevents condenser 43 from becoming charged so that it acts only as a low-impedance A.C. coupling. The control voltage is fed back to the grid of amplifier 32 to maintain the black level at a selected point on the amplifier characteristic. If the input signal to amplifier 32 has positive going blanking and synchronizing pulses, the diodes 42, 45 are reversed. In a modification, Fig. 3, not shown, a part of the input to the final amplifier is fed to an auxiliary amplifier feeding a rectifier which provides a control voltage for the final amplifier. In this case the output is taken from the anode of the final amplifier.