baber/WOPTO huggingface dataset:
Patent GB-674936-A (GB)
Title: Improvements in methods of, and systems for, obtaining a standard low frequency
IPC: H03L7/26
Filed: 1948-11-16
Abstract: 674,936. Automatic frequency control systems. RADIO CORPORATION OF AMERICA. Nov. 16, 1948 [Feb. 7, 1948; Feb. 13, 1948], Nos. 29779/48 and 29780/48. Class 38 (iv). A low-frequency of high precision is obtained by stabilizing an ultra-high-frequency by means utilizing the molecular resonance frequency of a gas and then applying this oscillation to frequency dividers until the desired low-frequency is obtained. As shown, an oscillator 10A is stabilized at the resonant frequency of a gas in a cell 11C by a method similar to that described in Specification 658,198. A further oscillator 10B is stabilized at the resonant frequency of a gas in cell 11D and their outputs are impressed on a mixer 13. The difference frequency thus produced is low enough to be divided by a conventional frequency divider 14 and the output may pass through an amplifier 16 to an electric clock 15. In order to cancel out temperature and similar effects from the difference frequency above a selective element 12 is switched from one oscillator control system to the other during intervals of zero output. These systems include frequency modulated oscillators 10C and 10D whose output is mixed with oscillators 10A and 10B at rectifiers 13AC and 13BD. The two difference frequencies thus produced pass to amplifiers 25A and 25B, respectively for combination with the signals from the gas cells to produce control voltages from mixers 41A and 41B for oscillators 10A and 10B. The amplifier 12 is connected in both of the circuits to amplifiers 25A and 25B and is rendered effective in each circuit alternately by means responsive to the frequency of modulation of oscillators 10C and 10D. In a modified system a low-pass filter is used instead of unit 12 and in this case it is stated that sufficient accuracy is obtained by omitting the switching associated with element 12 and having a separate filter in each control system. In a further and more radical modification an oscillator is stabilized by comparing a high harmonic of its oscillations with a gas standard and its fundamental frequency is used as control instead of a gas standard by comparison with a high harmonic of a further generator. By continuing such a chain of circuits a desired low-frequency is reached.
Patent GB-208317-A (GB)
Title: Improvements in paint-scrapers or the like tools
IPC: B44D3/16
Filed: 1922-11-02
Abstract: 208,317. Verheyden, P. J. C. Nov. 2, 1922. Scrapers for removing paint &c. of the kind in which the blade is perpendicular to the handle are formed with serrated edges. Preferably a detachable serrated blade 5, is secured in one edge of a scraper 1 by means of nuts 8, 9 between a spring plate 6 and the scraper 1 which is of triangular form. The blade 5 is received in a recess 4 of the scraper 1. and the other edge. 10 of the blade may be sharpened, so that, by reversing the blade 5, this edge 10 may also be used as a scraper. The edge 10 can be used in certain places which are inaccessible to the edge 5.
Patent GB-959867-A (GB)
Title: Insert elements for incorporation in synthetic resin mouldings
IPC: B29C39/10
Filed: 1962-08-03
Abstract: 959,867. Studs. STANDARD TELEPHONES & CABLES Ltd. Aug. 3, 1962 [Aug. 7, 1961], No. 29962/62. Heading F2H. [Also in Divisions B5 and H2] An electric terminal stud 5, Fig. 2, bearing a lug 6 to take a soldered connection and for incorporation in a synthetic resin moulding 17, Fig. 3, has a hexagonal head 8 and a largediametered shank portion 9 which is a force fit in an aperture in the lug 6 and is joined by a tapered shoulder 10 to a small-diametered and threaded shank portion 11. The shoulder 10 closes a cavity in the moulding die (even when the narrow shank portion 11 is misaligned in the cavity) so that no plastic material flows into the cavity on to the portion 11.
Patent GB-943594-A (GB)
Title: Mechanical coupling for coupling the drum of a cable winch to a driving shaft
IPC: B66D1/14
Filed: 1962-08-03
Abstract: 943,594. Positive clutches. F. SCHNEIDER. Aug. 3, 1962, No. 29965/62. Headings F2C and F2L. In a rolling key clutch for a cable winch drum 1 the key 4 is rotated for engagement with one of a series of drum recesses 2 by the contacting of the circumference of an integral control disc 7 with one of a corresponding series of inwardly spring-loaded plungers 8. Angular displacement of the key 4 is controlled by an arm 5 movable between stops 6a, 6b. The key may be released, when the drum is stationary, by pulling on the cable 10 so that one of the plungers 8 enters a notch 11 in the disc 7 to rotate the latter in the key-disengaging direction.
Patent GB-1147454-A (GB)
Title: Improvements in or relating to automatic switch-off devices for gramophone record changers
Inventor: SAY ALAN WILLIAM
IPC: G11B17/16
Filed: 1965-07-14
Abstract: 1,147,454. Gramophone centre-post mechanisms. GARRARD ENG. Ltd. 1 July, 1966 [14 July, 1965], No. 29971/65. Heading G5R. In a device of the type disclosed in Specification 951,972 in which retraction of latch 3 releases record A and a cam actuated deflector 10 co-operates on one side of the spindle with the bore of a record B to move it laterally of the spindle so that the opposite edge of the bore of the record enters into a recess 7 and is supported by a bevelled shoulder 8, the deflector 10 has an upwardly extending resiliently flexible tail 12 with a lower portion 13 of reduced thickness which permits angular outward movement of deflector 10 until its reduced-thickness lower end portion 14 is clear of the outer surface of the spindle. A guide bush 12a on the end of tail 12 has a frictional fit in spindle extension 6 and is movable downwardly by means of a rod 5 and two thrust bushes 15, 16. If there are any records on the stack downward movement of rod 5 is arrested by abutment of deflector 10 on a record but if the last record has been released further downward movement of the rod is permitted. This further movement is used to switch off the mechanism. If is stated that the invention will work reliably irrespective of whether, when more than one record is left, the record resting on the latch means has a hole of smaller diameter than the next-following record in the stack.
Patent GB-742828-A (GB)
Title: Improvements in or relating to strapping for strengthening the corner joints of crates or other articles
IPC: B65D6/00
Filed: 1953-10-30
Abstract: 742,828. Furniture mounts. TAYLOR, A., TAYLOR, F. A., and TAYLOR, L. E., [trading as ATTALA TOOL & DESIGNS CO.]. Oct. 13, 1954 [Oct. 30, 1953], No. 29986/53. Class 52(1). [Also in Group XVII] A device for strengthening the inside or outside of corners of crates, furniture and the like comprises a metal blank shaped and bent to provide straps 20, 21, 22 across the surfaces adjacent the corner. The ends of the blank may be overlapped and secured by nailing or welding. The device may be secured in place by nailing.
Patent GB-952118-A (GB)
Title: Improvements relating to logical circuits
Inventor: CHILTON JOHN MOORHOUSE
IPC: G06F7/502
Filed: 1961-08-19
Abstract: 952,118. Logic circuits. W. & T. AVERY Ltd. Aug. 17, 1962 [Aug. 19, 1961], No. 29991/61. Heading H3T. [Also in Division G4] A half adder comprises an AND and a NOR circuit having their input terminals connected in parallel, a second NOR circuit having its two input terminals connected one to the output terminal of the AND circuit and the other to the output terminal of the first NOR circuit and a third NOR circuit having its input terminals connected to the outputs of the first and second NOR circuits. As shown in Fig. 1, the input terminals A, B are connected to an AND circuit formed by diodes X1, X2 and a NOR circuit formed by resistors R1, R2 and transistor T1. The outputs of the first two circuits are connected to a second NOR circuit formed by resistors R6, R7 and transistor T2. The outputs of the two NOR circuits are fed to a further NOR circuit formed by resistors R10, R11 and transistor T3. It is shown that if terminals A, B are both negative, then terminal S is at zero potential and terminal C is negative. If either of terminals A or B is negative then terminal S is negative and terminal C is zero. Terminals C, S both remain at zero potential if both terminals A, B are zero. The AND and the first two NOR circuits thus form an exclusive OR circuit. Figs. 2-4 (see Division G4) relate to binary and binary-coded-decimal adders.
Patent GB-483926-A (GB)
Title: Manufacture of compounds of the cyclopentano-hydrophenanthrene series
Filed: 1936-11-04
Abstract: D 5-Unsaturated 3-epi-oxy-compounds of the cyclopentano p  - hydrophenanthrene series are prepared by reducing in neutral medium the keto group of a D 5-3-keto compound of the above series.  The mixture of stereoisomeric alcohols so obtained may if desired be separated by the use of digitonine.  As reducing agents there may be used hydrogen in the presence of a noble or non-noble metal or metal oxide catalyst such as platinum, platinum oxide, nickel, cobalt or a mixture of metals with or without a carrier, or even aluminium amalgam, the essential feature of the process being that the reduction is carried out in neutral medium. In examples: (1) a small amount of active nickel catalyst is added to a cyclohexane solution of D 5-cholestenone.  The mixture is then shaken at room temperature with hydrogen, and the reduction product separated into its constituents by means of digitonine, to give pure epi-cholesterol; (2) active nickel catalyst is added to an alcoholic solution of androstendione, and the mixture hydrogenated and treated with digitonine as in example (1) to give D 5-3-epi-oxy-androstenone-(17); (3) active nickel catalyst is added to an alcoholic solution of D 5-testosterone-propionate and the mixture is hydrogenated and treated with digitonine as in example (1) to give D 5-3-epi-oxy-17-oxy-androstene.  Specifications 443,463 and 472,294 are referred to.
Patent GB-1005316-A (GB)
Title: Improvements in and relating to tents
Inventor: FLIN KENNETH
IPC: E04H15/34
Filed: 1962-08-03
Abstract: 1,005,316. Tents. JOHN EDGINGTON & CO. Ltd. Aug. 1, 1963 [Aug. 3, 1962], No. 30043/62. Heading E1A. A tent framework consists of tubular members such as 6, 16, 26, interconnected in spigot-andsocket fashion by connectors 2, 3, 4 shaped as shown and suitably reinforced as necessary, see also Figs. 4, 5 and 6 (not shown). A canvas cover is detachably secured to the framework by elastic cords each having a hook to engage a D-piece attached to the canvas and a spring clip to engage the framework, see Fig. 3 (not shown). The connectors may be formed with annular ribs for locking engagement with a spring actuated latch carried by the tubular members.
Patent GB-300574-A (GB)
IPC: C10G21/06
Abstract: 300,574. Naamlooze Vennootschap de Bataafsche Petroleum Maatschappij, (formerly Bataafsche Petroleum Maatschappij). Nov. 15, 1927, [Convention date]. Emulsions, making.-Sulphonated mineral oils obtained bv a process involving a pretreatment with liquid sulphur dioxide, or other substance having a similar solvent action upon the aromatic constituents prior to sulphonation by means of sulphuric acid or oleum are used as emulsifying and stabilizing agents in the preparation of aqueous dispersions of mineral oils, vegetable oils, tar, asphalt, paraffin sulphur and rubber and other substances. The sulphonation may be effected accoding to the process of Specification 291,393, the excess of acid being completely removed.
Patent GB-226234-A (GB)
Title: Rectilinear guide for tourists, and method of mounting the paper band bearing same
IPC: G09B29/06
Filed: 1924-12-15
Abstract: 226,234. Scapinelli, G. Dec. 14, 1923, [Convention date]. No Patent granted (Sealing fee not paid). Maps.-A route map for touring is traced in a straight line on a strip of paper &c. which may be mounted on two rollers a, b, held together bv an elastic band c, or may be folded in pleats. Advertisements may be arranged side by side with the topographical information. Reference has been directed by the Comptroller to Specifications 14791/06, 8090/10, and 162,283.
Patent GB-229771-A (GB)
Title: Improvements in or relating to machines for measuring granular or pulverulent materials by volume
IPC: G01F11/24
Filed: 1923-12-01
Abstract: 229,771. Day, A. Dec. 1, 1923. Moving-chamber apparatus. - Relates to machines of the rotary disc or drum type in which a filling disc is rotated continuously on a horizontal plane and is provided with one or more measuring chambers an adjustable slide being provided to vary the capacity of a chamber, and consists in performing the movement for adjusting the capacity by actuating a screw located in the periphery of the disc, and also in the provision of horizontally and vertically moving brush or ejector. A measuring disc F is rotated within a dish D by a vertical shaft C driven from a shaft B. Above the dish is a hopper G within which is an agitator J driven from the shaft G. The disc is provided with two diametrically opposite perforations f<1>, f<2> constituting measuring pockets which are successively brought under the hopper G and over a discharge shoot T. Scrapers may be fitted in the hopper to level the material as the disc F carries the tilted chamber clear of the hopper. One side of each chamber is formed by a screw-adusted slide f<4> in order to vary the capacity. In measuring sticky materials such as sugar a brush or other ejector is provided to prevent the material adbering to the sides of the pocket. A brush M is supported from one arm N of a bell crank lever the other arm of which is connected to a link pivoted to the top of the hopper and acted upon by a cam on the shaft C so that the brush is moved horizontally. The stem m<1> of the brush passes into a socket m<2> and is held up by a spring m<3>. A second cam W acts to depress the rod m<1> against the spring so that the brush is moved vertically as well as horizontally.
Patent GB-832162-A (GB)
Title: Improvements in the production of 1-alkoxybutene-(1)-ones-(3)
Filed: 1958-09-23
Abstract: 1 - Alkoxybutene - (1) - ones - (3) are prepared by splitting off alkanol from 3-ketobutyraldehyde-dialkylacetals at 80-170 DEG  C. in the liquid phase in the presence of a catalyst comprising iron, cobalt, nickel, copper or zinc in the form of a metal, oxide or salt. The catalyst may be in the form of a metal forming part of the reactor.  The catalyst is suitably used in amounts of 0.01 to 5% by weight of the acetal, but up to 20% may be used.  0.01 to 3% by weight of a basic-reacting inorganic compound with reference to the acetal may be present.  Pressures above or below atmospheric may be used.
Patent GB-1093227-A (GB)
Title: Method for recovering uranium and plutonium values from molten metal fluoride salt mixtures
IPC: C01G43/06
Filed: 1965-07-16
Abstract: Uranium and plutonium values are recovered from metal fluoride salt mixtures containing them by heating the salt mixture to a molten state, dispersing the mixture into droplets and contacting it with fluorine gas to convert the uranium and plutonium values to the volatile hexafluoride state, the salt droplets being contacted with fluorine at a temperature at least as great as the liquidus temperature of the salt mixture (the temperature at which all trace of solids disappears) and the volatile hexafluoride product being recovered.  Metal fluoride salt mixtures specified are NaF-LiF, LiF-BeF2, NaF-ZrF4, NaF-LiF-ZrF4, KF-ZrF4 and Li7F-BeF2-ZrF4. With a mixture of composition 48.75-48.75-2.5 NaF-ZrF4-UF4 (mole per cent) the salt droplets are contacted with gaseous fluorine at between 510 DEG  and 700 DEG  C.  The molten droplets and fluorine gas are preferably passed in countercurrent through a tower maintained at the liquidus temperature of the salt mixture, the solidified salt droplets after reaction, preferably being collected in a chilled (0 DEG  C. or less) pool of fluorocarbon compound, e.g. perfluoro-1,3-dimethylcyclohexane.  Helium may be introduced in countercurrent to the fluorine in the tower to serve as a blanket gas. The salt droplets are preferably of 100-200 microns particle size.  The salt mixture may be sprayed down the tower or may be passed through a sieve plate to provide droplets of the required size.  Alternatively a solid salt mixture may be crushed to a required particle size before being introduced into a heated fluorinator column.
Patent GB-690763-A (GB)
Title: Improvements in or relating to closures for containers
IPC: B65D41/22
Filed: 1950-12-12
Abstract: 690,763. Stoppers. FREEMAN, W. S. Dec. 5, 1951 [Dec. 12, 1950], No. 30368/50. Class 125(iii) A closure for carboys &c. has a flexible rubber plug 10 serrated at 11 to grip the mouth of the container and with a stepped central bore, the upper portion 15 of which is of relatively small diameter and short in length merging with a curve 17 into a wider portion 16, and a liner of polyethylene having a hollow cylindrical body 19 to fit into the bore 16, a flange 20 to fit around the lower part 18 of the plug 10 and a hollow neck 23, to fit the bore 15, with a hollow head 24 which is passed through the bore 15 to lie outside the plug and retain the liner therein. The plug 10 has springing from it upper periphery a skirt 13 which is folded over around the outside of the carboy and which has a groove 14 to receive a securing wire. A vent passage 26 provides communication between the interior and the outer atmosphere.
Patent GB-1287731-A (GB)
Title: Improvements in or relating to apparatus for testing the adhesion of coatings
Inventor: SHAW THOMAS RONALD
IPC: G01N19/04
Filed: 1968-06-26
Abstract: 1287731 Testing the adhesion of coatings CENTRAL ELECTRICITY GENERATING BOARD 26 Sept 1969 [26 June 1968] 30489/68 Heading G1S Apparatus for testing the adhesion of a surface coating to a substrate comprises a member 10 adapted to be attached to the coating by an adhesive, and a screw jack for pulling the member in a direction away from the surface, the screw jack including a shear pin 30 arranged to shear when the pull exceeds a predetermined value. Three legs 20, 21 of the screw jack stand on the coating and support a body 25 through which a threaded rod 31 passes. The surface 11 of the member 10 is adhesively secured to the coating and a head 14 of the member is received in a keyway 37 of a cylinder 26 which is connected to the rod 31 by the shear pin 30. Rotation of a knob 32 raises the member 10 so that if the coating is satisfactorily secured to the substrate the pin 30 shears at the predetermined force. A key 27 engages a keyway 29 to prevent rotation of the member 10.
Patent GB-393572-A (GB)
Title: Improvements in tyre deflation indicating systems
IPC: B60C23/06
Filed: 1931-11-04
Abstract: 393,572. Pneumatic tyres. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, FELLOWES, F., and DAW, R. F., Fort Dunlop, Birmingham. Nov. 4, 1931, Nos. 30549/31 and 12819/32. [Class 144 (i).] Means for indicating tyredeflation on one of a pair of wheels 1 2, mounted on twin back axles 3, 4 comprises a device actuated, with delay action, by the differential displacement of the wheels. In the construction shown, cables &c. 10, 11 attached to the wheel-centres are connected through springs 15 to a rack 16 which is adapted to slide in a fixed casing 18 and meshes with a pinion 19. Pivoted between the pinion and a coaxial disc 21 is a crank 20 which is connected to the piston 23 of a fluid dashpot 37, the piston having apertures, which may be adjustable, for the passage of the oil or other fluid 33. On collapse of one of the tyres, the rack 16 is moved from its neutral position (shown), and a cam-portion 27 on the disc 21 is rotated into engagement with a contact 28 to close a signal-operating circuit.
Patent GB-1436690-A (GB)
Title: Self levelling dispenser
IPC: A47B31/00
Filed: 1974-07-10
Abstract: 1436690 Counterbalancing PETERS & CO Inc 10 July 1974 [16 July 1973] 30564/74 Heading B8B A self levelling dispenser includes a load carrying platform carried on arms 18 having an upward force applied thereto through cable systems 26, 28 influenced by an adjustably spring biased pivoted lever 38, whereby the level of the top of a stack of article on the platform, is maintained as the stack content is changed. The lever 38 is pivoted at one end 42 to a frame 52 and is arcuately curved on a radius equal to the distance between the pivot 42 and a pivot 44 on the frame 52 for a tension spring 46, the lever 38 being centred about the point 44 when the platform is unloaded and the spring 46 therefore not tensioned. The cables 26, 28 each extend from a load supporting arm 18 over respective pulleys 30, 32 on the frame 52, around coaxial pulleys 34 on the frame and coaxial pulleys 36 on the free end of the lever 38, and are anchored at 40 to the frame 52. Increased loading on the arms 18 causes downward pivoting of the lever 38 against the tension of the spring 46, the torque arm at which the spring 46 is effective on the lever 38 being adjustable by a further cable system. The latter comprises two cables 68, 64 anchored to a spring connection 48 slidable along the lever 38, the cable 68 extending in one direction along the outside of the lever 38 and guide on to one side of a takeup reel 70 whilst the cable 64 extends in the other direction, around a pulley into the interior of the lever 38 which is hollow, and is guided out of the pivoted end of the lever on to the other side of the take up reel 70. Manual rotation of the take up reel 70, once the latter has been lifted against spring bias 74 out of detent locking engagement adjusts the position of the spring connector 48 along the lever 38 to set the spring lever torque appropriate to the load on the platform. In a further embodiment, the lever torque available is adjusted by applying a load to the platform or by releasing spring bias on the platform, depending on the direction of adjustment, when the fixed pivot for the spring is off centre relative to the end of the lever. In another embodiment the torque is adjusted by varying the position along the lever of either the lever pivot to the structure or the cable pulley at the free end of the lever.
Patent GB-617605-A (GB)
Title: Improved resin moulding compositions
IPC: C08L77/00
Filed: 1945-11-15
Abstract: A moulding composition comprises a phenolaldehyde thermosetting resin and synthetic polyamide fibres less than six inches in length.  The fibres may be in the form of threads, knitted, woven or belted fabric, string or monofils.  The composition may also comprise known catalysts, dyes, pigments, mould lubricants or fillers.  The preferred polyamides are polyhexamethylene adipamide and sebacamide. In examples, compositions consist of a novolak, hexamethylenetetramine, magnesium oxide, stearic acid, the colouring-matter known under the Registered Trade Mark "Nigrosin" and either polyhexamethylene adipamide filaments .02 inch diameter, 1/2 -1 inch long or 1/4 inch dicings of "Nylon" fabric.  Specifications 461,236, 461,237 and 545,216 are referred to.