baber/WOPTO huggingface dataset:
Patent GB-525962-A (GB)
Title: An improved manufacture of gasolene and like hydrocarbons from isobutane and olefins
IPC: C07C2/62
Filed: 1939-03-01
Abstract: 525,962. Hydrocarbons. STANDARD OIL DEVELOPMENT COMPANY. March 1, 1939, No. 6652. Convention date, Nov. 12, 1938. Drawings to Specification. [Class 2 (iii)] Gasoline hydrocarbons are prepared by feeding a liquid mixture of isobutane and an olefine, with the former in large excess, into a pool of concentrated mineral acid at a temperature between 60‹ and 175‹ F. and under a pressure substantially equal to the vapour pressure of isobutane at the reaction temperature, continuously withdrawing from the pool the gasoline hydrocarbon reaction products and also withdrawing the vapourized isobutane from the pool, and after liquefying it, returning it to the fresh feed. By maintaining the pressure as stated, any increase in temperature caused by the reaction results in the vapourization of the isobutane, which withdraws heat from the reaction vessel and maintains it at the desired temperature. Preferably, sulphuric acid of a concentration at least 90 per cent. is used for the pool, the temperature of which is kept within the range 90-125‹F. ; the use of orthophosphoric acid is also mentioned. The olefine is usually the C4 cut from mineral oil cracking operations, but other olefines, including butene polymers or co-polymers of butene and isobutene or even amylene may be employed. A high ratio of isobutane to olefine must be maintained at the point of introduction into the pool and this is secured when the volumetric ratio of the isobutane to olefine is at least 4:1, preferably of the order of 8:1, and the fresh feed is introduced into the pool through a number of jets of small diameter. An example describes the treatment of a liquid mixture of hydrocarbons containing 80 per cent. by volume of isobutane, 10 of n-butane, 6 of isobutene and 4 of n-butene, using 95-100 per cent. sulphuric acid, a temperature of 70‹F. and a pressure of 25-30 lbs. per sq. in. ; the product comprised a gasoline fraction boiling between 80‹ and 300‹F. and having an octane number of 92 to 93. The Specification as open to inspection under Sect. 91 also describes the use of saturated tertiary hydrocarbons as well as of isobutane and includes propylene among the olefines specified. This subject-matter does not appear in the Specification as accepted.
Patent GB-650582-A (GB)
Title: Improvements in or relating to arrangements for image transmission
IPC: H04N1/327
Filed: 1948-03-03
Abstract: 650,582. Copying telegraphy; electric synchronous movements. PHILIPS ELECTRICAL, Ltd. March 3, 1948, No. 6698. Convention date, March 6, 1947. [Class 40 (iii)] In a copying telegraph system in which the images to be produced, 13, Fig. 1, are displaced on a conveyer belt 1 relatively to an electrooptical apparatus producing a light beam and scanning the image at uniform speed in parallel lines transverse to the direction of the length of the belt, reflected light being received by a photo-electric cell, the belt is provided with parallel bands 15 which contrast with the base so that, when the light beam traverses the belt surface, there is produced in the photo-electric cell output an alternating current signal of definite frequency whereby receiving apparatus may be synchronized. The signal is transmitted until the scanning of a subsequent image starts, and conveniently the receiver is arranged to perform some function, such as replacing the recording carrier, when the signal ceases. A filter selects the signal from the received image signals and controls the desired function through a relay. If the image to be produced is narrow compared with the belt, a brief synchronizing signal may be transmitted at the end of each line scan due to the exposed bands at the top and bottom of the image and, to avoid incorrect actuation of the receiver, a circuit, Fig. 3, is employed which is inoperative to short-duration signals. The relay 30 is controlled through a triode 29 which is normally cut-off, the grid being held at a, low potential due to the low impedance of diode 24, 35. Upon receipt of a signal through filter 22, a rectified voltage appears across circuit 26, 27, raising the diode cathode potential and cutting-off diode 24, 35. Condenser 31 thereupon charges through resistance 28, raising the grid potential of triode 29 and allowing relay 30 to operate. The time-constant of circuit 28, 31 is selected to avoid operation by short-duration signals. An alternative circuit, Fig. 5 (not shown), is designed to reduce the standing current drain between signals. To assist in placing the images with equal spacing along the conveyer-belt a second set of parallel bands may be provided inclined at an angle of 45 degrees to the first set, Fig. 3 (not shown). The second set of bands may be so coloured with respect to the base to avoid generating a signal in the photo-electric cell. At the transmitter the scanning apparatus rotates around a shaft disposed parallel to the conveyor belt which is caused to be arcuate in the position where it passes the scanning apparatus. Preferably several scanning members are employed evenly distributed around the shaft. At the receiver, reproduction may be by a modulated light beam on photographic paper.
Patent GB-402292-A (GB)
Title: Improvements in and relating to electric switch operating mechanism
IPC: H01H3/26
Filed: 1933-03-06
Abstract: 402,292. Actuating controllers. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) March 6, 1933, No. 6770. Convention date, March 5, 1932. [Class 38 (iii).] A motor controller shaft w is operated by a pilot motor m through friction wheels r', r2 which are brought into and out of engagement by oscillating the motor about a suspension pivot f by means of a spring e and a solenoid s switched in and out with the pilot motor. Fluid actuated means may replace the solenoid s, and a brake may be provided to stop the controller when the pilot motor is stopped.
Patent GB-801315-A (GB)
Title: Method of contacting solid particles with fluids
IPC: B01J8/24
Filed: 1955-03-08
Abstract: <PICT:0801315/III/1> In a method of contacting solid particles with fluids, especially gaseous fluids, a jet of gas is directed vertically upwardly through a mass of the particles contained in an open-topped cylindrical vessel 1 having a bottom section 2 in the form of an inverted cone to form a well-defined, continuous, relatively rapid upward spout 6 of solid particles, the remainder of the particles having a slow downward motion and continuously migrating to and being upwardly spouted in said spout at all levels so that the mass is in continuous motion.  The gas enters by a pipe 4 having a screen 5 to prevent solid particles entering the pipe. For continuous operation the vessel would have a solids inlet pipe and an overflow pipe.
Patent GB-107363-A (GB)
Title: Improvements in Chucks.
Inventor: WEIR DAVID
IPC: B23B31/12
Filed: 1917-05-14
Abstract: 107,363. Weir, D. May 14, 1917. Chucks.-Figs. 1 and 2 show a bevel-closing chuck in which the jaws move on balls in slots in the chuck body 7 to the lower end of which is screwed the coned end 9. The jaws are connected by balls 23 to a carrier 15, the upper end of which is cam shaped and is engaged by the cam-shaped end of a boss 13 secured to the operating sleeve which is screwed to the body, so that, when rotated in one direction, the jaws are forced outwards and closed by the cam shaped boss 13 acting on the carrier. When the sleeve is rotated in the other direction, a pin 19 in the boss 13 acts on a second cam 17 fixed on the carrier to withdraw and open the jaws. In a modification, helical coils on the carrier and boss 13 coact to open and close the jaws.
Patent GB-1299731-A (GB)
Title: Improvements in or relating to the reduction of wheel slip in locomotives
Inventor: HILL MICHAEL LEO GEORGE
IPC: B60L3/10
Filed: 1969-02-07
Abstract: 1299731 Controlling wheel slip electrically HAWKER SIDDELEY DYNAMICS Ltd 9 Feb 1970 [7 Feb 1969] 6863/69 Heading G1N Apparatus for reducing wheel slip in locomotives comprises means for measuring the wheel acceleration and cutting off engine power when it exceeds a predetermined value. As shown Fig. 1, a probe 12 associated with a gear wheel 11 produces a pulse train whose frequency is proportional to wheel speed. The frequency is converted at 13 to a proportional voltage, differentiated at 14 to produce an acceleration signal, amplified and fed to threshold switches 16, 17. Switch 16 sends a pulse to a monostable circuit 19 and a bistable circuit 18 when the acceleration reaches a predetermined high value. The output from circuit 19 shuts off motive power for its set pulse duration and the output from circuit 18 sets back an engine speed-regulating throttle valve. Switch 17 sends a pulse to circuits 18 and 19 when the acceleration rises through a normal value after having fallen to a negative value, which pulse resets circuit 18 and also circuit 19 if it has not yet reached its set pulse duration. The cycle is repeated if slip recurs, until slipping stops.
Patent GB-458169-A (GB)
Title: Improvements in or relating to electron discharge tubes
IPC: H01J31/04
Filed: 1935-03-05
Abstract: 458,169. Discharge apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. March 5, 1935, No. 6945. Void [Abridged as open to inspection under Sect. 91 of the Acts, Nov. 16, 1935]. [Class 39 (i)] A device for generating or amplifying oscillations comprises a cathode beam which is deflected laterally and is such that it is homogeneous where it impinges on the anode or anodes. In one form a filament 3, housed in a semi-cylindrical reflecting trough 4 generates a beam which passes through an aperture 5 in an accelerating electrode 6 and, after deflection by plates 7, 8, falls on one or other of two anodes 9, 10. The anodes may be rectangular, or semicircular with their straight edges adjacent, or in the shape of right-angled triangles with their hypotenuses adjacent, or a single triangular anode may be used. A straight line characteristic is obtained with rectangular or semicircular anodes, and a curved characteristic with triangular anodes.
Patent GB-865782-A (GB)
Title: Improvements in or relating to methods of joining waveguides
IPC: H01P1/04
Filed: 1958-03-05
Abstract: 865,782. Waveguides. GENERAL ELECTRIC CO. Ltd., and COLLINS, L. March 2, 1959 [March 5, 1958], No. 7060/58. Class 40(8) A flange arrangement on a waveguide 1, Fig. 3, which can be of rectangular or other crosssection and of aluminium, comprises a flange member 15 encircling the guide, and forming regions of appreciable volume between the inner surfaces of the flange member and the outer surface of the guide, the regions being at least partially filled with a thermo-setting plastic material 21. The thermo-setting plastic material can include those cured by heat and those cured by standing at room temperature. The internal cross-section of the flange member increases from the end 18 up to the constricted portion 19 in which the guide 1 is a push fit. The flange member 15 can be formed of aluminium and the plastic material can be an epicote resin which can contain aluminium powder such as "Hermetal" (Registered Trade Mark). The guide can be serrated to provide surfaces on which the plastic material keys. Two guides 1, 2 can be joined by two flange members 15 having between them a plate 16, Fig. 4, e.g. of aluminium, having a window 23 and recesses 24 to receive the ends of the guides, as described in Specification 854,981. Rubber gaskets 25 may be provided and the flange members are joined by bolts 26. The guide arrangement can be pressurized. In the arrangement shown in Fig. 1 two guides 1, 2 are joined by a sleeve member 3 having regions filled with thermo-setting plastic material 4 as above. The guides can be of rectangular cross-section and a groove 9 provided in the sleeve member, the groove holding four resilient metal tongue assemblies 10 against which the ends of the guides 1 and 2 bear. Each tongue assembly comprises a strip 11 of hardened beryllium copper alloy and a thinner strip 12 of resilient beryllium copper alloy. Each of the strips 12 is provided with slots 13, Fig. 2, and is folded to U-section around the strip 11. The tongue assemblies 10 can protrude a short distance into the guides.
Patent GB-990250-A (GB)
Title: Semiconductor devices
IPC: H01L27/07
Filed: 1962-02-23
Abstract: 990,250. Semi-conductor amplifier circuits. WESTINGHOUSE ELECTRIC CORPORATION. Feb. 23, 1962 [March 10, 1961], No. 7147/62. Heading H3T. [Also in Division H1] An amplifier comprises a high Q tuned circuit including a unijunction transistor (double base diode) of the type described in Specification 990,249, preceded by a junction transistor which may be connected in the common base or common emitter modes. The double base diode circuit simulates an inductor and this is tuned by a capacitor 54.
Patent GB-1194071-A (GB)
Title: Piezoelectric Transducer with Acceleration Compensation
Inventor: LIST HANS
IPC: G01L19/02
Filed: 1968-02-14
Abstract: 1,194,071. Piezo-electric generators. H. LIST. 14 Feb., 1968 [20 Feb 1967], No. 7188/68. Heading H2A. [Also in Divisions G1 and H1] In a piezo-electric pressure transducer in which a piezo-electric element is prestressed between a spring-loaded member, to which the pressure to be measured is applied, and a fixed part of the transducer assembly, an additional piezo-electric element is provided to compensate for the effects of acceleration on the measuring element, the compensating element being counter connected in relation to the former element so that only a part of the charge on the compensating element is used. In one embodiment, the measuring piezoelectric wafer 11, Fig. 1, e.g. a quartz plate, and the compensating element 15, of the same material and piezo-electric modulus as the wafer 11, are-held between the bottom 6 of a tubular spring 4 and an insert 2 held in the housing 1, sealed at its lower end by a plate spring diaphragm 7. The wafer 11 is provided with a metal shim 10 electrically connected via spring 4 to the housing and a metal disc electrode 12 whose connection 13 is insulated from the housing. The upper surface of the element 15 is in electrical connection with a metal layer on the lower surface of an insulating disc 16, which metal layer is divided into two insulated parts 19, 20, Fig. 2, the former part being connected via bridge 21, layer 17 on the upper surface of the disc 16 to the insert 2 and thence to the housing. Thus only that proportion of the charge on part 19 of the metal layer in contact with the compensating element 15 is used for compensation. In a second embodiment, Fig. 4 (not shown), the measuring element, a series of wafers (34), common electrode (35) compensating elements (42), (47), (48), and insulating disc (37) are held between a plate spring diaphragm (24) and insert (29) fixed in housing 22. The compensating elements and disc (37) are each provided with metal coatings, Figs. 5-7 (not shown), such that again only part of the charge generated is used for compensation, the metal coatings being divided by insulating strips in the form of chords or annulii.
Patent GB-1122146-A (GB)
Title: Process for preparing hardened epoxy resins
IPC: C08G59/38
Filed: 1967-02-10
Abstract: Hardened epoxy resins are obtained by reacting mixtures of glycidyl ethers of polyhydric phenols and triglycidyl isocyanurate, which contain at least 5% but less than 40% by wt. of crystalline triglycidyl isocyanurate, with anhydrides of dicarboxylic acids.  The triglycidyl isocyanurates contain at least 14% by wt. of epoxidic oxygen.  The glycidyl ethers may be derived from dihydric phenols and have an epoxide equivalent of from 170-1200.  The amount of carboxylic acid anhydride present may be such as to provide 0.6 to 1.2 anhydride groups per epoxy group.  Hardening may take place at 80-200 DEG  C. with an optional tempering at 180-210 DEG  C. Conventional dyestuffs, fillers and pigments may be present.
Patent GB-139898-A (GB)
Title: Improvements relating to hair frames
IPC: A45D8/38
Filed: 1919-03-24
Abstract: 139,898. Wagner, J. P., and Brandon, J. E., (trading as Wagner & Brandon). March 24,1919. Hair - frames. - To avoid the penetration of hair-frames by hairpins, they are provided with tabs, Fig. 3, through which the pins may be passed. These tabs are made of hair 5 covered with netting 6, and are edged with braid &c. 7. They may be attached by stitching.
Patent GB-1081233-A (GB)
Title: Stabiliser for antioxidant in soaps, oils and like products
IPC: C09K15/06
Filed: 1966-02-18
Abstract: A stabilizer for an anti-oxidant for mineral or fatty oils, soap, synthetic detergent or perfume formed by a mixture of at least two components comprising (a) a mixture of salts of ethylene diaminetetracetic acid, alone or in mixture with another complexing acid, such as citric acid, the salts being obtained by complete neutralization of this acid by at least caustic soda and/or caustic potash, at least one amino-alcohol and at least one amine, preferably aromatic or an imino amine; (b) a mixture of diethylene glycol and polyethylene glycols, the latter being of molecular weights between 100 and 10,000 the said diethylene glycol and polyethylene glycols being used in the pure state or in combination with fatty acids, fatty amines or amino alcohols, and/or alkyl aryl phenols.
Patent GB-565525-A (GB)
Title: An improved clamping ring for the closures of drums and like containers
IPC: B65D45/34
Filed: 1943-05-08
Abstract: 565,525. Clamping rings for drum &c. closures. METAL CONTAINERS, Ltd., and FRICKEL, G. M. May 8, 1943, No. 7318. [Class 21] A clamping ring 1 adapted to embrace projecting flanges of a drum &c. and its closure, has a hand lever 6 pivoted at 5 to one end of the ring and at 9 to a link 8 which is itself pivoted at 10 to the other end of the ring, the position of pin 10 being adjustable by a screw 14. Specification 548,851 is referred to.
Patent GB-970128-A (GB)
Title: Improvements in obstetric forceps
IPC: A61B17/44
Filed: 1961-02-28
Abstract: 970,128. Obstetric forceps. A. S. MOOLGAOKER. Feb. 28, 1961, No. 7352/61. Heading A5R. In obstetric forceps the blades are pivoted by means such that they may be displaced longitudinally relative to each other. One blade A has a threaded hole H in its shank to receive a screw 8, forming the pivot, while the shank of the other blade B is slotted, so that it may be slid longitudinally about the pivot screw. For easy dismantling, the screw 8 is carried on a plate P pivoted to the lower blade at 6. The rear ends of the handles H 1 , H 2  have open-ended slots to receive a clamping screw 3. This is fastened, at one end, HE, in a locating block 5 secured to the lower blade by a detachable pin P 2  in a slot S 4 . The bolt passes loosely through a wedge member TW, the inclined faces of which are stepped, to engage against the inner faces of the slotted handles H 1 , H 2 , and is secured, after adjustment of the wedge, by a wing nut 10.
Patent GB-103245-A (GB)
Title: Improvements in connection with Double Jointed or Universal Jointed Box Spanners.
Inventor: EVANS EDWIN HORSBURGH
IPC: B25B13/48
Filed: 1916-05-24
Abstract: 103,245. Evans, E. H. May 24, 1916. Rigid-jaw wrenches; handles and shanks.-Universally-jointed box spanners for use in confined spaces, for example between the brine pipes of refrigerating-ships, are constructed with one fork b small enough to operate inside the other or outer fork a, the width of the outer fork a edgeways being no greater than the outside diameter of the Lox spanner a<3>. The inner fork b is connected to the outer fork by a block c and pins d, c. A guide may be rotatably mounted on a bearing a<2> to assist in positioning and steadying the spanner.
Patent GB-540859-A (GB)
Title: Improvements in or relating to wall-plugs and like fastenings
IPC: F16B13/06
Filed: 1940-04-25
Abstract: 540,859. Wall plugs. DUNCAN, J. April 25, 1940. No. 7435. [Class 89 (i)] [Also in Group XXIII] Wall plugs of the type described in Specification 495,653 have a hollow body 8, Fig. 1, recessed at 8a and notched at 16 to receive and engage a correspondingly formed inserting tool. The body is extended by fingers 13 separated by slits 12 threaded externally, and tapered internally at 13a. The plug is expanded by a wedge 9, Fig. 4, having ribs 14 that engage in the slits 12 and a tapped hole to engage a screw threaded part of the inserting tool that draws the wedge into the tapered part of the fingers causing expansion. Modified forms of wedge are described.
Patent GB-291900-A (GB)
Title: Improvements in, or relating to, a combined sideboard and gramophone cabinet
IPC: G11B33/06
Filed: 1927-03-17
Abstract: 291,900. Finestone, L., (trading as Sheffield Bedding Co.). March 17, 1927. C a s c s . - Sideboards with built-in gramophones have the front doors b of the sound chamber doubly hinged so that they may fold back parallel to the front or side of the article when opened.
Patent GB-1454518-A (GB)
Title: Manufacture of shoes
IPC: A43D3/02
Filed: 1973-02-15
Abstract: 1454518 Boots, &c BRITISH UNITED SHOE MACHINERY CO Ltd 14 Feb 1974 [15 Feb 1973] 7472/73 Addition to 1313189  Heading A3B The forward locating member for temporarily retaining an insole on a last of Specification 1313189 is repositioned at the mid-region, instead of adjacent the toe, of the last, and is provided with two separate cutting portions. As shown, a forward locating member 6 having two separate cutting edges 10, 10 is positioned just rearwardly of the .hinge between the two parts 2, 3 of a hinged last. A rear locating pin 7 is provided adjacent the heel of the last. An insole is placed on the bottom 4, 5 of the last and secured to the forward and reverse locating devices 6, 7 by hammering, &c. The two cutting edges 10, 10 compress the insole locally. Following lasting, the last 3, 4 is hinged from the parallel position shown and withdrawn. Subsequently, the slots in the insole are covered by a sock.