baber/WOPTO huggingface dataset:
Patent GB-907559-A (GB)
Title: Alkyl phenylene diisocyanates
Inventor: FRANCE HAROLD
IPC: C07C265/12
Filed: 1958-05-30
Abstract: Homogeneous or cellular, rigid or flexible polyurethane products are prepared in a known manner using as di-isocyanate an alkylphenylene di-isocyanate in which the alkyl group contains at least 5 carbon atoms.  The alkyl phenylene di-isocyanates of Specification 852,988 are disclaimed.ALSO:The invention comprises alkylphenylene di-isocyanates in which the alkyl group contains at least 5 carbon atoms.  The alkyl group may be, for example, pentyl, cyclopentyl, hexyl, cyclohexyl, heptyl, a -methyl-cyclohexyl or octyl and the di-isocyanates may be prepared by phosgenation of the corresponding amines.  The di-isocyanates may be converted into dimeric or trimeric forms or into thermolabile products by reaction with phenol, acetoacetic ester, diphenylamine or compounds containing a plurality of isocyanate reactive groups.  Examples describe the preparation of 1-cyclohexyl-2,4-di-isocyanato benzene and tert. amyl benzene di-isocyanate.  The compounds of Specification 852,988 are disclaimed.  Tert. amyl phenylene diamine is prepared by dinitrating tert. amyl benzene and reducing the dinitro compound.  The Provisional Specification refers to alkylphenylene di-isocyanates in which the alkyl group contains up to 18 carbon atoms and additional examples describe the preparation of nonyl and dodecyl compounds. 1-n-dodecyl-m-phenylene diamine is prepared by mononitrating 4-n-dodecyl aniline and reducing the nitro-amine produced. Dodecylbenzene diamine is prepared by di-nitrating dodecylbenzene and reducing the dinitro compound.ALSO:Homogeneous or cellular, rigid or flexible polyurethane products are prepared in known manner using as di-isocyanate an alkylphenylene diisocyanate in which the alkyl group contains at least 5 carbon atoms.  The alkyl phenylene diisocyanates of Specification 852,988 are disclaimed.
Patent GB-152729-A (GB)
Title: System or method of aerial railways
IPC: B61B13/08
Filed: 1919-07-10
Abstract: 152,729. Roots, J. D. July 10, 1919. Rope railways.-Grooved wheels secured to an air-ship fore and aft and on each side of same, engage two laterally-arranged aerial ropeways, the air-ship running between the ropeways. Catenary ropes C are carried upon the tops of towers A or upon transverse girders A<1> thereon; the ropes C may be tied together by ropes or tapering tubes and have dropper wires D which are secured in steel brackets E. Each bracket terminates in a thin plate E<3> with a groove E<4> which, with the grooved plate F, secures a rope rail B. The brackets on one rope B are staggered relative to those on the companion rope. At the towers, the ropes B are secured by brackets H similar to the brackets E. The wheels G are preferably arranged in pairs, with the wheels of each pair staggered and engaging one 'above and the other below the rails B. The airship propellers or wheels may be driven by combustion engines or by current conveyed by the ropeway, while the catenary ropes may conduct the return current. The stations may have wind shields to protect the airship when at rest. The Provisional Specification describes also the use of one or three ropeway rails.
Patent GB-847467-A (GB)
Title: Improvements in or relating to the preparation of chlorinated ethylenes
IPC: C07C17/00
Filed: 1959-05-21
Abstract: Tri- and/or tetra-chloroethylenes are prepared by passing sym-tetrachloroethane vapour sequentially through a heated open-tube (i.e. free of packing or added catalyst) reaction zone and through an unheated reaction zone, the ratio of the volume of the unheated zone to that of the heated zone being at least 2 : 1 and preferably at least 10 : 1.  Preferably up to one mole of chlorine is passed per mole of tetrachloroethane in addition to the latter.  The unheated zone may contain packing or catalyst, such as stainless steel, nickel-chromium alloy, porcelain, charcoal or activated carbon. Advantageously a portion of the crude reaction product, preferably a highboiling portion, is recycled to the heated zone.  The heated reaction zone is preferably heated so that the effluent temperature is 350-525 DEG C. Pentachloroethane is obtained as by-product. Specification 468,921 is referred to.
Patent GB-1496230-A (GB)
Title: Lockable actuator mechanism for a pressure medium operated brake
IPC: B60T17/16
Filed: 1975-04-25
Abstract: 1496230 Fluid pressure brakes KNORR BREMSE GmbH 25 April 1975 [8 May 1974] 17375/75 Heading F2F A locking mechanism for a fluid-pressure actuated brake actuator 1, 2 comprises a piston 8 on a threaded spindle 10 with a nut 14, which is rotatable by axial displacement of the spindle, having a clutch face 15 engageable with a clutch surface 17 on the cylinder 3 and an annular piston 22 with a stop surface 36 for displacing the nut against a bias spring 18 to unlock the nut. The clutch surfaces 15, 17 may be toothed. The hydraulic actuator shown is suitable for a railway vehicle, the piston 8 being actuable hydraulically from a handbrake or footbrake. Rotation of the spindle 10 is prevented by radial teeth 12 engageable with the brake piston 2.
Patent GB-398311-A (GB)
Title: Instrument for indicating the transverse position corresponding to the state of movement, and the direction of travel above ground, for air and water craft with gyroscope pendulum
IPC: G01C19/44
Filed: 1932-06-20
Abstract: 398,311. Gyroscopic apparatus. GES. FœR ELEKTRISCHE APPARATE, Marienfelde, Berlin.-(Assignees of Boykow, J. M. ; 2, Fontanestrasse, Lichterfelde- West, Berlin.) June 20, 1932, No. 17414. Convention date, June 20, 1931. Addition to 371,235. [Class 97 (iii).] A transverse velocity meter controls a moment producer for applying a correcting torque to the pendulum described in the parent Specification upon side slip of the aircraft when the latter is set in accordance with an incorrect inclination of the pendulum. In the form shown, an electro-magnetic, hydraulic, or pneumatic moment producer 25, 26 on the axis 3 of the pendulum 2 is controlled by a contact lever 35 actuated by opposed pressure gauges 32, 33 which are connected by pipes 31, 30 respectively to apertures 29, 28 in the sides of a streamlined surface 27. Side slip of the aircraft causes movement of the lever 35 and the application of a torque to the axis 3. Consequent precession of the gyro 4 causes the pilot to steer in a curved path, whereupon. the gyro 5 corrects the pendulum by applying a torque to the precession axis 8 through moment producer 20, 21 in a manner similar to that described in the parent application. The lever 35 may be arranged to bring the moment producers 25, 26 and 20, 21 into operation simultaneously in which case the correction gyro 5 may be dispensed with.
Patent GB-407908-A (GB)
Title: Improvements in or relating to means for indirectly measuring the quantity of heat in a liquid or a gas
IPC: G01K17/14
Filed: 1932-06-20
Abstract: 407,908. Measuring heat quantities. VARNI, A., 8, Largo Cairoli, Pallanza, Novara, Italy. June 20, 1932, No. 17454. Void [Abridged as open to inspection under Sect. 91 of the Acts, June 21, 1932]. [Class 97 (iii).] To measure the quantity of heat in a current of fluid, heat sensitive means in the path of the fluid is arranged to control automatically the flow bye-passed to a meter so that the ratio of the volume passing through the meter to the total volume is directly proportional to the temperature of the fluid. A thermostat in the fluid conduit may vary the position of a valve distributing the fluid between a bye-pass in which the meter is mounted and a conduit having means offering a frictional resistance equal to that of the meter in the bye-pass. In the form shown, the fluid stream is divided between a bye-pass E containing a meter C and the conduit A by a valve P comprising an axially movable disc. The latter is moved by differential thermostat mechanism comprising a thermostat T in the supply conduit S and a thermostat T1 in the return conduit Z. Pressure sensitive means may be arranged to control the distributing valve in addition to the temperature sensitive means.
Patent GB-120129-A (GB)
Title: Improvements in Potato Planting and similar Agricultural Machines.
Inventor: MAWER HARRY
IPC: A01C9/02
Filed: 1917-11-27
Abstract: 120,129. Mawer, H. Nov. 27, 1917. Potato &c. planters.-In a potatoplanting machine, the potatoes are picked up from a feed cup such as 19, by carriers 7 pivotally suspended between a pair of chains or belts 5 running in parallel over upper and lower pairs of sprockets or pulleys 4, 6, each pair being placed out of alinement as shown so that the carriers travel round without turning over, being automatically opened when near the ground to deposit the potatoes. The pulleys 4, 6 are mounted in the frame 1 carrying a main ridge or driving wheel 2 from which the upper pulleys 4 are driven. Each carrier 7 comprises a pair of wire frames 10, 11, terminating in a shank 13 rotatably mounted in a bracket 8, and with its projecting end bent at right-angles. The bracket 8 is pivoted by lugs 9 to the conveyer belts or chains 5. The frames 10, 11 normally hang, as shown in Figs. 3 and 5, to form a cup-shaped carrier, being locked in this position by a spring catch 14 engaging the right-angled shank ends 13 at the back of the bracket. The feed cup 19 comprises a central member 21 and side members 20, Fig. 11, between which the prongs 11 of the carrier pass in lifting a potato. When passing under the lower pulleys 6, a fixed stop 18 actuates a bellcrank lever on the bracket 8, which disengages the catch 14 from the shank ends 13, thereby releasing the cup or carrier members 10, 11, which open as shown in Fig. 8, under the weight of the potato, automatically returning to the closed position after dropping the potato. The feed cup 19 is adapted to be supplied by hand from a table 22, or a rotating disk or other feeding means may be provided. The machine may be adapted to plant several ridges at once.
Patent GB-502956-A (GB)
Title: Improvements in and relating to the treatment of maize for the recovery of starch and related products
IPC: C08B30/04
Filed: 1937-06-23
Abstract: 502,956. Starch. POLLAK, J. E. (International Patents Development Co.) June 23, 1937, No. 17531. Drawings to Specification. [Class 121] Maize is comminuted and subjected to wet separating operations yielding mill starch streams of different densities, the heavier stream being centrifuged to separate gluten from the starch, and at least a part of the lighter stream being introduced independently into the centrifuge as a wash water. Any remainder of the lighter stream may be concentrated and added to the heavier stream before centrifuging. A series of centrifuges may be used, the lighter stream being introduced as wash-water into the first centrifuge, and fresh water being used as wash-water in the last centrifuge. Waste process waters from any stage may be re-used in an earlier stage of the process. The process is illustrated by flow sheets. Specification 502,791 is referred to.
Patent GB-175814-A (GB)
Abstract: 175,814. Hall, C. E. V., and Mills, S. J. A. Dec. 9, 1920. Universal joints. - The pendulous shaft B that carries the crushing-roller or pestle of a grinding or crushing mill is provided at its upper or driving end with a lobe, lobes, horns or the like A formed so as to present a curved surface of contact between the driving and driven members. The lobes are housed in a driving-box D carried by a shaft E and having similarly curved surfaces to those of the lobes and so disposed as to maintain the geometrical centre of the lobes on or near the axis of revolution. The top and bottom or only the bottom side of the lobes have a spherical formation, and the upper and lower sides of the housing D may be either similarly curved or flat.
Patent GB-120581-A (GB)
Title: Improvements in Glasses or Lenses for Headlights.
Inventor: OGDEN JOSEPH PHILLIPS
IPC: F21V5/00
Filed: 1918-10-29
Abstract: 120,581. Ogden, J. P., and Killian, L. J. Nov. 5, 1917, [Convention date]. Lenses.-A glass or lens for automobile and other headlights is formed on one face with substantially vertical prisms b and on the opposite face with substantially vertical panels 14 of greater width than the prisms and separated by grooves 15, as shown in Fig. 4, which shows a cross-section through one-half of the lens. The prisms of greatest depth may be at the sides of the lens, and those of least depth at the centre of the lens, the intermediate ones being deeper in proportion to their distances from the centre of the lens. The prisms, which are preferably formed on the .back face of the lens, may be of uniform depth throughout their length, but are preferably shallower at the central part of the lens and deeper towards its edges.
Patent GB-404683-A (GB)
Title: Improvements in studio camera backs and shutters
IPC: G03B17/04
Filed: 1932-06-22
Abstract: 404,683. Photographic cameras. STOKES, C. J., 65, Myddelton Street, Clerkenwell, and BENNETT, A., 274, Oxford Street, London. June 22, 1932, No. 17626. [Class 98 (i).] In a camera back especially for use with studio cameras, in which a carriage bearing a focusing screen and a plate holder side-by-side, is mounted to slide in a frame so that either can be brought into register with the exposure opening, coacting means are provided on the carriage and frame for rewinding or resetting a shutter also mounted on the carriage. In the form shown the shutter comprises an apertured blind 9, Fig. 5, carried by rollers 10, 11, the latter being spring-actuated. The shaft of the roller 10 is extended upwards to form an axle 14 for a cord 15 attached to a shoe 16 and carries also a collar 21 formed with a projection 20. When the carriage is slid to the right the shoe remains stationary and the cord rotates the shaft thereby winding the shutter, a spring urged pawl 18 falling behind the projection 20 to maintain the shutter in tension. At the same time a projection on the frame 4 engages the shutter of the dark slide which is thus withdrawn. Pressure on the operating member removes the pawl 18 from the path of the projection 20 to make the exposure. To vary the time of exposure a dashpot 61, Fig. 4, is provided, the plunger of which is connected to a pivoted plate 59 having an upstanding pin 63 which engages one end of a pivoted arm 70, the opposite end of which is formed as a catch 69 and projects into the path of the shoe 16. On its return movement the shoe is arrested by the catch, with the shutter open, until the arm 70 moving under the control of the dashpot has rotated sufficiently to move the catch 69 clear of the shoes. The travel of the plunger is governed by the setting of a bevelled plate 64, which on forward movement of the carriage permits a plate not shown to engage a pin 62 on the plate 59 so as to wi thdraw the plunger until the bevelled portion of the plate 64 is reached, when the pin 62 is freed. For bulb exposures, a plate 43 mounted below the operating member is moved by a pin-and-slot 50 operated by an external pointer, to bring a projection 71 behind the arm 70, the shoe 16 being thus held by the catch 69 until release of the operating member allows the projection 71 to rise clear of the arm 70. A rack and pinion may be used in place of the cord 15 and the rate of movement of the shutter blind may be regulated by a dashpot 49. A sliding plate may be substituted for the blind 9.
Patent GB-166232-A (GB)
Title: Improvements in carburettors for internal combustion engines
IPC: F02M9/12
Filed: 1919-07-15
Abstract: 166,232. Drevet, C. July 15, 1919. Spray carburettors.-The float chamber has an adjustable air inlet V<1> and an unrestricted passage C leading to the main air inlet, which is adjustable by means of a ring y. Fuel enters through an annular slit d in the wall of the airinlet passage, which surrounds a cylindrical member a. The mixture passes to the engine between the coils of a spring B, which are more or less opened by the action of a hand-operated cam g. When the coils are closed, as for idle running, air through a port l and fuel through a port n pass to the inside of the coil by a passage i. Fig. 5 shows a modified form in which the annular fuel inlet has a serrated wall and is formed in a plug throttle b'.
Patent GB-216724-A (GB)
Title: Improvements in methods and machines for coating cores
IPC: H01B13/12
Filed: 1923-07-09
Abstract: 216,724. Western Electric Co., Ltd., (Western Electric Co., Inc.). July 9, 1923. Rolling-machines; moulding pulp.-A core is coated with pulp by depositing pulpous material on a moisture - removing member, such as a foraminous member, removing the material from the member and then depositing it on the core. The pulp is circulated through the tanks 11, 12 by the inlet pipes 22, 23 and the outlet pipes 24, 25 and is deposited on the fine wire mesh, which covers the perforations in the peripheries 15 of the drums 13, 14, by maintaining the pulp in the drums at a lower level B than the level A of the pulp in the tanks by means of the syphon pipes 20, 21. The rotating belts 26, 34, preferably made of felt, are pressed against the drums by the rollers 31, 39 and the pulp on the drums is thus transferred to the belts. The ribbons of pulp on the belts are squeezed on the core, fed from the supply reel 42, by means of the rollers 28, 36. The core carrying the pulpous ribbons is passed between the roller 45, preferably made of rubber, and the roller 44, preferably a drum covered with felt, which remove the greater portion of the liquid from the pulp and tend to mat or felt the fibres. The core is then drawn through a former 50 which wraps the projecting edges of the ribbon around the core as described in Specification 204,463. The coating is dried by passing the core over a pair of wide hollow drums 52, 53 heated internally and having a plurality of grooves 54, all of which are traversed by the core before passing to the receiving-drum 55.
Patent GB-853713-A (GB)
Title: Improvements relating to lighting apparatus for display and other purposes
IPC: G09F13/00
Filed: 1958-06-04
Abstract: 853,713. Changing signs. GARDNER, J. H. April 28, 1959 [June 4, 1958], No. 17777/58. Class 3(1) A changing display sign comprises a plurality of fluorescent tubes 16 mounted between a pair of plates 12, 13 which are inter-connected by a shaft 17 driven by an electric motor 27 through a Geneva stop mechanism. The tubes are of different colours and are cyclically brought into register in turn with the opposed contacts 22 of an operating circuit for details of which Fig. 3 (not shown) should be referred to.
Patent GB-1080035-A (GB)
Title: Improvements in or relating to brake discs for disc brake arrangements
IPC: F16D65/12
Filed: 1966-04-22
Abstract: 1,080,035. Disc brakes. KNORR-BREMSE G.m.b.H. April 22, 1966 [April 23, 1965], No. 17777/66. Heading F2E.  A disc for a disc brake, particularly for a rail vehicle, comprises a ring 2 having radially inwardly directed lugs 5, a hub member 1 having radially outwardly directed lugs 4 which either overlap, as shown, or are bifurcated to extend on opposite sides of the lugs 5, and longitudinally slotted tubular collets 6 which are passed through aligned axial holes in the two sets of lugs with their slots 7 arranged to face either forwardly or rearwardly whereby limited relative radial movement, due to thermal expansion, can occur between the lugs 4 and 5, but substantially no relative rotational movement between the ring and hub can take place. Preferably, the collets are strengthened against the rotational torque of the disc by support members (8, Fig. 3, not shown) which are conveniently formed as bolts (9, Fig. 4, not shown) having flats on the radially outer and inner portions of their shanks to permit the relative radial movement between the lugs 4 and 5, nuts being fitted on the bolts to secure them.
Patent GB-384684-A (GB)
Title: Improvements in and relating to sound reproducing apparatus
IPC: G11B7/00
Filed: 1931-06-19
Abstract: 384,684. Optical sound reproducing apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Taylor, J. B. ; 1279, Lowell Road, Schenectady, New York, U.S.A.) June 19,1931, No. 17816. Convention date, June 20, 1930. [Class 40 (ii).] Comprises a sound-reproducing apparatus adapted for use in playing, examining, and analysing any desired portion of a film sound record. The sound film 4, Fig. 1, is fed through a casing 1 by a sprocket 31. Journalled in bearings in the casing 1 and in a plate 7, Fig. 2, rigid therewith, is a shaft 8 to which is secured an optical system 9. On the shaft 8 is mounted freely a drum 12 which supports the sound film 4, one edge of.the film overhanging the end of the drum. The optical system 9 is provided with a bracket 15 to which is secured a photo-electric cell 16. After passage through the sound record, the reproducing light beam is reflected on to the cell 16 by a mirror 18 carried by a bracket 19 which is mounted pivotally at 20 to the casing of the optical system 9. Electric current for the light source of the optical-system and the photoelectric cell 16 is supplied by leads which are run through the shaft 18 and 'are connected with clip rings 25 which contact with brushes 26. A worm 29 on the shaft of the driving motor 28 meshes with a worm wheel 30 which transmits rotary movement to the optical system 9 and to the sprocket 31 by means of a differential device 34 so that the optical system and the film are given a relative speed suitable for sound reproduction. Mounted on the shaft 39 of the sprocket 31 and on the shaft 8 are brake discs 40, 41, respectively, against one or the other of which a brake 42 is adapted to be passed. The brake 42 is mounted on an arm 43 pivoted to the casing 1 and biased to engage either of the brake discs by a spring 45. By means of a finger-piece 46 the brake may be thrown from one brake-disc to the other. For ordinary sound reproduction, the apparatus is operated with the brake 42 engaging the disc 41 so that the optical system 9 is held stationary while the film is fed through the machine. If repetition of the reproduction from a particular part of the record is desired, the brake 42 is made to engage the disc 40 to stop the movement of the film and allow rotation of the optical system 9 so that reproduction of that part of the record supported by the drum is repeated. For more closely locating a particular word or tone, two shields 48, 49 rotatably .mounted on the bearing of the shaft 8 are adjusted so that only the required portion of the record is available between the adjacent edges of the shields for passage of the light beam therethrough.