baber/WOPTO huggingface dataset:
Patent GB-790595-A (GB)
Title: Dealkylation of aromatic hydrocarbons
IPC: C07C4/16
Filed: 1956-06-29
Abstract: Alkylated aromatic hydrocarbons are dealkylated in the presence of hydrogen and in the presence of a catalytically inert finely divided solid at 1100-1600 DEG  F., 400-1000 p.s.i.g. and 2-120 seconds by heating the vaporized hydrocarbon and hydrogen, entraining the solid, heated to a higher temperature than the gaseous mixture, to form a disperse phase having a solids density of 2-20 pounds per cubic foot which is passed through an elongated reaction zone preferably having a length/diameter ratio of 10-120:1.  The feed stock may be toluene, xylenes, ethyl benzene, mesitylene, methyl naphthalenes, dimethyl naphthalenes methylethyl naphthalenes and trimethyl naphthalenes. The solid which may be alpha alumina, quartz, carborundum or mullite, and the particle size is preferably 100-400 mesh (American Mesh Standard).  The amount of hydrogen is in the range 2000-10,000 standard cubic feet per barrel of aromatic hydrocarbon.
Patent GB-695608-A (GB)
Title: Dripless spouts or lips for containers
IPC: B01L3/00
Filed: 1951-08-28
Abstract: 695,608. Jugs &c. with dripless spouts. FREED, C. W. Aug. 28, 1951 [Aug. 29, 1950], No 20248/51. Class 128 [Also in Group XVII] . A jug, paper cup &c. has an asymmetric dripless spout 11 one wall of which makes a different angle with the adjacent wall of the vessel than does the other wall, thus forming a channel portion 12. The edge of one wall of the spout may form an acute angle of 15 to 75 degrees, preferably 45 degrees, with the rim of the vessel, the edge of the spout's other wall then forming an obtuse angle with the rim. Part of the rim of the vessel may slope downwards towards the spout so that, when the vessel is in its normal position, the pouring area of the spout is below the plane of the rim.
Patent GB-187350-A (GB)
Title: A copying machine with a heated drying device
IPC: B41L7/08
Filed: 1921-07-28
Abstract: 187,350. Lichtenstein, E. Juy 28, 1921. Roller copying - presses; drying - apparatus; driving and stopping machines. - A heated drying device in conjunction with a copying machine is adapted to be driven independentlv of the latter. Mechanism for stopping the device a predetermined interval after stopping the copying machine is also described. As shown moist sheets cut off the web c by the knife d are carried by belts f, g to a known type of drying device comprising a heated cylinder h around which is arranged an endless band i. The latter may consist of wire cloth or of a number of individual members pivotally connected together to form a band. The sheets are passed between guides k, l to rollers m, n which deliver them on to a table o. The dimensions are such that a sheet is cut off before its front end reaches the cylinder h. The band i exerts sufficient pressure on the sheets to prevent their shrinking and, preferably, to cause them to stretch slightly. The casing e enclosing the drying device is adapted as a support for the copying machine a, and a fan p in the casing serves to remove the moist air. Fig. 2 shows the driving gear. A motor q driving the fan p rotates a rod r which by means of s drives the cylinder h and, through the coupling t and gears u, the copying machine. The hand lever for the coupling t is linked to a bell crank v carrying a finger w which is caused to engage a thread z on the rod r when the coupling is disconnected so as to actuate a vertical rod w' which after a certain interval releases a catch x holding the lever of the motor starter y. If the cylinder h is electrically heated the current may be automatically switched off when either the copying machine or the drying device is stopped or at an intermediate point.
Patent GB-627844-A (GB)
Title: A device for converting a rotary motion into a reciprocatory motion or vice versa
IPC: F16H21/36
Filed: 1946-07-08
Abstract: 627,844. Eccentrics. PATRIGNANI, T. July 8, 1946, No. 20388. [Class 122(i)] [Also in Group XXVIII] In a mechanism for converting the rotary motion of a shaft into a reciprocating motion of two opposed pistons 8, 9, of the type comprising a shaft 1 carrying an eccentric 2 having rotatably mounted thereon with the interposition of rolling members rings adapted to push the pistonrod terminals 4, 5, adjacent thereto, the piston rods 10, 12, being rigidly connected with the pistons, the eccentric solidly connected with the shaft carries three rings, the intermediate ring 3B acting on the rod 10 of one of the pistons and the two side rings 3A, 3C, actuating the rod 12 of the other piston, the piston rods being connected by a rigid cage member 7 fixed in an axially adjustable manner to one of the piston rods and resiliently connected to the other piston rod. The cage member has a sleeve at each end. one being screwed to the piston rod 10, the other housing a helical spring 6.
Patent GB-706437-A (GB)
Title: Apparatus for treating meat
IPC: A23B4/28
Filed: 1951-08-29
Abstract: 706,437. Injecting meat: AVERY, F. J. Aug. 29, 1951, No. 20410/51. Class 49 Apparatus for injecting curing liquid into meat comprises a head member mounted for up and down movement on a frame arranged over a support for the meat, a plurality of hollow needles spaced from each other at a distance less than the width of the piece of meat to be treated, which needles are supplied with curing liquid; extend downwards from the head member, and are provided with discharge openings at their lower ends, mechanism for moving the head member to and from the meat support in order to effect penetration by the needles into, and removal of the needles from, the meat, mechanism controlled in conjunction with movement of the head member to force curing liquid from the needles into the meat each time the needles penetrate the meat, and, connected with the mechanism for moving the head member, means to advance the meat support under the head member a predetermined distance less than the length of the piece of meat each time the head member is moved to and from the meat support. With the apparatus of Figs. 1 and 2 the head 12 is moved downwards on posts 11 towards a piece of bacon on the carrier 33 by means of a pair of levers 14 operated by a handle 17 on a shaft 15, and, on release of the handle 17, the head moves upwards by reason of springs 13 compressed on the downward movement. The hollow needles 18 extending from the head 12 are adjacent to presser feet 28, which are mounted for sliding vertically with respect to the head 12 against springs 39, and, upon engagement of the presser feet with the bacon, their further downward movement is stopped; continuing downward movement of the head to force the needles into the bacon causes tilting of levers 31 to press down pistons 26 in cylinders 22 of curing liquid, and so. drive curing liquid through the discharge openings of the needles into the bacon; subsequent upward movement of the head causes withdrawal of the needles from the bacon and then lifting of the presser feet from the bacon, and also causes upward movement of the pistons 26 to recharge the cylinders 22 with curing liquid from a source of supply thereof. Upward movement of the head 12 also brings about operation of the levers 14 to rotate the shaft 15 and so cause arms 38 thereon to slide pawls 35 and advance the bacon carrier 33 one step.
Patent GB-604599-A (GB)
Title: Synthetic resin and process of making same
IPC: C08G8/26
Filed: 1945-08-09
Abstract: Phenol-aldehyde resins of the revolate type are made by subjecting a ligno-cellulose material, such as bagasse, cornstalks, wood or straws, to hydrolysis with acid in the presence of live steam under pressure and concurrently reacting phenol with the liberated aldehydes and ketones.  Further aldehyde or a substance yielding an aldehyde and plasticizers may be added to form a moulding composition.  In the examples: (1) dry bagasse was digested with live steam and concentrated sulphuric acid in the presence of phenol; (2) the novolate of example (1), phenol, sodium hydroxide and formaldehyde were refluxed to form a thermosetting resin; (3) the novolate of example (1), cresylic acid, sodium hydroxide and commercial formaldehyde were refluxed, to form a heat-hardenable resin; (4) the product of example (2), bagasse, hexamethylene tetramine, calcium hydroxide and glycerol were mixed on hot rolls, to form a hot moulding composition.  In example (6) the novolate of example (1), calcium hydroxide, hexamethylene tetramine and zinc stearate were ball-milled with the addition of bagasse digested with milk of lime to yield a hot moulding composition, and in (7) the novolate resin of example (1), calcium hydroxide, hexamethylene tetramine and zinc stearate were ball-milled with bagasse digested with milk of lime and a further composition was added comprising bagasse which had been digested with 1 per cent sulphuric acid, dried and ground, aniline and an equal weight of furfural.  U.S.A. Specifications 1,932,255 and 2,109,466 are referred to.
Patent GB-531919-A (GB)
Title: Improvements in and relating to cowl, aspirator or like devices for chimneys
IPC: F23L17/02
Filed: 1939-07-13
Abstract: 531,919. Chimney cowls. TRIAIRE, C. July 13, 1939, No. 20480. Convention date, July 19, 1938. Drawings to Specification. [Class 25] A cowl, aspirator or like device for chimneys comprises a chimney portion attached to the stack and a deflector member adjustably mounted above the chimney portion deflecting all the smoke or gases downwardly into a surrounding cylindrical member provided with a downwardly directed outlet for the solid material separated from the smoke or gases. The invention is described with reference to the same cowl as is described in Specification 531,918.
Patent GB-275627-A (GB)
Title: Improvements in process for extracting and purifying the fatty materials contained in the residues of the washing waste waters proceeding from the washing of bodies containing fatty substances and more particularly of wool
IPC: C11B11/00
Filed: 1927-08-03
Abstract: 275,627. Overstraeten, C. van. Aug. 6, 1926, [Convention date]. Recovering fats from waste waters. - Fat is extracted from wool-washing and other wash waters by washing with lukewarm water the 'precipitates obtained by froth flotation, precipitation by chemicals, or other known process, then boiling with sodium carbonate or other alkali, heating and drying may be in vacuo or by injection of air, maintaining at about 105‹ C. under normal reduced, or increased pressure, decanting the fat from the settled impurities, and boiling with water. The fat may be further purified by centrifuging.
Patent GB-981172-A (GB)
Title: Magnets
IPC: H01F1/06
Filed: 1962-05-28
Abstract: 981,172. Magnetic structures. GENERAL ELECTRIC CO. May 28, 1962 [June 29, 1961], No. 20503/62. Heading H1H. A permanent magnet comprises ferromagnetic whiskers of constant diameter disposed in a matrix. The whiskers may be iron cobalt, nickel, or alloys thereof and may have diameters of less than 1000 . They may be produced by evaporation using the method disclosed in Specification 978,790. The matrix may be lead, or a plastic material, e.g. polyvinylidene chloride, and a magnetic field may be applied during the removal of solvent from the matrix. The particles may have a very thin oxide coating.
Patent GB-1340107-A (GB)
Title: Polycarbonate solutions and a process for their production
IPC: C08G64/20
Filed: 1971-04-19
Abstract: 1340107 Polycarbonate solutions BAYER AG 19 April 1971 [2 Feb 1970] 20528/71 Heading C3R A process for producing a solution of a high molecular weight polycarbonate comprises forming a solid solution of a polycarbonate with a molecular weight in excess of 30,000 by removing the solvent from a solution of the polycarbonate at a temperature below the melting point of the polycarbonate under shear stressing, and redissolving the solid solution. Crystallization nuclei may be added to the initial polycarbonate solution. The removal of solvent and shear stressing may be carried out in a singlescrew or multiple-screw extruder. The example describes forming a solution of a polycarbonate based on 4,4<SP>1</SP>-dihydroxy-2,2-diphenyl propane.
Patent GB-1492034-A (GB)
Title: Clip for covering a gap between edges of adjacent strips
IPC: E06B3/96
Filed: 1975-06-10
Abstract: 1492034 Clip for use with blinds VENTOLITE nsb Ltd 10 June 1975 [9 May 1974] 20535/74 Heading E1J A clip 6 for covering the gap between the mitred corners of strips 3 which may be the side walls of channel section members 1, 2 mounted at the sides and bottom of a window to prevent light passing the edges of a blind. The clip may be of plastics material.
Patent GB-148553-A (GB)
Title: Improvements in and relating to parachutes
IPC: B64D17/00
Filed: 1920-07-10
Abstract: 148,553. Heinecke (nÚe Thyrauer), M. Aug. 25, 1917, [Convention date]. Parachutes.-A parachute is carried in a container and is attached to the aviator and to the aircraft by separate ropes, the cunnexion to the aircraft being rupturable and adapted to withdraw the parachute from the container, which remains attached to the aviator, after it has dropped clear of the aircraft. The parachute is packed in a cylindrical container 10, Fig. 11, attached to the aviator by a cord 11, the ropes 4 for attaching the parachute to the aviator hanging outside the container. The container is closed by a lid 12 secured by a wire 15 passed through eyelets 14 on the edges of the lid and container. A rope 8 connects the centre 16 of the wire 15 to the aircraft, and a weaker cord 9, passing through a bole in the lid 12, connects the rope 8 to the apex of the parachute. Normally, the aviator may sit on the container, but when he jumps overboard the container follows and the rope 8, which is sufficiently long to enable the aviator and container to get clear of the machine before it becomes taut, withdraws the wire 15 and the cord 9 extracts the parachute and ultimately breaks. According to the Specification as open to inspection under Sect. 91 (3) (a), the ring 6, Fig. 14 (Cancelled), of the air-escape orifice is connected to a cord 7 so that the aviator may pull down the ring 6 into the position shown to retard his descent, or by pulling the cord until the edge of the parachute is uppermost he may accelerate the descent. This subject-matter does not appear in the Specification as accepted.
Patent GB-706405-A (GB)
Title: Improvements in or relating to machines for separating sheets from piles
IPC: B65H1/30
Filed: 1950-08-18
Abstract: 706,405. Feeding sheets. BACKHOUSE, H. T. Aug. 16, 1951 (Aug. 18, 1950], No. 20559/50. Class 100 (1) A sheet separating machine of the kind in which the sheets are separated and removed one by one from the top of a pile of sheets 8, supported on a pile-board 7, the pile and board being elevated, as the sheets are removed, to maintain the top of the pile at a constant height, and having at least one front guide bar 2 for the pile and at least one side guide bar 1 for the pile, the side guide bar 1 being adjustable for different widths of sheets is characterized in that the side guide bar 1 is arranged to seat on top of the pile-board 7 and is arranged automatically to move out of the path of the board 7 as the board is elevated, The side guide bars are provided with slots 3 co-operating with studs 4 on the front guide bar 2 so that as the pile-board is raised the side guide bars 1 move upwardly with the pile-board and then, as they come to the end of their range of vertical movement, forwardly out of the path of the board 7, being retained in this position until removed by virtue of -upward extensions 6 in the slot 3. A plurality of studs are provided, and the side guide bars co-operate with two or more of these at a time so that after being moved forwardly by the pile-board the guide bar 1 may be removed and replaced on higher studs so that pile building may continue. The invention is described as applied to the sheet separator described in Specification 605,424. If desired the slots 3 may be provided in the front guide bars and the studs 4 on the side guide bars. Specifications 427,041, 475,892, 489,405 and 615,133 also are referred to. Specification 674,842 is referred to in the Provisional Specification.
Patent GB-1036585-A (GB)
Title: Improvements in and relating to the manufacture of dial faces for clocks and watches
IPC: G04B19/10
Filed: 1963-05-23
Abstract: 1,036,585. Clocks and watches. HUGUENIN & CIE. May 23, 1963 [July 24, 1962], No.20580/63. Heading G3T A clock or watch dial 1 with raised signs or figures 7, Figs 1 to 5 (not shown) is made by injecting a molten material from the back of the dial through orifices 3 therein, so as to fill cavities of the signs or figures provided in a mould 6 placed over the face of the dial. A low melting point Pb-Sn-Sb alloy or a synthetic resin may be used. A glue is admixed with the material to ensure adhesion of the signs and these are linked together at the back of the dial by the material filling a groove 4. A colouring constituent may be added, or a film of precious metal may be deposited on the mould 6 to form a coating on the finished dial. The dial plate is located by pins 2 in the base 8.
Patent GB-204176-A (GB)
Title: Improvements in telephone exchange systems
IPC: H04M15/08
Filed: 1922-07-27
Abstract: 204,176. Western Electric Co., Ltd., and Deakin, G. July 27, 1922. Semi-automatic exchange systems.-In the case of a call from a private branch exchange necessitating the service of an operator at the main exchange, she is enabled to check the identity of the calling line, in order to charge up the call for example, by establishing a tone circuit over a particular line of the P.B.X. group and back over the test wire of the calling line to her head set. First arrangement, Fig. 1. The test wires of the P.B.X. lines are connected to the bank of a hunting switch CFS to which the tone circuit is connected over checking group selectors 1GGS, 2GGS, 3GGS. The calling subscriber connects himself to the operator's set OTS through callfinders 1LF, 2LF and selectors 1GS, 2GS, 3GS, and gives the wanted number and his own number. The operator throws the check dialling kev CDK to connect her dial D across the wires 2, 3, which are connected to a register-controller R if the checking switches are of the power-driven type. By dialling the number of the calling line, connection is made to the check final switch CFS, which is then set on the first line of the P.B.X. On throwing of the check tone key CTK, a relay 4 is energized, and connects up relays 6, 7 in series, closing the circuit of the driving magnet P of the switch CFS. When the switch reaches the terminal corresponding to the calling line, a tone is sent from the source CT over the test wiper to the operator's set OTS. The switch is arrested on the last line of the P.B.X. by the energization of a relay 8, which also removes a shunt around the high-resistance winding of the relay 7 so that the relay 6 de-energizes and short-circuits the highresistance winding of the relay 4, so that a relay 5 operates and lights a lamp 11. Second arrangement, Fig. 2. The check final switch CFS is set according to the calling subscriber's number in any suitable manner, and is thereby connected to a common wire 22 joined to the test wires of each of the P.B.X. lines through a condenser such as 23, 24. On throwing of the check tone key CTK, the tone circuit is completed from the source CT over the circuit 27 and the test wire of the calling line. Manual exchange systems.-The sleeves of the jacks of the P.B.X. line are connected through condensers to a common wire, and an order wire takes the place of the check final switch. In response to a request from the local operator over the order wire to test the calling line, the B operator tests the sleeve of any line of the P.B.X., and a tone is heard by the local operator.
Patent GB-1059633-A (GB)
Title: n-stable circuit arrangement
Inventor: BALDWIN JOHN LEWIS EDWIN
IPC: H03K3/12
Filed: 1963-05-23
Abstract: 1,059,633. Electronic counters. RANK BUSH MURPHY Ltd. May 25, 1964 [May 23, 1963], No. 20601/63. Heading G4A. [Also in Division H3] A multistable circuit has associated with each active element an auxiliary active element which conducts during the changeover of the main elements; each auxiliary element is connected so that it passes current through resistors in the output and common electrode circuits of the corresponding main element, and the input electrode of each auxiliary element is joined to an electrode of the corresponding main element at which a potential exists tending to make the auxiliary element conductive; the input pulses are applied in parallel to the input electrodes of the auxiliary elements in a polarity tending to make them conductive. In Fig. 1 the main transistors 1, 2 of a bi-stable circuit have collector resistors 4, 5, 6, 7 and common emitter resistor 3 which are shared with auxiliary transistors 14, 15. Initially transistor 1 (say) will be conducting and transistors 2, 14 and 15 cut off. The input trigger pulse is applied to be bases of both transistors 14, 15 but only 15 will conduct since its base is connected via resistor 17 to the base of the conducting transistor 1. Conduction of transistor 15 cuts off transistor 1 by the current through the common emitter resistor 3, and the potentials of the two output terminals 1, 2 change in a complementary manner. At the end of the input pulse transistor 15 cuts off and transistor 2 starts to conduct, maintaining the potential at terminal 2 constant. A second input pulse starts transistor 14 conducting and transistor 1 then takes over to restore the circuit to its original state. If the output signals are used to control gating circuits there is thus no period in which both gates are open or neither is open. The circuit can be set in the state in which transistor 1 is conducting by applying a positive pulse to the collector of 1 via a diode 25. In a tri-stable arrangement (Fig. 6) three main valves 100, 101, and 102 have a common cathode resistor 135 and the anode of each is joined to the grids of the other two by resistors 113-118. Firing in the correct sequence and without delay is ensured by providing only one of each pair of resistors with capacitors 119, 120, 138. Three transfer valves 121, 122 and 123 are joined in parallel with the main valves and the input pulse at 127 is applied to their grids simultaneously. If valve 101 (say) is conducting, all the other valves will be cut off and only valve 121 will conduct as a result of the input pulse. Current through resistor 103 produces a fall in potential which is applied through capacitor 119 to cut off valve 101. At the end of the input pulse valve 121 is cut off and valve 100 takes over since its grid is connected to the anodes of the two non- conducting valves 102, 123. A transistor tristable circuit and a transistor quadristable circuit are also described (Figs. 3 and 4, not shown), the latter using NPN transistors.