baber/WOPTO huggingface dataset:
Patent GB-1420886-A (GB)
Title: Preparation of polyene compounds and intermediates for the use therein
IPC: C07C69/145
Filed: 1974-01-29
Abstract: 1420886 Polyene compounds TEIKOKU CHEMICAL INDUSTRY CO Ltd 29 Jan 1974 [31 Jan 1973 15 June 1973 (2)] 03992/74 Heading C2C Compounds of formula where R<SP>1</SP> is a protected or unprotected hydroxyl or in which R<SP>11</SP> and R<SP>111</SP> are carboxyl or a group convertible to hydroxyl on hydrolysis, m is a positive integer and n is 0 or a positive integer are prepared by dehydrating a compound Conventional dehydrating agents in an inert solvent may be used. The starting material may be prepared by reducing a novel carbony] compound by treatment with a metal hydride or aluminium alkoxide in an inert solvent. This carbonyl compound may be prepared by reacting where X is the residue of an acid, to give followed by hydrolysis and decarboxylation. The carbonyl compound may be prepared by (1) reacting with RCH 2 X followed by hydrolysis and decarboxylation to the corresponding aldehyde which is reacted with RCH 2 X to give the hydroxy compound or alternatively (2) by reacting with dialkyl carbonate in the presence of a basic catalyst. The process may be used to increase the number of isoprenyl units in a chain by the number n + 1 where n is 0 or a positive integer. Examples describe the preparation of fornesylgeranyl acetate starting from geranylacetone through 2,6,10-trimethyl-5,9- undecadienal, ethyl 3,7,11-trimethyl-6,10-dodecadien - 2 - ol - 1 - carboxylate, ethyl 3,7,11- trimethyl - 6,10 - dodecadien - 2 - one - 1 - carboxylate, 3,7,11,15,19 - pentamethyl - 2,6,14,18- eicosatetraen - 10 - on - 1 - ol, 1 - acetoxy- 3,7,11,15,19 - pentamethyl - 2,6,14,18 - eicosatetraen - 10 - one, -1,10-diol, and 1-acetoxy- 3,7,11,15,19 - pentamethyl - 2,6,14,18 - eicosatetraen - 10 - ol; fornesyl acetate from 3,7,11- trimethyl - 2,6 - dodecadien - 10 - on - 1 - ol, through 1 - acetoxy - 3,7,11 - trimethyl - 2,6- dodecadien - 10 - one; 4,8,12 - trimethyl - 3,7- tridecadien - 11 - one - 1,1 - dicarboxylic and ethyl 3,7,11 - trimethyl - 6,10 - dodecadien - 2- one-1-carboxylate; silanesyl acetate through 2,6,10,14,18 - pentamethyl - 5,9,13,17 - nonadecatetraenal, ethyl 3,7,11,15,19 - pentamethyl - 6,10,14,18 - eicosatetraen - 2 - ol - 1- carboxylate and -2-one-1-carboxylate, 3,7,11,- 15,19,23,27,31,35 - nonamethyl - 2,6,10,14,18,- 26,30,34 - hexatriacontaoctaen - 22 - on - 1 - ol or alternatively through 1-acetoxy-3,7,11,15,- 19,23,27,31,35 - nonamethyl - 2,6,10,14,18,26,- 30,34 - hexatriacontaoctaen - 22 - ol; and decapenyl acetate through 3,7,11,15,19,23,27,31,- 35,39 - decamethyl - 2,6,10,14,18,26,30,34,38- tetracontanonaene - 22 - on - 1 - ol and 1 - acetoxy - 3,7,11,15,19,23,27,31,35,39 - decamethyl- 2,6,10,14,18,26,30,34,38 - tetracontanonaen - 22- ol. The compounds are useful in the preparation of co-enzyme Q.
Patent GB-114192-A (GB)
Title: Improvements relating to the Head Lights of Motor Vehicles.
Inventor: GOOLD LEWIS WILLIAM
IPC: B60Q1/124
Filed: 1917-03-21
Abstract: 114,192. Goold, L. W., (Powell, F. H.). March 21, 1917. Vehicular lamps, directing.-Head-lamps, of the kind which are pivoted and connected to the steering-mechanism so that the light is always directed in a line parallel to the plane of the steering-wheels, have the pivotal mountings formed with adjustable supports for accommodating lamps of various sizes. The part of the lamp bracket b supporting the lamp may be in the form of a horizontal circular plate b con- .nected to and supporting an upper circular plate a<8>, both plates having quadrant ball-bearing tracks a<4>. The upper plate has ears a<5> with slots a<6> in which the lamp-supports n are adjustably clamped, to accommodate lamps of various sizes. Arms a' on the lamps are connected hy a rod c to which motion is transmitted from the steering- rod c by an adjustable screw-connexion d, d'.
Patent GB-908166-A (GB)
Title: Improvements relating to miniature electromagnetic relays
IPC: H01H51/01
Filed: 1961-02-03
Abstract: 908,166. Electromagnetic relays. SIEMENS & HALSKE A.G. Feb. 3, 1961 [Feb. 3, 1960], No. 4145/61. Class 38 (5). In a vibration-proof electromagnetic relay a moving contact 1b is carried on a resilient rod 1 and is moved by a leaf spring la engaged by an insulating member 2a on the armature 2. The relay is polarized by a permanent magnet 4 so that the direction of movement of the armature depends upon the direction of energization of the coil 5. When the armature is moved anticlockwise, the member 2a bears on the spring la to move the contact 1b from engagement with a fixed contact 3a into engagement with a second fixed contact 3b. A second set of changeover contacts (Fig. 2, not shown) are actuated by an insulating member 2a<SP>1</SP> on clockwise rotation of the armature 2. The rod 1, contact 1b and leaf spring 1a may be formed as an integral unit of contact material or the contact 1b and leaf spring 1a may be an integral unit fitting as a sleeve over the free end of the rod 1. The relay may be hermetically sealed.
Patent GB-557754-A (GB)
Title: Quinoline derivatives
IPC: C07D401/04
Filed: 1942-03-30
Abstract: 557,754. Quinoline derivatives. BASFORD, F. R., COATES, H., HEILBRON, I. M., COOK, A. H., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. March 30,1942, No. 4197. Addition to 544,190. Sample furnished. [Class 2 (iii)] Quinoline derivatives are prepared by treating an α, #, or γ-aminophenylpyridine the phenyl radical of which carries one or more of the following substituents bromo, iodo, alkyl or alkoxy of at least two carbon, atoms, hydroxy and aryloxy, but which has free at least one of the positions ortho to the amino group, with glycerol and sulphuric acid in the presence of an oxidizing agent. The aminophenylpyridines used as starting materials are prepared as described in Specification 518,886. Oxidizing agents mentioned include arsenic oxide, nitrobenzene and m-nitrobenzenesulphonic acid. In examples, (1) 3-amino-4- ethoxyphenylpyridine is treated with sodium m-nitrobenzenesulphonate, sulphuric acid and glycerol to give a mixture of isomers of 5- pyridyl - 8 - ethoxy - quinoline; (2) 3 - amino - 4-phenoxyphenylpyridine is treated as in example (1) to give the corresponding 8- phenoxyquinoline; (3) 3 - bromo - 4 - aminophenylpyridine is treated as in example (1) to give 8 - bromo - 6 - pyridyl quinoline isomers; (4) 2 - amino - 4 tert. - butyl - phenylpyridine is treated as in example (1) to form mixed 5 - tert. - butyl - 8 - pyridylquinolines; (5) x - (4 - hydroxy - 3 - aminophenyl)-pyridine is treated as in example (1) to form 8 - hydroxy - 5 - (x - pyridyl) - quinoline. A sample has been furnished under Sect. 2 (5) of the Acts of 5-(α-pyridyl)-8- iodoquinoline prepared from α-(3-amino-4-iodophenyl)-pyridine by treatment with sodium-mnitrobenzenesulphonate in the presence of glycerol and sulphuric acid followed by neutralization with ammonia and extraction with benzene.
Patent GB-285061-A (GB)
Title: Improvements in centrifugal separators
IPC: B04B7/04
Filed: 1928-02-10
Abstract: 285,061. List, H. Feb. 10, 1927, [Convention date]. Casings; charging and feeding.-A centrifugal clarifier for liquids has a hinged cover with feed and discharge passages provided in the hinge. The drum c is covered by the dome a which has eyes p engaging a spindle e, thus forming a hinge. One eye p has a seat for a cone valve f connected to a feed pipe g and communicating with a duct h in the dome. The other eye p has a passage 'q communicating between .the discharge pipe i and the duct k in the cover. A collecting channel is formed by an annular flange n in the dome. When the cover is down liquid is supplied through the pipe g, the valve f and, the duct h to the centre of the drum; the high speed of the drum causes the clarified liquid tobe thrown into the dome a where it runs behind the flange n and passes out through the duct k to the pipe i. When the cover is raised the duct h is removed from the port of the valve f so that the inlet for the liquid is closed.
Patent GB-1206008-A (GB)
Title: Logic circuit
Inventor: PRIEL URY
IPC: G06F7/50
Filed: 1968-01-29
Abstract: 1,206,008. Digital electric full adder. MOTORALA Inc. 29 Jan., 1968 [14 Feb., 1967], No. 4456/68. Heading G4A. [Also in Division H3]  A logic circuit comprises a first and second differentially switched transistors 32, 34 operating in nonsaturated current mode, first and second pairs of transistors 36, 38; 40, 42 connected to the first and second transistors 32, 34, the transistors in each pair alternately conducting in the nonsaturating current mode and separate pairs of differentially connected transistors 44, 46; 48, 50; 52, 54; 56, 58 connected to each pair of transistors 36, 38; 40, 42, one transistor of the first and second transistor, in each of the first and second pairs and in each separate pair of transistors being connectible to receive first, second and carry digits B, A and C respectively to generate an algebraic SUM and its complement outputs S, S from first and second emitter followers 62, 60 connected to the separate pairs of transistors. In the full adder shown when one of the transistors 46, 48, 52 or 58 is conducting the base of transistor 62 becomes low to give a SUM signal at 20 of a logical zero level with Vcc = 0 volts. When one of the transistors 44, 50, 54 or 56 is conducting the base of transistor 60 is low and the SUM output at 22 is zero. The adder provides a carry output Co and its complement Co from the transistor tree shown in the right half of Fig. 2 which includes current source transistor 31 and differentially connected transistors 33,35; 37, 39; 41, 43 operating in non-saturating current mode. A complement of the input carry digit C 1  is provided by C 1  at 18 and reference voltages Vcs, V 1  and V 2  are connected to the transistors 30-43. The adder may be formed as an integrated circuit. The circuit may be used as a subtractor.
Patent GB-728224-A (GB)
Title: Improvements in or relating to tools for use in mounting blades in turbine discs
Inventor: MORLEY FREDERICK WILLIAM WALTO
IPC: B25B7/00
Filed: 1952-02-20
Abstract: 728,224. Tools for holding turbine blades. ROLLS-ROYCE, Ltd. May 19, 1953 [Feb. 20, 1952], No. 4548/52. Class 61. Turbine blade units of the kind having three blades welded together at their outer shrouds but each having a separate fir-tree root are held by the tool shown in Fig. 1, when mounting them in fir-tree grooves 11a, 11b, 11c in the periphery of a turbine disc, Fig. 2. The blade unit is presented to the disc with the centre root attachment aligned with the end 12b of the central slot 11b means being provided in the tool to displace the fir-tree root, which is to engage in groove 11b, outwards from the position 15a to the position 12a and to displace the fir tree root, which is to occupy the groove 11c inwards from position 15c to 12c. The tool comprises a block 20 carried by a handle 22, the block having an open-ended, serrated groove 21 to receive the root of the middle blade. An adjustable stop 23 limits the amount by which the blade root is inserted in the groove. The fir-tree roots of the outside blades are received in serrated grooves 29, 30 provided respectively in blocks 27, 28 which are arranged to slide against side faces 25, 26 of the block 20. The faces 25, 26 each make an angle to the plane of symmetry of the groove 21 equal to the angle made by the radial centre lines 10a, 10c of the outside blades with the radial centre line 10b of the three blade unit. The blocks 27, 28 have keyways to receive guide splines 31 attached to each side of the main block. The guide splines are staggered so as to be at equal distances from the inclined end face of the main block 20. The blocks 27, 28 slide lengthwise but not transversely of the splines. Each block 27, 28 is retained in abutment with the faces 25, 26 respectively by a bridge piece 32 having feet 32a which extend through rectangular grooves in the top and bottom surfaces of the block and are retained by screws 33. Each block 27, 28 is provided with a pair of tongues 35 which slide on continuations of side face 25 or 26 and are held in engagement by the lateral flanges of a T-section member 36. Operating levers 39, each having a bored boss 39a which extends between the tongues 35, are pivoted to the main block 20 by set screws 40. The short arm 39d of each lever has a rounded end which engages in a groove 38 in the side of the corresponding block. By rocking the long arms of the levers towards the handle 22, the block 27 is moved outwards and the block 28 inwards.
Patent GB-766159-A (GB)
Title: Improvements in and relating to low pressure gas pumps
Inventor: DIXON STANLEY REGINALD MARTIN
IPC: G01N1/00
Filed: 1954-02-16
Abstract: 766,159. Liquid column gas pumps. COAL INDUSTRY (PATENTS), Ltd. May 16, 1955 [Feb. 16, 1954], No. 4549/54. Class 8(1) A low pressure pump for the pumping of gas by the displacement of a liquid, has a cylinder within which slides a slotted piston moved operatively in one direction by a cam rotating within the piston slot and inoperatively in the other direction by the pressure of liquid displaced during the operative stroke. The left-hand end of the piston 1 has a leather cup seal and is slidable in a cylinder 2, the left-hand portion of which is filled with mercury and connected by a mercury column in a pipe 7 to a gas analysis apparatus. The righthand portion of the piston 1 is slotted to receive a circular cam 3 eccentrically mounted on a spindle 4 driven through a reduction gear by an electric motor 5, the speed of which can be controlled by a knob 9. The stroke of the piston is limited by a screw-threaded abutment 6, the position of which is adjusted by rotation of a hand knob 6'. An indicator 10 shows the position of the cam or piston at any time.
Patent GB-511159-A (GB)
Title: Improvements in or relating to circuit arrangements, including dry rectifiers
IPC: H01C7/12
Filed: 1938-02-14
Abstract: 511,159. Rectifying alternating current; protective arrangements. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd.. CASWELL, A. E., and LAWRENCE, C. F. Feb. 14, 1938, No. 4594. [Classes 38 (ii) and 38 (iv)] In order to prevent damage to a copper-oxide or like dry contact rectifier by application of a voltage thereto in excess of that for which it was designed, there is connected in series therewith a unit of non-linear resistance material the resistance of which is independent of temperature and direction of current flow but varies with applied voltage. Such material may comprise silicon carbide with carbon and/or tungsten or molybdenum agglomerated under pressure and subsequently baked, and may be in the form of a disc or washer with a metal-sprayed surface as described in Specification 493,375, [Group XXXVII], the arrangement may be used to prevent damage to rectifiers by excessive peak voltage when operating on A.C. of peaky waveform, or for equalising the voltage applied to a number of rectifiers associated with devices responding to high frequency signalling currents as described in Specification 435,564, [Group XXXVIII], and located at different points in a power network.
Patent GB-1024554-A (GB)
Title: Improvements in and relating to compression spring elements of elastomeric material
IPC: F16F1/377
Filed: 1963-02-05
Abstract: 1,024,554. Spring elements of elastomeric material. GEORGE ANGUS & CO. Ltd. Feb. 5, 1963 [Feb. 5, 1962], No. 4626/63. Heading F2S. A compression spring made of a block of cellular elastomeric material 11, is provided with a number of cavities 14, 15, each having converging opposed wall surfaces extending substantially transversely to the loading axis 12 of the element, the cavities being smaller parallel to the loading axis than transversely thereto. The cavities 14, 15 which are respectively partially and completely of lenticular form, are open to the exterior of the block so that natural air movement effectively dissipates any heat developed during use. The block 11 is bonded to a base plate 13. In a modification, Fig. 2, a block 18, substantially of conical form and having a rounded apex 19 provided with a protective cap 20, is bonded to a circular base 21 having a central hole 22 in communication with a blind vertical cavity 23. Inclined cavities 24, 25, of lenticular form and extending in different planes, cross each other at right-angles.
Patent GB-546007-A (GB)
Title: Improvements in or relating to the construction of automobiles
IPC: B62D25/00
Filed: 1941-04-08
Abstract: 546,007. Vehicle bodies. BISHOP, W. H. April 8, 1941, No.4673. [Class 108 (i)] [Also in Group XXII] In making automobiles from pressings of substantially the same contour in a range of sizes, any component is formed in two or more parts which may be united e.g. by welding along a line or lines located at a point or points adjacent which there is little change of contour, the parts being united directly for an automobile of the largest size, but being first trimmed off adjacent the meeting edges before uniting in the case of the smaller sizes. While two or more sets of dies are required for making a component, a separate set is not required for each size. The wind screen panel 10 may be formed from two pressings welded at 11 or four pressings welded at 11 and 12, the smallest sizes being formed by first trimming off at 11 and 12. The rear panel may be formed of two pressings welded on the line 16, Fig. 4, and the floor assembly from three parts 13, 14, 15, trimmed if required at the inner and front edges. The windscreen lower rail, front floor assembly and the rear parcel shelf may be similarly formed in two parts and the rear seat pan assembly in three parts. In making automobiles in which the chassis and body form a unitary structure each side member may be formed as two pressings welded about the middle of the chassis. Side panel pressings can be divided at the middle of the door openings. Specification 534,496 is referred to.
Patent GB-190943-A (GB)
Title: Improvements on flywheels of internal combustion engines
IPC: B25D15/02
Filed: 1921-06-30
Abstract: 190,943. Bacher, G. E. June 30, 1921. Balancing moving parts in engines of unspecified type.-In an internal-combustion engine having internal fly-wheels 1, the outer faces of the fly-wheels are machined concentrically, while the inner faces 3 are machined eccentrically, in order to form balancing masses opposite the crank pin. Specification 17994/15, [Class 7 (ii), Internal-combustion engines, Arrangement &c. of], is referred to.
Patent GB-223480-A (GB)
Title: Improvements in ornamental buttons
IPC: A44B1/04
Filed: 1924-02-25
Abstract: 223,480. Spaver, N., and Halperson, M. Feb. 25, 1924. Buttons; buttons, apparatus for making. - A button adapted for ornamental or fastening pur poses has a face 10, Fig. 2, of fabric material or the like formed into a number of upholstered outstanding pleats or folds arranged to form an ornamental figure. The material of the face is pressed in a heated mould or otherwise treatee to give it the desired form, and a disc 11 of gummed paper or the like may then be attachec to the back preparatory to assembling it with the body 12 of the button, the cardboard back mem ber 13, and the cloth cover 14. Instead of the cardboard back member 13 and covering 14, a metal back member may be substituted. Fig. 4 shows a form of apparatus for pleating the fabric face 10 of the button. It comprises a number of relatively-movable plungers 17, 18. 19 contained in a housing 20, heated by an electric heater 2 to co-operate with a female die 15. After pleat ing, the disc 11 is stuck to the face and the covering material 10 is pressed-un between dies around a body portion 12. The cardboard bad member 13 with its covering is then forced be tween the dies 15, 21, Fig. 9, into the centre o: the body portion 12 to form a button of the finished form shown in Fig. 2.
Patent GB-562827-A (GB)
Title: Improvements in or relating to double helical cutters such as are used in gear cutting machines
IPC: B23F21/08
Filed: 1943-03-27
Abstract: 562,827. Tools. JACKSON & CO., Ltd., P. R., and SUMMERSKILL, C. H. March 27, 1943, No. 4985. [Class 83 (iii)] In a rack-type cutter for cutting the teeth of double helical gears, wherein the cutter is built up from a number of separate teeth, the teeth D<2> have bases d of rectangular section and are secured to a backing plate c<3> by screws c. This assembly is mounted in a cutter-box C, longitudinal pressure being applied to the teeth by screws E and packing pieces E<1> and lateral adjustment being effected by screws e, and a box is mounted in the usual manner in each ram of the machine, one set of teeth being arranged for right hand and the other for left hand cutting of double helical gears. The leading face d<1> of each tooth is perpendicular to its direction of cutting and the front rake is negative, the degree of rake varying according to the helix angle of the gear being cut so as to ensure that the top cutting edge coincides with the central plane of helix intersection along the whole of its length at the end of the cutting stroke. One inclined cutting edge d3 of each tooth lies in the front plane of the assembly, as shown in Fig. 2, and this plane projects beyond the helix intersection plane at the end of a stroke by 10 to 15 thousandths of an inch. The leading face d<1> is ground hollow to give cutting rake to the side edges d<2>, d<3> and each tooth may have a high-speed steel tip welded to a carbon steel body.
Patent GB-962079-A (GB)
Title: Steam trap
Inventor: BOCHKOROS WILLIAM
IPC: F16T1/16
Filed: 1963-02-07
Abstract: 962,079. Steam traps. CLARK-RELIANCE CORPORATION. Feb. 7, 1963, No. 4997/63. Heading F4U. A floating-disc type steam trap comprises a trap body 11 having inlet and outlet openings 12, 13 adapted for connection into a steam system and connected by passages 22, 23 to an intermediate chamber 21; the passages terminating at the intermediate chamber in two annular seating surfaces 26, 27, one spaced from and surrounding the other, and the intermediate chamber contains a free-standing disc 16 the bottom of which has sealing surfaces for engagement with the seating surfaces 26, 27. In operation, air and condensate entering the trap through the inlet 12 and central opening 20, force the disc 16 away from the seat member 15, allowing the air and condensate to pass through the trap to waste. A pressure build-up of flash steam from the last portion of condensate to enter the chamber 21, forces the disc back into contact with the seat member 15, thus closing the trap. Subsequent reduction of pressure in the chamber 21 due to heat losses, and to leakage through the bleeder passage 32, again permits lifting of the valve by a further accumulation of condensate.
Patent GB-138450-A (GB)
Title: Improvements in the method of and means for sinking dies
IPC: B21D37/10
Filed: 1919-02-28
Abstract: 138,450. Bees, T. M. Feb. 28, 1919. Forging-dies.-A die is sunk by forging on a steel pattern block or die a having the operative part b surrounded by a wall or flange c to prevent spreading of the metal, and preferably formed integrally with the block. At the foot of the inner wall, a step d may be formed to facilitate the measuring of the depth of the impression, and the setting of the sunk die for machining the face. Surrounding the part b may be an air-escape groove e communicating by holes f with grooves on the underside of the block.