baber/WOPTO huggingface dataset:
Patent GB-1430882-A (GB)
Title: Process for producing sulphonamides
Filed: 1974-04-17
Abstract: 1430882 Sulphonamides; 2-chlorethylamine hydrochloride SUMITOMO CHEMICAL CO Ltd 17 April 1974 16881/74 Heading C2C Sulphonamides of formula RSO 2 NHC 2 H 4 Cl in which R is a C 1 -C 6  alkyl group or an optionally substituted phenyl group are produced by reacting a sulphonyl halide of formula RSO 2 X, in which X is chlorine or bromine, with 2-chloroethylamine or a salt thereof in the presence of excess of 2-chloroethylamine or of an additional added base. The process may be carried out in a halogenated hydrocarbon solvent. Suitable salts for use as starting materials are 2-chlorethylamine sulphate, hydrochloride, hydrobromide or acetate. The hydrochloride may be prepared by chlorinating mono-ethanolamine hydrochloride with thionyl chloride and removing sulphur dioxide or sulphites from the mixture, the ethanolamine hydrochloride preferably being prepared by reacting ethanolamine in the presence of water, with a mixture of hydrogen chloride and sulphur dioxide obtained as a by-product in the chlorination step.
Patent GB-229563-A (GB)
Title: Improvements in mooring blocks
IPC: E02B3/24
Filed: 1924-07-14
Abstract: 229,563. Davis, R. H., (Mackenzie, C. W.). July 14, 1924. Mooring.-Mooring blocks are formed with central cavities c open to the bottom cf the block and preferably of conical form. The upper part of the cavity communicates by way of a pipe d with a valve or stop cock e to which a pipe may be connected for the purpose of supplying air to the cavity when the block is to be raised, or for extracting mud and water when the block is to be bedded afresh.
Patent GB-497584-A (GB)
Title: Improvements relating to gyroscopic instruments
IPC: G01C19/38
Filed: 1937-06-17
Abstract: 497,584. Resilient mountings. SPERRY GYROSCOPE CO., Ltd., HARDING, W. G., and NISBET, R. H. June 17, 1937, No. 16905. [Class 108 (iii)] [Also in Groups XX, XXXIV, and XXXVI] The rotor of a directional gyroscope is mounted by gimbal rings with 3‹ of freedom in a main frame, which is suspended with freedom to tilt relatively to the supporting vehicle. Resilient means permit the main frame to move bodily relatively to the vehicle and means for damping both translational and angular movements of the main frame are provided. As shown in the Figure, the main frame 3 pivots on a horizontal axis D in a gimbal ring 4, pivoting in turn about a perpendicular horizontal axis E-E<1> in a ring 5. Tilting of the frame 3 relatively to the ring 4 is damped by a dashpot comprising a cylinder 10, pivoted at 11 to a bracket 12 on the ring 4, and a loosely fitting piston 15 with its piston-rod 14 pivoted at 18 to link 19. The latter is pivoted at 20 to the ring 4 and at 21 to a link 22, pivoted at 23 to the frame 3. A similar dashpot is provided between the rings 4 and 5. The ring 5 is secured to the binnacle at the four corners by resilient mountings. The weight of the instrument is taken by pairs of rubber diaphragms 31<1>, 341 having their centres connected by rods 33<1> and secured respectively to flanges 24 on the ring 5 and fixed brackets 25. Stops 38 are provided to prevent damage to the diaphragms. Four flanges 30 on the ring 5 are similarly connected to vertical extensions 26 of the brackets 25 by diaphragms 31, 34 and rods 33 in order to resiliently centralize the instrument. Specification 497,707, [Group XX], is referred to.
Patent GB-951632-A (GB)
Title: Method of and machine for making closure caps
Inventor: FORD GEOFFREY EWART
IPC: B21D51/46
Filed: 1959-05-19
Abstract: 951,632. Nozzles. FORDS (FINSBURY) Ltd. May 19, 1960 [May 19, 1959 ; Oct. 7, 1959 ; Jan. 11, I960], Nos. 16965/59, 33999/59 and 942/60. Heading B2F. [Also in Division B8] A compound-applying gun for forming an annular gasket in a bottle cap 25 comprises two or more nozzle jets 11 which squirt compound on to spaced points round the cap interior under the control of a valve 12, so that as the cap is turned through one revolution the jets 11 are opened simultaneously, and subsequently closed, thereby ejecting compound forming an unbroken ring within the cap. The body 1 of the gun carries a stem 4 within which a spindle 15 rotates in bushes 20, the lower end of the spindle carrying a plate 16 with drive spigot 17 projecting into the valve 12. An inlet 9 and outlet 10 enable compound to be supplied under pressure to the nozzle interior. The valve 12 has two blade arms 13, Fig. 3, which open and close the jets 11. A collar 21 on the upper end of the spindle 15 has an arm 22 which is reciprocable, e.g. by an air bellows device 23, the underside of the collar 21 serving as an abutment for a spring 24 operating on the upper end of the stem 4 in order to keep the valve 12 on its seating. In a modification a further arm is provided in front of the blade arms 13 of the valve 12 in order to clear compound from the forward blade arm, Fig 4 (not shown). The valve 12 may be reciprocated by means of air jets arranged to act alternately on a member associated with the valve, Fig. 5 (not shown). Again, Figs. 6 and 7 (not shown), three nozzle jets are opened and closed by three valve blades, the device being operated in an upright position. The valves may be rotated continuously rather than reciprocated and may be operated by an electro-magnet or a rotary solenoid. According to the first Provisional Specification more than one jet may be controlled by the action of a single needle valve. Specifications 807,074, 884,125 and 884,126 are referred to.
Patent GB-730933-A (GB)
Title: Improvements in or relating to contact spring groups for electromagnetic relays and the like
IPC: H01H50/58
Filed: 1953-06-19
Abstract: 730,933. Electromagnetic relays. TELEFONAKTIEBOLAGET L. M. ERICSSON. June 19, 1953 [June 20, 1952], No. 17018/53. Class 38 (5). A contact spring pile-up for a relay or other switch has a fixed, toothed supporting member 14 for the free ends of the springs, the teeth 21 ... 24 of the member being arranged in two rows 21, 23 and 22, 24 on opposite sides of the bar, so that adjacent springs, e.g. 1, 2 are supported by teeth 21, 22 in different rows. An operating member 15 engages the ends of movable springs 2, 4.
Patent GB-497291-A (GB)
Title: Improvements in and relating to the feeding of cards from a stack
IPC: B65H3/24
Filed: 1937-06-18
Abstract: 497,291. Feeding articles from stacks. HORGAN, G. D., and INDUSTRIAL MACHINERY CO., Ltd. June 18, 1937, No. 17041. [Class 117] A reciprocating member for feeding the lowermost card or the like from a stack comprises a knife or tooth the forward part of which is pointed and enters the stack between the lowest card and the adjacent card. In the form shown, the cards 5 rest on the member 7 and the support 9 carried by the reciprocating element 10 provided with a tooth 12 beneath which the lowest card passes for engagement with the abutment surface 11 when the member 10 is moved towards the stack. The gap between the gap between the tooth edge and the curved surface 9 is adjustable according to the card thickness and in the modification shown in Fig. 4, the part carrying the tooth 12 is angularly movable to permit the gap width to be adjusted. Feed rolls, not shown, may be provided forwardly of the adjustable gate 8. Specification 469,622 is referred to.
Patent GB-273707-A (GB)
Title: Arrangement for driving asynchronous motors which have to be run at times with a very low speed
IPC: H02K17/38
Filed: 1927-06-27
Abstract: 273,707. Siemens - Schuckertwerke Ges. July 3, 1926, [Convention date]. Systems for alternating-current motors only.- An asynchronous motor 2 driving a paper calender 1 is normally supplied through switch 3 from the three-phase supply. During filling of the calender the motor is run very slowly by disconnecting and short-circuiting the stator by switch 3 and supplying the motor with low frequency current supplied by a self-exciting three-phase commutator generator A driven by a motor 5 through a clutch 8. The generator 4 may be series wound as shown, or it may be provided with shunt excitation, or it may be self-exciting, being provided with a squirrel cage winding.
Patent GB-129671-A (GB)
Title: Improvements in or relating to Elevating or Training Gear for Guns and the like.
Inventor: RAPSON FREDERICK LIONEL
IPC: F41A27/08
Filed: 1917-11-20
Abstract: 129,671. Rapson, F. L. Nov. 20, 1917. Field carriages; naval and garrison carriages and mountings.-Consists in elevating and training gear comprising a rotary shaft, a sliding block engaging slotted or forked members on the gun, and balls fitting in helical grooves in the shaft and block and acting as the transmission elements.. In the elevating- gear shown in Figs. 1, 2, and 4, the gun is turned about trunnions b by a nut h acting on slotted arms d depending from the gun. The nut is traversed by a screw g. Both the nut h and the screw g are formed with semicircular helical grooves m into which the balls n fit. The balls are retained in the nut by stops o. In a modification, Fig. 5, the nut is provided with an external conduit r to allow the balls to circulate. In another modification, Fig. 6, the screw and nut are formed with deep square threads having balls w between the working faces.
Patent GB-735149-A (GB)
Title: Synthetic plastic material protective respiratory mask
IPC: A62B23/06
Filed: 1953-06-20
Abstract: A mask, for use as a filter or for the administration of medicaments, comprises a nosepiece, formed in the shape of a nose, having apertures, in the bottom of it, with inturned edges so as to hold a medicated or other pad adjacent to the nostrils.  The appliance is held in position by spectacle-type ear pieces and the whole is preferably made of synthetic resin.
Patent GB-136494-A (GB)
Title: A Signal System for Telephones.
IPC: H04M1/738
Filed: 1919-07-09
Abstract: 136,494. Tsukamoto, K., and Kabushiki Kaisha Tsukamoto Denki Kenkyusho. July 9, 1919. Telephone calling- apparatus.-The circuits of the primary and secondary windings of a calling- transformer are closed momentarily during the passage of the hook lever from one position to the other when the receiver is removed and replaced upon its hook. The spring contact 16 is provided with a projection 18 which is engaged by the hook lever 2 to complete the circuit of the primary winding P of a hightension calling-transformer at the contacts 19, 20, and the circuit of the secondary winding S at the contacts 16, 19.
Patent GB-1465014-A (GB)
Title: Storage stability of diphenylmethane diisocyanates
IPC: C07C265/12
Filed: 1976-02-17
Abstract: 1465014 Diphenylmethane diisocyanates IMPERIAL CHEMICAL INDUSTRIES Ltd 17 Feb 1976 [25 April 1975] 17240/75 Heading C2C  The invention comprises a composition comprising refined diphenylmethane diisocyanates and a stabilizing amount of glycidol. The glycidol is preferably used in an amount of from 0À001 to 0À25% by weight of the diisocyanate. The diisocyanate may in addition contain an antioxidant, for example 2,6-di-t-butyl-p-cresol, 2,2<SP>1</SP> - dihydroxy - 3,3<SP>1</SP> - di - t - butyl - 5,5<SP>1</SP>- diphenylmethane, 6 - α - methylcyclohexyl- 2,4-xylenol, distearyl- and dilauryl-thiopropionates and triphenylphosphite.
Patent GB-890895-A (GB)
Title: Improved means for securing regular flow from pumps
Inventor: TULLETT JOHN EDGAR
IPC: F04B11/00
Filed: 1959-05-21
Abstract: 890,895. Securing regular flow from pumps. S. U. CARBURETTER CO. Ltd. April 29, 1960 [May 21, 1959], No. 17267/59. Class 102(1). A pulsation-smoothing device for use with reciprocating pumps of the diaphragm or piston type, particularly petrol pumps feeding the carburetter of an I.C. engine, comprises a hermetically-sealed, air-filled sac of material impervious to the material being pumped. The sac comprises a short thin-walled nylon tube A flattened and folded at its ends B, and then clenched by V-section metal closures C, one of which is shown. Instead of nylon material known by the Registered Trade Mark " Terylene " may be used for the tube A.
Patent GB-819897-A (GB)
Title: Process for the production of unsaturated compounds of the vitamin a series
Filed: 1958-05-30
Abstract: The invention comprises 1-(21,61,61-trimethylcyclohexene - 11 - yl) - 3 - methyl - 1,3,5, heptatriene-7-acid nitrile, and 1-(21,61,61-trimethylcyclohexene - 11 - yl) - 1 - propene - 3 - acid nitrile, and also a process for preparing unsaturated nitriles of the Vitamin A series by reacting a halogen nitrile of the general formula <FORM:0819897/IV (b)/1> in which X represents chlorine, bromine or iodine, R represents hydrogen or a methyl group, m and n are 0 or 1, with a carbonyl compound of the Vitamin A series, under the conditions of the Reformatsky synthesis, and splitting off water from the hydroxynitrile.  Starting materials specified are b -ionone, b -cyclocitral, b -ionylidenacetaldehyde (b -C15-aldehyde), b  - ionylideneacetone ("B-C16-ketone"), and 1-(21,61,61-trimethyl cyclohexen-11 - yl) - 3 - methyl - 1,3,5 - octatrien - 7 - one ("b -C18-ketone").  Halogen nitriles specified are chloroacetonitrile. bromacetonitrile, iodoacetonitrile, g -bromocrotonic acid nitrile, b -methyl-g -bromocrotonic acid nitrile, and 6-bromo - 3 - methyl - 2,4 - hexadiene-1-acid nitrile.  The reaction may be carried out by dissolving the carbonyl compound in e.g. tetrahydrofuran, dioxane, benzene, toluene or mixtures of these with diethyl ether.  Powdered zinc, flowers of zinc or zinc turnings together with the halogen nitrile may then be added or alternatively part of the mixture of the reaction components in the solvent may be added to the zinc, and the remainder added in portions as the reaction proceeds.  Hydroxy nitriles are obtained on working up the reaction mixture with e.g. cold aqueous ammonium chloride solution, hydrochloric, sulphuric, phosphoric or acetic acid.  Water may be split off by treating the hydroxynitrile in an inert organic solvent, e.g. benzene, toluene, xylene or petroleum ether, with e.g. iodine, glacial acetic acid and sodium acetate, phosphorus oxychloride or phosphorus pentoxide, with or without basic additives such as pyridine or quinoline.  Examples are given of the preparation of b -ionylidene-acetonitrile, g  - (b - ionylidene) - crotonic nitrile, 1-(21,61,61-trimethyl - cyclohexene - 11 - yl) - 3,7, dimethyl-1,3,5,7 - nonatetraene - 9 - acid - nitrile, which on saponification with alcoholic potassium hydroxide gives all trans Vitamin A acid, 1 - (21,61,61 - trimethyl - cyclohexene - 11 - yl)-1-propene-3-acid nitrile, and the following intermediates b  - ionolacetonitrile, 1 - (21,21,61 - trimethyl - cyclohexene - 11 - yl) - 3 - methyl - 3 - hydroxy 1,5 - heptadiene - 7 - acid nitrile, 1-(21,61,61 - trimethyl - cyclohexene - 11 - yl) - 3,7-dimethyl - 7 - hydroxy - 1,3,5 - nonatriene - 9 - acid nitrile, 1 - (21,61,61 - trimethyl - cyclo - hexene - 11 - yl) - 1 - hydroxy - 3 - propionitrile, and the corresponding 1-acetoxy compound, 1-(21,61,61 - trimethyl - cyclohexene - 11 - yl) - 1 - hydroxy - 3 - methyl - 3 - pentene - 5 - acid nitrile and the corresponding 1-acetoxy compound.  Specification 684,757 is referred to.
Patent GB-658165-A (GB)
Title: Improvements in or relating to electro-magnetically operated switches
IPC: H01H50/28
Filed: 1949-07-01
Abstract: 658,165 Electromagnetic switches. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. July 1, 1949, No. 17437. Convention date, Aug. 6, 1948. [Class  38(v)]  The movable contacts 47, 48 of an electromagnetic switch are mounted on a pivoted non-magnetic member 17 and the armature 31 is adjustably mounted on the side member 17 remote from the two parallel cores 3, 4. Adjustment is effected by the screw 35, rotation of which causes the armature 31 to move towards or away from the member 17, a spring 37 keeping the head 35 in frictional engagement with the leg 32. The member 17 has integral portions such as 18, 20 at each end and these are connected by two blade springs such as 22 and 24, crossing each other at right angles, to fixed members such as 11 and 14. The member 17 thus pivots about an axis determined by the intersecting points of the two pairs of springs and is adjustably biassed by a  spring 29 connected to an adjustable nut 28 on a screw 26 fixed to the member 17. The contacts 47, 48 are adjustable by a screw 50 the washer 51 of which is then gripped by the head of a screw 49.
Patent GB-1354657-A (GB)
Title: Piezoelectric ceramic compositions
IPC: C04B35/50
Filed: 1972-04-14
Abstract: 1354657 Piezoelectrics MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 14 April 1972 [20 April 1971] 17451/72 Heading C1J A piezoelectric composition consists of and 0À05-5 weight per cent MnO 2  where A+B+C+D=1; 0<A#0À50; 0<B#0À25; 0À25#C#0À625 and 0À25#D#0À625.
Patent GB-782139-A (GB)
Title: Improvements in or relating to sintered barium cathodes
IPC: H01J1/14
Filed: 1955-06-16
Abstract: 782,139. Cathode materials. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. June 16, 1955 [June 17, 1954], No. 17469/55. Class 39(1). A sintered barium cathode comprises an intimately powdered mixture of (a) barium oxide compounded with a stabilizing oxide of carbon or other metal having a valency of at least three, (b) a carbide, acting as reducer, (c) a refractory metal or carbide acting as a carrier ; (b) plus (c) constitute more than half the total molecular weight. The stabilizing oxide may be Al, W, Th, Ta, Nb, Mo, Ti, or Zr. The reducing carbide may be Ti, Zr, Th, Ta, Nb, W, Mo, Al, or Si. The refractory carrier may be W, Mo, Re, or Nb. The metal or metallic radicle of all these three components, or of any two of them, may be the same. Several specific examples are given. The mixing and sintering process is described, giving baking times and temperatures, and suitable pressures and grain sizes.
Patent GB-356768-A (GB)
IPC: G03B21/32
Filed: 1930-06-05
Abstract: 356,768. Kinematograph apparatus. KODEL ELECTRIC & MFG. CO., 507, East Pearl Street, Cincinnati, Ohio, U.S.A. June 5, 1930, No. 17474. Convention date, July 16, 1929. [Class 97 (i).] A kinematograph camera of the type in which a standard width film is shifted alternately one half width and then one half height of an image section, and in which the portion of the film receiving the image is carried by a movable film plate, is characterized by a transverse bar to which the film plate is secured and an uninterrupted cam disc acting on the bar for imparting thereby to the film plate and the portion of film carried thereon a reciprocating movement transversely of the length of the film. Claws alternately entering a longitudinal slot on the film plate are adapted to advance the film longitudinally subsequent to the lateral displacement and exposure of the film. As shown in Fig. 4, the film plate 22, with an aperture 39 of normal width but of half the normal depth, is fixed to a rod 23 slidable in the brackets 24, 25 of the front plate 4, and is provided with rearward projections 26 which are provided with holes engaged by the pin 27 projecting from the plate 5. A pressure plate 29, Fig. 15, carries a spring 33 having a groove 35 which engages the pin 36. The aperture 40 in the front plate 4 is of half the width and the depth of the normal film section. The claws 46 are mounted in the bushes 48, Fig. 6, which are carried by the clawplate 49, which is vertically reciprocated by the cam 55 mounted on the governor shaft 56. The claws, which are held out of engagement with the film by the springs 50, are caused alternately to engage the film through the slot 45 by the levers 57, 58, which are operated by the face-cam 64 on the gear 65 on the shaft 66, the inner end of which carries a cam 70 which operates between the rollers 71, 72 on the rod 23, thus oscillating the plate 22 one-half of a film width. The pin 74, which is linked at 75 to the rod 23 and which is pressed downwards by the spring 77 snaps the rod 23 into its extreme positions. Lateral movements are adjusted by the bushings 79, 80. The film spools are mounted on the spindle 9, Fig. 11, the undriven spool 88 for unexposed film first, and the take-up spool 89 next peripherally driven by the wheel 90 on the spindle 93 carried by the pivoted bracket 92 slotted to engage a stop-pin 100. The pulley 95 integral with the wheel 90 is driven by the spring belt 96 from the pulley 94 on the main shaft 13, which is driven by a spring motor. A sprocket 15 on the shaft 13 is provided with spring-pressed shoes 16, 17 each carrying a pair of pressure rollers 20a, 21.
Patent GB-942843-A (GB)
Title: Improvements in or relating to metal working dies
Inventor: TRIBE THOMAS FRANCIS
IPC: B21D41/04
Filed: 1961-05-12
Abstract: 942,843. Spinning. BRITISH FEDERAL WELDER & MACHINE CO. Ltd., and T. F. TRIBE. May 8, 1962 [May 12, 1961], No. 17484/61. Heading G3J. A rotary reducing die comprises a die holder, a die removably secured in the holder and a power actuated ejector device carried by the holder to eject said die. A circular frustoconical die 113 has a work forming front recess 116 and is retained by tape engagement in a holder 115. Preferably the die comprises sectors insulated from each other and connected to an electrical supply so that when a rotating tube 117, which is to be end formed, is brought into contact with the sectors current is caused to flow which produces a heating effect on the tube end. The holder carries a reciprocating hydraulic motor comprising a cylinder 118 and a hollow ram 119 having a screwed extension 124 to which a flange 126 is fitted. The cylinder is connected to a hand pump 120 and the ram advanced to eject the die 113. A number of springs 127 are provided between the flange 126 and the cylinder end wall to retain the ram in the retracted position.
Patent GB-608600-A (GB)
Title: Improvements in or relating to artificial legs
IPC: A61F2/64
Filed: 1945-07-09
Abstract: 608,600. Knee joints. TOUSON, I. July 9, 1945, No. 17510. [Class 81(ii)] An artificial leg comprises a thigh part 1 and a calf part 2, including a foot, in which the lower end of part 1 has, viewed from the side, a convex curved shape consisting of the main radius 3b merging into a larger radius 3a which rises to the front of the leg, so that in the extended position of the leg the end 3a, 3b rests in a corresponding curve 4 at the top of part 2; a lateral concave slot 5, rising forwardly in one part and approximately parallel to curve 3b, 3a (or 4), and being engaged by a bolt 6 fixed to the other part, whereby in the extended leg position curves 3b, 3a and 4 bear against each other over their entire surfaces and in the bent leg position the parts 1 and 2 bear against each other at two points viz the point of contact of parts 1 and 2 and the point of contact of bolt 6 and slot 5, so that the parts 1 and 2 are locked in such position when the weight of the body is applied to the leg. Between the parts 1 and 2 there may be springs, counterweights, linings, packings or other means known in the art.