baber/WOPTO huggingface dataset:
Patent GB-920854-A (GB)
Title: Improvements in or relating to the oxidation of hydrocarbons
IPC: C07C/
Filed: 1961-02-03
Abstract: Maleic anhydride is made by contacting, at an elevated temperature, a gaseous mixture comprising one or more of the C4 hydrocarbons butene-1, butene-2 and butadiene and oxygen with an oxidation catalyst having the formula <FORM:0920854/IV(a)/1> wherein x is from 3 to 24, y is from 1 to 12, and z is from 0.1 to 1.0, the quantity of oxygen in the mixture being less than that necessary for complete oxidation of the said hydrocarbon in the mixture, i.e. the molar ratio of oxygen to C4 hydrocarbon being less than 6/1 , preferably in the range 3/1 to 1/10 .  It is advantageous to work in the presence of a gaseous diluent, such as nitrogen, carbon dioxide or steam, the preferred source of oxygen being air.  The reaction temperature may be between 250 DEG  and 600 DEG C. and the contact time is generally in the range of 0.2 seconds.  The catalyst may be employed in a fixed bed or a fluidized bed.  The preparation of the catalyst is described in Specification 920,853.
Patent GB-424856-A (GB)
Title: Improvements in or relating to mechanical stokers for furnaces
IPC: F23K3/00
Filed: 1934-02-09
Abstract: 424,856. Mechanical stokers. WHITEHEAD, A. W., 64, Ada Terrace, Rodley, near Leeds. Feb. 9, 1934, No. 4276. [Class 51 (i)] In a mechanical stoker of the kind in which the fuel is fed to the front of a striking plate 10 from a hopper 3 by means of a reciprocating pusher 1 working within the hopper outlet, the pusher is actuated through a lever 4 from a rotary cam 7 comprising a disc or wheel having a renewable central or inner cam member 7<x> and renewable peripheral or outer cam pieces 7<y> affording between them a sinuous track co-operating with one end of the lever. The lever 4 is pivoted about a vertical pin carried by the base 2 of the hopper and at one end is pivotally connected to the pusher 1 whilst the other end carries a roller or runner 6 engaging within the track between the inner and outer cam members so that the inner member effects the forward movement and the outer member the rearward movement of the pusher. In the form shown the cam is arranged to give four reciprocations of the pusher for each revolution. On the reverse face of the cam disc are studs or pins 9 adapted to engage an arm 13 extending from the striking plate 10 so as to actuate the plate immediately after each forward movement of the pusher. The plate 10 is pivoted on a shaft above an arcuate plate 14 and after the forward movement is returned either by gravity or by spring means.
Patent GB-840578-A (GB)
Title: Improvements in lock nuts
IPC: F16B39/284
Filed: 1958-02-10
Abstract: 840,578. Making nuts; forging. ROHE, F. W. Nov. 20, 1958 [Feb. 10, 1958], No. 4306/58. Classes 83 (2) and 83 (4). [Also in Group XXV] A self-locking nut comprising a body 11, Fig. 3, with a necked extension 13, is produced from bar-stock on an automatic lathe, and then the neck is squeezed between dies 14, Fig. 1, to reduce the pitch diameter locally. The dies each comprise a semi-circular recess 15 of the same radius as the neck, with a flat 16 across the bottom thereof. The dies are forced towards each other, e.g. by hydraulic pressure, until they meet. Specifications 812,540 and 813,350 are referred to.
Patent GB-1408373-A (GB)
Title: Nickel-chromium alloy
IPC: C22C19/05
Filed: 1974-01-30
Abstract: 1408373 Nickel-chromium alloy OWENSCORNING FIBERGLAS CORP 30 Jan 1974 [31 Jan 1973] 04367/74 Heading C7A Alloy of composition:- The alloy may be prepared by melting the constituents in the form of master alloys or by adding the required constituents to a nickel, chromium melt either in vacuum or in an argon atmosphere the melt being contained in a neutral crucible at a temperature of 2,700‹F to 3,000‹F. The alloy may be vacuum investment cast and machined to form spinners, centrifuge buckets and bushing support frames for use in the formation of glass fibres by rotating or centrifugal processes.
Patent GB-285096-A (GB)
Title: Manufacture of new dyestuffs
IPC: F23Q2/06
Filed: 1928-02-11
Abstract: 285,096. Soc. of Chemical Industry in Basle. Feb. 12, 1927, [Convention date]. 1-Arylamino-4-aminoanthraquinones; dye preparations. - 1-Arylamino-4-aminoanthraquinones which contain in the aryl nucleus at least one amino group or a group derived from the amino group are obtained by condensing a 1-oxy- or 1- alhyloxy-4-aminoanthraquinone or a 1 : 4-diaminoanthraquinone with an aromatic diamine such as phenylenediamine, naphthylenediamine, or benzidine, or a derivative, homologue, or substitution product thereof. The products are dyestuffs for cellulose esters and ethers, such as cellulose acetate, or for varnishes; by treatment with a sulphonating agent or formaldehyde bisulphite, sulphonic acids which dye animal fibres from an acid bath are obtained. According to examples, (1) 1-(4<1>-aminophenylamino)-4-aminoanthraquinone is obtained by condensing 1- methoxy-4-aminoanthraquinone with p-phenylenediamine in presence of dimethylaniline, nitrobenzene, o-dichlorbenzene, or naphthalene: the p-phenylenediamine may be replaced by dimethylp-phenylenediamine, m-toluylenediamine, acetylp-phenvlenediamine, benzidine, or 5-amino-2- methylbenzimidazole; (2) the same product is obtained from 1-oxy-4-aminoanthraquinone and p-phenylenediamine in presence of boric acid and dimethylaniline, the product being crystallized from sulphuric acid or aniline; (3) 1-(4<1>-aminophenylamino)-4-aminoanthraquinone is treated with weak oleum, or with chlorsulphonic acid in presence of nitrobenzene, or with formaldehydebisulphite solution: the products dye wool from sulphuric acid baths in greenish-blue tints: (4) 1-(4<1>-aminophenylamino)- 4 - aminoanthraquinone is mixed with sulphite cellulose lye or a sulphonation product of the distillation residue obtained in the manufacture of benzaldehyde or turpentine, so as to produce a paste of 20 per cent strength; the paste is diluted with soap solution and water and used for dyeing a fast green blue shade on acetate silk. Specifications 263,579 and 271,898 are referred to. The Specification as open to inspection under Sect. 91 (3) (a) covers the use of aldehyde bisulphites in general for the introduction of sulphonic groups. This subject-matter does not appear in the Specification as accepted.
Patent GB-256656-A (GB)
Title: Receiving device for the deferred repetition of angular movements transmitted to a distance
IPC: G05D3/12
Filed: 1925-02-18
Abstract: 256,656. Girardelli, R. Feb. 18, 1925. Systems controlling travel for a fixed number of revolutions.-In the distant control of electric motors to travel specified angular distances, as in training and elevating guns, where it is required to defer the follow-up movement for an arbitrary time, an auxiliary motor 6, provided in addition to the main working motor 1, receives the specified angular travel and drives a group of toothed wheels 30, 31, 32 a coresponding number of revolutions from a standard position of coincidence. The wheels are returned by an opposite drive through a differential gear 25 from the main motor 1 when this is set in action at any subsequent time. The numbers of teeth in the different wheels are prime to each other in order that several thousand revolutions of the auxiliary motor may take place before the wheels return to the standard position. The return of the toothed wheels produces an axial displacement of a sleeve 30 which by an arm 39 actuates a switch to break the circuit of the motor 1. A signal may be given at a specified time, e.g. near the position of coincidence, by a contact segment 46 controlling a lamp or bell circuit.
Patent GB-848780-A (GB)
Title: Improvements in rotary printing machines
IPC: B41F13/40
Filed: 1959-02-09
Abstract: 848,780. Rotary printing machines. SOC. ALSACIENNE DE CONSTRUCTIONS MECANIQUES. Feb. 9, 1959 [Feb. 14, 1958], No. 4466/59. Class 100(2) In a rotary printing machine of the type in which several forme rollers 3 are disposed around a single impression cylinder 2, each end of each roller 3 is supported in a bearing 4 carried by a hollow cylindrical structure 6 slidably mounted in a radial bore 7 in the machine frame 1. Within the structure 6 is a piston 8 having a rod 9 which is anchored on a fixed pin &c. 11, so that when fluid under pressure is admitted to the structure 6 between the piston 8 and the inner end, the structure 6 is forced inwardly of the bore,7, and the forme roller 3 is urged against the impression cylinder 2. Fluid under pressure is supplied from a pipe 12 to the structure 6, and each pair of structures may be supplied from a different source so that the pressure of each roller 3 may be adjusted. With this arrangement, larger diameter forme rollers may readily be substituted. The introduction of a new roller is facilitated by providing two-part hinged bearings for the rollers. The pin &c. 11 may be designed to yield or break when there is excessive pressure between the roller 3 and cylinder 2. As shown, there are eight forme rollers 3, and the machine can print on webs of fabrics in one or more colours.
Patent GB-369336-A (GB)
Title: Automatic sliver lapping machine for continuous operation
IPC: D01G15/62
Filed: 1931-02-12
Abstract: 369,336. Lap - forming apparatus. SOC. ANON, COTONIFICI RIUNITI S. R. L., 1, Via Carlini, Milan, Italy. Feb. 12, 1931, No. 4477. Convention date, Feb. 12, 1930. [Class 120 (i).] In a continuously-operated sliver-lapping machine having two driving drums A, B and a pressure drum E, Figs. 5 and 6, and adapted automatically to expel the completed roll and to substitute an empty lap rod, the pressure drum E is mounted on a pivoted lever so that as the lap roll grows the point of contact of the drum E is displaced to the left and produces an increasing horizontal component tending to expel the lap roll from the machine. The drum E is chosen of such a weight that it acts to break the sliver and expel the lap on the attainment of a predetermined maximum diameter. The machine is also provided with a length counter adapted to effect expulsion of the lap before reaching the maximum diameter if a given length has been wound. The drum A is driven directly from the shaft 3 through a pinion 38, Fig. 7. The drum B is driven through gearing from fast and loose pulleys 20, 21 and is connected by a chain to the drum E. The rollers C, D are similarly driven from the pulleys 20, 21 and the rollers H, K directly from the shaft 4. On completion of the required length the measuring device operates levers 14, 16, 17 and the beltfork 18 to shift the belt 19 to the loose pulley, stopping the drums B, E and the rollers C, D. The rollers H, K and the drum A continue to rotate the slivers being broken at S, Fig. 6, and the completed roll ejected from the machine. In so doing it engages the roller L and moves the lever 29, 30 about the pin F the bar 36 pushing the empty lap rod G into the winding position and the slide-block 31 expelling the next rod from the container 32. The lever 29, 30 returns under spring action. The drum E, connected to a lever 28 by an arm 42 and a rope 23 which passes round a pulley 24 on a rack 25, falls by gravity thus lowering the lever 28 which by a rope 34 rotates the levers 16, 17, 14 and moves the belt 19 on to the fast pulley 20.
Patent GB-780850-A (GB)
Title: An improved lead-in for electric currents in gas discharge vessels
IPC: H01J17/04
Filed: 1954-02-16
Abstract: 780,850. Discharge devices. BERGHAUS, B. Feb. 16, 1954 [Feb. 17, 1953], No. 4498/54. Class 39(1). A lead-in for electric current in gas discharge vessels, particularly for treatment of workpieces or for carrying out chemical reaction, has two cylindrical electrode parts enclosing a gap which, seen from the interior of the vessel, lies in front of an insulator which lies between the electrodes, the electrode part on one side of the gap being arranged so that it is radially movable relatively to the other electrode part and can be fixed in position. A double-wall vessel 1, 2, through which passes cooling means is connected as anode and the cathode 4, provided with a screw-threaded attachment 5 to secure pieces to be treated, is led through the outer insulator 6, cooling of the cathode being effected through connections 7, 8. A screw cap 9 presses the insulator 6 against a packing 10 of rubber or synthetic resins provided in the screw-threaded connector 11. The position of the anode cap 13 is fixed by the anode ring 14 which forms an annular cylindrical gap with respect to the cylindrical cathode ring 26. The wall 1 facing the discharge space 12 is provided with a recess 21 receiving the displaceable plate 22 of smaller diameter than that of the recess 21. The plate 22 is provided with holes 23 the diameter of which is greater than the pin 24 of screws 25 engaging in corresponding screw-threaded bores in the wall 1 but less than the diameter of the heads of the screws. For cleaning purposes the anode cap 13 and the anode ring 14 are detachable in an axial direction. Further gaps 20, 17, 17<SP>1</SP> and 1711 and an insulator 15 are provided. The two gaps 17 and the two gaps 171 and 17<SP>11</SP> may differ in width.
Patent GB-487826-A (GB)
Title: Lugged stilts for roof supports in mines
IPC: E21D11/22
Filed: 1938-02-14
Abstract: 487,826. Mine - roof supports. RICHARDS, F. Feb. 14, 1938, No. 4500. [Class 20 (ii)] A stilt bar for mine arches and props is formed of a channel section bar 1 with marginal bearing edges 3 and with a rebate or recess in its back face into which is secured a clamping member 6. The parts may be riveted, bolted or welded together. Two opposed stilt bars 1 are secured together on opposite sides of an I or H section vertical support-bar 16 by means of clamping bolts 10, and the upper ends of the stilt bars pass through apertures 15 in the lower flange 14 of a horizontal support-bar and bear beneath the upper flange thereof. The stilt bars and the bearer bar may be secured together by bolts passing through holes 19.
Patent GB-886676-A (GB)
Title: Battery-operated generator for watches, clocks and other constant-speed apparatus
IPC: G04C3/027
Filed: 1958-02-12
Abstract: 886,676. Dynamo electric machines. OBERGFELL, R., and OBERGFELL, H., [trading as KIENINGER & OBERGFELL]. Feb. 12, 1958 [Feb. 12, 1957; Feb. 15, 1957; April 11, 1957; July 1, 1957; Dec. 17, 1957], No. 4635/58. Class 35. [Also in Group XVIII] A timepiece has an electromagnetically maintained pendulum 100, Fig. 1, having a stirrup 103, the rod 104 of which carries a permanent magnet 105 which moves into and out of two inductively-coupled coils 107, 108, connected as shown to a transistor 109. The relative movement between the magnet and the coils causes the circuit to generate bursts of pulses and so maintain the pendulum in oscillation. Instead of the coils 107, 108 being wound one upon the other auxiliary coupling coils 115, 116, Fig. 4, may be used. The mechanical oscillator may comprise a bar magnet 117, Fig. 5, suspended between two springs 120, 121, the latter of which carries a resilient pawl 123 which drives a ratchet wheel 124 connected to a cam 125 which actuates a switch 126 in the circuit of slave clocks 127, 128. The springs 120, 121 may be replaced by permanent magnets. In another example, Fig. 8, a bar magnet carried by a balance co-operates with coils 151, 152 and a damping circuit comprising a transistor 164 and coils 162, 163 is provided. Specifications 746,465 and 850,283 are referred to.
Patent GB-575364-A (GB)
Title: Improvements in or relating to gyratory crushers
IPC: B02C2/04
Filed: 1944-03-13
Abstract: 575,364. Gyratory crushers. SHEEPBRIDGE COAL & IRON CO., Ltd., and DOWSELL, N. A. March 13, 1944, No. 4638. [Class 59] In gyratory crushing machine in which the shaft 1 carrying the crushing head is surrounded by a sleeve 4 having part-spherical protuberances engaging a socket 5 in an eccentric sleeve 6 driven by a surrounding pulley 9, there is provided beneath the lower end of the shaft 1 a chamber 11 supplied with lubricant under pressure which is forced upwards between the shaft and the sleeve 4 to an annular chamber 21, thence downwardly around the eccentric element 6 and finally upwardly through the pulley bearings 8 and the bearing sleeve 10 to a chamber 24 connected to a return pipe 25. The oil is supplied by a pump through a pipe 13 delivering to a tube 15 non-rotatably mounted in an extension 16 of the pulley base 36, this tube being connected to the chamber 11 by a rotating tube 20 extending upwardly through a double driving- dog member 39. The latter is formed on its lower and upper faces with recesses 38, 40 in which engage dogs projecting upwardly from the pulley base 36 and downwardly from the eccentric element 6 respectively. The extension 16 is grooved externally at 17 to serve as a pulley which drives the oil-circulating pump through belts 18. Any oil escaping upwardly around the shaft 1 from the chamber 21 is delivered to the return pipe 25 by a branch 34. A modification is described in which a threerotor oil pump is secured directly to the underside of the pulley base 36.
Patent GB-702762-A (GB)
Title: A method of agglomerating finely divided sulphide ores
IPC: C22B1/24
Filed: 1951-02-26
Abstract: A method of agglomerating finely divided sulphide ores for smelting comprises mixing the ore with sodium sulphate in the form of Glauber's salt or salt cake, with an argillaceous material and forming the resulting mixture into agglomerates.  The argillaceous material may be bentonite or Fuller's earth.  The ore may be in the form of a concentrate of iron pyrites, chalcopyrites or chalcopyrite containing iron pyrites.  Thus the mixture may contain 100 parts by weight of sulphide ore, up to 6 parts of sodium sulphate and up to 10 parts of clay and water in sufficient amount to make the mass plastic.  The mass may be extruded as a continuous rope which is cut to pieces of suitable size and dried.  The pieces may then be coated with a layer of sulphur, e.g. by passing the agglomerates through a bath of molten sulphur, the thickness of the sulphur layer being controlled by regulating the temperature of the bath, the temperature of the agglomerates and/or the time of immersion in the bath.  Thus the sulphur bath may be maintained within the range 120-155 DEG C.; the agglomerates may be fed to the bath at a high temperature of 200-250 DEG C. or at a low temperature, e.g. 70 DEG C. or at an intermediate temperature, e.g. 120 DEG C.  Excess heat delivered to or required by the sulphur bath may be dissipated or provided by circulating the sulphur through a cooler or heater respectively. Specifications 21790/04, [Class 82], and 144,276, [Class 82 (1)], are referred to.
Patent GB-825552-A (GB)
Title: Improvements in or relating to a hand grip device for the operation of remote handling mechanisms
Inventor: ORR DONALD
IPC: G05G5/24
Filed: 1956-02-15
Abstract: 825,552. Remote control tongs. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Feb. 14, 1957 [Feb. 15, 1956], No. 4702/56. Class 61. A hand grip device for operating a remote control tongs comprises a rod 1 slidably mounted in a tube 2 and moved by a trigger 5 rotatably mounted on a supporting framework 9 on which the tube 2 is mounted, the trigger having teeth 6 adapted to engage with a rack 4 which is slidably mounted in the tube and bears against the end of the rod 1, the rod being urged against the rack by a compression spring 10. A pistol hand grip 11 rotatably mounted on the same spindle as the trigger 5 carries a stop pin 12 against which the trigger abuts when rotated through a part of its operating range to bring the rod 1 into retracted position in the tube 2. Adjustable locking means for preventing rotation of the grip 11 in order to locate the rod 1 in required position in the tube 2, comprise a latch 13 mounted on the grip 11 and adapted to be engaged selectively in one of a series of latch holes 14-17 in the edge of the supporting frame 9. Specification 825,553 is referred to.
Patent GB-1156114-A (GB)
Title: Herbicidal Aminobenzoic Acids, Esters and Salts, and Preparation and Use thereof
IPC: C07D295/215
Filed: 1967-01-31
Abstract: 1,156,114. Herbicides containing aminobenzoic acid derivatives. UNITED STATES BORAX & CHEMICAL CORP. 31 Jan., 1967 [2 Feb., 1966, 5 Dec., 1966], No. 4703/67. Heading A5E [Also in Division C2] Herbicidal compositions comprise as active ingredient an o - aminobenzoic acid N- substituted by a morpholino - or thiomorpholinp - carbonyl or thiocarbonyl group, and the esters and salts of such acids. Preferred compounds are the alkyl, alkenyl, alkynyl and aryl esters and ammonium, alkali metal and amine salts of the acids. The compositions may be used in the conventional form and may include known herbicides, e.g. chlorophenoxyacetic acids and haloalkanoic acids, as well as the usual adjuvants. Examples XI-XXIII describe the preparation and application of the herbicides.
Patent GB-737120-A (GB)
Title: Improvements in or relating to the manufacture of mouthpiece cigarettes
IPC: A24C5/52
Filed: 1953-02-19
Abstract: 737,120. Cigarette-making machines. MOLINS, D. W., JACKSON, N. W., RUAU, F. F., and MOLINS MACHINE CO., Ltd. Feb. 4, 1954 [Feb. 19, 1953], No. 4733/53. Class 130. In a mouthpiece cigarette-making machine, lengths of tobacco rod cut off from a tobacco stream fed through a tube 4 on to a table 5 are moved out of line with the stream on to a conveyer 16 moving faster than the stream by a means 8 which simultaneously moves each tobacco length sideways and in the direction of motion of the conveyer 16, whereby successive tobacco lengths are delivered on to the conveyer 16 whilst moving substantially at the speed of the conveyer, spaces being left therebetween into which stubs are inserted to form a composite rod. The tobacco stream emerging from the tube 4 is cut by a narrow knife 6 and the severed tobacco length is correctly positioned on the table 5 by a spring-loaded pivoted stop 7. Immediately after severing, the tobacco length is moved bodily sideways and forward through an arcuate path by a push bar 8 pivotally connected to two rotating levers 9, 10. When the bar 8 first engages the tobacco length the bar 8 has a component of motion in the direction of the tobacco stream approximately equal to the speed of the stream but by the time the tobacco length has been moved sideways to drop on to the conveyer 16, constituted by a cigarette paper web, it has been accelerated by the bar to a speed approximately equal to that of the conveyer 16. The table 5 is highly polished and the web 16 is arranged slightly lower than the table 5. A pivoted arm 22, Fig. 2, actuated by a cam 24 engages each tobacco length as soon as it is pushed off the plate 5 to ensure that it is deposited firmly on the web 16, a guide 26 being provided to ensure correct sideways positioning of the tobacco lengths on the web. The spaced tobacco lengths are carried by the web 16 towards a stub wheel which deposits stubs into the spaces as described in Specification 709,197, the paper being subsequently wrapped around the resulting composite filler.. The stop 7 is moved out of its normal position by the motion of the bar 8 but is returned thereto by a spring 20.