baber/WOPTO huggingface dataset:
Patent GB-438451-A (GB)
Title: Improvements in and relating to the roasting of ferruginous sulphide ores
IPC: C22B1/02
Filed: 1934-05-18
Abstract: Ferruginous sulphide ores are roasted by being passed in co-current flow with gases containing oxygen, not more than 70 per cent nitrogen, and at least 10 per cent sulphurdioxide, whereby p non-ferrous metals present are converted to sulphates.  The gases leaving the ore should contain free oxygen to ensure complete desulphurization of the iron, and the gases leaving the furnace may be recirculated after suitable concentration in respect of sulphur dioxide.  The ore may be given a preliminary roasting treatment in countercurrent flow with a mixture of air and concentrated sulphur dioxide, and the gases leaving the countercurrent treatment be cooled to condense sulphur and be added to the gases leaving the co-current treatment, the mixed gases, or a part thereof, being treated to remove all or part of the nitrogen, together with any carbon dioxide, and the concentrated gases, or a part thereof, being divided into two portions which are returned respectively to the countercurrent and co-current roasting steps.  By mixing carbonaceous fuel with the ore prior to the countercurrent roast, substantially the whole of the sulphur removed from the ore may be recovered as free sulphur.  Any excess of sulphur dioxide in the circulating gases may be removed from the process and utilized, for example, for the production of sulphuric acid.  The countercurrent roast may be effected at 900 DEG C., and the sulphating roast at 800 DEG  C. Specifications 353,861 and 394,650 are referred to.
Patent GB-1363062-A (GB)
Title: Apparatus for the sorting and separation of granular material
IPC: B03B4/00
Filed: 1971-07-27
Abstract: 1363062 Separating material by pneumatic and vibrating means BUEHLER AG Gebr 27 July 1971 [3 Aug 1970 5 July 1971] 15113/74 Divided out of 1359718 Heading B2H The subject-matter of this Specification is substantially the same as that described in the parent Specification 1,359,718 but the claims are concerned with an apparatus for sorting and separating granular material comprising: a feed inlet having an oscillatory feed channel for the material extending along an arrival region of an inclined air-pervious material support; means for causing upward air flow through the support; an outlet for the discharge of a major heavier fraction of the material disposed at the end of a conveyance path; an outlet for the discharge of a minor lighter fraction of the material disposed in a region distant from the conveyance path; the arrival region extending in a like direction as a line joining the heavier and lighter fraction outlets; vibration means for vibrating the material support relative to a base so as to impart throwing-action oscillatory movement to the material support at an acute angle to the conveyance path and with a component in the direction of conveyance; and means for varying the inclination of the material support relative to the base in the direction of the oscillatory movement and at right angles thereto.
Patent GB-676699-A (GB)
Title: New vat dyestuffs
IPC: C09B1/42
Filed: 1949-06-07
Abstract: The invention comprises vat dyestuffs of formula <FORM:0676699/IV (c)/1> where R is an aryl radical of the benzene series.  They are made by heating 2 : 5-di-(1 : 4-diamino - 2 - anthraquinonyl) - 1 : 3 : 4-oxdiazole with benzoyl chloride or anhydride which may be substituted, e.g. by halogen atoms and alkyl, alkyloxy, alkanesulphonyl and trifluoromethyl groups.  Organic solvents such as nitrobenzene may be used and pyridine may be present.  The dyes are blue and fast to bleaching, water spotting and high temperature vatting and dyeing.  In examples, products are made by reaction in nitrobenzene in the presence of pyridine of the above substituted 1 : 3 : 4-oxdiazole with (1) benzoyl and p-methyl benzoyl chlorides; (2) o-, m- or p-chloro- or p-bromo-benzoyl chloride, and (3) m- and p-methoxybenzoyl chloride.  Other specified acylating agents are p-methylsulphonylbenzoyl chloride and m-trifluoro methylbenzoyl chloride; 2 : 5-di-(1 : 4-diamino-2-anthraquinonyl) - 1 : 3 : 4 - oxdiazole may be made by reacting 4 - nitro - 1 - aminoanthraquinone-2-carboxylic acid chloride with hydrazine to obtain the monohydrazide, condensing with another mol. of the acid chloride to form N : N1 - di - (4 - nitro - 1 - amino - 2 - anthraquinone - 2 - carbonyl) - hydrazine, ring closing with thionyl chloride in nitrobenzene and reducing with sodium sulphide.
Patent GB-1167377-A (GB)
Title: Improvements in Shirred Tubular Food Casings
Inventor: STORER WILLIAM ELWOOD
IPC: A22C13/02
Filed: 1967-06-03
Abstract: 1,167,377. Shirred casings. VISKASE Ltd. 28 May, 1968 [3 June, 1967], No. 15172/67. Heading A2B. Shirred casings are supported on a hollow former, which may engage over the stuffing horn of a sausage machine, the former being a frictional fit within a shirred casing whereby the casing is restrained from decompressing or sliding off the former. One end of the former may be flared, and a piece of adhesive tape may be provided at the other end to secure the casing. The former may be of a plastics material, and may either be perforated and contain a removable core of moisture containing absorbent material, or it may itself be absorbent.
Patent GB-1510482-A (GB)
Title: Tubular fence
IPC: E04H17/16
Filed: 1975-04-14
Abstract: 1510482 Rail and bar fencing K T DENSEN 14 April 1975 [2 May 1974] 15178/75 Heading E1B A fence construction kit comprises a plurality of tubular post and rail elements each post having apertures for receiving ends of the rails and each aperture having an upstanding peripheral tab for engagement with one of a plurality of recesses 19 in the rail ends so as to allow axial adjustment of the rails. Locking means 20 in the form of a resilient wedge secures the rails in position. The rails and posts may be of plastics coated aluminium, plastics coated or galvanized steel or of thermoplastics material and they may be of circular or rectangular section. The posts may be provided with top caps and caps for closing unused side apertures.
Patent GB-490157-A (GB)
Title: Improvements in and relating to fishing reels
IPC: A01K89/016
Filed: 1937-06-01
Abstract: 490,157. Fishing-reels. MAYNES, H. F., and MAYNES, E. C. June 1, 1937, No. 15179. Convention date, Oct. 14, 1936. [Class 48] A fishing-reel spool 30 is rotated for winding- in by a flexible element such as a cord 73, pulled linearly and wound on an actuating member such as a drum 76 connected to the spool by a one-way clutch. The drum carries internally a spring 85 tending to resist the action of the cord, and winding up the cord when released. The spool also carries a crank handle 130 for manual operation. The spool 30 is mounted in a frame 18 having a spaced ring 27 secured by posts 26. The spool hub 32 is recessed and threaded to receive a collar 37 surrounding the sleeve 20, the collar having a flange 38 rotatably carried by a plate 39 secured to the frame. Flange 38 is toothed and engaged by a lever 45 to form a click brake, the lever having three recesses engaged by one end of a resilient arm 50, the other end carrying a pin 53 mounted in a slot in the frame and provided with an operating head 60. Flange 38 is also engageable by a lockbolt 65 with handle 70, so that the spool can be unscrewed from collar 37 and removed laterally from the frame. The frame carries a guide for the cord 73 which is wound on a drum 76 having a hub 78 mounted on a shaft 80 and connected to a collar 83. This collar is secured to one end of a spring 85, the other end being attached to a stationary drum 89 welded to the frame 18. Shaft 80 carries a pin 102 engaging a diagonal slot in a clutch sleeve 100 which carries a split spring ring 105 acting as a one-way clutch between sleeves 20, 100. Sleeve 100 also has a one-way clutch engagement through elements 110, 112 with a sleeve 115 which has wings 122 in frictional engagement with cap 118 which may have an adjustable member to vary the pressure. The elements 110, 112 allow the spring 85 to rewind the cord without reversing rotation of the spool.
Patent GB-612357-A (GB)
Title: Improvements in and relating to apparatus for balancing rotors
IPC: G01M1/22
Filed: 1946-05-20
Abstract: 612,357. Electric indicating systems. BRITISH THOMSON-HOUSTON CO., Ltd. May 20, 1946, No. 15213. Convention date, May 23, 1945. [Class 40 (i)] [Also in Group XX] An indication of the out-of-balance of a rotor, e.g. of a gyroscope, is given by the resultant of two voltages induced in series connected coils due to the vibration of the two ends of a freely-supported stator surrounding the rotor, the coils being connected to a reversing switch. As shown, the rotor is surrounded by a stator (not shown), supported on a spring or springs and having secured at each end thereof a downwardly-extending flexible rod carrying a coil 20, 21, each arranged for movement between a pair of permanent magnets. If the unbalance is on the central vertical axis of the rotor, a simple vertical vibration will'result and the voltages will be equal being 180 degrees out of phase and the resultant zero when switch 26 is thrown right. If there is a pair of equal and symmetrically spaced out-ofbalance points away from the central axis, there will be a tilting tendency, but the voltages will still be equal, the zero resultant however occurring when the switch 26 is left. Generally, both such conditions will occur and the magnitude of each component (but not the position) will be proportional to the voltages with the switch in the two positions, and these voltages are applied in turn to the wattmeter 37 through an attenuator 41, filter 42 and amplifier 43. It is assumed that a voltage so obtained is displaced by an angle # from a voltage A derived from a photo cell 36 receiving light from a lamp 35 deflected by a patch 33 on the rotor, this voltage being converted to one of constant sine wave form by a device 38, and the wattmeter reading will be proportional to A, B, Cos # from which the magnitude of the out-of-balance can be ascertained if a reading is taken with the phase adjuster turned to give maximum wattmeter reading, signifying Cos # equals unity. If the phase.adjuster is then turned until the wattmeter reads zero, the phase angle between the voltages will be 90 degrees, and the angle of turn of the phase shifter to achieve this will give the angle 34 between the patch 33 and the out-of-balance position 32 on a scale previously calibrated by using a known mass in known positions on the rotor. The operation is repeated with the switch 26 thrown the other way to measure the out-of-balance producing a tilting effect as distinct from the purely vertical vibrations. The apparatus may be adapted for an oscillograph instead of a wattmeter.
Patent GB-991082-A (GB)
Title: Improvements in or relating to feed mechanisms
Inventor: HUTCHINSON PHILIP
IPC: B23Q5/34
Filed: 1963-04-18
Abstract: 991,082. Screw-and-nut gearing. BIRFIELD ENGINEERING Ltd. April 16, 1964 [April 18, 1963], No. 15239/63. Heading F2Q. [Also in Division B3] A two-speed feed drive for a machine tool spindle in, e.g. a multi head drilling machine, comprises a pneumatically actuated piston 13 connected to the spindle for providing a rapid feed, and a screw and a bronze nut 20, 22 driven from a constant speed electric motor 10 through a planetary gear drive, for providing a slow feed. A pulley 3 is keyed to spindle 1 for relative axial movement, and has a spider 40 attached thereto. Two rods 39 carried by the spider pass through holes in a planet carrier 34 rotatably mounted on nut 22 so that the carrier is rotated at the same speed as spindle 1. The carrier supports a counter weight 38 and two planet pinions 36, 37 which mesh with sun gears 23, 24. Sun gear 24 is keyed to nut 24, and sun gear 23 is formed on a sleeve 26 rotatable on the nut. Sleeve 26 has a ring 28 secured thereto which carries teeth 27, for engagement with similar teeth 29 formed on a fixed ring 30. In operation, spindle 1 and carrier 34 are rotated, and air is supplied to cylinder 12. Piston 13 and spindle 1 are fed axially at a rapid rate, until dogs 27, 29 engage. Sun gear 23 is: held against rotation and sun gear 24 along with nut 22 is rotated in the opposite direction to spindle 1 thus allowing piston 13 to move forward at a slow rate. A stop 8 on spindle 1 abuts pulley 3, thus preventing further movement of the spindle but nut 22 continues to unscrew on screw 20 until dogs 27, 29 disengage a limit switch 44 is actuated by a cam rod 46 and reverses the air flow to move piston 13 rearwardly until a second limit switch is actuated to stop the air flow ready for the next cycle.
Patent GB-1463618-A (GB)
Title: Process for the preparation of 5-chloro-2-toluidine
IPC: C07C/
Filed: 1974-04-08
Abstract: 1463618 Preparation of 5-chloro-2-toluidine HOECHST AG 8 April 1974 [18 April 1973] 15452/74 Heading C2C The invention comprises a process for the preparation of the hydrochloride of 5-chloro-2- toluidine which comprises reacting a suspension of 2-toluidine hydrochloride in a halohydrocarbon with not more than 1À2 moles of chlorine per mole of 2-toluidine hydrochloride at a temperature of from 10-70 C. and optionally liberating the free toluidine by treating the so produced hydrochloride with an aqueous base.
Patent GB-139386-A (GB)
Title: Means for producing draught in locomotives applicable also to land and marine boilers
IPC: F23L17/00
Filed: 1919-06-20
Abstract: 139,386. Prat, E. April 17, 1919, [Convention date]. Chimneys.-In draught apparatus for locomotive and other boiler furnaces, in which the furnace gases are drawn through a fan b, the connexion between the fan nozzle c and the chimney d is made by a part e which may be moved with reference to the nozzle, for example by the rod j. When the fan is stopped, the part e is moved to the position shown in Fig. 3, where it forms a throttling-device for steam supplied from ring jets f, surrounding the fan nozzle c, by which means draught is maintained. The ring jet f is supplied with exhaust, and the jet h with live steam. More than one fan and chimney may be employed, two being the usual number. To secure a greater discharge, the fan nozzle c is of the biconical or Venturi form shown.
Patent GB-401217-A (GB)
Title: Improvements relating to foundry moulding sands
IPC: B22C1/02
Filed: 1933-05-30
Abstract: 401,217. Mould materials. BINDERS INTERNATIONAL CO., Ltd., 9, Albert Place, Bridge Street, Manchester.-(Soc. l'AvÚbene; 13, Rue d'Aguesseau, Paris.) May 30, 1933, No. 15576. [Class 83 (i).] An additive composition for moulding sand is made by mixing coal dust with dry, powdered, combustible binder such as sulphite lye, dextrine, farina, or linseed. 75 parts by weight of coal dust may be mixed with 25 parts of powdered sulphite lye. The composition may be added to old moulding sand with or without the addition of fresh sand.
Patent GB-1271614-A (GB)
Title: A process for the manufacture of tricylic compounds
IPC: C07D311/94
Filed: 1970-04-02
Abstract: 1,271,614. Cyclopentenobenzopyrans. F. HOFFMANN-LA ROCHE & CO. A.G. 2 April, 1970 [21 April, 1969], No. 15634/70. Heading C2C. The invention comprises compounds of Formula XIII and optical enantiomers thereof and a process -for preparing compounds of Formula I and optical enantiomers thereof, wherein; in both formulµ, A represents =O or and R represents an unbranched C 1-6  alkyl group; and, in Formula I, C and U represent single or double bonds, U representing a double bond where C represents a double bond and A representing where U represents a single bond; and n represents 1 or 2, by reacting a compound II with an amine HNR 1 R 2 , where R<SP>1</SP> represents hydrogen or a C 1-6  alkyl group, R<SP>2</SP> represents a C 1-6  alkyl or aralkyl group or R<SP>1</SP> and R<SP>2</SP>, together with the nitrogen atom, form a 5- or 6- membered saturated hetero ring optionally containing a further nitrogen or an oxygen atom, in the presence of MnO 2 , if desired hydrogenating the resulting compound IV to give a compound V and reacting compound IV or V with a dione VI to give a compound VII and, if desired catalytically hydrogenating a compound VII, where C represents a double bond, and/or, if desired, treating the obtained compound with a chemical reducing agent, and, if desired, catalytically hydrogenating the product.
Patent GB-335548-A (GB)
Title: Improvements in or relating to electric contacts of the plug and socket type specially applicable to contacts for electrical fuses
IPC: H01H85/20
Filed: 1929-05-21
Abstract: 335,548. Dennis, G. P. May 21, 1929. Plug couplings.-In a plug and socket coupling the end of each plug A is fitted with an insulating nose-piece E and a removable sparking washer F is clamped between the nose-piece and the end of the plug. Specification 264,217 is referred to.
Patent GB-575488-A (GB)
Title: Improvements in or relating to automotive lifting trucks and like vehicles
IPC: B66F9/16
Filed: 1943-09-24
Abstract: 575,488. Lifting trucks. GREENWOOD & BATLEY, Ltd., and WEST, S. B. Sept. 24, 1943, No. 15672. [Class 78 (iii)] A lifting or stacking truck has fixed uprights 12 and load receiving members 7 adapted to be inserted under the load and tilted relative to a hoisting carriage 3 by a vertical lost motion between the carriage and the load receiving members which brings the pivot 13 of the load receiving members closer to a stop or roller 16 on the hoisting carriage. The uprights 2 are mounted at the forward end of the automotive truck 1 and the hoisting carriage 3 is guided on the uprights by runners 4 and hoisted by chains 5. The lifting forks 7 are suspended from the carriage 3 by springs 9 and have pins 13 engaging inclined slots 14 in cam plates 15 fixed to the carriage 3. The vertical arm of the fork rests against a roller 16 and the tension of the spring 9 is such that in the unloaded position the pins 13 are at the upper ends of the slots 14 and the horizontal arm of the fork can readily be pushed under the load. When the carriage 3 is lifted relative movement takes place between the carriage and the forks until the pins 13 reach the lower ends of the slots the forks being thus tilted to the position shown in dotted lines. Fig. 8 shows a modification in which the pin and slot connection is replaced by a link 19 pivoted to the forks at 13 and to the carriage 3 at 20. The spring 9 normally holds the link against an upper stop 21 the fork being then horizontal or downwardly inclined. When the carriage is hoisted the link moves to abut a lower stop 22 and the fork is tilted to the position shown. The tension springs 9 may be replaced by compression springs acting --between abutments on the carriage and the lifting forks.
Patent GB-462223-A (GB)
Title: Improvements in lace fabric
IPC: D03C7/00
Filed: 1935-05-29
Abstract: 462,223. Lacemaking. GOODLEY, C. May 29, 1935, No. 15676. Convention date, Nov. 26, 1934. [Class 74 (i)] A curtain lace fabric is provided in which, along with known effects there is double pillaring of the spool threads alternating vertically and horizontally with warp threads not tied to the spool threads. Alternate spool threads are pillared with their own warp threads and with adjacent spool threads which have been traversed from their own warp threads to adjacent warp threads. The Figure shows an eighteen motion diamond effect made by floating two sets of spool threads a<1>, ax and tying them to selected warp threads b. The spool threads may also be tied to each other, as shown at 7 to form clothing. The interceptors can be withdrawn at various motions, to enable various equal or unequal sided diamond nets to be produced. Ordinary pillaring is obtained by moving the interceptors into the spool threads when the carriages are in the back combs. The thick or double pillaring shown at 10x is secured by introducing alternate interceptors into the threads when the carriages are in the back combs and withdrawing them when the carriages are in the front combs. The fabrie is made on a machine having a warp bar and a spool bar which move one gait and two gaits respectively to the left and to the right on the back and front motions and interceptors which are movable to two positions only.
Patent GB-273277-A (GB)
Title: Improvements in corner joints for bedsteads
IPC: F16B12/58
Filed: 1927-06-13
Abstract: 273,277. Schultz, A. J. June 23, 1926, [Convention date]. Joints and connections.-In a corner joint for bedsteads of the kind comprising a bracket member 11, 12 with a slot 13 in the part 12 and a vertical seating 15 in the interior angle, together with an abutment plate 16 secured to the side bar 9, the part 17 is off-set to lie in the plane of the vertical member of the side bar, while the plate 16 is also provided with an inwardly off-set horizontal flange 19 to engage the underside of the horizontal portion of the side bar. The stud 23 is preferably headed, and the rivet 24 may abut against the outer edge of the finger 14.
Patent GB-515179-A (GB)
Title: Improvements in and relating to bird and small animal cages
IPC: A01K31/10
Filed: 1938-05-26
Abstract: 515,179. Automatic catches, CHANGE WARES, Ltd., and STONHAM, D. J. May 26, 1938, No. 15783. [Class 44] [Also in Group I] A catch or latch for the doors of cages for birds and small animals comprises a flat bar 1 having a backwardly projecting hook 2 adapted to engage and fold around a wire 3 of the door 4 of the cage and a pair of spaced hooks 5 adapted to fold around a different wire 6. The latch is placed in position by deforming the wires. The wire 3 is cranked. The outer end of the device has a curved projection 12 for engagement with a wire 13 of the cage. The open ends of the hooks may face inwardly and outwardly. The door may be provided with a spring 11.
Patent GB-729762-A (GB)
Title: Improvements in or relating to shaft couplings
Inventor: MASSEY BERNARD SIDNEY
IPC: F16D3/16
Filed: 1952-06-23
Abstract: 729,762. Universal joints. BRISTOL AEROPLANE CO., Ltd. June 15, 1953 [June 23, 1952], No. 15819/52. Addition to. 700,768. Class 80 (2). [Also in Group XXVI] A coupling allowing slight angular misalignment between the compressor and turbine shafts 1, 3 of a gas turbine has interengaging teeth 6, 7 on the two overlapping shaft ends and spherical engaging surfaces 8, 9 in the shaft 3 and on a member 10 rotatable in a flange 13 of shaft 1, which flange prevents axial withdrawal of member 10. The latter and shaft 3 are cut away at 14, 15 over spaced sectors so that the coupling parts can be assembled and then locked by partial rotations of member 10 by means of a tool 16 inserted through the hollow shaft 3 to engage recesses 17 on the tool with teeth 18 in member 10. A spring-loaded sleeve 30, slidable in member 10 and in a member 27 secured in shaft 1 by studs 28 and a circlip 29, has peripheral teeth 31 which normally interconnect teeth 25, 26 on members 10, 27 so as to lock the member 10 against rotation in shaft 1. As the tool 16 is inserted 'to engage the teeth 18, it abuts against a flange 33 of sleeve 30 and moves the latter leftwards, so disengaging teeth 31 from teeth 25 and freeing the member 10. Member 30 may have baulking teeth 45, Fig. 2, between the teeth 18 and the flange 33, which co-operate with a groove 47 in the tool 16 to prevent withdrawal of the latter except when the spherical surfaces 8, 9 are engaged. The coupling prevents axial separation of the shafts 1, 3, while a small clearance 39 limits axial movement of the shafts towards each other. Air from the compressor outlet passes through radial passages 34 in member 27 and through the hollow member 30 to cool the turbine rotor, while air tapped from an intermediate pressure stage of the compressor has access through apertures 35 in member 27 to the bearings. Mixing of the two airflows is prevented by seals 5, 38 which also serve to retain grease in the coupling.