baber/WOPTO huggingface dataset:
Patent GB-425364-A (GB)
Title: Improvements in the treatment of metallic sulphides to recover sulphur therefrom
IPC: C01G49/02
Filed: 1933-09-13
Abstract: <PICT:0425364/III/1> In the recovery of sulphur from sulphide ores, e.g. iron sulphide which may contain other metals such as nickel and copper, by treatment with sulphur dioxide, the iron sulphide is treated in the molten condition at a temperature of 1200 to 1500 DEG C., in a Bessemer converter, blast furnace or rotary kiln, the ferrous oxide formed being removed as a slag.  The temperature is maintained by preheating the inlet gases by means of the reaction gases or by introducing an oxygen-containing gas with the sulphur dioxide or by an alternation of these gases both of which may be preheated.  Excess sulphur dioxide in the effluent gases is returned to the process, sulphur being condensed and inert gases being removed so that not more than 20 per cent remains.  In carrying out the invention, an iron sulphide, or a copper matte, is fed in the molten condition with a flux, such as silica, to a converter 1 together a carbonaceous reducing agent whereby the amount of sulphur dioxide in the effluent gases is controlled. Air from a pipe 3 and sulphur dioxide from a pipe 4 are preheated in an exchanger 7 by the effluent gases and pass into the base of the converter.  The effluent gases pass first through a dust removal plant 6, thence through the heat exchanger 7 to a condenser 8 for the sulphur.  After leaving the condenser part of the gases is led away from the plant through a pipe 10 and the remainder goes to a concentrator 9 for the sulphur dioxide, where diluent gases are eliminated before returning the dioxide to the process.  Specification 389,520 is referred to.
Patent GB-439436-A (GB)
Title: Improvements relating to mercerising liquors
IPC: F01B25/14
Filed: 1934-09-05
Abstract: The wetting and penetrating capacity of alkaline mercerizing baths is increased by adding to the baths a p-cymene sulphamide, a mono- or di-carboxylic acid of a mono- or poly-cyclic terpene, and a solution promoter, i.e. a substance commonly used in mercerizing to keep in solution in the bath additions which would otherwise be insufficiently soluble.  Specified solution promoters are phenols such as phenol, a cresol or cresol mixture or a xylenol, aliphatic alcohols containing not more than three carbon atoms, such as methyl or ethyl alcohol, and highly sulphonated oils.  Specified terpenecarboxylic acids are bornylenecarboxylic acid, campholic acid, isocampholic acid, fencholic acid, oxyfencholic acid, hydropinenecarboxylic acid, sabinenic acid, camphoric acid, and cineolic acid.  A small proportion of a hydrocarbon of the benzene series, particularly p-cymene, may also be added to the baths.  In the examples, mercerizing baths are described containing specified proportions of (1) fencholic acid, a p-cymene sulphamide, and crude cresol; (2) bornylenecarboxylic acid, a p-cymene sulphamide, crude cresol and ethyl alcohol; (3) dl-campholic acid, a p-cymene sulphamide, crude cresol, ethyl alcohol and p-cymene.
Patent GB-286996-A (GB)
Title: Improvements in or relating to packing rings for use with pistons, stuffing boxes and the like
IPC: F16J9/16
Filed: 1927-09-28
Abstract: 286,996. Madsen, T. Sept. 26, 1927. Pistons; packing.-Split packing-rings of the box type in which two rings are formed with interengaging projections and recesses, are arranged to prevent, outward expansion of the split ends without restricting expansion elsewhere. One ring 4 may be formed with an eccentric flange 6 engaging a concentric groove 5 in the other ring 3, expansion of the ends of the ring 4 being prevented by contact between the outer sides of the groove 5 and flange 6, while expansion of the ends of the ring 3 is prevented by contact between the inner sides of the groove 5 and flange 6. Alternatively, the flange 6 may be concentric and the groove 5 eccentric, or both rings may be grooved, one groove containing a ring having a flange which engages the groove in the other ring in an eccentric manner. The two rings may be made to differ in resilience.
Patent GB-1401981-A (GB)
Title: Chlorinated copolymers
IPC: C08F2/00
Filed: 1972-06-01
Abstract: 1401981 Chlorinated vinyl chloride copolymers AIR PRODUCTS & CHEMICALS Inc 1 June 1972 [8 June 1971] 25734/72 Heading C3P Chlorinated copolymeric material comprises q groups of formula (CCl 2 CH 2 ); r groups s groups (CHClCH 2 ), t groups (CQYCH 2 ) and u groups (CQYCHCl) wherein q+r+s+t+u=v q+r+u/v is from 0À3 to 0À8 and u+t/v is 0À02 t 0À10 and in each of the groups (CQYCH 2 ) and (CQYCHCl) either Y and Q are methyl or chlorine substituted methyl or Y is H and Q is OR where OR is an alkyl ether or chlorine substituted alkyl ether of less than C 20 , the chlorinated material having a torque value of 500 to 2300 meter-grams at 187 C. and Vicat temperature above 100 C. The material is prepared by chlorination of copolymers of vinyl chloride with isobutylene or vinyl ether. In examples the copolymers used are vinyl chloride/isobutylene, vinyl chloride/lauryl vinyl ether, vinyl chloride/ ethyl vinyl ether, vinyl chloride/vinyl n-butyl ether, vinyl chloride/vinyl iso-octyl ether, vinyl chloride/decyl vinyl ether, and vinyl chloride/ methyl vinyl ether.
Patent GB-297053-A (GB)
Title: Improvements in mechanical roasting furnaces
IPC: F27B1/02
Filed: 1928-09-07
Abstract: 297,053. Metallges. Akt.-Ges., (formerly Metallbank und Metallurgische Ges. Akt.-Ges.). Sept. 13, 1927, [Convention date]. Drawings to Specification. Roasting-furnaces.-In a mechanical roasting- furnace of the superposed hearth type two or more of the hearths are formed with drop openings at different distances from the axis of the furnace in addition to the usual central or peripheral openings. The additional openings may be arranged irregularly or in concentric circles, and they may be fitted with devices for controlling the fall of the ore. The middle hearths are preferably formed with the largest number of additional openings.
Patent GB-316464-A (GB)
Title: Improvements relating to glass
IPC: C03C4/08
Filed: 1928-09-08
Abstract: 316,464. Chance Bros. & Co., Ltd., and Gould, C. E. Sept. 8, 1928. Production of metal.-A glass suitable for protecting pictures, fabrics, or other objects from deterioration when exposed to daylight, absorbs radiation of shorter wavelength than about 3800 A.U. while transmitting at least 70 per cent of normally incident daylight. The glass is made by adding small quantities of any convenient chromium compound and of vanadium oxide to the ordinary batch for producing clear window glass. Specification 15963/08 is referred to.
Patent GB-972478-A (GB)
Title: Improvements in or relating to spinning and doubling machines
IPC: D01H7/18
Filed: 1962-07-05
Abstract: 972,478. Spindle-attachments. SKF KUGELLAGERFABRIKEN G.m.b.H. July 5,1962 [July 7, 1961], No. 25894/62. Heading D1D. A device for rotatably mounting on the upper end of a rotatable spinning &c. spindle comprises a guide having in its surface a helical recess which opens to the upper end of the guide and runs from thence to a point remote from the upper end and at which the thread emerges. As shown, the guide comprises a cylindrical member 16 on a member 16<SP>1</SP> carried by a journal 15 rotatably mounted in bearings in a housing 13 adapted for insertion in a bore in the top of the spindle. The member 16 may be a hollow cylinder in which case the recess is a slot 17 with an enlarged end 17<SP>11</SP> where the yarn leaves it, or it may be a solid cylinder and the recess a groove on its surface. The trailing edge of the groove may be chamfered to help the yarn enter the recess, and the leading edge may be shaped at the upper end of the recess to retain the thread. The member 16 may have an entrainment lip 18 with its tip pointing in the intended direction of rotation of the spindle, the parts 16, 16<SP>1</SP> being adjustable so that the distance between the lip and the point 17<SP>11</SP> may be varied, a locking spring or screw being provided. The distance between the lip and the rotational axis of the device does not exceed the radius of the spindle with which it is employed to allow for doffing. In operation, the peripheral speed of the guide 16 is lower than that of the spindle, and the yarn winds externally round the lower part of the guide and passes to the traveller through the lip 18. The angle of winding remains unchanged throughout the wind, and can be varied by relatively adjusting the parts 16, 16<SP>1</SP>. The yarn passes to the guide 16 from the drafting-rollers through an oval guide which, with its holder, can be raised for doffing and which can be removed from its holder and changed for another according to the external diameter of the guide 16 and the angle of winding required. The mirror axis of the oval equals the external diameter of the guide 16 and the major axis is selected according to the inclination of the yarn.
Patent GB-753722-A (GB)
Title: Improvements relating to electromagnetic clutches
Inventor: MILLER GEORGE ALLAN
IPC: F16D27/112
Filed: 1953-09-19
Abstract: 753,722. Friction clutches; reversing gearing. FERRANTI, Ltd. Sept., 7; 1954 [Sept. 19, 1953], No. 25897/53. Class 80(2) In an electromagnetic plate clutch with automatic compensation for clutch wear. the armature 26 of the stationary electromagnet 25 has a collar 30 determining its position when the magnet is de-energized and controls the clutch through a nut 31 screwed on a non-rotatable rod 14 and abutting against a shoulder 32 in the armature but urged rotationally relative to the rod, in the direction appropriate for pressing the clutch members 10, 11 together, by a torsion spring 33, the ends of which are secured to the nut 31 and to a disc 34 rotationally adjustable on the rod 14 and which is sufficiently strong to maintain the clutch members in light contact when the magnet is de-energized. The rod 14 is held against rotation by a flexible blade 15 secured to its lower end, the other end of the blade being fixed. The disc 34 is held in adjusted position by radial pins 35 held in axial grooves 39 in rod 14 by an encircling spring ring 38. Two identical clutches, with a common input member, may be used in reversing gearing. When the two clutches are de-energized or equally entergized, they slip to the same extent and no rotation of the driven member takes place. If one clutch is energized more than the other, the driven member is rotated in the one or the other direction.
Patent GB-744126-A (GB)
Title: Improvements in or relating to telecommunication systems
Inventor: MERCER RICHARD
IPC: H04Q3/00
Filed: 1950-10-25
Abstract: 744,126. Automatic exchange switches. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. Oct. 24, 1951 [Oct. 25, 1950], No. 25930/50. Class 40 (4). In a cross-bar switch for use in a system using cyclic impulses for marking as in Specification 665,129, a prepare magnet and a hold magnet operate within the period of the same marking impulse. In one arrangement of finders for A groups of A lines, primary switches having contact sets in columns P1, Ql, X1 to PA, QA, XA (not shown) are combined with secondary switches PP, QQ, XX. The primary and secondary switches have common prepare magnets PM1 to PMA. The primary switches may also serve as final selectors. A group of lines 11 to 1A is allotted to primary switch 1, Fig. 1, switches 2 to A and the corresponding line groups not being shown.. Each column of a primary switch is connected to a row in a secondary switch. Prepare magnet PM1 operates at the first impulse of a cycle to control the first row of the secondary switches whenever a contact set is operated in the primary switch 1, Fig. 1. Marking wires to which ground or battery marking impulses are continuously fed are identified by references 1E to AE or 1B to AB. If a call is made on line 12, line relay L12 is followed by prepare magnet PM2 during the the second impulse (units digit 2) of a cycle and during the same impulse, the first free hold magnet HMP1 in a chain of magnets operates with control relay CONP1, ground being connected to marking wire UN12. Relay CONP1 cuts off the rest of the chain till the end of the impulse. The contact set controlled by PM2, HMP1 operates and prepare magnet PM1 follows at the first impulse (tens digit 1) of the next cycle. During this same impulse, ground on TN12 and wire TP operates hold magnet HMPp and control relay CONPp which has a similar function to CONP1. The secondary contact set controlled by HMPp, PM1 operates, cut-off relay C012 follows in series with the upper winding of HMP1 and the line 12 is connected to complete a circuit for a line relay LPp in subsequent equipment. Relay HPp provides a new holding ground for the connection when the slugged line relay L12 falls back. If two or more calls are made simultaneously, they are dealt with in cyclic order. Specifications 652,881,656,559, 679,544, 744,121, 744,122, 744,123, 744,124 and 744,125 also are referred to.
Patent GB-818035-A (GB)
Title: Phenotic antioxidants for use in rubber
IPC: C07C37/14
Filed: 1955-09-12
Abstract: Monohydric phenols substituted in three ring-positions by an aralkyl, a tertiary alkyl and alkyl substituents (see Group IV (b)) may be used as oxidation inhibitors in natural and synthetic rubber compositions.  Specified phenols include 2-alphaphenylethyl-4-methyl-6-tert.-butyl- or tert.-octyl-phenol and 2-benzyl-4-methyl-6-tert.-butyl-phenol.  Examples are: (i) extracted pale crepe compounded with zinc oxide, sulphur, hexamethylene tetramine, stearic acid and the tri-substituted phenols; (ii) raw, uncured GR-S and the tri-substituted phenols; (iii) white compositions of natural rubber, sulphur, zinc oxide, calcium carbonate, stearic acid and the tri-substituted phenols.ALSO:The invention comprises monohydric phenols substituted in three ring positions by an aralkyl, a tertiary alkyl and an alkyl substituent. The compounds may be prepared by reacting an alkyl-phenol with a tertiary olefin and an aralkyl or aralkylene compound.  The aralkyl and aralkylene compounds are defined as compounds which when used to aralkylate a phenol effect attachment of the respective aralkyl radical, e.g. styrene, vinyl toluene or benzyl halides.  Specified alkylation catalysts which may be used are sulphuric acid, benzene or toluene sulphonic acids, activated clays, boron trifluoride, zinc chloride and the iron, tin and aluminium halides.  The preferred compounds have the ring positions ortho to the hydroxyl group substituted by aralkyl and tertiary alkyl radicals, e.g. 2-alphaphenylethyl-4-methyl- or -isopropyl - 6 - tert. - butyl - phenol and 2 - alpha - phenylethyl - 4 - methyl - 6 - tert. - octylphenol.  The tri-substituted phenols are used as oxidation inhibitors in rubber compositions (see Group IV (a)).  In examples: (1) tert.-butyl-p-cresol is reacted with styrene in the presence of sulphuric or fluorosulphonic acid as catalyst; (2) p-cresol is reacted with isobutylene and then with styrene using sulphuric acid as catalyst; (3) 2-benzyl-p-cresol, which may be prepared by reacting p-cresol with benzyl chloride using zinc chloride or powdered iron as catalyst, is reacted with isobutylene using sulphuric acid as catalyst to give 2-benzyl-4-methyl-6-tert.-butyl-phenol; (4) as in (3) but reacting p-cresol with isobutylene and then with benzyl chloride; (5) 2-alphaphenylethyl-4-methyl - 6 - tert. - butyl - phenol is prepared by reacting alphaphenylethyl-p-cresol with isobutylene using sulphuric acid as catalyst or tert.-butyl-p-cresol with styrene using fluorosulphonic acid as catalyst; (6) 2-tert.-butyl-4-alpha-phenylethyl-5-methylphenol is obtained by a process as in (5); (7) 2-tert.-octyl-p-cresol is reacted with styrene using sulphuric acid as catalyst to give 2-tert.-octyl-4-methyl-6-alphaphenylethyl-phenol; (8) a mixture of cresols is reacted with diisobutylene and then styrene using sulphuric acid as catalyst.  Various reaction products similar to those prepared in the examples are also specified in tables.
Patent GB-1153476-A (GB)
Title: Heating Appliance Having A Window.
Inventor: JENNISON ALAN ALFRED
IPC: F24C15/04
Filed: 1966-06-10
Abstract: 1,153,476. Windows for stoves. RADIATION Ltd. 28 April, 1967 [10 June, 1966], No 26000/66. Heading F4W. A translucent or transparent heat resisting panel 5 is held in place in a heating appliance by pressure applied by meta] frames 1, 2 to the stem 7 of a Y section member 4 of slightly deformable heat resistant ma terial. The Y-section member may be formed of two elements 6 of cranked section secured by adhesive during assembly. The free upper ends of the Y-section converge slightly to give a grip on the glass, and the mounting members may be of an asbestos composition. Two rectangular cranked section frames may be stamped from asbestos millboard.
Patent GB-284373-A (GB)
Title: Improvements in or relating to incubators or like devices for maintaining an equableor adjustable temperature for purposes of incubation or for medical, horticultural or like purposes
IPC: A01K41/02
Filed: 1926-10-19
Abstract: 284,373. Godfrey, E. L., and Wrentmore, G. W. Oct. 19, 1926. Propagating-appliances. -An incubator or similar device for horticultural purposes is adapted for heating interchangeably with electric or fuelfed devices. The heater unit shown in Fig. 1 comprises a slide c' fitting in the flue a and carrying by brackets c<3> a resistance unit c' connected to leads c<5>. A handle c<6> is secured to the slide for inserting and removing the unit. The ordinary capsule controlled damper b<3> is fitted and the damper rod may be connected to a switch for controlling the current through the heater. In the modification shown in Fig. 7 a sleeve i of insulating and heat resisting material carries a series of heater resistances j connected with a hand operated switch by which one or more may be cut into the electric circuit as desired. This unit may be fitted into the flue by spring anchor hooks n passing through holes at the bottom of the flue. In either case should the electic heating device fail it may be withdrawn and the usual fuel heater substituted.
Patent GB-712285-A (GB)
Title: Improvements in or relating to apparatus for playing gramophone records
Inventor: PAYNE EDWIN MALCOLM
IPC: G11B17/028
Filed: 1951-10-18
Abstract: 712,285. Gramophone turntables. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Oct. 20, 1952 [Oct. 18, 1951], No. 26192/52. Divided out of 712,256. Class 40 (2) A gramophone turntable is provided with a reversible centering member for selective engagement of records with different sized centre holes. In the embodiment shown in Figs. 1 and 2, the centering member rests in a socket 18 of a turntable spindle 14, and has a small diameter part 20 for locating a record 26, Fig. 1, with the standard small size hole, and a large diameter part 21 for locating a record 27, Fig. 2, with a large diameter hole. In the alternative embodiment, Figs. 3 and 4, the centering member is located by its larger diameter part 21 in a cylindrical recess 12 in the turntable.
Patent GB-269802-A (GB)
Title: Improvements in signalling lamps
IPC: G08B5/38
Filed: 1926-10-21
Abstract: 269,802. Heath & Sons, Ltd., S., Tongue, A., and Mason, A. E. Oct. 21, 1926. Drawings to Specification. Sighting-devices.-A signalling &c. lamp is provided with a sight tube mounted in clips on the top of it and having an eyepiece of rubber or other relatively soft material.
Patent GB-649688-A (GB)
Title: Improvements in concrete constructional elements
IPC: E04C3/44
Filed: 1948-10-11
Abstract: 649,688. Beams. FRANJETICH. Z. Oct. 11, 1948, No. 26375. Convention date, Oct. 13, 1947. [Class 20(iv)] A concrete beam or the like comprises an arch 1 of concrete, which may or may not be reinforced, the slingers 1<SP>1</SP> of which rest upon and are secured to the ends of a tension strip 2 of prestressed reinforced concrete which absorbs the shearing strains of the arch. The beam is thus of (hollow) bow-shape in longitudinal vertical section. Filling material 4 may be used to obtain a horizontal surface above the arch.
Patent GB-997379-A (GB)
Title: Phosphonodithioate esters
IPC: A01N57/22
Filed: 1961-07-20
Abstract: The invention comprises compounds of formula <FORM:0997379/C2/1> where R and R1 are each methyl or ethyl. They are prepared by reacting a compound <FORM:0997379/C2/2> where X is chlorine or bromine with p-chlorobenzenethiol, preferably in an organic solvent in the presence of a base.  The products are pesticides.ALSO:Pesticidal compositions comprise organophosphorus compounds of formula <FORM:0997379/A5-A6/1> where R and R1 are each methyl or ethyl.  Dispersions, solutions and powders are specified.
Patent GB-839419-A (GB)
Title: Door closer with expansion chamber
IPC: E05F3/10
Filed: 1958-08-08
Abstract: 839,419. Door checks. YALE & TOWNE MANUFACTURNG CO. Aug. 18, 1958 [Jan. 8, 1958], No. 26438/58. Class 65(1) A resilient member, as shown a gas-filled bag or capsule 65, is provided in an hydraulic door check so that expansion of the liquid sealed in the door check may take place without an appreciable increase of pressure. A spring urged piston 30 is reciprocated by rotation of shaft 20, carrying an arm 19 linked to the door frame, through a rack 32 and pinion on the shaft 20. When the piston closes oil is forced past flats 33, 33a on the piston, through orifices 60, 61 and past flats 57, 59 on an adjustable valve member 52, whence it flows through the bore carrying shaft 20 back to the piston chamber. The bag 65 is provided with external corrugations to provide maximum contact with the liquid.