baber/WOPTO huggingface dataset:
Patent GB-497292-A (GB)
Title: Improvements in and relating to wet spinning of flax, hemp, and similar vegetable fibres
IPC: D01H13/30
Filed: 1937-06-21
Abstract: 497,292. Spinning flax &c. in ring frames. HAMEL, E. June 21, 1937, No. 17217. [Class 120 (ii)] In a wet spinning frame for spinning flax, hemp and the like comprising a hot water bath, drawing-rollers and ring and traveller apparatus, the ring is continuously supplied with grease or other water-repellent substance in solid form. Grease is supplied from a cup r or a gun to a hole p in the ring, and passes by way of a slot q in the rail to the lower edge of the ring.
Patent GB-864971-A (GB)
Title: Hollow girders of angular cross-section
IPC: E04C3/07
Filed: 1959-05-21
Abstract: 864,971. Structural metalwork. GABS A. G. May 21, 1959 (Oct. 7, 1958], No. 17342/59. Class 20(2) A box section girder comprises a sheet of metal bent to shape and joined along its longitudinal edges by tongues 12, 13 which lie within rebates 20, 21 extending along the length of each edge, the sides of the girder having rows of rectangular holes. A number of separate stepped portions may replace the rebates 20, 21.
Patent GB-570896-A (GB)
Title: Improvements in stock feeding mechanism for capstan and turret lathes and automatic machines
IPC: B23B13/02
Filed: 1943-10-21
Abstract: 570,896. Turning. HORRMAN, J. G., and PETTITT, B. A. Oct. 21, 1943, No. 17369. [Class 83 (iii)] Mechanism for feeding bar or tube stock in capstan or turret lathes or automatic machines comprising an openended tubular member 10 adapted to be disposed in axial alignment with the hollow headstock spindle 11 of the machine, a piston 50 within the member, means for applying pressure fluid to the end of the member to urge the piston towards the headstock and a valve 29 controlling the admission of fluid to the tubular member is characterised in that the mechanism for controlling the valve is connected with control means for operating the machine chuck whereby the valve control mechanism is operated by the chuck control means. At the headstock end, the member 10 is slideably supported in a saddle 14 on a pillar 13 and at the other end is rotatably supported on a pillar 12 so that the tube may be moved out of alignment with the headstock spindle for the insertion of the stock bar 52. Pressure fluid from an inlet 27 may pass into the member 10 through a control box 26 in which a valve 29 (not shown) is operated by a lever 31 so as to be closed when the lever engages a fixed stop 34 and wholly or partly open when it engages an adjustable stop 36. One end of the lever is coupled to a rod 33 adapted to engage the hooked end 43 of a bell-crank lever 41, the other end of which is connected by a rod 45 to a lever 47 adapted to operate the chuck of the machine. On opening the chuck, the valve 29 is opened so that the piston 50 feeds forward the stock bar until the chuck is closed, when a spring 37 moves the lever 31 to close the valve 29. In a modification, the lever 47 is connected to the valve lever through a flexible wire.
Patent GB-1386694-A (GB)
Title: Process for increasing the reactivity at solid surfaces
IPC: B01J37/00
Filed: 1972-04-14
Abstract: 1386694 Catalyst process NORTON CO 14 April 1972 [21 April 1971] 17389/72 Heading B1F The surface of catalyst 2 is continuously or periodically renewed during the course of a reaction carried out in reactor 1 by moving abrasive pad 3 against it, pad 3 consisting of a porous matrix containing abrasive particles. In Fig. 3 (not shown), pad 3 takes the form of an endless belt. The catalytic hydrogenation of ethylene and catalytic oxidation of carbon monoxide to carbon dioxide are exemplified.
Patent GB-1158142-A (GB)
Title: Transistorized Time Base, Especially For Television Cameras, Monitors And Receivers
Inventor: ATTEW JAMES EDWARD
IPC: H03K4/72
Filed: 1965-04-26
Abstract: 1,158,142. Transistor sawtooth circuits. AUTOMATIC INFORMATION DATA SERVICE Ltd. 22 July, 1966 [26 April, 1965], No. 17422/65. Heading H3T. A sawtooth generator comprises a pair of emitter followers VT 1 , VT 2  feeding deflection coils L, having a capacitor C connected in feedback path, the capacitor being charged or discharged via a constant current transistor VT 3  the current of which is controlled in dependence on the current in the deflection coils L. In the field time base shown for television equipment, the capacitor C is repetitively discharged by field pulses applied via diode D and then recharged via the constant current transistor VT 3 , the scan being linearized by the voltage across resistor R f  which controls the current of VT 3 . An amplitude control Rv is provided.
Patent GB-266200-A (GB)
Title: Improvements in and connected with combined reaper and threshing machines
IPC: A01D41/06
Filed: 1926-07-12
Abstract: 266,200. Mitchell, W. July 12, 1926. Trains of rotary spindles with prongs.-Straw is delivered from a combined reaper and thrashing machine by rotary members 32.
Patent GB-1007706-A (GB)
Title: Improvements in or relating to refractory heat recuperators
IPC: F28F21/04
Filed: 1962-05-07
Abstract: 1,007,706. Pipe joints. TEXTRON Inc. May 7, 1962 [Dec. 13, 1961], No. 17521/62. Heading F2G. [Also in Division F4] In a refractory recuperator, one end at least of a vertical flue gas tube or tube section is cemented into a recess 32 in a tile 8 forming part of a wall defining the flow path for the fluid (e.g. air) flowing over the tubes, the tube end and/or the recess being so shaped as to prevent the cement from falling out should the bond loosen under operating conditions, due, e.g. to thermal stress or vibration. The tiles shown are recessed on both sides to accommodate the ends of neighbouring tube sections 17, 26 forming part of a tube column; and, to provide a key for the cement 38, the recesses may have grooves 41 (Fig. 4), or the tube end may be grooved as shown at 40 in Fig. 3. In other forms described the tube end may be shouldered to support the cement bond (see Figs. 2 and 7, not shown). In a further form (Fig. 5), the joint includes a heat-resistant resilient sealing member 43 comprising a fibrous packing inserted by caulking.
Patent GB-1024155-A (GB)
Title: Improvements in or relating to feeding devices suitable for feeding metal stock to a rolling position
Inventor: SAXL KAREL
IPC: B21B13/18
Filed: 1963-05-03
Abstract: 1,024,155. Rolling. IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd. June 29, 1964 [May 3, 1963], No. 17658/63. Heading B3M. A feeding device, suitable for feeding metal stock to a pendulum mill, comprises a pair of feed rolls 7 which have brakes applied to their driving spindles in order to preload the spindles torsionally. Thus when a workpiece 6 is urged backwardly by the working rolls 4 of the pendulum mill 2, the feed rolls are prevented from reverse rotation. The rolls 4 are mounted on arms 1 oscillated by cranks 3. Shaped brake blocks 11 are urged against wheels 10 attached to the roll driving spindles. Channel members 12 support the brake blocks and are urged together by springs 14 on tie rods 13. Alternatively internally expanding brakes may be employed.
Patent GB-108300-A (GB)
Title: Improvements in Processes for Vulcanizing Rubber and Products Obtained thereby.
Inventor: HOPKINSON ERNEST
IPC: C08L7/00
Filed: 1916-12-08
Abstract: 108,300. Hopkinson, E., (Astromislensky, 1.). July 28, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Vulcanizing materials and compositions. - Natural or synthetic rubber is vulcanized, preferably in the absence of sulphur, by treatment with (1) an organic medium containing or adapted to produce oxygen, (2) a fluid medium or a compound containing oxygen and nitrogen, (3) a vulcanizing-agent containing oxygen, in the presence of lead or other metallic oxide cr of a nitrogenous or' other anti-ageing material or of both a metallic oxide and an antiageing material. Accelerating-agents also may be added. The invention is applicable to synthetic rubbers from isoprene, erythrene, and dimethylerythrene. In an example. 50 grms. of rubber are mixed with 2 grms of 1-3-5 trinitrobenzene, 1 grm. of naphthylamine, and 10 grms. of lead oxide, and the mixture is vulcanized by heating for 55 minutes under a steam pressure of 45 lb. per sq. in. The following examples of suitable vulcanizing-agents are specified, namely :-Mono, di, and tri nitrobenzols and toluols, tri and tetra nitronaphthalenes, picric and picramic acids, picryl chloride, artificial musk, nitrocyclohexane, aurotin and many other nitro dye-stuffs. Aniline, naphthylamine, pyridine, piperidine and di-isoamylamine are used as accelerators in the presence of metallic oxides; they also prevent ageing. Amines may be replaced by traces (0.05 per cent.) of sulphur, antimony, or substances having an alkaline reaction, for example, sodium alcoholate. Oxides of lead, zinc, calcium, magnesium, and barium also act as accelerators. The nitro-compounds and other substances may be employed under all the conditions under which sulphur is employed for vulcanization, thus the rubber may be immersed in a fused nitro-compound or solutions thereof may be mixed with rubber solutions.
Patent GB-543793-A (GB)
Title: Improvements in or relating to tool holders for lathes and like machine tools
IPC: B23B29/24
Filed: 1940-12-13
Abstract: 543,793. Turning. THORNTON, P. P., SHAW, F. M., and PULTRA, Ltd. Dec. 13, 1940, No. 17669. [Class 83 (iii)] Turret tool holders, particularly for small precision lathes used by watch and fine instrument makers, are secured in place by a T-head bolt 3 and nut 5 that clamps the flanged bush 1 in position. The lower part of the bush is tapered slightly and the turret 7 is correspondingly tapered. A washer 13 with a key 14 projecting into a slot in the bolt separates the turret from a clamping nut 16. A spring strip clamped in a groove in the turret has an extension partly circling the turret and ending in a projection engaging spaced notches in the flange of the bush to index the turret. The spring may be secured to the flange and engage notches in the turret. The aperture in the nut 16 is large enough to pass over the nut 5 so that the turret may be removed and replaced without disturbing the setting of the bush 1. Holes 21 are provided to give access to sunk screws 10 that clamp the tools in holes 8. The turret and nut 16 have handles 18, 17 for effecting rotation and clamping. The handle 17 carries a spring pressed washer 20 provided with a flat. When the flat is in the position shown, the washer 20 engages a lug 19 to prevent the nut 16 from being slackened more than enough to permit indexing. When the turret is to be removed the washer 20 is turned to bring the flat towards the lug 19 permitting free rotation of the nut. In modifications the nut and washer are provided with slots engaged by spring or screw projections or plungers to provide for the normally restricted movement, or a spring pressed ball and groove may be employed. A spring plunger may be employed for indexing.
Patent GB-1255437-A (GB)
Title: Improvements in or relating to tablet lubricants
IPC: A61K9/46
Filed: 1970-04-14
Abstract: 1,255,437. Tablet lubricant. GRUPPO LEPETIT S.p.A. 14 April, 1970 [24 April, 1969], No. 17690/70. Heading A5B. A tablet lubricant comprises sodium benzoate and 3-6% by weight of a liquid additive selected from: liquid petrolatum, dimethylpolysiloxanes with a viscosity below 1000 centistokes and polyoxyethylene glycols having viscosities between 200 and 6000 centistokes. The lubricant may be prepared by slurrying sodium benzoate with a solution of the additive in a volatile solvent e.g. CH 2 Cl 2 , CHCl 3  or CCl 4 , removing the solvent by evaporation and grinding the resultant. The lubricant is especially useful for effervescent pharmaceutical tablets, examples of which are given in which the medicaments are ascorbic acid, 16α-methylprednisone hemisuccinate, prednisone hemi succinate and aspirin.
Patent GB-1086860-A (GB)
Title: Fibre recovery process
IPC: C08B30/00
Filed: 1966-04-22
Abstract: Fibres are separated from frangible agglomerated materials (e.g. starch-fibre-water slurries) by (a) subjecting an aqueous dispersion of such an agglomerate to a first separation step adapted to retain the fibre in a residue and pass pulverulant material with the aqueous liquid to obtain a first filtrate; (b) grinding the fibre residue from step (a) and adding aqueous liquid thereto; (c) repeating steps (a) and (b) a further three times to obtain respective second, third and fourth filtrates and (d) feeding respectively the fourth ad third filtrates counter-currently to become the aqueous liquids added to the ground fibre residues from the second and first separation steps, whereby substantially all of the pulverulant material is contained in the first and second filtrates.  The separator device employed may be that of Specification 1,085,674. The second filtrate may also be subjected to countercurrent feeding to become the aqueous liquid initially added to the frangible agglomerate, as in step (d).  The starch may be a degerminated crude corn starch.  A diagrammatic flow chart is given (not shown).
Patent GB-772166-A (GB)
Title: Process for the dehydrobromination of -a-brominated keto-steroids
IPC: C07J41/00
Filed: 1955-06-20
Abstract: The invention comprises mono- and di-carbalkoxyhydrazones of ketosteroids of general formula RO.CO.NH.N : R1, wherein R1 is the radical of an a ,b -unsaturated ketosteroid which may contain an additional RO.CO.NH.N : group, and R is an alkyl group containing up to 7 carbon atoms; together with a process for the production of a ,b -unsaturated ketosteroids by reacting an alkyl carbazate (RO.CO.NH.NH2) with an a -bromo-ketosteroid in the presence of an organic carboxylic acid containing up to 8 carbon atoms as solvent, and hydrolysing the resulting hydrazone, preferably with a mixture of acetone and aqueous hydrochloric acid.  The process is particularly applicable to a -bromo-ketones wherein the keto group is in position 3, but other positions, e.g. 12, are possible.  In examples: (1) 4-bromo-17b -acetoxyaetiocholan-3-one in acetic acid is treated with ethyl carbazate and the mixture run into water, when the ethoxycarbonylhydrazone of testosterone acetate separates and is hydrolysed with aqueous acetone and HCl to testosterone acetate; (2) 4 - bromo - 17a  - hydroxy - 21 - acetoxy preg - nane-3,20-dione in acetic acid is warmed with ethyl carbazate and the mixture then hydrolysed as in (1) without isolation of the hydrazone, yielding 17a -hydroxy-21-acetoxy-D 4-pregnene-3,20-dione; similarly, 4-bromo-21-acetoxypregnane-3,20-dione yields desoxycorticosterone acetate, 4 - bromo - 17a  - hydroxy - 21 - acetoxypregnane-3,11,20-trione yields cortisone acetate, (a) via the mono- and (b) the bis-ethoxycarbonylhydrazone; 4 - bromopregnane - 3,20 - dione yields progesterone via the bis-ethoxycarbonylhydrazone, and 4 - bromo - 17b  - acetoxyaetiocholan-3-one with methyl carbazate gives as intermediate the methoxycarbonylhydrazone of testosterone acetate. Specifications 668,533 and 760,362 are referred to.
Patent GB-760167-A (GB)
Title: An arrangement for allowing an electrical apparatus to be connected in series in ordisconnected from an electric circuit without thereby breaking the said circuit
IPC: G01R1/20
Filed: 1954-06-17
Abstract: 760,167. Two-part couplings combined with switches. TELEMECANIQUE ELECTRIQUE June 17, 1954 [Sept. 17, 1953], No. 17865/54,. Class 38 (1). To permit removal of apparatus such as an ammeter A connected in series in. a power circuit between terminals B, B<SP>1</SP>, without interrupting said circuit, the terminals b, b<SP>1</SP> of the ammeter are adapted to engage spring plungers 6, 7 and to hold them depressed when the ammeter is in its operative position so that the circuit is from terminal B through a bar 2 and lead 9 to plunger 7, thence through the ammeter to plunger 6 and through a lead 10 and a bar 3 to terminal B<SP>1</SP>. On removal of the ammeter the plungers are released and portions 6b, 7b thereof engage bars 2, 3 and short-circuit terminals B, B<SP>1</SP> through leads 9, 10. The short-circuit is removed on replacement of the ammeter which depresses the plungers.
Patent GB-917817-A (GB)
Title: New phenothiazine derivatives and processes for producing such derivatives
Inventor: HABICHT ERNST
IPC: C07D207/277
Filed: 1961-05-16
Abstract: The invention comprises phenothiazines of the general formula <FORM:0917817/IV (b)/1> and their pharmaceutically acceptable acid addition salts, wherein X represents a hydrogen or a chlorine atom, R1 represents a methyl, ethyl, propyl, methoxyethyl or methylmercaptoethyl group and R2 represents a methyl or ethyl group and the preparation thereof by reacting a hydrohalide ester or a tosyl ester of an appropriately substituted 3-hydroxymethyl pyrrolidine with phenothiazine or 3-chlorophenothiazine or an N-alkali metal salt thereof in pyridine, xylene, or dioxane at the boiling point of the solvent.  The compounds may also be prepared using the N-magnesyl salt of the phenothiazine or by reacting a phenothiazinyl-10-carboxylic acid halide with an appropriately substituted 3-hydroxymethyl pyrrolidine and decarboxylating the resulting ester by heat.  The bases may also be converted into their quaternary ammonium salts.  1 - R2 - 3 - R1-3-hydroxypyrrolidines and the hydrohalide esters and tosyl esters are prepared by reacting a R1-substituted malonic acid ester with an aminoethylhalide, R1R2N.CH2CH2Hal, to give a malonic acid ester R1R2N.CH2.CH2.C (R1)(COOR11)2 in which R1 is a radical which can be split off by hydrogenolysis and R11 is an alkyl or aryl group, catalytically hydrogenating the ester to the pyrrolidone of the general formula <FORM:0917817/IV (b)/2> reducing this to the 3-hydroxypyrrolidine and forming the ester with hydrohalic acid or p-toluenesulphonic acid. Specifications 708,896 and 813,428 are referred to.
Patent GB-1537312-A (GB)
Title: Conveying apparatus
IPC: B21D43/10
Filed: 1977-03-28
Abstract: 1537312 Endless conveyers WILKINS & MITCHELL (POWER PRESSES) Ltd 28 March 1977 [1 May 1976] 17891/76 Heading B8A A conveyer for transferring workpieces (2) (Fig. 1, not shown) to a press (4), comprises a carriage 11 laterally slidable on rails 9, 9, on a horizontally disposed frame member 8 extending between a table (3) and the press (4). A cam plate 21 is mounted for vertical displacement relative to the carriage 11, and has a slot 25 which receives a cam follower roller 16 carried by an endless chain passing around four sprocket wheels 18 carried by the carriage 11. The roller 16 also engages a vertical slot 19 formed in the carriage 11. On rotation of the endless chain by a motor 20, the carriage 11 is moved to the right by the horizontal movement of the follower 16. As the latter moves around the top right hand sprocket 18 (as viewed in Fig. 2) the follower 16 moves downwards in the slot 19 and thus moves the cam plate 21 vertically downwards. This causes rotation of a crank 27 as a follower 26 (carried by the crank) moves along an oblique section D of a cam slot 22 in the plate 21. The crank 27 is rigid with a gear sector 30, which meshes with a pinion 32. The latter carries a crank 33 which is pivotally connected to a link 35. The other end of the link 35 is pivotally connected at 36 to a trolley 29. The latter has a member 38 which carries suction cups (37) for engaging the workpieces (2). Movement of the cam plate 21 downwardly thus causes downward movement of the trolley 29 as the follower 26 moves along section D of the cam slot 22, and a workpiece (2) is deposited on the table of the press (4). Next there is a dwell corresponding to a cam slot section E. Then in cam section F the action is such to cause an upward return movement of the trolley 12. A similar sequence occurs after the carriage moves horizontally back to a position over the table 3, when the trolley is caused to move downwardly, pick up a workpiece (2), and move upwardly. In a modification (Figs. 6 and 7, not shown), the linkage 27, 33, 35, is replaced by an equivalent linkage using a rack and pinion mechanism.
Patent GB-714166-A (GB)
Title: Manufacture of azo-dyestuffs
Filed: 1951-07-27
Abstract: The compound of the formula <FORM:0714166/IV (b)/1> is prepared by reacting 1-amino-7-naphthol with chloracetyl chloride and treating the product with sulphurous acid or a salt thereof, e.g. sodium sulphite.ALSO:The invention comprises dyestuffs of the formula: <FORM:0714166/IV(c)/1> where R is an o-oxy mononuclear radical of the benzene series, preferably free from solubilizing groups.  These are made by coupling the appropriate diazotized o-aminophenol with 1-sulphoacetylamino-7-naphthol.  They are suitable for dyeing and printing animal fibres by the after-chroming or single bath chroming method or as pre-metallized dyes.  An example shows the preparations of the dyestuff from diazotized 5-nitro-2-aminophenol and the dyeing of wool herewith in bluish green shades by the metachrome process. The following substituted 2-aminophenols may also be used as diazo components: 4-chloro, 4 : 6-dinitro, 4-nitro-6-acetylamino, 4-chloro-6-acetylamino, 4-chloro-6-nitro-, 4-chloro-5-nitro, 4 : 6-dichloro, 4-nitro and 4-methyl-6-nitro.  Specification 493,841 is referred to.
Patent GB-1387093-A (GB)
Title: Electromagnetic relays
IPC: D04B15/66
Filed: 1973-04-13
Abstract: 1387093 Relay armature mounting SIEMENS AG 13 April 1973 [17 April 1972] 17931/73 Heading H1N A relay armature 8 is retained to rock on a knife edge 16 by a spring 2 attached to the yoke 1 and extending through an armature aperture 9 to engage the armature at 14 and beyond the armature where its end 5 projects out of the plane of its centre section 3 so as to allow insertion of the armature in the direction of the arrow 11 during assembly of the relay. During assembly thereof transverse lugs 6 on the spring pass over edges 12 of apertures 9 and then engage behind edges 13 to lock the armature on the yoke.
Patent GB-567457-A (GB)
Title: Improvements in or relating to method and apparatus for operating on wire stock
IPC: B21C1/30
Filed: 1942-07-15
Abstract: 567,457. Straightening and drawing wire. AJAX MANUFACTURING CO. July 15, 1942, No. 18042/43. Convention date, Aug. 25, 1941. Divided out of 566,596. [Class 83 (iv)] Apparatus for straightening and drawing wire stock 21 comprises a slide 25 having a wire-drawing die 26 thereon, means for reciprocating' the slide 25 for intermittently pushing the die over the stock 21, feed rolls 34 adjacent the slide for the drawn stock, a second pair of feed rolls 36 separated from the rolls 34 by means 38, 39 for straightening the drawn stock 21, and means for driving the feed rolls during the idle movement of the die. The drawing unit 20 shown is disclosed in Specification 483,884, and the whole machine in Specification 566,596.