baber/WOPTO huggingface dataset:
Patent GB-293556-A (GB)
Title: Improvements in and relating to refrigerant evaporators
IPC: F25B39/02
Filed: 1927-06-22
Abstract: 293,556. British Thomson-Houston Co., Ltd., (General Electric Co.). June 22, 1927. Refrigerating, evaporators for; ice-making. - An evaporator comprises hollow shelves for supporting the material to be cooled, for example moulds containing water to be frozen, the interiors of the shelves being connected together by a header. A single pair of spaced plates bent double and secured together at their edges by strips 4 form two superposed shelves 2, 3 as shown connected to a common header 1. Between the plates are arranged spacing ribs 5 discontinued at the ends of the shelves adjacent the header. The supply of refrigerant through a pipe 12 is regulated by a valve 13 actuated by a float 15, and the vaporized refrigerant is withdrawn from the header through a pipe 17. A slot 20 in the upper end of the pipe 17 extends to the point at which it is desired to maintain the level of oil connected on the surface of the refrigerant liquid during idle periods. Drip from the evaporator when it is defrosted is caught in a tray 22 secured to the bottom plate 23 of the header, which has a groove 25 on its under surface whereby the drip is led to a drain tube 24. The shelves have a slight inclination so that the drip flows to the tray 22. In modifications the hollow plate structure may be bent back and forth several times to form a greater number of shelves or separate flat plates may be connected together by tubes. Refrigerators, domestic.-The evaporator ma be fitted in the cooling compartment of a domestic refrigerator with the machine in a base compartment, the pipes 12, 17 and 24 extending through a cylindrical casing.
Patent GB-460997-A (GB)
Title: Improvements in or relating to systems for the teletransmission of indications of meters or like devices
IPC: G08C19/16
Filed: 1935-06-07
Abstract: 460,997. Electric signalling systems. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ. June 7, 1935, Nos. 16662 and 16663. Convention dates, June 8, 1934 and May 4, 1935. [Class 40 (i)] [Also in Group XL] In a system wherein the indications of a meter are transmitted by currents of a variable frequency derived from the algebraic sum of a constant frequency and a frequency corresponding to the indication, the variable frequency modulates a carrier wave to operate a receiving apparatus wherein the constant frequency component is removed. The modulations are produced by a photo-electric cell 17 subjected to a beam of light which is interrupted by two discs 5, 8. The disc 5 is driven by a meter 1 and has apertures 6 whilst the disc 8 has teeth 12 and is driven at constant speed by a synchronous motor 10. The combined effect of the apertures 6 and teeth 12 produces a sinusoidal current in the cell 17. In a modification, the disc 5 is driven by the planetwheel of a differential mechanism, one wheel of which is driven at constant speed and the other by the motor. Several transmissions relating to different quantities may be effected simultaneously ; the different quantities may employ the same frequency band, each band modulating intermediate frequency waves peculiar to the several quantities which then modulate a single carrier wave ; alternatively different frequency bands which modulate a common carrier may be employed. At the receiver, a synchronous motor is operated by the incoming signals and the constant component is removed by a clockwork or synchronous motor through differential mechanism. An apertured disc may be operated at the resultant speed to control a photo-cell which is connected to a frequency meter. The indications of a plurality of transmitting instruments may be summated at the receiver by differential mechanisms. The Specification as open to inspection under Sect. 91 states that indications may be given by the receiver synchronous motor alone. This subject-matter does not appear in the Specification as accepted.
Patent GB-709221-A (GB)
Title: Device for use in finishing electrotypes
IPC: B41C3/08
Filed: 1951-07-13
Abstract: 709,221. Printing-surfaces. BISHOP, H. L. July 13, 1951, No. 16674/51. Class 100 (2) Mechanical treatment of printing plates.- Apparatus for finishing electrotypes by compressing the metal to eliminate air pockets comprises a table 30 for supporting the electrotype with its face in contact with the table, a series of narrow rollers 78 extending in side by side relation across the width of the table, each roller being supported for individual movement towards and away from the table by an elongated horizontal lever arm having a weight slidably mounted on one end. The table 30 runs between guides 20, 22 on a base 10 which is provided with a groove 16 in which runs a rack forming part of the table. The rack co-operates with a gear 34 driven through gears 36, 38 and reducing gear 42, by a motor 46. The table may actuate reversing switches for the motor at the end of its travel. Transverse plates 26 and 50 are provided at each end of the table, which, together with members 52 form a cavity for the reception of an electrotype to be treated. The roller supporting levers 70, 72 and 92 are pivotally mounted on spindles passed through apertures in a supporting member 60 which is secured to the bed 10 by bolts 64. The levers are provided at one end with adjustable weights 102, 106 so that the pressure exerted by the rollers 78 on the electrotype may be varied, the rollers being mounted in bifurcated extensions of the levers. The levers are further supported in members 100. When the electrotype is positioned on the table 30 the rollers 78 bear against one of the transverse plates 26, 50. A face mat may be positioned in registry with the electrotype before treatment.
Patent GB-344306-A (GB)
Title: Improvements in or relating to machines for straightening rods and pipes
IPC: B21D3/04
Filed: 1930-05-30
Abstract: 344,306. Straightening rods and pipes. HARTLEY, T. W., Great Bents, Oaken, near Codsall, Wolverhampton. May 30, 1930, No. 16705. [Class 83 (iv).] Skew-rolling.-In a machine for straightening rods and pipes by skewrolling of the kind described in Specifications 9293/14 and 334,912, [both in Class 83 (iv), Metals, Working], the primary rolls 2, 3 are angularly adjustable and the roll bearings are encased to exclude scale &c. The rolls 2, 3 are carried by yokes 7, 8 formed with bosses 13 rotatably mounted in recesses in the frame 1 and provided with flanges 14 having arcuate slots 15 to receive studs 16 screwing into the frame for locking the yokes in angularly adjusted position. The adjustment is made by worms 17, 18 engaging teeth on the flanges 14 and rotated by a hand-wheel 20. The rolls are driven by an electric motor 21 and shaft 22 carrying worms engaging wheels 26 on shafts 27 geared by bevel wheels 28, 29 to,shafts 30 mounted in the yokes parallel to the roll shafts and geared thereto by gears 31 enclosed in casings 32. Scale is excluded from the roll bearings 33, Fig. 6, by covers 34 engaging in recesses 35 in the ends of the rolls and grooved for felt packing 36. The secondary rolls 4, 5 and pressure roll 6 are each carried by a yoke 11 having a cylindrical stem 44 mounted in a bore 43 in a slide 41 adapted to be locked in adjusted position in a longitudinal slot 38 in the machine frame 1 by a clamp plate 49 and bolts 50. Each yoke 11 is adjustable transversely of the machine by a hand-wheel 48 and screw 47 working in clamp plate 49 and engaging stem 44, the latter being keyed at 53 to a rotatable disc 51 for angular adjustment.
Patent GB-407847-A (GB)
Title: Electrical transmission system
IPC: H01B9/06
Filed: 1933-06-12
Abstract: 407,847. Cables; insulators. MASSACHUSETTS INSTITUTE OF TECHNOLOGY, Charles River Road, Cambridge, Massachusetts, U.S.A.-(Assignees of Graaff, R. J. van de ; 65, Dana Street, Cambridge, Massachusetts, U.S.A.) June 12, 1933, No. 16751. Convention date, July 5, 1932. [Class 36.] Power is transmitted by conductors insulated by a high vacuum within a conducting casing ; the invention is particularly intended for direct current transmission, but may be applied to alternating or polyphase current. Fig. 1 shows a conductor 4 enclosed in a tubular casing 1 provided with expansion joints 5 and enlarged at 2 to accommodate insulators 3 supporting the conductor 4. The insulator 3 are constructed to provide a controlled voltage gradient and may consist of piles of discs of glass such as that known under the Registered Trade Mark " Pyrex " separated by thin copper films. The glass and copper are fused together and the cylindrical surface is then ground and coated with quartz by evaporation in vacuo. A generator G for high voltages is shown in detail in Fig. 2. It consists of rotating discs 9 on which positive charges are deposited by gas issuing from electrified nozzles 15 and neutralized by the discharge from thermionic cathodes 24 enclosed in the electrode 21 of the transmission system, the whole being enclosed in an evacuated casing 7. The nozzles 15 are surrounded by casings 19 through which the gas is removed after depositing its charge on the discs 9. The discs may be of paper treated with synthetic resin and faced with quartz. A motor may be constructed in a similar manner.
Patent GB-546337-A (GB)
Title: Improvements in or relating to the manufacture of moulded articles and the utilisation of scrap sheet material
IPC: C08L1/02
Filed: 1940-11-22
Abstract: 546,337. Hollow-ware &c. made of synthetic resins. BRITISH CELLOPHANE, Ltd., HEAVEN, G. S., OSWIN, C. R., and HEAVEN, Z., (Representative of HEAVEN, H. S.). Nov. 22, 1940, No. 16812. [Class 2 (iii)] [Also in Group V] Moulded articles, e.g. hollow-ware, are produced from flexible waste sheet material coated or impregnated with heat sensitive material which is dry and non tacky prior to the application of heat, by assembling the pieces in overlapping relation at random in a mould and uniting them by the simultaneous application of heat and pressure. The sheet material may comprise fibrous and non-fibrous cellulose or cellulose derivatives (esters and ethers) fabrics, e.g. cotton, linen, wool, silk rayon ; sheets or films of rubber or rubber derivatives ; metal foil ; shirt collar fabrics ; tissue paper for making aircraft plywood. The heat sensitive material may comprise natural (gum dammar) or synthetic resins of the thermoplastic or thermo-setting types ; rubber derivatives ; and may be applied by brushing dipping spraying etc.; alternatively, sheet material already impregnated with adhesive may be employed, e.g. waxed paper. The moulding operation is preferably carried out in a mould 11 surrounded by a heating or cooling jacket 12 and provided with perforated core 16 having a conduit 18 which may be attached to a vacuum pump. The core is first dipped into a mass of the disintegrated material which is caused by the vacuum to adhere to the outer surface of the core and the latter is then transferred to the mould and pressed downwardly therein. Heat is then applied and the warmed adhesive causes the pieces to adhere to each other and form a shell. Several shells may be thus formed to build up an article to the required thickness. The article may be removed by again applying vacuum to the core and removing it with the article adhering thereto ; or by applying pressure to the core to free it from the article, which is then removed separately from the mould. Hemispherical moulds may also be used and the core may be in the form of perforated metal or wire gauze. The core and mould are preferably slightly conical in form in order to allow pressure to be applied through the core to the article. The rough surface of the moulded articles may be smoothed (a) by coating it with a varnish or lacquer, e.g. nitrocellulose lacquer (b) by covering it with sheet material sealed thereto by heat and pressure. A label may be secured beneath the outer covering. Articles having large flat surfaces may be stiffened by ribs of V-shaped section.
Patent GB-671517-A (GB)
Title: Improvements in or relating to photographic materials
Filed: 1950-07-06
Abstract: Polymeric salts of polyvinyl pyridine are prepared by mixing the polyvinyl pyridine with one or a mixture of free anion soap acids in aqueous solution, or by mixing with the corresponding alkali metal, ammonium, or amine salts and, if necessary, making the aqueous solution weakly acid with, for example, hydrochloric, sulphuric, or acetic acid.  The precipitated and washed salt may be recrystallized from an organic solvent.  The polymer may be one prepared by polymerizing an a -, b -, or g -vinylpyridine or a homologue thereof containing an alkyl radicle of 1 to 4 carbon atoms in the pyridine ring.  A mixture of two or more vinyl pyridines, or a mixture of a vinyl pyridine with up to 20 per cent of another polymerizable vinyl or vinylidene compound or two or more of such compounds (e.g. styrene; acrylic and a -alkyl substituted acrylic esters and amides such as methyl and ethyl acrylates, methacrylamide, and N-methylacrylamide; acrylonitrile; and methacrylonitrile) may be used.  The polymerization may be effected in a liquid medium (e.g. an organic solvent) by the aid of a vinyl compound polymerization catalyst, and is preferably effected in an aqueous acid solution or medium in the presence of a peroxy compound.  The resulting solution is diluted with water and the polymer precipitated by adding a basic solution.  The anion soap acid may be an alkane carboxylic or sulphonic acid of 10 to 18 carbon atoms, a monoalkyl sulphate of 10 to 18 carbon atoms, or an alkylated benzene or naphthalene sulphonic acid wherein the alkyl group contains from 3 to 18 carbon atoms.  The preferred polymeric salts are obtained from poly-2-vinylpyridine and normal alkyl hydrogen sulphates of 10 to 18 carbon atoms.  The polymeric salt may be dissolved in methanol or ethanol or a mixture thereof, and mixed with gelatin, albumin, or polyvinyl alcohol.  In examples, salts are formed by (a) adding aqueous sodium isopropyl b -naphthalene sulphonate to a methanol solution of poly-2-vinylpyridine; (b) repeating (a) using a mixture of sodium alkyl sulphates of 10 to 18 carbon atoms, predominating in sodium alkyl sulphates of 12 carbon atoms; and (c) repeating (a) using a higher fatty acid amide of an aminoethanesulphonic acid, e.g. C17H33CONHCH2CH2SO3Na.
Patent GB-529863-A (GB)
Title: Improvements in electric incandescent lamps for operation in series
IPC: H01K1/70
Filed: 1939-06-09
Abstract: 529,863. Incandescent electric lamps. GENERAL ELECTRIC CO., Ltd. June 9, 1939, No. 16957. Convention date, July 4, 1938. [Class 39 (ii)] In lamps for series lighting at a voltage exceeding 220 volts, in addition to the known breakdown device 10 consisting of a pair of oxidized aluminium plates in contact with one another and bridging the leads 4, 5, the leads themselves are bent at 12, 13 so as to come within one millimetre of one another. This formation ensures that, if the filament breaks while carrying current, the resulting arc is arrested in its upward movement along the lead-in wires at the points 12, 13 and effects fusion at these points to connect the leads together and maintain continuity of the series lighting. The leads 4 and 5 are held apart by a glass bead 11.
Patent GB-1106821-A (GB)
Title: Improvements relating to a structure incorporating a buoyant object
Inventor: KOHRING WALTER
IPC: B65D88/78
Filed: 1965-04-22
Abstract: 1,106,821. Submerged tank. MOTHERWELL BRIDGE & ENGINEERING CO. Ltd. 22 July, 1966 [22 April, 1965], No. 17007/ 65. Heading E1H. An open bottomed storage tank 1 is held submerged below sea level 12 by a series of first anchorages comprising sixteen vertically extending wire ropes or chains 15 each secured at their lower ends to concrete blocks 16, and a series of eight second anchorages 5 the upper ends of which are respectively joined to a ring 9 and the intermediate part 7 of the tank 1 by pairs of mooring ropes 18. Rotation of the ring 9 relative to the tank 1 by shafts 28 coupled to drive pinions 34 on racks (22) Fig. 2 (not shown) carried by the ring 9 causes the tank to be lowered to the position shown in which ropes 15 extend in a generally horizontal direction between the second anchorages 5 and the tanks.
Patent GB-1421080-A (GB)
Title: Process for the preparation of 7-acyl-amino-desacetoxy cephaolsporani acid esters
IPC: C07D501/22
Filed: 1974-04-18
Abstract: 1421080 Rearrangement of penicillin sulphoxides to cephalosporins BAYER AG 18 April 1974 [19 April 1973] 17017/74 Heading C2C Compounds of the general Formula (I): wherein either R 1  is H and R 2  is phenacetyl, phenoxyacetyl, trityl or optionally protected α-aminophenacetyl radical, which may contain one or more nuclear substituents chosen from OH, alkoxy, alkylmercapto, and halogen radicals, or a thienylacetyl or tert.-butoxycarbonyl radical; or R 1  and R 2  form together with the nitrogen atom to which they are attached, a phthalimido or succinimido group; and R 3  is a benzyl, methoxybenzyl, nitrobenzyl, diphenylmethyl, trityl, #,#,# - trichloroethyl, cyanomethyl, 9 - fluorenyl, tent. - butyl, phenacyl, chlorophenacyl, bromophenaeyl, nitrophenacyl, phenylphenacyl, alkoxyphenacyl or trimethylsilyl radical; are prepared by heating a compound of the general Formula (II): to 60-150 C. in the presence as catalyst of a phenol of the Formula (III): in which R 4  to R 8  are identical or different radicals selected from H, NO2, ON, halogen, alkyl or haloalkyl radicals of 1 to 4 C, carbalkoxy radicals of up to 5 C, alkylcarbonyl radicals of up to 7 C, alkylsulphonyl of up to 6 C, benzoyl, phenylsulphonyl and carbophenoxy radicals, and phenyl radicals optionally carrying one or more substituents chosen from the radicals defined for R 4 -R 8 ; provided that in Formula (III) only one of R 4 -R 8  can be a halogen atom and that not more than two of R 4 -R 8  can be hydrogen atoms.
Patent GB-1198063-A (GB)
Title: Electromeric Embossing Process
IPC: B44C1/24
Filed: 1969-04-01
Abstract: 1,198,063. Embossing. E.I. DU PONT DE NEMOURS & CO. 1 April, 1969 [18 Oct., 1968], No. 17065/69. Heading B6J. Synthetic microporous sheet material consisting of a porous fibrous substance coated on one side with a microporous synthetic polymeric layer is embossed by being laid with the polymeric layer downwards on a heated electroform embossing-plate 3, lowering a platen 19 by means of a pneumatic ram cylinder until an uninflated elastomeric bladder 7 is almost in contact with the sheet material, and inflating the bladder with air from a pressure line 15 through a valve 13 controlled by a sensing arm 5 engaging an extension of a heated supporting plate 2 for the plate 3 and actuating a solenoid 17.
Patent GB-515637-A (GB)
Title: Process for the manufacture of phthalocyanine sulphonic acid chlorides
IPC: C09B47/24
Filed: 1938-06-08
Abstract: 515,637. Phthalocyanine, derivatives. I.G. FARBENINDUSTRIE AKT.-GES. June 8, 1938, No. 17071. Convention date, June 8, 1937. [Class 2 (iii)] Phthalocyanine sulphonic and chlorides are manufactured by the action of chlorsulphonic acid at an elevated temperature on phthalocyanines, or on phthalocyanine sulphonic acids, the reaction in the latter case proceeding in such a way as to convert the sulphonic acid groups already present into sulphochloride groups with or without the introduction of additional sulphochloride groups. The reaction is advantageously performed in the presence of sodium chlorsulphonate or phosphorus pentachloride, particularly when starting with non-sulphonated phthalocyanines. The sulphochloride groups may be partially saponified during the working up operations. The products may be used as starting materials for the manufacture of phthalocyanine dyestuffs, e.g. by reacting them with alcohols or phenols. In examples : (1) copper phthalocyanine is heated with chlorsulphonic acid to produce the tetrasulphonic acid chloride ; (2) metal-free phthalocyanine is similarly treated : (3) a mixture of copper phthalocyanine di- and trisulphonic acids similarly yields a product similar to that of (1).
Patent GB-1319391-A (GB)
Title: Presses
IPC: B30B1/26
Filed: 1971-05-26
Abstract: 1319391 Mechanical presses ZDARSKE STROJIRNY A SLEVARNY NARODNI PODNIK 26 May 1971 [10 June 1970] 17090/71 Heading B5F [Also in Division F2] A press comprises main drive means operable to drive a slide member 14 through a toggle linkage 10, 12, and auxiliary drive means operable to vary the configuration of the toggle linkage during operation of the first drive means, the stroke of the slide member being variable. The main drive means comprises a drive wheel 3 carrying an eccentric 4 on which is adjustably mounted a second eccentric 5. The upper link 10 of the toggle linkage is mounted on the eccentric 5. The auxiliary drive means comprises an eccentric 16 on which is mounted a link 17 pivotally connected to a two-arm lever 20 pivoted at 22 and connected by a link 24 to the central pivot 11 of the toggle linkage 10, 12. The effective lengths R and L of one arm of the lever 20 and of the link 24 respectively can be varied by means of threaded members 21 and 25. By adjusting these members 21, 25 and effecting relative rotation of the eccentrics 4, 5, the total slide stroke, the length of the working portion of the slide stroke, and the slide speed can be varied. Fig. 3 (not shown) shows a press having additional slides (14a, 14b).
Patent GB-808610-A (GB)
Title: Improvements in or relating to linear indexing mechanism
IPC: B23Q5/50
Filed: 1957-05-30
Abstract: 808,610. Linear indexing. GEAR GRINDING MACHINE CO. May 30, 1957 [Aug. 27, 1956], No. 17199/57. Class 60. A linear indexing mechanism comprises a rotary screw E extending the length of the series of index points, a nut F engaging the screw adapted to advance the work relative to the tool operating thereon throughout the series, means for intermittently rotating the screw, a rotary index plate H coupled to the screw having gashes H<SP>1</SP> spaced to correspond to the minimum spacing of the index points, a lock pin I for engaging the gashes, means operating upon the unlocking of the pin for starting th e screw rotating means and a counter N for the successive registrations of the gashes with the lock pin during rotation of the screw adapted after a selected number of counts to stop the rotating means and re-engage the lock pin. In a grinding machine for fashioning and sharpening the teeth S<SP>1</SP> of a broach S, the work holder C is on a carriage B mounted on the machine frame A, in an arm G depending from the carriage is a nut F engaging a screw E mounted in the frame A. The screw E is intermittently rotated, through stepdown transmission L<SP>1</SP>, by a hydraulic motor L controlled by a valve M. To index, solenoid Q<SP>3</SP> is energized moving valve Q to a position for admitting pressure to the bottom of a piston in a cylinder K<SP>1</SP> thus rocking a lever J to withdraw the lock pin I from a gash H<SP>1</SP> in the index plate H mounted on the end of screw E, after the withdrawal, an adjustable screw J<SP>3</SP> on the lever J actuates a plunger M<SP>1</SP> operating the valve M to start the motor L to rotate the screw E. A cam P on the screw E successively operates a limit switch O sending electrical impulses to the counter N, one for each gash H<SP>1</SP> which passes the lock pin I, after the number of impulses for which the rotary dial N<SP>1</SP> of the counter is set, an electrical impulse is sent to energize solenoid Q<SP>4</SP> moving valve Q to a position for admitting pressure to the top of the piston in cylinder K<SP>1</SP>, whereupon lever J is rocked to stop the hydraulic motor L and re-engage the lock pin I with a gash H<SP>1</SP>. The solenoid Q<SP>3</SP> for initiating indexing may be energized manually or automatically after the completion of grinding in one index position. A limit switch R operated by the lever J at the completion of its movement for locking the index plate may either operate a signal or start the grinding operation.