baber/WOPTO huggingface dataset:
Patent GB-1273844-A (GB)
Title: Abrasive blasting system
IPC: B24C3/12
Filed: 1970-01-13
Abstract: 1,273,844. Blasting. VACU-BLAST CORP. 13 Jan., 1970 [31 Jan., 1969], No. 1660/70. Heading B3D.  An abrasive blasting system comprises means 40 for providing a constant flow of air at uniform pressure, a conduit 42 connected to the means 40, an intermediate conduit 66 connected to the conduit and having a substantially rectangular cross-section an elongated nozzle 22 having an inlet end fixed to the intermediate conduit section, the nozzle having a constant width and a rectangular cross-section throughout its length the thickness of the nozzle being small in comparison to its width and decreasing from a maximum dimension at its inlet to a minimum dimension at its outlet, and feed means 52 for dispensing abrasive material into the intermediate conduit at a substantially uniform rate along a line extending transversely across the full width of the nozzle near its inlet. The system may be used for treating a moving strip and have upper and lower nozzles 22,24, connected to the intermediate conduits 66, 66a. The latter are connected by sections 64 to adaptors 62 fixed to pipes 52, 54 leading from a feeder pot 50, pressure pot 48 and hopper 36 supplied with abrasive, such as glass beads or steel shot from 10 to 1000 microns in size, delivered from a cyclone separator 34 connected to a ducted floor 32. The intermediate conduits 66, 66a are also connected by adaptors 90 and sections 92 to conduits 42 leading from a low pressure blower 40. The intermediate conduits include valves 68 which are adjustable to control the flow of abrasive to the nozzles, each valve consisting of a pair of flexible members which can be moved towards or away from one another by a piston- and-cylinder device. The nozzles may have an abrupt or gradual taper from their maximum thickness at their inlet ends to their minimum thickness between the inlet and outlet ends, Figs. 2a and 2b. In other embodiments having a single nozzle, the nozzle may be horizontal and oscillatable about an axis transverse to the nozzle by an hydraulic actuator, or the nozzle may be vertical and oscillated about a longitudinal axis by an actuator. The abrasive may be fed to the nozzle by air pressure or gravity.
Patent GB-484236-A (GB)
Title: Improvements in cartridge feed mechanism for machine guns
IPC: F41A9/33
Filed: 1937-01-20
Abstract: 484,236. Automatic guns. WIMMERSPERG, H. Jan. 20, 1937, No. 1674. Convention date, Nov. 24, 1936. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 23, 1937.] [Class 92 (ii)] Relates to cartridge-feed mechanism for machine guns of the kind in which a single-lever mechanism operates to feed the cartridge belt forward and to push the cartridges from the belt into loading position. According to the invention, the lever mechanism 33 is so pivoted at 34a on the housing that it moves in one plane to feed the belt and in a plane transverse to the first to push the cartridges from the belt. The invention is shown applied to feeding the movable barrel 31 of a double-barrel machine gun as described in Specification 484,235. The pivot pin 34a engages a two-part cylindrical bearing on the feed lever 33 which is controlled by a spring 35. The end 33s of the lever engages a variable-depth groove s, h, r in the barrel extension 32 and the end 33z of the lever penetrates an opening 37a in the cartridge belt 37 to feed the belt when the lever moves in one plane through the angle # and to push the cartridges from the belt when the lever moves in the other plane through an angle alpha. The lever is supported in guides 34f by projections 33qu the ends of which are shaped to suit the lever movements.
Patent GB-932842-A (GB)
Title: Method of manufacturing a composite plate of plastics material
IPC: E04C2/36
Filed: 1960-01-18
Abstract: 932,842. Laminates. DEUTSCHE TAFELGLAS A.G. Jan. 18, 1960 [Jan. 24, 1959], No. 1680/60. Class 140. A building panel, comprising a honeycomb or similar core 3 made of interconnected corrugated strips and facing sheets 7, is made of glass fibrous material impregnated with a settable resin, such as a polyester or epoxy resin, and is characterized in that the edges of the core strips are made rough, for example by cutting the strips from sheet material with a coarse saw, and that the core is pressed into the facing sheets while the resin therein is still in the unset condition. The core strips and one or both facing sheets are provided with perforations such as 9. A shaped panel may be made by using a core and facing sheets of curved form. The edges of the panel may be closed by strips pressed into the facing sheets similarly to and at the same time as the core.
Patent GB-1255480-A (GB)
Title: Improvements in and relating to pipe or duct joints
Inventor: HALLING HORACE PERCIVAL
IPC: F16L27/02
Filed: 1968-01-11
Abstract: 1,255,480. Pipe couplings. AVICA EQUIPMENT Ltd. 2 Jan., 1969 [11 Jan., 1968], No. 1683/68. Heading F2G. In a coupling comprising two tubular end pieces 2, 4 respectively for connection to pipes to be joined and interconnected by a gimbal joint to allow universal movement and by a flexible tubular sheath, such as a metallic bellows 22, surrounding the gimbal joint and joined to each of the end pieces to prevent the escape of fluid from the coupling, the gimbal joint is formed by a four-armed cross-piece 12 positioned within pairs of diametrically opposed lugs 6, 8 extending axially from the end pieces, one pair of lugs being located between the other pair of lugs and a clearance 10 being present between the lugs; the end face of each arm of the cross-piece is connected by a pivot pin 16 to each of the lugs respectively. As shown, the bellows is welded to attachment rings 24 secured to the end pieces, and there are reinforcing plates 20 surrounding the pins 16. The hub 18 and edges of the arms of the cross-piece are rounded to minimize the effect of turbulence in fluid flowing past the cross-piece. In a modification, the pins 16 are integral parts of the crosspiece and the end pieces are made in halves split longitudinally and subsequently welded together after assembly of the cross-piece, the plates 20 being replaced by local thickening of the end pieces.
Patent GB-469037-A (GB)
Title: Improvements in sanitary napkins
IPC: A61F13/15
Filed: 1936-01-18
Abstract: 469,037. Catamenial appliances. INTERNATIONAL CELLUCOTTON PRODUCTS CO. Jan. 18, 1936, No. 1701. Convention date, Jan. 18, 1935. [Class 81 (ii)] A catamenial appliance comprises. an absorbent pad element 5, preferably formed of a number of layers of crepe paper provided with cushion strips 9, 9 of cotton or other fuzzy-surfaced material whose edges cling to the surface of the pad element and thus retain in position narrower, intermediate moisture proof strips 6, 6. The end portions of the pad may be compacted as shown at 51 and the assembly is enclosed in a gauze or like wrapper 11. The strips 6 may be made of crepe paper treated with a solution of aluminium stearate, paraffin or rosin in carbon tetrachloride, or the fibres of the strips may be sized with rosin size. Specification 430,269 is referred to.
Patent GB-598474-A (GB)
Title: Improvements in or relating to electric infra-red heat generators
IPC: H05B3/16
Filed: 1945-01-22
Abstract: 598,474. Caps for infra-red generators. ROBERTS, T. A., and RAPPERFIELD, G. J. Jan. 22, 1945, No. 1701. [Class 39 (iii)] An improved cap for the hollow end of the ceramic or like body of an infra-red generator comprises a flat or outwardly dished plate 1 of circular outline having locating lugs 4 and a flat lug 6 for fixing. A ceramic or metal pin 8 passes through opposed holes 9 in the walls of the generator body and through the lug 6. Ventilation slots 10 may be provided and the ends of the pin 8 may be concealed by a fireclay filling 11.
Patent GB-397017-A (GB)
Title: Improvements in or relating to fireboxes for locomotives and the like
IPC: F22B13/08
Filed: 1933-01-18
Abstract: The highly-heated part of a firebox and the less heated part are made of different suitably chosen alloys or of the same material differently heat treated to give the highly heated part a high resiliency and the less heated part a high ductility.  The parts may be made separately and secured together by welding or riveting.  A firebox may be made of an alloy consisting of 98 per cent of copper, 0,6-1,5 per cent of nickel, 0,7-0,4 per cent of silicon, and up to 1 per cent of iron, which is ductile when unhardened and highly resilient hardened even when heated. Other suitable alloys are those containing at least 95 per cent of copper and at least two of the following elements, iron, silicon, nickel, manganese, tin, chromium, beryllium, aluminium, and cobalt.  The entire firebox may be first hardened by heating, quenching, and reheating, and then the parts which are to be of high ductility heated to a red heat, or after heat and quenching only the parts which are to be of high resilience are subjected to a tempering heat.  Another method is to quench only the parts to be hardened, the other parts being cooled slowly.
Patent GB-637695-A (GB)
Title: Improvements relating to guards for presses and other like machines
IPC: F16P3/04
Filed: 1948-01-21
Abstract: 637,695. Machinery guards. UDAL, J. D. Jan. 21, 1948, No. 1812. [Class 80 (iv)] In a guard for a press or like machine having a main and normally stationary part c and a subsidiary movable part g which is associated with control means for preventing accidental starting and opening of the guard whilst the machine is in motion, the subsidiary guard g is connected through lever n and link m to a lever h carrying a roller k co-operating with a gapped member i on the driving shaft of the press, and coupled to a lever o controlling the press clutch. The pivotal connection between the link m and the lever h is arranged to be substantially co-incident with the pivot axis b of the main guard part c so that the latter can be adjusted to various positions without disturbing the adjustment of the control means associated with the subsidiary guard part.
Patent GB-284461-A (GB)
Title: Apparatus for supplying air under pressure
IPC: B60S5/04
Filed: 1927-01-21
Abstract: 284,461. Woodford, J. C. Jan. 21, 1927. Electrically-actuated valves.-Apparatus controlling a supply of air from a storage tank 1 of air under pressure to a receiver, such as a tyre 23, consists of a valve 4 urged in the closing direction by a spring 5 and fitted with a dashpot 29 having most effect on the valve when the latter is closing, the valve being opened by an electromagnet 9 controlled by a pneumatic device contained in a casing 14. The latter is connected to the piping 2 between the storage tank 1 and the tyre 23 by a pipe 32 having a restriction 31, and has a spring-pressed diaphragm 20 which can be set to the pressure required in the tyre 23 by a regulating and indicating device 33, 35, 36. A make-and-break device 12, 13 for the electrical circuit of the magnet 9 is made or broken according as to whether the air pressure in the casing 14 is less or greater than the pressure desired in the tyre 23 so that the valve 4 is operated intermittently to allow passage of air to the tyre 23 until the desired pressure is reached when the connection 12, 13, remains broken and air ceases to flow. After a valve 18 is closed or a switch 37 is opened, the tyre 23 may be disconnected from the piping. The restriction 31 delays the valve opening or closing action of the pneumatic device 14. Specification 261,579 is referred to.
Patent GB-910824-A (GB)
Title: Improvements in filling machinery
Inventor: BRIERLEY KENNETH
IPC: B65B1/44
Filed: 1959-01-19
Abstract: 910,824. Automatic quantity control systems. ARENCO-ALITE Ltd. March 14, 1960 [Jan. 19, 1959], No. 1855/59. Class 38 (4). In a system for automatically controlling the filling of a series of containers in succession, the quantity in a filled container controls a clutch in the drive means supplying material to the containers to determine the time of filling of succeeding containers. As shown, a container 26 is moved by an intermittently operating conveyer 27 to a position under a hopper 2 and operation of a timer 31 energizes a combined electric clutch and brake 21 for a predetermined time during which drive from a continuously operating electric motor 10 is transmitted to a screw 4 feeding material into the container. The material in the hopper is continuously agitated by arms 8, 9 driven through a worm 15 at low speed. The filled container is subsequently moved to a weigher 30 which, in response to over or under weight decreases or increases the period of timer 31. This correction may be proportional to the weight error or may only take place if the error exceeds predetermined limits in each sense. There are references to weighing only selected containers and, alternatively, sensing the quantity in the container by photoelectric or probe means.
Patent GB-283940-A (GB)
Title: Improvements in combined hot air and internal combustion engines
IPC: F02G3/02
Filed: 1928-01-20
Abstract: 283,940. Franchimont, E., and Cesar, V. Jan. 20, 1927, [Convention date]. No Patent granted (Sealing fee not paid). Heating charge.-A combined hot air and internal-combustion engine comprises two pistons 1, 2 on a single piston rod 4 which work in a partitioned cylinder to form three working chambers A, B, C, the first of which, A, serves as an internal-combustion engine cylinder and the other two, B, C as air compressing or hot-air engine cylinders utilizing the waste heat of the internalcombustion engine. In the form shown in Fig. 2, both cylinders B, C act in the same manner, either as compressor units or as hot-air engine units, depending on the position of a distributing valve 63 and of a slotted link 60 of a Hackworth link mechanism controlling a slide valve 54. When working as a compressor the chambers B, C draw air through a filter 50 and non-return valves 13 into a chamber 51 and then through a passage 52 into the cylinder partition 3 and past the slide valve 54, and discharge it past the slide valve 54 through a port in the distributing valve 63 and a non-return valve 15 into a tank 14 which is connected up with other cylinders. When the chambers B, C are working as hot-air engine cylinders, compressed air passes from the tank 14 and is heated first by scavenging gases delivered by a pipe 41 to a heating chamber 42<2>, and then by the exhaust gases of a combustion cylinder A. delivered bv a pipe 40 to a heating chamber 18, and may be finally heated by circulating round the combustion head; the hot air is then admitted to the cylinders B, C under the control of the slide valve 54 the distributing valve 63 and the Hackworth link mechanism having been moved over, and after expansion passes through the passage in the cylinder partition 3 and is used to scavenge and charge the combustion cylinder A, its admission thereto being controlled by a slide valve 61, also controlled from the Hackworth linkage 57. 60 by a connecting rod 62. Two fuel injection valves 69 are shown acting alternately: by cutting one valve out the engine may work as a four-stroke motor with twostroke scavenging. Control of the distributing and fuel injection valves, which latter are also connected with the Hackworth linkage, may be effected from a distance bv means of servo-motor systems 77, 79 to reverse the motion of the engine or the functioning of the air cylinders.
Patent GB-751615-A (GB)
Title: Improvements in control arrangements for electric motors
Inventor: SPENCE WILLIAM
IPC: H02P5/68
Filed: 1954-01-22
Abstract: 751,615. Exciting dynamo-electric machines. BRITISH THOMSON-HOUSTON CO., Ltd., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. March 24, 1955 [Jan. 22, 1954], No. 1989/54. Class 35. [Also in Group XXXVII] Direct-current motors, which may drive the top and bottom rollers of a hot rolling mill, have their armatures M1, M2 supplied in parallel from a common Ward-Leonard generator G the output of which is adapted for rapid reversal. The field winding sections F1A, F1B and F2A, F2B of the first and second motors and connected in a bridge circuit for energization by exciter E having a sub-exciter AS of the crossflux type. The latter machine has a main control field winding ASF and an opposing feedback winding ASB. An exciter A is connected in the bridge circuit across terminals a, b, which are equi-potential with regard to the current derived from the exciter E, a field winding AF of the exciter A being energized in accordance with the difference between the armature currents of the two motors. If, due to load unbalance, the armature current of the motor M1 increases, for example, then the field winding AF is energized and the output voltage of the machine A becomes such as to produce current in the field windings F1A, F1B, which is in the same direction as the main excitation current. The corresponding current in the field windings F2A, F2B opposes the main current, so that, whilst the field strength of the first motor is increased, the excitation of the second motor is reduced. By this means the required load balance is restored. The excitation of the machine A may be controlled by a magnetic amplifier having its input circuit connected for energization in accordance with the difference between the motor armature currents. An additional field winding AFC of the machine A is provided with an adjustable pre-set voltage from potentiometer P 1 whereby a predetermined speed difference between the two motors may be obtained on no-load. The potentiometer P1 is connected across resistors R1, R2 in the bridge circuit. In another arrangement, the motor field windings each comprise a single section connected in a bridge circuit with two exciters, Fig. 2 (not shown). The two exciters are adapted for simultaneous control and may be placed in adjacent or diagonally opposite arms of the bridge. As before, the machine A is connected across opposite points of the bridge which are at equal potentials unless the motors have their loads unbalanced. When it is desired to maintain a predetermined relation between the loads other than equality, the machine A is arranged to respond to departure of the motor currents from the corresponding ratio with respect to each other. Thus, the winding AF has its ends connected to two potentiometers connected respectively across commutating windings C1, C2 or equivalent resistive elements in series with the motor armatures, Fig. 3 (not shown). The potentiometers may be ganged to be moved in opposite directions.
Patent GB-138113-A (GB)
Title: Process of making aldehyde fatty acids and aldehydes from mineral oils and their distillates
IPC: C07C51/215
Filed: 1920-01-22
Abstract: 138,113. Byrnes, C. P., (Assignee of James, J. H.). Jan. 22, 1919, [Convention date]. Aldehyde-acids; aldehydes. - Aldehyde fatty acids are obtained by partial combustion of vapours of mineral oils (including crude petroleums and shale oils and their distillates, and oils from the low-temperature carbonization of coal or iignite) by means of air, oxygen, or oxygen containing gases, at temperatures below 500‹ C. At somewhat lower temperatures, aldehydes are ob, tained, particularly if the reaction mixture is diluted with steam. The best yields are obtained by passing the mixture of vapour and air through a catalytic screen; the mixture may be preheated to the required temperature, or the heat required may be supplied in part to the gas mixture and the ramaining heat supplied to the catalyst, e.g. by electric heating. A thin layer of highly active catalyst and a short time of contact of the gas mixture therewith are preferred. The best catalysts are complex metal oxides in which the acid radicals are the acid oxides of titanium, vanadium, chromium, manganese, zirconium, niobium, molybdenum, tantalum, tungsten, and uranium. while the basic radicals are the lower oxides of these metals or oxides of iron, copper, nickel, cobalt, or the rare-earth metals; examples are "blue" oxides of molybdenum, chromic chromate, tungsten tungstate, uranyl molybdate and molybdite, cobalt molybdate and molybdite, uranyl vanadate; they are used on an asbestos support. Using the apparatus shown, a chamber 5 heated by a burner 8 is supplied with liquid hydrocarbon from tank 6 by pipe 7, and with air from pipe 2, meter 3, and pipe 4. The reaction mixture passes through a catalytic screen 12, and the products pass through a water-cooled condenser 14 to a receptacle. 16; uncondensed vapours pass off by a pipe 19 which may be connected to a scrubber. The temperature near the catalyst is indicated by a pyrometer 22. The condenser 14 and receptacle 16 are preferably shielded from the heat of the furnace by an insulating-screen 21. Detailed examples of the procedure are given.
Patent GB-436703-A (GB)
Title: Improvements in or relating to the treatment of filaments, threads, foils, fabrics and the like of organic derivatives of cellulose
IPC: D06M13/02
Filed: 1935-01-22
Abstract: Textile materials, films or foils of organic derivatives of cellulose are treated with a composition comprising a water-insoluble lubricant and a phenol, particularly olive oil and cresylic acid.  Such material may be readily delustred by treatment with a hot aqueous delustring medium.  Yarns treated in accordance with the invention are easier to handle in subsequent operations, do not fluff, and have improved wetting out properties.  Suitable lubricants are vegetable oils, e.g. olive oil, tea-seed oil, castor oil, also petroleum jelly, animal fat, or waxes.  Suitable phenols are cresylic acid, xylenols, resorcinol and the like.  The dressing may be applied in concentrated form, or as a solution or emulsion, e.g. a mixture of the lubricant and phenol with a polyhydric alcohol such as glycol.  Yarns may be dressed in the course of their production, or during a subsequent winding operation, or whilst in hank or backage form, by dipping, spraying, contacting with rollers, &c. In an example, cellulose acetate yarn formed by dry spinning is drawn from the spinning cabinet and passes over a wick dipping in a mixture of 190 parts olive oil and 10 of cresylic acid, so that the yarn takes up 3 per cent of its weight of the composition. Yarn so treated may be evenly delustred by treating for 10--30 mins. in a boiling bath containing 5 gms. of soap per litre. Tetrahydronaphthalene, pine oil or like assistants may be used in the delustring bath.