baber/WOPTO huggingface dataset:
Patent GB-625344-A (GB)
Title: Projectile equipped with fins
IPC: F42B30/10
Filed: 1947-05-17
Abstract: 625,344. Ammunition. ETABLISSEMENTS E. BRANDT. May 17, 1947, No. 13337. Convention date, June 5, 1946. [Class 9 (i)] A projectile body 1 is attached to a cartridge holding tail 2 having fins 3 by a nipple 4, having two axially stepped cylindrical bearing surfaces, an annular housing in the projectile accommodating a deformable member 9 which is compressed by the nipple to form a fluid-tight joint. In addition the deformable member comprises a malleable metal. sheath containing a deformable material. The body 1 is made from a tube machined and shrunk to provide front and rear ogival portions and the tail is made from a drawn steel tube. The nipple is screw-threaded at each end to fit into tapped openings 6, 8 in the projectile and tail respectively. Two coaxial cylindrical recesses 10, 11, Fig. 2, accommodate cylindrical bearing surfaces 12, 13 on the connecting nipple. The larger recess 10 houses the member 9 which comprises a deformable annular metal sheath 20 having a circular slit 21 on one side and filled with a compressible material 22 such as cardboard. As the tail and connecting nipple are screwed into the body 1 the member 9 is deformed to the shape shown in Fig. 4. A circular groove 23 on the bearing surface 12 is provided to break up the jet of gases propagated towards the joint when the cartridge is fired. The nipple 4 is coated with varnish and a mass of pitch 24, Fig. 1, is placed in the rear of the projectile to increase the fluid-tightness. In a modification the nipple is integral with the tail, which is machined from a bar.
Patent GB-133445-A (GB)
IPC: B64C13/00
Abstract: 133,445. Power, R. F. Oct. 10, 1918. Steering and balancing.-A foot-operated control for the elevator, rudder, and ailerons of aircraft comprises a rudder-bar d mounted on a pivot e secured to a longitudinal rotary shaft b connected to the usual joy-stick a, a rotary cross-shaft f on the rudder-bar being fitted with footboards k and with an arm h entering a tube h<1> connected by a link i to the joystick. By rotation of the shaft f, the elevator is operated, and, by the rocking of the shaft b, the ailerons are actuated, these controls being effected either by foot or hand. The movement of the rudder-bar about the pivot e for actuating the rudder does not affect the joy-stick. The bar d may be omitted, and the shaft f be arranged to serve as the rudder-bar. Springs l restore the bar to normal position.
Patent GB-545143-A (GB)
Title: Improvements in roller boxes for turret machine tools
IPC: B23B29/26
Filed: 1941-10-20
Abstract: 545,143. Turning. SAUNDERS, A. Oct. 20, 1941, No. 13463. Addition to 545,040. [Class 83 (iii)] The combined tool and work rest according to the parent Specification has the steady rollers mounted on slides independently as well as concentrically adjustable to provide for setting to compensate for wear in the turret indexing mechanism or other cause of faulty alignment. The shank of the rest is made detachable from the body. The steady rollers K are mounted in screws L adjustable in slots in the slides 4 and clamped at 6. Springs 7 maintain contact of the rollers and work during adjustment. The guides for the slides 4 are formed by slots in the body in conjunction with cover plates. Recesses in the slides receive the ends 2 of the actuating levers, play being taken up, after concentric adjustment, by screws 0. The cone E is locked by grub screws 8 instead of by the means described in the parent Specification. The shank A is secured by screws in a counterbore in the part A<SP>3</SP> to provide for removal when the part A<SP>3</SP> is to be bolted hingedly to the turret. The swivel tool post provided is that forming the subject-matter of Specification 545,568.
Patent GB-1535542-A (GB)
Title: Apparatus for successively processing continuous textile fabric
IPC: D06B3/26
Filed: 1976-04-02
Abstract: 1535542 Wet treatment of textiles TOYO BOSEKI KK 2 April 1976 13472/76 Heading D1L Textile fabric is continuously wet processed by repeated passage through a treatment tank followed by squeezing, the fabric being moved alternately forwardly and backwardly such that the forward movement exceeds the backward movement. As shown in Figs. 1 and 2 the fabric 2 is fed in loops spirally through a treatment tank 3' and around a reversibly drivable roll assembly disposed thereabove. The roll assembly comprises a pair of squeeze rolls 7', 7" and a pair of guide rolls 13, 13'. The withdrawing guide roll rotates 1.03-1.15 times faster than that of the squeeze rolls 7, the input guide roll being made to idle. Treatment liq. is also discharged from hollow guide rings 15a-15h and 16a-16h upstream of the squeeze rolls 7. The length of each fabric loop may be corrected by severing the continuous length of fabric and inserting a length of material [Fig. 5 (not shown) ] of the correct loop length, having detectable portions (41), (41') at each end, into the fabric length to form an endless loop. Detectors, either mounted above each loop or in pairs (47), (47') [Figs. 7 and 8 (not shown)], above adjacent loops on a carriage (50) movable across the loops, are provided to sense the position of the portions (40), (40'). Rotatable hooks (55'), (55") [see Fig. 7 (not shown)] operate as illustrated in Fig. 9 (not shown) to remove part of the fabric loop from contact with guide rolls 13, 13' so that rotation of the roll assembly in the appropriate direction causes an increase or decrease in the loop length.
Patent GB-135307-A (GB)
IPC: F02B75/16
Abstract: 135,307. Whaley, R. S. Nov. 23, 1918. Dynamos, arrangement of.- In an engine in which the crankshaft and piston are removed through an opening in the crank casing, a platform i for a magneto is formed on a cover plate a which is removed prior to dismounting or inspecting the crank-shaft and piston.
Patent GB-635913-A (GB)
Title: Improvements in or relating to the production of synthesis gas mixtures containing carbon monoxide and hydrogen
IPC: C10J3/46
Filed: 1947-05-20
Abstract: 635,913. Oil gas ; water gas generation. STANDARD OIL DEVELOPMENT CO. May 20, 1947, No. 13595. Convention date, Sept. 27, 1946. [Classes 55 (i) and 55 (ii)] Gas mixtures containing mainly hydrogen and carbon monoxide are produced by charging liquified bituminous carbonaceous material into a fluidized bed of refractory material into which oxygen and steam are also introduced, the gaseous products being discharged into an upper part of the reaction zone to which further oxygen is supplied. A dense suspension of powdered refractory material, e.g. silica, alumina or magnesia is maintained in a fluidized state in a reaction chamber 1 by an oxygen-steam mixture admitted through a line 3 and a heavy oil tar or pitch, such as a vacuum distillation residue of the bottoms of a Venezuelan crude, heated to 200- 450‹ F. is sprayed with steam through a nozzle 7 within or above the dense phase. Carbon dioxide may be added with the steam. Partial combustion occurs at 1,500-2,000‹ F. and preferably 115-300 lb. per sq. in. pressure. Secondary oxygen supplied through a line 10 effects oxidation of lighter hydrocarbons and soot in a zone extending to the top of an enlargement la of the chamber, at temperatures up to 3,000‹ F. The ,gases pass through a waste heat boiler 17 and dust separator 22 to hydrocarbon synthesis apparatus. Refractory material is desirably supplied continuously from a hopper 40 and removed by a pipe 45 in order to remove salts and other metallic compounds present in the pitch. Gas and steam may be injected through pipes 43, 44. The Specification as open to inspection under Sect. 91 describes the use of low grade coals, shales and less readily liquifiable material such as asphalt which may be ground and mixed with the refractory material. This may be dispensed with in the case of high ash containing fuels. This subject-matter does not appear in the Specification as accepted.
Patent GB-831481-A (GB)
Title: Improvements in or relating to adhesive tape dispensing and sealing devices
Inventor: LANCASTER HUBERT LESLIE
IPC: B65B67/06
Filed: 1956-05-02
Abstract: 831,481. Packaging-machines. PAYNE & SONS Ltd., P. P. May 1, 1957 [May 2, 1956], No. 13609/56. Class 94(1). A device for securing a strip of adhesive tape about-such articles as the twisted necks of bags comprises a frame having side plates supporting the roll of adhesive tape 7, a length of the tape extending across opposed jaws 21, 35 pivoted on either side of a gap in the plates, the article being pressed against the tape and carried with it between the jaws which wrap the tape about the article during its passage down the gap. One jaw 21 has a seating 34 into which the article and tape are pressed, the jaws being connected by linkage 29, 38 to be rotated simultaneously by downward pressure. An adjustable member 26 pulls a fresh length of tape off the roll as the jaw 21 rotates. A knife 40 and co-operating gap 41 cut the tape above the article which is then withdrawn sideways. A blade (not shown) is positioned adjacent the cutter, the end of the tape adhering to it for stretching of the tape across the gap when the jaws return to their initial position. A spring member 15 presses the tape against a roller 13, the member 15 being displaceable to permit initial positioning of the tape. The jaws are faced with resilient strips 24, 39. Other embodiments differing in detail only from that shown are described. The jaws may be connected by toothed sectors. A knife may be mounted adjacent the gap for trimming the free end of a bag neck.
Patent GB-781765-A (GB)
Title: Process for the manufacture of alkylene oxide condensation products
IPC: C07B61/00
Filed: 1954-05-10
Abstract: Alkylene oxide condensation products are prepared by reaction of alkylene oxides in the vaporized state with organic or inorganic compounds containing at least one reactive hydrogen atom and in the form of a finely-divided liquid or solution in a circulatory apparatus in which the liquid reaction mixture is continuously withdrawn and recycled to the reactor, the alkylene oxide being evaporated outside the reaction zone and then introduced into the reaction zone in the form of vapour under substantially atmospheric pressure for reaction with the finely-divided second reagent. Specified reagents are carboxylic acids, amides, amines, mercaptans, hydroxy-compounds and sodium bisulphite, and ethylene, propylene and butylene oxides, preferably used without a diluent.  Temperatures of 50-200 DEG  C. are suitable and catalysts may be present.  Suitable apparatus is described.  Examples illustrate the reaction of octyl phenol with about 8 mols. of ethylene oxide, castor oil with about 15 mols. of ethylene oxide and aqueous sodium bisulphite with about one mol. of ethylene oxide.  Specification 683,884 is referred to.ALSO:Alkylene oxide condensation products are prepared by reaction of alkylene oxides in a vaporized state with organic or inorganic compounds containing at least one active hydrogen atom and in the form of a finely divided liquid or of a finely divided solution in a circulatory apparatus in which the liquid reaction mixture is continuously withdrawn and recycled to the reactor, the alkylene oxide being evaporated outside the reaction zone and then continuously introduced into the reaction zone in the form of vapour under substantially atmospheric pressure for reaction with the finely divided droplets of the second reagent.  Specified reagents are ethylene, propylene and butylene oxides, which are preferably used without a diluent, and carboxylic acids, amides, amines, mercaptans, hydroxy-compounds including alkyl-phenols and sodium bisulphite. Reaction temperatures of 50-200 DEG  C. are suitable.  Catalysts may be present.  According to examples using illustrated apparatus (not shown) : (1) octyl-phenol containing added sodium as catalyst is heated in a vented cylindrical reactor to 150 DEG  C. and the liquid phenol is continuously cycled by a pump from the base of the reactor to a centrifugal nozzle at the top; liquid ethylene oxide is fed to an evaporator and the vaporized oxide is then passed continuously into the top of the reactor at atmospheric pressure at a rate such that substantially no ethylene oxide gas escapes from the reactor vent; about 8 mols. of ethylene oxide are combined with 1 mol. of phenol; in like manner (2) castor oil is reacted with about 15 molar proportions of ethylene oxide; and (3) sodium bisulphite in aqueous solution with about one molar proportion of ethylene oxide. Specification 683,884 is referred to.
Patent GB-787888-A (GB)
Title: Improvements in or relating to preparation of durene
IPC: C07C5/27
Filed: 1956-05-03
Abstract: <PICT:0787888/IV (b)/1> Durene is obtained from isodurene, prehnitene, or mixtures thereof with durene wherein the durene content is less than the equilibrium amount, by (1) isomerizing under substantially anhydrous conditions with liquid hydrogen fluoride in an amount between 3 and 50 moles./mole. tetramethylbenzene and boron trifluoride in an amount between 0.03 and 0.3 moles./mole. tetramethylbenzene at between 20 DEG  and 165 DEG  C. until equilibrium is attained, (2) adding boron trifluoride to increase the amount present to about 1 mole./mole. isodurene present, (3) separating the hydrocarbon phase from the acid phase and (4) separating pure durene from the hydrocarbon phase.  In step (1) preferably between 6 and 12 moles. of hydrogen fluoride and 0.05 and 0.15 mole. of boron trifluoride per mole. of tetramethylbenzene are employed, and at a temperature from 40 DEG  to 100 DEG  C. equilibrium is reached in between 30 minutes and 6 hours.  In step (3) carried out at 20-40 DEG  C., an inert liquid diluent such as hexane is added, in which case it is separated from the durene in step (4), as is any prehnitene present, by distillation.  In a preferred embodiment, hydrocarbon feed, anhydrous hydrogen fluoride and boron trifluoride are mixed in vessel 14 and the mixture fed by line 23 to the stirred reactor 24.  Thence it passes to the mixer 32 which may be cooled or heated and where more boron trifluoride is added by line 36 and/or line 37.  The mixture passes by line 39 to the extractor 41 to which hexane is supplied by line 46.  The hydrocarbon phase passes overhead by line 48 to the vessel 51 where hexane is distilled off and recycled by line 44.  Durene, possibly mixed with prehnitene emerges by line 53 and may be treated to remove traces of catalyst and fractionally distilled to separate from prehnitene.  The acid layer from the extractor may be recycled wholly or in part by line 57 or passed wholly or in part to the decomposer 59 where isodurene is separated by distillation and removed by line 67 or recycled by line 68. Hydrogen fluoride and boron trifluoride pass by line 62 to the separator 63 where partial separation by distillation occurs, boron trifluoride being passed by line 36 to the mixer 32 and the remaining mixture being recycled by line 64 to the vessel 14.
Patent GB-803727-A (GB)
Title: A process and bath for descaling metals
Inventor: CARTER GILES FREDERICK
IPC: C23G1/28
Filed: 1957-04-30
Abstract: A descaling bath for removing oxide scale from the surface of metals consists of a molten alkali metal hydroxide, 0.3-20 per cent by weight of an alkali metal hydride and 0.2-10 per cent by weight of iron, preferably dissolved as one of its oxidic compounds such as FeO, Fe2O3, Fe3O4 or NaFeO2.  Up to 50 per cent by weight of the alkali metal hydroxide may be replaced by an alkali metal carbonate, chloride or other inert alkali metal salt, and up to 10 per cent by weight of an alkali metal oxide may also be present to aid dissolution of the iron.  The process, which is particularly suitable for descaling ferrous metal articles, is carried out by immersing the article in the bath at a temperature below the melting point of the article, and preferably between 325 and 500 DEG C., for 0.5 to 30 minutes and then quenching in water.  Specification 557,530 is referred to.
Patent GB-552039-A (GB)
Title: Improvements relating to frequency modulation
IPC: H03K3/08
Filed: 1941-10-29
Abstract: 552,039. Frequency modulation. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Oct. 29, 1941, No. 13943. Convention date, Oct. 30, 1940. [Class 40 (v)] Oscillations generated in a multivibrator circuit are modulated in frequency by applying the signal symmetrically to vary the resistance or the voltages in the circuit. As shown in Fig. 1, the grid resistances R1, R2 of the pair of reciprocallycoupled values V1, V2 are partially shunted by a duplex valve 30 the grids of which are coupled to the signal source 37. The anodes of the valves V1, V2 are connected through resistances 14, 18 to the split primary coil of a transformer 20 bv which the modulated oscillations are transferred to the aerial through amplifiers, limiters, and frequency multipliers. The valve or valves 30 may be associated with the anode resistances instead of the grid resistances, Fig. 2 (not shown); The transformer 20 may be flatly tuned, and signal voltages may be applied to screen grids in the valves V1, V2, Fig. 3 (not shown). In Fig. 5 the signal from the source 37 is applied between the cathodes and ground, the screen grids and the control grids are reciprocally coupled to give the multivibrator action and the anodes are connected to opposite sides of a tuned circuit L1 which is coupled to the load circuit. A second tuned circuit with its mid-point earthed may be connected between the lower ends of the grid resistances R1, R2, Fig. 7 (not shown). The signal may be applied in one phase to the screen grids and in the opposite phase to the anodes by means of a tapped transformer 38, Fig. 6, with the object of balancing out amplitude modulation.
Patent GB-380104-A (GB)
Title: Improvements in or relating to beacon lights
IPC: B64F1/20
Filed: 1931-05-11
Abstract: 380,104. Beacon lights. WEULE, W., Goslar, Harz, Germany. May 11, 1931, No. 13953. Convention date, May 15, 1930. [Classes 75 (ii) and 75 (iv).] Lenses ; reflectors.-A beacon light adapted to project light in various directions and at various angles of elevation particularly for aerial navigation, comprises a Fresnel lens or reflector formed from a normal basic contour by rotation about an inclined axis passing through the focus, or by movement along a helice the axis of which passes through the focus, such lens or reflector being rotated about a vertical axis. In the form shown in Fig. 2, the lens is formed by rotating a normal basic contour about an axis (I)-(I) inclined at an angle alpha to the vertical axis I-I about which the lens rotates, the source of light being situated at the focus d. In the form shown in Fig. 4, an ordinary Fresnel lens is tilted at an angle a and the source of light is situated at a point d<1> below the focus d. In the form shown in Fig. 5, the lens is formed by moving a normal basic contour along a helice the pitch 2x of which is such that some of the light is again projected upwardly at an angle alpha to the horizontal. Figs. 6, 7, and 8 show reflectors formed from a parabolic basic contour in a similar manner to the lenses shown in Figs. 2, 4, and 5 respectively. Each lens or reflector may be divided radially into two or more sections, some or all of which may be reassembled in different relative positions to obtain different characteristics of the projected light.
Patent GB-613548-A (GB)
Title: Improvements in or relating to the removal of ultimate moisture from powdered products
IPC: F26B11/04
Filed: 1946-05-09
Abstract: 613,548. Drying powdered material. BORDEN CO. May 9, 1946, No. 14014. Convention date, June 2, 1945. [Class 34(ii)] A powdered product is dried by continuously passing it through a heated vacuum chamber, and admitting air in small amounts at spaced points in the 'chamber to facilitate the transport of the powder therethrough. In the embodiment, powdered food is led into a vacuum drying tube 2 through an inlet valve 1, and heated therein by a heated water jacket 3. Valves 4, 5 and 6 admit small amounts of air which agitate and assist the travel of the powder through the tube. The powder then passes to a holder and cooler 7, provided with a cold water jacket 11, and containing a rotary agitator 8 driven by a motor 9. Finally it is discharged to a receiver 13. The vacuum is maintained by a condenser and vacuum pump, not shown, connected to a conduit 14, the withdrawn air and moisture passing through a filter 16.
Patent GB-866382-A (GB)
Title: Improvements in and relating to the electrolytic shaping of bodies
IPC: C25F3/12
Filed: 1958-05-02
Abstract: 866,382. Etching transistor materials electrolytically. PHILCO CORPORATION. May 2, 1958 [May 2, 1957], No. 14060/58. Class 41. In a process for removing material from the body of a semi-conductor by a jet of electrolyte, the jet is given a positive potential relative to the semi-conductor under treatment. The electrolyte used is preferably an acid, e.g. normal HC1, H 2 SO 4 , or HF containing NaF, but caustic potash or ammonium chloride may be used. A germanium crystal wafer 10, Fig. 1, is submitted to a fine jet of an electrolyte issuing upwards from an orifice 44 to which it is supplied under pressure by a pump 36. Above the wafer is mounted a jet 20 to which air or nitrogen is supplied, to keep the upper surface of the wafer free from electrolyte. Suction tubes 28, 30 create a zone of reduced pressure in the area of the jet. The wafer is soldered to a base tab 32 connected to the negative pole of a source of potential 56 of about 500 V., and an inert electrode 62 is mounted in the stream of electrolyte is connected to the positive pole through a variable resistor 60. The depth of the etched pit is observed by an infra-red detector 26 which receives rays from a source 24 passing through the jet of electrolyte and wafer. Preferably the infra-red ray is pulsated by a light chopper 46. A high current density of 100 to 100 A. square inch is applied which forms a pit of steep sides and flat bottom. A pulsating voltage may be used. In a modification, two jets are used one on each side of the wafer, which may also be of arsenic or antimony. Specifications 805,292, 817,958, 824,484 and 834,821 are referred to.
Patent GB-1223815-A (GB)
Title: Loose leaf binder structure for caldendar desk diary use
IPC: B42D5/04
Filed: 1969-03-18
Abstract: 1,223,815. Filing papers. NATIONAL BLANK BOOK CO. Inc. 18 March, 1969 [18 March, 1968], No. 14076/69. Heading B6E. [Also in Division A4] A loose-leaf binder for use as a desk diary is convertible from an easel stand form as shown into a carrying case form (Fig. 3, not shown). The binder comprises a support panel 2 bearing transversely arranged central filing rings 4, an end panel 12 hinged to one longitudinal edge thereof, and a cover panel 16 hinged to the end panel 12. A further end panel 28 is hinged to the opposite end of the panel 2, and a closure panel 30 is hinged to the end panel 28. In the easel configuration shown, snap-fastener elements on the panels 28, 16 are engaged. In the carrying case configuration, the panel 16 is folded over to overlie the panel 2 and a snapfastener element on the closure panel 30 engages that on the cover panel 16. A further strip 20, hinged to the panel 16, acts to retain a pencil in the easel configuration and to assist closure in the carrying case configuration. A filing ring is employed to support the snap fasteners during closure in the carrying case configuration.