baber/WOPTO huggingface dataset:
Patent GB-752607-A (GB)
Title: Charging means for pneumatic conveying systems
IPC: B65G53/46
Filed: 1954-08-05
Abstract: 752,607. Pneumatic conveyers. BRIEDEN, K. W., KUHME, E., [trading as MASCHINENFABRIK K. BRIEDEN & CO., KOMM.-GES.], and OELLRICH, A., [trading as MASCHINENFABRIK UND EISENGIESSEREI A. BEIEN]. Aug. 5, 1954 [Dec. 29, 1953], No. 22729/54. Class 78 (1). A charging device for a conveyer comprises a cellular wheel 18 which rotates about a vertical pillar 13 and is formed as a double cone having a conical outer surface at its upper portion and an inverted conical surface at its lower portion. A lower end closure plate 11 in the shape of an inverted cone is integral with the base plate 10 and hub 12 which support the pillar 13. A similar conical plate 14 is slidably mounted on the upper end of the pillar and can be moved downwards by turning a hand wheel 17. Bearing plates 21, 24 are inserted between the wheel and the closure plates. A charging hopper 22 and a compressed air supply pipe 25 are connected to openings in the plate 14 which register with corresponding openings in the plate 24. A discharge duct 23 is in communication with openings in the plates 11, 21. A gear 26 fixed to the wheel is driven through a gear 27 by a motor. The pipe 25 is connected to a supply pipe 31 by a regulating valve 32 and to a nozzle 34 in the conveying conduit 35 by a pipe 38, automatic control valve 33 and a pipe 39. When the valve 32 is closed, a spring 37 maintains the piston 36 of the valve 33 in position to block communication between the pipes 38, 39, but when the valve 32 is opened, the air pressure in the pipe 25 forces the piston to the left thereby bringing a groove 40 into position to connect the pipes 38, 39. A part of the air supplied by the pipe 31 then passes into the nozzle 34 and leakage from the rotary part of the apparatus is reduced. In a modification the wheel is supported by pneumatic pressure.
Patent GB-989583-A (GB)
Title: Method and apparatus for separating the components of a fluid mixture
IPC: C12H6/04
Filed: 1963-06-07
Abstract: 989,583. Concentrating solutions by freezing. PHILLIPS PETROLEUM CO. June 7, 1963 [June 28, 1962], No. 22749/63. Heading F4H. In a process in which a slurry of crystals and mother liquor is passed successively through a filtering zone, a reflux zone and a melt zone, a portion of the melt being withdrawn as a product stream and the remainder being passed countercurrently to the crystals in the reflux zone, a first series of pressure pulses is applied to said zones and a second series of pulses to the stream of mother liquor withdrawn from the filtering zone. As shown, liquid supplied through a line 13 is cooled in a jacketed chiller 14 having a scraper 21 to form a slurry of crystals and mother liquor which then passes to a purification column 24. The latter comprises a filtering zone 25 from which mother liquor is withdrawn through a line 31, a reflux zone 26 and a melt zone 27 including a heater 32. A product stream is withdrawn through a line 33 to which pressure pulses are applied from a pulse unit 44, the line 33 containing a check valve 51 to prevent back flow of product into the column. A second pulse unit 34 is provided to transmit pressure pulses to the mother liquor line 31, which contains a check valve 52, the pulse units 34 and 44 being operated with a phase difference of 180 degrees. Valves 51 and 52 may be replaced by solenoid valves which are cyclically opened and closed in synchronism with the respective pulse unit. In modifications, the pulse unit 44 may be connected directly to the melt zone and may be replaced or supplemented by a further pulse unit which is connected to a point upstream of the filtering zone 25, e.g. to feed conduit 13 or to chiller section 14. The heater 32 may comprise an electric heater or a fluid heat transfer coil and may be replaced by a jacket through which fluid is circulated. Direct heat exchange between the liquid in the chiller section and a refrigerant, e.g. butane, may be employed and warm butane may be used to melt the crystals in the melt zone by direct contact. The process may be used to obtain fresh water from sea water, to concentrate orange juice, vegetable juices, beer or milk, or to separate para-xylene from a mixture thereof with other xylene isomers and ethyl benzene. An example is given of the flow rates concentrations and temperatures occurring when the process is used to concentrate a mixture of methanol and water. Specification 807,100 is referred to.
Patent GB-639153-A (GB)
Title: Improvements in surgical footwear
IPC: A61F3/00
Filed: 1947-08-16
Abstract: 639,153. Extension leg boots. GUEST, J. Aug. 16, 1947, No. 22805. [Class 17 (ii)] The lower or body portion 10 of a surgical leg extension boot has a metallic hinged joint 18 disposed between sections 16, 17 and under the position occupied by the ball or equivalent part of the wearer's foot. Sprung means 23 restore the parts to original relative positions after each bending movement, such spring being embedded in recesses on the underside of the body portion 10 of the boot. The invention may be applied to various systems of surgical footwear.
Patent GB-1508027-A (GB)
Title: Process for producing a photodiode sensitive to infrared radiation
IPC: H01L21/38
Filed: 1975-05-23
Abstract: 1508027 Photo diodes SOC ANON DE TELECOMMUNICATIONS 23 May 1975 [6 Aug 1974] 22853/75 Heading H1K An IR-sensitive photo diode is produced by depositing, on a semiconductor substrate 1, a thin layer 1alpha of semiconductor material similar or identical to that of the substrate 1, depositing a dielectric layer 2 on the thin layer 1alpha, heating the device to cause diffusion between the layer 1alpha and 1, and producing a diffusion zone 3 to form photodiode PN junctions. The semiconductor materials of the substrate 1 and the layer 1alpha may be HgCdTe and CdTe respectively and the device may be provided with Au or Cr contacts 4. The diffused layer 1alpha has physical characteristics intermediate those of the substrate 1 and the dielectric layer 2 so as to provide a better physical match between them.
Patent GB-155891-A (GB)
Title: Improvements in apparatus for scoring, punching, and cutting paper, cardboard, and the like
IPC: B26D9/00
Filed: 1919-09-17
Abstract: 155,891. Rose, W., and Rose Bros. (Gainsborough), Ltd. Sept. 17, 1919. Scoring.-In appara. tus for scoring, cutting out and severing paper, cardboard, &c. blanks for packeting or box making, the dies and cutter are so mounted that they may be easily removed when worn, reground and accurately replaced. An intermittent movement is imparted to the operating and roller feed devices by Geneva stop mechanism. The feed rolls 1, 2 are carried by shafts 3, 4 connected by gearing the shaft 4 being adjustably mounted in eccentric bearings 6 rocked by screws 13. Secured to one end of the shaft 3 is a Geneva wheel 19 intermittently rotated when slots 20 therein are engaged by a roller 26 carried by an arm 24 on the main shaft 22, a locking disc 30 serving to engage the parts 21 of the wheel 19 when the roller 26 is not in driving engagement therewith. Ridges 31 are provided in the roller 2, in co-operation with grooves 32 in the roller 3, to crease the blanks along the lines 84, Fig. 20. Sliding in guides in the sides of the framing is a cuttercarrying frame 33 reciprocated by eccentrics 38, Fig. 4, carried on the main shaft 22 and connected by lugs 39 to a spindle 40 passing through the frame 33. Carried by the frame are cutters 37, Figs. 5 and 7 formed with lower concave faces 37<a> and adapted to cut out parts 86, Fig. 20, from the blanks. Co-operating with the cutters are die pieces 44, 44a, Figs. 4 and 10, which are supported on the inclined faces of a removable block 45 by means of tongues 47 engaging grooves in the block, screws 46 passing through slots therein serving to hold the die pieces in position. This arrangement allows the die pieces to be removed when worn, secured in similarly grooved and inclined jigs so that the operative faces may be regrooved, and accurately readjusted in position. Transverse creases 85 in the blanks are formed by ridges 82 on the block 45, similarly shaped grooves 79 being provided in a block 80, Figs. 5 and 7, carried by the frame 33.
Patent GB-306366-A (GB)
Title: Improvements in staple strips for stapling machines
IPC: B25C5/16
Filed: 1928-08-08
Abstract: 306,366. Crofoot, J. B. Aug. 8, 1928. Strips of staples.-A strip for a stapling machine has the final staple mutilated and provided with means engaged by the feed mechanism whereby the mutilated staple is automatically ejected. The strip, Fig. 3, is formed with perforations 20 engaged by the feed pawl and perforations 21 engaged by the non-return pawl; the final mutilated staple 19 is ejected by the feed pawl on its forward movement engaging shoulders 19<1> thereon.
Patent GB-829381-A (GB)
Title: Wrapping machines
IPC: B65B41/18
Filed: 1957-07-19
Abstract: 829,381. Wrapping machines. PACKAGE MACHINERY CO. July 19, 1957 [Oct. 1, 1956], No. 22956/57. Class 94(1). In a machine in which the leading end of a continuous web is wrapped around an article and the web severed, the cutting means is controlled by indicia on the web, whereby printed matter on the web is always arranged in a desired position on the article irrespective of variations in girth between successive articles. The machine described, which is a modification of the type forming the subject matter of Specification 566,702, receives articles such as loaves B from a conveyer 24, each article being pushed by an arm 26 from the con-  veyer along a platform 130 and against the free end of the web W. The article is forced with the web against a backing plate 30 which recedes as the article is pushed onto an elevator 28. The article is raised by the elevator, pivoting about a shaft 122, to a discharge position 34, the web being guided round it and drawn from supply by a roller 36 on arms 104, and then being severed by a cutter 37. The article is pushed up the discharge ramp for completion of the wrapping. The web passes along a platform 20 beneath photo-electric  scanning means 39 which, when an indicium on the web passes beneath it, operates a solenoid S to displace a stop 60 allowing linkage 62, 64, 70, 72, 74, 76 to be moved by a spring 66 whereby the cutter 37 severs the web. At the same time, linkage 78, 80, 82, 84 causes a brake 85 to be applied to the web. Operation of the linkages is limited to a portion only of the machine cycle by a cam 94 on which runs a follower 96 on an arm 68 fast with the member 70. The spring 66 can only move the member 70 when the dip in the cam coincides with the follower 96. A dashpot 97 prevents violent movement of the follower towards the cam. If an indicium does not appear beneath the scanning means during a cycle, a finger 98 trips the stop 60 once every rotation of the cam to activate the cutting and braking means. The positioning of the printed matter on the article is assisted by the web end extending at an inclination above the platform 130. An article of greater height tends to engage the web at a higher level and thus pull the free end up to to greater extent before article and web are pushed onto the elevator 28.
Patent GB-669969-A (GB)
Title: An improved manufacture of snapper members in electric snap action switches
IPC: H01H1/02
Filed: 1950-09-20
Abstract: 669,969. Switch contacts; snap-action arrangements. YOUNG, S.G. Sept. 20, 1950. No. 23092/50. Class 38 (v). The snapper member 16 of a snap-action electric switch, is made of spring steel with a thin layer of copper or silver or both, so that the conductance is substantially improved without appreciably impairing the springy quality. The layers may be applied by electrodeposition, by spraying or by soldering. The member 16 which is fixed to a base at 14 carries a contact 17 and is operated by a dolly or slidable operating member arranged between tongues 20, 22.
Patent GB-1174068-A (GB)
Title: Furnace Top Charging Equipment
IPC: C21B7/18
Filed: 1967-05-18
Abstract: 1,174,068. Charging blast furnaces. ISHIKAWAJIMA-HARIMA JUKOGYO K.K. 18 May, 1967 [8 Nov., 1966], No. 23172/67. Heading F4B. Blast furnace top charging equipment, includes two raw materials storage hoppers 6, 7 into which charging material is alternately fed through bifurcated shoot 3 from conveyer 1 in dependence upon changeover dampers 2. Whilst B side hopper 7, is being filled with its gate 9 and lower gas seal valve 11 closed, and its upper gas seal valve 5 and exhaust valves 28 in exhaust line 17 to atmosphere open, the A side hopper 6, which has its upper gas seal valve 4 and exhaust valves 27 closed, and is maintained at furnace top pressure through connection 19<SP>1</SP>, the equalizer valves 24 being open; discharges material into bell hopper 14 through revolving shoot 13. When the hopper 6 is completely discharged, its gate valve 8, lower gas seal valve 10, and furnace top pressure equalizer valves 24 close, and its exhaust valves 27 and upper gas seal valve 4 open and it is then recharged from conveyer 1 whilst hopper 7 discharges its contents into bell hopper 14 through revolving shoot 13. The pressure in hopper 7 is brought up to the furnace top pressure in two stages, prior to the material discharge, after its exhaust valves 28 and upper gas seal valve 5 have been closed, firstly by gas admitted through line 18 and valves 21, 23, and then with gas admitted through line 19<SP>11</SP> and valves 25. The bell hopper 14 then continues to be charged alternately from hoppers 6 and 7. After receiving a charge from both hoppers 6 and 7, bell hopper 14 discharges into the furnace during the period of changeover, whilst the lower gas seals 10, 11 of both raw material hoppers 6, 7 are still closed. During the discharge period of bell hopper 14, equalizer valves 26 in line 19, which normally maintain the bell hopper 14 at the furnace top pressure, are closed. It is stated to be known, Fig. 1, to feed material from a conveyer a by a bifurcated shoot b simultaneously into twin hoppers c having closed gates d and gas seal valves e, and then with the conveyer a stopped, to open the valves e and gates d to simultaneously discharge both hoppers e through revolving shoot g into small bell hopper h connected to atmosphere through open exhaust line l. After discharge, the gates d and valves e are closed, exhaust valves t in line l are closed, and small bell hopper h brought up to furnace top pressure in two stages, firstly with gas from line m with valves p and g opened, and then with gas through line n with valves r opened. Whilst hoppers c are being refilled, small bell valve i is opened to charge large bell hopper j, which is maintained at furnace top pressure through line n, valve s being opened. After every two charges from small bell hopper h, just prior to the next charge, large bell valve k is opened to discharge bell hopper j into the furnace. During this period the furnace top pressure equalizing valves s in the line n are closed.
Patent GB-460508-A (GB)
Title: Improvements in maskings for projection screens
IPC: G03B21/13
Filed: 1936-08-24
Abstract: 460,508. Projection screens. HARPER, M. Aug. 24, 1936, No. 23197. [Class 97 (i)] A masking is located in a plane in front of a projection screen, is illuminated so as to throw light towards the spectators, and has means to shield the visible area of the screen from light from the masking ; the light thrown may be of a neutral or grey tone. The Figure shows the margin of a projection screen E, a reflector A forming a mask, and one of a series of lamps B which are shielded from the spectators and illuminate the reflector surface C. The surface C may be grey, the lamps being clear, or the lamps may be tinted. A clear or mat glass D may exclude dust from the reflector. Specification 417,873 is referred to.
Patent GB-518824-A (GB)
Title: Improvements in or relating to impulse generators and to thermionic tubes for use therein
IPC: G01S7/282
Filed: 1938-08-06
Abstract: 518,824. Thermionic valves. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Aug. 6, 1938, No. 23292. Convention date, Sept. 30, 1937. [Classes 39 (i) and 40 (v)] [Also in Group XXXVI] In a thermionic valve for use in an impulse generator circuit the cathode is made very large in relation to the anode and size of envelope and as compared with usual practice, and very high voltage is applied to the anode ; in an echo sounding system the valve is working for only a short-say 2 per cent.-of the time during which signals are being sent, so that with its attached ribs the anode has time to cool from its high, temporary overload. In one system two such valves 51 are in push-pull with the anodes 59 connected to a resonant line 61 with adjustable bridge 63 and coupled to a transmission line 67 with dipole antenna 69: the grids 57 are connected via line 55 bridge 53 and resistance 47 to a peak current generator 43, the other side of which is connected to the oversized cathodes 49. Specification 512,084 is referred to.
Patent GB-350800-A (GB)
Title: A bracelet adjustable in size
IPC: A44C5/22
Filed: 1930-08-05
Abstract: 350,800. Bracelets &c. BURKHARDT, E., 2, Luisenplatz, Pforzheim, Germany. Aug. 5, 1930, No. 23405. [Class 43.] A bracelet, adapted to be adjusted by a loop or overlapping parts, is provided with a fastening which consists of a transverse sleeve f carrying two hooks i, n, of which at least one is slidable against the action of a spring g, so that the hooks may be engaged in an aperture c of the bracelet. The hooks i, n are open towards the ends of the sleeve f and, as shown, the hook n is fixed whereas the hook i projects through a slot m and is mounted on a sliding element h fitted with a knob k. Alternatively, both hooks may be movable and may have the spring g situated between them. As shown, the bracelet is of the roller-link type and consists of two bands I, II each provided with a hinge d for attaching to a watch, the band I carrying a loop e through which the other band II is passed before fastening. The fastening may, however, be applied to other types of bracelets having transverse slots or depressions.
Patent GB-840763-A (GB)
Title: Improvements in light sensitive targets
Inventor: WARDLEY JOHN
IPC: H01J29/45
Filed: 1955-08-17
Abstract: 840,763. Television pick up tubes. ELECTRIC & MUSICAL INDUSTRIES Ltd. July 25, 1956 [Aug. 17, 1955], No. 23648/55. Class 39(1). A light sensitive target for a pick up tube comprises an array of conductive strips 10, 14 associated with insulation 12, 13 and disposed between two layers 8, 16 of semi-conductive material so that the strips 10, 14 contact the two layers 8, 16 alternately and the layers contacting one another between the elements, the layer 16 being photoconductive and more photoconductive than layer 8. The strips 10, 14 are connected in two sets at potentials of +V and -V respectively. The tube may be of the videcon type. One layer, preferably the semi-conductive layer 8, is self supporting such as a stretched blown glass layer, and may be photo-conductive if screened from the image light, but preferably is not photoconductive. The insulation 12, 13 between signal strips 10, 14 and alternately different layers 8, 16 is LiF or SiO 2  evaporated on through a stencil and the photoconductive layer 16 is Cd, S or Se with a dark resistance of about 10<SP>-5</SP> ohm-cm deposited by evaporation after the target is mounted and the tube degassed. The device is equivalent to a plurality of potentiometer bridge circuits which are balanced in the dark, each elementary circuit comprising the resistances R1, R 2  of the portions of layers 16, 8 in the direct electrical path between two adjacent signal elements 10, 14 shunted respectively by the capacities C1, C2 of the two layers 16, 8. When a light image is projected on to the photoconductive layer 16 the bridge circuits are unbalanced to different degrees (due to the decrease in resistance of 16) charge leaks across the layer 8 by capacitance and changes the potential of the elementary areas of the surface scanned by the electron beam from datum (c.p.s.) to varying positive values so generating a signal which is taken off from elements 14. The target can be used in monochrome or colour cameras (in the latter case a plurality of filters are provided between the light source and the target.)
Patent GB-206126-A (GB)
Title: Improvements in telephone receivers
IPC: H04R11/00
Filed: 1923-09-25
Abstract: 206,126. Pridham, E. S. Oct. 25, 1922, [Convention date]. Magnetic instruments.-In a telephone receiver employing a vibrating armature 13 connected to a diaphragm 11 by a rod 12, the pole-pieces at opposite sides of one end of the armature are of opposite polarity, the U-shaped pole-pieces 17, 18 being crossed as shown for that purpose. The result is that the armature 13, the ends of which at any instant have opposite polarity due to telephone currents in coils 14, has a rectilineal movement. Each end of the armature is mounted between two spring metal strips, which prevent it sticking to the pole-pieces.
Patent GB-207861-A (GB)
Title: Improvements relating to fire extinguishing apparatus
IPC: A62C13/00
Filed: 1922-09-05
Abstract: 207,861. Minimax, Ltd., and Gregory, G. A. Sept. 5, 1922. Extincteurs or chemical fire-extinguishers. - The inner container of a hand fire extinguisher for the production of foam or gas on inversion is provided with a closure which maintains it in position within the outer container and comprises a. frame g<1> bearing against the inner surface of the closing cap e and attached to the ring g retaining the glass closing disc d<2>, adapted to be broken by the plunger f. A cage c<1> prevents lateral movement and a seating may be provided for the bottom of the inner container. A handle b<1> is provided for holding when inverted. Rubber packing e<1> may be provided inside the closure of the outer container. When used for foam production a solution of sodium bicarbonate and powdered quilla bark are placed in the outer container and aluminium sulphate solution in the inner container.
Patent GB-1008056-A (GB)
Title: Apparatus for crimping filaments or yarns
IPC: D02G1/12
Filed: 1964-06-10
Abstract: An elongated tube constitutes a crimping chamber into and from the bottom and top of which filaments or yarns are fed by rolls against the back pressure of the mass of previously crimped filaments &c. and the crimped material is withdrawn by a winder separately driven from the rolls.  The tube has an elongated slot in the zone of the mass, and an adjustable mechanical feeler carrying a mercury switch and extending through the slot to rest on top of the mass, Fig. 1 (not shown) or an adjustably mounted photo-electric cell on to which a light source projects a beam of light through the slot, Fig. 4 (not shown) responds to the level of the mass of crimped filaments &c. to control the drive to either the rolls or the winder so as to maintain the mass at a constant level.  The crimped filaments &c. between tube and winder pass through a slub-catcher and a tension gate adjustably mounted on the tube.
Patent GB-947453-A (GB)
Title: Improvements in and relating to cooling beds for rolling mills, and more particularly for medium-sized mills, comprising two finishing trains
IPC: B21B43/00
Filed: 1962-06-22
Abstract: 947,453. Rolling. SCHLOEMANN A.G. June 22, 1962 [July 18, 1961], No. 24065/62. Heading B3M. Apparatus for cooling rolled stock issuing from the two finishing trains of a rolling mill comprises roller tables 1d and 2d each associated with a finishing train, cooling beds 3 and 4 beside the roller tables, and an intermediate bed 5 between the tables. Figs. 5 and 6 show different sections on roller table 2d and indicate how rolled bars 10a and 10b can be lifted from the table rollers 2 or 2a by transversely shaping slides 2c, 2e and 6b to an appropriate cooling bed. The rollers of roller tables 1d and 2d and of run-out tables 7 and 8 are shown in plan in Fig. 1, in addition to the work-shifting slides 1c, 6a, le of table 1d and the slides 2c, 6b and 2e of table 2a.