baber/WOPTO huggingface dataset:
Patent GB-744696-A (GB)
Title: Improvements in or relating to a door latch
IPC: E05B65/00
Filed: 1953-07-29
Abstract: 744,696. Latch fastenings. HOUDAILLEHERSHEY CORPORATION. July 29, 1953 [Jan. 13, 1953], No. 21022/53. Class 44. A door latch, particularly for a refrigerator door 12, Fig. 1, includes a rotary latch bolt 13 adapted to co-operate with a keeper 11, a pivotally and bodily movable dog 47 having slidable engagement with the latch bolt 13 on the opposite side of its pivot 15 from the keeper, and biasing the latch bolt to rotate in a keeper-engaging direction, and a release lever 22 for retracting the dog 47 to release the bolt 13 for door opening movement. The release lever 22 is pivotally mounted on a pivot pin 23 extending between two latch plates 19, and is biased in a counterclockwise direction by a spring 33. The lever 22 is connected to the dog 47 by a pin 48 which is slidable along slots 49 in the plates 19. A slotted portion 50 of the dog 47 engages a fixed guide pin 51 mounted between the plates 19. On rotating a handle 27 about its pivot 31 an extension 30 of the handle rotates the release lever 22 from the full line to the broken line position thereby withdrawing the dog 47 from the dotted line to the broken line position. Fig. 4 shows a modification in which the handle 83 may be mounted to swing about any one of three different axes (see Fig. 6, not shown). Thus a plate 86 secured to the door has three angularly disposed pairs of parallel lugs 91, 92, 93 drilled to receive a pivot pin 95 for the handle. In its released position a spring 85 holds a recessed position 82 of the handle against a cylindrical wall 88 of the plate 86. The handle is adjustably connected by means of a link 79 to a release lever 73 pivoted at 74. One end of the link 79 carries lock nuts 84 and the other end passes through an ear 77 on the lever 73 and is connected to a member 80 which abuts against the ear 77. The release lever 73 is pivotally connected to a dog 65 by a pin 66 which is free to slide in slots 67 in two parallel spaced latch plates (as 62). A fixed pin 70 engages a slot 69 in the dog 65 and a spring 71 acting on the release lever biases the dog into engagement with a rotary latch bolt 60 pivoted at 63.
Patent GB-1056803-A (GB)
Title: Preparation of catalysts
Inventor: COOKE CLIFTON WASHINGTON
IPC: F01N13/02
Filed: 1965-05-18
Abstract: Manganese carbonate or sulphide is reacted with CrO3 in the presence of water to yield a mangano - chromia - manganite of formula XCr2On.2YMnOm in which the ratio Y : X is from 3: 0.5 to 3: 30, n is 2, 3 or 6 and m is 1, 1.33, 1.5, 2 or 2.5. In an example, aqueous CrO3 and MnCo3 are mixed until CO2 evolution is complete, the mixture is agitated, dried at 120-150 DEG  C. for 16 hours, calcined at 400 DEG  C. for 3 hours, pulverized, graphited and pilled.  Reference has been directed by the Comptroller to Specification 1,013,188.ALSO:Manganese carbonate or sulphide is reacted with Cr03 in the presence of water to yield a mangano-chromia-manganite of formula XCr20n.2YMn0m in which the ratio Y:X is from 3:0.5 to 3.30, n is 2, 3 or 6 and m is 1, 1.33, 1.5, 2 or 2.5. Additionally the catalyst may contain Cu, Ni, Zn, Fe, Cd, Co, Sn or Bi as carbonate sulphide on oxide.  The catalysts may be supported on Al203, Ti02, Th02, Ce02, Cr203, Mg0, Ca0, Ba0, Sr0, Zn0, Mn02, Si02, Be0, Zr02, La02 and Hf02.  These may be incorporated during manufacture by addition as naturally occurring minerals, clays or spinels.  The catalyst may have a surface area of at least 80m2/gm. and at least 60% of the pores below 200 .  Reference has been directed by the Comptroller to Specification 1,013,188.
Patent GB-186223-A (GB)
Title: A process for the treatment of phosphorus compounds suitable for manurial purposes
IPC: C05B11/16
Filed: 1921-08-09
Abstract: Phosphoric compounds suitable for manurial purposes such as naturally-occurring phosphates bone meal, and phosphoric slags are converted into a form soluble in citric acid and partly soluble in citrates by intimate grinding with about one to one and a half parts of a suitable salt of the alkali or alkaline-earth metals, ammonium, or magnesium.  Double salts of the alkali metals and magnesium may also be used.  The sulphates, chlorides, silicates and nitrates of these metals are mentioned as suitable salts, and either the artificially-prepared compounds or the naturally-occurring varieties such as kainite, schoenite, kieserite, and carnallite may be employed.  The process is stated to be of particular value in the treatment of Florida phosphates.  Reference has been directed by the Comptroller to Specifications 6429/06 and 151,024, [both in Class 111, Sewage &c.].
Patent GB-1045875-A (GB)
Title: Improvements in or relating to electrical loading indication means
Inventor: WHITEHEAD JOHN
IPC: H01H85/30
Filed: 1962-06-01
Abstract: 1,045,875. Electrically released switches; fusible cut-outs. ELECTRO MECHANICAL MANUFACTURING CO. Ltd. May 22, 1963 [June 1, 1962], No. 21192/62. Headings H2B and H2G. [Also in Division G1] A handle 1 carrying a link or fuse 6 between contacts 2, 3, has a member 19 which is normally held in a non-indicating position, as shown, by a bimetallic strip 11 connected to contact 2, the arrangement being such that electrical overload in the circuit which is insufficient to blow the link or fuse 6 but is above a predetermined value is indicated by strip 11 flexing and releasing member 19 which thereupon falls, or is spring- pressed, to an indicating position. The operative end of member 19 may be coloured or otherwise readily visible or may close an electrical circuit to give a visible indication. The member 19 may be held by two strips 11, 12, so that changes in ambient temperature cause it to be displaced laterally and not released or the strip 11 may be so constructed as to provide ambient temperature compensation.
Patent GB-205604-A (GB)
Title: An improved settee adapted to be converted into a bedstead
IPC: A47C17/18
Filed: 1922-08-03
Abstract: 205,604. Cowley, J. O. Aug. 3, 1922. Bedsteads convertible into seats; adjustments. -In a settee of the type having a seat with a hinged back supported between a pair of double end frames which are capable of being opened to support the back when lowered to the horizontal plane, the back is adjustably connected to the end frames by a pivoted slotted bar at each end, and a triangular sliding seat may be mounted at either or both ends of the main seat. The seat 1 is composed of a pair of longitudinal rails with one or more transverse stays 2, and to its back edge is hinged the back 3 which is normally in a vertical position being detachably connected to the end frames 5 by pivoted arms 3<a> having a number of slots to engage pins 3<b> on the said frames. When arranged at right angles to the fixed part a, the moving part b of the end frame can support a triangular sliding seat 7, normally housed beneath the main seat, while in the full open position, as in Fig. 2, the back is supported by abutments 8 on the moving parts b of the end frames, these abutments being slotted to engage the aforementioned pivoted arms 3a.
Patent GB-966322-A (GB)
Title: Improvements in or relating to the anchoring or securing of bolts and the like in, for example, bore holes
Inventor: WALBRIDGE PERCIVAL NORMAN
IPC: E21D20/02
Filed: 1961-06-13
Abstract: 966,322. Holding tools. ROTOLIFT MANUFACTURING CO. Ltd. June 12, 1962 [June 13, 1961], No. 21238/61. Heading B4W. [Also in Division F2] A tool for inserting a resilient nozzle-like gate member AG into a bore hole comprises two telescoping tubes B, C, the inner tube C being adapted to carry at its forward end the resilient gate member AG. The member AG is formed from a strip A having resilient tongues G projecting from one edge, the strip being formed into cylindrical shape by wrapping it around the tube inner B which has been temporarily removed from the outer tube C. The wrapped strip is introduced into either end of the outer tube C and the inner tube is withdrawn from the strip, reversed and inserted into the end of the tube C remote from the nozzle, the forward end of the inner tube being pushed to release the strip, the inner tube is pushed through and beyond the wrapped strip AG. further forward so that a flange D on the inner tube B acts on the lower edge of the strip and discharges it from the outer tube C. Specification 797,106 is referred to.
Patent GB-963770-A (GB)
Title: Improvements in or relating to articulated light-screening panels
IPC: E06B3/48
Filed: 1962-06-01
Abstract: 963,770. Screening devices. IONLITE Ltd. June 1, 1962 [Sept. 28, 1961], No. 21282/62. Heading F4R. [Also in Division E1] An articulated lightscreening device comprises transparent, translucent or opaque extruded plastics slats a, each with one clawlike edge, c, e, f, and one hooked edge i.
Patent GB-711118-A (GB)
Title: Improvements relating to suction cleaners
IPC: A47L9/10
Filed: 1952-08-26
Abstract: 711,118. Suction cleaner filter bags. HOOVER, Ltd. Aug. 26, 1952 [Sept. 1, 1951], No. 21444/52. Class 8 (2). A suction cleaner includes a filter magazine containing a strip of bags 31, Fig. 1, connected together on a continuous length, each bag being adapted to be brought successively into an operative position to receive dirt-laden air. The strip is formed from a length 30, Fig. 5, of porous paper having a central longitudinal cement band 34 and a plurality of spaced lateral cement bands 33 adjacent perforations 35. The length 30 is then folded longitudinally to provide re-entrant pleats 32, Fig. 6, and after drying the cement, the strip of bags 31 so formed is rolled about a spindle 24 and inserted into the magazine; the free end bag 31 projecting through a slot 21 of the magazine and also through a slot 15 of a cage 10 which supports the bag in the operative position. To this end the open neck of the bag 31 is clamped against a gasket 13 by a conical member 41 of a closure cap 40. To discard a full bag and bring a fresh one into position the cleaner casing 1 is stood on its exhaust end cap 3, the cap 40 removed and the full bag withdrawn from the cage 10 until the perforated mouth portion of the next bag reaches the open end of the cleaner when the old bag is torn off and disposed of. In a modification the strip is formed to give bags of circular instead of rectangular cross-section,. and the cage is replaced by a bag supporting tray.
Patent GB-634572-A (GB)
Title: Cinematograph continuous film-feed projector
IPC: G03B41/08
Filed: 1946-07-19
Abstract: 634,572. Kinematograph continuous-feed projectors. EHRENHAFT, F. F. July 19, 1946, No. 21603. Convention date, July 20, 1945. [Class 97 (i)] In a kinematograph continuous-feed projector which includes a rotary polygonal compensating prism and a film sprocket coaxial therewith, reflecting means, e.g., a step prism, are disposed in the light path between the film gate through which the film is moved continuously and the compensating prism to direct the light from the film through said compensating prism, an optical magnifier, e.g., a positive spherical lens, is movable in the light path between the light source and the compensating prism, the pitch distance between consecutive sprocket teeth is constant and is proportional to the pitch distance between consecutive perforations in the film when it has shrunk by about 0.5 per cent of its original length and the distance between diametrically opposite faces of the compensating prism is constant and is proportional to the height of the frames of the film when it has shrunk by about 0.2 per cent of its original length. The projector shown comprises a polygonal prism 16 mounted coaxially with a film sprocket 15 on a shaft 17 rotatably journalled in a wall 32 which also carries the shaft 21 of another film sprocket 20 which is rotated continuously to move the film through the gate 12 by an electric motor (not shown) through gearing 22. Prism 16 is thus rotated by the pull of the film on the sprocket 15. Between the gate 12 and the prism 16 is disposed a step prism 23 which directs the light from the film, which is illuminated by a lamp and condenser arrangement 10, 28, on to the prism 16 through which it passes to a projection lens 27. Between the gate 12 and the prism 23 is mounted a positive spherical lens 38, the mount 40 of which is slidable axially in brackets on wall 32 under manual control. A rotary member 29 having portions of different translucency is disposed in the light path between the condenser 28 and the gate 12 and is rotated in synchronism with the prism 16 through a shaft 35 and bevel-gearing 33, 34.
Patent GB-740726-A (GB)
Title: Improvements in or relating to pipe joints for deep well drill stems
IPC: F16L15/04
Filed: 1953-08-05
Abstract: 740,726. Pipe joints. SCHOELLERBLECKMANN STAHLWERKE AKT.-GES. Aug. 5, 1953 [Sept. 23, 1952], No. 21635/53. Class 99(1). In a joint for deep well drill stems in which the drill pipe 5 is screwed to the coupling member 1, such as by a tapered spigot 8 on the pipe end engaging in a socket 2 of the member 1, and in which the pipe and coupling member have interengaging, unthreaded sealing surfaces such as the overlapping cylindrical surfaces 4, 7, the latter are forced together by hot working, e.g. pressing, forging, rolling, or drawing, after the parts have been screwed together.
Patent GB-710054-A (GB)
Title: Improvements in and relating to laundry drying machines
IPC: D06F58/22
Filed: 1952-08-28
Abstract: 710,054. Drying clothes. GENERAL ELECTRIC CO. Aug. 28, 1952 [Aug. 29, 1951], No. 21645/52. Class 34(2) In a method of drying clothes in a machine having a perforated basket 6 rotatably supported in a casing 5 a mixture of humid air and lint after passing through the perforations of the basket is collected in a channel 34 at the bottom of the casing, then sucked through a fan 42 to a flow or spray of cold water and intermingled with the cold water is discharged as waste. The casing 5 has a longitudinal slot 33 and the channel 34 secured to the casing has a closed end 35 and a removable cover 36 at its other end. The fan 42 has its intake communicating with the channel 33 and its discharge outlet 45 coupled by a flexible hose 44 to an aspirator 46 into which is discharged cold water from a faucet 49. Lint is swept from the casing 5 by brushes 58 housed within the cavities provided by tumbling ribs 16 and falls into channel 34 whence it passes with the air stream through fan 42 into tube 44. The humid air is cooled by the cold water spray in the aspirator and the condensed moisture and entrained lint pass into tub 51, the lint being retained by a strainer 53. The brushes act as pump vanes to drive air entering by louvres 24, 23 and passing over heater 20 into the basket and to drive. moist air into the channel 34 which channel has an outwardly directed flange 37 in contact with the casing throughout its length and an inwardly directed flange 38 which is fluted to provide small inflow passages 40 through which air may flow from the drier cabinet 1. The aspirator may be directly connected to operate continuousuly or it may be controlled by a solenoid operated valve to operate at some particular point of the drier operation.
Patent GB-597711-A (GB)
Title: Manufacture of insecticidal compositions
Filed: 1945-08-24
Abstract: An insecticidal composition is obtained by dissolving p-dichlorbenzene or nitrobenzene in warm hydrated chloral in the weight proportions 60 : 40, thereby to obtain a crystalline insecticide on cooling the solution.  The hydrated chloral preferably contains chloral and water in the weight ratio 10 : 1. Water may be added towards the end of the crystallization period, the excess after removal of the crystals serving as a toxic spray. Before crystallization is complete the mother liquor may be stirred into an aqueous paste of magnesium or calcium hydroxide. According to a modification, powdered p-dichlorbenzene is added to chloral and the resulting cool product is passed through the jacket of a mixer and then into the mixer where the water is added, the resulting rise in temperature being controlled by the cooling effect in the jacket. The product may be refined by fractional distillation, the more volatile fractions being the most potent.  The products may be used as a solution in benzene or carbon tetrachloride, as a powder formed by impregnating dust such as china clay, by sublimation, or as an aqueous or other dispersion.  Volatile fractions may be used as a vapour.  The products may be added to distempers, polishes, linoleum, rubber in various stages of manufacture or used to impregnate any material. Specifications 547,874 and 576,231 are referred to.
Patent GB-206593-A (GB)
Title: Improvements in or relating to steam superheaters
IPC: F22G1/00
Filed: 1922-08-09
Abstract: 206,593. South Metropolitan Gas Co., Chandler, D., and Cooke, J. J. Aug. 9, 1922. Superheating-chambers heated by combustion gases.-An apparatus for superheating steam for use in connection with laundry calenders &c. comprises a casing 4 enclosing a staam box arranged above a burner 7 and having a spiral passage for the steam. As shown, the passage is formed by a coiled strip 3 welded between the top and bottom plates 1, 2 of the box, and the steam is delivered thereto through a tangentiallydisposed inlet and exhausted from the centre through a pipe 8 passing through the outlet flue 9. The lower part of the casing 4 may be open as shown, or it may be filled in with a plate having perforations for the admission of secondary air. The casing may be lined with uralite, asbestos or other non-conducting material, and may have ribs or fins formed on its inner surface.
Patent GB-1034900-A (GB)
Title: Roll film photographic printing apparatus
Inventor: ZEIBIG SIEGFRIED
IPC: G03B27/58
Filed: 1964-05-27
Abstract: 1,034,900. Photographic printing apparatus. VEB PENTACON DRESDEN KAMERA-UND KINOWERKE. May 27, 1964, No. 21897/64. Heading G2A. A role film photographic printing apparatus comprises two daylight cassettes 2, 3 attachable to the casing of the printing secting, the feed cassette 2 containing a guide roller 13 adjacent in paper outlet slot 8 and co-operating with a sprung pressure roller 25, the roller 13 being connected to a handle 30 outside the cassette, a paper guide device within the printing section adjacent a paper admission plot 7 and a paper transport drum 16 arranged to pass paper strip 11 from the guide device to an exposure platform 18. The paper guide device comprises a closed passage 27 which extends from the admission slot 7 to a guide roller 15 and then continues as a guide plate 28 to the transport drum 16. The strip 11 is guided from a role 12 in the feed cassette 2 between the rollers 13,25, and through the slots 8 and 7. A light-proof connection between each cassette and the casing of the printing section is formed by a rubber covering 9 disposed around the slot 7 and interlocking with a collar 10 disposed around the slot 8. When the paper strip 11 has passed from the exposure platform 18 it is guided by roller 21,22 through a slot 7<SP>1</SP>, and thence to the take-up cassette 3.
Patent GB-1151732-A (GB)
Title: Steam boiler or water heater.
Inventor: MARUYAMA NOBORU
IPC: F22B13/00
Filed: 1966-05-17
Abstract: 1,151,732. Vertical boilers; hot water boilers. N. MARUYAMA. 17 May, 1966, No. 21918/66. Heading F4A. A steam boiler or water heater comprises an outer water containing shell 1 and an inner water containing body 6 in the shape of a cylinder or truncated cone, spaced therefrom to define a gas pass 5, 5<SP>1</SP>. Combustion gases from a combustion chamber 11 flow through this pass on their way to flue outlet 8, thereby heating the inner body 6 from both sides to promote rapid heating. The inner body and outer shell are eccentrically arranged. To increase the degree of heat transfer, the metallic walls forming the outer shell and the inner body may be corrugated. Alternatively the inner body or inner wall 4 of the outer shell may be formed from a helically coiled tube.
Patent GB-1311753-A (GB)
Title: Dobby
IPC: D03C1/26
Filed: 1970-05-06
Abstract: 1311753 Hattersley dobbies STAUBLI & CO Gebr 6 May 1970 [6 May 1969] 21930/70 Heading DIE In a Hattersley dobby, rotary support blades 11 and 11' having contact surfaces 12', 14' including an angle greater than 90‹ are provided, which are rotated downwardly when the corresponding end of the baulk is against its stop 8 or 8', to engage with corresponding contact surfaces 13, 14 on the hook and hold the end of the baulk against the stop.
Patent GB-1475547-A (GB)
Title: Apparatus for controlling toner concentration of a developer in electrostatic development
IPC: G03G15/08
Filed: 1974-05-17
Abstract: 1475547 Automatic control of concentration KONISHIROKU PHOTO INDUSTRY CO Ltd 17 May 1974 [25 May 1973] 21976/74 Heading G3R In apparatus for controlling the concentration of toner particles in a developer used in electrophotographic copying equipment, toner particles from the developer are attached to a rotatable probe 32 by virtue of induced image force, and means are provided which measure the amount of toner attached to the probe and control means for replenishing the toner in the developer. As shown, developer D is urged by a rotating magnetic brush 23 past a drum 1, carrying an electrostatic image, and also past probe 32 which is preferably of conductive glass with a coating of tin oxide, aluminium copper, brass or iron. The probe surface may be covered by a thin protective insulating layer. The probe picks up toner particles from a cloud thereof formed in a space 50 by the relative rotation of probe 32 and developer D'. The amount of toner attached is measured photoelectrically, either by transmission, by means of lamp 33 and detector 34, or by reflection; alternatively the amount of electrical charge of the deposited toner may be measured. The photoelectric detector output, is fed to a circuit Fig. 5, (not shown) which operates a replenishing toner container 4.
Patent GB-685794-A (GB)
Title: Improvements in method of securing needles in needle carriers
IPC: F23C99/00
Filed: 1950-09-06
Abstract: 685,794. Regulators for burners. HOLM, C. B. Sept. 6, 1950, No. 21978/50. Class 75(i) [Also in Groups XXII and XXV] Valve needles 5, 6 are secured in axial holes 2 in a carrier 1 that may be as shown in Specification 516,635. The needle wires are driven into the holes 2 that lead tangentially into a transverse hole 4, so that the wires bend as shown at 7, 8, and are secured either by driving in a conical ended pin 9, or by casting in molten metal such as solder or pewter. The needles 5, 6 may be the opposite ends of a single wire.
Patent GB-479425-A (GB)
Title: Improvements in and relating to remote control mechanism operating hydraulically
IPC: E05F15/02
Filed: 1936-08-04
Abstract: 479,425. Hydraulic apparatus. SHORROCK, C., SHORROCK, N., and SHORROCK, E. Aug. 4, 1936, No. 21982/35. [Class 69 (ii)] [Also in Groups X and XXV] In remote-control mechanism for doors, windows, &c., a casing is divided by a partition 12, Figs. 1 and 2, into a reservoir 13 and a pressure compartment 14. A pump 15 associated with the partition delivers past a non- return valve 17 to the compartment 14, a valve 18 may be opened by a lever 23 and rod 20 to permit liquid to return from the compartment 14 to the reservoir, and a safety valve 19 may be provided. The operated member 70, Fig. 3, is normally held by a bolt 71 retracted by a toggle 67 when a piston 63 is actuated. The pipe line 30 may contain locally or throughout its length a liquid differing from that used elsewhere, the liquids being separated by a floating piston.