baber/WOPTO huggingface dataset:
Patent GB-1421465-A (GB)
Title: Photographic developing apparatus
IPC: G03D3/00
Filed: 1973-01-18
Abstract: 1421465 Photographic development W MERZ 18 Jan 1973 [21 Jan 1972] 2698/73 Heading G2X A photographic developing apparatus comprises a developing tank which is rotatable or rockable about a substantially horizontal longitudinal axis and a device for increasing the atmospheric humidity in the developing tank. As shown the rotatable or rockable tank 11 is mounted in a chamber 10 on a rocker 15 and is thus also rockable about an axis 16 in order to agitate the developer and also to cause it to flow to an outlet trough 18. In the lower portion 10a of the chamber there is the humidifier in the form of one or more tubes 20 having fine holes 21 through which water is sprayed. A humidity meter may be provided to indicate the humidity, and optionally adjust it by controlling the flow of water.
Patent GB-432784-A (GB)
Title: Improvements in dry cleaning or laundering apparatus
IPC: D06F21/10
Filed: 1935-01-28
Abstract: <PICT:0432784/III/1> In a dry - cleaning or laundering apparatus consisting of a clothes basket 4, rotating in an outer shell 1 containing a bath of solvent 2 into which the basket is dipped by tilting and then removed therefrom to extract the solvent, the bath is constructed to accommodate closely the basket, whereby the volume of solvent required is reduced.  The bath is provided with two oppositely mounted buttresses 5, 6 of horseshoe and segmental shape, the opposing faces of which are outwardly inclined from one another forming a trough into which the basket is tilted and is partially immersed.  The basket is supported on a short hollow shaft which may be tilted and rotated and is mounted on the buttress 5.  An annular ring 15 prevents the upward splashing of the solvent.  In operation, clothes are introduced into the basket 4 through a door 20 mounted on the domed top 19 of the container and solvent is admitted.  The basket is tilted and rotated slowly in the bath of solvent, and then restored to a vertical position and rotated rapidly to extract the solvent from the clothes.  The solvent may be regenerated by distillation.
Patent GB-1448429-A (GB)
Title: Process for preparing sintered tetrafluoroethylene polymer  particles
IPC: C08J3/12
Filed: 1975-01-22
Abstract: 1448429 Sintering PTFE MITSUI FLUOROCHEMICALS CO Ltd 22 Jan 1975 [22 Jan 1974 28 March 1974] 2853/75 Heading C3P Particles of polymers or copolymers of tetrafluoroethylene are sintered by mixing the particles with a stream of inert gas, passing through an atomizer, heating to a temperature above the melting point of the polymer to effect sintering, and cooling and recovering the particles. The gas used is preferably air and heating is effected by introducing hot air into the mixture.
Patent GB-767717-A (GB)
Title: Improvements in or relating to a venetian blind
IPC: E06B9/303
Filed: 1953-10-22
Abstract: 767,717. Venetian blinds. THYSELL, H. B. Oct. 22, 1953 [Oct. 23, 1952], No. 29201/53. Class 20(3) The slats 14 are carried by ladder tapes 7 supported on the curved surfaces of drum-like members 6 which are mounted in the head rail 1 on shaft 3, the shaft 3 being turned one way or the other, to alter the slat inclina-  tion, according to the direction of movement of a slider 18 along the shaft. Preferably, the shaft 3 is formed is an Archimedian screw and the slider 18 as a nut therefore. The slider is moved by pulling one or other of the cords 23, 24 and the blind is raised by pulling on both cords together. The cords 23, 24 extend towards each other, over pulleys 20, 19 respectively, and back again so that they emerge, in the case of cord 24 after reversal over pulley 21, at one end of the head rail 1. Pulleys 19, 20 may be replaced by a single pulley having two grooves for cords 23, 24. Pulleys 22 are preferably pivoted between arms 15, 16 on transverse supports 13, 5. Shaft 3 terminates in supports 5 and is connected to drums 6 by arms 8 and sleeves 9. Similarly arms 11 connect drums 6 to axle journals 12 in supports 13.
Patent GB-181048-A (GB)
Title: Improvements in guards or fenders for certain kinds of machines
IPC: F16P1/02
Filed: 1921-01-24
Abstract: 181,048. Smitheman, E. Jan. 24, 1921. Guards: guards, controlling. - In guards for stamps, power presses, capstan lathes, milling and slotting machines, &c., of the type comprising two or more mutually-inclined and simultaneously-operable sections of collapsable lazy-tongs construction, the corresponding bars of adjacent sections are pivoted in mutually-inclined jaws formed in blocks slidable on a post, by means of which blocks the guard-sections are actuated. In a guard for a power press, Fig. 1, blocks 16, 4 are slidable, respectively on a moving post 14, guided on bars 9, 17, and a stationary post 1, so mounted in a socket 18 that the guard can be turned out of the way or entirely removed when desired. The blocks, as shown in Fig. 7, have jaws 4a, 3a disposed at right-angles to receive the metal or other bars 7 of the front section and those of the rearwardly-extending side sections (not shown). The lowest corner block 3 or any other block is fixed. The moving side section may be of triangular shape to clear the tool &c. A screwed spindle 1a may be provided for adjusting the guard vertically. One or more of the lower joints 11 may be pivoted to a bush 13 sliding on the guide-bar 9, and similar supporting-means may be provided for the side sections. The guard may run on duplicate parallel guide-bars, any part thereof may be covered with flexible material to intercept metal chips &c., and the leading edge may be padded. The guard may be arranged to expand from back to front, from top to bottom, or vice versa. The frames may be opened and closed by horizontal or vertical movement Applied to any of them or to the sliding blocks, as by a rod 37, Fig. 1, and two links 34 butt-hinged together and connected to two of the blocks 4, 16, these links serving also to limit the extension. The guard may be actuated by links &c. from the ram, cam, camslide, or ether moving-part of the press etc.; by a hand or foot lever so mounted on the starting- lever that it must be moved to actuate the guard before it moves the starting-lever; or by an independent lever. In the form shown in Fig. 6, a rack 21 carried bv the ram 19 meshes with a quadrant 22 on a slotted lever 24 engaging a pin 26 on the bottom block 16. The guard is fully extended before the ram finishes its descent, and in order that the quadrant shall not move out of reach of the rack, the end teeth 27 are pivoted and pressed against stops 31 by spr,ings 28, so that they are turned aside without moving the lever 24, but immediately come into the path of the rack on its return. As applied to a milling-machine, the guard comprises downwardly-inclined front and back sections pivoted to blocks on an horizontal pillar mounted parallel to and above the cutter-spindle, and adapted to expand to the right or left into the protective position, preferably, before the machine starts.
Patent GB-1329945-A (GB)
Title: Separating force applying means for shears presses or the like
IPC: F16H21/44
Filed: 1972-01-21
Abstract: 1329945 Toggle linkages VERINIGTE OSTERREICHISCHE EISENUND STAHLWERKE AG 21 Jan 1972 [26 Feb 1971] 2933/72 Heading F2K A shear or press toggle mechanism for forcing apart two abutments 1, 2 comprises a number of adjacently engaging rollers 3 to 6 interconnected by two pairs of straps 9, 10, the outer end rollers 3, 4 being rigidly fixed to the two abutments 1, 2 and the centre roller 5 being movable by a connecting rod 8, of a crankshaft 7, whereby during operation of the toggle linkage the intermediate rollers 6 roll without sliding on their adjacent rollers 3, 4, 5 to obviate friction losses. As shown, the connecting rod 8 is rotatably connected to the shaft of the centre roller 5 and forms a plain bearing 11 for the roller 5 such that the centre roller 5 does not rotate during operation of the linkage. In Figs. 2 and 3 (not shown) the shafts of adjacent rollers are connected by individual pairs of straps (12) and the connecting rod 8 is rigidly connected to the centre roller 5 which thus rotates in unison therewith, gear discs (13) being mounted on the end faces of the rollers and having pitch circle diameters equal to the roller diameters such that the gear discs (13) synchronize the rotational movements of the rollers and prevent slip therebetween.
Patent GB-313184-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J61/20
Filed: 1928-01-30
Abstract: 313,184. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Jan. 30, 1928. Low-pressure metallic-vapour apparatus. -In discharge tubes emitting ultra - violet rays and having a gaseous filling containing mercury vapour, so small a quantity of mercury is intro. duced into the tube that the mercury which, during the operation of the tube, might condense on the wall 1 portion designed to transmit the ultraviolet rays is so minute that the transmissibility for the rays is not affected. In the form shown, a tube suitable for treating substances with ultra-violet light consists of a glass envelope 1 carrying an incandescent cathode 2, anodes 5, 6 inserted through side tubes 7, 8 and an auxiliary electrode 4 for starting the discharge. Inserted in the envelope 1 is a quartz or like tube 11 closed at one end and having a side extension at the other, a tube 13, open at both ends, being sealed in at the upper end. The substance to be irradiated can be supplied by the tube 13 and be carried off again through the tube 11 and its lateral extension 12. The gas filling may be argon and the small amount of mercury may be introduced from a receptacle connected to the tube which is melted off when the mercury distilled therefrom has condensed as one or more drops on the inner wall. Reference has been directed by the Comptroller to Specifications 259,193, 282,064, 299,931 and 307,982.
Patent GB-636330-A (GB)
Title: Improvements in bread toasters
IPC: A47J37/08
Filed: 1947-01-30
Abstract: 636,330. Toasting apparatus. SCOTT, A. T. Jan. 30, 1947, No. 2954. [Class 28(i)] An electric bread toaster has a rotatable cage 29, 30 in which slices of bread are disposed perpendicularly to their axis of rotation, fixed heating elements 24, 25, 26 being disposed on each side of the spaces so occupied by the bread. The axis 17 of the cage is connected to a bell crank lever 31 provided with a peg 38, rotational movement being from a motor driven worm wheel 49 through a rotatable disc 36 carrying an axially displacable peg 54 and a pivoted detent lever 42 acted upon by a spring 44. In operation, the pegs 38 and 54 are drawn together, finger pressure on a pivoted lug 47 disengaging the peg 54 from the worm wheel whilst the disc 36 is held by the lever 42 engaging a stop 58. The bell crank lever 31 therefore rotates anti-clockwise until the lever 42 registers with a notch 45 in the lever 31. The two pegs are then moved simultaneously anti-clockwise to any position 60 as indicated by a pointer 59 on the disc 36. This displacement of the lever 31 closes a switch 41 and energizes the heating elements and a motor 52. Finger pressure on the lug 47 is then released and the peg 54 engages with a hole 57 of the now rotating worm wheel to cause the cages to rotate. Slices of bread are then inserted in the cage through openings 13, 14 in the toaster top. As the cages approach their finishing position, the lever 42 engages the stop 58 to disengage the lever 42 from the notch 45. This allows the cages to be rotated rapidly under the action of a spring to their final position, so tipping the toast out of openings in the toaster side. A clock-work motor may replace the electric motor.
Patent GB-989379-A (GB)
Title: Organopolysiloxane-polycarbonate copolymer
Inventor: VAUGHN HOWARD ALTON
IPC: C08G64/18
Filed: 1962-01-26
Abstract: A co-polymer having the general formula <FORM:0989379/C3/1> wherein n is at least 1, a is from 1 to 200, b is from 5 to 200, the ratio a:b varies from 0.05 to 3, u is 0 or 1 to 4, y is a <FORM:0989379/C3/2> A is H, R is H or a monovalent hydrocarbon or halohydrocarbon radical (saturated or unsaturated), R1 is a monovalent hydrocarbon, halohydrocarbon or cyanoalkyl radical, and Z is a halogen or an alkyl radical, can be made by initially mixing and reacting in the presence of an acid acceptor and under anhydrous conditions 0.15 to 3 pts. (by wt.) of a siloxane of the formula <FORM:0989379/C3/3> wherein X is a halogen, per part of a polyhydric phenol of the formula <FORM:0989379/C3/4> and thereafter phosgenating the intermediate reaction product so formed until the resulting mass achieves maximum viscosity.  The acid acceptor may de a t-amine, e.g. pyridine, quinoline or tributylamine, and can also be used as a solvent for the reactants.  Other solvents specified chlorobenzene and methylene chloride.  In a typical example, a chlorinated polydimethyl siloxane of the formula <FORM:0989379/C3/5> was added to a mixture of 2,2-bis-(4-hydroxyphenyl)-propane, chlorobenzene and pyridine and the resulting mixture was heated to 55 DEG  C. for 1/2 hour; thereafter phosgene was passed into the mixture until maximum viscosity of the mixture was attained. Further chlorobenzene was added and the mass was filtered, the copolymer being precipitated by adding methanol to the filtrate.  Uses.-As surface coatings for appliances, as insulation and other coatings for rods and wires, as binding materials and adhesives, e.g. in laminates.
Patent GB-1502891-A (GB)
Title: Heavy crude conversion catalysts therefor and their preparation
IPC: B01J23/74
Filed: 1975-02-07
Abstract: 1502891 Alumina catalyst support EXXON RESEARCH & ENG CO 7 Feb 1975 [7 Feb 1974 (7) 16 Dec 1974 (8)] 3175/75 Heading C1A [Also in Divisions B 1 and C5] An alumina catalyst support is made by dispersing an aluminium halide in an aqueous or alcoholic medium in a molar ratio of water (or alcohol) : aluminium halide of 15:1-30:1 at 30-100 F.; adding olefin oxide in an amount sufficient to maintain a pH of 5-8 and to remove halide from the solution and form a sol; raising the temperature to at least ambient temperature to form a gel which separates from its syneresis liquid; ageing the gel in contact with its syneresis liquid for at least 6 hours; separating the gel from the liquid; and washing, drying and calcining the gel. The gelation step may be one of forming beads in oil. One or more Group VIII noble metals or rare earth metals or compounds thereof may be added to the solution before sol formation; a Group VI A  and/or VIII metal or compound thereof may be added before gelation; or the support may be impregnated with a non- aqueous solution of a Group IV B  and/or VI A  and/or VIII metal compound, dried and calcined. The support has micromeritic properties such that catalysts prepared therefrom containing 5-50 wt. per cent of a Group VI A  metal component and 1-12 wt. per cent of a Group VIII metal component, measured as oxides, are in the form of particles of sizes (i.e. diameters) in at least one of the ranges (a), (b) and (c) and are such that particles in the size range (a) of 1/500 to 1/50 inch have at least 20% of the total pore volume in pores of diameter 100-200 , particles in the size range (b) of 1/50 to 1/25 inch have at least 15% of the total pore volume in pores of diameter 150-250  and particles in the size range (c) of 1/25 to # inch have at least 15% of the total pore volume in pores of diameter 175-275 , the particles having a surface area of 200-600 m.<SP>2</SP>/g. and a pore volume of 0À8-3À0 c.c./g. In a modification of the invention the particles of the catalyst (R-2) are in the size range 1/500-# inch and have at least 55% of the total pore volume in pores of diameter 100-200 , less than 10% of the total pore volume in pores of diameter 0-50 , less than 25% of the total pore volume in pores of diameter greater than 300 , a surface area of 200-600 m.<SP>2</SP>/g. and a total pore volume of 0À6-1À5 c.c./g.
Patent GB-619048-A (GB)
Title: Improvements in or relating to method and apparatus for fabricating concrete structures
IPC: E04B1/16
Filed: 1946-02-01
Abstract: 619,048. Casting concrete structures in situ. DOBELL, C. Feb. 1, 1946, No. 3237. [Class 20(ii)] [Also in Group V] Concrete structures are made by a continuous process by extruding concrete under pressure through a mould, the passage of the concrete through the mould being resisted in order to increase the pressure and force out surplus water to expedite setting and increase its strength. The concrete is pumped through a pipe 10 into a mould 4 against a starter head 14 which .is forced along the mould and finally out of the end. The resistance to movement is provided by some of the wire reinforcement 12 which is attached by clamps 15 to the head 14 and is wound off reels 16 having frictional or hydraulic tension devices. Water is forced from the concrete between the staves 8 of which the mould is formed and into channels 28 formed between the staves. The head 14 is sealed by a rubber &c. gasket 19 compressed by a plate 20 and a leather packing ring. Untensioned reinforcing wires 13 are also embedded in the concrete. Bricks, tiles or pipes may be made by this process. Auxiliary means may provide resistance to movement for increasing the pressure on the concrete in the form of a nut rotated in contact with a cross head on the mould by a screw threaded rod on the head 14. The nut may be operated by worm gearing. Alternatively the head may be drawn out by a screw and nut working against the cross head when a greater tension is desired in the reinforcing wire than the pressure required to develop the desired strength in the concrete. In a modification spring-pressed brake shoes provide the resistance. In a modification for constructing a pole, concrete is pumped into a cavity in a preformed base and through a mould formed with staves as in Fig. 1. In a further modification for constructing a tank, the mould comprises an inner and outer wall of staves 65. Fig. 9, in an annular cavity in a preformed base 60, a roof member is formed comprising a wall 74 which is cast in the mould on pallets 70 and a roof 75. Concrete is then pumped into an annular passage 62, raising the roof member and forming a side wall. Liner plates 68 fall away. A floor or beams may be mounted on the wall 74. Excess water may be drained from the concrete by bleeder pas sages formed of four longitudinal segments between which the water is forced into the passages and out to the exterior.
Patent GB-1041820-A (GB)
Title: Bearing bushing assemblies
IPC: F16F1/373
Filed: 1964-01-24
Abstract: 1,041,820. Rubber bushes. CLEVITE HARRIS PRODUCTS Inc. Jan. 24, 1964 [Jan. 28, 1963], No. 3238/64. Heading F2S. [Also in Division E2] A tubular bearing bushing assembly comprises a sleeve formed of tubular parts of rubber separated by a rigid tubular intermediate portion 28 and mounted between rigid inner and outer members 21, 14 in radial compression. The bore of the rubber sleeve 10 is provided with a plurality of circumferentially and longitudinally spaced raised ribs 20 which define a plurality of cavities or recesses 22 filled with a lubricant, e.g. silicone grease. The bore is also formed with a sealing shoulder 24. In a modification (Fig. 5, not shown), the rubber sleeve is formed in two parts 34a, 34b with a rigid reinforcing intermediate portion 36 of metal embedded therebetween. The outer face of the inner part 34a and the inner face of the outer part 34b are bonded to the reinforcing portion 36. A flange 38 retains the part 34b but is not bonded to it. The part 34a preferably has a greater resiliency and damping properties than the part 34b. The outer face of part 34b is provided with the load bearing ribs 20, the lubricant retaining pockets and seals 40. In further modifications the load bearing ribs are provided adjacent the reinforcing portion on the inner surface of the outer part (Fig. 6, not shown) and on the outer surface of the inner part (Fig. 7, not shown). Load bearing ribs may also be provided on the inner surface of the inner part as well as the outer surface of the outer part (Fig. 8, not shown). Further the rubber sleeve may comprise three parts (Figs. 9, 10, not shown).
Patent GB-1217967-A (GB)
Title: Hot melt adhesives containing dimethyl alpha-methyl styrene/alpha-methyl styrene/styrene terpolymers
Inventor: ARNOLD VERNON WILSON
IPC: D21H19/20
Filed: 1969-01-21
Abstract: 1,217,967. Polymer composition. STANDARD OIL CO. 21 Jan., 1969, No. 3280/69. Heading C3P. [Also in Divisions B2 and C5] A composition, suitable for use as a hot melt adhesive or coating comprises 0-90% of a wax having a melting point of 125-200‹ F., 5-80% of an ethylene-vinyl acetate, ethylene-ethyl acrylate or ethylene-isobutyl acrylate copolymer having an unsaturated ester content of 10-50 mol. per cent, and 5-80% of a dimethyl alpha-methyl styrene/alpha-methyl styrene/ styrene resin containing 10-70 mol. per cent of each component monomer and having a ball and ring softening point of 150-325‹ F.
Patent GB-576537-A (GB)
Title: Wall construction
IPC: E04B2/76
Filed: 1944-02-22
Abstract: 576,537. Wall baseboards. TRIGGS, W. W. (National Gypsum Co.). Feb. 22, 1944, No. 3293. [Class 20 (iv)] A base-forming means for an interior wall or partition comprises a longitudinal base element having a vertical web portion and longitudinal channels at its upper and lower edges and securing means comprising a portion to be secured to a building and locking means including at least one member which is movable to interlock with the channels in the base element. As shown a securing means nailed to the floor has a vertical web portion 17 with a flange 18 at one side with projections 19 and 20 to co-operate with a channel 15 on a longitudinal base element 13 and a flange 28 at the other with a pivoted member 27 which interlocks with the channel 15 on the base element 14. The securing means also has a tongue 31 to support a vertical stud 30 which may carry a vertical lath to support plaster which is also filled between the base elements. The securing may be modified, Figs. 5 and 6 (not shown), for fixing to a wall, in which case the pivoted form of the engaging member only is used. In a further modification of the securing member, Fig. 7 (not shown), one end only of the engaging member may be movable.
Patent GB-1040362-A (GB)
Title: Process for separating iron from an iron-contaminated cobalt hydroformylation catalyst
Inventor: BRADY WILLIAM THOMAS
IPC: C07C45/50
Filed: 1964-01-25
Abstract: Fe values are obtained from contaminated Co-catalysts by digesting in aqueous HNO3, precipitating Fe as Fe(OH)3 or Fe(NO3)2OH at a pH up to 5.4 followed by filtration.  Precipitation of Fe is effected by addition of alkali metal carbonates or hydroxides.  Subsequently the Co can be precipitated at pH up to 8.5 by adding further quantities of soda ash to the filtrate.  Examples are given.ALSO:Co-Oxo catalysts contaminated with Fe are regenerated by digestion in aqueous HNO3, prescription of Fe as basic nitrate or hydroxide at a pH not above 5.4, and filtration. Precipitation of Fe may be effected by addition of the requisite amount of soda ash.  Precipitating agents are carbonates and hydroxides of alkali metals.  Subsequently the Co can be precipitated at pH up to 8.5 by adding further quantities of soda ash to the filtrate.
Patent GB-880786-A (GB)
Title: Improvements in or relating to nickel plating
Inventor: PEDLER ALAN EDWARD
IPC: C25D3/12
Filed: 1959-01-30
Abstract: 880,786. Nickel plating baths. NATIONAL ALLOYS Ltd. Jan. 13, 1960 [Jan. 30, 1959; Oct. 27, 1959], Nos. 3332/59 and 36351/59. Class 41. Zinc alloy die castings are plated directly with nickel using a solution of nickel citrate made alkaline by adding an alkali metal hydroxide. The plating may be rendered bright by adding nickel chloride or formate, formalin sodium citrate and saccharin. A final bright plating of nickel using a conventional acid solution may be applied.