baber/WOPTO huggingface dataset:
Patent GB-464011-A (GB)
Title: Film driving rollers for kinematographic and photographic developing machines
IPC: G03D3/13
Filed: 1936-06-09
Abstract: 464,011. Film driving rollers for photographic developing machines. DEBRIE, A. L. V. C. June 9, 1936, Nos. 16128 and 16129. Convention dates, Oct. 26, 1935 and April 20, 1936. [Classes 97 (i) and 98 (ii)] Film-driving rollers for kinematographic and photographic developing-machines have their outer useful diameters automatically adjusted by any contraction of expansion of the film to give a constancy of tension in the film. The roller 1 of moulded material carries at each end in circular grooves 3, 31, a hollow rubber ring 2, 2<1> which forms an air chamber which is more or less flattened bv the tension in the film. Alternatively rubber sheaths, spring pressed bars, or spring blades may be employed. In Fig. 4 are also shown manually adjustable rollers for use as entrance rollers. A sleeve 6 on the axle 5 has two grooves 14, 14<1> in which slide cotters 15, 15<1> attached to a conical sleeve 16 and formed with radial tails 25. Wedge parts 17, 171, 18, 181, are distributed over the sleeve 16 and are enclosed by yielding sheaths 19, 19<1> forming the outer driving surface of the rollers 12, 12<1>. The cotters 15, 15<1> are actuated for sliding by means of a ring 26 which engages a threaded tail piece 23 and moves the tail pieces 25 by their engagement with recesses 24. Markings on the outside of the threaded ring 26 determine the amount of movement of the cotters 15, 15<1> which causes the appropriate expansion, of the wedges 18,19 and of the yielding sheath 19, 19<1>.
Patent GB-1356382-A (GB)
Title: Sealant compositions in strip or ribbon form
IPC: C09D167/08
Filed: 1970-04-06
Abstract: 1356382 Sealant composition FOSECO TRADING AG 19 April 1971 [6 April 1970 5 Feb 1971] 16132/70 and 4052/71 Headings C3N and C3R A sealant composition in strip or ribbon form comprises by weight 40-70% finely-divided particulate filler, 3-25% fibrous material, and 10-40% liquid vehicle comprising (a) an alkyd resin, (b) a non-drying vegetable oil, or (c) a blend of a vegetable drying oil and antioxidants, the sealant having penetration #70 penetration units at -10 C. and #35 penetration units at 30 C.; after exposure at 70 C. to air of 50% relative humidity, penetration is #35 units at -10C.; and under normal pressure, and irrespective of time and pressure, hardness #120 penetration units. When held at 150 C., it may be such as not to soften to >65 penetration units in 5 min. and may therefore rapidly harden to #60 units. The filler may be chalk, CaCO 3 , paris white, fine whiting or talc. 90% of the filler may have particle size <0À05 mm. The particles may be coated with a resin or stearate. The fibrous material may be fiberized newsprint, wood fibre, carbonized rayon, carbonized Kraft paper fibres, asbestos, fibrous asbestine talc, glass wool, or slag wool. The fibres may have length 0À01-0À05 mm. and diameter 180-400. The vehicle may be (a) alkyd resin based on castor azoleic acid, castor adipic acid, castor sebacic acid, or linseed distilled castor oil or sebacic acid; (c) linseed, stand, or castor oil containing as antioxidants methylethyl ketoxime, hydroquinone, olive oil, xylenol phenolic resin, soya bean oil, or soya bean stand oil.
Patent GB-869847-A (GB)
Title: A photographic objective and mount
IPC: G02B7/02
Filed: 1959-05-12
Abstract: 869,847. Focusing lens mounts. SCHNEIDER, M. C. May 12, 1959 [July 26, 1958], No. 16199/59. Class 97(1) In a lens mount focusing to a pre-selected value is carried out by first setting a spring- loaded stop to the pre-selected value with the aid of one of two distance scales and then turning a focusing ring until movement thereof is checked by the stop. As shown, a preselector ring 7 is provided with a stop 8 which lies in the path of a pin 6 depending from the usual focusing ring 4. In use the ring 7 is set to the required object distance by first axially moving the ring against a spring 11 to release a catch pin 9 from a hole 10 in the lens mount and is then rotated until the required distance is indicated on a scale carried by the lens mount appears in a hole 13 in the ring. On release of this ring 7 it then moves under the action of spring 11 so that pin 9 engages another hole 10 in the lens mount and so fixes the position of the stop 8. The lens is then focused on this distance by rotating ring 4 until the pin 6 engages the stop 8 in its adjusted position.
Patent GB-1008688-A (GB)
Title: Improvements relating to conveyerized storage racking comprising gravity roller ways
Inventor: SMITH ALFRED GEORGE
IPC: B65G13/00
Filed: 1963-04-24
Abstract: 1,008,688. Fluid-friction brakes; dashpots. DEXION Ltd. April 9, 1964 [April 24, 1963], No. 16199/63. Headings F2E and F2S. In a gravity roller way for conveying loaded pallets, the pallets are adapted to be braked by means of a roller or rollers 13 arranged at intervals along the track of the roller way in positions such that they will be engaged by the pallets passing over them, each roller 13 being operatively connected to pump means 1 which operates, when the roller is rotated, to pump fluid through a restricted orifice 23, 25. The pump is operatively connected to the roller 13 by means of an eccentrically-mounted pistonrod 8 such that the pump means operates in a reciprocal manner to pump liquid through the orifice 23, 25 on piston movement in one direction only substantially unrestricted return flow being permitted by means of a valve member 18 on movement in the other direction. In operation, a pallet travelling down the gravity roller way will make contact with the roller 13 and rotate the latter. If the pallet is moving slowly, the piston 6 in its downward movement will displace fluid upwardly through the orifice 23 at low velocity so that the piston and the roller 13 will encounter little resistance to movement and thus offer little resistance to the pallet passing over it. Should the pallet be moving fast, however, the piston 6 will attempt to force fluid through the orifice 23 at high velocity and since the resistance to flow will be high downward movement of the piston 6 and rotation of the roller 13 will be resisted and the pallet will be decelerated.
Patent GB-1527959-A (GB)
Title: Rotary motion producing apparatus
IPC: H02K7/02
Filed: 1977-04-19
Abstract: 1527959 Energy storage devices; variablespeed friction gear E P CARINI 19 April 1977 [22 April 1976] 16201/77 Headings F2D and F2X One or more electric motors 42, 46 mounted on a flywheel 18 have pinions 50 meshing with a fixed, toothed ring 16 to cause the flywheel to be driven in one direction, rollers 22 cause a second flywheel 20 to be driven in the opposite direction, and a friction wheel 54 between the flywheels and splined to an output shaft 52 is movable axially on the shaft in either direction from a neutral position at the centre of the flywheels to cause the output shaft to be driven in either direction at variable speed. Batteries for energizing the motors may be mounted on the flywheels.
Patent GB-723935-A (GB)
Title: Improvements in or relating to a process for the manufacture of acrylonitrile
Filed: 1952-06-27
Abstract: A process of producing acrylonitrile by reacting acetylene and hydrogen cyanide at elevated temperature in the presence of a catalyst comprising an aqueous solution of cuprous chloride and one or more alkali metal halides, is characterized by the fact that the reaction is carried out with a catalyst solution having a concentration of total halides in excess of the eutectic composition and containing at least 1.03 moles of cuprous chloride per mol. of alkali metal halides.  The catalyst solution may, for example, contain from 72 to 78 per cent by weight of total halides, and the amount of cuprous chloride may be up to 1.10 moles per mol. of alkali metal halides.  Bismuth and/or arsenic compounds may replace part of the cuprous chloride in the catalyst composition as described in Specification 612,590.  Such compositions form a clear solution on heating to above 45 DEG  to 50 DEG  C.  In example (1) a catalyst solution comprises 0.8 mole of potassium chloride, 0.2 mole of sodium chloride, 1.075 moles of cuprous chloride and 3.2 moles of water, which is treated with hydrazine to remove cupric copper.  Acetylene and hydrogen cyanide are passed in while heating to 80 DEG  C., the hydrogen cyanide being used at 0.166 mole per hour per kilogram of catalyst solution, the acetylene at 6 to 8 times this rate.  A table shows the proportion of acrylonitrile, acetaldehyde, hydrogen cyanide and vinyl-acetylene, in the exit gases.  In example (2) the catalyst comprises 0.8 mole of potassium chloride, 0.2 mole of sodium chloride, 1.035 mole of cuprous chloride, 0.04 mole of bismuth chloride and 3.2 moles of water.  Specification 591,945 also is referred to.
Patent GB-1108051-A (GB)
Title: Electrodeposition of platinum metals and alloys
Inventor: TYRRELL COLIN JOHN NELSON
IPC: C25D3/50
Filed: 1965-04-15
Abstract: A coating of Pt, Pd, Rh or Ru, or an alloy of two or more of Pt, Pd, Rh, Ru, and Ir is formed on a substrate, e.g. a cathode of etched or sandblasted Ti, Mo, W or polished Cu protected by a flash coating of Au, by electro-deposition from an acid aqueous solution of at least 0.5 g/l in total of the respective metal or metals in HBr. The solution may also contain uncomplexed cations, such as of Na (e.g. Na hexahydroxyplatinate for Pt plating), K e.g. 3-15 g/l or ammonium (for Pt-free solution).  For Pt, or Ru plating, the pH of the solution is preferably less than 2, and 2-4 for Pd plating.  Examples of alloy coating compositions of Pt-Ir, Ru-Rh, Rh-Pd, Ru-Pd and Ru-Rh-Pd are specified; e.g. a 20% Ru-49% Rh-31% Pd alloy coating.
Patent GB-529529-A (GB)
Title: Art of setting diamonds and making diamond tools
IPC: E21B10/46
Filed: 1939-06-02
Abstract: 529,529. Making diamond tools. SMIT & SONS, Inc., J. K., STONE, J. M., and TAYLOR, R. H. June 2, 1939, No. 16257. [Class 124] In making diamond tools such as core bits, dressing tools for trueing grinding-wheels or drawing dies one or more diamonds coated with powdered metal is positioned in a mass of metal powders which is cold pressed and then heated to form a coherent mass with the diamond firmly embedded therein. In one form the diamonds 4 are first coated with aluminium powder which may be suspended in acetone and are placed in a powder mixture 6 which may consist of 25 parts by weight of copper to 75 parts of tungsten or, for a harder setting, of 10 parts of copper and 90 parts of tungsten. The mixture, contained in a holder 2, is compressed by a ram 8 at about twenty tons per square inch. A shank 10 is then inserted over the pressed mass, Fig. 2, welding copper strip wrapped on the shank at 12 and the assembly wired together at 14, placed in an oxygen free furnace and heated to about 2100‹F. for twenty minutes. During this process the welding metal forms a layer 18 securing the shank to the holder which is finally turned or ground away to expose the diamonds, Fig. 4. The welding metal also flows into the matrix 16.
Patent GB-771151-A (GB)
Title: Method for the preparation of aminoacyl-anilides
IPC: C07C237/00
Filed: 1955-06-07
Abstract: Compounds of the formula <FORM:0771151/IV(b)/1> where R1 is hydrogen or methyl and R2 and R3 are alkyl groups of up to 4 carbon atoms, and acid addition salts thereof, are made by reacting 2 : 6-dimethyl aniline or 2 : 4 : 6-trimethyl aniline or a salt thereof with the mixed anhydride of a corresponding dialkylaminoacetic acid and an alkoxy or aralkoxy formic acid.  The mixed anhydride may suitably be derived from ethoxy-, propoxy-, butoxy- or benzyloxyformic acid and may conveniently be prepared by reaction of the dialkylaminoacetic acid and a halogeno-formic ester.  In examples: (1) the sodium salt of diethylaminoacetic acid is reacted with ethyl chloroformate and the product is treated with 2 : 6-dimethylaniline to give omega-diethylamino-2 : 6-dimethylacetanilide; and (2) 2 : 4 : 6-trimethylaniline is converted to omega - diethylamino - 2 : 4 : 6 - trimethylacetanilide by the process of (1).  Specifications 634,072, 634,073, 705,460 and 746,552 are referred to.
Patent GB-943220-A (GB)
Title: Improvements in or relating to thiocyanato-hydroxy steroids
IPC: C07J71/00
Filed: 1960-05-09
Abstract: The invention comprises a 2b -thiocyano-3a -hydroxy, 5a -thiocyano-6b -hydroxy, 11b -thiocyano-12a -hydroxy and 12a -thiocyano-11b -hydroxy steroid of the androstane, pregnane, cholane, cholestane or spirostan series, and the preparation thereof by treating a corresponding epoxy-steroid with thiocyanic acid, which may be formed in situ by shaking a salt of thiocyanic acid and an acid in an inert solvent, or may be used in the form of a gas.  The reactant for the above process may be a 2a , 3a -, 5b , 6b -, 11a , 12a -or 11b , 12b -epoxy-steroid.  (5-Thiocyano-3b , 6b -dihydroxy-5a -pregnun-20-one and the preparation thereof by the above method are excluded).  In the examples the following compounds are prepared:-methyl 3a -acetoxy-11b -thiocyano-12a -hydroxy-5b -cholanate, methyl 3-oxo-11b -thiocyano-12a -hydroxy-5b -cholanate, 3b -acetoxy-11b -thiocyano-12a -hydroxy-5a , 22a -spirostan, 11b -thiocyano-12a -hydroxy-3, 20-dioxo-4-pregnene, methyl 3a -acetoxy-11b -hydroxy-12a -thiocyano-5b -cholanate, 3b -acetoxy-5a -thiocyano-6b -hydroxy-5a -cholestane, 2b -thiocyano-3a -hydroxy-5a -cholestane, and 2b -thiocyano-3a , 17b -dihydroxy-17a -methyl-5a -androstane. Specification 876,634 is referred to.
Patent GB-1500118-A (GB)
Title: Roof verge unit
IPC: E04D13/158
Filed: 1976-04-05
Abstract: 1500118 Verge units MARLEY BUILDINGS Ltd 5 Jan 1976 [21 April 1975] 16388/75 Heading E1B A verge unit for gable ends comprises a sheet member formed to provide a first portion 15 which is located on the gable, a second portion 16 which is vertical, and a third portion 18 overlying and spaced from the first portion which clamps the edges of the tiles, the first and third portions 15, 18 conveying towards each other along the longitudinal axis of the channel, the unit being telescopable within another such unit. A drainage trough 17 may be formed between the portions 15 and 16.
Patent GB-402824-A (GB)
Title: Improvements in or relating to apparatus for the carrying out of gas reactions
IPC: C01C3/00
Filed: 1932-06-10
Abstract: <PICT:0402824/III/1> Heat is supplied to gas reactions by passing the gases through a chamber of small cross-section, the walls of which constitute the secondary circuit of a step-down transformer.  The Figure shows an annular metallic reaction chamber 1 constituting the secondary circuit, surrounding the primary constituted by the water-cooled metal pipe 6 wound on laminated iron core 7.  The reaction chamber may contain a spiral baffle.  In a modification, the secondary circuit is in the form of a spiral of flattened metal tube. The reaction chamber may consist of or contain a catalytic material. Reactions mentioned are the conversion of ethyl alcohol to ethylene, the production of hydrocyanic acid from ammonia and methyl formate or ethylene, the conversion of alcohols to aldehydes, and the decomposition of various hydrocarbons.
Patent GB-503054-A (GB)
Title: Improvements in and connected with meat tendering apparatus
IPC: A22C9/00
Filed: 1938-06-01
Abstract: 503,054. Tendering meat. VENNING, L.E., and VENNING, B. June 1, 1938, No. 16450. [Class 28 (ii)] In a meat-tendering apparatus, the stripper 12, 14 descends with the knives 10 until it contacts with the meat when it is locked by clamping-screws 22, turnable by arms 23 connected by an operating-rod 24, bearing on rods 35 carried by the stripper frame 12. The stripper remains locked whilst the knives penetrate into the meat and are withdrawn therefrom. The stripper comprises slightly pointed bars on the front 14, the bars passing between the knives and the points resting in a groove in the rear edge of the frame 12. The frame 12 has vertical rods (not shown in Fig. 2) slidable in holes in the knife-carrying block 9, the upper ends of the rods being provided with washers retained in place by split-pins, so that the knife block 9 raises the stripper after the knives have left the meat and the locking-screws 22 have been released. The front 14 is secured to the frame 12 by screws 17. Rods 11 are secured to the frame 12 and slide in tubes 8 secured to the knifeblock 9; the tubes 8 being slidable in tubes 7 carried by the side. supports 6. Springs 25 are arranged to press on the rods 11 to urge the stripper downwards. The knives are depressed by a handle 26 on a shaft 27 having arms 28 connected to the knife block by links 29. Springs 31, anchored at one end, and connected to an arm on the shaft 27, raise the knives when the handle is released. The bar 24 is provided with stop-pegs to prevent the screws 22 from being turned too far. The meat is placed. on a board 5 which is then slid beneath the knives.
Patent GB-514758-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J1/18
Filed: 1938-06-02
Abstract: 514,758. Thermionic cathodes. M-0 VALVE CO., Ltd., and RANKIN, D. A. June 2, 1938, No. 16544. [Class 39 (i)] The filamentary cathode 1 of an electric discharge device is threaded through the gaps between two or more cross bars 3, 4, 5, of an insulating frame 2 and tensioned so that it is drawn against opposite sides of adjacent cross bars. In the Fig. the hair pin filament 1 is tensioned by a spring 6 at the light and pulled against the front of the bars 3 and 5 and the back of the bar 4. The side bars at the upper end of the mica frame 2 enter slots 7 in the mica plate 8. The limbs of a V or W or other shaped filament may be threaded in opposite senses. The bars are as small as is consistent with rigidity, and the frame need not be supported otherwise than by the filament. The Provisional Specification states that the frame may be rigidly secured to electrode supports or held within slots on grooves in an electrode. Specifications 372,758 and 477,787 are referred to.
Patent GB-594699-A (GB)
Title: Improvements in methods of producing surface conversion coatings on zinc
IPC: C25D11/38
Filed: 1944-08-31
Abstract: 594,699. Anodic surface treatment of zinc. STARECK, J. E., CORLISS, L. M., and UNITED CHROMIUM, Inc. Aug. 31, 1944, No. 16578. [Class 41] Surface conversion coatings are produced on zinc by anodic treatment, using current of 2-50 amps. per sq. ft. from an external source, in an aqueous bath containing a soluble chromate and an auxiliary acid radical selected from the group sulphate, selenate and fluoride (simple or complex) radicals, also having an alkali metal content to adjust the pH to 2-7. The proportion by weight of hexavalent chromium to sulphate radicals when employed is to lie within the range 10 : 1 and 30 : 1, the corresponding ranges in respect of the other auxiliary acid radicals being on the basis that 5 parts by weight of fluoride radical or 2 parts of silicofluoride radical or 1 part of selenate radial is equivalent to 1 parts of sulphate radical. The optimum proportion range with sulphate as the auxiliary radical is 15: 1 to 20: 1 with pH 3-4.5. The bath may be at room temperature. Chromic acid may be added from time to time to regulate the pH. The auxiliary acid radical may be introduced in the form of a sparingly soluble salt in excess, e.g. calcium or strontium sulphate or sodium silico-fluoride. An acetate or a chromium salt may be added as a buffer. A jet-black colour is obtained in baths of the sulphate radical type and yellow in baths of the fluoride type, similar colours being obtained on zinc-base diecastings of good quality. A steel cathode may be employed. The coating consists of zinc chromate with a small amount of zinc oxide.
Patent GB-400135-A (GB)
Title: Improvements in or relating to wetting agents
IPC: H03B11/02
Filed: 1933-06-09
Abstract: To improve the wetting properties of alkaline mercerizing lyes iso amyl alcohol together with phenols free from or poor in o-cresol, are added.  In an example, iso amyl alcohol and ortho cresol free phenol, or cresol or xylenol mixtures are added to the mercerizing lyes.
Patent GB-860017-A (GB)
Title: Improvements in knobs used as handles
Inventor: GILBERT GILBERT FREDERICK
IPC: E05B1/00
Filed: 1956-05-29
Abstract: 860,017. Knobs. STADIUM Ltd. May 29, 1957 [May 29, 1956], No. 16611/56. Class 52(1). [Also in Group XVII] A moulded knob or handle for an article has a central metallic fastening 4 by which it may be attached to the article and one or more integral projections 12, 14 offset from the fastening which will enter holes or recesses in the article to prevent rotation of the knob about the fastening. As shown, a saucepan-lid handle 2 is of moulded plastic and has integral projections 12, 14 on its under-face. The central fastening comprises a metal rod 4 with a head embedded in the knob, the lower end of the knob passing through the lid 6 below which it is either riveted over a washer 8, as shown, or threaded and held by a nut.
Patent GB-797534-A (GB)
Title: A mechanical current converter
IPC: H02M1/26
Filed: 1955-06-10
Abstract: 797,534. Interrupters. LICENTIA PATENTVERWALTUNGS-GES. June 10, 1955 [June 29, 1954], No. 16708/55. Addition to 749,887. Class 38 (5). In a converter similar to that of the parent Specification, the moving contacts are connected in pairs 11, 12, &c. to one terminal X &c. of the secondary windings of a transformer, the fixed contacts of the pairs being connected to the positive and negative D.C. conductors in such a way that during one half-wave current flows from the positive conductor, contact 21, the winding between U and X, and contact 11 to the negative conductor. Sleeves 1, 2 have the same angular position, sleeves 3, 4 are displaced 60 degrees with respect to 1 and 2, and sleeves 5, 6 are displaced a further 60 degrees with respect to sleeves 3 and 4. The three secondary windings each carry currents 120 degrees displaced from each other.
Patent GB-137755-A (GB)
Title: Improvements in automatic cradles
IPC: A47D9/02
Filed: 1919-07-03
Abstract: 137,755. Magidson, F. July 3, 1919. Folding cradles.-A cradle which can be rocked automatically comprises a stand and a body, each adapted to be dismembered for transport, means for suspending the body from the stand, and means on the stand for rocking the body. The body comprises easily detachable head and foot members 1, 2, side members 3, and bottom 4, and is suspended by members 8 from the stand formed of end members 5, 6 and. a connecting-member 7. The part 7 contains the cradle-swinging mechanism, and is secured to flat sections S of the stand. The cradle-swinging mechanism comprises a spring 29 wound on a core having independently movable sections 22, 24, 27 with washers 30 between them, and an escapement mechanism whereby the arm 12 is rocked. The movement of this arm is communicated to the cradle through the medium of the rod 11 and parallel links 10.
Patent GB-327332-A (GB)
Title: Improvements in or relating to weighing apparatus
IPC: G01G23/20
Filed: 1929-05-31
Abstract: 327,332. Avery, Ltd., W. & T., and Taylor, J. W. May 31, 1929. Counter scales; indicating-mechanism.-In a weighing-apparatus, the weighbeam, steelyard, or a lever of the weighing system is operatively connected to a rotatable indicating means disposed within a pillar or housing and incorporating three or more charts adapted for rotary movement about a vertical axis, the charts being observable simultaneously from three or more positions through reading apertures in the walls of the pillar or housing. As applied to a counter scale, a rod 11 rising from the beam 7 engages the forked end 13<a> of an horizontal lever 13 controlled by springs 18 and secured to the spindle of the indicating drum 15. By these means the movements of the beam impart a rotary motion to the indicating drum. Four identical sets of weight graduations 15a are carried by the drum and are viewed through four windows 17<a> symmetrically disposed in the housing 17. A similar indicating arrangement may be applied to a steelyard apparatus, the rod 11 being secured above the fulcrum of the steelyard.