baber/WOPTO huggingface dataset:
Patent GB-1511486-A (GB)
Title: Seal emplacement tool
IPC: B25B27/00
Filed: 1974-09-03
Abstract: 1511486 Seals DEFENCE SECRETARY OF STATE FOR 22 Aug 1975 [3 Sept 1974] 38476/74 Heading F2B In order to insert an 0-ring seal 23 into an internal groove, it is carried into position in a tube 10, having a telescopically movable plunger 12 and an axially fixed guide disc 21. When the disc is located in the groove, the plunger is operated to push ring 23 out of the tube 10. As the ring moves outwardly it is deflected, by the disc 21, into the groove. In its end position (Fig. 4) the plunger deflects the disc 21, thus facilitating its withdrawal through the seated O-ring.
Patent GB-1237284-A (GB)
Title: Apparatus for delivering bulk material
Inventor: WUST HELMUT
IPC: G01G11/00
Filed: 1968-08-13
Abstract: 1,237,284. Weighing apparatus. CARL SCHENCK MASCHINENFABRIK G. m. b. H. Aug. 13, 1968 [Aug. 29, 1967; Oct. 4, 1967], No. 38730/68. Heading G1W. [Also in Division G3] Apparatus for delivering material at a substantially constant rate comprises a feed belt 4, a storage belt 9 for receiving material discharged from the feed belt 4, a measuring device 8 for determining the loading on the storage belt 9 and for controlling the position of the discharge end of the feed belt relative to the storage belt 9 so as to achieve a substantially constant load of the bulk material on the storage belt. As shown, the measuring device 8 is a load sensing device connected to a weighbridge 6 having rollers 11 over which a part of the storage belt 9 travels, the measuring device being connected to a device 12 which is arranged to shift the feed belt 4 bodily by an amount depending upon the weight sensed by the device 8, such movement being detected by a member 21 which actuates a controller 22. The controller 22 is arranged to vary the supply of material to the feed belt 4 and may also be arranged to adjust the speed of belt 4 in accordance with the load sensed on the storage belt 9. The controller may also be controlled by a weighing belt 14 arranged at the delivery end of the storage belt 9. The material may be supplied from a store 2 to the feed belt 4 by a bucket wheel 1 and conveyer belts 3. The load on the storage belt 9 may alternatively be measured by volumetric or other means.
Patent GB-1281519-A (GB)
Title: Synchronous self-shifting clutch
Inventor: WHYATT PETER ARTHUR
IPC: F16D23/10
Filed: 1968-08-02
Abstract: 1281519 Ratchet clutches FLUIDRIVE ENG CO Ltd 18 July 1969 [2 Aug 1968 13 Aug 1968] 37121/68 and 38737/68 Heading F2C A synchronous self-shifting clutch which selectively operates for either direction of rotation comprises an intermediate member 5 carrying oppositely directed pawls 10, 11 which initiate movement of the intermediate member 5 along helical splines 4 on one clutch element 2 to engage teeth 8 or 9 on the intermediate member synchronously with teeth 3 on the clutch member 1. As shown the clutch is in a neutral position in which both sets of pawls 10, 11 are disengaged from the clutch teeth 3 to prevent drive in either direction. The intermediate member 5 is moved axially by a control sleeve 15 to engage the pawls 10 or 11 with the teeth 3 and thereafter the pawls 10 or 11 initiate helical movement of the intermediate member 5 to engage teeth 8 or 9 synchronously with the teeth 3. Sufficient lost motion is provided between the control sleeve 15 and extension 12 of the intermediate member 5 to permit the clutch engaging helical movement of the latter. The control sleeve 15 may additionally carry teeth 23 engageable with teeth 21 or 22 on the clutch element 2 to lock the clutch engaged. In Fig. 2 (not shown) the pawls (101, 11<SP>1</SP>) are engageable with a separate ratchet ring (25) axially slidable by a control sleeve (26) to select drive in one direction or the other.
Patent GB-1120263-A (GB)
Title: Water-soluble edible compositions
IPC: A23L27/20
Filed: 1965-09-10
Abstract: A readily-dispersible, water-soluble and edible composition comprises a finely-divided, watersoluble naturally-occurring vegetable gum or cellulose ether, and at least 0.001% dioctyl sodium sulphosuccinate, based on the weight of the gum or ether. The concentration of the sulphosuccinate may be 1%.  The watersoluble cellulose ether may be hydroxypropyl methyl cellulose or carboxymethyl cellulose. The composition may be prepared by adding the sulphosuccinate to the finely divided gum or cellulose ether in the form of a solution in a solvent in which the gum or the cellulose ether is insoluble and then evaporating off the solvent.  The solvent may be perchloroethylene. The gum may be gum Karaya or gum tragacanth.
Patent GB-1493143-A (GB)
Title: Clamping or braking device
IPC: F16D65/14
Filed: 1975-08-08
Abstract: 1493143 Spot-type disc brakes BRAKING SYSTEMS CO Ltd and J PIZZEY 8 Aug 1975 [5 Sept 1974] 38808/74 Heading F2E In a reaction-type disc brake the brake members 18, 22, and a further member 32 are carried by a sleeve 14 which is slidably mounted in a casing 10, brake member 22 is slidably mounted between the other two members which are fixed adjacent opposite ends of the sleeve 14, and the sleeve has an opening 16 between members 18, 22 for reception of the periphery of a disc. Actuation is by rotation of a cam 24 having flats 28, and retraction is by a spring associated with brake member 22. The cam, instead, may have a tapering configuration and be reciprocable in the manner of a wedge along a line perpendicular to that along which the members 18, 22 and 32 are displaceable relative to casing 10. Alternatively the cam may be a face cam rotatable about an axis along which the members are displaceable, the further member 32 and member 22 then having cam faces complementary to those on the cam so that the spacing between them is varied by rotation of the cam. In the embodiment shown, slack adjustment may be provided for by constructing the cam so that the distance between the flats may be adjusted; alternatively means may be provided for setting the cam in neutral positions which vary the separations of members 22, 32. The brake may be used to control longitudinal movement of strip material.
Patent GB-358376-A (GB)
Title: Improvements in machines for working wheel, and like blanks
IPC: B21H1/04
Filed: 1930-12-24
Abstract: 358,376. Making wheels. ROSEXBAUM, J., 5, Dordelmannshof, Gelsenkirchen, Germany. Dec. 24, 1930, No. 38822. Convention date, Jan. 17, 1930. [Classes 83 (ii), 83 (iii), and 83 (iv).] Rolling, drilling- machines ; forging machines and dies; lathe drivers. - A previously shaped wheel blank is finally shaped between dies while its circumference is acted on by radially displaceable rollers, one of the dies having an opening through which a boring tool may pass. A blank R is carried between a positively rotated die member a<1> and an upper member a operated by a piston k in a hydraulic cylinder z Rollers b are positively pressed against the periphery to strengthen and compress the material. A boring spindle c integral with a facing cutter d is moved axially by a piston k<1> in a cylinder z<1> and passes through an aperture in the upper die to finish the hub. A facing tool may operate on the opposite face of the hub.
Patent GB-1192920-A (GB)
Title: Production of Particulate Inks
Inventor: TITOW WITOLD
IPC: G03G9/097
Filed: 1966-08-31
Abstract: 1,192,920. Cellular particulate inks. MOLINS MACHINES CO. Ltd. 25 Aug., 1967 [31 Aug., 1966], No. 38843/66. Headings C3C, C3P and C3R. [Also in Division C4] An ink consists of solid particles each of which is cellular. The particles, which are preferably of 5-30 Á, are prepared from a resinous binder, a colorant, and either a soluble solid which may be leached out to create the voids, or a blowing agent. In one preparative process a solution of the binder, colorant and blowing agent in a solvent is dispersed in a liquid non-solvent for the binder, the dispersion is heated to volatilize the solvent of the solution, soften the binder and activate the blowing agent, and the cellular particles are separated from the non-solvent liquid. In another process a solution of the binder, colorant and blowing agent is spray dried in air or another gas, e.g. a polyamide solution in chloroform containing Waxoline Red is spray dried in air at 100-120‹ C. using a blowing agent, such as the morpholine salt of nitro-urea, which is activated at 60-80‹ C. Examples disclose cellular solid inks derived from compositions as follows:-(1) "Versamid" 940 (Registered Trade Mark-polyamide resin), chloroform, "Waxoline" Red O.S. (Registered Trade Mark), a solution in methanol of the morpholine salt of nitro-urea, and methanol and spray dried; (2) TiO 2 , "Piccolastic" A75 (Registered Trade Mark-polystyrene blend), methylene chloride, water, and nonyl phenol ethoxylate surfactant and spray dried; (3) "Piccolactic" A75, pale solid coumarone resin, pale liquid coumarone resin, TiO 2 , "Waxoline" Red O.S. chloroform dispersed in glycerol and heated; (4) "Versamid" 940, toluene, i-propanol, spirit black, dicyandiamide in acetone + water and spray dried.
Patent GB-1451516-A (GB)
Title: Method of and apparatus for forming electrostatic latent images
IPC: B41M1/42
Filed: 1974-09-05
Abstract: 1451516 Electrostatic printing FUJI PHOTO FILM CO Ltd 5 Sept 1974 [7 Sept 1973] 38888/74 Heading G2H Printing element 1 comprises an insulating base 2 and an electrically conductive surface layer 3, which is locally removed to reveal imagewise areas 4a, 4b of the base. In use the element is electrically charged to form a developable image on the areas 4a, 4b, and build-up of potential differences on the remaining sections, 3a, 3b, 3c of layer 3 is prevented by earthing them both during and after charging. Preferably coating is carried out by diagonal wires 15a, by a mesh of wires or by a succession of rollers as the printing element is fed between feed drum 10 and a corona charger. Earthing is also carried out by conductive infeed and outfeed rollers 14 and 16, which contact the surface of the printing element as it passes them.
Patent GB-887748-A (GB)
Title: Dihydroxy steroids
IPC: C07J5/00
Filed: 1959-11-17
Abstract: The invention comprises compounds having the formula <FORM:0887748/IV (b)/1> in which R is a lower alkanoyl radical <FORM:0887748/IV (b)/2> is the trivalent radical <FORM:0887748/IV (b)/3> or <FORM:0887748/IV (b)/4> and -C1-C2- is the divalent radical -CH2-CH2- or -CH=CH-and a process for preparing 16a  17a -dihydroxy steroids of the pregnane series characterised by treating a 16b -hydroxy (or alkanoyloxy)-17a -hydroxy (or alkanoyloxy) steroid of the pregnane series with a base e.g. an alkali metal hydroxide an alkali metal carbonate an alkali metal bicarbonate or an alkali metal alkoxide.  The starting 16b -alkanoyloxy 17a -hydroxy steroids may be obtained by reacting a 16a -epoxy steroid with an alkanoic acid and an acidic reagent, e.g. a mixture of sulphuric and acetic acids.  Specification 824,351 is referred to.
Patent GB-361166-A (GB)
Title: Improvements in the manufacture of bricks or shapes
IPC: C04B33/22
Filed: 1930-12-29
Abstract: In the manufacture of bricks and shapes from fireclay or shale, the raw material is first roasted at about 700 DEG  C. to remove carbon, sulphur, and water, and is then compounded with plastic clay, moulded or shaped, and fired at a high temperature, e.g. 1550 DEG  C.  The atmosphere in which the roasting is effected may be continuously or intermittently oxidizing, or alternately oxidizing and reducing.
Patent GB-1422311-A (GB)
Title: Gridded convergent flow electron gun
IPC: H01J23/065
Filed: 1973-08-17
Abstract: 1422311 Beam discharge tubes VARIAN ASSOCIATES 17 Aug 1973 [24 Aug 1972] 39038/73 H1D An electron gun comprises a thermionic cathode with a concave base member 2 (e.g. Ni) with individual concave oxide coated emitter surfaces (17), accelerating electrode 4, multi-apertured control grid 6, and apertured shadow grid 18 (e.g. of Ni), being disposed in nominal contact with the concave surface of the cathode emitter whereby a relatively poor thermally conductive path is provided to allow the shadow grid to operate at a lower temperature than the cathode emitter, the shadow grid and cathode emitter being at the same potential for inhibiting thermionic emission from underlying regions of the cathode and for focusing the individual beams, the shadow grid and cathode emitter base member being of the same thermal expansion coefficient. Control grid 6 may be of Mo or W, of axial thickness 0À020 inch, and 0À039 inch from surface 7; electrode 9 facilitates focusing, is at cathode potential and is brazed to beryllia ceramic insulator 11, while concentric heat shield 12 supports cathode 2 from electrode 9 via sleeve 13. Cathode heater element 14 is potted in electrically insulative thermally conductive structure 15 (e.g. ceramic) and heats the cathode to 800 C., grid 18 preferably being 50 to 100 C. cooler. In fabrication, surfaces 7 are coated with sintered Ni powder followed by oxide-emissive material (e.g. Ba and Sr oxides), the web-like islands cleaned, and shadow grid 18 nominally contacted, the grid being spot-welded or laser welded at places around the periphery and optionally at a number of points to face 7. (e.g. at six or seven points). Grid 18 surface facing member 2 is preferably polished to facilitate heat reflection, and is of thickness to provide electrostatic focusing of the individual beamlets through grid 6 in a substantially non-intercepting manner (e.g. 0À08% interception), Applications include switch tubes, R.F. tetrodes, pentodes, and linear beam Á-wave tubes.
Patent GB-1018782-A (GB)
Title: Improvements in spacing devices for the windings of transformers and reactors
Inventor: RITCHIE DAVID MALCOLM
IPC: H01F27/30
Filed: 1960-11-14
Abstract: 1,018,782. Transformers and reactors. BRUCE PEEBLES & CO. Ltd. Jan. 31, 1962 [Nov. 14, 1960], No. 39070/60. Heading H1T. To provide axial and radial air ducts, axially displaced coils 11 of a transformer or reactor are mutually spaced by blocks 13 which extend inwardly to a former or inner winding 12 from which they also space the coils. Blocks 13, several of which may be superimposed and which may be rectangles of porcelain, have in them slots which extend inwardly of the coils to receive locking strips 15 of a resilient material such as silicon bonded glass or silicon bonded electrofine asbestos paper which strips extend axially between successive blocks 13. The slots may extend to within different distances of the two ends of each block 13 which, on reversal, can be used with two different radial spacings.
Patent GB-1344426-A (GB)
Title: Taping machine
Inventor: VASCOTTO M
IPC: B65B13/10
Filed: 1972-08-22
Abstract: 1344426 Banding machines HALM INSTRUMENT CO Inc 22 Aug 1972 [14 Oct 1971] 39099/72 Heading B8C A tape T is fed by a chain driven clamp 13 around pivotally mounted fingers 6-9 encircling a package P, the clamp 13 is stopped after each cycle by a stop mechanism 54, the fingers 6-9 are retracted, the tape T is tightened round the package by outwardly pivoting an arm 5 and roller 4 guiding the tape and by reversely-driven snub rollers 56, 57 and the tape is heat-sealed by a heater 12 and cut by a knife 11. The clamp 13 then releases the tape, the package P is removed and the end of the tape is fed to the clamp 13 by a tape feeder 14, when a new cycle begins. The stop mechanism 54, the clamp 13, the fingers 6-9, the arm 5, the snub roller 56, the heater 12 and the knife 11 are controlled by cams 52, 13a, 51, 5a, 50, 12a and 11a respectively, which are mounted on a cam-shaft 40 and actuate rocker arms mounted on shafts 41 and 42. The camshaft 40 is intermittently driven by a continuously driven toothed wheel 45, the camshaft 40 carrying a fixed arm 43 having a pivotable claw 44 which engages the toothed wheel 45 and is disengaged therefrom at 180 degree intervals by solenoid-actuated latches 47 and 48, latch 47 being released upon release of the tape from the clamp 13 at the start of each cycle and latch 48 being released manually to retract the fingers &c. after a package P is placed in position. The chain 1 carrying the clamp 13 is driven through a clutch 53 by a continuously driven motor 55, the clutch being disengaged by the stop mechanism 54 at the end of each cycle and closing a safety switch 36 in the operating circuit.
Patent GB-992734-A (GB)
Title: Improvements in or relating to novel trans-3-phenylcyclobutylamines
Filed: 1962-10-16
Abstract: The invention comprises trans-3-phenylcyclobutylamine compounds of the formula <FORM:0992734/C2/1> (wherein R1 and R2 are hydrogen or methyl) and acid-addition salts thereof.  They may be prepared by reducing diethyl phenylmalonate to 2-phenylpropane-1,3-diol, coverting this to the di-p-toluenesulphonate, reacting this with diethyl malonate to give diethyl 3-phenylcyclobutane-1,1-dicarboxylate, saponifying this to 3-phenylcyclobutane-1,1-diarboxylic acid, decarboxylating this and chromatographically separating trans-3-phenyl-cyclobutane-carboxylic acid and converting this via the mixed anhydride with ethyl chloroformate and then the azide by the Curtius reaction to trans-3-phenylcyclobutylamine. This may then be methylated with formic acid and formaldehyde to give the dimethyl compound or formylated to give the N-formyl derivative, the sodio derivative of which may be alkylated with methyl iodide to give the N-formyl-N-methyl-derivative which on hydrolysis gives the monomethyl compound.  The free amine may also be prepared by degrading 3-phenylcyclobutane-1,1-dicarboxylic acid to 3-phenylcyclobutanone reducing this to 3-phenylcyclobutanol, converting this to the p-toluenesulphonate, treating this with sodium azide and reducing the azide so formed.  Examples are given, and a list of salt-forming organic and inorganic acids, including 8-haloethophyllines, is also provided.  Reference is also made to resolution into d- and l-trans isomers.  The compounds of the invention, which are stated to be anorectics, may be made up into pharmaceutical compositions with suitable carriers.  Tablets, lozenges, capsules, powders, solutions and suspensions are referred to.
Patent GB-345346-A (GB)
Title: Improvements in and connected with apparatus for use in the application of closure devices to cartons
IPC: B65H1/04
Filed: 1929-12-23
Abstract: 345,346. Applying lids to cream &c. cartons. HOWE, W. J., Priory Farm Dairy, St. James' Street, Taunton, Somersetshire. Dec. 23, 1929, No. 39281. [Classes 18 and 125 (ii).] Apparatus for use in applying lids to cream or like cartons, comprises a number of cylindrical vessels 2 open at their upper ends and detachably connected to a base 1, each vessel being formed with a slot or opening 5 in one side extending through the rim of the vessel so as to expose the peripheries of the discs 4 stacked therein and to facilitate their removal. One or more members 7, detachably connected to the base 1, pass through apertures in the cylinders to hold them in position, distance-pieces 10 being interposed.
Patent GB-916250-A (GB)
Title: Manufacture of titanium dioxide pigment
Inventor: NELSON EARL WILLIAM
IPC: C01G23/07
Filed: 1959-11-20
Abstract: <PICT:0916250/III/1> <PICT:0916250/III/2> Titanium dioxide is formed by supplying a preformed homogeneous mixture of titanium tetrachloride and oxygen at a temperature below 700 DEG C. to a combustion space through which it flows substantially uniformly so that the average speed of the combustion mixture is between two thirds and four thirds of its axial speed.  The walls of the reaction chamber are preferably formed of porous refractory and an inert gas or chlorinating is passed transversely therethrough to prevent adhesion of titanium dioxide particles.  According to a modification, the preformed homogeneous mixture of titanium tetrachloride and oxygen is fed into a reaction chamber directly against an opposing column of gas, which may be inert or combustible or the same, and the combined stream of gas is withdrawn at their junction.  As shown in Fig. 1, a reaction vessel is provided with porous walls 5 through which a purge gas can be passed from line 10.  Above is a smaller nucleating section provided with porous walls 3 through which a purge gas is fed through line 9.  A reacting gas mixture is fed through a line 12 into a turbulence suppressor 13 formed of nesting aluminium tubes.  The nucleating zone and the reaction zone are joined by a porous disc 4 which is flushed on its inside by purging gas. Suitable purge gases are ammonia, nitrogen oxide, water vapour or gases forming water vapour on combustion, such as ethyl acetate, butane, butanol, diethyl ether or diethyl ketone or preferably carbon monoxide.  Purge gas, admitted through the pipe 10 to the lower reaction zone, may be titanium tetrachloride, (liquid or gaseous), chlorine, carbon monoxide, carbon dioxide or the noble gases.  A sight port 21 is provided, alternatively an apparatus as shown in Fig. 3 may be employed where two opposing tubes 123 and 124 are supplied, by tangentially arranged pipes 105 and 106, with fuel or reactant gases which move with a slow rotary motion.  Screens 111 to 122 ensure a uniform gas velocity.  The gases meet in a cooled reaction space bounded by a jacket 129. The gases fed to the opposing tubes 123 and 124 may be the same, i.e. a mixture of titanium tetrachloride and oxygen, or the opposing stream may be a mixture of chlorine and carbon dioxide, carbon monoxide and oxygen, or an inert gas such as nitrogen. Fuel gases referred to include hydrogen, volatile hydrocarbons, esters, ketones and alcohols, but carbon monoxide is preferred. The necessary oxygen for combustion is also supplied and it is suggested that ozone be included.  Rutile production, favoured by a high flame temperature, may be promoted by the addition of aluminium chloride, and other metal chlorides such as silicon, vanadium, nickel, zinc, antimony or zirconium chlorides; lower titanium chlorides may be added.  Reference has been directed by the Comptroller to Specification 764,084.
Patent GB-943080-A (GB)
Title: Refrigerators
IPC: F25D11/02
Filed: 1962-10-18
Abstract: 943,080. Refrigerators. GENERAL MOTORS CORPORATION. Oct. 18, 1962 [Nov. 13, 1961], No. 39423/62. Heading F4H. A refrigerator comprises a freezer compartment 11 and a storage compartment, the storage compartment having a door 14 which carries a hydrator 38 such that when the door is closed the hydrator closes the freezer compartment. As shown, the refrigerator is divided into upper and lower food storage compartments by a slidable drawer 52. The upper compartment includes freezer 11 which is formed by a C- shaped evaporator 64. An L-shaped door 14 hinged at 36 closes the upper compartment and carries a hydrator 38 pivoted at 44, such that when door 14 is closed the hydrator is closed by the horizontal portion 34 of the door and the hydrator closes the opening in the evaporator 11. The door part 34 carries ribs 76 which form air passages over the hydrator. The lower food storage compartment has a door 12 formed with shelves 16, 18 which are narrowest at the hinge end of the door, and shelves 20, 22 which are complementary to the door shelves 16, 18, and are pivoted so as to be able to swing out from the lower compartment. The height of shelves 20, 22 can be adjusted. The refrigerator is equipped with magnetic door seals 90, and a light switch is operated by opening the door 12. The space between inner liner 88 and outer shell 86 is filled with polyurethane foam insulation impregnated with monofluoro-trichloromethane.