baber/WOPTO huggingface dataset:
Patent GB-467415-A (GB)
Title: Improvements relating to undercarriages for aircraft
IPC: B64C25/00
Filed: 1935-12-12
Abstract: 467,415. Shock-absorbers. DOWTY, G. H. Dec. 12, 1935, Nos. 34513 /35 and 17906 /36. [Class 108 (iii)] In an aircraft undercarriage of the kind in which alignment of a landing-wheel or equivalent in its appropriate track is maintainec by the torsional stiffness of a tele scopic, shock-absorbing leg carry ing the wheel &c., the leg consists of two telescopic structures, the landing-wheel &c. being carriec by one of the telescoping, tubular parts 7, 9 of one of the structures the other part 7 of which is secured to the aircraft, while the telescoping parts 14, 15 of the other structure are offset from those of the main structure anc act as a guide therefor. As showr the tubes 7, 9 are separatec by a spring 11 which absorbs the landing-shock and the parts 14, 15 comprise tubes rigidly secured to the tubes 7, 9 respec tively, at least at two points, by members 12, 13. The structure 14, 15 incorporates a hydraulic or pneumatic dashpot consisting of a rod 16 which passes through a plug 17 closing the upper end of the tube 15, and carries a piston 18 of smaller diameter than the internal diameter of the tube 15, relative longitudinal movement of the tubes 14, 15 being resisted by flow of fluid through the restricted annular passage around the piston 18. Either structure may act as a shock-absorber and/or as a fluid or friction damper. In a modification, the guide structure comprises a rod pivoted at its lower end to the tube 9 and slidable in a sleeve pivoted to the tube 7. In another construction, the guide structure, comprising telescoping tubes incorporating dampers and shock-absorbing means, is mounted inside the main structure. The guide may consist of a rod fixed to one part of the leg and having a cross-head engaging a slot in a plate fixed to the other part. When arranged outside the main structure, the guide may be hidden by a fairing. To afford increasing resistance to torsion proportionally with compression of the leg, the two structures may be arranged so as not to be parallel with one another.
Patent GB-1032078-A (GB)
Title: Method and apparatus for contouring the surface of a workpiece
IPC: B21H5/04
Filed: 1964-08-25
Abstract: 1,032,078. Rolling gear teeth. KENTOWENS MACHINE CO. Aug. 25, 1964 [Sept. 16, 1963], No. 34687/64. Heading B3M. [Also in Division F2] In a machine for contouring a workpeice surface, a sub-frame 22 is positioned so that a gear blank 26 is out of contact with a rolling tool on a tool head 30 and the tool is to the left of the blank in Fig. 1. The rolling tool engages the work blank below the pitch diameter of an internal gear ring along which the tool rotating pinion engages, thereby producing sliding thereof on that blank when rolling. The tool head 30 is oscillated by a connecting rod 40 and the tool is moved across the blank 26 clear of the right-hand side thereof remaining out of contact with the blank for about 120 degrees rotation of the head 30. During this period a shaft 66 is rotated about 90 degrees, the blank is indexed by the spacing of one tooth and the sub-frame 22 is raised. When the first tooth has been rolled to the required depth, raising of the frame 22 is halted. In an alternative embodiment (Fig. 9, not shown), the workpiece 230 is a segmental gear having three teeth and is mounted on a shaft 232 parallel with the line of movement of a carriage 214. A rack 224 on the carriage 214 engages a pinion on a spindle 220 which supports the tool 258, and the workpiece is indexed, when clear of the tool, by bevel gears 268 driving shafts 266, 232 through a clutch 260 and universal joints 288. The clutch section 264 has peripheral depressions, whose spacing corresponds with that of the workpiece teeth and into which a detent engages (Fig. 10, not shown). A dog 286 on the clutch driving section 262 lifts the detent and allows the driven section 264 to rotate until the detent engages the adjacent depression. A splined sleeve 290 compensates for the linear movement of the carriage 214. When the third tooth has been rolled, the dog 286 lifts the detent out of the end depression, the clutch 260 is engaged for some 270 degrees rotation and a pin 292 engages a gear 294, whereby the workpiece is raised by the action of bevel gears 246, 240 and threaded spindle 238.
Patent GB-1370502-A (GB)
Title: Free-wheel mechanisms
IPC: F16D41/067
Filed: 1972-07-25
Abstract: 1370502 Ratchet clutches SOC ANON FRANCAISE DU FERODO 25 July 1972 [27 July 1971] 34767/72 Heading F2C In a one-way clutch wherein eaged rollers 12 wedge between a cylindrical race 10 and a race 11 having inclined surfaces, an energizing spring 20 arranged between the cage 13 and the race 11 has radially directed portions 25A which engage grooves 35 in side plates 33 to prevent rotation of the latter relative to the race 11. As shown the inclined surfaces are formed on the outer race 11 but may be formed on the inner race. The spring 20 comprises parallel circular portions interconnected by a cross-piece 21 which passes through a radial slot 30 in the cage. The ends 26, 27 of the spring engage holes 28 in the outer race 11.
Patent GB-1163647-A (GB)
Title: The Estimation of Tolylene Diisocyanna in the Atmosphere.
Inventor: REILLY DESMOND ALAN
IPC: G01N31/22
Filed: 1967-07-28
Abstract: 1,163,647. Determining di-isocyanates. IMPERIAL CHEMICAL INDUSTRIES Ltd. 25 July, 1968 [28 July, 1967], No. 34835/67. Heading B1X. [Also in Division Gl] A gas permeable filter paper of predetermined size impregnated with a solution of a soluble nitrite, a coupling agent, a buffer and a dialkyl phthalate in methyl alcohol and water and dried, is used for the estimation of 2:4 and 2:6 tolylene diisocyanates in the atmosphere by a method which comprises passing a predetermined volume of air through the paper, and comparing the colour produced on the paper with calibrated colour standards. The coupling agent may be 2:3-hydroxy naphthoic anilide or 2:3-hydroxy naphthoic mnitroanilide but is preferably 5-hydroxy-3<SP>1</SP>, 4<SP>1</SP>- benzocarbazole-4-carboxy-p-anisidide, and the soluble nitrite may be an alkali metal nitrite such as sodium or potassium nitrite or ammonium nitrite. The preferred buffer is ammonium acetate and the preferred dialkyl phthalate is diethyl phthalate. The preparation of the colour standards using fast pigments is described in the specification.
Patent GB-429818-A (GB)
Title: Improvements relating to mechanism for classifying powdered material by elutriation
IPC: C09C1/16
Filed: 1934-12-06
Abstract: 429,818. Washing powdered materials. KINETIC ELUTRIATORS, Ltd., 11, Southampton Row, and PRANGLEY, A. J., 37, Southgate Road, Islington, both in London. Dec. 6, 1934, No. 3 5 0 6 2. [Class 82 (ii)] In washing-apparatus in which the opening and closing of a valve in a discharge pipe leading from the bottom of the washing vessel is controlled by the resistance offered by the accumulated material to paddles rotating in the lower part of the vessel, the spindle carrying the paddles is extended downwards and the extension is provided with blades or vanes which operate between the paddles and the discharge pipe and are adapted to move material which tends to accumulate at the sides towards the centre of the vessel. In the form shown the heavier material sinks through orifices 5 in a member 6, to the lower part of the vessel 1, an upward current of water being passed, if desired, through the orifices 5 to classify the material. In the lower part of the vessel are rotating paddles 8, curved as shown in Fig. 2 and carried by a spindle 7, mechanism, for example that described in Specification 280,123, [Class 82 (ii)], being provided so that as the resistance to the rotation of the paddles increases due to the accumulation of material in the lower part of the vessel a valve 4 in a discharge pipe 3 is opened. The spindle 7 is extended downwards and carries radial members 9 to which are fixed depending blades or vanes 9<a>, the blades being angled so as to move material from the sides of the part 2 of the vessel towards the centre. The lower part of some or all of the blades 9<a> is set back at an angle to the plane of the upper part so that the lower part tends to force the material down through the valve 4.
Patent GB-301506-A (GB)
Title: Device for greasing mechanically the trunnions of rolling mill cylinders with lubricants kept under pressure
IPC: F16N7/38
Filed: 1928-11-28
Abstract: 301,506. Firquet, H. Dec. 1, 1927, [Convention date]. Force-feed lubricating. -In. rolling mills, lubricant under pressure is supplied to longitudinal grooves c in blocks a, a<1> which bear lightly on the surfaces of the trunnions b, b<1>. The grooves communicate through passages d, e and non- return valves with conduits f, f<1> leading from a mechanical lubricator g driven from the trunnion b through a rod h and pawl-andratchet mechanism j.
Patent GB-1200363-A (GB)
Title: Trim attachment for water craft
Inventor: INGELMAN-SUNDBERG ALF MARTIN M
IPC: B63B39/06
Filed: 1967-07-31
Abstract: 1,200,363. Tabs for trimming and steering. HESSELMAN BIL-AEBO A.B. 31 July, 1967, No. 35116/67. Headings B7M and B7V. A device for adjustably influencing the flow of medium over a surface comprises a tab having its front edge secured to the surface or an extension thereof, a bag mounted between the bag and the said surface or extension and means to expand the bag. In Fig. 3, the device comprises a trimming tab 16 secured at 50 to the undersurface of a boat 12 at the stern 14, a bag 20 and a pitot tube 30 so that water 30 restricted from flowing through the tube by a flap valve 32 flows through a hole 42 into the bag to inflate same. The valve 32 is actuated by a manually operated hydraulic device 44. Fig. 5 shows the rear end of a rudder 80 having a tab 82, 84 on each side with bags 86, 88 respectively between the tabs and the rudder surface and pitot tubes 90, 92 for inflating the bags under the control of manually operated hydraulic devices 98, 100.
Patent GB-337618-A (GB)
Title: An improvement in or relating to grinding pans
IPC: B02C15/14
Filed: 1929-11-18
Abstract: 337,618. Drysdale, J., and Bottomley, A. E. Nov. 18, 1929. Edge-runners and pans and like mills.-In an edge-runner having an inclined grid, the grid segments e constituting the screening surface are supported by upwardly bent arms g extending from a central driving boss b. The screens are curved to form a frustrum of a cone. The arms g may be cast with the boss b and the outer extremity of the arms are flattened to carry a rim f. The grid is secured to the arms by bolts h and the edges of adjoining segments may interlock.
Patent GB-1393039-A (GB)
Title: Preparation of reinforcing amorphous silica
IPC: C08K3/36
Filed: 1972-07-27
Abstract: 1393039 Silica from silicate CANADIAN PATENTS & DEVELOPMENT Ltd 27 July 1972 [27 July 1971] 35148/72 Heading C1A Amorphous silica powder is produced by: (a) preparing seed particles by adding mineral acid to an alkali metal silicate solution containing 1 to 3% by weight of SiO 2  to form a sol. of pH 4À5-6À5 and allowing the sol. to set into an aquagel; (b) diluting and dispersing the aquagel in water to form an aqueous dispersion of aquagel seed particles; (c) mixing the resulting dispersion with an alkali metal silicate solution; (d) adding acid to the mixture at 75-100‹ C. so as to lower quickly the pH to 1-4 and precipitate silica; and (e) separating the silica and drying. The preferred silicate is sodium silicate and the acid may be H 2 SO 4 , HCl or HNO 3 . Prior to drying, the silica may be washed to remove excess salts and slurried with an organic solvent or a surface active agent may be added.
Patent GB-1064918-A (GB)
Title: Settling apparatus
IPC: B01D17/02
Filed: 1965-08-17
Abstract: 1,064,918. Settling particles from fluids. WESTINGHOUSE ELECTRIC CORPORATION. Aug. 17, 1965 [Sept. 16, 1964], No. 35226/65. Headings B1D and BIT. In Fig. 2 liquid enters chamber 14 and flows inwards of one or more stacks 30 of generally frusto-conical baffles (Figs. 4, 5, not shown), the baffles being closely spaced and each having a central aperture whereby cleaned liquid enters perforate tube 26 and a plurality of circumferentially spaced, radially outwardly diverging troughs of V-shaped cross-section whose outer, lowermost ends have sludge exit ports (49), the various ports (49) in different baffles being aligned with sludge tubes 20 and the peripheral portions of the baffles being shaped to admit liquid only at locations circumferentially between the troughs to prevent eddy currents in the lower ends of troughs where solids are settling. Baffles may be stainless steel, butastyrene, polypropylene or P.V.C. In Fig. 2 the liquid receiving tubes 26 of each stack deliver liquid into a chamber 25, while sludge tubes 20 convey largely separated solids into lower chamber 29, and respective siphons 28, 22 carry liquid and sludge thence into chambers 15, 16, annualarly arranged round chamber 14. The outlet elbows 66. 67 of the siphons may be adjustable, and sludge chamber 16 may be partly-divided by triangular blocks 80 of foamed polyurethane (Fig. 6, not shown) between outlets (71). Further gravity separation may occur in chamber 16, clear liquid overflowing into chamber 15. The arrangement of Fig. 7 (not shown) is for separating particles from gases.
Patent GB-466668-A (GB)
Title: Improvements in or relating to picnic-cases
IPC: A45C11/20
Filed: 1935-12-20
Abstract: 466,668. Picnic case convertible into table. SHAKESPEARE, H. T. Dec. 20, 1935, No. 35276. [Class 52 (iii)] [Also in Group XVII] A picnic case for holding crockery and cutlery with or without cooking apparatus and food containers, and folding legs, is fitted with one or more trays e normally fitting within a central compartment d formed by partitions b each of which has a clip attachment f, g so arranged that a tray can be hooked under the curled rim g and be supported by the partition and the box wall so that it may serve as a table. The rim g may be hinged to the portion f and retained by a spring or other catch. The compartment d normally contains food and/or utensils, and the two outer compartments contain vacuum flasks. Alternatively, however, the outer compartments may contain folding legs.
Patent GB-204983-A (GB)
Title: Improvements in and connected with steam generating installations
IPC: F01K1/10
Filed: 1922-12-28
Abstract: 204,983. Babcock & Wilcox, Ltd., (Deutsche Babcock- &-Wilcox Dampfkessel- Werke Akt.-Ges.). Dec. 28, 1922. Controlling and moderating superheat.-In a steam-generating plant comprising a steam and hot-water storage-unit 3 and a superheat storageunit or regenerator 18, which receives heat from the boiler steam and returns it to the saturated steam unit 3, a part of the steam passing from the regenerator on its way to the consumer 2 is taken, under the control of a valve 19, through a coiled pipe 21 or other heat exchanger in the unit 3. Steam from the unit 3 is led through a pipe 6 into the boiler steam-pipe 4. The flow of boiler water into the unit 3 is controlled by a valve 7 operated by a pressure-actuated piston device in pipe 6. The regenerator may be of the kind in which the steam passes through chequer brickwork.
Patent GB-925861-A (GB)
Title: Header for semiconductor device
IPC: C03C27/04
Filed: 1960-10-14
Abstract: 925,861. Transistors. TEXAS INSTRUMENTS Inc. Oct. 14, 1960 [Oct. 23, 1959], No. 35296/60. Class 37. A header unit for a transistor comprises a clad metal shell filled with insulating material and an integral clad metal electrode to which the semiconductor, e.g. germanium, wafer can be attached. As shown, Fig. 1, a dish-shaped shell 10 comprises an inner layer 10b of " Kovar " (Registered Trade Mark) which has thermal expansion properties similar to glass filler 18, and an outer layer 10a of copper, the high thermal conductivity of which aids dissipation of heat from the transistor to an encapsulating can (not shown) which may have a heat sink attached. Leads 20, 22, 24, which may be of " Kovar," pass through the glass filler 18, leads 20, 22 emerging through apertures 14, 16 in shell 10, and lead 24 being soldered to the shell. The electrode 30 is punched and bent from the metal of the shell; alternatively, it may be a projection 60, Fig. 4, formed in the shell. The copper layer of the shell &c. may be covered with a cladding or plating of chemically resistant metal, e.g. Au or Ni, and leads 20, 22 may be plated with Au or Sn. It is stated that the degree of thermal dissipation achieved by the header can be controlled by varying the proportionate thicknesses of the different layers of the shell.
Patent GB-910676-A (GB)
Title: Method of lasting footwear
IPC: A43D21/12
Filed: 1959-02-22
Abstract: 910,676. End-lasting machines. KAMBORIAN, J. S. Feb. 22, 1959 [Sept. 22, 1958], No. 35341/61. Divided out of 901,675. Classes 17 (1) and 17 (2). A method of lasting by adhesive the ends of shoe uppers, comprises moving the lasting margin outwardly and damping it over the wipers, lowering the last so as to stretch the upper on the last and to position it for applying adhesive and then for wiping the margin inwardly over the insole. A last L carrying a stretched upper and insole temporarily attached thereto by pulling over tacks, is supported by a toe rest, a hold-down 24 and a heel clamp. A spreader 26 moves from a position in contact with the wipers 18, upwardly, inwardly over the margin and beyond the pulling- over tack and then downwardly and outwardly thus removing the tack and clamping the margin outwardly on to the wipers. Spreaders 28, 28 operate either side of the central spreader 26. Intermediate clamps 27 move downward into contact with the outspread margin. The last is then forced downwardly. The rear end of the last may now be swung laterally relative to its toe end to remove any stubborn creases. A quick-drying or thermoplastic adhesive is applied to the edge of the insole by a nozzle. The margin is then wiped inwardly over the insole. The method is also applicable to the manufacture of welt shoes, the margin of the upper preferably being impregnated with a stiffening material. The method can be employed in side lasting in addition to end lasting.
Patent GB-789262-A (GB)
Title: Improvements in or relating to electric circuit interrupters
IPC: H01H33/14
Filed: 1955-12-09
Abstract: 789,262. High-voltage switches. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Dec. 9, 1955 [Dec. 20, 1954], No. 35407/55. Class 38 (5). A circuit breaker with co-operating pairs of contacts for establishing a plurality of seriallyrelated arcs within a casing 14, has voltage-distributing impedance means enclosed within a plurality of substantially parallel tubes A ... G disposed outside, and extending axially of, the casing, the tubes being supported by arcuate brackets 48 removably secured to opposite ends of the casing. The upper bracket 48 is bolted at 58 to a strap 57 secured by bolts 59 to the upper bolting ring 60 of the casing. The lower bracket 48 has dowel pins 49 engaging in apertures in the lower bolting ring 51 of the casing, compression springs 50 maintaining the tubes in compression and forming an electrical connection between the lower bracket and ring. Each tube may contain a number of resistance or capacitance elements, the tubes A, G normally containing carbon block resistance elements and the remaining tubes containing ceramic capacitor blocks. The impedance assembly may be connected across all the contacts without intermediate tappings, Fig. 4 (not shown) or with tappings 67 to the mounting bolts 68 of the fixed contact assemblies 69. In the latter case, some of the capacitor elements may be replaced by an insulating filler so that a lower impedance may be provided across the end " breaks." The Complete Specification describes the invention applied to the fluid-blast switch of Specification 759,461.
Patent GB-759818-A (GB)
Title: Improvements in or relating to apparatus for removing a twist from or longitudinallymoving article circular in cross-section
IPC: B21C37/08
Filed: 1954-12-07
Abstract: 759,818. Twisting. WESTERN ELECTRIC CO., Inc. Dec. 7, 1954 [Dec. 8, 1953], No. 35415/54. Class 83 (4). Apparatus for removing a twist from an article 10 circular in cross-section, such as a tube, and particularly a sheath on a cable core, while the article is being advanced longitudinally comprises a carriage 25 rotatable about the article in a direction opposite to the direction of twist therein, and means supported by the carriage 25 to apply a variable torque to the article to remove the twist therefrom. The carriage 25 comprises side members 47, 48 secured at one end to the enlarged inner end 46 of a hollow spindle rotatably supported in a head 17 and secured at the other end to the enlarged inner end 50 of a hollow spindle 51 rotatably supported by a speed-reducing unit 24. The hollow spindle 51 is driven, so as to rotate the carriage, by a reversible motor 23 through worm gearing 57, 56. The article is engaged by two series 20, 21 of resilient rollers; each roller has a spindle the ends of which are journalled in bearing blocks 60 normally seated in recesses 61 of parallel holders 62 through the force of springs 63 mounted on studs 64 carrying nuts 65 for adjusting the spring force. The holders 62 carry screws 67 extending through elongated apertures 68 in the members 47, 48. The ends of the holders 62 carry racks 70 each engaging a pinion 71; the pinions 71 are fixedly mounted in pairs on spindles 72, adjacent pairs of pinions interengaging. A lever 77 is secured to one spindle 72, one end of the lever being connected at 76 to the piston-rod 18 of a fluid cylinder 19 mounted on the carriage 25; the other end of the lever 77 is connected by a rod 80 to a lever 79 secured to a spindle 72 at the other end of the carriage; a spring 82 acts on the rod 80 so as normally to hold the rollers away from the path of the tube. In operation, a unit 11 senses any twist of the article and, responsive thereto, a control unit 14 actuates a valve 15 to admit fluid-pressure to the cylinder 19 to move the rollers 20, 21 into contact with the article and also starts the motor 23 to rotate the carriage 25 in a direction opposite to that of the twist. Specifications 759,817 and 759,819 are referred to.
Patent GB-619274-A (GB)
Title: Improvements in x-ray screens and method of making the same
IPC: G21K4/00
Filed: 1946-11-29
Abstract: 619,274. X-ray screens. UNITED STATES RUBBER CO. Nov. 29, 1946, No. 35423. Convention date, Jan. 5. Drawings to Specification. [Class 98 (i)] An X-ray screen having fine grain layers of metal and of highly uniform thickness comprises a thin film of electro-deposited nickel and a thicker film of electro-deposited lead formed upon the nickel film. A smooth and highlypolished face of a stainless steel plate is cleaned in the manner usual for electro-plating, and a thin layer-less than 0.0005 inch-of nickel of small crystal size is deposited on it, employing at room temperature a plating bath containing. nickel sulphate, nickel chloride and boric acid and having a pH of 5.7. A thicker layer of lead-from 0.001 to 0.06 inches according to the kind of screen required-is electrolytically deposited on this nickel layer, a uniform lead layer being produced by carefully controlling the temperature and strength of the electrolyte and the disposition of cathode and anode. The grain size of the deposited lead, which depends on the rate of deposition, is less than that produced by rolling a lead sheet to the desired thickness. The united layers of nickel and lead are then carefully stripped from the stainless steel plate and attached as by glue to a stiff backing plate of non-X-ray absorbent material, e.g. cardboard or plastic. Two such screens may be used on opposite sides of the film on which the radiograph is made, the front screen having a thinner lead layer than the rear screen.
Patent GB-352875-A (GB)
Title: Method of bundling rod-shaped material particularly metal rods or tubes
IPC: B65B27/10
Filed: 1930-11-27
Abstract: 352,875. Bundling rods &c. HIRSCH, KUPFER-UND MESSINGWERKE AKT.- GES., Messingwerke, near Eberswalde, Germany. Nov. 27, 1930, No. 35718. Convention date, Nov. 27, 1929. [Class 94 (i).] Metal rods, tubes, &c., are bundled by passing rubber rings over them.