baber/WOPTO huggingface dataset:
Patent GB-1521022-A (GB)
Title: Leaf spring weighing scale with optical detector
IPC: G01G3/08
Filed: 1977-02-01
Abstract: 1521022 Photo-electric weighing apparatus PITNEY BOWES Inc 1 Feb 1977 [5 Feb 1976] 04087/77 Heading G1A Weighing apparatus suitable for weighing envelopes comprises an envelope tray 22 supported by leaf-springs 28, 30 and carrying on its underside a first grating 54, which because of the spring arrangement moves substantially vertically, with minimal lateral displacement, when a letter is placed on the tray. Movement of the grating is sensed by a photo-electric apparatus carried on a U-shaped support 36, which is fixed to the mounting frame (32) of the apparatus. Light from source 64 is directed through the grating 54 and via a second grating 46 whose lines are angled with respect to three of grating 54, to a pair or linear array of photo-cells 72. The sleeve 50 mounting grating 54 is axially and angularly adjustable. Angular adjustment of the disc 76 mounting the photo-cells is also possible so as to match the spacing of the MoirÚ fringes which are formed as vertical bands by the two gratings. The horizontal grating lines of 54 extend substantially further than the maximum extend of the photo-cell array, so as to allow for any sideways movement of the grating 54.
Patent GB-353829-A (GB)
IPC: B23B5/10
Filed: 1931-02-10
Abstract: 353,829. Shaping rolls for rolling- mills. MANNESMANNROHREN-WERKE, 1B, Berger Ufer, Dusseldorf, Germany. Feb. 10, 1931, No. 4157. Convention date, Feb. 15, 1930. [Classes 83 (ii) and 83 (iii).] In machining the pass grooves of rolls such as those used in Pilger rolling mills, the roll is shaped by a tool which moves in a curved path substantially in a plane containing the axis of the roll which is fed by rotation of the roll between successive cutting strokes. Two rolls arranged on parallel axes may be machined simultaneously by a single tool 1 which is mounted in a tool-holder 2 which is slidable radially in the enlarged upper portion of an arbor 8 driven from a motor 3 through bevel gearing 5, 6, and spur gearing 7. Radial movement of the tool slide is effected by means of a rack 10 engaging a pinion 11 actuated by a vertical rack-bar 12 which carries a transverse pin 13 secured to a vertically movable cage 15. The cage carries rollers 16 coacting with a ring member 17 and with opposed segmental members 18. The ring member is carried by a non-rotary holder 19 which is internally threaded and is moved vertically by means of a threaded member 20 driven by a worm 21 connected through bevel gearing, Fig. 4, with a spindle 28. The segmental members 18 are pivoted at their ends to the holder 19 and may be moved vertically by means of threaded spindles 30 driven by worm gearing 32 and bevel gearing, Fig. 4, from a spindle 37. The roll profile may be as shown in Fig. 7, the tool being located between two rolls arranged as shown in Fig. 2. During the cutting of the circular portions of the grooves the tool is controlled by the ring member 17 which has a purely rotary movement imparted by the arbor 8. The roller is slowly rotated during the cutting and the depth feed of the tool required to obtain the roll profile shown in Fig. 7 is obtained through the vertical movement of the ring 17. As the cutting edge of the tool reaches an inclined portion at the side of a roll groove, the rollers 16 move on to the segmental members 18 which move the tool holder radially of the arbor 8 and modify the tool rotation so as to produce straight line cuts at the sides of the groove. Leaving the straight portion of one roll groove the tool passes on to the straight side portion of the other roll groove after which the rollers again pass on to the ring 17 to cut the circular part of the second roll groove. The inclination of the side portions of the roll groove is varied at different points along the groove by the movement of the segments 18 effected by the worm gearing 32. Each pair of headstocks 38 may be moved laterally by means of a longitudinal shaft 44 carrying worms 43 connected to adjusting screws 39.
Patent GB-607664-A (GB)
Title: Improvements in synthetic estromimetic agents
IPC: A61K31/56
Filed: 1946-02-11
Abstract: A synthetic estromimetic agent is obtained by admixing dimethoxy diethyl stilbestrol and diethyl stilbestrol, preferably in the ratio of substantially two to three.  The admixture may be formed by the partial demethylation of dimethoxy diethyl stilbestrol after the normal method of producing diethyl stilbestrol from the aforesaid compound.  The composition is administered intramuscularly, preferably in an oil vehicle, e.g. corn or sesame oil and with the addition of phenol or chlorbutanol.
Patent GB-401645-A (GB)
Title: Improvements in and relating to anthraquinone vat dyestuffs
Filed: 1932-02-12
Abstract: Relates to the production of ketonic mono derivatives of a dibenzanthrone and to oxidation products of the latter.  A "ketonic mono derivative" is a derivative wherein one other nucleus is attached to the dibenzanthrone nucleus through one or more linkages, and they are prepared by condensing a dibenzanthrone or a 2.2<1>-dibenzanthronyl with organic acids, acid anhydrides or acid halides; a condensing agent may be present such as aluminium chloride alone or admixed with another metal chloride, particularly the chloride of another metal such as antimony trichloride.  Such condensation is illustrated in examples wherein dibenzanthrone is condensed with (1) acetic anhydride (or butyric, propionic, malic, fumaric anhydrides), (2) benzoic anhydride, (3) p-nitrobenzoyl chloride (the product may be reduced to the corresponding amino derivative by means of sulphide or hydrosulphite), (4) phthalic anhydride, (5) 1-chloranthraquinone-2-carboxylic acid chloride, and (6) 1.9-anthrathiazole-2-carboxylic acid chloride.  Oxidation of these "ketonic mono derivatives" appears to introduce a keto group or groups into the nucleus; mild reducing agents convert such group into the more stable hydroxyl group which can be alkylated to give fast green vat-dyes.  Oxidation may be performed with sulphuric acid and manganese dioxide, and sodium bisulphite is a suitable mild reducing agent for preparing the stable hydroxy compound.  Further examples illustrate the oxidation of the products of 1, 2, 3, 4 and 6 above by means of manganese dioxide and sulphuric acid, and the stabilisation of the products in the enolic form by treatment with sodium bisulphate; these dye in yellowish-green shades from the vat.  The products are alkylated in the ordinary way or the alkali metal salt of the hydroxy compound is first formed by reacting with an alkali metal hydroxide or carbonate, and the latter is then alkylated either as such, or in the reduced anthranol form, for example by means of dimethylsulphate.  Further examples illustrate the methylation of the above derivatives to give products dyeing green shades.  The methylated oxidation product derived from (4) above dyes rayon from a weak alkaline hydrosulphite vat.  Specification 245,165, [Class 2 (iii), Dyes &c.], is referred to.
Patent GB-961403-A (GB)
Title: Improvements in or relating to windows
Inventor: HIRST CHARLES EDWARD
IPC: F16F7/04
Filed: 1961-02-03
Abstract: 961,403. Ships' windows; clamps; stays. BECKETT, LAYCOCK & WATKINSON Ltd. Feb. 2, 1962 [Feb. 3, 1961], No. 4242/61. Headings EIJ, E2B and E2F. A ship's window 11 pivoted along its lower edge to a fixed frame 19 has a stay comprising two parts 40 hinged together at 43 and pivoted to the window and frame, respectively, at 58, 41, the stay having a separable pivotal-sliding connection with a link 46 pivotally connected at one end to either the frame (as shown) or the window so that two ranges of opening movement are possible according to whether the pivotal-sliding connection is separated or engaged. The connection is preferably formed by engaging the pivot 43 in a slot 47 in the link, a nut 44 being provided to clamp the window in any desired open position. The window hinges 15 permit limited movement of the window towards and away from the frame for the purpose of pressing a rubber sealing strip fitted in a groove 27 in the window edging 12 against a lip 26 on the frame. The pressure is applied by four clamps each comprising a pin 31 pivoted at 33 to the frame and carrying a collar 34a slidable on the pin and formed with a groove 35 which is urged by a nut 34 into engagement with a lip 37 around a keep strip 14 which holds the window pane in the edging 12. The pin 31 may be biased outwardly away from the window by a spring (not shown) surrounding the pivot 33. The window is counterbalanced by a spring motor of the type claimed in Specification 889,334, comprising a spring 54 rigidly attached to a quadrant 52 pivoted to a bracket 53 on the window and coiled freely around a cylinder 55 attached to a bracket 56 on the frame. An arm 57 is pivoted at its ends to the quadrant and to the bracket 56, respectively, so that as the window is lowered the spring is reverse-wound on to the quadrant and unwound from the cylinder 55.
Patent GB-789847-A (GB)
Title: Hydrogen-treating catalytic naphthas
IPC: C10L1/06
Filed: 1956-02-10
Abstract: The anti-knock characteristics of a catalytically cracked naphtha are improved by segregating from the naphtha a fraction boiling in the range 65-115 DEG  F. and treating the fraction with hydrogen to saturate from 30 to 100 per cent of the olefinic bonds.  The hydrogen treatment is preferably effected in the presence of a hydrogenation catalyst such as cobalt oxide, molybdenum oxide or cobalt molybdate supported on an adsorbent carrier at a temperature of 500-800 DEG  F. at a pressure of 25-500 p.s.i. at throughputs of 1-20 v./v./hour and a minimum hydrogen consumption of 500 S.C.F. per barrel of feed.  The naphtha may be fractionated into a first fraction boiling below 65 DEG  F., a second fraction boiling in the range 65-115 DEG  F., a third fraction boiling at 115-250 DEG  F. and a fourth fraction boiling above 250 DEG  F., the second fraction hydrogenated to obtain an olefin saturation above 30 per cent, the fourth fraction hydrofined to obtain a maximum bromine number reduction of 20 per cent, and the third fraction blended with the treated second and fourth fractions.  As a modification the second fraction is mixed with a hydroforming feed and the hydrogenation of the second fraction is conducted concomitantly with the hydroforming of the hydroforming feed by treating the mixture of the second fraction and the hydroforming feed in a hydroforming zone with hydrogen under hydroforming conditions.
Patent GB-348566-A (GB)
Title: Improvements in and relating to the moulding of rubber articles
IPC: B29C41/14
Filed: 1930-02-07
Abstract: 348,566. Moulding hollow rubber articles by dipping. SCHMID, Inc., C. J., 423, West 55th Street, New York, U.S.A. Feb. 7, 1930, No. 4253. Convention date, Feb. 7, 1929. [Class 87 (ii). ] A former for producing hollow rubber articles by a dipping process comprises a spindle 13 fast in a base 21 and provided with a wooden core 10 pinned at 12 to a sprocket 11 whereby the core may be rotated. Washers 15, 17 prevent axial movement of the core. The former 20 is of glass and abuts against the sprocket, a cork, rubber, or other resilient buffer 18 being interposed between the core and the former. The buffer may be a split sleeve and longitudinal strips of cork may be placed between the core and the buffer to expand the buffer. In a further modification, the buffer and core may be in one piece of resilient material. The joint between the former and the sprocket may be rendered watertight by cement &c.
Patent GB-737162-A (GB)
Title: Improvements in or relating to electron discharge tubes
Inventor: FREEMAN GEORGE STANLEY PERCIVA
IPC: H01J5/20
Filed: 1951-02-22
Abstract: 737,162. Glass-metal seals. CINEMATELEVISION, Ltd. Feb. 22, 1952 [Feb. 22, 1951], No. 4304/51. Class 36. [Also in Group XL (a)] A method of cementing together component members of the envelope of an electron discharge tube such as a C.R.T., one of which at least is non-metallic, consists in assembling the members in their correct relative positions and wiping on at the region of contact of the members metal solder having a melting-point of about 120‹ C., e.g. " Cerroseal," of the kind which wets and adheres strongly to the materials of which the members are formed so that a vacuum-tight seal is obtained. The component members may have different coefficients of expansion and can be quartz and glass, metal and glass, or ceramic material and metal or glass. The glass can be a borosilicate glass and the metal nickel, copper, stainless steel or alloys known under the Registered Trade Marks " Eureka " and " Nichrome." The members forming the envelope are baked in vacuum before the cementing operation and those portions of the members which are distant from the region of contact are baked or flame-torched after the cementing operation and during the final evacuation of the envelope.
Patent GB-114647-A (GB)
Title: Improvements in or relating to Slip Hooks.
Inventor: SMITH ALFRED EDWARD
IPC: B61G1/02
Filed: 1917-03-26
Abstract: 114,647. Smith, A. E. March 26, 1917. Hooks, slip.-A hook A is pivoted at B between side plates C and is normally secured in position by a block D having a rounded surface M engaging a corresponding recess in the hook and which is controlled by a lever G, Fig. 3, connected to a pin mounted in the parts a, b. The hook, after release of the load, is returned to its position on moving the lever G by the action of the inclined sides N of the block on the tip of the hook. Pins E, F limit the movement of the hook.
Patent GB-890595-A (GB)
Title: Improvements in or relating to a handling device for pipes or similarly shaped bodies
IPC: F27B9/22
Filed: 1960-02-08
Abstract: 890,595. Conveying furnace charges. COMPAGNIE DE PONT-A-MOUSSON. Feb. 8, 1960 [Feb. 24, 1959; Nov. 23, 1959], No. 4326/60. Class 51 (2). [Also in Group XXX] Apparatus for carrying pipes &c. through a heat treatment furnace F comprises a pair of carrier chains A having pivotally mounted, inverted U - shaped shoes 7 defining a plane carrier surface, and driving chains B with projections 13 engaging the pipes T resting on said chains A, the latter being driven by sprockets 1 from a motor 21. Chains B are driven intermittently by sprockets 11 from a motor 22, the drive including a wheel 25 with one or more teeth 26 engaging spaced lugs 27 on one of the sprockets. Chains A and B have rollers engaging tracks 5 and 17 respectively in the furnace hearth S. Movement of chains A in the direction f<SP>2</SP> causes pipes T in contact with projections 13 to rotate, and the intermittent movements of chains B in the direction #<SP>1</SP>  advance said pipes through the furnace. The chains may be moved in the same direction. In a modification, Fig. 4 (not shown), the pipes &c. are disposed on pairs of loose rollers engaged by projections on the driving-chains B.
Patent GB-855777-A (GB)
Title: Improvements relating to turbine and compressor blades
Inventor: KENT NELSON HECTOR
IPC: B23P15/02
Filed: 1958-02-10
Abstract: 855,777. Making turbine and like blades; extruding. ROLLS-ROYCE Ltd. Feb. 10, 1959 [Feb. 10, 1958], No. 4334/58. Classes 83 (2) and 83 (4). [Also in Group XXVI] A turbine or compressor blade, Fig. 10, having axial passageways 12, 27, 28 for a heating or cooling fluid such as air, is made by drilling holes 11, 12, 13, 16, 17, 20 in a billet 10 with at least two of the holes 11, 16, 20 overlapping, filling the holes, extruding the billet with lubrication to form a blade section of aerodynamic shape, whereby the holes are elongated, and subsequently removing the filler. The billet may be of nickel-chrome alloy plated with nickel. Blind holes 11, 12, 13 are drilled first and the holes 11, 13 filled with mild steel. Overlapping holes 16, 17, 20 are then drilled and filled together with holes 12. Alternatively all the holes are drilled and then filled. Hardened inserts 33-35, Fig. 12 (not shown), may be used to facilitate drilling the overlapping holes. The nickel-plated billet is lubricated with graphite during extrusion as described in Specification 828,339. The filler is subsequently removed, the blade provided with a root and root platform and a tip platform, and holes drilled through the root to meet the cooling passageways. Specifications 826,498, 833,522, 833,523 and 855,776 also are referred to.
Patent GB-589597-A (GB)
Title: Improvements in or relating to toys for children
IPC: A63H7/04
Filed: 1944-03-10
Abstract: 589,597. Toys. ELLISDON, E. G. March 10, 1944, No. 4462. [Class 132 (iii)] A toy tortoise has a cranked axle 16 secured to the front wheels so as to give a projecting and retracting and an up-and-down movement to the head and neck member 11 secured to the crank and resting on the edge 19a of an opening in the body. The invention may be applied to a gun projecting from a tank. Specifications 383,128 and 395,606 are referred to.
Patent GB-576113-A (GB)
Title: Improvements in and relating to aircraft undercarriages
IPC: B64C25/22
Filed: 1944-03-11
Abstract: 576,113. Retractable undercarriages. BOULTON PAUL AIRCRAFT, Ltd., BATCHELOR, .J. W., and CLARK, B. F. March 11, 1944, No. 4571. [Class 4] A retractable undercarriage comprises an oleo-pneumatic shock-absorber which is compressed during retraction, liquid being transferred from the shock-absorber to a chamber in the hydraulic retracting jack, said chamber containing a piston movable with the operating piston to admit the transferred liquid into the chamber during retraction and to return the liquid to the shock-absorber during extension of the undercarriage. In the form illustrated, the undercarriage is in the form of a parallel linkage 1, 2, 3, 4, the limb 3 being hinged to the airframe structure at 5 and an oleo-pneumatic shock-absorber 6 is connected between the hinge 5 and the member 4. A telescopic tie 8 or equivalent member is connected between the member 2 and a point Z offset from the hinge axis 5, such that during retraction, effected by a hydraulic jack 7, the parallel linkage is deformed to shorten the length of the undercarriage for stowage. During retraction, liquid in the shock-absorber 6 is transferred to a chamber 7a forming an extension of the main jack 7, an auxiliary piston 10 connected to the operating piston 9 moving with the latter to admit the liquid to, and return it from, the chamber 7a. Liquid transfer is normally prevented by a spring- loaded ball valve 12, the latter being opened during retraction by mechanical means or by a pilot hydraulic jack.
Patent GB-1169302-A (GB)
Title: Fuel-Injection Pump for Multi-Cylinder Internal Combustion Engines
IPC: F02M59/10
Filed: 1967-01-31
Abstract: 1,169,302. Cams. FIAT S.p.A. 31 Jan., 1967 [4 Feb., 1966], No. 4632/67. Heading F2K. [Also in Division F1] In a fuel injection pump having a multi-lobe cam 2 actuating a pumping member 1 through a lever 8 coupled to the member 1, the lever oscillates about a fixed pivot 9 and equal curvature cam engaging surfaces on the lever ensure positive reciprocation of the pumping member. The cam engaging surfaces may be provided on lever rollers 4 and 5 or on a lever roller (4), Fig. 5 (not shown), and a portion (24) fo the lever body. The axis A of the cam, the axes of curvature D and E of the cam engaging surfaces and the axis of the fixed pivot 9 define a quadrangle ADGE which, at the mid-position in the stroke of the pumping member, has an angle # at the axis A which is equal to half the angle (α), Fig. 1 (not shown), between the planes of symmetry (AB, AC) of two adjacent cam lobes.
Patent GB-490301-A (GB)
Title: Washing machine
IPC: D06F15/00
Filed: 1937-02-16
Abstract: 490,301. Washing machines. APEX ELECTRICAL MANUFACTURING CO. Feb. 16, 1937, No. 4677. Convention date, Feb. 27, 1936. [Class 138 (ii)] The oscillating agitator of a washing-machine is in the form of a truncated pyramid having stepped sides 50. A tube 56 passes through the axis of the pyramid and is secured thereto. The upper solid portion of the tube is formed with an aperture 61 through which a plug 64 secured to a cap 62 slides. The plug may be retained in an elevated or lowered position by means of a spring-pressed ball 66 engaging a recess 65 therein, and when the plug is in the latter position it engages a corresponding recess 43 in the upper end of a block 42 secured to the oscillating shaft 24.
Patent GB-630447-A (GB)
Title: Improvements in and relating to turbulence-combustion chambers for diesel engines
IPC: F02B19/08
Filed: 1947-02-18
Abstract: 630,447. Combustion chambers for direct-injection engines. SKODA WORKS. Feb. 18, 1947, No. 4690. Convention date, March 22, 1946. [Class 7 (iii)] In a turbulence combustion-chamber 3 for a diesel engine, arranged eccentrically in the cylinder head and in the form of a hemisphere and a cone arranged base to base, part of the cone having been cut away from the apex to the base to provide an inlet port 2 opening tangentially .into the chamber 3, the cross-sectional area 4 of the port 2, measured perpendicularly to the length of the inlet port and as defined by the unchamfered portions of the walls of this port or the extensions thereof, is one-fifth to one-seventh of the greatest cross-sectional area of the chamber 3, the opening of the inlet port 2 at the bottom of the cylinder head being expanded' with a gradually-increasing chamfer, the greatest chamfering 7 being at that part of the inlet port 2 which is nearest to the axis of the cylinder 1. The radius R of the chamfering 7 is greater than half the width of the cross-sectional area 4 of the port, and the thickness of the wall 6 at a point opposite the chamfering 7 is less than the width of the crosssectional area 4. The Specification as open to inspection under Sect. 91 states that the chamber is substantially spherical. This subject-matter does not appear in the Specification as accepted.
Patent GB-924315-A (GB)
Title: Bowl-type scraper vehicle
IPC: E02F3/64
Filed: 1962-02-07
Abstract: 924,315. Earth-moving bowl-type scrapers. GENERAL MOTORS CORPORATION. Feb. 7, 1962 [April 7, 1961], No. 4725/62. Class 68 (1). In a bowl-type scraper an hydraulic ram can swing vertically either the bowl and the apron simultaneously or the apron alone depending on whether the pressure fluid is admitted into the cylinder 86 beneath the piston 90 connected directly at 94 and indirectly through piston 96 telescopically mounted within piston 90 to pivoted levers 54, 68 actuating the bowl and the apron or is admitted into the hollow piston 90 beneath the piston 96.