baber/WOPTO huggingface dataset:
Patent GB-1223747-A (GB)
Title: Improvements in or relating to bags
IPC: B65D33/10
Filed: 1968-04-17
Abstract: 1,223,747. Seaming non-metallic sheet material. WINDMOLLER & HOLSCHER. 17 April, 1968 [2 May, 1967], No. 18206/68. Heading B5K. [Also in Divisions A4 and B8] A bag of flexible sheet material has one or more carrying handles 1 attached to opposite sides 2, 2<SP>1</SP> of the bag and disposed symmetrically with respect to a plane which is perpendicular to the opposite sides and passes through the mid-points of the longer edges of these sides. The bag may have one handle (Fig. 2) extending generally in the plane with each end attached to one of the wider sides of the bag and an intermediate part forming a grip portion bridging one of the narrower sides of the bag, or two U-shaped handles (Fig. 4, not shown), each being attached by its ends to one of the wider sides of the bag in such a way that a grip portion of the handle formed by the base of the U extends parallel to the longer edges of the wider sides of the bag. Each handle may comprise a strip of paper folded longitudinally several times and reinforced with a thread or fabric insert or be of plastics of high tensile strength. The handles are attached to the bag by adhesive or, if the handles and bag are made from thermoplastics material, by welding. The wider sides of the bag may be reinforced in the region of the handle ends by paper or plastics sheets 4 bonded on the inside and outside of the bag. If the bags are made of multiply material, the individual plies may be connected by spot cementing or spot welding 5 in the region of the handle ends. The length of the grip portion of a handle is such that it does not project beyond the longitudinal edge of the bag when the latter is folded flat (Figs. 1 and 3, not shown).
Patent GB-459051-A (GB)
Title: Improvements in or relating to absorption type refrigerating apparatus
IPC: B32B15/08
Filed: 1935-06-25
Abstract: 459,051. Refrigerating. EWART, J. H., HAWES, W. B., and EWART & SON, Ltd., 346, Euston Road, London. June 25, 1935, Nos. 18216 and 31553. [Class 29] Absorption systems.-The descriptive matter is substantially the same as that described in Specification 458,841, but the claims are directed to the features that the lift tube 16 is heated at a rate automatically proportional to that of the generator tubes 5, and that the vapour from the separator 17 is condensed in the tube 19, and returned to the sump 13 of the separator 10. Specification 458,836 also is referred to.
Patent GB-977746-A (GB)
Title: Improvements in and relating to methods and systems for measuring phase displacement between two alternating voltages
Inventor: PARISOT JEAN CLAUDE
IPC: G01R25/00
Filed: 1962-05-11
Abstract: 977,746. Phase discriminators. ELECTRICITE DE FRANCE. May 11, 1962 [June 14, 1961], No. 18302/62. Heading H3A. Voltages V 1 , V 2  are applied to Schmitt trigger circuits C 1 , C 2  whereby square waveform signals w 1 , w 2  are produced and converted to pulses d 1 , d 2  by differentiators D 1 , D 2 . Pulse generators R 1 , R 2  receive the pulses d 1 , d 2  and produce corresponding sawtooth pulses u 1 , u 2 . An addition amplifier AA receives the pulses u 1  directly and the pulses u 2  by way of polarity inverter A 1  whereby a voltage is delivered equal to the difference between the pulses u 1 , u 2 . During periods of time a (Fig. 2), the difference between the pulses u 1 , u 2 , namely the output voltage S, is proportional to the phase difference between the voltages V 1 , V 2 . The output voltage S is sustained during intervals of time b (the phase difference between the voltages V 1 , V 2 ), by the addition of negative square pulses u 3  having an amplitude equal to the difference between the pulses u 1 , u 2 , the pulses u 3  being equal in duration to and coincident with the intervals b. The pulses u 3  are produced by a bistable multivibrator circuit B triggered by pulses u 1 , u 2 , a potential divider B 13  being included in its output to enable the amplitudes of the pulses u 3  to be adjusted. The discriminator may include differentiator circuits A 20 , A 30  and amplifiers A 2 , A 3  whereby voltages S<SP>1</SP>, S<SP>11</SP> are produced proportional to the first and second derivatives of the voltage S. The pulse generators R 1 , R 2  have the form of relaxation circuits and may comprise a thyratron R 11 , a pentode R 13  and a triode R 14  connected as shown.
Patent GB-580414-A (GB)
Title: Improvements in porous metallic bodies
IPC: B22F3/11
Filed: 1943-11-04
Abstract: 580,414. Filtering liquids. CALLITE TUNGSTEN CORPORATION. Nov. 4, 1943, No. 18353. Convention date, May 13. [Class 46] [Also in Groups II and XXXIV] A porous body is made by coating broken crystalline metallic particles with a lower melting point metal and sintering into a coherent body. Preferred metals are tungsten molybdenum and ironmolybdenum - manganese alloy. In the case of tungsten an ingot is heat treated at about 2,800C. until formed into large crystals, then broken up to separate the crystals which are further crushed into irregular particles as by ball milling or hammering. The particles are then sorted into batches by successive passage through screens, e.g., of 40, 60, 100, 150, 200, 250, 300 and 350 mesh. Material remaining on one screen may be mixed with that from another to provide control of the degree of porosity. In the case of the alloy the brittle crystalline structure is produced by casting and chilling. The graded particles are wetted with an aqueous solution of silver-nitrate, dried, mixed with a binder of paraffin dissolved in carbon tetrachloride. In an example particles from the 350 mesh screen so treated are loaded into a die 1 and compressed by a plunger 2 to about two-thirds the original volume at 4. Material from the 200 mesh screen is added and pressed into a second layer 5 and particles from the 60 mesh screen form a third layer 6. Pressure is now increased to 30,000 lbs. per sq. in. to compact the entire mass and causes a limited amount of interpenetration at the boundaries of the layers. The compact is removed from the die and heat treated in stages (a) to volatilize the binder, (b) to reduce the silver nitrate to oxide, (c) to reduce the oxide to silver and (d) to sinter the silica coated particles into a strongly coherent porous mass. Bodies so produced are suitable for use as filters or bearings.
Patent GB-120656-A (GB)
Title: Improvements in or relating to Steam Superheaters.
Inventor: HEWAT HENRY ALSTON
IPC: F22G7/06
Filed: 1917-12-12
Abstract: 120,656. Hewat, H. A. Dec. 12, 1917. U-tube and like superheaters.-An element g is connected to the bottom of horizontal parallel headers e, f by ciamps h each encircling a header and gripping the element so as to pull it against its opening in the header. A gap k in the bottom of each of the oval-shaped clamps shown has stiffening jaws adapted to be pressed against a collar q on a tube end by a screwed bolt n screwing into the top of the clamp and bearing against a header. The headers are enclosed in a box d packed with slag wool, asbestos shavings, or other non-conducting material.
Patent GB-942369-A (GB)
Title: Polyethylene blend
IPC: C09D123/06
Filed: 1962-05-14
Abstract: A polyethylene blend having a density of 0.925 to 0.935 g/cc is prepared by mixing 20 to 45 weight per cent of a polyethylene having a density of less than 0.920 g/cc., 30 to 60 weight per cent of a polyethylene having a density of 0.924 to 0.933 g/cc. and at least 10 weight per cent of a polyethylene having a density above 0.945 g/cc. The melt indices of the resultant blend and of the three polyethylene components of the blend are preferably 3.5 to 15 g/10 min., 1.5 to 5 g/10 min., 5 to 15 g/10 min. and 3 to 35 g/10 min., respectively. The polyethylene components of the blend are all high molecular weight solid polyethylenes having melting points of at least 110 DEG C.  In the examples the polyethylenes were dry blended and after extrusion were applied to Kraft paper to form a coating thereon.  The blends of the invention may be modified by adding stabilizers, antioxidants, pigments, dyes, light absorbers &c. or may be modified by after treatments.
Patent GB-591461-A (GB)
Title: Improvements in and relating to cedar chest locks
IPC: E05B65/52
Filed: 1944-09-27
Abstract: 591,461. Fastenings; locks; hinges. YALE & TOWNE MANUFACTURING CO. Sept. 27, 1944, No. 18486. Convention date, Aug. 19, 1943. [Classes 44 and 65 (ii)] In a lock in which the bolt is retracted by the inward sliding of a key barrel, the inward movement is prevented only by the tumblers and rotation of the barrel is not necessary. In the embodiment described, the barrel may be rotated and retained in a position in which sliding of the barrel is not prevented. It is adapted for the lid of a chest which carries a depending staple 25 for engagement by a hook bolt 20 pivoted at 21, the lower end of the bolt being engaged by the end of the lock-barrel 12 ; the bolt is cut and bent out of thick sheet metal, and is pivoted by lateral extensions 21 carrying sleeves 22 which engage in notches in the side walls of the lock casing 13 and are held in the notches by the back plate of the casing. The locking-mechanism comprises spring-pressed sliding tumblers 33 in the barrel, actuated by a non-rotating key and normally engaging a slot 35 in the casing, inward sliding of the barrel being prevented by an end wall 40 of the slot and withdrawal by a retaining member 38. When the tumblers 33 are retracted, as in Fig. 5, the barrel can be pushed in to actuate the bolt 20, and it can be rotated so that the detents may, when the key is withdrawn, engage a second slot 46 which has no end wall, the device being then merely a push-button-operated hook fastening ; the rotation of the barrel 12 is limited by an eccentric lug 47 on its end engaging suitably arranged surfaces on the lower end of the bolt 20. Slots in the lock-barrel opposite the slots 35, 46 are provided to allow necessary movement of the tumblers 33 during insertion and withdrawal of the key.
Patent GB-807095-A (GB)
Title: Bath for the electrolytic deposition of silver or gold or alloys of these metals in highly lustrous form
IPC: C25D3/46
Filed: 1955-06-27
Abstract: Alkali-soluble condensation products are obtained (1) by heating an alkali metal alkyl xanthate with acrolein in presence of aqueous alkali, and (2) by reacting carbon disulphide with acrolein or an a -alkyl or a -aryl-substitution derivative thereof in presence of aqueous alkali, followed by subsequent heating of the acidified product.  The xanthate is preferably potassium ethyl xanthate. Substituted acroleins are preferably a -methyl, a -ethyl, a -propyl, a -butyl, a -phenyl or a -tolyl acroleins.
Patent GB-680095-A (GB)
Title: Improvements in or relating to pulse recurrent frequency dividing circuits
Inventor: JOHNSON ANTONY BEVIS
IPC: H03K25/00
Filed: 1951-08-07
Abstract: 680,095. Pulse frequency dividing circuits. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Aug. 7, 1951, No. 18561/51. Class 40 (vi). The screen grid of a pentode feeds pulses to a step-generating circuit comprising capacitors 13, 14 and diodes 15, 16 to cause the suppressor grid to become increasingly positive until anode current commences to flow, the voltage generated across the secondary of transformer 20 driving the suppressor grid further positive to discharge capacitor 14 by suppressor grid current and thus reset the step generating circuit. The input is applied in the form of negative pulses to the control grid of an amplitude greater than the grid base, positive pulses of substantially constant amplitude appearing in the screen grid circuit.
Patent GB-354476-A (GB)
Title: Improved means for preventing noises in water pipes or fittings
IPC: F16L55/027
Filed: 1930-06-18
Abstract: 354,476. Preventing noises in water pipes &c. DAVIS & BROCKLESBY, Ltd., 147, Radnor Street, Hulme, and DAVIS, H., 26, South Drive, Chorltonville, both in Manchester. June 18, 1930, No. 18562. [Class 68 (i).] A silencer for use in water pipes or fittings comprises a substantially thimbleshaped body C inserted in the pipe &c. with its blank end A pointing in the direction of flow and with ports B in its side walls.
Patent GB-746575-A (GB)
Title: Improvements in or relating to air or dive brakes for aircraft
IPC: B64C9/32
Filed: 1954-06-24
Abstract: 746,575. Aircraft airbrakes. BLACKBURN & GENERAL AIRCRAFT, Ltd., FENTON, G. B., and BRUMBY, H. June 24, 1954, No. 18598/54. Class 4. An aircraft airbrake comprises at least two members which normally form a rear continuation of the fuselage and are each forwardly pivotally connected to a linearly movable part, with a link normally lying in a recess in the outer surface of each member pivotally connected to such member and to a fixed point of the fuselage, such that on rearward movement of such part the members are swung out by divergent translational movement into laterally extending operative positions. Fig. 3 shows the normal position in full lines, and the extended position in broken lines. Two links 5 and 6 are pivoted to fixed structure 40 and to the surfaces 1 and 2 which are also pivoted to a common member 4 slidable between guides 12, 13 by a jack 15, so that extension of the jack moves member 4 rearwardly to extend the surfaces. Guides 12 and 13 are braced by members 9 and 10, and the pivot point of links 6, 6 on the surfaces is chosen so that on failure of the jack, the surfaces close under the action of the air stream. The surfaces may be provided with extensions 18 which in the retracted position come together to form fins 41, and which in the extended position increase the area of the surfaces. Such fins may be exchangeable for fins of different size. The links lie in recesses in the surfaces when in the retracted position. Locking mechanism may be operated by the jack, and an indicator may inform the pilot when the brake surfaces are properly retracted. A further embodiment, Figs. 6-8 (not shown), has four symmetrically disposed surfaces, each having its own pivotal axis on a common cross-member slidable by a jack as above.
Patent GB-896152-A (GB)
Title: Steam cooking utensils
IPC: A47J27/05
Filed: 1958-06-11
Abstract: 896,152. Steam cooking utensils. FRITSCH, P., FRITSCH, W., FRITSCH, O., and FRITSCH, E., [trading as FRITSCH & CO. O H G.]. June 11, 1958 [Dec. 16, 1957], No. 18633/58. Class 66. A steam cooker comprises one or more steamers 7, 8 placed above a steam generating pan 6, the steamers 8 each having a funnel-shaped part 8a, upstanding in their bases with holes 8<SP>1</SP> in their upper ends, and the steamer 7 having as its base a removable perforated plate 7a on which rests an inner receptacle 10. In modifications the part 8a may be extended by a cowl, Fig. 2 (not shown), such cowls may be formed in two pieces, Figs. 3 and 4 (not shown). The rim of a cover 9 may take the form shown in Fig. 1a with reference to the inner receptacle 10.
Patent GB-134364-A (GB)
Title: Holders for Incandescent Electric Lamps.
Inventor: QUARMBY FRED
IPC: H01R33/965
Filed: 1918-11-14
Abstract: 134,364. Quarmby, F. Nov. 14, 1918. Addition to 123,544. Holders.-A holder of the kind described in the parent Specification is provided with a sheath which, when grasped, grips the holder so as to prevent rotation of its parts relatively to one another when the lamp is turned. The sheath may comprise a split cone a, over which is screwed a flanged nut d. A shade-ring may be fitted beneath the nut d. In a modification, the sheath is of rubber and is in one piece.
Patent GB-839397-A (GB)
Title: Improvements in or relating to the development of latent electrostatic lmages
IPC: G03G15/22
Filed: 1957-06-13
Abstract: 839,397. Electrophotographic development. ZINDLER, W., [trading as LUMOPRINT ZINDLER KOMM.-GES.]. June 13, 1957 [June 29, 1956; Aug. 28, 1956], No. 18715/57. Drawings to Specification. Class 98(2) An electrostatic latent image on a photoconductive sheet' is developed by passing the sheet downwardly into, through and upwardly out of a mass of developer powder comprising toner and carrier particles, and then to a fusing device. In one embodiment, guide wires in the form of an upwardly open arc are arranged in the developer powder mass to guide the sheet. On emerging from the developer powder excess powder is removed by a rod which vibrates on the back of the sheet, and the developed sheet is then passed to the fusing device. The container for the developer powder may be shaken. In another embodiment, the photoconductive sheet is in the form of a web which is guided through the developer powder by means of two rollers placed in the powder. Agitator paddle wheels are provided in the powder mass. After emerging from the powder, the back of the web passes over a rotating brush which assists in removing excess powder before the web passes to the fusing device.
Patent GB-638811-A (GB)
Title: Improvements in or relating to grates for domestic fireplaces
IPC: F24B1/193
Filed: 1948-07-13
Abstract: 638,811. Domestic grates. WILKINSON, A., and WARING, J. July 13, 1948, No. 18747. [Class 126] A domestic grate comprises a fire-basket 5 having an inclined grate 10 in combination with a fret 13 at least equal in height to the front of the basket the lower part of the fret being provided with a primary air supply hit-and-miss regulator 17 and the upper portion with an opening closed by sliding doors 22 the latter providing means for rendering the fire visible from the front.
Patent GB-941032-A (GB)
Title: Working cylinder for pneumatic and hydraulic media
IPC: F15B15/14
Filed: 1962-05-16
Abstract: 941,032. Cylinders. G. STOLL, [trading as FESTO-MASCHINENFABRIK G. STOLL]. May 16, 1962 [May 17, 1961], No. 18789/62. Heading F2T. [Also in Division F1] An hydraulic or pneumatic working cylinder 1 which may be mounted by elements detachably secured to the end plates 2, 2<1> of the cylinder comprises projections 4, 4<1> provided centrally on the end plates and carrying external screwthreads 5, 5<1>. The projections, through one 4<1> of which passes the piston rod 3 of the cylinder, have through bores 6, 6<1> and are provided with opposed flats 7, 8. The cylinder may be mounted by engaging the thread of the projection 4 with a thread in a through or blind bore in a machine or apparatus. In another arrangement, the projection is screwed into a hole in a right-angled foot bracket and secured by a locknut. A ring 38 of the same diameter as the cylinder may be threaded on to the projection 4 to enable the cylinder to be mounted in the bore of a foot attachment. The cylinder may be secured to a wall or a base by screwing a flange having a number of peripherally-spaced holes on to the projection, the flange being secured by a lock nut. In an arrangement for pivotally mounting the cylinder, a pin is passed through the bore 6 and its ends are located in a U-shaped bracket.
Patent GB-188808-A (GB)
Abstract: 188,808. Robson, F. F. Aug, 24, 1921. Bedsteads convertible into seats; rests, head and arm.-In a combined settee and bedstead of the type wherein the seat portion of the settee comprises a pair of superposed frames hinged together and adapted to be pulled out from the settee and folded down to form a bed, the back of the settee is adapted to be folded down to form a head rest for the bed. The. structure comprises an underframe 10 supported on legs 11, and provided with end members 12; and rear posts 14 supporting a hinged back 15 which is pivoted at 16, stops 17 carried by the posts 14 serving to limit its rearward movement. A sliding frame 20 provided with rollers 21 runs on rails 22 on the frame 10, pins on which the rollers are mounted engaging in grooves in the end members to limit the extension of the frame. A frame 23 is hinged to the front edge of the member 20, so that the frames 20, 23 may open out as shown in Fig. 4, when the frame 20 is supported by the legs 25, and the frame 23 by hinged legs 26 connected by links to a hinged end rail 27. The link system comprises a fitting 28 on the rail 27 to which is pivoted a link 29, the opposite end of which is mounted on a pin sliding in a slot 30 in a plate 31, this pin also carrying one end of a link 32 pivotally connected to the legs 26 so that the rail 27 and legs 26 open and fold together. The ends of the frame 23 are preferably recessed to accommodate the legs 26 in the folded position. Arm rests 13, hinged to the end members 12, are provided with inclined lower faces 34 corresponding to the inclined tops 35 of the members 12, so that when the arm-rests are folded back, these surfaces form an unbroken slope. The back 15 is upholstered on both sides 36, 37, and the armrests 13, end members 12, and the surface 38 of the frame 23, are also upholstered and the frames 20, 23 are recessed on their inner sides to receive mattresses 39. A receptacle 40 for bedding may be marked in a frame 10. The lower edge of the back 15 is preferably so arranged that the rear edges of the frames 20, 23 are normally accommodated beneath it, and the frames may be furnished with locking means. The legs 11, 25 are preferably mounted on castors.
Patent GB-227062-A (GB)
Title: Improvements in apparatus for computing the corrections for artillery firing
IPC: F41G11/00
Filed: 1924-08-09
Abstract: 227,062. Fontanges, G. M. M. J. de. Aug. 9, 1924. Gunnery calculators; tabular calculators; computing scales.-A device for determining the corrections for artillery firing comprises a table on which several superposed cardboards of decreasing length and provided with correcting diagrams are adapted to slide and a graduated rule arranged parallel with the sliding direction and movable in a direction at right-angles thereto. The rule is set to the uncorrected value and the edges of the cardboards are successively brought to such a position that the corrections are algebraically added along the rule. The device comprises a table 10 with mouldings 12, a set of cardlroards 1, 2, 3 of decreasing length having diagrams representing the correction of range corresponding to variations of muzzle velocity, longitudinal component of the wind, &c., and a graduated rule 13 provided with screws 14 for engaging the slotted edges of the table. A range table is marked on the lowermost cardboard and corresponds with the scale of the ordinates of the correction diagrams and the rule is graduated in accordance with the scale of abscissµ of the cardboards, The right-band side of each cardboard bears a diagram for correcting the fuze-setting for various disturbing causes. In order to obtain the corrected range directly the rule 13 is provided with a sliding scale 16 as shown in Fig. 6. This scale 16 is provided with tablets 17, 18 arranged at a distance of one kilometer, and is so adjusted that the zero of the rule 13 is opposite the decimal of the range under observation.
Patent GB-293049-A (GB)
Filed: 1928-06-29
Abstract: 293,049. British Tabulating Machine Co., Ltd., (Assignees of Tabulating Machine Co.). June, 30, 1927, [Convention date]. Selective punching machines.-In apparatus for punching record cards &c. of the kind comprising a key-board and a number of punches and punch selecting elements adjustable devices are included in the coupling means between the keys and the punch selecting elements whereby any key may be coupled at will to any one or more of the punch selecting elements. The punches 12 are guided for vertical movement in a guide plate 13 and stripper plate 14 and each punch is adapted to be operated by a lever 17 when a latch 18 is moved by a bar 20 into position under a common operating bar 19. The bars 20 are each individually operable by keys 22 engaging cams 21 on the bars. Each of the bars 20 is provided with series of spaced holes 27 into which pins 28 may be inserted, the pins co-operating with spring-pressed plates 30, which extend transversely above the bars and are operated about the pivots 29 by keys 26. Rows of combination holes may be punched by arranging the pins 28 in requisite positions transversly of the bars adjacent each of the plates 30 and depressing the corresponding key of each combination; the movement of the bars 20 closes the circuit of an electro-magnet or motor actuating the bar 19. Specification 238,553 is referred to.