baber/WOPTO huggingface dataset:
Patent GB-385673-A (GB)
Title: Hollow artificial silk of low luster and process of preparing the same
IPC: D01F2/30
Filed: 1931-09-15
Abstract: Hollow artificial filaments of subdued lustre are produced by dry spinning a solution of a cellulose ester, e.g. cellulose acetate or nitrate in a volatile organic solvent, which solution contains isopropyl ether, preferably present in the solvent in a proportion of about 5 to 20 per cent, for instance 10 per cent. An example is given of the spinning of a 24 per cent solution of cellulose acetate in a solvent mixture comprising 92 per cent of technical acetone and 8 per cent of isopropyl ether.  The Specification as open to inspection under Sect. 91 refers to the addition to the spinning solution of volatile non-solvents generally, and mentions higher ethers and halogenated ethers, for example, normal propyl ether, butyl ether, methyl ethyl ether, ethyl propyl ether, monochlorether, and dichlorether.  This subject-matter does not appear in the Specification as accepted.
Patent GB-913837-A (GB)
Title: Improvements in or relating to microwave mixers
Inventor: BUTSON PETER CHARLTON
IPC: H03D7/14
Filed: 1960-07-25
Abstract: 913,837. Frequency-changing arrangements. GENERAL ELECTRIC CO. Ltd. July 24, 1961 [July 25, 1960], No. 25881/60. Class 40 (6). A microwave mixer comprises a short length of rectangular waveguide, seen end-on at 1, to which the signals to be mixed are applied, being closed at one end and having arranged transversely across the open end a post 2, preferably offset toward one side wall of the guide. The post 2 extends through apertures 3 in the upper and lower walls of the waveguide, its ends being hollow to receive the centre conductors 5 of a pair of similar crystal rectifiers 4. The open end of the outer conductor of each crystal rectifier is adjacent to the corresponding wall of the waveguide, being separated from it by an insulating shim 11 and encircling the corresponding aperture 3. The crystal rectifiers 4 are held in place by short tubes 8 of such an internal diameter that they are sliding fits, each tube being threaded externally and provided with a cap 9 containing a resilient pad 10 which retains the corresponding crystal rectifier 4 in place. The output from the mixer is derived by way of a coaxial line 12, the inner conductor of which is connected to the mid-point of the post 2, being taken symmetrically from the post so as to be free from the signals being mixed. The connection between the coaxial line 12 and waveguide 1 and post 2 may alternatively comprise a connector to allow of disconnection.
Patent GB-1022659-A (GB)
Title: Polyhalobenzimidazole poultry treatment and poultry feed
IPC: C07D235/08
Filed: 1964-06-23
Abstract: Veterinary compositions for treating coccidiosis or histomoniasis comprise a major portion of poultry food containing a benzimidazole derivative having the formula <FORM:1022659/A5-A6/1> where either 2 or 3 of the radicals X are halogen and the other radical or radicals X is or are hydrogen and R and R1 which may be the same or different, each represents a hydrogen atom or an alkyl, cycloalkyl, hydroxyalkyl, dialkylaminoalkyl, bis-N, N-(hydroxyalkyl)aminoalkyl bis-N, N-(haloalkyl)aminoalkyl, mercapto alkyl or arylalkyl radical, or a veterinarily acceptable quaternary ammonium or acid addition salt thereof.  The di-substituted aminoalkyl radicals, together with the nitrogen atom to which they are attached, may form a heterocyclic ring which may include an oxygen atom.  Numerous active compounds are tabulated, the preferred compounds being 5, 6-dichlorobenzimidazole and 3-(41-amino-21-n-propyl-51-pyrimidyl)-methyl-5, 6-dichlorobenzimidazolium bromide dihydrobromide.
Patent GB-697665-A (GB)
Title: Improvements in trolleys
IPC: B62B5/00
Filed: 1950-10-24
Abstract: 697,665. Hand trucks. GASCOIGNES (READING), Ltd., and GASCOIGNE, G. H. Jan. 24, 1952 [Oct. 24, 1950], No. 25925/50. Class 108 (i). A hand truck comprises a framework having substantially vertical members 3 forming guides for sliding transverse members 5 carrying a churn engaging hook 7. The churn is raised by the hand lever 8 which elevates the members 5 by means of the link 9.
Patent GB-408517-A (GB)
Title: Improvements in or relating to machines for making hollow glass ware
IPC: C03B9/347
Filed: 1933-09-20
Abstract: 408,517. Glass manufacture. UNITED GLASS BOTTLE MANUFACTURERS, Ltd., MOORSHEAD, T. C., and DORMAN, E. P., 40, Norfolk Street, Strand, London. Sept. 20, 1933, No. 25938. [Class 56.] A rotary glassshaping machine of the press-andblow type is providedwith means for imparting a rotary or oscillating movement to the finishing mould, during the blowing operation, in order that "turned" ware may be made on the machine. The invention is particularly applicable to a machine of the kind described in Specification 281,383, [Class 56]. Each half 1 of the finishing mould is supported in an outer half-shell or casing 2 and is free to rotate therein. Ribs 3 formed on the mould engage undercut grooves on the casing to prevent the mould from being displaced axially, and balls or rollers 5 may be interposed between the mould and the casing. The mould is rotated by the bottom plate 6 which is provided with pins 7 that engage recesses in the mould when it is closed. The bottom plate 6 is coupled to a coaxial vertical shaft 11 which is journalled in the mould carrier 14, and is provided with a toothed sector 15 that engages another sector gear 16 keyed to a shaft 17. This shaft is oscillated by a stationary cam track 23 which extends around the machine, and is so shaped that the rotation of the mould units about the central column imparts an oscillatory movement to the moulds 1. The cam track is formed with a gap that permits a spring to restore the bottom plate 6 to the position at which the mould halves 1 have their meeting faces in the same plane as the meeting faces of the halves of the casing 2. Means are also provided for locking the two halves of the mould against rotation while the mould is open to receive a parison.
Patent GB-799398-A (GB)
Title: Improvements in or relating to mechanical stop-start clutches
IPC: F16D41/02
Filed: 1956-08-24
Abstract: 799,398. Friction clutches. SIEMENS & HALSKE AKT.-GES. Aug. 24, 1956 [Aug. 25, 1955], No. 26045/56. Class 80 (2). A friction clutch for use in teleprinters &c. comprises a driving drum having an annular flange 3 engaged by a slot 9a in a clamping bar 9 mounted between two flanges 5 fast with a driven shaft 4, the slot 9a engaging the drum flange 3 more firmly with increasing torque, movement of a stop 14 into the rotary path of the clamping bar arresting the driven member and disengaging the clutch. The inner end of the clamping bar 9 is formed with cylindrical projections 9b pivoting in the ends of slots 8 in the flanges 5. The line of the slots 8 is offset from the radii of the flanges 5. A U-shaped hair spring 10 on a pivot pin 11 between the flanges 5 biases the clamping bar 9 radially outwards in its flange slots 8 to engage the inner side A of the slot 9a lightly with the inner side of the drum flange 3. Transmission of torque tends to pivot the clamping bar 9 about the axis of its projections 9b and thus also engages the outer side B of its slot 9a with the outer surface of the drum flange 3. When the clutch is disengaged by the clamping bar 9 striking the stop 14, the clamping bar turns about the axis of its projections 9b and forces an arm 13, pivoting on a pin 12 between the flanges 5, outwards to engage firmly with the inner side of the drum flange 3. Rebound of the driven shaft 4 is thereby minimized. A felt pad 15 saturated with oil lubricates the inner surface of the drum flange 3. In a modification, Fig. 5 (not shown), the rebound arm 13 is replaced by a lever arranged to multiply the force with which it is applied to the drum flange to further minimize rebound, and an additional clamping arm, similar to the clamping arm 9 but operative in the opposite direction of rotation, also becomes operative on rebound to help station the driven shaft 4 &c.
Patent GB-1055262-A (GB)
Title: Improvements in read-only stores
Inventor: SPENCER GWYNNE WALLACE
IPC: G11C17/04
Filed: 1964-06-24
Abstract: 1,055,262. Read-only stores. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 24, 1964, No. 26049 /64. Heading G4A. In a read-only matrix store, one of two pairs of coupling capacitors at the intersection of a pair of drive conductors and a pair of sense conductors is disabled to select the polarity of the voltage appearing across the two sense conductors in response to a voltage applied across the two drive conductors, the two disabled capacitors being adjacent to one another in either the drive or the sense direction of the matrix. The invention is a modification of that in Specification 1,055,261 which is referred to, the adjacency of the two capacitors enabling them to be disabled in a single punching operation. In Fig. 3, a row is read-out by pulsing a terminal 18 for the row, the polarities of the outputs from difference amplifiers 6 representing the bits. The small squares 2 represent non-disabled capacitors. Each sense line S1a S1b, S2a etc. contains the same number of non-disabled capacitors, irrespective of the information stored. The adjacency referred to its achieved despite this by having the sense conductors cross over as shown, this occurring without electrical contact since the relevant parts of the sense conductors are on opposite sides of a board bearing them, internally-plated holes through the board being provided (Fig. 4, not shown). The disadvantage that the pattern required for a given bit reverses in going from one row to the next can be removed by connecting the drive current generator across the two drive conductors and with reversed polarity in alternate rows (Fig. 5, not shown). Actual physical crossing of the sense conductors is not strictly necessary and Figs. 6a, 7a, 7b (not shown) show three alternative arrangements of the printed circuitry on the sense board for eliminating it, the first (only) requiring alternately reversed polarity drive generator (see above). All the above embodiments utilize two printed circuit boards one for the sense conductors and the other for the drive conductors, with half the capacitor electrodes on each board, but the two sides of a single board may be used instead (Fig. 8, not shown).
Patent GB-1301890-A (GB)
Inventor: ARONOFF E J
IPC: C09D167/06
Filed: 1970-05-29
Abstract: 1301890 Divinyl compound FORD MOTOR CO Ltd 29 May 1970 [4 Aug 1969(4)] 26111/70 Heading C2C [Also in Divisions B2 and C3] The invention comprises a divinyl compound prepared by reacting one molar proportion of a diepoxide with about two molar proportions of acrylic acid and/or methacrylic acid to produce a dihydroxy divinyl ester and subsequently reacting this with about two molar proportions of a saturated acyl halide.
Patent GB-389748-A (GB)
Title: Buttonhole-cutting mechanisms
IPC: B25G3/02
Filed: 1932-09-21
Abstract: 389,748. Buttonhole-sewing machines. FAIRWEATHER, W. C., 65, Chancery Lane, London.-(Singer Manufacturing Co. ; Elizabeth, New Jersey, U.S.A.) Sept. 21, 1932, No. 26217. [Class 112.] Cutting mechanism sufficiently heavy and powerful for cutting holes in thick fabric such as the side walls of mattresses, quilts, &c., is provided in a machine which then sews round the holes after the manner of a buttonhole. In the form illustrated, the work is clamped between the lower supporting plates 7 and upper clamp-feet 8 which expose a circular area of work for the action of the stitchforming mechanism. During the sewing operation, the work within this exposed area is supported against the thrust of the needle by a needle-throat member 9 pivoted at 10 on the turret 11 carrying the looper mechanism 6. This member is tilted out of the way when the cutting levers are advanced. The operation of the cutting mechanism is as follows. When the machine is stationary, the cutter levers 19, 20 are in their retracted position, as shown, and a screw pin 38 is intermediate the ends of the slot 39 in the link 40. The work W is introduced into the work clamp. After the machine is started, the cutter shaft 12 is connected to its driving means for one revolution and is then brought to rest in the usual manner. During the rotation of the cutter shaft, the cam 13 first advances the fulcrum-block 15 to carry the punch and die to cutting position. Following this, the cam 16 partly tilts the upper cutter lever 19. The screw pin 38 travels idly along the slot 39 in the link 40, with lost motion, causing no motion of the punch 22 relative to the carrier lever. The cam 17 also partly tilts the lever 20 and slightly elevates the die 21. During the continued movement of the shaft 12, the screw pin 38 strikes the upper end of the slot 39 in the link 20 and as the cutter levers are further tilted by the cams 16, 17, the punch 22 is powerfully and suddenly driven through the work Wand slightly into the die 21. The lower end of the punch is chisel-shaped to facilitate its shearing action in perforating the work. During the further movement of the shaft 12, the cutter levers are tilted to separate the cutters and retracted to their initial position.
Patent GB-439996-A (GB)
Title: Improvements in electric power factor measuring instruments
IPC: G01R25/00
Filed: 1934-09-13
Abstract: 439,996. Power-factor, current, and pressure measurements. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, TURNER, H. C., and SHERWIN, A., c/o Salford Electrical Instruments, Ltd., Silk Street, Salford, Lancashire. Sept. 13, 1934, No. 26289. [Class 37] Power - factor meters comprise two core parts 1, 2 hinged together and providing a small airgap at 8, a moving iron member 4 being located adjacent the hinge and one or more voltage coils 6, 7 being provided on the core. In order to measure power-factor, the core parts are opened to embrace a conductor 10 a predetermined deflection of the pointer 5 being obtained with a set air-gap. The instrument is then removed from the conductor and the voltage coils connected, adjustment of the resistance' 9 being made until the same deflection is obtained. The conductor 10 is again inserted with the voltage connection made, the resultant deflection indicating the power factor. Scales of power-factors, amperes and volts may be provided.
Patent GB-974758-A (GB)
Title: Batch type furnaces, using a protective gaseous medium for scale-free heat treatmentof metal objects
IPC: C21D1/767
Filed: 1961-07-21
Abstract: 974,758. Heat treatment furnaces. ZAVODY V. I. LENINA PLZEN NARODNI PODNIK. July 21, 1961 [Aug. 1, 1960], No. 26444/61. Heading F4B. A batch furnace contains inlet ports for admitting a protective gas into a treatment chamber having in its side walls parallel channels which are open towards the interior of the chamber and run from burners at the bottom of the chamber to outlet ports at the top. The combustion products from the burners are restrained to pass up the channels by the presence of the protective gas in the middle of the treatment chamber. As shown in Figs. 1, 2,  the side walls 2, containing ceramic grooves 3, of parabolic cross-section, are shaped to form an arch. Combustion products pass from burners 6 via grooves 3 and outlet ports 15 into longitudinal ducts 8 and thence to a recuperator 24. Secondary combustion is caused in duct 8 by the injection of air through sloping ducts (not shown), and the heated air from the recuperator passes back to the burners 6. Protective gas is delivered into the furnace at the top via a pipe 12, a U-shaped preheating duct 10 and inlet ports 13 and at the bottom via pipes 20, longitudinal ducts 14 and vertical ducts 16 leading to inlets 17 in the furnace floor. The floor and one end wall of the furnace may be heated by combustion products from burners not shown, which pass through 'ducts 25 and up ducts 27. Fig. 6 shows a furnace with a brick floor 28 which is not heated.
Patent GB-893433-A (GB)
Title: Improvements in fluid pressure valves and sealing members therefor
IPC: F16K3/02
Filed: 1958-08-18
Abstract: 893,433. Valves. A.C.F. INDUSTRIES  Inc. Aug. 18, 1958 [Oct. 30, 1957], No. 26445/58. Class 135. A valve such as a sliding gate valve, Fig. 1, or a rotatable plug valve, including a housing 12 having a flow passage 16, 18 therethrough and a valve chamber intersecting the flow passage, and provided with a pocket 32 in the wall of the housing concentric with the passage, is sealed by a sealing member 10 adapted for location in the pocket, which sealing member comprises an annular split ring 50, 54 of resiliently deformable material bonded to a portion 42 of a rigid support member 34 adjacent the periphery of an orifice 40 therein coincident with the flow passage, the ring being formed by, or including, a first mass 50 of resiliently deformable material disposed on one side of the support member for location in sealing engagement with the pocket, and a second mass 54 of resiliently deformable material disposed on the opposite side of the support member and attached to the first mass throughout openings 48 therein. The second mass may terminate in a laterallydisposed annular raised portion 52 normally projecting beyond the confines of the pocket into sealing engagement with a face of the valve closure member 28. The sealing member 10 has the support member formed, as shown, with a generally forwardly inclined J-shaped cross section, the openings 48 being in the inclined leg portion of this J-shaped section to form the face 52 and the second mass 54 being on the other side of the leg, whilst a third portion 56 of resiliently deformable material of substantially lesser size than the portions 50, 54 may be moulded on the outer side of the hook portion 46 of the J-shaped section.
Patent GB-153170-A (GB)
Title: Improvements in log and deal frame saws
IPC: B27B3/12
Filed: 1919-10-29
Abstract: 153,170. McCulloch, J. Oct. 29, 1919. Reciprocating saw machines. - The driving-gear of a log-sawing machine is enclosed in an oil-tight chamber b to protect it from dust, &c. The driving-shaft c passes through bearings d, and may carry fast and loose pulleys as shown. The reciprocating rod h which actuates the saw passes through a stuffing box j.
Patent GB-319140-A (GB)
Title: Improvements in the manufacture and production of carbon
IPC: C09C1/54
Filed: 1928-09-17
Abstract: 319,140. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Sept. 17, 1928. Addition to 286,845. Carbon.-Carbon black is produced from carbon monoxide or gases containing the same by heating the gas in the presence of small quantities of volatile or readily volatilizable compounds of metals which decompose carbon monoxide, small quantities of water vapour being also present. The process may be carried out at 350-700‹C. and at ordinary, increased or in some cases at reduced pressure. Pressures of 5-200 atmo spheres or higher may be used. The metal compounds include derivatives of the iron group, for example carbonyls or organic compounds of iron, nickel and cobalt such as iron or nickel acetylacetonate, the amounts being for example 0.1-0.5 per cent by volume. The amount of water vapour used may be 0.5 to 5 per cent by volume and is preferably more than 0.7 per cent. The water vapour may be added by passing the gas into contact with water at a raised temperature, for example 90‹C. Carbon dioxide, hydrogen, nitrogen or gaseous hydrocarbons such as methane may be present in or added to the gases under treatment. The decomposition may be effected by passing the gas through a heated vertical tube, the gases flowing downwards and the carbon black formed settling at the bottom for example in a separating chamber having a worm conveyer or other mechanical means for removing the carbon. An example is given in the Specification. The carbon may be used for preparing endorsing or printing rules or other coloured compositions or in the production of rubber articles from rubber and from diolefine polymerization products.
Patent GB-1179538-A (GB)
Title: Electro-Magnetic Drive for a Counting Decade
IPC: G06M1/10
Filed: 1968-06-04
Abstract: 1,179,538. Electromagnetic counters. H. MULLER, and S. MULLER, [trading as J. HENGSTLER K.G. ZAHLERFABRIK]. 4 June, 1968 [5 June, 1967], No. 26605/68. Heading G4D. A reversible electromagnetic drive for a counter wheel 11 comprises a pair of solenoids 4, 5 and a pivotally mounted escapement 9 biased to a centralized position. Assuming that solenoid 4 is energized, then armature 8 is pulled to the left, rocking the escapement 9 anti-clockwise about its pivot 18 through a pin- and-slot connection 10. A drive cam 13 engages a pin 14 on the counter-wheel 11 to advance it half a step. Release of the solenoid allows the escapement to return under the action of spring 17, a second drive cam 12. engaging the next pin 14 to advance the wheel a further half-step and hold it in its new. position. The solenoid 5 acts in like manner to drive the wheel in the opposite direction. Transfer is effected by closing a contact.
Patent GB-297329-A (GB)
Title: Improvements in or relating to motor vehicle steering gear
IPC: B62D3/02
Filed: 1928-09-17
Abstract: 297,329. Soc. Anon. des Anciens Etablissements L. Laisne. Sept. 17, 1927, [Convention date]. Springs, arrangement of; frame construction.-The Specification as open to inspection under Sect. 91 (3) (a) comprises the mounting of each road wheel at the end of the horizontal arm of a bell-crank lever 1 pivoted to the tubular side frame members 4, Figs. 1, (Cancelled), 2, (Cancelled.), and 6, (Cancelled), the vertical arm of the lever projecting into the interior of the tube and being there subject to the resistance of the helical bearing springs 2 and to a one-way fluidfriction vibration damper. The tubular side frame members are stiffened by adjustable longitudinal tie-rods 13, Fig. 1, (Cancelled), connected at their ends to supports 14 and hearing upwards about the middle of their length against members 15 secured to the frame. This subjet-matter does not appear in the Specification as accepted.
Patent GB-663609-A (GB)
Title: Improvements in or relating to the manufacture of thermal regenerators
IPC: F02G1/057
Filed: 1948-06-11
Abstract: 663,609. Porous compositions. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. June 11. 1948 [June 14, 1947], No. 26673/50. Divided out of 663.537. Drawings to Specification. Class 70 [Also in Group XIII] The filling of a thermal regenerator, e.g. for a hot-gas engine or a refrigerating system, is made by embedding metal threads or wires, which may be parallel, in an enveloping material, and subsequently removing them wholly or in part, e.g. by melting, evaporation, oxidation or electrolysis, so as to leave continuous channels in the enveloping material. Wires at right angles to the channels may be left in the enveloping material, and for this purpose are made of metal which is resistant to the means used to remove the wires to form the channels. In one form, a fabric, the warp and weft of which are wires of different metals. is embedded in a ceramic mass and subsequently rolled up and baked Baking causes the weft wires to melt but does not effect the warp wires, which have a higher melting point. The ceramic material may contain metal particles. The wires used may be circular, polygonal, or flattened in cross-section. The diameter of the channels may be 0.25 mm. and the co-efficient of heat conductivity of the mass 1 Î 10<SP>-2</SP> cal/cm<SP>2</SP> ‹C. sec.