baber/WOPTO huggingface dataset:
Patent GB-1029651-A (GB)
Title: Improvements in or relating to fibrous sheet material
Inventor: DAWSON PETER HUGH VERNON
IPC: D04H1/435
Filed: 1961-03-01
Abstract: A method of preparing a non-woven web of fibres which may be used as a substitute for leather, comprises needling a batt of fibres to cause them to become intermately intermingled, bonded the fibres together by impregnation with a bonding medium and splitting the batt to provide at least two separate sheets.  The splitting may alternatively be done prior to the impregnation and the batt can be split to provide a plurality of sheets in addition to the two separate exterior sheets.  The batt may be formed by cross laying carded webs of fibres or by air laying and the fibres are preferably synthetic fibres of high tensile strength selected, e.g. from linear polyester fibres, nylon, polypropylene and acrylic staple fibres or may be a mixture thereof.  Fibres of natural or synthetic origin and of a lower tensile strength, e.g. viscose, wool, regenerated protein fibres or alginate fibres may also be included.  A staple length of 3 to 7 inches is preferred hub yarns formed of twisted strands of undefined staple length and fibres obtained from bulked yarns may be used.  In order to provide water vapour permeability some of the fibres are preferably water sensitive unless a water sensitive bonding agent has been used and such water sensitive fibres may be embedded in the batt in the form of flock.  Suitable bonding agents are flowable compositions based on synthetic rubber, a polyurethane, polyvinyl alcohol reacted with sufficient formaldehyde to form a product insoluble in water but capable of absorbing and transmitting water vapour, a solution of collagen or a water sensitive polyurethane.  The proportion of bonding agent to fibres may be from 20 to 150 parts by weight of bonding agent to 100 parts of total fibre and the material formed according to the invention may be further treated on one side with an additional bonding agent such as a rubbery polyester or polyurethane and may be coated with any conventional leather finish to give a wear resistant surface.  To assist the needling operation the batt may be impregnated with a lubricant.
Patent GB-921299-A (GB)
Title: A process for the automatic reproduction of tape recordings
IPC: G11B31/00
Filed: 1961-03-01
Abstract: 921,299. Controlling tape-recorders. A. FELS, and R. E. HUPPERT. March 1, 1961 [March 5, 1960], No. 7471/61. Class 40 (2). The absence of sound or " hiss " output from the pick-up of a jukebox, when the pick-up is raised or muted by the juke-box mechanism, starts an associated tape recorder which inserts announcements and the like between successive juke-box records. A signal, tapped off at the pre-amplifier stage 22 of the jukebox, is amplified at an intermediate stage 28 in the tape-recorder, limited by known means at 31, rectified and used to bias off a relay 3 associated with relays 5, 10. Capacitors 6, 7 are alternately charged from a source 32 and the absence of output from 22, or from the tape-head 26 operates the relay 3 to change over the loud-speaker connections at 15 alternately. In the dotted position of contact 11, power is supplied to means 12 energizing the tape-drive. In a modification (Fig. 2, not shown) provision is made for rewinding the tape after each announcement by contact means associated with tape-foils. Conveniently, the circuitry to the LHS of line 1, including the tape-recorder, is installed as an additional unit in an otherwise conventional juke-box.
Patent GB-127839-A (GB)
Title: Improvements in or relating to Apparatus for Rifling Guns and Firearms.
Inventor: RENAULT LOUIS
IPC: B23D37/16
Filed: 1917-05-25
Abstract: 127,839. Renault, L. Nov. 23, 1916, [Convention date]. Addition to 127,679. Rifling; broaching; rifling-bars. -In rifling in the manner claimed in the parent Specification, a cutter-head is used having cutters which can be withdrawn from contact with the work during the return stroke. Figs. 3 and 4 show one construction in which the cutting-tools 8 slide in ways having inclined bottoms, so that when the cutters are moved in one direction, they recede within the casing 18, and when moved in the other, they project, into the working position. Movement in one direction is effected by rotating a toothed ring 10 which has camsurfaces acting on rods 14 in contact with the cutters. Springs 16 return the cutters when the ring is rotated in the other direction. At each end of the travel, the ring 10 is rotated in one or other direction by a toothed sector 23, Fig. 2, which is actuated by the means shown from a rocking shaft 19 and operated by other means (not shown). To enable the cutter-head to cut a great number of grooves, means are provided for indexing it at the end of each working traverse which momentarily disconnect the driving- gear of the wheel 2, Fig. 1, that produces the rifling movement of the cutter-head. At the end of the operative travel of the cutter-head, a tappet 33 on the screw 1, Fig. 1, rocks a lever 32 and, through the gear shown, disengages a clutch 27, Fig. 7. On the return stroke, the tappet 33 rocks the lever 34 and puts the clutch in gear again.
Patent GB-1469364-A (GB)
Title: Intercranial pressure transducer
IPC: A61B5/03
Filed: 1975-02-24
Abstract: 1469364 Intercranial pressure transducer ETAT DE VAUD 24 Feb 1975 [7 March 1974] 7579/75 Heading G1N(E) In an intercranial pressure transducer of the passive type, a movable magnet, in a capsule 2 fitted into a bore 9 in the skull 11, is moved by the hydrostatic force within the head acting as an elastic diaphragm 5 which is in contact with one end of the movable magnet. The hydrostatic pressure within the head can be ascertained by applying an alternating magnetic field Fig. 4 (not shown) to the vicinity of the capsule. The field strength is increased until the resulting audible "rattle" of the magnet within the housing reaches maximum intensity, when the field strength will bear a definite relationship to the hydrostatic force. The movement of the magnet may be constrained to an axial direction by means of a ruby rod 3 inside a central bore of the magnet 1, or by means of pianowires 27, 28, 27', 28' attached to each end of the magnet, Fig. 5, also Fig. 6 (not shown). The "inner" side of the capsule is provided with spaced lugs 7, also Fig. 2 (not shown) that slide in grooves 10 of the bore 9 so that on twisting the capsule when it is fully inserted into the skull a "bayonet" type of fitting is achieved. In Fig. 3, a further compartment 15 communicating with a hollow needle 16 is added. The hollow needle transverses the dura matter close to the skull. This allows the cerebral fluid to flow under its own pressure into the compartment 15 where it can act on the diaphragm 14 as before. The magnetic field applied to the capsule can be a pure alternating field or a combination of a steady and an alternating field. In both cases the strength is increased until the maximum noise is reached. This may be monitored by a microphone in one of the feet of the magnetic field producing device Fig. 4 (not shown). In an alternative embodiment a "pre-restraint" force on the magnet 1 may be generated by a ferromagnetic ring 33, to draw the movable magnetic towards the diaphragm 5 with a force opposed to the hydrostatic force.
Patent GB-116129-A (GB)
Title: Improvements in Apparatus for Scouring, Dyeing, or otherwise Treating with Liquor, Wool, Yarn, or other Fibrous Material.
Inventor: WALKER HUBERT
IPC: D06B3/02
Filed: 1917-05-26
Abstract: 116,129. Walker, H. May 26, 1917. Passing materials through fluids. -In scouring. dyeing, or otherwise treating wool, yarn, or other fibrous materials. the wool &c. is carried by an endless travelling apron R through the liquor in a vat C and beneath perforated cylinders A, partly immersed in the liquor and containing transverse troughs a<2>, which cause agitation of the liquor. The wool is held on the apron B by endless tapes a<1>. The aprons and tapes pass together between rollers b<1> situated between the cylinders A, and discharge the wool to squeezing-rollers E, E<1>, the liquor from which passes into a trough c and through a pipe c<1>, to a compartment c<2> and filter c<3>, and may be returned to the vat C.
Patent GB-153523-A (GB)
Title: Improvements in or relating to the manufacture of wrought iron
IPC: C21C3/00
Filed: 1920-03-15
Abstract: 153,523. Elliott, E. E. March 15, 1920. Purifying and refining. -Wrought iron is made by heating a charge of pig and scrap mixed with iron ore or oxide in a wrought iron or steel container constructed so as to facilitate the escape of slag and gases formed during the boil. The container consists of a divided shell or casing A resting upon a base-plate B and held in position by lugs E, and eventually unites with the charge. According to the Provisional Specification, acetic acid may be used as a refining-material.
Patent GB-657871-A (GB)
Title: Improvements in and relating to apparatus for coating hollow glassware
IPC: C03C17/25
Filed: 1949-03-21
Abstract: 657,871. Vapour burners; electric lamp bulbs. BRITISH THOMSON-HOUSTON CO., Ltd. March 21, 1949, No. 7636. Convention date, March 27, 1948. [Classes 39(ii) and 75(i)] Apparatus for providing the inner surface of an electric lamp bulb or other hollow glassware with a light-diffusing coating by the deposition of particles of a fume produced within the hollow body, as described in Specification 653,323, comprises a burner with a hollow stem portion 28, Fig. 3, containing a combustible liquid, e.g. ethyl silicate, and surmounted by a removable cap 23 provided with a closed upper end and peripheral apertures 27, these apertures being adjacent to a hollow head 26 formed by flanging the upper end of the stem 28 and a surrounding tube 35 which provides an annular passage for a gas, e.g. oxygen, which escapes laterally through holes 25 in the head 26. The flame resulting from the combustion of the ethyl silicate is discharged between the cap 23 and head-flange 24, and the fume is drawn into the contiguous radial stream of oxygen issuing from the holes 25. As shown, the cap 23 has a stem 27a provided with three relatively large apertures 27 which are staggered with respect to three groups of openings 25 in the adjacent head 26. In a modification, Fig. 4 (not shown), the groups of openings through which the oxygen passes are associated with an annular deflecting ring provided with an oblique upper edge. In applying the coating of the fume the burner is located within the lamp bulb or other body which is mounted on a holder arranged to rotate at constant speed and also to have a cam-controlled vertical movement. Ethyl silicate is fed to the hollow stem of the burner from a gravity bottle connected to it by a flexible tube. The Specification as open to inspection under Sect. 91 comprises also a burner adapted to project the fume upwardly and outwardly from an annular space 49, Fig. 6, (Cancelled), formed by a frusto-conical cup 57 within a well 62 in a head 46 provided with a tubular stem 54 through which ethyl silicate is fed. The vaporized liquid enters the space 49 through lateral apertures 48. Oxygen is fed between tube 54 and a surrounding tube 55 and after passing through longitudinal grooves 56 into a space between the head 46 and an outer shell 50, has a swirl imparted to it by a helical ridge or partition 53 between the members 46 and 50. This subject-matter does not appear in the Specification as accepted.
Patent GB-1049434-A (GB)
Title: Oxytetracycline
IPC: C12P29/00
Filed: 1965-02-22
Abstract: Oxytetracyline is produced by cultivating Streptomyces henetus (I.M.I. 109532; I.M. 3872) nor. spec. under aerobic conditions in a nutrient medium.  A typical medium contains starch, corn steep liquor, calcium carbonate, casein, (NH4)2SO4, K2HPO4 and water. The pH of cultivation is 6.1 to 8.0 and temperature is 24 DEG  to 37 DEG C.  The broth is acidified to pH 2 to 2.5, clarified, treated with oxalic acid, clarified, adjusted to pH 8-8.5, extracted with a mixture of tricresol and CCl4, the organic phase separated, treated with aqueous HCl and acetone and oxytetracycline recovered from the aqueous phase at pH 7.0. The oxytetracycline may be converted into a salt with a mineral or organic acid, e.g. citric or tartaric acid. Other methods of isolation and purification are (a) solvent extraction with, e.g. butanol, (b) adsorption on, e.g. activated carbon, (c) precipitation with substances capable of forming insoluble derivatives, e.g. N,N1-malonylurea and sulphates.
Patent GB-623010-A (GB)
Title: Improvements in conveyor belts
IPC: F16G3/02
Filed: 1946-03-12
Abstract: 623,010. Endless-belt conveyers. MATHIEU, S. B. March 12, 1946, No. 7682. Convention date, March 16, 1945. [Class 78 (i)] [Also in Group XXIV] In belts of the kind in which a reinforcement is embedded in a composition mainly comprising rubber, the belt is made up of short identical elements having connecting means moulded integrally therewith at their extremities. Each element is reinforced in its lower part by longitudinal threads 1, Fig. 2, which are interlaced with transverse threads 2. These threads may be made of steel, brass, cotton, rayon or the material known by the Registered Trade Mark " Nylon." The end loops 3 of the threads 1 are turned into a vertical plane and embedded during moulding in teeth 5 formed at the ends of the element. These teeth are formed at the ends of the reinforced parts of the belt and are covered by tongue-like extensions 12 of the upper parts of adjacent elements. A brass eye 4 is inserted in each loop and receives the connecting strip 11 of cold-hammered brass. This strip is initially more than twice as long as the width of the belt and consists of two portions of different cross-sections. The part of smaller cross-section can pass readily through the eyes 4 even when the latter are slightly out of alignment, but the larger part fits snugly in the eyes. The thinner portion is pulled right through the eyes until a rivet 16 passed through the end of the thicker portion bears against the last tooth 5b, Fig. 9. The thinner portion is then cut off and the projecting end is perforated and provided with a rivet similar to the rivet 16. The top layer 6 of each element consists of natural or synthetic rubber and its face may be smooth or ribbed. When the element is in the form of a trough its thickness may decrease evenly from the centre line to the edges.
Patent GB-1205273-A (GB)
Title: Servo control
IPC: G05D3/14
Filed: 1968-02-16
Abstract: 1,205,273. Electric positional control systems. AMERICAN MACHINE AND FOUNDRY CO. Feb.16, 1968 [March 27, 1967], No.7696/68. Heading G1N. Apparatus for sequentially positioning a member to a plurality of discrete positions comprises an automatically rebalanced bridge network with selectable pre set potentiometer transmitters 108- 124 operating through differential amplifier 112 and drive means 128 to position the member and rebalance the network by adjusting a common receiver potentiometer 130. Selection is effected by a cam element 134 driven by clock drive 136. For the first position, determined by the slide of potentiometer 108, switch 12 is closed by cam element 134 to energize relay 26 which connects potentiometer 108 to amplifier 112, and the drive means 128 positions the controlled member accordingly. Closing switch 12 also energizes relay 18 and charges capacitor 20. Contacts 22, 24 open, until the charging current falls to below energization level for relay 18, and then reclose. This completes a holding circuit for relay 26 through diode 36 and contacts 28, 30 so that switch 12 may be opened, but the drive means 128 continues to operate. Subsequent rotation of cam 134 closes switch 38 and repeats the above procedure, initially breaking the holding circuit for the previous relay 26 when relay 18 is first energized and contacts 22, 24 are opened. The controlled member is thus sequentially positioned in accordance with the settings of potentiometer 108-124. A homing position, set on potentiometer 124, is manually selectable by switch 126.
Patent GB-419916-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B69/12
Filed: 1934-03-12
Abstract: 419,916. Sewing - machines. PFAFF AKT.-GES., G. M., 140, Wittelsbacherstrasse, Kaiserslautern, Bavaria, Germany. March 12, 1934, No. 7820. Convention date, March 31,1933. Addition to 326,701, [Class 112]. [Class 112.] The casings described in the parent Specification are modified to house an electric motor, and, if desired, the starter regulator and plug connector. The rear casing section 3 is provided with an extension 4 for housing the motor 7, an extension 6 for the plug connector 9 and an extension 5 for the starter regulator 8. The extensions 4, 5, 6 may be cast, moulded or pressed integral with the casing section 3, or may be formed separate and secured thereto by screws or bolts. The casing may be made of synthetic resin.
Patent GB-269153-A (GB)
Title: Improvements in and relating to glass furnaces
IPC: C03B5/43
Filed: 1927-03-22
Abstract: 269,153. Hartford-Empire Co., (Assignees of Willetts, P. G.). April 6, 1926, [Convention date]. Linings; hearths. - A glass melting tank is lined with blocks having interlocking corrugations forming tortuous joints, the blocks being so arranged that, proceeding from the glass-contacting face of the wall (the right as seen in Fig. 3), the joints lead first imvards and then downwards. The blocks shown are corrugated on their upper and lower faces and at their ends, the two remaining faces 5, one of which is in contact with the glass, being plane. The corrugations on opposite faces are preferably complementary.
Patent GB-224151-A (GB)
Title: Improvements in and relating to preserving and packing eggs for transit
IPC: A23B5/00
Filed: 1924-03-28
Abstract: 224,151. Walsh, R. March 28, 1924. Drawings to Specification. Preserving eggs.-Eggs are packed in a container which contains or is lined with vielding material and is filled with lime water, a salt solution, or other liquid of a density corresponding to that of the eggs.
Patent GB-557983-A (GB)
Title: Article attaching machine
IPC: D05B65/00
Filed: 1942-06-10
Abstract: 557,983. Sewing-machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). June 10, 1942, No. 7923. [Class 112] In a button-attaching machine as described in Specification 364,891, the fixed blade 73 of the needlethread cutters is mounted on the table plate 69 upon which the arm 66, carrying the thread deflecting blades 63, 64, is pivoted and the blade 73 is covered by a guard G with a down-turned end g which overlies the cutting edge 73x and prevents the arm of the extended needle thread loop from riding on the cutting edge prior to the arrival of the moving cutting edge 72 on the blade 63. The device for interlocking the presser-bar and the stop-motion is also varied.
Patent GB-164859-A (GB)
Title: Improvements in change of height indicators for aircraft
IPC: G01L27/00
Filed: 1920-03-17
Abstract: 164,859. Rope, F. M. March 17, 1920. Pressure and vacuum gauges; rate of change of pressure, measuring.-Relates to instruments for indicating the speed of ascent or descent of aircraft of the type wherein differences in pressure between the external atmosphere and the air in a heat-insulated chamber communicating with the atmosphere through a leakage device, are indicated bv a manometer. A heat-insulated air chamber 1 communicates with the external atmosphere through a capillary tube 10 and a filter 9. The lower side of a pressure-gauge 6, of spring-controlled diaphragm type, communicates at 11 with the interior of the air-chamber 1, and the upper side 5 of the gauge communicates through pipe 14 directly to the outer atmosphere through the filter 8. Pressure changes in the chamber 1 lag behind changes in the atmosphere, thereby operating the pressuregauge and giving an indication on the graduated dial 7. The pressure-gauge may, in a modification, be fixed externally to the air chamber, and a length of wire may be inserted in the capillary tube 10 in order to increase the sensibility of the instrument.
Patent GB-364934-A (GB)
Title: Improvements in or relating to electric batteries
IPC: H01M6/44
Filed: 1931-03-14
Abstract: 364,934. Cases for electric battery cells. EVER READY CO. (GREAT BRITAIN), Ltd., Hercules Place, Holloway, and SHEPPARD, A. H., Beechwood, Broad Walk, Winch more Hill, both in London. March 14, 1931, No. 7952. [Class 18.] To ensure the correct positioning of the cells in a casing 5 the latter is provided with a closing flap 18 which is provided with apertures or notches 19 which register with the negative terminals of the cells and with a notch 20 for the positive terminal of the end cell. The casing may be formed from a blank as shown in Fig. 2. The flap 18 may be bent so that its horizontal portion lies below the top edges of the casing to form a recess 22 for the reception of sealing material as shown in Fig. 4.
Patent GB-777806-A (GB)
Title: Improvements in or relating to television receivers
Inventor: COPE JOHN EDWARD
IPC: F02K1/60
Filed: 1954-01-15
Abstract: 777,806. Automatic gain control. PYE, Ltd. Jan. 15, 1954, No. 8148/56. Divided out of 777,801. Drawings to Specification.' Class 40(5) The subject-matter of this Specification is included in that described in Specification 777,801, but the claims differ. Specifications 741,572, 777,805 and 777,808 also are referred to.
Patent GB-378874-A (GB)
Title: Improved method of and means for coating or plating metallic surfaces without the aid of electrical current or heat
IPC: C23C18/16
Filed: 1931-03-17
Abstract: 378,874. Silvering. FITZGERALD, F. W. V., 27, Park Avenue North, Hornsey, London. March 17, 1931, No. 8176. [Class 93.] Metal surfaces are plated with silver by rubbing with a cloth moistened with a mixture of a liquid composition and a paste as follows : The liquid contains fullers earth, borax, strong liquid ammonia, silver nitrate, and water. The paste contains silver chloride, aqueous sodium hyposulphite, cream of tartar, sodium carbonate, an oil, such as oil of sweet almonds or oil of pinus sylvestris, fullers earth, and water. For white metals other than aluminium less cream of tartar is used in the paste, and talc or whiting is substituted for fullers earth. To obtain a more resistant coating, a solution of a chromium salt is added to the paste, after sufficient hydrogen peroxide has been added to produce an indigo blue colour.