baber/WOPTO huggingface dataset:
Patent GB-1525792-A (GB)
Title: Collagen foil
IPC: A61K8/65
Filed: 1976-04-15
Abstract: 1525792 Cosmetic compositions comprising collagen foil CARL FREUDENBERG 15  April 1976 [19 April 1975] 15508/76 Heading A5B [Also in Division C3] A collagen foil is characterised as having a water permeability greater than 0.1 g/dm<SP>2</SP>/ min and containing at least 3% by weight water-soluble natural collagen as the sole film-forming component and further characterised by having, dispersed in the foil, a cosmetically acceptable substance selected from amino acids, synthetic peptides, proteins other than collagen, protein hydrolysates, hormones, lecithin, placenta extracts, phospholipids, tissue extracts, cells, cell extracts, vitamins, plant extracts, carotene, royal jelly and wheat germ oil. The collagen in the foil may be crosslinked with for example glutardialdehyde. The specific Example describes a collagen foil containing methionine. A further aspect of the invention comprises a kit comprising, separately packaged, a paste composition suitable for treating the skin and the collagen foil.
Patent GB-811066-A (GB)
Title: Biaxially oriented films
Inventor: HOLMES-WALKER WILLIAM ANTHONY
IPC: H02H7/12
Filed: 1956-05-18
Abstract: <PICT:0811066/IV (a)/1> <PICT:0811066/IV (a)/2> A film of a crystallizable organic thermoplastic material that has been bascially oriented is further drawn along one of the axes of the previous orientation.  Partial shrinkage may be allowed to occur during the further drawing, in a direction transverse to the drawing direction. The initial biaxial orientation may be produced by drawing a substantially amorphous film simultaneously or consecutively in two directions mutually at right angles.  In the latter method the amorphous film is preferably drawn first in the direction in which it is later to be further drawn.  The biaxially oriented film may be heat set, preferably at 150-230 DEG  C., before or after the further drawing.  Polyethylene terephthalate may be the organic thermoplastic material, which may be drawn in two directions at right angles to a draw ratio of 2:1 to 5:1 in each direction, preferably a ratio of 2.5:1 to 4:1, the draw ratios in the two directions being the same or different, and further drawn in the direction in which greater strength is required to a ratio of 1.05:1 to 4:1, preferably 1.5:1 to 3:1. When biaxial orientation is produced by simultaneous drawing, temperatures of 70-120 DEG  C. may be used, and further drawing may be carried out at 80-200 DEG  C.  Using consecutive drawing, corresponding temperatures may be 70-90 DEG  C. for initial drawing in the direction in which the film is later to be further drawn, 80-90 DEG  C. for the drawing at right angles thereto, and 100-220 DEG  C. for the final drawing.  Polyethylene terephthalate films treated in this way have relatively high tensile strength in one direction, coupled with adequate strength in the transverse direction, and are particularly useful as photographic film base. As shown in Fig. 1, a flat film 1 is drawn longitudinally between rolls 2, 3, then transversely in stenter 5.  Further longitudinal drawing takes place between rolls 7, 8, and the film then passes to a heat setting oven 9 and an edge-trimming device 10.  In Fig. 2, a tubular film 11 is stretched longitudinally between nip rolls 12, 16, and simultaneously transversely at 15 by the pressure of air introduced through probe 13, the film being heated to drawing temperature by heater 14.  The film is further heated by heater 17 and further stretched longitudinally between nip rolls 16, 18, partial transverse shrinkage being obtained at 20 by regulation of the pressure of air introduced through probe 19. Heater 17 also serves to heat-set the film, which is slit after passing nip rolls 18, and then wound.
Patent GB-707656-A (GB)
Title: Improvements in or relating to differential amplifiers
IPC: H03F3/36
Filed: 1951-07-02
Abstract: 707,656. Valve amplifying circuits. GENERAL ELECTRIC CO., Ltd., and BLOCH, A. July 2, 1952 [July 2, 1951], No. 15660/51. Class 40 (6) A differential amplifier for amplifying a small difference of potential between two points whose potentials may vary with respect to a reference, e.g. earth, potential, and comprising two matched valves having their cathode circuits connected to a common point and their grids connected to respective ones of the two points and means responsive to the difference between the anode currents in the two valves, further comprises means for applying a potential to the common point in the cathode circuits such that the gridcathode potential of each valve is kept at a small value and the valves consequently operate over linear portions of their characteristics. As shown in Fig. 1, the differential amplifier comprises valves 1, 2 to which the potentials at the points 6 are applied. The valves operate as cathode followers to provide an input to the valve 7 whose anode current is measured by the meter 8, the tapping on resistor 3 being so adjusted that this anode current is dependent solely on the difference between the anode currents of valves 1 and 2. The cathode resistors 3, 4 are connected together and to the cathode of a further valve 9 whose grid is also connected to one of the points 6. The common point to which the resistors 3, 4 are connected is consequently maintained at a potential close to that of the grids of the valves 1 and 2 so that these valves operate in a linear fashion independently of the difference of potential between the points 6 and earth. In Fig. 2 (not shown) is illustrated a modification comprising a further valve whose control grid is connected to that of valve 1, the common point of resistors 3, 4 being connected to the mid-point of a potential-divider circuit connected between the cathodes of the further valve and of valve 9 In Fig. 3 the differential amplifier is used as a null detector for an A.C. bridge, the common point of the resistors 3, 4 being connected to a point E between two impedances connected across one diagonal AC of the bridge and so chosen that the potentials at D and E are substantially equal.
Patent GB-1498076-A (GB)
Title: Nitro dyes of the acridone class their manufacture and their use
IPC: C09B51/00
Filed: 1975-04-16
Abstract: 1498076 Acridone dyes CIBA-GEIGY AG 16 April 1975 [17 April 1974 19 Nov 1974] 15669/75 Heading C4P The invention comprises dyestuffs free from water-solubilizing groups and having the general formula wherein p is 1 or 2, R is a straight chain alkylene radical optionally interrupted by sulphur or oxygen atoms of a branched alkylene radical optionally substituted by hydroxy groups, R, is an optionally substituted aryl or benzyl group, X is oxygen or sulphur, rings A and B may have further non-ionic substituents and ring A may have a fused benzo ring. R is preferably They are prepared by reacting an acridone compound of the general formula wherein X, is F, Cl, Br, nitro or C 1 -C 4  alkoxy and rings A and B may be substituted as above with an hydroxy compound of general formula wherein p, X, R and R 1  are as above optionally in presence of an acid acceptor or in the absence of an acid acceptor with an alkali metal salt of the hydroxy compound. The dyes give yellow to orange shades on polyesters, polyamides, polyolefins, cellulose di- and tri-acetates, and are used to dope-dye cellulose esters and to colour lacquers, oils and waxes.
Patent GB-812917-A (GB)
Title: Improvements in photosensitive members
IPC: G03G5/043
Filed: 1955-06-01
Abstract: 812,917. Photo-conductive devices. BATTELLE DEVELOPMENT CORPORATION. June 1, 1955 [June 17, 1954], No. 15688/55. Class 37. A photo-sensitive member for xerographic and other purposes comprises a photoconductive layer 11 of at least 10<SP>13</SP> ohm cms. resistivity and at least 20 Á thick, overlying a P- or N-type semi-conductor layer 12 of power resistivity on a conductive backing layer 13. The photo-conductive layer may consist of selenium, sulphur, anthracene, cadmium oxide, cadmium sulphide, zinc oxide, zinc selenide, or a selenium-tellurium alloy. The semi-conductor may consist of selenium with donor impurities such as As, Bi, Sb, Ag or Te or acceptor impurities such as any of the halogens. The conductive backing may consist of a low work function metal such as Na, Mg, Be or Al, or a high work'function metal such as Cu, Pb, Au or Ag, or conductive glass and may consist of a plate, flexible film or cylinder, and be transparent or opaque. In one example a layer ¢ Á thick of selenium plus chlorine (one part in 10<SP>6</SP>) is deposited on an aluminium base plate and covered with a layer of pure selenium 50 Á thick. In another example a layer 1 Á thick of selenium plus antimony is deposited on a lead plate and covered with a layer 20 Á thick of pure selenium. A second semi-conductor layer of opposite type conductivity may also be included adjacent the first semi-conductor layer.
Patent GB-828565-A (GB)
Title: Improvements in or relating to wave guide impedance branches
IPC: H01P5/04
Filed: 1957-05-17
Abstract: 828,565. Waveguide impedances. WESTERN ELECTRIC CO. Inc. May 17, 1957 [May 21, 1956], No. 15755/57. Class 40 (8). A hollow waveguide 6 of rectangular crosssection has an L-shaped conductive element or rod 9 supported on one wall 7; the effective length of the supporting portion 12 being an odd integral of quarter free space wavelengths and that of the remainder 13 being a half freespace wavelength at the operative frequency. The waveguide transmits the T.E. mode with its electric field E linearly polarized perpendicular to the wider walls 7 and 8. The rod which is rotatably and slidably connected to wall 7 at 10, is coupled to the field by section 12 and forms an impedance branch, being resonant when section 13 is a half-wavelength long, Fig. 2. In addition to rod 9, rods 18 and 19 in the same transverse plane may be added to vary the characteristics and they may be spaced from rod 9 by more than a quarter-wavelength; rod 19 having, if required, a reactance opposite in sign but equal in magnitude to that of rod 9. Rods 21, 24 and 27 may also be used in combination with rod 9, the latter being coupled to the field thereby. Conductive discs such as 14 may be fixed to the inner ends of the rods.
Patent GB-191674-A (GB)
Title: Improvements in the setting of steam boilers
IPC: F23M5/02
Filed: 1922-06-07
Abstract: 191,674. Bowden, G. H. June 7, 1922. Flues, external.-Relates to the flue walls of Lancashire and like boilers which have longitudinal and radial plates projecting on to grooves in the brickwork for preventing bye-passing of the flue gases and consists in providing reinforcing members between the brick courses, the longitudinal ones being disposed on either side of the grooves and transverse ones being connected to the longitudinals behind the grooves and also passing through holes in the plates. Back plates B are fixed to rear end of boiler A by angle irons b and slide in a groove d in the brickwork D. Between the brick courses are longitudinal reinforcing rods h and transverse rods h<1>, some of the latter passing through the openings b<l> in the plate B. The rods h, h<1> are connected together. The groove d may be packed with asbestos. Radial side plates are similarly mounted in reinforced brickwork. To close the top of the flue, the back of the boiler has bolted to it a channel iron into which depends one edge of an angle iron carried by the brickwork, the channel being packed with asbestos.
Patent GB-237417-A (GB)
Title: Improvements in or relating to automatic temperature regulators
IPC: H05B1/02
Filed: 1924-07-01
Abstract: 237,417. GrÚby, E. July 1, 1924. Thermostats.-An electric switch for maintaining constant the temperature of a flat-iron, an antiseptic bath, or other electrically heated apparatus or for breaking the circuit permanently at a predetermined maximum temperature comprises contacts 10, 12, Fig. 1, which are separated or brought together by the sliding movement on a rod 21 of a ring or collar 23 which is connected by rods 24<1>, 24<2>, Fig. 3, with a pair of thermostatic elements 26<1>, 26<2>. The contact 12 is mounted on a pivoted arm 11 embracing an insulating sleeve 34 on the rod 21, and the circuit is normally closed by a spring 31<1> bearing against a shoulder on the rod. As the temperature rises the slider 23 is freely moved downwardly owing to the expansion of the elements 26<1>, 26<2> until, at the predetermined maximum temperature, it engages an adjustable block 22 whereby the rod 21 is moved as a whole and the heating circuit interrupted. At the upper end of the rod is arranged a rotatable knob 16 having a projecting stop 16<1>, which may be so positioned as to engage under a spring finger 20 when the rod 21 is depressed, thereby effecting a, permanent rupture of the heating circuit, or, by giving the knob a quarter turn, the spring 31' may be allowed to return the rod 21 and restore the heating circuit when the temperature falls again, a constant temperature being thus maintained. An indicating pointer 18 may be connected to the block 22 for setting the apparatus to a definite temperature and a second pointer 14 may be operated by the arm 11 to indicate when the heating-circuit is broken. A manual breaking of the circuit may be effected by depressing the knob 16. The thermostatic elements may consist either of hollow slightly curved plates filled with a liquid, an alloy or air, or of uni-metallic or bi-metallic strips, or, in a modified construction described, of cylinders filled with expansible liquid and fitted with pistons which are connected to the rods 24<1>, 24<2>.
Patent GB-1381347-A (GB)
Title: Boiler
IPC: F24H1/44
Filed: 1972-04-06
Abstract: 1381347 Boilers; boiler stores ROHLING KG KESSELFABRIK MOHNETAL 6 April 1972 [6 April 1971] 15896/72 Headings F4A and F4W A boiler comprises a combustion chamber 10 having a burner 9 opposite a concave flame deflector wall 2 which in use deflects a substantial portion of the flame from the burner below the burner, the waste gas outlet 17 from the chamber being above the wall. As a result of the downward deflection of the flame the area on which the flame impinges is increased and any products of incomplete combustion rise through the flame and are consumed. The concave wall 2 defines a space 7 for water to be heated, a further space 16 being provided at the roof of the combustion chamber. Further boiling tubes 14, Fig. 6, may extend across the chamber in or below constriction 13 between the wall 12 containing the burner and the upward extension 4 of the wall 2. There may be baffles (15), Fig. 5 (not shown), between the tube 14 and the wall 4, and a baffle (21) in the flue 17. The flue may be divided by water sections 18, Fig. 6, extending downwards from the section 16 almost to the wall 6, or by sections (19), Fig. 7 (not shown), connecting the sections 7 and 16.
Patent GB-968033-A (GB)
Title: A new or improved power tong
IPC: E21B19/16
Filed: 1961-05-02
Abstract: 968,033. Measuring torque. BORG-WARNER CORPORATION. May 2, 1961 [May 12, 1960], No. 15933/61. Heading G1W. [Also in Division B3] In a device for screwing up and unscrewing rods or the like the section 17 of the rod is held by a wrench 16 and section 18 is screwed on to section 17 by jaws 53, 54, the torque during screwing up being indicated on a gauge 128 actuated by a hydraulic piston 126 which co-operates with wrench 16.
Patent GB-172673-A (GB)
Title: Improved process of and apparatus for preserving fruits, vegetables and other plant tissues and organic material
IPC: A23B7/148
Filed: 1920-06-12
Abstract: 172,673. Imperial Trust for the Encouragement of Scientific & Industrial Research, and Kidd, F. June 12, 1920. Air, treating; controlling and regulating ventilation; forced ventilation; ventilators; valves and valve apparatus.-Fruit, vegetables, &c. are preserved by storing in chambers the atmosphere in which contains carbon dioxide and oxygen each in any desired proportion from 0 to 20 per cent, and is from 70 to 90 per cent saturated with water vapour. Fig. 1 shows a chamber a in which these conditions can readily be maintained. It is airtight with walls of non-conducting material and double doors. One door m is of rubber in a frame n, the other o is a sliding door with pivoted bolts. Ventilating openings are provided with sliding shutters, which may be of the form shown in Fig. 6, the openings v being of tapered form, with tapered movable blocks w. For regulating the quantity of moisture in the air there is provided outside the chamber a a vertical trunk b so constructed as to exchange heat readily with the external air, and communicating with the chamber a at the top and bottom and at opposite ends as shown. Air from the chamber a is circulated through the trunk b by a fan l or otherwise, and any excess of moisture is condensed and collected in a vessel d. Appliances g, h, are provided for determining the amount of oxygen and carbon dioxide in the air in the chamber a. It is stated that by the use of these regulating devices the air in the chamber a can be maintained in the desired proportions by the respiration of the contained vegetables, but gases can be introduced from without if necessary.
Patent GB-1045484-A (GB)
Title: Improvements in sight-testing apparatus
IPC: A61B3/04
Filed: 1962-04-26
Abstract: 1,045,484. Sight-testing apparatus. D HUMPHRISS. April 19, 1963 [April 26, 1962], No. 16022/62. Heading G2J. A sight-testing chart, particularly for use with the frame described in Specification 1,045,485 having lenses, a prism and a filter pivotable selectively in front of the eyes, comprises a dark background 12 on which are disposed a light-coloured rectangular framelike motif 13-16 and a bright area 17 outside the motif, the arrangement being such that in use the longer arms 13, 14, of the motif are horizontal and the shorter ones 15, 16, vertical, with the bright area 17 below the motif.
Patent GB-240904-A (GB)
Title: Improvements in and relating to vapour generators intended particularly for vaporising mercury
IPC: F22B5/00
Filed: 1924-07-04
Abstract: 240,904. British Thomson-Houston Co., Ltd., and Samuelson, F. July 4, 1924. Vapour engines.-In a mercury vapour generator of the rotating tube type, each tube is formed with compartments so shaped that their circumferential length in proximity to the inner wall of the tube is greater than at points nearer the centre of the tube. The generating tube 1 mounted in ball bearings 3 is fitted with a cage 6 having compartment 7 for holding mercury formed in its outer surface. The circumferential width of each compartment is reduced towards the centre of the tube. Mercury supplied through a pipe 4 may be fed at any desired point along the tube by means of a central tube 9 which opens into an annular passage 10 in communication with the adjacent compartment 7. Ducts 13 are formed between the compartments. Vapour is taken off through a pipe 5. In modifications, the compartments are formed by balls or rollers supported against the inner surface of a tube.
Patent GB-1198765-A (GB)
Title: Composition and process for Inhibiting Corrosion of Zinc Surfaces
IPC: C23C22/30
Filed: 1968-04-03
Abstract: 1,198,765. Chromating zinc surfaces. JOHNY LYSAGHT (AUSTRALIA) Ltd. April 3, 1968 [April 20, 1967], No. 16140/68. Heading C7U. Zinc or zinc coated articles, e.g. galvanized steel, are chromated in a solution (pH 2À9 to 3À8) in which some hexavalent chromium has been reduced to trivalent, and the pH is controlled by adding chromates, dichromates hydroxides or carbonates of Na, K, Ca, Mg or Zn.
Patent GB-985277-A (GB)
Title: High impact, heat and chemical resistant polymer compositions
IPC: C08L27/24
Filed: 1962-04-27
Abstract: Compositions comprise 100 parts by weight of chlorinated polyvinyl chloride having a density in the range 1.53 to 1.59 gms./c.c. at 23 DEG  C. and at heat distortion temperature of at least 95 DEG  C., and 2 to 10 parts by weight of a homogenously chlorinated polyolefin containing 5 to 50 weight per cent of chlorine.  The preferred polyolefin is a high density, linear polyethylene.  The compositions may contain conventional stabilizers and may be used in making pipes, conduits and containers which are impact, heat and chemical resistant.  The polymers may be blended in solution or emulsion. In examples, blends of chlorinated polyvinyl chloride and chlorinated polyethylene are prepared, and compounded with barium/cadmium salts of higher fatty acids and calcium stearate.  Specifications 828,379, 834,824, 893,288 and 949,895 are referred to.
Patent GB-420910-A (GB)
Title: Improvements in or connected with order-telegraph apparatus particularly for ships and the like
IPC: G08B9/00
Filed: 1933-06-06
Abstract: 420,910. Electric signalling systems. MECHANS, Ltd., and HASTINGS, G. W., Scotstoun Iron Works, Scotstoun, Glasgow. June 6, 1933, No. 16163. [Class 40 (i)] In an order-telegraph apparatus having a separate wire for each indication, both transmitter and receiver operate through Geneva stop mechanism. A reversing switch is provided at the transmitter to ensure rotation of the receiving motor in the correct direction and an electric brake may be fitted to prevent the receiver motor overrunning. The transmitting switch may comprise a shaft carrying a number of staggered radial arms which engage their respective contacts in turn as the shaft is rotated whilst the gap track at the receiver may be on either the face or the edge of a rotatable disc. The reversing switch is indicated in Fig. 2 and comprises a cylinder carrying three contact segments. The cylinder which is driven from the transmitting handle is moved endwise by the pin and slot coupling F so that the operating circuit passes through brushes H, G, H1, G1, with the cylinder in the position shown and through brushes G, H1, G1, H2 when the cylinder has been moved to the left for reverse motion. The brake mechanism is indicated in Fig. 10. Magnets 55 are connected in circuit with the receiver motor 38 so that when the motor is energized the magnets attract their armatures and hold arms 54 from the wheel 53. When the motor circuit is broken the magnets release so that the arms are swung towards the wheel 53, by the springs shown, to hold the motor shaft 39. The transmitter may have three dials, one on each side of the instrument and a third 33, as shown in Fig. 6, facing the operator. A lamp 34 for signalling receipt of an order may also be provided.
Patent GB-1505965-A (GB)
Title: Electrical cooking appliance
IPC: H05B3/68
Filed: 1976-04-21
Abstract: 1505965 Contact grills NATIONAL PRESTO INDUSTRIES Inc 21 April 1976 [7 July 1975] 16198/76 Heading A4A [Also in Division H5] An electric cooking appliance has concave thermally insulating base 20 and lid 22 within which  are thermally conducting (cast aluminium) pan 32 and lid 62, the pan having a handle 56 that fits between handle parts 28,68 attached to the thermally insulating based lid and drainage apertures 48 leading into the insulating base 20, the lid having a surrounding rib 40 that engages a groove in the pan to transfer heat when the lid closes the pan, and only the lid has an electric resistance heating element 120 within the rib 40. The heating element 120 may be embedded, Fig. 2 or retained by projections Fig. 1 3 (not shown) within the rib. It is connected to a plug via a thermostat 134. The two parts are hinged together by a releasable hinge 30 with a clip 160 at the end of the handle to hold the assembly closed.