baber/WOPTO huggingface dataset:
Patent GB-495885-A (GB)
Title: Improvements in the manufacture and production of artificial threads, filaments and the like
IPC: D01F4/00
Filed: 1937-06-08
Abstract: Artificial threads, filaments, and the like of casein are treated with acetic anhydride, and thereafter washed and dried. Catalysts such as zinc chloride may be present during the treatment and instead of acetic anhydride there can be used a substance capable of producing acetic anhydride under the conditions of treatment, such as ketene or a mixture of sodium acetate and acetyl chloride.  The threads may be stretched before, during or after the treatment.  The treatment may be applied to threads &c. which have been produced by the extrusion of casein solution into a coagulant and which have preferably been hardened, dried and air-conditioned.  It is stated that the treatment improves the insulating properties and the wet tensile strength of the casein threads and also their resistance to boiling water. Reference is made in the Provisional Specification to the treatment of casein threads &c. with acetylating agents in general.
Patent GB-752594-A (GB)
Title: Improvements in liquid level indicators
Inventor: MORSCHEL ALBERT J
IPC: G01F23/66
Filed: 1954-05-28
Abstract: 752,594. Indicating and regulating liquid levels. LIQUIDIVISION GAUGE & CONTROL CORPORATION. May 28, 1954, No. 15878/54. Class 123(1) The liquid level in a tank 13 is indicated by a float 10 which is housed in a vertical column 11, connected at its upper and lower ends to the tank 13 by pipes 12, 14, and carries a magnet 15 adapted to influ- -ence an indicator member 16 of non-magnetizable material housed in a compartment 17 on the face of said column 11. Preferably the member 16 comprises a roller having tapered or conical ends, the latter moving over adjustable graduated scales 32, 33 at the two sides of the compartment 17. The float is guided within the column 11 by a pair of rollers 18, 18 mounted in spring-supported bearings 19, 20 on the magnet side of the float and by two pairs of opposed rollers 21, 22 which are mounted in like bearings 23, 24 on the other side of the float and engage, respectively, opposite sides of an inwardly-projecting V-shaped rib 29 on the wall of the column. The upper end of the column is preferably filled with an inert gas. In a modification, Fig 7, the indicating roller 16 is adapted to move along an insulated non-magnetic metal strip 48 and also a thin strip 49 of insulating and non-metallic material having non-magnetic metal contacts such as 58, 59, 60, 61, said strips being spaced and located between the scales 32, 33 and the strip 48 and contacts 58... 61 being in an electric circuit with a bell, pump &c. so as to sound an alarm at predetermined levels, or start a pump when desired.
Patent GB-107152-A (GB)
Title: An Improved Bearing.
Inventor: MCCALLUM THOMAS REID
IPC: F16C17/18
Filed: 1916-11-07
Abstract: 107,152. McCallum, T. R. Nov. 7, 1916. Bushes.-In a bearing for shafts &c., a loose intermediate bush C is formed with an annular recess at each end to receive flanges on a sleeve B fixed to the shaft and on the casing or hub A.
Patent GB-1471337-A (GB)
Title: Group-delay equalizers for micro-ave frequencies
IPC: H01P9/00
Filed: 1974-04-10
Abstract: 1471337 Microwave group-delay equalizers SELENIA - INDUSTRIE ELETTRONICHE ASSOCIATE SpA 10 April 1974 [13 April 1973] 15956/74 Heading H1W A group-delay equalizer comprises a meander transmission line and means for separately adjusting the propagation velocities associated with the odd and. even modes in such a line. It is shown that the velocity of the odd mode may be influenced by changing the capacitance existing between adjacent conductors of the line, and that of the even mode by changing the capacitance between the line and the (or each) earth plane. It is shown in the Specification that the group delay characteristic of the line may be shaped by such adjustments. The meander line 51, Figs. 12, 13, has three limbs and ground planes 48, 49. The capacitance between adjacent limbs may be adjusted by means of screws 63 and that between the line and earth by means of larger screws 62 which do not extend between the limbs. The two sets of screws may extend  respectively from opposite ground planes. In the construction of Fig. 8, the limbs of a meander line 37 (shown in section) are fixed within grooves of an upper dielectric block 34 and are slidable within corresponding grooves in a lower dielectric block 33 which is fixed to a lower ground plane 31. The upper dielectric block 34 is fixed to a conductive member 32 which supports screw mechanisms 41, 411 for separately adjusting the positions of the ground planes 30, 31. These adjustments produce changes in the capacitances effecting odd and even mode propagation as described above.
Patent GB-459999-A (GB)
Title: Improvements in book-keeping sheets for duplicating purposes
IPC: B42D12/02
Filed: 1936-06-08
Abstract: 459,999. Book - keeping sheets. KARCHER, H., 9, Obentrautstrasse, Stromberg, Germany. June 8, 1936, No. 15990. [Class 16] In an arrangement of sheets for bookkeeping purposes, the journal sheet a has a strip b of paper attached thereto near its top and bottom edges to extend over one of the booking columns on the sheet, a double-sided carbon sheet c is slipped under the strip b, and two further account sheets are placed over the carbon sheet c, the account immediately above the carbon sheet being transparent, the arrangement being such that when typing is effected on the top account sheet in the column registering with the strip b, it will be copied on the journal sheet a, but not on the back of the transparent account sheet. A statement or account sheet of smaller dimensions than the other sheets and transparent, with a one-sided carbon sheet detachably secured to its rear side with the carbon face directed upwards, can be inserted directly under the top opaque account sheet.
Patent GB-1015656-A (GB)
Title: A process for increasing the sensitivity of photographic silver halide emulsions
IPC: G03C1/10
Filed: 1964-04-17
Abstract: 1,015,656. Photographic silver halide emulsions. AGFA, A.G. April 17, 1964 [April 24, 1963], No. 16039/64. Heading G2C. Photographic silver halide emulsions are sensitized by after-ripening them at an acid pH in the presence of nitrilo-triacetic acid or salt thereof, and a water-soluble salt of gold or of a Group VIII metal having an atomic weight greater than 100. The preferred metal salt is auric chloride but complex gold salts such as potassium chloroaurate, potassium aurous thiosulphate, potassium aurous sulphite or potassium chloro-, bromo- or iodo-aurite or the corresponding sodium, calcium, strontium, cadmium or gallium salts and organic gold compounds such as pyridine trichloro-gold, ethylene-diamine-bis trichloro gold, diethylbromo-gold, diethyl gold acetone and gold thiosinamine complexes may be used. The Group VIII salt may be a chloropalladate, a chloro or bromo platinate or a chloro-rhodate, ruthenate, iridate,platinite or palladite. The emulsions may contain additional sensitizers such as polyalkylene oxides, onium compounds and sulphur compounds.
Patent GB-940486-A (GB)
Title: Process for preparing phenylalanine derivatives
IPC: C07C45/00
Filed: 1961-05-03
Abstract: a -(lower alkyl)-b -(3,4-dihydroxyphenyl)alanines of the general formula- <FORM:0940486/C2/1> where R is a straight chain lower alkyl radical are produced by reacting vanillin with a compound having the general formula RCH2NO2 in the presence of a base such as n-butylamine in an inert organic solvent such as toluene or benzene under reflux or other elevated temperature conditions, thereby producing a compound of the general formula- <FORM:0940486/C2/2> which is reacted with a reducing agent, preferably iron in an acidic medium such as aqueous hydrochloric acid, which results in the formation of compounds of the general formula- <FORM:0940486/C2/3> which is reacted at room temperature up to 70 DEG C. with ammonium carbonate and a water soluble cyanide salt such as potassium cyanide, sodium cyanide, or ammonium cyanide in an aqueous medium to form a hydantoin compound of the general formula- <FORM:0940486/C2/4> The latter is reacted with a base such as barium hydroxide, calcium hydroxide or sodium hydroxide, in an aqueous medium at elevated temperature, for example under reflux at atmospheric pressure and a temperature of about 100 DEG C., or in a bomb under pressure at about 150 DEG C. to produce an a -(lower alkyl)-b -(4-hydroxy-3-methoxyphenyl)-alanine of the general formula- <FORM:0940486/C2/5> which is hydrolysed preferably at 90-150 DEG C. with boiling aqueous hydrobromic acid containing 48% by weight HBr and the hydrobromide compound produced is converted to the free a -(lower alkyl)-b -(3,4-dihydroxyphenyl)alanine by neutralising with a base.  In an alternative method the hydantoin compound is hydrolysed directly under acid conditions, as for example with 48% hydrobromic acid at reflux temperature to an acid addition salt of e.g. hydrobromide of a  - lower alkyl - b  - (3,4-dihydroxyphenyl)alanine which is converted with a base to the free alanine. In a specific example each of the above steps is carried out in which R is methyl.
Patent GB-1347517-A (GB)
Title: Glass-fibre-reinforced zeolite granulates
IPC: C01B39/02
Filed: 1971-05-21
Abstract: 1347517 Drying BAYER AG 21 May 1971 [27 May 1970] 16193/71 Heading B1L [Also in Division C1] Water is removed from moist air using a zeolite granulate containing 0.3 to 10% by weight of glass fibres, based on anhydrous granulate.
Patent GB-835858-A (GB)
Title: Improvements in or relating to the manufacture of dead burned magnesia
IPC: C01F5/08
Filed: 1958-05-20
Abstract: Dead-burned magnesia is prepared by calcining a hydrated magnesia obtained by precipitation, which has been subjected to a water removal process to form a product containing 40-49% hydrated magnesia, calculated as MgO, and to manual or mechanical working to increase its plasticity and redistribute its water content.  The water removal and working may be effected simultaneously, for example, by passage through a screw-trough drier.  Water removal may also be effected by contact with plaster bats, or the initial filter cake may be fed to a rotary kiln, dried to the required degree, removed, subjected to mechanical working, and returned to the kiln for calcining.  The magnesia may be shaped during or after working. Specifications 482,339, 482,340, 539,027, 540,139, 571,276, 615,782 and 635,781 are referred to.
Patent GB-1209575-A (GB)
Title: Improvements in or relating to telescopic shock absorbers
Inventor: KONING ARIE ADRIANUS DE
IPC: F16F9/18
Filed: 1969-03-27
Abstract: 1,209,575. Piston-cylinder shock absorbers. A. A. DE KONING, and K. K. K. DE KONING. 27 March, 1969 [18 April, 1968], No. 16223/69. Heading F2S. In a shock absorber of the kind in which a piston 2 has one or more through passages 6, 8 and a surrounding cylinder 1 has one or more passages 13, 15 communicating with an external reservoir 12, an auxiliary annular piston 20 surrounds the rod 3 of the main piston 2. The auxiliary piston can be moved along the pistonrod by an external source of fluid pressure. The function of the auxiliary piston is to lock the shock absorber in an inoperative state: moving the piston 20 inwardly (i.e. downwardly in the drawing) will push the main piston 2 to the bottom of the cylinder and hold it there. The external fluid pressure source for moving the piston 20 may be connectible at 34 to the hollow piston-rod which communicates via a tube 29, a passage 28, a tube 25 and a passage 24 with the space 23 above the piston 20. Alternatively the piston-rod may be solid and the inlet for the external fluid source will then be either in the passage 28 or in the passage 24, in which case the tube 29 and/or the tube 25 would be omitted.
Patent GB-1316240-A (GB)
Title: Body implantable prosthetic duct
IPC: A61F2/04
Filed: 1972-04-07
Abstract: 1316240 Prosthetic ducts RHONE-POULENC SA 7 April- 1972 [7 April 1971] 16237/72 Heading A5R [Also in Division F2]  A body implantable prosthetic duct, for example an artificial ureter, comprises a tubular body 1 at least the inner and outer surfaces of which are formed from a silicone elastomer, a tubular sheath 3 of textile fabric secured by adhesive around said body near one end thereof, and retaining means at or near the other end of said body. The tubular body may have a smooth inner coating 2 of silicone elastomer and may be provided with a non-return valve 5 at one end. The retaining means may be a second textile fabric sheath 4, one end of which is rolled up to form a bead 4a by means of which the duct is stitched to the wall 9 of the bladder. Alternatively the retaining means may be a shoulder formed by a flange (6), Fig. 3 (not shown) on the end of the tubular body. The sheath 3 may be at the extremity of the tubular body, in which case the end portion 3a may be impregnated with silicone elastomer, or it may be displaced from the end, Fig. 2 (not shown). The walls of the tubular body may be steadily reduced in thickness at the end of the duct which is attached to the stump of the ureter by conically tapering the inner and/or outer surface of the body.
Patent GB-402817-A (GB)
Title: Improvements in or relating to the application of coatings to boot or shoe parts
IPC: A43D95/26
Filed: 1932-06-09
Abstract: 402,817. Coating-machines. BRITISH UNITED SHOE MACHINERY CO., Ltd., and BROWN, J. H., Belgrave Road, Leicester. June 9, 1932, No. 16270. [Class 95.] A machine for applying colouring liquid to marginal areas of shoe soles of curved outline embodies a liquid-applying roll adapted to deposit, upon the uppermost surface of a sole, a film of colouring liquid controlled in thickness by a scraping roll, and has in addition either means to hold alternatively any one of a number of applying rolls of differing widths, so that strips of colouring of different widths may be applied, or means to guide the sole by its side surface for the application of liquid to its edge surface. Parts of such a device are shown in the drawings, the applying roll 17 receiving, from the tank 11, a layer of colouring liquid controlled in thickness by the scraping roll 12. The actual applying disc 17 is detachable and may be replaced by other discs of differing widths, and an adjustable edge guide 26 may be provided. The work-supporting roll comprises a portion 20 or 30, more or less tapered, so that flat or bevelled margins may be coloured. For colouring the edge of a sole 40, the portion 20 is removed, the shaft 24 adjusted axially, and the disc 22 used as a supporting guide for one surface of the sole, as shown in Fig. 4. When the edge is not exactly perpendicular to the sole surface, a roll, having a liquid-applying portion of rubber or like yielding material, may be used. Fig. 8 shows an applying roll 72, 62, whereby the sole edge and also a narrow margin may be coloured simultaneously.
Patent GB-710000-A (GB)
Title: Improvements in or relating to refrigerating systems
Inventor: REYNOLDS JOHN WALTER
IPC: F25B47/02
Filed: 1951-07-10
Abstract: 710,000. Refrigerating. REYNOLDS, J. W. July 10, 1952 [July 10, 1951], No. 16315/51. Class 29 In a refrigerating system for a chamber 14 the air in which is circulated by a fan 17 and comprising a compressor 10, condenser 11, expansion'valve 12 and evaporator 13 located in a rear compartment 15 of the chamber 14, defrosting periods are determined by a-timer 21 which stops the fan 17 and opens a solenoid-actuated valve 20 in conduit 19 through which hot gaseous refrigerant passes direct to' the evaporator where it condenses, the condensate being re-evaporated in an electrically heated oil-bath 22 from which the gaseous refrigerant returns to the compressor by way of an expansion chamber 24. The heater 23 of the oil-bath 22 is energized by the timer a sufficient time before the valve 20 is opened for the oil to be hot at the start of defrosting. The heater 23 comprises an oil-heater chamber from which hot oil circulates around a nest of tubes through which the refrigerant passes from bottom to top. A small pipe drains lubricating oil from the bottom of the nest of tubes into the pipe leading to the compressor suction.
Patent GB-689796-A (GB)
Title: Improvements in or relating to hydraulic stop valves
IPC: F16K31/383
Filed: 1950-06-30
Abstract: 689,796. Valves. MARSHALL, C. B., and MARSHALL, C. July 10, 1951 [June 30, 1950], No. 16363/50. Class 135. A hydraulic stop valve comprises a main valve closure member G connected by a rod H to an actuating piston J slidable in a cylinder K open at its end adjacent the valve member to inlet pressure and closed at its other end. The closed end is connected by a passage M controlled by a doubleseated auxiliary valve N so that the closed end may be connected either to inlet pressure or atmosphere to open or close the main valve. In the passage M between the valve N and the inlet pressure is disposed a filter P and a needle valve Q which latter may be closed to permit the removal of the valve N and the filter P for servicing. A spring R ensures the valve G being seated during installation and when the pipe line in which it is installed is empty.
Patent GB-1419724-A (GB)
Title: Vacuum stroke cleaning implement
IPC: B23K1/018
Filed: 1974-04-16
Abstract: 1419724 Soldering W S FORTUNE 16 April 1974 [25 May 1973] 16466/74 Heading B3R [Also in Divisions A4 A5 and F1] A hand held hand actuated vacuum stroke cleaning implement for lifting small quantities of molten matter, e.g. solder from an electrical connection, e.g. on a terminal or circuit board comprises an elongate body member 12, a cylinder 20 disposed at least partially within the body member 12, a piston 56 mounted within the cylinder 20 on a shaft 70 one end of which engages surface 36 of a cocking sheath during a cocking stroke so as to move the piston against the bias of a return spring 62 until a first latch in a trigger assembly on the body member 12 engages a second latch 80 on the shaft 70. This movement compresses a second spring 38 disposed between the sheath 28 and body member 12 which returns the sheath 28 out of engagement with shaft 70 upon external actuation of the trigger. The sheath 28 includes guide portions 30, 32 which are received during cocking within retaining channels of the body member 12. In the described embodiment there is further provided a tip and nozzle member 22, 24, the bore 83 thereof being cleaned by a forward extension 60 of the shaft 70 during the cocking stroke. The cylinder 20, which may be of transparent plastics, is releasably locked to the body member 12 by a bayonet engagement 46. The guide portions 30, 32 of the sheath 28 may include apertures 40 which receive lugs 52 on flexible tabs 44 to retain the implement in a compact arrangement for storage purposes. The exhaust air is released into an annular space 67 through an aperture 68 which space 67 serves as a baffle and reduces the possibility of abrupt flyback of the sheath 28.
Patent GB-168699-A (GB)
Title: An improved means for mounting and operating the sliding doors of cabinets
IPC: E05D15/36
Filed: 1920-06-18
Abstract: 168,699. Parnall, G. G., and Murray, A. E. June 18, 1920. Sliding doors.-In a cabinet or show-case having a door or doors 10 mounted at top and bottom on castors engaging double tracks 8, 9, the track 8 on which the inner end of the door slides is formed at its forward end with an arc 8<a> struck from the axis of the mounting in the other track or the door in its closed position so as to impart on opening an initial pivotal motion thereto. A similar arc 8<b> is formed at the other end in order to align the door parallel to the sides of the cabinet in its fully opened position. The doors are mounted on flanged rollers 9<a>, Fig. 3, which can be adjusted by screws 18. A modified mounting, Fig. 5, comprises a slotted cylindrically headed bolt 12<a> which resiliently engages the guidetrack by means of a spring 21.
Patent GB-545292-A (GB)
Title: Improvements in and relating to printing machines
IPC: B41F3/30
Filed: 1940-11-16
Abstract: 545,292. Printing-machines. EDELS, S., and REJAFIX, Ltd. Nov. 16, 1940, No. 16571. [Class 100 (ii)] A platen machine for direct or offset printing is constructed with a pivoted frame operated by a hand lever 5 or by power and fitted with a printing- plate 8 which prints on an offset surface 2 or may print direct on a surface carried by an impression pad 2. For single colour offset printing the member 2 is moved to the right after receiving an impression by means of link mechanism 14, 15, 16, 17 as the lever 5 is raised, and an offset impression is made on a tube 10 carried by a mandrel 11 mounted on a lever 12 which can be held by trip mechanism to keep the tube 10 out of contact with the member .2 as this returns to receive a fresh impression. The mandrel 11 may be replaced by an impression roller for printing on a web, or the lever 12 may be turned aside to permit a non-circular article to be rolled by hand over the offset member 2. The link mechanism 14, 15, 16, 17 may be formed with a lostmotion connection between 16 and 17 to permit the member 8 to rise from the member 2 before this member 2 moves longitudinally. In a poweroperated machine tubes 10 may be brought into printing position automatically by means of an intermittently rotated carrier 27, Fig. 6, fitted with mandrels 11 and rotated by a reciprocating hooked member 40 operated by lever-and-link mechanism and adapted to snap in turn over pins 42 on the carrier. As applied to a two-colour direct or offset machine, Fig. 4, the member 2 is moved parallel to the axis of the lever 5 and is actuated by a link 23, and cams 43, 44, 45 to take up positions beneath two printing-pads inked in different colours and then to be moved over a tube 10 to impart a multi-colour offset impression. For direct multi-colour impressions the member 2 is fitted with an impression pad and paper laid thereon is printed in two colours.
Patent GB-327903-A (GB)
Title: Wheel guards for vehicles
IPC: B62D25/18
Filed: 1929-05-30
Abstract: 327,903. Vulcan Motor & Engineering Co. (1906), Ltd., and Sutton, J. May 30, 1929. Mudguaurds. -A detachable, side shield is vertically guided into engagement with the main mudguard and is provided with means for drawing it down and clamping it to the mudguard. The side shield 5 is formed with a curved projecting rim 7 adapted to engage a resilient strip 4, which is secured in a groove 3 at the edge of the main mudguard 2 and may be formed of a strip of rubber of circular section. The shield is guided into position by pegs 8 adapted to engage sockets 10, and is then secured by hinged clips 12 adapted to engage lugs 11 and draw the rim 7 downwards on to the packing-strip 4. The shield may be corrugated or panelled at 6 to afford strength and a neat appearance.