baber/WOPTO huggingface dataset:
Patent GB-303203-A (GB)
Title: The manufacture of vat dyestuffs, and intermediate products thereof
IPC: C09B3/06
Filed: 1927-09-30
Abstract: 303,203. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Sept. 30, 1927. Benzanthrone derivatives, including dibenzanthronyls and benzanthronyl sulphides, containing one or more aryl sulphamido groups, are prepared by the action of arylsulphonchlorides on the corresponding amino compounds, or of arylsulphonamides on the corresponding halogen compounds. In examples, Bz1-benzenesulphonamidobenzanthrone and 6 : Bz-bis-(benzenesulphonamido)-benzanthrone are prepared by both methods; 2 : 2<1>-dibenzanthronyl is dibrominated in nitrobenzene and the brom derivative treated with benzenesulphonamide in the presence of an acid-binding agent and a small quantity of copper; Bz1:Bz<1>1-dibenzanthronyl is dibrominated with excess of bromine and the brom derivative similarly treated; 6:6<1>- bis (benzenesulphonamido - Bz1 : Bz<1>1-benzanthronyl sulphide is prepared from 6 : 6<1>- dibrom - Bz1 : Bz<1>1 - benzanthronylsulphide; 6- benzenesulphonamido - Bz1-brombenzanthrone is prepared from 6-amino-Bz-1-brombenzanthrone and benzene sulphon chloride, and Bz2-benzenesulphonamidobenzanthrone from Bz2-aminobenzanthrone. Dibenzanthrone and isodibenzanthrone dyes are obtained bv alkaline condensation of such of the above aryl-sulphonamido bodies as have the 2 and Bz1 positions free, or one only of them occupied by an aryl-sulphonamido group (which is split off in the course of the reaction), a merrapto, sulphide, thioether, sulphinic, or etherified hydroxyl group, or a halogen atom, or by another 2- or Bz1-benzanthronyl nucleus, having its other 2- or Bz1-position free. Other substituents, namely halogens, alkyl, alkoxy, hydroxy, thioether and amino groups, may be present in the remaining positions. In examples, a red-blue vat dye. apparently isoviolanthrone, is obtained from Bz1-benzenesulphonamidobenzanthrone, from either 6: Bz1-bis-(benzenesulphonamido)-benzanthrone or 6-benzenesulphonamido-Bz1-brombenzanthrone, an alkali soluble dye having very poor affinity for cotton and giving a blue violet vat is obtained; on hydrolysis with sulphuric acid at 120‹ C., this gives a grey to black vat dye; Bz2-benzenesulphonamidobenzanthrone, alkali fused and the benzenesulphonamido dye hydrolysed, gives a greenish grey dye; the above described bis (benzenesulphonamido)- 2 : 2<1>- and-Bz1; Bz<1>1-dibenzanthronyls give alkali soluble benzenesulphonamido dyes, giving respectively a red violet vat with poor affinity for cotton, and a blue vat with red fluorescence, dyeing olive grey; by hydrolysis, with sulphuric acid at 120‹ C., the amino derivatives are obtained, dyeing respectively grey to black and olive grey to black; 6 : 6<1>-bis (benzenesulphonamido) - Bz : Bz<1>1 - benzanthronyl sulphide by alkali fusion and hydrolysis of the sulphonamide, gives a blue-grey to black dye.
Patent GB-879030-A (GB)
Title: Improvements in trigger mechanisms for firearms
IPC: F41A17/58
Filed: 1959-07-28
Abstract: 879,030. Trigger mechanisms. OLIN MATHIESON CHEMICAL CORPORATION. July 28, 1959 [Aug. 4, 1958], No. 25902/59. Class 119. A trigger device for a firearm with a breech bolt 12 comprises firing means 33, normally cocked, on a main frame 16, an element 21 co-operating with the bolt to sense whether the latter is open or closed and indicate this by moving to an inoperative or operative position respectively on the frame, a sear 31 mounted on the element 21 operable to engage and cock the firing means 33 and a trigger 39 pivoted at 41 on the frame 16 which can only move the sear to fire when the element 21 is in its operative position. The element 21 is pivoted to the frame at 19 and is formed as a bridge at 24 to carry a pivot 29 and a stop plate 27 for the sear 31. The sear 31 engages in a bent 32 on the hammer firing means 33 to hold it in the cocked position against the force of a spring 46 (Fig. 1, not shown). Ends 42 and 43 of a spring 40 bear on the sear 31 and the trigger 39 tending to keeping them forward, the former against the stop-plate 27 and the latter ready for pressing. The spring 40 thereby tends to rotate the element 21 clockwise about its pivot 19. The spring 46 is stronger than the spring 40 and when the hammer is cocked its force on the sear tends to rotate the element 21 anti-clockwise, so that the forward toe 22 of the latter rises behind an action slide 11 on the bolt 12. If the bolt is not closed the toe 22 fouls the action slide and the hammer cannot be held cocked. If the toe 22 has risen fully behind the slide, a thumb-piece 23 protrudes as in Fig. 2, but can be pushed manually flush with the frame 16, to lower the toe 22, if the breech is required to be opened by hand, especially.
Patent GB-335693-A (GB)
Title: Filters
IPC: B01D35/00
Filed: 1929-08-26
Abstract: 335,693. Amalgamated Carburetters, Ltd., and Brown, C. Aug. 26, 1929, Filters having sheet filtering-materials; filters fitted in pipes.-In a filter, for use in pipe lines conveying petrol and the like, of the type comprising a body with inlet and outlet connections, a dirt trap bowl to which the liquid is admitted and a filter element enclosed in the bowl with its interior connected to the outlet passage, the body is divided transversely into two relatively movable parts, operation of which ca.uses blanking-off of passages constituting the inlet to the filter. In the form shown the lower portion 2 of the body has passages 26, 27 which in the normal position register respectively with an inlet passage 22 and an outlet passage 23 in a bracket. 17 which constitutes the upper portion of the body. A filter element 8 of wire gauzes stiffened by a spring 11, is fixed by means of a nut 10 in a, central recess of the part 2. The bowl 7, which may be of glass, is held in position by means of stirrup 12 hinged to the part 2. The upper face of the part 2 is held against a lower horizontal face of the bracket 17 by means of a central stud 19, a cork washer being preferably provided between the faces. Rotation of the part 2, limited by stops on the bracket against which the stirrup engages, shuts off the flow of the liquid, so that the bowl may be removed for the cleansing &c. of the filter element.
Patent GB-1188511-A (GB)
Title: Improvements in or relating to Television Receivers
Inventor: JONES JAMES DOUGLAS
IPC: H04N5/44
Filed: 1966-06-10
Abstract: 1,188,511. Saw tooth circuits. PYE Ltd. 22 Aug., 1967 [10 June, 1966], No. 25920/66. Heading H3P. [Also in Division H2] In a television receiver having a high voltage power supply (e.g. one using both valves and transistors), power supply for the transistors is provided by rectifying the longer duration half cycles of the line flyback waveform. As shown, the flyback pulses are preferably derived from a tapping on a winding F which also provides flyback pulses to the flywheel sync system. The line amplitude and rectified D.C. voltages are stabilized by feedback of a voltage controlled by a voltage dependent resistor VDR. This arrangement also enables the valve V1 to be operated above the knee of the characteristic so as to avoid Barkhausen oscillations.
Patent GB-1283323-A (GB)
Title: Device for measuring linear movements
Inventor: MICHAUD JEAN-FRANCOIS
IPC: G01B7/02
Filed: 1971-04-19
Abstract: 1283323 Measuring distances electrically COMMISSARIAT A L'ENERGIE ATOMIQUE 19 April 1971 [10 April 1970] 25985/71 Heading G1N A capacitative displacement sensor comprises a rule 10 carrying inter-connected parallel conductors 16, 16' on opposite parallel surfaces and a slider 14, 14' carrying similar conductors 20, 20' opposite the conductors 16, 16', so forming two capacitors 16 20 and 16' 20' which are connected in series and whose capacitance value C1 varies with relative movement. Further conductors Q2, 22' may be provided on the slider offset by half a pitch to provide a second capacitor C2. The conductors may be formed by vacuum coating or photo-gravule on optically polished silica surfaces. The capacitance may be measured by incorporation in an oscillator and determining the frequency, or by measuring the voltage across it in a known circuit, Fig. 4 (not shown). A count of voltage maximas gives the total displacement, and the provision of the two capacitors C1 and C2 resolves any ambiguity.
Patent GB-1222134-A (GB)
Title: Improvements relating to polyolefin films
Inventor: DOTSON BILLY RAY
IPC: C08J7/052
Filed: 1968-05-30
Abstract: 1,222,134. Coated polyolefin film. EASTMAN KODAK CO. 30 May, 1968 [5 June, 1967], No. 26000/68. Heading B2E. A polyolefin film has on at least one surface thereof a relatively thin coating comprising at least 80% by weight of a blend of ethylene/ vinyl acetate and ethylene/ethyl acrylate copolymers in a weight ratio, respectively, of from 0.3:1.0 to 1.0:0.7, the copolymers having melt indices of at least 5, the ethylene portions of the copolymers being the major components thereof and the amount of minor component in each copolymer being between 5 and 45% by weight. The melt indices are determined according to ASTM D-1238/62. and may be from 10 to 55. The amount of the blend of copolymers on the polyolefin surface may be from 0.2 to 15 grams per square metre of surface. The thickness of the coating may not exceed 3 mils. The coated film is heat-sealable or solvent sealable and may be used for packaging. The coated film may be prepared by applying a blend of copolymers to at least one surface of the polyolefin film and is bonded thereto by the application of heat. The blend of copolymers may be applied in an aqueous emulsion or in a solution, the volatile component or components of the emulsion or solution removed, and the blend of copolymers fused at a temperature not more than 10C. below the softening point of the polyolefin film. The coated film may be compression rolled to reduce it in thickness before or after removal of the volatile component(s). The film may be prepared from a poly-alpha olefin having from 2 to 10 carbon atoms such as polyethylene, e.g. low, medium or high density polyethylene, polypropylene, poly-1-butene. The copolymer blend may be applied by spraying, by dipping, by brushing, by roll coating techniques, or by using a wire-wound rod.
Patent GB-242073-A (GB)
Title: An improved landing strut for aeroplane under-carriages
IPC: B64C25/60
Filed: 1924-11-01
Abstract: 242,073. Beardmore & Co., Ltd., W., and Shakleton, W. S. Nov. 1, 1924. Buffers; vibrationdampers. - Relates to spring struts for aeroplane under-carriages in which telescopic elements and a brake to retard relative movement of the elements are provided. The strut consists of two telescopic tubes 1, 2, helical compression springs 5 being interposed between the end of the inner tube 2 and a pistonlike member 4 which slides in the tube 2. The outer tube 1 transmits thrust to the piston member 4 through a central rod 8, cam member 9, and links 5, the cam member 9 and the ends of the links 5 being so associated as to expand brake members 6, 7 against the inner cylinder 2 when the springs 3 are compressed. A buffer spring 16 is interposed between the member 9 and one end of the tube 2. A spring 15 acting on a tension rod 14 keeps the brake members always in engagement with the tube 2.
Patent GB-205820-A (GB)
IPC: D06C15/08
Filed: 1923-10-19
Abstract: 205,820. Gessner Akt.-Ges., E. Oct. 20,1922, [Convention date]. Rollers. - A hollow shaft a for the rollers of napping machines is provided with trunnions b having disc-shaped or cap-shaped extension pieces b<2> which are welded at e to the shaft. The roller is about 2,000 to 2,500 mm. long and about 70 mm. diameter. The ends of the trunnions run in ball bearings c and one trunnion carries a belt pulley d. The parts b<1>, b<2> are made thin to add less weight than the usual stub ends.
Patent GB-445089-A (GB)
Title: Improvements in percussive rock drilling machines
IPC: E21B17/04
Filed: 1935-09-21
Abstract: 445,089. Percussive drills. AKTIEBOLAGET ATLAS DIESEL, Sickla, near Stockholm. Sept. 21,1935, No. 26226. Convention date, Oct. 26, 1934. [Class 124] The space 11 surrounding the anvil block 9 is constantly subjected to the pressure of the actuating fluid through the passage 13, to maintain the anvil block in contact with the steel. A non-return valve 17 prevents the entry of washing water into the valve space 5. A passage 15 connects the space 11 to the central conduit in the steel. Specification 390,637 is referred to.
Patent GB-974612-A (GB)
Title: Preparation of hexafluoroisopropyl alcohol
IPC: C07C29/145
Filed: 1963-07-02
Abstract: Hexafluoroisopropyl alcohol is prepared by reacting hexafluoroacetone with hydrogen at a temperature of at least 200 DEG C. in the presence of a catalyst comprising metallic copper and chromium oxide. The catalyst may be used on a support, alkaline earth metal fluorides being specified for this purpose. An Example is given.ALSO:A catalyst for the hydrogenation of hexafluoroacetone to hexafluoroisopropyl alcohol (see Division C2) comprises metallic copper and chromium oxide which may be supported on an alkaline earth metal fluoride, preferably calcium fluoride.  An example describes the preparation of such a catalyst by addition of an aqueous solution of potassium fluoride and hydroxide to an aqueous solution of copper and chromium nitrates.  The precipitate is separated, dried and reduced with hydrogen to give the catalyst.
Patent GB-1218248-A (GB)
Title: A formwork for use in casting a concrete structure
IPC: E04G11/22
Filed: 1968-05-31
Abstract: 1,218,248. Forinwork. BYGGFORBATTRING AB. 31 May, 1968 [2 June, 1967], No. 26263/68. Heading E1S. A sliding or climbing formwork for structures which vary in horizontal section along a substantially vertical axis, e.g. a chimney stack, comprises inner and outer formwork panels 2 supported by an arrangement including adjustable units each formed either of two pivotally interconnected rods, e.g. 6 (Fig. 23), or two pivotally interconnected frames, e.g. 15a, 15b (Fig. 36), each pivot axis being substantially horizontal, such an arrangement allowing the panels 2 to move in or out as they are jacked up reinforcing rods 4a to cast the structure. The pivoted rod units may be outside the panels 2, as shown, and interconnected by pivoted rods 8 forming further units, and telescopic rods 9. The units may alternatively be inside the formwork panels, as in Fig. 22 (not shown). The pivoted rods 6 are connected to uprights 5a, 5b and 6. The upright 5a, 5b is telescopic and can be adjusted in height by a screw 10. In the embodiment of Fig. 36, the yokes 1f, to which the frames 15a, 15b are connected, are movable up or down by screws 10.
Patent GB-1092212-A (GB)
Title: Fuel cell batteries
IPC: H01M8/14
Filed: 1965-01-08
Abstract: 1,092,212. Fuel cell batteries having fuel supply and exhaust plena serving as terminals. TEXAS INSTRUMENTS Inc. Jan. 8, 1965 [Jan. 8, 1964], No. 26327/67. Divided out of 1,092,211. Heading H1B. A fuel cell battery comprises two spaced sequences of fuel cells, each fuel cell comprising spaced porous first and second electrodes and an electrolyte between them, the two sequences of cells defining a fuel passage (109) between them and being connected in parallel between an electrically conductive fuel supply plenum (13) and an electrically conductive spent fuel exhaust plenum (15), the first electrode of one fuel cell in each sequence being electrically connected to one of the plenums and the second electrode of another fuel cell in each sequence being electrically connected to the other plenum, the second electrode of the said one cell being insulated from the said one plenum and connected to the first electrode of an adjacent cell, and the first electrode of the said other fuel cell being insulated from said other plenum and connected to the second electrode of an adjacent cell, whereby the plenums serve as opposite polarity terminals for the fuel cell battery. Preferably either all the first electrodes or all the second electrodes in the two sequences of cell face on to the fuel passage (33, 33<SP>1</SP>, 39, 39<SP>1</SP>) the cells being arranged edge-to-edge parallel to said passage (see Fig. 3, to which the above reference numerals relate, and which displays two sequences of two cells-25, 27, 29 and 31). This Specification has been divided out of Specification 1,092,211 along with Specification 1,092,213 and describes cells and batteries also described in these Specifications.
Patent GB-403198-A (GB)
Title: Improvements in trestles
IPC: E04G1/34
Filed: 1932-09-22
Abstract: 403,198. Trestles. CAYLESS, C. W., 93, Battersea Park Road, London. Sept. 22, 1932, No. 26342. [Class 52 (v).] A trestle comprises supporting frames 1 and strut frames 5 hinged together at 7, each frame being provided with a pair of cross bars 4 between which the scaffold board is clamped. The scaffold board is passed between the two bars 4 of each pair whilst the frames are folded to lie closely together, and the frames are then opened about the hinge 7 to the position shown, in which the board is gripped. The cross bars comprise bolts 3 threaded through tubular distance pieces. A series of pairs of cross bars are provided on both the supporting frame and the strut frame so that the board can be arranged at different heights. The supporting frames 1 may be inclined away from each other as shown or towards each other, and have reinforcing stays 8 and wooden feet 9. A series of holes may be provided in each frame for selective engagement by the cross bars. The cross bars of each pair may be spaced apart a distance sufficient to receive the board at right angles to the position shown, the crossbars engaging the narrow edges of the board ; with this arrangement a continuous barrier may be formed by a number of boards, the ends of adjacent boards being clamped in one trestle. The cross bars on the supporting frame may be of a different diameter to those of the strut frame, or the effective lengths of the frames may be different so that one frame shall grip the board more firmly than the other.
Patent GB-422460-A (GB)
Title: Improvements in and relating to passenger vehicles
IPC: B60N2/75
Filed: 1934-09-13
Abstract: 422,460. Vehicle bodies. DAIMLERBENZ AKT.-GES., Untert³rkheim, Stuttgart, Germany. Sept. 13, 1934, No. 26352. Convention date, Sept. 13, 1933. [Class 108 (i)] In closed bodies of passenger vehicles the inner wall is bulged outwardly to provide space for the arms of the passengers. In the form shown the inner wall a<2> is terminated just above the rear seats b and an arm rest d is provided in the recess so formed. The upper part of the recess is bounded by the sill e for the window f.
Patent GB-639872-A (GB)
Title: Improvements in and relating to refrigerator cabinets
IPC: F25D23/08
Filed: 1947-09-30
Abstract: 639,872. Refrigerators. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 30, 1947, No. 26392. Convention date, Oct. 3, 1946. [Class 29] In a refrigerator cabinet wherein an outer shell 2 and an inner liner 3 are held in spaced relationship by rigid spacers 9, parts of the spacers 9 act as stops tc prevent displacement of a breaker strip 8 resiliently mounted. The members 2, 3 are secured to the spacer by bolt 10 which also supports members 12, 13 having flanges 14, 15 respectively under which the strip 8 is held, the head 18 of the bolt 10 acting as a stop to wedge the strip 8 against the flange 15. In a modification, Fig. 4 (not shown), the members 2, 3 are secured to the spacer by screws, the breaker strip being supported between a flange of the wall 2 and a resilient member at one end and between a member secured to the wall 3 and the head of one of the screws at the other end. The Specification as open to inspection under Sect. 91 describes a further modification in which the spacers are formed as strips of rectangular cross-section having notches which interlock with the inner and outer walls and having rounded ends one of which acts as a stop for the breaker strip. The subject-matter does not appear in the Specification as accepted.
Patent GB-631065-A (GB)
Title: Improvements in and relating to switches for controlling the lighting and hooter circuits of motor cycles and other vehicles
IPC: B62J6/00
Filed: 1947-09-30
Abstract: 631,065. Mechanical switches without quick-action; press-button switches; switch handles. PORTERIE, A. Sept. 30, 1947. No. 26396. Convention date; Oct. 2, 1946. [Class 38(v)] The rotatable handlebar grip of a motorcycle or similar vehicle operates a switch to control lighting circuits and has combined with it a press-button switch to control an electric horn. The handlebar grip 4 has an insulating shoulder 5 carrying a conductor plate 7 which permanently engages a spring contact stud 15, Fig. 3; connected to the vehicle battery. In the position shown the lighting switch is "off," the spring biassed tongue 10 of the plate 7 engaging a depression 17 in the fixed part 2 of the switch. The grip may be turned so that tongue 10 engages one of the contacts 18 .. 20, to complete the desired lighting circuit. The tail lamp of the vehicle is connected to a spring contact 16 which is. engaged by the plate 7 in all the "on" positions. The total movement of the grip is determined by the engagement of a spring abutment 26 in a sector-shaped recess 21 in the shoulder 5, and the individual switch positions are determined by the engagement of this abutment in depressions 22 .. 25 in the recess 21. The plunger 13 of the press-button switch is connected via a terminal 14 to the horn and when depressed engages the flanged edge 12 of the plate 7 to complete the horn circuit.
Patent GB-1063620-A (GB)
Title: Self-regulating corrosion-prevention apparatus for steel components situated in an electrolyte
Inventor: NOWAK WILHELM
IPC: C23F13/04
Filed: 1964-06-26
Abstract: 1,063,620. Automatic corrosion protection. VOLKSWERFT STRALSUND VEB. June 26, 1964, No.26553/64. Heading G3R. In a steel corrosion protection installation, e.g. for a ship, a detector electrode automatically controls a number of power transistors connected in parallel so that their collector currents are additive to supply a protective electrode. In Fig. 1, the current to anodes 29, 37 located at different points near the hull 1 of a ship is automatically controlled to maintain the potential of a half cell electrode 2, situated midway between anodes 29, 37, at a value determined by an adjustable reference voltage from a potentiometer 4, despite variations in the area immersed. Deviations from this value are effective through a transistor amplifier 5 to control power transistors 19, 20, 21 which are coupled so that their collector currents are additive to determine the current from a D.C. source 30 to anode 29. Amplifier 5 also controls a similar set of power transistors 36 which determine the current to anode 37 in a similar manner. Rectifiers 33-35 isolate amplifier 5 from source 30. An electrode 40 situated midway between the two systems is connected to a voltmeter 41 to indicate hull potential.
Patent GB-339266-A (GB)
Title: Process for the manufacture of acid anthraquinone dyestuffs
IPC: C09B1/34
Filed: 1929-09-03
Abstract: 339,266. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Sept. 3, 1929. Anthraquinone dyes are made by causing 1- amino-4-bromoanthraquinone-2-sulphonic acid to react with an aromatic amine containing a hydroxy group, which is etherified by a polyvalent alcohol. The reaction is promoted by the presence of copper or a copper salt. In examples, the sulphonic acid is heated in the presence of aqueous sodium carbonate and a small amount of copper sulphate with (1) o- or p-aminophenolglycolether, (2) p-aminophenolglycerolether. The products dye wool in even clear blue and greenish blue shades. Specification 10378/14 is referred to.