baber/WOPTO huggingface dataset:
Patent GB-1369848-A (GB)
Title: Extended-scale indicators
IPC: G01D13/06
Filed: 1971-09-21
Abstract: 1369848 Position indicating devices G H LEONARD 21 Sept 1971 [28 Sept 1970] 44032/71 Heading B3B  An indicating device for indicating the position of a rotatable member such as a feed screw in a machine tool such as a milling machine comprises drive means such as a sprocket 14 couplable to the member and for moving first and second endless sign and scale carriers in the form of belts 42 and 44 for fine and coarse adjustments respectively. The belts 42, 44 overlie one another and the carrier belt 44 has a different length to that of belt 42 and hence processes relative to the belt 42 in either direction of rotation of the sprocket 14 to a predetermined extent in relation to the scales selected. The belts and sprockets are housed in an enclosure 12 securable to the machine tool part and the sprocket 14 encloses the standard dial D of the machine tool part with the original scale divisions exposed. Direction indicating means is provided in the belt displaying opening 46 which comprises a laterally shiftable transparent cover-plate 28 which has oppositely directed arrow heads 34 which are selectively exposed by displacement of the cover-plate 28 in the direction in which the sprocket and hence the belts are being moved. Each of the belts carry two scales and the belt 42 has an opaque strip 60 which overlies the two series of numbers on the belt 44 except for apertures 62 in the strip 60 which are arranged to coincide with predetermined scale figures at the end of each successive sprocket rotation and are indicated by a pointer 50 in the viewing window 46. At the start (or end) of successive sprocket rotations starting with 000 of belt 42 located opposite pointer 50 apertures 62 expose successive numbers on the belt 44. Starting with "*" which represents the common zero of the two series of numbers on belt 44 in one row in contrasting appearance and any one of these numbers in aperture 62 complements the particular number of belt 42 which is opposite the pointer 50 and which indicate together the position of the member. The scales of the device may be so chosen as to be suitable for conversion from English to metric units by using metric scales with an English pitch lead screw on the machine tool. As shown in Fig. 21, a number of the indicating devices may be coupled to the rotatable member for both English and metric indication on the machine tool. Also, identical devices may be used in tandem for maintaining separate zero positions when machining duplicate workpieces or multiple different parts from a single workpiece stock. The direction indicators 28, 34 are used in every case showing the adopted direction of rotation which avoids error due to back-lash in the machine lead screw.
Patent GB-976006-A (GB)
Title: Improvements relating to methods and machines for plasticising plastics materials
IPC: B29C48/40
Filed: 1962-11-21
Abstract: 976,006. Mixing by compression. J. J. G. DAUBENFELD. Nov. 21, 1962 [Nov. 25, 1961], No. 44044/62. Heading B1C. A plasticizing mill especially for polyvinyl chloride comprises a rotary drum and one or more rotary rolls therein parallel to but offset from the axis of the drum to provide a nip between the drum and the roll(s). As shown, the drum 1 is driven by a worm 5 and ring gear 4 and there are two rolls 2. A stripping knife 3 extends the length of the drum being pivoted on a shaft 6 ; it strips material from the drum wall and directs it into the nip between the rolls 2. The drum and/or the rolls may be plain or screw-threaded ; the threads may or may not intermesh. The rolls may rotate as shown in the same direction as the drum and as each other, or oppositely in either case, screw-threads when provided being handed accordingly. The speed of rotation of the drum and rolls may be independently infinitely variable and the gaps between the rolls, and between the rolls and the drum, may be adjustable. The drum and the rolls are both heated. The apparatus may discharge into a short screw press, Fig. la (not shown), the speed of which is co-ordinated with that of the apparatus.
Patent GB-1245932-A (GB)
Title: Open end spinning device
IPC: D01H4/10
Filed: 1968-09-18
Abstract: 1,245,932. Open-end spinning. MASCHINENFABRIK RIETER A.G. 18 Sept., 1968 [27 Sept., 1967], No. 44266/68. Heading D1D. An open end spinning rotor has vacuum generating means in the form of a duct 16 extending across the the rotor and connected by an opening 15 with the chamber in which the fibre collecting surface is situated. The distance a between the duct side walls across the centre of the rotor exceeds the maximum width of opening 15 by not more than 125%. The tangent tA, tB to a duct side wall drawn at points where radii AK, BK are tangential to the centre opening from an angle α exceeding 120‹. The upper and lower surfaces of the duct, e.g. surface 19 preferably forms an angle 45‹-90‹ with the axis of the rotor. As in Figs. 6 and 7 not shown the duct may have 2 or 3 branches. The cross section of the duct may be uniform and be of semi-circular, square, trapezoidal or circular cross-section.
Patent GB-1487761-A (GB)
Title: Ultrasonic cross-sectional imaging system and exciter-detector circuit therefor
IPC: G01N29/44
Filed: 1974-10-15
Abstract: 1487761 Ultrasonic imaging systems ADVANCED DIAGNOSTIC RESEARCH CORP 15 Oct 1974 [29 Oct 1973] 44561/74 Heading G1G A transmit-receive arrangement for use in a realtime ultrasonic imaging system comprises a plurality of transducers each in series with a respective electronic switch; the series transducer/switch combinations being connected in parallel with one another, and in series with a common inductor, across voltage supply terminals; the switches being operable sequentially; and an output terminal being coupled to the junction of the inductor with the said series combinations. In the Fig. 5 embodiment for imaging a biological specimen, N transducers 80 in a rectilinear array are active in groups of A (< N) adjacent transducers at a time. At a first time the group comprises e.g. the 1st-4th transducers; at a second time e.g. the 2nd-5th transducers; and so on to scan across the specimen. To activate a group, timing logic 82 turns on the appropriate transistor switches 83, whereupon the transducer selfcapacitances are discharged to provide an acoustic transmission pulse. The resulting echo signals are received by the activated transducer group and develop an output across common inductor 84. This output is amplified with swept gain and applied as a bright-up signal to a B-scanned oscilloscope 86. When transistors 83 turn off prior to activation of a further transducer group, the transducer capacitances re-charge via resistors 81. The electronics may be packaged with the array, since there is only one receiver amplifying channel, to provide a compact scanning head.
Patent GB-1482145-A (GB)
Title: Combustor and method of carrying out a combustion process
IPC: F23R3/14
Filed: 1974-10-15
Abstract: 1482145 Gas turbine combustion chambers UNITED AIRCRAFT CORP 15 Oct 1974 [15 Oct 1973] 44643/74 Heading F1L A gas turbine combustion chamber comprises a main chamber 22 into which are introduced hot combustion gases from a pilot chamber 20, fuel, and swirling columns of combustion air, each swirling about its own axis, the temperature of the hot gases being sufficient to ignite the mixture in the main chamber. As shown, the fuel is introduced from a secondary fuel source 29 with the hot gasses from the pilot chamber. Again, Fig. 4, (not shown), the fuel is introduced with the swirling air columns. Fuel is fed to the pilot chamber through a nozzle 26 surrounded by swirl vanes 28. The air columns are fed to the main chamber through swirl nozzles 50. The chambers may be formed as individual cans, or as a single annular chamber. Also, Fig. 5, (not shown), the swirl vanes 28 may be omitted, and fuel fed to the pilot chamber through a perforated flame plate. Further embodiments are described, in which adjacent swirl nozzles cause the air columns to swirl in opposite directions.
Patent GB-1085295-A (GB)
Title: Improvements in or relating to partitions, walls or the like
Inventor: BURROWS ARTHUR THOMAS CHARLES
IPC: E04B2/80
Filed: 1964-11-03
Abstract: 1,085,295. Partitions; partion panels. GEO. W. KING Ltd. Dec. 9, 1965 [Nov. 3, 1964], No. 44851/64. Headings E1B and E1W. A partition wall comprises, in tightly abutting edge-to-edge relationship, a plurality of panels each comprising a pair of rigid rectangular sheets 14 each stiffened on its inner surface by a frame 15, and a sheet 12 of lead or other sound deadening material clamped between the opposed frames so as to be spaced from the inner faces of the two sheets 14, the sheets 14 being relatively offset so that on assembly the joints between the panels at one face will be displaced or offset with respect to those at the other face of the wall. The panels are mounted in a fixed peripheral frame which on one side comprises a one-piece stepped jamb 23 and on the other side comprises a stepped jamb member formed in several parts 28, 30 and 31 which are individually assembled to facilitate erection of the partition. The part 31 is equipped with a latch device 32, 33, 34 which can be rotated into a position in which it exerts a force on the end panel to ensure that the joints between all the panels within the fixed peripheral frame are tight. The fixed peripheral framing members are mounted through intermediate felt strips such as 24, 29. In a modification, the opposite sheets of each panel are diagonally relatively offset relative to each other.
Patent GB-1062252-A (GB)
Title: New substituted phenols process for their preparation and pharmaceutical compositions containing them
Inventor: GAZAVE JEAN MAURICE
IPC: C07C37/14
Filed: 1962-11-28
Abstract: The invention comprises phenol substitutes in either the 2- or the 4-position by a pinan-1-yl radical and in at least one other position by a methyl radical, substituents other than pinan-1-yl and methyl being absent; the compounds are made by reacting camphene with an appropriate methyl-substituted phenol, in presence of a Friedel-Crafts catalyst, e.g. SnCl4. Exemplified products have the following structures <FORM:1062252/C2/1>ALSO:Pharmaceutical compositions for treating infections caused by pyogenic microorganisms comprise, besides a carrier, a phenol substituted in either the 2- or the 4-position by a pinan-1-yl radical and in at least one other position by a methyl radical, substituents other than pinan-1-yl and methyl being absent; the compounds may be used in the form of skin ointments, percutaneous ointments, suppositories, capsules, alcoholic solutions, suspensions for atomisation, ear drops, tablets and suspensions for intramuscular or subcutoneous injections.  The compounds may be associated with an antispasmodic a B-group vitamin or a lactic ferment.  Exemplified substituted phenols have the following structures: <FORM:1062252/A5-A6/1>
Patent GB-1130948-A (GB)
Title: Improvements in flat-blade trimming shears
IPC: B23D31/04
Filed: 1966-10-10
Abstract: 1,130,948. Shearing. SCHLOEMANN A.G. 10 Oct., 1966 [28 Oct., 1965], No. 45164/66. Addition to 1,081,496. Heading B3W. In a guillotine shear according to the parent case the movable blade moves away from the fixed blade during the return stroke to prevent the movable blade rubbing against the freshlycut edge, the motion being achieved by a lever projecting from the back of the movable blade and connected to the connecting rod of an auxiliary crank-shaft which is angularly displaced relative to the main crank-shaft, so that it leads the main crank-shaft in the direction of their rotation, this linkage being modified according to the present invention by the provision of a further crank which is in phase with the main crank-shaft and is also connected to the lever projecting from the movable blade, both the connecting rods on the auxiliary crankshaft having their crank-receiving apertures elongated in the direction of the length of the connecting rod. In the parent case the movable upper cutter follows an elliptical path, so that at the bottom of its stroke the cutter has a predominantly horizontal motion, away from the fixed cutter. The present inventiondescribes a modification of the linkage which causes the cutter to move in a straight line over the whole of the cutting stroke, and to return along a curved path as shown in Figs. 2a and 3a. The upper blade holder 13 has a lever 17 projecting rearwardly, through which a pivot pin 20 passes, and on which are mounted the lower ends of connecting rods 18 and. 19. The rod 19 is actuated by an eccentric 24 mounted on a subsidiary shaft 3, the eccentric 24 being in phase with the eccentrics on the main shaft 2. The rod 18 is actuated by an eccentric 23 also mounted on the subsidiary shaft-but displaced in the direction of rotation so as to lead the eccentric 24. The openings 21, 22 in the connecting rods 18 and 19 which receive the eccentrics 23 and 24 are both extended longitudinally to form a lostmotion connection. Operation.-On the downward cutting stroke the blade holder is controlled by the main eccentrics and the eccentric 24, at the bottom of the stroke the eccentric 23 becomes effective and tilts the blade holder so that the return stroke of the blade is along a curved path. The cutting clearance is adjusted by a motor driven wedge 27 and a fluid cylinder 33 keeps the blade holder against its guide surfaces.
Patent GB-1034728-A (GB)
Title: Improvements in and relating to tunnel furnaces
IPC: F27B9/02
Filed: 1964-11-05
Abstract: 1,034,728. Tunnel furnaces. L. CHOMAT. Nov. 5, 1964 [Nov. 16, 1963], No. 45200/64. Heading F4B. A tunnel furnace comprises a plurality of independant sections 1 to 12, each having a metal frame containing refractory brickwork, mounted on a carriage or chassis 13 provided with non-driven casters, rollers or wheels 14 whereby the section is movable in all directions, the sections being placed end to end to form a tunnel, of any desired length. Exhaust fumes from a modified section forming heating chamber 7 pass through preheating flues in sections 6 to 3 and then out through exhaust flues 15, conduits 16 and chimney 17.
Patent GB-1012837-A (GB)
Title: Improvements in or relating to digging machines
IPC: E02F3/345
Filed: 1963-11-15
Abstract: 1,012,837. Shovelling machines. T. N. W. LEIJON. Nov. 15, 1963 [Nov. 21, 1962; March 13, 1963], No. 45206/63. Heading E1F. In a side-dumping bucket assembly of a shovelling machine the bucket is pivotally mounted so as to be swingable to either side of the machine about either of two bearing devices individually actuable by an associated detent device, both detent devices acting to lock the bucket and its support together during digging.  As shown in Fig. 9 each detent device comprises two pivot pins 56 is the support 2 which are axially displaceable towards or away from each other in a shaft 50 so as to engage releasably in corresponding apertures 57 in the bucket 3. Alternatively the pins may be provided in the bucket the apertures in the support. The detent devices may comprise part of a hydraulic circuit which includes a tilting cylinder 5 whereby side dumping cannot start until the appropriate bearing device has been released, or they may be e.g. electromagnetically operable independently of the tilting mechanism.  In an alternative embodiment (Fig. 2) a hydraulically-operated detent plate 16 in each bearing device releasably holds a shaft 9 and lining 11, rigidly connected to the bucket, in a groove 12 in the support 2.
Patent GB-452337-A (GB)
Abstract: 452,337. Glass manufacture. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Patent Treuhand Ges. f³r Elektrische Gl³hlampen ; 11, Ehrenbergstrasse, Berlin) June 13, 1935, No. 17086. Drawings to Specification. [Class 56] [See also Group XL] The outer jacket of an electric discharge device adapted to emit ultra-violet radiation consists of a glass transmitting ultra-violet but substantially no visible light. In an example, a soft glass has 3¢ per cent each of nickel and cobalt oxides dispersed within it, and transmits radiation below 4000 A‹.
Patent GB-1474121-A (GB)
Title: Furnace hearth
IPC: F27D3/12
Filed: 1974-10-21
Abstract: 1474121 Furnace movable hearth UGINE CARBONE and UGINE ACIERS 21 Oct 1974 [19 July 1974] 45474/74 Heading F4B A movable hearth for transporting items of small dimension through a furnace has links 1, with female pivots 112 of inside diameter d at the front (Fig. 5) and male pivots 5 of outside diameter D<SP>1</SP> at the rear, arranged so that the front female pivots engage with two male pivots of the two links ahead and the rear male pivots engage with two female pivots of the two links behind so that the links are in staggered relationship with one another as shown in Fig. 1. On the outside edge of the hearth are edge pieces 2 and 3 with vertical and horizontal portions. The horizontal portions have similar male and female pivots to engage with the links 1, with alternate edge pieces 3 having horizontal portions 3<SP>1</SP> one half the width of the links in order to complete the row of links as shown in Fig. 1. Links and edge pieces are joined by bars 4 and one side of the links has tongues 9 (Fig. 3) that slot into cut away portions 24 (Fig. 5) on the opposite side of the next adjacent link. Similarly the horizontal portions of the edge pieces on one side of the hearth have tongues 9 and on the other side of the hearth cut away portions 24. The surface of the links and horizontal portion of the edge pieces are suitably shaped and dimensioned to overlap and present a surface sufficiently closed to support very small articles. The vertical portions of the edge pieces is made up of the parts 25, 26 and 27 and are shaped as shown in Fig. 6 in order to overlap other edge pieces and present a closed edge surface. An extension 28 is fitted to the upper area of part 25 to provide a space 34 into which the part 27 of the next edge piece ahead is engaged and guided and forms a seal when the hearth pivots round an end boss, Fig. 9 (not shown).
Patent GB-1498615-A (GB)
Title: Process for the production of polyisocyanate mixtures containing blocked isocyanate groups
IPC: C07C239/00
Filed: 1976-11-02
Abstract: 1498615 Blocked polyisocyanates; polyurethane lacquers BAYER AG 2 Nov 1976 [7 Nov 1975] 45475/76 Heading C3R A process for producing blocked polyisocyanate mixtures comprises reacting one or more polyols of average M.W. 62 to 300 with 3 - isocyanatomethyl - 3,5,5 - trimethyl cyclohexyl isocyanate providing 2 to 12 NCO per OH group to provide a reaction mixture containing methane and free NCO groups which are then blocked with an agent containing at least one reactive methylene group. Preferably blocking is effective by adding the mixture to the blocking agent in a separate vessel and with sodium phenolate as catalyst. The blocking agent may be ethyl acetoacetate, acetyl acetone or malenic acid dimethyl, or preferably diethyl, ester. Various suitable polyols are mentioned, trimethylol propane being preferred. The mixtures are useful in polyurethane stoving lacquers in conjunction with polyols of MW. 400 to 50,000, numerous such polyolsof divers types being mentioned, and conventional solvent and additives, e.g. hardening catalysts, pigments, dyes and levelling aid. Specific examples of such lacquers are based on a polyester polyol or mixture of a polyhydroxypolyacrylate and a polyester polyol. Reference is made to Specification 1,465,286.
Patent GB-1157467-A (GB)
Title: A Current Supply System.
IPC: H02M5/14
Filed: 1966-10-12
Abstract: 1,157,467. Phase changing circuits. LICENTIA PATENT-VERWALTUNGS G.m.b.H. 12 Oct., 1966 [20 Oct., 1965], No. 45555/66. Heading H2F. A phase changing system comprises two networks having a different number of phases connected to the A.C. side of a converter Be and a capacitor connected to the D.C. side of the capacitor. The connections between the networks and the converter may include chokes and filters L 1 , S 1 , L 2 , S 2  for suppressing harmonics. A suitable converter for use in the system, Fig. 1 (not shown) comprises a three-phase bridge with a storage capacitor across the D.C. side and reverse diodes across the controlled rectifiers. The converter may supply active as well as reactive power.
Patent GB-1315099-A (GB)
Title: Preparation of 3,4-disubstituted phenyl-l-alanines
IPC: C12P13/04
Filed: 1971-09-30
Abstract: 1315099 Substituted phenyl - L - alanines NISSHIN FLOUR MILLING CO Ltd 30 Sept 1971 [30 Sept 1970 1 June 1971 19 Aug 1971] 45646/71 Heading C2C L-compounds of formula in which R<SP>1</SP> and R<SP>2</SP> are the same or are different and each is a hydrogen atom or a methyl group provided that when R<SP>1</SP> is hydrogen R<SP>2</SP> is not a methyl group are prepared by reacting 3,4- disubstituted phenyl pyruvic acid of the general formula with an amino radical donor such as L-glutamic acid, L-aspartic acid, L-alanine, glycine, peptone and protein hydrolysates and mixtures thereof in the presence of a transaminase derived from a bacterium of the genus Alcaligenes, Mycobacterium, Nocardia, Staphylococcus, Arthrobacter, Gluconobacter or Achromobacter; a mould of the genus Helicostylum or Trametes or a yeast of the genus Rhodotorula.
Patent GB-1451839-A (GB)
Title: Multitube coaxial closed cycle gas laser system
IPC: H01S3/03
Filed: 1974-10-23
Abstract: 1451839 Lasers UNITED AIRCRAFT CORP 23 Oct 1974 [26 Dec 1973] 45777/74 Heading H1C In a closed cycle laser system in which the active medium is flowing gas pumped by an electric discharge and the resonator is formed between two curved reflectors 102, 106, the closed cycle is provided with heat exchangers 92, 100 and a circulator 96 while the entire laser system is mounted on a framework, Figs. 1-4 (not shown), which includes anti-vibration means for minimizing distortion of the laser optical path caused by vibrations and pressure differentials within the system Typically the active medium is a mixture of Co 2 , He and N 2 . The optical path is a folded one Fig. 6 - and includes an oscillator path, between resonators 102, 106 and an amplifier path, subsequent to final reflector 110. Each of the four "legs" of the paths is pumped by two electric discharge tubes. Radiation is coupled out of the oscillator section by a mirror 108 containing a central aperture.