baber/WOPTO huggingface dataset:
Patent GB-1326174-A (GB)
Title: Combined linear electric motor and carriage
IPC: H02K41/035
Filed: 1972-01-31
Abstract: 1326174 Linear motors INFORMATION MAGNETICS CORP 31 Jan 1972 [4 May 1971] 4404/72 Heading H2A In a linear actuator, particularly for positioning read-write transducers 22 with respect to a data storage device and comprising an armature coil 42 movable longitudinally in a shell 36 of magnetic material, the carriage 14 for the transducers runs on rails 46 mounted at one side of the shell and is coupled to the armature coil by a support 52 extending through an elongated slot 51 in the shell. The armature coil is located in an annular air gap between a central core 37 and arcuate, radially polarized, permanent magnets 41 secured to the inside of the shell. Core 37 carries a compensating winding 43. A position transducer 27, 28 is provided for accurate location of the carriage with respect to the data storage device and the rate of movement of the carriage from one position to another is sensed by a further transducer consisting of a bar magnet 30 moving within a coil 29.
Patent GB-778490-A (GB)
Title: Improvements in or relating to material-handling machines
IPC: E02F3/42
Filed: 1956-02-13
Abstract: 778,490. Shovelling machines. EIMCO CORPORATION. Feb. 13, 1956 [Feb. 21, 1955], No.4431/56. Class 68 (1). Each supporting rail 14 for the rocker members 28 of an overthrow shovelling machine is of a cross section adapted to provide strength in the vertical direction for carrying the load and has a longitudinally extending upwardly directed face or faces 22 on which the curved rolling face or faces 26 of the respective rocker member 28 is or are supported below the top of the section. The rail may be L, T or of an inverted V shape in cross section and the upwardly directed face or faces 22 may be inclined upwardly towards the web portion of the rail. The curved portion of the rocker member 28 may be a flange 102 overlapping the upstanding portion 98 or may be recessed to receive said portion as well as having a laterally extending grooved web to receive cables 34, 36 cross connected between said rocker members and said rails.
Patent GB-212719-A (GB)
Title: Improvements in knife cleaning machines
IPC: A47L21/02
Filed: 1923-02-15
Abstract: 212,719. Lawrence, G. F., and Alexander, A. H. Feb. 15, 1923. Knives, cleaning and polishing.-In rotary-disc machines the periphery of the cleaning surfaces is made other than circular so that there shall be prominences which sweep the hilt of the knife. As shown octagonal pressed-metal plates 6, 9 have annular recesses for cleaning members 25, 26 the points of which sweep the hilt of the knife 24, the outside rim or flange 28 of the plates being cut away at the points of the polygon so as to expose almost the whole thickness of the cleaning-material and thus admit of the cleaning of deep hilts. The plates are fixed to a sleeve 12 keyed to a tubular spindle 14 rotating in bearings 15 and having a bent handle 19 fixed to it, they are pressed together by a conical spring 17 acting between the plate 9 and a shoe 18 engaging notches cut in the sleeve 12. Openings 28, 11 are provided in the outer casing and plate 9 respectively to admit polishing powder to the compartment 10 between the plates.
Patent GB-415799-A (GB)
Title: Means for altering the timing of electrical impulses more particularly for the grid control of vapour arc rectifiers
IPC: H02M7/15
Filed: 1933-03-02
Abstract: 415,799. Converting synchronous alternators. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, CALVERLEY, J. E., Crescent Road, Rowley Park, Stafford, and BALL, R. D., Phoenix Works, Bradford, Yorkshire. March 2, 1933. No. 4485/34. Divided out of 413,797. [Classes 35 and 38 (ii).] In systems for altering the timing of periodic impulses produced by a generator A, e.g. for applying such impulses to the control grids 7 of a metal vapour rectifier 2, the A.C. generator, which is driven in synchronism with the supply, has two or more angularly displaced field windings, e.g. 13, 14, that are independently excited, while means are provided for varying the current strength through them so that the position of the magnetic axis of the generator can be shifted relatively to its core. As shown, the slip rings connected to the field windings are connected to equidistant points on the regulator R while the D.C. supply lines 16 are connected to rotating contacts 20, 21. The sine-wave generated voltage is shown for one phase as converted by a choke 30 and resister 31 closed across the phase. Figs. 3 and 4 (not shown) show arrangements in which, by the use of current transformers on the supply side of the rectifier the position of the magnetic axis of the generator can be varied according to the load on the generator, rectified current from this source being supplied to one field winding and D.C. from the source 16 to the other. Specification 398,364 is referred to.
Patent GB-792390-A (GB)
Title: Improvements in or relating to the treatment of paper
IPC: D21H27/20
Filed: 1956-02-13
Abstract: 792,390. Waterproofing paper. SOC. DES USINES CHIMIQUES RHONE-POULENC. Feb. 13, 1956 [April 13, 1955], No. 4502/56. Class 140. A method of treating wallpaper to impart thereto a resistance to water and to marking comprises treating the paper with an aqueous solution of aluminium triformate and then with an aqueous emulsion containing an ionic emulsifying agent and an organo-silicic oil or resin of the true polysiloxane or polysiloxane-polysilane type with either alkyl or aryl groups or both in which the ratio of organic groups to silicon atoms is from 1 to 2.5. Specified alkyl groups are methyl and ethyl. Specified aryl groups are phenyl, naphthyl, methylphenyl and ethylphenyl. The paper may be dried after treatment with the aluminium triformate and before treatment with the aqueous emulsion. The organopolysiloxanes may be oils, resins or gums employed separately or in association. The term includes both the organopolysiloxanes proper and the organosilicic compounds containing at the same time -Si-O-Sibonds and -Si-Sibonds. Specified ionic emulsifying agents are stearates or oleates of an organic base, e.g. the oleate or stearate of morphaline or triethanolamine. Prior to forming the emulsion the polysiloxane may be diluted with an organic solvent such as petroleum spirit, white spirit, aromatic hydrocarbons or chlorinated solvents. Butanol or triethanolamine titanate may be added to the emulsion when ready for use. The solution of aluminium triformato and the polysiloxane emulsion may be applied to the decorative surface of the paper with a roller or spray gun or the paper may be impregnated by dipping in two successive treatment liquids. The aluminium triformate may be incorporated in the priming and printing baths during the manufacture of the wallpaper. Examples disclose the treatment of wallpaper with solutions of aluminium triformate and aqueous emulsions of methylpolysiloxane oil, methylpolysiloxane resin and methylsilicic resin emulsified with morpholine oleate, morpholine stearate and a mixture of oleic acid and morpholine. Specification 736,971 is referred to.
Patent GB-1374234-A (GB)
Title: Electrical attachment devices
IPC: H04R1/08
Filed: 1971-11-19
Abstract: 1374234 Condenser microphones OLYMPUS OPTICAL CO Ltd 19 Nov 1971 04517/74 Divided out of 1373215 Heading H4J [Also in Division H2]  A condenser microphone 32 (Fig. 1) having an impedance matching circuit including an active element 33 (e.g. a F.E.T.) is part of a device having a plug 66 and a power source 67 for the impedance matching circuit. -When the plug 66 is pushed into a mating socket the power source 67 is automatically connected to the impedance matching circuit for putting the microphone into operative condition. As described a microswitch 157 (see also Fig. 3) is located in the housing 68 of a plug 66. A chassis 164 of a tape recorder has a microphone jack 162. When the plug 66 is inserted into the jack 162 a switch actuating member 160 is moved to close the switch 157. A cord 169 connects the plug 66 to the microphone 32, F.E.T. and power source 67.
Patent GB-1136905-A (GB)
Title: 1:1 cobalt azo dyestuff complexes
Inventor: MACK PETER ALBERT
IPC: C09B62/012
Filed: 1965-02-02
Abstract: 1,136,905. Cobalt complex azo dyes. IMPERIAL CHEMICAL INDUSTRIES Ltd. 13 Jan., 1966 [2 Feb., 1965], No. 4530/65. Heading C4P. Metal containing azo dyes of formula in which A is a substituted or unsubstituted phenylene or naphthylene radical having the - 0- or -COO- group represented by X in ortho position to the azo group, or A represents the residue of a nitrogen-containing heterocyclic compound in which X represents a nitrogen atom which forms part of the heterocyclic ring and which is either directly attached or which is attached to a carbon atom adjacent to the carbon atom carrying the azo group, B-Y- represents the residue of a coupling component which couples in ortho or vicinal position to a metallizable group, Y is -O- or in which R is hydrogen, lower alkyl (C 1-4 ) or phenyl, Z is an acyl radical containing a reactive group capable of forming a covalent chemical bond with hydroxy or amino groups present in textile materials and which is attached to an -NH- or lower alkyl group which is itself attached to a carbon atom of an aryl ring present in A or B or which forms part of R<SP>1</SP>, R<SP>2</SP> or R<SP>3</SP>, n is 1, 2 or 3 and at least two of R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> together form a molecule of a polydentate nitrogendonor ligand, the co-ordinate bonds which link the said ligand to the cobalt atom being bonded to nitrogen atoms present in the said ligand, and when the said ligand is a bidentate nitrogendonor ligand which only contains two nitrogen atoms capable of bonding with the cobalt atom then the third of R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> represents a monodentate ligand or a further molecule of bidentate ligand, are prepared by acylating a compound of formula all symbols being as above and which contains at least one acylatable -NH 2  or -NH lower alkyl group attached to A or B or forming part of R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP>. Examples of acyl groups include acyl radicals derived from acrylic, α- chloro-acrylic, propiolic, maleic and chloroacetic acid, (3-chloro- and (3-bromo-propionic acid, heterocyclic nitrogen containing acyl radicals of quinonaline, quinazoline, phthalazine, triazine and pyrimidine. A polydentate nitrogen donor ligand is an organic compound having at least two, primary, secondary or tertiary amino groups, many compounds being specified but diethylene triamine is preferred.
Patent GB-1464313-A (GB)
Title: Contact terminal element
IPC: H01M2/30
Filed: 1975-02-03
Abstract: 1464313 Terminal; two-part coupling VARTA BATTERIE AG 3 Feb 1975 [4 Feb 1974] 4564/75 Heading H2E A contact terminal element preferably of bronze, e.g. for a galvanic cell comprises a blade 1 having a recess 3, preferably domeshaped, two parallel corrugations 6 extending between the blade 1 and a connecting strip 5 and an aperture 4 in the blade 1 between corrugations 6. The blade and connecting strip may be joined by a web (7, Fig. 2, not shown) perpendicular to both portions and both the corrugations and the recess advantageously extend from the same side of the terminal element. The blade may function optionally as push contact connection, a soldered connection (by way of aperture 4) or the plug of a plug- and-socket connection.
Patent GB-538451-A (GB)
Title: Improvements in or relating to the separation of minerals from ores
IPC: B03D1/02
Filed: 1940-03-13
Abstract: 538,451. Concentrating ores. EVERY, C. E. (Smidth & Co. Aktieselskab, F. L.). March 13, 1940, No. 4674. Addition to 516,603. [Classes 82 (i) and 82 (ii)] In the separation of minerals from pulps of ores containing salts of alkaline earth metals, e.g. cement-making materials, by froth-flotation, fine particles are first removed by centrifugal action, and a collecting agent and an oil insoluble in water are used in the flotation process. The pulp may in some cases be separated into fractions of different particle size and the fractions treated separately. The collecting agents may be fatty acids, soaps of fatty acids, dodecylamine hydrochloride, or the like, and the water insoluble oils may be kerosene, fuel oil, soya bean oil, castor oil, tars, or the like. Modifying or depressing agents may, if required, be added with or after the other reagents. Specifications 479,872 and 479,891 are referred to.
Patent GB-720747-A (GB)
Title: Improvements relating to variable load braking apparatus
IPC: B61H13/32
Filed: 1953-02-20
Abstract: 720,747. Variable load-braking apparatus. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. Feb. 20, 1953 [Feb. 26, 1952], No. 4787/53. Class 103 (1). In brake transmitting apparatus of the kind shown in Fig. 1, wherein the brake force is varied automatically in accordance with load by the change in position along a multiplying arm 2 acted upon by a pull rod 1 of a movable member 4 coupled by a pin 5 to one end of an actuated member 3 linked to the brake shoe levers, the action of the compensating spring 21 is modified to provide a more nearly linear relation between the brake force and vehicle load than that usually provided in such systems. In one arrangement, shown in Fig. 3, the extension of the spring 21 is modulated by coupling its end to a balance arm 25, the other end of which through a bell crank lever 27 is made to move in such a manner by a roller 30 running on a cam profile 31 that the spring 21 is extended or contracted by equal amounts for equal changes in vehicle load, the positions of pins 26 and 28 being indicated by dotted lines in the drawing. In another arrangement described, equal increases or decreases in load cause unequal increases or decreases in spring tension, but due to a corresponding variation in the leverage there is still approximately linear variation in the force on the brake rods.
Patent GB-118239-A (GB)
Title: An Improved Burner for Gas-fired Furnaces.
Inventor: YATES HARRY JAMES
IPC: F23D14/00
Filed: 1917-10-16
Abstract: 118,239. Yates, H. J., Brayshaw, S. N ., and Brayshaw, E. R. Oct. 16, 917. Blowpipe burners.-A furnace burner comprises a tubular casing A provided with co-axial air and gas nozzles D, B, the gas nozzle B having a small air inlet b'. The end a<1> of the casing may be open or closed by a flap which, according to the Provisional Specification, is hinged.
Patent GB-927092-A (GB)
Title: Improvements in or relating to electric sockets
IPC: H01M50/522
Filed: 1959-02-12
Abstract: 927,092. Two-part couplings. EVER READY CO. (GREAT BRITAIN) Ltd., and A. E. GIBBINS. Jan. 28, 1960 [Feb. 12, 1959], No. 4980/59. Class 38 (1). A socket for an electric dry battery comprises a locating ; nd supporting member 1 formed of thermo-plastic material by a vacuum forming technique and having a base plate 4, a cylindrical wall 2 and a base member 3 with apertures 5 and recesses 8 to receive split socket contacts 6 with tags 7. A cover plate 10 with corresponding apertures 11 is secured over the member 3 and inserted contacts by an adhesive or by a plastic welding technique.
Patent GB-783756-A (GB)
Title: Cyclically operated sewing machine
IPC: G05G21/00
Filed: 1956-02-17
Abstract: 783,756. Sewing machines. SINGER MANUFACTURING CO. Feb. 17, 1956 [March 8, 1955], No. 4984/56. Class 112 In a sewing machine wherein the drive is interrupted at the end of a cycle of operations and the machine then coasts to a stop position, the period of coasting may be varied during operation of the machine. The invention is described as applied to a button-sewing machine with a work clamp which is opened automatically at the end of the cycle, as disclosed in Specification 774,660, and also includes the provision of means whereby the automatic clamp-opening mechanism can be put out of operation when desired. To start the machine the bell-crank 99, Fig. 4, is operated manually to lift the rod 98 to actuate the pivoted stop-frame to render effective the belt-drive to the machine. A cam plate 117 secured by screws 118 to a pattern cam 25 is provided with three cam surfaces 120, 121, 122 tracked by an arm 115 of a spring-loaded rocking lever with a vertical arm 113 adapted to co-operate with shoulders 108, 109 on a sleeve 102 carried by the rod 98 to. hold the latter in the raised position. When the cam surface 120 moves to the right due to starting the machine the end of the arm 113 engages under the shoulder 109. The shoulder 109 is cut-away at 111 and the sleeve 102 is manually rotatable on the rod 98 by means of a pivoted lever 75. According to the setting of the sleeve the arm 113 is moved sufficiently towards the end of the cycle, to release shoulder 109 and engage shoulder 108 by cam surface 122 or 121 with consequent cessation of positive-drive and commencement of coasting. Release of shoulder 108 by cam surface 120 results in a positive stop of the machine. The automatic clamp opening mechanism includes a push rod 35, Fig. 2, adapted to be held by a pivoted latch 68 in the open position and to be moved thereto by a cam acting through a bell-crank 57 mounted on an axially movable shaft 58. In the running position the shaft is moved to the left in Fig. 4, by the stop-frame 46, and the bell-crank is moved out of the path of the cam. The shaft is provided with an annular groove which may be engaged by an arm of a pivoted lever 86, Fig. 2, to retain it in the running position. The lever 86 makes a pin-and-slot connection with a second pivoted lever 78 having a forked connection with the manually operable lever 75. A further arm 89 on the lever 75 is adapted to move the latch 68 to an ineffective position.
Patent GB-415122-A (GB)
Title: Improvements in couplings for rotary shafts
IPC: F16D3/70
Filed: 1933-02-18
Abstract: 415,122. Universal joints. CROFT, F., and CROFT, A., c /o Crofts (Engineers) Ltd., Thornbury, Bradford, Yorkshire. Feb. 18, 1933, No. 5043. [Class 80 (ii).] In a coupling for rotary shafts, discs c, d are keyed on the ends of the shafts, each disc carrying a number of studs f projecting into apertures in the other disc. The studs carry resilient bushes g which comprise layers 2 of textile material 1 impregnated with indiarubber, layers 3 of indiarubber of approximately the same thickness being interposed between the layers of fabric. The bushes are made by winding the impregnated textile material and indiarubber upon a mandril to form a cylinder of desired internal and external diameters, and cutting this cylinder into portions of the desired length. The shafts and discs c, d are spaced axially from each other and indiarubber washers m are mounted on the studs f between the bushes g and the face of the disc. The studs f may be arranged alternately on the discs c, d, or may all be mounted on one disc, or in any other arrangement. Specifications 7762/07, [Class 80], and 323,178, [Class 80 (ii)], are referred to.
Patent GB-525208-A (GB)
Title: Improvements in and relating to electrical sockets and contact members therefor
IPC: H01R33/76
Filed: 1939-02-16
Abstract: 525,208. Two-part couplings. CINCH MANUFACTURING CORPORATION. Feb.16, 1939, No. 5113. [Class 38 (i)] Resilient sockets 4, Fig. 3, for receiving plugs 13 on a valve or the like are each formed as a cylinder having three sides, Fig. 7, the third side being slotted at 22, 23 ; thus line contact is made by a plug 13 with the sides 16, 191 and with both edges 22, 23 of the slot in the third side. The sockets are provided with tags 17, Fig. 3, and with ears 24, 25, Figs. 3, 7, clamped between insulating plates 2, 3, Fig. 3.. Electrostatic coupling between the sockets is minimized by adjacent pairs of lugs 24, 25 being further apart than the beadings 15 on the corresponding plugs 13. The assemblage is held by lugs 8, Fig. 1, upon a dished portion of a metal sheet having flanges 7 for attachment to a panel. The plug-holder 14, Fig. 3, may be guided into the socket-holder by a large central plug 141.
Patent GB-576959-A (GB)
Title: Shaving mechanism
IPC: B26B19/12
Filed: 1944-03-20
Abstract: 576,959. Dry shavers. BELZ, A. March 20, 1944, No. 5162. Convention date, April 6, 1943. [Class 131] In a dry-shaving mechanism the oscillating upper cutter is curved in the directior of oscillation and coacts with a stationary lower cutter. The lower cutter 1 is toothed along both edges and is fixed to the cutting head 3 by screws 2. The uppei cutter 4 is a thin blade toothed along botl edges and maintainec in close contact with the curved upper surface of the lower cutter 1 and in a stretchec condition by means othe spring 7 and the spring stirrup 6 the ends 5 of which engage in slits 15. The upper cutter 4 is driven from the rotating crank pin 13 through the lever 11, fork 8 and stirrup 6. The upper cutter 4 may be released by compression of the stirrup 6.
Patent GB-1198605-A (GB)
Title: Organic Disulphides
IPC: C07D295/26
Filed: 1969-01-30
Abstract: 1,198,605. Thiocarbonyl disulphides. MONSANTO CO. 30 Jan., 1969 [30 Jan., 1968], No. 5249/69. Heading C2C. [Also in Division C3] The invention comprises compounds of formula wherein one of R 1  and R 2  is 3-azabicyclo- [3,2,2] non-3-yl and the other is a substituted amino group. In examples, these compounds are prepared by reacting (1) R 1 -S-R 2 , where R 1 =R 2 =3 - azabicyclo - [3,2,2]non - 3-yl, with CS 2 , or (2) R 1 -CS-SH, Et 3 N salt with R 2 -S-Cl where R 2  is 3-azabicyclo-[3,2,2]non- 3-yl or morpholino (R 1  being respectively morpholino or 3-azabicyclo-[3,2,2]non-3-yl).
Patent GB-1433735-A (GB)
Title: Optical attenuator
IPC: G02B26/02
Filed: 1975-02-07
Abstract: 1433735 Optical apparatus BECKMAN INSTRUMENTS Inc 7 Feb 1975 [25 Feb 1974] 5251/75 Heading G2J A variable-width slit mechanism e.g. for a spectrophotometer comprises an opaque endless strip 88 encircling first and second parallel shafts 68, 66 and in driving engagement with shaft 68. Strip 88 has a pair of apertures 105, 106 in portions which are held in sliding contact by guide rollers 92, 94, 96, 98, the overlapping area of the apertures forming the variable slit 108. Rotation of shaft 68 in one sense increases the slit width and rotation in the other sense decreases it. The tension of the strip 88 may be adjusted by virtue of the eccentric mounting of the lower shaft 66.  A slit mechanism in which a non-endless, apertured strip passes over a single shaft is disclosed as prior art Figs. 1, 2, (not shown).