baber/WOPTO huggingface dataset:
Patent GB-878480-A (GB)
Title: A compacted foraminous body suitable for use as a sound attenuating device
IPC: F01N1/08
Filed: 1958-12-02
Abstract: 878,480. Silencing gaseous currents. ROCKWELL-STANDARD CORPORATION. Dec. 2, 1958 [Dec. 18, 1957], No. 38803/58. Class 7(2). [Also in Group XXII] A metallic ribbon 0À016 to 0À020 inches broad and 0À005 to 0À010 inches thick is knitted or woven into a tubular mesh, Fig. 1, which is flattened and coiled into a spiral, starting and finishing at an open end of the mesh, the spiral K, Fig. 6, being then axially compressed between dies 11, 16 to form a cone P, Fig. 5, having wire screen retaining facings 5, 7 which are added at an intermediate stage K<SP>1</SP> of the compression. As shown the cone P is applied to silence the intake or exhaust of a pneumatic motor or tool connected at 29. In the finished cone, the ribbon surfaces lie mainly perpendicular to the cone axis. The ribbon may be of steel, copper, brass or aluminium. The mesh is crimped, e.g. at 45 degrees, before or after flattening, the crimps being parallel and nested or non-nested, or non- parallel. Instead of the facings 5 and 7 the cone may have respectively a mesh of ridges and a mesh of grooves impressed on it by appropriate patterning of the dies so that it retains its shape.
Patent GB-359806-A (GB)
Title: Improvements in saws with removable teeth
IPC: B23D61/06
Filed: 1930-12-29
Abstract: 359,806. Saw teeth. PROBST, F., 9/1, Dankhelstrasse, Munich, Germany. Dec. 29, 1930, No. 39073. [Class 145 (ii).] The recess b for holding a detachable tooth f is nearly closed by an adjacent tongue k, the tail f of the tooth being inserted through the narrow gap c. To remove the tooth the tip g is bent inwards until the lug i can be freed from the notch h.
Patent GB-1533137-A (GB)
Title: Controlling the rate of gas flow through a conduit
IPC: F24F11/04
Filed: 1976-09-22
Abstract: 1533137 Fluid-pressure servomotor systems TROX GmbH Gebr 22 Sept 1976 [26 Sept 1975] 39249/76 Heading G3P The gas flow in a conduit 1 of an air-conditioning installation is regulated by a damper 10 in response to changes in the pressure drop across an orifice 2 and temperature changes in a space 13, the latter being sensed by a thermostat 14 to vary the bias 11 on a diaphragm 4 to which the pressure drop is applied. The thermostat 14 controls the pressure in a jack 15. (For Figure see next page)
Patent GB-1481390-A (GB)
Title: Apparatus for loosening up the straw mat in combineharvesters
IPC: A01F12/30
Filed: 1975-09-26
Abstract: 1481390 Loosening straw mat in harvesters CLAAS MASCHINENFABRIK GmbH Gebr 26 Sept 1975 [28 Sept 1974] 39633-75 Heading A1F Straw walkers 2 have tines 6 located between their side walls 3 and projecting through slots 8 in their upper surfaces; the tines being mounted on a common transverse shaft 5 which is rotatably driven in operation. In an alternative embodiment, (Figs. 3, 4) the tines 6' are mounted on the cranks of transverse crankshafts 10 mounted in the side walls 3' of the walkers, and bars 11 are rotatably fixed at one end to the cranks and at their other end to a common transverse shaft 12. The crankshafts 10 are thus driven by the normal oscillatory motion of the straw walkers.
Patent GB-1125290-A (GB)
Title: Complete recovery vessel construction
Inventor: MORGAN CHARLES TRAFTON
IPC: G01N15/12
Filed: 1965-09-08
Abstract: 1,125,290. Counting particles. COULTER ELECTRONICS Ltd. Sept. 8, 1965, No.39759/67. Divided out of 1, 125, 289. Heading G1N. The disclosure is identical to that of Specification 1, 125, 289 but the claim differs.
Patent GB-933702-A (GB)
Title: Process for the production of n-methanesulfonic acid derivatives of kanamycin
IPC: C07H15/22
Filed: 1959-11-24
Abstract: A process for the production of N-substituted derivatives of kanamycin and neomycin in which N-methane sulphonic acid groups and/or the sodium potassium or calcium salts thereof are introduced into the amino groups of the free base of the antibiotic or a salt thereof with an inorganic acid containing at least one free amino group, comprises (I) reacting the antibiotic with sodium potassium or calcium-hydroxymethane sulphonate or (II) formaldehyde and sodium potassium or calcium bisulphate and/or (III) sulphur dioxide and paraformaldehyde (or formalin). The antibiotic may be used in the form of the free antibiotic its sulphate or its salt with a weak acid such as carbonic acid. Specified derivatives of the antibiotics prepared are tetra-sodium kanamycin-tetra-N-methane sulphonate, disodium kanamycin-di-N-methane sulphonate, disodium kanamycin-di-N-methane sulphonate sulphate, kanamycin-di-N-methanesulphonic acid, kanamycin-mono-N-methane-sulphonic acid, trisodium salt of kanamycin-tetra-N-methanesulphonic acid, sodium kanamycin-mono-N-methane-sulphonate and sodium neomycin-mono-N-methanesulphonate.
Patent GB-1443672-A (GB)
Title: Electrolytic surface treatment of aluminium and aluminium alloys
IPC: C23C10/28
Filed: 1974-09-12
Abstract: 1443672 Electro-depositing copper-indium alloy CENTRE STEPHANOIS DE RECHERCHES MECANIQUES HYDROMECANIQUE ET FROTTEMENT 12 Sept 1974 [14 Sept 1973] 39888/74 Headings C7A and C7B Surfaces of aluminium (alloys) are rendered wear resistant by electro-depositing thereon a Cu-In alloy layer in an alkaline aqueous solution containing Cu<SP>+</SP> ions and In<SP>3+</SP> ions e.g. in a weight ratio of In to Cu metal of between 2 and 8, alkali metal hydroxide, alkali metal cyanide e.g. between 1À1 and 1À8 g/g Cu, alkali metal gluconate e.g. at least 0À5 g/g In, gluconic and oxalic acids e.g. between 1 and 10 mg/l, the pH preferably being maintained between 12 and 14 e.g. by the alkali metal hydroxide and the cathodic CD preferably being between 3 and 8 A/dm<SP>2</SP>; followed by diffusion heat-treatment at between 120 and 155C preferably in air for between 2 and 6 hours. Initially the Al may be degreased and pickled. Specification 1234192 is referred to.
Patent GB-1353041-A (GB)
Title: Method of producing plastics foamed articles
IPC: B29C44/04
Filed: 1971-08-26
Abstract: 1353041 Foamed composite article FURUKAWA ELECTRIC CO Ltd and NISSEI KOGYO KK 26 Aug 1971 [26 Aug 1970 29 Dec 1970] 40080/71 Heading B5A Foamed composite articles are formed by placing (a) powdered plastics having particles of size less than 10 mesh and (b) granular plastics having particles of size greater than 10 mesh containing foaming agent in a mould, the granular particles having a size at least 3 times that of the powdered material, rotating and/or vibrating the mould to separate the particles and heating and foaming the composition. The powder may be high density polyethylene, polypropylene, ABS, nylon, polycarbonate, rigid PVC or phenolic resin, may be a thermoplastic or thermosetting resin which is not completely cured and may incorporate slightly foamable material. The granules may be crosslinkable polyethylene or other thermoplastic which may be mixed with natural or synthetic rubber. Metal plate, wire, pipe, wire screen, lath board, &c. may be placed in the mould where the non-foamed or slightly foamed surface layer is to be formed.
Patent GB-988607-A (GB)
Title: Improvements in or relating to the knitting of tubular fabric
Inventor: PERKINS CHARLES WILLIN
IPC: D04B17/00
Filed: 1962-10-19
Abstract: 988,607. Knitting-machines. HOSIERY EQUIPMENT Ltd. Oct. 24, 1963 [Oct. 29, 1962; April 25, 1963],Nos. 40830/62 and 16317/63. Heading D1C. Tubular knitted fabrics are produced in succession on a circular knitting machine and are connected to one another by a joining thread which is weaker than the yarn used for forming the articles and the articles are thereafter separated from one another by a mechanical pull applied at appropriate intervals to rupture the joining thread. Clamping bars 66, 67 (Fig. 3) are brought together by a rack and pinion mechanism which is moved by the pinion 63 to bring the jaws together. The clamping bars are arranged in the arm 29 (Fig. 1) immediately above the take-up rollers 17. When the clamping bars are closed rollers 35, 36 (not shown) which are located inside the casing 27 (Fig. 1) give the previous article a wharp pull which breaks the joining thread. The rollers 35, 36 continue to rotate and pull the article into a funnel 31 where it is taken away by suction through the tube 32. A belt shipper 84 (not shown) moves the driving belt from a fast to loose pulley to disconnect the drive under the action of the operator or an automatic stop motion. A centrifugal switch 117 (Fig. 1) is provided to stop the motor if an unnecessarily large pull has to be applied to the pulling rollers 35, 36.
Patent GB-842253-A (GB)
Title: Improvements relating to rotary fluid pumps or motors of the radial sliding vane type
IPC: F04C14/04
Filed: 1958-12-18
Abstract: 842,253. Rotary pump and motors. ALEX-, ANDER INVESTMENT HOLDING CO. (SWAZILAND) Ltd. Dec. 18, 1958 [Dec. 20, 1957], No. 40850/58. Class 110 (2).  A pump or motor of the outwardly-sliding vane-type has a cylinder and liner 3, 1, which may be easily removed and reversed, end for end, to secure reversal of the direction of operation. A rotor 27 has a shaft 6 mounted in bearings 7, 16 secured in end housings 2, a clamping nut 8 being enclosed by a cap 10, as shown. Long bolts 14 hold the pump parts together. Fig. 2 shows inlet and outlet ports 22, 25 connected through holes 20, 23 with the working chamber. Replaceable end-plates 4 are located in recesses 13 in the end housings. Shims 9 are used to provide for axial shaft adjustment.
Patent GB-1112137-A (GB)
Title: Improvements in or relating to teleprinter exchange systems
IPC: H04L12/00
Filed: 1966-09-14
Abstract: 1,112,137. Telegraphy. SIEMENS A.G. 14 Sept., 1966 [15 Sept., 1965], No. 40972/66. Heading H4P. In a telegraph system single current signals from a two wire subscriber Tn are converted to double current signals by a unit US in the line circuit U connected to an exchange via trunks a1, b1; a2, b2. Tn is connected to U via a subscriber circuit TS and four wire network WNW only one wire of which, line 2, carries telegraph signals. When a subscriber Tn calls line circuit U relay K operates, connecting TS to U. Relay T operates. Windings AI and AIII of transmitting relay A operate, the combined effect being to send a stop polarity, over trunk a2, b2. The exchange replies with stop polarity, energizing B briefly so that the subscriber loop, line 2, is short circuited briefly. The subscriber now dials the called station by way of contact sk, the single current pulses on line 2 being converted to double current by relay A. When the called station is connected it returns a signal which energizes B. As a result the subscriber loop polarity is reversed and a relay UH (not shown) is energized. Relay U operates and reverses the power supply at subscriber circuit TS, this action switching in the teleprinter at Tn which can now transmit via contact sk. Message bits from the called station short circuit the subscriber loop and cause operation of the selector magnet EM.
Patent GB-1039769-A (GB)
Title: Continuous pasting of electrodes
IPC: H01M4/20
Filed: 1963-10-17
Abstract: 1,039,769. Pasting electrodes. VARTA A.G. Oct. 17, 1963 [Oct. 19, 1962], No. 41128/63. Heading H1B. In order to keep the chemical and physical properties of the paste constant, the paste is produced in a continuously operating mixture and fed continuously to a continuous pasting machine.
Patent GB-1134832-A (GB)
Title: Improvements in or relating to hemostatic clips and applicators therefor
IPC: A61B17/122
Filed: 1965-09-28
Abstract: 1,134,832. Gripping tools. E. C. WOOD, P. B. SAMUELS, and R. G. LEVAUX. 28 Sept., 1965 [28 Sept., 1964], No. 41191/65. Heading B4W. [Also in Divisions A5 and E2] An applicator for use with a haemostatic clip having interconnected parallel arm portions of triangular cross-section comprises two members 11a, 11b pivotally interconnected intermediate their ends to provide jaw portions 13 on one side of the pivot 12 and handle portions 11 on the other, each jaw portion having a V-shaped groove dimensioned to receive and hold the parallel arm portions of a clip, the V-shaped grooves terminating short of the ends of the jaw portions. A leaf spring 15 may be provided between the handle portions having one end 15a fastened at 16 and the other end slidably affixed by means of a slot to hook 17 so as to limit the relative movement of the jaw portions with respect to each other. A pin 37 secured to one of the members 11a, 11b may engage in a hole 38 in the other elongate member, both pin and hole being dimensioned so as to limit the separation of the handle portions to that separation to which the handle portions are limited by the hook-and-slot arrangement. In a modification, more than one V-groove may be provided on each jaw so that more than one clip may be held in side-by-side relationship. Reference has been directed by the Comptroller to Specification 1,079,712.
Patent GB-949809-A (GB)
Title: Improvements in telephone systems
Inventor: EMMONDS DONALD CAMPBELL
IPC: H04M3/14
Filed: 1961-11-17
Abstract: 949,809. " Howler " circuits. ERICSSON TELEPHONES Ltd. Aug. 28, 1962 [Nov. 17, 1961], No. 41209/61. Heading H4K. A graduated howler circuit comprises a howler tone generator T1, T2 delivering a constant amplitude signal to an amplifier T3, T4 whose power supply contains a variable impedance T6. When the circuit is connected via jack OJ to a selector, S comes up to the busy selector earth over the P-wire, Y and X follow the former bringing up Z. The latter enables the multivibrator T1, T2 and transistor T6, and at the same time permits C4 to charge slowly. Transistors T5, T6 thus become progressively more conducting that latter allowing an increasingly large current to be applied to T3, T4. In the circuit of the latter, C3 alternately discharges and discharges to an increasing extent, the consequent tone signal thus being applied to the selector over TF and OJ. Should a further selector be connected to another similar jack, then operation of S in the associated circuit short circuits Z which releases to discharge C4. The tone then builds up afresh. If the subscriber hangs up, removal of earth from the P-wire releases S, and Y and Z follow, but X remains up over the jack contact, to light lamp L.
Patent GB-1039091-A (GB)
Title: Improvements in metal casks and like containers, and methods of making same
IPC: B65D25/24
Filed: 1961-11-17
Abstract: 1,039,091. Metal casks. GRUNDY (TEDDINGTON) Ltd., and S. W. GRUNDY. Nov. 19, 1962 [Nov. 17, 1961], No. 41236/61. Heading B8D. A cask comprises a hollow body 10 fabricated from sheet metal and having its butting edges welded, top and bottom dish-shaped sections 16 with the butting edges welded one to each end of the body at 18, top and bottom end rings or chimes 19 in the form of extrusions rolled into rings, said rings having means 21 shaped so as to fit over the junction between the top section and body and the bottom section and body respectively and being welded to the body, and rolling rings 14 also in the form of extrusions welded around the outside of the body. A bung hole 11 is provided whose edge is drawn out at 13 and fits into a circular recess in a surrounding bush 12, which extends through an apertured plate 15 welded to the rings 14 which are of blunt V-shaped cross-section. A similar bung hole 23 is provided at the top of the cask. The dish-shaped sections 16 have rims 17 merging into the cask body, and holes 22 are provided in rings 19 for draining and for use as hand-holes. The cask is made from aluminium, aluminium alloy, or stainless steel.
Patent GB-1019688-A (GB)
Title: Thermionic cathodes
Inventor: THOMPSON BERNARD
IPC: H01J9/04
Filed: 1964-10-09
Abstract: 1,019,688. Thermionic cathodes. STANDARD TELEPHONES & CABLES Ltd. Oct. 9, 1964, No. 41281/64. Heading H1D. During manufacture of a thermionic cathode comprising a matrix in the form of a sintered coating of nickel powder impregnated with alkaline earth emissive material, activator metal, e.g. V, Cr, Mn or W, is introduced into the matrix by impregnating the matrix with a solution of a compound of the activator metal. In particular, a nickel cathode sleeve may be sprayed with a suspension of carbonyl nickel of particle size about 3 microns in a solution of nitrocellulose in ethyl carbonate, and fired in wet hydrogen at 950‹ C. for 15 mins. to form a matrix about 0À003 inch thick and having about 70% by volume of pores. The matrix is then impregnated with an aqueous solution of ammonium tungstate and dried at 100‹ C., this step being repeated 4 times to provide a tungsten content of 1 to 10% by weight of nickel in the matrix. The tungstate is reduced to tungsten by stoving in dry hydrogen at 1000‹ C. for 20 mins. Finally, an equimolar triple carbonate, suspended in methylated spirits, is applied by brushing, and the cathode is lacquered with nitrocellulose prior to its assembly into a valve and activation.
Patent GB-1448913-A (GB)
Title: Circuit arrangements for reducing the self near-end crosstalk disturbance in video-telephone installations
IPC: H04N7/14
Filed: 1974-09-24
Abstract: 1448913 Video telephone systems SOC ITALIANA TELECOMUNICAZIONI SIEMENS SpA 24 Sept 1974 [2 Oct 1973] 41516/74 Headings H4R and H4F In a video telephone system in which telephone sets and video sets are interconnected via a switching exchange, each video set includes a transmitting section including a sync. signal generator GS, having an oscillator and two frequency dividers to obtain sync. signals for the line oscillator DO<SP>1</SP> and the frame oscillator DV<SP>1</SP> for the camera tube TP and a receiving section Vr having a sync. separator SS supplying sync. signals for the line oscillator DO and frame oscillator DV for the display tube RC; each video set has in its transmitting section Vt a locking device DA through which the frequency of the sync. pulses in the transmitting section can be locked to the frequency of the sync. pulses received from the communicating user, a switch C being provided whereby the dividers of the sync. signal generator GS may be connected selectively to the oscillator of the generator GS or to the output of the locking device DA. As described a calling signal received at a station (T1, Fig. 4, not shown) is detected and operates a relay (RL) to cause the switch C to be put in the condition where the dividers (D1 and D2, Fig. 3, not shown) are fed from the output of an oscillator (VCO) which is phase locked to the received line synchronizing pulses (Sr). When the called subscriber picks up his hand-set the relay self-holds over auxilliary hook-switch contacts (g 1 ) and communication can be established, with the scanning circuits DV<SP>1</SP> and DO<SP>1</SP> of the camera tube TP synchronized by sync. pulses locked to the sync. pulses received from the calling party, as described above. If the subscriber is the calling party switch C remains in a condition where the station's own oscillator in the synchronizing generator GS supplies the sync. pulses for the camera tube, while the received sync. pulses will be locked to the transmitter via the other station. The arrangement ensures that sync. pulse break through from the outgoing to the incoming line will result in a stationary vertical bar pattern on the display tube rather than a constantly moving pattern.
Patent GB-1013168-A (GB)
Title: Coating of metal parts in orthodontic and pedodontic fittings and appliances
IPC: A61K6/891
Filed: 1963-10-22
Abstract: Metal parts in orthodontic and pedodontic fittings are coated with a scratch-resistant flexible coating which will blend in colour with natural teeth, the material used for the coating being non-toxic and not affected by acids in the mouth.  Braces and bands used for straightening children's teeth, and crowns, e.g. of stainless steel, may be coated (e.g. by spraying, dipping or brushing) with a stoving enamel comprising epoxy resin and urea-formaldehyde resin, and heated.ALSO:Metal parts in orthodontic and pedodontic fittings are coated with a scratch-resistant flexible coating which will blend in colour with natural teeth, the material used for the coating being non-toxic and not affected by acids in the mouth.  Braces and bands used for straightening children's teeth, and crowns e.g. of stainless steel, may be coated (e.g. by spraying, dipping or brushing) with a stoving enamel comprising epoxy resin and urea-formaldehyde resin and heated.
Patent GB-1253588-A (GB)
Title: Pattern attachment for a circular knitting machine
IPC: D04B15/78
Filed: 1969-08-21
Abstract: 1,253,588. Knitting-machines. E. MAYER [trading as MAYER & CIE]. 21 Aug., 1969 [7 Sept., 1968], No. 41658/69. Heading D1C. [Also in Division H1] A pattern mechanism for a circular machine comprises a bank of pivoted selectors 34 influenced by electromagnetic devices 10. The armatures 251 pivot intermediate members 37 which in turn slide rods 40, to each of which a selector 34 is pivoted. The selectors are thereby turned anti-clockwise. A further pivoted member 42 also pivoted by the rod anticlockwise engages in front of a fixed post 43 to prevent movement of the selector as the jack butts strike it. The electromagnetic device (see also Division H1) comprises an armature (25, Fig. 1, not shown) movable in the fields of permanent magnets (15, 16 and 17, 18) separated by a variable electromagnetic field. Cones (26, 27) on the armature co-operate with conical recesses at both ends of the electromagnet core, and ensure the air gap is the same in either end position of the armature.
Patent GB-925552-A (GB)
Title: Improvements in or relating to magnetic clutches and brakes
Inventor: KNIGHT ARTHUR CROFT
IPC: F16D27/06
Filed: 1959-12-08
Abstract: 925,552. Electromagnetic disc brakes. CROFTS (ENGINEERS) Ltd. Nov. 24, 1960 [Dec. 8, 1959], No. 41677/59. Class 103 (1). [Also in Group XXIV] In an electromagnetic disc brake unit the ring 2 carrying the solenoid 3 is provided with axiallyprojecting fingers 12 engaging notches in the peripheries of one set of discs 16 and of the armature plate 19, axial separation of the latter being limited by an internal circlip 21 at the ends of the fingers 12. As shown, the fingers are integral with the ring 3 but they may be formed separately and secured to the ring, e.g. by dovetailing. Fig. 5 shows a disc separator of sheet metal doubled over into U-section, and provided with a recess 24 for engagement with a finger 12 and also fitted with spring tongues 25 bearing against the adjacent discs.
Patent GB-1577809-A (GB)
Title: Methods of manufacturing a concentric tube heat exchanger
IPC: B21D53/06
Filed: 1977-10-07
Abstract: A method is provided for manufacturing a concentric-tube heat exchanger which includes at least a pair of concentric tubes disposed one within the other to form an annular longitudinally extending flow channel in which a plurality of heat transfer promoting fins reside. The method includes the step of applying a radially directed force to one of the pair of concentric tubes in sufficient magnitude to permanently deform the tube into engagement with the plurality of heat transfer promoting fins.
Patent GB-1246356-A (GB)
Title: Lining of grills and roasting ovens
IPC: A47J37/04
Filed: 1969-08-22
Abstract: 1,246,356. Oven linings. W. SCHNEIDER, and R. SCHNEIDER, [trading as W. SCHNEIDER & CO.]. 22 Aug., 1969 [22 Aug., 1968], No. 41999/69. Heading F4W. A strip of heat-resisting, reflective foil is rolled or folded into a magazine 12, Fig. 3, extending the length of a grilling or baking oven, so that the foil can be passed over rollers 15, 16, 17, 18 to form a disposable lining for the bottom, back and top of the oven. Separate pieces of foil 19 held in place by permanent magnets 21, 22 line the ends of the oven. The oven has a lid hinged at the bottom of the back, and a serrated edge 24 at the front of the lid enables soiled foil to be easily detached when it has been pulled from the oven. The heating element 10 may be used to heat food on a grid 11 when the lid of the oven is opened, Fig. 5. In this case, the foil 13c is arranged to pass below the element 10 to act as a reflector and drip tray.