baber/WOPTO huggingface dataset:
Patent GB-681499-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B69/04
Filed: 1950-09-09
Abstract: 681,499. Sewing-machines. JONES SEWING MACHINE CO., Ltd., JEFFERSON, S., and GRIFFITHS, F. July 16, 1951 [Sept. 9, 1950], No. 22254/50. Class 112. Hand-gearing. A machine with a belt pulley 1 and driving handle 26 has gear-wheels 9, 25 on a sleeve 5 on the top shaft 6 and on a sliding shaft 14 respectively, the latter shaft being adapted to be driven by the handle and to engage and disengage the gears by its sliding. In the form shown, the sliding shaft 14 has an enlarged outer end 27 into which the handle 26 can be screwed, a catch 29 being arranged to engage the end face of the part 27 of a groove 32 therein to hold the shaft in the required position. The sleeve 5 is free on the shaft 6 and is locked thereto by a spring catch 10 when required.
Patent GB-336318-A (GB)
Title: Improvements in the manufacture and production of porous masses
IPC: C04B12/04
Filed: 1929-07-19
Abstract: 336,318. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). July 19, 1929. Moulds; processes. - Silicate material which swells on heating is placed in an iron mould having an upper cover comprising a movable iron plate resting on the mass and capable of rising to the top edge of the mould but not higher. The mould is slowly heated, whereupon the material swells and raises the cover till it reaches its uppermost position. The pressure then exerted, on continued heating, causes a denser structure of the outer layers of the mass.
Patent GB-1217114-A (GB)
Title: Reel mounting device
IPC: G11B15/66
Filed: 1969-05-01
Abstract: 1,217,114. Securing reels on hubs. SANGAMO ELECTRIC CO. OF SPRINGFIELD. 1 May, 1969 [28 Aug., 1968], No. 22366/69. Heading F2U. A tape reel 12 is secured on a hub 10 by radial toggle arms 58, 60 carrying end abutments 70 which are engaged by the reel during its axial insertion on the hub, to move the arms through their over centre position to project friction pads 80 at their ends through slots 52 in the periphery of the hub into engagement with the inner surface of the reel. The arms 58 60 are mounted on an axial pivot 56 and loaded by a helical tension spring 74. The hub 10 and inner portion of reel 12 is circular as shown, but may be polygonal.
Patent GB-389474-A (GB)
Title: Improvements in optical systems for the projection of transparencies in colour and to give a stereoscopic effect
IPC: G03B35/00
Filed: 1931-08-08
Abstract: 389,474. Optical-projection apparatus. WYLD, F. LEHNHOFF-, 8, Avenue Eugenie, St-Cloud, Seine-et-Oise, France. Aug. 8, 1931, No. 22511. Convention date, Jan. 31. Addition to 367,867. [Class 97 (i).] The parent Specification describes a projection apparatus in which, with the object of producing colour and stereoscopic effects in the projected images, a polarizing device, such as a Nicol prism, is inserted between the source of light and the transparency to be projected, and another Nicol prism &c. is inserted between the transparency and the screen. According to one feature of the present invention a magnetic field is set up around one or both of the polarizing devices by surrounding these devices by windings through which current is passed. According to another feature of the invention one or each of the Nicol prisms is replaced by a system comprising two prisms of rightangle isosceles triangular cross section arranged with their hypotenuse faces parallel and constituting internally-reflecting faces. Means are provided for varying the orientation of one of the prisms with respect to the other, or for varying the orientation of the system as a whole with respect to the direction of the incident light.
Patent GB-759570-A (GB)
Title: Improvements in or relating to the colouration of fibrous materials
Filed: 1954-08-03
Abstract: Fibrous material are dyed or printed with a composition comprising a colouring agent and an ester consisting of an aminoalkyl titanate or zirconate.  Titanate or zirconate esters of amino alcohols having the formula <FORM:0759570/IV(c)/1> in which R is an ethylene or alkyl-substituted ethylene group, and R1 and R11 are hydrogen, an alkyl radical of 2-20 carbon atoms, a b -aminoalkyl or a b -hydroxyalkyl radical may be employed, and specified examples are triethanolamine titanate, diisopropanolamine titanate, and b -aminoethylethanolamine titanate.  The ester may be applied just after or just before the colouring agent, if desired.  The process is applicable to fibrous materials of cellulose, regenerated cellulose, cellulose derivatives, alginates, polyamides, polyesters or polyacrylontrile and also to silk, wool, paper and wood flour. Specified colouring agents are direct azo, vat, acid, basic and sulphur dyestuffs.  Examples describe the printing of cotton with a paste containing the ester and a naphthol base followed by development with a diazo salt, the printing of cotton with a paste containing the ester, a vat dyestuff, sodium formaldehyde sulphoxylate, thioglycol, sodium carbonate and an alginate thickener, the printing of silk with a paste containing the ester, an acid dyestuff, thioglycol, urea, ammonium thiocyanate and potassium chlorate followed by acid-steaming, and the printing of acetate rayon, cotton, delustred nylon, degummed silk, viscose rayon, wool and polyacrylonitrile fibres with a paste containing the ester and a direct dyestuff.
Patent GB-715606-A (GB)
Title: Engine starter mechanism
IPC: F02N7/02
Filed: 1951-03-16
Abstract: 715,606. Turning-gear. MAY, C. H. March 16, 1951 [March 21, 1950], No. 22597/53. Divided out of 6377/51. Class 7(5) In an engine starting mechanism comprising two oppositely disposed fluidpressure operated racks 113, 121, Fig. 1, with helical teeth 114, 123, respectively, a pinion 130, Fig. 3, freely mounted on a shaft 136 between the racks and adapted to engage with either rack, the shaft 136 being directly or indirectly connected to the engine (not shown), and the pinion 130 having a set of axially extending ratchet teeth 131 or 132 on each side face, there is provided means, such as a spring-loaded ball 140, for limiting the free axial movement of the pinion, whilst two ratchet wheels 133, 138, each fixed on the shaft on either side of the pinion, have teeth which co-operate with the ratchet teeth 131, 132. Upon admitting a fluid, such as air, into the upper cylinder the piston 112, Fig. 1, is moved leftwardly against a spring 115 so that the rack teeth 114 engage the pinion 130, Fig. 3, and rotate it in a counter-clockwise direction to both slide the pinion to the left into engagement with the ratchet wheel 138, and to crank the engine in a counterclockwise direction. When the engine starts, the pinion 130 is thrown out of clutching engagement with the ratchet wheel 138 and is prevented from travelling beyond the positions shown in Fig. 3, by the ball 140. To start the engine in the reverse direction air is admitted to the lower cylinder thereby moving the pinion 130 to the right to engage the other ratchet wheel 133. Means, such as a shuttle valve, not shown, may vent the cylinder and cut off the air supply thereto when the engine has started, the valve being interposed in the air pipe between each cylinder and a control valve; each shuttle valve is normally spring urged into an open position and is moved to the closed position by air from a compressor acting directly on the appropriate side thereof.
Patent GB-230377-A (GB)
Title: Improvements in dry electric batteries for radio transmission and reception
IPC: H01M50/502
Filed: 1924-09-27
Abstract: 230,377. Gebhardt, H., and Electrochemie Akt.-Ges. Sept. 27, 1924. Cases; connections; connections to carbons.- In a battery particularly for wireless telephony &c. and of the kind in which individually removable cells make connection with concentric clip contacts a, f, the former engaging the inner surface of the zinc container, and the latter gripping the carbon electrode, a strip d connecting the carbon of one cell to the zinc of the next is made integral with the clip a and is passed through a slit c<1> in an insulating plate c. The strip d ends in an eye which is connected in known way by an eyelet g with the adjacent clip f. Long sleeves i for the reception of a wander plug are provided where required, passing through the battery cover h. The clips a are held by tongues b passing through and bent over the plate c. The clips a, f of one pair of terminals may be respectively connected to the socket and central contact of a lamp-holder k fixed inside the cover h, so that this pair of clips may be used for testing individual cells.
Patent GB-626428-A (GB)
Title: Improvements in methods of making composite articles
IPC: C25D5/56
Filed: 1947-08-18
Abstract: 626,428. Electrodeposition on rubber. UNITED STATES RUBBER CO. Aug. 18, 1947, No. 22897. Convention date, Oct. 19, 1946. [Class 41] A method of bonding a layer of metal, for example iron or nickel, to a rubber-like material consists in treating a surface of the material with phosphorous trichloride, chloroacetyl chloride, or bromine, coating the treated surface to render it electrically conductive, and electrodepositing thereon a layer of metal. The material may be vulcanized before or after treatment with the chemical agent. The treated surface may be coated with graphite or finely-divided particles of iron or bronze.
Patent GB-1103037-A (GB)
Title: Magnetic tape reproducing device
IPC: G11B23/04
Filed: 1966-05-23
Abstract: 1,103,037. Magnetic reproducing device. MOTOROLA Inc. 23 May, 1966 [17 Sept., 1965; 12 Jan., 1966], No. 22916/66. Heading G5R. A tape player for multi-track stereo tape cartridges has a capstan 116 positioned to drive tape 103 past a magnetic head 70, the capstan being supported above and below the tape by bearings 111, 113, Fig. 10, to prevent flexing of the capstan. Head 70 is mounted on a cam follower 68 which engages a cam 60 having different cam surfaces associated with different tracks on the tape. Upon completing the playing of one of the tracks on the tape an aluminium strip that completes the loop of the tape bridges contacts 174, 175, Fig. 3, to energize a solenoid 30 which acts through a pawl 38 and ratchet wheel 44 to rotate camshaft 50 to position a different cam surface into contact with cam follower 68. This automatically positions head 70 to play a different track of the multi-track tape. Cam 60 has cam portions 64, 65 for positioning the sound head 70 to play four and eight track tape cartridges respectively. A bell crank 75 is connected by a pawl 79 to cam 60 and has an arm 82, Fig. 3, which is engageable, by the corners (180), Fig. 5 (not shown), of a four track cartridge (102) to slide cam 60 along cam-shaft 50 so that portion 64 of the cam contacts cam follower 68. An eight track tape cartridge 100 has angled corners (170), Fig. 6 (not shown), which do not engage arm 82 so that cam follower 68 remains in contact with portion 65 of cam 60. As shown in Fig. 11 the mounting for the head 70 includes an azimuth adjustment pivot 133 and a track index axis 130 which lie in the same plane through the centre of head 70, and a track or altitude adjustment screw 137 which is positioned on the centre line of the head in line with the azimuth pivot 133 so that alignment in one direction, by varying one of the adjustments, will not effect the alignment controlled by the remaining adjustments.
Patent GB-796789-A (GB)
Title: Improvements in piles for foundations of buildings
Inventor: NG WAH HING
IPC: E02D5/72
Filed: 1955-08-09
Abstract: 796,789. Piles. SIME, DARBY & CO., Ltd. Aug. 7, 1956 [Aug. 9, 1955], No. 22938/55. Class 68(2) A tube, which is driven by means of a hammer, into the ground to form a bore in which is pile is cast or into which a pile is inserted, is provided with a reinforced concrete shoe which remains in the ground when the tube is withdrawn, the shoe having a pointed bottom 2 and a cylindrical upper part with spigot 4 to enter the tube 6 and a substantial shoulder 8 to engage the lower end of the tube 6 and having reinforcement in the form of a cage which follows the outline of the spigot, shoulder and bottom. The reinforcement may include four principal bars 10 lying in vertical planes at intervals of 45 degrees about the vertical axis of the shoe. Each bar 10 may extend across a diameter of the shoe just below shoulder 8 and across the pointed bottom to form a closed triangle. The principal bars are tied together by a spiral 14 and ring 15. Vertical bars 16 held by diametrical ties 18 reinforce the spigot 4. In a modification each of the principal bars runs from the spigot, under the shoulder. across the pointed bottom under the shoulder and back to the spigot.
Patent GB-442526-A (GB)
Title: Improved glassware and process of making the same
IPC: C03C11/00
Filed: 1934-08-08
Abstract: 442,526. Glass manufacture. CORNING GLASS WORKS, Walnut Street, Corning, New York, U.S.A.-(Assignees of Hood, H. P. ; 83, East 4th Street, and Nordberg, M. E. ; 244, Chemung Street, both in Corning, New York, U.S.A.) Aug. 8, 1934, No. 22947. Convention date, March 19. Drawings to Specification. [Class 56] A process for making glassware consists in shaping an article from molten glass, separating the glass into two phases by heat treatment, and then dissolving out one of the phases to leave the article composed of highly siliceous glass. A suitable glass for the purpose has the composition of 75 per cent of silica, 5 per cent of sodium oxide, and 25 per cent of boron trioxide. An article made in the usual way from this glass is subjected to heat treatment by maintaining it at a temperature of 525-650‹ C., for example, for a period which may last from a few hours to several days, according to the character of the article. The glass separates more or less completely into two phases, one of which is rich in silica and is insoluble while the other is rich in boric oxide and alkali and is soluble in acids. The treated glass is immersed in an acid bath for a time which depends on the temperature of the bath and the thickness of the glass, and it is then washed in running water to remove all traces of the soluble phase. The glass is now porous and may be used, if desired, as a semi-permeable membrane. It may be subjected, however, to a temperature of 900-1000‹ C., to dehydrate and revitrify it, and to leave a glass which is transparent and non-porous and has a high silica content.
Patent GB-598723-A (GB)
Title: Gyroscopic controller
IPC: G01C21/18
Filed: 1945-09-07
Abstract: 598,723. Fluid actuation of switches. SINGER MANUFACTURING CO. Sept. 7, 1945, No. 23076. Convention date, Sept. 5, 1944. [Class 38(v)] [Also in Groups XXIX and XXXV] A gyro-controlled, two-way switch for the control of an aircraft &c., has its rotor axis vertical and is driven by air jets at 40 produced by exhausting from the outer casing 1, air admitted at 24 and passing through passages 29, 30 in the outer gimbal ring 79 and rotor housing 76 respectively, and reaching casing 1 through a port 41. Branches from the inlet system conduct the air to nozzles 32, 38 which are more or less obstructed by members 53, 61 in accordance with the altitude of the aircraft &c. on which the device is carried. These jets act via diaphragms 56, 66 on contact members 58, 67 so as normally to hold them in a central position but to cause them to make contact on one side or the other with pitching, rolling movements of the aircraft.
Patent GB-480597-A (GB)
Title: Improvements in the manufacture of cellulose artificial wool
IPC: D01F2/00
Filed: 1936-08-22
Abstract: Cellulose artificial wool having a stable curliness is manufactured by treating the crude and still wet cellulose fibre with superheated steam.  The treatment produces at the same time a diminution in the swelling of the fibres so that they may be advantageously mixed with wool.  In an example, viscose is spun as described in Specification 467,426 and while still wet is subjected to steam at 115 DEG  C. under atmospheric pressure.  In a second example, the spun viscose is subjected, before the steaming, to a treatment with a solution of the formic acid salt of triethanolamine stearic acid ester. Specification 443,971 also is referred to.
Patent GB-340523-A (GB)
Title: Improvements in and relating to motor-driven tree cutting saws
IPC: B27B17/08
Filed: 1929-07-29
Abstract: 340,523. Felling trees. HEIDE, H. C., 2, Broad Street Buildings, Liverpool Street, London.-(Ural - Maschinen - Vertriebsges. ; 13, Walfischgasse, Vienna.) July 29, 1929, No. 23244. [Class 145 (ii).] A n internal-combustion engine for driving a tree-cutting saw is cooled by two fans 2, 3, one on each side of the crank case, which draw air in through openings 5 and force it into the cylinder casing 6 whence it escapes bv the ports shown. The fans are constructed so as to draw the air over the crank casing 8, and separate inlets may be used for each fan. In order to avoid impeding the cooling current, the driving clutch 11 is mounted as shown, and the magneto 9 is situated in the fuel tank 10. The engine may have several cylinders. Fig. 2 shows a modified arrangement wherein the fans are in separate casings connected by distancepieces 15, and the outlet from the casing is adjustable. Specification 273,790, [Class 7 (ii), Internal-combustion engines, Arrangement &c. of], is referred to.
Patent GB-1007346-A (GB)
Title: New sulphonamides and a process for their preparation
IPC: C07D285/10
Filed: 1964-06-04
Abstract: The invention comprises sulphanilamido-1,2,5-thiadiazoles of the formula <FORM:1007346/C2/1> in which R is a C1- 3 alkyl group and their preparation by reacting a 4-(N-acylsulphanilamido)- or bis-(acylaminobenzenesulphonyl)-amino - 3 - halo - 1,2,5 - thiadiazole with a metal alcoholate MeO.CH2.CH2.OR in which R is an alkali metal atom and subjecting the product to alkaline saponification.
Patent GB-1223042-A (GB)
Title: Flail knife assembly
Inventor: WOODRING ROBERT WESLEY
IPC: A01D34/535
Filed: 1968-05-16
Abstract: 1,223,042. Flail knife assembly. INTERNATIONAL HARVESTER CO. 16 May, 1968, No. 23302/68. Heading A1F. A flail mower comprises rotary shaft 16 carrying welded lugs 18 through which extends bolt 20 fastened by nut 22, and a mounting hook 30 upon which knives 24 are supported. The mounting hook is of such a form that individual knives can be threaded on to the hook, the latter being forcibly fitted over bolt 20 by way of gap 44. The hook, made of spring steel, retains its radial position under normal operation of the mower but when the knives encounter a solid object it is forced back so that its ends 46 engage shaft 16 thus minimising damage to the knife assembly.
Patent GB-589249-A (GB)
Title: Latex treatment
IPC: C08C1/04
Filed: 1944-11-23
Abstract: <PICT:0589249/III/1> <PICT:0589249/III/2> The removal of volatile matter from latex is effected in a vessel of substantially circular horizontal cross-section by the injection of steam horizontally at right-angles to the radial direction.  With the apparatus shown, steam from the pipe 12 is injected into the latex in the bottom of a cylindrical stripping column 1 through the four nozzles 14, each welded into a piece of pipe 15 open at each end.
Patent GB-169674-A (GB)
Title: Improvements in ammunition hoists
IPC: F42B39/14
Filed: 1920-05-27
Abstract: 169,674. Armstrong, Whitworth, & Co., Ltd., Sir W. G., Lee, H. W., and Swindale, J. W. May 27, 1920. Loading-appliances.-Relates to ratchet-operated hoists as described in Specification 143,336 in which the lifting-pawls are pivoted to a slider reciprocating vertically in the trunk 34, the retaining- pawls 35 being pivoted to the trunk. According to the present invention, one or more flash-tight doors 41 are arranged in the trunk so that, as the lifting-pawls rise, these doors are automatically moved out of the path of the projectile into pockets 42 in the side of the trunk. In the form shown, a sliding door 41 is connected by links 44 and bell-crank levers 45 to a bar 47 cross-connecting the links 37 which operate the retaining-pawls.
Patent GB-186247-A (GB)
Title: Improvements in or relating to laminated springs and their mountings
IPC: B60G11/107
Filed: 1921-09-03
Abstract: 186,247. Nevatt, C. G. Sept. 3, 1921. Semi-elliptic springs.- Relates to laminated springs which are arranged to bear against camshaped blocks so that the points of contact between the spring and blocks move along the spring towards the centre as the load increases. According to the invention, one end of the spring b is connected to the frame a by links e, the point of connection between the frame and links being such that the movement of the links compensates for the lengthening of the spring b due to flattening and keeps the centre of the spring substantially in the same perpendicular line throughout its movement. As shown, the links e are connected to cheeks e<1> on one of the cams c, by a bolt which passes beneath the spring b to prevent it from jumping clear of the cheeks e<1>. The spring b is guided on the other cam by plates g.
Patent GB-904005-A (GB)
Title: Improvements in and relating to vacuum brake diaphragm type cylinder and piston assemblies
Inventor: LORD WILFRED
IPC: F16J3/06
Filed: 1958-07-22
Abstract: 904,005. Brake cylinders. PETERS & CO. Ltd., G.D. July 22, 1959 [July 22, 1958], No. 23536/58. Class 103 (1). [Also in Group XXVI] In a vacuum brake cylinder comprising a piston 10 movable in a cylinder 5 within an outer casing 1, the piston is sealed by a flexible sleeve 25 secured at one end to the piston and at the other to the cylinder wall 6 by constricting bands 31 which may be of metal and of C-section as shown. The ends of the sleeve are formed with beads 30 and are secured in grooves 27 and 29 in the cylinder wall and in the piston respectively.
Patent GB-427073-A (GB)
Title: Improvements in signalling apparatus
IPC: H04M1/02
Filed: 1934-08-15
Abstract: 427,073. One-way systems. KLEIN, J., 85a, Mollardgasse, and PASCHKES, C., 14, Gilgegasse, both in Vienna. Aug. 15, 1934, No. 23556. [Class 40 (iv)] [See also Group XXXVIII] In a signalling system, telephony is used for communication in one direction and selectively controlled lamps or other devices for signalling in the other direction. The system is applicable for signalling between the front door and interior of a house. A box a at the front door is fitted with a microphone b and three lamps c, d, e controlled by switches in a box j in the house which also carries a telephone receiver l. When the caller rings, removal of the receiver from hook k completes the speaking circuit and lights lamp c which illuminates a sign such as " what do you want." When the caller has intimated his business, the occupier presses button v or w to light lamp d or e to indicate to the caller that his presence is not required or that the occupier is coming to the door. Electromagnetic indicators or bells and buzzers may be used instead of lamps.
Patent GB-1447933-A (GB)
Title: Manufacture of watermarked paper
IPC: D21F1/44
Filed: 1974-05-28
Abstract: 1447933 Watermarking paper PORTALS Ltd and A J TOOTH 26 June 1975 [28 May 1974] 23645/74 Heading D2A Paper is watermarked during or after formation using an endless flexible carrier 7, 32 or 51 moving in a non-circular path around spaced axes and carrying embossing and/or shaped projecting attachments, for producing a watermark in paper, the carrier being replaceable by another of different length by adjusting the spacing of the axes. The carrier may be a foraminous bronze wire belt, alone or supported, as in Fig. 6, by another belt, e.g. of plastic mesh in which case the support belt 53 may be correspondingly embossed to prevent the embossing of the belt 51 from being crushed. In a Fourdrinier machine (Fig. 1) the belt 7 may be guided around a driven dandy roll 6, which may contain vacuum and/or over-pressure chambers, and an adjustable roll 8. Alternatively (as in Fig. 5 not shown) the Fourdrinier wire may itself constitute the watermarking carrier. When applied to a cylinder machine (Fig. 4), the belt 32 passes around the surface of the cylinder mould 35 and at least one adjustable roll 33, 34.