baber/WOPTO huggingface dataset:
Patent GB-107020-A (GB)
IPC: C07C51/41
Abstract: 107,020. Gladysz, T. March 12, 1915, [Convention date]. Tartrates.-Mixtures of sodium and potassium bitartrates are prepared from tartar-containing materials (containing potassium bitartrate and calcium tartrate) by the following process :-The raw materials are extracted with cold dilute hydrochloric acid, the acid extract is partially neutralized with lime or calcium carbonate, and the resulting precipitate is separated from the mother-liquor and washed to remove calcium chloride; the precipitate is then boiled with sodium carbonate solution in amount sufficient to neutralize the potassium bitartrate present and to convert the calcium tartrate into neutral sodium tsrtrate; the solution is decolorized by animal charcoal, and the mixed bitartrates are precipitated by adding the calculated amount of hydrochloric or sulphuric acid; the precipitate is filtered, washed, and dried. Sodium bitartrate is prepared from the mother-liquors resulting from the first precipitation described above by neutralizing with calcium carbonate, converting the calcium tartrate into neutral sodium tartrate by means of sodium carbonate, and converting the neutral sodium tartrate into sodium hitartrate by means of hydrochoric or sulphuric acid. The Specification, as open to inspection under Sect. 91 (3) (a), states also that the motherliquors from the second precipitation described above, may, if hydrochloric acid has been used, be added to the first mother-liquors, or, if sulphuric acid has been used, they are treated with lime and then boiled with calcium sulphate; the calcium tartrate so obtained is then added to that prepared from the first mother-liquor. This subject-matter does not appear in the Specification as accepted.
Patent GB-637428-A (GB)
Title: Improvements in or relating to weathertight doors
IPC: B63B19/00
Filed: 1948-04-19
Abstract: 637,428. Bulkhead doors. BUCHANAN & CO., Ltd., H., and DEMPSTER, D. April 19, 1948, No. 10710. [Class 113 (i)] A weathertight door for use on ships, comprises a door 1 formed from steel plate with internal flanges 3 along its four edges; a door case 4 formed from steel angle bar and attached to the bulkhead 2, the door being provided with packing 7 which is engageable with the edge of one leaf of the angle bar 4 forming the door case, hinges 9 connecting the door with the door case via hinge bats 6 having nuts 10 allowing for adjustment of the door while dispensing with the necessity for fastenings along the hinged edge of the door, and fastening spindles 11 mounted in the door near the edge thereof remote from the hinges and supported by brackets 17 and carrying locking members 13 adapted for engagement with wedge members 16 on the door case.
Patent GB-473600-A (GB)
Title: Improvements in or relating to the treatment of filaments, threads, foils and similar materials
IPC: D01F2/28
Filed: 1936-04-14
Abstract: <PICT:0473600/IV/1> The strength of thermoplastic filaments, threads, foils, and the like is improved by treating with fluids under pressure by running the material 1 from the outer air into an end chamber 4 containing compressed air or other inert fluid, over a positively driven feed device 5 contained in said chamber, through a communication 6 into a stretching chamber 7 containing steam or hot water above 100 DEG  C., if desired, through a third chamber 19 and back into the air, the temperature of the first chamber being maintained substantially below that of the steam or water.  The means for controlling the temperature of the first chamber may comprise a jacket 27 through which a cooling liquid is circulated, or a cooling medium may be circulated in pipes within the chamber, or a cooling medium may be sprayed inside the chamber or on to the exterior thereof; the chamber may be finned as at 29 and blackened on the outside to assist radiation.  Each chamber is provided with a pressure gauge 12, pressure release valve 13 and steam trap 14. Specifications 443,707 and 443,773 are referred to.
Patent GB-1547473-A (GB)
Title: Cephalosporin compounds
IPC: C07D257/04
Filed: 1976-03-17
Abstract: The cephalosporin derivatives of the formula I, in which the symbols have the meanings given in Claim 1, are novel antibiotics. They are prepared from 7-aminocephalosporanic acid, by acylation of the amino group and substitution of the acetoxy group by the corresponding substituted 5-mercaptotetrazole. The derivatives which are obtained can be converted into esters. <IMAGE>
Patent GB-631690-A (GB)
Title: Improvements in or relating to engineers' work holding devices and like appliances
IPC: B25B1/22
Filed: 1947-04-22
Abstract: 631,690. Work-holders. WALFORD, H. A., ALL PRECISION ENGINEERING, Ltd., and HALE, L. E. April 22, 1947, No. 10777. [Class 61 (ii)] [Also in Group XXII] The work-holding arm of an engineer's or other work-holder is jointed to and angularly movable on a base-member and is clamped in any desired position by a hydraulic plunger acted on by liquid pressure. The work-holder, not shown, is screwed at 48 to the stem 43 of a ball 42 retained in a hemispherical recess 41 of an inverted cup-shaped socket member 40 by a clamping member 45 held in the member 40 by a ring 47. The arm 43 is vertically movable in a slot 44 in the member 40 which is freely turnable about a flange 38 on the base-member 10 securely fixed to a bench 12. The ball 42 is clamped by the upward movement of a plunger 35 slidably fitted in a motor cylinder 14 in the base-member, being actuated by the pressure created by movement to the left of a pump piston 28 in the cylinder 16 on liquid 37 such as thick oil which completely fills the cylinders 14 and 16 and the passageway 15. The piston 28 is operated by a cam 21 which engages the head 33 of a thrust screw 32 and is pivoted at 20 to brackets on the base-member and connected by links 24 and a lever 27 to a pedal rod. A cranked arm 50 and counterweight 51 may be used to balance the workholder. In a modification, the clampingmember 45 is provided with a coiled compression spring to make the release of the ball more certain and in place of the cam 21 the piston 28 is actuated by a thrust screw and coiled compression spring, the pressure being released by a lever which engages a shoulder on a thrust rod and compresses the latter spring.
Patent GB-127138-A (GB)
Title: Improvements in Collet Chucks for Machine Tools.
IPC: B23B31/173
Filed: 1918-07-03
Abstract: 127,138. Churnet Valley Engineering Co., and Barrance, C. July 3, 1918. Chucks. - A bevelclosing collet chuck is closed by a sliding ring acting through adjustable wedges and is opened by a spring. A rotating cylindrical casing 1 within a fixed casing 2 is screwed on to the hollow spindle 4 by a boss 3, and contains the sliding ring 5, the gripping-jaws 8, and the actuating- wedges 6, 7. The jaws 8 are loosely dovetailed to the inner wedges 7, which are pressed apart by a spring 11. The wedges 6 have rounded parts 9 to bear on the bevelled ends of the containing slots in the sliding ring 5. The inside diameter of the jaws 8 is varied to suit the work by a ring 12, which engages the wedges 7 and, with them; is moved axially by rotating a screwed ring 13 held against axial movement by the wedges 6 and a coverplate 16. The sliding ring 5 is connected by bolts and distance-pieces to a ring 10 movable on the boss 3 by means of a lever 17 acting through a spindle 18 and pinions 19 on quadrants 20 which engage pins 21 projecting from a ring 22 acting on the ring 10 through balls 23.
Patent GB-161586-A (GB)
IPC: B41J19/64
Filed: 1921-04-14
Abstract: 161,586. Leidenroth, G. April 16, 1920, [Convention date]. Platen-roller couplings.-A coupling for the linespacing wheel and platen roller is provided with a releasing-member that is adapted to rotate the platen roller independently of the line - spacing wheel. As shown in Figs. 1 and 2, the linespacing wheel D is mounted freely on the platen shaft C and is normally coupled thereto by pairs of balls G, G<1> which are arranged between the rim d<2> of the wheel and an eccentric flange c<1> on the shaft, and are urged apart by springs H. A knob i<1>, secured to a revoluble spindle J, is provided with a releasing-member or disc K having fingers k<3> for engaging the balls, and recesses k<1> for engaging studs c<3> on the flange c<1>. On rotating the knob i<1> in either direction, two balls G or G' are released by two of the fingers k<3>, and the sides of the recesses k<1> then engage the studs c<3> and drive the platen roller. The linespacing wheel is provided with a knob d<2>, Fig. 1, and engages a roller-detent E.
Patent GB-831007-A (GB)
Title: Improvements in or relating to automatically closing hosecocks
Inventor: FRASER JOHN
IPC: B67D7/48
Filed: 1957-04-03
Abstract: 831,007. Fluid-pressure servomotor-control systems. AVERY-HARDOLL Ltd. March 24, 1958 [April 3, 1957], No. 10921/57. Class 135. In an automatically closing hosecock for dispensing liquid fuels of the kind in which the flow of fuel through the hosecock 10 induces suction in a tube 16 leading from an orifice 18 adjacent the tip of the hosecock nozzle, the suction drawing air through the tube until the orifice is closed by being immersed in liquid, whereupon the flow of air is stopped, causing the valve to close, a ball 22 is provided in the tube 16 to move freely between a seat 19 and a stop 21 the ball being located on the side of the seat nearer the tip of the nozzle so that it is urged away from the seat by gravity when the nozzle is pointed downwardly. When the nozzle end becomes immersed in liquid the ball 22 is sucked upwardly to seat on the seat 19 thus closing the tube. The valve itself may be of any suitable form such as that described in Specification 735,364.
Patent GB-856449-A (GB)
Title: Apparatus for washing test tubes
Inventor: LEWIS JOHN ELWYN
IPC: B01L99/00
Filed: 1958-04-08
Abstract: 856,449. Washing test tubes. LEWIS, B. R. July 8, 1959 [April 8, 1958], No. 10983/58. Class 138(1). Test tubes for use in determining the butter fat content of milk, and each having a bulbous end 38 connected by a portion 36 of restricted cross-section to a portion 34 of enlarged crosssection, are cleaned by internal sprays of clearing liquid supplied through tubes 20 having orifices 26 providing jets for cleaning the portions 34, the portions 32, 38 being cleaned by jets provided by hollow needles 28 carried by the tubes 20. Each needle 28 has a conical skirt 30 fitting over a nipple at the end of a tube 20 and providing a support for a test tube. At the supporting points the crosssections of the skirts 30 and the test tubes differ to permit escape of the cleaning liquid. The latter is received in a tank 10 having a drain pipe 48, and surrounding a header 12 through which the cleaning liquid is supplied to the tubes 20.
Patent GB-1461325-A (GB)
Title: Method and apparatus for protectively covering container necks
IPC: B29C63/42
Filed: 1974-03-12
Abstract: 1461325 Heat-shrinking tubular elements on to container necks COLGATE-PALMOLIVE CO 12 March 1974 [12 March 1973] 10998/74 Heading B5A [Also in Division B8] A method of applying and heat-shrinking a tubular element of plastics material, e.g. films of polyvinylchloride, polyesters, polyethylene, polypropylene, polyvinylidene or polyisoprene, on to the neck 13 of a container, such as an aluminium or aluminium alloy toothpaste tube or a bottle, comprises positioning the container 11 at an element applying station 31, opening the leading end of a supply of heatshrinkable tubing 59 by means of a floating mandrel while advancing the tubing 59 towards the container neck 13, severing a leading end portion of the tubing to provide a tubular covering element, pushing the covering element on to the neck by further advancement of the tubing, and heat-shrinking the covering element on to the container neck. In an apparatus for performing the method, toothpaste tubes 11 are fed to the station 31 on an intermittently operable carrier drum (33), Fig. 3 (not shown), to and from which they are carried continuously by a chain conveyer having cantilevered tube supporting fingers (22), Fig. 2 (not shown). The tubes 11 which are fed to the station 31 from a drying oven (20), Fig. 1 not shown), may retain sufficient heat at least partially to heat-shrink the tubular elements on to the tube necks when they are applied at the station 31. The carrier drum (33) and a portion (30), Fig. 1 (not shown), of the chain conveyer adjacent the drum are moved intermittently by a Geneva mechanism. The tubes 11 are held in grooves (34), Fig. 3 (not shown), of the drum by suction. The tubing 59 which is supplied in flattened condition from a reel (60), Fig. 3 (not shown), is opened out around a floating mandrel having portions 63, 66, 67, 68, 69 and 70. Chuck jaws 98 are movable inwards towards the mandrel to clamp the tubing against a sliding sleeve 96 carried on the mandrel. The chuck jaws 98 are movable axially of the mandrel, when the tubing is clamped, to advance the sleeve 96 and tubing and to feed the tubular element on to the neck of the tube 11. The tubular element is severed prior to being fed on to the tube neck by circular knives 81 mounted on brackets 82 for movement into and out of engagement with the tubing on the mandrel and the brackets 82 are rotatable continuously about the mandrel, the operations of feeding the tubes 11, feeding the tubing 59 and severing the tubing are synchronized. The machine includes two stations 31 associated with the drum 33 so that two tubes can be treated simultaneously.
Patent GB-1313890-A (GB)
Title: Schiff bases and their production
IPC: C07C241/00
Filed: 1970-10-30
Abstract: 1313890 Schiff bases INTERNATIONAL FLAVORS & FRAGRANCES Inc 30 Oct 1970 [4 Nov 1969] 11015/72 Divided out of 1313889 Heading C2C The invention comprises compounds of the formula where R 1  and R 2  are H or alkyl of 1-4 carbon atoms, R 3  is alkyl of 1-4 carbon atoms or cycloalkyl and n is 1 or 2. Compounds where n is 1 are prepared by reacting a Schiff base of the formula with a Grignard reagent to form a complex which is then reacted with a myrtenyl halide. Compounds where n is 2 may be prepared sirnilarly.
Patent GB-294515-A (GB)
Title: An artificial material for articles for general and industrial use
IPC: H01B3/48
Filed: 1927-04-25
Abstract: 294,515. K³hne, F. A. W. April 25, 1927. Fibrous plastic compositions.-Shreds or flakes of paper or woven material up to 50 sq. cm. in area are mixed with an excess of a binding medium of a rubber, resin, or glue-like nature, and allowed to remain until the flakes have collected at the surface or bottom of the liquid, according to the relative specific gravities, forming a layer in which the flakes lie substantially parallel to one another whereupon the mass is removed, allowed to drain, and submitted to pressure with or without heating to form plates or moulded articles. Fillers, colouring matter. graphite, metal dust &c. may be incorporated during manufacture.
Patent GB-938088-A (GB)
Title: Heat exchangers
IPC: F28D9/00
Filed: 1961-03-27
Abstract: 938,088. Plate-type heat exchangers. LUWA A.G. March 27, 1961 [March 28, 1960], No. 11166/61. Class 64 (3). A heat-exchanger comprises a stack of plates 2 each having an upstanding flange 19 at one end and upstanding side flanges 14 extending over more than half of the plate length from the other end. The flanges are provided with inwardly extending lips 14b, 19b which engage the adjacent plate above the alternate plates are turned through 180 degrees so that the unflanged portions 18, 14 define openings 4<SP>1</SP>, 411 at the side of the stack and openings 3<SP>1</SP> at alternate ends of the stack. The plates are formed of aluminium sheet 0.2 mm. thick and are spaced 2 mm. apart. The plates may be connected by vertical bolts and the joints between the plates may be sealed by painting or spraying with varnish. In an air dehumidifier, Fig. 4, a heat-exchanger comprising plates 2a, 2b is enclosed by a housing 40 divided by a partition 43. Air flows into the housing 40 and passes above the plates 2b to an evaporator 25 whence the air passes above all plates 2a to a condenser 29 and is expelled from the housing by a fan 30. The condenser 29 and the evaporator 25 are connected to a cooling circuit containing a working medium and including a compressor. In a modification (Figs. 5 and 6, not shown), the edges of the plates 2 not provided with upstanding flanges are formed with downwardly extending flanges which engage the upstanding flanges of the adjacent plate below.
Patent GB-491610-A (GB)
Title: Improvements in or relating to grinding and polishing machines for hard materials
IPC: B24B41/047
Filed: 1937-04-19
Abstract: 491,610. Grinding &c. marble &c. SPEED SURFACES, Ltd. (Brendel, G. F.) April 19, 1937, No. 11173. [Class 60] A machine for grinding and polishing the surface of hard material, for example, granite, porphyry, marble, glass, steel, &c., comprises a shaft a rotating in a bearing o and having at its lower end a disc c on which are mounted split bearings e, which receive trunnions e of tubular bearings f, the bearings e being clamped by screws g to hold the bearings in any desired angular position. Rotatable in the bearings f are spindles h, each carrying at its lower end a plate i to which is fixed a grinding-stone j, each spindle also having at its upper end a crank arm k provided with a roller l running in a cam groove in a part m secured by bolts p to a member n fixed to the part o ; by adjustment of the bolts in slots q the eccentricity of the part m in relation to the shaft a may be adjusted. In operation, as the shaft a is rotated, carrying round the stones j, the spindles h and the stones are oscillated to an extent determined by the eccentricity of the part m ; the inclination of the spindles also may be adjusted, according to the hardness of the material undergoing treatment. A lever engaging trunnions s on the part o may be used to lift the apparatus or to apply pressure to the stones j.
Patent GB-1101457-A (GB)
Title: Manufacture of bowling balls
IPC: B29C43/14
Filed: 1965-03-16
Abstract: 1,101,457. Bowling balls. STOWE-WOODWARD Inc. 16 March, 1965 [11 May, 1964], No. 11206/65. Heading A6D. A bowling ball 10 in which the heavy conventional top weight insert at the location of the finger holes 30, 32, 34 is eliminated and a novel "negative top weight" insert is substituted at an opposed location comprises a shell portion 12, including a hollow veneer 14 and a hollow core 16, and an insert portion 18 bonded within hollow core 16, the spherical interface 20 between veneer 14 and core 16 and spherical periphery 21 being developed about the major centre 22, and the spherical interface 24 between core 16 and insert 18 being developed about an eccentric centre 26 that is spaced from major centre 22, and is manufactured as follows:-the material for the core 16 is precisely shaped by die components 56, 58, 60; the die components 56 and 58 are then removed from each other and the die component 60 is pivoted out from the position therebetween; a solid cellular insert 18 is fitted into the cavity formed by the two parts of the core 16 and the adjoining edges of the core parts are pressed into adherence with each other, an indicium 34 is applied at the outer core surface on a line passing through the major centre 22 and the eccentric centre 26; the subassemblage 16, 18 is then removed from the mold; a veneer 14 is formed by die components 78, 80, 82; the die components 78, 80 are separated, consequently separating the two halves of the veneer 14, and the insert and core subassemblage 16, 18 is positioned with its marker 35 aligned with marker 34, at the exterior of the veneer; then the veneer 14 is pressed together about the subassemblage and the completed assemblage is placed in a mold 90, 92 which, after being fastened by clips 94, 96, is heated to convert the assemblage into an integrated polymerised ball. A further similar embodiment is also described.
Patent GB-1414460-A (GB)
Title: Display system and apparatus
IPC: G09F9/37
Filed: 1972-03-10
Abstract: 1414460 Matrix displays PLESSEY CO Ltd 2 Feb 1973 [10 March 1972] 11246/72 Heading G5C A display system comprises an opaque screen 1 having a plurality of translucent windows 2 and rotatable shutters 13 operated by magnetic fields, shutters in each being pivoted on a common vertically extending shaft or spindle. The system is operated by a slide 6 comprising electromagnets 7a, 7b ... each aligned with a row of windows and a magnetic, electrostatic or optical detector 8 which senses markers 5 on the screen aligned with columns of windows. (The shutters shown in Fig. 1 are known.) Moving the slide from left to right over the screen with all the electromagnets 6 energized results in all windows being exposed. A pattern is then produced by moving the slide back and energizing selected electromagnets as each marker is reached to move associated shutters. A map may be placed over the screen and the latter used to provide additional information. A transparent layer containing data may be placed over the map, scanned by an array of photocells and the data transferred to the screen.
Patent GB-1380723-A (GB)
Title: Starting of fluorescent lamps
IPC: H01F5/00
Filed: 1971-04-26
Abstract: 1380723 Starting discharge lamps GAF CORP 20 March 1972 [26 April 1971] 11475/71 Heading H2H In order to improve the starting and restarting operations of a fluorescent lamp 10 having a resistive ballast 14 an inductor 16 is provided, the lamp 10, ballast 14 and inductor 16 being connected in series across an A.C. supply L, N. The inductor having a core 22, inside a bobbin 20 on which the coil 24 is wound and two terminals 28 which extend through one end member of the bobbin. The inductor 16 may have an air, iron, ferrous or ferrite core and is encapsulated in a plastics material. The arrangement is particularly suitable for lamps above 40 watts. A bi-metal starting strip 12 is provided in parallel with the lamp.
Patent GB-115183-A (GB)
IPC: F41B7/08
Abstract: 115,183. Macdonald, M. Oct. 9, 1917. Guns.-Relates to automatic toy machine-guns which are actuated by turning a handle and consists in using a turn-table for conveying the projectiles from the hopper to the barrel. The barrel' d is mounted on a body a with, a flat top b on which is mounted a turntable c. The turntable has a series of openings q each adapted to receive a projectile f and is driven by an arm n carried by the spindle of the actuating handle o. The arm n works through a slot in the part b so as to engage the openings q. The handle drives a toothed segment l which gears with a segment j pivoted on a shaft i and arranged to draw back the spring- actuated projecting lever h. The barrel is open at the rear and the projectiles pass into it through an opening r.
Patent GB-1496988-A (GB)
Title: Hot conductors
IPC: H01C7/04
Filed: 1976-03-23
Abstract: 1496988 Sintered body SIEMENS AG 23 March 1976 [28 April 1975] 11565/76 Heading C1J [Also in Division H1] A negative temperature-coefficient resistor for use at high temperatures comprises a sintered body of terbium oxide and erbium oxide. The preferred composition contains 10 mole per cent of terbium oxide and 90 mole per cent erbium oxide. The body may be a bead, plate or tube, with Pt or Pt alloy electrodes, and may have a glass coating or be located in a glass or quartz housing.
Patent GB-129132-A (GB)
Title: Improvements in, or connected with, the Manufacture and Production of Compounds for Cooling Metal Cutting Tools and the Metal Cut and of Materials to be used in the preparation of such Compounds.
Inventor: JOHNSON JAMES YATE
IPC: C10M135/02
Filed: 1918-07-15
Abstract: 129,132. Johnson, J. Y., (Houghton & Co., E. F.). July 15, 1918. Lubricants.-A composition for lubricating and cooling metal-cutting tools consists of a base composed of wool fat, or other animal fat, sulphur, lard oil or other animal oil, and paraffin oil dissolved when required for use in a mineral oil, several examples of suitable mineral oils being given. The sulphur and wool fat are mixed at a temperature of about 350‹ F. and the other constituemts added. Perfumes or antiseptic ingredients may also be added.