baber/WOPTO huggingface dataset:
Patent GB-658825-A (GB)
Title: Improvements in or relating to cases for typewriters, calculating machines and like apparatus
IPC: B41J29/13
Filed: 1949-05-19
Abstract: 658,825. Boxes. BORIL, J., and BORIL, Z. H. May 19, 1949, No. 13368. Convention date, Nov. 24, 1948. [Class 18] [Also in Group XIV] A case for a typewriter or like machine comprises a box 4 and a cover 1 carrying the machine on its interior surface, the box and cover being permanently attached to one another by laterally projecting pins 2 on the cover sliding in slideways 3 in the box thus enabling the machine to be moved readily from a stored position to a position of use, the box having front and rear supports 6, 6<SP>1</SP> which extend across the width thereof, the front support 6 serving to support the rear of the cover when the case is closed and form therewith a dust-tight seal, and the rear support 6<SP>1</SP> serving to support the rear of the cover when the case is opened. The rear support 6<SP>1</SP> abuts against the front of the cover when the case is closed and the front support 6 abuts against the front of the cover when the case is open. The supports may be made of plastic material.
Patent GB-1149757-A (GB)
Title: Clamp structure
IPC: F16C1/14
Filed: 1966-03-25
Abstract: 1,149,757. Supporting hoses. AEROMOTIVE MFG. CO. 25 March, 1966 [29 March, 1965], No. 13404/66. Heading F2P. [Also in Divisions D1 and E2] A clamp for a hose or the like comprises an annular member consisting of two arcuate members which have lateral flanges by which they are secured to the hose by spring clips and a circumferential groove in which moves a slider connected to a cable. The clamp comprises two grooved semi-circular members 16, 17 with a semi-circular, central recess and lateral flanges 22, 23 with grooves for spring clips 26, 27 to clamp the members to the hose 13. The inner walls of the groove 36 are undercut to accommodate the slider 46 attached to the end of the cable 12. The central recessed portion of the members has a plurality of projections to grip the surface of the hose. The annulus and slider may be made of nylon or polytetrafluorethylene and the slider may automatically detach itself from the clamp either through the walls of the groove flexing at a predetermined tension in the cable or by the spring clips detaching from the flanges. In an alternative embodiment the slider comprises two arcuate sections hinged together at one end, the other ends being connected by a screw on which pivots an attachment for the end of the cable. The slider has a central ridge which engages the circumferential groove in the clamp. The clamp may accommodate hoses of various diameters by having a gap between the ends of the semi-circular clamp members and by means of the projections which grip the surface of the hose.
Patent GB-134798-A (GB)
IPC: B42D1/10
Abstract: 134,798. Hornby, R. C. July 26, 1919. Bookbinding-Means for renovating, strengthening, or forming the binding of music sheets, manuscripts, &c., consists of an adhesive tape with incisions formed therein alternately on opposite sides of a fold line in which the two ends of each incision terminate, as shown, thus forming tabs or male pieces and leaving the edges of the strip unbroken. The body of the strip is secured to the outer sheets and the tabs to the inner sheets. For binding more than four sheets, two or more superposed strips are employed, the tabs on the lower strip being passed through the openings in that above.
Patent GB-727257-A (GB)
Title: Improvements in or relating to method of preparing alkali metal xanthates
IPC: C07C329/00
Filed: 1952-05-28
Abstract: A process for preparing alkali metal xanthates comprises preparing a dispersion of an alkali metal alcoholate by treating an alkyl alcohol with an alkali metal hydroxide at a temperature of from 70 DEG  to 100 DEG  C. in a liquid organic medium that is inert to the alkali metal alcoholate and to carbon disulphide, said medium being present in a volume of from about 16 to about 36 times that of the solid metal hydroxide and containing a maximum of one mol. of water for each mol. of alkali metal hydroxide, cooling the reaction mixture below the boiling-point of carbon disulphide, and reacting carbon disulphide with the dispersed alkali metal alcoholate, whereby substantially pure alkali metal xanthate is formed.  The liquid organic medium may be an excess of the alcohol, in which case preferably not more than 10 mols. of alcohol per mol. of hydroxide are used, or may be a solvent for the alcohol.  The reaction with the carbon disulphide can be effected at 30 DEG  to 45 DEG  C.  As alkali metal hydroxides lithium, sodium, potassium, rubidium and caesium hydroxides are specified. Methyl, ethyl, isopropyl and sec.-butyl alcohols are referred to. Suitable inert solvents are toluene, isopropyl ether, heptane and gasoline.  Some water may be present in the alcohol as long as the total water present does not exceed two mols. per mol. of xanthate to be prepared.  In examples: (1) sodium hydroxide containing 25 per cent by weight of water is melted, reacted with excess isopropyl alcohol, and the slurry of alcoholate, after cooling, is reacted with carbon bisulphide at 45 DEG  C.; (2) in a process similar to (1), reaction is effected at 30 DEG  C.; (3) toluene is employed as the medium in reacting the molten sodium hydroxide with isopropyl alcohol and the slurry is thinned by adding acetone before the reaction with carbon bisulphide.  Further examples, similar to (3) illustrate the use as inert media of (4) heptane, (5) gasoline, (6) isopropyl ether and heptane, (7) and (8) isopropyl ether and toluene.
Patent GB-634401-A (GB)
Title: Improvements in or relating to metal pickling
IPC: C23G1/06
Filed: 1947-05-20
Abstract: In a process for pickling metal objects, an inhibitor is used comprising the reaction product of an aldehyde with urea and/or thiourea.  The inhibitor may be added to any of the usual acids-sulphuric, hydrochloric, hydrofluoric-pickling baths in an amount exceeding 0.001 per cent and up to saturation concentration, together with, if desired, a wetting agent, e.g., of the aryl alkyl polyether alcohol type, and also other inhibitors such as diphenylurea, glue, or sodium chloride.  The inhibitor is produced by reacting the aldehyde, preferably formaldehyde, with a mixture of urea and thiourea in an acid medium.
Patent GB-1178813-A (GB)
Title: Intubation Tubes
Inventor: DOHERTY GEORGE O
IPC: A61M16/04
Filed: 1968-03-20
Abstract: 1,178,813. Intubation catheters. G. O. DOHERTY. 20 March, 1968 [15 April, 1967], No. 13597/68. Heading A5R. Disposable intubation tubes for establishing communication with and for sealingly engaging larger conduits, comprise a tubular portion 4, 42 and a bulbous cuff 44, 10 mounted on arid encircling the tubular portion, the cuff being formed from a compressible material which when compressed or distorted seeks to revert to its original configuration. The tubular portion may be made of flexible synthetic or natural material and the cuff from a spongy rubber, plastic, or other natural or synthetic material having a trabeculated or cellular consistency. The cuff may be provided with a smooth cavity-free outer surface impervious to liquid by the application of heat, coating with a plastic or latex or by using a cove of latex or plastic within which the fo or spongy material is flowed, extruded otherwise introduced. Endotracheal tubes in accordance with the invention are shown in Figs. 1 and 6. In another embodiment, the cuff is located eccentrically with respect to the tubular portion. The cuff may be adhesively secured to the external surface of the tubular portion.
Patent GB-122372-A (GB)
Title: Improvements in Apparatus for Hoisting and Lowering Boats.
Inventor: SMITH GEORGE CHRISTIAN
IPC: B63B23/04
Filed: 1918-08-21
Abstract: 122,372. Smith, G. C. Aug. 21, 1918. Boat-lowering gear; davits.-A boat suspended in davit arms adapted to be swung out by the weight of the boat is pulled out over the ship's side when the ship is inclined by a rope hooked to the boat and passing around a drum on the capstan. The rope 9 wound on a drum 12 is so hooked to the side of the boat 1 that the hook falls away when the boat has been lowered over the ship's side. The drum is thrown in and out of engagement with the capstan 4 by a foot-operated clutch 13.
Patent GB-1157768-A (GB)
Title: Miniature Crossbar Multiswitch
IPC: H01H67/26
Filed: 1968-03-21
Abstract: 1,157,768. Cross-bar switch. INTERNATIONAL STANDARD ELECTRIC CORP. 21 March, 1968 [21 April, 1967], No. 13709/68. Addition to 1,124,932. Heading H1L. A cross-bar switch comprises a base-plate formed by a printed circuit board 1, Fig. 1, on which a number of resilient contact elements 5 are mounted, two rows only being shown, each contact element being anchored at one end to the board in electrical contact with a circuit on the board. The base is fixed to the lower surface of a frame 8 which accurately locates the lower ends of the contact elements and which carries on its upper surface the select and connect bars 12 and 13, only two of each being shown, which are movable by operation of the electromagnetic actuators 27 and 28. Mounted over the top of frame 8 is a contact support plate 38, the top surface of which is grooved, as at 41, to take stationary contact elements 40 in the form of springs, as described in Specification 1,100,875, which are held in place by ribs 44 on lid 39 which engage transverse grooves 98 in the support plate 38 and apply retaining pressure on the springs 40. The bottom surface of the support plate is grooved to provide an L-shaped guiding path for the free ends of the contact elements 5 between a position in which the elements 5 are out of contact with the fixed contact springs 40 and a position where they engage between adjacent turns of the spring. The select and connect bars are each resiliently biased in a direction away from the actuators 27 and 28 by spring- loaded tongue members in the walls 19 and 20 of the frame 8 and are displaced in the other direction when the actuators are energized. Each select bar 12 has a number of rectangular apertures through which respective movable contact elements pass and each connect bar has a number of rectangular apertures each having a tooth projecting into the interior thereof. Switch operation.-Normally, the movable contact elements, e.g. 57 and 58, Fig. 4, which shows only the active portions of the apertures in the select and connect bars, are biased by their own resilience into one corner of the bar apertures. To select a cross-point the connect bar is operated to the position shown in Fig. 5 then the select bar is operated as at 51 in Fig. 7, the connect bar is released, the tooth 56 carrying the movable contact to engage the fixed contact 59 and finally the select contact is released leaving the selected movable contact 58 still held, by the restoring spring action on the connect bar, in contact between adjacent turns of the fixed contact spring 59. To release the connection the connect bar is operated once again when the movable contact returns, by its own resilience, to its original position.
Patent GB-401205-A (GB)
Title: Process for the manufacture of crystallised esters of the female sexual hormones
Filed: 1933-05-11
Abstract: Esters of female sexual (follicle) hormones are obtained in crystalline form by treating crude hormone oils with alkali, separating neutral substances, subjecting the alkali compound to acylation in aqueous solution and causing the acyl compound to crystallize.  Examples describe the preparation of the benzoate by benzoylation and of the acetate by acetylation according to the Schaffen-Baumann method, the crude products being recrystallized from alcohol.
Patent GB-628298-A (GB)
Title: Improvements in and relating to gas turbine plants and rotary dynamic compressor for application in the same
IPC: F02C7/143
Filed: 1947-05-22
Abstract: 628,298. Axial-flow compressors; gas turbines. HANSEN, K. E. May 22, 1947, No. 13793. Drawings to Specification. [Classes 110(i) and 110(iii)] Turbine-type compressors-cooling: In order to minimise the work of compres. sion in a rotary dynamic axial-flow compressor, particularly for gas turbine plant, the medium is cooled during the actual compression, by liquid cooling of the surfaces carrying all the sets of vanes, the compressing being preferably thus made substantially isothermal. The compressor has at least two sets of relatively-moving vanes, and in order to distribute the cooling between the sets, the compression work is preferably distributed uniformly by arranging the blade angles so that the rates between pressure rises in the successive rows of vanes in the same stage is between 0.4 and 2.5. The heat conduction of the vane fixing is made not less than that of the vanes themselves, by providing a suitable contact area or by welding or soldering the vanes. In the particular embodiment described, Fig. 3 (not shown), the compressor has a water-jacketed stator and a hollow rotor drum through which water is circulated by way of a hollow shaft and a pipe concentric therewith. Gas turbines.-The Specification describes a plant using the compressor, Fig. 2 (not shown), in which air passes successively through the compressor, a heatexchanger, a combustion chamber, a turbine driving the compressor, a second combustion chamber, a load turbine, and the heat-exchanger. Boilers, with indirect heating of the working medium may replace the combustion chambers or be used in conjunction therewith. Other arrangements with larger or smaller numbers of units may be used.
Patent GB-130809-A (GB)
Title: Improvements in, or connected with, Envelopes.
Inventor: NICHOLSON JOHN GIBB
IPC: B65D27/06
Filed: 1918-08-24
Abstract: 130,809. Nicholson, J. G. Aug. 24, 1918. Envelopes.-A reversible envelope made from the blank shown may be opened by tearing along the perforated lines y, and may then be reversed and re-used a number of times, being sealed by the detachable gummed tabs b.
Patent GB-905972-A (GB)
Title: Isomerisation of dichlorobutenes
IPC: C07C17/358
Filed: 1961-04-17
Abstract: The invention comprises a process for converting one of the isomeric dichlorobutenes, 1,4-dichlorobutene-2 and 3,4-dichlorobutene-1, into the other, according to which it is heated at at least 120 DEG C. in the presence of a substantially anhydrous zirconium fluoride catalyst having a crystallite size of at most 400 Angstrom units radius, and the resulting mixture of dichlorobutenes is separated, e.g. by fractional distillation. The process may be carried out in the liquid phase (elevated pressure may be used) or in the vapour phase. Suitable catalysts are those described in U.S.A.  Specification 2,805,121.
Patent GB-345144-A (GB)
Title: Improvements in percussion tools
IPC: B25D9/10
Filed: 1930-05-06
Abstract: 345,144. Percussive tools. RASCH, L., 7, Magnus Gate, Oslo, Norway. May 6, 1930, No. 13911. Convention date, May 7, 1929. [Class 124.] A percussive tool driven by the combustion gases of a twostroke internal-combustion engine driving a flywheel 4 has a twostep free piston 6, 7, the return stroke of which is made by gases in a chamber 11. Cock 13 controls these gases and can be closed when idling. Port 12 is placed so as to cushion a blow made when the tool is withdrawn. Gases from chamber 11 through port 10 cushion the return blow of piston 6, 7, and are afterwards returned to the chamber through the valve 16.
Patent GB-779657-A (GB)
Title: Improved mechanism for timing the fuel-injection in internal combustion engines
Inventor: DINGLE WILLIAM ROY
IPC: F02D1/00
Filed: 1954-05-12
Abstract: 779,657. Timing fuel injection. DAVEY, PAXMAN & CO., Ltd. May 5, 1955 [May 12, 1954], No. 13911/54. Class 135. Fuel-injection timing-mechanism, which is built into a hub 1, Fig. 1, bolted on an enginedriven gear 2, acts as a coupling between the latter and a shaft 4 having a plate 5 to which is attached the shaft of the fuel-injection pump, not shown; the mechanism consists of a cylinder 8 in a casting 9 fixed to hub 1, the cylinder axis being normal to the hub axis, whilst in the cylinder are opposed pistons 10 and 11, Fig. 2, which act through pivoted levers 12 and 13 with cam profiles 121 and 131 on dogs 16 projecting from a flange 17, Fig. 1, integral with the shaft 4. Within one piston 10, Fig. 2, is a piston valve 19, one end of which is extended beyond the casting 9 and formed as a weight 21 ; the valve is biased by an adjustable spring 22. The dogs are loaded by springs 43 which absorb the reverse torque in the pump drive. The pistons 11 may be dispensed with and the degree of injection-adjustment is limited. With increasing engine speed the valve 19 is moved outwards against the loading of spring 22 by centrifugal force and brings grooves 35 and 36 in the inner piston surface into communication via a groove 38 in the valve 19, whereupon engine lubricating oil from a channel 33, supplied by way of a pipe 25, Fig. 1, and the interior of the shaft 4, passes into a passage 34, Fig. 2, and flows through the grooves 35, 36 and a passage 37 to the space between the pistons 10 and 11 which are thereby moved away from each other and by means of the levers 12, 13 and dogs 16 urge the shaft 4 forward relatively to the gear 2 and so advance the injection of fuel. This adjustment continues until the engine speed is constant, each outward increment of the valve being " followed up " by the piston 10 ; in the balanced position of the mechanism the valve is lapped. Upon a decrease in engine speed the valve 19 is moved inwardly by its spring 22 to open the space between the pistons to a drainage groove 39 in the valve via piston groove 36 whereupon the load of the injection pump reacts against the pistons 10 and 11 and retards the injection of fuel.
Patent GB-479406-A (GB)
Title: Improvements in or relating to the casting of non-ferrous alloys
IPC: B22D21/02
Filed: 1937-05-19
Abstract: 479,406. Casting processes. FACHANSTALT FUR NEUZEITLICHES GHESSEREIWESEN DIPL.-ING. DR. ING. L. WEISS GES. May 19, 1937, No. 13978. Convention date, Oct. 17, 1936. [Class 83 (i)] Moulds; jackets.-In casting non-ferrous alloys, e.g. copper-zinc or copper-nickel, in a chill mould, this is first smoothed or is lined with a heat-resisting paint or paste, e.g. waterglass, talc, and calcium chloride, brought to a red heat, and freed from air by introducing some oil, fat, carbon tetrachloride, alkali metal, or alkali earth metal. The mould is surrounded with resilient insulating material pressed firmly about it by an iron shetl to prevent distortion.
Patent GB-1387312-A (GB)
Title: Arrangement for providing electrical facilities below floor  level
Inventor: GERN S
IPC: H02G3/18
Filed: 1972-03-24
Abstract: 1387312 Connector boxes SIEMENS AG 24 March 1972 [3 April 1971] 13991/72 Heading H2E An arrangement for providing electrical facilities below a floor surface comprises a cover, 11, Fig. 1, hinged to one side of a compensating frame 9 secured in the floor and an electrical device carrier 10, Fig. 4, pivoted to the frame, such that it can be pivoted from a first position in which the cover may be closed flush with the floor, to a second position, in which it projects above the floor, an abutment surface 33 of the device bearing against the frame, such that a mechanical loading placed on the carrier will be supported by the frame. A container 2, Fig. 1, fixed in the floor, has an inner frame 4 and a cover frame 7, the compensating frame 9 fitting in the central aperture 8. The frames 4 and 7 have levelling and securing screws, details of which are given. Attached to the frame 9 is an apparatus carrier 10 having two power sockets 12, a line output box 13, and a hinged cover 11. Cable, e.g. telephone lines, extend from the box 13 to the exterior via the packing or seal 14. The carrier 10, formed with side walls, has arms 18, Fig. 4, which are pivotally connected to a second pair of arms 20 attached to the compensating frame, springs 21 being secured between the pairs of arms to raise the carrier on opening of the cover. The wall 23 of the carrier has two recesses which engage corresponding projections 25 in the cover, engagement being maintained by a magnet 26 in the carrier and an iron member 27 in the cover. The cover has side walls 28 attached to one of which is a leaf spring 29 which limits rotation of the lid. The spring may be disengaged to allow the cover to be completely opened. Further light current electrical apparatus may be secured in the container 2, e.g. in the space between the carrier 10 and that side of the frame 9 to which the cover is hinged, and may be covered by a plastic foil glued to the frame. Rubber packing 36 serves to protect against foreign bodies and damp. The access aperture 8 may be square thus allowing rotation of the compensating frame to suit particular requirements.
Patent GB-1501151-A (GB)
Title: Contact spring-sets
IPC: H01H63/33
Filed: 1975-04-04
Abstract: 1501151 Contact spring set TELEFONAKTIEBOLAGET L M ERICSSON 4 April 1975 [8 April 1974] 13993/75 Heading H1N In a contact spring set comprising fixed contact springs 3 and movable contact springs 4 pre-stressed towards the fixed springs and held away from them by a lifting card 8 having apertures through which the movable springs 4 project, the card 8 being maintained in the rest position by return springs 1 and 2, the card is secured tightly to the ends of the return-springs, without loss of tolerances in dimensions and spring movement, by forming bent-up tags 12- 14 and shoulders 16, 17 at the free ends of these springs and pushing these through offset slots in the card (Fig. 3, not shown) so that the body of the spring will be twisted as the tags go through and will then snap back into place. The ends of the movable contact springs are held by the upper edges of rectangular apertures in the card which is lifted by a bar 10 to operate the contact set. A multiple unit comprising several spring sets side-by-side may be made by forming all the lifting cards in a single sheet, pushing them simultaneously on to the return springs of all sets and then severing the individual cards.
Patent GB-559575-A (GB)
Title: Starting of internal-combustion engines
IPC: F01L13/08
Filed: 1942-10-08
Abstract: 559,575. Valve lifters. SANDERS, A. F. Oct. 8, 1942, No. 14135. [Class 7 (vi)] Compression is relieved at starting by a cam rod 12 acting upon an abutment 13 on the exhaustvalve push rod 14 to open the valve. The cam rod is pushed axially against the bias of a spring 17 and its return is retarded by a dashpot piston 18 moving in a cylinder 19 having an adjustable bleed hole 20. A non- return valve 22 on the cylinder 19 allows the unrestricted movement of the cam rod to its operative position.
Patent GB-498797-A (GB)
Title: New or improved packing device or support for maintaining the shape of shoes, slippers, sandals and the like
IPC: A43D3/14
Filed: 1938-05-12
Abstract: 498,797. Trees &c. for boots &c. SPENCER, T., and SPENCER & SON (WATERFOOT), Ltd., W. May 12, 1938, No. 14138. [Class 17 (iii)] A shoe form for packing and display purpo es for slippers, sandals, and other footwear with flexible uppers, is made by bending a flat strip or blank of appropriate form cut from a sheet of paper, cardboard, millboard, fibre board, celluloid, metal, or other flexible sheet material, the ends being brought together to form a continuous band of approximately the same shape as the shoe in plan and outline. The ends of the strip a, Fig. 1, are provided with means to connect them together, such as an interlocking tongue b<2> and slits c. The contour of the bottom edge a<5> of the blank is such as to conform to the periphery of the sole when in position, and the same blank will serve for both right and left hoes according to the direction of folding. An opening may be formed at the toe or other part corresponding to the shape of footwear to be supported, and supporting tongues may be provided on the blank to support shoe straps.