baber/WOPTO huggingface dataset:
Patent GB-1449792-A (GB)
Title: Cyanide-free electrolyte for the electrodeposition of silver
IPC: C25D3/46
Filed: 1975-03-03
Abstract: 1449792 Electro-depositing silver SCHERING AG 3 March 1975 [1 March 1974] 8741/75 Heading C7B A CN-free electrolyte for electro-depositing Ag comprises in aqueous solution a Ag compound, a thiosulphate, and one or more additives selected from (a) organic compounds having at least two N atoms and a gram MW of 300 or more and/or (b) S compounds and Se compounds in which the S or Se is in the "minus one or two" oxidation state. The Ag concentration may be 0.5 to 60 g/l, added as silver sulphate, nitrate, chloride, bromide, thiocyanate, oxide, carbonate, sulphamate, acetate or citrate, or as ammonium or alkali metal (e.g. Na or K) silver cyanide, thiocyanate, sulphite or thiosulphate complex; silver complexes with (poly) amines may be used. Preferably the Ag compound and S 2 O 3 <SP>2-</SP> are incorporated as a Ag complex e.g. Na 3 Ag(S 2 O 3 ) 2  or Na 4 Ag 2 (S 2 O 3 ) 3 ; alternatively the S 2 O 3 <SP>2-</SP> may be added as its ammonium and/or alkali metal salt. The molar ratio of S 2 O 3 <SP>2-</SP> to Ag<SP>+</SP> is preferably at least 3:1. Preferably the solution has a pH of 5 to 14. Compound (a) may be a polyamine e.g. polyethylene polyamine, or other polymer made by polymerization of polyethylene or polypropylene imine or by polyaminoalkylation of ammonia or a primary or secondary amine, or by reaction of epi-halohydrin e.g. glycerin dichlorhydrin with ammonia or (poly) amine; many starting materials are specified. Compound (a) may also be heterocyclic e.g. polyvinyl-2(or 4)-pyridine. Numerous examples of compounds (b) are specified, including: polyvinyl-pyridinium-N-sulphopropylbetaine, (di)seleno-(di)glycolic acid, diphenyl disulphide-2,2'-dicarboxylic acid, diethyl disulphan, methyl propyl selenosulphan, K 2 Se 2 , KSeCN, bis(p-k sulphophenyl)-diselenan, K benzylselenosulphonate, propyl selenocyanate, sulpholan selenocyanate, tribenzyl sulphonium or triethyl selenonium Br, dithiahexane (or heptane, or octane)-dicarboxylic acid, dithiadecane-disulphonic acid and thioglycolic acid. Further additives may be ammonium or alkali metal sulphate, (pyro or bi) sulphite, (bi) carbonate (tetra) borate, sulphamate, acetate, citrate or phosphate or boric acid. The electro-deposited Ag may be used for jewelry, cutlery, electrical contacts, or metallized plastics or ceramics.
Patent GB-1424586-A (GB)
Title: Bottom sheet feeder
IPC: B65H7/18
Filed: 1973-02-22
Abstract: 1424586 Feeding sheets ADDRESSOGRAPH MULTIGRAPH CORP 22 Feb 1973 [22 Feb 1972] 8832/73 Heading B8R In an apparatus wherein sheets are separated from the bottom of a pile, supported on surface 10, by a friction roller 13, separation of more than a single sheet is prevented by a retarding member 29 shaped to force the leading edge of the lowermost sheet below the surface of the rollers 13, Fig. 3. The support for the retarding member has an abutment surface 28 for the leading edge of the pile. Surface 107 of the retarding member directs the leading edge of the lowermost sheet downwards to increase the area of contact of the sheet with roller 13. A downwardly biased, freely rotatable roller 14 urges the pile towards the roller 13. The separated sheets are taken up by a nip roller pair driven faster than roller 13. Roller 13 is connected to its drive shaft by an overrunning clutch to permit the nip roller pair to remove the sheet without resistance. A detector on surface 10 energizes the drive motor for roller 13 when a pile is present on the surface. A further detector may be provided to de-energize the drive when the trailing or leading edge of each sheet passes beyond the nip roller pair.
Patent GB-564330-A (GB)
Title: Improvements in pipe couplings
IPC: F16L19/04
Filed: 1943-06-02
Abstract: 564,330. Pipe joints. AIRSEALAND, Ltd. June 2, 1943, No. 8842. Convention date, Jan. 15, 1943. [Class 99 (i)] In a joint of the kind in which a flared pipe end 11 is drawn up on'a tapered spigot 12 by a coupling nut 30, the conical surface 33 of the nut which engages the flared pipe end is recessed to receive a ring 24 of harder metal than the pipe, the ring biting into the pipe -before the surface 33 engages therewith, and having a leading edge of not more than 90 degrees.
Patent GB-1426761-A (GB)
Title: Sewing machine
IPC: D05B3/02
Filed: 1973-02-23
Abstract: 1426761 Sewing machines G TOLLE 23 Feb 1973 [6 May 1972] 8913/73 Heading D1G In a sewing machine having the needle below the work and the loop taker on a pivoting bracket arm above the work, the needle bar 12 is reciprocated by a crank, and is embraced in a needle-bar gate 20 which pivots about an axis A. Pivoted on a projection 50 of the gate is a linked bracket 52 and flat leaf spring 57, linked to another flat leaf spring 73 through a universal joint 60 (Fig. 5). The second leaf spring is fixed to two identical arms 76 and the three together form a bell crank lever. A drive link 90 is driven by a crank pin 44 (Fig. 4) and being fixed to the bell crank lever, rocks the universal joint along a curved path D (Fig. 4). Because the leaf spring 57 is attached to the gate which pivots about the axis A (see Fig 3) the universal joint also follows the curved path B (Fig. 3) and so causes the gate to oscillate about its axis A. The two leaf springs 57 and 73 flex only in the plane XX to permit this motion. By adjusting the position at which the drive 90 is attached to the bell crank arms 76 the amplitude of oscillation of the gate may be adjusted, and by adjusting the screws 53 and 55 on the gate the position of the gate may be adjusted without altering the amplitude of its oscillation.
Patent GB-496384-A (GB)
Title: Improved means for controlling the acoustic properties of rooms
IPC: E04B1/82
Filed: 1937-03-25
Abstract: 496,384. Fluid-pressure servomotorcontrol systems. OELSNER, W. March 25, 1937, Nos. 8922 and 8923. Convention dates, March 26, 1936 and March 20, 1937. [Class 135] [Also in Group XXXVIII] In an arrangement for varying the tension applied to vibratory plates p, mounted adjacent the boundary surfaces of a room, in accordance with sound pressure prevailing in the room and having separate controlling means according to the frequency range of the sound, the high frequency components pass through a filter T and an amplifier B to energize a relay p controlling a motor q which operates a three-way valve u connected between a source z of fluid pressure and pipes leading to opposite ends of a cylinder w in which is enclosed a piston v attached to one of the plates p.
Patent GB-127904-A (GB)
Title: Improvements in or relating to the Landing Devices of Aeroplanes.
IPC: B64C25/60
Filed: 1917-06-21
Abstract: 127,904. Vickers, Ltd., and Duncan, T. S. June 21, 1917. Pneumatic, hydraulic, and like springs.-Relates to shock-absorbers for use on aeroplanes when landing or moving along the ground, and consists in constructing a pumping-mechanism for maintaining the pressure of the air above a predetermined minimum, the pump being brought into action only when the air pressure falls below the predetermined minimum. T h e arrangement is particularly applicable for use with the form of shock-absorber described in Specification 568/15. Fig. 1 shows a section of such a shock-absorber fitted with the pumping-arrangements. The lower telescopic cylinder D is closed at its outer end by a sleeve G which carries the pump mechanism. A protective cap S may be used, or the sleeve may be closed at the end, except. for the valve opening. The cylinder H formed on the sleeve G has a non-return valve I at its lower end, and receives at its upper end a hollow piston K provided with non-return valves 0, M at its upper and lower ends respectively. The piston depends from a skeleton frame K<1>, and is held in its raised position by a spring R, the upward movement being limited by the engagement of the frame K<1> with the frame P carried by the sleeve G. When the air pressure above the oil &c. E falls below the upward pressure of the spring R, any motion of the shock-absorber causes the pump to come into action, and compressed air passes through the valve 0 until the pressure has been so raised that the piston is held down against the action of the spring R, when no further pumping takes place.
Patent GB-450988-A (GB)
Title: Improvements in or relating to apparatus for electrically heating bars and other members
IPC: H05B3/00
Filed: 1935-03-22
Abstract: 450,988. Heating bars &c. by passage of current therethrough. WILKINSON, H., 5, Morris Grove, Kirkstall, Leeds. March 22, 1935, No. 9022. [Class 39 (iii)] Apparatus for heating metal bars or members comprises contact blocks 1 wired to a transformer 14 and with movable jaws 7 pivoted to the blocks and capable of rapid simultaneous movement into or out of contact with the bar placed across the blocks 1, which are insulated from and slidable upon one or more supporting elements 2, to allow the distance between the blocks to be varied, the jaws being insulated from and slidable relative to a common operative member 8 connected to a foot-operated lever 12 for moving the jaws into contact with the bar. The blocks 1 and jaws 2 have detachable faces 'and remain open until operation of the foot lever 12, which is connected to the support 8 by spring-loaded plungers 10, or good contact may be obtained by springs between the support 8 and the jaws. The blocks are insulated from the bar 2 by fibre sleeves 6 and have pendent legs 4 engaging a transverse bar 5 to' prevent rotation, and pendent legs 9 on the jaws engage over the bar 8.' The jaws and blocks may be connected by a flexible conductor. The blocks 1 may be slidable on the bar to allow expansion of the heated member, or the blocks may be held fixed by two slotted members 18 secured to the legs 4; a pin 19 passes through the slots 21 and a hand wheel 22 locks the members 18 together. Additional resilient jaws may be provided along the bar to be heated. A press button 30 and switch are provided in the supply circuit to the transformer 14.
Patent GB-1086619-A (GB)
Title: Process and apparatus for the thickening of slurries
Inventor: TURNER GEORGE GARNHAM
IPC: B01D33/06
Filed: 1965-03-03
Abstract: 1,086,619. Rotary drum filter. CANADIAN INGERSOLL RAND CO. Ltd. March 3, 1965, No. 9044/65. Heading B1D. The drum of a rotary drum filter comprises two concentric cylindrical screens 22, 24, incoming slurry being delivered by pipe 18 to the closed end 28 of inner screen 22 whereby some filtrate is drawn off, the thickened slurry then passing out of the open end of screen 22 into a surrounding vat 12 for further filtration by outer screen 24 on which a filter cake builds up, the filtrates passing outwards through screen 22 and inwards through screen 24 being withdrawn from the annular space between the screens to outlet 20. In Fig. 2 the two filtrates are mixed, but in Fig. 5 (not shown) the annular space is divided by a cylindrical wall and the two filtrates are withdrawn separately. In Fig. 2 a spray head 50 directs water under pressure on to the inside of screen 22 above the slurry level to remove deposit therefrom. In Fig. 4 (not shown) the annular space between the screens is fitted with spaced scoops which lift and empty filtrate back through screen 22 as the drum rotates, which arrangemeat may replace or supplement spray head 50. Filter cake is removed from outer screen 24 by a couch roll (58) and coacting blade (60), (Fig. 3, not shown). The drum is supported by rollers 38, 39 engaging inside and outside of drum end flanges 34, 36, and is rotated by motor 46 driving a gear 44 which engages internal gear ring 42 of flange 34. Sealing ring 48 on end wall 16 of vat 12 engages rotating flange 36. The inner screen 22 may be of wire mesh finer than outer screen 24, and where separate filtrates are obtained the cloudy filtrate from screen 22 may be recirculated.
Patent GB-125959-A (GB)
Title: An Improved Machine for Crushing the Shells of Nuts and other Hard-shelled Fruits.
IPC: A23N5/00
Filed: 1919-04-10
Abstract: 125,959. Olier et Cie, A. Jan. 31, 1914, [Convention date]. Mills and apparatus; cracking nuts.-A machine for crushing the shells of nuts or hard-shelled fruits comprises a rotary disk and a stationary wall, the space between the disk and wall decreasing from the periphery to the centre, and the disk or wall being provided with a helical surface which gradually approaches the other surface in the direction of rotation of the disk. In the apparatus shown in Figs. 1, 2, and 6, two conical disks 4, carried by a shaft 3, are arranged in a casing 2, formed on each of the end walls and on each side of a middle wall w,ith a helical surface x. The disks are formed with radial conveying-ribs 14. The disks and the helical surfaces are formed with concentric teeth 20, 20a for pureventing the nuts from slipping. The nuts are placed in a hopper and fall through shoots 5 into the spaces between the disks and walls, the crushed nuts falling through the bottom of the casing.
Patent GB-287860-A (GB)
Title: System for regulating the resistance of the keys of a pianoforte
IPC: G10C3/16
Filed: 1928-03-26
Abstract: 287,860. Gorli, G. B. March 28, 1927, [Convention date]. Pianofortes, adjusting touch of; silencing. - The touch is automatically compensated on operation of the soft pedal, by springs n carried by a longitudinal bar l, which bar is depressed by a button e on a lever e<1> connected to the soft pedal rod q so that the springs n are pressed against the keys. The touch may also be controlled by a finger-piece a which depresses the bar l by a system of levers c - - c, c<1>. Individual adjustment of the springs is obtained by regulating- buttons f. The Specification as open to inspection under Sect. 91 (3) (a) states that the longitudinal bar d may be raised by the rod p under hand or foot control to silence the action.
Patent GB-299758-A (GB)
IPC: A24F15/12
Filed: 1928-03-26
Abstract: 299,758. Wezel & Naumann Akt.- Ges. Oct. 31, 1927, [Convention date]. No Patent granted (Sealing fee not paid). Cases formed by bending sheet material; drawer and shell cases; lined and covered cases. - A pocket case for cigarettes &c. is formed from a strip of corrugated cardboard or paper folded to U-form, the bend of the U forming one of the narrow walls of the case and the other two narrow side walls being formed by lateral projections of the main walls. The side walls overlap and are secured by adhesive, by rivets, &c. The cardboard or paper may be covered on one or both sides and may be plain, printed or ornamented. The case may comprise two parts sliding one into the other, in which case the side walls of the inner part are not securely connected with each other.
Patent GB-943287-A (GB)
Title: Improvements in titanium dioxide pigments
Inventor: LAWRENCE LESLIE JOHN
IPC: C08G83/00
Filed: 1961-03-13
Abstract: Titanium dioxide particles are treated with one or more olefine oxides so that the olefine oxides remain associated with the particles. The treatment may be carried out at temperatures and pressures above atmospheric by either placing the titanium dioxide and olefine oxide in a sealed container, or by passing a stream of the olefine oxide over the finely divided particles. The excess olefine oxide may be removed after treatment by allowing the mixture to stand under normal or reduced pressure and/or elevated temperature and if desired in a stream of inert gas. The titanium dioxide particles may have previously been coated with silica, alumina and/or titanium dioxide.  Substituted olefine oxides may be employed. Olefine oxides referred to are ethylene, propylene, butylene, amylene, hexylene and styrene oxide.  In all examples temperatures of 100 DEG C. are employed.ALSO:Titanium dioxide particles are treated with one or more olefine oxides so that the olefine oxides remain associated with the particles of titanium dioxide.  The treatment may be carried out at temperatures and pressures above atmospheric by either placing the titanium dioxide and olefine oxide in a sealed container, or by passing a stream of the olefine oxide over the finely divided titanium dioxide. The excess olefine oxide after treatment may be removed by allowing the mixture to stand under either normal or reduced pressure and/or elevated temperature and if desired, in a stream of inert gas. The titanium dioxide particles may have previously been coated with silica, alumina and/or titanium dioxide. Substituted olefine oxides may be employed.  Olefine oxides referred to are ethylene, propylene, butylene, amylene, hexylene and styrene oxide.  In all examples temperatures of 100 DEG  C. are employed.  In Example (1) the coated titanium dioxide was incorporated into an aqueous paint medium containing a dispersing agent and an aqueous emulsion of polyvinyl acetate.
Patent GB-1061886-A (GB)
Title: Starch-based jelly candies
Inventor: ROBINSON JOHN WILLIAM
IPC: A23G3/00
Filed: 1964-03-04
Abstract: In the preparation of starch base jelly candies from a mixture of a sweetener and starch, the starch employed consists essentially of amylose and amylopectin in the ratio 75: 25 to 40: 60. The starch may be derived from potato, cassava, sorghum, sago, or preferably corn, and is mixed to obtain the desired amylose-amylopectin ratio, for example with high-amylose starch from hybrid corn, amylose, or defatted amylose.  The preferred mix is substantially pure amylose with acid-modified or oxidized thin-boiling confectioners' starch.ALSO:In the preparation of starch base jelly candies from a mix containing 90-95 wt. per cent. sweetener and 5-10 wt. per cent. of starch, based on the dry substance, wherein the starch is dissolved in water at a temperature above 135 DEG C. but not in excess of that at which the starch tends to be degraded, the hot fluid mixture is concentrated to a water content of 16-22 wt. per cent., for example by boiling in an open kettle, and formed into jelly candies, the starch employed consists essentially of amylose and amylopectin in the ratio 75:25 to 40:60.  Any suitable sweetener may be employed, for example mixtures of sucrose and corn syrup, with or without dextrose.  The starch may be derived from potato, cassava, sorghum, sago, or preferably corn, and is mixed to obtain the desired amylose: amylopectin ratio, for example with high-amylose starch from hybrid corn, amylose, or defatted amylose.  It is preferred to use blends of substantially pure amylose with acid modified or oxidised thin-boiling confectioners' starch.  Conventional colouring and flavouring agents may be added, preferably after the concentration step.
Patent GB-700816-A (GB)
Title: Improvements in or relating to tools for removing tyres from wheels
Inventor: DAW REGINALD FRANK
IPC: B60C25/02
Filed: 1951-04-20
Abstract: 700,816. Tyre levers. DUNLOP RUBBER CO., Ltd. April 4, 1952 [April 20, 1951], No. 9239/51. Class 144(1) A tyre-removing tool, particularly for freeing the tyre-bead from the wheel rim, comprises pivoted hooked members for engaging respectively the rim-flange and adjacent portion of the tyre, an adjustable link having at one end a hook to engage the opposite rim-flange and pivoted at its other end to the tyre-engaging member on which is also pivoted a hand-lever for applying the operative thrust on the tyre. As shown, the hand-lever 1 has a curved hook-end 3 to engage the rim-flange, and the tyre-displacement member 6 is formed of two plates 5 with hooked ends 7 similar to the hook 3 of lever 1. The parts 3, 7 are pivoted together at 8 and are locked in the (inoperative) position shown by means of a removable pin 23. The adjustable link 13 having a hook 18 at one end to engage the rim-flange opposite that engaged by the hooks 7, is pivoted at its other end on pins 14 riveted to the plates 5 of the tyre-displacement member. In use, the rim is first assembled between the hook 18 and the superposed hooks 3, 7, the pin 23 is withdrawn, and the hooked ends 7 of the plates 5 are forcibly pressed against the tyre by means of the lever 1. The locking pin 23 may be replaced by a hand-controlled spring-detent or similar catch.
Patent GB-549341-A (GB)
Title: Improvements in or relating to apparatus for feeding cut tobacco
IPC: A24C5/39
Filed: 1941-07-22
Abstract: 549,341. Feeding cut tobacco. RUAU, F. F., and MOLINS MACHINE CO., Ltd. July 22, 1941. No. 9240. [Class 130] [Also in Group XVII] In apparatus for feeding cut tobacco, for example to cigarette-making or tobacco-packaging machines, in which tobacco is removed from a hopper 2 by a corded combing member such as a roller 5 or a belt, the tobacco is fed to the member 5 by a shaking or vibrating conveyor plate 4. The plate 4 is supported by flat springs 6 fixed to support bars, or by parallel levers, and is actuated by a connecting-rod 9 and an eccentric 11 on a shaft 12 which may be driven from a picker roller 16. A shield 13 is provided beneath the roller 5. Short tobacco tends to accumulate at the end of the plate 4 nearest the roller 5 and is removed by the carding of the roller and so becomes mixed with the other tobacco. The tobacco on the roller is tamped by a device 14 described in Specification 385,210. Tobacco is fed to the hopper by an oscillating flap 3 as described in Specification 370,640 and the feeding device may be constructed as in Specification 520,178. In a modification, the flap 3 is omitted and the plate 4 has a horizontal rearward extension. Specifications 394,809 and 549,397 also are referred to.