baber/WOPTO huggingface dataset:
Patent GB-569770-A (GB)
Title: Diazo dyestuffs
IPC: C09B33/10
Filed: 1943-12-02
Abstract: Disazo dyes are made by coupling one molecular proportion of a diazotized monoamine of the benzene series, carrying, in the p-position to the amino group, a group X-CO-NY-(wherein X represents a monochloro- or monobromo-alkyl radical of one, two or three carbon atoms and Y represents a hydrogen atom, an alkyl group of not more than six carbon atoms or a cycloalkyl group) and, optionally, substituents such as alkyl, alkoxy and halogen, but devoid of hydroxy, sulpho, aminosulphonyl and sulphane groups, with 1-amino-8-naphthol-4-sulphonic acid or with 1-amino-8-naphthol-3 : 6- or 4 : 6-disulphonic acid in acid medium, and coupling in alkaline medium with the resulting monoazo compound, one molecular proportion of a diazotized monoamine of the benzene or naphthalene series, which may be substituted, but is devoid of halogenoacylamino groups.  The components are so chosen that the final dyestuff does not contain more than three sulphonic acid groups.  The products are suitable for dyeing animal fibres, wool being specified.  In examples, the production of the following dyestuffs is described: 4-amino-1-N-cyclohexyl-o -chloroacetanilide --> (acid) H acid (alkaline) \sM aniline; the aniline may be replaced by m-nitroaniline, N-benzoyl-N-ethyl-p-phenylene diamine or m-aminobenzene sulphon-N-ethylanilide; 4-amino-o -chloropropionanilide --> (acid) S acid (alkaline) \sM 4-aminoacetanilide; 4 - amino - 1 - N -ethyl-o -chloroacetanilide --> (acid) H acid (alkaline) \sM 4-aminoacetanilide; 4-amino-1-N-cyclohexyl-o -chloroacetanilide --> (acid) K acid (alkaline) \sM p-aminophenylmethylsulphone.  A table showing the shades produced on wool by various other combinations is given, and the following additional components are specified: (i) for coupling in acid medium: 4-amino-1 - N - ethyl - or cyclohexyl - o  - chloropropionanilide; 4-amino - 1 - N - iso - propyl- or n-butyl-o -chloroacetanilide, 4 - amino - 1 - N - ethyl- or cyclohexyl-o -bromoacetanilide and 5-amino-2-N-cyclohexyl-o -chloroacet-toluidide; (ii) for coupling in alkaline medium: o-anisidine, 2.5-dichloroaniline, p-aminobenzenesulphonamide, p-sulphanilic acid, 5-chloro-2-toluidine, p-naphthionic acid, 4-chloro-2-aminodiphenyl ether, 4-amino-1-N-cyclohexyl-acetanilide, 41-amino-11-N-cyclohexylbenzanilide, m-aminobenzene-sulphon - o - anisidide, m - aminoacetophenone, p-nitraniline, 41-amino-11-N-ethylbenzanilide, 4- or 3-aminobenzoyl-N-ethyl-a -naphthylamine and 4-amino-1-N-cyclohexyl-N-phenoxyacetylaminobenzene.  The Provisional Specification includes also the use in the manufacture of the dyestuffs, of any 1-amino-8-naphthol sulphonic acid having the 2- and 7-positions free.
Patent GB-721920-A (GB)
Title: Waterproof shock-absorbing watch case
IPC: G04B37/05
Filed: 1952-07-17
Abstract: 721,920. Watches. JUILLERAT, C. J. July 17, 1952, No. 18130/52. Class 139. In a watch the movement is located in an outer case by an elastically compressible lining supporting the movement and having a circumferential flange, the case having means for gripping the flange to support the movement resiliently. The movement 7, Fig. 1, is fixed by screws 6 to a metal ring 3 which is surrounded by a ring or lining 4 of elastically compressible material. The ring 4 has a flange 5 which is gripped between the bezel 2 and the combined back and case band 1. A tube 11 carrying the crown 12 extends through a bore in the ring 4. If desired the dial 8 may extend between the bezel and the flange 5. In another example, Fig. 2, the flange 5 of the ring 4 is gripped between the back 1a and the case band 1b.
Patent GB-601069-A (GB)
Title: Improvements in and relating to electric vacuum tube oscillator and super-regenerative receiver circuits
IPC: H03D11/02
Filed: 1945-07-16
Abstract: 601,069. Valve generating circuits. PHILCO RADIO & TELEVISION CORPORATION. July 16, 1945, No. 18132. Convention date, July 15, 1944. [Classes 40 (v) and 40 (vi)] In a thermionic valve oscillator, which may form part of a super-regenerative receiver, the grid bias is controlled by two resistance-capacity circuits, the time constants of which are short and long respectively. Fig. 1 shows a superregenerative receiver comprising a normal Hartley circuit. A square wave generator 2 supplies the quenching wave and detector circuit 3 effects rectification. The grid bias circuit comprises condenser 14 and resistor 13 forming a long-time constant circuit, and condenser 10 and resistor 11 forming a short-time constant circuit relative to circuit 14, 13, and also to the time constant 2 L/R of the parallel tuned circuit 5 and 6. Coil 12 is self-resonant at carrier frequency, to provide a high impedance at this frequency. The long-time constant circuit 14, 13 tends to maintain a constant grid bias, while the short-term effect of the short-time constant circuit 10, 11 effects rapid adjustment in grid bias resulting from sudden changes in amplitude of the generated wave, making the mode of operation independent of minor circuit changes and discouraging any tendency to self-quenching. Suggested orders for the circuit components are given in the Specification. Resistor 13 may be adjustable. The invention may be applied to a normal oscillator to prevent " squegging."
Patent GB-1423056-A (GB)
Title: Venturi washer
IPC: B01D47/10
Filed: 1973-04-16
Abstract: 1423056 Venturi scrubber MAN WARME UND LUFTTECHNIK GmbH 16 April 1973 [18 April 1972] 18152/73 Heading B1R An annular gap venturi gas scrubber comprises a cylindrical inlet portion 3a, a truncated cone shaped discharge part 3c and an intermediate venturi portion 3b containing a displacement means 8 to create annular gap flow and which comprises two substantially conical parts 8a and 8b mounted on axial support 9 with their bases facing each other but separate to define a gap therebetween, wherein 8b is substantially hollow and allows scrubbing water to pass from a duct in support 9 into cavity 13, through bores 12 in the base 10 and contact the undersurface of part 8a in the region of abutment surface or surfaces 17. Support 9 may be moved axially to adjust the width of the annular scrubbing gap, the cone angles of 8b and 3b being chosen so that the annular gap therebetween has uniform cross sectional area throughout its axial length. In addition the gap between parts 8a and 8b may be made adjustable. The bores 12 may be replaced by slots or a ring gap. The outlet end of 3c is connected via deflecting vanes 4 to a water receiver chamber 5 and cyclone separator 7 (Fig. 1 not shown).
Patent GB-181535-A (GB)
Abstract: 181,535. Jackson, W. J. Mellersh-, (Bowman, S., and Roy, S. H. de). April 6, 1921. Feeding webs. - A motoroperated machine for issuing tickets singly from a strip, more especially adapted for use in restaurants &c. where the customer detaches the ticket and presents it to an attendant to be punched or marked with the amount of the purchase, is constructed so that the withdrawal of a severed ticket from the machine releases a lever to close the motor switch, the mechanism then completing a feeding and severing cycle and opening the switch ready for the next operation. The ticket strip 19 is led between a fixed slotted guide 21 and movable guides 20, the feed wheel 16 having pins 17 passing through the slot in the fixed guide and engaging perforations in the strip. The movable guides are pivoted to the frame and connected at 24 to an arm 25 which can be swung outwards to facilitate the insertion of a fresh strip. The motor 1 is geared to a shaft 9 carrying a disc 11 with a stud 12 adapted to engage with a Geneva stop wheel 13 on the shaft of the feed wheel, the disc 11 having a cut-away boss 11'. A 'disc 33 on the shaft 9 is fitted with a coiled spring 37, Fig. 4, and carries a pin 34 adapted to be engaged by a hook 35<1> on an arm 35. This arm 35 is fast on a rock-shaft 36 on which is also mounted an arm 38 passing through a slot in the top plate of the machine and resting upon a severed ticket. When the ticket is withdrawn by the customer, the arm 38 falls and moves the hook 35<1> away from the pin 34 to allow the disc 33 to be rotated one revolution. A pin 40 on the arm 35 engages a notch in a lever 42, Fig. 3, having a hooked end 42<1> normally engaging the hooked end of a pivoted member 45 carrying a switch blade 47, whereby upon the fall of the arm 38 the switch closes the motor circuit. A cam 39 upon the shaft 9 is connected by a link 52 with a sector arm 64 actuating the knife, and a bell hammer 61 is engaged by a pin 60 on the link. A counter may be actuated by a link 71 and arm 73 from the link 52. A pin 51 on the cam 39 engages a projection 50 on the member 45 to open the motor circuit at the end of the cycle. A pin 53 on the link 52 moves in a notch 54 in a slidable bar 44 connected to the lever 42 to bring the end 42<1> of the lever back into the path of the switch member 45.
Patent GB-438052-A (GB)
Title: Improvements in and relating to coffee percolators and coffee pots
IPC: A47G19/12
Filed: 1935-06-25
Abstract: 438,052. Coffee pots. McMAHON, S., 290, Umbilo Road, Durban, Natal, South Africa. June 25, 1935, No. 18158. Convention date, Jan. 31. [Class 129] A detachable milk container l is fitted to the top of a coffee pot so that the coffee heats the milk. The spout a of the container converges towards the spout of the coffee pot and the issue of milk is controlled by a valve operated by the lever o pivoted to the handle f. Coffee, milk, or both may therefore be poured singly or simultaneously. The top of the milk container is tilted to avoid spilling during pouring.
Patent GB-1338634-A (GB)
Title: Wing assemblies for aircraft
IPC: B64C39/00
Filed: 1971-05-28
Abstract: 1338634 Rotatable aircraft wings P ORAZI 28 May 1971 [25 Jan 1971] 18197/71 Heading B7G An aircraft wing rotatable about its spanwise axis comprises wing sheets 6 mounted on a frame which includes a spar 2 linked to the sheets so that it can flex in the plane containing the sheets during rotation of the wing without transmission of bending moments to the wing sheets. Transverse ribs 4 having end stops 5 extend from the spar through slots 7 in the sheets so that during rotation of the wing the sheets are urged outwardly along the ribs as far as the stops to leave a gap 8 between the sheets in which the spar is free to flex in the plane of the wing.
Patent GB-652667-A (GB)
Title: Improvements in fuel igniters
IPC: H02G15/08
Filed: 1948-07-07
Abstract: 652,667. Lighting burners. BAKER & CO., Inc. July 7, 1948, Nos. 18264 and 18265. Convention dates, Dec. 19, 1947. [Class 75(iii)] In an igniter for. organic fuels in a gaseous or finely divided state capable of being catalytically oxidized in a flowing fuel-air mixture in the presence of a catalyst, comprising an electrically heated helical closely spaced coil having a surface of catalyst metal, and a source of electrical power adapted to heat said coil to a temperature below the ignition temperature of said fuel in said fuel-air mixture and below the recrystallization temperature of said catalyst metal the coil consists of a wire having a diameter not greater than about 0.003 inch and not less than about 0.001 inch. The helical coil may be wound evenly, or, alternatively, wound so that the catalytic action occurs in two phases, e.g. as shown in Fig. 3 in which the coil 4 tapers from one end to the other and is wound more closely at the wider end. On supplying fuel-air mixture to the electrically heated coil 4 the closely wound end becomes heated sufficiently to initiate the catalytic reaction but flameless combustion only takes place at this part of the coil, ignition being initiated at the remaining part of the coil the heating of which is accelerated by conduction from the flameless combustion zone. Different forms of construction of the coil 4 as a two-phase catalyst may be employed, e.g. as a tapering or cylindrically helical coil having turns in the middle part more widely spaced than at the two ends, as a helical coil bent at right angles so that at the bend the turns are more widely spaced than at the two ends; or as shown in Fig. 6 in which an additional coil 4<SP>1</SP> of larger diameter is wound around the middle portion of a uniformly wound coil 4<SP>11</SP>. The coil 4<SP>1</SP> may consist of a coiled coil. In each case the catalyst may consist of platinum or of an alloy thereof with a metal of the platinum group, e.g. rhodium or iridium; or with another suitable metal, e.g. nickel, or it may contain refractory oxide or beryllium oxide. The wire may be formed wholly of the catalyst or may comprise a layer of the catalyst on a suitable core, e.g. of tungsten or molybdenum. The device is adapted particularly for igniting saturated hydrocarbons, e.g. methane, and for igniting finely divided kerosene. It may be used in stoves, furnaces &c. or in a cigarette lighter when gasoline may be used as fuel instead of the normal " lighter fuels." Alternatively, the device may be utilized for lighting a gas burner 1, Fig. 1, provided with a flash back port 2 and a flash back tube 3, whereby contact between the coil 4 and the fuel is terminated immediately after ignition. The electrical heating of the igniter 4 may be either continuous or controlled to coincide with the initiation of the fuel supply to the burner.
Patent GB-146337-A (GB)
Title: Vulcanizing apparatus
IPC: B29C35/02
Filed: 1920-07-02
Abstract: 146,337. Goodyear Tire & Rubber Co., (Assignees of Wattleworth, C.). Aug. 17, 1917, [Convention date]. Vulcanizing - chambers.-India-rubber articles, particularly tyres, are vulcanized by conveying moulds containing them through an oven, the time and temperature being adjusted so that the vulcanization is completed during their passage. A conveyer 8, Fig. 1, comprising wheels 10 with depending hooks 12, runs on rails 9, the hooks 12 passing through a slot 17, Fig. 2, into a vulcanizing chamber 5 which may be lined with firebrick and heated by jets of gas directed through tuyeres 20 on to refractory material 19. The moulds are slid on to a tilting table 32 which tips them into a saddle 34 whence they are picked up by the advancing hook and carried through the chamber to a second table 35 which tilts over flush with a receiving table 36. In a modification, the conveyer 24, Fig. 4, is enclosed entirely in the chamber and is provided with saddles 23. The mould is slid through a flap 30 on to a tipping table 37 released by trip-gear 39 operated when a saddle 23 comes into position. At the delivery end, the mould slides out of the saddle down a shoot through a second flap 30.
Patent GB-516354-A (GB)
Title: Improvements in or relating to the manufacture of sliding clasp fasteners
IPC: B29D5/02
Filed: 1938-06-20
Abstract: 516,354. Sliding-clasp fastenings. CORNER, G. H. C., GRANT, H. B., and LIGHTNING FASTENERS, Ltd. June 20, 1938, No. 18309. Addition to 444,405. [Class 44] The manufacture of sliding-clasp fasteners with. non-metallic fasteners according to the parent Specification is modified by the fastener members being lightly affixed to the tape during or immediately after the operation of mounting them thereon, such affixing being effected by means of an adhesive or by the action of a solvent applied to the tape. For instance one of the pull-through rollers may have a leather blanket saturated with solvent which is thus applied to the tape. A pressure feed of solvent may be given by a pump driven from the main drive shaft and the feed may be stopped while the tape is being pulled through to give blank separating lengths. The solvent action may be limited by diluting the solvent with alcohol. The final securing of the members is effected by dipping in a bath of solvent as described in Specification 426,644.
Patent GB-111923-A (GB)
Title: Means for Positioning Torpedo Screens.
Inventor: STRONG WILLIAM JAMES
IPC: B63G9/00
Filed: 1916-12-22
Abstract: 111,923. Strong, W. J. Dec. 22, 1916. Torpedo nets and screens.-A torpedo screen positioning-device for towed screens comprises a plate 2 which is formed concave towards the vessel and is attached to the spar tow-line 5 by a wire bridle 3 at points near the upper and lower edges, and in the rear of the longitudinal centre of the plate, so that the plate tows outwards and downwards and thereby maintains itself at the proper depth and the screen at the correct distance from the vessel. The bridle has rearwardly extending fingers 4 which can be adjusted, as by bending, to keep the plate at the correct angle. A screen for use therewith comprises preferably a number of wire sections, each made from a single piece of wire and comprising upper and lower bars 10 and diagonals 11. The sections are hinged together, as at 9, so that the screen can be folded compactly and stowed on deck. Floats 13 are used at intervals to support the screen in the water. One or several positioning-devices may be used along the screen, or separate screens and positioning devices may be used in line.
Patent GB-1017717-A (GB)
Title: Prefabricated heating structure
Inventor: WATSON LEE MAURITZ
IPC: F24D13/02
Filed: 1964-05-04
Abstract: 1,017,717. Heating fabrics. SINGER CO. May 4, 1964, No. 18446/64. Heading H5H. A heating fabric to be built into, e.g. walls and ceilings, comprises a “ inch mesh fibreglass netting treated with P.V.C. and having a heating cable with thermoplastic insulation arranged on it in a zig-zag form. Fig. 1, and hot-pressed into the fabric so that the insulation interlocks with the strands of the fabric, Fig. 3. The completed fabric is primed with a nitrile base adhesive and when dry may be rolled and transported to the building site..  In use, the masonry is coated with liquid neoprene base adhesive and the heating fabric pressed on to it. The surface may be then painted or plastered.
Patent GB-1377760-A (GB)
Title: Method and apparatus for underwater arc welding
IPC: B23K9/00
Filed: 1971-12-07
Abstract: 1377760 Welding by fusion ANNA WELDING CORP 7 Dec 1971 18528/74 Divided out of 1377757 Heading B3R  The description is that of the parent Specification 1,377,757 but the claims are particularly directed to manual movability of the gun housing.
Patent GB-1363593-A (GB)
Title: Logic ciruit operation testing apparatus
IPC: G06K9/03
Filed: 1972-04-21
Abstract: 1363593 Character recognition systems INTERNATIONAL BUSINESS MACHINES CORP 21 April 1972 [14 May 1971] 18553/72 Heading G4R Apparatus for testing the operation of a selected one of a number of logic circuits, e.g. the recognition logic circuits of a character recognition system, includes means for applying a test signal, generated by scanning a printed document, to the selected logic and for comparing the output of the logic with a reference signal. A document bearing a pattern of test characters, e.g. sequences of symbols I and /, Fig. 2 (not shown), is scanned by a c.r.t. and photocell scanner. After compensation for variations in the c.r.t. brightness the photo-cell output is converted to binary form and stored. The stored data is read out to recognition logic via a consolidation circuit which outputs a number of bits which is less than that read from the store. In a test mode, in which the recognition logic circuits are tested, the store is read to a unit, Fig. 3 (not shown), which provides one bit for each symbol on the document, e.g. a 1-bit for a / and a 0-bit for a I. Successive groups of bits from this unit represent a reference signal, a selection signal, and a check signal. These signals pass to the consolidation circuit. The selection signal is used to select certain of the logic in the recognition logic, the selected logic then being fed with the check signal. The result-  ing output of the selected logic is compared with the reference signal. In the event of inequality a relevant portion of the test document is displayed to enable an operator to diagnose the fault. In a second test mode generally similar operations take place upon scanning a similar test document in order to test the operation of the consolidation circuit logics.
Patent GB-497158-A (GB)
Title: Improvements in or relating to reciprocating pumps
IPC: F04B53/00
Filed: 1937-07-05
Abstract: 497,158. Reciprocating pumps. GULLICK, Ltd., and SEAMAN, T. July 5, 1937, No. 18591. [Class 102 (i)] In a pump, which is especially applicable for supplying an hydraulic ram and for pumping foul water, the suction ports 22 open into an enlargement 23 of the barrel, communication of which with the working chamber is controlled by the plunger 12. The latter is packed by a cup-leather 21, and a leakage passage 25 is provided, in order to relieve the pressure while the cup-leather is entering the bore of the barrel. Discharge takes place through a valve 19. One or more barrels 11 may be supported in a wall of a suction chamber 10 by means of nuts screwed on to the ends 17 of the barrels. The plungers may be operated by levers 20 on a spindle 13, which is oscillated by means of a handlever 16.
Patent GB-593905-A (GB)
Title: Improvements in or relating to the manufacture of films and foils of cellulose acetate
IPC: B29C41/24
Filed: 1944-09-28
Abstract: Films and foils of cellulose acetate are obtained by casting a solution of the cellulose ester upon a supporting band, e.g., of paper or metal, which has been prepared by coating it in succession with at least one layer of cellulose acetate-cellulose nitrate composition and at least one perfecting layer of plasticized ethyl cellulose.  The band may be first coated with a dope containing cellulose acetate, tricresyl phosphate, dimethyl and diethyl phthalates triacetin, acetone, and titanium white.  A second layer of the same composition may be applied.  A layer of cellulose acetate-cellulose nitrate is then applied, plasticizers and solvent being included in the dope.  One or more coats of plasticized ethyl cellulose are then applied.  The composition may include tricresyl phosphate, methylated spirit, and benzene.  If the ethyl cellulose surface should become damaged and unsuitable for film-casting operations, it may be stripped from the undercoats, re-dissolved, and re-applied.  In the case of a copper band, this may first be matted by sanding or sandblasting, then coated with a pigmented cellulose nitrate layer, then with a thin coat of cellulose acetate-cellulose nitrate, and then with one or more coats of ethyl cellulose. Specification 428,663, [Group IV], is referred to.ALSO:Films and foils of cellulose acetate are obtained by casting a solution of the cellulose acetate upon a supporting band, the surface of which has been prepared by coating it in succession with at least one layer of cellulose acetate-cellulose nitrate composition and at least one perfecting layer of plasticised ethyl cellulose.  The supporting band may be a paper web or a metal band.  A paper web may be first coated with a layer of plasticised cellulose acetate.  The dope may comprise cellulose acetate, triphenyl phosphate, dimethyl phthalate, diethyl phthalate, triacetin, acetone and titanium white.  After the first thin coating has dried, a second layer of the same composition may be applied.  A layer of cellulose acetate-cellulose nitrate is then applied.  The cellulose nitrate employed may be celluloid film scrap. The composition may contain triphenyl phosphate, dimethyl and diethyl phthalate, triacetin and acetone, in addition to the cellulose esters.  One or more coats of plasticised ethyl cellulose are then applied.  The composition may contain castor oil or tricresyl phosphate, methylated spirit and benzene.  If the ethyl cellulose surface should become damaged and unsuitable for further film-casting operations, it may be stripped from the undercoats, re-dissolved and re-applied.  If a copper band is used, it may be first matted by sanding or sandblasting.  The matted surface may be coated with a pigmented cellulose nitrate layer, then with a thin coat of cellulose acetate-cellulose nitrate dope, and then with one or more coats of ethyl cellulose dope.  Specification 428,663 is referred to.