baber/WOPTO huggingface dataset:
Patent GB-786556-A (GB)
Title: Improvements in or relating to moulds
Inventor: HENDERSON GABRIEL JOHN
IPC: B28B7/02
Filed: 1953-07-07
Abstract: 786,556. Moulds for gypsum wall-panels &c. PETRADENE, Ltd. July 7, 1953, No. 18875/53. Class 87(2). A mould for wall panels comprises side members 1 and 2 resting on a base plate and having inclined abutment surfaces 4, 7, to make them self-aligning on assembly. The members are held rigidly together by means of tie-bolts 10 carried by bolts 8 screwing into bosses 9 on the uprights 1<SP>11</SP> of plates 1, the other end of the tie-bolts 10 resting in U-shaped recesses in lugs 11 on members 2 and having wing nuts 13 which draw the members rigidly together when tightened, warping being prevented by bearer plates 15. In making plaster panels as in Specification 786,555 a plaster slurry is poured into the assembled mould and a corrugated asbestos sheet is supported on the pins 23 which slide in T-pieces 20 supported in bores 19 in studs 18. When the slurry has set, the panel is withdrawn, the T-pieces are moved to the other studs 18, a plaster slurry is introduced into the re-assembled mould and the inverted panel is re-introduced to cast thereon the other surface. The studs 18 may be replaced by bolts located in elongated apertures in the plate 17 whereby they may be adjusted along the length of members 2.
Patent GB-217457-A (GB)
Title: Improvements in mounting guide blades for elastic fluid turbines
IPC: F01D9/02
Filed: 1923-07-23
Abstract: 217,457. Baumann, K., and Metropolitan-Vickers Electrical Co., Ltd. July 23, 1923. Blades.-In order to reduce leakage past the diaphragms of a turbine, the outer ends of the guide-blocks 3 straddle a. ring or strip 10 and are secured in a groove 7 in the casing, while the inner ends straddle a flange 4 on the diaphragm 2. The blades are secured by one or more rows of rivets at each end, or the outer ends may be secured by centring pegs with or without riveting.
Patent GB-1245552-A (GB)
Title: Rc-pulse oscillator
IPC: H03K3/03
Filed: 1970-04-21
Abstract: 1,245,552. Integrated circuit oscillators. ITT INDUSTRIES Inc. 21 April, 1970 [25 April, 1969], No. 18975/70. Heading H3T. A monolithic integrated oscillator circuit comprises a capacitor C which is charged through a circuit LS and discharged through a circuit ES when a switch S is closed, the switch being controlled by a threshold circuit SWS to close at an upper and open at a lower threshold voltage on the capacitor, the output being taken either from point A as a delta waveform or from the circuit SWS as a rectangular one. The output is amplified by an unspecified circuit AS. The charge and discharge circuits comprise transistors of complementary type and constitute constant current circuits which are adjustable by inputs E LS , E ES  to vary the duty factor and frequency of the output. It may be arranged to vary E LS  and E ES  together in a manner to vary the frequency only. The threshold circuit includes a potentiometer, across one half of which is connected a further resistor controlled by a transistor which is switched with the switch S. This produces the differential between upper and lower threshold values, and can be adjusted by an input E sws - In an alternative arrangement a resistor R is connected to the capacitor and the switch S is replaced by a change-over switch between LS and LE.
Patent GB-1284030-A (GB)
Title: Cutting tool materials
IPC: C23C16/06
Filed: 1970-04-21
Abstract: 1284030 Coated cutting tools LABORATOIRE SUISSE DE RECHERCHES HORLOGERES 21 April 1970 [2 June 1969] 18998/70 Heading C7F A bonded material suitable for use as a cutting tool comprises a substrate and at least two coating layers chemically deposited on the substrate, the top layer being a carbide of one of the transition metals of Groups 4 to 6 of the Periodic Table or alumina, and the or each intermediate layer having the following characteristics (a) its hardness is between the hardness of the substrate and that of the top layer, (b) it is more ductile than the top layer (c) its co-efficient of thermal expansion is between those of the substrate and top layer and (d) it is partly diffused in both the lower and upper adjacent substance. Coating is by a halide diffusion process or from gaseous compounds, and the following examples are given (1) ledeburitic chromium steel coated with Cr which is coated with TiC (2) WC, TiC, NbC or VC with a Co binder coated with Cr/Cr carbide which is coated with TiC (3) 80% Ni 20% Cr coated with Ni 3 Al coated with NiAl coated with Al 2 O 3  (4) 20 Cr 15 W 51Co 10 Ni 1À4 Mn 1À7 Fe coated with Cr carbides coated with ZrC (5) Cr-Mo-C steel with 33% TiC coated with Mo coated with MoC coated with B 4 C and (6) Al 2  O 3  + Ni binder coated with Cr coated with TiC.
Patent GB-1512706-A (GB)
Title: Endoscopic devices
IPC: A61B18/20
Filed: 1975-05-06
Abstract: 1512706 Endoscopic surgical laser device CAVITRON CORP 6 May 1975 [23 May 1974] 19048/75 Heading A5R An endoscopic surgical laser device comprises an infra-red CO 2  laser 10 producing a continuous beam 20 directed from an articulated arm 11 through an endoscope 16 to impinge on tissue 30, the tissue 30 being contemporaneously observed through an eyepiece 13 of an endoscope attachment 12 with the necessary visible light being generated by lamps 26', transmitted through optical fibres (40) Fig. 2, (not shown) towards the tissue and reflected back through the hollow tube of the endoscope. The endoscope tube includes a pellicle barrier 32 extending thereacross and made of polyethylene and acetate, the pellicle preventing fluids from the tissue 30 reaching the optical parts of the device and being cooled by an air blower 17.
Patent GB-121007-A (GB)
Title: The Combination B & A Shank for Cornets.
Inventor: PRICE EDWARD
IPC: G10D9/04
Filed: 1917-12-24
Abstract: 121,007. Price, E., Sprason, W., Edge, F., Barratt, H. and Lemon, F., (trading as Peerless Co.). Dec. 24, 1917. Cornets. - A sliding- shank attachment for transposition or obtaining an extra note is shown in its extended position. The attachment is in four parts, namely, a thimble-tube e with knobs, a tube d covering a slot in a tube c, and a tube a with Knobs h and a pin b working in the slot, which has a transverse extension at the front end.
Patent GB-458985-A (GB)
Title: Improvements in and relating to aircraft having detachable cantilever wings
IPC: B64C1/26
Filed: 1935-07-03
Abstract: 458,985. Aircraft with cantilever wings. BAYNES, L. E., 144, Cromwell Road, South Kensington, London. July 3, 1935, No. 19068. [Class 4] An aircraft having detachable cantilever wings comprises a fixed neck structure upstanding from the fuselage and means for attaching the wing roots separately to opposite sides of the said neck structure. As applied to a sailplane, a tubular fuselage 1, Fig. 1, comprises bulkheads 2, 3 spaced apart by a distance equal to that between front spar 4 and rear spar 5 of wings 6, Fig. 2. The bulkheads project above the general level of the fuselage top and are reduced in width to constitute the framework of the neck structure secured to front and rear faces of bulkhead 2 are metal plates 7, 8, respectively each provided with four projecting lugs apertured for spar attachment pins or bolts 9. Main spar 4 is provided with projecting drilled lugs carried by or forming part of metal plates or brackets 10 and adapted to register with those of the bulkhead plates. The attachment of rear spar 5 is similar but comprises only one pair of drilled lugs on each side. The neck structure is completed by a roof 11 of the same profile as the wing roots, but extended rearwardly beyond the wing trailing edge by a hinged extension reaching to the fuselage surface and forwardly by a nose 13 forming a flush junction piece between the leading edges of the wings but hinged as shown to permit access to the wing roots and the pilot's cockpit. The rear roof extension may co-operate with side panels 12 to form a housing for a retractable engine as described in Specification 432,301. Aileron controls include a torsion shaft 19 communicating movement to a rocking lever 15 pivotally secured to bulkhead 13. The ends of lever 15 carry pins 23, Fig. 2, each adapted to engage in slots 24 formed in one arm 22 of a pivoted lever 20 mounted on rear spar 5 and connected to the ailerons by wires 21. A small gap 25, Fig. 1, may be left between each wing root and the adjacent side panel of the neck structure to facilitate access to the root joints ; this may be closed in flight by a detachable fillet.
Patent GB-1100353-A (GB)
Title: Improvements in or relating to weapons
IPC: F41A17/64
Filed: 1966-05-02
Abstract: 1,100,353. Cocking devices. ZAVODY JANA SVERMY NARODNI PODNIK. 2 May, 1966 [3 May, 1965], No. 19127/66. Heading F3C. A cooking device for a gas operated weapon comprises a pin 9 passing through the lateral well 10 of the weapon, a handle 11 fixed to one end of the pin 9 and a cooking lever 8 fixed to the other end. The cocking lever 8 has a rounded end which co-operates with a surface 27 on a spring-loaded plunger 7 to retract the plunger on rotation of the handle 11. The handle 11 is provided at its outer end with a spring-loaded catch which engages with a recess in the wall of the weapon in the plunger retract - ing position of the handle in which position the cocking device acts as a safety catch, and in the inoperative position of the handle (Fig. 3, not shown). The firing mechanism consists of a pivoted trigger which co-operates with a trigger lever, the trigger lever having a pawl for holding the plunger 7 against its spring loading (Fig. 1, not shown).
Patent GB-187033-A (GB)
Title: Improvements in jacks and stands for vehicles
IPC: B62H1/00
Filed: 1921-07-15
Abstract: 187,033. Fell, S. V., and P. V. Motor Cycles, Ltd. July 15, 1921. Stands or supports for vehicles.-Means for jacking up and supporting the wheels of motor cycles, cars, &c. comprise pivoted triangular frames adapted to support the wheel in either of the positions shown in Figs. 2 and 3, suitable stops being provided for limiting the forward movement of the frames. The legs of the frames may be arranged to constitute the mudguard stays when in their inoperative position and may be provided with rollers. Foot-pressure is employed at e in bringing the device into use.
Patent GB-1536110-A (GB)
Title: Pouch usable as a cup and a method of producing the same
IPC: B65D3/02
Filed: 1977-05-06
Abstract: 1536110 Cups KKIMURA 6 May 1977 [13 May 1976] 19181/77 Heading A4A [Also in Division B8] A pouch which may be supplied containing powdered fruit juice or coffee and then opened at a cutting line 8 and used as a cup comprises opposed outer sheets 1 of rigid paper which are joined together at their side edges but which are separable at their bottom edge, the pouch being lined with a flexible inner polyethylene sheet (6) which extends across the otherwise open bottom of the pouch when it is opened out. As in Figures 1-3 (not shown), each pouch is cut (along a line 7) from a laminated strip of the inner and outer sheets and then folded about its centre, slits (2,3,4) providing the open bottom edge and the cutting line for the completed pouch. An elliptical area (5) to be at the bottom of the pouch is coated with silicon so that when the pouch is opened out into a cup, the inner sheet separates from the outer sheet in this area to provide the cup base. In an alternative Figure 6 (not shown), the outer sheet is cut away in an elliptical area (instead of the slit 2) and the silicon is omitted.
Patent GB-1044798-A (GB)
Title: Improvements relating to measuring apparatus
Inventor: KERR ANDREW GUY
IPC: G01B11/00
Filed: 1964-05-08
Abstract: 1,044,798. Selective signalling. FERRANTI Ltd. May 6, 1965 [May 8, 1964], No. 19189/64. Heading G4H. [Also in Division G1] In apparatus for measuring a workpiece using fringes produced by almost parallel gratings, a feeler which engages the workpiece is resiliently mounted and movements of the feeler from its datum position relative to the carriage due to contact with the workpiece cause corresponding movements of one of the gratings so that the system output is not effected by the feeler movements. For working in two dimensions, the feeler 25 is resiliently mounted in a diaphragm or ball-and-socket type support on a first carriage C<1> which moves in a direction D<1> on the carriage C which itself moves in a direction D. The feeler is moved into contact with the workpiece and its position is measured by grating systems 10, 10<1> of the type described in Specification 914,438. Deflections of feeler 25 due to contact with the workpiece are detected by pick-ups 24, 24<1> and used correspondingly to shift gratings T and T<1> relative to the carriages C and C<1>. The pick-ups may be inductive stators with an extension of the feeler acting as armature. The stator windings are connected in a phasesensitive bridge circuit, unbalance of which drives electromagnetic or piezo-electric actuators 34, 34<1>. This control arrangement may be replaced by a synchro transmitter and receiver. For measuring in one dimension only the carriage C alone suffices, Figs. 1 and 2 (not shown).
Patent GB-364042-A (GB)
Title: Improvements in methods of producing benzanthrone
IPC: C09B3/04
Filed: 1930-06-24
Abstract: Benzanthrone is obtained by reducing anthraquinone with iron, copper, or aluminium, and substantially simultaneously condensing the product with glycerine in a sulphuric acid medium between 110-120 DEG  C. According to an example, anthraquinone is reduced with iron dust in sulphuric acid, glycerine being added simultaneously and condensation taking place, the momentarily-formed intermediate products being hydroxyanthrone and anthraquinol.
Patent GB-1185092-A (GB)
Title: Process for Preparing Methylenebisimino Diacetonitrile
IPC: C07C255/25
Filed: 1967-04-26
Abstract: 1,185,092. Preparation of methylene bisimino diacetonitrile. COWLES CHEMICAL CO. 26 April, 1967 [26 April, 1966; 14 April, 1967], No. 19256/67. Heading C2C. Methylene bis-imino diacetonitrile is prepared by adding hydrogen cyanide to a liquid phase adduct of ammonia and formaldehyde while maintaining the pH of the said liquid phase at a strong acid value, preferably #1. The process may be conducted stepwise, adding ammonia and liquid HCN to the acidified adduct in two stages, the temperature of the reaction mixture at each stage being approximately 30‹ C. and 65‹ C. respectively (HCN alone may be used for the second stage) and if the stoichiometric amount of formaldehyde has not been used for the formation of the adduct, further quantities of formaldehyde may be added during one of the NH 3 -HCN or HCN addition stages.
Patent GB-498879-A (GB)
Title: Manufacture of water-soluble azo-dyestuffs
IPC: C09B29/00
Filed: 1937-07-12
Abstract: Water-soluble azo dyes are manufactured by combining with any coupling component a diazo compound from an amine of the general formula <FORM:0498879/IV/1> where X and Y are hydrogen or the same or different aliphatic, aromatic or aliphatic-aromatic radicles.  Some of the products may be transformed into colour lakes.  Examples describe the production of the following dyestuffs: (1) 1-aminobenzene-3-sulphodimethylamide-6-sulphonic acid --> 1-(21-chlorophenyl)-3-methyl-5-pyrazolone; the product yields yellow printing lakes; (2) the same diazo component --> 1-(21-chloro-61-methyl-41-sulphophenyl) -3-methyl-5-pyrazolone; the product dyes wool greenish-yellow shades; the diazo component may be replaced by the corresponding diethylamide or anilide; (3) 1-aminobenzene-3-sulphodiethylamide-6-sulphonic acid --> 1-(21-chloro-61-methylphenyl)-3-methyl-5-pyrazolone; the product dyes wool yellow shades; the coupling component may be replaced by 1-phenyl-3-methyl-5-pyrazolone, 1-phenyl-5-pyrazolone-3-carboxylic acid ethyl ester or 1-(41-sulphophenyl)-5-pyrazolone-3-carboxylic acid, and the diazo component by the corresponding sulphonamide, diphenylamide, benzylamide, methylamide, 41-chloranilide, 41-methylanilide or 21-methoxyanilide; (4) 1-aminobenzene-3-sulphodimethylamide-6-sulphonic acid --> 2-acetylamino-5-naphthol-7-sulphonic acid; the product dyes wool orange shades; the coupling component may be replaced by benzoyl-2 : 5 : 7-acid; (5) the same diazo component --> 2-aminonaphthalene-7-sulphonic acid (yellowish-red shades); (6) the same diazo component --> 2-amino-8-naphthol-6-sulphonic acid (red shades); the diazo component may be replaced by the corresponding N-methylanilide; the coupling components of (4) to (6) may be replaced by 1-acetylamino-8-naphthol-4-sulphonic acid or 1-benzenesulphamino-8-naphthol-3 : 6-disulphonic acid. Specifications 12205/09, 933/10, 17105/10, and 319,585, [all in Class 2 (iii)], are referred to.  Amines of the general formula given above are obtainable by reacting the corresponding 1-chloro-2-nitrobenzene-4-sulphonamides with sodium sulphite and reducing the nitro group.
Patent GB-980181-A (GB)
Title: Improved hinge and fastening means
IPC: E05D11/10
Filed: 1961-05-29
Abstract: 980,181. Hinges; catch fastenings. J. H. DELHASE. May 29, 1961 [June 3, 1960], No. 19344/61. Headings E2A and E2F. A hinge comprises pivotally interconnected brackets 12, 14, Fig. 1, a projecting means consisting of a cylindrical member 28 rotatably mounted on one of the brackets, and a receiving means on the other bracket having a projecting leading edge 22 and a recess 20 adapted to receive the member 28 to hold the brackets releasably in a predetermined relative angular position, one of the projecting or receiving means being made of resilient material and the edge 22 being located in the path of the member 28 so that the resilient material is compressed as the member enters or leaves the recess. In a modification (Fig. 3, not shown) the receiving means consists of a number of recesses formed in an enlarged portion of the bracket 12 disposed around the pivotal connection with the bracket 14, so that the cylindrical member 28 can hold the brackets in various relative angular positions. In Fig. 4 the projecting means comprises a pair of rotatably mounted resilient ball-like members 52 adapted to snap over the enlarged end 50 of a knob 48 having recesses to receive the members. If desired the members 52 may be rigid and the knob 48 resilient. The resilient material may be rubber or plastics.
Patent GB-890605-A (GB)
Title: Preparation of fluorocarbons
Inventor: OLSTOWSKI FRANCISZEK
IPC: C25B3/28
Filed: 1960-06-01
Abstract: 890,605. Fluorocarbon compounds prepared by fusion electrolysis. DOW CHEMICAL CO. June 1, 1960, No. 19354/60. Class 41. Hexafluoro-ethane and higher homologues are prepared by electrolysis of a fused fluoride of an alkali, alkaline earth, or earth metal at a temperature above 600 C., using a porous carbon anode made by sintering a mixture of fine carbon particles and a binder for example petroleum, coke, graphite, carbon black, and coal tar or petroleum pitch or a synthetic resin. Fluorides of alkali metals excluding potassium, or of Ba, Si, Ci, Al, Y, Sc, La are specified and mixtures thereof, e.g. NaF/LiF, MgF2/ CaF2/LiF, and AlF3/LiF. The carbon anode is preferably of permeability 4 to 20, defined in terms of the quantity of air passing through a block of carbon under specified standardised conditions, and prevents the formation of a gas envelope around the anode. A cell consists of a metal tank 1 lined with an insulating material 3 to hold a molten mixture of AlF3/LiF at 900 C. The cathode 15 is molten aluminium or lead, and the anode comprises a cylindrical hollow graphite holder 6 ending in a porous carbon cup 8. Electrolysis is effected at 4.6 to 5.5 v. and the gases produced and drawn off through a pipe 9 contain C2F6 and smaller amounts of CF4. Details are given showing the effect of voltage and temperature and different mixtures of fluorides on the nature of fluorocarbons produced and proportions of these constituents.
Patent GB-516295-A (GB)
Title: Improvements in and relating to the precipitation of zein
IPC: C08L89/00
Filed: 1938-06-29
Abstract: 516,295. Zein. CORN PRODUCTS REFINING CO. June 29, 1938, No. 19357. Convention date, Aug. 18, 1937. [Classes 2 (ii) and 2 (iii)] Zein is precipitated from a solution by introducing the solution as a fine stream into a body of liquid serving to take up the solvent in the zein solution, whereby the zein is deposited in filamentary form. The zein is preferably dissolved in alcohol, and the precipitating liquid is preferably water, which may contain'some alcohol. In the, apparatus shown, the zein solution is introduced, under pressure, into the inner member 1 'of a nozzle A, the aqueous precipitating medium being forced through the outer member 2 of the nozzle'. The forward end of the nozzle is enclosed in a conduit 5, from which the liquid with the precipitated zein is carried by a pipe 6 to a flotation tank B provided at opposite ends with weirs 8, 9. A chain drag 10 carries the zein filaments, which float on the surface of the liquid, into a mixing box 11, from which the zein passes by an apron 14 to the receiving vessel 15 of a vacuum filter C of the string and drum type, the strings 16 of which deliver the dewatered zein to a conduit 17 leading to a spray drier D. Fresh water enters the system at 29 and is used for washing the zein on the filter C. The filtrate and wash water from the filter pass to a receiver E connected by a pipe 19 with the vacuum pump for operating the filter. From receiver E the filtrate is forced, by a pump 21, in part through a pipe 24 to a cooler F and thence to conduit 5, in part through pipe 13 to the mixing box 11, and in part through pipe 22 to the outer member 2 of the nozzle. Water is withdrawn from the flotation tank B and introduced into pipe 24 by a pump 26. A quantity of water and alcohol mixture corresponding to the amount of 'fresh water introduced at 29 is withdrawn from the system by pipe 28, and treated for the recovery of the alcohol. Compressed air is introduced into the induction pipe 23 of the outer member 2 of nozzle A through a branch pipe 30 ; the purpose of this is to aerate the precipitated zein and to ensure its flotation.