baber/WOPTO huggingface dataset:
Patent GB-839664-A (GB)
Title: Improved methanisation catalysts
Inventor: PINDER PHILIP CLIVE
IPC: B01J21/10
Filed: 1958-03-06
Abstract: A catalyst comprises 2-15% NiO, 0.5-7% MgO and 0.2-2% SO4 (preferred percentages being respectively 5-11, 1-3 and 0.3-0.5) supported on a carrier, e.g. chromium oxide, china clay, kieselguhr and particularly alumina, gamma-, beta-, omega- and especially eta-alumina being specified.  The catalyst may be prepared by impregnation of the box with dilute aqueous solutions of Ni and Mg salts or by coprecipitation from such solutions, e.g. with a carbonate; salts mentioned are nitrates, manganates, vanadates, formates, oxalates and acetates.ALSO:Methane is produced from carbon monoxide by means of a NiO-Mgo-SO4 catalyst on a support such as Al2O3 (see Group III).  The process is particularly applied to a hydroformer tail gas comprising H2, CO and C1-C5 hydrocarbons; thus, in an example the CO content of a tail gas was reduced from 0,5 to 0,01% by volume at 311 DEG  F. and the catalyst did not give rise to hydrocracking.
Patent GB-557963-A (GB)
Title: Improvements in sewing machines, particularly for the ready-made clothing industry
IPC: D05B3/18
Filed: 1942-05-30
Abstract: 557,963. Sewing-machines. CARLSON, A. F. May 30, 1942, No. 7358. Convention date, May 23, 1941. [Class 112] A sewing-machine for securing hooks or eyes to a ribbon a, Fig. 6, makes straight-line stitches c between the hooks and a group of lateral stitches c<SP>1</SP> over each arm of the hook shank. Each hook is placed individually in a small clip and thereafter the operations are automatic. The hook is removed from the clip and positioned and clamped on the work, the work clamp is fed for the straight stitches and held for the lateral stitches and is returned to its initial position after each cycle, a presser is lowered on to the work to hold it during the return movement of the clamp and the intermittent lateral vibration of the needle is imparted to it by a suitable cam.
Patent GB-1298767-A (GB)
Title: Circuit for controlling the speed of a direct-current motor
IPC: H02P7/29
Filed: 1970-02-16
Abstract: 1298767 Automatic speed control AGFAGEVAERT AG 16 Feb 1970 [15 Feb 1969] 7365/70 Heading G3R The speed of a D.C. motor is automatically stabilized by a differential amplifier which controls motor current in dependence on the difference between the voltage of a tachometer generator and an adjustable voltage derived from a compensated bridge circuit including resistors and a semiconductor. As shown, the output voltage of a tachometer generator G driven by a D.C. motor M is applied to one transistor 37 of a differential amplifier, a reference voltage, selected by a switch 31 and representing the desired speed of the motor, being applied to the other transistor 34. The output of the differential amplifier controls, through transistors 46, 47, a power transistor 48 in series with motor M so that any error in speed is corrected by variation of motor current. The reference voltage is obtained from an A.C. source 3 through a rectifier 4 and a bridge circuit 6-11 which includes resistances and Zener diodes arranged to reduce the effect of supply voltage variations. Negative temperature co-efficient resistors 40, 41, located near the Zener diodes and the generator respectively, compensate for the  effect that temperature variations of the latter components would otherwise have on motor speed. To limit motor current should the motor stall, the resulting voltage across a potentiometer 51, applied to a transistor 53, increases the current through a control resistor 39 until a thermally operated switch (not shown) operates to de-energize the whole circuit. (For Figure see next page)
Patent GB-251925-A (GB)
Title: Improvements in safety valves with pilot valve
IPC: F16K17/04
Filed: 1926-03-17
Abstract: 251,925. Soc. Anon. des Etablissements J. Cocard. Feb. 24, 1926, [Convention date]. Safety-valves. - A safety - valve of the kind controlled by an auxiliary valve has the auxiliary valve 8 provided with a separate actuating member 9 adapted normally to rest on a stop pin 18 screwed into the casing. In the event of an abnormal rise of pressure the member 9 is raised into contact with the valve 8 and raises it against the action of a spring 11. This allows pressure which has accumulated in the chamber 6 behind the main valve member to escape through port 12 and valve 8 and so allows the inlet pressure to open the main valve 4. Specification 236,530 is referred to.
Patent GB-745663-A (GB)
Title: Improvements in and relating to anemo-electric power plants
IPC: F03D11/02
Filed: 1953-03-17
Abstract: 745,663. Wind motors. DE HAVILLAND PROPELLERS, Ltd., and PERDUE, R. J. March 12, 1954. No. 7393/53. Class 110(3) A propeller suitable for a wind motor of the type in which the blades are hollow and are used to suck air through a turbine, has its blades mounted in a cradle for rotation about a pitch axis and each cradle is mounted in the propeller boss for movement about a coning axis, the co-operating surfaces between the blades, cradles, and propeller boss being substantially airtight to form an airtight passage between the interior of the blade and the interior of the propeller boss. The cradle comprises two curved end plates 1, 2 provided with part cylindrical outer surfaces 3, 4, flat side plates 7, 8, and flat rectangular outer and inner plates 5, 6. A cylinder 9, attached to the plates 5, 6, is provided with a flange member 10 having an outwardly facing surface 11. The surface 11 and the inner surface of the member 10 cooperate with the surfaces 26, 27 of a ring 24 forming part of a spider 25 attached to the root of the blades to allow rotation about the pitch axis. The cooperating surfaces may be machined to fine limits or sealing strips of rubber or other material may be provided to form an air seal. he cradle is attached to a stub axle 12 by means of stays 13 for pivoting about a coning axis 19-19'. The aperture in the propeller boss is bounded by two flat side plates 28, 29 and two end elements 30, 31 having surfaces 32, 33 which co-operate with the surfaces 3, 4 of the cradle. These co-operating surfaces may be machined to fine limits or provided with sealing strips to provide an air tight seal. A control member 18 is provided to vary the pitch of the blades which may be controlled by the axial thrust so that the axial thrust is maintained substantially constant as described in Specification 745,664.
Patent GB-931317-A (GB)
Title: Improved apparatus for threading perforated articles
IPC: G11C5/04
Filed: 1962-02-26
Abstract: 931,317. Magnetic storage apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. Feb. 26, 1962 [March 13, 1961], No. 7425/62. Class 40 (9). [Also in Group XXII] The threading of a wire back and forth through an array of toroidal storage cores is assisted by wrapping the wire about powerdriven capstans located on opposite sides of the array. As shown in Fig. 1, the storage cores 12 are supported by row and column wires X, Y which are attached to terminals 10 on a frame 11, the cores being grouped into four submatrices. The frame is carried by a jig 33 which has locating pins 36 arranged to engage any one of four groups of holes 45, 45<SP>1</SP>, 45<SP>11</SP>, 45<SP>111</SP> in a plate 40. Each of the four possible locations of the jig and frame, as determined by the groups of holes, positions a different one of the submatrices adjacent two sets of capstans 14 with one set at each end of the columns X. The arrangement is used to thread a sense wire through all the cores in a submatrix, and a length of wire sufficient to thread two submatrices is wound on a drum 15 with a stiff wire or needle 75, Fig. 8, welded to one wire end. To thread the sense wire Z with the jig and frame positioned as shown, the needle and wire is passed downwards through the right-hand column of the upper left-hand submatrix, around a capstan 14, upwards through the next column to the left, around the associated capstan 14 and so on, progress of the wire through the array being assisted by the capstans. When the left-hand submatrix is fully wired, the jig is first raised so as to move the threaded sense wire out of contact with the capstans, and is then moved to a new wiring position by sliding the jig with the locating pins 36 in engagement with grooves 46 until the pins fit into holes 45<SP>1</SP>. The capstans 14 are then aligned with the upper right-hand submatrix which is wired in the same manner, as previously described, after reversing the drum 15 in its spindle and welding the other wire end to a stiff wire or needle. The lower two submatrices are wired in similar manner, the jig being guided by grooves 46, 46<SP>11</SP>, 46<SP>111</SP> to holes 45<SP>11</SP>, 45<SP>111</SP> and so on, and a fresh length of wire being fitted to the drum. Details of the drum, its spindle and support, and of a gear-box arranged to impart unidirectional rotation to each row of capstans from a common motor drive are also described, Figs. 2 to 7 (not shown). Specification 852,543 is referred to.
Patent GB-554284-A (GB)
Title: Improvements in and relating to ship propulsion with inclined propeller shaft
IPC: B63H23/00
Filed: 1942-06-01
Abstract: 554,284. Propelling ships. SCHWEIZERISCHE LOKOMOTIV-UND MASCHINENFABRIK. June LOKOMOTIVUND MASCHINENFABRIK. June 1, 1942, No. 7426. Convention date, Feb. 24, 1941. [Class 114] A ship's propeller with an inclined shaft 3 is driven from a motor 1 having an axis which is horizontal, Fig. 2, or inclined at a slight angle B to the horizon. The drive passes through a reversing gear 2 and a coupling 5 comprising bevel gears 6, 7 with an equal number of teeth, and having pitch cones with markedly obtuse angles. In Fig. 3 a reduction gear 9, 10 is arranged between the gears 2, 5, and these gears are enclosed. In a further modification similar to Fig. 3 the gear 2 and gears 9, 10 are replaced by a gear comprising spur wheels 14, 15, Fig. 4, (not shown) for forward speed and further gears 16, 17, 18, Fig. 4 (not shown) for reverse speed. The coupling 5 may be placed between the motor 1 and gear 2.
Patent GB-1381479-A (GB)
Title: Moulds
IPC: B28B7/34
Filed: 1971-03-18
Abstract: 1381479 Porous moulds P J BATCHELOR E TWIGG and J R ALLRIGHT 24 Feb 1972 [18 March 1971] 7435/71 Heading B5A  A mould member, for pressing or casting ceramics, is made from a composition consisting of porous plaster mixed with a resin additive to enhance the wear resistance and has one or more passages within it whereby suction or pressurized air may be applied to act, on an article formed in the mould, through the porosity of the mould member. The composition may comprise a mixture of α and/or # semi-hydrate or gypsum with minor amounts of other inorganic materials and the additive is a modified melamine resin preferably with a small percentage of phenol or urea resin. A pore forming agent such as a methyl cellulose may be added and an accelerator, hardener and retarder may be added to the mixture. Examples of suitable mixtures are given. The mould members may be porous plaster die members 5, 6 of a pressing die with porous or perforated pipes 11 for pressure or suction and having spaces 12 to receive excess clay from the main cavity 9 when the press is closed. When moulding is completed the suction in the lower member may be replaced by pressurized air to assist release as the upper member is lifted, the suction in this member being maintained during lifting to raise the article with the mould member for subsequent release on to a support.
Patent GB-363569-A (GB)
Title: Improvements in or relating to the electro-deposition of platinum
IPC: C25D3/50
Filed: 1931-03-12
Abstract: 363,569. Electrodeposition of platinum. POWELL, A. R., SCOTT, A. W., and JOHNSON, MATTHEY, & CO., Ltd., 78, Hatton Garden, London. March 12, 1931, No. 7600. [Class 41.] Bright platings are obtained by use of a bath containing an alkali-metal platinate, a conducting salt, a stabilizing salt and an alkali-metal hydroxide in amount equivalent to less than 2À5 per cent of free sodium hydroxide. An alkalinity equivalent to 0À2-1À0 per cent free sodium hydroxide is preferable. Salts of oxalic, phosphoric and nitrous acids may be used as stabilizers. The bath should be operated above 40 C. and preferably at 65-85 C. The bath is regenerated by addition of an alkaline solution of hydrated platinic oxide. An acid, preferably sulphuric acid, is added occasionally to prevent the alkalinity from rising beyond the prescribed limits. In an example, 100 oz. of sodium chloroplatinate are dissolved in 6 gallons of hot water and solid sodium hydroxide is added to the hot solution, cold water being added to prevent excessive boiling. The solution is diluted with 12 gallons of hot water and boiled until the colour changes from orange to pale yellow. 16 oz. of oxalic acid and 37 oz. of sulphuric acid are added successively and the solution diluted to 24 gallons. It then contains 1 per cent of platinum and 0À5 per cent of free sodium hydroxide. The bath may also be prepared by dissolving precipitated hydrated platinic oxide in sodium hydroxide solution with adjustment of the alkalinity and addition of a stabilizing salt such as sodium oxalate, and a conducting salt such as sodium sulphate. Any other compound of tetravalent platinum not containing cyanide groups may be used as starting material. A current density of 40 amps per sq. ft. at 1À5 volts may be employed. Deposits may be made on polished gold, silver, copper, brass, bronze, and nickel-silver surfaces; nickel, iron, or steel should be first coated with copper or silver or both from an alkali metal cyanide bath.
Patent GB-1487011-A (GB)
Title: Preparation of mixtures of magnetite with metals and/or oxides
IPC: C01G49/08
Filed: 1975-02-24
Abstract: 1487011 Magnetite compositions MONTEDISON SpA 24 Feb 1975 [25 Feb 1974] 7636/75 Heading ClA A mixture of magnetite with one or more of metallic nickel, cobalt, copper and/or molybdenum oxide is prepared by (1) treating an aqueous ferrous salt solution containing one or more of the cations Ni(II), Co(II), Cu(II) and Mo(VI) with alkali to pH 8À8 to 9À4 to precipitate ferrous hydroxide, (2) heating the resulting slurry in an autoclave to 150-200‹ C. and maintaining the temperature in this range until the hydrogen pressure developed stabilizes, and (3) separating the precipitate from the slurry.
Patent GB-1035992-A (GB)
Title: Improvements in or relating to stay anchors
IPC: E02D5/80
Filed: 1963-02-26
Abstract: 1,035,992. Ground anchors. M. GENMA. Feb. 26, 1963, No. 7653/63. Heading E1B. The end of a stay rope 9 is attached to an arm 5 pivoted at 6 between ribs 2, 3 on an arcuate anchor plate 1. The anchor is driven into the ground by striking the arm 5 when in its position A. The pointed nose of the plate 1 is reinforced by a third rib shaped to about the curved inner end of the arm 5.
Patent GB-216966-A (GB)
Title: Improvements in and relating to folding boxes or cartons
IPC: B65D5/36
Filed: 1923-03-16
Abstract: 216,966. Hunt, R. March 16, 1923. Folding boxes.-The sides b of a box formed from a single blank are provided with end flanges c adapted to be secured to the ends e in such a manner that the sides and ends can be collapsed inwardly on to the bottom a of the box. The flanges c which are creased diagonally have their outer portions 2 permanently secured by adhesive to the outside of the ends e as shown in Fig. 2. Specification 4304/98 is referred to.
Patent GB-1015349-A (GB)
Title: Improvements in or relating to tobacco compositions
Inventor: RICHARDS GEOFFREY NORMAN
IPC: A24B15/30
Filed: 1964-02-25
Abstract: 1,015,349. Treating tobacco. AMERICAN MACHINE & FOUNDRY CO. Nov. 25, 1964 [Feb. 25, 1964], No. 7770/64. Addition to 990,919. Heading A2C. In the process claimed in the parent Specification the acid used is a carboxylic acid. Suitable acids include acetic acid, propionic acid, butyric acid, isobutyric acid, valeric acid, isovaleric acid, palmitic acid, benzoic acid, phthalic acid, toluic acid, phenylacetic acid tartaric acid, citric acid, succinic acid, malonic acid, and malic acid.
Patent GB-1261383-A (GB)
Title: An improved door closer device
IPC: E05F3/10
Filed: 1969-02-01
Abstract: 1,261,383. Door closer device with fluid check rod. DOR-O-MATIC (G.B.) Ltd. 13 Feb., 1969 [1 Feb., 1968], No. 7811/69. Divided out of 1,253,968. Heading E2M. [Also in Division F2] A door closer device of the type comprising a piston 12 longitudinally slidable in a cylindrical bore 14 in a casing 10, wherein the piston is displaced axially against the force of springs 28 when the door is opened, is characterised in that a first axially extending rod 62, projecting from a first end plug 18 which closes one end of the bore, extends through a hole 32 in the adjacent end of the piston and is shaped to allow the flow of hydraulic fluid through the piston to provide a predetermined resistance during the closing movement, and a second axially extending rod 34, projecting from a second end plug 16 at the other end of the bore, extends through a hole 30 in the opposite end of the piston to provide a resistance to door opening. The first rod 62 may be parallel and a non-fluidtight fit in the hole 32 or flattened or tapered or having stepped diameters to provide a varying resistance to closing, and is also provided with a short axially extending flat 68 which allows an increased flow of fluid through the piston when the door is nearly closed, thereby causing an accelerated latching of the door. The flat 68 may co-operate with a further hole 70 in the piston, so that the rod 62 may be rotated to vary the final closing speed. The piston 12 has a toothed axially extending slot 26 engaging with a spur pinion 22 on a shaft 20 which is connected by levers to the door frame. The second rod 34 may have a tapered flat 38 to provide an increasing resistance to door opening. (For Figure see next page)
Patent GB-403356-A (GB)
Title: Improvements in and relating to methods of and apparatus for electrical distribution
IPC: H02J3/18
Filed: 1932-03-16
Abstract: 403,356. Distribution network arrangements. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Blake, D. K. ; 314, 5th Street, Scotia, New York, U.S.A.) March 16, 1932, No. 7843. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 17, 1932]. Drawings to Specification. [Class 38 (iv).] In an A.C. distribution system, high-tension lines supply current to substations which are interconnected to supply areas sub-divided into rectangles and have a low voltage network connected thereto. The substations comprise, a transformer, tap-changing voltage regulator and circuit breaker arranged along an axis parallel to the direction of current flow. When the load development in a portion of the system renders the substation supplying it too small, the substation is moved further out from the concentrated area which is then supplied direct from the H.T. line through a larger size transformer than that in the substation. The substations are built to a standard pattern and can be removed from one site to another. They are located in chambers below street level.
Patent GB-231489-A (GB)
Title: Improvements in lacing for elastic belts or corsets or the like
IPC: A41F1/04
Filed: 1925-03-24
Abstract: 231,489. Boudo, A. March 29, 1924, [Convention date]. Corsets and abdominal belts are provided with side lacing b, c which commences at a position half way up the corset and terminates in one case b' at the bottom of the garment and in the other case c<1> at the top of the garment. Corsets are applied in the usual manner and then laced at the sides.
Patent GB-1046528-A (GB)
Title: Improvements in or relating to steering gear arrangements in tractors
Inventor: BLUMENTHAL REINHARD
IPC: B62D1/16
Filed: 1964-02-26
Abstract: 1,046,528. Tractors. VEB TRAKTORENWERK SCHONEBECK. Feb. 26, 1964, No. 7957/64. Heading B7H. In a tractor with a U-shaped frame 17 a steering box 5, with an upwardly or downwardly extending rocker shaft 7 perpendicular to the steering box input shaft axis 6, is arranged with the axis 6 extending between the planes defined by the upper and lower limits of the chassis frame. In Fig. 2, a central steering wheel is connected to the steering box by articulated shaft 14 and rocker-arm 8 is connected by tie-rods 9 to both front wheels or by a single tie-rod 9 to one wheel which is connected to the other front wheel by a track rod 12. The axis 6 may be arranged parallel to, perpendiculart to or obliquely of the vehicle longitudinal axis.
Patent GB-481050-A (GB)
Title: New or improved means for folding monoplane wings
IPC: B64C3/56
Filed: 1937-03-18
Abstract: 481,050. Folding monoplane wings. SHORT BROS. (ROCHESTER & BEDFORD), Ltd., and McVIE, R. March 18, 1937, No. 7961. [Class 4] A monoplane wing comprises a main part c, Figs. 2, 3, hinged to a stub wing of which the trailing part b<1> is foldable forwardly to permit the part c to fold back about a substantially vertical axis, the hinge connection between the parts b, c being such that .the part c may thereafter be rotated about a substantially fore and aft axis to the position shown in Fig. 5 when it may, if desired, be secured by a jury strut to the fuselage. Wing c is mounted on a turntable d, Fig. 8, which is mounted by antifriction rollers d<2>, d<3> in a circular track mounted in fixed stub wing part b. Brackets d<4> , Figs. 3 and 8, extend at an angle from the rotary portion and carry bosses d<5> for hinge pins received in lugs c<2> formed on brackets c<1> extending rearwardly and inwardly from the rear spar of wing c. The hinge pins are near to the upper and lower surfaces of wing c and their axes are in line with the line of separation between wing and stub wing. When wing c has been swung into the position of Fig. 3 a sleeve extension c<3>, Fig. 11, on the trailing part of the wing engages between bolt housings e<3> on a bracket e, Fig. 8, and is secured therein by spring-pressed bolts el, e<2> which engage in slots c<4> formed in the sleeve. The wing c is thus secured to the turntable at three spaced points. Sleeve c<3> may be released by actuation of a cam expander shaft by handle c<6>. Rotation of wing c to the position of Fig. 5 is effected by gear means driving on to the turntable and including a worm shaft rotatable by handle d<6>, Fig. 5. The axes of the pivots or the mounting of the turntable in stub wing b may be such that when fully folded the wing tips are close against the after part of the fuselage. The wing locking means comprise apertured lugs c<7>, c<8>, Fig. 6, on front and rear spars which engage between pairs of similar lugs b<3>, b<4> fixed to the stub wing spars. Axially movable bolts f, f<1> are mounted as rams in hydraulic cylinders f<2>, f<3> and are outwardly urged to pass through the lugs by operation of a hand pump f<4>. The ends of the bolts may be made to show on the surfaces of the wing when they are home or may operate indicating means. Inspection openings f<6>, g are provided. According to a modification, bolts f, f<1>, may be operated by racks or by screw and nut gear.