baber/WOPTO huggingface dataset:
Patent GB-805763-A (GB)
Title: Improvements in or relating to cotton bale tie means
IPC: B65D63/08
Filed: 1956-02-28
Abstract: 805,763. Buckles. DONIALDSON, H. M., and HEBERN, W. D. Feb. 28, 1956, No. 6139/56. Class 43 A cotton bale tie comprises a flat metal buckle 10 having an elongated rectangular slot 16 parallel with its ends 12 and 14 and in substantially closer relation to one of said ends, e.g. end 12, than to the other and, in association with the buckle, a metal strap 22 which is put around the bale 26 while the latter is held in a press (not shown) one end 24 of the strap being secured by passing it over the portion of the buckle from the end 14 more distant from the slot 16, inserting it through the slot and bending the strap reversely beneath itself, Fig. 4, the free other end 30 of the strap then being inserted through the slot by a straight forward threading action into underlying relation with the end portion 24 of the strap. In attaching the bale tie the strap is tensioned by rocking the buckle outwardly and downwardly, as shown in Fig. 4, with the lower edge 28 of the end 12 serving as a fulcrum on the bale 26. With the tie attached, the compression on the bale is released and the buckle snaps downwardly upon the surface of the bale.
Patent GB-1260590-A (GB)
Title: Improvements relating to the manufacture of silicon semiconductor devices
Inventor: GUMM BRIAN JAMES
IPC: H01L29/00
Filed: 1969-02-05
Abstract: 1,260,590. Semi-conductor diodes. INTERNATIONAL RECTIFIER CO. (GREAT BRITAIN) Ltd. 5 May, 1970 [5 Feb., 1969], No. 6174/69. Heading H1K. In manufacture of a semi-conductor Zener or avalanche diode incorporating a silicon wafer, the wafer is preheated at controlled temperature for several minutes to stabilize its resistivity and thereafter alloyed or diffused at an elevated temperature to form a rectifying junction; the preheat temperature substantially exceeding the maximum subsequent process temperature. Silicon slices are etched in HF + HNO 3  mixture dried, and preheated for 1 hour at 900‹ C. They are slowly cooled to 500‹ C. at 70‹ C. per minute, diced, and etched in HF to remove oxide. An aluminum wire is alloyed to the chip to form a rectifier junction and a metal base is lead tin soldered thereto at 600-700‹ C. in inert or reducing atmosphere the rectifier then being etched in HF + HNO 3  mix, washed, dried, silicone varnished, oven-cured and encapsulated by welding a glass/metal seal to the base and crimping in the connecting wire. Alternatively, silicon slices are preheated in air to 1270‹ C., cooled at 70‹ C./min. to 500‹ C., etched in HF to remove oxide, and coated on one side with boron paint and on the other with phosphorus paint. The slices are stacked with like dopants in contact and diffusion heated for 24 hours at 1250‹ C.; after which the slices are cleaned, Ni and Au plated, and diced; the dice being soldered to bases and connecting wires, etched in HF+HNO 3  mix, washed, dried, varnished, cured, and encapsulated by welding a glass to metal seal to the base.
Patent GB-892880-A (GB)
Title: Purification of alkali metal hydroxide solutions
Inventor: CARLSON GORDON ANDREW
IPC: C01D1/34
Filed: 1959-02-24
Abstract: <PICT:0892880/III/1> Purified alkali metal hydroxide is produced from an aqueous solution containing chlorate by extracting with liquid or aqueous ammonia to produce a purified aqueous alkali metal hydroxide phase and an ammonia phase containing alkali metal hydroxide and chlorate, and, after adding alkali metal hydroxide to the ammonia phase, subjecting this phase to further extraction with liquid or aqueous ammonia.  The hydroxides may be NaOH, KOH, or LiOH.  As shown, electrolytic cell liquor is concentrated in the evaporator to 40-55% NaOH and crystallized NaCl is removed.  The resulting liquor passes to storage 1 and thence to ammonia extraction column 3, whence pure NaOH containing a small amount of NH3 is withdrawn at the bottom.  The lighter ammonia phase passes to still bottom storage. The ammonia phase is concentrated in the evaporator to 40-55% NaOH and crystallized NaCl is removed.  The concentrated ammonia phase is mixed with NaOH, preferably concentrated feed liquor, to reduce the ratio of chlorate to hydroxide to 0,9-5 lbs. chlorate/100 lbs. NaOH, to prevent contamination of the subsequent hydroxide phase with chlorate, and the resulting mixture is fed to the ammonia extraction column, whence a further purified NaOH phase is recovered at the bottom. The second ammonia phase is partly discarded and the balance may be recycled to ammonia treatment, or mixed with NaOH for further use.  Alternatively, the second ammonia phase may be concentrated to 40-55% NaOH and chlorate crystallized therefrom at below 30 DEG C. NaCl may first be crystallized from the concentrated liquor at above 30 DEG  C.  Dilute NaOH is added to the first ammonia phase during storage.
Patent GB-117099-A (GB)
Title: Improvements in or relating to Electrical Heating Apparatus.
Inventor: BERRY ARTHUR FRANCIS
IPC: H05B3/00
Filed: 1917-05-03
Abstract: 117,099. Berry, A. F. May 3, 1917. Heating by electricity. -Heating elements consisting of wire or strip of resistance metal or alloy mounted mainly on one side of refractory sheet insulating material such as mica, are packed tightly between ribs or flanges on or in slots in the metal body to be heated by the insertion of bands or strips of highly expansive metal or alloy, such as brass, so as to maintain thermal contact when hot. As shown in Fig. 1, a single heating element d is mounted between curved, straight, or interrupted ribs b, c on the back of a hot-plate a. and is pressed tightly against the face of the rib c by forcing in the metal packing-strip e, which is separated from it by insulating material f and metal g. The faces of the ribs may be parallel or inclined. As shown in Fig. 2, two heating-elements d, d' are pressed, one against each rib, by forcing a pair of wedgeshaped packing-strips e, e<1>. Kettles, saucepans, and other vessels may be formed with ribs for heating in a similar manner. Metal blocks or slabs, such as flat irons, may be formed with a number of parallel slots, for the reception of the heating elements and metal packing as shown in Fig. 4. Specifications 14699/13, 12551/14, and 8829/15 [Class 37, Electricity, Measuring &c.] are referred to.
Patent GB-1176133-A (GB)
Title: Rolling Mills
Inventor: O'BRIEN JEREMIAH WAGNER
IPC: B21B37/64
Filed: 1966-02-15
Abstract: 1,176,133. Rolling. UNITED ENG. & FOUNDRY CO., and DAVY & UNITED ENG. CO. Ltd. 27 Jan., 1967 [15 Feb., 1966], No. 6542/66. Heading B3M. [Also in Division G3] A rolling mill of the type described in Specification 1,176,132, comprises a pair of back-up roll chocks 14, 15 urged together by a prestressing cylinder 21 and adjustably spaced by spacer screws 24 which are automatically driven in dependence on the thickness of the rolled material to maintain a constant thickness. Alternatively, or additionally, the tension in the material either before or after rolling may be automatically controlled. The thickness may be measured directly by X-ray or indirectly from the rolling load and the prestressing force. The back-up rolls may be bowed contrary to the bowing under load. The degree of bowing may be controlled by a load-cell 23. When the range of tension control is unable to keep the thickness constant there may be automatic change over to thickness control by the spacer screws.
Patent GB-1467054-A (GB)
Title: Semiconductor devices
IPC: H01L23/495
Filed: 1974-02-14
Abstract: 1467054 Semi-conductor devices SGS ATES COMPONENTI ELETTRONICI SpA 14 Feb 1974 [26 Sept 1973] 6694/74 Heading H1K A casing for a semi-conductor device of the kind described in Specification 1,273,589, including a resin body 30, Fig. 4B, moulded on a metal base-plate 11 having a thermal resistance of less than 3 C./watt to a semi-conductor chip (not shown) mounted thereon and dimensions equal to those of a JEDEC terminal case TO 220, is adapted to receive a five electrode chip. A contact strip 20, Fig. 3A, has groups comprising a central terminal 3 and four side terminals 1, 2, 4, 5 the central terminal 3 having an enlarged outer end for reception in a seat 14 in the baseplate 11 to which terminal 3 is electrically and physically connected. Wire connections between terminals 1, 2, 4, 5 and electrodes on the chip are effected by welding before encapsulation. Tie bars 12 and the redundant portion of contact strip 20 are removed, and the terminal portions outside the body 30 are bent alternately in opposite directions through 90 degrees, then through a further 90 degrees to space the now parallel terminal end portions from one another.
Patent GB-400072-A (GB)
Title: Holders for carrying umbrellas and similar articles
IPC: B60R7/12
Filed: 1933-03-06
Abstract: 400,072. Umbrellas &c. MOTT, H. J., 100, 199th Street, Hollis, New York, U.S.A. March 6, 1933, No. 6780. [Class 134.] A holder for umbrellas and similar articles comprises a tapering receptacle 12 divided by a partition 13 into two compartments 14, 15 and is pivotally mounted for example on the back wall of the front seat of a vehicle, normally hanging in an upright position from which it can be rotated to a horizontal position to permit easy withdrawal of the umbrella. A disc 24, Fig. 5, secured to the holder is rotatably supported on a pin 21, Fig. 4, integral with a fixed plate 19 having spring catches 25 adapted to engage apertures 26 in the disc 24 to secure the holder in horizontal position. Umbrellas when wet drain into a cup 16 closing the compartments 14, 15 and having an outlet 17.
Patent GB-1272919-A (GB)
Title: New 1,3,4-thiadiazoles
Inventor: SCHWARZ JUSTUS
IPC: C07D285/12
Filed: 1971-03-15
Abstract: 1,272,919. 1,3,4-Thiadiazoles. BERLINCHEMIE VEB. 15 March, 1971, No. 6873/71. Heading C2C. Novel compounds I where R<SP>1</SP> is Ph, cyclohexyl, n-Bu, 4-chlorophenyl or allyl and R is Ph, adamantyl, 2-hydroxyphenyl, pyridyl-(4) or -CH 2 Ph or a radical of Formula II where X is methylene or ethylene, are made by cyclizing appropriate acylthiosemicarbazides or alkylene-α,#-dicarbonyl-bisthiosemicarbazides. Pharmaceutical preparations possessing virostatic action contain I as active ingredient.
Patent GB-250377-A (GB)
Title: Improvements in methods of remote control for reversible electric motors
IPC: H02P7/00
Filed: 1925-03-14
Abstract: 250,377. Smith, Major, & Stevens, Ltd., and Stevens, P. H. March 14, 1925. Electromagnetic switches. - Two solenoids B, B' having a common yoke A act upon movable plungers C, C<1> attached to a rocking lever D which is linked to a motor reversing switch. Two shorter plungers H, H<1> are disposed in a weaker part of the magnetic field which becomes strong enough to actuate one or other of them when the corresponding long plunger has approached it, the resulting movement of either H or H<1> rocking a shaft J which actuates a circuit-closing switch. A two-way master switch K directs current to either solenoid as required.
Patent GB-547965-A (GB)
Title: Improvements in and relating to means for stopping pipes or mains, particularly gas mains broken in air raids
IPC: F16K7/10
Filed: 1941-06-03
Abstract: 547,965. Stopping pipes. BRIGHTON, HOVE & WORTHING GAS CO., and AYMARD, M. F. L. A. June 3, 1941, No. 7005. [Class 99 (ii)] In stopping or bagging-off broken gas mains in particular an expansible bag is inserted in the main and is self inflated by gas generated internally. Housed freely in the end of a casing a is a fitting, Fig. 2, in which a glass capsule i containing acid is enclosed in a container or cage surrounded by a bag c containing, e.g. magnesium or other carbonate. Inward movement of a striker j <SP>2</SP> breaks the capsule when its supporting tube j<SP>1</SP> is forced along the container j. The casing a contains a spring-actuated plunger k which is released by a trigger m controlled by a hand-lever o. When assembled for use, the head h adjacent the striker j abuts against the plunger k. By releasing the plunger the capsule is broken and the fitting carrying the bag is projected into the main. If the bag is to remain inflated for a long period additional soluble capsules of gelatine are provided.
Patent GB-740473-A (GB)
Title: Improvements in or relating to electroluminescent devices
IPC: H05B33/04
Filed: 1953-03-13
Abstract: 740,473. Electroluminescence. GENERAL ELECTRIC CO., Ltd., BATE, H. C., BOWTELL, J. N., and MILES, E. E. March 12, 1954 [March 13, 1953], No. 7018/53. Class 39 (1). The luminescent sandwich of an electroluminescent device is covered with a layer of synthetic resin which is substantially impervious to moisture and extends into sealing contact with the transparent insulating support. Polythene, mica-filled shellac and other thermoplastic or thermo-setting resins may be used and colouring matter may be incorporated. Particles of molten resin may be sprayed on by a flamespraying powder pistol. A flat square of glass 1 is coated on one surface with a transparent conducting layer 2 by treating the hot glass with stannic chloride in the presence of moisture leaving an uncoated portion 3. A rectangular sheet of copper foil 6 is attached to one edge by a conducting paint, e.g. silver dust or silvercoated copper flakes in a binder. A layer 9 of zinc sulphide in nitro-cellulose is coated on, followed by a layer 10 of an alkyd resin in butyl acetate. An overlapping sheet of foil 11 is applied to the edge of layer 10 at the place corresponding to the uncoated part of conducting layer 2, the part over foil 6 is masked off and a coating of aluminium evaporated over the surface. Polythene resin is sprayed on at 220‹ C. and the layer may overlap the face of the glass remote from the conducting layers. The foils 6, 11 are then exposed by cutting away the overlying layers, the exposed areas comprising the terminals. The aluminium layer has a thickness of 0.05-0.1 microns and acts as a fuse upon breakdown of the insulating layer 8. The exposed areas of foil may be on either the face or the edge of the device. Specification 717,169 is referred to.
Patent GB-892591-A (GB)
Title: Improvements in or relating to hydro-pneumatic actuating devices
Inventor: LIND JOHN ALEXANDER
IPC: F15B3/00
Filed: 1959-02-28
Abstract: 892,591. Hydraulic intensifiers. NEWTON & BENNETT Ltd. Feb. 29, 1960 [Feb. 28, 1959], No. 7063/59. Class 69 (2). [Also in Group XXII] An hydro-pneumatic intensifier wherein relatively low pneumatic pressure is converted into relatively higher hydraulic pressure comprises a control valve 35 on the pneumatic side having an actuating lever 42, a non-return valve 14 on the hydraulic side, and means 25 for neutralizing the non-return valve. The non-return valve consists of a ball 32 which is spring-urged against a seating 30 and permits hydraulic fluid pressurized in a cylinder 10 to pass to a line 17 connected to a mechanism to be actuated, such as an hydraulic clamp or chuck in a machine tool. The hydraulic fluid in the cylinder is pressurized by pneumatic pressure acting on a diaphragm 12 moving a piston 11 into the cylinder, the pneumatic pressure being supplied from the control valve 35 which is actuated by the lever 42 movable to one position wherein it connects a supply line 38 to a line 37 leading to the diaphragm chamber and a line 36 to exhaust, and to an alternative position wherein it connects the chamber to exhaust and the supply line to the line 36 which leads to a piston 23 movable by the pneumatic pressure against a spring to cause a rod 25 to lift the ball 32 from its seating and release the pressure in the line 17. In an alternative embodiment, the diaphragm chamber is replaced by a piston and cylinder, the piston being connected to the piston in the hydraulic cylinder.
Patent GB-119200-A (GB)
Title: Improvements in or relating to the Electro-deposition of Iron.
IPC: C25D3/20
Filed: 1918-04-26
Abstract: 119,200. Shepherd, r. A., and Brazil, Straker, & Co..April 26, 1918. Iron, depositing.-A plating electrolyte is made by boiling an aqueous solution containing, for each gallon of water, approximately 2 lb. ferrous sulphate, 3 oz. sal-ammoniac, and 1.5 lb. divided iron, there being also added, before or during boil. ing, 0.25 oz. potassium bromide, 0.166 oz. common salt, and 0.166 oz. boracic acid. The last three substances are preferably dissolved by boiling and stirring in one-twelfth of the total water employed, before addition to the boiling iron solution. The latter solution should be boiled for a period proportional to the quantities em ployed; when 12 gallons of water are taken the time required is 10 hours. The divided iron is stated to dissolve. Anodes of rolled iron or mild steel may be used. Steel, iron, brass, copper, cr other metals may be plated. A pressure of 4 volts and a current density of 1 ampere per sq. in. of cathode are suitable.
Patent GB-916826-A (GB)
Title: Improvements in or relating to conveying apparatus
Inventor: FISHER RICHARD ARTHUR
IPC: H02P3/06
Filed: 1961-02-27
Abstract: 916,826. Feeding webs. UNITED STATES BEDDING CO. Feb. 27, 1961, No. 7122/61. Class 100 (1). A web is fed predetermined distances by opposing belts 66, 94 passing around pulleys 62, 92 respectively which are driven by a motor 26 according to the arrangement of stops 123 on rods 105, such that the web is fed by amounts determined by the spacing of the stops. The stops are engaged in turn by a switch 122 which causes de-energization of a motor 26 driving the belts. The switch 122 is carried by a block 117 on a threaded shaft 112 driven by the motor 26 through a reduction gear 35. The switch 122 forms part of a control circuit (Fig. 6, not shown). A series of rods 105, Fig. 2, are provided carrying stops at varying intervals, the rods being transversely adjustable, by a handle 106, to co-operate with the switch 122. A second switch 130 engages an adjustable stop 131 which, through the control circuit, reverses the direction of rotation of the motor 26 to return the block to starting position. The motor drives the pulleys 62, 92 through a oneway clutch 59, a shaft 30 in the drive being braked by an electrical brake 31 to stop rotation of the motor shaft upon de-energization of the motor. The lower belts 94 may be lowered by a platform 83 actuated by a foot lever 69, the platform being held in raised position by springs 87.
Patent GB-525982-A (GB)
Title: Improvements in or relating to flexible containers such as handbags
IPC: A45C3/10
Filed: 1939-03-04
Abstract: 525,982. Handbags. SCHENKEL, P., and SCHENKEL, L. March 4, 1939, No. 7165. [Class 133] A handbag is provided with a reinforcement of cane extending along the upper and side edges of the side walls 1 and across the bottom edges of the ends 3, the reinforcement being enclosed in a piping 2, connecting the parts. U.S.A. Specification 1,999,424 is referred to.
Patent GB-557846-A (GB)
Title: Improvements relating to the coating of metal sheets
IPC: C23C22/73
Filed: 1942-05-27
Abstract: 557,846. Coating metals. PYRENE CO., Ltd. (Parker Rust-Proof Co.). May 27, 1942, No. 7204. [Class 82 (ii)] In the forming of an article having a surface of iron, zinc or cadmium or an alloy of iron, zinc or cadmium, the sheet is coated with a chemical solution, e.g. a phosphate solution, to form a coating weighing less than 150 mgs. per sq. ft., the coated surface painted and the sheet then formed into the article. This sheet may be made of ferrous metal with an electrodeposited layer of zinc on it, and the weight of the coating is preferably less than 110 mgs. per so. ft., e.g. 50-100 mgs. per sq. ft. If the coating contains zinc phosphate, a heavier coating than that desired may be formed on the surface, and then reduced to the desired weight by treatment with a solution of chromic, acid or a dichromate. The coating may be an oxide one and produced by treatment with a metal etching acid and an oxidizing agent, e.g. a solution containing 20 gms. of sodium chlorate and 20 c.c. of sulphuric acid in a gallon of water. Exceptionally thin coatings may be produced by passing the sheets between resilient rolls while being coated, and the phosphate coating solution accelerated by both a nitrate and a chlorate as described in Specification 551,261 may be used. Specifications 346,401, 362,956, 386,739** and 554,734 also are referred to.
Patent GB-214404-A (GB)
Title: Improvements in or relating to envelopes
IPC: B65D27/22
Filed: 1923-03-13
Abstract: 214,404. Swigert, M. A., and Swigert, H. A. March 13, 1923. Envelopes.-In envelopes for the transmission of printed matter which can be inspected by the withdrawal of an inspection flap held in releasably interlocking engagement, the interlocking engagement is provided by a projection on one member interlocking with one or more dabs of glue on an adjacent member, the engagement being such that when the panels are spread for the insertion of the enclosure the inspection flap follows the back panel, allowing the enclosure to be positioned between it and the front panel, thereby preventing the loss of the enclosure. In the construction shown in Fig. 2, the inspection flap 11 is at one end of the back panel 6 and is provided with notches 15 forming lugs 16 and hook members 18. An adjacent flap 10 at the end of the front panel 5 is provided with gummed portions 14 positioned so that, when the flaps 10, 11 are folded inwardly upon their panels 5, 6 and the panels are folded together about the line 2, the gummed portions register within the notches 15 and the flaps 10 and panel 6 adhere together with the inspection flap 11 releasably held between them. The opposite ends of the panels are gummed at 13 to secure them together. An ordinary sealing-flap 7 is gummed at 12 for sealing in the usual manner. In a modification, Fig. 8, the inspection flap 310 is provided with an extension 313 which has a spot or dab of gum 312, and the back panel 307 is provided with a notch 317 located to correspond with the gummed portion 312 when the panels are folded together along the line 320 and the extension 313 is folded about the line 314 on to the back panel. The portions 310, 313 of the inspection flap are thereby adhered together at the gummed spot and releasably interlocked with the back panel. A flap 311 at one end of the back panel is cut away at 319 to clear the notch 317 when folded inwardly. The envelope is closed at one end by a gummed margin 309 on the front panel 306, and a sealing-flap 308 with a gummed edge 316. The interlocking lugs of the inspection flap may be of various shapes, and the inspection flap may be located at the bottom edge of the envelope.
Patent GB-836448-A (GB)
Title: Electric water heater
IPC: F24H1/10
Filed: 1957-03-06
Abstract: 836,448. Electric water heaters. PLOW, R. S. S. Oct. 22, 1957 [March 6, 1957], No. 7352/57. Class 39(3) A water heater comprises an annular water chamber with a spirally wound sheathed electric heating element K therein, the supply of current to the element being controlled by a switch J closed by water pressure acting on a diaphragm G forming a wall of a chamber R. The switch comprises a tube J containing mercury on a pivoted platform 1 resting on a plunger H supported by the diaphragm G forming a closure to a chamber R at the top of the heater. Water is admitted to the heater through a pipe A<SP>1</SP> with a tap A, and the pipe A<SP>1</SP> communicates through a pipe E with the chamber R so that current is supplied only when water flows. Hot water flows out through a vertical pipe D coaxial with copper tubes forming the annular water chamber. Terminals K<SP>1</SP>, K<SP>2</SP> of the element K, which has a copper sheath, are connected as shown to the current supply. A pilot lamp L is connected across the supply leads. In Fig. 1 of the Provisional Specification, a tap V admits water from a pipe I to the annular water vessel and through a vertical pipe G to an expansion chamber H in which the water pressure forces up a piston P carrying a contact S<SP>2</SP> against a contact S<SP>1</SP> on a terminal block T.