baber/WOPTO huggingface dataset:
Patent GB-368639-A (GB)
Title: Improvements in stamps and drawing presses
IPC: B21D28/08
Filed: 1931-07-10
Abstract: 368,639. Cutting-out apparatus. STERN, K., PACHTINGER, B. STERN-, 5, Pfarrplatz, Baden, near Vienna, STERN, J., STERN (nÚe RANZENHOFER), E., LUTWAK, O., and LUTWAK (nee PACHTINGER), F., 51, Stumpergasse, Vienna. July 10, 1931, No. 19924. Convention date, July 21, 1930. [Class 31 (i).] In a quincunx arrangement for feeding a sheet 12 through a press 42, the sheet is held by grippers 10 on a carriage 7 movable on rods 6. The carriage is positioned by a spring pin 22, engaging a spacing rack 19, and released after each operation of the press by a cam. The rack 19 is held on a carriage 5 slidable on rods 4 and is positioned by hand-released pawls 35 engaging spacing racks 34. The carriage 7 is fed by a mass secured by cords 15 according to the direction of travel and the carriage 5 is fed by masses secured to cords 39. At the end of the row d of stampings, the mass is secured to the other end of the cord 15 and the rack 19 which is mounted loosely in the carriage 5 slides axially an amount equal to the stagger between the rows. The pawls 35 are then engaged in the next tooth of the rack 34. The racks may be interchangeable or may be adjustable as shown in Fig. 10, in which locked nuts 45 are mounted on a screw 19.
Patent GB-204807-A (GB)
Title: Improvements in apparatus for operating fishing gear
IPC: A01K73/06
Filed: 1922-07-20
Abstract: 204,807. Doig, J. A., and Tofton, F. P. July 20, 1922. Coiling.-In a rope-coiling gear of the type in which a driven sleeve carrying a rotating spout c rotates between an inner sleeve and a fixed outer casing, the rope being inserted laterally into the interior of the inner sleeve when the two sleeves are moved relatively to each other and to the casing so that slots in all three are coincident, the slot in the inner sleeve is closed by pushing a block axially into it, the block carrying V-shaped projections which fit the grooves f<2>, Fig. 3.
Patent GB-170082-A (GB)
Title: Process for the production of zinc oxide suitable for metallurgical treatment for gypseous precipitates
IPC: C01G9/02
Filed: 1920-07-09
Abstract: Gypseous zinc precipitates resulting from the treatment of zinc liquors containing sulphate, with lime, are freed substantially from their sulphur content by heating and stirring the precipitate suspended in a solution containing zinc chloride and sodium or calcium chloride, and calcining the resulting basic zinc sulphate after washing with water to free it from calcium chloride &c.  The zinc chloride should be approximately equivalent to the sulphate present, and may be added from external sources, or may be prepared in situ by means of the sodium or calcium chloride. Alternatively the process may be carried out during the precipitation of the gypseous zinc hydrate.  Dilute milk of lime is slowly added to the zinc liquor heated for example to about 70 DEG  C., to which has been added sodium or calcium chloride.  If the liquor has a high sulphate content it may be reduced prior to the above treatment by adding sodium chloride and crystallizing out the resulting Glauber's salt. High concentration of zinc and of neutral salts such as sodium and calcium chlorides facilitate the formation of the basic sulphate.
Patent GB-767145-A (GB)
Title: Internal combustion engine of the liquid-fuel injection compression ignition type
Inventor: WATTS RICHARD
IPC: F02B23/06
Filed: 1954-07-08
Abstract: 767,145. Fuel injection compression ignition engines. RICARDO & CO., ENGINEERS (1927), Ltd. June 21, 1955 [July 8, 1954], No. 19981/54. Class 7 (3). In an internal combustion engine of the liquid fuel injection compression ignition kind operating on the four stroke cycle comprising a combustion chamber formed at least mainly by a pocket centrally disposed in the piston crown and into which the majority of the air is forced at the end of the compression stroke and fuel is injected directly by a fuel injection device, the fuel injection device is situated centrally in the cylinder head and is of the kind which delivers a single main jet of fuel and there is formed or disposed centrally within the combustion chamber a deflector which during the injection period lies in the path of the main jet of fuel delivered by the fuel injection device and adjacent to the nozzle of such fuel injection device so that substantially the whole of the fuel in the main fuel jet is deflected by the deflector so as to be distributed within the combustion chamber pocket and the inlet and exhaust parts are disposed in the cylinder head and controlled by poppet valves which lie wholly within the projected area of the cylinder bore with their axes on a diameter of the cylinder bore. As shown the deflector G deflects the fuel from the fuel injector F outwards as indicated at H. The fuel injector may be of single-hole pintle type employing either an inwardly or outwardly moving valve member. In some cases, the injector may be of the kind having in addition to a single main fuel injection orifice a subsidiary orifice through which the fuel is injected during the starting period and possibly to a small extent during normal load running. The deflecting surface G<SP>1</SP> may be flat or curved from a centre point outwards and either in a concave or convex sense. It may have a series of grooves or recesses formed therein and radiating from its centre. Or where the deflecting surface is conical or of curved form it may be provided with flats radiating from the centre of the surface. The employment of grooves or flats may for example be suitable where there is some degree of intentional or incidental rotation of the air charge. Satisfactory results have been achieved when at the end of the compression stroke the deflecting surface does not lie at a greater distance from the injection orifice than approximately one quarter of an inch. An example is given in which the distance between the apex of the deflecting surface and the nozzle at the end of the compression stroke might be of the order of 0.1 to 0.25 ins. the base diameter being of the order of 0.3 ins.
Patent GB-929502-A (GB)
Title: Decoder for a load sharing matrix switch
IPC: H03K19/21
Filed: 1960-06-08
Abstract: 929,502. Circuits employing bi-stable magnetic elements. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 8, 1960 [June 8, 1959], No. 20060/60. Class 40 (9). [Also in Group XXXVIII] In a magnetic switch for a storage matrix in which as many input winding pairs are provided as there are switch cores, and the magnetic state of a single core is reversed by selectively energizing one winding of each pair as described in Specification 909,899, a -binary coded input to a memory address register 70, Fig. 3, is translated by exclusive OR logical circuits 75, 80, 85 and AND gates 87 into a 16 out of 32 output code at switch drivers having true and complementary outputs 1 to 16 and 1 to 16 respectively, the coded output being supplied by one set of 16 driver outputs or the other depending on whether a read or a write control signal is applied from a read-write trigger 73. To switch a core number 12, for example, the binary digits 1100 are applied to memory address register triggers D,C,B,A in that order. True trigger outputs are then obtained on lines C, D and complementary outputs on lines #A, #B. Each output is applied to a respective exclusive OR circuit 85a-85d, and is also applied by way of exclusive OR circuits 75 and 80 to a true or a complementary input of each of exclusive OR circuits 85e to 85o. The outputs of the OR circuits 85 are applied to the drivers over AND gates 87 when a timing pulse appears on line 88. For a reading operation a pulse on line READ is transmitted from a read-write trigger 73, and the exclusive OR circuits then provide respective true or false outputs which establish driver outputs 2,3, 4, 5, 6, 7, 8, 9, 10, #11, 12, 13,#14, 15 and 16. For a write operation a pulse on a WRITE line causes outputs to be obtained instead from the other driver outputs such as 2, 3, 4 . . . &c. In this way the single core number 12 is selected and switched either in the one sense or the other under the control of the read-write trigger, since each winding of a winding pair from a driver such as 2, #2 respectively pass through all the cores in opposite magnetizing directions. The driver providing outputs 1, 1 energizes one or other of its windings for every input value, and for this reason is connected directly to the read-write trigger through associated timing control AND gates. Details of an exclusive OR circuit as shown in Fig. 4 in which true and complementary inputs A, B and A, B are applied over AND gates 90a-90d and OR gates 92a, 92b. It is stated that the gate elements may comprise diodes, vacuum tubes or transistors and that the triggers and drivers may utilise vacuum tubes or transistors arranged for bi-stable operation.
Patent GB-977336-A (GB)
Title: Explosive powered fastener driving tools
IPC: B25C1/14
Filed: 1961-06-02
Abstract: 977,336. Cartridge-operated fastener driving tools. OLIN MATHIESON CHEMICAL CORPORATION. June 2, 1961, No. 20089/61. Heading B4C. [Also in Division F3] A cartridge-operated fastener driving tool is of the type in which a hammer blow on the head 8 of a striker member 2 causes detonation of a rim-fired cartridge 13 which drives a fastener 10 by means of a piston-like plunger 3, the cartridge 13 being carried in a cavity 12 in the upper or inner end of the plunger 3 with its crimped or closed end facing in the direction in which the plunger is to be driven. The striker member 2 is provided with a cylindrical fixed projection 15 of such size as, in operation, to strike the whole of the proud standing rim of the cartridge. Reference has been directed by the Comptroller to Specification 901,203.
Patent GB-201513-A (GB)
Abstract: 201,513. Pini, R. July 25, 1922, [Convention date]. Lighting-torches, non-electric.- A gas lighter consists of a stem 5 of hardened spring steel wire looped at about the middle of its length so as to form two spring limbs, one of which carries a small steel plate or spur 4 arranged, on gripping the limbs, to rub against a block 2 of ferrocerium removably mounted in a recess or holder 3 provided between a stud 1 and the bent end of the other limb.
Patent GB-978972-A (GB)
Title: Improvements in or relating to dehydrating brussels sprouts
Inventor: HAZELDINE NORMAN BERNARD
IPC: A23B7/02
Filed: 1961-06-05
Abstract: 978,972. Dehydrating brussels sprouts. UNILEVER Ltd. June 4, 1962 [June 5, 1961], No. 20163/61. Heading A2D. In dehydrating Brussels sprouts, there are made in each sprout before dehydrating at least two cuts extending from the periphery of the sprout to the centre, at least one of these cuts extending from the periphery of the butt region of the sprout, the plane of the cut being along the axis of the butt, or inclined at an angle of less than 45 degrees thereto, and at least one other cut extending from the periphery of the apical region of the sprout, the plane of this cut being along the axis of the butt, or inclined at an angle of less than 45 degrees thereto, at least one of these cuts being extensive, the cuts being made so as not to divide the sprout into separate pieces, and, if neither of the said cuts passes through the butt, at least one additional cut is made to pass through the butt. In the drawings: Fig. 1 is a section of a sprout along the axis of its butt 4, Q being a cut of length A and depth B, Fig. 2 a view towards the apex 3 of the cut sprout, Fig. 3 a section on IV-IV of Fig. 2 and Fig. 4 a second on V-V of Fig. 2; Fig. 6 is a view of another cut sprout, Fig. 7 a view towards the apex of the sprout of Fig. 6 and Fig. 9 a section on IX-IX of Fig. 7.
Patent GB-1215734-A (GB)
Title: Rotary furnace
Inventor: SHERWOOD WILLIAM LYON
IPC: F27B7/26
Filed: 1968-04-29
Abstract: 1,215,734. Rotary furnaces. W. L. SHERWOOD. 29 April, 1968 [1 May, 1967], No. 20167/68. Heading F4B. A rotary furnace, particularly for the reduction of iron ore pellets comprises a directly driven section 1, in which solid state reduction takes place, which section is connected through a roller chain to drive a succeeding furnace melting section 2. A circumferential support member 11 around the discharge end of section 1, carries a drive sprocket 12 whilst a similar member 15 on the adjacent end of section 2 carries a driven sprocket 14. The pins 13 of the roller chain transmit the rotary drive between the sprockets to provide a connection having a limited degree of angular, lateral and longitudinal displacement between the furnace sections on rotation. Release of a single pin 13 allows the section 2 to be replaced by an alternate melting section 29 whilst it is being relined. The sections are provided with burners 30, 22. At the discharge end of section 1 within its shell are arranged a circumferential series of screens (27, Fig. 2, not shown) through which fires are discharged to refractory lined hoppers 16 mounted between circumferential support members 9 and 11 and longitudinal members 10 interconnecting them. The discharge gates 17 of these hoppers, are actuated as the furnace rotates, when their associated rollers 18 contact cam surface 19, so as to discharge the fires into a quench tank 21.
Patent GB-573587-A (GB)
Title: Improvements in electronic devices particularly for x-ray apparatus
IPC: H01J35/02
Filed: 1943-12-03
Abstract: 573,587 . Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 3, 1943, No. 20235. Convention date, Dec. 7, 1942. [Class 39 (i)] A discharge apparatus such as an X-ray generator comprises a sealed envelope 11 containing an anode 13, and a cathode 19 for X-ray generation and transformer means 25 within the envelope to supply this cathode and anode. The transformer is associated with a triode oscillator formed of an anode 65, grid 37 and cathode 33 also enclosed in the envelope. The anode 65 is a metal frame which serves to support the coils of the transformer, each of which is connected at the supported end to anode 65. A metal shell 73 forms a mechanical and electrical connection for the X-ray anode 13 with the secondary 29 of the transformer.
Patent GB-796907-A (GB)
Title: Process for densifying spongy metals
IPC: B22F3/12
Filed: 1956-06-29
Abstract: Spongy metals (Ti, Hf, Zr) are densified by covering with a protective non-reacting sheath (eg. steel), applying a steady pressure (as by rolling) at a temperature between 500 DEG C. and 900 DEG C. to deform the covered metal and substantially increase its density without fracturing the sheath and finally removing the sheath.  In an example, zirconium sponge was compacted at 20 tons p.s.i. and inserted into an oversized steel tube the pressure in which was then reduced to 25 microns to remove entrapped gases, and the ends of which were sealed by crimping.  The structure was then hot-rolled in successive passes at 700 DEG C. until a 90 per cent reduction in thickness was obtained.  Ends and sides of the sheath were sheared off leaving a dense, metallurgically workable Zr plate, which was cold-rolled to finished size.
Patent GB-586984-A (GB)
Title: Rectifiers
IPC: A23L27/00
Filed: 1944-10-20
Abstract: 586,984. Asymmetrically-conducting resistances. STANDARD TELEPHONES & CABLES, Ltd. Oct. 20, 1944, No. 20344. Convention date, Oct. 26, 1943. [Class 37] A rectifier assembly comprises an insulating base 10 having a central rectangular channel or depression 12 with two slots 14, 141 extending therefrom wherein a rectifier element 28 is held by a metal clamp 36 in contact with the counterelectrode the lead connections 40, 38 being made respectively to the clamp or an integral extension thereon and to the baseplate extension 22 located in the slot 14. The element comprises a counter electrode on which the clamping pressure is exerted over an area whereunder is a paper layer having an opening through which the counter electrode extends to the selenium layer over which may be located a raised portion or hole in the clamp. In a modification the clamping is effected by wrapping with insulating tape, a rectangular metal plate being located beneath the tape in contact with the counter electrode. Specification 526,482 is referred to.
Patent GB-732840-A (GB)
Title: Improvements in cyclone separators
IPC: B04C5/14
Filed: 1952-08-13
Abstract: 732,840. Centrifugal separators. SCHMID, O. Aug. 13, 1952, No. 20364/52. Class 23. In dust-separating apparatus comprising a whirl chamber 2 having a gas outlet 5 and discharging dust into a collector 3, a baffle 6 is located in the collector adjacent the dust outlet end of the chamber and an annular baffle 8 is positioned between the outlet end and the baffle 6. The whirl chamber may have a tangential inlet 1, as shown, or an axial inlet, and the baffle 8 may be truly conical or its upper surface may be convex.
Patent GB-1445652-A (GB)
Title: Sulphuric acid process for preparing titanium dioxide
IPC: C01G23/04
Filed: 1974-05-08
Abstract: 1445652 Sulphate process TiO 2  AMERICAN CYANAMID CO 8 May 1974 [25 May 1973] 20398/74 Headings C1A and C1N In a process for the production of a titanium dioxide pigment by the leaching of a titaniferrous ore with H 2 SO 4 , the ferric iron in the liquor is catalytically reduced with SO 2  or a soluble sulphite or bisulphite and the sulphuric acid generated by the reduction is neutralized with the compound selected from MgO, MgCO 3 , MgSO 3 , NH 3 , NH 4 OH, NH 4 HSO 3  (NH 4 ) 2 CO 3  to reduce H 2 SO 4 -TiO 2  weight ratio in the leach liquor to 1À75-2À20 prior to hydrolysis to precipitate Ti(OH) 2 . The reduction may be performed before, after or during addition of the neutralizing agent. Suitable catalysts are activated carbon, charcoal or thiocyanate ions. Ferrous sulphate formed may be crystallized out.
Patent GB-1144295-A (GB)
Title: An earphone assembly
IPC: H04R1/10
Filed: 1967-05-03
Abstract: 1,144,295. Earpieces. AKUSTISCHE u. KINO-GERATE G.m.b.H. 3 May, 1967 [1 June, 1966], No.20426/67. Heading H4J. In an earphone assembly, an earpiece is of soft plastics material or soft rubber and is formed as a moulding having a central recess into which a transducer capsule can be snapped for retention. The moulding is provided with an annular projection by means of which a protective cap is attached on the side remote from the ear. The moulding 1 (Fig. 1) captively holds a transducer capsule 3 by an annular flange 4. A bead 5 ensures sealing contact with the ear. A projection 6 has a double conical aperture 7 for receiving a guide rod 10 of a head strap. A cable sleeve 9 is provided and projections 8 fix the connecting cable. Electrical connections to the capsule 3 may be formed by plugging, clamping or soldering through openings 12. Elements 11 may be embedded in the moulding 1 to provide connections to the capsule 3. An alloy cap 15 is held on an annular projection e.g. by lugs 16. Alternatively, a moulding 17 (Fig. 2) having a cylindrical recess 20 has the sound emitting opening of a capsule 19 facing the bottom of the recess 20 and this recess is sound permeable, either by the provision of apertures 18 or by making the bottom of the recess so thin that it acts as a diaphragm. A cap 21 has a flange 23 which engages a nose 22 on the moulding 17. The moulding 17 is circular, or rectangular with rounded corners, and has a soft bead 26 mounted thereon. Alternatively the bead has an inturned rim (28), Fig. 3 (not shown), in the form of a cap to accommodate the ear and enable the earphone to be worn without a headstrap.
Patent GB-964072-A (GB)
Title: Device for testing and checking bleeding time
IPC: G01N33/86
Filed: 1963-05-22
Abstract: 964,072. Physiological measurements. BECTON DICKINSON & CO. May 22, 1963 [June 7, 1962], No. 20445/63. Heading ASK. A device for use in measuring the clotting time of blood comprises a handle member from which extend a number of tabs of absorbent material. In a simple form, the device is made from a single piece of absorbent paper shaped to provide a handle 10 and tabs 11 and having lines 12 of wax or other water resistant substance between individual tabs and between the tabs and the handle. The tabs may be numbered in increments of one half, and, in use, the tabs are sequentially held against blood issuing from an incision at internvals of a half minute until the blood is sufficiently dry not to stain a tab. In other forms of the device separate tabs are cemented, in fanwise formation, around the edge of a part-circular handle made of synthetic resin, coated paper or metal.
Patent GB-427704-A (GB)
Title: Improvements in and relating to locks
IPC: E05B63/14
Filed: 1933-07-20
Abstract: 427,704. Sliding - bolts. SANREY, R. G., 99, The Grove, Isleworth, Middlesex. July 20, 1933, No. 20523. Void [Abridged as open to inspection under Sect. 91 of the Acts, Feb. 26, 1934]. [Class 44] In a tubular mortice lock for doors, drawers, &c., two spring-pressed sliding bolts 4, 26 are mounted within the casing 2, the one 4 sliding within the other 26, the former being operated by a toothed handle spindle 29 and the latter by a toothed key 10 engaging racks 8 and 31 respectively. The spacing of the teeth in the racks may be non-uniform. The bolt 4 may be held retracted by engaging a pin with a notch 36. Outward movement of the bolts is limited by a pin 5 engaging in slots therein.
Patent GB-149528-A (GB)
Title: An improved animal trap for catching rats, mice and other vermin
IPC: A01M23/18
Filed: 1919-08-22
Abstract: 149,528. Hockey, G. H. Aug. 22, 1919. Animal traps.-In a self-setting box trap, the slide or door B, which is mounted on pivoted arms C, D so as to fall and close the entrance, is controlled by the movement of the bait container E which turns on a pivot E<1>, the arm F attached to the container moving into and out of engage. ment with the bent end of the arm C. The trap is re-set by the depression of the arm D by the lever H attached to the gate G, which is lifted by the animal passing into the receiver behind the trap.
Patent GB-885868-A (GB)
Title: Methods of treating soft magnetic materials
IPC: H01F1/03
Filed: 1960-06-14
Abstract: 885,868. Making magnetic wire and tape; altering physical properties. WESTERN ELECTRIC CO. Inc. June 14, 1960 [June 18, 1959], No. 20834/60. Drawings to Specification. Classes 83 (2) and 83 (4). A method of treating a body of soft magnetic material comprises cold working the body to produce an increase in both the coercive force and squareness of the hysteresis loop of the material, heating the cold worked body to produce a decrease in the coercive force of at least 5% and a decrease in the squareness of less than 50% and further cold working said body. In the production of a magnetic wire or tape the first cold-working comprises colddrawing, then after the heat treatment, again cold-drawing and if a tape is required the colddrawn wire is finally flattened by cold rolling. In an example, an annealed round bar of molybdenum permalloy (4% molybdenum, 79% nickel, 15.5% iron all by weight) of diameter approximately 64 mils is drawn with intermediate anneals until the diameter is reduced to approximately 2 mils. This cold working produces a squareness of 0.99 and a coercive force of 3 oersteds. The wire is annealed in an atmosphere of hydrogen to decrease the squareness to approximately 0.9 and the coercive force to approximately 1.5 oersteds. After the anneal the wire is cold-drawn to a diameter of 1 mil and the squareness rises to a terminal value of approximately 0.99 and the coercive force to a maximum of approximately 7.5 oersteds diminishing to approximately 5 oersteds. To convert the wire to tape, the wire is flattened by cold-rolling to produce a tape 0.3 mil thick and 3.5 mils wide. This judicous choice of the diameter at which the material is annealed in conjunction with a prescribed amount of cold-working following the anneal permits production of wire or tape of the desired dimension with any coercive force between approximately 7 and 3 oersteds. Annealing temperatures in the range of from 700‹ to 800‹ C. for a period of 1 second produced a sensitivity in the magnetic material of the above order. Several examples illustrating the invention are given in the Specification. Specification 877,731 is referred to.