baber/WOPTO huggingface dataset:
Patent GB-1455947-A (GB)
Title: Method and apparatus for initiating scarfing
IPC: B23K7/06
Filed: 1974-04-18
Abstract: 1455947 Scarfing NIPPON STEEL CORP 18 April 1974 [18 April 1973 6 Aug 1973 (5)] 16976/74 Heading B3V The initiation of a scarfing operation on a metal workpiece 2 by an oxygen scarfing nozzle 3 moving relative thereto is facilitated by feeding oxygen through a hollow consumable electrode 13 contacting a defect on the workpiece surface and passing an electrical current between the electrode 13 and workpiece 2 so as to raise the temperature of the workpiece surface. In one embodiment, oxygen scarfing nozzles 3 are mounted on a cross carriage scarfing machine 1 which is moved relative to a workpiece 2. A hollow electrode 13 is inclined at 30-90 degrees to the workpiece surface and is fed into contact with the workpiece 2 by rollers 14, whereupon an arc is produced between the electrode 13 and workpiece 2 by a D.C. source causing the temperature of the workpiece surface to be raised by the melting of the electrode tip and the heat of oxidation produced by the oxygen flowing through the electrode 13. The feeding speed of the electrode 13 is lowered when the arc is struck. Upon initiation of the scarfing by the scarfing nozzles 3, the electrode 13 is withdrawn and the oxygen supply therethrough is discontinued. The amount of current supplied to the electrode 13 and the duration of the arc are dependent on the speed of the scarfing machine 1 as detected by a roller 31. The height of the nozzles 3 above the workpiece 2 is maintained at a constant value of 5-10 mm. by a detector 28 which controls a height adjusting motor 22. The detector 28 is mounted on a stand 23 which is rotatable about a rod 24 to maintain it over the workpiece 2 when near the edge of the workpiece. The scarfing process may be automatically initiated when a mark on the workpiece 2 is detected by a detector 29. When the electrode 13 is used, a new electrode 13 is supplied from a peripheral pocket of a rotatable disc (52) (Figs. 4 and 5, not shown). The electrode 13 is connected to an oxygen supply duct (64) by a compressible cylindrical packing (57). In another embodiment (Figs. 7 and 8, not shown) the side of a workpiece 2 is scarfed, the nozzles 3 being maintained a constant distance from the top and side surfaces of the workpiece 2. The workpiece 2 may alternatively be moved.
Patent GB-255065-A (GB)
Title: A press for embossing, scoring and cutting paper or card in bulk or large sheets
IPC: B31F1/07
Filed: 1926-07-07
Abstract: 255,065. Martino, G. de. July 9, 1925, [Convention date]. Drawings to Specification. Cutting-apparatus.-In a machine for simultaneously embossing, cutting, and scoring large cardboard or paper sheets by means of an adapted cylinder printing-press in which embossing, scoring, and cutting devices are assembled in the forma and complementary elements are applied to the cylinder, the cylinder is covered with a plate of copper against which the cutting knives bear during the operation of the machine. According to the Specification as open to inspection under Sect. 91 (3) (a), 'box blanks may be formed by using cutting and scoring blades only. Also, in order to strip the sheets from the cutters, small pads of linen or spring plungers placed between the blades may be used, and gaps may be provided in the cutting edges so as to leave connecting parts which may be severed after the operation is completed. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1459709-A (GB)
Title: Parts handling machine
Inventor: DIXON PAUL H
IPC: B21D43/10
Filed: 1975-04-24
Abstract: 1459709 Reciprocating conveyers B DIXON 24 April 1975 [26 April 1974] 17026/75 Heading B8A A machine 15 for transferring parts 16 one at a time from a loading station 17 to a delivery station 18 comprises a support in the form of a plate 25 shown disposed vertically, a pair of slots 32, 33 in the plate 25, a carriage 24 guided by pins 30, 31 having bearings 37 in the slots 32, 33 and a pair of jaws 26 having gripping fingers 45. As shown the slots 32, 33 are L-shape and the carriage 24 is moved by an actuator 70 acting through arms 67, 65 and rods 60. In the position shown in Fig. 1 initial extension of the actuator 70 causes the jaws 26 to pivot about bushings 49 to grip the part 16, the carriage 24 being restrained from movement by friction discs and thrust washers 40 during this action. Thereafter continued extension of the actuator 70 causes the carriage 24 to follow the path defined by the slots 32, 33 to deliver the part 16 to the delivery station 18 as shown ghosted. The initial retraction of the actuator 70 to return the carriage 24 to the loading station 17 causes the jaws 26 to open to release the part 16 at the delivery station 18, the friction discs and thrust washers 40 preventing movement of the carriage 24 until the part 16 is released. An hydraulic cylinder 76 assists the friction discs and thrust washers 40. As shown the upper legs of the slots 32, 33 are horizontal and parallel to track 19 along which the parts 16 are fed so that the initial withdrawing movement of the parts 16 is in the same direction as the track 19. Fig. 13 (not shown) illustrates an inclined feed for parts (16b), the upper legs of the slots (32b, 33b) being similarly inclined. Fig. 10 (not shown) illustrates an embodiment wherein parts (16<SP>1</SP>) are inverted during transfer by use of gears (86), (94).
Patent GB-171183-A (GB)
Abstract: 171,183. Macrorie, A. K., and Airey, H. Morris-. Aug. 11, 1920. Thermionic oscillation generators.-A power valve is set into oscillation bv means of an auxiliary valve, the plate and grid circuits of both valves being reciprocally coupled together. As shown in Fig. 1 for transmitting continuous waves, the plate Q of the power valve W is connected through a condenser B to the aerial inductance C. A tapping T from that inductance leads either directly or through a grid leak to the grid D of the auxiliary valve V, the plate E of which is coupled through a transformer J, L to the grid Q of the power valve. The grid circuit of the power valve contains a grid leak M, N, whilst the secondary coil L is shunted by a variable condenser K to form a tuned circuit K, L which is adjusted to resonance with the aerial circuit. The signalling-key is placed in the positive lead of the direct-current supply to the auxiliary valve V. Alternating high tension may be supplied instead of direct current to the plate of the oscillatory valve, in which case radiation takes place only during that period of the cycle when the plate potential is positive. For reception the mutual coupling is loosened, and a separate heterodyning-set is employed.
Patent GB-654152-A (GB)
Title: Improvements relating to the catalytic desulphurisation of naphthas
IPC: C10G45/24
Filed: 1947-06-30
Abstract: Straight-run naphtha is desulphurized by passing it in vapour form in admixture with hydrogen over a sulphur-resistant catalyst, which catalyses not only the dehydrogenation of naphthenes to aromatics but also the conversion of organically-combined sulphur into hydrogen sulphide, at a temperature and pressure such that the dehydrogenation of naphthenes contained in the naphtha is effected to an extent not substantially in excess of that required to provide sufficient hydrogen to convert the organically-combined sulphur in the naphtha into hydrogen sulphide and to maintain the vapour phase in the reaction zone, a hydrogen-rich gas mixture being separated from the treated naphtha and recycled to the reaction zone to constitute the whole of the hydrogen supplied thereto.  In general, the desulphurization is carried out at 650-800 DEG  F. and 25-500 pounds per square inch pressure and results in a product which, except for sulphur elimination, has properties and boiling range similar to the feed-stock.  The hydrogen-rich gases may be separated by cooling the treated naphtha at reaction pressure.  The hydrogen sulphide in the separated gases builds up to an equilibrium concentration, after which the gases may be recycled to the reaction zone without further increase in the content of hydrogen sulphide which thereafter remains dissolved in the treated naphtha until such time as it is depressurized.  If desired, however, the hydrogen sulphide may be removed from the gases and the H2S-free gases recycled to the reaction zone.  Before recycling, the gases may be submitted to treatment for increasing the relative proportion of hydrogen therein, for example by passage through an oil tower, whereby light hydrocarbons in the gas are preferentially adsorbed.  Catalysts mentioned are cobalt molybdate deposited on or incorporated with a support such as alumina, a mixture of oxides of cobalt and molybdenum, especially a pelleted catalyst comprising these oxides with alumina and graphite, molybdenum oxide on alumina, a mixture of sulphides of tungsten and nickel, molybdenum sulphide.  Under the conditions of the process, cobalt and molybdenum oxides and cobalt molybdate react with hydrogen sulphide so that the oxygen is partly displaced by sulphur but this does not detract from the activity of the catalyst.  In an example, a straight-run Iranian naphtha of 150 DEG  C. end point is passed over cobalt molybdate supported on alumina at 750 DEG  F. and 50 pounds per square inch pressure with recycle of hydrogen-rich gases.  The products are cooled at the operating pressure and the desulphurized naphtha is given a light caustic soda wash to remove dissolved hydrogen sulphide.
Patent GB-497431-A (GB)
Title: Improvements in adhesive seals
IPC: G09F3/03
Filed: 1937-06-21
Abstract: 497,431. Adhesive seals. BADERNA. A., and LIZZOLI, R. June 21, 1937, No. 17263. [Class 73] An adhesive seal comprises a backing 2 of paper, fabric or wood which may be transparent, coated on both sides with layers 3, 4, of any desired thickness of heat softened adhesive, one layer, when dried, being covered with a very thin layer 1 of viscose or the material sold under the Registered Trade Mark "Cellophane," which will not liquefy below a temperature of say 120-150‹ C., the two layers of adhesive preferably being transparent and of different colours. The seals are made by stamping from a prepared sheet, and folding back the edge, which is then covered by the viscose layer. The seal is applied by a heated device which may leave a relief or intaglio impression.
Patent GB-146207-A (GB)
Title: Improvements in or relating to belt knife splitting machines
IPC: C14B1/14
Filed: 1920-06-26
Abstract: 146,207. United Shoe Machinery Corporation, (Assignees of Baxter, W. C.). June 27, 1919, [Convention date]. Stone cutting and working apparatus combined with splitting-apparatus for leather.-In a beltknife machine for splitting leather, means is provided for grinding the knife and for dressing the grinding-wheel. The knife-grinding mechanism, Figs. 9, 10, and 12, is adjustable with the feeding mechanism, but is rendered operative at will. It has means for independently and conjointly adjusting the grinding wheels transversely of the plane of the knife-band. A frame 239 is supported by the head 39 and carries an adjustable slide 247 having a cross-head, in the vertical undercut guide of which two bearings 249, 251 for the shafts of grinders 235, 237 slide. These bearings engage a right and left threaded screw 258 operated by a handle 259 through a ratchet so that they may be simultaneously brought into operation on the lower run of the knife. In the coupling of the lower bearing to the screw 258 is a sleeve 254 which is normally clamped to the bearing by a screw 252, but when freed the upper grinder is alone adjusted by operating the ratchet referred to whereas by turning the sleeve by means of a wheel 256, the handle 259 being stationary, the lower grinder alone may be adjusted. These adjustments provide for grinding knives of different thicknesses and bevel. The lower rim of the knife is supported in the vicinity of the grinders by a forked bracket 313 fastened to the machine frame which carries upon an arm at each side of the grinders blocks, between which the knife passes (the upper ones being adjustable) and which supports a channelled backing plate 327 behind the knife. This plate is adjustable by means of an abutment screw 329 on each arm of the bracket. The grinders are driven from a pulley 297, Fig. 3, on the shaft 25 through 'belt gearing 291, 287, a shaft 285 and pulleys 265, 267, 269 and 271, pulley 269 being a tensioning wheel carried by a spring-controlled slide on the slide 247 which carries the grinders. Each grinder bearing 249, 251 has lugs in which are pivoted dressing means for the grinders. These comprise dressing wheels 309, Fig. 9, on slides operated by handles 311 and carried in brackets 299, Fig. 2, which may be adjusted on their pivots by screws 305.
Patent GB-864593-A (GB)
Title: Improvements in means for reducing frictional drag in fluids
IPC: B63B1/34
Filed: 1959-05-22
Abstract: 864,593. Coating with preformed sheets. UNITED STATES RUBBER. CO. May 22, 1959 [June 23, 1958], No..17448/59. Drawings to Specification. Class 93. [Also in Group XXXIII] A thin resilient covering is applied to the fluid contacting surfaces of a body moving in a fluid to reduce its drag, any two of the thickness (T), Young's modulus (M) and hysteresis (H) varying from leading edge to trailing edge in a defined manner when the, third factor is kept constant. The hysteresis is defined by measuring the height of rebound associated with the material of the covering, and using the relation H = (100 - % rebound)/M. The Reynolds number (R) at any station of the body is computed as relative; fluid velocity multiplied by the distance of the station from the leading edge, and divided by the kinematic viscosity. According to the' invention, if T is constant. M varies from fore-to-aft proportionally to 1/R and H proportionally to 1/#R, if M is constant, T and, H vary proportionally to #R, and if H is constant, M varies proportionally to 1#R and T proportionally to 4#R. Turbulence in the boundary layer is stated to be reduced to a minimum in this way. Rubber may be used as the covering material, M being varied by using a series of covering strips of successively lower degree of cure, or less sulphur, accelerator, or reinforcing filler content, or greater softener or plasticizer content. The hysteresis may be varied by varying the type of rubber or the plasticizer. or reinforcing filler content. The length of the body is thus covered in a number of sections, the sections preferably being shorter near the leading edge where the percentage rate of change of R is greatest. The thickness may be varied by covering sections to a different thickness, as by varying the number of plies of rubber laminated together, and then obtaining a final smooth surface by moulding or grinding after a wrapped cure. The modulus may also be varied by using sponge-rubber strips of vary-, ing porosity, with a smooth unbroken external: skin. Specification 848,304 is referred to.
Patent GB-1407343-A (GB)
Title: Balances such as letter scales
IPC: G01G21/24
Filed: 1973-04-11
Abstract: 1407343 Spring balance P TERRAILLON 11 April 1973 [15 May 1972] 17463/73 Heading G1W A balance comprises a vertical plate 3 articulated to a second vertical plate 2 by parallel plates 4, 5, a load support 19 carried by the plate 3, a weighing spring 12 connected between the two vertical plates 2, 3, an extension 20 fixed to the plate 4, an arm 21 pivoted on the extension 20, an index member 24 pivotally mounted on the free end of arm 21 and co-operating with a scale 28 on a member 27, and a guide member 26 which guides the free end of the arm 21 by abutment with a pin 25 carried thereby. The index member is guided between members (26, 27) Fig.2 (not shown) and may follow a linear path as shown, or an arcuate path. The load support 6 is articulated at 19 for storage. The balance may be zeroed by means of knob 16 screw-threaded on to a rod 15. The balance apart from the spring may be made of plastics, or the plates 2, 3 may be of metal. The balance may be stabilized by a weight 30 on the base. The spring is attached to the plate 3 by means of a tongue 13 folded out of the plate, and tongue 13 co-operates with an aperture in plate 2 to limit the movement of plate 3.
Patent GB-624331-A (GB)
Title: Improvements in or relating to lever systems, apparatus incorporating lever systems and a method of fabricating lever systems
IPC: B23Q1/36
Filed: 1947-07-03
Abstract: 624,331. Weighing - apparatus. DOUGLAS, W. D. July 3, 1947, No.17539. [Class. 143] [Also in Groups XXII and XXIV] A lever system for balances and the like comprises a number of links, levers and supports linked together by elastic joints, the system being formed as a whole from one piece of material. As shown in Fig. 1, the system is cut from a piece of sheet material a, b, c, d to form the lever linkage system of Fig. 2, the main support being at 42, through pivot 11, the support 9 merely stabilizing the system. The system gives a sensitive balance for a weight F supported on lever 1, and a load P acting through pivot 14 and lever 7. The system may be moulded from thermoplastic synthetic material, and may have a varying cross-section.
Patent GB-383579-A (GB)
Title: Mechanism for removing slabs of edible fats from moulds
IPC: A01J21/02
Filed: 1932-06-21
Abstract: 383,579. Removing slabs of fat from moulds. SCHULZE, E., 14, Adolf Wagnerstrasse, Wilhelmsburg, Harburg, Germany. June 21, 1932, No. 17560. Convention date, Dec. 5, 1931. [Class 87 (ii).] In mechanism for the removal of slabs of edible fat from moulds, baseplates 3 are adapted to receive filled moulds 1 from a cooling chamber and the bottom of the mould is adapted to be bent and its sides pressed apart by an elevated portion 4 of the baseplate co-operating with a plunger 11 having a spring-operated cross-piece 13 on its underside. The elevated portion 4 extends obliquely across the plate 3. The cross-piece 13 comprises hooked and bevelled bolts slidable in tubes against springs 14, Fig. 2. The plunger is also provided with diagonally opposed buffers 31 which co-operate with the cross-piece and baseplate. The plunger is guided on columns 24 and is moved down by a lever 7. The baseplate is fixed to a lever 5 pivoted on a shaft 6 and is adapted to be swung over by levers 8, 9. The lever 7 is connected to the lever 9 by a bolt 16 sliding in a slot 15. In operation the mould 1 moves from the cooling chamber on a conveyer 2 and down an incline 28 to the baseplate. The lever 7 is then moved from position I to II to depress the plunger and back to position I to raise it, the bolt sliding so that no motion is communicated to the lever 9. The lever 7 is then moved to position III, thus swinging the plate 3 and mould 1 over and depositing the slab of fat through an open frame 17 on to a conveyer. The lever 7 is then moved to position I, a spring retaining the bolt at the head of the slot so that the plate 3 is swung back. At the same time the frame 17 is swung up by levers 20, 21 so as to tip the empty mould on to a conveyer 22. The baseplate may be provided with a headed pin 25 with its shank protruding through a hole in the plate and adapted to be knocked by a hammer 26 so as to jar the mould. The hammer is pivoted as by a flat spring in a bearing 27 such that it cannot drop down when underneath the plate 3. When the latter is swung over, the resilience of the spring keeps the hammer knocking. The mould may be provided with a protective layer 30 of rubber. One or more such knocking devices may be provided and the machine may be adapted to operate simultaneously on a series of adjacent moulds. The lever 7 may be operated mechanically or by hand, and may have a counterweight 23.
Patent GB-770844-A (GB)
Title: Improvements in or relating to ironing boards
IPC: D06F81/06
Filed: 1955-06-17
Abstract: 770,844. Ironing boards. HOOGESTEIJN, O. June 17, 1955 [June 18, 1954], No. 17561/55. Class 138 (2). An ironing board comprises at least two parts 9, 10, adjacent parts being separated from each other along a line extending in the longitudinal direction of the board, one of the parts being supported by a supporting member 3 and the other part, or each other part, being capable of being swung away from the working surface, being hingeable about an edge extending transversely of the board, and being located at the narrow end of the ironing board. When the part 10 is swung downwardly to the position seen in Fig. 2 (not shown), the part 9 may be used as a sleeve board. The part 10 is supported in its raised position by a slidable bar 11 and may be pulled tightly against the part 9 by means of a rotatable arm 12 and a wedgeshaped abutment 13 in order to avoid chinks between the parts 9, 10. The supporting member 3 comprises a leg of adjustable length. The wider end of the ironing board is adapted to be secured to a table 1 or like support by means of clamp screws 7, 8. In a modification (not shown), the ironing board is provided with two hinged portions one on each side of the stationary portion.
Patent GB-683470-A (GB)
Title: Umbrella and parasol cover
IPC: A45B15/00
Filed: 1949-07-04
Abstract: 683,470. Umbrellas. CRAIG, B. H. HUNTER-. June 26, 1950 [July 4, 1949], No. 17563/49. Class 134. A detachable cover for fitting over the fixed cover of an umbrella is made in exact replica of the fixed cover, and comprises a metal ring at the crown for encircling the umbrella stick point, and metal rings at the ends of the gore seams for encircling the umbrella rib-ends.
Patent GB-734066-A (GB)
Title: Improvements in or relating to photomechanical reproduction
Inventor: GRESHAM DONALD CHARLES
IPC: G03F5/22
Filed: 1953-06-24
Abstract: 734,066. Photo-mechanical reproduction. McCORQUODALE & CO., Ltd. May 21, 1954 [June 24, 1953], No. 17570/53. Class 98 (2). Colour separation negatives for production as of letterpress or lithographic printing plates which reduce the amount of coloured ink to be printed in areas corresponding to the black or darker shades of the original, and allow the black printing-plate only to give the required strength for such areas, are made by forming positive screen records (a) of the response of the original in one wave-band, (b) of the response of the original in another wave-band, and (c) of the black areas of the original, forming a negative record (d) by printing (b) and (c) successively in register on a single sheet of light-sensitive photographic material, and forming one of the desired negative records by printing similarly (a) and (d) in register; the records (a), (b) and (c) being made at different screen angles, as of 90 degrees for the yellow printer, 75 degrees for the magenta printer, 15 degrees for the cyan printer and 45 degrees for the black printer. Such records (a), (b)and (c) may be made by the methods of Specification 681,206, using blue, green and red filters for the colour records, any pair of which correspond to (a) and (b); and a specified exposure sequence involving the three filters for the black positive (c) from which a final black negative is made by contact printing. Record (d) is made by printing (b) and (c) from the same side of the light-sensitive material referred to, and record (e) by printing (a) and (d) from opposite sides in register. An example is directed, with reference to example 3 of Specification 681,206, to the production of a set in which the cyan, magenta and yellow negatives are corrected for colour and tone reproduction as well as for reduction of coloured ink for the black or darker areas.