baber/WOPTO huggingface dataset:
Patent GB-623848-A (GB)
Title: Improvements relating to electric motor control systems for electro-mechanical clamping means for workpieces in machine tools
IPC: B24B5/42
Filed: 1947-05-19
Abstract: 623,848. Control of D.C. motors. CHURCHILL MACHINE TOOL CO.. Ltd., and JONES, J. C. May 19, 1947, No. 13366. [Class 38(iii)] In a system for controlling the separate D.C. motors a, b operating the clamping means in machine tools, the armatures are fed from a constant voltage supply in series with adjustable resistors e, f to vary the motor torques individually and the field windings i, j are connected to a three wire D.C. supply by a switch h in series with an adjustable resistor m or n to provide overall torque variation to suit clamping and unclamping operations respectively. Interlocks may be provided to prevent rotation of the workpiece during clamping and to prevent unclamping during rotation.
Patent GB-131702-A (GB)
Title: Improvements in the Treatment of Zinc Solutions preparatory to the Recovery of Zinc by Electro Deposition.
IPC: C01G9/00
Filed: 1918-08-16
Abstract: 131,702. Electrolytic Zinc Co. of Australasia Proprietary, Ltd. Aug. 17, 1917, [Convention date]. Zinc salts.-A zine electrolyte, which may be obtained by leaching ores with sulphuric, acid, is freed from cobalt by addition of arsenic and treatment with zinc dust. Arsenious acid or sodium arsenite may, for example, be added to the solution, or arsenic ores or calcines to the unroasted or roasted zinc ore. A copper compound such as the sulphate is also added if sufficient copper is not already present. The treatment is best effected with the solution slightly acid, and at 60‹ C. Addition of the zinc dust is preferably made in stages, the first addition being sufficient to precipitate copper, cadmium, and arsenic, the second to remove most of the cobalt, and the third to complete and preserve the purification. After each addition the solution is agitated with as little access of air as possible. Before treatment, the iron is precipitated by limestone.
Patent GB-559900-A (GB)
Title: Improved method of, and means for, smoothing, polishing or similarly finishing the ends of metal pipes and tubes
IPC: B24D13/12
Filed: 1942-09-23
Abstract: 559,900. Grinding. YORK RAISING & DYEING CO., Ltd., and WAITE, V. Sept. 23, 1942, No. 13372. [Class 60] The sawn-off ends of metal tubes are smoothed by holding them in contact with a rotating mass of metal wool held in a cup shaped member 5 the internal surface of which may be threaded.
Patent GB-1341091-A (GB)
Title: Multiple phase shift registers
IPC: G11C19/18
Filed: 1971-05-05
Abstract: 1341091 Shift register ROCKWELL INTERNATIONAL CORP 5 May 1971 [6 July 1970] 13390/71 Heading G4C A multiple clock-phase shift register includes a first half-bit stage 41 which comprises an output 43 loaded by a storage capacitance 81, a load field-effect transistor 46 gated by a first phase clock signal ° 1  for precharging the capacitance, a two-terminal logic network 55 comprising at least one field-effect transistor 57 whose gate is connected to the stage input 45, and an isolation field-effect transistor 51 connected between the output 43 and terminal 54 of the logic network for isolating the output from terminal 54 during phase °1, and for connecting the output and terminal 54 during phase °2, the other terminal 59 of network 55 being connected to a third clock phase °3. Each full register stage comprises two such half stages, e.g. 41, 42 the half-stages being similar but with some re-arrangement of clock signals. The arrangement allows a multi-tiered shift register, Fig. 6 (not shown), i.e. a register having further series of half stages arranged above and/or below the illustrated half stages, to be constructed with corresponding half stages in adjacent tiers sharing a load transistor. The arrangement is especially suited to manufacture as an integrated circuit (Fig. 4, not shown).
Patent GB-1063046-A (GB)
Title: Process for producing single-oriented silicon steel sheets having a high magnetic induction
IPC: C22C38/02
Filed: 1964-04-01
Abstract: A process for producing single-oriented silicon-steel sheets having a high magnetic induction comprises hot-rolling an ingot to form sheet (1.5-5 mm. thickness, if only one cold-rolling stage is to follow), annealing the sheet between 950-1200 DEG C. for 30 seconds to 30 minutes so that more than 0.002 per cent N. as AIN. may be deposited in the sheet, cold-rolling the sheet to reduce the thickness by 81-95 per cent, decarburizing the sheet by decarburizing annealing and then finish-annealing the sheet above 1000 DEG C. for at least 5 hours, the ingot-alloy having the following composition, percentages by weight:  .Si.2.5-4.0 .C.0.025-0.085 .acid-soluble.Al 0.01-0.065 .S.0.005-0.05 .Fe.and impurities the remainder  Carbon losses of about 0.001-0.005 per cent during hot-rolling are referred to.  When two or more cold-rolling stages are included, the ingot is hot-rolled to 1.5-7 mm. thickness and pickled.  The initial cold-rolling stage or stages reduce the sheet by 5-40 per cent and may be followed by initial annealing stages.  Example 1. An ingot alloy with the following percentages:-  .Si.3.02 .C.0.04 .acid-soluble Al.0.03 .S.0.03  was bloomed, hot-rolled and then annealed in a hydrogen atmosphere at 1,050 DEG C. for 5 minutes. Cold-rolling with a reduction of 89 per cent followed, after which the sheet was decarburized in wet hydrogen at 800 DEG C. for 5 minutes and then annealed in hydrogen at 1200 DEG C. for 20 hours.  Other examples are given, and in Fig. 2 (not shown) are plotted the magnetic characteristics of a large number of examples having different S and acid soluble Al content, but the same Si (3 per cent) and C (0.04 per cent) contents. The variations in magnetic characteristic produced by different rolling schedules are plotted in Fig. 3 (not shown) for the following alloy:  .C.0.04 .Si.3.02 .acid-soluble Al.0.031 .S.0.03 The variations in magnetic characteristics produced by different annealing temperatures between 800-1300 DEG C. before final cold-rolling are plotted in Fig. 6 (not shown) for the following alloy .C.0.038 .Si.3.0 .acid-soluble Al.0.03 .S.0.028 In this case the ingot was bloomed and hot-rolled to 3 mm thickness, followed by a first cold-rolling reduction of 30 per cent.  The examples were then annealed in a hydrogen atmosphere for 5 minutes each at the various temperatures before being cold-rolled with a reduction of 85.7 per cent. De-carburizing annealing at 800 DEG C. for 5 minutes followed and then final annealing at 1200 DEG C. for 20 hours in a neutral or hydrogen atmosphere. Annealing before the final cold-rolling may be carried out in a neutral atmosphere, or one containing Ar, or at least 10 per cent N.  De-carburizing annealing may be carried out in wet hydrogen at 750-850 DEG C.  In a further example, the sheet was pickled before final annealing, and in another a first cold-rolling reduction of 30 per cent was followed by a first annealing at 900 DEG C. for 2 minutes and by a second cold-rolling reduction of 30 per cent.
Patent GB-1068793-A (GB)
Title: A process for the manufacture of vinyl chloride
IPC: C07C17/08
Filed: 1965-03-30
Abstract: Vinyl chloride is made from hydrocarbons by a process comprising: (a) forming a pyrolysis gas containing acetylene, ethylene, CO2, CO, CH4, H2 and other gases by pyrolysing the hydrocarbon;  (b) removing carbon and tarry matter and higher unsaturated hydrocarbons containing more than 3 carbon atoms from the pyrolysis gas;  (c) reacting the acetylene in the gas resulting from (b) with HCl gas and separating the vinyl chloride thus formed;  (d) reacting the ethylene in the residual gas from (c) with chlorine and separating the dichloroethane thus formed; and  (e) thermally decomposing the separated dichloroethane to form vinyl chloride and HCl gas, the HCl gas obtained in (e) being recycled and used for reaction in (c), the residual gas from (d) being recycled and used as a fuel for the pyrolysis (a), characterized by not separating carbon dioxide from the initial pyrolysis gas and adding hydrogen as an additional fuel for combustion with oxygen in step (a), the hydrogen being added in quantities such that the ratio of the total heat of combustion of additional hydrogen to the total heat of combustion of the residual gas from (e) is from 0.05 to 1.0. It is preferred to effect step (c) in the presence of a mercuric chloride/active carbon hydrochlorination catalyst and to wash the pyrolysis gas with water and kerosene.  Petroleum naphtha is the preferred hydrocarbon.  The effect of the additional hydrogen on the yields is illustrated by reference to graphs (not shown).
Patent GB-1459563-A (GB)
Title: Photopolymerizable compositions and recording materials incorporating them
IPC: C08F255/02
Filed: 1974-03-26
Abstract: 1459563 Photopolymerizable compositions FUJI PHOTO FILM CO Ltd 26 March 1974 [27 March 1973] 13483/74 Heading C3P [Also in Division G2] Photopolymerizable compositions comprise a chlorinated polyolefin binder, a monomer having at least one polymerizable ethylenic bond, and a photoinitiator. The binder is suitably a chlorinated polyethylene or chlorinated polypropylene and the monomer may be an acrylic or methacrylic ester (e.g. a triacrylate or trimethacrylate of trimethylolpropane, pentaerythritol, glycerol or diglycerol, or the dimethacrylate of pentaerythritol), an acrylamide compound, a vinyl ether, an allylic compound, a vinyl ester, an N-vinyl compound, a styrene compound, a crotonic acid ester or a mixture thereof. The photoinitiator-may be a conventional carbonyl, organic sulphur, peroxide, azo, diazo or active halogen compound, or a redox system or a photoreducible dye. Optional additives include thermal polymerization inhibitors, colouring agents, plasticizers, and resins (additional to the required binder). The compositions are useful in the production of printing plates, printing masters, photoresists and printed circuits.
Patent GB-385193-A (GB)
Title: Improvements in or relating to the backing and headbanding of round back books
IPC: B42C9/02
Filed: 1932-05-10
Abstract: 385,193. Endless-chain conveyers. JACKSON, L. MELLERSH-, 28, Southampton Buildings, London.-(Sheridan Co., T. W. & C. B. ; 135, Lafayette Street, New York, U.S.A.) May 10, 1932, No. 13496. [Class 78 (i).] In a bookbinding process the books are carried from one machine to another in clamps 31 which travel in a closed orbit in fixed upper and lower guide rails 30. Each clamp 31 may comprise a fixed inner member 32 and a movable outer member 33 which is guided for movement against spring- action on rods 34. Hinge-studs arranged between the clamps engage and travel in the guide rails 30. The books travel intermittently, stopping at each machine, and each clamp is opened at 38 at the delivery point and closed at the in-feed point 39. The clamp train is power-driven from a main shaft 44 through a large sprocket-wheel 42 and a mechanism 43 of the Geneva-motion type. The in-feed mechanism for feeding the books to the clamp-train is of the chain-conveyer type comprising side bars 58, running along the level from in-feed tables 54, 55 adapted to be used for hand-feeding, followed by similar inclined side bars 59, hinged at 60, extending to the in-feed point. Supported above each of the side bars 58 are side-plates 62, and similar plates 63 are attached to the bars 59, the outer plates being adjustable to suit the width of the books. The outer plates 63 can be swung outwardly about hinges 64 in case of displacement, congestion, &c. of books in the shoot. The books are supported on adjustable bottom guides and fed along the shoot preferably by two endless sprocket-chains 75, connected together by cross pins spaced to conform with the spacing of the book clamps, so that each pin may force a book into the proper clamp. The pair of chains are driven from a countershaft 85 receiving motion from the main shaft 44. The bottom adjustable guide in the inclined portion of the shoot is connected at its upper end by a link 87 with a flat receiving-plate 88 upon which each book levels itself when carried forwardly from the in-feed chain by the rear rod of a clamp. The plate 88 is supported above a bracket 90 on the side bars 59. The inclined part of the shoot is supported on toggles 91, 92 so that it may be dropped bodily about the pivot 60 to give access in case of jamming &c. Each clamp in the train is closed upon its book B when the latter is resting on the plate 88 and wholly engaged by a book reshaping device 95. The reshaping device 95 acts progressively upon the advancing book between two stopping positions and before the book is clamped.
Patent GB-135116-A (GB)
IPC: F02P17/00
Abstract: 135,116. Pinneo, C. F. April 22, 1919. Testing and indicating.- A spark gap 25, 26 is arranged in series in the circuit of each plug, but is short-circuited except when the ignition is to be tested by means of a sliding bridge-piece. Each gap is mounted in a casing 19 of insulating material having one end 27 of transparent material.
Patent GB-577199-A (GB)
Title: Improvements in or relating to cleats for the road wheels or endless tracks of tractors or other vehicles
IPC: B60B15/00
Filed: 1944-07-14
Abstract: 577,199. Endless-track vehicles. WEBB, D. G. July 14, 1944, No. 13527. [Class 79 (i)] [Also in Group XXXIV] Cleats for use on endless tracks of tractors and other vehicles are formed of rubber or other resilient blocks 1 with embedded perforated metal strips 2 extending from the base of the block to about three-quarters of its height. The rubber &c. block is vulcanized to anglebars 5, 6, or channel-section shoes, adapted for attachment to the track-element 4. The cleats are fitted transversely or, as shown in Fig. 2, in staggered chevron fashion.
Patent GB-202380-A (GB)
Title: Improvements in automatic steam-traps
IPC: F16T1/14
Filed: 1922-05-15
Abstract: 202,380. Thivolle, J. L. May 15, 1922. Steam traps.-Relates to steam traps of the kind comprising a receptacle 3 divided into two compartments 11, 11<1> by a flexible diaphragm 9 which is moved upwardly by excess of pressure arising in the lower compartment 11 so as to open the valve 5 controlling the discharge outlet 4. According to the invention, the pressures in the chambers 11, 11<1> are initially equalized through a communicating passage 7 in the valve spindle 6 having a lateral opening 8, the communication being broken when the condense water reaches a level A-B in the trap and seals the opening 8, after which excess of pressure is created in the lower chamber 11 owing to condensation in the chamber 11<1>, but the diaphragm 9 is not operated until the water in the passage 7 reaches a predetermined level C-D, representing a corresponding difference of pressure in the chambers 11, 11<1>. Modified constructions are described in which the cover 10 of the chamber 11<1> is located inside the receptacle 3, in which the valve spindle is solid and the passage 7 is formed in the wall of the receptacle 3, and in which the communicating passage lies outside the receptacle 3.
Patent GB-772241-A (GB)
Title: Improvements in or relating to chimney throat blocks
IPC: F24B1/191
Filed: 1954-05-10
Abstract: 772,241. Chimney throat blocks. FYRESIDE, Ltd., and WILSON, P. Aug. 4, 1955 [May 10, 1954], No. 13628/54. Class 126 A chimney throat block having a flue passage and resting on a fire brick back is wider than the fire brick back both in front and at the back of flue passage so as to provide projecting lintel portions which may be supported by the chimney breast. The throat block may have lateral extensions, or hooks for reinforcing rods which project beyond the sides and around which extensions may be cast to form a lintel. The block is of such form that it rests on the top of fire brick back and cheeks 20, 21 with its outer faces flush with those of the fire back. Rods 27, 28 extend through the block at the front and back of the flue passage to form reinforcements for lintels 29 made of concrete cast round the rods 27, 28 in cut away parts of the chimney breast. The rods may be replaced by lintels 31 formed integral with the block, Fig. 6. Downwardly depending hooks or eyes 30 are grouted into holes formed in the block to support a fire guard or blower. A damper may be located in the flue passage as described in Specification 772,240 and the front face of the block may fit closely against the back of a surround as described in Specification 772,239.
Patent GB-969171-A (GB)
Title: Card advancing mechanism
IPC: G06K13/063
Filed: 1963-04-05
Abstract: 969,171. Selective punching machines. SPERRY RAND CORPORATION. April 5, 1963 [April 24, 1962], No. 13682/63. Heading B4B. [Also in Divisions B6 and G4] Apparatus for feeding cards step-by-step past a punching station comprises a plurality of flexible blades or fingers 14 of spring steel, projecting from the underside of a reciprocating carriage 16, said carriage reciprocating through a distance slightly more than that through which the card is to be moved at each step, whereby each blade in turn engages the rear edge of the card. The carriage is suspended above the table by four flexible strip members 20 and reciprocated by a pair of arms 68. Said arms are driven by eccentrically mounted pins 62 at each end of a rotating shaft 60 and are secured to the carriage by flexible strips 72. Clamping bars 24, 26, and 30, 32, securing the members 20 to a support 22 and the carriage 16 are rounded at the points 40 to avoid undue stressing of the members 20 at these points. The support 22 is suspended from the machine frame by springs 80 and is raised and lowered to move the device between an inoperative position in which the fingers are clear of the table top, and an operative position in which the fingers engage the table top, by means of a pivoted lever 126 connected at one end to the support and at the other end to the armature 134 of an electromagnet, Fig. 1I (not shown). In an alternative arrangement, a bar 164 of magnetic material is secured to the upper surface of the carriage 16<SP>1</SP>. Two reciprocating arms 68<SP>1</SP>, eccentrically mounted on a constantly rotating shaft 60<SP>1</SP>, are suspended by springs 162 and are connected at their forward ends by the core bar 166 of an electromagnet 168. A second electromagnet 170 is fixed to the machine frame. In operation, energization of the electromagnet 168 places the reciprocating arms 68<SP>1</SP> in driving relationship with the carriage, while energization of the electromagnet 170 moves the carriage out of contact with the arms 68<SP>1</SP> and holds the carriage in its inoperative position. The card is fed initially to a position beneath the carriage by co-operating rollers 11, the lower roller projecting through an aperture 10a in the table 10 and being recessed at 11a so that the rollers only feed intermittently.
Patent GB-544140-A (GB)
Title: Electrical wave filters including trap circuits
IPC: H03H7/01
Filed: 1940-09-03
Abstract: 544,140. Impedance networks. HAZELTINE CORPORATION. Sept. 3, 1940, No. 13807 . Convention date, Sept. 29, 1939. [Class 40 (iii)] A filter having a single pass band includes trap circuits tuned to frequencies just outside the band and is built up of half-sections such as that between the terminals 9, 9 and 10, 10, Fig. 5a, having a series arm L15 and a shunt arm L14 whose impedances are of the same sign (in this case both inductive) in the pass band, and having also a tuned (in this case acceptor shunt) arm L16, C16 which is of opposite sign (in this case capacitive) in the band, and is tuned to frequencies just outside (in this case just above) the band. Fig. 5a shows a similar half section in which a rejector series trap arm L7, C7 is tuned to frequencies just below the band. At the terminals 10, 10 both half-sections, which are matched to one another, have an image-impedance characteristic, Fig. 1c, which falls from infinity at the lower cut-off frequency to zero at the higher cut-off frequency. The Specification describes various modifications which are derived by coalescing adjacent arms or, as in Fig. 5e, replacing adjacent inductances by a transformer T. In order that the tolerance of external shunt capacity may be large, the filter terminates in shunt capacitances C20 which may consist in part of the internal capacitances of thermionic valves. A modification, Fig. 4e, comprises three tuned circuits coupled together.
Patent GB-1039719-A (GB)
Title: Adjustable back seats
IPC: F16C29/10
Filed: 1965-04-01
Abstract: 1,039,719. Adjustable seats. ROCKWELLSTANDARD CORPORATION. April 1, 1965 [June 22, 1964], No. 13825/65. Heading A4J. [Also in Division E2] A seat back 14 is tiltable into a reclining position relative to a seat 12 about an axis 30. An intermediate rail 18 is provided so that back 14 may be folded on to seat 12. The height of back 14 may be varied relative to seat 12 by adjustable stops 36. An adjuster 16 of adjustable length is pivoted at 50 to seat 12 and at 44 to back 14. Adjuster 16 consists of a tension member 48 slidably guided in a housing 40 and locked in adjusted position by lock plates 92, Fig. 6 (not shown). Each plate 92 has a central aperture 94 slightly larger than the diameter of tension member 48. A spring 98 bears in a guide plate 74a, fixed to housing 40 and against lock plates 92. A fulcrum pin 96 extending across housing 40 tilts plates 92 into frictional locking engagement with tension member 48. Plates 92 may be released from locking engagement by a cam member 102 actuated by a pull wire 116.
Patent GB-934744-A (GB)
Title: Sonobuoy apparatus
IPC: H04B1/034
Filed: 1962-04-10
Abstract: 934,744. Batteries. WESTINGHOUSE ELECTRIC CORPORATION. April 10, 1962 [May 19, 1961], No. 13852/62. Class 53. [Also in Groups XXXVIII and XL (c)] In an apparatus for frequency-modulating in response to underwater sound waves, a radiofrequency signal provided by a plurality of tunnel diode oscillators coupled to a common resonant cavity (see Group XL (c)) the oscillators are energized by respective sea water batteries formed by the cylindrical casing 10 of the apparatus which forms a common electrode and is separated by an insulating sleeve 20 from the other electrodes 71 to 78, the sleeve 20 leaving a portion of the casing 10 exposed to the sea water. The casing 10 may be composed of or coated with zinc or nickel and the plates 71 to 78 may consist of copper or silver. Alternatively, the case 10 could be of copper and the electrodes 71 to 78 of aluminium.
Patent GB-419378-A (GB)
Title: Improvements relating to time-temperature controlling mechanism
IPC: G05D23/12
Filed: 1933-05-12
Abstract: 419,378. Clockwork-actuated valves. GAUSDEN, A. H., 1, St. Margarets Road, Hooley, Coulsdon, Surrey. May 12, 1933, No. 13861. [Class 135.] A time-temperature controller for domestic and industrial appliances is actuated by a clockwork mechanism set in motion thermostatically at a predetermined starting temperature and stopped automatically on the expiration of a predetermined time means being provided to maintain a predetermined temperature. The Figures show the invention applied to the actuation of the gas valve for a domestic oven. The main gas cock 2 is adapted to be moved into its open position by a spring loaded handle and is retained in this position by a spring pressed catch 30 engaging a lip on a disc 31. The disc 31 has a cam surface adapted to operate a lever 33 to engage a pin on a rotatable member 22 so that as the cock is opened, a brake pad 24 on the member 22 engages the balance wheel 27 of the clockwork to stop the clock. At starting the member 22 is held in this position by a pivoted catch 20 held by an adjustable abutment 17<a> operated by the thermostat. On the required temperature being attained the catch 20 is released and the member 22 is rotated by the spring 25 to start the clockwork which slowly rotates a plate 28 from an initial position adjusted by an external knob to a position in which a projection 28<a> engages the catch 30 which it operates to permit the main valve to be closed by the spring 37. The thermostat acts through a bell-crank lever 12 and adjustable tappet 15 to move a piston valve 20 slidably mounted in a bore in the main cock. When applied to electrical apparatus a rotary switch replaces the plugcock.