baber/WOPTO huggingface dataset:
Patent GB-515669-A (GB)
Title: Process of and apparatus for the activation of chemical reactions
IPC: C02F1/467
Filed: 1938-02-28
Abstract: 515,669. Electrolysis. PLAUSON, H. Feb. 28, 1938, No. 6284. Void. Convention date, March 17, 1937. [Class 41] [Also in Group III] Chemical reactions are promoted by passing the reacting substances in the state of an aerosol, emulsion, or dispersion through a capillary electrode to which a potential sufficient to produce ions is applied. The process differs from electrolysis in that the ions produced are only sufficiently numerous to serve as catalysts for the reaction. Fig. 2 illustrates the application of the invention to a liquid phase reaction, e.g., the oxidation of vaseline oil to fatty acid. A mixture of vaseline oil and hydrogen peroxide in reservoir 21 is circulated by pump 9 until a fine dispersion is obtained ; it is then pumped through capillary electrode 5 and the product is withdrawn through hollow electrode 5a by pump 24, and may be recirculated. The electrodes are immersed in an electrolyte which may be 20-30 per cent. nitric acid containing a little sulphuric acid and preferably an oxidation catalyst such as ferric chloride. Gas reactions may be effected in the apparatus shown in Fig. 3. The reacting gases, e.g., acetaldehyde vapour and oxygen are admitted through capillary electrode 5 and withdrawn by pump 24 which maintains the requisite vacuum. Small amounts of nitric oxide are added to increase the yield. A potential of 500-1,500 volts is applied to the anode 5 and cathode 99, and high frequency oscillations may be simultaneously applied by the lines 45, 50. In another modification a #-ray tube is affixed to the reaction vesse1 at the end 63 and an annular cathode mounted on the inner tube 4 is employed. In another modification both the electrodes are of capillary structure. The invention is applicable to numerous types of reaction such as oxidations, reductions, condensations, hydrations, dehydrations &c. Specific mention is made of the oxidation of acetylene to acetaldehyde and thence to fatty acid, the synthesis of nitric acid, sulphuric acid, and hydrogen peroxide, the chlorination of acetylene and vinylacetylene, the hydrogenation of oleic acid and of vinylacetylene.
Patent GB-483943-A (GB)
Title: Improvements in and relating to intaglio printing plates
IPC: G03F5/20
Filed: 1937-03-03
Abstract: 483,943. Photo-mechanical printing- surfaces. BURGESS, A. F. (Paper Patents Co.) March 3, 1937, No. 6322. [Class 98 (ii)] An intaglio-printing plate or roller having ink holding recesses of uniform depth and varying in area in accordance with the tone values of the original, separated by lands of width inversely proportional to the area of the recesses, is produced by etching the printing- surface through a resist having a dot pattern obtained by exposing a sensitive surface behind a conventional half-tone screen using a cruciform lens stop the arms of which are narrow in relation to their length and are arranged diagonally to the lines of the screen. Fig. 4 shows the method of producing a positive transparency for the process. The sensitive surface P is exposed behind a half-tone screen S in a camera provided with a stop C as shown in Fig. 6. The negative N is mounted in front of a white background B illuminated by lamps L. In printing the resulting positive onto a roller, the positive 6, Fig. 7, is traversed past an illuminated slit in contact with the sensitive surface of the roller 5. The use of carbon tissue is also referred to. The dot pattern is in the form of squares with indented sides which will produce square recesses when etched.
Patent GB-608804-A (GB)
Title: Improvements in or relating to electric current measuring arrangements
IPC: G01R1/30
Filed: 1946-03-01
Abstract: 608,804. Converting; automatic control systems. GENERAL ELECTRIC CO., Ltd., and THOMPSON, W. G. March 1, 1946, No. 6404. [Classes 38 (ii) and 38 (iv)] Current.-In order to measure direct current in a circuit subject to current reversal, two resistances are arranged in the circuit, each associated with a rectifier, and the rectifiers are arranged in effective opposition to supply a common resistive load or to provide a unidirectional voltage. Fig. 1 shows the invention applied to control of a mercury vapour rectifier 1 and inverter 2 connected between an A.C. supply and a D.C. motor 10. In series with the motor are resistances 8 and 9 across which are connected, in opposition, the rectifiers 14 and 15. A centre tapping between resistances 8 and 9 and the junction point of rectifiers 14 and 15 are connected by resistance 16, the P.D. across which is a measure of the motor armature current, but is of constant polarity independently of the direction of flow of the motor current. Battery 13, resistance 18 and valve 17 are connected to resistance 16 as shown, so that the P.D. across resistance 18 is a measure of motor current. In a modification, resistances 8, 9 and 18 are connected, as in Fig. 2, to a double triode valve (or two separate triodes) combining the functions of rectifiers 14-15 and of valve 17. Resistances 6 and 7 in the connection between devices 1 and 2 are connected to valve 11, resistance 12 and' battery 13 so that the P.D. across resistance 12 is a measure of that across 6-7 and hence depends on both the circulating current between the devices 1 and 2 and the motor current. The difference between the P.D.'s across resistances 12 and 18 is thus a measure of the circulating current alone and can be used to actuate grid control means for keeping this current constant.
Patent GB-1089424-A (GB)
Title: Machine for sealing packages
IPC: B65B7/28
Filed: 1965-02-15
Abstract: 1,089,424. Packaging-machines. GORDON JOHNSON CO. Feb. 15, 1965 [Feb. 13, 1964], No. 6406/65. Heading B8C. In a machine for sealing together the peripheral flanges (202, 204), Fig. 7 (not shown), of two superimposed shaped thermoplastic packaging sections (206, 208), between which an article has been placed, the package is sealed between two relatively movable heated members 32, 166, Fig. 2, while it is supported on a vertically reciprocable platen 64. The unsealed package is fed on to the platen 64 by a platform 84, which moves along a track 94 itself pivotable about a horizontal axis. As the platform approaches the platen, the track is pivoted in an anticlockwise direction to bring the platform above the platen. When directly above the platen, the platform is pivoted down. Its supporting surface is formed by spaced fingers 88, Fig. 3 (not shown), which are received in corresponding slots 89 in the platen to leave the package supported on the platen. The platform is then withdrawn and the platen moved downwards into a receptacle 52, Fig. 5 (not shown). The receptacle is located within a heated die 32 and biased by springs 62 in an upward direction. Simultaneously with the downward movement of the platen, a corresponding receptacle (192), Fig. 5 (not shown), and heated die 166 are moved downwards on to the upper surface of the package, the edges of the receptacles (192) 52 engaging the periphery of the package, while the flanges, extending beyond the receptacles, are heat sealed together between the dies, the heat causing the seal to shrink at the periphery, Fig. 8 (not shown). The upper die assembly and the platen are then moved upwards, the sealed package being removed from the platen by the ends of the fingers 88 as a subsequent package arrives for sealing. The packages are placed manually on the platform 84 between stops 212, 214.
Patent GB-540297-A (GB)
Title: Improvements in crank shafts
IPC: F16C3/12
Filed: 1940-04-09
Abstract: 540,297. Crank shafts. AKTIEBOLAGET GOTAVERKEN. April 9, 1940, No. 6424. Convention date, April 12, 1939. [Class 80 (ii)] A crank shaft for an engine having opposedmotion pistons is built up of elements each comprising three crank pins 1, 2, 3, Fig. 1, and having at its ends flanges 6, 7 by which the element is connected to corresponding flanges 8, 10 of adjacent elements, the pairs of attached flanges forming trunnions for roller bearings 9, 11. The flanges are connected by bolts 18 screwed into sockets 19, which are fitted in borings in the flanges. In a modification, the flanges are connected by bolts 29, Fig. 2, each of which passes through a bushing 28 in one flange, and screws into the other.
Patent GB-1037943-A (GB)
Title: Process for producing nonoriented silicon steel sheets
IPC: C22C38/02
Filed: 1963-02-19
Abstract: Non-oriented silicon-iron sheets are produced by first hot-rolling a material containing in percentage by weight .Al.0.5-1.5 .Si.1.5-3.5 the balance being iron and unavoidable impurities and the sum of the Al and Si contents lying within the range 2.5-4.5%.  The hot-rolled sheets are then cold-rolled one or more times with a reduction rate of 50-85% and finally annealed at 1000 DEG -1100 DEG C. for 5-40 hours.  When more than one coldrolling step is employed, the sheet is intermediately annealed at 750 DEG -950 DEG C. for 3 minutes to 1 hour in a reactive, i.e. decarburizing, or a neutral atmosphere. The alloy may be initially prepared by melting under argon in a high frequency furnace, followed by holding under vacuum; hot rolling may commence at 1150 DEG -1250 DEG C. and finish at 850 DEG -950 DEG C.
Patent GB-429530-A (GB)
Title: Improvements in or relating to electric switches
IPC: H01R13/707
Filed: 1934-03-05
Abstract: 429,530. Plug couplings combined with switches. WALSALL CONDUITS, Ltd., MILLARD, A. E., and STEVENS, A. H., Excelsior Works, West Bromwich, Staffordshire. March 5, 1934, No. 6876. [Class 38 (i)] A switch comprising a spindle 6 carrying contact arms 7 is interlocked with a coupling 12, 13 so that the switch can be closed only when the coupling is engaged and may then lock the coupling in place. A catch 23 on the switch spindle is held by a detent 22 against movement to close the switch, the detent forming one end of a lever 19 associated with a rod 27 carrying a knob 30 for manual operation against a return spring 31. A plunger 33 arranged partially within the coupling member 12 lies in the path of a tail-piece 24 attached to the lever 19 and prevents operation of the switch-release knob 30 until the counterpart 13 is inserted in the member 12 when the skirt 15 depresses the plunger 33. On operation of the knob 30, the tail piece then enters a hole 32 in the skirt 15 and locks the counterpart 13 in the member 12. When the switch is closed, the catch 23 lies beside the detent 22 and so prevents the spring 31 from moving the rod 27. This rod may also enter a hole in a bracket 38 on the cover of the switch casing so that it cannot be opened when the switch is closed.
Patent GB-285264-A (GB)
Title: Improvements in or relating to draw-off taps for drums or other containers
IPC: B67D3/04
Filed: 1927-06-30
Abstract: 285,264. Robinson & Co., Ltd., F., and Robinson, G. A. June 30, 1927. Dual-closure valves.-In a draw-off tap for drums and like containers comprising a flanged pipe, such as 1, having a screw-threaded extension formed with an outlet aperture 2 and fitted with a screw-on cap 3, the main closure is arranged to be effected as the cap is being screwed on prior to a final sealing action by the cap seating against a rubber &c. washer 4 disposed on the body flange 5. In one form the cap is internally screwed and carries a close-fitting plunger closure member 6 which effects the preliminary closure. In a second form the inner member is in the form of a screwed stem 7 which moves forward over the discharge aperture 2 for the first closing action. Pins or other appropriate stops may be provided to prevent the cap from being entirely removed from the valve body.
Patent GB-1485553-A (GB)
Title: Voltage supply system for a television receiver
IPC: H02M3/335
Filed: 1975-02-19
Abstract: 1485553 D.C.-D.C.-converting RCA CORPORATION 19 Feb 1975 [27 Feb 1974] 7043/75 Heading H2F [Also in Division H3] In or for a television receiver selectively operable from A.C. line or from a battery 39, a D.C. voltage supply system comprises a deflection current generator 20, a first winding 30c coupled to the deflection current generator for having voltages induced therein, a rectifier 32 coupled to said winding 32c for rectifying said voltages, switching means 60 for coupling winding 30c and the rectifier 32 to storage means 37 so that when operating from A.C. line, a voltage is provided equal to that of the battery 39, the switching means 60 being arranged so as to prevent current flowing in said winding 30c when operating from battery 39. The invention thus reduces power consumption when operating from a battery 39. A.C. line operation.-Switch 60 is set to its left-hand position, so that the A.C. voltage is passed via transformer 70, rectified at 61 and passed via an isolating diode 66 to point E on the horizontal deflection transformer 30. The voltage induced in winding 30c during the trace interval is rectified at 32 and charges capacitor 37 so as to provide D.C. supply to other receiver circuits (not shown). The voltage across winding 30d is also rectified by diode 36 and provides a further D.C. supply at point A. Battery operation.-Switch 60 is set to its right-hand position so that battery 39 supplies power to the deflection system via diode 31. Diode 32 is reverse biased so that winding 30c is not used, thus minimizing losses.
Patent GB-361762-A (GB)
Title: Improvements in and relating to means for obtaining current from a high tension transmission line for operating instruments
IPC: H02M5/08
Filed: 1931-03-07
Abstract: 361,762. Supplying consuming devices. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. -(Assignees of Vrooman, E. C.; 1, River Road, Schenectady, New York, U.S.A.) March 7, 1931, No. 7144. Convention date, March 7, 1930. [Class 38 (iv).] Relates to a method of supplying current to a neon tube 19 or other electrical apparatus from a H.T. line 13 by shunting the apparatus to be supplied across one of a string of insulators 14 that supports the line, the insulators acting as condensers, and consists in making the insulator 15 across which the apparatus is shunted of smaller capacity than the others. The insulator 15 is located in the string next to the support 10 which is earthed. Specification 356,524 is referred to.
Patent GB-416083-A (GB)
Title: Improvements relating to rotary kiln plants
IPC: F27B7/40
Filed: 1933-03-09
Abstract: 416,083. Rotary kilns. FASTING, J. S., 9, Monrads Alle, Copenhagen. March 9, 1933, No. 7228. [Class 51 (ii).] In a rotary kiln plant for burning cement &c. having at the discharge end a cooler consisting of a gas permeable support for a layer of hot material through which support and layer cooling air is passed, the support faces the end portion of the kiln shell as part of an enclosing wall or casing which does not rotate with the kiln. In the construction shown the support 3 is concentric with the kiln and the material is moved along it by blades 5 mounted on shell 10 carried by the kiln. The material is distributed in an even layer over the support by scoops 4 and may be agitated by projections or harrows which dig into the layer. Lumps are crushed between the end of the kiln and an inclined surface 8. Modifications are described in which the support takes the form of travelling and stepped grates, and a shaker conveyer.
Patent GB-540387-A (GB)
Title: Improvements in or relating to stands for motor-bicycles and the like
IPC: B62H1/02
Filed: 1940-04-23
Abstract: 540,387. Motor-cycle supports. MARCHANT, W. D., and MOTOSACOCHE SOC. ANON. April 23, 1940, No. 7306. [Class 136 (i)] A stand capable of supporting the machine at two different heights from the ground comprises a pair of bell crank levers pivoted on a spindle 3, one arm 5 of each lever having a shoe 6 for engagement with the ground and the other and longer arm 7 having a lateral extension 8 for engagement by the foot. The stand supports the machine at the lower level in the position shown. To raise the machine to the higher level it is pulled back, the stand pivoting about the spindle 3 until the arms 5 abut stops 9, when the machine rests on the arm 7. The stand is held in the inoperative position by springs, spring clips, &c. or by a spring-pressed ball 11 which engages a cup 10 formed in the stand. The arms 5 and 7 may be joined to form triangular frameworks, and may be joined to the arms on the other side of the machine by cross-pieces.
Patent GB-1161376-A (GB)
Title: Apparatus for Imparting Rhythmical Angular Motion to a Human Being
Inventor: NEAL MARY VIRGINIA
IPC: A61G11/00
Filed: 1968-02-14
Abstract: 1,161,376. Beds. M. V. NEAL. 14 Feb., 1968, No. 7340/68. Heading A4J. In order to provide the correct stimulation of the organs of balance of a premature baby, housed in an incubator, a hammock 464 is detachably pivotally supported for rocking in a transverse yoke 470, carried, for rotation about a vertical axis, by a journal 472. An electric motor 431, or other power or manual drive means, rotates a spur gear 447, which meshes with a gear ring on a disc 445. A crank pin on disc 445 drives a connecting rod 404, which oscillates arm 418, about fixed pivot 416. Rod 404 swings crank arm 478 and simultaneously reciprocates and rotates rod 410. Cord 401 is connected to one end of the hammock frame 466 and provides a rocking or pitching motion in synchronism with the reciprocation of rod 410, while the frame is simultaneously swung about the vertical axis of journal 472. In another form, the cord 401 is replaced by a rod (100, Figs. 5-12, not shown).
Patent GB-937386-A (GB)
Title: Apparatus for transferring and cutting filaments in continuous bobbin winding machines
IPC: B65H67/056
Filed: 1961-02-28
Abstract: 937,386. Winding machines; thread guides. MONSANTO CHEMICAL CO. Feb. 28, 1961 [March 8, 1960], No. 7341/61. Class 120 (2). A thread-winding machine comprising a pair of bobbin supporting spindles 12, 20, Fig. 1, on arms 14, 22 that pivot about a common axis 16, includes thread-engaging members 26, 28 mounted on the adjacent ends of the spindles for engaging the thread as it is transferred from one bobbin to the other, there being a helically-shaped panel 46, Fig. 4, between the members 26, 28 to guide the thread down into notches 36, Fig. 5, formed in the members 26, 28 to cause the thread to be placed close to the periphery of the empty bobbin. The package 11, formed on one bobbin 18, and the empty bobbin each press against driving drums such that the take-up speed of the package 11 and the empty bobbin 18 are equal, with the result that the member 28 for the empty bobbin rotates at a greater speed than the member 26 for the wound bobbin. The resulting relative movement of the members 26, 28 draws the thread against a cutting edge 42 on the member 26 for the wound bobbin, for example as at B in Fig. 5. The members 26, 28 may have spline fittings so that they can be detached from the spindles 12 and 20 when it is desired to remove a bobbin. When a package 11 has been completed a thread guide 50 is manually displaced along a slot 52 and at the same time, a lifter bar 56 is temporarily raised to remove the thread from a traverse guide 68. The thread is then caught by the guide 70 of a second traversing mechanism and caused to run across the members 26, 28 that guide the thread down to the winding level of the bobbin 18 and sever the thread between the two bobbins.
Patent GB-694956-A (GB)
Title: Improvements in grab arms for lift trucks
Inventor: SHARP CHARLES WILSON
IPC: B66F9/18
Filed: 1950-03-23
Abstract: 694,956. Lift trucks. ELECTROHYDRAULICS, Ltd. June 13, 1951. [March 23, 1950] No. 7360/50. Classes 78 (iii) and 78 (iv). In a lift truck, in place of the usual fork, the lifting carriage supports a pair of gripping plates 21, 23 which are movable into engagement with the load by synchronously operable fluid pressure jacks 10, 11. Plate 21 is secured to slide bars 20, 24, whilst plate 23 is secured to slide bars 22, 27 ; these bars being guided for rectilinear movement only in guideways formed by T section bars 9, 12. To permit the load to pivot relative to the plates, semi-circular members 34, 35, secured thereon, are provided to engage the load. In various modifications (not shown) these members are replaced by rotatable balls, spindles or thorns.
Patent GB-526050-A (GB)
Title: Device for maintaining swinging doors or windows in an open position
IPC: E05F1/10
Filed: 1939-03-07
Abstract: 526,050. Stays for hinged doors. BUCKERIDGE, W. March 7, 1939, No. 7394. [Class 65 (i)] A hinged door &c. 10 is held in open position by a folding stay comprising links 11, 14 pivoted together and to the frame 13 and door respectively, and capable of being opened past the straight line position by a spring 18. The link 14 has a handle 17 for opening the stay.
Patent GB-943898-A (GB)
Title: Improvements in or relating to cinematograph projectors
IPC: G03B1/40
Filed: 1960-03-02
Abstract: 943,898. Cinematographic film spool drives. ZEISS IKON A. G. March 2, 1960 [March 21, 1959], No. 7406/60. Heading G2E. [Also in Division F2] A film take-up spool of a cinematographic projector is driven through friction reduction gearing from the main driving shaft of the projector. As shown balls 4 in a stationary cage  engage a V-groove in a driving shaft 2 and also engage a ring 6a, 6b connected by a friction coupling comprising a wavy spring washer 9 to a winding shaft 7. The slip in the friction coupling is adjusted by means of a threaded ring 12 which abuts a collar 10 on the winding shaft. In a modification the ball cage is fast with the winding shaft and the ring is non-rotatable and formed in two halves which are urged together by the spring washer 9 which is adjustably loaded to vary the slip in the gearing.
Patent GB-453165-A (GB)
Title: Improvements in and relating to wrapping machines
IPC: B65B11/10
Filed: 1935-03-09
Abstract: 453,165. Wrapping-machines. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (National Bread Wrapping Machine Co. ; 132, Birnie Avenue, Springfield, Massachusetts, U.S.A.) March 9, 1935, No. 7450. [Class 94 (i)] A wrapping-machine of the type described in Specification 426,453 is provided with means for controlling the positioning and application of the wrapper. The wrapper web 26 is drawn over guide rolls 27, 28, 29 by rollers 30 provided with a pawl-and-ratchet or like feeding device, and, when the carrier 10 is in its upper position, passes over a shelf 31 to grippers 40 actuated to pass beneath the carrier, seize the end of the web, and draw it to the right, Fig. 1. When the carrier sinks to the lower position, the web is cut by a knife 34 which is raised into engagement with a cutter block 33 beneath the carrier. The article is fed from a table 15 to the left, by a plunger 16 and arrives on the carrier, taking the wrapper with it and clamping it against a backing plunger 18. The parts are now as shown in Fig. 3. During the movement of the article, the upper part of the wrapper is controlled by a rubber roll 54 on arms 53, which presses it on to springs 51 on a bar 45, adjustably mounted for a limited vertical reciprocatory movement. The roll 54 is provided with an adjustable spring brake, and, with the springs 51, serves to keep the wrapper straight irrespective of irregularities in the shape of the article. As the carrier rises, the arms 53 turn downwards into the position shown in Fig. 4, having disengaged from the springs 51, owing to the limited ascent of the bar 45, and press the wrapper against a roll 56 on the carrier. In the top position, the roll 54 is pressed firmly into contact with the roll 56 bv the action of shoes 57 mounted on the underside of the delivery channel 17. The folding is completed when the article is moved to the right along the delivery channel by an arm 20 on an oscillating shaft engaging an abutment 19 on the backing plunger 18. The movement is continued by paddles 23 pivoted at 24 to a chain 22 and controlled by links 25 connecting an extension of the paddle with a point on the chain, so that, on rounding the sprockets, each paddle is tilted rearwardly to produce sufficient spacing for the article to rise.