baber/WOPTO huggingface dataset:
Patent GB-586050-A (GB)
Title: Improvements in sheet feeding apparatus for printing and like machines
IPC: B41L21/02
Filed: 1944-08-10
Abstract: 586,050. Feeding sheets. STEVENS, A. H. (Smith & Corona Typewriters, Inc., L. C.). Aug. 10, 1944, No. 15245. [Class 100 (i)] A sheet-feeding device, which is especially applicable in connection with a mirror - script copying machine as described in Specification 534,845 in which the sheets are registered by pivoted stops 25 coacting with a grooved lower driven roller 11 and an upper roller 12 which is lowered into contact with the roller 11 by oscillating arms 20 as the stops 25 are raised into grooves in the upper roller, is constructed with a fixed pile table 32, Fig. 6, for supporting a pile of sheets 67 from which the sheets are separated and fed in succession by means of an intermittently driven friction roller 47, or the sheets may be fed by hand over the table 32 when the roller 47 is moved to the position shown by dotted lines in Fig. 5. The roller 47 is secured in an adjustable position on its shaft 44 which is mounted in a frame 42 pivoted to the shaft of the roller 11 and normally connected by a spring latch 59 to a pair of pivoted arms 34 connected by means of a feed plate 35 over which the sheets pass on their way to the rollers 11, 12. A curved support 36 integral with the plate 35 serves to register the front edges of the sheets in curved formation so as to facilitate separation. The arms 34 and associated parts tend to pivot about the axle 13 by gravity, their position being determined by engagement of the roller 47 with the pile, in which position the roller 47 is fixed above the left edge of a rubber block 39 let into the plate 35 at such a distance that only one sheet can be fed at a time, and should double feed occur the lower sheet is held back by the right edge of the block 39. The roller 47 is driven by a sprocket drive from a friction roller 55 when this is raised into contact with a driving member 56 on the shaft 13 by means of an oscillating lever arm 70 actuated in an adjustable manner from the cam 10 on the shaft of the printing-roller, which also actuates the drip roller 12 and stops 25 as described in Specification 534,845. The separated sheet is guided by a pump 41 in plate 35 and a pivoted guide 33 so as to bend the sheet and cause it to be buckled when it reaches the stops 25, the extent feed being greater than required to reach the stops. When the stops rise the drive to the roller 47 ceases. The downward movement of the arms 34 is limited by an adjustable stop 38, Fig. 5, and this position of the arms 34 corresponds to the hand-feed position. The table 32 is fitted with adjustable side guides, or only one guide may be used, and the roller 47 placed eccentrically so as to bias the sheets towards the guide.
Patent GB-544059-A (GB)
Title: Improvements in hydraulic weighing scales
IPC: G01G5/04
Filed: 1940-10-15
Abstract: 544,059. Weighing-apparatus. AVERY, Ltd., W. & T. (Bohannan, R. S.). Oct. 15, 1940. No. 15279. [Class 143] In a weighing scale the load on the platform 8, Fig. II, is transmitted from hydraulic supports 3 to corresponding metallic bellows 13 from which the pressure is imparted by parallel motion means 18, 25, Fig. III, to the load pivots 19 of corresponding levers 20. The levers 20 are coupled, by a rod 37 and adjustable knifeedge bearings 31, 40, to a common. lever 48 connected to pendulous load-counterbalancing mechanism. The tops of the bellows 13 are secured to a fixed shelf 12 and the bottoms, which are closed by discs 17, are secured to the spiders 18 forming part of the parallel'motion means. The hydraulic supports 3 consist of metallic bellows 5, Fig. IV, closed at the bottom by discs 6 which support the platform by means of legs 7. The bellows are located within cups 3J, and the space between the bellows and the cups is filled with liquid. Compensation for variation in size of the discs 17 or 6 is effected by adjustment of the knifeedge bearings 31, 40. Specification 531,792 is referred to.
Patent GB-1134529-A (GB)
Title: Transformer winding and shielding structure
IPC: H01F27/28
Filed: 1967-04-04
Abstract: 1,134,529. Transformers. WESTINGHOUSE ELECTRIC CORP. 4 April, 1967 [27 April, 1966], No. 15303/67. Heading H1T. An inductive winding comprises pairs of disc coils 112, 114, 116, 118 connected in two series paths between a line terminal L and a second (e.g. neutral) terminal 160, an electrostatic shielding plate 121 being disposed at least between the disc coils 120, 122 connected to terminal L. Shielding plates may also be disposed between the disc coils of some or all of the remaining discs coil pairs.
Patent GB-1080154-A (GB)
Title: Hair colourants
IPC: C09B51/00
Filed: 1965-04-12
Abstract: The invention comprises nitro dyestuffs of the formula <FORM:1080154/C4-C5/1> wherein R1 and R2 each are hydroxyalkyl radicals of 2-6 C atoms and R3 and R4 are each H or 1-4 C alkyl radicals, which may be prepared by condensing a 1-chloro-2,4-dinitrobenzene with HNR1.R2, partially reducing the product with H2S or sodium polysulphide.  The dyes may be employed to dye human or animal hair.  Specified radicals R1 or R2 are -CH2 CH2OH, -CH2CH(OH)CH3 and -CH2CH (OH)CH2OH. Examples are given.ALSO:Animal or human hair is coloured by means of a nitro dye having the general formula <FORM:1080154/D1-D2/1> wherein R1 and R2 represent C2-6 hydroxy alkyl groups and R3 and R4 represent hydrogen or C1-4 alkyl groups, which dyes may be used with other direct dyes especially those of the general formula <FORM:1080154/D1-D2/2> wherein R1, R2, R3 and R4 are as above defined.  Examples illustrate the use of an aqueous solution comprising a mixture of the two types of nitro dyes, a wetting agent and triethanolamine or dipropylene triamine.
Patent GB-497008-A (GB)
Title: A motor-cycle suspension system
IPC: F16F3/12
Filed: 1937-06-05
Abstract: 497,008. Springs; motor-cycle spring forks. TURNER, E. June 5, 1937, No. 15618. [Class 108 (iii)] [Also in Group XXXI] A motor-cycle wheel suspension includes a resilient device consisting of a helical spring having adjacent surfaces of some or all the coils connected together through rubber or the like, one end of the device being attached to a fork movable with the wheel and the other to the frame. The device may also consist of a helical spring formed of wire of substantially rectangular X-section embedded in a rubber sleeve having a bore diameter approximately one-third its overall diameter. The spring may be stressed in compression or tension while the rubber is applied to it. As shown, the device consists of a spring 11 embedded in a rubber sleeve 12 and connects the front fork 13 with the frame 14, the connection with the frame being effected by a flanged plug 15, 16. In a modification, the rubber is shaped so that it is waisted between adjacent coils when the spring is unstressed. Specification 497,051 is referred to.
Patent GB-918054-A (GB)
Title: A process for the production of alkylated aromatic hydroxy compounds
IPC: C07C37/14
Filed: 1961-05-01
Abstract: Aromatic hydroxy compounds with at least one unsubstituted o- or p-position are alkylated with an olefin in presence of chromium oxide, molybdenum oxide or an oxide of a metal of Group Va or VIII of the Periodic Table, or a mixture of two or more such oxides; the catalyst may be supported on, e.g. Al2O3 silicates or active carbon. The aromatic hydroxy compound may be phenol, a cresol, a chlorophenol, resorcinol, hydroquinone, a naphthol, an alkylated naphthol, or a mono- or di-hydroxy anthracene.  The reaction may be effected at 100-400 DEG C., preferably 150-320 DEG C., if desired in the presence of an inert diluent.  The olefin may be of the aliphatic, alicyclic, or araliphatic kind e.g. it may be ethylene, propylene, isobutylene, n-butylene, di-isobutylene, cyclohexene, or styrene.  Specified catalysts include oxides of vanadium, columbium (niobium), cobalt, nickel, iron, and platinum, as well as of chromium and molybdenum. The catalyst may be supported on aluminium oxide, silicates, or active carbon.  The products are predominantly aromatic hydroxy compounds alkylated in the nucleus mainly in the ortho or para positions.  Examples describe the production of o- and p-isopropyl phenols, 2.6-and 2.4-di-isopropyl phenol, 2.4.6-tri-isopropyl phenol, o-sec. butyl phenol, o-tert. butyl phenol, p-tert. butyl phenol, o-ethyl phenol, o-cyclohexyl phenol, o- and p-cumyl phenol (using a -methyl styrene as the olefin reactant), 2-methyl-6-isopropyl phenol, mono-isopropyl resorcinol, 2.5-di-isopropyl-hydroquinone, 2-isopropyl-1-naphthol, 2-isopropyl and 2.6-di-isopropyl-3-chlorophenol.
Patent GB-911905-A (GB)
Title: Character reading system
IPC: G06V30/224
Filed: 1961-05-01
Abstract: 911,905. Automatic character reading. NATIONAL DATA PROCESSING CORPORATION. May 1, 1961 [June 21, 1960], No. 15757/61. Class 106 (1). In a character recognition apparatus the characters are imaged on to the screen of a vidicon tube as a pattern of charged areas and scanned out to provide electric signals which are used to identify the character. The characters 101 are illuminated by a lamp 100 and projected by lens 104 on to the vidicon tube screen 103. A shutter is interposed to interrupt the light after an appropriate exposure. Alternatively, the image may be projected by using an electronic flash lamp, the character being stationary or moving. The vidicon tube has horizontal and vertical scan control circuits 7, 14 to cause the beam to perform a series of vertical scans from bottom to top through the characters as shown in Fig. 7. The beam is normally blanked to avoid burning the screen, but scanning commences when a start signal is given, either by pressbutton or from the output equipment. Counting chains 43, 44 are provided controlled by the vertical and horizontal sweep circuits 14 and 7. The horizontal scan counter 44 has nine stages since a character is covered by about nine vertical scans. Counting starts when the scanning beam meets the first black parts of the character so that successive stages represent nine scans over the character. In each scan the vertical step counter 43 is started by the first black encountered and it counts five steps covering the height of the character. The characters are specially shaped to assist recognition as shown in Fig. 3. Since the vertical step counter always starts at the first black encountered by the upward scan, the character is presented to the identifying circuit in a modified shape as shown for characters 4, 7 and 9, Fig. 4. Three of the nine stages of counter 44 and four of the five stages of counter 43 are connected to six And gates 45. The signals from the scanner are also applied to these gates so that they test the points b, c, h, j, l, n of the character area to determine whether these points are white or black. The signals derived are stored at 46 and the outputs applied to a diode network 47 which identifies the character, giving an output on a character lead. Should a combination of signals appear which does not represent a character, an error circuit responds to give an alarm. The control circuits are arranged to be reset by a blank vertical scan so that if the counters have been given a false start by a spurious pulse a subsequent all-white scan resets the circuits in readiness for the scanning of a character. The same circuit resets the apparatus at the end of a character in readiness for the next. The screen of the vidicon tube is erased by the scanning operation, two complete scans being made before the next character is imaged on to the screen.
Patent GB-1383839-A (GB)
Title: Automatic can opener
IPC: B67B7/70
Filed: 1972-04-05
Abstract: 1383839 Electric motor driving arrangements ETUD SARL 5 April 1972 [7 April 1971] 15763/72 Heading H2A [Also in Division B8] In an electric motor-driven can opener wherein an arm 1 is pivoted about a fixed axle 3 by a rotatable cam 13 to bring a can-traction wheel 22 adjacent a cutter 23 on energization of a motor 7 rotatably-driving the cam and traction wheel through a gear train, the drive is effected through the lower of flanges 46 and 47 of a spool 8 fixed to the motor shaft 30 and engaging a friction wheel 9 of the gear train. To enable reverse rotation of the gear train, the motor shaft is axially-displaceable against a spring 29 on manual depression of a push-rod 37 to disengage the lower spool flange 46 from the friction wheel and engage the upper spool flange 47.
Patent GB-1349784-A (GB)
Title: Pressing arrangements
Inventor: RIDGWAY MERRILL L
IPC: B21D22/00
Filed: 1971-05-19
Abstract: 1349784 Stamping; controlling punching and shearing machines; forging MINSTER MACHINE CO 19 May 1971 [21 Sept 1970] 15803/71 Headings B3Q B3W and B3H [Also in Division G3] A press is automated by an electric control system, see Divisions G2-G3, comprising a controller which, in response to read information selects a die-set from a store and transfers it to an operative position to which a stock material is automatically fed. As shown, Fig. 1A, a press 10 has a bed 12 on which is mounted a bolster plate 18 juxtaposed to a crank-shaft-driven press slide 20 which, together, carry a detachable die-set 22 and a cut-off die 24 discharging into a shoot 26. The selected die-set is placed into the working space of the press from a turret type die-store and transfer device 28. The shut height of the press is automatically adjusted by a motorized screw, not shown, and the stock is automatically held during a pressing operation by a clamp 126. The stock to be pressed is automatically and selectively fed from a stationary frame (Fig. 1D), having spindles for supporting a pair of reels, through a straightening device from which the stock can also be automatically returned to the reels. The stock is fed into the press through a guide device 72, Fig. 1B, from a table 76, connected by a flexible member 74, which is held at an angle by an hydraulic ram 82 except during the initial and final portion of a run of a selected die-set. The table has side rails 86 providing a bell-mouth entry for the stock. The stock is fed at a controlled rate in the device 72 by a motor 106 and the feed is synchronized with the press crank-shaft through a member 122 and a cam 120 whereby a pressure roller 104 is released when the press slide is fully extended. Guides of the device 72 are automatically positioned laterally by a reversible geared motor 100. The press operation may be punching, shearing, coining, stamping.
Patent GB-713261-A (GB)
Title: Process for the splitting of soaps of unsaturated fatty acids
IPC: C11C1/02
Filed: 1951-07-04
Abstract: The splitting of alkali metal soaps of unsaturated fatty acids into soaps of lower saturated acids and acetates by heating them above 250 DEG  C. with caustic alkalis (Varrentrapp reaction), is catalysed by the addition of cadmium or cadmium compounds. Anhydrous or aqueous caustic alkali may be used and the excess of alkali need not exceed 10 per cent. of the theoretical quantity. The catalyst may be cadmium oxide or cadmium iodide, or it may be provided by lining the reaction vessel with cadmium or cadmium/copper or by using a cadmium/copper stirrer.  The soaps may be formed initially from unsaturated fatty acids by neutralizing them with caustic alkali or with soda or other alkaline-reacting alkali metal salt.  In an example, soya-oil is saponified with a 30 per cent. soda solution and the dried soap thus produced is heated for two hours at 385 DEG C. and 220 atm. with caustic soda solution and cadmium oxide in an autoclave provided with a cadmium/copper lining and stirrer.  Specification 713,257 is referred to.
Patent GB-718512-A (GB)
Title: A new or improved electronic leader-follower circuit
IPC: B23K11/24
Filed: 1951-07-04
Abstract: 718,512. Valve-control systems. BATES, C. R., and BATES, M. E. July 3,1952 [July 4, 1951], No. 15830/51. Class 38(4) Conduction of a trailing valve b, in dependence upon conduction of the leading valve a of a back-to-back pair transmitting A.C. from a source c to a load e such as a welding transformer, is effected by a condenser j which charges up over potentiometer g and rectifier h when the leading valve conducts and thus partly nullifies a hold-off bias voltage m and allows a peak firing voltage provided by a transformer l to become operative. This firing voltage is phase displaced by 180 degrees from a similar voltage applied to valve a by transformer d. A discharge resistor k on condenser j ensures that valve b can conduct for only one half-cycle after each halfcycle of conduction of valve a.
Patent GB-144726-A (GB)
Title: Improvements in crushing roll machines
IPC: B02C4/30
Filed: 1920-06-11
Abstract: 144,726. Kennedy, J. E. Feb. 15, 1917, [Convention date]. Roller mills.-In mills for crushing rock, ore, coal, &c., the roll tyres R, Figs. 1 and 4, are provided with teeth r which are inclined in opposite directions on the two rolls, the annular rows of teeth on one tyre intervening between those on the other, and the teeth of adjacent rows being staggered. The teeth have renewable wear-face sections r<1>, which are slightly tapered to fit into sockets. Each roll shaft can be longitudinally adjusted in its bearings by means of annular grooves s<x>, Fig. 1, in the ends of the shaft, which are engaged by tongues e, Fig. 7, on split collars E, which abut against the ends of the bearing- boxes, split shim rings e<1> being placed in the grooves on either side of the tongues. The Specification as open to inspection under Sect. 91 (3) (a) describes also a general construction of machine frame, spring-pressed bearings for the rollers, and means for securing the rolls on their shafts. The machine is formed with a base frame consisting of side girders B, Fig. 6 (Cancelled), and end girders B<1> of I-section steel, the end girders being shaped at their ends to fit into the side girders and being secured thereto. At the corners of the frame are fixed standards C connected at the sides of the machine by tensionbars D, which are supported at their middle points by posts D<1>, Fig. 1, fixed to the side girders B. A hopper H is supported between the posts D<1> and upon an inner base frame B<2> which also supports a roll-casing h having hinged sections h<1>. The hopper is connected with the crushing-rolls, by reversible cheek-plates P secured to the posts D<1>. Each roll shaft S is mounted in bearing-pedestals S<1>, Fig. 1, having caps S<2> and arranged to slide between the side girders B and the tension bars D. Each journal s is seated in a split bearing- box s<3> having a spheroidal part s<4> fitting in corresponding cavities in the pedestal so as to form a ball-and-socket mount. Keyed to each shaft S is a fixed core A, Fig. 1, on a cylindrical part of which is mounted a supplementary core A<1>, the two cores being drawn together by coupling-bolts. Each core has a conoidal surface which is engaged by corresponding surfaces on the toothed shell or tyre R of the crushing-roll. The normal position of the bearing-blocks S<1> and shafts S is determined by screws T, Fig. 10 (Cancelled), against which the blocks abut. The screws turn in plates N which can slide between the bars B, D, springs i, j j being interposed between the plates N and standards C. The plates N are coupled to the standards C by adjustable rods c. The bearing-blocks are held up to the ends of the screws T by plates G which are interposed between the springs i, and are connected to the blocks by adjustable rods g<1>. The screws T carry sproclcet-wheels t<2> which are connected by chains to turn in unison, the ends of the screws being of angular form for engagement by a wreneh &c. This subject-matter does not appear in the Specification as accepted.
Patent GB-477753-A (GB)
Title: Centrifugal separator provided with paring members projecting into the bowl
IPC: B04B1/08
Filed: 1937-06-08
Abstract: 477,753. Centrifugal separators. AKTIEBOLAGET SEPARATOR. June 8, 1937, No. 15906. Convention date, June 11, 1936. [Class 23] A centrifugal separator has a tiltable cover 3 above the bowl, and the lighter component of the liquid is discharged through a paring device 12 detachably connected to the cover. The part 12 is of conical shape and is tightly connected to a conical seat in the cover by tightening rings 17, 18. Discharge channels 10, 11 from paring channels 13 pass through the part 12, which also encloses the inlet nozzle 8. The cover is held on by a threaded sleeve 7 provided with a hand wheel 15. After the sleeve 7 is screwed off the nozzle 8 the part 12 is free from the cover 3 which can then be tilted up.
Patent GB-862952-A (GB)
Title: Improvements relating to apparatus for forming padding from textile or like fibres
Inventor: CALLAGHAN ALBERT EDWARD
IPC: D01G99/00
Filed: 1957-05-20
Abstract: 862,952. Nap-forming apparatus. CALLAGHAN & SON Ltd, A. E. May 20, 1958 [May 20, 1957], No. 15990/57. Class 120(1) Fibre padding is formed on apparatus having a foraminous rotary drum on to which fibres are blown and from which they are delivered first onto a stationary surface, then to a conveying device. Fibres teased by a drum 3 are carried by the blast from a blower 1 on to a foraminous drum 9 and delivered on to stationary surface 8 and conveyer 14. A hinged baffle plate 10, an adjustable stripper plate 12 and adjustable squeeze rolls 16 may be provided. In an alternative modification, no teasing arrangements are provided and the fibres are fed to the blower, to be deposited by it on a pair of perforated rollers followed by a short stationary plate and a conveyer. Examples of the fibres that may be treated are glass, asbestos, jute, coir, horse hair, hog's hair, flax, wool, cotton, sisal and fibres recovered by opening string or rope. Specification 855,854 is referred to.