baber/WOPTO huggingface dataset:
Patent GB-356727-A (GB)
Title: Improvements in or relating to printing machines
IPC: B65H9/14
Filed: 1930-06-02
Abstract: 356,727. Printing-machines. HOE & CO., Ltd., R., 109, Borough Road, London. -(Hoe & Co., Inc., R. ; 138th Street, New York, U.S.A.) June 2, 1930, No. 17062. [Classes 100 (i) and 100 (ii).] Sheet-registering devices ; sheet-guides tripping- arrangements.-In connection with an automatic sheet-feeding mechanism for printing-machines of the kind in which the sheets are slowed down near the front stops and also acted upon by detectors which trip the impression cylinder if a sheet is not fed, the shaft of the front-stop mechanism is supported in an adjustable frame, which preferably also supports the shafts of the decelerating mechanism and the detector mechanism for simultaneous adjustment of the three mechanisms. The frame 14 shown in Figs. 1, 3, and 3a is fitted with brackets 21, 211, 21<11> forming end and intermediate bearings for the shafts 22, 23 of the front-stop mechanism and the detector mechanism respectively, and other brackets 24, 26, 27, 241, 26<1>, 27<1> for supporting the shaft 25 of the decelerator mechanism, and is adjustable by means of screws 17, 17<1> in guideways 16, 16<1>. The front stops 28, 28<1> each comprise a body portion 29, Fig. 5, a stop plate 31, and a top sheet-guide 32. The shaft 22 of the front stops is normally pressed towards the sheets by springs, and is raised to permit of the forward movement of the sheets by means of a lever 76, Fig. 1, operated by a cam on the impression cylinder 12, which acts on an arm 81 on the shaft 22, rear plates being arranged on the arms 76, 81. The decelerator comprises a carriage 41, Figs. 3, 3a, 5, reciprocated by an adjustable lever-and-link connection 37, 38, 43 from the shaft 25. A pivoted book-shaped member 47 engages the front edge of the sheet by means of its bent forward end which is formed so as to engage solely with the front edge of the sheet. The member 47 engages the sheet as it passes between upper and lower guides 59, 63, and is controlled by a spring 55 with an inclined end which acts on a roller 49 and depresses it into a position to contact with the front edge of the sheet. The member 47 rises under spring action when the roller 49 reaches the end of the spring 55. The shaft 25 is operated by lever-and-link mechanism 73, 72, 69, 67 from a cam 65 on a shaft 64 geared to the shaft of the impression cylinder. The sheet detector 33 is pivoted near the front stops, and is normally moved clockwise by a sheet so as to move its end 34 out of the path of a rod 36 carried by an arm 35 on the shaft 23. The shaft 23 is thus allowed to oscillate, and it is connected by lever-and-link. mechanism to a spring-controlled lever 99, Fig. 1, which is thus allowed to follow a cam 102 and cause an arm 95 to move into the path of an arm 105 on a spring-urged lever 107 connected to mechanism for tripping the impression cylinder. If however the sheet is absent, the arm 95 is not actuated and the lever 107 is able to follow the cam 109 and the impression cylinder is tripped.
Patent GB-202458-A (GB)
Title: Improvements in photographic printing apparatus
IPC: G03B27/06
Filed: 1922-06-21
Abstract: 202,458. Lawton, W. A. June 21, 1922. Printing-apparatus.-Designs or reading matter are composed or produced photographically without the use of a complete " master " (i.e. negative or positive transparency, stencil or exposure opening) by an apparatus in which the sensitive surface is carried by rotatable reels so that it can be wound backwards or forwards and in which means for exposing the sensitized material and light are provided on a rotatable disc, so that reading matter &c. in line form or patterns of circular form can be produced. In one form, a strip 33, Figs. 1 and 2, of sensitive paper &c. is held on a roller 13 slidable laterally on a rod 9 fixed in a box 1, Figs. 1, 2 and 3, the strip passing over a guide spindle 29 and across a velvet-covered bridge 3 to a second roller 14 also slidably mounted on a rod 10. These rollers can be rotated by means of milled heads 12 and can be traversed laterally by means of a screw 17 and cross-piece 15, pointers being arranged in the milled heads to indicate the positions to which the rollers have been moved. A master 34, also in the form of a strip, is wound from a roller 22 across velvetcovered bridges 4, 5 to a roller 23, the arrangement being such that it passes over the strip 33. The design carried by the master 34 may be in duplicate, only one being printed, the other being arranged to be visible from the top through a peep-hole so that the stage reached in the printing may be directly observed. The box 1 is provided with a lid 39 in which is fixed a rotatable graduated disc 40 carrying eccentrically a diaphragm having an aperture 44 fitted with a slide 45. A shutter may be fixed in the diaphragm or the slide may be itself used as a shutter. With this apparatus a variety of exposures can be made either through the negative or not; stencils, may be employed or the aperture may itself be used as a stencil. Instead of a shutter, a lamp-box may be provided on the disc, the lamp 52, Fig. 8, being connected with its battery 53 by the connections shown. Several diaphragms may be used with apertures of different sizes and may be adapted to receive negatives so that the strip negative may be omitted, or both negatives may be used in conjunction.
Patent GB-137758-A (GB)
Title: Dust caps for tyre valves
IPC: B60C29/06
Filed: 1919-07-08
Abstract: 137,758. Ellis, G. B., (Schrader's Son, Inc., A.). July 8, 1919. Protecting - covers. - A dust-cap E for a tyre valve B is attached to the rim nut D by screw-threads g on the cap engaging corresponding threads on the nut and secured against accidental detachment by grooves e on spring fingers d on the cap engaging a rib c on the nut.
Patent GB-349787-A (GB)
Title: Improvements in and relating to means for avoiding errors due to parallax in taking readings from scales and pointers
IPC: G01D13/00
Filed: 1930-06-04
Abstract: 349,787. Weighing-apparatus. INTERNATIONAL BUSINESS MACHINES CO., Ltd. and MILES, J. W., Beavor Lane, Hammersmith, London. June 4, 1930, No. 17171. [Class 143.] Indicating mechanism.-In order to minimize errors due to parallax in t a k i n g readings from scales and pointers of indicating apparatus more particularly weighing-apparatus a sighting device is provided comprising a hood-like s ructure extending to a distance from the pointer or other reference body and having an aperture of slit-like proportion whereby the index is viewed between planes of observation approximating closely to the true plane. As shown applied to a weighing machine of the movable indicator drum type, Fig. 1, a horizontally arranged wire 4 is situated between the graduated drum 1 and a magnifying lens 5 in a frame 6. At each end of the drum is mounted a bracket 7, Fig. 2, with convergent channels 9, 10, into which are slid rectangular slats 11, 12, forming a hood of translucent material with their surfaces treated to avoid internal reflection.
Patent GB-573492-A (GB)
Title: Improvements in or relating to marking apparatus
IPC: B41F17/10
Filed: 1945-02-07
Abstract: 573,492. Printing-machines ; feeding webs ; cutting apparatus. HATFIELD, J. E., and IRVING AIR CHUTE OF GREAT BRITAIN, Ltd. Feb. 7, 1945, No. 17211. Divided out of Complete Specification of 574,122. [Classes 100 (i) and 100 (ii)] A machine for applying markings to flexible strip or rod-like material in which the material is fed by a reciprocating gripper and is guided and printed in predetermined positions is characterized in that the printing means comprise a plate adapted to carry a printing- die and capable of moving towards and away from the bed of the machine, the plate being mounted for longitudinal movement along the bed of the machine in unison with the reciprocating feed means. In a machine for cutting and marking tape fed from a spool mounted on a removable rod 50, the tape is led between. guide bars 36 over. a bed 24, which may have side guides for the tape, and the tape is advanced intermittently by a series of pivoted serrated plates 30 mounted on a horizontal axle 31 supported by members 32 adjustably connected to a frame which is reciprocated on guide bars 27 by a crank 41 to which is adjustably connected a connecting-rod 45. The frame comprises an upright frame 25 and tubes 26 which slide on the bars 27. A helical cutter 39 is mounted on the crank-shaft and cooperates with a fixed plade 40 as the frame makes its return stroke. Other grippers arranged nearer the cutter than the grippers 30 may be used to prevent reversal of movement of the tape. A printing-plate 54 is attached to a plate 51 which is normally raised by four weak springs. At the end of the return movement of the frame 25 cams 66 engage roller 65 on the rods 64 attached to the plate 51 which is raised against the action of a strong compression spring 59. A trigger 60 holds the plate 51 in raised position until the trigger is operated by an adjustably mounted rod 72 which is set to cause the printed impression to be made in the desired position. If printing is not required the plate 51 may be held out of action permanently by the trigger 60. An inking-device 58 is provided for the printing-ptate.
Patent GB-1106975-A (GB)
Title: Improvements in or relating to character recognition systems
Inventor: WEAVER JOHN ANTHONY
IPC: G06V30/164
Filed: 1965-04-23
Abstract: 1,106,975. Noise reduction. MULLARD Ltd. 24 Jan., 1966 [23 April, 1965], No. 17234/65. Heading G4R. [Also in Division H3] A character on which a noise-reduction process is to be carried out is read into a first storage matrix, overlapping sub-matrices of which are coupled to respective elements of a second storage matrix. Each core of a second magnetic core matrix (B) is coupled by a respective transfer wire with 9 cores (a 3 x 3 sub-matrix) of a first core matrix (A) in parallel, such that each core of the first matrix forms the centre core of such a submatrix. A character to be recognized is scanned, digitized and written into the first matrix (A) using co-ordinate selection. The first matrix is then reset using a common reset winding, the second matrix being suitably biased so that the signal induced in a given transfer wire will set its core in the second matrix if at least 5 of the 9 cores of the corresponding sub-matrix were previously set. Each set core in the second matrix is then used to cause setting of the centre core (or another core) of the corresponding sub-matrix. This process may be repeated, and compensates for ink-blots, paper roughness, character distortion and incomplete printing. As a modification, the second matrix may be used to control the first after one column or one element of the second matrix has been controlled by the first. The numbers 9, 3, 5 above may be replaced by 25, 5, 13 respectively.
Patent GB-1206224-A (GB)
Title: Connecting device for telecommunication cables
Inventor: MALTZ GEORG
IPC: H04Q1/14
Filed: 1968-04-10
Abstract: 1,206,224. Circuit assemblies. KABEL-UND METALLWERKE GUTEHOFFNUNGSHUTTE A.G. 10 April, 1968 [11 April, 1967], No. 17328/68. Addition to 1,188,568. Heading H1R. [Also in Division H2] In a device for electrically connecting two sections of communication cables, the capacitors and/or Pupin coils necessary for balancing purposes, and optionally active components, e.g. amplifiers are incorporated by interrupting the conductor paths and inserting the element. As shown, the interconnection between the printed conductors 42 joining the cable conductors and 41 leading to the measuring and testing devices are in the manner of a cross-bar distributer, and capacitors 44, 45, loading coil 43 and amplifiers 46, 49 are plugged into interruptions in conductor paths 42 at locations lying between lines 48 and 49. To this end the plate may be constructed in three parts 51, 52, 53 with the conductor paths formed at 54, 55, the part 52 being exchangeable. Instead of a plurality of superimposed boards 40, a single board folded "concertina-wise" may be used.
Patent GB-292534-A (GB)
Title: Process for the production of cellulose
IPC: D21C9/12
Filed: 1928-06-15
Abstract: 292,534. Hagglund, E. June 21, 1927. [Convention date]. Pulp, preparation of.-The yield of cellulose from cellulose containing material, such as pine wood and beech wood, is increased, and a stronger product is obtained, by boiling with alkali just long enough to separate the fibre, then treating with chlorine whereby hydrochloric acid, and lignine chloride which is soluble in water and alkali are produced. Chlorine in the form of chloride of lime is then added and the reaction carried on with continual stirring, then the stuff is washed first with water and afterwards with a little alkali. The bleaching is effected with a hypochlorite such as chloride of lime. The treatment with chlorine and hypochlorite preferably take place in more than one stage, the first stage using less chlorine and hypochlorite than would correspond with the total lignine present.
Patent GB-570637-A (GB)
Title: Improvements in or relating to aircraft navigation instruments
IPC: B64D43/00
Filed: 1943-10-22
Abstract: 570,637. Navigation instruments. WIKKENHAUSER, G. Oct. 22, 1943, No. 17453. [Class 97 (ii)] A navigation instrument for use in connection with automatic gyro pilots in aircraft comprises a resiliently suspended weight which is adapted to occupy a predetermined position in the aircraft when the latter is horizontal and subject to no acceleration. The weight is capable of displacement in any direction and means are provided for indicating when it has entered the predetermined position. The metal spherical weight D is suspended from a frame by three similar helical springs E, F, G, the axes of which are uniformly spaced on the surface of an imaginary inverted truncated cone and is pierced by three cylindrical holes A, B, C, all at right angles to each other and equidistant from the centre of the sphere. When the aircraft is level and subject to no acceleration a beam of light from the source J will be reflected by the mirrors K, L, M, N through the holes A, B, C into the photocell P, activation of which either sets the gyro pilot automatically or signals to the navigator the necessary information for manual setting. The amplifier for the photocell may have delayed action to exclude a spurious signal and the motion of the weight D may be damped by immersion in transparent viscous liquid.
Patent GB-1310783-A (GB)
Title: Spark gap
IPC: H01T1/04
Filed: 1971-05-27
Abstract: 1310783 Spark gaps ALLMANNA SVENSKA ELEKTRISKA AB 27 May 1971 [11 June 1970] 17462/71 Heading H1D In a spark gap for a surge diverter with magnetic blowing of the arc comprising at least two discs 1 of electrically insulating material resistant to the arc having a space between them provided with metal electrodes 3, 4 and 7, the electrodes are arranged to form paths for the arcs running from a spark-over point 5 between electrodes 3 and 4 to the outer edge of a disc and then turning through an angle of between 90 and 180 degrees to expand and enter one or more extinguishing spaces 15 and 16. In the form shown the electrode 7 is provided with a projection 8 facing towards the sparkover print 5, and the electrodes 3 and 4 have eyes at their ends which surround respective projections 9 and 10 on the central part of the disc. In an alternative form (Fig. 2, not shown) the projection 8 is extended between the electrodes 3 and 4, and two intermediate electrodes are provided to form four gaps in series and four extinguishing chambers. A further alternative embodiment (Figs. 3 and 4, not shown) comprises three chambers arranged one above the other and having communicating slots through which the electrodes 3 and 4 extend. Electrode 7 is located in the middle chamber. Each electrode 3 and 4 has an eye at both ends. One end of each electrode 3 and 4 surrounds a respective projection in the middle chamber while the other end surrounds a projection in the upper and lower chamber respectively.
Patent GB-851282-A (GB)
Title: Improvements in and relating to a device for providing a dead head in an ingot and like mould and apparatus for using said device
IPC: B22D7/00
Filed: 1958-06-02
Abstract: 851,282. Ingot moulds. DAUSSAN, H. J. June 2, 1958 [June 4, 1957], No. 17497/58. Class 83 (1). [Also in Group XV] A heat-insulating dead-head is formed at the upper part of an ingot or like mould used in casting steel &c. by adhesively securing against the inner face of the mould wall a band of paper, cardboard or flexible plastic material. A device for applying the material comprises a fluid-tight cylindrical housing 1, Fig. 3, containing a roll of adhesive band material B which is partly or wholly immersed in an adhesive liquid 22 also contained in the housing, one of the ends B<1> of the material extending out of the housing through a slot 9 provided with sealing-means to prevent the egress of adhesive from the housing when the device is not in use. The sealing- means may comprise a trap, slide, shutter, &c. for opening or closing the slot 9 but, as shown, is formed by two rubber flaps 11 so arranged that their lips 13 are ordinarily applied against one another to form a seal for the slot 9. The device is moved along the entire periphery of the mould L to secure therein as many layers of the band B as are required to obtain a dead-head of required thickness. This may be done manually without additional apparatus, but, as shown in Fig. 5, a support-carriage A<1> is provided which moves along the upper end of the mould L<1>. This comprises two flanged wheels 23, 24, urged together by a spring 35 to ride on the upper edges of the mould wall, the U-bracket carrying the inner wheel 23 supporting the device D<1>, which is urged towards the inner wall of the mould by a spring 45. Parts 39, 41, 42, form a counterbalancing weight for the device D<1>. In another embodiment, Fig. 8, for an elongated ingot mould L<2>, the support-carriage A<2> comprises a cross-member 53 provided with rollers 55 engaging in grooves 56, or on rails formed in or on the upper end of the mould, the device D<2> being supported in a slot 57 in the member 53. Movement of the member 53 along the length of the mould, together with movement of the device D<2> along the slot 57, permits the device D<2> to be brought close to the inner faces of mould for application of the band B<1>. In other embodiments, Figs. 9-12 (not shown), the device is supported by a permanent magnet or an electromagnet, the ends of the arms of which engage the inside wall and upper end of the mould. These arrangements permit relative movement towards and away from the mould wall between the device and the magnet or electromagnet, and sliding of the whole assembly around the periphery of the mould. French Specification 1,003,876 is referred to.
Patent GB-292913-A (GB)
Title: Indirectly heated thermionic cathode
IPC: H01J1/20
Filed: 1928-06-18
Abstract: 292,913. Loewe, S. June 25, 1927, [Convention date]. Vacuum tubes.-A cathode is heated from the end by conduction from an indirectly-heated body such as a cylinder. As shown in Fig. 2, the cathode 2 is connected at each end with cylinders 4 heated by radiation and electron bombardment from an internal filament 8; or a single cylinder mav be connected to one end of the cathode. If alternating current is supplied to the cylinders 4 the rectified current may be used for the supply to one or more anodes and to the filament of one stage of an amplifier system. Mica shields 6 may be interposed to prevent electrons from passing from the filament 8 to the grid 2 and anode 3. In a modification the ends of the cathode are formed as helices heated by an internal filament. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the arrangement shown in Fig. 4 (Cancelled), in which extensions 8, 9 of the cathode 1 are heated by passage of current, and the resistances of the connections 13, 14 to one supply lead 10 are made of such value that no current passes through the filament. This subject-matter does not appear in the Specification as accepted.
Patent GB-200813-A (GB)
Title: Improvements in and relating to safety-devices for mine cages, lifts, elevators and the like
IPC: B66B5/20
Filed: 1923-07-06
Abstract: 200,813. Binon, O., and Wautelet, C. July 13, 1922, [Convention date]. Catch gear of mine-cage type.-When the hoisting rope breaks the beam B is forced by the spring A or by a weight from the upper position shown in broken lines to the lower position and the guide-embracing members D are brought into action by the displacement of the connecting links F. The safety device may be locked in operative or inoperative position by the insertion of bolts G above or below the beam B. The members D are provided with toothed removable steel linings.
Patent GB-222587-A (GB)
Title: Process of recovering ammonia from gases or vapours
IPC: C01B25/28
Filed: 1923-07-07
Abstract: Ammonia is removed from gases containing it by passing the gas through a solution acidified with phosphoric acid or ammonium dihydrogen phosphate under such conditions that crystals of diammonium hydrogen phosphate separate, the operation being performed in a manner similar to the treatment of such gases with sulphuric acid to obtain ammonium sulphate.  The separated diammonium phosphate may be heated to obtain ammonia and the acid phosphate which is used again.  The heating of the diammonium phosphate may be effected with superheated steam the degree of superheat being so chosen that on cooling the issuing ammoniacal vapour the ammonia condenses to a concentrated solution with the water condensed from the steam present.
Patent GB-544261-A (GB)
Title: Improvements in or relating to tyre valves
IPC: F16K15/20
Filed: 1940-12-14
Abstract: 544,261. Tyre valves. BARRETT, A. G. Dec. 14, 1940, No. 17697. [Class 135] A tyre valve having the stem formed from a single piece of flexible rubber has threads moulded on the upper part of the rubber stem to receive the inflating connection and has the valve chamber so formed as to provide in its upper part a valve seat and to prevent the valve member from blocking the flow of air through the valve chamber during inflation. In the form shown in the Figure the ball of steel, glass, aluminium, or synthetic resin such as that known under the Registered Trade Mark " Bakelite " is inserted through the passage c<SP>2</SP> and retained in place adjacent the seat c<SP>4</SP> by projections e formed on to the wall of the valve chamber c<SP>3</SP>. In a modification the projections e are arranged to press the valve to its seat. The ball may be replaced by a dolly-pin valve having a hemispherical or conical head or the valve may be made hollow. The threads on the nipple may have a slightly different pitch from that on the inflating connection or dust-cap which may be formed with a deflating pin. A thin metal insert may be placed in the upper part of the stem or strengthening bands may be put around the outside.
Patent GB-571072-A (GB)
Title: Improvements in high pressure discharge tubes
IPC: H01J61/54
Filed: 1943-10-27
Abstract: 571,072. Discharge lamps. INGHAM, H. W. DENTON- (Lumalampan Aktiebolag.). Oct. 27, 1943, No. 17710. [Class 39 (i)] [Also in Group XXXV] A high-pressure discharge tube with a glow relay regulated by a bimetal strip in the preheating circuit, has this relay within the tube or an outer envelope containing it, the relay being shielded from the heat of the electrode. In the form shown, the relay 10 having bi-metal strips 11, 13 is shielded by a mica barrier 8 and screens 7 on the ends of the lamp and as an additional safeguard a thermal switch 19 may be provided in addition which opens when the electrodes reach their normal temperature. A lamp for D.C. is described, having one electrode only preheated and without switch 19. A series impedance in the form of an incandescent helix surrounding the discharge vessel may be used. The cathode may be activated with barium oxide.