baber/WOPTO huggingface dataset:
Patent GB-925311-A (GB)
Title: Improvements in or relating to apparatus for photocopying image-bearing originals
IPC: G03D13/00
Filed: 1959-06-19
Abstract: 925,311. Feeding sheets. W. ZINDLER, [trading as LUMOPRINT ZINDLER KOMM.- GES.]. June 19, 1959 [July 23, 1958], No. 21166/59. Class 100 (1). [Also in Group XX] Apparatus for photographically copying a sheet original and comprising an exposure device, a developer device, and a pair of stack holders for positive and negative sheets respectively, includes guides for directing sheets from each of the holders to an associated pair of transport rollers, blocking elements arranged to project into the guides to prevent the sheets advancing and to be withdrawn therefrom in accordance with the insertion of an original to allow advance of one of the negative sheets, and in accordance with the advance of the negative sheet to allow the advance of a positive sheet, to its adjacent transport roller, and at least one advancing device disposed between each stack holder and its associated blocking element for advancing the sheets to the latter and arranged to slide on the sheets when they are prevented from advancing. As shown in Fig. 1, a photoconductive sheet 3 from a holder 4 and a positive receiving sheet from holder 34 are fed by friction rollers 18, 35 and rollers 14, 15 and 36, 37, respectively, against blocking arms 23, 38. When an original is moved over guide plate 5 into engagement with the conveyer belts 7, lever 78 is tripped and releases the sheet 3 which is charged at 22 and brought into register with the original for contact printing exposure on the cylinder 8. The original then is separated off by pick-off roller 29 along the direction 39 and the exposed negative sheet 3 is fed by roller 28 so that it tilts a lever arm 41 and so frees the positive sheet. The exposed negative and the positive sheet are then fed past an electrode arrangement 42 so that an induced charge image is formed on the positive sheet and this sheet passes on via rollers 43, 44 through a powderdeveloping unit 46 and an infra-red fuser 53 and is delivered at 49, while the negative sheet is passed down into a receiver 54. Rollers 15, 36 are reversely rotated to act as pick-off rollers to prevent more than one sheet being passed to the blocking elements 23, 38 respectively. The driven rollers are powered by chain drives from the motor shaft 55 and energization of the electrode arrays 22 and 42 is controlled by timers 56 and 57 triggered by tripping of lever 78 or blocking lever 23 and lever 40 respectively. Sheet-stack holders.-As shown, the sheets are urged against the separator roller 18 or 35 by springs 17 which engage a pressure-plate 16 immediately above the roller, but in a modification a pair of U-shaped springs engage the pressure-plate, and a central U-shaped spring engages the sheet stack through a slot in the plate.
Patent GB-201765-A (GB)
Title: Improvements in or relating to appliances or apparatus for facilitating the handling of type matrices
IPC: B41B7/04
Filed: 1922-08-03
Abstract: 201,765. Pierpont, F. H., and Lanston Monotype Corporation, Ltd. Aug. 3, 1922. Single-type composing and casting machines; matrices.-Means for facilitating the removal of matrices from the die-case. of a type composing and casting machine comprises a transferring- frame, a receiving tray or plate, and a lifting-bar for lifting a row of matrices clear of the others so that individual matrices may be removed. The device is particularly applicable for use with a die-case in which the matrices are supported by bars D<3>, Fig. 7, engaging grooves in their sides, and by rods arranged at right-angles to the bars, and passing through apertures therein and in the matrices. The transferring-frame A, Fig. 1, which has slots A<1> to receive the ends of the matrix-supporting bars D<3>, is placed over the character ends of the matrices, and the supporting-rods, which engage holes d<1>, Fig. 7, in the sides of the die-case D, are withdrawn. The matrices are then pushed down into the frame A', as shown in Fig. 7, pushers B<1> on the receiving-tray being conveniently employed for this purpose. The frame A<1> is then inverted on to the tray B, so that the matrices are transferred thereto. The tray has walls B<2> on which rest the ends of the bars D<3>, and may have ribs B<3> for supporting the matrices. The rows of matrices may now be moved apart by means of the bars D<3>, as shown in Fig. 9, and any desired row may be lifted by means of a lifting-bar C, Fig. 6, having pins C<1> to engage the holes in the matrices.
Patent GB-866221-A (GB)
Title: Improvements relating to pit props or the like
IPC: E21D15/58
Filed: 1957-07-04
Abstract: 866,221. Mine roof supports. GUTEHOFFNUNGSHUTTE STERKRADE A. G. July 4, 1957 [July 4, 1956], No. 21253/57. Class 20(2) A pit prop comprising two telescopic parts 1, 2 and a clamp 3 is set and clamped by a removable device comprising a shackle 5 pivoted to a jaw 6 having a hydraulic piston 13 which rests on the clamp wedge 4' through the intermediary of a member 8 having two spring loaded pistons 15. The prop is set by operating a lever 17 to extend the piston 13 and raise the part 1 by the shackle 5. When the prop engages the roof the springs of pistons 15 are overcome and the piston 13 acts to force home the wedge 4. The clamp is freed by opening a cock in the hydraulic system. A set screw may replace the piston 13. Specification 851,859 is referred to.
Patent GB-1401113-A (GB)
Title: Method and apparatus for monitoring the condition of cutting blades
IPC: B23F23/12
Filed: 1973-05-04
Abstract: 1401113 Measuring tool wear electrically GLEASON WORKS 4 May 1973 [8 June 1972] 21347/73 Heading G1N The condition of the tool of a cutting machine is monitored by a frequency analysis of the power taken by the drive motor during the cutting operation. As shown, Fig.1, a watt meter 18 measuring the power taken by the motor driving a gear cutting machine 10 sends an analogue output signal through a low-pass filter 24 and an A-D converter 28 to a computer 36, together with a timing pulse train from transducer 32 defining the instances in the work cycle when the tool is actually cutting. The computer 36 produces a frequency analysis of a selected portion of the load signal, and the amplitudes of the frequency components are added to produce a sum value indicative of the wear of the cutting tool. The wear index is obtained by averaging the wear figure obtained from a number of cutting cycles during the cutting of any one gear-wheel, and a large increase in the wear index indicates the need to change the cutting tool. The number of parts cut is counted at 21 to energize a change cutting tool indication at a pre-set count, if not already called for.
Patent GB-648315-A (GB)
Title: Process of producing magnesium oxide and products resulting therefrom
IPC: C01F5/22
Filed: 1947-08-06
Abstract: Sea water and other solutions containing recoverable magnesium salts are treated with dry calcined dolomite particles, the major proportion by weight of said particles being of a size such that they will sink through the solution and any unreactive particles will settle quickly to the bottom, the precipitate of magnesium hydroxide is washed and filtered, and the resulting paste is calcined, e.g. at 1400 DEG  C., to yield the oxide.  Thus, the calcined dolomite may have a particle size within the range minus 65 to plus 100 mesh per linear inch, or varying from approximately 100 mesh to a coarse granular state and obtained from dolomite of 1/2 inch mesh prior to calcination, which may be effected at about 1200 DEG  C.  An apparatus is shown consisting of four shallow conicalbottomed tanks provided with rotating rakes.  The dry calcined dolomite, suitably at 600 DEG  C., is fed to the first tank containing sea water which has been pretreated with slaked lime or slaked dolomite to remove carbon dioxide and bicarbonates.  Ferric chloride, chlorine and hypochlorites may also have been added. Impurities &c. settle to, and are removed from, the bottom of the tank, and the precipitated magnesium hydroxide and sea water overflow to the second (or thickener) tank, from which the settled precipitate passes in succession through two wash tanks, and thence to a filter, and a calciner.
Patent GB-1018250-A (GB)
Title: High voltage switch
IPC: H01H31/28
Filed: 1964-05-25
Abstract: 1,018,250. High-voltage switches. S. & C. ELECTRIC CO. May 25, 1964 [July 15, 1963], No. 21437/64. Heading H2B. A switch, such as the disconnecting switch associated with a circuit-interrupter as in Specification 966,110, has a pair of inverted U-shaped flexible arcing horns 55 engaging with opposite sides of an arcing tip forming an extension of the free end of a swinging switchblade (not shown) the arms of each arcing horn being of unequal length with the longer arm 58 being fixed and the shorter arm 56 being free to flex when engaged by the arcing tip. The arcing horns are staggered in parallel planes and are interconnected by a tie-bar 64. The switch blade swings about a transverse axis and also turns about its own longitudinal axis to bring contact " ears " into high pressure engagement with fixed main contacts 36 which are U-shaped, interconnected by a pin 43 and a link 46 and reinforced by springs 39. A stop plunger arrests the movement of the switch-blade with a cushioning effect provided by bumper pads.
Patent GB-787414-A (GB)
Title: Garment fitting and pattern making aid
IPC: A41H1/10
Filed: 1955-07-25
Abstract: 787,414. Measuring-apparatus for wearing apparel. FRANKLIN, E. M. July 25, 1955, No. 21453/55. Class 141 Measuring apparatus for application to the person comprises similar front and back assemblages each consisting of two flexible plates 23, 24 which adjustably overlap and fit up to the neck, a depending strip 37 and pairs of horizontal strips 40, 41, 46, 47 and 52, 53 adjustably positioned on the strip 37 and plates 23, 24. Adjustment is effected by engaging bifurcated paper fasteners with series of holes in the various members. An adjustable gauge 100 is provided to fit under the arm, so that the position of the under-arm seam can be marked by a pencil engaged in a sleeve 118 slidable in a slot 120.
Patent GB-170377-A (GB)
Title: Improvements in and relating to trigger relays especially for use in radio communication
IPC: H04B1/16
Filed: 1920-07-17
Abstract: 170,377. Taggart, J. Scott-, and Radio Communication Co., Ltd., and Turner, L. B. July 17, 1920. Thermionic amplifiers.-In an electron discharge device having input and output sides connected so that transference of energy takes place between them, such transference being normally of such sense or magnitude as to maintain stability, the extent of the transference during stability is adjusted by varying electrically the damping of one of the valve circuits. The grid oscillatory circuit L, C, of the valve V2 is coupled to an anode-circuit retro-active coil R, and across the circuit L, C is shunted a valve V<1>. Input potentials applied to AB vary the conductivity of the valve V<1> and produce self-oscillation in the valve V<2>. A potentiometer arrangement P may be used to vary the normal damping effect of the valve V<1>. The invention is not restricted to trigger relays. Specification 130,408 is referred to.
Patent GB-474269-A (GB)
Title: Improvements in and relating to navigational appliances
IPC: G01C21/20
Filed: 1936-08-05
Abstract: 474,269. Calculating - apparatus. BATEMAN, J. W. Aug. 5, 1936, No. 21545. [Class 106 (i)] A device for the solution of triangles of velocity for use in navigation comprises a base board 1, a disc 3 bearing compass card indications 4 rotatably mounted on the base member. and a slidable member 7 bearing velocity scale indications movable in guides 5, 6 formed integral with or secured to the base member. The guides are slotted, recessed or undercut so that the slider 7 is capable of movement without play. As shown in Figs. 1 and 2, the guides are of U -section secured to the base by screws 8 and are provided with zero markings 11, 12 against which the card indications are read. The scales are marked on one or more of the edges of the member 7 so that it may be inserted in a reverse or obverse manner. The disc 3 is formed with a surface which will allow pencil markings to be made and to be easily rubbed off; the surface may have applied thereto a thin film of oily nature such as petroleum jelly. Examples of the use of the device to find the true course and ground speed, or the wind velocity are described ; the device may be applied to the solution of other problems such as problems in interception, radius of action, and the conversion of great circle to Mercatonal bearings.
Patent GB-1029406-A (GB)
Title: Lens system for electron image tubes
IPC: G02B13/16
Filed: 1963-05-29
Abstract: 1,029,406. Lens systems. R. RODENSTOCK, [trading as OPTISCHE WERKE G.RODENSTOCK]. May 29,1963 [May 29, 1962], No. 21546/63. Heading G2J. A lens system for image converters and the like provides a curved image field on surface r 14  of the cathode ray tube and introduces barrel distortion of at least 5% for a 30‹ image angle to correct for the distortion occurring in the electrical transmission of images within the tube. It is characterised by the following:- (a) It consists of two meniscus doublets enclosing the diaphragm space 1 2  with a single converging lens outside of each, a divergent lens being provided near the image surface on the side of the short conjugate (b) 1 2  > 0. 3f (c) the ratio of the surface refracting powers of the Concave surfaces of the doublets enclosing the diaphragm space are at least 2 to 1, the more curved surface r 5  being on the side of the long conjugate (d) the single converging lens on the side of the short conjugate is a meniscus concave to the divergent lens and its thickness d 6  > 0. 2f and (e)2<r 10 /r 9 <5 where f is the overall focal length of the system. Optical data are provided for the example shewn.
Patent GB-186225-A (GB)
Title: Improvements in screw-down valves, cocks and taps
IPC: F16K43/00
Filed: 1921-08-15
Abstract: 186,225. Giles, A. T. Aug. 15, 1921. Closure members.-In a screw-down lift valve of the kind in which the usual valve or jumper c controls a supplementary valve, which closes the passage a when the main valve is withdrawn, the supplementary valve e is pressed towards its seat d by a spring f, but is normally kept within the recess k by means of a rod e<x> which projects upwards into a central opening in the jumper. When the valve c is withdrawn, the valve e is allowed to move upwards and close the fluid passage.
Patent GB-981283-A (GB)
Title: A method for the manufacture of para-(ª‰-hydroxyethoxy) benzoic acid
Inventor: MIHARA KEISUKE
IPC: C07C69/84
Filed: 1963-05-30
Abstract: In the manufacture of para-(beta-hydroxy-ethoxy) benzoic acid para-hydroxy benzoic acid is reacted with ethylene oxide in an aqueous alkaline solution at a temperature of from 60-100 DEG  C. at least one acidic or basic substance being added thereto to maintain the pH within the range of 9.5-11.5 during the reaction to form an alkali salt of para-(beta-hydroxy-ethoxy) benzoic acid and separating the latter from the solution by adding at least one acidic substance thereto.  The para-hydroxy benzoic acid and ethylene oxide are preferably used in the ratio of one mol. of para-hydroxy benzoic acid to 1.1-1.4 mols. of ethylene oxide. The acidic substance may be hydrochloric acid, sulphuric acid, carbon dioxide, sulphur dioxide, para-hydroxy benzoic acid, para-(beta-hydroxy-ethoxy) benzoic acid or a mixture thereof. Several examples are given.
Patent GB-129562-A (GB)
Title: Combined Hair Cutter, Razor and Comb.
Inventor: HAMILTON JAMES
IPC: B26B21/12
Filed: 1918-12-30
Abstract: 129,562. Hamilton, J. Dec. 30, 1918. Combs, hair.-A portion A<1> of a hair comb A is formed with shallow teeth and has a pair of razor blades adjustably mounted upon it so that this end of the comb may be used as a safetyrazor or hair trimmer.
Patent GB-179130-A (GB)
Title: Improvements in means of identifying prepared roofing fabrics
IPC: D06N5/00
Filed: 1921-08-16
Abstract: 179,130. Ruberoid Co., (formerly Standard Paint Co.)., (Assignees of Purdy, A. R.). April 28, 1921, [Convention date]. Identification devices.- Means for identifying the place and time of origin of roofing fabrics comprises a thread 2 or threads of various colours embedded in one of the coatings of the base a.
Patent GB-401247-A (GB)
Title: Improvements in or relating to statement forms, letter sheets and the like
IPC: B42D15/08
Filed: 1933-08-03
Abstract: 401,247. Letter-sheets &c. BARTLETT, I. A., Sandycroft, Hempstead Road, Watford, Hertfordshire. Aug. 3, 1933, No. 21826. [Class 146 (ii).] In a statement form, letter-sheet, or the like of the kind wherein corners or tongues engage slits to effect closure, two oppositely disposed oblique slits 2 are cut in the body of the blank near the respective sides immediately below an imaginary transverse centre line 3, adapted to receive tongues 4 formed one in each of the upper corners of the blank when the latter is folded over in equal divisions, and a space 5 is provided, surrounded by a border line 6, just above the oblique slits to receive a separate sheet of paper, such as a notice, advertisement, etc.
Patent GB-188778-A (GB)
Title: Improvements in anti-fouling and non-corroding mixtures for the treatment of water
IPC: C02F5/08
Filed: 1921-08-17
Abstract: 188,778. Jones, Sir E. R., and Smith, W. S. Aug. 17, 1921. Incrustation and corrosion, preventing.-To prevent or reduce the corrosive or fouling action of water on the walls of a boiler or on brass, copper, tin, rubber, glass, earthenware and the like, a mixture of one or more soluble chlorides and one or more soluble chromates or bichromates is added to the water Sodium, potassium, ammonium or zinc-chromate is preferably used.
Patent GB-1219344-A (GB)
Title: Device for dispensing metered quantities of liquids or fluent solids
IPC: G01F11/26
Filed: 1968-05-08
Abstract: 1,219,344. Dispensing measured quantities of liquids or fluent solids. ENGLISH GLASS CO. Ltd. 6 Aug., 1969 [8 May, 1968], No. 21872/68. Heading B8N. A device for dispensing measured quantities of liquid or fluent solid from a container is adapted to be attached to the mouth of the container and comprises a cup 12 axially slidable within a sleeve 13. The sleeve includes a partition wall 2 slidably received in slots 20 in the cup and dividing the device into two passages 3, 6. Inlet openings 8, 9 in the sleeve are opened to the interior of the device, when the cup is moved upwardly, via apertures 14, 15 in the cup. Lugs 23 on the cup limit its upward movement. In use, when the openings 8, 9 are aligned with apertures 14, 15 inversion of the container will cause liquid or fluent solid to flow into passage 3. Return of the container to its normal position will cause the liquid or solid in passageway 3 to flow into chamber 5, and upon subsequent inversion of the container the liquid or solid in the chamber 5 will be discharged at the same time as a further quantity of liquid or solid is flowing into passageway 3. In an alternative embodiment a sleeve 26 including a partition wall 2<SP>1</SP> is rotatably received within a cup 27. As shown the device is adapted to be a push fit in the mouth of a container. However the device may be attached to the container by being screwed on to an internally or externally acrow-threaded mouth. Only a single inlet opening may be provided. The device when mounted in a container may, when not in use, be covered by a screw-on cap. The device of Fig. 1 may include a spring so that the cup will move to open communication between the inlet openings and the chamber 5 when the cap is removed. Alternatively the device may include a cap which when removed will leave the device in a condition ready for dispensing.
Patent GB-147369-A (GB)
Title: Improvements in or relating to lifting jacks
IPC: B66F3/02
Filed: 1919-09-05
Abstract: 147,369. Lake & Elliott, Lake, A. E., and Powell, A. D. Sept. 5, 1919. Jacks.-In rack- and-pinion jacks in which the rack is extended by a lever or by screw or worm gearing, the actuating - gear is arranged in a casing closed by a movable disk i which forms a bearing for the fixed or rotatable pinion shaft g. A long tooth is provided at the bottom of the rack for preventing disengagement of the rack and pinion. The rack bar a is of round or polygonal cross-section to prevent the teeth from catching the top of the pedestal, and is telescopic. The end p<1> of the actuating arm p, Fig. 9, is formed as a tooth to engage a ratchet-wheel u and is inserted in a socket q formed in an oscillating ring r provided with limiting stops s which cooperate with a fixed stop t. A worm and worm wheel of quick pitch are provided for rapid lowering and a plate friction clutch is provided at the thrust end of the worm for sustaining the load. The worm casing is closed by a cover disk which forms a bearing for the worm shaft.
Patent GB-1066810-A (GB)
Title: Paper or fibre walled containers
IPC: B65D75/04
Filed: 1964-05-27
Abstract: 1,066,810. Tubular containers. R.C. CAN CO. May 27, 1964 [May 27, 1963], No. 21973/64. Heading B8D. A metal end closure (50), Fig. 6 (not shown), of a cylindrical container (19<SP>1</SP>) forms a sealing bead (51) with the container body (34<SP>1</SP>) and is crimped circumferentially to form a protective shoulder (42) which extends further to reinforce a circumferential lip (40). Damage is lessened when the bead of one container rides up the bead of another during rough handling of cartons of containers. The container body is formed by spirally winding a paper outer ply over spirally wound layers of paper and metal foil, the foil forming a lining for the body.
Patent GB-1395035-A (GB)
Title: Bobbins
IPC: B65H75/18
Filed: 1972-05-11
Abstract: 1395035 Bobbins LEESONA CORP 11 May 1972 [21 May 1971 (2)] 22034/72 Heading B8M To convert a tubular bobbin 28 to one having an enlarged tapered base, there is provided a generally continuous frusto-conioal element 34 having a bore centrally therethrough for reception on the tubular bobbin 28 securely at a predetermined locus intermediate the apical end and the base thereof, and strand entraining means e.g. notch 48 formed in the element 34 to engage a strand Y positioned proximate to the element to commence the strand winding on the bobbin during rotation thereof. The element 34 preferably comprises inner and outer walls 40, 42; the wall 40 is tapered internally to mate with the tapered wall of the bobbin, and the wall 42 diverges from the wall 40 and is connected thereto at the base by spaced ribs 46. The inner wall 40 may be extended to engage the base end 30 of the bobbin or be secured thereto by a metal or other ferrule. The element 34 is preferably moulded from thermoplastic material and engaging grooves and ribs 62 may be provided.