baber/WOPTO huggingface dataset:
Patent GB-336300-A (GB)
Title: Improvements relating to anti-dazzle screens
IPC: B60J3/02
Filed: 1929-07-13
Abstract: 336,300. Spencer, H. R. July 13, 1929. Anti-dazzLe screens comprise a single movable member of sheet material characterized by a series of narrow elongated openings or transparent portions arranged at right angles to the direction of motion and having parallel or substantially parallel sides, the member being adapted to be moved in its own plane across the rays of light so that the openings or portions pass the eye at a speed exceding eight per second. As shown in Fig. 3, the member is a disc of dull black celluloid or the like divided uniformly into a number of sectors c by slots e, and is mounted on a ball-bearing d so as to be freely rotatable. In a modification, Fig. 1, the disc, of metal, vulcanite, &c. is composed of closely arranged radial members a intersected by a series of straight or curved members b. In each case the disc may be mounted on the windscreen of a vehicle by means of a suction pad f of indiarubber, the stem of which is drawn through the bore of the bearing d under considerable tension and then released so as to leave an enlargement f<1> at the free end. In another form a series of connected parallel bars is adapted to be moved in a direction at right-angles to their length. Specification 295,103 is referred to.
Patent GB-791201-A (GB)
Title: Improvements in or relating to directly releasable bearing means for rotatable elements, and more particularly for the cylinders of printing machines
IPC: B41F13/20
Filed: 1956-07-12
Abstract: 791,201. Mounting bearings. CIVICCHIONI, A. July 12, 1956 [July 12, 1955], No. 21621/56. Class 12 (1). In a bearing mounting for a cylinder 1, a socket member 2, welded to the end of the cylinder 1, is releasably secured to a rotatably mounted pivot 9 by means of a bolt 14 which passes through the pivot 9. A conical surface 11a on the pivot 9 co-operates with a corresponding surface in the socket member 2 and the surfaces are drawn together by screwing threads 16, at the end of the bolt, into a threaded cylindrical passage in the end of the socket member 2. A washer 12 surrounds a reduced portion 17 of the bolt 14 and is secured to the end of the pivot 9 thereby facilitating axial withdrawal of the pivot 9 when the bolt 14 is unscrewed. The pivot 9 also passes through a rotatably mounted socket 7, carrying a gear wheel 7, and the sockets 2 and 7 are secured to the pivot 9 by two keys 18 and screws 19, 20.
Patent GB-446256-A (GB)
Title: Improvements in and relating to coloured photographic reproductions
IPC: G03C7/00
Filed: 1934-07-25
Abstract: 446,256. Colour photography. MIKUT, P. O., 6, Gerader Steg, Dresden, Germany. July 25, 1934, No. 21778. Void [Abridged as open to inspection under Sect. 91 of the Acts, Jan. 26, 1935].. Drawings to Specification. [Class 98 (ii)] In producing multicolour additive or subtractive pictures from component colourrecord negatives, the design of all apparatus used, including camera, dark slides, developing apparatus, and enlarger, is such that an adjustment made in the step of taking the records, for the purpose of securing correct registration, is maintained during the whole subsequent process of preparing the pictures. Methods of attaining this result are obscurely indicated.
Patent GB-583596-A (GB)
Title: Improvements in or relating to brakes
IPC: F16D55/40
Filed: 1944-11-07
Abstract: 583,596. Brakes. WINGFOOT CORPORATION. Nov. 7, 1944, No. 21865. Convention date, July 20. [Class 103 (i)] In a brake having automatic adjustment-means for taking up wear of the braking surfaces and maintaining a constant "off" clearance, the spring means for separating the braking surfaces is positioned between a member which brings the braking surfaces into frictional engagement and a back-stop which is frictionally held and automatically adjusted, the arrangement being such that a substantially constant maximum distortion of the spring means is maintained. As shown, discs 12 feathered to the wheel (not shown) are engaged by circular friction members or pads 38, 40, 42 held in the torque-taking member 10 which is bored to provide a number, e.g., three, of pressure cylinders 14. Each piston 22 is recessed to accommodate the friction member 38 and a spring-seat member 48 is retained in the piston by a spring ring 52. A piston rod 64 is slidable in a gland 72 in the cylinder head 16 which is secured to a spring ring 20, and an opposed spring seat 58 is adjustably screwed on to the rod 64 and is locked by a nut 66. Springs 56 are arranged circularly between the seats 48, 58 and act to bring the friction surfaces to the "off" positions. The rod 64 protrudes slightly from the plate 58 and contacts with the face 36 of the piston. In operation, the fluid pressure moves the piston towards the discs 12, but the seat 58 and rod 64 remain stationary unless the piston moves through a distance greater than the distance S between the members 48, 58. When this occurs the member 58 and rod 64 are correspondingly moved, in a brake-applying direction. The return of the rod is prevented, when the brakes are released by the adjustable friction of the gland 72, so that the brake clearance corresponding with the distance S is automatically maintained, the maximum distortion of the springs 56 remaining substantially constant.
Patent GB-839815-A (GB)
Title: Improvements in rolls for rolling mills
IPC: B21B27/00
Filed: 1958-07-09
Abstract: 839,815. Rolling. INTER-CONTINENTALER HUTTENBAU ANSTALT FUR BIRATUNG, PLANUNG UND BAU VON STAHLUND METALLINDUSTRIEN. July 9, 1958 [July 11, 1957], No. 22074/58. Addition to 783,525. Class 83 (4). In a modification of the invention claimed in the parent Specification the transverse channels q of the rolls approximate to the depth of the scale layer on the material to be rolled and have, as seen in cross-section, flanks which form an apex angle of at least 100 degrees. The spaces r between each pair of successive channels produce a partial increase and the channels a partial decrease in the rolling pressure as shown at e and i respectively on the pressure curve d and lead to additional consolidation of the rolled surface.
Patent GB-153723-A (GB)
Title: Improvements in and connected with control devices for electrically driven lifts, cranes, winches and like apparatus for dealing with variable loads
IPC: B66C13/24
Filed: 1919-09-08
Abstract: 153,723. West & Co., A., and Breeze, V. Sept. 8, 1919. Systems for continuous-current motors only.- In electrically-driven winches, cranes, lifts, or other devices subject to variable load a high motor speed at light loads is obtained by means of an overload relay which, in accordance with variations in the load current, controls the circuit of the hold-on coil of a lock-out switch the function of which is to insert or cut-out'a diverting resistance in the motor series field circuit to give a speed control. The diverting resistance 2 is shunted across the series field coil F of the motor 1 when the lock-out switch 3 is closed so that the speed is high until the switch is opened. In series with the switch is an overload relay 4 which, when the current exceeds a certain limit, opens the circuit of the hold-on coil 5 and opens the switch 3 to cut out the diverter 2 to give a strengthened field and decreased speed. A master controller M and a series resistance R under control of contacts X - - XIII may be employed in the usual way.
Patent GB-386266-A (GB)
Title: Improvements in prismatic telescopes with right-angled isosceles reflecting prisms
IPC: G02B7/18
Filed: 1932-08-08
Abstract: 386,266. Prismatic telescopes. ZEISS, C., [Firm of], Carl-Zeiss-Strasse, Jena, Germany.-(Assignees of Gruchot, A. ; 3, Darrgasse, Saalfeld, Saale, Germany.) Aug. 8, 1932, No. 22176. Convention date, Aug. 17, 1931. [Class 97 (i).] In a prismatic telescope having right-angled reflecting prisms fixed in the telescope by being pressed against a seat, each of the prisms is so supported that only the part of the hypotenuse surface which lies in the middle between the two reflecting surfaces rests against the appertaining prism seat. In the form shown a is one tube of a binocular telescope having Porro prisms c, d supported by a seat b with plane supporting surfaces b<1>, b<2>. At the centres of the supporting surfaces are fixed tinfoil strips el, e<2> against which rest the portions of the hypotenuse surfaces c<1>, d<1> of the prisms which are opposite the truncated surfaces c<2>, d<2>. The prisms are pressed against these strips by springs f<1> f<2>. Instead of using the strips, each supporting surface may have its central part raised above its outer parts, e.g. it may be made of vaulted form. In another form each prism has in the centre of its hypotenuse surface a recess which passes over a wire on the seating. In a further form the seat is plane and each prism has at the centre of its hypotenuse face a glass strip which may be cemented to the face or be integral therewith.
Patent GB-881733-A (GB)
Title: Improvements in and relating to displays and signs
Inventor: SAUNDERS HUGH CECIL
IPC: G09F13/26
Filed: 1957-07-12
Abstract: 881,733. Signs. NEON EXCELDA Ltd. Oct. 10, 1958 [July 12, 1957], No. 22239/57. Class 3(2). An illuminated sign comprises a transparent or translucent three-dimensional representation 1 secured to an opaque member 2 having a transparent area 3 delineated by diffuse lines. The member 2 is backed by a diffusing screen 4 of ground glass and is mounted in a vented housing 5. The light may be a fluorescent light or may be generated from oil or gas and the interior of the housing may be coated with a reflective material and provided with a power driven ventilating system. The member 1 may be made of methylmethacrylate and be. of rectangular, prismatic or semi-circular crosssection, either solid or hollow and coloured as desired. A colour filter may be disposed between the members 2, 4.
Patent GB-645012-A (GB)
Title: Improvements in and relating to electric impedance networks
IPC: H03H5/02
Filed: 1947-08-11
Abstract: 645,012. Impedance networks. TELEPHONE MANUFACTURING CO., Ltd., and SARAGA, W. Aug. 11, 1947, No. 22273. [Class 40 (viii)] A variable impedance network having a characteristic α=αo+20 log 10  1+γA/γ+A, where α is the attenuation in decibels, αo and A are functions of the frequency and y is a real parameter independent of the frequency, includes an impedance Zn, the current flow through which is independent of its value, and. which varies according to the relation Zn= Zo(γ+A)/1 Î γA. In such a network the ratios of changes of attenuation at all frequencies are the same. In the network shown in Fig. 2, 10 is a voltage source, 11 is a resistance, and Z an impedance, the sum of these being large compared to Zn so that the voltage across the latter is proportional to its impedance. Further, Zn is formed, as shown in Fig. 3, by utilizing two terminals of a four-terminal network with the remaining terminals bridged by a variable resistance 22. These arrangements form a network conforming to the conditions of the invention and useful as a regulating network in a telephone system. The networks described in Specification 645,011 are also suitable for use as impedance Zn in the above arrangement.
Patent GB-984354-A (GB)
Title: Improvements in or relating to implements for displacing crop lying on the ground
IPC: A01D78/00
Filed: 1961-06-20
Abstract: 984,354. Haymaking machines. C. VAN DER LELY N.V. June 20, 1961 [June 20, 1960], No. 22275/61. Heading A1F.  In a rake-wheel type of haymaking machine the rake-wheels 14 are mounted on cranks 23 and co-operate with means for simultaneously varying their inclination to the ground without altering their inclination to the direction of motion. The machine-frame is J-shaped in plan and comprises two parallel superimposed beams 1, 2 interconnected by vertical bars 3. The device is mounted on three ground-wheels 4, 5, 48 of which the two front ones are castors and have elements 8, to which a drawbar 10 may alternatively be attached, to connect the machine to the drawbar 12 of a tractor 13. The rear wheel 48 (Fig. 11) is mounted on a stubaxle 47 pivotable about a vertical shaft 49 and securable by a lever 53 and sector 50. The shaft is attached to a stub axle 46 received in a bushing 44 on the frame to which it is secured by a pin 54, which can pass through the bushing and axle in two alternative positions 180 degrees apart, corresponding to the positions 48, 48A of the ground-wheel. The rake-wheels are mounted on cranks 23 pivoted on the ends of arms 21 and suspended by springs 25 from'brackets 27 integral with the arms 21. The arms 21 can swivel about vertical axle-portions 17 of arms 15 which are pivoted about pins 16 on the lower framemember 2 and have U-shaped upper portions 18 embracing the upper member 1. The tops of all the portions 18 are secured by pins 20 to a bar 19 connected to a lever 35 and detent 38 on the frame, so that movement of the lever tilts the arms about the pins 16 and hence the angles rakewheel planes to the vertical. The arms 21 are also swivellable in unison about the parts 17 by means of extensions 28 which have ball-and-socket connections 29 with a rod 30, One of the extensions 28 cooperates with a sector 31 to hold all the arms and cranks either in the position of Fig. 1, for tedding, or in a position of greater obliquity (Fig. 2, not shown) for side-delivery. Specification 984,354 is referred to.
Patent GB-385562-A (GB)
Title: Improvements in or relating to devices for the control of extraction and steam admission valves of steam turbine installations
IPC: F01K7/34
Filed: 1932-08-10
Abstract: 385,562. Governing steam-turbines. SCHNEIDER ET CIE, 42, Rue d'Anjou, Paris. Aug. 10, 1932, No. 22414. Convention date, July 7. [Classes 57 and 110 (iii).] Relates to the control of interconnected valves for turbines and is described in connection with the application to (a) the control of two extraction valves for different pressures ; (b) the control of an admission valve and an extraction valve, and (c) the control of the valves of a mixed-pressure turbine. The balance beam which is acted upon by the speed and other governing mechanisms is pivoted at its ends directly to the needle valves of the servo-motors controlling the valves concerned. Fig. 1 shows the application to the valve gear of a double extraction turbine having an admission valve S, and interstage or overflow valves S<1>, S<2> at different extraction points T, U. The servo-motor M, A of the speed governor V positions the fulcrum e of a floating lever E, and also, through springs R3, the fulcrum o of a floating lever O. The ends of the lever E are connected to the stems of the admission valve S and interstage valve S<2>. The ends of the lever o control the needle valves C<1>, C<2> of the servo-motors B<1>, B<2>, which actuate the interstage valves S<1>, S<2>. The pivot o of the lever O may also be displaced by a servomotor P<1> which is responsive to variations in pressure at the extraction point T, and the lever is rocked bv a servo-motor P<2> which is responsive to variations in pressure at the extraction point U. Fig. 2 shows the application to a single extraction turbine having an admission valve S actuated by a servo-motor B<1> and an interstage valve S<2> at the extraction point U actuated by a servo-motor B2. The speed governor V, through its servo-motor M, A, positions the fulcrum o of the lever O, the ends of which control the needle valves C<1>, C<2> of the devices B<1>, B<2>. The lever O may be rocked by a servo-motor P<2> which is responsive to variations in pressure at the extraction point U. This arrangement may be applied to a double-admission turbine, low pressure steam being admitted by the valve S<2>, and high pressure steam, when required, by the valve S. Adjustable members V<1>, V2 are provided in the governor linkage.
Patent GB-367397-A (GB)
Title: Improvements in tunnel kilns with multiple conveyor tracks
IPC: F27B9/32
Filed: 1930-09-15
Abstract: 367,397. Tunnel kilns. HARTFORD, F. M., 310, West Broad Street, Columbus, Ohio, and KIER, S. M., Salina, Pennsylvania, both in U.S.A. Sept. 15, 1930, No. 22420/31. Divided on 365,614. [Class 51 (ii).] In a tunnel kiln for the heat-treatment of ceramic ware, the ware settings are mounted with intervening vertical spaces 36 on conveyers 7 moving on spaced trackways, between which is a hollow divisional wall 29 provided with perforations in order that hot gases may be withdrawn from, or cooling air supplied to, the tunnel through it. In the kiln shown, fuelfeeding devices 38<1> discharge through the roof into the spaces 36, as described in Specification 365,614.
Patent GB-385563-A (GB)
Title: Tufting device
IPC: D05C15/06
Filed: 1932-08-10
Abstract: 385,563. Tufting-tools. GEARHART, E. J., 110, Nichols Street, Clearfield, Pennsylvania, U.S.A. Aug. 10, 1932, No. 22434. Convention date, Aug. 11, 1931. [Class 112.] A tufting-tool for mat-making comprises two telescopic tubes, the inner carrying the threaded needle and having a spring- pressed loop-retaining rod therein, depressed by a pinion rotated by a rack on the outer tube. The operation is as follows. The tubes 1, 5 are locked together by a bellcrank catch 35, 37 entering a notch 36. In this position the needle eye 21 is unobstructed and can be threaded, the end of the loop retaining rod 23 being clear. The needle is forced into the fabric f till the lower end 39 of the holder 16 at the base of the inner tube touches the fabric. Further pushing causes the tube 5 to be pushed farther into the tube 7 against the spring 13. This causes the anticlockwise rotation of the pinion 11 on the fixed rack 4, causing the looper 23 to slide farther into the inner tube and causing the bevelled aperture 36 to free the lever 35, 37, which drops into contact with the stop 40 owing to the weight of the arm 37. This arm forms a guide eye for the thread y from the spool on the pin 3. If the pressure is now released, the spring 13 causes the tube 1 to rise on the tube 5, causing the rack 4 to rotate the pinion 11 clockwise. This slides the looper 23 downwards to hold the loop in the hole in the fabric made by the needle. The looper 23 slides in a slot 22 in the needle 18, Fig. 9, and is arrested when its shoulder 25 touches the fabric. The continued pressure of the spring 13 then causes the whole tool to move upwards till the needle is clear of the fabric. The needle and looper have relative play determined by the set-screw 38, Fig. 9, to determine the length apart of the tufts. The pressure is then again applied to the tool to form the next tuft or loop, the looper leaving the first loop when the needle has penetrated the work, and subsequently engaging the second loop while the needle rises. The tool is thus automatically withdrawn from the work by the spring 13. When the base fabric is very fine, apertures may be made in the tube 1 to enable it and the inner tube to be held firmly together during the penetration, or a leaf spring 44, Fig. 11, released by a slide 46 which contacts with the fabric after penetration of the needle, may be provided.
Patent GB-206932-A (GB)
Title: Improvements in or relating to stapling-machines
IPC: B25C5/16
Filed: 1922-08-18
Abstract: 206,932. Wade, H., (Boston Wire Stitcher Co.). Aug. 18, 1922. Stapling, hand tools for.-A stapling-machine for fastening papers or the like, having a pivoted arm and sliding staple-driver, has the parts made of sheet metal including a magazine for holding and feeding finished wire staples. The machine consists of a sheet metal base 2, Fig. 2, with lugs 5 to which is pivoted an arm 3 consisting of sheet metal side plates 7 spaced apart by rivets 8. At the front end of the arm 3 are parallel uprights 22, formed by bending the metal of the side plates, having guideways 26, Fig. 5, for the staple driver. The side plates 7 also have corresponding guiding grooves. The staple driver has grooved edges formed as plates 31 &c. adapted to slide in the guideways, and is provided with a sheet metal knob 33, Fig. 2, with depending portions 36 fastened to the driver by lugs 44. The driver is retracted by a spring 40 housed in a socket 41 loosely mounted between ears on the uprights 22. Finished staples s are mounted on a sheet metal core 15 along which they are fed by a pusher 12, impelled by a flat spring 11. The spring is attached to the pusher by notches on the spring engaging straps 50. Fig. 5, slit out of the metal of the pusher and pressed down. The forward end of the spring is wound round a hub 55, Fig. 2, formed by bending a strip of sheet metal into a tube with one end of the strip bisecting its interior at 56. The spring is passed round the hub and in and down under the cross strip 56, and its end turned over at 60 to hold it. The hub is held loosely in notches on the uprights 22, preventing its rotation. The arm 3 is raised by a spring 75 passing under a pivot pin 6 and engaging a rivet 8 between the plates 7. The staple ends are clinched in a slightly grooved block 70 in the base 2.
Patent GB-911714-A (GB)
Title: Degassing steel
IPC: C21C7/10
Filed: 1960-06-28
Abstract: 911,714. Degassing steel. CENTRE NATIONAL DE RECHERCHES METALLURGIQUES, June 28, 1960 [July 3, 1959], No. 22571/60. Class 72. Dissolved gases, e.g. oxygen, nitrogen or hydrogen, are removed from molten steel by causing it to flow through two chambers in succession and to form a liquid plug in a duct 4 connecting the two chambers so as to seal the one from the other. The second chamber 1 which can be arranged to house ingot moulds 2 for teeming under the duct 4, is connected via union 9 to an intermediate stage 13 of a multistage vacuum pump, while the first chamber 5, fixed on the cover of chamber 1 is connected via union 7 to the final stage 11 of the vacuum pump (four stages are exemplified in the drawing). The top of chamber 5 is provided with an elastic sealing ring 18 so that when a bottom pour ladle 19 is placed on top of the chamber a seal is made to prevent air being drawn in. A duct 16 with a gas valve 17 is provided for equalizing pressures in the two chambers.
Patent GB-823346-A (GB)
Title: Method and device for opening out the lateral folds in the manufacture of block-bottom bags
IPC: B31B50/78
Filed: 1957-07-17
Abstract: 823,346. Making paper &c. bags. WINDMOLLER, A., and GENNERICH, M. [trading as WINDMOLLER & HOLSCHER]. July 17, 1957 [July 27, 1956], No. 22641/57. Class 94(2). In a method of opening out the lateral folds in the manufacture of block-bottom bags by means of pairs of grippers on a bottom-making cylinder and an opening roller, the following piece of tube is additionally accelerated in the feed direction during the opening, so that the transverse crease is raised into the plane of the bottom which is being formed. The folded tube 5, Fig. 3, is held on the cylinder 1 and roller 6 and the folds opened out by grippers 2, 3, 7. The transverse crease 10, 11 is raised into the plane of the bottom by a rod 18 mounted in the cylinder and actuated by a stationary cam 27 to accelerate the tube during the opening. The rod may be actuated from the roller 6, or one rod from each side. In another form, Fig. 4, the acceleration is produced by a pair of roller members 29, 30 rotated by a belt 49 and intermittently actuated by a rotating cam 45 to cooperate with freely rotatable segmental discs 31, 32, whereafter the discs are restored against stops 35, 36 by tension springs 33, 34. The duration of the acceleration is adjustable by a circumferentially settable member 40. Solid discs may be used instead of segmental discs.
Patent GB-1330562-A (GB)
Title: Purification of crude phthalic anhydride
IPC: C07C51/573
Filed: 1971-04-19
Abstract: 1330562 Purifying phthalic anhydride BADISCHE ANILIN- & SODA-FABRIK AG 19 April 1971 [28 Feb 1970] 22672/71 Heading C2C Phthalic anhydride, obtained by the catalytic oxidation of o-xylene or naphthalene with air in the gas phase, is purified by removing the solids contained therein and then continuously distilling the crude phthalic anhydride. Solid filtering media e.g. activated charcoal, silica gel, diatomaceous earth, may be coemployed to facilitate separation.