baber/WOPTO huggingface dataset:
Patent GB-359519-A (GB)
Title: Improvements in control gear for projectors of talking films
IPC: G03B31/00
Filed: 1930-07-11
Abstract: 359,519. Kinematograph apparatus. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and PETERS, W. H., of General Electric Co., Wembley, Middlesex. July 11, 1930, No. 21010. [Class 97 (i).] Change-over from one projector to another, together with change-over from one sound-reproducing apparatus to another, and volume control of the output, is effected as desired by a device comprising a switch arm which has both rotary and lateral motion and works in a casing having an H-gate. Fig. 1 (Prov.) shows the arrangement of the arm a in the gate, the arm being mounted on a shaft to which rotary movement is imparted as the arm is moved up or down either of the vertical slots, and axial movement is given by passing the arm through the horizontal slot. The arm a has a pushbutton b which controls the motors of the two projectors through a commutator C, Fig. 2 (Comp.), having contact segments 9 .. 13, connected in circuit as shown with the mains 15, 16 and with starter switches 17, 18 for the two projectors respectively. A contact 14 associated with the arm a bridges segments 9 and 12 or 9 and 13, according to the position of the arm, while segments 10 or 11 are connected to the segment 9 only when the button b is depressed. The arrangement is such that, when the arm is in the upper half of either of the vertical slots of the gate, starter switch 17 is closed, and the motor and projector associated with it are running : soundreproduction is effected from a disc record, when the arm is in the right-hand slot, and from a film record, when the arm is in the left-hand slot. To change over from the first projector to the other, the button b is depressed, closing the circuit of the starter switch 18 of the second motor through the segments 9, 11. With the button still depressed, the arm a is swung down to the lower half of either vertical slot. The switch 18 for the motor of the second projector then remains closed through the segments 9, 13, and the pressbutton is released. The movements of the arm also control a commutator 5, Fig. 1 (Comp.), which according to the position of the arm, either connects the gramophone pickup D<1> or the sound film reproducer F<1>. associated with one projector, to a volume-control potentiometer 8, or connects the pick-up D<2> or sound-film reproducer F<2> associated with the other projector, to the potentiometer 8. The latter, which is connected to an amplifier 7 operating loud-speakers S, comprises a slider contact operated by movement of the arm a in the vertical slots of the gate, the arrangement being such that when the arm is at either extreme position the maximum volume is reached, and when the arm is at the central position the volume is zero. The volume of sound is controlled by proper adjustment of the arm in the selected branch of the H-slot.
Patent GB-597433-A (GB)
Title: Improvements in and relating to an optical instrument for measuring lengths
IPC: G01B11/24
Filed: 1945-08-17
Abstract: 597,433. Optical gauging-apparatus. SOC. GENEVOISE D'INSTRUMENTS DE PHYSIQUE. Aug. 17, 1945, No. 21083. Convention date, Oct. 18, 1944. [Class 106 (ii)] Optical gauging-apparatus, particularly for measuring the diameter of internally threaded articles, comprises a feeler 3 carried by a lever 4 supported pivotally by a carriage 7 enclosed and movable within a tube 15. The carriage is supported by a flexible tape 7a passing over rollers 21 and acted on by a spring 22, whereby when the feeler is brought up against a thread, the carriage can adjust its height automatically to enable the feeler to reach the base of the thread. An image of a reticule 17 is projected via a prism 19 on to a mirror 9 carried by the lever 4 and so is reflected on to a screen 18 observed through an eyepiece 23, whereby the support 24 can be adjusted by a micrometer screw 26 until the lever 4 is vertical and the feeler 3 is engaging the base of the thread. The difference of the readings on the micrometer 26, when opposite ends of the feeler 3 are made to engage opposite sides of the screwthread, and the known length of the feeler 3 gives the internal diameter.
Patent GB-168872-A (GB)
Title: Method of, and apparatus for, coating wires and the like
IPC: B29C70/68
Filed: 1921-08-11
Abstract: 168,872. Soc. Chimique des Usines du Rh¶ne, (formerly Soc. Chimique des Usines du Rh¶ne, anciennement Gilliard, P. Monnet, et Cartier). Sept. 4, 1920, [Convention date]. Coating materials in long lengths.-Wire is passed through liquid material free from applied pressure in a vessel c and then centrally along an interchangeable nozzle d of such diameter that the liauid is drawn into it by the wire. It then passes through a small hole in a plug k, past a pipe g connected to an air pump, and then along a pipe f in which it is dried by warm air. In order to prevent congealing of the liquid at the lower end of the tube d when the wire is stationary, the air in a chamber g' surrounding the tube end is kept saturated with the vapour of the solvent employed to liquefy the material in the vessel c. The upper end of the tube d may be funnel-shaped. The chamber g<1> is laterally adjustable.
Patent GB-758604-A (GB)
Title: Improvements in or relating to releasable latch support for panel ceiling
IPC: F24D3/16
Filed: 1954-07-22
Abstract: 758,604. Catch fastenings. BURGESSMANNING CO. July 22, 1954 [Aug. 18, 1953], No. 21403/54. Class 44. [Also in Groups X and XIII] In a panel ceiling for a heat transfer system including a plurality of spaced-apart fluid conducting pipes 17 and a plurality of panels 11 arranged in a plane underlying the pipes to form a ceiling surface, releasable latch support means for the panels comprise integral flanges 14 disposed at opposite edges thereof, the flanges having extremities 22 turned back over the panels and curved with outward facing concavity into an are of approximately 90 degrees or less and spring clips 23 having generally circular clamp portions 24 almost encircling the pipes and holding the curved flange extremities 22 firmly against the pipes and having legs 25, 26 flaring outwardly from the clamp portions towards the panels. The clamp portion of each clip is slightly elongated to provide a space 30 on each side of a pipe, these spaces assisting the withdrawal of a panel from the clip. The legs 25, 26 may be curved instead of cranked as shown. Flanges may be provided on all four sides of a rectangular panel so that the panels may be used with either closely spaced or widely spaced pipes.
Patent GB-983249-A (GB)
Title: Method and apparatus for trepanning tapered metal shapes
IPC: B23B27/00
Filed: 1961-06-14
Abstract: 983,249. Making hollow or cupped articles; turning; breaking. BRUSH BERYLLIUM CO. June 14, 1961 [Sept. 20, 1960], No. 21444/61. Headings B3A, B3B, B3E and B3T. A billet is subdivided into a number of workpieces having conical walls by forming spaced coaxial conical kerfs in the billet and separating the workpieces from the billet. In this way frusto-conical shells are formed from a hollow billet or cup-like or conical workpieces are formed from a solid billet. The separating is performed by cutting or breaking or by continuing the kerfs through the wall of the billet. Kerfs are formed in a beryllium billet 1, Fig. 1, secured on a rotating table T by a trepanning tool 10 mounted on a slide 11. No lubricant is used and the waste chips are extracted by suction into a container 54. The tool 10, Figs. 5 and 7, has a thin elongated body 20 of shallow elongated concavo-convex cross-section with a shank 22 at one end and a cutting head 32, Fig. 10, secured to the other end. The cutting tip 39 is welded or brazed to the head 32 and has cutting edges 41, 43 preferably shaped as in Fig. 10. Carbide pads 45 secured to the body 20 locate the body within the kerf. A suction tube 50 is attached to the leading edge of the body 20 to extract the waste chips. Each kerf may be cut by two tools spaced 180 degrees apart. The cutting tips are shaped as shown in Figs. 13 and 14 so that one tool cuts the central portion of the kerf while the other cuts the edge portions. It is stated that the kerfs can be cut outwardly from the inner periphery of a hollow billet. Specification 842,226 is referred to.
Patent GB-204686-A (GB)
Title: Welded butt-strap connection for sheet-metal
IPC: F16B5/08
Filed: 1923-08-25
Abstract: 204,686. Hoehn, E. Sept. 28, 1922, [Convention date]. Uniting by fusion. - In a welded butt-strap connection for sheet metal joints, particularly for hollow-ware, free spaces are left between the connecting positions which are welded to the sheets and bridge the joint, so that the joint may be left visible and can thus be examined. The sheets a, b, Figs. 2 and 3 are placed together and may have a free, cemented, or welded joint c, and the butt-strap may consist of metal parts d, alternately on opposite sides of the joint and welded round their edges so as to increase the strength thereof. The parts d may be rectangular and placed either along or diagonally with respect to the joint. In another form the centre portion, Fig. 7, may be corrugated so as to be raised above the joint. The distance between the successive parts d may be greater than or less than their length. Some or all of the parts may be partly or wholly welded to the sheets before the joint is welded so as to avoid warping when the joint is welded. In a further form, Fig. 10, a butt-strap f with holes g is placed along the joint on one side, with or without a similar butt-strap staggered with respect thereto on the other side, the straps being welded at their edges, also around the holes. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification in which a perforated buttstrap is placed on one side of the joint and an ordinary butt-strap on the other side. This subject-matter does not appear in the Specification as accepted.
Patent GB-845586-A (GB)
Title: Improvements in or relating to indoline compounds
Inventor: FICKEN GEOFFREY ERNEST
IPC: C07D209/30
Filed: 1957-07-08
Abstract: Compounds of the general formula:  <FORM:0845586/IV(b)/1> wherein R1 i an alkyl groups are prepared by condensing a 1-alkyl-indoline-2-thione with acetone in the presence of a basic condensing agent such as piperidine.  An example is given wherein R1 is methyl.  According to the Provisional Specification, any ketone of the formula R2CH2COCH2R2 (where R2 is an alkyl group) may be used instead of acetone. p  Specifications 845,587 and 845,588 are referred to.ALSO:Compounds of the general formula:  <FORM:0845586/IV (c)/1> wherein R1 is an alkyl group are prepared by condensing a 1-alkylindoline-2-thione with acetone in the presence of a basic condensing agent such as piperidine.  An example is given wherein R1 is methyl.  According to the Provisional Specification, any ketone of the formula R2CH2 CO CH2R2 (where R2 is an alkyl group) may be used instead of acetone. Specifications 845,587 and 845,588 are referred to.
Patent GB-1142175-A (GB)
Title: Self-tapping screw
Inventor: MUNSEY ROBERT JACK
IPC: F16B25/00
Filed: 1967-05-10
Abstract: 1,142,175. Self-tapping screws. EATON YALE & TOWNE Inc. 10 May, 1967 [10 May, 1966], No. 21679/67. Heading B3N. A self-tapping screw is produced by rolling a thread on a screw blank 16, so that a portion H has a conventional thread, portion T is of lobular form for swaging, and portion P provides a pilot portion. The crests 26, Fig. 5, on portion T which are situated between flat areas 22, Fig. 3, are concave.
Patent GB-572482-A (GB)
Title: Improvements in or relating to arrangements of ball-bearing and roller-bearing assemblies for rotating types of machinery
IPC: F16C35/06
Filed: 1943-12-28
Abstract: 572,482. Bearings. CHAPMAN, L. A. Dec. 28,1943, No. 21707. [Class 12 (i)] Annular caps for ball or roller bearings engage shoulders on the rotating shafts to provide emergency bearings on breakdown of the main bearings. The main bearings 3 abut shoulders 16 on the shaft 1 whilst the annular caps 8 abut shoulders 14. The end cap-6 may form a bearing for the end 18 of the shaft, and it may be annular for a shaft extension. The caps 6, 8 are recessed into the same or opposite sides of the housing 2, and may be formed of or lined with bearing metal.
Patent GB-1383016-A (GB)
Title: Two-stroke internal combustion engine
IPC: F02B75/02
Filed: 1972-05-10
Abstract: 1383016 Two-stroke engines T K TONNESSEN 10 May 1972 [3 June 1971] 21859/72 Heading F1B Air drawn into the combustion cylinder 12 below the piston 52 through valves 62 on the compression stroke is displaced on the power stroke into a chamber 16 having a piston 70 subject on its upper surface to the air pressure in a manifold 76. On the compression stroke of the piston 52, the piston 70 is moved upwardly by a member 78 to draw air into the chamber 16 through the valves 88. When the piston 52 uncovers the ports 60 the piston 70 displaces air from the chamber 16 into the cylinder 12 and exhaust gases are discharged through the valves 56. A conduit 90 connecting the cylinder 12 and chamber 16 has a valve 92 for regulating the pressure acting above the piston 70 in accordance with engine load. The piston 70 and member 78 are shaped to provide an impact cushioning air cushion therebetween. The chamber (16a), Fig.3 (not shown), receiving air from beneath the working piston (52a) may be annular and surround the combustion cylinder (12a). The cylinder 12 has a fuel injector 58 and the air  drawn through the valves 62 and 88 may be from a source of cooled and/or filtered air.
Patent GB-203495-A (GB)
Title: Improved operating gear for bulkhead and like "doors for ships"
IPC: B63B19/00
Filed: 1922-08-12
Abstract: 203,495. Broadfoot & Sons, Ltd., J., and Appleby, J. H. Aug. 12, 1922. Operating doors by toothed gearing and by screw-and-nut mechanism.-The divided-nut segments B are movable into and out of gear with the screwed door-operating shaft A by means of a squared shaft L on which is slidably mounted a pinion K carried by the door. The pinion K is in gear with toothed wheels H through a pinion J, the wheels H being screw-threaded for engagement with screwed spindles G carried by blocks D slidable in guides. The block members have inclined slots with which engage pins F on the nut segments B. By this arrangement, rotation of the shaft K in one direction moves the blocks downwardly to free the segments B from the shaft A; the door is then free to fall into the closed position. A reverse movement of the shaft K effects a re-engagement of the screw and nut members A, B for the normal opening and closing movement of the door. The shafts A, L are operable locally, or from a distance through suitable gearing.
Patent GB-222135-A (GB)
Title: Improvements relating to apparatus for converting electric currents
IPC: H02M7/54
Filed: 1924-09-18
Abstract: 222,135. Coninck, M. de. Sept. 18, 1923, [Convention date]. Commutator switching - arrangements; polyphase transformers. - The synchronous motor M driving the commutator R of a resistance converter of the kind described in Specifications 169,694 and 220,658 is placed in parallel with the commutator. Reactances s for limiting the 5th, 7th and other harmonic currents, not multiples of three, may then be inserted on the alternating-current side of the apparatus without producing phase displacements between the motor and commutator. The third harmonic current and its multiples mav be eliminated by connecting the brushes a<1> .. c<1> of the commutator to a threephase winding a .. c on the alternating-current apparatus A, as shown in Fig. 1. In another arrangement, the third harmonic currents are limited by employing three mono-phase transformers with star-connected primary windings and independent secondary windings connected to three pairs of brushes. In a modification of this arrangement, Fig. 4, a three-phase transformer with magnetic shunts F, F<1> is employed, the secondary windings being connected through reactances s to the brushes of the commutator and to the field winding of the synchronous motor.
Patent GB-202832-A (GB)
Title: Improvements in tabs for player piano rolls
IPC: G10F5/04
Filed: 1922-08-14
Abstract: 202,832. Isenberg, R. A. Aug. 14, 1922. No Patent granted (Sealing fee not paid). Tune sheets.-A tab for the end of music-rolls is formed of two body portions 8 connected by an elongated web 9 which is folded on itself to bring the body portions into coincidence on either side of the tune sheet and to enclose the ring 10 by which connection is made with the take-up spool. The body portions 8 preferably have wings 12.
Patent GB-478524-A (GB)
Title: Improvements in classifying apparatus
IPC: B03B5/50
Filed: 1936-08-11
Abstract: 478,524. Gravity-separation apparatus. BRITISH GECO ENGINEERING CO., Ltd., CALLOW, M. G., and RUSSELL, C. H. Aug. 11, 1936, No. 22132. [Class 46] [Also in Group II] In apparatus comprising a tank into which finely divided solids suspended in liquid are fed, the tank having a sloping bottom 1 up which the heaver particles are carried by a reciprocating rake 7 to discharge at the end 2 while the lighter particles overflow at the other end 3, the sides of the tank are made to flare outwardly towards the overflow end 3 with a corresponding widening of the bottom. The rake structure 7 is formed to reciprocate over and sweep substantially the whole of the tank bottom. In the form shown the sides are parallel for a short distance from the end 2 and then flare outwardly at 5 to give a long overflow at the end 3, which may be extended by making the end 3 curved or by utilizing a small length 6 of the sides adjacent the end 3 as an additional overflow. The rake structure 7 is carried on each side by brackets 11, 15 on which are adjustably mounted bell-crank levers 10, 14 joined by a link 13 and connected to links 12, 16 pivoted to the framework of the tank 1.
Patent GB-726393-A (GB)
Title: Improvements in or relating to circuit arrangements for stopping selectors which aredriven by a plurality of alternately operating magnets
IPC: H01H63/20
Filed: 1953-08-11
Abstract: 726,393. Automatic exchange systems. SIEMENS & HALSKE AKT.-GES. Aug. 11, 1953 [Aug. 11, 1952], No. 22135/53. Addition to 716,452. Class 40 (4). A switch which is driven by two magnets M1, M2 alternately energized over mechanically-controlled contacts m1 m2 is stopped by bridging the opened contact through a valve which has two anodes, one for each contact, so that the two magnets are energized simultaneously. The alternate opening of the contacts causes the associated anodes to have their potentials changed in turn from an inoperative to an operative value. As shown, a switch is started by a relay An which is pulled up over a relay C (not shown) when the circuit is taken into use. When a free outlet is found by wiper c, the characterizing potential ( - 60 volts) causes a voltage pulse to be induced in the secondary winding W2 of a transformer T which is applied to grid G1 of a double-anode gas-discharge valve G. This pulse neutralises a disabling bias ( - 80 volts) and fires the tube over the anode A1 or A2 which has an operative potential at the time, provided that the disabling bias ( - 80 volts) at a grid G2 is suppressed at the same time by an inductively-generated pulse arising from disconnection of a drive magnet and applied over a condenser C1 or C2. Due to the transient nature of the grid potential variations the testing time is restricted. The valve current consequent on a successful test causes simultaneous energisation of both magnets and operation of relay P which disables An and establishes a busy marking (0 to - 7 volts) at wiper c over a holding winding II. The valve current through a secondary winding W3 induces a voltage pulse in the transformer primary winding W1 which temporarily busies the outlet during the operating time of P. To prevent minor voltage changes during successive tests of busy outlets from influencing the valve, the test circuit is connected to a neutralizing potential ( - 8 volts) through a rectifier GL3. The effects of different line impedances is also neutralized by a further grid G3 which is energized over rectifiers GL1, GL2; this grid also ensures that the valve is not fired by a change of potential on one other grid only.
Patent GB-412059-A (GB)
Title: Improvements in or relating to ball or float-operated valves or cocks
IPC: F16K31/24
Filed: 1933-08-08
Abstract: 412,059. Ball and float valves. ESSEX, G. A., Trafford Park, Penrhyn Bay, Llandudno, Carnarvonshire. Aug. 8, 1933, No. 22209. [Class 135.] In ball and float valves of the type in which the inlet e is closed by a rubber or other flexible diaphragm m engaged, directly or through the medium of a floating spider or washer t, by the pivoted float-arm r, o, adjustment is provided by a screw q and lock-nut s on the float arm.
Patent GB-1135784-A (GB)
Title: Improved heparin and heparinoid compositions
IPC: A61K47/20
Filed: 1966-05-19
Abstract: 1,135,784. Anticoagulants. CANADA PACKERS Ltd. 19 May, 1966 [20 May, 1965], No. 22378/66. Heading A5B. Anticoagulant compositions with sustained action suitable for oral, parenteral or rectal administration comprise (a) heparin or a heparinoid e.g. #-heparin and levan sulphate; (b) an agent for promoting the absorption of the anticoagulant activity of (a) through the wall of the intestinal tract, said agent being a dialkyl sulphoxide having from 1 to 12 carbon atoms in the alkyl groups or a sulphone having the formula R 1 R 2 SO 2  wherein R 1  and R 2  are alkyl, alkenyl, or aralkyl of up to 12 carbon atoms, or where R 1  and R 2  together with the sulphur atom form a saturated or unsaturated ring containing 4 or 5 carbon atoms, and (c) a fatty alcohol of chain length C 14  to C 24 . Component (c) is preferably cetyl, arachidyl, oleyl, stearyl or behenyl alcohol or mixtures thereof and (b) may be di-n-butyl, di-n-propyl or diethyl sulphone, sulpholane, sulpholene and dimethyl, di-n-propyl, or di-n-butyl sulphoxide. Suitably 5 grams of (b) and 0.1 to 2 grams of (c) are present for each 100 mg. of component (a). The compositions may also contain water and are suitably in the form of emulsions which may be encapsulated in gelatin capsules which are enteric coated.
Patent GB-1001685-A (GB)
Title: Improvements relating to partitions for buildings
Inventor: CHRISTISON JOHN MCCULLOCH
IPC: E04B2/78
Filed: 1963-06-05
Abstract: 1,001,685. Partitions. EXPANDED METAL CO. Ltd. May 14, 1964 [June 5, 1963], No. 22405/63. Addition to 936,420. Heading E1V. The T-shaped members 8 of the partition forming the subject of the parent Specification are modified by the provision of a bulbous nose of substantially diamond-shaped section along the free longitudinal edge of the web, to assist in retaining the T-shaped member in engagement with the panels 9.
Patent GB-1004837-A (GB)
Title: Improvements in and relating to hydraulic presses
IPC: B29C33/44
Filed: 1962-06-12
Abstract: 1,004,837. Injection moulding machines. MASCHINENFABRIK FAHR A.G. June 12, 1962 [June 13, 1961], No. 22505/62. Heading B5A. A mould-supporting platen 3 is mounted on a plurality of parallel-acting hydraulic rams 2, and an ejector member 6 arranged centrally of the rams has one end projecting through the platen 3 so as to actuate ejector means in the mould (not shown) and at its opposite end carries stops 7, 8 co-operating with part of a framework to determine the extent of its movement. An upper ejector member 9 having stops 10 is operated similarly.