baber/WOPTO huggingface dataset:
Patent GB-493185-A (GB)
Title: Improvements in or relating to apparatus for forming a ringlet curl
IPC: A45D8/20
Filed: 1938-01-03
Abstract: 493,185. Hair - curling appliances. SOLOMON, N. L. Jan. 3, 1938, No. 139. Convention date, Aug. 14, 1937. [Class 131] A ringlet hair curler comprises a spring clasp 10 having apertures 18 through which a forked hair-winder 20 is inserted so as to straddle a portion of hair, the winder being then rotated so as to form the flat curl under pressure from the jaws of the clasp. The jaws may be curved, Fig. 8, and ribs 23 may radiate from the edge of the apertures. Fig. 9 shows another form of spring clip 10 for use with a similar winder. Specification 453,104 is referred to.
Patent GB-451353-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J61/82
Filed: 1935-01-02
Abstract: 451,353. Discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Jan. 2, 1935, No. 152. Convention date, Jan. 3, 1934. [Class 39 (i)] An enclosed arc lamp contains refractory metal electrodes coated or impregnated with thermionically active material, a heater for raising at least one electrode to operating temperature and a resistance heater as described in Specification 425,597 in the lead to one electrode in series with the arc and having a refractory insulating covering in heat-conductive relation to vaporizable metal. Each main electrode may comprise a refractory ball 16, Fig. 3, projecting towards the other electrode as shown in Fig. 2 and receiving the arc in normal operation, and a tube 13 or disc or cup coated with barium oxide to produce a glow discharge at starting and heated by a winding 21 about the tube 13 or about the central rod 15 supporting the ball 16. The windings 21 of the two main electrodes are connected in series across the arc by a conductor 36 connected to electrode points 431 facilitating starting ; after the arc starts, little current flows through the windings 21. The series resistance 32 in the lead to the lower main electrode is enclosed in a tube 30 of beryllium oxide, thoria, alumina or magnesia. The tube 30 is heated to luminescence and passes through a pool 35 of mercury to raise the vapour pressure in the arc and improve the yield of ultra-violet rays. In modified electrodes, the ball 16 may be omitted and an insulated heater surrounds a refractory metal, cylindrical roll impregnated with thermionic material. In a modified lamp (Figs. 7-10, not shown), an auxiliary starting electrode adjacent either main electrode or between the main electrodes has an internal heater connected through resistances to the two main electrodes. The Specification as open to inspection under Sect. 91 comprises also electrodes of nickelbarium alloy. This subject-matter does not appear in the Specification as accepted.
Patent GB-523370-A (GB)
Title: Improved apparatus for use in the manufacture of barbed wire
IPC: B21F25/00
Filed: 1939-01-03
Abstract: 523,370. Making barbed wire. RENDAN HOLDINGS, Ltd., and BOERKEY, W. Jan. 3, 1939, No. 184. [Classes 83 (ii) and 83 (iv)] Forging-machines.-Apparatus for pressing wire to a form which will restrain movement of barbs thereon, as described in Specification 522,281, [Group I], comprises dies, e, f, relative movement between which is produced by an eccentric c, and a disc h on the same shaft b as the eccentric and connected by a link i with a pawl operating an intermittent feed for the wire. The die e is mounted on a pivoted lever d carrying a roller g engaging the eccentric. The feed is effected by spring pressed rollers one of which is mounted on a shaft m carrying a disc l with recesses n having camshaped surfaces o and terminating in apertures p. A spring-mounted pin on the lever k can enter an aperture p and effect rotation of the disc to feed the wire.
Patent GB-914771-A (GB)
Title: Stabilised polyethers and heterocyclic ethers
IPC: C08K3/06
Filed: 1960-01-04
Abstract: Polyethers free from ethylenic unsaturation are stabilized against oxidative degradation by having dissolved therein an amount of elemental sulphur, suitably 0,5% by weight of the ether.  Specified polyethers include those of the general formula HO(GO)nH where n is greater than 2, RO(GO)nH, where n is greater than 2 and RO(GO)nR1 where n is greater than 1, and G is an alkylene radical and R and R1 represent alkyl, alkaryl or aryl radicals, numerous such ethers being specified.  Polyalkylene arylene glycols are also mentioned. Examples describe the stabilization of polyethylene glycol (M.W. 1000), polypropylene glycol (M.W. 2025) and polytetramethylene glycol (M.W. 1000).ALSO:Liquid, liquefied and solid organic polyethers and heterocyclic ethers, free from ethylenic unsaturation, are rendered resistant to oxidative degradation by having dissolved therein an amount of elemental sulphur, preferably 0.5% by weight of the ether. Specified polyethers include 1,1,1-tri(2-hydroxy ethoxy methyl)ethane, 5,6-bis(2-hydroxyethoxy)-3,8-dioxa-1, 10-decanediol, 2,21-[thio bis(ethyleneoxy)]diethanol, 1,11 - [thio bis(ethyleneoxy butylene)]bis(1,2 - ethanediol), polyalkylene glycols of the general formula HO(GO)nH wherein G is an alkylene group and n is an integer greater than 2 such as polyethylene, polytrimethylene, polydecamethylene and polydimethylethylene glycols, polyalkylene arylene glycols, and polyethers of the general formula RO(GO)nH wherein G and n are as above defined, and R is alkyl, alkaryl or aryl or of the general formula RO(GO)nR1 wherein G is as above, n is 1 or more and R and R1 are alkyl, alkaryl or aryl.  Specified heterocyclic ethers include ethylene and propylene oxides, 1,2-epoxyhexadecane, oxetane, various mono- and di-alkyl oxetanes, 3-phenyl oxetane, 3,3-bis(ethoxymethyl)oxetane, 2-oxaspiro[3,5] nonane, 2-oxaspiro[3,4]octane, dioxane, 1,2-oxacycloheptane and tetrahydrofuran and tetrahydropyran and various of their alkylsubstituted derivatives.  Millable solid ethers may be mixed with the sulphur on a roll mill; low melting ethers are preferably melted in an inert atmosphere and the sulphur added thereto.  An inert solvent may be present.  Examples are given of the stabilization of tetrahydrofuran and various polyalkylene glycols.
Patent GB-350375-A (GB)
Title: Improvements in or relating to means for effecting automatic steering of air and water craft
IPC: G05D1/02
Filed: 1930-07-01
Abstract: 350,375. Automatic steering of air and water craft. DEHN, F. B., 103, Kingsway, London.-(Askania-Werke Akt.- Ges. vorm. Centralwerkstatt Dessau und C. Bamberg-Friedenau ; 87, Kaiserallee, Friedenau, Berlin.) July 1, 1930, No. 235/31. Divided on and addition to 342,323. [Classes 4 and 114.] The automatic steering system of the parent Specification is modified by connecting the membrane or membranes controlled by the compass and the means responsive to turning movements of the craft directly or through resilient connections with the pivoted jet tube controlling the servomotor. The jet tube 23, gyroscope 24, and membrane chamber 28 are mounted in a single housing 53, Fig. 1. The jet tube which is bent at rightangles is pivoted about a point 21 and its inlet nozzle 22 respectively. Its swinging movements are controlled by a resilient connection 31, Fig. 2, from a membrane 25 to an arm 32 on the tube and by resilient connections 45, Fig. 3, from the gyroscope frame. The membrane 25 is influenced by the air pressures in tubes m, n leading from the compass. The outlet orifice of the jet tube is normally directed midway between openings 33, 34 (shown turned through 90 in Fig. 1) which communicate by tubes 35, 36 with the servomotor controlling the rudder 39. Movement of the tube 23 is limited by stops (not shown). The gyroscope 24 which is of the air-driven type is mounted to precess about axles 44 in line with the horizontal part of the jet tube, thus both deflection of the membrane 25 due to displacement of the craft from its compass course and precession of the gyroscope by angular acceleration of the craft cause movement of the jet tube orifice toward one or other of the openings 33, 34 to actuate the servomotor. The movements produced by the compass and by the gyroscope are opposed when the craft is turned by resetting of the compass casing and act in unison to correct the deviation when the craft is caused to yaw by some external force. Precessional movements of the gyro are damped by a pneumatic dashpot device 49. The follow-up gear operates by swinging the housing 53 about a shaft 55 mounted in bearings 54, 54a, coaxially with the jet tube, thus causing relative movement between the openings 33, 34 and the jet tube orifice. The gear comprises a rod 52 connected to the servomotor piston 38 and coupled by a pivoted link 59 with a crank 58 formed on the shaft 55.
Patent GB-618226-A (GB)
Title: Improvements in and relating to electric snap-action switches
IPC: H01H13/36
Filed: 1945-01-03
Abstract: 618,226. Snap-action switches. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 3, 1945, No. 296. Convention date, Jan. 3, 1944. [Class 38 (v)] A device for preventing the rebound of the movable contacts of a single-throw, snapaction switch of the construction described in Specification 564,681, comprises a light cantilever spring 40, attached at one end to a lower fixed.stop or contact 21. The other end 41 of the spring embraces a contact 18 on the movable contact-spring 15. When the latter is moved to the closed position, the contact 18 abuts the end 41 and is prevented from bouncing from an upper fixed contact 20 by the inertia of the spring 40. The spring 40 may be attached to the upper fixed contact 20 and form part of a normally-closed, single-throw switch (Fig. 4, not shown). In a modification, two springs 40 are used to prevent the rebound of both movable contacts.
Patent GB-370898-A (GB)
Title: Improvements in and relating to sound or combined sound and picture recording or reproducing apparatus
IPC: G11B15/50
Filed: 1931-01-05
Abstract: 370,898. Torsional oscillation dampers. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A. -(Assignees of Allgemeine Elektricitats- Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Jan. 5, 1931, No. 418. Convention date, Jan. 3, 1930. [Class 108 (iii).] A driving arrangement for sound recording or reproducing apparatus, in which a driven shaft carries a flywheel which is elastically coupled to a driving shaft, is provided with means for reducing fluctuations in the speed of the driven shaft, comprising a second flywheel rotatable about the driven shaft and frictionally coupled thereto. As shown applied to sound film apparatus, in the figure, a driving shaft 10 is coupled by a spring 1 to a shaft 9 to which a flywheel 2 is keyed. A flywheel 4 freely rotatable on a ball bearing 5 on the shaft 9 is in frictional contact through a felt ring 3 with the flywheel 2. A spring 7 supported by a sleeve 8 secured to the shaft 9 maintains the flywheels 2, 4 in contact and the sleeve 8 may be mounted adjustably so that the pressure between the flywheels can be varied. A modified form of apparatus is applied to drive a gramophone turntable.
Patent GB-323916-A (GB)
Title: Improvements in or connected with power saw gins used for ginning cotton
IPC: D01B1/08
Filed: 1929-01-05
Abstract: 323,916. Platt Bros. & Co., Ltd., and Bradley, T. H. Jan. 5, 1929. Gins.-In a power saw gin for ginning cotton double safeguarding mechanism is provided comprising a fixed or adjustable front guard a, Fig. 1, adjacent to the cross-shaft s which carries or operates means permitting the locking or unlocking of the rollbox cover d' according as the box d is down or up- The guard a is secured by brackets a<1> to the machine frame and masks the shaft s, while the locking and unlocking of the cover d<1> is governed by the position on the shaft s of the. hand-lever s<1> which operates the grid c. A cranked slotted bracket e is mounted on, the shaft s and raising of the lever s<1> to lower the grid c lifts the bracket e and causes its slot e<2> to lock on a pin d<2> on the cover d<1>, Fig. 3. In turning the lever s<1> down to unlock the cover d<1> the grid c is raised to mask the saws b, Fig. 5. A device may also be fitted' to prevent the lever s<1> from being raised until the cover d<1> is shut down on the box d.
Patent GB-204618-A (GB)
Title: Improvements in and relating to the manufacture of cement flags, paving blocks and the like
IPC: E01C5/06
Filed: 1923-01-05
Abstract: 204,618. Hainsselin, A. H. T. Jan. 5, 1923. Paving-blocks. - Cement or concrete paving- blocks while plastic in the mould are faced with a mixture of carborundum and cement or concrete.
Patent GB-656358-A (GB)
Title: Improvements in or relating to a process and apparatus for raising heavy liquids
IPC: B01J19/20
Filed: 1949-01-07
Abstract: 656,358. Screw pumps. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Jan. 7, 1949, No. 459. [Class 110(i)] In a pump for raising mercury or other highdensity liquid, having a vertical rotating screw dipping into the liquid, the kinetic energy acquired by the liquid due to its assuming the gyratory motion of the screw is used to increase the height to which the liquid is raised. In a multi-stage construction, each pumping screw b is followed by a fixed helical passage c which 'uses the kinetic energy of the liquid to raise it further. The inner surface of each passage c is formed by a portion e of the rotor. Preferably, the external diameters of portions e and screws b are equal, and the rotor may be formed in a single piece from a cylinder. Advantageously, the stator comprises rings n and helices o, of a common internal diameter and assembled within a cylindrical casing m. The pump outlet is at i. A single-stage embodiment is described.
Patent GB-767960-A (GB)
Title: Improvements in or relating to concrete vibrators
Inventor: DEARDEN BRIAN BURTON
IPC: E04G21/08
Filed: 1954-01-08
Abstract: 767,960. Agitating appliances. JOHNSON (MACHINERY), Ltd., C. H. Feb. 2, 1955 [Jan. 8, 1954], No. 550/54. Class 86 [Also in Group XXIV] A vibrating unit for an internal concrete vibrator comprises a casing in which inner and outer out-of-balance elements are rotatably mounted coaxially one with the other so as to be angularly adjustable relatively to each other and having means for effecting such adjustment as the elements rotate whereby the amplitude of vibration generated can be varied in dependence upon the load on the vibrator. As shown, the vibrating unit comprises outer casing 10 connected to the outer casing 11 of a flexible driving shaft. Within the casing 10 is journalled the end 13 of an unbalanced rotor 14. Each end of the rotor has a cylindrical portion on which is journalled an outer unbalanced element 17. The element is provided at one end with a trunnion 14 journalled in a bearing 19 in the casing 10. The rotor 14 and element 17 are connected together by a torsion spring 20. Stops are provided on the unbalanced elements to limit relative angular movement between them. When the unit is at rest or running under light load the element 17 overlies the inner element 14 as shown in Fig. 5, providing the maximum amplitude of vibration. As compacting progresses the inner element will take an angular lead over the outer element and the amplitude of vibration will decrease. In an alternative arrangement the elements are arranged so that when at rest one element has a lead over the other and in addition a torsion spring is selected having two rates of loading, so that the amplitude of vibration is initially small, gradually building up to a maximum and gradually decreasing as the elements approach and pass the position where the outer one overlaps the inner one. In a further arrangement two separate torsion springs are used having different rates of loading.
Patent GB-710727-A (GB)
Title: Improvements in or relating to a receiving system
IPC: H04B1/12
Filed: 1952-01-08
Abstract: 710,727. Radiolocation GILFILLAN BROS., Inc. Jan. 8, 1952 [Jan. 11, 1951], No. 567/52. Class 40 (7) In a radio receiver for pulsemodulated signals, for example a radar receiver, wherein undesired signals of relatively long duration may interfere with the reception of the pulse signals, switching means are provided to connect one of a plurality of circuits each having a different time constant between the detector stage and the signal utilization means and further means are provided operating so that the signals applied to the utilization means will give the same indication intensity regardless of the particular interconnecting circuit used. In one embodiment the output from detector 18 is fed through inductance 21 to potential divider 22, 23, 24. In the normal position (shown) of relays 26 and 27 the output is tapped across resistor 24 only and fed through relatively long time constant circuit 48, 48A to the grid of valve 33. The time constant of this circuit may be of the order of .2 secs. To reduce the effect of interfering signals either of two further circuits may be used. The first is fed across resistors 23i and 24 and connected via the upper contacts of relay 26 and the lower contacts of relay 27. When in use it connects short time constant circuit 50, 52, having a time factor of the order of .2 Á secs., between the detector and valve 33. The third circuit connected when relays 26 and 27 are both energized is fed across all three resistors 22, 23 and 24 and includes short time constant circuit 56, 52 having a time factor of the order of 1 sec. The relative values of the resistors are so chosen is obtained at valve 33 regardless of the position of the relays. In another embodiment, Fig. 6 (not shown), the three circuits of different time factors are fed across the same resistor and the one required is selected by a switch which is ganged to a further switch selecting appropriate tapping points on the load resistor of the succeeding cathode follower stage to ensure a constant intensity indication. In a further embodiment an amplifier 101 having a variable amplification factor is inserted between the detector and the selectable circuits 106, 107 and 108 of differing time constants. The output of the selected circuit is fed to the grid 104 of the next stage and also to a peak detector stage 110. Stage 110 is connected to a smoothing delay circuit 111 which gives a continuous potential on line 102 to control the amplification factor of the amplifier 101 so as to maintain constant the indications displayed.
Patent GB-1277391-A (GB)
Title: Storage array drive/sense system
IPC: G11C7/00
Filed: 1970-01-06
Abstract: 1277391 Magnetic storage apparatus; transistor circuits INTERNATIONAL BUSINESS MACHINES CORP 6 Jan 1970 [16 Jan 1969] 577/70 Headings H3B and H3T In a drive/sense system for a data storage system a plurality of common bit/sense lines 24-31 are coupled by a respective transformer 32-35 to a plurality of leads 16-23 provided with blocking diodes D1-D16 interconnecting a drive circuit 10 and sense amplifier 13. Channel selection is obtained through a set of voltage switches SW1-SW6 selected by gate circuits 48-51 which apply appropriate voltages to the centre taps of transformers 32-35. In order to read out information from a pair of bit/sense lines e.g. 24, 25 voltage switch SW1 is set to apply a "down" level voltage to transformer 32 and the remaining voltage switches SW2-SW4 are set to apply a low power "up" signal to transformers 33-35 so that read diodes D1, D8 conduct whilst read diodes D2-D4 and D5- D7 become reverse biased. Any sense signals generated on bit/sense lines 24, 25 coupled to thin film storage elements in response to a word current and appearing on windings 34, 36 of transformer 32 will be passed by read diodes D1, D8 to sense amplifier 13, signals induced in the remaining bit/sense lines being blocked by the reverse biased diodes. To write information into the bit/sense lines 24, 25 voltage switch SW1 is set to apply a high power "up" signal to transformer 32 whilst switches S2-S4 are set to apply "down" level signals to transformers 33- 35 to reverse bias the write diodes D10-D12 and D13-D15. Write current is applied to the word line and bit driver 10 is operated to apply a pulse through write diodes D9 and D16 over transformer 32 to the bit/sense lines 24, 25. Voltage switches and gates, Figs. 2, 3.-Each voltage switch SW1-SW4 and gate circuit 48- 51 is arranged as shown to provide a signal at output terminal 44 having one of three levels dependent on whether the arrangement is being operated in the write or read mode or its associated channel is selected or unselected. If the signal at output terminal 44 is required to be a low power "up" signal a "down" signal is applied to lead 51, and an "up" signal to 52 to render transistors Q 1  Q 2  non conducting and provide a potential above ground on line 70 so that the signal at 44 is the drop across resistor R4. If the signal at output terminal 44 is required to be a high power "up" signal an "up" signal is applied to line 51 and a "down" signal is applied to line 52 so that transistors Q1, Q2 are saturated and a high power signal is developed at 44. If a "down" signal is required at 44 an " up " signal is applied to both lines 51, 52 to ground line 70 and switch off transistors Q1, Q2. The NAND gates are as shown in Fig. 3 which shows in detail NAND gate 57. When two "up" signals are applied to lines 51, 60 transistor Q3 saturates and the potential on line 69 is at ground whereas if either of the lines 51, 60 are provided with a "down" signal current flows through the forward biased diode thereby cutting off transistor Q3.
Patent GB-140749-A (GB)
Title: Improvements in and relating to oil lubricators
IPC: F16N7/04
Filed: 1920-01-08
Abstract: 140,749. Bloom, E. J. March 27, 1919, [Convention date]. Capillary-action and gravityfeed lubricators. - An oil cup for motor-vehicles &c. has a central outlet-pipe e formed with a small opening f and a cup-shaped end which lies close to a conical cover i. Oil splashed on to the cover gravitates towards the apex of the cone and a column of oil is maintained by capillary-action between the cup g and cover i. The cup being hermetically sealed, the oil is delivered to the bearing &c. in small quantities by capillary-action or vibration. The attachment-nipple b may extend at right-angles to the cup.
Patent GB-673030-A (GB)
Title: Improvements relating to record changing gramophones
IPC: G11B17/02
Filed: 1950-01-10
Abstract: 673,030. Automatic gramophones. FORTUNE, H. J., and GARRARD ENGINEERING & MANUFACTURING CO., Ltd.. Nov. 14. 1950. [.Tan. 10, 1950] No. 643/50. Class 40 (ii), In record changing gramophones having a rotary control member 1 which causes the removal of the pick-up from the playing position and its return thereto, and also releases a record from the stack, for example as described in Specifications 606,458 and 632,828, an arm 7 swings about a vertical'axis under the influence of member 1 and engages with the records in the stack and, when these are exhausted, the arm 7 swings farther and brings into operation stop means which prevent the pick-up returning to the playing position. As shown the pick-up is returned by a lever 5 operated by a swing lever 4. The latter carries a pin 19 which is engaged by a hook 20 when link 14 reaches the hook. Link 14 is connected to arm 7 and can only reach hook 20 when the absence of records on the stack permit the resilient driving connection between arm 7 and member 1 to move the former through its full stroke.