baber/WOPTO huggingface dataset:
Patent GB-591041-A (GB)
Title: Radio navigation system and method
IPC: G01S13/78
Filed: 1945-04-27
Abstract: 591,041. Radiolocation. STANDARD TELEPHONES & CABLES, Ltd. April 27, 1945, No. 10725. Convention date, May 1, 1944. [Class 40 (v)] In a system for obtaining on one of a plurality of craft, indications of its distance from a single repeater station which simultaneously serves to repeat signals from other of said craft, on a common radio frequency, means are provided for distinguishing the respective indications at each craft from indications originating from other craft. In the embodiment shown in Fig. 1, the equipment at one aircraft comprises a wobbled frequency generator 1 supplying a pulse generator 2 and transmitter 3, so that radio-frequency pulses of variable repetition rate are transmitted from antenna 4. These pulses are picked up by antenna 5 at the single repeater station common to the system, and are automatically retransmitted from antenna 8, for reception at the aircraft on directional antenna 9. After detection in receiver 10, the pulses are fed to the control grid 12 of an oscilloscope 13. Energy from the pulse generator 2 is fed to a time base generator 14, which supplies time base potentials to the deflection coils 15 of the oscilloscope. Pulses from 2 are also fed through blocking circuit 11 to block receiver 10 during transmission. Deflection coils 15 are arranged to rotate around the oscilloscope simultaneously with the directional antenna 9. Thus each pulse radiated from 4 and received at 9 after retransmission from 8 produces a spot 18 on the oscilloscope, the distance of which from the centre indicates the distance of the craft from the repeater station, and the position of which round the screen indicates the bearing of the repeater station. Although the pulse rate is variable, the return pulses all give a coincident indication on the oscilloscope, since each outgoing pulse triggers the corresponding time base. Other aircraft such as 22 also interrogate the repeater station, but as the pulses are randomly related to the pulses. from the other craft, the direct and repeated pulses received at 9 occur at random in the time base sweep and do not give repeated coincident indications on oscilloscope 13. The true indications are clearly distinguished by their greater brightness. Instead of using pulses with a variable repetition rate, the pulses from each aircraft may have different repetition rates.
Patent GB-175212-A (GB)
Title: Improvements in pupils of artificial eyes
IPC: A61F2/14
Filed: 1921-04-15
Abstract: 175,212. Taylor, G. April 15, 1921. Eyes, artificial.-An artificial eye is constructed so that the pupil appears to dilate in a dull light in a natural manner. As shown, the pupil comprises a glass head 2 suitably coloured and situated in front of a layer of pigment 3 which forms the iris and covering a central glass disc 4. In bright light the eye appears to have a pupil the size of the bead 2, while in dull light the pupil appears to be of the size of the disc 4.
Patent GB-952662-A (GB)
Title: A process for the polymerisation of alkoxypropenes
Filed: 1961-03-27
Abstract: The polymerisation of alkoxypropenes is effected in the presence of a synthetic porous crystalline sodium and/or calcium silico-aluminate at a temperature in the range -80 to +100 DEG C. The molecular weight and/or yield of polymer may be varied by varying the temperature and/or duration of contact. The polymer may be recovered by dissolving in a solvent, e.g. tetrahydrofuran, separating the solution from the silico-aluminate and evaporating the solvent from the solution, e.g. by distillation under reduced pressure. Examples describe the polymerization of (1 to 4, 6 and 7) 2-ethoxypropene and (5) 2-methoxypropene in the presence of (1 to 4) sodium silico aluminates and (5 to 7) calcium silico aluminates.
Patent GB-1004224-A (GB)
Title: Improvements in and relating to ferromanganese alloys
IPC: C22C28/00
Filed: 1963-03-21
Abstract: <PICT:1004224/C6-C7/1> Ferromanganese of composition 80-90% Mn, 0.1-1% Si, 0.04-1.5% C and balance Fe is produced by a cyclic process comprising preparing a melt of iron-containing manganese ore containing 36-52% Mn, lime and sufficient carbonaceous material, e.g. coal or coke, to effect partial reduction of the manganeous values to the divalent state, e.g. in a submerged arc smelting furnace, reacting this melt with sufficient silicon-reducing agent containing 4-14% Si, e.g. in a first ladle, to further reduce the manganese values to the metallic state to produce the ferromanganese and a slag containing 30-38% Mn, reacting this slag, e.g. decanted into a second ladle, with a silicomanganese reducing agent containing 16-36% Si to produce an intermediate Fe-Mn alloy as the silicon-reducing agent and a slag containing 18-24% Mn.  The latter slag may be reacted with manganese ore, quartz and carbon in a furnace melt to produce the silicomanganese reducing agent.  Additional Fe-Mn and/or Si-Mn may be added to the first ladle, and Si-Mn to the second ladle.
Patent GB-634797-A (GB)
Title: Improvements in and relating to knitting machines
IPC: D04B11/00
Filed: 1947-04-28
Abstract: 634,797. Knitting-machines. COTTON, Ltd., W., LYNAM, J. E., and McCARTHY, P. G. April 28, 1947, No. 11246. [Class 74 (ii)] A stop motion is provided in a straight-bar machine to render the machine inoperative if instruments, which co-operate with the needles during a phase of the knitting operations when the normal action of the needles is varied, fail to return to an initial position upon resumption of normal knitting, or if the needles fail to vary their movements for co-operation with the instruments. The invention is described in connection with a machine described in Specification 602,324, wherein auxiliary pressers are operated to engage the needles during the transfer of the initial course from the welt hooks to the needles on completion of the welt and thereby facilitate the withdrawal of the welt hooks. During the transference, the needle movement is interrupted by a press rod 12 that shogs the needle bar pressing truck to modify the pressing movement of the needles, which movement opens a switch 30 in a relay in an electric circuit. A knock over rod 13 is shogged to modify the movement of the knockover bits and to open a switch 31 which is in parallel with the switch 30 of the relay. A mis-pressing rod 20 is then shogged to bring the auxiliary pressers into operation and to close a switch 29 which is in series with the other two switches of the relay. If the pressing movement of the needles has not been modified, the switch 30 will remain closed and, upon operation of the switch 29, the relay will be energized to operate switch 26 and to stop the machine. When the machine resumes normal knitting, the mis-pressing rod 20 returns under the action of a spring 121 and opens switch 29, the knock over rod 13 returns under the action of a spring 66 and closes switch 31 and the press rod 12 returns under the action of a spring 55 and closes the switch 30. Should, however, the rod 20 fail to return, the switch 29 will remain closed and the closing of switches 30 or 31 will stop the machine. In an alternative arrangement, the switches 30 and 31 may be in series and both in parallel with the switch 29 so that failure of one switch to close, de-energizes the relay and stops the machine.
Patent GB-216117-A (GB)
Title: Improvements in or relating to tobacco pipes, cigar and cigarette holders
IPC: A24F1/08
Filed: 1924-05-07
Abstract: 216,117. Maurek, C. May 18, 1923, [Convention date]. Tobacco pipes and cigar and cigarette holders. -A partition 2, of flat or other section and having a semi-circular lug 4 at one end, divides a chamber in the stem 1 into two parts a, b. The part's communicate with each other through one or more apertures 7 in the partition 2. A tube or gutter 6 provided on the partition 2 engages the mouthpiece bore 5 and opens into the chamber b. The tube or gutter 6 may be replaced by a flat tongue or may be dispensed with, the partition plate 2 engaging a. transverse slot in the end of the mouthpiece which is, in this modification, bored eccentrically.
Patent GB-938670-A (GB)
Title: Graving and floating dry docks
IPC: E02C1/00
Filed: 1961-03-28
Abstract: 938,670. Graving and floating dry docks. A. L. BURNETT. March 28, 1961 [April 6, 1960], No. 11300/61. Class 68 (2). A graving dry dock (Fig. 1) or a floating dry dock (Fig. 7 or 8) can be sealed against leaking out (as well as entrance) of water to enable the water level in the dock to be raised above that of the body of water adjoining the dock. When it is desired to dry dock a ship having a draught greater than that for which the dock was designed, in the case of the dry dock shown in Fig. 1, the ship is moved into the basin 11 to one side of the blocks 16 (Fig. 2) if the ship is narrow enough, or with the blocks 16 on one side (Fig. 6). The caisson 13 is then warped into the inboard seat 14 and sunk. Water is pumped into the basin 11 to float the vessel so that it may be positioned over the blocks (Fig. 2), or the blocks be positioned under it (Fig. 3, not shown), after which the water level in the basin is allowed to return to that outside. The caisson 13 is then raised, moved to its outboard seat 15, sunk, and the basin 11 pumped dry. The caisson seating arrangement may be a single channel (Fig. 5) with rams 18 to force a water-tight seal. Fig. 7 shows a floating dock with two open ends closed by caissons Fig. 8 has one open end. The caisson 13 is floated away, the dock flooded and sunk, the ship moved into the dock, and then, as for the graving dock, the caisson is put in position and water pumped into the basin 31. When the ship is positioned over the blocks, water in the basin is lowered to the level of that outside, the caisson moved against its other seating, and the water then pumped from the dock.
Patent GB-835512-A (GB)
Title: Method of and apparatus for cleaning textile rolls
IPC: D01H5/66
Filed: 1958-04-10
Abstract: 835,512. Clearing textile rolls. IDEAL INDUSTRIES Inc. April 10, 1958 [May 1, 1957], No. 11337/58. Class 120(2) Textile rolls are cleared by applying suction in a confined channel longitudinally of each roll thereby generating air currents to flow inwardly, longitudinally of the roll from at least one end thereof and outwardly transversely from each roll. To this end each roll has a stationary suction head comprising side walls substantially equal in length to and in substantially sealing relationship with its working surface, with at least one air inlet near at least one end of each suction head and at least one air outlet remote from each ingress opening. As applied to a drafting frame having four roll sections each comprising four upper and four lower rolls, as shown in Fig. 3, each roll has a suction head 65 formed of two side walls open at the bottom adjacent the roll and converging at the top to a neck 80 communicating with a flexible conduit 82. The necks and conduits of adjacent rolls of each section extend alternately to left and right and communicate with a manifold such as 85 connected to a main suction duct 111 by short flexible parts such as 107. The side walls of each suction head fit with a small clearance on or just over the working surface of the corresponding roll; the end walls rest on enlarged parts e.g. 52, Fig. 4, of bearing members resting in slots 21 in the roll stands so as to leave an air gap between each end wall and a reduced part e.g. 61 of the corresponding roll. The lower heads are held in place by spring catches 127. The hooked member by which each top roller is weighted may be located in a groove 54 in the member 52 or in an extension of the head 65. A slightly different form of head is also described (Fig. 8, not shown).
Patent GB-702641-A (GB)
Title: Building blocks
IPC: E04B2/02
Filed: 1952-05-05
Abstract: 702,641. Building blocks. RIGBY, A. C. May 5, 1952, No. 11340/52. Class 87 (1) A building block having 1, 2 or 3 tapered rectangular apertures 1 is provided on one face with right-angle projections 3 at the comers of the apertures and on the opposite face with corresponding recesses. In a block, Fig. 5, of half width, the projections 11 are of U-form. Specification 229,362, [Class 87 (1)], is referred to.
Patent GB-473208-A (GB)
Title: Improvements relating to gear boxes
IPC: F16D21/04
Filed: 1936-04-21
Abstract: 473,208. Change - speed gearing. DRAKE, W. C. April 21, 1936, No. 11352. [Class 80 (ii)] Change-speed gearing comprises aligned driving and driven shafts 2, 14 connected through a hollow countershaft 5 which is clutched alternatively to loose gears 6, 7, 8, 9 upon it. In the plane of each loose gear is a set of radial ball-ended clutch pins 17 which pins are thrust out into engagement with arcuate recesses 16 in the boss of the selected loose gear when a swell 19 on a selector shaft 18 is brought under the pins.
Patent GB-1392188-A (GB)
Title: Production of rion electrodes for storage batteries
IPC: H01M4/52
Filed: 1972-03-10
Abstract: 1392188 Method of making iron electrode INTERNATIONAL NICKEL Ltd 21 June 1972 [21 June 1971 10 March 1972] 28977/71 and 11360/72 Heading H1B [Also in Division C7] For producing iron electrodes of Ni-Fe storage batteries, negative iron active mass consisting of iron and oxide (Fe 3 O 4 ) or hydroxide is electrodeposited on a conducting support, e.g. a foil of Ni, Fe, Cu or Ni-Fe alloy, from an electrolyte containing ferrous and ammonium ions, e.g. ferrous ammonium sulphate or sulphamate, and a buffering agent, e.g. alkali metal (Na) H 2 PO 4 , tartrate or lactate (added as such or as acid and alkali), at pH 2À5 to 5À5 and cathode C.D. up to 140 mA./cm.<SP>2</SP> 0À1 to 1À0% sulphur as S or FeS may be introduced into the deposit by including in the electrolyte sodium metabisulphite or thiosulphate or thiourea, using sodium sulphite/sulphurous acid buffer solution, or initially charging in a solution containing KOH, LiOH and an alkali metal (poly)sulphide. Cu amounting to from 1 to 20% of the Fe may enter the deposit by including a copper salt, e.g. CuSO 4  in the electrolyte. The active mass may be continuouly removed from the support as it is formed by using a rotary drum cathode and scraper, when required for ramming into tubes or pockets as current conductors. Specification 1,246,048 is referred to.
Patent GB-766673-A (GB)
Title: Improvements in or relating to the production of toy balloons and like articles
Inventor: DAVIS FREDERICK LEWIS
IPC: B29C37/00
Filed: 1954-04-20
Abstract: A method of decorating a toy balloon or like article comprises the steps of inflating the article either wholly or partially, mounting the article between coaxial supports between which it is retained by its own resilience, and delivering dye liquid against its outer surface as a jet from a spray nozzle, the article being rotated about the axis of the supports or the spray nozzle being moved in an arcuate path about the centre of the article during the spraying operation.  A turntable 11 is mounted to rotate on an axis 10.  The partially inflated balloons 18 are resiliently mounted between rotatable cups 14, 15, the cups 14 being mounted on arms 13 secured to a cylindrical wall 12 and the coaxial cups 15 being rotatably supported on the turntable.  A driving wheel 16 coaxial with the cups contacts a driven wheel 17, whereby the balloons are rotated at the spraying stations, the wheels 17 also drive the turntable by contacting an interrupted rail 19 below the turntable, the wheels 15 rotating <PICT:0766673/III/1> <PICT:0766673/III/2> in the gaps in the rail at the spraying stations.  The turntable has spaced lugs 37, which co-operate with recesses in plunger operated heads whereby when the head is raised the lugs engage in the recesses and the turntable is held stationary, the wheels 17 then being positioned in the gaps in the rail 19 out of driving engagement with the turntable, and the balloons then positioned at three spraying stations 27 to 29, and the remaining cups being positioned at loading and unloading stations 30 to 32.  The plungers are operated by compressed air controlled by cams on a driven shaft operating a valve.  Another cam on the shaft operates a valve for the spraying device.  A number of spraying nozzles 46 are mounted on heads and are movable along arcuate rails 44.  Guards 54 are placed between the cups.  The device may be duplicated to spray two balloons in the same position.  The spraying may be intermittent and different colours may be used. The turntable may be driven independently through a clutch operated by air pressure controlled by a valve on the camshaft. The balloons may be supported by cups on an endless chain or chains.  The cups may be horizontally spaced, and rotated by hand.
Patent GB-711966-A (GB)
Title: Improvements in hydraulic lifting apparatus
Inventor: BOULSOVER GEOFFREY
IPC: A61G15/02
Filed: 1951-05-16
Abstract: 711,966. Hydraulic jacks. DENTAL MANUFACTURING CO., Ltd., May 16, 1952 [May 16, 1951], No. 11450/51. Class 78 (3) A hydraulic lifting apparatus comprises control valves for controlling the flow of fluid to the ram, manual means for actuating the valves through connections which enable the speed of actuation of the valves to be slower than the speed of operation of the manual means, and damping means which slow down the rate at which the valves are actuated. As applied to a dental or surgical chair, the valve push rod 28, Fig 5, is coupled by a spring loaded member 24 and an arm 12, Fig. 2, to a rock shaft 1 which is connected by springs 4, 5 with operating pedals 6, 7, and by an arm 13 with a dash pot 16. In operation, initial movement of the lift pedal 6 operates a micro-switch 10, so starting an electric pump 9a, and stresses spring 4. The valve push rod 28 does not lift immediately and fluid from the sump 9c is thus circulated, by the pump into chamber 44 through channels 38 in the valve piston 37, past the normally open valve 36, and thence, through a port 30b in chamber 30a, back to the sump. After a delay, determined by the setting of the dash pot 16, the member 24.is slowly Lifted and spring 52 is allowed slowly to raise the valve 36 against its seating 35 so causing the pressure in chamber 44 to build up and open the non- return valve 49; Whereupon the chair raising raim, which is in communication with chamber 46. is raised. On release of pedal 6 valve 36 re-opens, the pump is de-energized and the ram is retained at its adjusted height. Lowering is effected by operating pedal 7 which, alter a predetermined time delay, slowly lowers the push-rod 28 and tail rod 39 so opening valve 49 and allowing the ram to exhaust to the sump. Should the pedal 7 be held down when the ram approaches its lowest position, a member (not shown) on the ram engages a lever arm 59 which causes lever arm 57 to move a cam (also not shown) into engagement with a roller 56 mounted on the push rod 28 which is thereby raised so opening valve 49. A limit switch 64 co-operates with an abutment 63 on the ram to de-energize the pump motor if the ram is inadvertently raised too far. In a modification the pedal controls may be replaced by a single hand lever and the springs 4. 5 may be either compression springs or air springs.
Patent GB-114710-A (GB)
IPC: B61D49/00
Abstract: 114,710. Yamasaki, M. June 2, 1917. Hand - grips. - Hanger straps for tramcars are provided with a handle or grip in the form of a hollow perforated shell 1 of wood, metal, ebonite, or like material capable of rotation on a supporting-rod 3 and adapted to contain formalin or other disinfectant. The shell consists of upper and lower separable portions connected by a screw-thread, and the upper portion may have an aperture 7 through which the disinfectant may be introduced without separating the parts. The shell is connected to the strap portion 8 by the rod 3 passing through the shell and is divided internally by a central horizontal partition.
Patent GB-974848-A (GB)
Title: Device for showing films
IPC: G03B29/00
Filed: 1962-03-26
Abstract: 974, 848. Portable projection apparatus. M.G.S. MOVIESBOX GENERAL SYSTEM S.r.1. March 26,1962 [March 29, 1961], No. 11498/62. Headings G2E and G2J. In a portable device for showing films comprising two boxes A and B (Fig. 1) hingedly connected so that they can be folded one over the other, box A contains a screen 1 and box B contains the means of control and projection of the film, the screen being disposed at one end, and mirror 3 being disposed at the other end of a bellows member 2 which is collapsible on guides 6 to enable the folding of the boxes. A carrying handle is provided at C. A window 21 allows entrance to box A of image forming rays R from the housing B. In the housing B (Figs. 2 and 3) film 8 fed continuously over a curved slide block 43 and illuminated by a lamp 16 is projected by a lens 19, a rotating optical compensating prism 18 and a stationary prism 20 being provided in the projection beam. A toothed film feeding wheel 11 and the prism 18 are driven synchronously through belt and pulley means 12-14 by an electric motor 10 which also drives a cooling fan 15 for the lamp 16. Tension rollers which may be coupled for movement together, are provided at 33-36 and a magnet head 29 for sound pick up is placed adjacent a wheel 41 rotatably connected to a flywheel 42 (Fig. 4, not shown). Loudspeaker 27, transformer 26 and amplifier means are also provided in the housing B. A single box 30 for the film in the form of an endless loop is releasably mounted on a post 31. The film is guided from the inside of the coil in the direction of arrows I and G by means of rollers 46 and 47 and is returned to the outside of the coil. Entrance and exit slits for the film are provided and other rollers 44, 45 are provided for guiding the coil. Projecting blocks 48 on the lid 30a hold the coil flat.
Patent GB-115984-A (GB)
Title: Improvements in Band Saws.
Inventor: SMITH ARTHUR HENRY
IPC: B23D61/12
Filed: 1917-08-11
Abstract: 115,984. Smith, A. H. Aug. 11, 1917. Saws.-To obtain greater tautness in the cutting-edge than in the rear edge of band saws, these are provided with weakened areas towards the roar edge formed by a series of holes a, Fig. 1, or by softening the metal in longitudinal lines b, Fig. 2, or in short transverse lines e, Fig. 3, or by thinning the metal in such lines, as by milling or grinding.
Patent GB-1453107-A (GB)
Title: Low-flammability o' self-extinguishing plastic or plastic-  elastic compositions
IPC: C08L23/02
Filed: 1974-03-15
Abstract: 1453107 Low-flammability compositions CHEMISCHE WERKE HULS AG 15 March 1974 [17 March 1973] 11583/74 Heading C3P Low-flammability or self-extinguishing plastic or plastic elastic compositions comprise (1) 7 to 50 weight per cent of largely amorphous polyolefin or mixture thereof with up to 2 parts by weight of an elastomer per part of largely amorphous polyolefin, (2) 10 to 40 weight per cent of a polybutene oil or mixture of up to 0À3 part of drying oil per part by weight of polybutene oil, (3) 3 to 30 weight per cent of chlorinated paraffin and (4) 30 to 70 weight per cent of filler, with or without (5) 0À5 to 5 weight per cent of antimony oxide. The polyolefin may be atactic polybutene-1 or a copolymer of butene-1 with ethylene, propylene or hexene-1. The elastomer may be natural rubber, or polyolefln, butadiene/styrene, butadiene/acrylonitrile, butyl, polybutadiene or polyisoprene rubber. The polybutene oil may be prepared by Friedel-Crafts polymerization of C 4 -cuts containing butene-1, butene-2 and optionally isobutylene and butadiene. The drying oil may be a polybutadiene oil or a triglyceride, optionally with cobalt octoate or naphthenate as hardener. The chlorinated paraffin may contain 45 to 58 per cent of chlorine. The filler may be silica or a silicate, sulphate or phosphate, optionally together with ferric oxide or carbon black. The compositions may be used in building, pipe-laying, car manufacture and bonding plastic articles.