baber/WOPTO huggingface dataset:
Patent GB-740709-A (GB)
Title: An improved life-saving buoy or raft or boat and like buoyant structures
IPC: B63C9/02
Filed: 1953-02-06
Abstract: 740,709. Rafts; inflatable buoyancy members. SHAW, E. B. Feb. 5, 1954 [Feb. 6, 1953 ; Nov. 27, 1953], Nos. 3487/53 and 33065/53. Class 113. In a buoyant structure for use on water comprising a number of inflatable tubes 8 of flexible material connected with a rigid or substantially rigid buoyant portion, the tubes when uninflated are folded or rolled and stowed close against the, or an outer surface 1 of the rigid buoyant portion, and when inflated are elongated and extend away from the rigid buoyant portion in spaced relationship to one another and with the longitudinal' axes of the tubes extending outwards from the rigid or substantially rigid buoyant portion and in a general plane corresponding to or approaching that of the surface of the water when the structure is afloat so that the free ends of the tubes are capable of some free up and down movement relative to the rigid or substantially rigid buoyant portion. One embodiment of the invention is in the form of an attachment to a boat. In Figs. 4 and 5 the invention is applied to a reversible raft having a main deck 6 at each of its upper and lower surfaces, secondary decks 27 and collapsible hoods 21. The tubes 8 are formed with transverse constrictions 15 such that when inflated from the CO 2  bottle 18 they comprise a number of articulated sections capable of relative up and down movement. The tubes 8 are arranged in pairs connected by ropes 20.
Patent GB-875337-A (GB)
Title: Traveling-wave tube circuit
IPC: H01J25/38
Filed: 1960-02-01
Abstract: 875,337. Travelling-wave tube amplifying circuits. HUGHES AIRCRAFT CO. Feb. 1, 1960 [May 4, 1959], No. 3547/60. Classes 40(5), 40(6) and 40(7) In a travelling-wave tube amplifier in which gain control is effected by the application of a control voltage from a unit 64 to an electrode of the electron-gun 58 to control the electronbeam current down the tube, control of phaseshift between input and output of the tube is effected by applying a phase-shift control voltage composed of the sum of the output from a control unit 68 and a fraction tapped off the output of the gain-control unit 64 to the helix 56 to control the electron-beam velocity within the tube, the fraction tapped off the output of the unit 64 being such as to render the phase-shift within the tube substantially independent of the tube gain. Directional aerial arrays. Fig. 6 shows the application of the invention to a steerable directional aerial array comprising rows of aerials 82, 88, 90, 92 each composed of individual aerials, such as 84, 85, 86. Each aerial is coupled to transmitter 108 through a respective travelling- wave tube, the gains and phase-shifts of which are controlled by a unit 110. The unit 110 may also control the frequency of the transmitter 108. The array may be modified to serve for reception.
Patent GB-1216514-A (GB)
Title: Improvements in or relating to glass compositions
IPC: C03C4/00
Filed: 1968-01-23
Abstract: 1,216,514. Glass compositions. KENNECOTT COPPER CORP. 23 Jan., 1968 [20 Feb., 1967], No. 3606/68. Heading ClM. A clear 'amorphous glass consists essentially of a major molar proportion of TeO 2  and between 20 and 40 molar per cent of ZnO and has a density of 5.35 gr./c.c., a refractive index of 2-0 and a high dielectric constant. When doped with a rare earth metal oxide, e.g. up to 10% by weight Nd 2 O 3 , the glass exhibits fluorescence activity. Transition metals, e.g. Cu<SP>2</SP>+ can also be used as dopants. The glasses can be prepared by melting together a mixture of zinc oxide and tellurium oxide in a platinum crucible over a gas flame and then cooling slowly and annealing at 250- 300 C.
Patent GB-524614-A (GB)
Title: Improvements in or relating to machines for crushing, pulverising or the like
IPC: B02C2/00
Filed: 1939-02-03
Abstract: 524,614. Gyratory crushers. GLENDINNING, S. A., and SMITH, W. H. Feb. 3, 1939, No. 3672. [Class 59] A machine for crushing, pulverizing &c., particularly for crushing stone, comprises a stationary inner conical member 5 and a concave 13 which, by means of an eccentric 21 rotated within the machine frame 1, is given a motion in relation to the member 5 to crush the material passing down between them. The eccentric 21 is driven as from a pulley 25. The inner member is adjustable axially, as for example, upon a screw-threaded stud 4.
Patent GB-767885-A (GB)
Title: Package forming machine and package made thereby
IPC: B65D85/18
Filed: 1955-02-08
Abstract: 767,885. Packaging. BERRY, J. C. Feb. 8, 1955 [July 22,1954; Dec. 6, 1954], No. 3681/55. Class 94(1). A package comprises in one form, Fig. 2, a pair of socks 17, 18 stretched over a cardboard insert 11 having the shape of a foot. The insert may be scored transversely at the heel portion to enable the package to be folded. A label may be adhesively secured to the projecting end of the insert or folded over the end of the insert and adhered to the end of the sock 18, or the package may be enclosed in a transparent envelope having its mouth secured by a folded label. Pairs of anklets 22 may be positioned over the sock 18 as shown in Fig. 7. In a second form, Figs. 13 to 15, the insert 71 has parallel sides, the inner sock 76 being positioned with its heel overlying one face of the insert and the outer sock 77 with its heel adjacent one edge of the insert. The latter may be scored at 74a to facilitate folding of the package. Apparatus for facilitating the formation of the package comprises in one form, Figs. 10 and 11, a pair of spaced front support members 46 secured to an adjustable pillar 45 and a pair of overlapping rear support members 47 pivoted on a pin 48 and movable in an anticlockwise direction against the action of a spring 54 by a pedaloperated linkage 56. The insert is positioned between the members and a sock is stretched over them, after which the pedal is depressed to allow the sock to contract into engagement with the insert. The sock and insert are then withdrawn and repositioned between the members and the procedure repeated with the second sock. In a second form, Figs. 8 and 9 (not shown) the rear support members are movable horizontally under the action of a cam.
Patent GB-607629-A (GB)
Title: An improvement in or relating to means for producing cams
IPC: B23D3/04
Filed: 1946-02-06
Abstract: 607,629. Milling machines; shaping curved surfaces. ASHFIELD, H. E. Feb. 6, 1946, No. 3698. [Class 83 (iii)] [Also in Group XXIII] In means for producing cams by planing, milling or grinding, the workpiece is carried on a spindle connected through change-gears to a second spindle carrying an eccentric, and a part in which the work spindle, gears and eccentric spindle are carried is reciprocated at right-angles to the work spindle axis by the engagement of the eccentric with a suitable fixed part. The work-piece b is carried by a chuck c on a spindle d and is acted on by a planing tool a reciprocated parallel to the axis of the spindle. The spindle is journalled in a head e which is reciprocated on guides f, carried on the machine bed by eccentrics o on a shaft n, a roller p carried by the machine bed being adjustable to engage one of the eccentrics. Gravity, springs, weights or an oppositelyacting eccentric maintain the selected eccentric and the roller in contact. A step-by-step rotary motion between successive strokes of the tool is applied by a pawl and ratchet to a shaft i<SP>1</SP> which, through a worm i and wormwheel h, rotates the work spindle and, through change gears m provided so that a multithrow cam may be produced by the eccentric, rotates the shaft n. A milling-cutter may be substituted for the planing-tool, the rotary feed then being continuous and the milling- cutter rotated about a fixed axis parallel to the work spindle, or a grinding-wheel may be reciprocated across the work with its axis at right-angles to that of the work spindle, the rotary feed being again intermittent. The cutting-edge of the planing-tool, the milling- cutter and the working face of the grinding- wheel may have a radius equal to that of the roller that will engage the finished cam. As an alternative, the work-piece may merely be rotated, the tool being reciprocated to and from the axis of the work-piece in addition to the reciprocating, rotary cutting or grinding movement. Specification 605,156, [Group XXIV], is referred to. According to the Provisional Specification the eccentric may be replaced by a multi-throw cam.
Patent GB-524707-A (GB)
Title: Tyre for vehicles
IPC: B60C19/12
Filed: 1939-02-03
Abstract: 524,707. Wheel tyres. BERCHTOLD, A. Feb. 3, 1939, No. 3706. Convention date, Feb. 7, 1938. [Class 144 (ii)] A cushion type comprises an outer cover 2 to which a liner 3 of spongy rubber is firmly secured, as by adhesive or vulcanization, and a tubular core 1 formed of resilient rubber.
Patent GB-142769-A (GB)
Title: Improvements in or connected with uniflow engines
IPC: F01B17/04
Filed: 1920-02-07
Abstract: 142,769. Bell, W. T., and Perry, F. B. Feb. 7, 1920. Cam gears.-To prevent excessive compression when a uniflow engine is working as a non-condensing engine or when the vacuum is low, auxiliary exhaust valves are opened by a cam-gear automatically brought into action by the defective vacuum. in the arrangement shown, a valve B at each end of the cylinder is opened by a cam E on the shaft G oscillated by an eccentric on a shaft J driven by the engine. The lever M is loose on the camshaft, and its boss is formed as a half clutch. The other half clutch P is keyed on the shaft and, when the vacuum fails, is moved by a spring T into gear with the lever, so that the auxiliary exhaust valves are brought into action. The spring is contained in a chamber in communication with the main exhaust pipe. In one modification, the half clutch P forms a piston for a cylinder containing the spring and in communication with the exhaust pipe. In a further modification, the half dutch P is actuated by the oil pressure in the forced lubricating system under the control of a valve subject to the pressure in the exhaust pipe. The cam-shaft may be rotated by chain or other gear from the shaft J under the control of a clutch in the manner described above.
Patent GB-534450-A (GB)
Title: Improvements in or relating to photographic shutters
IPC: G03B9/08
Filed: 1940-03-01
Abstract: 534,450. Photographic shutters. KODAK, Ltd. March 1, 1940, No. 3847. Convention date, March 22, 1939. [Class 98 (i)] In a photographic shutter comprising an apertured shutter blade 12 moved by a spring 20 to uncover an aperture 15 in the shutter plate 11, a member 43 holds the blade during tensioning and is then moved to release it by means carried by manually-operable tensioning means 16, the member 43 also moving into the path of the blade to prevent rebound thereof after completion of the exposure. In the form shown, inward movement of the operating knob 26 causes a spring blade 27 to engage alternately shoulders 32, 33 formed on a plate secured to the frame-like member 16, which is thereby rocked in alternate directions about its pivot 18, so tensioning the blade-actuating spring 20 to move the blade in alternate directions to make successive exposures. From the position of rest shown, depression of the knob 26 causes the spring blade 27 to engage the shoulder 32, so rotating the member 16 clockwise. In the early part of the movement, a cam surface 47 on the member 16 raises the spring 43, but allows it to return and again to engage a shoulder 40 on the blade 12 -before the blade is turned by the spring. When the frame 16 has turned to tension the spring fully a second cam 47 on it raises the spring 43 to release the blade 12, which then moves clockwise to make the exposure. The spring then engages behind a second shoulder 41 on the blade, preventing the blade rebounding. For giving time exposures a bell-crank lever 51 is loosely mounted on the shutter blade pivot, and is engaged at 54, 55 by a lug 21 on the shutter blade being thereby turned until the end 60 of one arm engages a time stop button 59, which arrests the movement with the shutter blade in the open position. For instantaneous exposures, the button 59 is turned so that a cut-away portion 62 allows the end 60 of the lever to pass.
Patent GB-1179431-A (GB)
Title: Improvements in or relating to Feeding Sheet Material
IPC: B65H3/22
Filed: 1967-01-26
Abstract: 1,179,431. Feeding sheets. U.S.M. CORP. 26 Jan., 1967 [27 Jan., 1966], No. 3855/67. Heading B8R. Fabric sheets are fed in turn from the top of a stack by a pick-off means comprising a plurality of closely grouped coplanar points and mounted on an oscillatable member, the pick-up means first moving radially outwardly to sheet-engaging position, then in an arcuate path to draw the top sheet near its leading edge to a discharge position, then radially inwardly to discharge or after discharging the sheet on to a conveyer, and then backwards along an arcuate path to its initial position. The conveyer comprises driven belts 28, Figs. 1 and 8, running on pulleys 30 loose on a shaft 32 to which are secured keys 44 slidable in slots 40 in discs 34 each carrying a card cloth block 36 carrying wires 38 biased in pick-off direction. The shaft 32 is oscillated to produce the arcuate movement, the radial movement being produced by gravity, whereby the end of a sheet F is inverted over the bdts and lowered on to them. Air from vents 52 in a conduit 50 presses the sheet against the conveyer. In another form, Fig. 9, the shaft is oscillated sufficiently to deliver the sheet to a nip between conveyer belts 56, 60, it being carried away uninverted on the latter. Separation is assisted by a pneumatic fluttering means 54. In another form, Fig. 11, also producing sheet inversion, the radial movement is produced pneumatically, the card block being mounted on a holder 82 on the end of a piston-rod 76. A deflector 84 co-operates with a stationary deflector 86 to prevent the sheet being caught up by the belts as it is being separated. In another form, Figs. 17 and 19, a motor rotates a shaft 126 carrying a cam 128 having a projection 136 which rotates an arm 130 to oscillate a shaft 98 carrying arms 100 on which are mounted the pick-up means 102, whereby the sheet is moved uninverted on to belts 110, and a hold-down roller 142 drops on to the sheet. Leaf springs 152 co-operate with rollers on the bar 102, which rollers ride under the springs on the pick-off movement and over them on the return movement. The cam 128 controls a latch 106 to allow the bar 102 to descend to pick-up position, and at the same time opens a butterfly valve 164 of a pneumatic fluttering device.
Patent GB-860238-A (GB)
Title: Improvements in or relating to securing and/or sealing means
Inventor: WHATMOUGH JOHN EDWARD
IPC: F16B1/00
Filed: 1957-02-05
Abstract: 860,238. Tents. MINISTER OF AVIATION Feb. 4. 1958 (Feb. 5, 1957], No. 4006/57. Class 20(1) [Also in Groups XXV, XXXII and XXXIII] The edge of, for example, the walls 2 of a tent are secured and sealed by means of an inflatable member 8 which is integral with the edge and is passed through and inflated to clamp the edge against a slot in an anchoring means, the latter comprising a beam 3 with an upwardly-extending web 4, terminating in a bulbous head 5, and brackets 7 supporting a rail 6, the rail 6 being spaced horizontally from and disposed parallel to the head 5 to form the slot. The extent to which the walls 2 are passed through the slot is determined by a rib or ribs 9 secured to the walls and formed of elastic strips or cord or by an inflated tube, and the member 8 when inflated draws the rib or ribs 9 into close contact with the head 5 and the rail 6 to augment the sealing. In a modification, the rib or ribs 9 are secured to the inflatable member 8 which is passed only partially through the slot before being inflated. In other modifications the inflatable member 8 is separate from the edge of the walls 2 and is housed in a channel member forming part of a modified anchoring means, and when the member 8 is inflated it clamps the edge of the walls 2 against a beam which forms another part of the modified anchoring means. A variety of crosssections are described for the beam. In the Figure the walls 2 have incorporated therein pneumatic tubular members 1 retaining the tent in its pitched condition. Alternatively, the invention may be used for securing and sealing the edge of a protective sheet for deck cargo on ships. Additional securing members such as straps or ropes may be passed over the sheet, these members having inflatable members for securing them as above described.
Patent GB-1477073-A (GB)
Title: Reactive phenazine dyestuffs
IPC: C09B62/04
Filed: 1975-01-30
Abstract: 1477073 Reactive phenazine dyestuffs IMPERIAL CHEMICAL INDUSTRIES Ltd 9 Dec 1975 [30 Jan 1975] 4098/75 Heading C4P Novel reactive phenazine dyestuffs have the formula  wherein D is the residue of a coloured compound of the N-phenyl phenazine series, n is 1 or 2, R is an optionally substituted amino group, an optionally etherified hydroxyl group, an optionally etherified thiol group or an optionally substituted hydrocarbon radical and R<SP>7</SP> is H or an optionally substituted alkyl. The N atom linking D and the triazine ring is preferably attached to a carbon atom in D, though it may be joined via other groups. The dyestuffs are prepared as appropriate (a) by reacting cyanuric fluoride, amino N- phenyl phenazine of formula D(NR<SP>7</SP>H) n  and RH or (b) by reacting amino N-phenylphenazine of formula D(NR<SP>7</SP>H) n  with a cyanuric fluoride in which two of the F's are replaced by R. The dyestuffs give reddish-blue or blue shades with textiles containing hydroxyl or amino groups, e.g. wool, silk, synthetic or natural polyamide and natural or regenerated cellulose, e.g. cotton or viscose rayon.
Patent GB-1419541-A (GB)
Title: Device for tightening a vehicle safety belt
Inventor: LINDBLAD O L
IPC: B60R21/015
Filed: 1973-01-26
Abstract: 1419541 Vehicle safety belts O L LINDBLAD 26 Jan 1973 [28 Jan 1972] 4177/73 Heading A3V A device for tightening a vehicle safety belt in an emergency comprises a vehicle-acceleration sensor arranged to activate an explosive or other charge to produce a gaseous pressure pulse which effects a sideways movement of part of the belt or a fitting connected thereto and thereby shortens the effective length of the belt. In Fig. 1 an inertia body 21 breaks a bar 19 to release a pin 16 which detonates a charge 12 and displaces a piston 3 in a cylinder 2 to produce a loop in the belt 5. A passage 24 allows a damped return of the belt under the inertia of the wearer. In Fig. 4 charges 34 cause expansion of containers 32 and deflect the belt in loops between pins 31. In Fig. 6 charges are placed in compartments 37 in a fitting formed as a slotted tube. In similar embodiments the compartments are formed between parallel metal strips or between plies of the belt itself. The charges are suitably fired electrically and may be detonated sequentially; the number of charges fired may be determined by the weight of the wearer.
Patent GB-130558-A (GB)
Title: Improved Apparatus for Facing The Handholes in the Headers of Water Tube Boilers.
Inventor: SMALES THOMAS
IPC: B23C3/00
Filed: 1919-02-20
Abstract: 130,558. Smales, T. Feb. 20, 1919. Portable turning-apparatus; drilling.-Apparatus for facing the handholes of water tube boilers comprises a drill body a carrying the slid.e h of a cutting tool j, which is moved at each rotation of the drill-body by the action of the arm m on the star-wheel g. The drill post k is fixed in one of the hand-holes, as shown, and carries an arm l forming a bearing for one of the ends of the drill body. The centre d bears in a cone r inserted in the tube. The drill body is rotated by the handle band the usual ratchet and mechanism. A number of holes can be operated on from one position of the drill post.
Patent GB-1534334-A (GB)
Title: Manipulator for rolling mill
IPC: B25J9/10
Filed: 1976-02-04
Abstract: 1534334 Rolling mill manipulator STIFTELSEN FOR METALLURGISK FORSKNING 4 Feb 1976 [13 Feb 1975] 04304/76 Heading B3M An ingot manipulator for a hot rolling mill comprises a head 1 which incorporates an ingot pusher 19, and a pair of pivoted arms (not shown) for grasping an ingot. The pusher is pivotable about a horizontal axis 23 by rams between operative and rest positions, and the arms are rotatable about a longitudinal axis by a motor-driven head 17 (Fig. 4, not shown). The manipulator is carried on a transverse beam 6 (Fig. 2, in plan) which is supported at its ends by trolleys 2 running on rails 5. This allows longitudinal movement of the manipulator by cylinders 7. A further cylinder 15 provides lateral movement. The pivoted arms are moved towards or away from each other by a cam plate 26 movable by a cylinder 20. The head is pivotable about rearwardly disposed pivots 38 by cylinders 32 to permit alignment of the head with a roll pass.
Patent GB-643149-A (GB)
Title: Improvements relating to the manufacture of electron tubes
IPC: H01J5/24
Filed: 1947-02-14
Abstract: 643,149. Discharge apparatus. SYLVANIA ELECTRIC PRODUCTS, Inc. Feb. 14, 1947, No. 4343. Convention date, Nov. 27, 1943. [Class 39 (i)] A header 13 carrying an electrode assembly 17 is sealed to the bulb of an electron tube 8 by supporting the bulb, mouth uppermost, at one station of an intermittently-rotated turntable, placing the header on the open mouth and heating the adjacent peripheries of the header and mouth. Neutral gas is admitted by pipe 9 to the interior of the bulb which, together with the weight of the header, causes the mouth of the bulb to take the somewhat bulged form shown in Fig. 2. The assembly is now indexed to the next station where rollers 19, 20 are permitted to descend into contact with the bulb and complete the fusion and shaping as shown in Fig. 3.
Patent GB-1280604-A (GB)
Title: Process for the preparation of calcium sulphate alpha-hemi-hydrate
IPC: C01F11/46
Filed: 1970-01-29
Abstract: 1280604 Calcium sulphate alpha-hemihydrate VERENIGDE BEDRIJVEN BREDERO NV 29 Jan 1970 [29 Jan 1969] 4378/70 Heading C1A The alpha-hemi-hydrate of calcium sulphate is prepared by heating a mixture of quicklime and an impure form of gypsum at superatmospheric pressure to at least 105‹ C. for at least a quater of an hour, the concentration of quicklime in the mixture being sufficient to ensure that the pH of a castable aqueous suspension of the product is between 7 and 12 and preferably from 9 to 11. The mixture is preferably heated in superheated steam in an autoclave at 120‹ to 150‹ C. The impure form of gypsum may be a gypsum-containing waste product produced in the conversion of apatite to phosphoric acid.