baber/WOPTO huggingface dataset:
Patent GB-835937-A (GB)
Title: Multi-way valve for hydraulic control systems
IPC: F15B13/04
Filed: 1957-04-29
Abstract: 835,937. Valves. BARTZ, G., [trading as BARTZ KOMM.-GES., H.]. April 29, 1957 May 2, 1956], No. 13581/57. Class 135. A multi-way valve for reversing the direction of flow of fluid to an hydraulic control system comprises a plug formed with four rectilinear passages a, b, c and d inclined at angles to the plug axis, the apertures a1 cl and dl at one of the ends of the passages lying in a transverse plane YY and the apertures a2, b2, C2 and d2 at the other ends of the passages being disposed two above and two below the transverse plane, the plug co-operating with a casing having four apertures A, B, C, and D, apertures A and B lying in the same plane and apertures C and D lying, respectively, below and above the plane. The apertures in the plug are so arranged relative to the apertures in the casing that when the plug is rotated so that the aperture al co-operates with the casing aperture A, this aperture is linked with aperture C and aperture B is linked with D. On rotating the plug further until the aperture dl co-operates with aperture A, this aperture is then linked with aperture D and aperture B is linked with C. If apertures C and D are assumed to be the supply ports to the hydraulic system a reversal of direction of fluid flow is thus achieved. Further rotation of the plug to a position where the aperture al comes between the two casing apertures D and C blanks off all the plug apertures, thereby closing the valve. The plug may be provided with a recess so that in the closed position apertures C and D are interconnected.
Patent GB-696812-A (GB)
Title: Improvements in neutron source
IPC: C01F13/00
Filed: 1949-05-23
Abstract: Beryllium particles coated with radium for use as a neutron source are obtained by heating beryllium particles that have been coated with radium carbonate.  Preferably the particles are heated to 1400/1500 DEG F in a container of platinum or "Monel" Metal (registered Trade Mark) and in an atmosphere of argon, helium, neon or other inert gas.  Then RaCO3+5Be --> 2BeO+Be2C+Ra.  Alternatively, the particles may be heated to 1850 DEG F, then RaCO3 --> RaO+CO2; RaO+Be--> BeO+Ra.  The radium carbonate coating is obtained by slowly adding ammonium carbonate solution to a mixture of radium chloride (or bromide), ethyl alcohol, and beryllium powder, while stirring. The mixture is stirred intermittently for 30/60 minutes and allowed to stand for 12 hours.  A further quantity of beryllium powder is then placed on the mat of a fine porosity fritted "Pyrex" (registered Trade Mark) crucible, ethyl alcohol is added, swirled, and the alcohol drawn through with suction.  The radio-active mixture is then filtered through the resultant mat and washed with 50 per cent alcohol until the filtrate contains no chloride.  The alcohol is driven off by heating to 230 DEG F.
Patent GB-756727-A (GB)
Title: Improvements in and relating to working electrically conductive materials by electric erosion
Inventor: RUDORFF DAGOBERT WILLIAM ALFRE
IPC: B23H1/02
Filed: 1952-05-30
Abstract: 756,727. Removing metal by spark discharge. SPARCATRON, Ltd. Oct. 8, 1953 [May 30, 1952], No. 13787/52. Class 83 (4). In apparatus for working electrically conductive materials by spark discharges in an electrolyte or liquid dielectric between a workpiece and a cutter electrode unidirectionally electrically conductive means are provided in the circuit connecting an energy-storing device fed by direct or alternating current with the cutter member and workpiece to prevent cyclic or transient polarity reversals. The means may comprise solid contact rectifiers, e.g. copper oxide or selenium, thermionic diode valves or transductors and the current may be unidirectional pulsed current. In one embodiment a condenser C, Fig. 1, and inductance L are in series across a direct current supply and rectifiers 5, 6 are provided in the leads to the electrode 1 and workpiece 2. In a modification a full-wave rectifier bridge is connected to supply the electrode and workpiece and the condenser and inductance may be chosen to produce resonance when supplied with alternating current. Spark discharges may be initiated in a full-wave rectifier circuit by a high-frequency current pilot spark applied to the spark gap from an oscillating Tesla circuit. Chokes are provided to prevent flow into other parts of the circuit. Two electrodes 1, 1 may be employed as indicated in Fig. 5, the condenser C being supplied with A.C. or D.C. so that when operating under oscillatory conditions spark discharges will occur from each electrode in turn. In the circuit shown in Fig. 6 current is supplied through a winding 20 of the exciter coil of a magneto-strictive ultrasonic generator whose vibrated core is attached to the electrode 1 or workpiece 2. In each case the working zone is bathed with electrolyte or dielectric. The Provisional Specification refers to Specification 637,872.
Patent GB-1292743-A (GB)
Title: Ethylene/butene copolymers
IPC: C08F210/16
Filed: 1970-03-23
Abstract: 1292743 Ethylene-butene copolymers PHILLIPS PETROLEUM CO 23 March 1970 [24 March 1969] 13817/70 Heading C3P Copolymers of ethylene with 5 to 9 weight per cent of butene-1, having a density of 0À920 to 0À930 g./c.c., a molecular weight distribution of 6 : 1 to 20 : 1, an environmental stress cracking (F 50 ) resistance greater than 100 and 14 to 21 ethyl branch groups per 1000 carbon atoms, may be prepared by copolymerizing ethylene and butene-1 in an inert diluent, e.g. isobutane, in the presence of a catalyst formed by impregnating microspheroidal silica or silica/ alumina with chromium trioxide and activating for 5 hours at 1400 F. A modifier, e.g. hydrogen, may also be present.
Patent GB-151581-A (GB)
Title: Improvements in tunnel and shaft linings
IPC: E21D5/10
Filed: 1920-05-19
Abstract: 151,581. Hewett, B. H. M., and Johannesson, S. Sept. 25, 1919, [Convention date]. Shafts and tunnels.-Linings for circular and other shafts and tunnels comprise spaced steel ribs C, built of sections preferably welded together, angle irons D welded &c: to the inner edges of the ribs, further angle irons F welded &c. to the ribs at a distance from their outer edges, and a skin H secured to the angle irons F. The skin H may be of concrete, wood, metal etc.; when of metal, it may be in sections welded together and to the ribs. The skin may be per. forated for the passage of concrete. In shielddriven tunnels, the slcin is placed in alinement with the axes of the rams which advance the shield. A filling may be placed within the skin.
Patent GB-184858-A (GB)
Title: Improvements in or relating to ordnance sighting apparatus
IPC: F41G3/00
Filed: 1921-05-17
Abstract: 184,858. Dawson, Sir A. T., and Buckham, Sir G..T. May 17, 1921. Sights.-The indicating-device of the lateral deflection gear C for speed of target is adapted, by applying, for example, a correcting movement to its index mark C<1>, to give also the drift correction in accordance with tangent elevation only. The invention is shown in Fig. 3 applied to antiaircraft ordnance not having an independent line of sight. The sight bracket A is elevated relatively to the gun about trunnions a by the vertical deflection gear D mounted on the gun cradle and actuating a floating arc G. The tangent-elevation gear E, which serves to move the sight bracket relatively to the arc, has a cam E' which through a roller f and link F' applies a correcting movement to the index C<1> of the lateral deflection gear which moves the sight-carrier B about a pivot b on the sight bracket. In cases where the drift correction is given by inclining the pivot a, the vertical deflection gear is provided with a cam to correct for the lateral movement imparted to the sight by this gear and to ensure that the drift correction is in accordance with tangent elevation only. The invention is also shown applied to ordnance having an independent line of sight as described in Specification 184,855.
Patent GB-1142967-A (GB)
Title: Improvements in or relating to block-making machines
IPC: B28B3/02
Filed: 1966-03-29
Abstract: 1,142,967. Moulding concrete blocks. K. YAMASITA, and Z. YAMASITA. 29 March, 1966 [31 March, 1965(3)], No. 13897/66. Heading B5A. Concrete blocks are cast under pressure in a vibrated mould wherein the mould, the vibrator, and a press device are resiliently mounted in the machine frame to prevent the transmission of vibrations thereto, and the mould is rotatable through 180 degrees to an inverted ejection position. Closed bottom concrete moulds 6 are carried by a mould frame 7 which is provided with vibrators (12), (Fig. 2, not shown), on the underside thereof, actuated by an electric motor 11, and which also carries a pressure applying frame 15, to which is attached a plurality of pressure applying beams 17 mounted on vibration absorbing rubber blocks 16. The frame 15 is actuated to apply pressure to a pallet 18 on the upper surface of the moulds by means of a pair of piston-rods 14 extending from fluid pressure cylinders (13) attached to the underside of the mould frame 7. The frame 7 is rotatable through 180 degrees on a pair of stub axles 8 supported in bearings 4 which are resiliently mounted to the machine frame 15 by rubber blocks 5, whereby the moulded blocks are lowered on pallet 18 as the inverted frame 15 is either displaced by the weight of the blocks or by the fluid pressure cylinders 13, if double acting, so that beams 17 locate between parallel upstanding plates 31 provided on a plate 30, mounted on rubber shock absorbers 29, to deposit the pallet on rollers 32 providing an inclined surface from whence the pallet is transferred to a conveyer 33. The moulds 6 are charged from a hopper 24 by a box 22 which is reciprocated by a double acting cylinder 23. The mould frame 7 is rotated by sprockets 19, 19<SP>1</SP>, each respectively attached to one stub axle 8 and to each of which is fixed a respective chain 20, 20<SP>1</SP> connected respectively to single acting cylinders 21, 21<SP>1</SP>, whereby rotation of the mould frame 7 is effected in each direction. The power cylinders 13, 21, 21<SP>1</SP> and 23 can be actuated by an hydraulic system or, with the exception of cylinder 21 which bears the descending weight of the concrete block and is provided with a throttled fluid return path, the cylinders may be actuated pneumatically. In an alternative embodiment (Figs. 7 and 8, not shown), the mould (35) is mounted on the moulding frame (7) by rubber mountings (34) and vibrators (12) on the underside of the mould (35) are driven by a motor (11) mounted on vibration absorbing material (36) to the machine frame; the mould frame (7) being manually or mechanically rotated to the ejection position.
Patent GB-916018-A (GB)
Title: Improvements relating to setting multi-part pit-props
IPC: E21D15/58
Filed: 1959-04-23
Abstract: 916,018. Assembling force fits. GUTEHOFFNUNGSHUTTE STERKRADE A.G. April 23, 1959 [April 23, 1958], No. 13915/59. Drawings to Specification. Class 83 (4). [Also in Group XXIX] A removable hydraulic device for uniformly setting and uniformly tightening and wedging the clamps of telescopic pit-props comprises a portable unit containing three double-acting rams to engage the prop and a power unit. The rams respectively set, tighten and wedge the props and a slide-valve is automatically actuated when a predetermined pressure has been attained to return the rams to their initial state. The power unit comprises an hydraulic pressure generator driven by a pneumatic motor and automatic control gear.
Patent GB-276601-A (GB)
Title: Improvements in aeroplanes
IPC: B64C23/00
Filed: 1927-05-24
Abstract: 276,601. Jette, D. K. May 24, 1927. Aeroplanes; helicopters; machines supported by direct fluid pressure apparatus; planes, construction of; propelling. - A sector-shaped plane 6, mounted immediately above the fuselage 1 of an aeroplane, has a central aperture 7 in which is mounted a propeller 5 below which is a bladewheel 8 to distribute the air current beneath the plane. A traction propeller 2 is mounted on the nose 3 which is freely rotatable and carries spiral blades to distribute the air currents. A number of tractor propellers may be used.
Patent GB-293946-A (GB)
Title: An improved process for the production of sugar from dried beet
IPC: C13B10/00
Filed: 1927-05-24
Abstract: 293,946. Sugar Beet & Crop Driers, Ltd., Melrose, W. K., and Stead, J. C. May 24, 1927. Extracting sugar. - Dried beets in sliced or disintegrated form are subjected to diffusion at a temperature between 50‹-70‹ C. in warm water, the raw syrup while at the same temperature being limed and then clarified by centrifugal or other mechanical action. Prior to a final filtration, the clarified syrup is preferably mixed with melted low-grade sugar and decolorized with activated carbon. A second strike of white sugar is obtained and the low-grade product for mixing is produced by boiling the green syrup remaining.
Patent GB-1060283-A (GB)
Title: Door locking mechanism
IPC: E05B65/20
Filed: 1965-04-02
Abstract: 1,060,283. Door latches; door operating mechanisms. VAPOR CORPORATION. April 2, 1965 [July 29, 1964], No. 14020/65. Headings E2A and E2M. A door locking mechanism comprises and lock nin secured to the door locking means selectively movable to block or allow movement of the lock pin, latch means acting on the lockine means, and means on a control rod connected to the door to control movement of the latch means. The sliding door 10 is locked by one lug 26 on a pawl 20, pivoting on a mounting plate 22 connected to a plate on a door post 12, engaging a pin 24 on the door. The pawl 20 is retained in this position by a latch 28 pivoting on the plate 22 and controlled by a rod 16. One end of the rod is connected to a door operator 17 and the other end passes through an aperture in a bracket 14 secured to the edge of the door 10, and a collar 18 on the end abuts the aperture. A spring 19 within the bracket allows limited movement of the door to open position until pin 24 contacts lug 27 on the pawl. To open the door, the door operator 17 moves the rod 16 so that a cam 36 thereon engages a cam 37 on the latch 28 to pivot the latch clockwise, the latch spring 30 moves over a centre position to free the pawl 20 which pivots under gravity to release the pin 24 from blocking by lug 27 and to allow the door to open. To close the door, the door operator moves the control rod in the opposite direction the cam 36 over the rod contacts the cam 38 on the latch to pivot the latch anticlockwise, the lug 26 engages the pin 24 to pivot the pawl clockwise and allow the latch to return to its original position under the action of the spring 30. Stop pin 35 and stops 39 and 40 limit movement of the latch and pawl. A mercury switch 41 on the latch may control an indicating lamp or the motor circuit for the vehicle when the door is unlocked.
Patent GB-719579-A (GB)
Title: Improvements relating to pressure operated relay valves
Inventor: PINKESS LESLIE HAYDN
IPC: F16K31/385
Filed: 1952-06-04
Abstract: 719,579. Valves. EVERED & CO., Ltd. Aug. 28, 1953 [June 4, 1952], No. 14053/52. Class 135 In a valve for controlling the flow of gas in a line of the kind in which the valve 6 is carried by a diaphragm 7 and a controlled flow of gas passes from the inlet 5a through a restriction 9a and through a control chamber 8a above the diaphragm, a pin 11 which acts as an adjustable stop to prevent the valve from closing completely on to its seat also acts to control a bye-pass passage 5l between the inlet 5a and outlet 5b. The restriction 9a is provided in an adjustable plug 9, and the flow through the chamber 8a and, hence, the pressure therein acting on the diaphragm 7 is regulated by means of a thermostat, clock &c. which controls an outlet 10 from the chamber. The bye-pass passage through the pin 11 consists of a circumferential groove 11a so that, as the pin is screwed in to set its upper end in the required position to act as a stop; the bye-pass passage is simultaneously opened and adjusted.
Patent GB-460404-A (GB)
Title: Improvements in and relating to sound absorbing surfaces and structures
IPC: G10K11/16
Filed: 1936-05-18
Abstract: 460,404. Nonconducting coverings for sound. ROWLANDS, R. E., and BRITISH ACOUSTIC FILMS, Ltd. May 18, 1936, No. 14082. [Class 64 (ii)] The surface of a sound-absorbing structural element is formed with one or more comparatively small steep channels, the opposite flanking walls c of which are of convex, curved profile. The profile of a single ridge a<1> .. a3 may be parabolic, halfwave sinusoidal, or exponential and the profile of a trough may be cuspidal. The channels may be formed as spirals or circles on a plane or dome, and a parallel set of channels may intersect a similar set. Suitable material for the element comprises glass wool covered with textile fabric, felted vegetable fibre or animal hair with binders, sponge-like masses of organic synthetic material or porous calcareous or stone-like substances. Additional sound absorbent material may be provided at the bottom of the channels.
Patent GB-893715-A (GB)
Title: Improvements in or relating to mobile platforms
Inventor: COCKERELL CHRISTOPHER SYDNEY
IPC: B60V1/00
Filed: 1957-05-02
Abstract: 893,715. Vehicles supported by gaseous cushions. HOVERCRAFT DEVELOPMENT Ltd. May 2, 1958 [May 2, 1957], No. 14096/57. Class 4. [Also in Group XXI] A mobile platform 8, Fig.. 1, is supported above the ground or water by a cushion of air or other gas Contained within a curtain of fluid 9, such as of air or water discharged on the underside. The curtain 9 is directed radially inwardly from a peripheral mouth 1, Figs. 2, 4, which may comprise a plurality of separate nozzles and from cross-connecting mouths 3, 4 which divide the undersurface into separate cushion compartments for stabilising purposes. The platform may be propelled by the horizontal reaction of the jet curtain against vanes 10 in the mouth 1 or it may be propelled by separate motors. Applications of the platform for use as a base for a radar station, guided missiles or as an aircraft landing strip at sea are referred to. An application to lifting ships in docks (see Group XXI) is also described.
Patent GB-290588-A (GB)
Title: Improvements in or relating to automatic train control systems
IPC: B61L3/12
Filed: 1927-10-06
Abstract: 290,588. Associated Telephone & Telegraph Co., (Assignees of Hudd, A. E.). Oct. 6, 1926, [Convention date]. Divided on 278,730. Drawings to Specification. Magnets; electromagnets.-The apparatus described is identical with that of Specification 278,730. The claims relate to the control, by apparatus on the track, of the device on the train which determines the rate at which speed must be reduced in the section ahead. Specifications 290,587; 293,431. [Class 105, Railway signals &c.], and 293,432 are referred to.
Patent GB-360443-A (GB)
Title: Improvements in and relating to wings or planes of aeroplanes or the like
IPC: B64C3/56
Filed: 1930-05-08
Abstract: 360,443. Aircraft with adjustable wings. CHILLINGWORTH, R., Premier Hotel, Russell Square, London. May 8, 1930, No. 14226. [Class 4.] In a flying machine having wings mounted to turn about an axis at an angle to their major axis for varying the incidence of the wings the method of mounting is such that they can be turned from a position extending transversely of the body to a position extending lengthwise thereof. A flying boat, Fig. 1, has wings 1 pivoted at 2 to the body 5. The wings are supported in their operative position by tubular struts 8 pivoted at one end 9 to the wings, and at the other end by means of pivot bolts 10, Fig. 2, to a collar 11 slidable on a vertical column 12 for varying the incidence of the wings. This adjustment may be effected by a screwed hand-wheel connected to the collar and engaging a screw thread on the column, or by rack and pinion or like means. To fold the wings the pivot bolts 10 are removed and the wings rotated through 180 to the position shown in dotted lines where they may rest on a rear spar 7 of their pivotal support.
Patent GB-544632-A (GB)
Title: Improvements in and relating to lathes
IPC: B23G1/46
Filed: 1941-06-05
Abstract: 544,632. Attachments for screwing and tapping. HERBERT, M. S., and WELLER, R. June 5, 1941, No. 14306. Divided out of 545,776. [Class 83 (iii)] A screwing or tapping attachment for mounting in a turret 4 or tailstock of a lathe comprises a casing 1 enclosing gearing operated by a shaft 8 driven independently of the normal lathe drive, which is disengaged so that the work remains stationary, the gearing including reversing mechanism for running the tool into and out of the work. The gearing includes loose bevel gears 5, 6, driven in opposite directions from a wheel 7 and having clutch teeth coacting with teeth secured to a slidable rod 10 carrying the tool 14. When the tool is advanced to the work the forward driving member 13 is engaged and when the turret is withdrawn the reverse member 12 is engaged to withdraw the tool. The shaft 8 may be driven from a motor through a flexible shaft.
Patent GB-892895-A (GB)
Title: An improved method of fabricating stress equalising ring elements
IPC: B21C47/00
Filed: 1959-04-27
Abstract: 892,895. Making stress equalizing ring elements for expansion joints; angular bending; drawing; welding by fusion. ZALLEA, J. P., and ZALLEA, S., [trading as ZALLEA BROS.]. April 27, 1959 [May 20, 1958], No. 14332/59. Classes 83 (2) and 83 (4). A method of making a stress equalizing ring element for use with a corrugated bellows element of an expansion joint includes the steps of forming a one-piece elongated member of generally uniform cross-section into a hollow annulus with overlapping ends, the hollow annulus so formed having an intermediate wall area extending circumferentially about the inner periphery of the annulus and a pair of facing side wall areas extending convergently radially outwardly from the intermediate wall area to a narrow edge forming the periphery of the annulus, trimming off the overlapping ends so as to form a radially split hollow toroid with free ends in closely spaced facing relation, and securing a completely circumferentially extending close fitting circular band to the outer periphery of the toroid to form a unitary equalizing ring element. U-sectioned stock 39 is clamped at one end, which end has been closed to tear-drop section shown in Fig. 9, is clamped by clamp 40 to a former 33, rotation of which serves to draw the stock under a guide wheel 35 and through a die 36, Figs. 7, 9, which serves to close the U section to tear-drop section. After the former 33 has rotated about 270 degrees to bend the stock therearound a second clamp 47 is applied thereto, and the clamp 40 removed and the rotation continued until the ends of the stock overlap. If the stock is of tear-drop section initially the guide wheel 35 is replaced by a guide wheel 35<SP>1</SP>, Fig. 6. The thus formed annulus is then clamped around a ring 53, Fig. 12, and the overlapped ends severed by a band saw 51. The trimmed annulus is then clamped around a ring portion 87 of a welding jig, Figs. 16, 18, firstly by cams 72 and then by clamps 88. A band 85 is then placed around the annulus 39 and clamped thereto by the cams 72 and by plates 81 tightened by nuts 83, the abutting ends of the band 85 being diametrically opposite the abutting ends of the annulus 39. The band 85 and annulus 39 are then tack welded between the clamps 88, released from the jig and tack welded on the opposite side and then finish welded. The butt joint in the annulus 39 may be reinforced by a welded gusset plate at the side when the assembly is to be used as an end bell in an expansion joint. When used as an equalizing ring the assembly is stress relieved and cut into semicircular halves which are then applied to a corrugated bellows element 92, Fig. 23, of an expansion joint and the halves welded together by butt straps 90 and fillet welds 91. Alternatively, bolting lugs 89, Fig. 22, are welded to the annulus 39 and the assembly then cut into halves along the line 94. Specifications 846,769 and 892,895 are referred to.