baber/WOPTO huggingface dataset:
Patent GB-1177682-A (GB)
Title: Data Communication Apparatus.
IPC: H04N1/00
Filed: 1967-03-13
Abstract: 1,177,682. Digital transmission systems. RANK XEROX Ltd. 13 March, 1967 [16 March, 1966], No. 11580/67. Heading H4P. In a system comprising a plurality of transmitting and receiving stations which are connected by channels having different bit-rate capabilities speed-changers are provided to match the bit-rate of the data received over one channel from the transmitter to the channel over which the data is passed to the receiver. The speed changer may be a tape recorder operating at differing read-in and read-out speeds, and includes a simulator which generates control signals which are returned to the transmitter so that the speed-changer appears as receiving station to the transmitting station. In one embodiment, Fig. 5 (not shown), the speed changer comprises an input/output shift register, a buffer, and a tape recorder. Input data at one rate passes via the input register to a first section of the buffer, which may be a shift register or core matrix. When the first section is full this section is read out to the tape recorder and subsequent input data passes to the second section of the buffer. When this section is full its content is passed to the recorder and subsequent input data passes to the first section. To forward the data to the channel leading to the receiver the recorder feeds blocks of data successively to the first and second sections of the buffer from which the data is read out to the output register. The rate at which the data passes to the channel is selected in accordance with the address signals of the data.
Patent GB-1458175-A (GB)
Title: Lifting device
IPC: A61G7/10
Filed: 1975-03-20
Abstract: 1458175 Inflatable lifting devices B E ILON 20 March 1975 [1 April 1974] 11623/75 Heading F1D An inflatable device for lifting invalids comprises a cylindrical body 2, Fig. 1, with a longitudinal hole 3 into which a rod 5 or an arm may be inserted so that the device may be moved endways along the ground by turning it inside out. As described a cover 10, 11, Fig. 6 is applied and the inflated device is pushed under a patient 14 by a rod 5 which causes the device to advance as it turns inside out. As this progresses the cover 10 is drawn over the device. A plurality of devices, Fig. 11, may be formed into a stretcher.
Patent GB-527979-A (GB)
Title: Improvements in or relating to the production of sodium aluminate products
IPC: C01F7/04
Filed: 1939-04-17
Abstract: 527,979. Sodium aluminates. ALFLOC, Ltd. (Pennsylvania Salt Manufacturing Co.). April 17, 1939, No. 11635. [Class 1 (iii)] Solid sodium aluminate products are obtained by mixing molten caustic soda of 95 to 100 per cent. strength with solid subdivided hydrated alumina in proportions corresponding to a molecular ratio of Na 2 O to Al 2 O  3  of at least 1:1 at a temperature not exceeding 600C. and stirring the mixture during the reaction. No external heating is required, the reaction taking up to ten minutes to complete according to the starting materials. The alumina may be in the form of bauxite but when a very pure product is required an artificial aluminium hydrate which may be pre-calcined at temperatures up to 600C. may be used ; 100 per cent. caustic soda may be used at a temperature up to 600C. if a granular product is desired from bauxite, while if calcined aluminium hydrate is used under these conditions a substantially anhydrous product is produced. Molten caustic soda straight from the caustic pots may be used. The stirring if prolonged yields a freeflowing granular product which if required anhydrous may be passed through a rotary furnace while hot air is blown through. Carbon dioxide should be removed from the latter if a pure product is desired, while the temperature should be below the melting point of the product. Ratios of 1:1 up to 20:1 of Na 2 O to Al 2 O 3  are mentioned, but it is difficult to obtain a wholly soluble product in which the ratio is less than 1.2:1. Specification 427,459 is referred to.
Patent GB-749518-A (GB)
Title: Improvements in and relating to latch fastenings for doors and the like
IPC: E05C7/06
Filed: 1953-04-28
Abstract: 749,518. Door fastenings. BIGG, T. F. H. July 12, 1954 [April 28, 1953], No. 11648/53. Class 44. A door fastening comprises a rod 10 mounted for rotation about its longitudinal axis, means 13 biasing the rod in one direction of rotation, an arm 11 arranged to impart a partial turn to the rod against the action of the biasing means by the act of closing a door, a portion of reduced section in the rod having a plane surface 12 and a stop 14 adapted to be positioned to clear the plane surface in the inoperative position of the rod as the door is approaching the jamb but to engage the rod when the rod is rotated by the closing of a door. As shown in Fig. 1, the means 13, which is a helical spring, biasses the rod 10 so that it tends to rotate in a clockwise direction as shown, looking at the right hand end of the rod. When used for fastening a pair of doors, the rod is rotatably mounted on the door frame so that a portion 15 of the stop 14 which is secured to the door which is closed first can move across the surface 12 just clear of its until it is positioned in a recess 16. When the other door is closed a striker 17 on it engages the arm 11 which is arranged diametrically of the rod 10 and rotates the rod anti-clockwise. The part of the rod of reduced cross-section is thus rotated in the recess 16 of the stop 14 to fasten the first door. In a modification the rod is rotatably mounted on the free edge of the first closed door near the top or bottom and the stop 14 is mounted on the door frame so as to be engaged as before by the part of reduced cross-section. In this case the arm 11 is extended into the path of the second closed door and is moved by engagement with that door to rotate the rod 10 to fasten the first-closed door. In this construction the stop may be cup-shaped with a slot in the cup wall to admit the reduced part of the rod 10 or comprise a half cylinder past which the reduced part rides to engage its far side when the rod is rotated. When used on a single door the rod is rotatably mounted on the door with the surface 12 at an acute angle to the door surface and the stop 14 is mounted on the door frame so as to contact the surface 12 during closing of the door to rotate the rod 10 against the spring 13 so that the portion 15 can clear the surface 12. When this happens the spring rotates the rod so that the door is fastened by engagement of the reduced part in the recess 16. The arm 11 is actuated to rotate the rod 10 for releasing the door. The rod may alternatively be mounted on the door frame and the stop on the door. Guard surfaces may be provided on the stop 14 and striker 17 to prevent their catching in clothing.
Patent GB-716658-A (GB)
Title: Improvements in or relating to travelling-wave tubes
IPC: H01J25/38
Filed: 1952-05-08
Abstract: 716,658. Travelling-wave tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. May 8, 1952 [May 11, 1951], No. 11654/52. Class 39(1) In a travelling wave tube in which the beam is intensity modulated by the grid 14, Fig. 1, of a triode section before giving up energy to the travelling wave on helix 11, and in which the cathode 4, control grid 5 and accelerating anode 6 of the triode section are supported by metal discs 1, 2, 3 sealed to or through the glass envelope, (a) ..the diameter of the anode aperture > the grid-anode spacing (b) the depth of the anode aperture > half the diameter of the anode aperture (c) the ring 5 on which the grid wires 14 are stretched has its wired side adjacent the cathode, and the aperture in ring 5 is conically bevelled with an apical angle > 120 degrees (d) the gridanode transit time > one cycle of the oscillations on the grid, to reduce noise. (e) the helix is connected to or starts close to the anode 6. The beam current is preferably at least 10% of the saturation current to improve noise suppression, as described in Specification 668,906. The grid wires are spaced by some tens of microns from the cathode. If the helix is connected to the anode, as shown in Fig. 1, the anode-grid space is detuned from the input frequency on the grid and the anode is capacitatively coupled to the grid. In a modification. Fig. 2 (not shown) the helix is led through a hole in disc 3 and terminates in a loop capacitatively coupled to disc 3 by a built-in capacity. Cup-shaped metal parts separated by a mica disc and arranged outside the tube wall complete a grid-anode resonator. The beam is density modulated by the grid and excites oscillations in the grid anode resonator which do not velocity modulate the beam but which are extracted by a loop and fed to helix 11. These waves are further amplified by the density modulated beam passing through the helix, Further desirable dimensional requirements are referred to.
Patent GB-835852-A (GB)
Title: Inching mechanism
Inventor: WEIGHELL HENRY JAMES CYRIL
IPC: B24B41/04
Filed: 1958-04-11
Abstract: 835,852. Machine-tool details. SPERRY GYROSCOPE CO. Ltd. April 11, 1958. No. 11658/58. Class 83 (3). [Also in Group XXIII] A mechanism for inching the carriage of a machine-tool along a rail, shaft, &c. 1, comprises an expansible-spacer C3 which determines the spacing along the rail between two clamps 6, 6<SP>1</SP>, each of which is capable of clamping the carriage to the rail. The clamps are disposed one at each end of a member 3 which is secured to the bed of the machine and formed with the spacer C3 in the form of an annular chamber, and a chamber C1, C2 adjacent each of the clamps, each chamber being connected to a supply of fluid-pressure by pipes P1, P2, P3; seals 4 are provided at the ends of the member 3. In operation, fluid-pressure is supplied to, say, chamber C2, which expands the associated part of the member 3 to release clamp 6<SP>1</SP> from the shaft. Pressure supplied to chamber C3 then axially expands the member to move clamp 61 relative to the shaft until release of pressure in chamber C2 causes the clamp 61 to re-engage the shaft. Pressure is then supplied to chamber C1 and released from chamber C3 to permit the clamp 6 to follow the movement of the clamp 6<SP>1</SP>, final release of pressure in chamber C1 reengaging clamp 6. The cyclic pressure-variations to the chambers may be supplied from a 3-piston pump. In an alternative embodiment, the expansible spacer C3 may be in the form of a magneto-strictive element.
Patent GB-375919-A (GB)
Title: Improvements in or relating to gas burner control valves
IPC: F23D14/48
Filed: 1931-04-20
Abstract: 375,919. Atmospheric gas burners. FLAVEL & CO., Ltd., S. and ESSEX, G., Eagle Foundry, Leamington, Warwickshire. April 20, 1931, No..11702. [Class 75 (i).] In an atmospheric burner for gas fires and heaters, the gas discharged from a duct 1 is regulated by displacement of a threaded air duct 5 relatively to a cap 2 on the gas duct, the gas and air ducts being maintained coaxial by an apertured guide plate 8 positioned inside the cap. The cap 2 has a tapered nozzle portion 3, the smallest diameter of which is slightly larger than the duct 5 so that the gas is discharged in an unbroken stream and cannot be entirely shut off except by a cock 10. A packing gland 4 is provided at the rear end of the duct 5.
Patent GB-418372-A (GB)
Title: Head rests for chairs and the like
IPC: A47C9/10
Filed: 1933-04-21
Abstract: 418,372. Head rests. COOPER, A. G., 1, City Mansions, Exmouth Street, Clerkenwell, London. April 21, 1933, No. 11753. [Class 52 (ii).] A detachable head rest for use with a chair or with a back rest comprises a padded cushion-like article 10, provided with means such as a hook 12 at or near its centre by means of which it may be attached to a chair, and with hinged flaps 15 at the ends which bear against the chair back 13 and cause the head rest to present a curved surface. The rest may be made up on a backing of flexible plywood, and the hinged flaps may be connected to the backing by strips 16 of fabric. The rest may be attached to a bed rest or to a back-rest 18 as shown in Fig. 8, the central attachment being made by means of a bolt 21.
Patent GB-234626-A (GB)
Title: Improvements in or relating to spoke covering discs for vehicle wheels
IPC: B60B7/14
Filed: 1924-05-13
Abstract: 234,626. Dunlop Rubber Co., Ltd., and Matthew, J. S. May 13, 1924. Wheels with non-supporting c a s i n g s enclosing spokes. - Spoke-enclosing discs 6 for use on wheels having straight-side rims 1 with one or both side flanges 4 detachable are formed so as to cover the flange and any slot or slots therein. The discs may be secured by cross stays as described in Specification 183,957.
Patent GB-963673-A (GB)
Title: A freewheel drive or return stop
IPC: F16D41/00
Filed: 1963-03-26
Abstract: 963,673. Ratchet clutches. C. NORMANN. March 26, 1963, No. 11843/63. Heading F2C. A ratchet clutch comprises a driving, or driven, member 2 to which is fixed a sun gear 5 meshing with a planet gear 6 which engages a locking means 12 on a driven, or driving, member 1 to lock the members on relative rotation in one direction. The planet 6 is carried in a carrier 7, 8, having a balance weight 9, which abuts a stop 10 on the member 1 to allow free relative rotation of the members in the other direction. In a modification, the planet may be pivoted in a slot 13 directly in the member 1.
Patent GB-262327-A (GB)
Title: Improvements in amusement devices
IPC: A63G7/00
Filed: 1926-05-06
Abstract: 262,327. Traver, H. G. May 6, 1926. Springs, arrangement of.-A motor vehicle used for amusement purposes and having a front transverse suspension spring is fitted with an auxiliary spring 19 between the front axle and the frame, and a chain 20 serves to limit the rebound.
Patent GB-1217015-A (GB)
Title: Allene polymer and method of manufacture
Inventor: SHIER GEORGE DAVID
IPC: C08F36/00
Filed: 1968-03-12
Abstract: 1,217,015. Polymerizing allene. DOW CHEMICAL CO. 12 March, 1968 [22 March, 1967], No. 11882/68. Heading C3P. Allene polymers in which R and R<SP>1</SP> individually are -H, -OOC.CH 3  or -OH and n is the average number of 2: 3-dimethylenetetramine groups are claimed per se. They may be prepared by contacting allene with an acetic acid solution of a palladous salt, the anion of which is non- or only weakly co-ordinating and 0À25-2À0 moles of a triarylphosphine or triarylarsine per mol. of palladous salt, for a time and at a temperature sufficient to yield the polymer, the triaryl derivative having the formula in which M is P or As and Z is H, C 1-4  alkyl or alkoxy, Br or Cl. Examples describe the formation of polymers having molecular weight of 1000-5000, having strong vinylidene un. saturation but no vinyl groups.
Patent GB-1162435-A (GB)
Title: Improvements in or relating to Soaking Pits.
Inventor: BJERKE HARALD CHRISTIAN
IPC: F27D7/00
Filed: 1967-03-14
Abstract: 1,162,435. Soaking pits. CHRISTIAN A SPIGERVERK, [trading as INGENIOR GUNNAR SCHJELDERUP INDUSTRIOVNER]. 14 March, 1967, No. 11913/67. Heading F4B. An arch 11 is arranged coaxially with and above a burner 8 heating a soaking pit. The arch deflects heat against the hearth, and prevents undue cooling of the walls when the lid 7 of the soaking pit is opened. Each cell of a soaking pit may have a burner and arch in each of two opposite walls.
Patent GB-1468318-A (GB)
Title: Production of plasters from phosphated gypsums
IPC: C04B22/16
Filed: 1975-03-21
Abstract: 1468318 Phosphated gypsum plasters SOC CHIMIQUE DES CHARBONNAGES 21 March 1975 [26 March 1974] 11919/75 Heading C1A A plaster derived from a phosphated gypsum (i.e. as obtained by sulphuric acid attack on phosphate rock) by dehydration to the hemihydrate, said plaster including as impurities metallic salts of phosphoric acid syncrystallized therein, has added thereto at least one fluorine compound having the ability to hydrolyse progressively in an aqueous medium liberating F- ions in an amount such that the ratio F : P 2 O 5  is 0À2-1, where F is the weight of fluorine ions liberated by said fluorosilicate at the time of setting of the plaster and P 2 O 5  is the weight expressed as phosphoric anhydride of the syncrystallized phosphates and at least one neutralizing agent, added in a predetermined quantity, so as to obtain a plaster which sets with a pH of 6-8. The fluorine compound is preferably a fluorosilicate, e.g. of Na, K, Zn or NH 4 <SP>+</SP>. The neutralizing agent may be CaCO 3  or Ca(OH) 2 . The additives may be added to the plaster at any stage during its preparation, either to the plaster itself or to the tempering water.
Patent GB-589863-A (GB)
Title: A method and apparatus for the production of powder compacts
IPC: B30B11/04
Filed: 1944-06-23
Abstract: According to the Provisional Specification a compact of powdered metal is presintered, cut according to requirements and then subjected to a final sintering operation.
Patent GB-1375605-A (GB)
IPC: H03K3/42
Filed: 1972-03-15
Abstract: 1375605 Automatic control of current and temperature MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 15 March 1972 [15 March 1971(2)] 11981/72 Heading G3R [Also in Division H2] A control device comprises a thermistor associated with means for controlling the heat transfer to or from the thermistor whereby the current through the thermistor is prevented from exceeding a predetermined value. A load 13 is fed from a current source 10 by way of a PTC thermistor 11 and the winding of a solenoid 12 which controls the position, relatively to the thermistor, of a plate 14. With a normal current flow in the series circuit 11, 12, 13 the solenoid 12 is insufficiently energized and the plate 14 is held in physical contact with the thermistor 11 by springs 15. In this condition the plate 14 acts as a heat sink to the thermistor so that its temperature, and hence its resistance, remains within normal limits. If the current in the circuit 11, 12, 13 rises beyond the predetermined limit the solenoid 12 becomes energized sufficiently to remove the plate 14 from contact with the thermistor whereupon the temperature, and hence the resistance, thereof increases and the current flow therethrough reduced. In another embodiment a lamp is arranged to heat the thermistor and the control means is a shutter which can be interposed between the lamp and the thermistor. Fig.3 shows a temperature control arrangement wherein a second thermistor 22 senses the temperature of a heatable object 24 thereby to control the current flowing through the heating element 18. Other arrangements show the use of a thyristor, a transistor or a Zener diode or further the solenoid may be provided with two windings through one of which flows the charging and discharging current of a capacitor.
Patent GB-389296-A (GB)
Title: An improved road construction
IPC: E01C5/22
Filed: 1932-04-26
Abstract: 389,296. Reads ; girders ; slabs. WAAL, J. A. DE, 29, Hoofdweg, Amster-. dam. April 26, 1932, No. 12012. Convention date, May 8, 1931. [Classes 20 (iv), 87 (i), and 107.] A road construction comprises girders arranged with their longitudinal edges in abutting relation, and each girder consists of a concrete filling 3, which may be reinforced, in an open box frame e comprising vertical iron plates 1 connected by bolts 2 as shown in Fig. 3. The joint between adjacent girders may be constituted by mortar which may extend over the upper faces of the girders to form the road surface. The frame may extend above the filling so as to provide a space for asphalt 4, Fig. 3, or paving-blocks 6, Fig. 6. Recesses 5 may extend from the upper surface of the filling to beneath a bolt 2 to enable the latter to be gripped when it is desired to remove a girder. Such recesses may be normally filled with mastic. The girders may be arranged longitudinally of the road and supported by transverse girders, or arranged transversely of the road and curved to correspond with the camber of the road. Various arrangements and shapes of the girders are shown in Figs. 12 to 14. The Specification as open to inspection under Sect. 91 describes also an arrangement of the girders which provides triangular spaces between them, as shown in Fig. 13 (Cancelled), and a filling and covering of asphalt is applied. This subject-matter does not appear in the Specification as accepted.
Patent GB-1097231-A (GB)
Title: Improvements relating to exhaust systems of internal combustion engines in vehicles
IPC: F01N3/38
Filed: 1964-03-21
Abstract: 1, 097, 231. Purifying exhaust gases. J.R. CONWAY. Feb. 22, 1965 [March 21, 1964], No.12043/64. Heading F1B. An exhaust gas treatment device comprises a combustion chamber having exhaust gas and air inlets and igniting means and an extractor 15, Fig. 3 arranged to cause a flow of air to assist gas discharge during vehicle motion. Exhaust gases from pipe 6 and air from pipe 7 are mixed together in compartment B where the unburnt gases are ignited by a spark plug (8), Fig. 1 (not shown). The hot gases passing through compartment C are cooled by external air which enters the hollow jacket 3 through forward-facing louvres 13 and thereafter enter exit tubes 12 through the perforations in baffle 10. In a modification the spark plug is replaced by a flame from a pressurized gas container.
Patent GB-1101603-A (GB)
Title: Gas diffusion electrode
IPC: H01M8/24
Filed: 1965-03-22
Abstract: 1,101,603. Fuel cells. COMPAGNIE GENERALE D'ELECTRICITE. 22 March, 1965 [23 April, 1964; 23 Feb., 1965], No. 12107/65. Heading H1B. A fuel cell electrode has a chamber 4 with at least one porous and conductive wall 1 and at least one spacer 5 therein extending from wall to wall. The spacer is integral with and made from the same material as one wall. A gas pipe 3 supplies reagent and may also act as current conductor.
Patent GB-1254869-A (GB)
Title: Improvements in fluid conditioning vessels
Inventor: MARSH ROBERT EDWARD
IPC: B01J47/02
Filed: 1968-10-30
Abstract: 1,254,869. Ion-exchange apparatus. R. E. MARSH. 30 Oct., 1968 [31 Oct., 1967], No. 12129/71. Divided out of 1,254,868. Heading B1J. A vessel for use in treating a fluid by contact with a fluid conditioning medium, for example for softening water by the use of ion-exchange material, comprises a cylindrical central section, a first end cap and a second end cap disposed at opposite ends of the central section in fluid-tight relationship therewith, a conduit extending through the first end cap and axially through the central section into the second end cap for transmitting fluid to and from the vessel, a plurality of vanes disposed within the second end cap in a manner such as to define a plurality of paths for fluid flow between the centre of the second end cap and the periphery of the second end cap, and a screen which is disposed adjacent the vanes for restricting fluid flow between the central section and the second end cap and which is provided with openings located so that the resistance to fluid flow between the central section and the second end cap decreases with the radial distance from the axis of the vessel. The vessel is exemplified by a vessel having the constructional features disclosed with reference to that vessel illustrated in Figures 1 to 7 of Specification 1,254,868.