baber/WOPTO huggingface dataset:
Patent GB-697605-A (GB)
Title: Improvements in or relating to auxiliary heating means especially suitable for use in connection or combination with domestic fireplaces or stoves
IPC: F24B1/198
Filed: 1950-02-27
Abstract: 697,605. Combined solid fuel and gasfires. MELTON, A., and WARRINGTON LIGHT CASTINGS CO, Ltd. Feb. 7, 1951 .[Feb. 27, 1950] , No. 4924/50. Class 126 A front for an open fireplace has an open fronted recess containing an auxiliary gas or electric fire and having a lower transverse opening for the withdrawal of an ash pan and the ingress of air. Radiants 24, Fig 1, heated by a gas burner 23 are mounted in a recess in the upper part of a downwardly and forwardly extending fire front having side cheeks 12 cast integral with a projecting flange 13 defining an ash pit opening having a door 15, hinged at its upper edge and provided with a spring metal. strip which engages the lower part of flange 13 to hold it in position. The recess is enclosed at the back by a plate 17 secured to the side cheeks 12 and bent forwards at its upper edge to complete the recess, and a forward extension 17c, terminating midway between the bottom of the front opening and the top edge of the door-frame 13, forms a floor to the recess. A cover 19 is provided for the recess, hinged by integral rods 20 engaging lugs secured to the back plate 17. The cover is curved to conform with the inwardly directed curved flanges 12a of the side cheeks. A stop is provided on the rods 20 to engage the underside of the flanges 12a when the cover is open. The side cheeks 12 extend rearwardly of the back plate 17 so that the front edge of the grate bottom 26 extends between the cheeks and is secured to lugs 25 provided in back plate 17. The fire front extends three or four inchesabove the grate bottom, and a refractory lining, not shown, is provided to shield the back plate 17 and side cheeks 12. The fire front may be used with a grate having movable firebars, an actuating rod 31 for the firebars passing through a side cheek of the front. Specification 664,923 is referred to.
Patent GB-180013-A (GB)
Title: Match packets
IPC: A24F27/12
Filed: 1921-02-12
Abstract: 180,013. Graham, A. W. Feb. 12, 1921. Packing cigars, cigarettes, tobacco, and matches.-Relates to match packets for attachment to packets of cigars, cigarettes, tobacco, &c. In the form shown in Fig. 5, the packet is made as a wrapper 9 adapted to encircle the packet p, and is formed with a part 11 hinged at 12 and adapted to cover the matches. A striking-surface 14 is provided. In another form, Fig. 6, two layers 19 of matches are attached to a strip 20, the underside of which is gummed for attachment to a packet, flaps 17 covering the matches. The match packet may be attached to the packet P, Fig. 9, by elastic bands 14<b>, which bands are also adapted to hold the dished cover 10<b> in the closed position, or the part 11<b> may be secured to the packet P by adhesive, and the bands 14<b> serve only to close the cover 10<b>.
Patent GB-1240052-A (GB)
Title: Gyroscopic stabilizer
IPC: G01C19/00
Filed: 1969-01-29
Abstract: 1,240,052. Gyroscopic stabilizers. TETRA TECH Inc. and SANTA FE INTERNATIONAL CORP. Jan.29, 1969 [Feb.19, 1968], No.4998/69. Heading G1C. Apparatus for stabilizing a body against oscillatary angular displacement about an axis 2 e.g. a ship in roll, comprises a gimbal 7 supported for rotation relative to the ship about the athwartships axis 3, a rotor 13 mounted to spin in the gimbal 7 about an axis 17 perpendicular to the axis 3, and hydraulic springs 18, 19 for applying a restoring torque to the gimbal 7 about the axis 3, the restoring torque varying as a non-linear function of the angular displacement of the gimbal about the axis 3 from the position in which the axes 17 and 2 are orthogonal the non-linearity being controlled by varying the restoring characteristics of the springs 18, 19 as a function of the sensed roll frequency of the ship about the axis 2. It has been found that by using a measurement of the roll frequency of the ship to control the restoring characteristics of the springs 18, 19 in a manner the theory of which is given in the Specification, particularly effective stabilization will result. Means are also provided for increasing the rate of change restoring torque as a function of angular displacement of the gimbal 7 from the position in which the axes 17, and 2 are orthoganal and for providing different restoring characteristics for the hydraulic springs for relatively small and large displacements of the gimbal 7 about the axes 3. The springs 17, 18 are preferably oil filled hydraulic springs with an air-space the volume of which is variable by pumping in or out oil so as to vary the spring characteristics. A brake 30 is also provided to reduce the angular velocity of the rotor. The above described arrangements take no account of movements of the ship in pitch about the axis 3 and the effect these movements will be to either under- or over-compensate for the effects of roll depending on the direction of rotation of the rotor 13 and the direction of movement of the ship about the pitch axis 3. This is overcome by providing two identical stabilizers of the type described above but disposed so that their rotors rotate in opposite directions.
Patent GB-469831-A (GB)
Title: Improvements in, and in the manufacture of, cylinder-liners for internal-combustion engines
IPC: F02F1/16
Filed: 1936-02-19
Abstract: 469,831. Cylinders. SANDERS. A. F., and FOWLER & CO. (LEEDS), Ltd., J. Feb. 19, 1936. No. 5036. [Class 7 (ii)] [Also in Group XXVI] Wear of a cylinder bore is reduced by wear - resisting strips 26, which are fixed in grooves in the cylinder liner, preferably by welding. The material, known by the Registered Trade Mark " STELLITE" is suitable, but the strips may be formed by electrodeposition of a hard-wearing metal, e.g. chromium. The strips are preferably arranged helically, to overlap when viewed axially of the cylinder. An annular reinforcing strip 27 is arranged adjacent the outer piston ring when the piston is at the top dead-centre.
Patent GB-765013-A (GB)
Title: Improvements in or relating to articles distributing means
IPC: B65G47/71
Filed: 1955-02-21
Abstract: 765,013. Distributing articles; conveyers. UNILEVER, Ltd. Feb. 21, 1955 [Feb. 19, 1954], No. 5186/55. Class 78 (1). Articles are distributed from a supply line to two or more conveyer lines by a device comprising an assembly surface arranged to receive a predetermined number of articles in a row, means actuated when said predetermined number of articles has been assembled for moving one or more of the assembled articles transversely to stagger two or more of them, and means for displacing the staggered articles transversely of the direction of the staggering movement on to the conveyer lines. In one form, Fig. 1, the articles pass from a supply line 1a (belt conveyer or gravity shoot) to a table 6 where they pile up against a stop 5a. A pressure-sensitive switch associated with stop 5a causes simultaneous actuation of pushers 7a, 8a, 9a when a line of articles has assembled whereby the pushers move from retracted positions at the side of table 6 to the positions shown, staggering the articles. A pusher 10 is then actuated to push the staggered articles into delivery lines 4a, 4b, 4c (which again may be conveyers or gravity shoots). In another form, Fig. 4, supply lines la, 1b feed articles against stops 16a, 16b which operate pressure-sensitive switches 17a, 17b when respective lines are assembled. Pushers 7a, 8a, 7b, 8b are adapted to act on the respective assembled lines to stagger articles from each assembled line on the plate 6 for subsequent delivery by a pusher 22 to delivery lines 4a, 4b of a delivery belt, a control circuit being associated with switches 17a, 17b such that the two sets of pushers 7a, 8a and 7b, 8b cannot be operated together, that set associated with the first contact to be closed operating first. Pushers 8a, 8b push articles from the respective lines against opposite sides of a stop-plate 19, whilst separate stop-plates 20, 21 are associated with the pushers 7a, 7b, the appropriate one being projected while the other is retracted. The pushers are controlled by a common cam-shaft, their followers normally being held away from the cams but being released under control of the switches to cause the pushers to perform their various movements. The control circuit is such that if the supply of articles on one line ceases, the pushers continue to act on the other line. The pressure-sensitive switches may be replaced by photo-electric cells.
Patent GB-320011-A (GB)
Title: Improvements in and relating to powder boxes
IPC: A45D33/06
Filed: 1929-02-16
Abstract: 320,011. Laughton, G. A. Feb. 16. 1929. Contents, delivering.-A powder box a having a hinged lid b is provided with a cup or container e for the powder and a dished perforated plate h having an integral flange g which is a sliding and rotating fit in the smooth internal wall of the cup so that, as the plate is pushed on to the powder in the cup and rotated, powder is fed through the perforations in the plate. The plate is provided with buttons or a hinged bail handle by which it may be manipulated and some or all of the perforations have their edges forced down to form lips or scoops. A deflector may be arranged on the underside of the plate to feed the powder towards the centre thereof.
Patent GB-106477-A (GB)
Title: Improvements in Vehicle Wheels.
Inventor: LINDSAY THOMAS JEFFERSON
IPC: B60B3/18
Filed: 1917-04-13
Abstract: 106,477. Lindsay, T. J. May 18, 1916, [Convention date]. Double and multiple wheels arranged side by side; detaching from, and attaching to, permanent hubs.-A wheel is formed in two parts, each comprising a hub and rim connected bv wire spokes as shown, each hub being adapted for separate removal with its attached parts from the axle 10, Fig. 1, or permanent hub 10', Fig. 6, the rims being clamped together by bolts 34 to secure a tyre or tyres. Referring to Fig. 1, each hub consists of a pair of telescoping sleeves 23, 15, 24, 16, and one or both of the sleeves 23, 24 may be formed with driving teeth 25, 26 respectively to engage corresponding teeth 11, 12 on the axle. A driving-pulley or brake-drum 47 is connected to the hub-flange 28 by bolts 49 and to the rim 32 by struts 50. In the modification shown in Fig. 6, the hubs consist of single sleeves 15<1>, 16<1>, having a driving-connexion with the permanent hubs 10' as before and secured by a cap-nut 42.
Patent GB-571744-A (GB)
Title: Improvements in tube expanding devices
IPC: B21D39/14
Filed: 1944-03-22
Abstract: 571,744. Tube expanders &c. NICHOLS, G. March 22, 1944, No. 5302. [Class 83 (iv)] In a tool for expanding, bulbing or flaring tubes of the kind comprising balls &c. located in openings in a rotatable hollow carrier and operated by a member movable into the carrier and of increasing diameter so as to thrust the balls &c. radially outwards, there is slidable on the carrier a retainer for the balls &c. which is biassed to a retaining position so as to enable the tube to be passed over the carrier when the latter is rotating without fouling the balls &c., the tube displacing the retainer from such position when it has passed over the balls &c. The carrier A containing balls B or rollers is keyed to a driving member G connected to an adapter H rotated by a motor or drilling-machine. On the reduced end of the carrier A is a collar E between which and the member G is mounted a spring J, and a cup C normally pushed over the balls &c. by a spring D and having a spring-retaining ring K. The tube is pushed over the carrier, thereby displacing the cup until it reaches the collar E which determines the point of expansion of the tube. Continued forward movement causes -the balls to be moved out radially by the sliding taper mandrel F, which is free to revolve within the parts A and G. On withdrawing the tube, the cup is pushed-forward by the spring D to prevent escape of the balls &c. and the spring J by pressure on the collar E extends the carrier to the limit of the keyway in readiness for the next tube.
Patent GB-176351-A (GB)
Title: Improvements in air ejector apparatus for use with steam condensers
IPC: F04F5/46
Filed: 1922-02-23
Abstract: 176,351. Metropolitan - Vickers Electrical Co., Ltd., (Assignees of Smith, J. H.). March 3, 1921, [Convention date]. Aspirating-apparatus ejector. -A steam ejector system for removing air &c. from condensers comprises two sets of ejectors in series, a surface cooling device being interposed between the first and second sets, and the fluid from the second set passing to a combined jet and surface cooling device; the cooling-water may be derived either from the condenser or from an external source. Air &c. is withdrawn from the condenser 10 through a pipe 13 by ejectors 19 arranged in parallel, and capable of being employed either together or alternatively. The fluids from the ejectors pass through a port 44 to the upper part of a condenser 25, which is divided into two chambers by an horizontal partition 33, Fig. 2, and are there cooled by water circulating through tubes 31. The condensate passes to the hot-well of the main condenser through a pipe 47. The gases are withdrawn through a pipe 60 by an ejector 66 and delivered to the lower chamber of the condenser 25 through a perforated pipe 55. Circulating- tubes 32 for cooling-water are arranged in the upper portion of the chamber, and water spray is introduced through a perforated pipe 54. The water-outlet is so arranged that the water-level is above the pipe 55, and the incoming gases bubble through the water. In the arrangement shown, the water passing through the tubes 31 and issuing from the jet pipe 55 is supplied from a tank 74 filled from the hot-well of the main condenser, while the water passing through the tubes 32 is supplied from an external source by a pump 91. A modification is described in which water from the hot-well or from an external source can be supplied to both sets of tubes, or the upper set may be supplied from the hot-well and the lower from an external source as required. The water from the upper series of cooling-tubes 31 and from the lower chamber of the condenser is delivered to a feed-water tank 80.
Patent GB-1371341-A (GB)
Title: Seals such as are used for a rolling bearing
IPC: F16J15/32
Filed: 1971-02-25
Abstract: 1371341 Seals; bearings SKEFKO BALL BEARING CO Ltd 18 Feb 1972 [25 Feb 1971] 5449/71 Headings F2B and F2A A seal, e.g. for a rolling bearing comprises a stiffener 11 of relatively hard material bonded to a sealing member 16 of relatively softer material, the member 16 having a sealing lip 17 and a circular projection 12 or series of projections for engaging one bearing race 31. A bead 14 of the stiffener corresponds to a portion of the soft material for axial sealing engagement with a housing surface (not shown). The stiffener may be of glass-reinforced nylon and the sealing member of rubber.
Patent GB-539864-A (GB)
Title: Improvements in or relating to electronic control systems
IPC: G05D23/22
Filed: 1940-03-26
Abstract: 539,864. Automatic control systems ; valve circuits. STEVENS, A. H. (Bristol Co.). March 26, 1940, No. 5471. [Class 40 (v)] [Also in Groups XXXV and XXXVI] A system for controlling a variable condition such as the temperature of a furnace 10, comprises a valve circuit which is normally prevented from oscillating by a degenerative coil 34, the instrument 19 indicating the temperature of the furnace &c. carrying a vane which, when it moves between the coils 28, 34, removes the effect of the coil 34, thereby permitting the valve to oscillate and thus reduce the anode current through the relay 16 which controls the heating circuit of the furnace. The vane is connected by wire 44 to a point of fixed potential on the anode battery. The coils 28, 34 are mounted so that they can be adjusted simultaneously with reference to the vane 35, Fig. 2 (not shown). In a modified system, Fig. 3 (not shown) a Hartley circuit is used and the coils corresponding to coils 28, 34 in Fig. 1 are each connected to earth. In a further modification, Fig. 4, an additional valve 65 generates an oscillation which normally passes through the thermo-couple 80 via leads 76, 77, the coil 81 of the measuring instrument serving as a choke. If the thermo-couple circuit breaks, the coil 81 prevents oscillations being generated by valve 65 and the consequent increase in its anode current increases the voltage drop across resistance 86 thereby lowering the voltage of the screen grid of valve 89. The reduction in the output current of this valve causes relay 91 to disconnect the circuit heating the furnace
Patent GB-110497-A (GB)
Title: Improvements in Valve Mechanism for Explosive Gas Engines.
Inventor: MCINTYRE WILLIAM HUME
IPC: F01L5/04
Filed: 1917-04-19
Abstract: 110,497. McIntyre, W. H. April 19, 1917. Valves; valve-gear.-The two cylindrical admission and exhaust valves 16, 17 with transverse taper parts 25, 26 are arranged as shown and driven by crank-shafts 21 geared by chains to the main crank-shaft 11 in a two-to-one ratio, the cranks being so set that the port of each valve is in register with the corresponding cylinder ports when on its dead centre. The valves are packed with compression rings 31 and provided with water jackets 15.
Patent GB-1008667-A (GB)
Title: Improvements in or relating to machines for spreading solid material on soil surfaces
IPC: A01C7/20
Filed: 1964-02-10
Abstract: 1,008,667. Seed sowers, fertilizer distributers. G. O. H. OLSSON. Feb. 10, 1964, No. 5550/64. Heading AlD. A machine for spreading material on soil comprises a screw 6 mounted in the bottom of a hopper 5 which feeds material through an opening where it is mixed with air in a conduit 2 by blades 3 and fed through a fan 1 to an outlet 27 and enters a material distributer (not shown) which spreads the material over the surface of the ground. The screw 6 and blades 3 are driven by an electric motor 9 supplied with current from an accumulator 10 which is charged by means of a generator 8.
Patent GB-1372792-A (GB)
Title: Threshold switch including field effect transistors
IPC: H03K17/30
Filed: 1972-02-07
Abstract: 1372792 FET switching circuits MESSERSCMITT-BOLKOW-BLOHM GmbH 7 Feb 1972 [13 Feb 1971] 5592/72 Heading H3T In a threshold switch for an input signal of either polarity including four FETs 1-4 of the enhancement type the gates of transistors 1 and 3 of different channel types are interconnected and are connected to the junction of a resistive voltage divider 5, 6, which interconnects the drains of the transistors 1 and 3, the gates of further transistors 2 and 3 of different channel types are connected by resistors 7 and 8 to the drains of the transistors 1 and 3 and are connected together by a second resistive voltage divider 9, 10, the junction of which is connected to an input of the switch, the source electrodes of the transistors 1, 2 and 3, 4 of the same channel type are connected together and to a voltage supply and the output of the switch is taken from one or other of the drains of the transistors 3 or 4. As shown the threshold voltage of the switch is set by the FETs 1 and 3 as determined by adjusting resistor 11 or the supply voltage U. The FETs 1 and 3 are conductive and when the alternating input at E goes positive above the threshold value FET 4 conducts to provide an output at A2 and when the input goes negative above the threshold valve FET 2 conducts to provide an output at Al. The diodes 12, 13, the capacitor 17 and the resistor 15 may be additionally included so as to make the switch operate as a monostable circuit. In the quiescent state of the circuit the diodes 12 and 13 are reverse biased. When FET 4 is made to conduct by a positive input at E the diode 12 is biased on so as to provide positive feed back to FET 2 and cause FET 2 to also conduct. This causes diode 13 also to be biased on and provide positive feedback to the FET 4 so that both transistors 2 and 4 conduct in a short time. The monostable action of the circuit is provided by capacitor 17 and with an input signal of short duration an output signal of greater duration is obtained. The circuit operates in a similar manner for negative inputs at E to make both transistors 2 and 4 conduct. In a modification (Fig. 3, not shown), positive feedback between the transistors 2 and 4 is provided to the substrates of these transistors so that both transistors 2 and 4 conduct in response to a positive or negative input exceeding the threshold and retain their conductive state until the supply voltage or one of the feedback connections is cut. By introducing a time constant circuit, e.g., by connecting a capacitor in series with a resistor (19) in the feedback circuit a monostable circuit can be obtained. The FETs 1-4 may be constructed as an integrated circuit. The threshold switch can be used for ignition of armaments.
Patent GB-604591-A (GB)
Title: Improvements in, and in methods of making, wire drawing dies
IPC: B21C3/18
Filed: 1945-03-06
Abstract: 604,591. Powder metallurgy; making drawing-dies. CALLITE TUNGSTEN CORPORATION. March 6, 1945, No. 5606. Convention date, Jan. 13, 1944. [Classes 83 (ii) and 83 (iv)] [Also in Group II] A method of making a wire-drawing die comprises grinding a nib to provide parallel sides, placing the nib on a central support in a mould, pouring metal powder into the mould over and around the nib, compacting the powder, removing the compact and nib from the mould and sintering to form a dense metallic mount for the nib and then drilling a die opening through both the mount and the nib. A diamond 1 which is to form the nib of the die is ground with upper and lower faces 3, 4, and window faces 5 and 6 and is formed with a conical recess 2 in its lower face. It is then placed in a mould where it rests on a support 7 and is positioned by a needle 17 entering the recess 2. Rods 14 and 15 are inserted between the window faces 5 and 6 and the sides of the mould and a quantity of metal powder 20 is poured in and compressed by a plunger 21 at a pressure of from five to twenty tons per square inch. A conical nipple at the bottom of the plunger forms a recess 23 in the top face of the compact which is removed from the mould and heated in a dry hydrogen atmosphere for half-an-hour at a temperature of from 300-400‹C. This step is followed by the final sintering for half-an-hour also in a dry hydrogen atmosphere. The rods 14, 15 may be of a plastic, which will vaporise under the heat treatment or may be of graphite within a nickel sleeve, the graphite being subsequently drilled out or burned out. Lateral openings are thus left through the die to enable the drilling of the nib to be observed. Starting from the recess 23, the upper part of the mould is drilled and finally the diamond is drilled. The metal powder may be a bronze, comprising 80 per cent copper and 20 per cent tin or brass comprising 60 per cent copper and 40 per cent zinc, in which case the final sintering temperature would be just below the melting-point of the alloy. Preferably, a heat and alkali resistant alloy is used, comprising nickel 64.8 per cent; copper 24.3 per cent; chromium 0.9 per cent and silver 10.0 per cent. To prepare this alloy, 90 per cent nickel powder and 10 per cent chromium powder of 200 mesh or finer are mixed and sintered and then crushed and ground to a fine powder. A mixture of 70 per cent nickel and 30 per cent copper is similarly treated and the two alloy powders thus produced are mixed in the proportions 1 per cent to 20 per cent of the first and 99 per cent to 80 per cent of the second. 90 per cent of this mixture is mixed with 10 per cent silver to form the alloy powder which is poured into the mould. The chromium may be replaced by zirconium, beryllium or aluminium. The final sintering temperature is from 800‹ C.-900‹C. In a modified form, the diamond may be replaced by a nib of tungsten carbide, in which case the rods 14, 15 are omitted from the mould assembly.