baber/WOPTO huggingface dataset:
Patent GB-208429-A (GB)
Title: Improved apparatus for feeding fuel into furnaces of gas retort settings and the like
IPC: C10J3/30
Filed: 1923-02-08
Abstract: 208,429. Williams, A. E. Feb. 8, 1923. Charging.-Relates to apparatus for feeding coke &c. into netort &c. furnaces of the type in which a poker bar carried by a travelling frame is reciprocated by a crank and cross-head, and consists in the provision of means between the cross-head and the bar whereby the stroke of the bar is automatically varied in accordance, with the resistance encountered. As shown. the bar 1 is supported at its lower end upon guide rollers 2 and is furnished at its upper end with a slipper 3 mounted on a guide bar 4, which is connected to a cable 13 passing over a pair of pulleys 11, 12 carried by a. crosshead 9 reciprocated by a crank 7. The cable 13 passes over guide pulleys 14 and one passesover a pulley 15 held against movement by a band brake 16 and also carries a stop 18 adapted to engage a fixed buffer 19. In operation, reciprocation of the cross-head causes the bar 1 to be moved downwardly until the resistance encountered overcomes the brake 16 when the pulley 15 rotates. On the return movement the bar is arrested by a buffer 17 in the path of the slipper 3 and the pulley 15 is turned in the reverse direction until the stop 18 engages the buffer 19. The coke discharged from the retorts is received by a hopper 20 through which the bar 1 works.
Patent GB-534452-A (GB)
Title: Improvements in or relating to compressors for refrigeration systems
IPC: F25B31/00
Filed: 1940-03-01
Abstract: 534,452. Refrigerating - compressors. PRESSED STEEL CO., Ltd., and BRANDON, A. O. March 1, 1940, No. 3889. [Class 8 (i)] [Also in Group XIII] Multiple-cylinder singlestage compressors for vapour compression refrigerating machines are converted into compound or multi-stage compressors by providing them with modified valve plates and cylinder heads. Fig. 2 shows a modified head applicable to twin cylinders, having partitions which form an inlet chamber 114, an intermediate chamber 115 and a final discharge chamber 215. Refrigerant enters by an inlet 116 and is delivered from the first cylinder through the intermediate chamber to the second cylinder and the final discharge chamber and outlet 217. An inlet 117 leads refrigerant from a part of the refrigerating system to the intermediate chamber ; automatic lift inlet and outlet valves are provided. Any unnecessary single stage valves, e.g., in the pistons, are blanked off. Fig. 3 shows a refrigerating system in which the refrigerant from the compressors passes through an oil separator 314 which delivers oil to the crankcase and refrigerant to a condenser cooled by a water coil 319. The liquid refrigerant passes to a valve chamber 321, an intermediate evaporator 323 and a receiver 324 ; a byepass 325 prevents failure of the float valve due to inert gases. Vapour formed passes back to the intermediate compression chamber through a pipe 326 and the inlet 117, Fig. 2. Liquid refrigerant flows through a thermostatic expansion valve 328 to an evaporator coil 330 which controls the thermostatic valve and after heating by the pipe 320 and in the condenser returns to the compressor inlet. The crankcase is connected to the intermediate pressure chamber through a breather 308, alternatively it may be connected with the 1ow pressure suction chamber. The evaporator 323 may be omitted, or may be located in the insulation of the refrigerating cabinet.
Patent GB-732154-A (GB)
Title: Improvements in and relating to gas and liquid contact apparatus
IPC: B01D3/16
Filed: 1953-02-11
Abstract: 732,154. Fluid-actuated valves. NUTTER, I. E. Feb. 11, 1953 [March 3, 1952], No. 3910/53. Class 135. [Also in Group XII] A gas and liquid contact apparatus comprises a bubble tray having an opening for upward flow of gas, a float valve above the tray and arranged to cover the opening and means retaining the float valve on the tray with capacity for tilting and raising movement of the valve away from the opening, upon increase of gas pressure below the tray. As shown in Fig. 3, the tray has a number of rows of openings 17 through which a gas passes upwardly, each row of openings 17 being provided with a valve comprising L-section members 19 which are of a sufficient length to extend over a number of the openings. Transverse L-section bars 22 are provided at intervals across the valves above the junctions between the ends of adjacent members 19, being supported on plates 25 arranged between the rows of members 19 and bolted to the body of the tray as shown. At the ends of the members 19, the vertical flange 21 is cut away to enable the bases 20 of the members to extend under the transverse bars 22 and the upward and lateral movement of the members 19 is limited by the extensions of the base 20 coming into contact with the bars 22 and the plates 25 respectively. In operation, when gas is passed upwardly through the apparatus the valves first open by a pivoting motion of the members 19 about the edge 34, further increased flow of gas resulting in the members 19 being lifted bodily away from the openings 17. The characteristics of the valves may be altered by altering the height of the vertical flange 21 or by making the angle between the upwardly extending flange and the base other than a right-angle. In a modication, the bars 22 and plates 25 may be replaced by providing flanged U-shaped retaining members over each junction between members 19 and in a further modification the moving members of the valves may be formed as flat plates.
Patent GB-690733-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J61/33
Filed: 1949-02-14
Abstract: 690,733. Electric discharge lamps. MULLARD RADIO VALVE CO., Ltd., and HUTCHINSON, H. Feb. 14, 1949, No. 3984/49. Class 39(i). An electric discharge flash lamp of the kind comprising bulbs accommodating cold electrodes and an intermediate tube defining the discharge path, has the crosssectional area of a substantially cylindrical solid electrode sealed coaxially in a bulb at one end of the tube greater than the cross-sectional area of the bore of the tube and the cross-sectional area of the annular space between the surface of the electrode and the surrounding bulb preferably less than and at the most substantially equal to the cross-sectional area of the bore of the tube. The free end of the electrode 1 within the bulb 2 terminates in a substantially hemispherical tip 4 of the same diameter as the electrode body. The electrode 1 can be in the form of a tungsten cylinder, the bulb 2 can be of glass or silica and the tube 6 of quartz. The tube 6 is preferably coiled in the form of a helix between the cathode and anode bulbs. Suitable dimensions are, cathode 4 mm. diameter, tube 2 mm. diameter and annular space 0.25 mm. (measured radially).
Patent GB-253567-A (GB)
Title: Improvements in internal combustion engines
IPC: F02B1/00
Filed: 1925-02-12
Abstract: 253,567. Lindequist, S. Feb. 12, 1925. Pistons, cooling.-In an internal-combustion engine the power pistons d and their rods, are hollow, and channels e' are formed in the rods to connect the hollow piston to the piston compressor space; the piston interior communicates with the bore in the rod, which bore is connected by a channel to a compressor space above the piston g; by these means a flow of gas is maintained through the piston as the one compressor space is under pressure when the other is drawing in a charge.
Patent GB-902793-A (GB)
Title: Improvements in or relating to a compression unit for a folding and gluing machine
Inventor: GOBALET KENNETH CLYDE
IPC: B31B3/64
Filed: 1960-02-04
Abstract: 902,793. Making boxes; packaging machines. BALJAK CORPORATION. Feb. 4, 1960, No. 4052/60. Classes 18 and 94(1). To reduce the space taken up by the compression unit of a box-making or box closing machine, in which the boxes are compressed while the glue is setting, the unit comprises a vertical shaft having two pressure elements 31, 38 accommodating between them the boxes B in a stack, means for intermittently feeding boxes into the bottom of the shaft with their shortest dimension parallel to its longitudinal axis, and compression means coordinated with feeding means for moving the pressure elements 31, 38 alternately towards and away from each other so as to compress the boxes B periodically while they are stationary. A conveyer advances the glued boxes up to the compression unit between a pair of rails 17 until the leading box B5 is lifted by a plunger 25 into the pressure section which has fixed end walls 26, 27 mounted on a base 28. The pressure element 31 is hinged for convenience of servicing at 32, 33 to the end wall 27 and latched to bars 36, 37 on the end wall 26, whereas the opposite element 38 is free to move towards and away from the fixed element 31 and is urged theretowards by roller bearing rings 44 of eccentric discs 43 on parallel cam shafts 41, 42 bearing against reinforcing bars 45 on the element 38, the camshafts being keyed to interconnected arms 50, 51 actuated by a rod 53. The plunger 25 is connected by a connecting rod 70 through crank and cam means powered by drive chain 71 to act in timed relationship with the pressure elements 31, 38. The plunger 25 lifts the bottom box above catches 54, Fig. 13, beneath the pressure elements, which then hold the stack in place while the plunger retracts. The cam mechanism 73, 74, 75, 77 then acts to lower the actuating rod 53 thus tilting the arms 50, 51 downwardly to exert compressive force on the pressure plate 33, this force being maintained until shortly before the entry of the next box into the shaft. The glued boxes are removed from the top of the stack by hand or by a conveyer. Where the box contents are heavy and it is undesirable to subject the lowermost box to the full weight of the stack, the stack may be subdivided by catches and an elevating means operated by a solenoid in timed relationship with the plunger 25. The pressure plates 31, 38 may have resilient facings e.g. of rubber. Prior to entering the compression unit, the boxes are advanced with closure flaps extending laterally from their upper surfaces, adhesive being applied to the underside of the flaps by glue wheels and the flaps then being folded down by ploughs and rails, Fig. 1 (not shown).
Patent GB-1058161-A (GB)
Title: A burglar resistant lock
IPC: E05B35/00
Filed: 1964-01-31
Abstract: 1,058,161. Locks and keys. E. A. ROSENGRENS A.B. Jan. 31, 1964 [Feb. 1, 1963], No. 4271/64. Heading E2A. Access to the parts by means of which a lock 29, Fig. 5 is operated, is through a key path 28, so arranged that the key has to have a flexible portion 30, Fig. 5, to allow the operating part of the key to be inserted into the operative parts of the lock, the key path being provided with guide grooves for the key. In the embodiment shown the key path has straight portions 28a, 28b connected by an arcuate portion 28c, and is provided with quide grooves 32, Fig. 3, which receive guide pins 33, Fig. 5 on the key to direct it into the lock. In a second embodiment the key has a detachable bit and guide pins are provided on the bit and on the key shank. As described the lock 29 is one of four used on a safe or strongroom door 1. Fig. 1 (not shown) to lock bolts 36 in position in recesses 37 in bars 5 which lock the door. The lock 29 and bars 5 are protected by a drill and cut resistant plate 11.
Patent GB-1240051-A (GB)
Title: Screw threaded nuts
Inventor: DAHL NORMAN CHRISTIAN
IPC: F16B33/04
Filed: 1969-01-24
Abstract: 1,240,051. Nuts. N. C. DAHL. 28 Jan.; 1969 [30 Jan., 1968], No. 4308/69. Heading F2H. A nut has a face 10, a bearing face 15, an outer peripheral wall 11 formed with an external groove 14, an internal wall having a threaded portion 12 and a non-threaded portion 13 and a yielding section between the groove and the internal wall so that when the nut is subjected to a predetermined axial load, the yielding section plastically deforms, thus reducing the volume of the groove. The face 15 extends upwardly from the wall 11 to form a truncated conical surface which tends to flatten as the axial load on the nut increases. An induction of the axial load on the nut is provided by filling the groove 14 with a flowable incompressible material 17 which is extruded from the groove as the load increases. Alternatively, the closing of the groove may be detected visually or by a feeler gauge. If the material 17 is made electrically conducting, the extruded material may close an electrical circuit. By making the radius ri of the portion 13 less than or equal to the major radius of the threads 12, the deformation of the yielding section will cause the nut to lock on the threads of a bolt. In a modification, the wall 11 is stepped to increase the area of the face 15.
Patent GB-733823-A (GB)
Title: Improvements in or relating to servo braking apparatus
Inventor: EDGE STANLEY HOWARD
IPC: B60T13/24
Filed: 1953-02-16
Abstract: 733,823. Fluid-pressure brakes. CLAYTON DEWANDRE CO., Ltd. Feb. 8, 1954 [Feb. 16, 1963], No. 4337/53. Class 103 (1). In a pneumatic servo-device for hydraulic brakes, it is arranged that in the event of the servo-fluid pressure being inoperative, the piston in the hydraulic cylinder may be operated by direct mechanical action from the pedal without any interference being caused by the servopiston. As shown in Fig. 1, thrust may be transmitted from the pedal-operated member 17 to the hydraulic piston 2 through a spring 27, sleeve 24, valve 26 in abutment with shoulder 30 on sleeve 11 of main thrust member 8, 9 and projecting rod 10, the servo-piston 5 being able to remain stationary by relative displacement on the outside of the thrust member 8. As shown in Fig. 2, a corresponding action is obtained by thrust from member 57, acting through levers 73, arm 74, member 49 and thrust-rod 52, the servo-piston 5 receiving no displacement in the cylinder 4.
Patent GB-919746-A (GB)
Title: Improvements in or relating to negative resistance pulse generating circuits
Inventor: SCARR ROBERT WALTER ALISTER
IPC: H03K3/315
Filed: 1961-02-06
Abstract: 919,746. Tunnel diode bi-stable circuits. STANDARD TELEPHONES & CABLES Ltd. Feb. 6, 1961, No. 4380/61. Class 40 (6). [Also in Group XIX] A two-phase pulse generating circuit comprises a two-pole negative resistance device having each pole connected through resistance to a source of supply so that the circuit has two stable states of operation, two oppositely directed diodes for respectively applying pulses of opposite polarity to one pole of said element to switch the circuit and means for deriving one phase of pulses from one pole of the device and the other phase from the other pole. In Fig. 4, assuming the left-hand tunnel diode TD is in its high state of conduction, a negative pulse applied to its upper terminal will switch it to a stable state of low conduction whereafter a positive pulse will switch it back to its first stable state high conduction. Outputs of opposite phase are available at the two electrodes of the diodes and these are applied through blocking capacitors to diodes D1 and D2. Diode D1 is so biased from potentiometer V3 that when the right-hand tunnel diode is in a state of high conduction diode D1 is almost conducting whereas diode D2 is biased heavily in the non-conducting direction. Accordingly, a positive-going pulse from the upper electrode of the left-hand tunnel diode will switch the right-hand tunnel diode to a state of low conduction, the opposite phase pulse from the lower electrode of the left-hand tunnel diode being blocked by diode D2. Similarly, the righthand tunnel diode is switched back to its original state of high conduction by the next negative-going pulse at the lower electrode of the left-hand tunnel diode circuit. Circuits such as Fig. 4 may be arranged in a chain to form a binary counter. The tunnel diode may be replaced by a PNPN diode and the rectifiers may be of the gold bonded or backward types. Inductors L are provided partly to remove undesired effects due to circuit capacitance and a capacitor C prevents false operation while the tunnel diode is being switched.
Patent GB-693194-A (GB)
Title: Agricultural binder
Inventor: RONALD THOMAS TOWERS
IPC: A01D37/00
Filed: 1951-02-23
Abstract: 693,194. Agricultural binder. BISSET & SONS, Ltd., J. Feb. 22, 1952 [Feb. 23, 1951], No. 4418/51. Class 6(iii) An agricultural binder comprises a conveyer frame fitted with a vertically adjustable skid 7, and carrying a cutter bar and pivoted along a horizontal axis to one side of a main frame 1, an adjustable reel 9 and a power shaft 21 connected to a tractor power take-off shaft and operatively connected to the cutter bar, conveyer, reel 9 and a binding and knotting mechanism. The machine is mounted on rear castor wheels 2 and is provided with arms 4 each consisting of two laminated springs between which is located a block carrying a pin 5 for attachment to the hydraulic linkage of a tractor. The reel 9 is mounted on a shaft 10 journalled on a supporting bar 11 pivoted on a lever 13 pivotally attached to the machine frame. The reel 9 is adjusted vertically by means of a handle 17 which operates a rod 15 provided with a roller which bears on the underside of the bar 11. The reel is adjusted longitudinally by means of a handle 19 which operates a lever 18 connected to the lever 13 by means of a bar 20. The drive from the power shaft 21 is by means of V-belts and pulleys. For transport purposes the conveyer frame is locked in a vertical position against the side of the binder and the hydraulic linkage is operated to raise the leading end of the binder above its normal operating position.
Patent GB-783162-A (GB)
Title: Improvements in or relating to electron discharge devices employing photo-conductivetarget electrodes
Inventor: LUBSZYNSKI HANS GERHARD
IPC: H01J9/20
Filed: 1953-02-19
Abstract: 783,162. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Feb. 3, 1954 [Feb. 19, 1953], No. 4639/53. Class 39(1). In the manufacture of a tube containing a photo-conductive target 7 and a cathode 2 liable to be damaged by such material during the evaporation of the target material the envelope is subjected to a differential baking process to confine the material to the target and the cathode is also heated to a sufficiently high temperature to prevent the material from being deposited on it. The material may be selenium or selenium and tellurium. Suitable temperatures are : target-10‹ to 95‹C., envelope 110‹ to 300‹C., cathode 400‹ to 500‹C. Additionally, a movable flap 9 may be interposed between the cathode and the target during the deposition process. According to the Provisional Specification, the movable flap may be relied on alone to protect the cathode, without differential heating ; and a protective medium for the cathode, as described in Specification 783,164 may be used additionally to the flap.
Patent GB-679811-A (GB)
Title: Self-dispersible methylolamide compositions
IPC: D06M15/423
Filed: 1946-02-14
Abstract: A dry solid, readily dispersible product comprises a methylolamide of a higher fatty acid, for example stearic, caprylic, lauric, oleic, plamitic, montanic, abietic, decanoic, undecanoic, highly substituted butyric and iso-octyl phenoxy acids, or their N-alkyl derivatives, and the fatty acids of cocoanut, palm, and cotton-seed oils, tallow, and acids from hydrogenated fats, of general formula:- <FORM:0679811/III/1> and 5-20 per cent of a surface active dis-dispensing agent, which dissolves in the molten methylolamide, to render the product self-dispersible.  In general R1 is an aliphatic radical containing at least 7 carbon atoms and R2 hydrogen, or an alkyl radical, or an alkylene radical carrying another methylolamide group, and compounds of this general formula which are solid at room temperature may be used, additional examples being, N, N1-methylene-bis (octadecyl-carbamido-methanol), and N, N1methylene-bis-(stearamidomethanol).  Suitable dispersing agents are alkylated sodium benzene sulphonate, the reaction product of ethylene oxide and oleyl alcohol, sodium sulphonate of ethyl oleate, dioctyl or dihexyl sodium sulphosuccinate, sulphates of fatty alcohols, lauryl sulphoacetate; 7-ethyl-2-methyl-undecenol-4-sodium sulphate, sodium hydrocarbon sulphonate, Emulgor A or a quaternary ammonium derivative of pyridine or mixtures of certain of these.  The product may be prepared by dissolving the surface active agent in a melt of the methylolamide and allowing the resulting melt to solidify. Alternatively the product may be prepared by adding the melted methylolamide to water, with rapid agitation, forming a cheese-like mass, flushing out the water with an organic solvent, e.g. pine oil-turpentine solution and finally kneading the surface active agent into the mass and drying.  The solid product may include agents which enhance the waterproofing effect, e.g. lactic or glycollic acids or heir alikali metal salts, and the solid products made up as emulsions may be used for waterproofing fabrics.
Patent GB-1234744-A (GB)
Title: Short-circuiting rings and method of producing them
IPC: H02K1/17
Filed: 1970-01-30
Abstract: 1,234,744. Making magnetic rings; jointing. SIEMENS A.G. 30 Jan., 1970 [30 Jan., 1969], No. 4716/70. Headings B3A and B3V. [Also in Division H2] A method of making short-circuiting rings for the permanent magnet of an electric motor comprises forming a split ring by rolling from a metal strip, tensioning the ring to a desired diameter and maintaining that diameter by securing a tube to the inside or the outside surface of the ring by a high-velocity forming method. The split ring, which is rolled from iron, is tensioned to the required diameter by means of a mandrel and an aluminium tube is pushed on to the ring. The assembly is then placed within an air-core coil and eddy currents are induced in the tube by discharging a capacitor bank through the coil. The electro-magnetic interaction compresses the aluminium tube so that a part is forced into the split of the ring, thereby maintaining the desired internal diameter after removal of the mandrel. An accurate external diameter is obtained by inserting the split ring into a bore and expanding an aluminium tube against the inner surface of the ring and into the split. The forming may be performed by the hydrospark method.
Patent GB-275877-A (GB)
Title: Friction wheel pocket-lighters
IPC: F23Q2/38
Filed: 1927-02-21
Abstract: 275,877. Hahnle, G. Feb. 21, 1927. No Patent granted (Sealing fee not paid). Pocket igniters, frictional. - The top plate 1 of an inner casing 2 containing absorbent material 3 is provided with a band 15 under which is inserted a rubber ring or other packing material 16 to engage the top edge of the outer casing 17. The hinged lid 14 carries a wick cap consisting of a rubber tube or other packing 20 held between concentric tubes 18, 19. The spring 11 for the lid is accommodated in a tube 10 in the casing 2 and a plate 21 is inserted in the tube 10 to form a container for spare flints 9, the lower end of the tube being provided with a cover plate 22.