baber/WOPTO huggingface dataset:
Patent GB-761199-A (GB)
Title: Improvements in moulding compositions
Inventor: EMERSON RALPH WALDO
IPC: C08L97/02
Filed: 1954-09-21
Abstract: Acids and acid salts are added to the moulding compositions claimed in the parent Specification consisting of lignocellulosic material, urea and furfural and the mixture is dried before use. Acidic compounds specified are sulphuric, nitric, hydrochloric, phosphoric oxalic and acetic; sodium acid sulphate, ferrous sulphate cupric sulphate, primary calcium, and sodium sulphates, aluminium chloride. Additional acids may be added just before moulding.  In examples (1) 226 parts bagasse were mixed with 12 parts of urea in 50 parts of water and 10 parts of sodium acid sulphate and 9 parts furfural were sprayed into the mixture in a mixer.  The mixture was allowed to stand for 2 hours, dried and stored for 4 months.  The mixture was placed in a mould and heated to 150 DEG  C., a pressure of 200 p.s.i. being maintained; (2) copper sulphate is employed; (3) sulphuric acid is used and nitric acid is added to the dried mixture before moulding.
Patent GB-677448-A (GB)
Title: Improvements relating to framework structures for tents and the like
Inventor: HARRISON FRANK HOWARD
IPC: E04H15/28
Filed: 1949-10-24
Abstract: 677,448. Tents. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Oct. 24, 1950 [Oct. 24, 1949], No. 27313/49. Class 20(i). [Also in Group XXV]. A tent framework comprises means 1 forming at least one tent pole, and a system of extensible ribs 2 attached thereto and consisting of a number of rib sections 2a, 2b, 2c endwise extensible to the ground. The framework is erected by withdrawing a part 1b from a part 1a and inverting the part 1b which is then a push fit in the part 1a to form the pole 1 which is hollow and constitutes a chimney. The eight sections 2a, 2b, 2c, which are channel-shaped in cross-section, and nest within each other, are then extended to the ground, the upper sections 2a being pivotally connected at 3 to the pole 1. The lower extremities of the sections 2c have pivotally secured thereto lengths 5 which are swung down and connected together at 5a to form a perimeter for the framework. Next an outer cover 50, Fig. 14, is applied to the framework and then an inner one 54, the latter having an aperture 55 to accommodate the pole and being supported by a collar 60a on a vertically adjustable sleeve 60 on the pole 1. The tent is completed by struts 10 which are pivotally attached at 11 to the ribs 2 and which are extended to contact the pole 1 at 12, passing through sleeves 57 in the cover 54. Specification 654,530, [Group XI], is referred to.
Patent GB-708756-A (GB)
Title: Improvements relating to flushing cisterns
IPC: E03D1/05
Filed: 1951-11-21
Abstract: 708,756. Siphon-discharge water-waste-preventers. DONALD, P. G., DONALD, B. G., and ASSOCIATED BUILDERS MERCHANTS, Ltd. Feb. 20, 1953 [Nov. 21, 1951], No. 27354/51. Class 26 In a syphon-operated water-waste-preventing cistern, the syphon bell 1, in itself of insufficient weight to initiate the syphonic action, carries an auxiliary weight 4 which may, as shown, engage the edge 7 of a hole in the cover 8 to close it in the normal position. The bell and cistern may be made of a bitumen-base plastic to prevent electrolytic corrosion when a copper valve-ball is fitted, the auxiliary weight being of cast iron. A washer may be fitted between the rim 6 of the weight and the edge 7 of the hole. In an alternative embodiment, the auxiliary weight is permanently attached to the bell and itself carries a pin engaging the operating lever.
Patent GB-1170524-A (GB)
Title: Transistor Bias and Temperature Compensation Circuit
Inventor: RECKLINGHAUSEN DANIEL R VON
IPC: H03F3/30
Filed: 1967-06-14
Abstract: 1,170,524. Transistor amplifiers. H. H. SCOTT Inc. 14 June, 1967, No. 27398/67. Heading H3T. In a transistor amplifier having a base bias signal input circuit comprising a variable resistance device S with two parallel circuit legs connected to the end terminals of the device S to act as current return paths and a resistor R 2  connected between the movable terminal of the variable resistance device S and a current supply lead, one of the circuit legs includes a variable resistance unidirectional conducting device D which undergoes changes in conductance with temperature in substantially the same manner as the transistor and the resistance of the resistor R is very large compared with the resistance of the circuit between the resistor and the current return lead so that the current drawn by the two circuit legs is maintained substantially constant. The diode D can be of the same material as the transistor. The diode D is forward biased and by adjusting resistor 6 the bias is adjusted to ensure matching of the circuit to transistors of different properties and production tolerances. The circuit is shown using two PNP transistors 1, 1<SP>1</SP> having similar input circuits D, 6 and D<SP>1</SP>, 6<SP>1</SP> fed in push pull from a transformer T. In a single transistor amplifier 1 (Fig. 1, not shown), resistors R 1  and R 3  may be removed. In an alternative push pull arrangement (Fig. 2, not shown), using an NPN and PNP transistors operation in class A, B or beyond is possible.
Patent GB-151644-A (GB)
Title: Method of and apparatus for reducing metallic oxides
IPC: C21B13/08
Filed: 1920-09-27
Abstract: 151,644. Bourcoud, A. E. June 17, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Extracting.-In the extraction of iron and other metals, the reducing- gas used is generated by burning solid or liquid fuel completely and causing the combustion products to react with a spray of powdered fuel. The combustion fuel is supplied to a nozzle 5 arranged within a chamber 4, air is fed from a hot-blast stove 2, and the combustion products are transformed by contact with the solid fuel injected through nozzles 10. In a modification, one fuelsupply nozzle only is used to generate the reducing-gas. Ash &c. is deposited in a trap 11, and the gas passes to a rotary furnace 1 which is fitted with helical ribs to agitate the charge. After reduction, a part of the gas may be utilized in a preheating kiln 21, and the remainder is withdrawn through a flue 26 leading to a power house. The reduced ore falls into a tube 23, wherein flux may be added, and is forced by a ram 24 into a crucible, air-tight container, or electric furnace 25.
Patent GB-653163-A (GB)
Title: Improvements in or relating to racks for boots and shoes
IPC: A43D117/00
Filed: 1948-10-22
Abstract: 653,163. Shoe-racks. FREEMAN (ENGINEERS), Ltd., A., and FREEMAN, A. Oct. 22, 1948, No. 27526. [Class 52 (iii)] A factory shoe-rack comprises a longitudinal support sub-divided by transverse partitions 6 into compartments for individual shoes which are supported on longitudinal rods 8, 9 arranged at different levels. The partition rods 7 may have front extensions formed as hooks or pegs on which additional shoes can be hung.
Patent GB-876864-A (GB)
Title: Improvements in or relating to arc welding apparatus
IPC: B23K9/10
Filed: 1959-08-12
Abstract: 876,864. Control systems for welding arcs. WESTINGHOUSE ELECTRIC CORPORATION. Aug. 12, 1959 [Aug. 27, 1958], No. 27539/59. Class 38 (4). [Also in Group XXII] A consumable electrode arc welding apparatus for welding thin gauge material in a shield of gas comprises a direct current power supply unit comprising transformers P, TBS and TVS and a rectifier RX, the supply unit being arranged to have low impedance such that its volt-ampere characteristic droops by from 2-5 volts per hundred amperes in the welding range, the output from the rectifier RX being fed to the welding electrode E by way of a reactor I in order to improve the operation of the welding apparatus at low current values. The reactor I has an air gap in its magnetic circuit and is provided with a tapping 35 in order that droplet deposit or spray deposit welding may be selected. The apparatus may be used for welding stainless steel, mild steel and aluminium in shields of argon, of argon mixed with 5% oxygen and of carbon dioxide. The welding electrodes are between 0.025 and 0.1 inch in diameter and the welding current may be as low as 70 amperes.
Patent GB-667146-A (GB)
Title: Improvements in sliding contact mechanism for conducting heavy electric currents
IPC: B23K11/36
Filed: 1949-10-28
Abstract: 667,146. Supplying current to rotating conductors. SCIAKY, D. Oct. 28, 1949 [Aug. 2, 1949], No. 27674/49. Class 38 (i). [Also in Group XXII] A rotating shaft 25 preferably carrying the electrode wheel 26 of a resistance seam-welding machine, has conducting elements 67 which are loaded by springs 72, 73 so that they are in contact with both the shaft and a stationary arm 13, thereby conducting current from a source connected at the arm to the shaft. The arm 13 has secured thereto two bearing-blocks 48, 50 provided with insulated ball-bearings 52, 53 on which the shaft rotates. A highly conductive bearing surface 66 is fitted to the shaft for the segmented elements 67 which are floatingly mounted, each on a pin 68 which also carries the spring 72 and is embedded at its ends in an insulating block 71 and the bearing-block 50. The springs 73 are normal to the other springs, thereby forcing the elements against the surface 66. The shaft is cooled by passing fluid through a central tube 77, the fluid returning by the insulating tube 81 bridging the arm and the shaft. Cooling fluid may also be fed into a channel 75, 76 in the block 50 and lubricant introduced through a vent 84 in the block 48 to the elements 67.
Patent GB-1120283-A (GB)
Title: Vidicon camera circuit
IPC: H04N5/228
Filed: 1966-06-21
Abstract: 1,120,283. Cathode-ray tube operating circuits. AMPEX CORP. 21 June, 1966 [23 June, 1965], No. 27681/66. Heading H4T. The beam current of a Vidicon pick-up tube 10 is stabilized against variations due to falling cathode emission with increasing age of tube by utilizing a resistor 30 in the cathode circuit to provide some or all (i.e. when supply 32 is omitted) of the operating bias voltage, the resistance of 30 being sufficiently large to maintain that fraction of the beam striking the signal electrode 24 substantially constant when the cathode emission falls. Since a very large fraction of the total cathode emission flows to the focusing electrodes 20, 22, resistor 30 may have a high value without introducing any substantial degeneration of the signal electrode current. A by-pass capacitor is therefore unnecessary and this allows blanking pulses to be fed to the cathode via coupling capacitor 49.
Patent GB-712200-A (GB)
Title: Improvements in spindles for spinning machines
IPC: D01H7/04
Filed: 1951-11-28
Abstract: 712,200. Bearings. SARET, J. M., and BARRERA, R. M. Nov. 28, 1951 [Jan. 12, 1951], No. 27944/51. Class 12(1) In a spinning spindle bearing of the kind in which ball or roller bearings 11, 13 are arranged at the top and bottom of an external tube 1, and the spindle is suspended from a spherical joint having an upper part 10 with a convex spherically curved surface bearing against a concave spherically curved surface on a lower part 9, the bearings can be adjusted by hand or automatically, and the spindle is supported axially by the upper bearing 11 whose outer race also forms the upper part 10 of the spherical joint. The external races of both bearings are screwed to the ends of an internal tube 15, and the internal race 16 of the lower bearing is arranged to be axially slidable on the end of the spindle. The race 16 may be acted upon by a spring 18 as shown, or the spring may be replaced by a nut screwed on to the end of the spindle. A spring 21 is disposed outside the tube 15 and between the lower bearing race 14 and an intermediate sleeve 22 which is located in the external tube 1 by a screw 24. A lubricant container 25 is screwed on the lower end of the tube 1.
Patent GB-684056-A (GB)
Title: Improvements relating to telescopic umbrellas
Inventor: HAUPT HANS
IPC: A45B25/18
Filed: 1950-11-15
Abstract: 684,056. Umbrellas. HAUPT, H. Nov. 15, 1950 [Nov. 21, 1949; Jan. 30, 1950], No. 27951/50. Class 134. In a telescopic umbrella having ribs which comprise three or more telescopically collapsable parts 6, 7 & 8 of which the part 6 having the largest cross-section is the inner part disposed at the umbrella crown 4, a connecting member connected to the inner end of the outer rib part 8 and the umbrella cover 24 is connected to the connecting member which, on shortening the umbrella, passes along a slot in the inner rib part 6 and consequently takes the cover with it. In one construction, Figs. 3, 4 & 6, the outer rib part 8 is so arranged in the middle part 7 that its open longitudinal side faces the back wall 12 of the part 7 and for locking the two parts, a spring 13 which is fixed in part 8 has a nose 14 which engages an opening 15 in the back wall of part 7. The cover 24 is attached to the two ends 25 & 26 of the rib and is also attached at 28 to a sleeve 29 carried by a bracket 30 mounted on the outer rib part 8. When the rib is telescoped, the sleeve 29, which is provided with a widened part 33, is pushed over the end of the rib part 6 which has an inclined surface 32 and a portion 25 which is pushed over the locking nose 14 to enable the outer rib part 8 to be telescoped. The bracket 30 enters a slot 31, Fig. 6, formed by the inwardly bent side edges 9 of the upper rib part 6. A spreader 17 is pivoted by means of a pin 16 to the inner end of the middle rib part 6 which is provided at its outer end with a guiding sleeve 11 which also acts as a stop to limit the drawing out of the outer rib part 8. An alternative form of connecting member comprises a bow 36, Fig. 12, projecting from the back of the outer rib part 8 and passing around one side of the rib to terminate in an eye 37 to which the cover is attached. On telescoping the rib, the neck 38 of the bow passes along the slot in the inner rib part 6 while the rest of the bow remains outside the rib. In an alternative rib construction, Fig. 7, the open longitudinal sides of the inner and middle rib parts 6 and 7 and the back of the outer rib part 8 face the cover 24 which is directly fastened to an eye 34 which projects from the back of the outer rib part 8 and enters a slot in the inner rib part 6 when the rib is telescoped. The spreader 17 is connected by a pivot 16 to the inner end of the middle rib part 7 by means of a strap 35 surrounding the inner rib part 6.
Patent GB-985919-A (GB)
Title: Fitting for dispensing liquids from drums
IPC: B65D39/08
Filed: 1961-08-01
Abstract: 985,919. Taphole bushes. CONTINENTAL CAN CO. Inc. Aug. 1, 1961 [Aug. 26, 1960], No. 27953/61. Heading B8T. A plastics, e.g. polyethylene taphole bush for a drum comprises an annular member 12 having a portion externally threaded at 15 passing through an aperture in a drum end 5, which drum may have a plastics liner 6, and a retaining ring 11 screwed on to the threaded portion. An annular surface 23 of the portion 12 provides a liquid-tight seal with the inner face of the drum and thus prevents the contents from reaching and corroding the cut edge 8 of the aperture. The surface 23 may be bevelled as shown, may be flat, may have integral sealing rings on it or a separate ring held in a groove. It may have a sealing compound applied to it before being fitted. The lower face of the ring 11 may also bear a sealing ring. A portion 13 of the member 12 is of non-circular configuration, e.g. octagonal to fit into a similar shaped aperture so as to prevent rotation of the member 12 during the tightening of the member 11. Recesses 20 are spaced round the retaining ring 11 for use in screwing down the latter. The members 11, 12 may be permanently joined by heat sealing.
Patent GB-186528-A (GB)
Title: Improvements in or relating to valveless pumps
IPC: F04B7/06
Filed: 1921-10-21
Abstract: 186,528. Boonzaier, W. G. Oct. 21. 1921. Addition to 160,508. Valveless pumps.-A valveless pump, as described in the parent Specification, is modified so that the jacket serves as an inlet instead of a discharge chamber, thereby permitting the formation of the piston with one instead of two ports at each end. The cylinder 1, Fig. 6, is formed with suction ports 1<a>, 1<aa> supplying opposite ends of the piston, which connect with the jacket 36 having an inlet 1<c> connecting with the supply pipe. In a modification, the jacket is carried only sufficiently far round the cylinder to embrace the ports 1<a>, 1<aa>. The piston Fig. 5, which is reciprocated and partially rotated at the end of the stroke, is formed with a single port 6<e>, 6f at each end which registers alternately with one of the inlet ports 1<a>, 1<aa> respectively or the outlet 1<b>.
Patent GB-704577-A (GB)
Title: Method of making collapsible containers
IPC: B65D88/16
Filed: 1951-11-29
Abstract: 704,577. Portable containers. CLAYTON, T. A. (United- States Rubber Co.). Nov. 29, 1951, No. 28001/51. Class 66 [Also in Groups V and VII] A method of making the container claimed in Specification 674,582 comprises forming the body of the coated, fabric over a supporting form, securing a head of coated fabric to one end of the body, peeling the body back over itself until one end is opposite the other, securing a second head to the peeled back end and removing the body from the form. As shown in Fig. 11, one ply 19 of coated cord fabric is laid around a cylindrical form 21, the ply being cut so that the cords are at an angle with the form axis. The overlapping end is shaped to the rounded end of the form and an end ply, having the shape of a rectangle with rounded ends and having a central hole which fits over a pin 25, is placed in position and has its overlapping edge rolled on to the rounded end of the ply 19. The next cylindrical ply, which is cut so that its cords are also at an angle with the form  axis but in the opposite direction, is then placed on the form and its-ends rounded and a further end ply, with its cords at an angle to the first end ply, placed in position and its edge rolled over the cylindrical ply. Two further plies are put on, the last one being completely circular - and having- a rubber disc of larger diameter than the ply on its outer side which is shaped to cover the ply joints. An airtight casing, 40. Fig. 16, is then placed around the plies, the expansion chuck 26 expanded to grip the free ply end against the casing and air admitted to push the form 21 out and fold the plies back until the gripped end overlaps the end plies 38. The casing 40 is then removed and the second set of end plies put on in a similar manner to the first. The folded container, still on the form. is placed in a vulcanizer, Fig. 22, until the outside set of end plies contact the end 44 of the vulcanizer where they are held by a vacuum cup 49 and vacuum line 50. Air is introduced into the container via a pipe 46 to push the form 21 out of the vulcanizer and turn the container. When the container has been completely turned the door 43 is closed, the interior of the container pressurized, and the container vulcanized.
Patent GB-1087827-A (GB)
Title: Starch
IPC: C08B31/18
Filed: 1965-07-02
Abstract: In a method of modifying starch to stabilize its paste viscosity and reduce its gelation tendency, an aqueous slurry containing 20-50% by weight of starch and sufficient dichlorinated cyanuric acid or alkali metal or alkaline earth metal salt thereof to provide 0.5-5% by weight of available chlorine based on the dry weight of starch, is maintained at a pH of 8.0-9.0 and 90-175 DEG  F. for 2-4 hours. Specified cyanuric compounds are sodium, potassium, barium, magnesium and calcium salts of dichlorocyanuric acid.  They may be added to a starch slurry as solids or as aqueous solutions, or a mixture of starch granules and solid cyanuric compound may be added to water. An alkali may be added, if required, to adjust the pH to the desired value.  At the end of the reaction, residual available chlorine may be removed by addition of an antichlor such as sodium metabisulphite. The treated slurry may be pasted or may be dried to recover particulate starch.
Patent GB-474655-A (GB)
Title: Improvements in and relating to percussion fuzes for projectiles
IPC: F42C15/26
Filed: 1936-10-15
Abstract: 474,655. Projectile fuzes. BIRKIGT, M. Oct. 15, 1936, No. 28038. Convention date, Sept. 11. [Class 9 (i)] Relates to fuzes of the kind in which the striker is held at safe by a centrifugal device itself locked by a spring bolt, the inertia of which co-operates with the spring to hold the parts at safe until acceleration of the projectile is over. According to the invention, the said bolt is in the form of a pin 11 slidably arranged with its spring 15 in a lateral longitudinal bore 12, and normally engages a recess 14 in a transversely slidably centrifugal member 9, which supports a shoulder 10 on the striker 6. As shown the recess 14 and the tip 13 of the pin 11 are made conical. The nose of the fuze is closed by a plate 7, and this is made conical and attached to the head of the striker 6. Means may be provided for braking the displacements of the pin 11.
Patent GB-1464699-A (GB)
Title: Method of liquid level indication by means of pressure measurement using a bubble tube
IPC: G01F23/18
Filed: 1975-07-03
Abstract: 1464699 Liquid level indication: Pressure transducers LEHMKUHL AS 3 July 1975 [5 July 1974] 28113/75 Headings G1H and G1N Apparatus for measuring liquid level, e.g. in a reservoir in a remote location, comprises a tube 1 connectable by valves 4, 5 to a source of pressure 2 or a pressure transducer 3, the valves 4, 5 and a valve 6 for connecting the transducer to atmosphere being operated according to a desired sequence by means 7. In operation, valve 5 is closed and valve 4 is opened to connect pressure to the tube 1 and blow it down until an electrode 8 at its mouth is exposed to break a circuit through control circuit 28, leads 51, 52 to the means 7. Atmospheric pressure has been taken by opening valve 6. Valves 4, 6 are closed and valve 5 opened and after a delay, a reading is taken by the transducer 3, the signal from which is amplified at 31 and indicated and recorded in any desired manner at 32. The transducer shown comprises a diaphragm 33 having a member 39 engaging a beam type strain gauge 38 on the atmospheric side. A heater 49 and insulated container 60 avert temperature errors.
Patent GB-1401211-A (GB)
Title: Apparatus for mixing particulate material
IPC: B01F5/24
Filed: 1972-06-15
Abstract: 1401211 Storage hoppers CHANTIERS NAVALS DE LA CIOTAT ETAB DU TRAIT 15 June 1972 28123/72 Heading B8S [Also in Division B1] Apparatus for mixing particulate material comprises a container having an outer wall 10 and an inner wall 17 defining an annular discharge gap 18 at the bottom of the container, one or more inclined partitions 19 extending down to the gap 18, and means for feeding material into the container, the arrangement being such that material is fed into the container in successive layers which each extend down to the gap and is discharged through the gap in a direction inclined to the layers so that material is discharged from each layer simultaneously. As shown the feed means comprises an outlet 21 which is rotated when a layer blocks the outlet so as to form the next layer. Various other feed means are described and include a feed means having a series of outlets which are successively blocked by the layers of material, and a feed means including an annular feed channel from which material is discharged pneumatically and the outlet of which is progressively blocked. The portion 19 may be replaced by a helicoidal portion. Also a down feed duct may be formed between the inner wall 17 and a wall extending down from the partition. A mixing container as described may be fitted to the top and/or the bottom of a storage silo.