baber/WOPTO huggingface dataset:
Patent GB-646986-A (GB)
Title: Improvements in or relating to well pumping devices
IPC: F04D13/04
Filed: 1947-08-05
Abstract: 646,986. Deep well pumps. KOBE, Inc. Aug. 5, 1947, No. 21197. Convention date, Jan. 21, 1941. [Class 102(i)] [Also in Groups XXVI and XXIX] A deep well pumping device comprises a first substantially vertical tubing 17, 20 containing a pump unit 23 and a second substantially vertical tubing 24, the two tubings being in fluid communication at their lower ends, and means for forcing fluid downwardly through the second tubing and upwardly through the first tubing to move the pump unit upwardly to the upper end thereof. The pump unit 23 is adapted to rest on a tapered seating in a foot member 21 having a passage 145 communicating with the tubing 24 to which pressure fluid for raising the pump unit is supplied by a surface pump 30 through a two-way valve 45. Upon reaching the surface the head 77 of the pump unit passes into a pump catcher 27 where it is gripped by spring-loaded dogs disposed in transverse supports 69, 70, and a dashpot is provided for cushioning the end of the upward movement. The pump unit as described, is .operated by the pressure fluid supplied by the pump unit as described, is operated valve 45 passes into the upper tubing 17 and through perforations in the upper part 81 of the pump unit to reciprocate a bucket therein, the fluid being distributed alternately to the upper and lower surfaces of an operating piston integral with the bucket by an annular slide valve (see Group XXIX). The fluid to be pumped passes from the well casing 15 through perforations in a gas anchor tubing 149 to the bottom end thereof where it is drawn upon the suction stroke of the pump, through an inlet tube 142, auxiliary check valve unit 129, and the pump suction valve into the pump cylinder. Upon'the next downward stroke the fluid passes through the bucket and upon the following upward stroke it is forced thereby through an aperture in the side of the pump unit downwardly through an annular space between the pump unit and the tubing 20, through passage 145 and second tubing 24 to an outlet pipe 28 controlled by the twoway valve 45. A bleeder pipe 171 is fitted to relieve the pressure in the tubing 17 when the pump unit is to be raised. The auxiliary, check valve unit 129 has a ball valve normally held open by a permanent magnet but which is closed by the pressure fluid passing through the tube 24 when the pump has to be raised. The check valve may be raised by rods.
Patent GB-576247-A (GB)
Title: Improvements relating to fluid pressure braking apparatus
IPC: B61H9/00
Filed: 1943-12-17
Abstract: 576,247. Train-brake signals. WESTING- HOUSE BRAKE & SIGNAL CO., Ltd., SIMMONS, A. W., and KERSHAW, J. W. G. Dec. 17, 1943, No. 21205. [Class 105] [Also in Group XXXIV] In a brake for a railway vehicle, a whistle 20 is blown when abnormal leakage of air from the brake cylinder 1 causes a fall in pressure in the supplementary reservoir 9 sufficiently rapid to cause a pressure difference between the top and bottom of the piston 15 sufficient to raise the piston from the port 19 and admit air from the main reservoir port 17 to the whistle. The pressure difference arises from the throttling action of the passage 18 through which the supplementary reservoir is normally kept charged from the main reservoir.
Patent GB-192722-A (GB)
Title: Briquetting press
IPC: B30B11/02
Filed: 1921-08-10
Abstract: 192,722. Smith, F. H., and Nowak, A. K. Aug. 10, 1921. Hopper-and-plunger machines; strain, preventing.-Relates to briquette presses, particularly for scrap metal turnings &c., of the type in which a plunger and mould are reciprocated in alignment, and consists in providing a yielding connection, for example an hydraulic cushion, between the mould and its actuating-means. As shewn, a plunger 4, Fig. 5 reciprocates within a hopper I in alignment with a mould 6 moving over an abutment block 5. A crank 7 imparts movement to the plunger 4 through crossheads 9. 17 and an interposed, hydraulic link 14; and to the mould, through the crosshead 9, slides 20, links 22, levers 21, links 24, and crossheads 25, 31 with interposed hydraulic links 28. The mould moves for the greater part of its stroke in a direction opposite to that of the plunger, but the links 22 are so dimensioned that a slight reverse movement is imparted to the mould at the end of the forward stroke, so that, upon the return stroke of the mould, the briquette is dislodged by impact against the block 5. A predetermined pressure is maintained by connecting the links 14, 28 through pipes 15, 29, Fig. 3, to cylinders 33, 34 38, 39 working in an air cylinder 37.
Patent GB-239506-A (GB)
Title: A new or improved process for reclaiming used lubricating oil
IPC: C10M175/00
Filed: 1925-08-25
Abstract: 239,506. Aktiebolaget Separator, (Assignees of Miller, P. F.). Sept. 6, 1924, [Convention date]. Recovering waste lubricants.-Used lubricating oils from internal-combustion engines, &c. are made fit for re-use by mixing with a countercolloid causing agglomeration of colloidal carbon, water, &c., separating the impurities by gravity or centrifuging, and evaporating off the gasolene and other light constituents. Using the apparatus shown, used oil is circuited from and to a tank a by a pump f through a pipe d, a strainer e, a heater h, pipes k, and a centrifuge l, dirt being retained in the centrifuge, water being discharged through a spout n and a valve p to a sewer, and clean oil through a spout s. An aqueous solution of tri-sodium phosphate, or oleic acid and soda ash, or already made soap is then added to the oil in the tank or in the pipe line, and the mixture circuited first via the pipe j without passage through the centrifuge, and then partly via the centrifuge to discharge water, counter-colloid, and agglomerated carbon through the valve p. The oil is finally forced through pipes d, y, w and a sprayer 9 on to baffles 10 in a tower u in which it meets air from a heater 7 and a blower 6, and is circuited from and to the tower via the pump f and heater h until all volatile constituents are expelled through a pipe 8. It is then discharged into the tank a by closing valve k and opening valve 5.
Patent GB-577000-A (GB)
Title: Improvements in or relating to hinge fittings for gates
IPC: E05D5/02
Filed: 1944-11-01
Abstract: 577,000. Hinges. NURSER, T. R. Nov. 1, 1944, No. 21309. [Class 65 (ii)] A gate hinge fitting comprises a pair of laterally spaced side cheeks which are connected together at one end by a lug forming a socket or hinge pin mounting and at the other end by two vertically spaced members between which the horizontal rail of the gate passes. In the fitting shown, Fig. 1, the lug 4 forming the socket or hinge pin mounting is welded to one end of the side cheeks 1, 2 which are connected together at the other end by an angle member 8 and a bolt which passes through the holes 11, 12. The angle member 8 and the bolt are so spaced that when the fitting is placed on the gate they abut against the upper and lower sides of the horizontal top rail of the gate. Similarly, the face 17 of the lug 4 and face 9 of the member 8 abut against the inner and outer surfaces of the gate upright.
Patent GB-979668-A (GB)
Title: Aromatic thiazole carboxylic acid halides and process for their manufacture
IPC: C07D277/72
Filed: 1962-06-01
Abstract: 2-Halothiazole carbonyl halide of the aromatic series are prepared by reacting a thiazole carboxylic acid which contains a carboxylic acid group on an aromatic nucleus (fused or substituent) and a mercapto or hydroxy group in the 2-position with an inorganic acid halide in the presence of at least one molecular proportion (based on the thiazole carboxylic acid) of an N-dialkylated formamide or thioformamide or in the presence of an N-alkyl pyrrolidone. Temperatures above 90 DEG C. are preferred.  The usual inorganic acid halide is a mixture of PCl5 and POCl3.  The invention also comprises as novel compounds 2-halothiazole carbonyl halides of the naphthalene series, 2-halobenzthiazole-6- or 7-carbonyl halides and the 2-chlorobenzthiazole carbonyl chlorides prepared in examples. Examples describe the preparation of: 2-chlorobenzthiazole-5-, 6-, and 7-carbonyl chlorides; 4-(21-chloro-41-thiazolyl) benzoyl chloride; 2-(21-chloro-51-benzthiazolyl)-6-benzthiazole carbonyl chloride and 2-chloronaphtho-[1, 2-d] thiazole-7-carbonyl chloride. Products of examples are converted into the corresponding methyl esters.  Bis (5-, 6- and 7-chlorobonyl-2-benzthizolyl) sulphides and disulphides are obtained in a similar reaction but using only half an equivalent of dimethylformamide for the sulphides and none for the disulphides.  They are converted to the corresponding methyl esters. 2-Mercaptobenzthiazole-6-carboxylic acid is obtained by the action of CS2 in alcoholic NaOH on 2-amino-5-carboxythiophenol hydrochloride. 2-Mercaptobenzthizole-7-carboxylic acid is obtained by refluxing 2-amino-7-carbethoxy-benzthiazole with KOH, neutralizing and treating with CS2. 2-(21-Mercapto-51-benzthiazolyl)-6-benzthiazole carboxylic acid is prepared by the action of sodium sulphide and sulphur in aqueous NaOH on 2-(41-chloro-31-nitrophenyl)-6-benzthiazole carboxylic acid, itself prepared by condensing 2-amino-5-carboxythiophenol hydrochloride with 4-chloro-3-nitrobenzoyl chloride in pyridine. 2-Mercaptonaphtho-[1, 2-d]thiazole-7-carboxylic acid is prepared by the action of sodium sulphide and sulphur on an aqueous sodium hydroxide solution of 6-chloro-5-nitro-1-naphthoic acid. Specification 310,815 is referred to.
Patent GB-597477-A (GB)
Title: Improvements in or relating to machines for soldering metal canisters
IPC: B23K1/16
Filed: 1945-08-21
Abstract: 597,477. Soldering ; making cans. SNOW, A., and GANE, R. Aug. 21 1945, No. 21342. [Classes 83(ii) and 83 (iv)] In a machine for soldering metal canisters, particularly the side seams on the flat sides of rectangular canisters, of the kind in which the canister is traversed with the seam at the top under stationary soldering means, the canister operates means for supplying liquid flux and for lifting the discharge valve of the solder container and means are provided for preheating the seam after fluxing and for reheating the seam after soldering. The canisters may be fed by projections 2 on a belt 3 along a bed comprising four guide bars 1, successively beneath the fluxing, preheating, soldering, reheating and cooling devices F, P, S, R, C, respectively. The flux bath, which may contain a 40 per cent solution of' a mixture of 10 parts zinc chloride and 1 part ammonium chloride, comprises a vessel 4 pivoted at 5 and normally resting on a stop 5a and provided with a screwadjusted tapered pin 7 which is engaged by the canister 8 during its traverse so as to tilt the vessel 4 and thus allow flux to run out of an aperture 6 on to the seam. The solution may be held at a constant level by a bird fountain device. The solder bath which may contain a 50/50 lead-tin alloy consists of a vessel 12 with nozzle 13 and an adjustable needle valve 14, the vessel and valve being carried by separate pivoted arms 16, 15, a screw 17 on the arm 16 normally engaging a stop. The canister during traverse engages the arm 15 so as to lift and thus open the valve and also engage the lower end of the nozzle. The bath is maintained at 330‹ C. by electric or gas heater thermostatically controlled. The preheating device consists of gas burners 11 giving a temperature of 180‹ C. to dry off the flux and start melting of the tinplate coating. The reheater consists of gas burners 19 giving a temperature of 230‹ C. to counteract a break in the flow of solder due to vibration or slight buckling due to preheating or trapping of air if the ends are seamed first. The cooling device consists of a narrow elongated nozzle 20 through which a current of air supplied by a blower 21 is directed down on to the seam to cool it dowii to 180‹ C.
Patent GB-836421-A (GB)
Title: Method of making high frequency power dissipating terminations
Inventor: ANDERSON TORE N
IPC: H01P1/26
Filed: 1956-07-10
Abstract: A high frequency power dissipating termination is made by casting a metal, e.g. Al, jacket around a hollow inlay of dissipative material such as silicon carbide, or a ceramic or metal-ceramic.  The inlay is formed in a two-part mould, using a frangible or otherwise removable core to produce a wedge shaped cavity in the inlay, which is fired after removal from the mould. The inlay is then inserted in a two-part mould and the metal cast cast.  The end of the termination is then machined &c. for connection to a related component.  U.S.A. Specification 2,676,307 is referred to.
Patent GB-303206-A (GB)
Title: Improvements in or relating to methods of operating blast furnaces
IPC: C21B5/00
Filed: 1926-08-30
Abstract: 303,206. White, A. E., (Allen, S. G.). Aug. 30, 1926. Extracting.-A method of operating blast-furnace processes, in which an oxygenated blast is used, consists in using a. degree of oxygenation that would cause an excessive smelting capacity as compared with shaft reduction capacity and in proportionally increasing the ratio of ore to coke in the charge. If the shaft temperature becomes too low additional fuel such as powdered coal, fuel oil, &c. may be introduced into the furnace at a. point above the mantle.
Patent GB-409543-A (GB)
Title: Improvements relating to rivets, cotter pins and the like
IPC: F16B9/02
Filed: 1933-07-29
Abstract: 409,543. Rivets; bolts. RENOLD & COVENTRY CHAIN CO., Ltd., Renold Works, TAYLOR, R., 55, Catterick Road, both in Didsbury, and BYROM, J. K., 353, Burnage Lane, Levenshulme, both in Manchester. July 29, 1933, Nos. 21389 and 28399. [Class 89 (i).] Relates to a method of securing together two metal parts, one of which lies within the other and consists in providing one of the parts, for example, the rivet 1, with transverse holes 2 and expanding the metal surrounding the hole to secure the two parts together by applying pressure or a blow transverse to the length of the hole and to the direction in which the expansion is desired resulting in the erushing in of the hole 2 as shown in Fig. 2. The invention is applied inter alia to riveting, securing pivot and cotter pins and locking nuts on bolts. Fig. 14 shows an example in which the bush 32 is employed to secure the pin 28 by applying end pressure and thus crushing the holes 35, some of which extend to the periphery of the bush. A nut 37 is locked to the bolt 39 by tightening and so distorting the originally circular transverse hole 26. A stud provided with a hole in its extremity may similarly be locked in a blind hole. Specification 9304/08, [Class 89], is referred to.
Patent GB-502779-A (GB)
Title: Improved process of and means for increasing the strength values of metal sections
IPC: C22F1/04
Filed: 1938-07-20
Abstract: 502,779. Altering physical structure. DURENER METALLWERKE AKT.-GES. July 20, 1938, No. 21540. Convention date, July 21, 1'937. [Class 83 (iv)] In a process for increasing the strength values of tapering metal sections, more particularly sections of aluminium and magnesium alloys, by stretching, each portion of the length of the section is subjected to a. stretching force corresponding to the cross section of the portion. The length of metal is gripped at the end having the greater cross section and drawn through a brake jaw device. Fig. 2 shows resilient brakejaws 3, 4 adjustable by means of screws 5 and shaped to take angle iron. The upper jaw may be operated by a lever 13, Fig. 4, from the piston 10 of a cylinder 8.supplied with liquid from a pipe 9. Movement of the jaw 3 due to the decreasing cross section of the metal acts through levers 16, 17, 18 and 19 to control a relief valve 15 to decrease the pressure on the metal. Fig. 5 shows jaws for acting on metal of U-section, the side members of the metal section being gripped by means of wedges 3a, 3c, 4a and 6. A similar device with lower wedges also may be used for I-section metal.
Patent GB-426394-A (GB)
Title: Improvements in braking devices suitable for winders, hoists and the like
IPC: B66D5/26
Filed: 1933-08-01
Abstract: 426,394. Winding-apparatus; brakes. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, LINDLEY, A. L. G., Fraser & Chalmers Engineering Works, Erith, Kent, and WHITMORE, F. L., Newland, Burkitt Road, Woodbridge, Suffolk. Aug. 1, 1933, No. 21618. [Class 78 (v)] [See also Group XXXIV] In winding-apparatus employing brakes actuated by brake engines or other power braking means, control means is provided for the engine or braking means which is operable to cause the application of any desired braking force, the control exerted by this means being interrupted by a governor responsive to rate of change of speed if the rate tends to exceed a maximum safe value for which the governor is set. Means is provided which can be operated to restore effective control to the control means in case of emergency or when the hoist approaches the limits of its travel. The winding drum 1, Fig. 1, has brakes 2 applied by weights 3 and taken off by a brake engine 4, the supply of fluid to which is controlled by a valve 6 provided with follow-up gear 7 controlled by the brake handle 18. When this handle is moved to the left, the pilot valve 8 is lowered and connection is established between the engine 4 and exhaust. As the pressure falls, in the cylinder 5, the piston 11 is raised by the spring 12 and moves the lever 13, thereby returning the pilot valve 8 to the position in which it closes the exhaust port 22. The reduction of pressure in the cylinder 5, and consequently the application of braking pressure, thus depends upon the amount of movement of the handle 18. If the handle 18 is moved to the right, the brakes are released in a corresponding manner. In order to prevent the full application of the brakes when a light load is being handled, a governor is provided which consists of a flywheel 23, Fig. 2, mounted on a shaft 24 which carries one of the gears 25 of a differential gear. The gear 26 is driven from the winding drum through the shaft 27, and the intermediate gear 28 is mounted on a spider carried by a casing 29 which is restrained from rotation about the main axis of the differential gear by springs 30 and a dash-pot 31, Fig. 1. A toothed part of the casing 29 meshes with a toothed wheel 33, on the spindle of which are mounted arms 34. Slotted links 35 connect these arms to a lever 36 which is joined by a link 38 to a lever 37 attached to the piston of the valve 6. This valve is returned to its initial position as the hoist approaches the end of its travel, after displacement by the action of the governor by the action of a cam disc 41 driven by the winding drum on a lever 40 connected to the lever 37. An emergency lever 44 operated, for example, by a solenoid 45 is connected to one end of the link 17 in the linkage connecting the handle 18 and pilot valve. The regulating-apparatus may be used also in systems where electric control is employed.
Patent GB-165345-A (GB)
Title: Improvements in machines for hulling beans, peas, and other leguminous vegetables
IPC: A47J17/06
Filed: 1920-07-19
Abstract: 165,345. Tallgren, H. July 19, 1920. Shelling leguminous vegetables.-A machine for this purpose comprisce a receptacle in which are placed a series of sieves 7, 7<1>, 7<11>, 7<111>, the meshes of which progressively decrease in size, beaters 3 and a cover 2 having an aperture through which the vegetables are fed to the upper sieve. The beater shaft 4 is journaled in the cover 2 and is operated manually or mechanically. The vegetables are immersed in water supplied by the cock 12, and, after the pods and peas have been separated by the beaters, the cock 13 is opened and the apparatus is rocked on rockers 15, by which means choking of the sieves is prevented. A pipe 14 supplies air or water under pressure at irregular intervals to a perforated coil, or to the underside of a perforated inverted cone (not shown) either of which may be housed in the space preserved by the packing-ring 9. The ascending water or air agitates the peas and facilitates the action of the sieves. The pods are left in the upper sieve, peas of various sizes on the remaining sieves according to the meshes employed, and dirt escapes with the water. The sieves are provided with handles 6, 6<1>, 6<11>, 6<111>. A door is provided in the side of the apparatus for removal of stones &c.
Patent GB-1349080-A (GB)
Title: Current control arrangement in a seam welding assembly
IPC: B23K9/073
Filed: 1971-04-19
Abstract: 1349080 Automatic current control KOCKUMS MEKANISKA VERKSTADS A B FACK 19 April 1971 [5 Feb 1970] 21736/71 Heading G3R The output current of seam welding equipment is maintained constant by a control system comprising a transistorized/thyristorized type of voltage regulator 11 which is supplied from a mains unit 10 and supplies a welding protector or guard 12 for adjusting the welding current to a desired value, the current from member 12 being sensed by a current transformer 14 whose output is passed to an amplifier 16 and thence to a control unit 17 supplying pulses to the regulator 11. Thus the latter is controlled so that a constant current is obtained in the secondary circuit of the welding transformer whose primary winding is connected to conductors 13. An ammeter 15 or equivalent resistance suppresses transients in the output of transformer 14. To prevent unwanted adjustment of the regulator 11 when the secondary of the welding transformer is opencircuited, a limiting circuit comprising a diode 18 and a potentiometer 19, 20 is provided, the latter being connected to potentials V r  and V k  Thus upward adjustment of the voltage regulator is stopped when the feedback signal from amplifier 16 reaches the reference potential set by adjustment of the resistor 20, upon which the diode 18 becomes forward biased. During short circuiting of the transformer secondary, unlimited downward adjustment of the regulator occurs.
Patent GB-597721-A (GB)
Title: Rotor wing
IPC: B64C27/473
Filed: 1945-08-24
Abstract: 597,721. Helicopters ; aircraft frames. BENDIX HELICOPTER, Inc. Aug. 24, 1945, No. 21740. Convention date, May 29, 1944. [Class 4] Rotary wings for helicopters and other rotary wing aircraft, as shown in transverse section, Fig. 5, are made of laminated wood from two blocks 14, 15, Fig. 2, the hollows 3, 4 being first formed in block 14 and closed in by uniting the two blocks. The grain of the laminµ runs lengthwise of the blocks except for laminae 5, 6, 7 which have the grain crosswise to the others and serve to cut off the hollows from the rest of the block. Shaping of the blocks to air-foil shape is performed after uniting the blocks. The hollows 3, 4 are discontinuous in the length of the blade so as to provide solid rib parts. In addition to hollows 3, 4, a recess 16 in the leading edge of the wing may be provided to receive a bar 17 of metal or other heavy material to shift the centre of gravity of the wing towards the leading edge. The bar is secured directly to the attachment fitting of the wing. In another construction shown in Fig. 7 a longitudinallyarranged series of hollow spaces 18 is formed. A balance bar provided in the nose and made of a steel tube enclosing a lead core 35 is covered by a section 21 of rubber bonded to the bar. Adjustable weights may be provided at the tip end of the bar. In other modifications, the trailing part of the wing may be of hollow form with strengthening ribs and the solid parts of the wing may be tapered to reduce the material in the tip portion. In other constructions the forward parts of the wing may be of heavy material such as plastic impregnated pressed wood laminµ and the rear of uncompressed wood laminµ ; or the laminated blocks of Fig. 2 may be of heavier laminae or of more laminµ, which are compressed to provide greater density, at the portions to form the forward part of the wing., The wing structure may be inherently twisted longitudinally in static condition to compensate for twisting action occurring in flight.