baber/WOPTO huggingface dataset:
Patent GB-540101-A (GB)
Title: Improvements relating to laundry folding machines
IPC: D06F89/00
Filed: 1940-04-01
Abstract: 540,101. Folding serviettes &c. CLEGG, F. W., and BAKER PERKINS, Ltd. April 1, 1940, No. 5845. [Class 42 (ii)] Folded serviettes &c. S are fed while on edge into an inverted trough 9 by travelling bands &c. 6. The trough is then tilted over the curved support 13 and its side 8 raised to allow the serviette to slide down the plates 14 and 15 on to the curved part 21 of the stacking trough 20. The stock of serviettes is held in the trough 20 by vertically sliding upper and lower plates 22, 23. The serviette is moved by the pivoted plate 15 up to the stack, the plates 22, 23 are then separated and brought together again behind the last serviette. The plates 14, 15, 22, 23 are made with interfitting teeth 16, 17. The parts are operated by cams 26, 34 on a shaft 27.
Patent GB-664194-A (GB)
Title: Improvements in reeling systems for reelable magnetic records
IPC: D06M11/30
Filed: 1949-03-03
Abstract: 664,194. Magnetic sound recording and reproducing apparatus. RADIO CORPORATION OF AMERICA. March 3, 1949. [March 26, 1948] No. 5886/49. Class 40 (ii). The magnetic record 3 is raised from the magnetic heads 1, 2, during rewinding of the record, by a pivoted member 7. When the record is run in the forward direction again, the member 7 is automatically lowered by the friction of the record against a felt or flock covering 11. A stop 13 supports the member in its horizontal position, and limits its movement, when in the raised position. To prevent lateral movement of the record, the member has raised side plates. The member may be lifted manually by a knob 14. The record is driven more rapidly in the rewind direction than in the reproducing direction. In a modified apparatus, Fig. 4 (not shown), having three separate magnetic heads, a pivoted member is provided between each head, and the two members are pivoted into the raised position by a common yoke. In a further modification, Fig. 5 (not shown), the pivoted member is provided with a spring which tends to bring the member into its upright position, thus allowing the member to be controlled entirely by the direction of travel of the record.
Patent GB-564909-A (GB)
Title: Improvements in or relating to liquid sprayers especially for internal combustion engines
IPC: F02M69/00
Filed: 1943-04-13
Abstract: 564,909. Carburetters. NAPIER & SON, Ltd., D., and WYNNE, C. H. L. April 13, 1943, No. 5903. [Class 7 (iii)] [Also in Group XXIX] A spraying nozzle for injecting fuel into the cylinder inlet pipe comprises a cylinder A formed with rings of perforations A<2> and a skirted piston G formed with corresponding perforations G<1> adapted to be brought into partial or complete registry with the perforations A<2> under pressure applied to the interior of the piston by liquid introduced into an extension A<1> of the cylinder through an inlet D. The exterior of the piston is grooved at G<2>, the outer grooves checking leakage of liquid and the inner ones containing the perforations G<1>. A spring K on the piston-rod F urges the piston to the closed position.
Patent GB-757546-A (GB)
Title: Improvements in or relating to automatic control method and apparatus
IPC: G05B1/04
Filed: 1954-03-01
Abstract: 757,546. Thermo-electric control system. RESEARCH INTERESTS, Ltd., [formerly POLLOPAS PATENTS, Ltd.], WEISHEIT, G., and WEISHEIT [nee LAABS], H., [trading as INGENIEURBUERO WEISHEIT UND CO.]. March 1, 1954 [Feb. 28, 1953], No. 5946/54. Class 40 (3). In apparatus for producing a control voltage in dependence on the position of an indicator pointer, a temperature sensitive element is provided arranged to be heated or cooled to a degree dependent on the pointer position. The temperature sensitive element (Fig. 3) consists of a resistance mass 8 enclosed in a gas-tight bulb or envelope 7 which may be non-conductive. The connection may be fused into the bulb. In alternative arrangements (Figs. 1, 2, not shown) the resistance is exposed to the atmosphere or is mounted in a protective case of ceramic, synthetic resin, or metal. In the arrangement of Fig. 5 such a feeler 18 is mounted in an arm 19 which is set to a value of a quantity, which value is to be maintained. The pointer indicating the value carries a blade 17 the arrangement being that as the blade approaches the feeler the feeler is cooled thereby providing a control signal which may be amplified and used to operate a relay (Fig. 4, not shown). In the modification described with reference to Fig. 6 (not shown) the temperature sensitive feeler is so arranged as to constitute the pointer for the desired value and to be cooled by the approach of the instrument pointer which may or may not carry a cooling surface member. In the arrangement of Fig. 7 the feeler 28 is heated, heat being withdrawn by the approach of a cylindrical blade 26 mounted on the shaft of pointer 27. In the modification of the arrangement according to Fig. 8 (not shown) two feelers are used, one compensating for room temperature. In the arrangements of Figs. 9 and 10 feelers mounted on the meter shaft are cooled as they approach plates mounted eccentrically with regard to the meter movement.
Patent GB-841600-A (GB)
Title: Method of and apparatus for laying pipe lines and the like
IPC: E21B7/04
Filed: 1958-02-24
Abstract: 841,600. Boring earth. ISBRAND, E. G. Feb. 24, 1958 [Feb. 23, 1957; March 26, 1957], No. 5968/58. Class 85. Pipes are laid underground by means of an hydraulic jack 13 at the bottom of a pit 12 which forces the pipe sections 26 successively into the wall of the pit. In a modification a trial rod or small bore pipe is first laid and used to carry a cable 29 to a second pit 35. The leading end of the cable is attached to a winch 28 and the trailing end of the cable to the forward end of the permanent pipe sections. Tension in the cable will then prevent the pipe deviating from a straight path and reduce the effort required from the jack.
Patent GB-1466642-A (GB)
Title: Ac load actuation circuit
IPC: H03K17/79
Filed: 1975-02-12
Abstract: 1466642 Switching circuits for A.C. loads MINNESOTA MINING & MFG CO 12 Feb 1975 [13 Feb 1974] 5990/75 Heading H2H In a switching circuit for a A.C. load 14 comprising a thyristor 10, triac or equivalent complementary transistor circuit, a photon coupler 20 including a photo sensitive element 22 is connected to the gate of the thyristor 10 and is coupled to a capacitor 24 arranged to provide a triggering current which leads the load voltage in phase to thereby provide a maximum triggering current near the zero voltage crossing point and a Zener diode 21 arranged to limit the level of voltage across the photo sensitive element 22 so that the thyristor 10 is only triggered in response to light from an element 18 in the photon coupler 20. As described, the circuit includes a bridge rectifier 12 so as to provide full-wave operation of the thyristor 10. Capacitors 30 and 42 prevent spurious triggering when power is first supplied to the circuit.
Patent GB-855708-A (GB)
Title: Improvements in and relating to the determination and control of compositions in chemical processes by titration
Inventor: BROWN JOHN FREDERICK
IPC: G01N31/16
Filed: 1956-02-27
Abstract: <PICT:0855708/III/1> <PICT:0855708/III/2> An automatic titration apparatus comprises (1) a vessel V (Fig. 1) with electrical level detector 8, electrical draining valve 2, stirrer (not shown) and end-point detector E1 E2; (2) at least one burette B with level detector 12 and filling and emptying valves 6, 7, also fitted with level-finder b; (3) one or more pipettes A, C, for reagents and diluents, these also having level detectors 9, 10, 11, filling valves 1, 3, and emptying valves 4, 5; (4) an electrical circuit associated with the end-point detector E1 E2 (Fig. 5) to give a signal which changes as the end-point is approached, this signal being passed through an anticipation circuit and a trigger circuit to control the outlet valve of the burette so that the reagent is added in discrete amounts with increasingly longer intervals; and (5) a sequencing switch (Fig. 6, not shown) controlled by the level detectors of the burette(s), pipette(s) and titration vessel and by the end-point detector, to control the various electromagnetic valves so that the operations of filling, titrating, measuring and emptying are performed in the correct order.  The end-point detector is preferably a pH meter but may instead be based on change of colour, conductivity or redox potential.  The pipettes A, C, are shown as one being of the overflow type and the other having an electrical level detector but these two types are interchangeable.  The device b is preferably a photo-cell and lamp for detecting the liquid meniscus, but other kinds of electrical and mechanical level-gauges are mentioned as suitable.  Stirring of the titration vessel may be effected by a mechanical stirrer or by blowing an inert gas through the liquid. The sample can be introduced manually or automatically and the apparatus can be arranged to cut off after the end-point is reached or to re-set itself to receive another sample.  The sequence of operations is as follows (referring to Fig. 1):-(1) all valves are shut except 1, vessel V is full from the previous titration, and the sample is flowing through A; (2) valve 1 closes, b moves towards its rest position (continuing through subsequent operations (3) to (6) if necessary), valve 2 opens and vessel empties; (3) valve 2 shuts and 3 opens, filling C with diluent; (4) valve 3 shuts and 4 opens, passing diluent into V; (5) valve 4 shuts and 5 opens, delivering sample into V; (6) valve 5 shuts and 6 opens to fill burette; (7) valve 6 shuts and 7 opens, and titration commences; when about 90% of the correct amount has been delivered the circuit mentioned above comes into play and interrupts the flow from the burette for increasingly long intervals (up to 30 sec. in the end); (8) valve 7 has now closed and the device b records the level in the burette.  The device b which detects the level of liquid in the burette is driven by a motor which also operates an indicator or recorder to show the amount of titrant added.
Patent GB-845715-A (GB)
Title: Production of tetracycline
IPC: C12P29/00
Filed: 1957-02-22
Abstract: Tetracycline is produced by the aerobic fermentation of an aqueous fermentation medium with a Streptomyces capable of coproducing both tetracycline and chlortetracycline by adding to the medium a 2,5 substituted -1,3,4- azole of formula; <FORM:0845715/IV(b)/1> wherein X is NH, S or O; R1 is SH, SR, SOR, SO2R, SO2NH2, bromine or chlorine, R being an alkyl, monocyclic aryl or monocyclic aralkyl; and R11 is H, SH, SR, SOR, SO2R or SO2NH2, R being as hereinbefore defined; or R11 is bromine or chlorine, amino, C1 to C4 alkylamino, allylamino, monocyclic arylamino, monocyclic aralkylamino, acylamino, C1 to C4 alkyl, monocyclic aryl, chloro-monocyclic aryl monocyclic aralkyl, furyl, thiazolyl and pyridyl, the said 2,5 substituted -1,3,4- azole being present in sufficient amount to inhibit the formation of chlortetracycline but insufficient to inhibit the formation of tetracycline.  1-500 and preferably 5 to 100 parts per million of the chlorination inhibitor are added to the fermentation medium.  The fermentation medium and the conditions of fermentation are the conventional ones for tetracycline production.  Bromide ions e.g. as potassium bromide may be present in the medium in quantities of 1 to 6000-7000 parts per million; in which case, less of the chlorination inhibitor of the invention is used to produce the desired result.  Specified chlorination inhibitors are 2-amino-5-mercapto-1,3,4-thiadiazole; 2,5-dimercapto-1,3,4-thiadiazole; 2-phenyl-5-mercapto-1,3,4-oxadiazole; 2-(2-furyl)-5-mercapto-1,3,4-; oxadiazole; 2-benzylmercaptol,3-4-thiadiazole, 2-mercapto-1,3,4-triazole 4-2-(4-pyridyl) -5-mercapto-1,3,4-oxadiazole; 2-ethylamino-5-mercapto-1,3,4-thiadiazole; 2-anilino-5-mercapto-1,3,4 thiadiazole; 2-allylamino-5-mercapto-1,3,4-thiadiazole; 2-acetylamino-5-mercapto-1,3,4-thiadiazole; (2-(2-thiazolyl)-5-mercapto-1,3,4 -oxadiazole; 2-methyl-5-benzylmercapto-1,3,4-thiadiazole; 2-benzylsulphonyl-1,3,4-thiadiazole; 5 anilino-2-benzylmercapto-1,3,4 thiadiazole; 2-methylmercapto-1,3,4 thiadiazole; 2-acetylamino-5-benzyl-mercapto-1,3,4-thiadiazole; 2-acetylamino-1,3,4-thiadiazole-5-sulphonylmethane; 2,5-dibromo-1,3,4-thiadiazole; 2-amino-5-bromo-1,3,4-thiadiazole; 2-acetamido-5-bromo-1,3,4-thiadiazole; and 2-methylamino-5-mercaptol,3,4-thiadizaole.  Specified microorganisms are Streptomyces aureofaciens, S. viridifaciens, S. sayamaensis and S. feofaciens.  Specification 773,453 is referred to.
Patent GB-1389633-A (GB)
Title: Method of and apparatus for continuously manufacturing a pipe
IPC: B29D23/00
Filed: 1973-02-07
Abstract: 1389633 Winding pipes KAKUICHI SEISAKUSHO KK 7 Feb 1973 [29 Feb 1972] 6064/73 Heading B8G [Also in Division F2] In winding a semi-molten strip 15 into a spiral, so that adjacent turns adhere to form a pipe, helical motion is imparted to the developing pipe by three or more (four as shown) rollers 2 rotating at the same speed and in the same direction. The rollers each have four splines 9 each of which slidably engages a groove 10 in an external segment 11. Each segment 11 carries a radially projecting pin 12, which tracks in a stationary groove 13 in a support frame 1. As each roller 2 turns, its segments 11 successively engage the inside of the developing pipe, and those segment 11a in the engaging position are moved axially by their pins 12 so as to produce the axial component of the helical motion. When out of the pipe-engaging position, 11c, 11d, they are returned axially in the opposite direction. The strip 15 which may be of reinforced on unreinforced plastics or of metal passes through a feeding device 14 immediately after it has been extruded. The reinforcement 16, which may be hard synthetic resin may extend to, or project from, one or both surfaces of the strip. The semi-molten material may be a softer synthetic resin, which may be pvc. The reinforcement may impart a corrugated form to the outside of the tube (Fig. 8, not shown).
Patent GB-886774-A (GB)
Title: Apparatus for rewinding paper tissue webs and the like
IPC: B65H19/30
Filed: 1960-02-22
Abstract: 886,774. Endless conveyers ; hoppers. PAPER CONVERTING MACHINE CO. Inc. Feb. 22, 1960 [Sept. 4, 1959], No. 6093/60. Class 78 (1). [Also in Group XVI] Web is wound into rolls on cores supported by mandrels, a horizontal conveyer being provided to move an empty core toward a mandrel prior to a winding operation, resilient pusher means being attached to the conveyer so as to push the core in one direction of travel and then pass by the core when it is in position on the mandrel. As shown, a turret 11, Fig. 3, has a plurality of mandrels 12 movable into a coreloading position B. A frame 14 has a sub-frame 15 extending in alignment with a mandrel 12 in position B, the frame 15 supporting an endless chain 16. The chain has pairs of core-supporting saddles 17, 17a, Fig. 1, which support a core 18. A pusher 19 having spring-urged jaws 46, Fig. 3, is associated with each pair of saddles for pushing a core on to a mandrel in position B. The jaws 46 are of rubber, or other resilient material so that they can flex rearwardly. The chain 16, Fig. 1, is actuated by a chain 20 driven by a motor 20a. Cores 19 are delivered singly to the chain 16 by a hopper 21 provided with a mechanism 40 that only admits a single core to the lower part of the hopper. The mechanism 40, Fig. 3, comprises a plate 41 rocked about a pivot 42 by a cam 43. A stop-mechanism 22, Fig. 4, has a shaft 23 carrying downwardly-extending fingers 25 which control the supply of cores to the saddles. The finger 25 is shown in a corereleasing position in Fig. 4, the finger being rocked clockwise into core-holding position by an air cylinder 26. Wound rolls 37, Fig. 3, are unloaded from their mandrels at a position C by a conveyer 29 having pusher members 29a. A piston in a fluid-pressure cylinder 31 actuates a lever 34 carrying a pusher rod 36 to move unloaded rolls 37 transversely of the conveyer on to a shoot 38.
Patent GB-540142-A (GB)
Title: Improvements in or relating to trimming machines suitable for use in the manufactureof shoes
IPC: A43D87/00
Filed: 1940-04-05
Abstract: 540,142. Trimming shoes. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). April 5, 1940, No. 6153. [Class 17 (i)] In a shoe trimming machine the replacement of a faulty shaft-and-bearing assemblage is facilitated by a construction wherein a shaft having means at one end for carrying a trimming cutter, a rotor of the induction motor secured to the shaft, a plurality of spaced bearings located between the cutter and rotor, in which the shaft is journalled, and means supporting these bearings, are removable as a unit from the machine, the machine having a hollow frame with a wall opening through which the rotor may pass to enter the stator. The shaft 10 is at one end tapered, bored and threaded to carry a sole trimming cutter 13 secured by a screw 15. Bearings 31, 32 for the shaft are carried by a sleeve 30 integral with a flange formed with a concentric shoulder 52 fitting an opening in the wall of the frame housing the stator 22. The sleeve is secured to the frame by screws. The rotor 24 is keyed to the shaft, being pressed on to a sleeve 40 slotted to engage a balanced key 37 also engaging a slot in the shaft. A shorter shaft 11 carries a shank-trimming cutter 17 similarly quickly replaceable. The inner end of the rotor sleeve is integral with a clutch surface 67. A co-operating clutch surface is carried by a belt pulley 70 carried on a shaft 75 urged to operative position by a spring 80 and normally maintained inoperative by an eccentric projection 84 from a shaft which is turned by a handle 82. The belt pulley 70 drives grinding wheels for the two cutters.
Patent GB-1493435-A (GB)
Title: Production of high-purity chlorine from hydrogen chloride
IPC: C01B21/094
Filed: 1975-02-13
Abstract: 1493435 High purity chlorine E I DUPONT DE NEMOURS & CO 13 Feb 1975 [13 Feb 1974] 6159/75 Heading ClA Chlorine is continuously produced by (i) oxidizing hydrogen chloride with an aqueous oxidizing mixture of nitric and sulphuric acids thereby producing a gaseous product comprising chlorine and a liquid product comprising nitrosyl sulfate and spent sulphuric acid and water, and (ii) contacting the liquid product with an oxygen contain ing gas thereby oxidizing the nitrosyl sulphate and regenerating an aqueous mixture of nitric and sulphuric acids, which mixture is recycled to stage (i), where reactions in stages (i) and (ii) are conducted at pressures between 1 and 25 atmospheres and stage (i) is conducted by maintaining a critical water concentration from 23À0% to 27À5% by weight of the oxidizing mixture, maintaining the mol ratio of hydrogen chloride to nitric acid at between 1À8-2À2 to 1, and diverting up to about 10% of the liquid product of stage (i) to a stripper to remove nitrogen-containing species therefrom, concentrating the sulphuric acid thereby obtained and returning this concentrated acid back to stage (i), thereby maintaining the criticial water concentration therein; and the reaction in stage (ii) is conducted by maintaining a critical water concentration from 27À5% to 30À0% by weight of the reactants, thereby producing chlorine of at least 95% purity in a yield of at least 95% based on HCl. Preferably stage (i) is carried out at 80-100‹ C. and 10-15 atmos., and stage (ii) at 80-140‹ C. and 10-15 atmos.
Patent GB-671256-A (GB)
Title: Improvements in or relating to centrifugal governors for fuel injection pumps
IPC: G05D13/08
Filed: 1950-03-13
Abstract: 671,256. Centrifugal governors. MOTORUNION SPOJENE TOVARNY SPALOVACICH MOTORU, NARODNI PODNIK. and BOTTGER, J. March 13, 1950 [March 14, 1949], No. 6224/50. Class 57 A centrifugal governor for a fuel injection pump has its flyweights 8, 8<SP>1</SP> carried by bell-crank levers 1, 1<SP>1</SP> pivoted at 4, 4<SP>1</SP> to the governor hub and connected to an adjusting rod 11, which is linked to the pump control member, by a transverse pin 5 which carries part-spherical collars 6, 6<SP>1</SP> pressed by springs 7, 7<SP>1</SP> into part-spherical recesses in the levers.
Patent GB-271958-A (GB)
Title: Improvements in or relating to absorption refrigerating apparatus
IPC: F25B17/00
Filed: 1926-03-05
Abstract: 271,958. Boving, J. O. March 5, 1926. Refrigerating, absorption machines for. - The cut-off of the fuel and the supply of cooling-water to the gas-heated generatorabsorber a of a reversing apparatus are automatically effected at the end of the generating period by the fusion of a metal plug r in a tube s. The plug r supports rods p, q the uppermost of which has a collar o coacting with a spring- urged trip arm m secured upon a shaft m<1> which controls the gas and the cooling water valves. When released the trip arm is pulled downwards by the spring n so as to turn the shaft m<1> and thus close and open the gas and water valves respectively. The lower rod is raised out of the fused metal before the latter sets by a spring w which is inserted between the top of the tube s and a disc q' carried by the lower rod and upon which the upper rod is supported. A valve is actuated through the shaft m<1> so as to divert the cooling water from the condenser e to the coil in the boiler.
Patent GB-1437690-A (GB)
Title: Tool for expanding or contracting a circlip
IPC: B25B27/20
Filed: 1974-02-12
Abstract: 1437690 Gripping tools WICKMAN MACHINE TOOL SALES Ltd 6 Feb 1975 [12 Feb 1974] 06272/74 Heading B4W A tool for use in fitting circlips on to or into shafts comprises a pair of blocks 10, 11 having aligned threaded bores 13, 14 of opposite handed thread, a screw 14 received in said threaded bores and rotatable to move the blocks away from and towards each other, and a pair of links 25, 26 pivotally connected to respective blocks and engageable with respective ends 32, 33 of a circlip 34. The blocks 10, 11 are L-shaped and have bifurcated limbs 21, 23 and 22, 24 a lower prong 23, 24 of the limbs being extended and arcuately shaped at the outer ends 35, 36 to provide a support for the outer surface of the circlip during fitting. The screw has a hexagonal centre portion 15 and a squared end 19 to facilitate rotation.
Patent GB-1463941-A (GB)
Title: Polycondensates containing hydroxyquinoline end groups and  their use for the preparation of polymers containing metals
IPC: C08G64/00
Filed: 1975-02-14
Abstract: 1463941 Removing metals from waste water BAYER AG 14 Feb 1975 [15 Feb 1974] 6284/75 Heading C1C [Also in Division C3] Polycondensates which can remove metal impurities from waste water have the formula wherein M is the main item of a polyester of a polycarboxylic or carbonic acid or of a polyamide; R<SP>1</SP> and R<SP>2</SP> are independently H, C 1-4  alkyl, phenyl or Ha; Z is CH 2 , CHCH 3 , C 3-5  is isoalkylidene, C 5-15  cycloalkylene or cycloalkylidene, and R<SP>3</SP>, R<SP>4</SP> and R<SP>5</SP> are C 1-5  alkyl radicals. They may be prepared by CO-condensing 8-hydroxy quinolines wherein X is OH, NH 2  or NH(C 2-7  alkyl) (Specification 1,463,942) with the starting monomers for the polyamide, polyester or polycarbonate, which are extensively described. The specified polycondensates are stated to be useful for removing metal impurities, particularly (a) transition metals and Mg, Ca, Al, Pb and Bi from solutions or industrial effluents and (b) by complexing interfering metallic impurities in thermoplastic or thermosetting resins. The absorption of metal ions is reversible and they can be separated from the polymer by washing, e.g. with acids or complex-forming agents.