baber/WOPTO huggingface dataset:
Patent GB-487174-A (GB)
Title: Improvements in sewing machines
IPC: D05B57/12
Filed: 1937-05-25
Abstract: 487,174. Sewing-machines. MACHINES PTY., Ltd. May 25, 1937, No. 14467. Convention date, June 8, 1936. [Class 112] The invention consists in a simplified shuttle - operated lockstitching machine. Thread from a reel on the spindle 9 is passed through a slot in the plate 4, round the tension device 35, through the take-up arm 33, and through the eye of the needle 20. The thread of the bobbin in the shuttle 39 passes along the slot 50 beneath the spring 40 and back into the slot 51 of the spring. The shuttle 39 is then placed in the carrier 38 so that its point is outside the open end of the carrier with flanges 45 straddling the race 37, the spring 46 forcing the shuttle against the race. The presser foot 25 is raised by the lever 28, the end of which slides along the top of the extension 27, and the pin 31, which secures the lever to the presser bar 26, sliding in the slot 31b. This also raises the feeder bar 23 carrying the feeder foot 23a. The cloth is then placed on the throat plate, the needle being in raised position, and the presser foot and feed foot depressed. The fly wheel 7 is thus rotated, turning the shaft 5 which has a crank 14 carrying a pin 13 working in an open cylinder 12a carried by the two-armed lever 10, one arm of which operates the needle, presser and feed bars, and the other the shuttle. The flywheel may be rotated in either direction. As the needle bar 15 descends, the roller 18 moves along the straight edge 52 of the cam 21 and the feed bar 23 remains stationary. When the roller 18 leaves the straight edge 52 and coacts with the curved edge 53, the presser bar 25 is lowered slightly to press hard on the cloth. In this position, the pin 31 becomes the fulcrum of the cam 21 and further downward pull by the spring 29 tends to raise the L-portion of the cam 21 so withdrawing the extension 24 from the face of the feeder bar 23. The spring 54 then pulls the feed foot 23a to the right. On the reverse movement, when the needle rises, the roller 18 moves upwards along the curved face 53 of the cam 21, first depressing the foot 23a on to the cloth, then raising the presser foot and causing an extension 24 of the cam 21 to push on the upper part of the feed bar 23 to cause the foot to move the cloth to the left. The feed stroke is governed by the position of the cone-pointed screw 32 relative to the feed bar 23. The lever 10 drives the shuttle 39 in unison with the needle by the link 47 in the way usual for making lock-stitches. The shaft 5 is retained in position by a screw 5b engaging an annular recess 5a.
Patent GB-850907-A (GB)
Title: An improved burner tube for oil burner units
IPC: F23D11/00
Filed: 1959-04-28
Abstract: 850,907. Burners. TULIFA-VERKEN A.B. April 28, 1959 [March 5, 1959], No. 14508/59. Class 75(1). [Also in Group XII] A burner comprises a fuel nozzle 3, a conical restriction ring 5 and a cylindrical pre-combustion chamber 6, the ratio of the diameter D of the pre-combustion chamber to the smallest diameter d of the restriction ring being between 1À2 and 1À6, and the ratio of the diameter D to the length L of the pre-combustion chamber being between 1À2 and 1À1. Guide vanes 4 are provided. The tip of the nozzle 3 is located upstream of the smallest diameter of the constriction ring 5.
Patent GB-1363376-A (GB)
Title: Fittings preferably for the assembling of box-shaped assemblies  box-shaped constructions assembled by means of such fittings  and methods for manufacturing such fittings
IPC: A47B95/04
Filed: 1972-03-28
Abstract: 1363376 Furniture joints B JORGENSEN 28 March 1972 14551/72 Heading F2M [Also in Division B3] In the fitting of Specification 1,214,204, each flange portion such as 5b, Fig. 4, is continuous with the adjacent flange portion 2a on the adjacent finger portion. The horizontal shelf boards 27, 29 may be replaced by one through board. The fitting is manufactured by placing a blank (16, Fig. 7, not shown) punched out from a sheet material over blocks 10, 11, 12, 13, Fig. 6, moving a plunger 15 having a profile corresponding to the fitting against the blocks so that the profile is pressed into the interspaces between the blocks whereby the edge parts of the blank are bent at right angles to form the flange portions. The blocks and profile of the plunger have hard chromium plated surfaces, and the block surfaces have a thin layer of lubricant, such as molybdenum disulphide, applied thereto. The plunger profile decreases in height from its extremities towards its centre, e.g. by 1%. If a T-shaped or angleshaped fitting is required, the plunger is replaced by one having the corresponding profile and an interspace(s) between the blocks is (are) filled. Reference has been directed by the Comptroller to Specification 1,214,204.
Patent GB-560577-A (GB)
Title: Improvements relating to the manufacture of asbestos-cement and like products
IPC: B28B1/52
Filed: 1942-10-17
Abstract: 560,577. Asbestos-cement production. TURNERS ASBESTOS CEMENT CO., Ltd., and TURNER, L. A. Oct. 17, 1942, No. 14574. [Class 96] The apparatus described is as shown in Figs. 1 and 2 of Specification 554,132, but the claims are concerned with the vibration of the flexible bar 20 and the trough 15 and chute 16 down which the thick asbestos-cement or like slurry flows to the vibrated roller 29 and the vibrated travelling conveyer-web 1. The vibrations may be at 2000 to 10,000 reciprocations per minute and may be produced as illustrated by units 22 &c. suspended with shock absorbers 24 &c. and with turn-buckle adjustments 57 &c., as by using out-of-balance armatures, or by pneumatic or mechanical means, or the-parts may be positively reciprocated. The slurry is thus continuously vibrated after leaving the tilting feed-trough 8 and is regulated by the vibrated bar 20 &c. and roller 29, the bar 20 having the coarse general adjustment 57 and fine local adjustment 59. Specification 540,463, [Group XXVIII], and 542,926 also are referred to.
Patent GB-1210204-A (GB)
Title: A transmission unit
IPC: B61C5/00
Filed: 1969-03-20
Abstract: 1,210,204. Vehicle driving arrangement. CARL HURTH MASCHINEN-UND ZAHNRADFABRIK. 20 March, 1969 [5 April, 1968], No. 14605/69. Heading B7H. A motorized vehicle has a transmission arrangement comprising a motor 10, preferably electric, mounted in a frame or bogie, the main shaft of which is substantially parallel to the direction of travel and is in driving connection with a hollow transverse shaft (14), Fig. 1 (not shown), carried in the frame, which hollow shaft encloses a drive axle 15 which axle is radially movable relative to said hollow shaft and is coupled to the hollow shaft by a coupling which permits relative radial movement and comprises a pair of links 22 and 23 pivoted to the drive axle and a pair of links 20 and 21 pivoted to the hollow shaft, each of the links being pivoted at its free end to an unsprung floating intermediate member 19. The hollow shaft has a flange 17 comprising two radial arms and the drive axle has a similar flange 18, the links are pivoted to these flanges. Member 19 has two yokes each yoke having two arms, for example 26 and 27. The yoke arms have parts 28, 29 to which are secured pivot pins 30, 31 of the joints of the links. The pins merge into spherical joint elements, e.g. ball joints 32, 33, on to each of which is vulcanized a resilient element 34, 35 e.g. rubber. The resilient elements are fitted with a degree of axial preload which also results in a radial preload.
Patent GB-751167-A (GB)
Title: Improvements in and relating to devices for the adjustment and the fastening of so called balanced flue heating apparatus
IPC: F24C15/08
Filed: 1954-05-19
Abstract: 751,167. Balanced flue heaters. DIEPENBROCK & REIGERS N.V. May 19, 1954 [June 17, 1953], No. 14741/54. Class 126. The box-shaped body of a balanced flue heater from which a flue and an air supply duct project into a conduit adapted to be cemented into the wall of a room is drawn against the end of the conduit solely by tie-members connected to the wall. A flue duct 5 and a rectangular section air supply duct 4 project from the body 1 of an oil fired heater provided with an outer casing 19. A conduit with its outer end closed by a grid 9 is made in two parts 8a, 8b cemented into the wall of a room, and a U-section frame 10, with asbestos packing 11, formed on the back of the heater body 1 is drawn against the end of the conduit 8b by tie-bolts 14 connected to the wall. Part of the frame 10 is formed by the lower wall of the air supply duct 4. Each tie-bolt 14, Fig. 3, is secured in a slot 17 in a bracket 18 on the body 1 by a nut 16 and at its other end carries a radial arm 13 secured to the wall of the room by bolt 12, so that the frame 10 may be easily aligned with the end of the conduit 8b.
Patent GB-873161-A (GB)
Title: Improvements in or relating to video recording systems
IPC: H04N5/93
Filed: 1959-04-30
Abstract: 873,161. Automatic phase control systems. AMPEX CORPORATION. April 30, 1959 [May 19, 1958], No. 14828/59. Class 40(5) [Also in Group XL(b) ] The frequency of an oscillator 252 (Fig. 14) is controlled by a variable reactance tube 253 to which is supplied an error signal derived by phase comparison in 251 of the output of the oscillator with control synchronizing signals derived from amplifier 57. Fig. 14 shows circuit details of the elements 251, 252 and 253. In this Figure the phase detector comprises diodes 257, 258 which are fed with the control synchronizing signals via a phase-splitter 256 and with the output of the oscillator, comprising valve 261 via line 309. The error signal derived from the phase detector is then fed together with a quadrature voltage derived from resistor 278 to valve 259 which operates as a variable reactance shunted across portion of the resonant circuit 293 of oscillator 261. Specification 859,058 is referred to.
Patent GB-542402-A (GB)
Title: Improvements relating to the supply of sump vapours to the induction pipes of internal combustion engines
IPC: F02M25/06
Filed: 1940-10-08
Abstract: 542,402. Supply sump vapours to induction pipes. DUNLOP, S. (Annesley, G.). Oct. 8, 1940, No. 14994. [Class 7 (ii)] An electromagnetic valve controlling the supply of sump vapours to the induction pipe when the engine speed reaches a certain value, for example as described in Specification 535,438, is fitted with mechanical means for ensuring the operation of the valve at the critical speed. This is effected by providing a spring stop 22 so as to be compressed by the electromagnetic valve 12 when this is opened, the spring ensuring the closing of the valve when the speed falls again to the critical value. The valve is arranged in circuit with the engine dynamo 18 and the battery cut-out 31.
Patent GB-637777-A (GB)
Title: Improvements relating to soap-dispensing devices
IPC: A47K5/13
Filed: 1948-06-03
Abstract: 637,777. Soap holders. HAILWOOD & ACKROYD Ltd., and MAJOR, A. June 3, 1948, No. 15028. [Class 131] A pivotally mounted liquid soap dispenser comprises a glass vessel detachably secured to a part of a metal fitting by an inaccessible fastening requiring a tool for its release. As shown screws 24 secure the flange 16 of the vessel 4 between a' split ring 20 and a plate 18 having a rigid, hollow, central spigot 26 to which a nut 32 secures on part 28 of the metal fitting 2 which covers the nuts 24 and to the upper part of which a perforated cap 36 is screwed. The nuts 24 can only be reached and the glass vessel 4 released by successively removing the cap 36 and nut 32 for which operations a special tool, having projections spaced apart to fit slots 38 and 40 in the cap and nut respectively, is provided.
Patent GB-437175-A (GB)
Title: A method of equalising torsional oscillations in four-stroke internal combustion engines having an uneven number of cylinders and equally spaced cranks
IPC: F02B75/02
Filed: 1935-05-23
Abstract: 437,175. Multi cylinder engines. KRUPP GERMANIAWERFT AKT.-GES., F., Gaarden, Kiel, Germany. May 23, 1935, No. 15049. Convention date, June 22, 1934. [Class 7 (ii)] Torsional oscillations in fourstroke engines having an uneven number of cylinders and equally spaced cranks are equalized by making the ignition intervals irregular, the ignition in one cylinder taking place after an interval from that of the first cylinder, which, measured in terms of the crank-shaft rotation, is an uneven multiple of the angle between the cranks. The ignition sequence is then chosen to keep the energy inputs of the principal intermediate harmonics as small as possible. In a five-cylinder engine, the normal ignition sequence of I-II-IV-V-III, may be altered by making the time interval between cylinders III and I three-fifths of a revolution to make its input counteract that of the other cylinders, the sequence then being I-II-IIIIV-V. This reduces the energy input due to harmonics of the 7¢th order but increases those of the 6¢th or 8¢ order. The energy input of the 7¢th order may be further reduced by employing the sequence I-II-III-V-IV but this increases that of the 6¢th and 8¢th order.
Patent GB-1182402-A (GB)
Title: Photographic and Cinematographic Lenses
IPC: G02B13/00
Filed: 1968-03-29
Abstract: 1,182,402. Reverse telephoto objective. ISCO OPTISCHE WERKE G.m.b.H. March 29, 1968 [March 30, 1967], No. 15179/68. Heading G2J. In an objective having a front negative part F separated by a large air space d 2  from the main positive part H, focusing is effected by movement of both part F and the first member L 2  of part H. Optical data are given for the example shown.
Patent GB-404037-A (GB)
Title: Improved means of distributing sound
IPC: H04R1/34
Filed: 1933-05-29
Abstract: 404,037. Acoustic reflectors. VOIGT, P. G. A. H., 53, Church Road, Upper Norwood, London. May 29, 1933, No. 15247/32. Drawings to Specification. [Class 13.] The contour of a reflecting surface used to spread the sound from a horn is made up of more than one curve so that sound on the axis of the horn is spread independently of sound off the axis.
Patent GB-1098679-A (GB)
Title: Ammonium nitrate and explosive compositions containing the same
IPC: C05C1/02
Filed: 1965-04-09
Abstract: Substantially spherical ammonium nitrate prills having a particle density of at least 1.5 gm./c.c. are pressed between rollers to form discs or flakes suitable as an explosive ingredient in explosive compositions.  The discs have a solid, imperforate central portion of density at least 1.6 gm./c.c. and a less dense cohesive periphery of fractured ammonium nitrate particles.  The discs have a surface area of 1 to 50 square metres per gram.  Modifying agents including magnesium nitrate, calcium nitrate, sulphonated aromatic dyestuffs, alkylaryl sulphonates, organic amines, clay, kaolin, bentonite, diatomaceous earth or talc can be incorporated into or coated on the prills prior to pressing.  The ammonium nitrate discs are incorporated into explosive compositions comprising fuel oil, ammonia gels, semi-gels, gas producing compositions or solid propellants. Modifiers are also included in the composition and comprise di- and trinitrololuene; liquid nitrated esters, e.g. nitroglycerine and diethylene glycol dinitrate; polyvinyl nitrate and nitrostarch; synthetic polymeric matrices; inorganic phosphates; iron cyanide complexes; copper oxides and rosin. Incorporated additives include ferrophosphorus, lead salts, ferrosilicon, iron oxides, wheat bran, corn meal, wheat flour, coal, carbon, rosin, soybean meal or bagasse. Catalysts incorporated into the composition include chromate salts, dichromate salts or ferric salts.  Up to 2.5% of water based on the weight of ammonium nitrate can be added to the ammonium nitrate discs.
Patent GB-123287-A (GB)
Title: Improvements relating to Steelyards and like Weighing Apparatus.
IPC: G01G1/26
Filed: 1918-09-19
Abstract: 123,287. Booth, F. A., Southerton, J. F., and Day & Millward. Sept. 19, 1918. Addition to 116,208. Steelyard apparatus; printed records, apparatus for giving.-The steelyard described in the parent Specification is provided on the sliding balance arm a with means for giving a printed record of the weighings. The steelyard a, and the sliding bars d, c for the weighing of small quanties, have type or printing characters on their lower edges. The paper or other strip or ticket is inserted in a lateral slot or aperture f in the body or support b, and is pressed against the type by a platen h operated by a lever g. The arm a and auxiliary bars d, e are preferably of T-section, and the sustaining-shackle is provided with a sight aperture k for the more ready observance of the central position of the index or pointer i.
Patent GB-809127-A (GB)
Title: Improvements relating to epicyclic gearing
Inventor: COULING STEPHEN ARTHUR
IPC: F16H1/28
Filed: 1955-05-27
Abstract: 809,127. Toothed gearing. BRITISH THOMSON-HOUSTON CO. Ltd. May 24, 1956 [May 27, 1955], No. 15404/55. Class 80 (1). In epicyclic gearing in which an outer fixed annulus 1, 2 is provided with teeth engaging with planet pinions 3, the annulus is allowed a limited amount of movement relative to the casing 4 to compensate for irregularities in the gear teeth by means of double-toothed rings 5, 6 engaging with teeth on a ring 7 recessed to the casing and on the annulus, which may be in two separate parts 1, 2. The rings 5, 6 are spaced by an inner member 12 and outer members 13 which form an annular chamber 16 to which oil under pressure is supplied through a passage 15. This oil cushions the any shocks between the teeth of the rings 5, 6, the annulus 1, 2 and the ring 7. Specification 735,593 is referred to. Reference has been directed by the Comptroller to Specification 660,497.
Patent GB-110787-A (GB)
Title: Improvements in and relating to the Manufacture of Formaldehyde.
IPC: C07C45/38
Filed: 1916-10-28
Abstract: 110,787. Boake, E. J., and Boake, Roberts, & Co., A. Oct. 28, 1916. Heating by electricity.- In the manufacture of formaldehyde by catalytic oxidation of methyl alcohol, the reaction vessel is heated by an electric heater passing through or around it; in the construction shown resistance coils c are carried on a frame b which surrounds the reaction tube a.
Patent GB-1312603-A (GB)
Title: Control of the impurity content of zinc sulphate solutions
IPC: C25C1/16
Filed: 1971-05-18
Abstract: 1312603 Purifying zinc sulphate ELECTROLYTIC ZINC CO OF AUSTRALASIA Ltd 18 May 1971 [25 May 1970] 15470/71 Heading C1A A solution, from an electrolytic zinc plant circuit, containing ZnSO 4 , is treated with a neutralizing agent at from 65 C. to the boiling point at atmospheric pressure, at pH 5À4-10À0, for 1 minute to 48 hours to precipitate basic ZnSO 4  and leave undesirable ions in solution, the basic zinc sulphate being separated and returned to the circuit. The neutralizing agent may be limestone of particle size - 325 Tyler mesh, zinc oxide, calcined zinc sulphide, calcined zinc sulphide concentrate, ammonia or ammonium hydroxide.
Patent GB-245355-A (GB)
Title: Improvements in process and apparatus for the control of the feeding of glass-fabricating machines
IPC: C03B7/10
Filed: 1925-06-15
Abstract: 245,355. Miller, W. J. June 15, 1925. Delivering molten metal.-A method of keeping constant the weights of the charges delivered by an automatic feeder consists in regulating automatically the amount of glass in a charge by the amount of glass in a preceding charge. The molten glass is fed through a discharge outlet 1 in a forehearth 2 by means of a reciprocating plunger C which is operated by a compressed air cylinder D. The issuing glass is cut into charges by means of shears E operated by a compressed air cylinder F. The charges are conveyed to the moulds L of a forming- machine, and they are pressed either to form the finished ware or to form parisons, as in a press-and-blow machine. The size of a charge issuing from the outlet 1 is regulated by the extent to which the pressing-plunger M descends into the mould L in pressing the charge, that is, the regulation is effected by the amount of glass in the charge which is being pressed. The plunger is connected to a lever 48 and the movement of the plunger causes this lever to operate a timing- valve S. This valve controls the operation of the shears E, so that the timing of the shears is controlled by the extent to which the plunger M descends into a mould.
Patent GB-737716-A (GB)
Title: Improvements in storage racks for cheeses
IPC: A47B81/00
Filed: 1953-06-05
Abstract: 737,716. Cheese racks. CO-OPERATIVE WHOLESALE SOCIETY, Ltd., EALES, J. G. R., and HALE, E. June 5, 1953, No. 15504/53. Addition to 699,511. Class 84. In the cheese storage rack of the parent Specification, each reversible cheese support is provided with a removable three-sided cheese holder which fits, e.g. slides, into the support. The holder may comprise two shelves e and e<SP>1</SP> each having a longitudinal flange g and end flanges f. The holder can be secured. in the support, e.g. by bolts passing through holes h in the holder and complementary holes in the support. When the holder is out of the support removable struts k may be bolted to the holder to prevent distortion.
Patent GB-162566-A (GB)
Title: Improvements in centrifugal sifting machines
IPC: B07B4/02
Filed: 1920-06-09
Abstract: 162,566. Courtoy, F. June 9, 1920. Rotary sieve.-A centrifugal separator for solids has a number of revolving sieves 1 - - 5 in the shape of buckets with different radii of curvature; the upper bucket 1 deals with the. largest material and has the smallest radius of curvature. The sieves are carried by a revolving shaft 6 and each is surrounded by a shoot 8 - - 12 for the discharge of materials. Fixed plates 13 are mounted under each sieve to bring the. materials back to the centre after passage through a sieve. Any dust is driven from the closed sheet-metal casing by a fan. The material, such as raw coal, is supplied through the hopper 15; the largest pieces are carried over the tray 1 and collected by the shoot 8. The remainder drops. through the perforations in the tray and a similar action occurs on each tray.