baber/WOPTO huggingface dataset:
Patent GB-493700-A (GB)
Title: Improvements in and relating to laundry ironing machines
IPC: D06F67/08
Filed: 1937-03-12
Abstract: 493,700. Ironing-machines. POINTON, J. E., TANQUERAY, D. Y. B., DEWHURST, F., and BAKER PERKINS, Ltd. March 12, 1937, No. 7364. [Class 138 (ii)] The bed or each section of the bed of a roller ironing-machine is formed as a solid plate 21 having contiguous or embedded or partially embedded steam pipes 1 ... 16. For minimizing or equalizing stresses occasioned during the heating up or cooling down of the bed, the pipes 1 ... 8 are spaced apart differently from the pipes 9 ... 16 and they are so arranged that five and a half pipes are provided in the crests above the line x containing the centre of gravity. Six of the pipes are connected to one steam supply header and the other ten are connected to another header, the steam preferably passing through the two series in opposite direction. The bed is heated initially by passing steam through one series only. An I-girder, which may or may not be heated, may be provided at the bottom of the bed, the two coacting surfaces being machined, and an intermediate layer of copper or other conductor may be arranged between them. This has the effect of lowering the centre of gravity, whereby there may be as many pipes above as are below the line x, thereby balancing the stresses tending to distort the bed longitudinally. In other forms, the number or diameter of the steam pipes or the depths to which they are embedded may be varied.
Patent GB-221436-A (GB)
Title: Chairs
IPC: A47D1/00
Filed: 1924-03-24
Abstract: 221,436. Bishop, W. H. March 24, 1924. Nursery seats; adjustments.- The inner part X of a nursery chair is held in raised or lowered position by the engagement of pivoted spring-pressed frames F, notched at L, with rails G<2>, or G<3>.
Patent GB-741180-A (GB)
Title: Improvements in or relating to liquid immersed electric circuit breakers
Inventor: FLURSCHEIM CEDRIC HAROLD
IPC: H01H33/14
Filed: 1953-03-18
Abstract: 741,180. Liquid-blast switches. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Feb 19, 1954 [March 18, 1953], No. 7521/53 Class 38(5) In a liquid blast switch a moving contact assembly 3 comprises a first pair of contacts 9 (one shown) which co-operate in respective arcing chambers 5 with stationary contacts 1. a further pair of contacts 20 in series with the first pair of contacts and arranged in the assembly in a further arcing chamber 18 or respective arcing chambers and a conducting bridging member 23 to interconnect the further pair of contacts. The switch shown. in Figs. 1 and 2 has six "breaks" and has a moving contact assembly 3 with parallel spaced insulating boards 4 carried on and movable with an operating rod 2. Arcing chambers 5 housed between the boards 4 each contain one contact of the first pair of contacts, i.e. a pivoted contact 9 biased upwardly by a spring 13; A further arcing chamber 18 extends transversely of the boards 4 on each side of the rod 2 and houses a pair of stud contacts 20 and a bridging member 23. Each member 23 is provided with pivoted spring-biased contact fingers 24, is carried on a plunger 29 and is upwardly biased by spring 33. When the assembly 3 is moved upwards to close the switch, as the stationary contacts 1 enter their respective arcing chambers 5, the plungers 29 come into engagement with a fixed member 35 so that the upward movement of the bridging member 23 is arrested and as the upward movement of the assembly continues, the contacts 20 are brought into engagement with the contact fingers 24. In a modified arrangement, Figs. 5 and 6 (not shown), the arcing chambers 5 are fixed around the stationary contacts and two or three further arcing chambers in the 'assembly (as 18) extend parallel to. a single supporting board.
Patent GB-258492-A (GB)
Title: Process of producing machine-braided lace-insertions for table covers or centres, curtains and the like
IPC: D04C1/00
Filed: 1926-03-19
Abstract: 258,492. T³rck, E. March 19, 1926. Drawings to Specification. Braid.-Machine-braided insertions for curtains, table centres, &c. are produced as portions of a continuous fabric with parallel edges, and the parts not required in the finished product are cut away by hand. The threads not cut are turned back at or near the edges of the insertion so as to reduce fraying out.
Patent GB-508410-A (GB)
Title: Improvements relating to machines for grinding pens or pen nibs and for other like purposes
IPC: B24B19/16
Filed: 1938-03-12
Abstract: 508,410. Grinding pen nibs &c. MITCHELL, and BATEMAN, J. March 12, 1938, No. 7764. [Class 60] In a machine of the kind described in Specification 231,646, [Class 60], for grinding pen nibs, &c., the cams a which oscillate the workholders are adjustably and' removably mounted on the shaft b. For this purpose, each cam has a radial slot f to receive the shaft at its inner end, and arcuate slots d, for example, three as shown, through which pass locking screws c engaging flanges e on the shaft b. The slot f is closed at its outer end by a piece g secured by screws h and forming a part of the cam surface. The cams for tilting the work-holders may be formed similarly, but may have the slot f omitted.
Patent GB-765453-A (GB)
Title: Improvements in or relating to apparatus for obtaining measurements of the frequency of electric oscillations
Inventor: BRYDEN JOSEPH EASTO
IPC: G01R23/04
Filed: 1952-03-26
Abstract: 765,453. frequency measurement. GENERAL ELECTRIC CO., Ltd. June 19, 1953 [March 26, 1952], No. 7772/52. Class 37. [Also in Group XL (b)] In apparatus for determining the frequency of an electric oscillation the latter is coupled to a resonant device provided with tuning means periodically varying its resonant frequency over a range of frequencies, and distinct tuning means for adjusting its mean resonant frequency irrespective of the periodic variations ; a detector amplifier device being coupled to the resonant device to derive signals corresponding to the amplitude modulation of the oscillations in the resonant device due to the periodic variations of its resonant frequency and such signals being phase compared with other signals of similar frequency synchronous with the periodically varying resonator tuning to produce a unidirectional signal actuating a meter which reads zero when the mean frequency of the resonator circuit is adjusted to equivalence with that of the input oscillation. Figs. 1, 2 show an enclosed coaxial line resonator for frequencies of the order of 2000 mc/s. comprising a hollow metal cylinder 2 closed at its lower end by a metal plate 7, into the closed upper end of which an axial metal rod 3 protrudes to an extent regulated by a micrometer head 6 adjustable to tune the system, which is equivalent to a coaxial line short-circuited at one end and opencircuited at the other, having a length of #/4 at the resonance frequency. An oscillation at unknown frequency is coupled to the resonator over a coaxial cable and input probe 8, and an output signal is picked up on a loop 9 connected to a crystal detector 11, while the resonant frequency of the resonator is cyclically varied by the rotation at 25 r.p.s. about its diameter of a copper disc 12 in the magnetic field of the resonator by a motor 13 of the kind described in Specification 738,159, [Group XXXV]. The resonant frequency is thus varied by 4 mc/s. in either side of its mean value at a frequency of 50 c.p.s., and the rectified output from the detector 11 having a superimposed 50 c.p.s. modulation is passed through a low pass filter 16 (Fig. 3) of cut off 100 c.p.s. to an amplifier 17 feeding a phase discriminator 18 where it is compared with the 50 c.p.s. mains supply to the motor, to produce a D.C. output depending in amplitude and sense on the amplitude and phasing of the 50 c.p.s. rectified oscillations relatively to the motor excitation, which energizes a centre zero meter 20 reading zero when the input frequency is that of the resonator, and deflected in opposite directions for input frequencies greater or less than that of the resonator. The tuning head of the latter is frequency calibrated so that an unknown frequency is determinable by tuning the resonator until the meter reads zero. The resonator may be of the waveguide cavity type, and the modulation may be achieved by rotating a dielectric disc in the electrostatic field of the resonator.
Patent GB-755448-A (GB)
Title: Dental material
IPC: A61K6/083
Filed: 1954-03-17
Abstract: The esterification product of a polymerizable alpha-beta unsaturated carboxylic acid and a polyglycol monoalkyl ether is polymerized in bulk with or without one or more copolymerizable vinyl compounds in the presence of a redox polymerization catalyst.  The polymerizable mix may also include preformed polymers, e.g. polymethyl methacrylate, dyes and fillers such as titanium, zirconium or zinc oxide.  The esterification product may be the methacrylate of diglycol monomethyl ether, or of polyglycol monomethyl ether made by reacting ethylene oxide with diglycol monomethyl ether in the presence of metallic sodium and esterifying the product with methacrylic acid.  Copolymerizable compounds mentioned are bis-diglycol monomethyl ether maleinate, diethylene glycol dimethacrylate, and esters of acrylic and methacrylic acids.  The catalyst may be a mixture of tributylamine, or p-toluene sulphinic acid with benzoyl peroxide. The process may be used in dental prosthesis.
Patent GB-310148-A (GB)
Title: A new or improved device for holding safety razor blades to enable them to be stropped
IPC: B24D15/10
Filed: 1928-03-14
Abstract: 310,148. Gibbons, K. M. March 14, 1928. Stropping-apparatus for safety-razor blades consists of a channel-section holder 1 carried by a handle 2 and having slidable therein, on balls or rollers 8 in a cage 9, a carriage 3 provided with bearings 20, 21 in which is rotatable a bush 19. The razor blade 10, shown as a doubleedged blade, is carried by a clip consisting of two parts 12, 13, formed respectively with recesses and studs to engage the holes in the blade, and secured together by a screw 14, reduced ends 15, 16 of the parts being adapted to be held in the bush 19 by a screw 22; the ends 15, 16 and the hole in the bush may be non-circular. In the bush 19 is screwed a transverse bush 24 in which is loosely mounted a pin 25 with rounded ends, the pin being adapted to enter one or the other of two holes 26, 27 in the holder 1 and being prevented from falling out by a U-shaped plate 28. Arms 30, 31 project from the carriage 3 to rest on the strop and to protect the blade edge; the outer ends of the arms may be joined by a cross-piece forming another bearing for the parts 12, 13. In operation, the device is moved to and fro along the strop, the carriage sliding in the holder, and the pin 25, by its engagement with the hole 26 or 27 causing the blade to rock into contact with the strop; springs 32 at the ends of the carriage bear on the holder and serve to centralize the carriage and also to lift the blade from the strop at the ends of the stroke, which action also is assisted by a spring 33 having its ends engaged in a slot in the bush 19. The parts 12, 13 may be modified for stropping singleedged blades.
Patent GB-313895-A (GB)
Title: Improvements in the manufacture of continuously loaded electric cables
IPC: H01B11/14
Filed: 1928-03-14
Abstract: 313,895. Standard Telephones & Cables, Ltd., Riley, T. N., and Cole, R. A. L. March 14, 1928. Continuously loaded cables, comprise a conductor wrapped with a paper or guttapercha strip coated with finely-divided magnetic material, such as nickel-iron alloy, which may be in powder form. The alloy may be sprayed on or affixed by adhesive, and varnish may be sprayed on to insulate the magnetic particles from each other. A thin film of magnetic material may be sandwiched between guttapercha strips.
Patent GB-579686-A (GB)
Title: Improvements relating to electric discharge lamps
IPC: H05B41/30
Filed: 1944-04-27
Abstract: 579,686. Discharge lamps. SIEMENS ELECTRIC LAMPS & SUPPLIES, Ltd., and ALDINGTON, J. N. April 27, 1944, No. 7887. [Class 39 (i)] A high pressure mercury vapour lamp with at least one of the running electrodes heated independently of the discharge has a filling of an inert gas at a pressure not less than one hundred millimetres of mercury. In the form shown a lamp L for signalling or photography has a filling of argon, neon, helium, krypton or xenon or a mixture thereof at a pressure, preferably 500-760 mm., and if of quartz may have a coating of luminous material which may alternatively be on the inner surface of the outer jacket J containing air, nitrogen or argon. . The cathode C and, if desired, the anode A may comprise a tungsten filament enclosing barium and strontium silicates with or without thorium oxide and are connected to batteries CB, AB or auxiliary windings CS, AS on the transformer P provided for charging a condenser K which, on discharge, applies a voltage of the order of 4000 volts to the electrodes. If this is above the striking voltage the lamp will strike but the discharge will terminate as the condenser discharges and recommence on its recharge. If such repeated discharges are not required, the condenser voltage must be slightly below the striking voltage and the discharge started by bringing up a high frequency field (Tesla ,coil TC) or by auxiliary electrodes. The electrode spacing may be 40 mm. in a tube 38 mm. diameter and the seals must be suitable for heavy currents.
Patent GB-681620-A (GB)
Title: Improvements in and relating to means for slidably supporting a tool or machine part
IPC: B21D7/06
Filed: 1950-03-29
Abstract: 681,620. Vices; sawing machines. KENNEDY, W. H. March 29, 1950, No. 7897/50. Classes 61 (ii) and 145 (ii). [Also in Groups XXII and XXXIV] Means for slidably mounting a tool or machine part comprise spaced parallel rods of hexagonal cross-section, a further hexagonal rod extending between and slidably supported thereon with opposed flat sides engaging adjacent flat sides of the parallel rods, a tool or machine part being mounted on the rod or rods. The slidable jaw 3 of a vice, Figs. 1 and 3, is mounted on a short hexagonal rod 4 supported on a pair of hexagonal rods 1 and 2 carrying the fixed jaw 6, the rod 4 being held on the slide by a short hexagonal rod 5 secured to the underside of the rod 4. The jaw 6 is similarly mounted on the slide by short hexagonal rods 7 and 8 secured to the rods 1 and 2. The operating screw 9 extends through a hexagonal nut 10 secured to the rods 1 and 2, the inner end of the screw being rotatably mounted in the supporting rod 4 of the jaw 3. A reciprocating saw frame 12a, Figs. 4 and 5, of hexagonal cross section has secured on its upper side a rod 14 of similar cross section, the assembly being slidable on spaced hexagonal guide bars 15,16.
Patent GB-268353-A (GB)
Title: Improvements in or relating to continuous-feed cinematographic apparatus
IPC: G03B41/10
Filed: 1927-03-23
Abstract: 268,353. Huc, M. R. March 24, 1926, [Convention date]. Kinematograph apparatus.-In continuous-feed apparatus having a cylindrical gate and a reflector oscillating about the axis of the cylinder for optical compensation, the film images are framed by an oscillating aperture plate moving with them across the gate; a second reflector may be provided to correct the reversal of the image caused by the compensating reflector, means may be provided for adjusting the image masking, and a sprocket may be provided to relieve the film in the gate from the tension produced by the filmwinding means. As shown in Fig. 2, the film 1 is drawn through a cylindrical gate 3 and under a roller 35 by a sprocket 21, and passes thence in a loop to a driven sprocket 48 which relieves it from tension due to the take-up spool 47. An aperture plate 14 carried by a rocking arm 22 moves with the film, and the projection beam from a condenser 7 is reflected by a rocking compensating mirror 9 and by a prism 15 through a projection lens 12. The mirror 9 is rocked bv an arm 18 bearing on a cam 16 secured to the shaft of the sprocket 21, the cam being such as first to rotate the mirror, at half the angular velocity of the film images about the axis of the mirror, during the film-exposure period, and then to return the mirror to its original position, the complete cycle being performed once during each movement of the film through an image depth, and the projection beam, during the return movement, being cut off by a shutter 65. As shown, the cam 16 and the sprocket 21 make one revolution for each four cycles, but the cam may make one revolution during each cycle, being associated with a sprocket which also makes one revolution per cycle, or being driven at four times the speed of a sprocket making one revolution during four cycles. The arm 22 is rocked at twice the angular velocity of the mirror 9 by gearing from the mirror spindle; forms of sun-and-planet and differential gearing are described for the purpose. The film masking may be adjusted by displacing the roller 35 by a handle 38 on a bell-crank lever 36. The reflectors may be other than plane so as to simplify the objective or render it unnecessary. The Specification as open to inspection under Sect. 91 (3) (a) comprises also means for adjusting the film masking wherein a sprocket 21, Fig. 6 (Cancelled). is loose on its shaft 17 and has an internally-threaded prolongation 39 engaged by a screwed member 40 axially but not rota.ta.bly movable on the shaft. Movement of the member 40 is effected by a handle 46, screw 45, nut 44, and finger 43, and produces rotation of the sprocket 21 relative to the shaft 17. The illuminating system may also be such as to cause the light spot on the film to move with the pictures. This subject-matter does not appear in the Specification as accepted.
Patent GB-1376532-A (GB)
Title: Method of and apparatus for obtaining a continuous and regular flow of molten metal
IPC: B22D11/18
Filed: 1972-02-22
Abstract: 1376532 Automatic control of fluid flow INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAISE 22 Feb 1972 [2 March 1971] 8065/72 Heading G3R To maintain a continuous and constant flow of molten metal to metallurgical plant, e.g. for a week, metal from a primary ladle 1 is poured into two or more intermediate vessels 2, 3 which are tilted in turn to produce the required flow at 5, the tilting rate being controlled in response to the difference between a reference signal and a signal derived by continously weighing the tilted vessel. The difference in the signals, which are in digital form, is processed in a regulator having P.I.D. characteristics and is added to the reference signal to control the speed of a motor which operates hydraulic tipping jacks. At a prescribed weight or position of the tilted vessel tipping of the second vessel is initiated; when flow from this commences (detected photo-electrically) the first vessel is either tipped back to stop the flow or tipping is halted to allow the flow to decrease gradually, in which case the sum of the flows from the vessels is compared with the reference.
Patent GB-1502654-A (GB)
Title: Pneumatic tyres
IPC: B60C9/18
Filed: 1975-02-26
Abstract: 1502654 Radial ply pneumatic tyres PNEUMATIQUES CAOUTCHOUC MFR ET PLASTIQUES KLEBER-COLOMBES 26 Feb 1975 [26 Feb 1974] 8113/75 Heading B7C A radial tyre preferably of an aspect ratio not greater than 80% and having one or more carcass plies comprises, in each shoulder region, an annular reinforcement adhered to the carcass and partly underlying the breaker. The reinforcement comprises two strips 18, 19 of an anisotropic rubbery mixture, with the direction of maximum resistance to extension of each strip making an angle of between 20 and 60 with the mid-circumferential plane of the tyre. Said directions of the superposed strips of each pair cross, and in said direction each strip preferably has a modulus of elasticity of at least 200 kg/cm<SP>2</SP> at 100% extension. Each strip 18, 19 preferably extends beneath the breaker for a distance of 15-25 mm and away from the breaker for a distance of 15-20 mm. Preferably the strips 18, 19 at each edge of the breaker are staggered by at least 5 mm. The thickness of each strip 18, 19 is preferably between 1 and 1À5 mm. As shown, a layer of rubber 20 of a modulus of elasticity of at least 40 kg./cm<SP>2</SP> at 100% elongation and a Shore A hardness of approximately 80 degrees is placed between the breaker plies at each edge of the breaker. The layers may each be made of two superimposed strips of an anisotropic rubbery mixture with the direction of maximum resistance to extension of each layer making an angle of 20-60 degrees with the mid-circumferential plane, and with said directions of the associated layer crossing. In an alternative embodiment (Fig. 1, not shown) the radially inner breaker ply is folded at its margins around the edges of the radially outer ply. Each strip 18, 19 is preferably made from a mixture of a rubber, a polyolefin, such as high molecular weight polyethylene or isotactic polypropylene, of 25 to 50 parts by weight of the rubber, and/or discrete fibres of glass, nylon, cotton or wood in a proportion of 5-10% by weight of the rubber. The mixture is made into sheets in which the fibres or polyolefin particles are Orientated longitudinally of the sheets. The strips 18, 19 are then cut on the bias from the sheets, and incorporated into the tyre during building. The carcass ply or plies may include cords of rayon, nylon, polyester, glass fibre or metal.
Patent GB-199453-A (GB)
Title: Improvements in or relating to work supports for shoe nailing and other machines
IPC: A43D71/02
Filed: 1922-03-21
Abstract: 199,453. British United Shoe Machinery Co., Ltd., and Roberts, W. T. B. March 21, 1912. Loose-nailing.-Acurved rotary horn for boot or shoe loose-nailing machines is adapted to be movable by hand laterally between operative and inoperative positions the former of which is determined by a stop. The horn 8, Fig. 1, is pivoted, between ears 6 of a horn carrier 2, on a pin 9 which has flattened ends adapted to slide in slots 10 in the ears 6. The carrier 2 is arranged for rotation on the horn post 1, on which it is retained by a pin 3 and recess 4. The part 7 of the horn between the ears 6 has a stud 12 which engages a corresponding recess in the carrier 2. To cant the horn into inoperative position, it is merely lifted until the stud 12 is clear of the recess, when the horn pivots about the pin 9. On the reverse movement. the stud encounters a stop pin 15, whereupon it falls into the recess. In a second construction, Fig. 5, a horn carrier 17 having an offset bore 18 is mounted for rotation on the horn-post 16. The bore is split vertically and can be contracted by bolts 32 to afford a running fit for an eccentric split-sleeve 20, which receives the shank 21 of the horn. The bore 18 is formed with a horizontal slot, extending from the inner to the outer face of the bore, in which is seated a collar 23 which may be tightened on the sleeve 20 by a bolt 33. The collar 23 has two diametrically-opposite ears 24, 25 of which the ear 25 is seated against a face 26 on the carrier when the horn is in operative position. The ear 24 is bevelled off on its underside, and is acted upon by a spring-pressed latchbolt 27 to hold the horn in operative position un less the bolt 27 is retracted by means of the head 28. If it is desired to align the horn tip the bolt 33 only is slackened, when the tip may be adjusted owing to the rotation of the horn and the eccentricity of the sleeve 20. To move the horn into inoperative position, the bolt 27 only is retracted, freeing the collar 23 and permitting the latter, the horn, and the sleeve 20 to rotate as a unit. When returned to position, the bolt 27 snaps back, locking the collar 23. The carrier 17 can be locked to the post 16 by a spring- pressed bolt 29. Specifications 1494/93, 115,243 and 193,976 are referred to.