baber/WOPTO huggingface dataset:
Patent GB-1158859-A (GB)
Title: Improvements in or relating to Laminated Magnetic Cores and Methods of Constructing Such Cores
IPC: H01F7/08
Filed: 1968-05-06
Abstract: 1,158,859. Laminated cores. LA TELEMECANIQUE ELECTRIQUE. 6 May, 1968 [26 May, 1967], No. 21282/68. Heading H1P. In a laminated magnetic core assembly comprising two relatively movable parts having co-operating pole faces, the laminations are coated with oil and one of the pole faces is trued while the other comprises the raw edges of the laminations. The raw edges provide grooves which prevent the oil from sticking the pole faces together when they touch. The laminations may be U- or E-shaped and the fixed core may include an anti-remanence air-gap. The armature laminations are stampedout, coated with oil, stacked, secured, e.g. by means of rivets, and trued by grinding. The fixed core laminations are stamped-out, coated with oil, stacked in a jig in the order in which they were produced, levelled by applying a force parallel to the plane of the laminations against the pole faces, and secured.
Patent GB-711451-A (GB)
Title: Improvements in or relating to film reels
IPC: G03B21/32
Filed: 1952-08-25
Abstract: 711,451. Kinematograph apparatus. KODAK, Ltd. Aug. 25, 1952 [May 3, 1952], No. 21307/52. Class 97(1) [Also in Group IX] The flanges of a film reel are connected by a hub comprising a plurality of substantially slat-like members, the outer surfaces of which are of arcuate form in cross-section and lie on the periphery of a cylinder generated about the axis of the reel, and each of which is bisected by a common plane containing the axis of the reel. In the form shown the flanges have, respectively, a polygonal hole 13 and a circular hole for securing to the spindle. Slats 5, 6, 7, 8 with arcuate surfaces 9, 10, 11, 12 form the hub. Pads 15 are formed between the outer pairs of slats by thickening the flange, the pads being chamfered at 16 to the flange surface. The two pads between any one pair of slats are spaced by slightly less than the width of the film which can be inserted if inclined, and is thereby wedged. In another form the slat faces corresponding to the flat faces in the form shown are slightly convex. Another form has spoked flanges.
Patent GB-1450294-A (GB)
Title: Reciprocation piston engine
IPC: F01B1/06
Filed: 1974-05-14
Abstract: 1450294 Reciprocating piston engines; reciprocating motors and pumps RUAPEHU PTY Ltd 14 May 1974 21353/74 Headings F1A F1B and F1M An I.C. engine comprises a cylindrical housing 11 in which are disposed a number of radial cylinders 12 in each of which is mounted a reciprocating piston 19, a fuel/air mixture inlet 33 and an exhaust gas outlet 34 being provided for each cylinder. The reciprocating motion of the pistons is transmitted to the drive-shaft 13 by means of a triangular-shaped member 14 secured to the driveshaft, each apex of the member 14 having rotatably mounted thereon a three-lobed or clover-shaped member 15. The lower side of each piston is formed with a concave recess 29 which engages a lobe of the member 15 whereby the member 15  and so the member 14 is driven. The lower side of each piston is also formed with a convex surface 30 which engages the surface 40 of the member 14 as the latter rotates. The member 14 is formed in two parts, the members 15 being rotatably mounted on the two parts of the member 14 by means of pins 17. The drive arrangement also may be used for hydraulic motors, compressors, pumps, vacuum pumps and steam engines.
Patent GB-674087-A (GB)
Title: Improvements in or relating to the manufacture of phosphorus compounds
IPC: C07F9/12
Filed: 1949-08-17
Abstract: A process for the manufacture of orthophosphoric acid esters comprises treating a metallo-derivative of an organic compound of the kind R.OH, wherein R is a substituted or unsubstituted alkyl, cycloalkyl or aryl group and wherein the hydroxyl group is attached to a carbon atom with tetrabenzyl pyrophosphate.  If desired, the benzyl groups of the dibenzyl orthophosphate so formed may be removed by catalytic hydrogenation.  The substituent may be a fused ring or fused rings.  Alkali metal, e.g. sodio derivatives, are the preferred metallo-derivatives.  In examples: (1) stillboestrol is reacted with sodium ethoxide to give the sodium derivative and the latter is reacted with tetrabenzyl pyrophosphate to give stilboestrol diphosphate tetrabenzyl ester. Similarly prepared are the dibenzyl orthophosphates of (2) hexoestrol, (3) oestrone, (4) 3 : 41-dihydroxychalkone, (5) ethyl alcohol, (6) dl-a -tocopherol, (7) 2-methylnaphthohydroquinone, (8) d-galactose, (9) 2,3-isopropylidene methyl-d-ribofuranoside, (10) 2,3,4-diisopropylidene-d-sorbose.  By hydrogenation using Adams palladium oxide and palladium charcoal catalysts, some of the products are converted to (3) oestrone-3-phosphate, (5) ethyl phosphate and its barium salt, (6) dl-a -tocopherol phosphate and its di-ammonium salt, (7) 2-methylnaphthohydroquinone diphosphate and its di-barium salt, (8) d-galactose-6-phosphate and its barium salt, (10) d-sorbose-1-phosphate and its barium salt.  The product of (9) is converted to the barium salt of d-ribose-5-phosphate in the manner described in J.C.S. (1949), 2486.
Patent GB-479499-A (GB)
Title: Improvements relating to vehicle brakes
IPC: F16D65/14
Filed: 1936-08-04
Abstract: 479,499. Automatic adjustment of shoe brakes. ROWLAND, T. C. E., and PARKER, H. Aug. 4, 1936, No. 21400. [Class 103 (i)] Automatic adjusting-gear for an internal shoe brake comprises abutments 17 adapted to be advanced by screw and nut mechanism operated by toothed gearing such as worm and a ratchet in a casing 25 which is mounted on a brake shoe 12 and the driving member 31 of which is coupled to a moving part of the brake other than the drum, in the example shown, the cam 34. The worm of the worm gear operating the screw and nut mechanism carries a ratchet wheel at its end enclosed in the casing 25 which carries a pawl engaging the ratchet wheel. The casing is rotatablv mounted on the worm shaft and is connected by a link 31 to an arm 33 fixed to the brake cam which engages the abutments 17. Two further arrangements of the arm 33 and link 31 are shown. Specifications 446,339 and 456,238 are referred to.
Patent GB-462440-A (GB)
Title: Improvements in or relating to methods of rendering glass resistant to metal-vapours
IPC: C03C17/27
Filed: 1936-08-04
Abstract: 462,440. Treating glass surfaces. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Aug. 4,1936, No. 21450. Convention date, Aug. 6, 1935. [Class 56] [Also in Group XL] A method of rendering glass resistant to attack by metal vapour consists in coating it with a film of alkali oxide, alkaline earth oxide, or alumina. Preferably, the coating is composed of the oxide of the metal from which the glass is to be protected. The film may be formed by bringing the glass into contact with the vapour of the metal, and then heating the glass until a diffusion of the metal into, and absorption by, the surface of glass takes place. Finally, the deposited metal is oxidized, e.g. by supplying an atmosphere containing oxygen to the glass. A glass consisting of 60 per cent of silica, 20 per cent of sodium oxide, 10 per cent of calcium oxide, and 10 per cent of boron trioxide may be rendered suitable for the envelope of a sodium metal vapour lamp. Similarly, a glass consisting of 57 per cent of silica, 20 per cent of calcium oxide, and 23 per cent of alumina may be rendered suitable for use as a magnesium vapour discharge tube. Barium and beryllium oxides can be used also for the coating. Specification 455,945 is referred to.
Patent GB-170376-A (GB)
Title: Improvements in gas burners
IPC: F23D14/48
Filed: 1920-07-17
Abstract: 170,376. Farkinson Stove Co., Ltd., Gibb, D. M., and Hickinbottom, F. July 17, 1920. Atmospheric gas burners. - A conical or dome-like shaped baffle 7 or breaking-up member Fig. 1, having radial ribs 9 on its upper surface is arranged so as to fit closely a corresponding cavity below the outlet nozzle of a gas burner. Each baffle fits loosely. upon a conical seating 10 carried by a longitudinally disposed bar 11 bolted to the upper detachable half 3 of the mixing-chamber or by separate transversely-arranged bars fixed to the inner wall of the mixing-chamber. In a modification in which the mixing-chamber is formed in one piece, its upper face is constructed with a series of circular openings 13 formed with annular seatings which serve to support the baffles 7 and jets 6.
Patent GB-611220-A (GB)
Title: Improvements in or relating to optical image reversing units for photographic purposes
IPC: G02B17/02
Filed: 1945-08-23
Abstract: 611,220. Optical image - reversing unit. GENERAL PRINTING INK CORPORATION. Aug. 23, 1945, No. 21560. Convention date, July 15, 1944. [Class 97 (i)] An optical image reverser for photography comprises two axially spaced objective lens elements, the axes of which are offset, and three prisms, the hypotenuses of which act as reflectors, disposed in the light path between said lens elements, whereby a reversed image of an object in the field of view is formed. As shown in Fig. 3, a plate 1 which may be detachably secured to the lens board of a camera, has secured thereto a housing 3 with an aperture at 3b registering with an aperture 1b in the plate so that a holder 6 for one lens element may be inserted therein. A holder 8 for the other lens element is accommodated in an aperture 5b in a plate 5, also secured to the housing 3. Secured at 10 o the housing is a casing 11 for right-angled prisms p1, p2, p3, Figs. 4 and 6, which serve to shift the axis L1 of the incident beam to the axis L2 and also form the required reversed image, The incident light is normally incident on prism p1 and is reflected at the hypotenuse thereof into the prism p2 from which it is separated by a member 18, apertured at both ends to form stop openings and slidable in a passage 17 of the housing 3 which is aligned with a passage 16 in the part 11b of casing 11. After reflection at the hypotenuse of prism p2, the light falls on the prism p3 and is reflected by the hypotenuse face thereof. The three hypotenuses may be silvered, while the faces of prism p2 which are respectively adjacent the emergent and incident faces of prisms p1 and p3 may be opaque as shown in Fig. 6 except for a small section which allows the passage of the light. Between the casing 11 and the lens holders 6 and 8 are secured opaque sheets 13, 14 respectively, which are apertured to transmit the light.
Patent GB-812552-A (GB)
Title: Improvements relating to clothes washing machines
IPC: D06F17/02
Filed: 1955-07-27
Abstract: 812,552. Washing-machines. GENERAL ELECTRIC CO. July 27, 1955 [July 28, 1954], No. 21726/55. Class 138 (2). A washing-machine comprises a casing 25 extending upwardly from the bottom 16 of a tube 15 adapted to contain water and clothes to be washed, the casing 25 being provided with a water inlet opening 28 in its upper portion and first and second series of water discharge ports 32, 33 in its lower portion, these ports being disposed in substantially annular arrays with the first series arranged to direct water in a generally horizontal direction across the bottom 16 of the tube and the second series above the first and arranged to direct water in a generally horizontal direction above the bottom wall 16, means for drawing water into the casing through the inlet opening 28 and for discharging it from the casing progressively in streams through the discharge ports with a substantial angle between the first and second streams, and means for preventing the clothes suspended in the water thus circulated in the tub from being drawn through the inlet opening into the casing. The ports 32 are defined by curved diffuser blades 30 and the ports 33 by curved diffuser blades 31. A diffuser ring 29 arranged between the ports has a curved lower surface to direct the first stream of water downwardly and a curved upper surface to direct the second stream of water upwardly. The casing 25 houses a rotary impeller 36 mounted on a shaft 37 and comprising curved blades 41 (Fig. 4), a substantially bell-shaped shell 40, and a disc 39 arranged adjacent to the bottom wall 16 of the tub and disposed at an angle with respect thereto. The shell 40 and disc 39 define an annular water discharge opening 45 therebetween and the inclination of the plate 39 ensures that oppositely disposed portions of the plate cooperate with a first and second series of discharge ports respectively. Water is thus discharged from the casing 25 in a series of rotating currents as indicated by the arrows 34, 35, 46 and 47. A perforated clothes guard 50 prevents clothes reaching the inlet opening 28, and a structure 48 including three equi-angularly spaced-apart blades 49 supported on the top of the easing 25 minimizes swirling of the water entering the casing. Fig. 5 (not shown) illustrates a modified form of clothes guard of corrugated construction providing a series of clothes rubbing ribs with intervening troughs in which the perforations are formed. The tub 15 is provided with a series of water discharge openings and a clothes guard ring 18 and may be rotated at high speed to spin-dry the clothes.
Patent GB-154720-A (GB)
Title: Improvements in electric frequency multipliers
IPC: H03B19/00
Filed: 1919-09-05
Abstract: 154,720. Trichard, P. Sept. 5, 1919. Thermionic relays. - In order to multiply the frequency of an alternating current by the value n, 2n thermionic valves are used, the grids of which are excited by 2n potentials obtained by adding constant potentials furnished by accumulators to 2n alternating potentials forming two n-phase systems, the valves being assembled in parallel in two groups fed by two equal batteries of accumulators a and giving passage to a current of n times the fundamental frequency through a winding R connected between the two groups. In the case where n=3, two identical three-phase systems are obtained in independent circuits by the use of parallel wires in the winding for eachphase. One system is inverted and each of the six potentials thus obtained is placed in series with a constant potential in order to obtain six negative potentials falling successively to zero with a phase difference of one-sixth of a period. These potentials are applied between the grids and filaments of the valves 1 - - 6, which are arranged in two parallel groups oppositely connected to the winding R. The valves open in succession when the potentials applied to the grids. fall to zero, giving rise to a current of three times the fundamental frequency through the winding R. In the case where n=1 the device is stated to have a relay effect, without multiplying the frequency.
Patent GB-614735-A (GB)
Title: Improvements in or relating to plumb bobs
IPC: G01C15/10
Filed: 1946-07-23
Abstract: 614,735. Plumb-bobs. SUVERKROP, L. July 23, 1946, No. 21925. Convention date, July 30, 1945. [Class 97 (ii)] A plumb-bob comprises a body 501 having a hardened point 502 and providing a spindle for a reel 503 on which the string is wound, and a support for a hook member 506 by which the bob is suspended. Rotation of the reel is controlled by a resilient friction washer 504, the pressure on which may be adjusted by screwing the hook member. Rotation of the washer is prevented by a key 505. The screwed shank of the hook member is slotted at 508 to ensure a snug fit in the body 501. The hook member has two slots for the string, one, 510, vertical and the other, 511, at an angle. A central hole 516 provides an alternative attachment for the string. The height of the bob may be accurately set by rotation of the reel manually by means of the knurled top flange. A countersunk hole 507 is provided in the top flange for holding one end of the string to the reel. In a modification a friction shoe in the top flange of the reel presses on the spindle, the pressure being controlled by a screw. In another form, the shank of the hook member is extended to provide the spindle for the reel and is coned into the body.
Patent GB-449592-A (GB)
Title: Improvements in suspensions for lubrication and other purposes
IPC: C10M173/02
Filed: 1935-08-02
Abstract: A freely flowing gelatinous suspension comprises a liquid pretroleum &c. hydrocarbon in which a predetermined amount of carnauba wax, gelled with the same kind of oil, is dispersed to form a mobile discontinuous mass.  The suspension forms a vehicle for stably suspending lubricating &c. particles, e.g. graphite, talc, sulphur, lead.  The carnauba wax is dissolved by heating and a gel is formed by cooling, with or without agitation, after which the gel is broken into small particles by agitation, e.g. by stirring or by passing the mixture through an orifice.  A stable suspension is obtained by using sufficient wax to avoid formation of serum layer, on standing, or by decanting such serum layer.  A plasticizer in the nature of a wax solvent may be added.  In an example carnauba wax is dissolved in 1\ba1/2\be times its weight of petroleum oil by heat and the wax content is reduced to 9 per cent by adding further oil and stirring, after which 5 per cent flowers of sulphur is added and the mixture freed through an orifice to yield a lubricant intended to be diluted with further oil for use.  Other examples are given involving smaller amounts of wax.  Specification 428,463 is referred to.
Patent GB-315795-A (GB)
Title: Television and telecinematography process and apparatus
IPC: H04N7/06
Filed: 1929-07-17
Abstract: 315,795. Levy, L. July 18, 1928. [Convention date]. Television.-A process for simultaneously transmitting all the points of an object line consists in illuminating each point with different luminous, thermal, &c. frequencies which are converted into radio-electric frequencies and at the receiver the radio-electric frequencis are transformed into aligned luminous frequencies. Light from an arc 1, Fig. 1, passes through a Kerr cell, or other device such as two gratings, producing on the object aperture 6 two superimposed spectra displaced relatively to each other so that each point of the line disclosed by the slit 8 in the scanning disc 7 is illuminated by light of two different frequencies, e.g. N, N<1>. The beat frequency N" = N - N<1> thus varies along the line and is of the order of radio frequencies if N is near N<1>. The beat frequencies corresponding to the several points in the picture line are modulated in amplitude by the film 9 and are transformed by the light-sensitive cell 12 into electric frequencies, which are transmitted to the receiver. A polarizer 23 may be placed between the lens 11 and the cell 12. The received frequencies, amplified at 14, Fig. 2, are applied to a Kerr cell 15 modulating monochromatic light of frequency N<111> from a source 16. Each frequency N<11> applied to the Kerr cell produces two new frequencies N<111> + N<11> and N<111>- N<11>, so that two new spectra are obtained. One spectrum is removed, e.g. by reflection, and the other spectrum is aligned by a prism to fall on the aperture 20 scanned by the radial slots 8 in the disc 24. Preferably the Kerr cell 15 is prismatic to avoid the use of an auxiliary dispersing prism.
Patent GB-500563-A (GB)
Title: Universal button sewing machine
IPC: D05B29/06
Filed: 1937-08-11
Abstract: 500,563. Sewing - machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.) Aug. 11, 1937, No. 22067. [Class 112] A button-sewing machine is provided with a number of work-plates, each having a different form of work-supporting end, and a number of button clamps, so that by using a suitable work-plate and its co-operating button clamp, either flat or shank buttons of various types may be stitched on one machine. The machine 3 is of the type having a reciprocating needle 8 vibrated laterally by cam gear 24 on a shaft 25 driven from the main shaft 5 through worm and worm-wheel gear. A rotating chain-stitch looper co-operates with the needle. The machine shown in Fig. 1 is described in Specification 476,764 and is applied for the stitching of shank buttons. Fig. 2 is the same machine fitted with a flat-button clamp and work support B. Either bar A or B may be attached to the clamp-lifting chain C by means of a thumb-screw 100. The button clamp is shifted lengthwise when four-hole buttons are being stitched, by means of a slide 28 mounted in blocks 28x on the bed 1. In Fig. 2, ears 28c, at the ends of a transverse portion 28a of the slide, carry a pin 1) upon which the bar B<2> is pivoted. A rock-shaft 30, driven by an arm 32 and cam gear 33, 34, acts upon one end of a horizontally slotted arm 29. This arm is swung between two positions lengthwise of the bed 1. During the stitching of shank buttons and two-hole buttons, this swinging of the arm is an idle movement, but during the stitching of four-hole buttons it shifts the clamp lengthwise to transfer the stitching from one pair of holes to the other. A stud 36 is slidingly mounted in a slot 28b in the work-plate slide, and has a head 36a fitted in the slot 29a in the arm 29. The stud may be concentric with the shaft 30, in which case no movement is transmitted to the slide 28, but when the stud is moved along slots 28b and 29a motion will be transmitted from 29 to 28. The bar B<2> may be disconnected from the ears 28c and pivotally connected to ears 38 on the standard 2, see Fig. 1. Spacing plates may be used in conjunction with the work-plates to hold buttons at some distance from the work. Each of the work-plates is provided with two studs underneath, which engage a slot in a plate 41 secured to the forward end of the base 28. A spring clamp 46, secured by screws 45, is lifted to allow the insertion of a work-plate which is bevelled at one end. Operations for stitching flat or shank buttons, with or without stay buttons, by through-and-through or blind stitching, are described.
Patent GB-625551-A (GB)
Title: Cutting machine
IPC: B24B27/06
Filed: 1947-08-08
Abstract: 625,551. Severing by grinding; circular-saws. DE WALT, Inc. Aug. 8,1947, No. 22067. Convention date, Aug. 11, 1942. [Classes 60 and 145(ii)] A machine for cutting pieces from stock such as rod, tube &c., comprises a housing 1, with a hinged hollow cover 2, within which housing is situated a swing- ing frame 5 carrying the cutter 7, which may be a saw or an abrasive disc, the frame also carrying an electric motor 8 driving the cutter through V-belts 9. The frame 5 is connected by links 55 to a pivoted arm 49 which is moved by a handle 51 to bring the cutter up to and through the work; the cutter moves back, when the handle is released, due to the weight of the motor 8. Adjustable rubber tipped stops 62, 64 limit the movement of the frame. The work is held during cutting by fixed lower jaws 30, 31 separated by a slot 32, and a movable upper member 34 having jaws 35, 36 separated by a slot 37; the member 34 is operated by a rod 40 connected by a tension link 42 to a treadle 45. The cover 2 is provided with aligned lateral openings for insertion of the work, which is also supported by a V-block 14 and is positioned, to determine the length cut off, by an adjustable end stop 22<SP>1</SP>. When it is desired to remove the cutter 7 from its shaft a plunger 70, normally pressed upwards by a spring, is depressed to engage a flat on, or hollow in, the cutter shaft to hold it against rotation while the securing nut 69 is unscrewed. In a modification, the work clamp is operated pneumatically, the control valve being- actuated by operation of the handle for feeding the cutter to the work.