baber/WOPTO huggingface dataset:
Patent GB-194653-A (GB)
Title: Improvements relating to uni-directional electric current carrying devices
IPC: H01L21/16
Filed: 1922-07-04
Abstract: 194,653. Westinghouse Brake & Saxby Signal Co., Ltd., (Assignees of Grondchl, L. O., and Nicholas, F. H.). March 7, 1922, [Convention date]. Converting alternating and direct currents.-A uni-directional conducting device for use in rectifying alternating currents, comprises a metal electrode of extended contact area having a layer of oxide or other compound of the metal formed thereon, with means for effecting intimate -electrical contact with this laver. Such a device offers a high resistance to the passage of current from the electrode to the compound, but conducts readily in the opposite direction. In one form, Fig. 1, the device comprises a pair of copper plates 10, 12 with a layer of cuprous oxide formed on the plate 10 and a layer of lead foil 11 between the oxide and the plate 12, the elements being pressed firmly together. The layer of lead foil may comprise strips of foil instead of a continuous layer, in order to leave ventilating channels through the device. Other metals may be used for the plate 12, and the layer of lead may be replaced by a metal film formed on the surface of the oxide by electroplating or other means. For heavy currents, a number of devices may be arranged in series, spacing members of conducting material being provided to allow for ventilation. In a modification, Fig. 4, the cuprous oxide 10a is deposited on a copper wire or rod 10 and is surrounded by several layers of lead foil 11, around which is wound a coil 12a of copper and which forms the outer electrode. Another modification for use in charging a storage battery from a source of alternating current, in which each half of the alternating current wave is utilized, is shown in Fig. 7. In this arrangement, a series of units, each comprising a copper washer 10 with an oxidized surface 10a, a lead washer 11, and an iron or aluminium washer 12b, is mounted on a bolt 20, the units being grouped into sets C, D, E separated by terminal plates 22, 22a which are connected to the battery B to be charged. The units in the sets D, E are arranged to conduct in the opposite direction to the units in the set C, as shown by the arrows, and the outer units of the sets D, E are connected to the bolt 20 and to one of the alternating-current terminals, the other terminal being connected to the middle point of the set C.
Patent GB-1475267-A (GB)
Title: Process for the purification of alkali metal alkylamides
IPC: B01J31/40
Filed: 1975-05-02
Abstract: Alkali metal alkylamides, for example potassium methylamide or mixtures of lithium methylamide and potassium methylamide, which contain impurities, are purified by first reacting the contaminated alkali metal alkylamides, which are in the solution of an alkylamine, with ammonia to give the corresponding alkali metal amides, which precipitate while the impurities remain in the solution. This solution is distilled, and the distillate, which contains alkylamine and a small amount of ammonia, is brought into contact with the precipitated alkali metal amides, the alkali metal amides reacting with the alkylamine to give pure alkali metal alkyl amides. The resulting solution of pure alkali metal alkylamides in methylamine can be used as catalyst for the enrichment of deuterium.
Patent GB-568484-A (GB)
Title: Improvements relating to oil retaining and dirt excluding seals for use in machinery
IPC: B21B31/07
Filed: 1943-11-06
Abstract: 568,484. Oil seals. SUPER OIL SEALS & GASKETS, Ltd., and MOXON, L. A. Nov. 6, 1943, No. 18465. [Class 122 (v)] An oil seal for rolling mill bearings, comprises a rubber or packing ring c, having a flanged portion c<2> loaded by a spring d, secured in a metal shell a by a massive ring f and the turned over edge of the shell. The end b of the shell is also bent inwardly to support the flat wall of the packing. A projection f<1> is provided on the ring f to protect the packing flange.
Patent GB-115775-A (GB)
Title: Improvements in and relating to Speed Controlling Mechanism for Phonographs and like Machines.
Filed: 1917-12-13
Abstract: 115,775. Marks, E. C. R., (De Camp & Sloan, Inc.). Dec. 13, 1917. Actuated or applied by speed regulators.-The speed-regulating brake lever of a phonograph or like machine is adjusted by means of a rotary head carrying a toothed wheel gearing with a rotary drum having indicating numerals on its rim and a cam slot on one face whereby the brake lever is moved towards or from a rotary disk on the governor shaft. The brake lever 12 is guided vertically in a slot 30 in the frame 22 and is actuated, to adjust the brake block, by a spiral slot 16 in one face of a rotary drum 18, the opposite face of which has a ring of perforations 19 engaged by the teeth of a wheel 15 attached to the head 14. The frame 22 is bifurcated at each side of the drum and is secured to a plate 21 by screws passing through the flat connecting portions 26, 27. The drum 18 is mounted on a spindle 28 and has indicating numerals around its rim which are visible through an aperture in the plate 21. The parts of the drum and frame are stamped or cut from sheet metal.
Patent GB-430547-A (GB)
Title: Improvements in and relating to welding machines
IPC: A41F1/00
Filed: 1934-06-22
Abstract: 430,547. Electric welding. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. June 22, 1934, No. 18525. Convention date, June 22, 1933. [Class 83 (iv)] In apparatus which may be used to convert a spot-welding machine into one for line welding, the work 58, 59 is held between fixed electrode 60 and an arcuate electrode 16 adjustably mounted on a shaft 17 adapted to be rotated by the engagement of a rack bar 25 with a gear 18 thereon whereupon a toothed sector 19 on the shaft 17 engages a fixed rack 23 to displace the shaft in a direction parallel to the workpiece and with it a slide 15 which supports it in a carrier 14. The carrier 14 is raised or lowered to disengage or to engage the electrode 16 with the workpiece by a resilient plunger 10 actuated by a cam 45 on a driving shaft 44. As the carrier is lowered, a second cam 43 on the shaft 44 rocks a lever 31, having an adjustable fulcrum 32 coupled to the rack bar 25 to operate the electrode which is returned to its initial position when the carrier has been raised to lift it from the workpiece.
Patent GB-185380-A (GB)
Abstract: 185,380. Welte &. S÷hne Ges., M. Aug. 29, [Convention date]. Drawings to Specification. Controlling-levers; tune sheets.-In a control device for piano-players and the like there are two expression lines and control levers, one for the treble and one for the bass, and the zone or course of the expression line is bounded and subdivided by parallel lines. The control levers are disposed immediately in front of the expression lines, which are arranged so that the desired effect is produced by adjusting the ends of the levers so as to be always exactly opposite the expression lines. The two zones may be juxtaposed so that the middle line bounds both, and this line may be the fortissimo line for both levers; it may, moreover, coincide with the division between the bass and treble portions of the record. The expression-lines have a zig-zag formation deviating in sharp points, so that they can be easily followed by the performer.
Patent GB-242339-A (GB)
Title: Improved means of mounting wheels or pulleys on axles or shafts
IPC: F16D1/091
Filed: 1924-08-05
Abstract: 242,339. Clare, C. H. Aug. 5, 1924. Hubs.-Vehicle wheels are secured upon their axles by means of two screwed portions c, d of the axle a of opposite hand and of different diameters connected by a coned portion b. The wheel hub e is screwed upon the larger screw c until its female cone g beds upon the axle cone b. The parts are firmly held in place by a nut h with or without a washer i.
Patent GB-672514-A (GB)
Title: Improvements in or relating to the manufacture of wire-shaped component members provided with one or more strips of tape-material
IPC: H01J9/06
Filed: 1950-07-26
Abstract: 672,514. Making electric components. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 26, 1950 [July 29, 1949], No. 18666/50. Class 83 (ii). In making a wire element with a strip of metal attached, such as used for forming into cathodes for electron discharge tubes, lamp filaments and resistances, a wire of the desired length is periodically cut from a reel, a strip being secured to it either before or after the cutting and the strip is then used to convey the cut-off piece of wire along the machine to a point of discharge before the strip itself is cut to length. The end of a metal tape 5 is bent over by a roll 7 and former 8 and the reel 4 is then moved bodily so that the strip hooks around a wire from a reel 1 and is firmly pressed about the wire by dies 9a and 9b. Cutters 10 sever the required length of wire which is then carried by the strip to a position where the latter is sheared by cutters 12, when the entire element falls on to a conveyer belt 11.
Patent GB-1376859-A (GB)
Title: Automatic wear compensating mechanism
IPC: B65H3/52
Filed: 1973-04-18
Abstract: 1376859 Feeding sheets RCA CORPORATION 18 April 1973 [20 April 1972] 18750/73 Heading B8R Double feed is prevented by a reversely rotating roller 15 having a urethane surface 16 which is maintained at a fixed distance from a feed drum 18 greater than the thickness of one sheet but less than that of two. The roller is mounted in a bracket 27 mounted for limited vertical movement on a fixed base 29, and the bracket and roller are urged towards the drum by springs or by the tension of an O-ring belt 19. Pivoted to the bracket at 26 is a rigid assembly comprising arms 25A, 25B respectively carrying a wear-sensing roller 23 engaging the surface 16 and a roller 21 engaging the drum 21. The roller 21 thus limits the movement of the bracket and roller 15 towards the drum, and as the diameter of the roller 15 decreases due to wear, the roller 23 moves inwards to allow the roller 21 to use and permit movement of the roller 15 towards the drum to maintain its distance therefrom constant.
Patent GB-1149013-A (GB)
Title: Method and installation for forming a stream of scattered material from wood chips or similar material
Inventor: GLASSBER SIEGFRIED
IPC: B27N3/14
Filed: 1966-04-29
Abstract: 1,149,013. Timber substitutes. CARL SCHENCK MASCHINENFABRIK G.m.b.H. 29 April, 1966, No. 18846/66. Heading C3N. [Also in Divisions D1 and G3] Boards are formed by pressing a web or blank of wood chips, flax chaff, or shredded bagasse, which may be glued, the web or blank being formed as follows: A stream of loose material is formed by (a) forming a weight controlled flow of the material; (b) supplying the flow to one or more spreading stations 4, 5 which (c) form a web or blank of scattered material on a conveyer; (d) detecting errors of volume in said flow; (e) supplying corresponding electrical regulating pulses to control steps (a) (b) and (c). Apparatus may comprise continuous-belt weighing-device 2 for a step (a); distribution-station 3 which can alter the ratio of the volume flowing in step (b) to 4 and 5; levelling-mechanisms 4a, 5a which remove excess scattered material and accordingly perform steps (d) and (e). Various modifications of 4a and 5a may be seen in Figs. 2-4 (not shown), 4a and 5a may be adjustable in height in accordance with quality, density, or humidity of the loose material. Material removed may be recycled to an earlier part of the stream.
Patent GB-1263808-A (GB)
Title: Improvements in or relating to secateurs
Inventor: WILLIAMS ROGER GEOFFREY
IPC: A01G3/02
Filed: 1969-04-14
Abstract: 1,263,808. Secateurs. SPEARWELL TOOLS Ltd. 14 July, 1970 [14 April, 1969], No. 18881/69. Heading B4B. A secateur comprises a cutting blade 18, an anvil 16 and a pair of handles 10, 12 for effecting relative movement between the blade and anvil, the handle 10 being in the form of an outer casing having a U-shaped cross-section, the handle 12 being pivotally connected to the casing and having an inner edge 28 which lies wholly within the outer casing at all times. The anvil 12 is secured to the outer casing 10 while the blade 18 is pivoted thereto at 20 and connected, via a link 24, to the handle 12. The handle 12 is urged outwardly about a pivot 14 by means of a spring 34, the outward movement being limited by means of the link 24 abutting a surface 26 formed on the anvil. A latch 30 is pivotally mounted on the handle 12 and, in co-operation with an extension 34a of the spring, acts as a buffer during use of the secateur. The handles may be locked together as shown in Fig. 5 by maintaining pressure on the handles until the latch engages behind the extension 34a. The handles may be made from metal or synthetic plastics material.
Patent GB-259690-A (GB)
Title: Improvements in or relating to processes for the protection of cotton and other textile or like materials from mildew
IPC: A61D15/00
Filed: 1925-07-24
Abstract: 259,690. British Dyestuffs Corporation, Ltd., Renshaw, A., and Fairbrother, T. H. July 24, 1925. Antiseptic and like paper; pulp, adding special substances to.-Paper is proofed against mildew by applying a solution of an alkaline salt of a halogenated phenol containing more than two halogen atoms to the molecule, such as tri-chlorsodium phenate or tri-brom-sodium phenate, to the paper in the course of manufacture. The compound may be added to the pulp before filtration, or to the size used.
Patent GB-585841-A (GB)
Title: Improvements in underwear for men and youths
IPC: A41B9/02
Filed: 1944-10-04
Abstract: 585,841. Pants and like undergarments. WILLIAMSON, R. P. Oct. 4, 1944, No. 18960. [Class 141] Pants or the like provided with an integral suspensory belt comprise a waistband 3, two leg-forming sections 1, and a belt section 2 which connects the leg sections and extends from the waistband at the front to the waistband at the back. The belt section tapers towards both ends and comprises a front portion 2a, a wider, pouched portion 2b, and a rear portion 2c connected to the portion 2b by a seam 5. A fly opening is provided between the belt portions 2a, 2b or, as shown, one leg portion is cut away as at 4 and the belt portion 2a is unattached as at 6, 7. The edges of the belt section are seamed or taped to prevent longitudinal stretch, and its portion 2b is,of double thickness.
Patent GB-1223462-A (GB)
Title: Improvements in or relating to self-locking threaded fastening devices
IPC: F16B33/06
Filed: 1968-04-23
Abstract: 1,223,462. Making screws. U.S.M. CORP. 23 April, 1968, No. 19070/68. Headings B3A and B3H. [Also in Divisions B5 and F2] A self locking screw 12 has a cavity 16 formed in the thread and a lip 22 is formed in the cavity wall, the lip locating a resilient locking pellet 14 in the cavity. The centre of the cavity coincides with a root of the thread and the cavity is formed by a punch 20. A further punch 30 having a concave surface 26 is then applied to the threads to form a lip 22 at each portion of the cavity wall which coincides with the thread crests on opposite sides of the cavity. The deformation of the threads adjacent the cavity is corrected by a thread re-forming punch and the pellet of nylon is then compressed into the cavity by a punch. The pellet is finally formed with threads by a punch. In a modification, the centre of the cavity coincides with a crest of the screw thread and the lip forming punch has a convex surface.
Patent GB-611701-A (GB)
Title: Improvements in or relating to push-pull mixing circuits for ultra short waves
IPC: H03D7/14
Filed: 1946-06-26
Abstract: 611,701. Valve circuits for radio reception. PHILIPS LAMPS, Ltd. June 26, 1946, No. 19072. Convention date, May 30, 1940. [Class 40 (v)] A push-pull mixing circuit for ultra-short waves comprises a pair of diode-triodes, each having a common cathode, the triodes constituting a push-pull generator and the input oscillation being applied to the diode anodes. An impedance joining the cathodes is tuned to the local oscillator frequency and the output intermediate frequency is derived from a circuit connected between the mid-points of the impedances joining the cathodes and the diode anodes. The impedance joining the cathodes may be a Lecher wire system 20, 21 tuned by a bridge 22 earthed through the intermediate frequency tuned circuit 25 and the resistance condenser combination 26. The grids of the oscillator, as shown, are connected to a further Lecher wire system 12, 13.
Patent GB-680737-A (GB)
Title: Improvements relating to nesting boxes for fowls
Inventor: WATSON JOHN HERBERT
IPC: A01K31/17
Filed: 1950-08-01
Abstract: 680,737. Poultry houses. MATTERSON, HUXLEY & WATSON, Ltd July 17, 1951. [Aug. 1, 1950], No. 19162/50, Class 5 (ii) Nesting boxes for poultry houses are made of wire mesh bent to form a base and front and rear walls, the front 12 being higher than the rear 11. Wire-mesh ends and reinforcing rods 14, 18 may also be welded on. The upper rod 22 of the nest may be lifted and hooked to the house walls 23 to place the nest out of usable position. Such nests may be supported within wire frames suspended from the walls of the house. Specifications 680,735 and 680,736 are referred to.
Patent GB-599213-A (GB)
Title: Improved shuttering for casting concrete cavity walls, with imitation stonework in situ
IPC: E04G15/06
Filed: 1945-07-30
Abstract: 599,213. Casting cavity walls in situ. WILLIAMS, C. H. July 30, 1945, No. 19384. [Class 20(ii)] Shuttering for cavity walls comprises interior and exterior shutters made of metal sheet reinforced with angle-irons 13, and core boxes 7 which are reducible both in width and thickness. The shutters are connected to each other and to screed boards 11 by short angle-irons 14 having studs at each end, and by clips 6 which have lugs engaging alternately over and under the adjacent angle-irons. Hinged angle-irons and diagonals 16 are used at the corners. The shutters are also held in position by bridge pieces 17 placed across the top of the lift. The core boxes 7 are made of two metal sheets each cut diagonally and reinforced along the edges (including diagonals) by angle-iron. The parts are joined by two pairs of links 21 at either side of the box and by stud and slot connections 22 between adjacent diagonal angle irons. The boxes rest on recessed wall ties 9 positioned between them. The exterior shutters are impressed to produce decoration on facing material which is held between the shutters and slide sheets 3, Fig. 3. The slide sheets are connected to the shutters by pivoted hooks so that they may be withdrawn when the shutters are in position and the concrete has been cast. The next lift may be cast by assembling another set of shutters on to the existing shutters.
Patent GB-1476911-A (GB)
Title: Optical interferometer
IPC: G01B9/02
Filed: 1975-05-08
Abstract: 1476911 Interferometers CARL ZEISS JENA VEB 8 May 1975 [13 May 1974] 19398/75 Heading G2J In a modified Michelson interferometer light is split at S 2 , some being returned to P 1  via moveable measuring reflection 4 and some being returned to P 1  via a fixed reference reflector 5, the light from the interference at P 1  being detected at detectors D 1  and D 4  after respective splitting at faces S 3  and S 1 , and the split parts of the interference light being caused to re-interfere at P 2  on S 2  whereby detectors D 2  D3 detect the reinterfered light which is 90 degrees out of phase with the singly interfered light. The differential between D 1  and D2 or between D4 and D3 allows the direction of movement of reflector 4 (as well as the magnitude) to be determined. The accurate functioning of the device depends on absolute parallelism between S 1  and S 2  and between S 2  and S 3 . If S 2  is part of a wedge shaped boundary, due e.g. to an inadvertent wedge of adhesive, this may be corrected by having the beam-splitting surface at Pi on the lower surface of the upper component and by having the splitting surface at P 2  on the upper surface of the lower component whereby emergent rays, i 1  and i 2  will remain parallel Fig. 2 (not shown), providing that the adhesive has the same refractive index as the material of the beam-splitting cube. The interferometer may comprise two sheets of parallel sided glass adhered together and partially reflecting at all surfaces.
Patent GB-932628-A (GB)
Title: Improvements in or relating to expansible and contractible cores for moulding mouldable materials, such as concrete
Inventor: COURTNEY WILLIAM JOHN WESLEY
IPC: B28B7/32
Filed: 1961-05-30
Abstract: 932,628. Expansible moulding cores. MARLEY CONCRETE Ltd. May 22, 1962 [May 30, 1961], No. 19456/61. Class 87(2). An expansible and contractible core consists of two rigid members 10, 11 between which are inflatable tubes connected to a supply of fluid under pressure by pipe 16 and union 17. The members 10, 11 are connected together by springs used to urge the members together when the tubes are deflated. Preferably the tubes are enclosed within flexible sheaths 14 and are connected by web 15 which retains the tubes between the arcuate parts of plates 10, 11. Abutments 29, or, in a modification, Fig. 4 (not shown), metal plates attached to the web 15, are used to urge the inflated tubes and sheaths outwardly from each other to resist the pressure of the moulded material. Hollow sockets 21, fixed to the lower member 11, enclose heads 23 of plungers 24, which are fixed to the upper member 10 to restrict the separation of members 10, 11 to a predetermined limit. The core may be removed from the concrete by means of a chain bridle 27 connected by bolts 28 to the core.
Patent GB-1484119-A (GB)
Title: Drying cylinder for a paper making machine
IPC: D21F5/02
Filed: 1976-05-12
Abstract: 1484119 Drying cylinder ESCHER WYSS GmbH 12 May 1976 [12 May 1975] 19575/76 Heading F4G In a drying cylinder heated by steam for a paper-making machine having internal annular ribs and tubes for removing condensate penetrating the spaces between adjacent ribs, the profile of each rib, i.e. its cross-section perpendicular to its axis, lies in a zone, shaded on the Figure, bounded outwardly by a hexagon and inwardly by a pentagon. The hexagon comprises a rectangle having a width B equalling the full width of the rib and a height H<SP>1</SP> equal to 0À75 H, H being the height of the rib, and a trapezium having a width B<SP>1</SP> equal to 0À65B at the top of the rib. The pentagon has a width B<SP>11</SP> equal to 0À7B at height H<SP>11</SP> equal to 0À5H, and zero width at the top of the rib, at S. The hexagon and pentagon are symmetrical about the centre plane A of the rib. P 1 , P 2  are parabolic profiles fall within the zone, and further profiles are illustrated in Figs. 5 to 10 (not shown).
Patent GB-832221-A (GB)
Title: Improvements in spill spray nozzles
Inventor: SIMMONS HAROLD CUTHBERT
IPC: F23D11/28
Filed: 1956-06-25
Abstract: 832,221. Spray burners. DOWTY FUEL SYSTEMS Ltd. Sept. 20, 1957 [June 25, 1956], No. 19650/56. Class 75(1) In a spill type spray nozzle comprising a swirl chamber into which liquid is fed tangentially under pressure, an outlet orifice at one end of the swirl chamber and an annular spill orifice having a central core at the other end of the swirl chamber, the core is movable axially either to close the jet orifice or to be retracted into a position in which it does not protrude into the swirl chamber. In the form shown, fuel passes from the supply pipe 8 into a tube 2, thence by tangential slots 12 into the swirl chamber 13. A tube 17 sliding within the tube 2 carries a core 18 passing through a spill orifice 15 in a member 2a carried by the tube 2. The orifice 15 communicates by passages 16, 21 with the interior of the tube 17 and thence to a return flow pipe 34. The tube 17 is urged forward by a spring 25 and has a recess at the rear end engaged by a roller 32 carried on a pin eccentrically mounted on a shaft in a recess 33 so that rotation of the shaft causes, the roller to retract the tube 17. Specification 649,970 is referred to.