baber/WOPTO huggingface dataset:
Patent GB-551463-A (GB)
Title: Improvements in or relating to the manufacture of trapezoidal or other shaped driving belts for v groove pulleys
IPC: F16G5/08
Filed: 1941-06-18
Abstract: 551,463. Compound sheet materials. SIERRA, J. D. June 18, 1941, No. 7720. Convention date, June 18, 1940. Drawings to Specification. [Class 140] [Also in Group XXIV] In trapezoidal or like-shaped belts having an internal nucleus or core of textile fibres and rubber, the core or nucleus is covered with one or more layers of a tubular braiding or plaiting of natural or artificial fibres, the belt so formed being subjected to pressure and heat in a mould to give it the desired trapezoidal or other shape. The braiding may be impregnated with rubber or the like before application. The braided cover may be applied to a nucleus or core which has been previously moulded, and the resulting belt impregnated with rubber or other plastic material as a solution or aqueous suspension, and vulcanized in a mould.
Patent GB-177166-A (GB)
Title: Improvements relating to the construction of sea and river dams
IPC: E02B3/06
Filed: 1922-03-16
Abstract: 177,166. Schultz, E. J. A. March 19, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Dams.-Dams are formed by submerging blocks of concrete connected together by one or more cores of reinforced coment and sunk to any depth in the water by washing away or excavating the ground by a current of water coming from the interior of the blocks themselves. This excavated portion is filled with concrete introduced by means of the conduit by which the excavating-water was introduced and also from the outside in a known manner. One or more parallel rows of such blocks are constructed at the same time connected together by tie-rods and the spaces between them filled, as the work advances, with rubble, earth, concrete, &c. Fig. 1 shows a concrete block for such a construction, provided with a dovetail projection E and a recess F for the reception of such projection on the next block against which it rests. Holes G are formed for the reception of reinforcing rods and cement to cor.nect the blocks together. Larger holes I are formed, one of which is placed in communication with the centrifugal pump for excavating at the bottom for sinking the blocks, while the other is used for supervising the sinking operation. These holes are also used for anchoring the dam by rods K, Fig. 3, when the excavation is completed, and are filled with concrete when a row of blocks are embedded. Recesses P are also provided to key panels formed by these blocks with the solid mass of concrete between them. The blocks are lowered by means of winches W, Fig. 3, connected to cables o, Fig. 1, and the spaces between the recesses F and projections E are filled with cement after the cables o are removed. Before laying the first blocks, the bank is prepared to form a slope of regular inclination R, Fig. 3. When the dam comprises several panels such as S, T, Fig. 4, those that are arranged vertically are first formed, rods X are lowered in place, after which the bank panels U are formed and central part V is filled with earth &c., the platform Y formed and the bank Z filled with concrete. The panels may be finished with a coping formed by successively placing in position panels a, Fig. 6, connected by bolts b screwed to plates c, Fig. 1, in the recesses P, filling in with concrete and then when set removing the panels a.
Patent GB-345079-A (GB)
Title: Improvements in or relating to single chamber compressed air brakes
IPC: B60T15/18
Filed: 1930-03-10
Abstract: 345,079. Fluid-pressure brakes. HILDEBRAND, W., 3, Ulmenplatz, Lichterfelde, Berlin. March 10, 1930, No. 7767. Convention date, March 11, 1929. [Class 103 (i).] In a single chamber compressed air brake in which the release of the brake can be effected in successive stages the filling of the constant pressure control chamber is regulated by a slide valve controlling the release of the brake, this valve comprising a piston Ka is exposed to the pressure in the train pipe L (or in the auxiliary reservoir) and on the other side to the pressure in the control chamber A, so that on brake operation the valve S quickly shuts off the connection a<1> between the control chamber and the train pipe (or auxiliary reservoir) in which a reduction of pressure is taking place whereby return flow of the control chamber contents is prevented and a clearance is provided between the slide valve piston and a piston Kc exposed to the pressure in the brake cylinder C whereby the effect of the latter on the valve ceases before the inlet to the control chamber is again opened and this inlet remains closed till the train pipe or auxiliary reservoir has attained its maximum value. In release position the brake cylinder is connected to the exhaust outlet o, and when the valve moves up on brake application the brake cylinder is connected to the auxiliary reservoir B and the rod of the piston Ka raises the piston Kc. The increased train pipe pressure on brake release and brake cylinder pressure move the valve down connecting the brake cylinder by a small branch c<1> to exhaust, and the valve comes to rest, owing to the fall in brake cylinder pressure, before the inlet a<1> is exposed. The braking action is thus reduced step by step.
Patent GB-594243-A (GB)
Title: Improvements in or relating to perambulators
IPC: B62B9/20
Filed: 1945-03-27
Abstract: 594,243. Clips ; stud-and-socket fastenings. DUNKLEYS (LONDON), Ltd., and LAFONE. L. A. March 27, 1945, No. 7769. [Class 44] [Also in Group XXXII] A clamp for mounting the horizontal arms of a U-shaped handle-bar along the sides of a perambulator comprises a fixed member 1, Fig. 4, to which is pivoted at 6 a member 5 the two members having semi-circular recesses 7, 8 to embrace the bar 3. The clamp is secured by a screw 9 the threaded end 11 of which engages a socket 12 on the fixed member. A transverse pin engages a reduced part 13 of the screw to prevent complete withdrawal from the member 5. The member 1 may be a metal pressing and the member 5 of moulded synthetic resin. In a modification, the screw 9 is replaced by a bolt formed near the end with a pair of slots 17, Fig. 6, adapted to be engaged by the limbs 18 of a U-shaped spring mounted in the fixed member. To permit withdrawal the bolt is turned through 90 degrees so that the limbs 18 are clear of the slots. In a further modification, one of the slots in the bolt is engaged by a single flat metal spring. In a further modification, the bolt is provided with a transverse pin which may be passed through slots in the fixed member and turned for locking, the resiliency of the fixed member preventing accidental release.
Patent GB-648992-A (GB)
Title: Tunnel furnace
IPC: F27B9/02
Filed: 1948-03-15
Abstract: 648,992. Firing pottery. GOTTIGNIES, L., and GOTTIGNIES, R. March 15, 1948, No. 7803. Convention date, Sept. 3, 1938. [Class 87(i)] [Also in Groups XI and XII] The Specification as open to inspection under Sect. 91 includes a support for ceramic tiles to be fired in an electrically heated tunnel furnace (see Group XII). Fig. 6 (Cancelled) shows a support 18 for the tiles 22 comprising a plate 19 sliding through the tunnel fitted with vertical walls 20 provided with projections 21 on which the tiles rest, the vertical walls having feet 23 set in non-continuous notches 24 spaced across the width of the plate 19. The edges of the walls 20 and projections 21 are flared outwardly to prevent damage to the tiles 22 as they are stacked on the support. This subject-matter does not appear in the Specification as accepted.
Patent GB-560453-A (GB)
Title: Improvements in or relating to electron lens systems
IPC: H01J29/62
Filed: 1942-06-10
Abstract: 560,453. Electron lenses. WESTERN ELECTRIC CO., Inc. June 10, 1942, No. 7931. Convention date, May 31, 1941. [Class 39 (i)] A plurality of pairs of metallic members such as 14, 15, Fig. 2, and 16, 17 generally parallel throughout most of their length, are arranged in sequence along a longitudinal axis x which passes between the members of each pair, and each member is flared outwardly in the portion thereof adjacent another pair of members ; the flare aperture is twice the minimum distance S between the plates and the flare is confined to an axial length S. A particular form of field, derived from a hyperbolic function of a complex variable, is discussed and it is shown that the spherical aberration of a ray grazing the plates is greatly reduced. In Fig. 8, a ribbon beam from linear cathode 31 is focused by two such lenses L2, L3 on the twin targets 38, 39, over which it is deflected by an input signal applied to plates 34, 35, to give an amplified output at 53. Pairs of plates 33 and 36, flared only at one end, co-operate with fully flared plates 34, 35. A pair of negative plates 32 form a further lens L1 with unflared end of plates 33. Plates 33, 36 and suppressor grid 37 are all at the highest potential of voltage divider 40.
Patent GB-207460-A (GB)
Title: Apparatus for distillation of solid materials
IPC: C10B47/26
Filed: 1923-03-20
Abstract: 207,460. Piron, E., and Caracristi, V. Z. March 20, 1923. Heating systems and apparatus.-In a distillation apparatus for solid materials the material is heated by a bath of molten material without direct contact therewith by passage over the bath on a conveyer floating on its surface. The material is delivered from a hopper 16 on to an endless conveyer 10 which passes over and in contact with a bath of molten material 14 heated by flues 42, the distillates escaping through outlets 40. The residue is conveyed to disintegrating means comprising endless chains or belts 19 having projections and moving at a speed different to that of the conveyer whereby the material is broken up any gases contained therein being released and falls on to a conveyer 25 moving in proximity to the inverted conveyer 10 by which it is kept hot during its passage to the sealed outlet 31. A row of cooling tubes 48 prevent the heat of the bath spreading unduly to other parts of the apparatus.
Patent GB-985081-A (GB)
Title: Improvements in continuous envelope assemblies
IPC: B65D27/10
Filed: 1964-02-26
Abstract: 985,081. Continuous envelope assemblies. GLOBE ENVELOPES Ltd. Feb. 26, 1964 [June 20, 1963], No. 8007/64. Heading B6A. A continuous envelope assembly comprises a carrier web 1, Fig. 1, having a plurality of envelopes 3 mounted thereon which have their sealing flaps 5 extended with the adhesive 11 carrying face thereof facing the web and each of the envelopes is adhesively secured to to the web at at least two areas one of said areas 13, Fig. 2, being within the sealing flap are defined by the adhesive 11 and the other area 14 being within a body portion 10, which will be covered by the sealing flap. The envelopes 3 may be separated from the web by passing the latter in the reverse direction over an upper feed platform 18 and pulling the web through a slot 21 of a sloping wall 20 whereby the envelopes 3 will be deposited in a lower envelope receiving platform 19.
Patent GB-328383-A (GB)
Title: Manufacture of improved preparations useful for the production of dyestuffs
IPC: C09B67/36
Filed: 1929-03-12
Abstract: 328,383. Imray, O. Y., (I. G. Farbenindustrie Akt.-Ges.). March 12, 1929. Dyestuff preparations are made by mixing together a nitrosamine alkali metal salt, a diacetoacetylarylide, a feebly acid substance sufficient for neutralizing the excess of alkali, and a waterbinding salt. In examples, (1) the moist nitrosamine sodium salt of 4-chlor-2-anisidine is mixed with sodium bicarbonate and anhydrous sodium acetate or Glauber's salt and diacetoacetyl-otolidine added while grinding, (2) the nitrosamine sodium salt of 2 : 5-dichloraniline, Glauber's salt (anhyd.) and diacetoacetyl-o-tolidine are ground together in presence of carbon dioxide or with sodium bicarbonate; (3) the nitrosamine sodium salt of 4-chlor-2-anisidine is ground with boric acid, anhydrous Glauber's salt, and diacetoacetylo-tolidine. Specifications 210,217 and 217,594 are referred to.
Patent GB-251078-A (GB)
Title: Improvements in or relating to receiving systems for high frequency electrical oscillations
IPC: H03D1/10
Filed: 1925-03-26
Abstract: 251,078. Wade, H., (Carborundum Co.). March 26, 1925. Drawings to Specification. Crystal detectors; thermionic amplifiers. - A wireless receiving circuit comprises one or more high-frequency valve amplifiers feeding the circuit of a silicon-carbide detector. The crystal is treated as in Specification 247,767, to remove surface impurities, and to provide at its non-rectifying portion a thin surface coating of good conducting metal. The rectification contact isformed by a hard metallic member pressed by a spring into engagement with the crystal. A cartridge type of enclosed detector, described in the Specification, is identical with that shown in Fig. 1 of Specification 251,408. The telephones may be placed in the crystal circuit, or one or more stages of low-frequency amplification may be employed.
Patent GB-939914-A (GB)
Title: Improvements in and relating to semi-rotary hydraulic servo-motors
Inventor: SMITH JOHN WILLIAM
IPC: F15B15/12
Filed: 1959-03-10
Abstract: 939,914. Hydraulic servomotors of the semirotary vane type. ENGLISH ELECTRIC CO. Ltd. Feb. 26, 1960 [March 10, 1959], No. 8214/59. Class 110 (2). The vanes 34 of the motor are sealed against the motor casing 30 by strips 35 along their edges kept in contact with the casing by springs 42 and pressure liquid under control of doubleseated valves 61 mounted in the vanes. The rotor 32 carries vanes 35 and the casing 30 has radial abutments 33. The strip 35 of low friction material is fitted into a groove 44 in the vane and secured to the vane by pins 41. A similar strip 45 is positioned radially on the end face, sealing the vane against the cover 28, the seals being diagonally chamfered where they meet, Fig. 3, and L-shaped corner pieces 39 fitted. Rubber seals 46 of U-profile are positioned between the strips and the vanes with backing strips 48 interposed between them and the compression springs. Arcuate sealing strips 50 are arranged along the circumference of the rotor hub with similar rubber seals and backing strips and are secured in place by brackets 51 fixed by the rotor and sealing strips 45. Doubleseated valves 61 are slidably mounted in transverse bores 60 in the vanes which are in communication with the spaces under the rubber seals 46 and 56 through blind bores 64, thus enabling hydraulic pressure to be communicated to the seals by the valve 61 being pushed against one of the bronze seats 62. Similar sealing arrangements are provided for the abutments 33 and the bottom plate 29.
Patent GB-725719-A (GB)
Title: Improvements in and relating to cathodes for electric discharge devices
IPC: H01J1/26
Filed: 1953-03-25
Abstract: 725,719. Cathode materials and processing. GENERAL ELECTRIC CO. March 25, 1953 [April 1, 1952], No. 8242/53. Class 39 (1). Layers of thoria and of a carbide of one of the metals tantalum, tungsten, molybdenum are formed cn the respective sides of a thermionic cathode. A tantalum cathode 1 is fitted with a sleeve 3 which is grooved at the ends of a diameter for the passage of the heater-connecting wires to the terminal sleeve 5. The terminal 4 also supports the filament 2. A layer of carbide mixed with methyl cellulose is heated in a vacuum to 1700-1800‹C. to reduce the thickness from 0.5 microns to 0.001. Thoria is sprayed, painted or deposited by electrophoresis and the cathode again heated for 30 mins. in a vacuum so that carbon will diftuse though the sleeve 1 to reduce to thoria some of the thorium coating. Further reduction of the thoria is produced during the activation of the thermionic valve when the cathode is heated by the heater to 1700-2200‹C. for 10-90 fins. Dimensions of the electrode and details of the electrolyte are included in the Specification.
Patent GB-416854-A (GB)
Title: Improvements relating to oil retaining and dirt excluding rings for use with machinery bearings
IPC: F16C33/74
Filed: 1933-03-20
Abstract: 416,854. Stuffing - box packing. AYRES, G. H., 128, Ulverley Green Road, Olton, Warwickshire. March 20, 1933, No. 8343. [Class 122 (v).] A packing for bearings comprises a pair of flexible flanged packings b supported in a metal housing c, which may consist of two end plates e riveted to a sleeve d. The packings may be pressed against the shaft by spring fingers p formed on plates o. Alternatively, garter springs or spring wire may be coiled around the flanges of the packings b or a single resilient strip may embrace both flanges. In a modification, the housing c embraces the shaft whilst the packings bear on the casing. The housing may be built up as shown in Fig. 3, the parts being secured by rivets m or by spun over ends of the sleeve h.
Patent GB-1079134-A (GB)
Title: Process for the production of electrets
IPC: H01G7/00
Filed: 1965-02-26
Abstract: 1,079,134. Electrets. PHILIP MORRIS Inc. Feb. 26, 1965 [Feb. 28, 1964], No. 8429/65. Heading H1M. Electrets are produced by winding one or more turns of cellulose-acetate, polyethylene terephthalate, polyvinylidene chloride, polychlorotrifluoroethylene, polyvinylchloride, or polymethyl methacrylate film on a steel, copper, brass, or aluminium core, winding over the film a conducting sheath of aluminium, tin, or stainless steel foil, and heating the assembly to an elevated temperature just below the softening point of the foil for an extended period. Thereafter, a high electrostatic potential is applied between the electrodes during a further extended period while heating is maintained, and the potential is further maintained while the assembly is allowed to coil. The material may be removed, dissected and reassembled with other electrodes. The electrodes may be used as dosimeters.
Patent GB-769367-A (GB)
Title: Improvements in or relating to electric motor control apparatus
Filed: 1955-03-24
Abstract: 769,367. Control of several A.C. motors. FERNSEH GES. March 24, 1955 [March 24, 1954], No. 8584/55. Class 38(3) Synchronous motors are operated in mutual synchronism by being interconnected on their primary and secondary sides, and the motors are brought into synchronism by short-circuiting, or joining through an impedance, two secondary terminals on each motor and applying direct-current 'between these terminals and the third secondary terminal. As shown, a relay 30 is energized when the motors are at a standstill so that a circuit is completed to the coil of relay 50 through contacts 31, 18 whereby contacts 51, 52, 53, are closed. The rotor windings of the motors are connected to the mains supply R, S, T, through transformer windings 15. The closure of switch 17 energizes relay 70 so that resistors 3, 4 are connected across two stator terminals on each motor. After the motors have started, contacts 19 are closed to energize relay 20, and contact 21 is changed-over to actuate relay 40 when contacts 81 are closed. The latter contacts are under the control of coil 80 which is connected in parallel with a filter circuit 8, 14, 16, whereby the relay coil is energized when the frequency of the stator currents. have reached a low value. The actuation of relay 40 closes contacts 41, and a source 5 of direct-current is connected through choke 8 and contact 52 to two stator terminals of each motor. The relay 80 is polarized in order that the direct-current supply may be switched on at the correct instant during the cycle of the stator current. The capacitor 16 is discharged through contact 22 when the motor comes to a standstill. To stop the motors, they are disconnected from the mains and the motors are allowed to decelerate with the direct-current excitation applied to the stator windings, after which the direct-current excitation is removed and the motors are re-connected to the alternating-current supply. The motors are reversed by means of the switch 18. When the motors are synchronized, the resistor 3 is short-circuited by contact 42. Means are provided to ensure that the connections for reversal are made only after the motors have come to rest. The frequency of the alternating-current supplied to the motors may be controlled by means of a quartz crystal oscillator.
Patent GB-842609-A (GB)
Title: Improvements in and relating to equipment for filling sacks with comminuted materialfrom containers
IPC: B61D5/00
Filed: 1957-06-17
Abstract: 842,609. Weighing apparatus. COAL INDUSTRY (PATENTS) Ltd. June 17, 1957 [March 20, 1956], No. 8674/56. Class 143 [Also in Groups XVII and XXXII] Apparatus for loading coal into sacks 21 from a vehicle such as a railway wagon 13 (see Group XXXII), includes a chute 26 leading to a sack holder 22 mounted on a weighing platform' having a visual indicator 24, the flow of coal down the shoot being controlled by a manually operated undershot gate 32. The apparatus is mounted on a trolley movable towards and away from the vehicle on rollers 39, the whole being carried on a further trolley running on rails 12 parallel to those 11 on which the vehicle is standing. The shoot is raisable slightly by hand operated lever means 27 to enable a hook 35 to engage the vehicle. An auxiliary shoot 36 leading to a further sack (not shown) catches any overspill of coal. The gate 32 may be a series of bars operated by a lever 31 and a further gate 33 may be provided to be raised to release any blockage. A guard 29 protects the operator. The sack weight is adjusted by adding or removing coal by hand.
Patent GB-739966-A (GB)
Title: Load weighing devices
Inventor: BRUNS WILLIAM HENRY
IPC: B66B1/34
Filed: 1954-03-25
Abstract: 739,966. Weighing-apparatus. OTIS ELEVATOR CO. March 25, 1954, No. 8721/54. Class 143. [Also in Group XXXVII] A lift comprises a framework 12, 13 in which the cab 10 is supported by rubber pads 30, and at least one electric micro switch 40 actuated when the load in the cab compresses the rubber pads beyond a predetermined value. Preferably there are three such switches operated at different loads, each switch 40 comprising a plunger 65, Fig. 2, moving with the floor of the cab, and co-operating with an adjustable spring- loaded member 67. The rubber pads are preferably bonded to plates at top and bottom to prevent lateral displacement under load.
Patent GB-541486-A (GB)
Title: Means for cleaning boilers, flues and the like
IPC: F23J1/00
Filed: 1940-05-17
Abstract: 541,486. Cleaning furnace flues. REISS, A., and REISS ENGINEERING CO., Ltd. May 17, 1940, No. 8798. [Class 99 (ii)] [Also in Group XXX] In an arrangement in which steam or air is blown through a boiler flue and the dust from the flue is blown into an accessible pit which is closed to the outside air to prevent loss of draught, means are provided for reducing the otherwise excess pressure which would result in the pit during the blowing operation. As shown in Fig. 1 a pipe T leads from an outside pit J to a main flue N, admission of steam or air to the pipe for cleaning the flue being controlled by a valve E. Dust is blown from the bottom of the boiler flue into the flue G by blowers A in a protected pipe B. A blower H transfers the dust from the flue G to the pit J between which and the flue G is a damper. A valve M is located in the pipe K, the vasiable passage through the pipe serving to maintain the necessary reduced pressure in the pit. Instead of connecting the pipe K to the flue N it may be led to another flue or to a suction fan. In a modified arrangement, the pipe K is dispensed with and the flue G is divided at the pit end so that air or steam can escape through the upper section of the divided flue.