baber/WOPTO huggingface dataset:
Patent GB-1525955-A (GB)
Title: Vibrators
IPC: B06B1/18
Filed: 1975-02-17
Abstract: 1525955 Rotary positive-displacement fluidmachines VIBRATECHNIQUES Ltd 17 Feb 1976 [17 Feb 1975] 6626/75 Heading F1F In a vibrator (not shown) of the type operated by pressurized fluid and comprising an inner cylinder within an outer cylinder, one of the cylinders being fixed and the other rotating, a bearing surface located at one end of, and normal to the axis of, the rotating cylinder slides against a similarly disposed bearing surface of the fixed cylinder provided by a circular plate 2 of synthetic plastics material having a lower coefficient of friction e.g. P.T.F.E., attached to a backing disc 1 by pressfitted dowels 5. As shown, the disc 1 may have a flange 1b engaged by a sealing ring 4 contained in a peripheral groove of the plate 2, and the plate 2 may be separated from the disc 1 in the axial direction of the disc by an O-ring 3. There may be only two dowels 5.
Patent GB-286276-A (GB)
Title: Manganese bronzes
IPC: C22C9/00
Filed: 1928-03-02
Abstract: 286,276. Metallbank und Metallurgische Ges. Akt.-Ges. March 2, 1927, [Convention da'te]. Alloys.-Manganese bronzes which contain up to 25 per cent. of manganese with or without one or more of the metals chromium, iron, titanium, molybdenum, tungsten, vanadium, zirconium, nickel, cobalt, and silver, contain also lead or cadmium or both, which may be partly replaced by arsenic, antimony, tin, thallium, or zinc. Aluminium is absent except as an impurity. Deoxidants such as silicon or lithium may be added and a small excess of these may be used to modify the properties of the alloys. The Specification as open to inspection under Sect. 91 (3) (a) refers also to aluminium, phosphorus, magnesium, and calcium as deoxidizers. This subject-matter does not appear in the Specification as accepted.
Patent GB-111798-A (GB)
Title: An Apparatus for Defending Ships or Boats "Under Way" from Torpedo Attack.
Inventor: HOSFORD THOMAS STROUD
IPC: B63G9/00
Filed: 1917-05-11
Abstract: 111,798. Hosford, T. S. May 11. 1917. Torpedo screens.-A torpedo defence for ships and boats under way comprises a series of spaced metal ribs K bolted to the bottom at C and supported at the upper ends by stanchions A resting in sockets 11 on the side of the vessel. The engaging parts of the stanchions and sockets are square so as to hold the stanchions at Tight-angles to the side of the vessel. The stanchions A are also stayed by means of chain stays S which lie loosely in bends N near the outer ends of the stanchions.
Patent GB-804276-A (GB)
Title: Apron for overlapping plate apron conveyors
IPC: B65G17/42
Filed: 1957-02-28
Abstract: 804,276. Endless steel-plate apron conveyers. EICKHOFF MASCHINENFABRIK UND EISENGIESSEREI GEB. Feb. 28, 1957 [April 7, 1956], No. 6734/57. Class 78 (1). In an apron conveyer composed of steel plates 1 secured to the vertical links of one or more round-link chains 2, certain of the plates which are provided with rollers have on their undersides a troughed reinforcing plate 4 extending over the entire width of the plate, and carrying the rollers. The bent-over edges 6 of the plate 4 are each provided with a seam adapted to receive the vertical chain link to which the plate 1 is attached and have also a flat impression extending on either side of the seam to receive the adjacent horizontal chain link. The vertical chain link is held in engagement with the seams and secured to the plate 1 by a U-shaped stirrup 3. The plates not carrying rollers are also provided with re-inforcing plates 4, but of a length sufficient only to accommodate the stirrup 3. In the case of a double-chain conveyer two such plates 4 are provided on each plate 1.
Patent GB-1533041-A (GB)
Title: Extrusion head
IPC: B29C48/05
Filed: 1976-02-20
Abstract: 1533041 Tube extrusion head BATTENFELD MASCHINENFABRIKEN GmbH 20 Feb 1976 [6 March 1975] 06864/76 Heading B5A A tube having inner and outer layers, of the same or different thermoplastics material, is extruded by an accumulation piston 26 of a cross head die having an axially adjustable mandrel 6 to around which the material(s) is distributed extending around the mandrel on opposite sides of a sleeve 39, and via a pair of grooves 38, 12, around each of which the material flows in opposite directions from respective offset inlets and is discharged from respective annular outlet slots 42, 43, on opposite sides of the sleeve 39, in a required ratio of thicknesses, to pass through an annular slot 19 whose thickness is adjustable upon axial displacement of a sleeve 16 to effect a throttling action, the slots 42, 43 also being of a minimum thickness which is adjustable by axial displacement of sleeve 39 so that, upon adjustment of slot 19, slots 42, 43 can be maintained at the same ratio of thickness and at a total thickness equal to that of the slot 19. The ratio between the thicknesses of the slots 42, 43 and 19, is maintained by making the walls of the slots 42, 43 and 19, at angles to the axis of the sleeves, such that their sines fulfill the desired requirement by calculation. Thus, in the Fig. 2 embodiment, each slot 42, 43 and 19 comprises parallel walls and the angles are selected such that, where slots 42, 43 are of the same width, sine b = 2 sine a, and sine c = 2 sine b, the relationship providing for the requirement to be maintained upon displacing sleeve 39 by twice the amount that sleeve 16 is displaced. In the Fig. 1 embodiment, material from an extruder 2 is delivered into the head to travel in opposite directions from the mid point of a semi-circular duct 37 to discharge at one end at an inlet into the groove 12, and at the other end into the groove 38 at an inlet through an opening in the sleeve 39. The grooves 12, 38 are of a cross-section which decreases from the inlet into the location at which the material flowing in opposite directions meets. Alternative embodiments describe different arrangements of ducts for discharging material at various locations around each groove, from one or more extruders and including the discharge of different material into each groove.
Patent GB-431925-A (GB)
Title: Improvements in or relating to electrical signalling systems
IPC: H03F1/54
Filed: 1935-03-05
Abstract: 431,925. Two-way transmission. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.-(Assignees of Jacobs, O. B. ; 20, Hamilton Road, Morristown, New Jersey, U.S.A.) March 5, 1935, No. 6871. Convention date, March 6, 1934. Addition to 412,611. [Class 40 (iv)] In the system of the parent Specification in which the battery supply for the amplifiers at an unattended repeater station is obtained over the line, the repeater station is provided with two complete sets of amplifiers which are energized alternatively according to the direction of the supply current. In Figs. 3 ... 6, each of the pairs of amplifiers 24, 25 and 26, 27 represents a complete set of amplifiers for both directions of transmission, the amplifiers of each set having a common heating circuit from which the grid and anode potentials are derived. In Fig. 3 the heating circuits for the two sets of amplifiers include rectifiers 41, 45 which restrict the supply current to one or the other according to its direction. The supply circuit may be grounded at the repeater by the operation of a relay 40 included in the circuit. When there are two or more intermediate repeater stations relays 40 may be provided at two of them as shown in Fig. 2, so as to divide the repeaters into two groups which are supplied with current from opposite ends of the system and are independently controlled in accordance with the direction of the current. Alternatively, the supply circuit may be connected to one set of amplifiers or the other by a polarized relay 94, Fig. 4, or by a pair of relays 95, 96 Fig. 5, having rectifiers 97, 98 in their energizing circuits. Fig. 6 shows an arrangement similar to Fig. 3 having in addition two further sets of amplifiers 124, 125 and 126, 127 which may be substituted respectively for the sets 24, 25 and 26, 27 by the operation of thermal switches 100, 101. The circuits through the rectifiers 41, 45 both include a polarized relay 104 and a sluggish relay 105, the latter responding to current of normal strength and shunting out 104 but being unaffected by weak current. To replace the amplifiers 24, 25 for example, weak current is sent in the reverse direction so that 104 operates to connect up relay 102 which closes the heating circuit of the switch 100 in series with its second winding and shunts out the amplifiers 24, 25. On the restoration of the normal current the coil 109 becomes heated and melts the solder around the plunger 107 so that it is released and is driven to the closed end of its cylinder, thus connecting in the alternative amplifiers 124, 125. The amplifiers 26, 27 may be replaced in a similar manner. The system is adapted for multiplex carrier working employing different frequency-bands in the two directions and means are described for deriving suitable grid and anode potentials for the amplifiers in the two paths. Specification 381,831 is referred to.
Patent GB-309536-A (GB)
Title: Incandescent bodies, such as filaments for electric incandescent lamps, vacuum tubes and the like
IPC: H01K3/02
Filed: 1929-03-02
Abstract: 309,536. Siemens & Halske Akt.- Ges. April 12, 1928, [Convention date]. Vacuum tubes.-Incandescent bodies, particularly filaments, for evacuated or gas-filled lamps, vacuum tubes &c. are constituted by a core of tungsten surrounded by a coating consisting of eka-manganese 75 or of an alloy of these two metals.
Patent GB-913017-A (GB)
Title: Boring head with laterally movable cutting tool
IPC: B23B29/034
Filed: 1960-02-26
Abstract: 913,017. Boring-heads. BREUNING, R. Feb. 26, 1960 [April 30, 1959], No. 6909/60. Class 83 (3). A boring -head 1 comprises a tool-holder 16 radially adjustable of the head by a spring- urged sleeve 5 having a bore 7 in which a shank 16a on the tool-holder is located, the sleeve being adjusted transversely of the boring head axis by a graduated screw 14 which engages an extension 9 on the sleeve 5. The sleeve 5 slides in a bore of a liner 4, fixed in the head, and is secured in the adjusted position by a nut 6 co-operating with a split collar on the end of the liner. The shank 16a passes through a slot 15 in the liner 4 and in the head 1, to allow radial adjustment of the holder 16, and the latter may have bores 18, 18a, into which the tool 3 may be selectively located. Toolholder 16 may be discarded and tool 3 located directly in bore 7.
Patent GB-121248-A (GB)
Title: Improvements in Means for Starting Internal Combustion Engines.
Inventor: REILLY MATTHEW JOSEPH
IPC: F02N15/02
Filed: 1918-04-24
Abstract: 121,248. Reilly, M. J. April 24, 1918. Turning-gear.-An attachment for preventing reversal of the crank-handle 11 comprises a pinion 19 meshing with a gear-wheel 20 on the starting- shaft 12 and prevented from reverse rotation bv a ratchet device; the ratchet-wheel 18 is engaged by pawls 21 of different length, carried by crossheads 23 sliding on rails 26 and held in engagement with the ratchet by strong springs 28.
Patent GB-545519-A (GB)
Title: Improvements relating to lubricating oil compositions
Filed: 1940-04-18
Abstract: 545,519. Lubricants. STANDARD OIL DEVELOPMENT CO. April 18, 1940, No. 7009. Convention date, Dec. 2, 1939. [Class 91] Hydrocarbon lubricating oils are improved by the addition of a small amount of an organic phosphine or diphosphine in which one or more of the hydrogen atoms are replaced by organic, preferably hydrocarbon, groups directly connected through a carbon atom. Such groups may be alkyl, such as methyl, ethyl, propyl or butyl; aryl such as phenyl, naphthyl, anthryl, tolyl, propylnaphthyl and hexyl-naphthyl oranthryl; aralkyl such as diphenylmethyl. Phosphines mentioned are triethyl, tri-n-propyl, tri-isobutyl, tri-isoamyl, phenyl, diphenyl, triphenyl, phenyl dipropyl, phenyl di-isobutyl, tolyl di-isobutyl, dibenzyl isoamyl and tri-p-biphenyl phosphines ; as a diphosphine is specified symtetraphenyl diphosphine. Additive compounds of the phosphines and diphosphines with compounds such as alkyl halides may also be used; also phosphines and diphosphines whose organic groups contain substitutes such as chloro, amino and hydroxyl groups. Specifications 433,257, 462,793, 476,329, and 477,673 are referred to. The Specification as open to inspection under Sect. 91 also describes the use of organic phosphorus compounds having one or more aliphatic, aromatic, alicyclic or heterocyclic radicles connected through carbon to the phosphorus, the remaining valencies of the phosphorus being satisfied by hydrogen or with an inorganic group such as chloride, amino, sulphide thiocyanate, thio, acyl or hydroxyl. This subject-matter does not appear in the Specification as accepted.
Patent GB-703964-A (GB)
Title: Improvements in or relating to water purification
IPC: C02F1/52
Filed: 1952-03-18
Abstract: In a process for removing contaminants wherein a coagulating agent is used there is also used as a coagulant aid a cellulose derivative which is either water-soluble or alternatively alkali-soluble and water-insoluble.  The preferred concentration is 0.5 to 5 parts by weight per million parts by weight of water, in the range 0.1 to 10. Examples of cellulose derivatives are: a sodium salt of carboxymethyl cellulose; a sodium salt of a sulphaethyl cellulose; a methyl cellulose; an oxidized cellulose; a salt of cellulose sulphate; a hydroxyethyl-cellulose which contains from 0.1 to .8, preferably from 0.25 to 0.5 hydroxyethyl substituent per anhydroglucose unit and is alkali-soluble and water-insoluble; a hydroxyethyl cellulose which contains more than 0.8 but not more than 2 hydroxyethyl substituents per anhydroglucose unit and is water-soluble.  The coagulating agent may be aluminium sulphate, ferric sulphate, ferric chloride or sodium aluminate.  The cellulose derivative may be added to the contaminated liquid in the form of a powder but where it is water-soluble it is preferably added in the form of an aqueous solution, and where it is alkali-soluble and water-insoluble it is preferably added in the form of a suspension prepared by dissolving the derivative in a caustic alkali solution and diluting with water.  The cellulsoe derivative may be added to the contaminated water prior to the introduction of coagulating agent, with the agent, or, preferably after a flux has been formed by addition of such agent.  Comparative examples are given in the Specification.  In most instances the solubility characteristics of a cellulose derivative are determined by the number of substituents per anhydroglucose unit, but may vary, and depend upon uniformity of substitution, method of preparation and the like.  For example, sodium carboxymethylcellulose having a degree of substitution below 0.35 is water-insoluble, at 0.35 is partially water-in-soluble and at 0.4 to 0.5 becomes completely water-soluble. An acidic or basic compound may be added in the process for pH adjustment.  The mixture of contaminated liquid and reagent is agitated for from 30 to 60 minutes (though in some instances 10 minutes is sufficient), preferably in a sludge blanket apparatus. The cellulose derivatives can be used singly or in combination with any of the others.  They may also be used with other coagulant aids such as poly-vinyl acetate.
Patent GB-717147-A (GB)
Title: Improvements in or relating to doors for movable containers
Inventor: LEECH ARTHUR
IPC: B66B17/26
Filed: 1952-03-19
Abstract: 717,147. Operating doors of skips and loading receptacles. QUALTER, HALL & CO. (SALES), Ltd. March 19, 1953, [March 19, 1952.] No. 7094/52. Class 78 (4). [Also in Group XXV] A sliding door on a movable container such as a skip or vehicle is slid in a plane substantially parallel to the direction of movement of the container by an electromagnet permitted limited movement against suitable biasing means into contact with the the door so that relative movement between the container and the magnet opens the door. A vertically sliding door 22 on the skip 2 shown in Fig. 1 is opened as the skip completes its upward movement in its guides by energization of a magnet 42 which is moved along guides 40 against springs 44 into contact with the door which is thus held back during the final portion of the movement of the skip. Material is thus discharged from the skip through a flap 14 opened by a ram 20 into a hopper 10. The magnet 42 and the ram 20 are controlled by switches and valves operated by a roller 30 depressed against a biasing spring 34 by a cam surface 28 on the skip. Biasing weights 26 are connected by cables 24 to counterbalance the door. In an alternative construction the magnet 42 is carried by a sliding door which replaces the flap 14 and is operated by a ram. When the magnet 42 is energized the sliding door on the hopper 10 and the sliding door on the skip are connected for conjoint movement. In this embodiment the door 22 may move upwardly relatively. to the skip to open so that a counterbalance is unnecessary. The ram opening the door on the hopper 10 may be controlled by a cam surface on the skip while energization of the magnet 42 is controlled by a cam carried on the door of the hopper.
Patent GB-1429437-A (GB)
Title: Odour-reduced pesticidal compositions
IPC: A01N25/32
Filed: 1974-02-15
Abstract: 1429437 Odour-free resmethrin composition SUMITOMO CHEMICAL CO Ltd 15 Feb 1974 [16 Feb 1973] 7125/74 Heading A5E An odour-free pesticidal composition comprises resmethrin and as antioxidant 2, 2'-methylene bis-(6-tbutyl-4-ethylphenol) A u.v. absorbent and/or a synergist also may be present.
Patent GB-660392-A (GB)
Title: Improvements in method and apparatus for controlling thread tension
IPC: G01L5/04
Filed: 1949-03-16
Abstract: 660,392. Balling - machines. UNITED STATES RUBBER CO. March 16, 1949 [April 30, 1948], No. 7174/49. Class 120(ii). [Also in Group XXXV] In a system such as that described in Specification 631,956 for maintaining a preselected tensile stress in a rubber thread wound for example on a golf ball by detecting the frequency of vibration of a certain length, the vibration detector according to this invention comprises a piezo-electric or like contact microphone, instead of a photo-electric detector. The moving thread passes over a roller 21 and support bar 22 defining the test length and is caused to vibrate at its natural frequency by an airjet 48. The vibrations are detected by a piezo-electric crystal 45 on which the support bar 46 is mounted. Change in frequency due to change in cross-section of the thread are detected by a frequency-discriminator which controls a solenoid type brake operating motor as in the prior Specification to vary the load on the thread and maintain the tensile stress constant.
Patent GB-350433-A (GB)
Title: Improvements in or relating to plant for road breaking
IPC: E01C23/12
Filed: 1930-03-05
Abstract: 350,433. Percussive road-breaking machines. KING, A. E., 21, Dartmouth Row, Greenwich, London. March 5, 1930, No. 7186. [Class 124.] A road-breaking plant comprises a carriage a carrying a number of pneumatically-operated percussive tools f which are each adapted to be moved to a fresh working position without moving the carriage. The tools f are each connected by a wire h passing over pulleys g, g<1> with a plunger i working in a cylinder c. An air reservoir b is connected with each of the cylinders c and also with a horizontal pipe e<1>, having branches e<2> leading to each of the tools f. The tools are adapted to be lowered on to the ground by gravity and are set in operation by opening valves n on the branch pipes e<2>. An extension y on each tool is provided with a collar k which is adjusted so that when the tool has bored to the required depth, the collar is adapted to contact with a stop l for operating a lever x connected by a chain with the corresponding valve n to stop the operation of the tool. The tool can then be raised by operating a lever u controlling a valve w in the compressed air system. Each tool f is supported in a slot d<1> arranged in the frame d of the carriage and on completing a hole the tool is lifted and moved forwardly along its slot d<1> by a lever x<1> and rod x<2>, and is then lowered to its next operating position. The carriage is moved after all the tools have taken up their new positions. The drills may be employed to exert a levering action by moving the carriage forwardly while the drills are in the ground. One lever may be provided for operating the valves n simultaneously. The upper portion p of the carriage forms a silencer and is in communication with the tools through a vertical pipe r. A silencer curtain may be provided around each tool or series of tools. One or more air compressors may be provided either on the carriage a or on a separate vehicle. The carriage may be adapted to be moved by gearing operated from the compressor on the carriage. The frame d may be movable sidewise so as to enable holes to be drilled between those previously drilled. A guide similar to the rod x<2> may be disposed close to the ground to assist in positioning the tools, and an automatic cut-off similar to the levers l, x and collar k may be provided adjacent to such guide.
Patent GB-706077-A (GB)
Title: Improvements in spectacles and spectacle-frames
IPC: G02C1/04
Filed: 1952-03-20
Abstract: 706,077. Spectacle frames. SOC. INDUSTRIELLE DE LUNETTERIE. March 20, 1952 [March 30, 1951], No. 7238/52. Class 97(1) A metallic spectacle frame for rimmed or rimless lenses and extending only over the upper edges. of the lenses comprises, for each lens, a supporting rod formed or provided at one end with a curved supporting surface against which the front face of the lens or lens rim is held by a hub carried by a threaded rod secured to the surface and extending through a hole in the upper part of the lens or rim. As shown the frame comprises a metal rod 1 forming a bridge 1a and having its ends 1c formed as the supporting surfaces. To each portion 1b of the rod 1 is secured a rod 3 carrying the hinged temples 5 and nose pads 6. A threaded rod 7 is secured to each of the portions 1c and extends, as shown in Fig. 3a, through a hole in the lens 2, a nut 10 holding the lens against the surface 1c. A tube 8 and washer 9 of plastic material may be used.