baber/WOPTO huggingface dataset:
Patent GB-842267-A (GB)
Title: Improvements in or relating to methods of forming seatings in tubes
IPC: B21D39/04
Filed: 1957-02-22
Abstract: 842,267. Making furniture; frameworks; shearing; forging; welding by fusion; angular bending; bolted joints; soldering. CRUSON, I. P. Feb. 22, 1957 [Feb. 29, 1956; July 13, 1956], No. 6033/57. Classes 83 (2) and 83 (4). [Also in Group XXXI] In a method of making a seating on a tube to obtain a joint with another tube crossing the first tube, e.g. a joint for metal furniture, bicycle handlebars, constructional and other framework &c., the first tube wall, while supported in a troughed matrix as deformed by a die-tool which corresponds to the shape of the required seating and enters a further transverse trough in the matrix. A seat 9 is formed on a tube 7, Fig. 3, lying in a cavity 21<SP>1</SP> of a matrix 22, Fig. 6a, by a die-tool 23, Fig. 6b. The matrix 22 may mount a knife 24 to cut the seat as it is formed to make half-seats 14 at the ends of tubes. A joint with a tube 1 or a bar 18 is completed by welding at 11, 12, 13 or 15, 17. Straight tubes may cross at any inclination or during seating in modified dies the first tube may be bent to an obtuse angle so that the seating for the second tube is either in a plane parallel to that defined by the inclined parts of the first tube, a plane perpendicular to that plane or in some intermediate plane therebetween. Double seats may be made and the joint may alternatively be secured by bolting a tube to the seating. In a modification, single-walled seats 60 and 61, Fig. 18, are formed by forcing the walls of a tube 59 outwardly, using a chisel-shaped die 63, Fig. 17. Alternatively, one wall only may be penetrated to prepare a T-joint, the forced wall of the tube being doubled back during the piercing to form a double thickness seat, the joint being completed by hard and soft soldering.
Patent GB-410291-A (GB)
Title: Manufacture of glass permeable to ultraviolet rays
IPC: C03C3/17
Filed: 1933-02-28
Abstract: 410,291. Glass manufacture. GROVES, W. W., 30, Southampton Buildings, London.- (I. G. Farbenindustrie Akt.-Ges. ; Frankforton-Main, Germany.) Feb. 28, 1933, Nos. 6112 and 8644. [Class 56.] Glass which is transparent to ultra-violet radiation and is resistant to the action of water is made from a batch that consists chiefly of barium metaphosphate. The batch may also contain calcium metaphosphate or magnesium metaphosphate, or a mixture of both, in a quantity which does not exceed that of the barium metaphosphate. Aluminium metaphosphate may be added instead of, or in addition to, the metaphosphates of the alkaline earth metals. Silica or boric oxide, or a mixture of both, may also be added to extend the range of plasticity of the molten material. Examples of methods of preparing the batches are given in the Specification.
Patent GB-640005-A (GB)
Title: Improvements in and relating to coincidence circuits
Inventor: THOMAS DAVID GURNEY ARNOLD
IPC: H04J3/04
Filed: 1947-03-04
Abstract: 640,005. Phase-difference measurements. MINISTER OF SUPPLY. March 4, 1947, No. 6174. [Class 37] The relative displacement between two sets of pulses is measured by applying each over delay networks adjustable in increments to a coincidence indicator, the maximum delay of one network being equal to the minimum delay of the other network. The pulses are applied at A, B to delay lines 9, 4 ; delay line 9 is tapped to provide over switch 10 a delay of from 0 to 10 equal increments, while delay line 4 is tapped to provide over switch 5 a delay of from 0 to 5 equal increments, the maximum delay from line 9 being equal to an increment on line 4. The pulses from switches 10 and 5 are reshaped by circuits 11, 6 and applied to a coincidence indicator 14 which feeds a shaping circuit 15 and output circuit 16 to feed, e.g. an electrical counter. The coincidence indicator 14 is preferably a pentode valve whose control and suppressor grids are fed with pulses from 6, 11 respectively so as to give a pulse when coincidence occurs. The pulse shaping circuit 11 is adjusted by switch 13 to give a pulse in which each pulse has a width as desired from a maximum to a minimum so as to facilitate the adjustment of switch 10 in obtaining coincidence ; the initial adjustment of switch 5 occurs when the pulse from 11 is made of maximum width, and the pulse width is progressively reduced while switch 10 is adjusted. If the delay networks are pre-set to a desired value, the circuit will give a response whenever a pulse of one train is distant from a pulse in the other.train.by the pre-set delay.
Patent GB-235300-A (GB)
Title: Improvements in or relating to electro-magnetic apparatus, specially suitable for use as a relay, switch, motor or like device
IPC: H01H51/22
Filed: 1924-03-11
Abstract: 235,300. Creed & Co., Ltd., and Creed, F. G. March 11, 1924. Electromagnets. - In elootromagnetic apparatus of the kind described in Specification 172,717*, the two polarized massive U-shaped laminated pole-pieces are fixed upon a non- magnetic frame a carried by a baseplate d and provided with a central vertical nonmagnetic plate i carrying upper and lower bearing-pieces k, k<1>, the upper bearing being readily removable. For adjusting the frame in a vertical plane, the ends e<1>, e<2> of a transverse bar e carried by the frame are engaged respectively with a screw g and spring f mounted on the base-plate. The frame has a plug b fitting a socket c on the base-plate and is prevented from rising therein by a screw h. The armature m is carried by a long spindle n engaging the bearing-pieces k, k<1>, the upper bearing k being removable and the lower one k<1> including a hard steel ball o carried on the plate i. The armature coils y may be carried directly by the frame on opposite sides of the plate i. or they may seat on the lower bearing-pieces and be held in position by the upper bearing-piece, which extends through the plate i and lies partly over each coil. In a modification, Fig. 6, the frame a is provided with extensions a<1> on which is mounted a plate carrying contacts or stops s. The plate r is provided with tubular lugs t, one of which is screw-threaded and engaged by a spindle u which is further screw-threaded with a different pitch for engagement with the bearing v<1>, so that the plate r may be adjusted with respect to the armature m. The plate r is held on to the extensions a<1> by a tension spring x connecting it with the frame a.
Patent GB-1535357-A (GB)
Title: Safety valve apparatus for gas storage and other wells
IPC: E21B34/08
Filed: 1976-02-18
Abstract: 1535357 Wells &c SCHLUMBERGER TECHNOLOGY CORP 18 Feb 1976 [26 Feb 1975] 6285/76 Heading E1F [Also in Division F2] Safety valve apparatus adapted to be installed at a subsurface location in a flow conduit, e.g. in a gas storage well, includes a valve 21 which is closed in response to a decrease in the flowing pressure in the conduit adjacent the valve 21 to a value that is below a dome reference pressure, and a flow restriction 30 upstream of the valve 21 for causing the flowing pressure adjacent the valve 21 to drop below the dome reference pressure in response to abnormal conditions in the conduit downstream of the valve means e.g. a gas escape at the surface. As described the valve 21 and restriction 30 are mounted in a housing 11 which is hung from an anchor and packer assembly (not shown) so that the entire gas flow passes through the restriction 30, upwardly through passages 28, 31 and through the valve ports 33. The flowing pressure of the gas adjacent the valve 21 acts, via ports 65 and a double bellows 56, 78 filled with incompressible fluid, against the reference pressure of an inert gas in a chamber or dome 84. Should the gas escape at the surface, the restriction 30 causes the pressure adjacent the valve 21 to drop below the pressure of the gas in the dome 84 thus causing the bellows 56 to expand. Expansion of bellows 56 raises a sleeve 54 which in turn raises a release sleeve 48 until a reduced diameter portion 89 of sleeve 48 reaches the level of ball detents 45. Inward movement of the ball detents 45 releases valve member 40 and allows spring 57 to shift the valve member 40 to close the valve ports 33, thus cutting off the passage of gas through the apparatus. The valve 21 can be opened by increasing the pressure of the gas downstream of the valve 21.
Patent GB-475317-A (GB)
Title: Means for fastening detachable protectors for heels or soles to shoes or boots
IPC: A43B21/47
Filed: 1937-03-03
Abstract: 475,317. Protectors for shoes &c. SYLVEN, G. E. March 3, 1937, Nos. 6333 and 6334. Convention dates, June 10, 1936 and Dec. 11, 1936. [Class 17 (iii)] [Also in Group XXV] A heel or sole protector is secured to a shoe or the like by means of apertured locking plates 10 embedded in the protector and pins 1 secured to the shoe. Each pin has a stop member 3 and a projecting portion 6 provided with a head 7. The heads 7 are snapped through the apertures in the plates, and thereby secure the protector to the shoe. Four different kinds of pin are shown in Fig. 3. From left to right, the first pin is formed as a nail, the second as a woodscrew for the part in the heel 4 and as a nail for the part in the outsole 5, the third as a wood-screw throughout its length, and the fourth as a wood-screw for the part in the heel and as a cutting tool provided with cutting edges for the part in the outsole. The ends of the pins may be riveted to the inside of the outsole and no other means is necessary for attaching the heel to the outsole. A modified locking plate 15 is provided with resilient flaps 14 which after passage of the head 7, spring back and retain the head as shown in Fig. 3.
Patent GB-215885-A (GB)
Title: Improvements in and relating to means for sealing joints between relatively movable elements
IPC: F16J15/16
Filed: 1923-03-05
Abstract: 215,885. Oliver, E. L. March 5, 1923. Stuffing-boxes, substitutes for; packing, non- metallic.-Packing for rotating parts, particularly applicable for turbines and centrifugal pumps, comprises a ring 14, Fig 2, of rubber or other elastic material, which is secured either to the stationary element 2 or to the rotating element 13, and out of contact with the, outer element. The ring is deformed by the fluid pressure and, when secured to the rotary element, by centrifugal force into rubbing contact. Preferably the ring is of dovetail cross-section and is secured in an undercut recess by a metal ring 15. The ring may be of hard rubber and may be perforated radially or axially, as shown in Figs. 3 and 4.
Patent GB-939759-A (GB)
Title: Apparatus for compacting hay or other forage crop
IPC: B30B11/20
Filed: 1960-02-24
Abstract: 939,759. Apparatus for compacting and pelleting hay. MASSEY-FERGUSON SERVICES N.V. Feb. 24, 1960 [March 4, 1959], No. 6468/60. Class 49. A machine for forming pellets of hay includes a hopper 12 for the reception of cut hay, e.g. from a forage harvester, a chamber 13, 14, communicating with the hopper, a feed conveyer 34, 35, extending between the hopper and chamber to convey hay to the chamber, a plurality of open-ended pellet-forming cells 42 disposed annularly around the chamber, one open end of each cell being presented towards the interior of the chamber, a series of partitions 44 dividing the cells and having sharp edges 45 presented towards the chamber, and serrated rollers 31 mounted on members 29 for urging the hay into engagement with the sharp edges whereby the hay is severed, compacted and passed through the pellet-forming cells. A rotating blade 24 adjustably mounted on an arm 19 breaks off particles from the compressed hay after it has passed through the cells. The common shaft 16 for the feed conveyer, members and arm is attached at 26 to any type of driving connection from a tractor or other towing vehicle.
Patent GB-861300-A (GB)
Title: Covered electrical conductor
IPC: H01B3/44
Filed: 1957-02-27
Abstract: 861,300. Extruding coatings on cables, cellular polyvinyl chloride. DU PONT DE NEMOURS & CO., E. I. Feb. 27, 1957 [Feb. 29, 1956], No. 6526/57. Class 87(2). A process of coating an electrical conductor with uni-cellular polyvinylchloride comprises mixing the resin, a plasticiser and a chemical blowing agent, heating the mixture and extruding it around the conductor in a high-pressure environment. The resin mixture may contain anti-oxidants, stabilisers, fillers, lubricants and pigments and the blowing agent may be dinitrosopentamethylene tetramine, azo dinitriles, carbonates, aryl azo sulphones, urea, biuret, di-N-nitroso piperazine, and N, N<SP>1</SP>- dimethyl N,N<SP>1</SP> dinitroso terephthalamide. Examples of stabilisers are organic and inorganic lead salts, e.g. dibasic lead phthalate and tribasic lead sulphate, metallic soaps, e.g. barium calcium laurate, epoxy compounds, e.g. diglycidyl ether or butyl epoxy stearate and also organomefallic complexes. Seven mixtures are tabulated of which one is p.v.c. 100 (parts), N, N<SP>1</SP> dimethyl N,N<SP>1</SP>-dinitroso terephthalamide in paraffinic hydrocarbon oil (70/30) 15, dioctyl phthalate 30, " Arochlor " (Registered Trade Mark) 30, tribasic lead sulphate 10. Tricresyl phosphate may be substituted for dioctyl phthalate. An apparatus shows a wire 14 passing through an extrusion head 10 and the coated wire entering a pressure chamber 15, fed with water through an inlet 18 and emerging through an adjustable seal composed of alternate rubber and metal washers 27, 28 compressed by rotation of a cap 23. Specification 861,299 and U.S.A. Specifications 2,491,709, 2,754,326 are referred to.
Patent GB-1088565-A (GB)
Title: A syringe valve for facilitating the administration of supplementary medicaments or fluids during the parenteral administration of main fluids
IPC: A61M39/02
Filed: 1965-02-16
Abstract: 1,088,565. Surgical infusion apparatus. VIGGO A.B. Feb. 16, 1965 [Feb. 20, 1964], No. 6551/65. Heading A5R. [Also in Division F2] A valve for use in surgical infusion apparatus for the simultaneous feeding of a first fluid (e.g. blood) and a second fluid (e.g. a supplimentary medicamemt) to a mixing chamber 6 comprises a housing having a passageway between an inlet (3) and an outlet (4) and a feedto orifice (8), yieldable means 12 in sealing relationship with the feed-in orifice and which yields under pressure to provide communication between the feed-in orifice and the mixing chamber whereby the fluids are mixed. The yieldable means 12 may be of rubber or resilient plastic, such as polyethylene or polyvinyl chloride, is carried by a tubular insert 10, and may alternatively be in the form of a semicircular lip. The orifice (8) is surrounded by a conical tube 7 adapted to receive the tenon cone 16, of a hypodermic syringe containing supplimentary medicament or a cap-like closure member (not shown). The outlet may be connected to a cannula.
Patent GB-1423093-A (GB)
Title: Formation of lead dioxide on lead and its alloys in aquous chloride medium
IPC: C22C11/00
Filed: 1974-02-13
Abstract: 1423093 Electro-depositing PbO 2 ; cathodic protection COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH 13 Feb 1974 6588/74 Headings C7B and C7E PbO 2  coated Pb or Pb alloy for cathodic protection is formed by anodically polarizing the Pb or Pb alloy, with a solid PbO 2  microelectrode fitted to its surface, in aqueous NaCl or synthetic sea-water e.g. containing 0.5 to 3% W/VNaCl. The Pb alloy may contain 6% Sb or 1% Ag. The cathode may be of mild steel. The anode current density may be 0.5 to 6A/dm<SP>2</SP>. The ratio of area of Pb (alloy) to PbO 2  microelectrode may vary from 10 to 600. The PbO 2  microelectrode may be prepared by electrodepositing PbO 2  from aqueous Pb(N03)2 - Cu(NO 3 ) 2  bath on graphite, steel or Ni substrate, removing the deposit and, if necessary, abrading and/or grinding to desired size and shape, or electro-depositing on masked substrate exposing that portion which equals the size and shape of the microelectrode, and fitting the microelectrode into drilled holes in the Pb or Pb alloy.
Patent GB-666508-A (GB)
Title: Improvements in reservoir pens
IPC: B43K5/18
Filed: 1949-03-10
Abstract: 666,508. Reservoir pens. SIMONI, A. March 10, 1949 [March 18, 1948], No. 6605/49. Class 146 (iii). A reservoir pen of the type having a nib protected by a casing substantially enclosing the nib is characterized in that it comprises a nib 4 having a rear portion 5 of curved trough section supported by a feed bar 3, an intermediate tapered portion 6 inclined towards the longitudinal axis of the pen and a tip portion 7 situated on the pen axis and projecting through an axial bore in the protective casing 8. The casing 8 carries two diametrically opposite reference marks which determine two positions of use of the pen, one position being when the concavity of the nib is towards the writing surface to allow considerable flexing of the nib for usual handwriting and a second position being when the concavity is in the directly opposed direction to limit the flexing of the nib for drawing lines. The Specification as open to inspection under Sect 91 also states that the reference marks may be replaced by a taper cut in the end of the casing to render the back part of the nib visible. This subject-matter does not appear in the Specification as accepted.
Patent GB-557374-A (GB)
Title: Improvements in or relating to supporting internal combustion engines to facilitate adjustment and repair
IPC: B25H1/00
Filed: 1942-05-15
Abstract: 557,374. Mounting engines ; screwj acks. DAVEY, PAXMAN & CO., Ltd., and PAXMAN, E. P. May 15, 1942, No. 6636. [Class 7 (ii)] [ Also in Groups XXVI and XXX] To enable a marine or other engine to be tilted to facilitate adjustment or repair, the engine is provided with devices which cooperate to form a cradle to support the ends of the crankshaft directly or indirectly and means is adapted to be attached to the engine housing for causing it to be partly rotated about a horizontal axis and held in any desired position.- As shown, an engine a driving a pump, generator &c. f through a flexible coupling g is normally supported on stool plates n. The tilting equipment comprises screw jacks h, i adapted to be connected to overhead brackets 1 ... 5 and to triangular offset plates o ... r secured to the engine. To tilt the engine, the coupling g and other connections are disengaged and brackets j, k each embodying a lifting jack are placed under an extension m cf the crankshaft and the casing of the coupling g. The jacks are operated to lift the engine until the stool plates n can be removed, and the plates o ... r are attached. The jack his connected to bracket 1 and plate o and extended to tilt the engine through about 48.5 degrees, Fig. 4. The jack i is then connected to bracket 4 and plate rand extended to tilt the engine to about 97 degrees from its original position. To retain it in this position for repairs &c the jack h is connected to bracket 2 and plate p and the jack i to bracket 5 and plate r. A suitable jack, Fig. 9, comprises a cylinder 6, rotatable by means of handles 13 and fitted with a threaded sleeve 7 engaged by a threaded rod 8 having a bolt 10 for attachment to one of the plates o ... r. The bolt 10 can be engaged by a locking screw 12. The cylinder 6 at its upper end is fixed to an annulus 14 forming with a ring 15 and disc 16 a housing assembled by bolts 17 and rotatable about a spindle 19 having an eye 20 adapted to be secured to one of the overhead brackets 1 ... 5. Thrust bearings 24 are provided. Minor modifications are described, including forms in which trunnions or bearing faces on the ends of the engine crank case or cylinders are engaged by bearing surfaces on the adjustable supporting devices when the engine is to be rotated, and tilting is effected by slings instead of jacks.
Patent GB-108688-A (GB)
Title: Improvements in and connected with the Electrolytic Deposition of Copper from Acid Solutions.
Inventor: STUDT FRANZ EDWARD
IPC: C25C1/12
Filed: 1916-05-10
Abstract: 108,688. Studt, F. E. May 10, 1916. Drawings to Specification. Sulphur dioxide.-Waste dilute sulphuric acid from electrolytic vats in which copper is deposited is concentrated and heated with lump sulphur, carbon, or the like, or a mixture of such substances. Any sulphate of iron, aluminium, &c. present is also decomposed. The gas is passed through condensers to remove moisture and is then liquefied; or about 24 per cent. of the gas may first be absorbed by fresh electrolyte.
Patent GB-569560-A (GB)
Title: An improved sine plate
IPC: G01B5/24
Filed: 1943-04-29
Abstract: 569,560. Sine plates. GRICE, G..J. April 29, 1943,'No. 6747. [Class 97 (iii)] A sine plate comprises a rectangular plate a having a central bush d and, at each corner, a precision cylinder b secured to the plate a by a screw c. The cylinders b are centrally bored and are provided at the lower end with a recess e within which is located a disc g and a ball. foot or castor f.
Patent GB-807691-A (GB)
Title: Improvements in or relating to frequency modulation systems
IPC: H03C3/18
Filed: 1957-03-01
Abstract: 807,691. Frequency modulation; valve oscillator circuits. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. March 1, 1957 [March 6, 1956], No. 6888/57. Classes 40 (5) and 40 (6). A frequency-modulated ultra-high-frequency oscillation of stable carrier frequency in the 450 Mc/s. band is produced by a Colpitts oscillator 5 the inductive branch of whose tuning circuit is constituted by a crystal 1 whose series resonance frequency is just above the centre frequency of the frequency modulation (so that the crystal exhibits capacitive reactance) in series with magnetically biased ferrite core inductor 4.1 whose inductance is varied by a modulating electromagnet 4.4, the U-member 4.2 being a biasing permanent magnet. The crystal is shunted by a resistor 2 to prevent parallel resonant oscillations. A further inductance 3 may be in series with the crystal 1 and modulating inductor 4, or may be omitted or in parallel with inductor 4. The screen grid of tube 5 acts as the anode of a triode oscillator, earthed at radio-frequency potential by a capacitor 10, and the anode circuit is tuned to a harmonic of the generated frequency by an inductance 11 resonating with stray capacitance. A cathode resistor 8 lowers the mutual conductance of valve 5 sufficiently to prevent oscillations at the resonance frequency of the shunt capacitance of crystal 1 and the reactances 3, 6, 7.
Patent GB-270222-A (GB)
Title: Improvements in or relating to television systems and apparatus
IPC: H04N5/208
Filed: 1925-10-21
Abstract: 270,222. Baird, J. L. Oct. 21, 1925. Drawings to Specification. Television; light-sensitive electric devices.-In a television transmitting arrangement employing a light-sensitive cell with means for interrupting the light incident thereon at a frequency such that the duration of the individual signals is not substantially greater than the time lag of the cell, the effects of the cell's inertia are minimized by utilizing for the transmission a current which is the first differential of the output current from the cell. For this purpose. the output current, with or without preliminary amplification, may be supplied to the primary transformer, and the transmission current be taken from the secondary. Alernatively the transmission current may be that obtained by addition of the first differential current to the output current. For this purpose a series resistance in the circuit of the cell may be shunted by a condenser in series with the transmission operating device, or this device may be arranged in parallel with a series inductance in the circuit of the cell, or the device may be arranged in series with the cell and with a high resistance wound inductively with or without an adjustable iron core. Specifications 221,817 and 235,619 are referred to. Reference has been directed by the Comptroller to Specification 235,619.