baber/WOPTO huggingface dataset:
Patent GB-340937-A (GB)
Title: Centrifugal couplings
IPC: F16D3/12
Filed: 1929-09-30
Abstract: 340,937. Rotary-transmission dynamometers. KOHNO, S., 22, Aza Yama, Kadonowaki, Ishinomaki-Machi, Ojika-Gun, Miyagi-Ken, Japan. Sept. 30, 1929, No. 29590. [Class 106 (ii).] In yielding shaft couplings, applicable as transmission dynamometers, of the kind in which relative rotation is resisted by a centrifugal system, one or more pairs of massive links are pivoted to arms on the spaced adjacent ends of the shafts, the links of each pair being pivotally connected at their mid-points, which coincide with their centres of gravity. The arms 2, 21, 3, 31 on the coupled shafts 1, 1<1> are preferably in the form of disc cranks, the links 6, 61, 7, 71, also preferably of disc form, begin pivoted thereto on pins 4, 4<1>, 5, 5<1> and centrally connected together at 10, 11. Holes 8, 81, 9, 9<1> are provided to balance the crank-pin holes. The angular yield of the coupling is positively limited by interference of the " links." By measuring the speed of rotation and angle of lag of the driven shaft, the power transmitted can be accurately calculated from a formula given. The device allows parallel misalignment of the shafts and, due to play in the joints, a certain degree of angular misalignment. A single pair of " links " and crank arms, with preferably adjustable balance-weights, may be used, in which case, unless the effective length of the links is less than that of the crank arms, auxiliary means, such as a positive clutch, is necessary to facilitate starting, due to the small torque-capacity at low speed. Fluctuations in the angle of lag due to gravity effects in this form become negligible at high speed.
Patent GB-736425-A (GB)
Title: Improvements in or relating to cop winding machines
IPC: B65H54/14
Filed: 1952-11-24
Abstract: 736,425. Winding yarn. LOW & CO., Ltd., J. F., and HILL, T. Nov. 9, 1953 [Nov. 24, 1952], No. 29592/52. Class 120(2). A cop-winding machine, having a winding spindle 2 on which the cops 3 are wound, is provided with an oscillating thread traverse guide 1 whose motion is derived from an eccentric 13 driven by elliptical gear wheels 10, 11 from the driving shaft 4, the relation of the wheels 10, 11 being such that the major axis of the wheel 10 is collinear with the minor axis of the wheel 11 when the guide 1 is at the ends of its traverse, so as to give a quick-return motion at each end of the chase and a minimum speed of traverse mid-way between the ends of the chase. The motion of the eccentric-carrying shaft 12 is transmitted by a strap 131 and linkage 14, 15, 17 to the guide 1.
Patent GB-1068762-A (GB)
Title: Improvements in and relating to workpiece holders
Inventor: PARDY STANLEY GEORGE
Filed: 1963-07-26
Abstract: 1,068,762. Machine tool details. CUTLERY & ALLIED TRADES RESEARCHASSOCIATION. July 24, 1964 [July 26, 1963], No. 29700/63. Headings B3B and B3T. A rotatable work-holder comprises a closed hydraulic system operating two workpiece-engaging members in, for instance, a bolster-turning machine which comprises a motor 2 to rotate the work 45, 46 and a tool post 3. The holder has a fixed jaw 9 and a movable jaw 10 biased to an open position by springs 16 when a piston 39, which may be double-acting, is actuated by compressed air. The piston 39 moves a head 37 to draw a sleeve 24 rearwardly against the adjustable pressure of springs 25, 26, thus relieving the pressure in the closed circuit 15, 14, 13 to the jaw 10. In a modification, a hollow spindle (50), Fig. 3 (not shown), carries a cylindermounting plate (51) and a screwed chuck-mounting plate (51) and a screwed chuckmounting plate (53). In a further modification, Fig. 5 (not shown), the spindle is hollow to receive a workpiece of great length and both jaws (60) are movable to centre the work.
Patent GB-857884-A (GB)
Title: Improvements in the preparation of metal chlorides
IPC: C01G25/04
Filed: 1958-09-17
Abstract: Metal chlorides are prepared by chlorinating metal-bearing materials in the presence of a boron oxide, preferably boric oxide, or an inorganic boron compound which under the chlorination condition gives a boron oxide, for example sodium borate and borosilicates.  The preferred chlorinating agent is chlorine.  The metal-bearing material is preferably a metal-silicate type ore, in a fine state of division, and preferably has added to it carbon, preferably of the same particle size as the ore, and preferably in an amount sufficient to combine with all the oxygen theoretically liberated by the chlorination.  The solid material is preferably in the form of a bed through which the chlorinating gas, which is preferably mixed with an inert gas, passes, and which may be fluidised.  The metal-bearing materials which may be chlorinated by the process of the invention include aluminium silicate ores, beryllium-aluminium silicate ores, for example beryl, siliceous nickel ores, uranium calcium silicate ores, thorite, and especially zirconium silicate ores, especially zircon sands or zirkite.  In the chlorination of zirconium containing materials the boron oxide is preferably present in an amount of 0.2-5% by weight of the mixture and the chlorination is effected at 600 DEG -900 DEG C.
Patent GB-1506858-A (GB)
Title: Frequency sweep circuit
IPC: H03B28/00
Filed: 1974-11-26
Abstract: 1506858 Waveform generation IRD MECHANALYSIS Inc 26 Nov 1974 [30 Nov 1973] 29743/77 Divided out of 1506856 Heading H3H A digital sweep oscillator comprises two electron gates 242, 243 in series with an RC circuit, generating square wave clock signals whose frequency is determined by the resistor selected by switch 160I. The pulses are fed through a counter chain 249-252 to a one-shot multivibrator 260 to charge a capacitor 263 in uniform steps. This stepping voltage is fed to an amplifier 269 having transistor 270 in its feedback circuit, whereby the feedback current is also stepped and is proportional to each step of the voltage on capacitor 263. The current is obtained from a selected capacitor 271 and raises the voltage at junction 273 until a unijunction transistor 274 breaks down and discharges capacitor 271. This is cyclically repeated at a rate determined by the feedback current, so that the frequency of the signal at 273 is proportional to each level of the stepping voltage on capacitor 263. The minimum frequency produced is determined by a knob 29 which selects the appropriate resistor combination in switch bank 29A. The maximum frequency is determined by a knob 30 which selects the appropriate output from counters 249-252. When this count is reached a gate 245 is opened to stop clock pulses reading multivibrator 260. The overall frequency range is selected by ganged switches 160I, 160J.
Patent GB-299391-A (GB)
Title: Improvements in steering devices of endless track vehicles
IPC: B62D11/20
Filed: 1928-10-15
Abstract: 299,391. L³becker Maschinenbau-Ges. Oct. 25, 1927, [Convention date]. Adjusting bogies for steering.-An endless-track vehicle is provided with one or more stecrable truck-frames a pivoted at d for steering, the point f at which the steering gear acts on the frame being in line with the horizontal pivot b about which the frame can rock when passing over uneven ground. In the construction shown, two frames a, a<1> are steered by worm gear h, screwshafts g, g<1>, and nuts f, f<1>. The gear h may be driven by an electric motor. The truck frames are pivoted at b in forks c and are formed with arms e on which the steering gear acts.
Patent GB-921062-A (GB)
Title: Process for the production of vinyl esters
Inventor: GASSER CLIVE GORDON
IPC: C07C/
Filed: 1960-08-30
Abstract: A vinyl ester of a higher carboxylic acid having at least C5 is obtained by heating a mixture of such acid and a lower carboxylic acid having less than C5 with acetylene and a catalyst of a zinc salt of a lower carboxylic acid.  Specified higher acids are valeric, caproic, caprylic, capric, lauric, myristic, palmitic, stearic or benzoic, whilst the preferred lower acid is acetic.  The catalyst may be supported.  In examples, the laurate, caprylate and benzoate are prepared.
Patent GB-883240-A (GB)
Title: Process for the production of suppositories
Filed: 1959-09-02
Abstract: Alcohols for use in the production of suppositories (see Group VI) are prepared by condensing alcohols containing at least 14 carbon atoms according to the Guerbet condensation.  The condensation is carried out at temperatures over 150 DEG C. in the presence of basic condensing agents especially alkali and copper or copper compounds or nickel or zinc and their compounds, with continuous removal of the water formed during the reaction.  The condensation takes place as follows: <FORM:0883240/IV (b)/1> R and R1 being aliphatic residues.ALSO:Suppositories are produced from a base material and an active pharmaceutical substance, the base material being an alcohol derived by the Guerbet condensation from one or more alcohols having at least 14 carbon atoms.  If the starting alcohols have the formulae RCH2OH and R1CH2CH2OH the base material will have the formula <FORM:0883240/VI/1> wherein R and R1 are the same or different aliphatic residues.  The suppositories may, in addition to the base and active substance, contain up to 50% by weight of water, up to 55% of glycerin or up to 30% of ethyl alcohol.  Emulsifying agents, e.g. polyethoxylation products of fatty or wax alcohols or fatty acids; esters of fatty acids with polyhydric alcohols or ethers of fatty or wax alcohols with polyhydric alcohols; or fatty or wax alcohols, may be added to the suppositories.
Patent GB-534721-A (GB)
Title: Improvements in holders for rolls of sheet material
IPC: A47K10/40
Filed: 1939-11-13
Abstract: 534,721. Roll holders. WITHERS (WALSALL), Ltd., and WALTERS, J. M. Nov. 13, 1939, No. 29925. [Class 18] The bar or roller 13 upon which the roll of paper is mounted is locked in position by pins 22, reduced portions 25 of which are engaged by spring catches 20 access to which can be obtained only when the roll is exhausted and the usual central cardboard tube has been cut away. One pin 22 only need be employed, the other end of the roller being provided with a spigot extending into the supporting bracket 12, or alternatively, the bracket 12 having a trunnion extending into a hole in the roller.
Patent GB-1237452-A (GB)
Title: Ammonia synthesis
Inventor: NICKLIN THOMAS
IPC: C01C1/04
Filed: 1968-06-24
Abstract: 1,237,452. Ammonia synthesis catalysts. GAS COUNCIL. 23 June, 1969 [24 June, 1968], No. 30054/68. Heading B1E. [Also in Division C1] Haber synthesis catalysts contain at least 80% Fe or an oxide thereof, at least 1% U oxide/usually UO 2 /and at least 1% of an oxide of Th or a precursor therefor. Additionally the catalyst may contain K and Al 2 O 3 . Preparation is conventional e.g. decomposition of metallic nitrates at 800C followed by reduction.
Patent GB-1091316-A (GB)
Title: Tubular condenser of variable capacitance
IPC: F16H1/20
Filed: 1966-07-05
Abstract: 1,091,316. Variable capacitors. CARL-ZEISSSTIFTUNG, [trading as JENAER GLASWERK SCHOTT & GEN]. July 5, 1966 [July 14, 1965], No. 30074/66. Heading H1M. Tongues 7 on piston 3 which is the movable electrode of the capacitor shown form a sliding electrical connection between the piston and sleeve 6 of the flanged support guiding the spindle of the piston. Tongues 7 may slide in grooves and prevent rotation of the piston Figs. 3 and 4 (not shown) illustrate alternative means of providing sliding contact.
Patent GB-226235-A (GB)
Title: New or improved elevator conveyor mechanism for lifting skins from lime pits and other treatment pits
IPC: B65G17/06
Filed: 1924-12-15
Abstract: 226,235. Soc. Anon. Etablissements Reynier, and Szmukler, C. Dec. 15, 1923, [Convention date]. Directing and adjustably supporting portable inverted harrow and rake endless chain elevators. -The framework of an elevator for lifting skins from lime and other treatment pits is substantially L-shaped and is pivoted at m. The pins g which engage the skins are rounded and may be fitted with rubber guards. When it is desired to lower the elevator, the driving shaft b is coupled to pinions k which mesh with toothed sectors l concentric with the pivot m.
Patent GB-1532020-A (GB)
Title: High pressure pumping apparatus
IPC: F16H43/00
Filed: 1976-07-20
Abstract: 1532020 Reciprocating pumps and motors MASCHINENFABRIK RUDOLF HAUSHERR & SOHNE KG 20 July 1976 [21 May 1976] 30178/76 Heading F1A A high-pressure pump for non-greasy liquids, e.g. for use in a mine, comprises pumping pistons 29, 30 reciprocated by a motor piston 23 actuated by hydraulic fluid supplied by an axial piston pump 2 via a distributing valve 5, the pump 2 having a pressure regulator and a stroke limiter which are manually adjustable, Fig. 1 (not shown). An electric motor 1 drives pump 2 through a coupling 3 incorporating a fan for a cooler for the pump circuit. Valve 5 is reversed at the end of each stroke of piston 23 by hydraulic pressure controlled by piston grooves 33, valve control piston 20 being continuously under pressure and control piston 21 being alternately pressurized and relieved of pressure.
Patent GB-876325-A (GB)
Title: Improvements in or relating to high pressure stop valves
IPC: F16K3/316
Filed: 1957-09-26
Abstract: 876,325. Valves. VAN AKEN, G. M. J. Sept. 26, 1957 [Sept. 28, 1956], No. 30264/57. Class 135. A stop valve comprises a cylindrical casing 1 having diametrically opposed inlet and outlet ports 2, 3 and houses a substantially cylindrical fabricated closure member 10, 11, 33, 36, 37 actuated by a screwed spindle 5 rotatably mounted in the casing cap 49 and carrying an inlet sealing means 41 and actuating mechanism therefore and a coaxial sealing disc 4 seating at 7 when the valve is opened to seal off the valve operating mechanism. The closure member is built up of two parts, the lower part comprising disc 4 attached to the pipe 10 which intersects the cylindrical portion 11 guided in the casing, and provides a through way in the open position of the valve, and the upper actuating part comprising two cylindrical members 33, 37 attached to each side of a disc 34 and mounted in the cylindrical portion 36, the whole being bolted to the disc 4. The closure member is actuated by rotation of the screwed spindle 5 engaging the thread bore of spur gear 15, which is temporarily locked. In the closed position of the valve shown additional sealing is provided by a hollow piston 41 engaging a seating 43 in the inlet. The piston is actuated via rods 19, 20 which pass through seals in disc 34 and engage a bridge piece 21 which rigidly carries a screwed spindle 26 engaging screwed sleeve of bevel gear 22 rotatably mounted on a plate 29 held by bolts 31 to a shoulder 32 in the closure member. Bevel gear 22 is driven by bevel gear 23 mounted on a spindle carrying spur gear 24 driven by spur gear 15, the spur gears being mounted in a box 16 attached to the closure member. In operation a block 48 on the bridge piece laterally abuts spindle 5 protruding into a cylinder 33 when the closure member is moved axially up the spindle to open the valve and prevents movement of the sealing piston 41. When the closure member engages stops 1<SP>1</SP> in the lower closed position, the friction of the screwed spindle causes the gears to turn and move piston 41 into sealing position and block 48 across the end of spindle 5 or, in the reverse direction, the lower end face of spindle 5 engages the block 48 to prevent upward movement of the valve and the gears cause the piston and block 48 to move out of engagement before the closure member moves axially upwards. Piston 41 has a sieve 46 and holes 47 in the crown 39 to prevent the build-up of pressure. The closure member may be partially balanced by admitting pressure through the apertures 60, 61 in the casing. In a modification plate 29 may be rigidly attached to the closure member and disc 34 held by tie bolts. Piston 41 may be replaced by a similar member fitted with three angularly spaced pawls for engaging behind and removing the seating 43.
Patent GB-1214064-A (GB)
Title: Improvements in or relating to cathode ray tube display equipments
Inventor: ELLIS ALFRED BRIAN EDWIN
IPC: G09G1/28
Filed: 1968-06-26
Abstract: 1,214,064. Cathode-ray tube displays. MARCONI CO. Ltd. 13 May, 1969 [26 June, 1968], No. 30516/68. Heading H4T. In a graphic display equipment (Fig. 1) e.g. for computers, a CRT screen has grouped plural vertical phosphor strips T 2 , T 3 , T 4  (e.g. for colour rendition) and plural conductive index strips T 1  interposed between groups; the tube having horizontal deflection coils T 6 , auxiliary horizontal deflection plates T 7 , and gun T 5 , with vertical deflection system (not shown). A signal source (e.g. computer controlled) intensity controls the beam by gun T 5 , and controls horizontal deflection over coils T 6  with signals of any instantaneous value or polarity up to a given limit. To reduce misregistration, the horizontal deflection signals are differentiated at 4 to rate of change signals which control reference source 5 to produce output signal of preset magnitude representing maximum rate of change and polarity opposed to the input, which is periodically earthed by electronic switch 6 to a square wave, combined subtractively at 7, 8 with the differentiator output to a difference square wave, integrated and polarity inverted at integrator 9, across which is periodically operated electronic shortcircuiting switch 10 discharging the integrator. Traversal of the CR beam over an index strip T 1  generates a pulse triggering a staircase generator 11 producing a stepped waveform numerically correspondent to the number of phosphor strips in a group, combined with the output of integrator 9 in subtractor 12, 13, which is inverted at 14 and applied to the auxiliary deflection plates T 7 , whereby the resultant deflection moves the beam across successive phosphors in a series of jumps from strip to strip at a mean rate representing the rate of change of the horizontal deflection signals, to dwell on each strip in turn. The index pulses also operate e.g. monostable pulse generator 15 to pulse switch 6, while the staircase waveform generator 11 drives a differentiating circuit (not shown) to trigger pulse generator 16 on the trailing edge of the staircase to pulse switch 10 and to blank the CR tube T. The device may be applied to black and white displays. The several circuit waveforms are illustrated (Fig. 2, not shown).
Patent GB-1489538-A (GB)
Title: Primary or secondary cells or batteries
IPC: H01M50/491
Filed: 1976-07-22
Abstract: 1489538 Sealed cells ESB Inc 22 July 1976 30526/76 Heading H1B A cell (Fig. 5) comprises a positive electrode layer 20, a negative electrode layer 30 and an electrolyte permeable separator layer 40 between the two electrodes, the separator consisting of an electrically non-conductive, inherently sealable (as defined) polymeric film material which extends beyond the periphery of the cell electrode layers, the perimeter of the separator layer being bonded between two further layers 80, 90 these layers being inert, impervious to the electrolyte and electrically conductive, to form a liquid impervious seal around the cell. A battery (Fig. 2, not shown), may be formed from these cells by placing an electrically conductive, electrolyte impervious layer (50A, 50B and 50C) between adjacent cells each intercell separator being extended beyond the cell periphery and sealed thereat to form part of a peripheral, liquid impervious seal at the edge of the battery. Suitable inherently sealable materials (defined as polymeric films capable of being sealed to superposed surfaces without application or addition of separate adhesive material) include polyethylene, ionomers, nylons, PVC, polyvinylidene chloride, yielding fibres by blown-film techniques or calendering; thermoplastic and theremoset resins along with thermosetting materials, e.g. phenolics, polyurethane film, rubbers, epoxy films and silicones. The polymeric film material of the separator may be laminated or homogeneous. In a battery the separator layers of the cells may extend outwardly beyond the seal between the separator and the further layers and sealed thereat to provide a second liquid impervious seal.
Patent GB-197269-A (GB)
Title: An improved box or tin for blacking, ointments and the like
IPC: B65D41/04
Filed: 1922-11-09
Abstract: 197,269. Weddle, J. G. Nov. 9, 1922. Cap-stoppers, screw.- The cover and body part of a box or tin for blacking &c. are provided with engaging means consisting of screw-threads B extending throughout the whole depth of the sides of the parts. Both parts may be milled to facilitate handling. Specifications 7656/85, [Class 66, Hollow-ware], and 29887/10 are referred to.
Patent GB-196232-A (GB)
Title: Improvements in and relating to cigarette packets
IPC: B65D85/10
Filed: 1922-11-09
Abstract: 196,232. Foggett, J. S. Nov. 9, 1922. No Patent granted (Sealing fee not paid). Matches, boxes specially designed for; fittings, internal.-The intermediate part of the flap C of the slide A of a cigarette carton is provided with wafer pasteboard or wood matches B secured thereto by gum or a staple F which also secures an apron E to cover the matches and prevent them from contacting with the cigarettes when the carton is closed.
Patent GB-445435-A (GB)
Title: Improvements in or relating to liquid measuring and dispensing apparatus
IPC: B67D7/30
Filed: 1934-10-26
Abstract: 445,435. Dispensing liquid fuel &c. AVERY-HARDOLL, Ltd., and FRASER, J., Avery House, Clerkenwell Green, London. Oct. 26, 1934, No. 30696. [Class 116] Liquid measuring and dispensing apparatus of the flow-meter type, comprising means which effect a two-stage control of the delivery of an automatically predetermined quantity of liquid, is provided with means for giving an advance to the indicating mechanism, at the end of the first stage of delivery, in order to compensate for hose dilatation. The apparatus, which is described particularly with reference to the liquid dispensing apparatus described in Specification 426,267 comprises a rod 4 coupled to a lever 1 to which is linked the pin 2 which moves into an aperture in the setting wheel at the conclusion of the first stage of delivery. The rod 4 actuates, through a spring 12, a bell-crank 6, the lower arm of which engages an adjustable collar 7 on a slidable shaft 8 coupling the flow meter (not shown) to the indicating - mechanism drive - shaft 10. The coupling between the shafts 8 and 10 is by means of pins 8<a> loosely fitting in inclined slots 10<a> so that on the lifting of the shaft 8, relative angular movement of the shafts 8 and 10 occurs and thus advances the indicating mechanism. A stop 13 to limit the movement of the bell crank 6 is provided. In a modification (not shown), the shaft 8 may be raised by the differential fluid pressure on the two sides of the valve effecting the cutting-off of the first stage of delivery.