baber/WOPTO huggingface dataset:
Patent GB-1028131-A (GB)
Title: Improvements in or relating to uniselectors
Inventor: NICKOLS IAN
IPC: H01H67/06
Filed: 1964-01-17
Abstract: 1,028,131. Electric synchronous movements. IAN NICKOLS Ltd. Jan. 18, 1965 [Jan. 17, 1964], No. 2144/64. Heading H2L. Uniselectors to be operated in synchronism comprise magnetizing coils 1, 2, 3, associated with contact breakers 4, 5, 6, respectively, which open when the coils are energized. When a signal is applied to terminal 11, relay 9 is energized through contact breakers 4, 5, 6, so that the coils 1, 2, 3 are energized through contact 10 and the contact breakers 4, 5, 6 are connected in parallel through contacts 7 and 8. In order that the uniselectors may step, the current supplied to the coils 1, 2, 3 is interrupted only when the last of the contact breakers 4, 5, 6 has opened. The relay 9 is then de-energized to re-close the contact breakers, the sweeper arms of the uniselectors being moved to a new selection of output terminals. The next cycle of operation cannot begin, however, until the slowest uniselector has stepped and the associated circuit breaker has closed, since the relay 9 is not energized until the circuit is completed through the contact breakers 4, 5, 6 in series. In the case of an even number of uniselectors, a dummy uniselector is provided or an extra contact breaker and coil.
Patent GB-1393642-A (GB)
Title: Transport system
IPC: H02K41/02
Filed: 1973-01-16
Abstract: 1393642 Transport system KRAUSSMAFFEI AG 16 Jan 1973 [18 Jan 1972] 2146/73 Heading B7L A transport system comprises a vehicle 13 electromagnetically guided and preferably levitated with respect to a track 17 by means of cooperating vehicle-borne electromagnet rows and track-borne armature rails 1, the rails 1 being substantially U-shaped with at least the free ends of their shanks forming vertically disposed pole pieces 4 and the vehicle electromagnets comprising substantially U-shaped cores 2, 3 with exciting windings 16 and vertically disposed polepieces 5, 6 which define airgaps with the polepieces 4 of the armature rails. The polepieces 5, 6 are mutually offset to the right and left to provide guidance and adjacent cores 2, 3 are interconnected by non-magnetic 7, 8, 11, 12. It is stated that the U-profile of the armature rails and magnetic cores lends stiffness to the track and vehicle respectively. The vehicle may be supported between the armature rails or may straddle the latter. The rails 1 may be parts of a steel channel with concrete reinforcement or of a closed track member formed entirely of steel. In one embodiment the armature rails are sufficiently stiff to be supported by spaced pylons with no additional reinforcement. Instead of the U of the rails 1 and magnetic cores 2, 3 being generally horizontal as shown they may be vertically arranged. While the electromagnetic engagement between the vehicle and rails serves also to suspend the vehicle in the embodiment shown, an air cushion may be used for this function with the electromagnetic forces serving only to guide the vehicle.
Patent GB-413737-A (GB)
Title: Improvements in or relating to mechanically-operating control apparatus
IPC: G05B6/05
Filed: 1933-01-23
Abstract: 413,737. Fluid - actuated valves. WARING, A. H., 18, Cleveland Avenue, Norton-on-Tees. Jan. 23, 1933, No. 2200. [Class 135.] In control apparatus having a pilot valve 11 which is responsive to changes in a working valve such as temperature, pressure, or speed and controls the flow to a control engine 14 operating a regulator for correcting the change in the working valve, the rapidity of response of the control engine is increased by a device comprising a supplementary valve 22 which by operative connections is caused to move in accordance with the speed of the pilot valve and in such a way as to increase the flow tc the control engine when the pilot valve leaves its standard position and to decrease the flow as it returns. As applied to the control of a flash boiler, a piston pilot valve 11, the rod 12 of which is connected to a device responsive to the steam temperature, controls the pressure fluid inlet and outlet ports 19, 20 and a port 21 leading to the control piston 14, the rod 15 of which actuates the regulator. The supplementary valve, in the form of a ported sleeve 22, is connected by a lever and links to a doubleacting piston 40 normally maintained centrally by springs. This piston 40 is subject to the pressure difference across a constriction 31 in a pipe 30. The magnitude of this pressure difference depends upon the speed of a piston valve 24 connected to the pilot valve 11 and therefore upon the speed of the pilot valve. At slow speeds, the pressure fluid from an inlet port 27 passes the constriction and operates a piston 33 connected by a lever and links to a sleeve valve 26 which follows up the piston valve 24 and so tends to cancel the flow to the constriction. At higher speeds, this follow-up action is not rapid enough to keep pace with the valve 24, and pressure difference across the constriction causes the piston 40 to operate the supplementary valve 22 so as to increase the flow to or from the control piston 14. The inlet ports 19, 27 and the outlet ports 20, 28 are connected respectively to the pressure and suction ports of a continuously driven gear pump working in oil. The pistons 14, 33 are provided with return springs.
Patent GB-576349-A (GB)
Title: Improvements in gramophone pickups
IPC: H04R11/08
Filed: 1944-02-07
Abstract: 576,349. Gramophone pick-ups. RADIO GRAMOPHONE DEVELOPMENT CO., Ltd., and BOLUS, S. T. Feb. 7, 1944, No. 2213. [Class 40 (iv)] In a gramophone pick-up of the moving-coil type, the coil, defined as "flat," with opposite coplanar sides located in the gap of the magnetic system, lies above the axis about which it is oscillated by the needle and with its own axis substantially vertical, and has two sides each of which extends approximately at right angles to its arc of movement and lies in a strong magnetic field which is approximately at right angles to it and to its arc of movement and which is of opposite direction to that of the field in which lies the opposite side of the coil. The magnetic system comprises a U-shaped magnet 1 with polepieces 2 having surfaces 8 converging to form with a plate 9 of magnetic material and a plate 4 of non-magnetic material a narrow gap in which the coil 19 is oscillated. The member 13 carrying the coil 19 and the needle 16 has trunnions 14 enclosed in rubber sleeves 15 mounted in bearings 12 formed in the plate 9 and in a base-plate 5. In a modification, Fig. 5, the coil 19 is curved in crosssection, the plate 9 of magnetic material is cylindrical and the lower surfaces of the polepieces 2 are chamfered at 20 to provide a uniform gap. The coil carrier may be formed by a celluloid sheet with concave edges and rounded corners. According to the Provisional Specification, the U-shaped magnet is replaced by bar magnets.
Patent GB-1057012-A (GB)
Title: Multi-range weighing apparatus and method
IPC: G01G1/34
Filed: 1964-01-17
Abstract: 1, 057,012. Weighing apparatus. HOWE RICHARDSON SCALE CO. Jan. 17, 1964 [April 1, 1963], No. 2239/64. Heading G1W. In a multi-range weighing apparatus, a main beam 11 (Fig. 3) comprising three levers 13, 14, 15 pivoted at fulcrum 16, carries a counterweight 21 on one side of the fulcrum and on the other side a support for variably applied range weights 39, 41, 42 and a hopper for material to be weighed out. The weight of the counterweight is equal to the total weight of all range weights. The range weights are connected by lost motion links 44 upstanding therefrom, to weight lifting levers 47 journalled on a fixed arbor 49 and raised by a pneumatic cylinder assembly 62 to lift the range weights from a support plate 31 on the beam. A weigh hopper (not shown) is suspended by hangers 33 secured to the plate 31. The beam is linked to a conventional scale mechanism S responsive to its deviation and having a resistant. OPERATION. With all the range weights and the fixed counterweight on the beam and no material in the hopper the scale mechanism will indicate zero. Assuming weighing ranges of 0-20, 20-40, 40-60, 60-80 1bs. wt. the counterweight is 60 1bs. weight and each range weight is 20 lbs. wt. Supposing 20 1bs. wt. of material is to be added to the hopper. All three range weights are applied to the beam and material is added to the hopper until a pointer P on the scale indicates 20 1b. Assuming a second ingredient of 20 lbs. wt. is to be added, one range weight is removed and the scale pointer thereby returns to zero the beam being restored to equilibrium. The second ingredient is then added to the hopper until the scale reads 20 lbs. The same procedure is effected for a third ingredient, in each case accumulated load is substituted for a range weight removed.
Patent GB-796639-A (GB)
Title: Improvements in and relating to vulcanisation
IPC: C08L9/00
Filed: 1956-01-24
Abstract: 3,5-Diisopropylphenol is prepared by heating 1,3,5-triisopropylbenzene hydroperoxide and 1,3,5-triisopropylbenzene in the presence of toluene sulphonic acid (Example 1), and m-ethylphenol is reacted with isopropyl chloride (Example 2) and 2-chlorobutane (Example 3) in the presence of ethylene dichloride and aluminium chloride to give 3-ethyl-5-isopropyl-phenol and 3-ethyl-5-sec., butylphenol respectively.  Specification 772,527, [Group IV (a)], is referred to.ALSO:Butadiene polymers and copolymers of butadiene with styrene and acrylonitrile are vulcanized by heating with the reaction product of at least 1.2 mol. of formaldehyde with 1 mol. of a phenol of the form <FORM:0796639/IV (a)/1> where R and R1 are alkyl groups containing collectively at least 4 carbon atoms. Specified phenols are 3,5-diisopropylphenol, 3-ethyl-5-isopropylphenol and 3-ethyl-5-sec-butylphenol.  The vulcanizing agents may be prepared by heating the phenol with excess formaldehyde, e.g. in methanol solution, in the presence of sodium or potassium hydroxide at temperatures up to the boiling-point of the reaction mixture for a time depending on the molecular weight desired.  The product may be neutralized with acetic acid, washed and dried, and may be heated to yield resins by the loss of water or water and formaldehyde.  The vulcanizing agents may be incorporated in the polymers by milling, optionally with fillers, e.g. carbon black, zinc oxide, magnesium carbonate, calcium silicate, whiting, hard clays and silica, pigments, plasticizers, antioxidants and conventional vulcanizing ingredients, e.g. sulphur and N - cyclohexyl - 2 - benzothiazylsulphenamide.  When the breakdown temperature is high the vulcanizing agents may be added after the other ingredients to avoid premature vulcanization.  Specification 772,527 is referred to.
Patent GB-208044-A (GB)
Title: Pudding cloth
IPC: A47J43/20
Filed: 1923-01-25
Abstract: 208,044. Lovett, H. Jan. 25, 1923. Addition to 185,049. Pudding-cloths.-A pudding-cloth according to the parent Specification is modified by the provision of one binding cord instead of two. The single cord D is threaded through the eyelet-holes C with the free ends arranged at one end of one of the lifting handles B, the threading at the other end of this handle being varied in the manner shown and the cord D being, at this point, knotted or secured to the fabric of the cloth.
Patent GB-1012275-A (GB)
Title: Improvements in or relating to yarn spinning and dyeing
Inventor: ORAM JOHN ANDERSON
IPC: D06B5/16
Filed: 1963-01-18
Abstract: 1,012,275. Textile treating apparatus. CASTROL PLASTICS Ltd. April 20, 1964 [Jan 18, 1963; Nov 14,1963], No. 2299/63. Heading D1L [Also in Division B8] In a method of spinning and dyeing yarn, yarn is spun in a ring spinning machine on to a fluted ring tube and, in subsequently dyeing the yarn, dye is forced through the yarn and along the channels formed by the flutes and the covering of yarn over the flutes. The tubes may be made of sheet metal e.g. stainless steel or of plastics material. In the arrangement shown after yarn 9 has been spun on to a fluted tube in conventional manner the tube with the yarn thereon is mounted between cups 13, 14 in a tank 10. The latter has a duct 11 beneath it and a pump 12 circulates dye from duct 11 to the tank 10, from which the dye returns to the duct 11 through the yarn 9 and along the flutes in the tube (not visible in Fig. 3.)
Patent GB-1182385-A (GB)
Title: Finishing Attachment for Road Surfacing Machines
IPC: E01C19/40
Filed: 1968-01-16
Abstract: 1,182,385. Road surface levelling and compacting. KLAUS-GERD HOES. [trading as FIRMA KLAUS-GERD HOES]. 16 Jan., 1968 [16 Jan., 1967; 15 Nov., 1967], No. 2345/ 68. Heading E1G. A levelling and compacting attachment for machines laying concrete or asphalt comprises a trailing shoe 11 riding on the alreadycompacted material, an inclined tamping plate 8 vibrated by adjustable out-of-balance masses 14, and a vertically-adjustable spreader blade 7 pivoted on the shoe 11. As shown the shoe 11 and tamping plate 8 are integral. In a modification a separate inclined tamping plate is resiliently suspended from the pivoted arms carrying the spreader blade.
Patent GB-547297-A (GB)
Title: An improved lock for rotatable elements
IPC: H04B15/02
Filed: 1941-02-20
Abstract: 547,297. Locking nuts. CARRINGTON, C. M., PICKETT, W. J., and K. L. G. SPARKING PLUGS, Ltd. Feb. 20, 1941, No. 2346. [Class 89 (i)] Means for locking rotatable members such as nuts are.described with reference to locking the screening for the sparking plugs of internal combustion engines. Nuts 10 secure bends 12 to the sparking plugs and nuts 14 form a connection with the screening on the leads. The nuts have tubular extensions 16 notched at 17 for spanner engagement. Locking is effected by a strip 18 with downturned ends 19 notched to engage over the walls of the extensions 16 and to admit a wedging pin 22 that may :be roughened. An englargement 24 in the centre of the pin is tapped for a tightening screw 25 itself locked by a spring washer 26.
Patent GB-739254-A (GB)
Title: Improvements in or relating to expansible bracelets
IPC: A44C5/06
Filed: 1954-01-26
Abstract: 739,254. Bracelets. RIVO AKT.-GES. BIJOUTERIE UND METALLWARENFABRIK. Jan. 26, 1954 [Aug. 24, 1953], No. 2381/54. Class 43. An expansible bracelet of the lazy-tongs type comprises a plurality of articulated scissors units each formed of three elongated members, viz. a lower member 12, Fig. 5, intermediate member 11, and upper or cover member 10, the lower member being provided with a central pin 7 seated, in a recess 31 therein and surrounded by a coil spring 28 which has one end 30 in abutment with the wall of the recess and the other end arranged to engage an abutment 15 or 16 on the upper surface of the intermediate member 11 when the latter is positioned so that a central aperture 14 receives the pin 7 and spring 28, the two members being held together by riveting the end of the pin 7 over a washer 27. Each unit is articulated with similar adjacent units by end pins 4, 5 on the lower member 12 engaging within holes 8, 9 in the intermediate members 11 of respective adjacent units. The pins 4, 5 are riveted over, as shown at 33, 34, Fig. 4, and the cover member 10 is fixed in position by pins 25, 26 which extend downwardly from it into apertures 17, 18 in the intermediate member 11. The upper surface of the cover member 10 is slightly convex, and its lower surface is recessed to co-operate with the elements of the members 11 and 12 beneath it. The end scissors units of the bracelet are each secured by a rivet 37 to a flange 2 provided on an attachment member 1 by means of which the respective ends of the bracelet may be fastened to the ears on a watch case. The units may be made of a light metal, such as aluminium, which may be coloured.
Patent GB-773589-A (GB)
Title: Method and apparatus for sieving solid and liquid material
IPC: B07B1/34
Filed: 1954-01-26
Abstract: 773,589. Sifting apparatus. RHEWUM RHEINISCHE WERKZEUG-UND METALLWARENFABRIK GES. Jan. 26, 1954 [Jan. 26, 1953; June 19, 1953], No. 2429/54. Class 117 A sieve gauze 1 on a sieve frame is acted upon at points 6 distributed over its surface by a number of electromagnetic vibrators 7 which produce at each such point a sinusoidal oscillation, upon which oscillations of higher audible frequencies are superposed. Material passing through the gauze is received in a collector, and the remainder passes to an outlet at one end of the gauze. In Fig. 3 the vibrators operating in the middle line of the gauze have a phase displacement of 180 degrees, with respect to the remainder. By the separate regulation of individual vibrators the amplitude of movement of different parts of the gauze surface may be varied. In Figs. 9 and 10 the vibrator comprises a vibrator bar 5 which is connected to the gauze 1 and passes between the poles of an electromagnet 9 and connects with an armature 10 supported by springs 11 secured to the vibrator casing. A single phase A.C. supply to the electromagnet produces a sinusoidal oscillation of the armature and bar, the magnitude of which is limited by a stop on one or both sides of the armature. Such stoppage sets up the higher audible frequency oscillations which are superposed upon the main sinusoidal oscillations. In the vibrator shown the pole pieces constitute a stop limiting downward armature movement, and the vibrator casing limits armature upward movement. In an alternative construction the armature is arranged beneath the pole pieces and is similarly supported by springs. Fig. 13 shows multi-sieving apparatus comprising sieve units c, d, e &c. provided with a number of vibrators such as 7 each incorporating stops which are adjustable by a lever 13. Current supply to the vibrators is adjustable by a resistance 14 and an on-off switch 15 is provided. Vibrator bars 5 are connected to the sieve gauzes and are surrounded by distance tubes 16. A clamp 18 presses on a lid 19 on the upper sieve unit and braces the assembly. Each unit has an outlet for material incapable of passing through its gauze and the gauze of the lower units progressively diminish in mesh size. In Fig. 14 separate sieve units 21 with vibrators 7 are mounted on rollers 22 in a stand 20; their inclinations are adjustable by devices 23 and each unit has a discharge outlet 24. A supply hopper 26 is provided. -
Patent GB-556272-A (GB)
Title: Improvements in or relating to abrasive articles and their manufacture
IPC: C08L3/00
Filed: 1942-02-24
Abstract: 556,272. Abrasive articles. CARBORUNDUM CO. Feb. 24, 1942, No. 2440. Convention date, March 1, 1941. [Class 70] In making abrasive articles such as grinding wheels in which rubber is used as the bonding medium, cohesion between the rubber and the abrasive is increased by admixture of boric oxide, boric acid, vanadium oxide, chromium sulphate, or the boroaluminate described in U.S.A. Specification 2,118,143. The substance may be added to the rubber mix or the abrasive may be coated with a mixture of the substance and an adhesive and the coated abrasive added to the rubber. As adhesives may be used synthetic resins, natural resins such as rosin, shellac or copal, or synthetic rubber-like products such as polymers of butadiene or chlorobutadiene, organic polysulphides, glue, rubber or modified rubber.
Patent GB-1164532-A (GB)
Title: Purification of Synthetic Alcohol
IPC: C07C29/74
Filed: 1967-01-17
Abstract: 1,164,532. Alcohol purification. NATIONAL DISTILLERS & CHEMICAL CORP. 17 Jan., 1967 [17 Jan., 1966], No. 2487/67. Heading C2C. Purification of crude aqueous alcohol produced by the hydration of an olefine and contaminated by hydrocarbon oils, which decompose to malodorous substances under normal distillation conditions, first by an extractive distillation to yield an aqueous bottoms fraction containing the alcohol and heavy hydrocarbon oils which is then passed through activated carbon prior to at least one concentrating fractional distillation to recover a purified alcohol fraction. The preferred alcohol is crude aqueous ethanol obtained by the hydration of ethylene and is treated, after extractive distillation, with a conventionally activated carbon, which is suitably wood charcoal or a petroleum based residue, preferably contained in one or more columns at a temperature in the range 60- 325 F. The crude aqueous ethanol may be subjected to conventional pre-treatment, e.g. by fractional distillation to remove ether impurities, after an optional pre-rectification, prior to decanting a non-aqueous phase from the aqueous ethanol which is then passed to the extractive distillation zone into which water may also be fed. According to a preferred embodiment of the invention crude aqueous ethanol containing specified lower boiling, e.g. diethyl ether, and higher boiling impurities including malodorous impurities boiling both above and below ethanol and unstable polymeric oils which produce other malodorous substances under normal distillation conditions is purified by: pre-rectification to concentrate the ethanol, fractionation to remove the diethyl ether, fractional extractive distillation to remove oils, treatment of the aqueous ethanol with activated carbon, rectification to concentrate the ethanol and to remove higher boiling compounds and heads stripping to remove lower boiling impurities.
Patent GB-345016-A (GB)
Title: Improvements in or relating to electric signal-transmitting systems
IPC: H04B3/21
Filed: 1930-01-25
Abstract: 345,016. Two-way terminal equipment. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Jan. 25, 1930, No. 2670. Convention date, Jan. 28, 1929. [Class 40 (iv).] In duplex signalling systems of the kind employing echo-suppressors for disabling the transmitter whilst the receiver is in operation and vice versa, the echosuppressor RS is operated by currents passed through a filter S2 which selects only currents of a limited frequency range, whilst the other branch of the circuit includes a filter S2 which blocks this limited frequency band. The Figure shows a twoway wireless system connected to telephone lines T, T1, but the arrangement is equally applicable to line transmission. In the normal inoperative condition, the suppressor RS operates to block the sender S and open the receiver E. Rectified signals received by E have an unimportant frequency band (e.g. 300-400 cycles) removed by the filter S 1. If there is any want of balance in the junction of the line T, the signal currents would pass to the filter S2 and to the suppressor RS. Such currents are however effectively blocked by the filter S2. When the T subscriber speaks, currents pass through filter S2, operate the suppressor RS, and thus open the sender S and block the receiver E. A similar arrangement may be employed at each station. The complementary filters S1, S2 may be designed for more than one frequency band.
Patent GB-268711-A (GB)
Title: Improvements in fire extinguishing compositions
IPC: A62D1/06
Filed: 1926-09-16
Abstract: 268,711. Weidmann, L., and Tittel, E. Sept. 16, 1926. Chemicals. - A fire-extinguishing composition comprises 21 per cent of sodium bicarbonate or alum, 15 of calcium bicarbonate, 5 of ammonium bicarbonate, 18 of red or white bole, 19.6 of tartaric or oxalic acid, and 21.4 of aluminium sulphate or citric acid or ice-phosphoric acid. The ingredients are mixed to a paste with the bole and water added to produce an effervescence of extinguishing gases. The composition may be used in the extinguishing apparatus described in Specification 267,017.
Patent GB-100372-A (GB)
Title: An Improved Composition for Cleaning and Polishing Metal Goods.
Inventor: FROOD ALFRED DIGGORE
IPC: C11D10/06
Filed: 1916-02-24
Abstract: 100,372. Frood, A. D. Feb. 24, 1916. Metal polishes.-A metal polish consists of tamarind, soap-nut or soap, tripoli with kaolin, chalk, or infusorial earth, and water.