baber/WOPTO huggingface dataset:
Patent GB-259362-A (GB)
IPC: B66B13/18
Abstract: 259,362. Waygood-Otis, Ltd., Simmons, T. H. J., and Clemence, E. Sept. 9, 1925. Electromagnets.-Relates to locking gear for the landing doors of lifts &c., of the kind in which the doors are controlled from the landings and the lift is controlled by an electric push-button system and consists chiefly in controlling the door handle by two electromagnetic members, one member, preferably the electromagnet, being on the car and co-operating with armatures at the landings, the handle having a primary movement for energizing the electromagnet and a secondary movement controlled by a mechanical interlocking device which prevents the door being opened until the car is at rest at the landing. A lock-box 34, Figs. 7, is fitted at the side of the doorway into which a squared shaft 31 passes and within which the shaft carries a cam 36 and an insulating barrel. The cam has an oblique face 42 and a cam plate 43 co-operating with a lug 49 on a cranked lever 47 carrying an armature 50 with bevelled horn-pieces 52, Fig. 15, adapted to contact with wedge-blocks 55 fitted to magnetic bars 53 with inclined ends. The electromagnet 69, Fig. 16, is mounted on the lift cage and has pole pieces 76 which at a landing are approximately opposite the centre of the magnetic bars.
Patent GB-1132485-A (GB)
Title: A centrifugal compressor having a surge-elimination device
IPC: F04D29/66
Filed: 1966-06-10
Abstract: 1,132,485. Centrifugal compressors. A.G. IVCHENKO, A.M. ANASHKIN and G. A. GIRICH. June 10, 1966, No.25945/66. Heading F1C. In a centrifugal compressor a surge-eliminating device comprises a chamber 7 communicating with the compressor flow passage 10 through holes 9 to damp rapid pressure changes occurring in the flow passage. The chamber may be divided by baffles and be open or closed to the surrounding atmosphere.
Patent GB-1421968-A (GB)
Title: Treatment of wells with fluids containing complexes
IPC: C09K8/62
Filed: 1973-05-31
Abstract: 1421968 Wells EXXON PRODUCTION RESEARCH CO 31 May 1973 [15 June 1972] 26020/73 Heading E1F Subterranean formations surrounding a well bore are fractured or acidised in a treatment which includes the injection into the formation of a liquid containing the reaction product of an alkyl, cycloalkyl alkenyl and/or alkaryl quaternary ammonium compound with a water-soluble saccharide or long-chain synthetic hydroxylated polymer which is yielded as a complex at temperatures between 20‹ and 205‹C. The liquid may be injected as an oil/water emulsion.
Patent GB-1155945-A (GB)
Title: A Method for the Production of Inosine and/or 5'-Inosinic Acid
IPC: C12P19/32
Filed: 1966-06-10
Abstract: 1,155,945. Preparing inosine and inosinic acid. TAKEDA CHEMICAL INDUSTRIES Ltd. 10 June, 1966 [10 June, 1965], No. 26037/66. Heading C2C. Inosine or inosinic acid or a mixture thereof is obtained by inoculating a mutant induced from Corynebacterium simplex Jensen, the mutant requiring at least adenine as a growth factor, on to a culture medium mainly consisting as the carbon source of a hydrocarbon containing not less than 10% (vol./vol.) of one or more normal paraffins having a carbon atom number within the range of from 14 to 21, and adenine and any other nutrients necessary for its growth, incubating the culture medium until the desired substance is accumulated therein and recovering it from the culture medium. The fermentation may be carried out under static or submerged conditions, suitably under aerobic conditions in a liquid culture medium. The normal paraffins may be a single paraffin or a mixture of paraffins each having the specified carbon atom number and other hydrocarbons, e.g. branched paraffins, olefins, cyclic paraffins, aromatic hydrocarbons and n-paraffins having 1 to 13 or not less than 22 carbon atoms may also be present. Suitable hydrocarbons include heavy paraffins, heavy gas oil of boiling range 272 to 386 C. and a gas oil of boiling range 180-350 C. Other carbon sources, e.g. carbohydrates such as glucose may also be present and a suspending or solubilizing agent for the hydrocarbon is also generally included. For certain mutants an amino acid and/or a vitamin should also be present in addition to adenine. The adenine may be provided by adenine itself or by a source of adenine, e.g. adenosine, 3<SP>1</SP>- or 5<SP>1</SP>- adenylic acid, meat extract, cornsteep liquor, polypeptone, yeast extract or soybean meal. A digestible nitrogen source and small amounts of inorganic salts may also be present and the initial pH is generally adjusted to from 4À0 to 9À0 and the incubation temperature to about 20 to 40 C. The products may be recovered in the form of their salts, e.g. the di-sodium or di-potassium salt.
Patent GB-191129-A (GB)
Title: Improvements relating to the manufacture of superphosphates and manure
IPC: C05B11/08
Filed: 1921-10-01
Abstract: Phosphates are rendered assimilable by treatment with a neutral sulphate in presence of water and organic matter at temperatures of 60 DEG -130 DEG  C.  When the phosphate contains alkaline material it is desirable to add a small quantity of sulphuric acid.  The addition of small quantities of carbonates, if these are not naturally present, is advantageous, since they react with the added acid and so render the mass porous.  In an example, 60 kgs. of finely-ground mineral phosphate, 15 kgs. of sodium sulphate, 15 kgs. of organic matter consisting of horny matter rendered soluble by steam, 16 kgs. of sulphuric acid of 50 DEG  B<\>ae., and 2 kgs. of calcium carbonate are caused to react in presence of water at a temperature of 90 DEG -110 DEG  C.  The product, which contains 15.5-16 per cent of soluble phosphoric acid, is dried until the moisture content is about 12 per cent.  Mixtures of neutral sulphates may be employed, or a mixture of an acid and a neutral sulphate may be used instead of a neutral sulphate and free sulphuric acid.
Patent GB-1471221-A (GB)
Title: Coaxial cable fitting
IPC: H01P1/04
Filed: 1974-06-12
Abstract: 1471221 Coaxial fittings G SPINNER 12 June 1974 [14 June 1973] 26064/74 Heading H2E A sleeve 20 having a thread 22 is adapted to be disposed between the plastics sheath 16 and outer conductor 14 of a coaxial cable and is clamped by the interaction of two clamping members 30, 32. The thread which may have the form of a sawtooth may be on a cylindrical part of the sleeve, as shown, or on a conical part (Figs. 2 and 3, not shown). The sleeve 20 may be axially slit and may be combined as one piece with the clamping member 30 (Fig. 3, not shown). The leading portion of the sleeve may be cut frusto-conically, may contain a plurality of axial slits of limited depth and may be threaded only on the trailing <SP>1</SP>/ 3  of its length (not shown).
Patent GB-664022-A (GB)
Title: Improvements in or relating to sewing machine frames
IPC: D05B73/00
Filed: 1949-10-11
Abstract: 664,022. Sewing-machines. ZBROJOVKA BRNO, NARODNI PODNIK. Oct. 11, 1949 [Oct. 11, 1948], No. 26095/49. Drawings to Specification. Class 112. Frames.-A sewing-machine frame is formed of thermo-plastic material and comprises two halves meeting along a vertical plane through the longitudinal axis of the machine, the marginal edges of the two parts being formed with flanges to abut one another and the parts being fixed together by screws or other means. The parts may be provided with cast-iron pieces to receive bearings, for the mechanism, or the screws.
Patent GB-863876-A (GB)
Title: Improvements in or relating to gravity concentrators for minerals
IPC: B03B5/62
Filed: 1957-08-19
Abstract: A gravity concentrator comprises an elongated deck which has a flat surface for traversal, longitudinally, by a liquid pulp containing solids to be concentrated, the deck surface sloping downwardly from the feed end to the discharge end and being provided with a series of transversely extending, slit openings each having a width at the deck surface of 0.003-0.015 inch and having an increased width along their depths.  The thickness of the deck is less than the distance between successive slit openings.  A receiver is provided below the deck for catching the concentrate which bleeds off through the slit openings. The concentrator is preferably of trough form and may be rocked from side to side and vibrated.  A number of concentrators may be arranged in tiers, the upper units serving as roughers while those of each succeeding tier serve as cleaners working on the concentrates obtained from the preceeding tier(s).  The apparatus may be used to separate flour gold from placer sands.
Patent GB-437018-A (GB)
Title: Improvements in or relating to electricity induction meters
IPC: G01R11/56
Filed: 1934-04-17
Abstract: 437,018. Prepayment mechanism for electricity meters. WALL, G., Rhosneir, Stretford Road, Urmston, Manchester, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. April 17, 1934, No. 26168 /35. Divided out of 436,957. [Class 27] [See also Group XXXVI] Price - change mechanism.-The load-responsive device that alters the charge per unit of energy in a prepayment meter as soon as the load exceeds a predetermined value operates in response to the power or watts in the circuit with which the meter is associated. The magnetic system of the meter comprises two current magnets 6, 8, Fig. 1, and a common potential magnet 3, there being two air-gaps in each of which is arranged a rotatable conductive disc. One of these (not shown) is the usual meter disc, the other disc 36, Fig. 3, driving a gearwheel 38 against the torque of a spring 37. When the torque on the disc 36 overcomes that of the spring 37, levers 40, 41 are operated and disengage clutch members 46<a>, 46b. The pinion 51, meshing with the commodity side of the meter differential, is then driven from the meter-driven pinion 57 through gearing 48, 55 instead of through gearing 47, 45 and the clutch members 46<a>, 46b. A pawl and ratchet wheel permits overrunning of the wheel 55 when the clutch is engaged. In order to prevent excessive forces from acting on the rotor 36 at high loads, this rotor may be shaped so as to be cut only by a part of the driving flux.
Patent GB-952625-A (GB)
Title: New aldehydes of the fulvene series and new process for the preparation thereof
IPC: C08G4/00
Filed: 1960-07-27
Abstract: The invention comprises compounds of formula: <FORM:0952625/C2/1> wherein one or two X's represent the groups -CHO and the remaining X's represent hydrogen atoms, carboxylic acid ester, alkyl or aralkyl groups or two X's together represent the necessary atoms to complete a fixed benzene ring: R1 is an aryl, hydroxyl, disubstituted amino or hetereocyclic substituted alkene group and R2 is a hydrogen atom or, when R1 is aryl, an aryl group.  The compounds are prepared by reacting a fulvene derivative of formula: <FORM:0952625/C2/2> or a cyclopentadiene of formula: <FORM:0952625/C2/3> wherein one or two X's are hydrogen, the other X's and R1 and R2 being hydrogen or substituents which are inert to halogen-containing acid condensing agents or two X's together represent the necessary atoms to complete a fused benzene ring, at a temperature from -10 DEG  to +80 DEG C. in the presence of a halogen-containing acid condensation agent with a formamide of formula: <FORM:0952625/C2/4> wherein R3 and R4 are hydrogen or substituents which are inert to halogen-containing acid condensation agents and the immonium salt formed is hydrolysed.  The molar ratio of the fulvene derivative or cyclopentadiene formamide and condensation agent are from 1:1:1 to 1:2:2. Specified condensation agents are phosphorus chloride and oxychloride, thionyl chloride, phosgene, aluminium chloride and boron trifluoride. The compounds are used as intermediates in the preparation of synthetic resins. In examples the preparation of the following compounds is described: <FORM:0952625/C2/5> <FORM:0952625/C2/6> <FORM:0952625/C2/7> <FORM:0952625/C2/8> <FORM:0952625/C2/9> <FORM:0952625/C2/100> <FORM:0952625/C2/111> <FORM:0952625/C2/122> <FORM:0952625/C2/133> <FORM:0952625/C2/144> <FORM:0952625/C2/155> <FORM:0952625/C2/166> <FORM:0952625/C2/177> <FORM:0952625/C2/188> <FORM:0952625/C2/199>
Patent GB-534975-A (GB)
Title: Improvements in stop mechanism for typewriting machines
IPC: B41J29/50
Filed: 1939-09-19
Abstract: 534,975. Typewriters. ROYAL TYPEWRITER CO., Inc. Sept. 19, 1939, No. 26179. Convention date, Oct. 1, 1938. [Class 100 (iv)] Margin stops.-In arrangements comprising a pair of stops connected by a resilient member such as a spring which, on release of the stops, moves them into contact with a centre-stop to facilitate re-setting by adjustment of the carriage, a uniform pull on the stops, regardless of their positions, is ensured by employing a resilient member of substantially greater length than the maximum distance between the stops. The margin and line-locking stops G, G' shown in Figs. 3 and 7 are secured to a rack H on the carriage C by latches 22, 22' and are provided with abutment-screws 20, 20<SP>1</SP> for engaging a pivoted buffer, and a line-locking lever 13 on the centre-stop 11. A long spring I is connected to lugs 31, 31<SP>1</SP> on the stops G, G<SP>1</SP> and passes over pulleys 33, 33<SP>1</SP> which are mounted on ballbearings and, to prevent interference between adjacent parts of the spring, are arranged at an inclination. The latch 22 is provided with a roller 28 for co-operation with a releasing-bail J which is mounted on trunnions 43, 44 and is provided with a pin 50 engaging a cam-slot 49 in a finger-lever 52. Normally, the finger-lever abuts on an adjustable stop 53, Fig. 14, and a recess 55 engages the pin 50 to maintain the bail out of contact with the roller 28. When the finger-lever is rocked, the bail releases the latch 22 and the spring I pulls the stop G into contact with the centre-stop. The cam-slot 49 is formed with a recess 56 which co-operates with the pin 50 to maintain the bail and consequently the latch in the release-position. A spring may cooperate with a flat on the finger-lever to prevent accidental movement thereof. The latch 22<SP>1</SP> is associated with a similar releasing-device comprising a roller 28<SP>1</SP>, bail J<SP>1</SP>, pin 50<SP>1</SP> and fingerlever 52<SP>1</SP>.
Patent GB-644204-A (GB)
Title: Improvements in or relating to frequency selective amplifier circuits
IPC: H03F3/189
Filed: 1946-08-30
Abstract: 644,204. Frequency measurements. STANDARD TELEPHONES & CABLES, Ltd. Aug. 30, 1946, No. 26210. Convention date, June 8, 1943. [Class 37] [Also in Group XL (c)] A frequency selective amplifier has a feedback network comprising a bridge circuit which produces positive feedback between the output and input of the amplifier at the frequency to be amplified and negative feedback at all other frequencies. Fig. 13 shows the use of such a frequency selective amplifier in a harmonic analyser. The signal to be analysed is mixed with oscillator O1 in a mixer stage M1, filtered in a resonant filter MF1 of conventional type, Fig. 14 (not shown), mixed with oscillator 02 in a second mixer M2 and the resultant applied to a frequency selective amplifier MF2. Fig. 15 shows a modification in which two crystalcontrolled oscillators Q, Q<SP>1</SP> of fixed frequency difference feed separate mixer stages M, M' to both of which a variable frequency oscillator O is applied. The outputs of the two mixers are connected to two further mixers M1, M2, to each of which the wave to be analysed is applied and the resulting signals fed to frequency selective amplifiers MF1, MF2. The indicator may respond only when the two output frequencies are present simultaneously, Figs. 16, 17 (not shown). Specification 529,595, [Group XL], is referred to.
Patent GB-1120841-A (GB)
Title: Luggage
Inventor: WHEELDON JOHN ARMSTRONG
IPC: A45C13/36
Filed: 1965-06-22
Abstract: 1,120,841. Travelling cases. SINCLAIR OWEN & CO. Ltd. 12 April, 1966 [22 June, 1965], No. 26270/65. Heading B8P. A travelling case formed by two hingedly connected trays 10, 11 deep-drawn from thermoplastics sheet has a rim strip 12 extending externally of one of the trays to receive the rim of the other. In the form illustrated a rim strip 20 is also applied to the other tray, and both rim strips are riveted in place. The rim strip 12 may be cut away at 18 to facilitate bending. Locks, a handle, and resting studs are fitted, and a lining 28 is secured adhesively. The strips may be resilient or include a resilient portion to provide a water-tight joint. The outer surface of the case may be provided with patterning applied to the thermoplastics sheet before moulding.
Patent GB-492789-A (GB)
Title: A process for removing acid components from hydrocarbons or derivatives thereof
IPC: C10G19/04
Filed: 1937-09-28
Abstract: Hydrocarbons or derivatives thereof are freed from organic acid-reacting substances by extraction with a saturated solution of alkali hydroxide in aqueous ethylene glycol.  Petroleum, benzene, toluene, xylene; chlorinated hydrocarbons such as chlorethane, ethylene dichloride, trichlorethylene, carbon tetrachloride, chlopropane, chlorbutylene, chlorbenzene, or brombenzene; nitroethane, nitrobenzene; or amines such as aniline, quinoline or petroleum bases are treated.  The alkalies used are alkali metal or ammonium hydroxide, alkaline earth hydroxide, quaternary ammonium bases, alkali carbonates or bicarbonates.  The preferred solvent is an aqueous ethylene glycol solution containing 25 to 75 per cent of the glycol, saturated with sodium hydroxide.  Petroleum is freed from mercaptans by the process.  The layers are separated and the spent alkali solution containing mercaptides may be regenerated by treating with steam or oxidizing with air and a catalyst to form disulphides which are easily separated.  The liquid to be extracted may be pre-treated with tripotassium phosphate, sodium arsenite, sodium carbonate, ethanolamine, dilute sodium hydroxide or lime water. U.S.A. Specification 2,059,075 is referred to.ALSO:Hydrocarbons or derivatives thereof are freed from organic acid-reacting substances by extraction with a saturated solution of alkali hydroxide in aqueous ethylene glycol.  Petroleum, benzene, toluene, xylene; chlorinated hydrocarbons such as chlorethane, ethylene dichloride, trichlorethylene, carbon tetrachloride, chlorpropane, chlorbutylene, chlorbenzene, or brombenzene; nitroethane, nitrobenzene; or amines such as aniline, quinoline or petroleum bases are treated.  The alkalies used are alkali metal, ammonium, or alkaline earth hydroxides, quaternary ammonium bases, alkali carbonates or bicarbonates.  The preferred solvent is an aqueous ethylene glycol containing 25 to 75 per cent of the glycol, saturated with sodium hydroxide.  After extraction and separation, the spent alkali solution may be regenerated by treating with steam, or oxidizing with air and a catalyst.  The main extraction may be preceded by an extraction with tri-potassium phosphate, sodium arsenite, sodium carbonate, ethanolamine, dilute sodium hydroxide or lime water. U.S.A. Specification 2,059,075 is referred to.
Patent GB-323001-A (GB)
Title: Improvements in synchronous propulsion of pendulums
IPC: G04C13/02
Filed: 1928-09-13
Abstract: 323,001. Jones, F. Hope-. Sept. 13, 1928. Electric clocks.-In an electric clock system the secondary clock pendulums 51, 52, 53 carry armatures N acted upon by fixed electromagnets M, or vice versa, these electromagnets M being fixed very close to the zero positions of the pendulums, and the impulses which simultaneously propel and synchronize the secondary pendulums coming at wide and regular intervals, such as 30 seconds or more. The armatures, or magnets may be on the crutches instead of the pendulums. The periodic impulses come from a master clock A such as that described in Specifications 1945/07 or 9527/15. For example, if a magnet M is 10 millimetres to the right of the zero position its pendulum, the latter will receive its impulse just as it is approaching zero from the left. Specification 187,814 also is referred to. Pendulums.-To start the pendulums correctly from rest, Fig. 2, a loose prop 0 resting between the armature N and a stop P, is removed by the first impulse through magnet M. Specification 6066/05 also is referred to.
Patent GB-802847-A (GB)
Title: Improved unit sealing device
Inventor: COLBECK ALBERT GUSTAV ARTHUR
IPC: F16J15/36
Filed: 1956-08-29
Abstract: 802,847. Stuffing-box substitutes. MORGAN CRUCIBLE CO., Ltd. Nov. 19, 1956 [Aug. 29, 1956], No. 26437/56. Class 122 (5). A unit sealing device between relatively rotatable coaxial parts comprises a carbon or other sealing ring 3, Fig. 1, which bears against one of the coaxial parts, a resilient sleeve-like deformable holder for the ring carried by the other of the coaxial parts and having flanges 1, 2 for engagement with the sealing ring 3 on at least its bore and rear surface, and a rigid or substantially rigid annular reinforcing member 7 inserted within the flanged end of the holder to effect the attachment of the sealing ring 3 thereto without bonding. The reinforcing member 7 may be of brass or plastic material and of L-section or a plain ring. The flanges 1, 2 of the holder may be shaped as shown in Fig. 3 when in their free state, or the bore of the flange 2 may be parallel to the axis of the shaft or tapered (Figs. 4 and 5, not shown), but in each case the flange 2 is forced into engagement with the tapered inner face of the sealing-ring by the axially-extending portion of the reinforcing member 7, the radial flange of the member 7 constituting, when provided, a face for engagement by a spring 17 which is retained in a pressed metal cup 18 inserted within an inturned flange 20 formed at the end of the holder; this flange 20 is itself supported by the inturned lip 21 of an outer metal casing 8 which is a push fit in the bore 9 of one of the relatively rotatable members 10. If desired, the casing 8 may be omitted and one of the parts to be sealed is then provided with a shouldered spring to receive the resilient holder. The casing 8, of pressed or stamped sheet metal, is provided with radially-spaced recesses 11 to engage similarlyshaped keying segments 12 formed on the periphery of the sealing-ring 3 to prevent rotation thereof. The rear faces 13 of these recesses abut the radial face 14 of the bearing housing to position the sealing device. When in operation, the spring 17 is under compression and the sleeve portion of the resilient holder is flexed as shown in the lower half of Fig. 1. An alternative form of outer casing 8 is made of die-cast light alloy, with the radially-spaced recesses formed in a rim portion which is recessed at its rear face to take a rubber sealing washer.
Patent GB-246081-A (GB)
Title: Improvements in spring bows and bow compasses
IPC: B43L9/06
Filed: 1925-10-22
Abstract: 246,081. Norton &. Gregrory, Ltd., and Hickman, G. G. Oct. 22, 1925. Compasses and dividers. - Spring bows are adjusted by a circular nut D engaging a screw-threaded part G of the body B and bearing against the inner surface of the spring arm C; the screw threads are preferably left-banded. The invention is especially applicable to rotating bows having a plunger A capable of endwise movement in the body B.