baber/WOPTO huggingface dataset:
Patent GB-562595-A (GB)
Title: Improvements relating to grabs
IPC: B66C3/08
Filed: 1942-12-24
Abstract: 562,595. Grabs. PRIESTMAN BROS., Ltd., and CQOK, A. Dec. 24, 1942, No. 18312. [Class 78 (iv)] In a single rope grab of the kind described in Specification 200,410, [Class 78 (iv)], in which the hoisting rope is wound round a drum, the rotation of which causes the jaws to close, the locking lever which engages the notches in the rope drum, is made as a pawl acting in compression during engagement and is provided with a projection which engages the tail piece of the tumbler to hold the tumbler raised as long as the pawl is in engagement with the notches of the drum. The Figure shows a construction in which the grab is suspended by its hook c from a ring a, the load being taken by a pin p. At this time the tumbler s is raised and the locking pawl t is free to engage with the drum e and the girder m is lowered to open the jaws of the grab when the rope is paid out. When the rope is drawn up the pawl t engages on the drum e and frees the hook c. The tumbler s is meanwhile held up by the arm u of the pawl engaging the tail piece x until the grab is lowered to the load. The fall of the tumbler s on the release of the pawl t lifts the latter and re-erects the hook c so that the grab closes, lifting a load when the rope is drawn up.
Patent GB-1153123-A (GB)
Title: Improvements in or relating to Horticultural Rakes
Inventor: JONES CYRIL
IPC: A01D7/08
Filed: 1966-04-27
Abstract: 1,153,123. Rakes. WARD & PAYNE Ltd. 12 April, 1967 [27 April, 1966], No. 18333/66 Heading A1B. A horticultural rake comprises a fanshaped mounting member 2 adapted to be secured to a handle, one face of the member having an arcuate recess 5 extending from side to side of the member with notches 7 formed in an arcuate boundary rim 6 of the recess to receive the stems of the tines and retention means 10 for the inner ends of the tines within the recess, a closure plate being provided for the recess to secure the tines in the notches and hold the inner ends of the tines in engagement with the retention means. The tines may be formed in pairs from spring wire bent to V-shape, the base 12 engaging round a projection 10 from the bottom of the recess. The tines may be formed singly each tine having its inner end bent into a loop to fit round a projection from the bottom of the recess or the inner end may be bent to form a projection to lie across a notch formed in the recess. The recess may be subdivided by ribs 9 in which case two cover plates are provided. The mounting member may be flat or transversely curved and may be formed from plastics material or metal.
Patent GB-359511-A (GB)
Title: Improvements in or relating to cutting apparatus especially suitable for the manufacture of staple fibres
IPC: D01G1/04
Filed: 1930-06-16
Abstract: 359,511. Cutting filaments ; stationary-cutter machines. BRITISH CELANESE, Ltd., 22, Hanover Square, London, HALE, F. C. and KIMPTON, W. H., of British Celanese, Spondon, near Derby. June 16 1930, No. 18337. [Class 31 (i).] Cutting apparatus particularly adapted for cutting continuous lengths of artificial filaments into short lengths comprises one or more pairs of overlapping circular knife-edged discs, at least one of each pair being driven at a high speed, together with means for feeding the filaments laterally into the nip of the knives. The knives may be adapted to sever lengths from the ends of filaments led endwise to a pair of knives, or several pairs of knives may be mounted adjacent to one another, and the filaments led laterally into the nip of the knives and severed at several points simultaneously. A number of pairs of circular knife-edged discs 7, 8 are mounted on two parallel driven shafts 5, 6. Bands 10, on which lengths of filaments are placed, pass over supporting rollers 13 and between adjacent pairs of knives. A second set of bands 15 runs between the knives. As the filaments approach the knives they are gripped by the two bands which converge, supporting plates 21, 22, slotted to accommodate the knives being provided for this purpose. Means are provided for adjusting the tension in either set of bands. The cut filaments may be led from the knives by a shoot or by suction, and the uncut lengths may be led to the knives by a hopper having sides consisting of moving bands. In a second form of feeding means described, the filaments are led or blown through an oscillating tube whose mouth moves close to the nip of the knives, so that lengths of filaments are severed each time the tube carries the filaments into the nip of the knives. Specification 357,565, [Group IV], is referred to.
Patent GB-440316-A (GB)
Title: Improvements in or relating to holders for cigarettes and cigars, and to tobacco pipes
IPC: A24F7/04
Filed: 1935-06-27
Abstract: A cigar or cigarette holder or tobacco pipe is provided with an absorbent filling or cartridge composed of granulated rice and wheat products mixed into a plastic state with coffee and a liquid of a lactic nature.  The holder may consist of a tube of paper with a composition at the mouthpiece end, or a cartridge made of the composition may be inserted in a cavity provided in a wooden holder or in a tobacco pipe.
Patent GB-1255743-A (GB)
Title: Electronic comparison device
IPC: H03K19/084
Filed: 1969-04-10
Abstract: 1,255,743. Transistor logic circuits. C.I.T. GOMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS. 10 April, 1969 [12 April; 1968], No. 18557/69. Heading H3T. A transistor T is non-conductive only if all the inputs E 1 , E 2  ... E n  are all positive or are all hot positive, the inputs being supplied to the emitter through a set of input circuits such as diodes D 1a  to D na , and to the base through a set of control circuits such as diodes D 1c  to D nc , corresponding ones of the input and control circuits being linked through diodes D 1b  to D nb  which when conductive render the associated control circuit non-conductive. Each linking diode D 1b  &c. conducts to reverse bias the diode D 1c  of the second input circuit if its corresponding first input circuit diode D 1a  receives a positive signal; this prevents base current flowing from transistor T through the diode D 1c  Thus if all inputs are positive, no base current can flow and T is off. If all inputs are 0 then no input current to the emitter is available and T is again off. If a reference voltage is applied to E1 the transistor T conducts to indicate the presence of a dissimilar voltage at any other input. The diodes D 1b  to D nb  are said to reduce the tendency to inappropriate response of the transistor T if, for example, the majority of inputs are positive; a positive voltage, having a value equal to an input positive voltage minus the voltage drops across the input diodes D 1a  &c., the emitter-base junction of T, and the diodes D 1c  &c., would appear, in the absence of the diodes D 1b  &c., on those input lines which are nominally at 0. Consequently, erroneous operation of the transistor could occur.
Patent GB-753941-A (GB)
Title: Steroids
IPC: C07J1/00
Filed: 1954-06-24
Abstract: The invention comprises 17a -methyl-17b -hydroxy androstane-3,6-dione and the preparation thereof by reacting, at a temperature between about 0 DEG  and 80 DEG  C., 6-hydroxy-17a -methyltestosterone, dissolved in an organic solvent, with an acidic or basic catalyst. As solvent there may be used an organic carboxylic acid containing less than 9 carbon atoms or t-butyl alcohol.  As acid catalysts there may be used hydrochloric, sulphuric, benzensulphonic acids, or a suspension of an acidic resin or ion exchange resin containing carboxylic, sulphonic, or phosphonic acid groups, in an organic acid of the same nature as the solvent for the steroid.  Sodium or potassium hydroxide may be used as basic catalysts.  6b  - Hydroxy - 17a  - methyltestosterone is obtained by the bio-oxidation of 17a -methyltestosterone with a mould of a strain of Rhizopus nigricans.
Patent GB-219813-A (GB)
Title: Improvements in or relating to motor wagon gulley emptying and recharging apparatus
IPC: B60P3/24
Filed: 1923-07-20
Abstract: 219,813. Lewin, W. J., and Deighton's Patent Flue & Tube Co., Ltd. July 20, 1923. Pneumatic collectors.-The vehicular vacuumapparatus for emptying gullies described in Specification 110,980 has the two-part tank for mud 6 and disinfectant 7 divided by an inclined partition 9 in the form of a discharge shoot, the front of which is tapered in plan, the rear parallel part passing between and below the side frames 1 of the vehicle to a door 10. The vacuum casing 3 is fitted with a suction pipe 4 and a valved outlet 5. The disinfectant is discharged through a pipe 8.
Patent GB-932117-A (GB)
Title: Improvements in or relating to closed feed systems for steam boilers
Inventor: RANDELL FORREST THOMSON
IPC: F01K9/02
Filed: 1961-05-24
Abstract: 932,117. Steam turbines. G. & J. WEIR Ltd. May 17, 1962 [May 24, 1961], No. 18700/61. Class 110 (3). [Also in Group XIII] A steam turbine 3 is driven by the non- condensible gases and steam extracted from a deaerator 1 in a closed feed system for a steam boiler (see Group XIII) and is used to drive the deaerator extraction pump 2 or alternatively the main condenser extraction pump.
Patent GB-1219353-A (GB)
Title: Improvements in electrical control systems
IPC: H02P7/29
Filed: 1968-04-19
Abstract: 1,219,353. Control of D.C. motors. GENERAL PRECISION SYSTEMS Inc. 19 April, 1968 [19 April, 1967], No. 18745/68. Heading H2J. [Also in Division G3] An electric motor 19 is supplied from source 18 through a rectifier bridge comprising transistors 51-54 which are controlled by a freerunning multivibrator 16 formed by transistors 37, 38. The output frequency of the multivibrator is determined by a signal from an amplifier 13 having transistors 31, 32 for comparing a reference signal at 15 with a feedback signal at 14. Zener diodes 58, 59 prevent conduction from the multivibrator through resistors 55, 56 until a threshold voltage is reached so that there are recurrent intervals during which the motor is de-energized. A circuit 21 samples the back E.M.F. during these intervals and stores it for application to the input 14 of the amplifier 13. A unit 48 differentiates the pulses from the multivibrator whereby the circuit 21 samples the signals on line 22 for short periods coincident with the times when there is no conduction through the diodes 58, 59 and the motor is coasting. The potentiometer 11 may be re-arranged to provide signals of different sign which are selectively gated to control the application of the potential output from the oscillator 16 to the power amplifier 17. The motor then operates in one direction or the other in accordance with the state of conduction of the pairs of transistors 51, 54 or 52, 53.
Patent GB-483952-A (GB)
Title: Improvements in or relating to motor ploughs for agricultural purposes
IPC: A01B3/58
Filed: 1937-07-06
Abstract: 483,952. Implements for working land. CATCHPOLE, W. M. July 6, 1937, No. 18805. [Class 6 (i)] In a motor plough of the kind steered by a man walking behind it and comprising a two-wheeled tractor unit and a plough unit pivotally connected to it, including a beam extending longitudinally and pivotally coupled at its forward end to the tractor unit in such a manner as to have freedom for swivelling movement as well as pivotal movement in a horizontal plane, the steering handles 6 are mounted upon the plough unit and the two units are so connected together that by tilting the plough unit by bearing down to one side or the other on the steering handles, steering movement is imparted from the plough unit to the tractor unit. The plough beam 3 may be adjustably connected to the tractor carriage 1 forward of the wheel axle. It is also connected to an arm 2 projecting rearwardly from the carriage 1 by a steering connection consisting of an adjustable arm 7, 8 and a pivot bolt 11. The plough frame 4 carrying the handles 6 is connected by a pivot 14 to the beam 3, being adjustable about its pivot by a screw 15 extending to near the ends of the handles 6 and situated at a height above the ground. The screw 15 passes through a tapped arm 18 on the plough frame 4 and engages a stop 20 on the beam 3, the arm 18 being pulled towards the beam 3 by a spring 19. The upper part of the frame 4 is U-shaped in section and forms a socket 21 to receive the beam 3 which is provided with a pin 22 engaging in slots 23 in the socket. When the ploughshare is raised out of work by depressing the handles 6 and thus tilting the frame 4 about the pivot 14, the parts are automatically locked in position by a spring-controlled bell-crank lever 24 engaging the corner of the beam 3. The steering handles 6 may be adjustable to suit users of different heights.
Patent GB-835995-A (GB)
Title: Improvements in and relating to cutting tools for lathes, milling machines and the like
IPC: B23B27/16
Filed: 1955-06-29
Abstract: 835,995. Cutting-tools for lathes, milling- machines &c. BOOTH, C. H. July 6, 1956 [June 29, 1955; July 14, 1955], Nos. 18867/55 and 20362/55. Class 83 (3). [Also in Group XXIII] A cutting-tool for lathes, milling-machines, &c., comprising a main body and an insert of hard cutting material, of generally geometric shape and whose length is preferably greater than the width or diameter, has the insert arranged so that the direction of length of the insert extends along the mean path of recession of the cutting-edge at successive sharpenings. In a turning-tool 1, Figs. 1 and 3, having an insert 8 cutting a workpiece 2, the top face 4 and the side face 6 wear away and require a first resharpening by the amounts c and a respec. tively. So long as the rate of tool-wear remains constant, the cutting-edge e will move, due to successive sharpenings, along a path represented by the line x-x. The insert, in this example rectangular, is mounted in the body so that its longitudinal axis lies in the direction x-x. Inserts of circular section, some with coolant passages, are described. Milling cutters.-A carrier hub or disc 20, Figs. 10-12, of medium carbon steel or other relatively cheap material, has toothed segments 21 secured thereto by tongues 22 fitted into a circumferential groove 23 in the hub, and is secured by rivets 24. The hard-metal cutting- inserts 88, 89 are of I-section, slotted into the segments and secured by welding or brazing. These inserts are alternately high-and-narrow and broad-and-low, to facilitate chip-clearance, and are arranged at an angle of up to about 50 degrees with the radius so that the axis of the insert lies along the path of recession of the cutting-edge e for successive sharpenings. The broad inserts may be in two pieces welded to the segment faces, while the narrow inserts may be held in box-like recesses formed by making the segments of double thickness. A solid construction may be used in place of the segmentalarrangement shown. The constructions are applicable to circular and straight-cut saws (Group XXIII).
Patent GB-363616-A (GB)
Title: Improvements in and relating to the production of photographic images
IPC: G03C5/40
Filed: 1930-06-20
Abstract: 363,616. Colour r photography. MURRAY, H. D. and SPENCER, D. A., 118, Fulham Road, London. June 20, 1930, No. 18909. [Class 98 (ii).] Images in coloured dyestuffs are produced by combining a metallic image e.g. a bleached silver image with a diazo compound and coupling the resulting complex with an azo-coupling component. The process is applicable to two and three colour photography. Suitable diazo compounds are the derivatives of p - amino - dimethyl - p - - phenylenediamine, p - aminodiphenylamine, p - diamino - diphenylamine, p - amino - triphenylamine and p - aminodiphenylurea, the azo components being amines, phenols phenol-sulphonic acids and aminophenol-sulpbonic acids. The bleaching agent for the silver image may be cupric chloride or potassium ferricyanide, and fixing agents, such as sodium thiosulphate, cyanide, or sulphocyanide may be added to the bath containing the diazo compound. In addition, weak acids (e.g. citric acid) or their salts may be included in this bath. The coupling is effected by non-volatile alkali or salts such as sodium borate which are alkaline by hydrolysis, and agents for salting-out the dyestuff may be included in the coupling bath. In an example for producing three colour prints the developed prints are first bleached in a solution containing potassium iodide, potassium citrate and citric acid to which p-diazo diphenylamine sulphate is added, washing being carried out with a solution of potassium iodide. For the red image the print is treated with a solution containing borax, sodium thiosulphate, potassium hydroxide, potassium citrate and J-acid. The bath for the blue image is identical with the above except that H-acid is substituted for the J-acid. For the yellow image the borax is omitted and m-cresol used in place of the H-acid. The prints are finally washed in a solution of potash alum.
Patent GB-660874-A (GB)
Title: Gel manufacture
IPC: B01J2/08
Filed: 1949-07-19
Abstract: <PICT:0660874/III/1> <PICT:0660874/III/2> <PICT:0660874/III/3> Spheroidal gel particles are formed by ejecting a sol through an orifice which moves horizontally above the surface of a body of water immiscible liquid, at approximately the same rate as, and in opposite direction to the ejected liquid stream which is thereby laid on the surface of the liquid and, in falling therethrough is, as a result of interfacial tension, divided into globules which set as they fall through the liquid into spheroidal gel particles.  Preferably the orifice moves in a circular path as in Fig. 1, above the surface of an annular liquid bath 8 supplied by pipe 11 and maintained at constant level by overflow 12 into tray 13.  The orifice 74, Fig. 5, is mounted on a streamlined mixing head 25 which, supported by pipes 22, 23, Fig. 4, rotates about an axle 21.  Pipes 30 and 31 lead the sol forming components separately through the hollow axle 21 to the pipes 22, 23 respectively and hence to the mixing head 25 through bores 56 and 57, one of the components passing into bore 67, the other into the annular space surrounding bore 67 and thus to a mixing chamber 73 which terminates in orifice 74.  Formed gel particles descend through the liquid bath and liquid/water interface 9 to a water bath containing for example a 5 per cent aqueous solution of sodium sulphate which is supplied through pipe 10, the effluent through duct 4 carrying with it the finished gel particles. Plural or ternary gels of silica with aluminium, zirconium, beryllium or magnesium oxides may be so formed, the gel forming components, for example sodium silicate and an aluminium sulphate/sulphuric acid mixture, or alternatively separate sols, being fed into pipes 22, 23 for mixing, ejection and gel forming. Finely divided powders such as fused alumina, pumice, bauxite, clay, dried gels and gelatinous precipitates the same as or different from the hydrogel used, and which are insoluble in the sol and liquid bath and preferably infusible at 1000 DEG F. may be added to the gel forming components. In the preparation of catalysts for hydrocarbon cracking up to 1 per cent of magnesium, vanadium, manganese, chromium, tungsten, lithium, calcium, molybdenum, or nickel may be added.
Patent GB-300488-A (GB)
Title: Improvements in machines for moulding pie casings and the like
IPC: A21C3/00
Filed: 1928-06-30
Abstract: 300,488. Christiansen, E., and Ericsson, C. O. June 30, 1928. Pie-moulding machines; flower-pot and like machines.-In machines for moulding pie casings &c. wherein the mould is spun about its own axis, the mould, or a table carrying the mould, is mounted on ball or roller bearings on top of an box in which the driving-gear is located. As shown, the mould 1 is carried by a table 2 mounted on ball bearings 3 on an oil box 4. The table is furnished with a spindle 5 carrying a worm wheel 9 which is driven by a worm 10 on a shaft 11 mounted in bosses 12, 13. The boss 12 is provided with a gland 15 to prevent escape of oil; the boss 13 carries a thrust bearing 14. A closure plate 8 carries a bearing boss 7 for the lower end of the spindle 5.
Patent GB-1139233-A (GB)
Title: Preparation of edible collagen sausage casing
Inventor: TALTY ROBERT DEAN
IPC: A23J3/28
Filed: 1966-04-29
Abstract: 1,139,233. Tubular films. TEE-PAK Inc. 29 April, 1966 [13 July, 1965], No. 19008/66. Heading B5B. A method of preparing an edible tubular collagen casing comprises treating a fresh or frozen or salt-cured animal hide with a limecontaining solution for a time, in the range 3-12 hours, sufficient to at least partially dehair the hide without degrading the collagen, washing the hide to remove excess liming solution, removing the epidermal layer and remaining hair, grinding the limed hide at a temperature less than 20‹ C. to produce a slurry of finely divided collagen in water, treating the slurry with acid at a pH of 2À5 to 3À7 to swell the collagen and burst the fibre bundles to form fibrils, the washing, grinding, and acidification of the hide being carried out in less than 12 hours, extruding the slurry having a solid collagen content of 2-6% by weight through an annular die to form a collagen tube, immersing the tube in a coagulating bath, tanning the collagen tube, and washing, plasticizing, and drying the tube to produce a translucent non-fibrous edible product. In a preferred method, the epidermal layer and remaining hair are removed mechanically and the hide is then de-fleshed and cut into pieces prior to grinding, and the acid-treated slurry is homogenized, filtered and de-aerated prior to extrusion. The slurry preferably contains 3À5 to 5% collagen. The lime solution is preferably a solution containing excess solid lime, sodium sulfhydrate (NaSH), and dimethylamine sulphate. The coagulating bath suitably contains an alkali metal sulphate or ammonium sulphate. In examples: (1) a coagulating bath consisting of 42% ammonium sulphate in water is used; (2) a coagulating bath consisting of 35% aqueous ammonium sulphate is used; (3) 30% aqueous ammonium sulphate. The tanning bath suitably contains a tanning agent comprising a soluble ferric or aluminium salt or a non-toxic dialdehyde. In examples: (1) a tanning bath comprising an aqueous solution of 10% ferric ammonium sulphate and 20% ammonium sulphate is used; (2) the tanning bath comprises 3% aqueous solution of glutaraldehyde at pH 5À0; (3) a conventional alum tanning bath is used. In general, plasticization is effected with an aqueous solution of glycerol. Drying is effected in warm air. In Fig. 2, the collagen slurry is introduced through inlet conduit 1 into die 2 having an annular die outlet 3 through which casing 4 is extruded. Die 2 has an inner tube 5 which extends upwardly within the extruded casing to remove coagulating bath from therewithin. Die 2 is located at the bottom of container 6 containing coagulating bath 7, which circulates through conduit 8 from tube 5 for removal of the coagulating bath from inside the extruded casing. Casing 4 which is coagulated in bath 7 passes over a series of rollers (not shown) and is directed successively through tanning, wash and plasticizing baths, hence to wind up on a reel, or alternatively to a shirring machine.
Patent GB-136865-A (GB)
Title: Improvements in Electric Heaters for Liquids & the like.
Inventor: BERNARD PIERRE JOSEPH HENRI
IPC: F24H1/20
Filed: 1918-11-20
Abstract: 136,865. Bernard, P. J. A. Nov. 20, 1918. Generating by electricity; shells.-A steam generator consisting of a dome-shaped casing 4 secured to a base 1 is provided with a partition 10 secured by a flange 9 between the casing and base and closing the bottom of the casing. The partition 10 is divided into compartments, into each of which a heating-element is detachably secured by a plate 14 with a central aperture. An inlet for water is provided at the bottom of the easing 4 and an outlet for steam at the top, a watergauge being provided.