baber/WOPTO huggingface dataset:
Patent GB-292881-A (GB)
Title: Improvements relating to vices or work holders for machine tools, work benches and the like
IPC: B25B1/22
Filed: 1928-02-17
Abstract: 292,881. Hoffmann, O. Feb. 17,1928. Vices.-In a vice for lathes, planing-machines, drilling-machines, or other machine tools or work benches &c. turnable on a horizontal axis lying in the direction of motion of the jaws , the tool or work-carrying jaws d slide by independent adjustment in a mount c which can be swivelled in bearings f and clamped in any desired position up to 90‹ by end screws l moving in arcuate slots b. A scale o is marked on the end of the bearing f for use in setting the angle of the jaws. The jaws may be replaced by a simple clamping plate provided with T-grooves. The vice is fixed on a machine &c. with the help of two holes m and a recess n in the base.
Patent GB-525314-A (GB)
Title: Improvements in or relating to consumer's package and methods of making consumer's package
IPC: B65D77/04
Filed: 1939-02-17
Abstract: 525,314. Boxes; packing. STEVENS, A. H. (General Mills, Inc.). Feb. 17, 1939, No. 5339. [Classes 18 and 94 (i)] A package 10 for the use of consumers of hydroscopic foods comprises an outer rectangular shell 12 with top flaps in which are housed separate cartons of equal size, each containing part of the material. Each inner carton 14 has top closing flaps and is provided with a lubricating and moisture-proofing envelope 15 containing, e.g., paraffin, resinous materials &c. The filled and closed cartons 14 are fed by a plunger 30, Fig. 10, into grippers 32 on an endless belt 34 dipped in a bath of, e.g., molten paraffin and are thereafter removed from the grippers by plungers 40. The coated cartons are deposited on a swinging shelf 44 and transferred by a conveyer 48 to a drying or refrigerating chamber 50. As the cartons leave the chamber 50 they are delivered between top and bottom guides 52 to a stop in front of a pusher plate 56. The plate 56, when depressed, inserts the assembly of coated cartons, into an outer shell, which has been properly positioned by suitable mechanism beneath the path of movement of the cartons.
Patent GB-854460-A (GB)
Title: Improvements in or relating to lifting trucks
IPC: B66F9/19
Filed: 1956-02-21
Abstract: 854,460. Masted lift-trucks; endless conveyers. TALBOT-PONSONBY & CO. Ltd., HEYWOOD, N., and STEER, J. M. Feb. 19, 1957 [Feb. 21, 1956], No. 5349/56. Classes 78 (1) and 78 (3). The vertically - movable platform of a lifting- truck is provided with an endless conveyer for moving the load horizontally. As shown, endless roller chains 15, Fig. 3, which may be driven in either direction manually, electrically or hydraulically, are provided on the vertically-movable platform 13 of the truck, and a member 35 removably attached to the chains 15 is used to push a load off the platform or to pull it on with the aid of slings 40. Idler chains 30 and rollers 31 are provided to facilitate movement of the load. A member 42, Fig. 5, may be secured to the member 35 by struts 43 and used to push the load well clear of the platform.
Patent GB-565788-A (GB)
Title: Improvements in the manufacture of cheese and other substances depending on the clotting of milk
IPC: A23C19/032
Filed: 1943-04-03
Abstract: Bacterial proteinase, instead of rennet, is used for clotting milk in making cheese and junket-powder and the production of casein for industrial purposes.  The proteinase may be produced by the action of Bacillus subtiles, Bacillus mesentericus, Bacillus fusiformis species and groups grown in media of vegetable or animal extracts, such as of soya bean, ground nut or peptone with a carbo-hydrate, such as glucose or starch, followed by filtration and the addition of a preservative, e.g. salt.  It may be used in liquid form, concentrated by evaporation at a low temperature, or precipitated by salting out. For junket-powder it is dehydrated and mixed with cornflour or the like and any desired flavouring essence.
Patent GB-1079893-A (GB)
Title: Improvements in controlling the gain or attenuation of electrical circuits
Inventor: HARWOOD PETER JOHN
IPC: H03G1/02
Filed: 1965-02-08
Abstract: 1,079,893. Volume control; transistor circuits. G. & E. BRADLEY Ltd. Feb. 7, 1966 [Feb. 8 1965], No. 5386/65. Headings H4R and H3T' In a gain control circuit, Fig. 2 (not shown), which uses a number of variable impedance elements (D1 to D4) to control the gain of an amplifier, the control circuit for the variable impedance elements, e.g. varactor diodes, thermistors or transistors, comprises, Fig. 3, a number of transistors VT1 to VT4 each associated with one of the elements D1 to D4 and arranged so that as the control voltage input increases from zero the current through the collector circuit of VT4 and hence variable element D4 increases until collector current saturation occurs further increase in the control voltage then causes transistor VT3, which previously has been drawing very little current, to conduct and increase the current through D3 until the collector current of VT3 reaches saturation when VT2 conducts followed, when VT2 is saturated, by VT1. The arrangement provides a wide range of control. The resistors R21, R31-R32, and R41-R43, may be provided to compensate the drop in collector current which occurs in a transistor when the other transistors start to conduct, thereby increasing the voltage drop from the emitter to the negative supply line via R5.
Patent GB-782856-A (GB)
Title: Yarn finishing process
Inventor: MCLEAVY GORDON
IPC: D06C15/00
Filed: 1955-02-23
Abstract: 782,856. Finishing yarns and threads. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Feb. 1, 1956 [Feb. 23, 1955], No. 5399/55. Class 120(3) In a process for smoothing yarn consisting of or comprising thermoplastic fibres e.g. in admixture with non-thermoplastic fibres such as cotton and flax, by flattening protruding fibres, and heating sufficiently to set them in the flattened position, the yarn is passed continuously through a device which comprises a heated narrow passage e.g. a split, tapered tube having a wide funnel- or trumpet-shaped entrance and the wall(s) of which is heated as by means of an electric resistance wire or a gas flame, which flattens the fibres against the yarn: the effective diameter of the passage is not greater than twice the diameter of the yarn and its length is at least one half the average length of the fibres protruding from the. main body of the yarn. The yarn may be twisted as it travels through the passage, so that all its outer surface is in close proximity to the passage wall, and two successive grooves may be positioned one above and one below the yarn to ensure complete flattening of the fibres. The smoothed yarn may be sized before winding- to prevent ruffling of flattened ends. If a sheet of yarns, as on a warping beam, is to be smoothed, the yarns are passed through a device containing a number of single passages or one narrow slot as may be formed by two plates, one at least of which is heated, in which case a rotary movement is imparted to the yarn: alternatively, bars or rolls form the passages.The treated yarn may be doubled with similar or other yarns.
Patent GB-1098283-A (GB)
Title: Process for dehydrogenating a-nor-b-homo-steroids
IPC: C07J69/00
Filed: 1965-02-08
Abstract: Novel D 7- and D 1,7-3,6-dioxo-A-nor-B-homo-steroids are prepared by halogenation and basic dehydrohalogenation of rings A and B saturated or D 1 - 3,6 - dioxo - A - nor - B - homo-steroids Enol esters and enol ethers may also be used.  The 5-halo-steroids first formed may be isomerized, or may isomerize spontaneously, to 7-halo-steroids and some 2-halo-steroids which on dehydrohalogenation give D 7- and D 1-compounds respectively.  The latter may then be further halogenated and dehydrohalo-genated to D 1,7-compounds.  The halogenation is effected in an inert organic solvent with a halogen or a hypohalous acid or a compound yielding such.  Resulting hydroxy compounds or their esters or ethers may be converted one into the other and OXO groups may be reduced, with or without concomitant introduction of a hydrocarbon substituent.  The starting materials may belong to the androstane, pregnane, cholane, cholestane, spirostane or cardanolide series or the 19-nor compounds and may contain free, esterified or etherified hydroxyl groups, free or ketalized oxo groups, aliphatic hydrocarbon groups and halogen atoms.  They may also contain one or more additional double bonds.  The compounds of the invention, which may have variously anabolic, gestagenic, ovulation inhibiting, anti-cholesterolaemic, progestational and adrenocortical activity, may be made up into pharmaceutical or veterinary compositions with suitable carriers.
Patent GB-105408-A (GB)
Title: An Improved Bit for Cutting Circular Undercut Holes and Holes of various Diameters.
Inventor: LAUDER DAVID JEFFREY
IPC: B23B51/00
Filed: 1916-10-12
Abstract: 105,408. Lauder, D. J. Oct. 12, 1916. Augers.-A bit for producing undercut holes, particularly in wood, has a pair of members 6, Fig 1, pivoted in a slot in the shank at 5. The expansion is effected by a sleeve bearing on the work and having a rounded edge 11, slots 12 to receive the members 6, and openings 15 for the escape of cuttings. The shank has a screw point 3 and cutting-edges 3a and may be graduated to show, in conjunction with the sleeve, the depth drilled. In a modification, not for undercutting, the members are linked at 18, Fig. 4, to a sleeve 13 adjustable on the shank and clamped by screws 19 engaging slots in the shank, which is graduated to show the effective diameter of the bit.
Patent GB-373654-A (GB)
Title: Improvements relating to printing
IPC: B41C3/00
Filed: 1931-02-21
Abstract: 373,654. Printing-plates. WILLER, R. L., 68, Elers Road, Ealing, London. Feb. 21, 1931, No. 5512. [Class 100 (ii).] Moulds for producing indiarubber printing- plates are prepared by pressing flong or other suitable plastic substance on to the type or printing-surface in a press whereby the back of the mould is formed flat, or by beating flong or like plastic substance into the type &c. and filling in the cavities formed in the back with a substance, such as a mixture of whiting, flour paste, and glue, which will set, and then levelling off the rear surface. The surface of the mould may be treated with a solution of cellulose acetate or nitrate to bind the fibres and prevent adhesion of the rubber during the moulding process, or the flong may be first impregnated with such a substance or with a phenol-formaldehyde condensation product. The mould material may consist of a phenolformaldehyde condensation product with or without a filler of wood meal, or of a flong faced with a layer of such a material.
Patent GB-500914-A (GB)
Title: Improved electric incandescent lamp having a refractory incandescent body
IPC: H01J61/00
Filed: 1938-02-22
Abstract: 500,914. Glass manufacture. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Feb. 22, 1938, No. 5561. Convention date, Feb. 25, 1937. Drawings to Specification. [Class 56] [Also in Groups XL, II, and III] An envelope or sheath of material having a melting-point of over 3000‹ K., such as tungsten, encloses a discharge by which it is heated to incandescence. The ends of the envelope may be closed by plugs of glass through which the electrodes pass: A suitable glass contains 83À1 per cent of SiO2, 6À1 per cent of B2O3, 7À1 per cent of Al2O3, and 3À7 per cent of CaO.
Patent GB-758350-A (GB)
Title: Improvements in or relating to mine-ventilation or similar ducts
IPC: E21F1/04
Filed: 1953-02-27
Abstract: 758,350. Band clips. SCHAUENBURG, H. G. Feb. 27, 1953, No. 5601/53. Class 44. [Also in Group XXVIII] A split clamp 25 having an internal peripheral groove and for connecting the adjacent ends of flexible ducts is provided with a rack 10 the teeth 26 of which are engageable by a pin 29 on a lever 28 connected to a pivoted toggle lever 27.
Patent GB-525387-A (GB)
Title: Improvements in or relating to the production of aluminium fluoride
IPC: C01F7/50
Filed: 1939-02-20
Abstract: 525,387. Aluminium fluoride; double salts. RUTGERSWERKE-AKT.-GES., and KAHL, L. Feb. 20, 1939, Nos. 5620 and 5621. Convention dates, March 9, 1938 and April 26, 1938. [Class 1 (iii)] Complex salts of aluminium fluoride with aluminium sulphate, chloride, bromide, iodide, or nitrate, which may be obtained by reacting fluorspar with the necessary aluminium salt, are heated either in solution or in the solid state to temperatures above 100‹ C., and preferably to 200-300‹ C., to decompose the complex salt and release aluminium fluoride. When the complex salts are heated in solution, aluminium fluoride is precipitated, and the solution of water-soluble aluminium salt remaining may be re-used with more fluorspar to re-form fresh complex fluoride, after separation, as by treatment with aluminium sulphate, of any soluble calcium salt that may be present by virtue of the mode of preparation of the complex fluoride. When the solid complex salt is heated, aluminium fluoride is isolated by leaching out the soluble aluminium salt together with the soluble calcium salt if present.
Patent GB-1463117-A (GB)
Title: System for detecting the location of moving objects
IPC: G01D5/20
Filed: 1974-02-07
Abstract: 1463117 Track apparatus SUMITOMO ELECTRIC INDUSTRIES Ltd 7 Feb 1974 [8 Feb 1973 (2)] 05777/74 Heading B7N [Also in Division H3] In a system for detecting the position of an object, e.g. a crane or train moving along a track, coils 5 1 , 5 2  mounted on the object are A.C. energized by a generator 6 and induce an A.C. signal into pairs of conductors 1 1  to 1 3  and 1 n-1  extending along the track, conductor pairs 1 1  to 1 3  being crossed at predetermined points so that the induced currents are phaseshifted at these points, the uncrossed pair 1 n+1  providing a phase reference. The outputs of the pairs 1 1  to 1 3  are amplified, 7 1  to 7 3 , converted to square waveform, 8 1  to 8 3  and compared in phase-detectors 9 1  to 9 3  respectively with the reference phase signal similarly treated, the resulting binary address signal being registered at 10. In a modification, Fig. 7 (not shown), the reference pair is crossed at regular intervals and the other pairs are crossed at the same intervals but with some of the crossing points omitted, the omission points differing for each pair, so that coded address signals may again be obtained via phase-detectors.
Patent GB-1460125-A (GB)
Title: Process for the preparation of isocyanurate foams
IPC: C08G18/09
Filed: 1975-02-11
Abstract: 1460125 Foamed isocyanurate polymers BASF WYANDOTTE CORP 11 Feb 1975 [25 Feb 1974] 5808/75 Headings C3C and C3R Foamed polymers containing isocyanurate linkages are made by condensing an organic polyisocyanate in the presence of a blowing agent, a catalytic amount of a tertiary trimerization catalyst and 0À1-10 parts by wt. (per 100 parts by wt. of the polyisocyanate) of a C 1-6  monohydric halogenated alkanol (as accelerator for the catalyst). The condensation may be carried out in the presence of a polyol. In the examples mixtures of 2,4- and 2,6-tolylene diisocyanate and/or a polymethylene polyphenylisocyanate were foamed in the presence of as catalyst 1,3,5-tris(N,N-dimethylaminopropyl) - s - hexahydrotriazine or 2,4,6 - tris- (dimethylaminoethyl)phenol, as accelerator a trifluoro- or trichloro-ethanol, a hexafluoro-2- propanol or a dibromopropanol, and as blowing agent a trifluoro-trichloro-ethane or monofluorotrichloromethane and optionally a polyalkylsiloxane-polyoxyalkylene copolymer, dibutyltin dilaurate or diacetate and/or a polyol which is (a) the propylene oxide adduct of the Mannich condensation product of phenol, diethanolamine and formaldehyde or (b) a propylene oxide adduct of trimethylolpropane.
Patent GB-488736-A (GB)
Title: Improvements in or relating to electric converters
IPC: H02M1/30
Filed: 1937-02-26
Abstract: 488,736. Mercury and other conducting- liquid switches. GENERAL ELECTRIC CO., Ltd., and DONALDSON, D. H. Feb. 26, 1937, No. 5841. [Class 38 (v)] A rotating vessel 4 has a centrifuged layer 2 of electrolyte into which dip periodically electrodes 8 on an insulating cylinder 9 rotatable on a spindle 10 on an arm 11 which rotates on a spindle 12 coaxial with the vessel 4. The angular velocities of the rotating parts are chosen so that the relative velocity between the electrodes 8 and electrolyte 2 at contact is zero and as a result the orientation of the cylinder 9 is fixed which allows connection to be made to the electrodes 8 by flexible connectors and avoids the use of slip rings.
Patent GB-737701-A (GB)
Title: Steroid ketals
IPC: C07J75/00
Filed: 1953-03-03
Abstract: The invention comprises a 17a -hydroxypregnane - 1,20 - dione 20 - ketal having the general formula <FORM:0737701/IV (b)/1> wherein R1 is hydrogen or an acyl radical of an unsubstituted monocarboxylic hydrocarbon acid containing from one to eight carbon atoms, inclusive, and wherein R is hydrogen or a lower alkyl radical containing from one to six carbon atoms and n is 1 or 2, and the preparation thereof by mixing together an alkane-1,2-diol or alkane-1,3-diol containing from two to eight carbon atoms inclusive, e.g. ethylene glycol, propane-1,2-diol, propane-1,3-diol, butane-1,2-diol, pentane-1,2-diol, 3-methylpentane-1,2-diol, hexane-1,3 - diol or octane - 1,2 - diol, and a 3-acyloxy or hydroxy - 17a  - hydroxypregnane-11,20-dione in the presence of an acid catalyst, e.g. m- and p-toluene sulphonic acids, naphthalenesulphonic acid, benzenesulphonic acid, o-chlorobenzenesulphonic acid, hydrochloric acid and sulphuric acid.  The reaction may be effected in an organic solvent between 20 DEG  and 200 DEG  C.  In examples R1 is hydrogen, acetyl and benzoyl.  3b  - Acetoxy - 17a  - hydroxypregnane - 11,20-dione is obtained by acetylating 3b -hydroxypregnane-11,20-dione, treating the 3b -acetate thus formed with acetic anhydride in the presence of p-toluene sulphonic acid to produce 3a ,11,20-triacetoxy-9(11), 17(20)-pregnadiene, the enol acetate of which is epoxidized at the 17(20-position with peracetic acid and the resulting epoxide is saponified with sodium hydroxide to produce 3b ,17a -dihydroxypregnane-11,20-dione, followed by acetylation.
Patent GB-201583-A (GB)
Title: Improvements in the lubrication of earth boring drills and other machinery working under similar conditions
IPC: E21B10/24
Filed: 1922-02-28
Abstract: Lubricants for crushing mills, the rolling cutters of rotary earth-boring drills, or other apparatus in which the lubricant is fed by the pressure of the flushing fluid, consist of a heavy-grade lubricant having its specific gravity made greater than unity by the addition of a heavy-pulverized mineral substance such as barium sulphate or lead oxide.
Patent GB-164028-A (GB)
Title: Improvements in or relating to apparatus adapted to be actuated by means of subaqueous explosions
IPC: G01S1/72
Filed: 1919-03-10
Abstract: 164,028. Boulding, R. S. H. March 10, 1919. Vibrations, indicating, recording, and registering. - Apparatus to be actuated by explosions or shocks comprises a microphone A in circuit with the primary C of a transformer, of which the secondary C' is connected with a sensitive relay D of Weston or other type which is so adjusted by means of a potentiometer E that the contacts F are normally closed. The contacts F are in circuit with a relay H which may be of the Post Office " Pattern B." When the resistance of the microphone A is reduced, such as by the shock of an explosion, the contacts F are opened and the armature J of the relay H is released to close a circuit to start recording or other mechanism. The relay H is adjusted so that the current normally passing through it is sufficient to keep its armature attracted but not to attract it when once it is released. The recording circuit thus remains closed until the relay H is re-set by the switch L.
Patent GB-753373-A (GB)
Title: Improvements in or relating to apparatus for the testing of self-synchronous devices
IPC: G08C19/46
Filed: 1954-03-01
Abstract: 753,373. Sliding jaw damps. BENDIX AVIATION CORPORATION. March 1, 1954 [March 30, 1953], No. 5961/54. Class 44. [Also in Group XXXVI] A self-synchronous transmission device is detachably fastened to the rotary support of a testing-machine by plural clamps (Fig. 2) mounted thereon, each of which comprises a headed post 40 on which a looking member 43 is angularly displaceable, and an L-shaped dog 41 whose short arm engages the support 10 and whose long arm has a projection 49, engaging a cam slot 51 of the locking member and connected thereto by a helical spring surrounding the post 40. After location of the device on the support 10, rotation of the cam locking members 43 urges the jaw 53 of dog 41 to engage the groove 60 in the body of the device, and subsequently the edge of cam slot 57 forces the dog downwardly to grip the flange 61 against the support 10.
Patent GB-827673-A (GB)
Title: Door locks for automobiles
IPC: E05B65/22
Filed: 1957-02-22
Abstract: 827,673. Sliding latches. AUSTIN MOTOR CO. Ltd., and WALL, H. R. Feb. 17, 1958 [Feb. 22, 1957], No. 5976/57. Class 44 In an automobile door lock in which a slam bolt 10 can be withdrawn either by a follower 11 turned by an external handle 12 or by a retractor 20 operable through a link bar 23 by an internal handle 24, the external handle 12 is locked against movement by an abutment member 25 pivoted at 26 on a cheek plate 14 and adapted to co-operate with the follower 11 The member 25 itself is operable by a key 30 from the outside or by the handle 24 and, in the event of it being moved to its locking position when the door is open, the member 25 is disengaged from the follower 11 by an abutment 31 on the bolt 10 when the door is slammed. The bolt 10 and the retractor 20 are guided by a stump 19 on the cheek plate 14, and the retractor 20 has a lost motion connection with a pin 22 on the bolt 10 and is provided with an abutment 27 so that on movement of the handle 24 from the shown neutral position, Fig. 1, to one of the two positions shown chain-dotted, the retractor 20 either withdraws the bolt 10 or else moves the abutment member 25 into the locked position whereby an abutment 32 on the latter member confronts the abutment 31 on the bolt 10. The member 25 is bifurcated to straddle a lever arm 28 carried by a barrel lock 29 which is operated by the key 30 to rock the member 25 into and out of engagement with the follower 11. The handle 24 is spring-biased to the neutral position, and the member 25 is provided with pips 25X for frictionally engaging the cheek plate 14 to assist retention of the member 25 in the adjusted positions by an over-centre spring (not shown). In another embodi- ,ment, Fig. 4 (not shown), the handle 24 ds spring-biased to the neutral position from the unlocked position only and the retractor 20, instead of operating the abutment member 25 directly, operates it through an intermediate member which it trips across a dead centre position, the link bar 23 being provided with a catch for retaining a sliding window in a closed position.
Patent GB-208442-A (GB)
Title: Improvements in the crossings of tramway tracks
IPC: E01B7/30
Filed: 1923-03-01
Abstract: 208,442. Ransford, R. B., (Maguire, G.). March 1, 1923. Crossings without movable parts.-A tramway crossing is cast as, or welded into, a single piece and the depth of the groove of each rail, such as A, gradually diminishes from the normal to a minimum just before the rail A meets the first of the intersecting rails I, the depth increasing to the normal from a point past the last of the intersecting rails. Specifications 9654/86 and 19465/04 are referred to.
Patent GB-1530654-A (GB)
Title: Ear muff or earphone
IPC: A61F11/14
Filed: 1976-02-16
Abstract: 1530654 Ear protectors EXEL OY 16 Feb 1976 [14 Feb 1975] 06018/76 Heading A3V [Also in Division H4] An ear protector comprises a hood 1 and snap-in fixing ring 2 an annular ring 12 of which may be surrounded by an annular skirt 13 of a sealing pad so that when the fixing ring is snapped into place the pad is removably retained between the ring 12 and an extension 8 on the hood 1. The pad may be filled with foamed plastics.