baber/WOPTO huggingface dataset:
Patent GB-500336-A (GB)
Title: Improvements in or relating to apparatus for drawing hollow metal bodies
IPC: B21D24/00
Filed: 1938-07-28
Abstract: 500,336. Cupping tubes. SCHLOEMANN AKT.-GES. July 28, 1938, No. 22466. Convention date, July 28, 1937. [Class 83 (iv)] Jn a tube-drawing push bench, the die holder 2 for the ring die 1 is held up, in operable position, by a bottom support 6 (or a pair of moving-apart supports), lowered, after a draw, by hydraulic or electric power 8, so that the ring and its holder is lowered on to the mandrel 5 without the use of at crane, and is carried back thereon, a crane holding the next size die-ring and holder in position to be lowered into position on the now raised support 6 ready for the next draw. Latches 14 which may be operated through connecting rods 13 by the support 6, clamp and unclamp the ring and holder 2 in the body 3 of the press so presenting it falling out forward.
Patent GB-241686-A (GB)
Title: Improvements in apparatus for producing yarns or threads of fibrous substances
IPC: D02G3/14
Filed: 1924-09-24
Abstract: 241,686. Gaskell, W., and Gaskell, M. Sept. 24,1924. Special yarns, producing.-In apparatus for drawing out compounded threads or fibres of horsehair or like springy and elastic material and binding the same together the horsehair or like threads a are passed through rollers c, c<1> and then through hollow rotating spindles f<1>, carrying bobbins f of binding-thread, to drawing- rollers d, e by which the threads are attenuated and at the same time bound with thread from the bobbin f. A flyer may be provided on the spindle f<1> to enable the winding to be effected closer to the nip of the rollers d, e. Two threads so produced may be delivered to an ordinary flyer and wound on to a bobbin thereby as a doubled thread.
Patent GB-315117-A (GB)
Title: Improvements in refining crude paraffin and the like
IPC: C10G73/42
Filed: 1928-08-03
Abstract: 315,117. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Aug. 3, 1928. Paraffin &c. wax, purifying.-In the oxidation of paraffin wax or similar hydrocarbon mixtures, the wax is first purified by treatment with dilute nitric acid or with gases containing small amounts of oxides of nitrogen in the presence of water, and subsequently washing the separated product with a base, such as lime or sodium carbonate. or with concentrated sulphuric acid. The washing with bases &c. may be combined with or replaced by steaming or bleaching or both.
Patent GB-249747-A (GB)
Title: An improved change speed gear
IPC: F16H63/30
Filed: 1925-09-10
Abstract: 249,747. Fornaca, G. Sept. 10, 1925. Variable-speed gearing suitable for railroad motor cars has epicyclic trains for its lower speeds brought in by brakes, and ordinary toothed pairs for its higher speeds brought in by friction clutches, the whole being pneumatically controlled. A gear 7 fast on the driven shaft 20 meshes with a gear 6 loose on the driving-shaft 10. The gear 6 is connected to the shaft 10 by two separate epicyclic trains 5, 3, 2, 1 and 5<1>, 3<1>, 2<1>, 1<1>. Thus two lowest speeds are effected by applying brakes to drums 4, 4<1> respectively. Gears 14, 14<1> fast on the shaft 20 mesh with gears 15, 15<1> loose on the shaft 10 and adapted to be connected thereto by cone clutches 13, 13<1>. The gears 15, 15<1> are slidable as a unit by a lever 17, Fig. 3, thrust to one side and the other by pneumatic pistons 19 19'. The brakes are preferably shoes 9, Fig. 2, contracted in pairs by two doubleended cylinders such as 12. Suitable selector means is employed.
Patent GB-614787-A (GB)
Title: Improvements in or relating to safety razors
IPC: B26B21/18
Filed: 1946-07-30
Abstract: 614,787. Safety razor. ADAMS, T. HAMILTON-. July 30, 1946, No. 22612. [Class 30] A safety razor has a guard 2 and a top member 6, both of soft magnetic material, with a permanently magnetised distance piece 3 interposed between the guard 2 and the blade 4 and so placed as to induce the top and guard members to be of opposite polarity. Specification 341,494 is referred to. The Provisional Specification also describes a construction in which the top and guard members are permanent magnets.
Patent GB-1325722-A (GB)
Title: Temperature sensing probe and cover
IPC: G01K1/08
Filed: 1970-07-14
Abstract: 1325722 Thermometers IVAC CORP 14 July 1970 [14 April 1970] 22662/72 Divided out of 1325721 Headings G1D and G1N A thermometer, particularly for medical use, comprises a probe 14 concentric with a mounting collar 13 and carrying a disposable sheath 12. As shown, the probe 14 is provided with a temperature sensing tip 16 which is connected by way of a cable 20 to electrical indicating apparatus, the tip 16 having a heat conductive shield 23 for engagement with a heat conductive cap 18 on the sheath 12. In use, a sheath 12 is mounted on the probe 14 by inserting the probe 14 in the open end of the sheath 12 and urging the sheath 12 against the bias of a coil spring 26, acting between the probe 14 and mounting collar, until a split ring 28 on the collar frictionally grips the sheath. Then, after a temperature measurement, a reject button 15 secured to the probe 14 is urged towards the collar 13 so that the sheath 12 is rejected from the probe 14 whereby a further sheath 12 can be subsequently fitted to the probe for a further temperature measurement. The sheath 12 and probe may be of thermoplastics material apart for their heat conductive parts which may be of Al, Cu, Au or Ag. The disclosure of the present Specification is substantially identical to the disclosures of co-pending Specifications 1325723 and 1325721.
Patent GB-1345364-A (GB)
Title: Vulcanisable blends of low-unsaturated olefinic copolymers  and of highly unsaturated rubbers
IPC: C08L21/00
Filed: 1971-04-19
Abstract: 1345364 Vulcanizable rubber blends MONTEOATINI EDISON SpA 19 April 1971 [27 Feb 1970] 22688/71 Headings C3P and C3Q Vulcanizable blends comprise (A) 20 to 90‹ by weight of at least one elastomeric copolymer having an unsaturation of 0À1 to 0À5 moles/kg. of ethylene, an alphaolefin and at least one diene which introduces into the copolymer double bonds which are fast curing in the presence of sulphur and accelerators, said diene being selected from conjugated diolefins, trienes having two double conjugated bonds, non- conjugated dienes having double vinylidene bonds, non-conjugated dienes having double alkylidene bonds, and non-conjugated dienes having tri- or tetrasubstituted double bonds, (B) 10 to 80% by weight of at least one rubber selected from natural rubber, 1,4-cispolybutadiene, polychlorobutadiene, synthetic 1,4-cis-polyisoprene, styrene-butadiene rubbers and butadiene acrylonitrile rubbers, (C) a curing system consisting of (a) 2 to 10 parts of sulphur per 100 parts by weight of the elastomers, (elastomeric copolymer plus rubber); (b) 1 to 10 parts of a sulphenamide accelerator per 100 parts by weight of elastomers. The alpha olefin of the terpolymer is preferably propylene and the diene is selected from 6-methyl-4,7,8,9-tetrahydroindene, 5,6-dimethyl-4,7,8,9-tetrahydroindene, 2-ethylidene-norbornene-5, 2-isopropenyl-norbornene-5, 4-methyl-tricyclo(6,2,1,0<SP>2-7</SP>)undecadiene-4,9, the sulphenamide being selected from N-cyclohexyl-2-benzothiazyl-sulphenamide, N- t-butyl-2-benzothiazyl-sulphenamide, N-oxydiethyl-2-benzothiazyl sulphenamide, N,N<SP>1</SP>- diethyl-2-benzothiazyl-sulphenamide, morpholine disulphide. The blends are formed by conventional mixing vulcanization being at 120- 220‹ C. for 1 to 120 minutes, tyres, conveyer belts, sheets, sheaths, tubes, gaskets and cables  may be made from the above blends.
Patent GB-204048-A (GB)
Title: Improvements in musical instruments
IPC: G10D1/06
Filed: 1923-09-10
Abstract: 204,048. Uzelac, N., and Cacciola, R. Sept. 18, 1922, [Convention date]. No Patent granted (Sealing fee not paid). Guitars, mandolins, etc.; soundboards and bellies.-In a mandolin or the like, the body of which is shown circular and the back of which is arched as at 2, an imperforate wooden belly 3 is secured in a detachable frame 4 held, with a sliding fit, on the walls 1, by the pressure of the bridge. The sound holes are pierced either in the frame 4 or in the walls. The neck is attached by screws passing through holes 11. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the fitting of the belly directly on to the walls, or on to an inturned flange thereon, and refers also to guitars This subject-matter does not appear in the Specification as accepted.
Patent GB-861958-A (GB)
Title: Improvements in or relating to brushes
Inventor: DEAR ALEXANDER THOMAS CAMERON
IPC: A46B13/00
Filed: 1957-07-18
Abstract: 861,958. Brushes. LEWIN ROAD SWEEPERS Ltd. July 18, 1958 [July 17, 1957], No. 22729/57. Class 19. Bristles 12 are secured in any suitable manner in a socket 13 having an enlarged end 14 that provides an abutment surface which limits outward movement of the bristle tuft formed by the bristles and the socket when the tuft is inserted into and pushed outwards of a stepped bore 15 in a stock 10 before a backing plate 17 is secured to the stock to positively secure the tuft in the stock. Specifications 830,451, 830,452, 830,453 and 830,454 are referred to.
Patent GB-647188-A (GB)
Title: Improvements in or relating to inflatable body-attachments for marine lifesaving
IPC: B63C9/125
Filed: 1948-08-28
Abstract: 647,188. Life jackets. FRANKENSTEIN & SONS (MANCHESTER), Ltd., P., and SILVERSTONE, J. Aug. 28, 1948, Nos. 22731 and 28481. [Class 77] A lifejacket incorporates two initially flat superimposed flexible sheets connected together marginally, and by a medial gusset so as to form two adjoined tripanel inflation chambers, to be disposed over the wearer's chest, which extend the full width of the appliance and intercommunicate with a secondary inflation chamber adapted to pass behind the wearer's neck. The inflatable part of the apparatus is formed from two superimposed sheets of waterproof material B having a circular neck opening C and is cemented together at the sides and round the neck opening C. The inner sheet B has a central longitudinal slit D connected by gussets E to the outer sheet to form two tripanel inflatable chambers F which lie side by side on the chest of the wearer. Another gusset G is cemented between the edges of sheets B which lie behind the wearer's head so that on inflation a secondary chamber H is formed which intercommunicates with the main inflatable chambers F by inflatable side chambers I which lie on each side of the neck opening C. In order to position the apparatus on the wearer an elastic band Q connected to the edge of the neck opening C by an apron P is provided and members M for tying the appliance at the waist are secured to the sheet,B at a reinforced region N behind the neck of the wearer and are carried by enclosing members O secured to the inner side of the inflated chambers F to the waist region of the apparatus. A tube (not shown) having a nozzle is provided for oral inflation' of the apparatus. In a modification a compressed gas cylinder contained within one of the chambers F may be used to inflate the appliance on pulling a cap of a release device. An inflatable horseshoeshaped collar S may be superimposed on the secondary inflation chamber H, the chamber within the collar intercommunicating with the inflation chambers F, H, I of the appliance.
Patent GB-876601-A (GB)
Title: Pyrimidine derivatives
Inventor: LAIRD ALAN HODGSON
IPC: C07D239/46
Filed: 1959-07-03
Abstract: The invention comprises compounds of the general formula: <FORM:0876601/IV (b)/1> and salts thereof wherein R1 represents an hydroxy or amino radical, R2 a hydrogen atom or an alkyl radical R3 represents a substituted phenylazo or phenylhydrazo radical of the formula:  <FORM:0876601/IV (b)/2> wherein R4, R5, R6 and R7 which may be the same or different each represent a hydrogen or a halogen atom, or an alkyl or an alkenyl radical, and the preparation of the phenylazopyrimidines by reacting a hydrazinopyrimidine of the formula <FORM:0876601/IV (b)/3> with a benzoquinone of the formula: <FORM:0876601/IV (b)/4> and of the phenylhydrazopyrimidines by reducing the corresponding azo compound (The phenylazo radical of the general formula:  <FORM:0876601/IV (b)/5> may be represented by the tautomeric formula:  <FORM:0876601/IV (b)/6> 4-Hydrazino -2,6- dihydroxypyrimidine is prepared from 4-chloro-2,6-dihydroxypyrimidine and hydrazine hydrate. Similarly prepared is 4-hydrazino-2,6-dihydroxy-5-methylpyrimidine. 4-Chloro-2,6-dihydroxy-5- methylpyrimidine is prepared by acid hydrolysis of the dimethyl ether.  2-Amino-4-hydrazino-6- hydroxypyrimidine is prepared from 2-amino-4-chloro-6-hydroxypyrimidine and hydrazine hydrate.ALSO:Azo compounds of the general formula:-  <FORM:0876601/IV(c)/1> wherein R1 is a hydroxy or amino radical, R2 a hydrogen atom or an alkyl radical and R4, R5, R6 and R7 are the same or different and are hydrogen or halogen atoms or alkyl or alkenyl radicals, are prepared by reacting a compound of the formula:-  <FORM:0876601/IV(c)/2> with a quinone of the general formula:-  <FORM:0876601/IV(c)/3> The reaction may be carried out in an inert diluent or solvent and in the presence of an acid catalyst.  Alternatively the reaction may be carried out in acetic or formic acid.ALSO:Pharmaceutical and veterinary compositions comprise at least one phenylazo or phenylhydrazo-pyrimidine of the general formula <FORM:0876601/VI/1> or a salt thereof in admixture with a non-toxic pharmaceutically-acceptable diluent or carrier.  In the above formula R1 represents a hydroxy or amino radical, R2 a hydrogen atom or an alkyl group, and R3 a substituted phenylazo or phenylhydrazo radical of the formula <FORM:0876601/VI/2> wherein R4, R5, R6 and R7 which may be the same or different represent hydrogen or halogen atoms or alkyl or alkenyl radicals.  The compositions may be for oral, parenteral or topical administration and may be in the form of tablets, aqueous or oily solutions or suspensions which may also be sterile, ointments or creams.  A cream useful for intramamnary injection contains 2,6 - dihydroxy - 4 - (4 - hydroxy - phenylazo) pyridine and polyethylene glycols.
Patent GB-301947-A (GB)
Title: Process for the manufacture of ethers of 6.8-dioxy-quinoline
IPC: C07D215/26
Filed: 1927-09-01
Abstract: 301,947. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Sept. 1, 1927. Mono- and di-ethers of 6: 8-dioxyquinoline are prepared by alkylation or from derivatives of 4- amino-1 : 3-resorcinol by Skraup's reaction. They possess active therapeutic properties. For example, 6-methoxy-8-oxy- and 6: 8-dimethoxyquinoline are obtained when 6 : 8-dioxyquinoline is treated with sodium ethylate and p-toluenesulphonic acid methyl ester. The former is also prepared from 2-oxy-4-methoxy-1-aminobenzene and the latter from 2: 4-dimethoxy-1-aminobenzene by Skraup's synthesis. The ethoxy derivatives are similarly prepared by using p-toluenesulphonic acid ethyl ester. 6-Methoxy-8-diethylaminoethoxyquinoline is prepared from 6- methoxy-8-oxyquinoline using sodium ethylate and diethylaminoethylchloride. 8-Ethoxy-6-diethylaminoethoxyquinoline is prepared from 4- amino-resorcin-3-ethyl -1 - diethylaminoethylether by Skraup's reaction. The diethers are also obtained from the mono-ethers by further alkylation. Specification 301,545 is referred to. 4-Amino-resorcin-3-ethyl-1 - diethylaminoethylether is prepared by reduction of the 4-nitroso compound obtained by treating 4-nitroso-resorcin- 3-mono-ethylether with diethylaminoethyl chloride.
Patent GB-606573-A (GB)
Title: Improvements in or relating to quick-action nuts
IPC: F16B37/08
Filed: 1945-09-07
Abstract: 606,573. Nuts. BESWICK, R. E. Sept. 7, 1945, No. 23098. [Class 89 (i)] Quick-action nuts of the type described in Specification 533,450 have three segments a seating in a hexagonal recess in the ring member b and fitted with an expanding ring c. The ring b is recessed to receive a retaining spring f that engages notches in the corners of the segments to prevent accidental relative axial movement when in the closed position. Complete removal of the segments is prevented by pins d engaging recesses e.
Patent GB-450732-A (GB)
Title: Improvements in or relating to pouches
IPC: F23C99/00
Filed: 1935-08-17
Abstract: 450,732. Indiarubber pouches. SPANEL, A. N., 23, Suburba Avenue, Rochester, New York, U.S.A. Aug. 17, 1935, No. 23199. Convention date, Aug. 31, 1934. [Class 133] [See also Group V] Seamless indiarubber pouches are formed with an end opening 6, Fig. 2, and an opening 7 in one side wall. The opening 7 may be of the form shown, or a narrower curved slit, a straight slit, or an elliptical opening may be provided. The strip 8 between the openings affords a means for retaining the article in the folded condition, the pouch being folded from the closed end and the folds engaged through the slot 7 as shown in Fig. 1. A form suitable for the production of the pouch by dipping in latex is shown in Figs. 15, 17, and comprises a generally flat body with the edges curved except for the lower one which is separated from a pair of fins 48 for supporting it during the dipping operation by an abrupt edge or shoulder 47. A panel 45, level with the general surface, is defined in one of the faces by a groove 49. As a result of the dipping operations a layer of latex is deposited, forming the body of the pouch 5, accretions of latex 10, 11 being formed around the areas intended to afford the openings 6, 7. The rubber deposited beyond the shoulder 47 is easily stripped away, leaving a cut or torn edge 12 around the re-inforced mouth opening ; The area enclosed by the re-inforcement 11 is cut away to produce the opening 7 after removal of the pouch from the form.
Patent GB-1510712-A (GB)
Title: Perforated embossed film to foam laminates
IPC: B29C69/00
Filed: 1975-05-28
Abstract: 1510712 Acoustically-insulating perforated foil-foam laminates SCOTT PAPER CO 28 May 1975 [4 June 1974] 23253/75 Heading B5N An acoustically-insulating laminate comprises an open-cell foam surfaced with a foil or film of water-impermeable material, the surface being embossed with a pattern of discrete crowns, sidewalls and valleys so that the foil or film conforms to the pattern, and the foil or film being bonded over substantially the entire contacting surface to the foam and having perforations disposed predominantly in the sidewalls and valleys. The laminate may be made by contacting the foam and foil or film between embossing rollers, which are preferably heated. The foam and foil or film may be preheated. If the temperature is sufficient, the foil or film is caused to follow the contours of the foam on the crowns. The perforations are formed during embossing. The foam is preferably polyurethane of thickness #-3 inch and 40-90 pores/in. and may be reticulated. The foil or film is preferably polyurethane or aluminium of thickness 1/10-20, preferably 4-8, mils. Other suitable component materials are listed. Preferred geometrical data relating to the pattern and perforations is given. Specified uses: wall panels, car headliners.
Patent GB-161546-A (GB)
Title: Improvements in electrical connecting and supporting devices
IPC: H01R13/62
Filed: 1920-08-07
Abstract: 161,546. Electric Outlet Co., Inc., (Assignees of White, E. C.). April 9, 1920, [Convention date]. Supporting ; brackets, electriclamp.-An electric appliance is supported by the members by which it is connected to the source of supply. Curved conducting and supporting blades are used and the weight of the appliance keeps the blades in place. A receptacle a has within it a metal strip i secured by screws k. Insulating-members b<3>, b<4>, b<5> clamped together by transverse bolts f are secured to the strip i and grip between them terminals g. These terminals each comprise a plate, formed with a curved recess g<1>, and a spring mounted clipcontact g<3> disposed at right - angles to the plane of the recess and at a sufficient distance from it so that one edge may co-operate with the recess in engaging a blade contact. An ornamental wall-plate m. is secured by screws l over the face of the receptacle. Curved conducting and supporting blades c are secured between insulating members in a metal casing p which has an upwardly projecting hook p<1>. When the blades c have been inserted into the upright slots b<1> in the wall fixture, and so engaged with the curved recesses g<1>, the bracket fitting o' is engaged with the lip p' by means of a bridge-piece o<2> fixed within the base of the fitting, Thus the weight of the fitting is transmitted to the blades c, holding them in place and supporting- the fitting.
Patent GB-811671-A (GB)
Title: Improvements in or relating to transistor circuits with varying input impedance
IPC: H03G11/00
Filed: 1956-07-27
Abstract: 811,671. Transistor limiter circuits; amplitude modulation; frequency shift radio signalling. PHILIPS ELECTRICAL INDUSTRIES Ltd. July 27, 1956 [July 30, 1955], No. 23295/56. Classes 40 (5) and 40 (6). A variable impedance device such as a limiter comprises a transistor having a current gain substantially equal to unity with input signals applied between base and emitter electrodes of such magnitude that the collector potential falls to zero during signal peaks to produce a change in emitter to base impedance. Fig. 1 shows a limiter comprising a junction transistor 1 coupled through a series tuned circuit 2, 3 to a signal source 4 having a resistance at resonance lying between the values of the transistor input impedance with the collector impedance equal to zero and infinity. When the input signal is sufficiently large the collector voltage falls to zero during positive signal peaks, increasing the input impedance of the transistor and so damping the resonant input circuit. Additional damping will occur if the negative peaks of the signal drive the emitter to its cut-off voltage. Fig. 4 shows a junction transistor in a common emitter circuit connected to a parallel tuned circuit. When the collector voltage falls to zero on signal peak the input impedance falls causing the damping of the circuit 12 to increase. The input oscillation may be amplitude modulated by varying the limiting level and this may be effected by varying the collector voltage across a resistor 17 by means of a transistor amplifier 16 connected to a modulating source 15. A decrease instead of an increase of damping on signal peaks may be obtained by connecting a parallel tuned circuit instead of a series tuned circuit to the common base circuit or a series tuned circuit instead of a parallel tuned circuit to the common emitter circuit. Fig. 5 shows a detector for frequency shift telegraph signals. The signals are, fed through a circuit 21 tuned to the two frequencies to two transistors 23, 24 arranged to operate as limiters as previously described. The output from these transistors is fed to detecting transistor 26, 27 feeding the two windings of a differential relay 25. The use of a common collector impedance for the transistors 23, 24 causes the increased damping on signal peaks to be effective simultaneously in both of the transistors 23, 24. Accordingly noise signals having a wide frequency spectrum are less likely to cause false operation. The use of a common emitter impedance 29 for the transistors 26, 27 increase the sensitivity of the circuit.