baber/WOPTO huggingface dataset:
Patent GB-972108-A (GB)
Title: Improvements relating to the treatment of aluminium surfaces
IPC: C23G1/12
Filed: 1963-08-28
Abstract: In the pickling of the surface of aluminium and alloys thereof using a solution containing from 3 to 100 g./l. phosphoric acid and from 1 to 15 g./l. hydrofluoric acid, aluminium is removed from solution by adding sodium or potassium ions, e.g. in the form of an oxide, hydroxide, carbonate, fluoride or phosphate, to precipitate an aluminium fluoride.  The aluminium content is preferably kept between 0.5 and 10 g./l., to prevent excess potassium and sodium ions from being present in the solution. The solution may also contain organic solvents and surface active agents.  To avoid spray caused by the evolution of hydrogen, the surface may be covered with an organic solvent, a layer of foam or a synthetic resin float.  The precipitation may be carried out when the solution is not in use. The temperature is between room temperature and 60  DEG C.
Patent GB-1217805-A (GB)
Title: Amino-guanidine derivatives
IPC: C07D233/52
Filed: 1969-07-07
Abstract: 1,217,805. Aminoguanidines. BOEHRINGER MANNHEIM G.m.b.H. 7 July, 1969 [9 July, 1968], No. 34186/69. Heading C2C. Novel aminoguanidines of the general formula wherein X is a phenyl radical substituted by one or more halogen atoms, and salts thereof with physiologically compatible acids are prepared (a) by reaction of a hydrazine of the general formula XNHNH 2  with an amidine of the general formula wherein Z is C 1-4  alkoxy, alkylthio, N-pyrazolyl, N-imidazolyl, N-triazolyl, N-tetrazolyl or amino group; (b) when R 1  and R 2  are hydrogen atoms, by reaction of a hydrazine of the second general formula above with cyanamide; and (c) by reaction of an aminoamidine of the general formula with ammonia; followed optionally by salification of the resulting product with a physiologically compatible acid. The novel aminoguanidines are stated to be valuable pharmaceuticals for the regulation of blood pressure, particularly in the treatment of hypertonia.
Patent GB-1518218-A (GB)
Title: Method and device for demoulding hollow synthetic resin bodies which have been blow-moulded by means of a nozzle and a mould
IPC: B29C49/00
Filed: 1976-08-17
Abstract: 1518218 Blow moulding SOLVAY & CIE 17 Aug 1976 [18 Aug 1975] 34200/76 Heading B5A A blow moulded article 18 is demoulded by blowing air at the bottom of the article from a nozzle orifice positioned in the lower half of the article and, after the nozzle has been retracted from the mould, causing an ejector 11 to act externally on the neck of the article. After cooling of a biaxially stretched and blown acrylonitrile bottle 18, the bottom of the mould is removed and the mould halves 16, 17 are separated by less than the bottle diameter. The neck of the bottle is initially gripped by dogs 8 pivoted at 9 and held closed by elastic ring 10. During ejection the dogs are sprung open by withdrawal of the bottle. Pressure fluid, e.g. air, nitrogen or carbon dioxide is supplied from a line 5 through a conduit 6 in a piston 2, through apertures 7 into the space between the piston 2 and a sleeve 4, and out of the nozzle so-formed into the bottle. The fluid also acts on a piston 3 and causes piston rod 2 to descend to assist ejection. The blowing nozzle is withdrawn from the mould causing any bottle not properly ejected to be stripped by contact with the mould shoulders 21. Pressure fluid is applied from line 13 to cause a piston 11 to push off any preforms which have not been properly blown and are still retained on the nozzle. The piston 11 also pushes the dogs 8 down against shoulders 15 to open the dogs and ensure release of the preforms.
Patent GB-447983-A (GB)
Title: Means for the reproduction of films
IPC: G03B27/08
Filed: 1934-11-28
Abstract: 447,983. Photographic contact-printing apparatus. PROJECTOR AKT.-GES., 17, Loewenstrasse, Zurich, Switzerland. Nov. 28, 1934, No. 34221. Convention date, Nov. 29, 1933. [Class 98 (ii)] Photographic contact - printing apparatus especially for films of low light-sensitiveness has a feed track with a guide surface curved transversely of the film and wholly or partly concave towards the copying light. As shown in Fig. 1, the supports 1 carry a frame 2 on which the bearings 3 of a large wheel 4 are fixed. The guide surface of the wheel 4 is wholly concave, as shown at 5 in Fig. 3, or is substantially concave with flat or convex edges. The wheel 4 is of metal and the guide surface is rendered non-reflecting. Supports 31 on the frame 2 each carry two film spools. The original film 9 passes from the spool 10 over guide roller 14 and sprocket A through the copying zone to sprocket B, guide rollers 15, 16, sprocket 17, and the take-up spool 23. The sensitive film 11 is fed from the spool 12 to guide rollers 18, 19, 20 and sprocket A, past the mercury vapour printing lamp 34 to sprocket B, guide rollers 21, 22, and the take-up spool 13. The sprockets B and 17 are electrically driven, and the wheel 4 is driven by frictional engagement therewith of the films. The film 11 has a slightly longer perforation gauge than the film 9, and the sprocket A is braked to tension the film 9 more than the film 11. A scale showing the braking efficiency is provided. A temperature-adjusting device 24 is provided for the wheel 4. One film may be unperforated. Bichromated-gelatine films are referred to. Specification 448,015 is referred to.
Patent GB-1259815-A (GB)
Title: N-phenyl-anthranilic acid derivatives
IPC: C07D333/38
Filed: 1969-03-20
Abstract: 1,259,815. 2 - Acylamino - 2<SP>1 </SP>- carboxydiphenylamines. ROUSSEL UCLAF. 20 March, 1969 [20 March, 1968; 20 June, 1968 (2)], No. 34269/71. Divided out of 1,259,814. Heading C2C.  The invention comprises compound of formula wherein R is H or an aliphatic group; R 2  is H, a C 1-5  aliphatic group, aryl (unsubstituted, or at least disubstituted), an araliphatic group, furyl, 3-pyridyl or thienyl; and X 1 , X 2  are each H, halogen (=Y), alkyl, alkoxy, CY 3  or NO 2  but may not be Y, alkyl or CF 3  when R 2  is Ph. These compounds are prepared by reacting the corresponding o-aminodiphenylamine with (R 2 )- CO 2 H or a functional equivalent thereof.
Patent GB-321078-A (GB)
Title: Large aperture lenses with improved colour correction
IPC: G02B9/34
Filed: 1928-11-22
Abstract: 321,078. Lee, H. W., and Kapella, Ltd. Nov. 22, 1928. Lenses. - A photographic objective corrected for spherical aberration, coma, astigmatism and distortion and also having substantially the same focus and focal length for all the colours of the visible spectrum, comprises two dispersive menisci between two collective lenses. The dispersive lenses are cemented doublets and the collective lenses cemented doublets or triplets, consisting of a dispersive flint glass lens cemented to a crown glass lens or between two such lenses. The glasses are chosen so that the ratio of dispersion of the flint glasses for the rays F and G' of the spectrum to that for the rays C and F does not differ by more than 3 per cent from the corresponding ratio for the crown glasses. Numerical data are given in the Specification for a lens having an aperture of F/2 and an angular flat field of 40‹. Specification 157,040 is referred to.
Patent GB-488830-A (GB)
Title: Improvements in steering devices for transport trailers
IPC: B62D13/02
Filed: 1937-12-11
Abstract: 488,830. Steering trailer vehicles. MEILLER, F. X., and MEILLER, J., (trading as MEILLER, F. X., [Firm of]). Dec. 11, 1937, No. 34326. Convention date, Dec. 10, 1936. [Class 79 (v)] A trailer vehicle body a is mounted on turntables d, d<1> on two multi-axled bogies each having a single steerable axle f or f<1> controlled either by a removable draw-bar g or by a perch i or i<1> sliding in a sleeve k pivoted at h on the body a, the pivot h being between the steering axle and the turntable and nearer to the axle than to the turntable axis. The pivots h are preferably adjustable transversely of the central axis of the body a, in order to make the trailer follow a different path to that of the tractor, if desired. The steering-axle f which is connected to the draw-bar g is disconnected from the perch i, but the other steering axle f<1> is locked at l<1> to its perch i<1> so as to remain perpendicular thereto. When the trailer is to be drawn in the reverse direction, the draw-bar g is removed from the axle f and connected to the axle f the axle f being then locked at l to its perch i so as to remain perpendicular thereto.
Patent GB-1139548-A (GB)
Title: Magnetic chucks
Inventor: STEAD CLIFFORD
IPC: B23Q3/154
Filed: 1967-05-26
Abstract: 1,139,548. Magnetic work-holder. TAFTPEIRCE MFG. CO. 26 May, 1967, No. 34392/68. Divided out of 1,139,547. Heading HIP. The subject-matter of the Specification is identical with that disclosed in Specification 1,139,547, but the claims relate to adjusting the degree of reciprocation of the magnet assembly using two eccentrically mounted pins or cylinders connected between the assembly and the operating handle.
Patent GB-301087-A (GB)
Title: Process for the manufacture of thymol and menthol
IPC: C07C37/00
Filed: 1928-11-23
Abstract: 301,087. Schering-Kahlbaum Akt.- Ges. Nov. 24, 1927, [Convention date]. Thymol and menthol are obtained by heating oxythymol of the formula with hydrogen in the presence of a hydrogenation catalyst such as nickel, whereby water is split off and at the same time two or eight atomic proportions of hydrogen are respectively taken up. The reaction may be effected under pressure or in the presence of a. solvent such as menthane. In addition to the hydrogenation catalyst, a porous catalyst may be present such as bleaching, Florida or fuller's earths, siliceous clays, the material known under the registered Trade Mark " Frankonite," diatomite or kieselguhr, or the hydrogenating metal may be precipitated on the porous catalyst. Examples are given. Specification 273,685 is referred to.
Patent GB-513301-A (GB)
Title: Improvements in the production of lampblack and byproducts by the decomposition of gaseous, liquid or solid hydrocarbons
IPC: C09C1/48
Filed: 1937-12-14
Abstract: 513,301. Carbon; hydrogen; hydrocarbons. SOCOLESCU, G. Dec. 14, 1937, No. 34618. Void. Convention date, Dec. 15, 1936. [Class 90] [Also in Group IV] Gaseous, liquid or solid hydrocarbons are converted into lampblack and other substances such as hydrogen or hydrocarbons, e.g., methane, acetylene, benzene and naphthalene by making the substance to be treated an electrode across which and another electrode of like or dissimilar constituents, an. electric discharge is passed. The hydrocarbon to be treated may be mixed with coke-like filler and formed into an electrode, e.g., a mixture of coke and tar, which may be in the proportion of 80 per cent. petroleum coke and/or coal and 20 per cent. tar. The surrounding atmosphere may be free from oxygen.
Patent GB-401897-A (GB)
Title: Improvements in educational appliances
IPC: G09B23/04
Filed: 1932-12-07
Abstract: 401,897. Drawing templets ; protractors. DIXON, E. L., 2206, Elsinor Avenue, Baltimore, U.S.A. Dec. 7, 1932, No. 34699. [Class 97 (iii).] A drawing- appliance for tracing polygons &c. comprises a sheet 1 of substantially rigid material provided with one or more polygonal cut-outs having marks 13 provided along the sides, dividing them into segments in the same ratio for each such side whereby similar polygons of different sizes may be formed. The cut-outs represent triangles, quadrilaterals, pentagons &c. all, except the regular pentagon, having angles which are multiples of 5‹ and 10‹. A protractor 18 is provided, having 5‹ and 10‹ measurements as shown and slots 20, 20<1> overlapping slightly and formed with discontinuous parts 21 serving to unite the protractor rigidly to the main body of the device. Scales 22, 23 are provided, and also spaced apertures 24, 241, 25-27 to facilitate the ruling of parallel lines. Two sets of serrations 28, 29 enable dotted or similar lines to be drawn.
Patent GB-613601-A (GB)
Title: Hand-press for eyeletting, perforating and kindred operations
IPC: B26D5/18
Filed: 1946-11-25
Abstract: 613,601. Punching machines. PAPER FASTENERS, EYELETS & METAL SMALLWARES, Ltd., GLASSPOOL, J., and BISHTON, A. H. Nov. 25, 1946, No. 34840. Addition to 583,702. [Class 31(ii)] [Also in Group VII] A hand-press for punching or eyeletting according to the parent Specification and having a lever member 8 which is fulcrummed between two cheeks of the body 3 by a hook 9 and cross pin 12 and is stressed by the spring 13, is characterised by the plunger 6 being spring loaded by the spring 16, and in that the plunger cooperates with the underside of the lever 8 through an anti-friction device. The latter may be a hardened steel ball 19, located in a recess in the top of the plunger and retained therein by spinning over the edge 21.
Patent GB-429953-A (GB)
Title: Improvements in or relating to party-line telephone systems
IPC: H04Q5/20
Filed: 1933-12-11
Abstract: 429,953. Direct - call party - line systems. STANDARD TELEPHONES & CABLES, Ltd., SEARLE, A. M., and McWHIRTER, E. M. S., Connaught House, Aldwych, London. Dec. 11, 1933, No. 34867. [Class 40 (iv)] .A system in which calls may be made by, guards, drivers, &c., from any one of a number of railway signalposts to a signal-cabin over a common twowire line is designed so that (1), the only manually - operable means at a signal-post is a selector-key which transmits a signal to indicate the identity of the calling post; (2) no battery or earth connections are employed at the signal-posts and no current normally flows over the line; (3) when the line is busy the connections to the batterypoles at the signal-cabin are reversed with the result that if a call is initiated at another signal-post, interference is impossible and a busy-indicator is operated ; and (4) a bell at the signal-cabin rings whenever the receiver there is off its hook and the system is not at normal. If a call is initiated at the signalpost shown in Fig. 2 when the line is not in use, the rotation of code-wheel P by the operation of a winding-key completes a circuit from positive battery over line L2, spring Q, wheel P, left-hand winding of relay L, rectifier RA, line L1, and relay IR to negative battery. Relay L locks mechanically and relay IR energizes relays A, B which connect up bell BL and reverse the battery connections to the line. Impulses representing the number ber of the post are transmitted at springs Q, R, and repeated by relay IR to indicator M in parallel with relay C. The removal of the receiver or handset at the signal-cabin bridges terminals T1, T2, energizing relay SS which disconnects the bell. Talking current is fed to both parties in parallel over coils FC. When the cabin receiver is restored and release key RK is closed, relay H operates overindicator off-normal contacts MN operating C and a pendulum relay PR which supplies impulses to the indicator M. When this reaches normal, the opening of contacts MN releases relay B so that the direction of current in the line is restored to normal and relay A operates in series with the releasing (righthand) winding of relay L over rectifier RB. The release of relay L releases A, C, H. If the cabin receiver is not restored when the release key is operated, the bell rings over contacts ss1, ir1, and c2 or MN. When the line is in use and therefore has reversed battery on it a busy indicator BS is operated over rectifier RC and contacts P, Q, if another call is initiated, the indicator remaining locked over its own contacts until the line becomes free. One signal-cabin may serve two party-lines, a change-over key being provided for connecting the telephone instruments with whichever line is calling. The Provisional Specification describes a similar system differing in its detailed circuits.
Patent GB-459528-A (GB)
Title: Indicating device for liquid-filled electrical apparatus
IPC: G08B21/00
Filed: 1935-07-08
Abstract: 459,528. Transformers. BUCHHOLZ, M., 1, Amalienstrasse, Kassel, Germany. July 8, 1935, No. 35084/36. Convention date, July 26, 1934. Divided out of 461,008. [Class 38 (ii)] An indicating device for detecting the presence of gases of decomposition &c. in liquid filled electrical apparatus comprises a float in a vessel which moves when the liquid level is depressed by gases collecting and mechanically operates an indicating member which gives a visible indication. In the form shown, a pivoted indicator disc m has a float q attached to it, the disc having opposite white sectors and intermediate red sectors and the glass s having opaque white sectors, so that, normally, only white shows, but when gases are present red shows. A cock h is provided to enable the vessel g to be filled with liquid. In a modification of this, the disc is mounted at the back of the case to enable the colour of the gases to be judged. In this form the front glass is clear and the back of the case has white and red sectors and the disc has a black and a white sector opposite each other and is cut away between. In a further modification, the disc with floats is mounted on a vertical axis with helical grooves so that rotation occurs as the floats move up or down. In this form, an inclined mirror may be provided to facilitate viewing. In the supply tube w, a byepass tube may be provided so that the liquid can pass out more readily as the gases enter.
Patent GB-726317-A (GB)
Title: Improvements in screwless electric wire connectors
IPC: H01R4/48
Filed: 1953-12-16
Abstract: 726,317. Wire couplings. MORSCHEL, F. Dec. 16, 1953, No. 35087/53. Class 38 (1). A wire connector comprises an insulating casing 1 open at one side, a contact bar 11 (Fig. 3), and springs 12 separated and insulated from each other by a stud 13 integral with the casing. The wires to be connected are inserted through apertures 6, 7 in the casing and are pressed on to the contact bar 11 by the springs. Members 15 passing through slots 16 in the casing have forked ends 17 which straddle the contact bar and which engage the springs 12 so that the latter can be pushed up when the wires are withdrawn. A closure member is provided for the casing and both the casing and this member may be of resilient material.
Patent GB-1222784-A (GB)
Title: Voltage or current to frequency converters
Inventor: VRIES JAKOB DE
IPC: H03K7/00
Filed: 1969-07-11
Abstract: 1,222,784. Voltage to frequency converter. LANDIS & GYR A.G. 11 July, 1969 [18 July, 1968], No. 35103/69. Heading H4L. A voltage or current to frequency converter comprises a Miller type integrating operational amplifier 3 comprising feedback capacitor 5 and input resistor 1, a threshold switch 7 receiving the ramp voltage U 2  being the integral of the voltage U 1  to be converted, a bi-stable device 11, having a trigger input 13 fed by a pulse generator 15 and an inhibiting input 10 fed by the output of switch 7 such that with U 2  below the threshold of switch 7 the bi-stable is rendered non-responsive to its trigger input, and a constant current generator 17, feeding, under the control of the output of bi-stable 11, a discharge current I 0  to the capacitor 5. Thus bi-stable 11 is switched by the next two pulses form generator 15 after the threshold attainment of U 2  and causes the transistor 23 to block whereby current T 0  is forced to discharge capacitor 5 for the pulse period T 0 . At the end of this period U 2  recommences to rise until the threshold is next reached. The period of the sawtooth output U 2  having sloped alternately proportional to U 1  and -I 0 , will vary from period to period but will be in multiples of T 0  and will average out in a long time reading frequency meter fed by the corresponding pulse output 12 of bistable 11 to a pulse repetition period accurately proportional to U 1 . To ensure constancy of the period T 0 , generator 15 may comprise an astable multivibrator synchronized by the mains frequency, Fig. 2 (not shown).
Patent GB-942696-A (GB)
Title: Improvements in spray heads
IPC: B05B1/26
Filed: 1961-09-29
Abstract: 942,696. Spray producers. V. J. BEDDOW. Sept. 29, 1961, No. 35110/61. Heading B2F. A spray head 6 comprises a fine annular passage formed between a pin member 7 fixedly mounted in the head and bore formed in the head, and a barrier member adjustably located on the pin member 7, the barrier member being formed by an enlarged head 10 of a longitudinally split sleeve 9 which is a tight sliding fit on the pin member 7. The head 6 is formed by a cap portion 4 screwed on to a body portion 1 fitted with an inlet filter 5. A bridge piece 8 is fitted across an extension 3 of the body 1 and the pin member 7 may be brazed to the bridge piece. The sleeve 9 is split longitudinally except at the enlarged end 10 (Fig. 1, not shown). The pin member may be bent as at 12 to prevent loss of the sleeve 9.
Patent GB-1170724-A (GB)
Title: Motor Vehicle Suspension System
IPC: B60G21/055
Filed: 1968-07-24
Abstract: 1,170,724. Motor vehicle suspension system. SOC. ANON. ANDRE CITROEN. 24 July, 1968 [1 Aug., 1967], No. 35344/68. Heading B7D. A motor vehicle suspension comprises a pair of wheels in alignment on opposite sides of the vehicle, each being rotatably mounted upon a horizontal longitudinal arm 2 rotatably mounted upon a transverse tubular member 7 and connected to a torsion bar portion 6 extending coaxially within the transverse member 7 to which the torsion bar portion 6 is connected at a point remote from its end, the transverse tubular member being connected to the vehicle by means of an elastomeric sleeve 8 so that the sleeve operates both as a torsion member and as a vibration filtering member between the arm 2 and the vehicle body. The arm 2 includes a hub 3 mounted by needle or roller bearings 5 on an end portion 13 of the transverse tubular member 7 and connected through a ring 16 and disc 15 to the outer end of the torsion bar, which comprises a single bar connected centrally to the transverse member 7 through a splined member 23, and located by a screw 25. In a modification, the torsion bar comprises separate portions 6a (Fig. 4), connected by a screw 26. In a further modification, Fig. 5, the member 23 is in two parts connected by screws 27 with an interposed metal disc or annulus, and the torsion device is a continuous bar or separate portions located by circlips 28. The torsion bar can be adjustably preloaded by relative rotation of the ring 16 and disc 15. The elastomeric sleeve 8 may be of rubber bonded directly to the tubular member 7 and to the vehicle body or may be bonded to concentric metal sleeves 9 and 10 connected to the tubular member and vehicle body respectively. The tube 7 and rubber sleeve 8 may act in series with the torsion bar device 6. The rubber sleeve 8 additionally cushions vibrations of transverse member 7.
Patent GB-1122655-A (GB)
Title: Magnetic tape cartridge
IPC: G11B23/04
Filed: 1965-08-18
Abstract: 1,122,655. Tape cartridge. LEAR JET INDUSTRIES Inc. 18 Aug., 1965 [31 Aug., 1964], No. 35435/65. Heading G5R. A cartridge 15 for a multi-track endless magnetic record tape 20 and for use in the combined radio and record tape player described in Specification 1,122,652, comprises notches 34, 32 along one side 31 of the cartridge which co-operate with a spring-loaded roller 28 on the player for holding the cartridge in " out of play " and " play " positions respectively, a pinch roller 17 and pressure pad means (not shown) which co-operate respectively with capstan 19 and playback head 23 on the player when the cartridge is in the play position. The coil of tape 20 is supported on a spool 50 rotatably mounted on the base of the cartridge, means (not shown) being provided for separating the outer tape convolutions as they are formed about the coil and for maintaining the coil flat on the spool base.