baber/WOPTO huggingface dataset:
Patent GB-621481-A (GB)
Title: Improvements relating to tube connections
IPC: A47C5/10
Filed: 1945-11-26
Abstract: 621,481. Fencing; handrails. TUBES, Ltd., and BETHELL, L. Nov. 26. 1945, No. 31800. [Class 45] [Also in Groups XIV and XXVIII] A tube connection for fences or railings comprises a wholly or partly hollow unitary fitting having one or more longitudinally slotted spigot parts b which are expanded within the tubes e by one or more cotters f driven through holes in the tubes. The cotter may extend through the tube, or one or more shorter cotters may be used each engaging only one slot. The edges of the slots may have notches d into which the cotter fits.
Patent GB-1456785-A (GB)
Title: Anionic polymerization of pyrrolidone
IPC: C08G69/24
Filed: 1974-07-18
Abstract: 1456785 Polymerizing pyrrolidone MONTEDISON SpA 18 July 1974 [23 July 1973] 31865/74 Heading C3R Pyrrolidone is polymerized in contact with a catalyst comprising an alkali metal pyrrolidonate and, as activator, a carbamate of a metal of Group I or Group II of the Periodic Table or ammonium carbamate. A co-activator may be present. In examples pyrrolidone is polymerized in the presence of potassium pyrrolidonate (obtained by reacting some of the pyrrolidone with potassium hydroxide) together with sodium, potassium and ammonium carbamates; in some instances acetylpyrrolidone, tetrafluoroethylene, silicon tetrachloride, toluene diisocyanate and phenyl isocyanate are present as co-activators.
Patent GB-1507038-A (GB)
Title: Manufacture of acrylic acid by oxidation of propylene with air in two separate catalyst stages
IPC: C07C67/00
Filed: 1975-07-30
Abstract: 1507038 Acrylic acid BASF AG 30 July 1975 [31 July 1974] 31866/75 Heading C2C In a process for the preparation of acrylic acid by the oxidation of propylene with a gas containing molecular oxygen in two spacially separate oxidation stages (a) using an acrolein selective catalyst at below 380 C. to produce a more than 80% propylene conversion and (b) an acrylic acid selective catalyst at below 350 C. to produce more than 80% aorolein conversion, the off-gas produced feed from condensable products is recycled in part to the first stage (a) and in part to the second stage (b) to give a molar ratio of propylene : oxygen : residual gases of 1 : 1À5-2À3 : 11-19; and a molar ratio of total propylene to total oxygen before and after the first stage and to total residual gases of 1 : 1À9-2À5 : 13-25 provided that the air and recycled off-gases are divided between the two stages so that 10-50% by volume of the total gas is added after the first stage and the reaction mixture is cooled by the addition to from 150 to 320 C. Conventional catalysts may be used and that in the first stage may be of composition where X is Zn, Mg, Sn, W, Ca, Ba, or Ti, Y is Li, Na, K, Rb, Cs, Al, In, Nb, Ta, Ga, or La and Z is Ge, P, As, V or Cr supported on a carrier and that used in the second stage may be where X is Cu, Fe, Nm, Sn, Sb or Co and Y is an alkali metal, alkaline earth metal, Zn or Cr.
Patent GB-200438-A (GB)
Title: An improved knife for the tapping of rubber trees
IPC: A01G23/12
Filed: 1922-11-22
Abstract: 200,438. Cheesbrough, F. J. P., (Northway, C.). Nov. 22, 1922. Cutting-appliances.-An appliance for tapping rubber trees comprises a tapered shank a around which a channel-sectioned knife c (sharpened at both ends) is held by a channel-sectioned guard f sliding on the shank a. The sides of the guard are joined by a bridge e.
Patent GB-1475156-A (GB)
Title: Automatic choke relief valves system for a suction pneumatic conveyor system
IPC: B65G53/58
Filed: 1974-07-18
Abstract: 1475156 Pneumatic conveyers REFACCIONARIA DE MOLINOS SA 18 July 1974 [27 July 1973] 31908/74 Heading B8A A pneumatic suction conveyer for, e.g. milled products includes a relief valve comprising an aperture in the conveyer line and a coverplate movably mounted on the line for free movement between a position closing the aperture and a position leaving the aperture open. In the Figure, the conveyer line is made up of straight tube portions and at each intersection a relief valve is provided. The valves comprise a plate 17 mounted for free swinging movement about pivot 18 such that if the suction in the line falls, the plate will swing away from the aperture 16 to allow discharge of an overload of material and entrance of air to assist conveyance of remaining material. Other embodiments of relief valves are shown, suitable for use in horizontal or vertical portions of pipeline.
Patent GB-1383945-A (GB)
Title: Process for the preparation of aminopropyl steroids
IPC: C07J43/00
Filed: 1972-07-07
Abstract: 1383945 Aminopropynyl steroids SANDOZ Ltd 7 July 1972 [12 July 1971] 31934/72 Heading C2U The invention comprises a process for preparing steroids (including D-homosteroids) bearing, at the 3-position and/or at the 17- position, both a hydroxy group and a (3-amino- 1-propynyl), group, wherein a corresponding hydroxy) (ethynyl)-substituted steroid is reacted with an aminomethanol in the presence of Cu, Ag or Au, or of a salt, adduct or complex of Cu, Ag or Au capable of providing monovalent ions thereof under the reaction conditions, and in the absence of an acid catalyst, the amino moiety of the (3-amino-1-propynyl) group and of the aminomethanol having the formula wherein R<SP>1</SP> and R<SP>2</SP> are each selected from H, C 1-4  alkyl, C 5-6  cycloalkyl, (C 1-4  alkylated)-C 5-6  cycloalkyl and phenyl-(C 1-4  alkyl), R<SP>2</SP> alternatively being C 2-6  alkanoyl, or R<SP>1</SP>, R<SP>2</SP> and the intervening nitrogen atom together signify a piperidino, pyrrolidino, hexamethyleneimino, morpholino or piperazino radical optionally substituted by 1 to 3 C 1-4  alkyl groups attached to ring carbon atoms thereof or to the 4-nitrogen atom of any piperazino radical. Exemplified products are 17α-(3-dimethylaminopropynyl)-17#-hydroxy mono-, di-, and trienes of the estrane series. Specified catalysts are Cu (metallic), CuCl, CuBr, CuNO 3 , CuOCOCH 3 , CuCN, AgCl, AgBr, AgNO 3 , AgCN, AuCl, AuBr and AuCN.
Patent GB-911394-A (GB)
Title: Improvements in or relating to hinged seats for closet and like pans
IPC: A47K13/00
Filed: 1960-09-16
Abstract: 911,394. Water-closet pans; closet seats. GAUNT, A. July 4, 1961 [Sept. 16, 1960], No. 31960/60. Class 26. A hinged seat for a closet or like pan 10 is formed with a rear extension 12, hingeably connected on one side to the main part 11 of the seat at 13 and on its other side by a hinge 14 to a fixed support, e.g. a wall 16. In the form shown the rear edge of the extension 12 is hingeably connected at 14 to a metal angle piece 15 in the wall and fixed by screws to a part 10<SP>1</SP> of the pan built into the wall.
Patent GB-1182740-A (GB)
Title: The Dyeing of Polyamides
Inventor: GROLL MANFRED
IPC: C09B47/24
Filed: 1968-07-04
Abstract: 1,182,740. Dyeing polyamides with phthalocyanine dyes. FARBENFABRIKEN BAYER A.G. 4 July, 1968 [13 July, 1967], No. 32005/68. Heading D1B. Polyamides e.g. synthetic super-polyamides are dyed from neutral or weakly acid dyebaths which contain a mixture of phthalocyanine dyes which have 2 to 3 sulphonic acid groups in the 4 or 5 positions of the benzene nuclei. Copper, cobalt, nickel and metal-free phthalocyanine dyes may be used. The dyeings produced have increased fastness to acid, bleaching, sulphur, exhaust fumes and light when compared with dyes having the sulphonic acid groups in the 3 or 6-positions.
Patent GB-335765-A (GB)
Title: An improved machine for forming the metallic fastening bands of cap closures
IPC: B21D53/36
Filed: 1929-10-23
Abstract: 335,765. Robinson, K. A. Oct. 23, 1929. Hollow - ware. - Bands, Fig. 17, are bent round, the ends interlocked, and one edge is flanged over to form the ring, Fig. 16, for holding closures on to bottles. The flat bands are stacked in a magazine 1 the lower band being fed to position above a semicircular die 3 by a reciprocated table 2. The table 2 carries a slidable plate 4 the recess 6 of which is in line with side recesses 5 on the table and receives a band from the magazine and pushes it up to position, the plate 4 being stopped short of this by a nut 12 coming against an abutment 14 thus leaving the band supported at its ends only, ready for the descent of hub die 15. The hub die then descends and forms the band into U-shape. A spring pressed work holder 16 supports the strip. Dies 19 then close in on on the straights of the U to complete the circle, the dies being timed so that the slot b in the band is pushed over the tongue a of the other end which is presented to it. The ring is ejected from the die 15, on the up stroke, bv a pair of spring pushers 21 released by rollers, rising with the die, and assisted by springs 21<a>. The ring on ejection is received on to radially split dies 23 which are expanded by a tapered cone 25 pushed in by a cam plate 27 and roller, Fig. 8. Several dies 23 are arranged round an indexed plate 24 which has a permanent brake 49. A spring supported U-cradle 41 assists the transfer of the ring from hub die 15 to expanding dies 23. As the plate 24 moves round intermittently by Maltese-cross like mechanism the ends of the ring are flattened by a lever actuated press die 28 at one station, one edge is bent over to, form a flange by rollers 36 which are moved up by a spindle 33, the band being supported during bending at its outside. by a circular wall 35 moved up with the spindle 33. The band is then released from the dies 23 by a rod 37 which pushes plug 25 back and so allows dies to contract by springs, the push of rod 37 also carrying a hook 39<a> over the band and on its return stroke scraping it off the dies 23 to drop down a shoot 40. A metal or cardboard disc may be fed to and held for insertion in the band by vacuum &c. before bending over the edge.
Patent GB-507830-A (GB)
Title: Range finders
IPC: G03B13/20
Filed: 1938-11-07
Abstract: 507,830. Range finders. VOIGTLANDER & SOHN AKT.-GES. Nov. 7, 1938, No. 32264. Convention date, Nov. 26, 1937. [Class 97 (i)] One of the objectives of a range-finder has a variable focal length in order that the images may be adjusted to equal size for any range to be measured. In the form shown, an ocular c co-operates with a semi-reflecting surface b and objectives a and d, e. The lens e is moved axially, to vary the focal length of the combination d, e, as the mirror f is rotated to bring the images into coincidence, in such a way that the images are maintained of equal size. Alternatively, the mirror f is fixed and the lens e is also moved transversely to bring the images into coincidence.
Patent GB-733372-A (GB)
Title: Manufacture of new anthraquinone vat dyestuffs
IPC: C09B5/28
Filed: 1952-12-19
Abstract: The invention comprises dyes of the formula <FORM:0733372/IV (c)/1> where R is an aromatic residue fused to the heterocyclic ring in the manner indicated, one X is hydrogen, the other being hydrogen or acylamino, and the Y's are hydrogen or halogen.  They are made by carbazolizing the corresponding trianthrimides.  The products dye or print cotton, linen, artificial silk, regenerated cellulose, silk, wool, nylon and superpolyurethanes.  In examples, (1) the condensation product from 4 - chloro - 1,11 - dianthrimide and 4 - aminoanthraquinone - 1,2(N) - benzacridone or its 31,51 - dichloro-, 31 - phenoxy -, or 51 - phenyl derivatives or the corresponding naphthacridone is carbazolized with aluminium chloride and pyridine; (2) the condensation product from 4 - (411 - amino - 111 - anthraquinonyl) - aminoanthraquinone - 1.1(N) - 11,21(N) - benzacridone and 1-chloro- 4- or 5-benzoylaminoanthraquinone is carbazolized with sodium-aluminium chloride or aluminium chloride mixed with b -and g -picoline; (3) the aminodianthrimide obtained by condensing 1-amino-4-nitro-6,7-dichloranthraquinone with 4-chloranthraquinone-2.1(N)-1121(N)-benzacridone and reducing the nitro group with hydrazine hydrate is condensed with 1-chloranthraquinone and the trianthrimide is carbazolized as under (2).  A dyeing example with cotton is also given.  4 - Amino - 51 - phenyl - 2.1(N) - 11.2(N)-anthraquinone benzacridone is prepared by condensing 1-chloro-4-nitro-anthraquinone-2-carboxylic acid with 4-amino-1.11-diphenyl, ring-closing the 4 - nitro - 1 - (p - phenylanilido)-anthraquinone-2-carboxylic acid so obtained, and reducing the nitro group with sodium sulphide.
Patent GB-1046867-A (GB)
Title: An arrangement for clamping iron transformer cores
IPC: H01F27/26
Filed: 1963-08-15
Abstract: 1,046,867. Transformers. MASCHINENFABRIK OERLIKON. Aug. 15, 1963 [Aug. 22, 1962], No. 32369/63. Addition to 941,940. Heading H1T. An arrangement as described in the parent Specification for clamping the laminations of a transformer core comprising transverse clamping members for the yokes and clamping plates for the limbs pre-set in the manner of arched leaf springs in which the cross-section of the clamping plates has a moment of inertia I = k 1 d<SP>4</SP> where k 1  = 0À15 x 10<SP>-5</SP> to 1À1 x 10<SP>-5</SP> and d is the diameter of the circumscribed circle of the cross-section of the core. Formulµ are also given for the length of the clamping limbs and the extent to which they are pre-set out of the straight.
Patent GB-618194-A (GB)
Title: Improvements in and relating to lamp holders for circular lamps
IPC: H01R33/88
Filed: 1946-10-31
Abstract: 618,194. Electric lamp fittings. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 31, 1946, No. 32385. Convention date, Oct. 31, 1945. [Class 75 (iv)] [Also in Group XXXVI] Means for supporting a plurality of circular fluorescent lamps of different diameters one within the other and lying in different planes comprise a bracket 5 of sheet metal or moulded plastic formed in two parts, which mesh together to provide a recess for the electrical conductors 13 and securing means for the electrical connectors 11, 19. The upper end of a loop 6 of the bracket 5 is secured by a screw threaded nipple 7 to a supporting pipe and the lower end is formed with a supporting surface 10 on which a rubber or plastic electric connector 11, receiving the contact pins on the lamp base, is secured by the engagement of guide edges 15 on the bracket 5 with grooves 14 on the connector 11. A U-shaped spring clip pivotally mounted on the loop 6 holds the lamp in position. A further loop 18 of the bracket 5 supports a second lamp, the two loops 6, 8 being disposed at an angle to each other.
Patent GB-173491-A (GB)
Title: Improvements relating to the working of cross-current re-cooling devices
IPC: F28B9/04
Filed: 1921-12-02
Abstract: 173,491. Kohler, C. Dec. 27, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Cooling water by direct contact with cooling- media.-The cooling-water of locomotive steamcondensing plant and similar apparatus is caused to fall from elevated perforated pipes f in rigid jets which are cooled by the passage of air between them in direction III due to the motion of the vehicle in direction I. The cooled water falls into a chamber g, and after circulation is pumped or otherwise forced into chambers d, e with which the pipes f communicate. The speed of the jets is chosen so that they retain their rigidity throughout the length of their fall and that no particles of water are carried away by the air currents.
Patent GB-537380-A (GB)
Title: Container for storing gas samples
IPC: G01N1/22
Filed: 1939-12-18
Abstract: 537,380. Sampling gases for analysis. FIFE, J. G. (Naamlooze Vennootschap de Bataafsche Petroleum Maatschappij). Dec. 18, 1939, No. 32418. [A Specification was laid open to inspection under Sec. 91 of the Acts. June 21, 1940.] [Class 1 (i)] [Also in Groups XXIX, XXI and XXVIII] A container suitable for taking samples of gas diffusing from oil deposits comprises inner and outer gas-tight walls forming two chambers, each fitted with a charging and discharging connection and at least the inner wall being made from flexible material. Fig. 1 shows a container consisting of inner and outer envelopes 3, 5 formed of a flexible material such as that sold under the Registered Trade Mark "Cellophane" and having their upper and lower edges clamped between a metal stem 1 and an annular metal member 2. Gas may be supplied to, or withdrawn from, the envelopes 3, 5 through valves 12, 12A secured to a metal plate 6 by plugs 10. 10A which pass through and grip the envelopes. The plate 6 may be secured by a screw 14 to a panel 15 carrying pins 9, 9A which open the valves 12, 12A to place the envelopes in communication through passages 16, 17 in the panel with gas supply and discharge pipes 20, 20A. When the gas sample is to be analysed air is pumped into the envelope 3 to force the gas out of the envelope 5. Fig. 4 shows an alternative gas container comprising a "Cellophane" tube 5 secured in a glass cylinder 3A by a brass plate 51 at the lower end and by an additional piece of "Cellophane" 5A, rubber 53, and wire 52 at the upper end. The spaces inside and around the tube 5 are provided with gas connections 54, 55 opening with a chamber consisting of a metal or glass tube 60, a rubber tube 61, and rubber end pieces 63, 64. The end piece 64 carries gas tubes 20, 20A. By twisting the tube 61 either of the tubes 54, 55 may be connected to the pipe 20A. The gas sample may be sealed in the space between the glass tube 3A and tube 5 by clamping a rubber ball 56 against the orifice of the tube 55. The Specification as open to inspection under Sect. 91 describes the means for collecting gas from a space in a probing bore hole shown in Fig. 4 (Cancelled). Gas is first pumped from the space 41 by a pump 34 to the envelope 5, whilst a pump 33 discharges gas from the space 40 above the space 41 through a valve 31. The valve 31 is then closed and the valve 32 is then opened to allow the pump 33 to fill the envelope 3 from the envelope 5. The valve 32 is then closed and both pumps are operated to fill the envelopes to the required pressure. Means are also described for filling the gas collecting chambers by suction applied by allowing liquid to escape from a jar. This subject-matter does not appear in the Specification as accepted.
Patent GB-1391077-A (GB)
Title: Methods of forming blocks of wood veneer laminations
IPC: B27D1/08
Filed: 1971-07-09
Abstract: 1391077 Manufacture of veneer AARONSON BROS Ltd 19 June 1972 [9 July 1971] 32452/71 Heading B5L A method of forming a block of wood veneer laminations in which superposed wood veneer laminations have a curvature imposed upon them comprises pressing a batch of glued laminations 8 between upper and lower jigs 5, 1, of different curvatures, stopping pressing before the glue sets, adding a further batch of glued laminations 9, and pressing again until the glue is set. Several further batches of laminations may be added in sequence instead of just the one as shown, and after a certain number have been added the upper jig 5 may be replaced by one of shallower depth. The arrangement is such that the pressure is applied gradually to the laminations from the centre outwards, and the curvature of the uppermost lamination lies between that of the upper and lower jigs. As described the jigs are attached to the plates of a press and are covered with layers, e.g. 4, 7 of a resilient material, e.g. foamed polyurethane. The glue used may be a synthetic resin adhesive and may be set by heating. 40-50 layers may be present in each batch of laminations. The jigs may be U-section or sinusoidal and the upper one 5 may be attached to the press plate 14 by clips 15. After setting of the glue the block is trimmed square by a bandsaw and a thin wedge shaped portion removed therefrom so that when the block 16, Fig. 7, is cut into veneers by a horizontal blade 17 the cut is at a slight angle to the edge of each lamination and thus the veneers have the desired grain pattern.
Patent GB-230206-A (GB)
Title: Improvements in or relating to internal combustion engines of the diesel or constant-pressure type
IPC: F02M57/02
Filed: 1923-12-28
Abstract: 230,206. Frey, E., and Fischer, C. Dec. 28, 1923. Cam-actuated pumps ; stroke, varying ; regulating delivery by opening suction valves ; valvegear ; valves, arrangement of.-In a fuel pump for internal-combustion engines in which the plunger 5 is operated by a cam 3 and returned by a spring 6, direct transmission control gear such as the linkwork 17, 16. 14, 18 is arranged between the plunger and the suction valve 10 whereby the valve always closes at the same moment irrespective of the plunger stroke adjustment, which may be effected by a sliding arm 8 between the cam and plunger. In another form, the suction valve carries a coupling member or yoke engaged by a head on the plunger, and the plunger is screwed into the guide 4 to enable the moment of injection to be adjusted. Or this adjustment may be effected by means of a wedge between the guide 4 and the control arm 8.
Patent GB-1242657-A (GB)
Title: Motor vehicles with hydrostatic power transmission
Inventor: ISSIGONIS ALEXANDER ARNOLD
IPC: B60K17/14
Filed: 1969-06-27
Abstract: 1,242,657. Vehicle hydrostatic transmission arrangement; independent suspensions. BRITISH MOTOR CORP. Ltd. 7 May, 1970 [27 June, 1967], No. 32492/69. Headings B7D and B7H. The suspension control arm 1 of a vehicle having hydrostatic wheel motors supplied with fluid from an engine-driven pump, incorporates suspension bearing bush connections 3, 3A at least at its inner end, which bushes are arranged to act as high-pressure seals. Each bush comprises inner and outer metal shells 4, 5 spaced by an annular rubber member 6 in compression. The length/thickness ratio of each bush is such that undue axial deflection is prevented when one side of the bush is subjected to the fluid pressure. The bearing assembly is clamped to the vehicle at one end by a bell-shaped member 19. A pair of such control arms support at their outer ends a swivel pin for a wheel motor; the outer ends may comprise similar bearing assemblies or ball-joints. The transmission fluid also serves as a lubricant for the suspension and steering bearings. Specification 1,189,945 is referred to.
Patent GB-1532385-A (GB)
Title: Method and apparatus for detecting concentration of liqui
IPC: G01N21/59
Filed: 1977-08-03
Abstract: 1532385 Measuring liquid concentration KONISHIROKU PHOTO INDUSTRY CO Ltd 3 Aug 1977 [6 Aug 1976] 32492/77 Heading G1A [Also in Division G2] Apparatus for detecting liquid concentration comprises a cell for containing the liquid 9 and, between light source 11 and photo-cell 12, lattice screen member 4 and means 5, 13 for driving it so that liquid curtain forming portion 6 is dipped in and out of liquid 9. When a space portion 7 is opposite photo-cell 12, it receives light directly from source 11. Discriminator 17 separates the photo-cell signals due to light through portion 6 and 7 from each other and they are subtracted in circuit 19. If, for example the concentration of liquid developer being measured falls below a given value fed to comparator 20, drive circuit 21 is operated to supply concentrated developer. Circuit details are in Fig. 7 (not shown).