baber/WOPTO huggingface dataset:
Patent GB-661646-A (GB)
Title: Improvements relating to boiling vessels
IPC: B01B1/00
Filed: 1949-11-28
Abstract: 661,646. Mixing appliances. SOLLICH, R. Nov. 28, 1949. No. 30487/49. Class 86. A boiling vessel is adapted to be heated by external heating means and is provided with a rotating stirrer wherein the stirrer is provided with blades which are shaped to conform with the heated part of the vessel and extend adjacent thereto and wherein the blades are mounted on a shaft extending within the vessel at an acute angle to the vertical. As shown, a boiling vessel 3 supported by a base 9 is provided with a filling opening 1 and a vapour discharge pipe 2 in the upper part of the casing and with a discharge opening 12 at the lowest point of a jacketed spherical bottom. A stirrer 6 is adapted to rotate about a shaft 7 which is inclined at an angle to the vertical. The shaft passes through a stuffing box 8 or a'stand pipe 8a in the bottom of the container and is coupled by worm gearing or by infinitely variable gearing with a motor supported by the base 9. In alternative construction the shaft is introduced obliquely from above the vessel and is carried on an upwardly extending support near the vessel and such support may carry the vessel by means of a pivoted or fixed framework and a second support may be provided on the opposite side of the vessel.
Patent GB-1106099-A (GB)
Title: Novel, 9ª‰,10ª‡-steroids and a process for the manufacture thereof
Inventor: REERINK ENGBERT HARMEN
IPC: C07J75/00
Filed: 1965-07-19
Abstract: The invention comprises 3-keto-D 4, 3-keto-D 4,6, 3-keto-D 1,4, 6 and 3-acyloxy-D 2,4,6-derivatives of compounds of formula <FORM:1106099/C2/1> wherein R1 is a free, etherified or esterified hydroxy group, R2 is a free, etherified or esterified hydroxy group and R3 is a hydrogen atom or an alkyl, alkenyl or alkynyl group or R2 and R3 in combination form a keto group, and their preparation by (a) alkaline hydrolysis of a 4-halo-compound, optionally in the presence of an alcohol, (b) acid cleavage of a 4,5-epoxide, (c) reaction of a 4-unsubstituted compound with a strong base in the presence of oxygen, (d) reaction of a 3-keto-D 5-compound with lead tetra-acetate, (e) reaction of a 3-keto-D 4-compound with iodine and silver acetate, and dehydrating the 4,5-diol obtained, (f) reduction of a 17-keto-compound to a 17b -ol, with reoxidation of the 3-ol obtained, (g) 4-etherification, esterification or ether or ester hydrolysis, (h) 1- and/or 6-dehydrogenation or (i) enol esterification.  4-Halo-starting materials are obtained (a) by direct halogenation using a halogen, sulphuryl chloride or an N-halo amide or imide, (b) halogenation and dehydrohalogenation of a 3-keto-D 4,6-compound, (c) reaction of a 4,5-epoxide with a hydrogen halide, (d) conversion of a 3-keto-compound to its 3-enamino-D 3,5 derivative and reacting this with perchloryl fluoride, (e) reduction of a 17-keto-compound to a 17b -ol, with reoxidation of the 3-ol obtained, (f) 1- and/or 6-dehydrogenation or (g) enol esterification.  The compounds of the invention have androgenic, anabolic and antigonadotropic activity and may be used in pharmaceutical compositions in combination with a carrier, for example in forms suitable for oral or parenteral administration.
Patent GB-991061-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G01J1/04
Filed: 1963-08-01
Abstract: 991, 061. Focusing exposure meters in cameras. EASTMAN KODAK CO. Aug. 1, 1963 [Aug. 6,1962], No. 30585/63. Heading G2A. A camera has a photo-cell 14 mounted for illumination through an aperture 15 and a movable light transmitting and diffusing member 20 for changing the effective field angle of the photo-cell. Member 20 is mounted on a ring 22 and is slidable in a tube 10 by means of a screw threaded rod 24 rotated by gear means 28, 30 and controlled by the camera objective focusing means (not shown). The photo-cell 14 may control exposure setting means in known manner.
Patent GB-281278-A (GB)
Title: Wheel structure
IPC: B60B11/06
Filed: 1927-11-15
Abstract: 281,278. Goodyear Tire & Rubber Co., (Assignees of Armstrong, H. C.). Nov. 27, 1926, [Convention date]. Detachable-rim attachments to wheels. - Multiple rims for wheels are secured to the rim by independent means operated from the same side of the wheel. The wheel felloe is provided with a tapered bearing seat 13 on which the inner rim 31 is secured by means of cross bolts 18 screwing into holes 17 in a rib 16 on the wheel felloe and passing through alined holes or slots 28 in an upturned rib or lugs 21 of the wheel felloe. The second rim 31 is held in a groove 35- on a divided wedging ring 22 provided with tapered faces 23, 25 to contact with correspondingly tapered seats 20, 15 provided on the wheel felloe and clamped by means of bolts 27 passing through apertures in the felloe rib 16.
Patent GB-1499217-A (GB)
Title: Preparation of hydrazodicarbonamide
IPC: C07C239/00
Filed: 1975-07-23
Abstract: 1499217 Hydrazodicarbonamide UNIROYAL Inc 23 July 1975 [9 Sept 1974] 30807/75 Heading C2C Hydrazodicarbonamide, is obtained by reacting urea, water and a ketazine in the absence of acid at a temperature above 50‹ C., the molar ratio of urea to ketazine being at least 2 : 1, and the ketazine having the Formula I: in which R 1 , R 2 , R 3  and R 4  are C 1-8  alkyl groups or R 1  and R 2  and/or R 3  and R 4  together form a 5- or 6-membered aliphatic ring.
Patent GB-505619-A (GB)
Title: Improvements in or relating to mattresses
IPC: A47C27/05
Filed: 1937-11-10
Abstract: 505,619. Mattresses. CROWN BEDDING CO., Ltd., and WALLIS, L. S. Nov. 10, 1937, No. 30810. [Class 52 (iv)] A spring-interior mattress has a layer of fabric c over the spring assembly upon which lies a layer of padding d and a quilted cover, the inner layer g of which, together with the fabric layer c, is drawn down at its edges over the edge of 'the spring assembly and stitched . thereto, the edges of the outer layer e of the cover and of the boxing k being stitched together outside a roll-edge padding p.. A pocket for the padding p may be formed, by stitching the inner layer m of the boxing to the outer layer of the cover, a strip of tape being used for the same purpose if the boxing has no inner layer.
Patent GB-533983-A (GB)
Title: Improvements in or relating to spare-wheel carriers for motor vehicles
IPC: B62D43/02
Filed: 1939-11-27
Abstract: 533,983. Spare wheel holders. COMMER CARS, Ltd., COZENS, G., and LIMON, W. Nov. 27, 1939, No. 30885. [Class 136 (i)] The wheel is supported vertically in a frame a having hinged thereto a member d which can be swung down into the dotted line position to rest on:the ground and to serve as a ramp down which the wheel may. be lowered. The member d is clamped against the tyre by a stirrup f having a clamp h. When the clamp is released a spring i swings the stirrup clear as shown in dotted lines. The frame may be situated between the driver's cab and the front portion of a motor vehicle.
Patent GB-384764-A (GB)
Title: Improvements in autographic recording apparatus
IPC: B41L5/00
Filed: 1931-11-07
Abstract: 384,764. Autographic recorders. TENNANT, W. J., 111, Hatton Garden, London.-(United Autograph Register Co. ; 5000, S. California Avenue, Chicago, U.S.A.) Nov. 7, 1931, No. 30916. [Class 106 (i).] In an autographic recorder having a platen above an elongated supply compartment for the superposed zig-zag-folded strips, a closure for the compartment is pivotally attached to the base thereof. In the form shown in Figs. 1 and 3 a filling compartment A<4> provided with an admission slot 20 is below the supply compartment A3, being pivoted to it at 16 and held closed by clips C. The strips after passing around a roller 19 and over the platen A<2> are registered by pins 14 on to which they are guided by the curled end of the cover A<1> pivoted to the main structure at one longitudinal edge. To facilitate recharging, the rear portion of the compartment A3, constituting the closure, is capable of being swung down about pivots 18. The carbon strips traverse the platen from a roll contained in a lateral compartment and to protect their rear edges aprons are supported on rods 25, Fig. 5, forming part of a frame B pivoted at 27. In a second form, Fig. 11, the filing compartment D4 is wholly detachable, being held in place by snap fasteners at 29e. The filing slot 31 is furnished with a guard 34 pivoted at its lower end and accommodated in a slot in the ledge 32. The registering pins G and the slots in the record strips are of elongated rectangular cross section and the aprons F are held by bars supported in slots in upward extensions of the side walls 37. In a third construction, Fig. 14, the filing compartment L<3> is between the supply compartment L4 and the platen L<2> and the filing slot is at the front end. The aprons 62, Fig. 16, are supported on wires pivoted at 61 and sprung into notches 61a.
Patent GB-1174323-A (GB)
Title: Process for Graft Polymerization
IPC: C08F255/08
Filed: 1967-07-05
Abstract: 1,174,323. Graft polymers. ESSO RESEARCH & ENGINEERING CO. 5 July, 1967 [26 July, 1966], No. 30963/67. Heading C3G. A graft polymer is prepared by reacting at a temperature of between- 90‹ and + 70‹ C. a cationically polymerizable monomer with a halogenated polymeric macromolecule, the macromolecule having at least 0À01 mol per cent of allylic halogen, tertiary halogen or benzylic halogen atoms or combinations thereof, in the presence of an A1M z R co-catalyst where M is a C 1  to C 12 -alkyl radical and R is M, hydrogen or halogen, whereby the macromolecule acts as co-catalyst and also becomes the backbone of said graft polymer. The examples illustrate the grafting of (a) styrene, p-chlorostyrene, alpha-methyl styrene or chloroprene on to chlorobutyl rubber using AlEt 2 Cl or AlEt 3  as catalyst, (b) styrene on to chlorinated ethylene-propylene rubber, polyvinyl chloride or polychloroprene using AlEt 2 Cl as catalyst, (c) isobutylene on to polyvinyl chloride or polychloroprene using AlEt 2 Cl as catalyst and (d) isobutylene and isoprene on to polychloroprene using AlEt 2 Cl as catalyst. Other graft monomers specified include butadiene, piperylene and vinyl alkyl ethers. The grafting process is carried out in an inert organic diluent. The graft polymer of isobutylene on polychloroprene which is produced in Example 19 is cured.
Patent GB-501677-A (GB)
Title: Improvements in and relating to refuse bins
IPC: B65F1/16
Filed: 1937-11-11
Abstract: 501,677. Sanitary bins. BILAND, A. J. Nov. 11, .1937, No. 31033. [Class 26] An attachment, for converting the usual dust-bin into a bin for dustless discharge into a collecting vehicle, consists of a collar 3, riveted or otherwise secured to the bin carrying a hinged strap 9 to which a lid 2 is secured. The collar is provided with a loading bar 8 by which the bin is hung upon the vehicle, the strap 9 having means 12 to co-operate with the usual sliding stirrup &c. on the vehicle.
Patent GB-536980-A (GB)
Title: Improvements in or relating to copper-base alloys
IPC: C22C9/04
Filed: 1939-12-01
Abstract: 536,980. Alloys. STEVENS, A. H. (American Brass Co.). Dec. 1, 1939, No. 31277. [Class 82 (i)] Copper alloys contain 0.1-50 per cent. of zinc and 0.01-1 per cent. of boron, with or without any of the following: up to 35 per cent. of nickel, up to 10 per cent. of manganese, up to 10 per cent. of lead, up to 5 per cent. of cadmium, up to 10 per cent. of aluminium, up to 5 per cent. of iron, up to 5 per cent. of magnesium, up to 10 per cent. of titanium, up to 10 per cent. of vanadium, and up to 10 per cent. of zirconium. In making the alloy, the boron may be added as such or as a copper-boron alloy, or by the methods described in Specification 536,893.
Patent GB-554591-A (GB)
Title: A process for the preparation of alumina from clay or other aluminium-containing materials
IPC: C01F7/26
Filed: 1939-12-01
Abstract: 554,591. Aluminium compounds. ENGLISH CLAYS, LOVERING, POCHIN & CO., Ltd., DAVIES, R. J., DERING, H. O., and PARKER, T. W. Dec. 1, 1939, No. 31285. Drawings to Specification. [Class 1 (iii)] Alumina is obtained from clay &c. by steps comprising sintering clay with ammonium sulphate to produce ammonium alum, extracting with hot ammonium sulphate, separating undissolved solids, crystallizing ammonia alum from the solution, filtering the crystals and passing through them a solution of ammonium sulphate containing ammonia to produce aluminium hydrate and ammonium sulphate the ammonium sulphate solution being derived from the initial mixture of clay and ammonium sulphate, the final solution being concentrated to give ammonium sulphate which is recycled with a fresh charge of clay. The solution from the sintered charge is treated with a reducing agent to reduce any ferric iron to the ferrous state.
Patent GB-446749-A (GB)
Title: Improvements in and relating to illuminated dials for wireless receivers and like devices
IPC: H03J1/04
Filed: 1934-11-01
Abstract: 446,749. Adjusting wireless apparatus. HESKETH, B., c/o McMichael Radio, Ltd., Wexham Road, Slough, Buckinghamshire. Nov. 1, 1934, No. 31324. [Class 37] In order to obtain a more open tuning scale a spot of light is caused to move over a translucent scale with a zigzag movement obtained by reciprocating a light source on the end of the tuning shaft. The tuning shaft has pivoted at one end a lamp 11 which is rocked by a link 15 and crank rod 17 operated by a loose pinion 6 driven by an arm 5. Alternatively a cam and push rod may be employed to rock the lamp. The lamp 11 may have a lens 13 with a light aperture throwing an image upon the scale.
Patent GB-1004400-A (GB)
Title: Improvements relating to dynamo electric machines
IPC: H02K9/00
Filed: 1964-08-04
Abstract: 1,004,400. Dynamo - electric machines. LICENTIA PATENT VERWALTUNGS G.m.b.H. Aug. 4, 1964 [July 31, 1963], No. 31346/64. Heading H2A. The hollow conductors of the rotor of a turbogenerator are pre-heated by circulating heated cooling fluid through them.
Patent GB-409607-A (GB)
Title: Improvements in methods for the construction of roofs for buildings and the like
IPC: E04B1/342
Filed: 1933-11-10
Abstract: 409,607. Roof constructions. MOPIN, E. G. P., 90, Avenue Niel, Paris. Nov. 10, 1933, No. 31360. Convention date, Oct. 14. [Classes 20 (i) and 20 (ii).] Roofs of the form of pyramids or of cones, paraboloids, part spheres, upright or inverted, are constructed by forming separate strips in the shapes of helices starting from the centre, each strip serving as a working floor or scaffolding for each succeeding strip. The strips 2 may be preformed and wound into position, or may be of reinforced concrete cast in position, the reinforcement 3 of each strip overlapping the reinforcement of the next succeeding strip and the concrete being cast on a movable mould 4 stiffened by struts 5 and fastened to the previously cast helix by bolts 6. Fig. 4 shows the finished building with centre support 1, roof 2, closures 7 which may be mounted to pivot or slide.
Patent GB-658502-A (GB)
Title: Improvements in or relating to photographic objectives
IPC: G02B13/00
Filed: 1949-12-08
Abstract: 658,502. Projection objectives. KODAK, Ltd. Dec. 8, 1949, No. 31534. Convention date, Dec. 17, 1948. [Class 97 (i)] A Petzval type objective corrected for use at a magnification M between six and infinity, and comprising two positive members made up of a total of from four to seven lens elements and separated by a central air-space larger than 0.2 F and smaller than 1.3 F, where F is the focal length of the objective, the front member having a focal length between 1.4 F and 2.5 F, and comprising a biconvex element cemented to the front of a negative element whose refractive index is higher than that of the biconvex element between 0.10 and 0.25, and the second member having a focal length between 0.9 F and 1.5 F, and in which the centre of curvature of the front surface of the front member is behind the centre of the central air-space, the centres of curvature of the surfaces bounding the central air-space are outside the body of the objective, and the centre of curvature of the rear surface of the rear member is not between the centre of the central air-space and the principal focal plane, is characterized in that the second positive member is compound an comprises a positive element cemented to a negative element of lower refractive index, and in that it includes a negative field flattening component spaced behind said second member and in front of the focal plane of the objective by a distance greater than (0.08-0.2/M) F and less than (0.15-0.2/M) F. Numerical data are given for two examples of the objective shown, for two examples of such an objective in which the element III is omitted, and two examples of such an objective in which the element III is omitted and the rear member consists of two biconvex elements cemented to a central biconcave element. Specification 624,789, [Group XXIII], is referred to.
Patent GB-859872-A (GB)
Title: Improvements in pickup tube apparatus
IPC: H01J31/32
Filed: 1959-09-16
Abstract: 859,872. Cathode-ray tube operating circuits. FERNSEH G.m.b.H. Sept. 16, 1959 [Sept. 16, 1958], No. 31569/59. Class 40(7). [Also in Group XXXV] The production of spurious signals in the output of a supericonoscope tube 1 (Fig. 1) the target 4 of which is stabilized by means of a stream of photo-electrons from an auxiliary photo-cathode 2, due to variations in the emissions of the latter with variations in temperature, is prevented by varying the illumination of the photo-cathode 2 in a compensating manner. This is effected by deriving from a resistor 5 a voltage which varies directly with the emission of the photo-cathode 2 and employing it to vary, via a value 8, the potential applied to a number of discharge lamps (of which one, only is shown at 12) and so vary the illumination of the photocathode 2 in a manner which counteracts the emission variation. Where the loop gain provided by a single valve, such as 8 is insufficient, a two stage amplifier having the anode-cathode path of the second valve connected in series with the lamps 12 and the operating potential therefore may be employed (Fig. 2, not shown).
Patent GB-817225-A (GB)
Title: Improvements in and relating to cartons
Inventor: SAMPSON ALFRED
IPC: B65D5/32
Filed: 1956-10-17
Abstract: 817,225. Cartons. ABBEY DISPLAY CO. Ltd. Oct. 16, 1957 [Oct. 17, 1956], No. 31604/56. Class 18. A carton which can be used as a dummy display comprises bottom, side and end panels, the bottom and one side panel having parallel slits and being scored to enable the material between the slits to be folded up into a step. The carton is folded up from two blanks, one of which provides a bottom panel 3, rear panel 7 and lid 2 with tuck-in flap 13 ; parallel slits 15 in the panels 3 and 7 with score lines 16, 17 and 18 define the step. The other blank provides a cut-away front panel 6 and end panels 4 and 5, the two blanks being stapled together through tabs 21.
Patent GB-1441220-A (GB)
Title: Screw rotor machine
IPC: F04C2/107
Filed: 1974-07-17
Abstract: 1441220 Pressure balancing rotors in internallymeshing screw machines ATLAS COPCO AB 17 July 1974 [20 July 1973] 31706/74 Heading F1F Balancing of the axial forces on the outer rotor of an internally-meshing screw machine of the type shown in Specifications 1441217 and 1441218 and 1441219 is accomplished by creating a fluidpressure seal 36 around the tubular shaft portion 13 of end-piece 11, which seal 36 lies on a circle of an area less than the interior cross-sectional area of the outer rotor 8, 9 so that the high-pressure acting on the axially inwardly facing surface of end part 11 can provide a force which counteracts the force on the outer rotor due to high-pressure on the outwardly facing axial surfaces of parts 9 and 13 the resultant 42 being within acceptable operating limits and being opposite to the resultant 39 on the inner rotor.
Patent GB-790470-A (GB)
Title: Improvements in or relating to nitric acid esters of cellulose and process of preparing same
Inventor: BENNETT JAMES LEROY
IPC: C08B5/02
Filed: 1956-10-18
Abstract: Cellulose is nitrated with mixtures containing up to 94 per cent of nitric acid, 3.3. per cent or more of magnesium nitrate and 2.65 per cent or more of water, the ratio of magnesium nitrate to water being not less than 1.2 : 1 and not more than 2.2 : 1, and preferably in the range 1.3 : 1 to 2 : 1.  The esters prepared in such a manner are washed with fresh nitric acid of 60-75 per cent concentration as the second displacement wash and not as the first displacement wash, as in the process of the parent Specification.
Patent GB-416757-A (GB)
Title: An improved method of and apparatus for the manufacture of safety glass
IPC: B29C39/42
Filed: 1933-11-14
Abstract: 416,757. Compound glass. SOC. CENERALE D'OPTIQUE SOC. ANON. DES ANCIENS ETABLISSEMENTS HUET ET CIE ET JUMELLES FLAMMARION, 76, Boulevard de la Villette, Paris. Nov. 14, 1933, No. 31756. Convention date, Dec. 20, 1932. [Class 140.] In making compound glass a viscous, transparent material is caused to flow upwardly into the space between two glass sheets held vertically with the openings at the vertical edges closed. Glass sheets 3, 4 are held by frames 1, 2 over a slot-shaped aperture 8 in a conduit 6 leading from a closed reservoir 9, and the viscous material 7 is caused to fill the space between them by admitting compressed air at 10. Alternatively, or additionally, the top border of the space between the glass sheets may be sealed, and suction applied to cause the introduction of the liquid. The glass sheets may be uniform or of varying thickness, and may be held obliquely one to the other.
Patent GB-967467-A (GB)
Title: A new or improved liquid level detecting apparatus
Inventor: STEEN WILLIAM MAXWELL
IPC: G01F23/24
Filed: 1961-09-05
Abstract: 967, 467. Automatic liquid level control. A. P. V. CO. Ltd. Sept. 3, 1962 [Sept. 5, 1961], No. 31854/61. Heading G3R. A detecting probe for a liquid level apparatus is formed by one end of a flexible component depending from a support so that the probe can yield to horizontal movement of the holder 1. In an electrical arrangement the probe 1 is serially connected to a relay 9, 11 controlling the admission of liquid through a valve 12, 13. The probe 3 may be alternatively of pneumatic type.