baber/WOPTO huggingface dataset:
Patent GB-1303396-A (GB)
IPC: C09B26/02
Filed: 1971-06-23
Abstract: 1303396 Hydrazo dyes; azo dye bases BAYER AG 23 June 1971 [24 June 1970] 29460/71 Heading C4P  Hydrazone dyes of formula (in which R 1  and R 4  are each H, halogen, 1-5 C alkyl or alkoxy, cycloalkyl, NO 2 , carbalkoxy, CN, acyl or a group Z, at least one being Z; Z is aralkyl which is optionally nuclear substituted by halogen, CN, NO 2 , OH, 1-5 C alkyl or alkoxy, acylamino and/or carbalkoxy; R 2  is cycloalkyl, aralkyl, aryl or 1-5 C alkyl; R 3  is cycloalkyl, aralkyl or 2-5 C alkenyl, or is alkyl optionally substituted by 1-5 C alkoxy or 2-6 C carbalkoxy; A is an anion; the rings X and Y may each contain one further non-ionic substituent). The dyes are prepared by reacting a diazotized amine of Formula (II) with a compound of Formula (III) to form an azo base of Formula (IV) and reacting the product with a compound of formula: R 3 A. The anion A may be changed by treating the product with an alkaline substance to form the corresponding carbinol base and then adding an anion-releasing agent (especially an acid). Specified dyes are those in which R 1  is H, CH 3 O, CH 3 , NO 2 , Cl, CH 3 O.CO- or C 6 H 5 CH 2 -; R 2  is CH 3  or benzyl; R 3  is CH 3  or C 2 H 5 ; R 4  is phenethyl, benzyl, (p-hydroxyphenyl) (dimethyl) methyl or benzyl substituted by NO 2 , OH, CH 3 , C 2 H 5 , dimethyl, CH 3 O or CH 3 CONH-; the ring containing R 4  may be further substituted by methyl; A is a conventional methine dye anion or is lactate, acetate, itaconate, succinate, maleate or adipate.
Patent GB-449993-A (GB)
Title: Improvements in machines for grinding and polishing curved surfaces
IPC: B24B13/02
Filed: 1935-10-25
Abstract: 449,993. Grinding and polishing lenses &c. MOORE, J. A., 20, Red Lion Street, Clerkenwell, London. Oct. 25, 1935, No. 29545. [Class 60] In a machine for grinding and polishing lenses or other curved surfaces, the tool A is mounted on a driving spindle B, which may be adjustable vertically, to compensate for wear of the tool, by a pair of V-blocks, and the glass blank C is carried by a holder D secured in a socket E by a screw F. The socket is carried by a gimbal or Cardan joint G pivoted in a bearing H non-rotatably carried by an arm J pivoted at K to the machine frame so that it can be swung back to change the lens holder. In order to position the lens on the tool, the arm J rests on a stop L, which may be adjustable, and the screw F is tightened whilst the blank is on the tool ; the stop is then withdrawn. The position of the pivot K is adjustable to suit the curvature of the surface.
Patent GB-658949-A (GB)
Title: Improvements in or relating to supporting arrangements for radio aerials
Inventor: FLETCHER STUART
IPC: H01Q1/12
Filed: 1949-11-18
Abstract: 658,949. Radio aerials. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 18, 1949,No.29611. [Class 40 (vii)] A support bracket for rigidly supporting an aerial array, such as the Yagi array 1 built up on rod 2, in an offset position with respect to a mast 3 comprises a two arm supporting member 4 of strip or sheet shaped centrally to fit partially round the mast 3 and clamped thereto by clamp means 5, completing the encirclement of the mast. Each end of the support member is provided with further clamp members 7 clamping rod 2 thereto as by means of bolts 8. Holes 9 may be provided to reduce the weight and windage of the bracket which is preferably shaped as. shown, tapering from maximum central width to a minimum at each end. The supporting member may be made in one piece and of relatively flexible or deformable metal so that it may be bent in situ so as to fit round the mast. Instead of being bent to fit round the side of the mast remote from the aerial the supporting member may be fitted round the rear side with the clamp means 5 on the outside.
Patent GB-309207-A (GB)
Title: Improvements in and apparatus for the cultivation of microorganisms and for carryingout aerobic fermentation
IPC: C12M1/14
Filed: 1927-11-07
Abstract: 309,207. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Nov. 7, 1927. Dioxyacetone; citric acid.-In the production of dioxyacetone from glycerine by fermentation and in citric acid fermentation, the fermenting liquid is allowed to flow slowly down a series of slightly inclined flat surfaces or trays a, in a closed container A and provided with means for regulating the rate of flow. A current of pure oxygen or gas containing oxygen is caused to pass counter to the flow of liquid. The path traversed by the liquid may be lengthened by the provision of suitable guiding means. According to the Provisional Specification transverse ledges, partition, overflows or sluices may be provided and the liquid may also be guided in the form of cascades or spirally.
Patent GB-324038-A (GB)
Title: A simple method of making artificial marble
IPC: C04B28/02
Filed: 1928-10-15
Abstract: 324,038. Kin, S. Oct. 15, 1928. Compound or composite stabs.-A process for making imitation marble consists in placing a thin layer of a composition of white cement and water, with or without powdered glass. or white sand or both, in a mould having a glazed or enamelled surface, adding a backing of cement and sand, consolidating under pressure, staking in a humid atmosphere, exposing to dry heat at about 100‹ F. for about 24 hours and finally removing from the mould. Before exposing to dry heat, the article, still in the mould, may be kept in the .dark for about 14 days. Marbled designs may be worked into the primary layer with a brush, using Indian ink or the like.
Patent GB-285989-A (GB)
Title: Improvements in or relating to fittings for use in connection with electrical wiring systems
IPC: H02B1/04
Filed: 1926-11-25
Abstract: 285,989. Crabtree, J. A. Nov. 25. 1926. Cases. - In flush or semi-flush mounting of switches and other electrical accessories on walls, ceilings and floors the wall box B is provided with an adjustable carrier-plate A on the underside of which the fitting is mounted and the plate is secured to the box by a quick-release key and key-hole connection. The connecting means comprises peripherally-grooved, undercut or overhung key formations d on the end of a screwed member (such as the nut c) which is anchored to the box (by screwing upon the stem b rising from the bottom of the box) and a key-hole aperture in the carrier-plate with two intruding sectors a<3>, a<4> with which the undercuts &c. on the key co-operate when the key is rotated through a partial turn. Alining adjustment of the carrier plate is effected by continuous rotation (by means of a screw-driver) of the key-head and, when set, the plate is locked by turning the keys to the locked position. Instead of the nut c a flanged screw with the key formation above the flange may be used engaging with a screwed bushing at the bottom of the box. Where provision for adjustment 'is not required, the key element may be arranged for partial rotation only so as to effect the locking function.
Patent GB-373048-A (GB)
Title: Improvements in water tube boilers
IPC: F22B37/22
Filed: 1931-10-27
Abstract: 373,048. Water-tube steam boilers. STIRLING BOILER CO., Ltd., 32, Farring- don Street, London.-(Babcock & Wilcox Co. ; 85, Liberty Street, New York, U.S.A.) Oct. 27, 1931, No. 29816. [Class 123 (ii).] The tubes 1 of each bank of water-tube boilers having a number of tube banks connecting drums 4, 6 with baffles 3, 5, 7, providing multiple gas passes are reduced in cross section at their ends,. the baffles extending up to the reduced portion 2 of the tubes so that the turning zone of each gas pass comes within the area of reduced cross section of the tubes.
Patent GB-416617-A (GB)
Title: Improvements in the manufacture of piston and similar rings
IPC: C21D9/40
Filed: 1933-10-27
Abstract: 416,617. Heat-treating piston-rings &c. OUBRIDGE, W. A., Parklands, Park Road, Coventry. Oct. 27, 1933, No. 29821. [Class 72.] In the heat treatment of piston or similar rings, distortion of the rings during the heating or quenching is prevented by fitting the rings e between co-axial plates a, b, a bolt c secured to the plate a passing through a central aperture in the plate b and through a tube d secured thereto. Axial pressure is applied to the rings e by a nut f on the screw-threaded end of the spindle c and bearing against the end of the tube d, a spring g being mounted on the spindle c between the nut f and the tube d. When the rings are being heat-formed to a selected curve as set forth in Specification 135,249, [Class 122 (i)]. A gap-spacing strip i may be introduced through a radial slot h in the plate b and fitted between the split ends of the rings. Instead of screw-threading the end of the spindle c, the latter may be slotted to receive a taper cotter pin. In a modification the plate may be provided with a plurality of projecting bars secured to or abutting against a crosshead which slides in the spindle instead of the tube d.
Patent GB-381737-A (GB)
Title: Improvements in electric time switching devices
IPC: G04C23/30
Filed: 1931-10-29
Abstract: 381,737. Time switches. AKT.-GES. FœR SCHALTAPPARATE, 23, Gerbergasse, Berne, Switzerland. Oct. 29, 1931, No. 29988. Convention date, Nov. 5, 1930. [Class 38 (v).] A time switch comprises an insulating switch cylinder 18 mounted for rotation and carrying contact-wheels 20, 24. The wheel 24 has a smooth periphery and always contacts with a spring 22 while the wheels 20 are toothed and contact with the upper springs 22 only in definite positions. The cylinder is driven by pawls 21 carried by levers 15, 16 rocked at predetermined times by tappets 8a on a day disc 8. The driving pawls 21 engage with ratchet wheels 19 on the switch cylinder, which are arranged with their teeth staggered with respect to each other so that when one pawl has operated it is incapable of moving the cylinder round further until the other has operated, as the length of the teeth corresponds to two operations. Pins 14 on the transmitting levers are provided for manual operation. The arrangement is described having three switches mounted on a common base and operated by three consecutive day discs. In a modification an escapement and anchor is shown to prevent the cylinder overrunning.
Patent GB-503159-A (GB)
Title: Improvements in or relating to machines for perforating or preparing tapes for controlling type setting and other machines
IPC: B41B25/00
Filed: 1937-11-02
Abstract: 503,159. Type - making machines. BLUME, M. E: Nov. 2, 1937, No. 30000. [Class 100 (iii)] [Also in Group VIII] Strip - perforating machines.-Relates to machines of the kind described in Specification 425,268, [Group VIII], in which a selectorcarriage controlled from a keyboard travels over and acts upon a series of control-elements arranged in rows, so as to form a pattern, which is subsequently translated by devices on a second carriage, which operate the punching- rnechanism. According to the invention, a displaceable end-of-line stop, which is positioned by the selector-carriage, serves to determine the return of the translator-carriage to initial position as soon as the reading of the line has been completed. The rotatable control-elements 9 are set by hooks 8 on a selector-carriage 1 running on rails 2, the composed pattern being subsequently read by feeler-levers 11 on a translator-carriage 10 moving on rails 13. A stop 16, movable on a bar 12, is pushed along by the carriage 1, a lever 17 mounted on the stop being engaged by an arm 5 on the carriage. The translator - carriage 10, in its subsequent advance, strikes and rocks the lever 17, so that the toothed lower end thereof engages a rack 15 on one of the rails 13, which is slidable. In its further advance, the carriage 10 pushes forwards the stop 16, and with it the rail 13, until a lever 25 falls into a notch 25a in the rail whereupon the drive of the carriage 10 is reversed. In its return, the carriage 10 draws the stop with it by means of a hooked spring 19 until the stop is arrested by engagement of the lever 17 by the arm 5 on the advancing selectorcarriage 1.
Patent GB-918270-A (GB)
Title: Improvements in or relating to light sources
IPC: H05H1/28
Filed: 1959-09-03
Abstract: 918,270. Arc lamps. UNION CARBIDE CORPORATION. Sept. 3, 1959 [Sept. 8, 1958 (2)], No. 30030/59. Class 39 (1). In an arc lamp a high-intensity light source is formed by passing a stream of inert gas of molecular weight greater than 40 over the electrode 122 so that a constricted arc of high temperature and axial stability is formed in the space 130 adjacent the aperture of a constricting passage which restricts the diameter of the arc. A typical embodiment has a water-cooled nozzle 124 and anode 132, and the device is enclosed in a housing 126 which has a window 128 in such a position that the light from the discharge may readily escape from the chamber. The gas which is preferably either Xenon, or Krypton may be kept at a pressure in the range 15-50 atmospheres, although any pressure above atmospheric will suffice, and since the gas is not consumed, it may be connected to pumping means to effect continual recirculation. The discharge arc may be of the " transferred " or " non-transferred " type. In a modification (Fig. 5, not shown) an arc column is established within a water vortex channel which serves to constrict the arc and to cool the surrounding quartz guide tube through which the light from the arc is transmitted. Specifications 845,410 and 845,411 are referred to.
Patent GB-154072-A (GB)
Title: An improved appliance for trueing-up the seating of cocks and valves
IPC: B24B15/00
Filed: 1919-12-02
Abstract: 154,072. Laird, R. Dec. 2, 1919. Disk apparatus.-A device for trueing-up the seatings for the washers of valves and cocks, especially water taps of the Bibcock type, comprises an operating-spindle 3 having thereon a head 4 constituting an abutment for an abrading-disk 2 which is detachably secured on the spindle by means of a nut 5, turned on its outside to fit the bore 6 of the smallest size of tap, Fig. 3, and provided with a saw cut 8 for tightening and removal. For larger sizes of taps, clamping-washers 7 of sizes to fit the bores of the taps operated upon are provided, held against the abrading-disk by a square or hexagonal nut 5. The device is adapted for loose engagement with an operating- tool such as a screwdriver or like bit engaging a saw-cut 4a in the head or abutment 4. In the construction shown in Fig. 4, a projection 4b is provided adapted to be engaged by a box spanner or by a screwdriver; this projection serves to facilitate removal of the device from the valve or tap. To prevent rotation of the abrading-disk on the spindle, this may have a squared portion 9 thereon engaging a correspondingly-shaped hole in the disk. The abrading-disks may be made from emery cloth.
Patent GB-1306985-A (GB)
Title: Process for polymerizing tetraoxane and the oxymethylene polymer  obtained thereby
IPC: C08G2/00
Filed: 1970-06-22
Abstract: 1306985 Tetraoxan polymerization UBE INDUSTRIES Ltd 22 June 1970 [20 June 1969 8 May 1970 15 May 1970] 30106/70 Heading C3P Tetraoxan is polymerized in the presence of sulphur, carbon disulphide or certain organic compounds thereof and of an acetal. The polymerization is suitably carried out with a solid phase monomer, and may be further promoted by the use of ultraviolet light or ionizing radiation, either prior to or during the polymerization. In examples, the sulphur compound is CS 2 , dimethyl sulphone, methyl, ethyl or benzyl thiocyanate, methyl thioglycollate, dimethylsulphite, cyclohexene-, ethylene- or propylenesulphide, trimethylene trisulphone, or ethylene thiourea, and the acetal is dioxolan, 1,3-dioxan, methylal, or ethylal, or mixtures thereof.
Patent GB-1150442-A (GB)
Title: Improvements in or relating to Filters
IPC: B01D29/11
Filed: 1965-07-15
Abstract: 1,150,442. Filter. COOPERS MECHANICAL JOINTS Ltd. and S. P. WITCHELL. 27 June, 1966 [15 July, 1965], No. 30194/65. Headings B1D and BIT [Also in Division B5] An annular, pleated paper filter element comprises a pair of end caps of moulded polyurethane, each incorporating a metal reinforcing ring 3 through which the polyurethane extends to form sealing gasket 8. Ring 3 is of channel section and may have holes (7) (Fig. 2, not shown) or may be made in two parts leaving an annular gap. In manufacture, a ring 3 is placed in an open mould with holes (7) aligned! with annular recess (11) (Fig. 3, not shown) polyurethane is poured into the recess and fills the ring 3 and the end of the pleated paper annulus is embedded in the polyurethane before it sets. The filter element may be used to filter oil, but Fig. 4 shows an I.C. engine air intake filter, in which top 16 is pulled downwards by four toggle linkages 22 to ensure seals between gaskets 8 and abutting surfaces.
Patent GB-1363050-A (GB)
Title: Panic lock mechanism
IPC: E05B65/10
Filed: 1973-06-26
Abstract: 1363050 Lock mechanisms S W BENGTSSON 26 June 1973 [10 July 1972] 30271/73 Heading E2A A panic lock mechanism for a door 14 comprises a control member 11 and at least one bolt operable thereby, and a catching device i.e. a pivoted arm 17, for holding the member 11 in its locking position, the member being operable by either an internal or external handle, the member 11 being operable by the internal handle 23 through the intermediary of a carrier 25 rotatable co-axially with the member and arranged to be turned through an angle independently of the member and to release the arm 17 from the member, continued movement of the carrier in the same direction turning the member sufficiently to withdrawn the bolt. As shown, the handle 21 is secured by a key-operable lock 20 and release of the lock causes a cam 22 to turn and move the arm 17 from blocking engagement with the member 11 which may then be rotated by the handle 23 to cause the bolts to be withdrawn. The carrier 25 is connected by a shaft 24 to the internal handle 23 and has pins 29, 29' which act in arcuate slots 30 in the member 11; rotation of the handle first causes the pin 29 to displace a pivoted finger 32 whereby the arm 17 is disengaged from the member 11, continued rotation of the handle and the member withdrawing the locking bolts which are connected to the member by links 12, 12'. A spring-loaded arm 34 co-operated with a trunnion 35 to prevent the member 11, when unblocked by the arm 17, being moved due to vibration.
Patent GB-1519497-A (GB)
Title: Centrifuge drums
IPC: B04B1/08
Filed: 1975-07-18
Abstract: 1519497 Centrifugal separator WESTFALIA SEPARATOR AG 18 July 1975 [7 Aug 1974] 30321/75 Heading B2P In a centrifuge drum for separating mercury from an aqueous liquid, at least one pocket 4, whose capacity is small in relation to that of the drum, is provided in the wall of the drum in the plane of the drum largest diameter with its open end facing the drum interior and a channel 5 leads from adjacent the radially outer end of the pocket to a radially further inwardly located outlet 6 for the mercury which is positioned in the drum wall below the pocket 4. The distance of the outlet 6 from the axis of rotation of the drum is so selected that, the separating zone between the mercury and the aqueous phase is located during a centrifuging operation, in the pocket 4.
Patent GB-686278-A (GB)
Title: Separating n-propyl alcohol from secondary butyl alcohol by extractive distillation
IPC: C07C29/74
Filed: 1950-12-13
Abstract: n-Propyl alcohol is separated from a mixture containing it and secondary butyl alcohol, e.g. a mixture obtained by fractionating the products of the partial oxidation of butane or a mixture of propane and butane, by subjecting the alcohol mixture butane, by subjecting the alcohol mixture to extractive distillation using as solvent, methyl naphthalene, dimethyl naphthalene, diphenyl, diphenyl ether, or the eutectic mixture of diphenyl and diphenyl ether, whereby n-propyl alcohol is obtained as the overhead product.  The proportion of solvent employed is between 5 to 50 volumes for each volume of alcohol mixture.  The still bottoms may be distilled to recover the secondary butyl alcohol and other alcohols therein, and the solvent remaining may then be recycled for use in the extractive distillation.  In an example, 100 parts by volume per hour of a mixture containing 42 per cent by weight of n-propyl alcohol, 8 per cent of secondary butyl alcohol, 26 per cent of isobutyl alcohol, and 12 per cent of n-butyl alcohol together with high boiling impurities, are introduced at the 15th tray from the bottom of a 45 tray column provided with a reboiler, condenser and reflux line; and 560 parts by volume per hour of the eutectic mixture of diphenyl ether and diphenyl containing 26.5 per cent by weight of diphenyl, are introduced at the top of the column.  A reflux ratio of 5:1 is maintained.  The overhead product comprises pure n-propyl alcohol.
Patent GB-465147-A (GB)
Title: Improvements in or relating to television or like systems
IPC: H03K4/16
Filed: 1935-11-05
Abstract: 465,147. Valve generating circuits. BAIRD TELEVISION, Ltd., and JOHNSTONE, D. M. Nov. 5, 1935, No. 30560. [Class 40 (v)] Relates to television systems, more particularly in which a cathode-ray tube is employed at the receiver. According to the invention, an object of which is to adapt a scanning generator either for sequential or intercalated scanning, means are provided whereby the generator may be rendered either self-operative or wholly dependent upon the receipt of synchronizing impulses for its continued operation. Synchronizing impulses, amplified by a valve V<1>, are fed through a condenser C<2> and inductance L<1> to the grid of a valve V2; which, when a switch S is in the position shown, acts as an oscillation generator of the type described in Specification 456,666. Potentials are thereby applied to the deflecting plates 'of a cathode-ray tube or the like, via the condenser C<3>. With this arrangement, the system is self-operative, i.e. the valve V<2> oscillates when a certain potential on its anode is reached, and the condenser C<1> is rapidly discharged, this action occurring whether synchronizing impulses are received from the transmitter or not. In this condition, the system is suited for use in receivers employing sequential scanning. To convert the system for use in intercalated scanning, the switch S is moved, (either manually or automatically under the control of frequency-selective relays) to the alternative position in which the inductance L<1> is short-circuited. Discharge of the condenser Cl then occurs only when positive potentials are applied, on the receipt of synchronizing impulses, to the grid of the valve V<2>.