baber/WOPTO huggingface dataset:
Patent GB-768130-A (GB)
Title: A process for coating surfaces
Inventor: RIVETT FRANCIS ANTONY
IPC: B05D3/02
Filed: 1954-01-20
Abstract: Surfaces are coated with a powdered polymer of 11-amino-undecanoic acid having a melting point of 150 DEG C. to 200 DEG C., by applying it to the surface and raising its temperature to the melting point before, during or after application so that a coherent coating is obtained.  The material may be applied by means of a pistol in which compressed air or gas ejects it in a stream which passes through or adjacent to a flame of sufficiently high temperature to melt the said polyamide or render it plastic; or it may be applied e.g. by sieving or blowing on to the surface to be coated, which may be heated before or after application.  The preferred polyamide is one having the formula NH2(CH2)10 - CO[NH(CH2)10 -CO]nNH(CH2)10COOH where n is approximately 75 to 80.  The polyamide may have a pigment or dyestuff added to it, and may be used in conjunction with a powdered filler, e.g. glass, bentonite or silica.  The invention may be applied to the coating of tanks, and of heating coils in oil tankers. Specifications 432,831 [Group II], 535,138, 644,218 [Group II], and 663,222 are referred to.
Patent GB-304295-A (GB)
Title: Improved process for de-greasing and opening wool and other fibrous materials
IPC: D01C3/00
Filed: 1929-01-18
Abstract: 304,295. Aktis Patent-Verwertungsges., (Assignees of Uhlmann, A.). Jan. 18, 1928, [Convention date]. Retting.-Animal and vegetable fibres, e.g. hemp, flax, cotton, jute, wool, or silk, are completely or partly degreased and opened up by exposure in presence of water to a magnetic field produced by a high frequency electric current. For example, the fibres are placed in water in a glass or ceramic vessel e containing a metal plate f and resting on or surrounded by a coil d in circuit with a transformer a, a spark gap c, and a parallel condenser b. Currents of 3000-5000 volts and up to 3,000,000 periods may be used. Fat or oil liberated from the material rises to the surface of the water, and may be removed. Sulphuric, hydrochloric or other acid, salts or bases may be added to the water. If sodium or potassium hydrate be added, soap is produced from the fat or oil. The Specification as open to inspection under Sect. 91 (3) (a) states that oxygen is liberated and the fibres are bleached, that alkali carbonate may be added to the water, that skins, feathers, reeds, cane, wood, bark, spun or woven textiles, knitted goods, felts, nets, laces, and straw may be treated, that the products include cellulose for papermaking from wood and fodder for animals, and that the process may be carried so far as to produce a colloidal or approximately colloidal separation. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specification 297,713, [Class 1 (i), Chemical processes &c.].
Patent GB-731391-A (GB)
Title: Process for the production of new hydroxy-diamines
IPC: C07D295/13
Filed: 1953-01-22
Abstract: The invention comprises hydroxydiamines of the general formula <FORM:0731391/IV (b)/1> wherein Am represents an alkylamino or di-alkylamino radical in which each alkyl radical contains not more than 4 carbon atoms, the pyrrolidino or piperidino radical, R1 represents hydrogen or a methyl, ethyl, methoxy or ethoxy radical, and R2 represents a methyl, ethyl, methoxy or ethoxy radical, or R1 and R2 together represent an ethylene radical, and the preparation thereof by heating an amine of the formula Am-H with a 2, 3-epoxypropylamine of the formula <FORM:0731391/IV (b)/2> wherein R1, R2 and Am have the above significance. Amines which may be used in the above process are methyl-, ethyl-, n-propyl-, n-butyl-, allyl-, dimethyl-, methylethyl-, diethyl-, di-n-propyl-, diallyl-, di-n-butyl-, and methyl-n-butyl-amine, pyrollidine and piperidine. The hydroxydiamines may be converted into acid addition salts with inorganic and organic acids. Suitable 2,3-epoxypropylamines are the N-(2,3-epoxypropyl) derivatives of 2-methyl-, 2,21-dimethyl-, 2-ethyl-, 2-ethyl-21-methyl-, 2-methoxy-, 2,21-dimethoxy-, 2-methyl-21-methoxy-, 2-ethoxy- and 2-methyl-21-ethoxy-dipenylamine and o,o1-iminodibenzyl.  In the examples the following compounds are prepared in the form of their hydrochloride salts: N-(3-pyrollidino-2-hydroxypropyl)-o,o1-ditolylamine, and the corresponding 3-diethylamino-, 3-dimethylamino- and 3-piperidino-compounds, N - (3 - methylamino - 2 - hydroxypropyl) - o - ethyldiphenylamine, N - (3-ethylamino - 2 - hydroxypropyl) - o - methoxy-diphenylamine, N - (3 - dimethylamino - 2-hydroxypropyl) - o,o1 - dimethoxydiphenylamine, N - (3 - pyrrolidino - 2 - hydroxypropyl)-o1 - ethoxydiphenylamine, N - (3 - dimethylamino - 2 - hydroxypropyl) - o,o1 - iminodibenzyl and the corresponding 3-diethylamino-, 3-pyrrolidino-, 3-piperidino-, 3-dipropylamino-, 3-ethylamino- and 3-butylamino-compounds.  2,3 - Epoxypropyldiamines of the general formula <FORM:0731391/IV (b)/3> wherein R1 and R2 have the above significance, are prepared by reacting an alkali metal compound, e.g. the sodium or lithium compound, of the required diarylamine or iminodibenzyl with epichlorhydrin.  In the examples: N-(2,3 - epoxypropyl) - o,o1 - ditolylamine and N - (2,3 - epoxypropyl) - o,o1 - iminodibenzyl are prepared.
Patent GB-412137-A (GB)
Title: Improvements in gearing for driving rolling mills
IPC: F16H3/08
Filed: 1934-01-18
Abstract: 412,137. Rolling. DEMAG AKT.-GES., Werthauserstrasse, Duisburg, Germany. Jan. 18, 1934, No. 1849. Convention date, Jan. 18, 1933. [Class 83 (iv).] The shaft 15 of a rolling mill is driven from a shaft 8 through a change gear box 1 and reduction gearing 12, 13, flywheels 14, 14<1> being located on the high speed shaft between the change gear box 1 and the reduction gear 12, 13 so that the flywheels are of the minimum weight. The change gear box 1 has a double sliding dog clutch 6 to select either the gears 2, 3 or 4 and 5 to transmit the drive 10 in a resilient clutch.
Patent GB-138332-A (GB)
Title: Improvements in the construction of walls
IPC: E04B2/28
Filed: 1920-01-22
Abstract: 138,332. Guimonneau, L. H. Jan. 25, 1919, [Convention date]. Walls and partitions, dismountable, are formed of blocks 1, 1<a> which are interlocked by wedges 3 engaging oblique faces G on dovetailed projections 2, 2<a> on the blocks. The bottom course is formed on one face of blocks of half height and on the other face of blocks of full height, so that the remaining courses which are all formed of blocks of full height break joint horizontally. The vertical joints are broken by the faces of the blocks.
Patent GB-853671-A (GB)
Title: Improvements in or relating to transistor amplifiers
Inventor: SIMPSON ARTHUR IAN FORBES
IPC: F16N37/00
Filed: 1957-01-21
Abstract: 853,671. Transistor amplifiers. MODERN TELEPHONES (GREAT BRITAIN) Ltd. Dec. 30, 1957 [Jan. 21, 1957], No. 2091/57. Class 40(6). In a multi-stage transistor amplifier designed particularly for handling speech signals in which the instantaneous signal level frequently considerably exceeds the mean level but does so for short periods only, the penultimate stage of the amplifier is designed to deliver a peak output which is in excess of the power-handling capabilities of the output stage for continuous signals but is smaller than the maximum instantaneous signal level which the output stage can handle within the limits of permissible distortion. Moreover a current-sensitive resistor (i.e. the lamp P1) is included in the power supply to the output stage which is a class-B push-pull amplifier, so that, when the output of the penultimate stage exceeds that which the output stage is capable of handling continuously on account of the power dissipated and the signal is maintained at that level for a longer period than is usual with peak-level signals, the resistance of the resistor is increased and the power dissipation in the output stage is reduced to a safe level. For short pulse signals the capacitor C5 keeps the supply voltage to the output stage substantially constant. A negative feedback signal is taken from the winding 13 of the output transformer and applied across the resistor R5. This has the effect of increasing the load impedances presented to the transistor VI and hence of increasing the output signal delivered thereby. Specification 853,672 is referred to.
Patent GB-378777-A (GB)
Title: Process and means for producing paper bags
IPC: B31B29/00
Filed: 1932-01-25
Abstract: 378,777. Making paper bags. ATELIERS DE CONSTRUCTIONS M•CANIQUES C. & A. HOLWEG, and FREYSZ, C., 42, Rue Jacques KablÚ, Strasbourg, France. Jan. 25, 1932, No. 2197. [Class 94 (ii).] A device for producing cross-shaped square bottoms in paper bags by turning inwardly a corner in a paper tube 5 projecting beyond a forming plate, turning the upper lip of the corner over a cross rail, pressing on the paper tube and turning in the front and rear edges of the bottom square thus formed, is characterized in that for turning in the tube corner an oscillating tongue 3 is employed whose axis of oscillation 2 is parallel-displaceable and placed accurately under the edge of the paper tube during the turning of the corner, the tongue sliding between the outwardly bent front portions of the prongs of a fork 4 holding the tube prior to turning in the corner. The upper lip of the corner is then turned upwardly over a rail 10 by a member 6 movable in two directions by a slide 8 and a stationary cam 9, the lower lip being held by a member 7. Pressing feet 11, 11<1> then descend and press the square-shaped bottom. The bottom is completed by a device consisting of two L-shaped wires 13, carried by a presser plate 12, which press along the transverse diagonal of the square, two members 14 serving to raise the opposite corners of the square. A vertically reciprocable shaft 15, carrying two adjustable spring-biased folding blades 18, descends, the blades 18 pressing the opposite bag bottom corners slightly under the members 14 which move upwardly and inwardly to complete the folding.
Patent GB-864006-A (GB)
Title: Improvements in and relating to filing posts for loose-leaf binding, more especiallyfor fabric samples or patterns
IPC: B42F13/12
Filed: 1959-01-21
Abstract: 864,006. Loose-leaf binders. WOLK, W. Jan. 21, 1959, No. 2241/59. Class 146(1). A filing post comprises an inner member provided with resilient detent means, slidable in an outer sleeve having means with which said detent means can engage, the detent means and means with which they engage being so formed as to allow the inner member to be rotated in relation to the sleeve, thereby disengaging the resilient detent means to permit withdrawal of the inner member from the sleeve. The inner member, comprising a cylindrical rod like stem d having a milled head f and a longitudinal groove g in which the ends of a bow spring h are fixed, is inserted in the sleeve b, provided with a plurality of spaced transverse slots c, with the spring h in line with the slots c. To withdraw the stem d from the sleeve, the stem is rotated about its axis so that the spring h is rocked out of engagement with a slot and bears against the smooth part of the inner wall of the sleeve. Two sleeves b are secured to a flat strap a of sheet steel or synthetic plastic, or alternatively formed integrally therewith. In the latter case, the stem, sleeve and the flat strap are formed from a synthetic plastic of polyam:de base, and the slots c in the sleeve are provided at their mid-points with downwardly directed semi-cylindrical recesses (Fig. 3, not shown). Further the stem is provided with a longitudinal slot m to form two resilient bridges n one of which has an integral abutment o formed thereon which engages the slots c. In another embodiment, the stem d and sleeve b are each provided with a milled head f. The above embodiments may be modified by providing the sleeve b with only one slot c and by providing the head f with a slot i or any other suitable marking to indicate clearly the angular position of the stem or sleeve.
Patent GB-470916-A (GB)
Title: Moulding and vulcanising and apparatus therefor, applicable particularly to pneumatic tyre manufacture
IPC: B29D30/06
Filed: 1936-01-24
Abstract: 470,916. Moulding and vulcanizing tyres. DUNLOP RUBBER CO., Ltd., and WILLSHAW, H. Jan. 24, 1936, No. 2276. [Classes 70 and 87 (ii)] In tyre-moulding and vulcanizing apparatus comprising a three-part mould 16, 17, 18 and a segmental core 4, which is expanded into the mould, the final expansion of the core is effected by means brought into operation only after closure of the mould. The stem 9 of the cam 10 which expands the core 4 through levers 13 is carried by an auxiliary hydraulic ram 2 in the main ram 1. Low hydraulic pressure applied to the ram 1 closes the mould and effects a partial expansion of the core 4. High hydraulic pressure is then applied and raises the ram 2 against springs 5 and effects final expansion. The ram 2 may have a separate source of supply brought into operation by a switch operated by the closure of the mould. The final expansion of the core may be effected by spring, weight, inflatable, mechanical or electrical means.
Patent GB-644583-A (GB)
Title: Electron beam tube
IPC: H01J31/06
Filed: 1947-01-24
Abstract: 644,583. Thermionic distributers. STANDARD TELEPHONES & CABLES, Ltd. Jan. 24, 1947, No. 2280. Convention date, Jan. 26, 1946. [Class 40 (iii)] [Also in Group XL (a)] A thermionic distributer tube has a plurality of rows of target elements supported from the envelope at longitudinally spaced intervals thereon, each row comprising a number of target elements arranged in a circle, and means for deflecting an electron beam in a circle and varying the angle of deflection of the beam to determine the row of targets on which the beam impinges. The beam is sufficiently narrow to impinge on only one target element at a time. The target elements may comprise a number of short wires 16, Fig. 1, sealed radially through the envelope and each row may be screened from the next by an annular metallic shield 15. The beam may be given a circular deflection electrostatically and may then be further deflected by a toroidal coil 10 to impinge on the desired row of targets. The coil 10 may be fed with a stepped saw-tooth wave so that the beam impinges on each row in succession. In a modification, Fig. 4 (not shown), the lengths of the target wires are progressively increased from row to row so that the beam can be shifted from one row to the next by reducing the diameter of the scanning circle. In a further modification, Fig. 5, the target wires are bent so that their ends 30 are substantially equidistant from the centre of deflection of the beam. Specification 644,571, [Group XXXV], is referred to.
Patent GB-1362473-A (GB)
Title: Apparatus for thermal testing of thermally and/or electrically insulating materials
IPC: G01N25/50
Filed: 1973-01-18
Abstract: 1362473 Testing materials BELLING & LEE Ltd 18 Jan 1973 [18 Jan 1972] 2292/72 Heading G1D Apparatus for testing materials comprises an electrically heatable mandrel 11 provided with an electrical thermometer and arranged to be movable relative to a support for carrying a sample of the material, the mandrel 11, in use, being urged by a predetermined force into engagement with the sample. As shown, a wheeled carriage 13 which is provided with a clamping device 23 for gripping the sample 12 is movable rectilinearly under the influence of a dashpot 31 and a weight 14 along rail members (e.g. 21a) so that the sample 12 is brought into engagement with the mandrel 11. A dial guage micrometer 28 which is positionable along one of the rails 21a is arranged so that its probe 29 just engages a bracket 30 on the carriage 13 when the mandrel and sample first make contact so that subsequent indications on the guage are indicative of the heating effect of the mandrel 11 on the sample 12. The temperature of the mandrel 11 which may be sensed by a thermocouple and indicated on a meter 36 may be manually controlled by a knob 37 connected to a variable transformer in electrical connection with electrical heating means for the mandrel. The weight 14 which urges the sample 12 into contact with the mandrel 11 may be connected to a yoke 16 which is linked by cords 17a, 17b passing over pulleys 19a, 19b to the carriage 13.
Patent GB-535875-A (GB)
Title: Machine for machining and serrating turbine blade roots
IPC: B23C3/18
Filed: 1940-02-07
Abstract: 535,875. Milling turbine blades. YARROW & CO., Ltd., and STRACHAN, G. Feb. 7, 1940, No. 2346. [Class 83 (iii)] In a method of and machine for machining and serrating the roots of turbine blade segments (or individual blades) the blade segment is automatically fed, for instance by rotation of a table, first through the machining means and then through the serrating means. Alternatively the machining and serrating means may be moved successively past the blade segment. In one form the machine comprises columns 3 supporting a cross slide 1 which extends diametrally over a table 2 driven by worm gearing 8. The slide carries tool heads 4, 5, driven from motors 4<SP>1</SP>, 5<SP>1</SP> respectively through variable speed gearing. The table has a number of sets of radial grooves or slots 9 in which work holders may be adjustably positoned by the aid of locating pins or the like. The milling head 6 carries a gang of triple cutters 11 which simultaneously form to an arcuate curvature the opposite sides and base of a segment root carried past the cutters by the table movement. The spindle head is vertically adjustable from a hand wheel 12. The serrating cutter head embodies two sets of rotary serrating cutters 13, 13<SP>1</SP>, and .14, 14<SP>1</SP> which may be arranged as described in Specification 535,876. The cutters 13, 13<SP>1</SP> are adapted for serrating the inwardly directed edges of rotor' segments while the cutters 14, 14<SP>1</SP> operate on the outwardly directed edges of casing segments, the head 7 being given the required radial setting in each case. In operation the heads 6, 7 and the blade holders are set to the required radius and the table 2 is rotated to carry the work successively pastthe heads 6, 7. The table speed may be increased by tappet-operated control of its driving motor to move the work quickly between the machining stations. The work may be removed at an unloading station. For stepped segments one or more additional machining heads may be adjustably arranged on a cross beam located at right angles to the slide 1. The machine may be used for machining blades of the integral type.
Patent GB-502839-A (GB)
Title: Improvements in or relating to the typographic means used for preparing and producing duly punctuated hebrew or the like matter
IPC: B41B1/02
Filed: 1938-01-25
Abstract: 502,839. Type-making machines ; typewriters; type. STERN, Y. Jan. 25, 1938, No. 2395. [Classes 100 (ii), 100 (iii), and 100 (iv)] In the composition or typing of Hebrew and other languages in which Hebrew characters are used, matrices and type are employed which have the vowel signs A, Figs. 1, 3 and 4, located on separate bodies from the consonants B, and the vowels are placed between and in alignment the consonants, instead of above or below them, as usual. The number of matrices or types required can in this way be greatly reduced. A fount of matrices for a type-barmaking machine may consist of thirty-two consonants, twenty-one letters with a point such as "Dagesh," in the middle of the letter, and eleven vowels, the fount being made up to the usual number of ninety characters by numerals &c. The vowel signs may all be positioned in line with the lower, with the middle, or with the upper part of the letter, but in the case of different vowels having the same form, such as a single dot, these are distinguished by location in different vertical positions. The free space on a vowel matrix or type may be utilized for grammatical accents and melodic symbols. An auxiliary keyboard, which may be temporarily fitted to the existing keyboard of a type-bar-making machine, consists of a frame O, Fig. 10, provided with crosswires K, Fig. 9, on which are hinged flaps L bearing Hebrew characters and overlying the ordinary keys N, which may be depressed thereby. The frame may be hinged to the front rod R of the keyboard, and supported by legs P. Alternatively, caps bearing Hebrew characters may be placed over the keys. In the case of a typewriter, the levers bearing vowels must be arranged to actuate the letterspacing mechanism.
Patent GB-492860-A (GB)
Title: An improved method of lining smelting furnaces
IPC: F27B3/14
Filed: 1938-01-26
Abstract: 492,860. Furnace linings. HESKETT, J. A. Jan. 26, 1938, No. 2461. Convention date, Jan. 27, 1937. [Class 51 (ii)] A reverberatory furnace for the smelting of phosphate rock, silicious limestone, or other like basic materials and having means for cooling its internal surfaces is formed with a lining of the material to be smelted by splashing the internal surfaces with the material by means of jets of compressed air, steam and other gas directed into a mass of the molten material contained within the furnace and then rapidly cooling the furnace. The walls may have metal studs for providing a key hold on the lining.
Patent GB-498508-A (GB)
Title: Improvements in devices for removing sea-planes and similar machines from the water
IPC: B63B35/52
Filed: 1937-04-05
Abstract: 498,508. Launching seaplanes. ETABLISSEMENTS VERBOOM ET DUROUCHARD. April 5, 1937, No. 2558/38. Void. Convention date, May 23, 1936. Divided out of 480,923 under which a Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 24, 1937. [Class 115] Apparatus for launching and landing seaplanes from ships comprises a slipway 16 carrying a cradle 13, this slipway is pivoted to a carriage 18 running on rails on the ship's deck. The loaded carriage 13 is retracted until the seaplane balances the weight of the slipway, and the jack 21 is then operated to pivot the slipway to a horizontal position. The carriage 18 is then moved inboard.