baber/WOPTO huggingface dataset:
Patent GB-513623-A (GB)
Title: Improvements in hard alloy compositions
IPC: C22C29/00
Filed: 1937-11-26
Abstract: 513,623. Alloys. MALLORY METALLURGICAL PRODUCTS, Ltd. (Mallory & Co., Inc., P. R.). Nov. 26, 1937, No. 29167. [Class 82 (i)] [Also in Group V] One or more of the metals tungsten or molybdenum, or the carbides, nitrides, or borides of tungsten, molybdenum, titanium, zirconium, vanadium, hafnium, tantalum, and columbium, are bonded with an age-hardening alloy, and the composition is subjected to an age-hardening treatment. Suitable-age-hardening alloys are copper, or silver, or both, with a small percentage of nickel, or cobalt-silicide. Up to 10 per cent. of cadmium or zinc may be added to the alloy to improve arcextinguishing properties. A suitable alloy is 2.0-2.4 per cent. of nickel, 0.5-0.6 per cent. of silicon, 0.35-0.75 per cent. of cadmium, 0.1-0.25 per cent. of silver, and the remainder copper. The proportion of refractory material may be 50.95 per cent. The refractory may be moulded and sintered and heated to 1,200-1,300‹C. in presence of the alloy which sinks into the voids therein, or the refractory and alloy may be mixed as powders, moulded and heated. For age-hardening, the composition is heated to above 700‹C., quenched, e.g., in water, and reheated to a lower temperature, e.g., 4-8 hours in a salt bath at 450-500‹C. Quenching may follow the firstheating, the second heating being thus avoided, or it may be combined with other steps, such as brazing.
Patent GB-1332048-A (GB)
Title: Waterproof wrist watch cases
IPC: G04B39/00
Filed: 1971-06-22
Abstract: 1332048 Watch case ORIENT WATCH CO Ltd 22 June 1971 [ 13 Nov 1970] 29211/71 Heading G3T In a waterproof wrist watch case, a bezel Z, with a non circular inner profile, is fitted over a laminated watch glass 3, 3', to form a non circular glass profile. The watch glass has a non circular glass element 3', complementary to the bezel inner profile, laminated onto a circular element 3. To ensure the waterproofing, the bezel Z is force fitted onto the main body 1 of the case, an 'O' ring 4 forming a seal between the body and the circular glass element.
Patent GB-887766-A (GB)
Title: Improvements in and relating to enclosed electrical machine stator frames
IPC: H02K5/20
Filed: 1960-08-25
Abstract: 887,766. Cooling dynamoelectric machines. MEZ FRENSTAT, NARODNI PODNIK. Aug. 25, 1960 [Aug. 26, 1959], No. 29331/60. Class 35. An enclosed electrical machine stator comprises a plurality of spaced ribs 3 welded to the external surface of the stator frame 1, each rib being bent in the same direction through a right-angle so as to overlap the adjacent rib with edge 2. The ribs are joggled where overlain by the edges to provide a seating, and the joggling is such that an effectively continuous external surface is provided.
Patent GB-509558-A (GB)
Title: Improvements in and relating to electric power transmission systems
IPC: H02M5/42
Filed: 1938-10-10
Abstract: 509,558. Converting. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 10, 1938, No. 29335. Convention date, Oct. 9, 1937. Addition to 456,222. [Class 38 (ii)] A power transmission system comprising, as in the parent Specification, a high voltage constant current direct current transmission line and translating circuits connecting it, at each end, to separate constant voltage alternating current systems, is provided with a plurality of translating circuits at each end and switching means to control the current level in the constant current circuit so as to reduce losses under light load conditions. One end of a constant current direct current line 3 is connected to a constant voltage alternating current system 1 through a pair of translating circuits. Switches 9, 25<1> permit connection of the constant voltage alternating current system 1 to the constant voltage terminals of monocyclic networks 4, 24 respectively. In another position, switch 25<1> short-circuits the monocyclic network 24 and an isolating switch 28 is provided adjacent to, the constant current terminals of this network. The constant current terminals of networks 4, 24 are connected through constant current alternating current circuits 10, 27, which may be interconnected by switch 31, to the primaries of transformers 11, 29 respectively. The secondaries of these transformers are connected to electric valve rectifiers (or inverters) 14, 30, respectively, connected in series across the constant current direct current transmission line 3. Similar terminal apparatus, associated with the constant voltage alternating current system at the other end of the line, is shown in Fig. 1 (not shown in full). Under normal load conditions, switches 9, 25<1> are closed and switch 31 open so that power is supplied independently through the two translating circuits to the constant current direct current circuit. Under light load conditions losses may be reduced by moving switch 25<1> to its short-circuiting position and dosing switch 31, whereupon the currents in the transformers 11, 29 and the transmission line 3 are reduced to half their previous value. As an alternative to short-circuiting the network 24, switches 25<1> and 28 may be operated to isolate it completely. Fig. 2 ( not shown) shows a form of the translating circuit in which control of the current level in the constant current circuit may be effected, either by switching reactances in parallel either with the capacitative or inductive elements of a monocyclic network, or by series-parallel control of a plurality of primary windings of a polyphase transformer in the constant current alternating current circuit.
Patent GB-1075898-A (GB)
Title: Stencil screen frame
Inventor: MILLER HENRY LAWRENCE
IPC: B41L13/10
Filed: 1964-07-17
Abstract: 1,075,898. Stencilling apparatus. WEST PENN SCREEN SERVICE Inc. July 17, 1964, No. 29374/64. Heading B6C. A screen printing rectangular stencil frame 20, Fig. 1, is made of a resilient thermoplastic such that prior to the fixing of the stencil thereto either the wall 24 or both walls 22 and 24 are bowed inwardly in order to allow subsequent tautening of the attached stencil on release of the wall or walls. As shown particularly in Fig. 6, the frame walls have an upper beading 52 which is fused to the stencil 56 in order to attach the latter to the frame. This fusing may be effected electrically by forming the stencil of copper or aluminium and clamping extensions 90, Fig. 15, at each end thereof to electrical connector plates 92 and 94 the clamping bolt and nut 96, 112 being used as a connector screw for an electrical cable 110. In another embodiment each wall 22 and 24 is reinforced with a spring steel strip whilst in yet a further construction the frame of resilient thermoplastic is associated with a frame of similar shape but rigid and having bowed longitudinal walls. In this construction the stencil is loosely fused to the resilient frame and tensioning is subsequently effected by forcing the rigid frame telescopically therein.
Patent GB-510402-A (GB)
Title: Improvements in or relating to means for proofing or coating hollow articles such aspaper or like bottles
IPC: B05C7/04
Filed: 1938-10-11
Abstract: 510,402. Coating containers. WARE, H. M., and WARE & CO., Ltd., H.M. Oct. 11, 1938, No. 29410. [Class 95] An apparatus for proofing or coating hollow articles such as paper bottles, cups, or containers, in which the containers are carried into and through a body of proofing liquid by an endless carrier having a series of containersupporting devices or cages pivotally mounted thereon, is characterized in that the said devices or cages are so arranged that the containers enter the liquid with their mouths down, and move through the liquid whilst in an inverted position in such a manner that a quantity of air is trapped therein to prevent crumpling or buckling of the container walls during the coating process. The apparatus shown comprises a bath 2, of molten paraffin wax, and a driven endless carrier made up of a pair of chains 5, 6, connected by pivoted cross bars 8. The cross bars 8 carry the container supporting devices, each of which comprises members 30, 31, 33 and 34, forming a cage with openings 35 for the reception of the containers, and a pivoted guard 40, 41, having a cork float 49. Each cross bar 8 is provided with actuating-fingers 45 which engage guide bars 46, 50 and 52. As the fingers 45 pass a recess 54 in the guide bar 52, the cage is swung into the position E, and any liquid in the container escapes. As the fingers move over the projections 57, the containers are jolted to shake off any surplus liquid, this action being assisted by the pivoted vibrator 58. At the delivery end of the apparatus, the guard 40, 41 is displaced, and the containers drop out of the cage on to wires 82 on the shaft 70, from which they are delivered, bottom downwards, on to a transverse conveyer 86.
Patent GB-275057-A (GB)
Title: Improvements in or relating to buttons
IPC: A44B1/34
Filed: 1926-11-22
Abstract: 275,057. Sturton, E. Nov. 22, 1926. Drawings to Specification. Studs.-A two-part detachable button comprises a front button member in the back of which is embedded the socket part of a press-stud fastener and a back button member having the corresponding part of the press-stud embedded in the face of a shank portion projecting from its face.
Patent GB-234721-A (GB)
Title: Improvements relating to footlights
IPC: F21S2/00
Filed: 1924-12-08
Abstract: 234,721. Jouan, L. Dec. 8, 1924. Stage lamps. - A stage footlight comprising a row of electric lamps a having a reflector b for directing the light on to the stage is provided with one or a plurality of adjacent reflector flaps c, which are pivotally mounted and adapted to be moved simultaneously or independently into various positions to throw the light on to, into various portions of, or off the stage. The flaps c, each of which may be formed from a board or wooden frame covered with metallic sheeting, may be hinged to the stage or their lower edges may rest against a wooden strip or the like attached to the stage, and they may be operated by wires d attached to a common wire f running to an operating lever g located in the wings, springs being provided for returning the flaps to their original positions. If the stage has a curved front the flaps are arranged to overlap when horizontal so as to form an uninterrupted surface when vertical.
Patent GB-986549-A (GB)
Title: Improvements relating to antioxidants
Inventor: TILLEY COLIN GEORGE
IPC: C08K5/17
Filed: 1962-08-01
Abstract: A number of specific compounds which are tertiary amines wherein one of the N-attached radicals is o-hydroxybenzyl are described and claimed.  They are prepared by reacting a phenol with a secondary amine and the appropriate aldehyde.ALSO:Elastomers are protected against oxidation by incorporating therein prior to vulcanization a monomeric, free tertiary amine in which one of the N-attached radicals is o-hydroxybenzyl, the others being alkyl or aryl (optionally substituted) or cycloalkyl. Examples relate to natural rubber compositions.ALSO:Hydrocarbon lubricating oils are protected against oxidation by incorporating therein a monomeric, free tertiary amine in which one of the N-attached radicals is o-hydroxybenzyl, the others being alkyl or aryl (optionally substituted) or cycloalkyl.
Patent GB-281626-A (GB)
Title: Process of and apparatus for coating pipes with asphalt and other protective mediums
IPC: B05C3/18
Filed: 1927-11-04
Abstract: 281,626. Vereinigte Stahlwerke Akt.- Ges., (Assignees of Himstedt. E., and Drescher, E.). Nov. 30, 1926, [Convention date]. Metal pipes.-Pipes and other cylindrical bodies' are coated with asphalt or other protective or anti-rust medium by depositing them on one or more conveyers, mounted on or in a suitable bath, and rotating them about their own axes by the travel-motion of the conveyers. The bath a is filled with asphalt and heated by waste gas by means of burners p. A conveying device comprising a conveyer belt k of links, metal sections, wire cables, &c., and pulleys e, f, g, h, i are mounted on the bath, and the belt is driven by the pulley e. Surplus' asphalt is removed from the belt by a doffer m or caught by a casing o. Tension on the belt is obtained by the weight of the pipe l which is rotated in the bath by the movement of the belt. In a modification diagrammatically indicated in Fig. 3, the pulley i is mounted to oscillate so that by movement thereof the belt may be lowered or pulled taut for immersing and removing the pipe from the apparatus. The pipe may be lifted from the bath and allowed to drain in an inclined position by the use of two or more belts and adjustment of the oscillating pulleys.
Patent GB-1357641-A (GB)
Title: Mineral mining machines
IPC: E21C35/22
Filed: 1971-06-24
Abstract: 1357641 Mineral-mining machines; fire damp neutralising COAL INDUSTRY (PATENTS) Ltd 9 June 1972 [24 June 1971] 29582/71 Headings E1F and E1X Mounted within a housing for the drive motor of the cutter head of a mineral-mining machine'is a fan 14 which is driven from the motor and ducting 18, 22 to feed air to and from the fan. Preferably the fan is driven from the drive shaft 5 of the motor through a clutch 10 and the ducting 22 feeding air from the fan may form the upper part of the housing and directs the air through two outlets 23, 24 to the cutter head 2 to disperse any concentration of dust and/or inflammable gas around the head.
Patent GB-741940-A (GB)
Title: Projection screens
IPC: G03B21/60
Filed: 1952-11-24
Abstract: 741,940. Projection screens. GLOWMETER CORPORATION. Nov. 24, 1952 [Nov. 23, 1951], No. 29617/52. Class 97 (1). A screen has a non-absorbing surface composed substantially wholly of elements in the form of projections or concavities having wholly curved surfaces, the boundaries between adjacent elements, as formed by the lines of intersection of their surfaces where projections or concavities adjoin elements of the same kind or as formed by the lines of inflexion of their surfaces where concavities adjoin projections, forming two intersecting series and being all continuously curved, one series lying in a surface parallel to the screen as a whole, the other series lying in parallel planes intersecting the screen. The screen may be transmitting or reflecting, the elements being formed as lenses or having specular reflecting surfaces. Fig. 7 shows part of the surface of a screen composed wholly of juxtaposed grooves of cyclically varying width and depth, the tops of the ridges formed by their intersection lying in one plane. A series of transverse planes perpendicular to screen contains points where the longitudinal cross-sections of the grooves change from concave to convex. The screen shown in Fig. 13 is covered with generally ellipsoidal depressions and protuberances in alternation. The screen may be formed of metal, plated if necessary. It is directional and produces a sharply defined viewing zone the shape of which is determined by the shapes of the boundaries between the elements. Different images may be projected from different directions so as to be visible in different zones.
Patent GB-910103-A (GB)
Title: Improvements in or relating to means for mounting horizontal guide members for drawers etc. in furniture and the like
IPC: A47B88/04
Filed: 1961-08-16
Abstract: 910,103. Drawers &c. SOC. CIVILLE DE RECHERCHES & D'ETUDES INDUSTRIELLES. Aug. 16, 1961 [Aug. 22, 1960], No. 29633/61. Class 52 (1). In the mounting of supporting guides for drawers, sliding shelves &c. in cabinets, uprights 2 of Z-section have slots 3 at different levels and the guide rails 4 have struck-out lugs 5 which are a force fit in the slots, the rails being locked in position by means of flange portions 6 with notches 7 which engage the upright and a lip which resiliently engages the front edge of upright 2. The guides may have rollers supported on pins 8.
Patent GB-463390-A (GB)
Title: Improvements in and relating to elastic fluid turbines
IPC: F02C6/12
Filed: 1936-10-31
Abstract: 463,390. Elastic - fluid turbines. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 31, 1936, No. 29661. Convention date, Oct. 31, 1935. [Class 110 (iii)] In a turbine driven by exhaust gases for operating a supercharger, the rotor a, with the exception of the rim, is open to the air for cooling purposes. The air may enter the rotor chamber through an annular conduit e arranged between the casing of the supercharger b and the casing d enclosing the rotor rim. The rotor may have ports f for the passage of the air or may carry blades g for drawing the air through the conduit e.
Patent GB-985876-A (GB)
Title: Improved polymerization process and catalyst
IPC: C08F136/06
Filed: 1963-07-26
Abstract: Cis-1,4-polybutadiene is prepared by polymerizing butadiene using an initiator formed by mixing (1) at least one organometallic compound of the formula RnM or R2AlH where R is alkyl, cycloalkyl, alkenyl, cycloalkenyl or aryl or combinations thereof, M is magnesium or aluminium and n is an integer equal to the valence of M; (2) at least one titanium halide which is titanium tetrachloride or tetrabromide and (3) at least one iodo-hydrocarbon CaIbHcXd where a is an integer from 1 to 20, b is from 1 to 6, c is from 0 to 41 and d is from 0 to 6 and X is a halogen other than iodine.  At least one iodine atom in said iodohydrocarbon being found to a carbon atom each of whose linkages to another atom is by a single bond.  Lists of components (1) are given and components (2) mentioned are methyl, n-propyl, isobutyl, n-dodecyl, eicosyl, cyclopentyl, 3-methylcyclopentyl, cyclohexyl, allyl, 2-butenyl, 4-hexenyl, 4-8-dodecadienyl, 3-cyclopentenyl, benzyl and 3-cyclohexenyl iodides, iodoform, diphenyl iodonium iodide, phenyl iodoso chloride, trifluoroiodomethane, 1, 1-diiodoethane and carbon tetraiodide.  It is usually desirable and often necessary that components (1), (2) and (3) of the initiator are brought together and "aged" prior to use. The "aging" is normally carried out at 20 DEG  to 100 DEG  C. for 15 minutes to 24 hours.  A diluent may be used in the "aging."  The polymerization may be carried out in a diluent.
Patent GB-535746-A (GB)
Title: Control means for change-speed mechanism
IPC: F16H61/18
Filed: 1939-11-09
Abstract: 535,746. Controlling variable-speed gearing. STANDARD MOTOR CO., Ltd., GRINHAM, E. G., and TURNER, W. R. Nov. 9, 1939, No. 29696. [Class 80 (ii)] Relates to control means for change-speed gearing of the kind in which an operating-rod is both rotatable and axially movable by means of a hand-lever, and a disengageable stop is provided to limit the turning movement of the lever, and therefore the sliding movement of the rod, in one direction, so as to form a " reverse stop." The operating-rod 15, Fig. 4, slides in a bush 14, which can turn in a bracket 12, secured, for example, to the steering-column 11 of a motor vehicle. The bush carries a forked arm 18 having slots, in which rests the pivot-pin 21 of a hand-lever 17. A pin 22 at the end of the lever engages in a slot in the end of the rod 15, so that the rod can be slid by turning the lever about its pivot 21. The rod is turned, for the selection of various speeds, by rotation of the hand-lever together with the bush 14, and a further selection can be made by raising the lever into the position shown in Fig. 3. Depression of the lever into the position shown in Fig. 5, which serves for reversing, is normally prevented by the engagement of the lever pivot 21 with an arm 16 on the rod 14. The lever can be drawn out lengthwise against the pull of a spring 25 to disengage it from the arm 16, and the lever can then be moved into the reversing position.
Patent GB-1025845-A (GB)
Title: Multi-position switch
Inventor: SUMNER THOMAS WILLIAM
IPC: H01H19/56
Filed: 1962-08-02
Abstract: 1,025,845. Mechanical switches, without quick action. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 1, 1963 [Aug. 2, 1962], No. 29708/62. Heading H2B. A multi-position rotary switch comprises an annular body 1 of insulating material having four sets of fixed contacts, such as 6a, 6b and 7a, 7b, moulded therein flush with the inner surface thereof. A bridging contact 13, shaped as shown, is spring-loaded to slide radially in an arbor 10 rotatable by shaft 11. A flange 4 extends inwardly from body 1 and has recesses, such as 5a and 5c, co-operating with the central part of contact 13 to locate the four switch positions and between these positions the flange 4 depresses contact 13 into arbor 10, thereby lifting the contact 13 clear of the fixed contacts and intermediate insulation during switching movements.
Patent GB-1468104-A (GB)
Title: Process for the separation of butadiene
IPC: C07C7/08
Filed: 1975-07-16
Abstract: 1468104 Extractive distillation of 1,3-butadiene SOC ITALIANA RESINE SIR SpA 16 July 1975 [10 Sept 1974] 29744/75 Heading C5E 1,3-Butadiene is separated by feeding a vaporized hydrocarbon stream 7 into a first extractive distillation column 8 having at least 150 plates and operated at 3À5-5À5 atmospheres, a bottom temperature of 110-140‹ C. and a head temperature of 30-50‹ C., passing aqueous acetonitrile 11 and/or 12 into the column at a higher level than the hydrocarbon stream 7, removing a head stream 9 consisting essentially of butenes, recovering aqueous acetonitrile from the bottom of the column, and obtaining a gaseous stream 13 containing 1,3-butadiene from a level below that of the hydrocarbon stream 7; feeding the gaseous stream 13 into a second extractive distillation column 21 having at least 80 plates and operated at 3À5-5À5 atmospheres, a bottom temperature of 110- 140‹ C. and a head temperature of 30-50‹ C., passing aqueous acetonitrile into the column at a higher level than the stream 13, recovering an overhead stream 22 consisting essentially of 1,3- butadiene, removing a gaseous stream 23 consisting essentially of acetylenic hydrocarbons from a level below that of the stream 13, and recovering aqueous acetonitrile 18 from the bottom of the column; and subjecting the stream 22 to rectification in columns 24 and 28 to separate lower boiling components 25 and higher boiling components 31 from the 1,3- butadiene product 27. The C 4  fraction 1 can be obtained as a by-product of the pyrolyses of liquified petroleum gas or naphtha to produce ethylene and/or propylene and is washed with aqueous ammonia 3 in a column 2 at 20-40‹ C. and 8-9 atmospheres to remove carbonyl compounds. A liquid side stream 14 can be withdrawn from the column 8, heated to 90-100‹ C. by heat exchange with the stream 15 of recovered aqueous acetonitrile solvent and reintroduced into the column. The gaseous stream 23, comprising butadiene and vinyl acetylene, can be condensed at 29 by direct contact with condensate 33 from a cooler 32.
Patent GB-409286-A (GB)
Title: Improvements in or relating to control-devices for mechanically adjustable tuning apparatus of wireless receivers
IPC: H03J5/10
Filed: 1932-10-24
Abstract: 409,286. Adjusting wireless apparatus. FITZPATRICK, H., 49, Manchester Street, Marylebone, London. Oct. 24, 1932, No. 29755. [Class 37.] A device for mechanically positioning the condenser tuning element of radio receivers for each individual transmission comprises a drum 23 having stop members 28 engaged by an abutment 19 on a rack 15 operated by the condenser spindle 11, a single operating handle serving to select the desired transmission and move the tuning element to the selected position. The control from a single knob is effected by providing ratchet mechanism and belt gearing for rotating the selector drum in one direction of control and moving the tuning element and abutment member in the other direction of control. The rack 15 is provided with a pointer 17 cooperating with a scale 18. The selector device is adjustable longitudinally with regard to the tuning element for initial setting purposes, and in one position of the drum the abutment 19 rides clear of the stops 28 for adjusting the zero position of the tuning element. The abutment 19 and stops 28 may form contact members of an electric circuit, for example, the screen grid voltage connection.