baber/WOPTO huggingface dataset:
Patent GB-111100-A (GB)
Title: Improvements in Magneto-electric Ignition Apparatus.
IPC: H02K21/38
Filed: 1917-10-05
Abstract: 111,100. Akt.-Ges. Brown, Boveri, et Cie. (Assignees of Aichele, A.). Oct. 31, 1916, [Convention date]. Inductor-alternators.-A magneto has a vertical magnet M with a short limb M1 and a long limb M2, the limbs having pole-pieces N, S which embrace a rotating inductor I. The generating coil T is located between the magnet limbs and is carried by an iron yoke H, the ends H1, H2 of which also embrace the inductor. The inductor comprises laminated iron segments F, G mounted on the shaft A.
Patent GB-520021-A (GB)
Title: Improvements in playing boards for darts and like games
IPC: F41J3/00
Filed: 1939-05-15
Abstract: 520,021. Dart boards. FRASER, H. May 15, 1939, No. 14432. [Class 132 (iii)] In a dartboard comprising a backing 1 to which are secured pieces 7 of wood, cork, or plastic material which form the playing surface, the pieces 7 are separated by metal strips 3 one edge of which enters a groove in the backing 1 while the other edge is provided with projecting portions, such as a bulbous section 4, which assist in holding pieces 7 in place. The strips may be flanged on one or both sides as an alternative to the use of a bulbous portion.
Patent GB-1428844-A (GB)
Title: Electrostatic transducers
IPC: H04R19/00
Filed: 1973-03-26
Abstract: 1428844 Electrets AMALGAMATED WIRELESS (AUSTRALASIA) Ltd 26 March 1973 [8 May 1972] 14482/73 Heading HIM [Also in Divisions H3-H5] A method of providing an electret with a permanent charge involves placing the electret 1 between electrodes 2, 3 from one of which it is separated by a conductive liquid 4 such as ethyl alcohol or tap water (impure water). An electric field is then placed across the electrodes and the liquid removed with the field still applied, thereby leaving the electret with a permanent charge. The liquid may be removed by sucking it through a hole or holes in the electrode 3. A double charge technique may be used, whereby after an initial charging process, the electret is heated until the polarization voltage falls to about half its initial value. It is then returned to room temperature and recharged. Transducers employing electrets produced by the above methods are disclosed (see Division H3).
Patent GB-807368-A (GB)
Title: Improvements relating to fasteners for suitcases, brief cases, handbags and the like
Inventor: GILBERT SIDNEY BERNARD
IPC: E05B65/52
Filed: 1957-05-07
Abstract: 807,368. Hasp fastenings. GILBERT Ltd., S. B. May 7, 1657, No. 14494/57. Class 44 A fastener includes a primary part adapted to be carried by one of two members 23 which are to be releasably secured together and a secondary part adapted to be carried by the other such member 19, the primary part comprising a retaining bar 21 carried by a backing plate 22 in spaced parallel relationship thereto and the secondary part comprising a hollow tongue adapted to pass between the retaining bar and backing plate of the primary part, a latch plate 16 constituting part of the front wall of the tongue and having a shoulder 24 for engagement with the retaining bar to prevent withdrawal of the tongue from between the latter and the backing plate such latch plate being displaceable towards the rear wall of the tongue from a locking position in which the shoulder 24 is positioned for engagement with the retaining bar, a locking member 12 within the tongue and rockable between locked and unlocked positions about an axis perpendicular to the rear wall of the tongue by means of a key engageable with the member through an aperture 16a in the latch plate, the locking member in its locked position holding the latch plate in its locking position, and a compression spring 15 between the latch piste and the rear wall of the tongue for resiliently urging the latch plate into its locking position. The secondary part comprises a rear plate 10 which constitutes the rear wall of the tongue and which has a forwardly extending post 11 which receives the key and on which the locking member 16 is pivotally mounted. The tongue is completed by a front plate 18 which is held to the rear plate by ears and this has an aperture 17 for receiving the latch plate 16. The shoulder at the upper edge of the latch plate 16 is joggled outwardly to engage behind the plate 18 and it also has a flange at its lower edge which engages behind the plate 18 to form a pivotal connection. The locking member has a tongue 12c for engagement by the ward of the key so that it may be rotated by the key and it has a peripheral projection 13 which can engage behind the shoulder 24 of the latch plate to hold the latch plate in its locking position. Movement of the locking member to its locking and unlocking positions is controlled by providing it with two notches 12a, 12b which can selectively engage a pressed up pip 25 in the plate 10; to prevent the locking member overrunning its locked position a further pressed up pip 26 is provided which is engaged by the projection 13.
Patent GB-1221131-A (GB)
Title: Improvements relating to mordanting of anionic compounds in hydropholic colloid media
Inventor: TIMMERMAN DANIEL MAURICE
IPC: G03C7/25
Filed: 1968-03-26
Abstract: 1,221,131. Polymer derivatives. GEVAERTAGFA N.V. 3 March, 1969 [26 March, 1968], No. 14522/68. Heading C3P. [Also in Division G2] Poly-(2-vinyl-imidazoline) is prepared by stirring and heating to 80‹ C. polyacrylonitrile and ethylenediamine with thioacetamide as a catalyst in a reflux condenser. Poly (2 - vinyl - 3,4,5,6 - tetrahydropyridinium chloride) is prepared by stirring and heating to 80‹ C. polyacrylonitrile and 1,3-propanediamine with thioacetamide as a catalyst in a reflux condenser. Finally, the resulting product in aqueous solution is treated with hydrochloric acid.
Patent GB-326706-A (GB)
Title: Improvements in chain conveyors
IPC: B65G17/38
Filed: 1929-05-09
Abstract: 326,706. Mojonnier Bros. Co. April 1, 1929, [Convention date]. Driving and like chains with separate joint vins.-In a conveyer chain of the kind wherein the links are connected by interleaved projections 21, 22, 23, the link connections are such as to allow a lateral play to enable the links to turn in a plane, at right angles to the normal articulation plane, thereby enabling horizontal runs of the conveyer to travel around bends. The lateral turning is permitted by making the gap between the projections 22, 23 at one end of each link wider than the projection 21 at the other end, and bevelling the adjacent faces of the projections and the bearing surfaces 33 of the pin-hole through the projection 21. The pin B may be fixed in the outer projections 22, 23, as shown in Fig. 1 or may fit loosely in all the projections, being retained by its rivetedover heads 30, as shown in Fig. 10, or it may be fitted tightly in the inner projection 21 only, as shown in Fig. 11. in which case the middle of the pin is knurled to give it a tighter fit. The links may be of cast steel and the pins of chrome steel, and in the passage of the chain around curved guiding walls the heads of the pins rub upon phosphor bronze or other soft metal surfaces. Long links of the shape shown in Fig. 12 may be used. Arched recesses 28<1> in the links engage the sprocket-wheel teeth. The upper surface 40 of the links is rounded to enable articles to be pushed easily on to the chains.
Patent GB-456905-A (GB)
Title: Improvements in sand-blast apparatus
IPC: B24C7/00
Filed: 1935-05-17
Abstract: 456,905. Sand - blast; injectors. LAUFFER, E., 39, Boulevard Piercot, Liege, Belgium. May 17, 1935, No. 14554. Convention date, May 19, 1934. [Class 60] [See also Group XXVIII] In a sand-blast apparatus of the kind in which sand under air pressure in a chamber 2 passes by a passage 14, to a mixing-chamber 15 to which also compressed air is delivered from a pipe 8, the chamber 15 is of biconical form and has a lower wall 15<1> directed tangentially to the diverging air jet, which draws in the sand by ejector action. In the construction shown, the air is delivered through a nozzle 19 terminating substantially at the axis of the passage 14, and the air jet impinges on the walls of the chamber at the section where the converging portion 20 leading to the delivery pipe 21 commences. A threeway cock 6 controls the supply of air to the ejector and to a pipe 5 which carries a valve 4 which is raised by the air pressure to close the discharge opening from a conical hopper 3 supplying sand to the chamber 2. In case of obstruction of the passage 14, the cock 6 is adjusted to supply air only to the chamber 15 and the cover 23 of a tube 22 extending through the wall of the chamber 2 to a position above the passage 14 is removed, the obstructing matter being thus blown out through the tube 22. When the cock 6 is closed the compressed air in the chamber 2 escapes by a pipe 11 directly to the pipe 8, so preventing dust being carried into the cock by backflow along the pipe 5.
Patent GB-701331-A (GB)
Title: Storage batteries and separators therefor
IPC: H01M2/16
Filed: 1951-06-20
Abstract: 701,331. Batteries. AMERICAN FELT CO. June 20, 1951, No. 14583/51. Drawings to Specification. Class 53 [Also in Groups V and VIII] A corrugated separator for a storage battery consists of a sheet made by mixing cotton or other non-binder fibres with fibres of a thermoplastic material, carding the mixture and subjecting it to pressure at 280‹-310‹F. between cloth or canvas sheets in a platen press. Before the pressing operation the carded sheet may be treated with a resin emulsion of vinyl copolymers or polystyrene. The sheet is then passed between grooved rollers which are operated in such a manner as to produce slip between their surfaces and the sheet whereby sufficient heat is produced by friction to soften the thermoplastic fibres. The sheet cools as it leaves the rollers and the corrugated form is retained. To produce the necessary friction the rollers may be driven at different peripheral speeds at the point of contact with the sheet. Loss of porosity of the separator when in use due to the deposition in its pores of the active material of the electrodes is compensated by the gradual disintegration of the cotton fibres by the electrolyte.
Patent GB-916330-A (GB)
Title: Improvements in or relating to maximum demand indicating mechanism for electric supply meters
Inventor: GRAY BERNARD HERBERT LESLIE
IPC: G01R11/60
Filed: 1958-05-07
Abstract: 916,330. Maximum demand meters. SANGAMO WESTON Ltd. May 6, 1959 [May 7, 1958], No. 14635/58. Class 106 (3). The integration period of a maximum demand meter is determined by the number of projections 39 or recesses on a cam disc 38 which is rotated step-by-step by a continuouslyoperated synchronous electric motor 10, and an eccentric pin 21 which periodically engages the teeth of an index wheel 22. The cam disc 38 may be replaceable or may have teeth which can be swung into and out of operational positions to vary the integration period. The spindle of the associated metering mechanism drives, through gearing, gear-wheel 30 mounted on shaft 31, which is mounted at one end in a bracket 32 forming part of a lever 33. Also attached to lever 33 is a follower pin 37 which is biased to follow the periphery of cam disc 38 by weight 36. When pin 37 reaches a projection 39, lever 33 swings about pin 34, and gearwheel 42 mounted on shaft 31 is unmeshed from gear-wheel 43 ; pusher arm 45 then ceases to drive pointer 46 and returns to the zero position under the influence of weighted sector gear member 50. The pointer 46 is maintained in the position it has attained by a damping device 48. The projections 39 are arranged so that pin 37 comes into contact with them at the same time that pin 21 is coacting with a tooth of index wheel 22. The stepwise movement of wheel 22 is rendered more sharp by a spring- loaded index arm 41 with pin 40 which cooperates with the wheel teeth. Specification 916,329 is referred to.
Patent GB-499862-A (GB)
Title: Improvements in electrical apparatus for discharging bombs from aircraft
IPC: B64D1/04
Filed: 1937-05-27
Abstract: 499,862. Bomb - dropping ; sights. HEBER, C., and MECHANISCHE WERKSTATTEN NEUBRANDENBURG GES. May 27, 1937, No. 14751. Addition to 395,568. Drawings to Specification. [Classes 9 (ii) and 92 (ii)] The electrically operated bomb-releasing mechanism claimed in the parent Specification is controlled by a sighting apparatus carrying a contact device, closure of which, when the target comes into view at the desired instant of release, initiates the operation of the release mechanism. The sighting apparatus, which is of known construction, may be connected with the release mechanism by means of a cable or the release mechanism may be controlled from the sighting apparatus by wireless transmission. In the latter event and in the case of a squadron of aircraft, a transmitter may be provided on the sighting apparatus of one aircraft and arranged to co-operate with receivers provided on the release mechanism of individual or of all the remaining aircraft of the squadron.
Patent GB-801944-A (GB)
Title: Improvements in combustion chambers of jet propulsion units for aircraft
Inventor: BERTIN JEAN HENRI
IPC: F23R3/00
Filed: 1956-05-11
Abstract: 801,944. Generating combustion products under pressure. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. May 11, 1956 [May 13, 1955], No. 14756/56. Class 51 (1). In combustion equipment for example reheat combustion equipment of a jet propulsion engine, flame stabilizing baffles are formed by injecting jets of fluid under pressure into and transversely of the main stream of gas flowing through the equipment. The jets of fluid under pressure are provided in at least two substantially arcuate zones of the combustion chamber, the zones being longitudinally and arcuately spaced from each other, the object of the invention being to reduce or eliminate the vibrations which result from the combustion. The jet pipe of a gas turbine jet engine is shown in Fig. 1 and gaseous flame stabilizing baffles are provided in the reheat combustion chamber by injecting jets of air under pressure through the nozzles 4 formed in the fairing cone 1. The nozzles are disposed in two diametrically opposite groups which are spaced apart longitudinally. The nozzles are in two planes P1, P2 which are spaced apart by a distance L, each arcuate group of nozzles in the plane P1 subtending an angle α at the centre and each arcuate group in the plane P2 subtending an angle #. Each arcuate group of nozzles comprises three rows. The exhaust gas stream flow is indicated at F but the reheat fuel injectors are not shown. Some or all of the reheat fuel may be supplied with the air under pressure forming the flame stabilizing baffles. In a second embodiment, the gaseous nozzles are provided in four planes, the nozzles in each plane being formed in a sector and the four sectors together forming a helix. In a third embodiment the nozzles are again formed in two transverse planes, but the number of nozzles varies around the periphery. Parts of the periphery of the downstream plane having the greatest number of nozzles are axially in line with parts of the periphery of the upstream plane having the least number of nozzles. In Fig. 5, air under pressure passes through the duct 8 to the chamber 9 and then flows adjacent the inner surface of the fairing cone 1, thereby providing a cooling effect before issuing through the nozzles 4 to form the gaseous flame stabilizing baffles. Specification 751,013 is referred to.
Patent GB-708213-A (GB)
Title: Improved suitcase
IPC: A45C3/00
Filed: 1952-06-13
Abstract: 708,213. Suitcases. LEWIS, C. F. June 13, 1952, No. 14906/52. Class 18 The rims of the body and lid of a suitcase are reinforced by wires 3, 6 the wires being secured against the edge of the paper board, straw board &c. walls by paper and/or a covering material secured to the inside and outside of the body and lid. Waterproofed paper may be used for the covering 4, and may also secure the wires. If the lid and body are fiush fitting, a band 17 is secured within the body and this also may be reinforced by wire (not shown) at the rim. The bottom and top are secured to the side and lid. walls 1 and 5 respectively by sewn on plastic bindings 9, 8.
Patent GB-400874-A (GB)
Title: Improvements in or relating to methods of producing rubber articles and goods of or containing rubber
IPC: C08C1/15
Filed: 1933-05-24
Abstract: In the manufacture of rubber articles direct from aqueous dispersions of rubber by coagulation, the anhydrides or halides of the lower aliphatic acids, i.e. having less than ten carbon atoms, are used as coagulants.  Such articles include articles wholly or partly of rubber as, e.g. produced on formers or permanent backings and rubber threads produced for example as in Specification 214,615, [Class 70, India-rubber &c.].  Anhydrides mentioned include acetic, propionic, butyric, isobutyric, formylacetic, chloracetic, acrylic, crotonic, and maleic anhydrides and halides mentioned include acetyl, propionyl, butyryl, acrylyl, crotonyl, chloracetyl, oxalyl, and malonyl chlorides and bromides.  The coagulant may be used alone or mixed with adhesive materials such as rubber cement, organic solutions of gelatine and glue, cellulose nitrate solutions in alcohol, and other organic solvents.
Patent GB-636346-A (GB)
Title: Improvements in plugs for receiving screws, nails or the like
IPC: A63F3/02
Filed: 1947-06-06
Abstract: 636,346. Wall plugs. HILLIER, B. G. June 6, 1947, No. 14947. [Class 89 (i)] [Also in Group XXII] Wall plugs are made from longitudinally corrugated sleeves of metal or other material, preferably aluminium. The flanks 5 of the corrugations are radial and the sleeve may have a longitudinal seam and be tapered at the end to facilitate insertion.
Patent GB-1383847-A (GB)
Title: Cross-linkable adducts of triglycidylisocyanurate
IPC: C08L63/06
Filed: 1972-03-30
Abstract: 1383847 Coating HENKEL & CIE GmbH 30 March 1972 [1 April 1971] 14952/72 Heading B2E [Also in Division C3] Al, Cu, Fe, or wood are coated with crosslinkage adducts made by reaction of crystallized trtglycidylisocyanurate (A) with one or more novolaks (B), where (A) has epoxide oxygen content # 14% by wt and where wt ratio (A); (B) is from 25:75 to 70:30. As accelerator may be added 0.5-5% by wt, based on the product, of isopropylamine, dodecylamine, tertiary amines, quaternary ammonium compounds, or dicyandiamide. Or the adduct may be cross-linked, e.g., using aliphatic or aromatic amines, aminoplasts, polyamides con, taining free amino groups, e.g., reaction products of dimeric fatty acids with polyamines which may contain imidazolidine rings or carboxylic anhydrides. The adduct may be combined with urea, melamine, phenol, or silicone resins containing active groups, or with vinyl or acrylic esters. The adduct contains #1% epoxide oxygen. It may be used as a powder or dissolved in organic solvents.
Patent GB-342231-A (GB)
Title: Improvements in or relating to wheels
IPC: B23K11/00
Filed: 1930-05-15
Abstract: 342,231. Wheels. BUDD WHEEL CO., 25th Street, Philadelphia, U.S.A.- (Assignees of Eksergian, C. L.; 12141, Charlevoix Avenue, Detroit, Michigan, U.S.A.) May 15, 1930, No. 14974. Convention date, May 16, 1929. [Class 144 (i).] The spoked body of an artillery or like wheel is assembled with an oversized rim, which is then simultaneously contracted and flash welded to the spoke ends. The body may have oversized tubular spokes. Caps may be first spot welded to the rims as shown in Fig. 3, and the spoke ends united to the caps in the contracting and flash welding operation. The Specification as open to inspection under Sect. 91 (3) (a) states that the spokes may be formed separate from the hub and may be of wire form, and the rim may be of open form. This subject-matter does not appear in the Specification as accepted.
Patent GB-1145978-A (GB)
Title: Method and apparatus for splicing strip material
IPC: G03D15/04
Filed: 1966-04-05
Abstract: 1,145,978. Splicing webs. EASTMAN KODAK GO. 5 April, 1966-[5 April, 1965], No. 15011/66. Heading B6B; [Also in Division G2] Apparatus for trimming the free end of a film 42, severing a predetermined length of tape 34, and attaching part of the tape to the filmend, comprises two sliding members 16, 18 spring-urged upwardly and each having a projection 22, and 26 with cutting edges 24 and 28 to engage stationary cutting blades 12, 12<SP>1</SP> on the edges of a slot formed in the base-plate over which the film and tape-are fed in opposite directions. Projections 22, 26 also form a guideway which directs tape 34 into an overlap.with film 42 which passes beneath the projection 26. Platen 38, which may be electrically heated and which is attached to slide 18, presses the tape into adhesive contact with the film when the projections 22, 26 are depressed to perform their cutting action. Slides 16, 18 are actuated by a solenoid (64), as in Fig. 1 (not shown), through link (60) and three-armed lever (50) pivoting at (52).
Patent GB-1185394-A (GB)
Title: Improvements in or relating to Resonant Circuit Arrangements, Especially for U.H.F.
IPC: H03J3/18
Filed: 1967-04-03
Abstract: 1,185,394. Tuners; neutralizing. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 3 April, 1967 [19 April, 1966], No. 15102/67. Heading H3Q. [Also in Division H1] An h.f. resonant circuit comprises an inner conductor 11 (Fig. 2) and an outer conductor 10 constituting resonant lines tuned by a voltage dependent capacitor diode 15. The amplification of a transistor amplifier 21 is improved by arranging that the lead 23, from the transistor collector to the free end 12 of the inner conductor, extends closely adjacent to the diode 15 whereby inductive coupling takes place between the lead 23 and the diode supply lead, and the transistor is effectively coupled to the live end of the resonent circuit within the capacitor diode 15. Preferably the transistor is arranged in a recess 24 in the outer conductor 10 whereby wall currents in the conductor 10 will neutralize the stage formed by the transistor and the resonant circuit. A capacitor 13 serves to separate the diode voltage from the inner conductor 11. A D.C. source is connected to terminal 20 and to earth, terminal 20 being connected via a resistor 17 to the diode 15 and the source polarity biasing the diode in its blocking direction.
Patent GB-395850-A (GB)
Title: Improvements relating to plansifter sieves
IPC: B07B1/38
Filed: 1932-05-28
Abstract: 395,850. Sifting-apparatus. SIMON, Ltd., H. and LEDGER, C., Bird Hall Lane, Cheadle Heath, Cheshire. May 28, 1932, No. 15232. [Class 117.] In plansifter sieves, the trays a are made in the form of a deep pressing flanged at the upper edge to fit in a recess c in the frame so as to afford ready access to the sieve f. The central discharge slot is flanged downwardly, and handles g are provided for manipulation.