baber/WOPTO huggingface dataset:
Patent GB-1477072-A (GB)
Title: Dual mode deflection synchronizing system
IPC: H04N5/08
Filed: 1975-01-13
Abstract: 1477072 Television RCA CORPORATION 13 Jan 1975 [30 Jan 1974] 1357/75 Heading H4F Synchronous vertical deflection of a kinescope 22, Fig. 1, is maintained by a dual mode system 100, which receives gated sync pulses at terminal A, from an incoming video signal. When a receiver embodying the system, is turned on, a vertical sync. verification detector 60 conditions a mode switch 80 to place the system in a "search mode", and a vertical sync. detector 70 begins to search for a signal of sufficient amplitude and duration to be considered valid vertical sync. Once such a signal is found detector 70 reconditions switch 80 to initiate an internal sync. and prediction interval generator 50 into synchronous production of an internal sync. signal which is passed to a vertical deflection generator 30 for control of the kinescope and a prediction interval pulse. As long as detector 60 continues to verify the presence of actual sync. occurring during the prediction interval pulse the system remains in this the "in sync." mode. If this state discontinues for example by a change of channel or noise, detector 60 will sense the absence of actual sync. in the predicted period and condition switch 80 to return the system to the search mode while generator 50 continues to supply internal sync. to the kinescope so that if the disturbance was created by noise it will not manifest itself in the display due to the continued supply of synchronous internal sync. from generator 50, the system returning to the in sync. mode upon the occurrence of the next noise free actual sync. pulse whereas if it were due to a channel change causing genuine asynchronous operation to be initiated the system will return to synchronous operation upon such occurrence.
Patent GB-832586-A (GB)
Title: Shoe fastener
IPC: A43C11/22
Filed: 1958-01-15
Abstract: 832,586. Shoe fasteners. PRENDERGAST, L. June 27, 1958 [Jan. 15, 1958], No. 1372/58. Class 17(2) A shoe fastener comprises a detachable cover shield, formed of resilient material and transversely ridged through its entire length to impart a permanent springing action, with inwardly turned flanges C at the sides which engage in an upward sliding motion beneath out-turned flanges D formed on strips secured to the closing flaps P of the shoe. The shield and strips are similarly tapered, as shown in Fig. 3. The strips are bent around the edges of flaps P, as at H in Fig. 5, and the end portions of flanges D are rounded as at M to facilitate engagement and disengagement of the shield. Flanges C, are formed with projections E which clip-in over the ends of flanges D to secure the shield. The shield is engaged by rearward sliding movement, and disengaged by first pressing towards the shoe to disengage projections E and then sliding downwardly. Alternative cross-sections for the shield are illustrated.
Patent GB-1071863-A (GB)
Title: Lead-impregnated,iron-base,sintered alloy materials for current-collecting slider shoes
IPC: C22C33/02
Filed: 1966-01-12
Abstract: A lead impregnated, iron base alloy contains a sintered skeleton containing at least one of: Cu, Mo, Ni, Cr each in amount from 0.5-5%, C up to 0.2%, the balance being Fe, said sintered skeleton having been impregnated with 10-30% of Pb.  After sintering the skeleton e.g. at 1, 150 DEG C. in hydrogen, an inert gas, or in a vacuum, impregnation may be effected by causing the Pb to melt and penetrate the sintered alloy in a hydrogen-containing atmosphere.
Patent GB-126393-A (GB)
Title: Improvements relating to the Hubs or Bosses of Aeroplane Propellers.
Inventor: LANG ARTHUR ALEXANDER DASHWOOD
IPC: B64C11/36
Filed: 1917-01-29
Abstract: 126,393. Lang, A. A. D. Jan. 29, 1917. Screw and like propellers.-A screw propeller for use on aeroplanes and of the type in which the pitch of the blades can be adjusted while the propeller is rotating, has the blades secured to short spindles f mounted in a ring a attached to the boss and provided with slotted arms l engaging pins k on an adjustable sleeve i slidably mounted on the boss d. The sleeve i is adjusted by a yoke engaging a ring m having a ball-bearing connexion with the sleeve. The spindles are provided with ball thrust bearings g, and at their outer ends have cross sockets t to which metal blades o are hinged at s. The metal blades are embedded in the laminations of the propeller and secured in position by keys p, the whole blade being further strengthened by wire wrapping r.
Patent GB-492634-A (GB)
Title: Improvements in methods for the automatic weighing of materials of various kinds into batches of equal weight
IPC: G01G19/22
Filed: 1938-01-17
Abstract: 492,634. Weighing-apparatus. POPOV, V. D. Jan. 17, 1938, No. 1494. Convention date, Jan. 16, 1937. Addition to 445,876. [Class 143] The method claimed in the parent Specification of weighing out material into portions of predetermined weight by the addition of successively diminishing measured volumes is modified by making all the additions at the same weighing point and automatically varying the counterbalancing means of the balance for the successive additions. As shown in Fig. 2, the scale pan or container 11 is located beneath a supply hopper 1 from which the material is fed in diminishing quantities by chambers a<1> ... a<8> in a measuring disc 2 rotated from a driving shaft 6. Delivery of a measured quantity is prevented by a door 12 unless the balance beam 15 rises to an electric contact 19 and thereby energizes a door-opening electromagnet 13. Prior to the arrival of a chamber a<1> ... a<8> at its delivery position, a table 20 intermittently rotated by a Maltese cross 24 and reciprocated vertically by a cam 32, deposits one of a series of increasing weights 17 upon the beam to determine whether or not the contents of the chamber shall be added. At the end of the cycle of operations, the scale pan is emptied, or the filled container removed, by suitable apparatus or by manual means. In a modification, Fig. 8, a number of radially-arranged balances 15a &c. are supplied by a single measuring disc 34 having the same number of measuring chambers a<1> &c. each with a closing slide 38, a single rotary and reciprocating table 20 being provided to deposit the additional weights successively upon the balance beams. Specification 445,928 is referred to.
Patent GB-966923-A (GB)
Title: Dehydrogenation process
Inventor: ENSOR GORDON ROY
IPC: C07C5/333
Filed: 1962-01-16
Abstract: Cycloalkenes are prepared by the dehydrogenation of an alicyclic hydrocarbon by contacting the vaporous alicyclic hydrocarbon with a catalyst comprising at least one compound formed from oxygen and at least one metal selected from molybdenum, tungsten, aluminium, iron, cobalt, nickel and the metals of Group Ib, IIb, IVb, Vb and VIIa of the Mendeleef Periodic Table, e.g. the simple oxides and mixtures thereof, zinc manganite, cupric manganite, bismuth molybdate and tin molybdate. The catalyst may contain an oxide of phosphorus, chromium or an alkali metal and may be absorbed on an inert support, e.g. kiesulguhr or silica.  The alicyclic hydrocarbon vapour may contain a non-reactant gas, e.g. nitrogen or argon, or air. Temperatures of 50-500 DEG  C., contact times of 0.1-5 seconds and pressures of 0.2-5 atmospheres are specified. Examples describe the dehydrogenation of cyclohexane to cyclohexene.
Patent GB-1459442-A (GB)
Title: Toy
IPC: A63F9/00
Filed: 1973-01-11
Abstract: 1459442 Perforating device AIRFIX PRODUCTS Ltd 3 April 1974 [11 Jan 1973] 1596/73 Heading B4B [Also in Division G5] A toy for coding messages comprises a holder consisting of two parallel spaced apart plates which in use receive a paper sheet or the like between them, one plate comprising a coding plate having at least one transverse row of recording areas 14, there being a plurality of small spaced apart holes 15 through each area through which, in use, the sheet can be perforated dot fashion through selected holes of each area successively across the sheet, the selection being in accordance with a cypher. Preferably there is a single row of recording areas 14, the holder being open top and bottom, the paper being slid up step-by-step through it. An extra area 14a has a single hole for line indexing, this perforation being aligned between teeth 16a in a hole 16 one line spacing higher. A suitable punch 13, 13a may be stowed in the holder. The other plate of the holder Fig. 2 is intended for decoding and has the cypher arranged in a more convenient manner 11 and decoding areas 17 with a line alignment hole 17a and teeth 17b.
Patent GB-490350-A (GB)
Title: Improved process for obtaining salts of sulphanilamide with non-volatile acids
Filed: 1938-01-18
Abstract: For obtaining salts of sulphanilamide, useful for various therapeutic purposes, with non-volatile acids, i.e. acids which do not escape with the vapours of an aqueous solvent, the sulphanilamide is dissolved in an organic solvent free from, or containing only a little, water, and the calculated quantity of non-volatile inorganic or organic acids is added.  Reaction is completed if necessary by boiling under reflux and the salts obtained by filtration or by vaporization of the solvent used. Suitable solvents are acetone or alcohol.  Examples describe the preparation of (1) sulphanilamide monophosphate, (2) sulphanilamide o-hydroxyquinoline - m - sulphonate, (3) sulphanilamide salicylate, (4) sulphanilamide acetylsalicylate.
Patent GB-155129-A (GB)
Title: Improvements in or relating to temporary axles for automobiles and the like
IPC: B60B35/00
Filed: 1920-01-19
Abstract: 155,129. Bolton, J., and Thurley, F. Jan. 19, 1920. Axles.-Relates to temporary axles for motorvehicles and the like. The part 4 of a broken axle is secured in a sleeve 3 by eccentric split spring rings 5 in eccentric grooves in the sleeve, the rings being jammed between the sleeve and the axle by rotation of the latter. A spindle 1 for the wheel of a car is formed on the sleeve. The surfaces of the rings or grooves may be roughened &c. to promote gripping, and holes may be provided in the sleeve to permit a tool to be used to unlock the parts.
Patent GB-1485099-A (GB)
Title: Tool for enlarging the ends of pipes
IPC: B21D41/02
Filed: 1976-01-15
Abstract: 1485099 Tube expanders ROTHENBERGER GmbH & CO WERKZEUGE - MASCHINEN KG 15 Jan 1976 [13 Feb 1975] 01656/76 Heading B3J A tube expander comprises an adapter, Fig. 3, between a tool-head, Fig. 4, containing expansible segments 27a and a holder, Fig. 1, having a mandrel 14, the adapter having a tapered mandrel 35 for expanding the segments 27a and being driven by the mandrel 14 which engages a recess in mandrel 35. The adapter may be screwthreaded 38, 42 to engage the holder and tool-head or have push-and-turn joints. A return spring 39 is provided for mandrel 35 and a lighter spring (not shown) may keep the mandrel in the position illustrated. The mandrel 35 may be of greater or lesser diameter than mandrel 14 and their tapers may differ from each other. Instead of a conical end, mandrel 35 may have a pyramidal end, Fig. 8 (not shown), which may be pivoted to the shank of the mandrel.
Patent GB-449040-A (GB)
Title: Improvements in the attachment of spoke-covering discs to wheels
IPC: B60B7/10
Filed: 1935-01-18
Abstract: 449,040. Spoke - covering discs. CORNERCROFT, Ltd., Queen Victoria Road, and RYCROFT, N., 6, St. Patrick's Road, both in Coventry. Jan. 18, 1935, No. 1676. [Class 144 (i)] Relates to spokecovering discs for vehicle wheels of the kind in which the disc is adapted to be sprung into retained engagement with the rim of the wheel. According to the invention, a plurality of resilient segments e, which may have their free edges formed with tongues e2, are riveted or otherwise firmly secured to the disc c and engage frictionally with the rim a as the disc is pushed into position. A hub cap d is secured in position by a screw o and overlaps the inner edge of the disc c, in order to form a weathertight joint.
Patent GB-506295-A (GB)
Title: Improvements in or relating to fastening devices for casement windows and the like
IPC: E05C17/22
Filed: 1938-01-18
Abstract: 506,295. Stays for hinged articles. SUNDERLAND ENGINEERING EQUIPMENT CO., Ltd., COOKE. N., and MINNICAN, R. Jan. 18, 1938, No. 1678. [Class 65 (i)] A stay for casement windows &c. comprises a bar A with notches &c. A<3>, A<4> on at least one edge adapted to be gripped by a pair of parallel jaws H on a bracket C through which the bar can slide when released from the jaws. The bar has a universal joint connection E<1>, F with the window, so that, when the window is closed, the bar can be turned through 90‹, to bring the part F across the cam edges G, G<1> on the bracket to-lock the stay.
Patent GB-370522-A (GB)
Title: Improvements in or relating to loose leaf binders
IPC: B42F13/12
Filed: 1931-01-19
Abstract: 370,522. Loose-leaf binders. BROWNING, W. H., 93, Chancery Lane, London, and HARE & SON, Ltd., C. H., Crown Works, Tyseley, Birmingham. Jan. 19, 1931, No. 1712. [Class 146 (i).] In a loose-leaf binder comprising a backmember 1, side-members 3,5, and covers 11, 13 hingedly connected together, the side-member 3 is slidable relatively to the side-member 5 to enable locking-devices carried thereby to be engaged with or disengaged from the ends of the binding-posts 15. The member 3 is slidable along its hinge-pin 7 so that slotted plates 23, 25 carried thereon are moved into and out of engagement with notches 19 in the posts 15. A leaf-spring 21 fixed to the member 3 rests on the hinge barrel when the plates 23, 25 are disengaged from the notches 19, but when the member 3 is moved to locking position the spring 21 snaps between adjacent parts of the hinge barrel and prevents movement of the member 3 to unlocking position. In order to release the spring 21, a rod is inserted through a hole 27 in the member 3. In one modification, a spring- pressed pin on the top of the post adapted to engage a perforation in the member 3, takes the place of the spring 21. In another modification, the spring 21 is formed as one arm of a spring-pressed bell-crank lever pivoted on the back-member 1, release being effected by operating the lever by finger. A compressorbar 71 may be placed over the posts and clamped on the leaves by a screw 73 threaded into a block fixed to the member 5. A cover-plate 75 may be hinged to the bar 71 and adapted to be locked thereto by a padlock so as to prevent tampering with the screw 73.
Patent GB-451831-A (GB)
Title: Improvements in and relating to photographic collapsible cameras and shutters therefor
IPC: G03B9/08
Filed: 1936-01-20
Abstract: 451,831. Photographic collapsable cameras; photographic shutters. KODAK, Ltd., Kingsway, London.-(Assignees of Green, N. B. ; 333, State Street, Rochester, New York, U.S.A.) Jan. 20, 1936, No. 1759. Convention date, Jan. 30, 1935. [Class 98 (i)] A photographic collapsable camera has means whereby on opening the camera the shutter trigger is automatically moved into a position in which it is accessible for normal operation and on closing the camera the trigger is automatically moved into a position in which it is inaccessible for normal operation, the trigger movements being such as not to operate the shutter mechanism. As shown in Fig. 2, the shutter trigger is constructed of two parts 7, 8 both pivoted on the stud 9, the part 7 being biassed by the spring 10 into folded position, the edge 11 moving away from the lug 12 carried by the part 8, held by the spring 13, so that the shutter mechanism is not operated. On opening the camera, a lug on front end of one supporting strut engages a lug 29 on the part 7 and moves the part 7 to open position.. On depressing the part 7 the trigger moves as a whole owing to co-action of the edge 11, and the lug 12 to effect exposure. On closing the camera the part 7 is retracted by spring 10. As shown in Fig. 8, the shutter 52 is on a cylinder 51 screwing into the body 50. A pin 60 folds the trigger 53 when the cylinder 51 is screwed into the body 50 to close the camera, and a spring unfolds the trigger 53 when the camera is opened.
Patent GB-503267-A (GB)
Title: Improvements in or relating to belt conveyers
IPC: B65G23/14
Filed: 1938-01-19
Abstract: 503,267. Endless - - belt conveyers. CURRAN, J., and CURRAN & CO., Ltd., E. Jan. 19, 1938, No. 1794. [Class 78 (i)] The curved part of the conveyer belt 1 is engaged by an endless belt 2 which is driven by a drum or drums 3 of radius less than that of the said curved part. The belt 2 is supported by guide rollers 6 and its tension is adjusted by a jockey pulley 7. The belts may be in frictional or positive engagement.
Patent GB-548590-A (GB)
Title: Improvements in slabs or blocks for buildings and buildings constructed therefrom
IPC: E04B1/61
Filed: 1941-02-10
Abstract: 548,590. Building slabs. BRUNTON, B., and BOOTH, R. G. Feb. 10, 1941, No. 1821. [Class 87 (i)] Building slabs .1 preferably of the kind formed of wood shavings or wood wool bound together by cement &c. have a surround of greater thickness than the slab formed of strips 2, 3, the latter chamfered around the inner edge at 4 to enable the slabs to be secured together by screws &c. 5. The slab may be filled in subsequently level with the strips 3 by means of plaster board, asbestos cement sheet, or layers of plaster.
Patent GB-583182-A (GB)
Title: Improvements in and relating to pipe laying apparatus for land drainage and like purposes
IPC: E02F5/10
Filed: 1944-02-03
Abstract: 583,182. Laying pipes &c. in trenches. HOWARD, A. C., and ROTARY HOES, Ltd. Feb. 3, 1944, Nos. 1975/44 and 1775/45. [Class 6 (i)] [Also in Group XXVIII] Pipe-laying apparatus, which may be attached to a trench-cutter, comprises a sledge having a central vertical leading edge 7, vertical side-walls 1, a base 6 of truncated V formation and upper side plates 4 to enclose the pipe-conduit 2 and exclude soil from the trench. Guide rollers 11, 19 are fitted between the plates. The plate 4 supports an upright 3 of semi-circular cross-section. A cable 25 operated by a winch 29, 31 serves to draw the trench-cutter into position. Specification 571,914 is referred to.
Patent GB-561692-A (GB)
Title: Improvements in or relating to thermal power plants
IPC: F01D25/30
Filed: 1943-02-08
Abstract: 561,692. Gas turbines. AKT.-GES. FUR TECHNISCHE STUDIEN; Feb. 8, 1943, No. 2062. Convention date, Jan 21, 1942. Drawings to Specification.. [Classes 110 (i) and 110 (iii)] In a gas turbine plant having a closed or substantially closed circuit for the working medium, the discharge casing for the compressor and, or, turbine is of diffusor form bounded by surfaces of rotation coaxial with the rotor.
Patent GB-1006126-A (GB)
Title: High energy igniter
Inventor: BARNES LESLIE
IPC: H01T13/52
Filed: 1964-01-16
Abstract: 1,006,126. Spark igniters. ROLLS-ROYCE Ltd. Jan. 16, 1964, No. 2090/64. Heading F1B. A high energy igniter comprises an annular outer electrode 11, 26 and an inner electrode 12, 25 which are concentrically arranged and which are radially spaced apart and insulating means disposed in the space between the electrodes and insulating the electrodes from each other the insulating means comprising either concentric layers of insulating material each having a different permittivity from that of the adjacent ring or spiral insulating means. In Fig. 1 a plurality of ceramic rings 14 are employed each of which has a different permittivity from that of the adjacent ring. In Figs. 5 and 6 two similar spirally wound mica strips 21, 21<SP>1</SP> with carbon layers 23, 23<SP>1</SP> are employed. One strip is spaced from the inner electrode 25 by a gap 30 and the other strip is spaced from the outer electrode by a gap 31. The invention is particularly applicable to an igniter for a gas turbine engine.
Patent GB-504014-A (GB)
Title: Improvements in or relating to variable-inductance tuning devices
IPC: H01F21/00
Filed: 1937-08-09
Abstract: 504,014. Variable resistances ; collectors; inductances. MALLORY & CO., Inc., P. R. Aug. 9, 1937, No. 2152/39. Convention date, Aug. 8, 1936. Divided out of 502,172. [Classes 37 and 38 (i)] [Also in Group XXXV] A variable-inductance coil comprises a coil formed of a bare conductor and a contact member movable relatively to the coil conductor along its length, the contact member being arranged to make at least two independent contacts with the same turn of the coil conductor side by side with one another on a common contact line at right-angles to the length of the conductor. The contact member 252 is a blade of phosphor bronze or other metallic spring material and is tapered towards its free end to form a point 271 which is split and turned up into U-shape so as to form a bifurcated contact point with two independent nib-like contacting portions. Specifications 502,172 and 502,251 are referred to.
Patent GB-525551-A (GB)
Title: Improvements in or relating to bearing mounting
IPC: F04D29/04
Filed: 1939-01-21
Abstract: 525,551. Bearings. STEVENS, A. H. (Fafnir Bearing Co.). Jan. 21, 1939, No. 2168. [Class 12 (i)] An anti-friction bearing is mounted in a rubber housing 9 having thin feet 10 by which the housing is secured to the supporting structure 8. The inner race ring may be located on the shaft 7 by a collar 20 with an interposed rubber washer .21. The outer race ring 13 is electrically earthed by a spring 24.
Patent GB-470855-A (GB)
Title: Improvements in or relating to colour photography
IPC: G03C7/04
Filed: 1936-01-23
Abstract: 470,855. Colour photography. SPENCER, D. A. Jan. 23. 1936, No. 2224. [Class 98 (ii)] A process of developing a negative or positive photograph on multicolour screen material to obtain a developed image which, in the thickness of the emulsion layer, is denser nearer to the support than is obtained by normal development and which may increase in density as the support is approached, comprises developing the latent image, without reversal, by the use of a developer containing a retarding or inhibiting substance which when in use is gradually exhausted by forming a stable complex salt or an tmdevelopable silver compound with the silver halide, or by combining with the gelatine layer or by absorption thereby, the substance being initially present in proportion such that during the penetration of the developer through the emulsion layer the retarding or inhibiting effect is reduced to such an extent that the developer becomes substantially more reactive as a developer, as it penetrates towards the support. Retarders or inhibitors specified are alkali-metal thiosulphates and ammonium thiosulphate, and soluble iodides and sulphides. Potassium metabisulphite and sodium bisulphite, which are capable of combining with the gelatine, may be used with an amidol developer. Energetic developers such as Metol with a caustic alkali, amidol or hydroquinone, are preferably used. The proportion of thiosulphate in the developer may be between 0À5 and 6 per cent and normally is less than 3 to 4 per cent by weight on a developing solution of normal concentration. Examples of developing formulae are given. The Provisional Specification refers also to the use of cyanides as inhibitors and to the development of lenticular-screen materials.
Patent GB-125581-A (GB)
Title: Improvements in Ejector Apparatus for Gaseous Fluids.
IPC: F04F5/46
Filed: 1919-01-29
Abstract: 125,581. Akt.-Ges. Brown, Boveri, et Cie. April 17, 1918, [Convention date]. Aspirating - apparatus, ejector; regulating and controlling action. -An annular nozzle, of the kind described in Specification 125,367, in which a core of gradually increasing area from top to bottom extends bevond the end of the nozzle and then is terminated suddenly, is used to form an ejector for withdrawing air from and maintain a vacuum in a vessel. The illustrated form shows the core a within a steam or compressed air nozzle b. It is stated that, at the commencement of the exhausting operation, the hollow jet of compressed fluid will assume the form shown in full lines, and that as the pressure in the vessel decreases, the jet will expand laterally as shown in dotted lines, and finally will fill the delivery tube when a relatively high vacuum has been obtained.