baber/WOPTO huggingface dataset:
Patent GB-534761-A (GB)
Title: Improvements in windows for aircraft
IPC: B64C1/14
Filed: 1939-11-13
Abstract: 534,761. Aircraft windows. AERONAUTICAL RESEARCH & SALES CORPORATION, Ltd., and CONRAN, [nee MARTIN], P. L. Nov. 13, 1939 No. 29957. [Class 4] A window for an aircraft has a streamlined protuberance to enable the pilot to obtain a view in any direction. The protuberance B may be formed in one piece with the window which can slide in guides C, or it may be formed as a separate flanged piece secured over a hole cut in the window. The rear end of the protuberance may be closed by a return portion where it overlaps the side of the fuselage, or it may be left open. The material known under the Registered Trade Mark " Perspex " may be used.
Patent GB-1005237-A (GB)
Title: Novel monoazo dye developers and their use in photographic processes and compositions
IPC: G03C7/333
Filed: 1962-08-07
Abstract: The invention comprises monoazo dyes of formula <FORM:1005237/C4-C5/1> wherein R is the residue of a diazotizable amine, Ar is an aryl radical, M is an alkylene radical, N is 0 or 1, Y is an ortho- or paradihydroxyphenyl radical and Q is a -COOZ or -CON(R2)R3 radical wherein Z is an alkyl radical and each R2 and R3 is hydrogen or an aliphatic radical or R2 and R3 may be joined to form a divalent aliphatic radical.  The dyes are used in photographic processes and compositions (see Division G2).  The dyes are prepared by coupling a diazotized amine with a pyrazolone of formula <FORM:1005237/C4-C5/2> wherein Y1 is an o- or p-diacyloxyphenyl radical and saponifying the dye obtained to convert the acyloxy groups to hydroxy groups. The dyes containing a carboxamido group in 3-position are prepared by reacting the dyes containing a 3-alkoxycarbonyl group with ammonia or amines such as mono- and dimethyl- or -ethyl-amines, piperidine, hydrazines, hydroxylamines and guanidines and if necessary, saponifying the acyloxy groups in Y1. Examples describe the preparation of the dyes. Specifications 684,591, 684,592, 804,972, 804,976, 853,478, 938,864 and 938,865 are referred to.
Patent GB-520358-A (GB)
Title: Process for reclaiming rubber
IPC: C08J11/08
Filed: 1938-10-19
Abstract: 520,358. Reclaiming rubber. MERZ, V. Oct. 19, 1938, No. 30274. [Class 70] Rubber is reclaimed from tyre covers, rubber shoes &c. by treating with rubber solvents at or near the boiling-point of the solvent which preferably does not exceed 100‹ C. Only sufficient solvent to swell the rubber is used, and the treated mass is pressed, for example, in a screening cylinder having a conical pressing worm, the rubber having discharged through the sides and the yarn &c. through the mouthpiece. Alternatively, the swollen rubber and textile material may be washed with water on perforated screens through which the rubber particles fall. Trichlorethylene, which may be mixed with benzene, may be used as solvent.
Patent GB-534882-A (GB)
Title: Improvements in or relating to combined loud-speaker and transmitter devices
IPC: H04R1/40
Filed: 1939-11-17
Abstract: 534,882. Electric impedance networks. STANDARD TELEPHONES & CABLES, Ltd. Nov. 17, 1939, No. 30277. Convention date, Dec. 20, 1938. [Class 40 (iii)] [Also in Group XXXIX] In a unitary loud-speaker and transmitter for inter-conference use (see Group XXXIX), the ribbons of the microphones 31, Fig. 5, are connected through transformers 34 to the network, one to a phase-shifter comprising an inductor 45 having inductively coupled coils, the junction being connected to a condenser 46. The other transformer is connected to a resistance 47 to produce an alteration substantially equal to that in the phase-shifter.
Patent GB-409036-A (GB)
Title: Improvements in and relating to spark ignition circuits for internal combustion engines
IPC: H01F38/12
Filed: 1932-10-29
Abstract: 409,036. Ignition systems; magnetos; transformers. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London, MORTON, C. J., 86, Wainbody Avenue, Green Lane, and GRIFFITHS, L., 78, Biggin Hall Crescent, both in Coventry. Oct. 29, 1932, No. 30410. [Class 7 (iv).] A resistance 9 of the order of one thousand ohms is placed between the distributer brush and the high tension winding of the coil or magneto. It may be inductive or non- inductive, but preferably consists of a pellet of moulded material placed between dovetailed flanges 10 behind the rotary arm 3 of a distributer within a magneto, or secured by a spike in the end of the laminated core of an induction coil. A safety spark-gap is formed between one of the screws securing the arm 3 and a stud 11 in the framing. Reference has been directed by the Comptroller to Specification 346,034.
Patent GB-818660-A (GB)
Title: Improvements in and relating to apparatus for handling materials
IPC: B21D43/10
Filed: 1957-09-27
Abstract: 818,660. Stamping; blanks transferring. SAHLIN ENGINEERING CO. Inc. Sept. 27, 1957, No. 30438/57. Class 83 (4). A material handling apparatus for transferring metal stampings from one press to another comprises a loading stand B, a swinging unloader arm D adapted to grip an edge of a workpiece P in a press A and to suspend said sheet by said edge over said stand, a turnover device F pivotally mounted on the stand, means for swinging said device to engage one side of a sheet when so suspended from said unloader arm D and to urge said sheet into partially inverted position, and means on said stand for guiding said work sheet from said turn-over device into inverted position on the stand upon release thereof by said unloader arm. The unloader arm D is fully described in Specification 669,646. The loading stand B comprises a portable framework 15 having adjustable legs 16. The turn-over device F comprises a pair of transversely spaced outer side frame members 17 connected together by a horizontal bar 18 and attached to a rockshaft 19 which also carries two curved cradle arms 20 attached at their outer ends to the bar 18. The turn-over device F is swung up or down by an air cylinder 25 which operates a lever arm 22 attached to a cross-bar connecting the frame members 17 of the device. The loading stand is provided with feed mechanism G operated by an air cylinder 27 the piston-rod of which is connected to a crank arm 30 on a rock-shaft 31 which carries a pair of upright swinging arms 34. To the upper end of each arm 34 is pivotally connected a pusher-arm 35. Inclined guide bars 36, 37 are arranged on each side of the stand and provide a longitudinal guide slot 39 for the carriage of each pusher device. Each carriage comprises inner and outer plates 38 positioned on opposite sides of the guide bars (Fig. 5), and travelling along the lower guide bar 37 on rollers 40. A pusher pawl 42 pivoted on the carriage has a nose 44 for engaging the work sheet and feeding it from the loading stand into a press C. Guide bars 46 or 47 may be provided for supporting and guiding the front and rear edges of the panel as it slides into inverted position on the stand.
Patent GB-862701-A (GB)
Title: A process for the preparation of 9ª‡-hydroxy steroids
IPC: C12P33/00
Filed: 1959-09-07
Abstract: 9a -Hydroxy-3-keto-D 4-steroids are prepared by subjecting 3-keto-D 4-steroids which are unsubstituted in the 11-position and are free from 9(11)-unsaturation to the action of enzymes of the micro-organisms Nocardia corallina.  Suitable starting compounds for the above process are D 4-androstene-3, 17-dione, testosterone, progesterone, desoxycorticosterone and 17a , 21-dihydroxy-4-pregnene-3, 20-dione.  In the examples the following compounds are prepared: 9a -hydroxy-D 4-androstene-3, 17-dione, 9a -hydroxy-desoxycorticosterone, 9a -hydroxy-progesterone, 17a , 21-dihydroxy-4-pregnene-3, 20-dione, and 9a , 17a -dihydroxyprogesterone.
Patent GB-1173516-A (GB)
Title: Reactors for the Decomposition of Liquid Hydrocarbons by an Electric Discharge Process.
Inventor: PECHURO NATAN SAULOVICH
IPC: B01J19/08
Filed: 1967-07-03
Abstract: 1,173,516. Electric discharge apparatus. MOSKOVSKY INSTITUT TONKOI KHIMICHESKOI TEKHNOLOGII IMENI M.V. LOMONOSOVA. 3 July, 1967, No. 30537/67. Heading H5H. [Also in Division C5] In a reactor for the decomposition of liquid hydrocarbons by an electric discharge process solid decomposition products are removed from the electrodes 1 by rotating the electrodes past scrapers 9. The electrodes may have annular grooves 16 into which gas escape holes 15 lead. One electrode and its scraper may be axially movable to adjust the arc path. Instead of disc electrodes, as shown, frusto-conical electrodes may be used (Fig. 6, not shown). The invention may be applied to D.C. and polyphase reactors. Acetylene is produced in the reactor.
Patent GB-409366-A (GB)
Title: Improvements relating to reinforced concrete floors and similar load supporting surfaces
IPC: E04B5/32
Filed: 1932-10-31
Abstract: 409,366. Reinforced - concrete floors and roofs. CAXTON FLOORS, Ltd., and COLE, A. T., 16, Caxton Street, Tothill Street, London: Oct. 31, 1932, No. 30562. [Class 20 (iv).] A method of constructing reinforced-concrete floors, roofs, and the like, consists in first placing a layer C of concrete upon centering A, then arranging hollow blocks D of concrete or burnt clay, having no projections on the under. side, upon this layer at appropriate distances apart, and subsequently providing a concrete filling F which is reinforced by metal rods E between the blocks. A layer of canvas B or other material is placed upon the upper surface of the centering and is adapted to be removed with the latter. The layer C may be of finer concrete than that of the main body F.
Patent GB-738594-A (GB)
Title: Power control mechanisms
Inventor: NOWAK JAN
IPC: E02B7/36
Filed: 1952-12-03
Abstract: 738,594. Engine stop-gear. FARRER, Ltd., W. E. Nov. 19, 1953 [Dec. 3, 1952], No. 30627/52. Class 122 (4), [Also in Groups XXIV and XXXVII] A cone or plate friction coupling is provided with one or more offset pinions h, each carried by the input member c of the coupling or an associated part, and meshing teeth on its output a or on a member connected thereto, so as to rotate on its own axis when the coupling slips on overload, such rotation causing axial movement of a spring-centralized helically-threaded pin i which, through a bush n, operates a switch q or q<SP>1</SP>, depending on the direction of rotation, for interrupting the driving-power source, such as a valve-controlled pneumatic, hydraulic or other motor.
Patent GB-226951-A (GB)
Title: Improvements in and connected with bag and sack filling apparatus
IPC: B65B1/28
Filed: 1923-12-06
Abstract: 226,951. Avery, Ltd., W. & T., and Johnson, S. H. Dec. 6, 1923. Filling flour into bags and sacks.-In apparatus, for filling bags and sacks with flour &c., of the kind described in Specification 215,905, a sequence of air passages is provided, one in each section of the apparatus from the supply to the bag to avoid the trapping of air within the material. As shown, a weigh hopper 1 is disposed partly within the upper section 2<a> of the bottom hopper and partly within a housing 3 connecting a supply hopper (not shown), to the section 2<a>. A partition 5 is arranged with its upper end at a higher level than the lower end of the weigh hopper door 1<a> in its discharging position, and a vertical partition 6 with an inclined extension 6<a> divides the air outlet passage into two. The air from the flour &c. in the bag 7 escapes through the passage A, that in the lower section 2<b> of the hopper through the passage A<1>, and that from the weigh hopper through an annular passage C formed bv a truncated conical plate A. According to the Provisional Specification, a fan or like means may be used to induce or assist the air currents.
Patent GB-222717-A (GB)
Title: Advertising device
IPC: G09F11/26
Filed: 1924-02-13
Abstract: 222,717. Robb, J. K. Feb. 13, 1924. Reel and endless-web apparatus.-In advertising devices of the type in which the loops of an endless band travelling in one direction are alternately inside and outside of the loops of a band travelling in an opposite direction, the band passing over rollers driven by a number of endless chains, one chain 21 is tensioned by a sprocket-wheel 22a mounted on a quadrant-shaped member 22.
Patent GB-1488055-A (GB)
Title: Agricultural soil-working implement
IPC: A01B63/22
Filed: 1975-07-23
Abstract: 1488055 Lifting soil-working implements C STARK and R STARK 23 July 1975 30726/75 Heading A1B A tractor drawn implement, e.g. a harrow, is lifted by operating at least one servomotor 8, such that the central girder 5 remains parallel to the ground, from a working position, in which skids 27 and soil-working tools engage the ground, through intermediate positions to a transport position (Fig. 2) with rear wheel(s) 1 on the ground and linkwork e.g. 11, 13. 12, 15 between girder 5 and a towbar 9 supporting the forward end of the implement. The arrangement of lifting equipment can be varied, e.g. as shown in Fig. 4; or, with servomotor 8 between a bracket on girder 5. and control arm 3, either link rod 11 may be connected between link arm 23 and lever 12, 13; or a second servomotor may be connected between brackets on girder 5 and towbar 9 respectively. Part of the linkwork may be provided below girder 5 and wheel 1 may be mounted on a forwardly directed support arm 2.
Patent GB-1001927-A (GB)
Title: Improvements in transporting devices
IPC: B62B5/00
Filed: 1964-08-04
Abstract: 1,001,927. Collapsible trolleys. E. H. ULLMAN. Aug. 4, 1964 [July 17, 1963], No. 30733/64. Heading B7B. A collapsible trolley has arms 1 provided with recesses 4 and castor wheels 2 and pivoted at 6 to a common connecting member 7 having a carrying handle 8.
Patent GB-536975-A (GB)
Title: Improvements in sectional and transportable buildings
IPC: E04B1/26
Filed: 1939-11-25
Abstract: 536,975. Sectional buildings. MARKUS, V. Nov. 25, 1939, No. 30812. [Class 20 (i)] A sectional building comprises panels covered on one side with metal and on the other side with heat insulating material such as wood, and T-shaped bent sheet metal uprights with wood fillings, Z-shaped foot plates 3 are placed along the, ground at the required width of the building and on these foot-plates are erected spaced T-shaped metal uprights 2. with wood filling, held in position by projections on the foot-plates and by longitudinal beams 5 disposed along their upper ends. The panels are formed with wooden frames 4 having recessed edges to engage over the flanges of the uprights, resilient packing 8 being placed in these recesses. Some. of the panels are supplied with windows or doors. The roof panels 10 which are also covered with metal on one face and wood on the other, have trapezium-shaped end bars 13 which are clamped to the roof rafters 14 by cover plates 15 and bolts 16. At the ridge curved panels sections 10<SP>1</SP>. are supported by a U-shaped bar 18 and uprights 19 and the edges 17 of the metal facing overlap the edges of the adjacent panels 10. Specification 487,286 is referred to.
Patent GB-754523-A (GB)
Title: Improvements in steady state signalling systems using alternating currents
IPC: H04Q1/44
Filed: 1954-10-26
Abstract: 754,523. Automatic exchange systems. SKILLMAN & CO., PTY., Ltd., T. S. Oct. 26, 1954[Nov. 11, 1953], No. 30886/54. Class 40 (4). In a system in which supervisory signals are transmitted over an inter-exchange line as alternating currents outside, or cut out of, the speech band and in which intermodulation products due to distortion of speech frequencies might affect the signal receiver, arrangements are provided to reduce the speech level until the signal receiver is operated. The Figure illustrates the return half of an interexchange carrier circuit in which prior to the called party answer signal, any operator's speech necessary to the setting up of the call, and received over line L1, is attenuated by the pad P1, so that any distortion products, e.g. from the channel amplifier CA are insufficient to operate the signal receiver R. The amplification of CA is sufficient to compensate for the attenuation of the pad. The called party answer signal operates relay F which cuts out the pad P1 and connects up the signalling current from the source S. When this is received by receiver R it operates D which inserts a pad P2 in the line L2 to maintain the overall transmission equivalent constant. This signal remains on the circuit for the remainder of the conversation. If the distortion is due solely to overload on the amplifier CA then the pad P1 can immediately precede this amplifier, being switched in and out by relay D. A more sensitive signal receiver is necessary in this ease. Specifications 646,500 and 690,547 are referred to.
Patent GB-901454-A (GB)
Title: Improvements in or relating to bearings or mountings
Inventor: MUNSON HERBERT DOUGLAS
IPC: F16F1/40
Filed: 1957-10-03
Abstract: 901,454. Machinery mountings. AVIATION, MINISTER OF. Dec. 23, 1958 [Oct. 3, 1957], No. 30981/57. Class 80 (4). [Also in Group XXXII] A resilient machinery mounting comprises spaced parallel plates 1, 2, a resilient member 4, non-resilient members 3 preferably of metal, and having rounded ends, and a member 7 which limits lateral displacement of the plate 1 with respect to the plate 2. The rounded ends of the member 3 bear against plugs 6 of high tensile steel. The rubber layer 4 returns the plate 1 to its original position when the deflecting force is removed. The members 3 may be in the form of the central part of a sphere bounded by two planes parallel to and substantially equally spaced from the diameter of the sphere. If lateral movement is limited to one plane only, horizontal cylinders may be used. The rod 7 is welded to the plate 1 and engages a circular recess 9 in the lower plate 2. The rubber block 4 may be replaced by separate blocks or sleeves surrounding each of the members 3.
Patent GB-898937-A (GB)
Title: Improvements in or relating to article-directing means particularly for use with bakery dough-pieces
IPC: A21C9/08
Filed: 1959-09-11
Abstract: 898,937. Shoots. BARKER & SONS Ltd., THOMAS, COXON, G. L., and PARRY, J. H. July 5, 1960 [Sept. 11, 1959], No. 30993/59. Class 78 (1). A deflector 5, Fig. 1, controlling the alternate direction of successive articles such as dough pieces to one end and the other of two channels is pivotally mounted on a shaft 14 which is resiliently supported for downward displacement in response to the impact of an article on the deflector and which carries an arm 23 for co-operation with a fixed detent 30 to lock the shaft in one or other of the extreme positions of the deflector until released by the said downward displacement. The resilient shaft-supporting means is a spring 27, Fig. 2, which acts on a block 21 containing the shaft bearing 20, the block being guided for vertical movement by fixed studs 25 (Fig. 3, not shown) and cooperating clearance holes in the block. The arm 23 rotates with the shaft, the load on the deflector causing the latter to be depressed so that a formation 33 at the free end of arm 23 clears the detent 30, to be subsequently locked thereby in one extreme position of the arm 23 and deflector 5 when the oad is released. Specifications 805,202 and 837,459 are referred to.
Patent GB-352846-A (GB)
Title: Riveting guns
IPC: B25D9/14
Filed: 1930-10-17
Abstract: 352,846. Percussive tools. CHICAGO PNEUMATIC TOOL CO., 6, East 44th Street, New York, U.S.A.-(Assignees of Stevens, E. W. ; 6201, 2nd Boulevard, Detroit, Michigan, U.S.A.) Oct. 17, 1930, No. 31166. Convention date, Oct. 31, 1929. [Class 124.] A percussive tool giving single blows for riveting is started by pressing the tool on to the work. The handle 23 then slides on barrel 5 causing the control valve 16 to uncover the port 15 and live air enters to force the piston 6 forward. When the handle is released springs 18, 27 restore the valve 16 and air passing through the port 31 returns the piston 6. The return blow is cushioned by spring 22 and by air trapped between the projection 14a and the hollow piston. In this position ports 13, 24 coincide for exhausting. The collar 7a on the tool engages the seating 8a to prevent air leakage. The force of the blow is regulated by the speed at which the handle 23 is depressed. In a modification passage 31 is closed during the forward stroke.
Patent GB-1483757-A (GB)
Title: Cutting out of blanks
IPC: B21D28/08
Filed: 1974-07-15
Abstract: 1483757 Punching IWK PRESSEN GmbH 15 July 1974 [18 July 1973] 31175/74 Heading B4B [Also in Division B3] In a method of cutting adjacently disposed longitudinal rows of blanks from metal, paper &c. strip is fed to a stationary punch between punching strokes by a feed unit comprising a cam disc drive which moves the strip diagonally of the longitudinal feed direction, the longitudinal component a of the diagonal motion equalling the longitudinal offset of the blank positions in adjacent rows and the transverse component b at right angles thereto equalling the centre-tocentre distance between adjacent rows. For circular blanks, the angle between the diagonal longitudinal feed paths is 60 degrees. As shown, Fig. 5, a feed carriage 1, with a strip gripper 10, is movable in the direction C-C<SP>1</SP> along tracks 2 by means of a rotary cam 3 and a follower roller 4 mounted on a lever 5 which is pivoted to a fixed point E and has a pin and slot connection 6-8 with the carriage. The cam shown is shaped to carry out two diagonal feed steps in each of two opposite directions, to produce two rows of three blanks each for one cam revolution. At the end of each diagonal row, the gripper 10 is released and the strip is fed longitudinally through the distance c, Fig. 1, by a gripper 11a. Alternatively, a gripper 11b is mounted independently of the carriage.
Patent GB-1121618-A (GB)
Title: Improvements in or relating to hand tools
Inventor: LEARAD ARTHUR
IPC: A01G3/02
Filed: 1967-07-07
Abstract: 1,121,618. Pruning shears. HAND TOOLS Ltd. 7 July, 1967, No. 31297/67. Heading B4B. In a pair of pruners having handles 2, 3 each with an integral blade 4, 5 respectively and held together by a nut and bolt, each blade extending from a shoulder on the corresponding handle and being approximately half the thickness of the handle, the back edges of the blades each blend smoothly with the inside edge of the corresponding handle. The handles are urged to the open position by a spring 12.
Patent GB-895412-A (GB)
Title: Improvements in or relating to electric arc welding
IPC: B23K35/04
Filed: 1960-09-12
Abstract: 895,412. Welding by fusion. PHILIPS ELECTRICAL INDUSTRIES Ltd. Sept. 12, 1960 [Sept.15, 1959], No. 31350/60. Class 83 (4). In carbon dioxide shielded metal arc welding the electrode of iron alloyed with 0.3-2% manganese and 0.3-1.5% of a deoxidising metal, e.g. silicon, has a flattened crosssection with a width to thickness ratio between 2 to 1 and 10 to 1 and the current density is between 3000 and 30,000 amps/cm.<SP>2</SP>. The electrode 8 is fed by rolls 10 with its largest dimension perpendicular to the welding groove. The iron or steel parts 1, 2 being welded are held by tack-welded straps 3 on which is supported by wedges 7 a copper backing strip 5 having a milled groove 6. Specification 772,387 is referred to.