baber/WOPTO huggingface dataset:
Patent GB-591821-A (GB)
Title: Improvements relating to mobile cranes
IPC: B66C23/36
Filed: 1945-01-31
Abstract: 591,821. Cranes. LETOURNEAU, Inc., R. G. Jan. 31, 1945, No. 2470. Convention date, Jan. 22, 1944. [Class 78(iv)] In a mobile crane having a foldable mast and boom, the boom is turned down to a position lengthwise on top of the mast when the latter is in its lowered position. The mast 7, which consists of two pairs of upwardly converging legs 8, 9, Fig. 3, braced together, is pivoted on the wheel axles between the wheels and axle housing 2. The boom 11 consists of upper and lower pairs of transversely spaced arms 12, 13, the lower of which are pivoted at 14 to the head 10 of the mast and the upper of which are connected to the head by detachable pins 15. The legs 9 are pivotally connected to a pair of braces 16, which are themselves pivotally connected to a carriage 18, Fig. 4, movable along the body 1. A roller 19 facilitates the movement of the carriage and trunnions 20 prevents such movement when they arc secured by removable pins 22 in yokes 21 fixed on the body. When the pins 22 are removed, the carriage can be moved along the body until the mast rests in the shock absorber 23. Removal of the pins 15 allows the boom to be turned down on top of the mast. Lowering of the mast and folding of the boom are controlled by cables 27, 38 attached to winding drums 25, 26 driven by the engine of the tractor 5. The cable 27 passes from the drum 25 through a fairlead to a Sheave 28 at one end of the body 1. From this sheave it is passed to a sheave 29 at the other end of the body, is formed into a loop about a sheave 31 on the carriage 18 and a sheave 32 co-axial with the sheave 29, and is then passed over a sheave 33 on the mast and over a swinging sheave 34 depending from the boom to lifting tackle 35, 36. The cable 38 passes from the drums 26 over guide sheaves 40 in the head 10 to a sheave 41 in the boom. From this sheave it is passed over another sheave 42 in the head and is then reeved between a sheave 43 on the yoke 3 and a sheave 44 in the head 10, being deadended to the frame of the sheave 43 at 45. When the mast is to be lowered, the hook 36 is let down and engaged with an eye 37 on the body 1. The pins 22 are then removed and the drum 26 is actuated to wind on the cable 38. At the same time the drum 25 is actuated to pay out the cable 27 at a controlled rate. When the mast has been lowered, the pins 15 are taken out and the cable 38 unwound slowly to allow the boom to turn down.
Patent GB-943962-A (GB)
Title: Metal covered wooden door, window or like frames
IPC: E06B3/30
Filed: 1960-01-22
Abstract: 943,962. Window frames. PERSPEKTIVA A.S. Jan. 22, 1960 [Jan. 31, 1959], No. 2490/60. Heading E1J. A window, sash or door frame is constructed from wooden members 1 with metal cover plates 5 which may be clipped or slid into position. The lintel of Fig. 1 has a metal cover 5 with a convex facing portion, a U-shaped clip-in portion 7, and an eaves flange 10; whilst the wooden member 1 has a top recess with a vertical bearing face 3, and a groove 9 in its bottom face. In another similar embodiment the flange 4 lies over the back of the member 1. Fig. 5 shows a bottom sash member 17 with a metal cover 21 having top (doubled) and bottom flanges fitting into grooves in member 17. Another similar embodiment has a single top flange, and a doubled bottom flange. In these embodiments, the bottom sash member 17 runs through to the sides of the sash, with the metal covers 22 for the side sash members overlapping the cover 21, and the cover to the top sash member overlapping the tops of the covers for the side sash members. In the embodiments of Figs. 5, 6, provision is made for water to drain away fromthe groove in the top of the bottom sash member, by the integral U-section flange in Fig. 5, and by a separate U-section channel in Fig. 6, which shows a doubled glazed window. Specification 943,963 is referred to.
Patent GB-856626-A (GB)
Title: Improvements in or relating to the preparation of normally solid crystalline polymers of propylene
IPC: C08F10/00
Filed: 1957-01-23
Abstract: Propylene is polymerized in a hydrocarbon medium with a catalyst obtained by mixing in a hydrocarbon medium a halide of a Group IVa, Va or VIa metal, the metal being at a valency state of 3 or less, and an aluminium alkyl hydride or an alkali metal aluminium tetraalkyl, and the crystalline polypropylene obtained is then precipitated by adding a non-solvent such as methanol. Aluminium trialkyls such as aluminium triisobutyl may also be present in the formation of the catalyst.  Catalyst components specified are vanadium and titanium di- and tri-chlorides, chromium tribromide, lithium aluminium tetraheptyl, aluminium diisobutyl hydride and aluminium isobutyl dihydride. Compositions of the crystalline polypropylene with polyethylene, carbon, silica and unspecified blowing agents are dislosed. Specification 777,538 is referred to.ALSO:A catalyst for polymerizing propylene is obtained by mixing in a hydrocarbon medium a halide of a Group IVa, Va or VIa metal, the metal being in a valency state of 3 or less, and an aluminium alkyl hydride or an alkali metal aluminium tetra alkyl.  An aluminium trialkyl such as aluminium triisobutyl may be used additionally in the preparation of the catalyst.  Specified catalyst components are vanadium and titanium di- and tri-chlorides, chromium tribromide, lithium aluminium tetra heptyl, aluminium diisobutyl hydride and aluminium isobutyl dihydride.  Specification 777,538 is referred to.
Patent GB-610554-A (GB)
Title: Improvements in or relating to devices for caging the gimbal mountings of gyroscopes
IPC: G01C19/26
Filed: 1946-01-25
Abstract: 610,554. Gyroscopic apparatus. SVENSKA AKTIEBOLAGET GASACCUMULATOR. Jan. 25, 1946, No. 2530. Convention date, Jan. 25, 1945. [Class 97 (iii)] In a caging mechanism for gyroscopic apparatus a brake is applied to one of the gimbal rings before operation of the caging mechanism and is released before the instrument is uncaged. In the gyro vertical shown in plan, the rotor 10 spins about a vertical axis in the inner gimbal 14, the trunnions 15 of which pivot in the outer gimbal 18, pivoting in turn at 20, 21 in the fixed support 22. Caging is effected by ring gears 23, 24 geared to a spindle 27 so as to rotate in opposite directions and provided with stop members 33, which converge on a key member on the trunnion 15. The spindle 27 has a pin 41 engaging an oblique slot 39 in a sleeve coupling 37, connected by a pin 40 and slot 38 with a shaft 36. When the latter is turned, e.g. by an electric motor, in the direction of the arrow 43 to effect a caging operation, the spindle 27 is at first frictionally held at 42 so that the sleeve 37 is moved to the right by the pin 41 and slot 39. This movement brings a brake pad 35 into contact with a brake disc 34 on the ring 18. Thereafter the drive is communicated to the spindle 27. When the shaft 36 is driven in the reverse direction, the sleeve 37 is moved to the left and the brake pad 35 withdrawn before the gyro is uncaged. Specification 524,204 is referred to.
Patent GB-395622-A (GB)
Title: Improvements in switch mechanism for electric transformers
IPC: H01H9/00
Filed: 1933-01-26
Abstract: 395,622. Regulating-switches ; hightension switches JANSEN, B., 7, Brunnleite, Regensburg, Germany. Jan. 26, 1933, No. 2544. Convention date, Jan. 26, 1932. [Class 38 (v).] In a tap-changing switch for transformers, sparking at the contacts is prevented when changing from one tap to another by temporarily inserting an electrolytic resistance between the taps. Fig. 2 shows one form in which the taps 1 .. 4 are connected to contacts immersed in an electrolyte and adapted to be engaged by plunger contacts A .. D connected to one pole of the secondary circuit. To change from one tap to the adjacent tap, the plunger engaging the particular tap contact, in this case the plunger C, is raised, and the adjacent plunger B or D simultaneously depressed. The contacts are arranged in separate compartments Ga . . Gd, which communicate with each other and with another compartment fed: with electrolyte from a storage vessel by coiled tubes R of small cross-section. The plungers are hollow so as to disturb the liquid as little as possible. Above the electrolyte, the casing is nearly filled with oil. In a modification, a heavy liquid such as tri-cresyl phosphate is arranged below the electrolyte, the plungers in this case operating from below. Fig. 4 shows a modification in which the taps 1, 2, 3 are connected in succession with the terminals A, B, C by rotating a tube containing mercury with electrolyte above it.
Patent GB-1253416-A (GB)
Title: Document feeding apparatus
IPC: B65H3/04
Filed: 1969-01-16
Abstract: 1,253,416. Feeding sheets. XEROX CORP. 16 Jan., 1969 [17 Jan., 1968], No. 2638/69. Heading B8R. Sheets are separated from the bottom of a stack supported on inclined tray 12, fed upwardly to control means 16 which prevents passage of more than one sheet and finally presented to further transport means 20, e.g. conveyer belt 85. Pile support.-Tray 12 comprises side walls 62, end wall 61 adjustable for different sheet lengths, and stop member 64 adjustable to support different sheet widths. Pressing member 66 is pivoted into engagement with the pile by springs 67 to clamp the pile and hold it against the separator. Sheet separator.-The separator 14 comprises one or more intermittently driven friction belts 30, or may comprise one or more rollers (not illustrated), which project through aperture 30 in the base of tray 12 . Supplementary devices preventing double feed.- The separator 14 forwards the bottom sheet upwardly between driven friction feed rollers 40 and co-operating, counter-rotating, slip rollers 42 which latter prevent the passage of more than one sheet into curved guide passage 68. Rollers 40 and 42 may be formed of a soft elastomeric compound to provide good friational contact. Sheet carriers and forwarders; sheet guides.- The separated sheets are advanced through curved guideway 68 by feed rollers 70, 71 and presented to friction belt 85. The sheets are carried forward on the lower run of belt 85 to overlie platen 26, e.g. of a document copying machine. In such a machine belt 85, Fig. 3, may comprise a flexible light reflecting layer 92 (e.g. of white rubber, light coloured polyolefin or neoprene) and a layer 93 of flexible electrically conductive material (e.g. graphite impregnated rubber or neoprene). Registering sheets.-A sheet is advanced by belt 85 until its trailing edge passes stop 82, whereupon the belt is reversed to bring the trailing edge into engagement with the stop. Engagement of the sheet with the stop on reversal of the belt is aided by idler roller 88 which presses downwardly on the belt. Control of operation.-The feeder may be set to feed sheets continuously to the platen 26 or merely to feed a single sheet thereto and then cease operation. The leading edge of a separated sheet being fed towards platen 26 strikes a switch arm (178<SP>1</SP>, Fig. 6, not shown) which disengages the drive to separator 14 and unit 16. As the trailing edge of the sheet passes beyond the switch arm the belt 85 is halted and then reversed to register sheet against stop 82. After a predetermined period in the registered position the feed is restarted to move the registered sheet by way of belts 95 into tray 24 and to separate a further sheet. If no sheet trips the switch (178<SP>1</SP>) upon starting of the feed the feed is de-energized.
Patent GB-640408-A (GB)
Title: Improvements in and relating to circular knitting machines
IPC: D04B9/46
Filed: 1948-01-29
Abstract: 640,408. Knitting-machines. PERKINS, C. W. Jan. 29, 1948, No. 2644. [Class 74 (ii)] The quadrant gear 17 for imparting a reciprocatory motion to a circular machine is driven through a connecting link 19 having a forked end 20 which extends on each side of the quadrant to engage a pin 18. The opposite end of the link 19 is connected to a crank-pin 15 on a crank 14 which is mounted on the crank-shaft 13 of the machine. The crankshaft derives its motion from the main shaft 10 of the machine through gearing 11, 12.
Patent GB-551867-A (GB)
Title: Improvements relating to battery-filling devices
IPC: H01M50/609
Filed: 1942-03-02
Abstract: 551,867. Accumulators ; regulating liquid levels. TOWNSEND, T. T. March 2, 1942, No. 2710. [Class 53] [Also in Group XVIII] For maintaining the level of the electrolyte in an accumulator, a reservoir 26 has a flowcontrol member 40 having one or more passages extending from the reservoir to the cell. The neck 32 of the reservoir may be secured to the cell by a cap 22 which embraces the neck and engages the filling aperture 14, vent passages being formed in the member 40 or in the cap 22. The member 40 may be integral with the. cap 22. The passages in the member 40 may have a capillary port at their lower end. Numerous modifications of the member 40 and the method of mounting the reservoir on the cell are described. Specification 320,026, [Class 53], is referred to.
Patent GB-992108-A (GB)
Title: Improvements in or relating to rubber compounds
IPC: C08L23/22
Filed: 1964-01-22
Abstract: A rubber compound comprises a mixture of (1) from 10 to 90 parts by weight of a polybutadiene containing monomeric units of cis-1,4-, trans-1,4- and 1,2-addition, in which the cis-1,4-addition units form at least 30% by weight of the polymer and (2) from 90 to 10 parts by weight of at least one modified isobutylene-isoprene copolymer (defined), the total of the parts by weight of the elastomeric components of the mixture being equal to 100.  By the term "modified isobutylene-isoprene copolymer" is meant a reclaimed product of a vulcanized isobutylene-isoprene copolymer with a halogenating agent, such as a chlorinating or brominating agent, including the elementary halogens, chlorine and bromine.  From 10 to 55 parts by weight of a butadiene-styrene copolymer containing butadiene and styrene in a ratio by weight of between 49:1 and 13:7 may be included in the rubber compound. The rubber compound is mixed with the usual vulcanizing agents, fillers, plasticizers and antioxidants and is fabricated into motor vehicle tyres.
Patent GB-158552-A (GB)
Title: A photographic method for the pictorial reproduction of a solid
IPC: G03F7/00
Filed: 1921-01-21
Abstract: 158,552. Lumiere, L. Jan. 21, 1920, [Convention date]. Statuary, reproducing.-A method of reproducing a solid object or groups of objects consists in taking successively photographs of different parallel planes of the object and combining transparent images of these planes in relative positions corresponding to the scale of reproduction. One method is based on the fact that if the lens of the camera O, Fig. 1, is moved to O<1> and the sensitive plate moved during each exposure a corresponding distance p<1>, P" based on the ratio (p + p<1>) : p, then all the points in the plane Po will always be sharply focused on the image plane Pi, but other points in different planes such as a point P, whose images are at P1 and P11 in the two positions of the lens respectively will not be sharply reproduced. In one construction of apparatus the camera lens O, Fig. 2, and the plate R are mounted on eccentric arms bi, bo, respectively, whose lengths have the above ratio (p + p<1>) : p. These arms are moved continuously during each exposure by rotating one of the shafts a, which are mounted between fixed frames e. The camera support r is adjustable on slides u for reproducing successive planes. A modified method is based on the fact that if the lens O, Fig. 3, is moved to 0', the shifted image of a point P can be restored to the original position at P' if PO=OP', and an inverting prism or minor combination is used in conjunction with the lens. For this purpose apparatus, Fig. 4, is constructed using two Porro prisms g, g' which may be on either side of the lens O as in Fig. 5, or jointed together as in Fig. 6. The focal plane containing the sensitive plate is rigidly mounted on the support v and the lens panel O P is counterbalanced by a weight k and moved continuously in its own plane during each exposure, angular movement being prevented by a jointed linkwork n. The whole camera is movable towards and away from the solid reproduced by guides h for successive exposures.
Patent GB-1180208-A (GB)
Title: 5-Nitrofuran Derivatives
IPC: C07D239/24
Filed: 1969-01-17
Abstract: 1,180,208. Nitrofuran derivatives. BOEHRINGER MANNHEIM G.m.b.H. 17 Jan., 1969 [20 Jan., 1968], No. 2844/69. Heading C2C. Novel nitrofuran derivatives of Formula. I in which each of R 1  and R 2  is hydrogen, hydroxy, C 1-3  alkyl, C 1-3  alkoxy, amino or acylamino, and R 3  is hydrogen, hydroxy, C 1-3  alkoxy, amino or acylamino, are prepared (a) by nitrating a compound of Formula II and, if necessary, subsequently saponifying any alkoxy or acylamino group which is present in the resulting compound; or (b) for compounds I in which R 1  is hydrogen, hydroxy or C 1-3  alkyl, R 2  is hydrogen, C 1-3  alkyl, amino or acylamino and R 3  is hydrogen or hydroxy, by condensing 5-nitro-2-furamidine with a #-dicarbonyl compound of formula R 4 -CO-CH(R 5 )-CO-R 6 , in which R 4  is hydrogen, C 1-3  alkyl or C 1-3  alkoxy, R 5  is hydrogen, C 1-3  alkyl or acylamino and R 6  is hydrogen, hydroxy or alkoxy, or with a functional derivative thereof, and, if necessary, saponifying the acylamino radical; or (c) for compounds I in which R 1  and R 2  are hydrogen atoms or C 1-3  alkyl radicals and R 3  is hydroxy or C 1-3  alkoxy, hydrolysing or alcoholysing a compound of Formula III in which R 7  and R 8  are hydrogen or C 1-3  alkyl and X is halogen. Compound I in which one or more of R 1 , R 2  and R 3  is an amino group can be converted into physiologically compatible acid addition salts by reaction with appropriate acids. Starting materials of Formula II are prepared by reacting furamidine with a #-carbonyl carboxylic acid ester or an α-substituted #-dicarboxylic acid ester to form a corresponding 2-hydroxy- or 2,4-dihydroxy-pyrimidine, chlorinating this to form a 2-chloro or 2,4-dichloropyrimidine, and wholly or partially replacing the chlorine atoms by hydrogen atoms by catalytic hydrogenation, by amino groups by reaction with ammonia, by alkoxy groups by reaction with alkali metal alcoholates or by hydroxy groups by reaction with water. Starting materials of Formula III are prepared by nitrating compounds of Formula II in which R 3  is a halogen atom. The preparation of the following intermediates and starting materials by other methods is also described: 2 - (2 - furyl) - 5 - nitropyrimidine, 2 - (2 - -furyl) - 5 - aminopyrimidine, 2 - (2 - furyl) - 4 - or 5 - acetylaminopyrimidine, 2 - (2 - furyl) - 4 - acetylamino - 5 - methyl - 6 - chloropyrimidine, 2 - (2 - furyl) - 4 - methyl - 6 - acetylaminopyrimidine, 2 - (2- furyl) - 4 - acetylamino - 5 - methylpyrimidine and 2 - (2 - furyl) - 6 - chloro - 4-hydroxypyrimidine.
Patent GB-1124201-A (GB)
Title: Shoring jack
Inventor: SQUIRE ROBERT KELVIN
IPC: E04G25/04
Filed: 1966-01-22
Abstract: 1,124,201. Shoring and bracing jacks. SUPERIOR SCAFFOLD CO. 22 Jan., 1966 No. 3021/66. Heading B8J. A screw jack for trench shoring or bracing purposes is provided with a foot and/ or head plate adapted for universal movement relativethereto to which end the base 11 of the jack is welded or brazed to a rocker 32 co-operating with a free floating, concave or planar load-transmitting element 31 contained within a housing 23.
Patent GB-193641-A (GB)
Title: Improvements in and connected with hair cutting or shaving devices
IPC: B26B21/42
Filed: 1922-02-02
Abstract: 193,641. Gaunt, C. F. Feb. 2, 1922. Hair-cutting appliances of safety-razor type; razors, safety. The spaces between the teeth of the guard of a hair-cutting or shaving device of the safety-razor type are cleaned by resilient toothed members 10 the teeth 10<a> of which engage between the teeth of the guard and can be moved through the spaces between such teeth. As shown the members 10 comprise spring arms formed integrally with a collar 9 connected to the handle 8 of the razor, &c. and normally occupying a position with the teeth 10<a> ot or near the outer extremities of the teeth 7 of the guard 5. When using the device the arms are compressed to force the teeth 10<a> inwards and when released, the arms automatically move outwards and remove any hair or other matter adhering to the teeth 7. The arms 10 may be connected by metal links 11.
Patent GB-386801-A (GB)
Title: Induction pipes for internal-combustion engines
IPC: F02M1/00
Filed: 1932-02-02
Abstract: 386,801. Cylinders. HUMBER, Ltd., Stoke, Coventry, and ORD, L. C., Cavendish House, Cavendish Road East, Nottingham. Feb. 2, 1932, No. 3094. [Classes 7 (ii) and 7 (iii).] An induction pipe has, at different places, rectangular sections, the longer sides of which have different inclinations. A branch 8, 4 of a manifold is rectangular throughout its length, the longer sides being horizontal at 2, vertical at the bend 7, and horizontal again at the point 6 of attachment to the cylinder block; mixture is supplied from a down-draught carburetter through a passage 5. The manifold is bolted at the centre to, and has fins projecting into, the exhaust manifold, to form a hot spot. The manifold described is for a six-cylinder engine and comprises a central branch and two opposed branches 8, 4 which may or may not be horizontal; each branch supplies two cylinders but may be bifurcated at its ends. The change in section along the ports 8 may be gradual the walls being similar tapering members and the section square at the middle ; alternatively the intermediate section may be circular or oval. Specification 386,802 is referred to.
Patent GB-118593-A (GB)
Title: Instrument for Transferring Lineal Measurements.
IPC: G01B5/06
Filed: 1918-02-21
Abstract: 118,593. American Machinery Import Office Soc. Anon., and Brandli, C. F. July 23, 1917, [Convention date]. Beam compasses.-Relates to measuring instruments, and consists in the provision of alternative scales, each with a vernier that conceals the graduations to which it does not relate. Where two scales are provided, they are arranged side by side and are graduated in reverse directions. Fig. 7 shows the adaptation to a beam compass wherein the scales are marked upon a rack 5 fitted to an adjustable collar 4 on the beam 1, a collar is provided for one of the points 21, the other point 22 being mounted upon the cursor 8 and being exchangeable for a drawing pen or pencil.
Patent GB-328600-A (GB)
Title: Improvements in and relating to guiding means for travelling, suspended cars, aircraft, or the like
IPC: B61B3/02
Filed: 1929-01-30
Abstract: 328,600. Bennie, G. Jan. 30, 1929. Ways and guides, for aicraft.-A guiding means for aircraft or travelling cars designed to travel along an overhead track and to be guided at their lower ends along a rigid track comprises a sliding member so mounted as to be capable of sliding thereon trans - versely to the lower track, the movement of the sliding member being restrained by compression springs. In Fig. 1, a is a, casting, bolted to the underside of the car, through which casting pass two rods b<1>, b<2> at right angles to the lower track c. A casting d is slidably mounted on the rods b<1>, b<2> and carries in bosses E<1>, E<2> two guiding-wheels e<1>, e<2> having ballbearing hubs. A pair of sleeves f<1>, f<2> are loosely mounted on the rods b<1>, b<2>. The sleeves are formed with internal flanges F<1>, F<2>, and external flanges F<10>, F<20>. Light coil springs g<1>, g<2> are fitted over the rods b<1>, b<2> and are located between the end walls of the casting d and the flanges F<1>, F<2>, and heavy coil springs h<1>, h<2> are located between the flanges F<10>, F<20> and a central annular abutment i provided on the fixed casting a. In another arrangement a guiding-device, such as described, is placed to engage with the lower track midway between two bogies on the upper track to bank the suspended car when going round curves. Specification 191,760 is referred to.