baber/WOPTO huggingface dataset:
Patent GB-717249-A (GB)
Title: Improvements in crop spraying machines
IPC: A01M7/00
Filed: 1951-12-03
Abstract: 717,249. Crop-dusting machines. WATSON, L. H. Dec. 3, 1952 [Dec. 3, 1951], No. 28271/51. Class 6 (1). [Also in Group XXIX] A spraying machine, particularly for spraying crops with fluid, powder, or dusts, comprises a spray-carrying boom 2 which extends to one side of the machine and is capable of swinging in a direction contrary to the direction of travel, spring-controlled means associated with a cam or like member of irregular shape being provided to maintain the boom in its normal spraying position, such means being capable of yielding upon the application of a force to enable the boom to swing inwards. A similar boom may be mounted on the other side of the machine. In the construction shown, the boom includes an upright 5 and stay 6, the upright having lugs 7 whose sleeves 8 are pivotally mounted on bolts 11 extending from blocks 10 carried by an upright 4 on the machine frame. Friction discs 13 may be mounted between the block and a plate 9 located below the sleeve. Each block 10 is of polygonal form, and co-operating with the faces of the lower block is a spring-loaded plunger 15 extending from a cylinder 14 on the boom 2. Such construction serves to maintain the boom in position in normal use and to enable the boom to fold inwards when the force applied by an obstruction is sufficient to overcome the force of the plunger. In a modification (Fig. 3, not shown), the two co-operating parts are mounted around the pivot and are urged towards each other by a spring, one part having recesses which can be engaged by a projection on the other part. Fig. 2 shows the boom lying against the side of the machine (i.e. in an inoperative position) ; in such position, the lower block 10 may be swung about a horizontal connection with the upright 4 of the machine and the boom upright 5 can then be held in any inclined position by pins or the like extending through the upper block into any one of a number of holes in a frame member 16.
Patent GB-226651-A (GB)
Title: Improvements in and relating to grabs
IPC: B66C3/06
Filed: 1923-11-10
Abstract: 226,651. Barnard, D. J. Nov. 10, 1923. Grab-buckets.-Relates to single-chain grabs of the type having spreader arms 8 pivoted to independent top cross bars 6, 7, and means such as telescopic rods and guides on the grab-head, the lower sheave-block 12 and the lower cross beam for guiding the moving parts into the correct position for locking the lower cross beam to the lower sheave block by means of a gravity catch such as a hook 15 pivoted on the lower sheave block at 14 and engaging a pin 16 on the lower cross beam. Improved means for securing the gravity catch 15, 16 whilst the load is supported from a transporter carriage comprises a hook 20 which is pivoted on a member 21 sliding in the grab-head and is adapted to engage a pin 19 on an upward extension of the hook 15 when the member 21 is suspended from the transporter carriage and the hoisting rope is slackened. As shown in end view in Fig. 3, the lower part of the member 21 is forked, straddles the upper sheave-block 22 and moves in guides 23 on the grab-head. When the pin 19 is engaged by the hook 20 as described above, the lower ends of the guides 23 rest on projections 30 at the lower end of the member 21 so that the whole of the weight is taken by the transporter carriage through the member 21. The operation of the gravity catch 15 is as follows. With the brackets closed and the lower sheave-block in the position shown, a weighted arm 17 on the hook 15 is free to turn the catch aside and release the pin 16 on the lower cross beam when the brackets are lowered and rest on the ground with the hoisting rope slack. The buckets are then opened by hauling in the rope. When the rope is again payed out, the lower sheave-block 12 is lowered away from the upper block 22, and the rod 26 is free to be moved upwards by the spring 29 so that a plate 25 on the rod lifts the arm 17 and holds the hook 15 yieldingly in the locking position. Specification 187,060 is referred to.
Patent GB-1114425-A (GB)
Title: Improved circuit arrangement for controlled semi-conductor devices
IPC: H03K17/73
Filed: 1965-07-05
Abstract: 1,114,425. Thyristor circuits. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. 5 July, 1965 [3 July, 1964], No. 28464/65. Heading H3T. [Also in Division H2] In a circuit for supplying a load with three phase current from a D.C. source via six power thyristors and inductances, each thyristor is shunted by an auxiliary thyristor in series with a quenching capacitor, and two resistors are provided for charging the capacitors in the two halves of the circuit. In Fig. 5 the power thyristors 1, 13, 14, 15, 16, 17 have their auxiliary thyristors 5 and quenching capacitors 6 in series with diodes 5b. The capacitors resonate with inductors 8 and the presence of resistors 10, 18 and diodes 5b, 7b ensures that the capacitors can charge up to the full supply voltage U, and that leakage through the auxiliary thyristors 5 when the power thyristors are on for a long time will not reduce the capacitor voltage too much for efficient quenching. The supply of charging current through resistors 10, 18 is further controlled by extra thyristors 7a and diodes 12a. The three-phase pulsed output is taken via centre-taps of transformers to points R, S, T. The voltage across a-b or a-c can be used to check that the three capacitors are charged sufficiently in the reverse direction. The arrangement of the capacitor, auxiliary thyristors, diodes, resistor and inductance may be varied (Figs. 1-4, not shown). An extra resistor (10) may be present for aiding charging of the capacitor in the opposite half-cycle to charging through resistor 9. The load may be a motor.
Patent GB-190589-A (GB)
Title: Improvements in or relating to anti-vibration devices for vehicles
IPC: B62K25/14
Filed: 1921-10-26
Abstract: 190,589. Draper, A. D. Oct. 26, 1921. Spring devices.-In a spring suspension system shown applied to a cycle, links a connected to the sprung portion of the system, of which they form an essential part, have each a threaded extension b carrying a nut d which, without any lateral movement of the links, effects the adjustment of a spring g which presses a non-rotatable friction member e against a friction member h secured to the unsprung member k, friction material n being placed between the friction members. Rotation of the member e is prevented by the engagement of a clip f secured to it and embracing the link a. In another form, the links a are located between the members k. As applied to a front suspension for a velocipede, links c, Fig. 5, straddle the wheel which supports the steering head a through a spring b whose movements are restrained by the vibration damper d. Fig. 6 shows a rear suspension for a velocipede.
Patent GB-899730-A (GB)
Title: Improvements in or relating to speed responsive linear actuators
Inventor: HOOPER VICTOR FREDERICK JAMES
IPC: G05D13/08
Filed: 1957-09-10
Abstract: 899,730. Speed governors. PLESSEY CO. Ltd. Oct. 29, 1958 [Sept. 10, 1957], No. 28479/57. Class 57. [Also in Groups XIX and XXXVIII] Mechanism for linearly displacing a slidable member 8 against the action of a spring 6 in proportion to the speed of rotation of a shaft 3 uses the axial thrust of a set of balls 2 interposed between a spherically-shaped concave surface 1 of a body and a guide plate 10, the balls, body and guide plate being arranged to rotate jointly about a common axis extending through the centre of the sphere at right-angles to the surface of the guide plate 10. As shown, the shaft 3 is driven by a constant-field directcurrent electric motor supplied with voltage derived through an amplifier, from a thermosensitive circuit element, e.g. a thermo-couple. Also, as shown, the member 8 is part of a slidevalve axially supported through a ball bearing 9 on the plate 10.
Patent GB-804204-A (GB)
Title: New quinuclidines and process for their manufacture
Filed: 1955-10-06
Abstract: The invention comprises 3-oxy-quinuclidines unsubstituted in positions 2, 4, 5, 6, 7 and 8, but further substituted at the 3-position by a free or functionally converted carboxyl group, salts and quaternary derivatives thereof and a process for their manufacture by additive combination of 3-quinuclidone, with hydrocyanic acid, followed if desired by conversion of the nitrile group in the resulting compound into a free or functionally converted carboxyl group and/or into a salt or quaternary derivative thereof. The hydrocyanic acid is preferably used in the form of an alkali metal salt and the HCN liberated by reaction with an acid addition salt of the quinuclidone.  Specified functional derivatives include esters, acid chlorides and amides, and salts may be formed with e.g. hydrohalic, sulphuric, nitric, phosphoric, thiocyanic, acetic, propionic, oxalic, malonic, malic, succinic, methane sulphonic, ethane sulphonic, oxyethane sulphonic, benzene and toluene sulphonic acids, and quaternary derivatives with reactive esters of lower alkanols, e.g. alkyl halides, dialkyl sulphates and alkyl esters of organic sulphonic acids.  In examples: (1) aqueous potassium cyanide is added dropwise to cooled aqueous 3-quinuclidone hydrochloride and the precipitated cyanohydrin crystallized from dioxane and characterized as its picrate; subsequent treatment with concentrated HCl yields the hydrochloride of 3-oxy-quinuclidine-3-carboxylic acid, which (2) is treated with methanol saturated with dry HCl to yield the hydrochloride of 3-oxy-3-carbomethoxy-quinuclidine; subsequent treatment with cooled aqueous potassium carbonate liberates the free base, which (a) with methyl iodide in acetone gives a methiodide, and (b) on heating at 110-30 DEG  C. yields the N-methyl-betaine of 3-oxy-quinuclidine-3-carboxylic acid as a monohydrate; (3) 3-oxy-3-cyano-quinuclidine is treated with methanol saturated with HCl for 24 hours at 20 DEG  C. then refluxed and concentrated in vacuo whereupon basification gives 3-oxy-3-carbomethoxy-quinuclidine.ALSO:Therapeutic compositions having sympathomimetic properties and useful for treatment of disturbed peristalsis, comprise 3-oxy-quinuclidine which is further substituted at the 3-position by a free or functionally converted carboxyl group, or salts or quaternary derivatives thereof, together with an organic or inorganic carrier suitable for enteral, parenteral or topical administration.  Specified carriers include water, gelatine, lactose, starches, magnesium stearate, talc, vegetable oils, benzyl alcohols, gums, polyalkylene glycols, petroleum jelly, and cholesterol, and the preparations may further contain preserving, stabilizing, wetting, emulsifying or other therapeutic agents, or salts as buffers or osmotic agents.
Patent GB-859542-A (GB)
Title: Apparatus for continuously re-reeling webs delivered from reel-fed printing or analogous machines
IPC: B65H19/10
Filed: 1957-10-30
Abstract: 859,542. Feeding webs. TIMSON, E. A. Oct. 29, 1958 [Oct. 30, 1957], No. 28665/60. Divided out of 859,386. Class 100(1) An apparatus for continuously rewinding a web W<SP>2</SP>, e.g. delivered from a reel-fed printing machine, comprises an endless belt 15 which feeds the leading end of the web W2, after cutting by a knife 20, to an empty spool R<SP>3</SP>, such that it is pressed firmly against and is caused to adhere to the spool. After a length of web W<SP>2</SP> has been wound on the spool R<SP>3</SP>, the spool R3 is moved from the position S<SP>2</SP> to the rewinding position S previously occupied by a full roll R2. The full roll R<SP>2</SP> is thus moved to an unloading position S<SP>1</SP>. Arms 12, 13, 14 carrying the rolls are intermittently rotated. The belt 15 is guided round rollers 18 one of which is driven, e.g. by the printing or other machine, and is tensioned by a jockey pulley 16.
Patent GB-445043-A (GB)
Title: Improvements in cans or containers for enclosing bottled products
IPC: B65D85/30
Filed: 1934-10-08
Abstract: 445,043. Cans. THOMASSON & CO., Ltd., T., and TAYLOR, G., Shrub Hill, Worcester. Oct. 8, 1934, No. 28709. [Class 66] The wall of a can for enclosing a glass bottle or jar 2 containing preserved products is formed with two or more apertures 7 of elongated form separated by vertical bars 8, narrower than the apertures. Strengthening corrugations 9 are provided at the edges of the apertures, and the bars may be formed with central vertical corrugations. Specifications 337,440, [Class 66], and 423,916 are referred to.
Patent GB-1138542-A (GB)
Title: Melamine-formaldehyde solution and its use in the production of rapid-curing laminates of improved stain resistance and lustre retention
IPC: D21H17/51
Filed: 1966-06-28
Abstract: 1,138,542. Impregnated paper laminates. PLASTICS MFG. CO. 28 June, 1966 [21 July, 1965], No. 28827/66. Heading B5N. [Also in Division C3] Paper sheets which are used as laminates to give a surface with good stain resistance and retention of lustre are impregnated with an aqueous soln. obtained by condensing 1 mole of melamine with 1 to 1À9 moles of formaldehyde and containing, as latent curing catalyst, a water soluble salt of aluminium or zinc. Examples relate to the use of the sheets in the decorative surface of plates in which they are laminated (e.g. at 315‹ F. and 3000 p.s.i. for 45 sees.) to a conventional α cellulose filled melamine formaldehyde moulding. In the examples the strain resistance of the products is compared with laminates in which a higher formaldehyde: melamine molar ratio was used in the impregnating resin.
Patent GB-1510576-A (GB)
Title: Electrical accumulator cell
IPC: H01M10/24
Filed: 1976-07-12
Abstract: 1510576 Zinc electrodes for accumulators TUDOR AB 12 July 1976 [16 July 1975] 28907/76 Heading H1B An electrode for, e.g. an alkaline secondary battery comprises a central conductor 13 of perforated iron, having nets 14 on each side of, e.g. plastics or metal (Ni plated Fe), the nets being filled with zinc material. The nets are connected to each other through the perforations. The electrodes may be vibrated by means of a shaft (Fig. 1, not shown).
Patent GB-364031-A (GB)
Title: Improvements in and relating to electric circuit breakers
IPC: H01H33/98
Filed: 1930-09-26
Abstract: 364,031. Oil-break switches. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Paul, W. E. ; 1048, Waverly Place, Schenectady, New York, U.S.A.) Sept. 26, 1930, No. 28918. Convention date, Sept. 26, 1929. [Class 38 (v).] In a liquid - break switch, the arc formed on breaking circuit is divided into series-connected sections and the pressure formed by one section is used to cause a blast of fluid across another section to rupture that other section.. A fixed contact 10 is located at the base of a metal oil pot 6 and is engaged in the closed position by a contact rod 2, which is arranged, in closing, to separate a pair of spring-pressed conducting members 17, 18, which are slidable in slots 16 in a partition 15. A further partition 22 receives the foot of an insulating surround 23 for the rod 2, and also supports a pair of cylinders 25, 26 containing pistons 27 and springs 28 therefor, the ends of the cylinders projecting down so as to open into the lower chamber under the partition 15. As the rod 2, in opening circuit, leaves the contact 10, an arc is drawn between the two and sets up an increase of pressure in the lower chamber, part of this increase being absorbed by the pistons 27. As the rod 2 moves through the members 17, 18 the arc is transferred to the latter, which now come together, and a further arc is set up between them and the rod 2. The pressure in the lower chamber, acting through an aperture 21 in the partition 15, directs a cooling stream of fluid across the arc in the upper chamber between the partitions 15, 22, the stream exhausting through an aperture 24 in the partition 22 into the main body of the housing 6. The pressure stored in the cylinders 25, 26 serves to prolong the stream after the effect of the initial arc has been spent, and the stream may be arranged to be confined within a narrow channel by restricting the size of the upper chamber. Two such rods 2 may be arranged in pots side-by-side and operated by a bridge carrying main air-break contacts, Fig. 1 (not shown). The rod may be arranged to move downwards instead of upwards, to break the circuit. Specification 193,136, [Class 38 (v), Electric switches &c.], is referred to.
Patent GB-1022237-A (GB)
Title: Improvements in or relating to sponge mops
Inventor: SADLER LESLIE REGINALD
IPC: A47L13/14
Filed: 1963-07-22
Abstract: 1,022,237. Sponge mop. BETTERWEAR PRODUCTS Ltd. July 22, 1963, No. 28950/63. Heading A4F. A sponge mop comprises a head including a member 10 carrying a sponge 8 and a plate 11 which has a part for carrying a handle 27 pivotally connected thereto and also carries a locking device in the form of a spring biassed pin 24 which can engage the handle carrying part to lock the handle in a predetermined angular position with respect to the plate. The pin 24 comprises a length of spring wire extending through a V-shaped slot 22 and the ends of which pass through holes 20 and 21 in flanges and 19 of a bracket 17. The handle socket can be positioned so that holes 25 and 26 therein coincide with the holes 20 and 21 and the wire is drawn through the holes 25 and 26 to retain the handle locked in this position. The sponge is releasably secured to the member 10 by clips 6 passing through sloths 5 in the member. The member may be a sheet of plastics such as polypropylene.
Patent GB-989586-A (GB)
Title: Apparatus for making the conical tip of leads for writing and drawing
IPC: B43L23/04
Filed: 1963-07-23
Abstract: 989,586. Pencil sharpeners. ARDIS S.p.A. July 23, 1963 [Aug. 8, 1962], No. 29029/63. Heading B6P. A pencil sharpener comprises a cylindrical member 1, Fig. 1, having an annular gear 6 and a pin 9 fixed thereto, the pin 9 acting as a pivot for a member 2, Figs. 1 and 2, rotatable on the member 1 and including a tubular guide 22 for a lead-holder 30. The member 2 supports on a pin 23 a rotatable unit comprising a gear 28 engaging the gear 6 and a disc 27 having teeth 32 or an abrasive surface for engaging the lead 31, a spring 24 urging the disc towards the lead. In operation, the holder 30 is held and used as a crank to rotate the member 2 about the pin 9, thereby causing the disc 27 to rotate about the pin 23, while the lead 31 rotates, with respect to the guide 22 and the disc 27, once about its own axes for each revolution of the member 2. Where the disc 27 sharpens by means of teeth 32, the latter are arranged so as to move longitudinally of the lead when near the point thereof. A stop on the end of the pin 23 prevents wearing away of the lead if the operation is prolonged unnecessarily. Several grades for holders at different angles may be provided, for obtaining more or less sharply pointed tips.
Patent GB-630826-A (GB)
Title: Improvements in tool retainer and aligner for percussive apparatus
IPC: B25D17/08
Filed: 1947-11-04
Abstract: 630,826. Percussive tools. HIRSCHBERG, C. A. Nov. 4, 1947, No. 29396. Convention date, Sept. 8, 1944. '[Class 124] A collared steel is releasably retained and aligned in a percussive drill by a coupler body of cruciform shape supported for rotation about its transverse axis, the crossed arms having axial passages, one of sufficient diameter to pass the collar, the other passing the steel shank but not the collar, and adjacent arms in diagonally opposite sections having portions cut out to allow rotation of the body to dispose one or other of the passages in alignment with the steel. As shown, a collar 17 on a steel 13 may pass through a passage 30 in one arm of a cruciform coupler body 20, but not through another passage 31. Portions 32, 33 are cut from passages 30, 31 in diagonally opposite sections of the body so that it may be rotated by a handle 36 to dispose the passage 31 in alignment with the steel. The body 20 is supported' in bearings 22 attached to the tool body 10 by studs 23 and springs 28. The bearings may also house spring-operated detents 41 co-operating with flats 43 on trunnions 21 of the body 20 to retain the body in the desired position. The body 20 may be reversed in its bearings to equalize wear.
Patent GB-234002-A (GB)
Title: Improvements in ball-catching devices for games
IPC: A63B59/02
Filed: 1924-12-08
Abstract: 234,002. Mairhofen, E. F. von. Dec. 8, 1924. Catching-appliances.-A ballcatching device for use in playing games is provided with two longitudinal plates a, b pivoted upon a plate g at an angle of 45‹ to one another. Blade springs d regulated by screws f press the plates against stops h. Serrated bars e are attached to the plates to retain the ball when being caught.
Patent GB-285960-A (GB)
Title: Improvements in or relating to blowpipe apparatus for cutting metals
IPC: B23K7/00
Filed: 1926-11-22
Abstract: 285,960. Hancock, T. R., and Cuthbertson, J. Nov. 22, 192&. Blowpipe burners.-In a blowpipe apparatus for cutting metals of the kind in which the cutter head is moved over the work as controlled by a trace moving in relation to a template &c., a valve chest having two valve-controlled passages for oxygen connected to a common inlet and, if desired, a passage for gas, is mounted, remote from the cutter head on the tracer member or on the part carrying the tracer member and adjacent thereto, to facilitate adjustment of the valves during operation of the machine. The upper limb 2 of the bifurcated arm 1, 2 of a two-part hinged frame supporting the tracer 17 and cutter head 13, carries a valve chest 4. which is connected to a single oxygen inlet 8 and from which emerge two passages 6, 7 provided with valves 9, 10 and connected by tubes 14, 15 respectively with the mixing chamber 12 and with the inner tube of the cutter head. The gas may be supplied to the mixing chamber either direct or through a passage 5, preferably valved, in the valve chest, and tube 11. The mixing chamber may be arranged either in the cutter head or in the .valve chest. The tubes 11. 14 15 are preferably flexible or provided with flexible connections to the cutter head. Specification 285,959 is referred to.
Patent GB-445866-A (GB)
Title: Improved method of making hollow wire
IPC: B21C37/10
Filed: 1934-10-16
Abstract: 445,866. Drawing hollow wire. STAPLES, H. A., 1000, Myrtle Avenue, Plainfield, New Jersey, U.S.A. Oct. 16, 1934, No. 29594. Drawings to Specification. [Class 83 (iv)] Hollow wire, particularly for use as an electric conductor is formed by bending a flat metal strip into an open seam tube which is then subjected to successive drawing operations without an internal support. The strip has a thickness of between 7¢ to 15 per cent. of the outside diameter of the finished wire. If the wire is of wedge-shaped or other non- circular section the thickness of the strip from which it is formed is the same as that which would be used for a circular wire having a perimeter equal to that of the non-circular wire.