baber/WOPTO huggingface dataset:
Patent GB-970744-A (GB)
Title: Improvements in or relating to the production of sodium sulphate or potassium sulphate
Inventor: RAITT JOHN STEWART
IPC: C01D5/02
Filed: 1962-05-04
Abstract: <PICT:0970744/C1/1> Na2SO4 or K2SO4 is deposited upon particles of a continuously circulating stream when NaCl or KCl and H2SO4 in equivalent quantities are introduced in at least one localized region of the stream at a temperature above 350 DEG  C. and below the MPt of the product Na2SO4 or K2SO4 (MPts of pure Na2SO4, K2SO4 are 884 DEG C., 1076 DEG  C. respectively).  The discrete identity of the circulating particles is maintained during deposition by controlling the ratio of the rate of recirculation to the rate of withdrawal of product, termed the recycle ratio, between the limits 20 : 1 and 1000 : 1. H is preferred to premix, the reactant chloride and H2SO4 to form a solution or slurry which at 20 DEG  C. may contain 60% H2SO4 or at 80-120 DEG  C. up to 70% H2SO4, and to introduce the solution or slurry into a reactor, e.g. a cylindrical rotating drum, within which particles of, for example, NaCl or KCl, Na2SO4 or K2SO4, are internally recirculating at 400-500 DEG  C. The accompanying drawing illustrates apparatus suitable for effecting the process of the invention.  A horizontal cylindrical furnace consists of a rotatable drum 1, closed at one end 2, and containing six lifting buckets 3 to raise particles and transfer them to an externally supported shoot 4, situated inside the drum and inclined downwards from the closed towards the open end of the drum. Into shoot 4 discharges a pipe 5 coming through the open and of the drum, and the furnace is heated by means of external gas burners 6. In a particular example K2SO4 particles of 1-2 mm. diameter are placed within the furnace and the drum is rotated at 20 r.p.m., causing the particles to flow down the shoot at a rate of 125 lbs. per minute.  The temperature of the particles in the shoot is maintained at 460 DEG  C.  A slurry of 3.45 parts 54.5% H2SO4 and 2.74 parts fertilizer grade KCl is added to the shoot through 5, at a rate such as to give 1/2 lb. of product K2SO4 per minute.  This represents a recycle ratio of 250 : 1.  Particles are periodically removed from the recirculating stream and screened, off-size particles being returned to the reactor.  The product which passes a 5 mesh B.S. sieve and is retained by a 12 mesh B.S. sieve analyses as 98.0% K2SO4, 1.3% H2SO4, 0.6% KCl.  In a second example sodium sulphate is deposited at a temperature of 475 DEG  C. Specification 907,900 is referred to.
Patent GB-113080-A (GB)
Title: A Machine for use in connection with the Manufacture of Wire Brushes.
Inventor: CROCKATT WILLIAM
IPC: A46D3/04
Filed: 1917-11-22
Abstract: 113.080. Crockatt, W. Nov. 22, 1917. Brush-making machines. - A machine for making wire brushes, in which the wires are bent to form tufts, and the tufts are passed through from back to front of a perforated metal plate, Fig. 7, which forms the stock, consists of an upper arm b carrying a pivoted balanced operating lever for moving the slide f up and down. The slide f carries at its lower end a plate g which in operarion folds the wires. The wires x are supported un two jaws m, m<2> of which m is fixed &c. m<2> movable. The jaws have horizontal grooves o<1> in the upper surface to gather the wires into tufts and the vertical faces are correspondingly slotted at o so that the tufts are formed when the wires are in the position shown in dotted lines to correspond with the perforations Z in the plate, Fig. 7, which is placed over the jaws. A locking wire is placed in the angle of the tufts, and when the jaws are closed to bring the ends of the wires together, the tufts are forced upwards by the plate operated by a treadle so as to pass through the plate y which is held down by the plate g.
Patent GB-274069-A (GB)
Title: Improved valve mechanism for internal combustion engines
IPC: F01L5/04
Filed: 1927-06-29
Abstract: 274,069. Automobiles Industriels Bovy Soc. Anon. July 6, 1926, [Convention date]. Valves.-Inlet and exhaust passages 15 and 16 respectively are controlled by recesses 17 and 18 formed in semi-cylindrical slide valves 8 and 9 so as to connect the passages 15 and 16 to an annular passage 6 in communication with the combustion chamber. The passage 6 completely surrounds the valves so as to balance the pressures thereon. The valves may be arranged horizontally above the cylinder, instead of at the side as shown.
Patent GB-238068-A (GB)
Title: Improvements in or relating to spool carriers for braiding machines
IPC: D04C3/14
Filed: 1924-07-22
Abstract: 238,068. Chace, J. E. July 22, 1924. Braiding-machines. - Relates to tension let-off arrangements for spool carriers. The lower end of the spool A is received by a rotatable ratchet wheel 6 engaged by a pivoted pawl. 9 urged into operative position by a spring pressed plunger 10. The yarn y is passed under hooks 17, 18 of a slide 16 on a thread guiding standard 12, the arrangement being such that tension on the yarn causes the slide to rise so that an inclined cam surface thereon engages a projecting trip 20 on the pawl 9 to lift it out of engagement with the ratchet wheel. In order to place the yarn under increasing tension as the slide moves upwards and to provide a more positive lowering action thereof a lever 24, engaged at one end with the slide and fulcrummed at the other end, is pressed downwards by a spring- pressed plunger 21 acting through the medium of a lever 22 and link 23.
Patent GB-638548-A (GB)
Title: Improvements in and relating to hammocks
IPC: A61G1/01
Filed: 1948-06-30
Abstract: 638,548. Hammocks ; beds. LEWIS, R. C., CONDER, E. R., LEAMAN, W. H., and MADDEN, A. C. G. June 30, 1948, No. 17522. [Class 52 (ii)] Tubular flaps 7 or the like are secured to a sheet 1 of a normal hammock at a distance apart corresponding to the width of a camp bed frame of known kind. As shown the camp bed frame comprises side members connected together at each side by connecting members 8, 12 and provided with sockets 10 for the usual W-shaped leg members 11. Interrupted parts 9 are provided in the flaps 7 to register with the sockets 10.
Patent GB-383218-A (GB)
Title: Improvements in or relating to spray-carburettors
IPC: F02M7/08
Filed: 1932-06-22
Abstract: 383,218. Spray carburetters. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. June 22, 1932, No. 17607. Convention date, July 31, 1931. [Class 7 (iii).] In a carburetter having an accelerating fuel-pump actuated from the throttle valve positivelv on its suction stroke, and through resilient means on its delivery stroke, means are provided for positively moving the piston after a predetermined movement of the throttle valve against the resilient means has taken place. The pump cylinder e is fed from the float chamber b through an aperture f, and contains a piston h which is actuated positively on the suction stroke by a plate m on a rod k connected to the throttle d. The delivery stroke is effected by a spring n. In order that spraying through nozzle g may take place after a definite throttle opening, a sleeve o is adjustably screwed on the rod k and is adapted to contact with the bottom of the piston. The main nozzle is shown at c.
Patent GB-107921-A (GB)
Title: Improved Process of Cleaning Metal for Painting.
Inventor: WADE HAROLD
IPC: C23G1/08
Filed: 1916-12-07
Abstract: 107,921. Wade, H., (American Chemical Paint Co.). Dec. 7, 1916. Pickling.-Metal, for example steel, to be painted is cleaned by applying to it a strong solution of ortho-, pyro-, or meta-phosphoric acid in water, alcohol, or other solvent and afterwards removing the products of the action by applying a relatively weak solution of phosphoric acid. The weak soiution may be obtained by applying a limited quantity of solvent to the excess of strong acid remaining on the metal.
Patent GB-301770-A (GB)
Title: Improvements in and relating to loom picking mechanisms
IPC: D03D49/24
Filed: 1927-07-02
Abstract: 301,770. Turner & Co., Ltd., S., Turner, S., and Eastaugh, T. July 2, 1927. Picking spindles.-One or both ends of a picking spindle q are mounted in sliding blocks r adjustable by means of screws r<1> and the spindle has an axial bore q<1> with lateral openings q<2> through which lubricant passes from a grease cup &c q'. The spindle may have external longitudinal grooves in place of or in addition to the axial bore.
Patent GB-1526028-A (GB)
Title: Method of and apparatus for steering a cutting means of a mineral mining machine
IPC: E21C35/24
Filed: 1976-04-30
Abstract: 1526028 Guiding mining machines COAL INDUSTRY (PATENTS) Ltd 29 March 1977 [30 April 1976] 17682/76 Heading E1F A method of steering a cutter of a mining machine relative to a rock boundary of a mineral seam comprises sensing an intensity of natural radiation from the rock through a residual layer of the seam, determining from the intensity the thickness of the residual layer, and steering the cutter to maintain the thickness of the residual layer within a preselected range.
Patent GB-440179-A (GB)
Title: Improvements in statistical record cards
IPC: G06K19/02
Filed: 1934-06-21
Abstract: 440,179. Printing - surfaces. CAMPBELL, C., and BRITISH TABULATING MACHINE CO., Ltd., Victoria House, Vernon Place, Southampton Row, London. June 21, 1933, No. 17700. [Class 100 (ii)] [See also Group XIX] A statistical record-card is wholly coated with a composition consisting of one or more inert mineral substances and casein to strengthen the card. A suitable composition consists of casein, china clay, blanc fixe, and satin white. This coating also renders the card more suitable for transfer printing. A reverse printing is effected on the rear face of the card, e.g. by printing against the front with a sheet bearing transfer material at the rear, or by printing with reverse type on the back directly, and this printing may occupy one end or one margin of the card or be placed between the rows of perforations or embossments in the card.
Patent GB-1220984-A (GB)
Title: Two-piece plastics containers and method of making them
IPC: B29C57/12
Filed: 1968-04-11
Abstract: 1,220,984. Plastics containers. LILY CUPS OVERSEAS Ltd. 11 April, 1968 [9 May, 1967], No. 17720/68. Heading B8D. [Also in Division A4] A two-piece foamed plastics container, e.g. a cup, is made by solvent sealing the circumferentially overlapping edges of a plastics sheet 21 comprising high density non-porous unfoamed surfaces and an intermediate foamed lower density layer. A bottom 22, e.g. of high impact polystyrene is solvent sealed to the side wall 21 at 21d, 21e by its flange 22a. The plastics sheet may be foamed polystyrene and the solvent may be 1,1,1-trichloroethane and/or methylene chloride.
Patent GB-172586-A (GB)
Title: Improvements in or relating to collapsible barrels
IPC: B65D25/20
Filed: 1921-06-29
Abstract: 172,586. McCreery, W. H. June 29, 1921. Collapsable barrels.-A collapsable barrel comprises a pair of stave sections 1, Fig. 1, each provided with two longitudinal metal edgings, one of which is folded to form a socket to take the male edging on the other stave-section, as shown in Fig. 4. Each section has two hoop sections 10 secured to it by flanges 11, each hoop section being furnished at its ends with male and female connections adapted to engage those of the corresponding hoop part on the other barrel section. To form the male connections the material is folded over a threaded nut 15, Fig. 6, into which, when the hoop parts are fitted together, a bolt 20, Fig. 4, is passed to mainta,in them in engagement. The dished heads 21 have channelshaped edgings 22, Fig. 9, by means of which they are bolted to the sections. Strengthening strips 25 are arranged inside and longitudinally of each barrel section, passing to the outside of the barrel and terminating under the metal edgings 22.
Patent GB-288862-A (GB)
Title: Improvements in, and relating to, the pneumatic conveyance of coal and other materials
IPC: B65G53/62
Filed: 1927-07-04
Abstract: 288,862. Dorman, Long, & Co., Ltd., and Kirby, M. R. July 4, 1927. Pneumatic conveyers. - In the pneumatic conveyance of coal, &c. free dust is collected, quenched and removed periodically in a condition of slurry. Water is supplied to an ejector i by a centrifugal pump l which draws water from a storage tank n through a pipe m. The ejector i is connected by a pipe j to the dust filters e, and by a pipe p having valve-controlled branches a, q to a pair of settling tanks r, r for the quenched dust. These tanks are connected by pipes s, s to the tank n. When the pump is actuated, the suction set up by the ejector draws coal from the working face through the pipe f. The bulk coal collects in the receptacle d, but the major portion of the dust passes on and settles in the filters e, e. The free dust is drawn into the ejector i where it is drenched with water and made into a slurry which is discharged into the tanks r, r. The slurry is periodically removed from the tanks and dried for use as fuel.
Patent GB-185561-A (GB)
Title: Improvements in or relating to fly and cast cases
IPC: A01K97/06
Filed: 1921-07-02
Abstract: 185,561. Lamont, J. W. F. July 2, 1921. Tackle cases.-The lid of a compartment of a tackle case is provided with an indentation adapted to house tweezers or the like tool, which is held in position by a clip_ fixed to a part of the case. In one form, a tackle case consists of two sections a, b, hinged at c for folding together and comprises a compartment d, having a hinged lid d' for flies, fly-drying chambers e, a damping- compartment f having a hinged lid f<l>, and a compartment h, having a lid h<1>, for drying casts. The lid h<1> is provided with an indentation i to house tweezers j, held in position by a spring clip k, secured to a division plate and extending through a casing n and an opening in the lid h<1>, the tweezers j acting as a fastener for the lid h'..
Patent GB-204757-A (GB)
Title: Improvements in or relating to the vulcanisation of rubber and similar materials
IPC: C08K5/00
Filed: 1922-06-30
Abstract: 204,757. Dunlop Rubber Co., Ltd., Twiss, D. F., and Thomas, F. June 30, 1922. Vulcanizing compositions. - Zinc or cadmium propyl xanthate or one of the alkyl series, namely, methyl, ethyl, butyl, amyl, is added to rubber mixings which are subsequently vulcanized at a temperature of 60-130‹ C. whereby over vulcanization is prevented however long the heating may be continued. According to an example, 51“ parts of rubber, 5 parts of sulphur, 20 parts of zinc oxide, 1 part of magnesia, 18 parts of gas black, 3 parts of paraffin wax, and 1¥ parts of zinc propyl xanthate heated for 20 minutes at 98‹ gives a product having a coefficient of vulcanization of about 3, which remains the same after a further 2¢ hours' heating. Reference has been directed by the Comptroller to Specification 177,493, as open to inspection under Sect. 91 (3) (a) of the Act.
Patent GB-1370597-A (GB)
Title: Cartridge locking mechanism with adjustable tension means
IPC: G11B15/675
Filed: 1973-04-13
Abstract: 1370597 Tape cartridge players; cartridge locking mechanisms MOTOROLA Inc 13 April 1973 [12 May 1972] 18013/73 Heading G5R A cartridge locking mechanism comprises an arm 44 pivoted at 58 and carrying a cartridgelocking roller 56 and a cartridge-engaging leaf spring 68, the arm 44 being subject to an overcentre spring arrangement 66 which causes the roller 56 to engage the cartridge 14, eventually locating in a notch 18, as the spring 68 is engaged by cartridge side wall 21 upon cartridge insertion. The spring 76 is mounted in compression on two interengaging pins 65, 84, the end 77 of pin 65 being pivoted to the arm 44 and the end 88 of pin 84 being engaged in a notched mounting post 92, the pin 65 having a threaded portion 78 on to which the spring 76 is screwed, enabling the spring compression to be adjusted.
Patent GB-856761-A (GB)
Title: Improvements in or relating to skips for guided skip hoists
IPC: B66B17/08
Filed: 1958-06-05
Abstract: 856,761. Operating the doors of skips in skip hoists. PREPARATION INDUSTRIELLE DES COMBUSTIBLES. June 5,1958 [Dec. 24, 1957], No. 18032/58. Addition to 799,523. Class 78 (4). An oleo-pneumatic reservoir 9 supplying liquid for opening the door of the skip of the parent Specification is maintained under pressure so that, without the use of a spring, the liquid in the reservoir raises the pumping piston 8 when the skip is lowered to a position in which the balancing cable exerts little pull on the piston. The balancing cable is preferably connected directly to the piston 8. The reservoir is connected through a non- return valve 10 to the pumping piston which delivers liquid to the ram 5 opening the door 1 under the control of the valve 11.
Patent GB-1369888-A (GB)
Title: Substituted amidines
IPC: C07D521/00
Filed: 1972-04-19
Abstract: 1369888 1-Carboxamidinopyrazole derivatives FUVEAU SA 19 April 1972 [30 April 1971 8 March 1972] 18086/72 Heading C2C Novel compounds of Formula I wherein R is H or C 1-4  alkyl and R 1  is H, alkyl or aralkyl and acid addition salts thereof are prepared by condensation of the compounds of formulµ in the presence of HCl or HI and free base is optionally liberated by ammonia. Pharmaceutical compositions in conventional forms for oral, rectal or parenteral administration and having analgesic and anti-inflammatory activity comprise an above novel compound and a carrier or diluent.
Patent GB-1465572-A (GB)
Title: Aqueous emulsifier-free dispersions of polyurethane amides and their application
IPC: C08G18/10
Filed: 1974-04-25
Abstract: 1465572 Aqueous polyurethane dispersions BAYER AG 25 April 1974 [25 April 1973] 18131/74 Heading C3R An emulsifier-free non-ionic aqueous polyurethane dispersion contains as the polyurethane a reaction product of an organic diisocyanate with a difunctional active hydrogen-containing compound which is free from side chain polyoxyethylene units and comprises 5 to 100% by weight of polyamides or polyester amides, the ratio of ester groups to amide groups in the case of a polyesteramide being not more than 15 : 1, the polyurethane being prepared in the presence of (i) a difunctional active hydrogen-containing compound which contains side chain polyoxyethylene units and/or (ii) an organic diisocyanate which contains side chain polyoxyethylene units. The dispersion may be prepared first by preparing the polyurethane anhydrously followed by dispersion in water, but more preferably by a prepolymer process, the second stage of chain-lengthening the prepolymer being carried out in the presence of water. Suitable compounds (i) are reaction products of ethoxylated monohydric alcohols, phenols or secondary amines with excess of a diisocyanate, which reaction products have been reacted with a dialkanolamine. The compounds (ii) may be reaction products of ethoxylated monohydric alcohols or phenols with two moles of a diisocyanate, the urethane first being formed which reacts with a second mole of the diisocyanate at a higher temperature to form the allophanate diisocyanate, or the ethoxylated alcohol or phenol may first be converted into a secondary amine by reaction with an N-substituted ethylene imine or a primary amine and the secondary amine formed into the corresponding biuret diisocyanate by reaction with at least two moles of a diisocyanate. Preferably the polyamide is obtained by reacting a dicarboxylic acid dialkyl ester with an excess of a difunctional primary diamine, and has a M.W. of 500 to 2000. The dispersions are particularly useful as leather finishes.
Patent GB-1269386-A (GB)
Title: A d.c. energised timing motor
IPC: H02K29/00
Filed: 1969-04-09
Abstract: 1, 269, 386. Clocks and watches. ARMEC CORP. April 9, 1969 [April 17, 1968; Sept. 30, 1968], No.18139/69. Heading G3T. In a D. C. timing motor for a clock or watch, and including an electromagnetically driven rotor 18, a stator 11, a motor winding 16, a D.C. source 26, and a mechanical resonator 20, an electromagnetic system, including pick-up coils 23a-d co-operating with magnets 22a-d carried by the resonator 20 supplies signals to an amplifier circuit for the pulse energization of the motor winding 16, the rotor 18 and the resonator 20 are coupled magnetically to excite the resonator into resonance when the motor turns at a desired speed and to maintain the rotor speed constant, and the pick-up coils are isolated from the rotor 18 to preclude operation of the motor by rotor induced signals. The resonator 20 is cruciform, each pair of diametrically opposed arms oscillating in a direction opposite to the other such pair. The magnetic coupling between the rotor 18 and the resonator 20, is provided by magnets 19 on the rotor co-operating with magnets 22a<SP>1</SP> (not shown), 22b<SP>1</SP>, 22c<SP>1</SP>, 22d<SP>1</SP> on the resonator. The amplifier circuit comprises transistors 35, 36 in series with the motor coil 16, the transistor 35 receiving signals from a pick-up coil 32a associated with the rotor magnets 19, and the transistor 36 receiving signals from the pick-up coils 23a-d. A bias resistor 37 renders the motor self-starting. The cruciform resonator 20 may be replaced by a tuning fork or a balance wheel.
Patent GB-813023-A (GB)
Title: Adjustable reclining chairs or like articles of furniture
IPC: A47C1/0355
Filed: 1957-06-07
Abstract: 813,023. Seats. SCHLIEPHACKE, F. June 7, 1957 [June 8, 1956], No. 18189/57. Class 52(2) A foot rest is connected with the back and seat of a reclining chair by a linkage including a pair of crossed links 64, 76 (Fig. 2) the link 76 being pivoted to the seat and having a slot 82 in its free end while the link 64 is pivoted at one end to the foot rest and is connected at the other end to a lever 44 pivoted at 46 to the chair frame and caused to move by the tilting of the back and seat, and a third link 74 pivoted to the foot rest and carrying a pin 84 sliding in the slot 82. As shown in Fig. 2 the lever takes the form of a plate 44 which is linked to the seat and back of the reclining chair. A link 90 is pivoted to the pin 84 and the link 64. When the seat and back form a single unit (Fig. 6) the chair tilts about links 120 and 110, the latter being connected to the lever which takes the form of a cranked link 128 pivoted to the chair frame at 130. The leg rest is connected to the seat unit as before and a back stop 124 is provided. Preferably the link 64 carries a filler plate 70, occupying the space between the seat and foot rest when the foot rest is extended.
Patent GB-405001-A (GB)
Title: Improvements in methods and apparatus for testing extensible threads
IPC: G01N3/08
Filed: 1932-06-28
Abstract: 405,001. Testing extensible threads. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, LEE, R. F., and BLOXHAM, A. R., Fort Dunlop, Birmingham. June 28, 1932, No. 18220. [Class 120 (iii).] In a continuous process for testing the tensile strength of vulcanised rubber threads a number of spaced threads 1 are collectively subjected to the same degree of extension. The threads pass through a spacing comb 2 and are then stretched between pairs of rollers 3, 4 and 5, 6, the threads after extension being deposited in a slack condition upon a surface 7 moving at a speed not greater than that of the rollers 3, 4. Broken threads are diverted on to a second conveyer 10. The rollers are preferably rubber coated and the pairs may be pressed together by springs or by fluid pressure. The rollers are suitably driven through belts, chains, pulleys or gearing, the pair 5, 6 being driven faster than the pair 3, 4 to produce the necessary extension. The conveyer 7 is supported on metal rollers 8, 9 which serve to conduct away any charges of electricity. The Provisional Specification describes also an arrangement in which the conveyer 7 is vibrated or air jets are directed on to the threads to free them from the conveyer surface.