baber/WOPTO huggingface dataset:
Patent GB-186661-A (GB)
Title: Improved method of and means for measuring the rate of and total feed or passage of granular materials
IPC: F23H11/00
Filed: 1921-06-04
Abstract: 186,661. Lea, J. E. June 4, 1921. Indicating feed of granular materials. - A method of and means for electrically measuring the rate of feed and for the total feed of granular material delivered through an orifice by an endless conveyer or reciprocating ram as in a mechanical stoker consists in indicating on an ammeter or the like the current generated by a permanent magnetic field dynamo driven by the conveyer and having in the circuit a resistance controlled by a contact member operatively connected to the orifice regulator. As shown in Fig. 1 the driving shaft c of the chair grate a drives the dynamo b in the circuit of which is arranged an ammeter e, graduated to read cubic feet or other unit of measurement, and a variable resistance g with which co-operates a contact member i directly connected to the fire door h. The resistance comprises coils of varying length or of varying cross-sectional area and graduated so that the resultant current is proportional to the movement of the fire door. To record the rate of feed a recording instrument t may be arranged in parallel with the ammeter e and to indicate the total quantity delivered a revolutions counter u with integrating-mechanism may be provided. In a modification, the resistance g is uniform and the contact member receives a variable movement by means of a cam-groove on a cylinder rotated by a rack and pinion associated with the fire door; the cam-groove is a curve which represents the ratio of current output to resistance for successive movements of the fire door.
Patent GB-1408548-A (GB)
Title: Explosive incendiary projectile
IPC: F42B12/08
Filed: 1974-04-08
Abstract: 1408548 Armour-piercing; explosive incendiary projectiles DIEHL 8 April 1974 [11 May 1973] 15512/74 Heading F3A A projectile comprises an explosive incendiary charge 10 and a sub-calibre armourpiercing core 2 that is connected to a fullcalibre tail part 5 by a part defining a predetermined breaking place. Upon firing, the tail part acts as a drive part, and, upon the impact of the projectile, drives the sub-calibre core into the armour plate of the target, after which the tail part upon striking the armour plate can tear off at the predetermined breaking place and be divested in front of the armour plate. A ballistic cap 7 is secured by a screw thread or recessing 6 which forms the predetermined breaking place. An impact-ignitable incendiary charge 9 and a soft iron cap 8 are contained within the ballistic cap. A fuze 11 is provided for detonating the charge 10 inside the target, but, if the projectile strikes very thick armour plate which is not fully perforated by the subcalibre core, the fuze detonates the charge 10 outside the target and this drives the core fully in whilst blasting the tail part 5 and the fuze 11 rearwards. If the projectile strikes thin armour plate the tail part is not torn off and divested in front of the armour plate.
Patent GB-770256-A (GB)
Title: Improvements relating to a process for the recovery of finely divided material
IPC: B04B1/12
Filed: 1955-05-31
Abstract: A dispersed clay slurry is fractionated to form a settled portion and a supernatant portion, and the supernatant portion is flocculated and is centrifuged into a watery phase and a mainly solids phase, a dispersing agent being added to deflocculate the solids phase immediately before discharge from the centrifuge. The dispersing agent has a S.G. of 1.19 or more, or is mixed with a weighting material.  Examples of the dispersing agent are: Sodium hexametaphosphate, tetrasodium pyrophosphate, sodium tetrapyrophosphate, sodium silicate, disodium phosphate, tetrapotassium pyrophosphate, potassium tripolyphosphate, caustic soda, sodium carbonate, humic acid.
Patent GB-956391-A (GB)
Title: Boron compounds and their preparation
Inventor: KNOTH WALTER HENRY
IPC: C07F5/00
Filed: 1961-04-28
Abstract: The invention comprises compounds of the formula Xy(B10H10)z.(H2O)p, where X is hydrogen or a metal ion, y is 2 when the valence of X is 1 or other odd number and is 1 when the valence of X is 2 or other even number, z is equal to  y times the valence of X/2  and p is from 0 to 3.  The acid H2++B10H10-. (H2O)n, where n = 2 or 3 is prepared by contacting an aqueous solution of an amine or ammonium salt having the formula (R3NH)2 B10H10, where R is hydrogen or alkyl, with a strongly acidic cation exchange resin.  Metal salts of this acid are formed (a) by neutralizing an aqueous solution of the acid with an aqueous dispersion of an inorganic base containing a metal cation; (b) by mixing a metal salt solution with a solution of the acid or a salt thereof in order to precipitate the desired metal salt; or (c) by reacting a decaboryl bis-(alkyl sulphide) with an inorganic base. Amine or ammonium salts of the B10H10 anion may be prepared according to Specifications 956,392 or 956,393.  The decaboryl bis(alkyl sulphide) used is formed by reaction of decaborane with a dialkyl sulphide.  Examples describe the preparation of the acid and the salts Na2B10H10, BaB10H10, Ag2B10H10, Cs2B10H10, ZnB10H10, and CsCuB10H10.  The compounds are useful as intermediates in the formation of dyes and as high energy fuels, being ignited by contact with concentrated nitric acid or phosphorus pentoxide. The silver salt may be used in photographic processes and the acid as a polymerization initiator.ALSO:Isobutylene is polymerized at room temperature under a pressure of 1-3 atmospheres or more, using as an initiator the boron-containing acid H2+ +(B10H10)-. (H2O)n where n is 2 or 3 (see Division Cl).ALSO:Polyacrylonitrile, nylon or cellulose acetate fibre is dyed red with a solution formed by adding concentrated nitric acid to a solution of the boron-containing acid H2++ (B10H10)-.  (H2O)3 or a salt of this acid (see Division C1).
Patent GB-308119-A (GB)
Title: Improvements in the production of non-splinterable or safety glass
IPC: B32B17/08
Filed: 1928-05-29
Abstract: 308,119. Thornton, J. E. May 20, 1928. Compound transparent sheets; ornamental plates. -A non-splintering transparent sheet is made by joining two compound sheets each consisting of a sheet of glass A, a thin, strongly adherent substratum B made from a dilute solution of gelatine with the addition of a minute quantity of chrome alum or of a bichromate salt and if desired of acetic acid, and a thicker reinforcing layer of glue &c. C. The sheets are united with the reinforcing layers together by heat and pressure. The reinforcing layer may consist of the following parts by weight: soft clear gelatine 25, sugar syrup or glycerine 5, glacial acetic acid 1, water 100, carbolic acid “, chrome alum 1, alcohol 5. The gelatine is allowed to swell in cold water and, having added the sugar &c., the whole is dissolved by gentle heat; the carbolic acid and chrome alum are then added and a small percentage of saponin preferably. The colloidal coatings are applied by any suitable means such as a slotted tube or photographic plate-coating apparatus, and when thicker than 0.005 inch they are preferably built up of several thin layers separately dried. The sugar &c. may be applied as a sprayed solution to one or both reinforcing sheets before pressing and omitted from the solution. The glass may be roughened by sodium silicate solution or hydrofluoric acid &c. to secure better adhesion of the substratum. The edges of the finished sheet may be sealed by dipping in a solution of cellulose and gelatine in acetic acid and acetone. Dyes or colours, designs, &c. may be applied to the substratum or reinforcing layer.
Patent GB-1349380-A (GB)
Title: Ring twisting
IPC: D01H1/36
Filed: 1971-05-18
Abstract: 1349380 Packages E I DU PONT DE NEMOURS & CO 18 May 1971 [18 May 1970] 15617/71 Heading B8M [Also in Division D1] A ring spun package has cross windings at its ends and substantially parallel coils of windings in its central portion. These two types of windings are produced by tilting the ring rail at the ends of its stroke.
Patent GB-1309595-A (GB)
Title: Bearing
IPC: F16C33/00
Filed: 1970-04-02
Abstract: 1309595 Bearings; lubricating PHILIPS GLOEILAMPENFABRIEKEN NV 2 April 1970 [5 April 1969] 15721/70 Heading F2A A bearing, having a shaft 1 and bush 2 rotatable relative to one another, is lubricated from a reservoir 7 provided in the rotatable bearing element, the lubricant being forced in a direction away from the shaft by centrifugal action, the radially inner portion of the reservoir being in communication with the atmosphere, to maintain the reservoir at atmospheric pressure. Either the shaft or bush may be the rotating bearing element. The communication with the atmosphere may be provided by an opening 9 in the end walls of the reservoir or a pipe (n) may be provided (Fig. 6, not shown). Pumping grooves (20) Figs. 2 and 3, not shown) may be provided to assist lubrication.
Patent GB-612474-A (GB)
Title: Improvements in and relating to wide aperture objectives
IPC: G02B13/00
Filed: 1946-05-24
Abstract: 612,474. Optical objectives. ROSS, Ltd., and COOK, G. H. May 24, 1946, No. 15836. [Class 97 (i)] In an objective of the type shown comprising two simple positive components enclosing two meniscus doublets concave to a central diaphragm the doublets comprise negative and positive meniscus lenses cemented together and (a) all six lenses have refractive indices greater than 1.65 ; (b) the refractive index difference at cemented surfaces in not greater than 0.04 ; (c) the AbbÚ-V values for the outer positive components are greater than 53 and in the doublets the positive lenses have a greater V value than the corresponding negative lenses; (d) the focal length of one of the positive components is between F and 2F and that of the other between .5F and 1.5F where F is the focal length of the whole system; (e) the focal length of one negative component is between 1.5F and 2.5F, while that of the other is greater than 2F. Numerical data for one example are given. Specification 507,590 is referred to.
Patent GB-583218-A (GB)
Title: Improvements in or relating to fire extinguishing foam compositions
IPC: A62D1/02
Filed: 1942-11-10
Abstract: 583,218. Fire - extinguishing. SCHACKLETON, L. R. B. Nov. 10, 1942, No. 15861. [Class 47 (ii)] Fire-extinguishing foam is hardened and stabilised by adding to the water and foaming agent a low concentration of soluble syntheticresin forming constituents which react at relatively low temperature to give a non- inflammable thermosetting product, such as resorcinol, pyrogallol, furfural or phenol with an aldehyde such as formaldehyde, but preferably reagents yielding urea-formaldehyde resin, ammonium thiocyanate being used as a catalyst ; foaming agents include soap, glue, casein, hydrolysed blood or such compositions as the triethanolamine salt of a sulphonated coconut oil containing above 50 per cent of lauric acid. The true resin-forming constituents may be made up respectively and stored with the two solutions containing the catalyst and the foaming agent or by adjusting the pH value one of the stored mixtures may contain both resin-forming constituents, another reagent being added at the time of use to bring the pH to a valve at which resin formation and hardening proceeds.
Patent GB-662633-A (GB)
Title: Improvements in and relating to urea formaldehyde compositions
Inventor: HAPPE WALDEMAR ROBERT JOHANNES
IPC: C08L61/24
Filed: 1947-06-17
Abstract: Urea-formaldehyde castings are obtained by adding to a preformed urea-formaldehyde condensate an aqueous solution containing an acid setting agent, an albumen, and free urea, casting the mixture in a mould of the desired pattern until it sets sufficiently to be removed therefrom and allowing or assisting the cast product to harden. Albumens specified are glues, blood or egg albumen, gelatine; sulphuric, lactic, citric, tartaric, oxalic, hydrochloric, salicylic, acetic acids and aluminium chloride or sulphate may be used to set the resin.  30 c.cs. of a 60 per cent urea-formaldehyde condensate are mixed in a mould with 5 c.cs. melted glue (50 per cent water), 8 gs. urea, 3 c.cs. 25 per cent phosphoric acid, and 2-3 gs. aluminium chloride.  The cast product may be hardened at 40-80 DEG  C. in a bath containing alum solution.
Patent GB-1203042-A (GB)
Title: Improvements in or relating to apparatus for controlling the unwinding of web
Inventor: BUTLER RICHARD ALBERT JR
IPC: B65H20/24
Filed: 1967-08-30
Abstract: 1,203,042. Feeding webs. R. A. BUTLER. 30 Aug., 1967 [2 Sept., 1966], No. 16002/70. Divided out of 1,203,041. Heading B8R. The subject-matter of this Specification is the same as that described in Specification 1,203,041, but the claims are concerned with the dancer roller control of the web supply-roll brake.
Patent GB-1300542-A (GB)
Title: Smokeless propellant composition
Inventor: FRANKEL MILTON BERNARD
IPC: C06B43/00
Filed: 1968-04-03
Abstract: 1300542 Tetrakis-trinitroethyl orthocarbonate NORTH AMERICAN ROCKWELL CORP 3 April 1968 [5 April 1967] 16050/68 Heading C2C [Also in Division C1] Tetrakis-trinitroethyl orthocarbonate for use as an oxidizer in a smokeless rocket propellant composition (see Division C1) is prepared by refluxing a solution of trinitroethanol in carbon tetrachloride in the presence of anhydrous ferric chloride catalyst.
Patent GB-1035782-A (GB)
Title: Espalier stake and method of manufacturing the same
IPC: A01G17/14
Filed: 1963-04-23
Abstract: 1,035,782. Making posts; angular bending; bending cutters. VEREINIGTE OSTERREICHISCHE EISEN-UND STAHLWERKE A.G. April 23, 1963 [April 25, 1962], No. 16051/63. Headings B3A, B3E and B3W. [Also in Division A1] An espalier stake having an open cross-section e.g. of channel or Z-shape, is made from a flat steel strip, the marginal zones b of which are given a wave-shaped profile using a rolling machine. The zones b are then passed through apparatus comprising upper and lower rolls 19, 20, the upper roll 19 having peripherally spaced cutting cams 21 which form parallel cuts in the zones b and also force the portions defined by the cuts out of the plane of the strip. The cams 21 have a trough-shaped profile 21<SP>1</SP> between the two cutting edges so that the loops 5 forced out of the strip have a similar profile. The marginal zones are turned up to form a stake of channel or Z-section. In a modification a stake of Z-section is formed from metal strip the marginal zones of which are given a wavy-profile and which is then twisted to Z-section. Loops 5 are formed in the marginal zones by passing the stake through apparatus comprising two upper and two lower rolls, one upper roll and the diagonally opposite lower roll having cutting cams 21.
Patent GB-245360-A (GB)
Title: Bathing tubs
IPC: A47K3/02
Filed: 1925-06-22
Abstract: 245,360. Becker, M. M. June 22, 1925. No Patent granted (Sealing fee not paid). Baths.-Two hollows a, b separated by a ridge c are provided for use as a hip-bath and foot-bath respectively. The hollow a is above the level of the hollow b, and may be covered by a seat i supported at the sides. A waste outlet d is provided.
Patent GB-116216-A (GB)
Title: Improvements in connection wtih the Knee-joints of Artificial Legs.
Inventor: ERNST EMIL
IPC: A61F2/64
Filed: 1917-11-03
Abstract: 116,216. Ernst, E., and Tulett, A. Nov. 3, 1917. Limbs, artificial. -A means for deadening the noise of impact of the knee-joint members of legs comprises a curved strut D fixed across the tibial member B, projecting thereabove at the knee, and carrying sounddeadening material D<4> which engages similar material A<3> secured to an interior abutment A<2> of the thigh member A. The strut may be connected by a guide-link D<5> to a tube D<6> surrounding the knee pivot C. In a modification, Fig. 4, the strut D carries spaced blocks of sound-deadening material D<4> which engage either side of a projection a<2>.
Patent GB-898736-A (GB)
Title: Process for the manufacture of propionitrile
Filed: 1959-05-12
Abstract: Mixed sulphides of formulae: 2NiS.WS2, NiS.MoS2 and CoS.MoS2, for use as hydrogenating catalysts, are obtained by passing hydrogen sulphide through nickel or cobalt molybdates or tungstates and removing surplus hydrogen sulphide by treating the product with a stream of hydrogen at normal or increased pressure and at temperatures of 400 DEG  to 500 DEG C.  The sulphides may be admixed with activated alumina.ALSO:Propionitrile is prepared by the catalytic hydrogenation of acrylonitrile at elevated temperatures and pressures in the presence of a catalyst consisting of or containing as the active component sulphides of the metals of the 6th and 8th Groups of the Periodic System.  Specified catalysts are WS2, MoS2, 2NiS.WS2, NiS, MoS2 and CoSMoS2, with or without carriers such as activated alumina. The reaction may be conducted in the presence of diluents such as aliphatic or cycloaliphatic hydrocarbons or alcohols and stabilizers such as hydroquinone.  The process is particularly suitable for continuous working.
Patent GB-1425998-A (GB)
Title: Handling machine
IPC: B21D43/18
Filed: 1973-04-05
Abstract: 1425998 Reciprocating transfer devices SOC CMV 5 April 1973 [5 April 1972] 16281/73 Headings B8H and B8A A machine for transferring objects 1, e.g. car door windows from a finishing machine (phantom lines) to a conveyer (not shown) comprises an arm 15 which is rotatable in a horizontal plate and which has object holding means 18 at one end, the arm 15 being pivotally mounted at its other end at 13 on a slide 12 which has rollers 11 which move along a track structure 10, the rotational movement of the arm 15 being effected by means of a crank arm 4 which is coupled to the arm 15 by means of a crank-pin 22 and driven by a rotatable drive shaft 3 such that the object holding means 18 describes a path of distorted elliptical shape shown in Fig. 2 (not shown), owing to the reciprocatory movement of the slide 12 in the track structure 10. The amplitude of the path of movement of the object holding means 18 may be altered by varying the position of the crank-pin 22 relative to the arm 15 and crank arm 4. The drive shaft 3 is coupled by a shaft 5 to the drive system of a horizontal rotatable machine table of the finishing machine on which the objects are treated, the shaft 3 rotating at twice the speed of the machine table such that during one full revolution of the shaft 3 the table makes half a turn to carry out the finishing operation. The object holding means 18 are in the form of a suction cup 19 which is movable in a vertical direction relative to the arm 15 by means of a pneumatic control jack 20. In order to ensure that an object 1 maintains a fixed orientation in space during its transfer from the finishing machine to the conveyer an articulated parallelogram system 24 is provided comprising a rigid rod 25 articulated at one end to an arm (26) integral with the slide 12 and at the other end to an arm (27) of length equal to the arm (26) and integral with the body of the object holding means 18, Fig. 2 (not shown). The arm (26, 27) may have different lengths to enable the orientation of the object to be varied during transfer thereof.
Patent GB-661728-A (GB)
Title: Improvements relating to tap wrenches
IPC: B23G1/26
Filed: 1949-06-20
Abstract: 661,728. Wrenches. BATES, F. J., and SCOTT, R. July 18, 1950 [June 20, 1949], No. 16286/49. Class 61(iii). In a tap wrench having a head 1 provided with a central opening 2, a sliding jaw 11, and handles 5, 16, the head 12 of the spring retracted jaw 11 is a close fit in the hollow end of the handle 16 and takes the greater part of the levering strain. The end of the handle is in threaded engagement with external threads on the boss 6 and actuates the sliding jaw 8 which is retracted by a coil spring 13 positioned between the head 12 and outer end of the boss. The jaw is guided against turning in the head 1 by a peg 9 and slot 10.
Patent GB-227054-A (GB)
Title: Improvements in and relating to swings
IPC: A47D13/10
Filed: 1924-07-08
Abstract: 227,054. Dobos, R. July 8, 1924. Swings.-In a swing of the type comprising a fabric bag b with apertures b<3> for the legs of the child and having adjustable suspending-means d, a foot-rest k, which may be adjustable is provided. A frame a supports the bag b, the back of which may consist of two layers for the insertion of a cushion. Helical springs f support the swing, and the frame a may be made of separate parts so that the swing can be folded up.
Patent GB-124153-A (GB)
Title: Improvements relating to Lamps for Cycles Vehicles and the like.
Inventor: HOLLANDER ELIAS PINKUS
IPC: F21S13/00
Filed: 1918-10-09
Abstract: 124,153. Hollander, E. P. Oct. 9, 1918. Reservoirs, attaching to lanterns.-The reservoir of a cycle, motor-car, or other lamp is detachably secured to the lower end of the body by a lever on the lamp body or reservoir engaging a lip or projection on the reservoir or body, the lever being locked by a pivoted arm on it engaging a retaining-device. In one form, the reservoir 1 has at one side an outwardly projecting tongue or lug engaging within a slot in the side of the loop body 3, and at the other side an upstanding arm 6 with a bent lip or flange 7, which engages between projecting-ears 8 on the body 3. A lever 9 pivoted between the ears 8 is provided with a bent arm 10 which, when the lever is depressed, engages beneath the lip 7 and forces the reservoir tightly against the end of the lamp body. The lever is retained in the locking-position by a pivoted spring arm 12 thereon moved laterally to engage a bayonet-slot formed in the bent lower end of the arm 6.
Patent GB-1380743-A (GB)
Title: Crane overload safety device
IPC: B66C23/90
Filed: 1972-04-10
Abstract: 1380743 Strain gauges LEO GOTTWALD K G 10 April 1972 [21 April 1971] 16445/72 Addition to 1364323 Heading G1M [Also in Division B8] The tension rod 32 of the strain gauge in the crane safety device (see Group B8) of the parent Specification 1364323 is mounted by sets of links 21, 22 and 23, 24 to allow the device to function independently of temperature changes. A lever 17, pivoted at 16, transmits the movement in the rod 32 to a sensing unit of the safety device by way of a cable 15. The rod 32 is pre-stressed as in the parent case and an adjustment screw 34 is provided, the links 23, 24 also being adjustable.
Patent GB-351204-A (GB)
Title: Improvements in loud speakers and like apparatus
IPC: H04R9/06
Filed: 1930-05-28
Abstract: 351,204. Loud-speakers. AGATE, C. S., 33, Dornton Road, South Croydon, and CHARMAN, F. J. H., 50, Roseberry Gardens, Harringay, London. May 28, 1930, No. 16485. [Class 40 (iv).] In order to prevent magnetic particles fouling the air-gap of a moving- coil loud-speaker or other instrument, the air gap is completely enclosed by non-magnetic shields g, h extending across the gap, other means f being provided for centering and supporting the coil c or diaphragm e. The ring g may be of rigid or semirigid non-magnetic material and the shield h of flexible material, e.g. rubber. To prevent undue elastic restraint on the diaphragm by the air enclosed in the cavity between the shields and the poles, air passages may be provided in the shields or in the polepieces.
Patent GB-624810-A (GB)
Title: Improvements in or relating to internal combustion engines operating on the four-stroke cycle with compression ignition
IPC: F02B33/00
Filed: 1947-06-23
Abstract: 624,810. Four-stroke engines. RICARDO, H. R. June 23, 1947, No. 16500. [Classes 7 (ii). and 7 (vi)] In a compression-ignition four-stroke engine in which a pump cylinder C2 is arranged between a pair of working cylinders C, C<SP>1</SP> having inlet and exhaust poppet valves H<SP>1</SP>, H3, the valves H<SP>1</SP> also acting as delivery valves for the pump cylinder, and the pistons being connected to cranks angularly disposed at 180 degrees the pump inlet valve comprises a sliding sleeve valve D<SP>4</SP> open internally to the atmosphere and reciprocated by a bell-crank from an eccentric on the cam shaft E. The displacement of the pump piston is between 1.5 and 2.5 that of either working piston, and the combustion chamber is constructed as described in Specifications 431,345, 439,426 and 457,491.