baber/WOPTO huggingface dataset:
Patent GB-461381-A (GB)
Title: Improvements in or relating to apparatus for controlling or indicating liquid levels
IPC: G01C13/00
Filed: 1936-01-25
Abstract: 461,381. Ball - and - float valves. ATELIERS NEYRET - BEYLIER & PICCARD - PICTET. Jan. 25, 1936, No. 2412. Convention date, May 14, 1935. [Class 135] [Also in Groups XVIII and XXI] A float F, Fig. 2, carried by a pivoted arm B<1> is limited by two cylindrical walls C<1>, C<2> so that liquid pressure on these walls has no turning moment, and by a bottom surface A the plane of which passes through the axis C, the latter surface providing the only turning moment on the float. An opposing turning moment is exerted by a counterweight P so treated that the centre of gravity of the structure is on a point G on a plane at right angles to the plane X. The apparatus is so constructed that the opposed moments are equal, i.e. the float is in neutral equilibrium when the liquid level passes through O. If the level rises slightly, the float rises until the surface A reaches liquid level. Conversely, on a fall of level, the float falls throughout its permitted range, i.e. until a supplementary float f reaches the liquid level. In a modification, Fig. 3 (not shown), the counterweight P is wholly immersed, and in Fig. 4 (not shown), the counterweight is replaced by a spiral spring. In another modification, Fig. 5 (not shown), the curved walls C<1>, C<2> are prolonged below the bottom wall A, so that the float can rise until the wall A is above liquid level. In another modification, Fig. 6 (not shown), the critical liquid level is not that of the axis, an additional counterweight with fixed leverage being employed. If the counterweight is made adjustable, the critical level may be varied. If the arm B<2>, Fig. 2, does not pass through the point O and the weight P is adjustable along it, the apparatus has a different position of equilibrium for each position of the weight P, and may be used for indications or actuations depending on levels. In effect, a magnified indication of change of level is given. In Fig. 8, the closed portion F of a drum serves as the float and liquid is admitted through opening b to act upon the radial surface C<12>. If the opening b is small, oscillations due to changes of level are damped. Alternatively, damping may be obtained by a blade projecting from the float into the liquid. In Fig. 14 (not shown), a tank discharges through an orifice, and constant delivery is obtained by a float in the tank which regulates a valve controlling the inflow. The volume of the float is comparable with that of the tank, and the apparatus is adjusted so as to be in unstable equilibrium at a critical height. Any tendency of the level to fall, e.g. by cessation of supply, is compensated by a fall of the float to displace the level upward to its critical level. Specification 20616/07, [Class 135], is referred to.
Patent GB-1020792-A (GB)
Title: Improvements in or relating to reel stands
Inventor: HALL KENNETH JOHN
IPC: B65H75/40
Filed: 1964-01-21
Abstract: 1,020,792. Reel stands. A. FREDK. POWER & SONS Ltd. Dec. 29, 1964 [Jan. 21, 1964], No. 2534/64. Heading B8M. [Also in Division B3] A reel stand comprises a frame 10, 12, 13, Fig. 1 (not shown) adapted to hold a reel 15 for rotation about a horizontal axis and having an upwardly opening slot 18 to receive the reel spindle, and a loading arm 11 pivoted to the frame at 26 and having a notch 27 adapted to receive the reel spindle 21a when the arm is in a lower position lla and to allow the spindle to roll into the slot when the arm is raised to an upper position 11. The arms 10, 12, 13 each comprise spaced strips 14, Fig 2 (not shown) welded to centre plates 16. Removable spacers such as 39, 40 permit the stand to be adjusted for different widths of reel. Arm 13 carries an axle 33 with wheels 36, arm 10 has feet 37 and arm 12 carries guide rollers 41 and a guide arm 52 for the material on the reel, which may be steel band used for banding crates. Pivoted arm 11 has a handle 47, Fig. 3 (not shown) and its inner end provides abutment surfaces 30, 31 which lock the arm in its raised position when the reel spindle enters the slot 18.
Patent GB-754937-A (GB)
Title: Improvements in and relating to buckle fastenings
IPC: A44B11/25
Filed: 1954-01-28
Abstract: 754,937. Buckles. RAPCO SOC. ANON. Jan. 28, 1954 [Feb. 3, 1953], No. 2614/54. Class 43. [Also in Group XXV] A buckle fastening for a flexible strap, belt, or the like, comprises a rigid loop member 2 to which one end 3b of the strap is secured, and a rigid frame 1 having a pair of parallel slots 4, 5 separated by a cross-piece 6 around which the opposite free end of the strap is passed from below, the loop between the cross-bars 2a, 2b of the member 2 having a portion with longitudinal sides 2c, 2d which terminate at the edges 8 of a wider portion such that the tongue 9 of the frame 1 and the looped-around strap can be passed upward through it so that the sides 1c, 1d of the frame 1 bear upon the sides 2c, 2d of the loop member 2, and the free end 3a of the strap is gripped between an edge of the cross-piece 6 and the adjacent inside edge of the cross-bar 2a of the loop member, accidental loosening or freeing of the parts being prevented by so dimensioning them that the length A of the wider portion of the loop opening in the longitudinal direction is smaller than the distance D between the rear edge of the slide 1 and the rear edge of the cross-piece 6; also the length of the part B of the loop opening in the member 2 is less than the sum of the thickness F of the strap, Fig. 3 (not shown), and the distance C from the rear edge of the slide 1 to the front edge of the crosspiece 6. In order to disengage the buckle members the tab 9 is pressed upwardly from the end 3a of the strap, and the bar 1b of the slide is tilted through the wider portion of the loop of the member 2 prior to passing the whole of the slide 1 and the end of the belt therethrough. The two members may be stamped from sheet metal. In the example the rear end of the loop member 2 has a subsidiary crossmember 2h to which the end 3b of the strap is secured. In a modification, Fig. 5 (not shown), the members are made of moulded plastic material, and the sides of the loop member are formed with inwardly projecting guide ribs which terminate at the wider opening through which the slide member is brought on to the guide ribs to grip the free end of the belt wrapped around the cross-piece of the slide member.
Patent GB-1020849-A (GB)
Title: Rotary brush
IPC: A46B9/06
Filed: 1965-01-21
Abstract: 1,020,849. Rotary brushes. SMADA CORPORATION. Jan. 21, 1965 [March 25, 1964], No. 2728/65. Heading A4K. The powder absorbing capacities of fur covered brush rollers, used to remove powder from rotary metal drums, are increased by interposing helical strips 14 of harder coarser pile material between strips 13 of the usual rabbit fur. Preferably, alternating strips of fur and acrylic material are sewn together to form a sleeve which is secured by gluing to a tubular cardboard core.
Patent GB-625102-A (GB)
Title: Process and apparatus for continuous crystallization with chemical action
IPC: C01D1/22
Filed: 1946-01-28
Abstract: <PICT:0625102/III/1> A process for the continuous crystallization of a substance produced by chemical reaction in the presence of seed crystals suspended in a liquid is characterised in that the supersaturation of the liquid in the reaction mixture is limited by re-circulating mother liquor at a rate depending on the desired form and size of the crystalline product.  In a reaction of the type A+B=C+D, solutions A and B are introduced by pipes 1, 2 to a reaction chamber charged with crystals of C.  Solution D passing out at 4 is partly discharged by pipe 6 and partly re-introduced to the foot of the chamber by pipe 8.  The supply is first regulated to permit the growth of polycrystalline associations, and the flow is then increased to separate the polycrystals which act as seed crystals for further precipitation, the largest crystals being withdrawn at intervals.  It is also possible to carry out precipitation and the formation of new seed crystals simultaneously, or crushed fragments of polycrystals may be introduced as seeds.  In examples (1) SO4 ions are precipitated by the reaction with BaCl2 or BaCO3 solutions; (2) crystals of Na2CO3.10H2O are formed from NaOH+CO2 ; (3) CaCl2+MgCl2 are reacted with NaOH+Na2CO3 solutions to form a heterogeneous precipitate.  In modifications, one or more fractions of one reactant are introduced at different distances from the foot of the reaction vessel, the clear liquid being withdrawn at one or more points at different distances from the top of the vessel.  In further modifications clear liquid from the top of the reaction vessel is passed to a second vessel in which precipitation is completed.  To reduce the height of the reaction and crystallisation chamber, they may be subdivided into several elements and connected in series.  The Specification as open to inspection under Sect. 91 comprises also further examples of preparing sodium carbonate crystals, and simultaneously precipitating magnesium and calcium carbonates. This subject-matter does not appear in the Specification as accepted.
Patent GB-494476-A (GB)
Title: Carburetors for internal combustion engines
IPC: F02M1/00
Filed: 1938-01-29
Abstract: 494,476. Surface carburetters; vaporizers. BURRELL, E. Jan. 29, 1938, No. 2868. Convention date, Jan. 29, 1937. [Class 7 (iii)] Fuel, drawn from a tank 10 through a pipe 31 and heated in a chamber 27 around the exhaust pipe 11, is delivered through a pipe 26 into a pipe 15 through which air, heated in a chamber 16 around the exhaust pipe 11, is drawn into the vapour space in the tank 10. The heated fuel and air pass through wire screens 13 dipping into the fuel and are drawn into the induction pipe through a pipe 33.
Patent GB-548347-A (GB)
Title: Improvements relating to photographic materials
IPC: G03C1/043
Filed: 1941-03-03
Abstract: 548,347. Photographic emulsions. KODAK, Ltd. March 3, 1941, No. 2878. Convention date, March 2, 1940. [Class 98 (ii)] A spreading-agent for incorporation in a sensitive emulsion or in any other predominantly aqueous solution of gelatine or other hydrophilic colloid to be applied to a photographic support comprises an ether of the formula where R<SP>1</SP> is the hydrocarbon radical of a polyhydric alcohol of at least three hydroxyl groups, n and p are integers whose sum equals the number of hydroxyl groups of the polyhydric alcohol, and each R is an aliphatic alkyl or acyl radical containing from 8 to 18 carbon atoms or an alicyclic alkyl or alicyclic acyl radical. From 0.002 to 0.2 per cent of the ether (by weight) may be present in the sensitive emulsion of other solution. R<SP>1</SP> may be the residue of glycerol, pentaerythritol, sorbitol, or mannitol, and R may be lauryl, lauroyl, oleyl, oleoyl, naphthenyl, abietyl, hydroabietyl, naphthenoyl, abietoyl or hydroabietoyl. An example is 1 : 2 : 3 : 4 : 5-penta- #-hydroxyethoxy-6-#-lauryloxyethoxyhexane. The sensitive emulsion or other solution containing the ether may be applied to the support and set by chilling, and before drying, a predominantly aqueous solution of gelatine or other hydrophilic colloid may be applied over the layer produced. If more than one predominantly aqueous solution of gelatine or other hydrophilic colloid is applied to the support, any or all of the layers may contain the ether. The incorporation of the ether may also improve the ageing qualities of the emulsion, increase its speed, and reduce storage fog. The emulsions are also more readily wetted by developing solutions. Other hydrophilic colloids referred to are watersoluble cellulose derivatives such as well-hydrolysed cellulose acetate, cellulose esters of lactic, glycollic, and other hydroxy-monocarboxylic acids and salts of cellulose esters of dicarboxylic acids such as phthalic acid ; polyvinyl alcohol such as hydrolysed polyvinyl acetate, and water-soluble polyvinyl acetals. Specifications 531,579, 542,703 and 542,704 are referred to.
Patent GB-801569-A (GB)
Title: Improvements in or relating to containers for liquids
IPC: G01F11/02
Filed: 1956-01-30
Abstract: 801,569. Reciprocating pumps. REDEX, Ltd. [formerly WAYNE V. MYERS CO., Ltd.], and WARD J. C. Jan. 22, 1957 [Jan. 30, 1956], No. 2955/56. Class 102(1). [Also in Groups XVII and XVIII] mA container for liquid comprises a vertical metal tubular body 1 clamped between a base 3 and a cover 4, having one or more windows 28, 29 extending from near its top to near its bottom and having a close-fitting transparent plastic tubular lining 2 the ends of which are folded back over the top and bottom ends of the metal body. The ends of the tubular assembly 1, 2 are spigotted into the splayed base 3 and domed cover 4 at annular grooves 31, 32, the whole being tied together by vertical bolts 5, 6 passing through the container so that when their nuts are tightened a fluid-tight seal is provided by compression of the lining material 2 in the grooves 31, 32. A graduated scale 33 may be printed on the inside of the lining 2 visible through two of the windows. A pump and hose assembly similar to that described in Specification 613,265 is provided, as well as an inclined drain bore 21 adapted to receive the nozzle and a filler cap and opening. The pump piston rod 16 is surrounded by a helical compression spring arranged in a telescopic casing 18. In a modification (not show) an outer covering sleeve of synthetic plastic material is fitted over the outside of the tubular assembly 1, 2 and its ends folded back over the insides of the top and bottom of the assembly, or under those of the tubular lining 2. Again, the lining and outer sleeve may be replaced by a single sleeve of nearly twice their lengths which is doubled over. An adhesive sealing compound may be used in the grooves 31, 32 as an added precaution.
Patent GB-100975-A (GB)
Title: Improvements in Sheet Metal Split-pulleys.
Inventor: HADDAN REGINALD
IPC: B21D53/00
Filed: 1916-02-28
Abstract: 100,975. Haddan, R., (Barry Co.). Feb. 28,1916. Pulleys.-A sheet-metal split pulley comprises two similar sections each consisting of a rim with curled edges 1<a> and integral tongues 2 bent inwards to form a hub. The tongues overlap, one being shouldered at 2<e>, and are united by spot-welding or other means. A plate 3 inserted in each section is bent to form two chambers 3a, in which the screws 5 connecting the sections together are confined, access being obtained through openings 1<p> in the rim. The screws engage threaded openings 2h in the tongues 2 of the opposed section, and collars or nuts 2i may be provided.
Patent GB-1378624-A (GB)
Title: Method of and apparatus for operating a cyclotron
IPC: H05H13/00
Filed: 1973-01-19
Abstract: 1378624 Cyclic particle accelerators CYCLOTRON CORP 19 Jan 1973 [4 Feb 1972] 2991/73 Heading H1D In a method of operating an isochronous cyclotron which permits the use of an increased beam current, the axial height of the beam in the cyclotron orbits near and at an internal target, or an extraction radius, is increased by applying in the region of those orbits a vertical time-varying electric field tuned to the natural axial oscillation frequency of the beam in the orbits, thereby partially offsetting the strong natural vertical focusing in the fringe field of the cyclotron, and decreasing the power density dissipated at the target or extraction system. The vertical field is produced by a tunable r.f. generator (Fig. 4, not shown) coupled by copper cooling leads to a pair of copper deflection plates which are shielded from the r.f. accelerating field of the dees by a conductive shield.
Patent GB-1012822-A (GB)
Title: Process for the preparation of metal-containing water-soluble cationic dyes and their use in dyeing processes
Inventor: HOSOKAWA KENJIRO
IPC: C09B67/00
Filed: 1963-01-24
Abstract: Metal-containing water-soluble cationic dyes are prepared by reacting one of the following:-  (1)  A dyestuff having a -CHO and an -OH group in the ortho position with respect to each other in its molecule.  (2)  A dyestuff having a -CHNOH and an -OH group in the ortho position with respect to each other in its molecule.  (3)  A dyestuff having a nitrogen-containing heterocyclic ring and an -OH group in periposition with respect to the heterocyclic nitrogen atom; and  (4)  A dyestuff having a <FORM:1012822/C4-C5/1> group in its molecule; with a compound (having a " basicity " of less than 33.3%) of trivalent chromium, tetravalent zirconium, trivalent titanium or tetravalent titanium in an organic solvent under acidic conditions. The " basicity " is defined by the formula number of OH groups attached to the metal/valency of metal x 100  Specified metal compounds are titanium triand tetra-chlorides, zirconium oxychloride, chromium chloride and chromium formate. Specified solvents are ketones and particularly alkanols and glycols.  The dyes may be used to colour nitrogenous, cellulose, polyester and in particular polypropylene fibres.  In examples, the preparation of metal complexes of mono-and dis-azo dyes is described.
Patent GB-1098693-A (GB)
Title: Sterilization of surfaces by gaseous plasmas and apparatus therefor
IPC: H05H1/00
Filed: 1965-01-22
Abstract: Surfaces, e.g. of containers, are sterilized by contacting them with a gaseous plasma comprising an ionized body of gas for a short period so that no appreciable physical change of the surface occurs. Apparatus for carrying out the process comprises means for directing an inert gas towards the surface and electrical means for ionising and subsequently forming a plasma of the gas. In apparatus for sterilizing the interior of a container, the gas directing means is arranged to "sweep out" the space inside the container.
Patent GB-630505-A (GB)
Title: Improvements in apparatus for the purification of liquids
IPC: C02F1/52
Filed: 1947-01-31
Abstract: 630.505. Gravity-separation apparatus. PATERSON, W. Jan. 31, 1947, No. 3067. [Classes 46 and 111] An up - flow liquid treatment tank is divided into lower turbulent and upper quiescent sections by a diaphragm having therein numerous flow - restricting orifices of upwardly expanding trough or funnel shape the total minimal cross-sectional area of which orifice is substantially less than the horizontal cross-sectional area of the liquid in the lower chamber and which ensure uniform up-flow from the turbulent to the quiescent section at the inflow rate. As shown in Fig. 1, water to be clarified may first be admixed with chemicals introduced at R, and then flows tangentially at F into a reaction section C at a speed sufficient to maintain the accumulated slurry in a state of suspension. A portion is continuously displaced upwards by incoming water through restricting orifices or slots G in a diaphragm B, which in this case has the form shown by the lower set of inverted triangular beams B in Fig. 17. In the rapidly-expanding areas above the slots G the upper surface of the slurry suspension forms, and clear water rises to a collecting trough E, solids left behind on the diaphragm avalanching back from time to time into the lower chamber C, some of them being deposited in a concentrator M. Heavier slurry is dealt with by a scraper L. When it is desirable to maintain the slurry level above the diaphragm ridges, concentrators N may be provided. In a modification, raw water enters the chamber C radially at two points, chemical also being admitted direct to the chamber, and a rotating impeller is provided which may replace, or be additional to the scraper L. In the arrangement of Fig. 5 thorough mixing of the liquid to be treated, entering at F<SP>2</SP> with chemical introduced at P, is ensured by an additional impeller O<SP>1</SP> and surrounding baffles which may alternatively be arranged outside the tank. The troughlike furrows of the diaphragm B are extended upwards to prevent still further the possibility of short-circuiting towards the draw-off. Uniform draw-off is effected through a series of submerged slits in the weir wall. Other forms of diaphragm are shown in Figs. 14, 17, 18. The inverted pyramids are suspended from light girders spanning the tank and may be hexagonal or replaced by cones. The invention may be applied to a rectangular tank in which two impellers and four paddle-agitators rotate about horizontal axis, the water to be treated being introduced on opposite sides of the impellers, and the chemical entering between the rotors. In cases where there is a tendency to horizontal flow just beneath the diaphragm the upstream edges of the orifice of slots G may be lower than the downstream edges. The vertical extension of the diaphragm of Fig. 5 may be separated by a gap from the diaphragm cells. In all cases, another diaphragm may be arranged near the surface of the liquid in chamber P. The main diaphragm when purifying effluent, may be covered with a fine-meshed screen.
Patent GB-456275-A (GB)
Title: Improvements in or relating to tables
IPC: A47B1/02
Filed: 1935-01-30
Abstract: 456,275. Tables. LEBUS, H. A. H., Finsbury Cabinet Works, Tottenham Hale, BROWN, A., 32, Birley Road, Whetstone, and HILL, H., 33, Waverley Avenue; Chingford, all in London. Jan. 30, 1935, No. 3092. [Class 52 (iii)] The top of a table comprises two pairs of hinged leaves 4, 5, 41, 51, the lower leaves 5, 5<1> being secured to the upper horizontal faces of runners 6, 61 which are disposed between horizontal guide members secured to the table framework. The runners 6, 61 are each provided with a groove 12, 13, 14 and have their undersides each provided with a sloping portion, pins 11 secured to the horizontal guide members co-operating with the grooves 12, 13, 14 so that on drawing out the leaves the runners are so supported by the pins 11 and the side members 3 as to maintain the leaves always horizontal while raising them a distance equal to the thickness of one leaf. When further outward movement of the runners 6, 6<1> is prevented by the stops 15, 15<1> contacting the side members 3, the top leaves 4, 41 are turned inwards and supported on the surface 17 of the runners 6, 6<1>. Specification 450,682 is referred to.
Patent GB-1594224-A (GB)
Title: Preparation of cyclopropane derivatives
IPC: C07C69/743
Filed: 1977-01-26
Abstract: Compounds of the general formula: <IMAGE> in which X represents a halogen atom, while R<1> represents a hydrogen atom or an alkyl group, and R<2> represents an alkyl group, or R<1> and R<2>, together, represent an alkylene chain, or the salts, anhydrides, carboxamides or alkyl esters of these acids. Use as starting material for synthetic pyrethroids.
Patent GB-873581-A (GB)
Title: An improved method of and apparatus for applying enamel to cast metal articles such as baths, sinks and the like
Inventor: WEBSTER GEORGE REGINALD
IPC: C23D5/00
Filed: 1959-01-29
Abstract: 873,581. Enamelling. ALLIED IRONFOUNDERS Ltd. Jan. 28, 1960 [Jan. 29, 1959], No. 3190/59. Class 56. Enamel is applied to a cast metal article by locating the article in a heating enclosure, raising the temperature sufficiently to allow enamelling to take place, applying enamel in powder form while the article is still in the enclosure and continuously oscillating the article and enclosure with a complex motion during the application of enamel. In the appartus shown the article 1, such as a bath which may have been heated in a pre-heating enclosure, is supported by a crutch 9 at the upper end of a shaft 10 and by the upper edges of a box 2 with removable lid 4. Lid and box are provided with heaters which may be electrical. The box is rotatable about the axis of the shaft 10 in bearings 11 by a drive through gearing 17, 18 and a chain 21. The whole system is suspended from a shaft 13 in bearings 14 and may be oscillated about the shaft by. a reversing drive to a gear 24 engaging a toothed sector 23. The enamel powder may be applied to the heated article mechanically or by hand. When the enamelling is complete the object is ejected from the box 2 by axial movement of the shaft 10 by an hydraulic cylinder 28.