baber/WOPTO huggingface dataset:
Patent GB-1028708-A (GB)
Title: Improvements in or relating to the aeration of liquids
IPC: C02F3/16
Filed: 1963-05-04
Abstract: <PICT:1028708/C1/1> A tank A for treating sewage or other liquids comprises air diffusing pipes B submerged at a depth not exceeding one metre and a mechanical surface aerator and circulator G.  Pipes B form a parallel grid (Fig. 2, not shown), covering all or part of the area of tank A and have outlet holes, above or below, or porous dome diffusers (Figs. 3, 4, not shown).  In a circular tank, pipes B form concentric rings.  Air is supplied to pipes B by a ventilating fan or blower.  Aerator/ circulator G may comprise a rotating cone with internal and/or external blades, as described in Specifications 602,130, 862,761 and 1,022,284. Alternatively, the aerator/circulator may comprise angularly spaced arms having partly immersed dependent teeth (Fig. 5, not shown), as described in Specification 896,278. This latter arrangement may be used in combination with a coaxial rotating cone, as above, or with a submerged impeller creating an upflow or downflow to circulate the liquid.  A sewage-purification plant may comprise shallow tanks having surface agitators and diffusing pipes as in Fig. 5 (not shown), arranged alternately with deep tanks having bladed-cone aerator/circulators.
Patent GB-721539-A (GB)
Title: Improvements relating to radar equipment
IPC: G01S7/28
Filed: 1951-07-26
Abstract: 721,539. Automatic frequency-control systems. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. July 26, 1951 [July 28, 1950], No. 17767/51. Class 38 (4). [Also in Group XL (c)] The local oscillator of a radar receiver is stabilized at the frequency of a separate cavity resonator coupled through a wave-guide with the local oscillator by comparing the phase difference between two points in the wave guide and controlling the oscillator frequency in accordance with the output of the comparing device. The radar transmitter frequency is independently stabilized. As shown, the same horn 8 serves for transmission and reception, the usual TR switch 18 and anti-TR switch 17 being provided and the transmitter circuit comprising a magnetron source 3 feeding the guides 4, 6, the latter of which is terminated by an absorbing load 7 and coupled to a stabilizing cavity resonator 5 of high Q factor. The receiver local oscillator 12 feeds through a guide 20 a cavity resonator 19 of high Q-factor, which is itself coupled to the guide section 18 containing the receiver crystals 13. Intermediate frequency energy resulting from the mixings of the received waves and the local oscillations is taken off from the crystal 13. At selected points along the guide 20, lateral guide sections 21, 22 are connected by slots f1,f2. Attenuators 24, 25 reduce the wave energy transferred to crystals 26, 27 across which potentials are set up whose difference is proportional to the deviation of the wave frequency from the natural frequency of the cavity resonator 19. This potential difference is amplified in a D.C. amplifier 23 and is applied to the oscillator 12 to correct its frequency. If a reflex klystron is employed, the correcting voltage is applied to the reflecting electrode.
Patent GB-1466736-A (GB)
Title: Silencer
IPC: H01H33/58
Filed: 1974-04-23
Abstract: 1466736 Exhaust silencers BROWN BOVERI & CIE AG 23 April 1974 17781/74 Heading F1B [ Also in Division H1] A silencer having a wall formed by inner and outer expandible rubber-elastic diaphragms provided with apertures which are offset with respect to one another may have contiguous diaphragms as in Specification 1417256 or spaced diaphragms as in Fig. 2. The silencer can be used with internal combustion engines, compressed air guns, pneumatic hammers or single or multi-way valves.
Patent GB-219476-A (GB)
Title: A method of lubricating leaf springs of automobile, railway and other vehicles
IPC: F16F1/24
Filed: 1923-07-09
Abstract: 219,476. Delmar, C., and Smith, C. W. July 9, 1923. Channels in springs. - Lubricant is supplied to grooves 2 on the undersides of the leaves 1 of a spring from a cup 3 screwed on the upper end of a central solid bolt 4 through two holes 5 in the base of the cup which register with two holes 6 a small distance on either side of the central bolt hole. The holes 6 extend through all but the lower leaf and communicate with the grooves 2. Absorbent material is placed in the holes 5, 6. A washer 10 is interposed between the cup and the upper leaf.
Patent GB-686385-A (GB)
Title: Improvements in or relating to the production of decoratively coated sheets, boards and the like
Inventor: BERRY WILLIAM
IPC: B05D3/12
Filed: 1949-07-06
Abstract: 686,385. Glossing coated paper &c. BRITISH CELLOPHANE, Ltd. July 3, 1950. [July 6, 1949] No. 17906/49. Class 96. [Also in Group XV] Sheets of paper are decorated by applying thereto a coating of a liquid thermosetting resin, which can be cured at normal pressures to yield a hard solid, heat and solvent resistant resin, and allowing it to set hard whilst in contact with a smooth non-porous flexible sheet of non-fibrous organic resin-insoluble material and then removing this flexible sheet. The paper may be gelatine-sized before treatment and the flexible sheet may be regenerated cellulose film. Specifications 265,334, [Class 93], and 391,488 are referred to.
Patent GB-710652-A (GB)
Title: Improvements relating to power operated presses
IPC: B21D22/00
Filed: 1951-07-27
Abstract: 710,652. Forging-presses. TAYLOR & CHALLEN, Ltd., and CHALLEN, H. D. July 21, 1952 [July 27, 1951], No. 17807/51. Class 83 (4) In a power press of the kind having a pair of dies which co-operate to form a split mould into which a heated billet is placed, and wherein recesses or bores are formed in the billet by a main press tool, which enters the billet in the main direction of flow of metal, and one or more subsidiary tools which enter the billet in an opposite and/or transverse direction, the subsidiary tool or tools 10 are driven at a speed in excess of the speed of the main tool through the intermediary of a clutch 5, 6 which is engaged automatically after, a predetermined stroke of the main tool. A flywheel 4, on the main crankshaft of the press, has gear teeth meshing with teeth on the driving part 5 of the clutch which is thus driven continuously at a higher speed than the flywheel. The clutch is engaged by a cam member 12 on the flywheel which actuates a rocker arm 14. The subsidiary tool 10 is operated through a connecting rod 9 driven by a subsidiary crankshaft 7 carrying the driven part 6 of the clutch. Specifications 367,137 and 480,160 are referred to.
Patent GB-1070626-A (GB)
Title: Process for producing colour photographic images and new compounds for use therein
IPC: C07D231/52
Filed: 1964-04-29
Abstract: The invention comprises pyrazolones of the formula <FORM:1070626/C2/1> in which R is alkyl, amino, acylamino or substituted phenylureido, X is hydrogen, nitro, amino, acylamino, substituted phenylureido or sulpho, and also cyanoacetyl benzenes of the formula <FORM:1070626/C2/2> in which X is hydrogen or acylamino and Y is hydrogen, alkyl or cyanoacetyl.  The pyrazolones of the above formula are made by (i) condensing 4-hydrazino-diphenyl sulphone or a nitro derivative thereof with ethyl acetoacetate or methyl stearoyl-acetate, or with ethyl b -imino-b -ethoxy-propionate followed by hydrolysis (Examples 1, 2, 4, 6 and 12); (ii) by oxidizing a corresponding sulphide (Example 7); (iii) by acylation of an aminophenylsulphonylphenylpyrazolone (Examples 3 and 8-12); (iv) by reduction of a nitrophenylsulphonylphenylpyrazolone to form the amine (Examples 5, 10 and 12); (v) by hydrolysis of a chlorosulphonylphenylsulphonylphenylpyrazolone (Example 12); and (vi) by reacting aminophenylsulphonylphenylpyrazolones with 4-chlorosulphonyl phenyl isocyanate and then with 3-amino-5-stearoylamino-benzoic acid to form a substituted phenylureido derivative (Examples 13 and 14).  The cyanoacetyldiphenylsulphones of the above formula are made by brominating the corresponding acetyldiphenylsulphones and reacting the product with an alkali-metal cyanide (Examples 15, 17 and 18), or by acylating an amino-cyanoacetyldiphenylsulphone (Example 16). 4-Hydrazino-diphenylsulphone and its 3-nitro derivative are made by reacting hydrazine with 4-chloro-diphenylsulphone and 3-nitro-4-chlorodiphenylsulphone (from 3-nitro-4-chlorobenzene-sulphonyl chloride and benzene in the presence of AlCl3), respectively (Examples 1 and 4).  2 - Acetylamino - 4 - acetyl - 41 - methyl - diphenyl-sulphone and 2-myristylamino-4:41-diacetyl-diphenylsulphone are made by acylating respectively 2 - amino - 4 - acetyl - 41 - methyl - diphenylsulphone and 2 - amino - 4:41 - diacetyl-diphenylsulphone prepared by reducing the corresponding 2-nitro-derivatives made by condensing 3-nitro-4-chloro-acetophenone with sodium p-toluene sulphinate dihydrate and sodium 4-acetylbenzene sulphinate respectively (Examples 15 and 17).  4-Acetyldiphenylsulphone is made by oxidizing the corresponding sulphide with hydrogen peroxide (Example 18). Sodium 4-acetyl-benzenesulphinate is made by heating sodium sulphite with 4-acetyl-benzene-sulphonyl chloride prepared by reacting diazotized p-aminoacetophenone with sulphur dioxide and cuprous chloride (Example 17).
Patent GB-165752-A (GB)
Title: Improvements in apparatus for indicating the level or the quantity of liquid in a reservoir
IPC: G01F23/50
Filed: 1921-06-30
Abstract: 165,752. Corset, L. A. M. July 1, 1920, [Convention date]. Indicators actuated by floats.-A liquid-level indicator comprises a float 5 guided by a rigid straight guide 2 and slidably engaging a depending lever 3 pivoted at or near its upper end for movement in a plane perpendicular to the axis of its pivot, the lever being of definite curvature with relation to the straight path of the float, and the shape of the tank containing the liquid so that its angular movements are proportional to the variations in the volume of the liquid. The float is provided with pulleys 6, 7 and 8 which engage the guide members 2 and lever 3, a guide member being arranged on each side of the lever. The angular movements of the lever are transmitted to the distant indicator by means of sliders 24 arranged in a tube 25, the movement being translated at the indicator through a sector and pinion mechanism into movement of a pointer over a dial. In a modification, the float pulleys are replaced by a central horizontal pin working between vertical guides and engaging a lever pivoted in the, base of the cap 15. The lever is formed with a quandrantal rack above the pivot pin engaging a pinion carrying a pointer and fitted to a horizontal dial mounted in the top of the cap 15. The curve of the lever 3 must be calculated mathematically for any particular tank. The lever shown is for use with a cylindral tank with the axis horizontal. For a tank of uniform cross-section the lever curve is a half parabola with the lever pivoted at the apex of the curve. The Specification as open to inspection under Sect. 91 (3) (a) describes various constructions of tube and slider transmission mechanism. This subject-matter does not appear in the Specification as accepted, but is described in Specification 186,068.
Patent GB-1584939-A (GB)
Title: Jam proof piston
IPC: F16J7/00
Filed: 1978-05-05
Abstract: The apparatus has a cylinder/piston device (12), the piston rod (28) of which is surrounded by a pre-formable, non-load-bearing sleeve (50). The thickness of this sleeve (50) is selected in such a way that the piston rod deformation to be expected, if the piston is struck by a projectile, does not extend radially beyond the outside diameter of the sleeve. The sleeve (50) can be made of brittle or soft material. The control apparatus does not need to be oversized so that particular parts can be dismantled after deformation of the piston rod; it thus has relatively small dimensions and is relatively light. <IMAGE>
Patent GB-939300-A (GB)
Title: Improvements in and relating to a feeding device
IPC: B23B13/00
Filed: 1962-05-09
Abstract: 939,300. Lathes. E. C. HAHN, [trading as INDEX-WERKE KOMM.-GES. HAHN & TESSKY]. May 9, 1962 [May 20, 1961], No. 17882/62. Class 83 (3). A feeding device 30, for feeding barstock 26 in an automatic lathe is formed by an axially movable bearing assembly comprising a pedestal 50 housing two ball-bearings 58 and a bush 56 with adjusting rings 80 thereon. A feeding tube 64 with flange 72 is located and axially movable within the bush. The flange 72 is biased towards the machine headstock 12 by springs 75 located between the bush 56 and flange 72. The reciprocation of the device is actuated by a cam 40 in conjunction with levers 32, 44. To position a new length of bar to be machined the device operates as follows: cam 40 is rotated and the device is moved away from the headstock 12 by lever 32, the feeding tube being moved therewith by contact between the ring 80 and collar 82 of the bush 56. During this movement the chucking collet 24 holds the barstock 26 against axial movement. At the end of the rearward movement of the device the chucking collet releases the barstock and the device returns to its original position carrying the barstock therewith. Upon abutment of the barstock with stop 16 on the headstock the device, which is adjusted for an additional travel of 2 to 6 mm., permits relative movement between the feeding tube and bush which is compensated for by the springs 75. At the end of a length of barstock, such that there is none present in the feeding collet when it makes its feeding movement, the ring 80 is in engagement with the collar 82 of the bush and the feeding tube is not moved against the springs, the flange 72 lying below a light barrier 78 so as to stop the machine by breaking electrical contact. In another embodiment an alternative feeding collet is shown and there may be mechanical trip switches to stop the machine when the barstock is diminished instead of the light barrier of the photo-electric cell type.
Patent GB-108798-A (GB)
Title: Improvements in Automatically Threading Loom Shuttles.
IPC: D03J5/24
Filed: 1916-12-13
Abstract: 108,798. British Northrop Loom Co., (Northrop Loom Co.). Dec. 13, 191,6. Shuttles.-An automatically - threaded shuttle for use with the weft - replenishing mechanism described in Specification 109,355, in which the weft-carriers are held in the magazine with their tips towards the warp, has its eye a in the front side of the lefthand end, preferably in the tapering portion thereof, and is provided with a sheet-metal threader D having a supplementary hook E, projecting from the front wall J and extending into a recess F in the rear wall G, and a shortened guard H of which the inner edge e is between the transverse plane of the eye and the adjacent tip N. The hook E extends rearwards at f and then both rearwards and towards the adjacent tip N across the threadirig-passage I, and its upper and lower edges b, c are inclined downwards and upwards respectively. The guard H overhangs the beak M of the threader. The weft-replenishing mechanism comprises a thread-placer and a thread finger, which respectively position the thread from the incoming weft-carrier in the space 0 below the lever of the hook E and close to the top of the shuttle forwards of the edge e, so that the thread enters the flaring mouth Q and slips past the hook E. As the shuttle makes its first flight through the shed with its eye end in advance, the thread reeves around the base f of the hook E, and, on the return flight, the thread is drawn be tween the guard H and the beak M, this action being ensured by the hook E, which holds the thread down in the passage I. During the third flight, the thread passes beneath the beak M and into the eye a in the usual manner. The upturned end K of the threader and a cross-pin may secure a tension pad L.
Patent GB-1459366-A (GB)
Title: Method for producing a slush of low-boiling gases
IPC: F25J1/00
Filed: 1975-04-30
Abstract: 1459366 Producing slush from gases MESSER GRIESHEIM GmbH 30 April 1975 [15 May 1974] 17971/75 Heading F4P A method of producing slush comprises isoenthalpically expanding a gas through a nozzle 5, the discharge pressure of nozzle 5 being alternated between pressures P U  and P O  below and above the triple point pressure P T . After being liquefied at 1 and expanded at 3 into separator 2, liquefied gas is expanded through nozzle 5 after heat exchange at 7 with vapour returning from slush vessel 6. Vapour from separator 2 passes back through liquefier 1, whereafter it combines with the vapour from slush vessel 6 for compression and recycling. The vapour from vessel 6 may be combined with that from separator 2 before passage through liquefier 1 (Fig. 4, not shown), or alternatively the separator may be dispensed with (Fig. 5, not shown).
Patent GB-492840-A (GB)
Title: Improvements in or relating to vehicle wheels and in the method of manufacture thereof
IPC: B21D53/26
Filed: 1937-06-29
Abstract: 492,840. Vehicle wheels. DUNLOP RUBBER CO., Ltd., and GOODYEAR, C. E. June 29, 1937, Nos. 18036 and 19384. [Class 144 (i)] [Also in Group XXII] A disc wheel has the body portion formed into two parts 4, 8, the part 4 being produced from strip metal rolled to flanged section and bent into an annulus and welded. One annulus forms two body parts, being symmetrical about, and circumferentially divided through,the flange 3 by which it is welded to the rim 5. The stamped centre portion 8 has punched bolt holes 7 and a bridge-bar 10 secured to diametrically opposite recesses in the flange 6 and serving to secure the fairing 11.
Patent GB-430384-A (GB)
Title: Improvements relating to the removal of iron from solutions of aluminium sulphate
IPC: C01F7/748
Filed: 1934-06-18
Abstract: 430,384. Aluminium sulphate. GROVES, W. W., 30, Southampton Buildings, Chancery Lane, London.-(Merrimac Chemical Co. ; Everett, Massachusetts, U.S.A.) June 18, 1934, No. 18042. Drawings to Specification. [Class 1 (iii)] In the removal of iron from aluminium sulphate solutions by means of lead peroxide, the solution is treated first with a lead peroxide containing iron and then with a lead peroxide containing less iron or free from iron. The solution may be treated with the lead peroxide in countercurrent ; preferably three separate stages are used, in each of which the lead peroxide is brought into intimate suspension in the liquid, and the latter separated by decantation after allowing the suspension to settle. Temperatures between 20 and 50 C., are preferably used, and the treatment may be applied to solutions of basic aluminium sulphate, and to solutions of concentrations not exceeding those having a specific gravity of 30 BÚ. Spent peroxide is revivified by bringing it into contact with dilute sulphuric acid solutions having successively decreasing contents of iron, treatment being effected in countercurrent, and the resulting ferruginous sulphuric acid may be used to form impure aluminium sulphate for treatment according to the invention from bauxite. Preferably lead peroxide obtained by reacting nitric acid with red lead is used in the process, and it is stored, when not in use, in the spent condition. Preferably also the impure aluminium sulphate solution is heated and cooled to render its iron content susceptible to the lead peroxide treatment. It is stated that the lead peroxide may remove other impurities present in addition to iron, such as arsenic, chromium, manganese, nickel, or cobalt. Specification 5579/81, [Class 1], is referred to.
Patent GB-112150-A (GB)
Title: Improvements in Carburettors for Internal Combustion Engines.
Inventor: SMAL FIRMIN
IPC: F02M5/12
Filed: 1916-12-15
Abstract: 112,150. Smal, F. Dec. 15, 1916. Spray carburettors.-To prevent the float needle valve from being affected by variations of pressure in the float chamber, the valve 7 is extended as shown at 15 through the cover 12 of the float chamber, the diameter of the extension being equal to that of the passage 16 controlled by the valve. If the carburettor works under atmospheric pressure, the part 15 simply emerges into the atmosphere, but in cases in which the petrol tank is under pressure, the part 15 extends into a chamber 20 connected by a pipe 19 with the space above the petrol in the tank 17. The float chamber communicates with the induction pipe through apertures 10, 11 and conduit 9. The air inlet is controlled by a valve 13. Reference has been directed by the Comptroller to Specification 16600/08.
Patent GB-1511141-A (GB)
Title: Apparatus for use in balancing wheels
IPC: G01M1/16
Filed: 1974-04-25
Abstract: 1511141 Wheel-balancing apparatus DUNLOP Ltd 18 April 1975 [25 April 1974] 18108/74 Heading G1N(A) Apparatus for balancing a wheel 17 comprises means, e.g. transducers T 1  and T 2 , for sensing forces on a shaft 11, means 33 for computing and means e.g. digital displays 41, 42, for displaying a required balancing weight value, and further circuit means whereby subsequent to rotation of the wheel and computation of the required weight value the value is displayed only when the point on the wheel rim at which the weight is to be applied is opposite a given datum on the apparatus. Signals corresponding to the balance weight required at the outer rim W 1  or at the inner rim W 2  pass to a conditioning unit 37 which produces a short pulse coincident with the peak value of each weight signal. The first of these pulses initiates counting by a counter in an angle storage units 43 or 44 of further pulses originating from a perforated disc 19 rotating between a light source and photo-electric unit 20. The counter resets itself after each complete revolution of the shaft and as this occurs unit 43 or 44 emits a pulse to open gate G7 or G8 to allow the weight value stored in digital storage units 39 or 40 to be displayed. However gate G7 or G8 is also held open by the logic sequence unit 30 while the wheel is decelerating to allow the correct weights to be obtained in readiness. Pulses from unit 20 may also be fed into unit 30 where they are used to determine rotational speed when a constant speed has been reached. The analogue to digital converter 38 may be adapted to select the nearest standard value of balance weight to that required.
Patent GB-274640-A (GB)
Title: Improvements in crank arms for hand-operating spindles
IPC: E05F11/38
Filed: 1926-07-20
Abstract: 274,640. Hobson, Ltd., H. M., and Sadler, L. E. July 20, 1926. Breaking-pieces for relieving strain.-A crank handle especially for use in opening carriage windows, is made in two parts which are clamped together and then applied to the shalt to be turned as a single member. The end of the shaft B takes into the cylindrical boss A<1> of one part A. The second part D is a cold stamping which hooks at D<1> over the edge A<3> of the first part and is then clamped to part A by bolt F, nut F<2>, and spacing washer E. A spring bolt C<1> passes through the boss A<1> into a hole B<1> in the shaft and has a portion C' accommodated in a slot A<2>. A spring extension C<2> tends to press the parts A and D apart and also retains the bolt C frictionally in position. The bolt is weak enough to permit shearing if undue force in turning is used. In a modification the part C<2> is omitted and the bolt is surounded by a coil spring. In a second modification the bolt C is disengaged by pulling the handle as a whole longitudinally of the shaft.
Patent GB-111567-A (GB)
Title: Clothes Hanging Device for Wardrobes and the like.
Inventor: MILES FRANK HENRY
IPC: A47B61/02
Filed: 1916-12-18
Abstract: 111,567. Miles, F. H. Dec. 18, 1916. Garment racks.-A clothes-having arrangement for wardrobes &c. comprises a number of sliding rails arranged side by side to enable one set of garments to be withdrawn without disturbing the other garments. The rail D is bent at the front to form a handle and is connected at its ends to a slide C supported by guide-strips B. The outward motion of the slides is limited by stop-screws E, F.