baber/WOPTO huggingface dataset:
Patent GB-585631-A (GB)
Title: Improvements in or relating to change-speed gearing for automatic lathes
IPC: B23Q5/14
Filed: 1944-07-03
Abstract: 585,631. Change-speed gearing. TAREX SOC. ANON. July 3, 1944, No. 12630. Convention date, July 23, 1943. [Class 80 (ii)] A change-speed drive for the single spindle 15 of an automatic lathe comprises parallel driving and driven shafts 14, 15, carrying constant-mesh gear-trains introduced singly or compound by one or more double friction-clutches 16, 18 on each shaft, each clutch comprising a slidablykeyed double inner member 16, 18, between freely-mounted members, one, e.g., 17a, of each of which is secured to a compound wheel, the gear-wheels 30, 31, of which mesh respectively with wheels 33, 34 secured to the freely-mounted members 18a, 19a of the double clutch on the other shaft. Similarly the freely-mounted clutchmember 18a on the shaft 15 has a compound wheel, the teeth 32, 33 of which mesh with wheels 28, 30 secured to the freely-mounted members 16a, 17a of the double-clutch on the shaft 14. Combinations using three meshing wheel-pairs in series are thereby possible. An additional train includes a wheel 29 on the driving shaft 14 meshing with a wheel 35 integral with the freely-mounted wheel 34, a one-way roller clutch 20 being provided in the hub of the wheel 29 or 35. The clutch 18 is used in its two engaged positions only, that 16 being used also in a neutral position to give six ratios in ascending order as follows: (1) one-way clutch 20, wheels 29, 35 and clutch 18, 19a, the double clutch 16 being in neutral ; (2) clutch 16, 17a, wheels 31, 34 and clutch 19a, 18; (3) clutch 16, 16a, wheels 28, 32, 33, 30, 31, 34 and clutch 19a, 18; (4) one-way clutch 20, wheels 29, 35, 34, 31, 30, 33 and clutch 18a, 18; (5) clutch 16, 17a, wheels 30, 33 and clutch 18a, 18; (6) clutch 16, 16a, wheels 28, 32 and clutch 18a, 18. In combinations (2), (3) and (5) the one-way clutch 20 overruns. The gear is motor-driven through the usual pick-off gears and is controlled automatically by the usual cam mechanism. The Specification as open to inspection under Sect. 91 states also that, in order to avoid the necessity for a neutral position of the clutch 16, one-way clutches may be included in the wheels 28, 32, 33, the latter pair 32, 33 being made separate. A modification (Figs. 10-14 (Cancelled) and not shown) is also described, providing four speeds with no neutral position of the double clutches, the wheel-pair 29, 30 and one-way clutch 20 being omitted and a stepped idler interposed between the wheels 31, 34 so that the two low-speeds are in the opposite direction to the two high. The stepped idler is exchangeable to vary the range of ratios, and may also be similarly introduced into the form shown in Fig. 2. A modification of this form provides only three ratios by making the wheel 31 separate from the wheel 30 and securing it directly to the driving shaft 14. This subjectmatter does not appear in the Specification as accepted.
Patent GB-328437-A (GB)
Title: Improvements in or relating to apparatus for pulverising coal and like substances
IPC: B02C15/02
Filed: 1929-04-24
Abstract: 328,437. Ashington Coal Co., Ltd., and Drummond, W. J. April 24, 1929. Roller-and-ring mills; mills of unspecified type combined or fitted with screening, sorting, and other apparatus.-In apparatus for pulverizing coal &c., receptacles are attached to the grinding chamber -whereby particles of pyrites &c. are deposited, air being admitted to the receptacles to sweep back any coal &c. which tends to fall into the receptacle. As shown applied to a pendulum type of roller-and-ring mill, the receptacles J communicate with the grinding chamber between the circumference of the ploughs C and tangential air inlets G<1>. The receptacle J is provided with a perforated ring J‹ which can be rotated to adjust the volume of air passing through corresponding perforations in the casing of the receptacle. The outlet from the receptacle is closed by a weighted or spring-controlled flap J<4> which opens automatically to discharge the heavy material therein. The reduction of air pressure in the grinding chamber due to the withdrawal of the fines causes a current of air to pass through the perforated ring J<6> and removes the coal dust &c. in the receptacle. The receptacle may be in the form of a cylinder, the perforations in which are regulated by a screwed sleeve. The flap may be opened by a solenoid and an air pipe may be connected to the receptacle to admit a blast of air.
Patent GB-397437-A (GB)
Title: Improvements in or relating to ladies' apparel belts
IPC: A41F9/00
Filed: 1932-03-30
Abstract: 397,437. Abdominal belts. JORGENSEN, C., 17, Bernstorffsgade, Copenhagen. March 30, 1932, No. 12742/33. Divided on 393,047. [Class 141.] An abdominal belt for ladies' wear, made in one piece of a stiff or stiffened material, is so shaped that the back part 2 lies substantially horizontally between the crista ilii and the twelfth costa, and the front part passes below the umbilicus, the belt ends being connected together by any suitable means 18. A corselette 15 provided with suspenders, a suspender belt, or other suitable article of ladies' wear may be attached to the belt. In a modification, stocking suspenders may be connected directly to the belt.
Patent GB-1177213-A (GB)
Title: Improvements in or relating to Laminated Packaging Materials
Inventor: BUNNELL THOMAS KENNETH
IPC: B65D65/40
Filed: 1966-03-23
Abstract: 1,177,213. Laminates including corrugated layers. WM. DOLAN (BOXES & CARTONS) Ltd. 5 April, 1967 [23 March, 1966], No. 12803/66. Heading B5N. A laminated material consists of a corrugated layer 1 between two plane layers 2, 3, in which the corrugated layer is formed of paper, e.g. kraft paper, and at least one of the plane layers, as 3, is formed of a foamed or expanded thermoplastics material, e.g. polystyrene. The second plane layer may be of paper. Each or both of the plane layers may consist of an inner layer of paper and an outer layer of foamed thermoplastic. The thermoplastic may be coloured and a surface layer may be printed upon. The laminate is formed by calendering continuous webs of material between heated rollers. A polystyrene adhesive may be applied to the corrugated layer.
Patent GB-115997-A (GB)
Title: Improvements relating to the Manufacture of Coal Gas.
IPC: C10B1/04
Filed: 1917-09-07
Abstract: 115,997. Goodall, Clayton, & Co., and Settle, T. Sept. 7, 1917. Coking processes; retorts, method of working. -In a coking process in which a series of retorts are arranged in one setting, steam is passed downwards through one retort and the gas so formed is led to a common superheating-chamber, from which it is passed upwards through a newly-charged retort. A series of retorts 1, 2, 3, 4 are used, and these are arranged in a brick setting provided with heating-flues. Steam from a superheater i, also heated by flues in the same brick setting as the retorts, is led by pipes j, k and valves l to the desired retort. The products from this retort pass to a common heated chamber c and thence to another retort which has been recently charged. The resultant gas is led away through a valve h and pipe g to a common hydraulic main f.
Patent GB-914850-A (GB)
Title: Process for the manufacture of tubes from thermoplastic material
IPC: B29C48/90
Filed: 1961-04-10
Abstract: 914,850. Extruding tubes. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. April 10, 1961 [April 12, 1960; Jan. 12, 1961], No. 12878/61. Class 87(2). Tubes of thermoplastic material extruded horizontally are internally cooled by direct contact with a cooling liquid supplied through an insulated duct passing through the mandrel of the die. In the die illustrated cooling liquid from insulated pipe 3 passes through holes 6 in interval sizing device 5 to contact the inner wall of extruded tube 7.
Patent GB-702851-A (GB)
Title: Improvements in or relating to processes for the production of multi-apertured thin foil members
IPC: B63C11/50
Filed: 1951-05-31
Abstract: 702,851. Photomechanical printing-surfaces. FERNSEH GES. May 31, 1951 [April 22, 1949; April 22, 1949], No. 12893/51. Class 98(2) [Also in Groups XXII and XL(a)] A multi-apertured thin metallic foil suitable for use as electrodes or electrode supports in electron discharge tubes, or as stencils used in the manufacture of mosaic electrodes for television tubes, is made by evaporating a layer of metal upon a planar support under vacuum, forming a photosensitive resist, such as a chrome-lacquer, upon the metal layer, exposing the resist to light through an appropriate negative, developing the resist and then removing portions of the metal layer by etching through the resist. In an alternative method the resist is first formed on the support, a latent image is formed in the resist and the metal layer evaporated on top of the resist. The resist and metal layer is then removed from the support, the latent image developed, and the process is again completed by etching through the resist. A metal layer, for example silver or copper, may intervene between the resist and the support, this layer being removed with the resist. This layer is then stripped from the resist by etching before developing the latent image and etching the evaporated layer through the resist. In these methods the metal layers may be additionally thickened by electrolytic deposition. The master negative used in these methods may comprise a silver layer on a glass plate, the silver layer being ruled mechanically or broken up into small globules by heating. Specifications 406,353 and 486,548, [both in Group XL], are referred to.
Patent GB-385832-A (GB)
Title: Manufacture of anti-halation layers for photographic materials
IPC: F16G13/14
Filed: 1932-05-05
Abstract: An antihalation layer, more particularly for a sensitive layer which is to be developed to a positive by reversal, consists of colloidal silver and a binding agent such as gelatin, casein, or the calcium salt of polyglucuronic acid.  The layer may be situated on the rear of the support, or between the sensitive emulsion and the support. The size of the silver particles, which can be varied by adding an electrolyte such as disodium phosphate during or after the preparation of the colloidal mixture, is preferably such that the layer has a spectral permeability over the range 550-700 m m , and the support of the layer is preferably dyed with a dye covering the gap of absorption of the antihalation layer, such as blue, violet, or lavender.  Suitable dyestuffs are mentioned in the Specification. The colloidal silver dissolves in the reversal bath, but the dye remains in the support to colour the final picture in the case of a positive produced by reversal. In an example, the colloidal silver coating material is prepared by adding hydrazine sulphate slowly to a warm water solution of silver nitrate, ammonia, and gelatin, heating, allowing to solidify, cutting into small pieces, and washing.  It is applied in molten condition to form the antihalation layer, and the support is dyed with aniline blue dissolved in a methanol and alcohol mixture in the case of nitrocellulose support, or in a methanol and acetone mixture in the case of acetyl cellulose support.
Patent GB-131285-A (GB)
IPC: H01H13/12
Abstract: 131,285. Pouchain, A., (Assignee of Fiorio, V.). Aug. 14, 1918, [Convention date]. Switches, quick-action; contacts.-A rod 1, movable axially by pressure or traction, carries a pivoted part 5 which bears against a stop 9 when displaced in one direction, and is thereby turned to make or break an electric circuit through contact blades 3, 4, between which it lies. As shown, the rod 1 is operated by a push 2, the block 5 is of insulating material traversed by a wire projecting on to opposite faces, and the stop 9 is formed upon the contact spring 4.
Patent GB-454174-A (GB)
Title: Improvements in and relating to variable condensers
IPC: H01G5/38
Filed: 1935-05-03
Abstract: 454,174. Condensers. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.- (Radio Condenser Co. ; Thorne Street, Camden, New Jersey, U.S.A.) May 3, 1935, No. 13288. Drawings to Specification. [Class 38 (ii)] A method of assembling a variable condenser having a frame with rotor bearings, intermeshing rotor and stator plates, the stator plates being attached to tie-bars, comprises first positioning the rotor plates in operative position, passing the stator plates into engaging position with the rotor plates, with a spacing fixture to space the plates appropriately, then soldering the stator tie-bars to supports carried on the frame and withdrawing the spacing fixture. Preferably, the rotor is mounted in at least one of its bearings with the rotor plates extending upwards, the stator plates are meshed, and both sets are then turned 180‹ into position within the frame and the stator sets soldered. A condenser forming the subject-matter of Specification 455,897 is described.
Patent GB-936270-A (GB)
Title: Electrical protection and burglar alarm system
IPC: G08B13/16
Filed: 1962-04-06
Abstract: 936,270. Burglar alarms. AMERICAN DISTRICT TELEGRAPH CO. April 6, 1962 [May 31, 1961], No. 13293/62. Class 118. [Also in Group XL (c)] A burglar alarm operates on the principle of detecting vibrations caused by attempts at entering the premises and energizes piezoelectric microphones 12, 13 fixed to the walls connected through a transistor amplifier 21, 24, 25, 26 to a unijunction transistor 63 so biased as to energize an alarm relay 64 only if the detected vibrations are of duration sufficient to indicate that they are not accidental. This is achieved by the provision of a transistor 45 (normally biased to cut-off), and a capacitor 61, the amount of charge on which determines when transistor 63 becomes conductive. If the amplitude of the detected vibrations is sufficient transistor 45 conducts and energizes relay 47. Armature 51 of relay 47 then makes with contact 52 and capacitor 61 begins to charge up through one of resistors 58, 59, 60 and provided the vibrations are of sufficient duration the charge on capacitor 61 will be high enough to make transistor 63 conductive. The alarm signal may be transmitted to a central station 65. If an alarm is detected contact 64.1 of relay 64 opens, opening the central station circuit and resulting in the opening of " ground drop 69 alerting the central station operator. Transistor 63 locks relay 64 until power is removed from the line at the central station. After opening of 69 a further " ground drop " 70 is operated as another warning due to the energization of relay 82 when contact 64.1 opens. A rectifier 100 produces the delay between operation of 69 and 70. Restoration of the circuit is effected by opening switch 71. A testing circuit comprises a buzzer 102 having interruptor contacts 103 simulating vibrations and associated with one of the microphones. Test switch 71 armature is switched to 105 at the central station, this connecting battery 68 and drops 69, 70 from line 66, 67 and connecting test battery 106 and the primary of transformer 107. The voltage of battery 106 is higher than that of 68 and sufficient to energize relay 83 and open contact 83.1. If the system is in operating condition the vibrations produced by buzzer 102 will cause energization of transistor 63, opening of alarm relay contact 64.1 and energization of relay 82. Contact 82.2 closes, test bell coils 98, 99 are energized and the test bells ring in addition to the flashing of a neon 108 at the central station due to the intermittent opening of test bell contact 89. A varistor 101 across 64.1 quenches any arcs on opening of this contact and a Zener diode 104 is connected across the buzzer coil.
Patent GB-1041885-A (GB)
Title: A wagon circulation mechanism for a conveyor installation having travelling platforms
IPC: B61B1/00
Filed: 1964-03-31
Abstract: 1,041,885. Rail vehicles systems &c. STIEMAG MASCHINENUND STAHLBAU NETPHEN G.m.b.H. March 31, 1964 [April 30, 1963], No. 13306/64. Heading B7L. [Also in Division B8] A pit head installation having a shaft 2, tippler 11, and traverser platforms 5, 6 running on rails 7, 8 is characterized in that the wagons are moved on to and off the platforms 5, 6 by friction-wheel drives 17-20 which engage friction surfaces on them. The friction-wheels may act as brakes when wagons are being received on to the platforms.
Patent GB-594881-A (GB)
Title: Improvements in container filling apparatus
IPC: B67C3/26
Filed: 1944-07-12
Abstract: 594,881. Filling bottles &c. REDDIE, L. N. (Girdler Corporation). July 12, 1944, No. 13362. [Class 125 (ii)] A filler valve for filling bottles &c. with liquids, e.g., milk, comprises a nozzle 78, Figs. 2 and 3, carried in a tube 76 slidable in an outer tube 70 fixed in the milk &c. reservoir, a further slidable tube 92 weighted at 100 and flared at 96 to close the bottom of the third entrance channel defined by tubes 76 and 92, and a slidable rod 105 weighted at 120 and carrying a coned head 111 which normally closes the entrance to vent tube 92. The vacuum in the reservoir normally holds valves 111, 96 seated, but when a bottle is pressed against washer 80, the tubes 76 and 92 and rod 105 first move bodily against the pressure of a spring 89, until a stop 121 contacts rod 105 and opens valve 111 which causes the withdrawal of air from the bottle to begin. When the pressure in the bottle has been reduced valve 111 opens further and valve 96 falls from its seating and milk is admitted to the bottle through ports 95. If a damaged bottle is used the air leakage prevents the opening of valve 96. Alternative forms for the upper end of the filler head are shown in Figs. 16 and 18. The reservoir 30, Fig. 2, rotates on a pillar 133 around a tube 35 between which a tube in a channel is constituted for connecting to a vacuum through pipe 31. Milk &c. is supplied through tube 24 and the level is controlled by a float 53, which in the position shown closes the milk entrance by a washer 55, but which admits liquid by port 56 through a filter 62 when the level falls. The float is prevented from rotating.
Patent GB-958910-A (GB)
Title: Lubricating oil compositions
IPC: C10M133/00
Filed: 1962-04-06
Abstract: A lubricating oil composition comprises (A) a major proportional of an oil of lubricating viscosity, (B) from 0.1-45 % wt. of an N-substituted C30-200 alkenyl succinimide, and (C) from 0.01-2 % wt. of a polyamine or a fatty acid salt thereof, said polyamine having the formula <FORM:0958910/C3/1> where X is -OH or -NH2, n is 0 or 1, and q is a number from 0 to 10, the succinimide/polyamine weight ratio being in the range from 3.0 : 1 to 100 : 1. Suitable succinimides include those represented by the general formulae <FORM:0958910/C3/2> <FORM:0958910/C3/3> where Z is monoalkylene diamine or polyalkylene polyamine radical, Y is a divalent radical derived from Z, and R is a C30-200 alkenyl radical.  Y and Z may also be derived from heterocyclic amines such as amino-alkyl piperazines. Fatty acids which may be used to form salts of the polyamine (additive (C)) range from acetic to stearic and higher fatty acids. Typical additives (C) include diethylenetriamine, hydroxyethyl ethylenediamine and tetraethylenepentamine monostearate, many others being listed.  Any polyolefin produced as an impurity when the succinimide derivatives are prepared may remain in the final lubricating composition.  The oils of lubricating viscosity are the usual types including mineral and other hydrocarbon oils including alkylene polymers, alkylene oxide-type polymers and derivatives thereof, dicarboxylic acid esters, liquid esters of acids of phosphorus, alkyl benzenes, polyphenyls, alkyl biphenyl ethers, silicates and poly siloxanes.  Examples of these oils are given, but the compositions of the specific examples are all based in mineral oils.  Specification 934,401, 942,818 and 956,802 are referred to.
Patent GB-543431-A (GB)
Title: Improvements in or relating to the purification of aluminium
IPC: C22B21/06
Filed: 1940-08-24
Abstract: 543,431. Aluminium. GENTIL, H. L., and ALLOY PROCESSES Ltd. Aug. 24, 1940, No. 13431. [Class 82 (i)] In a process for refining aluminium of the kind in which the aluminium is recovered from molten metal by distillation and condensation under high vacuum, the condensation is carried out in a chamber the first part of which is maintained at a temperature at or below the condensation temperature of pure aluminium, and a further part is maintained at a lower temperature at or below the condensation temperature of the other vaporizable metals. The condensation chamber may be constructed as described in Specification 543,370. If the original material contains a considerable proportion of metals other than aluminium its composition may be adjusted before distillation to form a eutectic of the metals other than aluminium by adding for example scrap aluminium, copper, zinc, or molybdenum, the mixture being melted and separated by liquation, and the aluminium-rich portion treated by distillation. Ferro-silicon aluminum alloys may be treated with the addition of iron or silicon in combination with the process described in Specification 532,115.
Patent GB-878930-A (GB)
Title: Improvements in or relating to counterrotating gear transmission
IPC: F16H37/00
Filed: 1959-04-20
Abstract: 878,930. Change-speed and reverse gear;  friction clutches. GERST, C. April 20, 1959 [May 19, 1958], No. 13436/59. Class 80 (2). [Also in Group XXXI] Gearing for a tractor comprises an input shaft 10 driving through a two-speed constant-mesh countershaft gear having selectively engageable hydraulically controlled multi-disc ratio establishing clutches 24, 26 to a shaft 22 carrying gears 76, 78 selectively meshed by a double gear 72 sliding upon a shaft 70 to give a further two speeds, a gear 80 splined upon the shaft 70 meshing a gear 82 splined upon a parallel shaft 28. The end 12 of the shaft 70 can be used as a power take-off shaft: Forward and reverse gears 86, 84 are selectively coupled to the shaft 70 by ratio establishing hydraulically controlled multi-disc clutches 90, 88, and forward and reverse gears 92, 94 are similarly coupled to the shaft 28 by selectively engaged ratio establishing hydraulically controlled multi-disc clutches 96, 98, the two gears 84, 92 both meshing a gear 100 (shown out of plan in Fig. 3) on a shaft 30 and the two gears 86, 94 meshing a corresponding gear 102 on a parallel shaft 30. Bevel gearing 38 connects the two shafts 30 to coaxial output shafts 32 driving through reduction gearing and through chains and sprockets (not shown) to the tracks or road wheels of the tractor. Brakes 40 can be applied to station the two shafts 30. The arrangement is such that either both road wheels can be driven forwards or backwards at the same time; or one can be driven forwards or backwards while the other is stationary, or one can be driven forwards while the other is driven backwards. Each of the ratio establishing clutches is similar to the clutch 26, which comprises a drum 50, Fig. 4, secured to the shaft 22 and connected by multi-discs 54 to the hub 52 of the gear 46, springs 58 biasing a ring- shaped piston 56 to the disengaged position, but the admission of fluid under pressure through ducts 62, 64 and through shaft ducts (not shown) to a cylinder 66 moving the ring- shaped piston against the bias of its springs to engage the clutch.