baber/WOPTO huggingface dataset:
Patent GB-885880-A (GB)
Title: Improvements in or relating to magnetic shift registers
IPC: G11C19/04
Filed: 1958-07-04
Abstract: 885,880. Circuits employing bi-stable magnetic elements. PHILIPS ELECTRICAL INDUSTRIES Ltd. July 4, 1958 [July 9, 1957], No. 21495/58. Class 40 (9). [Also in Group XIX] In a shifting register operated by alternating pulses from a source GR and comprising two series of identical magnetic cores A, C, E, G and B, D, F, the material of which has a rectangular hysteresis loop, groups of core windings WA2-WG2, WB-WF and WA1-WG1 are respectively formed with different numbers of turns which reduce in that order and are connected so as to provide paths for unidirectional current pulses applied over rectifiers GA1, GA2-GG1, GG2, each path consisting of two series-connected windings such as WA2, WB and WB, WC1, the number of turns of which differ. The register utilises the principle that when two identical cores having different numbers of winding turns are connected in series, it is necessary for the core with the larger number of turns to saturate with a particular polarity before the current in the series path can rise to a value sufficient to influence the magnetization of the second core. In the arrangement shown, binary information is registered by core A during the negative halfcycles of the supply GR and is stepped progressively along the core group A, C, E, G by way of the second group B, D, F. In operation, the positive half-cycle through windings such as WA2, WB drives the associated core A to state 1, bore B then goes from state 0 to state 1 only if the former core was initially in state 1, since B has fewer turns than A. During the negative half-cycle which follows, core C is driven to state 0 only if B is in the same state, since in this case winding WC1 has fewer turns than WB. Similar operation takes place throughout the register and a final output is obtained from winding WG2. It is stated that separate positive and negative generators may alternatively be used.
Patent GB-907160-A (GB)
Title: Electrical positioning control system having an extended working zone
IPC: G05B19/35
Filed: 1960-06-20
Abstract: 907,160. Electric selective signalling systems. GENERAL ELECTRIC CO. June 20, 1960 [July 31, 1959], No. 21544/60. Drawings to Specification. Class 40 (1). A follow-up system is characterized in that it has means to bring the controlled object sufficiently close to the desired position before control is effected by the desired position signal whereby when control is effected by the desired position signal unambiguous positioning results. The system described is a modification of the selsyn follow-up system described in Specification 801,009 which is referred to. In this system four selsyns have their rotors coupled together by 10 to 1 reduction gears, voltages representing a desired position are applied to the stators of the selsyns and the " error " voltages induced in the rotors are used to control a motor which repositions the rotors and reduces the error signals to zero. This system has the disadvantage that no desired position must differ by too much from the actual positions of the rotors, since if it does the highest order selsyn may approach it in the wrong direction, which would result in the selsyn rotor reaching a position one revolution removed from the desired position, and this though not important for a pure rotational system is important where a member is being moved linearly by the shaft geared to the selsyn rotors. The present invention overcomes this difficulty by arranging that the switch which selects the desired position voltage for the highest denominational selsyn also selects a further voltage and the further voltage is so related to the desired position voltage that if the desired position does differ from the actual position of the selsyn rotors by too much the position that corresponds to the further voltage will not. In operation, the further voltage is first applied to the highest denominational selsyn and if it produces an error signal above a certain level it is used to control the motor. When the error signal has been reduced to below the certain level the further voltage is removed and replaced by the actual desired position voltage which then exercises control in the usual way. Thus in effect each displacement of the system is split into two displacements.
Patent GB-295130-A (GB)
Title: Improvements relating to invalid chairs
IPC: A61G5/02
Filed: 1927-08-16
Abstract: 295,130. Richards, O. O. Aug. 16, 1927. Folding &c. vehicles.-Folding invalid chairs are provided with self-propelling means which is arranged and adapted to be folded with the invalid chair. The propelling means comprising chain g and sprockets e, h is carried by a double arm c pivoted on or adjacent to the back axle and held in position suitable for the rider by a bar i and nut j. The arm c is turned to a position parallel to the rear side member of the chair when it is desired to fold up the invalid chair as shown in Fig. 3. In the form shown in Fig. 4 two driving chains g and hand wheels f are used one at each side and the arms c are, held by struts m which may be proportioned so as to permit of the chair folding without unclamping the strut m or it may be pivoted to a short member n which is pivoted to the rear side member at o.
Patent GB-698584-A (GB)
Title: Improvements in or relating to holders for sheets, cards, licences and the like
IPC: B60R13/10
Filed: 1951-09-14
Abstract: 698,584. Licence holders. ZELL, M. Feb. 11, 1952. [Sept. 14, 1951] No. 21594/51. Class 73. A licence or like holder comprises a ring 10 of highly polished polyvinyl chloride sheet or similar material which will adhere to glass without additional adhesive and a disc 11 of highly polished sheet which will adhere to the ring 10 preferably also of polyvinyl chloride but celluloid, metal or glass may be used. Tabs 12 are provided on the ring 10 to hold the licence in the frame thus formed. A finger hold may be provided to allow the disc 11 to be stripped from the ring 10.
Patent GB-1276474-A (GB)
Title: Prevention of caking of powdered sugar
IPC: C13B50/00
Filed: 1971-04-19
Abstract: 1276474 Sugar SANKYO CO Ltd 19 April 1971 [18 Feb 1970] 21641/71 Heading A2B A non-caking powdered sugar contains invertase.
Patent GB-1003282-A (GB)
Title: Improvements in and relating to bearing structures
IPC: F16C17/18
Filed: 1961-09-04
Abstract: 1,003,282. Plain bearings. SCHWITZER CORPORATION. Sept. 4, 1961 [Sept. 26, 1960], No. 31650/61. Heading F2A. A plain bearing assembly for high speed shafts comprises a journal 17 carried in two axially spaced bushes 22, 23 in journal boxes 19 and 20, respectively. Radial clearance is provided between each bush and the journal and between each bush and its respective journal box. The bush 22 is retained axially between a combination of thrust washers 25 to 27 at one end and a snap ring 32 at the other. The bush 23 is similarly retained at the other end of the housing between a thrust washer 35 and ring 36. Lubricant is fed under pressure into the chamber 40 in the housing 18 where it provides a pressure film in the clearances between the journal, bushes and journal box and also an axial force on the ends 22a, 23a of the respective bushes which is carried by the thrust washer assemblies. The lubricant further promotes a drag or resisting torque to prevent excessive rotation of the bushes in their respective journal boxes which results in the shaft journal 17 rotating at a high speed in the bush and the bush rotating at a low speed in the journal box. This action provides a means of self damping shaft vibrations and reduces the shaft whirling action at high speeds.
Patent GB-397661-A (GB)
Title: Improvements relating to shielding the ignition systems of internal combustion engines
IPC: H04B15/02
Filed: 1932-08-03
Abstract: 397,661. Casings. MASCUCH, J. J., 24, South 6th Street, Newark, New Jersey, U.S.A. Aug. 3, 1932, . No. 21742. [Class 36.] An electrical shielding device for the ignition system of internalcombustion engine comprises a rigid metal conduit 25 connected by flexible metal conduits 103, 104 to shields 116 enclosing the magnetos and provided with flexible metal conduits 41 for attachment to the spark plugs. The conduit 25 may be made in two pieces connected by a screw collar 28. The conduits 41 are secured to junction pieces 33 on the conduit 25 by screw collars 42, Fig. 8, co-operating with conical rubber washers 54 and ferrules 50 on the ends of the flexible conduits to form a moisture-tight joint. Similar joints secure the other ends of the conduits 41 to shields 67 for the spark-plugs. An alternative form of spark-plug shield is shown in Fig. 10. It consists of a metal cup 70 with a rim reinforced as shown having a cap 78 of insulating material with a metal coating 79. The conduit 41 is secured to the cap 78 by a screw connection shown and the conductor passes through the cap to make contact with the point of a screw 89 connected with the head of the spark plug by a spring 91. Skirts 93 on the cap 78 hinder sparking between the head of the spark plug and the cup 70, which is further prevented by filling the cup with petroleum jelly. The cap 78 is held in place by a wire bail. Fig. 14 shows the construction of the flexible conduits. A strip of aluminium of S-shaped section is coiled into a continuous interlocking spiral, the joints being packed with asbestos cord 46 which may be impregnated with graphite. Over the tube thus formed is disposed a braided cover 48 of tinned copper wire and over this a shield 49 of braided strips of phosphor bronze &c. In an aeroplane engine the conduit 25 may be disposed between the engine and the propeller. Further flexible conduits 127 connect the magnets screens 116 to a starting or booster magneto 128 and a switch 129.
Patent GB-169063-A (GB)
Title: Improvements in electrical apparatus for the electro chemical treatment of hydrocarbon vapours
IPC: C10G15/00
Filed: 1920-07-20
Abstract: 169,063. Cherry, L. B. July 20, 1920. Gases, treating with electric discharge; induction and resistance furnaces.-Apparatus for the treatment of hydrocarbon vapours comprises a still 1 and a condenser 2 connected through a strongly heated treating chamber in which the vapours &c. are subjected to a high-frequency discharge. The treating chamber may consist of tubes maintained at red heat. As shown, the tubes 6 are connected near their upper ends by means of T-pieces 10, and their lower ends consist of four-way pieces 12, one branch of each being secured to a curved connecting tube 13, another to a pedestal 7, and the other horizontal branch being closed by a plate 12a which, like the curved tube 13, is removable for cleaning &c. A valved outlet may be provided in the pedestal. A thin axial wire forming the inner electrode passes through an insulator 9 at the top of each tube 6 and is stretched by an insulating weight 17. The tubes 6 may be electrically interconnected or earthed, and the wires connected to alternate leads 18, 19 of the oscillation circuit. Around each tube 6, which may be of iron or steel, is a copper or other solenoid 15, preferably embedded in refractory non-conducting material. and serving to heat the tube by induction. The heating current may be regulated by an auto or ordinary transformer 22, the secondary connections of which are controlled by a rotary switch 24; the character of the product is thus varied. Beneficial results are said to be obtained' by reason of the non-uniform heating of the tubes. Hydrocarbon vapours may be generated in the still from the residue of crude mineral or other oil after distillation of the crude benzene. They may be passed without admixture through the discharge apparatus, for cracking or for the production of aromatic hydrocarbons; any free carbon formed is carried off by the vapour. Alternatively, the hydrocarbon vapours may first be mixed with steam or free hydrogen or a gas containing it, such as natural or coal gas, or with a mixture of steam and the hydrogen-carrying gas, passed through the oil in the still by means of a perforated pipe 28. Hydrocarbons, having a higher percentage of hydrogen are thus obtained. When steam is used, carbon monoxide is obtained instead of free carbon, and may be burnt under the still. Vapour may be treated under high pressure. If the liquid in the still is just below its boiling- point the rate, of flow of the vapour can be regulated by varying the supply of gas or steam. Pyrometers 35 may be provided at various points as shown. Specification 104,330, [Class 1 (i), Chemical processes &c.], is referred to.
Patent GB-953924-A (GB)
Title: Methods of moulding plastic sheet materials
Inventor: HAZELL HUGH ROGER
IPC: B29C44/14
Filed: 1961-06-16
Abstract: 953,924. Moulding flat plastic sheet materials. THERMO PLASTICS Ltd. June 14, 1962 [June 16, 1961; Oct. 12, 1961], Nos. 21757/61 and 36583/61. Heading B5A. In a method of moulding plastic sheet materials a sheet of polyvinyl chloride is formed on to a male mould, after which a spaced female mould is fitted round the formed article whilst still on the mould, and a thermosetting resin containing a foaming agent is introduced into the space between the female mould and the male article and is shaped round the formed article. The thermosetting resin is hardened and foamed by using the heat of the article which is formed on to the male mould by either pressure or vacuum and heat.
Patent GB-173004-A (GB)
Title: Improvements in and relating to the production of butyric aldehyde and butyric acid therefrom
IPC: C07C45/00
Filed: 1920-07-20
Abstract: Butyric aldehyde is obtained by passing the vapour of normal primary butyl alcohol over the copper catalysts described in Specification 166,249.ALSO:The vapour of normal primary butyl alcohol is passed over the copper catalysts described in Specification 166,249, [Class 1 (i), Chemical processes &c.]; the products are condensed and fractionated and the aldehyde is oxidized to butyric acid by treating it in the liquid state with air or oxygen in the presence of a catalyst such as manganese butyrate.
Patent GB-495219-A (GB)
Title: Improvements relating to the spring suspension of motor road vehicles
IPC: B60G11/04
Filed: 1937-08-07
Abstract: 495,219. Vehicle spring-suspensions; chain &c. distance members. COLLINS, C. M., and HENDERSON, W. M. Aug. 7, 1937, No. 21781. [Class 108 (ii)] [Also in Group XXXI] The stub axle 7 of a wheel 6 of a motor road vehicle is carried by a housing 8 enclosing a driving chain 4 and journalled for oscillation about the shaft 1 of a driving sprocket 3, a guide member rigid with the chassis co-operates with the free end of the housing to restrain the wheel against lateral displacement, and a spring is connected between the same end of the housing and the chassis. As shown, the guide member comprises a channel 11 in which the free end 8a of the chain housing slides. A quarterelliptic leaf spring 12 is anchored at 13 to the chassis and coupled at 14 to the chain housing. A friction damper is interposed between the chain housing and the housing 9 of the driving shaft bearing. An additional driven or undriven wheel may be carried by another housing pivoted on the housing 9 and extending in the opposite direction, the opposite ends of the housings being connected to the two ends of a half-elliptic suspension spring.
Patent GB-170404-A (GB)
Title: A carbon monoxide respirator
IPC: A62B19/00
Filed: 1920-07-20
Abstract: 170,404. Levy, L. A., and Davis, R. H. July 20, 1920. Respirators.-In respiratory apparatus for use in atmospheres containing carbon monoxide, the air is passed through a receptacle enclosing layers of oxidizing and drying agents and a cooling- device, and means are provided for detecting any failure of the oxidizer to retain the carbon monoxide. As shown in Fig. 1, the receptacle a is provided with a layer i of calcium-chloride granules, a layer k of oxidizing-agent acting catalytically such as silver oxide with or without manganese dioxide, another drying-layer l, and in the upper compartment c a cooling-box p containing sodium thiosulphate crystals and a layer q of detecting-substance such as that described in Specification 163,102 wherein iodine is liberated when carbon monoxide is passing. In a modified form, the detecting-material q mav be contained in a separate chamber removably attached to the receptacle a. Other forms of detection may be employed. For example, two platinum, wires may be arranged in separate glass tubes through one of which the treated air flows. By passing an electric current through the wires, any traces of carbon monoxide are shown by increased brightness of the wire exposed to them. A further method consists in causing the evolved carbon monoxide to combine with a substance, for example chlorine, so as to produce an irritant gas as phosgene.
Patent GB-685626-A (GB)
Title: Improvements relating to flight conveyors
IPC: B65G53/44
Filed: 1949-08-23
Abstract: 685,626. Steam cocking apparatus. HAPMAN, H. W. Aug. 23, 1949, No. 21850/49. Class 28 (i). [Also in Groups XXVI and XXX] A flight conveyer operating for at least a part of its travel in a conduit is provided with a sealing device interposed in the conduit for engaging the edges of the flights to enable solid material to be conveyed into or out of a chamber containing fluid, said device comprising a liner of elastic deformable material having a passageway therethrough for the conveyer and a chamber formed wholly within the liner adapted to be inflated by fluid pressure to urge the liner inwardly into sealing engagement with the flights. In the embodiment shown in Figs. 1, 2, the sealing device 10 is inserted in a gap between portions 11, 12 of the conduit of a flight conveyer comprising links 32, 33 and flights 40 secured between pairs of plates 38, 39. The device comprises a tubular member 20 provided with a rubber tubular lining member 21 in which is formed a chamber 22 adapted to be inflated by connecting a source of inflating fluid such as liquid or compressed air to a pipe 24 so as to press the inner wall of the member 20 against the flights 40. Tubes 25 embedded in the device are connected to inlet and outlet pipes 17, 27 whereby fluid may be circulated to heat or cool the material being conveyed. In a modification, Figs. 3, 4, the tubes 25 are replaced by rods 59 having their inner surfaces exposed so as to serve as guide tracks for the flights 40. The chamber 22 may be inflated by compressed air or by a flow of any fluid or liquid which is throttled to create a back pressure. This latter is effected by providing a discharge pipe 54 with a throttle valve 56. In an alternative construction, the rods 59 are not exposed, being completely covered by the material of the lining member 21. Fig. 7 shows a conveying system for cooking or heating food comprising a conduit portion 71 having sealing devices 10a, 10b at its ends and being traversed by a flight conveyer having flights fitting loosely in the conduit so that steam or other heat treating fluid can permeate the entire conduit when introduced through a pipe 88. In operation, the sealing devices 10a, 10b are first inflated so as to engage the flight peripheries and steam is then introduced through the pipe 88. The conveyer is then started by energising an electric motor 82 so as to drive the conveyer sprocket 72 anticlockwise. The material to be cooked or heated is fed to the conduit 70 through a hopper 90 and conveyed through the device 10a to the conduit 71 where it is heated until it reaches the sealing device 10b. Here it passes into a conduit 91 to a discharge opening 91a where any material adhering to the conveyer flights is dislodged by a vibrator 92 as described in Specification 678,564, [Group XXX]. As the conveyer continues, it passes through a cleaning device 102 where it is subjected to a blast of steam or hot water. The sealing devices may be cooled as shown in Fig. 1.
Patent GB-733909-A (GB)
Title: Improvements in or relating to an axle-counting arrangement for railway signalling installations
IPC: B61L1/16
Filed: 1953-08-07
Abstract: 733,909. Railway axle-counting arrangements. SIEMENS & HALSKE AKT.-GES. Aug. 7, 1953, No. 21860/53. Class 105. For counting the axles passing over respective routes 1, 2, 3, 4, originating at the same switchpoints W 1 or W6 of a track a single axle operated device A or B is disposed in front, as regards direction of travel, of the switch points Wl, W6 and is arranged to be connected to counting mechanisms Z1, Z2, Z3, Z4 individual to each route 1-4 when the route is set as by changeover contact devices 11, 12, 21; 22; or 61, 62; &c.. operated as by switch control levers or relays operated in response to the operation of such levers, or by switch points drives or the switch blades, or by route selecting levers or route selecting relays or by the signal setting means for a route. The devices A, B may be direction-sensitive devices arranged to operate respective driving members a, b of the counting devices which function as counting-in or counting-out mechanisms depending on the direction of travel.
Patent GB-1002289-A (GB)
Title: Transmission arrangement for tractors having hydraulically operated appliances
IPC: B60K17/10
Filed: 1962-06-06
Abstract: 1,002,289. Hydrostatic transmissions; valves. FRANK G. ROUGH CO. June 6, 1962 [June 28, 1961], No. 21876/62. Headings F2C and F2V. An hydrostatic transmission comprises a pair of pumps 14, 15 and a motor 47, with a selector valve 33 for connecting both, or one, of the pumps to the motor, and a relief valve 44 adjusted in response to the pressure developed by the other pump for lowering the relief pressure in the system. The arrangement shown is intended for a tractor with a front-end loader as described in Specification 862,525, the engine - driven transmission pumps 14, 15 being of large and small capacity respectively, and connected in parallel for normal high speed drive of the tractor but only the pump 15 being effective for low speed drive during operation of the loader. The latter includes an engine-driven pump 13 operating hydraulic ram units 34, 35 with a control valve 19 and liquid cooler 27. The selector valve has two spools 61, 62, the former for forward and reverse control and the latter for high and low speed drive. The valve casing also houses the relief valve 44, the closure member 111 of which is loaded by springs 106, 107, the latter of which is housed in an annular piston 105 in communication by a pipe line 43 with the output side of the large capacity pump 14. When the selector valve is set for low speed drive pump 14 is inoperative so that the pressure at which valve member 111 operates is governed only by the springs 106, 107, but when both pumps are effective during high speed operation the output pressure of pump 14 acts on piston 105 and thus reduces the pressure at which valve member 111 operates. By this means stalling of the engine is prevented when both transmission pumps are receiving substantially full engine power, while the smaller pump and the loader may also operate under full engine power.
Patent GB-373012-A (GB)
Title: Improvements in or relating to pedals or foot-rests
IPC: B62M3/08
Filed: 1931-07-31
Abstract: 373,012. Cycle pedals and foot-rests. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, and SADLER, S., of Dunlop Rubber Co., Fort Dunlop, Erdington, Birmingham. July 31, 1931, No. 21883. [Classes 136 (ii) and 136 (iii).] In a pedal or footrest of the type comprising a rubber &c. block made in one or more pieces and mounted upon a tube through which passes a spindle or bolt, the rubber &c. block 10 is reinforced by a single metal member 11, which is formed with oppositely-extending webs or fins 12 passing into the rubber block, and with a central part comprising oppositely-bent arcuate straps 13 adapted to grip the tube 9. The webs 12 may be provided with perforations 14 to increase the hold of the rubber when the latter is moulded on to the tube and reinforcement. The webs 12 may be strengthened by corrugations arranged transverse to the tube and also, if desired, parallel thereto. In the case of a pedal, ball bearings are arranged at the ends of the tube 9.