baber/WOPTO huggingface dataset:
Patent GB-796316-A (GB)
Title: Direction-sensitive binary code position control system
IPC: G05B19/29
Filed: 1954-09-28
Abstract: 796,316. Electric selective signalling. BENDIX AVIATION CORPORATION. Sept. 28, 1954 [Oct. 2, 1953], No. 28002/54. Class 40 (1). An object is positioned along a closed path along which a number of discrete positions are designated by numbers expressed in binary code, the sense of movement corresponding to the shorter distance of travel from the actual to the desired positions being automatically selected. In one embodiment, a shaft 20, Fig. 1, is to be rotated into any one of sixteen positions represented by the four-digit conventional binary numbers 0000, 0001, 0010, &c., Fig. 4. Rotation is effected by a reversible motor 21 having clockwise and counterclockwise input busses MR, ML, respectively, which are selectively connected by circuit 24 to a current source 23. The actual angular numerical position of the shaft 20 is set up on relays PR1 ... PR4, which are energized from source 34 through the contacts on a coding switch 25, rotating with the shaft 20, and brushes 30 ... 33. The " ordered " numerical position is set up on relays OR1 ... OR4 over signal lines L1 ... L4 from the transmitter, which may comprise a shaft having a coding switch such as 25. In one arrangement of the relay contacts in circuit 24 they fall into groups A ... D, Fig. 2, comprising the contacts of pairs of relays PRI, OR1, ... PR4, OR4, respectively, which in the upward position represent the digit O and in the downward position the digit 1. If the first digits of the actual and ordered numbers are the same the source 23 is connected to the output K of group A and, if they are different, to output L, these outputs forming the inputs of group B. Groups B, C and D are similar and compare in pairs the second, third and fourth digits of the actual and ordered numbers. For example, in group B if the second digits are the same inputs K and L are connected to outputs K and L respectively. When K is energized it is connected to the bus MR to energize the motor 21 clockwise if the digits are 01 and to the counterclockwise bus ML if the digits are 10. When L is energized, digits 01 connect it to ML and digits 10 to MR. The motor and shaft are thus driven to the ordered position by the shortest route until all the compared digits coincide when the source 23 is connected only to one of the terminals STOP to energize a motor brake or indicator lamp L.
Patent GB-189104-A (GB)
Title: Improvements in waterproof coating compositions
IPC: D06M13/08
Filed: 1922-10-16
Abstract: 189,104. Schmidt, A., (Assignee of Schmidt, C.). Nov. 16, 1921, [Convention date]. Varnishes; polishing-compositions.-Chlorinated mineral wax (other than ozokerite) is used as an ingredient of coating compositions. It may be used alone in solution or mixed with oils, pigments, other waxes, resins, and hydrocarbons. Specification 9023/11, [Class 91, Oils &c.], is referred to. Reference has been directed by the Comptroller to Specification 18818/11.
Patent GB-299607-A (GB)
Title: Fastening devices for field gates and such like
IPC: E05C19/10
Filed: 1927-10-21
Abstract: 299,607. Singleton, E. Oct. 21, 1927. Hook fastenings for field-gates &c. are provided with a counterbalanced plate pivotally mounted on the staple c engaged by the book a so as to tilt to the position shown in Fig. 3 to allow insertion of the hook and return to the position shown in Fig. 1 to prevent accidental withdrawal of the hook by engagement with a projection or upturned portion a<1> on the hook. This portion may be shaped as shown to provide an eye to receive a padlock. The plate is shaped at d<1> to prevent its assuming a vertical position, and the end of the plate may be forked to embrace the sides of the hook. A modification is described in which the hook is at right-angles to the plate of member c. The parts may be attached to the gate and post by screws, or may have spikes to be driven in.
Patent GB-453559-A (GB)
Title: Improvements in the process for permanently waving keratin containing fibres
IPC: A61Q5/04
Filed: 1934-12-03
Abstract: A process for applying a permanent wave to keratin fibres (including human and animal hair and wool) in which there is a metal compound (as from a dye) capable of interfering with the waving treatment comprises subjecting the fibres to a preliminary treatment with a reagent for converting the metal into a sulphide, then removing the reagent with an acid and thereafter subjecting the fibres under acid or neutral conditions to a moist heat treatment at about 100 DEG  C., as is usual in permanent waving.  In a modification, the fibres may be treated with hydrogen sulphide or with sulphur in the form of a solution or colloidal suspension and then the fibres are subjected to acid or neutral conditions as before.  In another modification the solution of sulphur employed is one in a mixed solvent comprising a solvent for the sulphur and a swelling agent for keratin.  In another modification, the reagent employed contains metal sulphide, soluble polysulphide or hydro-sulphide.
Patent GB-1332277-A (GB)
Title: Method of making a semiconductor device
Inventor: LAKER A
IPC: H01L21/3213
Filed: 1972-06-15
Abstract: 1332277 Semi-conductor devices RCA CORPORATION 15 June 1972 [23 June 1971] 28159/72 Heading H1K In the manufacture of a semi-conductor device a patterned layer of polycrystalline ptype Si is provided on an insulator 16 by diffusing a p-type dopant into portions 28 of a continuous, preferably intrinsic, polycrystalline Si layer 20 on the insulator 16, and then removing the undoped portions of the layer 20, preferably using an etchant which selectively attacks Si rather than p-type Si. Suitable etchants are disclosed. The insulator 16 may be a layer of SiO 2  on a monocrystalline Si substrate 12, in which case the polycrystalline Si pattern may constitute the gate of an MOS device or an interconnection structure for an integrated circuit. Boron is the preferred dopant for the portions 28, being diffused therein from a borosilicate glass layer 26 through a window in a SiO 2  masking layer 22.
Patent GB-1073234-A (GB)
Title: Mixed polymeric materials in powder form, and process for their manufactrue
Inventor: SMITH ROBERT LEWIS
IPC: C08F291/00
Filed: 1964-07-08
Abstract: Graft polymers in powder form are made by stirring a liquid monomer capable of vinyl polymerization (i.e. a monomer which will homopolymerize), together with a polymerization catalyst, into an aqueous dispersion of particles of a thermoplastic polymer of maximum diameter 500 microns in the presence of an emulsifier to form droplets of the monomer in dispersion, the proportion of emulsifier being less than that required to form a stable dispersion in the absence of stirring, all the polymer particles are maintained non-aggregated by continued stirring until the monomer is absorbed into the polymer particles, and the mixture is heated to polymerize the monomer in the polymer particles.  The thermoplastic polymer may be polyethylene, polypropylene, polyvinyl chloride or nylon.  The liquid monomer may be styrene (together optionally with ethyl acrylate) or 2-ethyl hexyl acrylate and may contain a polyethylene of molecular weight 1000-5000. The emulsifier may be sodium lauryl sulphate and the catalyst may be benzoyl peroxide. The dispersion may contain a protective colloid, e.g. hydroxyethyl or sodium carboxymethyl cellulose, polyvinyl alcohol or sodium alginate.
Patent GB-946427-A (GB)
Title: Improvements in and relating to rolling mills
IPC: B21B31/10
Filed: 1961-08-03
Abstract: 946,427. Rolling. UNITED ENGINEERING & FOUNDRY CO. Aug. 3, 1961 [Aug. 18, 1960], No. 28218/61. Heading B3M. A rolling mill is provided with windows such that one or both rolls, together with their bearings and chocks, can be shifted axially through said windows, a roll changing device being provided which consists of roll unit having means on one side of the mill and a roll unit supporting turntable on the other side of the mill. To replace rolls 16 and 17 together with their chocks the screwdowns 27 and 28 are loosened, blocks 32 are removed and a cylinder 29 is actuated to raise the chocks 25 and 26 of an upper back-up roll 23 by means of arms 14, Fig. 4, the work rolls 16 and 17 being lifted in turn by feet 39 on the chocks 25 and 26. The roll 17 is held within arms 35 of the chocks of the roll 16 so that the rolls move as a unit. Driving pinions 54 and 55 are raised by a cylinder 61, and then arms 53, extending on both sides of a pinion stand 56, are driven through a rack 64 and pinion 65 to shift the working rolls to the left. The rolls first slide on the feet 39 of the chocks 25 and 26 and then roll on wheels 47 and 48 on to a turn table 71, the arms 53 supporting the chocks 21 on projections 69, Fig. 8. The turntable is revolved by a motor driven pinion 73 until a groove 77 is in line with a groove 82 so that the flanged wheels 48 of the new roll unit can be guided as before. Hooks 66 on the ends of the arms 53 are engaged with the roll unit, using a cylinder 67, and the arms are retracted to move the roll unit into position. A similar arrangement is described in relation to a two-high mill but in this case the roll unit slides on a sled until wheels of the sled co-operate with the supporting apparatus. A new roll unit including a sled element can then be replaced in the mill. In this case the piston cylinder assembly for roll changing can also be used for shifting the roll stand. The shifting arms of the piston cylinder assembly are locked by pins to the pinion housing and the stand is moved laterally on supporting rails, the stand first having been unclamped from these rails.
Patent GB-952149-A (GB)
Title: Clay cracking catalyst
IPC: B01J21/16
Filed: 1962-07-23
Abstract: A process for preparing cracking catalysts from clay comprises treating a suitable clay with enough of a sodium compound capable of decomposition on heating to release sufficient sodium ions to form a sodium, alumina, silica complex, the sodium compound being such that hydrated silica can be released from the complex by subsequent acid treatment, and heating the clay to a temperature at which the sodium compound is decomposed, treating the product with a quantity of strong mineral acid sufficient to destroy the complex while simultaneously gelling the silicate and reducing the alumina, adding a quantity of sodium silicate equivalent to 10-50% SiO2 by weight of the clay, adding a basic precipitant to precipitate the alumina as hydroxide, filtering the resulting mass, drying, treating the dried filter cake with a mineral capable of removing sodium by base exchange, washing and redrying.  Preferably the clay is treated with hydrated sodium carbonate.  Examples are given.
Patent GB-479621-A (GB)
Title: Improvements in and relating to electromagnetic control devices for circuit interrupters and switches
IPC: H01H33/985
Filed: 1936-10-17
Abstract: 479,621. Electromagnets. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 17, 1936, No. 28276. Convention date, Oct. 17, 1935. [Class 35] [Also in Group XXXVII] An electromagnet core 10 of soft-iron laminations comprises a readily - saturable part 13 of small crosssection, and a part 14 of large cross-section having an air-gap 14<1>. A coil 15 embracing a limb of the core is mounted on an insulated rod 17 slidable in the core and carrying a contact 18. With low currents in the coil the flux is confined to the path 13 and does not traverse the gap, and the coil is consequently moved so that contact 18 closes the circuit of a minimum-current indicator G. With large coil-currents, path 13 becomes saturated and an increase of flux in the gap occurs, so that the coil is moved towards the gap and contact 18 energizes a maximum-current indicator R. Light springs 15<11> centre the coil.
Patent GB-633350-A (GB)
Title: Device for sharpening tailors' chalk
IPC: B43L23/06
Filed: 1946-09-20
Abstract: 633,350. Pencil &c. sharpeners. RINOLDI, E. Sept. 20, 1946, No. 28292. [A Specification was laid open to inspection under Sect 91 of the Acts, Dec. 28, 1946.] [Class,146 (iii)] A device for sharpening tailors' chalk comprises a base 15 on which a number of blades 5, 51 are supported, bolts 13, 14 to fasten the blades in spaced relationship in two groups forming a V-shaped channel A, B, C therebetween, a box-like cover 16 enclosing the whole assembly and provided with a slot 11 above the channel, and grooves in the sides of the cover to receive the ends of the bolts 13, 14. The lower bolt 14 also passes through a central lug 18 upstanding from the base 15 to secure the blades in position in the device. A drawer may be incorporated below the base to collect chalk filings in which case the base 15 is perforated to allow the filings to fall through. The Specification as open to inspection under Sect. 91 comprises also blades that are secured by bolts passing right through the sides of a box which contains a drawer to collect the chalk filings. In a larger model for table mounting the sides carry supporting shelves for the chalk and in a further modification small boxes are attached to the sides to store the chalk when not in use. This subjectmatter does no appear in the Specification as accepted.
Patent GB-1451174-A (GB)
Title: Oscillation exciters
IPC: B06B1/16
Filed: 1974-06-26
Abstract: 1451174 Vibratory roller KOEHRING GmbH-BOMAG DIVISION 26 June 1974 [25 July 1973] 28360/74 Heading A1B [Also in Division F2] A vibration generator for use for example in vibratory ground rollers comprises at least one rotatably mounted container, the interior of which is divided into two chambers, means for rotating the container, and means for injecting liquid selectively into either one of the chambers and means for venting from the other chamber an equal quantity of liquid as it is injected into the one chamber while the container is rotated to adjust the liquid contents of the two chambers relatively to each other to cause the container and liquid contained in its chambers to form an unbalanced mass, the imbalance of which can be increased or decreased without stopping rotation of the container. In the embodiment shown in Figs. 3 and 4, a hollow rotary shaft 1 of a vibratory ground roller is surrounded by a cylinder 30 containing a rotary-vane piston 20 rotatable on the shaft 1. The piston 20 can if desired be connected to the cylinder 30 through a torsion spring (not shown). The rotary vane of piston 20 projects radially outwards from a bush rotatably mounted on the shaft 1 and into outer end slides over the inner surface of the cylinder 30, while a stationary vane projects radially inwards from the inner surface of the cylinder 30 and its inner end slides over the outer surface of the bush. The two vanes between them form cylinder chambers A and B. When the vanes are as shown in Fig. 3, their masses counterbalance each other. In order to form an out-of-balance mass liquid is delivered to one of the chambers A or B and vented from the other to rotate the rotary vane, the greatest degree of unbalance being obtained when the two vanes are side by side in contact with each other. Liquid is supplied to the chambers A and B by a pump 21 through hydraulic lines 22, 23 respectively. and through other lines (not shown) forming a circuit which includes a control valve 24, housed within the shaft 1 alongside the pump 21. The valve 24 is actuated by a control spindle 25 coaxial within the shaft I and inside a hollow spindle 26 which drives the pump 21 through a gear train 28. Spindle 26 rotates in bearings in a connecting piece 27 mounted inside the shaft 1. When the pump 21 is operating, it delivers liquid through the valve 24, which liquid either flows through lines 22, 23 to one or other of the two cylinder chambers or returns to the hollow rotary shaft 1 which acts as a liquid reservoir. As the shaft 1 rotates the liquid distributes itself evenly over the inner surface of the shaft and is driven into the pump 21 through its inlet opening which is close to the inner surface of the shaft, by centrifugally developed pressure. In alternative embodiments, the rotatably mounted container is divided into two chambers by a reciprocative piston (Fig. 1, not shown) and by a fixed wall (Fig. 5, not shown).
Patent GB-226342-A (GB)
Title: Improvements in valve mechanism for internal combustion engines
IPC: F01L1/12
Filed: 1923-11-12
Abstract: 226,342. Poppe, P. A. Nov. 12, 1923. Valve gear.-Overhead inlet and exhaust valves are actuated by cams on a shaft D in a casing B at the side of the cylinder heads, one valve being actuated by a rocker E, and the other by a push-rod J and rocker F. Separate cams may be provided, or a single cam may serve both valves. The rod J extends through a guideway which may be formed in the cylinder head or may comprise a separate tube secured therein. The cam shaft may be at the side of the cylinder bodies, in which case the rods J would pass between adjacent cylinders or through their water jackets. The two valves may be arranged in a plane inclined to the longitudinal axis of the engine.
Patent GB-227568-A (GB)
Title: Improvements in carrier wave transmission systems
IPC: H04L5/06
Filed: 1923-11-12
Abstract: 227,568. Western Electric Co., Ltd., (Western Electric Co., Inc.). Nov. 12, 1923. Multiplex signalling. - The several wave generators O<1>, O<2> are associated with selective circircuits 10, 13, each tuned to the frequency of the corresponding generator, and the circuits 10, 13 are connected jointly as the input of an amplifier 17 having its output coupled to the line 1. A resistance 14 is connected across the two circuits 10, 13 and tappings are taken from three points on this resistance to the input electrodes of a push-ball amplifier 17. Signals are produced by keys 9 controlling switches 7 in the high-tension circuit of the oscillators O<1>, 0<2>, or by modulating microphones. The receiving-circuit 22 is coupled to the line 1 in the usual way so as to be unaffected by the transmitted currents, and is connected through amplifiers A<1>, A<2> to a number of selectively-tuned circuits 24, 25 coupled to separate detectors D. The system may be used for repeating between an ordinary telegraph cable, connected for duplex working, and the line 1. For this purpose the receiver of the telegraph system controls the key 7 or 9, or controls a short circuit across the grid and filament, of one of the oscillators 0, and the relay R of one of the detectors D serves as a transmitting relay for the telegraph line. Single-valve amplifiers may replace the push-ball valves 17, A<1>, A<2>. Filter circuits may be used instead of the balanced transformer 22, different frequency bands being used for reception and transmission respectively.
Patent GB-253418-A (GB)
Title: Improved means for automatically relieving the pressure on the rollers of rubber mills or other pressure members when the same are subjected to undue stress
IPC: B01F35/60
Filed: 1925-11-12
Abstract: 253,418. Spencer, Moulton, & Co., Ltd., G., Abbott, W. E., and Elgey, J. R. Nov. 12, 1925. Breaking-pieces for relieving strain on the rollers of rubber mills or other pressure members. A fragible body normally closes an outlet passage from a chamber filled with grease or other suitable medium or liquid that is compressed by movement of the roller or pressure member consequent upon the same being subjected to undue stress. The frangible body broken to allow the escape of the grease &c. upon the pressure exceeding a predetermined pressure. A removable threaded bush 2 in which the roller-adjusting spindle 1 works is bored at its inner end to form a cylinder 4 within which is fitted a plunger 5 that bears at its outer end on the bearing of the roller. The inner end of the spindle 1 bears against a short piston or block 7 having a recess 11 in its face to carry a frangible disc 12 of cast iron, glass, &c. that closes an axial hole 9 in the piston. Cup leathers 6, 8 are fitted to the plunger 5 and piston 7, the leather 8 having a central hole in alinement with the hole 9 and the axial hole 10 in the spindle 1. The space between the plunger 5 and block 7 is filled with grease &c. When undue pressure is exerted on the plunger 5 in an inward direction, the frangible disc 12 will be broken and the grease &c. will be forced through the hole 10 thereby releasing the mill rollers from pressure. The distance between the leathers 6, 8, is such that when the disc 12 is fractured the plunger 5 can move inwardly sufficient to enable the gear wheels on the ends of the rollers to move out of mesh.
Patent GB-243705-A (GB)
Title: Pneumatic tyre
IPC: B60C9/00
Filed: 1925-11-12
Abstract: 243,705. Baudonnel, V. C. Nov. 25, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Jackets and covers. - A tvre foundation comprises textile cords a, b arranged singly or in groups, of alternately left and right-hand twist.
Patent GB-523247-A (GB)
Title: Improvements in or relating to tanks or reservoirs
IPC: B64D37/02
Filed: 1938-10-03
Abstract: 523,247. Tanks. ANDRE RUBBER CO., Ltd., T. B., and GILLETT, T. Oct. 3, 1938, No. 28639. [Class 69 (i)] A tank comprises a metal frame and sheet metal panels, the panels being bonded to the frame members by interposing a layer of natural or synthetic rubber and vulcanizing. The frame includes a central, square, T-section member A, L-section members B welded to the corners of member A, and square L-section end members C. The contiguous surfaces of the frame and panels D are prepared for vulcanizing such as by coating with brass, the rubber is applied and the panels may be riveted to the frame. The whole tank is then heated.
Patent GB-483658-A (GB)
Title: Closures for bottles, jars or other containers, and containers intended to be closed by said closures
IPC: B65D55/02
Filed: 1936-10-22
Abstract: 483,658. Closures for bottles. MAREK, A. J., and LIVINGSTON INDUSTRIAL DEVELOPMENTS, Ltd. Oct. 22, 1936, No. 28740. [Class 125 (iii)] A closure 2 for bottles &c. has a downwardly extending skirt portion 5 which is integral therewith or rotatable relatively thereto, and which contains a locking annulus 6 which is anchored at one end 7 and which engages, dwells or indents 10 in the closure. When the skirt 5 is rotated relatively to the bottle neck these indents ride in inclined portions of the annulus, and produce a radial locking pressure. The mouth of the bottle &c. has an inward taper on the exterior, to ensure that the closure is drawn downwardly into the locking position.
Patent GB-248441-A (GB)
Title: Improvements in or relating to machines for and methods of handling work pieces
IPC: B23Q3/154
Filed: 1924-12-01
Abstract: 248,441. Imray, O. Y., (Blanchard Machine Co.). Dec. 1, 1924. Magnetic work-holders; processes, special.-In a grinding machine in which the work 92 is supported on a magnetic work-holder, the magnets and the work holder are so arranged that the ink is held magnetically during its passage beneath the grinding-tool 8 and is released, for removal and replacement, upon issuing from beneath the grinding-tool. The work-holder is rotatably mounted on an annular support 18 and comprises a gear 20 carrying a ring 22 of non-magnetic material to which is secured a body 24 of magnetic material, and within the body are mounted, upon the support 18, stationary magnets 38, which occupy approximately one half of the circumference of the chuck. The face of the body has radial grooves 50 and annular grooves 52 filled with non-magnetic material and the body has therein slots 56, 58 to assist in localization of the magnetic zone; non-magnetic rings 60, 62 serve to strengthen the body. In order to assist in releasing the work as this passes into the non-magnetic zone, a magnet 78 is provided, wound to produce a polarity opposite to that of the other magnets; the field of the magnet is controlled by a resistance and a rheostat, and the magnet is adjustable around the axis of the work-holder.