baber/WOPTO huggingface dataset:
Patent GB-663206-A (GB)
Title: Improvements relating to helicopters
IPC: B64C27/04
Filed: 1949-01-04
Abstract: 663,206. Helicopters. PENNINE AIRCRAFT, Ltd., and NEALE. J. S. Jan. 4, 1949, No. 154/49. Class 4, A helicopter has four rotors d, e of substantially equal diameters located at the four corners of a rectangle, the length of the shorter sides of the rectangle, which are substantially at right angles to the normal direction of flight, being about 6/10 of the rotor diameter and the length of the long sides being about 9/10 of the rotor diameter, so that the two forward rotors d overlap as do the two rear rotors e. The rotors on one side of the machine rotate in the opposite direction to the corresponding rotors on the other side, the blades on the inward side of each rotor being the retreating blades. Preferably means such as are described in Specification 663,205 are provided for automatically reducing the pitch of the retreating blades relative to that required to equalise lift reactions at all blade roots during translation. Such means may comprise a cyclic pitch change system as described in Specifications 605,561 and 647,744 or other known means. A fuselage a. for the accommodation of passengers and cargo extends along one of the long sides of the rectangle formed by the rotor heads, but is offset inwardly with respect thereto, and a compartment b for power units and fuel tanks, which is of less cross-sectional area than the fuselage a extends along the other long side, such structures being connected together by suitable beams c, the whole being arranged to provide broadly symmetrical lift and drag components about the four rotor systems.
Patent GB-671232-A (GB)
Title: Dust collecting plant
IPC: B07B4/08
Filed: 1950-01-03
Abstract: 671,232. Pneumatic separators. MYARD, J. Jan. 3, 1950 [July 5, 1949 ; Aug. 4, 1949], No. 162/50. Class 117 In an apparatus for de-dusting crushed materials, an enclosed, inclined shoot 3, through which the material falls, has a portion of its bottom wall 4 replaced by a perforated sieve portion 5, and a dust collector 8 is disposed below the sieve portion 5, a suction effect being produced in the collector via a conduit 15 connected to an exhauster 11 which also extracts dust from the shoot 3 through a side wall 9 thereof downstream from the said sieve portion 5, the dust-laden air from the exhauster 11 passing into a separator. As shown, below the sieve portion 5, which is raised above the level of the shoot wall 4, a further sieve 6 of finer mesh is provided, the lower edge 7 of which is also raised with respect to the shoot wall 4. The exhauster 11 connects with the shoot 3 via a screen 13 and a suction conduit 10 merging obliquely with the wall 9, and the collector conduit 15 may connect either with the exhauster discharge conduit 14 in the manner shown so as to induce a suction effect in the collector, or with the suction conduit 10. In the latter case an adjustable throttling gate may be mounted in the suction conduit 10 immediately upstream of the connection with the collector conduit 15.
Patent GB-444357-A (GB)
Title: Improvements in or relating to the carding of writing leads, or the like
IPC: B65D75/54
Filed: 1935-01-03
Abstract: 444,357. Packeting pencil-leads &c. FARRINGTON, H. M., and SHOWELL, T. E., 61, Eagle Street, Red Lion Street, London. Jan. 3, 1935, No. 198. [Class 94 (i)] In packeting leads such as are used in propelling pencils and like articles of stick form, a cardboard blank is doubled at b to provide two side members a<1>, a<2> of unequal length. A series of circular holes c is punched through both thicknesses near the fold b, and leads fare inserted therethrough as shown, for instance, by the apparatus described in Specification 444,356. The sides a<1>, a<2> are adjusted so that the lower ends are flush as shown in Fig. 3, preformed creases d, e causing the tops to assume a triangular formation with the leads parallel to the blank. The blank may be enclosed in a folder similar to that of a match book.
Patent GB-1485181-A (GB)
Title: Manufacture of a titanium component for ziegler-natta cat
IPC: C01G23/02
Filed: 1975-01-03
Abstract: 1485181 Ziegler catalyst component preparation BASF AG 3 Jan 1975 [3 Jan 1974] 201/75 Heading B1E [Also in Division C3] A component for a Ziegler catalyst is obtained by dry milling (a) T:Cl 3 . n AlCl 3  where n=0 to 0.7 and (b) PO m X 3  where m=0 or 1, X is R, oR or NR 2  and R is hydrocarbyl, in a vibratory ball mill at a grinding acceleration of 30 to 80 m.sec<SP>-2</SP> and a molar ratio of (a):(b) of from 1:0.1 to 1:1, wherein (1) the mill has a volume of 2 to 200 litres, (2) the mill is initially charged with 0.1 to 120 kg. of (a), whereupon (3) the material is milled at -50C to -5C while the component (b) is added continuously or in several portions over 2 to 100 hours, whereupon (4) the material is further milled while the temperature is raised to 5 to 60C over 0.1 to 5 hours and then held at this temperature for 1 to 100 hours, and (5) optionally further milling at -50 to -5C for 1 to 30 minutes. Examples refer to the milling of T:Cl 3  . 1/3 AlCl 3  and nBu 3 P under the specified conditions.
Patent GB-1356206-A (GB)
Title: Drying rack
IPC: A47B81/04
Filed: 1972-01-04
Abstract: 1356206 Drying-rack N MANOR 4 Jan 1972 317/72 Heading A4A A rack-assembly 20 for holding a plurality of dishes of other utensils in an enclosure 13' having an open-bottom, comprises a plurality of rails 13 mounted within the enclosure 13', two racks 10 slidably supported on the rails 13 to be movable upwardly or downwardly, into or out of the enclosure 13', a pair of manipulator members 16 each made of springy material and each fixed at its upper end to the rackassembly 20, each member 16 including a latch element 16" engageable with the enclosure 13' to retain the rack-assembly 20 therein and a hand-grip 16' at its lower end to enable a user to flex the members 16 together to disengage the latch elements 16' to allow the rackassembly 20 to be moved downwardly out of the enclosure 13'. A latch member 17 of springy material is fixed with its lower end to one side of the rack-assembly 20 and has a horizontal portion (e) Fig. 7 (not shown) which holds the rack-assembly 20 outside the enclosure 13'. The latch member 17 has lateral extensions (77') which engage with one of the manipulator members 16 so that when the members 16 are swung inwardly the portion (c) is disengaged from the enclosure to allow the rack-assembly 20 to be raised. Each rack 10 comprises a number of U-shaped disc-like elements 1 held together by rods 2 passing through the elements 1 and separating pieces 3, with each rod being secured by nuts 2' at each end. The rack-assembly 20 is suspended from the top of the enclosure by helical springs (15) Fig. 2 (not shown).
Patent GB-585202-A (GB)
Title: A hinged filler cap or closure
IPC: F01P11/02
Filed: 1945-01-05
Abstract: 585,202. Filler caps &c. for petrol tanks &c. CHEW & CO., Ltd., J., and CHEW, S. Jan 5, 1945, No. 458. [Class 125 (iii)] A hinged filler cap or other closure for petrol tanks, radiators or any other containers or components comprises a seating A secured permanently to the container &c. and carrying an interrupted thread A<3> which is engaged by projections G fast to a disc F rotatable on a plate D hinged to the seating A. Steps A<5> on the thread A<3> limit the rotation of disc F, and shallow steps A<6> on the seating A against which projections G are pressed by a spring J lock the joint against movement due to vibration &c. A washer K ensures a tight joint. The device may be made from metal or alloy or a plastic and may be cast, pressed or moulded.
Patent GB-804769-A (GB)
Title: Improvements relating to optical systems comprising a concave spherical mirror and a meniscus-shaped correcting lens
IPC: G02B17/08
Filed: 1957-01-04
Abstract: 804,769. Optical systems. OPTISCHE INDUSTRIE DE OUDE DELFT N.V. Jan. 4, 1957 [Jan. 6, 1956], No. 485/57. Class 97(1) An optical system corrected for spherical aberration comprises a concave mirror and a meniscus shaped correcting lens having spherical external surfaces whose centres of curvature lie near that of the mirror and which is formed of a positive and negative element cemented together, the positive element having a refractive index at least 0.05 higher than that of the negative element and the radius being such that the internal surface is transversed approximately perpendicularly by rays from an axial object point whilst an image of the centre of curvation of one external surface of the meniscus lens is formed by the internal surface at a position situated at or near the centre of curvature of the other external surface. Further correction for spherical aberration can be achieved by adding to the system a conical lens as described in Specification 732,427 whilst correction of the slight chromatic aberration present can be effected by adding to the system a colour correction plate as described in Specification 784,435. Numerical data are given for one example of the system shown which comprises a colour correction plate 16, a'meniscus correcting lens 13 and a concave mirror 15 which forms an image at 17 after reflection in a plane mirror 14. Numerical data are also given for one example of a system, as in Fig. 5, in which the plate 16 and mirror 14 are omitted, and for one example of such a modified system in which the meniscus lens 13 is concave towards the concave mirror 15. Specification 637,645 also is referred to.
Patent GB-763892-A (GB)
Title: An improved thermally-responsive electric heat regulating switch
IPC: H01H37/10
Filed: 1955-01-07
Abstract: 763,892. Thermal switches. COLLIER, R. Jan. 7, 1955, No. 524/55. Class 38(5) A switch similar to that of Specification 748,575 has an ambient temperature compensating bimetal strip 24 having a member 23 carrying the fixed contact 16. The movement of member 23 is checked by abutment with the adjusting cam 18 at high settings of the knob 2 so as to avoid overheating of the main bimetal strip 11 at high knob settings coinciding with high ambient temperatures.
Patent GB-413311-A (GB)
Title: Improvements in the manufacture of artificial filaments
IPC: D01F2/30
Filed: 1933-01-06
Abstract: <PICT:0413311/IV/1> In the production of artificial filaments, a spinning solution is extruded into an evaporative zone in which a substantially reduced pressure is maintained, and the filaments are then stretched outside said evaporative zone while they still contain a high proportion of solvent.  A lubricant or a softening agent may be applied to the filaments as they leave the evaporative zone, and the vapour of a solvent may be fed into the stretching zone.  The suction maintained in the evaporative zone is of the order of 5 inches or more of mercury.  The invention is particularly applicable to the manufacture of filaments of cellulose esters and ethers.  In one form, apparatus according to the invention comprises a spinning cell heated by pipes 10, the spinning jet 7 being mounted on a swivel.  The required reduction of pressure is maintained by drawing off the vapours through a pipe 26.  After a short travel through the evaporative zone, the bundle of filaments passes into a casing 17 through a very small opening 12 of the kind described in Specification 343,936, then over rollers 15 and 16, and to a cap spinning device 22.  The roller 16 rotates faster than the roller 15, so that the filaments are stretched.  A wick 14, e.g. of the type described in Specification 392,904, serves to supply solvent or lubricant to the filaments.  Air may be drawn off through a pipe 21 leading to a solvent recovery plant.  The upper roller 15 may be cooled, and both rollers may be of rustless material.  In another form, solvent vapours or air may be admitted to the stretching compartment.  Specifications 323,790, 324,061, [both in Class 2 (ii)], and 413,289 also are referred to.
Patent GB-740182-A (GB)
Title: Improvements relating to the production of shaped metal bodies having internal cavities, such as magnetron anodes
IPC: B21C37/15
Filed: 1954-01-08
Abstract: 740,182. Magnetrons. BRITISH THOMSONHOUSTON CO., Ltd. Jan. 8, 1954 [Jan. 9, 1953], No. 612/54. Class 39 (1). [Also in Group XXII] A method of producing magnetron anodes and like metal bodies having a generally cylindrical exterior and an internal cavity of relatively complicated profile consists in forming the body of separate elements 3 each in the form of a bar fabricated to a profile corresponding to a respective portion of the complicated profile desired, and after assembling said elements in juxtaposition in a tubular sleeve 4 causing said sleeve to contract for consolidating the separate bar elements into a composite whole. The bar elements 3 may be of T-, L- or U-shaped cross-section, Figs. 1b, 5, or of other section, Figs. 3a, 3b, 3c, 3d, and be provided with interfitting tongues and recesses 21 or 22. The elements may be assembled in a loose sleeve and the sleeve contracted by passage through a die, or the elements may be assembled in a relatively tight-fitting sleeve and the sleeve shrunk on. The elements and sleeves may be formed in continuous lengths and the resultant assembly sub-divided. The elements, of for example copper, may be assembled on a mandrel 19, 20 prior to their enclosure by the sleeve and after contraction of the sleeve and machining of the body, if necessary, the mandrel, of for example aluminium alloy, is dissolved out by soda. After the sleeve has been contracted the assembly may be placed over a mandrel, cut transversely into suitable sections and formed with annular grooves on its end faces.
Patent GB-964009-A (GB)
Title: Horizontal backward extrusion press
IPC: B21C23/21
Filed: 1961-01-06
Abstract: 964,009. Extruding. L. SCHULER A.G. Jan. 6, 1961 [Jan. 16, 1960], No. 639/61. Heading B3P. A horizontal backward extrusion press has at least two similar punches acting alternately or successively. In one embodiment, Fig. 1, a pair of punches 42, 43 are mounted on a punch holder 41 pivoted about a fulcrum 40 to bring the punches alternately into line with a die 44. After extrusion of cup-shaped article 46, the punch is swung into its inoperative position where a stripper 45, 49 removes the article 46. Either the die or the punchholder may be reciprocated. More than two punch and die assemblies may be provided. In another embodiment, Fig. 3, eight punches 51; 51 mounted on a punch-holder 50 cooperate with four dies 53 in a die-holder 52. After extrusion either the punch-holder and the die-holder is indexed to bring the four previously operative punches opposite recesses 54 between the dies whereupon the extruded articles are stripped by means 55. Either the punch or the die-holder is reciprocated.
Patent GB-1145314-A (GB)
Title: Improvements relating to positional control equipment
Inventor: WILSON DEREK ROBERT
IPC: H01Q3/02
Filed: 1967-01-05
Abstract: 1,145,314. Electric positioned control systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec.21, 1967 [Jan.5, 1967], No.664/67. Heading G1N. In a positional control system for e.g. an aerial AE Fig. 1 wherein a transducer PI measures the actual position of the aerial for comparison with the control signal to produce a difference signal energizing the servomotor M, errors due to mechanical vibration of the aerial are eliminated by sensing the frequency of the vibrations with a second transducer T and using the signal to control the frequency/attenuation characteristic of a notch filter NF in the servo-loop. In one embodiment Fig. 3 the vibration frequency signal f r  from transducer T energizes a coil L to switch capacitor C to either side of a resistor R1 at this frequency then producing the desired characteristic. Alternative types of notch filter are shown.
Patent GB-345380-A (GB)
Title: Improvements in or relating to spring gibs
IPC: B24B41/00
Filed: 1930-01-09
Abstract: 345,380. Slides for machine tools. DECKER, A. G., Towson Heights, Maryland, U.S.A. Jan. 9, 1930, No. 847. [Class 60.] In a grinding machine or other machine tool two relatively slidable members having interchanging slideways have a spring gib fitted there between. The invention is shown as applied to a bench grinding machine, comprising a base 1 provided with a slideway 2 engaged by a groove 5 of a carriage 3, the carriage having thereon a transverse slide 8 carrying the grinding wheel 10. A space 6 is left between the way 2 and the side of the groove 5 and the gib is located in the space. The gib consists of a channel iron 14 bearing with its face 15 against the way 2 and having secured at 17<1> at one end in its space 15<1> a corrugated leaf spring 18, the corrugations of which may be equal or of unequal size, bearing against the side of the groove 5. In a modification, the channel iron is replaced by a plate, and in a further modification, an angle iron is employed, Fig. 5, carrying separate springs 25. In another modification, a T-iron is used having a spring on each side of the leg of the T.
Patent GB-112661-A (GB)
Title: An Improved Method and Means of Straightening Metal Rods.
Inventor: GUEST JAMES JOHN
IPC: B21F1/02
Filed: 1917-01-18
Abstract: 112,661. Guest, J. J. Jan. 18, 1917. Straightening. - In a rod-straightening machine, the rod is fed by rollers W, W<1>, Fig. 1, through dies U mounted in heads C, D, through an intermediate die mounted in a head A and moving in a circular or other path round the central axis, but prevented from rotating about its axis by rigid mechanical means. In the arrangement shown in Fig. 2, the die L is mounted in a tube J passing through an eccentric bore in a sleeve F which is rotated in a head A by a pulley G. The sleeves F, J. are secured by lock-nuts H, K. To prevent rotation of the tube J on its own axis, its flange M carries projections N, N<1> which slide vertically in guides on a plate Q, while the plate Q slides horizontally, being formed with projections R which slide in a bracket S secured to the head A. To vary the bending effect, the heads A, C. D may be adjustable along the bed B, Fig. 1, or the eccentricity of the die L may be variable.
Patent GB-620233-A (GB)
Title: Production of dry ready-mixed mortar
IPC: C04B28/10
Filed: 1947-01-10
Abstract: Dry ready-mixed mortar is prepared by mixing damp sand with dry hydrated lime and then incorporating cement, the lime acting as a barrier between the cement and the moist sand.  The sand and lime are preferably mixed in a rotary cylinder or drum, whereby the particles of damp sand become substantially uniformly coated with a layer of dry hydrated lime.  Preferred proportions are by weight, 12 parts damp sand containing 2 - 3 per cent by weight moisture, 3 parts hydrated lime and 1 part cement.  The lime may contain about 10 per cent by weight of burnt lime.
Patent GB-408255-A (GB)
Title: Process for the hydrogenation under pressure of distillable carbonaceous materials
IPC: C10G1/00
Filed: 1932-09-24
Abstract: In the production of hydrocarbons by the heat treatment in presence of hydrogenating gases under pressure of distillable carbonaceous materials containing constituents having a basic or alkaline reaction, acids or acid salts are added in such amount that at least 80 per cent of these constituents are neutralized. Inorganic oxygen containing acids of sulphur or nitrogen or their anhydrides, hydrohalic acids, phosphoric acids and organic sulphonic or carboxylic acids are specified and acid salts of tin, molybdenum, tungsten, manganese, rhenium, magnesium, zinc, cadmium, aluminium vanadium, or chromium may be used.  Metals or their compounds, e.g. sulphides, oxides, phosphides, carbonates or oxalates may also be added.  Examples are given of the neutralization of the basic constituents of a coal paste by the addition of sulphuric acid, or of sulphur dioxide, and of the subsequent hydrogenation of the neutralized materials. Specifications 275,664, 299,020, 299,021, [all in Class 32], 408,002, 408,003, and 408,004 are referred to.ALSO:In the production of cyclic hydrocarbons by the heat treatment in presence of hydrogenating gases under pressure of distillable carbonaceous materials containing constituents having a basic or alkaline reaction, acids or acid salts are added in such amount that at least 80 per cent of these constituents are neutralized. Inorganic oxygen containing acids of sulphur or nitrogen or their anhydrides, hydrohalic acids, phosphoric acids and organic sulphonic or carboxylic acids are specified and acid salts of tin, molybdenum, tungsten, manganese, rhenium, magnesium, zinc, cadmium, aluminium vanadium, or chromium may be used.  Metals or their compounds, e.g. sulphides, oxides, phosphides, carbonates or oxalates may also be added.  Examples are given of the neutralization of the basic constituents of a coal paste by the addition of sulphuric acid, or sulphur dioxide, and of the subsequent hydrogenation of the neutralized materials. Specifications 275,664, 299,020, 299,021, [all in Class 32], 408,002, 408,003, and 408,004 are referred to.
Patent GB-381046-A (GB)
Title: Improvements relating to water gas manufacture
IPC: C10J3/24
Filed: 1932-01-12
Abstract: 381,046. Water gas generation. HUMPHREYS & GLASGOW, Ltd. and FRYER, J. E. G., Humglas House, Carlisle Place, Victoria Street, London. Jan. 12, 1932, No. 916. [Class 55 (i).] In water gas apparatus wherein a regulating valve is associated with the main secondary air valve and also the timing shaft of an automatic operator, opening of the secondary air valve puts the regulating valve into driving connection with the timing shaft so that the latter valve is gradually opened. The quantity of secondary air is thereby increased as the blow proceeds. The secondary air valve b, when in the open position as shown, allows a lever m to raise a mask l, which slides in a frame f in front of a rack e, which releases pawls g, h from the rack. Rotation of the timing shaft oscillates a lever i which raises the rack through the pawl h thus opening the regulating valve c. Closing of the valve b tilts the lever l by a tappet b<1>, causing the mask to fall by releasing the pawls again, and thereby closing the valve c. In a modification the rack and mask are circular and are mounted on a central spindle. The rate of opening of the regulating valve may be adjusted.
Patent HK-77997-A (HK)
Title: Animal grooming aids
Inventor: LENNON CATHERINE MICHELE
IPC: A01K13/00
Filed: 1997-06-12
Abstract: PCT No. PCT/AU93/00273 Sec. 371 Date Apr. 26, 1994 Sec. 102(e) Date Apr. 26, 1994 PCT Filed Jun. 7, 1993 PCT Pub. No. WO93/25069 PCT Pub. Date Dec. 23, 1993.An animal grooming mitt is provided which has a mitt body including a main pocket and a separate thumb pocket, and a palm portion made of rubber which is attached to the mitt body and which has a sufficient coefficient of friction to facilitate the removal of an animal's hair during grooming of the animal upon movement of the animal grooming mitt through an animal's hair in a manner which resembles petting of the animal.
Patent JP-H01177149-A (JP)
Title: Interruption processing system accordant with system constitution
Inventor: SAKURAGI MASANORI
IPC: G06F9/48
Filed: 1988-01-05
Abstract: PURPOSE:To shorten the interruption processing time at conflict of interruption requests by changing the interruption routine in response to the scale of a device or a channel connected to an information processing system. CONSTITUTION:For instance, devices #N and #M only are connected to an information processing system. In this case, the device constitution is recognized for detection of the presence or absence of connection together with an interruption processing table where only both devices #M and #N are set when the firmware is loaded at rise of the system. Then said table is searched with a test bit instruction for interruption processing and therefore an interruption routine is produced for interruptions of both devices #M and #N only. Thus the interruption processing time can be shortened at conflict of interruption requests since the interruption routine is changed in response to the scale of the device or the channel connected to the system.