baber/WOPTO huggingface dataset:
Patent GB-248157-A (GB)
Title: Improvements in or relating to hay gatherers or sweeps
IPC: A01D87/08
Filed: 1925-02-06
Abstract: 248,157. Stevens, 0. F. Feb. 6, 1925. Couplings for tractors.-A pair of shafts e is hinged to the rear of a hay sweep a and at its rear end each shaft is pivotally mounted on a stub axle g secured to the hub of one of the rear wheels 3 of tractor or pusher 2. The shafts are also secured to the frame of the tractor by universally movable stays h, loose connections being provided to permit relative vertical movements between the sweep and the tractor.
Patent GB-371496-A (GB)
Title: Process for bleaching bast fibres, especially flax, hemp and the like
IPC: D06L4/75
Filed: 1931-02-03
Abstract: The process of the parent Specification for bleaching and freeing from lignin constituents bast fibres, especially flax, hemp and the like is modified in that the bowking [stage (1)] is replaced by soaking for some hours in a warm sodium carbonate solution containing, if desired, caustic alkali, and in that the acidity of the hypochlorous acid bath [stage (2)] is adjusted to a pH value <4,5.  Thus stage (1) may comprise a soaking overnight in a solution containing 2 to 9 grams of sodium carbonate per litre at 40-90 DEG C.  The quarterto half-bleached goods may be further bleached to a full white, e.g. by infusion with dilute sodium carbonate solution followed by hanging out for a few days or by a weak peroxide and/or hypochlorite bleach.
Patent GB-916226-A (GB)
Title: Improvements in or relating to padding elements constituted by hollow moulded pieces
IPC: A47C27/08
Filed: 1960-02-01
Abstract: 916,226. Cushions. BOURGOIS, J. Feb. 1, 1960 [Jan. 30, 1959; May 20, 1959], No. 3447/60. Class 52 (4). A moulded cushion comprises a top surface 3 sealed to a bottom surface 2 around the periphery and being sealed to form a series of parallel non-intercommunicating chambers a, b, c, d and/or having tubular columns 5 connecting the upper and lower surfaces 3 and 2. In the case of a single chamber (as in Fig. 4), the periphery is extended downwards to form walls 9 and analogous internal walls 10 may also be added. The chambers may be filled with air or gas at any desired pressure or may be filled with a synthetic foam.
Patent GB-1218804-A (GB)
Title: Improved exposure meter arrangement for a single lens reflex camera
IPC: G03B7/099
Filed: 1968-01-23
Abstract: 1,218,804. Exposure meter arrangement. NIPPON KOGAKU K. K. Jan.23, 1968. [Jan.27, 1967], No.3525/68. Heading G2A. In a single lens reflex camera having interchangeable objectives, an exposure meter, incorporated in the viewfinder, comprises a convergent optical system forming an image of the object being photographed on a photo-sensitive surface of the exposure meter the size of the conjugate image of the photo-sensitive surface being less than the exit pupil of any of the obectives. In one embodiment, Fig.1, the convergent optical system, comprises convex mirror 6, lens 7 having a diaphragm 7a and plane mirror 8, diaphragm 7a and film 5 in image frame 4 being respectively conjugate with objective 1. In another embodiment, Fig. 5 (not shown) the diaphragm (7a) is placed on the conjugate surface to the film (5) and the lens (7) behind the diaphragm. In another embodiment, Fig. 3 (not shown) a plane mirror (6) replaces the convex mirror (6). In a fourth embodiment, Fig. 7 (not shown) a concave mirror (8) replaces the lens (7).
Patent GB-574902-A (GB)
Title: Improvements in or relating to continuous extraction of loose flowable material
IPC: C11B1/10
Filed: 1943-03-04
Abstract: 574,902. Extracting oils; passing gases through solids. BUHLER BROS. March 4, 1943, Nos. 3575, 3576 and 3577. Convention dates, Feb. 25, 1942, Sept. 8, 1942, and Oct. 6, 1942. [Classes 1 (i) and 91] [Also in Groups VI and VIII] In the extraction of loose flowable material, such as oil seeds for the recovery of oil and wood pieces for the recovery of essential oils, the material is conveyed by a Redler type conveyer in an uninterrupted continuous stream through a close troughshaped extraction container, while conserving the relative positions of the particles of the conveyed material, and is subjected at least during a fraction of its travel through the container to the action of an extracting agent flowing in the direction of travel of the extraction material or counter-current to the direction of travel of the material. Alternatively, the material may flow in the direction of travel of the extracting agent in a portion of the trough-shaped container and counter-current to this direction in another portion of the container. The extracting agent may be liquid such as gasoline, water or alkali, or a gas. As shown in Fig. 1 a Redler type conveyer chain 3 conveys the material from a charging funnel 6 down through a trough 8 and up through a trough 9 to an outlet 7, whilst the extracting agent is fed by gravity from an inlet 10 in co-current to the material in the trough 8 to an outlet 11. According to modifications the extracting agent is fed by gravity in counter, current to the material in trough 9 by pump from the outlet 11 to the top of both troughs, or by pump to the bottom of the apparatus leaving at the tops of both troughs. The Specification as open to inspection under Sect. 91 describes also modifications in which an adjustable throttle slide near the entrance of the material penetrates more or less into the sectional area of the trough and controls the rate of feed of the material, in which the extracting agent is fed by sprinklers, and in which the cross sectional area of the trough slightly decreases from the entrance to the outlet of the extraction material. This subject-matter does not appear in the Specification as accepted.
Patent GB-705881-A (GB)
Title: Improvements in or relating to valves for controlling the flow of fluids
IPC: B64D39/00
Filed: 1952-02-11
Abstract: 705,881. Valves controlled by auxiliary valves. FLIGHT-REFUELLING, Ltd., and WORLIDGE, R. F. Jan. 21, 1953 [Feb. 11, 1952], No. 3588/52. Class 135 A valve of the kind in which a main valve is actuated by the controlled fluid under the control of a pilot valve in such manner that the main valve is opened when the pilot valve is opened and closes when the pilot valve closes comprises an annular valve seat member 10 adapted to be bolted to pipe sections 14, 15 connected in a conduit, a poppet type valve closure member 21, a fluid tight casing 42 mounted coaxial with and in spaced relation to the seat member, a fluid-pressure responsive member such as the resilient metallic bellows 22 of larger effective area than the valve closure member and connected thereto by a stem 20 dividing the casing into two chambers one of which is connected with the outside of the conduit by a passage 43 and the other of which is connected to the upstream side of the valve by a restricted passage 44, and a pilot valve 33 which when open is adapted to connect the second of said chambers with the downstream side of the valve. The pilot valve 33 controls a passage 32 in the main valve stem 20 and is actuated through a spring- pressed sleeve 34 sliding on the stem 20 by a solenoid unit 38. This unit is clamped with one end of a perforated flanged sleeve 24 to the bottom of a cup-shaped member 23 forming one end of the bellows by a threaded sleeve 39. The streamlined casing 42 is mounted on a ring 17 smaller than the seat member 10. The ring 17 is connected to the seat member by a number of inwardly inclined legs 16 and forms a support for a member 19 which guides the valve stem 20 and also forms the other end of the bellows. The leads to the solenoid unit pass through the passage 43.
Patent GB-545680-A (GB)
Title: Improvements in storage water heaters
IPC: F24H1/18
Filed: 1941-03-17
Abstract: 545,680. Storage water heaters ; heat insulation. WORCESTER WINDSHIELDS & CASEMENTS, Ltd., and SOUTHALL, H. March 17, 1941, No. 3614. [Classes 64 (i) and 64 (ii)] The jacket of a storage water heater is filled with insulating material, e.g. granulated cork, by first filling the annular space 6 with a measured quantity through a funnel which fits the top when the cover 7 is removed. During this operation the heater is placed on a mechanically vibrated platform. The cover is then fitted and a smaller funnel applied to the opening 12 from which the plate 14 is removed. A measured quantity of insulating material is poured in while vibrating, so that the jacket is completely filled. A vent cap 10 is then screwed on to a vent tube 9 to retain the plate 14 in position. If the water heater is of the pressure type with an expansion pipe in place of the vent tube 9, the opening 12 is closed by a two-part cover fitted around the pipe.
Patent GB-1489658-A (GB)
Title: Planing machines
IPC: B27C1/10
Filed: 1976-01-28
Abstract: 1489658 Planing machines F A COLSTONILES and A M THOMSON 28 Jan 1976 [28 Jan 1975 4 July 1975] 3776/75 and 28344/75 Headings B5L and B4B A wood planing machine, Fig. 3, comprises a base 10 having a sole plate 10b, two lateral sole frame members 10a and a transverse elongated opening 18 through which projects a plane blade 9 having a cutting edge parallel to the opening. The blade is mounted on a blade body 14 reciprocatable on two support rods 6 which are carried by the two lateral frame members 10a. The blade 9 is adjustable in position and inclination with respect to the blade body 14 by two screws 5 and fixed by a screw 8. In operation of the tool, the blade body 14 is caused to reciprocate along the support rods 6 by a transmission which comprises an eccentric bearing 17 located in a recess 14a at the rear face of the body and engaged by a crank drive spindle 1 carried fixedly in a bearing on bearing plate 2 fixed to the sole plate 10b and the lateral frame members 10a. The drive spindle 1 is engaged by a chuck 16 of a power tool 15. The blade body may be driven by a linear solenoid motor. The blade body may be adjustable with respect to the base. The cutting edge may be serrated or rectilinear.
Patent GB-192925-A (GB)
Title: Improvements in bag and like fastenings of the kind having spring hasps or arms
IPC: E05B65/50
Filed: 1922-02-09
Abstract: 192,925. Cheney, C. W. Feb. 9, 1922. Hasp fastenings.- The hasp c of the lock of an attachÚ or like case is furnished with a hook c<4> at its end with which engages a swing- ing loop g on the lock casing a, when the hasp is fastened. When the case lies flat for opening, the loop swings clear of the hook, its outward swing being limited by stops h<2>.
Patent GB-790427-A (GB)
Title: Improvements in or relating to cathode-ray tubes and circuits therefor
IPC: H01J29/76
Filed: 1955-02-09
Abstract: 790,427. Electron lenses. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Feb. 9, 1955 [Feb. 9, 1954; June 28, 1954], No. 3854/55. Class 39(1). Reduction of astigmatism and coma in a cathode-ray tube comprising a plurality of electron guns producing a composite ribbon beam for colour or stereoscopic television viewing, is produced by making the width of the composite beam parallel to one direction of scanning deflection, and the meridional image surface of this direction of deflection and the sagittal image surface of the other direction both coincident with the surface of the screen. The theoretical bases for the correction two systems of deflection coils for the purpose are described. The C.R.T., Fig. 3, has three guns 22, 23, 24, the beams passing through a focusing coil 26 and a deflecting system comprising two half coils 27a, 27b for one direction and two half coils 28a, 28b, Fig. 4, for the other. The half coils are unsymmetrical as shown, the amount of the tube unembraced at the coil ends varying between limits calculated in the Specification. In Fig. 8, two ferromagnetic rings 33, 34 surround the neck of the tube, each carrying eight coils wound toroidally. The X and Y deflection systems each comprise four coils wound on ring 33 and four on ring 34, two of each set for the X system being shown at 35, 36 and 39, 40 respectively. The coils in dotted line 45, 46 and 49, 50 are part of the Y system. 'The angles subtended by the coil pairs are 25 degrees, 33 degrees, 43 degrees and 20 degrees respectively, Figs. 9a-10b (not shown). The eight coils in each set are connected as two parallel groups of four coils in series, each series connection including part of an inductance coil having an adjustable core, Fig. 11 (not shown) ; or as a series connection between the supply 61, 62, the asymmetrically variable impedance 59, 60 lying across the supply with its mid point connected to the point between the two groups of coils 45- 48 and 49-52 as in a bridge circuit.
Patent GB-1019043-A (GB)
Title: Improvements in or relating to propellant charges for solid fuel rockets
IPC: F02K9/18
Filed: 1963-01-30
Abstract: 1,019,043. Rocket propellant charges. RHEINMETALL G.m.b.H. Jan. 30, 1963 [Jan. 30, 1962], No. 3891/63. Heading F3A. The combustion chamber of a rocket motor has a cylindrical wall 1 and contains the propellant grain 2 which has an axial hole of starshaped cross-section. Between the wall 1 and grain 2 there is an annular gap 3 of width such that at a normal temperature the grain can easily be inserted into the combustion chamber and at higher temperatures the grain bears tightly against the wall 1 due to differences in the coefficients of expansion of the grain and wall. Notches 5, 5<SP>1</SP> formed in the grain act as predetermined breaking points. A V-shaped elastic sealing strip 7 is let into a notch 6 opposite the notch 5 so that when the internal pressure causes a crack to form in the grain the two sides of the strip 7 will spread open as the strip is pressed against the wall 1 thus preventing the escape of gas into the gap 3. At each end of the grain the gap 3 is closed by sealing rings which are movable to allow changes in the length of the grain.
Patent GB-898595-A (GB)
Title: Improvements in or relating to rate gyroscopes for determining changes in position in space
IPC: G01C19/42
Filed: 1960-02-04
Abstract: 898,595. Gyroscopic apparatus. SIEMENSSCHUCKERTWERKE A.G. Feb. 4, 1960 [Feb. 4, 1959], No. 4020/60. Class 97(3). The rotor 6 of a rate of turn gyroscope is driven by a flexible shaft 10 which forms the spring restraint. The motor 9 drives shaft 10 which extends through the hollow rotor shaft 11 and is connected thereto by diaphragm 12, 13, or alternatively by a longitudinal toothed gearing shown dotted at 14. Hollow shaft 11 is conically widened at 15 to allow precession of the rotor 6 and casing 5 about axis 19, a pick-off 16, 17, detecting such precession.
Patent GB-265998-A (GB)
Title: Improvements relating to photomechanical monochrome and polychrome screen reproduction
IPC: G03F3/02
Filed: 1927-02-14
Abstract: 265,998. Branger, J. R., and Thoorens, J. J. J. Feb. 14, 1927. Photo-mechanical printing-surfaces.-In order to determine what corrections are necessary for an ordinary size or small negative which is to be used for the production of large size printing surfaces by first making enlarged screen reproductions, from which reproductions the final printing surface is produced, a screen reproduction is first made from the original negative and a gelatin printing surface made therefrom. The trial proof therefrom shows up the defects and indicates what corrections are necessary for the original negative prior to making the screen enlargements for the final printing surfaces. The trial printing process can be repeated if necessary, and the process is particularly applicable for multi-colour printing. The Specification as open to inspection under Sect. 91 (3) (a) mentions the use of ferroprussiate paper carried on gelatine for making printing surfaces, and also the alternative use of sureen-negatives. This subject-matter is not specifically included in the Specification as accepted.
Patent GB-556323-A (GB)
Title: Improvements in recording navigation instrument
IPC: G01C1/08
Filed: 1942-03-27
Abstract: 556,323. Sextants &c. LINK AVIATION DEVICES, Inc. March 27, 1942, No. 4121. Convention date, April 7, 1941. [Class 97 (ii)] A sextant or like instrument is provided with a manually-rotatable shaft carrying a recording drum and driving a shaft supporting an index mirror and index arm, the index arm co-operating with a scale on the casing to give readings in degrees and minutes so that complete readings of the precise angular position of the index mirror can be obtained from the index arm scale without any reading being taken from the recording surface. The instrument comprises a one-piece casing containing an electric lamp unit 14 for illuminating a bubble unit 24, a bubble image reflecting unit, and a mirror indexing unit mounted on a shaft 52 including in addition to the mirror an index arm 56 terminating in a vernier 60, all substantially as described in Specification 556,573. The index arm and mirror are rotated, through reduction gearing 108, by means of a translucent hand-wheel 94. A lamp 186 in the index arm 56 illuminates the vernier 60 and the adjacent portion of the graduated arc 64, the readings being given in degrees and minutes. After each observation, the operator actuates a thumb lever 170 thereby causing a pencil 144 to mark the cylindrical surface of the handwheel with a line corresponding to the angular setting. The markings are illuminated by a lamp 174 situated within the translucent hand wheel. The lamps 174, 186 are supplied, on depression of a button 206, from a battery 200. In using the instrument, observations are made in the ordinary manner, the mirror and index arm being adjusted by the hand-wheel 94. After each observation the thumb-piece 170 is operated to mark the hand-wheel, and at the end of a series of observations the button 206 is depressed to illuminate both the markings and the vernier. The index arm is set to correspond to the average mark on the hand-wheel and a reading is taken.
Patent GB-909212-A (GB)
Title: Process for the manufacture of polyethylene
Inventor: CLEVE WOLFGANG
Filed: 1960-02-05
Abstract: Polyethylene is prepared by polymerizing ethylene in a hydrocarbon solvent using as catalyst an aluminium ethyl dichloride-alkali metal halide complex and titanium tetrachloride. The complex may be preformed in the hydrocarbon solvent, titanium chloride added and then ethylene introduced.  Sodium chloride, potassium bromide and potassium iodide are specified halides while methyl-cyclohexane is the specified solvent.  The product may be extracted with butanol.
Patent GB-557875-A (GB)
Title: Improvements in or relating to the coating of electrical conductors
IPC: H01B7/28
Filed: 1942-03-28
Abstract: 557,875. Coating- electrical conductors ; polyamides. STANDARD TELEPHONES & CABLES. Ltd. March 28, 1942, No. 4183. Convention date. March 28, 1941. [Class 95] [Also in Groups IV and XXXVI] An electrical conductor is coated with a linear polyamide of intrinsic viscosity at least 0.1, and the coated conductor is then heated to 125‹C-450‹C, in the presence of oxygen, for a time sufficient to change the colour of the polyamide at least to a pronounced yellow but not sufficient to change its colour deeper than a reddish brown, thereby converting the polyamide into a tough flexible, substantially infusible material. The thickness of the polyamide coating should preferably be not more than <SP>1</SP>/ 64  of an inch, and the polyamide may be applied to the conductor in solution, or molten condition. Driers, such as cobalt resinate, lead linoleate and cobalt naphthenate, may be added to the polyamide or to its solution to accelerate the heat-oxygen treatment. Examples are given of the preparation of polyamides and of polyesteramides, and of their use in the above coating process. Specifications 461,236, 461,237 and 503,376, [all in Group IV], are referred to.
Patent GB-565770-A (GB)
Title: Improvements relating to aircraft wings and other control surfaces of the stressed-skin type
IPC: B64C3/00
Filed: 1941-03-28
Abstract: 565,770. Aircraft wings. VICKERS-ARMSTRONGS, Ltd., and WALLIS, B. N. March 28, 1941, No. 4234. [Class 4] An aircraft wing formed in two parts connected together at their edges, for example as described in Specification 478,089, is braced internally against bursting stresses by pairs of toggle links 15, 16 operable from the exterior of the wing after the sections have been assembled so as to draw the sections together for use or force them apart when disassembling. As shown, each section comprises a beam 4 and half ribs 5, 6 connected at their leading and trailing edges to angle members 7, 8 having abutting surfaces. The stressed skin covering and rear fairing are omitted. The toggle links 15, 16 are connected to bolts 18 passing between conical members 9, 10, Fig. 3, on brackets 11, 12 secured to the ribs and members 7 or 8. These members 9, 10 are engaged by a member 13 having a conical recess to draw the members 9, 10 together when a nut 14 screwed onto the end of the rod 18 is tightened, this nut simultaneously serving to tighten the corresponding toggle 15, 16. The interior of the wing is left clear for the accommodation of flexible tanks which, by bearing against the toggles, helps to keep them tensioned.
Patent GB-1118388-A (GB)
Title: Improvements in or relating to processes and apparatus for producing and feeding measured quantities of plastic materials
IPC: B29C48/08
Filed: 1967-01-30
Abstract: 1,118,388. Cutting and feeding plastics material. SEMPERIT OSTERREICHISCHAMERIKANISCHE GUMMIWERKE A.G. 30 Jan., 1967 [31 Jan., 1966; 11 Feb., 1966], No. 4353/67. Heading B5A. A process for producing pieces of plastics material of equal volume and feeding predetermined numbers of these pieces to various stations, comprises cutting the blocks from a sheet of plastics material of uniform thickness on a roll by transverse and longitudinal cutters and feeding the pieces along a conveyer belt in which movable sections enable counted numbers of blocks to be removed to different stations. The sheet of material 3 which is preferably a rubber mix is formed between rollers 1 and 2 and passes around roller 2. The sheet is either completely or partially cut through trasnversely over less than its width by cutter blades 4a mounted on a wheel 4, prongs 4b mounted at the sides of the blades serving to drive blades 4a at the same speed as the belt. The cutter wheel is urged against the roller 2 by springs 5 acting on the axles 6 of the cutter wheel. The sheet is cut into longitudinal strips by two parallel cutter wheels 8 driven at the same peripheral speed as the roller by the same method as used for cutter 4. The sheet is removed from roller 2 by a doctor blade 12 and is passed between rollers 14, 15 and 16, 17 the second pair of which have a greater peripheral speed than the first thereby separating the sheet into pieces. The pieces formed are counted electrically or mechanically and are passed along a conveyer belt, sections of which pivot down to deposit material in a container below. The sections of the belt are pivoted down until the required number of pieces are in the container below and are then closed so that the pieces pass on to other containers. The counting and control mechanism is arranged so that when all the containers contain the predetermined number of pieces, subsequent pieces are returned to the first stage and reformed into sheets. The apparatus is designed to supply the correct charge for compression and injection moulding machines, the size of the pieces being the highest common factor of the charges required for the various moulding apparatuses.