baber/WOPTO huggingface dataset:
Patent GB-902394-A (GB)
Title: Improvements in cotton gins
Inventor: DYER FREDERICK JOHN
IPC: D01B1/04
Filed: 1960-06-23
Abstract: 902,394. Gins. T.M.M. (RESEARCH) Ltd. May 16, 1961 [June 23, 1960], No. 22040/60. Class 120 (1). A cotton gin is provided with a vibratory feed plate mounted above the guide and so positioned as to direct material to the gin roller, the position and extent of vibration of the feed plate being such that the grid is shielded from material fed to the gin roller, thus allowing seeds to fall through the grid unimpeded. The feed plate 19 is preferably secured to the same support 18 as the grid 17 and the grid 17 is oscillated in synchronism with the heater 16.
Patent GB-1341291-A (GB)
Title: Agricultural implement for spreading manure hay straw or other spreadable bulk materials
IPC: A01C3/06
Filed: 1971-04-19
Abstract: 1341291 Material spreader HEINZ KEMPER GmbH [trading as WILHELM KEMPER KG] 19 April 1971 [20 Feb 1970 22 April 1970] 22045/71 Heading AID A material spreader 1 has tines 19 mounted on a rotatable horizontal member 14 at an angle to the axis 15 of that member, the tips of the tines having an axial component of movement when pivoting to either side of a radial position established under centrifugal force. The tines are preferably arranged symmetrically about a median plane 22 of the spreader. A guide grid (not shown) may be arranged around the spreader. Various shapes of tine e.g. L-section, U-section or cranked are disclosed.
Patent GB-531724-A (GB)
Title: Improvements in television circuits
IPC: H04N5/21
Filed: 1939-07-31
Abstract: 531,724. Television. GENERAL ELECTRIC CO., Ltd., and O'KANE, B. J. July 31, 1939, No. 22161. Drawings to Specification. [Classes 40 (iii) and 40 (v)] For reducing interference in combined television and sound reception, all signals in the vision channel above the maximum amplitude of the vision signals are separated out and used to reduce the gain in some part of the sound channel. The separated signals may be delayed or modified before application to the sound channel. In the system described, the vision signals are applied to the grid of a tetrode biased to pass current only on an interference peak, the anode of the tetrode being connected to the suppressor grid of a pentode, constituting an intermediate frequency amplifier in the sound channel.
Patent GB-1101737-A (GB)
Title: Process for reducing iron oxide particles
IPC: C21B13/00
Filed: 1965-05-25
Abstract: Iron oxide particles, e.g. ground haematite or magnetite containing 67-69% combined Fe, are reduced to sponge iron in fluidized beds with a counter-current flow of hydrogen-rich gas by partially reducing the iron oxide to iron, e.g. to 60-75% eliminated oxygen, at a maximum temperature of 750 DEG  C., cooling the iron oxide-iron mixture to a maximum temperature of 250 DEG C., reheating the mixture e.g. to 380-450 DEG C., and finally reducing the remaining unreduced oxide, e.g. to 90-99% eliminated oxygen, at a maximum temperature of 580 DEG C.  Initially the particles may be pre-heated to 900-1000 DEG C. and the reducing gas to 800-850 DEG C.  The partial reduction may be carried out in two stages in series with reduction to FeO in upper stage.  Preferably, part of the reducing gas from the final reduction is recycled back and part (after water vapour removal) is added to the partial reduction circuit.
Patent GB-642087-A (GB)
Title: Improvements in or relating to tuning arrangements for radio receivers
IPC: H03J3/10
Filed: 1946-07-26
Abstract: 642,087. Radio receiving circuits. SVENSKA RADIOAKTIEBOLAGET. July 26, 1946, No. 22288. Convention date, Aug. 14, 1945. [Class 40 (v)] A tuning arrangement for radio receivers comprises a number of tuning members individually allotted to a corresponding number of part-wave ranges within the short-wave range, and a continuously variable reactance common to all part-wave ranges, each partwave range having wavelength limits in the ratio of 1: 1.28, and band-spreading being arranged to take place at one end of each partwave range. As shown in Fig. 2, a controllable. inductance 7 is provided for each part range, tuned by the condenser 4 normally provided for long and medium ranges. The tuning condenser, in series with a fixed condenser 5, is connected in parallel with a trimming condenser 6, condensers 5 and 6 being common to all short-wave part-ranges and proportioned to give the required wavelength variation. The capacity of condenser 4 should preferably vary linearly with the turning angle, and for convenience in waveband switching the short-wave bands which have been spread should be arranged at the upper end of the scale counted in wavelength, as shown in Fig. 3.
Patent GB-974199-A (GB)
Title: Rotary heat exchanger apparatus
IPC: F28D19/04
Filed: 1963-06-05
Abstract: 974,199. Thermal regenerators. COMBUSTION ENGINEERING Inc. June 5, 1963 [June 21, 1962],No. 22332/63. Heading F4K. Rotary regenerative heat exchanger having a rotor and inlet and outlet ducts 26, 32 and 28, 34 for a heating fluid and a fluid to be heated; the rotor comprising a cylindrical rotor shell 20 having radial partitions 14 which provide a series of sectorial compartments therebetween, each containing heat absorbent material consisting of a multiplicity of flexible elements 24 suspended between spaced portions of said compartments such that a sag is imparted to each element. Hence the curvature of each element varies as the rotor rotates, thereby producing contact between adjacent elements during rotation of the rotor, and so removing deposits from the elements. In the form described the flexible elements are of chain-like form which may be attached directly to the compartment walls, or to the walls of " baskets " which fit into the compartments. The attachment may be made by welding or by passing a linking bar 38 through links of chains and a series of apertured studs connected to the compartment walls (Fig. 6, not shown). Spacers may be inserted between adjacent chains, giving any desired spacing between the said chains, which are disposed across the compartment in a plurality of successive planes lying between the inlet and outlet ducts. Chains forming one plane may be disposed at any angle to those forming the adjacent plane (Figs. 4, 5, 7, not shown). The amount of sag of chains within a plane, and the spacing of chains within adjacent planes may also be varied. The elements may comprise a continuous length of chain connected to the walls of the compartment, by either method described above, in zig-zag form (Fig. 9, not shown). The axis of the rotor may be in any position other than vertical but preferably horizontal. The rotor may be rotated either continuously or intermittently. The chains may be arranged such that deposited particles may be dislodged selectively in either the heating fluid or the fluid to be heated.
Patent GB-478689-A (GB)
Title: Improvements in flashed illuminating elements and in processes for their manufacture
IPC: F21V3/04
Filed: 1936-08-14
Abstract: 478,689. Sand -blast. SACHSISCHE GLASFABRIK A. WALTHER & SOHNE AKT.-GES. Aug. 14, 1936, No. 22399. Convention date, Feb. 24. Addition to 447,652, [Group XI]. [Class 60] [Also in Groups XI and XV] In a flashed glass lamp shade or like illuminating element comprising a clear or coloured inner glass layer, a translucent or relatively opaque intermediate glass layer, and a clear or coloured outer glass layer, in which an ornamental pattern or design is cut out by means of a sand-blast which removes the entire thickness of the inner and intermediate layers, as described in the parent Specification, those surfaces which are not to be clearly transparent, or which lie adjacent the surfaces to be treated, are masked by means of a rubber or like shield.
Patent GB-461069-A (GB)
Title: Improvements in spools for thread or yarn
IPC: B65H75/18
Filed: 1936-08-14
Abstract: 461,069. Spools. FRUH, K. Aug. 14, 1936, No. 22439. [Class 120 (iii)] A spool for textile purposes is covered with textile fabric which is varnished or impregnated and the tip of the spool is left smooth either by the fabric covering stopping short of the tip or by the covering extending over the tip and being made smooth thereat. As shown in Fig. 1, the spool is of metal slotted longitudinally except at the smooth tip c and the textile covering d is secured at the foot of the spool by a cap e and near the tip c by being folded into a groove f in the spool, the edge of the covering being flush with the surface of the tip c or sunk with relation thereto. The spool has a bearing member g secured by a ring h which presses the shank of the spool into a channel in the member g. In a modification, the covering extends over the tip of the spool and is smoothed. In another form, the covering extends over the top of the spool and inside it, and a tapered cap, pushed upwards from the bottom of the spool, is flattened over the covering and forms the smooth tip. The spool may be formed of two concentric parts fitted together. The spool may have an inner fabric covering and may be divided longitudinally by a pair of slots, each part being provided with a complete fabric covering.
Patent GB-239057-A (GB)
Title: Improvements in or relating to racquet presses
IPC: A63B60/44
Filed: 1924-09-23
Abstract: 239,057. Flower, A. I. Sept. 23, 1924. Racket presses. - In a press of the kind in which two clamping-members 1, 2 with radial arms 3 are drawn together by a bolt 6 passing through the mesh of the racket, the thickness of the press is reduced by tapering the inner edges 4 of the arms, the outer edges being substantially parallel, as shown in Fig. 2. The arms are preferably of channel section, with flattenad extremities 5. The bolt 6 is provided with a swivel grip 9 and engages a member 7 having a squared portion 11 fitting a corresponding recess in the member 2. An enlarged bone 15 facilitates the screwing up of the press.
Patent GB-617208-A (GB)
Title: Improvements in or relating to the springing of motor vehicles
IPC: F16F1/22
Filed: 1946-07-29
Abstract: 617,208. Vehicle spring-suspensions; laminated springs. ASSOCIATED EQUIPMENT CO., Ltd., and HOUSTON, A. A. July 29, 1946, No. 22530. [Classes 108 (ii) and 108 (iii)] A spring unit for a motor-vehicle axle has a pair of rebound-check stops g, rigid with respect to the axle, the spring c having a comparatively low rate between static no-load and a predetermined static full-load, followed by a much stiffer rate when abutment occurs between the spring and the stops g. Two pairs of side plates a, b are rigidly attached at the points d to top and bottom plates e, f, near the centre of the spring and U-bolts g which straddle the spring and act as the rebound check stops are connected to the apices of the plates; an adjustable clearance h<SP>1</SP> is provided between the U-bolts g and the top of the spring. Bump damping is provided by auxiliary springs a<SP>1</SP> which have a cumulative action due to the graded clearance between the upper leaf and the main spring. In a modification, a second U-bolt, which straddles the underside of the spring and acts as a bump damper, is attached to each pair of plates a, b at their apices. In a further modification, a rigid beam may be clamped to the vehicle axle, the beam carrying U-bolts straddling the spring, or carrying one or more abutments to engage the spring.
Patent GB-720575-A (GB)
Title: Improvements in dry shavers
IPC: B26B19/04
Filed: 1952-09-08
Abstract: 720,575. Dry shavers. DUPONT, B. TISSOT-. Sept. 8, 1952 [Oct. 15, 1951], No. 22544/52. Class 131. A dry shaver comprises a blade carrier reciprocated by an actuating lever and supporting blades arranged transversely to the direction of motion of the carrier and individually pressed against the inner face of an apertured guard plate which is curved with its axis of curvature parallel to the direction of motion of the blade carrier. As shown, an apertured guard 1 of hard spring metal is mounted in slots in supports 2, 3 spaced so that the guard is flexed to form part of the surface of a cylinder. Blades 4, supported in grooves in a blade carrier 5, are individually spring- urged towards the guard plate, the carrier being provided with a central aperture to receive an actuating lever 8 carrying a rubber damping roller 9 and oscillated by a shaft 12. The carrier 5 is supported by a spring 11 and convex washer 10 concentric with the shaft 12 so that the carrier 5 is reciprocated without compression of the spring 11. A device for cutting long hair comprises a toothed spring-urged cutter 14 reciprocated, beneath a comb 13, by a crank-pin 16 fixed in a part 17 which is mounted for rotation with the shaft 12. In modifications a greater number of blades are mounted in the carrier obliquely to the sides 2, 3 which are adjustable to vary the curvature of the guard.
Patent GB-1059392-A (GB)
Title: Improvements in or relating to demodulators for frequency modulated waves
IPC: H03D3/00
Filed: 1964-06-01
Abstract: 1,059,392. Frequency demodulation. G. BATTAIL, and P. BROSSARD. June 1, 1964 [Jan. 21, 1964], No. 22557/64. Addition to 960,807. Heading H3A. In a modification of the demodulator for frequency-modulated signals described in the parent Specification, the output of the local oscillator 35, frequency modulated by an estimate of the modulating signal and the delayed received signal obtained via delay unit 20 are applied to a first mixer 43 which derives a difference signal which is applied via a narrow pass-band filter 45 to a second mixer 490 to which the output from local oscillator 35 is also applied via a filter 470 and the output of the second mixer is applied via a further filter 491 to a frequency discriminator 460 which supplies output terminal 102. If the local oscillator signal is chosen lower in frequency than the received signal the local oscillator signal and the difference signal are added in the second mixer to provide an output signal to discriminator 460 equal in frequency to the received signal. The filter 470 is chosen to have a delay time equal to that of filter 45.
Patent GB-279986-A (GB)
Title: Improvements in or in connection with conveyor chains of ashhandling plants, applicable for other purposes
IPC: F23J1/00
Filed: 1926-09-14
Abstract: 279,986. Brighouse, T., and Robertson, C. A. Sept. 14, 1926. Endless-cha.in scraper and trough conveyers; wearing- blocks.-Removable shoes c for running on skids, to protect the chains of ash or other conveyers from wear, are fitted into undercut grooves d in the links. Scraper bars are connected to the chain links by their dovetailed or like ends being fitted into corresponding grooves h, wherein they are secured by the shoes c lying across the ends of the grooves.
Patent GB-517481-A (GB)
Title: Means for preserving the shape of men's collars and for retaining the necktie in position
IPC: A41B3/12
Filed: 1938-07-29
Abstract: 517,481. Collar stiffeners. THOMSON, H. A. July 29, 1938, No. 22596. [Class 141] A device for preserving the shape of soft collars in wear comprises a pair of members 7 made of semi-stiff material, shaped to follow the fold and detachably secured either by a stud 11 passing through a slot in the neckband or a projection 12 fitting into a pocket on the outer fold of the collar. One of the members has a projecting wire 10 for holding the tie in correct position.
Patent GB-951652-A (GB)
Title: Sulphamyl triazolopyrimidines and their preparation
IPC: C07D487/04
Filed: 1960-06-28
Abstract: The invention comprises compounds of general formula: <FORM:0951652/C2/1> wherein R1 and R2 are alkyl radicals, wherein of X and Y one is nitrogen and the other is a radical -CH=, and wherein R3 is hydrogen or alkyl and R4 is hydrogen, alkyl or phenyl; and their preparation by the interaction of an amine HNR3R4 in an inert diluent or solvent with a heterocyclic sulphonyl halide of formula: <FORM:0951652/C2/2> which may be prepared by the interaction of a mercapto compound of formula: <FORM:0951652/C2/3> with a halogen in an aqueous diluent or solvent.  Mercapto compounds above are prepared by reacting carbon disulphide with an appropriate 2- or 6-hydrazinopyrimidine.  According to the Provisional Specification R1, R2, R3 and R4 may be hydrocarbon radicals and the sulphonyl halides are obtained by halogenation of the mercapto compounds.  The compounds of the invention have diuretic and anticonvulsive properties.
Patent GB-170943-A (GB)
Title: Improvements in or relating to packing case fastenings
IPC: B65D6/36
Filed: 1920-07-30
Abstract: 170,943. Evans, W., and Chappell Piano Co., Ltd. July 30, 1920. Corner joints.-The interlocking-portions of the fastening-plates 10, 11, for securing together parts of a packing-case, lie within the joint between the parts secured and are themselves secured by a. fastening screw 17 engaging both the interlocking- portions. The interlocking-portions consist of projecting bosses 12, 13 on the plates, the boss 12. having a conical recess 15 accommodating a conical projection 16 on the boss 13, both bosses being recessed concentrically with the parts 15, 16 for the reception of the screw 17 which screws into the boss 12. The plates may be of strip form provided with a number of interlocking portions extending across the, width of the parts secured.
Patent GB-598273-A (GB)
Title: An improved apparatus for the volume-measurement of powders or porous bodies
IPC: G01F17/00
Filed: 1945-09-04
Abstract: 598,273. Measuring cubical contents. ROSIN INDUSTRIAL RESEARCH CO., Ltd., and DEUTSCH, W. Sept. 4, 1945, No. 22762. [Class 106 (i)] Apparatus for measuring the volume of a powder or porous body comprises a mercury manometer 1, one limb of which is connected to. either one or two chambers 4, 6, one of which contains the sample. The chambers are exhausted by a vacuum pump connected to a pipe 11, the vacuum being measured by the manometer. Cock 5 is closed and cock 9 is turned to vent the chamber 6 to atmosphere. The cock 9 is then turned to. seal the chamber 6 from pump and atmosphere and the cock 5 is opened to equalize the pressures in the chambers 4, 6. The resultant indication of the manometer is a measure of the volume of the sample. The chambers 4, 6 may be reversed in position.
Patent GB-202171-A (GB)
Title: A barless grate
IPC: F24B1/193
Filed: 1922-08-23
Abstract: 202,171. Hindle, E., and Crook, R. Aug. 23, 1922. Grates and fuel-holders.-A barless grate, provided with loose ends A, Fig. 3, and intermediate portions C, Fig. 6, for easy attachment to various sized household grates, has the loose ends adapted to be clamped to short projecting ends E, Fig. 2, of the existing upper grate bar. This is effected by bolts a<3>, and clamping-pieces a<4>, Fig. 2. The loose ends are separated by slotted bars B, Fig. 7, cut to length and secured by bolts a<9>, Fig. 2, engaging slots b in the bars and slots a<10> in the loose ends A. Intermediate portions C, Fig. 6, adjustable in length by breaking off parts c, are accommodated in slots all in the loose ends. Notches a<1> in the loose end A engage bottom bars D in the permanent grate.
Patent GB-655605-A (GB)
Title: Improvements in or relating to dry-shaving apparatus
IPC: B26B19/42
Filed: 1946-08-01
Abstract: 655,605. Dry shavers. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Aug. 1, 1946, No. 22935. Convention date, Jan. 20, 1940. [Class 131] A dry shaver, having an apertured cutting plate 2 and a rotary or oscillatory cutter 5 with blades 6, is provided with a protective ring 9 spaced from the outer edge of the cutting plate and having a continuous, rounded edge 10 to provide additional support against the skin and to prevent irritation. The ring 9 which may be part of the nut which secures the cutting plate to the casing 12, or may be formed as a separate member, is adjustable to allow the edge 10 to be adjusted in the direction at right angles to the upper surface of the cutting plate.
Patent GB-520026-A (GB)
Title: Improvements in and relating to common crossings, and the like for railways and the like
IPC: E01B7/14
Filed: 1938-08-04
Abstract: 520,026. Railway &c. crossings. DUDLEY, W. H. Aug. 4,1938, No. 23037. [Class 104 (i)] In a crossing comprising a switch C pivoted at D to the frog A and coacting with wing rails B, the latter are secured to the continuation rails F by a machine-planed joint between points E and G. The pivotal connection D comprises a pair of fishplates J attached to C and a similar pair attached to A. The parts J<SP>1</SP> of the fishplates of C are bolted to a plate L through which a pivot pin K passes, and the parts J<SP>1</SP> of the fishplates of A are bolted to a similar plate L, the two plates L having a semi-circular bearing on each other. The pin K engages equally the switch C and the frog A. A supporting member M bolted to the wing rails B passes under the plates L, and has an opening to receive a projection L4 on plate L.
Patent GB-699386-A (GB)
Title: Classifier for material reduction mills
IPC: B07B7/01
Filed: 1951-10-03
Abstract: 699,386. Separating solid materials. WESTON, D. Oct. 3, 1951 [Aug. 1, 1951], No. 23065/51. Class 117 A classifier for the solid particles entrained by an airstream from a material reduction mill comprises two duct portions 18, 17 with longitudinal axes co-planar and intersecting at an angle between about 128 degrees and 94 degrees in a plane of intersection 30 at least 1.5 times the area of a plane of connection 26 to the first portion, a foraminous member 32 covering an opening in the base of the first portion on which fall particles above a certain size or weight which impinge on the wall of the second portion 17 and are brought to rest by it and means 19 for collecting particles which pass through the foraminous member. The particles not passing through the screen member 32 are returned to the reduction mill. The screen may be vibrated by a member 38. The portion 18 should have, for even flow, a length at least 2.4 times the mean diameter of the plane of connection 26 and its axis should intersect the wall of the portion 17 at an acute angle not less than 38 degrees. The portion 17 should have a length at least 1.5 times the mean diameter of the plane 30 of intersection. The air stream finally passes to a main products collector the air velocity. The outlet from the collector 19 is via an air lock 75. 'In a modification various classifier ducts are serially connected, of diameters increasing successively downstream, giving successive graded outputs from foraminous members at the bases of the ducts.
Patent GB-278509-A (GB)
Title: Improved means for locking wheels of vehicles
IPC: B62B5/04
Filed: 1926-09-20
Abstract: 278,509. Norris, H. G. Sept. 20, 1926. Guarding against unauthorized use.-Sliding bolts D', D<2> are adapted to engage with the wheels of vehicles such as tricycle box carriers. The bolts slide in tubes C<1>, C<2> and are operated by rods L<1> - - L<4>. To withdraw the bolts a, handle F<1> and rod F situated inside the box or other compartment of a vehicle are pulled and an angle H thereby caused to move a lever L<1> so that the lever L<3> moves towards a rod E, P against the action of a spring connecting pins R<1>, R<2>, withdrawing the bolts D<1>, D<2> The rods PL<3> are separated by a plate U having a hole containing a ball S. When a notch M in the rod L<3> is opposite a notch N in the rod P, the rod P is moved by the spring and the rods L<3>, L<2>, L<4> and the bolts D<1>, D<2> are locked in position by the ball. To lock the wheels the rod E is pushed inwards until the notches register, when the spring pulls up the rod L<3> into the position shown. The rod F projects outside the box while the handle F' is contained inside it, thus ensuring that the bolts cannot be withdrawn until the box or compartment is opened.