baber/WOPTO huggingface dataset:
Patent GB-543222-A (GB)
Title: Improvements in radio frequency phase shifting circuit arrangements of the rotary field type
IPC: G01S1/02
Filed: 1940-08-08
Abstract: 543,222. Phase shifting. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and WHITAKER, L. W. Aug. 8, 1940, No. 12754. [Class 38 (ii)] [Also in Group XL] A rotating-field radio-frequency phase shifter capable of operation with wide side-band frequencies comprises an adjustable pick-up coil RO inductively related to two stator coils ST1, ST2 which are energized in phase quadrature by two push-pull valve pairs V1 V2, V3 V4. The input is applied at terminals X, Y across an impedance with its mid-point 0 earthed. Across the input terminals are connected two phaseshifting shunts each comprising a condenser C10 and a resistance R10 with a 22¢ degrees impedance angle. The two shunts are connected in opposite senses across X, Y, and the voltages at A, B are in anti-phase and are applied to the grids of the valves V1, V2. Another pair of shunts R10, C11 of which the phase angle is 67¢ degrees have their intermediate points C, D connected to grids of the valves V3, V4, their excitation being again in anti-phase but in quadrature with the voltages applied to the valves V1, V2. The gain in the four valves is equalized by adjustable screen-grid resistances R6, R7 and by a variable resistance R14 which adjusts the grid bias of the valve V3, V4. In a modified arrangement, one pair of grids is connected to the input terminals X, Y and the other pair to intermediate points of two oppositely-connected shunts each having a 45 degrees phase angle (Fig. 3 not shown). The phase-shifter is intended for use in spaced-frame radio direction finding, in steerable receiving systems, and in apparatus for determining the polarization of incident waves.
Patent GB-240760-A (GB)
Title: Improvements in or relating to paper or like sheet feeding machines
IPC: B65H7/12
Filed: 1925-05-15
Abstract: 240,760. Toronto Type Foundry Co., Ltd., (Assignees of Hitchcock, R.). March 11, 1925, [Convention date]. Stopping and like arrangements.-In connection with a sheet-feeding apparatus, the feeding of more than one sheet at a time is prevented by passing the sheets between an adjustably mounted member and a rotary member which causes rotation of the adjustable member if two sheets are fed, and an eccentric portion of the adjustable member grips the sheet with a wedging action and also brings into action a device for stopping the automatic feed of the sheets. As applied to a sheet-feeding machine in which the sheets are fed from a fanned-out pile by a rotary suction roller d, the apertures of which co-operate with an internal suction chamber connected to a suction port d<1>, the separated sheets pass over rollers b, b<1> of a forwarding table. Above the roller b is mounted an idler roller f and a counterweighted sector e weighted at e<4> in such a manner that an arm e<2> on the sector e normally rests on an abutment bar e<3>. The parts e, f are mounted in a spring-depressed lever g<1> controlled by a screw h<11> so as to permit the passage of a single sheet between the roller b and the parts e, f without rotation of their shaft g. The roller f, and sector e are adapted to rotate in unison if two sheets are fed over the roller b, as indicated in Fig. 2, and the sheets are then pinched by a wedging action due to the action of an eccentric part e<1> of the sector e, or due to the mounting of the sector on an eccentric bush e<6>. The pinching action obtained between eccentric e<1> and roller b causes an arm e<11> on shaft g to operate a valve j<11>, j<3> to connect the suction port of the feeder to atmosphere, and thus prevent feed of other sheets until the top sheet is removed by hand from between the rollers b, f. As soon as the eccentric port e<1> has passed beyond the roller b, the roller can continue to rotate without marking the sheet. Other forms of throw-out mechanism for the sheet-feed may be employed.
Patent GB-777174-A (GB)
Title: Improvements in or relating to electric incandescent lamps
IPC: H01K1/22
Filed: 1955-05-03
Abstract: 777.174. Electric incandescent lamps. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Mav 3, 1955 [May 6, 1954]; No. 12803/55. Class 39(2) In an electric incandescent lamp having a filament-supporting arbor 4b formed by a glass tube supported by the pinch 5 of the lamp an exhaust aperture 7 is provided in the arbor in the region where it is fused into the pinch. In the example a stem tube 1, Fig. 1, filament supporting wires 2, 3, and a length of glass tube 4 are aranged in the usual manner with their relative spacings and, after heating and compressing by means of pincers are united to form a pinch 5 which divides the tube, 4 into two parts 4a, 4b as shown in Fig. 2. Air is blown into the open ends of the said two parts of the tube while the glass is in a plastic state, thereby forming two-apertures 6, 7 in the region where the respective parts adjoin the pinch 5. A thickened portion or button 8 is subsequently formed on the lower end of the tube part 4b, and short radial filament supporting wires secured therein in the usual manner. The bulb 12 is finally sealed to the stem tube and evacuated through the exhaust tube 4a, the gas contents of the arbor 4b being removed through the apertures 7 and 6 respectively.
Patent GB-372934-A (GB)
Title: Improvements in apparatus for opening and pressing seams
IPC: D06F71/34
Filed: 1931-05-01
Abstract: 372,934. Pressing seams. BRAITHWAITE & SON (ENGINEERS), Ltd., I. and TANNER, H., Ibis Works, Kendal, Westmorland. May 1, 1931, No. 12833. Addition to 324,512, [Class 138 (ii), Washing, mangling, &c.]. [Class 138 (ii).] The valve g<3> by which steam is passed from the heating chamber b to the perforated chamber b<1> from which it issues on to the seams of the clothing as in the parent Specification is opened for an adjustable period during the closing movement of the press and is closed either before or immediately the press closes so that the pressure may be maintained between the press members without steam being passed. The valve spindle H is pivoted to a bell-crank lever K which is pivoted at k to a bracket L secured to the valve casing and is provided with a pawl M normally drawn by a spring m<1> into contact with a stop m. The pawl engages a striker N during the closing movement of the press head to rock the bell-crank lever counterclockwise and open the valve g<3> against its spring h. On the continued downward movement of the head the pawl swings clear of the striker and the valve closes. During the opening movement of the press when the pawl engages the striker the pawl is rotated against its spring without rotating the bell-crank lever. The striker is adjustable horizontally in a bracket N<1> which is adjustable vertically relatively to the stationary guide c<1> for the press head.
Patent GB-149458-A (GB)
Title: Seed-sowing machine
IPC: A01C7/16
Filed: 1919-05-22
Abstract: 149,458. Norman, W. May 22, 1919. Seed-distributors.-Apparatus for sowing seeds comprises a J-shaped receptacle from which the seeds are delivered by brushes D and rubber vanes E attached to a disk secured on the axle of a disk wheel F which is mounted in a U-shaped piece G provided with a handle. The receptacle is formed by connecting together two J-shaped metal pieces A by means of a bent strip of metal which increases in width towards both ends. It is connected to the fork G by a bent piece of metal K. The axle is held in the fork G by set-screws fitting into holes in the ends of the axle. The handle fits into a piece of metal tubing H which is flattened at the end and riveted to the U-shaped piece G. The discharge of seed is regulated by means of a slide I perforated with holes of various sizes.
Patent GB-787551-A (GB)
Title: Air conditioning unit
IPC: F24F1/0071
Filed: 1956-04-26
Abstract: 787,551. Unit air-conditioning apparatus. AMERICAN RADIATOR & STANDARD. SANITARY CORPORATION. April 26, 1956 [May 5, 1955], No. 12865/56. Class 137 In an air-conditioning unit comprising a core consisting of a blower assembly 1, a heat exchanger and drip pan unit 2 and a filter box unit 3, the drip pan 30 has pan portions which extend beneath the heat exchanger when the unit is disposed horizontally as well as vertically. The drip pan 30, extending across two sides of the heat exchanger composed of finned pipes 27, has a front wall 31 and a right angularly disposed wall 32, both walls having flanges on three of their edges to form a complete pan. Drain pipes 33, 34 are provided. Two plates 35, 36 disposed on the outer faces of two end plates 25, 26 supporting the heat exchange tubes 27, direct condensate from reverse bend couplings 37 into the drip pan 30 when the unit is vertical. The blower unit consists of a cylindrical centrifugal rotor 10 having its shaft ends rotatably mounted within recesses 46 in a pair of plates 44 removably fitted within flanged openings 41, 42 formed respectively in side plates 39; 40 of a rotor casing also having a front plate 54 joined to an arcuate plate 55 and a rear arcuate plate 56 which is joined to a baffle plate 38 for directing air, drawn through the unit by the rotor 10, over the pipes, 27. Two perforated sound absorbing plates 59, 60 extend from the upper edges of the two arcuate plates 55, 56 to an outlet 12. The filter box 3, accommodating a filter unit 7, has an inlet opening 5 leading to a source of fresh air and an inlet opening 6 communicating with recirculated air, the proportion of recirculated to fresh air entering the unit being determined by the position of a damper 19 which is mounted on end plates 20, 21 pivoted to end panels 15, 16 of the filter box 3. An over centre tension spring 23 is provided for retaining the damper in full, or dotted line positions, a number of holes 24 being provided in one end plate 15 for adjusting the tension of the spring. A motor, not shown, for driving the rotor is mounted on a plate extended beyond the plate 39. For mounting the core unit withing a casing, there are provided a pair of brackets such as 62 and a rubber pad 64.
Patent GB-1378995-A (GB)
Title: Brake apparatus
IPC: B61H7/08
Filed: 1973-03-16
Abstract: 1378995 Fluid pressure brakes KNORRBREMSE GmbH 16 March 1973 [17 March 1972] 12893/73 Heading F2F A braking arrangement for a rail vehicle wheel 4 has an eddy current disc brake comprising a stator 15, a rotor 14 and electromagnets 16 actuated individually or in groups such as in pairs by pressure switches 13 arranged to operate at different pressure levels by the air pressure of a separate friction brake system, the torque on the eddy current brake acting to regulate the friction brake pressure. For a braking operation, reduction in pressure in a main air pipe 6 results in a brake control valve 7 being actuated to permit air pressure from a reservoir 9 to pass via lines 8, 10 to actuate one or more of the switches 13 according to the degree of braking set by the air pressure. The torque of the eddy current brake is transmitted via a support 19 to a pressure converter 20 fixed to the vehicle frame whereby a piston 27 thereof is caused to move rightwardly to unseat a valve plate 26 and permit air pressure from reservoir 9 to pass via lines 33, 34 to a chamber 35 of a triple valve 11. The pressure established in chamber 35 biases a piston 40 leftwardly in opposition to the rightwardly acting pressure on a piston 44 coupled thereto through a valve tube 41, which pressure is established in a chamber 36 connected to control line 10. When the pressure in chamber 36 exceeds that in chamber 35, pistons 44, 40 move rightwardly whereby valve tube 41 unseats a valve plate 48 allowing air pressure to pass from line 10 through chambers 37, 39 and line 38 to operate brake cylinder 3. The pressure building-up in chamber 39 restores equilibrium across pistons 40, 41 and thereby producing a specific braking torque. As the torque generated by the eddy current brake diminishes when the wheel decelerates the force on torque support 19 decreases so that valve tube is lifted, by the pressure in chamber 21, from valve plate 26 whereby chambers 21 and 35 are vented through a throttle 31. The pressure in chamber 36 then displaces valve tube 41 rightwardly to once again unseat valve plate 48 and apply pressure to brake cylinder 3. In this manner decreasing braking torque of the eddy current brake is compensated by the higher braking torque generated by the friction brake. In the event of failure of the eddy current brake full braking pressure is applied to the brake cylinder 3.
Patent GB-1040085-A (GB)
Title: Merchandise vending devices
Inventor: RENFIELD CECIL
IPC: A47F1/08
Filed: 1965-03-26
Abstract: 1,040,085. Dispensing articles. ROTHMANS OF PALL MALL Ltd. March 26, 1965, No. 13023/65. Heading A4T. A vending device comprising vertical slots down which the stacked articles move as the lower one is removed, has the slot framework covered by a shell of the same shape on a large scale as the articles vended, the shell terminating short of the lower vending openings. The shell has side cheeks carrying pins engaging slanting framework slots.
Patent GB-774620-A (GB)
Title: Improvements in laminating solutions, laminating stock and laminated products
IPC: C08G63/676
Filed: 1955-05-05
Abstract: A solution for laminating cellulosic material (see Group VIII), comprises (1) a polymerizable polyester of a polybasic acid of which at least the major proportion is an alpha-beta unsaturated dicarboxylic acid (e.g. maleic, fumaric, itaconic or mesaconic) and a polyhydric alcohol of which at least the major proportion is a diol of formula <FORM:0774620/IV(a)/1> where R is an alkylene radical having 2-3 carbon atoms, A is a 2-alkylidene radical having 3-4 carbon atoms, m and n are at least one and the average sum of m and n is not over 3; (2) a water-soluble melamine-formaldehyde resin; (3) water; and (4) a water-soluble ketone solvent for the polyester (e.g. acetone or methyl ethyl ketone).  The solution may also contain a vinyl monomer, e.g. styrene, vinyl toluene, divinyl benzene, diallyl phthalate, diallyl phenyl phosphonate, the diallyl ester of ethylene glycol dicarbonate or diethylene glycol bis-(mono allyl carbonate) and a vinyl polymerization catalyst, e.g. benzoyl peroxide, succinyl peroxide, peracetic acid or tertiary butyl perbenzoate. Specification 722,264 is referred to.
Patent GB-887077-A (GB)
Title: Double cone shaft mounting means
IPC: F16D1/091
Filed: 1959-04-16
Abstract: 887,077. Securing turbine rotors on shafts. AVERY, B. A. April 16, 1959, No. 13056/59. Class 80 (2). [Also in Group XXVI] A double-cone shaft mounting, e.g. for the inner and outer shafts of a gas turbine, has a collet 9 with a conical bearing face, a collet nut 11 threaded both internally and externally, and a tightening nut 13 screwed on the external collet nut threads and engaging the outer of the two members to be joined. The mounting is tightened by screwing up the collet nut and the tightening nut alternately. The tightening nut has a flange 13a to engage the outer member.
Patent GB-1354521-A (GB)
Title: Structural system
IPC: E04B1/32
Filed: 1971-05-04
Abstract: 1354521 Building constructions; domes ZOMEWORKS CORP 4 May 1971 [4 May 1970] 13056/71 Headings E1A and E1W A three-dimensional building construction for example in the shape of a hexadron, enneacontahedron or a triacontrahedron 44, Fig. 4, comprises a plurality of interconnected elements forming a continuous surface of mutually adjacent faces, each face being in the shape of a "primary", "secondary" or "tertiary" diamond having acute and obtuse angles of 63 26' 06" and 116 33' 54" / 70 38'44" and 109 28' 16" / 41 48' 38" and 138 11'22" respectively. For mathematical desiderata giving rise to the constructions to-gether with cell structures built up therefrom to form arches and composite buildings the Specification and remaining drawings, (not shown), should be referred to. Each face may be constructed from a planar sheet or consist of a series of linear structural elements which each define a lateral edge thereof.
Patent GB-715925-A (GB)
Title: An improved electric fan
Inventor: FELTON FREDERICK DUDLEY
IPC: F04D29/64
Filed: 1952-05-23
Abstract: 715,925. Screw fans. REVO ELECTRO CO., Ltd. May 26, 1953 [May 23, 1952], No. 13074/52. Class 110(1) The driving motor of an electric fan is accommodated within a part-spherical housing which is urged by resilient means into contact with the annular rim of a fixed outer casing. The outer casing 2 is secured to the ceiling by means of a fixing plate 1 and is of spherical formation around a circular hole through which projects a semispherical housing 4 for the motor. A double leaf spring 9 presses against a part-spherical cover 8 to urge the housing 4 into contact with a rubber beading 3. The arrangement allows the angular setting of the fan to be adjusted.
Patent GB-1087412-A (GB)
Title: Treatment of textile materials
Inventor: EWING WILLIAM HENRY
IPC: D06Q1/00
Filed: 1964-03-31
Abstract: Textile sheet material is treated by a method including in combination the steps of first treating the material to impart localised disturbance in the configuration of the components of the sheet in space and subsequently applying an elastomer or elastomer forming compound to a number of preselected randomly or uniformly distributed discrete areas on one or both faces of the sheet, said steps being carried out under such conditions that the localised disturbances in the configuration of the components of the sheet in space reform after the sheet is deformed to remove such disturbances and allowed to recover.  The textile sheet material may comprise a sheet in woven, knitted, netted or likewise fabricated form formed from any natural or artificial fibre.  In Example 1 a plain weave fabric of linen yarn having virtually no stretch properties is treated to increase the crimp in the weft threads and the sheet is printed on one face with a polyurethane resin by passing the fabric over a roller coated with the resin to provide 'bridges' of elastomer between a substantial proportion of all adjacent peaks of weft threads, whereby the sheet is given stretch properties in the direction of the weft threads.  In Example 2 a plain weave fabric of linen yarn is stretched in the warp direction to produce a reduction of dimension in the other direction, then printed with polyurethane resin on one face over localised areas which define a regular pattern, e.g. spaced strips parallel to the weft threads and subsequently stretched in said other direction, whereby the sheet is given a puckered relief surface.
Patent GB-737746-A (GB)
Title: Improvements in the testing of the insulation of electric conductors
Inventor: MEADOWS STANLEY GEORGE
IPC: G01R31/12
Filed: 1952-05-23
Abstract: 737,746. Testing insulation resistance. SOUTHERN UNITED TELEPHONE CABLES, Ltd. May 26, 1953 [May 23, 1952], No. 13146/52. Class 37. In apparatus for testing the insula. tion of a number of conductors in sequence through a series resistor the device which normally operates to connect the next conductor to the test voltage fails to operate if the insulation of the conductor under test is defective or below the standard required. The invention is described with reference to testing the quads of a communication cable. In the Figure, following closure of start switch X relay A operates and locks and energizes B which also locks whereby the quads 30-33 are coupled to the test apparatus and test voltage 28 is injected into the first line 33 through resistor 26. If wire 33 is sound neons 21-22 glow and relay C operates and if wires 32, 31 and 30 are also satisfactory their neons 21-22 and relays D, E and F respond in sequence through individual resistor 26 to test-voltage 28. If a wire (e.g. 31) has defective insulation the leakage current means a reduced voltage to earth at the junction of the insulation resistance and the test resistor 26 so that neons 21-22 fail to strike and the relay concerned E will not operate to connect the next wire 30 to the test voltage 28. The operator knows that 31 is defective because only the neons 21-22 for 33 and 32 are glowing. When F operates a slugged relay G is energized and A and B revert to disconnect the lines 30-33 from the test apparatus. When G operates apparatus may be introduced which connects another group of wires for testing in place of 30-33 or connects 30-33 to different testing equipment.
Patent GB-1198248-A (GB)
Title: Centrifugal Switching Means for D.C. Motor Speed Control
Inventor: HURST JAMES EARL
IPC: H02P7/06
Filed: 1969-03-13
Abstract: 1,198,248. Protective arrangements. EASTMAN KODAK CO. 13 March, 1969 [22 April, 1968], No. 13168/69. Heading H2K. [Also in Divisions G3 and H1] A centrifugal switch (see Division H1) used to regulate the speed of an electric motor 10 has a lamp 64 connected across its contacts 36, 38 such that during normal operation the lamp is illuminated intermittently but when the voltage of a battery 16 supplying the motor falls too low the contacts remain closed and the lamp remains extinguished. The circuit may be rearranged so that the lamp remains on to indicate low voltage.
Patent GB-239148-A (GB)
Title: Shoe trees
IPC: A43D3/14
Filed: 1925-05-20
Abstract: 239,148. Small, R. D. May 20, 1925. Trees.-A shoe tree of the type having the toepiece divided longitudinally so that it can be spread apart by a wedge member is characterized by toe-pieces 3, 4, Fig. 5, pivoted at 13 to links 16 connected at 17 to a stud acting as a guide in a slot 18 of a wedge 11. The sides of the wedge act on the studs 13 to force the toe members apart. The forward end of the toe-pieces carry studs 14 embraced by a yoke 15 forming part of the wedge member. The wedge is connected to a link 5, Fig. 1, frictionally engaged by a closed loop 6<1> on an upright link 6 pivoted to a heelpiece 2. The heel-piece is T-shaped, Fig. 3, and carries a shoe horn 8 pivoted thereto at 9.
Patent GB-132185-A (GB)
IPC: B24D13/08
Abstract: 132,185. Levett, A. March 7, 1919. Polishing-appliances. -Strips of fabric &c. are wound around a hub so that the outer edges of the material form the working surfaces of a polishing or buffing disk. The complete disk, Fig. 2, comprises several units, the whole being held together by outer flanges 15, and bolts 16. Each unit is made by winding the fabric 10, shown in dotted lines in Fig. 8, around the outer surface of a former consisting of two disks 21, 22 holding the unit hub-piece 14 between them. When a sufficient number of turns has been laid, the middle part of the fabric is forced into the space between the disks and is secured to the hub by means of a cord 20, the fabric then occupying the positions shown in full lines. In order to give more fullness to the disk, intermediate pieces of material 25, 27, and 32, 33 may be folded lengthways and stitched to the original piece 10, as shown in Fig. 5. A filling-strip 40 is similarly attached at the centre of the fold 11. The reinforced fabric is then secured to the hub piece as before. This construction enables the buffing or polishing disk to be worn practically down to the hub-piece with a minimum of waste.
Patent GB-1166803-A (GB)
Title: Method for Producing a Polymer by Photo-Irradiating a Monomer in a Solid State
IPC: C08F2/46
Filed: 1968-03-19
Abstract: 1,166,803. Photopolymerization of diunsaturated monomers. AGENCY OF INDUSTRIAL SCIENCE & TECHNOLOGY. 19 March, 1968 [20 March, 1967; 9 June, 1967; 9 Jan., 1968], No. 13236/68. Heading C3P. Polymers of the formula are obtained by the photopolymerization of a monomer of formula wherein and or and or R 1  is COA and R 2  is Formula VII, wherein A is hydroxy, OR where ROH is an aliphatic alcohol or a phenol, amino, or NHR 3  or N(R 3 ) 2  where NH 2 R 3  or NH(R 3 ) 2  is an aliphatic or aromatic amine. The monomer has a crystal structure in which two aliphatic double bonds between the molecules which react with each other are arranged at a distance of less than 4 A. The reaction may be carried out in the solid phase or with the crystals dispersed in an organic medium and with stirring. The specified compounds of the above formula are 2,5- distyrylpyrazine, 1,4 - bis - [# - pyridyl - (2) - vinyl] benzene, and p - phenylene diacrylic acid and derivatives thereof.