baber/WOPTO huggingface dataset:
Patent GB-1270695-A (GB)
Title: Hydraulically controlled shears
IPC: B23D35/00
Filed: 1969-04-18
Abstract: 1,270,695. Shearing. B.R.G. 18 April, 1969 [25 March, 1969], No. 20070/69. Heading B3W. In hydraulically-controlled shears including a movable blade 1 and a fixed blade (not shown) for cutting metal sheet, the rake angle of the movable blade is variable by means of a handoperated indicator (not shown) displaying the inclination for sheets of differing thickness and resistance to shear, a cam 4 controlled by the indicator, pilot valves 2a, 3a controlling the level of the ends of the blade 1a and means, such as the lever and pulley means shown, which transmit movement of the cam 4 to two valves 2a, 3a. To vary the stroke of the blade 1 for different sheet widths multiple gauging stops 12, for selective engagement with a switch 11 linked to a member moving with the blade 1a to limit downward movement of the blade, are provided. The stops are pivotally mounted on a lever 10 rigid with a plate 5, which is caused to move vertically by rotation of the cam 4, so that the height of the stop varies with adjustment of the rake angle of the movable blade.
Patent GB-590278-A (GB)
Title: Improvements in or relating to apparatus for viewing cinematographic film
IPC: H04N5/253
Filed: 1944-10-18
Abstract: 590,278. Television. CINEMA TELEVISION, Ltd., and WEST, A. G. D. Oct. 18, 1944, No. 20191. [Class 40 (iii)] Apparatus for viewing negative cinematograph films comprises a film scanning device from which signals are fed directly through a contrast inverting arrangement to an image reconstituting device for producing a positive picture. The contrast inverter may be as described in Specification 587,370, and may be arranged to be switched out for viewing positive film. Scanning may be effected by a cathode-ray beam scanning a screen of which the image is projected on a photo-electric cell, the reconstituting device also being a cathoderay tube driven from the same scanning generator as the scanning tube. The feeding of the film through the scanning gate can be continuous or intermittent and means may be provided for reversing the movement of the film to be viewed.
Patent GB-229208-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02B75/18
Filed: 1924-08-26
Abstract: 229,208. Cameron, F. F. Aug. 26, 1924. Valve gear.-Inlet an exhaust valves 34, 35 are worked by cam shafts 30, 31 through levers 32, 33 pivoted in sleeves 36, 37 fixed to the crank case, ball shaped portions of the levers preventing leakage of oil from the crank case.
Patent GB-239991-A (GB)
Title: Improvements in pulley blocks
IPC: B66D3/06
Filed: 1924-08-27
Abstract: 239,991. Andersson, C. B. Aug. 27, 1924. Pulley - blocks.-The block comprises one or more annular sheaves B mounted upon a hub A, A, or A, A', A, bolted together at a' and suspended on a swivel pin D or chock H. Pockets for lubricant may be formed in the sheave or in the lub or in both. The swivel pin D is formed with a head d ending the block, and with trunnions d<1> mounted in bearings g<1> in a two-part check E, and the pin swings in the slot d<2> of the shock. Fig. 9 shows the construction of a two-part chock for suspension from a derrick by the pin g, Fig. 3. Fig. 14 is an elevation of a two-part chock which is clamped around a boom G.
Patent GB-432614-A (GB)
Title: Improvements in luminous electric discharge lamps
IPC: H01J61/30
Filed: 1934-07-10
Abstract: 432,614. Glass manufacture. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent-Treuhand-Ges. fur Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin) July 10, 1934, No. 20256. Convention date, Aug. 21, 1933. [Class 56] [See also Group XL] Blackening of the envelope of a highpressure mercury-vapour electric discharge lamp is avoided by adding a small percentage of caesium to the mercury filling and by forming the envelope of glass containing not more than 60 per cent of silica and not less than 20 per cent of alumina. The composition of a glass containing also oxides of boron, magnesium and calcium is specified. The Specification as open to inspection under Sect. 91 comprises also percentages of alumina down to 15. This subject-matter does not appear in the Specification as accepted.
Patent GB-702353-A (GB)
Title: Improvements in wrapping machines
IPC: B65B35/34
Filed: 1951-08-28
Abstract: 702,353. Jigging conveyers. FORGROVE MACHINERY CO., Ltd., and BROOK, L. Aug. 6, 1952 [Aug. 28, 1951], No. 20258/51. Class 78 (1) [Also in Group XVII] In a-feeding and assembly apparatus for a wrapping machine comprising a table 26, Fig. 2, on which circular tablets, lozenges or the like are laid flat, a number of guides 35 leading from the table 26 to an intermittently moving chain conveyer 10, plough blades 36 in the guides for turning the articles on edge as they travel along the guides, and a gate 40, Fig. 1, for controlling the flow of articles from the guides to the conveyer pockets 38, the guides and table are disposed horizontally, or nearly so, at approximately the level of the upper flight of the conveyer 10'and supported on links or springs 17, 18, 22, 23 inclined to the vertical and a vibrator 45 is provided to impart a pitching movement to the table and guides. The conveyer pockets 38 are arranged to assemble the articles in horizontally disposed cylindrical stacks or rolls preparatory to wrapping. A plate 27 at the edge of the table 26 adjoining the guides 35 is reciprocated in a direction transverse thereto and assists the tablets to enter the guides without jamming.
Patent GB-850520-A (GB)
Title: Method and apparatus for coating the interior of pipes
Inventor: WEBB LESLIE WILLIAM
IPC: B05D7/22
Filed: 1956-06-29
Abstract: <PICT:0850520/III/1> A liquid coating layer is applied to the interior surface of an open-ended pipe by inserting into the pipe a unit having at least one partition member and at least one brush or spreader secured to one another in fixed axially spaced relation to provide a chamber or chambers for the coating material, enclosing the unit within the pipe by an end closure member, filling the chamber or chambers with coating material, and hauling the unit through the pipe in such a manner as to impart a rotary motion thereto.  As shown, the unit comprises skids 11 and 17, a partition member 1, e.g. of rubber and a set of brushes 5, these members being connected by a drag rod 9 which passes through a central bore in the skid 11 and is adapted to be connected by a socket 15 to a rotatable drag rod or rope.  The other end of the rod 9 is connected to a coupling 16 on the skid 17, to which the brush unit 5 is connected through a coupling 18 in such a manner that it can rotate with the rod 9. A filling container 2 is attached to the end of the pipe P, the brushes being positioned therein, and paint introduced through the funnel 23.  The unit is then hauled through the pipe, rotary movement being imparted to the brushes by means of the haulage rod.  Specifications 655,915, 684,584 and 756,037 are referred to.
Patent GB-531119-A (GB)
Title: Improvements relating to the joining of metal tubes by forging
IPC: B21C37/28
Filed: 1939-07-12
Abstract: 531,119. Making superheater return bends &c. SUPERHEATER CO., Ltd. July 12, 1939, No. 20298. Convention date, July 12, 1938. Addition to 503,479. [Classes 83 (ii) and 83 (iv)] In the manufacture of superheater return bends as described in the parent Specification, extra metal 13 is added to one or both tubes by tack welding and is forged and welded during the forging of the bend to farm a reinforcement of the crutch.
Patent GB-428256-A (GB)
Title: Closure valve for fluid pipes
IPC: F16K17/04
Filed: 1934-07-11
Abstract: 428,256. Fluid - actuated valves. HUBER, P., 7, Nebelbachstrasse, Z³rich, Switzerland. July 11, 1934, No. 20348. Convention date, Aug. 16, 1933. [Class 135] A valve device having a closure member biassed to the closed position and adapted to be opened by an increase of pressure in the fluid conduit such as that described in Specification 358,804, [Group XVIII], is provided with means for locking the valve in the closed as well as in the open position. In the form shown in the Figure a valve 7 controlling the outlet from a conduit 4 is loaded by a spring 14 and is opened by a spring loaded piston 3 subject to inlet pressure. The piston has a pin and slot connection with the valve spindle and in the inoperative position rests on a shoulder 23. Locking pawls 19, 20 having teeth 21, 27 co-operating with a collar 17 on the valve spindle serve to lock the valve in the closed and open positions, which catches are released by a cam 18 on a member 11 housed within the piston. In a modification the valve is actuated by a bellows and the locking pawls engage a groove in the valve spindle.
Patent GB-277161-A (GB)
Title: Improvements relating to machines for automatically slitting the base-pins of electric valves and like plugging devices
IPC: B23G9/00
Filed: 1926-08-18
Abstract: 277,161. British Thomson-Houston Co., Ltd., Harris., W. S., and Booth, J. Aug. 18, 1926. Milling-machines.-A machine for automatically slitting plugging-devices such as the basepins of electric valves comprises a work support consisting of co-operat:ng centres, one of which is movable by a cam and spring to grip and release the work while the other centre is of pyramidic form for effecting the indexing of the work. Cylindrical blanks having a centre mark at one end are supplied to a shoot 11, Fig. 3, from the bottom of which they are removed singly by an arm 14 having a recess 13 and pivoted at 22 to a slide 17 reciprocated by a cam 18 and springs 21. The arm places the blanks between centres 15, 16, Fig. 1, the latter being stationary and the former reciprocated to grip and release the blanks by means of a spring 29 and a lever 27 actuated by a cam 26. The centre 15 has a conical recess to centre the blanks and the centre 16 has a triangular point. On the return stroke of the slide 17 the arm oscillates slightly about the centre 22 to allow the recess 13 to clear the blank which has been gripped by the centres The blanks are slit by a saw 30, Figs. 1 and 3, carried by a shaft 31 rotated by a belt pulley 33 and carried by a lever 32 pivoted at 34 actuated by a cam 36. After one slitting operation the blanks are rotated through an angle of 90‹ for a further slit by means of a ratchet 41 secured to the centre 16 and engaged by a pawl pivoted to a disc 45 which carries a pinion 46 engaged by a rack 47 reciprocated by a cam 49. A spring plunger 42 engages an index plate 40 on the centre 16 to position the blanks. When the cycle of operations has been completed the centre 15 releases the blanks which drop into a shoot 52, Fig. 3. The shaft 19 which carries all the cams is rotated by worm gearing 53 and a belt pulley 54.
Patent GB-733117-A (GB)
Title: Improved photo-electric cathodes
IPC: H01J40/06
Filed: 1953-07-23
Abstract: 733,117. Photo-electric cells. LEITZ GES., E. July 23, 1953 [Aug. 6, 1952], No. 20467/53. Drawings to Specification. Class 39 (1). The efficiency of a photo-electric layer at a particular wavelength A is increased by backing it with a highly-reflecting mirror (which may be itself photo-electric) and spacing it from the mirror such a distance that the system acts as an interference filter with a minimum reflectivity at wavelength A, i.e. a distance (2n+1)#/4Œ# where n is zero or a small integer and # is a correction factor. The space is preferably filled with a transparent conducting layer such as cryolite. Specific thicknesses are given in an example and many references are made to publications on the art of interference filters and which give suitable values for #.
Patent GB-1273235-A (GB)
Title: Image generator
IPC: H04N1/405
Filed: 1969-04-22
Abstract: 1,273,235. Half tone copying. RCA CORPORATION. 22 April, 1969 [29 April, 1968], No. 20527/69. Heading H4F. A half tone reproduction of a continuous tone original is formed of dots of substantially constant size which are variably spaced in two coordinate directions according to the tones in the original. In the preferred embodiment, an analogue signal 41 representative of the instantaneous tone values in a transparency 13 is obtained from a flying spot scanner 24 and photodiode 38 and is passed, via a variable frequency multivibrator 42 and also via a tone digitizing circuit 44, to the central grid 122 of a cathoderay tube 130 which has bias control and deflection circuits 32 in common with the scanner 24. Circuits 42 and 44 determine respectively the spacing of the dots in a horizontal scan direction and in which ones of a certain group of scanlines such dots are to be reproduced i.e. the vertical spacings. The image on tube 130 is recorded in film 14. The multivibrator 42 is arranged so that transistor 48 is normally on, giving zero output, when signal 41 is zero. The R.C. combination feeding the base of transistor 48 is supplied with a constant input voltage V 1 , while the signal 41 is fed to the RC combination on the base of transistor 47. The output signal 45 is thus composed of a number of pulses of constant duration but spaced apart according to the level of the signal 41. The circuit 44 comprises detectors 70-76 of increasing threshold value, inverters 80-86 and "AND" gates 90-95 connected so that an output is produced at one of positions A-H indicative of a range of tone in which the instantaneous tone falls. The outputs A-H are connected to a number of "OR" gates 100-107 in the manner shown, the number of gates connected to an output varying with the output position, e.g. H is connected to all the gates, C is connected to only three gates. A circuit 120 counts horizontal sync. pulses from the circuit 32 and the output e.g. C1-C8 for a three bi-stable circuit, is fed together with the output from gates 100-107 to corresponding "AND" gates 110-117 which gate the pulses from circuit 42 to the grid 122. Thus for a signal 41 falling in the tone range corresponding to output C, only "AND" gates 110, 112, 114 are activated and pulses 45 are reproduced only on the 1st, 3rd and 5th lines of any group of 8 lines. By randomly varying the connections of outputs A-H to the "OR" gates 100-107 the production of visually disturbing vertical lines in areas of low spatial dot frequency is prevented. A printing plate may be produced directly from the half tone dots provided by a laser beam.
Patent GB-576065-A (GB)
Title: Improvements in agricultural implements
IPC: A01B33/02
Filed: 1943-12-09
Abstract: 576,065. Agricultural implements. DIXON, W. Dec. 9, 1943, No. 20580. [Class 6 (i)] Ploughshares or other tools are carried by a shaft 35 detachably mounted in links 37, 38 pivoted about the axles 15, 16 and driven through ratchet clutches 25, 27 on countershafts 23, 24 from the ground-wheel axles 15, 16 supported in a frame 11, 14. Pivoted pawls carried by the links 37, 38 engage quadrants on the frame to maintain the tools in the required position.
Patent GB-480856-A (GB)
Title: Improvements in or relating to rotary pumps, compressors, prime movers and the like
IPC: F04C2/44
Filed: 1936-07-25
Abstract: 480,856. Rotary engines. BOOTH, M. B. July 25, 1936, No. 20666. [Class 110 (ii)] Rotary vanes 9 are carried on spindles 13 in a rotor 1 and crank discs 11 are provided each with a pin 12. During the rotation of the rotor in a clockwise direction of motion, the vanes turn about their spindles in an anticlockwise direction being accommodated within recesses 8 during their passage past an abutment 4. Grooves 10 in the stator 2 co-operate with the vane tips to form seals. Inlet and outlet ports 6, 7, are provided. The pins 12 engage a disc 14 which rotates on a journal 15. In a modification, the pins 12 engage a cam groove in the stator, and may have rollers fitted. The degree of eccentricity of the groove with respect to the axis of the rotor I is equal to the effective length of a crank. The invention may be applied to engines, pumps, &c. described in Specifications 463,931, 464,096, 464,097, and 480,872.
Patent GB-707722-A (GB)
Title: Improvements in phonograph variable speed drives
IPC: G11B19/265
Filed: 1952-08-18
Abstract: 707,722. Driving sound reproducing machines. INDUSTRIAKTIEBOLAGET LUXOR. Aug. 18, 1952 [Sept. 7, 1951], No. 20689/52. Class 40 (2) [Also in Group XXIV] A gramophone variable speed gear, comprising a turntable 1 having a record supporting plane 3 above the base-plate 4 of the gramophone, is characterized by the driving shaft 13 of the gramophone motor 14, arranged wholly below the base-plate, having driving portions 10, 11, 12 of axially various diameter, these driving portions being brought to different levels without crossing the base-plate by axial movement of the motor, and by the edge 6 of the turntable extending downwards from the record supporting plane 3 through the baseplate which edge ends in a driving path 8 with which the various driving portions 10, 11, 12 can engage. Shafts 15, 16 are secured to the motor, the latter shaft being pivotable and axially slidable in a support 17 attached to the base-plate and the former being pivotable and axially slidable in a support 20 and carrying rotatably, but axially fixedly, a cam 23 having three different levels 24, 25, 26 for engagement with pins 21, 22 fixed in the supports 17, 20. The motor is at least partly held up by springs 27, 28, so mounted that they tend to turn it and its pivoted shafts 15, 16 in the direction necessary to engage the driving portions of the motor shaft 13 with the turntable driving path 8. The cam 23 is turned by an external control device, to move the motor 14 up and down and thus change the velocity ratio, and may be arranged to break the engagement between the driving shaft 13 and driving path 8 during the process of changing speed, so that the steps between the driving portions do not obstruct the axial movement of the motor. The turntable has rubber pads 9 on the surface 3 upon which a record normally rests, and the driving path 8 is constituted by a rubber ring; it may alternatively be formed by riveting together two parts of the shape shown, with the rubber ring sandwiched between the flanges at their edges. As a modification, the driving portions 10, 11, 12 on the motor shaft can be rubber covered to engage with the metal edge of the turntable.
Patent GB-220168-A (GB)
Title: Improvements in brake bands or braking surfaces for motor vehicles or the like, and to means for applying or carrying such brake bands
IPC: F16D69/04
Filed: 1923-08-17
Abstract: 220,168. Kenyon, P. G. Aug. 17, 1923. Band; blocks and shoes. - Brake bands or linings comprise asbestos, cotton or other fibrous material provided with a metal core having protruding ends by which the band may be attached to the actuating mechanism or to the metal shoe. In one form, two or more plies or cloths of woven asbestos b, asbestos reinforced with metal, or cotton may be bound together with one ply secured only at the edges so that a tubular form is obtained adapted to receive a strip of metal or woven wire a which may be barbed or punched to secure it to the fibrous material which may be impregnated. The protruding ends of the metal core a may be attached to the actuating mechanism for use in a band brake, Fig. 1, or to the metal shoes or holders c, Fig. 2, of an internal expanding brake, rivets passed through the actual braking surface being unnecessary. The band may also be formed by folding the asbestos cloth or other material and placing the metal core between one of the folds or the metal core may be covered with a sliver, strip or yarn of the fibrous material by a process of wrapping, winding or plaiting.
Patent GB-438071-A (GB)
Title: Universal beds for invalids
IPC: A61G7/002
Filed: 1934-07-17
Abstract: 438,071. Invalids' beds. DENIS, E. R., 47a, Rue du Coq, Marseilles, France. July 17, 1934, No. 20913. [Class 52 (ii)] The side frames of a bed for invalids comprise horizontal base portions and upright portions 2, Fig. 1, forming the end posts, the foot posts being joined to the base portions by curved parts of such radius as to enable the bed to be rocked thereon to any desired inclination. An adjustable support 16 holds the bed in inclined position. An upper bed comprising a frame 8, 9 with transverse straps 10 of fabric covered metal is removably fitted to the posts 2, 2, and a frame 3 supporting a mattress 7 is suspended from the main frame by cables 4 passing over pulleys 5 and wound on a drum 6. Wheels 19, 20, Fig. 2, which can be lowered to lift the frame from the floor, may be provided. In use, the patient lies on the straps 10 which are in contact with the mattress 7, and the frame 3 lowered for bandaging, dressing, or other treatment.
Patent GB-1223335-A (GB)
Title: Improvements in or relating to pump assemblies
Inventor: BUXTON GEORGE GEOFFREY
IPC: F04C11/00
Filed: 1968-05-03
Abstract: 1,223,335. Pump mountings. DRYSDALE & CO Ltd. May 2, 1969 [May 3, 1968], No.20987/68. Headings F1A and F1F. In a pump assembly comprising an axially slidable pump 1 mounted in a cylindrical outer casing 5 adaptable for rigid attachment to a support, relative rotation between the pump and casing is prevented by balls 13 in passages formed by grooves 12 and 11 respectively in the inner surface of the casing and outer surface of an annular cylindrical portion 2 of the pump. The cylindrical portion, which may be the pump housing, is provided with a pump discharge part 3, and a pump inlet 4 may be formed therein or in an end face of the pump. Inlet and discharge openings 7 and 8 are provided in the casing 5, and stops 14 are provided on the inner surface of the casing to ensure communication between the discharge port 3 and opening 8 at all times. (For Figures see next page)
Patent GB-331111-A (GB)
Title: Athletic knee shield for the protection of men's trousers
IPC: A41D27/12
Filed: 1929-07-06
Abstract: 331,111. Cooper, E. A. July 6, 1929. Pads.-A shield for protecting men's trousers during tennis and cricket comprises a knee pad 5 of suitable material such as elastic waterproof reinforced by strips 6 - - 9. The pad is supported by suspenders 10, 11 and is secured to the knee by leg bands 12, preferably of elastic material allowing entire freedom at the lower extremity of the shield.
Patent GB-1269452-A (GB)
Title: Dyestuff preparations and process for their manufacture
IPC: D06P1/92
Filed: 1970-05-01
Abstract: 1,269,452. Reactive dye compositions. CIBAGEIGY A.G. 1 May, 1970 [5 May, 1969; 31 March, 1970], No. 21042/70. Heading D1B. Dyestuff preparations which contain a fibrereactive dye free from sulphonic acid groups, an organic solvent and optionally a dispersing agent are prepared by grinding the components of the preparation. Monoazo and disazo dyes are used and suitable solvents include dioxan, pyridine, dimethylacetamide, diethylacetamide, glycol ethers, tetra-methylene-sulphone, dimethylformamide, ethylene carbonate, diacetone alcohol, anionic, nonionic and cationic dispersing agents may be used. The preparations preferably contain 20% or more by weight of dyestuff and may be used for dyeing synthetic fibres e.g. nylon and/or varified polyester or polypropylene fibres.
Patent GB-264410-A (GB)
Title: Improvements in or relating to gramophone cabinets
IPC: G11B33/02
Filed: 1926-08-27
Abstract: 264,410. Hibbard, C. G. Aug. 27, 1926. Cases.-A gramophone cabinet has two hinged covers a, a<1> adapted to fold back and form supports for records prior to use, and the upper part of the interior is divided transversely to house respectively the motor and turntable b and records arranged on edge in compartments c, the lower part housing the horn d and being provided with doors e, e<1> at the horn mouth.