baber/WOPTO huggingface dataset:
Patent GB-424642-A (GB)
Title: Improvements in or relating to electrical speed-indicators and revolution-counters
IPC: G01P3/48
Filed: 1933-08-26
Abstract: 424,642. Speed-indicators; revolutioncounters. BIRD, W. G., 11, Cranbrook Road, Redland, Bristol. Aug. 26, 1933, No. 23727. [Classes 106 (i) and 106 (iii)] Speed-indicators or revolution-counters for internal-combustion engines are operated by connecting them with the ignition system, which may be high-tension magneto or battery and high-tension coil, so as to measure the frequency or the numbers of pulsations or cycles in a given period of a pulsatory or alternating current or E.M.F. generated in the ignition system. A speed-indicating or revolutioncounting meter 7 is connected through a switch 8 across the terminals of a switch 6 connected to the primary coil 1 of the engine magneto. A secondary coil 2, contact-breaker 3, condenser 4 and distributer 5 are arranged as shown. The component devices of the meter 7 have a very large electrical impedance, so that a small leakage current passes through the shunt circuit when the switch 6 is open and the switch 8 closed, this current pulsating with a frequency proportional to the speed of the engine. A frequency meter of known type is used, for example, that described in Specification 422,202, [Group XXXVI]. Where the device 7 is a revolution counter, the pulsating current or E.M.F. is used to operate a synchronous motor actuating a mechanical counter of known type, the motor operating on the principle of the phonic wheel or of the motors employed in mains-operated electric clocks. A modification shows the meter 7 incorporated in the primary circuit of a high-tension coil ignition circuit. The broken lines in Fig. 1 indicate an alternative connection for the meter 7<1> by a tapping 11 across a part of the secondary winding.
Patent GB-225186-A (GB)
Title: Improvements in ignition plugs for starting heavy oil engines
IPC: F23Q7/00
Filed: 1924-10-08
Abstract: 225,186. Bosch Akt.-Ges., R. Nov. 23, 1923, [Convention date]. Incandescent igniters. -The end of the insulated conductor band its connection with the incandescent filament f are entirely enclosed within the insulation c, the channel e and other cavities within the insulation being preferably filled with cement introduced before the rod b is screwed into the insulator c.
Patent GB-245388-A (GB)
Title: Device for indicating sparking and other disturbances in, and for automatically cutting out transformers, choke coils, and other electrical apparatus operating in an insulating medium
IPC: H01H33/55
Filed: 1925-03-24
Abstract: 245,388. Buchholz, M. March 24, 1925. Addition to 198,936. Transformers.-A device for protecting transformers and other electrical apparatus operating in an insulating medium comprises a switch operated by the physical or chemical action on a substance of the vapours formed by sparking or other disturbances in the apparatus. The vapours may either impinge on a substance such as spongy platinum c, Fig. 1, whereby heat is produced, and gas contained in a vessel b expands to cause a column of mercury to bridge contacts, or the vapours may impinge, on a substance c, Fig. 2, which thereby becomes heavier and tilts a lever e to close contacts. The substance c in this case may again be spongy platinum or any other substance which absorbs gases in a similar manner, or it may be a substance which combines chemcially with the gases.
Patent GB-976928-A (GB)
Title: Improvements in or relating to self-locking drive mechanism for venetian blinds
IPC: E06B9/322
Filed: 1962-06-20
Abstract: 976,928. Cone brakes. BRETSCHER & CO. June 20, 1962 [June 21, 1961], No. 23824/62. Heading F2E. A venetian-blind shaft has a bevel gear drive combined with an automatic locking device, comprising a driven gear-wheel 14, an idle wheel 15 driving a first collar 22 through a tooth connection 23, and a braking member 30 and a second collar 32, both loosely spigoted on the first collar 22 to provide a lost motion coupling and having co-operating corrugated interfaces 40, the second collar 32 having a projection 33 slotted into a groove in the drive shaft 17. The shaft is driven by the gear wheel 15 engaging the first collar 22, which drives the second collar 35. When the drive is stopped, the shaft 17 continues to rotate a small amount, causing the second collar 35 to force the braking member 30 against the housing, thereby preventing further rotation of the shaft.
Patent GB-535732-A (GB)
Title: Improvements relating to the control of electrically operated winding or like mechanisms
IPC: B66C13/26
Filed: 1939-08-18
Abstract: 535,732. Non-regenerative braking of A.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., LIDDIARD, H. W. C., and HARTSHORN, J. S. Aug. 18, 1939, Nos. 23878/39, 27210/39 and 19/40. [Class 38 (iii)] A motor M operating winding mechanism is braked by disconnecting it from the supply and feeding its primary winding with direct current from two seriesconnected exciters E1, E2, the former supplying a constant voltage determined by a regulator R2, and the latter, driven by the motor, supplying a voltage varying in accordance with motor speed. In a modification the motor is fed from an exciter having two field windings fed respectively from the exciters E1, E2, a reversing contactor or a rectifier circuit preventing reversal of the field supplied from the exciter driven by the motor. In a further modification an exciter supplying the motor has three field windings, one supplied from a constant voltage source, a second in series with the feed to the motor, and a third supplied from an exciter driven by the motor. The secondary resistance is controlled in steps and additional resistances in the output circuit of the exciter driven by the motor are varied simultaneously with the secondary resistance. Specification 518,476 is referred to.
Patent GB-1071073-A (GB)
Title: Method and apparatus for continuously winding up slivers of glass staple fibres
IPC: B65H67/048
Filed: 1964-06-09
Abstract: 1,071,073. Winding slivers continuously; doffing. W. H. W. SCHULLER. June 9, 1964 [June 20. 1963], No. 23921/64. Headings DID and D1J. Slivers of glass are continuously wound by traversing them onto a bobbin 2 at a station I by means of a grooved drum 1 that is in driving engagement with the resulting package 3 on the bobbin 2. As the package 3 increases in diameter a two-armed lever 5, carrying the drum 1 at one end and a balance mass 6 at the other end, is slowly rocked to a setting in which it causes a switch arm 7 to close a switch 8. Closure of the switch 8 causes a motor 10 to rotate a bobbin changer 15 in the direction of the arrow B to move the fully wound bobbin to station II and move an empty bobbin 2a at station III to station I. The bobbin 2a then takes over the sliver f issuing from the grooved drum 1 and the portion of sliver extending between stations I and II is traversed over one of the cutting blades 26, 27, 28 to sever the slivers extending between stations I and II. The correct rotation of the bobbin changer 15 is controlled by contact arms 17, 18, 19 rotating in synchronism with changer 15 and operating a switch 20 to determine the instant at which the drive motor 10 shall stop. After said instant a brake shoe at station II is automatically actuated to clamp the fully wound package at station II against reverse rotation and so prevent the slivers thereon being wound back onto the bobbin 2a. The return movement of the pivoted grooved drum 1 toward the bobbin changer 15 after the full bobbin 3 has left the winding station 1 is retarded to permit the next empty bobbin to move into the winding station.
Patent GB-240825-A (GB)
Title: Improvements in or relating to the sleeve valves of engines, compressors or pumps
IPC: F01L7/04
Filed: 1925-09-25
Abstract: 240,825. Martin, E. H., and Lemasson, R. P. F. Oct. 1, 1924, [Convention date]. Valves, arrangement of.-A rotary sleeve valve 1 for compressors or pumps is arranged to have slight axial movement due to frictional action of the engine &c. piston 21, in order to ensure proper lubrication and fluid-tight working, this axial movement being damped by springs 15, 16. provided at the ends of the valve. The lower end of the valve has tongue-and-groove connection 11, 12 with a hollow worm wheel 7 driven by a worm 8. The valve is packed by means of a broad ring 19 pressed outwards by a spring 20 and by other rings 17, 18 on the cylinder head and the valve respectively. The valve has a port 4 controlling inlet and exhaust ports 5, 6.
Patent GB-266401-A (GB)
Title: Improved manufacture of priming material for coating porous bodies
IPC: C09D5/00
Filed: 1925-09-26
Abstract: 266,401. Frenkel, E. W., and Brust, A. J. H. Sept. 26, 1925. Fillers.-Printing compositions for coating porous bodies comprise a solid, specifically light, inorganic, water-soluble pore-filler in substantially stable suspension in an oily vehicle and an agent to maintain the suspension. Suitable porefillers are light oxide or carbonate of magnesium, light diatomaceous earth, champagne chalk (a form of talc) or levigated alumina. The oily vehicle is preferably a fatty oil such as linseedoil The agent for maintaining suspension is preferably an altered oil or mixture thereof, such as the solid or viscous products obtained by oxidizing fatty oils or treating them with thickening agents such as sulphur or sulphur chloride. Coagulated wood oil may also be used- It is preferred to use viscous products, and when solid products are used they are best ground after swelling in fatty oils and turpentine substitutes. The compositions may contain a thinner such as benzole or turpentine substitute, and resins, driers, varnish, &c. In examples thereis described suspensions of (1) Light magnesium oxide in linseed oil and oxidized linseed oil, (2). Light magnesium oxide in linseed oil, oxidized linseed oil and coagulated wood oil, (3) Light magnesium oxide in linseed oil and the reaction product thereof with sulphur chloride.
Patent GB-762641-A (GB)
Title: Twin-lens reflex camera
IPC: G03B13/20
Filed: 1954-08-18
Abstract: 762,641. Photographic cameras. STEINECK, R. Aug. 18, 1954, No. 24105/54. Class 98(1) In a twin lens reflex camera which can be attached to the wrist, the focusing aperture is located in the upper face of the case and is approximately parallel to the plane of the film 25 in the exposure aperture to which light is reflected by a mirror 23 the plane of the film being parallel to the axes of taking lens 17 and viewing lens 18. Preferably, the axis of the viewing lens 18 is closer to the plane of the film than the axis of the taking lens 17 and mirrors 19. 23 are trapezoidal and are arranged with their shorter edges nearer the lenses and their longer focusing edges nearer a ground-glass screen 20 in the aperture and film 25, respectively. The lenses may be arranged in a single mounting 3 and may be interchangeable or they may be of different focal length. Sprocket 33 is coupled to shutter 34 so that the shutter is set as the film is advanced. The exposed film is wound on spool 28. A viewing lens 21 may be provided and the ground-glass screen may be adjustable for focusing. Alternatively the lens 21 may replace the ground-glass screen. The lens mounting 3 may be at a fixed distance from the image receiving surfaces and focusing may be effected by adding supplementary lenses, with or without colour filters. A spirit-level may be attached to the camera and a presser plate 30 having a spring 31 may be provided.
Patent GB-1460514-A (GB)
Title: Hinge fitting for seats particularly the seats of vehicles such as motor vehicles
IPC: B60N2/90
Filed: 1974-05-30
Abstract: 1460514 Adjustable seat hinges KEIPER KG 30 May 1974 [1 June 1973] 24108/74 Heading A4J [Also in Division E2]  A vehicle seat hinge comprises two plates 12, 13 pivoted at 27 and an adjustable locking mechanism having three radially movable toothed locking members 22 which slide outwardly on member 12 to engage an internal toothed portion 14 of member 13 when engaged by a rotatable cam 26, and which are disengaged from the toothed portion by tracks 31 in a plate 30 fast with the cam. Projections 24 on the locking members engage in the tracks 31 which are shaped to draw back the locking members when they are no longer acted on by projecting surfaces of the cam 26. A handle (not shown) rotates the pivot 27 to which cam 26 and plate 30 are secured and a spring (not shown) biases the pivot to the locking position. As shown a cover 15 secured to plate 12 at 16 overlaps plate 13 at three points 19 beneath which are defined locations for the locking members. Guide ribs 23 on the locking members slide in radial slots 25 in the cover 15, and the projections 24 are mounted on the ribs. In other embodiments, the slots 25 could be formed in plate 12, the plate 30 be mounted on the other side of plate 12 or the guide ribs 23 and projections 24 be on opposite sides of the locking members.
Patent GB-518133-A (GB)
Title: Improvements in or relating to combustion product engines
IPC: F02B19/00
Filed: 1938-08-16
Abstract: 518,133. Rotary engines. WEILAND, K. W. Aug. 16, 1938, No. 24117. Convention date, Sept. 1, 1937. [Class 110 (ii)] [Also in Group XXVII] A combustion chamber 5 to which fuel is admitted through a nozzle 6 is formed as an' insert in a head 2 from which it is separated by a helical rib 3<1>. Thus a movement of rotation is imparted to air which traverses a passage formed between the insert and the head. Air is delivered to the chamber through a passage' 7 by sliding vanes on the rotor as they move towards the chamber whereas combustion gases leaving by the passage 9 act on the varies moving away from the chamber. Ports 9<1> in the passage 9 are controlled by a regulating valve 10<1>. Exhaust gases escape through a passge 14 and air is admitted to the pump side of the chamber 1 through a passage 13.
Patent GB-1118925-A (GB)
Title: Improvements in and relating to rotary regenerative heat exchangers
Inventor: HRYNISZAK WALDEMAR
IPC: F28D19/04
Filed: 1964-06-10
Abstract: 1,118,925. Thermal regenerators. C. A. PARSONS & CO. Ltd. 16 July, 1965 [10 June, 1964], No. 24121/64. Heading F4K. A rotor in a thermal regenerator comprises a matrix disc of glass ceramic or other non- metallic heat transfer material formed with passages permitting fluid flow therethrough in the direction of the axis of rotation of the rotor, the disc being mechanically connected to a metallic rim and/or hub by means of radial members which project from the rim and/or hub into corresponding holes in the heat transfer material. Each said member may comprise a short projection, e.g. 4a or 4b, and/or rods 4 extending radially between the hub and the matrix. The members 4, 4a, 4b may be of circular; oval or rectangular cross-section and of metal or ceramic material. Where the members comprise rods 4, these extend through ceramic sleeves 12 (Figs. 10, 11) in the heat transfer material. The rods 4 are preferably located at the " cold " end of the matrix. The rim and hub may each comprise a corrugated metal band arranged next to the matrix and surmounted by a plain metal band, or arranged between two such bands. The matrix shown comprises four sectors meeting at joint lines 14 and the hub and rim are also in sections. The assembly is held together by the rods 4.
Patent GB-429719-A (GB)
Title: Improvements in machines for making sanitary napkins
IPC: A61F13/15
Filed: 1934-08-21
Abstract: 429,719. Feeding webs. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(International Cellucotton Products Co. ; 180, North Michigan Avenue, Chicago, U.S.A.) Aug. 21, 1934, No. 24150. [Class 100 (i)] [See also Group VI] In a machine for making sanitary napkins means are provided for feeding strips of cushioning material torn off from a continuous roll on to a moving gauze strip. Rolls 27' of cushioning material such as loosely felted cotton are mounted in ball-bearing members engaged by recesses in arms 37 which are urged downwards against the action of springs 40 so that the rolls rest on conveyers 28 and the strip is continuously unwound. When a roll is nearly exhausted the arms 37 are depressed, permitting it to roll back on to supporting brackets 41 arranged to receive the bearings, a new roll being positioned and manually supported until the end of the old roll is reached. The strips pass along metal guide shoots 43 of reducing width which are laterally adjustable and fitted with contact arms adapted to close an electric circuit and stop the machine if the strip feed ceases. The gauze strip is fed from a roll 23<3> over a guide roll 50 to a conveyer belt 51 which travels faster than the cushion strip conveyers 28. The cushion strips 27 pass between feed rolls 52, 53, Fig. 5, and are torn into short lengths by a breaker roll 74 carried from a shaft 68 which is provided with an arm 76 engaged by a rotary cam 77 causing the roll 74 to be pressed intermittently against the strips. To cause the new leading end to follow the gauze strip, a suction box 82 having branches 83, 84 is employed which causes the cushion strip to lie flat on the gauze. Further, the arm 76 carries one of a pair of electric contact elements 85, 86 which, if the arm moves downwards due to rolling of the strip 27 upon the roll 74, engage to close a circuit stopping the machine.
Patent GB-909941-A (GB)
Title: Condensation of ketones to prepare higher molecular weight ketones
IPC: C07C45/74
Filed: 1960-07-12
Abstract: Catalysts suitable for converting C3-C6 ketones to higher ketones comprise 70-84% (by weight) of a Group II(a) metal oxide (Zn, Cd or Hg) and 16-30% of a Group IV (a) metal oxide (Ti, Zr or Hf).  The catalyst is preferably supported on an inert carrier such as brass turning, metallic chips, pumice, porcelain, g -alumina or calcined coke.  The preferred catalysts are those containing 80-84% of zinc oxide and 16-20% of zirconium oxide.ALSO:Higher molecular weight ketones are made by contacting at an elevated temperature an acyclic C3-C6 ketone with a catalyst comprising 70-84% (by weight) of a Group IIb metal oxide and 16-30% of a Group IVa (titanium sub-group) metal oxide.  The catalyst is preferably supported, for example on brass turnings, metallic chips, pumice, porcelain, g -alumina or calcined coke. The preferred temperature range for carrying out the process is 780-850 DEG F. and the preferred pressures are from atmospheric to 5 atmospheres.  An improved yield is obtained if hydrogen is introduced into the reaction mixture.  The preferred catalyst is one containing 80-84% of zinc oxide and 16-20% of zirconium oxide. Suitable starting ketones are, for example, methylethyl ketone, methylpropyl ketone and methylisopropyl ketone.  In the examples acetone is converted to mesityl oxide with some methyl isobutyl ketone, higher ketones, phorone and isophorone.  The mesityl oxide may be catalytically hydrogenated to give methyl isobutyl ketone.
Patent GB-1131765-A (GB)
Title: A method for continuously producing flat mats by a moulding process
Inventor: LEEDY ARTHUR AUSTIN
IPC: B29C69/02
Filed: 1966-06-01
Abstract: 1,131,765. Rollers. SEILON Inc. 1 June, 1966, No. 24332/66. Heading F2U. [Also in Divisions B3 and B5] A roller for moulding a series of flat mats comprises an inner sleeve 51 separated, by a space 52 for a heating or cooling medium, from an outer sleeve 40. The outer sleeve is comprised of several interconnected arcuate die plates each of which is provided with a mould pattern 41 surrounded by a cutting blade 38. Each die plate may comprise a rolled plate of steel or brass or a rolled plate composed of a chromeplated rigid copper shell backed by a thick lead layer.
Patent GB-605200-A (GB)
Title: Improvements in coin freed automatic vending machines
IPC: G07F5/26
Filed: 1945-09-20
Abstract: 605,200. Coin-freed article-delivery apparatus. WITTENBORG, E. Sept. 20, 1945, No. 24410. Convention date, Dec. 30, 1940. [Class 27] Coin action, multiple - coin, with stationary coin forming abutment. A row of drawers 1, or other delivery devices, is interconnected with a coincontrolled mechanism by means enabling any one of several prices to be allotted to each drawer, said means comprising a series of stop rods 16 extending across the drawers and provided with removable stops 20 which block full opening of a drawer if the requisite coins have not been inserted. The drawers 1 are connected to a common actuating bar 3 to which is secured a carriage 4 on which is pivotally mounted a series (three as shown) of coin feelers 6. The three different coins are inserted through separate slots, and come to rest at the bottom of side-by-side chute sections 11 in a position to be engaged by pins 7 projecting from the feelers 6. Upon opening a drawer, the actuating bar 3 moves the feelers to cause their pins 7 to enter the chute sections, and those feelers which encounter a coin are rocked clockwise to clear tongues 8 from abutments 13 at the ends of the stop rods 16 leaving these stop rods unactuated. Those feelers whose corresponding chute sections contain no coin are not rocked, and their tongues 8 displace the corresponding stop rods 16 by engaging their abutments 13. The stops 20 on the stop rods coact with notches 22 in transverse bars 21 carried by the drawers, and are adapted to enter the notches to prevent full opening of a drawer when their stop rod is displaced. If, therefore, a drawer is pulled without the requisite coins having been inserted one or more of the stop rods 16 will be displaced each to bring its stop 20 into locking engagement with a notch 22 on the drawer so locking it against full opening. Each drawer can be adjusted for any combination of the three coins by attaching a stop 20 for each coin required in the appropriate position on the appropriate stop rod 16. Gaps 23 in the bars 21 provide clearance for the stops 20 of the other drawers than that being operated. Splitter bars 26 prevent more than one drawer being operated at a time.
Patent GB-1505666-A (GB)
Title: Process for regeneration of a granular material bound by resins
IPC: B22C5/18
Filed: 1975-06-06
Abstract: 1505666 Regenerating foundry sands SOC D'APPLICATIONS DE PROCEDES INDUSTRIELS ET CHIMIQUES 6 June 1975 [7 June 1974] 24440/75 Heading B3G Foundry sands used in moulding are regenerated to eliminate carbon and acidity resulting from the use of a resin binder by eliminating the carbonaceous material accumulated around the grains of material and residual acidity with an oxidation and/or neutralization treatment other than calcination. Many examples of materials used are given.