baber/WOPTO huggingface dataset:
Patent GB-411608-A (GB)
Title: Improvements in and relating to the keyboard mechanism of typographical composing machines
IPC: B41B11/18
Filed: 1933-02-22
Abstract: 411,608. Type-bar-making machines. HART, H., 9, Kingsway, London.-(Mergenthaler Linotype Co. ; 29, Ryerson Street, Brooklyn, New York, U.S.A.) Feb. 22, 1933, No. 5402. [Class 100 (iii).] Keyboards; escapements.-In order to facilitate the spacing- out of lines, means are provided for connecting the spaceband key to any one or more of a number of keys that serve to release spacematrices. The device may also be used to connect the spaceband key to any other of the matrix-keys. The em-space, en-space, and thin-space key-levers F are formed rearwardly of their pivot points B<1> with slots F<5>, which are adapted to receive pins on three arms E mounted on the rock-shaft D<1> that carries the spaceband key D<2>. The arms E can slide without turning on the shaft, their motion being limited by pins and slots. Any one of the arms can be moved, so as to cause its pin to engage the slot in the corresponding key-lever F, by means of rods E<5> provided with knobs E<9>. Means are provided for preventing the release of a spaceband when the spaceband key is depressed, in cases in which a line is to be composed without spacebands. This is effected by an interponent movable by hand into the path of one of the two pivoted arms, the downward movement of which releases a spaceband from the magazine. The pins on the arms E may overlie or underlie the keylevers F, instead of engaging in slots therein.
Patent GB-1483393-A (GB)
Title: Distillation plant
IPC: B01D3/06
Filed: 1975-02-07
Abstract: 1483393 Distillation plant ATOMENERGI AB 7 Feb 1975 5424/75 Heading BIB A distillation plant comprises a shell 1 having partitions 4 which define a heat supply chamber 3 and a group of vapourising chambers 2 arranged for the flow of heated distilland therethrough, a set of condensation tubes 6 extending from an inlet manifold 7, each tube having portions thereof disposed in at least two vapourising chambers and being of a plastics material within chambers 2, condensate being collected in chambers 2 by means of troughs 5, at least one condensation tube having a portion within the heat supply chamber 3. The tubes may pass through individual apertures in partitions 4 or they may pass as a bundle through a single sealed aperture (Fig. 2).
Patent GB-718395-A (GB)
Title: mprovements in or relating to mechanism for actuating the spark wheel of smokers' lighters
IPC: F23Q2/08
Filed: 1952-03-03
Abstract: 718,395. Frictional pocket lighters. RONSON PRODUCTS, Ltd. (Ronson Art Metal Works, Inc). June 3, 1953, [March 3, 1952; May 6, 1952.] Nos. 5491/52 and 11393/52. Class 75 (3). A mechanism for actuating the spark wheel in a smoker's lighter with a snap action comprises an actuating structure adapted to rotate the spark wheel against the force of a compression spring supported at its remote end by an abutment member held in position by a latch movable by interaction with the actuating structure to release the abutment member and allow the actuating movement of the structure. As shown, a finger piece 5 integral with the ratchet teeth 2 for rotating the spark wheel and closing the end of a tubular member 1 sliding in a housing 11, is retained in its unoperated position by a spring 10 compressible between the piece 5 and a sleeve 9 slidable within the tube 1, the movement of the piece 5 being obstructed by the shoulder 8 of a latch pin 7 engaging the end of the sleeve 9, the pin being retained out of coaxial alignment with the housing 11 by a spring 12 compressible between a wedgeshaped foot 14 of the pin and the end of the tube 1 until on depression of the piece 5 and compression of the spring 10 the end of the piece 5 eases the coned end of the pin into the recess 6 of the piece 5 releasing the shoulder 8 from the sleeve 9 and suddenly allowing the finger piece 5 to move forward. In an alternative form the latch pin 7 has a flat top engaging with an inturned edge on the top of sleeve 9 and has a conical shoulder engaging a conical surface on the tube 1 to disengage the latch pin from the sleeve 9. The actuating mechanism may comprise a finger piece pivoted on the lighter casing and directly carrying the ratchet teeth 2 and operating on a domed end plug in the tube 1.
Patent GB-1100569-A (GB)
Title: A process for preparing acrylic latexes
Inventor: SNYDER WALTER CLARENCE
IPC: C08F220/06
Filed: 1966-02-08
Abstract: An aqueous latex of an acrylic polymer prepared from a single monomer mixture containing acrylic or methacrylic acid an alkyl ester of methacrylic acid or alkyl esters of both acrylic and methacrylic acid contains 25 to 60% by weight of solids which comprise 90 to 97% by volume of polymer particles having an average diameter of 0.4 to 1.0 micron and 10 to 3% of polymer particles of average diameter 0.05 to 0.1 micron.  The latex is prepared by (1) heating an aqueous solution of a catalyst to up to 85 DEG  C.; (2) adding 1/3 of the monomer mixture with agitation; (3) conducting polymerization for at least 15 minutes; (4) adding an aqueous solution of an anionic emulsifier and catalyst and (5) adding the remainder of the monomer mixture over a period of at least 45 minutes.  The latex may be derived from a monomer mixture comprising (A) 45 to 70% of at least one ester of acrylic acid and a primary alcohol containing 1 to 8 carbon atoms, (B) 25 to 55% of at least one ester of methacrylic acid and an alcohol as in (A); and (C) 2.5 to 5% of acrylic or methacrylic acid. In Example I a latex of a quaternary polymer of ethyl acrylate, n-butyl acrylate, methyl methacrylate and methacrylic acid is produced and in Example II a latex of a terpolymer comprising 2-ethylhexyl acrylate, methyl methacrylate and methacrylic acid, the catalyst and emulsifier used in each case being sodium persulphate and dioctyl sodium, sulphosuccinate respectively.  On completion of polymerization the pH of the latexes is adjusted to 8 to 10 e.g. with NH3, NH4OH, KOH or an amine.  The latexes of the examples are mixed with aqueous pigment slips comprising TiO2, the sodium salt of a condensed sulphonic acid, aliphatic butynediols and octynediols in solution in ethanol, and methyl cellulose, to yield enamels.
Patent GB-500836-A (GB)
Title: Improvements in and relating to the mounting of guns in aeroplane wings and other hollow bodies, subjected to wind pressure
IPC: F41A27/10
Filed: 1938-02-22
Abstract: 500,836. Gun mountings. MARTIN, J., and MARTIN-BAKER AIRCRAFT CO., Ltd. Feb. 22, 1938, No. 5524. [Classes 92 (i) and 92 (ii)] Means for screening the interior of an aeroplane wing 1 or other hollow body containing a gun 2 from air pressure or gases around the gun barrel 3 comprises a blast tube 4, adjustable as to length and sealed at each end where it movably abuts against the gun and the hollow body, the front abutmentbeing readily detached from the body to permit removal of the blast tube. In the form shown, the front part of the blast tube 4 engages by a part-spherical joint 9 within an opening formed by a tube 6 attached to the front of the aircraft wing 1. The rear part of the tube 4 is in the form of a telescopic section 5, pressed rearwardly from the tube 4 by a spring 20, and having a part-spherical bearing member 16 engaging a corresponding member on the gun cooling-jacket. The parts are retained by screwing a cap 14 into the front of the tube 6, and the removal of the cap by a special tool permits of the removal of the blast tube through the front opening in the wing.
Patent GB-381827-A (GB)
Title: Direct interlocking device for the breech block and the firing pin of automatic fire-arms
IPC: F41A5/18
Filed: 1932-02-24
Abstract: 381,827. Automatic guns. SCOTTI, A., 24, Via Silvio Pellico, ANELOTTI, G. B., 34, Via del Sebino, and CAMPI, B. G., 15, Via Monte Grappa, all in Brescia, Italy. Feb. 24, 1932, No. 5542. Convention date, Feb. 24, 1931. [Classes 92 (ii) and 119.] A breech-bolt 5 which is urged along guide grooves 5b, 5c towards the closed position by the firing-pin 4 under the action of a spring 6 is positively locked in the fully closed position by projections 4a on the pin which can only engage recesses 5d in the breech-bolt when the latter has been rotated into the locking position by the inclined portions 5c of the guide grooves. After firing, the projection 4c on the firing-pin is engaged by a gas-operated rod 3 or by the recoiling barrel to move the pin rearwardly to unlock the breech-bolt.
Patent GB-557913-A (GB)
Title: Improvements in brakes for electric motors
IPC: H02K7/102
Filed: 1942-04-24
Abstract: 557,913. Electromagnetic brakes. CHILMAN, J. A. April 24, 1942, No. 5550. [Class 103 (i)] [Also in Group XXXVII] A motor subject to different loadings in the two directions of rotation e.g. used to adjust the blades of a variable-pitch propeller is provided with a friction brake released to different extents according to the direction in which the motor is running. A friction disc 16, Fig. 1, is urged against a plate 13 on the armature shaft by two sets of springs 18, 21. When the motor is energized in the "light loading" direction i.e. towards a fine pitch of the propeller a pot magnet 24 is energized to attract its armature 20 and thus relieve the disc 16 of the pressure disc to the springs 21, and when energized in the "heavy loading" direction i.e. towards a coarse pitch of the propeller both the magnet 24 and a concentric magnet 25 are energized, so that both armatures 20 and 15 are attracted and the brake is completely released. The circuit is shown in Fig. 2. Switch 34 is closed to adjust towards coarse pitch and switch 33 is closed to adjust towards fine pitch, a switch 36 limiting the extent of this adjustment. For reverse setting of the propeller, switch 35 is closed so that the limit switch 36 is by-passed and another brake release coil 26, wound adjacent coil 25 is energized so as to give complete release of the brake.
Patent GB-838658-A (GB)
Title: A method for the manufacture of ammonium sulphate
IPC: C10K1/10
Filed: 1957-02-19
Abstract: <PICT:0838658/III/1> Ammonium sulphate is obtained by spraying dilute sulphuric at different levels into a tower down which a co-current of gases from a coke furnace passes, and the quantity of dilute acid injected is such that the acid content does not decrease by more than 1% before the acid reaches the crystallizer at the base of the tower, although in the crystallizer the acid content is between 2.5 and 3.5%.  The coke furnace gases enter tower 3 at 4 and are withdrawn below truncated conical sheet 5 through pipes 7 and cyclone 26, where acid is separated.  Dil.  H2SO4 is supplied by pump 9 at different levels of tower 3 by atomizers 8 at rates regulated by valves 10, 24 so that the pressures at the atomizers are the same regardless of height.  The atomizers 8 should be identical and of large diameter, to avoid choking, producing droplets of average 2 mm. diameter.  The liquor passes down through shoot 11 to crystallizer 2 whence coarse (NH4)2SO4 crystals are withdrawn by pump 12 to vat 13, whence crystals pass to drier 14 and mother liquor to 2. Liquor is withdrawn through 16 to tank 17, where water and acid are added as necessary, and recycled by pump 9 through lines 21, 22.  The latter includes heat exchanger 23, whereby all, or part, of the recycled liquor may be heated, so that excess water may be evaporated and carried off with the gases.  Pump 25 circulates the liquor in the crystallizer.
Patent GB-377129-A (GB)
Title: Improvements in wires for making wreaths and the like
IPC: A01G5/04
Filed: 1932-02-25
Abstract: 377,129. Wire. KRAUSEN, C., 56, Casinostrasse, Aachen, Germany. Feb. 25, 1932, No. 5646. Convention date, Nov. 2, 1931. Drawings to Specification. [Class 83 (ii).] A wire for making wreaths, floral decorations, &c., is provided with lateral projections adapted to prevent the flowers &c. from slipping or shifting on a hoop bent from the wire. In one form, the wire is of circular cross section provided along its entire length with tapering ribs extending at right-angles to the plane of the hoop. Alternatively, spaced projections such as tapered pins may project from opposite sides of the wire.
Patent GB-314313-A (GB)
Title: Improvements relating to automatic telephone systems
IPC: H04Q3/42
Filed: 1928-02-25
Abstract: 314,313. Siemens Bros. &. Go., Ztd., and Christian, D. A. Feb. 25, 1928. Automatic exchange systems. -In a system in which subscribers on the same party-line call each other directly, unnecessary holding of the exchange apparatus that becomes associated automatically with a calling line, e.g. a first selector or register controller, is avoided by dialing a special number before making such calls, whereupon the exchange apparatus is released and sends a signal to prevent the line from seizing further apparatus and to mark it busv. The invention is described with reference to a. system which, apart from modifications incidental to the above provision is identical with that described in Specification 311,666. Detailed operation. When the special interparty number is dialled, shaft springs kk on the register RS change over, and on the relapse of the dialling relay D, RL pulls up, locks itself, connects battery over 5<2> and the metering wiper M<1> to LO and releases B to iree the register controller and link circuit. LO locks up and holds cut-off relay CO to mark the line busy and prevent it from seizing further exchange apparatus. If the subscriber fails to dial the special number, the exchange apparatus is freed after a time interval as described in the Specification referred to above. CO fails back and L re-operates locking PG and energizing PL which gives an alarm.
Patent GB-582793-A (GB)
Title: Improvements in electrical relays
IPC: H01H47/14
Filed: 1945-03-09
Abstract: 582,793. Electromagnetic switches. BRITISH ELECTRICON (LONDON), Ltd., and CHAMBERS, W. A. March 9, 1945, No. 5959. [Class 38 (v)] An electromagnetic relay having an armature 11 which tilts one way or the other under the differential action of two coils 1, 2 is provided with a third coil 9 which serves to hold the armature in the central position shown until there is a predetermined difference in the currents in the coils 1, 2. A keeper 5 connects the lower ends of the cores of the three coils and the three coils all tend to send a flux in the same direction through the central core 10. The armature rests on a non-magnetic plate 12 and tilts with it about one or other of the edges X, Y of the plate, to close contacts 13, 14 or 13', 14<1> respectively. A bowed spring 22 serves to conduct current to the contacts 13, 13<1> and also to restrain the armature from swinging. Specification 521,621, [Group XL], is referred to.
Patent GB-1373835-A (GB)
Title: Communication transmission system for transmitting digital signals
IPC: H04L7/00
Filed: 1972-02-09
Abstract: 1373835 Digital data transmission systems KABEL-UND METALLWERKE GUTEHOFFNUNGSHUTTE AG 9 Feb 1972 [3 March 1971 5 June 1971] 6065/72 Heading H4P [Also in Division H1] In a PCM transmission system employing a cable having a number of stranded symmetrical pairs of conductors along which are a number of regenerators, one conductor pair is used exclusively for sending synchronizing signals to the regnerators and a final receiver and means are provided to compensate for the different transit times of each conductor pair introduced by the different lengths of lay in the cable. Compensation may be effected by introducing carbonyl iron powder into the insulation of the cable to delay the signals on some conductors relative to others. Alternatively at the regenerators, or at the transmitter or receiver, sampling pulses for the PCM signals corresponding to different conductor pairs are derived from the synchronizing signals with appropriate delays. Each conductor pair may carry several PCM channels in TDM fashion. The synchronizing signals may be at bit frequency or at character frequency from which bit timing signals are derived at the regenerators or at the receiver, or alternatively both bit and character timing signals may be sent on respective conductor pairs.  The cable may comprise a number of bunches of stranded pairs, e.g. four, with two bunches for each direction of transmission or two separate cables laid side-by-side for the two directions of transmission or alternatively layer stranding may be used. The conductor pairs may be constructed as a star-quad, with a central core containing the carbonyl iron powder. A particular star-quad may carry character and bit timing signals on respective pairs of the quad.
Patent GB-1498496-A (GB)
Title: Controlled discharge pressure pump for pumping liquids
IPC: F04B53/10
Filed: 1975-02-13
Abstract: 1498496 Centrifugal and positive displacement pumps A PETIT & CO SARL 13 Feb 1975 [14 Feb 1974] 6161/75 Headings F1C and F1F A variable flow liquid pump has means responsive to the discharge pressure and flow-rate for limiting the buildup in the discharge pressure resulting either from increased impeller speed or the closing of valves in the outlet externally of the pump. Liquid enters a pan 1 via a port 2A and enters a centrifugal impeller 4 via an inlet valve 7 controlled by a float 10, it is then discharged via a delivery duct 9 and outlet 2B connected via ports 28a and a check-valve 24 closed by a spring 26. A tapered portion 39 of the valve spindle 25 throttles a duct 37 to control liquid flow from a restricted passageway 31 to pan 1. A ram comprising a cylinder 36 and piston 34 biased by a spring 33 communicated via a chamber 32 with duct 37 and includes a rod 35 which may abut a spindle 7a to reduce the opening of valve 7. During normal operation, valve 24 is fully open, tapered portion 39 causing minimum obstruction of duct 37 resulting in a minimum pressure drop along the duct, the pressure in chamber 32 is therefore insufficient to operate the ram. If the impeller speeds up, the discharge pressure increases and consequently so does the pressure within chamber 32 until the ram is activated to close valve 7 reducing the inflow to the impeller 4 and also the discharge pressure. If the outlet flow is reduced by the closing of an external valve, the consequential reduction of the opening of the flow sensitive valve 24 increases the throttling of duct 37 by tapered portion 39, and the pressure in chamber 32 increases activating the ram to close valve 7. A liquid degassing device 20 is secured to the upper part of pan 1. In another embodiment, Fig. 3, (not shown), the centrifugal pump is replaced by a positive displacement pump having a by-pass duct in which is located a flow control valve operated by the ram which as before is activated by a check-valve in the outlet. In this instance, build up in discharge pressure activates the ram to open the flow control valve.
Patent GB-482168-A (GB)
Title: Improvement in secondary electron emission electrode
IPC: H01J1/32
Filed: 1937-03-02
Abstract: An electrode for an electron multiplier consists of an alloy of 99 per cent of nickel and 1 per cent of barium.
Patent GB-287165-A (GB)
Title: Improvements in or relating to holding devices for dental crowns, stoppings and the like
IPC: A61C19/00
Filed: 1928-02-28
Abstract: 287,165. Dehne, K. March 17, 1927, [Convention date]. Teeth, artificial; teeth, stopping. - A work-holder for a dental crown,* stopping &.c. l, during grinding or other operations, comprises pivoted arms g formed with gripping jaws m and provided with pins h guided in cam slots f in a rotary disc d controlled by a spring b, so as normally to hold the jaws together. The jaws may be moved apart by pressure on the handle e so as to rotate the disc d against the action of the spring. The appliance has a dishshape cover plate n to retain ground off particles of gold &c. In a modification the jaws engage the interior of a gold shell or crown and are pressed outwardly by the spring.
Patent GB-1417035-A (GB)
Title: Allotting time slots and adding addresses to pcm words
IPC: H04Q11/04
Filed: 1973-02-08
Abstract: 1417035 Automatic exchange systems TELEFONAKTIEBOLAGET L M ERICSSON 8 Feb 1973 [8 Feb 1972 (5)] 6348/73 Heading H4K In a TDM exchange incorporating a timespace-time network through which PCM channels are switched, preferably in a paralle format, incoming and outgoing PCM speech words are respectively cyclically written-in and read-from respective word memories during the first half of a time slot and are respectively acyclicly read-out and written-in the respective word memories during the second half of a time slot. The address, of an outgoing link to which a word must be directed through the space switch, precedes the word during the first half of each connection time slot. The particular description is identical with that of Specification 1,417,033.
Patent GB-346917-A (GB)
Title: Improvements in taps or cocks for controlling the flow of liquid
IPC: F16K27/02
Filed: 1930-02-26
Abstract: 346,917. Valve accessories and components. BAINBRIDGE & CO., Ltd., H. W., Grosvenor Buildings, Steel House Lane, and BAILEY, H. A., 30, Hawthorn Road, King's Norton, both in Birmingham. Feb. 26, 1930, No. 6353. [Class 135.] Casings protecting covers; making, processes for.-A tap or cook casing made from a hot blank or billet by means of dies and machining operations comprises an integral body having coaxial openings 19, 20, Fig. 5, in the upper and lower ends, and an inlet passage 21, the lower opening being subsequently closed in, as at 16, Fig. 2, and the upper opening enlarged by machining as at 15. The upper and lower chambers are then connected by a partly annular passage 18, or by an arcuate series of bored holes. The casing is completed by a spindle and stuffing-box, as shown, and by a screwed-on protecting cap or cover 2.
Patent GB-311029-A (GB)
Title: Improvements in control arrangements for motorcycle and like vehicles
IPC: B62M25/04
Filed: 1928-03-01
Abstract: 311,029. Alexander, G. C. March 1, 1928. Control mechanism. -In control mechanism of the twist-grip type for motor-cycles &c., a pinion connected to the rotary grip engages a rack slidable in guides at right-angles to the axis of the grip, the rack being connected to a Bowden wire, rod, or like transmission; a second co-axial rotary grip or sleeve may be similarly connected to a second transmission. A sleeve 2 provided with a grip 3 is revolubly mounted on a handlebar 1, and carries a segmental pinion 4, Figs. 1 and 2, meshing with a rack formed on a sleeve 5, which is perforated to receive a Bowden wire &c. 6. A sleeve 7 is mounted around the sleeve 2, and is provided with a knurled boss 8, for operation by the thumb, and with a segmental pinion 9 engaging a rack 10 to actuate a second Bowden wire &c. The sleeve 7, and if desired the sleeve 2, are frictionally held in adjusted position by spring-pressed washers 12. The pinions 4, 9 and their racks are mounted in a casing consisting of a body 14 and a cap 15 clamped by screws 16 around the handle-bar-