baber/WOPTO huggingface dataset:
Patent GB-617277-A (GB)
Title: Improvements in or relating to signalling over electric pulse communication systems
IPC: H04Q1/42
Filed: 1946-07-08
Abstract: 617,277. Pulse signalling. STANDARD TELEPHONES & CABLES, Ltd., and TREADWELL, C. G. July 8, 1946, No. 20301. [Class 40 (v)] Relates to an arrangement for receiving a control signal transmitted over a channel of a time modulation pulse communication system by shifting the pulses of the channel from one given time position to another. In the embodiment described, the time-modulated channel pulses are produced by a multivibrator comprising valves 1, 2, Fig: 1, of which valve 1 is normally cut off. Trapezoidal negative-going pulses A, Fig. 2, modulated in amplitude by the communication signal, are applied through condenser 17 to the cathode of valve 1 to trigger the multivibrator at a mean level 21 to produce the full-line pulse B at the output terminal 15. The pulse time is modulated by the amplitude modulation of the triggering pulses. The control signal operates a relay 18 whose contacts 19 reduce the bias level of valve 1 to position 22 and hence shift the mean pulse position B to the dotted position which is the central position of the channel time allotment. At the receiver, Fig. 3, a multivibrator comprising valves 23, 25, has incoming negative-going channel pulses applied to an auxiliary grid of valve 23 from terminal 44 and negative-going gating pulses applied to the cathode of valve 25 from terminal 45. The coupling between the anode of valve 23 and the grid of valve 25 includes a cathode follower valve 24. The multivibrator is triggered from its quiescent state by the channel pulses, if a gating pulse is present at terminal 45, and restored by the trailing edge of the gating pulse, so that duration modulated pulses appear on an auxiliary grid of valve 25. The latter is connected through a low-pass filter 26 to the output terminal 27 for the demodulated signal. For operating the control signal relay 48 a D.C. amplifier 47 is provided which is normally biassed nearly to cut-off through resistances 55, 56 by a potential source 57. The unfiltered duration modulated pulses at the cathode of valve 24 charge condenser 50 through resistance 49 and, when the control signal relay at the transmitter operates, the resulting longer pulses passed to condenser 50, charge it to a potential great enough to overcome the bias across rectifier 51 produced by source 53. The potential then acquired by condenser 52 in the grid circuit of valve 47 is in opposition to source 57 and the valve conducts to operate relay 48. To prevent false operation of relay 48 by tones transmitted over the channel, the demodulated tone voltage at terminal 27 is rectified by circuit 61 ... 64 and applied as negative bias to valve 47 through the contacts 65 of relay 48 which open when the latter is properly energized. The pulse demodulator may alternatively be of the type described in Specification 613,240. In a duplex system, the pulses of the return channel may be shifted to the central position when relay 48 is operated. Specifications 587,940 and 600,261 also are referred to.
Patent GB-499328-A (GB)
Title: Improvements in polyphase watthour meter construction
IPC: B65D27/30
Filed: 1937-07-22
Abstract: 499,328. Supply meters. SANGAMO ELECTRIC CO. July 22, 1937, No. 20324. Convention date, April 12. [Class 37] A polyphase induction meter having a single .rotor disc is provided with a magnetic bridge between the separate driving magnet systems for the purpose of preventing unwanted torques upon the rotor due to the interaction of stray flux from one system and eddy currents of the other. On abase 26 is mounted a non-magnetic frame 27 carrying the driving magnet systems 12, 14, 12d, 14c, brake magnets' 17, rotor bearings, and the magnetic bridge-piece 25. The bridge 25 is in the form of an inverted U, its vertical limbs being parallel with the cores 12, 12d and its out-turned ends 25a, 25b being adjacent the surface of the rotor 16.
Patent GB-705427-A (GB)
Title: Polysulphonamides
IPC: C08G75/30
Filed: 1951-08-29
Abstract: Polysulphonamides are made by mixing an aqueous solution of a polyamine with a solution of a bis-sulphonyl chloride in a water-immiscible organic solvent preferably in presence of an emulsifying agent.  The Specification contains many examples of polyamines, bissulphonyl chlorides, organic solvents and emulsifying agents.  The polysulphonamides from diamines are fibre-forming. Reaction may be performed in presence of a water-miscible organic solvent and may be performed continuously as in Specification 685,729.  Reaction may be performed (i) by vigorously agitating a mixture of the two solutions; (ii) mixing a solution of the polyamine in the form of its salt with the solution of the bis-sulphonyl chloride and effecting reaction by adding alkali e.g. sodium carbonate or hydroxide, di- or tri-sodium phosphate or additional polyamine.  Examples are given. Specification 705,470, [Group IV (b)], also is referred to.
Patent GB-975198-A (GB)
Title: Apparatus for bi-fluid spraying
Inventor: CARMICHAEL HENRY
IPC: A62C99/00
Filed: 1962-05-29
Abstract: 975,198. Fire-fighting equipment. CARMICHAEL & SONS (WORCESTER) Ltd. July 29, 1962 [May 29, 1962], No. 20528/62. Heading ASA. [Also in Divisions B2 and G3] Apparatus for bi-fluid spraying incorporates a chamber 12 in which a supply of one of the fluids, such as foam, is maintained at a constant pressure, a delivery chamber 14 in communication with the supply chamber 12 by way of a plurality of communication lines 13a, 13b, 13c, 13d, each of which is under the control of a valve means 15, the lines of communication being controllable to or being designed to pass only a predetermined metered volume of liquid at the predetermined constant pressure aforesaid, a pump 17 the inlet whereof is in communication with the delivery chamber 14 and with a source 171 of supply of the other liquid, such as water, and which is caused to deliver a constant predetermined output at a predetermined pressure, and multiple spraying lines 18a, 18b, 18c, 18d in connection with the output " side " of the pump, the valve means 15 being interconnected with valve means 191 controlling each of the multiple outlets so that when the valve means 191 of a selected spraying line is opened the complementary valve means 15 is opened concurrently. The chamber 12 is supplied from a foam tank 10 by a pump (not shown) and is provided with a return line 121 incorporating a pressure relief valve 122. The pumps 11 and 17 may be driven from the engine of a motor vehicle with which the spraying apparatus is associated. To maintain a constant output from the pump 17 a pressure gauge is provided or the speed of the engine may be controlled by a pressure-operated governor. The foam pump 11 and pump 17 generate a pressure of 26 and 60 p.s.i. respectively while the pump 17 delivers 100 gallons per minute and the foam delivery is within the range 0-6 gallons per minute. The apparatus may be mounted on a trailer or form a static installation and be used for fire fighting or agricultural purposes.
Patent GB-317041-A (GB)
Title: Improvements in the manufacture of bleach liquor
IPC: C01B11/06
Filed: 1929-07-05
Abstract: 317,041. Zellstofffabrik Waldhof, and Faust, O. Aug. 9, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Adhesives.-Waste soda lyes from the manufacture of artificial silk (e.g. from the mercerizing process, or from boiling wood fibre &c.) are converted into bleaching liquor by treatment with chlorine. The chlorine precipitates the dissolved organic impurities which may be separated and utilized in the production of agglutinants, &c.
Patent GB-879323-A (GB)
Title: Device for stopping or controlling the flow of liquid in a pipe
IPC: G05D7/01
Filed: 1958-06-28
Abstract: 879,323. Regulating fluid flow; siphons. SMETHURST, G. Sept. 22, 1959 [June 28, 1958], No. 20779/58. Classes 69 (1) and 135. A liquid flow control device comprises an inverted U-tube immersed in a liquid with one end open to the liquid and the other end open to a region of lower pressure, means being provided for introducing into the tube pressurized air in order to create an air lock therein, and means for breaking the air lock. As shown, a number of U-tubes are formed in a tower 2 immersed in a reservoir 1 of water, the inlets A, B, C, D, E of the tube leading into a common outlet 3. A compressor 5 for supplying the air is connected via pipes 6, 7 to a point 8 in each of the U-tubes, a shut-off valve 10 and a bleed-valve 11 being provided in each pipe line; a main valve 9 is also provided. When the air in any one of the U-tubes is bled-off, water flows away at a rate governed by the head above the particular inlet chosen.
Patent GB-897318-A (GB)
Title: Improvements relating to heat exchangers
Inventor: AVERY RAYMOND WILLIAM
IPC: F28D9/00
Filed: 1959-06-19
Abstract: 897,318. Plate type heat exchangers. AUSTIN MOTOR CO. Ltd. Aug. 9, 1960 [June 19, 1959], No. 21064/59. Class 64(3) A heat exchanger matrix is connected to associated ducting by at least two resilient diaphragm-like units I, each constituted by a sheet metal frame of rectangular or square shape and having a continuous groove 2 or grooves running generally parallel to its inner or outer margin and being capable of undergoing deflection by forces imposed due to thermal expansion occurring during operation of the heat exchanger. The invention is described in its application to hot gas-air, cross flow or parallel flow plate type heat exchangers. In the cross flow apparatus shown comprising alternating corrugated plates 6 and flat plates 7 stacked to form a block, the resilient diaphragm units 1 are provided for the air ducts where these are connected to the matrix, only the air inlet duct 13 being shown. The inner flanges 4a of the diaphragm units 1 (see also Fig. 3) are welded to the edges of the matrix and the outer flanges of the diaphragm units are each welded to a rectangular frame 11 to which a box-like frame 12 carrying the air duct 13 is bolted. By-passing of the matrix by the hot gas flowing through the duct 14 is prevented by a sealing arrangement comprising corrugated strip members 18 which fit into channel members 19 secured to the outer casing of the heat exchanger. Alternatively a gland filled with a soft packing material may be utilized.
Patent GB-149254-A (GB)
Title: Improvements in vaginal douches and medicators
IPC: A61M3/02
Filed: 1920-07-12
Abstract: 149,254. Long, C. W. de. July 11, 1919, [Convention date]. Irrigators and like appliances.-A vaginal douche or medicator comprises a hollow member 3 having a narrowed forwardly extending part 4, an opening fitting closely to the body, an upwardly extending tubular handle 5 serving for the admission of air, a tubular boss 6 connected to a liquid supply pipe 9 by means of a milled plug 7, and to a vaginal pipe 6<1>, and a nipple 11 to receive an outflow tube. The medicament which it is desired to introduce into the vaginal tract is placed in a wire holder 10.
Patent GB-1520723-A (GB)
Title: Cylinder liners
IPC: B23B35/00
Filed: 1977-05-19
Abstract: Releasably fastened to the inner running surface of the cylinder liner (22) is a device (1) which has a drill bush (3) for accommodating a drill (7). The drill bush (3) is eccentrically mounted in the device (1) and is driven simultaneously with the drill (7) but at a lower rotational speed than the latter. By means of this drive, the drill (7), apart from the rotary movement about its own axis, performs a superimposed rotary movement about the eccentric axis of the drill bush (3). A blind hole (25) with a central, plane bottom surface (26) is thereby obtained in the wall of the cylinder liner (22), which bottom surface (26) serves as a reference surface for measuring the wear of the running surface. <IMAGE>
Patent GB-336280-A (GB)
Title: Grinding or sharpening device for rotary cutters
IPC: B24B3/46
Filed: 1929-07-10
Abstract: 336,280. Universelle Cigarettenmaschinen Fabrik, J. C. M³ller & Co., and Wehnert, A. C. July 10, 1929. Machine cutters, grinding in situ; wheels.-The rotary cutter a of a cigarette making machine is sharpened or ground by a disc d formed on one or both faces with a concave recess e so that the bevelled face of the cutter contacts with the disc over a substantial surface.
Patent GB-1125645-A (GB)
Title: Hydrocarbons
IPC: C07C13/45
Filed: 1966-05-12
Abstract: 1,125,645. Bicyclic hydrocarbons. MONTECATINI SOC. GENERALE PER L'lNDUSTRIA MINERARIA E CHIMICA. 12 May, 1966 [18 May, 1965], No. 21194/66. Heading C5E. A mixture of butadiene and cyclopentadiene is irradiated with U.V. light in the presence of a sensitizer at a temperature between - 25‹ C. and + 5‹ C. to yield a mixture of the following hydrocarbons: (1) 5 - vinyl - bicyclo - [2,2,1] - heptene - 2 (otherwise known as 5-vinyl-norbornene-2); (2) bicyclo - [4,3,0] - nonadiene - 3,7 (otherwise known as 4,7,8,9-tetrahydroindene); (3) and (4) two new compounds of formula for which detailed characterizing features are given, but for which the complete structure is not yet known. They are believed to be spatial isomers one of another, and are named as 7- (or 6-)-vinylbicyolo-[3,2,0]-heptene-2. The mixture can be fractionated under reduced pressure to yield pure samples of compounds (1), (2) and (4) together with a mixture of isomers (3) and (4). This latter mixture is heated, e.g. to 130‹ C., causing thermal rearrangement of compound (4) to give bicyclo- [4,2,1]-nonadiene-3,7 of formula which is then separated from unchanged compound (3) by fractionation.
Patent GB-1278341-A (GB)
Title: Chart changing apparatus
Inventor: ADAMS BOBBY D
IPC: G01D15/32
Filed: 1970-05-04
Abstract: 1278341 Recording-apparatus TEJAS INSTRUMENT ENGS Inc 4 May 1970 21245/70 Heading G1J Recording-apparatus with a drive-shaft 24 Fig.2 driven by a timing motor in a case 25 and a "pen" recording a variable e.g. flow on a series of charts C in turn has mounted on the shaft 24 chart holding and changing apparatus comprising an arbor 37 with splines 42 interupted by an abutment 47, 48, a disc 43 fitted on the arbor 37 to rotate therewith with a spring 54 urging it towards the abutment, a series of retainer clips 44, Fig.7, interspaced with charts C, Fig.3, on the arbor 37, each chart having a central hole that can pass over the abutment 48 and each clip 44 having parallel sides of a slot 45 engaging the splines 42 so as to rotate with the arbor 37, move longitudinally thereon and be free to fall away at a particular position of rotation of the arbor and an actuator A activated at this position of the arbor to push the charts C and disc 43 away from the abutment 48 so releasing the pressure holding the outermost clip 44, there against, the spring 54 causing the outermost chart to drop off the arbor upon return movement of the actuator and urging the next outermost clip against the abutment 48 so as to hold the remaining charts and clips on the arbor. The disc 43 has keys 53 engaging keyways 46 in the arbor 37 and a pin 58 to fit in a notch in the periphery of each chart C. The actuator A comprises a hub 71 whose flange 70 has a rim 69 movable towards the series of charts C on the arbor 37 to engage the outermost chart above the outermost clip 44 and it carries a container 72 into which the used clips 44 drop. The actuator A is activated by a solenoid 64 energized when a microswitch 34 is operated by a follower 33 entering a notch 31 in a cam disc 30 secured to the shaft 24. A rod 67 to which the hub 71 is secured is either moved directly by the solenoid 64 or the solenoid 64 operates a valve controlling the supply of air from a storage cylinder to a cylinder with a piston secured to the rod 67. A housing 16 carries the microswitch 34 on its back wall 17 and the actuator A on its door 18 interconnected by leads 66. A unit including the arbor 37, spring 54, cam disc 30 and chart disc 43 with charts C and clips 44 can be pre-assembled and locked together by a screw 40 and threaded hole 29 in the hub 27 of the disc 30 and one unit can be readily substituted for another on the shaft 24 by loosening a set screw 28.
Patent GB-402537-A (GB)
Title: Improvements in illuminated signs, advertisements, indicators and the like
IPC: G09F13/44
Filed: 1932-07-28
Abstract: 402,537. Gas meters. BLOOR, H. E., 2, St. James's Terrace, Clifton, York, and THORP & CO., Ltd., T., Victoria Works, Whitefield, near Manchester. July 28, 1932, No. 21283. [Class 64.] A gas meter supplies gas continuously to the pilot jets of an illuminated sign, advertisement, indicator or traffic signal, and the meter mechanism operates control means for supplying gas intermittently to the main burners without passing through the meter. In the apparatus shown, gas passes through the meter b to a row of jets a to provide pilot flames insufficient to illuminate the sign &c. The metering mechanism is geared to a shaft carrying cams e each of which trips at intervals a separate pivoted arm f carrying a valve g whereby a large flow of gas from a chamber i passes to the jets a to provide illuminating flames. The gas in the chamber i is tapped from a supply main k through piping k<2>, v. A governor r keeps the pressure of gas supplied to the meter b greater than that in the chamber i.
Patent GB-170358-A (GB)
Title: Improvements in or relating to ships' hulls, and other iron or steel vessels or containers
IPC: B63B3/14
Filed: 1920-07-14
Abstract: 170,358. Roberts, P., and Peters & Co., Ltd., G. D. July 14,1920. Plates and plating.- In ships hulls or other iron o r steel plated vessels having welded butt joints with h inserted welded locking. members at the joints, the locking. members consist of forgings each comprising a base-plate 4 with one or more projections 3, 8, 9, adapted to enter corresponding apertures in, or adjacent to, the abutting edges of the plates 1, 2. The said projections may take the form of a dumb-bell 8, Fig. 5, in conjunction with, or without, circular projections 3; or the dumb-bell form of projection may be omitted. According to the Provisional Specification, locking-members without base-plates may be used.
Patent GB-308539-A (GB)
Title: Improvements in or relating to air-brake valve
IPC: B60T17/04
Filed: 1928-07-23
Abstract: 308,539. Kendrick, W. D. July 23, 1928. Locking catches; stops, removable. - An angle cock having main and bleed passages and particularly applicable for use as an end cock in fluid pressure brake systems has the operating handle 10 provided with a rib 21 adapted to engage a fixed stop 19 to arrest temporarily the valve in the bleed position. The handle is pivoted to the valve spindle at 12 and is acted on by a spring 15 arranged between a lug 14 on the spindle and an extension of the handle to press the rib into engagement with a segmental flange 17 on the cock. 'The flange has upstanding projections 18, 20 in addition to the stop 19, and an inclined surface between the stops 18, 19, for engaging the rib to lock the cock in the open or closed positions. The handle has a depending skirt 16 to shield the spring.
Patent GB-824341-A (GB)
Title: Improvements in and relating to the manufacture of crystals
Inventor: GOLDEN NORMAN JEROME
IPC: C30B13/32
Filed: 1956-07-10
Abstract: <PICT:0824341/III/1> In a method of crystal manufacture or purification wherein a molten zone is passed along a horizontal elongated element of substance in contact with a seed crystal, a uniform radial temperature gradient is maintained at the interface at which the crystal element solidifies when leaving the heating zone. A quartz boat containing an elongated element of germanium and a seed crystal is placed in a silica tube 11 to the right of the heating device shown, which comprises six heating elements, two of which are shown at 14 and 15, symmetrically disposed around tube 11 and slidably mounted between two flanges 12 and 13.  Electric current is passed through the heating elements, and the heating device is moved to the right along tube 11 so that a molten zone is passed through the germanium starting at the seed crystal, to grow a crystal on the seed.  When the radial temperature gradient at the liquid-solid interface is not uniform, due for example, to the presence of the boat, one or more heating elements, for example element 15, are moved to the left with respect to the others by adjusting a screw 19.  This changes the radial temperature distribution in the heating device, and adjustment is made until the radial temperature gradient at the interface is uniform, preferably followed by adjustment of the power supply until the gradient is zero.
Patent GB-809358-A (GB)
Title: Improvements in or relating to devices for severing sheet material
IPC: B65B61/08
Filed: 1957-07-05
Abstract: 809,358. Cutting sheet materials. S.A.S.I.B. - S.p.A. SCIPIONE INNOCENTI-BOLOGNA. July 5, 1957 [July 11, 1956], No. 21409/57. Class 31(1). In a device comprising a rotatable cutter 11 coacting with a fixed cutter 13 for cutting a sheet 1 of wrapping material into predetermined lengths, the cutter 11 is connected to spring means and is driven at constant speed for part of each revolution by impelling means which serve to load the spring means while for the remaining part of each revolution the cutter 11 is uncoupled from the impelling means and moves rapidly past the cutter 13, under the influence of the loaded spring means, to cut the sheet. The cutter 11 is secured to a shaft 12 having secured at one end thereof a crank 26 to which is secured one end of a tension spring 27 the other end of which is anchored to a fixed part 28 of the machine frame. A gear 16 is idly supported on the shaft 12 which is provided with a radial arm 25. The gear 16 is provided with a pin 24 adapted, during rotation of the gear, to abut the arm 25 and with a pawl 29 which is movable, against the action of spring 30, into the path of the arm 25 by means of a fixed cam 31. The shaft 12 is movable in free-wheel like bearings which allow it to rotate only in the direction of the arrow F. The gear 16 is driven by means of a gear 17 and drives, through an intermediate gear 18, gears 19, 20 on the shafts of feed rollers 2, 3. The cutter 13 is adjustable towards and away from the path of the cutter 11. In operation, when the crank 26 passes its upper dead-centre position and comes into the position shown in dot-and-dash lines in Figs. 2 and 4, the cutter 11 assumes the position shown in dash lines in Fig. 4. On further rotation of the gear 16, the arm 25 is engaged by the pin 24 on gear 16 and is carried along thereby together with the cutter 11 and crank 26 in the direction of the arrow F thereby loading the spring 27. Before the crank 26 reaches its lower dead centre position, the pawl 29 meets the cam 31 and is moved into the path of the arm 25 thus coupling the shaft 12 and cutter 11 to the gear 16. When the crank 26 has passed its lower dead-centre position by a predetermined angle, the cutter 11 has reached a position a short distance ahead of the cutter 13 as shown in dash lines in Fig. 3. In this position of the cutter 11, the pawl 29 leaves the cam 31 and, by means of the spring 30, uncouples the shaft 12 from the gear 16. Then the crank 26, under the action of the spring 27, moves rapidly in the direction of the arrow F and the arm 25 leaves its driving pin 24 and is swung violently through a certain angle and at the same time the cutter 11 is swung past the cutter 13 to cut the sheet 1. The cutter 11 stops when it has reached its original angular position and the operation repeated.
Patent GB-958727-A (GB)
Title: Improvements in or relating to a thermally actuated fluid control valve
IPC: G05D23/08
Filed: 1962-06-04
Abstract: 958,727. Valves. D. TRUBERT. June 4, 1962 [June 3, 1961], No. 21440/62. Heading F2V. Valve 6 of a central heating radiator is opened against spring 8 by bimetal 15 engaging pin 29 on the valve stem 3 when the bimetal is heated by an electrical resistance wrapped on it and connected to a control circuit. The amount of valve opening is limited by a nut 34 adjusting the length of slot 31 accommodating the lift of stem pin 30. Sleeve 38 may be coloured to act as a valve opening indicator or may be removed to accommodate a handle having a rotatable, non-axially moving nut engaging threads 33 on stem 3.