baber/WOPTO huggingface dataset:
Patent GB-109634-A (GB)
Title: Process of and Apparatus for the Manufacture of Plate Glass.
Inventor: MCKELVEY JOHN HENRY
IPC: C03B13/02
Filed: 1916-08-15
Abstract: 109,634. McKelvey, J. H., and Ryan, C. F. Aug. 15, 1916. Delivering molten metal; rolling.-In the manufacture of plate glass, the molten glass is delivered in predetermined quantities from a melting-furnace into an independently-heated collecting chamber or furnace from which the glass is poured directly on to a rolling-table. On raising a manually operated valve 14, Fig. 3, the molten glass is delivered as required from the melting- furnace 10 into a shallow tilting-pan 21 forming the base of an independent collecting chamber or furnace 20 beneath which the rolling-table 30 is situated. When the glass has attained the requisite consistency, the pan 21 is tilted by handoperated gear so as to pour the glass on to the table 30 close to and partly beneath a roller 55. The table is mounted on wheels and is moved by a motor so as to come opposite an annealing-leer 40, Fig. 5, the first part of the movement taking place during the pouring so as to spread the glass evenly in front of the roller. Chains 64a are hooked on to the spindle of the roller, which is drawn by a motor across the table and up blocks 40<c>, where it is secured by wedges. Gauge-strips 35<b> on which the roller runs regulate the thickness of the plate. By means of a handle 67, the motor is now placed in gear with a chain 63a which draws a scraper 51 across the table, thus pushing the plate across a stationary table 40<b> into the leer 40. In a modification, the rolling-table 30 is stationary and the tilting-pan 21 extends the full width of the table, the leer being situated at the end of the rolling-table so as to receive the plate when the scraper advances.
Patent GB-289260-A (GB)
Title: Improvements in or connected with rotary pumps and the like and in or connected with hydraulic and like apparatus for the transmission of motion
IPC: F16H39/02
Filed: 1927-04-30
Abstract: 289,260. Slessor, W., Sorensen, P. E., Gallimore, J., and Wilton, D. April 30, 1927. Fixed-abutment type ; regulating pumps; reversing; discharge and suction pipes and passages for pumps. -A rotary pump of the type comprising a rotor C rotating about a fixed axis within a cylindrical barrel D which is adjustable to vary the eccentricity on either side of the axis by sliding in a fixed casing E, is provided with two and only two vanes 3, 4 movable radially in the same diameter of the rotor C and the supply and discharge ports are formed in the sliding faces of the barrel and casing, the barrel being provided with main and auxiliary ports 5, 5<1>. 6, 6<1>. The vanes may be fitted with pivoted shoes N. The eccentricity of the barrel D is varied by a hand wheel 10 and a passage 13 permits the passage of liquid from one side 11 of the barrel D to the other 12. The pump may be employed in a hydraulic power transmission gear Fig. 5 to supply a duplex motor B having two rotors. A lubricating pipe system is connected by T- pieces having non-return valves with the supply pipes K, K<1> so that lubricating liquid is supplied whichever pipe K or K<1> is the pressure side.
Patent GB-1061702-A (GB)
Title: Foamed resin insulating materials
Inventor: BAXTER SAMUEL
IPC: E04B1/78
Filed: 1965-03-18
Abstract: An insulating material comprises a flexible hollow extruded foamed polyolefin resin sheet having a cross-section in the form of a network of interconnected foamed polyolefin resin elements and an overall thickness of 1/2 to 2 inches. The density of the material is preferably between 1 and 2 lb./cu. ft. overall, and the density of the foamed resin elements may be from 2 to 4 lb./ cu. ft.  The cross-section of the material may be a rectangular or a triangular network.  The preferred polyolefin is polyethylene produced by a high-pressure process.  The hollow sheets may be produced by extruding a foamable  composition through a die having at its outlet end a number of slits arranged in the form of a network of the desired pattern, each slit having communicating with it a plurality of separate channels at the inlet end of the die (see parent Specification).
Patent GB-947424-A (GB)
Title: An indirect extrusion press
IPC: B21C23/21
Filed: 1961-03-30
Abstract: 947,424. Extruding. L. SCHULER A.G. March 30, 1961 [May 4, 1960], No. 11683/61. Heading B3P. A backward extrusion press has its die 4 carried by a bolster 5 which is adjustable axially for varying the relative positions of the die and the ram 3 at the end of its stroke. The bolster is pressed by a spring 20 against a wedge 8 adjustable transversely by a screw 13 on a spindle 12.
Patent GB-827657-A (GB)
Title: Improvements in catalytic conversion of hydrocarbons
IPC: C10G35/22
Filed: 1956-04-18
Abstract: A platinum catalyst, usually supported on an inorganic oxide gel such as alumina/silica, activated charcoal, zinc aluminate, spinel, kieselguhr, pumice, silica or alumina, is treated with an oxygen-containing gas and then with a hydrogen-containing gas at a pressure lower than the pressure employed in the catalytic conversion.  The catalyst may be purged with a fluid prior to the treatment with the oxygen-containing gas and prior to the treatment with the hydrogen-containing gas: the purging fluid being hydrogen or a normally-gaseous hydrocarbon.  Reference has been directed by the Comptroller to Specification 744,459.
Patent GB-551952-A (GB)
Title: Improvements in and relating to stock feed mechanism for lathes or other machine tools
IPC: B23B13/02
Filed: 1941-09-15
Abstract: 551,952. Feeding and supporting bar stock in lathes &c. PUCKERT, E. W. Sept. 15, 1941, No. 11814. [Class 83 (iii)] Overhanging bar stock is supported in lathes &c. by a tube 4 having a bayonet connection 18, 19 with a fixed part 20 of the headstock concentric with the spindle. The tube is supported by two standards, the rear one by a universal joint and the forward one by a crutch having two locating positions one in line with the spindle and one offset so that a fresh bar may be fed in from the front end. The stock is supported in an inner tube 1 and is fed by a cam 5 when permitted by the opening of the chuck. Interposed between the ram and the end of the stock is a rotatable member 8 having a coned head 9 and a ball thrust 11, 12. The tube 4 is closed by a cap 22 in which a taper sleeve 21 provides a mounting for the coned end of a plug 6 that closes the tube 1. Ports 7, 23 communicate with the tube 1 and with an air supply nipple respectively and in the operative position are connected by a part 24. A collar 1<SP>1</SP> on the tube 1 carries a handle 26 projecting through an arcuate slot 27 in the tube 4 that permits the tube 1 to be rotated in bearings 2, 3 sufficiently to close the port 23 and connect the port 7 to an exhaust port, (not shown), in the cap 22. Further movement of the handle serves to disconnect the bayonet joint. The handle is formed as a whistle to sound an alarm when the ram 5 passes the port 29 to indicate that a new stock-bar is required. According to the Provisional Specification oil may be fed by a wick to the air supply nipple to be carried by the air to the cylinder to lubricate the ram.
Patent GB-558246-A (GB)
Title: Remote or local tuning of radio transmitters over broad bandwidths
IPC: H03J5/24
Filed: 1942-08-22
Abstract: 558,246. Valve generating circuits. STEIN, P. Aug. 22, 1942, No. 11840. [Class 40 (v)] In a radio-transmitter a mechanical or electro-mechanical selector is arranged to bring into circuit one of a number of piezoelectric crystals 4 in pre-tuned circuits associated with an oscillator 5 and a following amplifier stage 7 is provided having a load inductance 8 either air- or ironcored designed to cover the frequency band covered by the transmitter. The output coupling coil is designed to match the transmitter to an aerial designed to cover the same bandwidth. A further wide band high power amplifier may be interposed between the coupling and the aerial.
Patent GB-947518-A (GB)
Title: Battery plate-pasting machines
Inventor: BROWN HARRY JOSEPH
IPC: H01M4/20
Filed: 1960-04-04
Abstract: 947,518. Electrode pasting machines. VAL (LUTON) Ltd. July 3, 1961 [April 4, 1960}, No. 11866/60. Heading H1B. A battery pasting machine has a planetary stirrer 10 in the paste hopper, a doctor roll 7 and doctor blade 8. The plates are fed by a pneumatic cylinder 20 acting on a push-rod 22.
Patent GB-582588-A (GB)
Title: Improvements relating to the braking of direct-current motors
IPC: H02P3/12
Filed: 1944-06-23
Abstract: 582,588. Control of D.C. motors. GENERAL ELECTRIC CO.. Ltd., and THOMPSON, W. G. June 23, 1944, No. 11962. [Class 38 (iii)] Non-regenerative braking. A control system for a direct current motor comprises a braking circuit connectible across the terminals of the machine including a mercury-vapour discharge device with controllable starting means, a contactor adapted to short-circuit said discharge device a pre-determined period after the striking of the arc, and a push-button, or the like which simultaneously interrupts the power supply to the motor and initiates the operation of the discharge device. A motor 1 is supplied from a grid-controlled mercury arc rectifier 3, the grid excitation system of which comprises an auxiliary transformer the primary winding of which is connected to a mains supply through the contacts of a relay 7. The secondary winding of this transformer is connected to the cathode of the rectifier through a source 9 of bias potential which is so maintained that the rectifier will fail to operate when the relay 7 is open. The control circuits are supplied through the terminals 23 and 24. If the "stop" push-button 10 is depressed a relay 26 moves to open the relay Y. A relay 25 operates to release a power relay 2 and disconnect the motor from the rectifier 3. The ignition circuit of a discharge device 16 is closed through the back contacts of the relay 2 and a relay 21. A braking circuit is established through the coils of relays 17 and 18, the discharge device 16, and a braking resistance 15. The relay 17 closes after a pre-determined time delay to short-circuit the discharge device 16. The energization of the relay 18 closes a relay 30 the contacts of which shunt the push-button 13 and prevent premature starting operation. A coil 12 is also energized to hold on the stopbutton 10. When the braking-current reaches zero the relays 17 and 18 are released to move the stop-button to its normal position and open the contacts of the relay 30. To re-start the motor the button 13 is actuated to release the relays 21, 25, and 26. The relay Y is energized to operate the rectifier 3, the starting circuit of the discharge device 16 is opened and the contactor 2 is operated to connect the motor to the rectifier.
Patent GB-1168326-A (GB)
Title: Improvements relating to Register Control Systems
Inventor: GOLD DANIEL
IPC: B41F13/02
Filed: 1967-03-14
Abstract: 1,168,326. Automatic registration control. CROSFIELD ELECTRONICS Ltd. March 5, 1968 [March 14, 1967], No. 11966/67. Heading G3R. A moving web has a succession of printed areas which are operated on in turn by means which also drive a magnetic ramp voltage pulse generator and registration is automatically maintained by a comparison between the phase of pulses derived from registration marks on the web relative to the ramp pulses which are maintained at constant amplitude. As applied to the automatic registration of a sheeting, folding or punching operation with a moving web having a repeating pattern printed on it, a shaft synchronized with the operation rotates a mild steel polepiece relative to an adjustably positioned magnet and coil 1, Fig. 1, to produce a pulse having a ramp portion bd at each revolution. This pulse is applied to an automatic gain control circuit 2 producing a pulse of similar waveform but of constant amplitude which is thus independent of operating speed. A gating circuit 3 ensures that only for the duration of the pulses is a circuit 8 rendered effective to compare the phase of the ramp pulses with that of short pulses produced by a photo-electric head 5 scanning registration marks or blocks of print on the web. The registration mark pulses are amplified at 6 and made of constant amplitude at 7. Circuit 8 charges a condenser at 4 to voltages corresponding to the positions along ramps bd at which the registration mark pulses occur. If these voltages, which represent the registration error, exceed a predetermined value, one or other of two uni-junction oscillators 10 is rendered operative, according to the sense of error, to control, through SCRs 14, 15, the energization of split phase windings 17, 18 of a servomotor which then runs in the appropriate direction to correct the error for periods dependent on the magnitude of the voltages as determined by the times taken to discharge the condenser at 4. The servomotor effects correction by varying the speed of web draw rolls through a differential gear or by varying the position of a roll to vary the length of the web on its way to the operating station. Suitable transistor circuits are described.
Patent GB-522723-A (GB)
Title: Improvements in tilting-sliding panels such as for lockers, bookcases, windows and the like
IPC: E06B3/50
Filed: 1939-04-21
Abstract: 522,723. Cabinet doors. JENSEN MOTORS, Ltd., and JENSEN, F. A. April 21, 1939, No. 11991. [Class 52 (i)] [Also in Group X] Relates to panels or doors for lockers, bookcases, and the like, of the kind wherein the panel is first tilted about a horizontal axis to align it with guides, along which it is then slid horizontally and inwardly. The sliding is controlled by pinions on the hinge axis engaging racks on the guides. According to the invention, the guides are of channel section with the webs vertical, upper flange of each channel being narrower than the lower one, in which the rack is formed. As shown, the panel 10 is housed at the top of the compartment 11, in guide-channels 14, the upper flanges 15 of which are narrower than the lower flanges 16. The racks are formed by rows of perforations 17. The panel carries on its inner surface near the top, brackets 20, which form bearings for a spindle 22 carrying pinions 24 engaging the racks 17. The spindle has end bosses 27 which engage with the upper flanges 15. The brackets 20 carry also projections 23 engaging the lower flanges 16 which, in conjunction with the bosses 27, prevent upward'tilting of the panel when sliding. Fixed brackets 30 support the panel when it is sliding in the guides.
Patent GB-1107976-A (GB)
Title: Improvements relating to arc chutes
Inventor: WRIGHT EDWARD GORDON
IPC: H01H9/36
Filed: 1966-03-18
Abstract: 1,107,976. Arc-rupturing. OTTERMILL SWITCHGEAR Ltd. 20 Feb., 1967 [18 March, 1966 (2)], Nos. 12041/66 and 12042/66. Heading H1N. An arc chute for an airbreak circuit-interrupter comprises a housing having insulating sidewalls 7, a pair of insulating plates 9 located against the sidewalls by cooperating projections 10 and recesses or apertures 8, and a number of metal plates each located at each side in notches 11 in the plates 9 and extending (at 15) between the plates 9 to maintain the plates in position. Shorter metal plates 17 may be disposed between the plates having the extensions 15. The plates may be of steel and have their upper ends supported in notches in plates 18 which may be riveted at 19 to the sidewalls or secured in a like manner as the plates 9.
Patent GB-663797-A (GB)
Title: Improvements in and relating to liquid meters
IPC: G01F3/18
Filed: 1949-05-05
Abstract: 663,797. Pistons. BECK & CO., Ltd., and PHILLIPS, H. E. June 24, 1949 [May 5, 1949], No. 12091/49. Class 122(i) [Also in Group XXIX] In a liquid meter (see Group XXIX) each piston has a passage 200 which passes through it and contains a piston 202. It is stated that the piston may be replaced by a diaphragm.
Patent GB-861371-A (GB)
Title: Process for the preparation of cyclopentadienyl manganese tricarbonyl compounds
IPC: C07F17/00
Filed: 1959-04-10
Abstract: Cyclopentadienyl manganese tricarbonyls are prepared by reacting a manganous compound with a cyclopentadienyl hydrocarbon and carbon monoxide in the presence of a transition metal carbonyl and an element from Group II or Group IIIa of the Periodic Table (Deming). Preferably the reaction is conducted in a liquid medium, e.g. an ether-dimethyl ether, diethyl ether, methylethyl ether, anisole, diphenyl ether, dioxan, tetrahydrofuran, ethylene glycol dialkyl (C1-C6) ethers, diethylene glycol dialkyl ethers-, an amine-propylamine, diethylamine, di-n-propylamine and other C1-C10 alkylamines, aniline, methyl aniline, dicyclohexylamine-, an amide-formamide, an alkyl formamide such as N,N-dimethylformamide, N-methyl pyrrolidone, hexamethyl phosphoramide-, or a nitrile such as acetonitrile, propionitrile, and butyronitrile.  Cyclopentadienyl hydrocarbons include the substituted cyclopentadienes, indene and fluorene.  Manganous halides are preferred, but the oxide, sulphide, sulphate, carbonate, nitrate and salts of C1-C10 organic acids may also be used.  The Group II or IIIa element should be finely-divided and free from oxide coating.  The reaction may be carried out at a pressure from 25 to 8000 pound per square inch and at a temperature between 0 DEG  and 300 DEG  C.
Patent GB-1016412-A (GB)
Title: A device for measuring transistor parameters
IPC: G01R31/26
Filed: 1964-03-23
Abstract: 1,016,412. Testing Transistors. TESLA, NARODNI PODNIK. Mar. 23, 1964 [March 30, 1963], No. 12182/64. Heading G1U. An arrangement for measuring the frequencyamplification characteristic of transistors has two transistor mountings 7, 8 with sockets 7e, 7b, 7c etc. for emitter, base and collector connected to a measuring frequency generator 1 whose pulse modulated output is connected to both the transistor mountings, the outputs terminals of the transistor mountings are connected to detectors 13,14 extracting the modulating signal and the detected signals are fed to a lower frequency switch 16 which passes alternately one then the other to a detector 19 extracting the switching frequency signal. One mounting 7 has the base socket 7b earthed and the emitter socket connected to the input, while the other mounting 8 has the emitter socket earthed and the base socket connected to the input, so that transistors may be tested in both common base and common emitter connection. Plugs are available which connect the input and output of one mounting directly. To measure f1-the frequency at which the gain B is unity. The test transistor is put in one of the mountings, say 8, and the other 7 has its input 7e and output 7c connected. The generator 1 provides the measuring frequency which is modulated at, say, 1 kc/s. The detectors 13, 14 extract the modulating signal (1 kc/s) before (from detector 13) and after (from detector 14) amplification. The switch 16 connects the two detector outputs alternately at 50 c/s to a high pass filter 17 (passing 1 kc/s) amplifier 18 and the detector 19 which extracts any 50 c/s component. The 50 c/s component will be zero only if the two inputs to the switch 16 were equal, that is, if the amplification of the transistor were unity. To measure f, the frequency of generator 1 is adjusted until there is no 50 c/s output, and the frequency noted. This adjustment may be carried out automatically (Fig. 2 not shown). To measure B-the amplification at a particular frequency. The generator 1 is set to the particular frequency, and either the indicator 22 showing the output of detector 19 is calibrated to read B directly,or an adjustable attenuator 15 is introduced between one of modulating frequency detectors 13, 14 and the switch 16. In the latter case the attenuator, which may be calibrated to read B directly, is adjusted until the indicator 22 shows zero. To measure fa-the frequency at which the amplification falls 3dB. The procedure is similar, but the attenuator 15 is set to 3dB and the generator 1 adjusted to find the frequency fa at which the indicator 22 shows zero.
Patent GB-239805-A (GB)
Title: Improvements in and relating to bodies for vehicles
IPC: B62D29/02
Filed: 1925-05-11
Abstract: 239,805. Imray, O. Y., (International Motor Co.). May 11, 1925. Holders for sliding windows. - A motor vehicle body consists of a number of separate units spaced apart and connected by yielding non - metallic strips whereby the units are held against any considerable relative displacement, but some degree of flexibility is afforded so as to allow for slight warping of the chassis frame. Each unit consists of an inner pressed metal shell a<2> and an outer shell a', and has window openings provided with pressed metal frames h, h<1>, h<2> welded to the shells a<1>, a<2>. The windows are fitted with rollers j and slide in guides formed on one side by a metal strip k and on the other by a metal angle piece l, which is pressed outwards by a rubber cushion i so as to grip the roller j. Recesses l<1>, Fig. 3, are formed in the frame to retain the roller j in various positions. When completely open, the window rests in a socket L fitted with a rubber strip o to stop rattle.
Patent GB-1507793-A (GB)
Title: Photo-setting resin compositions suitable for forming relief images
IPC: G03F7/027
Filed: 1976-03-26
Abstract: 1507793 Photopolymerizable compositions UBE INDUSTRIES Ltd 26 March 1976 [8 April 1975] 12272/76 Heading C3 [Also in Division G2] Photopolymerizable compositions useful for forming printing reliefs comprise (A) 100 parts by weight of a product prepared by esterifying a maleic anhydride adduct of a liquid polybutadiene having a molecular weight of 500 to 5000 and a viscosity at 30 C. of 200 to 10,000 c.p.s. with a hydroxyl compound of the formula where R<1> and R<2> are each H or methyl; (B) 10 to 150 parts of one or more unsaturated compounds selected from hydroxyl compounds of the formula given above, di-(meth)acrylates of the formula where R<3>, R<4> and R<5> are each H or methyl, and n is from 1 to 4, and glycidyl acrylate or methacrylate; and (C) 0À5 to 10 parts of a benzoin alkyl ether whose alkyl group has 1 to 3 carbon atoms. The compositions may optionally include a thermal polymerization inhibitor, e.g. hydroquinone, p-benzoquinone or alpha-naphthylamine. Other uses of the compositions include paints, adhesives, displays and lenses.
Patent GB-838898-A (GB)
Title: Improvements in linkages for convertible settees
IPC: A47C17/175
Filed: 1958-04-18
Abstract: 838,898. Bed-settees. FROHWEIN, A. April 18, 1958, No. 12316/58. Class 52(2) The back 19 and seat 24 of a bed-settee are connected by cranked arms 18, 23 pivoted at 21 which are mounted on links 15, 16 pivoted to the base frame, a catch 26 being interposed between the arms 18, 23 to hold the back in raised position, which catch is automatically tripped and reset as the seat is lifted and moved forwards or backwards to its bed position and vice versa.