baber/WOPTO huggingface dataset:
Patent GB-652749-A (GB)
Title: Improvements in or relating to air or the like compressors
IPC: F02C3/34
Filed: 1948-01-26
Abstract: 652,749. Centrifugal compressors. LAMMEREN, W. P. VAN. Jan. 26, 1948. No. 2251. [Class 110(i)] Air is circulated in a circuit by a fan; additional air, the temperature of which is regulated, is entrained into the circuit by means of an injector, and the velocity of the mixture so formed is decreased so as to increase the pressure and temperature; a quantity of air equal to that entrained is made available for external use and the remainder is returned to the fan to be recirculated. Air is circulated by a centrifugal impeller 2 through an injector 10, a non-return valve 12a, a diffuser 12 and a tank 13, and returns by way of a pipe 5 to nozzles 3 at the impeller intake. The nozzles may be rotatable and may be adapted to exhaust nearer to or at the impeller periphery. Additional air from an inlet 7 is entrained through injector vanes 11, and a corresponding quantity of compressed air is exhausted through a pipe 14. On starting, the tank 13 is filled with air at the desired pressure, stop valves 5a and 14a are closed, and the temperature of the air is then raised by suitable means. Then the impeller 2 is started and the stop valve 5a is opened. The entering air can be preheated by burners 9. The burners may be replaced by cooling means. In a modification, Fig. 2, an auxiliary impeller 22 is provided, and the mixing of the entrained and circulating air takes place before entering the main impeller. A single nozzle 20 is provided at the centre of the compressor housing 23 and the injector is formed by annular blades 21.
Patent GB-778188-A (GB)
Title: Improvements in and relating to frequency multiplication of alternating currents
Inventor: DALY BRIAN BOWMAN
IPC: H01F38/04
Filed: 1953-04-14
Abstract: 778,188. Transformers. WOODS OF COLCHESTER, Ltd. July 14, 1954 [April 14, 1953], No. 2326/57. Divided out of 778,187. Class 38 (2). Apparatus for deriving power at the third harmonic frequency from an alternating current supply comprises a transformer 11 having three primary windings 12, 13, 14 connected to an A.C. supply at 4, 5, 6 and an output winding 15, the core being operated at saturation and the output winding 15 being carried on a part of the core which carries the third harmonic fluxes acting additively and in which in order to enable the primary windings 12, 13, 14 to be connected in a delta connection each primary winding has an auxiliary winding 17, 18, 19 in series with it, the auxiliary windings being carried on a core in which the third harmonic flux effectively flows but in which no resultant flux at the fundamental frequency flows, the auxiliary windings each having such a number of turns and being connected in such direction that the third harmonic voltage induced in it is equal and opposite to the third harmonic voltage induced in the primary winding with which it is in series. The auxiliary windings 17, 18, 19 may be carried on a separate core 16 as shown or they may be carried on the transformer core in such a position as to embrace all three primary limbs within each of its turns. In order that a two-phase output may be obtained at 22 a transformer according to the invention may be associated with a known transformer 21 which functions in a similar manner but in which the primary windings are star connected; in this known case no auxiliary windings are required. If desired the supply voltage may be single phase and connected to the points 5, 6, a condenser being connected between the points 4, 5. The core of the transformer may be four-legged as shown or it may have five parallel legs with the output winding carried on two of the legs or again it may be cruciform in shape composed of E and I laminations, successive laminations being turned through 90 degrees. The invention is a selected example of deriving power at the nth harmonic frequency but there are practical limitations to making n greater than 3.
Patent GB-764246-A (GB)
Title: Improvements in or relating to siloxane elastomers
IPC: H01B3/46
Filed: 1955-01-26
Abstract: An organopolysiloxane composition which cures to an elastomer at room temperature consists essentially of (1) an acid-free organo-polysiloxane of at least 100 cs. viscosity at 25 DEG  C. and having the average general formula <FORM:0764246/IV(a)/1> , wherein each R is a monovalent hydrocarbon or halogenated hydrocarbon radical and n has an average value of from 1.99 to 2 inclusive, (2) from 0.1 to 50 per cent by weight of the siloxane of a substantially non-volatile alkyl polysilicate in which the alkyl groups have less than 6 carbon atoms, and (3) from 0.01 to 10 per cent by weight of the siloxane of a carboxylic acid salt of a metal ranging from lead to manganese inclusive in the electromotive series of metals, the carboxylic acid containing less than 16 carbon atoms in the molecule. There are specified: polysiloxanes in which the R groups are methyl, ethyl, octadecyl, cyclohexyl, cyclopentyl, phenyl, xenyl, naphthyl, benzyl, tolyl, xylyl, vinyl, allyl, cyclohexenyl, chloromethyl, bromophenyl, tetrafluoroethyl, trifluorovinyl, trifluorotolyl, hexafluoroxylyl, heptachloroxenyl, heptafluoropropyl, chlorodifluorovinyl, chlorohexafluorocyclopentenyl, 1-bromo-3-tribromopropyl and <FORM:0764246/IV(a)/2> polysilicates-methyl, ethyl, isopropyl, n-butyl and secondary amyl silicates; curing catalysts-naphthenates Pb, Sn, Ni, Co, Fe, Cd, Cr, Zn and Mn; Fe, Co, Mn, Zn and Pb 2-ethylhexoates, Cr octoate, dibutyl tin dibenzoate, dibutyl tin adipate, Pb sebacate, dibutyl tin dilactate, dibutyl tin diacetate, dibutyl tin di-2-ethylhexoate, dibutyl tin dilaurate and butyl tin tri-2-ethyl hexoate.  The compositions may also contain fillers, e.g. cork, wood flour, cotton linters, fabrics, calcium carbonate, titania, carbon black and silica in amount, e.g. of 10 to 300 per cent by weight of the siloxane.  The compositions may be compounded in the usual manner or if stored prior to use either the polymer, filler and silicate or the polymer, filler and salt may be compounded and the salt or silicate added immediately before use.  In coating applications a mixture of the polymer, salt and, if desired, filler can be applied to a base member and the polysilicate can then be applied, e.g. by brushing or spraying, diffusion of the latter into the siloxane coating effecting curing in situ.  The compositions may be cured more quickly in a press at 150 DEG  to 250 DEG  C.  The products may be used as potting compounds, for electrical insulation and for sealing of voids.  Examples are given.  Specification 687,759 is referred to.
Patent GB-119386-A (GB)
Title: Improvements in or connected with Brushes and like Cleaning Devices.
IPC: A46B17/08
Filed: 1918-02-09
Abstract: 119,386. Maw, C. T., and Maw, Son, & Sons. Feb. 9, 1918. Handles.-The handle or back of a nail brush or the like for cleaning the nails or hands is provided with one or more suckers so that it may be temporarily attached to a wash basin or other surface for use by a person able to use only one hand or arm. The suckers C in the form of flexible cups may be attached to the back or handle A by screws D and washers E.
Patent GB-591416-A (GB)
Title: Improvements in or relating to wheel suspension arrangements for vehicles
IPC: B60G11/04
Filed: 1945-02-01
Abstract: 591,416. Battery propelled vehicles; mounting batteries; torque rods. MORRISON, A. C. Feb. 1, 1945, No. 2543. [Classes 79 (iii) and 79 (iv)] [Also in Group XXXII] In a battery-operated electrically-propelled vehicle having a wheel suspension of the kind in which each wheel is suspended by a quarter elliptic spring 4, which is articulated to a part of or on the axle and has associated therewith a torque member 10 also connected with the axle in such a manner that torque reaction stresses are withstood in compression and tension, the inner ends of the quarter elliptic springs 4 are secure within the ends of channels 2 constituting members of a frame forming the bottom of a battery compartment beneath the floor of the vehicle body. The outer end of each spring is jointed preferably by a rubber bearing to a pin on an arm 8 on the axle or may be universally jointed to the arm 8 or to the axle itself. As shown each torque number comprises a rod 10 but may alternatively consist of a laminated cantilever spring rigidly secured at its inner end to a frame pillar 9 and pivotally connected at its outer end as in the case of the rod 10 to an arm 11 which may be integral with the arm 8. The front axle springs and associated torque members may converge towards the centre of the wheel base.
Patent GB-936505-A (GB)
Title: New chemotherapeutically active pyridazine derivatives and method of preparing the same
IPC: C07D237/20
Filed: 1961-01-23
Abstract: The invention comprises sulpha-pyridazines of the formula <FORM:0936505/IV(a)/1> and salts thereof, wherein R is a C1-4 branched or unbranched alkyl group, e.g. CH3, C2H5, and their preparation by oxidising a 3-amino-6-alkylthiopyridazine, suitably by treating with 30% aqueous hydrogen peroxide at 60-80 DEG C., reacting the resulting 3-amino-6-alkylsulphinyl-pyridazine (e.g. the 6-methylsulphinyl or 6-ethylsulphinyl 3-amino-pyridazines) with a benzenesulphohalide X,C6H4,SO2,Hal, wherein X is an amino radical or a radical convertible to an amino group by hydrolysis, e.g. a carbethoxyamino group, in the presence of a hydrogen halide-binding agent, e.g. pyridine, at an elevated temperature, preferably at 75-85 DEG C., and if necessary converting the para-substituent, X, into an amino group.
Patent GB-419695-A (GB)
Title: Improvements in locomotive crossheads
IPC: F16C5/00
Filed: 1934-01-25
Abstract: 419,695. Engine crossheads; connecting-rods. TIMKEN ROLLER BEARING CO., Denber Avenue, Canton, Ohio, U.S.A. Jan. 25, 1934, No. 2568. Convention date, April 28, 1933. [Class 122 (i).] An engine crosshead comprises a yoke member C and a slidablysupported shoe secured thereto. Antifriction, tapered, roller bearings are mounted in the yoke member and support a transverse pin for the connecting-rod. The yoke C, Fig. 2, has a shank portion 1 secured to the piston-rod, and the middle portion of the pin 3 has a tight taper fit in the rod B. The bearings D comprise inner and outer races 5, 6 with conical rollers 7 between them. The members 5 are mounted on the pin, and the members 6 in the yoke. The yoke C is suspended from the guide E by a shoe F. The guide E is of channel shape with spaced flanges which engage flanges 9<a> on the part F which is bolted by means of an annular projection 10 to the sides 2 of the yoke. The outer races of the bearings are secured by plates 12 held by bolts and screws 11<a>. A ring nut prevents movement of the pin 3. The races 6 have thrust ribs to confine the rollers 7. A slight clearance only is provided between the flanges 15 and the members 5 so as to provide a plain bearing in the event of the rollers being flattened under heavy loads, &c. The pin is made hollow to hold lubricant. The ends of the pin are closed by plugs 17, 22, which are secured by pins engaging lugs on the plugs and notches on nuts 18, 14. The lubricant is distributed by holes 26, 27, 28 and grooves. An arm 30 is mounted on the pin to operate the valve gear. In a modification the yoke is formed on the back end of the piston-rod B1, and has its branches 32 formed with bosses 33 which engage openings 34 in spaced plates 35 depending from the slidable shoe and secured by bolts to flanges thereon. The pin 40 is supported by taper roller bearings D<1> whose inner races are formed on the pin itself.
Patent GB-943891-A (GB)
Title: Improvements in or relating to shoe upper conforming machines
IPC: A43D21/12
Filed: 1960-01-25
Abstract: 943,891. Lasting-machines. BRITISH UNITED SHOE MACHINERY CO. Ltd. Jan. 25, 1960 [Jan. 26, 1959], No. 2572/60. Heading A3B. In a toe lasting machine of the "bed" type, having a shoe support and toe wipers, an upwiping member in the form of a flexible toe band is incorporated. The toe band 804 is of flexible plastic material of low coefficient of friction and has a wiping edge 870, Fig. 6. Fluid pressure operated means are provided for effecting the upwiping, overwiping and "bedding" operations of the machine. Toe band 804 is linked to operating pistons 824, Fig. 3, its forward movement being limited by the engagement of an adjustable bar 860 with an abutment 864 on wiper head 40. Initial movement of a hand lever 54, Fig. 11, closes a switch 910 to energize solenoids 726 and 908. Energization of solenoid 726 results in the admission of fluid beneath piston 704 to raise wiper head 40 through links 354 and 360. Upward movement of wiper head 40 is at a regulated speed determined by the setting of a needle valve 750 which controls the flow of oil from above piston 704 into a reservoir 740. At the same time energization of solenoid 908 shifts valve 906 to admit fluid through a pressure regulator valve 904 and valve 900, to cylinders 826 to advance and close toe band 804 to a predetermined operative position relative to the toe end of the shoe, Fig. 6. Due to the retarding effect of valve 750, toe band 804 assumes its operative position before appreciable upward movement of wiper head 40 has occurred and performs an upwiping operation on the upper. When wipers 50 have reached the plane of the insole the upwiping operation is stopped by slight displacement of push button 202, on hand lever 54, to the left to close switch 232 or by engagement of lever 354 with an adjustable stop. Closure of switch 232 energizes solenoid 274 to activate the power over-wipe by admitting fluid to valve-operating cylinder 748, valve 746 being immediately shifted to closed position, preventing further movement of piston 704 and stopping upward movement of wiper head 40. Wipers 50 may now be advanced and closed by means of power actuator 102 under servo control in response to movement of hand lever 54. After the over-wiping operation the push button 202 is depressed further to the left to effect power bedding by means of actuator 372 and with a force determined by pressure regulator valve 218 under the direct control of push button 202. Admission of fluid to actuator 372 through conduit 380, to which valve operating cylinders 723, 902 are connected, causes valves 900 and 722 to connect cylinder 826 and piston 704 to exhaust. Thus, when head 40 is moved downwardly the pressure of toe band 804 against the upper will be relieved and the toe band retracted, avoiding the tendency of the band to "down-wipe" and loosen the upper. Specification 918,023 is referred to.
Patent GB-1243197-A (GB)
Title: Polymerisation process
Inventor: SQUIRE JOHN MANSEL
IPC: C08F4/00
Filed: 1968-01-18
Abstract: 1,243,197. Polymerizing styrene. BRITISH PETROLEUM CO. Ltd. 9 Jan., 1969 [18 Jan., 1968], No. 2704/68. Heading C3P. Styrene is polymerized, in the absence of an alkyl methacrylate, using an initiator system having at least three components under a continuously increasing programmed temperature cycle in the range 50-150‹ C., the first component having a half life of 1-15 hours at 70‹ C. and less than 1 hour at 100‹ C., the second having a half life of 1-15 hours at 100‹ C. and 1-4 hours at 115‹ C. and the third having a half life of 15-30 hours at 100‹ C. 0À1-10 hours at 130‹ C. Examples of the three components are (1) lauroyl or octanoyl peroxides, p - chlorobenzoyl peroxide, 2,4 - dichlorobenzoyl peroxide, benzoyl peroxide or di-isopropyl peroxy-dicarbonate (2) 1,1-di-tbutyl peroxy-3,5,5 trimethyl cyclohexane, tbutyl - peracetate, cyclohexanone peroxide or t-butyl peroxyisopropyl carbonate (3) t-butyl perbenzoate, dicumyl peroxide, di-t-butyl peroxide or di-t-butyl perphthalate. The process can also be applied to the copolymerization of styrene with divinylbenzene. The process can be carried out in an aqueous suspension the suspending agent being polyvinyl alcohol, hydroxyethyl cellulose, hydroxypropyl starch a styrene-maleic anhydride copolymer or polyvinyl pyrrolidone. The suspension may also contain a wetting agent e.g. sodium caproate or oleate, long chain alkyl sulphate or sulphonate, sodium salt of an alkyl phosphate or the reaction product of tertiary butyl hydroperoxide and sodium formaldehyde sulphoxylate.
Patent GB-584724-A (GB)
Title: Improvements in or relating to radio navigation systems
IPC: G01S13/91
Filed: 1943-10-01
Abstract: 584,724. Radiolocation ; valve circuits. REEVES, A. H., and WILLIAMS, F. C. Oct. 1, 1943, No. 2712/46. Divided out of 584,670. Drawings to Specification. [Class 40 (v)] [Also in Group XXXVIII] The subject matter is identical with that described with reference to Figs. 5, 13, 15, 16, 17 and 18 of the Specification 584,670 which describes a radio navigation system in which a moving craft is enabled to follow a course at a predetermined range from a fixed station, by observing the range at the fixed station by radiolocation technique and signalling to the craft when departure from the course is indicated by a misalignment between the echo signal and a pair of locally generated strobe pulses. The claims relate to the circuit arrangements for generating a control voltage in accordance with the timing of recurrent input signal pulses (echo or retransmitted signals) with respect to recurrent locally generated pulses, in which the control voltage is developed when an input signal pulse is coexistent for at least part of its duration with one or both of a pair of recurrent locally generated pulses having the same recurrence frequency but different timing, and the magnitude of the control voltage depends upon the extent to which the input signal overlaps the locally generated signals.
Patent GB-524312-A (GB)
Title: Improvements in or relating to the manufacture of yeast
IPC: C12N1/18
Filed: 1939-01-26
Abstract: 524,312. Yeast. BECZE, G. DE. Jan. 26, 1939, No. 2778. [Class 14 (ii)] Yeast is. propagated in a highly diluted nutrient solution, whose volume is 80 to 90 per cent. of that present at the end of the fermentation, the propagation being so controlled to produce over a threefold increase and additions of fresh concentrated nutrient being made at intervals so that in the first half of the growth they correspond to the rate of natural yeast growth, while in the second half they lag behind it. The dilute nutrient solution may contain molasses, diammonium phosphate and ammonium sulphate, and increasing quantities of a strong solution of the same substances are added at intervals during the fermentation.
Patent GB-441582-A (GB)
Title: Improvements in or relating to modulated carrier wave receivers
IPC: H03G3/26
Filed: 1935-01-28
Abstract: 441,582. Valve circuits for wireless reception. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Elektra House, Victoria Embankment, London.-(Assignees of McLennan, M. A. ; 301, Bank Avenue, Riverton, New Jersey, U.S.A.) Jan. 28, 1935, No. 2834. Convention date, Jan. 27, 1934. [Class 40 (v)] A superheterodyne receiver with automatic volume control is provided with a local oscillator operating at the intermediate frequency which provides for homodyne reception and which, when the receiver is tuned to a frequency within a predetermined amount from that produced by a received signal, is locked with the intermediate frequency and releases a muted valve. As shown, the gain control potentials are derived from the load resistance 27 of a diode rectifier 41 included in the same envelope as an auxiliary amplifying tetrode which feeds it and is fed from the input circuit of the second I.F. amplifier 9. The diode circuit includes a cathode resistance 31 which produces a delay bias due to the tetrode anode current flowing therethrough. For back-ground noise suppression, semi-automatic tuning and deficient carrier or over-modulation compensation an oscillator 51 is provided tuned to the intermediate frequency and coupled both to one of the grids of the second detector 13 and to a coil 59 included with a coil 61 in the circuit supplying a diode rectifier in the valve 53. The coil 61 is coupled to the input circuit of the third I.F. valve 11 and when the receiver is approximately tuned to an incoming signal sufficient I.F. energy is present in the diode circuit to lock the oscillator 51 in step therewith and thus produce a substantial D.C. potential across the diode load resistance 63. This potential is fed to the grid of valve 53 and substantially reduces its anode current, thus extinguishing a glow discharge lamp 57 in the anode circuit and reducing the potential across the cathode resistance 55, which is in the grid circuit of valve 11, to such a value that the valve 11 becomes operative to pass the signals to the second detector 13. The glow discharge tube 57 may illuminate the tuning scale TD.
Patent GB-632947-A (GB)
Title: An improved method and apparatus for transporting and/or pumping molten metals
IPC: H05B6/20
Filed: 1947-01-30
Abstract: 632,947. Induction furnaces. TAMA, M. Jan. 30, 1947, Nos. 2885 and 2886. Convention dates, Feb. 15, 1946 and May 23, 1946. [Class 39(iii)] [Also in Group XXXV] Molten metal is discharged from a submerged resistor type induction furnace by electromagnetic pressure which is superimposed on the hydrostatic pressure of the metal. In one embodiment, a refractory and current conducting tube 8, of graphite or silicon carbide, has one end in the central vertical melting channel 7 of an induction furnace, and the other end located outside the furnace. The metal is forced through the tube, whose crosssection may be equal to or smaller than the channel 7, to moulds 26. Specifications 571,304, 575,780 and 599,439 are referred to.
Patent GB-791513-A (GB)
Title: Improvements in or relating to machines and methods for corrugating electric cable sheaths
Inventor: PENROSE JAMES RONALD
IPC: B21D15/04
Filed: 1954-02-01
Abstract: 791,513. Corrugating. PIRELLI GENERAL CABLE WORKS, Ltd., and PENROSE, J. R. Jan. 31, 1955 [Feb. 1, 1954], No. 2916/54. Class 83 (4). A cable sheath is helically corrugated by the relative rotation around the sheath and in engagement therewith of a member having a concave working surface inclined to a plane perpendicular to the axis of the sheath, as the cable sheath moves axially relative to the corrugating member. A metal sheath 12 covering an electric cable core 13 is helically corrugated by the rotation therearound of a head 1 carrying, in bearings 22 in a block 21, an annular corrugating member 23, surrounding the sheath but eccentric thereto and inclined, at the helix angle of the corrugations, to a plane normal to the axis of the sheath. The inclination of the member 23 feeds the sheath axially during the corrugating although the sheath may be pulled. The eccentricity of the annular member 23 is adjusted by a screw 24 bearing on the block 21. The diameter of the circular aperture in the annular member 23 may be less than the overall diameter of the corrugated sheath and the radius of curvature of the profile of the rim of the aperture is less than the desired radius of curvature at the root of the corrugations. The sheath 12 is supported just prior to the point of corrugation by an external bush 14 and an internal plug 31, hollow to accommodate the cable core 13, the plug being urged back by the squeezing action of the corrugating member, such movement being resisted by friction, fluid pressure or spring means. More than one corrugating tool may be carried by the head 1 to act successively, or simultaneously to produce ccrrugations having two or more starts. The corrugating tool may be in the form of an arc B, Fig. 1. The sheath may be rotated and the tool kept stationary. The machine may be combined with apparatus for forming cable sheath from metal strip as described, for instance, in Specification 711,305. Specification 791,514 also is referred to.