baber/WOPTO huggingface dataset:
Patent GB-566215-A (GB)
Title: Improvements in electrical frequency-dividing, counting and time-base circuits
IPC: H03B19/12
Filed: 1943-06-23
Abstract: 566,215. Valve generating circuits. CALVERT, R., GOURIET, G. G., and DAVIES, E. June 23, 1943, No. 10160. [Class 40 (v)] A frequency-dividing, counting or time-base circuit comprises an electron discharge device having its anode connected through a condenser to the positive terminal of the source of current, its cathode being connected to the negative terminal. Means are provided for discharging the condenser periodically in response to the fall of the potential of the anode through a predetermined part of the voltage source. The control electrode of the device is normally biassed to cut-off and is associated with means for applying input signals to raise the bias above cut-off so as to charge the condenser. In this way the condenser is charged in steps and discharged after reaching a predetermined voltage. The Figure shows an arrangement in which a condenser C1 is charged through a valve V1 and discharged by the valve V2 which is cross-coupled to the valve V3. By deriving the bias of the valve V3 from a tap of the potentiometer connected across the high tension source which provides the bias for the valve V1, a change in the input amplitude is prevented from increasing the rate of charging the condenser. In addition, the circuit is largely self-compensating for changes in high tension supply.
Patent GB-590855-A (GB)
Title: Improvements in or relating to brooms
IPC: B25G3/00
Filed: 1945-04-23
Abstract: 590,855. Broom handles. FROGLEY, A. R. April 23, 1945, No. 10177. [Class 61 (i)] A telescopic broom handle has means for positively locking various types of head on one end and locking means for holding the handle in extended position. The head is secured to a metal plate by screws and a shank 2 attached to the plate is adapted to enter the part 3 of the tubular handle. The end of the shank 2 is slotted, the inner end of the slot being enlarged. A spring-actuated locking-pin 8 passes through the handle 3 and the slot in the shank 2. The part 3 of the handle is telescopically mounted in a tube 13, and that in a further tube. The parts 3 and 13 have each a flat spring 15 attached at one end, provided with buttons 16, which engage in holes in the outer tubes and lock the handle in extended position. Each of the tubes 3 and 13 is provided with a stop collar 17 to limit their movement. The forward ends of the two outer tubes are formed with circumferential depressions 18, which serve as bearing surfaces for the tubes 3 and 13,
Patent GB-126520-A (GB)
Title: Improvements in Reamers.
Inventor: CROWTHER WILLIAM EDWARD
IPC: B23D77/06
Filed: 1918-06-21
Abstract: 126,520. Crowther, W. E. June 21, 1918. Reamers.-Relates to file-tooth reamers having helical teeth, and consists in cutting about one-half of the teeth right-handedly and the other half left-handedly. Preferably the teeth are arranged in longitudinal rows, as shown in Fig. 1, the rows R, L being arranged alternately, but, in modifications, two or more rows of one hand may alternate with a similar number of the other hand. In all cases, the rows are spaced apart to allow of the passage of cuttings or swarf. In a preferred form, the teeth are cut on the ridges of a polygonal blank, as shown in Fig. 4. The wear at the end of the tool may be compensated for in the known way shown in Figs. 1 and 5, the reamer being split radially at 4 and provided with a seat to receive the conical head of a screw. The reamer may be ground to size after the teeth have been cut, small flats being thus formed as shown in Fig. 3.
Patent GB-346148-A (GB)
Title: Improvements in or relating to the manufacture of objects from plastic, particularly ceramic substances by rotation and pressure
IPC: B28B3/02
Filed: 1930-03-31
Abstract: 346,148. Moulding ceramic material &c. by pressing plungers and dies. PORZELLANFABRIK KAHLA ZWEIGNIEDERLASSUNG FRIEBERG, Frieberg, Saxony, Germany. March 31, 1930, No. 10251. Convention date, Nov. 22, 1929. [Class 87 (ii).] Either the rotating plunger or die, or both, of a moulding-machine is provided with spiral ribs of one or more turns, the material-entering end of the ribs being tapered or flattened so that they encounter the material gradually and knead it during the pressure-moulding operation by making it move in a single or double spiral path. Fig. 1 shows an under plan view of a plunger which rotates in the direction of the arrow e and moulds the article c, Fig. 3. The spiral ribs in this case move the material outwardly towards the periphery of the plunger as shown by the dotted lines. In a modified form the spirals are arranged to move the material inwardly towards the centre of the plunger. In another modification the plunger is provided with a two-way spiral. Holes are provided in the plunger or the matrix for the escape of excess material. The end of the plunger may have any desired contour instead of being flat. In some instances the matrix is charged with the material before commencing the moulding operation, while in other cases the material is fed. in through the axis of the plunger or the matrix.
Patent GB-412279-A (GB)
Title: Improvements in or relating to electrical musical instruments
IPC: G10H3/20
Filed: 1932-09-21
Abstract: 412,279. Electrical musical instruments. JACKSON, L. MELLERSH-, 28, Southampton Buildings, Chancery Lane, London.-(Vierling, O. ; 7, Kloedenstrasse, Berlin.) Sept. 21, 1932, No. 10255/34. Divided on 408,998. [Class 88 (ii).] In a musical instrument wherein the vibrations of tuned bodies (e.g. strings) excited by striking are electrostatically translated into electric oscillations operating a loud-speaker or the like, the efficiency of translation during the initial portion of the oscillations constituting a note is modified by means of switches actuated by the keys. Wave-forms such as are shown in Fig. 6 may thus be produced, impact components and high initial amplitudes being if desired reduced or eliminated. In Fig. 1 each string 7, mounted on insulating blocks 4, 13, is connected at one end through a condenser 20 to the frame, and at the other through a resistance 21 to a contact 25 " made " on inserting the removable piano action. Each contact 25 is connected, through a condenser 26 and a contact 36 in parallel, to a common connection N and switch contact 63. Each contact 25 is also connected through a resistance 27 and common connection M to switch contact 62. Contacts 36 are " made " in the check positions of the hammers, i.e. subsequent to the hammer impact ; they consist of leather strips which are impregnated with colloidal graphite and are mounted on the hammers and checks arranged transversely and close to the strings 7 are adjustable insulated conducting strips 41, 42 forming capacities with the strings and connected respectively to valves 47, 48, output transformers 53, 54, centre-tapped potentiometer 57 and potentiometer 56, and to potentiometer 58, amplifier 59 and loud-speaker 60. With switch 62, 63 in left-hand position and a key struck, since contact 62 is connected to the frame the potential of the string remains zero (with zero efficiency of translation by the strips 41, 42) until the hammer is checked, when battery 65 through contacts 63, 36 gradually raises the string potential and the vibrations of the string subsequent to the impact period are translated and transmitted (Fig. 6, T), thus simulating the tone-starting characteristics of an organ. With switch 62, 63 in right-hand position and the tap 67 on the battery 65 at respectively the same, greater, or less, potential than tap 68 on potentiometer 69, the tone produced may be that of an ordinary pianoforte (contacts 36 being ineffective), (Fig. 6, Q), of a xylophone (through damping due to contacts 36 and condenser 26), (Fig. 6, R), or with the high amplitude impact vibrations followed immediately by even an increase in amplitude (Fig. 6, S). The effect of the dampers 19 on tone termination; the method of adjusting the heights of the strips 41, 42 and the voicing of the strings ; and the tuning of the instrument from a fork 71 which also forms a capacity with one of the strips 41, 42, so that with the string it may produce beats in the loudspeaker, are described. Specifications 405,278 and 408,998 are referred to.
Patent GB-527434-A (GB)
Title: Improvements in electric switches and operating gear therefor, particularly applicable to the control of two or more electric motors
IPC: H01H21/58
Filed: 1939-04-03
Abstract: 527,434. Controllers. BROOKHIRST SWITCHGEAR, Ltd., and LANCELEY, C. April 3, 1939, No. 10288. (Class 38 (iii)] A controller for two motors driving, for example, the two motions of a machine tool, comp:rises two two-way change-over switches 12, 13, each operated in either direction from a central off position to give forward and reverse operation of its respective motor, a single handle 40 being capable first of movement to engage the operating arm 29 of one of the switches and then of movement in a plane at right-angles to rock the switch one way or the other. The handle co-operates with a gate 42 which defines its movement for forward or reverse operation of either motor, and its operative connection with either switch is effected by a part 41 engaging either of two claws 30 situated at the free ends of the levers 29. The movable contacts of each switch are pivoted about a spindle 28, and cooperate with fixed contacts 22. A spring 50 provides for retractive action of one switch while spring-stressed notched caliper levers may in the case of the other switch operate with a lever moved with the switch to give snap-action and to hold the switch in any of its positions.
Patent GB-1287862-A (GB)
IPC: H01R43/00
Filed: 1971-04-20
Abstract: 1287862 Making electrical connections AMP Inc 20 April 1971 [19 May 1970] 10303/71 Heading B3Q A holder 40 for supporting, from an elongated member 6, a splicing tool 42 adjacent the ends of cables 2, 3 comprises an arm 92 adjustablysecured to a clamp 100, for fixing the holder to the member 6, and to a fixture 65 for holding the tool 42. The clamp 100 has a hexagonal pin 96 carrying a block 64<SP>1</SP> to which the arm 92 is fixed by a stirrup clamp 66<SP>1</SP> operated by a screw 68<SP>1</SP>. A hexagonal pin (76), Fig. 3 (not shown), at the lower end of the arm mounts indexably a block 64 and stirrup clamp 66 for securing the crimping tool 42. This includes a pivoted jaw 54 operated by a handle 56 forming part of a toggle linkage. A shear blade 50 on the jaw 44 enters a wire-receiving slot 52 in the tool head 44. Clamps 18 for the ends of the cables are spaced by a top bar 24 and a base 12 carried by brackets and to which are pivoted clamps 36 for securing a cover (32), Fig. 4 (not shown).
Patent GB-726000-A (GB)
Title: Improvements in lagging irons for mines
IPC: E21D17/086
Filed: 1953-04-16
Abstract: 726,000. Mine-roof supports. USINES ET ACIERIES L. GIOT SOC. ANON. April 16, 1953 [May 31, 1952], No. 10422/53. Class 20 (2). A mine roof lagging iron 1 has at one end a curved beak 3, and at the other end a fork 2 into which a beak 3 of an adjacent lagging iron is inserted. A pivot pin 6 is inserted through aligned holes 4, 5 in the adjacent lagging irons and the curved beak 3 bears against a similarly curved face of a wedge 8 driven transversely into a slot 7 in the fork 2, which slot extends substantially along the axis of the lagging iron. The wedge 8 is symmetrical about its longitudinal axis, and the face 9 of the slot 7 is formed with two symmetrically inclined parts, so that the wedge may be introduced into the slot from either side. To permit relative lateral orientation of adjacent lagging irons, lateral play is provided between the beak 3 and prongs of the fork 2, the bore 5 is flared outwardly at 11, and the abutment face 9 for the wedge 8 in the slot 7 may be formed on a movable piece 12, Fig. 6, or the face 9 may be of convex curvature, Fig. 7 (not shown).
Patent GB-219371-A (GB)
Title: Improvements in wireless receiving circuits
IPC: H04B1/22
Filed: 1923-04-17
Abstract: 219,371. Western Electric Co., Ltd., and Buer, S. T. April 17, 1923. Receiving sets, construction of.-Comprises an arrangement whereby the act of inserting an inductance condenser or resistance into its position in a wireless set effects the circuit changes which become necessary in consequence of the inclusion of the element in question. Thus an inductance 1 may carry a connecting plug 2 adapted to be inserted into a socket 3 in a block 4 mounted on a wooden base 7. The block 4 carries a plug 2<1> adapted to enter a socket in the mounting of the coil 1. The act of inserting the coil in position effects the actuation of a switch 8 through a sliding member 5 acted upon by the plug 2. Examples of the circuit alterations thus effected are described and illustrated, and comprise the addition or substitution of tuning inductance or the alteration of capacity, or the alteration from series to parallel or vice versa of the connections of a condenser associated with existing inductance in the set. Specification 141,344, [Class 36, Electricity, Conducting &c.], is referred to.
Patent GB-990086-A (GB)
Title: Improvements in and relating to artificial flowers
Inventor: BENKERT BRUNO
IPC: A41G1/00
Filed: 1962-03-19
Abstract: 990,086. Artificial flowers. M. A. BENKERT. July 31, 1962 [March 19, 1962], No. 10430/62. Heading A4X. In a method of assembling an artificial flower, a stub portion 12 with a flange 16 is inserted into an aperture 15 in a support 14 and apertured petal rings 13 are threaded thereon to abut flange 16 and a main stem with calyx 11 has its end pushed into stub 12, the completed flower being then removed from the support. Tne parts may be welded together by inserting a soldering iron through mouth 25 to fuse together the end 20 of the stem and spigot part 18 of the stub. In a modification, Fig. 4, a stub 27 is solid and has a peg portion 28 to engage a recess 33 in a stem 32. Specification 990,087 is referred to.
Patent GB-1122147-A (GB)
Title: Voltage regulator control device
IPC: G05F1/14
Filed: 1967-03-06
Abstract: 1,122,147. Transformer arrangements. GENERAL ELECTRIC CO. 6 March, 1967 [28 April, 1966], No. 10443/67. Heading H2H. [Also in Division H1] In a voltage regulating transformer, alternate taps are connected to pairs of circularly arranged fixed contacts 14, 16 &c. having angularly spaced movable contacts 31, 33 connected to a centre-tapped reactor 42, the voltage across which is supplied to an induction regulator 34 which may be alternatively a tapped transformer arrangement (Fig. 2, not shown).
Patent GB-101091-A (GB)
Title: Process for the Manufacture of Aluminium Nitride.
IPC: C01B21/072
Filed: 1916-07-25
Abstract: 101,091. Soc. Generale des Nitrures. Aug. 2, 1915, [Convention date]. Nitrides; cyanides.-In a process for the production of aluminium nitride, air from a pump A passes to a heater B and thence along a passage, where it receives excess of powdered carbon from a hopper C, so as to produce a mixture of carbon monoxide and nitrogen; or the carbon may be added from two hoppers to produce first carbonic acid and then carbon monoxide. The flame then passes through an electric arc between electrodes D, after which it receives a mixture of carbon and alumina from a hopper E and may be then passed through a second arc between electrodes F to complete the reaction. Alternatively, all the carbon necessary may be added before the gas stream reaches the electrodes D, only alumina being then added from the hopper E. The arcs may be blown into a contracted throat portion arranged immediately after the electrodes, and instead of arcs, other electric heating devices may be used. The furnace may also be arranged vertically instead of horizontally. Specifications 23740/13, 24731/13, 24533/14, and 11271/15 are referred to. The Specification as open'to inspection under Sect. 91 (3) (a) states that the process is applicable to the production of nitrides in general and to cyanides. This subject-matter does not appear in the Specification as accepted.
Patent GB-1198122-A (GB)
Title: Process for Preparing a Planographic Printing Form
Inventor: WILLEMS JOZEF FRANS
IPC: G03G13/28
Filed: 1967-03-06
Abstract: 1,198,122. Planographic printing plates. GEVAERT-AGFA N.V. March 5, 1968 [March 6, 1967], No.10476/67. Headings G2H and G2M. Planographic printing plates are prepared by developing a latent electrostatic image on a recording layer containing an inorganic photo-conductor which can provide Zn ions to form a hydrophobic image deposit, and then treating the areas not bearing a hydrophobic deposit with an aqueous solution containing a polyamino compound comprising at least two non-aromatic amino groups, at least one of which is in salt or quaternized form. The polyamines may be polymers, may contain O and/or P atoms in the main chain, and/or may contain heterocyclic or other side groups; the polyamino compound may be applied in the plate wetting soln. or printing ink, and may be mixed with a hydrophilic colloid, preferably together with a hydrophilic precipitating or hardening agent, a hygroscopic compound (e. g. a polyol), a wetting agent, a swelling agent for the recording layer (e.g. acetone or methylethylketone), a C 1-3  alkanol to lower surface tension, an acid, Na 2  SO 3  as antioxidant, and a second hydrophilizing agent (e.g. phytic acid or a ferro- or ferri-cyanide). The recording layer may comprise ZnO in an insulating resin binder.
Patent GB-162525-A (GB)
Title: Improvements in tube scrapers
IPC: B08B9/04
Filed: 1920-04-15
Abstract: 162,525. Preston & Co., Ltd., F., (Taylor, H. YV.). April 15, 1920. Cleaning internally, non-rotary appliances for. -A tube-scraper comprises two pairs of wheels 1 mounted on carriers 2 connected to one another by means such as 5. Adjustable distance-pieces 6 are fitted between the carriers and the handle 3, which is movable with respect to the carriers. The edges of the wheels are bevelled on both sides, and the carriers may be of a springy nature.
Patent GB-1092138-A (GB)
Title: Plant growth regulant mixture
Inventor: OETTEL HEINZ
IPC: C05F11/10
Filed: 1965-03-12
Abstract: Wheat is treated with a mixture of chlorocholine salt and choline salt.  The molar ratio of chlorocholine salt to choline salt may be 1 to 0.05-20.  The mixture may be applied as a solid or in aqueous solution.  A number of acid radicals including chloride are specified.
Patent GB-546932-A (GB)
Title: Improvements in television receivers
IPC: H04N7/04
Filed: 1940-06-20
Abstract: 546,932. Television. HAZELTINE CORPORATION. June 20, 1940, No. 10623. Convention date, Feb. 7. [Class 40 (iii)] Relates to television transmission systems in which a modulated carrier wave is used including video-signal components amplitude-modulated on the carrier wave and synchronizing components frequency-modulated on the carrier wave as described for example in Specification 529,320. According to the invention, the receiver includes means for stabilizing the input to the reproducing device at a predetermined level. As shown in Fig. 1, the line and field scanning generators 12, 13 are connected directly to the control apparatus 29 of the transmitter, the mixer amplifiers and the harmonic generators of Fig. 1 of Specification 529,320 being omitted. As shown in Fig. 2, the receiver includes a video-frequency equalizer 90 and a unidirectional or background component reinserter 91. An intermediate frequency amplifier 60 is used to supply the scanning channels. The frequency representing the line-synchronizing pulses is transmitted by the double-tuned transformer 92, 93 to a rectifier 83 comprising a diode with a load circuit having two time constants due to two resistor-condenser combinations 95, 96. The time constant of the combination is long compared to the period of the line pulses and provides bias for the diode. The combination 96 develops peaks to synchronnize the line-scanning generator 57. The fieldscanning generator 58 is controlled by a Similar chain 82, 84. The whole system is designed for single-side band working, the single-side band filter 19, Fig. 1, and the intermediate-frequency amplifier 53, Fig. 2, having the characteristic shown by curve A, Fig. 5, where x denotes the carrier frequency. The equalizer 90 is designed to have the characteristic shown by curve B, Fig. 6, that is the gain between zero frequency and frequency fa (the range over which double-side band components are transmitted and received) is half that of the gain between frequencies fa and fb (the range over which single-side band components are transmitted and received).
Patent GB-373345-A (GB)
Title: Improvements relating to the catalytic destructive hydrogenation of carbonaceous materials
IPC: C10G1/06
Filed: 1931-04-10
Abstract: In destructively hydrogenating carbonaceous materials in the presence of catalysts of molybdenum, tungsten, iron, cobalt, or nickel or their compounds, using excess of hydrogen and re-cycling the unused hydrogen, the amount of hydrogen sulphide in the re-cycled gas is kept within such limits as will produce a substantial increase in activity of the catalyst.  The catalysts are preferably employed initially in the form of oxides, which are converted into sulphides during the early stages of the reaction. The pressure on the liquid reaction products may be reduced in stages to allow a gas rich in hydrogen and poor in hydrogen sulphide to come off first, on further reducing the pressure to atmospheric, a gas rich in hydrocarbons and hydrogen sulphide is obtained, which may be used for enriching the re-cycled hydrogen. To avoid corrosion of pumps or other conveying devices, it is preferable to remove the hydrogen sulphide, even when in the correct amount, from the circulating gases before they enter the pumps &c., and then to restore it to the gases in the desired amount after they leave the pumps.  The hydrogen sulphide may be removed by passing through a countercurrent tower in contact with a solvent or an alkaline liquid, and may be restored to the hydrogenating gases in a second tower, in which the solvent is heated, or the alkaline liquid is acidified.  Specification 313,505, [Class 32, Distilling &c.], and 374,567 are referred to.
Patent GB-702605-A (GB)
Title: Improvements in and relating to the electrode construction of electroscopes
Inventor: BURNETT DONALD FENN
IPC: H01J47/04
Filed: 1951-05-07
Abstract: 702,605. Electroscopes. BRITISH OPTICAL & PRECISION ENGINEERS, Ltd. April 25, 1952, [May 7, 1951], No. 10657/51. Class 37 In an electroscope of the type comprising a charged fibre loop mounted adjacent a deflector in an ionization chamber, the fibre support consists .of two wires attached to the body of the instrument and anchored at four points. As shown, Fig. 2, the stiff deflector loop 7 and a quartz fibre 6 are mounted on a wire 3 formed in the shape of a hairpin. The pin is fixed to the microscope support of the instrument at points 4, 5 and is then bent sharply as at 13 so that the two sides of the wire rest in slots 11, 12 in which they are clinched. The end of the loop is then removed. The deflector loop which may be of stiff fibre may be mounted directly on the microscope support 9. Fig. 6 shows a construction of electroscope using an alternative fibre support, consisting of a pair of lugs 18, 20 machined on the top of the microscope supports and provided with slots 4, 5, 11, 12 in which the supporting wires 1, 2 are clinched. The top of the support is inclined slightly to a plane perpendicular to the optical axis of the instrument. Lens 10, 24 and scale 25 are mounted on tube 8 on top of which the fibre is mounted and which is earthed. The charging potential is applied by a button 23 to a highly insulated cylindrical member 22. Specification 652,213, is referred to.