baber/WOPTO huggingface dataset:
Patent GB-930738-A (GB)
Title: Improvements in or relating to speed-measuring apparatus
IPC: G01P13/04
Filed: 1960-09-16
Abstract: 930,738. Electrical measuring instruments. P. SAJONZ. Sept. 16, 1960 [Dec. 8, 1959], No. 31908/60. Class 37. [Also in Groups XXXV and XXXVIII] A speed measuring apparatus utilizes a twophase driven generator feeding an electric measuring instrument in which a rotor of hysteretic material is axially rotatable against a torque spring within a pair of coils concentric with the axis, embraced by bundles of ferromagnetic laminations aligned with the axis and uniformly spaced peripherally around coils, so that the respective lamination bundles embracing one coil are relatively staggered along the periphery with respect to those embracing the other coil. In Fig. 2, a biphase generator comprises identical parallel peripheral coils 14, embraced by alternate J-shaped and Z-shaped bundles of laminations 16, 17 at intervals of a pole pitch, and 14<SP>1</SP> is embraced by U-shaped bundles of laminations 15 at intervals of a pole pitch but T staggered peripherally by - with regard to 2 16, 17. A ring 21 of soft magnetic material encircles the outside edges of the lamination bundles and a multipole permanent magnet rotor 22 having the same width as coil 14<SP>1</SP> and registering therewith is rotatable by an input shaft 23 coaxial with the coils, which develop biphase quadrature signals of frequency representing the input speed to energize identical parallel peripheral coils 2, 2 of a frequency measuring instrument (Fig. 1) respectively embraced by alternate J-shaped and L-shaped bundles of laminations 3, 4. A ring 12 of soft magnetic material encircles the outside edges of the lamination bundles, and a rotor 5 peripherally covered with hysteretic material 26 is pivoted to rotate coaxially of the coils with its edges 27, 28 opposite the arms 3<SP>1</SP>, 4<SP>1</SP> of the laminations against a restoring spring 6, and deflects a speed indicating pointer 11, in response to the hysteretic torque produced in the layer 26 by the rotating field of the laminations 3, 4 due to the quadrature energization of coils 2, 2<SP>2</SP>. Reversal of the rotation of the input shaft reverses the sense of the field rotation and thus the direction of deflection of the pointer about a centre zero.
Patent GB-902744-A (GB)
Title: Improved musical instruments
IPC: G10H3/12
Filed: 1957-10-14
Abstract: 902,744. Musical instruments. MILLER, S .L. Nov. 13, 1958 [Oct. 14, 1957], No. 32038/57, Class 88(2). In a musical instrument, strings, bells or other resonant elements are excited at fundamental and harmonic frequencies sequentially by one or more electric oscillators and transducers. The order in which the frequencies are excited determines the attack. In Fig. 1, strings 1 are excited by a transducer 3 and an oscillator 2, the frequency of which varies cyclically either continuously or in intermittent bursts. A pick-up 4 detects the string vibrations. The electrical output of the pick-up is amplified at 5 and converted to sound by a loud-speaker 6. In a guitar, Fig. 2, the cyclic operation of the oscillator 2 is controlled by a foot-operated button 8. The oscillator drives the strings which radiate sound. A pipe 13, Fig. 6, is excited by a loud-speaker 6 controlled by an oscillator 2 and a key 11. A number of bells 10, Fig. 4, may be controlled by a single oscillator 2 and a keyboard 11.
Patent GB-334111-A (GB)
Title: Manufacture of derivatives of the naphthoylene-diaryl-imidazol series
IPC: C09B57/12
Filed: 1929-10-22
Abstract: 334,111. I. G. Farbenindustrie Akt.- Ges. Oct. 22, 1918, [Convention date]. Naphthalene, dyes derived from. -The naphthoylene-diarylimidazoles obtainable by the processes of Specifications 237,294, 265,232 and 265,964 are converted into other dyestuffs by nitration, followed, if desired, by reduction. The nitration may be effected in the presence or absence of a solvent, such as sulphuric acid or nitrobenzene, mono- or poly-nitro derivatives being obtained according to the conditions. The amino derivatives obtainable on reduction can be transformed into further derivatives by the Sandmeyer reaction. In examples, (1) 1 : 4 : 5 : 8-naphthaylenedibenzimidazole (Specification 237,294) is converted into a mono-nitro derivative by treating with nitric acid in nitrobenzene or concentrated sulphuric acid; the product, which is converted into the corresponding amino derivative either in the alkaline hydrosulphite vat or by treating with reducing agents such as sodium sulphite, dyes cotton bluish-grey to black shades; (2) 1: 4 : 5 : 8-naphthoylene- 4<1> : 4<11>-diethoxydibenzimidazole, made by condensing 1 : 4 : 5 : 8 - naphthalenetetracarboxytic acid with 4-ethoxyphenylenediamine, is treated with nitric acid in sulphuric acid; the product (a dinitro derivative) dyes cotton grey tints, while the non-nitrated parent material dyes violetbrown shades; and (3) 1 : 4 : 5 : 8-naphthoylene- 1<1> : 2<1> : 1<11> : 2<11>-dinaphthimidazole, made by condensing 1 : 4 : 5 : 8 - naphthalenetetracarboxylic acid with 1 : 2-naphthylenediamine, is nitrated with nitric acid in sulphuric acid, and the product reduced with sodium sulphide or in an alkaline hydrosulphite vat; the amino derivative, obtained dyes cotton olive-green tints, while the non- nitrated parent material dyes currant tints. The Specification, as open to inspection under Sect. 91 (8) (a), includes also a further example in which the mono-nitro-1 : 4 : 5 : 8-naphthoylenedibenzimidazole of Example 1 is obtained by treating the parent material with nitric acid in a ball mill. This subject-matter does not appear in the Specification as accepted.
Patent GB-720253-A (GB)
Title: Liquid displacement pump
IPC: F02M59/14
Filed: 1952-12-18
Abstract: 720,253. Flexible chamber pumps. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Dec. 18, 1952. [Dec. 20, 1951] No. 32123/52. Class 102 (1). A pump for discharging a small quantity of liquid at regular intervals for use, e.g., in filling ampoules or supplying fuel to the cylinders of an internalcombustion engine, comprises a body 1 having a chamber 15 supplied with liquid by a pump 13 and communicating through a bore 17 in a resilient washer 20 controlled by a spring- loaded valve 12 with an outlet 10. The flow of liquid into the bore is regulated by a valve head 5 carrying a sealing diaphragm 21 and to the stem of which is attached a spring-loaded cap 6 bearing against a cam 7. The chamber 15 is fitted with a relief valve 19. During downward movement of the stem, the valve head 5 first shuts off communication between the chamber and the bore and then compresses the washer 20 so as to discharge a small quantity of liquid past the valve 12 to the outlet 10. In a modification, the washer 20 is protected by a metal plate formed with a short hollow tube through which the liquid flows from the chamber 15.
Patent GB-192540-A (GB)
Title: Improvements in or relating to variable speed hydraulic transmission mechanism
IPC: F16H61/472
Filed: 1921-11-30
Abstract: 192,540. Vickers, Ltd., and Sinclair, H. Nov. 30, 1921. Speed - varying mechanism; liquid - pressure engines.-In variable-speed transmission gears of the kind comprising pump and motor units and means for varying the stroke of the pump and/or motor unit, the stroke-controlling member D, Figs. 1 and 2, is operated by an hydraulic servomotor A<x>, controlled bv a member A<1> which is under the joint control of a hand-lever B and an automatic device C operated by the pressure in the system, the member A<1> being returned to its neutral position by hunting gear. Means are also provided for limiting the rate of retardation when the control-lever is moved back towards neutral. The member A' is connected to a floating link E, connected at one end to the device C and at the other to a floating link E', one end of which is connected through links e<3>, e<4> and a lever e<5> to the lever B, while the other is connected by a link e<1> and bell-crank e<2> to the pistonrod of the servomotor. The exhaust from the servomotor cylinder may be throttled, and a bypass valve a<x> serves to by-pass the liquid when the member D is at or near its neutral position. In a modification, an electric servomotor of the Deri single-phase type is employed. The device for limiting the rate of retardation comprises a plate F<1> with stop-members f<1> adapted to cooperate with the lever e<5>, the plate being carried by a cam F engaged by a roller e<x> on the pistonrod of the servomotor.
Patent GB-759178-A (GB)
Title: Improvements in single beat stop valves
IPC: F16K1/34
Filed: 1953-11-20
Abstract: 759,178. Valve closure members. DEWRANCE & CO., Ltd. Nov. 20, 1953 [Nov. 22, 1952], No. 32242/53. Class 135. A single beat stop valve has an annularly recessed, annular projection formed on at least one of the coacting closure elements so as to impart a degree of flexibility to the element or elements. In one embodiment an annular projection 4, Fig. 2, with an annular recess 5 is formed on the movable member 2 and the seating 3 also has an annular recess 6 which, in a modification, is omitted. Another embodiment has an annular projection 7, Fig. 4, recessed at 8, and providing a seating for the movable member 2 which has a projection 10 annularly recessed at 11. A modification of this arrangement has a movable member with a conical end for engagement with the inner part of the projection 7. Figs. 5, 6 illustrate two further forms of the invention in which the annular projections are formed on the movable closure element only.
Patent GB-1452444-A (GB)
Title: Machine tool comprising means for means for measuring the axial  feed force acting on a drive spindle
IPC: G01N3/58
Filed: 1974-07-22
Abstract: 1452444 Machine tool details TIEFBOHR-TECHNIK GmbH & CO KG 22 July 1974 [25 July 1973] 32302/74 Heading B3B In a machine tool, the feed force on a spindle 2 is taken up by thrust bearing 1, the deflection of which is measured by an apparatus comprising a nozzle 15 which directs fluid under pressure on to a baffle surface 14 which moves relatively to the nozzle under the feed force. The variation in back pressure is detected by a differential pressure gauge such as 39 in Fig. 1 which detects the pressure difference between a nozzle 37 and a reference adjustable nozzle 35. Two nozzles 15, 23 may be used in the bearing, facing in opposite directions and directed on to baffle surfaces 14, 26, in which case the reference nozzle is not required and is replaced by one of the other nozzles. The nozzles are provided in outer race ring 10 and bearing cap 12 and the baffle surfaces on a collar 13 of inner race ring 5 and on nut 27 screwed on to the spindle. There may be more than one angularly spaced nozzle on ring 5 and cap 12.
Patent GB-737157-A (GB)
Title: Improvements in and relating to methods and preparations for prolonging the life of cut flowers
Inventor: WEST TRUSTRAM FREDERICK
Filed: 1953-11-21
Abstract: The life of cut flowers is prolonged by The life of cut flowers is prolonged by immersion of the stems in a 5-12 parts per million aqueous solution of 2,21-dihydroxy-3,31 - 5,51 - 6,61 - hexachlorodiphenylmethane (hexachlorophene) or salt thereof.  The solution may contain also a monosaccharide, e.g. dextrose, as a respiratory substrate, salts of essential minerals and trace elements, plant hormones such as 4-chlorophenoxy acetic acid, growth regulators such as mono-iodo acetic acid.
Patent GB-363059-A (GB)
Title: Improvements in prepayment meters for gas and the like
IPC: G07F15/08
Filed: 1930-10-28
Abstract: 363,059. Prepayment mechanism for meters. NAAMLOOZE VENNOOTSCHAP D E NEDERLANDSCHE GASMETERFABRIEK G. WILSON, MAATSCHAPPIJ VOOR AANLEG VAN GASEN WATERLEIDINGEN, 241, Loosduinscheweg, The Hague. Oct. 28, 1930, No. 32396. Convention date, Oct. 28, 1929. [Class 27.] A multiple-rate tariff prepayment meter having a coin slot for each rate is so arranged that all the slots but one are blocked at any one time and means are provided which, after the insertion of a predetermined number of coins, automatically change the free slot and the gearing of the prepayment mechanism. In the application to a two-rate meter, two staggered, tapering, coinreceiving slots are provided in a drum 2<1> rotatable by a handle 2 as shown in Fig. 1, which is an inverted plan view. With the high rate in force the insertion slot leading to the slot 4 is blocked and coins can be inserted in slot 3 only. When the handle is turned in a counterclockwise direction, the lower edge of the coin rotates the usual notched disc 5 for setting forward the quantity mechanism and its upper edge rotates a notched disc 6 geared to a wheel 8. After a predetermined number of coins have been inserted, a striker 7, Fig. 2, on the wheel 8 actuates a lever 9 to move a carrier 10 thereby causing a change of rate. A rod 16 attached to the carrier 10 or, as shown, to the lever 9 is also moved and a tooth 17 thereon blocks the slot 3 while freeing the slot 4. Coins are now inserted in the slot 4 and owing to the position of this slot actuate the disc 5 only. The carrier 10 carries two toothed wheels 11, 12 of different diameter, one or the other of which meshes, according to the rate in force, with a wheel 13 of the quantity mechanism. The carrier 10 can move up and down as well as lengthwise by reason of two pins 18 thereon engaging in circular guideways 19. At the end of a stated period, an inspector restores the high rate by a hand-lever 15 connected by a link 14 to the lever 9 and serving to move the rod 16 and carrier 10 back to their initial position.
Patent GB-896003-A (GB)
Title: Steplessly adjustable ellipse template
IPC: B43L11/04
Filed: 1960-09-21
Abstract: 896,003. Mathematical drawing apparatus. BOEHM, P. F. Sept. 21, 1960 [Sept. 23, 1959], No. 32454/60. Class 97(3). An instrument for drawing ellipses of any size between a maximum and minimum comprises two pairs of templates 9, 9<SP>1</SP>, 9a, 9a<SP>1</SP>, Fig. 1, each of which has an edge d defining a quarter of the ellipse. As shown the templates are in the position for drawing the maximum ellipse and edges 10 of templates 9, 9<SP>1</SP> and 9a, 9a<SP>1</SP> respectively abut, whilst edges 10<SP>1</SP> of adjoining templates overlap. On rotating a gear 6 by means of a knob, not shown, a toothed ring 3 is driven in one direction whilst through an intermeshing gear 6<SP>1</SP> a toothed ring 3<SP>1</SP> lying beneath ring 3 is driven an equal amount in the opposite direction. Each ring 3, 3<SP>1</SP> has a pair of brackets 14, 14<SP>1</SP> secured thereto which, through pins c engaging slots 12 in the templates 9, 9<SP>1</SP>, 9a, 9a<SP>1</SP>, angularly move the latter, the exact movement of the templates being determined by cam edges e, f engaging fixed pins a, b under the influence of springs 13. The brackets 14, 14<SP>1</SP> also act as spacers between rings 3, 3<SP>1</SP> the latter being maintained concentric by leaf springs 18 and being pressed together by leaf springs 16. To close the gap which develops between adjacent templates when they are moved away from the position corresponding to the maximum ellipse, a resilient wire 19 is attached to templates 9<SP>1</SP>, 9a<SP>1</SP> and co-operate with bent up portions or pins 20 on templates 9, 9a. In a modification the edges d are extended and wires 19 omitted. The whole instrument may be mounted in a transparent outer frame 21, Fig. 8, provided with edges at various angles to a base edge 22, and marked with lines A<SP>1</SP>, A<SP>11</SP>, to assist in using the instrument in axonometric, particularly isometric drawing.
Patent GB-300179-A (GB)
Title: Improvements in and relating to methods of colouring glassware
IPC: C03C17/22
Filed: 1928-11-07
Abstract: 300,179. British Thomson-Houston Co., Ltd., (Assignees of Pipkin, M.). Nov. 7, 1927, [Convention date]. Bulbs; residual gases.-In the method of colouring bulbs described in Specification 277,695, wherein the bulb is frosted on the inner surface and a dry powdered pigment is caused to settle in the frosted surface, the pigment comprises tungstic oxide. Oxides, sulphides, and silicates of iron, cadmium, chromium, cobalt, selenium, titanium, tungsten, and zirconium may be used as pigments, with which tungstic oxide is mixed. Red phosphorus may be added as a getter. A pebbled appearance may be imparted to the coating by adding a quantity of shot to the pigment.
Patent GB-160923-A (GB)
Title: Improvements in tools and tool holders for turning, planing and like operations
IPC: B23B27/16
Filed: 1919-12-30
Abstract: 160,923. Tasker, W. T. Dec. 30, 1919. Tools; tool-holders.-Tool-holders for turning and planing machines &c. are formed from barsteel adapted to be secured in the slide rest &c. and recessed at the end to carry a cutter block with a plurality of cutting-edges, the back surface of the recess being shaped to engage similar surfaces on the cutter block to lock it. A tool shank a, Figs. 5 and 6, with an extended recessed part a<2> carries the cutter block e by means of the screw g. The block has four cutting-edges c<2>, and the upper surface of the block may be spherically recessed to form the cutting-points. Various arrangements of bolts, washers, and nuts for securing the block are shown. Fig. 11 shows a modification in which the cutter block is a rhomboid engaged by an outer lateral surface of the recess, the upper surface of the block being concave and cylindrical.
Patent GB-923452-A (GB)
Title: Improvements relating to bar-like elements for structural and other purposes
IPC: B21D47/04
Filed: 1958-10-14
Abstract: 923,452. Structural bars. A. R. HIGGIN. Oct. 13, 1959 [Oct. 14, 1958], No. 32678/58. Class 20 (2). [Also in Groups XIII, XXII and XXVIII] A structural member comprises a casing 10, Fig. 1, having lightening holes 15 in which is a bracing member 11, Fig. 3, extending from side to side of the casing and bounding the holes so that the member provides a longitudinal fluid passage and also transverse fluid passages through the holes 15. The casing 10 is formed by bending sheeting along lines 12, Fig. 2, and joining along edges 13 with the bracing member enclosed. The bracing member comprises two strips 16 bent so that when the two strips are joined faceto-face hexagonal openings 17 are formed and these register with the lightening hole 15 when a structural member is formed by welding between electric resistance rollers. The strips 16 are bent into rectangular form 23 between the openings 17. Structural members of cruciform or Y-section, Figs. 4-8 (not shown), are similarly constructed, the bracing members for which each comprise only one strip, one strip being inserted within each branch of the structural member.
Patent GB-847369-A (GB)
Title: Improvements in or relating to apparatus incorporating a dichroic mirror
Inventor: QUINN STANLEY FREDERICK
IPC: H04N5/257
Filed: 1955-11-16
Abstract: 847,369. Colour television; photo-multiplier circuits. ELECTRIC & MUSICAL INDUSTRIES Ltd. Nov. 5, 1956 [Nov. 16, 1955], No. 32724/55. Class 40(3). In apparatus employing a dichroic mirror to direct light to a photo-multiplier type of light cell variations in the colour response of the mirror due to variations in the angle of incident light are mitigated by varying the gain of the cell. The invention which is stated to be of general application is described as applied to a colour film scanner in which light from a cathoderay tube flying-spot scanner is directed to three light cells by means of a pair of dichroic mirrors arranged so that the three cells receive respectively only the red, green and blue components of the light. Each cell is arranged in a circuit as shown in Fig. 2 with the multiplying electrodes or dynodes 3-13, which are disposed between the photo-cathode 2 and anode 14, connected to receive appropriate negative potentials from resistor network 17-27. In accordance with the invention, the connection to dynode 12 includes a potentiometer 29 by means of which a sawtooth or other suitable waveform may be applied from terminal 32 to the dynode so as to vary the gain of the photo-multiplier. If the waveform is positive going the potential difference between dynodes 12 and 13 is arranged to be one sixth of the potential difference between dynodes 11 and 12, and the potential differences are arranged to be the reverse of this if the waveform is negative going. Where the dichroic mirrors are arranged as described in Specification 847,368 with the field scan direction on the surface of the dichroics at right-angles to the principal optical axis, the waveform is at line frequency. When the line scan direction is arranged perpendicular to the principal optical axis, the waveform is a frame frequency. Reference is made to the use of waveforms at both line and field frequency.
Patent GB-1503137-A (GB)
Title: Process for producing glass products
IPC: C03B5/225
Filed: 1976-08-05
Abstract: 1503137 Partially refined batch materials MIDLAND GLASS CO Inc 5 Aug 1976 [6 Aug 1975] 32744/76 Heading C1M An intermediate glass product is made by mixing and melting batch materials, refining the melt to 60-95% of the fully refined state and then cooling (e.g. with a water jet) to form granules or particles. The intermediate can then be melted and fully refined for making glass products, possibly at a different location.
Patent GB-663354-A (GB)
Title: Amplitude modulation of high frequency currents
IPC: H03C1/26
Filed: 1949-12-21
Abstract: 663,354. Valve modulating circuits. RADIO CORPORATION OF AMERICA. Dec. 21, 1949 [Dec. 21, 1948], No. 32760/49. Class 40 (v). A modulating system comprises a modulating valve in parallel with a radio-frequency amplifier valve with their anodes and cathodes connected, the D.C. supply circuit of both valves including a high inductance between the cathodes and earth. The modulating triode 4 has its grid connected to a modulation source 1, 2 and is biassed negatively by a D.C. source 7. Its cathode is connected to earth through a constant-current network 23 and is biassed positively by a D.C. source 22. The anode of the valve 4 is earthed for radiofrequency voltages by a condenser 9 and is connected to the positive terminal of the D.C. power supply 10, the negative side of which is earthed. The carrier amplifier operates under Class C conditions and comprises a triode valve 12 with its grid earthed and its anode and cathode associated with resonant cavities 12a, 12b, the unmodulated carrier being applied to the cavity 12b by the concentric line 18 and the amplified modulated carrier taken off by the line 20. The anodes 6, 16 are directly connected, as also are the cathodes 5, 15. The effect of the modulating voltage on the grid of the valve 4 is to vary the current through this valve and therefore, on account of the constant-current effect of the inductor 23, to vary the current through the carrier valve 12 and the amplitude of its carrier output. The inductor 23 may comprise a series of coils of different inductance values, low resistance, and different resonance frequencies, in order to present high inductance over the wide band of frequencies included in television signals. In a modified circuit, Fig. 2 (not shown), the modulating stage, comprising two valves in parallel, is fed by a pre-amplifier stage, and the radio-frequency stage comprises a pair of valves with push-pull U-shaped connections for their anodes and cathodes.