baber/WOPTO huggingface dataset:
Patent GB-915411-A (GB)
Title: Process for controlling the concentration of the slurry supplied to a flotation plant
IPC: G05D21/02
Filed: 1961-03-23
Abstract: 915,411. Automatic mixture control. BETEILIGUNGSUND PATENTVERWALTUNGSGESELLSCHAFT. May 23, 1961 [May 24, 1960], No. 18609/61. Class 38 (4). In a system for controlling the concentration of a slurry supplied to a flotation plant a condenser serves to measure continuously the dielectric constant of the slurry, which is dependent upon its concentration, and a mixing and draining valve is controlled in dependence on the difference between the measured value of the dielectric constant and a predetermined value so as to maintain constant the concentration of the slurry. As shown, crude slurry, comprising a charge and water is fed to an agitating vessel 2 from a pipe 1. The slurry is drawn off by a pump 3 and fed through a riser pipe 4, a mixing valve 5 and a tubular capacitor 6 to an overflow vessel 7. The outflow from the overflow vessel 7 to flotation cells 8 is effected through an accumulator valve 9 which maintains constant the total quantity of slurry flowing into the flotation cells 8 per unit of time. The excess of slurry in the overflow vessel is returned to the agitating vessel through a line 10. The condenser 6 is coupled to a recording apparatus 12 which controls through a servomotor 13 and reduction gear 14, the position of a mixing and draining valve 15, variable from a " feed line open " position through a " feed-line " closed position to an " offtake line open " position for controlling the flow of water from a pipe 16 to the mixing nozzle 5. A magnetic valve 17 operated by the recording apparatus 12 interrupts the supply of water from the pipe 16 to the mixing and draining valve.
Patent GB-186327-A (GB)
Abstract: 186,327. Metropolitan - Vickers Electrical Co., Ltd., (Assignees of Aspinwall, L. M.). Sept. 23, 1921, [Convention date]. Electric equipment.-In electrically propelled road vehicles having a plurality of current collecting devices connecting with conductors of different potential, means are provided for automatically interrupting the motor circuit upon one of the collecting devices becoming inoperative, and the body or framework of the vehicle is automatically connected to the conductor which is of low potential relatively to the ground. The whole system is shown diagrammatically in Fig. 2, unnecessary parts being omitted. The conductors 5 and 6 are supplied with current from a power station generator 8<a>, the terminal connected to the conductor 5 being earthed. For maintaining the vehicle body &c. at or near ground potential, a metallic plate 21 on the body is electrically connected to a pivoted armature member 22 which is under the control of an electromagnet 24, the coil 25 of which is connected across the main circuit from the collectors 7, 8. The member 22 engages either of the contacts 28, 27 which are connected respectively to the collectors 7, 8 according to the direction of the current through the coil 25, the arrangement being such that the plate 21 is always connected to that one of the collectors 7, 8 which is at ground potential. The main circuit through the motor 4 is opened by means of automatic circuit breakers 15, 16 when either of the collectors 7, 8 becomes disconnected from its conductor. The circuit breakers 15, 16 are closed by electromagnets which are energized by current passing through the contacts 30, 31 of the main controller and through a relay switch 17 which is closed only when current flows through its operating coils between the collectors 7, 8. When either collector 7, 8 is disconnected from its conductor, the switch 17 opens as soon as the current fails. The contact breakers 15, 16 thereupon open and de-energize the motor circuit. In a modification, the contact breakers are combined and the relay 17 is dispensed with.
Patent GB-575263-A (GB)
Title: Improvements in power transmitting devices
IPC: B64C25/14
Filed: 1943-11-09
Abstract: 575,263. Controlling gearing screw and nut gearing. GENERAL MOTORS CORPORATION. Nov. 9, 1943, No. 18635. Convention date, Dec. 10, 1942. [Classes 80 (ii) and 80 (iii)] [Also 'in Groups XXX and XXXIII] Gearing for operating in particular the retractable undercarriage of an aircraft, comprises an electric motor 20, an electromagneticallyoperated clutch and brake 85, 72, 80 and an epicyclic reduction gear 61, 62, 49, 51 which drives,a screw shaft 41 co-operating with a non-rotatable nut 101, Fig. 3, in a casing 150 of the actuating gear. The magnet windings 88 are in series with the motor windings so that a disc 72 slidably connected to an input member 55 of the reduction gear is clutched to the driving disc 85 connected to the motor when the latter is energized for operation in either direction of rotation. A switch is manually operated to raise or lower the undercarriage and the movement is terminated on completion by limit switches which stop the motor and also release the clutch disc 72 which is then pressed into engagement by a spring 76 with the brake disc 80 to stop quickly the rotation of the gearing. The screw-shaft 41 and nut 101 are formed with helical grooves co-operating with balls 115 and shunt passages 111, 112 on the nut 101 are provided for the balls. In the event of mechanical or electrical failure of either the motor or the gearing, the nut 101 can be rotated manually through a flexible cable and a worm and wheel drive 175, 106, to move the casing 150 along the 'screwshaft 41 to actuate the undercarriage.
Patent GB-353191-A (GB)
Title: Improvements in mechanism for feeding signatures to book stitching machines
IPC: B42B2/00
Filed: 1930-06-18
Abstract: 353,191. Stitching book signatures. SCHRAMM, C., 91, Sylvan Avenue, West Hartford, and CLARK, E. W., 8, Nepaug Street, Hartford, both in Connecticut, U.S.A. June 18, 1930, No. 18642. [Classes 89 (iii) and 112.] A feeding mechanism for a signature stitching machine comprises a fixed saddle 1 upon which signatures are placed by hand and along which they are fed by a pusher 6 on to an oscillating saddle 44, which carries them to stitching position. The fixed saddle comprises inclined plates 1, 2 spaced apart at the apex for passage of the pusher 6. The latter is spring-connected to a slide 11 which is reciprocated on a bar 12, running the length of the saddle 1, by links 15, 16, 17 and a cam 21 on the main shaft 22 of the machine. The pusher carries a stud 23 which moves in a groove 24 formed in a plate 25 that is adapted to be raised and lowered, at appropriate times, by links 29, 30, 31 and a cam 32. This movement of the plate 25 causes the pusher to be raised above the apex of the saddle 1 during its forward travel, and lowered beneath it during its return movement. As the pusher moves forward, a guard 33 is swung inwards, to hold the signature leaves from flying out, by links 34, 35 and a cam 37. A plate 38 on the guard prevents a second signature being placed on the saddle before the first has moved clear. A guide 39 is arched over the inner end of the saddle, and has an adjustable continuation 42 extending over the outer end of the oscillating saddle. The latter comprises inclined plates 44, 45 secured to a head 43 carried by arms 47 fixed on a rock-shaft 48. The arms 47 have extensions engaged by cams 49 to swing the saddle, at appropriate times, to the stitchi n g position, indicated in dotted lines, Fig. 3. The pusher 6 feeds a signature on to the oscillating saddle up to an adjustable spring stop 50, Fig. 6, which is pushed back by the pressure of the pusher. When the latter returns, the stop 50 returns the signature against a gauge 56, which is given a slight movement sidewise by a lever 58 to locate the signature accurately. A concave member 59 is arranged to press down, and retain, the signature on the saddle 44 during its movement to stitching position. It is carried by a lever 61 which has a roll 67 engaging in a cam groove 68 designed to turn the member 59 away from the saddle as it reaches stitching position. The member 59 carries two rolls 65, 66 which engage cams 73, 70 respectively at the stitching and receiving limits of the movement of the saddle, in order to lift the member 59 away from the saddle at these positions. A guide 74 is operated by a cam 77 to hold the signature to the plate 45 of the oscillating saddle during its movement to stitching position. A yielding finger 81 is arranged to hold the signature against the plate 44 of the saddle as it is fed thereto.
Patent GB-995875-A (GB)
Title: Reactive metallised azo dyestuffs
Inventor: BARBEN IAN KNOWLES
IPC: C09B62/032
Filed: 1962-05-15
Abstract: The invention comprises the copper, chromium or cobalt complexes of sulphonated mono-, dis- or tris-azo dyes which contain in o,o1-position to a least one azo group two hydroxy groups or a hydroxy group and a carboxy group, and which contain attached to a benzene or naphthalene ring in the dyes, one or two groups of formula <FORM:0995875/C4-C5/1> wherein V is a phenylene or sulphophenylene radical; m and p are 1 or 2: R is a hydrogen atom or a C1- 4 alkyl group; R1 and R2 are methyl groups and R3 and R4 are hydrogen atoms or methyl groups, or when R3 and R4 are hydrogen atoms R1 and R2 are joined to form a tetra- or penta-methylene radical, or R1 and R3 and R2 and R4 are joined together to form in each case a trimethylene radical and X is a divalent mono- or di-chloropyrimidyl, 5-cyanomonochloropyrimidyl radical or divalent 1,3,5-triazinyl radical substituted in the 6-position by a hydrogen atom, C1- 4 alkyl, C1- 4 alkoxy, phenyl, phenoxy, amino or substituted amino group.  The dyes are prepared by reacting an appropriate metallized dye containing a group of formula <FORM:0995875/C4-C5/2> with a hydrazine of formula <FORM:0995875/C4-C5/3> Specified hydrazines include N,N,N1-trimethyl-and N,N,N1,N1 - tetramethyl - hydrazine, N-aminopiperidine or - pyrrolidine, 1,5 - diazabicyclo - (0: 3: 3) - octane and, preferably, N,N - dimethyl - hydrazine.  The dyes may be used to colour wool, silk, polyamide and, preferably, cellulose fibres by the usual processes for reactive dyes.  Examples describe the preparation of the dyes.  Specifications 846,949, 850,559, 859,198, 863,758, 870,985, 882,890, 887,867, 895,449, 896,675, 896,785, 902,726 and 923,886 are referred to.
Patent GB-146840-A (GB)
Title: Improvements in apparatus of the divining-rod type for detecting the presence of subterranean substances and for like purposes
IPC: G01V9/00
Filed: 1920-07-05
Abstract: 146,840. Schermuly, P. May 20, 1916. [Convention date]. Prospecting a n d w a t e r - finding. - Minerals, coal, water, oil, &c. are located by divining-rod apparatus comprising a rod a of steel, iron, copper, or other metal, or of a combination of metals, or of wood, rattan, whalebone, &c. which is suitably coiled to form elastically - connected branches, one branch being supported in bearings b and the other branch, which passes through a slotted graduated guide c, being graduated and free to oscillate and adjustably carrying a spring or slide d to which is suspended a reacting substance or a container e therefor. In a modification, two rods a, Fig. 3, are pivoted on a stud g by means of a spring ring h. The apparatus may be inverted and is stated to be applicable for analysing and testing purposes. The reacting substance is preferably of the same nature as the substance sought for, but sulphur may be employed in gold-finding and a mixture of specified metals in water-finding. Specification 979/12 is referred to.
Patent GB-1425161-A (GB)
Title: Process for increasing the coefficient of friction of textile yarn or cloth
IPC: D06M15/643
Filed: 1972-04-22
Abstract: 1425161 Coated yarn or fabric BONAS BROS LTD 1 Dec 1972 [4 Dec 1971 22 April 1972] 56408/71 and 18781/72 Heading B2E The coefficient of friction of textile yarn or fabric is increased by applying to at least a part of the yarn or fabric an inert non-slump room temperature vulcanising silicone rubber having an elongation of at least three times that of the yarn or fabric, and thereafter vulcanising the rubber. A mixture of the rubber and a self levelling silicone rubber having an elongation of more than 400% and trichlorethane as a lubricant may be applied by extrusion through one or more jets. Preferably the mixture is filtered to remove air bubbles and sheared before application to the yarn. As shown in Fig. 3, tape from bin 48 is led below jets and lines of extruded mixture is formed longitudinally thereon. Take-off roller 54 is directly coupled to the first stage magazine roller 56 and second stage roller 58. The take-off and magazine are driven by a constant speed motor, and feed roller 50 is driven by a d.c. motor controlled by a closed-loop system whioh controls the armature voltage by thyristors. Potentiometer 60 provides the required trim and is actuated by dancing roller 52 so that the fabric is at constant tension. Tension is adjusted by varying counterweight 80 in relation to roller 52. The fabric passes over saddle 64 which can be stationary or made to reciprocate. The mixture from nitrogen pressurised-vessel 74 flows through the filter trap 72, through valve 70 to the jet manifold for extrusion. The size of the bead extruded is controlled by pressure regulator 76. As shown in Fig. 1 the jet manifold comprises a hollow, open-ended housing 10 provided with external threads 12 at each end, a solid insert held in the housing by internally threaded end caps, an inlet port 16 to which a delivery pipe 18 is secured and a plurality of internally threaded outlet ports 20. Jets 22 are engaged in ports 20. The inlet and outlet ports are interconnected by passageways extending through the insert and having a decreasing cross-sectional area. As shown in Fig. 2 the filter trap comprises a hollow chamber 30 having inlet port 32 to which the mixture is delivered, a pipe 34 leading from inlet port 32 to the bottom of screen filter 36, and a mixture outlet port 42. Accumulating gases from the silicone mixture are vented through port 44 at the top of chamber 30.
Patent GB-496688-A (GB)
Title: Improvements relating to indicating apparatus for use in gun control
IPC: F41A27/02
Filed: 1937-07-06
Abstract: 496,688. Gun control. EVERSHED & VIGNOLES, Ltd., and SHORT, W. J. July 6, 1937, No. 18812. Addition to 474,293. [Class 92 (i)] The invention claimed in the parent Specification is modified by dividing the elevation contacts of the model switch into as many parts as there are guns in the endangered and endangering turrets, the arrangement being such that each part of the elevation contact of one turret can co-operate with a part of the elevation contact of another turret. In the construction shown, the elevation contact parts ea<1>, ea<2> of the endangering guns a<1>, a<2> are actuated independently by electric repeater motors Ea<1>, Ea<2>, whereby each part follows the elevating movements of the gun with which it is associated. In a similar manner, the contact parts eb<1>, eb<2>, of the endangered guns b<1>, b<2> are actuated by motors Eb<1>, Eb<2>. The part eb1 carries two contact members 9, 10, and the part eb<2> carries two contact members 11, 12, the arrangement being such that the pairs of members 9, 11 and 10, 12 co-operate respectively with the contact parts ea<1> and ea<2>. The supporting carriages 13 of the contact parts of the endangered gun are mounted for independent sliding movements upon telescopic shafts 15. The carriages are moved during the training movements of the guns b<1>, b<2>, by suitably shaped cams k, k<1>, the shafts j of which are geared to the training repeater motor TB of the endangered guns. The contact tb is moved axially towards and away from the axis 20 by mechanism geared to the motors Eb<1>, Eb<2>, such mechanism being similar to the mechanism shown in Fig. 3 of the parent Specification.
Patent GB-530619-A (GB)
Title: Improvements in or relating to the production of articles of regenerated cellulose
IPC: B29C41/14
Filed: 1939-06-20
Abstract: 530,619. Coated fabrics. BOLOGNESI, I. June 20, 1939, No. 18856/38. [Class 140] [Also in Group IV] Fabrics or paper are coated with regenerated cellulose by dipping the fabric or paper into successive solutions of cellulose, superficially hardening each layer by partial coagulation between successive dippings and then completing the coagulation and regeneration of the multilayer article by treatment in a final coagulating bath. The successive layers may be of decreasing viscosity. The superficial hardening may be effected by using a solution containing a highconcentration of salt and of low acidity. The superficially hardened layer may be washed by a very dilute alkaline solution, e.g., by spraying, so as to eliminate salts and acid, before the next dipping in a cellulosic solution. The coated material may finally be dipped into a solution of magnesium, zinc, tin, or ammonium chloride or sulphate if the coating is required to be made plastic. One of the solutions may contain mica, talc, dyes, or fibres. One of the surface layers may be made sufficiently rough by incorporation of fillers so that it may readily be caused to adhere to other surfaces. Specification 527,664 is referred to.
Patent GB-142372-A (GB)
Title: Improved means for preventing damage to pneumatic tyres when deflated
IPC: B60B11/10
Filed: 1919-07-30
Abstract: 142,372. Marks, E. C. R., (Englebert Fils et Cie, O.). July 30, 1919. Pneumatic and solid tyres side by side on same wheel.-Relates to devices for preventing damage to pneumatic tyres after deflation of the kind in which an auxiliary tyre 4 of less diameter than the pneumatic tyre 2 is provided, the pneumatic tyre and the auxiliary tyre being each carried by a separate wheel 1, 3 and the auxiliary tyre carrying wheel being arranged next to the vehicle to allow access to the wheel carrying the pneumatic tyre. The invention consists in providing the nave 5 of the auxiliary wheel 3 with a cylindrical extension 6 on which is mounted the nave 8 of the wheel 1 carrying the pneumatic tyre, and in connecting the two wheels together by bolts 9 which pass through flanges 10 on the naves. The auxiliary tyre may consist of a metal rim, a solid rubber or a pneumatic tyre.
Patent GB-455524-A (GB)
Title: Improvements in devices for dispensing lubricant and the like
IPC: F16N3/12
Filed: 1935-07-03
Abstract: 455,524. Grease guns. THOMAS, E. M., Meatian, Victoria, Australia. July 3, 1935, No. 18968. [Class 102 (i)] A grease gun comprises a h.p. plunger 12, operated in barrel 6 by means of a bent handle 14, and a l.p. piston 19, which is connected by means of side rods 16 to a handle 17. The piston 19 operates in a reservoir 2 which supplies the barrel 6, and the latter discharges by a passage 7 to a nozzle 8 having a perforated washer 9. The reservoir 2 has end caps 4, 11, the former being integral with the barrel 6. The handle 17 may be acted on by a spring or springs connected to the reservoir 2.
Patent GB-770150-A (GB)
Title: Improvements in or relating to photographic roll films
Inventor: THORNTON JOHN WILLIAM NOAH
IPC: G03C3/02
Filed: 1955-06-30
Abstract: 770,150. Photographic roll films. ILFORD, Ltd. June 30, 1955, No. 18976/55. Class 98(1) The tapered end 3 of the backing paper of photographic roll film is not folded under in the usual manner, but is sealed with a strip 4 which lies over the tapered end and the underlying coil of paper 2 and covers at most only part of the extreme edge of the tapered end and lies at least partly over one of the tapered edges of said end, substantial as shown in Figs. 2 or 3.
Patent GB-731803-A (GB)
Title: Improvements in or relating to plain bearings
Inventor: FORRESTER PETER GARNETT
IPC: F16C33/00
Filed: 1951-08-13
Abstract: 731,803. Impregnated bearing surfaces. GLACIER METAL CO., Ltd. Nov. 7, 1952 [Aug. 13, 1951], No. 19011/51. Class 140. Plain bearings are made by providing a backing or support of a rigid metallic or non- metallic matrix material having a porous or sponge structure at least in a surface stratum, introducing polytetrafluoroethylene into the porous structure, forming the material into the desired .shape and size, treating the matrix material at the bearing surface with a liquid reagent capable of attacking it and of removing the reaction products as a gas, liquid or solid soluble in the reacting liquid so as to leave a porous polytetrafluoroethylene layer above the matrix, and consolidating the porous polytetrafluoroethylene layer by the application of heat and pressure. Any solid insoluble reaction product remaining after treatment with the reagent may be washed out by a liquid stream. The polytetrafluoroethylene may be pressed at about 350-400‹ C. at about 16 tons per square inch. The matrix material may be copper, bronze, iron, -nickel, stainless steel or glass. When using sintered glass, the polytetrafluoroethylene may be vacuum impregnated into the pores; alternatively, glass containing minute gas bubbles may be employed, the polytetrafluoroethylene rupturing the surface bubbles on being hot pressed onto it and thus entering the so-formed surface cavities. Copper or copper-lead-tin matrices may be strengthened by a steel backing. In an example a sintered copper layer of thickness slightly in excess of the desired bearing bush is impregnated with polytetrafluoroethylene by hot pressing. Holes slightly smaller in ,diameter than the desired diameter .of the bore are drilled in the material and the bushes trepanned out to give a slightly larger outside diameter than required. The copper is re- ;moved by dilute nitric acid to a depth of 0.002 inch and the bearing bushes washed and finally heated at 350‹ C. with a highly polished plug positioned in the bore. Specifications 657,080; 707,065 and 731,348, [both in Group XXXIV], are referred to.
Patent GB-405192-A (GB)
Title: Improvements relating to the manufacture of milk powder
IPC: A23C9/123
Filed: 1933-07-05
Abstract: <PICT:0405192/III/1> Apparatus for spray drying a liquid milk product consists of a rotating drum 3 into which the liquid supplied by a pipe 1 is sprayed through an atomising nozzle 2, hot air for drying being fed to the drum through a pipe 5, the hot air and vapours leaving through a pipe 6.  The drum 3 is connected to the negative pole of a source 4 of electrical potential and nozzle 2 to the positive pole.  The nozzle 2 is insulated from the drum by insulators 7 and from the pipes 1, 5 by insulator 8.
Patent GB-242566-A (GB)
Title: Manufacture of carpenters' planes
IPC: B21K5/12
Filed: 1925-07-28
Abstract: 242,566. Haines, G. de N. July 28, 1925. Hand tools.-The body Fig. 14 of a plane is formed by hammering a bar A between dies to thin down the ends as in Fig. 2, drop forging between dies B, B<1> to form the blank B<2>, Figs. 4 and 7, with frog attaching lugs 20 and side pieces 27 &c. shearing off the excess side pieces 28 in dies, bending the side pieces vertically upward in dies D, D<1>, Fig. 10 and finishing in other dies. The dies B, B<1> also form projections 23, 25 for the handle, and a projection 17 for the knob, a frog base with inclined ribs 19, cross rib 22, vertical parts 26, and a thin part in the sole where the blade slot is subsequently cut. The forging and shaping is done while the body is attached to the unused portion of the bar by which it is rapidly transferred from one operation to another to save re-heating.
Patent GB-208568-A (GB)
Title: Improvements relating to horticultural, agricultural and like spraying apparatus
IPC: B05B1/30
Filed: 1923-04-12
Abstract: 208,568. Tailby, N. April 12, 1923. Lift valves.-The stem of a cut-off valve c for horticultural and other spraying nozzles is provided with a finger piece e extending on both sides of the stem, the parts being so arranged that the finger piece may be grasped by two fingers of the hand which holds the nozzle.