baber/WOPTO huggingface dataset:
Patent GB-620635-A (GB)
Title: Improvements in or relating to photographic objectives
IPC: G02B9/34
Filed: 1947-01-24
Abstract: 620,635. Optical objectives. KODAK, Ltd. Jan. 24, 1947, No. 2292. Convention date, Feb. 9, 1946. [Class 97 (i)] In an objective consisting of four air-spaced components, the first of which is a positive meniscus convex to the front, the second a negative meniscus convex to the front, the third a positive meniscus and the fourth a meniscus of long focal length, the two latter being concave to the front and enclosing between them an air-space having the shape of a positive meniscus lens, the first and third components each consists of a negative element cemented to the front of a positive element having a refractive index at least 0.04 greater than that of the negative element to which it is cemented, the cemented surfaces of the said positive components being convex to the front. The fourth component may be positive or negative. Data are given for one example of the objective shown, the fourth component being a negative doublet.
Patent GB-535158-A (GB)
Title: An appliance for use with packing machines
IPC: B65B39/06
Filed: 1940-02-08
Abstract: 535,158. Packing. SMITH, A. R. Feb. 8, 1940, No. 2452. [Class 94 (i)] A device for facilitating the charging of tins or like receptacle with powdered or other material which requires to be shaken down comprises a base a on which a tin b can be supported, a combined cap or cover d and funnel e, and springs f or like resilient devices connecting the base a with the cover d. The base a is provided with pressed-up tongues c or other means for locating the tin b, and it may be made of such a size that when a series of bases are placed in contact with one another on the conveyer of a machine the tins are spaced apart the required amount. The springs hold the tin securely in position but allow the cover and the base to be separated for removal and insertion of a tin.
Patent GB-281895-A (GB)
Title: Improvements in inductance coil holders
IPC: H01F27/00
Filed: 1927-01-27
Abstract: 281,895. Lissen, Ltd., and Richardson, R. P. Jan. 27, 1927. Wireless tuning-apparatus, adjustment devices for.-A sheet metal segment 14 is moulded into the insulating block forming the body of the movable coil support 5 and is gripped frictionally between discs 13 carried by the operating shaft 8, by which fine adjustment is effected. The grip of the discs 13 on the segment 14 may be adjusted by means of nuts 10 so that the coil support 5 is movable by hand for coarse adjustment. The pivots of the movable coil support are electrically connected with the plug and socket respectively and enter recesses in the terminal screws 7. Good contact is ensured by inserting helical springs in the recesses or by splitting the ends of the pivots.
Patent GB-1524892-A (GB)
Title: Phosphate esters containing hydroxy groups and their use as reactive flame retardants
IPC: C08K5/52
Filed: 1976-01-22
Abstract: 1524892 Flame-retardant polymers UNIROYAL Inc 22 Jan 1976 [23 Jan 1975] 2492/76 Heading C3R [Also in Division C2] A flame-retardant composition comprises an organic polymer, e.g. a polyurethane or polyester, and a flame-retardant amount of a phosphate ester having the general formula wherein A has the structural formula and B has the structural formula wherein R, R<1> and R<2> are the same or different and are primary radicals selected from C1-C6 alkyl, C2-C6 haloalkyl and C2-C6 hydroxyalkyl, m and n are integers from 0 to 4 and m + n is from 1 to 4. The phosphates may be incorporated into the polymer backbone and examples are given for the production of flameretardant rigid polyurethane foams by including various of the defined phosphates in rigid polyurethane foam-forming formulations of specified conventional type, the phosphate ester being chemically bound in the resulting polymeric product.
Patent GB-1355633-A (GB)
Title: Anti-skid braking system
IPC: B60T8/60
Filed: 1973-01-17
Abstract: 1355633 Anti-lock braking system SOC ANON DBA 17 Jan 1973 [25 Jan 1972] 2511/73 Heading F2F An anti-lock braking system comprises a fluid pressure operated brake actuating means associated with a wheel, a sensor C for sensing the speed of the wheel and for supplying a voltage representative of the speed through a resistance 10 to an electronic circuit capable of generating pressure release signals to means for releasing the fluid pressure from the brake actuating means. The circuit comprises a capacitor 16 charged by the speed representing voltage through a one-way conducting means, e.g. a diode 12, and caused to discharge at constant current by a device 18, the circuit supplying a release signal when the voltage across the capacitor is in a predetermined relation to the speed representative voltage. The electronic circuit is provided with a protecting means, e.g. a diode 14, for preventing the voltage agross the capacitor from exceeding the speed representative voltage plus a given fixed voltage. The given fixed voltage is effectively the voltage drop across the diode 14 which conducts when the aforesaid voltage is exceeded to discharge the capacitor 16 through the resistance 10, the discharge being at a greater rate than prior to the voltage being exceeded. This effectively reduces the brake pressure release time compared with the brake release time when such a protecting means is absent from the circuit (Fig. 3, not shown). In a modification the resistance is replaced by a resistancetriode circuit and the diode 14 by a plurality of diodes in series (Fig. 4, not shown). The device 18 is formed by an assembly of two transistors and two resistors, one of the latter being adjustable.
Patent GB-1216756-A (GB)
Title: Device for extracting recognisable features of a speech signal
Inventor: TSCHESCHNER WALTER
IPC: G10L15/00
Filed: 1968-01-17
Abstract: 1,216,756. Speech recognition; teaching aids. ELEKTRONISCHE RECHENMASCHINENWISSENSCHATLICHER INDUSTRIEBETRIEB KARL-MARX-STADT VEB. 17 Jan., 1968, No. 2530/68. Headings G4R and G5G. [Also in Division H4] A device for extracting recognizable features of a speech signal breaks down the speech signal into individual frequency groups, measures the effective sound pressure value of the frequency groups, and transforms the resulting values into a two-dimensional geometrical figure having logarithmic ordinate pressure graduation and linear abscissa frequency graduation. The sound pressure value mentioned is root mean square pressure. The transformation mentioned is done using optical fibres of different lengths excited via an electromechanical transducer so that light shone down the fibres produces a display of lines of differing lengths on a screen which is curved to produce the. logarithmic graduation and is viewed using a mirror. The display can be recognized using templates. Application to automatic speech recognition, speech synthesis and analysis for data-processing installations, finding the most economical transmission of speech signals over communication devices, language teaching, developing speech in the deaf, and health treatment, is mentioned.
Patent GB-187172-A (GB)
Title: Improvements in or relating to cylinder covers for internal combustion engines
IPC: F02F1/24
Filed: 1922-01-28
Abstract: 187,172. Swan, Hunter, & W. Richardson, Ltd., Rowntree, F., and Belyavin, P. Jan. 28,1922. Cylinders, cooling.-The cylinder cover A is formed with two annular water spaces E, E' sealed by a securing ring B in which are two water spaces F. F'. The spaces E, E<1> are separated by a conical or flat partition a<3> and communicate through a hollow plug e which extends to the bottom of the water space E' to ensure draining of this space when the jackets are emptied. The cover A is secured by a flange a<2> clamped between the ring B and the cylinder, and the water circulates from the cylinder jacket c' to the chambers F, E, E', and F<1> in succession. Bushes a, a<1> are provided for the valves; there are ribs a<5> within the space E', and water-tight packings are provided at b<1>, b<2>. The cover may be used to close a larger annular cover instead of being fixed direct to the cylinder as shown.
Patent GB-654621-A (GB)
Title: Measuring instrument movement
IPC: G01G3/02
Filed: 1946-01-26
Abstract: 654,621. Indicating-apparatus. WEINGART, R. I. N. Jan. 26, 1946, No. 2657. Convention date, May 14, 1943. [Class 106 (iv)] [Also in Group XVIII] A movement for a measuring instrument comprises a rotary element driven by a longitudinally-moving element which exerts a force having a component tending to displace the first element axially, characterized by means moving with the driving element for preventing such axial displacement. Fig. 1 shows a weighing machine wherein a pan 24 is suspended from a plate 26 fixed to a threaded rod 27 which is locked by nuts 29 to a beam 28 and is suspended from a frame 10 by a spring 44 engaging pins 52, 53 fixed in an adjustable nut 50. Vertical arms 30, 38 of a driving member 37 are fixed to the beam 28, pass through bushes 32 in the frame 10 and have stops 40 to limit downward movement, while the diagonal part 37 engages a helical recess 16 in a cylinder 15 whose spindle 14 carries a scale 21, the arm 30 engages a groove 33 in a thrust element 34, so that downward movement of the scale pan 24 causes rotary movement of the scale 21. A hair spring 18 takes up backlash. If desired, a transverse member may be provided to press yieldingly against the driving elements 30 and 37 forcing them into firmer engagement with the recesses 33 and 16, thus eliminating the necessity for a hair spring. Fig. 3 shows a recess 16 in the driven element 15 with opposed walls at about 30 degrees from the vertical and driving element comprising a plate 60 with recess 61 to carry a driving member 62, which may be of metal alloy or plastic, and whose driving edges 64 contact opposed walls of the recess 16 so that the hair spring may be eliminated, springs 65 yieldingly urging the elements together. Fig. 4 shows a similar recess 16 and plate 68 with recesses 69, 72 carrying driving members 70, 73, the member 70 being rectangular or round in section and smaller than the recess 16, so engaging only one face and the member 73 engaging a thrust surface 75 to present longitudinal movement, a hair spring being required. A driving element as in Fig. 3 may have a semicircular cross-section and contact the opposed edges of the recess 16 rather than its opposed faces. The driven element may have two oppositelydisposed helical recesses engaged by a Y- shaped driving element. Recesses and cooperating projections may be interchanged between driving and driven elements. Fig. 6 shows a driving element in the form of a block 83 for mounting in channels or slideways and provided with elements 84, 85 which may be curved or straight or have two or more unaligned straight parts to give the results desired.
Patent GB-1176551-A (GB)
Title: Anchoring of Heat Resisting Metal Pipes Conveying Hot Fluids
Inventor: PAPE BRIAN
IPC: F22B37/14
Filed: 1967-01-18
Abstract: 1,176,551. Pipe joints; supporting pipes. POWER-GAS CORP. Ltd. 18 Jan., 1967, No. 2658/67. Headings F2G and F2P. A metal pipe 1 for conveying hot fluid, e.g. gases, from a furnace 10 to a header 14, is anchored to a rigid structure 6 by means of a tubular piece 2 arranged coaxially around and radially spaced from the pipe, an annular endplate 3 rigidly secured to the tubular piece and the pipe as by welding, and an anchor plate 5 rigidly secured, e.g. welded, to the tubular piece at a position axially spaced from the end-plate and adapted to be bolted to the rigid structure 6, refractory material 4 of low thermal conductivity filling the annular space between the tubular piece and pipe. The pipe, end-plate, and tubular piece may be of high grade heat-resisting metal such as an alloy consisting of 30 to 35% by weight nickel, 19 to 23% by weight chromium, and the balance iron. The anchor plate may be of lower grade heat-resisting metal such as 18/8 type chromium/ nickel stainless steel. Guide lugs 8 may be welded to the pipe. Figs. 3 and 4 (not shown), each illustrate a pipe similarly anchored to a rigid beam structure at two positions. The arrangement is said to avoid accumulative stresses and bending moments on the pipe due to temperature differentials.
Patent GB-500910-A (GB)
Title: Improvements in or relating to metronomes
IPC: G04F5/02
Filed: 1938-01-28
Abstract: 500,910. Metronomes. FRANZ, F. Jan. 28, 1938, No. 2763. [Class 88 (ii)] In a metronome wherein a rotary driving member frictionally drives a hammer-actuating disc rotatable on an axis which is tiltable to vary the point of engagement with the driving member, the tiltable axis is arranged transverse to the axis of the driving member. In the Figure an electric motor with starting switch 20 drives, through reduction gearing 19, 22, a member 24 having a concaved conical surface with which surface a rotary disc 31 frictionally engages. The disc is carried in a frame 28 which according to the speed required is tilted, by an arm 43 moving over a scale 46. about an axis 29. The member 24 is maintained in contact with the edge of the disc 31 by a spring 23 acting on its spindle 21. The spindle of the disc 31 carries a cam actuating a spring-controlled hammer 39, also mounted on the frame 28, giving audible beats on the case. The device provides finer variation at lower speeds. With an electric motor of sufficiently low speed the use of a countershaft 21 may be obviated, Fig. 4 (not shown), the motor and the member 24 being arranged vertically, and the weight of the armature and the member (slightly assisted if desired by the magnetic flux) maintaining the member 24 in contact with the disc 31. In another construction, Fig. 5 (not shown), the driving member 24 takes the form of a part of a spherical shell.
Patent GB-1096592-A (GB)
Title: Electrolytic reduction for solutions containing nuclear fuel material
Inventor: PARKINSON NORMAN
IPC: C25B1/00
Filed: 1965-01-22
Abstract: <PICT:1096592/C6-C7/1> In treating nuclear fuel material (see Division G6), a solution containing U with or without Pu, e.g. uranyl nitrate and nitric acid with or without Pu (IV) nitrate, is electrolytically reduced to change the valency state of the U or Pu constituents, e.g. to yild a solution containing U (IV) ions and/or Pu (III) ions, using a Ta cathode e.g. in the form of wire, gauze or sheet.  Urea and ferrous sulphamate may be added to the solution. As shown, one of a number e.g. seven of electrolytic cells 10 connected in series for flow of solution e.g. via inlet 11 and outlet 12 contains a Pu wire anode 14 wrapped with a glass coil 13 for water cooling and surrounded by an entangled Ta wire cathode 18 disposed in an outer annular cathode compartment 17 separated from the inner anode compartment 16 by a PVC membrane 15. The resulting U (IV) and/or Pu (III) ions are precipitated as oxalates which are calcined to form oxides.
Patent GB-819472-A (GB)
Title: Improvements in or relating to cash registers and like adding machines
IPC: B41J35/14
Filed: 1955-02-01
Abstract: 819,472. Cash-registers; calculating-machines. GROSS, H., and GROSS, S. Jan. 20, 1956 [Feb. 1, 1955], No. 2943/55. Class 106 (1). [Also in Group XVI] A cash register or like adding machine has a manually operated selector for enabling any transaction item, as distinct from a total, to be printed in a colour different from normal or in any one of a number of selective colours. In one form of construction, applied to a key-operated cash register, a ribbon shift lever 33, Fig. 1, is manually adjustable rearwardly or forwardly from a normal position in which a central black section of the ink ribbon is presented to the printing line. Marginal green and red sections of the ink ribbon are presented in the rearward and forward positions, respectively, of the lever. Spring-actuated levers 35 engage a stud 34 on the lever 33 to bias it towards its normal position, a latch 45 co-operating with another stud 43 on the lever to retain it when adjusted to either side of the normal position. When the machine is operated, the oscillation of the key coupler shaft 59 raises and then lowers a bar 53, causing a pawl 51 to trip the latch 45 so that the lever 33 is restored. Adjustment of the lever 33 is therefore necessary for each item required to be printed in colour on the record strip, the mechanism automatically reverting to black after a red or green print has been made. In another form, Fig. 8, all three colours are selected by means of push-buttons 73; all three sections of the ink ribbon lie normally clear of the printing line and the machine is locked against operation until a colour has been selected. The ribbon shift lever 31<SP>1</SP> is normally held by a spring 70 against a stud 31a with the ribbon clear of the printing line. The stems of the push-buttons 73 are adapted to rock the lever differentially and so bring the corresponding section of the ribbon into position, a pawl 76 retaining the operative button and lever set. A locking bar 83 normally engages over a sector 58<SP>1</SP> on the key-coupler shaft to prevent operation, but is rocked clear by means of a lever 78 rocked by a stud 77 on the stem of the depressed push-button. Pawls 51<SP>1</SP> on a bar 53<SP>1</SP> linked to the sector 58<SP>1</SP> trip the pawls 76 and so release the depressed push-button when the machine is operated to enter an item. The first Provisional Specification describes a construction in which a bichrome ribbon is automatically changed from black to red at the commencement of machine operation. A locking pawl normally prevents the change but is disabled by depression of a red shift key. A modification of this mechanism to a further colour selectable by a second colour shift key is also described.
Patent GB-138699-A (GB)
Title: Clutches or couplings for motor cycles and the like
IPC: F16D13/52
Filed: 1919-02-06
Abstract: 138,699. Fisker, P. A. Feb. 6, 1919. Clutches, arrangements and applications of. - Comprises a multi-plate clutch for motor-cycles in which the plates are compressed between a flange 4 on the driven shaft 3 and a cup-shaped member 9 by means of a spring 12 bearing against the member 9 and a flange 25 fixed to the driven shaft. The member 9 slides on pins 7, 8 connecting the flanges 4, 25, the latter of which rotates on the hub of the driving-member or fly-wheel 2. The clutch is released by means of a sliding rod 17, which, as it compresses the spring 12, moves the shaft 3 to the left and brings a disk 20 fixed thereto against a fixed braking-surface 21. The clutch is readily dismantled by pulling the shaft 3 away from the fly-wheel 2, both sets of plates coming away at the same time.
Patent GB-259091-A (GB)
Title: Improved copper-silicon alloys
IPC: C22C9/10
Filed: 1926-02-02
Abstract: 259,091. Denecke, W. Feb. 2, 1926. Alloys. - Copper-silicon alloys contain about 5-10 per cent of silicon and 1.5-12 per cent of one or more of the metals iron, nickel, and cobalt; up to a total of 5 per cent of one or more of the metals chromium, tungsten, molybdenum, titanium, and vanadium, and up to 1 per cent of arsenic may also be present, small amounts of tin, zinc, and lead being also permissible. The copper may be used in pure or commercial form or as copper-nickel or silicon copper; and the silicon may be used alloyed with copper, iron, nickel or cobalt, or with iron and nickel, or iron and cobalt. Arsenic may be used as ferro-arsenic.
Patent GB-164079-A (GB)
Title: Improvements in driving mechanism of automobile vehicles
IPC: F16H15/10
Filed: 1920-01-31
Abstract: 164,079. Ashby, V. S. Jan. 31, 1920. Variabde-speed friction gearing. - The road wheels of a motor vehicle are driven through continuously-variable friction-disc gear and epicyclic reducing gearing. A planet carrier D fixed to the axle A has planet pinions E which gear with a driving sun-wheel C and a toothed ring F held stationary against springs bv an arm f<1>. The sun-wheel C is fixed on a sleeve B driven through a friction-disc L and slidable roller K. The driving-disc. shaft M has a sliding ball-and-socket joint at its forward end, and is pressed rearwardly against the roller M by a spring N connected to the lever P for shifting the roller, so that as the roller moves towards the centre of the driving disc the pressure between the roller and the disc is increased. This effect may also be obtained by using a number of springs, some of which are stressed only part of the time.
Patent GB-140554-A (GB)
Title: Improvements in or relating to the starting and synchronising of synchronous dynamo electric machines
IPC: H02J3/42
Filed: 1919-02-08
Abstract: 140,554. Grime, R. E., and Mather & Platt. Feb. 8, 1919. Systems depending on the use of two or more machines.-A synchronous machine, shown as a six-phase rotary converter 1, Fig. 1, is started by an auxiliary induction motor 5 which may have a squirrel cage, wound slip-ring, or unwound rotor. The stator of the motor has windings 6, 7, 8 with taps connected to a transformer 17 through the switch 28. For starting, the switch 15 is open and the switch 28 is in the position shown, connecting ail the windings 6, 7, 8 in circuit between the transformer and the converter rotor windings. When the speed is nearly full speed, the switch 28 is thrown to its other position to cut out part of each winding 6, 7, 8. The converter pulls itself into synchronism, and when the voltage has built up, the switch 15 is closed to connect the converter windings directly to the transformer. In a modification, each phase winding of the starting-motor is in two parts which are connected in series at starting and in parallel at synchronism, and, in another modification, the transformer windings are varied by means of taps. In the arrangement shown in Fig. 4, the synchronous motor 1 is started by the motor 5 with its windings 6, 7, 8 star-connected. Near synchronism, the switch 28 is thrown to connect the windings 6, 7, 8 in delta, and the switch 15 is operated to cut out the auxiliary motor. The Provisional Specification states that a resistance may be connected across the terminals of the starting-machine, or the machine may be connected between the supply and tappings of the synchronous machine.
Patent GB-328628-A (GB)
Title: Improved method of, and means for, producing decorative effects
IPC: B44C1/28
Filed: 1929-01-30
Abstract: 328,628. Thornton, N. Jan. 30, 1929. Ornamenting.-Decorative effects applicable for use, for instance, in connection with panels, windows, furniture, interiors, and signs, are produced by arranging pieces of clear or opaque white or multicoloured g1ass, ge1atine. ce11u1oid, fabrics, paper, veneer. &c. in juxtaposition, with the addition, if desirable, of superposed pieces, to form a pattern, app1ying, as a foreground, background. or support a sheet so formed and apertnred that parts are of relatively 1arger superficial area and are shaped to assist in the decorative effect, whi1e the sheet also provides, where necessary or desirab1e, binding-means for the juxtaposed pieces. The binding-means may be supplemented by the use of separate strips applied to adjacent edges of the juxtaposed pieces. Where the pieces are made by gelatine, the gelatine may be subsequent1y hardened with formaldehyde vapour, chrome alum, &c. Further decoration similar to the above may be superimposed, or brush work may be applied. The design formed bv the composite sheet may be arranged between sheets of glass, celluloid, or other either rigid or flexible material, or a rigid support, and a f1exib1e cover of celluloid, ce11u1ose acetate, ge1atine, &c. may be provided. Lining to simu1ate the leads of painted glass windows or panels may be app1ied by means of a b1ack, white, gold, si1ver, co1oured, or other opaque material, or may be printed on the background or cover glass. Where pieces of ge1atine are employed to form the design, these may be affixed to a base by moistening the surface of the gelatine. In the case of other material, an adhesive or a solution having a slight solvent action may be used.