baber/WOPTO huggingface dataset:
Patent GB-764001-A (GB)
Title: Method of and means for converting a self-opening die-head for use in tapping and reaming
IPC: B23G5/14
Filed: 1954-05-28
Abstract: 764,001. Reamers; taps. HOLT, A. J., and BROCK, T. I. March 7, 1955 [May 28, 1954], No. 15809/54. Class 83 (3). An attachment for converting a self-openfug die-head 11 into a tapping or reaming head, comprises a tubular extension 13 carrying radially-movable tapping or reaming cutters 30 and secured by its flange 12 to the die-head, sliding members 15 replacing the die-head chasers and coacting with the scroll plate (not shown) or the equivalent of the die-head, and a rod 20 slidable in the extension 13 for engaging the inner, sloping ends 34 of the cutters 30 and the inner ends of the members 15. Two, three, four or six chasers 30 may be mounted in a detachable head 27 of the extension 13 and influenced to engage the end 31 of the rod 20 by pieces of rubber trapped in co-operating slots 40, Fig. 2, of semi-circular section, in the head and chasers. The chasers 30 are expanded to the cutting position illustrated by displacement of the rod 20 caused by rotating the scroll-cam to move the slide 15, through grooves 17, against the rounded end 19 of the rod which is pressed against cam surfaces 21 or 23 on the slides by a spring 24. A pin 25 engaging a recess 26 in the rod 20 prevents the spring 24 from ejecting the rod. In the retracted position, the ridged end 31 of the rod engages slots 32 in the chasers. Axial extensions may be formed on the chasers for tapping blind holes, and the end-plate 28 of the head 27 may be reduced in diameter to clear the extensions. The flange 12 may be secured in place of the end-plate of the die-head.
Patent GB-792457-A (GB)
Title: Improvements in or relating to radio frequency transformers
IPC: H01F21/08
Filed: 1956-05-23
Abstract: 792,457. Transformers. NATIONAL RESEARCH COUNCIL. May 23, 1956 [May 25, 1955], No. 15882/56. Class 38 (2). [Also in Groups XXXVI and XL (c)] A radio frequency transformer comprises two separated coils 1, 2 adjacent to a strip of easilysaturable magnetic material 14, and a core 15 of magnetic material difficult to saturate in contact with said strip and bearing a control winding 19, direct current through which varies the saturation of the strip 14 and hence the coupling between coils 1 and 2. Trimmer condensers 3, 4 may be associated with the coils 1, 2 and the device may, be used as an I.F. transformer in a superheterodyne circuit. Embodiments are described in which two strips 14 are provided which may be controlled by a common winding 19 or by individual windings. In Fig. 8, two cores are each in contact with two strips 14a, 14b, and separated by a magnetic shield.
Patent GB-203400-A (GB)
Title: Improvements in or relating to oil burners of the blue flame type
IPC: F23D3/00
Filed: 1922-06-08
Abstract: 203,400. Blackford, A. J. June 8,1922. Wick burners, blue flame, and flame regulating in.-In blue flame oil burners comprising an oil trough and a combustion section consisting essentially of concentric perforated cylinders between which the vapour passes from the trough, the regulation of the flame is effected by moving the combustion section relatively to the trough. In the construction illustrated the trough 4 contains a wick or similar lighting element 6 and is connected through a pipe 8, a hollow casting 7, and a pipe 3 to a maintained oil-level supply. The head 7 is fitted with a valve seat 10 and needle valve 11. The valve 11 is turned until an index pointer 18 on its handwheel 16 is opposite one of the indications " Out," "Start" or " Full " on a fixed dial 17. The combustion section consists of vertical concentric perforated cylinders 19, 20 having contracted lower ends 23, 24, a perforated upper diaphragm 27, and perforated lower diaphragms 26, 29. The combustion section is rendered vertically adjustable in reference to the trough 4 for flame-regulating purposes by supporting it on a trough-shaped casing 4<1> formed with L-shaped shoulders 28, 25. The casing 4' is raised or lowered by means of a hand-operated shaft 32 carrying a pinion 33 engaging rack teeth 34 on a rod 30 sliding in a socket 31 on the head 7. A depending tube 36 on the casing 4<1> surrounds the pipe 8 and steadies the casing in its movement. The bottom of the casing 4<1> is perforated to allow an upward draught to carry off vapour condensing on the outside of the trough 4. The combustion section is lifted to enable the member 6 to be ignited by means of a vertically movable rod 39 which may be provided with lateral bend 41 carrying a disc 42 which normally rests on the pipe 3. The lower end of the rod is bent and carries a handle 43 that may be rested on the pipe 3 to support the combustion section in the elevated position. Instead of providing the casing 4' the walls of the trough 4 may be extensible vertically. In a modified form of burner the trough 4 may be movable vertically in respect to the combustion section.
Patent GB-575091-A (GB)
Title: Improvements in or relating to calculating mechanism
IPC: G06G3/06
Filed: 1939-05-30
Abstract: 575,091. Calculating - apparatus. VICKERS - ARVISTRONGS, Ltd., and WATSON, J. P. May 30, 1939, No. 15952. [Class 106 (i)] A mechanism for ascertaining the products of trigonometrical functions of angular functions and the algebraic sum of such products comprises a primary radius arm that is angularly displaceable according to a first angular function and a device carried at the free end of the arm which is angularly displaceable about its centre and acts as a secondary radius arm, the primary and secondary radius arms being movable as a whole about the centre of the primary arm according to the second angular function. The mechanism as shown in Figs. 1 and 2, for evaluating the expression Sin C=Sin A Cos B, where A and B are known, comprises a primary arm 22 on a shaft'21 to which is secured a gear 20 connected through gearing 18, 19 to the bevel gear 14 of a differential 9. The arm 22 carries a pivot 23 for a gear 24 that meshes with the internal teeth of a gear wheel 7 with a diameter twice that of the gear 24. The wheel 7 rotates on the bearing 8 and has external teeth engaging the bevel gear 3 of the differential 9. The gear 3 is secured to a hollow shaft 1 through which passes the shaft .13 carrying the planet gears 11. Attached to the gear 24 is'a bracket 26 with a pivot pin 27 carrying a member 28 engaging a slotted slide 29 on a guide bar 30. The slide 29 is formed with a rack 31 engaging a pinion on a result shaft 33. The pivot centres 23, 27 constitute the secondary radius arm. The pivot 27 may have several initial setting positions and a second slide at right angles to slide 29 may be provided. The application of this mechanism to gun fire control apparatus on board ship is shown in Fig. 9. The pitch and roll angles P, R, or functions thereof for the gun are derived from the pitch and roll angles B, C of the ship and the training angle A of the gun which values are connected by the identities Two mechanisms 45, 58 with double slider cranks are.provided, the values B, C and A being entered through input shafts 34, 35 and 36 and differentials 37, 44 and 50, 57. The shafts 34, 35 operate through cam follower mechanism to impart movements B1, C1 where B1 = arc Sin Tan B, and C1=arc Sin Tan C. The sliders 48, 49, 61, 62 are connected to drive shafts 67, 68, 69 and 70 with differentials 71, 73 connected to output shafts 72, 74. The values are obtained by initially setting the pivot 27 over the axis of the primary radial arm.
Patent GB-571982-A (GB)
Title: Improved means for removing ashes and the like from the ashpits of self cleaning furnaces
IPC: F23J1/02
Filed: 1943-09-29
Abstract: 571,982. Furnace ashpits. BENNIS COMBUSTION, Ltd., and BENNIS, A. W. Sept. 29, 1943, No. 15961. [Class 51 (i)] [Also in Group XXX] Ashes &c. are removed from the ashpit of a selfcleaning furnace by a reciprocating plate. The ashes fall over the end of the grate G on to inclined plates H which direct them on to the reciprocating plate C, Fig. 3. This plate may be supported by a plate E which forms the bottom of a trough F. A reciprocating movement is imparted to the plate C by a driving shaft O through a crank L, link M and arms N, J on a shaft K. A hinged plate A allows the ashes to pass on the movement of the plate to the right, but prevents their return when the motion is reversed.
Patent GB-689588-A (GB)
Title: Travelling-wave tube with an output cavity resonator and with a drift space
IPC: B44F1/08
Filed: 1950-06-27
Abstract: 689,588. Travelling-wave tubes. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. June 27, 1950 [July 12, 1949], No. 16024/50. Class 39(i). A travelling-wave tube amplifier comprises an input retardation line in the form of a helix 4, in which the incoming wave is amplified by interaction with the electron beam while the latter is modulated in velocity and in density, an output cavity resonator 8 excited by the density modulated electron beam, and a drift space between the line and the resonator in which there is no interaction between the beam and the wave. The line is terminated in an attenuation element 6 of such form as to dissipate the amplified incoming wave without giving rise to reflections. The drift space l is preferably of a length equal to a coefficient comprised between 1 and 1.5, divided by the value of the real part of the wave propagation constant of the line. The bunching of the electrons in the drift space may be enhanced by inserting a detuned cavity resonator coupled neither with a generator nor with a load circuit in the drift space. The bunching may be still further increased by so dimensioning the retardation line that the coupling between the wave and the beam is of the same order of magnitude for the fundamental frequency as for the second harmonic. The attenuation element may be replaced by an output circuit so as to utilize the amplified input wave. The final collector electrode, or the collector electrode and the output resonator are preferably at low potentials with respect to the line so as to minimise energy loss due to dissipation of heat at the collector, but sufficient to ensure collection of all the electrons. The retardation line may be a helix as shown, or a multi-vane or perforated-disc waveguide for example. Specification 660,792 is referred to.
Patent GB-904328-A (GB)
Title: Apparatus for continuous separation of liquid from pulp and similar wet masses
IPC: C13B15/00
Filed: 1960-05-06
Abstract: 904,328. Screw extrusion presses. STORD MARIN INDUSTRI A.S. May 6, 1960 [March 17, 1960], No. 16041/60. Class 46. In a screw extrusion press with two intermeshing screws driven in opposite directions the ratio of the thread volume at the inlet to the thread volume at the outlet is between about 5 to 1 and 10 to 1. Preferably the housing consists of two parallel near-cylindrical parts 11, 12 Fig. 2, having drainage holes which are larger at the feed end of the housing than at the discharge end. The screw members may be hollow, and a heating fluid may be conducted into them by pipes 39, Fig. 1, with associated control valve 40.
Patent GB-685105-A (GB)
Title: Improvements in vehicle shock-absorbers
IPC: F16F1/26
Filed: 1951-07-10
Abstract: 685,105. Rotary spring-type shock-absorbers. ADAMSON, S. B. July 23, 1951 [July 10, 1951], No. 16297/51. Addition to 651,489. Class 108 (iii). The leaf-spring abutments of the parent Specification are provided by steel bars A which are cast in position in the aluminim or, aluminium alloy casing B of the shock-absorber. When the cross-section of each bar is triangular, as shown, one side a is disposed at right angles to the axis of spring. The bars may alternatively be of square, circular or tubular crosssection. A circular bar may be formed with diametrically opposed projections in order to prevent it turning. Specification 651,511 is referred to.
Patent GB-921015-A (GB)
Title: Improved device for expanding resilient or rubber rings
IPC: A61D1/00
Filed: 1959-05-12
Abstract: 921,015. Expanding pliers. ELASTRATOR CO. Ltd. May 12, 1959 [May 12, 1968; Feb. 6, 1959], No. 16299/59. Class 61. A device for expanding a resilient ring comprises two pivoted jaw members 1 each having a fixed stud 3 at one end and an associated movable stud 4, the four studs being arranged so that when brought together (Fig. 1) they may receive a resilient ring, the outer portions of the studs which receive the ring being grooved or waisted (Fig. 7). The studs 4 are mounted on carriers 12 which are slid within the jaw members 1 by links 11 when the jaws are opened. Reference has been directed by the Comptroller to Specificntion 605,511.
Patent GB-514770-A (GB)
Title: Acid anthraquinone dyestuffs
IPC: C09B1/34
Filed: 1938-05-04
Abstract: 514,770. Dyes. COFFEY, S., LODGE, F., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. May 4, 1938, No. 16318/37. [Class 2 (iii)] Dyes are made by brominating 1.4-di-pbutylanilinoanthraquinone, in which one or both anilino groups may carry a methyl substituent and then sulphonating. The products dye wool blue or violet shades. In examples, 1.4-bis- (p-n-butylanilino) anthraquinone and 1.4-bis-(2<1>-methyl-4<1>-n-butylanilino) anthraquinone are brominated in chloroform, followed by suplhonation of the products. Specifications 446,819, 449,010 and 494,802 are referred to.
Patent GB-1430960-A (GB)
Title: Thermoplastic moulding compositions
IPC: C08L33/02
Filed: 1973-12-06
Abstract: 1430960 Polycarbonate/(styrene-acrylonitrileacrylate-methacrylamide methylol ether) graft copolymer composition BAYER AG 6 Dec 1973 [6 Dec 1972 25 Oct 1973] 16343/75 Divided out of 1430959 Headings C3G and C3R A thermoplastic moulding composition comprises by wt.: (a) 95-5% dihydric phenol polycarbonate, and (b) 5-95% graft styrene and acrylonitrile copolymer on a copolymer of an acrylic acid ester and a methacrylamide methylol ether. (a) may be a mixture of a halogen-free and a halogen-containing polycarbonate, as referred to in the parent Specification 1,430,959.
Patent GB-630680-A (GB)
Title: Improvements in hydraulic transmission systems and transmitters for use therein
IPC: B60T11/228
Filed: 1946-05-29
Abstract: 630,680. Transmitter telemotors. STERLING INDUSTRIES, Ltd., and THOMAS, P. E. May 29, 1946, No. 16361. [Class 69 (ii)] A hydraulic transmitter comprises a liquid reservoir 18 having a transmission cylinder 2 having an outlet 14 and containing a hollow piston 1 actuated by a rocker arm contacting rollers 7 on a shaft 5 connected to the piston 1. Slidably mounted on the piston 1 is a displacer element 10 connected by a spring 12 to the shaft 5. The hollow piston and displacer 10 form a liquid chamber 11. A non-return valve 15 is fitted in the end of the displacer 10 and a similar valve 4 in the piston 1 which, on the outward stroke of the piston, is opened by means of a spring-pressed plate 4<SP>2</SP>. Initially the displacer 10 contacts the end of the cylinder 2 when the piston 1 is operated and liquid is drawn into the chamber 11 through the valve 15. Continued operation charges the system through the connection 14 and the chamber 11 is charged with liquid under pressure and the displacer and piston operated as a unit. A bleed line may be connected from a distant point in the system to a point adjacent the reservoir 18.
Patent GB-273487-A (GB)
Title: Improvements in packing rings for pistons and stuffing-boxes
IPC: F16J9/06
Filed: 1926-07-01
Abstract: 273,487. Talbot, E. July 1, 1926. Pistons; packing. - In piston packing of the type in which a split packing-ring 2 is pressed against the side of its groove by a split ring 4 of wave form the ring 4 makes contact with the cylinder wall at its outer periphery. The ring 4 may be arranged between two packing- rings, or several packing-rings and wave rings may be arranged in one groove. Oil may be drained by passages 8 at the bottom or side of the packing-ring groove.
Patent GB-558704-A (GB)
Title: Improvements in or relating to radio-phonograph combinations
IPC: H04B5/06
Filed: 1942-05-01
Abstract: 558,704. Gramophone pick-ups. PHILCO RADIO & TELEVISION CORPORATION. May 1, 1942, No. 16610/43. Convention date, June 13, 1941. Divided out of 558,680. [Class 40 (iv)] [Also in Group XL] A gramophone pick-up includes a resonant circuit tuned to a frequency within the intermediate frequency band of a superheterodyne receiver. The pick-up stylus is coupled to the resonant circuit to vary a constant thereof in response to the vibration of the stylus, and the resonant circuit is substituted for the oscillatory circuit of the local oscillator valve. In the receiver circuit shown a switch 30, 31 connects the oscillator grid and anode of the detector oscillator valve 23 to an oscillatory circuit 32, 36 for radio reception, or to the pickup resonant circuit 42, 45 for record reproduction. The pick-up may be constructed as described in Specification 558,680 with a shortcircuited turn or turns for varying the inductance of the coil 42 to produce frequency modulation, or it may comprise a solid vane vibrated by the stylus which varies the effective resistance of the coil, so modulating the amplitude of the oscillations. Alternatively, the capacity of the resonant circuit may be varied by the stylus. In the case where frequencymodulation is used the pick-up circuit is preferably tuned to a point 48 on a substantially straight portion of the frequency selectivity curve, Fig. 2, in which case the variations of the radio frequency output of the I.F. amplifier and the output voltage of the second detector will have a linear relation to the frequency variations of the pick-up circuit. The signals may be sufficiently strong to cause the A.V.C. voltage to block radio signals, so avoiding the use of switches to mute the input section. Specification 552,019, [Group XL], also is referred to.
Patent GB-594275-A (GB)
Title: Improvements in or relating to the guiding of artificial filaments
IPC: D01D5/00
Filed: 1945-06-29
Abstract: 594,275. Filament &c. guides for spinning- machines. TAYLOR, W. I. June 29, 1945, No. 16621. [Class 120 (ii)] A guide for freshly spun artificial filaments is traversed slowly in a direction substantially parallel to the guiding surface which is formed and arranged to be traversed without substantially affecting the path of the filaments, in order' to spread wear evenly over the surface. The guide is preferably of sheet metal with the guiding edge rounded and smoothed. Guides are described in connection with a lubricating roller 11 having a fabric sleeve 22 for applying lubricant and a roller 12 for feeding a filamentary yarn 4 forwards from an extrusion cabinet. The yarn 4 passes beneath a guide 10, Figs. 1 and 2, over the roller 11 and partially round the roller 12, then over a further guide 13 and back to the roller 12. Guides 10 and 13 have straight guiding edges and are connected by a yoke 40 carrying a cam follower 41 engaged with a groove in a cylindrical cam 16 to effect the slow traverse. As a further means of reducing wear on the guides they may be shifted longitudinally from time to time by manual adjustment.
Patent GB-711674-A (GB)
Title: Improvements relating to deadman's valve systems
IPC: B60T17/20
Filed: 1952-07-03
Abstract: 711,674. Fluid-pressure brakes. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd., and SIMMONS, A. W. June 5, 1953 [July 3, 1952], No. 16726/52. Class 103(1) In a deadman's valve system for fluid pressure systems for vehicles of the kind comprising a deadman's pilot valve 7 in communication with a deadman's application valve 5 so that the opening of the pilot valve causes the opening of the application valve to bring about an application of the brakes of the braking system and wherein the communication between the pilot valve and the application valve is blocked when the driver's brake valve isolating cock 1 is closed, the closing of the driver's brake valve isolating cock causes a temporary opening of the deadman's application valve to effect a brake application. When the brakes of the braking system are released, compressed air is supplied from the brake pipe 19 through a restricted passage 20 to the first chamber 16 of the deadman's application valve 5. and with the deadman's pilot valve 8 maintained closed by the driver, the arrangement is such that the combined downward force on the piston 15 produced by the spring 21 and the pressure of the air in the first chamber 16 exceeds the upward force produced by the pressure of air in the second chamber 17 so that the piston 15 is held in contact with the annular valve seat 13 and connection between the brake pipe 19 and the atmospheric port 14 is prevented. Should, however, the driver release his pressure on the deadman's pilot valve 7, this valve will be opened by the spring 11, as shown in the figure, to vent the first chamber 16 through passage 4, normal passage 2 of the isolating cock 1, which is in its open position, passage 6 and passageway 12 to atmosphere and the pressure of air in the second chamber 17 will cause the piston 15 to rise against the spring 21 thereby venting brake pipe 19 through passage 18 and the atmospheric port 14 causing the brakes to be applied. When the driver's brake valve isolating cock 1 is in its closed position, the normal passage 2 connects the passage 4 to a small enclosed chamber 9 (which is at atmospheric pressure) and isolates the passage 6 and the deadman's pilot valve 7 from the system so that should the driver close the isolating cock whilst the vehicle is in motion the deadman's application valve is connected to the small chamber 9 thus considerably reducing the pressure on top of the piston 15 in the first chamber 16 causing the application valve to operate and provide an emergency application of the brakes.
Patent GB-344733-A (GB)
Title: Main ferrules for connecting branch pipes
IPC: F16L41/00
Filed: 1930-05-30
Abstract: 344,733. Connecting branch pipes to mains. McANDREW, R., 4, Sir Thomas White's Road, Coventry. May 30, 1930, No. 16736. [Class 99 (i).] A branch pipe is connected to a main by a ferrule which comprises a nipple 2 and a body portion 11, the nipple being screw-threaded at one end 3 for attachment to the main and at the other end 7 for engagement with the said body portion which is provided with a lateral passage 12, to which the branch is secured, and is locked in any angular or axial position on the nipple by a nut 8 threaded on the end 7 thereof. The bore of the nipple is of venturi or stream-line shape 4, 15 and is formed with a screw-threaded part 5 to receive a sealing plug 6. The latter is normally housed in an extension 16 of the body and abuts against a washer 19 located in the said extension by a ring 21. A jointing washer 10 is also located in a recess 9 in the upper surface of the nut 8 to secure fluidtightness between the nipple and body. The body may be formed with more than one lateral branch passage.
Patent GB-938232-A (GB)
Title: Permanent information storage arrangements
IPC: G06K7/08
Filed: 1960-05-12
Abstract: 938,232. Capacitors. WESTERN ELECTRIC CO. Inc. May 12, 1960 [May 28, 1959 (3)], No. 16759/60. Class 37. [Also in Groups XIX and XXXVIII] An information look-up device comprises row and column conductors with capacitor means at the cross-points of said conductors, the capacitor means being changeable according to the information to be derived from the look-up device. A dielectric sheet, Fig. 2A, with holes corresponding to binary 0's or with plugs of high dielectric constant, Fig. 2B, corresponding to binary 1's is placed between row and column conductors 4, 5, Fig. 1, and located by screws 6 engaging holes 8. The apparatus operates in the manner of the circuit shown in Fig. 3. As each row conductor 5 is pulsed output pulses occur on the column conductors 4 capacitatively coupled to the energized row conductor. A rectangular array of capacitors, Fig. 4, has all its lower plates connected to column conductors 43 but only selected upper plates to row conductors 51 by connecting conductors 52, Fig. 6. Row conductors 81, Fig. 8, in the form of rods, carry dielectric cylinders 85 to form capacitative couplings with metal sheets 82. Earthed screening sheets 83 are provided.