baber/WOPTO huggingface dataset:
Patent GB-1317706-A (GB)
Title: Rotary actuator
IPC: F16K31/12
Filed: 1972-02-11
Abstract: 1317706 Semi-rotary actuators GREER HYDRAULICS Inc 11 Feb 1972 [3 March 1971] 6518/72 Heading F1F A semi-rotary actuator, e.g. for a valve, comprises a cylindrical casing 11 with a fixed vane 36, a shaft 29 carrying a vane 32 and rotatable in the casing, and deformable bladders 41, 42, e.g. of natural or synthetic rubber, located in the chambers c, c' defined by the vanes, fluid, e.g. oil, being supplied to and discharged from the bladders through fittings 43, 44 to rotate the shaft in either direction. Rotation of the shaft is limited by engagement of a pin 45 fixed to shaft 29 with either end of an abutment 47 on casing end plate 13. The casing end plates each have mounting flanges 23. In Figs. 5 and 6 (not shown), the bladders have rigid portions (51), (52), engaging the vanes.
Patent GB-586315-A (GB)
Title: Improvements in or relating to secret radio communication
IPC: H04K1/02
Filed: 1944-04-07
Abstract: 586,315. Wireless signalling. SPERRY GYROSCOPE CO., Inc. April 7, 1944, No. 6579. Convention date, April 10, 1943. [Class 40 (v)] Secrecy in frequency-modulation radio communication is effected by mixing the signal with a selected band of audio-frequencies constituting a masking noise. The noise is also sent over an independent channel and is used at the receiver to frequency-modulate the local oscillators, and to remove the noise from the mixed received signal. The selected band may be altered at intervals. As shown, the desired signal from the microphone 14 frequency modulates a carrier generator 13 with a narrow deviation, while noise from a source 16 is fed through a selected one of the filters 24 . . . 27 to modulate a generator 18 of different frequency with a wide deviation. The two carriers are mixed at 19 and a derived wave of a frequency equal to the sum of the frequencies of the two generators 13, 18, together with its side-bands, is selected by a high-pass filter 19a and radiated from the aerial 15. The noise is also amplified at 17 and transmitted from an auxiliary aerial 23 as amplitude or frequency modulation of a carrier generated at 21. The noise may be fed directly to the filters by a lead 51, or may be detected by a receiver 22 connected to the transmitter 21. At the receiving station, the noise is picked up by an auxiliary aerial 40 and receiver 39 and passes through a filter 41 and gain control device 42' to frequency modulate a generator 42 of the same frequency as the generator 18 at the transmitter. The radiation from the aerial 15 is picked up by the main aerial 36 and is combined in a mixer 43 with the F.M. wave from 42. The lower resultant frequency with its side-bands is selected by a low-pass filter 43a and is passed to a F.M. receiver 35 tuned to the frequency of the source 13 and feeding the phones with the desired signal from the microphone 14 free of the masking noise. The operative filters or combination thereof may be selected and changed by synchronous mechanism at the respective stations, e.g. by chronometers 46, 48. A further noise source 34 may be arranged to feed its output into the aerial 15. In a simplified arrangement (Fig. 2, not shown), the signal from the microphone 14 and the noise from the source 16 are both fed to the same F.M. transmitter, and the mixer 19 is omitted.
Patent GB-608978-A (GB)
Title: A rotor carrying a number of circumferential blade rows
IPC: F01D5/06
Filed: 1946-03-04
Abstract: 608,978. Rotors. ARMSTRONG SIDDELEY MOTORS, Ltd., CLARK, T., and ATKINS, J. H. C. March 4, 1946, No. 6610. [Class 110 (iii)] A rotor, which may be that of a, compressor forming part of an internal-combustion turbine plant, comprises a drum on which are mounted with an interference fit pairs of frusto-conical or like discs (each pair carrying a row of blades at the outer periphery) which are concave to one another, all the discs having intermeshing driving dogs, and at least one disc having driving dogs which intermesh with driving dogs fast with the drum. The intermeshing dogs 19, 20 are carried by the hubs 16 of the discs 12a, 12b. The dogs 19 of an end disc intermesh with dogs 21 on a disc 22 which is attached to the drum 11. A further disc 17 completes the endwise location of the discs. The disc peripheries are spaced from one another to receive the blades 13. Preferably, the discs are of high-tensile steel and the drum is of a steel having a higher coefficient of thermal expansion than the discs. Specification 27,088/03, [Class 110], is referred to.
Patent GB-139805-A (GB)
Title: Improvements in devices for filing letters, documents and the like
IPC: B42F13/02
Filed: 1920-03-04
Abstract: 139,805. Kirchner, W., and Schumacher Ges., G. & S. July 30, 1918, [Convention date]. Addition to 139,790. Cord and like files; post files. - The flexible filing-members described in the parent Specification are formed of metal spirals c fitted to the portion b of the cover a or to the cover itself by means of small plates e engaging the end turn of the spiral. The upper portion of the spirals c<1> ends in a button i. A pin k on one end of the filing-members just fits into the open turns of the other member, and is such that when fitted the spiral must be opened out before the pin can be uncoupled endways. The retaining-bar f has holes g for the filing-members and also holes m communicating with the former holes by slots l. The buttons i can pass through holes m but not holes g. The flexible filing-members are secured to the retaining bar by slides h travelling in beaded edges.
Patent GB-1006815-A (GB)
Title: Improvements in or relating to processes for the removal of ammonia from gases containing it
IPC: C10K1/08
Filed: 1964-02-18
Abstract: Ammonia is removed from gases containing it together with acrylonitrile, obtained from the vapour phase oxidation of propylene, by quenching the gases, at a temperature above their dew point, with an aqueous solution at at least 70 DEG  C. and containing (NH4)2SO4 and an excess of H2SO4 above that necessary for neutralization of the ammonia.  At least a portion of the resulting spent solution is cooled to precipitate ammonium sulphate crystals and the molten liquor, together with fish H2SO4 returned to the quenching stage. The concentration of H2SO4 in the spent solution may be 0.5 to 5%.  A portion of the spent liquor may be recycled to the quenching stage without crystallization of (NH4)2SO4.
Patent GB-738152-A (GB)
Title: Improvements in or relating to a process for stabilizing catalytically cracked hydrocarbon distillates
IPC: C10G19/02
Filed: 1951-03-20
Abstract: Heating oil distillates boiling within the range from about 400 DEG to 700 DEG  F., derived from the catalytic cracking of petroleum gas oils boiling above about 400 DEG  F., and containing mercaptans, olefins and diolefins, the mercaptans being predominantly aromatic, are desulphurized by intimately contacting them with an aqueous alkali metal hydroxide solution in such manner as to extract mercaptans therefrom.  The caustic alkali treatment is the first refining treatment applied to the distillate after its formation by distillation, and from its formation till the completion of the desulphurization, the distillate is rigorously excluded from contact with oxygen, no oxidation being permitted during the caustic alkali treatment.  Thus the caustic alkali treatment may be effected with caustic soda solution which has been completely freed of oxygen, for example by purging with inert gases such as light hydrocarbons or oxygen-free nitrogen.  The caustic alkali treatment may be followed by water-washing. Apparatus is described in which the gas oil is cracked, the cracking products are distilled to obtain a heating oil fraction and this fraction is washed with aqueous caustic soda solution before emerging into the atmosphere.
Patent GB-852156-A (GB)
Title: Improvements in or relating to the construction of roofs
IPC: E04D3/32
Filed: 1956-03-02
Abstract: 852,156. Roofing tiles; roofs. BURGESS, D. C. May 7, 1957 [March 2, 1956; April 6, 1956], Nos. 6717/56 and 10644/56. Classes 20(4) and 87(1) A roofing tile having three or more sides is bounded on each side by a trough-section margin. The half-round trough-sections 3a on certain sides are of smaller radius than those 3b on the remaining sides so that a number of tiles can be assembled in overlapping relationship with their upper surfaces coplanar, as in Fig. 3. The tile may be rectangular, square, diamondshaped, hexagonal or triangular and may have curved sides. In a barrel vault roof, Figs. 5-7 (not shown), square tiles curved about a diagonal and triangular tiles also of curved crosssection are used. In Fig. 9, the tile consists of asbestos-cement 14 reinforced by a sheet 15 of expanded metal which projects beyond the sides of the tile to form the trough-section margins 13. Alternatively a sheet metal tile may have expanded metal troughs welded to its edges. The surface of the tile may be formed with channels extending diagonally or bisecting opposite sides. The recessed underface of the tile may have a filling of slag wool, glass wool, asbestos or cork backed with a perforated sheet of hardboard or plasterboard. To form a roof the tiles are assembled in overlapping relationship, Fig. 3, reinforcing rods 8 are laid in the troughs with spacers 9 at intervals, and concrete 10 is poured in. The expanded metal margins may be spot-welded together before the concrete is applied. The roof is covered with a sheet of heat-insulating material and a layer of asphalt.
Patent GB-1149371-A (GB)
Title: Improvements in or relating to vehicle brake systems
Inventor: DUNLOP PAUL HARRY
IPC: B60T8/32
Filed: 1965-02-17
Abstract: 1,149,371. Anti-skid braking system, indicating devices, valves. P. H. DUNLOP. 17 May, 1966 [17 Feb., 1965], No. 6737/65. Headings F2E, F2F and F2V. A force transmitting arrangement, in a vehicle brake system, comprises two stages, the first stage, " A ", " B " being adapted to receive an input force and transmit it to the second stage for the duration of the application of that force, the second stage " C " being responsive to an applied reverse force to nullify the output force. The first stage includes a member 7 of high elasticity connected to a member 8, in the second stage, of low elasticity, so that the input force experiences substantially the same reaction in the presence or absence of the reverse force. As applied to an anti-skid braking system activation of a driver's lever or pedal moves piston 1 in the direction shown to raise the piston 10 through the medium of spring 7 and apply the brake lever 13. Pressure generated in cylinder 4 by the movement of piston 1 is transmitted through line 14 to a valve V (Fig. 2, not shown) to pressurize line 26. When valve 33 is lowered by an inertia device, on excessive retardation of the braked wheel, this pressure acts, via line 15, above piston 10 to release the brake. The Valve V (Fig. 2) comprises a spool 19 biased by a spring 20 and a concentric sleeve 27 biased by a spring 29 of the same rate as spring 20. In the absence of pressure in line 14 fluid supplied at 30 from a pump P passes through pools 22, 23 in the spool to a conduit 24 discharging to a reservoir. When pressure is applied to line 14 the spool moves rightwards to reduce port 30, pressure then building up at port 30 and line 26 to move the sleeve 27 rightwards. The ratio of the pressures in line 14 and line 26 depends substantially on the ratio between the effective areas of spool head 18 and the annular end face of the sleeve 27. The inertia device (Fig. 3) comprises two coaxial conical members 40, 41, the latter engaging the disc 42 of a disc brake and driving the member 40 through a ball-and-ramp device 47-49. When the retardation of the wheel, and thus the driven member 41, exceeds a predetermined value the latter is raised by the device 47-49 against the action of spring 46 to operate a microswitch 50 to operate the valve 33. Indicating devices.-The electrical circuit of the valve solenoid and microswitch may include a light or buzzer to warn the driver that the anti-skid device is operating
Patent GB-453139-A (GB)
Title: The manufacture of products of the nature of petroleum jelly
IPC: C08L91/06
Filed: 1935-03-04
Abstract: A petroleum-jelly-like mixture useful as a lubricant or as insulating-material, e.g. in electric transformers or condensers, is obtained by mixing a wax-like with an oily-to-resin-like chlorinated polynuclear hydrocarbon, and adding about 1 per cent of a mineral oil and/or a wax such as ozokerite, montan, carnauba, or synthetic wax. For example, 49 lbs. of a wax-like chlorinated naphthalene of 50--60 per cent chlorine content is heated with 42 lbs. of a chlorinated diphenyl of 59 per cent chlorine content, 0,5 lb. of paraffin oil, and 0,5 lb. of ozokerite. Specification 413,519, [Group II], is referred to.
Patent GB-860997-A (GB)
Title: Injection syringe, more especially for veterinary use
Inventor: BRUCHHAUS PAUL
IPC: A61M5/24
Filed: 1958-03-03
Abstract: 860,997. Surgical syringes. HAUPTNER, H., and HAUPTNER, K., [trading as HAUPTNER, H. [Firm of]]. March 3, 1958, No. 6815/58. Class 81 (2). A syringe comprises two arms, one housing a liquid being formed as a handgrip to be embraced by the hand in use and carrying a cannula and the other arm being pivoted on the first and arranged so that movement thereof relative to the first arm is translated into projection movement of a piston for discharging the liquid. A sleeve 9 for receiving an ampoule is pivotally mounted at its forward end in a housing 1 forming one arm of the syringe. The housing 1 has a side aperture 8 through which the sleeve 9 is swung to receive the ampoule. A cannula 13 is secured by a nut 14 to the sleeve 9. A piston-rod 15 having indentations 16 projects into the housing 1 to abut against a rubber piston of the ampoule. An actuating lever 5 forming the second arm is pivoted on a trunnion screw 6 at the forward end of the housing 1. The lever 5 includes a fork 26 to which is pivoted a shift rod 21 disposed parallel to the piston-rod 15. A pawl 19, attached to the rear of the shift rod 21, engages the indentations 16 on the piston-rod 15. When the actuating lever 5 is pivoted towards the housing 7, the shift rod 21 and pawl 19 are moved forwardly against a spring 22, thus moving the piston-rod 15 forwardly by one indentation and ejecting a corresponding quantity of fluid from the ampoule. On release of the lever 5, the shift rod 21 and pawl 19 are urged rearwardly by the spring 22, the piston-rod being held against rearward movement, e.g. by a spring- loaded locking ball. The second arm may be pivoted near the rear of the housing 1 and extend forwardly. The piston-rod alternatively may be moved forwardly by a frictional clamping connection with the shift rod.
Patent GB-573336-A (GB)
Title: Improvements in or relating to welding rods
IPC: B23K35/40
Filed: 1942-05-20
Abstract: 573,336. Making coherent masses from powders ; fluxes. CLARKE, E. J., and MUREX WELDING PROCESSES, Ltd. May 20, 1942, No. 6837. [Classes 82 (i) and 82 (ii)] [Also in Group XXII] A welding rod is made by loading a metal powder free from heavy metal carbides into a metal sheath and subjecting them under non- oxidising conditions to a temperature such as to sinter the powder to form an electrically conductive core. The powder may also contain a binder such as sodium silicate, paraffin wax or resin, or fluxes and/or deoxidising agents. The powder may be moulded into a preformed metal tube or led into a partiallyformed sheath, the completion of the sheath and pressing of the powder being then effected simultaneously. Sintering may be effected before closing the sheath. In a continuous process, a metal strip is converted by rolls into U-form, metal, &c. powder extruded therein, the filled strip subjected to a sintering temperature of the order of 600-1300‹ C., the product then passed through the strip closing rolls and then through hot finishing rolls and is finally coiled on a drum. Sintering may be effected in a reducing atmosphere. A mild steel sheath may contain a sintered core of iron powder with or without nickel, chromium or molybdenum. A copper sheath may contain a sintered core of copper and deoxidiser, and a nickel sheath, a sintered core of chromium, molybdenum or tungsten, or a mixture of two or more thereof. Flux may consist of powdered rutile, fluorspar, felspar, magnesite, and deoxidiser may consist of ferro-silicon which may also act as a flux. The flux may be applied as a coating to the sheath, instead of or in addition to using a flux in the core. A core for a mild steel sheath may consist of 70 parts of iron, 12 parts of ferro-manganese, 4 parts of felspar, 8 parts of rutile and 6 parts of china clay, or 30 parts of chromium, 2 parts of molybdenum, 15 parts of tungsten, 45 parts of cobalt, 5 parts of iron and 3 parts of carbon mixed in either case with sodium silicate solution. A core of a nickel sheath may consist of 30 parts of - chromium, 2 parts of molybdenum, 15 parts of tungsten, 35 parts of cobalt, 15 parts of iron and 3 parts of carbon, together with sodium silicate solution.
Patent GB-1030151-A (GB)
Title: Planar circuit assembly
Inventor: SMITH ERNEST EDWIN
IPC: H01L25/11
Filed: 1962-02-22
Abstract: 1,030,151. Circuit assemblies. STANDARD TELEPHONES & CABLES Ltd. Feb. 15, 1963 [Feb. 22, 1962], No. 6919/62. Heading H1R. An assembly of planar circuit units comprises a pair of insulating plates on one face of each of which metal is deposited in a pattern forming wiring or a circuit element, the plates being held together and spaced by a layer of insulating material. One or more discrete components electrically connected to the deposited metal may be held in position between the plates. As shown, Fig. 1, two parallel glass plates 1, having deposited circuitry 2 and leads 3 on facing surfaces, are bonded together by a thin layer 5, Fig. 2, of cured thermosetting epoxy resin. Transistors 4, or similar components such as diodes, inductors and capacitors, have their leads soldered or bonded by thermo-compression to circuitry 2, and are embedded in the resin layer 5. Fig. 3 (not shown) depicts a jig 6 comprising similar top and bottom members 7, 9 and a spacer member 8. Top member 7 comprises a well 10 to accommodate a glass plate and grooves 13 to receive protruding leads 3. Spacer member 8 has a cut-out 12 and members 7, 8 have holes 14, 15 which engage pegs on member 9. The jig is clamped from the outside and epoxy resin is poured into the jig and heat-cured. A thin layer of low melting point glass may be pressed on to circuitry 2 before encapsulation. More than two insulating plates may be similarly assembled, in which case intermediate plates may have deposited circuitry on both sides.
Patent GB-910962-A (GB)
Title: Frequency control systems
IPC: H03K3/49
Filed: 1959-02-27
Abstract: 910,962. Frequency shift signalling; transistor oscillator circuits. RADIO CORPORATION OF AMERICA. Feb. 27, 1959 [Feb. 28, 1958], No. 6970/59. Classes 40 (5) and 40 (6). A square-wave transistor inductive relaxation oscillator comprises inductively coupled windings 38, 34 in the collector circuits of the transistors 22, 20, each in turn acting as a primary and a secondary winding, coupled to the transistor bases through R-C networks 30, 32 and 24, 26, the windings 38, 34 being wound through a control aperture 46 in a transfluxor magnetic core 14 having a setting winding 48 to which pulses are applied so that the core peak magnetization and coupling of the windings 38, 34, and hence frequency generated may be altered. Each transistor is alternately conductive and cut off, for a period determined by the time the voltage induced in the other winding exceeds the battery operating voltage. The frequency varies discontinuously in accordance with a staircase characteristic as pulse amplitude or pulse peak ampere-turns is varied, and alters very little if the pulse train then ceases. The frequency varies from a high value to a lower minimum value then rises again as peak ampereturns is further increased. Moreover, bi-polar pulses or sinusoidal A.C. may be used, due to rectifying action of the transfluxor, but in this case no rise in frequency beyond the minimum arises with increase of peak ampere-turns. A blocking signal applied e.g. at loop 51 blocks the transfluxor, i.e. saturates it in a sense opposite to the setting current, prior to each setting signal. Different control apertures at different radial distances from the setting aperture 44 may be used for controlling different oscillators, and a plurality of setting windings 48 may be used connected to different setting inputs. One or other of windings 38, 34 may alternatively be coupled between the control aperture 46 and setting aperture 44. In a modification, an amplitude varying circuit is inserted between the setting source and setting winding 48 so that the same frequency is always generated even though the setting source frequency varies. Alternatively, the amplitude varying circuit may be replaced by a rectifier circuit so that the generated frequency varies in proportion to a constant amplitude setting frequency.
Patent GB-197120-A (GB)
Title: Improvements in or relating to disengageable gearing for power generating units
IPC: B61C15/02
Filed: 1922-03-09
Abstract: 197,120. McGrew, J. A., and Loree, J. F. March 9, 1922. Operating toothed wheels.-In combination of motors with driving-gear for transmitting their drive, shown applied to a booster for attachment to locomotives, railway coaches &c., in which steam or compressed air cylinders drive the axles through disengageable toothed gearing, the steam, air, &c. moves a valve 24, blocking the pipe 20 leading to the cylinders, against the action of a spring 25 to move a gear-wheel 13 carried on a frame 14 pivoted on the shaft 10 into mesh with a wheel 12 on the driven axle 6. The wheel 13 gears constantly with a wheel 11 on the shaft 12 driven by cranks and connecting-rods from the cylinders. The gear teeth are thus thrown into mesh to transmit the drive immediately the motor has started, so avoiding shock. Grooves 22 with flared ends are provided in the valve socket at each side of the valve. Specifications 177,134, 194,928, and 198,455, [Class 79 (v), Motor vehicles, Steering &c.], are referred to.
Patent GB-1037691-A (GB)
Title: Packaging machine
IPC: B65B11/10
Filed: 1963-02-21
Abstract: 1,037,691. Wrapping-machines; conveyers. MEAD CORPORATION. Feb. 21, 1963 [Feb. 28, 1962], No. 7048/63. Headings B8A and B8C. A wrapping - machine, particularly for folding a blank about a group of cans to form an openended package, includes intermittent feeding means for the partially wrapped package comprising a reciprocating carriage with feeding fingers which swing angularly into and out of the package path. Blanks are fed from a stack 33 by suction means 34 and deposited on a support 44 above a group of cans. The fingers 79, 80 on parallel reciprocating rods 47 (48), see also Fig. 2 (not shown), engage respectively the cans and blank A and advance them beneath folding blades 91 (92), see also' Fig. 6 (not shown), which arc downwards to fold the blank to inverted U-form about the cans. An arm 96, Fig. 6, holds down the blank during folding. The fingers swing outwards for the return of the carriages and move inwards again behind the next blank and batch of cans. Also mounted on the carriages are elements 81-83 which move the packages through further stages where pivoted folders 105, 113 swing in transverse to the package path to overlap the blank beneath the cans, Fig. 3 (not shown) and means (not described) which may be as in Specification 1,037,692 engage tongue and slot connections. Each element 81-83 carries a member 86-88 for spacing the packages, the spacing being adjustable for various package sizes. A leading element 89 is provided on each carriage to arrest the foremost package at the end of carriage movement. The blanks may be as described in Specification 790,815.