baber/WOPTO huggingface dataset:
Patent GB-1521348-A (GB)
Title: Method and apparatus for generating digital dual frequency signals
IPC: H04M1/50
Filed: 1976-04-01
Abstract: 1521348 Signal generators ROLM CORP 1 April 1976 [23 July 1975] 13316/76 Heading G4H A multi-bit digital representation of an analogue signal having two frequency components, is generated by generating two multibit digital signals representative of the analogue signal and a fractional portion of a standard time interval respectively, multiplying them together to form a pair of multi-bit digital product signals each representative of the phase of a different one of the two frequency components relative to the standard time interval, converting each of these product signals to a multi-bit digital amplitude signal and adding these two amplitude signals together. As disclosed, the digital signal representative of the analogue signal is obtained by addressing a first ROM and has a part relating to each frequency. These parts are multiplied individually by the time signal which is obtained via a shift register from a clock-driven counter. The two product signals obtained are used in turn, in conjunction with gain factors obtained from the first ROM, to address a second ROM (sine table) to obtain amplitude representing signals which are added together as stated. The invention can be used in a PCM/TDM telephone system.
Patent GB-384900-A (GB)
Title: An improved terminal clamp for storage batteries having taper post terminals
IPC: H01R11/28
Filed: 1932-05-09
Abstract: 384,900. Two-part couplings. WILKINS, G. R., 907, Victoria Street, Hastings, New Zealand. May 9, 1932, No. 13323. [Class 38 (i).] A terminal clamp for a storage battery having tapering post terminals comprises a body portion 1 having an orifice 4 with a correspondingly tapered internal face 5, and a clamping piece 2, which is pivotally and detachably mounted on the body 1 by the engagement of lugs 9 on the clamping piece with bearings 10 on the body, the clamping piece being pressed into gripping engagement with the battery post by means of a set screw 3 passing through a projecting boss 7 on the body 1. Preferably the lower and inner part 12 of the clamping-piece and the tapering face 5 are serrated to furnish a better grip on the post, while a socket 13 into which a cable may be sweated, is formed integrally with and on one side of the body 1. To prevent accidental detachment and loss of the clamping piece the upper edges of the bearings 10 may be burred over to form a retaining means.
Patent GB-714889-A (GB)
Title: Improvements in or relating to electric plug-and-socket couplings
IPC: H01R13/40
Filed: 1952-05-27
Abstract: 714,889. Two-part couplings; binding- posts. WARD & GOLDSTONE, Ltd., and COUYOUMDJIAN, A. O. May 27, 1953, [May 27, 1952.] No. 13366/53. Class 38 (I). A combined socket contact and terminal comprises a metal sheet bent to form a cylindrical pinreceiving socket 17, Fig. 5, with a tangentially-extending, U- shaped portion 21. A U-shaped metal block 15, Figs. 1 and 4, embraces the socket 17 and has a recess 19 in one limb for the portion 21, the other limb carrying a screw 22 by means of which a conductor may be clamped in portion 2I. The top of the socket I7 is spun over a washer 23 having a tab 24 which is bent over the free end of portion 2 I between the limbs of block I5, whilst the lower end of the socket is passed through an aperture in a coupling base 10 and spun over against a washer 27, said base having a further aperture for a lead registering with portion 2 I. The base has recesses 11 for the sockets with intervening webs 12. In a modification; the block I5 is G-shaped and embraces only the terminal portion 2I, being positioned alongside a hollow boss on the base which receives the socket and in which the latter is fixed by expansion of its ends.
Patent GB-610321-A (GB)
Title: Improvements in systems for focusing and for directing radio frequency energy
IPC: H01Q3/12
Filed: 1945-05-28
Abstract: 610,321. Directive radio apparatus. MAR CONI'S WIRELESS TELEGRAPH CO., Ltd. May 28, 1945, No. 13373. Convention date, May 27, 1944. Addition to 610,318. [Class 40 (vii)] Apparatus for suffusing an area with radio waves and/or for receiving waves transmitted, e.g. reflected, from such an area, comprises focusing means and two waveguide structures each providing scanning in one dimension. The linescanning structure 1, Fig. 1, similar to one described in Specification 610,320, comprises a wave-guide formed by two bent sheets 3, 5 and terminating at one end in a linear aperture 7 and at the other end in an annular aperture 35 scanned by a rotating wave-guide arm 37. The second structure 9, Figs. 1, 2, comprises a stator consisting of an assembly of elemental wave-guides 21 and a rotor 11 consisting of elemental wave-guides 15. The elemental waveguides 21 extend from a cylindrical face surrounding the rotor 9 to an arcuate face 25, the energy paths through the various wave-guides being of equal effective length. The waveguides 15 of the rotor 11 are shaped so as to associate the aperture 7 with the wave-guides 21 successively to provide scanning in the second dimension. Dielectric material 23 may be disposed in the wave-guides 25 to compensate for inequalities in the effective lengths of the energy paths. The width of the elemental wave-guides which are formed of conductive sheets is about half a wavelength. Between the face 25 of the system 9 and the area to be suffused or viewed is arranged a wave-guide lens-like focusing device 27 also constructed of a series of elemental wave-guides 29, all of equal length. Alternatively, the lens-like focusing device 27 may be replaced by a reflector, Fig. 4, comprising an elliptical reflecting surface 41 on which are mounted parallel fins 43 spaced half a wavelength apart and terminating on a circle of different radius. This reflector is arranged obliquely to the effective axis of the system 9.
Patent GB-684265-A (GB)
Title: Improvements in or relating to photo-mechanical resists
IPC: G03F7/34
Filed: 1950-05-26
Abstract: 684,265. Photo-mechanical resists. SHARP, F. W., and AUTOTYPE CO., Ltd. May 18, 1951 [May 26, 1950], No. 13382/50. Class 98 (ii). A transfer sheet comprising a base such as paper, triacetate or vinyl-acetate-chloride copolymers coated with a colloid layer as of gelatin or gum arabic rendered light sensitive by ferric ammonium oxalate, citrate or tartrate is exposed to produce a latent image of the pattern of the desired resist, the colloid layer is transferred to a metal surface or cylinder as of copper, zinc or aluminium, the base is removed and the image is developed as by washing out the soluble unhardened colloid with hot water. The colloid layer may include a plasticizer such as glycerol lactate. Transfer of the colloid layer to the metal surface may be aided by wetting the latter with a solution of oxidizing agent such as alkali bichromate or hydrogen peroxide and this solution may contain an anti-scumming agent such as sulphosalicylic acid, potassium cyanide, ammonium thiocyanate or oxalic acid; and when the colloid has softened sufficiently and adhered to the metal surface, the base, if of non-waterpermeable material, is stripped away without further wetting. After washing out unhardened colloid with hot water the resist is chilled, dried as by use of alcohol or warm air, and may be used to control etch or other standard treatment of the metal to lead to a printing surface. Specification 665,649 is referred to.
Patent GB-216896-A (GB)
Title: Improvements in or relating to electric discharge tubes having an incandescent cathode, an anode and one or more grid-electrodes
IPC: H01J19/34
Filed: 1924-05-31
Abstract: 216,896. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. June 2, 1923, [Convention date]. Vacuum tubes.-A glass tube sealed to the wall of a thermionic valve ends in a number of adjacent glass tubes, of which one at least carries and seals the support for a grid and the other tubes carry and seal the supports for the eathode. As shown in Figs. 1 and 2, the tube 3 sealed to the tube 1 is extended to form three tubes 4, 5, 6, the ends of the tubes 4, 6 being sealed by discs or caps 7, 9 carrying the supports 24, 25 for the cathode 26, and the end of the tube 5 being sealed by a disc or cap 8 having a standard 11 carrying a table 12 to which supports 13 for the grid wire 15 are secured, for instance, by nuts when the supports are of nickel, chrome-iron, or molybdenum, but when of tungsten the supports are inserted in holes in the table and secured by set-screws. The other ends of the supports are secured to a disc 14. The discs 7, 8, 9, standard 11 and table 12 are preferably of chrome-iron. The table 12 is recessed to receive, the supports 24, 25 and is arranged so as to prevent electrons from passing into the tube 1. A V-shaped cathode may be held in tension by securing the middle to a rod 30, Fig. 4, which slides in a glass tube 29 secured by a clamp 28 to a standard 27 mounted on the cathode support 24. In use the valve is mounted with the metallic portion 2 forming the anode extending downwards. More than two electrodes may be mounted on the glass tubes.
Patent GB-169480-A (GB)
Title: Improvements in or relating to the manufacture of covered boxes
IPC: B31B15/00
Filed: 1920-05-17
Abstract: 169,480. Smith, H. B. May 17, 1920. Coating-machines.-In a machine for making covered paper boxes the top shell-blank on a pile S is raised by a transporting- device A<1>, which moves vertically and horizontally and is provided with stencilling-strips 7 previously coated with glue by a roller 30 in a. rocking glueing-device 26. As the device moves to the right, the shell-blank contacts with another roller 31 on the rocking device 26, glue being applied to the under face of the blank if there is glue in the compartment in which the roller 31 rotates.
Patent GB-528412-A (GB)
Title: Improvements relating to drawing boards
IPC: B43L13/00
Filed: 1939-05-06
Abstract: 528,412. Drawing boards. UNIVERSAL WOODWORKING CO., Ltd., and WESTWOOD, C. May 6, 1939, No. 13558. [Class 11] A drawing board, fitted or provided upon its underside with a drawer or drawers for containing drawing instruments, has provision for carrying a Tee-square which locks the drawers when in position. The plywood board 1 is mounted on undercut end bars 2 forming runners for a drawer 3 with compartments 4 .. 6 and a transverse bar 7. The Tee-square is carried by slots in the bars 2 and recesses 14 in the sides of the drawer 3, and lies over the bar 7 which may have side guides 15 and a blade spring 16. Three or four bars 2 may be provided to support two drawers arranged side by side or spaced apart, respectively.
Patent GB-1263695-A (GB)
Title: Vehicle towing assemblies
Inventor: SCOTT ALBERT ROCKWOOD
IPC: B60P3/12
Filed: 1968-03-21
Abstract: 1,263,695. Breakdown cranes. A. R. SCOTT. 21 March, 1969 [21 March, 1968], No. 13638/68. Heading B8H. A break-down crane assembly detachably mounted on a towing vehicle consists of a frame 10 pivotally supporting a boom 16, a stabilizing arm 38 and a ground-engaging wheel assembly 24. The stabilizing arm 38 is pivotally supported in brackets 90 on uprights 86 and is provided at its outer end with a hitch bar connected by chains 108 to the outer end of the boom 16. A transverse bar 42 is pivotally mounted on the brackets 90 and resiliently supports at each end a link 136 provided with an axle 144 for a wheel 142, a locking device being provided, Figs. 6, 7 (not shown), for locking the bar 42 with the wheels 142 engaging the ground. A cable 29 is anchored to the frame 10 and to the arm 38 and passes over a pulley 30 on the boom whereby the arm 38 may be raised to a substantially vertical inoperative position by raising the boom. The arm 38 is connected by a chain 152 to the wheel assembly 24 whereby, when the locking device is released, raising of the arm 38 causes raising of the wheel assembly to an inoperative position, Fig. 1 (not shown). The boom is raised by an hydraulic ram 74 powered by an electric pump 82 on the frame 10.
Patent GB-1263508-A (GB)
Title: Method and circuit arrangements for detecting magnetic recording errors
Inventor: KUCHENBECKER MANDFRED
IPC: G11B5/265
Filed: 1969-03-14
Abstract: 1,263,508. Magnetic heads; magnetic tape data stores. KOMBINAT ZENTRONIK VEB. 14 March, 1969, No. 13656/69. Headings G4C and G5R. Information recorded by a first gap 5 in a magnetic head is played back immediately by a second gap 6 and processed to generate an error signal if a discrepancy exists. The information 12 (Fig. 1) is fed via clock-controlled AND-gate 14 to a recording flip-flop 17 to the record part 2 of the head. The information is played back at 3 and fed via flip-flop 22 to comparator 23 which also receives the original input 12 delayed by shift register 16. An error signal 29 is thus provided via OR-gate 26 from any of the tracks. Negated clock pulses reset flip-flop 22 and AND-gate 28. The head (Fig. 3) is designed such that interference pulses from the record gap to the playback gap are allowed to decay before playback begins. The effect of these pulses is reduced by increasing the reluctance of the centre limb 6 and/or reducing that of the outer limbs 2, 3 and/or by providing one or two back-gaps and/or by providing compensating windings on the outer limbs (Figs. 4-8, not shown).
Patent GB-118902-A (GB)
Title: Improvements in Detective and Protective Devices for Electric Cables.
Inventor: BEAVER CHARLES JAMES
IPC: H02H7/22
Filed: 1917-09-22
Abstract: 118,902. Beaver, C. J., Richards, A. F. W., and Claremont, E. A. Sept. 22, 1917. Protective arrangements for alternating- current systems, in which the cable contains an insulated auxiliary or test conductor surrounding the main conductor and concentric with t h e outer covering, comprise means for connecting the test conductor to earth through a battery and circuitbreaker trip coils in series when relative disturbance of the currents in the main conductors occurs, so that should a fault allow leakage between the test conductor and the outer covering, the trip coils are energized. Means are also provided for connecting the test conductor, at will, to earth through instruments for testing the insulation between the main and test conductors. The test conductor is preferably in the form of flat metal tape spirally wound over the insulated main conductor and preferably insulated from the outer covering in the manner described in Specification 22355/12, [Class 36, Electricity, Conducting &c.]. The circuit-breakers are of such construction and adjustment as to operate only by passage of a direct current of predetermined strength. At each end of a feeder section, a balancing-transformer g<1>, g<3> has its primary coil connected to the main conductors, and its secondary h<1>, h<3> in series with a solenoid i, i<3> adapted to close a switch connecting the test conductor d to earth through the main circuitbreaker trip coil l', l<3> and a battery m<1>, m<3>. The batteries m<1>, m<3> are in opposition, so that no current flows by merely earthing the ends of the test conductor. Should a fault allow leakage between the test conductor and the outer covering, the coils l<1>, l<3> are energized and the circuit-breakers w<1>, w<3> operated. Reactance coils may be included in the circuits between thetest conductor and earth, or may be situated at o<1>, o' and arranged to constitute primary coils of transformers, the secondaries of which are in circuit with solenoids p<1>, p<3> and signalling-devices v. Alternating-current leakage to the test conductor thus gives a signal and energizes the solenoids p<1>, p<3>, which operate switches to close circuits, including the batteries and trip coils, so that'the circuit-breakers w<1>, w<3> are operated. The ends of the test conductor may be connected to earth through plate gaps n', n<3> arranged to break down in the event of the potential of the test conductor rising above a predetermined value by leakage from the main conductors. Switches q, r are provided by which the test conductor may be earthed through an electrostatic volt-meter s, volt-meter or ammeter t, or shunted galvanometer u.
Patent GB-139964-A (GB)
Title: A new or improved guard for the draw rollers which operate the indicators in ring spinning and like frames
IPC: D01H5/18
Filed: 1919-05-30
Abstract: 139,964. Cooper, W. May 30, 1919. Guards and protectors for machinery, arrange. ment and disposition of.-A guard for the projecting end of the roller that operates the output indicator in ring-spinning, intermediate, doubling, or like frames, comprises a sleeve, tube, or cover which extends from the bearing of the roller to the indicator and is provided at one or both ends with means for securing it in position. A tube a. Fig. 5, embraces the end of the roller and is provided with an end plate b, which is secured by screws to the gear-box 'or casing c of the indicator and is dished to fit closely against the shoulder on the end of the roller.
Patent GB-915826-A (GB)
Title: Apparatus for evaporating and warming or superheating liquid carbon dioxide
IPC: C01B32/50
Filed: 1960-04-20
Abstract: 915,826. Re-vaporization of liquefied gas. EVANS, A. J. April 7, 1961 [April 20, 1960], No. 13765/60. Class 8(2). A liquid carbon dioxide evaporator comprises a three-part block of aluminium, the portions 10, 11, 12 of which are cast round a highpressure feed duct 16, a thermostatically controlled electric heating element 41, Fig. 3 (not shown), having projecting ends 15, and a reduced-pressure gaseous carbon-dioxide duct 21 respectively and afterwards bolted together; the duct 21 having a union on its outlet 22 for connection to a place of use. The ducts 16, 21 are of serpentine form and the vapour outlet 18 of duct 16 is connected to duct 21 through a chamber provided with a pressure relief valve 42 and bursting disc 20 and through a reducing valve 23. The feed duct inlet 17 is connected to a bank of liquid carbon dioxide cylinders 45, Fig. 4 (not shown), and the block 10, 11, 12 is housed in a fibre glass filled casing.
Patent GB-1089507-A (GB)
Title: Improvements in or relating to hydro-pneumatic spring systems
IPC: B60G17/019
Filed: 1966-03-29
Abstract: 1,089,507. Adjusting suspension height. HOESCH A.G. March 29, 1966 [May 25, 1965], No. 13922/66. Heading B7D. Means for level regulation in a hydro-pneumatic suspension system includes three-position electric switch means 2, 2a actuated by a floating piston, diaphragm or membrane 1 separating respective liquid and gas chambers 11, 12 in a hydro-pneumatic suspension element. The switch means comprises a moving contact 2 connected to the membrane 1 so as to occupy a central inoperative position corresponding to the mean suspension height or to engage respective fixed contacts 9, 10 on an insulating plate 2a at high and low suspension heights. The moving contact 2 is energized by an A.C. potential derived from the vehicle battery through a multivibrator, blocking oscillator, mechanical chopper or rotary converter 3. The fixed contacts 9, 10 are connected through oppositely sensed rectifiers 4, 5 and averaging circuits 6, 7 to polarized relay 8 having a contactor which occupies a central inoperative position or respective contact positions for energizing electromagnetic valves or compressors. The switch means may alternatively comprise one or more shielded-arc magnetically controllable relays connected to the membrane 1 or controlled by magnets attached to the membrane.
Patent GB-916595-A (GB)
Title: Neutron shielding structure
IPC: G21F1/12
Filed: 1961-04-18
Abstract: 916,595. Neutron shields. UNITED STATES ATOMIC ENERGY COMMISSION. April 18, 1961 [May 3, 1960], No. 13950/61. Class 39 (4). A neutron shielding structure comprises a honeycomb core 11, neutron absorbing powder 17 in the voids of the core, and planar facing sheets 13, 14 of neutron moderating material bonded to the core. The preferred neutron absorbing powder is boron or boron carbide, but reference is also made to boron trioxide, calcium boride, and lithium carbonate, hydroxide, borate, and oxide. The facing sheets are of beryllium or of thermosetting synthetic resin reinforced by sheets of aluminium. Several layers of the structure may be bonded together, different powders being present in the different layers; powdered beryllium oxide may be used in one layer as a neutron moderator. The shielding structure is useful in small portable reactors, for example for aircraft propulsion.
Patent GB-719577-A (GB)
Title: Improvements in couplings for pipes, tubes and rods
Inventor: KULIKOFF WALDEMAR
IPC: F16L37/12
Filed: 1952-06-03
Abstract: 719,577. Pipe &c. couplings. STIERLEN, R., [trading as ROTENBURGER METALLWERKE R. STIERLEN KOMM.-GES]. June 3, 1952, No. 13993/52. Class 99 (1). Radially-extending flanges on cylindrical members 133, 133' having abutting end faces are embraced by a split ring 132 having a radially inward spring, action and provided with flanges to hold the members coupled together. A locking ring 128 may be pushed in the axial direction over the ring 132. The flanges of the ring 132 may be serrated as shown in Fig. 8 and the ends of the ring may overlap ; or the flanges may be toothed. A sealing member may oe disposed between the abutting faces of the members 133, 133.' Means may be provided to prevent relative turning movement of the members.
Patent GB-683838-A (GB)
Title: A guiding device for kinematograph film
IPC: G03B1/50
Filed: 1950-06-06
Abstract: 683,838. Kinematograph apparatus. WEISSBRODT, J., and BROIDO, J. J. June 6, 1950 [June 10, 1949], No. 14051/50. Class 97 (i). A film guiding device comprises a sprocket and two guiding members arranged at the two sides of the sprocket and parallel to its faces, a V-shaped arcuate groove being formed, in the inner face of each member, concentric with the sprocket axis and at a radius intermediate the root and outside radii of the sprocket teeth. In Figs. 1 and 2 a sprocket disc 4 is carried on a spindle 3 between members 5, 6 grooved at 10 to guide a film with central perforations. The members 5, 6 carry bearings for the sprocket spindle. They are secured to lugs 2 projecting from the wall 1 and form film guides round two parts of the sprocket periphery. They may be resilient and flared outwardly at 12 to assist film threading. In another embodiment guides are formed round one part only of the sprocket periphery and the guide members mounted near a diametrically opposite part. In Fig. 6, grooves are formed at 34 a member 33 secured to the wall 1 and in a member 32 hinged to the member 33 and held in contact with it at 36 by a spring 35. In Fig. 7, one guide member 42, for a film with marginal perforations, is secured to the wall 1, the other, 45, is carried on pillars passing through the first and carrying springs which urge the members towards each other, the movement being limited by spacing members. In a similar embodiment the sprocket disc 4 is centrally disposed for use with a film with central perforations.
Patent GB-107316-A (GB)
Title: Improvements in or in connection with Steam Superheaters.
Inventor: KIRKE PERCY ST GEORGE
IPC: F22G7/02
Filed: 1916-10-04
Abstract: 107,316. Kirke, P. St. G. Oct. 4, 1916. Fire and smoke tube superheaters. - Superheating-coils 8 inserted in a boiler smoke-tube 2 are enclosed at each end by packing-material 3, 9. The packing 3 between the coils and the mixing- chamber 7 for the fuel and air from the burner nozzle is preferably of the kind described in Specification 17842/15, [Class 51 (i), Furnaces and kilns, Combustion apparatus of]. The packing 9 is pointed against the direction of flow of the gases, and is formed with ribs 9<a>, and with slots tc receive the ends of the superheating-coils.