baber/WOPTO huggingface dataset:
Patent GB-881438-A (GB)
Title: Code responsive relay
IPC: H01H67/26
Filed: 1959-07-01
Abstract: 881,438. Devices responding to particular signals. GENERAL TIME CORPORATTON. July 1, 1959 [Aug. 22, 1958], No. 22568/59. Class 40 (1). A coded relay reponsive to a predetermined time-sequential pulse code, comprises contacts 41, 42 controlled by coded cams 43, 44 and solenoid-actuated switches 31, 32 operated in accordance with the received signals, the arrangement being such as to maintain a relay 50 energized if the correct code is received. The relay is of the type used in connection with a power line and enables appliances receiving power from the line to be controlled selectively from a central station. The code, which occupies about sixty seconds, includes a start pulse of approximately 4 second's duration, followed by five pulse periods any of which may contain a pulse; then follows a further group of five pulse periods in which only one pulse occurs; the code may be terminated by a final pulse. High-frequency pulses arriving at the power terminals 11 are demodulated by a circuit 20 before being applied to a solenoid 35. When the start pulse arrives it energizes the relay 35 causing contacts 31 to close and contacts 32 to open, so making a circuit from terminal 11a via contact 31 to energize relay 50 via contacts 51, 42 and terminal 11b. Closure of contact 54 by relay 50 energizes a motor 46 which drives a lost-motion device 72, taking up tension in a spring 75 against the retaining effect of a contact spring 56 engaged in a notch of a disc 55. The lost-motion device avoids operation of the relay by a spurious signal which would not last for sufficient time to release the disc 55. When contacts 56 close, the motor 46 is locked in for one complete revolution. Now contacts 51 open so that maintenance of the circuit of relay 50 henceforth depends on cam contacts 41, 42 and relay contacts 31, 32. Each operative pulse received at terminals 11 energizes the relay 35 and changes over contacts 31, 32 ; similarly the lobes on cams 43, 44, arranged in accordance with the code of the relay, change over contacts 41, 42. If the correct code is received, relay 50 remains energized through the following circuit: terminal 11a, contacts 41 or 31, contacts 53, contacts 42 or 32, and back to terminal 11b. Towards the end of the cycle cam contacts 61 close and connect the circuit from terminal 11b through closed contacts 53 to a switch 65. If the final pulse of the code is received, energization of solenoid 35 transfers potential to a terminal 13; in the absence of a final pulse the switch arm 65 connects to a terminal 12. The terminals 13 and 12 may be connected to control separate devices (Fig. 2, not shown).
Patent GB-356889-A (GB)
Title: Improvements in or relating to method of and apparatus for separating vapours from gases by refrigeration
IPC: F25D21/04
Filed: 1930-07-28
Abstract: 356,889. Cooling gases ; refrigerating. FRANKL, M., 234, Ulmerstrasse, Augsburg, Germany. July 28, 1930, No. 22701. Convention date, July 27, 1929. Addition to 294,354, and 308,228, [both in Class 29, Cooling &c.]. [Class 29.] The process of the parent Specification is modified by delivering the gas from the admission regenerator b<1> or b<11> to the spray cooler f at points 1 .. 5 successively lower as the admission regenerator becomes warmer, and a part of the cold gas leaving the spray cooler is branched off and used in a counter-current exchanger p to cool down the spraying liquid, the remainder of the gas giving up all its cold to the outgoing regenerator. The spraying liquid may be led through a concentrator (not shown) before passing through the exchanger p, and is cooled in an exchanger r by a refrigerating machine. The admission to the spray cooler is controlled by a sliding valve s. The process may be applied to the separation of steam from air, benzol from coke-oven gas, or carbonic acid gas from combustion products, and brine, lye, alcohol or toluol may be used in the spray.
Patent GB-1096133-A (GB)
Title: Improvements in and relating to alarms
Inventor: LEE JOHN HENRY
IPC: G08B13/16
Filed: 1965-05-28
Abstract: 1,096,133. Transistor switching circuits. BURGOT AUTOMATIC ALARMS Ltd. May 27, 1966 [May 28, 1965], No. 22737/65. Heading H3T. [Also in Division G4] Alarm signals from a vibration transducer, e.g. a microphone VT pass through a three-stage transistorized amplifier VT1, VT2, VT3 to an emitter follower detector VT4 and an integrator VT5 having a storage capacitor C13 which charges up until it reaches the voltage at which unijunction transistor VT6 conducts to block VT7 and actuate an alarm. When the detector is initially switched on a false signal may be sent to emitter follower VT4. This is obviated by by-passing output from VT3 through a reset circuit consisting of diode MR1, capacitor C11 and resistor R15. The integrator has a decaying memory of about 10 minutes. A diode MR2 is provided to discharge the memory circuit when switching on the device.
Patent GB-188820-A (GB)
Title: Improvements in or in connection with switch fuses
IPC: H01H9/10
Filed: 1921-08-27
Abstract: 188,820. McDowall, C. W., and Norwest Electrical Manufacturing Co., Ltd. Aug. 27, 1921. Switches, quick-action; bases, boxes, and cases. -Relates to switch fuses in which the fuse carrier and the movable member constitute a pivotallymounted unitary body. The switch is contained in a metal casing 1 and has fixed clip contacts 3, 4 which are bridged by a movable contact comprising a fuse carrier 9 with end blade contacts 18, 19. The carrier 9 is provided centrally with semicircular clips 20 secured together by screws 21, two metal rods 24 passing through holes in the clips 20 and engaging therein recesses in the member 9 to securely grip this member. Alternatively as in Fig. 8 the rods 24 may pass through holes in lugs 23 integral with the member 9. The rods 24 are secured at their ends to brackets 25 by nuts 26 to form a rotatable framework. At one end a bracket 25 pivots on a pin 27 projecting from the side of the casing 1 and at the other end a bracket 25 is secured to a spindle 27 passing through the side of the casing 1 and operated through a lost-motion clutch by an external operating handle. To this bracket 25 is attached a lateral arm 29 with a roller 30 which moves along a flat spring 31 to produce a quick on and off motion, movement in the latter direction being limited by a stop 33. The fuse wire 17, Fig. 4, passes through a central insulating tube 12 and is clamped under nuts 16 in the metal end pieces 10, the wire being retained in position by guides 14. The contact blades 18, 19 are secured to flattened sides 10<a> of the end pieces 10. Where the framework carries more than one fuse carrier 9 they are separated on the rods 24 by distance pieces in the form of - sleeves 34.
Patent GB-586619-A (GB)
Title: Improvements in impedance transformers for co-axial lines
IPC: H01P5/02
Filed: 1944-11-16
Abstract: 586,619. Impedance-matching. STANDARD TELEPHONES & CABLES, Ltd., GENT, A. W., and WALLIS, P. J. Nov. 16, 1944, No. 22764. [Class 40 (iii)] In a coaxial impedance-matching section for coupling two coaxial lines L1, L2, having unequal impedances, one or each of the conductors is continuously tapered. The section may be of any length, Fig. 1 (not shown), but in order that the transformed impedance may be substantially resistive the length of the section is preferably an integral number of half-wave-lengths, and both the conductors are tapered. The section may comprise a half-wave portion X, in which the conductors are oppositely tapered, and a portion Y, of unrestricted length, in which the diameter of the inner conductor. bears a conduit ratio to that of the outer one. Various embodiments of the principle are illustrated in Figs. 3 ... 6 (not shown).
Patent GB-652778-A (GB)
Title: Process for the removal of carbon dioxide from gases by cooling
IPC: C01B32/50
Filed: 1948-08-30
Abstract: 652,778. Separation of gases. SOC. L'AIR LIQUIDE SOC. ANON. POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES G. CLAUDE. Aug. 30, 1948, No. 22849. Con- - vention date, July 21. [Class 8(ii)] In a process for separating carbon dioxide from gas mixture, e.g. air by cooling in which a cooling gas, e.g. nitrogen from an air rectification column and the carbon dioxide bearing air are passed alternatively through cold regenerators or the like so as to condense and sublime the carbon dioxide and making use of a mass of cooling gas in excess of the air from which the carbon dioxide, is to be separated, this extra mass of gas is obtained by.collecting near the end of a cooling period substantially carbon dioxide free cooling gas, e.g. nitrogen retaining it and adding it to the cooling gas in a subsequent period.
Patent GB-1018840-A (GB)
Title: Improvements relating to ionisation gauges
IPC: H01J41/04
Filed: 1964-06-02
Abstract: 1,018,840. Ionization manometers. M. M. DUNKEL, [trading as E. LEYBOLD'S NUCHFOLGER]. June 2, 1964 [June 6, 1963], No. 22855/64. Heading H1D. In an ionization gauge a central cathode 2 is surrounded by a foraminous anode 3 and an ion collecting electrode 4 which define between them a substantially enclosed ionization chamber. As shown, the electrode 4 is provided with annular end plates 41. Grids 5, at or below cathode potential, inhibit the escape of electrons through the ends of the electrode system. The anode 3 and/or electrode 4 are made of a noble metal, e.g. platinum, or noble metal alloy to reduce secondary emission.
Patent GB-332067-A (GB)
Title: Improvements in or relating to drying ovens
IPC: F26B15/08
Filed: 1929-07-25
Abstract: 332,067. Groom, S. L. July 25, 1929. Endless bands, articles carried by; charging.- In a tunnel oven for drying plates &c. of the kind in which the plates are carried by an endless chain conveyer A, a charging device is situated at each end of the oven. The conveyer has wire frame carriers C<1> with hooked ends and is mounted on sprockets B with horizontal axes, small sprockets or rollers B<1> being provided for spreading the carriers at the feeding point. The feed conveyers E, E<1> have dogs H by which the plates are pushed on to the carriers. The use of two feed conveyers may be applied to an oven in which the main conveyer is mounted on sprockets having vertical axes, as described in Specification 328,624.
Patent GB-392524-A (GB)
Title: Improvements in and relating to sound reproducing devices
IPC: H04R9/00
Filed: 1931-08-14
Abstract: 392,524. Loud-speakers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Kuehni, H. P. ; 68, Union Avenue, Schenectady, New York, U.S.A.) Aug. 14, 1931, No. 22967. Convention date, Aug. 14, 1930. Void [Published under Sect. 91 of the Acts]. [Class 40 (iv).] The driving unit of a loud-speaker comprises two magnets 15, 16, mounted on a frame 14 so that poles of opposite polarity are adjacent, and a transformer comprising a core 19 with a leg 20, primary windings 21, 22, and a secondary winding 24 disposed in the air gaps formed by the magnets 15, 16 and driving the diaphragm 10 through a rod 31. Speech currents fed to the primary windings 21, 22 induce currents in the winding 24. The winding 24 consists of a thin, flat, rectangular plate of copper or aluminium and is supported by strings 29.
Patent GB-1009651-A (GB)
Title: Improvements in holders for recording tape or film spools
Inventor: GIBSON JOHN BROWN
IPC: G03B21/32
Filed: 1963-06-10
Abstract: 1,009,651. Holding record tape spools. MAGNAVOX ELECTRONICS CO. Ltd. April 21, 1964 [June 10, 1963], No. 23046/63. Heading G5R. [Also in Division G2] A holder for a cine film or recording tape spool of the kind having a central hole from which slots 9 radiate at 120-degree intervals, comprises a hollow stud 2 and a spring 6 which urges the spool upwardly against retaining prongs 7 on the stud placed at 120-degree intervals to pass through slots 9, the spool being turned through 60 degrees to lock it on to the stud. Spring 6 is held in position between stud 2 and mounting box 3 by a screw 4. A spiral spring may replace spider 6.
Patent GB-914391-A (GB)
Title: Air purifier
IPC: B03C3/09
Filed: 1961-06-27
Abstract: 914,391. Electrostatic air filters. COOK, R. R. June 27, 1961, No. 23125/61. Class 39 (1). [Also in Group XXVIII] An air purifier comprises a hollow body 10 with an air inlet 50 at one end screened by an adhesive-coated expanded aluminium grill 11 which traps coarse dust and fluff, a suction fan 51 within the body beyond the grill 11, and a plurality of louvred metal dust-collecting plates 20 disposed obliquely across the air flow beyond the fan 51, alternate plates 20 being charged to 10-14,000 volts D.C. from a power pack 14 within the body to effect electrostatic precipitation of the fine dust. The plates 20, which may also be coated with adhesive, are supported one inch apart between glass straps 18 supported on the sides of the body 10, and the louvre openings 24 in adjacent plates extend in opposite directions to retard the air flow. The grill 11 is supported across the air inlet by clamps 12, the grill 11 and the plates 20 being removable for washing. The purified air exits from the body 10 through spaced slits to provide for diffused entry into the atmosphere. The purifier may be mounted in an air conditioning or heating duct, in which case the duct forms the body 10.
Patent GB-231493-A (GB)
Abstract: 231,493. Athimon, F. March 29, 1924, [Convention date]. Hand and foot actuation; compensating for wear.-In vehicle brakes of the type provided with means for automatically compensating for wear of the brake shoes, the pedal &c. is provided with a cam outline having successive ramps of differeut slope and co-operates with a rocking member which is secured to the braking member operating shaft and operatively connected with the automatic adjusting device. In the form shown in Fig. 5, the brake pedal 8 is formed with cam surfaces 10-13 which, in a brake application, bear successively against a roller 14 mounted on a fixed spindle carried by links 16 from the brake rock shaft 2. The pedal 8 is mounted on a spindle 7 supported by a link 6 freely mounted on the shaft 2. and actuates the shaft 2 through a threaded rod 5 and arm 1. A ratchet nut 9 screwed on the rod 5 is engaged by an adjusting pawl 23 carried by an extension of an arm 18 pivoted on the spindle 7 and having a guide slot 20 through which passes a screw 21 secured to one link 16, while a locking pawl for the nut is carried by an arm on the spindle 7. With this arrangement, when the pedal is depressed, the shaft 2 is rocked by the rod 5 and arm 1, the part 10-11 of the cam providing an initial rapid movement to take up slack, the part 11-12 serving to compensate for any elasticity in the transmitting mechanism, and the part 12-13 providing a slow movement for developing the braking pressure. When, due to wear of the shoes, the stroke of the pedal increases sufficiently to permit the pawl 23 to slip over a tooth, the nut 9 is rotated during the return movement of the pedal to shorten the effective length of the rod 5. In a modification, Fig. 6, the pedal 34 is mounted on a fixed shaft 35 and the cam surfaces, formed on an arm 36, are adapted to engage a roller 37 on an arm 39 fixed on the brake rock shaft 40. The arm 39 is adapted to actuate the front wheel brakes through a screwed rod 42 passing through a spindle 41 and carrying a ratchet nut 43, engaged by an adjusting pawl 44, carried on an extension 45 of the arm 39, and by a locking pawl carried by the spindle 41. An arm 48 on the rock shaft is adapted to actuate the rear wheel brakes through similar connections. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a third form, Fig. 10 (Cancelled), the pedal 52, actuating the rock shaft 50 through an arm 49, being provided with toothed and smooth sectors 53. 54 adapted to cooperate with similar sectors 55, 56 secured to a screwed rod 57, extending through a spindle 58 mounted in a bracket 59 and carrying a ratchet nut 60. The sectors 55, 56 are eccentrically mounted with respect to their pivoting axis 58, so that they act similarly to the cams already described. The nut 60 is provided with adjusting and locking pawls mounted respectively on the bracket 59 and the spindle 58. This subjectmatter does not appear in the Specification as accepted.
Patent GB-835982-A (GB)
Title: Article feeding means
IPC: B65B35/24
Filed: 1958-07-18
Abstract: 835,982. Endless conveyers. PACKAGE MACHINERY CO. July 18, 1958 [Aug. 19, 1957], No. 23151/58. Class 78 (1). Apparatus for feeding articles in spaced apart relation to wrapping and other machines having extremely high rates of operation includes a constantly-rotating controlling means, e.g. a wheel, against which the abutting articles are fed and which has projections which release successive articles to conveying means moving faster than the rate at which the line of abutting articles is advanced, thus spacing the articles along the conveyer. The articles are fed to the feed-wheels 134, Fig. 2B, by endless belts 28, 66, Fig. 2A. The right-hand pulley 70 supporting the belt 66 is mounted in plates 76 which can swing about the shaft 72 carrying the other supporting pulley 68. Screws 104 limit the downward movement of the plates 76 and springs (not shown) tend to maintain the plates in the lowest position. The plates 76 have extensions 222 which are connected by a bar 224. The middle of this bar supports a bracket 226 in the end of which a screw 228 is mounted. This screw is in the path of the tail 220 of a lifting member 218 fast on a shaft 214. An arm 210, also fast on this shaft, is connected to the plunger 206 of a solenoid 202 and is normally maintained in the position shown in Fig. 3 by a spring 212. A stop-member 230 secured to the member 218 supports stops 234. A U-shaped backing-plate 114 for the belt is adjustably secured to the plates 76. The articles pass from the belts 28, 66 on to a plate 118 and below a guide-plate 120. These plates, and a fixed sloping guide 146, direct them onto a platform 148 disposed below the feeding wheels 134. Flights 150 mounted on roller chains 152 move across the platform and convey the articles to the wrapping machine. The feeding wheels 134 are fast on a shaft 136 which is driven from the shaft 156 of the driving-sprocket of the chains 152. The shaft 156 is driven from the wrapping-machine and drives all the elements of the feeding system. A pair of microswitches 194, 196 at the feeding end of the belt 66 are arranged to cause energization of the solenoid 202 when closed. The switches 194, 196 are arranged in parallel and normally are maintained open by contact with the articles on the belt. A manually-actuated switch 238, Fig. 12, is also arranged in parallel with the switches 194, 196. When any switch is closed, the arm 210. is rotated clockwise, the tail 220 is raised and puts the belt 66 out of action and the stops 234 are lowered. A pair of cams on the shaft 176 time the energization and de-energization of the solenoid in relation to the movement of the wheels 134. Specification 832,127 is referred to.
Patent GB-1129417-A (GB)
Title: An apparatus for applying electrically insulating housings to electrical connectors
IPC: H01R43/20
Filed: 1967-07-13
Abstract: 1,129,417. Housing flag connectors. AMP. Inc. 13 July, 1967 [3 Aug., 1966], No. 32197/67. Heading H2E. A machine is provided for applying electrically insulated housings to electrical connectors of the flag type, where the housings 18 extend from one side of a carrier strip 20 and comprise two hinged together portions 22, 24 adapted to be closed about the connector and retained thus by integral latches. The machine comprises a feed member 56 which feeds the housings forward to the assembly position, a ram 36 which reciprocates towards and away from the support surface at the assembly position, and equipment which turns one portion 24 of the housing about the hinge and towards the second part 22 so that it lies in the path of the ram. This turning equipment comprises a guide plate 68 which lies in the path of the housings and which has an inclined edge 70 to bend up their portions 24, and a spring-biased reciprocating arm 72, actuated by the ram through linkages, which completes the folding operation before the ram itself engages the housing portions and latches them. Concomitantly with the closing of the housing a shearing member 118 severs the housing from its feed strip and also cuts off the waste portion of the strip.
Patent GB-671986-A (GB)
Title: Improvements in explosive shells
IPC: F42B12/44
Filed: 1950-09-21
Abstract: 671,986. Explosive shells. BREVETSAEROMECANIQUES SOC. ANON. Sept. 21, 1950. [Oct. 11, 1949] No. 23203/50. Class 9 (i). Relates to multiple-action explosive shells having a front element 1 with percussion fuze 5 and explosive charge 3, and a rear element 2 with percussion fuze 8 and explosive charge 4, the elements being arranged in tandem. According to the invention, a neutralizing device is provided to screen the percussion fuze 8 of the rear element until after the front element has exploded. In the form shown applied to a small-calibre shell, the front element fits over the fuze 8 and a two-part disc 13, supported by a distance-piece 14, screens the percussion rod 12 of the fuze 8. On impact with a first obstacle, the front element bursts and the asymmetrical parts of the disc 13 diverge and expose the fuze 8 which causes bursting of the rear element on impact with a second obstacle. The rear element only is provided with igniting means for automatic destruction, a passage 15 being provided having a plug 16 which allows communication in rear to front directions only to effect automatic destruction of the front element, whilst precluding destruction of the rear element when the front element explodes on impact. The explosive charges may include incendiary substances.
Patent GB-1347299-A (GB)
Title: Reel cutting and rewinding machine
IPC: B65H18/20
Filed: 1971-04-19
Abstract: 1347299 Winding webs JAGENBERGWERKE AG 19 April 1971 [4 April 1970] 23245/71 Heading B8R In a two-drum winding machine the winding drums 2, 3 are arranged to have different resonant frequency vibration characteristics to eliminate damaging vibrations which might otherwise occur in critical conditions. This effect is achieved by providing drum 3 along part of its interior with a solid core 6 so that it is heavier than the drum 2 which is hollow.
Patent GB-414521-A (GB)
Title: Improvements in and relating to extraction apparatus
IPC: C01B25/22
Filed: 1933-08-21
Abstract: <PICT:0414521/III/1> An apparatus for extracting raw materials with a solvent, consists of an annular extraction chamber formed between two stationary concentric cylinders a, b having circular annular end plates, within which rotates a circular member f carrying sieve members g which thus forms a number of compartments with the stationary casing.  Raw material containing fat is fed through a shaft h and is carried downwards through a stream of benzine admitted through an inlet i.  The extract passes through oblique holes l into a chamber o from which it is drawn off through an upwardly inclined pipe p.  The holes l are covered by a sieve m and a perforated sheet k.  The extracted material is removed through a shaft n. The flow of solvent and time of extraction is controlled by providing the pipe p with a number of outflow points of different heights.