baber/WOPTO huggingface dataset:
Patent GB-505022-A (GB)
Title: Improvements in or relating to relaxation oscillation generators
IPC: H03K4/43
Filed: 1937-11-03
Abstract: 505,022. Valve generating circuits. FAUDELL, C. L. Nov. 3, 1937, No. 30037. [Class 40 (v)] Synchronizing pulses are amplified before application to an oscillator, the amplifier used being that provided for amplifying the oscillations produced. As shown in Fig. 1, condenser 8 is charged slowly through resistance 6 and discharged quickly through valve 5, when synchronizing pulses are received over 18. The waves produced are amplified by valve 10 and saw tooth current is provided in scanning coils 15. The synchronizing pulses are applied from 18 across 7 and are thus applied to the grid of valve 10 and are amplified before being fed over condenser 16 to valve 5. Resistance 7 need not be in the cathode lead of valve 5, but could be connected to the grid lead of valve 10 as indicated in Fig. 3. In this embodiment the scanning coils 15 are connected to the anode of valve 10 over transformer 22 and the feed back to valve 19 is connected to one or other end of the transformer winding depending on whether the synchronizing pulses are positive or negative. Embodiments (i) using a blocking oscillator and (ii) producing a push pull output are described in the Specification. Specifications 471,737 and 489,231 are referred to.
Patent GB-280572-A (GB)
Title: Improvements in or relating to friction clutches
IPC: F16D13/04
Filed: 1927-11-10
Abstract: 280,572. Bauchet, H. Nov. 13, 1926, [Convention date]. Clutches, friction.-A friction clutch, particularly applicable as one of a pair replacing differential gearing in endless-track and other tractors, comprises a plate 4 splined to a driving-shaft 1 and friction discs 5 secured to a divided casing 3. 3<a> and to a ring 10. which carries rigid screws 9 engaging planet pinions 8 mounted in the casing wall 3<a>. These pinions mesh with a sun-wheel 7 rigid with a brakedrum 7a, secured by a bolt 6<a> to a spiral spring 6. the other end 6b of which engages the casing hub. On applying a band-brake 11. the spring 6 winds up to withdraw the ring 10. and expands on release of the brake to engage the clutch. The hub of the casing part 3 may carry the running wheel or driving- pinion of the tractor. The clutch may be remotecontrolled, as by a cord. The spiral spring may be replaced by helical springs. The Specification as open to inspection under Sect. 91 (3) (a), comprises also statements that the spiral spring may be replaced by blade springs and the screws by face cams, and that the toothed gears may be omitted, the ring 10 being directly actuated from the drum 7a by a screw or helical cam. This subject-matter does not appear in the Specification as accepted.
Patent GB-898896-A (GB)
Title: Improvements in or relating to electrical plug and socket connectors
Inventor: LOCK TOM
IPC: H01R12/72
Filed: 1957-09-26
Abstract: 898,896. Two-part couplings. PAINTON & CO. Ltd. Sept. 24, 1958 [Sept. 26, 1957; March 17, 1958], Nos. 30252/57 and 25244/58. Class 38 (1). A socket connector for receiving either plug pins or contacts carried by a printed circuit panel comprises, in one form, an elongated unitary body 1 having a central longitudinal slot 5 for the reception of the panel 6 and intersected by a number of transverse slots 2 shaped as shown. Located in each slot 2 is a socket contact 8 bent up from wire to form a pair of curved contact arms 11 and a terminal shank 9. The sides of the shank 9 are bent apart after passage thereof through the constricted base of slot 2 whereby the contact is retained in the slot with shoulders 10, formed between the shank and arms 11, abutting the base of the slot. The outer ends 12 of arms 11 are received in a widened part of the mouth of the slot. Guides for the panel 6 are attached to the ends of body 1. In a modification, Fig. 4 (not shown), the body is formed in two parts which retain the contacts captive in recesses formed therein, there being no necessity for bending the shanks 9 in this case. Fig. 5 shows another construction wherein the contacts are similar to those previously described except that after bending the wire to form the shank 30, the limbs are crossed over one another before being bent to form the curved arms 32, and the ends of these arms are bent back on each other at 34. The crossing of the limbs facilitates the pressing together of the arms to insert the contact into an internally enlarged cavity 28 in the unitary body 28, the ends 34 being received in recesses 41. A round pin 33 is shown engaged with this contact. The sides of the body are formed with headed projections 44 by means of which the socket may be secured to a support. This type of contact alternatively may be held captive in a two-part body, Fig. 8 (not shown), the ends 34 being omitted in this case. In all the embodiments, the body may be formed of synthetic resin or, according to the Provisional Specification, may consist of resilient material such as nylon. Specification 700,999 is referred to.
Patent GB-402030-A (GB)
Title: A new or improved method or process of treating amber
IPC: A61N1/16
Filed: 1933-08-02
Abstract: Amber is exposed to artificial sun rays, and made into necklaces &c. to be worn by persons suffering from affections of the throat or lungs.  The subjection to an electric field described in the parent Specification 401,272 is dispensed with. The amber may be exposed for five or ten minutes, two feet from a mercury vapour lamp of 450 watts with a three inch burner.ALSO:Amber treated with artificial sun rays is made into necklaces &c. to be worn by persons suffering from affections of the throat and lungs.  The amber may be exposed for five or ten minutes, two feet from a mercury vapour lamp of 450 watts with a three inch burner.  Specification 401,272 is referred to.
Patent GB-208326-A (GB)
Title: Improvements in and relating to apparatus for bringing liquids and gases into intimate contact
IPC: B01D47/16
Filed: 1922-11-07
Abstract: 208,326. Holmes & Co., Ltd., W. C., Henshaw, D. M., and Whittell, J. Nov. 7, 1922. Scrubbers and washers with brush-carrying or other members f rotating within a cylindrical casing a have a partitioned extension j at one end, within which is housed the engine or motor k and gearing for driving a shaft g upon which the members f are mounted. The engine is carried upon a bed m having supporting feet which align with external columns supporting the casing . The outer end of the extension is closed by a partition r provided with two vertical centrally closing doors s through which access is obtained to the engine gearing and a liquid filler t. Specification 162,166 is referred to.
Patent GB-485540-A (GB)
Title: Process for concentrating solutions by freezing out the solvent and apparatus for carrying out such process
IPC: B01D9/02
Filed: 1937-11-05
Abstract: 485,540. Concentrating liquids by freezing. ESCHER WYSS MASCHINENFABRIKEN AKT.-GES. Nov. 5, 1937, No. 30371. Convention date, Nov. 6, 1936. [Class 29] In the concentration of solutions by freezing out ice crystals therefrom in a vertical cylindrical apparatus in the lower jacketed part of which the solution is cooled and the separation of ice crystals and solution is effected in a superimposed unjacketed part of the apparatus, the solution is pre-cooled by passage through a hollow shaft disposed along the axis of the apparatus before admission to the cooling zone so as to initiate the formation of coarse grain crystals in the subsequent cooling of the mixture of solution and ice crystals. A vertical cylindrical apparatus comprising cooling and separating zones 2, 3 is provided with a hollow rotary shaft 21 and a concentric rotary shaft 22 so that solution to be cooled admitted thereto at 14 and 16 flows into the cooling zone through apertures 15 and 34. The inner shaft 21 is provided with a propeller 7 surrounded by a cylindrical baffle 8, and fixed baffles 9 and 10 are also disposed in the cooling zone. The outer rotary shaft 22 carries at its lowermost part, a scraper 13 to prevent ice formation on the walls of the cooling zone. In the separating zone, the outer rotary shaft is provided with a conveyer worm 18, a simple mixing bar 19, a perforated filter tube 20 for evacuating solution through the annulus between the shafts, and an ejector blade 30 for discharging the crystals. The separating zone is also provided with a stationary perforated tube 24 and a sieve 25 forming part of the wall of the apparatus, both for evacuating solution through pipes 24, 26 ; finally, tranquilizing plates 33 are attached to the sides of the apparatus. A brush 29 may be attached to the worm 18 for cleaning the sieve 25 and the solution withdrawn through the latter may be collected in a quiescent zone 11 via pipe 28. The discharged crystals may be further separated from solution by centrifugal separators or suction filters and the solution may be further concentrated, such as by evaporation.
Patent GB-359191-A (GB)
Title: Improvements in or relating to casings for universal joints
IPC: F16D3/84
Filed: 1930-10-10
Abstract: 359,191. Universal joints. SPICER, C. W., 620, Stratford Place, and TARBOX, G. L., 1440, Bennett Road, both in Toledo, Ohio, U.S.A. Oct. 10, 1930, No. 30412. [Class 80 (ii).] In order to prevent leakage of lubricant from universal-joint casings, an element 50, Fig. 1, with a sharp edge is arranged to wipe over the inner surface of a part-spherical shell 20, both sides of the edge forming acute angles with the tangent to the shell at the point of contact. The element 50 is preferably of slightly flexible material, but is axially rigid, and is pressed by a spring 60 which bears on a Z-section collar 61 provided with packing 62. The usual outer shell 30, with packing 32, may be retained to exclude dust. The moulded element 50 may be replaced by a sheet-metal shell 72, Fig. 3, the scraping-edge being formed on a moulded ring 70 seated in a groove 71.
Patent GB-602982-A (GB)
Title: Improvements in or relating to variable reactance electron discharge tube circuit arrangements
IPC: H03C3/14
Filed: 1945-11-14
Abstract: 602,982. Frequency modulation; automatic tuning correction. TILLMAN, J. R. Nov. 14, 1945, No. 30476. [Class 40 (v)] In a variable reactance valve arrangement, the anode and one grid of the valve are supplied with voltages having a predetermined phase relation, and negative feedback is applied to this grid and an impedance depending on a control voltage applied to another grid appears across the anode and cathode of the tube. The control grid G2 of a pentode is fed with quadrature voltage by network Z1, Z2, C, Fig. 1, and with negative feedback through resistors RK, RNF and R. A control voltage, which may be the modulating signal in a frequency-modulated transmitter, or an automatic frequency control voltage, is applied across terminals IN, causing a variation in the reactance appearing between terminal X and ground. One side of the input may be earthed by shunting the resistors RK, RNF by an inductance, and including a lowpass filter in the other input lead. In a modification, Fig. 2, the quadrature voltage appearing across Z2 is applied to the control grid G1 of V1 through amplifier valves V2, V3, which are also included in the feedback path. Negative feedback may also be applied to valves V2, V3, either separately or across them both. A variable bias voltage may be applied to grid G1, to compensate for changes in emission as the valve ages. The variable reactance may be obtained across the output of a highly degenerated amplifier coupled to a load in the anode circuit, the quadrature voltage being derived from the amplifier output. The feedback loop may include a step-up transformer. The Specification includes a discussion of the stabilizing effect of degeneration in a thermionic reactance arrangement.
Patent GB-332472-A (GB)
Title: Improvements in sealing-locks for bags
IPC: B65D55/14
Filed: 1929-10-08
Abstract: 332,472. Sato, R. Dec. 18, 1928, [Convention date]. Seal locks for mail bags.-The end of a bolt 24, after being passed through the folds at the mouth of the bag, not shown, is inserted through an aperture 23 in the bottom of a casing 1 and is held by members 5, 6 pivoted at 3, 4, which snap into a groove in the bolt under action of blade-springs 7, 8. The casing has a fixed cover 9 and a hinged lid 10 with registering key-holes 15 through which a key is inserted to release the bolt. The key, when rotated, separates members 5, 6 by engaging curved surfaces of recesses formed therein, the recesses having projections 11, 13 which limit rotation of the key. When the lock is applied to the bolt, a paper seal or label is pasted on cover 9 to obstruct the key holes 15, and is protected by the lid 10 which is held closed by a catch member 25 engaged by projections 26, 27 on members 5, 6. Blade springs 17 acting on suitably shaped projections 19 on the lid serve to throw the lid open when it is released by the key.
Patent GB-847326-A (GB)
Title: Improvements in or relating to textile spinning and twisting spindles
Inventor: SCHUESSLER ALFRED
IPC: D01H7/10
Filed: 1958-09-24
Abstract: 847,326. Mounting textile spindles. SPINNEREIMASCHINENBAU KARL - MARX - STADT VEB. Sept. 24, 1958, No. 30515/58. Class 120(2). [Also in Group XXXII] A textile spindle 1 is mounted on a bank 2 by a nut 7 which bears against a rigid ring 5 resting on an annular resilient support 4.
Patent GB-283920-A (GB)
Title: Improvements in or relating to cooling systems for internal combustion engines
IPC: F01P11/02
Filed: 1927-11-14
Abstract: 283,920. Barlow, L. P. Jan. 20, 1927, [Convention date]. Cylinders, cooling.-In a vapourcondensing cooling system, the liquid level in the cylinder jackets is maintained by a distributing box 17 into which condensate from the condenser 3, which is stored in a tank 9, is pumped by a pump 12; a pipe 24 conveys the majority of the liquid back to the intake side of the pump 3. The box 17 and the tank 9 are located away from, and out of the influence of the heat of, the engine. The box 17 has an entrance 16, for the cooling liuid, and an exit 20, which may be closed by a non-return valve 33, leading to the vapour space 2 above the cooling jackets, and a small opening 22 to permit excess liquid to circulate through a chamber 23 and the pipe 24, the opening 22 being smaller than either the bore of the pipe 24 or the exit 20. The opening 22 is preferably formed in a spring-pressed plate valve 26 which opens under excessive pressure of the cooliug liquid.
Patent GB-1127759-A (GB)
Title: Improvements in or relating to electric cables
Inventor: JONES REGINALD THOMAS
IPC: H02G15/00
Filed: 1966-07-07
Abstract: 1,127,759. Electric cable joints. MIDLAND SILICONES Ltd. 1 Aug., 1967 [7 July, 1966], No. 30602/66. Heading H2E. An insulating barrier at a joint or termination in the plastics sheath of an electric cable comprises a sleeve or cap member overlapping the discontinuity and making a liquid-retaining fit on the sheath, the space between the sleeve or cap and the sheath being filled with a gellable organo-silicon based liquid or paste composition, e.g. a mixture of an organopolysiloxane containing silicon-bonded unsaturated radicals, an organopolysiloxane containing silicon bonded hydrogen atoms and a platinum catalyst.
Patent GB-225069-A (GB)
Title: Improvements relating to the sorting, separating or classifying of cards, flat sheets, tallies or the like
IPC: G06K21/04
Filed: 1923-12-05
Abstract: 225,069. Perkins, A. Dec. 5, 1923. Statistics, compiling; sorting cards.-A recordcard, flat sheet, tally or the like has a cut-away part at one corner and at one or more other corners a hole x in a corresponding position to the cut-away part so that in a mixed stack of cards, by placing a segregating rod z through these corner apertures x, cards which are upside down &c. may be sorted out and placed the correct way up as a card A having the cut-away portion a at the top right-hand corner. The cards may afterwards be finally sorted and classified by any method, such as that described in Specification 203,734.
Patent GB-776008-A (GB)
Title: Improvements in or relating to constant voltage apparatus
IPC: G05F3/06
Filed: 1954-10-25
Abstract: 776,008. Transformers; automatic regulation. SOLA ELECTRIC CO. Oct. 25, 1954 [Nov. 6, 1953], No. 30649/54. Classes 38 (2) and 38 (4). A high reactance, limited current, transformer for use in a system in which a load is required to be supplied with a constant voltage irrespective of supply voltage variations comprises a main core member 14 around which is placed a secondary winding 12; one or two auxiliary core members-as shown two members 15, 16- being placed at one or either side of the winding 12, the primary winding 11 then being wound over the core members and the secondary winding in toroidal form and lastly the whole assembly having a toroidal auxiliary winding 13 wound thereover. The core members are all formed from spirally wound magnetic strip and may if desired be cut to provide air gaps in the magnetic circuit. A condenser 24 (see Fig. 8) is connected across the ends of the secondary winding 12 such that when the normal operating voltage is applied to the primary winding 11 the core 14 saturates and causes series resonance in the circuit including the winding 12 and condenser 24. Any change in the voltage applied to the primary winding 11 will then have little effect on the voltage appearing across the secondary winding 12; what little effect there is is eliminated in a load circuit 28 by connecting the winding 13 in series opposition to the winding 12 or, since the voltage across the winding 12 is very high due to the resonance, the part of the winding 12 between the terminal 25 and the tapping 27.
Patent GB-1106356-A (GB)
Title: Improvements in silencers for jet nozzles
Inventor: JUMELLE LOUIS FRANCOIS
IPC: F02K1/38
Filed: 1966-07-07
Abstract: 1,106,356. Jet propulsion nozzles - noise suppressing. SOCIETE NATIONALE d'ETUDE ET DE CONSTRUCTION DE MOTEURS d'AVIATION and OFFICE NATIONAL d'ETUDES ET DE RECHERCHES AEROSPATIALES. July 7, 1966 [July 28, 1965], No.30658/66. Heading F1J. The invention relates to a jet propulsion nozzle assembly having means which are effective to silence the nozzle, the silencer comprising a plurality of tubular members which are disposed around the periphery of the jet stream, each tubular member being movable between a retracted position and at least one effective position in which the radially inner end of the member projects into the jet stream, there being means whereby ambient air is caused to flow through the tubular member into the jet stream. In the embodiment shown, the jet nozzle is of convergent form as indicated at 1. Downstream of the nozzle throat is a divergent portion 2 which forms part of the aircraft structure 3. A passage 4 for flow of secondary air is provided between the jet pipe and the wall 10 of the aircraft structure. The periphery of the jet stream is indicated at 15 but the periphery may be of greater or less diameter as indicated at 15<SP>1</SP> or 15<SP>11</SP> in Fig. 2. The nozzle silencer device comprises a series of open-ended tubular members 5 each of which is mounted for angular movement about an axis 6 between a retracted position 5b, Fig. 1b in which it is disposed tangentially in a space 2a, and an effective position 5a, Fig. 1a in which it projects radially into the jet stream, the inlet end of the tubular member being inclined as shown so as to form a scoop for secondary air. The tubular member has secured thereto a right angle bracket member 7, Fig. 2, the bracket being mounted for angular movement on a shaft 6. The bracket is also secured to an actuating lever 11 and a closure plate 33, the levers 11 of the assembly of tubular members being interconnected by linkage 12, 12a for simultaneous movement. The effective and retracted positions of the tubular member 5 and lever 11 are shown in full lines 5a, 11a and 5b, 11b, respectively. The fact that the axis of rotation 6 of the tubular member is offset from the longitudinal axis thereof allows the depth of penetration of the tubular member into the jet stream to be varied as indicated by the three positions 5a, 5<SP>1</SP>a and 5<SP>11</SP>a of the tubular member. The closure member 33 closes off the opening in the fairing member 32 when the tubular member is in the retracted position.
Patent GB-377861-A (GB)
Title: Improvements in or relating to a continuous process for moulding gelatine, glue or like gelatinous substances
IPC: C09H9/02
Filed: 1931-11-06
Abstract: 377,861. Casting and cutting gelatine &c. JAHN, A. R., 15, Brittannia Street, Kings Cross, London. Nov. 6, 1931, No. 30759. [Class 87 (ii).] A continuous process for moulding gelatine, glue or like substances consists in ejecting a film of predetermined thickness on to a moving conveyer, such as an annular plate 3, artificially cooling the film to a jelly, passing it under a revolving cutter 27 which divides the film into sections, compresses them and carries them away, the sections being ejected therefrom by the action of an air stream. Liquid gelatine is stored in a container 1 warmed as by steam coils 2 and is fed to an ejector 11 which comprises an outer casing 14 and a tubular valve 15 having slots 17, 16 respectively, adapted to register to allow gelatine to flow on to the plate 3. The required thickness of the film is determined by the height of the container 1 and the dimensions of the slots 16, 17, and flanges 19 are provided on the plate 3 to prevent overflow. The ejector may be heated as by a tube 20 preferably connected to the coils 2. Valves may be provided to cut off the gelatine supply and also to feed steam through the ejector and connections for cleaning. The plate 3 is cooled by refrigerating coils 25 and travels round a predetermined distance until the film sets. The cutter may comprise a rotary drum 27 having peripheral blades 29 and longitudinal blades 28, Fig. 3, mounted on side plates, the drum being mounted on a fixed shaft 31 and driven by gearing from a shaft which also drives gearing to rotate the plate 3. The cutter may be driven independently. The blades cut out tablets 33, compress the material and carry it off the plate 3. A scraper may be provided to facilitate removing the cut film from the plate. The tablets 33 are ejected from the cutter on to a moving band 36 by an air stream from a nozzle 34. The shaft 31 may be hollow so as to form an air-supply pipe 35. The band 36 may be of wire mesh to facilitate drying. For cutting continuous strips, the blades 28 may be omitted. The depth of cut may be varied, as by vertical adjustment of the cutter, so that, if desired, the film is only sectionalized leaving a thin connecting base. For large machines the cutter may be of frustroconical form. The plate may be engraved or embossed so as to leave an impression on the base of the film, or separate means may be used for this purpose. The ejector may have a number of slots so as to cast liquid material in a corresponding number of compartments formed by ribs on the plate 3, thus directly setting the material in strips, so that only the blades 28 are required for cutting. Instead of a revolving annular plate 3, an endless conveyer or a rotatable drum may be used. Cutting may also be effected by a rolling action of the drum 27. Pressure may be applied to the cutter and the blades may be heated to facilitate division. The cutter may be driven independently of the plate 3.