baber/WOPTO huggingface dataset:
Patent GB-342623-A (GB)
Title: Improved means for the fixing or jointing of pipes
IPC: F16L19/06
Filed: 1930-05-13
Abstract: 342,623. Pipe joints. LUNDBORG, B. H., 7, Hantverkaregatan, Stockholm. May 13, 1930, No. 14749. [Class 99 (i).] A pipe joint comprises a pair of interengaging conical sleeves 4, 5, flared at the wider end and fitting the pipe at the narrower end, the sleeves being pressed on to the pipe by relative axial movement of annular members 2, 3 one of which engages the outer surfaces of sleeve 5, the other engaging the flared end or inner surface of sleeve 4. In the arrangement shown in Fig. 3 for joining two pipes, the flared ends of the sleeves 4 bear on a ring 6, the spigot and socket members 2, 3 engaging the outer surface of the sleeves 5. In other modifications the ring may engage the inner or outer surface of the sleeves and a single sleeve may be used at each joint.
Patent GB-1508794-A (GB)
Title: Protection of toner images
IPC: G03G15/20
Filed: 1974-04-03
Abstract: 1508794 Fixing toner images AGFAGEVAEBT 25 March 1975 [3 April 1974] 14803/74 Heading B6C A method for protecting a toner-image on a support (preferably a resin or resin-containing support) comprises applying thereto, as a coating, a liquid fixing composition which comprises a solution in a wholly or mainly aliphatic hydrocarbon liquid of a copolymer of (A) at least one monomer selected from C 1 -C 5  aliphatic alcohol methacrylates and vinyltoluene, (B) at least one C 7 -C 24  aliphatic alcohol acrylate or methacrylate, and optionally (C) at least one monomer selected from C 1 -C 5  aliphatic alcohol acrylates and vinyl esters of C 1 -C 11  aliphatic acids. The fixing composition may also contain dispersed graft copolymer particles.
Patent GB-1126734-A (GB)
Title: Articles of furniture upholstery supports and a method of mounting said supports
Inventor: DAMIANO CHARLES
IPC: A47C23/26
Filed: 1965-04-09
Abstract: 1,126,734. Upholstery. PIRELLI Ltd. 1 March, 1966 [9 April, 1965], No. 15073/65. Heading A4M. A resilient platform E is anchored to an intermediate portion of a rod B having its ends engaged in axially aligned passageways G formed in a pair of frame elements A. As shown, a clip D embedded in the platform E is secured to the rod B by a separate, doubled hooked member C. In alternative embodiments, the clip is of triangular or U-shape and is formed with hooked free ends which engage the rod B directly. The passageway G may be plugged, at F, to retain the rod B.
Patent GB-822244-A (GB)
Title: Improvements in or relating to drying ovens
Inventor: RUFF RICHARD JOHN
IPC: F26B13/00
Filed: 1957-05-13
Abstract: 822,244. Drying material in long lengths. CATALYTIC COMBUSTION CORPORATION. May 13, 1957, No: 15107/57. Class 34(1) [Also in Group XII] In a drying oven hot gases are discharged through downwardly directed nozzles on to upwardly moving coated materials. In the drying of coated wire 21, Fig. 2, hot gases from a fan 24 are blown through ducts 44...46 controlled by externally manipulated dampers 47, 49, Fig. 1. The resulting fume and vapour laden gases are withdrawn from the drying chamber 20 and induced to flow through a firebox 51 and catalytic oxidation unit 56 before re-entering the fan. Gaseous or liquid fuel burners 52 are located in the firebox and air is added to the gases through a duct 58 whilst excess gases are discharged through a duct 60. When the oven is at operational temperature the burners may be shut down-e.g., automatically by an electrical system depending upon a thermostat 73, Fig. 3, in the fan discharge duct-the necessary heat being obtained from the catalytic oxidation of the fume laden gases. The catalytic unit 56b is pivotably mounted to enable a variable amount of gases to be by-passed if desired. In a modified catalytic arrangement, the unit is fixed but gases may be by-passed under damper control.
Patent GB-812710-A (GB)
Title: Cartons and like containers
IPC: B65D5/26
Filed: 1956-05-15
Abstract: 812,710. Cartons. MERCK & CO. Inc. May 15, 1956 [May 27, 1955], No. 1S141/66. Class 18. A triangular prismatic carton has extensions 11, 11<SP>1</SP>, 9, 9<SP>1</SP> of end walls 8, 8<SP>1</SP> which interlock beneath a side wall 3, and lie beneath a side wall 2 respectively, the wall 2 having a flap 15 the end of which enters a slot 6 on the fold line between the side 3 and the base. The flap 15 overlies the side 3.
Patent GB-600809-A (GB)
Title: Improvements in radio receiver circuits
IPC: H03G3/26
Filed: 1944-08-09
Abstract: 600,809. Automatic noise suppression. BURGESS, A. F. (Zenith Radio Corporation). Aug. 9, 1944, No. 15143. [Class 40 (v)] In a radio receiver for signals, other than amplitude-modulated signals, amplitude-limiting means are used, in addition, to derive a control voltage to render the output circuit inoperative when the signal amplitude is below a predetermined' value, and to provide a reduction of the signal output from the limiter under these conditions. As shown, in a frequency modulation. receiver, a first limiting valve stage 6 feeds a second limiter 7, through condenser 22, followed by a discriminator circuit 25 .. 31, including diode rectifiers 8, the output from which feeds an audio amplifier 9. The control grid 21 of valve 7 is connected through a, high resistance 52 to the positive side of the H.T. source 18, its anode circuit includes a resistance 41 and its cathode is earthed. In the absence of a carrier at grid 21 its potential is slightly more positive than the cathode and a large anode current flows through resistance 41 reducing the positive potential of its anode end, 42. This point is connected to a potential divider and filter 43, 44, 45, 51, a portion of the voltage across which is applied to the grid of the audio amplifier 9 whose cathode 47 is maintained at a pre-set positive potential by the potential divider 48 ... 50 of which resistance 49 is variable. In the condition described, the valve 9 is biassed to cut-off and the valve 7 also attenuates the signal passed to the discriminator. When a signal of greater than a predetermined amplitude is applied to grid 21 of valve 7, rectification sends the grid negative and point 42 becomes more positive to render the valve 9 operative. The muting arrangement may be disabled by closing switch 53 which connects grid 32 to its cathode through resistance 46. A diode 54 is provided to prevent grid 32 from going more positive than an adjustable point on resistance 49. In modifications, the muting voltage is applied to the anode and/or screen grid of the first audio amplifier, Fig. 4 (not shown), or operates a relay directly or through an amplifier to short-circuit the loud-speaker and energize or de-energize a signal lamp, Figs. 5, 6 (not shown). Specification 552,943 is referred to.
Patent GB-993477-A (GB)
Title: Improvements in road danger lamps
Inventor: WIGGETT ARTHUR NELSON
IPC: F21L4/00
Filed: 1963-04-18
Abstract: 993,477. Locks. ALEXANDER KENYON & CO. Ltd. March 23, 1964 [April 18, 1963], No. 15230/63. Heading E2A. [Also in Division F4] The casing a<SP>1</SP> of a road danger lamp is hinged along one side to the base a and is locked in the closed position by a lever B pivoted on one side of the casing and adapted to engage behind a lug a<SP>2</SP> on the base, a multisided recess being formed in the pivot to receive a key D for partially rotating the lever. In another embodiment the casing is fixed to the base and one side is hinged to form a door, the lever being pivoted on the door to engage behind a lug on the adjacent side.
Patent GB-291953-A (GB)
Title: Improvements in reciprocating steam engines combined with exhaust steam turbines adapted for being disconnected from the reciprocating engine
IPC: F01D15/02
Filed: 1927-06-08
Abstract: 291,953. Hansen, P. June 8, 1927. Driving arrangements for screw propellers. - Plant comprising a reciprocating steam engine and a steam turbine supplied with exhaust steam therefrom and driving the same shaft through a clutch is provided with mechanism connected with the reciprocating engine stop valve which disengages the clutch and shuts the steam valve of the turbine when the stop valve is closed. The main stop valve b<1>, Fig. 3, is actuated by a lever f<1> which also carries a trip arm i' that is adapted to engage a hooked arm # pivoted to an arm x, Figs. 1, 2, on the boss of which are notches y. The notches are adapted to engage teeth z on a bush u which is feathered so as to be, slidable in the valve case a and is screwed on a valve spindle f. The spindle f carries a double-seated valve g controlling exhaust steam which enters at c from the reciprocating engine and passes either to the turbine at l or condenser at e. The spindle is spring biassed at p<1> and carries a fixed disc p and free disc o with a spring q between them. The spring is of such strength that when the valve g is in its left position opening up communication to the turbine the disc o is held on the seat m but when the valve g is on its seat i the disc o is forced off the seat m. As shown the turbine is cut off. When the reciprocating engine stop valve b<1> is opened by moving the lever f<1> down, the hand-wheel s is rotated and the bush u is displaced until the hub of the lever x is free to rotate. Movement of the bush u actuates a lever r' which disconnects the clutch gear and the turbine is idly rotated. The arm x is then pulled down for the detent # to engage the trip i, and the notches y and teeth z are placed so as to prevent longitudinal movement of the bush u. Further rotation of the handwheel s then results in a movement of the spindle to open the valve g and feed the turbine and to close the disc o to shut off the direct flow to the condenser. When the lever f<1> is moved up to close the main stop valve, the lever # is tripped, lever x moves up, and bush and spindle move to the right to shut off the valve g. The turbine may have a governor which is capable of moving the detent # on the speed exceeding a predetermined maximum. In large engines the spindle f and lever x may be moved by power means.
Patent GB-817759-A (GB)
Title: Improvements relating to radiation monitoring devices
Inventor: ALLENDEN DENNIS
IPC: G01T1/14
Filed: 1955-05-26
Abstract: 817,759. Transistor circuits; pulse generating circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 28, 1956 [May 26, 1955], No. 15254/55. Class 40 (6). [Also in Group XL (b)] A device for determining when an accumulated dose of radiation has reached a predetermined level consists of an ionisation chamber IC coupled to a valve V1 controlling the frequency of oscillation of an audio oscillator TR1. The chamber IC is connected to the grid of the valve V1 and is given an initial charge by the application of a potential to terminals a+ and a -. These terminals are subsequently connected together thus rendering V1 non-conductive. Junction transistor TR1 is arranged to form a blocking oscillator and with V1 non-conductive operates at a very low frequency to produce an audible clicking in the earphone P connected to transformer winding L3. When sufficient radiation has fallen on chamber IC to discharge it to a point when V1 conducts bias current flows in the transistor base circuit causing an increased audio-frequency tone to be heard. To speed up the change from the non-conductive to the conductive state of valve V1 an additional transistor TR2 is provided. This is normally biased almost to cut-off and the screen grid of V1 is thus at a low potential. Commencement of anode current flow for V1 lowers the base potential of TR2 increasing the current flowing in R3 and so raising the screen-grid potential of V1. The action is cumulative and results in a sharp change in audio frequency. In an alternative circuit (Fig. 2, not shown) V1 is replaced by a tetrode valve and the inner electrode of the chamber is connected to the valve's second grid. The collector of TR2 is connected to the valve grid and R3 is omitted. In this embodiment the grid and cathode of the valve form a diode which, when it conducts, alters the oscillator frequency. If it is desired to measure the residual voltage across the chamber at any time an adjustable calibrated source of potential may be connected across the terminals a+ and a - and the potential required to initiate a frequency change in the indicator circuit determined.
Patent GB-927236-A (GB)
Title: Improvements in or relating to the curing and/or drying of articles containing moisture
IPC: F26B3/00
Filed: 1959-05-05
Abstract: 927,236. Drying methods and apparatus. E. MERCER. June 20, 1960 [May 5, 1959], No. 15297/59. Class 34 (2). Articles, e.g. rubber fabric-lined gloves, are dried or cured in an atmosphere made humid by the presence of steam or water-laden air which is introduced from an inlet 17, Fig. 1, into an inner shell 10 of an insulated and heated oven 12 through a perforated bottom 11. The inner shell is externally heated by gases heated by gas burners (not shown) introduced into the oven through an inlet 19 by a fan 20, and the internal atmosphere of the inner shell is controlled by a valve-controlled outlet 21, humidity indicator H, temperature gauge T.G. and thermocouples T1, T2 to control the gas burners so as to maintain the temperature within the oven constant. A manually-operated outlet 18 is provided to drain any water accumulating in the oven. In a modification, the hot gas inlet 19, Fig. 4, extends to within the inner shell and terminates in a flared mouth 23 in which is disposed a hollow ring-like steam inlet 24. Orifices 25 in the inlet 19 at the point where the inlet passes through the heating fluid space 14 are closed by manually-operable shutters 26 to effect recirculation of the hot gases through the oven. The atmosphere may be made humid by substituting for the steam water which is introduced by a prefilled static trough in the oven, by supplying water to a suitable receptacle which is maintained at a desired level or through which water flows continuously. Specification 927,235 is referred to.
Patent GB-1027679-A (GB)
Title: Process for the production of phosphorus trioxide
Inventor: THILO ERICH
IPC: C01B25/12
Filed: 1963-04-18
Abstract: <PICT:1027679/C1/1> Phosphorus trioxide (P4O6) is produced from colourless phosphorus in a continuous reduced pressure process wherein colourless phosphorus after ignition with atmospheric oxygen is reacted with a current of nitrous oxide at a temperature between 400 DEG  and 675 DEG  C. and under a pressure of 10 to 120 mm. Hg. The phosphorus trioxide is isolated by cooling the gaseous mixture obtained to 0 DEG  to 30 DEG  C.  In the embodiment of the drawing, molten phosphorus is introduced into vessel 1 through inlet 3 and air is drawn through the apparatus from 3 until the phosphorus ignites. The air supply is cut off and nitrous oxide is introduced through 4 at such a rate that the reaction temperature is maintained at 550 DEG to 600 DEG  C.  The phosphorus trioxide is collected in cooled separators 6.
Patent GB-499253-A (GB)
Title: Improvements in or relating to the operating tabs of sliding fasteners
IPC: A44B19/26
Filed: 1938-05-23
Abstract: 499,253. Sliding - fastener tabs ; jewels. CARTIER SOC. ANON. May 23, 1938, No. 15357. Convention date, July 21, 1937. [Class 43] [Also in Group XXV] A jewel to replace the ordinary operating tab of sliding fasteners comprises a mount or frame,.preferably ornamented or bearing precious stones, inside which is fitted a pair of jaws which can be opened or closed by suitable mechanism to release or grasp the operating slider of the fastener. In one form, Figs. 2 and 4, the jaws 8 are rotated on pivots 6 by nuts 10 on a right- and left-handed screw 11 turned by a milled roller 13 which projects either on both faces, or on the underface only of the jewel. A U-shaped lever 16 engages with the roller 13 to lock it in position. The levers may also be of the tong type, as shown in Fig. 7. In an alternative form, Fig. 10, one jaw 22 is fixed and the other jaw 23 is adjusted by means of a lever 25, movable by hand over a rack with teeth 28, 29, 30, and kept in engagement with the appropriate tooth by a locking bar 32 pivoting about a pin 31.
Patent GB-1309201-A (GB)
Title: Material container sorting apparatus and method
IPC: B65G47/49
Filed: 1971-05-18
Abstract: 1309201 Transferring articles between endless conveyers F E HELFAND and M B BAER 18 May 1971 [17 July 1970] 15436/71 Heading B8A [Also in Division G4] Material containers are sorted in accordance with signals derived from signals obtained by sensing alphanumeric codes on the containers by means of an optical-to-electric converter as the containers are being transported on a conveyer. Items of luggage at an airport bear labels printed with the alphanumeric codes which are read by a modified vidicon scanner, the alphanumeric characters being recognized in a first mini-computer, the output of which is supplied to a second mini-computer where it is stored, processed, decoded into a sorting code and compared with a preprogrammed repertoire to produce a timed command signal to control diversion (if appropriate) of the container on to a branch conveyer. The diversion is accomplished by raising and lowering vertical sheetlike diversion members, the transfer section including rollers (some of which may be powerdriven). Arrival of the container at the scanning station, and exit of it from the main conveyer are detected photoelectrically to prepare and reset the circuitry. The command signals may also cause weighing of the containers, and storage and print-out of the label information.
Patent GB-335170-A (GB)
Title: Improvements in coupler valves
IPC: B05B1/30
Filed: 1929-05-17
Abstract: 335,170. Thompson Manufacturing Co. Oct. 6, 1928, [Convention date]. Valves actuated indirectly.-A coupling device for fluid systems, e.g. a sprinkler system, comprising a fixed underground part 11, 13, 21, and 22, and a detachable nozzle and valve-operating part 60 - - 62 has the parts arranged so that leakage during the coupling and uncoupling of the sprinkler unit is prevented. The coupling device comprises a casing 21 attached to the supply conduit 11, 13, a screwed closure plug 42 with washer 46, a plate valve seat 28, a valve 31, and the sprinkler head 60, 61, 62. In attaching the head, the skirt 71 slides and rotates over the fixed part 22, and the tongue 67 screws back the plug 42 which, when the head has started being coupled, opens the valve 31 by means of the depending pin 50, thereby establishing flow through the passages 25 and grooves in the threaded part 27, and the passage 66 into the coupler head, as shown by the arrows. During coupling and uncoupling of the head, leakage is avoided, since the valve 31 is not opened until the threaded part 64 has entered the threaded opening 26 and is closed before the part 64 leaves the said opening 26.
Patent GB-1531215-A (GB)
Title: Squelch circuit
IPC: H04N5/91
Filed: 1975-10-23
Abstract: 1531215 Video disc players RCA CORPORATION 23 Oct 1975 [18 Nov 1974] 15552/78 Divided out of 1531214 Heading G5R In a video disc playback apparatus, a signal from player control circuits 111 (to raise the stylus from the playback position) initiates a squelch signal at 70 to block the output of video signals at 57, the initiation occurring when transistor 112 is blocked so taking the outputs of solenoids 113, 117 to a more positive potential and making transistor 80 conductive. When the player control circuit causes the stylus to be lowered, transistor 112 becomes conducting- making the anode of diode 121 negative so that, after a delay due to the charging of capacitor 83 which is sufficient to allow stabilization of the player circuitry, the squelch signal is terminated. During the play mode, squelch signals are generated in response to signals passing through diode 78 which indicate that a defect lasting more than approximately 50 ms. has been detected (by the potential on capacitor 77). During short duration defects the video signal is replaced by that from a preceding line.
Patent GB-644129-A (GB)
Title: Temperature control apparatus
IPC: F24F11/76
Filed: 1947-06-12
Abstract: 644,129. Automatic temperature-control systems. VAPOR HEATING CORPORATION. June 12, 1947, No. 15554. Convention date, June 15, 1946. [Class 38 (iv)] In a temperature-control apparatus employing two thermostats E and F, controlling the temperature of a space D between upper and lower limits respectively, each has an auxiliary heater G, H, the energization circuit to the heater G being broken by the action of either thermostat whereas the circuit to the heater H is continuously energized, the heating current thereto being increased upon de-energization of the heater G. The thermostat E is arranged so that above a predetermined temperature a relay El is de-energized so as to complete a circuit to the field winding 14 of a motor K causing it to operate in a sense to close a valve 10 controlling a supply of hot air. At the same time the energizing circuit of the auxiliary heater G is broken so that the temperature of the thermostat falls and the current previously passing through the heater G is transferred to the heater H to ensure that the contacts of the thermostat F remain closed and that the relay F<SP>1</SP> remains de-energized. Consequently a step-by-step control is effected by means of the thermostat E. When the temperature falls to a value such that the heater G is no longer able to cause deenergization of the relay E<SP>1</SP>, the contacts of thermostat F break, causing energization of a relay F<SP>1</SP> and consequent energization of the motor K in the reverse direction to open the valve 10. Energization of the relay F<SP>1</SP> causes the heater G to be de-energized and the main circuit of the heater H to be completed so that the temperature of the thermostat rises. A further step-by-step control is thus obtained by means of the thermostat F until the additional heat of the heater H is no longer required to cause closure of the thermostat contacts. The temperature control is then passed back to the thermostat E. Both auxiliary heaters have a supply circuit through a variable resistance I, equal amounts of current being supplied to both heaters. When, however, the circuit to heater G is broken the full current is supplied to heater H. If the supply of hot air is insufficient to heat the space D to the required temperature an auxiliary heating device C is switched on by operation of a limit switch 34 when the valve 10 is fully open. Also energization of a further motor L controlling a supply of cool air is effected by a limit switch 27 when the valve 10 is fully closed, if the temperature of the space D is above that required.
Patent GB-797136-A (GB)
Title: Filament lead-in and impedance matching structure for a grounded grid amplifier
Inventor: SMITH HENRY RICHARD
IPC: H03F3/52
Filed: 1955-05-31
Abstract: 797,136. Discharge tube selective amplifying circuits. STANDARD ELECTRONICS CORPORATION. May 31, 1955, No. 15573/55. Class 40 (6). In a grounded grid amplifier, the input is applied over coaxial line 24, Fig. 5, to matching stubs 25, 27 with an intermediate section 10, the filaments and cathode or centre-tap of discharge tube L being maintained at the potential of the inner conductor of the line for R.F. potential while the filament leads 16, 16<SP>1</SP> pass through the hollow conductor. A plate 15 is rigidly mounted on bearing-blocks 14, Figs. 2 and 4, rotatable about the inner conductor 13. Plates 16, 16<SP>1</SP> are insulated from the plate 15 to form a capacitor element. Filament power is taken through the plates 16, 16<SP>1</SP> and flexible element 19 to connectors 18 while plate 15 is connected over a flexible strap 21 to a tap on the filament. The capacitor element and connectors are rotated about the connector 13 to facilitate removal of the discharge tube L. The tube is mounted in a structure of the type described in Specification 773,720, Fig. 1 (not shown).