baber/WOPTO huggingface dataset:
Patent GB-1144897-A (GB)
Title: Method and apparatus for use when connecting together two a.c. supplies
Inventor: TOLWORTHY ROBERT THEODORE
IPC: H02J3/42
Filed: 1965-06-21
Abstract: 1,144,897. Synchronizing. ROTAX Ltd. 19 May, 1966 [21 June, 1965], No. 26081/65. Heading H2H. In a synchronizing circuit, phase displaced half wave voltages from the two supplies are applied to transistors T1-T4 which when they are simultaneously conductive, indicating phase coincidence, a capacitor C1 is shunted, rendering a transistor T5 conductive charging capacitors C2, C3. While transistors T1-T4 are not conductive, C2 is discharged rapidly through a diode D6. When C3 is charged to a voltage sufficient to render transistors T6, T7 conductive, a relay RL1 is energized which closes a contactor RL1, 10 paralleling the supplies. The charging time of capacitor C1 through transistor T5 is accurately determined by a diode clamp circuit D5, R11 during which time the capacitors C2, C3 are also charged.
Patent GB-1483062-A (GB)
Title: Apparatus for measuring the logarithmic decrement of an electric oscillation
IPC: G01R19/12
Filed: 1975-06-10
Abstract: 1483062 Measuring logarithmic decrement DEFENCE SECRETARY OF STATE FOR 10 June 1975 [12 June 1974] 26081/74 Heading G1U In measuring the logarithmic decrement of an electrical oscillation, peak values of successive half-cycles of the same polarity are detected and the times taken for a capacitor to discharge through a resistance from those valves to a predetermined level are differenced to provide a digital indication of the decrement. The oscillation is applied to a detector 1 and thence to a capacitor 2 via a switch 3 operated by relay 5 during positive half-cycles of the oscillation. During negative half-cycles the switch 3 discharges the capacitor through resistor 4. Comparator 5 produces an output while the capacitor voltage is above a reference level v. A Schmitt trigger 14 receiving the oscillation, controls the relay 15 and also triggers a monostable 16 which provides a zero level until ten seconds after the last fall in the trigger 14 output (i.e. indicating the input signal has fallen below 0.5 volts). A further trigger 20 detects when the input signal is of excessive amplitude (e.g. 15 volts) and inhibits the measuring circuitry accordingly. At the first received half-cycle, monostable 16 provides a pulse via gate 19 to set bi-stable 7 such that its Q output is high. While the capacitor voltage is above v, clock pulses 21 are thus fed to the + input of counter 22. When the capacitor voltage reaches v, monostable 6 provides a pulse which sets the Q output of bi-stable 7 high. Thus during the next negative half-cycle, pulses are fed via steering circuit 8 to the - input of counter 22. At the end of this discharge, the monostable chain 9-11 is triggered to provide two pulses separated by a short interval, the first via gate 13 reads the counter into a buffer memory 23 and the second, via gate 12 resets the counter to zero. The difference between the two times, represented by the counter content is directly proportional to the logarithmic decrement. A filter may be inserted in the input to remove any D.C. bias in the input signal, and this filter may be automatically variable to account for different oscillation frequencies. Fig. 2 (not shown).
Patent GB-241900-A (GB)
Title: An improved darning apparatus
IPC: D04B17/00
Filed: 1925-10-19
Abstract: 241,900. Blockx, J. Oct. 21, 1924, [Convention date]. Darning.-A darning appliance comprises a gang of latch needles which are reciprocated through the work and traversed to effect the feed by hand operation. A bar 10 carrying the needles 20 is reciprocated in slides 8 within a casing 1 by the movement of handles 4, 14 which are stressed apart by a spring 15. The bar 10 is slidable on rods 11 secured to a bar 12 connected to the handle 14. A rack 6 sliding in a guide 5 is secured to the frame carrying the slides 8. At each descent of the bar 12 teeth 16 thereon engage ratchet wheels 17 on a spindle 18 carrying a toothed wheel 19 which meshes with the rack so that the latter is fed one tooth. A frame 24 carrying a sliding bar 28 having two hooks 29 is mounted at the top of the casing and at each stroke a yarn is led across the hooks 29, the bar serving to close the latches of the needles as they descend. The work is held in position by the frame 24 fitting on the casing. A cone device 31 - - 33 may be employed to support the, work.
Patent GB-336729-A (GB)
Title: Improvements in sealing rings for rotary kilns and dryers
IPC: F27B7/24
Filed: 1929-08-28
Abstract: 336,729. Huron Industries, Inc., and Green, B. E. Aug. 28, 1929. Rotary kilns.-A sealing ring between a rotary kiln and its fixed end heads is so mounted that its weight tends to maintain a tight joint. In the construction shown a floating sealing-ring 38, which bears against a flange 8 bolted to the drum, is mounted by stub shafts 26 on carriages 14 running on inclined brackets 12 bolted to the wall 1. The ends 36 of the stub shafts, which take into bearings 37 on the ring, are eccentrically formed to provide a vertical adjustment for the ring, and an horizontal adjustment can be effected by means of the lock nuts 33. An angular adjustment in an horizontal plane is provided for by swivelling the ball bearing mounting 24 of the stub shafts on set screws 24, and set screws 39 on the brackets 12 allow the sealing-ring to be adjusted when desired to admit air at the joint. A flange member 6 is bolted to the end wall, and takes into the longitudinally extending portion of the sealing-ring.
Patent GB-1516507-A (GB)
Title: Process for obtaining mycobacterial fractions with anti-tumor anti-viral and adjuvant activities and pharmaceutical compositions containing them
IPC: A61K35/74
Filed: 1975-06-20
Abstract: 1516507 Mycobacterial fractions AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE (ANVAR) 20 June 1975 [20 June 1974] 26226/75 Heading ASB A mycobacterial cell fraction having antitumer, anti-viral and adjuvant activity with respect to the immunological response to antigens is produced by a process comprising subjecting a suspension of such cells in a water/organic solvent emulsion to vigorous disintegration separating the cell debris from the emulsion and also the two phases of the emulsion, and freeing from the organic solvent the solid material suspended therein or forming an interphase layer, the solid material forming the fraction desired. The cells may be from Mycobacterium tuberculosis, Mycobacterium kansasii, Mycobacterium phlei or Mycobacterium smegmatis.
Patent GB-1150522-A (GB)
Title: Hydraulic Actuator Control Valve
IPC: F15B13/02
Filed: 1967-06-07
Abstract: 1,150,522. Hydraulic motor control circuits. CESSNA AIRCRAFT CO. June 7, 1967 [Nov. 30, 1966], No. 26248/67. Heading F1P. [Also in Division F2] A double-acting hydraulic motor 60, Fig. 1 for moving an inertia load 65 and having cushioning orifices 68, 69 progressively restricted by the movable member 63 of the motor near each end of its stroke has its inlet chamber, say 88 connected to a return reservoir 18 through a by-pass line 87 when a normally closed spring-biased valve member 73 therein is opened to the position shown by the pressure rise in the exhaust chamber 99 being transmitted through a line 95 to the underside of a pilot piston 78 for lifting valve member 73 against its spring 75. The valve 73 comprises a hollow spool slidable within a sleeve 74 within a bore 70 of a valve casing 72 and has lateral ports 90 which when in register with ports 89 in sleeve 74 allow fluid to pass from by-pass line 87 into the centre passage 91 of spool 73 and past a ball check 107 into the return line 93. Supply is provided by a pump 15 delivering through a conventional combined inlet and outlet valve 40 and in the event valve 40 being reversed in mid-stroke, the resulting pressure rise in chamber 99 caused by the inertia of the load and by the supply pressure is relieved through a valve 100 to chamber 88 and prevents cavitation therein. Fixed restrictions 85 in lines 86, 92 serve to limit the maximum speed of the piston 63. In a modified control circuit a sudden increase in pressure, in say chamber 99, Fig. 4, is relieved through line 95, valve 100, a line 117, check valve 105 and line 96 to chamber 88 thus preventing cavitation therein. Cavitation is also prevented by connecting a return line 120 maintained under a low pressure to line 117 between relief valves 100, 102 whereby if pressure in either chambers 88, 99 becomes negative fluid will flow from line 120 across the appropriate check valve 103, 105 into chamber 88 or 99.
Patent GB-1441967-A (GB)
Title: Food fryer
IPC: G05D23/19
Filed: 1973-06-01
Abstract: 1441967 Liquid heating vessels; deep fat or oil fryers ELECTROWAY Ltd 24 May 1974 [1 June 1973] 26262/73 Headings F4X and F4W An electrical deep fat or oil fryer comprises a main heater and an auxiliary heater, a first sensor positioned at or immediately below a predetermined minimum fat or oil level, a heater switch responsive to the sensor whereby the auxiliary heater alone is switched on when the sensor detects a temperature below a predetermined switch-over temperature and the main heater alone is switched on when the sensor detects a temperature above the switch-over temperature, and a cut-out switch for both heaters responsive to a second sensor which detects the surface temperature of the auxiliary heater. A control thermostat responsive to a third sensor, or alternatively to the first sensor, maintains the fat or oil at a cooling temperature during normal use. The second sensor is clamped to the or a heating element of the auxiliary heater. A fat or oil level warning light is actuated by the first sensor when the auxiliary heater is operative. A further sensor or the second sensor may cause the same or a different cut-out switch to operate when the temperature of the fat or oil rises above a predetermined safety temperature. In operation, the fat or oil is heated first by the auxiliary heater and then by the main heater to the cooking temperature. If the fat or oil level falls below the first sensor, said sensor detects a temperature below the switch-over temperature. The main heater is then switched off and the auxiliary heater switched on and attains a surface temperature sufficient to cause the cut-out switch to operate before the fat or oil level drops below either heater. The switch-over temperature is between 50‹ and 150‹ C. below the cooking temperature, e.g. 100‹ C., the cut-out temperature is from 230‹ to 300‹ C., e.g. 275‹ C., and the safety temperature is from 220‹ to 230‹ C.
Patent GB-1006081-A (GB)
Title: An improved x-ray film package and dispenser therefor
Inventor: SHUFFREY ANTHONY LEIR
IPC: G03B42/04
Filed: 1960-07-28
Abstract: 1,006,081. X-ray film package. KODAK Ltd. Oct. 30, 1961 [July 28, 1960 (2)], Nos. 26296/60 and 26297/60. Heading H5R. In an X-ray film package the film is sealed between two webs of flexible opaque material, at least part of one web carrying an adhesive for securing the package to an object to be radiographed. One web may be wider than the other, the projecting edges forming flanges which carry the adhesive. The package may be in form of a roll, from which the required length is cut off. A dispenser for forming the package comprises a light-tight housing within which are supported a roll of X-ray film and two rolls of the opaque material. Guide means are provided for locating the film between two layers of the opaque material to form the package, and for guiding this package through a light-proof exit slot. The film may be sealed between the webs be various means, such as, for example, by providing the marginal edges of one web with a self-adhesive. The package may also include intensifying media, or the webs themselves may function as intensifying screens.
Patent GB-387727-A (GB)
Title: Compositions containing lithium and silicon and processes of producing the same
IPC: C22B9/10
Filed: 1931-07-04
Abstract: Compositions containing lithium and silicon, particularly for use as scavenging or purifying agents in the processes described in Specifications 387,685 and 387,725, [both in Group II], are made by heating a mixture of lithium and silicon or a silicon-bearing substance at over 500 DEG  C. in an inert atmosphere or in a high vacuum, or by allowing the vapours to react and condensing the products.  The compositions are stated to be non-deliquescent and stable at over 600 DEG  C., and may have various silicon contents, preferably 40-85 per cent.ALSO:Compositions containing lithium and silicon particularly for use as scavenging or purifying agents in the processes described in Specifications 387,685 and 387,725 are made by heating a mixture of lithium and silicon or a silicon-bearing substance at over 500 DEG  C. in an inert atmosphere or in a high vacuum, or by allowing the vapours to react and condensing the products.  The compositions are stated to be non-deliquescent and stable at over 600 DEG  C., and may have various silicon contents, preferably 40-85 per cent.  The silicon-bearing substance may be present in the charge in excess, whereby the product is embedded in for example copper silicide, iron silicide, or nickel silicide; or lithium may be present in excess so that the product is encased in lithium.
Patent GB-669673-A (GB)
Title: Improvements in moistening device
IPC: B43M5/02
Filed: 1949-10-13
Abstract: <PICT:0669673/III/1> <PICT:0669673/III/2> A postage printing machine having a casing with the front and one side wall forming a right-angled corner is characterized by a moistening device supported within the casing and having a moistening surface positioned inside this casing corner said casing having a slot through the right-angled corner in alignment with the moistening surface whereby a non-exposed moistening element becomes accessible to permit the gummed surface of an envelope flap to be drawn across the moistening surface. Referring to the drawings, the moistening unit 10 is mounted horizontally within casing 11, and comprises tube 13 in which is mounted a capillary slotted moistening element 16 comprising a vertically positioned block with a restricted capillary slot 17 supported by feet 18-18 resting on lower surface of the tube, while the upper moistening surface projects beyond the outer periphery of the tube. A slot 23 cut through the corner of the casing wall allows an envelope flap to be drawn over the moistener.  The moistening unit may be drawn out of the casing, while a handle may be used to carry the apparatus.
Patent GB-1272437-A (GB)
Title: Method of and compositions for controlling weeds
IPC: A01N41/12
Filed: 1969-05-23
Abstract: 1,272,437. Combating weeds with dithiodianilines. E. R. SQUIBB & SONS Inc. 23 May, 1969 [3 June, 1968], No. 26442/69. Heading A5E. A method of inhibiting the growth of weeds in a crop or aquatic area comprises treating the area with a herbicidal amount of at least one of 4, 4'-dithiodianiline, 2, 2'-dithiodianiline and salts thereof.
Patent GB-779727-A (GB)
Title: Improvements in control for printing roll of printing machine
IPC: B41F33/14
Filed: 1955-09-15
Abstract: 779,727. Adding machines. ELLIOT ADDRESSING MACHINE CO. Sept. 15, 1955 [Nov. 20, 1954], No. 26445/55. Class 100(2) Apparatus for tripping the drive to the printing roller of a printing machine includes a sleeve, rotatable on the shaft of the printing roller and on which is pivoted a latch member adapted to connect the sleeve to the shaft of the printing roller to drive the latter, the latch member being capable of movement out of engagement with the shaft of the printing roller on actuation by an abutment which is moved into latch engaging position in the absence of a sheet to be printed. The machine comprises a base 10 supporting adjustable guides 14, 16 for holding a supply of sheets or envelopes in a position to be engaged by a feed drum 18 provided with feeding strips 19. Printing is effected by means of stencils 22 in a holder 24. The stencils are supported on spaced, parallel track in such a manner that the lowermost stencil may be pushed along the tracks by a pusher 30 operated by a link 52. At the printing position P a supplementary impression roller 32 is splined on a shaft 34 equipped with an operating handle 36. A belt 38 serves to drive the drum 18. A segmentary printing roller 42 is mounted above the roller 32 for co-operation therewith and is slidably keyed on a shaft 44. The end portion of the shaft 44 is provided with a groove 45 and a flanged sleeve 46 is mounted on the grooved end of the shaft. By virtue of a spring pressed pin 48 both the sleeve 46 an droller 42 rotate with the shaft 44. Mounted on the sleeve 46 is the link 52. A gear 58 keyed to the shaft 34 meshes with a gear 56 rotatably mounted on the shaft 44. Mounted for rotation with the gear 56 is an arm 60 pivoted at 62 and spring biased so that a shoulder 61 on the arm 60 engages a pin 88 on the shaft 44 thus causing the shaft 44 to rotate with the gear 56. As each sheet W is fed to the printing position by the drum 18 is coact with a feeder device 81 linked to an arm 86 which actuates, on rotation in a clockwise direction as viewed in Fig. 5 an abutment 68. The abutment 68 is gravity biased towards a position in which it contacts the end of the arm 60 but on actuation about its pivot in a clockwise direction by the arm 86 it is moved out of the path of the arm 60. Thus so long as sheets are being fed to the printing position the arm 60 is allowed to remain in driving connection with the shaft 44 but should the feed fail the end of the arm 60 contacts the abutment 68 so that the shoulder 61 is disengaged from the pin 88 as shown in Fig. 5 so that although the gear 56 may continue to rotate the shaft 44 and consequently the roller 42, sleeve 46 and pusher 30 are rendered inoperative.
Patent GB-930113-A (GB)
Title: Means for optional prevention of crane hooks from swinging
Inventor: BELFORD ADAM JERROLD RHIND
IPC: B66C13/06
Filed: 1960-07-29
Abstract: 930,113. Preventing crane hooks from swinging. STEWARTS & LLOYDS Ltd. March 30, 1961 [July 29, 1960], No. 26483/60. Class 78 (4). Means are provided in an overhead travelling crane for permitting or preventing swinging of the lifting hook in at least one vertical plane. A hook d, Fig. 2, pivoted to a yoke a at # is prevented from swinging in the direction A-A when a pin e is inserted through registering holes in a bracket c and the yoke a. The pin e may be replaced by any other latching means which could be operated by any suitable means, e.g. electrical solenoid or hydraulically, and preferably by remote control. In a second embodiment the rope passes round a pulley pivoted to a hook supporting bracket. In this instance swinging is prevented by a ram-operated brake-shoe which clamps the rope to the pulley. The brake may be operated by a hand-operated screw, a manually released spring, or remote or power-operated locking devices. As shown in Fig. 4, a bar n pivoted on the crane crab k which carries lifting-rope pulleys m can be locked in one position to prevent swinging, or allowed limited movement to provide a controlled swing, by adjustable stops g. The stops g may be simple screws or remotely operated hydraulic rams. If adjustable swing is not required a catch may be provided to either lock the bar n to the crab or release it. Fig. 5 shows an arrangement in which pins e 1 , e 2  prevent swinging of the hook d in two directions at right angles to each other. Spring shackles t 1 , t 2  compensate for the fact that the arcs in which the hook swings in the two directions are not identical. To prevent swing in all directions three ropes b 3 , Fig. 6, are attached to the centres of links u having slidable ball joints engaging with yokes a 3 . The yokes a 3  may be locked to brackets c 3  on a hook-supporting plate m by pins e 3 . In the embodiment shown in Fig. 7 three pulleys z are mounted on hydraulic rams y mounted on the crane crab. When a valve w, to which all the rams are connected, is closed, the pulleys are immovable and swinging is prevented. With the valve open the pulleys may rise and fall, so long as the sum of the vertical movements is zero, and the hook can swing.
Patent GB-265614-A (GB)
Abstract: 265,614. Siemens & Halske Akt.- Ges. Feb. 6, 1926, [Convention date]. Inductances. - Leakage or stray fields in iron core loading coils are reduced by winding directly on the core 1, a number of auxiliary winding sections which have no conductive connection with the main windings and are connected in parallel with one another to form a closed mesh, or, as shown in Fig. 2, a sheath 2 of copper slotted at right-angles to the direction of the induced currents as at 3 may be employed.
Patent GB-1381689-A (GB)
Title: Hydromechanical transmission
IPC: F16H47/02
Filed: 1973-06-04
Abstract: 1381689 Variable-speed gear ORSHANSKY TRANSMISSION CORP 4 June 1973 [5 June 1972] 26609/73 Addition to 1364962 Heading F2D The hydromechanical transmission is functionally the same as that of Fig. 1, of the parent Specification 1,364,962, and is analysed by the same speed-relation diagram shown in Fig. 3, therein, but the embodiment differs in that its torque capacity is increased by a fixed ratio planetary reduction gear 303 between the input shaft 20 and the two planetary trains 311, 330; and also in that the first planetary train 311 is of the intermeshed planet type with two suns 316, 321 and no ring gear. The first sun 316 of the first train 311 and planet carrier 333 of the second 330 are alternatively connected to final output 320 by clutches 318, 335 respectively. The planetary reduction gear 303 has a permanently fixed ring gear 306, an output carrier 304, connected through a sleeve shaft 309 to the carrier 310 of the first planet gear 311 and ring 331 of the second 330, and a sun 302 connected respectively to input 20 and to the first train sun 316 by clutches 300, 336. The connected suns 321,332 of the two trains 311, 330 are mounted on a sleeve shaft 322 connected through a meshing pair 323, 324 to a fixed stroke hydraulic unit 46, fed by a variable stroke unit 24 driven at constant speed by the input shaft 20 through a meshing pair 21, 22. Operation, which is explained in Fig. 3, of the parent Specification, is as follows. A starting all hydraulic phase is produced by engaging clutches 336, 335, the former establishing a locked ratio in the two planetary trains 311, 330, and hence between the fixed stroke unit 46, together with the common suns 321, 332, and the second carrier 333 clutched to output 320 at 335. At the maximum position of the hydraulic gear the clutch 300 synchronizes, and range I in the hydromechanical phase is introduced by releasing clutch 336 and engaging 300 to provide an invariable geared reduced drive to the carrier 310. The hydraulic gear is cycled in the opposite direction, causing the suns 321, 332 to decrease in speed as the sun 316 increases to synchronism at the end of range I, whereupon hydromechanical range II is introduced by releasing clutch 335 and engaging 318 followed by re-cycling of the hydraulic gear to the maximum, at which point a final lock-up can be provided by engaging synchronously the clutch 336.