baber/WOPTO huggingface dataset:
Patent GB-1346947-A (GB)
Title: Analog-to-time conversion system
IPC: H03M1/00
Filed: 1971-04-19
Abstract: 1346947 Dual ramp digital voltmeter SOLARTRON ELECTRONIC GROUP Ltd 19 April 1971 [16 March 1970 17 Aug 1970] 24204/71 Heading G4H In a dual ramp digital voltmeter in which the unknown analogue input V A  (Fig. 1) is connected during the whole measurement cycle to the non inverting input of differential amplifier 12, initially switch 17 is closed so that capacitor C is charged to a level dependent on the input V A , the switch then being opened so that the capacitor is discharged by constant current source 16. In the embodiment of Fig. 1, in which the switch 17 when closed connects the inverting amplifier input to earth via a resistor R, when the voltage at the amplifier output terminal 13 passes through the level V A  (i.e. at a time t 0 , Fig. 2, not shown) comparator 20 triggers to enable a gate 23 to pass clock pulses to counter 24. At full count of the counter 24 (that is at time t f ) bi-stable 18 is switched to open switdh 17 and discharge the capacitor, comparator 20 detecting when the amplifier output has deopped to V A  (i.e. at time t x ) to close the gate 23 and stop the count which is then decoded and displayed. In the embodiment of Fig. 3 (not shown) for converting bipolar analogue signals to digital form, the switch (17) connects the inverting amplifier input to a negative potential V B  = -NV A(FS)  where N>1 and V A(FS)  is the full scale magnitude of the input. Initially counter 24 counts up to its full count at which time the bi-stable 29 is triggered to enable the count down input 32 of the counter. The bi-stable is also switched at this time, subsequent full scale counts having no effect on it but changing the direction of count of the counter 24. Preferably N = 2 in which case for negative values of V A  the comparator is triggered before the counter counts down to zero and for positive values of V A  the comparator is triggered when the counter is counting up after having been counted down to zero.
Patent GB-1472572-A (GB)
Title: Powerassisted steering mechanisms
IPC: B62D5/24
Filed: 1974-05-31
Abstract: 1472572 Power steering systems BENDIBERICA SA 31 May 1974 [2 June 1973] 24315/74 Heading B7H  A power steering mechanism includes a spindle 23 and shaft 39 which together form a control valve for the operating fluid. The spindle is connected to the shaft by a torsion bar 47 or tube (Fig. 10, not shown) and is formed internally with two sets of longitudinal grooves 59, 60 arranged alternately, each set including three grooves, the shaft being provided with similar sets of grooves 61, 62. Radial passages 63 connect grooves 61 to shaft bore 42 which is connected to the fluid inlet 57 by a passage 55 in the spindle. Grooves 62 are connected to outlet 46 by radial and axial bores 64, 41. The grooves 59 and 60 are respectively connected to pressure chambers 14 and 13. Above the grooves 61, 62 the shaft is provided with axial splines (65) (Fig. 8, not shown) which engage with clearance in grooves 60 to limit the relative rotation of the shaft and spindle. In one embodiment (Fig. 10, not shown) provision is made for hydraulically balancing the axial forces on the shaft.
Patent GB-986672-A (GB)
Title: Improvements in high frequency circuit units
IPC: H03B7/14
Filed: 1961-07-06
Abstract: 986,672. Strip transmission line devices; semi-conductor devices. SANDERS ASSOCIATES Inc. July 6, 1961 [July 7, 1960], No. 24503/61. Headings H1K and H1W. [Also in Division H3] An electrically controllable element, e.g. a tunnel diode, transistor or a ceramic capacitor, is inserted between the conductors of a strip line. As shown in Fig. 2, a tunnel diode 42 is inserted in series with a line formed of two inner strip conductors 22, 24 and two outer ground conductors 30, 32. Staggered gaps are formed in the line conductors and the overlapping portions used as input and output electrodes. Control potentials are applied through transverse wires 44, 46. The line may be modified on either side of the diode to match the output and input impedances of the diode. In this case there will be a mismatch for output energy transmitted in the reverse direction. The controllable element may be connected in parallel with the line between line and ground conductors, e.g. a pair of diodes may be arranged on either side of a single line conductor between the line conductor and a pair of outer ground conductors. In the circuit shown in Fig. 6 a diode 94 is arranged between a pair of inner line conductors 78, 80 adapted to operate in a parallel-plate mode. In order to generate this mode, the line 78 is provided with a half-wavelength loop 78a. A further loop 78c reconverts the transmitted energy to the normal strip-line mode. The two loops may be in different strips. In order to isolate the circuit from the input and output lines for direct and low-frequency currents, the strip 78 is gapped at positions 90 and 92. In modifications where the controllable element is a ceramic capacitor, the strip conductors form two outer electrodes and a control potential is applied to a central electrode so that the capacitor comprises two series-connected portions.
Patent GB-850323-A (GB)
Title: Process and apparatus for producing carbon black
IPC: C09C1/50
Filed: 1957-08-02
Abstract: Carbon black is produced by the combustion of hydrocarbons in a furnace which comprises a cylindrical combustion reaction chamber of diameter at least equal to its depth bounded by a side wall and by parallel inlet and outlet walls normal to the side wall, the inlet wall having an opening coaxial to the chamber containing a hydrocarbon injection <PICT:0850323/III/1> conduit having a nozzle which produces a hollow spray cone the angle of which is at least 50 degrees, and, at the periphery a plurality of burners for producing flames travelling perpendicularly from the inlet wall towards the outlet wall and along the side wall across the path of the spray cone, the outlet wall having an opening disposed centrally therein leading to a cooling chamber.  In the figure the hydrocarbon inlet conduit 23 passes through an opening 15 in the inlet wall 13 of the combustion chamber 12 which has a depth of 1/2 -1 x its diameter. Conduit 23 terminates in a nozzle 27 fitted with a perforated disc for producing a hollow spray cone of angle at least 50 DEG C. say 50-150 DEG C.  A plurality of burners 14 supplied with hydrocarbon fuel and air by 22 are arranged at the extremities of the inlet wall 13.  Orifice 16 which preferably has a cross-sectional area of 3-10% the area of the outlet wall 26 leads directly into quenching chamber 17 which is preferably cylindrical and has a diameter less than that of the combustion reaction chamber but greater than that of the outlet 16, and has a volume 10-50% that of the combustion chamber 12 and is provided with openings 24 near the outlet orifice, having pipes with spray heads 25 to spray cooling fluid into the stream of carbon laden gases, quenching them within a period of 0.005-0.01 seconds.  Cooled reaction products pass from 17 through 18 to a carbon collector. In operation a combustible hydrocarbon e.g. a liquid highly unsaturated or aromatic substance, is sprayed into the combustion chamber through 27 while fuel e.g. a hydrocarbon oil or gas for example natural gas is introduced through burners 14, with sufficient air to permit complete combustion of the fuel and at least half of the hydrocarbon.  The rates of flow of hydrocarbon, fuel and air are regulated so as to provide a positive pressure of at least 20 inches of water in the combustion chamber and to maintain an outlet flow from the chamber of 300-700 cu.ft./cu. foot/min.  Under these conditions the hydrocarbon is decomposed within the chamber within a period of 0.013-0.03 seconds. Specification 673,155 is referred to.
Patent GB-1340996-A (GB)
Title: Hoisting devices comprising climbing jacks
IPC: E02B17/08
Filed: 1972-05-25
Abstract: 1340996 Hoisting devices including climbing jacks PAUL ANDERSON INDUSTRIER AB 25 May 1972 [28 May 1971] 24594/72 Heading B8J A hoisting device for a load 4 comprises two climbing jacks 3 arranged to climb climbing poles 2 each stayed by a respective mast 1 and is characterized in that, by arranging for the poles 2 to be longitudinally displaceably mounted on the masts 1, no vertical forces are transmitted to the masts 1. As shown the load 4 is supported on a beam connecting the two jacks 3 and the bases 6 of the masts 1 have levelling devices 5. Each mast may stay climbing poles for two cooperating climbing jacks, Fig. 4 (not shown).
Patent GB-645545-A (GB)
Title: Improvements in or relating to shoes, sandals and other footwear
Inventor: DANIELIUS EDGARAS
IPC: A43B3/24
Filed: 1948-09-20
Abstract: 645,545. Shoes with detachable uppers. JONES & MALYON, Ltd, Sept. 20, 1948, No. 24630. '[Class 17(ii)] A sole for a shoe with a detachable upper has a groove G formed between the insole 3 and the base part 1 in which retainer means comprising a thickening of the edge of the upper is secured. The retainer means may be a strip of metal or other material secured to the edge of the upper which is slid into the groove until holes in it engage pins 6, 7. A part of the insole, preferably the toe or heel, is hinged to the remainder to allow the upper retainer means to be removed but which when secured by a fastening 4, 5 prevents withdrawal of the retainer means. Specification 629,163 is referred to.
Patent GB-1042019-A (GB)
Title: Improvements in picks, pick-boxes and cutter drums for cutter drum type mining machines
Inventor: WEBSTER FREDERICK
IPC: E21C35/187
Filed: 1964-06-13
Abstract: 1,042,019. Mineral-mining pick securing means. GREENSIDE MACHINE CO. Ltd. May 18, 1965 [June 13, 1964], No. 24638/64. Heading E1F. A rectangular shanked pick is secured in a socket of complementary section in a pick box of rectangular section by a pin passing through aligned bores in a pair of the opposed walls of the box and the shank, and the pin is secured in the box by a dowel extending through aligned bores in one of said walls and the pin at right angles to the axis of the pin.
Patent GB-1263303-A (GB)
Title: Interlocking joints for structural framing members
IPC: F16B37/04
Filed: 1969-05-14
Abstract: 1,263,303. Joining structural members. STREATER INDUSTRIES Inc. 14 May, 1969 [7 June, 1968], No. 24695/69. Heading E1K. [Also in Division A4] A right angled joint comprises a first member I having a flat wall 3 with spaced openings 13, 20, a second member 2 with projecting tenons 30 engageable in respective openings, and locking means 40 insertable into one opening. To assemble the joint, tenons 30 are respectively positioned above opening 20 and through opening 13 and lowered so that neck portions 32 enter opening 20 and portion 18 and shoulders 33, 35 are positioned within member 1. The locking means comprises a plate 40 having an inclined portion (42) located in portion 17 of opening 13 and a flat portion (41) held in a spring clip (51), a screw 55 threaded in the clip and abutting wall 27 of member 2.
Patent GB-1350098-A (GB)
Title: Spray drying
IPC: C13B30/02
Filed: 1971-04-19
Abstract: 1350098 Evaporators; spray drying; gas/ liquid/solid contact ASIZAWA TEKKO KK 19 April 1971 [1 June 1970] 24772/71 Headings B1B and B1F Powder is obtained from a solution or suspension of solid material in liquid by spraying the solution (or suspension) from nozzle 23 into a fluidized bed of particles, usually of the same composition as the solid material, maintained in chamber 1 by passing hot air (or other gas) through perforated plate 2; and introducing hot air (or other gas) through tangential nozzles 16 in cylinder 10 whereby a downward swirling movement of air is maintained at the inner side walls of the apparatus and an upward swirling movement is maintained at the centre, so that the sprayed solution coats the circulating particles and they increase in size, due to evaporation of liquid therefrom, forming large dense particles which fall to the lower part of the chamber where they are withdrawn through port 27 in plate 2. The quantity of secondary air introduced through nozzles 16 is preferably more than 30% of the primary air introduced through plate 2. The velocity of the secondary air is about 35 m/sec. or greater. The product powder flows down conduit 28 to hopper 31, and is discharged by rotary valve 32. Air is supplied to hopper 31 through valve 33. Fine particles separate from the air rising in cylinder 10; and the air is then withdrawn from the top of the apparatus by suction device 20. The chamber 1 has double walls and heating medium, e.g. water at 85‹C, may be circulated in the jacket 37. An example relates to the production of granular sugar from sugar solution. The production of ceramic powders is referred to, as in the use of the apparatus for re-acting a gas with a powder/liquid mixture.
Patent GB-143784-A (GB)
Title: Improvements in tobacco pipes
IPC: A24F1/00
Filed: 1919-10-10
Abstract: 143,784. Ellis, W. B. Oct. 10, 1919. Tobacco pipes. - Concentric radiating fins c are formed on the bowl a and longitudinal radial fins on the stem b to cool the smoke, and the part b<1> below the bowl is left plain to absorb nicotine.
Patent GB-407319-A (GB)
Title: Improvements in or relating to multi circuit lamp sockets or like fittings
IPC: H01R33/92
Filed: 1932-09-06
Abstract: 407,319. Snap-action switches. KRAGELOH, P., Dahlerbruck, Westphalia, Germany. Sept. 6, 1932, Nos. 24860 and 36123. [Class 38 (v).] In multi-circuit lamp sockets and like fittings comprising two or more sockets or holders controlled individually by separate switches, the switches are operated by pivoted levers, the angular positions of which, in known manner, indicate their "on" and " off " condition. The fitting comprises a hollow insulating body portion b, Fig. 2, which may be closed by an insulating cover-piece a carrying a transverse bayonetjoint pin g, or an internally screw-threaded socket C, Fig. 5, for attachment to a conduit may be secured to a cover plate A by a flanged screw-threaded collar B. Alternatively the device may be attached directly to flexible leads by wedges H<1>, H<2>, Fig. 6, enclosed within a conical nipple G which is screwed on to a cap F attached to a cover plate A. The two switch levers x<1>, Fig. 4, made of insulating material with cam-shaped nose pieces, are mounted upon a pivot pin n, with the nose pieces engaging between the side arms of their respective switch contact heads O<1>, O<2> which are also pivoted on the pin n. A snap action is provided by helical springs surrounding the contact arms and held in compression between the enlarged contact-making heads and the cammed nose-pieces of the operating-levers. A spring-contact finger t, Fig. 2, common to both contact-heads O<1>, O<2> is connected by a strip q to one contact face Z<2> of the plug portion a of the device, while contact plunger p<2> of socket c and plunger p<3> of socket e are both connected by a strip k to contact face Z<1>. A contact finger v is connected to the plunger p<1> of socket c, the other plunger of socket e being connected to a contact finger u.
Patent GB-586401-A (GB)
Title: Improvements in and relating to wire stranding, rope and cable making machines
IPC: D07B7/16
Filed: 1944-12-13
Abstract: 586,401. Machines for making ropes &c. LARMUTH, A., and LARMUTH, L. J. Dec. 13, 1944, No. 24988. [Class 109] A wire stranding, rope or cable making machine having a rotatable tubular frame 8 with openings 14 in its walls, is provided with a track 9 below its frame and means for raising or lowering the bobbins 4 into or out of position. The bobbin 4 is rolled along the track 9 and is located in position by stops 10, in the form of slots ; above transverse members 12 connected together by a plate 13, the track having slots 11 to allow the transverse members 12 to pass therethrough. A hydraulic or like jack 15 is positioned below the plate 13 to impart an upward movement to the transverse members which lift the bobbin into its cradle 7. In addition, a track portion 18 may be provided at right angles to the main track 9 to enable a bobbin to be speedily inserted or removed, the transverse members being rotatably mounted in order to position the bobbin. A jack and transverse members may be situated beneath each bobbin position or one jack or jack provided with transverse members may traverse the length of the track and operate beneath each position. An automatic switch 17 is integral with the jack to prevent the operation of the machine when the lifting mechanism is in use.
Patent GB-249930-A (GB)
Abstract: 249,930. Macdonald, D.B. Jan. 3, 1925. Uppers, protecting during lasting or the like.- The uppers or other parts of boots and shoes liable to be soiled by grease, oil, wax, &c. during manufacture are protected by a film, coating or skin impervious to these agents. The substance forming the protective coating is applied in the form of a solution, liquid, or semi-liquid preparation and is painted or rubbed on and when desired can be wiped, washed, or rubbed off. A suitable solution would be of gelatin, glue, albumens, gums such as tragacanth, linseed, quince, or certain mosses or seaweeds giving a gelatinous solution in water. Celluloid or cellulose ester in a suitable solvent or rubber solution may be used. The water solution may be removed by a wet sponge. The celluloid rubber or the like may be removed by solvents such as acetone or benzole, or the skins may be allowed to remain permanently. The solution or preparation may be coloured or not.
Patent GB-331419-A (GB)
Title: An improved shuttle checking device for looms with weft change motions
IPC: D03D49/52
Filed: 1929-08-16
Abstract: 331,419. Grossenhainer Webstuhlund Maschinen-Fabrik Akt.-Ges. Jan. 26, 1929, [Convention date]. Checking shuttles and pickers.-In shuttle checking devices in which the picker is caught by a tensioned buffer belt and wherein a second tensioning belt 5 is secured to a lever controlled by the movement of the lay, the lever 11 is mounted on an horizontal axis 9 and carries a roller 7 in engagement with a ramp 13 on the loom frame. The lever 11 is made in two parts 8, 8<1> with a give-way connection 12, 10. The other end of the belt 5 is secured to a limb 4 of a U-shaped member pivoted at 3 on the lay and having its other limb 2 for engagement by the picker 1. In operation, the impact of the shuttle brings the roller 7 into engagement with the ramp 13, which, during shuttle change, the belt 5 is relaxed so that the picker is withdrawn from the shuttle by the return spring of the picking motion.
Patent GB-423845-A (GB)
Title: Improvements in typewriting machines
IPC: B41J7/22
Filed: 1934-08-31
Abstract: 423,845. Typewriters. BURGESS, A. F., 10, New Court, Lincoln's Inn, London.- (Smith & Corona Typewriters, Inc., L. C. ; 701, East Washington Street, Syracuse, New York, U.S.A.) Aug. 31, 1934, No. 25102. [Class 100 (iv)] Type - lever machines paper - carriages; sound-deadening cases.-To deaden sound in a type-lever or other machine, a set of keycontrolled types and a platen are supported as a unit, for universal floating or vibratory movement relatively to the main frame. In the machine shown in Figs. 1 and 3, an auxiliary frame F supporting type-levers 42 and a carriage 91 is resiliently suspended in the main frame M, and the carriage is so constructed that vibrations caused by impact of the types on the platen 45, or by arrest of the carriage, are absorbed before reaching the auxiliary frame. The main frame M comprises corner posts 10, 11 connected by side and cross bars 12, 13, 14, and combs 15, 16 for the key-levers 54, 56, rubber feet 25 being secured to lugs 27 on the corner posts. The auxiliary frame F comprises a horizontal plate 30 with depending arms 31. Blocks 34 at the ends of the plate 30 rest on pads 36 supported by lugs 28 on the posts 11, screws 39 being threaded into the lugs and having their heads arranged in pads 38 in the blocks. The arms 31 abut frictionally on pads 40 mounted in arms 29 on the posts 11. The pads are cylindrical and have necks for engaging key-hole slots 41 in the arms 29. The pads 36, 38, 40 preferably consist of soft rubber and are not cemented or vulcanized to the associated parts. The type-levers are mounted in a shaft segment 44 and are connected by links 53, 55 and sub-levers 52 to the key-levers 54, the sub-levers being mounted in a segment 50 secured to brackets 32 on the cams 31. The segment 44 is connected at the bottom to a rock-shaft 64 which is mounted in the segment 50 and is operated by the shift-key levers 56. The segment 44 is guided at the top by means of balls 63 arranged between races 59 on the segment, and races 60 secured by screws 61 to sleeves 62 which are secured to lugs 33 on the arms 31. The segment 44 supports a type-rest 47 and an aligning-guide 73. The carriage 91 is guided by balls 86 which are arranged between races 84 on the plate 30, and races formed by the bevelled edges of spaced plates 87, 88 constituting the base of the carriage. The plates are secured together along the longitudinal edges by means of screws 90 passing through washers 89: Pads 94, preferably of soft rubber, are attached alternately to the top and bottom of the plates 88, 87 by means of cloth patches 95 which are cemented to the plates, the pads on each plate being out of contact with the other plate and the pads thereon. The members 10 .. 14, and 30 .. 33 of the main and auxiliary frames, and the segments 44, 50 are provided with sound-deadening linings 96 preferably consisting of soft-rubber pads secured by cloth patches which are cemented to the associated parts.
Patent GB-207905-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: H02P1/58
Filed: 1922-09-16
Abstract: 207,905. British Thomson-Houston Co., Ltd., Given, R. D., and Liddiard, H. W. C. Sept. 16, 1922. Systems for obtaining reciprocating motion.- A controller for one or more motors required to effect a predetermined cycle of operations is driven by a pilot motor in intermittent steps, the movements through the steps occupying definite times. and the length of the pauses depending on other conditions which may require varying times to be - fulfilled. The invention is described as applied to the operation of skip hoists which require to be filled, raised, emptied, and lowered in succession, definite times being allowed for the filling and emptying, and variable times for the raising and lowering according to the extent of movement. As indicated in Fig. 2, electric motors 3, 5 for effecting the successive operation are started and stopped by a drum controller 1 intermittently rotated by a pilot, motor 2. The time allotted for the filling and emptying operations of the motors is fixed by the length of sagmental contacts on the drum and the speed of its rotation, while the variable times of raising and lowering are provided for by arresting and re-starting the controller in positions corresponding to limit switches x, y.
Patent GB-803465-A (GB)
Title: Improved clamp for electric conductors
Inventor: PORTER FRANK
IPC: H01R4/38
Filed: 1955-09-01
Abstract: 803,465. Couplings. PORTER ELECTRICAL PRODUCTS, Ltd. Aug. 10, 1956 [Sept. 1, 1955], No. 25135/55. Addition to 746,180. Class 38 (1). The claim of the parent Specification is modified by the provision of a conductor-connecting extension which is split at 17, 18 to provide two pairs of limbs 10a<SP>1</SP>, 10b<SP>1</SP> and 10a<SP>11</SP>, 10b<SP>11</SP>, cable conductors being received in holes 15 formed between each pair of limbs and clamped by screws 21.