baber/WOPTO huggingface dataset:
Patent GB-908452-A (GB)
Title: Improvements in or relating to electric fuses
IPC: H01H85/046
Filed: 1960-04-14
Abstract: 908,452. Fusible cut-outs. PARMITER, HOPE & SUGDEN Ltd., and SUGDEN, E. W. April 4, 1961 [April 14, 1960], No. 13524/60. Class 38 (1). A fuse element comprises a strip or layer 20 of fusible metal supported on a member 14 consisting wholly of P.T.F.E. or, as shown, having a supporting surface 16 of P.T.F.E. The element may be made by bonding foil to the P.T.F.E. and etching away unwanted metal, or metal may be vacuum deposited on to the P.T.F.E. Connecting tabs 10, 12 are riveted to the member 14.
Patent GB-1414478-A (GB)
Title: Phosphorylation of alkylated phenols
IPC: C07F9/12
Filed: 1972-03-23
Abstract: 1414478 Phosphorylation of alkylated phenols ALBRIGHT & WILSON Ltd 22 March 1973 [23 March 1972] 13668/72 Heading C2P [Also in Division C5] Triaryl phosphate mixtures, triaryl phosphite mixtures and triaryl dichlorophosphoranetrioate mixtures are prepared by: (1) reacting a phosphorylating agent (e.g. POCl 3 , POBr 3 , P 2 O 5 , H 3 PO 4 , PCl 3 , PCl 5 ) with a composition of phenols recycled from stage 4, optionally in the presence of an additional composition of phenols, the total molar proportion of phenols to atoms of phosphorus in the phosphorylating agent being less than 3 : 1; (2) reacting the product of stage 1 with a feedstock phenol composition obtained by alkylation (including cycloalkylation) of phenol or a mixture of phenols comprising a major molar proportion of phenols having less than three alkyl carbon atoms, with a C 3-16  alkylating agent, the amount of feedstock being such that the total molar ratio of phenols in stages 1 and 2 to phosphorus atoms is at least 3 : 1; (3) separating unreacted phenols from the obtained desired product mixture; and (4) recycling the unreacted phenols to stage 1. The process may be effected batchwise, continuously or semicontinuously at 15‹- 300‹ C. in the presence of a catalyst, e.g. AlCl 3 , MgCl 2  or an alkyl titanate. In the products, preferably 20-85 mole. per cent of the aryl moieties have one or more C 3-12  alkyl or cycloalkyl substituents, e.g. isopropyl, sec-butyl or cyclohexyl. When the product comprises triaryl phosphites or triaryl dichlorophosphoranetrioates, these may be converted to triaryl phosphates by oxidation or hydrolysis respectively. The optional additional phenol composition for stage 1 may be the same or different from the feedstock composition for stage 2. Specified components of these and of the recycle composition are: o-, m- and p-isopropylphenol; 2,3-, 2,4-, 2,5- and 2,6-diisopropyl-phenol and 2,4,6- triisopropylphenol. The separation of stage 3 may be effected by distillation whereafter the triaryl products may be purified by low-pressure distillation, treatment with aqueous alkali, and/or treatment with an oxidizing agent to remove oxidizable impurities.
Patent GB-1078375-A (GB)
Title: Improvements in or relating to digital-data processing arrangements
Inventor: BEST GEOFFREY CYRIL
IPC: H03M7/12
Filed: 1965-03-31
Abstract: 1,078,375. Radix conversion. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. March 22, 1966 [March 31, 1965], No. 13757/65. Heading G4A. A digital electric radix conversion apparatus comprises a group of output registers 58, 61, 62, a matrix of gates to which digits of the input number are applied, the matrix including groups of gates corresponding to various digits of the output number, means to interrogate each gate of each of said gates in turn and means supplying to the output registers a number of pulses equal to the value of the input number at the gate being interrogated, the pulses being counted by the register to which they are supplied with carry to the next most significant register when necessary. As described, a binary number is applied in parallel to terminals 11-18 connected to AND gates 24-31. Clock pulses are passed via gates 20, 21 to either a bit tree 23 or to a counter 50 and AND gates 55-57. If the counter 50 is as shown, then gate 20 is enabled and the bit tree enables gates 24-31 in succession to interrogate each bit position of the number commencing with the least significant bit. At this time the 10 degree line of a decade tree 32 enables AND gates 33-40. If the bit position being interrogated is a " 1 " then a pulse is passed via gates 33-40 to the counter 55, the bit appearing on each input line bearing a number identical to that at the output of the appropriate gate 33-40. Thus a "1" at terminal 11 causes a pulse to be applied to flipflop 51, and a " 1 " at terminal 15 causes a pulse to be applied to flip-flops 52, 53. These pulses cause appropriate flip-flops to change state and inhibit AND gate 22 causing gate 21 to be enabled. This applies pulses to counter 50 and to whichever of the registers 58, 61, 62 is enabled by the decade tree 32, in this case register 58. The pulses continue until counter 50 is again as shown in Fig. 1 and the connections are such that the number of pulses required to reset the counter is equal to the number appearing at the input terminal 11-18, i.e. for a bit at terminal 11 one pulse is required, for a bit at terminal 14 eight pulses are required. When the counter is reset and the appropriate number has been counted in register 58 the next bit position is interrogated. When gates 24 to 31 have been enabled by the bit tree, the decade tree is advanced to allow line 10<SP>1</SP> to enable gates 41-44 and the bit tree commences again enabling gates 24-31 in succession. The outputs of gates 41-44 are applied to the counter as described above and the resetting pulses applied to register 61. When all the gates 24-31 have been enabled the decade tree is advanced to enable gate 45 and the process repeated. If a carry occurs in any stage it can be carried to the next register via gates 59 or 60. The output registers may be binary coupled decimal, as shown, or decimal. Fig. 3 (not shown), illustrates a decimal to binary conversion and Fig. 4 (not shown), illustrates a binary to octal conversion.
Patent GB-360868-A (GB)
Title: Device for the regulation of the pressure in the gas cylinders of gas pressure loaders
IPC: F41A5/28
Filed: 1930-05-05
Abstract: 360,868. Multiple-way valves. CESKOSLOVENSKA ZBROJOVKA AKCIOVA SPOLECNOST V BRNE, 7, U layeretu, Br³nn, Czecho-Slovakia. May 5, 1930, No. 13805. Convention date, May 6, 1929. Void [Published under Sect. 91 of the Acts]. [Class 135.] Rotary cylindrical valves; locking.-A rotary plug 53 for regulating the gas pressure in the gas cylinder 6 of an automatic gun is arranged coaxially with the cylinder and has an inclined face 42 adjacent the gas-port 15 leading from the gun barrel. A rotary locking bolt 26 engaging one of three grooves 30 in the plug enables the plug to be set to the fully open, the partly open, or the completely closed position in relation to the gas-port. In the latter position, the gas-cylinder communicates with the outside air through a port 66 which enables the automatic action of the gun to be dispensed with and which also facilitates cleaning. In a modified form of plug, the face 42 is of helical formation and five grooves such as 30 are provided for more gradual regulation.
Patent GB-858187-A (GB)
Title: Novel dibenzocycloheptaenes and salts thereof and a process for the manufacture of same
Filed: 1959-03-24
Abstract: The invention comprises 5-substituted-dibenzocycloheptadienes and 5-substituted dibenzocycloheptatrienes and their acid-addition and quaternary salts in which the 5-substituent is an alkylidene radical containing more than two carbon atoms and bearing one or more disubstituted amino groups, optionally bearing additional alkyl, alkoxy and/or halogeno substituents on the dibenzocycloheptene ring and their preparation by treating a 5-aminoalkyl-5-hydroxy-dibenzocycloheptadi (or tri) ene with a dehydrating agent, e.g. alcoholic hydrogen chloride, and transforming the product into the free base or an acid-addition or quaternary salt as required.  Preferred products are 5-(o -dimethylaminopropylidene), dibenzocycloheptadiene, dibenzocycloheptatriene and 3-chlorodibenzocycloheptadiene and 5-(o -piperidino-propylidene)-dibenzo cycloheptadiene.
Patent GB-551417-A (GB)
Title: Improvements relating to gear-grinding and like machines
IPC: B23F23/00
Filed: 1941-10-28
Abstract: 551,417. Gear grinding. DENNIS BROS. Ltd., and LIMMING, E. A. Oct. 28, 1941, No. 13842. [Class 60] A gear grinding or like machine has means which may be embodied in an attachment to an existing machine, whereby the work-head of the machine is suspended from a lever engaged by a cam driven from the work spindle and shaped so that the rate of feed decreases as the area of cut of the grinding wheel increases. In one form the feed screw 11 which normally feeds the work-head to the grinding wheel is disconnected from its drive and from the work-head and a trunnion-block 14 is secured to the screw. A lever 17 is pivoted at 16 to this trunnion block and is connected by links 21 to a block 12 having a clearance hole for the feed screw and connected to the work-head. The lever 17 has a follower engaging a cam 25 removably clamped to a spindle 26 driven from the work spindle-39 through chain gearing 37, change gears 35 and worm gearing 34. The cam surface is arranged to give a reduced rate of feed as the grinding wheel cuts deeper into the tooth spaces and the final part of the cam surface is concentric so that there is a dwell while a finishing cut is taken through all the gear spaces. The work-head is returned by springs 41. In a modification, Fig. 4, the block 14 is dispensed with and a yoke 43 is rigidly secured to the feed screw by a nut 44. The yoke has pads 45 engaging similar pads 46 on side plates secured to the lever 17 to form a fulcrum for the lever. The side plates carry the trunnions 22 of the block 12a secured to the work-head so that the weight of the head maintains the lever against its cam 25. The feed screw may be used in the usual manner for the preliminary setting of the machine.
Patent GB-774945-A (GB)
Title: Method of, and apparatus for, electrically butt welding studs and the like
IPC: B23K11/00
Filed: 1955-05-13
Abstract: 774,945. Welding by pressure; shearing. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. May 13, 1955 [May 15, 1954], No. 13848/55. Class 83 (4). In electrically butt - welding studs &c. to a plane or curved workpiece, a length of wire is cut from the leading end of a continuous wire and is moved into a line parallel with the continuous wire, the cut-off length is advanced into contact with the workpiece for butt-welding, advancing at the same time the continuous wire a distance equal to the cutoff length and butt-welding the cut-off length to the workpiece. In an embodiment a wire straightener 2, a device 3 comprising two fluid-pressure cylinders, a fluidpressure wire-holding device 4 and a fluid-pressure cylinder 16 are secured to a frame 1. The piston of the upper cylinder in the device 3 is hollow and has tubular extensions, the forward one 5 of which carries a fluid-pressure operated wire clamping device 6, the continuous wire being fed through the tubular extensions. The piston of the lower cylinder has a rod 7 which is connected through a spring 8 with a sliding member 9 having a vertically slidable member 14 mounted therein, a nozzle 12 and a tubular extension 13 in line with the wire feed path. With the apparatus in the position shown in Fig. 1, the continuous wire p having its end in a bore 17 in the slide 14 and abutting a stop 18, the piston 15 of the cylinder 16 is operated to press the slide 14 downwardly against a spring 21, thus shearing off the end of the wire and bringing it into line with the nozzle 12. A piston 10<SP>1</SP> in a fluid-pressure cylinder in the member 9 is operated so that its extension 11 moves the sheared off end into the nozzle 12 and locks the slide against upward movement. The device 4 is released and the device 6 is clamped on the wire and simultaneously the cylinders of the upper and lower cylinders of the device 3 are supplied with fluid. Thus, as shown in Fig. 2, the wire is drawn to the left and the cut length in the nozzle 12 is pressed against the workpiece to be welded thereto, current being supplied to the nozzle and to the work. After welding the extension 11 is withdrawn to allow the slide to rise and then the pistons in the device 3 are retracted, the device 6 having been released and the device 4 clamped on the wire. The wire is received in the bore of the slide 14 in readiness for another operation. A plurality of wires may be fed and welded. Specification 676,069 is referred to.
Patent GB-112260-A (GB)
Title: Improvements in or relating to Vomiting Kiers.
Inventor: JEFFERSON EUGENE DENNISON
IPC: D06B7/00
Filed: 1917-09-26
Abstract: 112,260. Jefferson, E. D. Dec. 29, 1916, [Convention date]. Electrically-actuated valves.-A valve 53 for admitting steam under pressure at regular intervals to a vomiting kier of the closed-pressure type is operated by pins 75 on a disk 76 driven from one of a pair of electro-motors 110. As the disk rotates, one of the pins 75 engages an adjustable bracket 74 secured to a slide 70, thereby depressing the slide and opening the valve, a nut 66 secured to the valve stem 61 extending up into a socket 71 on the slide. The valve can be arranged to be opened for a longer or shorter period by adjusting the bracket 74 of threaded rods 73, and to be opened more or less frequently by varying the number of pins 75, a plurality of insertion holes 90 being provided in the disks 76; the lift of the valve is varied by adjusting the nut 66 on the valve stem. To disconnect any valve from the operating mechanism, a forked lever 82 supporting the slide 70 is withdrawn, permitting the slide to drop and withdraw the bracket 74 from the path of the pins.
Patent GB-593536-A (GB)
Title: Improvements in and relating to welding
IPC: B23K9/167
Filed: 1945-06-02
Abstract: 593,536. Uniting by fusion. LINDE AIR PRODUCTS CO. June 2, 1945, Nos. 13899 and 13900. Convention dates, June 14, 1944, and Dec. 23, 1944. [Class 83 (iv)] In electric arc welding with a refractory metal electrode and either A.C. or D.C., a high-frequency voltage is superimposed on the arc voltage, the welding zone being surrounded by an atmosphere of chemically inert gas. A long arc may thus be maintained so that a filler rod may be used without touching the electrode 14, thus avoiding contamination of the electrode and weld. Argon or Helium or a mixture of both may be used and are fed to the weld zone through an outlet 15 surrounding the hardwearing electrode 14 which may be of tungsten or molybdenum. The plates 10, 11 to be welded may be supported on a backing plate 12, thin plates having their edges pre-formed as shown. Conductors- 17 and 18 connect to the arc supply 24 and the high frequency source 21 respectively, the secondary of the high-frequency transformer 23 being in series connection with the arc supply. The invention is described with reference to the welding of stainless steel, nickel-molybdenum, copper-siliconbrasses aluminium and magnesium and alloys thereof. Frequency of superimposed voltage at least 1000 cycles are preferably 10,000 with low amperage generally less than 1 amp, and a potential of 2,000 volts.
Patent GB-735642-A (GB)
Title: Improvements in or relating to apparatus for feeding articles or moulds through a treating or casting zone
IPC: B22D11/00
Filed: 1952-06-03
Abstract: 735,642. Casting-machines; powder metallurgy. BRENNAN, J. B. June 3, 1952 [Oct. 24, 1951], No. 13954/52. Classes 83 (1) and 83 (4). Apparatus for feeding articles through a casting or treating zone comprises guide means passing through the zone, a feeding device with a number of article-receiving openings therein to bring the openings into register with one end of the guide means, and means for pushing an article from the feeding device into the guide so that another article at the other end of the guide is moved into a similar synchronously-driven unloading device. A tubular member 12 passes through a crucible 1 of molten metal and through a cooling jacket 16 and has lateral openings 13 to allow the entry of metal from the crucible. The crucible is heated by a high-frequency coil 2 and is enclosed in an outer vessel 9 which may be evacuated from a port 11. Molten metal is fed to the crucible by a heated pipe 3 from another crucible 4 similarly enclosed within a vacuum chamber 10. In operation, moulds 15 are loaded into openings in a rotary feeding- device 22 and carried in turn to a position above and in alignment with the member 12, whereupon each mould is pushed into the member by a plunger 29, thereby pushing the lowest mould out of the lower end and into a second rotary device 22 which carries it to an unloading station beneath a plunger 28. As each mould passes through the tube 12, it passes the openings 13 and becomes filled with molten metal. The apparatus may be used for sintering metal compacts by leaving the crucible 1 empty, feeding the compacts through the tube 12 and heating them to sintering temperature by a high-frequency coil 35.
Patent GB-475500-A (GB)
Title: Aeroplane wing flaps
IPC: B64C3/54
Filed: 1936-05-16
Abstract: 475,500. Aeroplane wing - flaps. GRAY, W. E. May 16, 1936, No. 13966. [Class 4] A wing-flap is supported from the wing structure by means comprising a pivoted link running from a pivot on or fixed to the wing to a pivot on the flap some distance back from the leading edge thereof, and guided during adjustment by an additional support near its leading edge comprising a roller or equivalent working along a track so shaped that the aerodynamic load on the flap is substantially balanced at all positions of adjustment by the force in the link and the reaction between the track and the roller. Alternatively the track may be so shaped that a heavy operating load is produced during the initial travel of the flap and thereafter substantial balance is achieved. In one such form, Fig. 1, a slotted flap 2, of the kind described in Specification 176,909, [Class 4], is pivoted to a link 3 pivoted to wing 1 at 5. A roller 6 attached to the flap is guided in a track 7 in a bracket 8 fixed to wing 1. The slot formed between wing and flap is closed bv a plate 9 hinged to flap 2 and controlled by a link 11 connected at one end to a fixed point on the wing, and at the other to a lever 10 on the plate. Adjustment is effected by a pull-push rod 12 and a separate hand control may be provided for effecting the initial travel of the flap. According to modifications the flap 9 may be hinged to the slot wall and bracket 8 may be carried by the flap and roller 6 by the wing. The flap may be maintained in closed position by a spring. As applied to a split flap, Fig. 2, a roller 6 carried by flap 13 works in a track 7 so shaped that the aerodynamic force on the flap is substantially exactly balanced in all adjusted positions by the reaction B between track and roller and the tension in link 3. The supporting link 3 may in a modification run rearwardly from the flap pivot to the wing as described in Specification 416,715. Specification 301,199, [Class 4], also is referred to.
Patent GB-554970-A (GB)
Title: Improvements in the method and apparatus for the manufacture of pre-stressed concrete structures of short length such as railway sleepers or the like
IPC: B28B23/04
Filed: 1942-10-06
Abstract: 554,970. Moulding pre-stressed concrete sleepers &c. PRE-STRESSED CONCRETE CO., Ltd., and MAUTNER, K. W. Oct. 6, 1942, No. 13995. [Class 87 (ii)] [Also in Group X] Short pre-stressed concrete elements, such as railway sleepers, in which the maximum loading stress occurs near the ends are provided with wire reinforcements of a greater diameter than 1/12 inch, which are pre-stressed to the extent necessary to produce the desired effect of counteracting the external forces, bonding of the reinforcement with the concrete being assisted by subjecting the concrete while setting to vibration, and heating to 200‹F., with or without compression. The stretching device comprises girders a, Fig. 4, arranged at each side of or below the mould. Hydraulic jacks c press forward a plate g in which the wires are fixed by keys or wedges. The girders may be omitted and the mould used as the stretching abutment. The mould comprises channel elements h, in a frame i, with plates to enclose the concrete spaced by slots of 1/200 inch width to release water on compressing the concrete, or slots may be provided in the plates. In an alternative Fig. 7, (not shown) the concrete may be enclosed by flexible steel sheets the edges of which separate slightly by bending, when the concrete is under compression. When the stretching force is released after setting of the concrete in the above manner the slight radial expansion of the wires due to longitudinal contraction ensures effective bonding with the concrete near the ends of the wires, without anchorage of the wires.
Patent GB-1335504-A (GB)
Title: Heat exchanger
IPC: F22D1/02
Filed: 1972-03-24
Abstract: 1335504 Tubular heat exchangers RHEINSTAHL AG 24 March 1972 [27 Dec 1971] 14006/72 Headings F4S and F4A In a heat exchanger comprising a plurality of groups 1, 2, 3 of tubes interconnected by return bends 19, 15, 16 arranged one above the other, the tubes in the uppermost group 1 extend between and are welded to tube plates 8, 9 one of which is resiliently mounted at its periphery by means of an expansion plate 10 capable of absorbing longitudinal expansion movements of the tubes. In use, hot flue gases, e.g. from an oil-fired marine boiler pass upwardly over the tube bundles through which water to be heated is passed via headers 4<SP>1</SP>, 4, 4<SP>11</SP>. The tubes in the other groups 2, 3 extend between tube plates 11, 12 and 13, 14, the tubes being welded into the tube plates 11 and 12 but extending through apertures in the tube plates 13, 14 so that they can expand freely. The return bends 15 and 16 adjacent the tube plates 13 and 14 are separated from the return bends 19 of the uppermost tube group by means of fluid tight cover members 17, 18; thus flue gases passing out through the tube plates 13 and 14 are prevented from contacting the return bends 19 of the uppermost and coldest tube group 1 thereby reducing the risk of dew-point corrosion on these return bends 19. The tubes of the tube group 1 each comprise a steel tube with a cast iron ribbed or finned jacket, whereas the tubes of the other groups are ribbed steel tubes.
Patent GB-1485554-A (GB)
Title: Step drive apparatus
IPC: F16D41/20
Filed: 1975-04-04
Abstract: 1485554 Friction clutches; clutch-brake combinations NIXDORF COMPUTER AG 4 April 1975 [24 April 1974] 14015/75 Headings F2C and F2L  A friction clutch for an intermittent drive in an office machine comprises a helical spring 10 secured at one end 11 to a continuously rotating driving hub 3 and at the other end to a control sleeve 15 which is connected to a surrounding sleeve 17 by a slip coupling so that when a detent 37 holds the sleeve 17 a friction drag is applied to the sleeve 15 to cause the spring 10 to contract radially and grip a driven hub 4. The slip coupling is provided by a spring 19 urging the sleeve 17 into frictional engagement with a circlip 16 fast with the sleeve 15. When the clutch is disengaged the spring 10 and sleeves 15, 17 rotate with the driving hub 3. The sleeve 17 has a plurality of notches 18 which are engaged by the detent 37 to hold the sleeve for clutch engagement. Reverse rotation of the driven hub 4 is prevented by a one-way helical spring brake 26. A toothed wheel 20 fast with the driven hub 4 is engaged by a detent 35 to stop the driven hub 4 in predetermined positions. The clutch is controlled by an electromagnet 30 which, when energized, pivots the detent 35 away from the wheel 20 and permits a spring 38 to pivot the detent 37 into engagement with the sleeve 17 for clutch engagement. On de-energization of the electromagnet 30 the detent 35 is engaged by the next tooth 21 on the wheel 20. The detent 35 is moved by the wheel 20 relative to an armature 31 until it engages with and pivots the detent 37 out of engagement with the sleeve 17 for clutch disengagement.