baber/WOPTO huggingface dataset:
Patent GB-919832-A (GB)
Title: Nickel base alloy and heat treatment therefor
IPC: C22C19/05
Filed: 1959-07-24
Abstract: A precipitation-hardenable alloy has the following percentage composition: .C-.-.-.-.0-0.08 .Fe.-.-.-.4-6 .Cr.-.-.-.14-17 .B.-.-.-.0.05-0.1 .Al.-.-.-.3.6-5 .Ti.-.-.-.2.7-4 .Mo.-.-.-.4-7 .Ni.-.-.-.the remainder, the Al being more than 4 when Ti is 2.7-3 and 3.6-4 when Ti is more than 3.  The alloy may be solution treated at 2075-2200 DEG  F. for 1 hour, air cooled and then aged.
Patent GB-1166451-A (GB)
Title: Photographic Reproduction
Inventor: HOLSTEAD KOLIN
IPC: G03G5/06
Filed: 1965-06-16
Abstract: 1,166,451. Photoconductive element. KODAK Ltd. 15 Sept., 1966 [16 June, 1965], No. 25496/65. Heading H1K. [Also in Division G2] A layer having a differential conductivity pattern is made by image-wise exposure of a layer containing a photoconductor and a photolysable compound which modifies the sensitivity of the photoconductor to a greater or lesser amount than its photolytic products, thereby decomposing the photolytic compound in an imagewise pattern. The photolysable compound may modify either the intrinsic or spectral sensitivity of the photoconductor. The photoconductor may be ZnO, polyvinylcarbazole or a polyester. The photolysable compound may he a pyrilium or thiapyrilium compound, CBr 4 , CHI 3  or C 2 HBr 5  whose photolytic products combine with diphenylamine, triphenylamine or a benzothiazole to give a sensitizer. Trimethylchlorosilane, alkyl thiourea, leuco Crystal Violet or a benzopyran may be used as additives. A1 or Al-coated paper may be used as a substrate. After forming the differential conductivity pattern, the remaining photolysable compound must be reduced or heated to render it insensitive to further photolysis, alternatively the light source used to produce the charge-pattern image must not induce photolysis, e.g. a medium or low intensity tungsten lamp may be used. After image-wise exposure of the initial layer a second overall exposure is given after electrostatic charging, thus giving a charge-pattern image which is developed by particle deposition. Alternatively the initially exposed layer may be uniformly exposed on one side and electrolytically developed on the other.
Patent GB-648656-A (GB)
Title: Improvements in electromagnetic relays
IPC: H01H51/28
Filed: 1948-10-01
Abstract: 648,656. Electromagnetic relays. WESTERN ELECTRIC CO., Inc. Oct. 1, 1948, No. 25606. Convention date, Oct. 1, 1947. [Class 38(v)] The components of a polarized relay including the operating coil 17, the polarizing magnet 25 and the sealed tube 1 containing armature and contacts are assembled in an outer vessel 18 of magnetic material, the vessel is then filled with a plastic filling such as wax which is inserted when in a fluid state and then caused to harden thereby securely holding the components in place. The vessel 18 provides magnetic shielding. In the form shown the armature 10 is mounted on a spring 11 and carries a contact 15, Fig. 4, made out of a bent wire so as to form a wick up which mercury is pulled by capillary action from a pool 14 this action being aided by pieces 12, 13 of mercury wettable material 12, 13. The spring 11 tends to hold the armature against back contacts 4, 5 but when the coil 17 is energized the armature is attracted to the front contacts 8, 9 which are wires of magnetic material magnetized by the permanent magnet 25 which is soldered to the wire 9 and separated from the wire 8 by insulation 16, Fig. 2. The strength of the magnet 25 may be such that when the coil 17 is de-energized the armature returns to its original position. Alternatively it may be such that the armature is retained and only later released by sending a current through thecoil in the opposite direction. In a modification, Fig. 10 (not shown), the armature' moves between two fixed contacts each polarized by a separate permanent magnet. The permanent magnet 25 may be magnetized after assembly by imposing on it a strong magnetic field which saturates the steel cover 18 and penetrates to the magnet 25, Figs. 6, 7 (not shown). It may then be subjected to a gradually diminishing A.C. till it is demagnetized to the amountrequired, Figs. 8, 9 (not shown).
Patent GB-712132-A (GB)
Title: Improvements relating to composite metal structures
Inventor: MATTHEW WILLIAM POMEROY
IPC: B23K35/00
Filed: 1951-11-02
Abstract: 712,132. Soldering and brazing. ISTHMIAN METALS, Inc. Nov. 2, 1951, No. 25667/51. Addition to 683,085 and 712,127. Class 83 (4). [Also in Group XI] A method of joining two ferrous metal parts, e.g. the component parts of a crankshaft, as disclosed in the parent Specification, is further characterized in that the joint is heated by an inductor heater comprising two arms 76, shaped to conform to the cross-sectional shape of the joint, and pivoted together at 78. The tubular conductors 80 supply the heater with electric energy and also cooling fluid.
Patent GB-409198-A (GB)
Title: Improvements in feeding and regulating fire grates
IPC: F23L1/02
Filed: 1933-09-18
Abstract: 409,198. Boiler &c. furnaces; grates. ROELANTS, L. P., Route Militaire, Mortsel, Vieux-Dieu, Belgium. Sept. 18, 1933, No. 25808. Convention date, Sept. 17, 1932. [Class 51 (i).] In a fire-grate, more particularly for central heating boilers, of the type in which fuel falls from a magazine under gravity along slopes equal to its angle of repose, the bottom of the grate, which preferably comprises a jacket through which the water to be heated circulates, is provided with forced air supply openings, only adjacent to and beneath the bottom edges of the fuel slopes. In one form, Fig. 1, fuel 3 from a magazine 1 spreads along the grate or bottom 4 so that the lower edges of the fuel slopes reach openings 7 supplied with air from a chamber 8 fed from a compressor 10 controlled by a thermostat 11 subject to the heat of the circulating water. The outlet of the magazine is formed by adjustable guides 2 and the mass of fuel at the middle of the heap on the grate may be replaced by a deflector 5. The grate or bottom 4, a wall 13, deflector 5 and guides 2 are removable as a whole as shown in Fig. 2. In a modification, Fig. 3, the fuel falls past an inverted V-shaped guide 2 to form two fuel slopes meeting over a single combustion zone 6.
Patent GB-1300172-A (GB)
Title: Regulation of liquid stabilised plasma generators
IPC: H05B7/18
Filed: 1970-05-28
Abstract: 1300172 Liquid stabilized plasma generators LONZA Ltd 28 May 1970 [5 June 1969] 25825/70 Heading H5H A liquid stablized plasma generator has means for supplying a constant amount of stabilizing liquid through at least one supply duct 1, 3, into the generator, independent of the counterpressure of the plasma 13 acting against the inflow of the liquid. Pressure regulation by a regulator 5, in response to a signal from a flow measuring device 6 via a line 47, keeps constant the amount of liquid supplied to inlet duct 1. A similar arrangement 22, 23, 47, exists for inlet duct 3. Outlet duct 2 leads via a pump 14 to a flow divider 15 which may feedback part of the discharged liquid at 17 to the supply to inlet 1. Divider 15 also has a regulated outlet 18 for liquid, and an outlet duct 16 for periodic removal of solid or liquid products. Stabilizing liquid also exits via outlet duct 14 via a pump 19 and regulating arrangement 20, 21, 47. Other regulating arrangements are described, Figs. 2-5 (not shown), combining the supply and/or discharge control of the liquid, e.g. by coupling inlet ducts 1 and 3, or by combining the metering to the inlets 1 and 3 and the discharge from outlet 2 through the pump 14 in a pressure enclosure 43, Fig. 5 (not shown), acting as pressure regulator and flow divider.
Patent GB-207313-A (GB)
Title: Improvements in or connected with mechanical hammers
IPC: B21J7/12
Filed: 1922-09-25
Abstract: 207,313. Blacker, W. Sept. 25, 1922. Power hammers.- The anvil of a mechanical hammer is pivoted so that it can be tilted to introduce long bolts, rods, &c. into a vertical recess therein for heading &c. The anvil a is pivoted at c to a base b which may be separate from the hammer. The anvil may be tilted in the direction of the arrow by a toggle e or other hand operated device and this movement may be assisted by a spring. The anvil may shroud the base or be otherwise guided.
Patent GB-951715-A (GB)
Title: Improvements in or relating to segregation devices
IPC: B65G17/00
Filed: 1962-07-05
Abstract: 951,715. Separating and sorting. ILLUMITRONIC SYSTEMS CORPORATION. July 5,1962 [Oct. 11,1961], No. 25918/62. Heading G1W. [Also in Division B8] Carriers 34 slidable on rods 32 of an endless conveyer as in Specification 923,689 remain undeflected if articles delivered to them by a conveyer 12 are of correct weight, the articles thereby being delivered to a conveyer 48. According as the articles are grossly over, slightly over, slightly under, or grossly under weight, the associated carriers are deflected so that the articles are delivered respectively to carriers 46,47,49, or 50. Each carrier is of nylon and has a depending cam-follower pin 44 (Fig. 2). All carriers after delivering their articles to the belts 46-50 are picked up by the engagement of their pins 44 with cams 100,102, which thus causes each carrier to be directed to a mechanical switch (Fig.5). Outer spring blades 76, 79, are engageable respectively by push rods 68A, 68C, and inner blades 77, 78 are engageable respectively by push rods 68B, 68D (the latter pass through apertures in the blades 76,79). Thus according to whichever push rod is deflected, the pin 44 of a carrier is engaged by a respective cam rail 80, 81, 82 or 83. If none of the rods are deflected, the pin 44 passes straight through between the blades 77, 78. The push rods 68A-68D are operated by respective solenoids according to the action of a weighing mechanism comprising an electric fiveposition switch 10 actuated by a sensing element 9. Instead of a weight sensing element 8, articles may be sorted according to size, or according to correct filling (in the case of a container) or on an arbitrary basis (e.g. every fifth article being caused to follow the same path). In another application articles may be diverted alternately left and right to accommodate a machine having a smaller throughput. A simpler form of two-way mechanical switch is also described (Fig. 8 not shown).
Patent GB-815474-A (GB)
Title: Improvements in or relating to tools for sheet metal working
IPC: B21D11/08
Filed: 1955-09-09
Abstract: 815,474. Stretching; forging. ECKOLD, W. Sept. 9, 1955 [Sept. 13, 1954], No. 25920/55. Class 83 (4). A tool for stretching or upsetting sheet metal and comprising a pair of jaws between which and a pair of jaws on an opposing tool the sheet is stretched (or upset) as one jaw of each pair moves from (or towards) the other jaw of the pair consequent upon a thrust exerted on the tool at right angles to such movement is characterized in that the sheet-engaging faces of the jaws have hardened pressure plates fastened on the jaws by pins, the outer edges of the jaws and plates being so shaped as to permit interengagement with one another. An upsetting tool, Fig. 1, has jaws 1, with a rubber pad 2 therebetween urged together by inclined. pins 3 on the application of a vertical thrust. Sheet engaging pressure plates 6 fit at their outer edges in undercut edges 4 of the jaws 1 and have flanges 7 at their inner edges engaged in undercut recesses 8 in the jaws. Pins 9 position the plates on the jaws. A stretching tool, Fig. 2, with jaws 1 urged apart by pins 3 under thrust have pressure plates 6 with outer edge flanges 13 fitting over chamfered edges 14 of the jaws. Reference has been directed by the Comptroller to Specification 766,269.
Patent GB-501903-A (GB)
Title: Improvements in and relating to coreless induction furnaces
IPC: H05B6/40
Filed: 1938-09-05
Abstract: 501,903. Electric induction furnaces. HERAEUS - VACUUMSCHMELZE AKT.- GES., and ROHN, W. Sept. 5, 1938, No. 25947. [Class 39 (iii)] The windings of a coreless induction furnace consisting of quadrangular tubes a, Fig. 1, through which water flows, are fixed in position by securing to a layer of insulation e. The windings a are bored, tubes b are soldered in the bores, and bolts c are passed through the bores to be secured by bolts f. The surface of the insulating layer e may be cylindrical on the inside and plane on the outside, whilst insulation d may also be provided between the bolts c and the tubes d. In a modification, the tubes a, Fig. 4, are not bored but are secured by bolts c passing through distance pieces soldered between the windings a. The current is passed in parallel through adjacent windings a, and these are connected on the inside by copper strips h of thickness corresponding to the penetration depth of the current at the frequency at which the furnace is operated.
Patent GB-1148938-A (GB)
Title: Batch drier for grain
Inventor: BURGHARD STEPHEN FREDERIC
IPC: F26B21/10
Filed: 1966-06-10
Abstract: 1,148,938. Drying apparatus. JOHN WILDER Ltd. 9 June, 1967 [10 June, 1966; 5 Dec., 1966], Nos. 25982/66 and 54430/66. Heading F4G. [Also in Division A2] A batch grain dryer, which is similar in general construction to the grain dryer, described and illustrated in Specification 1,138,067 comprises: means for passing heated air at a desired, preferably constant, temperature through a batch of grain, which has been loaded into the drying compartment; a device, which is arranged to measure the temperature of air leaving the grain and is associated with means responsive to .this temperature, for terminating drying and initiating a further operation or operations such as: the optional passing of cool air through the dried batch of grain to cool it, unloading the batch of dried grain, loading another batch of grain into the drying compartment, and re-starting drying.
Patent GB-479694-A (GB)
Title: Machine for closing bags
IPC: B65B7/08
Filed: 1936-09-24
Abstract: 479,694. Labelling. TENNANT, W. J. (Aktiebolaget G. Arehns Mekaniska Verkstad) Sept. 24, 1936, No. 25988. [A Specification was laid open to inspection under Sect. 91 of the Acts, March 30, 1937.] [Class 73] [Also in Group XVII] A machine for closing bags comprises a device for bending down the upright, flattened bag end, and a coiling device which coils the bent down bag end, both of which devices may be as described in Specifications 477,858 and 477,859, [both in Group XVII], respectively. The coiled bag is then sealed by a mechanism comprising a plate 120 mounted on a vertically reciprocable rod 86. The closed bag A arrives in position beneath the plate with the bag fold still held down by a plate 115, Fig. 1, on the bars 74, which follow the motion of the bag. Jaws 96, 97, on a carriage 98, are moved to the right and seize the end of a web Band draw it to the left over an adhesive roll 108. The jaws are opened and closed at the appropriate moments by projections 100, 116, acting upon an arm 114 on the jaw 97. A knife 107 cuts off a strip from the web and the plate 120 is moved downwards and presses the strip on to the plate 115 above the fold and rollers 95 on arms 94 descend to press the ends of the strips on to the sides of the bag. The plate 115 is retracted from beneath the strip, which now makes contact with the top of the bag and the bag is moved away by the conveyer 1.
Patent GB-465249-A (GB)
Title: Device for recording weighings in automatic weighing apparatus
IPC: G01G23/18
Filed: 1936-09-24
Abstract: 465,249. Electric signalling systems. EERHARD, J. M. Sept. 24, 1936, No. 25996. Convention.date, Nov. 2, 1935. [Class 40 (i)] A device for recording weighings in an automatic weighing apparatus comprises an auxiliary arm on the indicator shaft, and a follower arm permanently coupled to a motor and carrying two current interrupters opened by two insulated wedges situated respectively at the zero position and on the auxiliary arm so as to break the motor circuit when the follower arm reaches either the zero position or the position of the auxiliary arm, the motor including two circuits for rotation in two directions and being coupled to a recording device from which a printed record of the weighing may be obtained. The shaft 1 of the indicating pointer 2 carries an auxiliary arm 4, terminating in an insulated wedge 25. On manual depression of a button 16 a pair of cams 8 is rotated and permits spring-pressed rings 5 to clamp the arm 4. A contact arm 18 on the push-button extension, bridges contacts 20 and sets a motor 9 in rotation. The motor, operating through gearing, rotates a follower arm 12 bearing at its extremity two pairs of spring contacts 14, 15, normally in closed position. When the foremost pair of contacts 14 reaches the wedge 25 they are opened thereby, and stop the motor, the contacts being connected to the motor through slip rings on the hub 13. The rotations of the motor are transmitted also to a counter 11 from which a record of the weight may be taken by the depression of a printing lever 31. The push button 16 is held in its depressed position by a locking mechanism 28, 29, 30 which is however liberated by a lever 34 when the printing lever 31 is depressed. The rise of the press button causes its contact arm 18 to close a pair of contacts 19 and reverse the motor. The arm 12 is then driven back to its zero position whereat a second stationary insulated wedge opens the second pair of spring contacts 15 and stops the motor. When the push button 16 is depressed a projection 21 actuates a clutch 23 and couples a totalizer 24 to the counter 11.
Patent GB-767228-A (GB)
Title: Switch gear for automatically controlling operations of veneer shears
IPC: B27L5/08
Filed: 1954-09-08
Abstract: 767,228. Making veneers. MULLER, C. H. Sept. 8, 1954 [Sept. 21, 1953]. No. 25997/54. Class 145 [Also in Group XVI] A machine having switch gear for automatically controlling veneer shears is characterized in that a veneer strip B, rendered electrically conductive by its moisture content, forms part of electric circuits which control motors 9. 9<SP>1</SP> causing the unwinding of the strip from a roll 6 and operation of veneer shears 2 respectively, spaced contacts 10, 10<SP>1</SP> being located in the strip path in such a manner that when the strip engages individual contacts one motor is switched off or another is switched on and when such engagement is broken the one motor is switched on or the other is switched off. As shown, the roll 6 of veneer strip B is. unwound by a motor 9, such that the strip forms a loop above a conveyer band 1 driven by a motor 4 the speed of which is manually controlled by a lever 5. When the loop of strip engages the contact 10 - the motor 9 is de-energized by a switch 39 actuated by a relay 11 to prevent further unwinding until disengagement of the contact 10, thus maintaining the linear speed of unwinding substantially equal to the linear speed of the band 1. When a part B<SP>1</SP> of the strip B tilts the contact 10' the motor 9<SP>1</SP> of the shears 2 is switched on by a switch 39 actuated by a relay 11<SP>1</SP>, thus causing cutting of the part B<SP>1</SP>. The cut portion is removed by a conveyer band 3 driven faster than the band 1, thus causing the relay 11 to operate the switch 39 to de-energize the motor 9'. A series of contacts 10<SP>1</SP>, in parallel with the relay 11<SP>1</SP>, may be spaced along the band 3 to vary the cut length of veneer, the contact 10' to be used being rendered effective by a selector switch, not shown.
Patent GB-1198427-A (GB)
Title: Production of Lactams
Inventor: CAPP CLIFFORD WILLIAM
IPC: C07D201/02
Filed: 1967-06-06
Abstract: 1,198,427. Production of lactams. BP CHEMICALS (U.K.) Ltd. 15 May, 1968 [6 June, 1967], No. 26076/67. Heading C2C. Lactams are produced by heating a solution of a compound of formula wherein X and X<SP>1</SP> are divalent aliphatic radicals which may be the same or different, in a non-hydrocarbon organic solvent containing a salt of an element of Group I or II. The examples prepare caprolactam with cyclohexanone and caproamide formed as byproducts.
Patent GB-221043-A (GB)
Title: Improvements in or connected with self-driving power machines wherein oscillatory motion is transformed into rotary motion
IPC: F03G7/10
Filed: 1922-09-29
Abstract: 221,043. Simister, S. T. S. Sept. 29, 1922. Self-driving machines. - In a self-driving machine a beam is caused to oscillate by transferring a weight from one side of the fulcrum to the other by means of the rotary motion which is derived from the oscillatory motion of the beam. The beam 1 its fulcrumed on a shaft 2 and carries at one end a lever 4 the movement of which causes, by links 7, 8, a lever 9, pivoted on the beam at 10, to transfer the weight 22 from one side of the fulcrum 2 to the other by means of rollers 11, 12, cam levers 15, 16 and links 20, 21. The oscillatory movement of the beam 1 is transformed into rotary motion of the shaft 31 by means of pawls 24, ratchet wheel 23 and sprocket wheels 28, 30 with chain 29. A lever 33 mounted on the shaft 31 is provided with rollers 34, 35 which act on the bell-crank lever 54 which, through various linkages, oscillates the lever rod 81. Towards the end of the down-stroke the lever 4 is turned to transfer the weight 22 to the other side of the fulcrum, the catch rod 6 and a pin 84. The lever 45 is reversed towards the end of the up-stroke by the lever rod 81 and the flexible connection 5. The reversal of the direction of motion of the beam is assisted by links 38, 39 pivoted to the beam, the links being operated by levers 49, 51 which are engaged by a pin on the roller 35.
Patent GB-487195-A (GB)
Title: Improvements in or relating to devices for giving automatic warning in cases of danger of explosion
IPC: G08B25/00
Filed: 1937-09-28
Abstract: <PICT:0487195/III/1> A device for giving automatic warning of the presence of combustible gas in mines &c. comprises a gas detector operating a switch causing flickering of the existing lights of the mine.  The flickering may be intermittent, and the concentration of the gas may be indicated by the duration of the flickering periods or of the pauses between them or by the frequency of the flickering. The detecting device is preferably a known type of explosion switch, comprising a cylinder through which a sample of the atmosphere is continuously passed and enriched with combustible vapour in constant proportion and periodically subjected to an ignition spark.  In the embodiment shown in the Figure, a time switch 1 periodically closes the ignition circuit (not shown) of the explosion switch 2.  The occurrence of an explosion closes contacts 2a, energizing a self-holding relay 3 in series with the time switch 1 and a relay 5 which intermittently interrupts the lighting circuit 7.  The resulting flickering continues until the relay circuit is broken by time switch 1.  Failure of the time switch or of the supply of supplementary fuel in the explosion switch closes contacts 9, 10 respectively, producing in either event a flickering of the lights which persists continuously till the defect is remedied.  The concentration of gas may be indicated by means of a known diffusion device developing a pressure proportional to the gas content, this pressure being used to control the tension of the spring controlling the frequency of oscillation of relay 5.  Alternatively the concentration may be indicated by the duration of the pause between flickering periods; this is effected by applying the ignition spark more frequently than the explosion switch 2 can be flushed out so that the period necessary for the accumulation of a new explosive mixture is indicated.  In another modification the relay 3 and time switch 1 (except for ignition) are omitted and the contact 2a is closed by the explosion switch piston the return of which is effected by a spring retarded by a dash-pot.  The length of the piston stroke and consequently the period of closing of the contact depends upon the concentration of the gas.