baber/WOPTO huggingface dataset:
Patent GB-492755-A (GB)
Title: Method of and means for compiling accounts and statistical records
IPC: B41L11/00
Filed: 1938-03-02
Abstract: 492,755. Copying documents ; addressing and like machines. BLACKLOCK, D. S. March 2, 1938, No. 6181/37. [Class 100 (ii)] Apparatus for use in copying from a series of mirror-script master cards on to one or more list-sheets comprises a magazine C, Fig. 3, for a pile of cards, at least one carrier B in the form of a table or plate on which the lowermost card can be deposited and secured, and mechanism for moving the carrier and master card into printing position with respect to one or more platens over which the list-sheets are fed. The master cards are released by an escapement comprising discs 16 oscillated by reciprocating racks 21. The holders B are carried by chains 6a passing over sprockets 4a, 5a rotated intermittently, each holder comprising a plate 7 fixed to the chains, a movable plate 8 having fixed and movable bars 10, 11, Fig. 7, between which the card is clamped, and fingers 10c for holding the card prior to clamping ; a projection 10a on the bar 10 engages a nick in the card to centre it. Fixed stops 14 engage levers 13 to move the bar 11 to receive a card, and a spring 12 provides clamping pressure when the levers are released. The holders are advanced to one or more printing positions each comprising a stationary platen fixed on a frame 30, and the cards are pressed upwardly by a roller 63 carried by a lever 61 and adapted to engage rods 9a connecting pins 9 fixed to the plate 8 ; on arriving at printing position, the holders are clamped against a stop. A list-sheet folded zigzag is taken from a box 31a and is passed over a damping-pad 33, under a guide 34, under the platen, and over a guide 34b and between feed discs 48a and a co-operating roller, the discs being rotated intermittently to feed the sheet step-by-step by ratchet mechanism actuated from a rod 42 connected to a lever 40 lying in the path of a pin 41 projecting downwardly from the holder B ; the discs may have teeth engaging perforations in the sheet. Each sheet consists of a number of forms, and the first card of each series prints the address and the remaining cards items of information usually all on a single form. Where the items extend into the next form, the sheet is advanced an additional amount to avoid printing on the heading space. For this purpose, a sprocket 70a adapted to actuate a chain 69 coupled to the discs 48a carries an arm projecting into the path of the holder B ; the arm also provides a short feed to space the address from the item immediately following it. Where the items do not completely fill a form, the sheet is advanced to bring the next form into address-receiving position by reversing the pin 40 in the last item-card so that it projects upwardly and engages one of a series of pins on the chain 69 to advance the feed discs. In modifications : (1) the master cards or platens or both are curved, and printing is by rolling contact, and (2) the carriers are on radial arms and the platens are arranged circumferentially.
Patent GB-608707-A (GB)
Title: Improvements relating to the heat-treatment of metal articles
IPC: C21D1/06
Filed: 1946-02-28
Abstract: Surface hardening of metal articles is effected by pre-heating the surface layers to be treated for a short period, allowing the surface heat to soak into the mass of the article, then re-heating the surface layers for a very brief period followed immediately by quenching.  Means described for carrying out this treatment consists of an electromagnetic induction-heating apparatus [see Group XI].
Patent GB-1167606-A (GB)
Title: Improvements in Diamond Saw Blades or Milling Discs on Mineral Cutting Machines
Inventor: TUSTIN OLIVER ARTHUR
IPC: B23D61/02
Filed: 1967-02-09
Abstract: 1,167,606. Abrasive tools. O. A. TUSTIN, and E. R. L. BOWDEN. 8 May, 1968 [9 Feb., 1967], No. 6283/67. Heading B3D. A saw blade or milling disc for cutting minerals, such as coal or granite, is formed on its periphery with diamond impregnated segments 12 and has on each face a plurality of diamond impregnated segments 13 arranged so as, in use, to restore the cutting edges of the blade to the intended straight line after the disc has deviated. The segments are mounted on a disc of mild steel and the segment 13 extends a less distance from the face of the disc than do the segments 12. In use, if the saw blade is deflected from its intended line and begins to labour, an ammeter detects the increase in load on the blade to actuate a solenoid in the hydraulic circuit for feeding the blade so as to stop the feed to permit the segments 13 to side cut the blade back to its intended cutting line.
Patent GB-399193-A (GB)
Title: Improvements in and relating to adaptors for use with valve testing instruments
IPC: G01R31/25
Filed: 1932-03-02
Abstract: 399,193. Current and pressure meters ; plug couplings. RAWLINGS, S. H., Winder House, Douglas Street, Victoria Street, and MILLS, E., 132, Palmer's Road, New Southgate, both in London. March 2, 1932, No. 6299. [Classes 37 and 38 (i).] An adaptor for use with valve testing instruments has one or more sets of pins so arranged that it may be plugged into two or more different types of valve holder. As shown, a five-pin valve holder a is mounted on a base b and connected to terminals b<1> .. b<6> as shown. A switch c has three effective positions separated by " off " positions. The fixed contacts comprise three pairs of contacts normally in contact, but separated by a pair of movable contacts when the switch is in the corresponding effective position. The movable contacts are connected to terminals b7, b<8>, to which a current meter is connected. This meter may be inserted by the switch c between the terminal b<3> and the grid socket a<3>, or between the terminal b<5> and the anode socket a<5>, or between the terminal b<6> and the flexible lead d. The sockets a<1> .. a<5> of the valve holder a are also connected by leads in a cable e to corresponding pins f<1> .. f<5> in a five-pin adaptor f, the centre pin f<2> of which is slidably mounted so that it can be raised by means of a knob f<7> when the adaptor is required for use in a fourpin holder. Alternatively the centre pin may be entirely removable, or the centre pin may be fixed and the other pins slidable. The flexible lead d is connected to a similar lead h, both being fitted with clips d<1>, h<1>, which may be clipped on to knob j<1> on clips j attached to the cable when not in use. The valve to be tested is removed from the set and inserted in the holder a, the adaptor f being plugged into the holder from which the valve has been removed. In the case of a screen-grid valve, the clip d<1> is attached to the anode terminal of the valve and the clip h<1> to the anode lead in the set. The grid current, anode current and screen current may then be measured by taking readings with the switch c in each of its three positions. Voltages may be measured by connecting a voltmeter across the appropriate terminals b<1> .. b<6>. In an alternative construction the valve holder a is integral with the adaptor f, the supper surface of which has sockets to take the valve pins. The fifth or central pin may comprise a split pin slidable in a brass sleeve, to which connection is made. The pin is pushed down by the fifth pin of a five-pin valve. In another modification the adaptor has four fixed pins on the opposite face, a cover fitting over the set of pins not in use. In a further modification, four sets of pins may be provided, so that the adaptor may be employed with four or five pin valves of the British or American type. Covers may be provided for the sets of pins not in use.
Patent GB-826699-A (GB)
Title: Improvements in or relating to regulators for nozzles
IPC: B05B1/12
Filed: 1957-02-25
Abstract: 826,699. Spray-producers. FOERSTNER, W., [trading as TOTAL KOMMANDIT-GESELLSCHAFT FOERSTNER & CO.]. Feb. 25, 1957 [Feb. 25, 1956], No. 6324/57. Class 69 (3). The flow of water from a nozzle at the end of a jet pipe 1 is controlled by a needle 5 with a pear-shaped end which is moved axially by a spring- loaded pivoted trigger 8 and a linkage 10, 11. Spring blades 14, 15, Figs. 1 and 3, project into the water stream on the outlet side of the nozzle and are vibrated by the water pressure to produce a spray; the blades are mounted so as to be movable vertically into and away from the stream to vary the spray effect. The blades 14, 15 are attached by pieces 35, 36 to carriers 18, 19 which are guided vertically in grooves 16, 17 and the ends of the carriers comprise circular studs 20, 21 engaged by the forked ends of two pairs of bell-crank levers 24, 25. The latter pivot about pins 27, 28, and pins 31, 32 on the upper levers 24 are engaged by the forked ends of the levers 25 and by the forked ends of two arms 33, 34, projecting from a spring-loaded pivoted trigger 26. Operation of the trigger 26 causes the outward movement of the carriers 18, 19 and blades 14, 15. Instead of blades, steel wires may be used.
Patent GB-122854-A (GB)
Title: Improvements in Air-guns.
Inventor: DICKEY ARTHUR VANE
IPC: F41B11/55
Filed: 1916-05-04
Abstract: 122,854. Dickey, A. V. May 4, 1916. Pneumatic.-Relates to guns having a reservoir of compressed air which supplies air to the barrel when a spring-pressed valve is temporarily opened by the blow of a hammer. According to the invention, a rotary loading-plug 14 is provided, having a passage 20 which serves as an air duct and as a receptacle for the projectile, the plug being mounted in a block 12 having an opening leading to a magazine 16 and a second opening 17 for hand loading. The air reservoir 18 is filled either by an air pump 25 formed on the gun, or from an independent source. The valve 46, kept closed by a spring 47, has a forwardly projecting rod adapted to be struck by the hammer 49. Means is provided for adjusting the hammer spring 50 to vary the strength of the blow. The magazine comprises a tube 16 located behind the loading plug, and is filled by remcving the rear plug 37 which carries a spring 45 and cartridge follower 41. The follower is connected to the plug 37 by a telescopic rod 42, 43, 44 having a limited extension. The gun is loaded by first rotating the plug 14 to bring its opening opposite either to the hole 17 at the top of the casing, for single loading, or to the mouth of the magazine, and then rotating it back to the position shown in Fig. 4. The hammer is cocked either by an independent hand slide, or by a slide which is also formed with a rack for rotating the loading-plug for magazine loading.
Patent GB-739188-A (GB)
Title: Improvements in or relating to heels for footwear
Inventor: PHILLIPS VIOLET
IPC: A43B21/39
Filed: 1953-03-09
Abstract: 739,188. Heel protectors. PINONA, Ltd. Sept. 21, 1953 [March 9, 1953; May 6, 1953], Nos. 6409/53 and 12537/53. Class 17 (3). One or more pegs 21 by which a removable top lift 18 may be secured to a heel 10 have enlarged tapering bases 23 provided with conical flanges 24 to engage cylindrical apertures 25 in the lift 18 and anchor the pegs thereto. The pegs may have necks 22 of reduced thickness to engage resiliently, portions of reduced diameter on an insert 15 provided in a socket in the heel. Both the pegs and inserts may be of moulded nylon or artificial thermoplastic material. The Provisional Specifications describe also constructions wherein the pins are resilient and engage holes bored in the shoe heel. Also, a locking pin engaging one of the locating pins, or passing through a hole therein, or through a member attached to the heel piece,. may be provided.
Patent GB-1093882-A (GB)
Title: Novel carbon black and method for producing same
IPC: C09C1/48
Filed: 1965-02-15
Abstract: Carbon black is made by subjecting a halohydrocarbon to a zone wherein an inert elementary gas is maintained in a thermal plasma state.  The halohydrocarbon may be perhaloalkyl or -aryl compounds such as CCl4, C2Cl6, C6Cl6 and their fluorine, bromine and iodine counterparts.  The inert gas is monatomic, e.g. A, He, Ne, Xe, Rn, or diatomic.  The temperature of the zone may be 10,300-40,000 DEG  F. The inert gas may be introduced tangetially to the zone at a pressure of 1 atm. or above.  The gas may be excited using an arc, a plasma torch or preferably using induction heating at high frequencies, e.g. 3-5 Mc./sec.  The zone may be formed within a tube of refractory material, e.g. quartz.  The carbon black produced is highly amorphous and can have an N2 surface area of 204 m.2/g., a particle diameter of 36 mm  and oil absorption of 0.99 c.c/g. and a scale (blackness) of 77.
Patent GB-1452698-A (GB)
Title: Direct current power transmission system
IPC: H02M7/757
Filed: 1974-02-13
Abstract: 1452698 HVDC power transmission ALLMANNA SVENSKA ELEKTRISKA AB 13 Feb 1974 [14 Feb 1973] 06465/74 Heading H2F In a HVDC system in which each station comprises at least two parallel-connected converters 1, 2 connected to the D.C. line L, each station has means to sense the current and voltage in the D.C. line L and to reduce the current order for that station in the event of a sudden reduction in the voltage, the inverter station being arranged so that the internal direct voltage of one inverter is reduced to zero following the loss of current in another inverter. Fig. 2 shows an inverting or rectifying station having two parallel inverters 1, 2 having separate reactors R and current-measuring transductors 3, 4. A current order is received from a controller 9 and is transmitted to the remote station by a telecommunications link T. Receiver 8 adds or subtracts a current margin and signals current regulators 6, 7. If one of the converters 1, 2 in the rectifier station fails, the other will continue to supply half current. This will result in the current control of the inverters decreasing the inverter internal direct voltage so that the voltage on line L is reduced substantially to zero. Voltage sensor 11 responds to the simultaneous voltage reduction on line L and to the error in the current regulation (detected by accumulators 12 and 13) by causing the receiver 8 to reduce the current order to one half. If one converter in the inverter station fails, this will be detected by detail 32 or 42 which causes regulator 6 or 7 to reduce the internal direct voltage to zero. The resultant loss of voltage on line L will be detected in the rectifying station by sensor 10 which determines (as described in Specification 1,053,029) whether a line fault or converter fault is present. This action involves repeated blocking and un-blocking of the rectifiers. If the fault was in one inverter, the transmission continues with reduced power. Details 32 and 42 enable the system to distinguish between faults in the local and remote station.
Patent GB-525755-A (GB)
Title: Improvements in or relating to sound recording
IPC: G11B7/00
Filed: 1939-02-28
Abstract: 525,755. Recording sound. RADIO CORPORATION OF AMERICA. Feb. 28,1939, No. 6545. Convention date, Feb. 28, 1938. Addition to 500,994. [Class 40 (ii)] In a method of recording sound using two beams of light, one beam is vibrated in accordance with the sound vibrations, the second beam provides a record background of predetermined density, and both beams are intercepted by a shutter controlled by the envelope of the sound. Light from source 10 passes through the apertured mask 13 and falls upon the galvanometer, part being reflected by the cover plate 24 and part by the vibrated mirror 15. Both beams are focused on the slit 17 co-operating with a shutter 21 controlled by the motor 23 in accordance with the sound envelope. The image of the aperture 12 is shown in dotted lines on plate 18, and the shutter 21 is shaped as shown,-with the result that the negative, Fig. 4, has clear central and outer portions 30, 31, and a dark sound record 34, 35 against a grey background 36, 37, the positive Fig. 5 (not shown) being of course reversed, with dark central and marginal portions and a clear sound record against a grey background. For class A push-pull recording, the apertured mask is modified as shown in Fig. 6, and for class B push-pull recording as shown in Fig. 9. Figs. 7, 8 and 10, 11 show negative and positive records of class A and class B respectively.
Patent GB-608913-A (GB)
Title: Improvements in and relating to the tangent screws of instruments
IPC: G01B3/18
Filed: 1946-03-02
Abstract: 608,913. Bearings. HUGHES & SON, Ltd., H., EVERITT, P. F., and HUGHES, A. J. March 2, 1946, No. 6557. [Class 12 (i)] [Also in Group XX] A tangent screw b is journalled in bushings e, f, which are shrunk into undivided housings g, g<SP>1</SP> forming an integral part of the carriage h. Preferably one bearing consists of a cone c relieved at C<SP>1</SP> and the other of a cylindrical shaft d relieved at d<SP>1</SP>. A dished plate spring k acting through ball j keeps the conical bearing c pressed into the conical bush e. The housing h pivots on balls s about an axis 5-5 parallel to the screw b and is urged by the springs t to bring the screw into mesh with its rack. Each ball s is engaged between a conical recess r in a plug n forced into a bore in a lug h, on the carriage and a similar conical recess in a plug q mounted in a lug o<SP>1</SP> on the part z of the instrument.
Patent GB-525760-A (GB)
Title: Improvements in or relating to rotary compressors, pumps or motors of the screw-wheel type
IPC: F04C18/08
Filed: 1939-02-28
Abstract: 525,760. Rotary engines. AKTIEBOLAGET MILO. Feb. 28, 1939, No. 6560. Convention date, March 1, 1938. [Class 110 (ii)] An engine, pump or compressor having rotors 12, 14, meshing together, is provided with a recess 38 in a piston thread 18, and/or in the helical recess 20 to provide accommodation for fluid trapped in the space 36 when it is filled by the thread 18. The rotor 12 has convex threads 16, 18, which co-operate with recesses extending axially from the line II-II on the rotor 14. Fluid enters and leaves by radial ports 28, 30, respectively. The rotors are coupled by gears 24, and may rotate without making contact.
Patent GB-348746-A (GB)
Title: Improvements in or relating to containers for plastic substances
IPC: B65D83/00
Filed: 1930-02-27
Abstract: 348,746. Collapsable containers. NATIONAL CANTUBE CORPORATION, 1330, North Halsted Street, Chicago, U.S.A. -(Assignees of Grimes, J. E. ; 1330, North Halsted Street, Chicago, U.S.A.) Feb. 27, 1930, No. 6581. Convention date, May 16, 1929. [Class 11.] In a container for plastic substances, of the type comprising a rigid outer casing and a flexible inner bag connected to the bottom of the casing so that it can be twisted for expelling the contents, the bag 15 is secured to the top of the casing 10 by a crimping 16, between the casing and its top 11, while the bottom of the bag is closed and provided with an elongated loop 18a, through which is threaded a transverse kev 19. The key 19 is fixed at its ends to the bottom plate 21 and its middle portion is upwardly bowed. The plate 21 closes an annular member 22 constricted at 23 and having a continuous shoulder or detents 24, which engage a peripheral band 25 upon the casing 10, thereby holding the member 22 partly within and freely rotatable upon the casing 10. To compensate for the shortening of the bag due to twisting, excess material is usually provided, but when the bag is of highly flexible material, such as rubber, this is unnecessary, and the bag may be closed and secured to one side of the rotating member, or may be open and secured by crimping between the member 22 and its baseplate 21.
Patent GB-919387-A (GB)
Title: mprovements in piston-and-ring assemblies for the cylinders of internal combustion engines and the like
Inventor: CROSS ROLAND CLAUDE
IPC: F16J1/04
Filed: 1961-02-23
Abstract: 919,387. Pistons. CROSS MANUFACTURING CO (1938) Ltd. Dec. 15, 1961 [Feb. 23, 1961], No. 6637/61. Class 122 (1). In a piston-and-ring assembly comprising a bearing ring 3 axially located between and abutting two split packing-rings 7, the bearing ring is composed of two or more arcuate sections. The piston 1 is of light alloy and the rings 3 and 7 may be of tool steel. Specifications 415,322 and 874,145 are referred to.
Patent GB-355724-A (GB)
Title: Improvements in machines for making printers' leads, slugs, rules and the like
IPC: B41B5/12
Filed: 1930-02-28
Abstract: 355,724. Electric resistance furnaces. LUDLOW TYPOGRAPH CO., 2032, Clybourn Avenue, Chicago, U.S.A.-(Assignees of Hedly, A. H. ; 2032, Clybourn Avenue, Chicago, U.S.A.) Feb. 28, 1930, No. 6689. Convention date, March 30, 1929. [Class 39 (iii).] In a machine for casting a continuous strip of type metal for forming printers' leads, rules, &c., electrical means are employed for heating the metal-pot and the die in which the strip is cast. The molten metal in the pot 25, Fig. 3, is heated by an annular heating unit 58, which is supplemented by a flat heating unit 60 at the bottom of the pot, a pair of flat units 61 arranged one on each side of the outlet 42, and a pair of tubular units 63, one on each side of the die 53. Current is conveyed to the heating units through line wires 311, 312, Fig. 24, in which is interposed a handoperated switch 313. The current to the annular heater 58 is controlled by a thermostat 335, the movement of which rocks a lever 336 between two contacts 331, 338. When the cooling of the molten metal causes the lever 336 to touch the contact 338, the circuit of the coil 58 is completed through a self-opening solenoid switch 319. A holding circuit for the switch is completed at the same time, so that, when the lever 336 moves away from the contact 338, the circuit through the coil 58 remains closed. When the lever 336 reaches the contact 331, the coil 320 of the switch 319 is short-circuited, so that the switch opens and the coil 58 is cut out. The heating units 60, 63, and also a motor 305 for driving the machine, receive current through lines 406, 407, and are under the control of separate hand-operated switches 400, 401, 402. The heating units 61 are under the control of three hand-operated switches 403, 404, 405, by means of which one or both of two resistances 423, 427 may be put into the circuit, in order to vary the degree of heat.
Patent GB-1522913-A (GB)
Title: Polymerization inhibitor for vinyl aromatic compounds
IPC: C08F2/00
Filed: 1977-02-17
Abstract: 1522913 Inhibiting polymerization of vinyl aromatic compounds COSDEN TECHNOLOGY Inc 17 Feb 1977 [19 Feb 1976] 06729/77 Heading C5E The polymerization of vinyl aromatic compounds is inhibited during distillation in the presence of oxygen by the presence of a combination of phenothiazine and a phenolic compound. The inhibitor system may comprise 5-200 p.p.m. phenothiazine and 1-100 p.p.m. tert-butylcatechol. Nitroso diphenylamine may also be present in an amount of 10-500 p.p.m. Examples describe the distillation of styrene.
Patent GB-1133722-A (GB)
Title: Improvements in or relating to containers for fluids and the like
Inventor: ABIGAIL WALTER LEONARD
IPC: A62C13/00
Filed: 1965-02-17
Abstract: 1,133,722. Fire-extinguishers. GRAVINER (COLNBROOK) Ltd. 7 Feb., 1966 [17 Feb., 1965], No. 6741/65. Heading A5A. A fire-extinguisher of the kind comprising a sealed container containing a pressurised fire-extinguishing liquid or powder has a housing 14 secured to the neck of the container 10 and containing an explosive cartridge 12 which is detonated when it is desired to discharge the contents of the container 10 and a stopper 11 with a flange 11b held in sealing engagement with a ring 13 arranged in housing 14 by a sleeve 16 and a threaded ring 15 screwing into a portion of housing 14, the stopper 11 having a thin-rim 11a which is severed by the detonation of the cartridge 12 to release stopper 11. The stopper is discharged into a tube 18 held in ring 15 by a box 17 screwed into housing 14, tube 18 having lugs 18a to prevent the stopper rebounding and box 17 a pin 19 which is displaced by the discharge stopper and indicates visually that the container has been discharged.