baber/WOPTO huggingface dataset:
Patent GB-267777-A (GB)
Title: Improvements relating to electrical apparatus for the testing of internal combustionand other engines
IPC: G01M15/04
Filed: 1926-07-21
Abstract: 267,777. Highfield, F. W., and Highfield Electrical Co., Ltd. July 21, 1926. Dynamometers, rotary-absorption.-Relates to apparatus employing a dynamo electric machine which can be used as a motor or as a generator and consists in the employment of a pair of such machines mechanically coupled together and capable of being connected in series or in parallel. The engine to be tested, under a system similar to that described in Specification 229,427, is connected to one end of the common shaft of the coupled dynamo-electric machines. In Fig. 2, the machines are shown connected in series, which connection is suitable for moderate speeds when working as motors or dynamos. They are connected in parallel for higher speeds by a single quick-acting switch, the change-over being effected by hand or automatically. In the circuit of the armatures e, f are arranged controlling resistances g, a wattmeter r, a relay h indicating the maximum current, a differential relay i to operate a device indicating whether the machine is acting as a motor or generator, a switch j to break the circuit when required, and a relay k to indicate the maximum load. When acting as generators, the energy is absorbed in a local circuit m by closing the switch l after the switch j is opened. The overload device n trips the switch j on overload. Rheostats w, x serve to regulate the field windings u, v. When the engine is driven by the motors, a relatively small current is required even with all the resistances g cut out, but when used as a generator a large current is required. For the overload device to work under both conditions a number of the turns of the overload relay are short-circuited by the arm q engaging a tapping p when the machine operates as a generator. A diagram of the machines connected in parallel is also included in the Specification.
Patent GB-435635-A (GB)
Title: Improvements relating to freight vehicles such as for the collection of refuse
IPC: B65F3/24
Filed: 1934-06-20
Abstract: 435,635. Vehicle doors and operating means therefor. CRASKE, H., 31, Ryecroft Road, Streatham, and TAPP, E. T. J., 10, Manville Road, Tooting Common, both in London. June 20, 1934, No. 18295. [Class 108 (i)] [See also Group XXV] In scavengers' vehicles of the kind provided with means for packing and ejecting the refuse such as a moving floor or telescopic sections as described in Specification 370,944 a connection between the moving parts of the refuse compartment and the rear door is provided whereby movement of the container parts during ejection opens the door. The rear door 4 is hinged at 5 and provided with a filling opening closable by vertically hinged flaps 7, 71 and a horizontally hinged flap 8. The rear door 4 is locked by means of an arm 16 engaging latches 17, 17<1> and carried by links 15, 151 from bolts 13 slidable in slots in fixed parts 14 and it is also locked by a bolt 29 entering registering apertures 30, 31 under the control of a control arm 19 carried by levers 20, 201. At each side thrust rods 9, 91 are provided with a V-shaped slot 12 embracing the bolts 13, a notch 10 at the other end and a part 28 adapted at certain positions to rock on a pin 27. In operation, when the filling flaps 7, 7<1>, 8 are open, the door 4 is locked and the telescopic sections 2 &c. are moved forwardly to extended positions during filling. When it is desired to eject the contents, the flaps 7, 7<1> are closed, the control arm 19 is raised which by means of its connection unlocks the bolt 29 and also by means of cams 23 on the levers raises the arms 24 and through them and the projections 26, the door ends of the thrust rods 9 causing the latter to rock on pins 27 and if in proper position the notches 11 to engage the projections 10. Collapsing or ejecting movement of the section 2 moves the thrust rods 9, 9<1> and causes the bolts 13 to ride up the right hand slot 12 and so unlatch the arm 16 to free the door, continued movement of the thrust rods opening the door.
Patent GB-219993-A (GB)
Title: Method of producing combination photographic pictures
IPC: G03C5/06
Filed: 1924-07-31
Abstract: 219,993. Vessel, H. von. Aug. 4, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Composite photographs and silhouettes. - For producing composite photographs, particularly kinematographic pictures. a view is taken of an object a against a white background and a diapositive is obtained, the half tones being darkened by increased exposure or other intensifying methods, to form a silhouette a<2>. A copy A<2> is then made of the demonstration film together with the silhouette film A<1> so that a free space a<3> is produced; the composite picture is completed from a combination of this copy with the negative of the object a. A view may be taken against a blade instead of a white background, in which case a negative is taken from the diapositive and is darkened to make the silhouette.
Patent GB-1533028-A (GB)
Title: Arithmetic units
IPC: G06F7/38
Filed: 1976-05-05
Abstract: 1533028 Arithmetic unit parity checking INTERNATIONAL BUSINESS MACHINES CORP 5 May 1976 [23 June 1975] 18386/76 Heading G4A An arithmetic unit 20 including output modifying circuitry 23 has a parity generator 24-27 for generating one or more parity check bits from the unmodified output of the arithmetic unit and assembling the generated parity bit(s) with the output of the modifying circuitry, whereby the parity checked output is available earlier in time than would be the case if the parity generator used the modified output. The arithmetic unit described is of the type disclosed in Specification 1,512,476 which is capable of operating on operands in zoned BCD or packed BCD format as well as binary. As well as the add six (for decimal addition) and complement (for subtraction) operations performed by an A or B operand modifier 21, 22 the zone and/or sign codes of the input operands are also modified so that carries can propagate across the sign and zone fields for BCD operations. The output corrector 23 restores the original zoned or packed BCD format. Byte parity generators.-It is shown that for each BCD digit the output of the adder has the same parity as the modified output except for digits coded 1010 and 1011 (hexadecimal A and B). The parity of the sign and zone fields (0000 or 1111 are possible adder outputs) of the unmodified output is the same as the parity of the modified (original) zone fields (1111) and positive sign fields (1111 for zoned and 1100 for packed format). The unmodified and modified sign fields have opposite parities since the negative sign is coded 1101 for both BCD formats. The parity generator/predictor described, Figs. 5- 11 (not shown) comprises AND/OR networks which invert the parity of each output byte for each of its 4-bit groups coded as hexadecimal A or B or as a negative sign. Modifications.-A second adder/subtractor operating on complement operands A, B may be provided to produce a complementary result for comparison with the true result in EXOR circuits to check that no error is introduced by the adder/subtraotors or input modifiers, Fig. 12 (not shown).
Patent GB-256224-A (GB)
Title: A process of, and products for, the toning of photographic proofs
IPC: G03C5/46
Filed: 1926-07-23
Abstract: 256,224. Devienne, E. July 31, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Toning. - Methods are described based upon the action on metallic salts of a hyposulphite decomposed by an acid. A solution of nickel sulphate and sodium hyposulphite to which are added drops of very dilute sulphuric acid deposits on the image a layer of metallic nickel. Two solutions are used. The first containing hyposulphite and nickel sulphate in water serves for fixing the proof. The latter is then dipped into another solution consisting of the above to which a few drops of a 10 per cent solution of sulphuric acid are added. After toning and washing any sulphur deposit may be gently wiped off. Salts or other metals e.g. cobalt, iron, chromium, iron, copper, zinc, silver and gold, and other acids, including organic acids, may be used. Reference is also made to the immersion of an unwashed silver print in a simple solution of acidified hyposulphite. Toning takes place owing to the presence of silver nitrate which all citrate papers contain, but this method gives irregular results. The addition of sulphocyanide is permissible in some cases.
Patent GB-146830-A (GB)
Title: Improvements in the coating of metals with metals of a lower fusing point
IPC: C23C24/10
Filed: 1920-07-05
Abstract: 146,830. Grinlinton, H. G. July 4, 1919, [Convention date]. Coating; fluxes.-A metal surface is provided with a coating of a more easily fusible metal, other than aluminium or an aluminium alloy, by applying a dressing of a mixture consisting of a suspension of finely-divided coating-metal in a suitable medium, sprinkling a flux such as stearic acid over the part so dressed, heating until the coating metal is fused, stopping the heating before the flux is completely volatilized, and then wiping the coating with a cloth or pad. For example, copper or brass mav be coated with tin by the use of a mixture of finely-divided tin, ammonium chloride, glycerine and water, with or without zinc chloride. The surface to be coated is preferably first cleaned bv abrasion.
Patent GB-512181-A (GB)
Title: Improvements relating to auxiliary apparatus for use in dentistry
IPC: A61C1/08
Filed: 1938-06-23
Abstract: 512,181. Dental instruments and appliances. WEIGELE, E. B. June 23, 1938, No. 18697. Convention date, July 5, 1937. [Class 81 (ii)] An apparatus for use in dentistry comprises a pin provided with means for mounting in within the mouth of the patient and a guide for a dental instrument pivoted on the pin so that the instrument may be moved to different places about the pin as axis. The pin 1 is supported by a cross piece 2 and caps 3 Fig. 3 engaging sound teeth, or, if one side of the mouth is edentulous, by an arm projecting from a single cap. A dental instrument, e.g. a drill as shown in Fig. 5, is guided by a block 7 slidably mounted on a guide rail 6 carried by a sleeve 4 on the pin 1. The device may also be used as a support for a sleeve 14 formed as part of an impression tray 13, Fig. 7.
Patent GB-154959-A (GB)
Title: Improvements relating to driving mechanism for a machine for moulding slag, or othermolten material into the form of bricks or other bodies
IPC: B28B1/54
Filed: 1920-04-29
Abstract: 154,959. Williams, S. April 29, 1920. Endless-chain machines for moulding slag &c. into bricks &c. are combined with variable-speed driving-gearing of known type. A belt B moved transversely by a handoperated screw b<1> transmits power between conical drums A<1>, A mounted inversely on parallel shafts. The drum A<1> is driven by fast and loose pulleys a<1>, a<2>. The drum A is connected through gears a<3>, e, a shaft e<1>, and gears e<3>, e<4> to a shaft e<5> in bearings in the frame of the machine. The shaft e<5> carries two sprockets e<6>, which drive an endless conveyer carrying moulds, and three wheels e<7>, which operate as described in Specification 153,083. The gearing is within the conveyer at the delivery end of the machine.
Patent GB-974830-A (GB)
Title: Improvements in electric motors
Inventor: VAUGHAN ROY CYRIL
IPC: H02K23/62
Filed: 1963-05-13
Abstract: 974,830. Electric motors. G. & R. WRENN Ltd. May 13, 1963, No. 18824/63. Heading H2A. A small D.C. motor has a permanent magnet rotor 53 and a wound stator having a plurality of windings 45-50 with one end of each winding connected to a brush which co-operates with a two-segment commutator 14, the other ends of the windings being connected together, so that a rotating magnetic field is produced. As shown, T-shaped polepieces 44 are located by moulded nylon end plates 54, 55 which also act as the shaft bearings, the poles are machine wound with three coils 45-46, 47-48, 49-50, and enclosed by hexagonal yoke 57. A third nylon moulding is located in the yoke and used as the brush holder and outboard bearing support for the commutator assembly. Commutator 14 is built up by forming steps on two pieces of shaft and after inserting insulation 82 (epoxy resin) between them, reassembling the segments 80, 81 and when the insulating resin has set grinding the shaft to the required diameter. Holes 60-62 bored in the moulding act as holders for the carbon brushes 63-65 and pins 66-68 support springs 71 which are anchored in the moulding at 74 and apply pressure to the brushes. In order to replace the commutator, contact plate 84 can be removed by releasing spring 91 and the commutator withdrawn from tongue and slot coupling 78. Connection between the two segments and the resulting short circuit to the supply due to the brush being wider than the insulation between segments is prevented by designing the commutator to run eccentrically so that the bush face remains relatively flat, Fig. 2 (not shown). In operation tags 89, 92 are connected to the supply and current passes via the motor shaft to the commutator and hence in sequence to the stator windings to produce a rotating magnetic field, Figs. 3-8 (not shown).
Patent GB-1188657-A (GB)
Title: Improvements in and relating to Methods Of and Apparatus For Electrostatic Coating
Inventor: MILLER EMERY PARKER
IPC: B05C19/02
Filed: 1967-04-24
Abstract: 1,188,657. Coating apparatus. RANSBURG ELECTRO-COATING CORP. 24 April, 1967 [22 April, 1966], No. 18871/67. Heading B2L. A uniform coating of particles is applied to a surface by applying a sensitized binder to the surface to be coated, forming a cloud of the particles suspended in gas, introducing the surface into the lower portion of the cloud, effecting disposition of said particles in a downward direction onto the binder by gravity and/or electrostatic forces, activating the binder for affixing the deposited particles onto the surface, and removing the non-activated binder and non-affixed particles. An article 10, e.g. a cathode ray tube for a television receiver, after cleaning, washing with a light-sensitized binder and drying to a tacky condition, is placed onto a carriage 33 outside a chamber 11. Inside the chamber 11 air is introduced into compartment 43 from supply 45 and passes through air permeable plate 41 to generate a cloud of phosphor particles present above the plate. The carriage is then moved into the chamber, flanges 37 and 38 sealing the inlet apertures. An electrode 23 is rotated and the article is earthed at 40 through the carriage. After the phosphor particles have been deposited, the article 10 is removed, and a beam of light or like radiation is projected through a dotted imageproducing screen and onto the coated surface. The light will polymerise the polyvinyl alcohol to affix the phosphor particles. After polymerization the coating is rinsed with a solvent, e.g. water to wash away the binder and particles not in the dotted areas. After the dotted coating has dried, the process may be repeated in another fluidizing chamber charged with a phosphor having a different colour phosphorescence and in this way tubes for colour television receivers may be produced. The binder may comprise polyvinyl alcohol, and a chromic salt dissolved in isopropyl alcohol and water.
Patent GB-1149834-A (GB)
Title: Device for indexing and scanning microfilm
Inventor: SLETTEBO MAGNE
IPC: G03B21/11
Filed: 1967-04-25
Abstract: 1,149,834. Strip-film projectors. M. SLETTEBO. April 25, 1967 [April 26, 1966], No.18945/67. Heading G2J. In a microfilm projection viewing device, the film 1 is driven continuously between reels 8 and 9 until the required frame appears on screen 6, a rotating optical compensating device 16, such as a prism on mirror, providing a stationary image on the screen of identifying symbols included in each frame. The device 16 is driven by gear 14 on sprocket wheel 12. The film is divided longitudinally into two parts, one bearing information, the other bearing identifying symbols as in Fig. 2 (not shown).
Patent GB-205182-A (GB)
Title: Improvements in or relating to prepayment gas meters and other automatic machines
IPC: G07F5/24
Filed: 1922-07-11
Abstract: 205,182. South Metropolitan Gas Co., Browne, H. M., Stredwick, E. S., and Stredwick, W. S. July 11, 1922. Change-giving apparatus; coin-slit closing-devices.-The apparatus is for use with prepayment gas meters and other automatic machines. The pennies after freeing the gas meter &c. fall down a shoot formed by plates 4, 5, Fig. 1, into a receptacle 1<a>. Each penny hits a plate 6 and rocks a shaft 7 on which are mounted pawls 8 which engage teeth 9 on a wheel 10 to turn it one tooth at a time. When twelve pennies have entered the receptacle 1<a> the wheel 10 has made one revolution and a pin 12 thereon engages a lever 13 to free a counterweighted sear 17 from a counterweighted arm 20, the counterweight 22 of which drops against a pin 31 on a lever 28 to disengage the hooked end of this lever from a loop 27 on the arm 24 of a pivoted deflector plate 23. The plate 23 is then moved by a counterweight 26 to close the shoot and direct further pennies into a main receptacle 1. At the same time the movement of the plate 23 through an arm 47, link 46, bellcrank lever 44, slide 43, Fig. 10, and a bell-crank lever 41 removes a sliding plate 35 from beneath a slot 34 for shillings in the casing 1<a>. When a shilling is inserted and a knob 39 rotated, a bolt 51, Figs. 10 and 11, is withdrawn from a catch 50 on a door 48 which opens and allows the twelve pennies to be removed. The door has a glass panel 62 through which the pennies can be viewed. When the door is opened it comes against horns 56 and rocks a lever 55 which, through a link 59, moves the lever 28 upwards to re-set the arm 20 and engage its hooked end with the loop 27. When the door is closed it engages horns 57, thereby moving the lever 28 downwards and moving the deflector 23 away from the shoot. At the same time the plate 35 covers the slot 34. The counterweights 22, 26 may be replaced by springs. Coin action, mechanical-connection.-The shilling is inserted in a rotary grooved drum 36 and rocks a lever 54 connected to the bolt 51. It is then discharged down a shoot 61 to the casing 1.
Patent GB-692532-A (GB)
Title: Improvements in or relating to a diffuser for supplying to a room hot air mixed withcooler air drawn from the room
Inventor: MACCRACKEN CALVIN DODD
IPC: F24F1/01
Filed: 1951-08-14
Abstract: 692,532. Ventilating rooms. JET-HEET, Inc. Aug. 14, 1951, No. 19115/51. Class 137 [Also in Group XIII] In a device for supplying to a room hot air mixed with cooler air drawn from the room, a jet of air in the form of a thin sheet is supplied through the long, narrow, sinuous or, as shown in Fig. 6, zig-zag, orifice of a nozzle 17. Hot air from the nozzle 17 draws room air through louvres 14 into a casing 18 fitted into the room wall 10, 11, baffles 36 directing the mixed air out through louvres 16. Re-circulation in the casing is prevented by a member 34 secured to a face plate 12 of the casing screwed to the face-portion 10 of the wall. Brackets 21 support the nozzle 17 in the casing 18. Fan-shaped walls 52, 54, Fig. 6, forming the nozzle 17. are spaced more widely at their lower edges and secured to an apertured plate 50 on a tube 23 which enters an insulated pipe 24 supplying the hot air. Spot welds 62 maintain the spaced relationship of the walls 52, 54 at the top, to which they converge to form the nozzle orifice and they are secured together along their side edges 56. The hot-air flow is controlled by manipulating a knob 33, Fig. 2, attached to a damper 30 by a shaft 32 spring-loaded to retain its adjusted position. A rod, mounted in position, Fig. 6, above the damper 30, has a screwdriver slot 46 and a locking nut 47 at one end so that it may be set to limit the extent of movement of,the damper 30 by means of a finger, Figs. 3, 4 (not shown), provided on the rod.
Patent GB-1520044-A (GB)
Title: Mould for the manufacture of footwear with a sole having an injection-moulded plastics part and flexible material forming at least part of the tread surface of the sole
IPC: B29D35/06
Filed: 1976-05-10
Abstract: 1520044 Making shoe &c soles ANTONIO NOVA Srl 10 May 1976 [30 May 1975] 19123/76 Heading A3B [Also in Division B5] A preformed strip 8, which is incorporated as at least part of a tread surface of a plastics sole 7 during its injection moulding onto a shoe ramp 1, is retained in the injection mould against displacement under the injection pressure, by at least one pin 9 which extends from a mould part 2 carrying the ramp 1, to clamp the strip 8 against a mould base 3. Where the strip 8 extends over all the tread surface, it is provided with a hole 8a, in the region in which injection is effected through a channel 6 of the mould base. The strip 8 is manually inserted into the mould, which also comprises a peripheral frame 4 of two or more parts which are displaceable laterally of the base 3. The shoe comprises a slipper, or house shoe, with the strip 8 being of textile material, such as cord.
Patent GB-174552-A (GB)
Title: Safety circular saw protector
IPC: B27G19/02
Filed: 1921-07-16
Abstract: 174,552. Spiller, G. E. H. July 16, 1921. Circular-saw machines.-A guard for a circular saw comprises a sliding member B with a gap for carrying the log to be sawn working between side plates A and within a member K which is clamped to the bench and provides a top cover for the saw. A stop G on the sliding member limits the feed.
Patent GB-822985-A (GB)
Title: Improvements in or relating to methods of and apparatus for, producing multifocal lens blanks and multifocal lens blanks so produced
IPC: C03B23/22
Filed: 1957-06-18
Abstract: 822,985. Multi-focal lenses. AMERICAN OPTICAL CO. June 18, 1957 [June 22, 1956], No. 19230/57. Class 56. Multi-focal lenses are made by positioning major blanks 10 having countersinks 12 therein in overlapping relationship in holders 32 on a conveyer 16 traversing a tunnel 46 surrounded by heaters 56, 60, 64 of different intensities. The blanks pass under an opening 72 in the tunnel roof through which a continuous ribbon 14 of glass descends from a heated tank 68 to mould and fuse itself into the countersinks as a continuous strip. The blanks and attached strip continue to move through the annealing furnace 54 whereafter the ribbon is broken between each blank so that the part fused in the countersink forms the blank of the minor segment.