baber/WOPTO huggingface dataset:
Patent GB-1459562-A (GB)
Title: Nuclear reactor fuel elements
IPC: G21C3/338
Filed: 1974-03-07
Abstract: 1459562 Fuel elements UNITED KING- DOM ATOMIC ENERGY AUTHORITY 19 Feb 1975 [7 March 1974] 10243/74 Heading G6C A fuel element has wire wrap spacer means comprising at least one wire helically wound about its longitudinal axis in the manner of an open coil spring and wound about the fuel element in a helical path as that it makes contact with the fuel element in a series of regularly spaced intermittent points. In one embodiment, shown in Fig. 1, the fuel element 1 comprises UC enclosed within a stainless steel sheath and has a wire wrap 2 which serves to space the  fuel element from adjacent fuel elements in a bundle enclosed by a peripheral wrapper (not shown). The wire wrap 2 comprises a single wire helically wound about its longitudinal axis. A wire wrap of this form enables coolant to flow between the wrap and the fuel element between the contact points while it also has sufficient transverse stiffness to maintain constant spacing between the fuel element and adjacent fuel elements of the bundle under normal operation. In alternative embodiments, the wire wrap comprises (Fig. 2, not shown) two wires of equal diameter interwound with each other and wound about the fuel element, and (not shown) a first wire having a second wire of smaller diameter helically wound about it, the wound combination being wound about the fuel element.
Patent GB-997488-A (GB)
Title: Improvements relating to controllable rectifier circuits
Inventor: EASTOP ROBERT HENRY
IPC: H02M3/135
Filed: 1963-03-15
Abstract: 997,488. Semi-conductor switching circuits. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Feb. 26, 1964 [March 15, 1963], No. 10320/63. Heading H3T. A turn-off circuit for a controlled rectifier (SCR) comprises an oscillatory circuit, set into oscillation by a triggered switching device, the oscillations being terminated by a unilaterally conductive device connected between a tapping on the inductor of the oscillatory circuit and a point of reference potential. As shown in Fig. 3, SCR4 is triggered by means not shown when it is required to connect the supply at terminals 1, 2 to a load 5. SCR4 is turned off by triggering SCR8 which discharges capacitor 9 resonantly via inductor 3 so that the cathode voltages of SCR's 4, 8 are reversed so that these SCR's are turned off. Diode 13 terminates the oscillation if SCR8 again becomes conductive and thus prevents the resonant build up of voltage reaching dangerous limits. Diode 13 is connected to a tapping on inductor 6 so that the voltage at the anode of SCR8 may reach several times the supply voltage at 1, 2. The circuit is protected against increase in supply voltage at 1, 2 by SCR's 11, 12 one or other of which is triggered by a voltage sensitive circuit 14 before diode 13 operates. At the end of each turn-off operation the voltage across capacitor 9 is thus maintained independent of supply voltage variations. In Fig. 1 (not shown) SCR's 11, 12 are omitted. In Fig. 4 (not shown) details 11, 12, 13 are replaced by a single SCR triggered by a comparator circuit comprising a Zener diode and a conventional diode, which compares the voltage at the cathode of diode 7 with that at terminal 2.
Patent GB-148620-A (GB)
Title: Improvements relating to the building of house walls and like structures
IPC: E04B2/28
Filed: 1919-04-25
Abstract: 148,620. Mitchell, J. April 25, 1919. Reinforced block-work walls; double walls; wall-ties.-Blocks a, Figs. 1 and 2, formed with shouldered ends d, and grooves b, and a central aperture c are laid so that the apertures c in one course occur over the joint in the course below, and T-shaped reinforcements g are inserted in the holes c and joints, with the heads of the tees lying in the grooves b, the whole being grouted up. The tees may consist of flat stems with a round bar inserted through the top and having the ends turned down; or bent wire tees may be used. The spaces f may also be bridged by short pieces of metal laid in the grooves b to strengthen the vertical joints. To form a cavity wall, slabs k, Fig. 3, are spaced by pieces l, Fig. 4, having lugs l<1> at the ends and projections to fit into grooves on the slabs k. Ties m may also be used, the stems having eyes o to engage the stems of the ties g. Instead of the slabs k, large sheets equal in height to two blocks may be tied to the main wall by ties p, Fig. 5, fitted with spacing- washers q, Fig. 6.
Patent GB-102030-A (GB)
Title: An Improved Coffee-roaster.
Inventor: LEAO FRANCISCO GARCIA PEREIRA
IPC: A23N12/10
Filed: 1916-07-22
Abstract: 102,030. Leao, F. G. P. July 22, 1916. Roasting granular substances; sampling granular materials.-A coffee-roaster comprises a roasting-compartment formed by two semi-cylindrical parts A provided with inturned interlocking flanges B which serve as agitators, and end pieces D which are mounted on the supporting- trunnions H, J. One end piece D is provided with an aperture F, which is adapted to be covered by a rotating shutter G. The trunnion J is extended and is provided with apertures R which permit the contents of the trunnion to be seen through a glass tube T. The trunnion is partitioned by a barrier S mounted on a tie-rod M, and a properly roasted sample of coffee is inserted in the end portion of the trunnion, so that this sample and the coffee undergoing roasting may be compared through the tube T. A sleeve K, also provided with apertures to inspect the samples, extends along the trunnion J and is connected at one end to the shutter G. To hold the shutter in its open or closed position, the further end of this sleeve is provided with notches adapted to be engaged by a detent spring C', which also engages a second sleeve A<1> locked to the cap N at the end of the trunnion.
Patent GB-1235671-A (GB)
Title: Rotary internal combustion engine
Inventor: KNEE GERALD JOHN
IPC: F02B53/00
Filed: 1967-03-02
Abstract: 1,235,671. Rotary internal combustion engines. G. J. KNEE. June 4, 1968 [March 2, 1967; March 4, 1968], Nos.10021/67 and 10400/68. Heading F1F. A rotary I.C. engine comprises a casing 6, having a cylindrical bore, an inlet port (not shown) and an exhaust port 9, an even number of vanes, four A, B, C, D shown, pivoted about an axle 3 disposed centrally of the casing bore with the vane tips engaging the bore, an eccentrically mounted rotor 1 having axially-extending slots through which the vanes pass, a cam or cams 7 formed on the axle to lift one or more alternate vanes, vanes A and C, away from the cylindrical bore and telescopic sleeves 8 between a lifted vane and a preceding vane in the direction of rotor rotation. In operation, fuel/air mixture passes into one or other of chambers AD, CB when on rotation of the rotor one or other of rotor ports 11 is in register with an inlet duct 10. These chambers initially increase in volume and then decrease in volume to compress the charge, the telescopic sleeves closing the exhaust port 9 on passage of the chambers therepast. At a predetermined position, vane A or vane C is lifted away from the casing bore, vane C as shown in Fig. 6, whence the charge is transferred to the; following chamber, chamber CD, in which it is re-compressed and on further rotation of the rotor is ignited by a spark-plug 12. In Fig. 6, the charge is being fired in chamber BA, inducted into chamber AD, exhausted from chamber DC and the compressed charge in chamber CB transferred to chamber D. C. The engine may also function as a diesel engine in which air only is compressed and the spark-plug 12 is replaced by a fuel-injector.
Patent GB-104877-A (GB)
IPC: F16D27/00
Abstract: 104,877. Vulkan Maschinenfabriks Akt.-Ges. Oct. 22, 1913, [Convention date]. Clutches, friction.-In electro-magnetic friction clutches, both the fixed and the movable clutch parts carry electrical windings, which have the effect of creating induced currents, and thus increasing the driving-torque during starting. The winding in the movable part may be cut out automatically or by hand at the end of the starting period, and its action may be regulated by the use of resistances &c. The clutch parts may be laminated, or may be formed from helically wound metal strips.
Patent GB-109039-A (GB)
Title: Improved Construction of Gas-holder Crowns, and Crown Framings.
IPC: E04H7/06
Filed: 1917-07-21
Abstract: 109,039. Dempster, R. & J., and Beard, G. F. H. July 21, 1917. Holders.-In a gas-holder crown or crown framing, the bracket bars c for supporting the crown sheets a are mounted upon the rafters b and are of approximately circular formations, so that when in position, they form concentric circles, or parts thereof, about the centre of the crown or framing. The bracket bars may be slightly spiral and arranged in " step " form, as shown at h, Fig. 5, or the ends of successive bars, which are shown adjacent in Fig. 5, may be spaced apart so as to spread the support for the crown sheets. The ends of the bars may pass nexions. The crown sheets a may rest upon, or underneath the rafters for the purposes of conbe secured to, the bars c.
Patent GB-882858-A (GB)
Title: Improvements relating to neutral merocyanine dyes
IPC: G03C1/22
Filed: 1960-03-24
Abstract: Merocyanine dye complexes are obtained by mixing a merocyanine dye of the general formula <FORM:0882858/IV (c)/1> wherein R1 and R4 are alkyl groups of 1 to 4 carbon atoms, cycloalkyl, carbalkoxyalkyl, acetoxyalkyl or diacylamino groups, and one of R2 and R3 is hydrogen and the other is hydrogen, an alkyl group of 1 to 4 carbon atoms, or an aryl group, with an aqueous solution of silver nitrate in an amount to provide 0.5 to 300 moles of silver per mole of dye. Examples are given of complexes formed from dyes wherein R1 is methyl or ethyl, R4 is methyl, ethyl, butyl, cyclohexyl, diacetylamino or carbethoxy-methyl, R2 is H or methyl, and R3 is H, methyl, ethyl, propyl or phenyl.  Specifications 485,110, 519,895, 534,958 and 786,176 are referred to.
Patent GB-1287276-A (GB)
Title: Improved process for the production of active carbons
Inventor: WENNERBERG ARNOLD NELS
IPC: C01B32/336
Filed: 1969-09-09
Abstract: 1287276 Activated carbon STANDARD OIL CO 9 Sept 1969 [18 Sept 1968] 10578/72 Divided out of 1287275 Heading C1A Activated carbon is prepared by heating an aromatic acid at 200-275‹ C. for 1-4 hours in an inert atmosphere and then at 350-500‹ C., preferably for “-¥ hour. The acid may be petroleum coke acid and the inert atmosphere may be N 3  or Ar.
Patent GB-769628-A (GB)
Title: Cation exchangers
IPC: C08F8/42
Filed: 1955-04-13
Abstract: Cation exchange resins containing selenonic acid groups are prepared by heating with selenic acid a cross-linked high molecular weight organic compound containing benzene nuclei which are capable of sulphonation, e.g. styrenedivinylbenzene copolymers, phenol-formaldehyde resins or condensation products of alkylene dichlorides with aromatic hydrocarbons in the presence of Friedel-Crafts catalysts.  The selenic acid may be diluted with concentrated sulphuric acid or used in the presence of copper or silver selenate.  In Examples (7) and (8) molybdenum ions are absorbed from solution by treating an exchanger with a solution of molybdenum in a mixture of sulphuric and nitric acids, and the exchanger regenerated with ammonium hydroxide solution. Specifications 474,361, 489,437, 577,707, [all in Group IV], 714,367 and 717,276 are referred to.
Patent GB-115966-A (GB)
Title: Improvements in Grooved Pulleys or the like.
IPC: F16H55/50
Filed: 1917-07-24
Abstract: 115,966. Powell, W. H., and Corporation of the County Borough of Newport. July 24, 1917. Trolly pulleys.-A trolly wheel for electric tramways comprises two preferably similar side portions 3, and a grooved central portion 6 which may be replaced when worn. The part 6 fits on concentric bosses 10 on the side parts 3, and relative rotation of the parts is prevented by radial projections 8 on the part 6 which engage grooves in the bosses 10, or by other mutually engaging means between both side portions and the part 6.
Patent GB-305188-A (GB)
Title: Improvements in or relating to exhaust arrangements for internal combustion engines
IPC: F02F1/42
Filed: 1928-04-11
Abstract: 305,188. Lorenzen Ges., C. Feb. 2, 1928, [Convention date]. Cylinders, pipes and passages of.-Exhaust pipes and passages are of diffuser form and have no abrupt change of cross-sectional area. To effect this poppet valves 3 may have integral or attached elements 6, which also act as heat insulators. The Specification as open to inspection under Sect. 91 (3) (a) comprises also convergent passages extending from piston-controlled ports, which may be connected to divergent pipes. This subject-matter does not appear in the Specification as accepted.
Patent GB-454795-A (GB)
Title: Improvements in and relating to apparatus for mottling tiles and the like
IPC: B28B11/04
Filed: 1935-04-06
Abstract: <PICT:0454795/III/1> <PICT:0454795/III/2> An apparatus for producing mottled effects on tiles or the like comprises a tool capable of dabbing colour on to the surface of the tiles, and means for moving the tool to and from the tiles, and also for swinging it from side to side, in order to vary the position of contact with the tiles as they are carried along by a conveyer.  The tool 23 is attached to an arm 20, Fig. 1, which is pivoted by a bolt 35 to a member 36 secured to a bracket 18 mounted on an horizontal shaft 17.  A rotating cam 13 is formed with teeth 14 which engage the free end of the bracket 18 and rock it in a vertical plane, so that the tool carried by the arm 20 is moved to and from the tiles as they are carried along by a conveyer 37.  The horizontal shaft 11 on which the cam 13 is secured also carries at one end a cam 15, Fig. 2, which rocks an arm 30 in a direction transverse to the movement of the bracket 18.  The arm 30 is connected to a rod 32 which is attached to the arm 20 at 34, so that the cam 15 causes the arm 20 to swing and move the tool from side to side over the tiles on the conveyer 37. The cams may be shaped to impart either regular or irregular movements to the tool. In a modification, the tiles may be held face downwards between grips and the cams may be arranged to lift the tool into contact with the tiles.  The tool 23 comprises a container 23<1> and a pad 27 of loofah, sponge, or the like fitted into or over an aperture in the outlet in the container.  Colour flows from a reservoir 39 through a flexible pipe 38 to the interior of the container 23.
Patent GB-575925-A (GB)
Title: Improvements in lifting trucks
IPC: B62B3/06
Filed: 1943-07-01
Abstract: 575,925. Lifting trucks. TRIGGS, W. W. (Yale & Towne Manufacturing Co.). July 1, 1943, No. 10697. [Class 78 (iii)] [Also in Group XXXII] A lift truck having a lifting head 10 supported on wheels 10a and an elevating platform 39 supported at its rear portion by wheels 42a has the forward end of the platform mounted for vertical sliding movement on the lifting head and prevented from pivotal movement in both vertical and horizontal planes. The platform 39 is fixed to a vertical member 19 having cheeks 18 on which are mounted rollers 16 riding in channel section uprights 14 fixed to the frame 10 of the truck. A hydraulic ram 30 is mounted between brackets 25 on the member 19 and bearings 32 on the frame 10 and is operated by a treadle 30a for raising the platform. Rollers 51 on the member 19 co-operate with cams 53 pivoted to the channel uprights 14 at 54 as the platform is raised to rotate the links 42 carrying the rear wheels 42a through connecting rods 45 so that the rear portion of the elevating platform is simultaneously lifted. In the lowermost position of the platform 39 the lower rollers 16 rest upon a cross member 20 and a stop 41 on the link 42 abuts against the under side of the platform. The connecting rods 45 are adjustable in length by cross bars 65 connected by bolts 71 and pressed apart by springs 70 threaded on the bolts, or a turnbuckle adjustment may be used. In a modification, Fig. 9, the pivot 76 of the link 75 supporting the rear wheel is mounted in a block 77 slidable on the underside of the elevating platform and adjusted by a screw 82. Further rollers 88, 89, 90 and 91 may be provided to assist the truck entering between the floors of a pallet supporting the load. The truck is driven by a motor supplied by a battery 12 and has a front steering wheel 10a. Specification 575,926 is referred to.
Patent GB-882934-A (GB)
Title: A method of separating or grading minerals in jigging machines
IPC: B03B5/24
Filed: 1959-03-26
Abstract: 882,934. Jigs. HAACKE, A. March 26, 1959 [April 2, 1958], No. 10708/59. Class 82(2). The boundaries between the layers of minerals separating in a jigging machine are enlarged to form a layer of measurable depth by adding a granular material, the specific gravity of which corresponds to the specific gravity of separation. As shown, two or more kinds of granular materials may be used more than two minerals. The layers of added granular materials may be divided into two parts as shown at 19, one part accompanying the lighter mineral, and the other accompanying the heavier, or it may be split up as at 16 and 17 into a fraction which comprises the bulk of the added layer, and boundary zones accompanying the separated minerals. The added material may be recovered from the minerals by magnetic, electrostatic or size separation.
Patent GB-474143-A (GB)
Title: Improvements in roller bearings
IPC: F16C19/49
Filed: 1937-04-15
Abstract: 474,143. Conical roller bearings. GAYNOR, G. A. April 15, 1937, No. 10709. [Class 12 (i)] In a conical roller bearing in which at the large end of the rollers C a ring of thrust balls e is arranged between a thrust ring d, and an abutment flange s on one of the races, the thrust ring d makes contact with each roller directly on the axis of the roller. As shown, the abutment flange s is on the inner race ring a, and a flange f is fitted at the other end of the race. In a modification the flange s is secured detachably to the outer race and the ring f is omitted. Specification 230,251, [Class 12 (i)], is referred to.
Patent GB-733527-A (GB)
Title: Improvements in and relating to apparatus for infusing beverages
Inventor: STILL FREDERICK WILLIAM
IPC: A47J31/30
Filed: 1952-06-27
Abstract: 733,527. Valves, handles for actuating. STILL & SONS, Ltd., W. M. June 29, 1953 [June 27, 1952], No. 18036/53. Divided out of 733,488, [Group VI]. Class 135. [Also in Group VI] The actuating handle of a disc valve is arranged so that it can only be removed when the valve is in the " off " position. The part 58, Fig. 3, of the handle 32 moves along an arcuate slot 62 in the valve sealing plug 64. Another slot, Fig. 2 (not shown), in the plug 64 extends at right angles to the slot 62 to allow the handle to be removed.
Patent GB-933652-A (GB)
Title: Lathing
IPC: E04F13/04
Filed: 1961-03-24
Abstract: 933,652. Laminates. K-LATH CORPORATION. March 24, 1961 [May 16, 1960], No. 10840/61. Class 140. [Also in Group X] A lathing comprises a first sheeting 10, of for example paper, having elongated openings 12 arranged therein in a series of parallel rows, and two series of parallel wires 16, 14 respectively intersecting in a right angular relationship at said openings and welded together at their intersections, and an additional sheeting 20 adhesively secured to the first sheeting 10, the wires 14 being located between the sheetings 10, 20. The sheeting 20 may be of waterproofing or of waterproofing and insulating material, and may be of waterproofed paper or aluminium.
Patent GB-450270-A (GB)
Title: Improvements in or relating to knitting instruments
IPC: D04B35/08
Filed: 1935-04-09
Abstract: 450,270. Knitting-machines. HOSIERY DEVELOPMENTS, Ltd., 30, Park Row, Nottingham, and JONES, T. H., The Aspens, Breck Hill Road, Woodthorpe, both in Nottinghamshire. April 9, 1935, No. 10947. [Class 74 (ii)] Needles.-A needle of the kind described in Specification 441,010 has its beard terminating in a small hook 13, the tip of which is further away than its bottom from the shank 1 and preferably further away than the inside of the hook at the bottom by a distance b. Specification 329,098, [Class 74 (ii)], also is referred to.
Patent GB-1198091-A (GB)
Title: Improvements in or relating to Calendars
Inventor: CAVENAGH MICHAEL RICHARD
IPC: B42D5/04
Filed: 1967-03-08
Abstract: 1,198,091. Calendars. J. EVERSHED & CO. (BOW) Ltd. 7 March, 1968 [8 March, 1967], No. 10972/67. Heading A4X. [Also in Division G3] A calendar comprises a transparent front sheet (11) secured to an opaque or transparent back sheet (10) along a line 13 partway up the sheets and along edges to form compartments 16, 17 access to each of which is between unattached edges e.g. the edges 18. A picture is accommodated in the upper compartment 16 and six separate sheets printed for different months are stored in the lower compartment 17. Alternatively daily or monthly tear-off date sheets may replace the six sheets, and the front sheet of the compartment may have an aperture to enable a tear-off sheet to be removed. More than two compartments may be provided. (For Figure see next page.)
Patent GB-754751-A (GB)
Title: Fixed-base telemeter
IPC: G01C3/10
Filed: 1954-04-14
Abstract: 754,751. Range-finders. ZEISS-STIFTUNG, C., [trading as ZEISS, C. [Firm of]]. April 14, 1954 [May 9, 1953], No. 10980/54. Class 97 (1), In a telemeter comprising at one end of a base a sighting device fixed with its line of sight perpendicular to the base and a traversable sighting device at the other end, the latter device, in its movement brings a number in a direction parallel to the line of sight of the fixed device and in the varying plane, which member carries a pointer extending perperidicularly to the varying plane and indicating on a scale the horizontal range of even elevated point sighted by the two sighting devices. As shown in perspective in Fig. 1, a base 1 rotatable about a horizintal axis on forks 2 which are themselves rotatable about a common vertical axes, has a sighting telescope 3 fixed at right angles thereto and carries a second telescope 4 rotatable about an axis C fixed to the base 1. In operation the base is rotated about horizontal and vertical axes until the telescope 3 is sighted upon an elevated target 2. The telescope 4 is rotated until it also is sighted upon Z, this rotation moving a rod 5 which is attached to the telescope 4 perpendicular to its line of sight and lies in the ranging plane. The rod 5 engages at its other end a member 7 sliding on a rod 8 which is maintained in the ranging plane parallel to the line of sight of the telescope 3. The member 7 carries a pointer 9 arranged perpendicular to the ranging plane and moving over a scale 11 on a rod 10 which is maintained horizontal and parallel to the horizontal projection of the line of sight of telescope 3. This scale gives a directed measure of the horizontal range &c. In the modification shown in Fig. 3 the fixed and movable telescopes 3 and 4 are replaced respectively by fixed and movable mirrors 17, 18, reflecting beams from the target Z along the line of the base 1 into a common ocular. A rod 5 fixed to the mirror 18 engages a sleeve 21 rotatable about a point D of a lever 20 pivoted about the mid-point E of the base 1, the length DE being equal to half the base length. The end of the lever 20 slidably engages a sleeve 7 engaging a rod 8, as shown in Fig. 1, and similarly carrying a pointer moving over a horizontal scale.