baber/WOPTO huggingface dataset:
Patent GB-1191703-A (GB)
Title: Composite Catalyst and Process for its Preparation
IPC: B01J29/08
Filed: 1968-02-06
Abstract: 1,191,703. Cracking catalysts. W. R. GRACE & CO. 6 Feb., 1968 [7 Feb., 1967], No. 5844/68. Heading B1E. Cracking catalysts comprise (I) a siliceous matrix (2) a synthetic zeolite in the rare earth form that has been stabilised by calcination and i(3) a naturally occurring crystalline mineral. The catalyst may be prepared by mixing the components and spray drying. Component (1) may be SiO 2 -Al 2 O 3  component (2) may be a R.E. exchanged form of zeolites X, Y or L and component (3) kaolin, halloysite, bentonite, mordenite or chasazite. The catalyst has a dual pore structure in that compound (1) provdes pores <100Š and component (3) provides pores of >100Š. Additionally the zeolite may contain Mg<SP>++</SP> or Ca<SP>++</SP>.
Patent GB-812972-A (GB)
Title: Improvements in or relating to polymeric films
IPC: B29C55/06
Filed: 1956-02-24
Abstract: Polyethylene or other polyalkylene films, such as polypropylene or polyisobutylene films, are oriented by stretching the unoriented film until its length is 2 to 4 times its original length, in a longitudinal direction, at a temperature T1 within the range 50 DEG C. to 5 DEG  C. below the melting temperature of the film, heating the film to a temperature T2 which is higher than temperature T1, but below the melting temperature of the film, while the film is not stretched, stretching the film in the longitudinal direction at temperature T2 so that its length after the second stretching is at most twice that after the first stretching, maintaining the film at the temperature T2 while allowing the film to shrink, and cooling the film while preventing further shrinkage of the film in the longitudinal direction.  The term "polyethylene film" is defined as including films of solid pyrolysis products of solid polyethylene, and also films of copolymers of ethylene with less than 25 per cent of other material such as styrene, isobutylene, vinyl acetate and vinyl chloride.  In an example, a polyethylene film having a melting temperature of 105 DEG  C. is wound from a supply roll on to a series of four driven rolls heated internally to 70 DEG  C.  The film is then led to a series of four rolls also maintained at 70 DEG  C. and all rotating at a higher speed than that of the previous four rolls so that the film is stretched 3.5 times in the longitudinal direction.  Next the film is passed over a series of three rolls driven at the same speed as the previous four rolls but heated to 100 DEG  C.  The film is then annealed by passing it over a series of four rolls also heated to 100 DEG  C. but rotated at a higher speed than the previous three rolls so that the film is stretched 1.3 times.  Next the film is passed over three rolls maintained at 100 DEG  C. and all rotating at the same speed, which is less than that of the previous four rolls, so that the film is allowed to contract 23 per cent.  Finally the film is passed over a series of seven rolls, all rotated at the same speed as the previous three rolls, and thereafter collected on a wind-up roll.  Each successive roll of the series of seven is maintained at a lower temperature than the previous roll, to cool the film gradually to room temperature.  All the rolls, except the supply and wind-up rolls, have the same diameter, and the film passes over them in a sinuous path.
Patent GB-329395-A (GB)
Title: Improvements in boiler furnaces fired with pulverulent fuel
IPC: F23C6/04
Filed: 1929-02-22
Abstract: 329,395. Yarrow, H. E. Feb. 22, 1929. Pulverulent-fuel furnaces.-Pulverulent-fuel is burnt in a portable combustion chamber A arranged in front of the flue B of a boiler, the chamber being provided with an opening in its front wall encircled by a secondary air trunk F to which is secured the primary air trunk and burner E, D. The bottom of the combustion chamber is dropped to form an ashpit A<2>.
Patent GB-1189422-A (GB)
Title: Elongate high-pressure mercury vapour discharge lamp
IPC: H01J61/30
Filed: 1968-02-06
Abstract: 1,189,422. Mercury-vapour lamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 6 Feb., 1968 [9 Feb., 1967], No. 5902/68. Heading H1D. A high-pressure mercury vapour discharge lamp, the filling of which includes halide partly in liquid form at the operating temperature, has an envelope which includes a central part 19 of uniform cross-section, joined at one or (as shown) both ends to a conical part 20 by an annular ledge 21 which lies at an angle of between 90 and 110 degrees with the wall of the central part, which ledge is screened from direct heat radiation from the adjacent electrode 14 by the conical part 20 whereby liquid halide is trapped at the ledge, and unsteady operation due to droplets of halide draining down to the electrode, and being suddenly evaporated thereby, is avoided. Heat shields 25, 26 of zirconium oxide maintain the conical portions at a sufficient temperature to prevent condensation of halide therein. The filling may include the iodides of Na, K, In, Tl, Sn, or Li, together with argon, and the lamp may have a double envelope (Fig. 1, not shown).
Patent GB-129050-A (GB)
Title: Improvements in Gas Burners.
Inventor: HUNTER JOHN
IPC: F23D14/04
Filed: 1918-06-01
Abstract: 129,050. Hunter, J. June 1, 1918. Atmospheric gas burners. - A heating-burner is provided with a constricted part D immediately above the primary mixing-chamber, and additional air is admitted beyond the part D. The upper face G of the part is concave, while the lower face F is flared at an angle of approximately 65 degrees with the axis of the burner. The top of the nipple B is chamfered so as to be parallel with the lower face of the part D, a space of no considerable capacity being left between the nipple B and the part D.
Patent GB-349457-A (GB)
Title: Improvements in or relating to neck-tie presses
IPC: A47G25/78
Filed: 1930-02-22
Abstract: 349,457. Winding webs. JONASSEN, A. C., Monomark House, High Holborn, London. Feb. 22, 1930, No. 5921. [Class 100 (i).] A press for removing the creases from neckwear, ribbon, &c. comprises a pair of rollers 1, 2, the former of which serves for winding the necktie &c. on and the latter for bearing against it under the action of a spring 9. A slot 10 in the roller 1 serves to engage the end of the necktie. The roller 1 may be provided with a winding handle.
Patent GB-374020-A (GB)
Title: Improvements in or relating to liquid expansion and contraction vessels for use withliquid filled receptacles
IPC: H01F27/14
Filed: 1931-02-26
Abstract: 374,020. Oil switches. BRITISH ELECTRIC TRANSFORMER CO., Ltd. and CLARKE, L., Hayes, Middlesex. Feb. 26, 1931, No. 6034. [Class 38 (v).] Expansion vessels for oil-filled transformer, switch, and like tanks are made of such shape that the cross-sectional area decreases from the lower to the upper part of the vessel in order that as the oil level rises with temperature the area exposed to air is decreased. As shown in Fig. 1, the vessels may be of conical or pyramidal form, or as shown in Fig. 5 of dome or semi-cylindrical shape. An opening 3 is provided in the bottom for communication with the oil tank ; an opening to air 5 and an inspection cover 6 is provided at the top, and an oil gauge 7 is provided at the side. The bottom is shaped to provide a moisture trap 8 either at the sides, Fig. 1, or at the centre, Fig. 5, a drain plug or cock 9 being fitted thereto.
Patent GB-998555-A (GB)
Title: Structural support unit, e.g. for a display device
Inventor: NIKOLIN BARON HUGO
IPC: A47F5/01
Filed: 1961-02-20
Abstract: 998,555. Stands. POROSAN (D.I.Y.) Ltd. Feb. 20, 1962 [Feb. 20, 1961; March 23, 1961; June 28, 1961], Nos. 6234/61, 10713/61 and 23476/61. Headings A4H and A4W. Display and like stands are built up from members 1 consisting of lengths of tubing bent to define a rectangle and perforated at the apices 3 so that a tube or rod 4 may extend through the perforations and vertical limbs of the tubes to link the units together. Rods 4 are collected by a ring 5 and cap 6 and a centrally perforated table top 7 has projections 8 holding members 1 in uniformly spaced positions. The tubes may be polygonal or ridged to restrain relative rotation of adjacent members.
Patent GB-902674-A (GB)
Title: System for baking carbonaceous products or the like
IPC: F27B9/08
Filed: 1959-02-24
Abstract: 902,674. Heat-treating carbon electrodes; gas-fired furnaces. SWINDELL-DRESSLER CORPORATION, and ALUMINUM CO. OF AMERICA. Feb. 24, 1959 [Feb. 28, 1958], No. 6303/59. Classes 51 (1) and 51 (2). Carbonaceous products, such as electrodes for use in aluminium production, are heat-treated in a tunnel furnace without saggers or lateral supports. The electrodes, on tracks 17 having close-fitting machined ends, move into a preheating zone, Fig. 3, from an entry part with a door at each end and a pipe for the supply of an inert purging gas. Pipes 34 traversed by hot gases from the heating chambers of subsequent sections provide heat, and side-plates 52 on the trucks 17 dip into condensed tarry products given off as the electrodes are heated, which collect in troughs 51 at the sides of benches 29. At the entry end, the condensate escapes through holes in the troughs to a trough 48 in the bottom of the furnace, where it is kept liquid by a steam coil 50 and removed from an outlet 49. The space below the trucks is kept cool by nozzles delivering cool inert gas toward the entry at the beginning of a second preheating section, and by cooling pipes in the second preheating and heating sections. The second preheating section has heating chambers 36, Fig. 4, left-hand part, formed by loosely interlocking tiles on the side benches 29. Combustible gases given off by the electrodes are drawn in to chambers 36 by air jets 68, Fig. 6, and supply fuel for the preheating section. In the following section, burners in heating chambers 39, Fig. 4, right-hand part, raise the electrodes to the maximum temperature. The walls of chambers 39 are formed of hollow tiles 40, which may have holes 82 so that the interior of each tile acts as a flue. The tiles fit together loosely so that deposits on the outside of chambers 39 may be burnt off by gases issuing from the chambers. In the final section of the furnace, the electrodes are cooled by air pipes, some of which may supply heated air for combustion. The heating chambers 36, 39 communicate through a restricted, dampered passage and the pressure in the chambers 36, 39 is controlled by means of suction fans connected to collecting drums for the combustion products so as to be slightly below and slightly above the pressure in the furnace proper, respectively. The gases having a high oxygen content from the preheating combustion chambers 36 are fed through the preheating pipes 34 and discharged, while the gas from the chambers 39 are arranged to be sufficiently inert to be used in curtain jets, roof jets, under-car jets or as purge gases for the entry and exit sections. In the sections having combustion chambers, sand seals are formed at the sides of the trucks.
Patent GB-715977-A (GB)
Title: Improvements in or relating to drill bits
IPC: E21B10/52
Filed: 1952-03-11
Abstract: 715,977. Earth-boring rotary drill bits. HUGHES TOOL CO. March 11, 1952 [Nov. 20, 1951], No. 6311/52. Class 85. In an earth-boring rotary drill bit, the rolling cutters, which are mounted on inwardly and downwardly converging shafts secured to the drill body 1, are provided with rows of wearresistant inserts 30 ovoid shaped d ends protruding from the surfaces thereof. The inserts on each cutter are mounted in peripheral lands 21, 22, 23 so spaced that, when the cutters are mounted on the shafts, the rows of inserts of adjacent cutters' interfit. Some inserts protrude both from the bottom cutting surface and an intersecting surface of the cutter defining the bore of the hole.
Patent GB-781251-A (GB)
Title: Apparatus for making a shell mould
IPC: B22C23/00
Filed: 1956-02-29
Abstract: 781,251. Moulding-machines. VALYI, E. I. Feb. 29, 1956, No. 6388/56. Class 83 (1). [Also in Group XXX] Shell-moulding apparatus comprises an invertible dump-box 19, having closure-means 25 forming a closed compartment 23 in the box, and openable when the box is in an upright position to allow moulding-mixture to fall on to the pattern 17, and closable when the box is in the inverted position to confine loose moulding- mixture in the compartment, stop-means 32, 33 being provided to limit the rotational movement of the box in at least one direction when it reaches a predetermined inclined position after passing through a vertical position so as to cause the moulding-mixture in said compartment to level itself by gravity. The dump-box is rotatable between positions A, B, Fig. 1, by a handwheel 15, and the closure-means 25 consists of louvres actuated by a common link 28. When the compartment is substantially full of moulding-mixture, then after formation of the shell 34, inversion of the box to a vertical position to return excess mix to the compartment will leave the said excess unevenly distributed, as shown in Fig. 6, and the louvres 25 cannot be closed. Rotation is therefore continued until halted by the stop 33, and the mix is distributed as shown in Fig. 7. When the compartment is only partially filled, excess will return to the compartment 23 upon inversion, but return to a vertical upright position will leave the mix distributed as shown in Fig. 14, and dumping would result in an uneven distribution over the pattern. Rotation is therefore continued until halted by the stop 32, resulting in an even distribution in the compartment 23, Fig. 15.
Patent GB-116316-A (GB)
Title: Improvements in Machinery for Moulding Dough.
Inventor: BLACKLEDGE JAMES
IPC: A21C3/06
Filed: 1917-05-05
Abstract: 116,316. Blackledge, J. May 5, 1917. Dough-working machines; rolling- machines. - Comprises the combination with a pair of machines of the type described in Specification 11724/14, and each consisting of a wrapper bar A arranged above a feed band B and co-operating with a pivoted band C, of a pair of preliminary shapers each consisting of a band F arranged within a trough G beneath a spring presser-board H which shapers deliver clots of dough K to the wrapper mechanism with the axes k<1> of the clots K in alinement with the bands B. The two shapers are connected to a hopper 0 fitted with a pivoted flap as described in Specification 111,132, [Class 28 (i), Bread-making &c.], whereby the clots fed from the conditioning-chamber by a belt N are delivered to the shapers alternately. The presser-boards H are depressed by springs h' acting upon cross-bars h<2>, the inclination of the boards being regulated by packing-pieces h<3>. The shapers may be arranged at any desired angle and the clots K passing therefrom are positioned upon the bands B by guides. After passing the wrapping-machines the pieces of dough are passed through shapers D comprising a band and spring presser-board.
Patent GB-597896-A (GB)
Title: Golf club
IPC: A63B53/00
Filed: 1945-03-14
Abstract: 597,896. Golf clubs. REACH, M. B. March 14, 1945, No. 6426. Convention date, Oct. 17, 1944. [Class 132 (ii)] A golf-club of substantially equal diameters at its ends is formed by two tubular members which are reduced in diameter by steps, the narrower end of each being fixed to a tube 26 which fits inside them.
Patent GB-394078-A (GB)
Title: Improvements in and relating to wireless receiving apparatus
IPC: H04B1/18
Filed: 1932-03-03
Abstract: 394,078. Wireless receiving-apparatus. KELLER, L. and KELLER, F., 12, Grosse Rittergasse, Frankfort-on-Main, Germany. March 3, 1932, No. 6430. [Classes 40 (iii) and 40 (v).] For eliminating interfering broadcast and like signals an aerial is connected to a wireless receiver R through two tuned circuits 2, 4, which may be inductively coupled with one another ; and a third tuned circuit 3, coupled to one or both of the former two, is inserted in the earth connection. The inductances are provided with tappings to assist in the tuning.
Patent GB-1115104-A (GB)
Title: Improvements in or relating to couplings for electrical networks
Inventor: FRIEDLANDER ERICH SIEGFRIED
IPC: H02H9/02
Filed: 1966-02-14
Abstract: 1,115,104. Transmission line arrangements. GENERAL ELECTRIC CO. Ltd. 11 Jan., 1967 [14 Feb., 1966], No. 6443/66. Heading H2H. In a series tuned L c  interconnector in an A.C. transmission system, the capacitance is divided into sections, part of which is shunted at a determined value of current. Contacts 2 operated by a current responsive coil 3 shunt a capacitor C 1  which detunes the series L c  circuit to limit the current to, say, 70% of the maximum permissible overload. Over-voltage on the other capacitor C 2  causes a spark-gap S 2  to break down and operate through a coil 5, other contacts 6 shunting both capacitors. A second spark-gap S 1  operates on over-voltages. The switch 2, 3 is arranged to have a current time characteristic similar to capacitor C 1 . A number of capacitors may be serially arranged to be shunted and unshunted sequentially. The capacitors may be arranged to have a slightly greater value than that to compensate for the reactance of the link to reduce the voltage across them and hence their kva. rating. Dividing the inductance R 1 , R 2 , provides improved voltage distribution.
Patent GB-162479-A (GB)
Title: Improvements in trouser hangers
IPC: A47G25/48
Filed: 1920-03-03
Abstract: 162,479. Derwent, F. R., and Derwent, A. L., (trading as Derwent Bros.). March 3, 1920. Suspenders for articles of dress.-A trouser, skirt, or like hanger is formed from a piece of wire A, the centre portion of which is straight with a loop a<1> in the middle, the ends A<2> of the wire being bent downwards and looped back to form slides B on which spring clips C adjust themselves to varying widths of garments. A hook D, which serves for suspending the hanger and allows it free rotary movement, is inserted in the loop a<1>, and its lower end is bent over as shown at d. Each clip C is formed from two pieces of wood c, hollowed out at c<1> to grip the garment, and controlled by a spring E, which also serves to attach the clip to the slide B.
Patent GB-230271-A (GB)
Title: Improvements in or relating to detachable wheels for motor vehicles and to the like removable parts
IPC: B60B3/16
Filed: 1924-03-13
Abstract: 230,271. Read, A., and Turner, W. E. March 13, 1924. Detaching from, and attaching to, permanent hubs.-Relates to devices for securing detachable flanges or the like, and consists of means for preventing the complete removal of the securing nuts from the flanges &c. A tubular extension is formed on the nut, which is split longitudinally, and provided with a shallow lip on the end remote from the nut. A detachable wheel a is clamped on a permanent hub b between a fixed hub flange c and a detachable flange d by studs e carried on the flange c and passing through bushed holes f in the nave. The nuts g, formed with split tubular extensions h and lips i, are engaged with the flange d by forcing the extension h through the flange stud holes j. Washers l are threaded on the nuts before engaging them with the flange.
Patent GB-125505-A (GB)
Title: Improvements in or relating to the Manufacture of the Reeds for Musical Instruments.
Inventor: CORDONNIER ROBERT
IPC: G10B3/08
Filed: 1918-04-16
Abstract: 125,505. Cordonnier, R. April 16, 1918. Musical instruments.-In making reeds for harmoniums, concertinas, mouth organs, &c. from brass, steel, &c., a curved surface such as A<1>, Fig. 2, is obtained by bending the material upon a former or mandrel B of the desired curvature and making a straight cut with a milling-cutter or other tool, as indicated by the dotted lines. Fig. 3 shows a milling-machine in which a strip of material is fed over a specially-shaped roller C upon which it is pressed by spring-urged rollers F, F' on either side of the straight cutter J. The roller C is axially adjustable by means of a screw L and vertically adjustable by means of wedges C<3>, C<4> to vary the cut. In a modification, the material is clamped upon a curved support M, Fig. 6, on a table N which moves under a cutter J<2> mounted on fixed bearings; or the cutter may be moved over a fixed table. The strip so formed is then cut transversely to form a number of reeds of uniform pitch.
Patent GB-415795-A (GB)
Title: Improved stuffed or padded articles
IPC: A47C27/12
Filed: 1933-03-03
Abstract: Stuffed or padded articles such as upholstery cushions &c., are made by confining chlorinated rubber in the form of small filaments, cells, (i.e. hollow beads, shapes or bubbles) or lamin  or small aggregations of such forms in contact with a flexible covering.  The chlorinated rubber preferably contains a plasticizer such as tricresyl phosphate, dibutyl phthalate, chlorinated diphenyls and chlorinated naphthalenes and may be used in conjunction with an inert resilient material such as natural or artificial rubber in comminuted form.
Patent GB-964924-A (GB)
Title: Method and apparatus for subterranean laying of cable or piping
IPC: E02B11/02
Filed: 1962-02-20
Abstract: 964,924. Trench-forming apparatus. R. HARMSTORF. Feb. 20, 1962 [March 4, 1961], No. 6588/62. Heading E1F. [Also in Divisions F2 and H2] An apparatus for the subterranean laying of cable or pipe has a mole plough structure for forming in soil a channel to receive cable or pipe emerging from the structure and to facilitate penetration of the soil by the structure part of the structure is caused to vibrate. A number of various arrangements of vibrators and vibratory parts of the structure are described. Advance of the structure may be further aided by high pressure fluid jets emerging from the structure and by means for sucking soil from the front to the rear of the structure.
Patent GB-176388-A (GB)
Title: Improvements in apparatus for the electrical ringing of bells
IPC: G10K1/34
Filed: 1922-03-06
Abstract: 176,388. MarliÞre, H. March 7, 1921, [Convention date]. Instruments w t t h bells, percussive.-In apparatus for ringing electrically a plurality of church and other bells, the circuits for driving various bells are closed in an order and at intervals determined by a distributor actuated by one of the bells. The mechanism shown in the Figs. for three bells may be used. On the wheel 1 of the one bell, say, E flat, are two abutments 3, 3<1> and at suitable points round it are single-acting switches 41, 41<1> controlling the circuits of the motor 28 for the F bell &c., a similar switch 42 for the G bell and a reversing-switch 4, as described above, for the E-flat bell itself. The reversing- switches 43, 44 for the F and G bells are controlled by those bells in the same manner as described above. On closing the switch 20 the motor 19 drives the E-flat bell, and if it swings in a clockwise direction, the switch 42 is closed, On the return swing the switch 42 is opened and switches 41, 4 are closed by the abutment 3, and the switch 42 is again closed by the abutment 8<1>. Thus the bells are rung in the order E flat, G, F, E flat, G, F, and so on. In this case also the switches 4, 41, 41<1>, 42 may be operated by blocks travelling on a screw-threaded shaft instead of by the wheel 1. If a cadence of more than three bells is to be controlled by one of them, the oscillatory movement of this bell is transformed into a continuous rotation of the wheel or other element operating the switches. The switch 20, which is to set going the sequence of ringing, may be closed and opened by a clock-work movement.
Patent GB-479641-A (GB)
Title: Improvements in or relating to "snips" or sheet-metal cutters
IPC: B23D29/02
Filed: 1937-03-05
Abstract: 479,641. Shearing. GULLEY, H. J. March 5, 1937, No, 6632. [Class 83 (iv)] An upper blade A is pivoted at C to a lower blade B and is formed with a handle A <1>. The blade B is formed with extensions E, F forming a base. The part E is pushed forward under the material to be cut such as sheet metal. Shoulders K are formed on the blades to prevent their ends from overlapping.