baber/WOPTO huggingface dataset:
Patent GB-1147886-A (GB)
Title: A centrifugal spreader for spreading fertilizers
IPC: A01C15/00
Filed: 1966-04-25
Abstract: 1,147,886. Centrifugal spreaders. AMAZONEN-WERKE H. DREYER. 25 April, 1966 [29 April, 1965], No. 17973/66 Heading A1D. A centrifugal spreader for spreading fertilizers comprises a container and a frame which supports spreading means beneath the container, the lower part of the container being in the form of two juxtaposed hoppers which are separated from one another either by two walls which meet along their top edges and diverge downwardly or by a single common wall, the two walls or the single wall being secured directly to the frame. The spreader of Fig. 1 includes a container 1 diivded by a wall 4 into two hoppers each of which has an outlet 13 and a slide plate 12 connected to a handle 9 (9<SP>1</SP>). A gear box 16 carrying a spreader disc 2 is mounted on the frame for movement in three directions by the members shown in Fig. 3. The spreader is adapted to be mounted on the three point linkage of a tractor. In the alternative embodiment of Fig. 7 the hoppers are separated by downwardly diverging walls 45 which include outlet openings controlled by plates (51) (Fig. 6, not shown) for permitting flow of material on to the spreader discs. The walls 45 extend forwardly of the hoppers and are connected to frame member 49. In further embodiments the walls may be secured to the frame (Fig. 8, not shown) such that the container can be adjusted with respect to the frame, or the container apart from the downwardly diverging walls is made of plastics and is additionally supported by a bearer member (79) (Fig. 10, not shown).
Patent GB-569120-A (GB)
Title: Improvements in or relating to the electrical heating and forging of billets
IPC: B21J9/12
Filed: 1943-11-01
Abstract: 569,120. Forging-machines. ARON, H. Nov. 1, 1943, No. 18018. [Class 83 (iv)] Dies.-Billets electrically heated for drop forging are given a preliminary compression in the heating machine before transfer to the drop-forging dies. The machine base comprises a plate 42 with side flanges 41 and welded on bosses 43, 44, 45. The support 50 for the lower anvil 57 is insulated from the bosses at 82 and from columns 45 by bushes 51. The upper anvil is slidable on the columns, under the control of a double-acting hydraulic cylinder 85 bolted at 78 to the tops of the columns, and carries rods 90 supporting a cross-head 91 coacting with axial stop nuts 94, 95 to regulate the initial separation of the anvils and the amount of compression permitted. The supports 50, 70 are hollow for water cooling and the supply pipes lead to jets 136 playing directly on the anvils. An adjustable dog 152 operates a limit switch 157 to cut off or reduce the heating current as upsetting proceeds. If the billet 133, Fig. 3, has ends that are not square, the initial movement squares them, after which further heating brings the billet to uniform temperature, further compression produces the shape shown in Fig. 6, suitable for transfer to the dies 171. A billet of this form cannot economically be heated electrically in the first instance. If the switch 157 merely reduces the current, the preliminary upset takes place without reduction of temperature, whilst overheating is prevented.
Patent GB-880530-A (GB)
Title: Detecting apparatus for icing conditions
Inventor: SPENCER WILLIAM GEORGE
IPC: B64D15/20
Filed: 1958-06-05
Abstract: 880,530. De-icing aircraft. NAPIER & SON Ltd., D. Sept. 7, 1959 [June 5, 1958], No. 18035/58. Class 4. [Also in Groups XX and XXXVIII] Icing conditions in the atmosphere are detected by a head 1, Fig. 1, mounted on an aircraft at a point where it will be subject to approximately the same icing conditions as parts of the aircraft on which ice may form. Heat is supplied to the head at a substantially constant rate, so that the temperature rises steadily with time, as on the left of Fig. 3, if no ice is present, whereas in icing conditions there is a period X during which no rise in temperature is observed, as on the right of Fig. 3, and this is used to operate indicating or de-icing equipment. As shown the head 1 comprises a thin platinum strip 2 connected by conductors 3, 4a in a bridge circuit, Fig. 2, which is normally balanced at -10‹C. The output from the bridge circuit is supplied through a differentiating circuit 9, 10 and rectifier 11 to a relay circuit 12 which only operates when two pulses are supplied thereto. A source 5 supplies current cyclically so that there is a heating period followed by an unheated period during which ice is allowed to form on the head 1, the source 5 also causing the relay circuit 12 to return to its initial position at the end of each heating period. If no ice is present only one pulse is supplied to circuit 12 during each heating period and this is insufficient to operate it but if there are two pulses relay circuit 12 is operated. This may control de-icing equipment of the type employing electrical heating elements which are heated cyclically and such heating periods and/or the intervals between such periods may be controlled in accordance with the thickness of ice formed on the strip 2 as represented by the length of the portion X of the temperature curve and/or the temperature at the beginning of each heating period. In a modification the sensing element on head 1 is indirectly heated.
Patent GB-334300-A (GB)
Title: Improvements in and relating to tennis and like racquets
IPC: A63B49/02
Filed: 1929-06-12
Abstract: 334,300. Trimmings, A. E., and Spalding & Bros. (British), Ltd., A. G. June 12, 1929. Rackets.-A tennis racket having an open throat is strengthened by strips 12, Fig. 1, of wood or other material that are applied across the throat, have their inner edges shaped to conform to the curvature of the frame and have their ends bent or curved to meet the frame at an angle. The strips are united to the shoulders 10 of the frame and are glued to an inner curved throat piece 11, Fig. 4. The grain of the strip is longitudinal and the inner ends may be either concave or convex.
Patent GB-385869-A (GB)
Title: Improvements in or relating to flexible connections
IPC: F16C11/06
Filed: 1932-06-27
Abstract: 385,869. Flexible-unjointed hinges. FIRESTONE TYRE & RUBBER CO., Ltd., Great West Road, Brentford, Middlesex.-(Assignees of Saurer, C. ; 584, Vanita Avenue, Akron, Ohio, U.S.A.) June 27, 1932, No. 18182. Convention date, Feb. 12. [Class 65 (ii).] A flexible connection between two members, such as parts of the steering gear of a motor vehicle, comprises a socket on one member containing a rubber bushing, prevented from movement in the socket by friction or by being vulcanized thereto, and a stud on the other member having one end completely embedded in the rubber and vulcanized thereto ; the embedded end of the stud may be in the form of an enlarged head. One rod 11 has at its end a tapered bore in which fits a corresponding portion of a stud 15, the stud being clamped to the rod by a nut 17 engaging a screwed portion of the stud. The stud has a roughened portion 15b adjacent to its head. The other rod (not shown) carries a socket 12, having one end closed by a cup 14 fixed in position by swaging over the edges of the socket 12. The socket and cup surround the free part of the stud, and enclose a mass of resilient material 16 in which the end of the stud is embedded and which is vulcanized to the stud and is prevented from rotation in the socket either by friction or vulcanization. The lower edges of the socket are turned inward after assembly to compress the rubber, forcing it to bulge over the ends of the socket to form a guard against the entrance of dirt ; the compression of the rubber also produces frictional engagement with the socket.
Patent GB-1303076-A (GB)
IPC: C03B18/00
Filed: 1970-04-16
Abstract: 1303076 Casting glass SOC DES VERRERIES INDUSTRIELLES REUNIES DU LOING 16 April 1970 [16 April 1969] 18229/70 Heading C1M Preliminary shapes in optical glass are cast by pouring molten glass on to the surface of a bath of metallic molten material which is immiscible therewith, maintaining the bath in a desired temperature range during pouring and spreading of the glass over an enclosed area of the surface of the bath by heating elements, and thereafter ceasing pouring and controllably cooling the bath by cooling elements so as to set the spread glass. The distance between the upper surface of the spreading glass and the source is maintained substantially constant during pouring. The process is carried out using a tank 11 containing a bath F, preferably of lead or lead-tin alloy, and having a heating resistance 16, cooling tube 17 and a thermocouple 15. A valve 14a is provided for the controlled emptying of the bath so as to maintain the above mentioned constant height. The enclosed area on the bath surface is provided by a plurality of sectors 12a, 12b, 12c, each sector being castellated in their immersed portion to permit the flow of liquid to the enclosed area. The pouring is carried out at a temperature above the devitrification temperature of the glass and the bath maintained at a temperature between 20 and 30 C. above the softening point of the glass. Since the casting is not carried out in a neutral atmosphere, prior to casting the bath surface is skimmed to remove surface oxidation. The sectors 12a, 12b, 12c are released from rods 13<SP>1</SP>a-13<SP>11</SP>c which hold them below the metal surface and the glass disc may be removed as by immersed hooks.
Patent GB-1504625-A (GB)
Title: Method and apparatus for cleaning fabric filters of bag type or the like
IPC: B01D46/04
Filed: 1975-05-01
Abstract: 1504625 Cleaning gas filter bags SVENSKA FLAKTFABRIKEN AB 1 May 1975 [2 May 1974] 18245/75 Heading BIT Gas filter bags (not shown) are cleaned by one or more pulses of reverse flow air delivered from a manifold 4, through nozzles 5 or apertures 7 directed towards the bag mouths, the inlet end of the manifold 9 being extended into a compressed air reservoir 1 where its free end presents an annular seat 12 which is normally engaged by a flexible diaphragm 11. The diaphragm is withdrawn for a short period by an electrically-actuated pilot valve 14, thereby delivering a pressure pulse into the bags whose duration is below 0.1 seconds and whose maximum pressure is reached in less than 0.030 seconds after the pulse begins, the rate of pressure increase being larger than in prior art constructions, thereby enhancing the cleaning effect with minimal use of air (Fig. 7, not shown). Diaphragm 11 may have apertures (Fig. 6 not shown) to reduce its return time. The reservoir volume should be 5 to 20 times that of manifold 4. In Fig. 9 (not shown) a plurality of manifolds are connected to one reservoir which is internally partitioned to achieve the latter requirement. Bags may be cleaned by a train of pulses (Fig. 8 not shown) created by supplying an electric square wave to valve 14.
Patent GB-829374-A (GB)
Title: Improvements in or relating to heat transfer rolls
IPC: B23K35/30
Filed: 1957-06-07
Abstract: 829,374. Making rollers; welding by fusion. ARMSTRONG CORK CO. June 7, 1957 [June 11, 1956], No. 18260/57. Classes 83 (2) and 83 (4). [Also in Group XIII] A calendering roll 2, Figs. 1, 2, 3, for working plastic materials, such as linoleum or vinyl compositions, comprises a steel mandrel 2 having a flow duct for heating or cooling fluid formed by intercommunicating grooves 10 closed by covers 11, 12 secured by weld metal 14 to the mandrel. After machining or grinding, the surface of the roll is covered with a layer 15 of mild steel weld metal which, after machining or grinding, is covered with a layer 16 of hard weld alloy steel. During the application of the layers 15, 16, the roll is heated to a temperature of about 900‹ F., and after the application of the layer 16 the roll is tempered by cooling in still air to 100‹ F. The roll is then reheated to about 950‹ F. and, if necessary, re-tempered.
Patent GB-401794-A (GB)
Title: Improved device for the delivery of goods to house doors and the like
IPC: A47G29/22
Filed: 1932-06-29
Abstract: 401,794. Receiving-devices for house doors &c. HAIGH, J. S., 496, Wilbraham Road, Chorlton - cum - Hardy, Manchester, MORLEY, H. R., 107, Heaton Road, Heaton Moor, Stockport, and HAIGH, W. C., 496, Wilbraham Road, Chorlton-cum-Hardy, Man. chester. June 29, 1932, No. 18305. [Class 18.] A receiving-device for use in delivering bottles &c. to houses &c. comprises a horizontal box-like part open at both ends with a horizontal floor or shelf A, a vertical door or lid B hinged to one end a of the box, a push block or projection piece C carried by the door and a vertical movable shutter D hinged within the box and linked to the door B so as to shut off the interior of the box from access from the end a when the door B is opened ; the goods are removed from the opposite end b of the box which may be provided with a door and lock E. The door B may move on a vertical hinge as shown or on a horizontal hinge at the top or bottom of the box ; pieces G, G<1> guide the goods into the box and prevent bottles tipping over as they move along the floor A. When the end b is open it is arranged in proximity to the door &c. so that when the latter is closed it, or an attachment thereto, closes the open end of the box.
Patent GB-1125264-A (GB)
Title: Improvements in or relating to rotary printing machines
IPC: B41F27/10
Filed: 1966-04-26
Abstract: 1,125,264. Rotary printing machines. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. 26 April. 1966 [22 May, 1965], No. 18317/66. Heading B6C. In a rotary machine in which the printing plates 2 are clamped by means of pivotable hooks 3, 4, carried by the printing cylinder 1 and arranged to engage in recesses 5, 5<SP>1</SP> located in the undersurface of the plate along the two straight edges thereof, the hooks of one row, which is movable into clamping position by a rotatable cam-shaft 6, each consist of two parts which bear resiliently against one another. The first part 3<SP>1</SP> has a hook 3 for engagement in the associated plate recess whilst the second part 3<SP>11</SP> bears against the cam-shaft. The end 8 of the first part is mounted for pivotal movement in a co-oparating seating in the second part.
Patent GB-834054-A (GB)
Title: Duplex pens or pencils
Inventor: MYERS MALCOLM BAYLEY
IPC: B43K24/14
Filed: 1957-06-11
Abstract: 834,054. Multiple writing instruments. MYERS & SON Ltd., M. May 6, 1958 [June 11, 1957], No. 18357/57. Class 146(3) A pen or pencil comprises a pair of writing units c, e.g. ball-point writing units, slidably mounted for projection from or concealment in a holder, a rotatable member e having a right-hand helical groove formed along one part of its length and a left-hand helical groove formed along another part of its length, and a pair of slides g, each slide engaging one of the helical grooves with one end and one of the writing units with the other end so that rotation of the member e will move the slides g in opposite axial directions and thereby effect corresponding movement of the writing units. The slides g are axially slideable in longitudinal, internal grooves f formed in the rear part b of the holder. The member e is not longitudinally displaceable and has an extension projecting through the rear end of the holder portion b, to which extension a rotatable finger piece h is attached.. Rotation of the finger piece h and member e in one direction causes one writing unit c to be projected from the holder and the other retracted into it, while rotation thereof in the opposite direction causes the motions of the units to be reversed.
Patent GB-438217-A (GB)
Title: Improvements in and relating to systems of and apparatus for converting electric currents
IPC: H02M1/04
Filed: 1934-06-22
Abstract: 438,217. Converting; frequency changing; motors. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London. June 22, 1934, No. 18526. Convention date, June 22, 1933. [Classes 35 and 38 (ii)] Machines with vapour or like rectifiers in place of commutators.-The valves in a converting arrangement for supplying a load such as a motor with a variable frequency current from a supply of fixed frequency, are controlled by an arrangement comprising chokes 32-35 and 36-39 in parallel and series respectively with the primary windings of the grid transformers 27-30, the values of these chokes being varied by an inductor 40 driven by the motor so as to render the grid transformers periodically ineffective. The corresponding chokes in the groups are arranged 90‹ phase displaced. To render a group of valves conducting the inductor disc 40 is moved so that the impedance of the choke in parallel with the grid transformer is increased and the impedance of the choke in series is reduced thus rendering the grid transformer effective. In a modification the chokes connected in series are omitted. Specification 418,297 is referred to.
Patent GB-434986-A (GB)
Title: Improvements in picture frames
IPC: A47G1/06
Filed: 1934-06-25
Abstract: 434,986. Picture frames. ROBERTS, C. L., 18, Belsize Park, Hampstead, London. June 25,1934, No. 18651. [Class 11] Relates to frames of the kind shown in Fig. 1, in which the glass 4 is carried in a rabbeted frame 1, removably mounted in front of a second rabbeted frame 2, which serves to position the canvas 6 and its stretcher 7, both of the frames 1, 2 being set into a main frame 3. In order that the glass may be set nearer to the canvas and shadow effects thereby avoided, the canvas-carrying frame 2 is arranged to project into or overlap the frame 1, as shown in Fig. 4. The frame 2 is reduced in thickness, and has secured to it a flanged member 8 forming the rabbet. The glass-carrying frame may retain substantially its normal form, or may have the rear part cut away and replaced by an angle-piece 1<a>, the flange of which projects under the member 8 of the frame 2. The glass is held in position by a framing-strip 1<b>, which is secured to the angle-piece by screws, packing 1<c> being disposed around the edges of the glass. The frame 1 is held in position at the bottom by dowel-pins 9, which pass through holes in the angle-piece 1<a>. The sides of the frame 1 are secured to the frame 2 by thumb-screws. The flanged member 8 of the frame 2 may be dispensed with, and the frame undercut to accommodate the flange of the frame 1.
Patent GB-112297-A (GB)
Title: Process for Manufacturing Multi-focal Eyeglass Lenses.
Inventor: GOWLLAND HENRY ORFORD
IPC: B24B13/00
Filed: 1916-12-30
Abstract: 112,297. Gowlland, H. O. Dec. 30, 1916. Lenses, grinding and polishing.-Multifocal lenses are produced by grinding one face to a spherical curvature and the other to a multifocal curvature, and smoothing and polishing the face of multifocal curvature by elastic means incapable of changing the curvature. In the grinding- machine shown, the lenses are mounted in holders on a pair of spindles 10 driven in opposite) directions by bands from the shaft of a grinding-wheel 8 of parabolic or spiral &c. section. The spindles may be moved endways to lift the lenses from the wheel, and they may be retained in the elevated position by collars 15 engaging with cams 16. The smoothing is effected by a rotary tool having a resilient surface covered with chain mail, as described in Specification 111,716, and the polishing by a similar tool covered with felt. The resilient surface may be provided by cork or sponge rubber; or it may be a rubber disk under fluid pressure.
Patent GB-1455596-A (GB)
Title: Laminates
IPC: B29C48/08
Filed: 1974-04-29
Abstract: 1455596 Laminated extruded film TOYO SEIKAN KAISHA Ltd 29 April 1974 [30 April 1973] 18736/74 Headings B5N and B5B A packaging laminate of low permeability to moisture and gases comprises layers (i) and (ii) which have been fused together immediately following simultaneous extrusion, layer (i) being an acrylonitrile/(acrylic ester and/or butadiene) copolymer containing more than 50 mol per cent acrylonitrile, and layer (ii) being polypropylene, polyethylene (e.g low density) or an ethylene/vinyl acetate copolymer comprising not more than 8 mol per cent va. At least one layer may contain 2-30 parts ethylene/acrylic acid ionomer and/or ethylene/ vinyl acetate copolymer per 100 parts of the main resin component. Layer (i) may be heatsealed between two layers (ii). The laminate may be shaped by blow-moulding.
Patent GB-515811-A (GB)
Title: Improvements in cleaning heat exchanger tubes
IPC: F28G9/00
Filed: 1938-06-24
Abstract: 515,811. Cleaning heat-exchanger tubes. SERCK RADIATORS, Ltd., and ROBSON, F. June 24, 1938, No. 18762. [Class 99 (ii)] In a heat-exchanger of the kind in which one fluid passes through tubes b and another fluid is passed through the casing a around the tubes the outsides of the tubes are cleaned by closing the inlet c and outlet d, filling the casing at q with a cleansing liquid, and setting up a circulation of the cleanser by injecting steam through a nozzle i. The cover o and plug l are removed from the nozzle which is connected to a steam supply pipe. The nozzle is raised from its seat in the end of a pipe e so that cleansing liquid may be drawn in by the steam through ports m. Circulation is facilitated by a conical baffle t opposite the flared outlet of the pipe e. Scum is withdrawn at p. In a modificaiion the steam nozzle and a circulation control valve are arranged in a passage at ' the side of the casing.
Patent GB-971505-A (GB)
Title: Improvements in or relating to pneumatic control valves
Inventor: CURRIE WILLIAM HOUSTON
IPC: F16K31/524
Filed: 1960-05-27
Abstract: 971,505. Valves. CONSULTAIR Ltd. May 26, 1961 [May 27, 1960], No. 18811/60. Heading F2V. A pneumatic control valve has an annular valve seat 3 in a bore between an inlet port 4 in a bore part 2b and a cylinder port 5 in a bore part 2a, and a valve element 6 spring-loaded at 12 alternatively engaging the seat 3 or the end of a tubular member 10 opening to atmosphere and yieldable against spring 15. Valve 6 is operable by manual push-button, a lever or cam, or by a piston, the top of the valve casing 1 being shaped to receive a correspondingly shaped channelled block 19 carrying the required operating element, the block being secured by bolts at 26 to the valve casing.
Patent GB-952067-A (GB)
Title: Package
Inventor: VERGOBBI JOHN GEORGE
IPC: B65D5/60
Filed: 1960-05-27
Abstract: 952,067. Packaging; bags, cartons. PNEUMATIC SCALE CORPORATION Ltd. May 27, 1960, No. 18851/60. Headings B8C, B8K and B8P. A blank for a bag, which may form the liner of a carton, is coated on one face with thermoplastic adhesive and has thicker auxiliary strips of thermoplastic adhesive 36, 38, 40, 42 near the four corners, at the parts of the fin seam 16 which will lie in the end seams 30, Fig. 5, half of one auxiliary strip confronting half of the opposite strip in the seam 16 when the blank is wrapped around a mandrel 12, Fig. 2. When the seam 16 is heat sealed the confronting halves of the thicker strips melt to fill the groove 44, Fig. 4, the remaining halves remaining unmelted. One end is then folded in to form the fin seam 30 and when this seam is heat sealed the remaining halves of the strips melt to completely fill the space 45, Fig. 6, in the end seam. The bag is then removed from the mandrel, filled, sealed at the other end and placed in a carton.