baber/WOPTO huggingface dataset:
Patent GB-1500874-A (GB)
Title: Tool for removal or placement of valve stem keepers
IPC: B25B27/26
Filed: 1976-06-07
Abstract: 1500874 Valve stem keeper removing tool; spring compressor W LAWSON 7 June 1976 23387/76 Headings B4C and B4W A tool for the removal or insertion of valve stem keepers or cotters 28 for a valve of an internal combustion engine comprises an elongated body portion 12 having disposed in one end surface 20 a recess comprising first, outer chamber 18 having an inwardly tapering conical wall and a second, inner chamber 16 of cross-sectional area less than that of the rear wall 32 of the outer chamber opening into it via its rear wall 32. Preferably body 12 is cylindrical and formed of hard steel. In order to remove keepers 28 surface 20 of the tool is placed in contact with valve spring retainer 22,. Fig. 3, and the other end of the tool is struck with a hammer. The impact compresses spring 24 and moves retainer 22 away from keepers 28. If the keepers do not fall away from valve stem 26 they are pushed away by annular rear wall 32, the head of the valve stem being received in inner chamber 16. To insert new keepers a natural or synthetic rubber resilient sleeve 14 is inserted into inner chamber 16. Preferably there are screw threads on the outer surface of sleeve 14 and.the inner cylindrical surface of chamber 16 and the sleeve projects beyond end surface 20. With the parts assembled as shown in Fig. 1 the tool 12 is struck to compress spring 24 and allow the keepers to grip the groove in the valve stem. The compression of sleeve 14 causes it to bow outwards, Fig. 2, not shown, and press the keepers inwardly against valve stem 26. Tool 12 may have a connector recess 36 to receive an extension rod.
Patent GB-638096-A (GB)
Title: Improvements in or relating to boxes and like containers
IPC: B65D5/50
Filed: 1947-08-25
Abstract: 638,096. Boxes. FILMER, Ltd., R. H., and KIRBY, M. J. Aug. 25, 1947, No. 23425. [Class 18] A cardboard cell-forming element for a box comprises a strip having a slit 17, the strip being scored along lines 14 extending towards one another from the ends of the slit 17 and also along at least one line 20 across the slit, whereby part of the strip may be folded to form a cell. The score lines 14 extending from the ends of the slit may meet to form a rectangular cell, or may be joined by lines 18 to form a hexagonal cell. Margins 25 may be defined by score lines along the edges of the strip. The margins 25 may be secured to walls of a blank 40 forming a box, Fig. 11, the folding of the blank forming the cells in the inset, or the margins 25 may join a pair of insets together. An inset scored to produce hexagonal cells, may be folded at right angles on the score lines 20 to produce rectangular cells, as seen in plan, Fig. 4. Two such insets 1, 11 may be secured together by their upper faces to form rectangular cells in the transverse direction, Fig. 13. Two insets, scored and slitted for more than one cell may be secured face to face by their margins 25, with the slits of one lying midway between those of the other, the cell-forming portions of each being depressed to engage, by means of notches formed therein, those of the other inset, Fig. 16. The slit 17 may be curved, have offset portions, or may have further slits at its ends. Panels of a carton may be cut and scored as shown in Fig. 3 to provide a carton with transverse partitions.
Patent GB-721821-A (GB)
Title: Improvements in the manufacture of aluminium alloys
Inventor: RANSLEY CHARLES ERIC
IPC: C22C32/00
Filed: 1948-09-06
Abstract: An aluminium alloy is produced by pressing and then sintering a powdered mixture of at least 85 per cent by volume of aluminium or an aluminium alloy and at least 3 per cent by volume of a carbide or nitride of titanium or zirconium, the particles of the latter having been pre-treated to ensure wetting thereof by the aluminium or aluminium alloy.  Pressing may be effected with or without heat or hot pressing may follow cold pressing; sintering may be followed by forging.  The carbide or nitride may be pre-coated with nickel or cobalt by milling, or with nickel by treatment with aqueous nickel chloride and heating in hydrogen at 300-400 DEG C. to reduce the salt, the temperature being then raised to 1000 DEG C. Alternatively, the carbides may be subjected to surface decarbonization.  In examples, aluminium alloys comprising (a) Ni 5 per cent, TiC 10 per cent; and (b) Zn 3.8 per cent, Mg 2.1 per cent, Cu 1.3 per cent, Co 0.5 per cent and TiC 15.0 per cent, are formed; the latter may be solution treated for 1/2 hour at 465 DEG C. followed by ageing for 16 hours at 135 DEG C.; in the production of this alloy, alloys comprising (i) Zn 45 per cent, Mg 25 per cent, Al 30 per cent; and (ii) Cu 50 per cent, Al 50 per cent, are used.  According to the first Provisional Specification, instead of carbides and nitrides of Ti and Zn, metallic Ni, Mn, Co and W, carbides and nitrides of Ta and W, and oxides may be used. Alloys containing (a) Ni 20 per cent, and (b) Ni 20 per cent, Mg 6 per cent are referred to.
Patent GB-481017-A (GB)
Title: An improvements in or relating to machines for cropping or shearing fabrics
IPC: D06C13/00
Filed: 1936-08-27
Abstract: 481,017. Finishing fabrics. SELLERS, E. R. Aug. 27, 1936, No. 23498. [Class 42 (i)] Shearing.-In a shearing-machine the pivoted cutter carrier b is lifted to permit of the passage of a seam when the same separates the feeler rollers g, h, one of which operates a switch j, k in the circuit of a solenoid m, the core n of which is connected by an arm o to the cutter carrier b. After a time interval the carrier b falls under the control of a dashpot t, or additional feelers p, p may be used for opening the solenoid switch.
Patent GB-931401-A (GB)
Title: Method of producing a pile fabric similar to natural fur and pile fabric produced by the process
IPC: A41H41/00
Filed: 1959-07-08
Abstract: 931,401. Imitation fur. GREFRATH VELOUR G.m.b.H. July 8, 1959 [July 11, 1958], No. 23541/59. Drawings to Specification. Classes 42 (2) and 74 (2). In a fabric having a pile of thick shrinkresistant fibres and thin shrinkable fibres which has been differentially shrunk to simulate fur, the shrinkable fibres are either crimped beforehand or become crimped during shrinkage. The shrinkable fibres may be vinyl chloride polymer or copolyner, vinylidene chloride copolymer, or polythene; nylon, polyester or polyacrylonitrile, spun or treated to have high shrinkage, may also be used, for example polyacrylonitrile treated in a turbo-stapler. The fibres may be crimped by grooved rollers or, in the case of polyvinyl fibres, by high twist. Or the fibres may be given a latent crimp by buckling in a heated cylinder or by vibrating the spinneret. The pile fabric may be woven face-to-face, or woven singly with warp or weft pile, or may be knitted; it may be made by napping a flat knitted fabric. In an example, a face-to-face fabric has a base of cotton warp and weft and pile of a yarn of 3 denier polyvinyl chloride filaments crimped by grooved rollers plied with a yarn of 15 denier nylon 66 filaments; differential shrinkage of the pilers effected by immersion in boiling water.
Patent GB-825410-A (GB)
Title: Improvements in pulsation damping or surge absorbing apparatus
IPC: F16L55/054
Filed: 1957-07-25
Abstract: 825,410. Pressure-relieving devices for fluids. WESTINGHOUSE AIR BRAKE CO. July 25, 1957 [July 30, 1956], No. 23573/57. Class 135. A pressure-relieving device for a pipe 10 comprises an elastic sleeve 54 surrounding a resilient internal supporting tube 53, a space being provided between the sleeve and the internal surface of the pipe for the free flow of fluid. The sleeve 54 is made of rubber or like flexible material and the tube 53 of sheet spring steel. The latter is formed with a break running the entire length of its wall, and occupied by a resilient strip 59 which is compressed when the members 53, 54 are subjected to increased pressure. Preferably sleeve 54 is placed on tube 53 in a radially stretched condition so that it is not forced, by pressure, to assume a diameter smaller than that of its natural state. The members 53, 54 are supported by spiders 19, 20 carrying screwed plugs 25, 26 providing tapered seals for the ends of sleeve 54 to render the latter fluid-tight. One of the plugs may be provided with a non-return valve by means of which the interior of tube 53 may be charged with compressed air, Fig. 2 (not shown).
Patent GB-312001-A (GB)
Title: Improvements in or relating to grinding and polishing wheels
IPC: B24D9/00
Filed: 1928-08-16
Abstract: 312,001. Nielsen, H. Aug. 16, 1928. No Patent granted (Sealing fee not paid). Wheels.-A grinding or polishing wheel consists of a hub a upon which a strip of abrasive cloth d is wound, the inner end being placed in an incision c. The turns of cloth are, secured together by glue upon the side faces of the wheel, or by glueing thereto a sheet of paper, cloth, &c. The hub may have bevelled corners to keep the edges of the strip below the operative surface ; a fresh surface is presented by unwinding a turn of the strip and tearing it off.
Patent GB-1395769-A (GB)
Title: Pi-form metal-free phthalocyanine
IPC: G03G17/04
Filed: 1972-05-19
Abstract: 1395769 #-Form metal-free phthalocyanine XEROX CORP 19 May 1972 [21 May 1971] 23692/72 Heading C4P [Also in Division G2] The invention comprises metal free phthalocyanines having an X-ray diffraction pattern exhibiting strong lines at Bragg angles of 2# equal to substantially 5, 6À6, 8À7 and 10 degrees using CuK 2  radiation of # = 1À5418 A.U. and having strong infra-red absorption bands at 717À5 and 749À5 cm<SP>-1</SP>. They are prepared by heating a mixture comprising a phthalonitrile and ammonia or 1,3-diimino-isoindoline and solvent to reflux temperature or to 120- 280‹ C., seeding the mixture with a catalytic amount of #-form metal phthalocyanine or #-form metal-free phthalocyanine. The solvents which may be preheated to 120‹ C. include solvents containing a primary hydroxyl group and especially alkylalkanolamines. The heating is maintained for 10-70 minutes. The compounds are used in electrophotography, inks, paints, varnishes and synthetic resins.
Patent GB-683089-A (GB)
Title: Mobile folds for animals
IPC: A01K3/00
Filed: 1950-09-28
Abstract: 683,089. Pens for animals. STANLEY, H. W., and MONCK, V. June 22,1951 [Sept. 28, 1950], No. 23807/50. Class 5(ii) Mobile pens for animals are mounted on wheels 11 and constructed with two opposite sides 12 of lattice work, or with the corners hinged. The structure may thus be collapsed for passage through a gateway or the like. One side of the pen may support a foldable shelter 14.
Patent GB-1090677-A (GB)
Title: A dragline conveyor material handling truck
IPC: B61B10/04
Filed: 1965-06-04
Abstract: 1,090,677. Material handling truck. SI HANDLING SYSTEMS Inc. June 4, 1965 [June 5, 1964], No. 23955/63. Heading B7L. A material handling dragline truck comprises a tow pin supported at one end of a body and movable between operative and inoperative positions relative to an associated dragline, and means structurally interrelating the pin with one or two selector rods supported at the same end of the body for causing the rod or rods to move from an operative to an inoperative position relative to the route setting function thereof in response to similar movement of the pin. In an embodiment, Figs. 1 and 2, the tow pin 36 is supported slidably in sleeves 32, 34, and is structurally interrelated with two selector rods 62, 64 slidably mounted in aligned holes in C-members 52, 50, by a pair of chains 66, 70 connected removably to rings on the rods 62, 64 and to two of a series of holes in a bar 68 connected to the tow pin 36, the pin 36 being urged upwards by a spring 42 but normally retained as shown by a hook arm 46 pivoted on a pin 47 so that the pin 36 is engageable by a dog 90 on a dragline 92. Members 50, 52 may be connected to arm 46 by a toggle mechanism as in U.S.A. Patent 3,094,944. The truck 10 rolls along the floor 86 which is provided with a main slot 88 intersected by spaced shunt slots (not shown). An abutment 94 on the floor is contactible by a selector rod to raise the pin 36 by rotating the C-members 52, 50 which rotate the hook arm 46 to release an abutment 44 on the pin 36, so that the truck may be directed manually into a shunt slot. Alternatively, the tow pin 36 may be raised manually by means of a handle 38 which engages the camming surface 28 of a plate 26 supported on the truck. A trip bumper 80 is connected by a link 82 to the lower end of the hook arm 46 so that if the bumper contacts an object, the pin 36 is raised clear of the dog 90 against the action of a tension spring extending between the arm 46 and a collision bumper 84. The selector rods 62, 64 may be moved to different positions in the members 52, 50. In another embodiment, Figs. 3, 4 (not shown), the bar 68 is replaced by a bar (96) secured to the pin (36<SP>1</SP>) next to the members (501), (52<SP>1</SP>), and the rods (62<SP>1</SP>), (64<SP>1</SP>) have flanges (98) which overlie the bar (96) so that the rods are raised when the pin (36<SP>1</SP>) is raised. In a further embodiment, Figs. 5, 6 and 7 (not shown), a single selector rod (6411) extends through a collar (116) slidable along the bar (114) secured to the pin (3611) and a ring (118) on the rod (6411) rests on the collar (116). The members (50<SP>11</SP>), (52<SP>11</SP>) are non-rotatable and the abutment (94<SP>11</SP>) may be moved by the rod (64<SP>11</SP>) instead of causing vertical movement of the pin (3611), so as to switch the truck from a main slot to a shunt slot or alternatively by means of a floor mounted proximity switch, a movable mounted abutment, or a switching element on the truck. The abutment 94<SP>11</SP> may be as described in U.S.A. Specification 3,103,183.
Patent GB-302212-A (GB)
Title: Process for the manufacture of n-ªÏ-aminoalkylaminonaphthalene carboxylic acids
Filed: 1927-09-12
Abstract: 302,212. I. G. Farbenindustrie Akt.- Ges., and Hentrich, W. Sept, 12, 1927. Addition to 230,457. # - Aminoalkylaminonaphtalene carboxylic acids; azo dyes.-#-Aminoalkylaminonaphthalene carboxylic acids are obtained by reacting with an alkylenediamine and a soluble sulphite on a hydroxy- or amino-naphthalene carboxylic acid,. other than one containing the hydroxy or amino group in ortho-position to the carboxylic group. The products are dyestuff intermediates. In examples, (1) #-aminoethyl-2-aminonaphthalene- 6-carboxylic acid is obtained by heating 2 : 6- oxynaphthoic acid with ethylenediamine hydrate and sodium bisulphite solution; the product couples in acid medium with diazotized 4- nitraniline-2-sulphonic acid with the formation of a deep blue violet colouration : 2: 6-aminonaphthoic acid may be used instead of 2 : 6-oxynaphthoic acid, and other hydroxy- or aminonaphthoic acids react in the same manner, provided the hydroxy or amino group is not in theortho-position to the carboxylic group, and (2) # - aminobutyl-2-aminonaphthalene-6-carboxylicacid is similarly obtained from 2 : 6-oxynaphthoicacid, 1 : 4-butylene diamine and sodium bisulphite ; it yields a reddish-blue dyestuff when coupled in acid medium with 4-nitraniline-2-sul-. phonic acid. Specification 230,457 is referred to.
Patent GB-1528172-A (GB)
Title: Photo-sensing apparatus
IPC: G06K13/067
Filed: 1975-06-03
Abstract: 1528172 Detecting edges INTERNATIONAL COMPUTERS Ltd 26 April 1976 [3 June 1975] 23999/75 Heading G1A [Also in Divison G4]  In an improvement of an apparatus for detecting the passage of an edge of a hole in a punched card passing between a LED 1 and a photo-transistor 2, the photo-transistors output is initially compared by an operational amplifier 8 (before the card is inserted) with a reference voltage. The reference voltage is derived from a Zener diode 10. The output of the operational amplifier 8 is used to control the voltage across the LED 1 by way of a resistance chain 12 and 13 as shown. A capacitor 11 is in a feedback loop of the operational amplifier 8 and has the effect of maintaining the voltage level across the LED when a card is obstructing the light path. Thus the LED's output is maintained substantially constant. The photo-transistor 2's output is also compared by a difference amplifier 15 with a further reference voltage derived from a resistance chain 16 associated with the Zener diode 10. When the signal level drops to below a threshold voltage determined by the further reference voltage, the difference amplifier output at 17 changes to indicate that an edge is being detected.
Patent GB-1062425-A (GB)
IPC: B65D85/671
Filed: 1964-06-10
Abstract: 1,062,425. Packages of rubber tyre treads. METZELER A.G. June 10, 1964 [Aug. 9, 1963], No. 24038/64. Headings B8C and B8P. Unvulcanized rubber tyre treads are wound on to a hollow core 4 (Fig. 1) and placed on a semi-cylindrical support 2 in a box. The support which may be cardboard, cloth or hard artificial foam lined with elastic artificial foam is either M-shaped as shown in Fig. 1 or U- shaped (Fig. 3, not shown) where it is secured to the side walls of the box. Alternatively the strip may be completely enclosed by two such supports. The hollow space 6 may be filled with polyester, or polystyrene, polyether or diisocyanate foam. A layer of artificial material may be applied to one surface of the windings of the rubber strip to prevent them adhering together.
Patent GB-223899-A (GB)
Title: Improvements in carburetters
IPC: F02M1/00
Filed: 1924-10-10
Abstract: 223,899. Lioud, F. Oct. 24, 1923, [Convention date]. Spray carburettors.-A carbarettor is supplied with two liquids, one, a light fuel, being fed from a float chamber a through a calibrated nozzle c to the space between a central air tube l and a tube f, and the other, a heavy fuel or water, being supplied from a second float chamber and calibrated nozzle to a chamber i leading to the space between the tube f and an outer tube k; the tubes l, f, k open into a chamber p provided with regulatable air inlets q, and with rich mixture outlets r, which direct the mixture against a choke tube s. The air supply to the tube l is controlled by a valve o. Light fuel from the nozzle c also passes to a well d, the fuel which accumulates therein both supplying a slow-running passage y through a calibrated nozzle z above which is an air inlet x, and passing to the main nozzle during acceleration.
Patent GB-293234-A (GB)
Title: Improvements in the winding drums or the like of winches
IPC: B66D1/30
Filed: 1927-09-13
Abstract: 293,234. Mensing, G. Sept. 13, 1927. Reels.-In winding-apparatus of the kind in which a rope is wound in superposed coils in a deep groove d formed in a sheave, the sheave is composed of two sides a connected by bolts b and spaced apart by central thickened portions a<1>, or by a ring or rings. The edges a<2> of the groove d are flared outwardly. Stiffening ribs a<3> are provided on the outer face of each side a.
Patent GB-1129143-A (GB)
Title: Dental posts
Inventor: TAYLOR RONALD LESLIE
IPC: A61C13/30
Filed: 1965-06-08
Abstract: 1,129,143. Dental posts. SHAWTREN Ltd. 26 May, 1966 [8 June, 1965], No. 24091/65. Heading A5R. A dental post used to secure an artificial tooth crown to the stump of a natural tooth comprises a head part 10 from which project a shank 13 and a part 16, the face 11 of the head 10 being frusto-conical and the shank 13 having a cutting edge 14 so that the post may be used to drill the hole in the stump into which it is to be cemented. As shown, an adaptor 18 is provided for fitting to the part 16 and for connecting the post to a dental engine, or in an alternative embodiment (Figure 6, not shown), the part 16 and adaptor 18 are integral (26). In use, the artificial tooth crown is cemented over the head part 10 after the part 16 has been severed from the head part. The face 11 may be smooth or may be provided with a serrated cutting surface.
Patent GB-1104807-A (GB)
Title: Improvements in and relating to impact mills
IPC: B02C13/09
Filed: 1965-06-09
Abstract: 1,104,807. Impact mills. HAZEMAG HARTZERKLEINERUNGS-UND. ZEMENT MASCHINENBAU G.m.b.H. 9 June, 1965 [23 July, 1964], No. 24353/65. Heading B2A. An impact mill comprises rotors 2, 3 and impact walls 6, 6a the lower ends of which lie approximately in the vertical centre planes of the rotors 2, 3 respectively, the rotor 2 having rigid beaters 4 and the rotor 3 having freely swingable hammers 9 which may be of the stop type. The rotor 3 rotates at a peripheral speed equal to or greater than that of the rotor 2. The rotor 3 co-operates with impact screens 11, 12, the screen 12 being dismountable.
Patent GB-868712-A (GB)
Title: Improvements in or relating to rectilinear bearings
Inventor: HUTTON-WILLIAMS DEREK ALFRED
IPC: F16C29/04
Filed: 1956-08-10
Abstract: 868,712. Rectilinear - motion bearings. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Nov. 7, 1957 [Aug. 10, 1956], No. 24533/56. Class 12 (1). In a rectilinear-motion bearing comprising balls 5 located in a cage 4 disposed between an outer cylindrical sleeve 1 and a longitudinallymovable member 6, balls 8, of larger diameter than the balls 5, engage grooves 9 in the members 1 and 6 to locate the members angularly with respect to each other. Axial movement of the cage 4 is limited by circlips 10 fitted at the ends of the sleeve 1. The grooves 9 may be of V-shape or semi-circular cross-section. As. shown, there are four rows of longitudinallyarranged balls 8 engaging longitudinal grooves 9 in the members 1, 6, thereby preventing relative rotation between the members 1 and 6. Alternatively, the grooves may be helical to control limited relative rotational movement between the members 1 and 6.
Patent GB-498072-A (GB)
Title: Improved method of and means for the suppression of radio disturbances from electrical apparatus
IPC: H04B15/02
Filed: 1937-09-09
Abstract: 498,072. Protective arrangements. ENGLISH ELECTRIC CO., Ltd., SEDGFIELD, H. B., and CORNER, H. S. POUND-. Sept. 9, 1937, Nos. 24574 and 29132. [Class 38 (iv)] In electrical apparatus, the circuit of which includes a high current branch, such as a motor 2, and a low current or control branch, high-frequency disturbances therein are suppressed by providing, in the low current branch, a filter common to a group of apparatus such as contactor coils, in combination with means for reducing effects due to byepassing of the filter by stray inductive or capacitative coupling with the lead 5 to the filter. In a trolley bus, in which the major part of radio-frequency disturbances arises in the contactor coil circuits, filters 3a, 3b are inserted in one or both of the common leads to the contactor coils. Interference due to stray capacity is suppressed by two condensers 7 connected to the trolley arms and having their common connection earthed through a further condenser 8. The condenser 8 or one of the condensers 7 may be omitted. The leads 5 between the filters and the contactor coils, as also the conductors 4, should be kept short or else run as far as possible from the main conductors and preferably screened. The coils also should be screened. The filters 3a, 3b may be tuned to different frequencies. Each filter may be coupled with an auxiliary circuit to give two adjacent resonance points. The condensers 7 and the leads 9 thereto may be tuned as an acceptor circuit to the frequency to be suppressed.