baber/WOPTO huggingface dataset:
Patent GB-920071-A (GB)
Title: Apparatus for forming tubes
Inventor: FIELDEN ROY
IPC: B21C37/12
Filed: 1959-11-12
Abstract: 920,071. Making finned tubes; coiling; shearing. ROLLS-ROYCE Ltd. Nov. 10, 1960 [Nov. 12, 1959], No. 38485/59. Classes 82 (2) and 83 (4). A method of making a tube having an external helical fin from strip metal comprises the steps of giving the strip a channel section with a base and edge webs, wrapping the channel-section strip on a mandrel in a manner to bring the outer faces of the webs into contact providing a helical twist in the strip and joining the webs together as by welding to form a fin. A carriage 13, traversed by a lead screw in a direction parallel to a rotated mandrel 10 held between the tail stock 12 and headstock 11 of a lathe, carries a reel 15 of strip 16. The strip 16 passes from the reel through guide blocks 20 to rollers 21, on the carriage 13, which forms the strip into channel section with edge webs 16a and base 16b. The channel strip is then guided between two pairs of roller shears 24, Fig. 2, which trim the webs 16a to equal depth, the base portion 16b being supported by a roller 26. The channel strip is then guided by means 30 at a slight angle to the mandrel 10 to be wrapped therearound as the carriage 13 moves along and mandrel rotates, the end of the strip having previously been clamped at 14, to the head stock 11 adjacent the mandrel. The outer surfaces of the webs 16a are brought into contact as the strip is wound on the mandrel and are gripped together between rollers 34 carried at the end of the guide 30, these rollers being swung to a non-engaging position when the strip is first threaded through the machine. As the winding proceeds clamps 40 are put in position to prevent separation of the webs 16a. The mandrel 10 is supported over its length by vertically adjustable plungers 41 in bosses 42 on the carriage 13 and also supported by a steady 43. The webs 16a may be welded together in a seam welding machine, they may also be tack or spot welded as winding proceeds. The bore of the wound tube may be sized by drawing a nylon plug therethrough and the helical pin may be trimmed. In a modification, Fig. 4, a spiral guide 135, on a guide block 130 corresponding to the block 30, assists in the initial deflection of the lefthand web 16a into its correct helical path, a final guide 136 at the outlet co-operates with the extreme end of a guide member 132 to bring the webs 16a into contact. The webs are stitchwelded immediately after leaving the guides 132, 136 and are subsequently double seam welded. The finned tube may be used as a casing of a fuel element for a nuclear reactor as described in Specification 909,637 to which reference is made.
Patent GB-1352596-A (GB)
Title: Analog-to-digital-converters
IPC: H03M1/00
Filed: 1971-08-17
Abstract: 1352596 Angular position encoding NORTHERN ILLINOIS GAS CO 17 Aug 1971 [24 Nov 1970] 38547/71 Heading G4H Apparatus for the angular position encoding of a shaft 21 is adapted to provide a different set of outputs for each of a plurality of discrete positions of the shaft, the outputs being electrical A.C. signals of first and second phases, each output being taken to a different one of signal detecting circuits which circuits, when enabled, conduct a signal of the same phase as the input to a phase comparison flip-flop. As shown an insulating disc 28, not rotatable with the shaft 21, has 6 conductive elements A-F arranged as shown about its circumference, the disc being arranged adjacent a second, similar disc 26 rotatable with the shaft 21 having on the adjacent surface thereof two sets of conductive regions, one set 50, 51 shown in dotted lines, the other comprising 2 similar regions, occupying substantially the rest of the circumferential track on the disc 26, the first set 50, 51 of such regions being connected through the disc at 55 with a conductive disc-shaped region on the other surface of disc 26, and the second set being similarly connected to a concentric, circumferential, annular region 46, at 55<SP>1</SP>. Adjacent the two regions 46, 47 is a further disc 24, also stationary with respect to the shaft 21 having 2 similar concentric regions 32, 33 opposite regions 46, 47, the regions 32, 33 being connected to the outputs # 2 , # 1 , respectively, of an oscillator 30, these outputs both being sinusoidal and identical except that they are in antiphase. These signals are coupled via regions 32, 33 to regions 46, 47 and thence to the two sets on the disc 26, e.g. 50, 51, so that the signal 91 is present on the regions 50, 51, and # 2  on the other set. Owing to the shape, size, juxtaposition &c. of the elements A-F and the sets of regions on the disc 26, twenty unique combinations of A.C. voltage phase may be induced in the elements A-F representing 20 discrete positions of the shaft 21 depending upon which of the sets of regions on disc 26 is overlying which of the elements A-F to induce a voltage of phase # 1  or # 2  therein. Each of the elements A-F is taken to a gated input circuit 61-66 of an A./D. converter 27 and a position reading is made by causing a circuit 67 to sequentially enable each input circuit to apply the signal induced on each of the elements A-F in turn to a comparator 69 via a shaping and delaying circuit 68 where the output from a respective element is compared with a reference signal of phase # 2  and a "1" output is given for an input of phase # 1  and "0" for # 2 , the sequence of "1's" and "0's" so derived being stored and the 6-bit word then defining the position of shaft 21. The comparator comprises a flip-flop where the squared and slightly delayed signal from an element is used as the "set" input and the squared and undelayed reference signal is used as "reset". In a modification, Fig. 9 (not shown). the adjacent discs 24, 26 are replaced by concentric and overlapping cylinders.
Patent GB-1399461-A (GB)
Title: Linking means
IPC: A47C1/124
Filed: 1971-08-17
Abstract: 1399461 Inter-connecting chairs in rows NEW EQUIPMENT Ltd 11 Aug 1972 [17 Aug 1971] 38551/71 Heading A4U A pair of similar metal-framed chairs 1,1' are inter-connected side-by-side by a hook member 2 and an engagement eye member 3 which are bent up from wire or rod and have end parts 6, 5 welded to adjacent rear legs of the chairs, the hook formation of the member 2 having side limbs 4 with spaced vertical portions 8a, 8b between which an intermediate limb 9 of the member 3 is received. The member 2 is preferably mounted so that the hook formation depends from the end parts 6, the chairs being inter-connected by tilting the chair 1' laterally, to bring the aperture of the eye vertically below the hook, and then tilting in the opposite direction to bring the eye to the level of the entry opening of the hook. The limb 9 is then fully entered into the hook to a final position resting on the hook at a position vertically spaced from the entry opening. The side limbs 4 converge away from the parts 6 to fit with small clearance between the parts 5 so that tilting in a front to back direction is ineffective to disconnect the chairs.
Patent GB-1093738-A (GB)
Title: Stabilisation of ester group-containing synthetic resins
Inventor: BERNDT GERHARD
IPC: C08F2/00
Filed: 1966-08-30
Abstract: Synthetic resins containing ester groups are stabilized by adding to one of the starting components for the production of the resin, during the production of the resin or to the synthetic resin itself an aryl cyanate.  Suitable aryl cyanates are phenyl cyanate, o-, m- or p-phenylene dicyanate; o-, m- or p-methyl-phenyl cyanate; o-, m- or p-acetyl phenyl cyanate; o-, m- or p-nitrophenyl cyanate; n-nonyl phenyl cyanate; isododecyl-phenyl cyanate; 22 - bis(p - cyanato - phenyl) - propane; 1,3,5 - tricyanatobenzene; 1,5 - naphthalene dicyanate; o -, m - or p - dimethylaminophenyl cyanate and 4-dimethylamino-3-methyl-phenyl cyanate.  Polyfunctional cyanic acid esters may also be used.  The aryl cyanates may be used as such or in solution in an organic solvent such as acetone, chloroform, ethyl alcohol, dimethylformamide, carbon tetrachloride, acetonitrile and dimethylsulphoxide. Examples describe the stabilization of polyurethanes derived from polyester, but alkyd resins, polyester resins from polymerizable monomers and fumaric or maleic acid derived polyesters,copolymers of ethylene and vinyl esters, polymers of acrylic and methacrylic acid esters and their copolymers with vinyl esters and fluorinated acrylic esters may be similarly stabilized.
Patent GB-895524-A (GB)
Title: Improvements relating to hinged flap covers adapted for serving also as number plate carriers on motor vehicles
IPC: B60K15/05
Filed: 1959-11-16
Abstract: 895,524. Road vehicle bodies. DAIMLERBENZ A.G. Nov. 16, 1959 [Nov. 19, 1958], No. 38703/59. Class 108(1). A cavity 5 in a motor vehicle body houses a filler neck, 22 for a fuel tank and may be closed by a flap 7 hinged at 9 and bearing a number plate 8. In the fully open position of the flap the lower edge 14<SP>1</SP> of the bracket forms a stop, and the line of action of the flap closing springs 6 still extends over the axis of the hinges 9, but the strength of the springs is such that in the open position of the flap the closing moment exerted by the springs is a little less than the opening moment due to the weight of the flap plus the moment due to the frictional resistance of the hinges. The weight of the removed filler cap 23 when placed between lugs 21 on the flap may also assist in keeping the flap open. In the case where the springs are counteracted by the flap weight and hingle friction only, then even if the flap is left open after re-fuelling, movement of the vehicle will cause the flap to close. Adjustment of the closing moment may be effected by making an adjustable arresting stop for the flap, or arranging the points of action of the springs to be movable.
Patent GB-387892-A (GB)
IPC: C06F1/20
Abstract: 387,892. Cutting-presses; guillotine machines. AKTIEBOLAGET SIEFVERT & FORNANDER, Kalmar, Sweden.- (Assignees of Johansson, J. W. ; Sj÷akra, Bankeryd, Sweden.) May 26, 1932, No. 15015. Convention date, June 5, 1931. [Class 31 (i).] A match-strip machine comprises a supporting member having a number of grippers receiving the cardboard strip blanks and arranged to move step by step in a closed circuit for the blanks to be operated upon in two or more working positions. A vertical shaft 20 carries a strip-supporting disc 21 having six grippers comprising a lower plate 22 and an upper spring-pressed hinged plate 23. A toothed wheel 25 at the lower end of the shaft 20 meshes with a wheel 26 twice as large on the same shaft as a disc 28 carrying twelve rollers 29 between any two of which a cam disc 30 carried by a driving shaft 15 is adapted to engage so.as to hold the disc against rotation for a part of each revolution of the cam disc but cause it to rotate <1>/12 of a revolution during the remainder, the disc 21 thereby being rotated <1>/6 of a revolution for each revolution of the driving shaft. Beams 6, 7 operated from the shaft by means of pairs of lifting rods 9, 10 carry two pairs of cutting tools 31, 31<1>, and 32, 32<1>, the first pair cutting the splint ends to make relatively narrow heads and the second pair cutting the lateral edges. Each pair of tools is positioned at the same angular distance as the grippers, i.e. 60‹, and the insertion and removal of the strips are effected in line so that the same movement of reciprocating mechanism effects both operations. A band of material 45 passing over a table 48 between rollers 50, 51, and lateral guides 47, is gripped between a pressure plate 43 and a yieldinglymounted plate 44 carried by rods 33, 34, slidably mounted in the beams 6, 7 and reciprocated horizontally by means of a lever 38 and cam disc 35 on the driving shaft. After the band has moved so that a pair of grippers 22, 23 enter a central recess in the pressure plates to grip the front end of the band, a knife 56 severs a blank which is pushed into the grippers by continued movement of the plates. Retraction of the beams and a rotation of the disc 21 now occur bringing the blank between the first pair of cutting tools. Succeeding movements of the beams and disc cause the blank to be cut by the two pairs of tools and finally to be brought between discharging plates carried by the rods 33, 34 and comprising an upper pressure plate 63 and a pair of lower plates 66 having stop projections 72 which push the strip out of the grippers. The plates 66 now enter recesses in the wall of a receptacle 68 and are lowered slightly before withdrawal to press upon the pile of collected strips. In a modification, the material is supplied already cut into blanks which may comprise several strips.
Patent GB-1343529-A (GB)
Title: Method of x-ray crystal analysis and an x-ray goniometer for performing the method
IPC: G01N23/205
Filed: 1971-08-18
Abstract: 1343529 X-ray apparatus STOE & CIE GmbH 18 Aug 1971 [18 Aug 1970] 38803/71 Heading H5R  An X-ray eponiometer includes a collimator 12 for the X-ray beam X, and a pivotable unit in the form of a hinged parallelogram with rails 21 and 22 pivotable on bearings 19 and 20 and connected to a wobble mechanism, and supporting a crystal support 18 for holding a crystal K and rotating it about the axis A, and orthogonally directed alternative supports U and J for a camera unit which includes a disc-shaped film magazine, whereby with the film rotated parallel to the axis A Buerger photographs may be taken, while with the film supported normal to that axis de-Jong-Bauman photographs may be obtained. At the end of rail 22 adjacent to the crystal mount 18 is a bearing for an arcuate bracket 31 the other end of which is joined by a pivot 17 to a slide 25a which is adjustable along a segment 25 which is itself mounted for rotation by a motor about an axis 26 coincident with the beam X. For producing a Buerger photograph, the diaphragm 30 and camera B are positioned in planes parallel to the axis A, as shown in Fig. 1, and slide 25a is secured to the segment 25 by screw 39 at a desired angle Á to the beam X, whereafter rotation of the arc 25 about axis 26 causes rails 21 and 22 to wobble through  Á. For a de-Jong-Bauman photograph, the apparatus is arranged as in Fig. 2, with the slide 25a, and hence the rails 21 and 22, set to a desired angle, and with the camera B and a diaphragm 34 positioned normal to the crystal rotation axis, the crystal and the film being synchronously rotated about their respective axes by an electric motor. The camera mounts are adjustable to permit variation of the distance between the film plane and the crystal, so that the scale of the Buerger and the de-Jong-Bauman photographs may be made the same.
Patent GB-1098359-A (GB)
Title: Winding apparatus
IPC: B65H54/86
Filed: 1965-09-10
Abstract: 1,098,359. Winding waste yarns. LEESONA CORPORATION. Sept. 10, 1965 [Dec. 18, 1964], No. 38835/65. Heading D1J. A rotatable spindle for winding up waste yarn comprises a tapered body 8, Fig. 2, a plurality of rods 56 spaced around the body, and holding means 78 for pressing the rods 56 into an operably expanded position on the tapered body 8 to support yarn windings, the holding means 78 being releasable to free the rods 56 for movement towards the narrow end of the body 8 to a collapsed position where the rods retract from supporting the yarn windings. As shown the body 8 is hollow and the rods 56 extend at one end into slots 54 in a base cap 52. The other end of each rod is bent back on itself as at 58. Extending into the smaller end of the conical body 8 is a stud 62 having three channels 72 that are in alignment with three slits 70 in the body 8. The ends 58 of the rods 56 slide in the channels 72. To remove a waste yarn package the disc 78 is unscrewed from the spindle 76 and the package rods are pushed towards the apex of the cone. The body 8 is disposed below the main package spindle (14), Fig, 1 (not shown), the spindle (14) having means (40) to snag the yarn and So commence winding of yarn onto the main package spindle.
Patent GB-1483610-A (GB)
Title: Cation-exchanging aluminium silicates and a process for their manufacture
IPC: A61K33/06
Filed: 1974-09-06
Abstract: Novel alkali metal alumosilicates are prepared, which exchange cations, are insoluble in water, contain bound water and are amorphous in terms of X-ray diffraction, by reacting aqueous solutions of alkali metal silicate and alkali metal aluminate. The procedure comprises the following steps:   a) mixing together the alkali metal silicate solution and the alkali metal aluminate solution in the presence of 0.005-10% by weight (based on the entire reaction batch) of ionic surfactants which are stable with respect to hard water and are selected from the group of the anionic, zwitterionic and cationic surfactants under atmospheric pressure and at room temperature of the solutions, b) stirring this mixture continuously for approximately 30 minutes, the alumosilicate being precipitated, c) separating the precipitation product present as a suspension in the aqueous phase from the aqueous phase, d) freeing the precipitation product of mother liquor clinging thereto by washing with water which may, if appropriate, contain the same ionic surfactants, and   e) subsequent drying at temperatures of 20-150 DEG C.   In doing so, the process steps are tailored to one another in such a way, that the process product obtained is the novel alkali metal alumosilicate, which contains ionic surfactants in amounts of 0.01-50% by weight, based on the mixture of anhydrous alkali metal alumosilicate and surfactant, and bound water and which, per mole of Al2O3, has 0.7-1.5 mol of Cat2/nO (Cat = a cation of valency n) and 0.8-6 mol of SiO2 and a calcium-binding capacity of 50-200, especially of 80-160 mg CaO/g of anhydrous alkali metal alumosilicate and a particle size below 30  mu , preferably at most 8  mu .
Patent GB-1489668-A (GB)
Title: Belting for safety belts
IPC: B60R22/16
Filed: 1975-09-24
Abstract: 1489668 Finishing edges; woven fabrics ELASTIC-BERGER DHG 24 Sept 1975 [28 Feb 1975 13 May 1975] 39154/75 Heading B5K [Also in Divisions A3 and Dl] Woven belting for safety belts comprises a flat belt portion 21 and, integral therewith and along at least one edge thereof, a tubular portion 23, the warp threads in the portion 23 having a higher elongation at break than the warp threads in the portion 21. As shown in Figs. 3 and 5, the tube 23 is integral with the portion 21 and has weft threads 27.1 in common therewith. Preferably, the tube 23 has a weave in which <SP>3</SP>- 1  alternates with <SP>1</SP>- 3 . In one form, Fig. 4 (not shown), the tube 23 has half the weft density of the portion 21, e.g. the portion 21 has a <SP>2</SP>- 2  weave with a single weft insertion per shedding. In an alternative form, Fig. 6 (not shown), the portion 21 and the tube 23 have the same weft density, e.g. the portion 21 has a <SP>4</SP>- 4  weave with double weft insertion per shedding. The warp threads of the tube 23 are preferably finer than those of the portion 21. The warp threads of the tube 23 and the portion 21 are selected so as, in the woven belting, to break under the same breaking load but so that the warp threads in the tube 23 have a higher elongation at break than those in the portion 21. The warp threads of the tube 23 may be shrunk before weaving to a greater extent than the warp threads of the portion 21 or the warp threads, or plies thereof, of the tube 23 may have a higher degree of twist than the warp threads, or the plies thereof, of the portion 21. In an example, the weft threads are formed of a polyester and the warp threads of a polyamide 6, different warp threads being used for the tube 23 and the portion 21.
Patent GB-989276-A (GB)
Title: An excavator tooth assembly
Inventor: EYOLFSON PAUL
IPC: E02F9/28
Filed: 1963-10-05
Abstract: 989,276. Excavator teeth. ESCO CORPORATION. Oct. 5, 1963, No. 39302/63. Heading E1F. [Also in Division F2] The retainer for securing a digging tooth on a support comprises a wedge part 121 and a spool part 120 which is equipped on the rearward face with transversely spaced lugs 126 and on the forward face with transversely spaced apart, longitudinally extending ribs 124. The lugs 126 locate the spool in the tooth whilst the ribs 124 engage complementary ribs 125 in the wedge part 121. Various preferred configurations of the retainer are described.
Patent GB-1331210-A (GB)
Title: Clean air work station
IPC: F24F3/16
Filed: 1972-08-24
Abstract: 1331210 Cabinets for industrial operations; ventilating INTERNATIONAL BUSINESS MACHINES CORP 24 Aug 1972 [22 Sept 1971] 39375/72 Headings F4V and F4X In a work cabinet which may be used for manufacturing precision articles such as integrated circuits, a work surface 38 in the form of a horizontal perforated plate is disposed above the bottom surface 18 of an open-fronted work chamber 12 whereby a horizontal laminar flow of clean air can be directed through the chamber 12 above and below the work surface to blanket the article 32 on the work surface and prevent a flow of contaminated room air into the chamber. The back wall of the work chamber 12 is a filter 20. Intake air entering the cabinet through an opening 28 is supplied to a plenum 22 behind the chamber 12 by means of a motor driven fan (24, Fig. 1, not shown), the air then passing through the filter 20 and horizontally above and below the work surface which is supported by spacers 40. In an alternative embodiment (see Fig. 5) the position of the work surface within the chamber may be altered through a support arrangement comprising rods (44) each having a plurality of spaced holes (46) into which spring loaded pins may be inserted.
Patent GB-1143360-A (GB)
Title: Improvements in information processing systems
IPC: G06F15/78
Filed: 1966-10-21
Abstract: 1,143,360. Hybrid computers. ADAGE Inc. 21 Oct., 1966 [22 Oct., 1965], No. 39571/67. Divided out of 1,143,356. Heading G4A. A set of source selection gates SSG0-SSG29 is controlled by a digital source selection code S0-S8 for gating one of a group of sets of input terminals MD[0-29], S1[0-29] . . . S8[0- 29] to a set of rotation control gates RCG0- RCG29 controlled by a rotation code R0-R3 for gating the inputs of RCG to the outputs in an order determined by the rotation code #R0-#R3, and a set of transfer logic gates TCG0-TCG29 controlled by a transfer code to produce signals on a set of pairs of outputs RE, SE[0-29] which are a logical function, determined by the transfer code, of the signals on the inputs to gates TCG. Gates RCG, comprise gates 405, 407, 413, 415 selectively enabled by the rotation code to rotate the 30 input bits cyclically by 0, 1, 6 to 15 bits e.g. so that bit 0 appears at output 0, 29 24, or 15. Gates TCG comprise gates 419, 423, 421 enabled by the transfer code to perform the following operations :-T0, logical 1's copied at outputs SE, logical 0's copied at outputs RE. T1, logical 1's copied on SE, logical 0's ignored. T2, logical 1's ignored, logical 0's copied on RE. T3, complementing, i.e. logical 1's copied on RE, logical 0's copied on SE. Outputs SE, RE set and reset flip-flops in a destination register selected by a code D0-D15. The disclosure is identical to that of Specification 1,143,356.