baber/WOPTO huggingface dataset:
Patent GB-1167737-A (GB)
Title: Polymerisation of Lactams
IPC: C07D201/14
Filed: 1966-11-15
Abstract: 1,167,737. Anionic polymerization of lactams. MONSANTO CO. 15 Nov., 1966 [15 Nov., 1965], No. 51228/66. Heading C3R. In the anionic polymerization of C 4  or higher lactams in the liquid phase under substantially anhydrous conditions (a) a lactamate of Mg or a less electropositive metal and (b) an alkaline earth metal halide are separately distributed through the lactam. The lactamate may be formed in situ or added as a solution in a solvent, several of which are exemplified. Fillers or reinforcing agents may be incorporated in the polymerizing liquid; numerous materials are mentioned with particular reference to the reaction products of a filler and coupling agent described in Specification 1,089,697. In examples toluene diisocyanate or acetyl caprolactam is used as initiator, (a) is Mg or Zn caprolactamate and (b) is magnesium iodide, bromide or chloride or calcium chloride. Barium fluoride is also mentioned.
Patent GB-1027485-A (GB)
Title: Electromagnetic signal horn, more especially for automotive vehicles
IPC: G10K9/20
Filed: 1963-12-31
Abstract: 1,027,485. Electric horns. S.W.F.-SPEZIALFABRIK FUER AUTOZUBEHOER RAU G.m.b.H. Dec. 31, 1963 [Jan. 29, 1963], No. 51356/63. Heading G5J. In an audible signalling device, such as a motor horn of the kind having a diaphragm which is clamped around its periphery, and which carries an electro-magnetically driven armature at its centre, said armature 9, Fig. 2 (not shown) is integral with resonating masses 12, 13 which extent outwards from its centre and whose major axes are at right angles to its major axis and to the axis of the horn. As described, a diaphragm 4, Fig. 1 (not shown) is clamped to the rim 2 of a pot-shaped lower housing 1 by screws 11, which also secure a cover 10. The armature 9 is fixed to the centre of the diaphragm 4 by means of a screw 5, spacing discs 6, clamping discs 7, 8 and a nut. An electromagnet 3 is contained within the lower housing 1. The armature 9, Fig. 2 (not shown) has lateral lugs 12, 13 which are connected by web-like constrictions 14, 15 and it may be formed as a single stamping which can be fixed to the diaphragm 4 in either of two positions, spaced 90 degrees apart and each corresponding to a different volume of emitted sound.
Patent GB-1107090-A (GB)
Title: An improved machine for profiling or machining the ends of metal pipes or the face of pipe flanges
Inventor: REEKIE DAVID GLADSTONE BALFOUR
IPC: B23B5/16
Filed: 1965-12-07
Abstract: 1,107,090. Portable lathes; mandrels. DAVID REEKIE & SONS Ltd. 16 Feb., 1967 [7 Dec., 1965], No. 51782/65. Headings B3B and B3T. A portable machine adapted to be mounted on a pipe for profiling the end thereof or for facing a flange thereon comprises a tubular shaft 18 rotatably mounted in a casing and driven through gearing 15, 12, 17, a tool carrier outside the casing and driven by the shaft 18, a mandrel 28 extending within and out from the shaft 18 and a draw spindle 36 within the mandrel, axial movement of the spindle causing radial expansion of means on the mandrel adapted to grip the bore of a pipe 30; the casing together with the tool carrier can be displaced axially relative to the mandrel to set the tool against the pipe end. Axial displacement of the casing is effected by manual rotation of a handle 26 on a boss 25 which is in threaded engagement with one end of the mandrel. Operation of the draw spindle 36 to effect clamping is by manual rotation of a handle 41 on a sleeve 39 threaded to the end of the spindle. The tool carrier comprises a plate 20a which carries a guide 20 and slide 21 the latter having a tool support 22, radial adjustment of the tool being effected by a screw member 20b. Pawl and ratchet means, not shown, may provide incremental feed of the tool during cutting. The clamping means on the mandrel may comprise, as shown pairs of dished washers 32, 33 spaced by spacers 31 axial compression by the draw spindle serving to expand the washers into engagement with the pipe bore. Alternatively (Fig. 4, not shown) an expansible rubber sleeve may be used or clamping shoes which are forced radially by the action of pairs of wedge members drawn together by the spindle. An air motor 16 is mounted on the casing for drive of the tool carrier.
Patent GB-1313095-A (GB)
Title: Paper-board containers
IPC: B65F1/16
Filed: 1970-04-02
Abstract: 1313095 Refuse bins T S ROSS JNR 2 April 1970 [4 April 1969 19 March 1970] 52227/71 Divided out of 1313094 Heading A4A [Also in Division B8] An inner container for a waste bin described in the parent Specification 1313094 is made from a single piece of paper board 70 and comprises a box of rectangular cross-section having first and second end walls 74, 76 joined to front and back walls 78, 80 bottom closure flaps 112, 116 attached to one side of the front and back walls, first and second wall-reinforcing flaps 120, 126 each being attached to bottom closure flap 116 and overlying end walls 74, 76 the bottom closure flaps 112, 116 each being joined at one side to one of the front and back walls, first, second, third and fourth top closure flaps 96, 98, 160, 164 being attached to each other, one pair of opposed top closure flaps 160, 164 being provided with hand holes 140, 150 and with a pair of slots 142, 152 extending inwardly from the edge and positioned within corner portions 158, 162 of the respective flap and each of the other pair of top closure flaps 96, 98 being adapted for bending inwardly and downwardly to close the top of the container, with the corner portions folding inwardly and downwardly to accommodate the bending, the corner portions of each flap overlapping each other whereby the slats align with the hand holes and the overlapping corner portions provide additional reinforcing layers at the hand holes. The shaded areas are coated with glue, preferably an impact adhesive.
Patent GB-527179-A (GB)
Abstract: 527,179. Refractory substances. WITHERS. J. S. (Sullivan, J. D.). April 3, 1939, No.. 10317. Drawings to Specification. [Class 22] A basic refractory consists of magnesia bonded with barium silicate, the barium oxide and silica being present in a molecular ratio not greater than 2 to 1. The mixture may be fused in an electric furnace and on cooling the magnesia crystallizes as periclase, or it may be burned so as to fuse only the barium silicate. The silica may be added as ganister or may be derived from magnesium silicates such as olivine or serpertine. As a source of barium oxide, barium carbonate or sulphate which become decomposed by the heating may be added. Small amounts of alumina or iron oxide may be added. The product after grinding exhibits cementitions properties and may be used to bond other refractory substances.
Patent GB-1529826-A (GB)
Title: Apparatus for use in cultivating sugar cane
IPC: A01B49/06
Filed: 1975-12-30
Abstract: 1529826 Apparatus for cultivating sugar cane INSTITUTO NACIONAL DE LA REFORMA AGRARIA 30 Dec 1975 [30 Dec 1974] 53191/75 Heading A1B Apparatus for cultivating sugar cane, comprises means for working surface soil, for working sub-soil, and for delivering fertilizer to the soil. The apparatus straddles a row of sugar cane, and operates on the soil between adjacent rows. The horizontal rotary hoes 8 are rotated (to work the surface soil) by sprockets-and-chain 7 driven by half-shafts lying within a tube 6 and rotated via a reduction gearbox 10 by the tractor power take-off. The sub-soil is worked by ploughs 2, 5 vertically and horizontally adjustably clamped to the tube 6. Fertilizer is fed to tubes 18 from the hoppers 3 by a worm gear 14 driven by chain-and-sprockets 17 from the input shaft of the gearbox 10. The tubes 18 are secured to the rears of the inner pair of sub-soil ploughs 5, so that fertilizer is delivered to the roots at each side of the row of sugar cane plants. Two adjustable mouldboards are attached to the inner subsoil plough 5 for turning soil to close, and level or earth the furrow up. Flexible soil working shares are also mounted on the bar 26 for working fertilizer into the soil. Shields 9 are provided over the rotary hoes 8.
Patent GB-1537120-A (GB)
Title: Deburring tools for machining the mouth of bores
IPC: B23B51/10
Filed: 1976-12-21
Abstract: 1537120 Deburring tools HEULE AG VORRICHTUNGS - U MASCHINENBAU Gebr 21 Dec 1976 [30 Dec 1975] 53407/76 Heading B3C The cutting blades 17, 18, 19 of a tool for deburring the mouths of bores are radially outwardly urged, e.g. by adjustably spring- loaded ball 13, their outward movement being limited by faces 25 on the blades, Fig. 4, which engage the inner wall of the bore to ensure correct alignment. The movement is ultimately limited by sleeve 14, Fig. 1. In the alternative of Fig. 6 the effect of face 25 is provided by a ball 54 in a cup 51 which is mounted on a spring-loaded lever 53 which also carries a respective blade 17. The blade 17 or cup 51 may be adjustable along the lever. To prevent damage to the bore wall and to the workpiece top surface an assembly of bearings 21, 22, which may have a conical outer surface is provided and an adjustable stop sleeve 3 limiting the depth of cut is rotatable on tool body 8. In the alternative of Fig. 5 the force of spring 12 is adjustable by an axial screw 10 and the blades 37 are inclined to facilitate re-grinding without dismantling the tool.
Patent GB-1356239-A (GB)
Title: Active alumina shapes
IPC: C01F7/02
Filed: 1972-11-20
Abstract: 1356239 Alumina spheres KAISER ALUMINUM & CHEMICAL CORP 20 Nov 1972 [14 March 1972] 53447/72 Heading C1A Active alumina shapes are produced by (a) mixing an alumina containing at least 50% chirho structure and capable of at least partial rehydration with 5 to 35% by weight of a fibrous organic additive of average particle length 20-400 microns, (b) shaping the mixture into spheres, (c) curing in a moist atmosphere for 10-60 hours, (d) heating the cured spheres at 460-650 C. for a time sufficient to combust substantially all of the additive and, (e) recovering spheres of pore volume >0À5 cm.<SP>3</SP>g.<SP>-1</SP> and a bulk density of 400-675 kg.m.<SP>-3</SP>, at least 25% of the pore volume comprising pores of 800-17,500 angstroms. The mixture may contain 8-30% by weight of additive and the additive may be cellulose. The curing time may be 6-48 hours at 70-90 C. and the product may have a surface arc >250m.<SP>3</SP>g.<SP>-1</SP>, a crushing strength >3 hg and an abrasion loss <2%.
Patent GB-1249659-A (GB)
Title: Two or more layer printed circuit assemblies
Inventor: SCHNEBLE FREDERICK W
IPC: H05K3/18
Filed: 1968-11-13
Abstract: 1,249,659. Printed circuits. PHOTOCIRCUITS CORP. 13 Nov., 1968, No. 53739/68. Heading H1R. [Also in Division C7] In order to build up a multi-layer printed circuit assembly electrolessly plated printed circuit layers separated by insulating masks are sequentially formed simultaneously with electrolessly plated connecting pads in designated areas to form interconnections between the printed circuit layers. In the first embodiment, Fig. 1 a first circuit pattern 102 is formed on an insulating base 100 by a print and etch or electroless process and then a resin insulating mask 104 is screened over the whole of circuit pattern except in areas 103 which define interconnecting points between the circuit layers. An adhesive ink containing catalytic particles 106 is screened on the insulating mask 104 slightly overlapping areas 103 as at 107 and a second circuit pattern 108 electrolessly plated on the catalytic particles 106 together with a deposit 110 on pads 103. A connection is thus made between layers 102 and 108. As many layers and interconnections are deposited as required by repeating the steps. The first circuit pattern may be formed by depositing a layer of catalytic ink on the insulating substrate, Fig. 2 (not shown) in the form of the desired circuit pattern and then the circuit pattern is formed by electroless deposition. In the arrangement of Fig. 3 (not shown) the insulating base comprises a moulded resin base having dispersed therein finely divided particles of a catalytic agent and the first circuit pattern is formed by printing a negative insulating mask of the circuit pattern on the base and electrolessly plating the exposed areas. The second circuit pattern is formed on a non- conducting catalytic ink deposited on the first circuit pattern by printing a negative insulating mask on the catalytic ink and electrolessly plating. Alternatively the second circuit pattern may be formed by superimposing an insulating mask on the first circuit pattern, printing a positive pattern of the second circuit pattern on the mask with catalytic ink and electrolessly plating the second circuit pattern Fig. 4 (not shown). Various catalytic inks and base materials are described in which catalytic agents are dispersed in or coated on resin compounds together with copper electroless plating baths.
Patent GB-1190839-A (GB)
Title: Improvements in or relating to Drawing Frames
IPC: D01H13/04
Filed: 1967-11-27
Abstract: 1,190,839. Sliver guide. MAREMONT CORP, 27 Nov., 1967 '[30 Nov., l966], No. 53805/67. Heading D1N. A sliver conveying tube 30 is arranged between the last .pair of drafting rollers 14, 16 of a drawing frame and a .trumpet condenser 20 with the tube extending in a straight line 31 for a major portion of its length and then smoothly curving downwards towards the condenser 20, the straight portion 31 having a slotted opening 38 in its upper surface for facilitating piecing up of the sliver and the curved portion forming an enclosed passageway for the sliver. The exit end of the tube is supported within the condenser 20 by a cover plate 36 mounted on the tube. Between the rollers 14, 16 and the entry end of 'the tube a funnel shaped collector 40 is arranged in front of a depression plate 44. Both the condenser 20 and the tube and its associated collector 40 are pivotally mounted on frame 10. Plugging of aperture 42 causes bracket 50 to move out of contact with stop motion switch 54.
Patent GB-1211603-A (GB)
Title: Sterilization indicator material and tape containing the same
IPC: G01N31/22
Filed: 1968-11-14
Abstract: 1,211,603. Temperature indicators. CANADIAN TECHNICAL TAPE Ltd. Nov. 14, 1968 [May 7, 1968], No.54059/68. Heading G1D. An indicator material for determining whether steam sterilization has been applied comprises a mixture of calcium sulphide and lead carbonate, the calcium sulphide decomposing about 120 C to form hydrogen sulphide which then reacts to produce block lead sulphide. The indicator material is preferably applied in diagonal stripes 19 on a tape having a base of paper, cloth or Mylar (Registered Trade Mark) on which the stripes 19 are printed and covered by a steam permeable but water insoluble layer e.g of a methacrylate or urea-formaldehyde resin. The opposite face of the tape may be provided with a pressure sensitive adhesive so that the tape may be easily applied to an article to be sterilized. The indicator material comprises are part by weight of lead carbonate to 0À5 to 2 parts of calcium sulphide, preferably equal parts by weight are used.
Patent GB-1356697-A (GB)
Title: Web payout velocity control apparatus for use with a web fed mechanism
IPC: B65H19/16
Filed: 1971-11-22
Abstract: 1356697 Automatic control of web feed HARRIS - INTERTYPE CORP 22 Nov 1971 [7 Dec 1970] 54108/71 Heading G3R In an arrangement for feeding a web to a machine, the motion of a guide roller is automatically controlled to equalize the rate of payout from a web supply with a constant rate of feed to the machine. As shown, a printing press or corrugating machine P includes a mechanism 10 which pulls in web Wat a predetermined rate. The web is supplied from a roll A over a fixed guide roller 20 and a movable roller 22, which is normally in position 22a. When it is required to replace the roll A by a new roll B, a brake 12, 14 is applied to halt the rotation of rollA. As a result, the mechanism 10 pulls the roller 22 towards the machine P, and a chain and sprocket arrangement 24, Fig. 2 (not shown) to which the roller 22 is secured, drives a D.C. tachogenerator 27 and the output shaft of a D. C. motor 26. While the roll A is stationary, splicing is carried out. Subsequently, a relay 50 is energized to actuate a control circuit CC which receives a tachogenerator signal from a roller 56 indicating the actual web speed. This signal is used together with the signal from tachogenerator 27 to compute a continuously varying speed reference signal which is used to retard the motor 26 by dynamic braking so that the roller 22 decelerates at a constant rate under minimum tension until it stops at a predetermined position 22b. The rate of supply of web from the new roll B is now equal to the feed rate to the machine P and normal operation continues, during which the motor 26 returns the roller 22 to position 22a where it is locked until a further splicing operation is required. The control circuit CC, Fig. 4, includes contacts 86, 100 operated by the relay 50, and an integrator 80 which receives the signal from tachogenerator 27 and converts it into a measure of the distance moved by the roller 22 for comparison with a potentiometer 84 setting representing the distance L between positions 22a and 22b. The distance to the position 22b at the time of operation of relay 50 is stored in sample and hold circuitry 88, and combined with the signal from tachogenerator 54 in a multiplier 94, divider 96, integrator 102 and comparator 104 to produce a time-dependent velocity command signal for the motor 26. This is compared with the actual speed signal in a circuit 108 to provide a braking control signal for the motor.
Patent GB-1205415-A (GB)
Title: Improvements in or relating to forming machines
Inventor: GEORG OTTO
IPC: B21J7/28
Filed: 1967-12-06
Abstract: 1,205,415. Hydraulic presses. O. GEORG. 6 Dec., 1967 [1 Aug., 1967], No. 55451/67. Heading B5F. [Also in Division B3] A forming machine has two impact members 43, 44 each connected to a piston 45, 46 guided in a cylinder 47, 48 and two separate pressure medium control systems 55, 60 for moving the members 43, 44 relative to one another, one system producing a higher pressure than the other to enable the machine to operate as a hammer or a press. When a lever 52 is lowered and a lever 71 raised, high-pressure supply conduit 66 and discharge conduit 68 are connected to cylinder 47 to cause the machine to operate as a press. The rams 43, 44 are retracted by raising the lever 52. When the lever 71 is lowered, a low-pressure conduit 67 and a discharge conduit 69 are connected to the cylinder 47 to cause the machine to function as a hammer.
Patent GB-1214309-A (GB)
Title: Improvements in or relating to dry-operated cyclonic dust precipitators
IPC: B04C5/00
Filed: 1967-12-18
Abstract: 1,214,309. Centrifugal separator. CSEPEL AUTOGYAR. 8 Dec., 1967 [12 Dec., 1966], No. 55977/67. Heading B2P. A dry-operated dust precipitator for connection to an air-breathing machine comprises a cyclone casing 2 having a bladed ring 1 at its inlet for imparting a whirl to incoming dustladen air, a clean air outlet conduit 10 at the entry of which is provided a bladed deflector 7 of cruciform-cross section, and a dust extraction element 3 of truncated pyramidal form for directing the dust through an opening in the casing wall, one side T of the element 3 being extended to form a guide plate 4 which guides the dust towards the discharge element 3. The conduit 10 is connected to a conduit (shown in chain-dotted line) of the air machine by means of a clip 12, a metal ring 8 and a seal 9 providing an air-tight connection. The cyclone casing 2 is closed at its upper end by means of a cover plate 14 within which is mounted a perforated plate 13 acting as a coarse filter. The dust outlet opening at the base of the cyclone casing is in communication with a dust chamber 5 to which is sealingly connected a dust collector 6. The dust is separated from the air primarily by centrifugal action resulting from the whirl imparted by the bladed ring 1 and is discharged from the bottom of the cyclone casing 2 by means of the element 3. Any dust remaining in the air is precipitated in the casing 2 as the air flows through the deflector 7 which has the effect of decelerating the air flow. Relative dimensions of the various parts of the precipitator are given.
Patent GB-1472890-A (GB)
Title: Plug socket for an electric lead
IPC: H01R24/20
Filed: 1974-12-30
Abstract: 1472890 Twopart coupling KABELUKD METALLWERKE GUTEHOFFNUNGSHUTTE AG 30 Dec 1974 [23 April 1974] 56019/74 Heading H2E A socket for fixing on the end of an electric lead comprises an insulating, one-piece body 12 preferably of a plasticized polyvinyl chloride, injection moulded around an insulating insert 4 preferably of polyamide resin, which retains contact bushes 7, 8 having resilient contact portions which are freely movable in their radial direction. The conductors of the lead (not shown) are attached to connection lugs 9, 10. Portions of the insert 4 in contact with the bushes 7, 8 are of reduced thickness so that the latter are gripped by the pressure of the body 12.
Patent GB-1147697-A (GB)
Title: A process for increasing the sensitivity of photographic silver halide-gelatine emulsions
Inventor: BULLING LOTHAR
IPC: G03C1/09
Filed: 1966-12-15
Abstract: 1,147,697. Photographic silver halide emulsions. FILMFABRIK WOLFEN, VEB. Dec.15, 1966, No.56135/66. Heading G2C. Photographic gelatino silver halide emulsions are sensitized by adding simultaneously auric trichloride and a compound of one of the formulae:- where X is -S- or -CH(R 3  )-, Y is -C(R 6  )(R 7  )- or -C(CH 2  ) n  in which n is 2 to 7, R 1  is hydrogen or alkyl, R 2  and R 3  are each hydrogen, alkyl, -NH 2  or -CONH 2 , R 4  and R 5  are each hydrogen, alkyl, -NH 2  or -CH 2 R 8 , R 6  and R 7  are each alkyl and R 8  is halogen, -NH 2 , -OH, -SH, -NHR, -NR 2 , -OR or -SR in which R is alkyl. The silver halide is preferably silver chloride or silver bromochloride having at least 60 mol. per cent of silver chloride. A specified compound of the above formulae is
Patent GB-1243557-A (GB)
Title: Improvements relating to supporting structures for furnace linings
IPC: F27B3/12
Filed: 1969-11-18
Abstract: 1,243,557. Furnace casings. GENERAL REFRACTORIES CO. 18 Nov., 1969 [3 Dec., 1968], No. 56383/69. Heading F4B. The refractory lining bricks (not shown) of an electric arc furnace are enclosed by an outer casing of slotted steel plates 12. The size and spacing of the slots (Fig. 1, not shown), which are preferably vertical, are such as to provide maximum cooling of the refractory lining at the furnace hot spots, whilst retaining sufficient strength to withstand loads imposed on the casing during tilting of the furnace. Vertical steel I-beams 70 overlie the vertical joints between adjacent slotted plates, the latter being removably attached to the beams by way of angle iron clamps 72. Circumferential steel hoops 76, 128, 118 and 116 extend without and within the vertical beams to reinforce them, and support a radially slotted inverted dome shaped bottom plate 101, and a furnace roof 142 by way of a water cooled roof skew 134. Already existing solid steel outer casings may have slots cut in them to produce a like cooling effect on the refractory brick lining.
Patent GB-1302798-A (GB)
IPC: G11B15/29
Filed: 1970-10-26
Abstract: 1302798 Feeding record tapes; cassettes NEWELL INDUSTRIES Inc 26 Oct 1970 [3 Nov 1969] 57399/71 Divided out of 1302797 Heading G5R A cassette contains two rotatably-mounted hubs 107, 108 about which a length of tape is wrapped to form two rolls 105, 110 linked by a span 120 of tape, the cassette having an opening in the edge remotely opposite the span 120 adapted to receive a rotatable resilient body 118 for engagement with both tape rolls 105, 110. Individual drive motors 102, 103 are associated with the two tape rolls, and the rotatable body 118 transmits driving forces from one roll to the other. The inactive motor brakes whichever of the rolls is acting as supply roll.