baber/WOPTO huggingface dataset:
Patent GB-225744-A (GB)
Title: Improvements in reservoir attachments for pen nibs
IPC: B43K1/01
Filed: 1924-02-15
Abstract: 225,744. Smith, G. G. Feb. 15, 1924. Reservoir nibs.-A reservoir attachment for pennibs comprises a conically-shaped wire coil E lying under the nib B, a plate C connected to the coil and shaped to lie on the back of the nib, and a second plate D also connected to the coil and adapted to be inserted under the nib into the holder A. The coil C is provided with a larger convolu,ion at each end adapted to encircle the nib and to be secured to the plate C, the ends of which are bent over for this purpose and to cause the plate to stand away from the nib. The end of the plate D is bent at right angles, and a hole is pierced at the centre of the plate near the bend. The end of the coil is passed through the hole, around the nib, and back to the front of the plate D, where it is secured in position by solder.
Patent GB-342530-A (GB)
Title: Improvements in and relating to the manufacture of electrical insulating tubes
IPC: F16L9/16
Filed: 1930-02-05
Abstract: 342,530. Insulating tubes. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Meirowsky & Co. Akt.-Ges. ; Porz-on- Rhine, Germany.) Feb. 5, 1930, No. 3917. Drawings to Specification. [Class 99 (ii).] Electrical insulating tubes are constructed by winding paper strips impregnated with artificial or natural resin helically on a mandrel, and then winding an impregnated paper web at right-angles to the axis of the tube. One or more layers of helical strips may be used. The whole tube is baked and drawn off the mandrel and the seam-like line on the outer surface is removed by filing or turning.
Patent GB-473945-A (GB)
Title: A permutation lock for various purposes including the locking of steering wheels of motor vehicles
IPC: B60R25/021
Filed: 1937-02-10
Abstract: 473,945. Locking steering-wheels to prevent unauthorized use. CASEY, jun., C. Feb. 10, 1937, No. 3949. Convention date, Feb. 14, 1936. [Class 79 (iii)] [Also in Group XXV] A permutation lock for locking the steering- wheel of a car consists of a series of coaxial rotatable discs 5 formed with arcuate slots 6 concentric with the axis, said slots being widened at one point 7 to permit of longitudinal movement of the locking pin L when the discs 5 are correctly set. The lock itself is rigidly attached to a fixed central rod M and the pin L engages with a socket member 14 attached to a tubular steering column M'. A modification in which the rod M is rigidly attached to the steering column and the pin L passes through a keyhole slot formed in a flange attached to the column casing is described. A further modification in which the rod M is rigidly attached to the steering column and the pin L co-operates with a keyhole slot in a bracket rigidly attached to the vehicle is also described. In all the above modifications the lock is located in a recess formed above the boss of the steering-wheel and a metal bowl is welded in position around the socket element in order to protect it from interference. If desired, the discs 5 may be illuminated by an electric lamp.
Patent GB-927431-A (GB)
Title: Improvements in labelling apparatus
Inventor: COOPER ERNEST
IPC: B65C9/08
Filed: 1959-02-05
Abstract: 927,431. Labelling machines. ROSE BROS. (GAINSBOROUGH) Ltd. Feb. 4, 1960 [Feb. 5, 1959], No. 4052/59. Class 73. Labels 32, Fig. 1, are extracted from a magazine 38 by pads 34 on an intermittently rotated transfer member 16, the pads receiving gum from a roller 36, and an intermittently rotated carrier 14 provided with gripper units 17 receives the labels from the transfer member 16 and presents them to articles 11 carried on an intermittently movable conveyer 12. Each gripper unit is formed with a pair of laterally spaced ribs 41, Fig. 3, against which the labels 32 are nipped by cam-operated pivoted grippers 18 which are spring-urged into gripping position. As the gripper unit presents the label to the article 11, cam-operated rollers 42 on a bracket 43 pass between the ribs 41 to press the label into engagement with the article and move downwardly to roll the label on to the adjacent face of the article. The bracket 43 extends from a slide bar 44 mounted in a horizontal slideway 46 which itself is mounted on a vertical slidebar 49, movement of the bracket 43 being effected by the cam and link mechanism shown in Fig. 1. The presentation of the label to the article leaves a portion extending upwardly beyond the upper edge of the article and at a subsequent station, a further roller 67, Fig. 2 (not shown), rolls the portion of the label on the upper face of the article.
Patent GB-903809-A (GB)
Title: Tertiary-2,3-dimethylbutyl-2-amines
Filed: 1961-02-02
Abstract: The invention comprises amines of the general formula: (CH3)2CH-C(CH3)2NRR1 and their acid addition salts wherein R and R1 denote straight or branched alkyl radicals containing 1-4 carbon atoms, the total number of carbon atoms in R and R1 not exceeding 5, and the preparation thereof by reacting a 2,3-dimethylbutyl-2-amine or an N-(C1-C4)-alkyl-2,3-dimethylbutyl-2-amine with a reactive ester of a C1-C4 alkanol, optionally in the presence of an acid-binding agent or with an appropriate aliphatic aldehyde or ketone and formic acid or an alkyl formate (according to the Leuckart reaction) or reducing an appropriate aliphatic aldehyde or ketone in the presence of the above amines.  2,3-Dimethylbutyl-2-amine is prepared from 2,3-dimethylbutane-2-ol and sodium cyanide in glacial acetic/sulphuric acid and hydrolysing the N-formyl-2,3-dimethylbutyl-2-amine.  N-Isopropyl-2,3-dimethylbutyl - 2 - -amine is prepared from the primary amine and isopropyl bromide.
Patent GB-857071-A (GB)
Title: Improvements in and relating to induction motors
Inventor: SQUIRE ALLAN MAURICE
IPC: H02K17/16
Filed: 1956-02-09
Abstract: 857,071. Core construction. ENGLISH ELECTRIC CO. Ltd. April 10, 1957 [Feb. 9, 1956], No. 4075/56. Drawings to Specification. Class 35. An induction motor has a solid rotor having a macroscopically-homogeneous surface layer comprising a mixture of copper and iron of which at least 60% by weight is copper. The layer is applied by spraying, sintering or electroplating to an iron base forming the rotor magnetic core, and the base may be cylindrical or part-spherical and may be mounted on an aluminium support structure. The rotor may be hollow. The Specification describes examples of mixture proportions and layer dimensions. Specification 857,072 is referred to.
Patent GB-1255597-A (GB)
Title: Feed guide for sheet material
IPC: D05B21/00
Filed: 1970-01-28
Abstract: 1,255,597. Sewing machines. IVANHOE RESEARCH CORP. 28 Jan., 1970 [23 July, 1969], No. 4102/70. Addition to 1,239,980. Heading DIG. The sewing or other machine of the parent specification is modified by the provision of a floating ring 75 (or 113, Fig. 6 not shown) opposite the turnable gripping ring. Hydraulically operated work lifters 97, 98 are provided beneath the throat plate. In the embodiment of Fig. 1 the plate 75 is mounted in the throat plate; in another embodiment (Figs. 4-6 not shown) the turnable gripping ring is disposed beneath the work and the floating ring is positioned above the work. The ring, which presents a resilient surface (113a) is reciprocated by a connection to the armshaft.
Patent GB-474560-A (GB)
Title: Improvements in and connected with motor vehicle driving gear
IPC: B60K17/35
Filed: 1937-02-12
Abstract: 474,560. Motor -vehicle driving and differential gearing. DAIMLER - BENZ AKT.-GES. Feb. 12, 1937, No. 4204. Convention date, Feb. 12, 1936. [Class 79 (ii)] [Also in Group XXIV] Means for driving two or more axles through a common differential gear by a train of shafts passing therethrough, at least one of the said axles being a steering axle, is characterized by clutch means for de-clutching one of the shafts and thereby disconnecting the drive to at least one of the axles. In the construction shown a gear wheel d drives shafts a, b through a differential gear e, c, f, the differential cage c being fixed to the gear d and one of the differential members e being splined at e<1> to the shaft b. The other differential member f has internal teeth i<1> engaged by teeth i on a slidable clutch member k having other teeth m adapted to engage teeth m<1> on the cage c, and teeth q adapted to engage teeth r or s on the shaft a. The clutch member k is controlled by a hand lever p. In the position shown the teeth m, m<1> are in engagement and the differential cage c is locked to the member k and the shaft b to give a solid drive to the latter ; the clutch teeth q are not in engagement with the teeth r or a so that the shaft a, which preferably drives the steering axle, is free. If the clutch member k is moved to the right the differential gear is still locked by engagement of the teeth m, m<1>, and the teeth q, s engage so that both axles are driven positively. If the clutch member k is moved to the left the teeth m, m<1> disengage so that the differential gear is unlocked and acts normally, and the teeth q, r are in engagement to drive the steering axle shaft u as well as the shaft b. The differential gear is of a self-locking kind comprising a cage c, sliding members or rollers h, and inner and outer rings f, e having unequal numbers of curved surfaces g, g<1> engaged by the members h. The differential gears on the axles may be of the same kind as the main differential gear. The means for locking the main differential gear may be dispensed with.
Patent GB-510728-A (GB)
Title: Improvements in or relating to float-operated valves
IPC: F16K31/18
Filed: 1938-02-11
Abstract: 510,728. Float-operated valves. BARKER, J. Feb. 11, 1938, Nos. 4270 and 14633. [Class 135] In float - operated valves, the float A is eccentrically mounted either directly or by the addition of a crank or the like on the float arm B and is housed in a chamber C, the float being rotatably adjustable to a lower or upper position by means external to the chamber C so as to give the choice of two normal liquid levels. The invention is particularly applicable to boiler feed systems on ships and enables the necessary head of liquid to be maintained over a remote feed pump when the vessel has a temporary or permanent heel. As shown in Fig. 1, the float A is directly mounted eccentrically by bearings E on the float arm B and has a guide shoe F whereby when the arm B is depressed by a hand lever K against a stop J, the float may be rotated by a rotatable guide H mounted on a spindle N inside a removable door D. The guide H is prevented from axial movement by the engagement of its tips in a groove or recess formed in the door D and the chamber C. The spindle N is rotatable by a hand lever L or the like between stops M. When the adjustment is completed, the guide shoe F is again free to travel on the rotatable guide H and a fixed guide G. In other modifications, the float may be mounted on a crank the throw of which is adjustable, and whether directly mounted eccentrically or by means of a crank, the adjusting movement may be effected in the plane of the float travel, the door D in such cases being parallel to the said plane.
Patent GB-649916-A (GB)
Title: Improvements in and relating to high frequency oscillators
IPC: H03B5/18
Filed: 1948-02-13
Abstract: 649,916. Valve generating circuits. GENERAL ELECTRIC CO., Ltd., and HEATHCOTE, V. A. Feb. 13, 1948, No. 4320. [Class 40 (vi)] [Also in Group XL (a)] In a high-frequency oscillator of the kind incorporating an electron discharge device having two coupled coaxial line circuits, one circuit connected between the anode and control grid, and the other connected between the control grid and cathode of the device, the feed-back path between the grid-anode and grid-cathode circuits includes a cavity resonator having a resonance frequency equal to the frequency at which oscillations are generated. As shown, a valve 10 is arranged with its anodegrid circuit 11 and its grid-cathode circuit 12 in the form of coaxial lines, the inner conductor 13 carrying conductors for the cathode heater, and the outer conductor 14 of the grid-cathode circuit being brought close to the inner conductor at 15 to form a byepass condenser. A feed-back path in the form of a coaxial line 25 containing a resonator 18 is provided between a tapping point 16 on the inner conductor of the anode-grid circuit and a point 17 on the inner conductor of the grid-cathode circuit. The resonator, Fig. 2 (not shown) comprises an outer conductor of cylindrical shape closed at both ends, an inner conductor of cylindrical shape being disposed coaxially within the outer conductor, connected to the outer conductor at one end and spaced from it at the other end. The resonant frequency of the resonator may be adjustable as by adjusting the length of the inner conductor.
Patent GB-891513-A (GB)
Title: Method and machine for knitting patterned fabrics
IPC: D04B15/68
Filed: 1960-02-08
Abstract: 891,513. Knitting-machines. WILDMAN JACQUARD CO. Feb. 8, 1960 [Feb. 25, 1959], No. 4330/60. Class 74 (2). Jacquard patterning control is provided in a knitting machine whereby two selections can be made before each feeding station so that a needle may be selected to knit, miss, tuck or, in the case of a superposed cylinder machine be transferred to the other cylinder. As described in connection with a superposed cylinder machine, the jacquard patterning mechanism as illustrated in Fig. 1 is provided with the usual jack selecting levers 29 which are actuated by selectors 27 controlled from strip P of the jacquard mechanism. The strip is advanced twice prior to each feeding station by a Geneva mechanism and on the first occasion those selectors 27 which are selected are lowered by a first cam 50 to pivot the corresponding levers 29 so that they engage the upper butt 24 of two butts 24, 25 on the corresponding jacks 21. After this selection the levers and selectors are returned by a return cam 53 impinging on the levers 29. If a selector and lever are not actuated on the first movement the needle remains unselected and passes through the same system at a low level at which it retains its old loop and misses the new yarn for the next course. On the next advancement of the strip the selectors can either be selected again or not which in the first case when the same selectors as previously are selected causes the corresponding levers to engage this time beneath the lower butt 25 of the jack and so raise the jacks, sliders and their needles that the sliders are landed on a transfer cam 75 and transfer their needles to the other cylinder. On the other hand if the previously selected selectors are not selected on the second occasion the sliders which have been raised by the jacks on the first occasion, having been raised still further by their jacks engaging cam 58, pass along under cam 77 and knit under stitch cam 78. If a selection is made of a selector on the second advancement of the strip P which was not selected on the first advancement then the corresponding lever engages beneath upper butt 24 and raises its jack so that it engages a tuck cam 59 whereby the corresponding slider is advanced only sufficiently to cause its needle to take yarn without clearing and to draw a tuck loop under stitch cam 78.
Patent GB-397125-A (GB)
Title: Improvements in or relating to the manufacture of sliding clasp fasteners
IPC: A44B19/26
Filed: 1932-02-15
Abstract: 397,125. Sliding-clasp fastenings. HAPPOLD, E. C., 114, Green Lanes, Wylde Green, and LIGHTNING FASTENERS, Ltd., Witton, both in Birmingham. Feb. 15, 1932, No. 4507. [Class 44.] A sliding-clasp fastening of the type in which two rows of interlocking fastener elements are adapted to be connected and disconnected by a slider has the slider provided on both sides with tabs 2, 3 attached to substantially central lugs 4, 5 so that the tabs can pivot in the direction of movement of the slider. The lugs may be formed by the heads of a central strengthening rivet extending through the slider.
Patent GB-1279913-A (GB)
Title: Photographic silver halide material
Inventor: GRABHOFER HERBERT
IPC: G03C1/81
Filed: 1970-01-30
Abstract: 1279913 NC layer for photographic silver halide materials AGFA GEVAERT A G 30 Jan 1970 [30 Jan 1969] 4555/70 Heading G2C A photographic material comprises at least one supported light-sensitive silver halide emulsion layer and an NC layer on the surface of the support opposite that bearing the emulsion layer, wherein the binding agent for the NC layer consists of at least 80% by weight, based on the total amount of binding agent, of a copolymer containing 65 to 80% by weight of acrylamide, 2 to 25% by weight of acrylonitrile, 2 to 15% by weight of acrylic acrylic acid or methacrylic acid and 0 to 20% by weight of an acrylic acid alkyl ester or methacrylic acid alkyl ester, the alkyl group of which may be substituted by hydroxyl groups, and up to 20% by weight of gelatine. The NC layer may be hardened by, for example, an aliphatic aldehyde, an aliphatic α- or γ-diketone, an ethylene oxide derivative containing at least two epoxide groups separated from each other by an aliphatic radical or a triazine derivative containing at least two hardening groups or a mixture of these hardeners. These NC layers even when thin have a high anticurling effect and an improved scratch-resistance.
Patent GB-554999-A (GB)
Title: Improvements in vaginal obturators
IPC: A61F6/08
Filed: 1941-04-08
Abstract: 554,999. Pessaries. POPPER, O. April 8, 1941, No. 4680. Convention date, May 15, 1940. [Class 81 (ii)] A vaginal obturating appliance comprises a disc 10 consisting of plies of flexible material, and a collapsable spider 12 for supporting the disc in expanded condition. The spider consists of arms 13 of e.g. spring steel joined at the centre 16 at which is attached a withdrawing cord 15. An intermediate ply of impervious material may be located between the outer plies forming the disc. An applicator is used with the appliance comprising a tube 21 and a plunger 24 having an operating tab 25 projecting: through a slot in the tube.
Patent GB-823619-A (GB)
Title: Improvements in shuttles for looms for weaving
Inventor: DAWSON JOHN
IPC: D03J5/00
Filed: 1957-02-12
Abstract: 823,619. Loom shuttles. DAWSON (SHUTTLEMAKERS) Ltd., T. Jan. 8, 1958 [Feb. 12, 1957], No. 4682/57. Class 142(2) A clip A of synthetic resin engages grooves in the sides and -bottom of a shuttle and positions a flange con the pirn C. The clip has lugs a which engage recesses at the tops of the grooves and may have further lugs a<SP>1</SP> engaging recesses in the bottom of the shuttle. By providing two grooves in the shuttle, the position of the clip can be adjusted. Specification 796,617 is referred to.
Patent GB-481827-A (GB)
Title: Improvements in method and apparatus for the production of fibers from molten glass and similar meltable materials
IPC: C03B37/06
Filed: 1937-02-17
Abstract: 481,827. Making glass fibres. MODIGLIANI, P. Feb. 17, 1937, No. 4758. [Class 56] [Also in Group XII] In the manufacture of fibres, e.g., by subjecting a stream of molten glass to a blast of steam or gas, the stream is caused to flow in a sinuous and preferably helical path, e.g. on an inverted cone 15, Fig. 1, in a heating chamber 11 on its way to the blast nozzle 21 or other drawing means. In this arrangement cullet is fed through an opening 12 and is melted on the top of the cone. In a modification, the heated stream falls on a radiallygrooved mushroom-shaped body and is thus divided into smaller streams which are then drawn out by blast nozzles or rollers. The mushroom-shaped body or the nozzles or both may rotate. As shown in Fig. 5 the stream after subdivision by the body 28 is blown up separate tubes 37 which are heated by the exhaust gases from the heating chamber. The dish 36 carrying the tubes may be rotatable. In a further modification, Fig. 7, the exhaust gases are led through tubes 43 (which may be horizontal instead of inclined) enclosing smaller tubes 44 through which the fibres are drawn by the steam blast. The distributer 28 and the pipes or, as shown, the entire structure may be made to rotate. In a further modification, Fig. 9 (not shown), additional steam inlets are provided. A modified distributer is shown in Fig. 10.
Patent GB-548551-A (GB)
Title: Improvements in or relating to strengthened metallic members and method of producing same
IPC: C21D1/10
Filed: 1941-04-11
Abstract: 548,551. Heat treating. BUDD INDUCTION HEATING. Inc. April 11, 1941, No. 4871. Convention date. April 11, 1940. [Class 72] [Also in Group XXII] In order to place the hardened zone 12 of a tube 10, plate, or other metallic member, which may have been treated as described in Specification 520, 479, under a residual tension or. at least, a reduced compression and the less hardened zone 14 under a residual compression- or, at least, a reduced tension the zone 12 is expanded to stretch the zone 14 beyond its elastic limit. The expansion of the zone 12 may be effected by heating it rapidly to 400‹F. or other temperature below the critical hardening temperature by the apparatus 16 described in the prior Specification. This may be done progressively throughout the length of a long tube and if desired repeated. A temperature sufficient to draw the original hardness somewhat may be used if the tube is overhardened originally. If the zone 12 may be heated to low temperature only the whole tube may be refrigerated first. In order that the zone 12 shall stress the zone 14 beyond its elastic limit instead of vice versa the ratio of the yield strength of the zone 12 to that of the zone 14 must be greater than the ratio of the thickness of the zone 14 to that of the zone 12. In modifications the expansion of the zone 12 is effected by flame heating or by the use of high internal pressure. The stresses may be limited to those in an axial or a circumferential direction by placing the tube, during the process, in a rigid shell or by preventing axial extension.
Patent GB-1101571-A (GB)
Title: Telephone instrument spark suppressing means
IPC: H04M1/74
Filed: 1966-02-03
Abstract: 1,101,571. Substation circuit. TELEFONAKTIEBOLAGET L. M. ERICSSON. 3 Feb., 1966 [5 Feb., 19651, No. 4887/66. Headings H4J and H4K. In a telephone subset, a semi-conductor device T, which is normally connected in series with the bell B across the line wires, is connected across the dialling contacts so as to act as a spark suppressor when the handset is lifted. The device which is described in Specification 1,070,411 has a thyratron-like characteristic in that it is switched on by a voltage above a predetermined value and is switched off when the current flowing through it falls below a certain level. The voltage threshold is chosen to be higher than any possible speech voltage but lower than the ringing voltage. The device operates in a similar manner in either the forward or the reverse direction. The cradle switch is simplified since the conventional change-over contacts thereof may be replaced by a single make contact.