baber/WOPTO huggingface dataset:
Patent GB-1171241-A (GB)
Title: Polyamide-Diamine Derivatives and Polymers produced therefrom
IPC: C08G73/14
Filed: 1967-01-26
Abstract: 1,171,241. Coatings. GENERAL ELECTRIC CO. 26 Jan., 1967 [23 Feb., 1966], No. 3897/67. Headings B2E and B2K. [Also in Divisions C2 and C3] Substrates may be coated with a polyamide amide acid, suitably of the formula: wherein R is a tetravalent organic radical containing at least two carbon atoms, R<SP>1</SP> is a saturated or unsaturated C 1-40  straight chain aliphatic hydrocarbon radical, R<SP>11</SP> is a divalent aromatic group, n is at least 2 and x is from 1 to 3, obtained by reacting at least one dianhydride of the formula: with an equimolar amount of a polyamidediamine of the formula: the coating may subsequently be cured to give the corresponding polyamide-imide of the formula: In the specific examples the following substrates are coated: aluminium, aluminium foil, glass, copper and copper wire.
Patent GB-766330-A (GB)
Title: A process for finishing textile materials
IPC: D06M15/267
Filed: 1952-02-13
Abstract: Finishes which have an increased fastness to washing are produced on textile fabrics by impregnating the warp threads, prior to weaving, with an aqueous dispersion of a water-insoluble vinyl polymer or copolymer, the dispersion also containing a water-soluble or water-swellable sizing agent, and then calendering the woven fabric while hot, if desired, after being steamed.  Specified polymers are polyvinyl acetate, a polyacrylic acid ester, polyvinyl chloride or copolymers thereof or copolymers of these resins with polyacrylic or polycrotonic acids.  Specified sizing agents are starch, dextrin, glue and other proteins and polyvinyl alcohol.  In the examples the dispersion is applied to warps of cotton or regenerated cellulose and contains, as additional agents, sulphonated tallow, the sodium salt of cellulose glycollic acid and a paraffin wax emulsion.
Patent GB-1027482-A (GB)
Title: Improvements in or relating to a dispenser for sheet material
Inventor: GREEN JOHN PHILIP KORTRIGHT
IPC: A47K5/04
Filed: 1963-01-30
Abstract: 1,027,482. Leaf dispensers. PARACHEM CORPORATION. Jan. 30, 1963 [Jan. 30, 1962], No. 3907/63. Heading B8P. A sheet dispenser 11, e.g. for cleansing leaves, comprises a housing 13 containing a stack of leaves 22 within a carton 12 which is supported. on shelves 23. The space between these shelves allows a finger to contact the lowest leaf and withdraw it against a lip 21, which serves as a thumb rest, at the base of the front wall 14 of the housing. The housing is attached to a vertical wall 31 by hooking a flange 34 at the edge of its top wall 18 over a flange 33 on a mounting bracket 27 on the wall, and sliding the base 17 of the housing beneath a latch spring 26, on the mounting bracket, until lugs 35 on the spring snap over the base to hold the housing in position. The carton 12 is closed by conventional means at its top 50, whose front edge rests against the inside of the housing, and at its base has flaps 61, 62, 65, 66, cut-away portions 53, 57, 58, and a notch 54 which permits the contents remaining to be seen. The cut-away portions allow leaves to be slid from the carton, and a prong 68 on a plate 67 fastened to the flap 66 which is folded over flap 65 so as to trap the side flaps 61, 62 projects upwards into the carton, pierces the lower leaves, and ensures that only one leaf is withdrawn at a time. Any surplus left behind the prong when a leaf is removed falls away through a hole 74 and a notch 75. The leaves are pressed downwards by a hinged weight 42, which slides downwardly easily, but whose outer edges jam against the carton walls when an upward force is applied, thus facilitating removal of a leaf. To maintain the weight in a shallow V-shape an insert member 43, with upturned edges, is placed on the stack of leaves.
Patent GB-1368805-A (GB)
Title: Cylindrical freestanding container
IPC: B65D21/02
Filed: 1971-02-04
Abstract: 1368805 Portable containers POLYTHENE DRUMS Ltd 24 Jan 1972 [4 Feb 1971] 3942/71 Heading B8D A plastics cask 10, preferably blow-moulded of polyethylene or polypropylene, is provided with an upper end 13 having an annular chimb 18, which is spaced inwardly of the periphery and which is interrupted to accommodate a capped dispensing spout 16, and a lower end having a peripheral chimb 33, which is interrupted at 34 to accommodate the dispensing spout of an identical cask when two such casks are stacked one upon the other with the lower chimb of the upper cask encompassing the upper chimb of the lower cask. The lower chimb of the upper of the two stacked casks abuts the peripheral portion 19 of the upper end of the lower cask, and the upper chimb of the .lower cask engages the end surface 32 of the upper cask within the lower chimb. The capped spout 16 of the lower cask, is located in an upper end recess 15 and engages the bottom of the upper cask at the position of the interruption 34. A blister 22 is formed in the upper end and is provided with holes in blister end walls 23 for receiving the ends of a handle 26. The upper chimb is provided with additional diametricallyopposed interruptions 20 to permit the formation of said holes. The interruptions of the upper and lower end chimbs are axially aligned.
Patent GB-634186-A (GB)
Title: Improvements in dynamo electric machines
IPC: H02K9/06
Filed: 1947-02-11
Abstract: 634,186. Cooling dynamo-electric machines. AKTIEBOLAGET HARNOVERKEN, and RAMQVIST, N. A. Feb. 11, 1947, Nos. 3991 and 3992. Convention dates, Feb. 12, 1946, and Oct. 22, 1946. [Class 35] A set of fan blades carried by the rotor shaft is disposed outside one bearing bracket of an open machine and blows air entering by apertures in the bracket over the machine outer surface while another set causes air to pass through the interior of the machine. As shown, air entering at 8 passes over the fins on the machine periphery and is joined at the fan exit by air which has entered at 9 and passed through the machine. In another form, all the air enters at 8 and some blades of the fan pass the air straight to the machine exterior and the others propel it straight through the machine so that it leaves at the end remote from the double fan.
Patent GB-741951-A (GB)
Title: Improvements in or relating to apparatus for sorting statistical record cards and the like
Inventor: MANN OSWALD
IPC: G06K21/04
Filed: 1953-02-13
Abstract: 741,951. Statistical apparatus. COPELAND, CHATTERSON CO., Ltd., and MANN, O. Jan. 29, 1954 [Feb. 13, 1953], No. 4141/53. Class 106 (1). Statistical record cards of the type having perforations adjacent to one or more of its edges adapted to be opened out so as to enable sorting to take place by means of rods, are sorted in the apparatus shown in Fig. 1 by means of such sorting rods and mechanical agitation which ensures that the required cards fall away from the pack. The cards are supported on a removable plate 12 accommodated in slots in the side members 1, 2, while the sorting rods 17 are passed through the cards and the perforated plate 14. The other end of the sorting rods 17 rests on a notched plate 13. The plate 12 is removed and sorting takes place when the wanted cards, i.e. those with the data representing holes opened out, fall away from the pack. To assist the sorting operation a reciprocating motion is given to the members 13, 14 by means of eccentrics mounted on the rod 28 which is driven by a suitable crank or electric motor. A brush 34 is also provided to bear down on the tops of the cards during agitation and assist the segregation of the wanted cards.
Patent GB-549926-A (GB)
Title: Attenuation equalizer
IPC: H03H7/075
Filed: 1942-03-28
Abstract: 549,926. Impedance networks. STANDARD TELEPHONES & CABLES, Ltd. March 28, 1942, No. 4180. Convention date, Oct. 24, 1940. [Class 40 (iii)] A variable attenuator comprises a number of sections connected in parallel at their input ends and coupled at their output ends to a high impedance load by a condenser potentiometer. The sections are preferably of constant resistance type and their loss characteristics are linear over the working frequency range, the loss being the same for all the sections at some frequency at the lower end of the range, as indicated in Fig. 5. Sections 2, 3 may be of the bridged-T type shown in Fig. 2 having a rising characteristic and sections 5, 6 may be of the bridged-T type shown in Fig. 3 having a falling characteristic, while section 4 is a simple resistance pad giving uniform loss. A further section 1 similar to section 2 may be connected in tandem therewith, the combination having a characteristic curve 11 slightly displaced from the common point 39 of the curves of the other sections. Sections 1, 3, 5, 6 are terminated in their image impedances and resistances 8, 9, 10 may be added to adjust the loss at certain frequencies. Section 7, which gives a gain over a part of the working range may be designed as shown in Fig. 4, in which the series and shunt impedances are connected by the relation Zc(Za+Zb-Ro)=Ro<2>. The condenser potentiometer comprises fixed plates 31-37 connected to the various sections and a plate 30 which may be moved manually or automatically, for example, under the control of a pilot current, to bring it opposite any one or an adjacent pair of the fixed plates.
Patent GB-121234-A (GB)
Title: Improvements in the Manufacture of Traverse Net on Twist-lace Machines.
Inventor: JARDINE ERNEST
IPC: D04C5/02
Filed: 1918-03-11
Abstract: 121,234. Jardine, E., and Geisendorfer, F. March 11, 1918. Lace.-In the manufacture of traverse net on machines with two tiers of carriages, the front and rear bobbin threads A, B are caused to twist with three successive warp threads C in one direction followed by a twist in the reverse direction with a fourth warp thread. As shown, the reverse twists of the rear bobbin threads B occur at a, alternating with those of the front bobbin threads A, which occur at b. A repeat of 12 motions produces four crossings D. The movements of the front comb-bar and front and back warp guidebars are described.
Patent GB-184497-A (GB)
Title: Improvements in or relating to the construction of tubular, arched and like structures
IPC: E21D11/10
Filed: 1921-02-05
Abstract: 184,497. Robbins, W. S., and Robbins, J. Feb. 5,1921. Tunnels.-Tubular, arched, and like structures, such as tunnels, culverts, sewers, and arches, are formed of spaced sectional ribs 6 of pre-cast concrete and concrete slabs 12 fitted between the ribs and interlocking therewith, the outer face of the wall or walls so formed being covered with concrete &c. 13. The rib sections are connected by fish-plates 10, dowels, or the like. Rods 11 hold the ribs in spaced relation and may be withdrawn as the work proceeds. The ends of the slabs are bevelled to engage bevelled surfaces of the ribs, and the sides of the slabs have bevel, dowel, or other engaging means. The top slab is longitudinally divided. The structure may have an inner lining of concrete &c. In a modification, Fig. 5, an inner lining 14 of glazed bricks extends through half the structure, the half-ribs being then of different radii, feet 15 facilitating connection.
Patent GB-277608-A (GB)
Title: An improved fountain pen desk stand
IPC: B43M99/00
Filed: 1927-02-15
Abstract: 277,608. Sheaffer Pen Co., W. A., (Assignees of Fremon, J. A., and Haven, A. S. de). Sept. 17, 1926, [Convention date]. Pen stands.-A stand or holder for fountainpens comprises a cylindrical receptacle 13 pivotally mounted upon a base 10 to receive the nib end of a fountain pen 15, and means mounted upon the base for supporting the pen in an inclined position. The lower end of the receptacle 13. is secured to one leaf of a hinge 22. the other leaf being secured to the base 10, and a spring 24 connected between the base and the outeredge of the end of the receptacle tends to hold the latter in an elevated position, thereby facilitating the insertion of the pen. To limit the elevation of the receptacle due to the pull of the spring, lugs 23 are provided on each side of the hinge leaf attached thereto and abut against the base 10, or the lugs may be integral with the receptacle. When the pen is inserted within the receptacle its weight causes the receptacle to swing downwardly until the outer end of the pen rests within a recess in the vertical portion 20 of an L-shaped member 21 attached to or integral with the base. A substantially air-tight chamber 16 to prevent the evaporation of ink from the nib is formed by reducing a portion of the bore 14 of the receptacle to provide a square or tapered shoulder 19 against which the lower end of the pen barrel bears.
Patent GB-267678-A (GB)
Title: Improvements in process of manufacturing pneumatic tires
IPC: B29D30/06
Filed: 1926-02-15
Abstract: 267,678. Krusemark, F. A. Feb. 15, 1926. Moulding wheel tyres. - Pneumatic tyres having ventilated puncture e resisting treads as described in Specification 250,512, [Class 144 (ii), Wheel tyres, Pneumatic &c.], are formed by building up the carcase in normal fashion and surrounding with green tread rubber and recess forming pins spaced apart and thereafter forcing the rubber around the core pins in the mould by internal pressure, and then vulcanizing. The tread rubber 2 may be applied in two sections, one before the core pins are positioned and the other after, this method being usually adopted when a breaker strip 3 is used in the tread. Any mould may be used, an example being described in Specification 266,885, but the one shown has two side plates 4 and core pins 6 carried by a ring 7. The pressure is applied by an internal air bag 8, and the rubber may be forced up to surround the core pins either before or after the second tread section is applied. Specifications 100,397 and 192,475 also are referred to.
Patent GB-1267381-A (GB)
Title: Improvements relating to trolleys for transporting and launching boats
Inventor: HUMPHREYS TERRENCE
IPC: B60P3/10
Filed: 1969-01-03
Abstract: 1,267,381. Boat trailers. LEW-WAYS Ltd. 3 April, 1970 [3 Jan., 1969; 25 Jan., 1969], Nos. 524/69 and 4333/69. Heading B7B. A boat trailer has pairs of boat supports 13 in the form of pneumatically inflatable rotatable members. The supports may be pneumatic tyred wheels or may be moulded from plastics and each comprise an inflatable portion surrounding a hub portion mounted on an axle for rotation. A cross-member 4 has a pair of sockets 10 at either side of a central spine 1 to receive tubes 11 to accommodate boats of different size. The keel of the boat is supported by solid wheels 4 and a roller 15.
Patent GB-563421-A (GB)
Title: Improvements relating to thermionic valve oscillators
IPC: H03B7/04
Filed: 1943-02-08
Abstract: 563,421. Valve generating circuits. COSSOR, Ltd., A. C., and WYNN, A. H. A. Feb. 8, 1943, No. 4340/44. Divided out of 563,486. [Class 40 (v)] A transitron oscillator is arranged for generat ing approximately sine wave oscillations and is provided with a de generative feed back path from the anode to one of the grids, the feed back path includ ing a bridge balanced at the frequency of oscillation. The Figure shows a sine-wave transitron circuit with the screen and suppressor grids coupled by a condenser C2 and including resistances R1, R2, the former shunted by a condenser C1. The output voltage is taken from the anode load and is also applied to twin-T networks consisting solely of condensers and resistances to provide degenerative feedback which is ineffective at the bridge balancing frequency.
Patent GB-537096-A (GB)
Title: Improvements relating to joint boxes for connecting and disconnecting electric cables
IPC: H02B1/00
Filed: 1940-03-08
Abstract: 537,096. Junction boxes. CALLENDER'S CABLE & CONSTRUCTION CO., Ltd., and ELLIS, W. F. March 8, 1940, No. 4366. [Class 38 (i)] A junction box having bus-bars 6 and cable terminals 5 arranged for connection by removable fuses or links, and having a separate upper part 2 which is removed to give access to the cable sockets 8 at the lower end of the terminals 5, has the joint 11 between the upper part 2 and the lower part 3 arranged approximately on a level with the base 12 so that when the part 2 is removed there are no side walls on the part 3. In order to provide for the cable entries 41 the base 12 slopes downwards at the ends and has side walls 13, Fig. 1, to maintain the line of the joint 11. In a modification the base 12 is on one level and plates 15, Fig. 3, carrying cable entry glands 16 are provided.
Patent GB-1070480-A (GB)
Title: Aerofoil shaped blade for a fluid flow machine such as a gas turbine engine
Inventor: HALLS GORDON ALLAN
IPC: F01D5/18
Filed: 1966-02-01
Abstract: 1,070,480. Turbine blades. ROLLS-ROYCE Ltd. Feb.1, 1966, No.4498/66. Heading F1T. Each turbine nozzle guide blade in a gas turbine engine comprises an external wall 20 surrounding an internal liner 16 provided over a major portion thereof with a multiplicity of holes 25 through which cooling air supplied by the engine compressor passes from an inner chamber 17 to a space 21 between the liner and the external wall so as to effect cooling of the wall. The air then flows over radially spaced baffles (32), Fig. 2 (not shown), to leave the blade through one or more apertures 26 at the trailing edge 24. Each blade is mounted in an annular combustion chamber (12), Fig. 1 (not shown), and some of the air from chamber 17 flows directly through radially spaced passages 31 to enter the combustion chamber as dilution air. Very few holes 25 are provided adjacent the radially inner and outer ends of the liner 16.
Patent GB-1219972-A (GB)
Title: Luminescent device
IPC: H05B33/00
Filed: 1968-01-29
Abstract: 1,219,972. Electroluminescence. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 29 Jan., 1968 [30 Jan., 1967], No. 4590/68. Heading C4S. An electroluminescent display comprises EL element 100, excitable by an A.C. source 400 (e.g. 1 kc.), the waveform of the luminescent output being controllable by a unidirectional electric source 500, energy responsive element 200 (e.g. photoconductive, pressure sensitive resistive or magnetoresistive) the maximum resistance of which is not lower than that of the EL element and capacitive element 300. A device such as a mechanical light chopper 1000 with synchronous motor 1010, rotary slotted discs 1020, 1030, and stationary discs 1040, 1050 for separating a portion of each cycle of the luminescent output from the remainder and in synchronization with the A.C. voltage may be included. Output L 2  is a decreasing function of input energy and is greater for a negative excursion of VA (Fig. 3, not shown) producing variable intensity cycles (Fig. 2b, not shown), the lower intensity pulses (Fig. 2c, not shown) being separated for maximum sensitivity. Bypass capacitor 300 may be of an A.C. impedance lower than element 200 and EL element 100 and the maximum value of RP is of the same order as, or higher than RE for optimum operation. The relative angular width of the chopper discs may be varied to adjust the chopping width. Synchronism is ensured by auxiliary light source 100, PbS photo-electric converter 1200, frequency selecting amplifier 1300 and variable phase shifter 1400. Gamma value, output brightness and sensitivity may be controlled by making the D.C. bias Vb adjustable, varying the chopping width, the timing phase (e.g. by phase shifter 400) and the polarity of the bias voltage. Synchronization may also be achieved by using a pulse or signal voltage from the A.C. source to drive motor 1010 after frequency multiplying, dividing, shaping and amplifying. Input may be light, X-rays, elastic or magnetic. The EL layer may be green ZnS in an accumulatively polarizable and/or unidirectionally semi-conductive medium which is preferably liquid but may be solid (e.g. tricresylic phosphate), be applied between tin oxide coated glass and then PC element 200 may be transversely conductive sintered CdS, CdSe, CdS:Se, the respective C and R values being 10<SP>3</SP> pF, 5 x 10<SP>6</SP> # and 5 x 10<SP>10</SP> # (maximum) paralleled with an oil filled capacitor CB of 8 ÁF. The EL layer dielectric is preferably 10<SP>7</SP> to 10<SP>10</SP> # cm resistivity (e.g. 10<SP>9</SP> # cm.) and with an ohmic characteristic. The EL material may be heated to 600 to 700 C. with boron silicic acid type frit and reflective semi-conductive metal oxide SnO 2 , TiO 2  or Sb 2 O 5  on glass, ceramics, Fe or Ni. In an accumulatively polarizable element, the frit contains Li or Li and Ti.
Patent GB-238788-A (GB)
Title: Improvements in drilling and the like machines
IPC: B23B47/18
Filed: 1925-02-19
Abstract: 238,788. Druce &. Co., Ltd., E. H., and Gray, J. H. Feb. 19, 1925. Drilling.-In drilling-machines having a sensitive feed, the hand feed may be changed to a power feed or viceversa through rotation of the operating lever about its own axis. The spindlesleeve a has a rack engaged by a pinion b secured to a shaft through which passes the lever c for hand feed. A power feed may be derived from the shaft p, rotated directlv or indirectly from the machine pulleyspindle, and a worm drive o, h, the wheel h being attached to a sleeve g loose on the shaft and having clutch teeth adapted to engage teeth on a sleeve f splined to the shaft and moved into and out of engagement bv rotation of a cam e on the lever c. The clutch teeth have an inclined angle of 90‹ to permit easy disengagement which is effected by a spring i. The lever c is rotatably supported by ball-bearings j in a casing k attached to the shaft d, and the cam e engages' the sleeve f through an anti-friction bearing comprising a set of balls n or a single ball or roller. The spindle is returned by a spring q of known form, and the spindle-head is balanced bv a weight concealed within a column. An automatic stop for the power feed is provided by a projection on a disc s, angularly adjustable, in the fixed casing t and locked by a set-screw x, which engages a cam v on the lever o to rotate it on its axis.
Patent GB-948332-A (GB)
Title: Improvements in or relating to liquid pumping systems
Filed: 1959-02-10
Abstract: 948,332. Reciprocating pumps. RICHARD SUTCLIFFE Ltd., and L. BAINES. May 9, 1960 [Feb. 10, 1959], No. 4655/59. Heading F1A. Motor pistons 14, 16 are secured to a pump piston 15 by a crosshead 17. The annular areas of pistons 14, 16 are connected to the output of a pump 1 and the full areas to the pump 1 via a reversing valve 6 controlled by a pilot valve 7. The piston 15 draws liquid from a reservoir 23 and delivers it to an outlet 26 the annular and full area cylinder spaces being inter-connected by the valve 24 to give constant output on each stroke.
Patent GB-1120633-A (GB)
Title: Improvements in or relating to electrical connectors
Inventor: WRIGHT SYDNEY EDWARD
IPC: H01R9/24
Filed: 1965-02-03
Abstract: 1,120,633. Terminals; terminal blocks. PLESSEY-UK Ltd. 1 Feb., 1966 [3 Feb., 1965], No. 4679/65. Heading H2E. An electrical terminal block comprises a body 2 of a glass-filled nylon material which movably supports solder tags. The body may be mounted on a rail 4 along with other similar bodies. The solder tags are double-ended, the two ends 3A and 3B being mutually perpendicular, and the tags being arranged to slide in a slot on the upper surface of the body to move the ends 3B of the tags into engagement with terminal pins 7 mounted perpendicularly to a component board 6. The tags may have a thin coating of gold and a permanently soldered connection may be made to ends 3A, e.g. from a wiring harness, whereas the connection to ends 3B is between two robust members and consequently may be soldered and unsoldered many times.