baber/WOPTO huggingface dataset:
Patent GB-977399-A (GB)
Title: Electrophotographic material
IPC: G03G5/07
Filed: 1961-09-11
Abstract: 977,399. Electrophotographic materials. KALLE A.G. Sept. 11, 1961 [Sept. 17, 1960], No. 32460/61. Heading H1K. An electrophotographic material consists of an electrically conducting support with a coating containing as the photoconductive material a condensation product of an aldehyde and a substituted or unsubstituted aromatic amine. Suggested aldehydes are: formaldehyde, acetaldehyde, aorolein, propionaldehyde, crotonaldehyde, benzaldehyde, naphthaldehyde, terephthaldehyde, and furfural. Aromatic amines suggested are: aniline, fluoraniline, 4- bromoaniline, 4 - chloroaniline, toluidine, naphthylamine, and low alkyl N-substituted naphthylamines. Brief details are given of the preparations of specific condensation products, these include those of formaldehyde with aniline, 4 - fluoroaniline, 4 - bromo aniline, 4- chloroaniline, N - ethylaniline, N - propyl aniline, N - butyl aniline, # - naphthylamine, α - N - ethyl naphthylamine, N - methyl - 1,3- toluidine, and N - ethyl - 1,4 - toluidine; those of acetaldehyde with α-naphthylamine and otoluidine; those of crotonaldehyde with aniline, α - naphthylamine, o - toluidine, and N - ethylaniline; and those of furfural with aniline and N-ethyl aniline. Mixed condensates may be formed by reacting together mixtures of amines and mixtures of aldehydes. These condensation products may be dissolved or dispersed in suitable liquids and cast, brushed or sprayed on to the conducting supports which may be of commonly used materials such as metal foils, cellulose products or synthetic plastics (specific examples of these classes of materials being given in the Specification) or of glass. The photoconductive material may contain dyestuff sensitizers, the examples of which fall into the classes of the triaryl methanes, xanthenes (especially rhodamines), phthaleins, thiazines, acridines, quinolines, quinones and ketones, cyanines, and chlorophyll. The material may also contain actuators, which are organic compounds which can act as electron acceptors in molecular complexes, such as 1,2-dibromo maleic anhydride, chloranil, dichloroacetic acid, 1,2-benzanthraquinone, 2:4:7 - trinitro fluorenone, 1: 3: 5- trinitrobenzene, tetrachlorophthalic anhydride, hexa bromonaphthalic anhydride, and tetracyanoethylene. The coating may contain other additives such as plasticizers, resins, e.g. a ketone resin, and pigments, e.g. TiO 2 . Details are given of the use and processing of plates containing photoconductive materials of the present invention. Specifications 266,358, 274,501, German Specifications 305,026, 401,726, and 613,264 are referred to. Reference has been directed by the Comptroller to Specification 944,555.
Patent GB-882395-A (GB)
Title: Improvements in or relating to sewing machines
Inventor: GREISMAN SAMUEL
IPC: D05B13/00
Filed: 1957-10-18
Abstract: 882,395. Sewing machines. COMTEX Ltd. Oct. 20, 1958 [Oct. 18, 1957], No. 32643/57. Class 112 [Also in Group VIII] A sewing machine for closing the mouths of filled bags is provided with a device for severing the thread and, if present, a reinforcing tape, the device comprising a pair of cutting blades which are pivoted together and are normally biased to the open position, one blade being fixed to the machine and the other blade being provided with a handle, upward movement of which serves to close the blades. A blade 4, carried by a block 3 narrower in width than the blade, is secured in a vertical position, by screws 8 to the machine 2 at the outlet end of the latter. A movable blade 11, pivoted at 14 to the upper end of blade 4, has a cranked portion 15 which passes through a horizontal groove 25 in block 3 and is fixed to the inner end of a handle 17. A tension spring 22, connected between blade 4 and handle 17, biases portion 15 against the lower edge of groove 25 to hold the blades open. Upward pressure on handle 17 moves portion 15 against the upper edge of groove 25 and closes the blades. Specification 648,414 and 844,443 are referred to.
Patent GB-448856-A (GB)
Title: Means for blocking ionic valves on a back-arcing or overload
IPC: H02H7/127
Filed: 1934-11-13
Abstract: 448,856. Converting. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET, Vasteras. Sweden. Nov. 13, 1934, Nos. 32667 and 32668. Convention dates, Nov. 16, 1933 and Oct. 22, 1934. [Class 38 (ii)] Relates to a polyphase converting arrangement in which the valves are blocked in the event of ba.ck ignition or overload by a negative bias applied to the control grids and consists in obtaining the bias by the breakdown of a practically smooth D.C. voltage obtained by polyphase rectification of the A.C. terminal voltage of the arrangement. In one form a transformer connected across the D.C. circuit of a rectifier has its secondary connected between the grids and the casing of the rectifier so that reduction of D.C. voltage on occurrence of overload or back ignition will cause a negative impulse to be applied to the grids. In a modification a condenser which may be shunted by a resistance is connected in series with the transformer. If grid control is employed a relay operated by the impulse short circuits the secondary of the grid transformer. In the form shown in Fig. 3, a valve 16, normally non-conductive due to the grid bias applied from a resistance 15, becomes conductive on failure of the D.C. circuit voltage and connects a charged condenser 9 to the main grids 3 to effect blocking. In a further modification shown in Fig. 4, a condenser 24 is charged from the A.C. circuit through auxiliary transformers 17 and rectifiers 18. On the failure of the A.C. circuit voltage the condenser commences to discharge through a resistance 25 to apply a negative bias to the grids 3. A relay 27 also operates to connect the condenser 24 directly between the grids and cathodes. A condenser 30 is connected in the relay circuit to delay reoperation. of the relay. In the form shown in Fig. 5 for a polyphase arrangement having an interphase transformer the condenser 37 is charged from two separate sets of rectifiers 31, 32. Specifications 374,012 and 405,932 are referred to.
Patent GB-644571-A (GB)
Title: Telecommunication exchange
IPC: H04Q3/52
Filed: 1946-11-04
Abstract: 644,571. Electric control systems. STANDARD TELEPHONES & CABLES, Ltd. Nov. 4, 1946, No. 32708. Convention date, Nov. 14, 1945. [Class 38 (iv)] [Also in Groups XXXIX, XL (a), XL (b), and XL (c)] In an automatic telephone system (see Group XXXIX) in which it is desired to select pulses derived from any one of a plurality of electrodes 49-68 of a cathode-ray distributer 39 (see Group XL (a)), a local oscillator of natural frequency slightly different from the scanning frequency (10 kc.) of the distributer is caused to lock in synchronism with the wanted incoming pulses. When a D.C. loop is closed through a calling subscriber's equipment 21, secondary electrons, emitted when the beam falls on the electrode 53, are collected by the anode 69 to produce a pulse in wire 71 which after inversion and clipping off the modulation is applied to the grid of valve 88. A local oscillator 198 after frequency dividing produces pulses of frequency slightly less than 10 kc. which are applied through amplifier 95 to the cathode of valve 88. When the two pulses applied to 88 are in phase, 88 conducts to produce pulses 100 which are integrated and applied to open a gate 203, 205 to admit a current from a master 200 kc. oscillator to the local oscillator which is thus locked to synchronize the two pulses applied to valve 88. The pulses 100 are also integrated and applied to cut off valve 105, thereby increasing the bias and consequent amplification of valve 95. The pulses thus applied to the cathode of 88 are increased and the valve 88 runs into grid current, thereby restricting the amplitude of pulses on wire 27 so as not to cause the lock-in of the local oscillators of other similar circuits connected to wire 27. The pulses 100 are also applied to the gate 108 to pass modulated pulses received over wire 28 to a utilization circuit over wire 33. In a modification, Fig. 12 (not shown), the 10 kc. pulses 100 are used directly to lock-in the 200 kc. local oscillator and in a further modification, Fig. 6 (not shown), the pulses 100 lock-in directly a 10 kc. local oscillator.
Patent GB-420722-A (GB)
Title: Improvements in pillows and cushions
IPC: A47G9/10
Filed: 1933-11-24
Abstract: 420,722. Cushions and pillows. SINCLAIR, A. W., 33, Moray Place, Strathbungo, Glasgow. Nov. 24, 1933, No. 32873. [Class 52 (iv)] A cushion or pillow of elliptical cross section is sub-divided into longitudinally extending cells some of which are triangular in cross-section. The external walls of the cells are substantially equal in area.
Patent GB-1434535-A (GB)
Title: Polymer latices
IPC: C09D5/02
Filed: 1972-07-14
Abstract: 1434535 Polymer latices BARLOW CHEMICAL CO Ltd 12 July 1973 [14 July 1972] 33008/72 Heading C3P The adhesion properties of a polymer latex containing a protective colloid are improved by reacting the protective colloid, before, during or after the preparation of the polymer latex, with an alkyleneimine to form amino groups in the protective colloid. The polymer in the latex is preferably free of carboxylic acid or carboxylic acid salt groups. In examples the latex polymer is (1) methyl methacrylate/nbutyl acrylate copolymer and (2) a copolymer of vinyl acetate and vinyl ester of mixed tertiary C 10  carboxylic acids; the protective colloid is (1) polymethacrylic acid and (2) vinyl acetate/acrylic acid copolymer; and in both cases the alkyleneimine reactant (used after formation of the polymer latex) is ethyleneimine. The polymer latex is useful as a paint or adhesive, and for coating paper and textiles. Optional components which may be incorporated in the latex include pigments, extenders, thickeners, dispersing agents, wetting agents, solvents and plasticizers, e.g. titanium dioxide, talc, carboxymethyl cellulose and tetrasodium pyrophosphate.
Patent GB-384075-A (GB)
Title: A new or improved rowing machine or rowing exercise apparatus
IPC: A63B69/06
Filed: 1931-11-28
Abstract: 384,075. Rowing- apparatus. TERRY, A. V., Oakenshaw, Headless Cross, Redditch, Worcestershire, and ROWLEY, T. A., Avonbury House, Bidford-on-Avon. Nov. 28, 1931, No. 33010. [Class 132 (i).] Apparatus for performing rowing exercises consists of an open rectangular frame a of metallic tubular construction, a tubular footrest c integrally connected to the frame, a seat o slidably supported on rollers q or runners upon the side members of the frame, helical springs k connecting the seat to the forward end bar a<2> of the frame, and a pair of handgrips mounted on the forward part of the frame and connected to the rear end bar a<1> by helical springs d. The springs are detachable and interchangeable in different strengths, being secured to the ends bars by clips e, l and detachably hooked to the seat and to a wire connector f attached to the hand-grips by cords g passing over pulleys h. The side bars may be made in two parts connected by a liner and secured by screws passing through the supporting feet b.
Patent GB-355591-A (GB)
Title: Improved dust cart or vehicle
IPC: B60P1/10
Filed: 1930-11-04
Abstract: 355,591. Tipping scavengers' vehicles. DUNCAN, A., 39, Kirkbrae, Galashiels, Selkirk. Nov. 4, 1930, No. 33062. [Class 108 (i).] A dust-cart is mounted to tip at C on a frame A arranged on a low-loading level. The rear or only wheels E are of comparatively large size and are preferably mounted in brackets F secured to the frame A. The usual doors G, H and tipping screw D are provided.
Patent GB-1361519-A (GB)
Title: Scrubbing of gases containing ticl4
IPC: B01D47/06
Filed: 1972-07-14
Abstract: 1361519 Removing HCI from gases E I DU PONT DE NEMOURS & CO 14 July 1972 [30 Sept 1971] 33090/72 Heading C1A An anhydrous gas containing HCl and TiCl 4  is contacted with an initial quantity of aqueous liquid so as to evaporate into the gas an amount of water insufficient to saturate the gas but greater than that stoichiometrically required to react with the TiCl 4 , and is then contacted with additional aqueous liquid in an amount at least sufficient to saturate the gas with water and absorb the HCl. The gas is preferably tail gas from the chloride TiO 2  process containing 2-20% HCl and 0À01-0À5% TiCl 4 . After the second step, the gas and liquid may be separated in a cyclone and the gas passed to a spray tower for further scrubbing with water. The acid solution may be recycled as aqueous liquid.
Patent GB-1534316-A (GB)
Title: Weaving triaxial fabricks heald shogging
IPC: D03C13/00
Filed: 1976-08-10
Abstract: 1534316 Triaxial fabric looms BARBER COLMAN CO 10 Aug 1976 [11 Aug 1975 33197/76 Heading DIE A loom for weaving triaxial fabrics has shouldered, eyed, half healds 21 arranged in banks A, B and A', B', the healds running in two part guides (34a, 34b) and 45 so that they may be both shed and shogged weftwise. In their retracted positions shown in Fig. 2 the healds engage in guides 45 only which are cam-operated to shog the healds weftwise. Whilst they are so shogged shedding means 31 act on the healds to push them out of the shogging guides 45 and into the guides 34a, 34b. Whilst they are so shed the shogging guides return to their initial position so that, on shed change, the healds leave the guides 34a, 34b and enter the guides 45 for the next shogging.
Patent GB-618657-A (GB)
Title: Improvements in and relating to manipulators for specimens in evacuated envelopes
IPC: G02B21/32
Filed: 1946-11-08
Abstract: 618,657. Universal joints. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 8, 1946, No. 33300. Convention date, Nov. 10, 1945. [Class 65 (ii)] [Also in Group XL (a)] A manipulator for controlling the position of an article in an evacuated envelope comprises a pair of coaxial shafts, the first of which supports a frame member adjustable along and adapted to be rotated by the shaft about a first axis, article supporting means including a shaft supported by the frame member and adapted to be rotated by the second shaft about an axis inclined at an angle to the first axis, and means for varying the position of the axis of the pair of shafts. The Figure shows a cross section of a manipulator according to the invention for use in electron diffraction apparatus. The specimen carrier 4 is fixed to thesleeve 47 which is adjustably mounted on shaft 45. This shaft is journalled in the bearing 44 carried by the frame member 43 which is fixed to the hollow shaft 20. Inside the shaft 20 is another shaft 19 carrying a socketed gear 53 which is coupled by the ball chain 54 to the gear 46 driving the shaft 45. Thus by rotating shafts 19, 20 the specimen may be rotated about two axes. At its upper end the shaft 20 has a flange 22 supported in a recess in the mounting plate 23. A rubber gasket 24 and a retaining ring 25 screwed to 23 provide a gas-tight seal so that the shaft 20 can be rotated by the handle 42 outside the diffraction tube. The shaft 19 has a similar seal and may be rotated by means of the knob 41. The mounting plate 23 is supported from a plate 13 by three screws, of which one 28 is shown, and a compressed spring 35. Thus by adjusting the screws 28 &c. the axis of rotation of the shafts 19, 20 can be varied and the position of the specimen can be altered. The plate 13 is supported on a ball race mounted on the internally threaded cylinder 12 which screws on to the cylindrical casing 10. By rotating 12 and so screwing or unscrewing it on 10 the specimen can,be moved vertically.
Patent GB-366156-A (GB)
Title: Improvements in fire grates
IPC: F24B1/193
Filed: 1930-11-06
Abstract: 366,156. Open fireplaces. CHEYNE, W., Prestonville, Waikiwi, near Invercargill, Southland, New Zealand. Nov. 6, 1930, No. 33435. Convention date, Jan. 14. [Class 126.] A fireplace of the type in which a quarter-spherical hood 5 is pivoted at each side at the level of a circular dishshaped grate 4 so as to be movable to cut off the fire from, o r expose it to, the room, comprises a frame consisting of an upper arch-shaped portion 1 and a lower semicircular part 1b on which the grate is supported, the hood being pivoted in lugs 4A on the grate and moving in the semicircular arch of the frame. The hood shown can be adjusted by means of a rack 5B and pawl 5c to vary the opening beneath the rear edge through which the gases pass to the flue. The grate 4 rests on ledges 1A and 1c respectively on the ashpan front 7 and the part 1b of the frame. A curved metal plate 8 in the rear part of the grate acts as a heat-reflector, and a pipe coil 9 arranged in the grate serves to heat water.
Patent GB-1041079-A (GB)
Title: Method of erecting buildings
Inventor: ALDER FELIX
IPC: E04B1/35
Filed: 1963-08-23
Abstract: 1,041,079. Erecting buildings. RICHARD COSTAIN Ltd. Aug. 24, 1964 [Aug. 23, 1963], No. 33464/63. Heading E1A. A building is erected by casting a roof 8 at ground level with storey height column sections 5 and raising it in steps by operating jacks 4 in the basement in groups and inserting blocks 9 as is necessary between the jacks and the column sections. When raised to one storey height the jacks are released in groups and the blocks replaced by sections of columns. A floor 7 is then cast at ground level to join the two sets of column sections together and the whole again raised in steps the height of one storey. Further storeys are added similarly. Each floor may be reinforced by steel or reinforced concrete beams round the edges.
Patent GB-902469-A (GB)
Title: An improved apparatus for folding a blank of cardboard or like material
IPC: B31B50/54
Filed: 1959-10-02
Abstract: 902,469. Folding edges of non-metallic sheets. BOBST & FILS S.A., J. Oct. 2, 1959 [Nov. 6, 1958], No. 33488/59. Class 42 (1). [Also in Group XVII] The corner flap 3 of a cardboard carton blank 1 travelling in the direction of the arrow 8 over a table 13 is blown upwardly about a crease 6 by an air jet from a nozzle 9, so that a further flap 4 hinged to the flap 3 by a crease 7 abuts a deflector plate 11, whereupon the flap 4 is folded downwardly, pressing means 12 being provided adjacent the deflector plate, the flap 3 being thus folded down on to the upper surface of the blank 1 and the flap 4 folded on to the flap 3. The pressing means comprises a roller under which the flap 3 passes, and the deflector plate 11 curves downwardly to the end 11<SP>1</SP> which lies closely parallel to the table. An elastic member may assist the air jet.
Patent GB-1443514-A (GB)
Title: Wheel slip or spin control systems
IPC: B60T8/60
Filed: 1972-07-18
Abstract: 1443514 Aritiskid or aritispin control systems GIRLING Ltd 9 July 1973 [18 July 1972 (2)] 33514/72 and 33515/72 Heading F2F A system for controlling slip or spin of a wheel of a vehicle such as a rail vehicle comprises means operable to produce an electrical signal representing the rotational speed of a wheel, a differentiating circuit producing an output dependent on the rate of change of said signal, control means sensitive to the output to control the application of torque to the wheel, said control means acting to reduce the torque applied when the rate of change of said signal exceeds a predetermined level, and means for clamping the input of the differentiating circuit when the wheel speed is below a predetermined value so as to render the control means inoperative to reduce the torque applied to such condition. A wheel-driven alternator 11 has its output rectified and applied to the differentiating circuit 24 which is clamped by a resistance chain connected across the alternator output, a diode 29 being non-conductive until the wheel speed is below the predetermined value. A nickel-cadmium battery 38 is charged by the alternator and is disconnected from the system, when the latter is inoperative, by means of a relay having a winding 37 and contact 37a. When deceleration reaches a predetermined level denoting imminent wheel slip control means 25 energizes a winding 26 to release the brakes and when the wheel ceases to rotate alternator 12 no longer produces an output so that contact 37a opens to prevent discharge of battery 38. To control wheel spin the control circuit 25 operates means for removing power drive from the wheel.
Patent GB-194414-A (GB)
Title: Improvements in brakes suitable for motor vehicles
IPC: F16D49/00
Filed: 1921-12-13
Abstract: 194,414. Rooke, A. E. Dec. 13, 1921. Brakes, arrangement and disposition of.-In an electromagnetic brake for the front wheels of road vehicles, the brake block or ring and the member carrying the winding or windings are secured one to the wheel or its hub and the other to the stub axle. As shown in Fig. 1, a brake block 11 secured to the wheel 10 by a spring 12 is adapted to engage an annular member 3 secured to the stub axle and having a magnetizing winding 7. Ir. another form, the member 3 is secured to the wheel hub and the block to an arm on the stub axle. The block engages the inner periphery of the members in this case. As shown in Fig. 5, the member 2 secured to the stub axle 1 has a number of windings 21 one or more of which may be energized to vary the braking action. The disc 24 which engages the member 2 is mounted by bolts 15 sliding against the action of springs 18 in the cover plate 17 secured to the wheel. The disc 24 has a number of radial strips 26 of frictional material. The member 2 may have an annular groove formed in its face and the engaing face of the member 24 be correspondingly shaped. The brake switch may operate in canjunction with the hand or foot brake.
Patent GB-1105722-A (GB)
Title: Improvements in or relating to fuel injection systems
IPC: F02M41/14
Filed: 1965-08-05
Abstract: 1,105,722. Centrifugal governors. INTERNATIONAL HARVESTER CO. Aug. 5, 1965 [Nov. 18, 1964], No. 33530/65. Heading G3B. [Also in Division F1] In an I. C. engine fuel injection system (see Division F1), in which the maximum duration of fuel injection is determined by the abutment of a screw 52, Fig. 1, and a stop 50, the movement of the screw 52 towards and away from the stop 90 is determined in accordance with variations in engine speed and fuel temperature. With increasing speed roller flyweights 42 of the governor move outwardly causing sleeve 76 to move rightwardly. This motion is transmitted through roller 36 and pivoted arm 34 until the head of screw 52 engages a spring-loaded plunger 50 at the predetermined load position. Further movement may continue to an overload position determined by the setting of a stop screw 48. A bi-metallic spring 56, immersed in the fuel, is anchored at its outer end to arm 30 and at its inner end to screw 52. An increase in fuel temperature causes to the coil to rotate screw 52 so as to reduce gap "G" and vice versa thus controlling the maximum period of fuel injection by limiting the movement of sleeve 38. Movement of a pivoted control arm (26), Fig. 2 (not shown) acts through shaft 24, a cam (not shown) a pivoted control arm 66 and a tensioned yoke connection (not shown) between arm 66 and spring seat 68 to adjust the force applied by spring 40 to the governor arm 28. The timing of fuel injection may be controlled by an automatic device 74 (not described) which acts through a timing plate 70 on a stud 72 fixed to the governor sleeve 38. In a modification bolt member 52, Fig. 3 may be carried by fixed part 48 and operatively engages part 30.