baber/WOPTO huggingface dataset:
Patent GB-703152-A (GB)
Title: Improvements in or relating to apparatus for stacking sheet material
IPC: B65H29/34
Filed: 1949-06-08
Abstract: 703,152. Sheet-delivery apparatus. WALMSLEYS (BURY), Ltd., and TEMPERLEY, J. May 30, 1950 [June 8, 1949], No. 15217/49. Class 100 (1) An apparatus for laying sheets one on top of the other comprises a support and a plurality of axially displaceable spindles arranged in two independent sets and adapted to receive a sheet immediately above said support and aligned with it in plan, and thereafter to retract axially causing the sheet to fall on to the support, each set of spindles being mounted on one of two carriages located on either side of the support and displaceable on rails so as to be withdrawable in opposite directions from both sides of the support. Sheets such as board sheets in a wet condition are passed from a making-up roll 21 by a belt conveyer 20 to spindles 16, each sheet being thereby fed in turn into position above a stack of sheets on a table 11, whereupon the spindles 16 are axially withdrawn to allow the sheet to fall on to the stack. To maintain the level of the top of the stack, the table is vertically adjustable by hydraulic rams 12, guides 13 at each comer of the table sliding in brackets 14. On either side of the table is a carriage, and each carriage supports in bearings along its upper edges a plurality of the spindles 16, the conical ends of which almost meet over the table. The spindles are rotated by electric motors on the carriages through worm gearing. In between each sheet, a piece of felt, sail-cloth or wire mesh may be unwound from a roll 22 at the opposite end of the table to the conveyer 20 and deposited on the last sheet by moving the roll 22 along rails 26, as by a handle on the roll shaft 24 and wheels 25. The carriages are reciprocated by synchronized reversible motor drives, stops being provided to act as limit switches.
Patent GB-144323-A (GB)
Title: Improvements in and connected with internal combustion engines for aircraft
IPC: F02D9/00
Filed: 1920-06-05
Abstract: 144,323. Daimler-Motoren-Ges. Oct. 28, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Regulating.-Engines for aircraft are constructed of suitable dimensions and strength for the power required to be developed at a predetermined altitude, and the air supply is throttled when working at lower altitudes.
Patent GB-671814-A (GB)
Title: Improvements in or relating to water-soluble dyestuffs derived from sulphuretted tetracene (naphthacene)
IPC: C09B3/00
Filed: 1947-06-10
Abstract: Dyes are made from an unvattable green, pigment of the formula <FORM:0671814/IV (c)/1> (obtainable by the action of sulphur or sulphur chloride on naphthacene or by the action of sulphur on a halogenated naphthacene) by an oxidizing salification performed by any of the general methods known for converting a leucobase into salts.  The oxidizing salification may be effected by (1) an oxidizing agent in an acid medium; (2) an oxidizing acid in concentrated solution; (3) a salt of a noble metal; (4) a holoquinoid salt of an organic base; (5) an ester of a mineral acid, or (6) a halogen.  The products are used for dyeing, printing, or foularding fabrics such as cotton, natural or regenerated cellulose, or natural silk, and may be split on the fibre to give unvattable green pigments by hydrolysing or reducing agents.  The products appear to consist of a positively-charged sulphuretted naphthacene radical joined by electrovalent links to one anion (red salts) or two anions (yellow salts).  In examples, sulphuretted naphthacene is reacted with (1) lead dioxide (or manganese dioxide or hydrogen peroxide) and 45 per cent sulphuric acid, giving a yellow sulphate which forms on heating an insoluble brown-red sulphate; (2) concentrated sulphuric acid, to give the same sulphates as in (1); (3) concentrated nitric acid, alone or mixed with glacial acetic acid; (4) chlorine or bromine in trichlorbenzene; (5) air and trichloracetic acid to give a yellow trichloracetate; (6) air and hydrochloric acid, preferably with sodium nitrite, to give a red monochloride; (7) lead dioxide (or manganese, dioxide, hydrogen peroxide, or air in presence of sodium nitrite), and acetic acid to give a monoacetate; (8) methyl sulphate in trichlorbenzene; (9) the yellow sulphate of (1) above to give with the sulphuretted tetracene the red monosulphate; (10) silver sulphate, to give the red monosulphate; (11) the dinitrate of dimethyl-p-phenylene diamine.  Further examples describe the dyeing of cotton, viscose, or natural silk with the product of (4) or (5) above, followed by treatment of the dyed material with sodium hydrosulphite, or with sodium carbonate, with or without soap. Reference is also made to the use of perchloric and formic acids.
Patent GB-900339-A (GB)
Title: Improvements in and relating to automatic feeders for pigs
IPC: A01K5/02
Filed: 1961-04-28
Abstract: 900,339. Feeding appliances for animals. CHAMBRIER, A. April 28, 1961 [May 17, 1960; Oct. 11, 1960; Dec. 27, 1960], No. 15415/61. Class 5(2). In pig feeding apparatus the outlet 5 of a hopper 2 is controlled by a movable flap 6 held in the closed position by a lock 8 carried by the armature of an electromagnet 10 actuated at certain times under the control of a clock 11 to withdraw the lock and pivot the flap 6 downwardly so that foodstuff is discharged from the hopper on to a balance plate 12 which pivots under the weight of a predetermined quantity of food against the action of weights 14 and 15 to deliver the foodstuff to a trough 22. A flexible link 24 connects the plate 12 and flap 6 so that the flap is urged towards the closed position when the balance plate pivots downwardly. A pivoting shutter 25 controlled by a lever 26 situated outside the hopper allows the size of the outlet 5 to be varied. The weight 15 is slidably mounted on a lever 16 connected by a link 19 to the plate 12 so that the weight of foodstuff under which the plate 12 pivots may be varied.
Patent GB-931377-A (GB)
Title: Improvements in the production of phenol
Inventor: VOL-EPSTEIN ALEXANDER BORISOVI
IPC: C07C39/04
Filed: 1961-04-28
Abstract: Phenol, ethyl-benzene and cumene are produced by treating the resinous products remaining as waste in the production of phenol by the cumene method by removing the sodium salts and the resin under treatment, e.g. by distilling in vacuo or by washing with dilute sulphuric acid and subsequently catalytically hydrogenating the resin, e.g. using as catalyst one or more substances in the group platinum, nickel, cobalt, molybdenum, tungsten, their oxides and sulphides, or the mixed catalyst tungsten sulphide, nickel sulphide and aluminium oxide, the hydrogenate obtained being fractionally distilled.  The catalytic hydrogenation may be carried out in a stream system at a temperature of 200-400 DEG C., a pressure of 1-150 atmospheres and at a volumetric speed of supply of 0.5-3.0 resin volume for each volume of catalyst and a hydrogen supply of 400-1000 litres per 1 litre of resin.
Patent GB-559825-A (GB)
Title: Improvements connected with fluorescent tubular discharge lamp fittings
IPC: F21V17/00
Filed: 1942-11-03
Abstract: 559,825. Tubular discharge lamp fittings. REVO ELECTRIC CO., Ltd., and REEVES, F H. Nov. 3, 1942, No. 15446. [Classes 75 (ii) and 75 (iv)] The inverted trough reflector casing a of a fluorescent tubular discharge lamp fitting is formed along its upper or lower longitudinal edges with inwardly or outwardly turned beads or channels a<SP>1</SP> 'to accommodate the flexible leads or wiring b leading to the auxiliary control gear which is located at the ends of the casing within cover plates c.
Patent GB-1149315-A (GB)
Title: Improvements in or relating to conveyors
Inventor: GUNNER CHARLES COLIN
IPC: B65G13/00
Filed: 1967-04-04
Abstract: 1,149,315. Roller conveyers. LAMSON ENG CO. Ltd. 2 April, 1968 [4 April, 1967], No. 15449/67. Heading B8A. Conveyer rollers 3 are directly driven by a V-belt 5 but conveyer rollers 6 are driven by wheels 7 intermediate the belt and the rollers 6. The wheels 7 have a rubber coating 8. The belt, driven by a roller 10 and made up of leather strips hinged together, also engages idler and take-up rollers 9, 10. In Fig. 1 (not shown), the conveyer is of curved form. When the conveyer is straight, the rollers 3, 6 are cylindrical rather than tapered.
Patent GB-1191801-A (GB)
Title: Improved Colour Photographic Material
Inventor: OTTO RIGOBERT
IPC: G03C7/38
Filed: 1968-04-01
Abstract: 1,191,801. Sulphonic acids. AGFA-GEVAERT A.G. 1 April, 1968 [30 March, 1967], No. 15503/68. Heading C2C. [Also in Divisions C4 and G2] Butanesultone is added to p-nitrophenol in boiling aqueous NaOH, and the reaction mixture treated with NaCl to yield 4-nitrophenyl-#- sulphobutyl ether which is then hydrogenated to 4 - aminophenyl - # - sulphobutyl ether.
Patent GB-1305672-A (GB)
IPC: B31F1/28
Filed: 1971-05-18
Abstract: 1305672 Noiseless paperboard guide HARRISINTERTYPE CORP 18 May 1971 [10 Sept 1970] 15547/71 Heading B5N The noise generated at the bridge 10 between a single facer and a double facer machine at which the single-faced paperboard 20 is guided and tensioned before being passed to the double facer is reduced by contacting the fluted side with spaced idler rollers 21, 26 and the liner side with a curved surface 24 between the rollers. The bridge is suitably fed by a conveyer 16 on which the single faced paperboard may accumulate in loops 21 and may comprise means for moving the position of the downstream roller 26 to change the amount of frictional contact with the curved surface 24 and thereby vary the tension in the single faced paperboard. In an embodiment the curved surface is a cylinder and the tension is applied by a weighted curtain (52, not shown) under which the single faced paperboard passes.
Patent GB-1009351-A (GB)
Title: Pulse delay circuits
IPC: H03K3/284
Filed: 1962-04-24
Abstract: 1,009,351. Transistor timing circuits. RADIO CORPORATION OF AMERICA. April 24, 1962 [May 10, 1961], No. 15611/62. Heading H3T. A pulse delay circuit comprises a signal input terminal and a differential amplifier having two inputs and an output characterized in that a first input of the amplifier is coupled by means of a voltage divider to the signal input terminal so as to apply a proportion of the input signal to the first input of the amplifier to act as a reference signal and the second input of the amplifier is coupled to the signal input terminal by a resistor capacitor integrator, the arrangement being such that the differential amplifier provides an output when the integrated input signal equals the reference signal. As shown in Fig. 1, part of the input signal at input terminal 18 is applied to base 22 of transistor Q2, forming part of the differential amplifier Q1, Q2, by means of potentiometer 14, 16 and the second input 22 of the amplifier is connected via integrating circuit RC to input terminal 18. When the integrated input signal voltage across C equals the reference signal voltage obtained by the current of Q2 flowing through resistor 10, transistor Q1 conducts and a negative voltage is obtained at output terminal 24 which causes the normally cut-off transistor Q3 to conduct and a positive pulse to be generated at its output 28. At the trailing edge of the input pulse at 18, Q1, Q2 are cut off with the result that Q3 is cut off and the end of the output pulse at 28 coincides with the end of the input pulse at 18. Capacitor C then discharges through diode D1 and diode D2 prevents the voltage on capacitor C falling below earth potential. The circuit thus delays the leading edge of the input pulse by a time determined by R.C. In the arrangement of Fig. 3, the circuit of Fig. 1, 32, is connected to a bi-stable trigger circuit 30, having a set input S, connected to a trigger pulse input 34, and output terminals 36, 38. When the input trigger pulse, Fig. 4 (a), is applied to input S, a positive pulse is delivered to circuit 32 and is delayed by this circuit before being passed to reset terminal R of the bi-stable trigger circuit 30 to terminate the positive pulse. Thus, in response to an input trigger pulse applied to terminal 34 there is produced an output pulse at 36 having a duration determined by the time constant of the integrator.
Patent GB-439113-A (GB)
Title: Improvements in or relating to display cabinets
IPC: G09F11/29
Filed: 1934-05-25
Abstract: 439,113. Moving signs. HAYWARD, C., 80, St. James' Avenue, Hampton Hill, Middlesex, LUNGHI, P., 70, Kings Road, Camden Road, London, and LONDON PASSENGER TRANSPORT BOARD, 55, Broadway, Westminster. May 25, 1934, No. 15618. [Class 3 (i)] In display cabinets wherein a flexible band is wound on and off two spools and passes behind a viewing aperture in a unitary frame in the front wall of the cabinet, its displayed portion being supported by a rigid backing member fixed in the sides of the cabinet, guides for the edges of the band 18 are formed by forwardly-directed longitudinal fillets 34 on the backing member 17 near its sides. The frame 12 is readily detachable as a unit from the cabinet 10 and from the member 17 to allow of ready insertion and removal of the band 18. The side members of the frame 12 overhang the edges 36 of the band and have each a narrow bead 35 which bears lightly on these edges. Guide rollers are provided near the ends of the member, and an index scale, chart, &c. is fitted along one edge of the viewing aperture. A lower storage compartment may be provided. The spools are driven by an electric motor reversible by a switch, and gearing is provided whereby the direction of rotation determines which spool is driven directly. The spool bearings have adjustable friction devices. Specification 141,126, [Class 3 (i)], is referred to.
Patent GB-581265-A (GB)
Title: Rotary pressure joint
IPC: F16L39/04
Filed: 1944-08-16
Abstract: 581,265. Pipe joints. MONROE, R. O. Aug. 16, 1944, No. 15646. [Class 99 (i)] A rotary joint for concentric pipes admitting steam to and exhausting condensate from a rotary steam-heated drum comprises a universal joint consisting of overlapping tubular members 30, 33 having spherical seating portions 24, 26 engaging under the action of a spring 26 corresponding seating rings 20, 22 in a housing 10. The steam supply tube 28 is connected to the member 33 and the condensate tube 44 is supported in the member 30 and sealed by a stuffing. box 46.
Patent GB-439038-A (GB)
Title: Improvements in or relating to liquid containers
IPC: B64D37/02
Filed: 1934-05-25
Abstract: 439,038. Tanks. DORNIER METALLBAUTEN GES., Friedrichshafen, Lake Constance, Germany. May 25, 1934, No. 15677. Convention date, June 19, 1933. [Class 69 (i)] [See also Group XXXIII] Metallic liquid containers, of the kind in which the walls thereof are made of light metal and are connected together by rivets, screws, bolts or folds, are rendered liquidtight by attaching porous fabric to the inner surfaces of the container walls and over the joints thereof by means of an adhesive liquidproofing medium and overlapping adjacent edges of the fabric on a subjacent or underlying piece of fabric or covering the joints of the fabric with metallic bars or strips rigidly secured to a wall of the container, such bars or strips and the securing means therefor being covered with porous fabric attached to the said bars or strips and the securing means therefor and to adjacent pieces of fabric by adhesive liquid proofing medium. Pieces b, c, Fig. 1, of porous fabric are caused to adhere to the walls a of a tank and over the joint d thereof, the edges e, f of the pieces b, c being covered by a metal bar g riveted to a wall; the bar g is covered by a piece h of fabric adherent to the bar and to the pieces b, c. In a modification, Fig. 3, the edges p, q of fabric lengths n, o are superposed on a piece r of fabric held in position by a metal bar s, the latter being covered by a further piece t of fabric adhering to the bar s and to the fabric lengths n, o. The tank may be used as a fuel container for aircraft and may form a float, stabilizing stub, or chamber in the wings or fuselage.
Patent GB-993798-A (GB)
Title: Power-driven screw-driving device, for example for fastening railway track sleeper screws
IPC: B61L1/20
Filed: 1962-04-25
Abstract: 993,798. Clutch control. R. LAEAN, and M. ANGELITTI. April 25, 1962 [May 3, 1961], No. 15704/62. Heading F2L. [Also in Division B3] A device for screwing up sleeper screws comprises a screwing head 2 supported on a hollow member 8 carried by a carriage 16, a transverse support 14 having a roller 15 and a motor 1 which rotatably drives a stub shaft 11 through an electromagnetic clutch 7, the shaft being connected to a second stub shaft 12 by a spring 13. The device is transported by handles 9, 10 and a control switch 21 is carried on a handle 9. Shaft 12 has a commutator 17 with segments, some of which are earthed, and brushes 18, 19 which are connected to relays 20<SP>2</SP>, 20<SP>3</SP>, and which are also connected to a battery 20<SP>1</SP>, when switch 21 is closed. In operation with motor 1 running, switch 21 is closed, current is supplied to relays 20<SP>2</SP>, 20<SP>3</SP>, which energize clutch 7, and the screw is driven. As the predetermined torque is reached commutator 17 ceases to rotate and one, or both, of the relays 20<SP>2</SP>, 20<SP>3</SP> is de-energized, according to the position of the commutator, thus disconnecting clutch 7.
Patent GB-562201-A (GB)
Title: Tubular apparatus for heating fluids
IPC: F28D7/06
Filed: 1942-11-06
Abstract: 562,201. Heating air and gases. HEAD, WRIGHTSON, & CO., Ltd., WRIGHTSON, SIR T. G., and FISHER, R. C. Nov. 6, 1942, No. 15724. [Class 64 (i)] Air, gas or other fluid is heated in U -shaped or sinuous tubes 2 extending from inlet and outlet headers 3, 8 over a baffle 5 around a furnace 1, the gases from which flow in a reverse direction through a narrow annular or rectangular flue between the baffle and an outer wall 6.
Patent GB-1432298-A (GB)
Title: Method of feeding of a rotary or linear inductive displacement  transducer and a device for carrying out the method
IPC: G01D5/20
Filed: 1974-04-09
Abstract: 1432298 Displacement transducers VYZKUMNY USTAV OBRABECICH STROJU A OBRABENI 9 April 1974 [9 April 1973] 15733/74 Heading G1N A transducer for measuring angular or linear displacement comprising two-phase rotor windings 6, 7 Fig. 1 and a single phase stator winding 8 has the rotor windings fed with triangular voltages in quadrature. The stator voltage is fed through a filter 10 to produce a constant amplitude sinusoidal voltage of the fundamental frequency whose phase is indicative of the angular position of the rotor. Reference has been directed by the Comptroller to Specification 1155334.
Patent GB-219956-A (GB)
Title: Improvements in letter-filing devices
IPC: B42F13/30
Filed: 1924-07-01
Abstract: 219,956. Christoph & Unmack Akt.- Ges., Abt. Kippordnerwerk. July 30, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Post files; fastenings.- Letters &c., are filed on tubular posts 1 mounted on a base piece 2, which is hinged to a foot plate 3 fixed to the file-cover or back, The ends of the posts are closed by a flexible yoke 7, which is formed so that one limb 6 bears against recesses 5 in the posts, while the ends 4 engage in the ends of the posts.
Patent GB-927685-A (GB)
Title: Improvements in or relating to loading arrangements for helicopters and the like
Inventor: WEAVER LESLIE GEORGE WHEAL
IPC: B64D1/22
Filed: 1961-05-02
Abstract: 927,685. Indicating courses. AVIMO Ltd. March 20, 1962 [May 2, 1961], No. 15889/61. Class 118. A helicopter, or like aircraft, is located at the correct height over a load 14 so that an automatic loader 16 may take it up, by arranging two poles 10, 11 in line with the load 14 and at predetermined distances therefrom, the poles having a disc 12 and annulus 13 which the pilot keeps aligned. A ring or bead sight may be attached to the aircraft on or near the windscreen to allow for variations in pilots' stature. The poles 10, 11 may have tripod feet and spirit levels to ensure their verticality. The poles are set up by positioning a horizontal telescope at the position of load 14, adjusting its height to suit the height of the load and sighting on bead and ring sights provided intermediate the ends of the telescopic poles 10, 11.
Patent GB-835940-A (GB)
Title: Improvements in or relating to furniture
Inventor: REASON LAURENCE ALFRED
IPC: B60B33/00
Filed: 1957-05-20
Abstract: 835,940. Revolving chairs etc.; moving furniture bodily. REASON & SONS Ltd., A. May 20, 1958 [May 20, 1957], No. 15918/57: Classes 52(1) and 52(2) A chair or other article of furniture mounted on legs or castors 22 is provided with a cross frame member 1 in which is rotatably and slidably mounted a spindle 4' carrying a floor-engaging pad 8 which when lowered by a cam 13 turned by a hand lever 18, either engages the floor to prevent translation of the chair, or lifts the legs or castors off the floor, to allow the chair to be rotated about the pad. The pad is spring-urged to raised position.
Patent GB-697820-A (GB)
Title: Automatic-control apparatus for television receivers
IPC: H04N5/53
Filed: 1951-07-05
Abstract: 697,820. Television. HAZELTINE CORPORATION. July 5, 1951 [July 21, 1950], No. 15988/51. Class 40 (iii). Relates to means for automatically stabilizing the black level of the image reproduced at the receiver of a negative modulation television system in which the synchronizing pulses are superimposed on black level " pedestals ". According to the present invention a final control voltage D, Fig. 2, proportional to the amplitude B of the line synchronizing pulses is developed across the cathode load 32, Fig. 1, of a detector 30 to which the positive video signal is applied (via terminals 26) and which is gated on by positive pulses (applied via terminals 29) derived from the receiver line scan generator and a fraction E of the control voltage appearing across R35 is applied to a resistance network 65 to give a brightness control voltage whose amplitude G changes by the same amount as the amplitude C of the black level pedestals when the video signal fluctuates. The positive video signals are also applied to the cathode of the cathode-ray tube (not shown) so that if the signal fades the brightness of the image tends to increase but this increase is balanced out by the decreased brightness control voltage which is applied to the grid of the cathode-ray tube via terminal 72. Since the detector is inoperative in the intervals between the synchronizing pulses, the brightness control voltage is unaffected by radmon noise pulses during such intervals. The detector 30 is similar to that described with reference to Fig. 1 in Specifications 697,819, 697,821 except that the cathode is connected to a positive voltage source +B through a resistor 60 so that the cathode potential D, Fig. 2, is more positive than the peaks B of the synchronizing pulses applied to its grid. Network 65 comprises a potentiometer 71 with its slider 70 connected via high resistances 67 and 68 to the junction of resistors 34 and 35 in network 32, the junction of resistors 67 and 68 being connected to terminal 72. Potentiometer 70 constitutes a manual brightness control and variable resistor 35 constitutes a contrast control. As described in Specification 697,821, a fraction of the control voltage 'developed across network 32 is applied to bias a synchronizing pulse seperator 50 and a negative A.G.C. voltage is developed across a network 45. Fig. 3 (not shown), illustrates a modification with the synchronizing pulse seperator omitted in which the ungrounded end of potentiometer 71 is connected to a negative voltage source and resistor 67 is connected to the cathode of V30, resistors 34 and 35 being replaced by a single resistor. Suitable component values are given for the embodiments described, and Specification 534,718 also is referred to.