baber/WOPTO huggingface dataset:
Patent GB-847622-A (GB)
Title: Improvements in electronic circuits
IPC: G01S7/00
Filed: 1957-03-15
Abstract: 847,622. Valve pulse shaping circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. March 15, 1957 [March 15, 1956], No. 8577/57. Class 40(6). A motor control circuit for controlling the speed of a two-phase synchronous motor in accordance with the repetition rate of incoming pulse signals comprises means for generating "square waves" at one-half the pulse repetition frequency, deriving therefrom "triangular waves" at the pulse repetition frequency and deriving from the triangular waves two sinusoidal waveforms in quadrature for application to the synchronous motor. The circuit is designed to operate over a five-to-one frequency range and means is provided for maintaining the amplitude of the output waveform substantially independent of frequency. The incoming pulse waveform a, Fig. 2, is applied to a bistatable-state circuit 11 to derive a waveform b which is applied to a miller-integrator circuit 12 to generate therefrom a triangular waveform c. This is applied to a frequency-doubling circuit 13 which delivers a waveform d at the input pulse frequency. This is applied through an amplifier 14 to a circuit 16 which delivers sinusoidal outputs in quadrature at the same frequency. These outputs are applied through respective cathode followers and power amplifiers to a two-phase motor 25 to cause it to rotate in synchronism with the incoming pulses. The amplitude relationship between the triangular wave output of amplifier 14 and the square-wave input of miller-integrator 12 depends upon the frequency of the input pulses; hence a signal is fed back from the amplifier output through circuits 17 and 18 to so control the square-wave amplitude as to maintain the triangular-wave amplitude constant.
Patent GB-609670-A (GB)
Title: Improvements in or relating to locomotive drives
IPC: B61C9/44
Filed: 1946-03-20
Abstract: 609,670. Motor-vehicle driving-arrangements. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. March 20, 1946, No. 8623. Convention date, March 23, 1945. [Class 79 (ii)] In a locomotive drive the axle is surrounded by a hollow shaft having spiders to resiliently engage the wheels on the axle and one spider is integral with a gear member transmitting the drive, while roller bearings for the quill are carried by a quill housing carried by or integral with the motor frame. As shown, the quill shaft 11 carries spider arms 17, 18 having cups 16 carrying springs or rubber 15 to engage the spokes of wheels 12, and is carried in bearings 29 in a housing 26 carried by the motor 14 which has a pinion 24 meshing with a gear rim 22 bolted to the spider 18. If a twin motor is used, both pinions engage the rim 22.
Patent GB-766669-A (GB)
Title: Improvements in saturable core reactance devices
Inventor: BELSEY FREDERICK HAROLD
IPC: H01F29/14
Filed: 1954-03-24
Abstract: 766,669. Inductors. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. March 23, 1955 [March 24, 1954], No. 8625/54. Class 38 (2). An inductor with a saturable core comprises a relatively thin permanent magnet 8 magnetized perpendicular to its faces against which bear magnetically soft pole pieces 9, 10, and U-shaped saturable laminated limbs 3, 4 carrying windings 7 and having ends which rest on the surfaces of pole pieces 9, 10. There are two U-shaped limbs at each end of the structure with ends connected in pairs by yokes to form a closed circuit for the A.C. flux which includes no part of the permanent magnet. The yokes comprise short laminations 20 reaching between the nearer edges of the limbs, and longer laminations 19 which pass between the separated laminations of the limbs. The yokes are wider than the limbs so that the latter saturate first. The interleaved limb and yoke ends are clamped between plates 13, 14 by bolts 16. The assembly is mounted on a baseplate 17, the coils being mounted in U-shaped brackets 18. The device may be used as a transductor, some of the windings carrying a controlling D.C.
Patent GB-833328-A (GB)
Title: Improvements relating to the permanent waving of hair
IPC: A45D2/36
Filed: 1955-03-24
Abstract: A permanent hair-waving reagent, e.g. a thioglycollate, is applied to a tress of hair wound upon a mandrel and heat is applied to an extent sufficient to wave the hair and dry the tress without the necessity for a further separate drying or treatment beyond brushing the hair. The heating may be effected electrically, or with an exothermic pad containing calcium oxide, a temperature of 210 DEG  F. being obtained and the pad remaining in place for 10 to 15 minutes.
Patent GB-542318-A (GB)
Title: Improvements in light sensitive apparatus
IPC: G05B11/01
Filed: 1940-05-15
Abstract: 542,318. Light-sensitive switches. SVENSKA AKTIEBOLAGET GASACCUMULATOR. May 15, 1940, No. 8697. Convention date, Oct. 3, 1939. [Class 38 (v)] [Also in Group XIII] In a light-sensitive device comprising a partlyblackened pivoted tube 1 containing a volatile liquid, the tube is in the form of an open circle with its centre at the pivotal axis 5 so that the centre of gravity of the liquid remains at the same distance from the axis and the action is very sensitive. The tube 1 is mounted together with a mercury switch 10 and a counterweight 11 an a spindle 5 which rests on the knife-edge upper ends of supports 6. The tube may contain sulphur dioxide, one half being blackened and the other half light-reflecting. Stops are provided to limit its movement. The Figure shows its position for periods of darkness. With daylight, the vapour in the blackened half expands drawing the liquid towards the other end and causing the tube to rotate so that the liquid remains at the lowest part.
Patent GB-782027-A (GB)
Title: Improvements in and relating to aerial installations
Inventor: WHITE JOHN
IPC: H01Q1/40
Filed: 1955-03-25
Abstract: 782,027. Aerials. WESTLAND AIRCRAFT, Ltd. March 26, 1956 [March 25, 1955], No. 8724/55. Class 40 (7). An aerial comprises a conductor a in a hermetically sealed rigid insulating casing b carrying a terminal f connected to the conductor. The conductor a may be composed of sheet metal gauze and the casing b is of transparent material. The casing may be attached to form part of an aircraft, vehicle or marine vessel.
Patent GB-229524-A (GB)
Title: Improvements in supports for clothes when being dried and aired
IPC: D06F53/02
Filed: 1924-04-07
Abstract: 229,524. Bramall, E. H., and Bramall, K. B. April 7, 1924. Clothes airers.-A portable clothes airer comprises members 1, 2 adapted to be attached by eyes 4 to hooks secured to the opposite walls of a room and to carry a clothes line, and a hand-grip 5 by which the line is pulled taut. When in use, the line is held taut bv anchoring its extremities. Fig. 3 shows the airer in its folded position. According to a modification, only two runs of line are supported by the members.
Patent GB-1235233-A (GB)
Title: Improvements in or relating to beverage dispensing machines
IPC: G07F13/10
Filed: 1969-02-18
Abstract: 1,235,233. Beverage dispensers. CORNELIUS CO. 18 Feb., 1969 [7 May, 1968], No. 8808/69. Heading A4T. In a beverage dispenser a cup is deposited into an embracing guide 14, Fig. 4, comprising a fixed portion 43 and a movable portion 42 pivoted at 45, Fig. 6. The cup then rests on a sub-table 12 pivoted via horizontal spring-loaded spindle 21 on a table 11 vertically pivoted to the casing at 19. After e.g. a coin actuates a starting apparatus including a timer switch, the cup is filled until its weight pivots sub-table 12 and opens, via spindle 21, a switch 24. A motor driven cam 31 rotates and, via engagement at 34 with table 11, swings the table outwardly to cam open doors 36, 37 via cams 40, 41, the cup shifting guide portion 42 out of the way. The outward swinging of the table may be against spring 35 and/or springs on the doors, and the inner end of the table 11 moves between limit switches 27, 28. On removal of the load of the filled cup from sub-table 12, switch 24 is closed and the table 11 is withdrawn into the casing to engage a dependant arm 46 to move the guide portion 42 into its cup embracing position. The table 11 may be moved from the motor via a pin and slot connection and a cam with two dwells actuates a single limit switch. The guide may be a wire frame with a lower aperture having a gate opening with outward movement of the table.
Patent GB-730741-A (GB)
Title: Improvements relating to containers for the package of eggs and other fragile articles
IPC: B65D5/50
Filed: 1953-03-31
Abstract: 730,741. Boxes for fragile articles. LANGFORD, R. S. March 29, 1954 [March 31, 1953], No. 8811/53. Class 18. A container a holding fragile articles such as eggs is engaged at each end by sockets c' mounted on frames c by rubber bands c<SP>2</SP>, the frames fitting into an outer box b. The inner box may have top and bottom felt linings, crossed partition strips and corrugated tubes separating and protecting the contents.
Patent GB-625815-A (GB)
Title: Automatic electric temperature control systems
IPC: G05D23/22
Filed: 1946-03-21
Abstract: 625,815. Automatic control systems for internal-combustion turbines. SMITH & SONS (ENGLAND), Ltd., S., MEREDITH, F. W., and CAMPBELL, 1. C. M. March 21, 1946, No. 8821. [Class 38 (iv)] In an automatic temperature control system, an electric signal proportional to the rate of change of temperature is applied, through an amplifier, to a motor controlling the temperature, and driving a generator, output of which is applied to the amplifier input in opposition to the rate of change signal. As shown, the jet engine 12 is supplied with fuel through pipe 15 and injection device 14. The D.C. highgain amplifier 20 supplies the D.C. motor 21 which drives both the D.C. generator 22 and the throttle-valve 23, in the pipe-line 15, through the gear-box 24 and shaft 26. Associated with the engine jet-pipe 13 are the resistor 28, comprising one arm of D.C. energized Wheatstone bridge 29, and the thermo-couple 16, of which one junction is lagged, and the output of which is amplified by the D.C. first stage amplifier 18. The output voltages of amplifier 18, bridge 29 and generator 22 are applied algebraically, respectively, by the leads 19, 30, 25 to the input of amplifier 20. During a fluctuation of the temperature of the jet-pipe, the sense and magnitude of the speed-of motor 21 are such as to position the throttle correctively and to cause the generator 22 to apply a voltage to amplifier 20 substantially equal and opposite to that delivered by amplifier 18, which is proportional to the rate of change of jet temperature. The device 28, 29 is purely a monitor and gives a weak signal compared with the other two voltages applied to amplifier 20, and its effect on the operation of motor 21 during a disturbance may be neglected. Datum temperature conditions are maintained by the resistor 28, adjustment being effected by adjustment of one arm of the bridge 29. In a modification (not shown) the rate of jet temperature variation is measured by a differentiating circuit energized from a thermo-couple of which only one junction is in contact with the jet. In a further modification (not shown), the circuit employs A.C. throughout and the thermocouple device is replaced by a Wheatstone bridge having two elements with differing temperature response rates embedded in the jet and which is balanced during stable conditions. With this modification, the bridge 29 may be dispensed with and by a suitable choice of parameters the second bridge produces both the datum and rate of change voltages. Specifications 576,248 and 576,249 are referred to.
Patent GB-147259-A (GB)
Title: Improved moulds or shuttering for use in building concrete structures
IPC: E04G11/30
Filed: 1919-04-08
Abstract: 147,259. Jennings, W. E. April 8, 1919. Casting in situ.-Relates to shuttering of the kind formed of interchangeable rectangular flanged plates adapted to be bolted together and combined with distance-pieces secured by ties passing through the holes formed by cut-away corners of the plates, the flanges being stopped short of the corners, and also to shuttering which is provided with links to facilitate removal and replacement. The plates A have tubular distance-pieces 7, Fig. 7, arranged at the cut-away corners thereof, and the plates in superimposed rows are connected together by links 10, Fig. 5, whereby the lower plates may be removed and replaced in position as upper plates. The links 10 are jointed to brackets 11 fixed to the centres of the vertical flanges. The shuttering may be plain or impressed with such pattern as it is desired to give to the finished structure. Recesses may also be formed in the shuttering to admit of joists. In shuttering designed for angles &c. of walls, the plates may be bent to the desired shape, or the plates may have their flanges bent as shown in Fig. 8. Reference has been directed by the Comptroller to Specification 422/12.
Patent GB-1253771-A (GB)
Title: Hydrocarbon pyrolysis process
IPC: C10G9/00
Filed: 1970-02-24
Abstract: 1,253,771. Quenching hydrocarbon pyrolysis effluent. LUMMUS CO. 24 Feb., 1970 [24 Feb., 1969], No. 8861/70. Heading C5E. A hydrocarbon pyrolysis effluent is quenched and a portion of the heat thereof utilized by contacting the effluent with a fuel oil and recovered quench liquid, passing the resultant mixture into a quench liquid fractionator, recovering from the fractionator a sidestream comprising the distillate fraction of the fuel oil and like components of the effluent and a bottom stream comprising the residual portion of the fuel oil and like components of the effluent, and employing a portion of the bottom stream, after cooling, as the recovered quench liquid. Part of the sidestream may be used as a fuel in the pyrolysis zone.
Patent GB-1064843-A (GB)
Title: An improved method of and apparatus for forming mould cores
Inventor: WILLIAMS GEORGE FREDERICK
IPC: B22C23/00
Filed: 1966-03-15
Abstract: 1,064,843. Core-making machines. ALLIED IRONFOUNDERS Ltd. March 15, 1966 [March 6, 1963], No. 8911/63. Heading B3F. A method of making a core comprises placing a hollow injector 21 within a core box 11, filling it with core material, removing the injector thus leaving the core material within the core box where it is plasticized for a predetermined period, allowing excess core material to escape from the box, and then completing the setting of the material remaining in the box. The core box is split longitudinally each half being hinged for opening by a cylinder-piston 17. The bottom of the box is closed by a plug 29 vertically displaceable by ram 31 for opening to allow excess core material to escape. After removal of the injector 21, the top of the core is supported by a guide 26 vertically movable by a ram 27.
Patent GB-747525-A (GB)
Title: Device for the step by step advance of a strip
IPC: B65H20/24
Filed: 1954-03-26
Abstract: 747,525. Feeding webs. SAPAL SOC. ANON. DES PLIEUSES AUTOMATIQUES. March 26, 1954 [May 4, 1953], No. 8915/54. Class 100 (1). A web 2 is drawn from a roll 1 by looping devices comprising rollers 5 and 8 carried on pivoted arms 3 and, 6 interconnected by a rod 11, such that when a gripper 16 draws the web 2 past knives 15 web is made available by the rollers 5 and 8 moving towards the broken line position. After completion of the gripper feeding stroke the web 2 is clamped by a lever 14, while the rollers, under the influence of a spring 9, draw off a further length from the roll 1. The distance between the end positions of the rollers 5 and 8 is preferably approximately a quarter of the length of the gripper stroke, such that the roll 1 does not rotate until the gripper is stationary.
Patent GB-1197953-A (GB)
Title: Patterned Sheet Material
Inventor: HAUGHTON GEOFFREY JAMES SINCLA
IPC: D04H11/00
Filed: 1967-02-24
Abstract: 1,197,953. Patterned flock-coated sheet material. DUNLOP CO. Ltd. 22 Feb., 1968 [24 Feb., 1967], No.8944/67. Heading B2E. Patterned flock-coated sheet material having a relief pattern on its surface is produced by providing a base comprising a sheet of rubber or synthetic resin composition having adhesively applied thereto a perforated sheet material which provides the base with depressions and/or outstanding portions corresponding to the desired surface pattern, the base having an adhesive coating over the depressions and/or outstanding portions, and depositing flock onto the adhesive coating. The perforated sheet material may be an open mesh sheet material, which Imay have been flocked prior to being laid onto the Ibase sheet in which case the subsequently applied flock adheres to the adhesive in the open areas of the flocked mesh. The fibres applied may differ in colour and/or length from those deposited on the mesh to obtain a striking patterned effect. The open mesh sheet material may be an open-weave fabric of synthetic fibre, such as a scrim fabric, and may be of nylon or rayon. The base sheet may be of foam rubber or foam synthetic resin composition, e.g. polyurethane, or a laminate of the rubber or synthetic resin composition with a hessian, textile and/or paper sheet. The adhesive may 'be applied to the base by means of a spreading roller in the form of a rod having a series of substantially uniform ridges running around its surface of having a single surface ridge in the form of a helix, by a knife or a smooth roller. The flock, e.g. nylon flock, may 'be applied electrostatically. The flocked material are useful as floor-coverings, upholstery, curtains, and may be vacuum-moulded into a shaped car carpet.
Patent GB-1182022-A (GB)
Title: Conveyor Mechanism
Inventor: BENATAR VICTOR
IPC: B65G19/26
Filed: 1967-02-24
Abstract: 1,182,022. Endless conveyers. MEAD CORP. 24 Feb., 1967 [25 Feb., 1966], No. 9024/67. Heading B8A. Groups of containers C in an open-sleeve type wrapper 1 are conveyed by pushers 30 pivotally carried at 31 by an endless chain 13 and having cam follower members 32 and 34. The member 32 initially engages a cam 36 of variable radius as the pushers approach the working run of the conveyer. A guide 40 secured at 41 to the cam 36 then establishes a passageway in which the members 32 are caused to ride. On the actual working run the members 32 and 34 are engaged in a channel 44 of a guide 43. On the return run the members 32 and 34 are constrained by a guide 48. The pushers 30 may have a bevelled edge 55 (Fig. 4, not shown). In a modification (Figs. 8 and 9, not shown) the individual containers are engaged by respective pushers each of which is projected through suitable apertures (63) formed in the carton. The apertures (63) have openable flaps (64), (65).
Patent GB-274393-A (GB)
Title: Improvements relating to slide valves
IPC: F16K3/316
Filed: 1927-04-02
Abstract: 274,393. Turnbull &. Co., Ltd., A., Howden, W. H., and Norrie, L. F. April 2, 1927. Sluice valves.- A sluice valve of the kind including spring pressed valve discs 2 embraced by a bridle 3 secured to the valve actuating spindle 4 has the bridle formed with elongated guide channels 5 adapted to co-operate with guide pins screwed into the valve casing. The pins have reduced ends 7 engaging the grooves and have the heads 6 adapted to engage packing washers 9 housed in recesses 8 in the casing.
Patent GB-180487-A (GB)
Title: Improvements in breech-loading small arms
IPC: F41A3/10
Filed: 1921-03-29
Abstract: 180,487. B.S.A. Guns, Ltd., and Norman, G. March 29, 1921. Breech actions, sliding breech-block.-Relates to guns having a vertically-sliding breech-block operated by an under lever having a cross-pin engaging an horizontal slot in the breech-block. According to the invention, (a) the cross-pin 6 is carried by a pair of lugs 3 on the lever 4, and besides passing through a slot 5 in the breechblock 1 is also adapted to cock the firing-pin 9 by engaging a cam 15 thereon, and (b) the breechblock and cocking-lever are so constructed that an additional movement for positive extraction is possible. In the construction shown, a spring 29 is interposed between the extractor lever 28 and the end 27 of the operating-lever for the purpose of extracting and ejecting the cartridge case. The slot 5 in the breech-block is formed at the front and back with inclined parts 5<a>, 5<b>, Fig. 4, which allow independent initial and final movements of the operating-lever for the purpose of effecting respectively an initial retraction of the firing-pin and a positive actuation of the extractor if the spring 29 should prove insufficient.
Patent GB-693657-A (GB)
Title: Calculating machines
IPC: C25D3/22
Filed: 1951-04-20
Abstract: 693,657. Calculating-apparatus. NATIONAL CASH REGISTER CO. April 20, 1951 [June 29, 1950], No. 9241/51. Class 106 (i). A calculating-machine has a differentiallysettable symbol type carrier, adapted, when set to a total-taking position, to operate a mechanism which is effective only during the next adding operation to actuate a printing hammer to print a symbol normally located in the printing position. The symbol shows that the totalizer was clear prior to the entry of the item against which it is printed. During any operation other than an addition, the symbol type bar 700 is differentially set and the appropriate symbol is printed by a hammer 709 released by a latch 711 tripped by a disabling member 767 mounted on a rod 97 moved to the left in the machine operation. Pivoted on a stud 748 in the latch are plates 750 and 715, Fig. 4, coupled by a stud 769. A cam-slot in the plate 750 is engaged by a stud 752 in a lever 753 held against movement during a total-taking operation by a bar 755 pivoted to the lever and abutting in a total-taking operation against a stud 770 in the symbol type bar. When the latch 711 is rocked in such an operation, the plate 750 is consequently rocked counterclockwise and is held in that position by a latch 758, an upper step 773 of which engages under a lug 756 on the plate. The latch 758 is released in total-taking operations by a lever 761 freed by a lug 763 on the symbol type bar. During a normal add operation, the disabling member 767 is held in a clockwise position by a stud (not shown) on the symbol type bar and the latch 711 is not actuated. However, in the first add operation after a total-taking operation, a stud 714 in the units amount printing hammer latch 713 engages the plate 715, since it is held in a counter-clockwise position, and the symbol printing hammer latch 711 is also actuated, to free the hammer 709 which causes a print of a special symbol to be made from the uppermost type carrier. When the latch 711 is operated, the plate 750 will be rocked clockwise by a spring 751 (the pivot stud 752 no longer being held still but the latch 758 being held by the lever 761) and the lug 756 will engage a lower step 757 of the latch 758. If the operation following a total-taking operation is a non-add operation, the symbol bar is raised to its highest position so that, although the bar 755 is not abutted by the stud 770, the lever 761 does release the latch 758. The latter is thus able to follow the plate 750 when the latch 711 is actuated and the lug 756 remains on the upper step 773. Specification 693,659 is referred to.
Patent GB-556964-A (GB)
Title: Improvements in and relating to brushes
IPC: A46B3/12
Filed: 1941-07-04
Abstract: 556,964. Brushes. EASTERMAN, L., and BOSHER, G. July 4, 1942. No. 9281. [Class 19] In a brush of the softhair type, particularly for use in brushing explosive powders, the knots or bunches of bristles 3 are secured in recesses 2 formed in the endgrain of a wooden handle 1 and are secured by cement 6 without any rivets or metal parts. The lower portion of the handle may have a sleeve of rubber or chamois leather cemented to it.