baber/WOPTO huggingface dataset:
Patent GB-666301-A (GB)
Title: Improvements in or relating to telephone and like transmission systems and to transmitters and receivers for use therein
IPC: H04B1/66
Filed: 1949-07-11
Abstract: 666,301. Telephone transmission. VEAUX, H. M. July 11, 1949 [July 9, 1948], No. 18328/49. Class 40 (iv). The invention relates to either of the two following methods of reducing the band-width of signals for transmission, and restoring the original band-width at the receiver: (1) the original signals are applied to a delay line L, Fig. 2, from which tappings are taken to contacts 1, 2 ... n which are scanned by a cathoderay beam F at a speed lower than the speed of propagation of the signals in line L to produce at D the reduced band-width; at the receiver, the signals are applied to a delay line L<SP>1</SP>, Fig. 3, from which tappings are taken to contacts 1, 2 ... n which are scanned by a cathode-ray F<SP>1</SP> at an appropriate speed in the opposite direction to the direction of propagation in line L<SP>1</SP> to produce at D<SP>1</SP> the expanded received signal; and (2) the original signals are recorded by a modulated cathode-ray on an iconoscope screen and scanned at a lower speed by a second cathode-ray to produce the reduced bandwidth, Fig. 10, not shown; at the receiver the inverse process restores the band-width. According to the invention, the saw-tooth oscillator O1, Fig. 2, controlling the scanning of the cathode-ray is tripped by a circuit I which is fed with pulses produced when the telephone signal passes through zero and emits one output pulse for every 1, 2, 3 ... input pulses. The signal a, Fig. 1, is applied at P, Fig. 5, to a fullwave rectifying circuit D1, D2 whose output is applied to a valve L1 biased to produce pulses across R2 when the input is zero; as a result, pulses corresponding to t1, t2, t3, &c., Fig. 1, are produced, which are re-shaped and applied to a counter which emits one pulse to four input pulses, this pulse being applied to control the saw-tooth oscillator to produce a reduction in band-width of one half. In a modification, the signals are applied to deflect a cathode-ray F11, Fig. 8, which impinges on an electrode M at zero input to produce pulses across R3 for application to the re-shaper and counter. In the system of Figs. 2 and 3, the progressive attenuation produced by the delay line L or L1 is compensated by applying a saw-tooth wave from O2 or O<SP>1</SP>2 to the amplifier A or A1 to progressively increase its amplification. The Specification also includes the splitting of the band-width of the original signals into two adjacent bands and applying each band to the duplicated system of Figs. 2 and 3, Figs. 11, 12 (not shown). The adjacent bands may be transposed.
Patent GB-129729-A (GB)
Title: Improvements in or relating to Mechanism for the Control of Valves of Internal Combustion Engines.
Inventor: RICARDO HARRY RALPH
IPC: F01L1/12
Filed: 1917-12-11
Abstract: 129,729. Ricardo, H. R. Dec. 11, 1917. Valve-gear.-In a combined cam and fluid actuated gear, a beat or lift valve is opened by a cam. and closed, normally by fluid pressure, and at starting or during slow running, wholly or in part by a spring. In the construction shown, the valve spindle carries a piston D, the underside of which is acted upon by compressed air delivered from a reservoir L supplied by an engine-driven pump N. The closing pressure on the valve thus varies with the speed of the engine, the reservoir pressure being determined by a controlled escapeorifice L<1>. Mounted on the stem of the valve is a loose spring-actuated piston.H open to the atmosphere on its underside through a passage G<1>. At starting, the spring holds the piston H in its uppermost position in contact with the underside of the piston D. As the pressure in the reservoir increases, the piston H is gradually returned to the position shown, the seating of the valve then being effected entirely by the pressure of the air in the chamber E. Air trapped in a chamber D<1> acts as a buffer and prevents the valve from closing violently upon its seat Specification 125,659 is referred to.
Patent GB-571761-A (GB)
Title: Improvements in or relating to ventilators
IPC: F24F13/065
Filed: 1943-11-05
Abstract: 571,761. Ventilators. HOLTON, F. C., and BISHOP, J. C. D. Nov. 5, 1943, Nos. 18362 and 21319. [Class 137] A ventilator comprises a spherical member mounted for angular movement within an annular housing and made up of disc-like parts providing an air passage of laterally spaced slots the effective area of which is controlled by movement of the sphere as a whole or of individual discs or interposed members in relation to one another. A single piece sphere 10, conveniently a plastic moulding, comprises discs 12 united by a web 13 and providing preferably tapered slots 11 which discharge in the direction set by the discs either converging jets at high velocity or diffusing jets at low, according to the position of the sphere within bearing rings 14. Rotation of the sphere on an axis in the plane both of the web 13 and the mounting wall 16 enables the volume of air to be varied or the ventilator to be completely closed. A modification, Fig. 5, comprises a number of plastic mouldings each consisting of a disc 21, a vane 22, part spherical wall 23 and a hub 25 through which passes a central pin, the discs being assembled surface to surface with the vanes projecting in opposite directions and a spring 26 fitted between adjacent hubs. By means of finger recesses 24 the discs may be separately adjusted to vary or close individually the air passages formed by the discs and vanes. The sphere is mounted within a ring 31 on pivots 29 projecting from a central disc 28, the ring being rotatably secured over the flange of a bracket 32. By rotating the assembly about the pivots the ventilator may be closed.
Patent GB-1333538-A (GB)
Title: Dual voltage circuit arrangements
IPC: H02H11/00
Filed: 1972-04-20
Abstract: 1333538 Supply systems for inductive loads INTERNATIONAL STANDARD ELECTRIC CORP 20 April 1972 [28 April 1971] 18405/72 Heading H2H In order to enable an inductive load 3, 4 to be supplied by either one of two alternating voltages applied to terminals 1, 2, a capacitor 5 is connected in series with the load, a semiconductor switching device 6 is connected in parallel with the capacitor and the gate of the device 6 is connected to a non-linear component 7. Thus if a high voltage is applied to terminals 1, 2, the current flowing through the component 7 is sufficient to gate the triac 6 on whereby the capacitor 5 is short circuited and the high voltage is applied to the load 3, 4. If the voltage applied to the terminals 1, 2 is low the current flowing in the component 7 is insufficient to cause gating of the triac 6 and under these conditions the inductive load 3, 4 resonates with the capacitor 5 such that the voltage applied to the load approximates to the high voltage value. The component 7 may be in the form of a voltage dependent resistor, two series opposed Zener diodes or a glow lamp.
Patent GB-659254-A (GB)
Title: A balance assemblage in timepieces
IPC: G04B17/06
Filed: 1949-07-12
Abstract: 659,254. Timepieces. MORF, E. July 12, 1949, No. 18420. Convention date, Dec. 2, 1948. [Class 139] In timepieces, the balance staff assembly comprising pivots and hollow cylindrical parts has conical shanks carrying the pivots and projecting from the inside of the hollow cylindrical parts, which latter co-operate with fixed bearing parts to absorb radial components of shock after limited bending of the shanks. The balance staff 1, Fig. 1, has conical ends 6 with pivots 7 which engage fixed pierced jewels 8. The staff carries a collet 5 and a roller 3 having extensions 13 and 14 respectively which enter holes 11 and 12 in jewel settings 9 and 10. When shock forces are transmitted to the staff in a radial direction the ends 6 bend until the extensions 13 and 14 abut their respective settings 9 and 10. In another embodiment (not shown), the collet 5 is not mounted directly on the staff but on a hollow member carried thereby which member is provided with an extension which enters the hole in the top bearing setting.
Patent GB-646432-A (GB)
Title: Improvements in or relating to two-stage vacuum pumps
IPC: F04C23/00
Filed: 1947-07-11
Abstract: 646,432. Vacuum pumps. SCHWEIZERISCHE LOKOMOTIV-UND MASCHINENFABRIK. July 11, 1947, No. 18439. Convention date, July 16, 1946. [Class 110(i)] In a two-stage vacuum pump, the first stage is a pump having rigid conveying elements, and the second stage is a liquidring pump. If the pumps are driven by a single motor, the liquid-ring pump may be put into operation (by supplying liquid to it) only after the vacuum has reached a certain value. If the pumps are separately driven, they may be put into operation in any sequence, by hand or automatic control.
Patent GB-412412-A (GB)
Title: Rotary machine for dyeing and washing textile materials
IPC: D06B5/00
Filed: 1933-06-28
Abstract: <PICT:0412412/IV/1> <PICT:0412412/IV/2> A rotary machine for dyeing and washing textiles comprises a rotary reservoir 7, a series of radially disposed containers 8--13 in communication with the reservoir through openings controlled by valves 18.  The valve spindles are fitted with angle arms 22 which make contact when desired with control pins 23 and 24.  The rotary reservoir also comprises three pipes 33, 34 and 35, provided with valves operated by angle arms 39, 40 and 41 by means of pins 42 and 43.  These pipes serve for the escape of steam during the travel of the pipes from the pin 42 to the pin 43.  In operation the containers are filled with the articles to be treated, and the liquid pumped into the central reservoir by means of the pump 26<1>.  The machine is rotated with the pin 23 in the operative position and the pin 24 in the inoperative position so that the valves 18 remain open.  When the treatment is finished, both pins are placed in the operative position so as to empty the containers the valves then being opened when the containers are uppermost and closed when the containers are in the lower position.  A sample container 44 is provided for introducing a sample of the article to be treated.
Patent GB-497859-A (GB)
Title: Improvements in scoring and marking apparatus for the game of darts
IPC: F41J3/02
Filed: 1937-07-03
Abstract: 497,859. Electric signalling systems. BEZZANT, R. July 3, 1937, No. 18516. [Class 40 (i)] [Also in Group XV] A device for indicating scores made in a game of darts comprises an indicator board of dimensions considerably greater than those of a dart board, divided into areas in the manner of a dart board, and means in each of these areas to indicate a hit in the corresponding area of the dart board, the indicating means in each area being equal in number to the number of darts in a throw by one player. As shown, three lamps are fitted in each section of the board and after each dart is thrown, an attendant operates a key to light a lamp corresponding to the position of the dart in the board proper. The number on the periphery of the indicator can also be illuminated at the same time. In a modification the lamps can be replaced by panels which can be individually illuminated or darkened.
Patent GB-472435-A (GB)
Title: Improvements in or relating to automatic ticketing equipment for telephone or like exchange systems
IPC: H04M15/10
Filed: 1936-07-03
Abstract: 472,435. Automatic exchange systems. STANDARD TELEPHONES & CABLES. Ltd. (Devaux, L.) July 3, 1936, No. 18524. [Class 40 (iv)] Automatic ticketing machines for recording data relating to calls are mounted in a bay comprising a vertical row of receptacles, the machines being connected to the bay wiring by plug and jack strips, and the tickets being ejected into a common shoot which may deliver to a conveyer taking them to sorting positions. Ticketing machines are described. in Specifications 455,414 and 472,434. The bay comprises spaced uprights carrying shelves 5 fitted with arms 6 having bent over ends which are engaged by spring members 9 on the machines when pushed on to the shelves. One of the springs 9 closes contacts C in the current supply circuit and a jack (not shown) completes the operating and control circuits. The machines are driven from shaft 12 by shaft 13 carrying gear wheels 14 adapted to be engaged by flexible wheels 15 on the machines when clutch magnets are operated. The bay has two shoots 16, 17 for normal and test tickets respectively, the tickets being directed into the desired shoot by a movable guide 20. The front of the shoots consists of spaced gratings 21 to enable jammed tickets to be cleared and as occasional tickets may be of abnormal length they are guided down shoot 16 by an endless chain 22, driven by flexible shaft 24, or by separate guides adjacent the inlet from each machine. The duration recording is effected by repeated punching of the recording tape and the resulting confetti is led to shoot 28 and receptacle 29. The aggregate conversation time recorded by the bay may be ascertained by weighing or counting the confetti.
Patent GB-146470-A (GB)
Title: Paper filing and binding device
IPC: B42F13/00
Filed: 1920-07-05
Abstract: 146,470. Klein, F. J. Sept. 18, 1913, [Convention date]. Flexible-band files; attaching files to covers.-Relates to filing- devices of the kind having flexible tongues which are adapted to be pushed through the papers to be filed, and particularly to means for securing the tongues to the base. The tongues 4 are formed at the ends of a plate 5, Fig. 5, preferably formed with corrugations 6, and adapted to be detachably secured to the base 2 of the file by means of a plate 10, Fig. 6, having flanges 9 and tangs 11. The tangs are passed through holes 11 in the base and are bent over, the binding paper of the file base being then pasted on so as to conceal the bent tangs. The plate 5 carrying the tongues is passed betwen the flanges 9 and is held in position by the spring of the metal. The ends of the flanges may be bent down to secure the plate 5. The Specification as open to inspection under Sect. 91 (3) (a) describes also an arrangement in which the flanged member 10 has flanges 16, Fig. 10 (Cancelled), arranged in a circle in place of the tangs 11, and projections 19 are provided to hold the plate 5 in position. This subject-matter does not appear in the Specification a's accepted.
Patent GB-208995-A (GB)
Title: Improvements in full way valves
IPC: F16K29/00
Filed: 1923-07-18
Abstract: 208,995. Rose, D. July 18, 1923. Rotating and grinding valves on seats.-In a sluice valve, means are provided to facilitate the centreing of the valve for regrinding purposes. A valve disc A is provided with screws B having rollers H arranged around the periphery. When in normal working, the screws are inserted into the disc on the side opposite from that shown on Fig. 1, so that the valve is free to slide. In the position shown, the rollers serve to centre the valve disc when it is reground on its seating. In a modification, Fig. 4, a flanged disc F may be used to centre the valve, the 'disc being reversed in normal use. In another modification, Fig. 5, a spacing ring E may be removed and the inner disc D screwed further into the ring A to centre the valve. The plate or ring may carry a cutter or other tool.
Patent GB-632830-A (GB)
Title: Coating compositions
IPC: C09D101/28
Filed: 1947-07-11
Abstract: A coating composition is prepared by admixing a fibrous material tending to easy felting with a binder consisting of a readily water-soluble alkali-reacting cellulose compound in moist condition and with inorganic fillers ground in part to colloidal fineness and which contain 0.1 to 0.5 per cent calcium hydroxide, intimately mixing the product, passing it through a beating machine, and again mixing until a loose fibrous product is obtained.  Specified cellulose compounds are cellulose sodium glycollate or a semi-methylated derivative thereof, and specified fibrous materials are finely-ground cork, wood fibre treated with hard paraffin, finely-shredded paper, cellulose, and wood and silk scrap.  It is preferred that the fillers consist at least in part of finely-ground calcium carbonates, e.g. marble dust, chalk and natural limestone, together with an addition of talcum and zinc oxide.  Pigments such as ultramarine blue, chromium oxide, iron oxides and Neapal yellow, and disinfectants such as Antibacterin, may also be present.ALSO:A composition is prepared by admixing a fibrous material tending to easy felting with a binder consisting of a readily water-soluble alkali-reacting cellulose compound in moist condition and with inorganic fillers ground in part to colloidal fineness and which contain 0.1 to 0.5 per cent calcium hydroxide, intimately mixing the product, passing it through a beating machine and again mixing until a loose fibrous product is obtained.  Specified cellulose compounds are cellulose sodium glycollate or a semi-methylated derivative thereof, and specified fibrous materials are finely ground cork, wood fibre treated with hard paraffin, finely shredded paper, cellulose, and wool or silk scrap.  It is preferred that the fillers consist at least in part of finely ground calcium carbonates, e.g. marble dust, chalk and natural limestone together with an addition of talcum and zinc oxide.  Pigments such as ultramarine blue, chromium oxide, iron oxides and Neopal yellow and disinfectants such as antilbacterin may also be present.
Patent GB-568847-A (GB)
Title: Methods of and apparatus for controlling electric motors
IPC: B60L15/04
Filed: 1942-11-30
Abstract: 568,847. Control of D.C. motors. MOSS, F. Nov. 30, 1942, No. 18669/43. Divided out of 568,817. [Class 38 (iii)] Traction motors 1, 2, operated with seriesparallel transition, have their fields 3, 4 subjected to similar transition and supplied from an exciter 5 having a multi-tapped field 8 in series with the motors, which thus have a series characteristic with excitation variable in fine steps. The motors may also have small series fields 11, and the exciter may have a separate field 10 which will afford regenerative braking.
Patent GB-334968-A (GB)
Title: Improvements in or relating to lubrication systems of internal combustion engines
IPC: F01M9/12
Filed: 1929-06-18
Abstract: 334,968. Brock, W. H. June 18, 1929. Pistons. - Surplus oil is discharged through a hole 2 in the wall of the cylinder, which is opened at intervals by a rotary valve 4 operated by gearing 115 from the crank-shaft 14. A pump 10, operated by gearing 18, sucks oil from the interior of the valve 4 through a valve 8 and discharges it through a valve 12 and pipe 13 to the sump. The valve 4, suitably ported, may be common to all the cylinders of a multi-cylinder engine.
Patent GB-459438-A (GB)
Title: Improvements in or relating to control means for automatically regulating the speed of the spindles of electrically driven ring spinning or the like machines
IPC: D01H1/24
Filed: 1935-07-01
Abstract: 459,438. Speed-control mechanism for ring spinning &c. machines. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and JACOBY, H. C. E., c/o General Electric Co., Ltd., Witton, Birmingham. July 1, 1935, No. 18757. [Class 120 (ii)] The speed-control mechanism of electrically driven ring spinning or like machines comprises a bracket 1 mounted on the motor casing transversely to the axis of the motor, and carrying carns 8, 13 for determining the cyclic and basic variation on one side of a central web, and the change gearing 14 of the basic cam on the other side. Flanges 2 permit complete enclosure of the mechanism by removable covers. The bracket is mounted at one end of the motor casing and the cams 8, 13 are driven through sprockets 7, 6 from sprockets 10, 9 respectively coupled to the building- motion shaft and the ratchet-wheel shaft of the machine, the change gearing 14 being arranged between the sprocket 6 and the cam 13. A shaft 35 is connected with the brushshifting gear of the motor and is operated by a link 23 to which a composite movement is imparted by the cams 8, 13. Links 22, 21 extending from the link 23 are respectively coupled to a lever 19 operated by the cam 13, and engaged by a lever 20 operated by the cam 8. The extent of the movement imparted by the lever 20 is determined by the position of the roller 33 which is varied during the building of the cop by a connecting rod 25 adjustably coupled to the lever 19 by pin-andhole connections 26. A spring maintains engagement of the cams, levers and links. The shaft 35 extends through a long bearing 36 and is connected by an adjustable crank 37 through an intermediate part 45 with the control lever 41 of the motor. The control handle 42 is coupled to the part 45 by a bolt 43 so that it may be readily disconnected by a transverse movement to effect independent adjustment of the speed.
Patent GB-774347-A (GB)
Title: Block forming and wrapping machine
IPC: A23G9/28
Filed: 1955-06-29
Abstract: 774,347. Wrapping machines. ANDERSON, S. F. and ANDERSON, R. F. June 29, 1955 [July 7, 1954], No. 18854/55. Class 94(1). The machine forms open-ended packages comprising a block of ice-cream or other plastic material F, Fig. 10, enclosed in a tubular cover which is formed by folding a blank comprising panels and flaps A-E defined by scored lines or perforations. The cover material is fed from a roll 39, Fig. 18, through perforating or scoring rollers 43 and is severed into blanks by mechanism 46. Each blank is then fed along a supporting table by bars 36 carried by an intermittently-operated endless chain 33, the first step of movement causing the panels A and B to be erected by fixed members 85 and the next step positioning the U-shaped blank as shown beneath a nozzle 26 through which ice-cream is extruding. A stepped plate 87, 88 is carried by a rod 89, which is reciprocable in a support 91 carried by a cam-operated slide 92 and occupies the position shown when the ice-cream has filled the U-shaped blank. The plate is then moved across the nozzle by operation of the rod 89 so that the part 87 causes the flap D to be folded back by engagement with the nozzle and to shear the enclosed block F from the nozzle. At the same time, the flap E is folded down by engagement with a fixed folder 184, Fig. 11, and the part 88 pushes a previouslyformed package on to a delivery tray 37. The block and cover are then moved a further step by the chain 33 and the plate 87, 88 is simultaneously moved to the left by operation of the slide 92, whereby the flap D is folded over the flap E by a fixed folding member 186. The plate is then extracted and the slide 92 returns to its original position. Successive packages pushed onto the tray 37 from a row which is advanced against the resistance of a slidable member 155 attached by cable 156 to a weight 157. When the tray is full the member 155 engages a member 158 which operates a switch 162 to cause a shaft 167 to be coupled by a solenoidoperated latch 164 to an arm 173 actuated by a cain 170. The shaft is thus rocked to actuate a plate 178 which pushes the row of packages to the right, the operation being repeated when the next row accumulates. Various parts of the machine are adjustable to suit blocks of different sizes.