baber/WOPTO huggingface dataset:
Patent GB-654657-A (GB)
Title: Improvements in or relating to drive mechanisms for longitudinally translatable machine tool tables
IPC: B23Q5/26
Filed: 1947-07-25
Abstract: 654,657. Boring and milling machines. GIDDINGS & LEWIS MACHINE TOOL CO. July 25, 1947, Nos. 20048 and 20049. Convention dates, Feb. 11, 1942. [Class 83 (iii)] [Also in Group XXIV] A drive mechanism for a machine-tool table longitudinally translatable on a horizontal bed 1 comprises a feed unit 14 which is mounted in the bed, is operatively connected to the table, and which includes two change-speed mechanisms connected in series and each including a gear element 109 shiftable in opposite directions by a hydraulic actuator 138, two reversing valves for respectively connecting the actuators to a pressure source, and electric control means for selectively actuating the valves to adjust the gear elements into any one of a plurality of relative positions of adjustment. The machine described is a boring, drilling and milling machine of the planer type having a verticallyadjustable headstock and tailstock carried on columns sliding on guideways 5, 7. The table is reciprocated on guideways 2, and carries two longitudinal parallel racks meshing with two gears 44 rotated by a worm-wheel 34 mounted between, and coaxially with, them. The wormwheel 34 meshes with an hour-glass worm driven by a reversible, variable-speed, electric motor 16 through a shaft 11 or by hand through a shaft 50. The motor is connected by a chain drive to a sprocket 86, Fig. 10, which rotates the shaft 11 either through the gears 91, 93 and a clutch 17 to give a fast speed, or through the gears 92, 97, 99 ... 107, 111, 112 and a clutch 18 to give four speeds. A shifter arm 117 for the clutches 17, 18 is moved into a neutral or its two operative positions by hydraulic pistons 119, 120 actuated by the operator through solenoid-actuated two-way valves. The four feed-speeds are selected by a two-pole four. position switch controlling, through solenoids, pistons 137, 138 carrying shifter-arms 140, 142. The hydraulic pressure is supplied by a pump and serves to hold the pistons in their adjusted positions. The table is hand-fed by engaging a gear 73, Fig. 5, on a hand-cranked shaft 70, which rotates the worm 34 through a gear 74, a shaft 56, the shaft 50 and a reversible, longlead worm-gearing. Beds; framing.-The four-speed gearing is carried in two boxes 80, 81, Fig. 1, supported in a recess 84 in the bed by flanges bolted to ledges formed on the bed. The worm gearing 34 is similarly supported in a recess 20. Gauging-devices.-During power and handoperation the rotation of the shaft 56 also rotates a shaft 62 carrying at its end a graduated collar 66, which may be hand-set to a zero mark on the machine-frame, to indicate the amount of movement of the table.
Patent GB-863239-A (GB)
Title: Letter-sorting system
IPC: B07C3/08
Filed: 1959-06-12
Abstract: 863,239. Sorting letters. STANDARD TELEPHONES & CABLES Ltd. June 12, 1959 [June 13, 1958], No. 20214/59. Class 78 (1). In a letter sorting system of the kind in which the letters are fed by a conveyer in correct position for reading to one or more sorting stations 2 and, after a code signal corresponding to the address has been keyed in and fed to a store, are transferred into intermediate containers 8 which deliver the letters in accordance with this code into a collecting container 18, each container 8 is provided with a large number of compartments 9, each of which receives one letter. When the last compartment of a container has been filled, the container is transported to a stacking station 12 whence they are released in accordance with the requirements of the emptying device 11. A stacking station 13 is provided for the emptied containers.
Patent GB-419393-A (GB)
Title: Collapsible forms for making cavities in walls, floors, roofs, and such like, in concrete or other similar material
IPC: E04G15/06
Filed: 1933-07-18
Abstract: 419,393. Cores for concrete moulds. MATTHEWS, J. F., Meadowsweet, Lower Road, River, Dover. July 18, 1933, No. 20231. [Class 20 (ii).] A core for moulding hollows in blocks or cast concrete walls consists of a flexible shell and a collapsable framework which is removable from out of the shell. The shell E is formed of pliable sheet iron with longitudinal stiffeners A and bent over sides and the framework is formed of side bars J and cross bars B, the cross bars being attached to the side bars so that they can be turned about their axes and also be inclined to the side bars, so that the framework can collapse from a rectangular shape, Fig. 4, to that of a rhomboid, Fig. 5, for removal from the shell. Flexible bands D brace the cross bars together and maintain the framework in either expanded or collapsed position.
Patent GB-604933-A (GB)
Title: Improvements in or relating to electrical control and indicating devices
IPC: G01F23/26
Filed: 1945-08-08
Abstract: 604,933. Telemetering. LIQUIDOMETER CORPORATION. Aug. 8, 1945, No. 20274. Convention date, Dec. 11, 1944. [Class 40 (i)] In a liquid level or other telemeter indicator, use is made of the mutual " pulling " effect between two or more coupled oscillators and change of the liquid level or other variable produces an alteration in the relative capacitance of condensers associated with interconnected thermionic oscillators causing a phase alteration between the oscillator outputs which operate electromagnetic rotary indicating means. As shown, a device I comprises three interconnected Hartley oscillators 1, 1<SP>1</SP> and 1<SP>11</SP>, each respectively including condensers 15, 151 and 15<SP>11</SP> contained in tank 25 and immersible in the dielectric fluid, the level of which is to be measured. The outputs from the oscillators are taken by leads 26, 261 and 26<SP>11</SP> through rectifiers 34 to the delta-connected stator windings 33, 331, 33<SP>11</SP> of the ratiometer or other indicating means II, the resultant field of which turns the permanent diametrically magnetized rotor 30 supporting pointer 31 associated with scale 32. The plates 16, 16<SP>1</SP> and 16<SP>11</SP> of condensers 15, 15<SP>1</SP> and 15<SP>11</SP> have each one side shaped to a sine curve extending over 180 degrees and mutually displaced 120 degrees. The rate of change of capacity and the currents flowing in the leads 26, 26<SP>1</SP> and 26<SP>11</SP> are sine functions of the liquid level. It is stated that the rotation of the rotor 30 is, therefore, uniform and continuously proportional to the liquid level. The liquid may be conducting when the plate electrodes are coated with a non-conducting layer. Two oscillators only may be used and the indicator operated by the A.C. output thereof without rectification. The invention may be used to measure changes of any variable convertible to a capacitance change by adaptation of the assembly III in Fig. 1 to effect capacitive changes from, for example, movements of bi-metal coils or strips or the liquid of a thermometer. The plates of assembly III may be rectangular and corrugated or mutually inclined to give the same capacitance level function as the shaped arrangement and may be shaped in accordance with the shape of the liquid container to indicate volume. In a modification, Fig. 15 (not shown), a sixcoil ratio-meter operates from a single oscillator which feeds the primary of a transformer having three secondary windings. The variable to be indicated controls three capacitors separately connected across each secondary to produce a phase-change in the stator coils as in Fig. 1. In a further modification, Fig. 16 (not shown), the contents of two tanks are totalized. The system is identical with that in Fig. 1 except that two condenser transmitters are connected in parallel to the oscillator.
Patent GB-358515-A (GB)
Title: Improvements relating to controlling means for motor cars or the like
Filed: 1930-07-04
Abstract: 358,515. Brakes. CHRISTIANSEN, M. A. A. P., 12, Ole Olsens Vej, Gentofte, Denmark. July 4, 1930, No. 20329. Convention date, Jan. 30. [Class 103 (i).] Comprises means for controlling the throttle, brake and/or clutch of a motor vehicle by a single pedal or the like, in which the throttle valve 2 is normally biased to the open position and the brake or clutch pedal 9 has a movable foot-piece 12 connected to the throttle by Bowden or other mechanism 13, 14, the arrangement being such that a progressive movement of the driver's foot in one and the same direction first closes the throttle and then actuates the brake and/or the clutch withdrawal mechanism. In the construction shown the throttle spindle 3 carries arms 4, 5, the arm 4 being acted upon by a spring 6 tending to open the throttle and by the Bowden wire 13 actuated by the foot-piece 12. The extent to which the throttle is opened by the spring 6 is controlled by engagement of the arm 5 with a stop 24 on a handactuated rod 23. The pedal 9 is the brake pedal (the connections to the brakes not being shown) and is connected to the clutch 16 by a rod 20, having an adjustable lost-motion connection 21, 22, and the clutch lever 17, the mechanism being so arranged that the clutch is not disengaged by the brake pedal until the brakes have been applied to a predetermined extent.
Patent GB-294109-A (GB)
Title: Improvements in or relating to propellers
IPC: B63H1/08
Filed: 1928-07-12
Abstract: 294,109. Meindersma, W., Rutgers, M., and Dijkgraaf, A. F. J., (trading as Findriven-Syndicaat). July 16, 1927, [Convention date]. Propelling and steering by paddle wheels and vibrating plates.-Feathering paddles which move on a conical path are supported at the arm and are driven by a part or parts slidably arranged in guides rotated by the driving shaft. The paddle arm 1 is supported at 2 and at the inner end 3 has a fork 4 pivotally secured to block 12 adapted to slide in channels 13 in a member 9 which is adjustably mounted in the fork 7 of the driving shaft 5. For making the adjustment a crank 10 on the central rod 6 carries a block 11 which can be positioned in slots in the slider 9. In another form the single slider is replaced by two coupled sliders and the control pin is connected bv a rod with one of the sliders. In a modification, the driving shaft is inside the hollow control rod and has a cross-bar for driving an adjustable eccentric to which the aim is pivotally secured. The control 6 may have a cardiode cam 28, Figs. 4, 5, against which bear rollers 27 on the arms 29 of a fork 26 at the inner end of the paddle arm 3. The driving shaft 5 has a cross-piece 8 for conveying the drive.
Patent GB-202152-A (GB)
Title: Improvements relating to kaleidoscopes
IPC: G02B27/08
Filed: 1923-03-05
Abstract: 202,152. Pringle, A. March 5, 1923. Kaleidoscopes of the kind comprising two mirrors at an angle to each other above a display table are provided with a cover or screen across the outer edges of the mirrors and extending from the top to a short distance above the display table. The Figures show a form in which the angle between the mirrors 1, 2 is adjustable. The cover or screen 19 extends at the back over the whole length of the mirrors and acts as a hinge or connection, and at the front it extends down to the level 4 a short distance above the rotary display table 9. The mirror 2 is carried by a support 13 secured to the base 8, and the mirror 1 is carried by a support 14 passing between the base and a plate 15. The support 14 carries a plunger 17 adapted to enter any one of the holes 18 in the plate 15 to secure the mirrors at the desired angle to each other. The inner edges of the mirrors are held together by springs 11, 12. In a modification, the movable mirror carries a curved spring strip passing through a slot in the supporting casing of the instrument. In a further modification, both mirrors are fixed.
Patent GB-976412-A (GB)
Title: Improvements in flashing light warning devices
IPC: G08B5/38
Filed: 1962-05-28
Abstract: 976,412. Controlling lamps photo-electric. BENJAMIN ELECTRIC Ltd., and G. D. SKINNER. Aug. 28, 1963 [May 28, 1962], No. 20443/62. Heading G1A. [Also in Divisions G4 and H3] SKINNER. Aug. 28, A light device comprises a number of associated light sources operated intermittently so that in the event of failure of one lamp, the device continues to operate with a different visual pattern of light. As described, the unit comprises a transistor multivibrator 40, 41, Fig. 4, the output of which is fed via amplifiers 44, 46 and 43, 45 to lamps 17 and 16 respectively. The amplifiers are gated on and off by a bi-stable circuit 50, 51 which is switched from one state to the other by pulses produced at the outputs of the amplifiers. The resulting gated signals have waveforms 16a, 16b, 16c, 17a, 17b, 17c, Fig. 3 which cause the lamps to flash alternatively. Should one lamp fail, the other continues to flash giving a visual signal at half the previous rate. Transistors 58, 59 may be provided in parallel with transistors 41, 42 so that the circuit will continue to operate in the event of a failure of one of these transistors. The unit is housed in a casing provided with a photosensitive element which switches it on when the ambient light falls below a predetermined level, a removable stop being provided for controlling the amount of light falling on the photosensitive element. The two lamps 16, 17 are arranged behind a common filter or lens and the unit is fitted with a switch which is automatically operated when the unit is mounted on a support.
Patent GB-1189482-A (GB)
Title: Electrical Circuit-breaker
IPC: H01H33/92
Filed: 1967-05-03
Abstract: 1,189,482. Oil blast circuit breakers. SACHSENWERK LICHT - und KRAFT A.G. 3 May, 1967 [22 July, 1966], No. 20602/67. Heading H1N. A circuit breaker of the low liquid content type has a contact rod 2 withdrawable from an arc-quenching chamber 3 into a mechanism housing 1 and coupled to a piston 6 of a pump arranged to deliver to the quenching chamber 3 a volume of liquid equal to the volume of rod 2 withdrawn into housing 1, the piston being subject through pipe 4 to the pressure created by the arc on one side and through linkage 7, 8 to the force on the contact rod 2 on the other, so that the force transmitted to the operating crank 9 is cancelled, and the pump being formed with a damping chamber 11 into which the piston 6 moves at the end of its stroke. Liquid escapes from the chamber 11 by way of recesses 12 of varying depth and width formed in the wall of the chamber; the piston 6 thus controls escape of liquid and constant retardation is achieved. A resilient rubber stop 14 absorbs the remaining kinetic energy. The piston 6 is connected by a tube 15 to an annular piston 16 moving in a second cylinder 17 for damping the dosing movement. The annular piston co-operates with a tapered plug 20 and a rubber stop 24. In a modification (Fig. 2, not shown), a by-pass valve (27) allows rapid closing of the contacts. In another (Fig. 3, not shown), the end of pipe 4 is coaxial with cylinder 5 and damping is achieved by a plug (28) on the end of piston 6 entering the end of the pipe; in this arrangement the liquids in the arcing chamber and mechanism housing cannot mix.
Patent GB-499661-A (GB)
Title: Improvements in or relating to light sensitive electron discharge devices
IPC: H01J43/04
Filed: 1937-07-26
Abstract: 499,661. Discharge apparatus. FERNSEE AKT.-GES. July 26, 1937, No. 20628. Convention date, July 30, 1936. [Class 39 (i)] In a tube in which photo-electrons from the cathode excite a luminescent screen the light from which excites further cathode emission, the electron stream between cathode and screen is amplified by electron multiplication. As shown the cathode is a coating 2 on the half of a spherical envelope 1, and the fluorescent screen 3 is deposited on a conductive coating forming the anode. A series of permeable secondary emitting electrodes 4 with positive potentials increasing towards the anode are provided. A transparent screen 7 biassed to cathode potential separates the two halves of the envelope, and a variable potential, e.g. a carrier wave potential, or a periodic quenching potential may be applied to it. The fluorescence light may affect a further photoelectric cell.
Patent GB-834982-A (GB)
Title: Pulse counter
IPC: G06M1/10
Filed: 1958-06-27
Abstract: 834,982. Counting-apparatus. SODECO, SOC. DES COMPTEURS DE GENEVE. June 27, 1958 [July 3, 1957], No. 20654/58. Class 106 (1). An electromagnetic pulse counter is adapted to actuate a switch after a predetermined number of pulses have been counted. As shown, Fig: 1, pulses to be counted energize an electromagnet 14 whose armature is arranged to drive numeral wheels 13 in subtractive direction by means of an anchor 17 and co-operating gear attached to a gear 19 which transfers motion to the lowest order numeral wheel via a pinion 20 and gear attached to the numeral wheel. Further pinions 20 act as denominational transfer pinions and all the pinions 20 are mounted in a rockable frame 24. On manual depression of a button 25, the counter is set to a predetermined reading by hammers 23 co-operating with heartshaped cams 22, the transfer pinion frame 24 being rocked to disengage the transfer pinions 20. Depression of the button 25 also closes a switch 26 by means of a linkage comprising levers 56, 45, the switch being latched in this position by the engagement of a lug 46 on lever 45 with a nose 47 on a catch 39. A plurality of coaxial cylinders 27 mounted on a spindle 28 mesh one with each of the numeral wheels 13 and each cylinder 27 bears an axial notch 27a so that when the notches are aligned, discs 31 which are spring-pressed against the cylinders 27 fall into the notches 27a. The discs 31 are mounted on a spindle 32 carried by arms 33 fixed to a spindle 34 which therefore rotates to rock the catch 39 which is urged to move with the arms 33 by a spring 38 thereby to release the lever 43 which pivots to open the switch 26. Adjustment of predetermined count, Figs. 5, 6.- Each numeral wheel comprises relatively rotatable sections 60, 63, the outer section 63 bearing the numerals and gear teeth 64. The two sections are interconnected by a jumping coupling comprising two compression springs 66 provided in housings in the inner section 60 and balls 67 urged by the springs 66 against a channelled surface 68 in the outer section 63. To adjust the predetermined count value, the button 25 is held depressed to lock the inner sections 60, and the cylinders 27, Fig. 1, are then rotated manually to drive the numeral wheels until the required count is registered. Since counting takes place subtractively, zero will be reached and the switch 26 opened when the predetermined number of pulses has occurred.
Patent GB-208689-A (GB)
Title: Manufacture of acetaldehyde
Filed: 1923-08-15
Abstract: In the production of acetaldehyde by the catalytic hydration of acetylene, the acetylene is introduced into the reaction liquor at a rate greatly in excess of the rate of combination, that is to say, at a rate which is at least 300 per cent above the amount absorbed.  The reaction liquor may comprise any acid, e.g. sulphuric acid of concentration 3-40 per cent, containing any catalytic material.  The reaction may be controlled and the catalyst maintained in suspension by the excess of acetylene employed.  According to the example, a vessel having an inverted conical bottom is half filled with aqueous sulphuric acid of 20 per cent strength, mercurous sulphate is added, and acetylene is then forced in at the apex of the cone at a rate about 1000 per cent in excess of the combining rate.  The vessel is preferably maintained at a temperature of 50-85 DEG  C., whilst water and fresh mercurious sulphate are periodically added to replace losses. After condensing out the acetaldehyde, the excess of acetylene is re-introduced into the reaction vessel.  The mercury sludge, formed by the reduction of the catalyst, is withdrawn from the base of the vessel and after conversion into an active salt is returned to the reaction liquor.  Specifications 16848/13, 16957/14, and 5132/15 are referred to.
Patent GB-1353772-A (GB)
Title: Process and installation for compacting rubbish
IPC: B65F9/00
Filed: 1971-04-19
Abstract: 1353772 Feeding refuse into containers J FROSSARD 19 April 1971 [2 Feb 1970] 20758/71 Headings B8C and B8E Refuse is fed into a chamber 7 from a hopper 6 and is compacted against a door 13 by a ram 8, the door 13 then being raised and the ram 8 extended into a container 11 to push the compacted block of refuse into the container 11, the bottom of the hopper 6 being closed by an upper part of the ram 8 as the ram advances. The ram is then retracted, the door 13 lowered and more refuse is compacted in the chamber and fed into the container 11. The refuse is tipped from lorries 2 into a ditch 4 and fed by a conveyer belt or pusher to the hopper 6.
Patent GB-614564-A (GB)
Title: Improvements in and relating to fastening devices for folding hoods of vehicles
IPC: B60J7/12
Filed: 1946-07-12
Abstract: 614,564. Vehicle folding tops. BESSONNEAU, M. July 12, 1946, No. 20841. Convention date, Aug. 28, 1945. [Class 108 (i)] A hood for a vehicle is arranged to be unfolded and secured to the top of the windscreen in a single operation by forming the front end of the hood in the form of a bill 1, which has hinged to its lower edge a hooklike plate that may be engaged with beading running along the top of the windscreen. The bill 1 is pivoted to the cant-rails 4 on either side on horizontal axes 3, and its movement about the axes is controlled by a series of links 17, 21 and 32, which are hinged to the hood operating links 26 and 29, disposed between them and the cant-rails 24 and 27, at hinge pivots 19, 24 and 25, which are such as to permit a limited relative displacement of the two link works. The hook is unfolded by power means through reduction gearing rotating a toothed sector and links 40 and 41 secured to the cant-rail 27. A cam 45 acting on a latch 46 is so timed that the latch engages with the notch 48 in a wheel 39 coupled to the toothed sector and in so doing locks the hood after it has been fully extended. Wheel 39 has journalled to it two gear-wheels 49 and 50, interengaged by the internal spring-loaded ball 51 which permits the wheel 50 to rotate relatively to the wheel 49, the teeth of which pass from engagement with the toothed sector as soon as the hood is extended. The driving mechanism is thus able to rotate further and in so doing the forked end of the lever arm 37 engages with pivot 34 at the lower end of the link 32, thus canting the rod 32 about its centre pivot 31 which displaces the links 17 and 21 relatively to the hood folding link 26 by means of their slidable couplings 19, 24 and 25 and so doing locks the hood linkage and also rotates the bill 1 about its axes 3 to engage its hook like coupling with the beading on the wind-shield frame. The driving unit is then de-energized by an electric contact associated with any moving part of the mechanism.
Patent GB-885195-A (GB)
Title: Improvements in or relating to a method of sealing together thickwalled hollow glassobjects
IPC: C03B23/217
Filed: 1960-06-14
Abstract: 885,195. Cathode-ray tubes. PHILIPS ELECTRICAL INDUSTRIES Ltd. June 14, 1960 [June 17, 1959], No. 20850/60. Class 39(1) [Also in Groups XI and XXIII] When sealing preheated sections 1 and 2 of a cathode-ray tube by the passage of an electric current fed through the seal, for example through flames 3, the outside of the seal is cooled by air jets which counteract the tendency to excessive heating in the region of the seal near the outer surface. The parts may be rotated and the jets directed upwardly to restrain any tendancy of the glass to sag in the zone 6 above the seal.