baber/WOPTO huggingface dataset:
Patent GB-401265-A (GB)
Title: Improvements in and relating to sheet feeding mechanism and stencil duplicating and other office printing machines comprising the same
IPC: B65H3/06
Filed: 1932-03-05
Abstract: 401,265. Feeding sheets. PICKING, H. J., 24, Larkswood Road, South Chingford, and GESTETNER, Ltd., D., Neo-Cyclostyle Works, Tottenham Hale, both in London. March 5, 1932, No. 6721. [Class 100 (i).] In sheet feeding mechanism for stencilduplicating and like printing - machines, of the kind which employs a friction separator comprising a pressure member reciprocated in the plane of the top of the pile, the pressure member is mounted in such manner that in feeding sheets of thin paper the forward edge of the member contacts with the sheet while in feeding thick sheets the rear edge will contact with the sheet so that the feed mechanism can be adapted to feed sheets of different thicknesses. The sheets are fed from a magazine 203 by a pressure member 8, Figs. 3 and 5, of approximately the width of a sheet, or by a series of narrower members which are pivoted to a spindle 37 carried by the lower ends of pivoted levers 30 which are carried by a spindle 28 which is reciprocated in vertical guides by an eccentric 26 on a shaft 25. The spindle 28 is mounted in a sub-frame 32 and pins 33 on the levers 30 are pivoted to links 34 mounted on spindles 35 in the sub-frame 32. The spindle 37 is thus caused to move in a plane parallel with the surface of the pile of sheets, and the pressure members 8 separate the top sheet with the aid of sheet-holding members which engage the front edges of the pile. The members 8 may be set as shown in Fig. 3 relatively to their supporting arms 4 for dealing with thick sheets, or by rotating a semi-cylindrical shaft 9 the forward edge of the members 8 may be caused to act on thin sheets. The arms 4 are carried by a horizontal pivot 2 mounted in a yoke 3 which is carried by the spindle 37. The pressure members press on the pile by gravity, but can be moved away therefrom by the action of a triangular member 43 on the shaft 37 of a roller 42 carried by lever 40 actuated by a cam 38 on the shaft 35. The members 8 are connected to the arms 4 by leaf springs 6 and rivets 5. The sub-frame 32 can be moved into the position shown in Fig. 5 in dotted lines in order to move the members 8 out of contact with the pile, and its frame 32 can be looked in this raised position.
Patent GB-549691-A (GB)
Title: Improvements in or relating to vacuum operated servo motor devices
IPC: B60T13/24
Filed: 1941-05-30
Abstract: 549,691. Fluid-pressure servomotor-controlsystems. CLAYTON DEWANDRE CO., Ltd., WILLETT, S. E., and EDGE, S. H. May 30, 1941, No. 6954. [Class 135] [Also in Group XXXIV] Relates to vacuum servomotors particularly for operating brakes, clutches or gears on vehicles and comprising as a unit, the vacuum cylinder, the manual control valve and a casing containing a lever arrangement by which the valve and the brake &c. is operated to prevent access of dust to the valve and cylinder, an air inlet is provided in the casing and is caused to take a tortuous path and to pass over a baffle before entering the valve. The unit shown comprises the cylinder a with its piston b, the control valve e and the lever system disposed in a casing f and to which the pedal rod h, piston rod m and the rod (not shown) leading to the brakes, are connected, the arrangement being such that the piston pressure reacts on the manual control. Air can enter the casing only through an inlet n and is caused to take a tortuous path by reason of the presence of the levers and of a baffle t so as to deposit dust before entering the valve housing e. An opening q in the casing is normally closed by a valve but opens outwardly when the pressure of oil in the casing exceeds a predetermined value. A conduit o may be provided for the entry of air through the inlet n and the other end of this conduit may be disposed above the level of any water through which the vehicle may pass. A louvred screen may be arranged at the inlet n.
Patent GB-539754-A (GB)
Title: Windshield wiper-mechanism for vehicles
Filed: 1940-04-17
Abstract: 539,754. Windscreen wipers. SNELL, S. A. April 17, 1940, Nos. 6967 and 6968. Convention dates, May 1, 1939, and June 21, 1939. [Class 138 (i)] A windscreen wiper is operated by fluid pressure reciprocating mechanism controlled by a valve, the actuation of which is independent of the reciprocating mechanism. As shown in Fig. 2 dual wipers 10 are operated by pistons 32 working in cylinders 16 connected by pipes 18, 20 to a distributor head 22 mounted on the crank casing, the pistons being fitted with bleeder ports 38 and the cylinders connected by a pipe 30. The pipes 18, 20 are connected to a valved chamber 72, Fig. 5, to which is also connected a pressure line 84, an exhaust port 82 being provided. The valve 58 is rotated step-by-step by a ratchet 60, Fig. 4, the operating pawl of which is carried by an arm 66 actuated by a cam 56 on a shaft which is rotated by a turbine wheel 48, Fig. 6, driven by an oil jet 52. The arm 66 abuts against a stop 90 which can be adjusted by a cable 88 to vary the throw or to move the arm to an inoperative position. In a modification the valve is driven directly from the oil pump and the wipers are operated by cable from a piston.
Patent GB-743468-A (GB)
Title: Improvements in or relating to the lubrication of rings and travellers in textile ring spinning or the like frames
Inventor: NESBITT-DUFORT TIMOTHY
IPC: D01H7/62
Filed: 1950-10-12
Abstract: 743,468. Spinning rings, lubricating. FAIRBAIRN LAWSON COMBE BARBOUR, Ltd. March 27, 1952 [Oct. 12, 1950], No. 7026/55. Divided out of 736,775. Class 120 (2). A lubricating system for textile spinning rings comprises a pipe-line extending between a plurality of junction pieces and connected to a source of lubricant, each junction piece being fitted with one or more metering valves, the outlets from which lead to one or more rings and the pipe-line being mounted on or carried by the junction pieces. In the embodiment shown, a T-junction 16 is arranged opposite each ring 4, lengths of pipe 10 connecting the junctions. Each junction 16 is provided on its output side with a metering valve, the outlet from which communicates through a passageway in the ring rail to lubricating channels in the ring. To lubricate the rings pressure is applied either manually or automatically to the oil in the pipe system. Means such as a nipple valve may be provided on the outlet side of the metering valve to permit clearing of the oil passages should they become clogged.
Patent GB-283764-A (GB)
Title: Improvements relating to ships' bulkhead lamp fittings
IPC: F21V31/00
Filed: 1927-03-15
Abstract: 283,764. Chalmers, A. March 15, 1927. Wall lamps. - In a ships' bulkhead lamp of the type including a water-tight lamp compartment 1 having a glazed front 2 and fitted with a packing gland through which the conductors are led to the bulb holder, the packing gland 3 is located on the under side of the lamp compartment and the bulb holder 5 is located in the upper side. The conductors 4 preferably are of the lead-covered type and are car ried around the inner periphery of the lamp compartment and are concealed by the reflector 6.
Patent GB-525984-A (GB)
Title: Improvements in shuttering for concrete floors and the like
IPC: E04B5/32
Filed: 1939-03-04
Abstract: 525,984. Floor centring. GREEN, D. H., and TRUSSED CONCRETE STEEL CO., Ltd. March 4, 1939, No. 7172. [Class 20 (ii)] Floor shuttering of the kind comprising a plurality of beare. oeams 10 and inverted troughs 11 disposed between and parallel with the beams, has the edges of the troughs stiffened by forming them with downwardly directed flanges 12 dished to concave form on the outside. Preferably the troughs are wider at the upper ends of the depending flanges than at the free ends, so that these ends are spaced apart from the sides of the beams while the upper ends contact therewith. The flanges are secured between the sides of the beams and nailing strips 13. The ends of the troughs may be joggled to interfit.
Patent GB-903366-A (GB)
Title: Improvements in or relating to cleaning mineral spirits
Inventor: TAYLOR HARRY
Filed: 1960-03-01
Abstract: The process of the parent Specification is modified in that mineral spirits contaminated with fatty acid salts of aluminium are treated with nitric acid of concentration greater than 50%, the amount of acid employed being considerably in excess of the stoichiometrical amount required to decompose the salt, and the excess of acid required being dependent on the concentration of the nitric acid used; it is preferred to use commercial concentrated nitric acid of about 63% strength.  At 60% strength, the excess of acid required is three times the stoichiometric equivalent, while with fuming nitric acid it is ten times.
Patent GB-1519692-A (GB)
Title: Method of purifying waste water containing organic substances
IPC: C02F1/28
Filed: 1976-02-24
Abstract: 1519692 Purifying waste water COMMISSARIAT A L'ENERGIE ATOMIQUE 24 Feb 1976 [24 Feb 1975] 07251/76 Heading C1C In a process for purifying waste water containing organic substances wherein the water is percolated through a substance which adsorbs the organic substances, the saturated adsorbent is regenerated by passing through the adsorbent a mineral solution containing oligo-elements. The adsorbent substance is preferably activated charcoal. The mineral solution containing oligo-elements is preferably a solution containing compounds of nitrogen, phosphorus, potassium and mineral salts, a preferred solution contains sodium acid phosphate, potassium acid phosphate, magnesium sulphate, calcium chloride, ammonium nitrate and ferric chloride.
Patent GB-545955-A (GB)
Title: Motion-transmitting lever for automatic machine tools
IPC: F16H53/06
Filed: 1941-06-09
Abstract: 545,955. Breaking-pieces for relieving strain in machinery. BECHLER, A. June 9, 1941, No. 7273. Convention date, July 4, 1940. [Class 80 (iv)] In automatic machine tools in which a motion-transmitting lever 6, 7, bears against a cam 8 by means of a feeler 9, the latter is carried by the lever by means of a safety bolt 12 and is guided by a pin-and-slot.14, 15, so that upon abnormal loading the bolt 12 shears. As shown, the bolt is fitted in sleeves 13 supported in side cheeks of the lever 6, 7.
Patent GB-919274-A (GB)
Title: Improvements in yarn retention devices for winding machines
IPC: B65H49/12
Filed: 1961-02-28
Abstract: 919,274. Creels. LEESONA CORPORATION. Feb. 28, 1961 [March 7, 1960], No. 7350/61. Class 120 (2). A yarn winding machine has a yarn gripping member 32, Fig. 1, arranged between two yarn packages P<SP>1</SP>, P<SP>2</SP> such that when the tail end T<SP>1</SP> of package P<SP>1</SP> has been connected to the leading end Y<SP>2</SP> of package P<SP>2</SP> the connected ends can be releasably held by the member 32 to prevent the connecting length from swinging about. When package P<SP>1</SP> is exhausted the winding tension disengages the connected ends from the member 32. The member 32, Fig. 4, may be an axially displaceable but non-rotatable disc resting on a layer of resilient material 30 such as sheepskin, felt or sponge rubber. Specification 704,931 is referred to.
Patent GB-512890-A (GB)
Title: Improvements in or relating to valves for steam engines
IPC: F01L15/10
Filed: 1938-03-10
Abstract: 512,890. Valves for steam-engines. FITZGERALD, G. P. March 10, 1938, No. 7437. [Class 122 (ii)] In an engine having steam parts 2, 2a and separate exhaust parts 1, 1a, a pair of steam valves 5, 5a are mounted on valve rod 9 actuated by Walschaert or other gear and an exhaust valve 8, 8a is slidably mounted between stops 10, 11 on each side of the steam valves whereby the movement of exhaust valves is delayed behind movement of the steam valves.
Patent GB-966111-A (GB)
Title: Improvements in or relating to recording apparatus
Inventor: WILKINS COLIN BERNARD
IPC: G06V30/224
Filed: 1961-03-01
Abstract: 966,111. Automatic character reading. INTERNATIONAL COMPUTERS & TABULATORS Ltd. Feb. 9, 1962 [March 1, 1961], No. 7457/61. Heading G4R. A visually readable character is formed with coded gaps 8 lying at an angle across the character for co-operation with a sensing device aligned with the angle of the gaps to sense the character as it is passed underneath thereby to derive signals from which the character can be identified. The characters may move vertically or horizontally under the sensing head. By altering the angle adjustments can be made for different speeds of movement in the two directions e.g. if the gaps are placed at an angle of 60 degrees a vertical speed of approximately twice the horizontal speed will give signals at the same bit frequency. The characters may be printed by a typewriter with special type faces or by a type wheel. Ordinary ink may be used, to be sensed photo-electrically or magnetic ink to be sensed by a magnetic head or conductive ink to be sensed by contact brushes. Specifications 785, 605 and 874, 684 are referred to.
Patent GB-1218606-A (GB)
Title: Differential thermal analysis sample cell
Inventor: HARDEN JOHN CHARLES
IPC: G01K3/14
Filed: 1968-02-15
Abstract: 1,218,606. Thermocouples. E.I. DU PONT DE NEMOURS & CO. 15 Feb., 1968, No. 7555/68. Heading H1K. [Also in Division G1] A differential thermal analysis cell consists of two receptacles the walls of which consist of a first metal, connected by a member to which a first lead is attached, and second and third leads attached to the respective bases of the receptacles, the first lead being of the first metal while the others are of a second metal so as to constitute a differential thermocouple. In one embodiment the receptacles are tubes connected by a wire. Alternatively they are recesses in a metal block or sheet which constitutes the connection between them. The two metals, which are preferably copper and constantan or chromel and constantan may be joined by silver soldering. In all cases the receptacles are 0À25 to 1 inch long, have an internal diameter of 0À03 to 0À1 inch and are no more than 0À5 inch apart.
Patent GB-362270-A (GB)
Title: Improvements in or relating to wireless receiving apparatus
IPC: H03G3/16
Filed: 1931-03-11
Abstract: 362,270. Wireless receiving apparatus. LORENZ AKT.-GES., C., 1, Lorenzweg, Tempelhof, Berlin. March 11, 1931, No. 7562. Convention date, March 11, 1930. [Class 40 (v).] In a wireless receiver the volume of selected stations is restricted by a device coupled to the tuning member so that a reduced energy level is applied to any desired stage of the apparatus when the tuning is adjusted to one of the selected stations. The Figure shows a switch the arm 3 of which is arranged to be operated by the tuning condenser spindle and to short-circuit portions of the aerial circuit inductances 5, 6 used for short and long waves respectively. In a modification, Fig. 3 (not shown), damping resistances are connected in parallel to the tuned circuit. Alternatively the volume control may be by a metal screen or short-circuited coil moved relatively to the aerial coupling coil, or may be arranged to include rejector circuits in the aerial circuit. Means may be provided to adjust the energy limiting devices, e.g. the long and shortwave contacts may be adjustably mounted in concentric arcuate slots. Alternatively a number of interchangeable base members carrying contact studs may be provided. The volume control may comprise a potentiometer applied to the lowfrequency amplifier.
Patent GB-231189-A (GB)
IPC: D06P1/28
Filed: 1925-03-20
Abstract: In dyeing textiles, particularly cotton, mercerized cotton, viscose &c., by means of the esters of leuco vat-dyes described in Specification 186,057 the affinity of the fibre for the said esters is increased by adding to the bath a salt such as common salt or Glauber's salt, which lowers the solubility of the ester-salts.  The development is then effected as described in Specifications 203,681, 212,546, 218,649, and 220,964.  In an example viscose is dyed in a bath containing the sodium salt of the sulphuric ester of leuco indigo, sodium nitrite, and Glauber's salt, and developed in dilute sulphuric acid also containing Glauber's salt.  The effect of the salt addition varies with the fibre.
Patent GB-689941-A (GB)
Title: Improved piping assembly stand
IPC: B25H1/00
Filed: 1951-04-02
Abstract: 689,941. Soldering; welding by fusion. FISCHER AKT.-GES., G. April 2, 1951 [April 4, 1950], No. 7614/51. Class 83 (iv). A support stand for piping to be soldered or welded comprises a rod-like element carrying a plurality of axially slidable discs each having notches in its circumference which may be aligned on the different discs. In an embodiment a square rod 1, Fig. 1, is supported on a base by a member 5 and has discs 2, each with eight notches, Fig. 4, mounted thereon. A central hole 4 having eight corners allows different mounting positions. A further square rod at right angles to the rod 1 may be slidable in an axial direction or pivoted thereon and carries discs 2. Piping 8 with connectors 7 is supported in the notches and is held by a forked arm 13 on a member 9. In a modification the rod is replaced by a grooved tube 16, Fig. 5, which carries a forked arm member and discs 18 which have spring-urged pins 20 to engage the grooves. The forked arm 28, Fig. 9, may be provided on a member having a friction fit on a grooved tube 16 by means of a spring-pressed split tapered bush 29.
Patent GB-418890-A (GB)
Title: Improvements in or relating to gramophones
IPC: G11B19/265
Filed: 1934-03-10
Abstract: 418,890. Gramophones. VORWERCK, W., 6, Elisabethstrasse, Kothen-Anhalt, Germany. March 10, 1934, No. 7634. [Class 40 (ii).] A mechanism for giving constant tracking- speed comprises a lever 4 linked at 3 to a collar 2 on the tone-arm 1, and slotted at 5 so as to be guided by a fixed pin 6, during movement of the tone-arm. The free end 17 of the lever 4 engages a fixed but adjustable cam 18, whereby a predetermined angular movement of the lever about the pin 6 is effected, this angular movement being utilized to actuate a tappet 8 guided in a fixed slot 9 to control a brake-pad on the governor gear. A spring 7 fixed at one end and attached to the lever 4 at the other end, applies a varying moment about the pin 6 to relieve side pressure of the needle on the record grooves, occasioned by the reactions of the cam. The constant tracking-speed mechanism may be rendered inoperative by a cranked lever 12, pivoted at 11 and linked at 13 to the plate 14 carrying the cam 18, movement of this lever in a clockwise direction causing the cam 18 to be withdrawn from the lever 4, and causing a cam at the end of the part 10 of the lever 12 to position the tappet 8 to give the required constant speed of revolution of the turntable.
Patent GB-817804-A (GB)
Title: Improvements in and relating to flame-proof electric switchgear
Inventor: BEASLEY JAMES
IPC: H01H9/04
Filed: 1956-03-12
Abstract: 817,804. Two-part couplings combined with switches. METROPOLITAN - VICKERS ELECTRICAL CO. Ltd. June 12, 1957 [March 12, 1956], No. 7663/56. Addition to 727,664. Class 38 (1). [Also in Group XXXVII] In a modification of the flameproof switchgear described in the parent Specification, the casing 6 carrying the socket 20 and enclosing the isolating switch 14 by means of which the socket may be connected to the battery, also encloses a control switch connected in a pilot circuit controlling the energization of a charging cable, the two switches being interlocked so that the isolating switch can be operated only when the control switch is " off " and the control switch cannot be closed when the isolating switch is open. The control switch comprises fixed contacts 201, 202 and a bridging contact 204 spring-urged towards the fixed contacts and moved away from them by a tappet 210 carried by a pivoted arm 207 carrying a roller 217, the arm being urged by a spring 207a so that the roller engages a notched cam 214 carried by the switch-operating spindle. In the position shown, the control switch is open, the roller 217 engaging a notch 217 in cam 214, and an attempt to close the switch by turning cam 214 anticlockwise will cause a lug 219 on arm 207 to engage the surface of an interlocking sector 220 carried by the operating spindle 9 of the isolating-switch 14 which is shown in the open position. Closure of the control switch is thus prevented. If, however, the isolating switch occupies either of its " test " or " run " positions, with a plug inserted in socket 20, one of two notches 221, 222 in the sector 220 will be aligned with the lug 219, thus permitting pivotal movement of the arm 207 by the cam 214. In the closed position of the control switch, roller 217 engages a shallower notch 215 in the cam which holds the tappet 210 raised and allows the contacts 201, 202, 204 to close. With the lug 219 occupying either of the notches 221, 222, the isolating switch cannot be moved without first opening the control switch.
Patent GB-880944-A (GB)
Title: Improvements in or relating to variable-frequency radiosondes
IPC: G01L9/00
Filed: 1960-03-04
Abstract: 880,944. Variable-frequency radiosondes. OY, V. March 4, 1960 [March 5, 1959], No. 7683/60. Class 40 (1). In a radio-sonde, the frequency of the transmitting oscillator is varied in accordance with the measured variables by causing the devices sensitive to the latter to move a non-magnetic plate b in relation to a preferably flat inductor a in the resonant circuit. This improves the linearity of the movements of the recording pen with the quantities recorded. Suggested measurements are temperature pressure and humidity, the respective transducers being connected up in turn.
Patent GB-539531-A (GB)
Title: Improvements in and appertaining to coal tongs and the like
IPC: B25B9/00
Filed: 1940-04-30
Abstract: 539,531. Coal tongs. GROSSMITH, A. R. April 30, 1940, No. 7696. [Class 61 (ii)] Coal tongs &c. comprise a pair of gripping jaws 7 slotted at 17 to engage pins 6 on bifurcated arms 10 at one end of a tubular shaft 4 fitted with a loop handle 1, which jaws are actuated by another loop handle 3 and central rod, wire &c. 8 pivoted to the jaws at 16, a coil spring 9 in the tubular shaft 4 normally holding the jaws open.