Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
  • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
  • B67D3/00—Apparatus or devices for controlling flow of liquids under gravity from storage containers for dispensing purposes
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16N—LUBRICATING
  • F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
  • F16N7/02—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with gravity feed or drip lubrication
  • F16N7/10—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with gravity feed or drip lubrication incorporating manually-operated control means, e.g. spindles

Definitions

• the present invention is concerned with an improved dispenser for liquids which is of use in various industries including engineering and horticulture.
• the dispenser may be used to feed lubricating 5. oil to the moving parts of machinery, and to feed treating liquid to growing plants.
• the invention is particularly concerned with the feeding of lubricating oil to the roller-type chain of the chain-and -sprocket wheel drive of a motor cycle.
• a usual dispenser for liquid consists of a reservoir for the liquid, a feed tube extending from a . liquid outlet in the floor of the reservoir, and an outlet valve in the feed tube manually operable to create the desired flow from a nozzle at the end of the feed tube.
• a dispenser for liquid comprising a closed casing, a movable diaphragm in the casing dividing the casing into a vacuum chamber and a reservoir for liquid, a liquid outlet in the , casing, and an outlet valve having a valve member connected to the movable diaphragm so that on drawing and releasing a vacuum in the chamber the diaphragm moves the valve member to ' open and close the liquid outlet.
• the casing is of upright tubular form
• the diaphragm divides the casing into an upper vacuum chamber and a lower reservoir
• a compression spring in the vacuum chamber urges the diaphragm downwards to close the liquid outlet.
• valve member includes a needle portion movable in the outlet opening to vary the flow, and a manually adjustable stop is provided in the vacuum chamber to limit the upward movement of the diaphragm so that adjustment of the stop effects pre ⁇ setting of the valve for different liquid flow rates.
• Fig. 1 is a fragmentary top perspective view of a dispenser having a casing mounted on the tubular frame of a motor cycle to drip-feed lubricating oil to the roller chain of the chain-and-sprocket drive to the rear wheel of the machine.
• Fig. 2 is a sectional detail view in perspective of the dispenser of Fig. 1 showing one form of diaphragm control means.
• Fig. 3 is a sectional detail view showing the discharge of oil from the dispenser feed tube into the roller chain.
• Figs. 4 and 5 are diagrammatic sectional detail views of the dispenser showing an adjustable stop
• Fig. 6 is a sectional detail view in perspective of the dispenser showing an alternative form of diaphragm control means.
• Fig. 7 is a diagrammatic illustration of the -four stages I to IV in the operation of the diaphragm control means of Fig. 6.
• Fig. 8 is a fragmentary top perspective view showing yet another form of diaphragm control means.
• Figs. 9 and 10 are sectional perspective views illustrating the operation of the diaphragm control means of Fig. 8.
• a dispenser for lubricating oil is mounted on a motor cycle to drip- feed the oil to the roller-type chain of the usual chain -and -sprocket drive to the rear wheel of the cycle.
• the dispenser is shown in Fig. 1 and the chain being lubricated is shown in Fig. 3.
• the dispenser consists of a closed elongate casing 1 of rigid translucent plastics material attached by rings 2 and 3 to a frame tube 4 of the cycle, a flexible plastics breathing tube 5 extending from the periphery of the- top of the casing to atmosphere, a flexible plastics suction tube 6 extending from the centre of the top of the casing to the air intake manifold of the engine and tacked to the breathing tube 5, and a flexible plastics feed tube 7 extending from the centre of the bottom of the casing to the chain 8 (Fig. 3) on the sprocket wheel 9 to drip-feed the oil on to the chain at one side of the sprocket wheel.
• the suction tube 6 is connected to the air intake manifold by a screwthreaded tubular spigot 10, while the feed tube 7 is connected to a plate 11 on the cycle frame by a screw clamping means 12 and terminates in a wick 13.
• the casing 1 (Fig. 2) is cylindrical and is closed by top and bottom end walls 14 and 15.
• a tubular guide post 16 extends downwards from a central suction opening in the top wall 14, and a movable di&phragm 17 in the casing divides the casing into an upper vacuum chamber 18 and a lower reservoir 19 for the oil.
• the diaphragm 17 is composed of a central inverted cap 20 loosely slidable on the post 16, and an annular flexible membrane 21 extending between the cap 20 and the periphery of the casing 1.
• a compression spring 22 extends between the lower end of the post 16 and the floor of the cap 20 and serves to urge the diaphragm downwards.
• a tubular suction spigot 23 is slidingly reciprocable in the bore of the post 16 and has a lower end 24 engageable with the floor of the cap 20 to limit the upward movement of the diaphragm 17, and a nipple end portion 25 to which the suction tube 6 is coupled by means of a sleeve 26.
• a nut 27 rot table in the bore of the post 16 engages a screwthreaded portion 28 of spigot 23 and has thereon a finger knob 29 rotatably mounted on the top wall 14 and serving to shroud the joint between the nipple 25 and the sleeve 26. Rotation of the knob 29 effects axial adjustment of the suction spigot 23 to vary the spacing of its lower end 24 from the floor of the cap 20.
• a tubular post 30 extends upwards from avcentral opening in the floor 15 of the casing, and the end wall 31 of the post has therethrough a liquid outlet opening 32.
• the end wall 31 forms the seat of an outlet valve for controlling oil flow through the outlet opening 32.
• the valve member of the outlet valve includes a cap 33 having a skirt 34 slidingly engaging the post 30, a base 35 engaging the seat 31, and a radial wedge shaped web 36 on the skirt 34 having therethrough a passageway 37 sloping upwards and inwards from the periphery of the end wall 15 of the casing to the top of the cap to permit flow of oil into the cap when the valve opens.
• the valve member includes also a tapered needle 38 which slides in the bore of the outlet opening 32.
• a stem 39 connects the base 35 of the valve member to the floor of the cap 20, and the feed tube 7 passes directly ' on to a spigot 40 projecting from the base, the tube being thus readily applied and withdrawn, and the joint between the spigot and the tube being shrouded by the post 30.
• a tubular spigot 41 extends laterally and upwards from an air inlet opening 42 in the casing and has the short breathin tube 5 coupled thereto. Also at the top of the reservoir, an oil filler opening is closed by a removable plug 43.
• Oil is injected into the reservoir 19 under pressure to open the outlet valve and produce a priming flow of oil through .
• the feed tube 7 to the wick 13, and fill the reservoir.
• the dispenser is pre-set for the desired rate of oil drip by rotating the knob 29 to adjust th.e spigot 23.
• the range of vertical movement of the spigot 23 is indicated at D in Fig. 4.
• the setting shown in Fig. 4 gives a minimum flow rate while the setting shown in Fig. 5 gives a maximum flow rate.
• a suitable scale is provided on the end wall 14 to enable fine pre-adjustment of the flow rate.
• the dispenser can operate satisfactoril with the casing 1 in any position between and including the horizontal and the vertical.
• the suction and breathing tubes and the flow-adjusting means are omitted, and the diaphragm is controlled by manually operable means including a resilient pulser bulb 44 closing an open-topped vacuum chamber, and a non-return flap valve 45 provided at the lower end of a tube 46 extending from an opening 47 in the floor of the central cap of the diaphragm and connected to the valve member of the outlet valve.
• the flap valve 45 embodies a bleed opening 48 whereby the vacuum in the vacuum chamber is progressively released.
• L indicates the level of the oil and arrows indicate the oil and air flows.
• the dispenser is in "off” position.
• the ' “bulb 44 has been depressed.
• the bulb 44 has been released, the oil is flowing to the chain, there is a bleed flow through the opening 48, and the bulb 44 is gradually returning to its original form.
• the dispenser has returned to "off" position.
• the pulser bulb is replaced by the suction and breathing tubes and the low-adjusting means of Fig. 1, and a suction device 49 is inserted in the suction tube 6.
• the device 49 comprises a base 50, walling on the base including a resilient bulb 51, a collapsible internal annular wall 52 connected to the bulb 51 to form therewith and with the base a central chamber 53 and an annular chamber 54, and ducts 55 and 56 in the base extending from, respectively, the chambers 53 and 54 to respective- spigots 57 and 58 to which ends of the suction tube 6 are connected.

Applications Claiming Priority (1)

Publications (1)

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ID=10518798

Family Applications (1)

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• 1981
  • 1981-09-07 JP JP50294281A patent/JPS58501715A/ja active Pending
  • 1981-09-07 AU AU75831/81A patent/AU7583181A/en not_active Abandoned
  • 1981-09-07 EP EP19810902471 patent/EP0087408A1/en not_active Withdrawn
  • 1981-09-07 WO PCT/GB1981/000179 patent/WO1983000909A1/en not_active Application Discontinuation
  • 1981-09-07 BR BR8109042A patent/BR8109042A/pt unknown
  • 1981-12-03 AU AU7894182A patent/AU7894182A/xx active Pending

Non-Patent Citations (1)

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