Yarn wetting device particularly for use in a two-for-one twister
AssigneePalitex Project Company GmbH
InventorRainer Lorenz
Life of this patent
Estimating the term…
Abstract
A yarn wetting device, particularly for a two-for-one twisting spindle assembly, has a reservoir and a porous member which has capillary action and over which yarn is drawn for the purpose of receiving wetting agent or the like which is fed from below by suction from the reservoir to the porous body. In order to ensure uniform transfer of the wetting agent, irrespective of the level of the wetting agent in the reservoir, a line system leads into the reservoir and has an opening which opens into the atmosphere above the reservoir and an opening located at a distance above the bottom of the reservoir, and the reservoir is sealed relative to the atmospheric pressure when the level of the wetting agent in the reservoir is above the bottom opening of the line system.
Claims24
A device for applying a wetting agent to traveling yarn and characterized by the conveyance of a uniform quantity of wetting agent to the yarn even when the amount of wetting agent in said device is reducing;
- said device comprising:
- a reservoir carrying a supply of wetting agent at varying levels therein;
- a yarn wetting means including a porous member having absorbent and capillary qualities and over which the yarn travels for removing wetting agent, and suction means positioned in said reservoir below the wetting agent level for feeding the wetting agent by suction from said reservoir to said wetting member;
- line system means leading into said reservoir and having an upper opening which opens into the atmosphere above said reservoir and a bottom opening located at a predetermined distance above the bottom of said reservoir which opens into the wetting agent;
- and
- said reservoir, said line system and the wetting agent cooperating to provide means for sealing said reservoir relative to atmospheric pressure when the level of the wetting agent in said reservoir is above said bottom opening of said line system means and for transferring constant atmospheric pressure from the surface of the wetting agent to a location below the surface of the wetting agent to ensure that a uniform quantity of wetting agent is fed by said suction means from said reservoir to said wetting member as the traveling yarn removes the wetting agent.
A device for applying a wetting agent to traveling yarn and characterized by the conveyance of a uniform quantity of wetting agent to the yarn even when the amount of wetting agent in said device is reducing;
- said device comprising:
- a reservoir carrying a supply of wetting agent at varying levels therein;
- a yarn wetting means including a porous member having absorbent and capillary qualities and over which the yarn travels for removing wetting agent and suction means comprising a downwardly-extending annular extension of said wetting member formed integrally therewith and of the same material for having absorbent and capillary qualities and being positioned in said reservoir to extend substantially into the vicinity of the bottom of said reservoir below the wetting agent level for feeding the wetting agent by suction from said reservoir to said wetting member;
- line system means comprising a tube leading into said reservoir and having an upper opening which opens into the atmosphere above said reservoir and a bottom opening located at a predetermined distance above the bottom of said reservoir which opens into the wetting agent at a point above the bottom of said annular extension of said wetting member;
- and
- said reservoir, said line system and the wetting agent cooperating to provide means for sealing said reservoir relative to atmospheric pressure when the level of the wetting agent in said reservoir is above said bottom opening of said line system means and for transferring constant atmospheric pressure from the surface of the wetting agent to a location below the surface of the wetting agent to ensure that a uniform quantity of wetting agent is fed by said suction means from said reservoir to said wetting member as the traveling yarn removes the wetting agent.
A device for applying a wetting agent to traveling yarn and characterized by the conveyance of a uniform quantity of wetting agent to the yarn even when the amount of wetting agent in said device is reducing;
- said device comprising:
- a reservoir carrying a supply of wetting agent at varying levels therein;
- a yarn wetting means including a porous member having absorbent and capillary qualities and over which the yarn travels for removing wetting agent, a siphon tube means extending from said wetting member substantially into the vicinity of the bottom of said reservoir below the wetting agent level for feeding the wetting agent by suction from said reservoir toward said wetting member, and an enclosed chamber positioned between said siphon tube means and said wetting member and communicating with said wetting member for receiving wetting agent from said siphon tube and supplying the wetting agent to said wetting member;
- line system means comprising a tube leading into said reservoir and having an upper opening which opens into the atmosphere above said reservoir and a bottom opening located at a predetermined distance above the bottom of said reservoir which opens into the wetting agent at a point below the bottom opening of said siphon tube;
- and
- said reservoir, said line system and the wetting agent cooperating to provide means for sealing said reservoir relative to atmospheric pressure when the level of the wetting agent in said reservoir is above said bottom opening of said line system means and for transferring constant atmospheric pressure from the surface of the wetting agent to a location below the surface of the wetting agent to ensure that a uniform quantity of wetting agent is fed by suction from said reservoir to said wetting member as the traveling yarn removes the wetting agent.
Dependencies are inferred from the claim text.