Claims
- 1. Apparatus for producing frangible salt sticks made up of bonded segments, each segment comprising a predetermined quantitiy of metal salt, comprising:
- a die having a restricted channel therethrough including an entrance portion defining a powder zone, said channel having a length several times its maximum transverse dimension in order to develop frictional resistance at the walls adequate to compress a charge of moldable material as it is forced through,
- means for filling said powder zone with a charge of metal salt powder including a receptable for salt powder having a smooth-walled conduit portion communicating with said powder zone, and stirrer means mounted for rotation about a vertical axis within said receptacle for sweeping salt into said powder zone, said stirrer means including sharp-edged blades sweeping through said conduit portion and engaging the walls thereof,
- and a smooth-faced plunger movable through said powder zone for compressing said charge of salt powder and bonding it as a frangible segment to a salt stick formed by prior charges of salt forced through said channel.
- 2. Apparatus as in claim 1 plus means for snapping off frangible segments from said salt stick as individual pellets.
- 3. Apparatus as in claim 1 wherein said plunger is a tungsten pin having its driving face polished smooth to obtain a plane of weakness where each segment is bonded to the salt stick.
Parent Case Info
This is a division of application Ser. No. 834,115, filed Sept. 19, 1977 and now U.S. Pat. No. 4,170,619.
US Referenced Citations (6)
Divisions (1)
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Number |
Date |
Country |
Parent |
834115 |
Sep 1977 |
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