Claims
- 1. An unloading system having an unloading front end and loading rear end comprising:
- a two-tiered rail system having a set of parallel feed rails and a set of parallel return rails positioned below said feed rails;
- said feed rails having sections of increased angularity near said front end;
- at least one cart having a load bearing surface adapted to carry a unit load and further including a speed reducer for controlling said cart's descent down said sections of increased angularity;
- said cart further including a support means for attachment of front and rear wheels, said wheels positioned on said cart for rolling engagement with said feed rails and said return rails of said two-tiered rail system;
- a first set of passageways located above said return rails, said first passageways adapted to permit said rear wheels of said cart to move from rolling engagement with said feed rails to rolling engagement with said return rails;
- a second set of passageways located above said return rails, said second passageways adapted to permit said front wheels of said cart to move from rolling engagement with said feed rails to rolling engagement with said return rails; and
- said rail system adapted for said cart to be supported on said sections of increased angularity during the unloading of said unit load.
- 2. The device of claim 1 wherein said sections of increased angularity further include an abrasive surface upon which said wheels of said cart travel, said abrasive surface increases traction of said wheels whereby said wheels of said cart are prevented from sliding down said sections of increased angularity.
- 3. The device of claim 1 wherein said front wheels of said cart are made of a material which increases the traction of said wheels.
- 4. The device of claim 1 wherein said rear wheels of said cart are made of a material which increases the traction of said wheels.
- 5. The device of claim 1 wherein said front and rear wheels of said cart are made of a material which increases the traction of said wheels.
- 6. An unloading system having an unloading front end and loading rear end comprising:
- a two-tiered rail system having a set of parallel feed rails and a set of parallel return rails positioned below said feed rails;
- said feed rails having sections of increased angularity near said front end;
- at least one cart having a load bearing surface adapted to carry a unit load and further including support means for attachment of front and rear wheels, said wheels positioned on said cart for rolling engagement with said feed rails and said return rails of said two-tiered rail system;
- a first set of passageways located above said return rails, said first passageways adapted to permit said rear wheels of said cart to move from rolling engagement with said feed rails to rolling engagement with said return rails;
- a second set of passageways located above said return rails, said second passageways adapted to permit said front wheels of said cart to move from rolling engagement with said feed rails to rolling engagement with said return rails;
- said cart selectively retained on said feed rails during the unloading of said cart;
- said rail system adapted for said cart to be supported on said sections of increased angularity during the unloading of said unit load; and
- a hinged dampener that is located on said rail system, said hinged dampener engages said cart to control the descent of said cart down said sections of increased angularity.
- 7. The device of claim 6 further including a set of transfer ramps which facilitate the transfer of said cart from rolling engagement with said feed rails to rolling engagement with said return rails.
Parent Case Info
This is a divisional of application Ser. No. 08/335,301 filed on Oct. 21, 1994, now U.S. Pat. No. 5,567,103.
US Referenced Citations (7)
Foreign Referenced Citations (2)
Number |
Date |
Country |
1221979 |
Jul 1966 |
DEX |
55179 |
May 1977 |
JPX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
335301 |
Oct 1994 |
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