US1421178A - Chain - Google Patents

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Publication number
US1421178A
US1421178A US399644A US39964420A US1421178A US 1421178 A US1421178 A US 1421178A US 399644 A US399644 A US 399644A US 39964420 A US39964420 A US 39964420A US 1421178 A US1421178 A US 1421178A
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US
United States
Prior art keywords
chain
rail
links
link
rollers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US399644A
Inventor
Davis Charles Clarance
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Individual
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Individual
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Priority to US399644A priority Critical patent/US1421178A/en
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Publication of US1421178A publication Critical patent/US1421178A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
    • B65G17/30—Details; Auxiliary devices
    • B65G17/38—Chains or like traction elements; Connections between traction elements and load-carriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/06—Articles and bulk

Definitions

  • My invention relates to certain improvements in conveying, or carrying, chains of the roller type, which travel on rails and pass around sprocket wheels that are driven.
  • the object of my invention is to design the links of the chain so that-the rollers will at all times bear upon the rails, even when the rollershave been reduced by excessive wear, the rollers traveling on the rails on the carrying and on the return runs.
  • Fig. 1 is a-side View of a portion of a chain illustrating my invention
  • Fig. 2 is a sectional view on the line 22, Fig. 1, showing the chain on the carrylng run;
  • Fig. 3 is a sectional View, showing the chain on the return run.
  • the chain consists of a series of links 3 connected together by pivot pins 4, clearly shown in Fig. 1.
  • Each link is made in two parts and the side members are greater in width at one end than at the opposite end so that the side members of one'link overlap the side members of an adjoining link, as clearly shown in Figs. 1 and 2.
  • the chain consists of a series of links 3 connected together by pivot pins 4, clearly shown in Fig. 1.
  • Each link is made in two parts and the side members are greater in width at one end than at the opposite end so that the side members of one'link overlap the side members of an adjoining link, as clearly shown in Figs. 1 and 2.
  • pivot pins 4 are riveted to form heads which retain the links in proper alignment.
  • Each section of each link in the present instance, has a curved socket 5 for the reception of a stick 6, as shown by dotted lines in Fig. 1, on which material can be hung, as, in the present instance, the chain is used for carrying material through a drying apparatus.
  • each section of each link has an extension 7 forming a bearing surrounding the pivot pin 4, as shown in Fig. 2, and mounted on the extensions 7 are the rollers 8, which travel on the rails 1 and 2. It is the usual practice to make the links of the chain so that they are above the upper surface of the carrying rail. The is usually made Specification of Letters Patent. patentgd Jun 27, 1922 1920. Serial No. 399,644.
  • Each link has a depending portion 9, wh1ch extends on each side of the narrow rail 1, as clearly shown in Fig. 2.
  • These portlons 9 tend to retain the rollers in proper positlon on the carrying rail 1, dispensing with other guides and allowing the rollers to hear at all times upon the rail, as the some instances, the chain may be composed of alternated plain and socketed links, and some of the links may have the extensions 8, while other links may be plain.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chain Conveyers (AREA)

Description

Patented June 27, 1922.
c. c. DAVIS.
CHAIN.
APPLICATION FILED JULYZB, 1920.
55 /iwm CHARLES GLARANCE DAVIS, OF RICHMOND, VIRGINIA.
CHAIN.
' Application filed July as,
To all whom it may concern Be it known that I, CHARLES C. DAVIS, a citizen of the United States, residing in Richmond, Henrico County, Virginia, have invented certain Improvements in Chains, of which the following is a specification.
My invention relates to certain improvements in conveying, or carrying, chains of the roller type, which travel on rails and pass around sprocket wheels that are driven.
The object of my invention is to design the links of the chain so that-the rollers will at all times bear upon the rails, even when the rollershave been reduced by excessive wear, the rollers traveling on the rails on the carrying and on the return runs.
In the accompanying drawings:
Fig. 1 is a-side View of a portion of a chain illustrating my invention;
Fig. 2 is a sectional view on the line 22, Fig. 1, showing the chain on the carrylng run; and
Fig. 3 is a sectional View, showing the chain on the return run.
1 is a rail arranged to support the chain on the carrying run. 2 is a rail arranged to support the chain on the return run. The chain consists of a series of links 3 connected together by pivot pins 4, clearly shown in Fig. 1. Each link is made in two parts and the side members are greater in width at one end than at the opposite end so that the side members of one'link overlap the side members of an adjoining link, as clearly shown in Figs. 1 and 2. The
pivot pins 4 are riveted to form heads which retain the links in proper alignment. Each section of each link, in the present instance, has a curved socket 5 for the reception of a stick 6, as shown by dotted lines in Fig. 1, on which material can be hung, as, in the present instance, the chain is used for carrying material through a drying apparatus.
Each section of each link has an extension 7 forming a bearing surrounding the pivot pin 4, as shown in Fig. 2, and mounted on the extensions 7 are the rollers 8, which travel on the rails 1 and 2. It is the usual practice to make the links of the chain so that they are above the upper surface of the carrying rail. The is usually made Specification of Letters Patent. patentgd Jun 27, 1922 1920. Serial No. 399,644.
wider than the chain, consequently, as the rollers wear, the links are allowed to come 1n contact with the upper surface of the rail and to rub on the rail, materially increasing the friction.
y my invention, I design the chain and the rails so that the chain is carried at all times by the rollers, irrespective of the extent of wear.
Each link has a depending portion 9, wh1ch extends on each side of the narrow rail 1, as clearly shown in Fig. 2. These portlons 9 tend to retain the rollers in proper positlon on the carrying rail 1, dispensing with other guides and allowing the rollers to hear at all times upon the rail, as the some instances, the chain may be composed of alternated plain and socketed links, and some of the links may have the extensions 8, while other links may be plain.
' I claim:
1. The combination of a narrow rail; a chain adapted to travel over said rail, said chain consisting of a series of links pivotally connected, the side members of the links belng spaced apart a greater distance than the Width of the rail and extending on each side of the" rail; and a single series of rollers mounted on the pivots of the links of the chain and bearing upon the rail.
2. The combination of a narrow rail; a chain consisting of a series of links piv-. otally connected, each link being made in two parts and forming side members, the side members of each link being spaced apart a greater distance than the width of the rail, each link having an extension at the pivot; a rivet passing through the ex,-
tensions of the links and through the side than the rail, the side members of each linkfloo extending on each side of the rail.
CHARLES CLARANCE DAVIS.
US399644A 1920-07-28 1920-07-28 Chain Expired - Lifetime US1421178A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US399644A US1421178A (en) 1920-07-28 1920-07-28 Chain

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US399644A US1421178A (en) 1920-07-28 1920-07-28 Chain

Publications (1)

Publication Number Publication Date
US1421178A true US1421178A (en) 1922-06-27

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Family Applications (1)

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US399644A Expired - Lifetime US1421178A (en) 1920-07-28 1920-07-28 Chain

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2568649A (en) * 1947-12-24 1951-09-18 Smith Mitchell Chain structure
US3575282A (en) * 1968-01-31 1971-04-20 Cesare Gaiotto Articulated, wheeled chain for industrial conveyors
US3595097A (en) * 1969-02-24 1971-07-27 Kumakichi Araya A chain including link plates having swaged portions

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2568649A (en) * 1947-12-24 1951-09-18 Smith Mitchell Chain structure
US3575282A (en) * 1968-01-31 1971-04-20 Cesare Gaiotto Articulated, wheeled chain for industrial conveyors
US3595097A (en) * 1969-02-24 1971-07-27 Kumakichi Araya A chain including link plates having swaged portions

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