US1424090A - Feeding chain for woodworking and other machines - Google Patents

Description

FOSTER AND F. H. CLEMENT.

|.. s., M. G., AND B. H. CLEMENT, EXECUTOHS OF P. H. CLEMENT, msc'n. FEEDING-CHAIN FOR WOODWORKING AND OTHER MACHINES.

Patented July 25, 1922.

APPLICATION FILED. MAYZ], 1919- WIT IVESSES:

aieaierzimter e ATTORNEY UNE'E'ED STATES PATENT @FFlCE.

CHESTER B. EosTER AND FRANK H. CLEMENT, OF ROCHESTER, NEW YORK; LOUISA s. CLEMENT, MARY e, CLEME T, AND BENJ'. n. CLEMENT, EXECUToRs OE SAID FRANK II, CLE ENT, DEC ASED; SAID ExECUToRs ASSIGNORS on THE ENTIRE RIGHT OF SAID ERANK I-I. CLEMENT. DECEASED, To AMERICAN WOODWORKING M CHINERY COMPA OF ROCHESTER, NEW YORK, A C R- ORATION OF PENN- SYLVANIA; SAID EosTER AssIeNoR E HIS ENTIRE RIGHT To AMERICAN woon- WORKIN MACHINERY COMPANY, OF ROCHESTER, NEW YORK, A CORPORATION 013 NEW/V YORK.

EEEEINe'eIIAIN EOR wOOnwoRKINcr AND QTI-IER- MACHINES.

Application filed May 27,

in Feeding Chains for WVoodworking and Other Machines, of which the following is a specification.

Our invention relates to that type of feeding chains which is required'for fast andaccurate work, and carries positive feeding dogs or lugs at intervals along the working face, and it has for its object to provide a simple, strong and durable feeding dog of this nature that may be accurately and positively adjusted both with reference to advancing or retarding the point of feeding contact and the extent of the engagement had with the work-piece. Asapplied to a feed chain for woodworking machinery, the

invention contemplates the use of a longitudinally adjustable block fitted to the main links to which block is attached a disappearing feeding dog. r

To these and other ends the invention resides in certain improvements and combinations of parts all as will be hereinafter more fully described, the novel features being pointed out in the claims at the end of the specification.

In the accompanying drawings, Fig. l is a plan view of a fragment of a feeding chain constructed in accordance with and illu trating one embodiment of our invention: Fig. 2 is a sectional side elevation: Fig. 3 is a cross section of a main link and track: Fig. 4 is an elevation of the adjusting eccentric and Fig. 5 is a cross section and Fig. 6 an end view of the same.

Heretofore positive feeding chains have been made with main links and connecting links, said main links carrying feeding dogs secured rigidly thereto: for common work not requiring accuracy this construction answers, but where it is required to adjust the dogs longitudinally or to have certain dogs disappear below the working face of the chain for the feeding of the wide stock,

Specification of Letters Patent.

Patented J uiy 25, 1922.

1919. Serial No. 300,14

what we accomplish in the within described construction. I I

The main links A, Figs. 1 and 2, are preferably made'of malleable or steel castings and are boX shaped. as indicated in Fig. 8, consisting of the twosides l0 and tie bars 2 and 6; this latter bar should be apart of the casting thus attaching the sides 10 together, making the link a unit. Tie bar 2 1s necessarily a separate piece as hereinafter described and it would be possible to make up the links by securely attaching tie ban 6 to the sides 10 by screws or other equivalent means.- The links A' are carefully machined inside and out, and a sliding block C is fitted to move freely but closely inside the box thus formed. Tie bar 2 is a separate. piece secured rigidly to the sides 10, but removable therefrom and it contacts with the block 0 and holds it in position against any thrust caused by the feeding of the stock to the cutter or tool used in the machine. Tie bar 2 canthus be removed to permit the assembling jor unassembling of the link, the sliding block and the adjusting eccentric describedbelow. The outside machining of the links A is for the purpose of guidingthem'in a track E, Fig. 3, to which the links are carefully fitted and thus accuracy of operation of the chain in a straight line is ensured. B are the connecting links which may be of steel castings or of bar steel cut to length and properly machined to fit between the sides 10 of the main links and be jointed thereto by pins 3.

To the end of the block C we attach a positive feeding dog D, which when working projects above the working face of the chain, as shown in Fig. 2. This dog may be attached to the block in any suitable manner, but for simplicity and directness we prefer to use a clamping screw 11, Figs. 1, 2, 3, threaded into the block and passing through a slot 12, Fig. 3, in the dog; this clamp screw is manipulated by a wrench fitted to its hexagon head, andclearances 8, Figs. 1 and 3, are formed in the sides 10 of the links, permitting the swing of the wrench. Thus the dog D may be readily loosened and adjusted vertically or dropped below the working face of the chain as shown in dotted lines in Fig. 2 when wide or long stock covering more than one or more of the links is required to be run through the machine.

To fulfill the other function required of the block C, viz: longitudinal adjustability, we provide an eccentric 4, Figs. 2 and l, the ends 1 of which are fitted into bearings bored through the sides 10 of the main links and the central or eccentric portion accurately fitted into a slot 5 in the sliding block C. Means for revolving the eccentric are provided such as a screw driver slot in each end as seen in Fig. 6, or the ends may be fitted to a socket wrench. It will be noted that in order to assemble or dissemble the block C and eccentric 4 from the main links it is necessary to remove the tie bar 2, but tie bar 6 is preferably a unit with the main link, principally for construction purposes;

It is evident from the preceding description that the feeding dog D is capable of vertical adjustment for thick and thin stock, and for disappearance out of action for wide stock and furthermore where two or more feeding chains are used together for long stock as is frequently required, one or both dogs and blocks can be adjusted longitudinally whereby the cutting can be done absolutely square with the driven edge of the stock. lVe do not intend to confine ourselves to the exact means shown for adjusting the block C or the feeding dog D because other equivalent devices might be adapted to pro-- cluce similar results; neither do we intend to be confined to the location of the sliding block and dog internally to the main links, as it might be feasible to attach these parts or equivalent parts to suchlinks upon their working face or otherwise, and produce similar or identical results; but

What we claim as our'invention and desire to secure by Letters Patent is- 1. The combination in a feeding chain of a main link, a block fitted to slide longitudinally in said link, a feeding dog made vertically adjustable on the sliding block and means for positively adjusting the sliding block longitudinally in the main link.

2. In a feeding chain the combination with a main link and a sliding block mounted therein, of a feeding dog positively attached to the block, constructed to be vertically adjustable thereon and to drop below the line of the working face of the chain and means for adjusting said sliding block longitudinally in the link.

3. In a feeding chain the combination with a main link and a sliding block mounted between its sides, of tie bars, one of which is removable, secured between the sides of the link for guiding said block.

at. In a feeding chain the combination with a main link, of a sliding block fitted therein, means for adjusting said block lon gitudinally of the link, and an adjustable feeding dog clamped to the block provided with a slot therein to receive a clamping screw to permit the disappearance of the dog below the working face of the chain link.

5.1n a feeding chain the combination with a main link, of a sliding block mounted therein, an eccentric having bearings in the link and arranged to adjust said block longitudinally, a feeding dog clamped to the block and provided with a slot therein to receive a clamp screw whereby the dog may be vertically adjustable and the sliding block and dog receive a definite longitudinal adjustment.

6. The combination with a feed chain link, of a slidable block fitted between the sides of said link, guides for limiting the movement of the block in asubstantially longitudinal direct-ion, and an actuating means operable from outside the link for positively adjusting said block longitudinally.

CHESTER B. FOSTER. FRANK H. CLEMENT.

Witnesses LOUIS G. CONNER, C. S. RICHMAN.

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