US1625881A - Sectional feed roller for woodworking machines - Google Patents

Description

April 26,1927. 1,625,881

w. R. BUSS ET AL SECTIONAL FEED ROLLER FOR WOODWORKING MACHINES Filed July 21. 1924 u I i n l Tnuenfor Wendell RfBuss BL MIumeTfDiok flflor gg Patented Apr. 26, 1927.

UNITED STATES PAT ENT ()FFIQE.

WENDELL R. BUSS AND M. EVERETT DICK, OF HOLLAND, MICHIGAN, ASSIGNORS TO BUSS MAGHINE W'ORKS, OF HOLLAND, MICHIGAN, A CORPORATION OF MICHXGAN.

SECTIONAL FEED ROLLER FOR VIOODWGRKING MACHINES.

Application filed Ju1y-21, 192 1.

This invention relates to feed rollers such as are used in certain types of wood working machinery, particularly wood planers. Such rollsniust have a certain capacity for automatic adjustment for different thicknesses of lumber and unevenness'in thickness and at all times exert pressure against the lumber so as to drive the same through the machine to the knives operating on the same. is a primary object and purpose of the present invention to make a feed roller which is capable of attaining the above named results in a better and more efficient manner than heretofore, one which is durable and which will not get out of order in service, and one which is particularly efficient and practical in all respects for the accomplishment of the ends desired. The construction which we have devised therefor is fully illustrated in the accompanying drawing, in Which,

Fig. 1 is an elevation of the feed roller.

Fig. 2 is a fragmentary vertical longitudinal section therethrough,

Fig. 3 is a side elevation of one section of the feed roller, with a portion broken away and shown in section.

Fig. 4 is a perspective view of one of the inner drive sections of the feed roller, one being used for each outer section and keyed on the driving shaft, and

Fig. 5 is a perspective view of one of the separator plates used between each unit of the feed roller.

Like reference characters refer to like parts in the several figures of the drawin The shaft 1 is a driving shaft which is driven in any suitable manner in the machine to which the invention is applied. On it. a plurality of driving sections are mounted, each including a sleeve 2 adapted to pass over the shaft and a key 1" located lengthwise thereof, so that the said driving sections are positively driven with the rotation of the shaft. A plurality of fingers 3 are formed integrally with the sleeve and extend outwardly therefrom, each on one side being provided with a projection 4 as shown, the purpose of which will later apear.

Around each of the driving sections, a roll section 5 is placed, having an outer curved surface longitudinally ribbed or corrugated for engagement with the surface of a board passed thereunder. Each roll Serial N0. 727,127.

section in the shape of a ring and from the inner sides thereof a plurality of lugs 6 project inwardly. At one side of thesection 5 and the same side of each lug 6 a relatively thin web 7 extends toward the adjacent lug 6 nearly half way itl'iereto, against each lug 6 one'endof a coiledspring S bears the other end of which passes over the projection don the adjacent finger 3, as best shown in l ig. 3.

A circular plate 9 is located between each two adjacent units composed of inner driviug member and outer roll section, the plate having a central opening 9* to pass shaft 1 and a key way for the passage of the key 1, the plates turning with the shaft. This closes in the openings from any possible contact with adjacent unit parts and insures their perfect operation.

It will be noted that the lugs 6 are relatively thin and that. there is a relatively large space between each lug and the finger 8 which cooperates therewith through the medium of the spring 8 interposed between. When the shaft 1 is driven in the direction indicated by the arrow in Fig. 3, there is a tendency to compress the spring 8, and this force tending to compress is transmitted to the lugs 6 with a resultant driving of the associated roll section 5 in the same direction. If the boards passed under the roll sections located in alinementon the shaft are somewhat thicker than the distance between the lower sides of the roll sections and the table below, there is plenty of room to allow the upward movement of the roll sections and the passage of the boards be tween them and the table. This is true also if the boards are uneven in thickness or if there are any small projections thereon in which case only the roll sections in'unedh ately over the projections are elevated. There is also a wide range of movement, comparatively, between the roll and drive sections therefor and little or no liability that the fingers 3 will ever come against the edges of the webs 7. This insures that a steady spring pressure is at all times exerted against the boards fed through under the feed roller and to automatically take care of any irregularities in thickness of the boards.

The assembly of the roller is simple, the roll sections and drive sections therefor being placed over the shaft in the number required. The webs 7 011 any two adjacent roll sections houses one end of each spring 8, leaving sulficient extending beyond to take care of any ordinary conditions arising in feeding the boards. And the sepa rator plates 9 isolate the springs from engagement in contact with adjacent parts of other units. The individual driving sections for the roll sections are features of merit, pern'ii'tting ready repair at any time without having to throw away the entire driving inen'ibers for the entire assembly of feed roll sections. The construction is practical and efficient in every respect and has so proved in practice.

\Ve claim:

In combination, a shaft, a plurality of driving sections mounted in alinement with the shaft and on the same to rotate therewith, each of said sections having a plurality of spaced apart outwardly iextending fingers, a plurality of feed roll outer sections located one around each driving section, each of said outer sections havin a plurality of inwardly extending space apart lugs and a web at one side extending from each lug part way to the next adjacent lug, a coiled spring hearing at one end against each finger and at the opposite end against a lug, the end of the s ring hearing against the lug lying alongsice of the web connected therewith and circular plates keyed to the shaft and located between adjacent driving and feed roller sections, substanti ally as described.

In testimony whereof we ailix our signatures.

VVENDELL R. BUSS. M. EVERETT DICK.

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