US1335407A - Construction for beams - Google Patents

Description

w. TUTTLE.

CONSTRUCTION FOR BEAMS.

APPLICATION FILED MAR. 5, l9l8.

1,335,407; mama Mar. 30,1920.

UNITED STATES PATENT OFFICE. 1'

WALTER I. TUTTLE, 0F PROVIDENCE, RHODE ISLAND, ASSIGNOR T0 FRANK MOSSBERG COMPANY, OF ATTLEBORO, MASSACHUSETTS, A CORPORATION OF R-I-IODE ISLAND.

CONSTRUCTION FOR BEAMS.

Application filed March 5, 1918.

To all whom it may concern:

Be it known that I, WALTER I. TUTTLE, a citizen of the United States, and a resident of Providence, in the county of Providence and State of Rhode Island, have invented an Improvement in Construction for Beams, of which the following is a specification.

This invention relates to the construction of warp beams and the like. One of the objects of this invention is to provide a simple and practical. beam construction of great durability. Another object is to provide an improved construction of the above type in which the working and otherv stresses are so distributed as to insure a high degree of rigidity and strength without impairment of eflicient action. Other objects will be in part obvious and in part pointed out hereinafter. I

The invention accordingly consists in the features of construction, combinations of ele-' ments and arrangement of parts which will be exemplified in the structure hereinafter described and the scope of the application of which will be indicated in the appended claims.

In the accompanying drawing, in which is shown one of various possible embodiments of thisinvention. v

Figure 1 is an end view;

- Fig. 2 is a sectional v1e w taken along the line 22 of Fig. 1 and Fig. 3, and, 1

Fig. 3 is a section taken alongthe line 3-3ofFig.2. f Similar reference characters refer to similar parts throughout the several views of the 5 drawing.

Referring to Fig. 2 .of'the drawing there is shown a cylinder 1010f the warp beampreferably ofa built-up construction and composed of the longitudinallyextending wooden members 11 suitably secured circumferentially abouta heavy wooden cylinder or abutment 12. The elements 11 ofthe "cylinder 10 are sec'ured'to the abutment l2 pref-. erably by means of spikes or screws. Passing co-axially through the cylinder 10 and through the abutment 12 is a shaft 13, and while only a section of one end of thewarp beam is shown in Fig. 2, it is to be understood that the end and head construction of this warp beam is identical at both ends. The shaft 13 passes through anabutment similar to the abutment .12 at the opposite end of the cylinder-'10. Itm'ay be noted.

Specification of Letters Patent.

Patented Ma1n30, 1920.

Serial N0. 220,485.

'here that the term cylinder is used throughout broadly to denote any equivalent part in warp beam construction, the cylinder '10 herein described being the preferred embodiment of this invention.

Recessed in the outer surface at the end of the cylinder is a stress distributing mem ber 14 composed preferably of a heavy sheet metal of like cylindrical form a d having its ends joined preferably by means of a riveted butt-joint 15. The member 14 is recessed in the cylinder 10 to such an extent that its outer surface will substantially coincide with the surface of the cylinder 10 so that the latter will besubstantially uninterrupted and is secured thereto by means of screws 16 which are counter-sunk within the member 14 so as to leave the outer surface of the lat ter smooth and unbroken. The screws 16, by which the-member 14 is secured to the cylinder 10, areuniformly distributed both circumferentially and in an axial direction for a purpose to be hereinafter described in Mounted-upon the shaft 13 isa cast abut ment 18 bearing against the central wooden abutment 12 andheld against rotation with respect to the latter by means of the spurs 19. The cast abutment 18 provides an outer bearing surface 20, which is preferably in :the plane of the bearing surface 17 at the end of the cylinder.- Bearing against the surface 20 of the cast abutment 18 is a cast hub member 21 mounted upon the shaft and adjustably held lILPOSltlOIl with respect to the bearingsurface 20 by means of the ,loeknuts 22 on'theshaft 13. I r

Extending, outwardly from the cast hub 21: and integral therewith isa flange 23 to which is secured a sheet metal ,head member 24 as by rivets 25. The head member 24 is substantially annular inform andhas extending through its central opening that portion of the h'ub'21 which engages. with the bearing surface 20 onthe cast abutment against the flange 23' and in which annular depression are applied the rivets 25. Extending in aradial direction and from the annular depression is a seriesof radial ribs 18. The head member 24 has its entire central portion stamped outwardly to form an annular depression which rests evenly 26, which are stamped outwardly into the plane of the annular depression, hereinbefore described.

The head member 24 bears evenly against the composite end surface 17 of the cylinder, and the flange 23 extends outwardly to a sufficient extent so that it securely grips and holds the head member 24 in bearing position against the surface 17 The flange 23 engages the radial ribs 26 at their outer surface and transmits both directly and through them any desired degree of gripping or supporting pressure with whichthe sheet metal head member is held in frictional contact with the end surface 17 Any desired degree of gripping pressure may be exerted by means of the adjustable lock nuts 22, whereby the frictional contact between. the head member 24. and the cylinder end surface may be variedat will.

A belt race 27 may be formed in the outer edge portion of the head member, 24 extending beyond the cylinder 10.

In order that the action offlthe construction above described may be better understood, it is pointed out that a wooden bar'- rel or cylinder possesses many advantages in beam construction but ,is susceptible to injury which renders it substantially use less. "Obviously the end of the cylinder must fitsnugly against the adjacent head, or threads of the warp at the end will enter the crevice and become entangled therein. Also. the projecting portions of the cylinder beyond abutment 12 must be able-to stand considerable stresses whilesubjeeted to various incidents in their use not only when filled but when, as is often the case, piled one upon the other with the heads overlapping and thus subjected to an inward crushing stress; By a device such as that herein described, the pressure of the head even-though unevenly applied is uniformly distributed throughout the end of the cylinder. Also, the outer surface of the cylinder at its'ends being provided with the member 1st which may act as a tension member,

prevents an inward crushing of the parts .with a tendency toopen acrevice between the cylinder and the adjacent head.

It will thus be seenthatby theuse of 7 device which may be of any suitable material 'and which maybe considerably modified in form, the beam is rendered well adapted to stand up under hard conditions of use and maintain a smootheven surface snugly fitting ragainst the ad acent head.

As various possible embodiments might be made of theabove construction and as various changes might be made in the enibodiment above set forth, itis to be understood that all matter herein set forth or shown in the accompanying drawings is to be interpreted as illustrative and not in a limiting sense. a

What I claim is:

1. In a construction of the class described, in combination, a hollow wooden cylinder member built up of a plurality of longitudinal sections, a supporting abutment fitted within said cylinder and. spaced from the end thereof, a head member secured against the end of said cylinder, and a flat annular member fitted about said cylinder sections and extending from over said abutment to the inner surface ofsaid head, said a shaft passing centrally through said shell,

a head casting on said shaft resting against said abutment and extendingoutwardly to support the outer surface ofsaid sheetmetal head member opposite its engagement with the end surface of saidshell, means .on said shaft for forcing said head casting against said abutmentv and grip said head member between itself and said cylinder, and means mounted on said shell for receiving and dis tributin-g stresses transmitted from said head member.

" 3. In a constructionofthe class described,

ii -combination, a hollow wooden :cylinder and a head member and a supporting memeber within said cylinder and spaced from said head member whereby the endoffsaid cylinder projects beyond the said supportingrmember, means adapted to hold said head member against the end of'said cyle inder, anda sheet metal cylinder device set into the outer surface of said cylinder over said supporting member and extending to said head member.

testimony whereof I have signed my name itothis specification this 25th day of February, 1918.

' WALTER IQTUTT E,

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