US 1004589 A
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Description (OCR text may contain errors)
J. W. PRIDMORE.
v ARPLIOATION FILED 30V. 8, 1901. 1,004,589. l
Patented-001.. '3, 1911..
COLUMBIA PLANCHA," 0., WMMIMNN. D- C.
UNITED STATES PATENT OFFICE.
JOHN W. PRIDIVIORE, OF CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS, T0 INTERNATIONAL HARVESTER COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION 0F NEW JERSEY.
Specification of Letters Patent.
Application filed November 8, 1901.
To all whom it may concern:
Be it known that I, JOHN W. PRrDMonn,
a citizen of the United States, residing at ery such as harvesters and the like and has for its object to provide a new and improved 'd seat of this description.
My invention is illustrated in the accompanying drawings, wherein- Figure l is a view of a seat embodying my invention as seen from beneath; Fig. 2 is a section on line 2 2, Fig. 1; Fig. 3 is a section on line 3 3, Fig. 1.
Like letters refer to like parts throughou the several figures.
My invention relates particularly to seats for harvesters and the like made of sheet metal, formed by means of dies. Suchseats vent injury thereto when subjected to the strain under which the device is normally used. i
Referring now to the drawings, I have illustrated the seat A formed in any desired manner from sheet metal. At the `point where the seat is to be connected to or support C bears'upon the faces of these bosses, as shown, and the bolt D passes through the seat and the support, The central part of the seat, through which the bolt passes, is not depressed, but is separated from the support by a space D1, due to the dents `in the material, thus forming an upwardly projecting part D2, which provides a secure and strong seat for the head of the bolt. The dents or depressions in the seat are placed close together, and hence the pressure of the head of the bolt is received by the sides D3 of the bosses, which are approximately vertical, (see Fig. 2). It will therefore be seen that this construction very materially strengthens the construction and prevents the bolt head from depressing the metal so as to loosen the bolt. In other words, this arrangement forms a construction where the resistance to the pressure of the bolt head is the crushing resistance of the metal instead of the bending resistance thereof.d I also provide a second series of dents, which are preferably smaller and formed within some of the larger dents, and which form the smaller projecting bosses E, (see Fig. These projecting bosses are so positioned as to engage the support, as shown, and hold it in position When the bolt is tightened, thus preventing lateral movement and permitting the seat to be securely fastened to the support by a single bolt, rivet or the like.
The smaller bosses E are preferably equally spaced, as shown, so that the seat may be given a quarter of a turn in either direction by slightly loosening the bolt and when in this latter position will be firmly lixed in place when the bolt is tightened.
In transporting harvesters from one place to another, it is customary to use a separate truck, which is placed under the machine, the horses being attached to the end of the harvester so that it is moved endwise during such transportation. When the seat herein shown is used, it can be given a quarter of a turn, so that it faces the rend of the ma chine, that is the direction in which it is traveling and this adjustment may be easily and quickly performed by simply loosening the bolt, turning the seat and then tightcning the bolt again. The bosses E fix the seat in either position. It will thus he seen that I have here two series of dents, forming two series of Vseparate and independent bosses of different lengths. It will further be seen that one set 0f bosses engage the face of the support, while the other set engage the edges of the support, and that by this means the central or engaging part of the seat is greatly strengthened and the attachment to the support thus made strong and secure. It will further be seen that by this construction I adapt the seat to the strain to which it is subjected, without using an undue amount of met-al or an excessively thick material and without the addition of any separate strengthening part.
The projecting parts or bosses B, which are provided with the projections or bosses E, may be termed double or two-part bosses or projections, one part of which engages the face 'of the seat support, while the other part engages the edge of the seat support, thus fixing the seat support in position.
It will be noted that the bosses B are separated from each other and from any other indentations. In other words, these bosses may be said to be isolated.
1. A seat comprising a sheet metal piece bent into proper shape 'and provided near its middle with a series of isolated projecting parts or bosses, some of said bosses provided with smaller projecting parts or bosses, a seat support resting upon said first mentioned p rojections or bosses, the smaller Vprojections or bosses engaging the sides thereof, a connecting piece connecting the support with the sheet metal piece, said projections or bosses eccentric with relation to said connecting piece,
2. A sheet metal seat provided at the part where it is attached to its support with a series of separate downwardly projecting circular parts or bosses eccentric with relation to the center of the seat, and formed by dents in the upper surface of the seat, some of said bosses flat on the tops so as to be engaged by the support, one boss at each corner being provided with additional projecting parts or bosses formed by dents of smaller size and which are adapted to engage the support so as to fix it in position.
3. A sheet metal seat provided with a series of separated projecting parts or bosses eccentric with relation to the center of the seat, said projecting parts or bosses formed by dents in the upper face of the s-eat and engaging the face of the support for the seat, some of said bosses provided with smaller projections or bosses formed by smaller dents within the larger dents and adapted to engage the edges of the support so as to fix it in position.
4L. A sheet metal seat, provided with a series of annular projections or bosses eccentric with relation to the center of the seat, formed by dents in the upper surface of the seat, said bosses each provided with an annular smaller projection or boss concentric therewith.
5. A sheet metal seat provided at the part where it is attached to its support with a series of annular isolated two--part projections or bosses one on the other and formed by dents or depressions in the face thereof, one part of said bosses or projections engaging said support when the support is in position, and the other part engaging the sides of the support to fix it in position, said bosses positioned so that the support can be changed from one position to another at right angles thereto.
6. The combination with a seat support of an adjustable seat, a bolt adapted to connect the seat and support, a series of independent,
two-part projections on the seat one on theV other, each projection formed by two dents, one of greater depth than the other, and concentric with the other, each projection having a double engagement with the support, one portion engaging the upper face of y the support, and the other portion engaging the side thereof, and arrange-d to fiX the position of the seat, the projections so positioned that the seat may be changed toface in different directions.
7 A sheet metal seat, provided with a series o-f isolated annular projecting parts or bosses formed about different centers which engage the face of the support for the seat, some of said bosses provided with smaller projections or bosses adapted to engage the edges of the support so as to X its position,
said smaller projections or bosses equally spaced so that they engage the sides of the support either when the seat is facing the front of the machine or the end thereof.
8. A sheet metal seat, provided at the part where it is attached to the support with a series of circular projecting parts or bosses integral therewith, formed by dents or depressions in the upper surface of the seat and which engage thev upper face of the seat support the centers of any two adjacent bosses being separated by a distance greater than the sum of the radii of such adjacent bosses, -a connecting piece adapted to pass through the s-eat and the support and provided with an enlarged end piece which engages the face of the seat, the dents or depressions placed so that the pressure due to the enlarged part of the connecting piece is received by the sides of the bosses, thus utilizing the crushing resistance of the metal in resisting the strain produced by the connecting piece.
9. A sheet metal seat provided at the part where it is attached to its support with a series of circular isolated projecting parts or bosses integral therewith, which engage the face of the support, some of said bosses formed in two parts, one of which projects beyond the other and is smaller in size, said latter projections or bosses engaging the sides of the seat support.
10. A sheet metal seat provided at the part faces, one of Which engages the face of the Where it is attached to its support with two seat support, the other of which engages the series of separated bosses, one series circular edge of the seat support.
`n shape having a at face which engages JOHN W. PRIDMORE. the face of the seat support, the other series Witnesses:
having smaller bosses projecting therefrom WILLIAM WEBBER,
`so as to provide them with two engaging PETER P. COLER.
Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.