US 1054942 A
Description (OCR text may contain errors)
P. G. RHOADS & H. A. LBIS. MEANS FOR RETAINING THE WRIST PINS QBRISTONS,
APPLICATION rim-5161i 5. 191a Patented Mar. 4, 1913. I
To allwhamz'tmay-concem: v
Be it known that we, Fos'rnn G.-Ri ioaos,
UNITED sT 'rEs rn runtr OFFICE.
ros'rEa o. nnoans AND mien A. Lars; or DAYTON, OHIO.
missus FOR RETAINING THE wms'r-rm's or rxsrons.
' p Application flledIu and HUGH A. Line citizensjo f the United States, residing at bayton, in ,t egounty of.
Mont omery and State 'of Oh 0, have invente certain new and=""useful .rov'e ments in Means for Retaining-the rist Pins of Pistons and we do declarethe following to be a fu1l,-'cl ear, andexact description of the invention, such as will enable others'skilled in the art to-which it apper;
' tains to make and use the same, reference being had to the accompanying drawings,
and to the, letters and figures of reference marked thereon, which form a part of this specification.
This inventioncomprises retaining means .for the wrist pins of pistons of themternal combustion engine type.
Otherwise expressed, the invention relates to means'for retaining in position the wrist pin which connects the piston rod.
The object of the invention is topro vide and piston 'means of a simplified character which will securely maintain the wrist pin in position and yet may easily be removed when necessary to detach the piston and rod,--and with out requiringthe-aid of specialtools.
-Referring to the drawings, Figure' 1 is a longitudinal sectional view through a piston of an internal combustion engine showing the invention applied thereto; Fig. 2 -is a similar view showin a modification; Fig; 3
is a section on the line'a -a of Fig. 1'; and
Fi ,4 isa section on'the line 6-]; of 2. n the specification and draw1ngs,sim1lar reference characters indicate corresponding parts- Referring in detail to the drawings, 1 represents a piston of an internal combustion.
T engine, the same being provided with inter? I nal apertured bosses 2 for the reception of.
a wrist pin. 3 which also asses through one end of a piston rod 4 and connects the two. Near one end of said pin 3, it is provided with a peripheral ball cavity 10, or. cone cavity 8. In one of the bosses 2 on the interior of the piston, is a pocket 5 which re- Specification of Letters Patent.
n," 5,- 1e12. Serial No. 701,808.
ceivesa sprin' 6'which controls a ball 7, as is shown 1n the pressure offered by the sprin 6. The pressure is sufficient to hold the- -ball' 7 in said. cavity with sufiicient resistance to prevent the pin 3 moving len thwi'se. The reinoved laterally under a force. applied for the purpose. F
In Figs. 2 and 4, a modified form is illus trated, in which a button 9 is substituted for the ball 8. The button 9 is rovided with a conical face which is received by similar formed cavity 10 in .the pin. The action of pin 3, is identical with that of the bal spring 6 is a continuation of the aperture 11 wrist pin may be remove without 'lating said locking member.
" In testimony w ereof we afliiour signs tures, in prese pce of two with. g i IFQSTER c mioansr i nesses I MATTHEW SIIQBLEB the button 9, in holding and releasin the Patented Mar. 4,19 1,3.
igs. 1 and 3.- When thepinl. 4 IS in a normal position, the ball 7 seats in? the shallow cavity 8 and is held therein by 'sistance offered by the ba 17 is not, however, suflicient to prevent the pin 3 being The pocket 5 for the reception of the I 1 0 which lies on one side of the pin. Through said aperture 11, the spring and ball or but-' ton may be easily placed 1npositionbeforev in said pocket engaging said loc ing memv her and maintaining it in enga ement' with v the cavityin the wrist in w ereby said'