US1456171A

US1456171A - Internal-combustion engine

Info

Publication number: US1456171A
Application number: US553495A
Authority: US
Inventors: Millard F Woodward
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-04-17
Filing date: 1922-04-17
Publication date: 1923-05-22
Anticipated expiration: 1940-05-22

Description

May 22, 1923. 1,456,171 M. F. WOODWARD INTERNAL COMBUSTION ENGINE Filed April 1'7 1922 2 Sheets-Sheet l May 22, 1923. 1,456,171

M. F. WOODWARD INTERNAL COMBUSTION ENGINE Filed April 17, 1922 2 Sheets-Sheet 2 Millard F. Mod ward cylinders of engines, which can Patented May 22, 1923.

UNITED STATES man I. WOODWARD, 0F ALEXANDRIA, LOUISIANA.

mrnnner-comnusrron ENGINE.

Application filed April 17, 1922. Serial No. 558,495.

I To all whom it may concern:

Be it known that I, MIILARD F. Wool)- WARD, a citizen of the United States, residing at Alexandria, in Rapides Parish and State of Louisiana, have invented new and useful Improvements in Internal-Combustion Engines, of which the following is a specification.

This invention relates to engines and more particularly to bushings for the cylinders thereof.

The primary objectof this invention resides in the provision of means adapted to abolish the customary practice of reboring worn enginec linders.

Another ob ect of this invention resides in the provision of means adapted to abolish the necessity of disassembling the majority of working elements of an engine to re-establish the original working condition of its cylinders.

A still further object of this invention resides in the provision of bushin for the readily removed when worn and replaced by perfect bushings in the minimum length of time.

With these and other objects in view this invention resides in certain novel features of construction and arrangement of elements to be'hereinafter set forth in the specifica-' tion, illustrated in the accompanying drawings and pointed out in the appending claim.

In the accompanying drawings,

Figure 1 is a vertical sectional view through a conventional form of internal combustion engine with the elements of this invention therein.

Figure 2 is a plan view with the head of the engine removed and the removable bushin in secured position.

Figure 3 is a similar view with the locking rin removed.-

igure 4 is a detail perspective view nf-the upper portion of the cylinder of an engine with the head removed and the elements of this invention in juxtaposition therewith.

Figure 5 is a pers ective view of the removable bushing positioned to illustrate the locking key thereof. 4

Figure 6 is a detail sectional view on line 6-6 of Figure 3.

The-drawingtseshow thbugh it"will understood that the. engine may beprovided with as many cylinders as desired.

opening out into the recess.

but a single cylinder, r

In these views 1 indicates the cylinder, the interior of which is made of larger diameter than the piston 2. At its lower end the cylinder is provided with a beveled seat 3 and at its upper end it is provided with an annular recess 4 and diametrically arranged notches 5 which communicate with the recess. A key slot 6 is also formed in the wall of the cylinder, the upper end of the slot A bushing 7 fits in the cylinder and is engaged by the piston. The lower end of this bushing is beveled, as at 8, to engage the beveled seat 3 and its upper end is provided with a key 9 for engaging the slot 6 so that the bushing cannot turn within the cylinder. The H per extremity of the bushing is reduce diameter, as shown at 10-, this reduced forming a shoulder 11 which will lie art ush with the bottom of the recess 4' when the bushing is in place. I A ring 12 fits in the recess and engages the shoulder 11 and surrounds the reduced part 10. This ring is provided with ears 13 which engage the notches 5 and the ring is held in place by the bolts 14 which extend through the ears and enga e holes made in the cylinder. Thus the ushing will be securel held in place by the ring and it will be he d against rotary movement by the key. When the bushing is worn it is simply necessary to remove t e ring and knock the bushing out of the cylinder. A new bushing can then be put inplace and the ring replaced to hold the new bushing in the cylinder.

By this invention it is unnecessary to rebore a cylinder and the cylinder can be 'restored to its circular shape by si'mpl re-= moving the old' bushing and substituting a new one. Thus the cyl nder can be restored to its true, shape with the minimum amount.

parts, provided that such changes fall within the scope of the appended claim.

What I claim is:--

In combination with a cylinder and its piston, a bushing fitting in the cylinder and engaged by the piston, a beveled seat in the lower end of the cylinder, the bushing having its beveled lower and engaging the seat,

the upper end of the bushing having a regaging the notches, bolts passing through duced part forming a shoulder and the cylthe ears into the cylinder, the upper end of inder having an annular recess at its upper the cylinder having a key slot therein and 10 end, the bottom of which is flush with the a key on the bushing en aging said slot.

5 shoulder and notches communicating with In testimony Wnereof aflix my signature.

said recess, a ring fitting in the recess and engaging the shoulder, ears on the ring en- MILLARD F. WQODWARD.