US1484267A - Engine cover - Google Patents

Description

Feb. 19, 1924. 1,484,267 Y W. W. HULL ET Alf.

ENGINE COVER Fild Aug. 25. 1925v 1 I QMMJ OW -M'//iam W Hall Charles Patented set. is, teat.

WILLIAM w. HULL AND cnnnnns n. ULL, or DENVER, coLoItAno ENGINE COVER.

Application filed. August 25,1923. Serial No. 659,406.

To all whom it may concern Be it known that we, WILLIAM W. HULL and Cr-mmns H. Home, citizens of the United States, residing at Denver, in the city and county of Denver and State of Colorado, have invented certain new and useful Improvements in Engine Covers; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this specification.

This invention relates to a protective cover or casing for internal combustion engmes.

Internal combustion engines of the type employed in automobiles are constantly exposed o dust and dirt, since the cooling fan blows a stream of dusty air over it at all times. Where the engine is constructed in such a manner that the engine get-s oily on the outside, the dust will adhere thereto and accumulate until it forms a layer of considerable thickness. Engines that are provided with overhead valves in the head, which are operated by levers of the walking beam type, are especially subjected to oily surfaces which accumulate dirt, as the mechanism requires lubrication and some of this l .bricating oil is always getting onto the engine surface.

As a well known type of theengine construction to which we refer, we will call attention to the engine employed in Chevrolet automobiles. The push rods extend up along one side of the engine block and the levers and valves are carried by the cylinder head. It is found from experience that one side of this type of engine will remain dry and clean, while the other side is wet with lubrieating oil and dirty.

Cur invention, briefly described, consists of applyin to an engine of the type referred to a sheet metal cover which entirely encloses the side which carries the push rods and enclosing the rocking levers and valve stems by a casing that fits snugly against the upper surface of the cylinderhead and cooperatively engages in a suitable groove along the upp'eredge of the side casing.

(Fur invention can be best explained by means of a drawing and reference will therefore be had to the accompanying drawing in which our invention in its form is shown, and in which:

Fig. 1 is a perspective view of an engine equipped with our protective casing, a por' tion of the casing being broken away.

preferred Fig. 2 is a transverse section of the casing in assembled relation, but removed from the engine. 1 5

Fig. 3 is a section taken on line 2-2, Fig. 1; and 5 Fig. tie a drawing showing the stud bolt employed by us. in securing the casing in place;

The cylinderiblock' is designated by m meral 1 and the cylinder, cap by numeral 2,

while 3 indicates the push rods which form 4 part of the mechanism, by means of which the cams operate the valves. The valve stems 4- project through the cylinderhead and have a spring seat 5 secured in place thereon. A spring 6 surrounds the valve stem and abuts its ends against the cylinderhead and the seat and holds the valve resiliently in closed position. Arod 7 is mounted in suitable brackets on'the cylinderhead and has pivotally mounted thereon a number of rocking bars 8, one end of each of which contacts with the end of a valve stem and the other end contacts with the upper end of a push rod, all in the manner old and well known.

edge of the side and ends is bent downwardly on the outside and then bent upwardly, as indicated at 15, so as to form a gutter. Theupper edge of the outerwall 15 of the gutterterminates below the upper edge of the inner wall so that if the gutter becomes fullof water, none of the .water will flow down on the inner surface of the casing member.

- This member 7 sponding tothe exhaust opening and openings 18 corresponding to the openings for'tlie bolts 10, and is clamped between the cylinderhead and the exhaust pipe in the manner.

shown in Figs. 1 and 2. an openinglE) is provided near the bottom for the gas control rod. When the casing member; just de'- has an opening 17 correscribed is clamped in place, the edges of the end pieces 12 and 13 fit snugl against the side of the engine and the bottom fits against the upper surface of the crank casing 20. For the purpose of enclosing the rocking bars 8 and valve stems 4 and other cooperating partsathat are on top of the cylinderhead; we providev a boXlike-casing member having a top 21, sides 22 and ends 23. The edges of the sides and ends are folded back, as shown at 24 in Figs. 2 and 3. Two stud bolts 25 are secured to the cylinder head and locked thereto by means of lock nuts 26. These bolts project through suitable openings in the top 21 and the easing member is clamped to the cylinderhead by means of butterfly nuts 27. The upper casing member isso constructed that one side and a portion of each end rests in the gutters, while the other side and the remaining portions of the ends rest on the top of the cylinderhea-d. The casing just described entirely encloses the valve operatinsets"? ing mechanisms and protects the engine from dust and dirt. The casing members may be enameled a battle ship gray or any other color and gives the engine a neat, clean appearance. v

Having now described our'invention, What We claim as new is:

An engine protective cover comprising a section having a side and two end portions, 7

section, one side and a portion of each end wall 01" said boxlike section cooperating with I said gutter.

In testimony whereof we aflix our signatures. i

l VIL'LIAM W; HULL. CHARLES H. HULL.

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