US1518669A

US1518669A - Intake-manifold shield

Info

Publication number: US1518669A
Application number: US455291A
Authority: US
Inventors: Maurice B Nash
Original assignee: Individual
Current assignee: Individual
Priority date: 1921-03-24
Filing date: 1921-03-24
Publication date: 1924-12-09
Anticipated expiration: 1941-12-09

Description

Dec. 9, 1924. 1,518,669 M. B. NASH INTAKE MANIFOLD SHIELD Filed March 24, 1921 Patented Dec. 9, 1924.

UNITED STATES MAURICE B. NASH, OF POINT, MISSISSIPPI.

INTAKE-MANIFOLD SHIELD.

Application filed March 24, 1821. Serial No. 455,291.

T 0 all whom it may concern:

Be it known that MAURICE l3. NASH, a citi- Zen of the United States,'residing at lVest Point, in the county of Clay and State of Mississippi, has invented certain new and useful Improvements in Intake-Manifold Shields, of which the following is a specification.

This invention relates to improvements in intake manifold shields for use in connection with internal combustion engines, and

the primary object of the invention is to fur-- nish a shield which may be quickly attached to or detached from the engine without the use of tools and which when attached will cover a large portion of the intake manifold and exhaust pipe and will permit the utilization of the heat rising from the exhaust pipe for heating the intake manifold. 7

Another object of the invention is to furnish a device of this character with anapron extension which will extend from a point adjacent the inlet ports of the enginedown to a point beneath the outlet of the carbureter, so that the entire front portion of the intake manifold will be protected from cold air during use of the engine in cold weather.

A further object of the invention is to furnish an improved shield of simple and inexpensive construction.

With the foregoing objects outlined and with other objects in view, which will appear as the description proceeds, the invention consists in the novel features hereinafter described in detail, illustrated in the accompanying drawing, and more particularly pointed out in the appended claims.

Referring to the drawing:

Figure 1 is a side View of an automobile engine of the Fordtype with my improved g shield in position.

Fig. 2 is an enlarged sectional view of the shield taken on line 2-2 of Fig. 1.

Fig. 3 is a similar sectional view taken on line 3-3 of Fig. 1.

Fig. 4 is a perspective view of the device.

Fig. 5 is a plan view of the blank from which the body of the shield is manufactured.

In the drawing, 1 designates an engine having an exhaust pipe 2 and an intake manifold pipe 3, the last mentioned pipe being arranged below the exhaust pipe and being provided with a vertical depending extension 4 which is connected to the carbureter 5. In the Ford type engine the exhaust and intake pipes are connected to the engine cylinders by means of screws or bolts 6 which engage clamp plates or spiders 7 that bear upon said pipes. In attaching my improved shield to the engine I propose to utilize the clamp plates or spiders 7 in attaching my shield.

The improved shield as best shown in Fig. 5 includes a front ortion 8 havin a bottom flap 9 which is bent substantially at right angles to the front portion 8 and is provided with, a depending apron 10. The body portion 8 is provided with end flaps 11 and 12, the latter being provided with side wings 13 which are bent over andengage the top 14 and bottom 9 of the shield. The rear flap 11 is bent at an acute angle relatively to the front portion 8 as best shown in Fig. 2 so that heated air within the shield, in escaping from the rear end of the shield will function to heat the major portion of the manifold 3. It will be noted that the top portion 14 is provided with a triangularshaped flap 15 which is bent downwardly to engage the rear flap 11.

This shield as best shown in Figure 1 covers the entire front half (or even two thirds or three quarters) of the intake and exhaust pipes and the heat created by the exhaust pipe will travel rearwardly to heat the in take manifold, a certain portion of the heated air traveling downwardly and heating the leg 4 of the intake manifold. This descending of the heated air will be facilitated by the apron 10 and the rear flap 11. It will be noted that the apron 10 shields the leg 4 of the manifold.

In order to attach the shield to the en- 'ine, I have provided the shield with a plurality of hooks 16 which extend through the front portion of the shield and through the leaf-spring 17. The outer ends of the hooks 16 are furnished with finger engaging Wings 18 to be utilized in turning the hooks. When the shield is placed over the front portion of the exhaust pipe and intake manifold, the inner ends 19 of the hooks 16 are turned into aligned relation and are placed over the front clamp plates or spiders 7. Then the wings 18 may be turned to place the inner ends 19 in parallel relation so that these inner ends will hook over the spiders 7. The leaf-spring 17 which is fixed at 20 to the front portion of the shield will then force the members 18 away from the front portion of the shield and cause the hooks to clamp the shield in position. 7

The shield may be quickly removed by simply turning the inner ends of the hooks 19 into alignment and then withdrawing the shield from the engine.

From the foregoing I believe that the construction and operation of the device will be readily understood by those skilled in the art and I am aware that various changes may be made in the construction shown without departing from the spirit of the in vention as expressed in the following claims.

What -I claim and desire to secure by Letare Patent is z 1. A shield, for use with the exhaust pipe and intake manifold of an internal combustion engine, consisting of a one-piece sheet :metal member having a vertical end Wall adapted to be arranged in front of the front ends of said pipe and manifold, a vertical front wall arranged at an angle to the end wall and of a length substantially half the length of the manifold, adapted to extend over the exposed sides of the front portions only of's'aid pipe and manifold and provided with a rearwardly and inwardly extending vertical flap adapted to direct heated air from the shield along that portion of the manifold which is not covered by the shield, horizontal top and bottom walls integral with the front wall and adapted to be arranged aboveand below said pipe and manifold, and a substantially flat vertically disposed apron integral with said bottom wall- 'gageable with a portion of an engine for securing the shield in place without detaching any part of the engine.

3-. The combination with an internal combustion engine having an exhaust pipe and an intake manifold and means including spiders for connecting the pipe and manifold in position, of a shield arranged over a portion of said pipe and manifold, a plurality of hooks adapted to detachably engage said spiders and having shanks rotatably mounted in said shield, heads provided on said shanks, and a bow-spring having its central portion secured to said shield and its ends engaging said heads for yieldingly forcing said heads away from said shield and'holding said hooks in engagement with the spider In testimony whereof I affi'x my signature.

MAURICE B. NASH.