US1561666A - Overhead transformation for fords - Google Patents

Description

Nov. 17, 1925.

R. M. RooF ovmmm TRANSFORMATION fon Fonos I Original Filed Sept.' 2. 1924 Patented Nov. 17, 1925.

UNITED STATES PATENT OFFICE.

ROBERT M. noon, or ANDERSON, INDIANA.

OVERHEAD TRANSFORMATION Fon ronDs.

` Application leli` September 2, 1192-1, Serial No. 735,456. Renewed July 27, 1925.

To all whom t may concer/rt:

`Be it known that I. ROBERT M. Roon, a

citizen of the United States. and aresident of Anderson, county of Madison, and State ofIndiana, haveinvented a certain newand useful Overhead Transformation for Fords; andI do hereby declare that the following is a full, clear, and exactdescription thereof,*reference being had to the accompanying 1 drawings. in whichlilie numerals refer to like parts.

This invention relates to a Ford transformation, that is, an internal combustion engine of the L type which is transformed by an overhead cam shaft. y

"The chief object of the invention is to construct the several parts "of a motor of the general character indicated?, whereby said 5 into an overhead valve type motorloperable 5 parts are `readilyattachable to an engine commonly called the Ford, fortransforming the salme'into a highspeed engine. `Such `an engine usually requires a pressure lubricating systemand .a positive circulation coolingsysteml Thechief features ofthe invention, therefore,"consist in `the accomplishment `of the foregoingobject, bythe provision of parts for ready attachment to the Ford engine whereby said engine is transformed into a high speed enginehaving a pressure lubrieating system and apositive circulation cooling system and includes overhead camshaft neans for directly operating overhead valves. `Another feature ofthe invention consists in the association of the'` several meansfor driving the overhead cam yshaft means by the usual cam shaft of the Ford engine.

The full nature ofthe invention will be understood, from the accompanying drawings and the. following description and claims:

In the drawings, Fig. 1 is a side elevational view of the front portion `of aFord engine equipped with the invention and with several of the partsthereof shown in section to show otherparts in detail. 'Figi 2 isa front elevational view of thel same. ',Fig. 3 isan enlarged transverse sectional view taken substantially inthe plane of lineB-. on

Fig. ljand.intheadirection `of the arrows.

Fig. 4`is an enlarged central sectionalyiew of a modified form of one portion ofthe invention. f i

In the drawings there is illustrated the invention as applied to a Ford motor. This invention includes a `plurality of attachments for the present `Ford motor or a motor of the general character described. Such a motor consists of a cylinder block l() provided with an L type ydetachable head, and herein said head is shown replaced by a head provided with overhead valves having the stems 12 that extend upwardly therefrom and said stems support a spring retainer 13 which retains a coiled spring 14 concentric with the valve stem for normally `maintaining the valve in the closed position. The valve stem 12 abuts a tappet cup 15 which is slidably, and if desired,non rotatably mounted in a supporting plate or base 16. Positionedabove said base and rotatably supportedin hearings supported by said base is a pair `of cam shafts 17 inclu-ding the meshing gears 18. Positioned forwardly of the forward bearing upon one of the shafts-17 is a sprocket pinion 19suitably secured to said shaft for rotating the same and thereby rotating both shafts.` The shafts l'ncarry suitable cams 2O for actuating the tappet cups 15, thereby opening the valves carried by the stems 12. The foregoing lconstruction is disclosedin the co- `pending Patent No. 1,509,611, dated September 23,1924.` A cover 21 encloses all of the foregoingcam and `valve construction. Said cover 21 must be removed to remove `the head from the blockf `Suitably` secured to the cover and communicating with the cam shaft chamber formed thereby and atone end is atubular housing herein shownformed of two complementary portions or channels 22 secured together as indicated at23. `Said housing terminates in a flange 24 which in turnis `secured to a complementary flange 25 formed upon a casing 26 in turn suitably secured to which is the original Ford cani shaft. The

n housing 22 includes an enlargement 30, and

positioned in said enlargement is a finger 31 pivotally supported at 32. Adjustably supported in said enlargement is a pressure member 33 in the form of a bolt secured in adjusted position by the lock nut 34. ljressure of the tautening device 31 upon the chain 28 removes the slack and Whip from said chain. It Will be readily apparent from the foregoing that the overhead v`cam shafts 17 are driven in timed relation With the crank shaft 35, since the crank shaft through the usual Ford construction drives the original cam shaft of the Ford, which 'drives the pinion 29. ln Fig. 4there is illustrated a modified form of they invention. In'this form of the invention the vg'rea-rsfli are omitted and a sin'- gle cam shaft 4117 having the ca-ms` 120- actu.- ate the `tappet cups 115 for opening the valves carried by the stems 112. rlhe shaft 117 vcarries the extensionv shaft 118 v`vhich includes the sprocket teeth 1-1-9.v 'In Figs. 1 and 2 the invention is disclosed as 'of-the four valves tothe cylinderV type, whereas the modification in Fig.. 4T discloses two Valves to the cylinder type. Either type' of valve construction may be utilized as des'ired.

As shown at the bottom of'Fig. 1 the usual tim-ing gearV 40 is actuable by'a shaft'41, and this is extended and threaded as at 42.` The threaded extensionv 'supports ,aV sleeve-like shaft 43, the pin 44 locking the same to.n gether, `and saidsleeve-like l-shaft'43 carries 'the pinion teeth 29 for driving theA chain. The extension 42 is further extended at 43 and includes a tongue and groove arrange.- ment 46; A shaft 47 has a similarl arrangement, and projects forwardly through la gland 48 into a gear housing 49. The foregoing constitutes an outboard bearing forthe large timer gear shaft extension. The gear housing 49 includes two channels 50 `upon opposite'sides and is adapted to support two gears. A cover `51 is associatedwtherewith and with two meshingl gears completes the .oil'pump construct-ion for insuring la pressure lubricating system. Thisipumprequires no 'special alignment.

Positioned at one sidel of the cylinder block and communicating therewith.y and upon the bracket is a centrifugalxtype Water pump 61-, operable by shaft means indi.-

cated generally Lby the numeral 62 which wafer pump .construction `and drive therefor may be omitted if desired, and also that the oil pump and shaft connection may be omitted if desired, or both may be omitted, and the result Will be a transformed overhead valve, overhead cam shaft type of Ford engine. However the additionpf .the Water pump and the oil pump' permit'soperation of the transformation at a much higher speed than normal which results in a more powerful engine of thefsa'me volumetric displacement.

The invention Vclaimed is:

l. In an. internal .combustion 1engine transformation, the combination of a` Ford cylinder block having a crank case and a cam shaft therein, a detachable Fordv head` replacing .oVer-head valve type 'head posi:- .tioned thereabove, an. overhead camshaft, a.

chamber forming overhead. cam shaft en- 1 closing cover therefor detachably positioned above said head', a tubular housing communicating at its upper .end l With said chamber andat its lower end with the crank case,- 'and a. power connection` insaid tubular i housing and operable by a shaft mounted in vthe original cam shaft bearingl for'.driving lthe .over-headbam shaft in timedv relation with the-engine 2. In an internal combustion engine trans,- l 1 and oper-able thereby, a detachable pump Y ladapted to be included in the cool-ing sy,- temof said engine .and included in the :timer shaft connection andl -operable thereby, and .a gear pump detachably supported by said base bracket and also included. in thetimer r shaft connection .and operable 'thereby' for providing a pressure lubricating-supply.

3. In a transformation for Ford engines, the combination of ithe ,original timing gear shaft .ofsaid kengine a sleeve` shaft .detachably secured ithereto and ,operable thereby, a .power connection operable by `said ysleeve shaft for operating the valves of said engine, another shaft concentrically positioned Within .said -sleeve shaft-and having adetachable connection with the/original timinggearshaft, `and .power `operable meansoperable by said concentric shaft. f r

4. In .atransformation for F ord engines,

the combination of a .replacing overhead .i

valve`-type head, the .original timing gear shaft. bea-ring, and an yextended `shaft imounted 'in said bearing .and including: Fdriving teeth-A on the eextension for Ydriving ttheoverhead. .valveslof said head.

,5. yIn .af transfonmation for Ford engines, 'the combination of a .replacing .overhead valve-type head, .the Yoriginal timing gear shaft bearing, .an extended shaft mounted -n said bearing andincluding driving teeth on the kextension for driyingthe ,over-head valvee of said head, and another' and outboard bearing for the extended end of Said shaft.

6. In a 'transformation for Ford engines, the combination of a replacing detachable overhead valve-type head having overhead valves and an overhead earn shaft, cover means therefor and detachably mounted, the

removal of said head requiring previous removal of the cover means, an extended shaft 10 adjacent the crankshaft, and an enclosed drive for the overhead cam shaft operable by said extended shaft.

In Witness whereof, I have hereunto affixed my signature.

ROBERT M. ROOF.

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