US1557272A - Valve-seating machine - Google Patents

Description

A. H. SCHAEFER VALVE SEATING MACHINE ou. .13, 192s. I 1,557,272

Filed July 1o, 1922 I II II| I I IBIII I I III I I IIIIGI I III` INVENTOR LE/PT H f /SCHHEFE/P ATTO NEI!v labirinti'l OFFICE.;

ALBERT II; soHAnrEa, or COLUMBUS, INDIANA.

VALVE-SEATING MACHINE.

Application filed July 10, 1922. Serial No. 574,110.

T all whom t may concern.'

Be it known that I, ALBERT H. SGHAEFER, a citizen of the UnitedStates, residing at Columbus, in the county of Bartholomew and State of Indiana, have invented certain new and useful Improvements in Valve- Seating Machines, vof which the following is a specification.

lThis invention relates to valve seating machines and is designed primarily for use in connection with internal combustion engines, although the same may be used for seating valves usedV for dilferent purposes,

' and the prime feature of the invention is the provision of means for successively delivering blows to the valves for forcing them against their seats, the force of the blow delivered removing any inequalities between the surfaces of the valves and their seats thereby forming a perfect fit between these parts. p

A further feature of the invention is the provision of means for adjusting the parts of the mechanism for adapting the device for use in connection with motors having a greater or less number of valves and seats, and for adjusting them to operate upon valves spaced different distances apart.

And a further feature of the invention is the provision vof means for yieldingly sup porting the valves for causing said valves to rotate incident to the delivery of blows thereto, thereby forming a perfect 'surface circumferentially of both the valve and its seat.

Other objects and advantages will be hereinafter more fully set forth and pointed out in the accompanying specification.

In the accompanyingdrawings,

Figure 1 is a topvplan view of the machine as applied to use, y

Figure 2is an end elevation thereof,

yFigure 3 is a detail sectional view as seen on line 3`3`Figure 1and Figure 4 is a sectional vlew as seen on line 't-4, Figure 2. Y

Referring to the drawings, 1 indicates a base, at one endof which is formed a block 2 `upon which the head 3 of the` motor is adapted to `rest when the valvesare being seated. Extending upwardly from the base 1 are standards 4in the upper ends of which is mounted a shaft 5, and to said shaft is fixed a pair of cams 6 and 7, one cam being preferably positioned at right angles to the other so that when one cam is in operation the other will be inoperative. The cams 6 and 7 are preferably flat in cross section and have their edges roundedfor contact with handle portions 8 of hammers 9, one end of the handle portions Sbeingconnected with collars 10 which are adjustably mounted uponV a shaft 11, which shaft isin turn mounted in standards v12` projeetingwup- Wardly from the base 1. ,Y t i i The hammers 9 are so positioned that when elevated by lthevcams Gand 7 they will 1 deliver a blow to the'valves 13 ofthe motor headwhen the cams are operated to release the hammers, thereby driving the V,valves 13 against their seats 14 formed `in the upper face of the motor head 3. The cams 6 and 7 are each of sufficient length to operate a pluralit-y ofl hammers simultaneously,` and by arranging one of the cams atright angles to the other, one set of the hammers will de; liver a blow, while the other set is being elevated thereby reducing the vibration incident to the delivery of the blows to `a minimum. i

Iii-order tov reduce to a minimum the wear on the handles 8 incident to contact with the edges of the cams, plates 15 of relatively hard `material are attached to the under facesA of the handle `portions 8 and; ingposition to'be contacted by the cams as the cams are rotated.

In'order to prevent the valves remaining seated after each blow is delivered thereto,

and 'at the same time so support the valves that they will be caused to' rotate as successive blows` aregdelivered thereto, springs 16 i are introduced, preferably around thel stems of the valves, which, while readily yielding when a blow is delivered to the valve, will elevatethe valve after each successive blow.

The action ofthe spring incident to being Y depressed' imparts slight rotating action to the valve, sufficient to cause the valve to contact with its `sea-tat a dierent point with each successive blow of the hammer onthe valve, consequently the surfaces between the i versely beneath each ,grou and is secured to the handles in any suita le manner preferably by introducing bolts 18 throughv the..

j position.h After the hammers have been elevated through the medium oi the cams 6 or 7 the groups 0f hammers are caused to descend with force byy attaching springs 2l to the opposite ends of the bars 17, the lower ends of said springs being connected to parts oi the base 1, thesprings being so arranged that when the hammers are elevated the tension'of the springs will be increased. In order to maintain the hammers in proper j valignment with the respective valves, a

bracket 22 is extended upwardly from the base 1 and to said bracket are secured a plurality of guide arms 23 which are slotted to receiveI the handle portions 8, said arms bee ing adjustably connected to the bracket 22 so that they may be moved laterally incident to the adjustment of the handle portions 8 for use in connection with motor heads having valves different distances apart. Any suitable means may be provided for rotating the shaft 5 and the cams 6 and 7 fixed thereto, but in the present instance abelt wheel 24 is shown connected to one end of said shaft for receiving power from anysuitable t source.

The form of device shownin the drawings is to be used on motorheads which are removable, but it will bev readily understood that with a slight change in the base portion j yof the structure it will be readily adaptable for use with motors which do not have lvalves removable withthe head, consequently necessitating the machine being positioned adjacent the side of the motor. Y

In operating the device, the motor hea-d i' is removed and placed upon the block, or the machine positioned adjacent the motor, so as to position the valves below the hammers after which power is applied to the pulley 24 and the cams 6 and -7 rotated, this operation being continued until the valves are properly seated. In Vthe event there are a less number of valves than are shown in the drawings, a certain number of the handle the hammers, or the hammers with respect' to the valves upon which they are to operate.

Having thus fully described my said invention, what I claim as new and desire to secure by Letters Patent, is:

1. A valve seating machine adapted for delivering blows to the valves of a motor for driving said valves against their seats, com-v prising a plurality of hammers, pivotally mounted handle portions carrying said ham-v mers, rotatably mounted cams for operating a plurality oi said hammers simultaneously, means for causing said hammers to descend into engagement with the valves with force, and means for adjusting said hammers laterally.

2. In a machine for seating valves, a plurality of hammers, lpivotally mounted supporting handles carrying said hammers, means for intermittently raising said hammers, means for causing said hammers to descend with force and drive the valves against their seats, and adjustably mounted guides for said hammers.

3. In a valve seating machine, a plurality of hammers adapted to drivevalves against their seats, pivotally mounted supporting handles for said hammers, means for connecting said hammers and handles in groups, means for intermittently elevating the groups of hammers, means for causing all of the hammers of each group to descend and deliver a blowk simultaneously, guides for said hammers,and means for adjusting said guides laterally for spacing said hammers with relation to each other.

l. In a valve seating machine, a plurality of hammers for driving'valves against their seats, handle portions for operating said hammers, bars for connecting said handle portions in groups, means or adjustably connecting the handle portions with said bars, springs connected with said bars for causing said hammers to descend with force, cams for intermittently elevating said hammers, and adjustably mounted guides for said hammers.

' In witness whereof, I have hereunto set my hand and sealv at Indianapolis, Indiana, this 8th day of July, A. I). nineteen hundred and twenty-two. v

i ALBERT H. SCHAEFER. [1.. s]

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