US2563382A - Combined cylinder head stand and valve spring compressor - Google Patents

Description

Aug. 7,1951 A w TAYLO R 2,563,382 COMBINED CYLINDER HEAD STAND AND O VALVE SPRING COMPRESSOR Filed Jan; 17, 1949 2 Sheets-Sheet 1 lln In. "M

' \f/ 1 57 o. o

o J I E Q 4 3| I'TI ll lo 25H] I T Fig. 8. A/ws w 56 156012.

4 I BY M406.

' 2;; Maya-5 1951 A. w. TAYLOR 3.

COMBINED CYLINDER HEAD STAND AND VALVE SPRING COMPRESSOR Filed Jan. 17, 1949 2 Sheets-Sheet 2 Fig. 3.

95 9 59 43 1 i 54 5 8 I l 29 29 i 2 2 F 1- 26 26) 27 5/ A 27 i 28 /0 28 [V II I 5 4 .ITL 50 50 Fig. 4

7 F 46 Alvis W. Taylor INVENTOR.

i 'aten teci Aug. 7, i95l OFFICF.

COMBINED CYLINDER HEAD STAND AND VALVE SPRING COMPRESSOR Alvis W. Taylor, Clovis, N. Mex.

Application January 17, 1949, Serial No. 71,294

Claims.

My invention relates to improvements in combined cylinder head stands and valve spring compressors for use in removing overhead valves in internal combustion engines.

The primary object of the invention is to provide a simply constructed device for supporting the cylinder heads of overhead valve engines, with the valves held seated in a manner to facilitate compressing of the valve springs and removal of the spring retaining devices quickly and easily so that thevalves may be removed with a minimum of labor.

Another object is to provide a device of the character and for the purpose set forth which is especially adapted for performing such operations in the removing of valves of either six or eight cylinder overhead valve engines in which the cylinders are arranged in line.

Still another object is to provide a device for the purposes above set forth which is inexpensive to manufacture and install and will not get out of order under prolonged use.

Other and subordinate objects, within the purview of my invention, together with the precise nature of my improvements will be readily understood when the succeeding description and claims are read with reference to the drawings accompanying and forming part of this specification.

In the said drawing:

Figure 1 is a view in perspective of my invention in the preferred embodiment thereof with a cylinder head supported thereby and shown in broken lines;

Figure 2 is a view in plan partly broken away;

Figure 3 is a view in longitudinal vertical section taken on a line 3-3 of Figure 2;

Figure 4 is a view in vertical transverse section taken on the line 4-4 of Figure 1;

Figure 5 is a fragmentary view in perspective of the1 spring compressing plunger drawn to a larger sca e; V

Figure 6 is a fragmentary view in vertical section of one of the valve rests;

Figure 7 is a view in perspective of one of the pair of cylinder head elevating blocks;

, Figure 8 is a fragmentary view in transverse section illustrating the use of one of the cylinder head elevating blocks.

Referring now to the drawings by numerals, the stand of my invention, as illustrated, comprises an open front, rectangular cabinet I, of any suitable material, preferably sheet metal, with ends 2, a back 3, a bottom 4 and a fiat top 5 extending beyond theright hand end 2 of the cabinet for a purpose presently seen. A longitudinal slot 6 in the top 5 extends between the ends 2 in the rear of the longitudinal center of the top 6 for a particular purpose presently apparent. The slot 6 corresponds in length, substantially, with that of the head of an eight cylinder overhead valve engine. The top 5 is designed to support thereon a cylinder head H shown in dotted lines in Figure I over and aligned with the slots 6, it being understood that the said slot is narrower than the said head.

A vertically slidable, upright valve supporting frame 1 is provided in the cabinet I in vertical alignment with the slot 6 and comprising end guide sleeves 8 vertically slidable on upright guide rods 9 spaced beyond the ends of the slot 6 and having flanged ends [0 bolted, as at II, to the top 6 and bottom [0. A horizontal lower rod l2, and a similar upper rod [3 rigidly connect said guide sleeves 8 and complete the frame 1. Tubular posts l i with enlarged, square, flat head [5 thereon are suitably fixed at the lower ends thereof on spacing sleeves 16 on the lower rod l2, said sleeves being held in end to end engagement by cotter pins ll in said rod 12. The upper rod I3 extends through the tubular posts Hi to hold the same rigidly in the frame I. The heads [5 form valve rests, or supports, as will presently more clearly appear. For this purpose, the posts l4 are spaced apart along the frame 1 in correspondence with the spacing of valves H3 in the cylinder head H so that the heads IE will properly function as valve rests or supports.

The posts 14 as shown, and the heads [5 are of the requisite number for supporting valves IS in the head of the six cylinder engine, but, the frame 1 is of sumcient length so that other posts 14, and heads I5, may be added for the valves of a cylinder head for an eight cylinder overhead valve engine. This may be accomplished by having the upper and lower rods I3, l2 detachable, in any suitable manner, not shown, from the guide sleeves 8. V

The posts Hi, sleeves l6 and the guide sleeves 8, for economy in costs of construction, may take the form of stock pipe sections, and the heads [5, for further economy in construction, and for replacement purposes, may be secured on the upper ends of the posts M by nuts l9 threaded on the said posts and on which said heads I5 are welded as at 20. a Y

A vertically rocking U-shaped yoke 25 in the cabinet I is pivoted at its sides, as at 26, on angle brackets 21, bolted as at 28, on the bottom 4 of said cabinet. Fiat end plates 29 on said yoke 25 3 are suitably slotted, as at 30, for extension of the guide rods 9 therethrough so that said plates 29 underlie the lower ends of the guide sleeves 8 whereby the yoke 25 may be rocked in a direction to lift said sleeves 8 and adjust the frame 1 upwardly to move the heads I5 through the slots 6 against the valves I8 to act as supports or rests for maintaining said valves closed while the valve springs and spring retaining devices are being removed. The yoke may be economically formed of tubular stock with flat ends 33 on which the plates 29 are suitably welded, as at 33'. A foot pedal 3I extends from the center of the yoke 25 out of the center of the cabinet I for rocking the yoke 25 so as to lift the frame I.

A yoke locking rod 34 extends upwardly from the yoke 25 through a suitable opening 35 in the top 5 and is fixed at its lower end on a rotatable sleeve 36 on said yoke and provided with longitudinally spaced notches 31 so that said rod may. be swung to engage a selected notch over the edge of the opening 35 to lock the yoke 25 after the frame I has been lifted to proper posi tion. As will be understood, the yoke 25 may be rocked to lower the plates 29 so that the frame I will drop to a lowered position and into the cabinet I below the top thereof when the device is not in use.

A coil spring 38 fixed at one end, as at 39 in the cabinet I with its other end suitably fixed to a collar 40 on the yoke locking rod 34 urges said rodinto a position to engage the notches 31 with the edge of the opening 35. A set screw 4I suitably engagesthe yoke 25 and is extended through the sleeve 36 to prevent said sleeve from creeping along the. yoke 25 during rocking of said yoke. A suitable hand grip 42 is provided on the yoke locking rod 34.

A tubular frame 43 of inverted U-shape is provided at the back of the cabinet I and has its sides 44 vertically slidable in tubular guides 45. arranged at the rear corners of the cabinet I so that said frame 43 extends at its top along and above the top 5 of the cabinet. The lower ends of the guides 45, are welded, as at 45, to the bottom 4 of the cabinet I and extend upwardly through the top 5 for a short distance to fix the said guides in said top. Set screws 41 in said guides 45, above the top 5, provide for setting said frame 43 in vertically adjusted positions for a purpose presently apparent.

A rod-like hand lever 48 is provided to extend forwardly of the frame 43 above the cylinder head H and is mounted on said frame for vertical swinging and lateral sliding adjustment along said frame by means of a sleeve 49 to which said lever is attached at one end and which is rotatable and slidable along the top of the frame 43. V

A plunger 50 for compressingthe valve springs, one of which is shown at Si in broken lines, is pivoted at its upper end, as at 52, on a clip 53 on said lever 48 and provided with a bifurcated, right angled, foot 54 welded to its lower end, as at, 55, the arrangement being such that said lever 48 is vertically swingable and laterally adjustable along the frame 43 so as to position the foot 54 for manual swinging on the pivot 52 into straddlin relation to the stem of a selected valve I8 and in overlying position tothe spring 51 on the said valve.

As will now be seen, with the frame I adjusted in the manner described so that the heads I5 support the valves I8 seated, the hand lever 48 may be adjusted vertically and laterally so that the plunger 50 may be manually swung to position the foot 54 in the manner described relative to the stem and spring of a selected valve I8. The hand lever 48 may then be swung down-- wardly to cause the foot 54 to compress the selected valve spring 5I so that the spring retaining devices may be detached, in the usual manner, and the valve spring then removed so that the valve I8 may subsequently be removed.

The top 5 is provided adjacent the slot 6 with suitable openings 51 for receiving dowel pins 58 on a pair of blocks 59 adapted to be anchored on the top 5 by said pins 58 and openings 51 to support the head H elevated on the top 5 in inverted position for removing the valves I8 or reseating the same.

At the right hand end of the top 5, which extends past the adjacent end 2 of the cabinet I, rows of openings 59 are provided in said top for the insertion of the stems of the removed valves I8 therein in associated pairs in an out-of-theway position as regards an operator working in front of thecabinet.

Corner casters 60 on the cabinet I provide for wheeling the same about,'as desired, for instance to a valve refacing machine where the valves in the openings 59 may be removed conveniently for refacing operations.

The foregoing will, it is believed, sufiice to impart a clear understanding of my invention, without further explanation.

Manifestly, the invention, as described, is susceptible of modification without departing from the inventive concept, and right is herein reserved for such modifications as fall within the scope of the appended claims.

Having described the invention, what is claimed as new is: l

1. A combined cylinder head stand and valve spring compressor comprising a cabinet having a top provided with an elongated slot therein for supporting a cylinder head with the valves disposed over the slot, a vertically movable frame in said cabinet, separate supports for the valves mounted on said frame for vertical movement thereby out of said cabinet and slot into supporting relation to said valves, manipulative means for moving said frame, and manipulative means for compressing the valve springs.

2. A combined cylinder head stand and valve compressor comprising a cabinet having a top provided with an elongated slot therein for supporting a cylinder head with the valves disposed over said slot, a vertically movable frame in said cabinet, supports for said valves mounted on said frame and movable thereby out of said cabinet and slot into supporting relation to said valves, manipulative means for moving said frame, manipulative means for compressing the valve springs-preparatory to removing the same, and blocks for positioning over said slots to hold the head elevated off said top to facilitate valve seating operations after the "springs have been removed.

3. A combined cylinder head stand and valve spring compressor comprising a cabinet having a top provided with an elongated slot therein for supportinga cylinder head with'the valves disposed over the slot, a vertically movable frame in said cabinet, separate supports for thevalves mounted on said frame for vertical movement thereby out of said cabinet and 'slot into supporting relation to said valves, manipulative means for moving saidframe, and manipulative meansfor compressing the-valve springs, the

first mentioned means comprising a rocking yoke in said cabinet operatively connected to said frame, and a foot pedal on said yoke extending out of said cabinet for rocking said yoke.

4. A combined cylinder head stand and valve spring compressor comprising a cabinet having a top provided with an elongated slot therein for supporting a cylinder head with the valves disposed over the slot, a vertically movable frame in said cabinet, separate supports for the valves mounted on said frame for vertical movement thereby out of said cabinet and slot into supporting relation to said valves, manipulative means for moving said frame, and manipulative means for compressing the valve springs, the last mentioned means comprising a vertically adjustable frame upstanding above said top and extending along said top, and a hand lever laterally shiftable along said last mentioned frame and vertically swingable thereon with a pivoted plunger mounted on said frame for vertical movement thereby out of said cabinet and slot into supporting relation to said valves, manipulative means for moving said frame, and manipulative means for compressing the valve springs, the first mentioned means comprising a rocking yoke in said cabinet operatively connected to said frame, a foot pedal on said yoke extending out of said cabinet for rocking said yoke and spring tensioned means for locking said yoke to hold said frame stationary after the supports have been moved into valve supporting position.

ALVIS W. TAYLOR.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,432,725 Nolting Oct. 17, 1922 1,621,237 Davis Mar. 15, 1927 1,697,921 Krogman Jan. 8, 1929 1,734,122 Glaspy Nov. 5, 1929 1,805,320 Trimble May 12, 1931 1,849,538 Bernitz Mar. 15, 1932 2,056,329 Prosser Oct. 6, 1936

Images