US1608407A - Valve-guide puller - Google Patents

Valve-guide puller Download PDF

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Publication number
US1608407A
US1608407A US34825A US3482525A US1608407A US 1608407 A US1608407 A US 1608407A US 34825 A US34825 A US 34825A US 3482525 A US3482525 A US 3482525A US 1608407 A US1608407 A US 1608407A
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United States
Prior art keywords
valve stem
valve
guide
stem guide
puller
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US34825A
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Stephen L Macias
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Individual
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
    • B25B27/062—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races using screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/023—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same using screws
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53796—Puller or pusher means, contained force multiplying operator
    • Y10T29/53848—Puller or pusher means, contained force multiplying operator having screw operator
    • Y10T29/53857—Central screw, work-engagers around screw
    • Y10T29/53878—Tubular or tube segment forms work-engager

Definitions

  • This invention relates to valve stem guide pullers.
  • valve stem guides which snugly fit within bores formed in the cylinder block.
  • the usual procedure for pulling a valve stem guide into place is by means of an ordinary bolt which is extended through the valve stem guide with the head of the bolt resting on a washer placed on the top of a cylinder block and the valve stem guide pulled into, place by turuing the nut on the. bolt.
  • the threads on the bolt are often stripped, due to the tension required to pull the valve stem guide into place.
  • the object of this invention is to provide a valve stem guide puller which will etleo tively pull the valve stem guide into place without any danger of stripping threads regardless of the diameter of the valve stem.
  • Another object of the invention is to provide a valve guide puller which may be quickly applied, for pulling the valve guide into place, and quickly removed from the cylinder block after the guide has been pulled into place.
  • Figure 1 is a fragmentary section of a cylinder block of an internal combustion engine, showing the improved valve stem guide puller as it appears in the first step in the operation of pulling the valve stem guide into place.
  • Fig. 2 is a view analogous to Fig. 1, showing the valve stem guide puller as it appears when the valve stem guide has been pulled into place.
  • Fig. 3 is a perspective View of the valve stem guide puller.
  • Fig. i is a transverse section taken on line 4c4c of Fig. 1.
  • Fig. 5 is a perspective view showing the details of construction of the valve stem guide puller.
  • cylinder block 10 designates a cylinder block having a cylinder 11, and a piston 12 therein.
  • the cylinder block 10 is of conventional construction and has a port 13 formed therein, adjacent the cylinder 11, which may be either an intake or exhaust port.
  • a valve seat 1% is formed in the upper face 15 of the cylinder block and a bore 16 in alinelnent with the valve seat 1 1 is also formed in the cylinder block, which is adapted to receive a valve stem guide designated at 17 1,
  • the valve stem guide 17 is of conventional"construction and has an internal bore 18 through which the valve stem of the poppet valve extends, and is provided with a flange 19 projecting from the body portion 20.
  • the valve stem guide puller is generally designated at 21, and consists of a cylinder or sleeve 22, adapted to rest on the upper face 15 of the cylinder block 10 and is provided with a slot 23 for a purpose later referred to.
  • a head generally designated at 24k has a hub 25 which is adapted to fit within the bore of the cylinder 22 with the shoulder 26 resting on the upper edge of the cylinder
  • An opening 27 is formed in the head 24:, through which extends a jack screw 28, having an internal bore 29 and a swedged head 30 in which is formed an opening 31 of smaller diameter than the bore 29, thus forming a shoulder 32 upon which a head 33 of a pulling rod 3% is adapted to engage.
  • a groove 35 is formed in the lower end of the pulling rod 341 and is adapted to receive a pair of segmental rings 36 clearly shown in Fig. 5, (which engage a shoulder 37
  • the segmental rings 36 when placed on the rod 34k project beyond the face of the rod 34: and form an abutment adapted to be engaged by a. shoulder 38 formed in a collar 39, having a sleeve t0 adapted to tit over the rings 36.
  • a washer L2 is mounted on the head 24: and a nut 43 is carried by the screw 28.
  • valve stem guide 17 is placed in the bore 16 of the cylinder block as shown in Fig. 1, and the valve stem guide puller placed on top of the cylinder block.
  • the rod 34 will drop through the bore 10 in the valve stem guide when the rod and opening 18 are in alinement.
  • the screw 28 is adjusted by the nut 43 so that the rod 3% will project below the end of the valve stem guide.
  • the cylinder 22 may have a tendency to move with the nut 43 when it is turned, due to tension and frictional cont-act. This movement may be prevented by inserting a pin 'or bar, indicated at a l through openings in the upper end of the screw 28 and manually held against rotation when the nut 43 is turned.
  • the nut a3 is turned to the left, which will permit the rod to move downwardly.
  • the collar 39 is raised, the segmental rings removed and the collar sl1pped oil the end of the rod, which will permit the rod to be pulled upwardly through the bore in the valve stem guide.
  • the rod 3% may be made in diflerent sizes to accommodate various sizes of valve stem guides and is adapted to be interchangeable in the jack screw 28, the diameter of the rod being variable while the head 33 remains the same for each rod.
  • the valve stem guide puller may beemployed for removing valve stem guides from the bores in the cylinder block of engines in which the valve stem guides are moved into place by downward pressure, and in operation the device is placed on top or the cyl-' inder block as above described and the valve against rotation, said pulling rod eoaeov stem guide pulled out by turning the nut 43.
  • valve guide puller is shown as being utilized for inserting valve guides which are pulled into place in the bore 16 from below. However, some of these guides are thrust into place from above and hence my puller may be utilized to dislodge or to remove guides of such character.
  • valve stem guide puller is of simple construction, may be quickly applied for use, will effectively pull the valve steiirguide into place and may be quickly removed.
  • a valve guide puller comprising-a cylinder, having a slot formed in one side thereof, ahead resting on the top of said cylinder, a screw having; an internal bore projecting through an opening formed in said head and having a shoulder formed in the lower end thereof, a rod having a head engaging said shoulder, a collar having an opening adapted to lit over the lower endot said rod, said rod having a groove, a pair of segmental rings adapted to be mounted in the groove, said collar having a shoulder adapted to engage said segmental rings, a not carried by said screw adapted to raise said rodand a pin carried by the lower end of said screw adapted to engage; the sides of the slot formed in said cylinder.
  • a valve guide puller comprising a member adapted to rest on the top or" a cyl inder block, a head mounted on said member, a screw extending through said head, a nut engaging saidscrew, a pulling rod carried by said screw, means for holding said screw having an annular groove in the lower end thereof, a pair of segmental rings adapted to lit withinsaid groove and a collaradapted to es gage said segmentalrings.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Description

Nov. 23 1926. 1 1,608,407 s. L. MACIAS I VALVE GUIDE FULLER Filed June 4, 1925 Patented Nov. 23, 1926.
PATENT .rricn.
STEPHEN L. MACIAS, OF POIVIONA, CALIFORNIA.
VALVE-GUIDE FULLER.
Application filed June 4, 1925. Serial No. 34,825.
This invention relates to valve stem guide pullers.
Practically all internal combustion engines are provided with valve stem guides which snugly fit within bores formed in the cylinder block. The usual procedure for pulling a valve stem guide into place is by means of an ordinary bolt which is extended through the valve stem guide with the head of the bolt resting on a washer placed on the top of a cylinder block and the valve stem guide pulled into, place by turuing the nut on the. bolt. However, 1n instances when the valve stem is of small diameter, the threads on the bolt are often stripped, due to the tension required to pull the valve stem guide into place.
The object of this invention is to provide a valve stem guide puller which will etleo tively pull the valve stem guide into place without any danger of stripping threads regardless of the diameter of the valve stem.
Another object of the invention is to provide a valve guide puller which may be quickly applied, for pulling the valve guide into place, and quickly removed from the cylinder block after the guide has been pulled into place.
These objects are accomplished by the disclosure herein set forth by the following description of the accompanying drawings illustrating a practical embodiment of the invention, the novel features thereof being pointed out in the appended claims, in which;
Figure 1 is a fragmentary section of a cylinder block of an internal combustion engine, showing the improved valve stem guide puller as it appears in the first step in the operation of pulling the valve stem guide into place.
Fig. 2 is a view analogous to Fig. 1, showing the valve stem guide puller as it appears when the valve stem guide has been pulled into place.
Fig. 3 is a perspective View of the valve stem guide puller.
Fig. i is a transverse section taken on line 4c4c of Fig. 1.
Fig. 5 is a perspective view showing the details of construction of the valve stem guide puller.
Referring by numerals to the accompanying drawings, designates a cylinder block having a cylinder 11, and a piston 12 therein. The cylinder block 10 is of conventional construction and has a port 13 formed therein, adjacent the cylinder 11, which may be either an intake or exhaust port.
A valve seat 1% is formed in the upper face 15 of the cylinder block and a bore 16 in alinelnent with the valve seat 1 1 is also formed in the cylinder block, which is adapted to receive a valve stem guide designated at 17 1, The valve stem guide 17 is of conventional"construction and has an internal bore 18 through which the valve stem of the poppet valve extends, and is provided with a flange 19 projecting from the body portion 20.
The valve stem guide puller is generally designated at 21, and consists of a cylinder or sleeve 22, adapted to rest on the upper face 15 of the cylinder block 10 and is provided with a slot 23 for a purpose later referred to.
A head generally designated at 24k, has a hub 25 which is adapted to fit within the bore of the cylinder 22 with the shoulder 26 resting on the upper edge of the cylinder An opening 27 is formed in the head 24:, through which extends a jack screw 28, having an internal bore 29 and a swedged head 30 in which is formed an opening 31 of smaller diameter than the bore 29, thus forming a shoulder 32 upon which a head 33 of a pulling rod 3% is adapted to engage.
A groove 35 is formed in the lower end of the pulling rod 341 and is adapted to receive a pair of segmental rings 36 clearly shown in Fig. 5, (which engage a shoulder 37 The segmental rings 36 when placed on the rod 34k project beyond the face of the rod 34: and form an abutment adapted to be engaged by a. shoulder 38 formed in a collar 39, having a sleeve t0 adapted to tit over the rings 36.
A pin l-1extends radially from the swedged head 30 and projects into the slot 23 and is adapted to hold the screw 28 from rotation. A washer L2 is mounted on the head 24: and a nut 43 is carried by the screw 28.
In operation the valve stem guide 17 is placed in the bore 16 of the cylinder block as shown in Fig. 1, and the valve stem guide puller placed on top of the cylinder block. The rod 34 will drop through the bore 10 in the valve stem guide when the rod and opening 18 are in alinement.
The screw 28 is adjusted by the nut 43 so that the rod 3% will project below the end of the valve stem guide.
vented from moving downward 011 the rod 34- by the segmental rings 36. By turning the nut 43 the screw 28 will be raised, the action of which will bring the collar 39 into engagement with the lower end of the valve stem guide 17, and by further rotation 01" the nut 4:3, the valve stein guide 17 will be pulled into place as shown in Fig. 2, the screw 28 being held against rotation by the pin ll engaging the sides of the slot 23.
In instances when the valve stem guide fits very tightly within the bore in the cylinder block, the cylinder 22 may have a tendency to move with the nut 43 when it is turned, due to tension and frictional cont-act. This movement may be prevented by inserting a pin 'or bar, indicated at a l through openings in the upper end of the screw 28 and manually held against rotation when the nut 43 is turned.
In order to remove the valve stem guide puller after the valve stem guide has been brought into place, the nut a3 is turned to the left, which will permit the rod to move downwardly. The collar 39 is raised, the segmental rings removed and the collar sl1pped oil the end of the rod, which will permit the rod to be pulled upwardly through the bore in the valve stem guide.
The rod 3% may be made in diflerent sizes to accommodate various sizes of valve stem guides and is adapted to be interchangeable in the jack screw 28, the diameter of the rod being variable while the head 33 remains the same for each rod.
The valve stem guide puller may beemployed for removing valve stem guides from the bores in the cylinder block of engines in which the valve stem guides are moved into place by downward pressure, and in operation the device is placed on top or the cyl-' inder block as above described and the valve against rotation, said pulling rod eoaeov stem guide pulled out by turning the nut 43.
It will be noted that my valve guide puller is shown as being utilized for inserting valve guides which are pulled into place in the bore 16 from below. However, some of these guides are thrust into place from above and hence my puller may be utilized to dislodge or to remove guides of such character.
From the construction it will be seen that the valve stem guide puller is of simple construction, may be quickly applied for use, will effectively pull the valve steiirguide into place and may be quickly removed.
Various changes may be made withoutde parting from the spirit of the invention as claimed.
hat is claimed is 1. A valve guide puller comprising-a cylinder, having a slot formed in one side thereof, ahead resting on the top of said cylinder, a screw having; an internal bore projecting through an opening formed in said head and having a shoulder formed in the lower end thereof, a rod having a head engaging said shoulder, a collar having an opening adapted to lit over the lower endot said rod, said rod having a groove, a pair of segmental rings adapted to be mounted in the groove, said collar having a shoulder adapted to engage said segmental rings, a not carried by said screw adapted to raise said rodand a pin carried by the lower end of said screw adapted to engage; the sides of the slot formed in said cylinder.
2. A valve guide puller comprising a member adapted to rest on the top or" a cyl inder block, a head mounted on said member, a screw extending through said head, a nut engaging saidscrew, a pulling rod carried by said screw, means for holding said screw having an annular groove in the lower end thereof, a pair of segmental rings adapted to lit withinsaid groove and a collaradapted to es gage said segmentalrings. y i
In testimony whereof Ihave signed my name to this specification.
STEPHEN I): MAGIAS.
US34825A 1925-06-04 1925-06-04 Valve-guide puller Expired - Lifetime US1608407A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2671263A (en) * 1950-07-17 1954-03-09 Bert C Hamilton Extractor tool for bearing bushings
US3110958A (en) * 1960-10-04 1963-11-19 Mccord Jesse Lee Bushing removing and inserting tool
US3136187A (en) * 1963-03-28 1964-06-09 Northern Electric Co Tool for reforming vacuum tube type contacts
US3688381A (en) * 1970-03-16 1972-09-05 Rohr Corp Apparatus for installing bushings
US9364945B1 (en) * 2011-04-11 2016-06-14 Erik William Lander Combination press and puller tool
US10974375B2 (en) * 2016-10-07 2021-04-13 Giovanni Andrina Device for extracting and inserting bushes

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2671263A (en) * 1950-07-17 1954-03-09 Bert C Hamilton Extractor tool for bearing bushings
US3110958A (en) * 1960-10-04 1963-11-19 Mccord Jesse Lee Bushing removing and inserting tool
US3136187A (en) * 1963-03-28 1964-06-09 Northern Electric Co Tool for reforming vacuum tube type contacts
US3688381A (en) * 1970-03-16 1972-09-05 Rohr Corp Apparatus for installing bushings
US9364945B1 (en) * 2011-04-11 2016-06-14 Erik William Lander Combination press and puller tool
US10974375B2 (en) * 2016-10-07 2021-04-13 Giovanni Andrina Device for extracting and inserting bushes

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