US1009875A - Valve-removing device. - Google Patents

Valve-removing device. Download PDF

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Publication number
US1009875A
US1009875A US63672711A US1911636727A US1009875A US 1009875 A US1009875 A US 1009875A US 63672711 A US63672711 A US 63672711A US 1911636727 A US1911636727 A US 1911636727A US 1009875 A US1009875 A US 1009875A
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US
United States
Prior art keywords
valve
valve rod
spring
washer
removing device
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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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US63672711A
Inventor
Frederick John Whitelaw
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Individual
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Priority to US63672711A priority Critical patent/US1009875A/en
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    • 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
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/24—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same mounting or demounting valves
    • B25B27/26—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same mounting or demounting valves compressing the springs
    • 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
    • Y10T29/53552—Valve applying or removing
    • Y10T29/53561—Engine valve spring compressor [only]
    • 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
    • Y10T29/53835—Puller or pusher means, contained force multiplying operator having wedge operator

Definitions

  • the invention relates to improvements in valve removing devices for internal combustion engines, as described in the following specification and illustrated in the accompanying drawings that form part of the same.
  • the invention consists essentially in the novel formation of a fork member whereby the valve rod is relieved from the pressure of the spring means for holding the valve to its seat and the retaining pin through the valve rod is cleared for removal.
  • the objects of the invention are, to ob viate the difficulties in removing the retaining pin of the valve rod in order that the valve may be removed from the engine, and
  • Figure 1 is a perspective view of my device shown in position to be inserted between the upper end of the cam rod for operating the valve rod and the spring held washer engaging the cross pin in the valve rod.
  • Fig. 2 is a perspective view showing the device inserted in position holding the spring valve holding member clear of the retaining pin.
  • 1 is the valve spring lifting device preferably formed of a piece of flat metal doubled centrally of its length and having a st *aight under edge 2.
  • the upper edges of the bifurcated memher 1 are formed with angularly sloping surfaces 3 extending upwardly from the bottom edges 2 for a short distance thus forming a pair of points to the end of the device.
  • the said edges then slope at 1 at a lesser angle upwardly to meet the horizontal portions 5, said horizontal portions terminating close to the doubled end of the device in the shoulders 6.
  • this device In the use of this device it is inserted through an opening in the engine frame and the points inserted between the upper end of the cam rod 8 and the washer 9 encircling the valve rod 10, the straight side portions extending to each side of the valve rod.
  • the sloping edges 3 engage the edge of the washer and lift it slightly from pressure against the retaining pin 11 inserted through the valve rod and as the device is forced inwardly the sloping edges 4 raise the washer against the downward pressure of the valve spring 12 until the said washer slides on to the horizontal portions
  • the device is forced inwardly until the edge of the washer 9 abuts the shoulders 6, thus bringing the inner edge 13 of the opening 7 to a position opposite the valve rod, thereby clearing the retaining pin 11 so that the operator may grasp the end of the pin with a pair of pincers and pull it out.
  • the valve rod 10 is of slightly smaller diameter than the cam rod 8 and as the tool 1 is made so that the sides thereof fit closely to the valve red the straight under edges are supported securely upon the top face of the cam rod. Any slight variation in the diameters of valve rods of different engines will not affect the proper use of the tool as it is made of spring metal and will readily spring outward to allow it to be forced into position.
  • a tool such as described will be very useful to the operators of internal combustion engines in removing the valves for inspection or repair purposes, as the space giving access to this portion of the engine is very cramped and it is ditlicultto get hold of the retaining pin while the washer 9 is spring held against it. This device presses the spring upwardly and lifts the washer clear of the pin so that it may be readily grasped and removed.
  • a valve removing device comprising, a bifurcated member adapted to span the valve rod and having beveled upper edges adapted to engage and lift the spring held washer engaging the valve rod pin, and a transverse opening in the back end.
  • a valve removing device comprising, a bifurcated member having straight under edges and upper edges beveled from the points upwardly to a horizontal portion, the
  • looped end of said member having an opening midway of its height to allow access to the valve rod pin.
  • a valve removing device comprising, a bifurcated member formed of a length of flat metal bent centrally and having parallel sides, the side members having the upper edges sloping upwardly from the outer ends to a horizontal portion and said horizontal portions terminating in an upwardly projecting shoulder portion, said bifurcated member having an opening cut in the doubled end thereof extending into the flat parallel sides.

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

Description

F. J. WHITELAW.
VALVE REMOVING DEVICE.
APPLICATION TILED JULY3,1911.
1,009,875. Patented Nov. 28, 1911.
vii/766.566 jnr nlai' FREDERICK JOHN WHI'IELAW, OF TORONTO, ONTARIO, CANADA.
VALVE-REMOVING DEVICE.
oa ers.
Specification of Letters Patent.
Application filed July 3, 1911.
Patented Nov. 28, 1911. Serial No. 636,727.
To all whom it may concern:
Be it known that I, FREDERICK JOHN TVI-irrinnuv, a subject of the King of Great Britain, resident in the city of Toronto, county of York, Province of Ontario, in the Dominion of Canada, have invented certain new and useful ln'iprovements in Valve- Removing Devices; and I do hereby declare that the following is a full, clear, and exact description of the same.
The invention relates to improvements in valve removing devices for internal combustion engines, as described in the following specification and illustrated in the accompanying drawings that form part of the same.
The invention consists essentially in the novel formation of a fork member whereby the valve rod is relieved from the pressure of the spring means for holding the valve to its seat and the retaining pin through the valve rod is cleared for removal.
The objects of the invention are, to ob viate the difficulties in removing the retaining pin of the valve rod in order that the valve may be removed from the engine, and
to devise a simple tool which may be inserted very quickly to lift the valve spring clear of the retaining pin.
In the drawings, Figure 1 is a perspective view of my device shown in position to be inserted between the upper end of the cam rod for operating the valve rod and the spring held washer engaging the cross pin in the valve rod. Fig. 2 is a perspective view showing the device inserted in position holding the spring valve holding member clear of the retaining pin.
Like numerals of reference indicate corresponding parts in each figure.
Referring to the drawings, 1 is the valve spring lifting device preferably formed of a piece of flat metal doubled centrally of its length and having a st *aight under edge 2. The upper edges of the bifurcated memher 1 are formed with angularly sloping surfaces 3 extending upwardly from the bottom edges 2 for a short distance thus forming a pair of points to the end of the device. The said edges then slope at 1 at a lesser angle upwardly to meet the horizontal portions 5, said horizontal portions terminating close to the doubled end of the device in the shoulders 6.
7 is an opening cut into the doubled end of the member 1 and extending inwardly into the sides thereof a considerable dis tance past the shoulders 6.
In the use of this device it is inserted through an opening in the engine frame and the points inserted between the upper end of the cam rod 8 and the washer 9 encircling the valve rod 10, the straight side portions extending to each side of the valve rod. The sloping edges 3 engage the edge of the washer and lift it slightly from pressure against the retaining pin 11 inserted through the valve rod and as the device is forced inwardly the sloping edges 4 raise the washer against the downward pressure of the valve spring 12 until the said washer slides on to the horizontal portions The device is forced inwardly until the edge of the washer 9 abuts the shoulders 6, thus bringing the inner edge 13 of the opening 7 to a position opposite the valve rod, thereby clearing the retaining pin 11 so that the operator may grasp the end of the pin with a pair of pincers and pull it out. The valve rod 10 is of slightly smaller diameter than the cam rod 8 and as the tool 1 is made so that the sides thereof fit closely to the valve red the straight under edges are supported securely upon the top face of the cam rod. Any slight variation in the diameters of valve rods of different engines will not affect the proper use of the tool as it is made of spring metal and will readily spring outward to allow it to be forced into position.
A tool such as described will be very useful to the operators of internal combustion engines in removing the valves for inspection or repair purposes, as the space giving access to this portion of the engine is very cramped and it is ditlicultto get hold of the retaining pin while the washer 9 is spring held against it. This device presses the spring upwardly and lifts the washer clear of the pin so that it may be readily grasped and removed.
What I claim as my invention is 1. A valve removing device, comprising, a bifurcated member adapted to span the valve rod and having beveled upper edges adapted to engage and lift the spring held washer engaging the valve rod pin, and a transverse opening in the back end.
2. A valve removing device, comprising, a bifurcated member having straight under edges and upper edges beveled from the points upwardly to a horizontal portion, the
looped end of said member having an opening midway of its height to allow access to the valve rod pin.
3. A valve removing device, comprising, a bifurcated member formed of a length of flat metal bent centrally and having parallel sides, the side members having the upper edges sloping upwardly from the outer ends to a horizontal portion and said horizontal portions terminating in an upwardly projecting shoulder portion, said bifurcated member having an opening cut in the doubled end thereof extending into the flat parallel sides.
Signed at the city of Toronto, county of York, Ontario, Canada, this 19th day of June 1911.
FREDERICK JOHN WHITELAW.
Witnesses H. DENNISON, F. TUCK.
Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.
US63672711A 1911-07-03 1911-07-03 Valve-removing device. Expired - Lifetime US1009875A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2820284A (en) * 1954-09-22 1958-01-21 Elwyne O Shreffler Spring spreading tool
US3208134A (en) * 1961-11-30 1965-09-28 Superior Pneumatic And Mfg Com Method of replacing worn parts in automobile assemblies and the tools therefor
US4142282A (en) * 1976-09-17 1979-03-06 Caterpillar Tractor Co. Method for assembling a cartridge-type valve
US10631999B2 (en) 2017-06-30 2020-04-28 Elevation Spine, Inc. Systems and methods for inserting an interbody spacer and bone plate assembly

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2820284A (en) * 1954-09-22 1958-01-21 Elwyne O Shreffler Spring spreading tool
US3208134A (en) * 1961-11-30 1965-09-28 Superior Pneumatic And Mfg Com Method of replacing worn parts in automobile assemblies and the tools therefor
US4142282A (en) * 1976-09-17 1979-03-06 Caterpillar Tractor Co. Method for assembling a cartridge-type valve
US10631999B2 (en) 2017-06-30 2020-04-28 Elevation Spine, Inc. Systems and methods for inserting an interbody spacer and bone plate assembly

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