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Publication numberUS1368446 A
Publication typeGrant
Publication dateFeb 15, 1921
Filing dateMar 31, 1919
Publication numberUS 1368446 A, US 1368446A, US-A-1368446, US1368446 A, US1368446A
InventorsPeteb Madsen
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1368446 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)



368,446. Patented Feb. 15,1921.

' to the person making PETER KADBEH, 01' CHICAGO, ILLINOIS,



Specification of Letters Patent.

Patented Feb. 15, 1921.

Application filed March 31, 1919. Serial No. 288,869.

To all whom it may concern:

Be it known that I, Pn'mn MADSEN, a citizen of the United States, and a resident of the city of Chicago, in the county of ook and State of Illinois, have invented certain new and useful Improvements in Valve- Tools; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the numerals of reference marked thereon, which form a part of this specification.

In removing or mounting split washers or ins for engine valves considerable trouble is often experienced, caused primarily by slipping of the tool used in holding the strong valve spring compressed, thereby releasing the valve spring and causing injury the valve changes.

To obviate accidental injuries when engine valve washers or pins are being replaced, an improved type of an engine valve tool has been devised, whereby engine valve washers or pins may be conveniently removed or mounted in place without subjecting a person making the change to accidental injuries. 7

It is an object of this invention to provide an improved engine valve tool permittin convenient mounting or removal of was ers or pins.

Another object of the invention is the construction of an engine valve tool wherein clamping jaws are adapted to be adjusted by a slidable member to engage around clamp, and then release an engine valve pin.

It is also an object of the invention to construct an engine tool having a member slidably enga ed on the clamping arms whereby the c ampin jaws at the end of said arms are adapts to securely clamp an engine valve pin therebetween when the member is slid rearwardly a certain distance, a continuation of said rearward movement causing the clamping jaws to move apart to release the pin.

A further object of this invention is the construction of a tool wherein connected clamping tongs have a member slidable thereon and adapted by movement on said tongs to engage around, clamp, and then eject a nut or washer.

It is an important object. of this invention to provide a simple and effective tool adapted primarily for mountin and removing engine valve pins or wasiers without subjecting an operator to accidental inur es due to slipping of the engine valve springs.

Other and further important objects of the invention will be apparent from the disclosures in the specification and drawings.

The invention (in a preferred form) is illustrated in the drawings and hereinafter more fully described.

On the drawings:

Figure 1 is a top plan view of 'a tool embodying the principles of this invention;

Fig. 2 is a side view thereof;

Fig. 3 is a sectional view taken on line 3-3 of Fig. 1;

Fig. 4 is a plan view of the tool showing the slide member in position releasing an engine valve pin;

Fig. 5 is a vlew of the clamping end of'the tool showing the operation in dotted lines;

Fig. 6 is a plan view of a modified form of the device; and

Fig. 7 is a section taken on the line 7--7 of Fig. 6.

As shown on the drawings: 1

The tool comprises a flexible looped metal strap 1, the ends of which converge or are bent toward one another to form pivoted arms or tongs 2. the free ends of which are curved outwardly to aiford jaws 3. The ends of the jaws are bent to form gripping flanges 4.

Disposed within the metal loop 1, which forms the handle of the tool, is a slidable adjusting member embracing a metal strap formed as shown in Fig. 1, to provide a finger loop 5. formed in the bight end of said member, between side arms 6, the forward portion 7 of which converge with the ends bent to lie adjacent one another to form an e'ecting tip 8. As shown the slidable mem er 5-8 may be formed of one adjustably disposed within the handle and in sliding en agement with the tongs 2, whereby the c amping jaws 34 are a apted to be e erated depending upon the movement of tlie slidable member.

shown in Fig. 4, the reference numeral 10 indicates an engine valve pin, in released position between clamping jaws of the tool. A split or open on e valve washer 11 is shown in 'F g. 5, amped between the rounded jaws 3. in position to be ejected by the e'ector 8, when the slidable member is move forwardly to cause separation of the jaws as shown by the dotted lines.

Figs. 6 and 7 show a modified form of tool in the form of a wrench and comprising a rigid metal arm or tong 12, having integrally formed on one end thereof a transversely passaged head or collar 13, on which is pivotally mounted by means of a pivot pin or bolt 14, one end of an arm or tong 15. Integrally formed on the free end of each of the tongs 12 and 15 is a jaw 16, provided with a notch 17. The notches 17 are disposed opposite each other to permit a nut to be easily gripped between the jaws 16.

A slidable member is movably engaged on the tongs 12 and 15, to facilitate o eration of the clamping jaws. The sli able member embraces a U-shaped or channelshaped metal base 18, having integrally formed centrally on the interior thereof a rib or boss 19, the upper end of which is flat and disposed in the plane of the upper ends of the base sides. A top piece or plate 20 is. removably secured across the to of the base by means of screws 21, which thread into the boss 19. As shown in Fig. 7, the tongs 12 and 15 are ositioned on opposite sides of the boss 19. ovement of the slidable member on the wrench tongs serves to move the wrench jaws 16 to either engage or release a nut. l

The operation is as follows:

To insert a pin in the apertured projecting stem of an engine valve the tool is adjusted' to separate the jaws 3-3, by gripping the too by the handle 1, with the orefinger of the persons hand projecting through the finger loop 5 of the s idable member and menu said member forwardly by the forefin r. he open jaws are placed oil-opposite si es of the pin 10, and the slidable membe the forefin r to an intermediate or middle position 0 adjustment in which the guide members 9, slidable upon the tongs 2, have forced the clamping jaw gripping flanges 4 tightly together to securely grip the pin 10. In the intermediate position of the slide member the tong portions 22 contact each other. The pin thus held secured between the jaw flanges 4, is next inserted through the pin.

r 5-8 is pulled rearwardl bvthe opening in the pro ecting upper end of the engine valve stem, the spring of the engine valve first bein held compressed by any suitabletool. 0 release hold of the pm 10, after it has been inserted through the valve stem, the slide member 5+8 is pulled rearwardly still fartherinto arear o sition of adjustment, shown in'Fig. 4. his last movement of the slide member acts to force the tong portions 22 more tightly together, flexing the portions between 22 and the handle 1. This will cause the portions 3 and 4 to rotate about the contacting ends of 22 as a pivot and open the gripping flanges 4, whereby the pin 10 is'released and the tool removed from engagement with the engine valve parts. The engine valve spring is then released.

To remove a pin from an engine valve the engine valve s ring is first compressed and the slide mem r of the tool is moved to its forward position to separate the jaws which are then engaged on opposite sides of The slide member 58 is then pulled rearwardly into its intermediate or locking position, wherein the jaws are forced together to clamp the in therebetween. The pin is then removed y simply pulling the same out of the valve stem opening.

In using the improved tool for mounting or removing an engine valve pin, it will be particularly noted that the fingers of a person performing the operation are not brought into close on agement with the engme valve parts, an as a consequence are. protected against injury should the tool, holding the valve spring compressed, be accidentall released to allow the spring to snap bac into normal position.

As shown in Fig. 5, the tool is disclosed havmg a split engine valve washer 11, clamped between thej aws 3. To release the washer after it has been positioned around an engine valve stem, the slide member 5-8 is moved forwardly from the full-line position shownv in 5, until the guides 9 enga e the jaws 3. ins movement of the sli e member causes the tip 8 to contact and eject the washer 11 from between the jaws.

In the modified wrench form of the device, shown in Fig. 6, the pivotall connected tongs 12 and 15 are adjuste spect to each other by sliding the slide member 18-20 forwardly or rearwardly to adjust the jaws 16 to either gri or release a nut. Forward movement of t e slide memmer will cause the boss 19 to separate the aws 16, to permit the same to engage on opposite sides of a nut. To gri permit rotation thereof, the sli e member is moved rearwardly thereby forcing the jaws to ther.

umerous details of construction may be varled through a wide range without departing from the principles of this invention, and it is therefore not purposed to limit the invention granted otherwise than necessitated by the prior art.

I claim as my invention:

1. A tool comprising a loop of resilient material, jaws inte ral with the sides of said loop at the free en s thereof, portions of the sides of said loop conver ing toward their free ends, a sliding mem or engaging said con rging portions, each side of said loop ha-Jzng a and between the conver ing portion and the jaw whereby motion 0% the sliding member away from the jaws will cause the jaws to approach and to grasp whatever object is between them, further motion of the sliding member in the same direction will cause the nearer ends of the converging portions to contact, and still further motion of the sliding member in said direction will cause the jaws to open.

2. A tool of the class described comprising a pair of connected converging clamping members, and substantially elliptical adjusting means slidably engaged thereon, and means cooperating therewith whereby when the adjusting means is moved rearwardly from a forward openin position to an intermediate position sai clamped together and whenit is moved to a rear position said members are again separated.

3. A tool comprising connected members having clampin jaws at the free ends thereof, means inclu ing cam surfaces converging toward said free ends and a member slidably engaging said surfaces, whereby, when said sliding takes place in one direction up to a predetermine point, the jaws will ap roach each other, and means coacting wit said first-named means to cause said 'aws to recede from each other when said s idin continues in the same direction beyon said point. I

4. A tool comprising a pair of movably connected members converging forwardly to a point of engagement, jaws on the free ends thereof, and an adjusting means slidably engaging said members and adapted to be moved forwardly from a rear osition, wherein said members contact eac other and said jaws are separated, to an intermemembers will be diate position wherein the members and said 'jaws both respectively engage each other, further forward movement of said means acting to separate both the jaws and said members.

5. A tool embracing a pair of resilient tongs, clamping jaws at the free ends thereof, a finger o erated member slidably engaged with said tongs to ad'ust said jaws with respect to each other, an an ejector on said member and actuated thereby to contact with the object held by the jaws to eject the same.

6. A tool embracing handle, resilient arms 0 integral with the free ends of said manually operable means slidably engaged on said arms within said handle, and an ejecting tip formed on said means adapted to push an article from between said jaws when the jaws are separated by movement of said means. a

7. A tool comprising a looped resilient handle, converging arms formed thereon, 'aws on the free ends of said arms, and adusting means slidable between the arms, said adjusting means converging toward the jaws and toward the handle.

8. The combination with a pair of clamping members, of means slidable between said members for adjusting the same, and means on the slidable means between the clamping members actinglto force the clamped object from between t e members.

9. A pair of tongs, means slidable between the members of said pair for adjusting them&

and means controlled by the first-name means for thrusting away the object held by the tongs.

10. A pair of tongs, a carriage slidably mounted on both members of said pair, and a member carried by the carriage and thrust between the free ends of the tongs upon travel of the carriage toward said ends.

In testimony whereof I have hereunto subscribed my name in the presence of two subscribing witnesses.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2454601 *Apr 12, 1945Nov 23, 1948Gallagher William MNutcracker with an adjustable sliding jaw
US2474167 *Oct 13, 1944Jun 21, 1949Raymond R RundellReceptacle holder
US2474222 *May 15, 1945Jun 28, 1949Carrier Hermenegilde PSplit ring retainer extractor
US2483379 *Aug 19, 1946Sep 27, 1949Waldes Kohinoor IncMeans for handling retaining rings
US2722148 *Dec 6, 1954Nov 1, 1955Woyton Thomas MFastening holder and starter with resilient arms
US2768668 *Sep 14, 1954Oct 30, 1956Santosuosso James WGolf bag and support
US2812675 *Jun 20, 1955Nov 12, 1957Aktibolaget SveaexpInstruments for removing tools from tool holders
US3074449 *Jan 9, 1961Jan 22, 1963William MikulasDevice for opening nuts
US5143414 *Sep 24, 1990Sep 1, 1992Rosellini Davey GMedical device for holding hypodermic syringe needle caps
US5156431 *Mar 19, 1991Oct 20, 1992Lowe Thomas KNeedle cap clamp
U.S. Classification29/249, 279/43, 81/112, 7/900, 294/99.2, 81/487
International ClassificationB25B27/20, B25B27/24, B25B9/02
Cooperative ClassificationB25B9/02, Y10S7/90, B25B27/24
European ClassificationB25B9/02, B25B27/24