US1155721A - Key extracting or removing tool. - Google Patents

Description

L. GOLLY.

KEY EXTRACTING 0R REMOVING TOOL.

APPLICATION FILED NOV. I4. 1913.

1,155,721. Patented 001;. 5, 1915.

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KEY EXTRACTING 0R REMOVING TOOL.

APPLICATION FILED NOV. I4. I913.

Patented Oct. 5, 1915.

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LOUIS GOLLY, OF BROOKLYN, NEW YORK, ASSIGNOR OF ONE-HALF 'IO JAMES H.

DEVEREUX, 0F SAGAPONACK, NEW YORK, AND

OF NEW YORK, N. Y.

ONE-HALF TO LANIER MCKEE,

KEY EXTRACTING OR REMOVING TOOL.

Specification of Letters Patent.

Patented Oct. 5, 1.915.

Application filed. November 14, 15 313. Serial No. 800,997.

To all whom it may concern.

Be it known that I, LOUIS GOLLY, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Key Extracting or-Re moving Tools; and I do hereby declare the following to be a full, clear, and exact description of'the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to'characters of reference marked thereon, which form a part of this specifica tron. r

The invention has reference, generally, to improvements in machinists tools or implements; and, the present invention relates, more particularly, to a novel and simply constructed drawing or pulling tool which is adapted to grip the projecting end-portion of a key, such as is ordinarily used with a shaft and a collar or the hub of a wheel 1 mounted upon said shaft, for readily withdrawing the key from the key-way, when it is desired to disconnect the collar or wheel from its fastened position upon the shaft;

The present invention has for its principal object toprovide a novel and simply constructed, as well as an efliciently operating key-removing or pulling tool, which is readily centered upon the shaft, is provided with adjustable gripping jaws which enables the tool to be readilyapplied to the key, and

permits of the key to be easily removed from the key-way, no matter how tightly the key is held in place. Another object of the present invention is to provide a novel construction of key-gripping jaws, and means for mounting and arranging the same in their operative or gripping relation to a key, in such a manner as to retain all the advantages of a strong wedge-like action in forcing the key-gripplng jaws against the key, preparatory to the extracting operation, and at the same time so distributing and limiting the strains of said wedge-like action during the actual I key-extracting operation, that danger of cracking or breaking either the key-gripping jaws or the element in which they are mounted is eliminated.

Other objects of this invention not at this time more particularly enumerated will be clearly understood from thefollowing detailed description of the present invention.

With the various objects of the invention in view, the said invention consists, primarily, in the novel key-extracting or with drawing tool hereinafter set forth; and, the invention consists, furthermore, in the novel arrangements and combinations of the various devices and parts, as well as in the details of the construction of the same, all of which will be more fully described in the following specification, and then finally embodied in the clauses of the claims which are appendedto and which form an essential part of the said specification.

The invention is clearly illustrated in the accompanying drawings, in which z- Figure 1 is a side elevation of a key-removing or pulling tool, showing an embodiment of the principles of the present invention, and an elevation of a portion of a shaft and a wheel keyed upon said shaft, said view illustrating the application of the tool to the shaft and projecting end-portion of thekey, with the gripping jaws of the tool gripping the key. Fig. 2 is a similar view of all the parts represented in said Fig. 1, but showing the gripping jaws in their retracted positions gripping the projecting end-portion of the key, and the latter being shown extracted. Fig. 3 is a top or plan view of the key-extracting or pulling tool; and Fig. 4 is a bottom view of the same. Fig. 5is ahorizontal vertical section of the parts represented in said Fig. 1; Fig. 6 is a transverse sectional representation of the tool. said section being taken on line 66 in said Fig. 5; Fig. 7 is a similar sectional representation of the tool, said section being taken on line 7-7 in said Fig. 5; and Fig. 8 is another cross-section taken on line 88 in Fig. 3.

Similar characters of reference are employed in all of the above described views, to indicate corresponding parts.

Referring now to the severalfigures-of the drawings, the reference character 1 indlcates a portion of ashaft, upon which is mounted a wheel 2 provided with a hub 3, the wheel being tightly fixed upon the shaft by means of the usual key 4.

ber 6, cut away to provide an inverted V- shaped marginal edge-portion, as 7, substantially as illustrated in Fig. 7 of the drawings. The said walls 5 and 6 in this manner 7 form what may be termed a casing closed at one end, and open 1n its lower part of bottom and at its other end. The arc-shaped wall-5 is also provided with a pair of longitudinally extending openings, as 8, of any suitable shape, and the end-wall 6 is also provided with an opening 9. Movably disposed within the chambered portion of said main casting or shell-like body is a gripping jaw-bearing element or block 10, bounded at one end by the vertical wall 11, and at the other end by the suitably-disposed angular wall- portions 12 and 13, see Figs. 1, 2, 3 and 4c of the drawings. Upon its upper portion the said element or block 10 is bounded by a conveXly-curved surface 14 which conforms to the general inner contour of the main casting or shell-like body, as shown in Figs. 6 and S of 'the drawings, the said element or block 10 being also provided with an inverted V-shaped bottom-surface, as 15, corresponding substantially to the marginal edge-portion 7 of the vertical wall 6 of the main casting or shell-like body. From an inspection of Figs. 41 and 6 of the drawings, it will be seen that the said element or block 10is also made in its bottomportion with a chambered part, as 16, formed with a pair of angularly disposed guide-channels or depressions, as 17, and in alinement with said channels or depres sions and in communication with said chamber 16 are a pair of angularly extending stem-receiving ducts or holes 18. Suitably connected with and extending from the angular wall- portions 12 and 13 of the said element or block 10 is a screw-threaded stem 19, said stem extending into and being nonrotatably but longitudinally movable in the previously-mentioned hole or opening 9 in the end wall 6, as will be clearly understood from an inspection of Fig. 5 of the drawings.

Upon that portion of the screw-threaded stem 19 which extends from the outside of the end-wall 6 is a nut 20, for a purpose to be presently more fully described.

Adjustably and movably disposed within the hereinbefore-mentioned guide-channels or depressions 17 and the ducts or holes 18 is a pair of gripping members or elements,

each gripping element consisting, essentially, of a stem 21 having a screw-threaded end-portion 22 and a gripping jaw 23, formed with the gripping teeth or serrations 24. Upon each screw-threaded end-portion i 22 is an anchor or holding nut, as 25, substantially as shown in Figs. 3 and 4: of the drawings. From an inspection of Fig. 6 of the drawings, it will be seen that the element or block 10 isformed contiguous to the guide-channels 17 with shouldered portions 17, and that each ripping jaw 23 is made with correspondingly shouldered portions 23 which register with the shouldered portions 17 so as to prevent rocking of the jaws in their respective guidechannels 17 as will be clearly evident. The screw-threaded stem 19 is also provided, at a point between said anchor or holding nuts 25 and the inner surface of the end-wall 6, with an adjusting or setting-up nut, as 26.

It will be evident that on account/of the open bottom of the main casting or shell-like body, and the angular lower surface-portions of the end-wall 6 and the gripping jaw-bearing element or block 10, the keyextracting or pulling device is readily arranged upon a shaft in the manner illustrated in the several figures of the drawings, and the same tool is equally adapted for extracting both large and small keys from collars and the hubs of wheels mounted on shafts of dilferent sizes.

The manner of operating the key-extracting or pullingtool for the removal of the key from the keyway is very simple, and briefly is as follows :-l-laving placed the tool upon the shaft in the .manner represented in 1, 2 and 5, with the teeth or serrations 24E of the gripping jaws 23 arranged upon the oppo'site faces of the proj ecting end-portion of the key l, the anchor or holding nuts 25 being loosened and thereby spaced away from. the end surface of the block or element 10. The adjusting or setting-up nut 26 is then screwed against the said anchor or holding nuts connected with the respective stems 21, thereby causing the stems 21 to move forward, and owing to the angular disposition and guiding of said stems 21, the gripping jaws 23 are carried into biting relation to the sides of said key 4, and then by drawing rearwardly the element or block 10 by screwing the nut 20 upon the screw-threaded stem 19, "and against the wall 6 as a base, the teeth or serrations 24: of the gripping jaws 23 are caused to embed themselves or bite into the sides ofthe key 4, thus-firmly gripping the same. When the gripping jaws have thus been caused to grip the sides of the key 4, the anchor or holding nuts 25 are again screwed down upon the threaded end 22 of the stem 21, to take up lost motion, and tightly abut the same against the end surface of the block or element 10. hen the parts have thus been adjusted and related the device is ready for the keyextracting operation, which is accomplished by retracting the block or element 10, carrying the gripping-jaws, by screwing the nut-2O upon thestem 19 and against the end-wall 6 as a base, with the result that the marginal encledge portion 27 of the main casting or shelllike body is moved directly against the face of the hub 3 of the wheel, and continuing to turn the said nut 20, the said hub acts as an abutment to any further movement of the said main casting or shell-like body. At this time, however, the jaw-carrying element or block 10 begins to readily move within the chambered part of the said main casting or shell-like body, and the gripping surface of said jaws being in tight gripping or holding engagement with the projecting end-portion of the key 4:, the key is easily and quickly extracted from the key way in the shaft and hub of the wheel. During the extracting operation, performed as above described, it will be apparent that, after the gripping jaws have once been embedded in the key 4, and the anchor or holding nuts 25 screwed tightly against the block or element 10, the gripping jaws are held against any further outward movement in the inclined channels in which they are mounted, consequently the wedge-like action of the same is greatly diminished, and principal strain during the extracting movement is a direct pull upon the gripping jaws and their stems, which is resisted bythe engagement of said anchor or holding nuts with the end of said block or element 10, consequently lateral strains against the sides of the block or element 10 are so diminished and controlled that danger of cracking or breaking either tne block or element 10, or the jaws themselves is eliminated.

I am aware that some changes may be made in the general arrangements and conr binations of the several devices and parts, as well as in the details of the construction of the said parts, without departing from the scope of the present invention as set forth in the foregoing specification and as defined in the clauses of the claims which are appended thereto. Hence I do not limit my present inventionto the exact arrange ments and combinations of the several de vices and parts as described in the foregoing specification, nor do I confine myself to the exact details of the construction of the said parts, as illustrated in the accompanying drawings, except as required by the scope of the appended claims.

' I claim 1. A key-removing device comprising a main shell-like body formed with a lower open portion extending longitudinally of the entire length of said shell-like body for positively seating said body upon a shaft and against the element from which the key is to be extracted, a plurality of gripping jaws within said body, said jaws being adapted to be brought into gripped relation with a portion of the key.

2. A key-removing device comprising a main shell-like body formed with a lower open portion extending longitudinally of the entire length of said shell-like body foropen portion extending longitudinally of the entire length of said shell-like body for positively seating said body upon a shaft and against the element from which the key is to be extracted, a plurality of gripping jaws within said body, a socketed element in which said gripping jaws are movably disposed, means for forcing said jaws into gripping relation with portion of the key, and means connected with said socketed element for bringing said shell-like body into resisting engagement with the element in which the key is located and cooperating with said gripping jaws for the extraction of the key.

4. A key-removing device comprising a main shell-like body formed with a lower open portion for the arrangement of said body upon a shaft and against the element from which the key is to be extracted, a jawblock Inovably arranged in said shell-like body, said jaw-block being provided with guide-channels, and stems slidably disposed in said channels, and a gripping jaw upon each stem, means connected with said stems for forcing said jaws into gripping relation with portions of the key, and means connected with said j aw-block for bringing said shell-like body into resisting engagement with the element in which the key is located and cooperating with said gripping jaws for the extraction of the key.

5. A key-removing device comprising a main shell-like body formed with a lower open portion for the arrangement of said body upon a shaft and against the element from which the key is to be extracted, a jawblock movably arranged in said shell-like body, said jaw-block being provided with guide-channels, stems slidably disposed in said channels, and a gripping jaw upon each stem, each stem being also provided with a screw-threaded portion, an anchor nut upon the screw-threaded portions of said stems, and means connected with said j aw-block for bringing said shell-like body into resisting engagement with the element in which the key is located and cooperating with said gripping aws for the extraction of the key.

key-removing device comprising a main shell-like body formed with a lower open portion, for the arrangement of said body upon a shaft and against the element from which the key is to be extracted, a jaw" block movably arranged in said shell-like body, said jaw-block being provided with guide-channels, stems slidably disposed in said channels, and a gripping jaw upon each stem, means connected with said stems for forcing said jaws into gripping relation with portions'of the key, a screw-threaded stem extending from said jaw-block, and a nut upon said screw-threadedstem, all arranged for bringing said shell-like body into resisting engagement with the element in which the key is located and cooperating with said gripping jaws for the extraction of the key.

7 A key-removing device comprising a main shell-like body formed with a lower open portion for the arrangement of said body upon a shaft and against the element from which the key is to be extracted, a jawblock movably arranged in said shell-like body, said jaw-block being provided with guide-channels, stems slidably disposed in said channels, and a gripping jaw upon each stem, each stem being also provided with a screw-threaded portion, an anchor nut upon the screw-threaded portions of said stems, a screw-threaded stem extending from said jaw-block, and a nut upon said screwthreaded stem, all arranged for bringing said shell-like body into resisting engagement with the element in which the key is located and cooperating with said gripping jaws for the extraction of the key.

8. A key-removing device comprising a main shell-like body formed with a lower open portion for the arrangement of said body upon a shaft and against the element from which the key is to be extracted, a jaw-block movably arranged in said shelllike body, said jaw-block being provided with guide-channels, stems slidably disposed in said channels, and a gripping jaw upon each stem, each stem being also provided with a screw-threaded portion, an anchor nut upon the screw-threaded portions of said stems, a screw-threaded stem extending from said jaw-block, and a nut upon said screw-threaded stem, all arranged forbringing said shell-like body into resisting engagement with the element in which the key is located and coiiperating with said gripping jaws for the extraction of the key, and an adjusting nut upon said last-mentioned screw-threaded stem adapted to be brought into engagement with said anchor nuts upon said gripping jaw-provided stems.

9. A key-removing device comprising a main chambered cylindrical shell formed with an end-wall provided with an opening, said shell having an open bottom and being open at the end opposite said end-wall, and said end-wall being provided with a re slidably disposed in said channels, and a gripping jaw upon each stem, means connected with said stems for forcing said jaws into gripping relation with portions of the key, and means connected with said jawblock and extending through the opening in said end-wall for bringing said shell into resisting engagement with the element in which the key is located and cooperating with said gripping jaws for the extraction of the key.

10. A key removing device comprising a main chambered cylindrical shell formed with an end-wall provided with an opening, said shell having an open bottom and being open at the end opposite said end-wall, and said end-wall being provided with a reversed V-shaped marginal edge-portion, a jaw-block movably disposed in said shell, said block being provided with a lower reversed V-shaped surface, all for the arrangement of said shell and said block upon a shaft and against the element from which the key is to be extracted, said jaw-block being provided with guide-channels, stems slidably disposed in said channels, and a gripping jaw upon each stem, each stem being also provided with a screw-threaded portion, an anchor nut upon the screwthreaded portions of said stems, and means connected with said jaw-block for bringing said shell-like body into resisting engage ment with the element in which the key is located and cooperating with said gripping jaws for the extraction of the key.

11. A key-removing device comprising a main chambered cylindrical shell formed with an end-wall provided with an opening, said shell having an open bottom and being open at the end opposite said end-wall, and said end-wall being provided with a reversed V-shaped marginal edge-portion, a jaw-block mo-vably disposed in said shell, said block being provided with a lower reversed V-shaped surface,all for the arrangement of said shell and said block upon a shaft and against the element from which the key is to be extracted, said jaw-block being provided with guide-channels, stems slidably disposed in said channels, and a gripping jaw upon each stem, means connected with said stems for forcing said jaws into gripping relation with portions of the key, a screw-threaded stem extending from said jaw-block and through the opening in said end-wall, and a nut upon said screwthreaded stem, all arranged for bringing said shell into resisting engagement with the element in which the key is located and cooperating with said gripping jaws for the extraction of the key.

12. A key-removing device comprising a main chambered cylindrical shell formed with an end-wall provided with an opening, said shell having an openbottom and being opened at the end opposite said end-wall, and said end-wall being provided with a reversed V-shaped marginal edge-portion, a jaw-block movably disposed in said shell, said block being provided with a lower reversed V-shaped surface, all for the arrangement of said shell and said block upon a shaft and against the element from which the key is to be extracted, said jaw-block being provided with guide-channels, stems slidably disposed in said channels, and a gripping jaw upon each stem, each stem being also provided with a screw-threaded portion, an anchor nut upon the screw-threaded portions of said stems, a screw threaded stem extending from said jaw-block and through the opening in said end-wall, and a nut upon said screw-threaded stem, all arranged for bringing said shell into resisting engagement with the element in which the key is located and cooperating with said gripping jaws for the extraction of the key.

13. A key-removing device comprising a main chambered cylindrical shell formed with an end-wall provided with an opening, said shell having an open bottom and being open at the end opposite said end-wall, and

said end-wall being provided with a reversed V-shaped marginal edge-portion, a jaw: block movably disposed in said shell, said block being provided with a lower reversed V-shaped surface, all for the arrangement of said shell and said block upon a shaft and against the element from which the key is to be extracted, said jaw-block being provided with guide-channels, stems slidably disposed in said channels, and a gripping jaw upon each stem, each stem being also provided with a screw-threaded portion, an anchor nut upon the screw-threaded portions of said stems, a screw-threaded stem extending from said jaw-block and through the opening in said end-wall, and a nut upon said screw-threaded stem, all arranged for bringing said shell into resisting engagement with the element in which the key is located and cooperating with said gripping jaw for the extraction of the key, and an adjusting nut movable upon said last-mentioned screwthreaded stem adapted to be brought into engagement with the nuts upon said gripping jaw-provided stems.

14. A key-removing device comprising a main shell-like body, a gripping jaw Within said body, means within said body for actuating and bringing said jaw into gripped relation with a portion of a key, and an ad justing means cooperating with said jawactuating means, said shell-like body being provided with an opening for access from the outside of said body to said adjusting means. l

15.'A key-removing device comprising a main shell-like body formed with a lower open portion for the arrangement of said body upon a shaft and against the element from which the key is to be extracted, a plurality of gripping jaws within said body, said jaws being adapted to be brought into gripped relation with a portion of the key, and means cooperating with said jaws for anchoring the same during the extraction of the key, said shell-like body being provided with side-openings for access from the outside of said body to said anchoring means.

16. A key-removing device comprising a main shell-like body formed with a lower open portion for the arrangement of said body upon a shaft and against the element from which the key is to be extracted, a j awblock movably arranged in said shell-like body, said jaw-block being provided with guide-channels, stems slidably disposed in said channels, and a gripping jaw upon each stem, each stem being also provided with a screw-threaded portion, an anchor-nut upon the screw-threaded portions of said stems, a screw-threaded stem extending from said jaw-block, and a nut upon said screw-threaded stem, all arranged for bringing said shelllike body into resisting engagement with the element in which the key is located and cooperating with said gripping jaws for the extraction of the key, said shell-like body being provided with side-openings for access from the outside of said body to said anchornuts.

17. A key-removing device comprising a main shell-like body formed with a lower open portion for the arrangement of said body upon a shaft and against the element from which the key is to be extracted, a jaw-block movably arranged in said shelllike body, said jaw-block being provided with guide-channels, stems slidably disposed in said channels, and a gripping jaw upon each stem, each stem being also provided with a screw-threaded portion, an anchor-nut upon the screw-threaded portions of said stems, a screw-threaded stem extending from said jaw-block, and a nut upon said screwthreaded stem, all arranged for bringing said shell-like body into resisting engagement with the element in which the key is located and cooperating with said gripping jaws for the extraction of the key, and an adjusting nut upon said last-mentioned screw-threaded stem adapted to be brought into engagement with said anchor-nuts upon said gripping j aw-provided stems, said shelllike body being provided with side-openings for access from the outside of said body to said'anchor nuts and also to said adjusting nut.

18. In a key removing device, a main shell-like body, formed with a lower open portion, extending longitudinally the entire length of said shell-like body, whereby said body may be caused. to engage with a shaft and the element from which the key is to be extracted, a gripping jaw within said body, a socketed element in which said jaw is slidably disposed, said socketed element and said gripping jaw having registering shouldered portions to prevent rocking of the gripping jaw within said socketed element.

19. A key-removing device comprising a main shell-like body formed with a lower open portion for the arrangement of said body upon a shaft and against the element from which the key is to be extracted, a plurality of gripping jaws within said body, a socketed element in which said gripping jaws are slidably disposed, said socket-element and said gripping jaws having registering shouldered portions to prevent rocking of the gripping jaws within said socketed element, means for forcing said jaws into gripping relation with portions of the key, and means connected with said socketed element for'bringing said shell-like body into resisting engagement with the element in which the key islOcated and cooperating with said gripping jaws for the jaws away from the key after engagement therewith.

21. A key-removing device, comprising a main shell-like body, formed with a lower open portion, extending longitudinally the entire length of such shell-like body, whereby the said body maybe caused to engage with a shaft and the element from which the key,

entire length of such shell-like body, where-- by the said body may be caused to engage with a shaft and the element from which the key is to be extracted, a socketed element within said shell-like body, a plurality of gripping jaws connected with said socket element, said jaws being adapted to be brought into gripping relation with 'a portion of the key, means for forcing said jaws into gripping relation with said portion of the key, means for preventing the lateral movement of the jaws away from the key after engagement therewith, and means connected with said socketed element for bring ingsaid shell-like body into resisting engagement with the element in which the key is located and cooperating with said gripping jaws for the extraction of the key.

In testimony that I claim the invention set forth above I have hereunto set my hand this eleventh day of November, 1913.

LOUIS GOLLY. V

Witnesses ARTHUR SPINOLO, THOMAS I-IERRON, Jr.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington. D. G)-

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