US899701A - Spoke-extractor. - Google Patents

Description

L-'P-,L-MRBNT- 'i .sPoKr'pXTAoTQm APPLIOATION FILED um. 1,1908; f

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sTArns PATENT-r ornion LOUIS P. PARENT, OF WATERBURY, CONNECTICUT, ASSIGN'OR OF ONE-HALF TO PETER R.

LAROCQUE, OF WATERBURY, CONNECTICUT.

SPOKE-EXTRAGTOR.

LSjziecication of Letters Patent.

Patented Sept. 29, 1908.

Application Vfiled August 1, 1908. Serial N o. 446,460.

To all whom it may concern:

Be it known that I, LOUIS P. PARENT, a citizen of the United States, residing at Waterbury, in the county of New Haven and State of Connecticut, have invented a new and useful Improvement in Spoke-Extractors; and I do hereby declare the following, when taken in connection with the accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in

Figure 1 a side view of a spoke extractor constructed in accordance with my invention. Fig. 2 a top or plan 'view partially in section of my improved means for exerting power to remove the spoke. Fig. 3 a longitudinal sectional view of the same. Fig. 4 a sectional view on the line x-x of Fig. 3. Fig. 5 a detached view partially in section illustrating the head and jaws carried thereby.

This invention relates to an improvement in spoke extractors and particularly to1 the extractor shown and described in Letters Patent of the United States No. 879,308 granted February 18, 1908. The spoke extractor shown and described in this patent comprises a head, an operating handle therefor, carriers swiveled in opposite sides of the head, a slide mounted in said carriers, and a fulcrum brace pivoted to the lower end of the head, the jaws being adapted to grip the spoke, the fulcrum bearing against the hub and so that when the head was turned by its operating handle the spoke would be extracted. In some cases these spokes are very firmly seated in the hub and great power is required to remove them.

The object of this invention is to combine an auxiliary lever with a head by which its upper end may be forced away from the hub and hence greater power exerted to remove the spoke; and the invention consists in the construction hereinafter described and particularly recited inthe claim.

As in my previous patent I employ a head 2 recessed at its upper end to receive an operatinghandle 3 and formedwith a central opening 4. Pivoted to the lower end of the head is a fulcrum 'brace 17, and within the head and swiveled on opposite sides thereof are carriers 5 adapted to support gripping jaws 11 and 12 which are free to slide back and forth in the carriers. These jaws taper and are adapted to grip the spoke 13 and so that when the fulcrum brace 17 is engaged with the hub 14 and force applied to the handle 3 to turn the yhead outward or away from the hub, the spoke will be extracted.

My improvement consists in forming the head 2 with ears 18 between which is pivoted a frame 19 formed with a longitudinal slot 20 and trunnions 21. Longitudinally movable in the slot 20 ofthe frame 19 which has guiding ribs 22 and 23, is a rack 24 grooved on opposite sides to engage with the ribs 22 and 23. The outer end of this rack is pivoted to a shoe 25 the face of which is curved to engage with the hub 14. Extending through the trunnions 21 is a pin 26 on which is mounted a pawl 27 adapted to engage with the teeth of the rack 24. This pin 26 extends beyond the trunnions and on it is `mounted a yoke 28 provided with an operating handle 29, and formed at its ends with downwardly extending arms 30 and 31 which are slotted to receive the ends 32 of a U- V shaped sliding pawl 33 which is pivoted to the arms. As this sliding pawl is carried by the yoke at a point below the pivot on which the yoke turns, it follows that when the yoke is turned this sliding pawl will be moved. When the jaws 11 and 12 are engaged with the spoke and the fulcrum brace 17 brought to a bearing against the hub, the shoe 25 will also be brought to a bearing on the hub at a oint opposite the end of the fulcrum brace.

f then the hanadle 29 be turned away from the handle 3, the sliding pawl 33 will be moved toward the head 2 and engage with one of the teeth of the rack 24, the rack meantime being held stationary by the pawl 27. Then drawing the handle 29 toward the handle 3 or holding the handle 29 and forcing the handle 3 toward it, the yoke 28 will turn on-its pivot and force the rack toward the hub or force the upper end of the head 2 away from the hub, and hence extract the s o e.

pIt will be seen that when the sliding pawl is moving the rack the pawl 27 rides free over the teeth of the rack; then when the sliding pawl is moved in the oppositedirection the pawl 27 holds the rack against movement. It will thus be seen that I am enabled to exert great power to the upper end of the head and to force it away from the hub and so extract the spoke.

I claim 1. The herein described spoke extractor comprising a head, jaws carried thereby, a fulcrum brace pivoted to the lower end of said head, a frame pivotally connected with the upper end of the head, a rack sliding in said frame, a pawl mounted in the frame and adapted to engage with said rack, a yoke pivoted to the frame and carrying a moving pawl also adapted to engage with said rack, substantially as described.

2. The herein described spoke extractor comprising a head, sliding jaws mounted therein, a fulcrum brace pivoted to the lower end of said head, a frame pivotally connected to the upper end of said head, said frame slotted, a rack longitudinally movable in said frame, a pawl mounted in said frame and adapted to engage with said rack, a yoke pivotally connected to said frame and having downwardly projecting arms, a sliding' pawl having its ends pivotcd to said arms and adapted to engage with the teeth of said rack, and a shoe carried by the end of said rack, substantially as described.

In testimony whereof, I have signed this specication in the presence of' two subscribing witnesses.

LOUIS P. PARENT.

Witnesses:

MARGARET A. MoDRRMo'r'r, U. G. CHURCH.

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