US26330A - Ukited - Google Patents

Description

GQM. ATHERTON, or FRIENDsvILLE, ILLINOIS.

HUB BORING AND MoRTIsING ivrscrrritra` Specicaton of Letters Patent N o. 26,330, dated December` G, i i

To all 'whom 'it 'may cof/teem:

Be it known that I, G. M. ATHEnToN,of

Friendsville, in the county of Wabash and State of Illinois, have invented certain new and useful Improvements in Machinery for Boring and Mortising Hubs; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, forming a part of this specification, in which- Figure 1, represents a plan view of the machine, Fig. 2, is an end elevation of the saine, Fig. 3, is a side elevation, and, Fig. 4, isa perspective view of the device for operating the auger.

Similar letters of reference indicate corresponding parts in the several figures.

My invention relates to certain novel improvements in boring and mortising hubs, for vehicles, said improvements consisting inarranging upon the inside of one `of the standards, two spring rods, one on each side of thereciprocating gate, to which rods are pivoted two pawls, which may be made to engage alternately with suitable racks `upon the carriage by a lever working in a guide, i

so as to move the carriage simultaneously with the upward movement ofthe reciprocating gate for carrying the mortising chisel, all as hereinafter described.

To enable those skilled in the art to fully understand my invention, I will proceed to describe its construction and operation.

A, represents a fixed framework, serving as guides for a traveling carriage, B, and to support the mechanism for boring andmortising the hub, which is represented, by C, as being centered between two posts D, D on the traveling carriage B, the post D', is capable of adjustment in a slot in the carriage B, for adapting diii'erent lengt-hs of hubs, it is fixed rigidly in place aiter the hub has been centered, by wedges a, a.

One end of the hub bears against an index wheel E, the diameter of which is greater than that of the hub C, with its periphery armed with projecting teeth or p1ns.` The hub is xed to this wheel and turns with it, ZJ, is a spring plate one end of `which is fixed to a bent arm projecting out from post D, while the other end is raised by an arm c, projecting from a spring rod F, as this rod is drawn up.` The plate Z2, has a small perforation through it which when it is not acted L*""iizipon by the arm c, passes over one of the pins projecting from the index wheel, and

prevents this wheel and the hub `from movj ing,

On the lower endofvthejrod hook or pawl e, whichis held up againstlthe.,

periphery of the indexwheel byaspring Gr, t secured behind the arm anda'cting upon` the end of aguide` for" this rod f,is another guide for the rod F,1and `g,stijll anotherfor keeping the rodi positioirfwhile it is being j raised or depressedwhichcisl done by `means of a bent `lever,'I-I, pivoted on top of postD. l j. Now by depressing the handleof the `lever the rod F,will be raised, which, by means of the hook@V actinguponithe pins projecting j j from index `wheel I*l,`uand the arm cacting upon the spring Spia-te b,fthej hubmlaybe anothermortise in it.` By this arrangement `rotated the required `distance for? making it is only necessary to `movethe indexwheel"` E, for a space of one `cr twopins aftereach, y mortise 1s made, 1n orderto `cause the fniortises to be all cutjiat eqpualfdistances.apart.` upon the hub; `I i u The boring andinortisimgtools are snp ported by a frame composed oftwo fup- 1 rights A,1wrth crosspiece connectmgithese j is a horizontalbevelspur wheel J, withwa hollow shaft,';throughl which `works, the austandards A. To `the"shaftoffthis latter bevel wheel is connecteda cranlrliandled, `1

for giving motionto the auger K. `Tlie au-` j ger K, receives a` rotary motion ,and at-the j same time 1s forcedinto `ordrawn from the` hub by means of a screw thread,`gcut onsite upper end the stem ofthe augerljfitting in a f l square soc tet in the'shatt of ,bevelwheel 1J.

The raising and depressing of theaugerdurf" C ing the motion ofthe bevelwheel J, ,isef` j fected by two fixed `spring arms d, d, which` clasp the screw end of the augenandjare 1` j held tightlyin the thread of the screw `by a clamp e. This device I dont desire to clailnyl` therefore it is not necessary to particularize it, the operation being to rotate` the auger and at the same time to raise or depressitso "3 l. as to eiect the operation of boring, by sirn-` l ply turning the'crank J p L, is a vertical reciprocating gatejfor carrying the mortising tool N, shown in red j lines Fig. 2, workingin` suitable guides in standards A and operated by a, lleverjL/a I j placed above it and pivoted to a standard l on one side of the machine and connected to the gate L, by a jointed rod. The lever works in a vertical slot in the opposite standard. On the inside of this latter standard and shown by red lines, Fig. 3, are curved rods P, P', pivoted to said standard near the bottom of the same and attached to springs R, R', at their tops which springs pass through boxes, 70,76, furnished with set screws for tightening the springs R R'.

Y S, S' are pawls pivoted to the rods P, P' and T, T', are racks projecting up from the Vcarriage B, which are acted upon by the pawls so as t-o move the carriage back and forth as the mortising of the hub proceeds. These pawlsare operated through the medium of rods P, P', and springs R R', by arms V, V', which proceed out von each side of the reciprocating gate L, the gate being raised and depressed by the lever L'. On the outside of this standard is aV lever M, operated by a rod M'; the ends of this lever are turned under the pawls S, S', so that either onel of said pawls, can be disengaged from the racks T, T', by simply moving the lever back or forth; these pawls work in opposite directions.

The operation of boring and mortising the hub is as follows: The operator takes hold of the crank J", and rotates the auger K, which is driven into the hub at the same operation, vit is then withdrawn and the ycarriage moved to forward by a lever W,

moved from the hub and the mortising tool is depressed by the lever-L', and elevated again when the carriage is moved forward and backward by the action of the pawls S, S' upon the racks T, T', as above described. The mortising tool N, can be rotated by a handle attached to it so as to bring its beveled side opposite the work to be cut. Vhen the carriage has moved forward the length of the mortise the motion is reversed by throwing the opposite pawl in play with its rack. When the boring is to be performed the pawls are both disengaged from the racks upon the carriage and '1t is moved by the hand lever XV, as before described.

' This machine is strong, simple and operates with great efficiency. Any sized hubs may be mortised with great eXactness and rapidity. By removing the posts on the carriage on which the hub is connected a rest, or table, can be substituted, and the machine used for various species of mortising work.

What I claim as my invention and desire to secure by Letters Patent, is-

The arrangement of two pawls S, S', with spring rods P, P', and arms V, V, projecting from the reciprocating gate L, for operating the same, in combination with lever M, for relieving either one or both pawls from racks T, T', the whole being arranged and combined for the purpose of moving the carriage with the hub up to the mortising tool as set forth.

Gr. M. ATHERTON.

Vitnesses JAS. LEEDS, B. T. ATHERTON.

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