US340637A - storie - Google Patents

Description

3 Sheets-#Sheet l.

Patented Apr. 27,1886.

(No Model.) I

.J. D'. STORIE.

GRINDINGMAGHINERY.

3 Sheets-Sheet 2.

(No Model.)

J. D. STORIE.

GRINDING MACHINERY.

Patented Apr. 27, 1886.

3 Sheets-Sheet 3.

(No Model.)

J. D. STORIE.

GRINDING MACHINERY.

No. 340,637. Patented Apr. 27, 1886.

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UNITED STATES PATENT OFFICE.

JAMES D. STORIE, OF OSHAYVA, ONTARIO, CANADA.

GRINDING MACHINERY.

SPECIFICATION forming part of Letters Patent No. 340,637, dated April 27, 1886.

Application filed October' Q9, 1855. Serial No. 181,204. (No model.) Patented in Canada November 16, 1885, No. 22,809.

To all whom it may concern.-

Be it known that I, JAMES DoUGLAs STORIE, of the town of Oshawa, in the county of Ontario, in the Province of Ontario, Canada, mechanic, have invented certain new and useful Improvements in Grinding Machinery, of which the following is a specification.

The object of the invention is to design a machine for holding castings during the period that the gates or ragged edges are being ground off, and which machine shall work automatically from the time that the castings are placed in position until they have been properly ground and discharged out of the machine 5 and it consists, essentially, of a wheel having recesses formed in it to receive the castings to be ground, which wheel is brought in proximity to an emery or grinding wheel, so that when the two revolve, as hereinafter specified, the gate or ragged edge of the casting is held in contact with the grinding-wheel for a sufficiently long period to remove the gate or ragged edge, but no longer, after which the casting is immediately discharged from the recess, aseries of recesses being placed in the wheel and the whole being arranged with compensating mechanism, so that the operator shall have nothing to do but insert into the machine the castings to be operated upon.

Figures l and 2 are perspective views of the machine from opposite sides. Fig. 8 is a view of one-half of the holding-wheel. Fig. 4 is an end View of the holding-wheel. Fig. 5 is asection of friction-pinions F G. Fig. 6 is a detail of the friction pressure spring and holder. Fig. 7 shows a finished link.

Although it is not absolutely necessary for the satisfactory working of my machine that the holder-wheel should derive its motion from the spindle of the emery-wheel, it is at the same time better that the same motor should be employed. I have therefore exhibited my device arranged to derive motion from the spindle of the emery or grinding wheel.

A represents an ordinary emery or grinding wheel, which is keyed or otherwise fastened to the shaft C,suitably journaled,preferably in brackets D and E. The shaft C is extended beyond the emery-wheel A, and has screwed or otherwise fastened on its end the frictionpulleys F G, from which the motion of the shaft O is conveyed to the friction-gear for driving the holding-wheel. It will be noticed that the friction-pulley F is smaller in diameter than the friction-pulley G, and, as-represented in Fig. 5, they are preferably made in one casting, and that the screwed holes f and g made in them are designed to tit and screw upon the screwed end ofthe shaft G, so that they may be readily reversed-that is to say, the small frictionpulley F may be made to take the place of the larger friction-pulley G by simply reversing the friction-pulley.

In Fig. l I show the friction-pulley F located to come in contact with and drive the frictionpulley H; but if I wish to make the frictionpulley H revolve faster I merely reverse the pulleys F G, so as to bring the friction-pulley G into action.

I may mention here that a cone-pulley of varied diameter might be substituted for the friction-pulleys F G, as the sole object of the said friction-pulleys is to increase or decrease the speed of the pulley II. The friction-pulley H is suitably journaled, as hereinafter specified, and has fixed to it or its spindle a friction-pulley, I, designed to come in contact with the friction pulley J,keyed or otherwise fastened tothe shaft K,wl1ich is suitably jonrnaled, as indicated. Ou the opposite end of the shaft I{,I key or otherwise fasten the holding-wheel L.

It will be noticed that owing to the arrangement of friction-gearing, as specified, the hold-` ing-wheel L will be caused to revolve at a much slower speed than the emery or grinding wheel A, and that as they revolve in the same direction anything held by the holdingwheel L and brought in contact with the wheel A will be effectually acted upon by the said wheel A. It will be noticed that the holdingwheel L has a number of recesses, M, extending from its periphery to its hub. These recesses are made to correspond in shape with the castings they are intended to receive. In the wheel illustrated they are designed to receive the links of a chain, as hereinafter referred to. A spring, on, is inserted in an annular recess surrounding the hub of the wheel L, so that it shall form a spring-bottom for each recess M.

For the convenience of the manufacturer of the wheel L,I divide it into two equal sections,

the interior of cach being represented by Fig. 3, and which, when brought together, appear as shown in Fig. 4. The notches k, made on the outside of each recess M, are located on alternate sides of the centerline of the wheel L, so that the castings held by them shall not follow each other in an exactline, which, if they did, would canse the emery-wheel A to be worn all on one side.

As before stated, the wheel L is designed to receive the links N lof a cast-metal chain.

As indicated in Fig. l, the gate n is being ground off the link N by beingheld in contact with the revolving emery-wheel A, which revolves, as indicated by arrows, in the same direction as the wheel L, the wheel A being caused to revolve for the purpose of grinding, while the wheel L is caused to revolve at just such a speed as will hold the link N against the emery-whecl A sufficiently long to remove cleanly the gate a. It will of course be understood that the rotating speed of the wheel L will be altered to suit the character of the gate n or ragged edge to be removed from the link N, and it is for this object that I provide the reversible friction-pulleys F and G.

O and F are arms pivotcd on the shaft K, one on each side of the friction-pulley J, and aslot in each of the arms vO and l is made to receive the axle-boxes q of the axle Q, en which the friction-pulley H and friction-pulley I are fixed. The axle-boxes q, which are located, as before stated, one in each of the slots made in the arms O and I), respectively, are held in position by the pressure of the springs 0,which are held, one for each box, by the adjustable sp rin g-holders p,which are secured to the arms O and P, as indicated in Figs. l and 2, by suitable setscrews. It is not intended that the boxes q should reach the bottom of the slot made in the arms O and I), as the frictionpulley I, coming in contact with the periphery of the friction-pulley J, prevents them.

The object of the adjustable holder p and spring o is to hold the friction pulley I against the pulley J with sufficient pressure to produce the necessary friction between the said friction-pulley I and pulley J, the object of making the spring p adj ustable being to permit the pressure between the friction-pulley I and pulley J to be readily adjusted.

It will be noticed that the arms O and P are set on an inclination and are connected together at the top by the link R, from which a weight, S, is suspended on a cord or rope, 1. A spring, s, is inserted in the rope r. rlhe friction-pulley H is held in contact with the pinion F by the action of the weight, which may be increased or decreased according to the pressure required to form the necessary frictional contact between the two, while the spring s will relieve the machine from any undue strain without jerking the weight S. In the event of the motion ofthe holding-wheel L being arrested by the undue pressure of the casting against the emery-wheel A, the motion of the friction-pulley J will of course also be stopped,

but as the friction-pulley H will continue to revolve, the friction-pulley I, connected to it,

will naturally roll up or mount upon the pulley J, and thus the pulley I-I is removed from contact with the friction -pulley F, and all strain on the holding-wheel L is thus removed until the operator adjusts the machine to proceed. It will be observed that the brackets X, which carry the shaft K, are supported upon a table, U, which is adjustably carried in the frame XV, and is operated by the handwheel V. By this arrangement the distance between the holding-wheel L and the grindingwheel A may be adjusted to suit the size of the casting being operated on; and, further,

this may be done while the machine is in operation, as the contact between the pulley II and friction-pulley F will not in any way be affected by the said adjustment of the table, as will be understood on reference to Figs. l and 2. From this description it will be seen that all the operator of the machine has to do is to insert into the recesses M the castings to be acted upon, as these castings are carried round until their gates or ragged edges are brought into contact with the revolving emery or grinding wheel A, the speed of the wheel L being arranged to hold the casting just suficiently long against the wheel A to remove the gate or ragged edge, when the casting so finished is carried past the wheel A and drops out of the recess onto the door, either by its own gravity, or, should it be caught in the recess, the elasticity of the spring m will be sufficient to start and discharge it. This spring also acts as an elastic stop against which thelinks press during the process that the gates or ragged edges are being ground off. 4

Vhat I claim as my invention isl. The combination, witha grinding-wheel, of a holding-wheel, L, having a series of recesses, M, and notches L', as shown and described.

' 2. The combination, with agrinding-wheel, of a wheel, L, having a series of recesses shaped to receive the castings to be acted upon, in combination with mechanism, substantially as described, designed to impart a revolving movement to the wheel L, so that each recess shall be brought opposite to and the casting contained therein held against the said grinding-wheel sufficiently long to remove from the surface of the said casting the gate or ragged edge, as specified.

3. A wheel, L, having a series of recesses made in it and fastened to the axle K, on which the wheel J is secured, the arms O I), journaled on the axle K, designed to support the friction-pulley I, which is held in contact with the pulley J, in combination with the revolving pinion designed to impart motion to the pulley H, which is secured to the friction-pulley I, substantially as and for the purpose specified.

4. A wheel, L, having a series of recesses IOO Igo

made in it and fastened to the axle K,on which the pulley J is secured, the arms O P, journaled on the axle K, designed to support the pulley H and friction-pulley I, which latter is held in contact with the pulley J, in combination with the Weight S, connected to the arms O P by the rope R, and spring s, designed to hold the pulley H against the pinion F.

5. The axle-boxes q, designed to support the axle K and t into slots made in the arms O P, in combination with the spring o and springholder p, adj ustably connected to the arms O P, substantially as and for the purpose specified.

G. The holding wheel L, connected to a shaft, K, deriving mot-ion as specified and supported 0n a bracket attached to the table U,

JAS. D. STORIE.

In presence of ROBERT MoCAN, Jol-[N C. BooN,

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