US545831A - Organ-reed-miliing machine - Google Patents

Description

2 Sheets-Sheet 1.

(No Model.)

H. B. TIBBITTS. ORGAN REED MILLING MACHINE.

Patented Sept. 3,1895.

(No Model.) 2 Sheets-Sheet 2.

H. B. TIBBITTS.

ORGAN REED MILLING MACHINE.

No. 545,831. Patented Sept 1895.

72% Imferrlor,

UNITED STATES PATENT Orricn.

HENRY B. TIBBITTS, OF GENEVA, OHIO, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO CHARLES N. RAND, OF SAME PLACE, AND EMERY GALEN VVETHERBEE, OF PAINESVILLE, OHIO.

-ORGAN-REED-MILLING MACHINE.

' SPECIFICATION forming part of Letters Patent No. 545,831, dated September 3, 1895.

Application filed December 19, 1894:. Serial No. 532,379. (No model.)

To aZZ whom it may concern.-

Be it known that I, HENRY .B. TIBBITTS, of Geneva,in the county of Ashtabula and State of Ohio, have invented certain new and useful Improvements in Machines for Milling Organ-Reeds, of which the following is a specij fication.

This invention relates to certain improve ments in machines for milling the tongues of organ-reeds, having for its object to greatly facilitate and perfect the work; and it consists in, first, providing a means for overcoming the effects of expansion and contraction of the parts of the machine affected by rapid movement; second, in providing a means whereby, when the machine is set for milling any given size of reed the work shall proceed to the end without any variation in the Work performed; third, in providing for the dropping and quick return of the reedcarriage, avoiding a second out and a liability of breaking the tongue of a reed; fourth, in providing a reed-tongue bed-plate, which extends beyond the end of the tongue and prevents the end of-the tongue being bentat the point While being milled.

In the accompanying drawings, Sheet 1, Figure 1 is a perspective view of my new reedmilling machine. Sheet 2, Fig. 2 is a top or plan view of same. Fig. 3 is a perspective view of the upper portion of the machine with the pulley and reed-carriage removed plate on the spindle-bearing support.

to show the reed-clamp and the adj usting- Fig. 4. is a longitudinal section of the reed carriage, showing the reed-holder and ree d-bed' piece. Fig. 5 is a detached perspective view of the reed-carriage. Fig. 6 is a vertical section of one of the posts or pillow-blocks and bearing, showing the spindle and milling-tool, also showing in section the. adjustable plate having a guide-pin for guiding the movements of the reed-carriage relative to the milling-tool. Fig. 7 is a detached view of a reed-bed piece.

A is the table or bed of the machine, supported on suitable legs. I Y

B B are posts or'pillow-blocks mounted at one side of the table,-having the boxes or bearings for a spindle-shaft upon which is placed a small pulley B and balance-Wheel B the projecting spindle O carrying the milling-tool O rapid'motion being imparted to the same by a belt from a suitable power source connected with said pulley B D is the reed-carriage fixed to ride back and forth beneath the milling-tool in the guide-posts d d at the front side of the table and the guide-posts cl (1 at the opposite or rear side of the table.

01 is a sliding plate movably set in grooves in the inside faces'of said guide-posts d and projecting down througha hole in the bed or table A.

the front end and rests on the shoulders of the guide-posts d d. Set-screws are provided in these guide-posts for the nice adjustment of the Ways in which the carriage rides. To the top of the carriage is fixed the bed for hold-. ing the reed, and consists of a movable plate E, having a slot c, Fig. 5, in which a tonguebed F (seen detached in Fig. 6) is placed and held by set-screws.

Gr is a clamp-hook for holding the heelof a reed, and consists of a bar placed in a perpendicular hole through the carriage and through a slot in the table-top, having a cross-pin g, (seen in Figs. 3 and 4,) which whenever the carriage is depressed allows said bar G to be supported by the pin g, lying on the table,

rack-bar I from the pinion N, as will be explained farther on in the workings of this machine.

Movements are imparted to the carriage for carrying the reed under the milling-tool by means as follows: Upon the side of the carriage is attached a rack-bar I. J J are posts or pillow-blocks secured to the table, having bearings which support a driving-shaft K, upon the end of which is attached a pulleywheel, K L is adriving-wheel mounted on the end ofashaft L fixed to the two rearlegs of the machine, midway down from the table, and joined to the hub of said wheel L isa small pulley Z,from whichabeltM connects with the pulley-wheel K by means of which a slow motion is imparted to the shaft K for propelling the carriage. On the inner end of said shaft K is provided a pinion N, meshing with the rack-bar I on the carriage. The teeth on the pinion N and rack-bar I are made on a diagonal line relative to the axis of the pinion, the object of which is to make a continuous bearing of the teeth between the pinion and the rack-bar to insure a steady movement of the carriage. The return movement of the carriage is performed through the medium of the weight II and strap h, as hereinafter shown.

0 is a foot-treadle fulcrumed at the rear end to a cross-rod P near the foot of the rear legs of the table, the forward end supported by a spring Q, attached to its under side and resting on a front cross-rod P said spring being stiff enough to bear the weight of the operators feet.

It is a rod connecting the treadle with the sliding plate (1 by means of which said plate may be pulled down when required by a pressure of the operators foot.

S is a screw set in a side lug S at the side of the broad part of the carriage, and is de signed for a stop to the forward movements of the carriage, the end of the screw striking against the post B. Said screw is adjustable for regulating the distance the carriage should go in accordance with the length of reed being milled.

T, Figs. 1, 2, and 3, is an adjusting-plate attached to the side of post B by means of a screw t at one side of the spindle C, the other side of said plate having a top flange lying on the top of the post and bearing B and a side flange resting against the front side of the post. Through the top flange a screw 15 holds the plate onto the post, and a set-screw t also fixed in said flange, serves for accurately adjusting the plate. On the plate very near to the spindle is provided a pin V. On the side of the carriage next to the plate T is attached a guide-strip WV, which rides up against the said pin V. The purpose of the adjustable plate T with its pin V is as follows: The spindle-shaft has very rapid revolutions which are liable to generate heat in the bearings and thereby cause expansion in the metal. This would haveatendency to raise the milling-tool slightly from the carriage and result in a non-uniformity of cutting on the reed-tongues, so that there would be a variation of the thickness of tongues. To guard against this and provide for strict uniformity of work under all conditions of temperature, the adjustable plate T is iixcd on the side of the bearing-post B, so that the pin V, which accompanies any such dcrangement of position of the spindle and milling tool, serves as a certain guide for the plate IV on the carriage to bear against as the carriage moves forward under said tool.

The working of the machine is as follows: The carriage being atthe front and the foottreadle depressed, a reed is placed'on the bedpiece F, the forward hook-p0int of which 0X- tends sufficiently through the forward end of the reed-aperture to support the point of the reed-tongue. New by releasing the pressure of the foot on the treadle the carriage is raised by the spring D This brings the heel of the reed under the clamp-hook G and. firmly holds the reed down upon the bed, as well as brings the former plate \V up against the guide-pin V, at the same time, too, the rack-bar I is thrown into mesh with the pinion N, and the carriage is then carried along under the cutting-tool until the carriage arrives at the offset B, when the end of the carriage will drop. This will lower the reed from the cutting-tool, and also lower tho racle bar away from the pinion N. New by dcpressing the treadle the sliding plate (1 pulled down, releasing the carriage at the offset, and the downward pull of the weight II upon the strap 71. draws the carriage back again toward the operator, the strap sliding on the edge of the slot 11 in the table. The carriage also carries the clamp-hook G with it, said hook-bar riding on its pin g on the top of the table. moved from the carriage and another one applied and the same operation repeated.

It will be seen that a full set of reed-bod pieces F corresponding with the sizes of reeds are to be employed in the performance of milling a full set of reeds.

Having described my invention, I claim- 1. In a reed milling machine the combination with the spindle, spindle bearing and cutter head 0 of the adjustable plate T, pro vided with pin V, mounted on the side of the bearing post on a screw '5, and the screws 1? and i in the top flange of said plate, adapted for adjustment as a guide for the reed carriage relative to the cutting tool, as described.

2. In a reed milling machine the combina tion with spindle O cutter C and the adjusting plate T having guide pin V and mounted on the post and bearing 13, of the reed carriage, having the off-set D and the guide strip \V, bearing against said guide pin V, the reed holder E mounted on said carriage, and slotted at e, the reed bed F held in said slot 8, the rack barI on side of the carriage and The reed may now be re- IIO means for moving the carriage forward under said cutting tool, substantially as described and for the purpose set forth.

8. In a reed milling machine the combination with the carriage D mounted to ride on the lugs 01. d, d. d, and having the ofi-set D of the clamp hook G fixed in the Vertical hole in the carriageD and holder E, the strap h having one end attached to said hook bar G, and the other end attached to the under side of the carriage, said strap depending through slot 11 in the vtable, and carrying the weight I-I, adapted for clamping the hook upon the reed, and for drawing the carriage back for quick return, substantially as described.

4. In a reed milling machine, the combination with the table of the treadle O, fulcrumed to rear cross-rod P, the spring Q attached to under side of treadle and resting on front cross-rod P the'rod R, connecting the treadle with the sliding plate 01 the spring D supporting said sliding plate, the reed carriage D, hook bar G held in a hole in said carriage, strap h having one end attached to the carriage, and the other end attached to the lower end of hook bar G, the weight H supported on said strap, the arrangement of the parts being such that when the treadle O is depressed, the carriage is re leased by the pulling down of the plate (1 and the weight quickly draws the carriage backward for return of same substantially as described.

HENRY TIBBITTS.

Witnesses:

H. GOULD, E. E. MARTIN.

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