US399435A - Mortising-machine - Google Patents

Description

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No, 399,435. Patented Mar. 12, 1889.

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FRANFIS V. liIlLhllS, ()F IIH TAGQ ILLINOIS, ASSTGNOR TO THE CHICAGO SASlI ll'l/LEY COMPANY, OF SAME PLAUE.

iVlORTlSlNG-MACHINE.

SPECIFICATION forming part of Letters Application filed April 15, 1887.

To (1W whom it III/e7; concern:

Be it known that 1', FnANcis V. PHILLIPS, of Chicago, in the county of Cook and State of lllinois,have invented certain new and useful Inun'ovements in MortisingMaehines; and I do hereby declare that the following is a full, clear, and exact description thereof, reference bein had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to an appliance intended to be used upon mortisirig-machines for the primary purpose of controlling or gaging the length of the mortise, and which, as preferably constructed, not only gages the length of the n'iortise, but also holds the piece being mortised down to the bed against the lifting tendency of the chisel.

The invention consists in the matters hereinafter described, and pointed out in the appended claims.

The accompanyingdrawi ngs illustrate three of many practicable forms in which my invention may be emlmdied.

Figure l is a central vertical sect ion taken longitudinally through the slot of a guideplate and through the slide which works therein, together with a side view (broken) of the bed and of the stripbeing mortised. Fig. 52 is a top view of thematters shown in Fig. 1. Fig. 3 is a central vertical longitudinal section of a slotted base-plate, a slide working thereon, and a cam-lcwer for compressing the clamp-jaws. Fig. lis a top view of the clamping-jaws shown in Fig. 23; Fig. 5 a side elevation, partially in a central vertical sec tion, of a guide-plate and slide, showing another t'orm of clamp device and. stop for limiting the movement of the slide. Fig. 6 is a sectional plan view of the parts shown in Fig. 5, taken on line as .1 of the latter figure.

A i n all of the figures represents a guide-plate for a slide, which guide-plate is secured to the bed of a inortising-machine, (represented at A.) Said guide-plate'A is shown as having a central longitudinal slot, (1, having lateral rabbets or recesses c. on both sides in the under side of the plate. The slot is limited at both ends by cross-l ars oi the plate, or equiv- Patent No. 399,435, dated March 12, 1889.

Serial No. 234,899. (No model) alent means, to restrict the range of movement on the part of the slide.

'3 is a slide titted to the margins of the slotof the guide-plate A in a familiar manner.

0, Figs. 1 to 4, is an ad justingscrew threaded through the outer cross-bar of the guide-plate and arranged to run in the direction of the slot, whereby itmay serve as a stop for limiting the range oi movement of the slide 13.

t", Figs. 5 and 6, is a plate adjustably at tached to the guide-plate, and serving as a stop for the slide 1% in place of the adj ustingscrew 0. An adjustable stop may of course be provided at each end of the slot of the guide-plate, if desired.

Above the guide-plate the slide B is pro vided with some suitable means for engaging the strip of wood which is to be mortised, so that the slide will be drawn along with the strip or stuff as the latter is moved upon the bed A beneath the mortising-chisel C, and so that the slide, thus engaged with the stuff, will arrest the latter when the slide reaches the end of its movement in the slot of the guide-plate A. I prefer that such engaging means shall be in the nature of a clamp calculated to hold. the stall down to the bed as well as to limit its movement. To this end, ll is a fixed lower jaw, and B is of the stuff may be grasped.

In Figs. 1 and 2 the upper jaw, B is in the form of a screw-threaded nut tilted to the screw-bolt Z), which rises from the slide B. I11 this instance the slide l; is of T shape and the lower jaw, 13, is in the form of a washer placed about the screw-bolt h.

In Figs. 3 and 4-, h is a plain post rising from the slide 1-3, having a movable jaw, B fitted to slide thereon like the movable jaw of a monkey-wrench upon the shank, and B is a cam-lever pivoted at 11 to the upper end of the post b above and bearing upon the upper jaw, B This or some equivalent adaptation of a cam is mechanically preferable to the simple screw shown in previous figures as being quicker in its action than the ordinary screw. in this instance the lower jaw,

a movable upper jaw, between which the end So B, is formed by the top surface of the slide itself. A spring, 19 is shown in position to raise the movable clamp-j aw B when the cam is retracted.

In Figs. 5 and G, B is a rigid post or standard attached to the slide 18, and provided with a horizontal arm, 6 at its upper end. B is a screw threaded in the arm b and carrying the upper clamp-jaw, B The screw B is. provided with a crank or hand wheel, B, whereby the screw maybe turned for actuating the upper clamp-j aw.

\Vhen the stuff D is seized between the jaws B and i the latter manifestly holds that end of the stuff down to the bed of the machine against the lifting action of the chisels (seen at E) when rising out of the mortise after the down-cut, and when, as in the particular case of window-stiles the stuit is being mortised to receive sash-cord guides, the mortise is near the end of the stuff, this clamp is practically all that is needed to enable the operator to keep the work to the machinebed. If this clamping efiect is not needed in the appliance, but only such engagement of the slide with the stuff as will insure the regulation of the length and position of the mortise, then a single sharp spur, as 19 (shown in dotted lines of Figs. 1 and 4,) or a similar device, may be provided on the slide to penetrate the stuff or stile under hand or other pressure, and the screw or post and clampingjaws may be omitted.

In Figs. 4 and 5 the slide B consists of a plate provided with opposite guide-grooves, b b and the cross-bare of the guide-plate at one end of the latter is depressed below the end of the side margins of the slot a, which side margins form the guides for the plate in such manner that the slide may be engaged with the guide-plate by thrusting it over the said cross-bar a In this instance the bar 0, forming the stop for the slide, is secured by a screw or screws, 0, to the crossbar the said bar C being provided with a plurality of screw-holes, c, to allow an adjustment of the bar longitudinally of the guideplate.

The adjusting screw or screws C,bar C, or other forms of adjustable stop or stops, may be employed it the work requires provision. for a variation in the length or position of the mortises within certain limits.

If the appliance is secured to the surface of the bed, a supplemental bed-piece, A will be secured upon the bed to raise the stuff into position to enter the jaws or rest upon the slide.

I claim as my invention 1. In combination, the horizontal table for supporting the work, the slotted plate having guideways, a movable part fitted to said slotted plate and adapted to engage with the material, and a stop supported by the plate in direct line with the movable part, for limiting its movement, substantially as described.

2. The combination, in a mortising-machine, of a stationary work-supporting table, a slotted guide-plate secured thereto, a slide, as B, engaging said guide-plate and movable there on, a clamp carried by the slide B for engaging the material to be operated upon, and an adjustable stop passing through the end of the slotted guide-plate in the path of the slide B, whereby the movement of the work is lim ited, all substantially as described.

In combination, a table for supporting the work, a cutting-tool, guideways on said table, a movable plate adapted to said guideways, a clamp carried by said movable plate for engaging the top of the work, and a spur, b, on said plate adapted to engage with the work, all substantially as described.

In testimony that I claim the foregoing as my invention I aflix my signature in presence of two witnesses.

FRANCIS V. PHILLIPS.

IVitnesses:

O. CLARENCE PooLE, CHARLES T. Lonnvc.

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