US487589A - taylor - Google Patents

Description

2 Sheets-Sheet 1.

(NoMddeL) M." A. TAYLOR. ROUTING MACHINE.

Patented Dec. .6, 1892.

II!!! 776 v/ll .71/4 .756 V Z (No Model.) 2 Sheets-Sheet 2.

M.A.TAYLOR.

ROUTING MACHINE N0. 487,589.- Patented Dec. 6, 1892-.

UNITED STATES PATENT OFFICE.

MELVIN A. TAYLOR, OF OAKLAND, CALIFORNIA, ASSIGNOR OF ONE-HALF TO GEORGE M. BLAIR, OF SAME PLACE.

ROUTING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 487,589, dated December 6, 1892.

Application filed August 24, 1891. serial Na l-03.612. (No model.)

To all whom, it may concern.-

Be it known that I, MELVIN A. TAYLOR, a citizen of the United States, residing in the city of Oakland, State of California, have invented an Improvement in Routing-Machines; and I hereby declare the following to be a full, clear, and exact description of the same.

My invention relates to certain improvements in what are known as routing-machines. My improvements are specially adapted for routing the channels in the side rails of stairs; and my invention consists in certain details of construction, which will be more fully explained by reference to the accompanying drawings, in which- Figure 1 is a view of my apparatus. Fig. 2 is a cross-section through the journal of the cutter shaft. Fig. 3 shows the manner of hinging the clamps to the frame. Fig. 4 is a plan View of the templet and clamps. Fig. 5 is a vertical cross-section through the templet on the line 00 a: of Fig. 4.

A is the table upon which the work is carried.

B is a vertical driving-shaft suitably journaled in the framework at one side of the table.

O is amovable frame turning about the shaft as a center, and D is a supplemental frame journaled in the end of the frame 0. These two frames being movable about their respective journals allow the routing-tool E, which is fixed at the lower end of a vertical shaft E, journaled in the frame D, to be moved in any desired direction, following a suitable templet, which guides it so that it will cut a channel, following the templet as a pattern.

F is a pulley upon the shaft B. G is the belt extending from this pulley to the pulley H upon the shaft, which forms the journal between the frames 0 and D. I is a pulley upon this shaft. J is the belt from this pulley to a pulley K, which is fixed upon the shaft E of the routing-tool, this mechanism being common to machines of this class.

K is the templet or pattern, which is made of iron or other suitable material and is of a shape to fit the grooves forming the rise and tread of the stairs. This templet is made of sufficient size for the largest cut it will be necessary to make, and the pattern is reduced to suitdifferent thicknesses of tread by means of the supplemental wooded pieces L, which are secured within the templet pattern. These pieces are made of different thicknesses, and any set of them may be used to suit the particular pattern and thickness to be made. This templet is secured upon the table A at such an angle, as shown, that the side rail of the stairs in which the grooves or channels are to be routed out may be run along the table and each of the grooves or channels formed successively in it.

M is aholding-clamp within which the templet is cast. The rear end of this clamp is hinged at m to plates n. These plates are slotted over bolts N, and by means of nuts are held at any height to fit the thickness of the stair-rail to be worked.

At the front of the table is a screw 0, the shank of which passes through a guide 0, fixed to the table. The screw passes through a threaded nut 0', projecting from the front of the frame M, and by turning this screw after the side rail is properly adjusted beneath the templet it is clamped firmly upon the table while the cut is being made. The cut is made by introducing the cutters at the lower end of the shaft into the space between the sides of the templet or guide and following this templet until a channel has been cut of the proper dimensions. A suitable vertical guide limits the depth to which the tooth cuts in the face of the side strip. After each out has been made the screw is loosened and the side rail moved along to the point for the next cut.

P is aguide-rail having screws Q, by which it is adjusted in the slots B. This guide-rail is parallel with one edge of the piece in which the cuts are to be made, and it is adjusted with relation to the templet and the width of the rail so that the cuts will be properly made in the latter. After this it is only necessary to loosen the clamping-screw of the frame which holds the piece and slide it along to the next position and again cla'mp it. By attaching this guide-rail to the frame M it will be manifest that any looseness of joint or movement of the clamp or the templet will be equally communicated to this guide, and

the relative position of the rail and the templet will always remain the same. The cuts will thus be accurately made in the stair-rail without reference to the relative positions of the templet and the table.

The cutter-shaft has the head formed with alternate rings and channels, and it is fitted into a babbitted sleeve T, within which it rotates. U is an oil-hole through the upper end for supplying the proper lubrication to this head. The sleeve moves inside the guide (1', and a lever V presses upon the top of this sleeve by means of a link or connecting-rod \V. XVhen the lever is pressed downward, it forces the sleeve and the shaft downward, carrying the cutter with it, and it is held in this position while the frames 0 and D are moved about their journal-shafts, so that the cutter follows the form of the templet and makes the out, after which the strip ismoved along for the next cut, the cutter remaining in the slot; or, if desired, it may be raised above the surface and templet.

In order to dispose of the chips formed by the cutter, I employ a blowing or suction fan a, secured to the upper end of the intermediate journal-shaft and revolving within a case I). This case is connected by a pipe (3 with a channel 07, which is cast in the frame D and extends down to a point just above and at one side of the cutter, where it opens into a tube or sleeve 0, surroundingthe lower end of the cutter-shaft. This sleeve is slotted and is adjustable upon a similarly-shaped projection d at the lower end of the frame, so as to regulate its position with reference to the depth of cut to be made. As fastas the shavings or chips are cut away the blast or vacuum produced by the action of the fan either blows the chips away or draws them up through this tube and channel, and they are discharged out at one side of the. fan, thus keeping the work clear at all times.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a routing-machine, the templet and the frame in which it is secured, the adjustable hinge-strips to which the rear of the frame is fulcrumed, and the clamping-screw at the front, whereby the frame and templet are held in position, substantially as described.

2. In a routing-machine, the templet, the frame to which it is secured, having the rear hinged and vertically adjustable, and a clamping-screw by which the front of the frame and the work are secured to the table, in combination with the guide-strip secured to the front of the templet and adjustable thereon, substantially as described.

3. In a. routing-machine, the templet and the frame in which it is secured, having its rear hinged and vertically adjustable, and the lining-strips adjustably secured within the templet to regulate its size with relation to the work, substantially as herein described.

t. In a routing-machine, the templet, the frame in which it is secured, having its rear hinged and vertically adjustable, the hinged swinging frames journaled on vertical shafts above the table, a cutter-shaft and means for operating the same, a non-rotating sleeve in which the head of the cutter-shaft is journaled, a guide in one of the swinging, frames, within which the sleeve is vertically movable,and a lever and connecting-rod for raising and lowering the sleeve and the shaft, so as to adjust the cutter to the work or remove it therefrom, substantially as herein described.

5. In a routing-machine, and in combination with the adjustable templet, movable frames, cutter-shaft and cutters, the blast or suction-fan fixed within a, casing upon an intermediate shaft, a tube connecting the easing with a channel formed Within. the outer swinging frame and leading to a point just above the cutter-head, and asleeve inclosing the cutter-shaft and lower end of the suctiontube, substantially as described.

6. In a routing-machine, the adjustable templet, the swinging frames, and adjustable.

cutter-shaft and cutter-head,afan secured to the intermediate driving-shaft within acasing, a tube connecting said casing with a channel cast in theouter swinging frame and leading to a point above the cuttenhead, and a.

vertically-movable sleeve inclosing the cut ter-shaft above the head and the lower end of the suction-tube and vertically adjustable with reference thereto, substantially asv described.

In witness whereof I have hereunto set. my hand.

S. H. NOURSE, II. F. ASCHECK.

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