US677998A - Gaging and face-marking attachment for mortising-machines. - Google Patents

Description

No. 677,998. Patented July 9, 190:. .E LEICHT. GAGING AND FACE MARKING ATTACHMENT FOR MOBTISING MACHINES.

(Application'flled w 1a 1900.) (No Model.) y {Sheets-Sheet k N I. I um: r A v Z 2 7 .Ze/ci? I A W1 No. 677,998. P atented luly 9,-19m. E. LEICHT. V

BAGING AND FACE MARKING ATTACHMENT FOR MOBTISI NG MACHINES.

( um fllgd July 18, 1900.

I (No Model.)

No. 677,998. Patented July 9,-19m. armour GAGING AND FACE MARKING ATTACHMENT FDR MUBTISING MACHINES.

(A H finnflM-I 18,1900.) v (No mum.) a I s Sheath-Sheet 2.

' sponding parts throughout the several views.

j UNIT D STATES PATENT OFFICE.

EMIL LETOHT, OF WINONA, MINNESOTA.

GAGING AND FACE-MARKING ATTACHMENT FOR MORTISING-MACHINES. a

srncrricA'rron forming pairtof Letters Patent No. 677,998, dated July 9, 1 901.

7 Application filed July is, 1900.

To all whom it ma concern:

Be it known that I, EMIL LEIOHT, a citizen of the United States, residing at Winona, in the county of Winona and State of Minnesota, have invented certain new and useful Improvements in Gaging and Face-Marking Attachments for Mortising-Machinesg and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use'the same. 1

My invention relates to improvements in gaging and face-marking appliances for "chain mortising-machines; and it consists in certain novel features of construction, combination, and arrangement of parts, as will be hereinafter more fully described, and particularly pointed out in the appended claims. In the accompanying drawings, Figure 1 is a perspective view of a mortising-machine, showing the application of my invention thereto. Fig. 2 is a top plan View ofthe up per table or appliance. Fig. 3 is a bottom plan view thereof." Fig. 4 is a front elevation. Fig. 5 is a rear elevation. Fig. 6 is a cross-section. 7 is a sectional view of one of the sliding stops. Fig. 8 is a perspective view of the face-marking device; Fig. 9 is aview in perspective of a pattern or stile laid out for mortising. Fig. 10 is a similar View showing a stile mortised and facemarked.

Like reference characters designate corre- The numeral lin the drawings represents a chain mortisingmachine of known construction, having a table 2, adapted to be moved vertically and laterally to bring the work in proper position, a gage 3, connected with the table, and achain mortisingdevice 4:.

The invention'is not limited in application to a chain'mortising-machine of the particular construction shown, as almost any variety of upright chain mortising-machine may subserve the purpose so far as applying my improvement is concerned, and as such niachines are well known a further description of the one shown is considered unnecessary.

Upon the upper surface of the table 2 is mounted a comparatively long and narrow auxiliary table 5, on which the work is placed for mortising, this upper or auxiliary table being something more than twice the length of the stiles or pieces that are to be 'mortised Serial No. 24,040. (No model.)

thereon. This upper table is provided with a series of adjustable stops adapted for engaging anen'd of each stile and serving to gage the position of each mortise. The construction of the upper table, stops, and cooperatingidevices is preferably as follows:

The upper table consists of a flat horizontal plate 6, provided at the front and rear with downwardly-projecting flanges 7 and 8, connected atsuitable intervals by transverse blocks or bridge-pieces 9. The plate 6 is also provided at the'rear with vertical upwardlyextending guard-flanges 10, arranged upon opposite sides of the space or openingin which the face-marking device 11 is mounted to operate, theiface of the stile to-be. mortised being rested in practice against these guardflanges, which serve as 'gagesto hold it in proper position for mortising, and when in i the shorter guard-flange 10 to the opposite outwardly-projecting end of the table, as shown. In this slot are movably mounted the heads '15 of a series of slides 16, mounted upon rods 17, arrangedbelow and at a point in front of the slot, and serving as guides for said slides. These rods, of which aseries are employed, one located in each two adjacent transverse blocks or'bridge-pieces 9, are fitted at their ends in sockets 19, formed in the bridge-pieces,whereby each rod and the slides ily and conveniently inserted'and-removed' in adjusting the appliance for gagingstileaf in which the mortises' are'arrangediatfdifierent distances. Each slide is provided-with a transverse opening or socket 20, through 5 which the rod passes and carries a set-screw .21 to bind against the rod and hold it'in fixed i or adjusted position. The head portion 15 of each slide ischamberedto receive a pin or bolt 23, which extends vertically and up: wardly through the slot 14 above the table and is preferably made hollow or tubular to receive the spring 24, inclosed therein and in the socket of the head to adapt the pin to recede into its chamber when a stile is laid thereon and to again project when the stile is removed.

The pin or bolt 23 in its normal or upward position serves as a stop for engaging one end of the stile or other work that is being mortised, and thereby gages one end of the mortise, the width of which is determined by the size of the sprocket-wh eel over which the mortising-chain runs. There are therefore as many stops mounted upon the upper table as there are mortises to be out in the stile. Hence if there were to be four mortises there would be four stops, and if eight mortises eight stops, &c., adjusted for use at proper points on the upper table, as will be readily understood. Heretofore it has been the common practice to lay out the work, each stile being marked to indicate the points thereon where the mortises are to be formed and also face-marked by the operator. He then takes the piece to the machine and gages the table 2, which holds the piece to be mortised, as near as he can by eye and runs the table up to the cutter to form the mortise. is that in stock-shops probably no two pieces mortised are exactly alike, and the carefulness and exactness of movement necessary in bringing the piece or stile into position to form the mortise greatly increases the time required in doing the work.

In operating my improved gaging and facemarking appliance the pattern is laid out, for instance, as shown in pattern 25, Fig. 9, the

lines 25, 26, and 27 indicating the right-hand from right to left until the lines 25, 26, and

27 are one after the other brought into proper position beneath the cutter, when a stop for each line or right-hand end of each mortise is adjusted to bear against the right-hand end of the pattern. As before stated, the width of the mortise is determined by the size of the sprocket-wheel over which the mortisingchain runs. Hence it will be seen that it is necessary to adjust only one stop for each mortise to gage the point in the stile at which one end of the mortise is to come. It is of course immaterial which end of the mortise is gagedthat is to say, whether the line 25, for instance, is brought into vertical 'alinement with either the right or the left hand side or stretch of the mortising-chain, as the result will in either case be the same; but for the sake of illustration I have described the lines 25, 26, and 27 as indicating the righthand ends of the mortises in order that said lines and the corresponding ends of the completed mortises will correspond as to position The result 1 in the pattern and stile shown in Figs. 9 and 10. Each stop as it is adjusted to the position required is of course fastened by tightening its set-screw, and when the operation just described is completed the stops will be arranged to gage the position of each mortise to be cut in the stile, and it is evident that the operator may then cut the mortises with great accuracy and rapidity. The pattern may then, if the work is of some stand ard size, be laid aside for future use.

The pieces or stiles to be mortised are of course cut to the same length as the pattern, and the operator places the stile upon the upper table to bear upon the stop-pins, which are thereby depressed. Upon shifting the stile to the left the first pin to the right will spring up, against which the operator brings the right-hand end of the stile to bear and then elevates the table 2 to make the mortise. Having made this, the first mortise, the stile is again shifted to the left until the next pin projects up, which gages the next mortise, &c., and this operation is followed out until all the mortises are completed.

Where it is desired to make two mortises in each end of the stile, which pairs of mortises are to be similarly disposed, two instead of four pins may be made to answer in the following manner: The operator would adjust the stile to the first pin, make the mortise to the second pin, and make the second mortise. He could then turn the stile around and make the other two mortises with the same pins, as will be readily understood.

In Fig. 10 I have shown a completed stile 28, in the edge of which the mortises 29 are formed, and this stile is marked upon its outer face by the automatic facemarker 11, which will now be described. Upon the rear flange 8 of the upper auxiliary table is mounted a swinging arm 30, hinged or pivoted to move in a vertical plane, and the inner end of this arm is formed with a socket 31, which is designed to receive a pencil, crayon, or marking device 32, which marking device is adjustably mounted and clamped in the socket by a set-screw 33, bearing against a clamp 34, which is forced into and out of engagement with the marking device by the action of the screw. Adjacent to said socket the swinging arm carries a projection 35, which serves as a stop to abut against a corresponding projection 35 on the rear flange Sand limits the downward movement of the said inner end of the arm. To the outer end of the arm is connected a rod 36, pivotally secured by'a thumb-screw or bolt 36 and extending downwardly and having its lower end mounted in a guide or an opening 37, formed in the floor of the room or apartment in which the mortising-machine is located to guide the rod in its upward and downward movements and prevent swinging of said rod under the action of the weight 38. The weight 38 is slidably mounted on the rod and is provided with a set-screw 39 to hold it fixed in adjusted position. When the table 2 is moved upwardly to form the mortise, the weight 38 opposes a resistance and draws the rod 36 downwardly, thereby causing the free end of the swinging arm to move in an arouate path and bring the pencil, .crayon, or marking device into contact with the face of a stile exposed between the flanges 10, thereby face-marking the stile, as shown in Fig. 10. When the table 2 is lowered, the weight 38 abuts against the floor, and the rod 36 is thereby forced up, returning the free end of the swinging arm to its normal position in readiness to again face-mark the stile upon the next upward movement of the table, as will be readily understood.

The function of the automatic marker is to mark the face of the stile which is being mortised. In all work in which a number of parts are put together, such asin door-frames matically at the time the mortising is done and valuable time and labor saved. It will be understood that as the marker has a fixed position it will face-mark the stile each time a mortise is made, but will mark at whatever point it happens to strike when the mortise is made and does not mark the position of the mortises, as such marking is unnecesary.

By the use of my invention the operation of gaging and mortisingstiles may be quickly and conveniently accomplishedand the output of a shop of given size increased to a considerable extent. The device is simple in construction, effective in operation, and may be applied to existing mortising-machines without altering the construction thereof in any way.

Changes in the form, proportion, and minor details of construction may be made within the scope of the invention without de-' parting'from the spirit or sacrificing any of the advantages thereof.

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

1. The combination with a mortising-ma-I -chine,.of a table provided with a longitudinal guideway, a guide below said guideway, slides mounted on said guide and movable in said guideway, and stops carried by said slides, each stop consisting of a spring-actuated bolt vertically movable in itsslide and projecting upwardly therefrom'and vertically with respect to the table, substantially as set forth.

2. The combination, with amortising-machine, of a table havinga longitudinal guide way, a rod or rods mounted below said guideways, one or more slides mounted on said rods and carrying-stops adjustable lengthwise of the table in said guideway, each stop comprising a spring-actuated pin or bolt extending vertically above the table, substan-- rod-and having -a head projecting into said slot or guideway, and a spring-pressed pin or bolt mounted in said head and projecting vertically above the guideway, substantially as described.

4. The combination, with a m0rtising machine, of a table carrying a series of stops, comprisingvertically-extending spring-actuated bolts and having guard-flanges arranged upon opposite sides of an intermediate space, an automatic face-marking device adapted to mark the face of the stile exposed at such space, and means for automatically operating said marker upon the movement of the table, substantially as described. I

5. In a gaging appliance adapted to be ap plied to the tables of mortisingmachines, a face-marker, and means for automatically operating said marker upon the movement of thetable, substantially as, described.

6. In a gaging appliance for the tables 0 mortising machines, an automatic facemarking attachment comprising a 'movable arm adapted to carrya marking device to mark the face of the stile, and means operat-;

ing on said arm for bringing the marking device into contact with the stile and restoring vit to anormal position upon the movement of the table, substantially as described.

7. In a gaging appliance for attachment to the tables of mortising-machines, a facemarking attachment comprising a swinging arm carrying a marking device, an operating- .rod therefor, and means whereby the rodis moved in one direction as the table is-lifted vto operate the swinging arm, and moved in the reverse direction when the table is low- 'ered to retract the swinging arm, substantially as described.

8. In a gaging device for attachment tothe tables of mortising-machines, a face-marking attachment comprising a pivoted arm carrying at one end a marking device, a-rod connected to the other end of the arm, and a weight mounted on said rod, substantially as described.

In testimony whereof I have hereuntoset.

my hand in presence of two subscribing witnesses.

Witnesses:

HERMAN WEIBEL, J 0s. Wmoznwsxr.

EMIL LEICHT. I

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