US1046975A - Pencil marking-gage. - Google Patents

Description

R. J. CLARK, JR- PENGIL MARKING GAGE.

APPLIOATION FILED JULY 13, 1911,

1,046,975. Patented Dec. 10, 1912 2 SHEETSSHEET l.

1 Wane-mo cuLunuuA PLANuuRAPn CO.,\VASIHNGTON, D. c.

R. J. CLARK, JR.

PENCIL MARKING GAGE.

APPLIOATION FILED 111111311911.

1,046,975, Patented Dec. 10, 1912.

2 SHEETS-SHEET 2.

REED J. CLARK, JR, OF 'YOUNGSTOWN, OHIO.

PENCIL MARKING-GAGE.

Specification of Letters Patent.

Patented Dec. 10, 1912.

Application filed July 13, 1911. Serial No. 638,407.

To all whom it may concern:

Be it known that I, REED J. CLARK, Jr., a citizen of the United States of America, and resident of Youngstown, Mahoning county, State of Ohio, have invented certain new and useful Improvements in Pencil Marking-Gages, of which the following is a specification.

This invention relates to certain new and useful improvements in pencil marking gages, and the object of the invention is to provide a gage of this type in which the pencil is resiliently mounted so as to give, should any obstruction be encountered, and further to have an easy, positive and certain action on the work, engaging the latter at all times with constant pressure.

Further the invention aims to provide a gage which can be altered so as to be adapted for use with both wide and narrow work.

In the drawings, Figure 1, is a perspective view of the invention, Fig. 2, is a top plan view, the angle bar attachment being shown by dotted lines as applied to the stock, Fig. 3, is a section taken on the line 33 of Fig. 2, Fig. 4, is a similar view taken on the line 4-4 of Fig. 2, Fig. 5, is a front end elevation, parts being broken away, F ig. 6, is a fragmentary bottom plan view of the edge member, Fig. 7, is a detail view in perspective of one end of the edge member, Fig. 8, is a perspective view of the attachment used for wide work, Fig. 9, is a section on the line 9-9 of Fig. 8, Fig. 10, is a section on the line 1010 of Fig. 8, andFig. 11, is a fragmentary detail perspective view of the extension which is used for wide work.

The edge member 1, is formed with a reduced end which constitutes a surface 1, for engagement with the index finger, and is further formed with an outwardly projecting curved hand grip 1 and a notch 1 the curved end of grip 1*, being engaged in the palm of the hand beyond the base of the thumb and the middle finger being engaged in the notch 1, all as depicted in dotted lines in Fig. 1, of the drawings, in which it will be further noted that the middle finger in addition to engaging in the notch 1', has one side thereof engaging the bottom side of the edge member 1.

The stock is designated 2, and is slidably supported by the member 1, through the medium of a sheet metal guide member 3, which conformably receives stock 2, and has its ends suitably fastened to the top face of member 1.

4, designates a notch cut in the guide 3, for a purpose later set forth.

At the outer end of the stock 2, an L shaped plate 5, is located, being secured to the stock by fastening means passed through the base 6, of plate 5.

7, designates a pencil carrying member which is constituted of a plate 11, formed with a socket to receive the pencil and to have its ends turned outwardly and riveted to a plate 11, which forms the base of the pencil carrying member, and constitutes one wall of the socket which receives the pencil. Member 7, is formed with an enlargement 8, having a screw threaded aperture to receive a screw 9. Screw 9, has its inner end ongaging through the clamp 15, and is headed in. the aperture provided for the reception of the inner end of the screw, in order that when the screw is rotated, the clamp will be given inward or outward movement.

10, designates the pencil which is clamped between plate 11, and the clamping plate or jaw 15. It will be seen that the latter is provided with a longitudinal curved portion which permits also of the use of pencils having a circular cross-section, as distinguished from the elliptical cross section of the penoil shown in the drawings. Plate 11, is

pivoted by means ofa rivet 18, Fig. 3, to the upright portion of the L-shaped plate 5, in order that the pencil carrying member can be moved in an arc-like plane. Plate 5, has its upright portion formed with an arclike slot 16, Fig. 4, through which extends a guiding pin 17, the latter being carried by the plate 11, whereby it will be obvious that the pencil carrying member is only permitted an oscillating movement the extreme limit or extent of which is defined by the degree of the arc-shaped slot 16. A. spring 13, which is formed of a fiat strip of spring metal is employed, same being doubled over intermediate its ends in order to provide a loop in which the pin 17, is received, as seen in'Fig. 4, of the drawings, the spring occupying a vertical position on the rear of the upright portion of plate 5, and having its ends turned at substantially right angles and secured between the base 6, of plate 5, and the top face of the stock 2, extending through opening 13', formed in base 6. It will thus be observed that the encil carrying member may be oscillated In either direction against the tension of the spring 13,

which latter will always exert a constant pressure on the member 17, and will hold the pencil to its work in a resilient manner.

A guard or protector 12, is provided for the upper end of sprin 13, same being secured to the back face 0 the upright portion of plate 5. The guide 3 is of greater depth than the thickness of stock 2, in order that a substantially J-shaped fiat spring 19, can be mounted within a recess provided therefor in the guide member, the spring having its ends secured to the top and bottom faces of the member 1, at opposite sides thereof, and having an intermediate port-ion bearing against the stock 2, whereby the member 1 may be moved or slid to any point on the stock 2, and securely held in position by virtue of the frictional contact which the spring 19, exerts.

The bottom side of member 1, is formed with an opening 22, over which a plate 21, is fastened, plate 21, being formed with a central opening and with contracted slots 23, at diametrically opposite points with respect to the central opening, whereby the head of a nail or screw for instance, can be introduced into the central opening to suspend the device, the shank of the nail or screw being received in one or the other of the slots 23, according to whether the stock points up or down.

' In operation, it will be seen that the edge member 1, is grasped by the right hand in a manner shown in Fig. 1, after which the edge memberis brought to engage with the edge of the work, and the pencil point to engage with the top surface of the work. It

r-w'ill be seen that when the stock is brought to engage with the surface of the work, that the pencil will be tilted or inclined to the greatest extent permitted by the slot 16, thus obtaining a perfect mark as though the pencil were held in the hand of the operator. Owing to the resilient mounting of the pencil same will give to any obstructions or the like which otherwise might destroy the point, and further the stock and member 1, can be adjusted by merely sliding one with respect to the other, the two being held in their adjusted position by virtue of the spring 19.

hen the gage is used for wide work, I attach an extension 24, to the stock 2, the extension being of the same cross section as that of thestock and having off-set flat metal plate or shank 25, Fig. 11, projecting therefrom, the shank havmg a transverse notch 26. The rear end of stock 2, is formed with asocket 27, Fig. 3, in which a springcatch' 28, is secured, the latter having a nose 29,'which engages with or in the notch 26, of shank 25, the parts acting as a springgsnaplock or catch. The edge memher 1, 1s formed at one end ,witha socket 30,

Fig. 7, and at its other end has an outwardly projecting pin 31, Fig. 1, secured thereto, the pin 31, being reoelved in a perforation provided therefor in a right angular lug 32 Fig. 8, carried by the angle bar attachment 33, the socket 30, receiving the rolled head 34, of a spring finger 35, that is attached at one end to a right angular bracket 36, rigidly secured to the bar 33, the bracket having an opening 37, to permit movement of the head 34, of spring 35. The bracket 36, is formed with a diagonal brace 38, and upper and lower projections 39, which engage opposite sides of the edge member 1. To attach the bar 33, to the edge member 1, the pin 31, of the latter is placed in the perforation of lug 32, and the opposite end of member 1, is then forced into engagement with finger 35, until the head 34, thereof snaps into socket 30, of member 1. The extension 24, is then placed in the socket 27, of stock 2.

Owing to the rounded contour of the head 34 of finger 35, it is possible to remove the bar 33 from the edge member 1, by merely pulling on the end of said bar 33 that carries the finger 35, in a direction away from the edge member 1, which causes the outer rounded part of the head 34 to ride on the wall of socket 30 of the edge member 1,with the result that the spring finger 35 is moved out of the socket.

The notch 4 in the guide 3 is for the purpose of receiving the spring 13 when the edge member 1 is to be located close to the pencil.

For small work the angle bar attachment 33 is not used, although when the gage is employed in connection with a large board or like member, the attachment 33 is fitted to the edge member 1 in order to increase the effective length thereof and enable the gage to be used with greater accuracy.

What is claimed is:

1. In a marking gage, in combination with the stock and the edge member carried thereby, an L-shaped plate secured at one end of the stock, and formed with an arc-shaped slot, a pencil carrying member pivoted to the plate and having a pin extending in said slot, and spring means for normally holding said pencil carrying member in a vertical position.

2. In a marking gage, in combination with the stock and the edge member carried thereby, a pivoted spring pressed oscillatory pencil holding member carried at one end of the stock, and means to restrict the oscillating movement of said member.

3. In a marking gage, in combination with the stock and the edge member carried thereby, an L-shaped plate carried at one end of the stock and formed with an arc-shaped slot in its upright portion, a pencil carrying memberpivoted to said upright portion of the plate and having a pin which projects in said slot, and a spring formed of a strip of fiat material doubled on itself to form a loop which receives said pin, and having its ends turned outwardly and secured at the base of the upright portion of the L-shaped plate.

4. In a marking gage, in combination with the stock and the edge member carried thereby, an L-shaped plate carried at one end of the stock and formed with an arc-shaped slot in its upright portion, a pencil carrying member pivoted at said upright portion and having a pin projecting in the slot, and a spring secured at one end to the pin and its opposite end being secured to the plate whereby the pencil carrying member will be normally held in vertical position regardless of which end of the slot it is moved to.

5. In a marking gage, in combination with the stock and the edge member carried thereby, a plate at one end of the stock extending outwardly therefrom, a pencil carrying member pivoted to the plate, and spring means engaging said member for holding the same in a normal vertical position.

6. In a marking gage, in combination with the stock and the edge member carried thereby, a plate at one end of the stock extending outwardly therefrom, a pencil carrying member pivoted on the outer side of the plate and having a pin which projects through a slot formed in the plate, and means on the other side of the plate to engage the pin and hold the member in a normal vertical position.

7 In a marking gage, in combination with the stock and the edge member carried thereby, an attachment for the stock forming an extension thereof, spring locking means between said stock and the attachment, and an attachment for the edge memher, including an angle-bar, a perforated lug projecting therefrom, a spring finger carried by the angle-bar in a spaced relation to the perforated lug and having a rounded head, said edge member being formed at one end thereof with a socket to receive said head of the spring finger and having a pin at the opposite end thereof to engage in the perforation of said lug.

8. In a marking gage, a plate, a pencil carrying member pivoted to the plate, a projection carried by said member and disposed in spaced relation to the pivotal point there of, and a spring connected to said projection and to the gage.

9. In a marking gage, in combination with the stock and edge member thereof, an attachment for the stock having an offset shank formed with a transverse notch at its free end, the free end of the stock having a socket, and a spring catch in said socket having a nose to engage in said notch of the shank.

10. In a marking gage, in combination with the stock and edge member, said edge member having a pin at one end thereof and a socket at its other, an attachment for the edge member including a bar having a perforated lug projecting therefrom and adapted to receive the pin of the edge member, and a spring finger carried by the bar in a spaced relation to the perforated lug and having a head at its free end to engage in said socket of the edge member.

In testimony whereof I affix my signature in presence of two subscribing witnesses.

REED J. CLARK, J R.

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.

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