US996597A - Lock-setting gage. - Google Patents

Description

' H. L'. COOPER.

LOCK SETTING GAGE.

A.rI'P LIOA'.IIION FILED $1113.16, 1911.

996,597. Patented June 27, 1911.

2 SHEETS-SHEET 1.

H. L. COOPER.

LOCK SETTING GAGE.

12211101111011 FILED P1113118, 1911.

996,597. v Patented June 27, 1911-.

8 BHEETS8HEET 2.

TEE- N 1 41 4a 6 g 42 I 1 31/ 4 (04am 1 1 1 HARRY L. COOPER, 0F ALBANY, OREGON.

LOCK-SETTING- GAGE.

Specification of Letters Patent.

Application filed February 16, 1911.

Patented June 2'7, 1911.

Serial No. 608,924.

To all whom it may concern:

Be it known that I, HARRY L. Coornn, a citizen of the United States, residing at Al bany, in the county of Linn and State of Oregon, have invented certain new and useful Improvements in Lock-Setting Gages; 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.

This invention relates to improvements in setting gages for mortise locks. V

One object-of the invention is to provide a gage of this character having an improved construction and arrangement of adjusting mechanism whereby the same may be adjusted to fit doors of different widths.

Another object is to provide a gage having an improved mortise marking mechanism and adjustable means for marking the places for the knob and key holes.

\Vith these and other objects in view, the

' invention consists of certain novel features of construction, combination and arrangement of parts as will be more fully described and particularly pointed out in the appended claims.

In the accompanying drawings: Figure 1 is a perspective view of my improved gage; Fig. 2 is a similar view looking toward the opposite side of the same from that shown 111 Fig. 1; Fig. 3 is a vertical longitudinal sec tional view of the same; Fig. 4 is a hori- -zontal sectional View, on a plane cutting through the handle and the flanges by which the shank is secured to one of the door engaging plates; Fig. 5 is a detail perspective 'view of the mortise marking plate; Fig. 6 is a similar view of one of the knob and key hole marking bars.

Referring more particularly to the drawings, 1 denotes thebody portion of the gage, preferably formed from a sheet metal plate bent or folded upon itself' midway between its edges to form a housing 2 and then bent laterally in opposite directions to form door engaging plates 3.

Riveted or otherwise rigidly secured to the outer side of the plates 3 is a tubular stem or shank 4 with which is engaged a suitable handle 5. In one side of the shank 4 is formed a notch with which is engaged the inner end of a set screw 6 arranged in the handle whereby the latter is secured to the shank. The housing 2 is notched to receive the shank 4 and in the plates 3 is formed an opening which communicateswith the inner end of the tubular shank as shown.

Arranged on one of the plates 3 is a right angularly formed gage plate 7, adjustably secured to the outer side of one of the plates 3 by bolts 8 which pass through the plate 3 and through transverse slots 9 formed in the plate 7. The bolts 8 are provided with washers 10 and thumb nuts 11 whereby the gage plate is secured in it's adjusted positions. By thus arranging the plate 7 the same may be adjusted to permit the use of the gage on doors of different thickness.

Slidably engaged with the housing 2 is a mortise marking plate 12 having formed on its outer edge a series of pointed studs 13, spaced at equal distances apart and adapted to be forced into the edge of the door to mark the centers for the holes to be bored for forming the mortise for the lock. The plate 12 has secured thereto a stem 14 which slidably engages the tubular shank of the housing 2 and projects a suitable distance beyond the outer end of the same and through the end of the handle 5. Arranged in the stem 14 near its outer end is a transverse stop pin 15 with which is engaged a washer 16. On the stem between the washer 16 and the outer end of the shank 4 is arranged a coiled spring 17 the pressure of which is exerted to retract and to yieldingly hold the marking plate 12 in a retracted position.

On the other side of the right angular plate 7 are adjustably secured knob and key hole marking bars 18 having formed in their inner ends longitudinal slots 19 with which are engaged fastening bolts 20 secured in the side of the plate 7 and having on their threaded outer ends thumb nuts 21 whereby the bars are securely fastened in their adjusted positions. In the outer ends of the bars 18 are formed holes 22 through which are adapted to be projected marking studs 23, fixed in the outer ends of the flat leaf springs 24 which are riveted or otherwise rigidly secured to the outer ends of the bars as shown, and normally hold the studs in a retracted position.

In the operation of the gage the thickness of the door is first obtained. The gage plate 7 is then set or spaced from the marking plate 12 to a distance equal to one half the thickness of the door so that when the device is engaged with the door with the door.

edge of the gage plate against one side thereof the marking plate will be exactly in line with the center of the edge of the \Vhen in this position a slight tap with a hammer or other instrument on the projecting end of the stem will drive the studs 13 into the edge of the door thus marking the centers for the holes to be bored for cutting the mortise. For marking the positions for boring the knob and key holes, the distance from the edge of the lock to the center of the knob shank hole and key hole therein is measured and the bars 18 adjusted to this distance whereupon when the device is engaged With the edge of the door to form the mortise the studs 23 in the outer ends of the springs 24 are tapped lightly and thus projected through the holes 22 in the outer ends of the bars and into engagement with the side of the door thus marking the places for the knob and key holes.

From the foregoing description, taken in connection with the accompanying drawings, the construction and operation of the invention will be readily understood Without requiring a more extended explanation. Various changes in the form, proportion and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention, as defined in the appended claims.

Having thus described my invention what I claim is l. A lock setting gage, comprising a body portion consisting of a housing, having right angular door engaging plates, a gage plate adjustably secured to one of said door engaging plates, a mortise marking plate slidably engaged wit-h said housing, and means carried by the gage plate to gage the knob and key holes in the door.

2. A lock setting gage, comprising a body portion consisting of a housing having right angularly formed door engaging plates, a tubular handle shank secured to said housing, a handle engaged with said shank, a marking plate slidably mounted in said housing, a stem on said plate said stem having a sliding engagement with said handle shank, a spring to normally hold said marking plate in a retracted position, studs arranged on said plate and adapted to be driven into the edge of the door when the plate is projected and a gage plate adjustably secured to one of the door engaging plates.

3. A look setting gage, comprising a body portion consisting of a housing having right angularly formed door engaging plates,

a tubular handle shank secured to said housing, a handle engaged with said shank, a marking plate slidably mounted in said housing, a stem 011 said plate said stem having a sliding engagement with said handle shank, a spring to normally hold said marking plate in a retracted position, studs arranged on said plate and adapted to be driven into the edge of the door when the plate is projected, a gage plate adjustably secured to one of the door engaging plates, and adjustable means carried by the gage plate to gage the knob and key holes of the door. 4. A lock setting gage, comprising a body portion consisting of a housing having right angularly formed door engaging plates, a tubular handle shank secured to said housing, a handle engaged with said shank, a marking plate slidably mounted in said housing, a stem on said plate said stem having a sliding engagement with said handle shank, a spring to normally hold said marking plate in a retracted position, studs arranged on said plate and adapted to be driven into the edge of the door when the plate is projected, a gage plate adjustably secured to one of the door engaging plates, knob and key hole gaging bars having slotted inner ends and apertured outer ends, bolts arranged in said gage plate and adapted to engage the slotted inner ends of said bars, clamping nuts arranged on said bolts whereby said bars are fastened in their adjusted posit-ions and spring retracted studs adapted to be driven through the apertured outer ends of said bars tovmark the places for the knob and key holes of the door.

5. A lock gage comprising a body portion formed from a sheet metal plate bent upon itself to form a housing and having its edges bent at right angles to form door engaging plates, a tubular handle shank secured to said body portion, a handle secured thereto, a marking plate slidably mounted in said housing, a stem secured to said plate and having a sliding engagement with said tubular handle shank, a spring arranged on said stem to hold said plate in a retracted position, a right angular gage plate having an adjustable engagement with one of said door engaging plates whereby the position of said marking plate is determined and adjustable means carried by the gage plate for gaging the knob and key holes of the door.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

HARRY Looornn.

lVitnesscs:

C. C. BRYANT, A. M. CHASE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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