US764482A - Spline-weight. - Google Patents

Description

No. 764,482. PATENTED JULY 5, 1904;

F. K. LORD.

SPLINE WEIGHT.

APPLIOATION FILED FEB. 18. 1904.

N0 MODEL.

WITNESSES. HVVENTOR fiedefz'cislilard Kan/ ' By W ATTORNEYS no. 764. 182, v

Patented July 5, 1904.

FFIEFQ FREDERICK K. LORD, OF BAYONNE, NEW JERSEY.

SPLlNE-WEIGHT- SPECIFICATION forming part of Letters Patent No. 764,482, dated July 5, 1904. Application filed February 18, 1904. Serial No. 194,135. (No model.)

To all whom it may concern.-

Be it known that I, FREDERICK K. LORD, a citizen of the United States, and a resident of Bayonne, in the county of Hudson and State of New Jersey, have invented a new and 1mproved Spline-WV eight, of which the following is a full, clear, and exact description.

The invention relates to drawing instruments; and its object is to provide a new and improved spline-weight arranged to firmly hold the spline or batten in a curved position at any desired place on the drawing-surface to allow the draftsman to conveniently draw a line along the unobstructed front edge of the spline.

The invention consists of novel features and parts and combinations of the same, as will be more fully described hereinafter and then pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a plan view of the improvement. Fig. 2 is a sectional side elevation of the same on the line 2 2 of Fig. l, and Fig. 3 is a cross-section of the same on the line 3 3 of Fig. 1.

The body A of the spline-weight is preferably made of metal and provided at one end with a handle A, adapted to be taken hold of by the draftsman for conveniently moving the body over the drawing B to the desired place. The under side or bottom of the body A is preferably covered with a fabric A to hold the body A against accidental sliding on the surface of the drawing-paper and also to protect the drawing from being scratched by the weight, it being understood that the body is made solid and sufficiently heavy to firmly rest on the surface of the drawing-paper to allow drawing the desired line without requiring other fastening means for holding the body to the surface of the paper.

On the front portion of the body A is socured a transversely extending bar C, in which screw a number of clamping-screws D, each extending with its shank through an elongated slot E, formed lengthwise in a finger E, having a downwardly-curved point E adapted to engage the top surface of a spline or batten F, preferably made of soft rubber and having a front faceF, of hardened rubher, along which front face the line is drawn by a suitable drawing-tool upon the surface of the drawing paper. By loosening the clamping-screws D the lingers E can be adjusted lengthwise or turned on the clampingscrews to bring the points of the lingers into the desired position to give the desired curvature to the spline and to hold the same firmly down'on the drawing-paper B, so that the front edge F of the spline conforms to the shape of the line to be drawn and the spline is held firmly in place to allow the draftsman to draw a line along the edge F upon the drawingpaper. As the body A is held against accidental movement on the drawing-paper, it is evident that the spline F is similarly held, and the draftsman is enabled to accurately draw the desired line along the edge F upon the drawing-paper. By the arrangement described the line may be duplicated on another portion of the denying-paper by the operator sliding the body A, and with it the spline F, on the drawing-paper until the desired place is reached, it being uiulerstood that the points E of the lingers embed themselves sufficiently in the soft material of the spline to move the latter along on shifting the body A, as above explained.

The top surface of the cross-bar C is preferably a distance above the top surface of the body A, so as to allow convenient adjusting of the lingers E for the points thereof to properly engage the top surface of the flexible spline F, the points of the lingers leaving the front edge F of the spline completely unobstructed to enable the draftsman to conveniently draw the line along the said edge.

The device described is especially serviceable in laying out lines for marine vessels and the like.

Havingthus described my invention, I claim as new and desire to secure by Letters Patent 1. A spline-weight comprising a heavy body adapted to rest on a drawing, and a plurality of fingers held adjustably on the said body and provided with points for engaging the top of the flexible spline, to hold the latter down in firm contact with the surface of the drawing, and leaving the front edge of the spline unobstructed, as set forth.

2. The combination with afiexible spline, of a spline-weight having a heavy rigid body, provided on its bottom with means for holding the weight against accidental sliding on the surface of a drawing, and fingers adjustably secured on the body and adapted to frictionally engage the top of the said spline, to hold the latter firmly down on the surface of the drawing, as set forth.

3. A spline-weight having a rigid heavy body provided at one end with a handle, and

at the other end with a transverse bar, extend-

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