No. 420,232 – Plane For Planing The Bottom Of Grooves In Moldings And Ornamental Wood-Work (Gustav Heÿmeier) (1890)
UNITED STATES PATENT OFFICE.
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GUSTAV HEŸMEIER, OF BREMEN, GERMANY.
PLANE FOR PLANING THE BOTTOMS OF GROOVES
IN MOLDINGS AND ORNAMENTAL WOOD-WORK.
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SPECIFICATION forming part of Letters Patent No. 420,232, dated January 28, 1890.
Application filed June 1, 1889. Serial No. 312,910. (No model.)
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To all whom it may concern:
Be it known that I, GUSTAV HEŸMEIER, sculptor, of Bremen, in the Free State of Bremen and German Empire, have invented a new and useful Improvement in Planes for Planing the Bottoms of Grooves in Moldings and Ornamental Wood-Work, of which the following is a specification, reference being had therein to the accompanying drawings.
My invention relates to tools for planing the bottoms of grooves in moldings and ornamental wood-work, and has for its object to provide an effective tool for that purpose.
The invention consists in a plane of the character specified, constructed as hereinafter described and claimed.
Reference is to be had to the accompanying drawings, forming a part of this speciiication, in which similar letters of reference indicate corresponding parts in all the figures.
Figure 1 is a front view of the invention. Fig. 2 is a bottom view. Fig. 3 is a cross-section on the line A B of Fig. 1. Fig. 4 is a view of the blade with its guard-plate, and Fig. 5 is a cross-section of one of the handles of the tool on the line C D of Figs. 1 and 2.
The invention consists of a frame a, preferably hollow, as shown, and made of metal, and constituting the central portion a’ and the handles a2. On the bottom of the frame a is centrally located a plate b, secured by screws b’ to the central portion a’ of frame a. The plate b is provided with an opening b2, through which projects a blade c extending up through an opening b3 in the top of frame a, the blade c being movable through the openings b2 and b3. The blade c is clamped in fixed position by means of a shield-plate f also projecting through openings b2 and b3, and a screw g, passing through a washer g’, a slot g2 in frame a, over which the washer g’ extends, and a slot c’ in blade c, and engages plate f. By means of this construction the plate f and blade c may be adjustably raised and lowered and clamped in position. Within the central portion a’ is also located a vertical guide-piece e, projecting through an opening e’ in the plate b and opening e2 in the top of frame a, and vertically adjustable by means of a screw d engaging the guide-piece e and extending through a slot d’ in frame a, and a washer d2 overlapping the slot d’. The lower end of piece e projects in front of the projecting end of blade c, is in the form of a tooth, and is made of bone or other suitable material.
The piece e prevents the blade c from cutting too deeply into the wood.
The depth of the cavity to be planed is determined by the length of the blade c projected beyond the plate b.
The lower end of the plate f is formed with the rounded edge f’, and when the bottom of a groove is to be planed the plate f is adjustably lowered so as to bring its lower end down to the cutting-edge of the blade c, and the shape of the curved bottom of the groove is thereby retained while the tool is planing the bottom of the groove.
Having thus fully described my invention, l claim as new and desire to secure by Letters Patent —
A tool for planing moldings, consisting of the frame a, with handles a2, the removable plate b, with openings b2 e’, the vertically-adjustable curved shield-plate f, and the vertically-adjustable slotted blade c, projecting through opening b2, the binding-screw g, extending through slotted blade c and engaging plate f and the vertically-adjustable tooth e, projecting in front of the edge of blade c, and having the adjusting-screw d extending through the slot d’ in frame a, and the overlapping washer d2, substantially as shown and described.
In witness whereof I have hereunto set my hand in presence of two witnesses.
GUSTAV HEŸMEIER.
Witnesses :
EARNST BIERNRITH,
HUGO MÜHLENBACH.
