US 653693 A
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Description (OCR text may contain errors)
No. 653.693 Patented July l7, I900. W. E. PARKER. DOOR KNOB ROSE.
(Application filed Mar. 3, 1900.
LOU/755555 KWW- W NITED STATES PATENT OFFICE.
WILLIAM E. PARKER, OF NEWV BRITAIN, CONNECTICUT, ASSIGNOR TO THE RUSSELL (is ERWVIN MANUFACTURING COMPANY, OF SAME PLACE.
SPECIF CATION forming part of Letters Patent No. 653,693, dated July 17, 1900.
Application filed March 3, 1900. Serial No. 7,164. (No model.)
To all whom it may concern.-
Be it known that LWILLIAM E. PARKER, a citizen of the United States, residing in New Britain, in the countyof Hartford and State of Connecticut, have invented a new and useful Improvement in Door-Knob Roses, of which the following is a specification, reference being had to the accompanying drawings, forming a part thereof.
to My invention relates to improvements in knob-roses; and the main object of my improvement is to provide a hollow or raised-up sheet-metal rose-plate with an internal support adjacent to the knob-spindle.
In the accompanyiing drawings, Figure 1 is a front elevation of my knob-rose having a combined rose and escutcheon plate. Fig. 2 is a rear elevation of the upper part of the same. Fig. 3 is a horizontal section thereof on the line 50:1: of Fig. l, and Fig. 4 is a front elevation of my knob-rose with a rose-plate substituted for the combined rose and escut-cheon plate.
The combined rose and escutcheon plate 5 is formed of comparatively-thin sheet metal struck up in dies, so as to elevate or project its central portion 6 and form What I term a hollow back. This plate may be of any desired contour and is provided with screw-holes 7 for use in securing the plate to a door. I prefer to force the metal inwardly around the screw-holes in an old and Well-known manner. An ordinary keyhole 8 is formed at the proper point in the plate 5, and a round hole 9,
5 Fig. 2, is formed in the said plate to receive the knob-rose center 10. I form the said rosecenter of sheet metal, with its front of the desired diameter to receive the end of the knobshank and with a circular boss 11 on its back,
the said boss being of a diameterto be received in the hole 9.
In order to support the rose-plate against the endwise pressure of the knob-shank and prevent the metal at the middle portion of the 5 plate from being crushed in toward the door, I secure the flanged supporting-ring 12 within the hollow back of the plate 5 immediately back of the rose-center. The supporting-ring is formed of sheet metal of sufficient thickness to resist such endwise pressure as will ordinarily be exerted on the knob-shank, and it is struck up into what may be called cupshaped, with a border flange and with a cen tral hole of a size to receive the circular boss 11 of the rose-center 10. The depth of the supporting-ring-that is, its dimension from front to rear-is equal to the depth of the depression on the back of the plate 5. The circular boss 11 is of a cylindrical form when first made, and it is passed through the round hole 9 in the plate 5 from the front, after which the supporting-ring 12 is placed over the'said boss 11 from the back of the said plate, and the outer end of the boss 11 is turned over to secure the said parts firmly together, as shown in Fig. 3.
It will readily be seen that the rear face of the flanged supporting-ring 12 is in the same plane as the rear of the plate 5 at its edges, so as to rest against the surface of the door to which the rose may be applied. The rear face of the said ring is broad enough to form a firm bearing that cannot be compressed into the surface of the wood, and the depth of the ring 12 from front to rear is such as to prevent. the middle portion of the plate 5 from being depressed or bent out of place. I am thus enabled to construct the plate 5 of thin metal and connect the same With the rose-center in an inexpensive manner, and at the same time the said thin-metal plate is firmly supported and may be cheaply given any desired orna mental form or design.
In Fig. 4 the plate 5 is designed for a roseplate onlyinstead of a combined rose and cs cutcheon plate, as in the preceding figures.
It. has the same rose-center 10, secured in the manner and by the means hereinbefore described.
I claim as my invention- 0 The combination of the struck-up sheetmetal rose-plate having an elevated plate-like middle portion that forms a hollow back,with the rose-center on the front of the said plate, and the supporting-ring on the rear thereof for supporting the middle portion of the said sheet-metal rose-plate against the endwise pressure of the knob'shank, substantially as described.
WILLIAM E. PARKER.
F. G. TAYLOR, C. L. BLIss.