US2538647A - Lock escutcheon - Google Patents

Description

A. F. LICKTEIG LOCK ESCUTCHEON Jan. 16,- 1951 Filed June 9, 1947 \NvaNToR ALBERT F. LLQKTEJC-r ATTORNEYS Patented Jan. 16, 1.951

LOCK ESCUTCHEON Albert F. Lickteig, Grand Rapids, Mich., assignor to National Brass Company, Grand Rapids Mich., a corporation of Michigan Application June 9, 1947, Serial No. 153,500

2 Claims. (Cl. 70 -381) 1 This invention is directed to a novel structure of escutcheon and mounting therefor, which es cutcheon carries at one side a manually operable means for projecting and withdrawing a locking bolt at the free vertical edge of a hinged door, and at the other side a lock, the actuation of which by a key will do the same things.

The various thicknesses'of doors has required in general escutcheon mountings one for each of theseveral door thicknesses. Some attempts have been made to provide a single escutcheon structure of several parts, requiring that there be three individual rings for three different standard thicknesses, one of which will be used for the minimum thickness. It and a second ring together will be used for an intermediate thickness. And both are discarded and a special third ring used for the maximum thickness of door.

. Such attempted solving of the problem-is no different in practical economy from making three special rings, one for each thickness of the door, which in effect has been used steadily, and which it is one object and purpose of my invention to improve.

With my invention two rings only. are used for the varying thicknesses of the door, one for a minimum thickness, a second one for the intermediate thickness, and the two together for the maximum door thickness. A novel structure has been provided to successfully secure such result with economy.

A further object and purpose of my invention is to so connect the manually operable means for projecting or withdrawing the lock bolt at the inner side of the door, and the key operated look at the outer side of the door, that they will operatively join together without change in any manner with all of the three various door thicknesses. With all other lock structures of the type noted, the connection of the inside manually operable means and the key operatedmeans is by "parts which require no change for one of the three thicknesses of the door, but for the other two thicknesses a part of one of the joining members has to be broken off or otherwise removed, there being different lengths removed for the two additional door thicknesses. My invention eliminates this operation and the danger of injury to the lock coming therefrom, making the installation more certain and cheaper to perform.

V An understanding of the invention may be had from the following description, taken in connection with the accompanying drawing, in which,

; Fig.1 is a fragmentary elevation of the outer side of a door'having the novel escutcheon struc-:- ture of my invention applied thereto, Fig. 2 is a vertical transverse section, substantially on the plane of line 22 of Fig. 1, Fig. 3 is a horizontal section substantially on the plane of the line indicated at 3-3 in Fig. 1, both the sections in' Figs. 2 and 3 being taken looking in the directions indicated by the arrows, Fig. 4 is a horizontal section, as in Fig. 3, with an intermediate thickness of door, thicker than that shown in Fig. 3, and H Fig. 5 shows the application of the invention to a door of a still greater or maximum thickness. Like reference characters refer to like parts in the different figures of the drawing.

The door indicated at I in Figs. 1, 2 and 3, is of a minimum thickness. In'Figs. 4 and 5 the doors of diiierent greater thicknesses are indicatedat 2 and 3. In all thedoors, adjacent the free vertical edge and between its upper and lower ends, a cylindrical opening 4 is bored. horizontally through from one side to the other, and from the edge of the door a horizontal opening 5 is bored until it meets the opening at 4. A housing 6 of sheet metal flattened and reduced in width at its inner end, as indicated at I, is connected with a face plate 8 screw attached at the vertical edge of the door, the housing including at its outer end a surrounding band or sleeve 9, and the bolt (not shown) is mounted for slidable movement within the housing to pass through an opening in the plate 8 for projection outwardly to engage with a keeper on a door jamb. The detail of the housing and bolt construction is not a part of the, present invention, the structure of the bolt and housing being subject to a considerable variation.

At the inner side of the door, in all the installations with various door thicknesses, a sheet metal member In, in the form of a shallow cup, is used to cover the inner end of the transverse opening 4. From it, at its inner side, a sheet metal generally cylindrical housing H extends having a closed inner end with a rectangular opening therethrough. Such housing member I l is se cured by a press fit or other equivalent manner to the inwardly extending stem of a rotatable thumb member or knob l2 which may be manually turned at the inner side of the door. The inner end portion of the stem is longitudinally recessed providing a longitudinal axial opening It. An actuating bar or spindle M of flat metal passes through the rectangular opening in the closed end of the housing H and is capable of a relative longitudinal movement with respect to the knob 12, without, being disengaged from the housing I l I cludes two ring members.

pass into the transverse opening 4.

within the limits provided by the alinecl longitudinal openings or recesses in the parts and I2 and the length of the spindle i i. For example, in Fig. 2 with the narrowest door in width, the end of the spindle bar 14 is nearer the bottom of the recess IS in the thumb member i2 than it is in the thicker doors Figs. 4 and 5. Said spindle bar passes through the bolt housing and has the regular well known operative connection to the bolt for projecting or withdrawing the bolt upon turn. ing said bar in opposite directions. Elongated screws l5 also pass through the escutcheon plate and extend into the transverse opening 4 as shown.

The structure at the outer side of the door in- One indicated at 16 is of a substantially cup form with continuous annular flanges and having an outer side through which a circular opening .is made surrounded by a flange 1'1 pressed into the plate. to form a shallow seat. The other outer ring member [8 is also of thin metal, adapted to telescope partly over the outer portion of the walls of the first'described oute ring member, as in Figs. 2 and 3, and similarly at its outer side having an opening the same diameter as that through the outer side of the member H5, and surrounded by a like inwardly pressed flange l9 to provide an identical seat. in the outer ,ring member as in the inner one.

The look is adapted to be mounted atthe inner side-oi a circular flat plate20, which has a diameter and thickness such that it may be received in the seat provided byeither of the inset annular flanges l1 or [9. From the inner side of the plate 20 posts 2| extend and are adapted to They are interiorly bored and threaded at their free ends for the reception of the screws 15. A key operated lock 22 is secured at the inner side of the plate. 2 0 by holding bands or stirrups 23 in a well known, old manner. The bar I4 is operatively connected with the turnable barrel of the lock in any one of a number of conventional ways used in the art for such purpose, the detail of which iS not, of importance with the present invention and need not be disclosed.

, When mounted upon the thinnest of the doors, the door ,I Fig. 1, the two outer ring members [6 and i8 are placed-together partly nested with the outer member [8 seated against the inner one, and the fiat circular plate 20 is received in the seat at the flan e IS. The inner and outer ring members are thereupon connected together by screws 15 and posts 21. This forms an operative structure as in Figs. 2 and 3, with all of the ring members utilized. The bolt may be projected or retracted by turning the knob l2 or by operating the key operated lock.

With the intermediate thickness of the door 2, as in Fig. 4, the inner ring member 16 at the outer side of the door is not used. Only the outer ring member 18 is used, the removal of the inner member I6 compensating substantially for the increased thickness of the door.

In the thickest door, shown in Fig. 5, the outer ring member 18 at the outer side of the door is not used, but only the member IS. The plate 20 isseated in the seat provided by the pressed-in flange H. The depth, that is, the dimension of the flanges of the ring member I6 is less than that of the member l8, compensating in part for the added thickness of the door in Fig. 3 over that of the door in Fig. 2. And there is ample leeway in the adjustable relation of the fiat spindle bar 14 to the manually operable knob l2, and. in the screw connection of the screws 15 with the posts 21, that in all cases with the thinnest, thickest and the intermediate thicknesses of doors, the installations are firmly secured in place, with the bolt midway between the opposed outer and inner sides :of the door.

Accordingly, with the present invention one standard assembly only is required. If in some cases either one or the other of the outer ring members are not used, the savings in manufacture through a reduction in the number of items which must be produced and kept in stock overba anees the. throwing away of one of the outer ringinembers. In the installing on a door, the liability of getting the wrong assembly for a doorthickness is avoided and there is also removed any necessity of having on hand and having the door installer :take with him several standard patterns in order to be sure that the rightone will be available, One assembly will take the place of, three and serve, for example, doors of 1%", 1% and'2 in thickness. The partial nesting of the ring IS in the ring [8 provides the correct outer distance of the seat I]. for the head 20 with the thickest door, as. in Fig. 5, with a suflicient outer distance of the seat [9 for the head 20 with the intermediate door thickness, as in Fig. 4, and the right outer distance and not too great, of the seat IQ for the head 20 with the thinnest door, as .inFig. 3.

The spindle l4 .does not have to be worked upon. andhave a part at the end thereoi, which enters the axial opening l3, cutaway or otherwise re,- moved. Nothing is needed in the way of tools for operation thereon. The telescoping of the spindle l4 into said axial opening l3 the varying distances required, with the different thicknesses of doors. takes care of the matter in all respects, with an economy in installation and elimination of errors, or any distoration of parts. because of breaking oii, cutting, or otherwise reducing the length of the spindle l4. And the savings from a manufacturing standpoint are apparent.

The invention is defined in theappended claims and is to be considered comprehensive of all forms of structure coming within their scope.

'I claim:

'1. An .escutcheon fo looks comprising a plurality of substantially round separable shells of different lengths arranged in end to end relation, each shell having a head at one end and being open at the other end, the open. end of one shell telescoping over the .head end of' the, other shell,

' an external peripheral shoulder on said other shell intermediate the ends thereof engaging the open end of said one shell to limit said telescoping, and the heads of both shells having identical and longitudinally aligned openings for the passage of fastening means.

2. The elements of claim 1 in which the heads of both shells have identical depressed sockets through which said openings pass for the reception of a lock.

ALBERT F. .LICKTEIG.

REFERENCES CITED The following references are .or record. in the file of this patent:

UNITED STATES PATENTS Number Name 7 Date 409,246 Severance Aug. 20,1889 1,461,756 Croning July 17, 1 923 1,829,814 Schlage Nov. 3, 1931

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