US 2863692 A
Description (OCR text may contain errors)
o. w; MANN Dec. 9, 1958 ADJUSTOR FOR THE RECEPTION OF LOCK CATCHES Filed Aug. 23, 1956 FIG.2
INVENTOR OSWALD WYNDHAM MANN United States Patent ce ADJUSTOR FOR THE RECEPTION OF LOCK CATCHES Oswald Wyndham Mann, Montreal, Quebec, Canada Application. August 23,. 1956, Serial; No. 605,879 1 Claim. (Cl; 292-34118) The invention relates to an adjustor for the reception of lock catches as described in the present specification and illustrated in the accompanying drawings that form a part of the same.
The invention consists essentially of the novel features of construction as pointed out broadly and specifically in the claims for novelty following a description containing an explanation in detail of acceptable forms of the invention.
The objects of the invention are to secure the catch particularly in doors, regardless of how much play may have occurred between the door edge and the door jamb, due to warping, settling, or because of wear and tear in the catch chamber or strike plate; to accomplish this purpose in a simple effective and economical manner with a minimum of effort and without the requirement of any mechanical skill; and generally to provide an adjustor for the reception of catches which will be simple to install, durable in construction and efficient for its purpose.
In the drawings:
Figure l is a plan view of the adjustor plate.
Figure 2 is a plan view of an insert.
Figure 3 is a perspective view illustrating the introduction of an insert in the slot of the adjustor plate.
Figure 4 is a fragmentary view of a door jamb illustrating a strike plate secured thereto and the adjustor plate mounted between the strike plate and the jamb surface.
Figure 5 is a cross sectional view as taken on the lines 55 in Figure 4.
Figure 6 is a fragmentary view of a door jamb illustrating the use of the adjustor for a strike plate and the introduction of an insert.
Figure 7 is a cross sectional as taken on lines 77 in Figure 6.
Figure 8 is a fragmentary view of a door jamb having a strike plate secured thereto, and showing an adjustor plate between the door jamb and the strike plate and the application of a plurality of inserts.
Figure 9 is a cross sectional as taken on the lines 9-9 in Figure 8.
Like numerals of reference indicate corresponding parts in the various figures.
For the purpose of this description, the invention will be explained for use in relation to the spring catch currently used in door lock connection, but it is obvious that the idea can be employed to any construction where such security is desirable, such as cabinets, desks, doors or other structures.
Referring to the drawings, the fitting consists of a strike plate adjustor, as indicated by the numeral 10, provided with a lip 11 and a slot 12, the plate proper having a fiat surface with the lip projecting laterally along one edge thereof and being slightly bevelled at the top across its length to facilitate the latch in finding its position as at 13. The slot 12 extends longitudinally in the flat portion of the plate adjacent to the lip portion for the introduction therein an insert or inserts 14 as a means of increasing the adjustment over the primary adjustment made by the lip of the adjustor.
The construction of the lock catches formed in a door jamb is. similar to such construction as are being used at the present time, that is to say, a recess 15 is; formed in the door jamb, for the reception of a lock catch, and the strike plate 17 surrounds the recess 15 and isv secured to the door jamb 16 and isxprovided with a catch open ing coinciding with the recess in the door jamb. The striker plate is. formed in the usual manner with an offset portion 18 which forms an integral part of the plate.
The. plate adjustor 10 is located between the door jamb and the offset portion 18' of the strike plate 17 and having the slotted portion thereof and the lip protruding into the recess 15 of the door jamb and the amount of protrusion will depend on the adjustment necessary between the inner recess portion or contact surface of the strike plate and the catch.
The insert piece 14 is formed of a flat piece of stiff material having a vertical section 19 which is provided with an integral lateral strip 20 set at an angle from the vertical section so that when the insert piece is inserted through the slot of the strike plate adjustor it will be self locked therein so as to prevent any possibility of the insert being pushed out of its position. The vertical section 19 of the insert will thus be kept in close abutment with the lip 11 of the plate adjustor and there will be little chance of the insert being disengaged from its position.
In certain cases where the lock catch does not properly engage with the strike plate, it may only be necessary to use the adjustor plate which is introduced between the face of a door jamb and the offset portion of the strike plate and the lip of the adjustor will form the contact surface for the catch, and as this' lip has a bevel edge its insures a proper engagement therewith by the lock catch and even though the latter may have certain portions of its contact surface worn or out of alignment due to warping, settling, by the door frame, door, flooring or other causes.
Wherever the use of the plate adjustor is not sufficient in itself an insert or inserts may be inserted in the slot of the plate adjustor and act as spacers between the lip portion of the adjustor and the contact surface of the strike plate, and in that way, the lip of the plate adjustor may be projected further into the recess of the door jamb for proper engaging contact with the lock catch.
All that is necessary to make the necessary adjustment is to loosen the fastening members of the strike plate from the door jamb so as to leave sufiicient space between the offset portion of the strike plate and the door jamb surface for the introduction of the plate adjustor and when the lip portion thereof is located in the recess of the jamb all that is necessary to be done is to push the lip in close abutment with the bearing edge of the strike plate, and then tighten the fastening members. In that Way a new bearing surface is made for contact with the lock catch.
If the use of the plate adjustor alone is not suflicient, the adjustor is projected further into the recess so as to include a portion or all of the slot thereof within the recess and one or more inserts or spacers are inserted in the slot of the adjustor and are self locked therein, and then the lip and the accompanying spacers are pushed in close abutment with the bearing surface or edge of the strike plate.
It will be of course understood that modifications and 3 What I claim is: In an adjustor for the reception of a lock catch, a door jamb having a recess forming a catch chamber, a strike plate secured to said door jamb and encircling the recess formed therein and having an offset portion, a strike plate adjustor formed of a flat strip having one end turned outwards to form a lip with a slight bevel and provided with a vertical slot adjacent to the lip, said strike plate adjustor adapted to be introduced at any desired vertical location between the offset portion of said strike plate and said door jarnb in such a way that the lip portion thereof will be wholly and the slot portion at least partially located in the catch chamber, and adjusting self locking inserts formed of fiat pieces of stifi material of varying thicknesses, each insert having a vertical section provided with an integral lateral strip set at an angle from the vertical section, said inserts adapted to be introduced into the slot of said strike plate adjustor and to be self locked therein and to come into abutment with the lip portion of said strike plate adjustor and the edge of the strike plate so as to form adjustable holding spacers between the lip and the strike plate, the lip portion of the strike plate adjustor forming a contact surface for engagement with said lock catch at all times.
References Cited in the file of this patent UNITED STATES PATENTS