US1418593A - Adjustable portable door fastener - Google Patents

Description

R. E. MAcKELLAR. ADJUSTABLE PORTABLE DOOR FASTENER.

APJPLILMTIQN FILED MAR. ll, L L, Pat J n fi 2 SHEETS-SHEET I.

U l? I fiEMKeZZ-ar R. E. MAcKELLAR. ADJUSTABLE PORTABLE DOOR FASTENER.

Patentedjune 6,1922.

I 2 SHEETS-SHEET 2.

APPLICATION FILED MAR. H. 1921- I attuned;

REM/r6 2m]:

arren STATES]- Ronm'r n. MACKELLARQ Asirnann, 0 10,,

ra rsrsrr ADJUSTABLE roia'riinrn noonrAs'rn'ivER.

T 0 all whom it may concern: I Be it known that I, Ronnn'r KELLAR, a citizen of the United States, re-

:siding at Ashland,- in the county of Ashland and State of Ohio, have invented a new and useful Adjustable Portable Door Fastener,

; of which the following is" a specification.

' shown in horizontal section;

The object of my invention is to provide I ban adjustable portable fastener which a person can carry from place to place and" readily apply to any door to preventunauthorized entrance 'from the outside, inasmuch as the fastenercan not b'efi'forced or jimmied oil the door without breaking off the casing or door;'-and to provide a fastenor of this kind adapted to fit any of several varietiesof doors. It is also an object of my invention to provide a 'fastener oi this type whichican be applied to theadoor without the aid of screws, bolts or other tools and which may be put on in a few secends. I attain these and other objects of of the invention with a flush door and door casing shown in horizontal section;

Fig. 7 is a section on lines 7-7 of Fig. 5; and i Fig. 8 is a detail sectional view. on line 88 of Fig. 6. I

Like numerals designate like parts in each of the several views.

Referring to the accompanying drawings.

My invention is adapted for use either with a door which is flush with the jamb as illustrated in Fig. 6, or with a door where the j amb projects beyondthe door as illus-. trated in Fig. 2. In either instance 1 deslgnates the door and 2 the door j amb, having the usual bolt opening '3. I provide a lock bar 4 having a hook end 5 adapted to engage in the bolt opening 3 in the door j amb. Lock bar 4; is provided with a bent outer end to which is attached a chain 7 which engages in opening'8 in the lock arm 9.

Specification of reads rate'nt'.

E. MAC-I;

' The inner'edge of lock farm 9 Patented June :6, 1922. I

. Application filed-March 1 1, 192 1." Se"ria1No 151,530.

k *ZLFIH 9 is provicled with an enlarged ably groovedfba-se or shoulder 'llinay be rovided with a suitable protective covering 1 shoulder or base 11 with which the member r 9 forms Ran L-shap'ed element. Thepreier- 13' of rubber, fel'tor the like. Lock arm 9 is provided with a slantingnotelied *oiiteii T edge-asshown-i'n Figs. '2 and 'o; Lock bar 4 is provided with a suitable slot 15 on which is slidab'ly mounted an adjusta'ble s1ot' iec1e-14,as shown in Fig.

or a slide plate 17 ,and overlapping portion 18 as shown in F 5, which together have I i a corresponding function to that 'of memher 14. Member 14 is provided with a *s'uitable ,set screw- I6," and mei'nber 17 "is" pro vided with a sui'ta'blef'set scre'w19, tlieiiinc tion of which is identical, namely, tov secure the slide piece l and slidefplatel? i'esp'ec tively in adjusted positions abutting against the notched edge chain or lock bar.'9

shown in Fig. 3 and Fig. 5{

withfa suitable longitudinal eirte'ndingdove- "s provided i tail groove' l2 in which mayl'b'e suitably mounted a correspondingly dovetailed block 20, as shown in FigKG, said block'2 O being provided only when the lock is used with a type of door wherethe "door and .jamb are flush, in-which case it is necessary to fill in thesplace between the'inner edge of the look and "the door j amb, as shown in the a form zolf the inventionilliistrated 1 in Fig. 6. Blocl'r 20 is provided with a suitable pro'-' tective covering 21 of felt rubber or like material on that surface of the block which abuts against the door jamb.

I may provide a soft filler of rubber or other material (not shown) to be placed in groove 12 as a protection against marring the finish ofthe woodwork, block arm 9 is i used without block 20, saidiiller having the J same function as theprotective covering 21" shown in Fig. 6.

To apply the device the door 1 is opened and the lock bar hook 5. is inserted in the opening 3 of'the lock casing plate of the conventional lock used already-on the door. The lock bar t will'thenprotrude past" the edge or" the door and far enough pastithe casing so thatftlielock arm 9 can be in serted in the slot 15 of the lock bar. The

slide piece 14 (as shown in Fig. 3 or the i similarly functioning slide plate. 17, is moved intoabutment with the notched slanting outer edge of lock arm 9 and secured 'in engagement therewith by tightening the I tailed correspondingly with the dovetailed tion of the invention otherwise being the groove in lock arm 9 is slid into engagement therewith, so as to abut agalnst the door amb or casing as shown in Fig. 6, the operasame as that of the form of the device shown in Figs. 1-3. Once the fastener is on in the manner describedthe only. way to remove it is to take it off from the inside as it is notexposed from the outside and cannot be removed from the outside without breaking the door or casing. I

In the case of an old door the adjustable slide piece is moved further back making use of the larger portion of the slide 15 so as'to permitthe arm 9 to move out further, thus giving the same effect and result, as is obtained on the standard door. 'It will be observed that the device is readily portable and can be applied to various kinds of doors providing an eflicient fastener which can not be tampered with without breaking in the door itself. 7 a

What I claim is 1. In a portable adjustable fastener of the class described, a hook end engaging in the bolt opening of the door casing, said bar having a longitudinal slot, a securing element slidably mounted in said slot, a set screw securing said element in adjusted position, an approximately L-shaped' lock arm insertable through the said slide in the lock bar, saidlock arm having. a slanting notched I outer edge with which the securing element engages, a chain connecting the lock arm with the outer edge of the lock bar, said lock bar being horizontally disposed when in position to lock the door, the aforesaid lock arm being longitudinally grooved, and

means slidably mounted on the grooved portion of said lock arm forholding same in adjusted spaced relation to a door casing for use on door casings that are flush with the door, for the purposes described;

2. Ina portable adjustable fastener of the class described, the combination of a lock bar having a hook shaped end adapted to engage in the conventional bolt opening of the door, an adjustable slide piece slidably mounted on said lock bar, an L-shapedlock arm having a slanting notched outer edge,

said lock arm having an L-shaped shoulder mounted on the lockarm whereby the block abutting against the door, a block slidably may abut'against the door casing and the L-shaped shoulder of the lock arm may-abut against the door, and means for securing the adjustableslide piece in snug engagement with the'notched slanting edge ofthe lock arm, for the purposes described. In a portable adjustable fastener of the class described, the combinationof a lock bar having a hook shaped end adapted to engage in the conventional boltropening of the door, an adjustable slide piece slidably mounted on said lock bar, an L-shaped lock arm having a slantin'gand notched. outer edge, said lock arm having an L-shaped shoulder abutting against the door, and hav-i ing a dovetailed groove providedalong its longitudinal inner edge, a eorrespondingly dovetailed block slida-bly engaging in said groove, whereby the blockmay abut against the door casing and the L-shaped shoulder of the lock arm may abutagainst the door,

and means for securing the adjustable slide piece in snug engagementwith the notched slanting bar of the lock arm substantially as and for the purpose described.

ROBERT E. MAGKELLAR,

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