US912570A - Drawer-lock. - Google Patents

Description

E. G. HOLLAND.

DRAWER LOCK. APPLICATION riLEn MAR. 19, 1906.

912,570, Patented Feb. 16, 1909.

2 SHEETS-SHEET 1.

Znuenfior L'M 6 ZKWQQQQQ c. HOLLAND. DRAWER LOCK. APPLICATION FILED IAB. 19, 1906.

Patented Feb. "16, 1909.

2 sums-51mm 2.

the shaft C. i

- to which my UNITED STATES PATENT OFFICE.

ELIAS U. HOLLAND, .Ol" Blu'N'lOIw lL-ii-tHOlt, MICHIGAN, ASNIGNOR TO METAL SECTION/\L FURNITURE COMPANY, OF lOlt'lhANll, MAliill, A LOltlOllAllON.

DRAWER-LOCK.

Specification of Letters Patent.

Patented Feb. 16, 1909.

Application filed March 19, 1906. Serial No. 306.940.

'10 all whom it mayconcern:

Be it known that I, ELIAS C. HOLLAND, a citizen of the United States, and residing at Benton Harbor, in the State of Michigan, have invented certain new and useful Improvements in Drawer-Locks, of which the ollowing is a full and accurate description, reference being had to the accompanying drawings.

My lnvention relates to that class of drawer locks adapted to look a number of drawers b one mechanical movement, and has specia reference to that class of devices known as cabinet files.

In the drawings, Fi ure 1 shows a pers ective of a cabinet file to which class of evices my lock is specially adapted. Fig. 2 shows a broken sectional View of the file shown in Fig. 1 taken throughthe line 2 of Fig. 1. Figs. 3, 4, 5, 6, 7, 8, 9 and 10, are details showing in particular the construction of my invention. More particularly described, A represents the cabinet, and B the d awers of the same, look is attached.

My lock is described as follows: To the cabinet A I attach a shaft C. One end of this shaft is journaled within the rear of said case A, at c.. The other end 0 rests within a bore in the shank of a screw D which passes through the front of the cabinet A. A nut E is fitted upon the shank of the screw D, whereby the said screw is held in place within the front of said cabinet A. A collar F is slidingly engaged with said shaft C, and is fitted with a flange f which slides within the slotted end a of the shaft CI The end of the screw D is slotted at d, which slot is designed in operation to engage the flange f slidin within the slotted end 0 of 11 order to normally hold the collar F forward in engagement with the screw D, I fit behind it on the shaft 0, a spiral spring 0 supported at one end by the said collar F and at the other by the shoulder 0 A key J fitted with a shank designed to enter the slot 0 of the shaft C, through the bore in the screw D, is provided to operate the lock.

To effect the engagement of the drawers B, B, I provide the following means. Along the rear of the cabinet A, Iarrange a bar G, which carries a series of latches g, g, and is slidingly connected with said cabinet A, being held in place by brackets g g. The

' latches g g are designed to engage with certain respective apertures b b in the rear ortion of the drawers B. B. The bar (1 is made to slide along the rear of said cabinet A by means of a cam H, engaging the said bar at the perforation 9 This cam H is fitted to the rear of the shaft C and consists of the cam h and a 12.1 or portion h designed to hold said bar G in p ace on said cam h and against the rear of the cabinet A, see Fig. 2.

In operation the key J is inserted within the slot 0 of the shaft 0, and drives the collar F out of engagement with the fixed shank of the screw D. The shaft 0 is then rotated by the use of the key, and the action of the cam 11 upon the bar G, withdraws the latches g g, from the a erture b, b, and releases the drawers B. B. 0 look the drawers a reverse movement is necessary. Close all the drawers then rotate the shaft C and the latches g, g, will pass again into engagement with the drawers. The flange f of the collar F will a ain, when opposite the slotted shank d 0' the screw D, be made to slip into engagement therewith b the action of the spring 0 and thereby t e shaft cannot be rotated or the drawers unlocked again, without the use of the key J, as described.

What I claim as my invention is:

1. In a cabinet file a drawer lock compris ing a rotating shaft secured to said file, a cam fitted on said shaft, a lock bar having engagement with said cam and with the drawers of said file and means of locking said shaft, consisting of slotted screw shank fixed to said file, a slot cut in one end of said shaft, a collar sliding on said shaft carrying a flange having sliding en agement with said slotted end on the said s aft, and adapted to engage the said slotted screw shank, and a spiral spring mounted on said shaft and engaging said sliding collar, whereby said collar and flange is normally held in engagement with said screw shank.

2. In a cabinet file, a drawer lock comprising slotted drawers, a lock bar and latches attached thereto, having engagement with said slotted drawers, a rotating shaft secured to said file, a cam fixed upon said shaft, and engaging said lock bar, and means for locking said shaft consisting of, a center bored screw fixed to said file, the inner end of said shaft being slotted and enga ing said bored screw, a s ring actuated col ar mounted on said sha t, a flange fitted to said collar and having I slidin engagement with said slotted'end of} said shaft against rotation consistin of a said s aft, and adapted to normally enga e said slotted screw, and a key adapted to e passed throu h said bored screw and into said slotted s aft whereby said fiange may be forced out of engagement with said slotted screw, and said shaft made to rotate.

r 3. In a cabinet file a drawer lock consisting of a rotating shaft secured to said file, a cam fitted on the end of said shaft, a lock bar having engagement with said cam and with the drawers of said file, and means for locking I collar havin sliding en agement wit said shaft, a lug tted on said collar, and having 15 slidin engagement with a slot fitted within said s aft and ada flzed to prevent the rotation of the said co ar upon the'said shaft, and a key adapted to disen age the said lug from the frame of the said file.

I ELIAS C. HQLLAND. Witnesses:

W. H. CoRNwELL, AGNES BROWN.

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