US1222396A

US1222396A - Antirattler door-lock.

Info

Publication number: US1222396A
Authority: US
Inventors: Carl John Hagstrom
Original assignee: ANNA E HAGSTROM
Current assignee: ANNA E HAGSTROM
Priority date: 1915-07-22
Filing date: 1915-07-22
Publication date: 1917-04-10
Anticipated expiration: 1934-04-10

Description

(3.1. HAGSTROIVI.

ANTIRATTLER DOOR LOCK.

APPLICATION FILED IuLY 22, 1915.

pw@ y l memdApr. 10,1917.

as Parana orare.

CML JOHN HGSTROM, 0F GLEN COVE, NEW YORK, ASSIGNOR TO ANNA. E. HAGSTROM,

0F GLEN COVE, NEW YORK. I

ANTIRATTLER DOOR-LOCK.

To all fwhom t mag/concern:

Be it known that 1, CARL JoHN HAG- srRoM, a subject of the King of Sweden, and a resident of Glen Cove, in the county of Nassau and State of New York, have invented a new and improved Antirattler Door-Lock, of which the following is a full, clear, and exact description.

This invention relates to builders hard# ware and has particular reference to locks and latches for swinging doors or the like.

One of the principal objects of the invention is to prowde a lock for a swinging door, the catch of which is hidden or retracted within the casing when the door'is opened and which is automatically thrown into holding or loclng position when engaging a member on the door frame. Another object of the invention is to provide a means whereby the catch member is caused automatically to so act upon the striking member or keeper as to take up any lost motion between the door and the strike and thereby prevent rattling of the door when in closed position.

With the foregoing and other objects in view, the invention consists in the arrangement and combination of parts hereinafter described and claimed, and while the invention is not restricted to the exact details of construction disclosed herein, still for the purpose of illustrating apractical embodiment thereof reference is had to the accompanying drawings, in which like reference characters designate the same parts in the several views, and in which- Figure 1 is aside elevation of one form of the improvement indicating the door closed;

Fig. 2 is a longitudinal section of the same on the line 2-2 of Fig. 1;

Fi 3 is a view corresponding to Fig. 2 but s owing theparts in a diderent relative position;

Fig. 4 is a view of the same nature as Fig. 3 but showing a modified form of the invention' Fig. 5 is a view of the same form of invention shown in Fig. 4, but showing the parts in locked position; andv Fig. 6 is a longitudinal section on the line 6-6 of Fig. 4.

Referring now more particularly to Figs.

Specification of Letters Patent.

Patented Apr. 111, 191'?.

Application led July 22, 1915. Serial No. 41,268.

l, and 3, I show at 10 a fragment of a swlnging door which may be regarded as a refrigerator door and carrying a lock casing 11. At 12 is indicated the door frame or striking member carrying a. keeper 13. r1`he keeper includes a catch actuator in the form of a ixed lug or pointed projection 14 having a beveled face 15, the ypoint extend* lng toward the door and outwardly from the strike 12. Between the actuator 14 and a shoulder 16 is left an opening or space 17.

At 18 is indicated a bell crank catch pivoted on a xed pivot 19 in the casing 11 and having a point 20 adapted to engage the f actuator and glide along the inclined surface 15 thereof when the door goes shut, and whereby the catch is swung through approximately 90 degrees around its pivot with the point of the catch lying within the keeper. The door and casing are notched, as shown at 21, to 'admit the point of the actuator. At the rear end of the casing is arranged a ixed member 22 shown as a pin parallel to the pivot 19 against which is seated a block 23 slidably mounted in a tubular bolt 24 having a bifurcated end 25 straddling the pin 22. Within the bolt is a strong spring 26 acting between the block 23 and the closed end of the bolt. The force of the spring tends to close the bolt outwardly or away from the block 23 and pin 22. Said outer end of the bolt is pivotedv at 27 to the bell crank catch 18, and during the pivotal movements of the catch 18 the center of the pivot 27 is adapted to pass the line joining the centers of the pivot 19 and pin 22 whereby the force of the spring tends to hold the catch in either extreme position. rFhis type of lock is especially used in connection with refrigerator doors for the reason that when the door is closed the point 20 of the catch striking against the actuator 14 will throw the catch around to the left, as shown in Fig. 3, causing the pivot 27 to pass the dead center and thereupon the spring 26 willvautomatically continue the movement of the catch in the same direction, causin the outer face of the free arm of the catch Fever to bear against the shoulder 16 irrespective of the amount of lost motion between the door and the strike, the result being that the catch will edectively hold the .door snugly closed independently of any As an indication of suitable means to unlock the door, the tubular bolt 24 is provided with a lug 28 adjacent its inner end extending toward the front portion of the casing 11 in position to be engaged by a lug 29 of a bell crank finger piece pivoted at 31 in the casing. When the free end of the finger piece is grasped and drawn outwardly in the direction of the arrow, Fig. 2, the lug 29 engaging the lug 28 throws the bolt 24 inwardly against the force of the spring and thereby withdraws the catch from the keeper. This-movement of the linger piece sets the parts shown in Fig. 3, where they remain until the door is again closed.

In the modied form of the invention there is provided a keeper- 13 having a shoulder 16 and an opening 17 of the same nature as already described. The casing 11 is arranged in the same manner substantially as abovedescribed, and has within it a slidable tubular bolt 24 movable along or over a fixed abutment 22 between which and the other end of the bolt is interposed a strong spring 26. The catch 18', while acting against the shoulder 16 substantially the` same as in the other form of the invention, is not attached to the spring operated bolt, but is acted upon by said bolt by a sliding motion, the point of the bolt bearing against the face ofthe catch opposite the face which engages the shoulder. The spring acting upon the bolt, however, and in turn upon the v catch, acts in precisely the same manner to take up such motion and thereby prevent rattlingof the door when closed. The catch is pivoted on a fixed pivot 19 and has an angularly directed lug 27 which is adapted to be engaged by a hook 32 at the free end of the bolt 24 when the bolt is drawn inwardly againsmtthe spring. rlhis action of the bolt is effected by a finger piece 30 suggested as used in this form of the invention the same as in the first form, a lug 29 bearing against a lug 28 carried by theinner end of the bolt.

The form of the invention shown in Figs. 4, 5 and 6 is designed especially for automobile doors or the like, where a positive lock is desired to hold the door closed, the bolt projecting` into'the keeper serving to prevent the opening movement of the catch 18 prior to the positive withdrawal of`the bolt from locking position by the finger piece or its equivalent. ln the other form of the invention it will be observed that it is possible for the door to be opened bodily without first releasing the catch, although the force of the spring is ample for holding the door closed under ordinary conditions. This type of lock, therefore, may be used to advantage on cupboards, book cases and other places where a positive lock is not demanded.

When the bolt 24 is retracted and the hook 32 swings the catch 18 within the casing 11, the parts are held in such position by means of an actuator 14 includinga hook 33 engaging into a notch 34 near the outer end of the bolt, the actuator being moved around its pivot 35 for. this purpose by a light spring 36. A finger 37 extends laterally through a slot 38 in a plate 39 and thence outwardly parallel to the main part of the actuator in position to strike a lug 15 on or adjacent the keeper 13. When the door goes shut, this linger striking the lug 15 withdraws the hook 33 from the notch 34 allowing the force of the spring 26 to throw the bolt outwardly and thereby throw the catch 18 into the keeper as already explained, the extent of movement of the bolt and catch being determined by the amount of looseness in the door.

l claim:

1. In a door lock of the character'set forth, the combination of a casing, a bell crank catch pivoted in one end of the casing, the free end portion of the catch being adapted to house within the casing or to swing beyond the same, a keeper cooperating with the catch when projected, a tubular bolt within the casing cooperating with the catch meinber to move it around its pivot, a spring acting upon the bolt to move it in one direction, a finger piece acting against the bolt to move it in the opposite direction against the force of the spring, and means associated with the keeper to cause the catch to be projected antomatically.

2. In an anti-rattler door lock, the combination of a casing, a bell crank catch pivoted to one end of the casing, a tubular spring pressed bolt pivoted to one end of the catch tending to hold the same in either of its extreme positions with its free end either housed within the casing or projected outwardly therefrom, a keeper adapted to receive said free end of the catch, and a stationary actuator adapted to be engaged by said Jfree end of the catch to cause it to swing outwardly into engagement with the keeper.

3. ln a door lock, the combination of a casing, a bell crank catch pivoted in one end of the casing, a fixed abutment adjacent the other end of the casing, a tubular bolt within the casing, pivoted at one end to one end of the catch, the other end of the bolt being bifurcated and straddling said abutment, a block fitted slidably within the tubular bolt and bearing at one end against the abutment, a coil spring located within the bolt abutting at one end against the other end of said block and tending to cause the bolt to swing the catch around its pivot .to project the free ond thereof forcibly outward beyond the casing, the bolt, however, being movable when its axes are crossed and beyond the line joinment, whereby the catch may be heid retracted Within the casing, another bell crank pvoted in the casing and having one end adapted t-o engage the bolt against the force of the spring to throw the catch in one direction around its pivot, associated with the casing and including a projecting actuator serving to engage the free end of the catch and cause it to swing in the opposite direc CARL JOHN HAGSTBOM.

Witnesses.:

PHILIP D. ROLLHAUS,

A. H. DAVIS.