US890377A - Alarm-switch. - Google Patents

Description

No. 890,3'7'7. PATENTED JUNE 9, 1908.

A. G. SAXE.

ALARM SWITCH. AYPLIOATION FILED MAB. 14, 1898.

fnl mmm: Pirna w.. wAsMmmN, D., c

UNITED sTATEs PATENT oEEioE.

ANDREW C. SAXE, OF WINSTED, CONNECTICUT, ASSIGNOR TO WM. L. GILBERT CLOCK COM- PANY, A CORPORATION OF CONNECTICUT.

ALARM-SWITCH.

T o all whom it may concern.'

`Be it known that I, ANDREW C. SAXE, a citizen of the United States, residing at Winsted, county of Litchfield, State of Connecticut, have invented certain new and useful Improvements in Alarm-Switches, of which the following is a full, clear, and eXact description.

My inventionrelates to alarm clocks, and particularly to improvements in the construction and operation of a so-called switch to render the alarm inoperative when desired.

The object of the invention is to provide for the mounting of the switch upon the center of the back of the clock without interfering with the positioning of the hand set through said center.

A further object is to provide the switch with means whereby it may be protected against displacement from its operative path.

With these and other objects in view, as will hereinafter appear, the invention consists in the construction and arrangement of parts illustrated in the accompanying drawings, in which Figure 1 is a rear viewof the clock, the alarm bell being removed for clear illustration. Fig. 2 is a sectional v iew of the interior, looking from the front, the works being removed to show thel mounting of the alarm hammer. Fig. 3 is a vertical section upon the line 3-3 Fig. 1. Figs. 4 and 5 are detail views of parts hereinafter described.

In the form of my invention herein illustrated, the alarm bell 1 is shown as mounted upon the back of the clock (Fig. 3) by any suitable supporting means. The alarm hammer 2 is carried by the arm 3, which is pivoted upon the pintle 4 within the clock and in convenient operative position with respect to the hammer actuating mechanism (not shown). The hammer arm 3 projects through a suitable, aperture 5 in the back plate of the clock across the path of the switch 6, which, as here shown, is constructed in the form of an arm pivoted at 7 upon the center of the back plate.

In order that the mounting of the switch arm 6 may not interfere with the hand set 8, Fig. 3, the inner end of the switch arm is drawn up, as at 9, in the form of a hollow rivet, as clearly shown in Fig. 5, which is upset Within the aperture 10 at the center of the back plate, thus affording an unobstructed Specification of Letters Patent. l

Application filed March 14, 1908.

- Patented June 9, 1908.

Serial No. 421,030.

path for the extension of the hand set 8 through said back plate. A

It is obviously within the scope of the invention to draw up the rivet from the back plate, and this construction will be preferred in the case of the larger sizes of clocks wherein the switch is made of heavier material, whereas the back plate in practically all sizes of clocks is of substantially uniform thickness. y

To prevent displacement of the switch arm from its o erative path, the free end thereof is provided with means to hold the same securely against the back plate 11. As here shown, said end is bent at 12 over and around the rim 14 of the back plate, as shown in Fig. 3, thereby not only securing the switch arm firmly to the back and against accidental displacement from its operative path, but also affording convenient means for` movement of the switch to operative and inoperative positions.

To limit the movement of the switch arm to inoperative position, a nib 13 (Fig. 1) may be struck up from the back plate adjacent the path of said arm, while one of the studs,

i as 14, for securing the parts of the clock in assembled` position, may be utilized to limit movement of the switch in the opposite direction to operative position. The switch arm may be curved, as at 15, Fig. l, to provide a shoulder 16, which in operative position of the arm lies directly across the path of the hammer arm 3, for more effective blocking of the movement of the said arm than would be possible were the switch formed as a straight radial arm.

What I claim is:

1. In` an alarm clock, an alarm bell and hammer therefor, a switch mounted at the center of the back of said clock and adapted to render said alarm inoperative, and attaching means for said switch constructed and arranged to leave an aperture for the hand set at said center.

2. In an alarm clock, an alarm bell and hammer therefor, a switch mounted at the center of the back of said clock and adapted to render said alarm inoperative, and a hollow rivet for attaching said switch arranged to leave an aperture for the mounting of the hand set at said center.

3. In an alarm clock, an alarm bell and hammer therefor, a switch mounted at the center of the back of said clock and adapted to render said alarm inoperative, and an attaching rivet between said switch and back struck up from one of said parts and constructed to leave an aperture for the mounting of the hand set at said center.

4. In an alarm clock, an alarm bell and hammer therefor, the back. plate of said clock having an aperture at the center thereof, and a switch to render said alarm inoperative having a rivet drawn up therefrom and upset in said aperture, leaving free passage for the hand set at said center.

5. In an alarm clock, an alarm bell and hammer therefor, and an alarm switch centrally mounted at the back of said clock, attaching means for said switch constructed to leave an aperture for the hand-set at said center and means at the outer extremity of said switch to prevent displacement thereof from its operative path.

6. In an alarm clock, an alarm bell and hammer therefor, an alarm switch centrally mounted at the back of said clock, and having means engaging the periphery of said clock to prevent displacement of the switch 25 ing its outer extremity hooked over the pe- 30 ripheral rim of said back plate to prevent displacement of the switch from its operative ath. P 8. In an alarm clock, an alarm bell, a hammer therefor, a switch centrally mounted at the back of said clock, and means at the outer extremity of said switch to prevent displacement thereof from its operative path and to provide for frictionally holding switch in adjusted position,

ANDREW C. SAXE. Vitnesses I-IARVEY L. SLAUsoN, SAMUEL A. WETMORE.

Images