US538128A - Window-sash burglar-alarm - Google Patents
Window-sash burglar-alarm Download PDFInfo
- Publication number
- US538128A US538128A US538128DA US538128A US 538128 A US538128 A US 538128A US 538128D A US538128D A US 538128DA US 538128 A US538128 A US 538128A
- Authority
- US
- United States
- Prior art keywords
- window
- sash
- alarm
- burglar
- wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010276 construction Methods 0.000 description 4
- 230000000875 corresponding Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
Images
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
- G08B13/08—Mechanical actuation by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind
Definitions
- the Object is to produce a device of simple and inexpensive construction, and that may also bythe addition of a pawl be used as a combined window fastening and alarm by which a window may be secured in a closed position and a signal sounded upon its being opened.
- the invention comprises a toothed wheel Vrotatably Vmounted upon the lower sash of a window and engag ⁇ ing a rack bar upon the upper sash, and a bell supported adjacent the wheel, the clapper thereof 'being actuated by projections upon the wheel.
- Figure l is a view in front elevation of one embodiment of the invention with the front plate of the casing removed.
- Fig. 2 is a View Serial No. 524,770. (No model.)
- An alarm comprising a toothed wheel rotatably mounted upon the lower sash of a window and engaging a rack bar upon the upper sash, abellsupported adjacent the wheel, the clapper thereof being actuated by projections upon the wheel, as speciiied.
- An alarm comprising a toothed wheel rotatably mounted upon the lower sash of a window and engaging a rack bar upon the upper sash, a bell supported adjacent the wheel,
- the clapper thereof being spring held and adapted to be actuated by projections upon the wheel, substantially as described.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Burglar Alarm Systems (AREA)
Description
(NOM eeee AAAAAAAAAAAAAAAAAAAAA M.
Patented Apr.' 23, 1895.
. mgl
x mum a vIO UNITED STATES PATENT EEICE.
JACOB SOHONEBERGER, OF BROOKLYN, NEW YORK.
Wl NDOW-SASH BU RG LARWALARMl SPECIFICATION forming' part of Letters Patent NO. 538,128, dated April 23, 1895.
Application led October 2,"1 894.
To all whom it may concern:
Be it known that' I, JACOB SCHONEBERGER, a citizen of `the United States, residing at Brooklyn, in the county of Kings and State ot' New York, have invented new and useful Im-v provements in a Combined Window-Fastening and Burglar-Alarm, of which the following is a specification. This invention relates to burglar alarms.
The Objectis to produce a device of simple and inexpensive construction, and that may also bythe addition of a pawl be used as a combined window fastening and alarm by which a window may be secured in a closed position and a signal sounded upon its being opened. 1
With this object in view, the invention comprises a toothed wheel Vrotatably Vmounted upon the lower sash of a window and engag` ing a rack bar upon the upper sash, and a bell supported adjacent the wheel, the clapper thereof 'being actuated by projections upon the wheel.
The inventionnis illustrated in the accompanyin g drawings, forming a part of this specification, in which like letters of reference indicate corresponding parts in both views.
Figure lis a view in front elevation of one embodiment of the invention with the front plate of the casing removed. Fig. 2 is a View Serial No. 524,770. (No model.)
disk a7, which, upon rotation of the wheel, engages and trips a spring clapper a8 causing it to strike the gong and sound an alarm. Be- 4 5 rack upon raising or lowering the sash the signal will sound.
The advantages of this invention lie in its extreme simplicity of construction, low cost of manufacture, effectiveness in operation and the convenience and readiness with which it 6o may be applied.
Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-
1. An alarm comprising a toothed wheel rotatably mounted upon the lower sash of a window and engaging a rack bar upon the upper sash, abellsupported adjacent the wheel, the clapper thereof being actuated by projections upon the wheel, as speciiied.
2. An alarm comprising a toothed wheel rotatably mounted upon the lower sash of a window and engaging a rack bar upon the upper sash, a bell supported adjacent the wheel,
the clapper thereof being spring held and adapted to be actuated by projections upon the wheel, substantially as described.
In testimony whereof I have hereunto affixed my signature in the presence of two subscribing witnesses.
JACOB SCHONEBERGER.
Witnesses:
JAS. REYNOLDS, CHAs. KROECK, Jr.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US538128A true US538128A (en) | 1895-04-23 |
Family
ID=2606888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US538128D Expired - Lifetime US538128A (en) | Window-sash burglar-alarm |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US538128A (en) |
-
0
- US US538128D patent/US538128A/en not_active Expired - Lifetime
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