US54202A - Improved fire-alarm - Google Patents
Improved fire-alarm Download PDFInfo
- Publication number
- US54202A US54202A US54202DA US54202A US 54202 A US54202 A US 54202A US 54202D A US54202D A US 54202DA US 54202 A US54202 A US 54202A
- Authority
- US
- United States
- Prior art keywords
- alarm
- improved fire
- fire
- powers
- wires
- 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
- 239000000126 substance Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
Images
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/04—Hydraulic or pneumatic actuation of the alarm, e.g. by change of fluid pressure
Definitions
- the object of my invention is to detect or give notice of any fire or excessive heat endangerin g property at the earliest moment practicable, whereby many disastrous fires may be prevented, and much valuable property saved.
- Figure 1 shows a side view of an embodiment of my invention connected to an alarm-bell
- Fig. 2 shows a variation of the way of making the connections.
- a A is a frame supporting the several parts.
- B is the bell; D, the hammer with its springs; O, the barrel with pins to operate the hammer 5 O, the weight with cord winding on O 3 shown in Fig. 2'; or, it thought best, the substance may be made into wire and thus carried to all exposed points.
Description
R. POWERS.
Fire Alarm. I
No. 54,202. I Patented April 24, 1866.
' zf 66368 7 f/Zw y? 73 NITED STATES PATENT OFFICE.
RUFUS POWERS, OF PRESCOTT, MASSACHUSETTS.
IMPROVED FIRE-ALARM.
Specification forming part of Letters Patent No. 54,202, dated April 24, 1866.
To all whom it may concern:
Be it known that I, RUFUS POWERS, of Prescott, in the county of Hampshire, State of Massachusetts, have invented a new and useful Improved Fire-Detecter and I do hereby declare the following to be a full, clear, and exact description of the same, due reference being had to the accompanying drawings.
The object of my invention is to detect or give notice of any fire or excessive heat endangerin g property at the earliest moment practicable, whereby many disastrous fires may be prevented, and much valuable property saved.
To these ends its nature consists in placing in such places as may be best certain connections which operate at a certain degree of heat, and connecting them by wires or other suitable means to an alarm or other apparatus to make their action known.
It is well known that many substances melt or become soft at various degrees of heat, and by selecting one that melts at that point'or degree beyond which it is not deemed safe to go,
and so constructing my connections that when heated to that degree they shall act and connect this action, or make it give warning, Iaccolnplish the desired ends.
Figure 1 (see drawings) shows a side view of an embodiment of my invention connected to an alarm-bell, and Fig. 2 shows a variation of the way of making the connections.
A A is a frame supporting the several parts. B is the bell; D, the hammer with its springs; O, the barrel with pins to operate the hammer 5 O, the weight with cord winding on O 3 shown in Fig. 2'; or, it thought best, the substance may be made into wire and thus carried to all exposed points.
The operation is evident. or softening of material used the wires part, and thus release the alarm or give notice of the heat.
I am aware that threads have been used to place in exposed places, so that on being burnt off they shall give an alarm, and also that fusible plugs have been used to indicate danger.
These I do not claim; but
What I claim as new, and desire to secure by Letters Patent, is-
The use of fastenings or connections for wires in fire-alarms, so constructed with soft metal or other substance that they shall melt and release the wires or give the alarm upon being heated.
RUFUS POWERS.
Witnesses E. A. THOMAS, B. M. THOMAS.
On the melting
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US54202A true US54202A (en) | 1866-04-24 |
Family
ID=2123745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US54202D Expired - Lifetime US54202A (en) | Improved fire-alarm |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US54202A (en) |
-
0
- US US54202D patent/US54202A/en not_active Expired - Lifetime
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