US386133A - Burglar-alarm - Google Patents
Burglar-alarm Download PDFInfo
- Publication number
- US386133A US386133A US386133DA US386133A US 386133 A US386133 A US 386133A US 386133D A US386133D A US 386133DA US 386133 A US386133 A US 386133A
- Authority
- US
- United States
- Prior art keywords
- door
- firing
- alarm
- burglar
- key
- 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
- 238000010304 firing Methods 0.000 description 22
- 210000001699 lower leg Anatomy 0.000 description 12
- USXDFAGDIOXNML-UHFFFAOYSA-N fulminate Chemical compound [O-][N+]#[C-] USXDFAGDIOXNML-UHFFFAOYSA-N 0.000 description 4
- 238000004880 explosion Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
Images
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B15/00—Identifying, scaring or incapacitating burglars, thieves or intruders, e.g. by explosives
Definitions
- My invention relates to that class of detonating burglar-alarms shown in my United States Patents Nos. 193,002 and 224,017.
- the object of my present improvements is to provide a burglaralarm which can be readily attached to the inside of a door, and then can be adjusted in the firing position by means of a key from the outside of the door, so that when the door is attempted to be opened the alarm will be fired.
- Figure 1 is a longitudinal section, partly in elevation, of my firing-cylinder in position for firing applied to a door which opens outwardly.
- Fig. 2 is another view of my firing-cylinder applied to a door which opens inwardly, showing a modified form of connecting it to the door, and showing the stop which is necessary to be used where the door opensinwardly.
- Fig. 3 is a plan view of the device shown in Fig. 2, the dotted lines indicating it turned out of the firing position; and Fig. at is another modified form of means of connecting the firing mechanism to a door.
- A indicates a firing-cylinder; B, a spring plunger; 0, a slot for the fulminate; D, ahollow projection for the escape of the gas, and E a shank for attaching the firing-cylinder. All these parts are substantially similar to the firing-alarm mechanism shown in my said patents.
- My present improvements consist in means, which I will now describe, for applying such a firing mechanism adjustably upon the inside of a door, so that it may be operated by a key from the outside after the door is closed to adjust it to such position that it will be fired in case of an attempt to open the door.
- F indicates a bed-plate
- G a circular base-plate attached to the shank of the firingcylinder.
- H indicates clips or holders for securing the base-plate in position to rotate upon the bedplate.
- I indicates an opening in the shank for the key K.
- Fig.1 which showsthedevice applied upon a door opening outwardly
- Fig.1 shows thedevice applied upon a door opening outwardly
- all that is necessary to make it operate is to set the plunger by means of its holdingnotch X in the firing position, then close the door, apply the key, and turn the firing-cylinder a quarter of a revolution to a horizontal position. Then when the door is attempted to be opened the outer end of the plunger will strike the door-jamb, release it, and fire the fulminate Z.
- any suitable form of key may be used, and any suitablemeans of applying the firing mechanism to the inside of a door, so that it will turn a quarter of a revolution, may be employed without departing from the substance of my invention.
- Fig. 2 I show clampscrews M.
- Fig. 4 I show a curved angle-bar, N, which admits of very readily attaching and detaching the base-plate of the shank of the firing mechan- 18111.
- a firing-cylinder and its firing mechanism In a detonating lmrglar-alarm, the combination of a firing-cylinder and its firing mechanism, a shank for the cylinder provided with a key-hole, a key to rotate the shank-cylinder and firing mechanism, a base-plate for the shank, and means for holding the base-plate to place upon the inside of a door, so that the 'key will operate from the outside, substantially as set forth.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Burglar Alarm Systems (AREA)
Description
(No Model.) 2 Sheets-Sheet 1.
' J. ISRAEL.
BURGLAR ALARM.
No.- 386,188. Patented July 17, 1888.
mu m
IJJIHTTUWH NTOR J2) .ZZsraeZ, By 7112? flttorn (No Model.) I
2 Sheets-Sheet 2.. J. ISRAEL.
BURGLAR A LARM No. 386,133. Patented July 17, 1888.
, /z/g-Z.
NTOR. t John "ael,
UNITED STATES PATENT OFFICE.
JOHN ISRAEL, OF ST. LOUIS, MISSOURI.
BURGLAR-ALARM.
SPECIFICATION forming part of Letters Patent No. 386,133, dated July 17,1888.
Application filed February 2, 1988. Serial No. 262,794.
To aZZ whom, it may concern.-
Be it known that I, JOHN ISRAEL, of St. Louis, in the State of Missouri, have invented certain new and useful Improvements in Burg larAlarm Mechanism, of which the following is a specification, reference being had to the accompanyingdrawings.
My invention relates to that class of detonating burglar-alarms shown in my United States Patents Nos. 193,002 and 224,017.
The object of my present improvements is to provide a burglaralarm which can be readily attached to the inside of a door, and then can be adjusted in the firing position by means of a key from the outside of the door, so that when the door is attempted to be opened the alarm will be fired.
In the accompanying drawings, illustrating my improvements, Figure 1 is a longitudinal section, partly in elevation, of my firing-cylinder in position for firing applied to a door which opens outwardly. Fig. 2 is another view of my firing-cylinder applied to a door which opens inwardly, showing a modified form of connecting it to the door, and showing the stop which is necessary to be used where the door opensinwardly. Fig. 3 is a plan view of the device shown in Fig. 2, the dotted lines indicating it turned out of the firing position; and Fig. at is another modified form of means of connecting the firing mechanism to a door.
A indicates a firing-cylinder; B, a spring plunger; 0, a slot for the fulminate; D, ahollow projection for the escape of the gas, and E a shank for attaching the firing-cylinder. All these parts are substantially similar to the firing-alarm mechanism shown in my said patents.
My present improvements consist in means, which I will now describe, for applying such a firing mechanism adjustably upon the inside of a door, so that it may be operated by a key from the outside after the door is closed to adjust it to such position that it will be fired in case of an attempt to open the door.
F indicates a bed-plate, and G a circular base-plate attached to the shank of the firingcylinder.
H indicates clips or holders for securing the base-plate in position to rotate upon the bedplate.
(No model.)
I indicates an opening in the shank for the key K.
Referring to Fig.1,whichshowsthedevice applied upon a door opening outwardly, it will be seen that all that is necessary to make it operate is to set the plunger by means of its holdingnotch X in the firing position, then close the door, apply the key, and turn the firing-cylinder a quarter of a revolution to a horizontal position. Then when the door is attempted to be opened the outer end of the plunger will strike the door-jamb, release it, and lire the fulminate Z.
In case it is desired to apply the firing-alarm to a door opening inwardlyas, for example, an ordinary front door of the dwellingI provide a catch, L, Fig. 2, on the door-jamb U. which will release the spring plunger and cause an explosion whenever the door T is opened inwardly, the firing-alarm being operated by the key from the outside of a door, as before described, to adjust it into the firing.
Any suitable form of key may used, and any suitablemeans of applying the firing mechanism to the inside of a door, so that it will turn a quarter of a revolution, may be employed without departing from the substance of my invention.
In Fig. 2 I show clampscrews M. In Fig. 4 I show a curved angle-bar, N, which admits of very readily attaching and detaching the base-plate of the shank of the firing mechan- 18111.
\Vhat I claim to be new, and desire to soon re by Letters Patent of the United States, is-
In a detonating lmrglar-alarm, the combination of a firing-cylinder and its firing mechanism, a shank for the cylinder provided with a key-hole, a key to rotate the shank-cylinder and firing mechanism, a base-plate for the shank, and means for holding the base-plate to place upon the inside of a door, so that the 'key will operate from the outside, substantially as set forth.
In testimony whereof I have hereunto subscribed my name.
JOHN ISRAEL.
\Vitnesses:
Martens S. HOPKINS, G. l ELwELL.
Publications (1)
Publication Number | Publication Date |
---|---|
US386133A true US386133A (en) | 1888-07-17 |
Family
ID=2455117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US386133D Expired - Lifetime US386133A (en) | Burglar-alarm |
Country Status (1)
Country | Link |
---|---|
US (1) | US386133A (en) |
-
0
- US US386133D patent/US386133A/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US386133A (en) | Burglar-alarm | |
US386134A (en) | Burglar-alarm | |
US280002A (en) | weight | |
US178875A (en) | Improvement in burglar-alarms | |
US224017A (en) | Burglar-alarm | |
US600068A (en) | Burglar-alarm | |
US336155A (en) | Administratrix of carl pior | |
US224791A (en) | Alarm-lock | |
US175612A (en) | Improvement in burglar-alarms | |
US763042A (en) | Fire-alarm apparatus. | |
US961440A (en) | Fire-alarm box. | |
US392805A (en) | johnsolsr | |
US312806A (en) | Combined door spring and bell | |
US816932A (en) | Key-box for fire-alarms. | |
US176340A (en) | Improvement in burglar-alarms | |
US118345A (en) | Improvement in burglar-alarms | |
US675570A (en) | Burglar-alarm. | |
US1344178A (en) | Burglar-alarm | |
US437682A (en) | Electric safe-lock | |
US790124A (en) | Burglar-alarm. | |
US31957A (en) | Dook-alarm | |
US583952A (en) | Thomas j | |
US1054448A (en) | Alarm. | |
US279064A (en) | williams | |
US563202A (en) | William j |