US446846A - Thermostat - Google Patents
Thermostat Download PDFInfo
- Publication number
- US446846A US446846A US446846DA US446846A US 446846 A US446846 A US 446846A US 446846D A US446846D A US 446846DA US 446846 A US446846 A US 446846A
- Authority
- US
- United States
- Prior art keywords
- disk
- contact
- binding
- thermostat
- screw
- 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
- 238000005266 casting Methods 0.000 description 8
- 239000012212 insulator Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 230000000284 resting Effects 0.000 description 2
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/46—Thermally-sensitive members actuated due to expansion or contraction of a solid
Definitions
- My invention relates to improvements in thermostats for fire-alarm purposes; and it consists in the peculiar combination and arrangement of devices, as will be hereinafter lescribed,and pointed out particnlarlyin the claims.
- My object is to provide a simple, cheap, and more effective device of this eharacter,using less wire for the main circuit than is now in use.
- Figure 1 is a view showing my improved thermostat as arranged for use.
- Fig. 2 is a a top plan view of the thermostat.
- Fig. 3 is a vertical sectional view of the same, taken througl'i the binding-posts.
- Fig. 4 is a vertical sectional view taken on a line 00 0c of Fig.
- Fig. 5 is a bottom plan view of the thermostat.
- A represents a thermostat, consisting of the porcelain base-block 15, provided with a central vertical opening therethrough, in which is secured the casing O, which has a vertical screw-threaded opening D therethrough, in which is adapted to be secured the upper screw contact-point E.
- a metal cross-bar II is secured to the under surface of the annular flange 1, formed by reccssing the base-block 13 at F by the se curing-screws J J, passing through the baseblock B,and beingin vertical alignmentwith the bindingposts K K, secured in the recesses in the upper surface of base-block B, engage the screw-tl'n'eaded vertical passages L and L therein.
- the bolts G which secure the expansion disk in place in the recessed surface of the base-block 3, extend through vertical passages in said base-block land are engaged by nuts 1", resting in recesses in the upper surface of the said disk.
- a conducting-strap Q is bent down at either end under the bindingpost K and one of the nuts P, the said ends being provided with perforations, through which pass the screw J of binding-post K and screw-bolt G of disk F, and thus connecting binding-post K and expansion-disk F, as will be readily understood.
- An insulator R prevents contact between screws J and connecting-bar H, thus breaking the circuit, as will be readily understood,when the disk F is not in contact with the lower contact-point S, secured in vertical screw tlireaded passages T of cross-bar H, or with the point E, the former being its normal condition.
- the operation of the invention is as follows:
- the thermostat is suspended from the ceiling of the building in a suitable manner by the connection of the wire with each binding-post.
- Situated in convenient position in the building is the house-box, shunt-coil, and opencurrent battery.
- the disk F expands, leaving the lower contact-point S.
- This causes the current passing from the main battery 1, through main relay 2, to and from house-box 3 to bindingpost K, and the circuit being broken passes through the wire 4 to shunt-coil 5, energizing the same and attracting the armature 6, which completes the open circuit.
- the disk expands sufficiently to come into contact wit-h upper contact-point E the circuit is completed,the current passing from the bindingpost K, through conducting-strip N to casting 0, through upper point E to expansion-disk F, thence through bolt G, conducting-strap Q, binding-post K, and main wire to main battery.
- a thermostatic circuit-controlling device the combination of an insulating-block having a recessed under surface, a disk sensitive to variations of temperature con- .tained in the said recess, two bindingscrews on the said base, a cross-bar below the said disk, having a contact-point thereon normally in contact with the said disk and connected with one of the said binding-posts,,and a metallic casting in the said block, having a contact-point projecting from its base within the said recess and connected with the said binding-screw, the said disk being connected'with the opposite bindingpost, as described.
- a thermostatic circuit-controlling device the combination of an insulating baseblock having a recessed under surface, a disk sensitive to variations in temperature within the said recess, a bolt passing through the said disk and the base-block, a binding-post upon the said block, and a strip connecting the said bolt and binding-post, a cross-bar spanning the said recess below the said disk and having a contact-point in its upper surface normally in contact therewith, a screw passing through one end of the said bar and insulated therefrom and extending into the said binding-post, a casting within the said block, having a contact-post projecting from its bottom over the said disk,a screw passing through the other end of the said bar and through the block,and abinding-point mounted thereon and connected with the said easting, as described.
Description
(No Model.) 2 SheetsSheet 1 I A.M.BARRON.
THERMOSTAT.
No. 446,846. Patented Feb. 24,1891.
2 Sheets-Sheet 2.
A. M. BARRON.
THERMOSTAT.
Patented Feb. 24,1891.
W a W W m (No Mo UNITED STATES PATENT OFFICE.
ADOLPII M. BARRON, OF KANSAS CITY, MISSOURI.
TH ERMOSTAT.
SPECIFICATION forming part of Letters Patent No. 446,846, dated February 24, 1891. Application filed September 19, 1890- Serial No. 365,530. (No model.)
T 0 all whom it may concern:
Be it known that I, ADOLPH M. BARRON, of Kansas City, Jackson county, Missouri, have invented certain new and useful 1m provements in Clhermostats, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.
My invention relates to improvements in thermostats for fire-alarm purposes; and it consists in the peculiar combination and arrangement of devices, as will be hereinafter lescribed,and pointed out particnlarlyin the claims.
My object is to provide a simple, cheap, and more effective device of this eharacter,using less wire for the main circuit than is now in use.
Referring to the drawings which illustrate the invention, Figure 1 is a view showing my improved thermostat as arranged for use. Fig. 2 is a a top plan view of the thermostat. Fig. 3 is a vertical sectional view of the same, taken througl'i the binding-posts. Fig. 4 is a vertical sectional view taken on a line 00 0c of Fig. Fig. 5 is a bottom plan view of the thermostat.
A represents a thermostat, consisting of the porcelain base-block 15, provided with a central vertical opening therethrough, in which is secured the casing O, which has a vertical screw-threaded opening D therethrough, in which is adapted to be secured the upper screw contact-point E.
A circular recess, concave when looking toward the bottom, is formed in the disk 13, in which is secured the concave metallic disk F by bolts G, which disk is adapted to expand when subjected to an excessive heat.
A metal cross-bar II is secured to the under surface of the annular flange 1, formed by reccssing the base-block 13 at F by the se curing-screws J J, passing through the baseblock B,and beingin vertical alignmentwith the bindingposts K K, secured in the recesses in the upper surface of base-block B, engage the screw-tl'n'eaded vertical passages L and L therein.
Secured in the upper end of passages L and L in posts K and K are the screws M. 0011- ducting-strap U is connected at one end to the casting C by screw 0, and the opposite end is bent down and under the binding-posts K, said end being provided with a perforation, through which the screw J passes.
The bolts G, which secure the expansion disk in place in the recessed surface of the base-block 3, extend through vertical passages in said base-block land are engaged by nuts 1", resting in recesses in the upper surface of the said disk.
A conducting-strap Q is bent down at either end under the bindingpost K and one of the nuts P, the said ends being provided with perforations, through which pass the screw J of binding-post K and screw-bolt G of disk F, and thus connecting binding-post K and expansion-disk F, as will be readily understood.
An insulator R, of suitable material, prevents contact between screws J and connecting-bar H, thus breaking the circuit, as will be readily understood,when the disk F is not in contact with the lower contact-point S, secured in vertical screw tlireaded passages T of cross-bar H, or with the point E, the former being its normal condition.
The operation of the invention is as follows: The thermostat is suspended from the ceiling of the building in a suitable manner by the connection of the wire with each binding-post. Situated in convenient position in the building is the house-box, shunt-coil, and opencurrent battery. In case of fire or other excessive heat the disk F expands, leaving the lower contact-point S. This causes the current passing from the main battery 1, through main relay 2, to and from house-box 3 to bindingpost K, and the circuit being broken passes through the wire 4 to shunt-coil 5, energizing the same and attracting the armature 6, which completes the open circuit. The trip-coils 7, being thus energized through wire 8, attracts the armature 9, raising the trip-arm l0 and allowing the revolution of the circuit-wheel 11, provided with suitable projections on its periphery, signifying the location of the box, the current returning to the main battery by way of the house-box and main relay, and thus notifying the central office, as will be readily understood. Immediately the disk expands sufficiently to come into contact wit-h upper contact-point E the circuit is completed,the current passing from the bindingpost K, through conducting-strip N to casting 0, through upper point E to expansion-disk F, thence through bolt G, conducting-strap Q, binding-post K, and main wire to main battery. As soon as the current is completed in the manner described the current ceases to pass through wire 4 and energize the shunt-coils 5, and the armature 6 therefore resumes its normal position and the open circuit is broken. \Vhen the armature 6 resumes its normal position, the armature 9 and trip-arm 10, descending, prevent the revolution of the circuit-wheel, as will be readily understood.
Having thus fully described my invention, what I claim as new, and desire to secu e by Letters Patent, is
1. In a thermostatic circuit-controlling device, the combination of an insulating-block having a recessed under surface, a disk sensitive to variations of temperature con- .tained in the said recess, two bindingscrews on the said base, a cross-bar below the said disk, having a contact-point thereon normally in contact with the said disk and connected with one of the said binding-posts,,and a metallic casting in the said block, having a contact-point projecting from its base within the said recess and connected with the said binding-screw, the said disk being connected'with the opposite bindingpost, as described.
2. In a thermostatic circuit-controlling device, the combination of an insulating baseblock having a recessed under surface, a disk sensitive to variations in temperature within the said recess, a bolt passing through the said disk and the base-block, a binding-post upon the said block, and a strip connecting the said bolt and binding-post, a cross-bar spanning the said recess below the said disk and having a contact-point in its upper surface normally in contact therewith, a screw passing through one end of the said bar and insulated therefrom and extending into the said binding-post, a casting within the said block, having a contact-post projecting from its bottom over the said disk,a screw passing through the other end of the said bar and through the block,and abinding-point mounted thereon and connected with the said easting, as described.
In testimony whereof Iat'fix my signature in presence of two witnesses.
ADOLPH M. BARRON. Witnesses:
I]. O. JOHNSON, L. J. HIGDON.
Publications (1)
Publication Number | Publication Date |
---|---|
US446846A true US446846A (en) | 1891-02-24 |
Family
ID=2515735
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US446846D Expired - Lifetime US446846A (en) | Thermostat |
Country Status (1)
Country | Link |
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US (1) | US446846A (en) |
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0
- US US446846D patent/US446846A/en not_active Expired - Lifetime
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