US284878A - Assig - Google Patents
Assig Download PDFInfo
- Publication number
- US284878A US284878A US284878DA US284878A US 284878 A US284878 A US 284878A US 284878D A US284878D A US 284878DA US 284878 A US284878 A US 284878A
- Authority
- US
- United States
- Prior art keywords
- core
- armatures
- plate
- shaft
- rock
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 229910001369 Brass Inorganic materials 0.000 description 8
- 239000010951 brass Substances 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 6
- 238000010276 construction Methods 0.000 description 2
- 230000005292 diamagnetic Effects 0.000 description 2
- 239000002889 diamagnetic material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/484—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring electrolyte level, electrolyte density or electrolyte conductivity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- bamllllllvtgs%w A VZVLVEZZTOH CVVL a ma A ffo rne y UNITED STATES PATENT OFF CE.
- DAVID A.. MCCORMICK OF DETROIT
- MICHIGAN MICHIGAN
- ASSIGNOR OF ONE-HALF TO LEWVIS MANN OF SAME PLACE.
- My invention consists in an improved mode of construction, hereinafter pointed out.
- G represents a piece of diamagnetic substance, (brass) fastened to core C by screw H.
- L represents a brass plate, secured to plate A by screws N N in oblique slots M M, and serves both to limit the motion of armatures J and to raise them to the position shown in Fig. 1.
- Well-known device. XVhen the armatures J are in the position shown in Fig. 1, if the electromagnet is excited by passing an electric current through wires D E, core C C attracts the armatures, they approach the core until 5 they pass a vertical position, and then fall or swing until checked by plate L, as shown at J, Fig. 2, thus partially rotating rock-shaft I and moving the pointer.
- crank P It is operated by crank P, and is a 0
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Electromagnets (AREA)
- Hard Magnetic Materials (AREA)
- Paper (AREA)
Description
(No Model) Q D. A. MOGORMIGK.
I ELECTRICAL ANNUNOIATOR. No. 284,878. Patented Sept. 11, 1883.
bamllllllvtgs%w A VZVLVEZZTOH CVVL a ma A ffo rne y UNITED STATES PATENT OFF CE.
DAVID A.. MCCORMICK, OF DETROIT, MICHIGAN, ASSIGNOR OF ONE-HALF TO LEWVIS MANN, OF SAME PLACE.
ELECTRICAL ANNUNCIATOR.
SPECIFICATION forming part of Letters Patent No. 284,878, dated September 11,1883,
Application filed May 22, 1883. (No model.)
[0 all whom, it may concern Be it known that I, DAVID A. MoCoRMroK, of Detroit, in the county of Wayne and State of Michigan, have invented a new and useful Iniprovement in Electrical Annun ciators, ofWhich the following is a specification.
.Figure 1 is an isometrical perspective, and Fig. 2 is an elevation.
My invention consists in an improved mode of construction, hereinafter pointed out.
A represents a portion of the front plate of an electrical annunciator, made of diamagnetic material.
13 represents an electro-magnet, Whose core C C projects beyond thehelix at both ends, and one end of which, C, is fastened to plate A.
G represents a piece of diamagnetic substance, (brass) fastened to core C by screw H.
D E represent Wires connected to the electro-mag'net.
I represents an iron rock-shaft, journaled in brass piece G and plate A a little to one side of a vertical plane passing through the center of core C C, passing through plate A, and carrying on its outer end a pointer.
J J represent two iron armatures, secured to rock-shaft I, and so placed that when shaft I is rocked the ends of armatures J J will pass close to the extended core C C, but without touching it.
K represents a stop fixed in plate A, against which one armature J 'will strike and rest. Said armatures are placed in a position nearly vertical, as shown in Fig. l.
L represents a brass plate, secured to plate A by screws N N in oblique slots M M, and serves both to limit the motion of armatures J and to raise them to the position shown in Fig. 1. Well-known device. XVhen the armatures J are in the position shown in Fig. 1, if the electromagnet is excited by passing an electric current through wires D E, core C C attracts the armatures, they approach the core until 5 they pass a vertical position, and then fall or swing until checked by plate L, as shown at J, Fig. 2, thus partially rotating rock-shaft I and moving the pointer.
What I claim as my invention, and desire to secure by Letters Patent, is
1. In an electrical annunciator, an electromagnet whose core is extended beyond both ends of the helix, in combination with an iron rock-shaft journaled outside the vertical plane passing through the axis of the core, and carrying a pointer, and having thereon two armatures so placed that each end of the core ofthe electro-niagnet will attract one of said armatures, substantially as shown and described.
2. The combination of the electro-magnet B, having core C C, plate A, brass piece G, rock-shaft I, armatures J J, and stop K, sub stantially as shown and described.
DAVID A. MCCORMICK.
Witnesses CYRUs E. LOTHROP, GEO. H. \LOTHROP.
It is operated by crank P, and is a 0
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US284878A true US284878A (en) | 1883-09-11 |
Family
ID=2354080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US284878D Expired - Lifetime US284878A (en) | Assig |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US284878A (en) |
-
0
- US US284878D patent/US284878A/en not_active Expired - Lifetime
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