US38529A - Improvement in calls for telegraphs - Google Patents
Improvement in calls for telegraphs Download PDFInfo
- Publication number
- US38529A US38529A US38529DA US38529A US 38529 A US38529 A US 38529A US 38529D A US38529D A US 38529DA US 38529 A US38529 A US 38529A
- Authority
- US
- United States
- Prior art keywords
- call
- calls
- improvement
- telegraphs
- reels
- 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
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- 239000004020 conductor Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 102000007469 Actins Human genes 0.000 description 2
- 108010085238 Actins Proteins 0.000 description 2
- 240000002027 Ficus elastica Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 229920001195 polyisoprene Polymers 0.000 description 2
Images
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/14—Protection against unauthorised use of memory or access to memory
- G06F12/1408—Protection against unauthorised use of memory or access to memory by using cryptography
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
- G06Q20/34—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using cards, e.g. integrated circuit [IC] cards or magnetic cards
- G06Q20/341—Active cards, i.e. cards including their own processing means, e.g. including an IC or chip
Definitions
- FIG. 1 is atop view of theimproved call
- Fig.2 is a central vertical section of the same.
- A is a wooden stand having secured to it, one above another at a short distance apart, by pillars (J 0, two oblong reels or frames, '13
- E is a permanent steel-bar magnet, secured at the middle of its length on a horizontal axle, a, which is arranged to oscillate freely in bearings provided for it in two fixed pillars, F F, secured to the stand A on opposite sides of the reels B B, the said magnet being situate. within the reels and the said axle-between the two reels.
- Attached to thepermanent magnet E is a weight, 0, composed-of a piece of wire, which is bent to a-position to compensate for-the dip of the magnet and balance it in a horizontal position when not influenced by currents of electricity passing through the coils of wire on the reels.
- G is a glass disk secured above the reels by a screw, 0, passing through its center to 'a cross-bar, H, which is arranged across the upper reel, and whose ends are secured on the tops of-the pillars F F.
- I I are the terminal screws for connecting the ends of the telegraph-conductor to the instrument. Two of the ends of thc reel-wires are secured together, and the other ends are secured to the terminal screwsI I, one to each screw.'
- the permanent magnet E is placed in the same position as what is known as a dippingneedle -that is to say, the axle and the magnet are both in the same horizontal plane -so that when the needle IS deflected by the e ectric current passi g through the coils of wire on'thereels, but the duration 'of such currents and the intervals between them beingvery short; the magnet cannot complete it range of motion, partly on account of the influence of the magnetism of V the coils extending over a much greater ran ge than that'of an ordinary electro-maguet, such as is ordinarily used for telegraphic purposes,
- This call is to he so arranged in the office or station in relation to the receiving-instru- 1nent, and with a brake so applied in connection with the two, that when the receiving-instrurnent is not desired to be in operation the latter may be shut off the circuit, the call being .in the meantime allowed to remain in'circnit.
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Engineering & Computer Science (AREA)
- Accounting & Taxation (AREA)
- Strategic Management (AREA)
- General Business, Economics & Management (AREA)
- Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
Description
Al Electrical-Relay Instrument.
Patented May '12, 1863.
Wa ZvI/as-sa-F I 4 MM UNITED, STATES ALEXANDER BAIN, or new P TENT? OFFICE.
ron n. Y, ASSIGNOR 'ro WM. H. Atrium-or SAME PLACE. i
IMPROVEMENT in CALLS, FOR' ,TELEG RAPHS.
Specification forming part of Letters Patent No. 38.529, dated May 12, 1863; antedated December 11, 1862.
Figure 1 is atop view of theimproved call,
which I term the f silentmessage call. Fig.2 is a central vertical section of the same.
Similar letters of reference indicate corresponding parts in both figures.
The custom now generally adopted in this country infelectric telegraphy of reading -intelligence by the sounds emitted by the instruments in their operation has rendered it difficult, if not impracticable, withthe instruments at present in common use, to transmit intelli:
gence with any degree of secrecy, for the instruments in all other offices or stations on a line of telegraph besides that to which the intelligence is to be transmitted, operating in unison with the instrument or instruments at that station, produce the same sounds, which may be heard by other persons than the confidential operator who may be familiar with the telegraphic alphabet and near the instrument or instruments. ure obviated this difliculty by means of the receiving-instrument which constitutes the subject-matter of Letters 'PatentNo. 1,850, dated July 23, 1861', but it is essentially necessary that the several offices or stations on a line should have means of communicating with each other by sounds .aud-ible at some considerable distance from the instruments, so that the operator at one office or station may draw the attention of him at any other which it may he wished to communicate with; and to this ,en'dthis invention consists inau instrument which, I term the silent message call, from which, though it is capable of callingthe attention of the operator, messages cannot be read, because the electric pulsations produced inthem-transmission are too frequent for its action, but'which, when the pulsations are less frequent, will actin accordance with them, and
I have in a great meas thereby produce sounds sullicientlyloud to be heard at a distance greater or-less, according to the strength of the electric currents, and
which sounds will then be intelligible and are intended to be used to call from one office or station to another.
To enable others skilled in the art to make and use myinvention, Iwillprocecd to describe its construction and operation.
A is a wooden stand having secured to it, one above another at a short distance apart, by pillars (J 0, two oblong reels or frames, '13
B, which are made of hard india-rubber or othe suitable non-conducting material covered or filledwith coils of fine copper wire covered with silk, and which resemble those commonly used in galvanometers.
E is a permanent steel-bar magnet, secured at the middle of its length on a horizontal axle, a, which is arranged to oscillate freely in bearings provided for it in two fixed pillars, F F, secured to the stand A on opposite sides of the reels B B, the said magnet being situate. within the reels and the said axle-between the two reels.
Attached to thepermanent magnet E is a weight, 0, composed-of a piece of wire, which is bent to a-position to compensate for-the dip of the magnet and balance it in a horizontal position when not influenced by currents of electricity passing through the coils of wire on the reels.
G is a glass disk secured above the reels by a screw, 0, passing through its center to 'a cross-bar, H, which is arranged across the upper reel, and whose ends are secured on the tops of-the pillars F F.
I I are the terminal screws for connecting the ends of the telegraph-conductor to the instrument. Two of the ends of thc reel-wires are secured together, and the other ends are secured to the terminal screwsI I, one to each screw.'
It will be observed that the permanent magnet E is placed in the same position as what is known as a dippingneedle -that is to say, the axle and the magnet are both in the same horizontal plane -so that when the needle IS deflected by the e ectric current passi g through the coils of wire on'thereels, but the duration 'of such currents and the intervals between them beingvery short; the magnet cannot complete it range of motion, partly on account of the influence of the magnetism of V the coils extending over a much greater ran ge than that'of an ordinary electro-maguet, such as is ordinarily used for telegraphic purposes,
whose chief magnetic power is at or close to the poles. Therefore the instrument, though it serves well enough as a call, will not make known any of the ordinary telegraphic coinmunications. i
This call is to he so arranged in the office or station in relation to the receiving-instru- 1nent, and with a brake so applied in connection with the two, that when the receiving-instrurnent is not desired to be in operation the latter may be shut off the circuit, the call being .in the meantime allowed to remain in'circnit.
What i claim as myinvention, and desire to secure by Letters Patent, is-
-' The call composed of the-reels of wire B B,
the permanent magnet E, and the glass disk G,
or its equivalent; the whole combined, applied,
and arranger] to operate'substantially as and for the purpose herein specified;
t ALEXANDER BAIN. Witnesses: I
4 R. GAWLEY, 7
JAMES LAIRD.
Publications (1)
Publication Number | Publication Date |
---|---|
US38529A true US38529A (en) | 1863-05-12 |
Family
ID=2108100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US38529D Expired - Lifetime US38529A (en) | Improvement in calls for telegraphs |
Country Status (1)
Country | Link |
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US (1) | US38529A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050162649A1 (en) * | 2004-01-23 | 2005-07-28 | P&P Optica Inc. | Multi-channel spectrum analyzer |
US20080031451A1 (en) * | 2005-11-14 | 2008-02-07 | Jean-Francois Poirier | Method and system for security of data transmissions |
-
0
- US US38529D patent/US38529A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050162649A1 (en) * | 2004-01-23 | 2005-07-28 | P&P Optica Inc. | Multi-channel spectrum analyzer |
US20080031451A1 (en) * | 2005-11-14 | 2008-02-07 | Jean-Francois Poirier | Method and system for security of data transmissions |
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