US791228A - Electric railway signal or alarm. - Google Patents

Electric railway signal or alarm. Download PDF

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Publication number
US791228A
US791228A US22315404A US1904223154A US791228A US 791228 A US791228 A US 791228A US 22315404 A US22315404 A US 22315404A US 1904223154 A US1904223154 A US 1904223154A US 791228 A US791228 A US 791228A
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United States
Prior art keywords
alarm
electric railway
railway signal
train
indicating
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US22315404A
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Earl L Tatum
James W Tatum
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
    • B61L25/02Indicating or recording positions or identities of vehicles or trains
    • B61L25/025Absolute localisation, e.g. providing geodetic coordinates

Definitions

  • This invention has relation to electrical indicators for train or car service generally; but
  • Figure l is an ea; larged view of an ndicating-board equipped v with the various devices or showing their arrangement relatively to each other andto the entire plan of the invention.
  • the line 11 is the main line orliwire which taps to the indicating-board 12 and its equipments in stat-ions.
  • the line 11 connects with the battery 13, and the instruments on the indicating- Fig. 2 is a diagram showing two cars of a line or system.
  • the power board, 14:" is an ohmmeter, indicating by a pointer on a dial the number of miles-(the ohms having been'reduced to miles) distant of the nearest car or train or the station, as the case may be.
  • the said ohmmeter 1s connected in series with ground-wire 15 through switch 16, which switch can be used for cut-- ting out of said instrument.
  • 17 1s a telephone which can be used for com munlcatlon between two moving trains or from train to train into astation, or vice versa,
  • switch19 which switch can be used for cuttingout the telephone, if need be.
  • 2Q indicates the trouble or signal bell whose winding enables it to ring at a certain electric pressure', which can beset forany number of miles, according to the strength of the battery or size and resistance of the trolleywire used, which .bell is connected in series with signaling-key 21, which latter is used in signaling from one movingtrainto another or to the engine from the train, or from any point to the station, or vice versa, as the case may be, which signal-key is connected in se- 24 designates the point where the ground.-
  • Wire 15 is connected or grounded to the rail; It is to be noted that our invention is very simple in construction and arrangement and is capable ofbeing employed to look after and care for the ordinary affairs of,a road and its equipments and that by nothing beyond the exercis'eof the 'slgill'of'the'artisan understanding the i-nvention'iit is capable of being amplified and greatly extended in the amount or scope. of service thatsit is capable of performing. u
  • an indicating-board equipped. with an ohmmeter provided with auindicator u pon which the ohms aregnaduated-intoor reduced to nliles a telephone, and a keysignalinginstrumentg all connectedin'muitiplewith each other and in series with a battery, and each previdednwith'ua sw'itclwby which it may he cutout,,- one such board being provided for each car or train in-operationin'a system and one for each statiom-the'entirefnumber being electricallyicomhined or connected one with another, as set forth.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Time Recorders, Dirve Recorders, Access Control (AREA)

Description

"No. 791,228. PATENTED MAY 30, 1905- B. L. & J. w, TATUM. ELECTRIC RAILWAY SIGNAL 0R ALARM.
APPLICATION FILED SEPT. 2, 1904.
2 SHEETSSHEBT l.
aww aw.
L. & J. W. TATUM'.
ELECTRIC ilAILWAY SIGNAL 'OR. ALARM.-
' witnesses: v
APPLIUATION ITLED SEPT; 2, 1 904.
'PATENTED MAY so, 1905'.
'ZSHEETEFSHEET 2.
- ing at WVashington, Districtof Columbia, and JAMES W. TATUM, residing at Durham, in the UNITED STATES Patented 110,730, 1905.
PATENT OFFI Y ARL 'ra'ruinor WASHINGTON," DISTRICT OF COLUMBIA, -AN D. JAMES wLmarum, or DURHAM,,NORTH CAROLINA, ASSIGNORS or ONE-HALF TO nosnnr B. BOONE AND JOHN W. SMITH, or
DURHAM, NORTH CAROLINA;
,ELECTRIC SRAILWAY SIGNAL on ALARM.
' srnerrrcnrxow forming part of Letters Patent No.791,228,dated May 80,1905.
I ApplicationfiledSeritexhherZ,1.904;. Serial a. 223,154..
Toall whom itima/y concerns Beit known that we, EARL L. TATUM, residcounty of Durham and State of North Carolina, have invented new and useful Improvewell as between moving and stationary trains. The invention consists 1n novel arrange-r ments inElectrical Railway Signals or Alarms;
and we do hereby declare the followingto be a fulhclear, and exact description of the same,
reference being bad to the accompanying drawings, forming a part thereof.-
This invention has relation to electrical indicators for train or car service generally; but
in its present design it is particularly'adapted for use on trains or cars and in stations to indicate location of cars or trains and difiicul-- .ties encountered and toaifordmeans of communication between trains and stations, as
ments and combinations of devices whereby a simple and useful indicator of the charac- In the said drawings, Figure l is an ea; larged view of an ndicating-board equipped v with the various devices or showing their arrangement relatively to each other andto the entire plan of the invention.
as provided with the indicating-board and its equipmentsatud illustrating its mode of use.
In the drawings, may designate themain trolley-wire, which in this case ismade the teries.
11 is the main line orliwire which taps to the indicating-board 12 and its equipments in stat-ions. The line 11 connects with the battery 13, and the instruments on the indicating- Fig. 2 is a diagram showing two cars of a line or system.
conveyer of the inain current from the bat board, '12 connect, through the line 14, at the said battery 13. I
, It will bG-UHdBISlJOOd that the drawings are to a large extent merely diagrammatic by rea son of necessity. It should be stated, there-.
fore, at the outset that our invention is not intended for use in connection with electric:
cars, but rather with steam-engines, and the wire that the trolley-pole is connected with by wheel. is nothing more than a telegraphwire, and all the 'power that will. be onthe said wire will be furnished fromthe dry batteries on the engine in the cab.
that they will have will be by the way the said batteries are made, and they will be gov- The power board, 14:" is an ohmmeter, indicating by a pointer on a dial the number of miles-(the ohms having been'reduced to miles) distant of the nearest car or train or the station, as the case may be. The said ohmmeter 1s connected in series with ground-wire 15 through switch 16, which switch can be used for cut-- ting out of said instrument. 17 1s a telephone which can be used for com munlcatlon between two moving trains or from train to train into astation, or vice versa,
as the case may be,which'telephone is connected in series with ground wire 18 15 through switch19, which switch can be used for cuttingout the telephone, if need be.
2Q indicates the trouble or signal bell whose winding enables it to ring at a certain electric pressure', which can beset forany number of miles, according to the strength of the battery or size and resistance of the trolleywire used, which .bell is connected in series with signaling-key 21, which latter is used in signaling from one movingtrainto another or to the engine from the train, or from any point to the station, or vice versa, as the case may be, which signal-key is connected in se- 24 designates the point where the ground.-
Wire 15 is connected or grounded to the rail; It is to be noted that our invention is very simple in construction and arrangement and is capable ofbeing employed to look after and care for the ordinary affairs of,a road and its equipments and that by nothing beyond the exercis'eof the 'slgill'of'the'artisan understanding the i-nvention'iit is capable of being amplified and greatly extended in the amount or scope. of service thatsit is capable of performing. u
It 'will ice clearly understood =that1 each stja tion and each train or'carin service of a 1' road or systemwvilli lbe equipped with 'an indicatingeboard-and bythat termmeaningthe instrirmentalities thereonso thateny author fon'whioh they are designedgat a'ny timeforinformation and helpinconducting-a mil-ways;
system- 01 in running a numbenor' linemfcars; ashG-mightlookto a clock on the train-or at 'a station-toaascertain the1time=ofday.
We'claim 1. An indicating-board equipped-with: an
' ohrnm'eter provided withanuindicatoaupon: which thie'ohms' ane'gnaduated "into-miles ia telephone, and a key signaling instrument,
all connected-in multiple 'witheach other and in series with a battery; and each provided with a switch by which it'may be cut out, substantially as herein set forth.
I 2. In a system for the care of railway cars or trains, an indicating-board equipped. with an ohmmeter :provided with auindicator u pon which the ohms aregnaduated-intoor reduced to nliles a telephone, and a keysignalinginstrumentg all connectedin'muitiplewith each other and in series with a battery, and each previdednwith'ua sw'itclwby which it may he cutout,,- one such board being provided for each car or train in-operationin'a system and one for each statiom-the'entirefnumber being electricallyicomhined or connected one with another, as set forth.
3. In an electrical-signaling:device 'ofithe character described, 7 .ani r1 indicating --bom'd equippe with. an electrical distauce-ihdioatx l ng instrument,sand an eleotrical signal transr 'mitting ,instrumenh- -S2jdninStIltmDnt8 being connected =inmultiplowith; each otherand in I series wi th-a battery, and1each pmuided-witlt lzed employeermayiuse-them for "the purposes a switch lay-which it may beVcutoua-substanm tiallyqastdescribed.
In? estimony whereofweafiiaousignaturesin presence ofiltwo witnesses.
' EARL LJTATUM: n
J AMES W. TA'TIPUM! Witnesses:
Aneusr Pmuzasom. BENNE'BT Sr-Joimsa,
US22315404A 1904-09-02 1904-09-02 Electric railway signal or alarm. Expired - Lifetime US791228A (en)

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US22315404A US791228A (en) 1904-09-02 1904-09-02 Electric railway signal or alarm.

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE756073C (en) * 1942-03-13 1951-08-02 Windhoff Rheiner Maschf Device to avoid collisions between vehicles running on the same lane
US3484687A (en) * 1967-03-09 1969-12-16 Gen Electric Distance sensing system for railroads based on track inductance characteristics
US6243910B1 (en) * 1998-02-04 2001-06-12 Gunter Diehl Apparatus for cleaning the tubular frames of scaffolding

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE756073C (en) * 1942-03-13 1951-08-02 Windhoff Rheiner Maschf Device to avoid collisions between vehicles running on the same lane
US3484687A (en) * 1967-03-09 1969-12-16 Gen Electric Distance sensing system for railroads based on track inductance characteristics
US6243910B1 (en) * 1998-02-04 2001-06-12 Gunter Diehl Apparatus for cleaning the tubular frames of scaffolding

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