US985167A - Signal-blade. - Google Patents

Signal-blade. Download PDF

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Publication number
US985167A
US985167A US55718210A US1910557182A US985167A US 985167 A US985167 A US 985167A US 55718210 A US55718210 A US 55718210A US 1910557182 A US1910557182 A US 1910557182A US 985167 A US985167 A US 985167A
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US
United States
Prior art keywords
blade
signal
edging
pennsylvania
rubber
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
Application number
US55718210A
Inventor
Marquis D Hanlon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Rail STS USA Inc
Original Assignee
Union Switch and Signal Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Union Switch and Signal Inc filed Critical Union Switch and Signal Inc
Priority to US55718210A priority Critical patent/US985167A/en
Application granted granted Critical
Publication of US985167A publication Critical patent/US985167A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/12—Visible signals
    • B61L5/14—Form signals, e.g. semaphore arms

Definitions

  • Patented net. as, 1911.
  • My invention relates to blades for railway signals. It is particularly adapted for use with what is known in the art as dwarf signals, but it may be utilized in connection with any signal in which a signal blade is used.
  • My invention has for an object a blade which is made of flexible metal, the edges of which are covered by rubber or other similar protective material to prevent injury to workmen and others who might come into contact with the blade.
  • Figure l is a view showing a side elevation of a signal blade embodying my invention.
  • Fig. 2 is a transverse sectional view taken on the line 22 of Fig. 1 looking in the direction of the arrows.
  • the blade is made of a piece of flexible metal 8, preferably of spring steel, and a rubber edging 4 therefor, the purpose of which edging is the protection of persons from being injured by coming into contact with the blade, as might occur if the edges of the metallic blade were not in some way protected.
  • the flexible metal piece 3 is adapted to be secured to a semaphore signal casting in the usual manner by the provision of bolt holes 5.
  • the edging 4 may be secured to the flexiblemetallic piece 3 by molding.
  • the metallic piece is provided with holes or perforations 6 and is placed in a mold. The rubber or other protective substance is then poured into the mold in a molten condition to form the edging.
  • a signal blade comprising a sheet of flexible metal having an uncovered end portion for connection with a semaphore signal casting, and an edging of rubber secured to the sheet of metal and covering such edge portions as are not protected by the semaphore casting.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Description

M. D.HANLON.
SIGNAL BLADE. APPLICATION FILED APB'ZB, 1910.
Patented Feb. 28, 1911.
at?? J I NTOR .44 ATTORNEY UNITED STATES PATENT oEEroE.
MARQUIS D. HANLON, 0F VVILKINSBURG, PENNSYLVANIA, ASSIGNOR TO THE UNION SWITCH & SIGNAL COMPANY, OF SWISSVALE, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.
SIGNAL-BLADE.
Specification of Letters Patent.
Patented net. as, 1911.
T 0 all whom it may concern:
Be it known that I, MARQUIS D. HANLON, a citizen of the United States, and a resident of the borough of .Vilkinsburg, county of Allegheny, State of Pennsylvania, have invented certain new and useful Improvements in Signal-Blades, of which the following is a specification.
My invention relates to blades for railway signals. It is particularly adapted for use with what is known in the art as dwarf signals, but it may be utilized in connection with any signal in which a signal blade is used.
My invention has for an object a blade which is made of flexible metal, the edges of which are covered by rubber or other similar protective material to prevent injury to workmen and others who might come into contact with the blade.
I will describe a signal blade embodying my invention and then point out the novel features thereof in claim.
In the accompanying drawings, Figure l is a view showing a side elevation of a signal blade embodying my invention. Fig. 2 is a transverse sectional view taken on the line 22 of Fig. 1 looking in the direction of the arrows.
Similar reference characters refer to similar parts in each of the views.
Referring to the drawings, the blade is made of a piece of flexible metal 8, preferably of spring steel, and a rubber edging 4 therefor, the purpose of which edging is the protection of persons from being injured by coming into contact with the blade, as might occur if the edges of the metallic blade were not in some way protected. The flexible metal piece 3 is adapted to be secured to a semaphore signal casting in the usual manner by the provision of bolt holes 5. The edging 4 may be secured to the flexiblemetallic piece 3 by molding. For this purpose the metallic piece is provided with holes or perforations 6 and is placed in a mold. The rubber or other protective substance is then poured into the mold in a molten condition to form the edging.
Having thus described my invention, I claim:
A signal blade comprising a sheet of flexible metal having an uncovered end portion for connection with a semaphore signal casting, and an edging of rubber secured to the sheet of metal and covering such edge portions as are not protected by the semaphore casting.
In testimony whereof, I have signed my name to this specification, in the presence of two witnesses.
MARQUIS D. I-IANLON.
Witnesses:
JOHN D. TAYLOR, J. B. STRUBLE.
Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.
US55718210A 1910-04-23 1910-04-23 Signal-blade. Expired - Lifetime US985167A (en)

Priority Applications (1)

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US55718210A US985167A (en) 1910-04-23 1910-04-23 Signal-blade.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US55718210A US985167A (en) 1910-04-23 1910-04-23 Signal-blade.

Publications (1)

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US985167A true US985167A (en) 1911-02-28

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Family Applications (1)

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US55718210A Expired - Lifetime US985167A (en) 1910-04-23 1910-04-23 Signal-blade.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2575339A (en) * 1945-01-16 1951-11-20 James W Fitzgerald Rubber dome for underwater sound

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2575339A (en) * 1945-01-16 1951-11-20 James W Fitzgerald Rubber dome for underwater sound

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