US496893A - Automatic operator for drawbridge-gates - Google Patents

Automatic operator for drawbridge-gates Download PDF

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US496893A
US496893A US496893DA US496893A US 496893 A US496893 A US 496893A US 496893D A US496893D A US 496893DA US 496893 A US496893 A US 496893A
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drawbridge
gates
gate
automatic operator
operator
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions

Definitions

  • Patented May 9, 1893.
  • the object of this invention is to open and close the gate connected with a drawbridge without the services of an attendant.
  • Figure 1 is a perspective View,showinga gate on the land, at the'brink of the draw, and the devices engaged which operate the gate when the bridge is moving to open or close the draw.
  • These devices consist of a finger or bar secured to the bridge and a pivoted latch which I term the operator attached to the gate, the said finger being the instrument bywhich the latch is actuated and the gate opened and closed.
  • the finger A secured to the bridge in combination with the latch B pivoted on the free end of the gate, the connecting bar'C and the wheels W W, substantially as set forth.

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  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
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Description

(No Model.)
' .R.L.P'ADD-OGK.
AUTOMATIC OPERATOR FOR DRAWBRID GE GATES. I I
Patented" May 9, 1893.
WITNESSES:
UNITED STATES PATENT OFFICE.
RALPH LATHROP PADDOCK, OF PHILADELPHIA, PENNSYLVANIA.
AUTOMATIC OPERATOR FOR DRAWBRIDGE-GATES.
SPECIFICATION forming part of Letters Patent No. 496,893, dated May 9, 1893.
Application filed February 25, 1893. Serial No. 463.768- (No model.)
To all whom it may concern.-
Be it known that I, RALPH LATHROP PAD- DOOK, of the city and county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Automatic Operators for Drawbridge-Gates, of which the following, taken in connection with the accompanying drawings, is a specification.
The object of this invention is to open and close the gate connected with a drawbridge without the services of an attendant.
In the drawings, Figure 1 is a perspective View,showinga gate on the land, at the'brink of the draw, and the devices engaged which operate the gate when the bridge is moving to open or close the draw. These devices consist of a finger or bar secured to the bridge and a pivoted latch which I term the operator attached to the gate, the said finger being the instrument bywhich the latch is actuated and the gate opened and closed. Fig.
in the operator, and carries the gate back from whence it started. By this means thegate is securely locked.
I claim as my invention-- 1. In a draw-bridge gate, the finger A secured to the bridge, in combination with the latch B pivoted on the free end of the gate, the connecting bar'C and the wheels W W, substantially as set forth.
2. The latch B pivoted on the gate, the connecting bar C jointed to the latch and to the cross-bar c, and the supporting wheelsW W in combination with the finger A on the bridge, and the track T and offset '1" and T substantially as set forth.
In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on this'22d day of February, A. D. 1893.
RALPH LA'lI-IROP PADDOCK.
Witnesses:
LIZZIE OoWLING, J. B. KRAUSER.
US496893D Automatic operator for drawbridge-gates Expired - Lifetime US496893A (en)

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