US618804A

US618804A - Street-lamp

Info

Publication number: US618804A
Authority: US
Publication date: 1899-01-31
Anticipated expiration: 1916-01-31

Description

(No Model.)

- Patented Ian. 3|, I899. D. .J.. PRENDEBGAST. v

STREET LAMP.

(Application filed Aug. 1, 1898.)

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ilnrrnn STATES PATENT -FFICE.

DANIEL J. PRENDERGAST, OF NEW YORK, N. Y., ASSIGNOR TO THE PENNSYLVANIA GLOBE GAS LIGHT COMPANY, OF PHILADELPHIA,

PENNSYLVANIA.

STREET-LAM P.

SPECIFICATION forming part of Letters Patent No. 618,804, dated January 31, 1899.

Application filed August 1, 1898. Serial No. 687,472. (No model.)

To all whom it may concern.-

Be it known that I, DANIEL J. PRENDER- GAST, a citizen of the United States, residing in the city of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Street-Lamps, of which the following is a specification.

The objects of the present invention are to provide a protector for covering and shielding a mantle or other incandescent and for permitting of the uncovering or exposure of the same in such manner that when the mantle is uncovered there are no obstructions such as would interfere with the diffusion of light or tend to cast shadows.

My invention consists of the improvements hereinafter described and claimed.

The nature, characteristic features, and scope of the invention will be more fully understood from the following description,taken in connection with the accompanying drawing forming part hereof, and in which is illustrated, partly in section and partly in elevation, a street-lamp embodying features of my invention.

In the drawing 1 is a WVelsbach or other incandescent burner mounted in a lantern 2, which may be of any appropriate size and shape.

3 is a protector which is used to cover the mantle 4;, as shown in the drawing, and thereby protected from accidental breakage due to wind when the lantern is opened or due to carelessness on the part of any one engaged in cleaning, adjusting, or otherwise working in the lantern. One protector is shown in the drawing, although several of them may be mounted side by side and connected together in cases where several mantles or incandescents 4 are employed.

5 are arms, rods, or hangers which carry the protector 3. As shown, these arms, rods, or hangers penetrate openings in brackets projecting laterally from the protector and are held to place by means of set-screws 6. These set-screws afford means for adjusting the protector in respect to the rods and normally serve to immovably connect the rods and protector.

7 are guides through which the arms, rods, or hangers are afiorded freedom of motion, so that when the protector is raised the rods, arms, or hangers travel upward through the guides. As shown, the guides 7 are carried by 'a deflector S, which is frequently provided in street-lanterns. However, they might be carried in any preferred manner so long as room is provided above them for the rods or arms.

9 are guides or sockets adapted to receive the lower ends of the arms, rods, or hangers 5 when the protector is in depressed position, and thus support the protector against such sidewise displacement as might result in injury to the mantle and as could be produced by accidentally striking the protector or parts connected therewith in the operation of cleaning the lantern. These guides or sockets 9 may be carried by arms 10, projecting later ally from the burner. 9 are adapted to arrest downward motion of the rods or hangers 5. provided with stops 11, which operate to accomplish this purpose. The nuts-12 afford means for adjusting the sockets or guides 9 vertically. The set-screw 11 may be employed As shown, they are,

The sockets or guides to engage one of the arms 5 in order to prevent accidental motion of the protector when the lantern is being shipped or mounted in place.

13 is a spring-catch adapted to retain the protector and connected parts in elevated position and to be caused to disengage the protector so as to permit of its descent into the position shown in the drawings.

In use the protector is pushed upward and carries with it the arms, rods, or hangers 5, which work through the guides 7 until finally the catch 13 engages one of the brackets of the protector and holds it in elevated position. This movement may be readily accomplished from the sidewalk by means of a torch or suitable lighting-stick, which can be inserted through the door 14 and then used to push up the protector and its complemental arms. During this motion of the protector the guides 7 serve to direct its motion. When the protector has been thus elevated, the mantle or incandescent 4 is unobstructed because the rods, arms, or hangers 5 do not extend below or opposite to it. In this position the protector 3 serves to convey products of combustion from the mantle or incandescent through a suitable opening in the deflector 8. This result is promoted by the outwardly-flaring or funnel-shaped ends a of the protector. WVhen the light is extinguished or When it becomes desirable for any reason to cover the mantle, the protector is lowered into the position shown in the drawing. In this operation the lower ends of the rods, arms, or hangers 5 are seated in the guides or sockets 9, which not only arrest their motion but also hold them against accidental sidewise displacement. The attendant in charge may readily lower the protector by inserting his stick or torch through the door 14:, as before, and causing it to release the spring-catch 13, whereupon the protector and its arms and connected parts will descend under the influence of gravity until arrested by the sockets 9 in the position shown in the drawing.

It will be obvious to those skilled in the art to which my invention appertains that modications may be made in details without departing from the spirit thereof. Hence I do not limit myself to the precise construction and arrangement of parts hereinabove set forth and illustrated in the accompanying drawing; but,

Having thus described the nature and objects of my invention, What I claim as new, and desire to secure by Letters Patent, is

1. The combination with a I'Velsbach or other incandescent street-light, of, arms, rods or hangers carrying a protector adapted to cover and uncover the mantle or incandescent, and guides for permitting said arms to slide into the upper portion of the lantern whereby they may not obscure the light when the mantle is uncovered, substantially as described.

2. In combination a street-lantern, a mantle or incandescent and its accessories, a protector for covering and uncovering the mantle, and means depending from the upper portion of the lantern and constructed to permit of raising and lowering of the protector, substantially as described.

3. In combination a lantern provided with a deflector, a Welsbach or other incandescent light mounted in the lantern, rods movable through the deflector and provided with a protector, and guides carried by the deflector and light and adapted to said rods, substantially as described.

4.. In combination a lantern provided with a VVelsbach or other incandescent light, a protector adapted to cover and uncover the mantle or incandescent of the light, rods connected with the protector and afforded movement above the mantle and connected with the protector, and a spring-catch for holding the protector and its connected parts in elevated po- 'sition, substantially as described.

In testimony whereof I have hereunto signed my name.

DANL. J. PRENDERGAST.

In presence of CHAS. R. LINDSAY, J12, W. WALTER.