US1154828A - Sleet-cutter for trolley-wires. - Google Patents

Description

W. H. AHRENS.

SLEET CUTTER FOR TROLLEY WIRES.

APPLICATION FILED MAY 3. 1915.

- 1,154,828. PatentedSept; 28, 1915.

abtozmqo Leo WILLIAM H. AHRENS, OF CANANDAIGUA, NEW YORK.

SLEET-CUTTER non TROLLEY-WIRES.

Specification of Letters Patent.

Patented Sept. 28, 1915.

Application filed May 3, 1915. Serial No. 25,524.

for Trolley-WVires; and I do declare the following to be a full, clear, and exact desoription of the invention, such as will enable others skilled in the art to which it appertains to make and usethe same.

This invention relates to improvements in sleet cutters for trolley wires.-

The object of the invention is to provide a simply constructed and efficient device of this character which will not damage overhead hangers, may be quickly attached, is self adjusting and operates no matter in what'direction the car may be running.

Another object is to construct a device of this character with a scraping member so fitted that in case of its being burned out, another may be quickly inserted without a whole new appliance being necessary. 7

With the above and other objects in view, the invention consists of certain novel features of construction, combination and arrangement of parts as will be hereinafter more fully described and claimed.

In the accompanying drawings: Figure 1 represents a side elevation of a trolley harp equipped with this improved cutter; Fig. 2 is a transverse section taken on the line 22 of Fig. 1; Fig. 3 is a vertical longitudinal section taken on the line 33 of Fig. 1; Fig. 4: is a transverse section taken. on the line M of Fig. 3; Fig. 5 is a'detail perspective View of the scraping element.

In the embodiment illustrated, a trolley pole P is shown provided with the usual harp H and trolley wheel WV.

The attachment constituting this invention is mounted on the harp H and comprises a bracket 1 composed of two clamping jaws 2 and 3 provided on their inner whereby the bracket is securely attached to the harp and extends laterally therefrom in a plane at right angles on the upper side of the harp to position the attachment in advance of the wheel W in convenient relation to the trolley wire W. The ends of the jaws opposite those which carry the lips at arev reduced in thickness and between the free ends thereof is pivotally mounted a head 6 which projects inwardly some distance beyond the ends of the arms and is adapted to-swing freely from one side to the other, being controlled in its swinging movement by cross bars 7 and 8 which connect the free ends of the jaws 2 and 3 on the edges thereof, see Figs. 1 and 2. This head 6 is shown provided with a reduced lower portion formed by cutting away one face thereof, said cut away portion having a shoulder 9 at its inner end, as shown in dotted-lines in Fig. 1, the reduced lower portion of the head providing for the swinging thereof between the bars 7 and 8 to a greater extent than could otherwise be accomplished if said head were not so reduced. Two laterally spaced arms 10 and 11 rise from the head 6 and are preferably curved on their inner faces, tapering in thickness toward their free ends and are so shaped as to form a rounded seat 12 conform-ing 1n shape to the shape of a scraping element 13 which is mounted between these arms as will be hereinafter more fully described. In the top of the head between the arms 10 and 11 is a socket 14 adapted to receive a stud 15 which depends from the lower end of the scraping member 13 and is adapted to be seated in said socket to assist in holding said member rigidly connected with the head.

The scraping member 13 which is substantially heart shaped as shown in Figs. 3 and 5, is preferably composed of copper and is provided on its opposite side edges at its upper end with laterally spaced longitudinally extending lips or flanges 16 and 17 between which the arms 10 and 11 are designed to be mounted, the space between said flanges being of a width corresponding to the thick ness of said arms or substantially so, see Fig. 4. The upper face of this scraping member 13 is provided with a V-shaped wire engaging recess 18 which is curved transversely, see Figs. 3 and 5, and which is designed to engage the trolley wire WV in advance of the wheel W. The flanged portions of the the trolley wheel W and form guides therefor to insure the retention of the cutter on the wire. By so curving this V-shaped recess, the scraping-element is designed to op- V erate properly on the wire without exerting too much pressure no matter in what direction the car may be moving; By construct:

ing this scrapingelementlB of copper anddetachably mounting it in the head 6, itmay I n be readily removedand replaced by another should burning out thereof occur and without in any way affecting the body portion of the device, the copper scraping element be-- ing cheaply constructed and easily removed and replaced, thus rendering the device very simple, -inexpensive, and practicaland because of the pivotal mounting of head 6,-all .1

danger of overhead hangers being damaged thereby, is prevented, it being understood that when said device comes in contact with one of said hangers, it will swing downsuf- Y ficiently-to permit it and theheadfi on which it is mounted to pass over said hanger withv out damaging it. This heart-shaped scrap.-v

' 10 and 11 to receive attaching screws '21. as:

ing member13 ;is provided in its opposite,

side edges near its upper end with transversely extending screw threaded socketsl9- vwhich are adapted-to register with correspo'nding threaded apertures 20 in thearms isishown clearly in Figs. 1, 3 and 4;.

The head 6 may be constructed of any suitable material, preferably of iron and the jaws of theattaching bracket are also preferably constructedof iron.

I claim pivotally mounted therein, and means for i limiting the pivotalmovement of said head.

21A sleet remover for trolleys comprising an attaching bracket, a head pivotally mounted in said bracket,a scraping element removably mounted in said head, and means carried by said bracket for limiting the 7 Copies of this patent may beobtained for five centseaclifiiy addressing the Geminissioner of ratentav' swinging movement of said head in both di rectlons.

3. A sleet remover for trolleys comprising an attaching bracket composed of clamping nesses.

jaws each having longitudinally spaced inturned'support engaging lips spaced laterally from the inner faces of the jaws, set screws piercingsaid jaws opposite said lips, a; scraping member pivotally'mounted betweensaid jaws, and means on said jaws for limiting the movement of said scraper mem ber in opposite directions.

l-I A sleet remover for trolleys comprising 7 an attaching bracket composedfofclamping j jawsfleach having longitudinally spaced in:

t ned, s ppo t eng g ng, lips, .spa c1;1ater f ally fromtheinner facesof the-jaws, set

screws piercing said jaws opposite sa' id ;lips,

v a scraping member pivotally mounted be: tween said jaws and cross bars connecting said jaws at the opposite edges thereof for W limiting the swinging scraping member.

5, Asleetre'mover for trolleys comprising A an attaching V bracket, a head pivotally v mounted in saidv bracket and having laterally spaced upwardly extendingarms withjasocket insaid head between said arms,

movement of 7 said heart-shaped scraping member having a de- 7 member to said 1 arms.

' p d g s V at th bo ms th eof adap ed, I to engage said socket, said member fitting between the arms of saidhead, and means for detachably iand:rigidly securing said ,6. A slee't remover for trolleys-comprising I n. achi g" a ke a h ad p vo lly mounted in said bracket andhaving laterally spaced upwardly extending arms; with a socketinsaid head between said arms, a V

heart-shaped scraping-memberv having a depending stud at the bottom thereof adapted v to engage :said' socket, said member fitting r H y between the arms of said head, and means -1. A sleet remover for trolleys comprising. an attaching'bracket having a scraping head for 'detachably and rigidly securing said member to said arms, said scraping member ing laterally extending spaced flanges. projecting outwardly therefrom and adapted-"to engage the opposite side edges of said arms;

being'provided with upward extensions hav T -Witnesses: f r L. W. VAN DnUsnN, r J. HAR'r KINSEY.

Washington, D. G.

' I L AMI AHRENS-7

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