US1379363A

US1379363A - Track scraper or cleaner

Info

Publication number: US1379363A
Application number: US377134A
Authority: US
Inventors: Fred N Root
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-04-27
Filing date: 1920-04-27
Publication date: 1921-05-24
Anticipated expiration: 1938-05-24

Description

F. N. ROOT.

TRACKSCRAPER 0R CLEANER.

APPLICATION FILED APR. 21. 1920.

1 ,3-79, 3,63. Patented May 24,1921

rnnn 1v. ROOT, or KALAnAzoo, MICHIGAN.

TRACK SCRAPER OR. CLEANER.

Specification of Letters Patent.

Patented May 24., 1921.

Application filed. April 27, 1920. .7 Serial N 0 1371134.

To all whom it may concern Be it known that I, FRED N. ROOT, a citizen of the United States, residing at Kalamazoo, Kalamazoo county, State of Michigan, have invented certain new and useful.

Improvements in Track Scrapers or Cleaners, of which the following is a specification.

This invention relates to improvements in track scrapers or cleaners, more especially for street cars.

The objects of the invention are First, to provide a suitable yielding scraper with means for automatically locking it in down or up position.

Second, to provide an improved construction ofspring scraper which shall yield effectively whether the car is going forward or backward.

Objects relating to details and economies of construction and operation will definitely appear from the detailed description to follow. I accomplish the objects of my 1nvention by the devices and means described in the following specification; The invention is clearly defined and pointed.- out in the claims.

A structure which is apreferred embodiment of my invention is fully illustrated in the accompanying drawing, forming a part of this specification, in which:

Figure I is a detail perspective view of my improved scraper device for street car use, as it would appear arranged for operation. but detached from the framework of the street car.

Fig. II is a detail perspective view of a spring and scraper shoe detached.

Fig. III is an enlarged detail sectional plan view, taken on line 33 of Fig. I, showing details of the automatic lock.

In the drawing similar numerals of reference refer to similar parts throughout the several views.

Considering the numbered parts of the drawing, 1 is the scraper shoe, 2 is the track cleaning tooth or bar disposed to engage the groove or the notch at the side of a rail. 3 is the spring which has a substantlally vertical portion 3' that is extended down and secured to the back of the scraper shoe. The forward end of the spring 8 is bent into the arc of a circle 3", where it is clamped by a clip 4 to the side of the rock shaft 5. The rock shaft 5 is disposed transversely and supported by brackets 6 which are secured to the under framework of the platform or front portion of a street car. The rock shaft 5 is provided with an actuating arm 7 which 1s actuated by anoperating link 8. The operating link '8 is controlled from the vertical control column 9,,which may be provided with a hand wheel 9 or a crank 9", or any means of control, as indicated in Fig. II.

An arm 10 is securely fixed to the lower end ofjthe column 9 and it is pivoted at 11 to the rear endof the operating link 8. The

lower end. of the column 9 is pivoted at 13 on the supporting angle iron brackets 12 through the horizontal portion 12 of the said angle iron bracket and at a little distance. from the vertical member thereof.

The link 8 is notched atlt so that the pivot 11 passes the dead center when the control column 9 is manipulated. It will thus be seen thatwhen the scraper is thrown down to. -its work, strong spring pressure is ap plied and because the rock shaft yields in this application, when the arm 10 swings so that the. pivot .11 passesrthe dead center, the

device is automatically/locked in its down position for scraping. On the other hand, when the arm; 10 is thrown to the opposite position it passes=the dead center when it contacts with the vertical portion of the angle bracket and the scraper is locked in its elevated position.

Because of the fact that the scraper is at tached to a vertical portion of the rear wardly extending horizontally disposed spring, the same can yield and tilt either forward or back and readily pass obstruc tions on the track.

I have described my improved structure in its simplest form and desire to state that it can be applied and made use of even when power means and cushioning devices are made use of, but as my invention does not pertain to the same I have not illustrated such details here. I desire to claim the structure in the specific form here illustrated and also broadly, as pointed out in the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a track scraper, the combination of a scraper shoe, a blade spring carrying the same having a vertical portion to which the said scraper blade is attached and a substantially horizontal portion, a rock shaft, means for securing the end of said spring to said rock shaft, an actuating arm on said rock shaft, a connecting link to said arm, a vertical control column, and an arm at the lower end of said column, pivotally con- 1 nected to said link to form a toggle joint,

arranged to pass the dead center, said link.

dead center, saidlink beinglnotched'to permit the pivot to pass the dead center to hold the scraper in its up or down position, coacting as specified.

3. In a trackiscraper, the combination of a scraper shoe, a blade spring'oarryin'g the same having a vertical 'portion to 'whi'ch the said scraper blade is attached and a substantially horizontal portion, a rock shaft, means for'securingthe end "of said spring to said 'rockzshaft, an'actuating arm onsaid' vrock -shaft, a connecting linkto said arm;

a Vertical-control column, and anarmalt the lower end of said column, pivotally connected to said link to form a toggle joint,"

arranged to pass the dead-center, coacting as specified. v

1 4. .In a track scraper, the combination of a scraper shoe, a blade spring carrying the same having a vertical portion to which the said scraper blade is attached and a "substantially "horizontal portion, a rock shaft, means for securing the end of said spring to said rock shaft, an actuating arm on saidrock shaft, a vertical control column, and means connecting said column "to said rockshaft, coacting as specified.

5. In a track scraper, the combination of ascraper shoe, a rock'shaft,f'spr1ng connect1onsfroin'sa1d rock shaft to said scraper shoe, an actuating arm 'onsaid rock shaft,

a connecting link to saifd arm, a vertical control column and an armatth'e lower endof said 'colurnn, pivotally connected to said link to form a :toggle joint, arranged to pass the d'e'ad center, said link being'notched to permit 5 the 'pivot to pass' the' dead-center to hold the scraper in its up or down position, coacting as specified. I

6. In-a track scrap'er, tlie-combination of a scraper shoe, V rock-shaft, spring C011I1G' tions from said rockshaftto said scraper shoeyan actuating armon'said rock shaft, a connet'zting lin-k to said-arm, avertical control columnya'nd anarm at tne lower end of said column, pivotally connected'to said link toform a toggletjoint, arranged to pass the dead center, coac'tin'g as specified.

Inwitness "whereof, 'I have hereunto set my" hand and sealin-the' presence of two witnesse's. V e

' FRED vN. BOOT. [L.'S,]

WVitnesses:

, LUELLA G. GRnENrInLD, f MAReAnnr L. GEASQOW.