US1420919A - Scraper - Google Patents

Description

0. FIKE.

SCRAPER. l APPLICATION FILED 1AN`28. |921. 1,420,9 1 9 Patented June 27, 1922.

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OLIVER FIXE, or ,nenrsonvirmn KENTUCKY.

SCRAPER.

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n Specification of Letters Patent. Batntgd June 22, `1922.

Application filed JanuaryA 28, 1921. Serial No. 440,678, l

To all whom t may concern:

Be it known that I, OLIVER Finn, a citizen ofthe United States, residing at Madison! ville, in the county of Hopkins and State of Kentucky, have invented a new and use- ;Eul Scraper, of which the following is a specification. w

The device forming the subject matter of this application is adapted to be employed for removing dust from a. hole which hasv beenbored in a coal mineto receive an eX- plosive charge.

The invention aims to provide novel means for operating and controlling a blade, which, being mounted pivotally, at one end of a staff, serves to engage the dust.

I do not bind myself to the specific form shown, since, within the scope of' what is claimed, a mechanic may make changes without departing Jfrom the spirit of the invention.

ln the drawings F igure 1 v*shows in front elevation, a tool. constructed in ac-` cordance with the invention, the blade being disposed parallel to the stall; Figure 2 is a side elevation wherein parts are broken broken away; Figure 3 is a section on the line 3-8 of Figure 2; Figure 4 is a ragmental elevation showing the blade dis* posed at right angles to the staff.

The numeral 1 denotes a staff of any desired length, the length of the staff being governed by the depth of the holes, on an average. At one end, the staff 1 is supplied with a handle 2. The opposite end of the staff 1 terminates in a thinned part 8 received between ears 4 on a blade 5, the elements 3 and 4 being connected by a pivot member 6, the construction being such that the blade may be disposed parallel to the staff 1, as shown in Figure 1, or at right angles thereto, as shown in Figure 2. Guides 7 and 8 are mounted on that portion of the stall 1 which is adjacent to the handle 2. Guides 9 are distributed along the staii 1 between the guide 8 and the blade 5.

The device includes an operatingmember denoted generally by the numeral 10. The

o eratinof member 10 is a com osite struc-k supported as shown atj 16 on the guide 7 andincludes =a projection 17 adapted to be engaged in the notch or seat 14. A spring 18 is secured at one end to the latch 15 and bears at its other end on the plunger 11` The function of the springl isto cause the yprojection 17 ofthe latch 15 tobear on the plunger 11, so that when theplunger 11 is retracted, the projection'on Lthe latch will engage automatically with the seat 14, as depicted in Figure 2. l j y l The operating member includes, further, a connection 19 which may be in the form of a rod having some flexibility or resiliency, the connection being mounted to reciprou cate in the guides v9.- The connection 19 is pivoted at one end, as shown at 20, to a pro#vr and forms, as well, an abutment for the spring 24. ,n

In practical operation, the blade 5 is disposed parallel to the staff 1, as shown in Figure 1, the spring 24 serving to advance the operating member 10, and to hold the blade parallel to the stati". The working end of the toolmay be introduced into the drill hole. the blade 5 entering the dust readily, because the blade is located parallel to the stal 1 and parallel to the line of advance of the stati', when the stall is thrust into the hole. After the blade 5, arranged as shown in Figure 1. has been worked yinto the hole to the desired point, the operator retracts the plunger 11, and consequently the connection 19, by means of the handle 12, until the blade 5 is at right angles to the staff 1, the projection 11 on the latch 15 engaging the seat 14 in the plunger 11 to hold the blade 5 in the position shown in Figure 2, and to prevent the operating member 10 from advancing under the action of the spring 24. .which has been compressed. The statt 1 is retracted out of the hole, the blade 5 carrying the dirt or dust. Pressure exerted'on the latch 15 disengages the latch from. the seat 14, Whereupon the parts are `restored to the position of Figure 1, under the impulse of the spring 24.

I claim l. In a device of the class described, a staff; a blade pivoted to the staff; an operating member slidable on the staff and pivoted to the blade; spring means for advancingthe operating member; and releasable means for holding the operatingmember retracted7 against the action of the spring means. y

2. In a=device of the class described; a staff; a blade pivoted to the staff; an operating memberv slidable ontlie staff and pivoted to the blade; spring means for advancing the operating member; a latch supported for swinging movement and coacting With the operating member to hold the same retracted against the action of the spring means; and a spring interposed between the latch and the operating member and constituting means for engaging the latch with the operating member.

3. In a. device of the class described, a straff; a blade pivoted to the staff; a guide on the staf; an operating member slidable in the guide and pivoted to the blade; spring means for advancing the operating member; and a latch pivotally mounted on the guide and coacting With the operating member to hold the same retracted against the action of the spring means.

In testimony that I claim the foregoing as my own,v I have hereto aiiixed mv signature in the presence of two Witnesses.

OLIVER FIKE Iit-nesses: f

J. C. RmDLE, F. H. DAY.

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