US1559724A - Trimming tool - Google Patents

Description

Nov. 3, 1925. V 1,559,724

6. W. MEADER ET AL TRIIIIING TOOL Filed Jan. 22. 1924 or lllllll:

n h fiilu Patented Nov. 3, 1925.

1 UNITED? PATENT omen;

GEORGE w. -MEADER, HORACE r.

mama-G soon Application filed. January 22, 1924; "serial N... 687,692.

To all who/n ii may com-erm- Be it known that we, GEORGE V. 'h lEADER, HoRAc-n P. ,liilnixnnn, and IIER1\L\N residents, respectively, of Oakland, in the county of Alameda and State of Callforma, have ointly invented new and use ful Improvements in Trimming Tools, of

which'the following is a specification.

Our invention relates to trimming tools, and more particularly to paper hangers knives, for the cutting; and trimming of wall paper before and after its application the above knives. These knives constantly collect paste, bits of paper and the fine edges of cut paper. The collected mass soon thickens, dries and liar-dens, and if not washed, scraped off and cleaned, neat cut" ting or trnnming '18 slow and difficult.-

Furthermore, th above knives due to the said collections at the cutting edge, soon become very dull and consequently must be sharpened very frequently.

The main objects which we aim to attain by ourtrimming tool, are the elimination of the necessity of washing, scraping, cleaning and sharpening as heretofore required.

lVe accomplish the above objects automatically by the novel. arrangement of our essential elements and which are, a knife, scraper and grinding or sharpening abradant.

Other objects and advantages of the invention will appear in the subj oined description of the accompanying sheet of drawings, in which:

Figure 1 is a front view of our tool show ing to advantage the scraper thereof. Part of the handle is broken away.

Fig. 2 is a sectional view through the longitudinal center of the tool and at right IF Maseru, citizens of the United States, and

the cutting edge of the tool angles to Fig.1"and it shows all theparts assembled. i i

Fig. 3 is a rear vieWof Fig. 1.

' Fig. 4 is an enlarged and fragmentary sectional detail of Fig. 2 showing the aforesaid essential elements in operative position.

'Advcrting to the drawing f and figures thereof: The numeral 5 represents the supporting member= of thextool, and is preferably a metallic casting having a tang end 6 to be driven in any suitable handle 7. 8 is a'common ferrule, such as provided for handles."

At the other end of the supporting member 5 is a boss 9 bored toreceive-a shaft 10. Theshaft may be retained in the bore by the pin 11, driven through the wall-of the boss into the groove 12, and which groove is of such size to of the shaft about-the pin." i v The other end of shaft 10 may be-recluced is customarily ivrn nnnn, Ann HER-Mane. HEADER, or ,OOAKYI'JANDL 2 CALIFORNIA. a

allow rotative clearance as at '13 to snugly receive.the-circular-knife 14, which latter is preferably' of sheet "tool 1 steel. The knife has: a bevellededge 15 on the tool, and said knife is rigidly secured to the shaft by the latter thereover as at 16.

Between the ends of the supporting'memher 5 isa bo s17, having a hole formed therethrough-at a suitable angle to receive an abrasive member 18, adapted to contact the bevelled edge 15- of the knife. The abrasive member 18 may be a prepared core of emery or other grinding material, or it may be a sharpening stone.

On the boss 17, threads 19 are formed for the reception of a threaded cap 20, to house within's-aidboss and cap a coil spring 21. By means of the threads the arrangement is adjustable, s0 that any desired tension may be one side'thereof' to form the cutting edge of so being riveted kept on the abrassive member 18 for con stant tensionof the latter on the said bevelled edge of the knife.

On the opposite side of the knife and 0pposed to the abrassive member is a scraper 22 of spring steel, adapted to be kept incontact with the knifeby means of the machine screw 23 tapped into the supporting member 5. A tang 24 is on the scraper to engage the handle to keep the scraper from turning on the said screw.

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The scraper is preferably formed with an opening 25, to permit the abrasive member 18 to freely contact the entire widthof the bevelled edge of the knife and Without touching the scraper.

20 is adj usted just In operation, the cap 2 sufiiciently to compress the coil spring lightly on the abrasive member 18, to cause the latter to lightly contact the bevelled edge 15 of the knife. ()n the reverse side of said knife the screw 23 istightened just sufliciently to cause the resilient scraper to bear lightlyon said. side, The wheel knife is now in position to freely turn between the abrasive member "and scraper, thus, it will be noted that thecutting edge of the knife will always be free of paste and bits of paper, and furthermore will be continuously kept in a cleanedand sharpened condition,

the whole resulting in a saving of much time and permitting-a greater amount of work to be done. Also the knifev will always be kept 'in an efficient condition :foruse.

From the foregoing description taken in connection with the accompanying drawings,

the advantages of the construction and method of operation will be readily understood by those skilled in the art to which the invention appertains, and while we have 'deporting member having mounted thereon a circular knife, an abrasive member and a scraper; and said knife adapted to revolve between said abrasive member and scraper. I

2. A trimming tool for paperand the like, comprising a knife wheel, a supporting member therefor, an abrasive member anda handle; one end of said supporting member adapted to engage the handle and the other 'end adapted to rotatably support the knife wheel and between said ends to support the said abrasive member, and the latter adapted to be in constant tension against the cutting edge of saidknife wheel.

3. In a trimming tool the combination of.

a supportingmember, a circular knife revol-Vably mounted at one end of said supporting member and 'a handle mounted at the other end, a scraper secured to said supporting member and engaging one sideof said knife and an abrasive member secured to said supporting.member engaging the opposite side of said knife.

4. A trimming tool, comprising an abrasive element, a disk having a bevelled'knife edge, a handle and a supporting member housing and retaining a shaft at one end thereof for integrally supporting said'disk thereto, and said member having a tang at its otherend for securement to said handle, and between said ends said member provided with means for engaging said abra- I sive element and holding the same tensed against the SELlCl bevelled knife edge for keeping said edge clean and sharp.

In testimony whereof we affix our sig natures.

EO GE w. MEADEB- HORACE P. MEADER. HERMAN T. MEADER.

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