US2668463A

US2668463A - Piano flange reamer and repinning tool

Info

Publication number: US2668463A
Application number: US319886A
Authority: US
Inventors: Charles B Archer
Original assignee: Individual
Current assignee: Individual
Priority date: 1952-11-12
Filing date: 1952-11-12
Publication date: 1954-02-09
Anticipated expiration: 1971-02-09

Description

Feb. 9, 1954 c. B. ARCHER 2,668,463 PIANO FLANGE REAMER AND REPINNING TOOL Filed Nov. 12, 1952 2 Sheets-Sheet l J7 51 V l 37 INVENTOR. '27 i 5/3 hrsfi/firzwg Feb. 9, 1954 c. B. ARCHER 2,668,463

PIANO FLANGE REAMER AND REPINNING TOOL Filed Nov. 12, 1952 .2 Sheets-Sheet 2 ATTORNEYS Patented Feb. 9, 1954 TED PATENT orerce "PfA'NG FLKNGE .efifiREPiNNG Charles manner,- Homestead Park, Pa. Apflieafion member 12, 1952, seiiaIN-o. 319,886

.1 H V This invention relates to tools used"; riri'1'aiii for repairing piano actions, and in partieiiiar a tooi'having pivotal'ly connected handles Between which a piano flange is clamped "with a reamer slidably mounted in one handle-and actuated by a hand lever pivotally inounted' onthe handle for'fo'rcing apin through onesideof-the flange and for reaming the opening for thepin in the flangeby spinning the reamer, and a plunger slid'ably mountedin'theother hahdlefalig'fi'ed" with the mama! and adapted tobe actuated by a hand lever 'piv'otaliy' mounted on the other handle for returningthe pin to itsposition in the flange.

' The'pu'rpose of this-invention is to eliminate guesswork and' atthesame" time expedite re"- p'airing flanges of piano act-ions.

The conventional mannerbf repairing a piano action or doing a releasing job of the action is to remove the pin pivot-ally mounting aharnrn'er butt or jack'in the flange'by driving'th'e pin outwith a special punch; withdrawing it'with special pliersand then" reaming out the "open ing with a tapered 'ream'er whicnremoves '8 fitfle' of the material of the bushing. R'emeiiin'g /mb of aninchtbemuch of the bushing mayrnake it necessary to replace the bushing-aridpinand ifto'o little removed it IIiaYbWHGOSSa-IY t6 repeat'the operation. in numerdus ins ces-it necessary to use new pinsandinfitt V gthe' pins the bushings-"are aecidentiypnshedn the openings in the flanges. With these-tilting inmind this inventivecontemplates-on" "Iflte the in wh ih pie-n0 aetiofiflanges are p'ds'itified whereby a reamer'drives'the pin frdnr one side of thefiangeso-thait theopening maylee-"reamed out with the reamer and wherein after returning the pin with the same tool-'theposit-ien of the flange is reversed and thesameac'tioii or operation repeated in the other side. v

The'*object of this invention'is', therefore, to provide'a pianoaeti'o'nrepair momma reams ouebearmgbusnings 'in'the sides of a=-15iano action fiange-and r'etnrns the 'pins to'th'e meme-6pm: inQS.

Another objectof the invention is to pitiiiide a mane 'aetidn" reiiair" tool whereby awnings for pins connecting hammer putts" and-"jacks to' flanges are reamed out without cdrnpleteiy *re': movin .pirispivotally connecting the" hammer butts and jacks to the" flanges.

.A further object of'theinvention is to provide apiano' flange repair 17001 Whih i SO'f simple and economical cbnstruction. 7'

"With these'and other objects'ana advantages haw in view the invention embodiesa tool having upper andiower handles pivotaily connete'd at one end= with a reamer slidablym'ounted in the. upper-handle and actuated by a hand lever pivota'il'ly connected to' the handle and-m Whieh a=p1u-hge'r, s-lidably mounted in the lower handle and aligned with-the reamer-is actuated-hyalever pivotally mounted on said lowerhandle.

Other v features and advantages of the inven: tion wiliappear from the following description taken in'conneetion with the drawings whereini Figure-1 is a side-elevational-view illustrating the improved pianoa'ction repair tool.

Figure 2 is a plan view of the too ishowing-a hammer "butt extended from one side of the tool.

- Figure 3 is a vertical rossse'etion throughthe te'ol takenon'1ine"-3 3 of Fig'. 1 showing a'ieamer positioned to force a pin from a flange in-the tool and a plun'gerfor r'eturningthe' pin.

"Figure 4 is a detail taken on 1ine4-4 ef Fig. 1-1oo1ingu ward1 teward-the under surface of the upper handle and showinga flange holding giiid pivtally mounteden the" under surface (if-the" upper handle.

I igure; 5 -is avert-mm section similar to' "that shown" "Fig. 3' with the parts shown on :an enlarged s'eaieand shewing therea'mer extended ttiioughnne side of-thefiang eof the piano ac men;

fi ure- Gis adetail similar to that shown in Figs. 3'- and 5 Sh6Wi1-1g" the pin returned to its pesitien in tHe' flange.

"Figure"? a section showing the piano action flange reversed with the reamer pds'itio'ned to release tne pin in the 'opposite'sideofthehflar i'ge.

- Fig-fire 8 j isa detailshowing a piano action hammer and flange looking toward the under surface of theu perfhandle of-the tool.- .Figu're is'a verticalsection also sirnilar to that sho'wn in- Figs;- 3 and 5 i11ustr'ating th'evde vice' tised in removing the pin whereby the plunger is" omitted frond the lowerhandle.

Ffigu-re- IO is a vertical: section" siniila'r to that in 1 Fig. '9 shewing a new pin 1 inserted in the :Figuie n-is a-vi'ew' similar to thee-shew Figure is a detail showing a pin holder with part of the holder broken away and shown in section.

Figure 16 is a detail illustrating the plunger for returning the pins to operative positions in the flanges.

Referring now to the drawings wherein like reference characters denote corresponding parts the improved piano action repair tool of this invention includes an upper handle ID, a lower handle l I, a reamer i2 having a shank l3 with a head 14, a reamer actuating lever l5 pivotally mounted on the upper handle it, and a plunger 16 slidably mounted in an opening I! in the lower handle I I and positioned to be actuated by a hand lever I8 pivotally mounted on the lower handle.

The handles H) and I l which are pivotally connected by a pin I9 are formed with enlarged sections and 2 I, respectively, and the hand levers l5 and 18 are pivotally mounted on the enlarged section with

pins

22 and 23.

The lever 15 is provided with a cam 24 that is positioned to engage the end surface of the head 14 on the shank 13. The head I4 is secured to the shank with a set screw 25 and the shank is slidably mounted in a bore or opening 25 in the enlarged section 20 of the handle 10.

The plunger [6 which is slidably mounted in the bore I! is provided with

heads

21 and 28 and the plunger is retained in the opening by a screw 29, the inner end of which is positioned between the heads of the plunger. The plunger is actuated by a cam 30 on the lever l8 after a pin 3| extended through a flange 32 is pressed inwardly with the reamer l2 to the position shown in Fig. 5 wherein the reamer extends through a bushing 33 in one side of the flange and into a hammer butt or jack, as indicated by the numeral 34.

With the parts arranged in this position the hand lever i5 is released and the reamer is rotated by the thumb and forefinger of the operator with the thumb and forefinger gripping the knurled surface of the head M. The spinning movement of the reamer removes corrosion, grease or the like in the bushing 33. After reaming the bushing 33 in one side the hand lever I8 is drawn upwardly whereby the plunger It drives the pin 3| back to its position in the flange. The flange may be turned over whereby the same operation is performed on the opposite side with the reamer forcing the pin from the bushing, and reaming the opening and with the plunger returning the pin to the position particularly as shown in Fig. 3.

By this means all guess work is eliminated and the connection of the flange to the hammer butt or jack is restored to its original condition.

The flange 32 is retained in position with a guide 35, as illustrated in Fig. 4, the guide being pivotally mounted on the under surface of the upper handle ID with a pin 36 and being held in position with a stud having a head 31', the stud extending through a slot 38 in the guide. ;,The extended end of the guide provided with a slot 39 in which the flange 32 is positioned whereby the opening in the bushing of the flange is aligned with the reamer l2. a I

Figure 6 illustrates the positions of the parts with the pin returned by the plunger after reaming the bushing in the upper side of the flange and Fig. '7 is a view similar to that shown in Fig. 6 showing the position of the flange reversed whereby the reamer is in position for reaming the bushing on the opposite side of the flange.

In Fig. 8 the hammer butt 34 and flange 32 with the pin 3| are assembled and the parts are retained in position in which they are aligned with the reamer by the guide 35.

In Figs. 9, l0, and 11 the shank of the reamer is replaced with a pin holder 40 having a socket 4i therein in which a pin, as indicated by the numeral 42 and as illustrated in Fig. 14 is positioned and after reaming the bushing of the flange, such as the flange 32 a pin may be inserted in the socket 4i and with the holder 40 in the opening 26 of the upper handle the new pin may drive the old pin through the flange and hammer butt or jack. With the new pin in position the pin holder is reversed, as shown in Fig. 11 whereby the pin is forced through both sides of the flange with the old pin, as indicated by the numeral 43, which shows the pin dropping out. In this operation the plunger i6 is omitted so that the old pin 43 is free to drop through the opening I! in the lower handle. The pin holder may also be provided with a knurled head as indicated by the numeral 44 and the head 44 is retained in position with a set screw 45.

With the parts arranged in this manner the reamer l2 with the head 14 thereon is positioned in the opening 25 of the upper handle and a piano action flange with a hammer butt or jack therein, as illustrated in Fig. 8, is positioned between the handles with the pin of the piano action aligned by the guide 35 with the reamer and with the parts in position the reamer is forced inwardly with the hand lever 15 whereby the reamer passes through the upper side of the flange and into a tongue of the hammer butt or jack with the pin extended from the lower side of the flange. With the parts in this position the operator spins the reamer, reaming out the bushing in the upper side of the flange and upon completion of this operation the hand lever i8 is drawn upwardly whereby the plunger drives the pin back into the opening in the bushing. The position of the flange with the hammer butt orjack therein is reversed and the action repeated for the opposite side.

By this means the pivotal connection between the flange and hammer butt or jack is accurately refinished without over enlarging the openings of the bushings, however, should it be desired to replace the pin the pins may be removed and replaced with the parts as illustrated in Figs. 9, l0 and 11.

It will be understood that modifications, within the scope of the appended claims, may be made in the design and arrangement of the parts without departing from the spirit of the invention.

What is claimed is:

1. A piano action repair tool comprising a pair of handles pivotally connected at one of the ends thereof, a hand lever pivotally mounted on each of said handles, each of said handles having an opening therethrough and the opening of one handle being aligned with the opening of the other handle, and a reamer slidably mounted in the opening of one handle andpositioned to be actuated by the hand lever pivotally mounted on said handle, a-plunger slidably mounted in the opening of the other handle and positioned to be actuated by the hand lever pivotally mounted on said other handle to press a pin of a piano action flange positioned between said handles into said flange.

' 2. A piano action repair tool comprising a pair of handles pivotally connected at one of the ends thereof, a hand lever pivotally mounted on each of said handles, each of said handles having an opening therethrough and said openings positioned perpendicular to a plane extended between the handles, the opening of one of the handles being aligned with the opening of the other handle, a reamer having a knurled head on an extended end thereof slidably mounted in the opening of one handle and positioned to be actuated by the hand lever pivotally mounted on said handle, a piano action hinge guide positioned on one of said handles and a plunger slidably mounted in the opening of the handle opposite to the handle in which the reamer is positioned and said plunger positioned to be actuated by the hand lever pivotally mounted on said handle.

3. A piano action repair tool comprising a pair of handles pivotally connected at one of the ends thereof, a hand lever pivotally mounted on each of said handles, each of said handles having an opening therethrough and said openings positioned perpendicular to a plane extended between the handles, the opening of one of the handles being aligned with the opening of the other handle, a reamer having a knurled head on an extended end thereof slidably mounted in the opening of one handle and positioned to be actuated by the hand lever pivotally mounted on said handle, a piano action hinge guide positioned on one .of said handles, a plunger having a head on each end and with the intermediate portion relieved slidably mounted in the opening of the handle opposite to the handle in which the reamer is positioned and said plunger positioned to be actuated by the hand lever pivotally mounted on said handle, and a set screw threaded in the handle and extended into the opening of the handle and relieved portion of the plunger for retaining the plunger in the handle, the knurled head facilitating spinning the reamer with the thumb and forefinger of a hand.

4. A piano action repair tool comprising a pair of handles pivotally connected at one of the ends thereof, a hand lever pivotally mounted on each of said handles, each of said handles having an opening therethrough and said openings positioned perpendicular to a plane extended between the handles, the opening of one of the handles being aligned with the opening of the other handle, a reamer having a knurled head on an extended end thereof slidably mounted in the opening of one handle and positioned to be actuated by the hand lever pivotally mounted on said handle, said reamer having an enlarged shank positioned in the bore of the handle and said knurled head being secured to the shank with a set screw, a piano action hinge guide positioned on one of said handles and a plunger slidably mounted in the opening of the handle opposite to the handle in which the reamer is positioned and said plunger positioned to be actuated by the hand lever pivotally mounted on said handle, said guide being pivotally mounted on the handle.

, 5. In a piano action repair tool, the combination which comprises an upper handle having an enlarged section adjacent one end with a gripping section extended from said enlarged section,

a lower handle having an enlarged section adjacent one end and having a gripping section extended from the enlarged section, means piv otally connecting the ends of the handles ad- J'acent which said enlarged sections thereof are positioned, said enlarged sections of each handle having a bore positioned perpendicular to a plane extended from the pivotal connection midway between the handles and the bore of the enlarged section of one handle being aligned with the bore of the enlarged section of the other handle, a reamer having a knurled head slidably mounted in the bore of the upper handle, a hand lever having a cam thereon pivotally mounted .on the enlarged section of the upper handle and positioned whereby the cam engages the head of the reamer upon moving the extended end of the lever toward the handle on the enlarged section of which it is mounted, a plunger having enlarged ends slidably mounted in the opening of the lower handle, and a hand lever also having a cam thereon pivotally mounted on the enlarged section of the lower handle and positioned whereby the cam engages the plunger upon movement of the hand lever toward the handle upon which it is pivotally mounted.

6. In a piano action repair tool, the combination which comprises an upper handle having an enlarged section adjacent one end with a gripping section extended from said enlarged section, a lower handle having an enlarged section adjacent one end and having a gripping section extended from the enlarged section, means pivotally connecting the ends of the handles adjacent which said enlarged sections thereof are positioned, bores positioned perpendicular to a plane extended from the pivotal connection midway between the handles through said enlarged sections vof the handles and the bore of the enlarged section of one handle being aligned with the bore of the enlarged section of the other handle, a reamer having a knurled head slidably mounted in the bore of the upper handle, a hand lever having a cam thereon pivotally mounted on the enlarged section of the upper handle and positioned whereby the cam engages the head of the reamer upon moving the extended end of the lever toward the handle on the enlarged section of which it is mounted, a plunger having enlarged ends slidably mounted in the opening of the lower handle, a hand lever also having a cam thereon pivotally mounted on the enlarged section of the lower handle and positioned whereby the cam engages the plunger upon movement of the hand lever toward the handle upon which it is pivotally mounted, and a guide pivotally mounted on the upper handle and having a notch therein positioned to receive a piano action flange with a pin extended through the flange aligned with a reamer in the bore of said upper handle.

CHARLES B. ARCHER.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 537,382 Branson Apr. 9, 1895 1,496,748 Stengel June 3, 1924