US938387A - Interior grinding device. - Google Patents

Description

Patented 009291909.

Ilil

r edge around thejdoor-opening,

UNITED Asiiuiriis- :roHN R. KELLER, or cINcINNA'rI,

omo, AssIGNoR To vic'roia oF cINcINNA'rI, oiiIo, A conrone'iioiv (ir-ortie.v

L' INTERIOR cnsIN'nING DEVICE'.

To all 'whom it may concern."

Be it known that I, JOHN R. KELLER, a.

attention b'eing called to the accompanying drawing, with ithe reference characters ,marked thereon, which of this specification.v This invention relates to a grinding device constructed to permit itsuse under certain conditions lwhen other means or devices cannot be readily applied.'

The device is more particularly designed for use on interior surfaces of safe-bodies and on the underside of partsv thereof which are not readily accessible to permit use of other tools, and wherel operation by grinding is alsopreferable by reason of the character of the bedone.

vThe inventionis described and illustrated in connection with acast-metal safe-body,-

on the inside of vwhich certain work hasl to be done, as for instance finishing'of'the inner cutting of key-ways, cleaning out of' recesses intended to receive the locking-bolts etc.

'In the following specification an ularly` ointed out in the claims at thereo will be found a full description of my' invention, together with itsl operation, parts and construction, which latter is also illustrated in the accompanying drawing, in which:- ,f j A Figure 1, shows my device in side-eleva-l tion and in position on a safe-body on which it is used tol grind out recesses which are provided therein, to receivethe ends of lockingbolts 'carried by the door' for this body and serving to hold it in closed position. The safe-body as .much oflit as is shown, appears in vertical crosssection, the line of section passing through lthe .opening therein which is provided to receive 'the door above re ferred to.4 Fi 2, shows that part of the wall of the sabody, illustrated in Fig. 1,

't which'contains the doorlopening. It also .shows in top-view the lower part of` my grindin -device which is used inside 'of this safe-bo y, the, device being. substantially V specification o f Letters Patent. Apitation mea Aprii Ii, 1909. serial No.'

yforms also d a part metal and the kind of work to into the solid metal. partic-l lusea grinding-wheel 8, which may be a custhe endshown on a 'horizontal section taken'on line Patented ,l

2 2 of Fig. l, a portion' of thesafefwallf i at the edge of the door-opening'being broken out to uncover lthat part of the grindingdevice otherwise hidden thereby. A Fig'.- 3,

7shows in a lsimilar view, and at reduced scale, theV largerl partfof" the safe as it ap-:

.pears above, with my grinding-device superposed in .positionv and shown-'iii top-view. l;4`1g.4,-is an end-view ofthe device, showing I its right end as it appears in Fig. 1. 5, isa transverse'section Online 5%-5' of Fig.v 2. Fig. 6, is a vertical section on line 61-6 of Fig. 1, lookingtoward the left, observe this g linealso-in Fig. 2.

A indicates the front-walLnf a safe-body which may bean. integral casting, and i is y, the door-opening therein; The door fitted tov this opening, .to close the same is not shown. Bolts are carried by suchV a door to hold the same inclosed position, the ends' of4 lsaid bolts beingi'eceived in. recesses b, provided on the inner side B of the front-wall. These recesses openl into the door-opening, sothat the bolts-ca-rried'on the side of .the

door, whenmoving outwardly therefrom,

mayenter these recesses. ,These-latter may" be cored out in theprough casting, iii-which case they are merely cleaned out and n'ished to proper dimensions, or they may be cut To do either work I tomar emery-wheel' and is mounted upon Aa sha .\9., 11 isa belt-pulley mountedLalso l upon thisshaft, and 12 is a belt-whereby 1 this pulley is driven. The bearings for shaft 9 areprovided on a slide 13 -whichis' 16 pivoted to the carriage and engaging the., i

slide is providedfor this movement. Sufficient of the upper part ofthe carriage is A removed, if necessary, to clear'the pulley during this lateral adjustment, the saine being done with *reference to the slide to clear .the belt, all as best shown in Fig. 6.-

Projections to'form stops which limitv the inovel'iientfof theslide on the carriage-are provided, there being two of them onone andene, which co-acts with them, -o'ii the'l other, they preventing also the beltfpulley the recess in thecarriage in which the pulley y l Adoor-opening uppermost. The

-bridges'this opening, restin upen f Carriage fr0-'rn j rubbing against the opposite ends f of rotates: Two ins 17,' are 'shown-for such purpose on sli e 13, which co-act with. anjother pin,18 on carriage 14 .for this purpose.

projecting'from a hanger 21 which depends from the `underside lof a bedlate 22 which serves to su port the device in position on the safe, this latter being so placed vat the time and as shown in Fig. 3, as to bring its bed plate tlie wall e -which and on opposite portions o lits ed e grindsurrounds the door-opening, While t ing-device proper depends into this opening.

Arm-19 is vertically adjustable, to'bperlnit the .grinding-wheel to be `adjusted to the proper'positionwithreference to the inner side B 'of wall A, under which it has to move, and also with referencev to the depth of recesses b which are to be lout tliereinto. For such purpose arm 19 is provided with or forms part of a slide 2 3 which .-is fitted to hanger 21, both being provided with coinplementary guide-ways 24, for the purposeY Av brace which serves'to steady arm 19 near its free end, by connecting it' totlie bed-v plate, serves also as a meansl to'move the same for this adjustment. For such purpose this brace consists of a rod l25 andof mitslrod 25fat lower end to turn freely -a'stiriup 26, the former :at its'upper end connected to the underside of the bed-plate and the latter to arm 19, `They are also connected to eachother in a` manner 'which perin the stirrup. Its upper end is screwthreaded and -tapped into vthe bed-plate :from below: A'knob 27 is provided on it yto facilitate such turning? Ifthis is done,-

f the upper end ofthe rod screws in or out of the bed-plate according tothe direction ,of its rotation,l and accordingly raises or lowers arm 19 whichA carries the' grinding-v `wheel. After the position ofthe indingwheel has thus been adjusted verticallly7 by l y to these means, itris also adjusted late ra the-proper position b means. of manipula- 5' tion of handle 16, t e grinding-Wheel by o means of its, slide being shifted on the `car ria e. .The grinding-wheel is no w Vready to e fed forward"`into the work, that is to i lcut into' the underside of. wall A, this movement being one lengthwise with reference-to.

the recess to be formed, see arrow in Fig. 2. For` `such purpose-carriage 14 with slide 13, which carries the grinding-wheel, is fitted to arm 19 in a mannerfto permit such movement. 'It is donehere by providing a guide- .way 28 in arm 19 to which a projecting part 29 on the underside ovf carriage 14 is fit-ted asbest-'shown in Fi 62 Suitable means are .provided accessi le for v'manipulation l from' above/whereby the carriage maybe moved accordingly.v They consist of 'two ofbevelewheels 33'.` f The lower shaft 31 su ported on arm 19, so as to move wit it, a caring-34 being provided for it near its 14' is supported by an arm 19,

v-11 assumes when t vicel ina tilted connected for simultaneous -rotation by a set Its other end is screw.- ped into projection 29;'on the carriage, thisA projec-tv gear-connected en threadedrand ta the underside o tion forming a nutfor other shaft 32 is' arranged to extend upwardly through'l the bed-plate and is provided at `its upper end with a suitablehandle or'hand-wheel 35 for its rotation. vIt may find an u.

closely tte thereto, or an independent bearvlower end finds a bearingin the gear-wheel carri d on it, which gear-'wheel is sup orted inea bearing 37. This bearing is attac ed t0 slide 23 of arm 19, so that during the vertical pier bearing inl the bed-plate, if be provided as shown vat 36. ItS- fmfgaiafiy disposesiilfs 31,' 32, perady'eiy the purpose. The

adjustment of this arni, the gear-Wheels remain in mesh.

Pulley 11 'on the grinding-shaft is driven, by another pulley 38 on a line' or counter-shaft, or driven by the shaft of an electrical motor.- A preferable. arrangement is shown in which a motor 39 is supported on bed-plate 2 2. A saddle 4(1 is interposed to which the motor housin is tted/ and connected. In lorder to inter ere as little as possible with the observation of the work andwith access to handle 16,;it is preferable to vmount this motor lengthwise with reference tothe.bed-plate as shown in" Fi .'3. This necessitates the use of uidepu leys 42 -to pro erly direct fL,12, stretched between pu leys 11 and 3 8. These "guide-pulleys are yieldingly supported so as tomaintain a proper belt-tension during the various changes in position whichbelt-pulley e .position of the grinding-wheel is adjusted. Av preferable way is shown by providing the bearings 43 for Athese .guide-pulleys with Shanks 44 yieldingly held 45 sleeved upon these 110 i in position by springs Shanks. .o

'lIo permit the device-t6 pass through-the door-opening of the safe, -'t is'preferable Vto run the grinding-wheel and its carriage as, far toward the hanger as possible. The de.

positionand with the end' offarmfl'in advance is` passed 'in aroundthe. inner ed egoflthe safe-wall', and underz the vSame-. er 'this edeedis, passed, the devicejis righted andfthe -plate'is positioned upon ythe wall which surrounds the .door-opening,- as shown. Fig'. 3,'-thesafe-r body being accordingly suppgrted-,to bring' its doorning u pel-most, p The grmding-w "eel is. adjusted vertically accordingto the -depth of recess-b, to be out` by manipulation -of knob 27 It is adjusted laterally to suitthe width of the recess by 'means of'handle v16. The 'feedmotion forward and lreturn .is obtained by manipulat-l which may be mounted/ ing handle 35. After a recess is cut, the device is shifted around on the safe-wall to proper position for cutting another recess.

When the driving-pulley 38 is mounted on a shaft which is xedly located, shifting 'of the safe-body, to meet these 4various positions, would become necessary.`

After all the recesses have been cut on the underside of wall A, the device is withdrawn in a similar manner and is ready to be ap plied to another safe. A

Having described my invention, claim as new:

1. In a grinding-device,4 the combination of a hanger, an.' arm projecting therefrom, a grinding-wheel, a shaft on lwhich the same is mounted, means'at the freelend of the arm whereby the shaft is supportedin a manner permitting'adjustment of it in the direction of its axis and at right angles thereto, manip.

' -ulating devices to move these meansand ing also provided with aslide, a. hanger to which this slide is-itted and wherebythe arm is adjustably connected to said hanger,

-a bed-plate from which the hanger depends and means above the bed-plate to actuate the grinding-wheel.

3. In a grinding-device, the combination of a bed-plate, a hanger depending Athere-V fr0m,'an arm movably .secured at one. of its ends to this hanger, a grinding-wheel, an adjustable support provided for it at the other end of the arm, operatively connected, angularly arranged shafts, one of which connects also to the grinding-wheelsupport and means accessible above the bed-plate to mani ulate these vshafts for movmg the l grin ing-wheeLsupport.

4.*In a grinding-device, the combination of a frame comprising a bed-plate, a hanger depending therefrom land an arm carried by this hanger, an adjustable grinding-wheel supported on this arm, a shaft forit, a pulley on this shaft, a motor supported on the bedplate, a pulley driven by it, la belt'connecting 'it with the other pulley and guidepulleys for the belt yieldingly' supported on the frame.

In testimony whereof, hereunto afx my signature in the presence of two witnesses.

JOHN R. KELLER;

' Witnesses:

G. A. HAT'rERSLEY, C. SPENGELJ

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