US1846199A - Apparatus for routing - Google Patents

Description

APPARATUS FOR ROUTING Filed May 1l, 1931 2 Sheets-Sheet l 12W/'enfin' iv/MW Feb. 23, 1932. H w, HALL 1,846,199

APPARATUS FOR ROUTING Filed May 11, 1931 2 Sheets-Sheet .2

Patented Feb. 23, 1932 UNITED STATES HUBAC'E W. HALL, 0F NEWTON, MASSACHUSETTS Vlummvrus Fon Ron'rING Application and may 11, 1931. sei-iai No. 536,348. i ,p

This invention relates to an apparatus for routing, and more particularly to `one for cutting channels in rackets intended to be strung.

In the manufacture of rackets it is the practice to cut channels in the upper portion of the bow head of a racket between certain l and it is necessary to break the corners down with a metal punch so they will be less likely to fray the strings; but even after all this workthese channels are so crudely made that they have always been unsatisfactory.

`ne object of my invention is to provide routing apparatus which will cut these channels to an even width and depth and leave a smooth, plane surface. j Another object has been to construct my apparatus sothatthe racket may readily be placed and held in working position, and so that the channeling may be quickly accomplished by simple operations. v

The foregoing and other objects which will appear as the nature of the invention is better understood, may be accomplished by a construction, combination and operative ar-` rangement of parts such as is disclosed by the drawings.

gFigure 4 1s a cross-section takenon the line The nature of the invention is such as to render it suscept1ble to various 1 -lf of Figure `lvshowing the router guard in a slot in the jig and a cutting bit extendingl into a holein the racket ready to cut a channel from there to the next hole.

Figure 5 is a front elevation showing m jig and racket held in workingposition by spring means, said means being shownin end view.` i

Figure 6 is a front elevation of the spring means fastened tothe floor. Y

As illustrated, my deviceco'nsists of a jig or form 11 preferably made offmetalor some other durable material, whichis fastened to a table or bench 12 near the front thereof by screws 1B. A section of said table at the front thereof is cut out as at 14, shown 'in Figure 2 of the drawings. Saidfjig extends over and above said cutout portion 14. The shape of `said jig is such that the upper portion of the heard of a racketl contacts with the inner surface thereof.

Said jig 11 `is provided with uide blocks 17 on each side thereof, preferably opposite each other, which guides 17 extend downwardly. These blocks 17 i are `spaced apart on opposite sides slightly farther than the width or cross thickness of the wooden bow headof the racket whichis between them, so that it may be moved slightly.` between said blocks inllining it up with slots 18 which are out in said jig 11 at certain points. These slots 18 are `of such shape that channels 19 may be cut between holes 20 which are drilled through the bow head of the racket at certain pointsfor stringing purposes.

A routerQB is used to cut the channels, it having a guard Qii'at its lower end and a bit projecting beyond said guard, the projecting distance determining the depth of the channels 19, their width beingdetermined by the diameterof said bit. Said guard is of such a size that it fits into saidslots 1S and may be moved therein, the slots, of course, being `wider than the channelsto be cut and extending slightly beyond the holesQO so that said router 23 may be moved until the bit 25 reaches said holes; but not go beyond.` v

In ordcrthat the racket may automatically be held in working position in my `jig I provide spring means composedoof upper and l 31 is also. fastened -toy said .upper bowwspringu 26, as shown` in yFigures 5 and 1ofthe drawings, by the same bolts 32 which hold said foot lever 30. This rest member 3l preferably in f center towards the outside ends, and is shown in said Figure 5 as conoaved. A's the racket` handle should rest on the center orlowenporf tion of said rest member 3l`the higher concaved `surface tends to prevent itr from;k movf ing:A sidewise.

My'` apparatus is: operated "by pressingptliei"l foot lever 30 downwardly thereby compressl ingisaid bow=.sprin-gs,- until -therefissuflicient space-ibetweenrsaid ji-g 1l and f'said 'restfmembei'l fto insert La V:iaoketffin pgositiony then said lever is released and said bow springs expand forcing. the vracket? against sa`id. j ig'llwhile r: still under tension and firinlyzholdingit there` iny workinggposition'-c Care inustbeexercised to see'y that-@the:slotsf4 -18tare lined :up with and overlie; the.v racket holes 20- :as-fillustrated :in Figureiof the drawings: The'routei' guard4 24iis' inserted Iinto'said 'slot'sl 18 andtheubit: 251extends intof ashole 2O in'the :racket-,f where'- upon the router is'moved across-from one holez` to. another asi it is revolved atea very high. speed, tlie'slotsl being sure guides, so that:V I -thez'cuttingiceases when,the guard-24 contacts with the end of-a-:slot-. I haveI found in;

practicethatv i affrotatingspeed-for the router of18-,000-` Ri P. M.: does the channelingpropeily, makingasmoothlypfinishedsurface.

VVliat'iIpclai-Irr is:

terminedlocations,and means adaptedto automatically holdV saidrracket against saidi-v j I Y n therein,aatabletofwhiehsaid-jigisfastened' 2.Router; apparatus' comprising, ajig:

shaped to fit aon the upper 4portion ofa racket bow head, said ljig y embodying-guide1 Imemworking.' position;-

3. Router apparatus comprisingA aufjig" shaped tojton .th'eupperiportion ofaLraek'et j bowheadasaid jig having slotetherein 'whichl Yextend between andiv slightly* beyond' holesdrilled in said bow head portion in predetermined locations, and means adapted to automatically hold said racket against said ig, said means comprising bow springs fastened together.

4. Router apparatus comprising a jig shaped to t on the upper portion .ofia racket bow head, said .jigghaving sltsathbreinvwhich extend between and slightly beyond holes A drilled in said bow head portion in predetercreases in thickness oris-= liigherfromthiefvi 5? Router apparatusflcomprising ai-.fjigyV shaped toiitionithefupper portion ofa racket bow head, said jig having slots therein whiichi extend; between and! slightly beyond holes drilled in-said bow'headfportifonr yin predetferf4 mined locations, and means i-adapted-.vto auto? c matically hold. said racketin aworkingg' posiif tion .against-,said i-jig-,`saidf means embody'ingg;

bow; springs fastened togethen" a conoaveff .ed

shaped.restI nemloer-on one ofE saidbowispringsfforlthe-racket-torestjon; w

6.- Router apparatus-f-4 comprising a-` shapedto. fit on 'the 'upperportionf ,ofl a racket.;

bow Yhe ad., said j ig4 having slots :therein which extend between and y,slightly beyondoe holesv drilled inasaid bow head portion-in prede?y termined lo cations and springme ans to automatic allyjhold said racket against-said. f

jigembody-ing agleverwhich is adapted when operated .tofcompress :said Isp ring,i-means.if l Y .7'.-Routen apparatus comprising, as jig, shaped. tor conform `to theiiippleroutside por-- f tion a'aaeket bow-head, a-ltableftjo.which-saidA out out' at ithei frontl .thereoffsaid jig, being);

andoyeruV said? .out-,out i portions.

8v-Router; apparaiuisr comprisingVS a? shaped to, conform .-to. the upper .outside fppr-.-

jig is 1 fastened; Asaidtable having,a-.po-rti'on.E

llO

tion of y a fracket :bbw head .and fhaving; slots having ranropeningf'gat the-g-front thereof-wide:A

enoughto-accommodate a racket bow head,

saidvj igebeing fastened @to saidftable at.each side. ofE 'said i opening and extending and Loverisaidv-.out-out piorti'onw.

V9i Router apparatus; comprisingA a shaped to conform to the upper-outside portion of a racket bow head-,anderhaving'gslts therein, atable towhgich saidl jig; is fastened having an opening at thel :fronti: thereof wide' enough to accommodate a racket bovv'hiead,"4 saidajig being? fastened to :said table -at'eaeh sidezof f said oper'iingg` andmea'ns adapted Altof automatically hold said racket. against-said@ 10. A router jig shaped to conform to outer'rupper portioni `of laaracketff bowl head,

abovef` guide members on o posite sides of said jig,

said jig having a p urality of slots therein extending between and slightly beyond holes drilled in said bow head portion at predetermined points.

il. A router jig shaped to conform to the outer upper portion of a racket bow head, guide members on opposite sides of said lig spaced apart slightly more than the wi th n, of said bow head, said jig having slots therein which extend between certain holes in said bow head and slightly beyond.

12. In combination a router and a router jig, said jig being sha ed to conform to the outer upper portion o a racket head, guide members on opposite sides of said jig, said jig having slots therein which extend be tween certain holes in said bow head and slightly beyond, said router embodying a guard adapted to go into and be moved in said slots, and a cutting bit extending beyond said guard.

i3. In combination a table and router apparatus, said apparatus comprising a jig shaped to conform to the upper outside portion of a racket bow head having slots therein which extend between and slightly beyond holes drilled in said bow head portion at predetermined points, said jig embodying guide members on opposite sides thereof spaced apart laterally slightly more than the width oi said racket bow head, said apparatus also comprising resilient means adapted to hold said racket in working position in said between said guide members and a lever to operate said means, said table having an opening at the front thereof wide enough to accommodate said racket bow head, said jig being fastened to said table at each side ot' 40 said opening and extending above and over said cut-out portion.

la. In working combination, a router and router jig, said jig being sha d to conform to the outer upper portion o a racket head, 4a guide members on opposite sides of said jig between which said racket is adapted to be inserted, said jig having slots therein which extend between certain holes in said bow head and slightly beyond, said router embodying a guard adapted to be inserted into said slots until it touches said racket bow head and adapted to be moved in said slots, and a cutting bit extending beyond said guard into one of said holes a distance equal to the depth of the channel desired to be cut between said holes.

HORACE W. HALL.

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