US2341030A

US2341030A - Glass cutter

Info

Publication number: US2341030A
Application number: US356026A
Authority: US
Inventors: Fletcher Arthur Terry
Original assignee: Individual
Current assignee: Individual
Priority date: 1940-09-09
Filing date: 1940-09-09
Publication date: 1944-02-08
Anticipated expiration: 1961-02-08

Description

Feb. s, 1944.

A. T. FLETCHER eLAs GUTTER Filed sept. 9L 1940 Patented Feb. 8, 1944 UNI-TED` STATES PATENT OFFICE .9.,31i1,030-- tjv u l GLASS CUTTER A rtllurf'ierry Fletcher; Bristol,v Conn; appiicanon. september. 9, 194:0, seria; No.v 356,026

21 clame 1to1. r9-52X My invention relates to glass cutters. s

It hasamong its objectsto provide Vani improved glass-cutter. Further objects are. to pro` vide an improved. cutter unit-for such cutters and] such a unit having improved means for posi tioningrand holding the same in av suitable holder i or support. Still another object i'sto provide an improved holder or support cooperating with my improved unitv inarr improvedmanner. Still further objects of myinvention are to provide such an-improved cutter unitA and improved holder or supporting means which are adaptedrtolusein either ordinary hand` operatedv cutters or in the-pillar posts of glasscuttingimachines.` T-hese' and other objects and advantages of mywimproved construction will, however, hereinafter more fully appear.

yIn the accompanying drawing, I have: for purposes of illustration certain embodimentsA which my invention may assume in practice Figure l is a topplan viewoia'hand-operat'ed cutter equipped withl my improvements;

Fig. 2is a side elevation of the same; 1 v

Fig. 3 is an enlarged perspectiveview show`r ing the parts of my improved cutter uni-tlii'il spaced relation ready` for assembly;

Fig. 3a is aside'elevationof thetip part ofthe unit shown in Figure 3 ona smaller scale; A

Fig. 4 is a perspectiveviewsimilar to Figure 3 but showing the parts when in assembledrelation; Fig. 4a is a side elevation'of the unit shownin- Figure 4 on the scale of- Figure 3a; Fig. 5 is a perspective'r view of the working' end oi a holder having my improved `unit 'inf operative position thereon, one end ofthe coop-` erating tool being shownindottedlines in' the Vposition occupied thereby in inserting or removing the unit; v

Fig. 6 is a like perspective viewshowing theunit spaced from the 4end Aof the holder, the'tool being also indicated indotted lines in position in the unit; y Y

Fig. 7 is a side elevationof the tool; Fig. 8 is -a verticalsectional view of a pluralityof my improved units in feeding relation in' air pillar post of a-glass cutting machine, and

Fig. 9 is a transverse sectional viewon linel S-U'of Figure 8, the scale being enlarged.

Inthe illustrative construction Vshown in Fig ures 1 to 6, I have shown a usual holder I`,

vadapted to'be grasped in the hand, and having my improved glass: cutting unit; genezallylindi-v cated 'atf 2, removably carried in its'working end;

lOl

shown this unit andthe working endv of the holder ber ingof an improved construction and being adapted. to enable the use of an improved unit in ser-t-` ing. and removing tool, vgenerally indicated at 3; all. as. hereinafter more fully described. Referring'more particularly to the' unit` 2, it will"y be observed that the'sameincludes awheel; carrying wire clip or so-called .tip? 4 and a coopr.vv eratingV frame 5, each of which is of improved. construction and operatively connected in an im'l proved manner. toV the other, tolform thev im-l proved unit .2. As' shown,.a cutter wheel 6 of usual construction is journalled on across por-f tion .l of a U'sl'iaped wire-clip or tip havingz..

longitudinally extendingV wire 'side'4 portions '8- eX.`

tending rearwardlyiromthis cross-portion and. theseportions 8v suitably angularly off-set relative.to.one another asshown; for example; in` Figure 3c'. The frame 5 is also'U-shaped, but formed of' sheet metal and of such maximumwidth as to tsnugly between the portions 8 while' permitting. the wheely to,` rotate freely ini the open end of theffijame. Theframe is also disposed with its -open' end toward the cross porftion! 1 of the tip ll,.andisI provided withfoppof site' longitudinal slotsv 9 in'` its end adjacent the` latter, which arefadapte'd to'. project betweenthey wheel 6 and side portions 8, and receive ,the crossportion 'lon opposite sides of thewheel 6i.- Further, .the oppositeor closed'end of the frame Ef'is provided with a transverse slot It] of'suilel cient .widthto receive the angularly: oi-setvex-` tremities l off the side portions 8(l5igureg4cv)` and` in which these extremitiesxare bent'later-v ally when the Ueshaped tipfh'as been assembledi with its cross portion 'l engaging the` ends' ofv the slots 9; the'tip 4 with the'wheel 64 thereon? preferably being formed-initially as showrrinl Figure 3, i. e;, with its portions 8 angularly dis--v posed, an'dthereaiter having these portionsbent` flat into contact with thesides' I21of`the`ira'me" 5 and their extremities Il'bent-into the slotlll,4 as shown in Figurev 4;

A kAs a result offthis construction thewiretip.: l and' frame 5 not onlyf cooperate"t o\.p'rev'ent longitudinal movement of either relative 13o/the'l other, but each cooperates to brace the other,y ini such manner as to producen a construction which provides an effective journal iol.r the wheelv 6' without causing binding thereof.v Further', it willlbe noted fthat' both the Iframe"` 5 and thefside"` portions of the tipv .4"provi'deeffective rlor1`gi" tudina'll'yv 'extending guidingportions` which mayf bev'eryaccuratelyfformed'and which are; ac-n l' cordingly',` adapted to cooperate-in positioning the? unit in a suitable support, all while the construction remains exceedingly inexpensive. Of these, however, I rely upon the olf-set portions 8 to hold the unit against dropping out of grooves in the holder, the off-set relation of these portions to one another enabling them to engage opposite walls of opposite grooves with sumcient friction to prevent the unit from dropping out of the grooves, as hereinafter described. Attention isvalso directed to the fact that an unobstructedivertical space yI3 is provided between the wheel 6 and the closed end of the frame 5,

in such manner as to receive a kcorresponding 4,

straight portion I4 on a new and convenient unit handling tool 3, the use of which markedly fa-y cilitates the handling, insertion and removal of the very small unit 2, Referring to the holder I, it will be observed that the latter is provided with a transverse or vertical slot I6 in its front or working end and with 'longitudinal or horizontal slots I1 in its' opposite ylongitudinal sides and which open into the slot I6 near its top .and lead through the front'edges of the walls of the slot I6 near the junction oi the sloping end Ia, Ib of the holder. O'f theseslots, the slot I6 is adapted to receive thezunitt 2 vwhen inserted longitudinally therein withfthezportions 8 opposite the slots I1, while theselslots I1 are adapted to deflect and frictionally engage the oli-setside portions 8 when theunit is thus longitudinally inserted; the closed end `I8 of frame 5 also abutting against the closedvertical en'd I9 of the slot I6 when the cutter wheel 6 is incuttnig position at the front end of the-"holder as illustrated in Figures 1, 2 and 5. Here,l attention is also directed to the factzthatthe unit 2 is thus very securely positio'ned frictionally in the Aholder by the friction of theportions-B against opposite upper Vand lower` side surfaces of opposite slots I'l by the dierent oli-set portions 8, all without requiring the provision of any additional spring means and without requiring any means either on the holder. or on the unit which extend beyond the, Further, the cutter:

inner wall ofthe slot I6. wheel is the .only protruding portion of the unit,

the frame `5 and portions 8 being wholly within.

thelimits of the slots I6 and I1, so that thereare no fprojections. Moreover, it will be `observed thattlthe structurev of the holder is such as to' facilitate defthandling of the tiny unit with awtool, asv distinguished from markedly more clumsily with .the liingers;'the slot I6 extending clear. through the holder transversely, in such manner as to enable the tool 3 to be received when its portion I 4 is projected through the opening yI3 in therunit from either the top or bottom, and also enabling this portion to be projected through this aperture to any desired extent without conflicting with the holder. Thus, obviously, the unit may berassembled in the holder with the parts in the relation shown in Figure 6, and, when assembled, the parts may be separated when in the position shown in Figure .5,

while, if desired, the same may also be assembled or separated by inserting the tool from beneath therunitpl .'.In:Figures 8 and 9, I have shown a seriesl of my `improved units 2 ln superimposed vertical feeding relation in an elongated magazine' or chamber in a support in the form of a pillar posty 2| ofa machine cutter. In this construction, the units and their cooperating slots in the support. are essentially similar to the construction `previously, .-described. Here, however, j the n several units 2 are disposed in superimposed rela tion in chamber 20, herein rectangular and corresponding to the slot I6, while the opposite oirset side portions 8 on the units 2 are deected and act as heretofore frictionally on opposite walls of opposite slots 22 in that chamber at right angles to the latter and corresponding to the slot I1. Obviously, with the portions 8 of the units frictionally engaging opposite walls of opposite slots 22, and the. latter tending to hold the units frictionally in the relationy shown in Figure 8 and each unit having its wheel 6 at the bottom, the units may be fed downward successively into their bottommost or operative position at the open end of the chamber 20, while being guided in the downward movement and held frictionally 'in any position in the post, including this operative position. Here note also that a suitable abutment is also provided, as, for example, a screw 23 rotatable in a threaded aperture 24 `an'd having flats25,the'bottom one ofY whichengages the top of the top unit and thereby4 holds all the units against longitudinal` upward movement the `chamber 20 when the` bottommost wheel is being; pressed against the drawn and a new unit 2v is pressed down froml the top in such manner as thereby to cause theA bottommost unit to be ejected and the next unit above the same to be moved down into voperative position, whereupon the screw l23 is again inserted.

f kAs a result of my improved construction, my improved unit is adapted to be very securely held in position in the support by the portions 8 without requiring the use of any additional holding springs.` My improved support also cooperates electively in holding the units while also enabling the unit to be very readily inserted or removed. Further,-attention is also directed to the minimum amount l,of material and minimum number of parts, and lfurther to the minimumnumber ofgoperations required to produce myimproved construction, -which enables-the latter to, be very'v inexpensively manufactured, both as regardsvthe unit and the holder. It is also made possible, due to the denitepositioning ofthe unit in the support, -toreduce ,the wear on Iboth the unit and support, while any loss of effectiveness due toA fatigue of the meta1 is minimized, Moreovenrmy improved construction isY very convenient in use and adapted; tov'cooperate in an improved manner with a handling tool, and to bervery deftlyy handled and markedly morevquicklyinserted and removeddwithsuch a tool, than is possible with the iingers.- On the other hand, if a special tool is not available, a knife will serve admirably, fthe unit -being securely positioned en the Apoint of any'sr'nall-blade inserted in the position indicated y forjthe tool end I4 and such a blade being adapted to be slipped between the wheel andthe iadjacent side'of the frame V5.; All need for projecting journals orthe like, Yon which the hands are apt to be injured, is also-eliminated atthe same, time that-all need for sets of cross slots cooperating with Asuch protruding ends or for addi'A tional material projecting beyond the vertical groove in the holder is eliminated. My improved unit and my improved cooperating receiving and` guiding means therefor is also equally well adapt-v4 ed tov useH in hand-manipulated cutters Y and inthe;- pillar posts. pf glass. cutting macheeseand,

improved unitmay thus be positioned and fed in a magazine in awholly new manner. These and other advantages of my improvements will, however, be clearly apparent to thosey skilled in theart.

While I have in this rapplication specifically described certain embodimentswhich my invention may assume in practice, it will be-understood that the same are shown for purposes of illustration and that my invention may be modified and embodied in various other forms without departing from its spirit or the scope of the appended claims.l

What I claim as new and desire to secure by LettersPatent is: a I

1. In a glass cutter unit,l a frame having longitudinalr sides and havingv a cutter Wheel journalled in one end of said frame, and also having outer longitudinal guidescarried by said frame on opposite sides thereof and on outerA faces of said longitudinal sides and projecting laterally from and extending along said opposite sides of said irarne.`

2. In a glass cutter unit, a frame having longitudinal sides and having a cutter Wheel journalled in one end of said frame, and also having resilient longitudinal guides projecting laterally from and extending along opposite outer sides of said frame, the sides of said framev also having edge portions above and below said guides.

3. In a glass cutter unit, a frame having longitudinal sides and an open end', and a cooperating member carried on said frame and having a cutter wheel journalled `on said .member and rotatable in the open end of said frame and having longitudinal guides angularly off-set relative to one another, and also extendingfalong outside opposite outersides of said frame.

tudinal guides comprising wire sections having their rear ends bent into said slots.

. 8. In a glass cutterunit insertable in a holder, a U-shaped frame, and a. cooperating member having a cutter Wheelv journalled thereon and rotatable in the open end of said frame, and also having outer longitudinal guides extending along outside opposite sides of said frame, said frame havingslots in its front Yand rear y,ends and said guides comprising; longitudinal Wire sections extending into Vsaid slots at their opposite ends.

9. In a glass cutter unit insertable in a holder, a U-shaped frame havingcaslotted open end, and a U-shaped Wire clip fixed to said vframe and having a transverse journal portion carrying a cutting wheel and disposed in the slots in the open end of said frame and also having longi-l tudinal relatively angularly off-setside portions outside ther sides of said frame. i

10. In a glass cutter unit insertable in a holder, a U-shaped frame having slotted closed and open ends, and a U-shaped Wire Aclip having a transverse` journal portion carrying a `cutting Wheel and disposed in theslots in the open end of said framey and also having longitudinally extending side portions extending along outside the sides of said frame and having ends bent into the slots in the closed end thereof.

- 4. In a glass cutter unit vinsertable in a holder, l

a Ushaped frame, and a cooperating reversely disposed U-shaped member xed thereto and having a cutter Wheel journalled on the closed end of said member and rotatable in the open end of said frame, and also having outer longitudinal guides extending along outside opposite sides of said frame.

5. In a glass cutter unit insertable in a holder. a U-shaped frame, and a cooperating reversely disposed U-shaped member having a cutter wheel journalled thereon in the open end of said frame, and also having outer longitudinal guides extending along outside opposite sides of said frame, said U-shaped frame being sheet metal and said Ushaped member comprising a wire clip having spaced side portions carried on said frame.

6. In a glass cutter unit insertable in a holder, a frame having longitudinally extending sides and an open end, and a cooperating member having a cutter Wheel journalled thereon and rotatable in the open end of said frame, said cooperating member having outer longitudinal guides extending along outside opposite sides of said frame, and said frame having slots in its open end and said cooperating member also having a transverse wheel carrying portion between said longitudinal guides and engaging in the ends of said slots.

7. In a glass cutter unit insertable in a holder, a U-shaped frame, and a cooperating member having a cutter Wheel journalled thereon and rotatable in the open end of said frame, and also having outer longitudinal guides extending along outside opposite sides of said frame, said frame having slots in its closed end and said longi- 11. In a glass cutter, ,a support having a passage open in one direction to receive a cutting unit and also having open ended `grooves open,- ing in said directionetc receive unit guides and in opposite walls ,oiv said passage, and a cutter unithaving a frame received in said passage and also having guides projecting laterally from said frame and received in said grooves and extending longitudinally of said frame outside the latter, and a cutter wheel journalled on said frame between opposite sides thereof and at one end of said guides.

12.- In a glasslcutter, a transversely slotted support havingbpposite longitudinally extending slots therein, and a cutter unit having a frame in the transverse slot in said support, a transverse journal at the outer end of said frame, angularly off-set longitudinally extending guiding portions projecting laterally from said frame and disposed in the longitudinal slots in said support, and a cutter Wheel on said journal, said portions being deected by and engaging in said longitudinal slots to restrain said unit against unintentional movement relative thereto.

13. In a glass cutter, a transversely apertured and longitudinally grooved support having an inner end Wall in the transverse aperture therein, and a cutter carrying unit in the transverse aperture therein having guides insertable and removable longitudinally in the longitudinal grooves in said support and carrying a cutter Wheel atits front end and having a closed inner end engaging the inner end wall of the transverse aperture in said support and also having a transverse aperture between said Wheel and said closed end.

14. In a glass cutter, a transversely apertured and longitudinally slotted support having an inner end wall in the transverse aperture therein, and a cutter carrying unit in the transverse aperture therein having guides insertable and removable longitudinally in the longitudinal slots in said support and carrying a cutter Wheel at its front end and having a closed inner end engaging the inner end Wall of the transverse aperture in said support and also having a trans-.-

verse aperture betweensaid wheel .and said closed end, saidwtransverse aperture in lsaid support comprising .a :slot having Asaid.longi tudinal slots inv its-sideiwalls and openv atits opposite ends and-providing access for axtool to the transverse aperture Iin said unit from said opposite ends.y i .y

15,-Ina` glass cutter, a transversely. apertured and longitudinally grooved support-.having an yinner end Wall'. in .the-'transverse aperture therein, anda cutter. carrying unit in the transverse aperture therein having guides insertable and removable longitudinally in the longitudinal grooves-in said 1support1andf. carrying va cutter wheel at its front end andihaving. a closed inner end engaging the inner end- Wall of the transverse aperture in said support and also having a transverse aperture between; said Wheel and said closedv end; said` guides being relatively angularly offset and engageable with and deected by the Walls of said longitudinal grooves to retain said unit in position in saidl support.-

16. In a glass cutter, a lpost Ihaving an elongated chamber therein havingianlopen end, a series of cutter units Vin superimposed position in said chamber, and cooperating unit guiding and positioning means for lenabling said units to be successively fed through said chamber to said open end and successively maintained in operative position in said open end. v

17. In a glass cutter, a post having an elongated chamber therein having an open end and grooves in opposite Walls of said chamber, and a series of superimposed cutter units' in said chamber and successively movable through the l latter into an operative position' in said open end and each having guiding and positioning means cooperatingwith said grooves and a cutter Wheell at the same end of each unit.

18. In a glass cutter, a post having an elongated chamber therein having an open end and grooves in opposite walls of said chamber, and a Series of superimposed cutter units in said .19." In a. glass cutter, a pillarHpost-havingla longitudinal chamber adapted; toreceive a plurality; of cutter. -unitsfin i superimposed position therein and having an openiend-invwhichjthe bottommost unit is disposable in operative` posi-` tion, and also having longitudinal slots on opposite walls of said chamber leading to said open end and adapted to receiveguide portions on said superimposed units and successively direct the. latter into said operative position as said units are fed longitudinally through said chamber;A y t '20. In a glass cutter, a pillar post having a longitudinal chamber adapted toreceive a plu rality of cutter units in superimposed position therein and having an open end in which the bottommost-unit is disposable rin operative posif tion,` and also having `longitudinal slots ontop-v positevvalls of said chamber leading to said openl end and adapted to receive guide portions on said superimposed units and successively direct the latter into said operative position as said units fare fed longitudinally through .said chamber, said chamber alsa-having `a ltransverse aperture therein and unit positioning means adjustable in said aperture.- f.;

21. In a glass cutter, a support having ,a 'vertical slot in its forward end and longitudinal horizontalslotsI intersecting the vertical slot and extended rearwardly past the vertical slot, anda cutterk unit comprising an axled -cutter located inthe verticalv slot and acutter carrier engaged in the horizontal slots.v -v

l K ARTHURTERRY FLETCHER.