US1793308A - Valve grinder - Google Patents

Description

) Feb. 17, 1931. I p, ECKELS 1,793,308

VALVE GRINDER Filed Jan. 16, 1930 INVENTOR. .P. OQECKELzi '1 ATTORNEYS.

I grinding the valves and thus much time is Q5) fully explained in the following description,

to indicate the same" sev'eral views. g Y i 'Thedrawlngs showa sectlon of anengin-e Patented 17, 1931 'vALvE Gamb an My invention relates to valve grinders and more particularly to grinders for grinding valves of motor vehicle engines and aero plane englnes without removing the valves from the engines; and the object is to provive simple devices for grinding the valve.

and its seat simultaneously and to. devices which are adjustable to difierent sizes 5 of Valves. 'One advantageis that the valves are not dismantled or dis-assembled for 7 saved. Another advantage is thatthe grindmg is accomplished by simple manual opera,-

tion. Other objects 'andadvantages will be and the invention will bemore particularly pointed out in the claims. 7 7 1 Reference is had to the accompanying i Q drawings which forma part of thisapplication. r

Fig. 1 1s a'sectlon of an engine cylinder,

. showing the position of the valve and its i v seat'during operation and showing'in detall the valve grinding devices, partly in section. 25 i Fig. 3 is a I Fig. 2 is a plan view of the same.

grinders.

Fig. 4. is a section ofthe grinders and the of the protecting rollers. w

Similar characters of reference areused, parts throughout the arm carrylng the same and a section-of one valve casing and its seat 1 and .a valve 2 elevated therefrom to grinding position. The valve 2 is of ordinarytypev and the head thereof has the usual slot for use in the grindfor engaging the valve 2, and an oscillating dle or lever 8 rigidly'engages the chuck 4:.

V and a knob 9 has a swivel connection with the handle or lever 8." In operation, one

hand is placedon the handle 10 of the screw socket arms 11 radially ing operation. A screw driver'8 is provided chuck 4 is mounted on the shank of thescrew driver. The chuck 4 is supported in posi *tion on the shank 5 by a'collar 6 which is tendency to 'vibrateithevalve.

engages the 'knobi 9 for oscillating the chuck.

Thechuckl is provided'with a plurality v p 4 disposecb "flhe' grinding elements weenied bythe socket".

" UNITED ST A ES Y driver and thej other 11ml the operator f v arms 11'. The holders-for the grinders are. 3

divided into parts hingedly connected" to getherl" j The socket members 12 secured in thef'socket arms. 11 by set screws lB andithe grinder carriers' 14 farefadj ustably connected I tothe carriersl byhinged oints so" the grinders canfbe adjusted to valves and seats having difierent pitch '1 .Thus," there i double" adjustment for each pair. oiPgrind- .f

ers',' .I-'adi al for valves or difierent diameters v and vertlcal swlnging ad ust-mentsior valves havlng'd iierent"'p tchrry Y Eachicarrlerl 14 lis provided *w1th two "roll-' ers '15 andf 1 6 which resist the tension of the valvespring'sand'hold the 'distance between'i 7 each valve-andits seatconstant, that is; the

rollers hold the seatand the valve; at a fixed distande apart. The rollers 515 "and 7 16 I also relieve 'ffriction"by reason that "they roll a li ament-valv and its seatiboth: The plan view of the ad ustable grinders or f hones are carried by"; springs 17 thejca'rrier' l4 and secured therein-bypins 19.

Therhoneffioxoperates onith'evalveand the l i crates on the valveseat 22.3":Tl1e and 18 ihave the proper tension" hone 21 o pri 1 fOr hOlding-the 'h n 'sjagainst the surfaces N to begroun.d.

In operationfthe'screwdriver:3 is inserted while thechufck is being oscillated. The. op-

iandi l8 which hav'e'ftheir shanks i insertedin erator places one hand on the knob lQand holds the chuck. 4.1 in upright 'lposition and" places the other hand onth'e knob 9 -and oscillates'the socketarms and the grinders. There ,-'being-a pluralityof the sockets and grinders operating simultaneously, Ethere is not .inuch i What I'claim, 1's g q 1. 1A .valve grindercoinpr smg. a chuck dially disposed, 1 meansfori'rotatably mount;

ing said chuck. onavalve' headfcarrier arms rigidly connected to said socketarmggrind other grinding element adapted to' grind rigidly connected to said socket arms, '-1neans er carriers hingedly connected to said car-- rier arms, rollers carried by said grinder carriers for spacing'a valve fromits seat and pairs of grinding elements carried by said grinder carriers, one grinding element of each pair adapted to grind the valve and the the valve seat.

2. A valve grinder comprising a chuck provided With a plurality of socket "arnisradially disposed, means for rotatablymounting said chuck on a valve head, carrier arms for fixedly adjusting said carrier arms n said socket arms, grinder carriers 'hi'ngedly connected to said carrier arms, rollers operatively connected to said grinder carriers for spacing a valve from its seat, pairs of grinding elements yleldingly connected to said grinder carriers, one element of each pair being adapted togrind the valve and the other element adapted togrind the valve seat 7 3. A valve, grinder comprising a standard,

7 to :be fixedly connected to a valve, a chuck rotatably mounted on said standard, a collar rigidly connected to saidlstandard for supporting said chuck, saidcliuck having a plurality of socket arms radially disposed thereon, carrier arms lfiiredl y adjustable in said socket arms, grinder carrying arms hingedly connected to said carrier arms and provided to be fixedlyconn'ected to a valve, a chuck rowith for grinding the valve and its seat simuli taneously,and means for oscillating said chuck. I V

in testimony whereofil setmy hand, this tatably mountedon said standard and .pro-

vided With *a plurality of radially adjusti able arms,- means adjustalo'ly connectedto said v armsffor spacing a valve from its seat and carrying grinders .yieldinglyconnected there- 2nd day of January, 1930. V

v PAR-LO. EGKELS;

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