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uMarCh 1, 1938.
Y
J, E'. SHEAFFER
2,110,030
MATRIX GRINDING AND MARKING MACHINE
Filed April 14, 1957
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ATTORNEYS
March 1, 1938'.
J. E. SHEAFFER
2,110,030
MATRIX GRINDING AND MARKING MACHINE
Filed April 14, 193'?
4 Sheets-Sheet 2
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ATTORNEYS
March l, 1938.
J. E. SHEAFFER
2,110,030
MATRIX GRINDING AND MARKING MACHINE
Filed April 14, 1937
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4 Sheets-Sheet 3
O
ATTO R NEYS
March l, 1938.
„1_ E_ SHEAFFER
l2,110,030
MATRIX GRINDING AND MARKING MACHINE
Filed April 14, 1957
4 sheets-sheet 4
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ATTORNEYS
Patented Mar. 1, 1938
2,110,030
iTED STATES PATENT OFFICE
2,110,030
MATRD( GRINDING AND MARKING
MACHINE.
John E. Sheaiïer, Louisville, Ky.
Application April 14, 1937, Serial No. 136,943
(Cl. 51-110)
7 Claims.
provide a ratchet gear 8. A worm gear 9 is se
cured on the hub ‘I and also located on the latter
is a cam supporting plate I0 engaging one side
of the worm gear. A spacing collar II is thread
This invention relates to machines especially
adapted for reconditioning matrices and marking
the latter for identification so that they may be
readily distinguished from other matrices which
5 have not been reconditioned.
The primary object of the invention is the pro
vision of a device of the above stated character
ed on the hub ‘I into engagement with the other
side of the worm gear. Supported by the plate
I0 and journaled on the hub is a cam I2 of a .
selected shape. A spring pressed dog I3 is piv
for reconditioning matrices by grinding the out
oted on the cam and normally engages with the
ratchet gear to establish a drive between the hub 10
'I and the cam. A release mechanism I4 is jour
naled on the head 4 and may be positioned to
engage with the dog I3 to disengage the latter~
from the ratchet gear when desiring to disrupt
the drive between the hub ‘I and the cam. The
» side walls of said matrices to remove therefrom
crevices which íill with metal when molten metal
is shot into the matrices and produce hairlines
rendering reading matter with a fuzzy appear
ance.
With these and other objects in view, this in
vention consists in certain novel features of con
release mechanism I4 is capable of being rotated
in two directions, one in engagement with the dog
to hold the latter disengaged from the ratchet
struction, combination and arrangement of parts
to be hereinafter more fully described and
claimed.
gear and the other into a position to free the dog
to reestablish the drive between the hub 'I and
the cam. The release mechanism I4 when posi
tioned to disengage the dog I3 from the ratchet
For a complete understanding of my invention,
20 reference is to be had to the following description
and accompanying drawings, in which
Figure 1 is a top plan View illustrating a ma
chine for reconditioning and marking matrices
and constructed in accordance with my invention.
25
Figure 2 is a vertical sectional view illustrating
the same.
‘
Figure 3 is a bottom plan view partly broken
away to show the ejector and stamping mecha
nisms.
Figure 4 is a plan view showing the grinding
mechanism having the head of the machine re
moved.
-
Figure 5 is a sectional `view taken on the line
5-5 of Figure 2.
Figure 6 is a sectional view taken on the line
Eì--ö of Figure 2.
Figure 7 is a sectional view taken on the line
'F-'l of Figure 6.
Figure 8 is a sectional view taken on the line
8-9 of Figure 1.
Figure 9 is a fragmentary sectional view taken
on the line 9_9 of Figure 2.
Figure 10 is a fragmentary sectional view show
ing a portion of the grinding element and a part
of the track with the matrix presser therein.
Referring in detail >to the drawings, the numer
al I indicates a base on which is mounted a casing
2 including removable sections indicated by the
character 3 to give access to the interior of the
50 casing. The upper end of the casing is closed
by a removable head 4 and secured in the casing
is a bracket 5 cooperating with the base I.in
supporting a vertically arranged post S on which
is journaled a hub 1, a portion of which is ex
55
ternally screw threaded and aportion is shaped to
gear 8 moves said dog into engagement with a
stop I5 on the cam.
The release mechanism I4 has spaced notches
I4’ to be engaged by a spring pressed dog I5’ for
releasably holding the release mechanism in
either of its positions.
Supported by the base and detachably secured
_to the latter is an electric motor I6, the shaft of
which is geared to a shaft I'I, the latter being
suitably mounted in the casing 2 for rotation.
A worm I8 is secured on the shaft I'I and meshes
with the worm gear 9. 'I‘he shaft of the motor
I6 also has secured thereto a circular grinding 35
element I9. The electrical feed conductors for
the electric motor I6 are indicated by the charac
ter 20 and may be connected in any well known
manner to an electrical output and include or
have connected therein a control switch 2| oper
able from the exterior of the casing.
The head 4 is provided with a chamber 22 in
which operates the grinding element I9, an ejec
tor mechanism and a stamping mechanism.
The
ejector mechanism and stamping mechanism will 45
be hereinafter described in detail. The head 4
has a slot communicating with the chamber 22
in which is mounted a housing 23 including a
magazine or hopper 24 and a track or guide 25.
Matrices are stacked in the magazine 24 and are
ejected therefrom one at a time onto the track
which guides said matrices into engagement with
the grinding element I9 and past said grinding
element into a chute 2B forming a part of the
housing 23. 'I‘he chute 2B includes inclined
2.
2,110,030
guides or tracks 21 connecting one end with one
started through the manipulation of the control
. end of the guide or track 25 and the other end of
said guide or track 21 terminates above a re
mechanism I4.
The magazine 24' has a slidable gate 38' which
may be adjusted relative to the track 25 and
cooperates therewith in permitting only one ma
trix to be ejected by the ejector from the maga
zine onto the track at atime. The gate 38 being
adjustable vertically is for the purpose of varying
thesize of .the space between itself and the track
ceiving tray or box. A spring actuated presser
29 operates in the housing 23 and cooperates
with the track 25 in slidably supporting the mat
rices and to urge one at a time into engagement
with the grinding element I9.
A portion of the
track 25 under thepresser 2_9 isÍ cutaway-so that
10 a face ofla matrix >will‘be brought >`into;[engage
to. _accommodate matrices of different thick
.ment with the grinding element i9. The presser nesses. y The gate is adjusted vertically in either
23 is of sectional formation with the sectional». 3 direction by a hand operating means 39 and the
loosely connected.
upper end of the gate is provided with a shoulder
An ejector 30 is slidably supported intheih'oiis
40 cooperating with a ñange 4l on the magazine
15 ing 23 for the purpose of ejecting the lowerrnos .
`tofform a gage.
10
The use of the gage is for the
matrix of the stack of matriceslocatedin.the,_¿. Kpurpose of bringing about the adjustment of the
magazine 24 into the guide or track"2`5'. YThe gate >to form a space between itself and the track
ejector has a finger piece 3îlf operating in'ïa'ïslot Í ofira- size inacoordance with the thickness of a
32 formed in the housing 23 and also secured. to. particular. or selected matrix. By positioning
20 the ejector is a post 33 carrying a roller‘z3`4` which ' a'selected‘matrix on the flange 4l and bringing 20
rides? on the camy l2. A lever 351is‘pivoted on thelshoulder 44 in engagement therewith will
the head> 4 and- one kend has connected» thereto
aY coil spring 36 and the other" end' ‘has »pivoted
theretol a link' 3l and the latter is pivotally con
25 nec'ted- on the ejector: The spring 36A actsy 1z0-drive
the ejector when permitted.` by the cam.V The
cam actsk to retract the ejector againstY the’v action
of the'spring 36, that is; the’high face of the cam
retracts the ejector‘and' asÍthe roller 34 ofA the
30
post_33 >passesv oiï’ of the high face oí the carri
the spring 36 drives the ejector to Àfc'irce‘the’l'ow
ermost ’matrix'intothe-- track Èorgui’d'e 252. "It is
to be `understood that when 'the ejector ïisrnoved
35
intov a retracted position it moves'fromrunder
the lowerrnost matrix in the magazine to become
bringiabout‘an. adjustment of the gate relative
to the >track to form a space only large enough
to permit theV selected` matrix t0 .pass from the
magazine into the track by the ejector and one 25
at a time.
V
,
'A marke'r42 is slidably supported by the guide
or Vtrack 25 directly under the magazine and is
connected toV a slidablel head 43 carried by the
head' 4?.'1`A plate 44 is: connected to the head 43 30
and'one end thereof is pivoted to the head. 4,
as shown( at 45. >The plate 44- has a slot 46
through which extends a pin 41 carried by the
engaged withvone endof said lower'mo'st matrices
head'4 for limiting the pivotal movement oi the
plate. A coil spring 48 is connected to the plate 35
44 and tothe head 4 Vand acts to retract the
so that the ylatter lwillbe’"shoved'linïto the ftrackv
or _guide- 25 when the'cam releases the ejector.
marker 42 out of the path of a matrix in the
guide or track 25. An arm'49 is secured on the
It takes one complete revolution of` the cam`to
retract the yejectoruan'd to releasel theà latter vfor
shoving the lowerrnostfmatrix in the magazine
into _the track or guide 25. `The matrix when
moved into the track or guide‘25 by the’n ‘ejector
clearsmitself- from the remaining matrices *so that
45 the .next matrix comes to `rest upon the ejector
and as the latterA moves into a retracted position
said last-named matrix then .becomes engaged
plate 44v and is engaged by a cam 52' secured on
the cam` I2v and is Valso engaged by a pivotally 4.0
mounted lever 56 one end of which has connected
thereto a”- coili spring 5|’ and the other end is
provided with» an adjustable'pin 52 engageable
withïthe head 4 and' acts to limit the movement
of the lever 50 under the action of the spring 5l. 45
The spring 5l acts to drive the plate 44' in a di
at one _end .with theA ejectorr The ejector Ion, its
rection to force the marker 42S to travel in a di
rection for' marking the lowermost matrix in the
next operation. forces thek latter-namedjgmatríx
magazine 24. As the arm 49 rides oiî of the cam
50 into the. track or. guide` 25' causinglethe first
ejected matrix to yprogress ya'longthe'Í _track 'or'
52', the‘lever 5U is swung on its pivot with con 50
siderable force by the spring 5|. The swinging
guide. ,This operation continues as long as'the
machine .isin yoperation and the magazine con-g
tains matrices.' v.As the matrices advance >along
55 the track. or guide 25one at atimecomes incon
engaging the head 4. ’I‘he lever 50 beingv in en
gagement withthe arm 49 when the latter dis
engages the cam 52’ swings the plate `4,4 on its 55
tact. with thelgrinding element _t9 to vhave the
movement of the lever is checked by the pin 52
pívot” 45 with considerable’force carrying there
with the head l43 and the marker 42. The plate
outsidewalls thereof` dressed lto remove imper
fections. „As the matrices, areldressed they pass ' 44V_mayl continuerto travel under its momentum
into vthe chute 26 and thence intothe tray 28 after the checking of the swinging movement of
60
and arranged inthe latter infastackedfformaj the` leverjß. The marker 42 engages with the 60
matrix’during the time thatthe plate 44 is swing
tion- and each- disposed vertically. ,-Thisjs accom
plished by -a mechanism whiclrwül be herein-A ingnunder its momentum so that the marker will
receive >a hammer-like blow which is sufficient to
after more fully described in detailrfl'hemag
bring about marking of the matrix. A stop 54
65 azine 24 is of.»a size» to accommodate thematrfices is secured' on the plate 44 and may be engaged by
of `a font and‘also three or more _dudsfshapedY
similar to a- matrixß; >The purpose ofthe duds is av control'mechanism 55 carried by the head when
to bring `about the complete feeding oi.L all-- of thev itis desired to hold the marker 42 in a retracted
matricesthrough rthe machine into the `tra-:V28 or inoperative position.
. AIt is to be understood that the control mecha
and as' Ithe last‘matrix' Ireaches ’ the tray' 28'“ the nism 55 isroperable from the exterior of the head
duds'a'rè then within'the machine" or ther track so'thatthe marking mechanism can be rendered 70
25 thereof' and' willhbe forced therefrom by the operative and inoperative when desired. The
next’run or' lc/iatchv of matriceshactedfonfbïy the purpose of marking the‘matricesis so that they
machine. #Ijlieopération ofv the ejector with theu can be `identiiied after being. reconditioned from"electric motor yHi running can *be stopped’and
matrices which have not been" reconditioned.'
2,1 10,030
3
The box or tray is slidably supported, as shown
at 56', and is adapted to receive the matrices as
they are reconditioned, they being stacked there
in and each disposed vertically. Located just
above the tray 28 are spring fingers 5l’ adapted
tail is employed. To recondition matrices of a
certain size one of the matrices is placed between
the shoulder 40' of the gate 38 and the flange 4I
and the shoulder brought into engagement with
to engage the matrices as they enter the tray. A
so» that matrices of this size or thickness will -be
fed one at a time from the magazine into the
follower 58 operates in the tray with a sliding
movement and is connected with a slidably
mounted plunger 59 on which is journaled a roll
er 6D.
The roller 60 rides the cam I2 for the
purpose of reciprocating the follower 58. Each
time a matrix is received in the tray the follower
58 is reciprocated for the purpose of advancing
the tray endwise permitting the matrices to stack
in the tray one behind the other with the fol
lower and fingers 5l’ cooperating in maintaining
the matrices in stacked position. Each time the
cam I2 completes one revolution a matrix is de
posited in the tray and consequently the follower
58 is reciprocated once on each revolution of the
cam I2 to bring about an advancement of the
tray in an endwise direction to provide a space
for the reception of the following matrix. As the
tray 28 is advanced on the stacking of matrices
therein some of the matrices stacked within the
tray will become disengaged from the fingers 51’
however they will maintain their vertical posi
tions by the upright walls of the tray and the
matrices stacking therebehind and still in en
30 gagement with the fingers 5l’. The tray 28 can
be easily removed from its support after com
pleting a run- or reconditioning of a group of
matrices so that the matrices reconditioned can
be easily emptied or removed from the tray. The
plunger 59 is spring pressed to maintain the roll
er 60 thereof in contact with the periphery of the
cam I2. The follower 58 includes the slidably
supported head 6I to which is secured a plunger
62 of the spring pressed type and secured to the
40 plunger 59 is an arm 63 having contact with the
plunger 62 so that when the plunger 59 is moved
by the cam to advance the follower 58 a drive is
45
50
55
60
established by the arm 63 from the plunger 59 to
the plunger 62.» One end of the tray is fully open
so that said end may ride past the head 6I of the
follower when the tray is removed or replaced in
position on the machine.
The housing 23 has formed therein an air pas
sage 63’, one end of which is connected to a
valve 64 located exteriorly of the head and the
other end is connected to a nozzle 65. The valve
64 may be connected to an air supply (not shown)
by a pipe 66. The nozzle 65 is for the purpose of
directing air under pressure across the face of
the grinding element to remove from the grinding
element grindings. As the grindings are blown
from the grinding element they pass through a
port 61 in the head 4 and into a collecting bag
68, The air is turned on by opening the valve
64 and may be cut off at any time desired by
closing the valve.
the matrix, thereby properly adjusting the gate
track 25 by the ejector mechanism. After the
setting of the gate the matrices are stacked in
superimposed relation in the magazine 24. The 10
motor I6 is then started, the control mechanism
III first being positioned to render the ejector
mechanism inoperative. After the motor has ob
tained its full momentum the control I4 is ac
tuated to connect the cam I2 to the drive between 15
the latter and the motor. The cam I2 being in
operation ñrst operates the marking mechanism
to mark the lowermost matrix in the tray and at
the same time the cam retracts the ejector. After
the marking of the matrix the cam releases the 20
ejector which acts to shove the lowermost ma
trix just marked into the track or guide 25. This
same operation continues consequently advancing
the matrices along the track and as each matrix
arrives at a certain place on the track a face 25
thereof comes in contact with the grinding ele
ment so that one of the outer walls is ground to
remove crevices therefrom. The matrices being
advanced in a step by step movement will, after
a certain amount of grinding, move onto the in 30
clined guide 2l and pass therefrom into the tray
28. The matrices being stacked on end in the
tray 28 as they are received therein and as each
matrix enters the tray the latter is advanced end
wise to provide a space for the following matrix. 35
When first assembling the matrices in the maga
zine 24 a plurality of duds are added to the stack
so that said duds in passing through the machine
will exhaust from the machine into the tray all
of the matrices which have been stacked inthe 40
rack. After the passing and reconditioning of
one side wall of all of the matrices they are re
moved from the tray 28 and turned over and re
positioned in the magazine 24. At this time the
marking mechanism is rendered inoperative by 45
manipulating the control 55 so that said matrices
will be again passed through the machine in a
step by step movement by the ejector receiving
necessary additional grinding on both walls to re
50
move crevices and defects therefrom so that the
matrices when again received in the tray will
have been ñrst marked for identification and
then reconditioned, that is, both outer walls re
reconditioned by having crevices removed there 55
from rendering said matrices in proper condition
for further successful use.
What is claimed is:
1. A machine for reconditioning matrices com
prising a supporting structure, a track carried 60
by said structure and including a magazine for
Linotype machines and other line casting ma
chines employ matrices of different thicknesses,
however, the matrices of the same thickness are
65 segregated and kept in fonts and after they have
receiving matrices to be fed one at a time onto
been in use for a period of time the outer walls
become damaged or have crevices formed therein
and these crevices become filled with metal when
the matrices are shot with molten metal and
which creates hairlines. Heretofore, matrices
becoming so damaged or worn have been discard
ed and in order that matrices damaged in the
by step movement along the track, a power means
carried by the supporting structure, a marking
mechanism carried by said supporting structure
manner described may be reconditioned and ren
dered fit for further use my machine as shown in
75 this application and heretofore described in de
said track, an ejector mechanism for ejecting
matrices one at a time from said magazine onto
said track and to advance said matrices in a step
for marking the matrices one at a time carried
by said magazine and prior to being advanced
from the magazine onto the track by said ejector
mechanism, and a drive means driven by said
power means for operating the ejector mecha
nism and the marking mechanism, a grinding
mechanism operated by said power means to act
75
4
2,1 10,030
onsaid matrices as advanced into a certain posi'
tion onto 'the track by the ejector mechanism.
2. rA machine for reconditioning matrices com
prising a supporting structure, a track carried
by said structure and including a magazine for
receiving matrices toabe fed 'one at a time onto
said track,; Van ejector mechanism for ejecting
matrices one at a time from lsaid magazine onto
said'track and to advance said matrices in a step
by step movement along the track, a power
means carried by the supporting structure, a
marking mechanism carried by said supporting
structure for marking the matrices one at a time
carried 'by said magazine and prior to being
15 advanced from the magazine onto the track by
said -ejector mechanism, a drive means driven
by said power means for operating the ejector
mechanism and the marking mechanism, a
grinding mechanism operated by said power
means to act on said matrices as advance-d into a
certain position on the track by the ejector mech
anism, and means receiving the matrices after
being marked and acted upon by the grinding
mechanism and to arrange them in stacked for
25
mation.
`
'
`
3. A machine for reconditioning matrices com
prising a supporting structure, a track carried
by‘ said structure and including a magazine for
receiving matrices to be fed one at a time. onto
30 said track, an ejector mechanism for ejecting
matrices one at a time from said magazine onto
. said track and to advance lsaid matrices in a
step by step movement along the track, a power
means carried by the supporting structure, a
means, a'manually 'controlled~ means for con
necting and disconnecting the cam to said worm
gear, a tray slidably mounted on the supporting
structure to receive the matrices as advanced
from the track, and a follower operated bysaîd
cam to advance-the tray endwise and stack the
matrices therein.
r 5. A machine for reconditioning matrices com
prisinga supporting structure, a power means
carried by said structure, a grinding mechanism
driven by said power means, a track carried by
said supporting structure to guide matrices into
and out of engagement with the grinding mecha
nism, a magazine carried yby the supporting
structure for delivering matrices onto said track,
an ejector mechanismI operated by said power
means for ejecting matrices one at a time from
the magazine onto said track and to advance the
matrices in a step by step movement along said
track, a marker carried by said track for mark
ing a matrix after it has been advanced from the
magazine onto said track, and means driven by
said power source for operating .the marker.
6. A machine for reconditioning matrices corn
prising a supporting structure, power means car
25
ried by said'structure, a grinding mechanism
driven by said power means, a track carried by
said supporting structure to guide matrices into
and out of engagement with the grinding mecha
nism, a magazine carried by the supporting 30
structure. for delivering matrices onto said track,
an ejector mechanism operated by .said> power
means for ejecting matrices one at a time from
the magazine onto said track and to advance the
35 marking mechanism carried by said supporting matrices in a step by step movement along said 35
structure for marking >the matrices one at a time
carried by said magazine and prior to being
advanced from the magazine onto the track by
said ejector mechanism, a drive means driven
40 by said power means for operating the ejector
mechanism- and the marking mechanism, a
grinding mechanism operated by said power
means to act on said matrices as advanced into a
certain position on the track by the ejector
45 mechanism, means receiving the matrices after
being marked and Vacted upon by the grinding
mechanism and to arrange them in stacked for
mation, and pneumatic means for removing
grindings from the grinding mechanism.
50
4. A machine for reconditioning matrices com
prising a supporting structure, power means car
ried by said structure, a grinding mechanism
driven by said power source, a track carried by
said structure for guiding matrices into and out
55 of engagement withthe grinding mechanism, a
magazine for delivering onto said track matrices,
track, a marker carried by said track for mark
ing a matrix after it has been advanced from
the magazine onto said track, a drive means in
termittently operated and driven by said power
means to operate the marker with hammer-like 40
blows.
,
'
7. A machine for reconditioning matrices com
prising ay supporting structure, a power means
carried by said structure, a grinding mechanism
driven by said power means for acting on a ma
45
triX supported by a certain portion of said track,
a magazine for supporting the matrices and de
livering them onto said track, an ejector for
ejecting matrices one at a time from the maga
zine onto said track and to advance the matrices 50
in a step by step movement over said track, a
cam for operating the ejector, spring means act
ing on the ejector to maintain the latter in en
gagement with the cam, a drive means between
the power means and the cam, a slidable marker 55
for marking the matrices as they move onto the
track from said magazine and including a slid
ably supported head, >a plate connected to said
vance the matrices vin a step by step movement head and pivotally mounted on said supporting
60 along said track, spring means acting to operate structure, a spring acting on said plate, an arm
the ejector in one direction, a cam connected secured to said plate, a lever pivotally mounted 60
to said ejector and working to move the ejector on the supporting- structure and engaging-the
in an opposite direction and for releasing the arm and including a stop means for limiting its
latter to be actuated by said spring means, a pivotal movement in one direction, a spring act
65 post carried ¿by said supporting structure and
ing on said lever, and a cam carried by the ñrst
forming a journal for said cam, a worm gear> cam to engage and disengage with said arm for 65
_journaled on said post, a worm meshing with imparting movement to said plate which in turn
thefworm gear, a shaft journaled on the support
actuates the marker with a hammer-like blow.
an ejector for ejecting matrices one at a time
from said magazine onto said track and to ad
ing structure and having the worm securedthere
70 to, means connecting the shaft to said power
JOHN E. SHEAFFER.
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