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Патент USA US2130965

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Sept. 20, 1938.
Filed Aug. 2, 1957
2 Sheets-Sheet 2
Patented Sept. 20, 1938
2,130,965 ‘
time smear
Richard 0. Porter, Wake?eld, Mass.
Appiioation August 2, 193?, Serial No. 157,050
i Claim. (Cl. 76-43)
My invention relates to tool supports and more tending lugs l3 for supporting thereon my tool
particularly to supports adapted for attachment support attachment ill by means of brackets it
to tool dressing machines.
adjustably connected thereto by bolts and nuts il'l.
One of the principal objects of my invention is
My tool support attachment comprises a longi
5 to provide a tool support adapted for attach
tudinally extending bed comprising a body it
ment to tool dressing machines equipped with formed with a groove in which is adjustably
means for presenting the tool to be dressed in mounted an arm M. The arm is formed with
proper tool dressing position to the dressing ele longitudinally extending slots 22 for receiving
Another object of my invention is to provide an
~ attachment of the above described character
which is easily attached to tool dressing machines
already in use without modifying the structure of
said machine.
A further object of my invention is to provide
an attachment of the above described character
equipped with means whereby tools of various
sizes may be accommodated and presented for
therethrough adjusting bolts 23 carried by the
lower section of the body and provided with suit
able nuts for clamping the arm thereto. The
body and arm are preferably constructed of Wood,
the upper surface of the arm' being provided with
metal wear plates for engagement with washers
carried on the bolts and interposed between the 35
nuts and plates, rl‘he wear plates function to pre
vent the washers penetrating or deforming the
upper surfaces of the arms-due to the binding
action of the bolts and nuts-thereby permitting
A still further object oi‘ my invention is to pro» ’ a smooth adjustment of relation to the body.
vide an attachment oi‘ the above described char»
A pair of parallel sill members 2/3 are attached
acter which is simple in construction, durable in to the sides of the arms 2i and are adapted for
operation and economical in manufacture.
sliding engagement with the upper face
of the
Still another object of my invention is to pro
bed. The sill members are connected together at
25 vide an attachment of the above described char~ their forwardly extending ends in a spaced rela» ‘
acter which minimizes operating time and maxi“ tion by means of a spacer 263.
mizes uniformity in tool dressing.
Mounted on the sill members and having slid
Other objects and advantages will be apparent ing engagement therewith is a tool table 22’, the
from the following description, appended claims lower face of which is formed with a spacing
30 and annexed drawings.
section 28 engaging the inner side faces of the
Referring to the drawings wherein like refer
sill members and coacting therewith to guide
ence characters designate like parts throughout the travel of the table in a direction to or from
the several views:
the dresser i2. The table is formed with an
Fig. l is a perspective view of my invention elongated slot 29 for receiving therein a plate
illustrated in connection with a tool dressing ma
39 constructed of metal and formed with a cen- 35
tral aperture registering with a slot 3i formed
Fig. 2 is a sectional view .on a line 2-4 of Fig. 1.
in the section 28.
Fig. 3 is a front elevation of my invention. .
sleeve 32 adapted to be positioned within the
Fig. 4 is a sectional view taken on a line 4-4 of
central aperture of a circular saw 33 and func
tioning to maintain the saw on the table. The 40
plate 30 and sleeve 32 are adjustable relative to
the table -21 and section 28 by means of a bolt
40 Fig. 1.
In teaching my invention, I utilize for the pur
pose of illustration and description a dressing ma.
chine of typical construction commonly known as
a grinder. The grinder is joined with a standard
5 having a shelf 6 on which is mounted a bearing
block 1 provided with bearings 8. A shaft S is
journaled in the bearings and is adapted for rota
tion therein by means of a pulley i0 secured there
on between said bearings, said pulley being-oper
50 ated from a suitable source of power (not shown)
through the medium oi’ a drive belt ii. One end
of the shaft 9 has secured thereon a tool dresser
l2 consisting of a wheel constructed of suitable
dressing material, for instance, carborundum.
55 The bearing block is formed with laterally ex
Mounted on the plate 30 is a,
and nut 34 securing the plate 36 in sliding en
gagement within the slot 29, as clearly illustrated
in Fig. 4. A plurality of collars 35 are spaced 45
about the sleeve 34 and secured to the upper sur
face of the table by means of suitable screws
and function to space the saw from the table
to prevent the teeth of the saw, which are set,
from engaging the upper surface of the table 50
and marring the same. Also by maintaining the
saw in raised position an easy adjustment there
of is obtainable. A latch 35 constructed of resil
ient material is secured at one side of the table
adjacent the saw and is formed with an offset 55
end 36 for engagement with the saw between
the teeth thereof to lock the saw in an adjusted
position on said table.
Secured to the arm 2| and extending laterally
thereof is an adjustable stop 31 having an offset
section 38 adapted to engage the inner side face
of the table 21 to limit movement of the table
in the direction of the dresser.
The upper and lower faces of the section 28,
10 adjacent the slot 3|, are provided with suitable
metal wear strips for effecting an easy adjust
ment of the plate 30.
In use, a circular saw having worn teeth is
positioned on the table about the sleeve 312, the
15 table moved towards the dresser I2 and the
plate 30 adjusted to position the saw in a manner
so that the wheel i 2 will operate against the
cutting face of a particular tooth. The arm 2i
is adjusted relative to the body to properly posi
tion the table longitudinally in order to eilect
a proper dressing position for the saw. Com
pleted adjustment of the arm 2| and sleeve 32
permits of the table feeding the saw into dressing
engagement with the dresser, the latch 35% lock
25 ing the saw against relative movement. Upon
retracting movement of the table, the latch is
disengaged from saw, the saw rotated a su?lcient
distance to present another tooth in dressing
position and the latch manipulated to again lock
the saw. Continued operation of the parts in
without. departing from the spirit of the inven—
tion or scope of the appended claim.
Having thus described my invention, what I
claim is:
A device of the character described, compris
ing, in combination, a tool dresser having a ro
tatable dressing element; and a tool support
comprising a bed having laterally extending
brackets adjustably secured to said dresser
whereby to adjust said support laterally relative
to said element, said bed fashioned with a lon
gitudinally extending shoulder having an upper
face, a longitudinally extending arm on said
bed adjacent said shoulder and movable there
with and adjustable lengthwise relative thereto, 15
laterally extending spaced sill members secured
to said arm above said shoulder for supporting
and sliding engagement with the upper face of
said shoulder, a tool table slidably mounted on
said sill members for transverse movement over 20
said arm and bed and fashioned with an elon
gated slot, a sleeve for positioning a saw on said
table, collars carried by said table and adapted to
support a saw and maintain the latter in spaced
relation with the upper surface of said table,
a plate slidable within said elongated slot and
connected to said sleeve and said table whereby
to adjust a saw relative to the end of said table
adjacent said dressing element, a stop adjustable
on said bed for limiting the movement of said 30
table towards said dressing element, and a latch
on said table coacting with said sleeve whereby
the above described manner effects a speedy and
uniform grinding or dressing of the saw teeth.
While I have described and illustrated my in
vention in connection with the grinding or dress
ing of a circular saw, it is to be distinctly under
stood that the invention lends itself to many
to secure the saw in locked position on said
table to effect a dressing of a desired tooth of
said saw, said table formed with a subjacent 35
other types of tools and work and that various
changes and modi?cations may be resorted to
section slidably engaging said sill members for
guiding the travel of said table to work achieving
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