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Патент USA US2131530

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Sept. 27, 1938. ‘
‘w. A. WEED
'
2,131,530
SHARPENING OR GRINDING DEVICE
Filed Aug. 14, 1937
3 Sheets-Sheet l
'Sept. 27, 1938.
w. A. WEED‘
2,131,530
SHARPENING 0R GRINDING DEVICE
Filed Aug. 14, 1957
3 sheetsésheet 2
Sept. 27,- 1938..
w. A. WEED
2,131,530
SHARPENING OR GRINDING ‘DEVICE
Filed Aug. 14, 19,57
3 Sheets-Sheet 3
Patented Sept. 27, 1938
" j 2,131,530
UNITED STATES PATENT OFFICE
Walter ‘A. Weed, Orlando, Fla.
’
Application August 14, 1937, Serial No. 159,191
6 Claims. (Cl. 51-220)
My invention relates to- a device for sharpening or shafts
l4, clamped therein by bolts l5 or the
or grinding tools or the like.
like.
An important object of the invention is to pro
Adapted to coact with the posts I4 is a carriage
vide a device of the above mentioned character
l6, shown as embodying blocks I7 and I8, rigidly
5 which is adapted for sharpening or grinding a
tool having a double bevel or taper, and which is secured together by any suitable means, and ar 5
adjustable to obtain one desired bevel and may ranged at a right angle with relation to each
other. In Figure 1, the block is is vertically
subsequently be manipulated to produce accu
disposed and is offset laterally with respect to the
rately the other bevel.
10
A further object of the invention is to provide block ll, while the block I1 has its ends extending
a clamping device for holding the tool, with means beyond the sides of the block H), as shown. The
to adjustably support the same and to readily horizontal block l7, Figure 1, has vertical-open—
permit of the tool being inverted for producing ings l9, to‘slidably receive the posts l4, and the
block 11 has screw-threaded openings 29-to re
the double bevel or taper.
15
A further object of the invention is to provide ceive winged bolts 2|, to engage the posts [4 and
a stand or support, for coaction with the work
clamp, and which has a large range of adjust
ment, to eifect the desired
A further object of the invention is to provide
results. > '
20 a clamp which may be used
for holding elongated
work extending longitudinally of the clamp.
Other objects and advantages of the invention
will be apparent during the course of the follow
ing description.
25
In the accompanying drawings forming a part
cally 'angularly adjustable and also horizontally
longitudinally adjustable,.with respect to the block
the same,
Figure 1 is a side elevation of apparatus em
I8.’ This supporting unit comprises spaced upper
and lower horizontal rods 24 and 25, preferably
cylindrical, and having corresponding ends in
serted into openings 26 in a cross-head 27!, and‘
clamped therein by bolts 28 or the like. Corre~
sponding ends of this supporting unit are there
fore rigidly connected, while its opposite ends
bodying my invention,
Figure 2 is an exploded perspective view- of the
same,
Figure 3 is a plan view of thesame,
Figure 4 is a vertical section taken on line 4-4
35 of Figure 3,
Figure 5 is a vertical section taken on line 5—5
of Figure 3,
are free and unconnected. The supporting unit
as a Whole is approximately U-shaped. In the
arrangement or adjustment shown in Figures 1
Figure 6 is a side elevation of the apparatus
to 3 inclusive, the lower horizontal rod 25 is
passed through the upper opening 26', and is slid
shown in Figure 1, the apparatus shown in Figure
40 6 having a di?erent adjustment,
Figure 7 is a side elevation of a modi?ed form
of apparatus embodying my invention,
45
horizontal openings 2|’ and 22’ formed therein,
which are'spaced, as shown. The openings 2|’
and 22' are suitably spaced to receive the posts
Hi, When the block I8 is horizontally arranged, as
will be described.
Mounted upon the vertically adjustable car
riage I6 is a supporting unit 23, which is verti
of this application and in which like numerals
are employed to designate like parts throughout
30
thereby clamp .the block in the selected adjusted
elevation upon the posts Id. The block l8, ver
tically arranged in Figure 1, has transverse or
Figure 8 is a plan view of the same,
Figure 9 is an exploded perspective view of the
clamp embodied in such apparatus, and,
Figure 10 is a transverse section taken on line
|0—|0 of Figure 8.
In the drawings, wherein for the purpose of
50 illustration are shown preferred ‘embodiments of
my invention, the numeral IO designates a verti
cal stand as a whole, comprising a horizontal base
H, to be ?xedly secured to a table or like sup
port. Base II has ablock l2 rigidly secured there
56 to, having openings I 3, to receive vertical posts
.able therein, to turn'upon its longitudinal axis
or to move longitudinally therein.~ The rod 25 is
clamped in the selected adjusted position by a
winged bolt 29 having screw-threaded engage
ment within a screw-threaded opening 39, one
bolt 29 for each opening 2|’ and 22’.
‘The numeral 32 designates a work clamp, as
33 and 34,
I
ably longitudinally serrated, as shown at 35, and
these inner faces preferably have transverse
grooves 36, generally V-shaped in cross-section
to receive the opposite edges of a narrow blade
37, when'such a tool is to be sharpened. This
blade carries the usual handle 38. The upper
and lower jaws 33 and 34 are ordinarily generally
horizontally arranged in use, and are adjustably 55
2,131,530
2....
connected by means of winged bolts 39, passing
through openings 39’ formed in the upper jaw
33 and in lugs or blocks 49, rigidly attached to the
upper jaw 33. The bolts 39 do not have screw
threaded engagements with the openings 39', but
their lower ends have screw-threaded engage
ment within openings 4|, formed in the lower jaw
34 and blocks 42, rigidly attached thereto. When
the jaws 33 and 34 are employed to hold an elon
10 gated blade 31 or the like extending transversely
of the jaws, the jaws are transversely parallel
and the work is properly clamped between the
same by manipulation of the bolts 39. When
these jaws are employed to hold elongated work
extending longitudinally of the jaws, such work
15
is arranged between the jaws in advance of the
bolts 39 and the jaws are drawn together by
manipulation of the bolts. The jaws are main
tained transversely parallel by manipulating a
20
The carriage 16 has been turned for 90° so that
the block I8 is horizontal and the block l1 verti
cal. The openings 2|’ and 22’ are now. vertical
and receive the vertical posts l4, which may be
clamped therein by the bolts 29. The block [1,
now vertically arranged, being offset laterally
from the block I8 is farther from the grinding
wheel, and since it is shorter, and has its inter
mediate portion secured to the block 18, it pro
duces a stand which is much lower, and may be
adjusted to a considerably lower position. The
openings 19 in the block l1 are now horizontal
and the upper opening receives the lower rod 25
bolt 44, having screw-threaded engagement with
an opening 44' formed in the upper'jaw 33 and
this bolt 44 will engage the lower jaw 34, behind
the work. The bolt 44 is arranged out of align
ment with the bolts 39 and rearwardly of the
25 same, and there is a slight play between the bolts
39 and openings 39’.
Preferably formed integral with the upper
blocks 40 are knuckles 45, having horizontal open
ings 46, to slidably receive the upper rod 24, and
30 knuckles 41 are preferably formed integral with
the blocks 42 and have openings 43 to slidably re
ceive the rod 24. Each pair of knuckles is there
fore adapted to be slidably mounted upon the
upper rod‘24, to turn thereon, and move longi
35 tudinally thereof, and to be removed from the
' rod. By this means, either pair of knuckles may
be placed upon the rod 24 and one beveled face
31’ of the blade 31 ground, afterwhich the clamp
may be removed from the rod“, inverted with—
out disturbing its holding engagement with the
work 31, and the other pair of knuckles slidably
mounted upon the rod 24 for grinding the other
beveled face 31’.
The numerals 49 and 59 designate vertically
rotating
grinding wheels, to ‘be arranged at suit
45
able distances upon one side of the supporting
unit 23.
'
a
The operation of the form of apparatus'shown
in‘Figures 1 to 4 inclusive, is as follows:
50
The blade or work 31 is clamped between the
jaws 33 and 34, and projects forwardly beyond
the same, while the handle 38 extends rearward
ly beyond the jaws to be grasped by the operator.
The supporting unit 23 is angularly adjusted, so
55 that its top is swung toward or from the grinding
wheel, so that the bevel 31' of the blade will
properly engage the periphery of the grinding
wheel. The supporting element is now clamped
to the carriage by manipulation of the bolt 29.
60 The blade or work is now pressed into» proper en
of the supporting unit, slidable therein, and
adapted to be clamped in position by the winged 15
bolt 2|. The clamp'32 is mounted upon the upper
rod 24 to turn and move longitudinally thereof,
as explained.v It is obvious that the carriage may
be arranged with the block 18 in the horizontal
position, and the block l1 upon the forward side 20
of the posts 44, if desired.
In Figures '1 to 10 inclusive, I have shown an
adjustable clamp wherein the jaws are shiftable
to and from the knuckles, to vary their distance
from the grinding wheel. In these ?gures, the 25
numerals 51 and 52. designate upper and ‘lower
bars, provided with apertured knuckles 53, to
slidably receive the upper rod 24 of the support
ing unit 23, the entire clamp being invertible, as
describedin connection with the ?rst form of 30
clamp. These bars .51 have recesses 5|’ for the
free passage of work extending transversely of
the clamp. The lower bar 52 carries vertical guide
bars 54 rigidly secured thereto, for slidable en
gagement within vertical openings 55 formed 35
in the upper bar ._5l. Each upper and lower bar
5| and 52 carries a pair of horizontal guide pins
56, to be slidably mounted within openings 51
formed in upper and lower jaws “and 59, corre
sponding to the jaws 33 and 34. The upper jaw
58 hasv vertical ‘openings 60, receiving vertical
bolts 6|, but having no screw-threaded engage
ment therewith, and thelower ends of these bolts
have screw-threaded engagement within open
ings 62 formed in the lower jaw 59. It is thus
apparent that the 7bolts 6| permanently connect
the jaws 58 and 59 and are adapted to draw these
jaws together. The upper jaw has‘ a screw
threaded opening 63,ihaving screw-threaded en
gagement with a bolt 64, to contact with the 50
lower jaw to tilt the upper jaw or to prevent tilt
ing, to retain the upper and lower jaws transe
versely parallel when holding. elongated work
extending longitudinally thereof. The pairs of
connected jaws, slidable upon the guide pins 56, 55
are clamped in adjustment upon the lower guide
pins 56 by bolts 65, engaging within screw-thread
ed openings 66. The swinging movement of the
supporting
element , brings the
work-holding
clamp closer or farther from the rotary grinding 60
wheel, andadjusts the angular, position of the
gagement with the grinder or grinders, as the work with (respect to the grinder. The jaws 5B
clamp may be shifted longitudinally in proximity and 59, being adjustable upon the guide pins 56
to either grinder, and after one bevel 31' is serve to increase the range of adjustment _be
ground, the clamp is inverted and the other bevel tween the work _and grinder. _This adjustable 65
clamp is adaptedfor use in connection with the
05 31’ ground in a similar manner. When grinding
work like the blade 31 having the handle 38, the stand, described in connection with the ?rst ‘form
work may be manipulated either by the handle of clamp, in the manner previously presented.
38 or by the operator engaging the clamp 32.
It ‘is to be understood that the forms of 'my in
When the clamp is holding shorter work extend
vention herewith shown and described are to be 70
.ing transversely thereof, or elongated work ex
70 tending longitudinally of the clamp, the, clamp taken as preferred examples of the same and that
various changes in the shape, size, and arrange
is manipulated by the operator holding the same ment of parts may be resorted to without depart
ing from the spirit of my invention or the scope
in his hand.
In Figure 6, the same apparatus is shown, but of the subjoined claims.
75
the parts are adjusted or assembled differently.
2,131,580
3
Having thus described my invention, what I
work clamp comprising opposed jaws, adjustable
posts, a carriage including vertical and horizon
tal parts which are o?set laterally, the horizon
tal part having a pair of spaced openings to slid
ably receive the pair of vertical posts and the
vertical part having spaced openings to slidably
10 receive the vertical posts, means to clamp the
means to draw the jaws together, separate aper
tured knuckles secured to the jaws, a supporting
unit comprising spaced rods, one rod being
adapted to slidably receive thereon the apertured
knuckle of one jaw and to slidably receive there
on the separate apertured knuckle of the other
jaw when the clamp is inverted, a support to
receive the other rod which is capable of turning
claim is:
1. In a grinding device, a rotary grinder, a
work clamp, a stand comprising spaced vertical
horizontal part to one post when such part is
mounted upon the posts, means to clamp the
vertical part to one post when it is mounted
upon the posts in a horizontal position, a sup
15 porting unit comprising spaced upper and lower
rods, the lower rod being adapted to- be inserted
Within one opening of either horizontal or ver
tical part, means to clamp the lower rod to either
horizontal or vertical part when inserted in the
20 opening thereof, and means to pivotally mount
the clamp upon the upper rod.
,
2. In a grinding device, a clamp including op
posed jaws, separate apertured knuckles secured
to the jaws, adjustable means to draw the jaws
25 together, and a support comprising a rod to re
ceive thereon the apertured knuckle of one jaw
and to also receive thereon the other separate
apertured knuckle of the other jaw when the
clamp is inverted.
30
3. In a grinding device, a work clamp, com
prising
opposed
jaws,
separate
apertured
knuckles carried by the jaws, adjustable means
to draw the jaws together, a supporting unit
comprising a pair of spaced rods, one rod slid
35 ably receiving thereon the knuckle of one jaw
and also being adapted to receive thereon the
separate knuckle of the other jaw when the
clamp is inverted, and a support having an open
ing for adjustably receiving and holding the other
40 rod.
4. In a grinding device, a rotary grinder, a
therein, means to clamp the last named rod to 10
the support, and means to adjust the support
with respect to the rotary grinder.
5. In a grinding device, a rotary grinder, a
work clamp including opposed jaws, separate
apertured knuckles secured to the opposed jaws 15
and extending outwardly from the work engag
ing faces of the same, adjustable means to draw
the jaws together, a supporting unit comprising
a pair of spaced rods, one rod being adapted to
slidably receive thereon the knuckle of the one 20
jaw and to slidably receive thereon the separate
knuckle of the other jaw when the clamp is in
verted, a stand, a carriage vertically adjustably
mounted upon the stand and having an opening
to adjustably receive the other rod, means to 25
clamp the last named rod to the carriage, and
means to clamp the carriage to the stand.
6. In a grinding device, a clamp including op
posed jaws, the opposed jaws having openings
formed therein, opposed bars arranged near the 30
jaws, rods carried by the opposedbars and slid
ably mounted within the openings of the jaws,
adjustable means to draw the jaws together,
separate apertured knuckles secured to the op
posed bars, and a support comprising a rod to 35
receive thereon the apertured knuckle of one bar
and also receive thereon the other separate aper
tured knuckle of the other bar when the clamp is
inverted.
WALTER A. WEED.
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