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Патент USA US2072970

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March 9, 1937.
F. w. THOM
2,072,970
SHARPENING DEVICE
,Filed March 30, 1936
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March 9,1937.
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SHARPENING DEVICE
Filed'Marqh 30, 1936
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2 Sheets-Shed 2
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A Ziorneli
Patented Mar. 9, 1937
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2,072,970;
"UNITED STATEg PATENT ‘OFFICE-"f
Fredrick W. Thom, St. Paul, Minn.
Application March so, 1936, Serial No. 71,605 ‘
5 Claims.
(Cl. 51—217)
The present invention relates to an improved
device for holding a butcher’s steel to facilitate the
downwardly toward the center, the steel, as shown
in Figure 2,, will stand below the rods so that the
handling of the steel in a sharpening operation.
The invention comprises means for adjustably
5 holding the steel and permitting the holding de
vice being conveniently and easily handled by the
operator in holding the steel against the sharpen
rods will not interfere with the use of the device
ing instrument, as an emery wheel.
This and other features of the invention will be
10 more speci?cally set forth in the following de-,
scription and the accompanying
drawings,
wherein:
t Figure 1 is a plan view of one form of :the inven
1011.
15
Figure 2 is a view in side elevation of the in
vention, shown partly in section.
Figure 3 is an end view of the invention .
Figure 4 is a side view of a modi?ed form of
holder.
Figure 5 is a sectional view on line 5—5 of
Figure 4.
Figure 6 is a plan view showing a modi?ed form
of the invention.
Figure 7 is a sectional view on line ‘|—‘! of
25
in a sharpening operation.
»
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i
"If I
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In the modi?cation shown in Figures 4 and 5
a single rod I4 is provided, one end l5 of the rod
being bent outwardly and supporting a socket
member 16 and connected grease cup II. An
arm I8 is slidably supported upon the outer ends
of the rod I4 and formed at its free end with a 10
socket portion to receive one end of the steel,
while the socket member I6 supports the other
end, the arm l8 being held in adjusted positions
upon the rod M by the thumb screw l9.
In the construction shown in Figures 6 to 8, in 15
clusive, the construction of Figure 1 is modi?ed
to permit the steel being held without removal
of the handle. As shown in Figure 6, the cross
bar 3 supports a socket member 20 within which
is rotatably mounted the collar 2 I, an anti-friction
bearing 22 being interposed between the collar
and the socket member.
The central opening through the socket mem
ber and collar registers with the corresponding
Figure 6; and
opening through the cross bar 3. The steel may
Figure 8 is a partial sectional view on line 8-8
of Figure 6.
Referring to the drawings in detail, in the form
shown in Figures 1 to 3, a frame is provided con
sisting of side bars or rods 2 anchored in the ends
of a cross bar 3. A handle 4 is supported by the
thus be shoved through the socket member and
collar to bring the point of the steel into the hear
ing l3, as shown in dotted lines in Figure 6, with
out removing the handle of the steel. The steel
is then secured in position by thumb screws 23
passing through the collar in contact with the
cross bar 3, said cross bar and handle forming
steel.
' In use of the device, the handle of the steel may,
one end of the frame. Upon the opposite ends
of the rods is slidably supported a cross bar 5,
the cross bar at its ends being formed with bends
35
6, the rods 2 slidably extending through openings
if desired, be used in substitution for the handle
4 in grasping the end of the apparatus.
35
In operation, the steel is clamped in the frame,
Thumb screws 1 are threaded
as shown in the drawings, between the ?xed end
through said bends and are adjustable to engage
with the ends and to hold the cross bar 5 in ad
40 justed position upon the rods. The cross bar 5
of the frame and the adjustable end.
The steel freely rotates within the receiving
sockets as the frame is manipulated to hold the
steel against the sharpening device, as an emery
in said bends.
on its outer side supports a handle 8.
'
For the purpose of supporting the steel 9, the
cross bar 3 is bowed downwardly, as shown in Fig
ure 3, and centrally supports a socket ID, to which
45 is connected a communicating grease-cup l l.
The socket [0 may, as shown in Figure 2, be in
teriorly provided with an anti-friction ball bear
ing l2, or, as has been found by experience, this
ball bearing may be dispensed with and the func
tioning with respect to the supported steel secured
by the grease fed into the socket from the grease
cup. The cross bar 5 on its inner side centrally
supports a socket l3 to receive one end of the
steel, while the socket 10 supports the other end.
55
By having both the cross bars 3 and 5 bowed
0
wheel.
.
In the form shown in Figure l, the frame in use
is grasped by the end handles and in the form
shown in Figure 4 grasped beyond the supported
ends of the steel in a sharpening operation. In
both forms the steel, as shown, is supported in
an offset and parallel position with reference to
the bar so as to be held against the sharpening
wheel without the ‘bars interfering with the 50
sharpening operation.
I claim:
'
1. ‘A device for supporting a sharpening steel
for the purpose set forth, comprising a frame in
cluding a longitudinal bar, a socket member for
2
2,072,970
one end of the steel supported by one end of the
bar in offset position, an opposed slidable mem
ber supported by the bar and carrying a socket
member for the other end of the steel in an offset
position to the bar corresponding to the offset
position of the opposed socket member.
2. A holding device of the class described for a
butcher’s steel, comprising a frame including a
longitudinal bar, a bearing socket for one end of
10 the steel adjustably supported at one end of the
bar in o?set. relationship thereto, and an anti
friction bearing member for said steel supported
at the other end of the bar in offset relation to
the bar, for the purpose set forth.
-
15
3. A holding device of the class described for a
butcher’s steel, comprising a frame including a
longitudinal bar, a bearing socket for‘ one end of
the steel adjustably supportedyat one end of the
bar in offset relationship thereto, an anti-friction
20 bearing member for said steel supported at the
other end of the bar in offset relation to the bar,
and» a grease cup having communication in con
nection with said anti-friction bearing, for the
purpose set forth.
4. A device of the class described for removably
supporting a butcher’s steel, comprising a longi
tudinally extended frame, a member adjustably
supported by one end of said frame and carrying
a socket bearing in offset relationship to said
frame to receive the outer end of said steel, an
offset anti-friction bearing carried by the op
posite end of said frame for receiving the handle
end of said steel, handle means carried by the op
posite ends of said frame, and means adjustably 10
securing said steel in position in said bearings.
5. A device of the class described for removably
supporting a butcher’s steel, comprising a longi
tudinally extended frame, a member supported
by one end of said frame and carrying a socket 15
bearing in offset relationship to said frame to
receive the outer end of said steel, an offset anti
friction bearing carried by the opposite end of
said frame for receiving the handle end of said
steel, handle means carried by the opposite ends
of said frame, means adjustably securing said
steel in position in said bearings, and lubricating
means for said anti-friction bearing.
'
FREDRICK W. THC
.
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