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Патент USA US2409936

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2,409,936
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TOOLMAKER’S ANGLE BLOCK
Filed Sept; l2, 1944
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2,409,936
Patented Oct. 22, 1946
UNITED STATES PATENT OFFICE
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2,409,936
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TooLMAKER’s ANGLE BLOCK
Thomas E. V. Hunt, Norristown, Pa.
Application September 12, 1944, Serial No. 553,790
9 Claims. (Cl. 90---59)
l
The invention relates to an improvement on
the usual toolmaker’s so-called conventional an
gle iron, which normally comprises a true hori
zontal base surface and a single true vertical
surface at 90° to the base surface, for holding
various kinds of work pieces to be drilled, ground,
planed, or otherwise machined, so that the ma
2
der 8 and an offset complementary back surface
0a truly parallel to the main back surface 6, these
shoulders being provided for positioning rectan
gular, flat and similar Work pieces parallel to the
end surfaces 3 and 4.
Y
The top surface 5 and back surface E are each
provided with a fiat walled, V-shaped horizontal
trough 0, parallel to the base l, for holding round
chinings will be true right angles to each other,
work pieces in true parallel relation to the base
suitable clamps being provided to hold the work
to the angle iron and the angle iron now to the l0 i; the back surface 6 is provided with a similar
flat walled V-shaped trough I0 intermediate and
bed of the machine tool on which the angle iron
parallel to the end walls 3 and 4 and disposed at
is being used.
.
the same angle as the back surface 0 relative to
The object of the present invention is to pro
the base surface | for holding round pieces ac
duce a machinist’s tool of greater utility than
curately at the angle of the back surface 6 rela
the above-noted time honored toolmaker’s angle
tive to the base I; and the end surface 4 is pro
iron, by providing a solid block of hardened steel,
for example, with a plurality of flat surfaces
which are mechanically true, per se, and which
vided with a vertical V-shaped trough || for ac
upon for accuracy in clamping flat, round, rec-~
_tangular or other shaped pieces of work in defi
nite relationship to the path of movement rota
Any desired number of tapped clamp screw
holes I2 may be provided in the various surfaces
for clamping the work pieces in position there
tion` etc. of a tool head or spindleetc. and to
on.
curately positioning round work pieces parallel to
the end surface 4, with their aXes truly per
bear true predetermined angular relationship to
i
`each other, whereby the block may be depended 20 pendicular to the base |.
the stationary or movable bed plates of any of
a large number of machine tools, such as drill
presses, shapers, planers, grinders, slotters, mill
ing machines, etc.
In the accompanying drawings:
.
In that form of the invention shown in Figs.
5, 6, 7 and 8, the block comprises a true flat hori
zontal base surface |0I; a true flatfront vertical
surface |02; a pair of true flat end surfaces |03
and |04 respectively, truly parallel to each other
Figs. l and-2` respectively are perspective views 30 and each disposed truly at 90° to the base sur
face |0| and at 90° to the vertical front surface
viewing the tool of the present invention from
|02; a true flat horizontal top surface |05 paral
different angles; i
,
‘
lel to the base surface |0|; and a back surface
Figs. 3 and 4 respectively are a plan View and
|06.
an end elevation.
. Figs. 5, 6, '7 and 8 are respectively a plan view,
i In this instance the back surface |06 is di
end, front andrear elevation of a modified form
vided into two parts |00a, disposed at an angle
fof the invention.
of 45° for example to the base surface |0|, and Y
In the present instance the invention `consists
in providing a solid block of hard tempered steel
|00b, disposed at an angle of 60° for example
right-angular shoulder '|, perpendicular thereto,
walled V-shaped horizontal trough |09, which is
to the base surface |0l.
The front surface |02 is provided with one or
having a true ñat horizontal base surface |; a 40
a pair of right angular shoulders |01, perpen
true fiat front vertical surface 2 at 90° `to the
dicular thereto, and one or two offset complemen
base surface; a pair of true flat vertical end sur
tary faces |0211, each of which is truly parallel
faces 3 and 4 truly parallel to each other and
to the main front surface |02. The main front
each disposed truly at 90° to the base surface |
and at 90° to the vertical front surface 2; a top 45 surface |02, in the present instance, is also pro
vided with a `vertical fiat walled V-shaped trough
surface 5 which is truly parallel to the base sur
||| which is parallel to the end surfaces |03 and
face I; and a back surface 6 disposed at an angle
|04 respectively, and truly perpendicular to the
of 45°, or at any other desired fixed angle, to
base surface |0|.
the base surface I.
The top surface |05 is provided with a flat
i The front surface 2 is provided with a true 50
parallel to the base surface |0| and parallel to
the front surface |02, and at true right angles
to the end surfaces |03 and |04.
a similar true right-angular perpendicular shoul 55 The back surface |06 is provided with a hori
and an offset complementary front face 2a, which
Alatter is truly parallel to the main front sur
face 2; and the back surface 6 is provided with
2,409,936
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4
zontal fiat Walled V-shaped trough HIJ, including
horizontal base surface, a true flat vertical front
surface at 90° to said base surface, a top surface
a horizontal flat wall |I0a, parallel to the base
lûl, and a vertical flat wall llûb, parallel to the
opposite said base surface, a true flat rear sur
front face |02, said flat Walls lilla and H011 being
face disposed at an angle of less than 90° With
at right angles to each other.
5 respect to said base surface and extending from
The back surface 109 is also provided with a
said top surface substantially to said base sur
central rib 608 affording a right-angular shoulder
face, and a V-shaped flat Walled trough formed
l08a, perpendicular to the 45° surface Iiìßa, and
in said rear surface parallel to the angle thereof
a right-angular perpendicular shoulder 108D for
and extending substantially from said base sur
the 60° back surface i061).
v
,
,
10 face lto said top surface. .
The 45° rear surface l06a is provided with a
fiat Walled V-shaped trough Il2a parallel to and
adjacent the end wall |04, and the 60° rearsur
face i001) is provided with a flat Walled V-shaped
trough l |21) parallel to and adjacent the end Wall
|03.
'
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4. An angle block provided with a true flat
horizontal base surface, a true flat vertical front
surface at 90° to said base surface, a top surface
l15
It will be clear that, with the block resting on
its flat base l0l, the front face |02, with its per
opposite said base surface, a true flat. rear sur
face disposed at an angle of less than 90° With
respect to said 4base surface and extending from
said top surface substantially to said base sur
face, a V-shaped flat Walled trough extending
pendicular shoulders lill and its trough ll l, may
horizontally across said rear surface parallel to
lbe used to secure Work pieces in true perpen 20 said base surface intermediate said base surface
dicular relationship to the base itil, and that, by
and said top surface, and a V-shaped flat Walled
turning the block to the extent of 90° and using
trough formed in said rear surface parallel to `
either of the lend surfaces 903 orV 504 as the
the angle thereof » and extending substantially
base surface, the work pieces secured With the
from said base surface to said top surface in
front face E02 could be turned a true 90° from 25 intersecting relation to said horizcntaltrough. `
the position they assumed While the block was
5. An angle block provided With a true flat
resting on its true base £01.
'
horizontal base surface, a true flat Vertical frontV
In using the block with it setting on its base
surface at 90° to said base surface, »a top
Hit, Work pieces clamped to the back surfaces
or 60° -to their respective longitudinal axis, as
surface opposite said base surface, a pair of
true‘flat parallel side surfaces each at 90° to said
front surface at opposite sides respectively there
suming that the machine tool is operating in a
horizontal plain parallel-t0 the base mi. If the
less than 90° with respect to said base surface and
lfliia or Hlth can be accurately machined at 45°
s.,
of, a true fiat rear surface disposed at an angle of
block is then turned 90°, to rest on its front sur
extending from said «top surface substantially to
faces l02 or l02a, _l02a a Work piece clamped to 35 said base surface, anda V-shaped flat Walledl
the surface 290D, or in the trough l lfb, with the
trough formed in said rear surface parallel to the
machine tool operating horizontally, would be
angle thereof and extending substantially from
machined at an angle ofv 30° to its longitudinal
said base surface to said top surface intermedi
axis.
ate and parallel to said side surfaces. .
From the above, it Will be clear that the block
shown in Figs. 5 to 8 inclusive, is capable of hold
6. An angle block provided with true flat hori
zontal base and top surfaces spaced from and
parallel to each other, a pair of true flat vertical
side surfaces spaced apart and parallel to each
other and extending from said base surface to
ing Wort: pieces accurately at 45°, 60°, 90° or
parallel to the‘horizo’ntal. Obviously the fixed
angular surfaces l00a, i051), may be trued to any
desired angle, other than 45°, or 30°'-60°, for
special Work if desired, but the 30-45-60-90 degree
combination seems to be the most desirable for
all-around toolmakers’ and other machinists’
Work.
I
claim:
V
'
i said top surface, a true fiat vertical front surface
bounded by and 'disposed at 90° to each of said
base top and side surfaces, a rrear surface ex
tending at an angle less than 90° with respect to
said base surface substantially from said base
surface to said top surface intermediate said side
l. An angle block provided with a true flat
surfaces, a right angle shoulder formed on and
horizontal base surface, a true flat vertical front
projecting perpendicularly- from atleast one of
saidtrue yflat surfaces and extending, the full
length of one dimension of the area` thereof, a
flat Walled V-shapedtrough formed in at least
one of said true `dat surfaces parallel to` one of
the marginal edges thereof as formed by the in
surface at 90° to said base surface, a top surface
opposite said base surface, a true ilat rear sur
face disposed at an angle of Áless than 99° with ~
respect to said base surface and extending from
said top surface substantially to said base sur
face, a right angle shoulder on and projecting
vertically from said angular rear surface adjacent
one side edge thereof, and a complementary rear
angular `‘surface parallel to ¿the first said rear
surface
and
extending
laterally
shoulder to said side edge. l
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said
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2. An angle block pro-vided» with a truev flat
horizontal base surface, a true Aflat vertical front
surface at 90° to said base surface, a top’surface
opposite said base surface,¿a‘true fiat» rear sur
face disposed at an angle of lessfthan l90" With
’respect to said base surface andk extending from
' saidtop surface substantially to said? base surface,
and a V-shaped flat Walledl trough extending
horizontally across said rear surface parallel to
said. 4base surface intermediate said base surface
and saidrtopV surface. '_
_
»
_
3. An angle block provided withï a true flat
tersection of _such >trough-bearing flat ’surface
with another of Asaid fiat surfaces, said rear fiat
surface bearing a pair of'said troughsV in right
angular intersecting relation to each other,
7. An angle block provided with true flat hori
zontal base and top surfaces spaced from and
parallel to each other, a pair of true flat Vertical
side surfaces spacedapart and parallel to each
other and> extending from said base surface to
said top surface, a true fiat vertical front surface
bounded by and disposed at 90° to .each of said
base top and, side surfaces, a rear’surfa'ce extend
ing at an angle lessthan`90°with respect to said
base surface substantially from said base surface
to ,said top _surface-intermediate said side sur
faces, `a right angle shoulder
p
formed ¿on arldplfo- '
jecting' ,perpendicularly fromat `least vone of said
true flat surfaces and extending'the full length
2,409,936
5
6
of one dimension of the area thereof, a flat Walled
V-shaped trough formed in at least one of said
true flat surfaces parallel to one of the marginal
edges thereof as formed by the intersection of
such trough-bearing ñat surface with another of
said fiat surfaces, said rear flat surface bearing
a pair of said troughs in right angular intersect
ing relation to each other with one of said right
angle perpendicular shoulders adjacent one of
ing relation to each other, said top surface and
one of said side surfaces each bearing oneof said
troughs parallel to said front surface.
9. An angle block provided with true flathori
zontal base and top surfaces spaced from and
parallel to each other, a pair of true flat Vertical
side surfaces spaced apart and parallel to each
other andextending from said base surface to
said top surface, a true ñat Vertical front surface
said side surfaces.
l
10 bounded by‘and disposed at 90° to each of said
8. An angle block provided with true flat hori
base top and side surfaces, a rear surface extend
zontal base and top surfaces spaced from and
ing at an angle less than 90° with respect to said
parallel to each other, a pair of true flat vertical
base surface substantially from said base surface
side surfaces spaced apart and parallel to each
to said top surface intermediate said. side sur
other and extending from said base surface to 15 faces, a right angle shoulder formed on and pro
said top surface, a true flat vertical front surface
jecting perpendicularly from at least one of said
bounded by and disposed at 90° to each of said
true flat surfaces and extending the full length
base top and side surfaces, a rear surface extend
of one dimension of the area thereof, a flat Walled
ing at an angle less than 90° with respect to said
V-shaped trough formed in at least one of said
base surface substantially from said base surface 20 true fiat surfaces parallel to one of the marginal
to said top surface intermediate said side sur
edges thereof as formed by the intersection of
faces, a right angle shoulder formed on and pro
such trough-bearing flat surface with another of
jecting perpendicularly from at least one of said
said flat surfaces, said rear flat surface bearing a
true flat surfaces and extending the full length
pair of said troughs in right angular intersecting
of one dimension of the area thereof, a ñat Walled
relation to each other, said top surface and one
V-shaped trough formed in at least one of said
of said side surfaces each bearing one of said
true flat surfaces parallel to one of the marginal
troughs parallel to said front surface„ said rear
edges thereof as formed by the intersection of
and front surfaces each being provided with one
of said right angle perpendicular shoulders ad
such trough-bearing fiat surface with another of
said fiat surfaces, said rear flat surface bearing 30 jacent said side surfaces respectively.
a pair of said troughs in right angular intersect
THOMAS E. V. HUNT.
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