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Патент USA US2118085

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May 24, 193%.
W. F. HELMOND
2mm
TYPEWRITING MACHINE
Original Filed June 10, 1953
5356050
BY
- TTORNEY.
Patented May 24, 1938
2,118,085
UNITED STATES ; PATENT
OFFICE
mawnrrmo MACHINE
William F. ?elmondfwest Hartford, Conn., as
slgnor to Underwood Elliott Fisher Company,
New York, N. Y., a corporation of Delaware
Application June 10, 193:, Serial No. 675,254
Renewed January 19, 1937
8 Claim.
This invention relates to sound and shock ab
sorbing feet for typewriting machines and the
like, and to hold-down means for the machine.
Feet made of rubber compound as heretofore,
do not prevent the transmission of sound to the
underlying table to the greater degree which is
(Cl. 248-24)
a retired position in its desk. The hold-down
device includes a catch swingable between a
machine~holding position and a machine-releas
ing position. The catch has a transverse pivot
ing edge fulcrumed in a notch of a fulcrum-plate I
which faces another plate bearing against an
attainable by the use of more inert material such
other transverse edge of said catch spaced from
as felt. Feet made wholly of felt, the felt being
relatively soft and yielding, have the drawback
10 of not standing up well under the strain and
and parallel to the pivot-edge. The two plates,
secured to the machine-support, clasp said catch
wear.
1
The present invention provides an improved
foot in which felt and rubber portions are com
bined, by means of a novel organization, to_ the
end that the felt portion is effective to prevent
the transmission of sound, and the solid rub
ber portion gives mechanical strength to the foot
and at the same time conduces to the absorption
of shock and noise. The novel organization is
20 moreover practical in that it affords a foot which
may be readily substituted for prior feet in ma
chines already in use.
The felt portion may surmount the rubber
portion, so that it is interposed between the rub
25, ber portion and the machine. The rubber por
tion forms the base of the foot. The two por
tions may be arranged so that when they are
conjoined, they interlock in such manner that
the felt portion is held against lateral displace
30 ment relative to the base-portion, and so that
the tendency ofthe felt to spread under the
load of the machine is resisted. ‘The felt por
tion may also be topped by a cap formed to ?t
around the periphery of the felt portion, and
35 thereby co-operating to resist spreading of the
latter under the machine load. Said cap may’
be part of the attachable foot.
A headed screw may pass through the compo
site foot for attachment of the latter to the ma
40 chine, the shoulder formed by the screw-head
co-operating with a seat counterbored from the
bottom of the rubber portion to retain the foot.
~The screw may also be shouldered against the
aforesaid cap which surmounts the felt por
45 tion, the shoulder at the head being preferably,
at said edges with resilient pressure and act to 1-40
yieldably detent the catch in its effective and
ineffective positions, determined by abutment of
the catch-portion between said edges with op
posite sides of the fulcrum-notch. Certain
novel features of organization relate to the ap 5
plication of the described hold-down catch, in
association with the front feet of the'machine,
and which features conduce to simplicity, reli
ability of the catch, and to minimizing the cost.
Other features and advantages will hereinafter
appear.
-
In the accompanying drawing,
Figure 1 is a side elevation indicating a type
writer resting on its supporting table and show
ing the novel feet and hold-down device in cross
section.
Figure 2 is a diagram showing how the hold
down device ' co-operates to, retain the type
writer on its support when the latter, which is
shown as part of a typewriter-desk, is tilted.
.Figure 3 is a top plan view of the support on
which the typewriter rests, showing the arrange
ment‘of the foot-sockets and hold-down means.
Figure 4 is a perspective view of the novel foot
and associated hold-down means as fastened to 35
the typewriter-table quarter-sectioned.
Figure 5 is a perspective view showing the parts
which constitute the novel foot and the hold
down means spread out to illustrate said parts
in detail.
,
A typewriter l0, resting on a table II, is illus
trated in connection with the novel feet and hold
down means. Each foot includes a rubber por
tion I! which forms the base of the foot and a
felt portion l3. The rubber portion is reduced
for minimizing noise transmission, spaced from
in diameter to form a neck l4 and an upwardly
said seat in the rubber portion when the screw
facing shoulder IS. The felt portion or collar
I3 fits the neck It and is seated upon the shoul
der IS, the latter being made concave, by being
beveled downwardly from its outer edge, as
is driven tight against said cap.
'
The feet as presented by the machine may
50 rest in sockets forming part of the support on
which the machine rests, the sockets retaining
the machine against lateral displacement.
A novel hold-down device co-operates with the
sockets to retain the machine on its support as
55 when the latter is tilted to bring the machine to
shown. By the concavity of the shoulder IS,
the tendency of the felt collar to spread under
the load of the typewriter is resisted. The felt
collar I3 overtops the neck I 4 of the rubberv por
tion I! which is thereby, for the purpose of min
anaoes
imizing the transmission of noise, spaced from
the machine. The felt collar I3 is surmounted
by a cap 16‘ which embraces the periphery of the
collar, and thereby cooperates to resist the
spreading of the latter.
,
Y
..
catch 34 in retaining the typewriter, as, for ex
ample, when the latter, housed in a typewriter
desk 43, is swung with its table it to the retired
position, Figure 2, the‘ forward end oi’ the lower
plate t6 may be bent around the forward end
The top of the cap it bears againstv the ma i ‘ of the upper plate 35 to form a stop!“ for said
chine-surface to which the foot is attached by upper plate. This stop 46 prevents undue de?ec
means of a headed screw i6. Cooperating with tion of the upper plate 35 as it co-operates with
a shoulder I9 of said screw is a seat 2|, which, the catch 34 to prevent dislodgment oi the type
as indicated in Figure l, is counterbored from writer from the table. The typewriter-desk 42
the bottom of the rubber portion l2, The screw includes the conventionally indicated linkage 54
associated with the dropping and raising of the
i8 also has a shoulder 22 which bears against
table H. The foot-parts l2, l3 and i6 are pref-I
the bottom of the cap i6 when the footis at
tached to the machine, it being noted that the erably made uniform in dimensions, and, to
15 shoulder l9 at the screw-head is preferably
spaced from the seat 2! for minimizing the
transmission of machine noises to the table H.
The bottom of the rubber portion I2 may be
concave as shown at 23, Figure 1. The screw l8
has a thread 24 received in the typewriter 16.
For retaining the typewriter against lateral
displacement, the table is provided with cups or
sockets 25, in which the feet of the typewriter
are set, the sockets being secured to the table
by bolts 26.
The novel hold-down device is associated with
the front feet of the typewriter, and, according
ly, for each. front foot, there is a ?xed hasp or
plate 29 having an eye 30 and formed as indi
cated in Figure 5 to be secured by means of the
screw l6 which passes through a hole 3! of said
plate. A dowel 32 keeps the plate from turning,
and thereby keeps its eye 30 in operative align
ment with a hook-forming tongue 33 01' a catch
34 formed as indicated in the drawing. Said
catch 34 is swingable between effective and in
effective positions indicated respectively by the
full outline and dotted outline in Figure 1. For
fulcruming the catch and detenting it in either
40 position, there underlie the cup 25 for the front
foot a pair of superposed plates 35 and 36, both
plates extending forwardly from the cup 25 and
being secured, together with said cup, to the
table II by the bolt 26, each plate having a hole
31 through which the bolt passes. The plates
45
35, 36 are prevented from turning by a dowel
screw 39 passing through holes 40 in the plates,
and whose head is cleared by a hole 4| in the
cup'25.
'
The upper plate 35 is formed to present an in
50 verted V-shaped notch 42 facing the lower'plate
36, the forward end of said upper plate 35 pass
ing through a slot 43 of the catch 34, which slot,
as indicated in Figure 4, forms a pivoting edge
44 fulcrumed in said- V-shaped notch 42. Par
55
alleling said pivoting edge 44 is a bottom edge
45 of the catch 34, said bottom edge bearing
upon the top of the lower plate 36. The plate
35 may be made of spring metal, so that the
60 plates 35, 36 are resiliently pressed together
when fastened down on the table II. The por
tion of the catch forming the pivoting edge 44
and edge 45 is thus clasped by resilient pressure
between said plates 35, 36. It will be obvious
that the resilient pressure exerted by said plate
65
35 yieldably holds the catch 34 to ‘either one of
its positions which are determined by abutment
of the portion included between said edges with
opposite sides of the V-shaped notch 42. As the
70 catch‘ 34 is swung to either one of its positions
, there is momentarily a slight separation of the
plates 35, 36 as the lower edge 45 is thrown be
tween opposite sides of .the fulcrum formed by
the notch 42. In order that the resilient plate
75 35 may be buttressed as it co-operates with the
compensate for the absence of the hold-down 15
parts at the rear feet, the cups 25 for said rear
feet may rest uponshims 41.
~
For handling the composite foot as a unit
which includes either the cap l6, or both said
cap and the hasp-plate 23, the parts are held
together by the screw H. For this purpose, the
cap 16 alone, as for the rear feet, is threaded
over the screw-thread 24, or both the'cap and
the hasp-plate' 23, as for the front feet, are
Ni Cir
threaded over said screw-thread.
For facilitating the operation of attaching the
composite foot to the machine, the screw-thread
is undercut to a diameter less than the root
diameter of the screw, as at 49, to form a shout
der 53 which is co-operative with the shoulder 30
22 of the screw to retain the cap l6 and hasp
plate 29, after the latter two parts have been
threaded past- said shoulder 50. Said undercut
or groove permits the screw to be turned without
turning said parts i6, 23. At the screw-‘receiving
35
opening 3| in the hasp-plate 23 and a similar
opening 5| in the cap l6, the parts may individ
ually be thin enough at said openings to thread
over the screw-thread 24 without being provided
with a screw-thread themselves. It will be seen 40
that either the front foot including the hasp 23,
or the rear foot without said hasp, may, by the
described arrangement, be handled as a unit.
The eye 30 of the haspéplate 29 is formed in
a tongue 53 of said plate, which slopes outward 45
ly and downwardly from the top of the foot to
extend parallel with the catch 34 when the lat
ter is in its effective position. For avoiding the
transmission of sound to the table II, the ar
rangement may be such that‘, as indicated in 50
Figure 1, the catch 34 when in effective position
does not contact the hasp-plate 23.
'
Variations may be resorted to within the scope
of the invention, and portions of the improve
ments may be used without others.
'
55
Having thus described my invention, I claim:
1.‘ A shock and noise absorbing foot attachable
to a typewritingmachine or the like, including
a base-portion of rubber having an upwardly
extending, reduced neck to form an upwardly
facing circumferential shoulder, and a collar of
‘relatively inert sound-absorbing material sur-’
rounding said neck, said collar seated on said
shoulder and overtopping the neck, so that "it is 65
interposed between said rubber portion and the
machine-surface ‘to which the foot isattached,
whereby said base-portion, resting/on a ma
chine-support, sustains said machine through
the medium of said sound-absorbing collar to 70
thereby minimize the machine noises.
2. A shock and noise absorbing foot attachable
to a typewriting machine or the like, including
a base-portion of rubber having an upwardly
extending, reduced neck to form an upwardly 75
3
2,118,085
facing circumferential shoulder, and a collar of
relatively inert sound-absorbing material sur
rounding said neck, said collar seated on said
shoulder and overtopping the neck, so that it is
interposed between said rubber portion and the
machine-surface to which the foot is attached,
whereby said base-portion, resting on a ma
chine-support, sustains said machine through
the medium of said sound-absorbing collar to
thereby minimize the machine noises, said shoul
der being concave to enable the base-portion to
resist spreading of the relatively soft collar un
der the machine load.
3. A shock and noise absorbing foot attach
15 able to a typewriting machine or the like, in
cluding a base-portion of rubber having an up
wardly-extending, reduced neck to form an
upwardly-facing circumferential shoulder, and a
collar of relatively inert sound-absorbing mate
20 rial surrounding said neck, said collar seated on
said shoulder and overtopping the neck, so that
said machine-surface and into the rubber por
tion for retaining the foot laterally of the ma
chine.
6. In a machine of the character described a
shock and noise absorbing foot which includes a
resilient base-portion restable on a machine-sup
port, said base-portion formed of rubber and
having an upwardly-extending, reduced neck- to
form an open upwardly-facing circumferential
shoulder, a collar of relatively inert sound-ab
sorbing material surrounding said neck, said 7col
lar seated on said shoulder and over-topping the
neck so that it is interposed between said rubber
portion and the machine-surface to which the
foot is attached, and a stud projecting down
wardly from said machine-surface and into the
rubber portion for retaining the foot laterally of
the machine, said collar having a cap‘ ?tting the
periphery of the collar to thereby resist spread
ing of the latter under the machine load.
20
7. In a machine of the character described; a
it. is interposed between said rubber portion and ' shock and noise absorbing foot which includes
the machine-surface to which the foot is attached, whereby said base-portion, resting on a
25
machine-support, sustains saidmachine through
the medium of said sound-absorbing collar to
thereby minimize the machine noises, said foot,
including the rubber portion, having a hole,
whereby the foot is retained laterally, by means
30 of a stud on the machine.
4. A shock and noise absorbing foot attachable
to a typewriting machine or the like, including
a base-portion of rubber having an upwardly
extending, reduced neck to form an upwardly
35 facing circumferential shoulder, and a collar of
inert sound-absorbing material surrounding said
neck, said collar seated on said shoulder and
overtopping the neck, so that it is interposed be
tween said rubber portion and the machine-sur
40 face to which the foot is attached, said collar
having a cap ?tting the periphery of the collar,
to thereby resist spreading of the latter under
the machine load.
5. In a machine of the character described a
45 shock and noise absorbing foot which includes
a base-portion of resilient material restable on
a machine-support, said base-portion having an
upwardly-extending, reduced neck to form an
open upwardly-facing circumferential shoulder,
50 a collar of relatively inert sound-absorbing ma
terial surrounding said neck, said collar seated
on said shoulder and overtopping the neck ‘so
that it is interposed between said rubber portion
and the machine-surface to which the foot is at
55 tached, and a ‘stud projecting downwardly from
a base, of solid rubber, restable on a machine
support, a block oi relatively inert sound-absorb
ing material seated on said rubber base to coact
with said base to support the weight of the ma
chine, and a stud penetratingsaid rubber base
and said block and attached to the machine for
retaining the foot laterally of the machine,
whereby said block spaces and thereby insulates 30
said rubber base from the machine to substan
tially prevent the transmission of sound to said
machine-support.
.
.
8. For a typewriting machine, an attachable
composite double foot'having a main solid rub 35
bar portion which gives mechanical strength to '
the double foot and conduces to the absorption
of shock and noise, and a felt portion sufficiently
massive to substantially prevent the transmis
sion of sound, said rubber portion being sur
mounted by said felt portion, the latter being in
terposed between the rubber portion andthe
machine, said rubber portion forming the base‘
of the foot, said rubber and felt portions formed
to interlock for holding the felt portion against 45
lateral displacement relatively to the rubber base“
portion; said felt portion being capped by a
thimble ?tting tightly thereto and operating to
resist spreading of the felt under the machine
load, the cap being a part of the attachable foot, 50
and a headed screw passed up through the com
posite foot and attaching the latter to the ma
chine and also serving to locate the foot upon
the
machine.
'
'
v
_
,
WILLIAM F. HEIMOND.
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