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Патент USA US2125504

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Aug. 2, 1938.
c. E. KARST
2,125,504
SOUND PRODUCING ATTACHMENT FOR ROLLER SKATES
‘Filed Sept. 16, 1936
’ \JVENTOR.
ATTORNEYS.
2,125,504
Patented Aug. 2, 1938
YUNITED STATES PATENT OFFICE
2,125,504
SOUND PRODUCING ATTACHMENT FOR
ROLLER SKATESv
Clarence E. Karst, Cincinnati, Ohio, assignor to
The Brunho?' Manufacturing Company, Cin
cinnati, Ohio, a corporation of Ohio
Application September 16, 1936, Serial No. 101,120
'7 Claims. (Cl. 116—61)
This invention relates to roller skates. More
particularly, the invention is directed to the com
bination, with roller skates of sound producing
tality selected, e_ g. bell, siren, or similar means.
The volume of sound thereafter produced by the
instrumentality is controlled largely by the speed
of the skater.
The drawing illustrates a preferred embodiment of the invention in which a bell is utilized
It is an object of the present invention to pro
vide the combination of a roller skate and a sim- 7 as a primary sounding instrument. This bell is
struck during movement of a rotary striker oper
ple, sturdy, sound producing apparatus.‘
Another object of the invention is to provide ated by and during actuation of a ground wheel
journalled in a stationary tail or bracket piece,
an alarm mechanism embodied in a roller skate
with its tread out of ground contact, but movable
of the conventional. type,,and controlled inopera
into ground contact through alteration of the po
tion by the skater, through foot movement, dur
sition of the skate from normal position.
ing movement of the skate.
Referringto the drawing more particularly, the
Still another object of the present invention is
to provide a novelty apparatus which is universal skate is indicated generally at I. This skate,
in respect. to attachment'to roller skates of the which may be of the usual design and construc
conventional variety, by mechanical adjustments tion, comprises a foot plate 2, from which jour
and operations, simple enough ‘to be understood nal brackets .3 extending downwardly to carry ax
les 4—4 on which roller wheels 5 rotatively are
and performed readily by children.
Further objects and advantages will appear in mounted.
Theaxles of the skates preferably are housed
the following speci?cation, andrin the drawing in
v _ instrumentalities operable by foot. movement of
"5*
n
91 a
. .
20
the skates.
I
which:
cording to the present invention.
'
“5
2
0
Figure 2 is a side view similar to Figure 1, but
and are provided with shoulders ‘I in the conven
tional manner of construction. One of these axle
shoulders 1 preferably is used as the abutment 25
showing the skate in the position for producing
for mounting the sound producing equipment.
sound.
The rest of the elements of the skate proper fol
low the usual lines of construction, and need not
be described in detail for this reason.
One form of sound producing apparatus con- 30
structed in accordance With the present inven
tion for universal attachment to any of- the types
of roller skates available at present is indicated
generally at 8. The combination of the skate
with this apparatus preferably is as follows:
35
A tail piece or bracket plate 9 is provided with
Figure 3 is a rear view of the skate shown in
Figure 1..
30
0
within sleeves 6 engaging the journal brackets 3,
~
Figure 1 is a side view of a skate equipped ac
25
5
Figure 4 is a sectional view taken onv the line
4-4! of Figure l.
'
Figure 5 is a sectional view taken on the line
5—5 of Figure 3.
Figure 6 is .a perspective view showing the
35 sound producing attachment of the present in
vention.
_
Brie?y stated; the present invention. comprises
the combination with a roller skate, of sound pro
ducingapparatus having a ground wheel nor
40 many out of the range of the tread or ground
level of the roller skate, but adapted to be actu
ated by friction contact with the ground during
canted-movement of the skate. Otherwise stated,
the invention comprehends a roller skate having
45 a sound or noise producing equipment adapted to
be-operated through a ground. wheel positioned
for actuation b-y canting. of the skate from nor
mal tread position.
During the period of actuation of the ground
59 wheel the sound apparatus is driven or operated
frictionally either to sound alarm, to signal or to
satisfy the natural tendency of children to enjoy
the noise or sound. The type of sound produced
by the device, its ,tone quality and its volume are
'55 determined initially by the type of instrumen
a bore ID at one extremity for engagement over
an axle 4 of the skate proper, intermediate the
shoulder l and the wheel 5, of the axle on which
the bracket is to be mounted. ‘The bracket plate
is disposed over the axle was to abut the sleeve
shoulder ‘I. The bracket plate at the locality ad
jacent the bore in preferably is of reduced di
mensions, to clear the extremities of the journal
bracket 3.
45
A. plurality of clinch lugs or teats H are dis
posed concentrically around the bore 10 prefer
ably in slightly spaced relation. These teats are
adapted to bite into the annulus at the shoulder
‘I when the tail piece engages the axle, to provide 50
positive locking of the tail piece in the intended
position, as the nut I2, (which conventionally is
used to hold the ‘wheel -5 in position on the axle)
is tightened.
These teats H preferably are positioned to pro- 55
.
2
2,125,504.
vide biting surfaces extending conically toward
the aperture 59, ?rst to facilitate centering of the
tail piece over the axle, and onto the annulus of
the shoulder, and secondly, to facilitate positive
locking of the tail piece to sleeves or shoulders
of different diameters. Thus, the series of conical
teats shown in Figure 5, which concentrically sur
round the aperture l?, in combination with cor-
responding indentures which these teats form in
10 the shoulder annulus during tightening of the nut
12, provide a mounting which is positive, univera
sal and self-centering in respect to sleeves of
counter-turned shoulder annuli of varying di
ameter. It is obvious that this mounting of the
15 bracket plate to a conventional skate is simple
to perform, and requires the use of no more tools
than are required to remove and replace the
wheels of the skates themselves. Onthe other
hand, however, other suitable means for attach
20 ing the sound equipment to the skate proper may
be substituted for the means disclosed. Thus the
sound equipment may extend fore or aft the skate
in position suited to actuation of the apparatus
by canting movement of the skate from normal
2.5
39
tread position.
,
the spur gear 23 mounted on shaft 65 on which
the bell M is carried. A rotary type striker 24 is
, mounted for rotation with the spur gear 23.
During rotation of the striker hammer elements
25 centrifugally are thrown into contact with a 10
“ lug 26 extending inwardly from the bell Hi.
When the skate of the present invention is in
the normal tread position the ground wheel l8
clears the tread and the sounding device is in
operative. At thewill of the skater the toe is 15
lifted by rocking movement on the back wheel of
‘the skate for actuation of the‘ground wheel, and
soundis produced as long as the skate remains in
this position. It should be understood, of course,
that the sound equipment may be mounted at the 20
front of the skate rather than at the rear in
which instance, the actuation of the device is con
trolled by forward rather than rearward canting
motion.
7
’
Having described my invention, I claim:
The tail piece 9 preferably is stiffened with a
1. The combination, with a roller skate, of a
marginal flange l3, and a bell I4 is mounted
bracket plate ?xedto the skate, a ground wheel
within this ?ange in a position spaced from the Y journalled on the bracket plate with its tread out
mounting bore ill for clearance purposes. The
of ground contact and adapted to be grounded
bell threadedly is carried on a stud i5 extending
rigidly from the tail piece 9. The-tail piece 9 is
mounted on the skate so that the bottom portion
of the marginal ?ange l3 clears the ground dur
ing normal skating movement.
A bracket clip It extends from the tail piece 9
35
in spaced relation on the side of the tail piece
opposite the bell, to carry a stud or jack shaft H
on which a ground wheel l8 rotatively is mounted.
The groundvwheel, which preferably is rubber
40 tired, as at lea, is journalled at the tail piece with
its tread out of ground contact, but adapted to be
grounded for traverse and actuation by altera
tion of the position of the skate, in the manner
shown in Figure 2.
45
'
drive.‘ A suitable wedging action is provided in
the relationship of slot to stub shaft shown in
Figure 1.
The stub shaft 2!] extends through the tail
piece 9 to carry spur gear 22 which meshes with
‘
The shaft ll over which the ground wheel I8 is
mounted preferably is carried in slots l9—l9 in
the clip support it and in the tail piece 9 in cor
responding locations. A stub shaft 28, driving
the sound equipment indicated generally at 2!,
50 is journalled for rotation in the bracket clip It
and in the tail piece 9 for frictional engagement
thereof vby the ground wheel during its period of
movement. When the skate is canted, the shaft
ll moves to the upper limiting extremity of slots
55 l9—! 9 to limit canting movement of the skate.
Thus, in the arrangement which is shown, the
ground wheel is brought into frictional contact
with the tread of the skate Whenthe forward por—
tion of the skate is tilted upwardly by foot move
60 ment of the skater. During this tilting movement
the ground wheel ?rst comes into contact with
the tread, then the play in the slots in which the
shaft H is disposed is taken up, and the ground
wheel then frictionally drives the stub shaft 2B
65 actuating the sound producer 2|.
It is preferable to position the slots in the
bracket clip and‘ tail piece angularly with respect
to the longitudinal axis of the support clip it in
which latter the stub shaft is disposed. This
70 angular position through which the axle If is
movedcauses the ground Wheel 58 bindingly to
engage the stub shaft 28 rather than at right
angles. This arrangement reducesthe amount .of
slippage of the stub shaft in respect to the ground
75 wheel and provides a much more positive friction
25
upon canting of the skate, and a sound producing 30
apparatus mounted on said bracket and having
a shaft frictionally contacting the tread of the
ground wheel for actuation thereby.
2. The combination, with a roller skate, of a
bracket plate ?xed to an axle of the skate, a 35
ground wheel journalled on the bracket plate
with its tread out'of ground contact but adapted
to be grounded upon canting of the skate, and a
sound producing apparatus mounted on said
bracket plate and having a shaft frictionally 40
contacting the tread of the ground wheel for
actuation thereby.
'
3. A soundproducing attachment mounted on
a roller skate having an axle counterturned to
provide a shouldervcomprising, a bracket plate 45
having a bore, a plurality of teats spaced con
centrically around said bore to provide locked
engagement of said plate with said axle of said
roller skate, a ground wheel mounted for rota
tion on said bracket plate with its tread extend 50
ing beyond the margin of the same, and a sound
producing instrumentality carried by said bracket
plate and having a driving shaftfrictionally en
gaging the tread of said ground wheel.
'
4. _A sound producing attachment mounted on 55
a roller skate having an axle counterturned to
provide a shoulder comprising, _a bracket plate
having a bore, a plurality of teats spaced con
centrically around said bore. to provide locked
engagement of said plate with said axle of said 60
roller skate, a ground wheel mounted for rota
tion on saidybracketplate with its tread extending
beyond the margin of the same, and a sound pro
ducing instrumentality mounted on said bracket
plate opposite said ground wheel and having a 65
driving'shaft, journalled in said bracket plate,
frictionally engaging the tread'of said ground
wheel.
I
5. A sound producing device for attachment to
a roller skate for actuation by canting of said 70
skate from, normal tread position, said device
comprising a bracket plate having a bore for en
gagement with an axle of said skate, and having
a stiffening flange, a groundwheel mounted for
2,125,504
rotation on said bracket plate with its tread ex
tending beyond said ?ange for driving, and a
sound producing instrumentality, mounted within
said ?ange, and having a driving shaft friction
ally engaging said ground wheel.
6. A sound producing attachment for a roller
skate comprising, a bracket plate having a bore
for engagement with an axle of said roller skate,
a clip support extending from said bracket plate
10 in spaced relation therewith, a shaft carried in
said plate and clip support, a ground w‘heel
journalled on said shaft, and a sound producing
instrumentality carried by said bracket plate
3
and having a driving shaft frictionally engaging
the tread of said ground wheel.
'7. The combination, with a roller skate having
an axle counterturned to provide an abutment
shoulder, of a bracket plate having a bore for
engagement with said axle of said skate, a plural
ity of teats spaced concentrically around said
bore, and indented in said shoulder, a ground
wheel journalled on said bracket plate and sound
producing apparatus having a shaft frictionally 10
engaging the tread of said ground wheel, the
sound producing apparatus carried by said
bracket plate.
CLARENCE E. KARST.
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