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Oct. 1, 1946.
Filed March 5, 1943
- 2,408,592
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Oct- 1, 1946-
.Filed March 5; 1945
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‘Oct- 1, 1946-
Filed March 5, 1943
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161004;,” '4. HJCHENEAE’EMER
Oct. ‘1,- 1946.
Filed March 5, 194::
‘ I
4 Sheet’Q-Sheet 4
_ Patented Oct. 1, 1946
' , Rudolph A. Aschenbrener, Milwaukee, Wis., as-v '
--,si_gnor to The Triple Insulaire Company, Mil
waukee, Wis., a corporation of Wisconsin
Application March 5, 1943, Serial No. 478,130
'18 Claims.
(01. 273-3?) '
I Fig. 9 is a detail enlarged view of a portion of
My invention relates to improvements in bowl~
ing pin setting indicators,
the ground glass viewer used in the apparatus
The object of my invention is to provide by
shown in Fig. 8.
‘More particularly stated, it is an object of my ,
‘means of a viewer and light-transmission devices 7
upon the alley in readiness for the delivery of his
substantially transparent insert for a bowling
alley in the location where a bowling pin is to be
set whereby light from a nearby source may, by
its passage through the insert and by'its trans
Another object‘ of my invention is to so build
ence characters throughout the several views, ’
It is well known that even though a “perfect”
ball may be rolled in the game of bowling, a
'20 strike may not be attained due to the" factv that
‘the bowling pins have been imperfectly set upon
' the spots intended to receive them.
The pins,
therefore, respond in 'waysrunexpected by the
bowler andiail to clear the alley. - According to
interfere With'the playing of the game as it is, v
Like parts are designated by thesame refer
tures as to make it unnecessary to materially
change the structure of such alleys and not to
complete group of tubesto underlie the end of
‘an alley.
my equipment into'existing bowling alley struc
naturally practised.
’ Fig. 13’shows my, unitary construction of a
Another object of my invention is to provide a
mission to a viewer, indicate the accuracy with
which the bowlingpin has been “setl’
,1 -
Fig. 12_is a fragmentary View in plan showing
,a portion of a bowling pin-setting framejanda
bowling pin viewed through said frame.
the precise position of each bowling pin as set’
struction used in conjunction with mylight
invention to indicate visually to a bowler‘ by
bowling ball.
Fig. 10 is a detail in median section longitudi>
nally of the tubes at a rightangle turn in the
tubes used in my light-transmittingapparatus,
Fig. 11 is an isometric View of an elbow con
means of light transmission a visual ‘indication
to a bowler of the preciseness with which bowling
pins have been set upon a bowling 'alley{
practices'heretofore prevailingin bowling alleys
and in accord with bowling alley construction
Another object of my invention is to use re
heretofore known, the bowler has ‘been at the
?ected light at relatively long distances from the
[mercy of the negligentzlor conniving vpin setter,
pin supporting end of the bowling alley to indi
who alone is close enough to the bowling. pins to
cate the accuracy of bowling pin setting without
requirement for changing bowling alley inserts. 30 be aware of‘ inaccuracies of pin setting. I’ have,
In the drawings:
therefore, providedlthe structure shown in the
drawings as ‘means for making available to'the
Fig. 1 is a vertical, longitudinal section through
bowler an accurate chartlorviewing vframein .
av portion of a modern bowling'alley and showing
‘portions of the pin-setting frame in side eleva- ,1. which the bowler, himselL/may‘see for his", own
'Vsatisfaction‘ that the pins‘ which await his next
Fig. 2 is afsection on‘iline 2+2 of Fig‘. 1 with
a portion of the maple bowling alley broken away
to exhibit some of ‘my 'lightetrans'mitting appa
' ‘ball are accuratelyset-upon their respective spots
‘so as toproperly respond to a perlject balli'f' he is
able to deliver it.
Fig. 6with
is athe
to that shown
in Fig. in
Fig. 1 but disclosing a second alternative light
transmitting apparatus for disclosing bowling
pin-setting position by means of light re?ected
from upon the upper surfaces of a bowling pin.
Fig. 7 is a section on line l—-'I of
Fig. 8 is a section on line 8——8'of Fig. 6v and
showing most-oi the apparatus in front eleva- .
.tion, a portion of themscreen’f being broken away
to show the relative location'of the pin-setting
_ ~
contemplates,‘ any means for visually translating
Fig. 3 is a plan View of ajportion‘ of a bowling
alley and a portion of a pity at the end of the
alley with the‘ pin-setting frame removed and an
alternative form of light-transmitting apparatus
beneath the alley shown in dotted ‘lines.
Fig. ll‘is a section on-line 4'—~4 ‘of Fig. 3.
Fig. 5 is vertical section through .a portion of
a bowling alley and. an individual set of light»
transmitting equipment for one bowling pin in
' It may be said broadly of my invention that it
the‘ ‘position of a bowling pin so that i the
bowler may be aware’ of the precise pin position,
and‘! have provided" several ‘means using light
transmission'and re?ection {or making this ‘in-'
formation available to the bowler.
' ‘
‘Modern bowling alley construction includes a ’
‘foundation 20 depressed at 2| to form the ‘pit.
The vusual maple alley surface‘ 22 is supported
above the foundation 20 uponcross pieces'23
50 which are in'turn restediupon a'fals'e ?oo‘r'24
and longitudinally disposed sleepers 25. TThe al
ley terminates at 26, and the usual pit ?oor and
mat 2‘! is depressed ‘approximately ten inches be
low the surface 22 of'the alley 20.‘ At either
55 side of the alley 22 are conventional gutters 28
' and 29, and ?anking these gutters at either side
of the entire ‘structure arefkickback” boards?!)
and 3|.
_ Usually supported uponfthe kickback boards 30
and. 3], the'various makes of bowlingalley equip
ment for the setting of pins upon the alley in
clude a pin-setting frame 32 which is carried by
6D I provide a mirror 63 which when disposed
with the gate at the 45 degree angle referred to
posts 33, 34, 35,_and 36 with reference towhich
the pin-setting frame 32 is adjustably mounted
re?ects vertically the pattern of light transmitted
upon vertical slides 37 and. 38 in any conventional
manner. A handle 40, for the manual operation
through the various tubes 54 from the inserts 5|.
At a position sufficiently high upon the sup
porting structure above the pin-setting frame 32
of the pin-setting frame 32, is provided within
easy reach of the pin “boy” who may be stand
sition at the other end of the alley, I provide a
to give a clear view for a bowler at his usual po
ing in the pit 21. Brace rods or tubes 4! usually
overlie the pin-setting frame 32 and extend be
viewer‘65 comprising a re?ector or mirror set at
tween posts 33 and 34.
The bowling alley construction thusfar dis
closed is conventional, and there may be varia
tions thereof with which my bowling pin-setting
rays thrown by the re?ector or mirror 63 upon
the gate 50, and about this viewer 85 I provide a
an angle of 45 degrees with respect to the light
‘viewer box 66 open at its front margin 61 so as
to exclude extraneous light from the viewer 55.
indicator may be adapted as will become appar
15 The conveyor 65 has the form of a panel or image
ent from the following description.
receiving screen to which light rays from any one
It is common practice to inset into the surface
or more of the insertsrmay be transmitted if not
of the maple alley 22 inserts of ?ber or other
blocked by accurately set pins.
suitable, long-wearing but replaceable material
To facilitate the use of my apparatus and to
at each vspot in the alley where a bowling pin 20 prevent the gate 6 from interfering with nor
mal bowling operations, I provide a hand shaft
is set by ‘the setting frame 32. In keeping with
68 connected to a lever 59 disposed rigidly in con
this practice, I make a holeor bore 5 completely
nection with the gate 50. A spring I returns the
through the maple of the alley surface 22, and
shaft 63 to upper position whereby to close the
I counterbore the hole adjacent the surface to
gate 65 whenever pressure is removed vfrom the
receive a transparent insert 5! which is exactly
the same diameter as the bottom of a regulation
shaft 58. It is, therefore, possible for the pin boy
size bowling pin 52. I thus .provide means for
to open the gate 50 by pressure upon the shaft 53
whenever a bowler desires to see whether the pins
transmitting light through the transparent in
sert 5! and through the bore 50 into space 53 - are properly positioned upon inserts 5|.
Thus, when a pin boy ‘has operatedthe pin
beneath ‘the maple alley surface 22, but if the 30
setting frame 32 to set bowling pins 52 in their
bowling pin 52 is accurately positioned upon the
proper places upon the inserts 5!, light from any
insert 5 I, no light can be transmitted through the
source such as the usual pilot light‘ ll or any
additional or auxiliary lights such as those at 12
Beneath the maple alley surface 22 I remove
such cross pieces 23 as may be necessary for the 35 or ‘:3 may not pass through the insert, but if the
pin boy has been inaccurate or careless in his
substitution of light tubes 54, each of which ex‘
work, or the pin-setting apparatus 32 is inexact
tends from beneath one of the inserts 5| to the
‘ ts operation~,.-any pin 52 offset from its accurate
end of the alley at 26,'as shown most clearly
position will permit a sector or crescent of light to
in Fig. 2, but since the arrangement of these
tubes is of importance and since their purpose is 40 pass through the insert 5| and be re?ected by
to transmit accurately a “picture” of the light
the mirrors 55, 63, and 65, so that a bowler at
the other end of the alley would be immediately
pattern transmitted through each insert 5|, 1
apprised of the improperly set pin.
form the tubes, as indicated most clearly in Figs.
10 and 111, where it will be seen that each tube
Exactness of dimensions and accuracy in
54 in following a prescribed pattern is provided 45 translating the light image may be enhanced by
making the tubes in a unitary assembly for in
with an elbow 55 accurately constructedto re
sertion beneath the maple alley, as shown in Fig.
ceive a plane mirror 56 at an angle of 45 degrees
2. Plywood or other large sheet materials have
to the axis of the tubes 54 which enter and are
been found especially advantageous ‘in building
connected with it. Some of these tubes 54 are
so ‘disposed that their L-shape 'is‘laid horizontally, 50 up such a unit.
While the above described preferred form of
as at 51 in Fig. 2. Others are disposed with the
my invention constitutesa particularly simpli
L-shape of the angle 55 vertically disposed, as
?ed, mechanical embodiment of my fundamental
at 58 in Fig. 2.
concept and is a relatively economical adaptation
In the preferred form of construction in ‘ac
cord with my invention I may make any tubes 55 of that concept to existing bowling alley equip~
ment, I have provided an alternative form, as
shown in Figs. 3 to 5, wherein mirrored and el
strong unit as shown in Fig. 13 to indicate the
bowed light tubes comparable to tubes 54 in Fig.
alley. The tubes 5-4 are made of substantial ma
terial and of such dimensions as to comprise
l are installed beneath the alley surface 22 at
adequate substitute vfor the cross pieces 23 which 60 545, and it will be noted that in this construc
I remove from beneath the maple surface 22 of
tion the tubes 545 extend from the inserts and
the alley. Thus, ‘they constitute a substantial
vertical bores 5|—'-5'8 laterally of the alley to a
support for the alley, and if they are arrayed
point beneath gutter 29 where a hole 15 through
'therebeneath, they present an appearance at the
the gutter is overlaid by a mirror 16 at an angle
end 26 of the alley of an ‘aligned group of light 65 of 45 degrees to the axis of tube ‘54!! whereby to
transmitting tubes.
pass light upwardly to a viewer 65!! comprising
The end or the alley at 26 is conventionally
a mirror in a box 65!] positioned at some height
closed by a board 60 which I convert into a
the gutter as shown in Fig. 4.
terminal gate, vas shown most clearly in Fig. l,
Each of the bowling pins 52 therefore functions
the hinges '6! of this gate being provided at the
in the same manner as the bowling pin 52 func
lower margin thereof and ya ‘stop 62 being pro
tions in the Fig. 1 and Fig. 2 construction to black
vided to‘ accurately limit the opening movement
54 in square cross section and build a complete,
of the gate whereby to dispose the gate at an
angle of 45degrees to the longitudinal axis of
the alley. Upon the interior surface Of. the gate
out the passage of light through the transparent
insert 5|, and each insert and bore 55 beneath
each pin is provided with its tube 5443 and suitable
2,408, 5.92
a 5
black top of the pin and a surrounding band of
light re?ected from the side walls of the pin to
the ground glass 8| where the pattern of light
mirrors for passing any light rays from the insert
5| to the mirror or ‘viewer 650. '
In'this construction, the tubes 540 are disposed
in.the space 53 beneath the alley surface 22, and
made thereby appears as indicated in Fig. 9. If
vthe tubes 540 need not be of. greatstructural.
strength, since the cross pieces 23 may be re
tained to support the maple alley;
‘It will be noted that whereas in the Fig. 1 and
Fig. 2 construction it- is relatively impractical to
, a pin is oifsetfrom its correct position, as indi
cated at 83 in vFig. 9, the black spot indicating
the position of the top of the pin does not appear
centrally of a light band but appears offset in a
crescent of light 84, and the ground glass picture
array the tubes 54!) so as to maintain a continu
at 8| is re?ected in the mirror or viewer 55l for
ous sequence from 1 to 10 in the appearance of
easy vision by the bowler.
the respective pin inserts in the viewer, it is pos
' :I
1. In bowling equipment provided with bowl
sible in'the Fig. 3 and Fig.4 construction to so
direct the tubes 540 that consecutive alignment ' ing pins and an alley having a pit at one end
from 1 to 10 of the viewed bowlingpins-I to it
may be maintained for easy vision of the bowler.
In the Fig. 3 and Fig. 4 construction, means
must be provided for a view by the pin boy, and
-I, therefore, dispose a back view mirror‘ ‘I1
bracketed at 18 from the box 650 at such an angle ,
thereof, a mirror disposed to re?ect light vfrom
beneath the alley and means built into the alley
for transmitting light to the space beneath the
, alley through the area for supporting bowling
pins, whereby the pins block out areas of light- '
transmitting means to indicate the position of
said pins.
as to be within easy-vision of the pin boy from
2. A bowling alley having space therebeneath
his position in the pit‘. It will be noted that the
and a hinged closure member at the end of the
angular disposition of the back view mirror ‘H
alley to close said space, light-transmittingin
is such that it does not block the line of vision
of the bowler when he attempts to “read” the, 25 serts in the alley whereby to admit light to'the
space and bowling pins to‘ be spotted ‘on the in
viewer 650.
serts whereby to block passage of light to the
‘A second alternative construction using the
space, an image receiving viewer within the sight
transmission of light as a fundamental concept
of a player at the other end of the alley and an
for the purposes of my invention is shown in Figs.
optical, system for separately directing a beam
6, '7, 8 and 12 where it will be seen that I have
used the principle of light transmission without
perforating the maple alley and without changing
the usual ?ber disks upon which the pins 52 are
i set.
In this alternative construction, all of my
equipment is installed above the pin-setting
of light from each unblocked insert to the viewer
when the closure member is in a speci?c open po
sition, said optical system including light re?ect
ing means carried by the closure and adjustable
thereby into and out of operative relation to the
frame 32, and the light picture ultimately to be
3. A bowling alley having space'therebeneath
seen by the bowler at his end‘ of the alley is that
which is picked up by light tubes 54! in which
and a hinged closure member at the end of the
alley to close said space, light-transmitting in
the angularly disposedfmirrors, to initially piclc 40 serts in the alley whereby to admit light to the
space and bowling pins to be spotted on the in
up the view of the pin 52, are disposed directly
serts whereby to block passage of light to the
above the hole 80 in the pin-setting frame 32
_space,-said closure member having re?ective
above each pin_. Fig. 12 illustrates the area-of
‘means _ thereon whereby in certain > positions
the pin, setter 32 above each pin 52., It will be
45 thereof to give- evidence of stray light entering
, understood
up by mirrors
view of eachthroughtubes
pin 52‘ aspickedf,
.said space.
4. In equipment of- the character described an
ultimately reaches a ground glass 8! above a mir
alley and pins to be set thereon at precise loca
rored viewer 65l , but to illustrate a. particular
tions, ,transparentinserts vat each of said loca
light-transmission sequence, I shall refer particu
tions wherebyto pass light. to the space below
larly to bowling pinNo. 5. , Each pin has a black-f.
the alley where a pin is inexactly positioned ‘with
.ened circular tip at 82,, and the side walls of the
respect to the insert, and means vfor picking up
pin are light colored as isthe usual’practice. The
and‘ transmitting said passed light to a viewer,
picture, therefore, as seen by. mirror 56!] directly
.said' viewer being positioned to be viewed by a
above pin No. 5, is thatof the darkened, spot 82
surrounded by a band of light reflected'by the-_:, player at one end of the alley.
5. In a construction of the class described, an
light-colored side walls of ‘the pini52. This pic
alley with space beneath an end thereof, a clo
ture is transmitted horizontally through a tube
sure member for said end, and light-transmitting
5“ to a second ‘mirror 562 set parallel to mirror
means in said space and through, the alley to-in
56!) whereby to transmit the light through the
extended tube 54! to mirror 563 and thence to so dicate the position of bowling pins on said alley,
and‘ light-re?ective means positioned to exhibit
mirror 564 above the ground glass 8|. The an
said light-transmitting means when the closure
gular transmission of light thus ‘directed is nec
a is- opened.
essarybecause of the standard equipment such
as the brace rods or tubes M which would inter- '
‘6. In a construction of the class described, an
by any standard equipment, and a straight ini
tial light transmission to the ?rst mirror in the
elbow at 565 requires'no angular transmission up,_
alley having an end section thereof provided
with a space therebeneath, light-transmitting
means for said section whereby to indicate the
positions of objects on the alley, and light
transmitting tubes of substantial structural
strength positioned in said space beneath the
to that
' alley whereby to constitute a support for said end
fere with direct, straight, light transmission for.
this particular pin No. 5.
, 7,
Other- pins such as pin No. Ill are not overlaid
Each of the pins numbered from sllto _l0,is,
therefore, overlaid by initial mirrors suchas the
one at 560._ Suitable light-transmitting mirrors
7. The combination with a bowling alley pro
' vided with a set of bowling pins to be positioned
and tubes are provided to carry the picture of the 75 at onerend of the alley, of an optical system
.for enabling a player cat the other :end of zthe
alloy to visually determine thesetting ofitheipins,
:said system including mirrors each ‘mounted in
an individual housing having .a light {receiving
‘ingan alley :?oor provided "at :one ‘end t'porti'on
with pin centering.spotsgof'optical ‘systems in
dividual to the respective spots‘an'd eachfinclud
ing a light receiving'end'portion havingarmirror
"opening in a position of alignment with a prop- “ ' positioned co-axially withv one of the spots, each
‘erly centered pin in playing position on‘the alley
‘floor, and reflecting means for transmitting
images from said mirrorsito the eyes of theiplayer
‘at the other end of the alley.
8. The combination with .a bowling alley, of '10
an associated viewing chamber open to the vView
of a player in normal playing position 'at one
endof the alley, an image receiving viewer panel.
in said chamber, and an optical system for ‘di
"recting‘rays‘of light from‘ portions of improperly .115
set pins at the other end of the alley to said
‘image receiving viewer panel, said system being
‘so'arranged that rays of light from‘thesamepor
'tions of the pins when‘accurately set :will be
excluded ‘from said system by the pins.
9. The combination with a bowling alley ‘having
apertures in the alley v?oor provided ‘with light
"transmitting pin supporting ‘inserts at their‘up
‘per ends, each'insert having a top'surfa-ce sub
stantially equal in diameter to the base ‘of a .25
bowling pin, and sets of mirrors arranged ‘to
direct individualized ‘beams of light ‘passing
such mirror being *angularly disposed to receive
light from a particular‘pin position and ‘to direct
such light along the respective‘optical'system to
ward the eye of an observer.
14. The combination'with a‘bowlingfalleyhav
ing a'floor provided at oneend'portion =with1pin
centering spots, said spots ‘comprising transparent
vmeans above which the respective pins fare
adapted to‘be ‘centered, of ‘at least one optical
system comprising means for indicating to an
observer at a remote point whether the cseveral
pinsare centered ‘above their respective spots,
said system including’re?ecting‘means below vthe
transparent portions of the spots, re?ecting
means above 'the said ‘alley vend portion, and
re?ecting means for‘ transmitting from the ?rst
re?ecting means to'the second re?ecting means
light penetrating ithe‘transparent‘portions of the
spots, together with means above the spots for
the illumination of the pins and spots.
15. The combination with a bowling alley ?oor
having at oneend portion a set of pin ‘centering
{through the respective inserts to the eyes of a
spots with'tran'spa'rent portions normally covered
‘player at the other end of the alley.
by pins when the pins are properly set, of indi
10. The combination with a bowling alleylpro Q30 vidual optical systems ‘comprising {means for
vided with pin centering spots at one end ‘of the
directing the light from respectivespots toward
'alley floor, a panel-like viewer within sight of
a common observation point-said alley being pro
a player at the other en'dof the alley andadapted
vided with means 'for‘illuminating from above
to'receive and display to ‘the ‘player images of
the pins the respective transparent spot portions
‘pins on said spots, open ended light'transmitting 35 not covered by the pins.
passageways provided with opaque side walls,
16. The combination with 'a'bowling alley hav
each passage having a receiving end portion in
ing a spot with which a pin is to be centered,
'line with one 'of the pin centering spots and
of an optical system for indicating ‘to a remote
another portion extended at an angle thereto,
observer whether the said pin ‘is centered with
light re?ecting mirrors for directing ‘beams of 40 respect'to its respective spot, saidsystem com
‘light from the ‘vicinity of ‘said spots axially
prising at least one "mirror means disposed ad
through the angularly extended portions of said
jacent the projected axis of the properly posi
passageways and ultimately‘to the viewer Where
tioned pin, said mirror means‘ being angularly
by a player can visually determine the setting
disposed to re?ect ‘light “from the vicinity of
of the pins with reference to said spots.
such pin.
11. The combination with a bowling alley vhav
17. The combination with a ‘bowling alley pro
ing one end portion of the alley floor provided
vided at one of its, ends with means de?ning
with pin centering spots, open ended passageways
predetermined locations for pins, of a detector
each having a light receiving end portion axially
system individual to the respective pins for 'in
aligned with one of the spots and another por
dicating'to an observer at a remote point whether
tion extending at an angle thereto along a line
the respective pins are properly centered ‘at their
parallel to the corresponding portions oi’v the
respective locations, each such detector system
other passageways, mirrors mounted in said'pas
comprising a light ray receiver centered with
'sageways for directing rays of light 'from the
respect to the proper pin, vtogether ‘with source
receiving portion axially through successive-por :55 means ‘for light rays arranged, to deliver lightizo
tions of each passageway and cooperating means
the respective'receivers when any of the respec
‘for directing images from such mirrors to the
tive pins is ‘displaced from its proper location.
eyes of a player at the other end of the alley.
18. The combination with a bowling-alley hav
12. The combination with a bowling alley hav
ing a floor portion provided ‘with designated
ing one end portion of the alley ?oor provided 60 areas with which the'respective pins are to be
with ‘pin centering spots, an image receiving
located of ‘indicating means ‘for showing to a
viewer panel disposed within sight of a player
remote observer whether the respective pins are
at the other end of the alley, and an optical
properly located with regard to their respective
system for transmitting images of the bowling
areas aforesaid, ‘said indicating'means compris
pins to said viewer panel, said system including 65 ing light means at one side of the respective
‘open ended passageways having opaque side
areas, light receiving means at the ‘other ‘side
‘walls supported above the alley floor with light
of therespective areas, the pin being adapted
receiving end portions axially aligned with the
to intercept at least apart of'the light passing
centers of the respective spots and other por
from the vsource means to the ‘receiving means
tions extending at an angle thereto, ‘and an 70 of each area, and means for renderingapparent
gularly placed mirrors for directing beams of
to the remote observer whether the light inter
light from the receiving portions axially of ‘the
cepted by each pin is in accordance with 7a pre
other portions and to the viewer panel.
13. The'combination with a bowling alley haV
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