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Патент USA US2411348

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Nov. 19, 1946.
c, |_, TURNER
2,411,348
PIN CLEARING APPARATUS
Filed Aug. 11, 1944
2 Sheets-Sheet 1
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NOV. 19, ‘1946.
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- 2,411,348
PIN CLEARING APPARATUS
Filed Aug. 11, 1944
2 She‘ets-Sheet 2
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Patented Nov. 19, 1946“
2,411,348
UNITED STATES PATENT OFFICE
2,411,348
‘
PIN CLEARING APPARATUS
» Charles L. Turner, Long Beach, Calif., assignor to
Leighton J. Turner, Long Beach, Calif.
Application August 11, 1944, Serial No. 548,973
4 Claims. (01.273-54)
2
This invention relatesto devices for automat
Fig. '7 is a longitudinal sectional detail taken
ically removing fallen pins from bowling alleys
during play.
on the line 1-1 of Fig. 5.
The drawings disclose the apparatus arranged
An important object of the invention is to re
in operative position with relation to bowling
pins 8, which, as indicated in Fig. 1. are set in
duce to as small a minimum as possible the work
required to be done by attendants in bowling al
playing position in a pin zone at the rear end of
a bowling alley 8. The apparatus includes a car
riage l0 and comprises a platform in the form of
a metal base plate l2 having at its sides upstand
leys where the game sometimes known as ten
pins but more often known as bowling is played.
A further object, therefore, is to provide bowl-,
ing alley equipment which may be operated or
controlled by the players themselves for remov
ing bowling pins which have been struck down
and without disturbing pins which remain stand
ing supporting flanges l4‘. Near each end of each
?ange Hi there is pivoted at- l5 thelower end of
an adjacent supporting link l6 which is in turn
‘pivoted upon the outer end of a cross rod l8
which is mounted in the lower ends of upper sup
Another object is to provide equipment which 15 porting links 20 pivotally connected at 22 to
may be automatically moved into position over
brackets 24 secured in any appropriate manner to
the zone in which the bowling pins are set up
an overhead support 25. In this manner, the
at the rear of a bowling alley, and may be auto
four corners of the carriage l0 are supported
matically operated to engage and hold in posi
by four sets of pivoted links l6 and 20. In order
tion pins which remain standing and to sweep 20 that the carriage l0 may be raised and lowered
from the pin zone or region of play into the usual
to and from operative position with respect to
pit at the rear those pins which are down, in
the bowling pins 8 positioned in- the pin zone, a
cluding those which have fallen into the usual
cable 26 is provided, the cable having two
gutters at the sides of the alley.
branches 21 whose ends are connected with the
A further object is to provide means which may 25 carriage II] as by being secured to the middle
be so operated as to permit standing pins to be
portions of the cross rods l8. The cable branches
cleared, as well as fallen pins, when it is desired
2'! are passed over pulleys 28 carried in brackets
to reset the whole group.
30 mounted above the rods l8 on the overhead
It is also an object and feature of the inven
support 25. The cable_26 extends to the vicinity
tion to provide means which -will hold standing
of the players’ position at the forward end of the
pins and yielding means adapted to be moved
alley 9 Where it passes over a pulley 3|. For actu
past and around standing pins while sweeping
ation by the players, the free end of the cable
fallen ones from the pin zone.
26 may be provided with any appropriate means,
From the following description and accom
such as a manipulating ring 32, which may at the
panying drawings, other objects and features of
same time be employed to anchor the end of the
the invention will become apparent to those
cable 26 whereby to hold the platform I12 in ele
__ skilled in the art. In the drawings, which are
vated inoperative position, as indicated in Fig. 1.
for the purpose merely of illustrating one em
For this purpose, any retainer 33 to receive the
' ing in upright position.
bodiment of the invention,
-
ring 32 may be employed, the retainer 33 being
Fig. 1 is a side elevation of apparatus possess
shown as mounted on a,‘ wall 34.
ing the present improvements, the apparatus
-
being shown as elevated to an inoperative posi
The under side of the platform i2 oi’ the car-_
riage I0 is provided with a plurality of longitudi
tion, but poised for lowering to an operative posi
tion;
nally extending spaced pin ‘engaging or‘ clamp
ing strips 35 which preferably are somewhat
Fig. 2 is principally a plan view as indicated 45
by the line 2—2 of Fig. 1;
yielding and constructed of cushioning vmaterial,
such as felt or rubber pads, whereby the upper
Fig. 3 is a rear elevation as indicated by the
ends of standing bowling pins 8 may be clamped‘
lines 3—3 of Figs. 1 and 2;
against the alley floor 9 when the carriage is low
Fig. 4 is a side elevation similar to that of Fig.
ered into the operative position shownin Figs. 4
l and showing the apparatus in operation;
50 and 5. In the construction shown, the pin en
Fig. 5 is a fragmentary cross-sectional detail
taken on the line 5-5 of Fig. 4;
Fig. 6 is principally a fragmentary plan, some
. gaging strips 35 are mounted upon the lower faces
, parts appearing in section, as indicated by the
line 6-6 of Fig. 5; and
3
55
of wooden strips 36 secured to the under side of
the metal base plate or platform 12, as best shown
in Figs. 5 and 7.
Arranged for travel between the pin clamping
2,411,348 ‘
4
3 .
strips 85 are several series of resilient sweep
rods 81 ‘which carry at their lower ends resilient
sweeps 88 that are adapted to engage and sweep
which are held upright by reason of engage-i
the sweeps 88, which as shown are relatively
broad pieces of polygonal shape, are of resilient
material which likewise will yield sufficiently to
pass around held standing pins 8 and between
them, as best indicated in Fig. 6, while possess
ing at the same time su?lcient stiffness to force
ment by the clamping strips 85, as indicated in
the fallen pins from the alley ?oor. Thus, the
from the alley fallen bowling ‘pins by yielding,
movement around and between standing pins
Figs. 4, 5 and 6. There are several sweeps in
sweep. rods 81 may be steel rods, and the sweeps
each series, four being shown by way of ex
88 may be made from sheets of semi-hard rub
ample. Each series of sweep rods .81 is at 10 ber or light spring steel or other appropriate ma
tached to an endlessbelt 48, as by means of any
‘terial.
‘
‘
appropriate coupling 41. The belts 48 pass‘
As the belts 48 advance and carry the sweep
around drums 42 which are mounted on shafts
rods 81 and the sweeps 88, those pins which are
48 pivoted in ears 44 extending outward from
easily removable will be removed by the corre
the ends of the upstanding side walls I4 of the 15 sponding leading sweep or sweeps. Fallen pins
base plate l2. For the purpose of driving the
that are located in front of clamped upright
drums 42 and their belts 40, an electric motor
pins, such as indicated at the right of Fig. 6, may
45 is mounted at one end of the base plate l2,
not'be entirely freed from their position by the
corresponding leading sweeps but will be gradu
as by means of an extension I2a, the motor shaft
being geared at 48 to the adjacent shaft 48, and 20 ally moved around the standing pins by succes
corresponding drums 42 being secured thereon
sive sweeps so that in practically all instances
in driving relation. In order that actuation of
anyvpin will be removed at least by the time the
the sweeps 88 may be controlled by the players,
last sweep has passed through the pin zone.
an electric supply conduit 41 is led from the mo
tor 45 by any suitable route to an appropriate
switch 48 which may be secured upon ‘the wall
25
84 for convenient manipulation by the players
when desired.
.
overlie the usual gutters 50 provided at the sides
I
Each‘ of the belts 48 carries several sweeps 88
' .in order that a sweeping operation not com
pleted by a leading sweep may be gradually
completed by following sweeps.
Otherwise, the motor 45 may be allowed to pass
the sweeps through the pin zones as many times
as necessary to clear fallen pins. As indicated
in Fig. 5, sweep rods 81 .and sweeps 88, which
of bowling alleys, are somewhat longer than ~
30 those which'overlie the pin zone.
This greater
length facilitates removal of pins which have
As shown, the
fallen into the gutters, so that they, as well as
sweeps 88 are located along only a portion of
other fallen pins, are swept into the pit 52 at
the rear of the bowling alley.
the respective belts 48, so that, when the sweeps
~88 are in inoperative position, they will be dis
posed above the. carriage l0, and also so that,
All fallen pins having been cleared, the player
operates the electric switch 48 at such time as
when the carriage I8 is lowered to cause the
to stop the sweep rods 81 and sweeps 88 in ‘the
upper position illustrated in Fig. 1. Otherwise,
‘ 8, sweeps will not be present to disturb pins
the switch 48 may include automatic means-which
which remain standing, whereby the upright pins 40 causes the motor 45- to-be stopped only when
may be engaged and clamped in position with
the sweeps are-in thevdesired _ upper position.
clamping strips 85 ‘to engage the top of the pins
out interference.
>
In connection with the present pin clearing
apparatus, its normal inoperative position is
illustrated in Fig. 1. Here, the sweep rods 81
to raise the carriage l8 into the- inoperative po
sition of Fig. 1,- whereupon the ring 82 is engaged
over. the retalning'means :8. It will be apparent
that, ,if' it should be desired to sweep all pins
and the sweeps 88 are directed upward toward
the overhead support 25 and the carriage i0 is
held suspended well above the bowling pins 8
which initially are positioned in the pin zone at
including the standing pins from the alley, the
lowering: of the, carriage l0 may be stopped at a
I position somewhat above that illustrated in Figs.
. the rear end of the bowling alley 8, as indicated‘ 50
in Fig. 2. This position of the carriage I8 is
normally maintained by means of the cable-26
and its branches 21 through the medium of
the retaining means 82 and 88.
4, and 5, so that, when the motor 45 is started and
the sweeps 88 move through the pin zone, all pins
- willbe swept into the pit 52.
While preferredemlbodiments of the present
_
Operation
in
— Ul
invention have been shown and described, nev
ertheless, it is intended to cover all such modifi
cations as fall within the scope of the ‘appended
In employing the apparatus for the purpose of
claims.
.
clearing pins which have been struck ‘down by
I claim as my invention:
the players, for example as indicated in Fig. 3,
1. In combination in pin clearing apparatus:
the retaining ring 82' will be manipulated by a 60 a carrier adapted to be moved to and from posi- '
player to lower the carriage l0 into a position
tion above a'pin zone of a bowling alley: a plat
such as indicated in Figs. 4 and 5 where the, , form included in said carrier; a plurality of spaced
clamp strips 85 rest upon the tops of the upright '
‘pins and clamp them against the floor.. The
player then actuates the switch 48 to start the‘
electric motor 45, whereupon the belts 48 are
driven through the medium of the drums 42 and
the sweeps 88 are moved in the direction of the
arrows of Fig. 4 into sweeping contact with the
fallen pins.
The sweep rods 31 are made of a
resilient material which will permit them to yield
and pass around and between the held stand
ing pins, the material, however, being sufficiently
still to provide the resistance necessary to sweep
the fallen pins from the pin zone. Similarly,
‘
Thereupon, the cable. 28 may be pulled in order ‘
longitudinally arranged pin retaining means
adapted to retain standing pins in upright posi
tion and carried byv the under side ofsaid plat
form; and a plurality of sweep means carriedby
said platform and disposed to move longitudi
nally between said pin retaining means and to
remove fallen pins.
2. A combination according to claim 1 where
in said carrier is provided with drums, and said
sweep means includes belts mounted on said
drums and yielding devices projecting from por
tions of said belts and adapted to ‘force fallen
pins from said pin zone.
2,411,848
5
3. A combination according to claim 1 wherein
the pin retaining means is adapted to rest upon
the tops of standing pins and clamp them against
the alley ?oor.
4. In combination in bowling pin clearing ap
paratus: a, carriage; means for supporting said
carriage in suspended position over a, pin zone;
means to raise and lower said carriage between
inoperative and operative positions; means on
said carriage to retain upright pins in position;
removing means on said carriage including a plu
rality of spring arms arranged‘ to thread their
way between pin positions, and resilient means
on said arms adapted to yield when contacting
upright pins and to engage and sweep fallen pins
from the pin zone; and means to actuate said
removing means.
CHARLES L. T.
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