close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2123360

код для вставки
July 12, 1938.
w. E. HARRIS
2,123,360
APPARATUS FOR OBTAINIHG LINEAR MEASUREMENTS
Filed June 10, 1936
Wiliz'ami?érrz's
2
arcasco
transverse shelf 2! formed with the frame‘ ‘I im
mediately to the rear of the wheel i.
and may be very rapidly taken with the oper
ator of the instrument‘ ‘standing or walking in
Arising from the frame ‘I, adjacent to the side‘
an erect and comfortable position.
of the wheel i, is a stationary pointer 22 which
is adapted to be registered withv the zero indi
cation of the fractional units of linear measure
the preferred form- of the present'invention,
nevertheless, it will be understood that the same
is subject to considerable modi?cation and-struce
tural variation without departing from the es
vxnent i3 provided on the side of the wheel i.
Thus, in obtaining a given linear measurement,
the upper end of the pointer 22 is alig?ed with
in
sential features of the invention as the latter
have been expressed in the following claim.
the zero indication on the scale 63 and the
counter mechanism 88 is also set at zero. The
instrument is then advanced along the linear
.Whatisclaimed is:
V
10
’
’
ing reels actuated to record such actuation and
indicate they same through the sight opening 20.
tending laterally from said wheel vand movable
equivalent unit ‘of measurement, the counter
15 mechanism is tripped once and its numeral hear
If the distance undergoing measurement termi
nates in a fraction of the given unit of measure
20 ment, such fractional distance; may be indicated '
by noting the position of the numerals on the
scale l3 with respect to the pointer 22. In this
manner, both feet and inches in. a given meas
urin'g operation will be clearly indicated and ca
therewith, a roller carried by said pin, and a
counter mechanism carried by said frame, said
, counter mechanism being provided with a rock
pable of being readily noted by the operator.
By the construction of the instrument, the
same is capable of being readily employed by
20
ing shaft, an arm secured to the outer end of
said rocking shaft, a ?exible engaging element
secured to the outer end of said am and pro
jecting into the path of movement of said roller
whereby rotation of said wheel will impart mo .25
tion'to'said arm through contact with said en- ~
ant who is ‘quite commonly employed when'meas
gaging element, whereby when the arm secured
to the rocking shaft reaches the limit of its
movement, continued motion of the pin will ?ex
the engaging element without strain on the arm 80
urements are taken with the use of linear stand
until the pin passes thereover. '
but a single operator in the making of measure
ments, thus dispensing with the use of an assist?
30
,’
In a ‘portable device for measuring and indi‘
cating linear distances having a frame, a hand
grip formed in connection with said frame at
one end thereof, a freely‘rotatable surface'en 15
gaging wheel carried by said frame, a pin ex
surface to be measured. With‘ each foot, or other
25
’
While I have described what I consider to be
ard measuring tape. Also, with the use of the
present invention, linear measurements of any " '
WILLIAM E.‘ HARRIS.
Документ
Категория
Без категории
Просмотров
0
Размер файла
306 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа