close

Вход

Забыли?

вход по аккаунту

?

код для вставки
Nov. 5', 1946.
N. w. FE-LD'MAN
I
_
2,410,437
COMPUTER
.
Filed Sept. 19, 1945
2 Sheets-Sheet '1
FINIIII
J~
'5 j
-'
‘
'
>
'
NATHAN
BY
INVENTOR.
W FELDMAN.
.
'
.
WLW
- Ar-ronuzv.
Nov. 5, 1.946. ~
‘
@w. FELDMAN
v2,410,437.
COMPUTER '
Filed Sept. 19, 1945
2 Sheets-Sheet 2
IN VEN TOR.
NATHAN W. FELDMAN.
' ATTORNEX
Patented Nov. 5, 1946
2,410,437
UNITED STATES PATENT OFFICE‘
2,410,437
COMPUTER
Nathan W. Feldman, Newark, N. J.
Application September 19, 1945, Serial No. 617,415
3 Claims.
(01. 235-78)
‘(Granted under the act of March 3, 1883, as
amended April 30, 1928; 370 0. G. 757)
1
2
This invention relates to computers and partic
in which the ?nal answer may be expressed in
ularly to a disc computer for use in determining
percent of rated discharge capacity.
Further objects and advantages of this inven
the ampere hour discharge of storage batteries
during testing operations.
tion, as well as its construction, arrangement and
operation, will be apparent from the following
description and claims in connection with the
In testing conventional storage batteries it is
customary after charging a battery to discharge
the same at a constant rate, for example, at the
rate of about 10 amperes per hour. A record is
accompanying drawings, in which,
made of the starting time of the test, and dis
charge is continued until voltage of the storage _
battery drops below a predetermined minimum,
at which time the test is automatically termi
nated and a record of the ?nish time made.
Computation of the ampere hour discharge of
between the start of the test and the ?nish there
of, and multiplying such lapse of time by the rate
of discharge, for example, 10 amperes per hour.
The present invention provides a disc computer
in which only a single setting need be made to ‘
perform the computation. This setting consists
in adjusting the discs of the computer to indi
cate the starting time of the test and it is then
ing part of the computer shown in Figure 1.
Figure 3 is a fragmentary view in enlarged sec;
tion taken substantially along line 3—3 of Fig
With reference to the drawings in detail, the
computer forming the present invention com
prises an ampere hour disc II, a minute disc I2,
an hour disc I3 and a masking disc I4. Ampere
hour disc II is of largest diameter, minute disc
I2 is of next largest diameter, masking disc I4
is the next largest diameter and hour disc I3 is
of smallest diameter.
These four discs are ar
ranged concentrically with ampere hour disc II
possible to read the ?nishing time on the com
puter and in registration therewith will be round
the ?nal answer expressed in ampere hours.
In certain storage batteries discharge is at the
on the bottom and with discs I2, I3 and I 4 ar
ranged thereabove in that order. Discs II, I2,
I3 and I4 are mounted upon a spindle 15 (Figure
3) having an enlarged head I6 below ampere hour
disc II. A washer I‘! is disposed on spindle I5
above disc I4, and a locking nut I8 secures the
discs in place upon spindle I5.
Discs I2, I3 and M are locked together by a
cotter pin I9 having an enlarged head 20 above
disc I4, and having legs 2| which are spread apart
beneath disc l2. An arcuate slot 22a is formed
in disc I3 and cotter pin I9 extends through slot
22a whereby disc I3 may be rotated through an
are relative to discs I2 and I4.
Disc I 4 is provided with an observation opening
22 and is further provided with a series of four
openings 23, 24, 25 and 26, spaced 90° apart from
each other about the periphery of the disc. Disc
I4 is further provided with an arcuate cut away
portion 21 whereby disc I3 is accessible for man
ual rotation thereof relative to discs I2 and I4.
vrate of 10 amperes per hour for a period of ten
hours. The rated dischargev capacity is there
In such cases
the ?nally computed discharge for any particu
lar battery expressed in ampere hours is also an
expression of the percent of rated discharge ca
pacity. Thus for example a battery having a
discharge of 90 ampere hours also has ninety per
cent of the rated discharge capacity. There
fore the ?nal answer of the disc computer may
be considered either as being ampere hours of
discharge or percentage of the rated discharge
capacity.
‘
Figure 2 is an exploded view of the discs form
ure 1.
the battery involves ?guring the lapse of time
fore one hundred ampere hours.
Figure l isa top plan View of a preferred form
of the invention.
-
An object of the invention is to provide a disc
computer for use in determining the ampere
hour discharge of storage batteries during test
operations.
Another object of the invention is to provide
a disc computer in which a single setting only is
necessary to compute the ampere hour discharge
of a storage battery during test operations.
A further object is to provide a disc computer
. By way of illustration but not limitation, the
present disc computer is shown as designed for
use in connection with tests performed on stor
age batteries arranged to discharge at the rate of
10 amperes per hour. To this end ampere hour
which may be adjusted to indicate the starting 50 disc I I is graduated from a value of 90.0 progres
time of the test and on which the ?nishing time
sively in a clockwise direction to a value of 120.0
may be read, and in registration with the ?nish
through an arc of 270 degrees. Thus the value of
ing time the ?nal answer in ampere hour dis
the graduations increase by 10.0 for each 90° of
charge.
A further object is to provide a disc computer :
.
clockwise progression on disc II. For conven
ience the graduations have been extended coun
2,410,437
3
4
terclockwise beyond the 90.0 mark to a terminal
mark of 87.0 and likewise have been extended
beyond the 120.0 mark in a clockwise direction to
designed for use with batteries which are ar
a terminal mark of 123.0.
ranged to discharge to the predetermined voltage
minimum over a. period of from 9 to 12 hours
since minute disc I2 and hour disc I3 are designed
Minute disc I2 is graduated through 270 de Cl to cover such a time interval.
It is to be understood that the graduations on
grees so that each 90° corresponds to an interval
the ampere hour disc, the minute disc and the
of one hour which is divided into 60 minutes.
hour disc may be modified in suitable manner
For convenience the graduations are extended
to accommodate the computer for use with stor
Disc I3 is provided with a series of numerals 10 age batteries having rates of discharge and length
of discharge time which differ from the speci?c
from one to twelve which may be viewed through
illustrations herein,
observation opening 22 in disc I4. Rotation of
It is to be understood that various modi?ca
disc I3 may be e?ected to bring any one of the
tions and changes may be made in this invention
numerals desired into View through opening 22.
without departing from the spirit and scope
A similar series of numerals is provided beneath
thereof as set forth in the appended claims.
each of openings 23, 24, 25 and 26, and these
The invention described herein may be man
are so arranged that the time interval between
ufactured and used by or for the Government of
the numeral exposed to view through opening 22
the United States of America for governmental
and the numeral exposed through openings 23,
24; 25 and 26 will be respectively 9 hours, 10 20 purposes without the payment of any royalties
thereon or therefor.
hours, 11 hours and 12 hours. For example as
What is claimed is:
shown in Figure 1, if disc I3 is adjusted so that
l. A computer comprising a pivot, an answer
the numeral 10 is seen through opening 22, then
disc on said pivot having function graduations
the numeral 7 ‘corresponding to an interval of 9
hours will be seen through opening 23.
25 thereon representing a function which varies
with time, a minute disc on said pivot concentric
To illustrate operation of the computer assume,
with said answer disc and rotatable relative
for example, that it is desired to compute the
thereto and having minute graduations thereon
ampere hour discharge of a battery from which
in registration with said function graduations, a
the following test data has been recorded:
30 masking disc on said pivot for rotation with said
Starting time ____________________ __ 10:00 a.m.
minute disc and having peripheral openings in
Finish time _______________________ __ 7:30 p. m.
registration with said minute graduations at 60
Discharge rate __________ __ l0 amperes per hour
minute intervals and also having a random open
ing, an hour disc on said pivot between and ro
Discs I2, I3 and I4 are rotated as a unit until
tatable relative to said masking disc and said
35
opening 23 of disc I4 and the corresponding zero
minute disc and inscribed with a series of nu
minute mark of disc I2 are in registration with
merals beneath said masking disc openings
the 90.0 ampere hour mark of disc II. Disc I3
whereby when a numeral is exposed beneath said
is then manually rotated relative to discs I2 and
random
opening the numerals beneath successive
I4 until the numeral corresponding to the start
ing hour of the test run upon the battery may 40 peripheral openings will differ from said random
opening numeral so as to successively indicate
be seen through opening 22. In the example if
an
increasing time lapse in hours, an arcuate
the test were started at ten o’clock a. m., ad
slot in said hour disc, and means extending
justment would be made until the numeral 10
through said slot for locking said masking disc
showed through the opening 22 as seen in Figure
slightly beyond the 270 degree range.
1. Discs I2, I3 and I4 are then rotated as a unit
relative to disc II until the number of minutes
past the hour corresponding to the exact start
ing time of the test are in registration with the
90 ampere hour mark. In the example, since the
starting time is exactly ten o’clock a. m. no ad—
-. and minute disc together and for limiting rota
tion of said hour disc relative to said masking
disc and said minute disc.
2. A computer for use in determining the am
pere hour discharge of a storage battery compris
ing a pivot, an ampere hour disc on said pivot
having ampere hour graduations thereon, a
minute disc on said pivot concentric with said
ampere hour disc and rotatable relative thereto
justment of this nature will be made and the
zero minute mark of disc I2 will be in registra
tion with the 90.0 ampere hour mark of disc I I.
and having minute graduations thereon in regis
The ?nish time in hours and minutes is then
located on the computer, selecting the proper 55 tration with said ampere hour graduations, a
masking disc on said pivot for rotation with said
hour at opening 23, 24, 25 or 26 and then locating
minute disc and having peripheral openings in
the correct minute position clockwise therebe
registration with said minute graduations at 60
yond on disc I2 as the answer index. In the ex
minute intervals and also having a random open
ample, with a ?nishing time of 7:30 p, m., the
number 7 is seen through opening 23 and the 60 ing, an hour disc on said pivot between and r0
tatable relative to said masking disc and said
thirty minute mark clockwise therefrom is found
minute disc and inscribed with a series of numer
to be the answer index. When the ?nishing time
is correctly located on disc I2 as the answer in~
als beneath said masking disc openings whereby
when a numeral is exposed beneath said random
therewith will indicate the answer in ampere 65 opening the numerals exposed beneath succes~
dex, the graduation on disc II in registration
hour discharge of the battery. In the example,
sive peripheral openings will differ from said
the answer on disc II will be found to be 95.0
ampere hours.
random opening numeral so as to successively in
dicate an increasing time lapse in hours, an ar
It will be apparent that the computer‘is de
signed for use in connection with batteries which
discharge at the rate of ten 'amperes per hour
since the ampere hour graduations on disc II
vary by 10 ampere hours for each-hour of vari
ation on minute disc I2.
cuate slot in said hour disc, and ‘means extending
through said slot for locking said masking disc
and minute disc together and for limiting rota
tion of said hour disc relative to said masking
disc and said minute disc.
3. A computer for use in determining the am
It will also be apparent that the computer is 75 pere hour discharge of a storage battery which
2,410,437
discharges at the rate of ten amperes per hour
comprising a pivot, an ampere hour disc on said
pivot having ampere hour graduations thereon
disc and said minute disc and inscribed with a
series of numerals from 1 to 12 beneath said
masking disc openings whereby when a numeral
is exposed beneath said random opening the nu
from 90.0 to 120.0 through an arc of 270°, a min
ute disc on said pivot concentric with said am 5 merals exposed beneath successive peripheral
pere hour disc and rotatable relative thereto and
openings will differ from said random opening
having minute graduations through 270° with
numeral so as to successively indicate a time
each 90° graduated from 0 to 60, said minute
lapse of 9 to 12 hours, an arcuate slot in said
graduations being in registration with said am
hour disc, and means extending through said
pere hour graduations, a masking disc on said 10 slot for locking said masking disc and minute
pivot for rotation with said minute disc and hav
disc together and for limiting rotation of said
ing peripheral openings at 90° intervals in reg
hour disc relative to said masking disc on said
istration with said zero minute graduations and
a random opening, an hour disc on said pivot
between and rotatable relative to said masking 15
minute disc.
NATHAN W. FELDMAN.
Документ
Категория
Без категории
Просмотров
0
Размер файла
435 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа