Adding-Machine. Page: 4 of 4
2 sheets, 2 p. : ill. ; 23 cm.View a full description of this patent.
Extracted Text
The following text was automatically extracted from the image on this page using optical character recognition software:
145. We set down the 5, and instead of at-
tempting to remember or to add in the 140, I
have provided means for instantly adjusting
the dial to proceed with the next column, as
5 follows: The dial I is free to rotate upon shaft
a, and is held in any desired position by
means of a button or similar fastener, j, on the
frame clamping the edge of the dial to the
frame. Having set down the 5 units, as
io stated, loosen the dial and turn it till the
pointer indicates 14; then clamp the dial and
proceed to add to this the column of tens. Sup-
pose the sum to be 96. Set down th'e 6 as tens
to the left of the 5 and reset the dial with the
15 index at 9, and proceed in this manner until
the figures are all added, when the last sum
indicated on the dial is set at the left of the
other figures, giving the correct result.
By means of my temporarily - fixed dial I
20 amu ablefirst to read the result of one addition,
and then to quickly adjust the dial to the po-
sition of the index - pointer, either to the 0
point or to the number tobe carried, as stated,
so as to proceed with another addition from
25 that point -without disengaging any gear-
wheels or turning back the index.
What I claim as my invention, and wish to
secure by Letters Patent, is-1. The combination, with a toothed wheel
fixed on a shaft to rotate in a frame, of a dial 30
having indices corresponding to the number
of teeth in said wheel mounted to revolve
upon said shaft, and means for securing said
dial to said frame, substantially as described,
whereby the shaft of the toothed wheel may 35
revolve in said dial when the latter is fixed,
or the dial may be loosened to revolve on.said
shaft.
2. The combination, with the toothed wheel
A, the shaft ca, secured therein and journaled 40
in the frame B, the index or pointer IT, se-
cured on said shaft, the arm C, journaled on
said shaft, the pawl c on said arm, adapted to
engage the teeth of wheel A, the lever E, the
connecting-rod D, and the digital levers G, 45
each pivoted near its center, to engage lever
E, of the graduated dial I, concentric with
shaft a, and the clamp j, as and for the pur-
pose specified.
ALBERT KING BARTMORE.
Witnesses:
J. L. MCCALEB,
J. L. WTALLA.
Search Inside
This patent can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Patent.
Barmore, Albert King. Adding-Machine., patent, February 12, 1884; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth170702/m1/4/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.