It is also claimed in the specification that instead of the needle type ordinary type may be used in combination with an inking ribbon if so desired.
Early efforts of Wm. S. Burroughs
One of the next attempts to produce a recording-adder was made by Wm. S. Burroughs, whose name sixteen years later was used to rename the American Arithmometer Co., now known as the Burroughs Adding Machine Co.
The first patent issued to Burroughs, No. 388116, under date of August 21, 1888, like the machine of Barbour and Baldwin, was designed to record only the final result of calculation.
On the same date, but of later application, another patent, No. 388118, was issued to Burroughs which claimed to combine the recording of the numerical items and the recording of the totals in one machine. Some of the drawings of this patent have been reproduced. ([See opposite page].)
Machine of Early Burroughs Patent
Referring to the [drawings of the Burroughs patent], it will be noted, that in outward form, the machine is similar to the Burroughs machine of today. To give a detailed description of the construction of the machine of this Burroughs patent would make tedious reading and take unnecessary space.
General scheme of Burroughs’ first inventions
The principle involved in the mechanism for recording the items is very similar to that of the Pottin invention; the setting of the type wheels being effected as in the Pottin machine by means of segment gears which the depression of the keys serves to unlatch, and acts to gauge the additive degree of their movement.
Burroughs used the inking form of type proposed as an alternative by Pottin in his patent specification instead of the needles shown in the [Pottin drawings].