Improvements in Lengths-dividing Scales.
Year: 1891

page_text: Date of Application, 12th Mar., 1891
Complete Specification Left, 11th Dec. 1891-Accepted, 23rd Jan., 1892
PROVISIONAL SPECIFICATION.
Improvements in Lengths-dividing Scales.
We, EMIL GOLDSCHMITT of 72, Erlanger Strasse of Bayreuth, in the Kingdom
of Bavaria, Germany, late Pay-master, and GOTTFRIED GOLLER of 19, Kulm-
bacher Strasse, of Bayreuth, in the Kingdom of Bavaria, Germany, Mechanician,
do hereby declare the nature of this invention to be as follows:-
The object of our invention is to provide means for dividing lengths into equal
parts in a most handy and quick manner, and at the same time for reading off the
length of such divisional pait.
For this purpose we combine two rows of small narrow bars crossing each other
and being connected by pins or rivets in such a manner, that each bar is pinned to
three or more bars of the other row and when two neighbouring bars are drawn
apart of each other, all the rest of the bars will separate to the same distance
between each neighbouring one. All that is required to do, is to pull out the scale
to such a length, that the point of the first bar coincides with one end of the line to
be divided, and the point of another bar being indicated with the same number in
which the line is to be divided, coincides with the other end of this same line.
measuring-scale is fixed to the centre of the primary bars of both rows which
scale by aid of a slide, fixed to the centre of the second bars, will show off the
exact length of the searched partition.
A
In order that our invent on may be well understood and anybody having read
this Specification will at once be able to make use of our apparatus we refer to the
accompanying drawing, in which :
Fig. 1 is a dividing-scale drawn to full size and in a closed up position,
Fig. 2 is a part of the same pulled out,
Fig. 3 is the measuring-scale shown in a front-view and in a cross-section, and
Fig. 4 is a staff for holding the apparatus together, when laid aside.
A is the complete dividing-scale consisting of the two sets of parallel bars, of
which those of the upper set are marked with a, 1, 2, 3 and so on, and the last
one, in this case the 36th, with b. Every bar is pinned to five bars belonging
to the other set by single pins or rivets, which are just tight enough to permit
a slight turning of the same. The centre-pin of the bar is a spring-knob n
carrying the measuring-scale e and also permitting the fastening of the protecting
staff p. The measuring scale is provided with a slots and carries a slide f,
which is connected to the bar e by its centre-pin d. The slide f is turned down
on its ends, so as to embrace the scale c, and the pin d, projecting through the
same, travels in the slot 8. The upper edge of the slide is bevelled, so as to
be able to distinctly read the length, this edge shows off on the scale. The
scale is divided into inches or millimeters or any kind of measuring desired, and
the length read off will always be that of a division, since the slide travels along
with the bar e, while the scale remains attached to the neighbouring bar 5.
order to enable a locking of the entire dividing-scale in any position we provide a
tightening-screw 1, which may replace any of the pins connecting two bars. The
staff illustrated in Fig. 4 is merely to hold the entire instrument together, when
not made use of, and is fastened by slipping the two holes o o' over the spring-
knobs n n¹.
9
In
The following example will explain the manipulation of our length-dividing-
scale. A length of 660 millimeters is to be divided into 30 equal parts. The
point of the bar a is held at the end of the line to be divided, and the dividing-
scale is drawn out, so that the point of the bar indicated by the number 30, arrives
at the other end. The bars always being parallel to another, the intermediate

page_text: ones will divide the line into 30 equal parts, and the length of such a part may be
read off from the measuring scale by the bevelled edge of the slide, which in this
case will show off 22 nullimeters. By tightening the screw 1, the apparatus will
be firmly held together in this position, and when made of hard and strong material,
all divisions may be at once marked on the line so divided, when on soft material,
such as soft wood, or the like, by merely applying a slight pressure, or the
divisional strokes are marked separately with a pencil or scriber by hand. The
instrument illustrated on the drawing will permit a dividing of a length of about a
meter into 36 parts. The smallest partition a line may be divided in, is slightly
larger, than the breadth of a single bar, which bars of course must all be equally
broad, the dividing-scale illustrated permits a dividing no smaller than 5 milli-
meters. We may of course construct dividing-scales of any size or containing any
requisite number of dividing-bars. We also may apply the instrument for dividing
round or hollow objects, since being made of thin flat-bars the same is extremely
flexible and we particularly point out, that we may also fix the dividing-scale
between the legs of a compass or dividers.
Dated this 11th dow of March 1901
EMIL GOLDSCHMITT.
GOTTFRIED GOLLER.
By Rayner & Cassell,
37, Chancery Lane, London, W.C., Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Lengths-dividing Scales.
We, EMIL GOLDSCHMITT of 72 Erlanger Strasse, Bayreuth, in the Kingdom
of Bavaria, Empire of Germany, late Pay-master, and GOTTFRIED GOLLER of
19, Kulmbacher Strasse, in the same town, Mechanician, do hereby declare the
nature of this invention and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
The object of our invention is to provide means for dividing lengths into equal
parts in a most handy and quick manner, and at the same time for reading off the
length of such divisional part.
For this purpose we combine two rows of small narrow bars crossing each other
and being connected by pins or rivets in such a manner, that each part is pinned to
three or more bars of the other row, and when two neighbouring bars are drawn
apart of each other all the rest of the bars will separate in such way that the
distance between each two neighbouring bars is the same throughout the scale.
The bars belonging to one and the same row are all parallel to another, whatever
may be the length to which the scale is drawn out. All that is needed to do in
order to divide a line into any number of parts, is to make the point of the first
bar to coincide with one end of the line to be divided, and the point of the bar
bearing the number in which the line is to be divided with the other end of said
line. The intermediate bars will then divide the line in the required number of
equal parts. A measuring-scale is fixed to one of the pins or rivets uniting two
bars, and guided in the direction in which the scale is extended through a slide
fixed to a joint of two bars, corresponding to the first, to which said measuring
scale is secured. The latter is designed to indicate the exact length of the searched
part, and owing to this scale being arranged in the same direction in which the
extension of the device takes place, the divisional parts of the measuring scale are
equal to another; thus the same is constructed like an ordinary scale, whereas
hitherto the scales employed for the same purpose had to be divided in parts the
lengths whereof increased from one end of the scale to the other, whereby the con-
struction of the same was rendered difficult and expensive.
In order that our invention may be more readily understood, we will proceed to

page_text: describe the form in which we prefer to execute the same, reference being had to
the accompanying drawing, in which similar letters denote similar parts.
These
The scale consists of the bars or legs A formning the frame of the instrument,
and pivotted to one another by means of a pin, a, a screw nut, b, being also
provided at the joint in order to lock the scale in any position. One of the bars A
is pointed at its end and constitutes the first of the dividing bars, being marked
with O. To the free ends of said bars A are fixed by pins or rivets e four small
and narrow bars d, the length of the same being such that their free ends are in
line with each other when said bars are laid parallel to each other.
bars d are joined to similar ones e in such manner, that two sets of bars are formed,
each parallel to one of the bars A, and each bar of one set being pinned to five
bars of the other set. The bars e belonging to one set are all of the same length,
equal to that of the longest of the bars d parallel to the same, except four bars of
each set, lettered B in the drawing, which extend to the bars A and are linked to
the same by means of pins. The bars d and e which are parallel to the bar A
marked with O are provided with pointed ends and are numbered in succession 1, 2,
3, 4 and so on. To one of the pins c the measuring scale C is fixed and guided in
a slide secured to a corresponding pin distant from the first by two bars. Said
slide is provided with a circular opening g, the edge of which is bevelled, and with
a pointer h, in line with the pin to which the slide f is secured. As the measuring
scale C is intended to indicate the length of separating two neighbouring bars e,
and as the fixed end of said scale and the pointer are distant from another twice
this length, the parts of the scale must be twice their true length. Thus one inch
in reality will be represented by two inches on the scale, though for convenience's
sake, the numbers on the scale will not indicate the length on the scale, but the
distance between two adjoining bars e, as already stated. It is apparent that by
the described arrangement the lengths can be read off with great accuracy.
represented in the drawing, the scale may show the lengths both in inches and in
centimeters.
As
The manipulation of our length-dividing scale may be explained by the following
example. A length of 672 millimeters or about 26 inches and 5 lines is to be
divided into 24 equal parts. The point of the bar A is held at the end of the line
to be divided, and the dividing scale is drawn out so that the point of the bar
indicated by the number 24 arrives at the other end of the line. The bars always
being parallel to another, the intermediate ones will divide the line into 24 equal
parts, and the length of such a divisional part will be indicated by the pointer of
the measuring scale C, and in this case will be found to be 28 millimeters, or a little
more than 1 inch and 1 line. By tightening the screw-nut b, the apparatus will be
firmly held in this position, and the divisions may be marked on soft material, such
as soft wood or the like, by merely pressing into the same the points of the rods d
and e, made of hard material, or the divisional strokes are marked separately by
hand with a pencil or scriber. The instrument illustrated on the drawing will
permit to divide a length in any number of parts up to 26. Of course a line cannot
be divided into parts smaller than the breadth of a single bar, which are all
equally broad. The instrument may also be applied for dividing lengths on round
or hollow objects, since it is extremely flexible owing to its being made of thin flat
bars. The dividing-scale may also be fixed between the legs of compasses or
dividers.
We do not confine ourselves to any particular construction hereinbefore described
and shown on the drawing, and may alter the number of bars d and e, and the
number of points in which they are pinned to another, as well as the manner of
securing the extensible part to the bars A, and the scale C to the bars e or d,
without departing from the nature of this invention. The essential features of the
same are that the rods d and e should be fixed to another at three points at least,
and that the measuring-scale C should be arranged in the same direction in which
the extension of the rods d and e takes place.

page_text: Having thus particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what
we claim is :-
In a lengths-dividing scale:
1. An extensible part consisting of two sets of flat bars crossing each other, and 5
each bar of one set being connected to three or more bars of the other set, the bars
of each set always remaining parallel to another, and one set of bars being pointed,
in combination with a measuring scale fixed to one of the bars and guided through
a slide secured to another bar, in the direction in which the extension takes place,
said measuring scale indicating the length between two neighbouring points, for the
purpose as described.
2. The herein shown and described arrangement of legs A. bars B, d and e,
pinned by pins c, and locked by screw and nut b, and of scale C with slide ƒ and
pointer h, for the purpose as described.
Dated this in day of Dec
EMIL GOLDSCHMITT.
GOTTFRIED GOLLER.
By Rayner & Cassell,
Agents for the Applicants.