Improvements in Library Shelving.
Year: 1895

page_text: Date of Application, 22nd Oct., 1895-Accepted, 7th Dec., 1895
1
WCATION.
Improvements in Library Shelving.
We,
WILLIAM HERMAN WINSLOW and FRANCIS AXEL WINSLOW, both
citizens of the United States of America, and both residing at 368 Catioll
Avenue, Chicago, Cook County, Illinois, USA., Gentlemen, do hereby
declare the nature of this mvention and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
stateinent and accompanying drawings
Our invention relates to certain improvements in library shelving, the purpose of
which is to produce a neat, compact, strong and ornamental library shelf which
shall be easily, and readily adjustable to accommodate the different sizes of
books.
To such end the invention consists in a certain new and improved construction
which is lustrated in the accompanying diawings and described and defined in the
Specification and claims, respectively.
The dianings cousist of 16 bgmes, of which,
Figure 1 is a side elevation of a series of shelves supported upon three uprights
and bul accordance with the preferred form of our invention Figure 2 is an
end view of the same;
Figure 3 is a portion of Figue 2 shown upon an enlarged scale and broken away
at one place to reveal parts that would' otherwise be hidden,
Figure 4 is a horizontal section in line 4-, of Figure 3,
Figure 5 is an enlarged view of a portion of the middle upright in Figure 1;
Figure 6 is an enlarged broken hoiizontal section in line 6-6, of Figure 5;
Figure 7 is a vertical section in line 7-7, of Figure 4, but showing, in addition
to the parts seen in the latter figure, a portion of one of the shelves,
Figures 8 to 13, both inclusive, show modified forms of the middle upright,
Figue 14 is a view similar to Figure 3 showing an additional' improvement;
Figure 15 is a horizontal section of the same in line 15-15, and'
Figure 16 is a vertical section in liro 16-16.
Looking at Figures 1 and 2, which show a complete section of shelving, the
same will be seen to consist of three uprights, A, B, and C, supported between the
Hou, D, and a top piece, E. Projecting laterally from these puights are a series
of brackets, F, upon which rest the shelves, G.
Our invention relates particularly to the uprights and the brackets and the
means provided for adjusting the brackets upon the uprights and holding them in
place when in proper adjustment Looking at Figures 4 and 6; one of the end
uprights will be seen in Figme and the middle uptight in Figure 6, the former
consisting of a bai, a, having upon its opposite sides two channel tron guides, a¹, a²,
the edges of which are bent toward cach other to form a dovetailed groove. The
muddle upught seen in Figure 6, consists of a bar, a³, somewhat wider than the
bai, a, and living upon each side two guides exactly like that seen in Figure 4.
The achete, F, are supported against the channelled guides and are provided
with heads, or slides, /, to test against the edges of these guides, lugs, to slide
up and down therein and bolts, f³, having heads, f, (see Fig 6), adapted to slide
up and down in the dovetaileo giooves, but too laige to be drawn therefrom
These bolts pass through holes, ff, the brackets and are threaded in the latter
hole and beyond it have squared ends,, to receive a key as is shown in Figures 4
and 6. A small pin, limits the movement of each bolt inward toward the
pright.

page_text: At certain places, as, for instance, at the top and bottom, the channelled guides
are cut away, as seen at as, in Figure 5, to allow the heads, f, of the bolts to be
inserted
In erecting the shelving the heads, /, of the bolts, f³, are inserted in the
holes, a, and the guiding lugs, f, f, between the edges of the guides. The
bracket is then moved up or down to the proper place, the key applied to the
squared end and the head of the bolt dawn outwardly as far as possible, which
clamps the head, 7, of the bracket tightly against the channelled guides. The
shelves are then laid upon the bolts, as seen in Figure 7, and and by means of then
weight in preverting the cuidental loosening of the latter
The modifications shown in Figures 8 to 13 me intended to show the different
ways of forming the guides as well as dillerent ways of constructing the same, the
common feature of all of them being that they contam an undercut groove in
which a properly shaped head may be adjusted vertically and clamped where
desued
Figures 14, 15 au 16 show an additional improvement, the purpose of which 1-
to enable a bracket to be applied to the pughts at any point In these figures
the bolt, which is lettered, turns freely in an eye at the outer end of the bracket,
but is prevented hom moving longitudinally therein by means of a head, 1
10 , upon
one sule and a pin, 11, on the other At the inner end of the bolt it is screw
threaded in a nut, 1, which is shown as fitted to a square hole in the bracket so as
to be movable back and forth in the same Beyond the bracket this nut 15 of
flaring shape horizontally, as seen in Figure 15, to prevent its withdrawal from the
upughts, a. The thickness of this nut, however, is not sufficient to prevent its
insertion into o removal from the upright when turned 90° from the normal
position, and this furnishes an easy way of applying the bracket to any portion
of the pughts, the saine consisting in merely giving the bracket a quarter
turn, inserting the nut into the upught and then turning it back into its normal
position
Having now particularly described and ascertamed the nature of our said myen-
tion, and in what manner the same is to be performed, we declare that what
we claim is
1. The combination in a stincture of the class described, and with a series of
uprights having vertical undercut grooves, of a series of shelf brackets having
guiding lugs entering said grooves and a clamping bolt having a head adapted to
slide vertically in said grooves and be held against withdrawal by the overhanging
edges thereof substantially as described.
2 The combination in a stincture of the class described, and with a series of
upughts having vertical undercut grooves. of a series of shelf brackets resting
against the outside of the uprights and having clamping devices bearing upon the
inner sides of the overhanging edges of the grooves and adapted to clamp the
backets tightly against the outer edge thereof, substantially as described
3. The combination with a series of uprights having undercut grooves, of a selleg
of brackets supported upon said uprights by means of a clamping device having
horizontally adjustable portious extending into the grooves and engaging with the
overhanging edges thereof, said portions having sufheient lateral extent to prevent
then withdrawal hom the grooves, but being thin enough vertically to permit
of then insertion or removal therefom when given a quarter tunn and means for
preventing the turning of said portions in the brackets themselves, substantially
as described
Dated the 7th day of October 1895
WILLIAM HERMAN WINSLOW
FRANCIS AXEL WINSLOW.