Improvements in the Attachment Bosses of Cycle Saddles.
Year: 1899

page_text: Date of Application, 23rd Sept., 1899
Complete Specification Left, 10th Jan., 1900-Accepted, 24th Mar., 1900
PROVISIONAL SPECIFICATION.
Improvements in the Attachment Bosses of Cycle Saddles.
We, JOHN BOULTbee Brooks, Managing Director, and JOHN HOLT, Works
Manager, both of J. B. Brooks & Company Limited, of Criterion Works, Great
Charles Street, in the City of Birmingham, do hereby declare the nature of this
invention to be as follows:
This invention relates to attachment bosses of cycle saddles, of that type in
which rotating washers are employed in conjunction with a cross clamping pin
and the body or clip part of the boss for securing the frame wires or frame
members to the boss and the boss to the saddle pillar or L pin.
The object of this invention is to more effectually prevent the inadvertent
slipping of the parts after clamping. Teeth or serrations are usually employed
upon the contiguous faces of the washers, clips or other elements to engage or
interlock with one another, but these teeth are liable to be stripped or blunted
when the parts are rotated for adjustment upon one another, unless their faces
are considerably separated and further, they do not permit of a fine adjustment,
or of adjustment to an extent less than the pitch of the teeth.
In order to obviate this stripping of the teeth and at the same time to provide
means whereby an infinitely fine relative adjustment of the parts may be obtained,
we propose to construct a saddle boss in the following manner: -
The cheeks or faces of the body or clip part of the boss have sunken or recessed
faces so as to provide an outside annular flange, whose inner periphery is plain
and either straight or undercut, against which, the toothed or serrated outer edges
of locking plates located within recesses formed across the inside faces of the inner
frame-clamping washers come, and embed themselves into the said circular flange,
which is preferably of softer metal than the bolts or plates themselves. The
middle parts of the said inner washers have coned collars surrounding the central
bolt piercings, adapted to impinge. when the elements are drawn together by
screwing up a nut or nuts or the bolt, against other inclined planes on the locking
plates or bolts, which are thereby forced outward into the flanges, thereby securing
the washers to the body of the clip.
Dated this 22nd day of September 1899.
Improvements in the Attachment Bosses of Cycle Saddles.
We, JOHN BOULTBEE BROOKS, Managing Director, and JOHN HOLT, Works
Manager, both of J. B. Brooks and Company, Limited, of Criterion Works, Great
[Price S:1.1

page_text: Charles Street, in the City of Birmingham, 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:—
This invention relates to cycle saddle attachments and has for its object to
effectually lock the parts in any desired position so as to prevent their inadvertent
slipping, and at the same time permit of an infinitely fine tilt adjustment being
obtained.
For this purpose some of the parts are constructed with cones or inclined
surfaces, which surfaces when made to travel over each other cause one or more of
the parts to grip the boss circumferentially as tightly as may be desired, and
thereby clamp the frame and all the component parts of the attachment or boss
together. The arms of the saddle frame are arranged in recesses in washers or
their equivalents in the usual manner symmetrically on opposite sides of the main
body of the boss through which the L pin or pillars of the cycle passes. By using
inclined or coned surfaces the use of small teeth on the faces of the washers which
teeth allow only of intermittent tilt adjustment and are liable to become blunt or
broken is obviated. The cheeks or faces of the body or clip parts of the boss
have sunken or recessed faces so as to provide an outside annular flange, whose
inner periphery is plain and either straight or undercut, against which, the toothed
or serrated outer edges of locking plates located within recesses formed across
the inside faces of the inner frame-carrying washers come, and embed themselves
into the said circular flange, which is preferably of softer metal than the bolts or
plates themselves. The middle parts of the said inner washers have coned collars
surrounding the central bolt piercings, adapted to impinge, when the elements
are drawn together by screwing up a nut or nuts on the bolt, against other
inclined planes on the locking plates or bolts, which are thereby forced outward
into the flange, thereby securing the washers to the body of the clip.
Figures 1 to 5 show in detail that form of the invention in which one of the
coned or inclined surfaces is part of the frame carrying washer.
Figure 1 represents a transverse vertical section.
Figure 2 is a side elevation of the said attachment with the frame carrying
washers or clamping plates removed, and looking towards the face of the body
or clip part in the direction indicated by the arrow in Figure 1.
Figure 3 represents the several component parts of the attachment separately
or dis-assembled, some of them in section and the others in elevation.
Figure 4 is an elevation of the inner side of one of the inner frame carrying
washers.
Figure 5 is an elevation of two of the locking plates or bolts.
The cheeks or faces a¹, of the body or clip part a, of the attachment are sunken
or recessed at a³, so as to provide, on each facel an outside annular flange ³,
having a plain inner periphery at, against which the toothed or serrated outer
edges g², of a series of locking plates or bolts g, located and sliding within
recesses, formed across the inside faces of the inner frame clamping or frame-
carrying washers f, come and embed themselves.
The middle parts of the insides of the said washers fare provided with coned
collars f³, surrounding the central piercings f, through which the screwed ends b³.
of the cross pin b, pass, the said collars f, being adapted to impinge against
other inclined planes g', on the inward ends of the locking plates or bolts g, FO
that on pressure being applied the said bolts are driven outwards against the
flanges of the cheeks and their serrated ends are made to embed thmselves into
the metal thereof, thereby securing the frame washers to the body of the clip in
such a manner as to effectually lock the several parts in their set positions, thus
preventing their inadvertent slipping after adjustment.
The frame wires h, of the saddle are located within keep grooves f¹, on the outer
sides of the washers f.
Instead of having the coned collars formed upon or carried by the inner sides

page_text: of the frame washers f, it is obvious that they may be formed separately therefrom
as shown at 3, in Figure 6 and forced home between the inclined ends of the
locking bolts, by the said washers, which act as thrust plates for transmitting
the motion of the clamping nuts.
We find that the serrations upon the outer ends of the locking plates may be
dispensed with as the frictional grip is sufficient to prevent slipping even when
the ends of the plates are smooth.
The number of locking plates 9 may be varied as desired, and may be independent
of each other or may be joined together so as to form a complete ring broken at
one point, the expansion of which ring by means of the coned surface effects the
locking.
Instead of employing coned collars projecting from the inner faces of the
thrust plates, and arranging the locking bolts to work and be confined within
inkings or channels on the inner sides of the said plates it is obvious that they
may be worked within gaps cut in the thrust plates, which gaps have inclined
planes at their inner ends coming against and adapted to act upon, the inclines
of the said bolts.
Figure 7 is an elevation of the frame carrying washer formed according to this
last arrangement, and showing the said gaps with the inclined surfaces f
In order to retain the locking plates or bolts in position before the parts are
tightly clamped together, and to prevent their inadvertent detachment when the
nuts and washers are removed, plates or keepers such as i, (Figure 8) may be
employed. These keepers i, consist of thin metal discs fitted on and being free
to rotate around necks or collars on the fares of the boss, as represented in
Figure 9, which shows a complete section of a clip with the bolt retaining keepers
in position. The said necks a, surround the holes in the cheeks and are
rivetted or bushed over the discs to secure them to the clip, while the plates are
gapped at , to form guides for the locking plates to radially work within, but
the edges of the said gaps are arranged to overlap lips or small flanges g
(Figure 10) formed along the inner edges of the said bolts g, which are thereby
secured against inadvertent detachment.
Instead of the cones or inclined surfaces being carried on the frame carrying
washers they may be formed upon the faces or cheeks of the boss through which
the cross pin passes, and the thrust plates may be flat faced to bear directly against
the outer sides of the locking plates but have recesses f, formed on their inner
sides in which recesses the locking plates slide (Figures 11 and 12).
When the coned or inclined surfaces for the working of the locking plates are
carried by or formed upon the body of the clip, it is obvious that the fingers ³,
on the clip (Figure 1) may instead be formed on the fiame washers as in Figure 13,
The recesses for the locking plates also being formed in the body of the clip.
In Figures 11 and 13, the cones may be constructed separately from the clip.
Instead of forming inclined planes or coned surfaces on the opposed part of
both elements, they may be formed either only upon the ends of the locking bolts,
or only upon the thrust plates or the cheeks of the clip, as the case may be, and
instead of the peripheries of the annular flanges as being straight or plain they
may be undercut and the ends of the bolts may be suitably chamfered, so that
the action of the device is of a clutching character.
In attachments for saddles having sheet metal framings, the outer washers may
be dispensed with and the clamp nut or nuts may abut directly against the framing,
whilst we may likewise dispense with the outer washers in connection with wire
frames in which case the nut or nuts may have shoulders which bear against
the frame wires for securing them to the inner washers. Further, we need not
provide keep grooves on the outer sides of the washers for carrying the frame
members, but may employ other means such as pegs for fixing the said members
in relation to their washers.
In some types of saddles the washers may be made fast to, or be formed as parts
of, the frame sides, which may be of pierced sheet metal set on edge, and be

page_text: provided on their inner sides with channels or gaps for the reception of the locking
plates or bolts and with inclined planes for forcing the same into their locking
positions.
Instead of the locking bolts being operated simultaneously with, and by the same
means, as the closing of the clip around the L. pin or seat pillar, "as herein
described, we may arrange for these operations to be performed separately and by
independent screws or nuts.
The form of the main body of the boss as shown in the figures is the well
known U-shaped clip or body, but it is obvious that our improved system of
locking is applicable to all forms of saddle attachments in which frame gripping
or frame carrying washers or plates are employed; for example, an eyebolt and
loose pillar gripping cheeks as in Figure 14.
Instead of the locking plates being forced by the inclined surfaces against
the inside of the flange on the clip, it is obvious that by suitably arranging the
opposed inclined or coned surfaces the locking plates or bolts may be drawn
inwards instead of forced outwards by the action of tightening the nut on the
bolt in which case a projecting flange on the outside of the locking plate could
be arranged to grip the outside edge of the body of the clip
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is :—
First
In cycle saddle attachments, securing the saddle frame to the boss
by causing one, two or more inclined surfaces formed upon adjacent parts of the
boss to slide over each other whereby one or more of the parts of the boss is or
are made to firmly grip another part of the boss circumferentially so as to clamp
the whole together substantially as described.
Secondly In cycle saddle attachments, securing the frume to the clip or
equivalent body part by sliding plates or bolts forced into locking contact with
Hanges or abutments on the said clip or body by means of inclined planes or cones
operated or operating through the medium of thrust washers and screw nuts or
their equivalents substantially as described.
Thirdly: A cycle saddle boss having a main body part, on opposite sides of
which is an arm or pin, a frame carrying washer strung upon the
said pin, the said frame carrying washer being adapted to be moved
along the pin and thus to force together a set of inclined surfaces thereby causing
one or more of the parts of the boss to grip firmly the main body of the boss and
so clamp the whole of the parts together substantially as described.
Fourthly: A cycle saddle boss, having a main body part on opposite sides of
which is an arm or pin, a frame carrying washer strung on the said pin, the said
washer having an inclined surface fixed to or adjacent to it adapted to force one
or more sliding plates against and thereby grip circumferentially the main body
of the boss so as to firmly secure the whole substantially as described.
Fifthly The combination with saddle frames of cycle bosses consisting of
a main body part, on opposite sides of which is fixed an arm or pin, frame-carrying
washers, opposing inclined or conical surfaces and tightening nuts or their
equivalents substantially as and for the purposes described and illustrated in the
accompanying drawings.
Dated this 9th dox of Tanuo 1000
JOHN BOULTBEE BROOKS,
JOHN HOLT.
By Henry Skerrett,
24, Temple Row, Birmingham, Agent for Applicants.