Year: 1888

page_text: Date of Application, 4th July, 1888
Complete Specification Left, 31st Jan., 1889
Complete Specification Accepted, 2nd Mar., 1889
WILLIAM HENRY PRESTWICH Photographer Warmington House High Road,
Tottenham N. do hereby declare the nature of this invention to be as follows :—
This I accomplish by having the slot or stud hole bevelled from the back, the nut
baving a reverse and corresponding bevol to fit into the hole or slot, thus allowing it
5 to come flush if desired at the back, the stud screwing into the nut from the front of
the holo or slot.

page_text: Bicycle Treadles and other Furposes.
1, WILLIAM HENRY PRESTWICH, of Warmington Honse, High Road, Tottenham in
the County of Middlesex "Photographer" 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 :-
My invention relates to an improved nut and stud with mode of fastening same for
bicycle, and tricycle treadles and other purposes.
accomplish my invention by having the slot or stud hole hevelled from the back,
the nut having a reverse and corresponding bevel to fit into the hole or slot, thus
allowing it to come flush if desired at the back; the stud screwing into the nut from
the front of the holo or slot.
If preferable tho stud pin may project boyond the bevolled slot, and held doubly
secure by means of an hoxagon lock nut, in the manner described on the drawings.
The object of my invention is to prevent the nuts being removed from the screws by
vibration and the like.
And in order that my invention may be thoroughly understood, I now proceed to
describe the accompanying drawings thereof, reference being had to letters and figures
marked thereon.
Figure 1, represents the side view of the treadle stud pin inserted in the slot and
hold by a lock nut.
Figure 2, denotes the back view of figure 1.
Figure 3, is a section of figure 1.
Figure 4, represents a section of figure 1, on line a, b.
The nut B being of the same bevol as the inside bevelled odges of the slot or stud
hole A, and the screw pin E, of the trendle bearing being screwed into the bevelled
nut B, with a washor F, between the shoulder of the treadlo bearer and the outside of
the slot or stud hole.
The slot or stud hole prevents the nut B from shaking off the stud pin, as in ordinary
cases, now in common use.
Like lettors give like parts in each of the figures.
A, the slot or stud hole. B, bevelled aut. C, treadle bearer. D, nut. E, screwed
pin. F', washor.
Having now particularly described and ascertained the nature of my said Invon-
tion, and in what manner the same is to be. porformed, I declare that what I
claim is :-
First. The combination of a bevelled nut, with a corresponding bevelled slot or

page_text: hole, and the stud pin or thread, to screw into the nut B, with or without a lock
nut D, substantially as herein described and according to the accompanying drawings.
Secondly. I claim the bevelled nut to fit in a corresponding bevelled slot or bed
in which the nut is placed, and any size thread to screw into the bevelled nut, to
prevent the nut coming off by vibration of a bicycle treadle, or any machinery,
substantially as herein described and according to the accompanying drawings.
Thirdly. I claim to make my invention any size or shape, according to circum-
stances of application, substantially as herein described.