IMPROVEMENTS IN FLOORING CRAMPS
Year: 1884

page_text: ANTHONY DOBBING Joiner 44 Archer Street Darlington do hereby declare the
nature of this invention for IMPROVEMENTS IN FLOORING CRAMPS to be as
follows:-
:-
The improvements claimed in this Invention are that the work is done much
easier and quicker, than with any other Cramp for the same purpose-and the
particulars of the Invention for which a Patent is applied for are that the Cramping
Slide which forces up the joints of the Floor Boards &c is propelled forward by an
Eccentric Lever to which is attached a Pushing Catch, which falling into notches
on the Top of Fore end of Cramping Slide, propells it forward when the Lever
Handle is forced forward.
To prevent the Cramping Slide springing back when the Lever Handle is drawn
back for a fresh stroke, there are two Holding Catches which drop into notches at
the back part of Cramping Slide and so hold it.
When the Boards &c are cramped up as far as desired, the Cramping Slide can
also be held fast in position, by pushing the Lever Handle forward until the pivot
of Pushing Catch becomes on a level or horizontal line with the pivot of Lever
Handle, thereby forming an additional holder to the Cramping Slide with Holding
Catches:
To release the Cramping Slide, after the necessary Cramping is done, the Lever
Handle must be brought smartly backwards on to the top part of Holding Catches,
which immediately lifts them out of the notches in Cramping Slide and so allows
it to be drawn back into its original position.
The above mentioned parts are attached to an ordinary frame of iron, or other
suitable material, which is fastened to the Joists &c in the usual manner, either
with screw, wedge or eccentric cam.
Ppro. ANTHONY DOBBING.
RIC. T. SNAITH.

page_text: ANTHONY DOBBING Joiner 44 Archer Street Darlington do hereby declare the
nature of this invention for IMPROVEMENTS IN FLOORING CRAMPS and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :-
The particulars of the Invention for which a Patent is applied for are, that the
Cramping Slide D, which forces up the Joints of the Floor boards &c is propelled
forward by an eccentric Lever A, to which is attached a Pushing Catch B, which
falling into notches on the Top side of the fore end of Cramping Slide, propells it
forward when the Lever Handle A is forced forward.
To prevent the Cramping Slide springing back, when the Lever handle is drawn
back for a fresh stroke, there are holding catches C, which drop into notches on.
the top of the back part of Cramping Slide and so hold it.
When the Boards &c. are cramped up as far as desired, the Cramping Slide, can
also be held fast in position, by pushing the Lever handle forward until the pivot
of Pushing Catch becomes on a level or horizontal line, with the pivot of Lever
handle, thereby forming an additional holder to the Cramping Slide with the
Holding Catches.
To release the Cramping Slide after the necessary Cramping is done, the Lever
handle must be brought smartly backwards on to the top part of Holding Catches,
which immediately lifts them out of the notches in Cramping Slide and 80 allows
it to be drawn back to its original position.
The above mentioned parts are attached to an ordinary frame of iron, or other
suitable metal, which is fastened to the joists &c in the usual manner, either with
screw, wedge or eccentric Cam.
Having now particularly described & ascertained the nature of my said
Invention, and in what manner the same is to be performed, I declare that what
I claim is
1st. That the Work is done much quicker.
2nd. That the Work is done much more effectually.
3rd. That the Work is done much easier than with any other Cramp in present
use for the same purpose.