Year: 1887

page_text: Date of Application, 9th Sept., 1887
Complete Left, 6th June, 1888
Complete Accepted, 6th July, 1888
We, ROBINSON MANBY JOHNSON of Fulwood Road, Sheffield, in the County of
York, Commercial Traveller, and THOMAS HENRY BENTON, of Norfolk Lane Sheffield
aforesaid, Diesinker do hereby declare the nature of this invention to be as follows:-
Our invention has for its object to enable one handle to be used for a number of
blades, the parts being so constructed that they may be separated, and secured together
again with the greatest ease and rapidity.
The utility arising from this invention is, that a number of blades varying in size
and in the shape of the teeth may be fitted with one best quality handle at less cost
than fitting them all with common handles, also that such saws may be packed in less
room both in the Tool Chest, and in ordinary packages, a considerable advantage to
shippers and others.
In carrying out our invention we make the butt end of the blade with a projecting
rib or ribs either on one or both sides of the blade, the said rib being preferably close
to, and parallel with, the edge that fits into the handle; we prefer to use a nearly
halfround strip of metal rivetted or otherwise secured to each side of the blade, so that
with the intermediate thickness of the blade, the cross section would be a circle, and
at the end of the sawgate made in the handle to receive the blade we bore a hole
corresponding with the ribbed end of the blade and so that the butt end of the blade
may be slotted into it.
We secure the parts together by one or more keys, screws or equivalent devices;
if a key is used, we fasten a metal plate on each side of the handle having a kind of
keyhole opening in the centre, the key has a finger bit at one end and a Tat the
other, this end is passed through the two plates and then turned across the keyhole.
If a screw is used, one of the plates will be tapped with a screw thread to engage
with the end of screw, and in either case it is desirable to recess the plates so that the
ends of the key or screw may not project beyond the sides of the handle. The Handle
may be of any suitable material, such as Wood or Horn, and of any pattern.
Dated the 6th day of September 1887.
ROBT. F. DRURY,
Agent for the Applicants.

page_text: COMPLETE SPECIFICATION.
Improvements in Hand Saws.
We ROBINSON MANBY JOHNSON of Fulwood Road, Sheffield, in the County of
York, Commercial Traveller, and THOMAS HENRY BENTON, of Norfolk Lane Sheffield
aforesaid, Diesinker, 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:-
Our invention has for its object to enable a number of blades to be fitted to one
Handle, and so constructed that they may be separated and secured together again
with ease and rapidity. The purpose of utility are described in our provisional
Specification.
The annexed sheet of drawings illustrates our invention as applied to an ordinary
handsaw, but we wish it to be understood that we do not limit our invention to such
Handsaws only as it may be applied to any kind of handsaw to which it is suitable
such as crosscut saws, framesaws and the like.
Fig. 1, is a side view of a handsaw with our invention applied to it.
Fig. 2, Top view of same.
Figs. 3 & 4, The lock-rib before attaching to saw blade.
Fig. 5, Modification of lock rib.
Fig. 6, Modification of method of making lock rib.
In carrying out our invention we make the butt-end of the blade A, with a projecting
rib (or ribs) B, either on one or both sides of the blade, but preferably as shown, the
said rib being close to, and parallel with the edge that fits into the handle; we prefer
to use a piece of metal formed as shown in Fig. 3, which we double or fold, down the
centre, as shown in Fig. 4 and then secure it upon the blade or a nearly half-round
strip of metal as Fig. 5, rivetted or otherwise secured to each side of the blade, so that
with the intermediate thickness of the blade, the cross section would be a circle, and at
the end of the sawgate made in the bandle to receive the blade and opening into it we
bore a hole corresponding with the ribbed end of the blade and so that the butt end of
the blade A and the rib B may be slotted into it.
We do not confine ourselves to any particular method of forming or attaching the
lock-rib or to any particular configuration of such lock-rib as for example it may be
cast upon the saw blade, the blade having holes made through it for the metal to run
through and so connect the two sides to each other, and to the blade itself; or as shown
in Fig. 6-the lock-rib may be formed out of the saw blade by coiling round a
suitable part of the butt-end. Also if desirable the round hole in the handle to receive
the lock-rib may be made completely through the handle or partly through as seen in
Fig. 1, and it may be provided with a metallic tubular lining.
We secure the parts together by one or more keys, screws or equivalent devices; if
a key is used, we fasten a metal plate on each side of the handle having a kind of
keyhole opening in the centre, the key has a finger bit at one end and a T at the
other, this end is passed through the two plates and then turned across the keyhole,

page_text: but we prefer to use a simple screw C, the head of which may be recessed into the
handle D, and a wing nut E partially let into the handle as shown in Figs. 1 and 2.
Having thus 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 :-
1st. The method of attaching saw blades to their handles, substantially as hereinbefore
described and illustrated.
2nd. The combination with a sawblade of a lockrib, substantially as hereinbefore
described for the purpose specified.
ROBT. F. DRURY,
Agent for the Applicants.