Improvements in and relating to Ratchet Braces.
Year: 1898

page_text: Date of Application, 7th May, 1898
Complete Sonrification Loft Ath Cab 1900
Accepted 19th Mar
1000
Improvements in and relating to Ratchet Braces.
"
I, JOHN HILSDEN, of 5, Southminster Terrace, Rectory Road, Ipswich, in the
County of Suffolk, Engineer, do hereby declare the nature of this invention to be
as follows;
-
This invention relates to a new or improved ratchet brace for drilling for use
in engineering and other works, by which the drill or boring tool is kept con-
tinuously revolving, instead of intermittently, as heretofore. To accomplish this,
I, by suitable gearing provided, make use of both the to and fro motions of the
ratchet lever to produce the revolutions of the drill in one direction, and thereby
enable double the amount of work in a given time to be performed than hitherto
has been possible with ratchet braces of the ordinary construction.
In carrying my invention into effect, I mount the drill in the ordinary manner
in a socket to which there is a spindle passing through a steel casing or framing
provided, which carries an intermediate bevel wheel and a pressure screw.
Fixed
upon the drill socket spindle I have a steel bevel wheel and ratchet combined, and
gearing with this bevel wheel (and placed at right angles thereto) is the intermediate
bevel wheel above alluded to and which is mounted loosely upon a pin or stud carried
by the steel casing or framing aforesaid. This intermediate bevel wheel also gears
with a second steel bevel wheel and ratchet combined, but which is loose upon the
drill socket spindle upon which the first combined wheel and ratchet is a fixture
as before mentioned. A suitable pressure socket and spindle and a pressure screw
are provided, and a ratchet lever furnished actuates the bevel wheels and causes the
drill to revolve. When pulled towards the operator, the ratchet lever engages with
the ratchet and wheel fixed upon the drill socket spindle and causes the drill to
turn. Upon the return stroke of the ratchet lever, it is freed from the fixed wheel
and ratchet and engages with the loose wheel and ratchet which in its turn
engages with the intermediate bevel wheel and that gearing as aforesaid with the
fixed wheel and ratchet turns same and in the same direction it was turned by
the ratchet lever when engaged therewith, and thereby a continuous revolving
motion in one direction is imparted to the drill or boring tool.
Dad thin 7th of 1000
HUGHES & YOUNG,
55 & 56, Chancery Lane, London, W.C.,
Agents for Applicant.

page_text: Improvements in and relating to Ratchet Braces.
I, JOHN HILSDEN, of 5, Southminster Terrace, Rectory Road, Ipswich, in the
County of Suffolk, Engineer, 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 a new or improved ratchet brace for drilling for use in
engineering and other works, by which the drill or boring tool is kept continuously
revolving, instead of intermittently, as heretofore. To accomplish this, I, by
suitable gearing provided, make use of both the forward and backward motions
of the ratchet lever to produce the revolutions of the drill in one direction, and
thereby enable double the amount of work to be performed in a given time, than
has hitherto been possible with ratchet braces of ordinary construction, and in
order that my invention may be the more readily understood and carried into
practical effect, reference is hereby made to the accompanying drawing, which
represents a side elevational view, partly in section of a ratchet brace, constructed
in accordance with my invention.
Referring to the said drawing, a is a drill or boring tool mounted in the ordinary.
manner in the drill socket to which there is a spindle e passing through the
steel casing or framing d which carries an intermediate beval wheel e and a
pressure screw. Fixed upon the drill socket spindle c is a bevel wheel g and
ratcheth, combined and gearing with this bevel wheel and placed at right angles
thereto is the intermediate bevel wheel e aforesaid, which is mounted loosely upon
a pin or stud e' carried by the steel casing or framing & aforesaid. This inter-
mediate bevel wheel e gears with a second combined bevel wheel i and ratchet j
loosely mounted upon the spindle c upon which the first combined bevel wheel
and ratchet h is a fixture as before mentioned. A suitable pressure socket and
spindle k, and a pressure screw k¹ are provided, and the ratchet lever / furnishes
the means for actuating the bevel wheels, and causing the drill to revolve.
In operation, when the said lever is pulled toward the operator, it engages,
by means of its pawl f, with the ratchet hand bevel wheel g fixed upon the drill
socket spindle c, and causes the drill or boring tool a to revolve in the usual direc-
tion, and upon the return stroke of the lever it is freed from the ratchet A and
wheel g fixed on the spindle c, and engages, by means of its pawl f¹, with the
loosely mounted ratchet j and wheel i which causes the wheel i to gear with the
intermediate bevel wheel e, which in its turn gears with the bevel wheel g and
ratchet hand causes it to revolve in the same direction it revolved when turned
directly by the lever when same was engaged with the ratchet h and thereby
the drill a is caused to revolve continuously in one direction.
If found necessary or desirable, the boss of the ratchet brace constructed in
accordance with this invention, may be suitably strengthened to compensate for
the additional strain placed on same by the continuous operation of the drill.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is;-
CLAIMS.

page_text: in one direction, the combined ratchet and bevel wheel fixed to the drill socket
spindle, the intermediate bevel wheel carried by the casing or framing, and the
combined ratchet and bevel wheel loosely mounted on the drill socket spindle, all
arranged, combined, and operating substantially as hereinbefore described and
illustrated.
.
ני
1
C T 1
1000
HUGHES & YOUNG,
55 & 56, Chancery Lane, London, W.C.,
Agents for Applicant.