IMPROVEMENTS IN LOCKS AND STAPLES
Year: 1881

page_text: LETTERS PATENT to Herbert John Haddan, of the Firm of Herbert and
Company, Solicitors of Patents, of 67, Strand, in the City of Westminster,
Civil Engineer, for an Invention of "IMPROVEMENTS IN LOCKS AND STAPLES."
A communication from abroad by George M. Hathaway and Benjamin S.
COMPLETE SPECIFICATION filed by the said Herbert John Haddan at the
Office of the Commissioners of Patents on the 8th April 1881.
HERBERT JOHN HADDAN, of the Firm of Herbert and Company, Solicitors of
Patents, of 67, Strand, in the City of Westminster, Civil Engineer.
"IMPROVEMENTS
IN LOCKS AND STAPLES." A communication from abroad by George M. Hathaway
and Benjamin S. Taylor, both of Jersey City, United States of America.
In carrying out this Invention I secure to the body of the trunk or other stationary
portion an ornamental frame, from a cross bar of which arises a rigid keeper hook,
said frame being cut away to correspond with the ornamental conformation of the
free end of the hasp.
The hasp is pivoted within a frame of similar outward appearance to the keeper
frame, and is held out of contact therewith by the constant force of a spiral spring
when the locking mechanism is not in operation.
The hasp is provided with two cavities upon the under side, one of which contains
the locking mechanism, and the other being adapted to receive the keeper hook, an
abrupt right angled surface which corresponds with and abuts against a similar
bearing upon the keeper when the hasp is in a locked. position.
Through an aperture in the hasp upon which is formed a sleeve projecting inward
operates a shank having a rectangular extremity upon which is secured an operating
disk having a projecting pin upon the under side, and a recess upon its periphery,
having one abrupt side and an incline over which the locking pawl rides uselessly
when the shank is turned in one direction. The pin upon the underside of this
operating disk serves to rotate a series of reversible disks having similar pins upon
each side upon the same annular plane in either direction until the three sided
recess in the periphery of each disk registers with the locking pawl. This series of
disks operates over the hasp sleeve, and the operating shank is secured rigidly to a

page_text: against a shoulder k upon the locking pawl K pivoted at k¹ to the arm L of the
locking bolt L'.
The pawl K has a transverse arm K' which operates in the recesses d³ when the
combination is "on," and which recedes into a recess in the arm L when the
combination is "off." It will thus be observed that the single spring J not only
controls each disk independently, but that it holds the pawl within the recesses d, d³,
and also exerts its constant force to hold the lock bolt in locking contact with the
keeper.
When the hinged arm F¹ is closed down the device presents an attractive
appearance.
In carrying out the Invention as set forth in the modification I employ an
ordinary shank having a rectangular end, which is received into a corresponding
aperture within an operating disk having a pin upon its under side and a peripheral
recess with an incline, and held rigidly in place by means of a set screw.
The
pin operates similar reversible disks as heretofore described and in a similar
manner.
In this modification I form the pawl and lock bolt in one piece, allowing the said
piece to have a sufficient rocking motion to allow the pawl arm to enter the
recesses, or ride along the peripheries of the disks uselessly without interfering
with the efficient action of the locking bolt.
A single spring is provided with a socket formed by bending the same upon
itself, and the socket is passed over a stud or lug upon the face plate, one end being
divided into independent spring arms, each arm controlling by friction one of the
reversible disks afore mentioned, and the other end bearing upon an arm upon the
pawl bolt.
It will be understood that the operating mechanism upon the face of the lock
in the modification may be the same as that set forth in the previous device.
In the modification, O represents the lock plate; O¹, the shank; 0%, the reversible
disks; and Os, the operating disk, as shewn.
P represents the lock bolt having upon one side an arm P¹ which forms a bearing
for an arm p of a spring Q socketed at q, and having divided independent spring
arms q¹ which bear upon the disks 0%. The socketed portion passes over a stud R
upon the plate O, and a stud r serves as a fulcrum bearing for the arm q' back of
the kerfs, which form the independent spring arms.
It will be observed that the portion of the arm p near the stud R bears upon
that portion of the arm q' between the studs R, r, and as the lock bolt is retreated
from the keeper, by reason of the pawl arm locking in the recesses o², 0³, this
pressure serves to automatically lift the spring arms from their frictional contact
with the disks, and allows the said disks to move freely with the bolt.
A curved arm S formed in one piece with the arm Pi and locking bolt P extends
back ward to the peripheries of the disks, where it is provided with a transverse
arm 8, which acts as a pawl in the recesses o², o³, the part allowing sufficient rocking
motion to effect this action.
1. The spring hasp having lock chamber and keeper chamber as shown
combined with a permutation lock and a keeper, as and for the purposes set
forth.
2. The hasp B, having sleeve C and circular recess G formed by the surface H
having figures, combined with the shank E, plate F, hinged plate F¹, and lock.
mechanism, as set forth.
3. The combination of the disks D, D¹, having pins d¹, d², and recesses d, d³,
with the pivoted pawl K, k, and the arm L having recess b, as and for the purposes
set forth.
4. The single spring J formed at one extremity into independent spring arms j,

page_text: and the other bearing against the pawl K, k, combined with the disks D, the
pawl K, and lock bolt L', L, l, as and for the purposes set forth.
5. The combination of the hasp B having recess G, figured surface H, and lock
chamber x, the shank e, plate F, and hinged plate F¹, the disks D, D¹, having pins
and recesses, the spring J, pawl K, and lock bolt L', L, all arranged and operating
as and for the purposes set forth.
6. The combination of the compound spring Q socketed at 9 and baving the
arms q¹, the stud R, lock bolt P, and pawl arm S formed in one piece, and the
operating disks and shank, all arranged and operating as set forth.
7. The combination of the compound spring Q socketed at q, and having the
arms q with the bolt P, S, disks 02, 03, and studs R and r, the said spring
being adapted to automatically relieve friction as the bolt is withdrawn, as
specified.
In witness whereof, I, the said Herbert John Haddan, have hereunto set
my hand and seal, this Eighth day of April, A.D. 1881.
H. J. HADDAN. (L.S.).