Padlock. Page: 2 of 3
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UNITED STATES PATENT OFFICE,
AUGUSTUS RICHARDS, SR., OF WILLIS, TEXAS.
PADLOCK.
SPECIFICATION forming part of Letters Patent No. 410,024, dated August 27, 1889.
Application filed March 7, 1889. Serial No, 802,294. (Model,)
To all whom, it 7nay concern: distance from its forward end, is formed an
Be it known that I, AUGUSTUS ICHARDS, upwardly enlarging or expanding notch 6, the 55
Sr., a citizen of the United States, residing at lower end of which opens into the middle por-
Willis, in -the county of Montgomery and tion of a horizontal slot 7, extending a little
5 State of Texas, have invented new and useful distance upon each side of the notch or open-
Improvements in Permutation-Padlocks, of ing 6.
which the following is a specification. To the rear end of the locking-bolt 3 is piv- 60
My invention relates to that class of locks otally connected the end of a tumbler 8, con-
known as "permutation-padlocks," in which sisting of a fiat plate slightly curved and ex-
io the parts maybe set to operate upon a com- tending downward, its lower end being piv-
bination known only to the person using the otally attached to a pin 9 on the back plate.
lock. A spring 10, mounted on the edge plate, bears 65
It is the purpose of my invention to pro- against the back of the tumbler 8 and nor-
vide apadlock having a two-partlocking-bolt, mally throws the locking-bolt in the direction
15 each member thereof having separate andin- of the arrow in Fig. 1.
dependent action and being operated by dif- Lying side by side with the lock-bolt 8 is a
ferent means, each unlocking device being similar but independent bolt 12, having a 70
guided by a scale the operative points on notch 13 opening into a horizontal slot 14, the
which are known only to the operator. construction being in all respects the coun-
20 It is a further purpose of my invention to terpart of that already described. The for-
so construct and organize the parts of a key ward end of the bolt 12 moves on and is sup-
padlock that the combination upon which it ported by a lug or support 15, which also in- 75
is operated may be readily and quickly closes the bolt 8.
changed, and to provide the key with a simn- To the rear end of the bolt 12 is pivotally
25 ple movable index which may be shifted to connected one end of a link 16, its other end
correspond with the change in the combina- being pivotally connected to an arm 16a, rig-
tion and indicate the proper point to which idly mounted on a rock-shaft 17, whichpasses So
the key must be turned in order to success- through the face-plate directly above the key-
fully operate the lock. opening 18. To the outer end of this rock-
30 The invention consists to these ends in the shaft is rigidly attached the upper end of the
several novel features of construction and guard-plate 19, which covers the key-opening.
new combinations of parts hereinafter fully The numeral 20 denotes the hasp of the 85
set forth, and then pointed out in the claims padlock, which is pivotally mounted at one
which follow this specification. end upon the upper end of a lever 21, lying
35 Referring to the accompanying drawings, within the lock-casing. This lever is pivoted
Figure 1 is a vertical section of a padlock in at the point 22 upon a strong pin supported
a plane passing from side to side near the by the casing, and the lower end of the lever 90
face-plate. Fig. 2 is an elevation of the front descends below the pivotal point and receives
or face plate, looking toward its inner face. a screw 23, which is tapped through the end
40 Fig. 3 is a front view of the face-plate of the of said lever and swiveled in a bracket 24 on
padlock. Fig. 4 is a horizontal section on a the casing. The squared end of the screw
plane passing through the lock-bolts. Fig. 5 lies in a circular opening 25 in the edge 95
is a view showing the key. plate, where it is accessible to a key or other
In the said drawings the reference-numeral device by which the screw may be turned.
45 1 designates the casing of the padlock, which Upon the locking end of the hasp is a catch-
is in all substantial respects of the usual lug 26, having an opening of sufficient size to
form and provided with ordinary guide-lugs receive the prongs 27 of both the lock-bolts. ioo
2. Within said casing, against the inner face Upon the outer face of the front plate is
of the back plate, is arranged a locking-bolt placed a circular graduated plate 28, the cen-
50 3, consisting of a flat metallic plate having a ter of which is the post of the lock or the
slot 4, to receive a guide-pin 5, which projects spindle of the inserted key.
from the inner surface of the back plate. In The key adapted to this lock consists of a o5
the upper edge of the bolt-plate, at a little spindle 29,having a single key-plate 30 with-
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Richards, Augustus, Sr. Padlock., patent, August 27, 1889; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth172141/m1/2/?rotate=180: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.