Year: 1888

page_text: Kentucky, USA, real Estate Agent
I, ALFRED JULIUS BOULT, of 323 High Holborn, London, in the County of
Middlesex, MI ME, 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 drawings in which Figure 1 represents a top plan of this
improved seal lock
-
Fig 2 is a central longitudinal section through the line of Fig 1
Fig 3 is bottom plin of the case with the back plate removed
Fig 4 is a plan of the back plate
Fig 5 is a reverse plan of the same
Fig 6 is a perspective detail of the defacer
Fig 7 is a perspective detail of the bolt
Fig 8 is bottom plan of the same, and
Fig 9 is a perspective view of the cover inverted
This improvement relates to that class of seal locks in which an attempt to open the
lock tears the seal, and the invention consists in the peculiar combinations and the
novel construction, arr ingement and adaptation of parts all as more fully hereinafter
described and then definitely pointed out in the claims
Referring now to the details of the accompanying drawings, which form a part of
this specification-A designates a case, preferably of rectangular form, and provided
with diaphragm a dividing said case into two compartments Near one end of the
diaphragni is the rectangular opening a¹, to the rear of which I form a plurality
of longitudinal slots a³ The cover above the diaphragm is formed with lugs a
adapted to receive and hold in place the plate B, which at one end is provided with a
rectangular opening b, which, when the plate is in position within the recess in the
case above the diaphragm is coincident with the opening a¹ in sud diaphragm Just
to the rear of this opening b this plate is provided with a circulu opening 6' and to
the rear thereof with a rectangular opening &, the purposes of which will be explained
further on
This plate is provided upon opposite sides of the circular opening with

page_text: dovetail grooves in which are secured elistic blocks m designed to bear on the seal
and prevent its being rumpled when the teeth of the defacer strike it
The chamber on the reverse side of this diaphragm is formed as shown in Fig 3,
that is to say, the longitudin il centre of the diaphragm just to the rear of the slots a
is provided with a stud or pin C, to the rear of which is the sochet or hilf barrel (¹
open at its forward end but closed at its rear end and formed with a raised
shoulder c To one side of the centre and extending the whole length of the
diaphragm is the half-barrel C³ open it one end as shown at 2 and at its other end
formed with a shoulder ca This half barrel is open on the inner side opposite the
slots a³, for purpose soon to be explained
2
The forward vertical walls of the case upon this side of the diaphragm are formed
with shoulder or lodge c on which rests the back plate D which may be secured in
place by means of screws passed therethiough into screw-threaded holes in the lugs c
This
The back plate D is provided with a 1cctangulu opening d which when the sud
plate is in position, is coincident with the openings a and b above described
plate, upon its under side, is formed is shown in Fig 4, that is, with a longitudinal
half bariel D¹ open it one end as seen at d¹, and formed at said open end with a
dovetail lug d, which fits a corresponding se it in the end wall of the case, as seen in
Fig 1, leaving the key hole d for the reception of the key to operate the lock
Parallel with the half barrel D' is the half barrel E open at both ends and arr inged to
be coincident with the half burrol C', and the halt barrel D' with the hilf barrel ³,
when the back plate is in place Longitudinal ribs e are also provided to form guides
for the bolt horemafter described Fis the defacer, shown detached in Fig 6, com-
prising the stem, and the right-angled extension or arm f¹ which arm is formed with
or provided with fingers or tooth f which are designed to project through the slots a²,
the stem working in the barrel or channel formed by the two half-barrels D¹, C'
The bolt G is formed with a stem G¹ working in the chumber or barrel formed by
the two half barrels (E and shoulder g which is provided with longitudinal
channel g¹ engaging the pin ()
To the front end of the bolt are secured upon the sides thereof the extensions
provided with downwardly extending lugs 9 which bear upon the diaphragm a to
prevent tilting of the bolt
His a spring in the barrel in which works the stem of the defacer and arranged
between the end of the stem and the shoulder c and serving to heep said defacer in
its normal position I is a like spring bearing on the end of the stem of the bolt and
for a like purpose
The case constructed and provided with the accessories above described is designed
to be secured to the car door or other object upon which it is designed to bo
used The cover J is hinged at ind is formed with a circular opening J¹
designed when in the position shown in Fig 1, to be coincident with the similar
opening in the plate B, and with a rectangular opening J2, to coincide with the
similar opening in said plate A spice is left between the cover J and the plite B
for the reception of glass plite K bene ith which in the rectangular space is designed
to be placed card ciriying the destination of the car, the name of the sender, or any
other desired information, ind in the circular space is placed a seal, preferably of
paper
Depending from the underside of the cover is the hasp L rectangular in form to
engage the rectangular openings a, b and d above described and provided with a
transverse recess or groove into which is forced by the spring 1 the lip of the bolt,
as seen in Fig 2
To
In practice, with the parts in the position shown in Fig 2 the lock is locked
unlock the same a suitable key is inserted in the key hole d, and by pressing in on
said key the same bearing on the end of the stem of the deficer pushes it in, and as
the arm f¹ of said defacer has considerable loose play over the reduced portion f® of
the bolt it must move all of that distance before operating the bolt, for it cannot move
the bolt till said arm comes in contact with the shoulder g of the bolt, when further
pressure on the key will cause the hp of the bolt to be withdrawn from the groove in

page_text: the hasp when the latter with the cover is free to be swung open It will thus be
seen that as the arm of the defacer carrying the teeth has to move across the space
occupied by the seal before it can possibly act on the bolt it is impossible for the lock
to be unlocked without destroying the seal
The cover is provided with a suitable handle by which it is manipulated
Having now particularly described and ascertained the nature of my said inven-
tion, as communicated to me by my foreign correspondent and in what manner the
same is to be performed, I declare that what I claim is
1-A seal lock provided with a defacer moving in line with the bolt, and means for
moving saul defacer to destroy the seal before the bolt is moved, as set forth
2-The combination with the bolt and the hasp engaging the same, of a defacer
moving in line with the bolt, and means for operating said defacer to cause it to engage
and operate the bolt, as set forth
3 The combination with the bolt and the defacer moving in line therewith but in
bearings independent of the bolt, of means for engaging said defacer to move the
same to cause it to destroy a seal, before engaging the bolt, substantially as described
4- The combination with the bolt, and the defacer having a limited loose
connection therewith, of a hinged cover and a hasp carried thereby to engage said
bolt, substantially as described
5 In a seal lock, the combination with a spring-actuated bolt and the spring-
actuated defacer having a limited loose connection therewith, of a hinged cover and
a hasp carried thereby and formed with a transverse groove, substantially as and for
the purpose specified
6 The combination with the slotted case and the defacer provided with teeth
working through the slots in said case and having a stem working in guides in said
case, of a bolt moving in guides in said case and having a limited loose connection
with said defacer, a hasp engaging said bolt independent of the defacer, and means
for moving said defacer to destroy a seal before moving the bolt, substantially as
described
7-In a seal lock, the combination with the case having a slotted diaphragm as
described, of a defacer having a stem working in a guide on one side of said diaphragm
and an arm at right angles to said stem carrying teeth working in the slots of the
diaphragm, substantially as and for the purpose specified
8-In a seal lock, the combination with the case, the seal and the plate B, of
elastic blocks secured to said plate to press upon said seal, substantially as and for the
purpose specified
9 The combination with the case having slotted diaphragm and half barrel open at
one side as shown, of the defacer having a stem working in said half barrel and a
right-angled extension working in the cut away portion of said barrel and carrying
teeth working in the slots of the diaphragm, substantially as described
10 The combination with the case having a diaphragm a and half barrel C open
at one end and formed with ledge c* and tapering seat of the back plate formed with
half barrel D¹ and wedge shaped lug d engaging said seat, substantially as shown and
described
11-The combination with the case having diaphragm a stud C and half barrel C³, of
the bolt having a stem working in said half barrel, a slot engaging said stud and
provided at its opposite end with extensions & formed with downwardly extending
Tugs g, substantially as and for the purpose specified
Dated this 4th day of June 1888