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Патент USA US3048072

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Aug- 7, 1962
r
I. c. BASS
3,048,062
LOCK INSTALLING TOOL
Filed Sept. 23, 1959
2 Sheets-Sheet 1
Ira 6‘. Bass
ZNVENTOR.
WWW
Aug- 7, 1962
LC. BASS
3,048,062
LOCK INSTALLING TOOL
Filed Sept. 23, 1959
2 Sheets-Sheet 2
F193
703075 68
37
24
62 63
I0
7/
73
I8
69
/ 24
,69
_ 72
'75
40
Ira 6! Bass
INVENTOR.
BY 24mm
WWW 3%
3,048,662
States
Fatented Aug. 7, 1962
.5.
2
3,048,062
against a cotter pin 42 attached to the screw 35. In this
way, turning of screws 35 and 34 will cause displacement
LQCK INSTALLING T001.
Ira C. Bass, % L. K. Jones, Rte. 1, Newberry, Fla.
Filed Sept. 23, 1959, Ser. No. 841,737
12 Claims. (CI. 77-62)
This invention relates to tools, and more particularly
to special purpose tools to prepare a door for the installa
tion of a conventional lock.
An object of the invention is to materially facilitate the 1O
drilling of a door to receive a lock mechanism by use of
a special guide which makes it impossible to drill the door
in any way but correctly, i.e., with the bores at right angles
to each other and perfectly flush with the door surface
and outer edge, respectively.
A further object, of the invention is to provide a tool
which is adapted to clamp onto a door and be held ?rmly
in place until the drilling procedures are completed, the
tool assuring that the drill bits penetrate the door at precise
angles for receiving the lock in a proper and true installa
tion.
These, together with other objects and-advantages which
will become subsequently apparent, reside in the details
of construction and operation as more fully hereinafter
described and claimed, reference being had to the ac
companying drawings forming a part hereof, wherein like
numerals refer to like parts throughout, and in which:
FIGURE 1 is a perspective view showing the tool in
of plate 24 by having the washers 41 shoulder against the
mner surface of plate 26 and preventing the screws from
moving axially with reference to plate 26. It is now evi»
dent that clamping action takes place by adjusting the
four screws 32, 33, 34 and 35 so that the inner ends of the
plates 24- and 26 are ?tted flush against the surfaces of door
10. Further, there is su?icient clearance between plates,
screws and internally threaded tubes to enable the plates to
3e adjusted for use with the smaller and larger thickness
oors.
There are means for abutting the outer edge 11 of
typical door It), and these means are secured to plate 26
by means of two screws 43 and 44 passing through slots
59 and 51 in strip 47 also slotted at 48 and 49 to provide
clearance for screws 32 and 33-. The strip 47 extends
transversely with respect to plate 26 and provides a bear
ing surface against the edge 11 of door 10 at one corner
only thereof. As shown best in FIGURE 2, strip 47 is
made in two parts, one of which carries screws 43 and
i the other of which has slots 48 and 49‘ therein together
with the adjustment slots 50 and 51 through which screws
‘43 and 44 pass. Consequently, the part of the strip 47
which bears against the corner edge of door 11 can be
adjusted and set so that the tool 12 ?ts square with door 10.
This is apparent because the corner abutment constituted
by the strip 47 and plate 26 when engaged with the edge
of the door, forms a reference line with respect to which
FIGURE 2 is a side elevational view of the tool, parts 30 a ?xed guide 55 is positioned and a movable guide 69
accurately positioned angularly by the spaced adjustment
being broken away in section.
screws‘ for squaring purposes and laterally by a collar 70
FIGURE 3 is a sectional view taken on the line 3-3 of
independent of the spaced squaring adjustment as will
FIGURE 2.
use.
I
FIGURE 4 is a sectional view taken on the line 4-—4 of
FIGURE 2.
FIGURE 5 is a sectional view taken on the line 5-~5
be hereafter explained. -
Drill bit 20‘ is constrained in its movement by guide 55.
The guide is made of a tube or sleeve 56 with an opening
57 at the bottom thereof through which chips may fall.
Two partition walls 58 and 59‘ are in sleeve 56, and there is
a tube 60 attached to and extended through central open
FIGURE 7 is a perspective view of an insert to be 40 ings in walls 58 and 59. Tube 60 functions as the guide
for the shank of drill bit 20. Aperture 61 in plate 26 is
used as a part of the tool for different sizes of drills.
in registry with the open inner end of sleeve 56 so that
In the accompanying drawings, there is illustrated a
the head of the drill bit may come in contact with the
conventional door 10 together with tool 1.2 exemplifying
door and drill hole 14.
the principles of the invention. The purpose of the tool
Drill bit 201 can be removed and replaced by a larger
is to assure that bores 14 and 16 (-FIG. 6) in door 10 45
or smaller diameter bit when the hole 14 is to be made
will be drilled at exactly right angles to each other and so
larger or smaller. For the full capacity of the tool, there
that the longitudinal axes thereof will intersect. Accord
is an opening 62 in plate 24 and in precise alignment with
ingly, tool 12 is adapted to be ?tted on the edge of the
opening 61. However, when a smaller diameter drill bit
door and clamped in place. After it is clamped, it auto
is used, a ring insert 63 is snapped into opening 62 to
matically provides two guides for two drill bits 18 and
function as a guide for the head of the drill bit. The rings
20, respectively, and the drill bits may be turned by any
can come in numerous sizes, but it is preferred that each
conventional means.
of FIGURE 2.
FIGURE 6 is a perspective view of the edge of a door
after it has been drilled with the aid of the tool.
Tool 12 is laterally adjustable to accommodate different
has a shoulder formation 66 to snap into an undercut in
door thicknesses, and at the same time the tool friction
the wall of opening 62 so that the inserts are easily snapped
ally engages the front and rear faces of the door and is .
thereby held clamped in place on the door. Casing‘ZZ
into place and removed.
Guide 63 for bit 18 is constructed slightly differently.
constitutes the housing of the tool and it is made of two
?at plates 24 and 26. A short top wall 28 is secured to
plate 26, and front wall 30 is also secured to plate 26. A
bit 18, and tube 69 is supported by collar 70 made inte
gral therewith and attached to wall 30‘ of the casing by
It is made of a tube 69 which receives the shank of drill
short top wall 27, parallel to wall 28, is secured to plate 60 means of screws 71 and 72 which pass through slots 73
and 74 in walls 39‘ and 31 and thread into tapped open
24, and front wall 31 is secured to the front edge of wall
ings in a backing plate 75 ?tting against the inside sur
24. Plate 24 is capable of moving laterally toward and
face of wall 31. There is enough clearance so that the
away from plate 26 and it is held in selected adjusted
tube 69 may be slightly adjusted to always obtain correct
positions by means of four screws 32, 33, 34, and 35.
Screws 32 and 33 have their heads countersunk in open 65 alignment for the center of the door edge 11 when differ
ings in plate 26, and they are threaded into internally
ent thicknesses of doors are being drilled.
threaded tubes 37 and 38 which are Welded, brazed or
The foregoing is considered as illustrative only of the
otherwise secured to the inside surface of plate 24 (FIG
principles of the invention. Further, since numerous mod
URE 4). Screws 3S and 34 are threaded into internally
i?cations and changes will readily occur to those skilled
threaded tubes 39 and 4!} (FIG. 5) which are ?xed to the
inside surface of plate 24. There is a shoulder formed on
each screw 35 and 34, for instance, by washer 41 bearing
in the art, it is not desired to limit the invention to the
exact construction and operation shown and described,
aosepea
3
and accordingly all suitable modi?cations and equivalents
7. In a tool for aligning a pair of drill bits with a door
may be resorted to, falling within the scope of the inven
in order to drill holes in the door at right angles to each
other, said tool comprising a ?rst plate, a second plate,
spaced means connected with both said plates in front of
a front edge of the door for adjusting said plates toward
and away from each other to square and clamp said plates
tion as claimed.
What is claimed as new is as follows:
1. A tool to facilitate drilling openings in a door to
accept a conventional door latch, said tool including a pair
of plates adapted to ?t flush against side faces of the door,
on said door, a ?rst guide means for a ?rst drill bit car
guide means for a ?rst drill bit connected with one of said
ried by one of said plates, a second guide means for an
plates, guide means for a second drill bit, a wall attached
other drill bit, means adjustably securing said second guide
to one of said plates and to which the guide means for 10 means to one of said plates independently of the spaced
the second drill bit are secured with the longitudinal axes
means, and said second guide means having a longitudi
of said guide means at right angles to each other, and
nally axis at right angles to the longitudinal axis of said
space adjusting means rigidly interconnecting said plates
at spaced locations for adjusting the spacing of said plates
?rst guide means, a strip, means securing said strip to
tioned guide means are axially aligned.
3. A tool to facilitate drilling openings in a door to
accept a conventional door latch, said tool including a
pair of plates adapted to ?t ?ush against side faces of the
supporting said tube in said sleeve with said tube adapted
to constrain the movement of the shank of the ?rst drill
one of said plates to form a corner for contact with the
in front of a front edge of the door and also at the same 15 front edge of the door.
time squaring and clamping the plates on the opposing side
8. The tool of claim 7 wherein said ?rst guide means
faces of the door._
includes a sleeve attached to one of said plates, said
2'. The tool as de?ned in claim 1, wherein both of said
one of said plates having an aperture in registry with
plates having apertures therein with which the ?rst-men
said sleeve, a tube in said sleeve, and structural means
door, guide means for a ?rst drill bit connected with one
of said plates, guide means for a second drill bit, a wall '
attached to one of said plates and to which the guide
means for the second drill bit are secured with the longi
tudinal axes of said guide means at right angles to each
bit.
9. The tool of claim 8 wherein the other of said plates
has an aperture, and a diameter reducing insert separably
carried by the last-mentioned aperture to compensate for
different diameter ?rst drill bits.
10. An alignment tool for drilling holes in a door
for installing a door latch therein, comprising clamp
other, and space adjusting means rigidly interconnecting
said plates at spaced locations for adjusting the spacing
means engagea'ble ‘Wtllh opposing side faces of a door and
of said plates in front of a front edge of the door and
also at the same time squaring and clamping the plates on
of, spaced adjusting means mounted on said clamp means
the opposing side faces of the door, both of said plates
having apertures therein with which the ?rst-mentioned
guide means are axially aligned, an insert in one of the
last-mentioned apertures and separably carried thereby to
form a guide for the drill bit head, said insert being sep
arable in order to be replaced by additional inserts of dif
ferent ‘diameters for use with different sizes of drill bits.
4. A tool to facilitate drilling openings in a door to
accept a conventional door latch, said tool including a
pair of plates adapted to ?t ?nish against side faces of the
door, guide means for a ?rst drill bit connected with one
of said plates, guide means for a second drill bit, a wall
attached to one of said plates and to which the guide
means for the second drill bit are secured with the longi
tudinal axes of said guide means at right angles to each
other, and space adjusting means rigidly interconnecting
said plates at spaced locations for adjusting the spacing of
said plates in front of a front edge of the door and also
at the same time squaring and clamping the plates on
the opposing side faces of the door, both of said plates
extending forwardly therefrom beyond a front edge there
forwardly of the front edge for positive spacing of the
clamp‘ means at spaced locations to square the clamp
means without reliance on the side faces of the door While
accommodating doors of different thickness, laterally ad~
justable axial guide means adjustably mounted on said
clamp means independently of the spaced adjusting means
forwardly of the front edge of the door for receiving
a drill bit therethrough, ?xed guide means ?xedly mount
ed on said clamp means and extending laterally from
one side thereof perpendicular to the axial guide means,
adjustable corner abutment means directly mounted on
said clamp means in front of the front edge for adjust
able movement parallel to the first mentioned axial guide
means to vary the spacing only of the ?xed guide means
from the front edge of the door.
11. An alignment tool for drilling holes in a door to
install a door latch therein, comprising, clamp‘ means en
gageable with the door and extending forwardly there
from, drill guide means having intersecting axes carried
by said clamp means forwardly of and laterally of said
door, and squaring means operatively mounted on said
having apertures therein with which the ?rst-mentioned
clamp means for spacing and angularly positioning said
guide means are axially aligned, means adjustably con
nected directly to one of said plates to form a corner abut~
drill guide means with respect to -a reference edge on
ting the front edge of the door to space the guide means
for the ?rst drill bit from the front edge.
5 . The tool as de?ned in claim 4, including means con
nected with said guide means for said second drill bit to‘
adjust said guide means for said second drill bit in a direc
tion laterally of said plates independently of said spaced
adjusting means.
6. In a tool for aligning a pair of drill bits with a door
in order to drill holes in the door at right angles to each
the door, said squaring means including corner abut
55 ment means mounted on the clamp‘ means in adjustably
spaced relation to the drill guide means for positioning
against said reference edge of the door and spaced ad
justing means operatively connected to the clamp means
forwardly of the door for independently rigidly position
60 ing one of said drill guide means at spaced locations there
along in perpendicular relation to the other drill guide
means, and lateral adjusting means mounted on the clamp
forwardly of the door for laterally adjusting said one drill
other, said tool comprising a ?rst plate, a second plate, 65 guide means independently of the squaring means.
12. An alignment tool for drilling holes in a door to
spaced means connected with both said plates in front of
install a door latch therein, comprising, clamp means
a front edge of the door for adjusting said plates toward
engageable with the door and extending forwardly there
and away from each other to square and clamp said plates
from, drill guide means having intersecting ‘axes car
on said door, a ?rst guide means for a ?rst drill bit car
ried by one of said plates, a second guide means for an
other drill bit, means adjustably securing said second
guide means to one of said plates independently of the
spaced means, and said second guide means having a
longitudinal axis at right angles to the longitudinal axis
of said ?rst guide means.
ried by said clampv means forwardly of and laterally of
said door, and squaring means operatively mounted on
said clamp means for spacing and angularly positioning
said drill guide means with respect to a reference edge on
the door, said squaring means including spaced adjust~
ing means operatively connected to the clamp means for
wardly of the door for independently rigidly positioning
3,048,062
5
one of said drill guide means at spaced locations there
along in perpendicular relation to the other drill guide
means, and lateral adjusting means mounted on the clamp
forwardly of the door ‘for laterally adjusting said one
drill guide means independently of the squaring means.
6
Refea'ences Cited in the ?le of this patent
UNITED STATES PATENTS
1,919,900
2,519,468
Moller _____________ __ July 25, 1933
Hengst ______________ __ Aug. 22, 1950
2,886,989
McCuen ____________ __ May 19, 1959
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