Improvements in and connected with Angular Braces and Drills.
Year: 1895

page_text: Date of Application, 7th Oct., 1895
Complete Specification Left, 7th July, 1898-Accepted, 22nd Aug, 1896
PROVISIONAL SPECIFICATION.
Improvements in and connected with Angular Braces and Drills.
I, ARTHUR ALBERT TATTERSALL of Mill Hill Tool Works, Mill Hill,
Blackburn, Lancashme, Engineer, do hereby declare the nature of this invention
to be as follows:-
:-
This invention relates to angular braces and drills and it has for its object
to improve their construction
With angular braces or drills, as at present inade. when it is desued to bore
holes close to wash boards, coincis, etc., great difficulty is experienced in keeping
the brace or drill steady, especially so if the boring necessitates heavy pressure.
The unsteady and uneven action of the brace or drill causes the holes to be
bored, very often, off the straight. The unsteady action of the brace o drill
also often causes the bits to be broken.
My invention is mainly designed to overcome these objections.
In order that the angular drill or brace may be kept steady, I fit a guide,
bracket, aim, stay, or equivalent, on or near to the angled joint of the brace or
drill.
The guide, or equivalent, may be fitted on or to or cast one with a casing,
enclosing or partially enclosing the angled joint. The oasing may be free to
move along or in the guide, and be secured firmly in position by a thumb or
other screw. Small lugs may be cast on the casing, which may slide in slots,
formed in the guide. The angled shafts or spindles may be made to gear with
one another in any suitable manner.
The angled joint may be used in connection with a bienst drill. In this case an
intermediate chuck may be used for connecting the angled spindle to the bit holder
or chuck of the drill. The intermediate chuck may be squared at one end, so as to
fit on the squared end of the augled spindle, and be round at the other end, where
it fits into the chuck or bit holder of the drill The intermediate chuck may be
secured to the drill by a pinching scrow.
The twist or other drill may be secured in the bit holder of the angular drill or
brace, by a pinching screw, spring catch, or a chuck.
The casing may be made with a sung or projection for the better holding of the
drill or brace.
By using a guide, stay, or equivalent, when boring holes in places inaccessible to
the ordinary ciank brace, such as, say, near a wash board, the angular brace or
drill is kept at a certain distance from the wall, so that the holes are bored
perfectly straight, and the bit works steadily. The guide also serves as a rest
or support for the drill or brace.
By adjusting the casing in the guide, holes may be bored at any desired
distance, within the length of the guide from the wall, with case and accuracy.
When the holes are to be bored at a greater distance from the wall, a piece of
wood, or equivalent, can be inserted between the guide and the wall, for the guide
to rest against.
The guide may be used on any suitable form of angular brace.
The guide may be fitted with a roller or rollera.
In some cases a suitably shaped arm may be used instead of a ensing.
Dated this 5th day of October 1905.

page_text: improvements in and connected with Angular Braces and Dril18.
1, ARTHUR ALBERT TATTERSALL of Mill Hill Tool Works, Mill Hill,
Blackburn, Lancashire, 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 angular or close boning braces and drills and it has
for its object to improve their construction.
With augular biaces or drills, as at present made, when it is desired to bole
holes close to wash boards, coiners, etc., great difficulty is experienced in keeping
the brace or dill steady, especially so if the boring necessitates heavy pressure.
The unsteady and uneven action of the brace o drill causes the holes to be bored,
very often, off the straight. The unsteady action of the brace or drill also often
causes the bits to be broken
My invention is mainly designed to overcome these objections
In order that the angular or close bouing drill or biace may be kept steady, I fit
a guide bracket, aim, stay, or equivalent, preferably on or near to the angled joint
of the brace or dill
The guide, o equivalent, may be fitted on or to or cast one with a casing,
enclosing or partially enclosing the angled joint. The casing may be free to move
along or in the guide, and be secured firmly position by a thumb or other screw.
Small lugs may be cast on the casing, which may slide in slots, formed in the
guide. The angled shafts or spindles may be made to gear with one another in
any suitable mauner.
The twist or other dill may be secured in the bit holder of the angular dull or
brace, as usual, by a pinching screw, spring catch, or a chuck.
The casing may be made with a snug or projection for the better holding of the
drill or brace.
And in order that my said invention may be properly understood I have
hereunto appended, a sheet of drawings which show, by way of example, several
forms of close boring tools fitted with my invention.
Figs and 14 show one form of angular biace in side view.
Fig. 2 shows, in side view, another form of angular brace.
Fig. 3 shows one of my close boring braces with the guide fitted thereto
Fig. 4 shows an ordinary ratchet brace with the guide fitted thereto.
Fig. 5 shows a different form of close borer with a guide fitted thereto. This
view shows the method of using the guide.
Fig. 6 shows a part of a close boier such as at Fig. 3 fitted with a different form
of guide. Fig. 64 is a plan view of the guide. Fig. 6B is a plan view of another
form of the same guide.
Fig. 7 is a plan and side view and Fig. 8 a
Fig. 1.
front view of the guide shown in
On the drawings the same reference letters wherever repeated indicate the same
or similar parts.
Refering to the drawings.-
Figs. 1 and 14 show an angular brace or close borer having its angled
spindles a, b, which are provided with bevel wheel gearing at their inner ends as
indicated in dotted lines, working within a cast metal casing c made in halves and
secured together by screws d. Cast on the casing at each side, 18 a lug. The
casing is also provided with a passage g (Fig. 1^) for the reception of the screw
bolt and with a snug h for enabling the tool to be firmly held.
The guide 2, as shown more clearly at Figs. 7 and 8, consists of a forked bracket
having, preferably, a rearward projection and a rounded extremity or a roller

page_text: at the front end of each branch of the fork. The branches of the fork are slotted,
as shown in the side view at e, for the greater part of their length. A screw boltj
is passed through these slots, as shown, and is held in place therein by means of a
thumb nut at one end and the head at the other end.
thumb nut is screwed on it
The guide is applied to the brace as shown at Fig. 1, that is to say, the
fork, without the scrow bolt, is passed on each side of the casing c and the lugs f
inserted in the slots, then the screw bolt is passed through the slot at oue side,
the hole or passage g of the casing, and the slot on the other side, whereupou the
The casing can be moved along or in the guide being
kept in position by the lugs and when adjusted to the right position it can be
The line X, Y, Z,
held securely in place by tightening up the thumb nut.
indicates the corner of a 100m aud it will be seen that the rounded extremities i
bear against the wall and guide the tool when boring.
The guide shown at Fig. 2 18 one similar to that at Fig. 1 and the screw bolt
is passed through a lug & cast on the tool.
In Fig. 3 the guide is shown as secured by a bolt to the stay of the tool.
fis a guide lug ou the stay.
In Fig. 4 the guide is shown as secured to the shauk n of the breast piece
being held in position by the lugs and bolt, as before. In this case the guide is
With this tool when
shown as made in two parts joined together by a screw m.
the ratchet is given half a turn for close boring the breast piece does not move
round but is firmly held in the hand.
o, Fig. 4, 18 another form of solid metal guide which is shown as screwed to the
breast piece. This guide has a rounded eud o' or a roller.
Either of these forms of guide can be used with this tool.
In Fig. 5 the guide i is fitted in the same manner as the guide i at Fig. 4. This
view shows the tool in position with the guide bearing against the wall Y. Z.
The guide p Fig. 6, is somewhat similar to the guide o Fig. 4, but it is held in
place by a bolt and nut, passed through a slot e in the guide. Fig. 6 shows the
guide in plan view, it will be seen that it is somewhat of a Y shape Instead of
making it this shape it may be made as shown at Fig. 6. If desired the slot may
be inade in the end of the tool as indicated in dotted lines at q, Fig. 6, and the
guide be plain with a hole in it for the bolt J.
The guide can be altered in shape and design to suit different forms of tools.
By using a guide, stay, or equivalent, when boring holes in places inaccessible
to the ordinary crank brace, such as, say, near a wash board the angular brace or
drille kept at a certain distance from the wall, so that the holes are bored
perfectly straight, and the bit works steadily. The guide also serves as a rest
or support for the drill or brace.
'
By adjusting the tool in the guide, holes may be bored at any desired distance,
within the length of the guide from the wall, with ease and accuracy.
When
the holes are to be bored at a greater distance from the wall a piece of wood,
or equivalent, can be inserted between the guide and the wall, for the guide to
rest against.
The guido may be used on any suitable form of augular ou corner boring brace.
The angled joint (Figs. 1 and 14) may be used in connection with a breast drill.
In this case, an intermediate chuck may be used for connecting the angled spindle
to the bit holder or chuck of the drill. The intermediate chuck may be squaled
at one end, so as to fit on the squared end of the angled spindle, and be round at
the other end, where it fits into the chuck or bit holder of the drill. The
intermediate chuck may be secured to the drill by a pinching screw.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manuer the same is to be performed I declare that what I
consider novel and desire to claim 18:-
1. The combination with an angular or close boring drill or brace of a guide or
its equivalent substantially as and for the purpose set forth.

page_text: 2. The construction of angular drill with its guide i substantially as hereinbefore
described with reference to Figs. 1, 14, and 7 and 8 of the drawings annexed.
Dated this 6th day of July 1896.
II. D. FITZPATRICK,
70 Wellington Street, Glasgow, Agent.