Improvements in Latches.
Year: 1894

page_text: Date of Application, 1st Feb., 1894
Complete Specification Left, 1st Nov., 1894-Accepted, 1st Dec., 1894
Improvements in Latches.
I, ARTHUR BRINDLEY, of 4 Elford Terrace, Roundhay Road, Leeds, in the
County of York, Locksmith, do hereby declare the nature of this invention to be
as follows:-
My invention relates to a simple arrangement of a latch that is actuated by a
knob, handle or key. The knob or handle is fixed in the "follower" and so
arranged that it can be fixed to a swing door, or any ordinary door. On the jamb
of the door I fix the striker which may or may not be flush with the jamb. On the
fore end plate of the latch I form an opening or groove in which 1 mount, in a
horizontal position on a pin, screw, or stud, a bowl which projects on the outer and
inner sides of the fore end plate. On the face or periphery of the said bowl I form
two notches, one being for the striker, and the other for the arm or lever which
works on a pivot inside the latch, so that in the act of closing the door the striker
comes in contact with the outer notch on the bowl and partly revolves it. When
the door is shut or closed the said arm or lever drops into the notch of the bowl on.
the inner side of the fore end plate. On turning the knob or handle to open the
door the arm or lever is raised out of the notch and the said bowl is forced back to
its former position by means of the striker. During the time the door is open the
arm or lever rests upon the bowl. In fixing my improved latch on swing doors
I attach the striker on one door and the latch on the other, the action of the
striker, the bowl and the arm or lever being the same as above described. Instead
of using a knob or handle the latch can be made to operate by a key. On
inserting and turning the said key to open the door the arm or lever is raised out of
the notch by means of the key, the action of the other parts being the same as
already described. My invention consists in further improvements in latches which
are applicable for cupboard, cabinet, wardrobe and closet doors or the like where a
knob or handle is not required on the inside of the door, the striker is fixed in any
suitable position. On the outside of the door I fix a plate which consists of a
socket on the outer side, and on the inner side is a bracket passing through the
door and on which the bowl having two notches is mounted, and also in which the
spindle of the knob or handle works. On the said spindle is a spring so that in
the act of pulling the knob to open the door the spindle leaves the notch and the
bowl partly revolves thus being released from the striker, on closing the door one
side of the notch on the bow! comes in contact with the striker and partly revolves
it until the spindle of the knob or handle by the action of the spring drops into
the other notch thus fastening the door. On one side of the bowl I form suitable
stop pieces.
Dated the 30th day of January 1894.
ARTHUR BRINDLEY.
АКІЙ

page_text: Improvements in Latches.
I, ARTHUR BRINDLEY, late of 4 Elford Terrace, but now of No. 2 Elford
Terrace, Roundhay Road, Leeds, in the County of York, Locksmith, 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 a simple arrangement of a latch that is actuated by a
knob or handle fixed in the "follower" and so arranged that it can be fixed to a
swing door or any ordinary door. On the jamb of the door a recess is formed in
which is fixed the striker which may or may not be flush with the jamb. On the
fore end plate of the latch is formed an opening or groove in which is mounted in a
horizontal position on a pin, screw or stud a bowl which projects on the outer and
inner sides of the fore end plate. On the face or periphery of the said howl is
formed two notches one being for the striker and the other for the arm or lever
which works on a pivot inside the latch, so that in the act of closing the door the
striker comes in contact with the outer notch on the bowl and partly revolves it.
When the door is shut or closed the said arm or lever drops into the notch of the
bowl (and may or may not be retained therein by a spring or springs) on the inner
side of the fore end plate for keeping the door closed. To open the door the knob
or handle is pulled or pushed or slightly turned and pulled or pushed so that the
arm or lever is raised out of the notch and the said bowl is forced back to its former
or normal position by means of the striker. During the time the door is open the
arm or lever rests upon the bowl.
In the drawings I have shown several ways of carrying the invention into
practice, but I wish it to be distinctly understood that they are to be taken as
examples only, as other arrangements could readily be used in combination with
the bowl without departing from the nature or principle of the invention.
Fig. 1 is an outside front elevation of a latch constructed according to this
invention with push and pull action.
Fig. 2 a plan of latch shown at Fig. 1.
Figs. 3 and 4 are respectively a back elevation, and a sectional plan of latch
shown at Fig. 1.
Figs. 5 and 6 are respectively a front elevation and a plan of striker shown at
Figs. 1 and 2.
Figs. 7 and 8 are respectively an elevation and a plan of latch with push and
pull action adapted for use on a cupboard, cabinet, wardrobe, closet, or like doors.
Figs. 9, 10, and 11 are respectively an elevation and plans, all with part of the
casing removed, of a latch in its closed and opened positions operated by a key.
Figs. 12, 13, and 14 are respectively an elevation and plans--all with part of the
casing removed of a latch in closed and opening positions operated by the turning
of the knob and spindle and combined with a lock.
Fig. 15 is a part elevation of a latch in a closed position of a somewhat similar
construction to that shown at Figs. 1 and 2.
Like parts in all the views are marked with similar letters of reference.
A is the door jamb to which is fixed the striker B either let into a recess, or
fixed on to or flush with the jamb as shown at Figs. 1 and 2, or to the under or
upper side of say a cupboard, cabinet, wardrobe, closet, or the like shelf A' as
shown at Fig. 7. On reference to Figs. 1, 2, 5, 6, 7, 10, 11, 13, 14, and 15 of the
drawings it will be seen that the striker B may be made in several forms, as for
instance at Figs. 1, 2, 5, 6, 10 and 11 the striker is provided with a recess b and
projection combined, with which a recess or notch c of the bowl C to be hereafter
described engages, whilst at Figs. 7, 13, 14, and 15 it takes the form of a projection b

page_text: only with which the said notch engages, on one side of the bowl C may be armed if
desired with stop pieces C to prevent it rotating too much.
E is a door of any suitable construction arranged to be hinged or jointed to the
jamb or framework A at the opposite side thereof to that at which the striker B is
fixed. The casing D₁ of the latch may be either in mortice form as shown at
Figs. 9 to 14, or capable of being screwed to the face of the door, like an ordinary
rim latch or lock as at Figs. 1 and 2, or in the form of a bracket arranged to pass
through or to be fixed to the inner face of the door as shown at Figs. 7 and 8.
On the fore end plate D of the latch is formed an opening in which is mounted in
a horizontal position on say a pin, screw, or stud d-carried by lugs d' d' provided
on the fore end plate D-a circular bowl C which projects on the inner and outer
sides of the said fore end plate as shown in the various views. At Figs. 7 and 8
the bowl C is shown mounted in the end of a bracket D' which is fixed say to a
cupboard door E. In the periphery of the bowl C is cut or formed either two
recesses c c opposite to each other, or at a right or other angle to each other as
shown at Figs. 7 to 14, or a recess c and a notch c' as at Figs. 1 to 4, or a single
recess c and a spring c may be employed as at Fig. 15, but I preferably though
not necessarily so employ either two recesses or a recess and a notch.
The notch engages with the striker B as previously described by which the
door is retained in a closed position, whilst an arm or lever F (hereafter termed an
arm) is arranged to engage with the notch or recess c¹ for as it were locking or
securing the bowl C in the required position for holding it closed.
In the drawings various methods are shown for jointing or pivotting the arm F
to the casing D' according to the action that is adopted for operating or opening
the latch.
Thus when a push and pull action is employed the arm F may be pivotted
vertically and at a right angle to the action of the operating spindle G as shown
at f Figs. 3 and 4, the heel f' being actuated or operated by the projection or
flange of the adjustable boss g mounted and fixed in position upon the spindle G
which is armed with the usual knob or knobs H of ordinary and well known
construction; whilst the toe or forepart f' engages with the notch or recess c¹ of
the bowl. Or a similar result may be obtained by means of the hook lever Fas
shown at Fig. 15, which is pivoted to the casing D₁ at f so that its hook will
engage with the one end of the spring cl whilst the opposite end of the spring
engages with a pin c* fixed to the bowl. The heel fl of the hook lever F engages
with the flange or projection of the boss g on the spindle G as previously described.
But when it is desired that a direct action should be obtained then the spindle G,
to which the handle or knob H is fixed, is mounted in the bracket D' and the outer
end of the spindle G is arranged to take the place of the arm F and to engage with
the notch of the bowl as shown at Figs. 7 and 8. Or when the arm F is
operated by a key as at Figs. 9 and 10 or by a follower I on the turning or partial
rotation of the spindle G as at Figs. 12 and 13 the arm F may be pivoted at the
heel or rear end 7' operated at or about its centre, and its toe or front end f* made
to engage with the notch c¹ of the bowl. When it is not desired to lift or raise the
arm F so that its bottom edge shall clear the top of the bowl Can aperture or
opening f³ may be provided in the toe or front end of the arm F. When this is
the case the recess c¹ is formed by means of the projecting pieces on the bowl C as
shown at Figs. 9 and 10.
Springs J and K are provided and arranged to operate respectively upon the
bowl C and arm F but in some cases, and when preferred I dispense with a spring
for the bowl. During the time the door is open the arm F rests upon the periphery,
top, or other portion of the bowl.
At Fig. 12 a lock L of usual and ordinary well known construction is shown
applied to and combined within a casing D' with the herein described latch.
When a door with my improved latch fixed thereon or thereto has been closed,
the act of pulling the knob to open the door, the spindle or arm F leaves the notch
or recess c¹ and the bowl C partly revolves thus being released from the striker B.

page_text: On closing of the door one side of the notch c on the bowl C comes in contact with
the striker B and partly revolves it until the end of spindle G or of arm F armed
with the knob or handle by the action of the spring K passes into the inner notch c¹
and at the same time the striker B passes into the outer notch c thus fastening
the door.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what 1
claim is :-
1. In latches such as herein described the combination of a notched and recessed
bowl such as C mounted so as to partially rotate in the casing of the latch and to
engage when the door is closed with a striker such as B fixed to the door jamb but
on the pulling or turning of the knob and opening of the door to permit of the said
bowl partially rotating for releasing its hold on the said striker substantially as
described and illustrated in the accompanying drawings.
2. In latches such as described a circular bowl having one or more notches or
recesses formed or cut in its periphery and mounted in the fore end plate of the
latch in combination with an arm operating in conjunction with a spindle and with
said bowl for locking the latter when the door is closed substantially as described
and illustrated in the accompanying drawings.
3. In latches such as described the combination with the circular bowl having
one or more notches or recesses in its periphery and mounted in the fore end part of
the latch casing, of the means for operating it such as arm F, spindle G, boss and
springs J and K, and the striker B substantially as described and illustrated with
reference to the accompanying drawings.
9
4. In latches such as described the combination of a notched or recessed bowl
such as C mounted in the end of a bracket such as D' fixed to a door with a
spindle such as G armed with a knob such as H substantially as and for the
purposes herein described with reference to Figs. 7 and 8 of the accompanying
drawings.
Dated the Thirty-first day of October 1894.
ARTHUR BRINDLEY,
By W. Fairburn-Hart,
Agent.