An Improvement in Landau or other Carriage Door Lock Fastenings.
Year: 1892

page_text: Date of Application, 23rd Nov., 1892
Complete Specification Left, 23rd Aug., 1893-Accepted, 23rd Nov., 1893
PROVISIONAL SPECIFICATION.
An Improvement in Landau or other Carriage Door Lock
Fastenings.
FREDERICK LOVETT Coach Trimmer 8 St. James Gardens St. James Street
Brighton Sussex. I do hereby declare the nature of this invention to be as follows:--
A preventative against landau or other carriage door glasses being broken by
the attempts to open the doors while the glass frames are in the head pillars.
The improvement consists simply of a lever lock inserted in the door pillars and
connected with the door lock, so that when the glass frame is in the head pillars,
the lever lock bolt inserts itself in or about the door lock catch, so preventing the
door lock, & handle, being turned, & the door opened while the frame is up, but
when the frame has fallen to its bearings in the door, & cleared itself of the head
pillars, the lever lock bolt disconnects itself from the door lock catch, assisted by
an attachment on the glass frame, thereby leaving the door lock, & handle, to be
turned, & the door opened, and shut, at will.
Dated this 21st day of November 1892.
COMPLETE SPECIFICATION.
An Improvement in Landau or other Carriage Door Lock
Fastenings.
FREDERICK LOVETT 8 St. James's Gardens St. James's Street Brighton in the
County of Sussex Coach Trimmer. I 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 :--
A preventative against landau and other carriage door glasses being broken while
the frame is up or partly up in the head pillars. The frame will fall and entirely
clear the head pillars before the door handle can be turned and the door opened.
The same being automatic in action. The improvement consists of an ordinary
carriage door lock the catch being slightly lengthened the door lock contains a
small hole drilled through the back part of the case and catch, to allow a small
pin attached to lever lock spring to insert itself and so prevent the door lock catch
being turned and the door opened when the glass frame is off its bearings at the
bottom of carriage door or while the frame is in or partly in the head pillars the
lever lock is fixed in the glass frame groove inside the door pillars and parallel with
the door lock.
The lever which releases the pin from the door lock catch is struck by a small
wheel, when the frame is entirely down and clear of the head pillars. The wheel
is attached to a spring and fixed on the edge of glass frame, when the frame has
fallen on its bearings at the bottom of door, the wheel and lever meet in contact
and releases the pin from the door lock. The handle can then be turned and the
door opened and closed at will.
In the accompanying drawing
Fig. 1 Sheet 1 represents the inside and lock fixing part of carriage door
pillar B, the glass frame I as raised to the head pillars, shewing the lever lock A, fixed
in its position in the door glass frame groove N, the lever lock pin C, inserted in
the door lock D, catch E, pin hole H, the lock catch E being struck as when the
carriage door is fastened, the pin C, securing the catch E in that position untill
released by the wheel F fixed upon the glass frame I.

page_text: Fig. 2, Sheet 1, also shows the inside part of door pillar B, lever lock A, and
section of glass frame I with wheel Fattached. The glass frame I is shown as if
fallen on its bearings at the bottom of carriage door and has cleared itself of the
head pillars, thus bringing the wheel F into contact with lever J and releasing
pin C, from the door lock D, catch E, and leaving the door handle G, and lock
catch E to be turned either way and the carriage door opened or closed.
Fig. 3 Sheet 2 represents section of glass frame I as entirely withdrawn from
the carriage, shewing wheel F and spring K fixed in their position, the spring K
fully expanded, also a small incision L which is concealed in the glass frame I one
eighth part of an inch deep to allow the spring K wheel F and spindle O, to
contract when the frame I is in the door or head pillars.
Fig. 4 Sheet 2 shows the side view of door lock D also pin hole H and mortice M,
for the door handle G spindle.
Fig. 1 and 2 Sheet 1 is shewing door lock D and lever lock A in their full
working and practical size.
The space required in the door pillar groove for lever lock A. insertion is three
sixteenths of an inch deep.
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 I
claim
First is, the complete action of this improved ordinary carriage door lock and
the lever lock combined, and that these locks connected will thoroughly prevent
the door glasses from being broken. The glass frame will fall in the door and
entirely clear the head pillars before the carriage door can be opened either from
the inside or outside of the carriage. With this fastening an inside door handle
can be added with perfect safety and will act with the same effect as the outside
handle.
Secondly. This improved door lock if required can be fixed in the same mortice
as the ordinary lock has occupied without further weakening the door pillars. It
can also be fitted to the lightest made landau door without weakening the pillar.
Dated this 22nd day of August 1893.
FREDERICK LOVETT.