Improved Fastener for the Doors of Carts and other Vehicles.
Year: 1892

page_text: Date of Application, 2nd Apr., 1892
Complete Specification Left, 2nd Jan., 18-3-Accepted, 4th Feb., 1893
PROVISIONAL SPECIFICATION.
Improved Fastener for the Doors of Carts and other Vehicles.
I, HENRY THEOPHILUS JARVIS, of 48, Hartfield Road, Wimbledon, Surrey,
Coach Builder, do hereby declare the nature of this invention to be as follows:-
My invention consists of a simple closing device for the doors of carts and other
vehicles to dispense with the ordinary T shaped handles and mortise locks at
present in use.
My improved fastener consists of a metallic bolt or spindle passing through the
door and fitted on the inside with a lock-nut and formed on the outside with an
enlarged boss having a square or other shaped hole for the reception of a key, the
locking catch at right angles to the bolt being formed in combination with the boss
and engages, when closed by turning the key, with a staple or socket on the door
pillar. An ordinary spring adapted to a metallic plate serves to retain the catch of
the device in the open or closed position.
By my invention the catch being on the outside of the door dispenses with the
mortising and consequent weakening of the door as at present, whilst the dis-
advantages of the projecting T shaped handles at present used which are found to
be very inconvenient becoming entangled with the bridles of horses or clothes of
persons standing near the cart is obviated, the fastener being readily locked or
unlocked by means of the loose key aforesaid which can be carried by the driver
or attached by a chain or equivalent to the cart.
Dated this 21st day of March 1909
H. T. JARVIS.
COMPLETE SPECIFICATION.
Improved Fastener for the Doors of Carts and other Vehicles.
I, HENRY THEOPHILUS JARVIS, of 48 Hartfield Road, Wimbledon, Surrey,
Coach Builder, 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 :-
My invention consists of a simple closing device for the doors of carts and other
vehicles to dispense with the ordinary projecting handles and the mortise locks at
present in use.
In the accompanying drawing
Figure 1 is a view illustrative of my improved fastening device.
Figure 2 is a detached view of the key I employ ;
Figure 3 is a front sectional elevation, and
Figure 4 a vertical section of the said fastening device.
Like letters of reference denote corresponding parts.
The fastener consists essentially of a staple or socket A, spring catch casing B,
and a metallic bolt D passing through the door and fitted on the inside with a lock
nut whilst at the opposite end it is formed with an enlarged boss situated in the
casing B, having a square or other shaped hole or slot for the reception of the end
of the key E, the locking catch C at right angles to the bolt being formed in
combination with the boss, and engages when closed by turning the key with the
staple or socket A on the door pillar. An ordinary flat spring F or equivalent
serves to retain the catch C in the locking position as shown in Fig. 1 by dotted
lines, or in the unlocking position as shown in full lines. The end of the key E is
formed with a pin a and lugs b. These are inserted through the slot c in the

page_text: casing B and engage the slot in the boss of the catch C. When the key is turned
and the fastener unlocked the former cannot be removed until the fastener is again
locked, it therefore serves as an ordinary handle to facilitate the opening and
closing of the door. If desired the bolt D can be dispensed with.
By my invention the fastening device being on the outside of the door dispenses
with the mortising and consequent weakening of the door as at present, whilst the
disadvantages arising from the projecting fixed handles ordinarily used becoming
entangled with the bridles of horses or clothes of persons standing near the cart
are obviated, the fastener being readily locked or unlocked by means of the loose
key aforesaid which can be carried by the driver or attached by a chain or
equivalent to the cart, whilst as previously stated it serves as a handle when the
door is opened.
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 is :
In a fastener for the doors of carts and other vehicles the combination with the
staple A and casing B of a spring catch C formed with a solid boss for the recep-
tion of the end of the detachable combined key and handle E and with or without
the bolt D, for the purpose of dispensing with the mortising of the door and pillar
and the ordinary fixed projecting handles all as herein set forth and shown in the
accompanying drawings.
Dated the Second day of January 1893.