An Improved Fastener for Window Sashes or other purposes.
Year: 1892

page_text: Date of Application, 9th Sept., 1892
Complete Specification Left, 9th June, 1893-Accepted, 15th July, 1893
PROVISIONAL SPECIFICATION.
An Improved Fastener for Window Sashes or other purposes.
I, PHILIP WATSON BRAMWELL, Clothier, of Lynn Street, West Hartlepool, in
the County of Durham, do hereby declare the nature of this invention to be as
follows:-
This invention consists in a fastener for securing window sashes, cupboard or
other doors or other purposes to which it may be applicable as a fastener.
The improved fastener consists of two members, the one a pivoted or hinged and
counterweighted plate which is of a double or forked form so as to present two
projecting tongues one called the operating tongue the other the locking tongue.
Either of these tougues may have a projection on its upper or lower face for a
purpose hereinafter described. The other member consists of a fixed projecting
tongue or plate adapted to enter and lie between the two tongues on the first
member or to strike the operating tongue as the sashes or equivalents are brought
together so as to bring the first member into its locking position. This tongue or
plate may be part of the frame which is prolonged to form a fork or other form of
guide in which a sliding or a locking bolt is movable in the same direction as the
tongue but at a distance above the latter. This bolt which is protruded by a
spring lies above the uppermost tongue on the other member when the fastener is
closed. The projecting tongue on the second member may have a recess or slot to
receive the before mentioned projection on one of the tongues of the first member.
To unfasten the device the bolt is drawn back, the sash can then be raised and
will vibrate the other member of the fastener into an upright position. When the
sash is again closed the projecting tongue on the second member enters between
tongues of the first member and turns the latter downward entering between the
said tongues, the sliding or rocking bolt then springs over the uppermost tongue
and locks the sashes. There may be a catch or fastener of any sort to prevent the
bolt being drawn back and so keep the fastener from being unclosed.
When a rocking bolt is used its underside is curved to pass above the locking
tongue. If the tongue is curved upward at its outer end and the rocking bolt is
also suitably curved the latter acts also to draw the sash bars together.
When a rocking bolt is used in such position that it falls into its locking position
by gravity, then a spring need not be employed. A stay bar or latch may be used
to temporarily retain the rocking bolt in a raised position preparatory to opening
the window sashes.
Dated this 9th day of September 1892.
HERBERT & Co.,
Agents to Applicant.
COMPLETE SPECIFICATION.
An Improved Fastener for Window Sashes or other purposes.
1, PHILIP WATSON BRAMWELL Clothier of Lynn Street, West Hartlepool in
the County of Durham, 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 consists in a special design and construction of fastener for
securing window sashes cupboard or other doors and like objects to which it may be

page_text: I will fully describe my invention with reference to the accompanying drawings
in which Figure 1 shows a sectional side-elevational view and Figure
a plan view
of my improved fastener,. both these figures showing the members forming the
fastening device locked or fastened. Figure 3, shows a sectional side-elevational
view of the same-parts in an unlocked or unfastened position as will be more
particularly hereinafter described and. in the following description like marks of
reference designate like parts.
Referring to the drawings it will be seen, that, there are two main members of
irregular formation, marked A and B of which the former is, centred at a and
the latter at b. Each of these members is pivotted in a double-cheeked or flanged
bracket, a showing the bracket in which A is hung and b' that in which B is hung,
sa being secured to sash 'd' and 'to sash D.
Referring to bracket bit will be seen that a bridge or cross-piece 2 connects the
cheeks and this bridge is also used as a striking plate for one of the tongues 3 of
the member A the other tongue 4 of this member having a special function
hereinafter explained. Hinged or pivotted at 5 between the cheeks of bracket b
is a bar or latch 6 and at its outer extremity à lug 7 is formed on it. A string or
cord 8 is shown attached to this lug and as shown in the drawings it is led thence
through the eye 9 of the pin on which member B is centred to any convenient place
forhandling though obviously it may be led from the lug over a pulley or through
an eye fixed in any desirable position.
upper
The lower part of member B is formed to more or less coincide with the
curve or portion of member A and one or more teeth or serrations 10 are likewise
formed on the underside of: B with which or with one of which the pointed, end of
latch 16 is designed to engage as hereinafter explained.
The member A has its weights or centre of gravity distributed so that when
over-turned.as shown in Fig: 3 it shall remain in that position until, acted upon by
another force. d, dare meant to represent two window-sash bars on which are
mounted the parts composing the fastening device the action of which I will now
explain.
1
In Figures 1 and 2 the parts are locked together and the window is shut and
locked. Toropen the window pull the cord 8.or r otherwise lift the latch 6.or
member B. The cord acting from the eye 9 or from a-pulley situated in, any
convenient position as aforesaid on the lug 7 pulls up latch 6 and raises member, B
until latch 6 locks: itself in a serration 10 formed in member B and the hindermost
part of member A being the heaviest tongue 4-rises synchronously with the lifting
of member B. and before B has been raised a sufficient height; for latch 6 to engage
with its serration sashid is free to descend or sash 'd is free to ascend as illustrated in
Figure 3. Thus supposing that has descended and that it is intended to again'shut
and lock the,window-fastening when d' is raised tongue 3 passing up through groove 3*
cut in sash & first strikes against bridge 2 and this partially over-turns member A and as
sash d¹ continues to rise into its shut position, tonguest in its segmental traveli first
strikes against the rear-portion of member B and then slightly raises it which
allows latch, 6 to fall and then as sash d' rises members A and B automatically
assume the locked position shown and described with reference to Figures 1 and 2.
Bridge 2 serves to connect the sides or cheeks of bracket al. is a lug with a hole
in it to fit a padlock to prevent member Brising should this be found desirable.
The number of serrations 10 may, as already mentioned vary asymay, the precise
form of the several members.
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:
1. An improved fastener for window sashes and other purposes consisting in the
combination and co-operation of the several members A, B and 6 shaped, centred
and adapted to operate with respect to one another and as regards their subordinate"

page_text: parts viz. tongues 3 and 4 bridge 2 and serrated surface 10 substantially as and for
the purposes hereinbefore described and illustrated.
2. The improved fastener for window sashes and other purposes consisting of the
several members A and a¹, B and b', and latch 6 all shaped arranged and adapted
to operate substantially as herein set forth.
Dated this 8th day of June 1893.
A. CRAWHALL CHAPMAN,
3, St. Nicholas Buildings, Newcastle-on-Tyne, Patent Agent.