Improvements in Awnings and Sunblinds.
Year: 1892

page_text: Date of Application, 1st Sept., 1892-Accepted, 15th Oct., 1892
COMPLETE SPECIFICATION.
Improvements in Awnings and Sunblinds.
We, WILLIAM THOMPSON, of 58 Frederick Street, Sunderland, in the County
of Durham, Merchant, and DAVID DISHART, of 10 Lilburn Street, Sunderland,
aforesaid, 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 :-
Our invention relates more particularly to awnings and sunblinds used in front of
shop, or other windows.
As ordinarily constructed, a blind of this description is coiled upon a roller at
the top of the window, the outer edge of the blind being affixed to a beam or rod
supported at its end by stays, hinged to the sides of the window.
The main objects of our said invention are to provide improved means for raising,
and lowering such blinds, and an improved mode of constructing the stays used
therewith.
In the accompanying sheet of drawings, which illustrate the application of our
invention to an ordinary outside shop blind,
Fig. 1 is a front elevation of the blind roller and winding arrangement.
Fig. 2 is a cross section through the roller at a a in Fig. 1.
Fig. 3 is an end elevation, and Fig. 4 a plan of the bracket carrying the roller.
Fig. 5 is an end elevation of the blind when open.
Fig. 6 is a similar view showing the blind closed.
Fig. 7 is a plan of the inner end of stay and stay bracket, and
Fig. 8 is a similar view of the outer end of stay.
Similar letters of reference denote similar parts throughout the drawings.
A. is the blind roller, having a double chain wheel B C fixed at one end, and a
single chain wheel D at the other end
Within the shop a chain wheel E is journalled on a stud and connected with the
wheel C by an endless chain F. By rotating the wheel E the roller A will be
rotated and the blind wound in or out.
For small light blinds the wheel E may be operated by a winch handle, but for
heavier work, a pinion H is attached thereto and operated by a toothed quadrant or
sector J, provided with a lever handle J. The pinion H may be a spur pinion, as
shewn, or a bevel pinion, the teeth of the sector being made to correspond according
to which position may be the most convenient for the sector to occupy within the
shop. For heavy blinds or awnings this winding arrangement may be applied to
both ends of the roller A.
To secure the blind to the roller, a groove is formed in the latter, parallel
with its axis, and the edge of the blind is laid therein, and fastened by means of a
key consisting of a long strip c driven in end ways, one of the chain pulleys being
temporarily removed for this purpose. The roller is shown as supported by
brackets d, having sockets e to receive the roller pivots, and slots ff to receive
bolts or screws for attachment to any required support. By merely slackening the
said bolts or screws the brackets and roller can be readily removed when required.
Kis the ordinary beam or moulding at the outer edge of the blind, it is supported
by stays L, which are constructed as follows. At the outer end the stay is formed
with a curved part L', which, when the blind is closed, fits against the roller, as
shown in Fig. 6. The inner end works in a hollow vertical guide or socket M,
formed in cross-section as shown in Fig. 7, with a vertical slot M' in its front
face. Lugs or shoulders L L³ are provided on each side of the stay, the lugs L³
being within the guide M, and the lugs L³ outside. The lugs L' thus confine the
stay within the guide, and when it is extended as shown in Fig. 5, the lugs L' abut

page_text: against the outer face of the guide. A chain N.is affixed at one end to an eye N¹
in the outer end of the stay, it passes over the chain pulley B and has its other end
affixed to an eye N2; in the end of the stay within the guide. A similar chain
applied to the other stay passes over the chain pulley D. When the blind is open
these chains support the weight of the stays L L and the beam K, and when
the blind is raised by the chain F, 'as before described, the chains N N are wound
in by the pulleys B D and draw up the said stays and beam, thus relieving the blind
itself of all strain.
When the blind. is closed the slack of the chains N N is contained within the
guides M, M, as shown in Fig. 6.
The above arrangement, although described as applied to an ordinary outside
shop blind, is equally applicable to other varieties of outside blinds and awnings,
the details of construction being modified when necessary to suit the circumstances
of the case.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim, is
1. In a roller blind or awning, the combination of a roller A; chain pulleys C
and E and endless chain E, spur, or bevel pinion .H,.spur or bevel sector J, and
lever for operating the roller A, substantially, as set forth.
2. In a roller blind or awning, a roller A having the combination described in
the preceding claim applied to each end, substantially as set forth:
3. In a roller blind or awning, a stay L having lugs or shoulders L³, L³, provided
on its inner end, in combination with a hollow guide M, having a vertical slot M'
and lugs L sliding within the guide, and the lugs L³ engaging with the outer face
thereof, substantially, as set forth.
4. In a roller blind or awning, the combination of stays L, L, having lugs L², L³,
hollow guides. M, M, having slots M¹, chain pulleys. B, D, on the blind roller and
chains N,. N, substantially as set forth.
5. In a roller blind or awning, the combination of a roller A, chain pulleys C
and E, an endless chain E, spur or bevel pinion H, spur or bevel sector J, lever J,
stays L, L, with lugs L2, 13, hollow guides M, M, with slots M', M, chain
pulleys B D, and chains N, N, substantially as set forth.
6. In a roller blind or awning, the combination of a roller A, chain pulleys B, C, D,
and E, an endless chain E, pinion H, sector J, lever J¹ and chains N; N, substantially
as set forth.
* Dated this 1st day of September 1892.
AMBROSE MYALL,
21, Cockspur Street, London, S. W., Agent for the Applicants.