AN IMPROVED HACK CAP OR COVER FOR PROTECTION OF BRICKS PROVISIONAL SPECIFICATION
Year: 1882

page_text: LETTERS PATENT to James David Lampard of 74 Mansford Street Hackney
Road in the County of Middlesex and Frederick Coppen of 1 Essex. Place
Hackney Road in the County of Middlesex, trading as John Boston, for an
Invention of "AN IMPROVED HACK CAP OR COVER FOR PROTECTION OF BRICKS
PROVISIONAL SPECIFICATION left by the said James David Lampard and
Frederick Coppen at the Office of the Commissioners of Patents on the
2nd October 1882.
JAMES DAVID LAMPARD, of 74 Mansford Street, Hackney Road in the County.
of Middlesex, and FREDERICK COPPEN of 1 Essex Place, Hackney Road in the
County of Middlesex, trading as John Boston, "AN IMPROVED HACK CAP OR
COVER FOR PROTECTION OF BRICKS FROM RAIN."
Our invention consists of an improved hack cap or cover for protecting.bricks
from rain, whilst drying in the field.
In constructing our invention two or more pieces of wood or metal, or any other
suitable material are braced on the outside and attached together by hinges or
other suitable means on the innerside. On the said innerside we affix hinged
stays or supports of wood or metal so adjusted that when the cover is open, the end
of each stay shall meet, and by means of a telescopic slide on the one stay or
support being placed on the ends of both we thereby get the desired shape of a
hack cover at present in use, and by disarranging the telescopic slide pressing the
stays upward, the cover will entirely collapse, thereby economizing space so that
they can easily be packed, readily conveyed, or transmitted from place to place.
The hack cover at present in use is made in pieces, which are sent to the various
places where they are required, with workmen to put them together, they are
extremely cumbersome and unwieldy, being fixed structures, take up much space
in the field, even before they are required for use, and when the brickmaking
season is over, they take up so much room, that they are frequently destroyed,
whereas our improved hack cap or cover can be closed and take up very
little space.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said James David Lampard and Frederick Coppen in the Great Seal Patent
Office on the 25th January 1883.
JAMES DAVID LAMPARD of 74 Mansford Street, Hackney Road in the County of
Middlesex and FREDERICK COPPIN [sic] of 1 Essex Place Hackney Road in the
County of Middlesex trading as John Boston. "AN IMPROVED HACK CAP OR
COVER FOR PROTECTION OF BRICKS FROM RAIN."
Our Invention relates to improvements in hack-caps or covers that is to say caps
or covers for protecting bricks or the like from rain during the time that they are
stacked in the open air in order to allow them to dry prior to their being placed in
the kiln, and the said Invention consists in so constructing such hack caps or
covers that the parts of the same may be readily closed or shut up so that they will
occupy but very little space when not required for use and can consequently be
stored in a very small compass as compared with the hack caps or covers at present
in use. Moreover by our improved construction of the said hack caps or covers
we are enabled to complete the same prior to sending them out for use at the place
or places where they are to be employed and thus to obviate the necessity for
sending workmen to put them together at such place or places as is the case when
hack caps or covers of ordinary construction are utilized. In addition we provide
for the ready transportation of our hack caps or covers as when they are closed or
folded up they occupy but little space whereas those heretofore constructed consist
of rigid structures which owing to the large space they occupy are frequently at
the end of the brick making season destroyed owing to the want of sufficient space
wherein to store them.
Our improvements are more particularly illustrated in the accompanying drawing
in which
Figure 1 is a plan of one of our improved hack caps or covers when opened out
or expanded for use and
Figure 2 is an end view of the same.
Figure 3 is an end view of the said hack cap or cover when closed or
folded up.
.
Figure 4 is an end view representing a modified arrangement of the stays or
cross-bars for retaining the parts of our improved hack cap or cover in an open
position for use.
Like letters indicate the same parts throughout the drawing.
In forming the two main parts or portions a a¹ of our improved hack cap or
cover we employ one or more pieces of wood metal or other suitable material
suitably braced or held together and hinged to each other as at a² or otherwise
suitably connected to each other. To the inner or under side of the said parts a a¹
we hinge at c c¹³ the stays or cross-bars b b¹ which are preferably made tapering as
shewn. Upon one of the said stays or crossbars we arrange a sliding piece or
telescopic slide d which when moved or slid into the position shewn in Figure 2
serves to cover and connect the two ends of the stays or crossbars b b' and con-
sequently to retain the hack cap or cover in an open position. When however it is
desired to close the parts a a¹ of the hack cap or cover one upon the other for
storage or other purposes the said slide d is forced backward say upon the stay b'
so as to disconnect the free ends of the stays 6 b¹ and permit them to be turned up
beneath the parts a a¹ which may then be folded up or closed as shewn in Figure 3
thus enabling the back cap or cover to be readily packed or stored or transmitted
from place to place. In order to prevent the parts a a¹ from spreading or opening

page_text: out to too great an extent we in some cases connect the same by means of a band
or strip e of textile or other suitable flexible material which on the opening of the
parts a and a¹ becomes taut and ensures the desired angular position of the said
parts a and a. Or we in some cases connect the said parts a a' near the apex of
the hack cap (when opened) by a spring or band which prevents these parts from
being opened to too great an extent.
In the modification illustrated in Figure 4 of the drawing we have shewn in
place of the stays b b¹ for retaining the parts a a¹ at the desired angle a crossbar f
which is provided with suitable eyes g adapted to engage with projections or hooks
upon the said parts a a¹ and thus retain them at the desired angle to each other.
In this case it will be understood that the use of a flexible band or strip will be
unnecessary.
Although in the above description we have described the use of cross stays or
bars for retaining the parts a a¹ of the hack cap or cover in an open position and.
at the desired angle it will be understood that we may employ other devices for
this purpose for instance we may attach to one of the parts a a¹ one or more hooks
or hooked rods adapted to pass through an opening or openings in or an eye or
eyes upon the other part and thus retain the said parts in the desired relative
position or we may dispense with such stays and provide for holding the parts a a¹
at the desired angle by arranging upon the hacks of bricks or the like longitudinal
boards whereon the parts a a³ of our hack cap or cover are adapted to rest and be
sustained in their proper relative positions.
Having thus described the nature of our Invention and shewn how the same
may be conveniently and advantageously carried into practice we wish it understood
that we claim,
A hack cap or cover so constructed that when not required for use it may be
closed or folded up substantially as above set forth and for the purposes specified.
In Witness whereof we the said James David Lampard and Frederick
Coppin [sic] have hereunto set our hands and seals this 1st day of
December in the year of our Lord one thousand eight hundred and eighty
+500
JAMES DAVID LAMPARD. (L.S.)
FREDERICK COPPEN
(L.S.)