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Indelible inks
184
Progress o f Practical ~, Theoreiiectl 2feehctnlcs ~" Chemislrk,.
casioned by the rattling of the sashes, which prevails more o r less in most houses with sash windows; in the majority of these cases, the c a u s e I take to be (withall due deference t o i h e opinion of Mr. Nedcalf. Vol. llt. p. 238,) the inferiority el'the materials of' which they and the f r a m e s are com. posed. I have seen a specimen of"kf'hiN~g,~s paten! sashes ¢z~djrame" at the house of his agent here~ which a p p e a r to me l o b e w e l l adapted for avoiding the above.named annoyanc%and require r)nly to be b e t t e r known to insure their more extensive use. T h e f r a m e s n r e of solid deal~ in which are square sinkings for the receplion of the Ice,den weights; o v e r these are fixed beadedlinin,~s, which also conceal the lines, and tbrm s m a l l grooves to receive the metal tongues, fixed in the styles of the s a s h e s : a r~etal tongue is fixed in the head~ and another in the silt of the frame, catching the top and bottom rails when the sashes are shut; the meetings a r e beveled~ and thstened with a common brass sash-fi~stener. T h e whole f o r m i n g a very compact air and water tight window, arch. Meg.
d Plan b?] which the Lines, ,~'e., ofh~mg ~Fb~dow-shutters ,may be concealed. A friend ofmine, a tizw years bacl% executed a plan which perfi~ctly succeeded in producing the above effect. T h e slmtters are made it'~ two heights~ hung as mentioned by t?boracam; and they slide down into a c a s e , the side of which is tbrmed by the window front. This case is closed ;at top by a flap, hinged on the outer edge, which conceals the shutters w h e n they are down~ and supports them when they are up. ~l'here are s i m i l a r flaps to cover the pulley-styles and lines; but they are hinged on the i n n e r edg% and they unite with the architrave, and effectually hide the l i n e % and keep the first-mentioned flap in its place when the shutters are d o w n . These flaps are thrown back, when the shutters are up, between t h e m and the sash head of the window; sufficient space to allow ofthis~ being left betweet~ it and the inner edge of the horizontal top. Ibid,
Indelible l~ks. No. 1 . ~ F o r writing with quill-pens. Indian ink, dissolved in water acidulated with hydrochloric ~ acid ofeom~ merce, and marking 1~ ° on B e a u m ~ s areomeler.I Igo. 2 . - - F o r writing with metallic pens. Indian ink~ dissolved in water rendered alkaline by caustic s o d a , and marking 1 ° on Beaum6~s areometer. No. 3 . ~ F o r printing the indelible designs and p a t t e r n s . Common printing-ink, whitened with a sufficient quantity o f sulphate of barytes, either artificial or natural~ which has been g r o u n d in water tbr a considerable time. ~rag. PolJ.Set. * Murlatle aeld, about sp. gr. 1.28, so called by the French chemists. "1".As Beaum6's areometer is but little used in lhis cotintry, it may be useful to state that if water be taken at 1000 sp. gr. 1° on this instrument is 1007 sp~, gr. 1½o ditto 1010 2° ditto . • • 1014 t~ For the acidulated solution.~To a pint of water add about three teaspoonfuls of murlatie acid. For the alkalized solation.--To the same quantity of water add 100 grains of pure
Progress o f Practical ~, Theoreiiectl 2feehctnlcs ~" Chemislrk,.
casioned by the rattling of the sashes, which prevails more o r less in most houses with sash windows; in the majority of these cases, the c a u s e I take to be (withall due deference t o i h e opinion of Mr. Nedcalf. Vol. llt. p. 238,) the inferiority el'the materials of' which they and the f r a m e s are com. posed. I have seen a specimen of"kf'hiN~g,~s paten! sashes ¢z~djrame" at the house of his agent here~ which a p p e a r to me l o b e w e l l adapted for avoiding the above.named annoyanc%and require r)nly to be b e t t e r known to insure their more extensive use. T h e f r a m e s n r e of solid deal~ in which are square sinkings for the receplion of the Ice,den weights; o v e r these are fixed beadedlinin,~s, which also conceal the lines, and tbrm s m a l l grooves to receive the metal tongues, fixed in the styles of the s a s h e s : a r~etal tongue is fixed in the head~ and another in the silt of the frame, catching the top and bottom rails when the sashes are shut; the meetings a r e beveled~ and thstened with a common brass sash-fi~stener. T h e whole f o r m i n g a very compact air and water tight window, arch. Meg.
d Plan b?] which the Lines, ,~'e., ofh~mg ~Fb~dow-shutters ,may be concealed. A friend ofmine, a tizw years bacl% executed a plan which perfi~ctly succeeded in producing the above effect. T h e slmtters are made it'~ two heights~ hung as mentioned by t?boracam; and they slide down into a c a s e , the side of which is tbrmed by the window front. This case is closed ;at top by a flap, hinged on the outer edge, which conceals the shutters w h e n they are down~ and supports them when they are up. ~l'here are s i m i l a r flaps to cover the pulley-styles and lines; but they are hinged on the i n n e r edg% and they unite with the architrave, and effectually hide the l i n e % and keep the first-mentioned flap in its place when the shutters are d o w n . These flaps are thrown back, when the shutters are up, between t h e m and the sash head of the window; sufficient space to allow ofthis~ being left betweet~ it and the inner edge of the horizontal top. Ibid,
Indelible l~ks. No. 1 . ~ F o r writing with quill-pens. Indian ink, dissolved in water acidulated with hydrochloric ~ acid ofeom~ merce, and marking 1~ ° on B e a u m ~ s areomeler.I Igo. 2 . - - F o r writing with metallic pens. Indian ink~ dissolved in water rendered alkaline by caustic s o d a , and marking 1 ° on Beaum6~s areometer. No. 3 . ~ F o r printing the indelible designs and p a t t e r n s . Common printing-ink, whitened with a sufficient quantity o f sulphate of barytes, either artificial or natural~ which has been g r o u n d in water tbr a considerable time. ~rag. PolJ.Set. * Murlatle aeld, about sp. gr. 1.28, so called by the French chemists. "1".As Beaum6's areometer is but little used in lhis cotintry, it may be useful to state that if water be taken at 1000 sp. gr. 1° on this instrument is 1007 sp~, gr. 1½o ditto 1010 2° ditto . • • 1014 t~ For the acidulated solution.~To a pint of water add about three teaspoonfuls of murlatie acid. For the alkalized solation.--To the same quantity of water add 100 grains of pure