1439
either for one or two pianofortes, may be executed uponthe double grand piano with greater effect than upon twoof the finest grand pianos. There are several improve-ments in this construction which may be adapted to anyhind of piano, namely, the patent wheel tuning pin, bywhich a lady may adjust a chord to the utmost nicety,t'V the use of a smaE tuning-key and the thumb andfinger, or can tune her own piano; also the iron rest-plate and other iron fastenings, which sustain the pres-sure of the strings entirely independent of the wood-work,and thereby rendering the slightest yielding impossible,thus protecting the sounding-board, by which means thetone of the instrument is preserved, and the chief cause ofgetting out of tune prevented.
This instrument was selected by Benedict for the useof Jenny Lind ’s concerts in New Tork, and was per-formed upon by himself, the celebrated Timm, RichardHoffmann and Scharfenberg, in the largest concert-roomin the world.
91 Starbuck, N. B., Troy, New Tork —Manufacturer.
Fourteen ploughs.
92 Page, Ezekiel, 20 West Street, New York , and38 Eastern R. R. Wharf, Boston —Inventor.Two sweeps, of 36 feet each : made of one stick.
Pour oars, of common stock, in the finished state.
Pour oars, in the rough state, as left by the machinery.Pair of oars, decorated: intended as a present for IlisKoval Highness the Prince of Wales.
Pair of model oars, witli pins: intended to be offeredto the Lords of the Admiralty.
Tlie exhibitor’s patent machinery is in constant operationat two steam factories.
93 Milward, James, & Son, Neiv York —Inventor.White Parmela bonnets.
94 Hotchkiss, Gideon, Windsor, New York —
Inventor.
Noddle-iron, tram-block, and bridge-tree, for saw-mills.
95 St. John, John R., Buffalo, New York . —Inventor.
Self-determining variation compass. Aquatic veloci-
meter. Geered haiid-log.
The first, the compass, is so constructed, that thedeflection of the principal needle is always shown by’indi-cators upon graduated scales. This result is got from theaction of two small or satellite needles suspended uponaxes fastened in the dirk or compass cord, at equal dis-tances and right angles to the centre of the main needles.The extremities of the graduated arcs or scales are markedwith the letters E and W, by "which the character of thedeflection is known, while the quantity is read upon thescales.
The second, the aquatic velocimeter, gives the true ve-locity of a vessel through the water, and the aggregate dis-tance traversed at any time, by the positi on of three hands orindicators upon a dial. The longest hand goes round once111 a nnle, the next once in a hundred miles, and the shortestonce in a thousand miles. The construction of this in-strument is as foEows : a pipe is inserted through thebottom of the vessel, into which the water rises equal tothe draft of the vessel. A frame is prepared, witli twopistons fitting the pipe closely. The lower of the twopistons rests upon a flanche inside the pipe. The lowerpart of the frame drops below the planking, and carries aspiral wheel, where four are placed upon the shaft at anangle to its axis sufficient to turn once in four feet of dis-tance traversed. This motion is communicated to thehands through a train of geerings, by which mechanicalcertainty of action is obtained.
The tim’d, the geered hand-log, is a modification of thevelocimeter, by which the sand-glass, resting upon alever, connects the run of the log-Ene, with a hand movingover a dial, and which is disconnected when the sand is
“ out,” leaving the hand resting upon the figures whichshow the “ rate per hour.” By this the movement is gotfrom any part of the line, without regard to “strayline.”
97 Allen, A. B., & Co., Water Street, New York —
Manufacturers. (Agents in London , Cliarlwood& Cummins, 14 Tavistock How.)
Thermometer chum with a double zinc case, into whichhot or cold water may be put to regulate the temperatureof the cream; a thermometer being attached to showwhen the proper temperature is attained.
Specimens of the most improved kinds of handledaxes for chopping: used in the United States .
Hay-rakes, used . in connexion with liorse-rakcs forgathering hay.
Scythe and sneatli, so constructed that the sneath canbe adjusted to suit the worker.
Two and three tine liay-forks, for pitching and handlinghay, as used in the United States .
Shovel and spade of the pattern which is in commonuse in the United States .
Manure-forks, 4, 5, 6 tine, of the United States pattern.
Sausage-cutter, No. 1, for making fine mince or sausagemeat; it is capable of cutting 100 to 130 pounds per hour.
Sausage-cutter, No. 2; more efficient than No. 1: it hasmince knives and pins.
Sausage-stuffer for fiUing sausages.
Garden-hoe, made from solid steel without welding ;in common use for garden.and field hoeing in the UnitedStates .
Road-scraper, American pattern, for levelling roads,cleansing ditches, digging cellars, excavating, &c.
Post-hole auger, used for setting fences, making holesin the ground for posts, &c.
Indian com sheUer, containing two fly-wheels andfriction roller. This machine is used for the purpose ofsheUing Indian corn from the cob, i. e., separating thegrain from the racliis, which it does effectively with littlelabour at the rate of 200 to 300 bushels per day.
Steel tooth, cast steel, and universal cultivators. Dif-ferent styles of cultivators, used generally for ploughingbetween Indian corn and other crops, used as a substitutefor the hand-lioe. No. 19 is furnished with mould-boards,which, by transfer from one side to the other, the soilis thrown either to or from the liiU: they all contract orexpand to suit the width of the rows.
Pan-mill; in common use in the United States .
Portable patent ladder : it closes up as a pole.
Subsoil plough, used to run in the furrow made by theprevious plough to break up deep soil.
Ordinary plough, complete; it lias attached to it adraught rod and dial elvis, by which the plough may beworked at any required depth, and the team walks clearof the furrow made by the former plough.
Various other ploughs on approved constructions,chiefly for one horse.
98 Gould, James, & Co., Albany, New York —
Manufacturers.
A pony sleigh.
99 Chase, Mary W., Chatham, New York .
An herbarium.