316
[United
57 Dorr, William, 2 Hewell Place, Southampton Street,Camberwell —Inventor.
Self-adjusting chimney-sweeping machine. {WithClasses 5 if 6).
58 Grisdale, John Edwin, 289 Strand —Inventor.Model of a wind-guard, for smoky chimneys.
59 Morrell, G., 149 Fleet Street —Inventor.Registered iron abutments and tension rods on piers.
60 Herring, C., 177 Hkjh Holborn— Inventor.
Patent window and model. A new and simple inventionfor taking out both sashes to clean, &c.
61 Sadler, John H., Leeds —Inventor and Patentee.
A bridge for railways or other purposes, composed of aseries of girders balanced upon piers, presenting singlythe appearance of the letter T. The entire bridge iscomposed of a chain of these girders and piers, TTT; thegirders are firmly locked together at the centre of thearch, each having teeth, like those of a spur-wheel, caston both sides at each end, and plates with similar teethcast on them, which are nicely fitted, teeth within teeth,and bolted firmly together, making a very strong joint;the bolt-holes through the girders being made oblong, anallowance for contraction or expansion is provided.
[A continuous beam, or bridge girder, resting on severalpiers, is stronger than if the girders were disconnected attheir points of support, in the proportion of about 5 to 3.-S. C.J
62 Lowe, Alice, & Co., Salford , Manchester —Inventorsand Patentees.
Patent effluvia trap gratings or grids, applicable topublic streets, courts, passages, hospitals, houses, andsink stones, for preventing the noxious effluvia in mainsewers and drains from escaping to the surface. (See theannexed cuts.) A sewer grating.
Lowe and Co.’s Patent Traps.
The application of these traps may be seen in themodel cottages erected by H.R.H. Prince Albert, oppositeto the Exhibition Building.
63 Bell, William, 40 Pickering Place, Paddington—Inventor.
Suspension-bridge for railway purposes, made rigid bygirders attached to the suspension chain. Suspension-bridge on the same principle, designed for northern rivers,
thickly frozen in winter, so as not to impede the passageof the ice when it breaks up.
Bridge of one arch, of 250 feet span, designed for orna-mental waters. Constructed on the tensile principle, andcalculated to support with safety a load of 472 tons.
Roof, of 400 feet span.
Self-acting flood-gate, for keeping up a uniform head ofwater in mill-dams, weirs, &c.
[The power of the same water wheel depending uponthe quantity of water admitted upon it, and uniformmotion being requisite in the prime mover of all ma-chinery, it follows that the height of water in the mill-dam should be maintained at an uniform level, or a self-acting sluice worked by a varying head, added so as toregulate the supply. If the first can be attained withcertainty, it will insure more perfect action.—S. C.]
64 Naylor, William, 56 James’s Street, Oxford Street—Inventor.
New glass registered ventilators, opened and shut bythe means of a rack and pulley, as a suu-blind.
65 Oliver, O., 68 John Street, Tottenham Court Moad—Inventor.
Registered ventilator and chimney-pot.
Fire-escape, applicable to all the storeys of a buildingat the same time.
66 Hurst, G., High Street, Bedford —Designerand Inventor.
Model of a partition, to rise from and sink into thefloor, as required.
67 Horn, Archirald, 39 Baker Street, Pentonvitle■ —Inventor.
Self-acting iron shutter, for the protection of shop-windows or doors, bankers’ or merchants’ safes, ground'floor windows, &c.; claiming, in use, convenience, poH a 'bility, and freedom from friction.
68 Hill, Samuel, Clifton, York —Inventor.
Model of a window, with six panes to open and^slm*separately, swinging top-heavy, to insure their remainingopen, and fastened with a spring.
Model of a fireplace, with ventilating air chambebehind.
Sliding guard, intended as a protection against acC1 'dents by fire.
69 Bates, T., 9 Domingo Street, Old Street —Inventor
and Manufacturer. „ .
Mode of sash-frame and sashes, to open inwards, *being cleaned.
70 Remington, G. W. & J., 138 Sloane Street—Inventors.
Model No. 1 represents an engine with a st !' a , 1 ^working shaft. Upon it are fixed two levers, whichconnected together by means of a spindle, which e &a circular bolt; this bolt is fitted into an opening f 0 , 1 toD _in the centre of the plate which connects the P. 1S o eBy this arrangement of parts being applied to the u j sof a cylinder, the reciprocating motion of the pmconverted into rotatory motion, and an engine ot §simplicity is obtained. . t j n g
Model No. 2 represents an engine. The recipro. ;,ymotion of the piston is changed into rotatory mo i ^means of cylindrical wedges, two of which are " xe _. tothe working shaft, and the third is placed betwe , g ’ re .the centre wedge is attached the piston, whic aIl dtained in a right line by means of the covering Pffl gr 0 fcross-heads shown outside the cylinder. ,' e .^;ts comthis engine is uniform throughout the stroke •