US309811A - And john n - Google Patents

Description

(No Model.) f 2 sheets-sheet 1. yT. H. WILLIAMS, S. D. TOMPKINS 8v J. N. MATLOGK.

RADIATOR. No. 309,811. N Patented 1360.23, 1884.

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Patented Dec. 23. 188.4.

RADIATOR.

(No Model.)

INVENTOR WITNESSES:

(UNITED, vSTATES PATENT OFFICE.

rrHoMAS H. WILLIAMS AND SAMUEL D. froMrKiNs, oF. JERSEY CITY, NEW JERSEY, AND JOHN N. M AfrLocK, oEEEooKLYN, NEW YORK.

' RADIATOR.'

l v SPEIPICATION forming part of Let-ters Patent No. 309,811, dated December 23,v 1884.

Application iiled'Jnne 27. i883. (No model.)

To all whom it may concern: y

Be it known that we, THOMAS H. WILLIAMS and SAMUEL D.ToM1 KINs, bot-h of Jersey City,

in the county of Hudson and State'of New J er? sey, and JOHN N. MA'rLocK, of Brooklyn,Kings county, State of New York, have made an invention of certain new and useful Improvements in Radiators for Steam-Heating; and

We do hereby declare that the following, in

^ ward between the heated surfaces, while at the same time the interior steam-passage ofthe radiator is well adapted to maintain thecirculation of a current of steam and lthe removal of air by reason of such current. The improvement has reference more particularly to indirect radiators for heating a current of air which, subsequently to being heated, is conveyed to rooms by pipes; but` the improvements are applicable to radiators for all purposes.

The invention consists of a' peculiar pin-sur- 'faced loop-radiator, and of a combination of Y two or more rows of the same with a peculiar stepped base by which the steam is distributed to the severalv rows, all as recited in the claims at the close of this specification.V In order that the invention may befully u n-A derstood, we have represented in the accompanying drawings, and will proceed to describe,- the best form in which we have thus far embodied our invention for practical use, it -be ing understood that the same may be varied as circumstances or the views of different constructersor users may render expedient.

Figure 1 of said drawingsrepresents a side view of our pin-loop radiator. Fig. 2 represents a face view of the stepped base with said pattern. Fig. 6 represents a transverse section ofthe greenfsand mold vfor said piuloop radiator, with the cores inplace ready for pouring with melted iron. y

The leading feature of the said radiator is the pin-surfacedloop or pin-loop radiator A.

This article is alpipe having two internal longitudinal passages, b b, which are connected at theclosed .end so as to constitute a loop by a cross-passage, c, and which communicate at the opposite end ofthe loop with the base D,

with which a series of such loops -are combiued for practical use. yThe exterior and interior ofjth'is loop are studded with pins e e e e, bywhich the extent of radiating-surface is greatly increased, while at the Same time the edge of the loop is important, becausethe pins so arranged protrude into the spaces through which the air moves and heat it more eiiectnally. One or more rows of these pin-loop radiators are combined with a base, preferably by constructing the open 'end m of the loop of circular cross-section and screwing it into an opening inthe base.

For indirect heating the base is constructed with one or both of its. Sides in a series of steps, n n um, which are perforated with rows of holes, into which the pin-surfaced loops are iitted,and thesteps have their faces constructed at an angle vwith the plane of the base, so that the loops are inclined, as represented inthe drawings, Fig.` 3, whereby the delivery of condensed water is facilitated, and the horizontal area required for a radiator is reduced. The base is made with Suitable nozzles, r s, for the introduction of steam andthe escape of con- ,70 The arrangement of the pins in the opening f and at the peripheral portant, because it enables the centers of the seats or placesof attachment of the loop-pipes to be set substantially in thesame upright plane, notwithstanding the inclination of the 5 loops, so that the compound radiator occupies less space horizontally as compared'with that which Would-be occupied if the inclined loops projected from au inclined continuous plane surface, in which case the outer ends of Io each lower row of loops would project beyond those of the rows of loops above'them.

We are aware that radiators have been made with pin-surfaces long previous to our invention; but in such cases they had but one Vin- :5Y ternal passage for steam, and as this passage was heated practically uniformly throughout, the circulation was defective. The previous radiators, also being flat -and broad, were necessarily too Weak to withstand internal press- 2o ure, unless made of much greater thickness than is necessary with loop-pipes such; as are represented 'in' the drawings. The defects of the previous pin-surfaced radiators and their cost are so great that frequent efforts have been made to overcome such defects, and We I sought to do so by the production of looppipes with pin-surfaces. The first eiforts were practically unsuccesful, because of the impossibility of molding such pipes by the ordinary methods, as the internal pins of the pattern cannot be drawn out of the mold when the patterns are made in the usual manner for smooth-surface loop-pipes. vWe have, however, discovered that pin-surfaced loop-pipes may be readily'molded by forming the part ofthe mold which makes the surfaces of the sides ofthe passage through theloop bymeansof d ry'- sand cores having their faces formed with cavities corresponding in form. and size with the 4o pins to beproduced in casting the loop, while the parts of the mold at the outer surfaces of the loops may be made of green sand, provided the patterns are made in sections, parts of which may be moved crosswise of the direc-lion in which the pattern is drawn from the san XVe prefer to make the pattern for molding the pin-loop radiators as represented in Figs.

4 and 5, the pattern being divided at the line vu u into halvesconnected by pins, and each half being formed'of three membersH I I. The side members,'l I, are connected with the central member, by means of dovetail tongues t t, fitting into corresponding' grooves' and tapered from the o uter faces of the pattern tothe dividing-lineuuthereof. Theside members have pin projections e e', corresponding with the pins tobe produced by casting. The pattern is molded in a two-part flask of ordinary construction, and the central member, H, of each half is drawn rst from the sand,. after which the side members, I I, may bedrawn fro`m.the sand bymovingthemcrosswise until their pin projections are free of the sand.4 The dry-sand cores for the central `passage of tle 6 5 loop a're'made and dried in the usual manner, f their section being shown at J J in Fig. 6. They and the pipe-cores K K are inserted in the mold beforel the flask is closed," so thatA when the mold is ready for being poured with 7o the' molten metal its cross-section is as shown in Fig. 6.

Having thus described our invention, we declare that we do not claim radiators having their broad ilat surfacesstudded with pins. We are aware, also, that radiating pipes and tubes have been'projected laterally and upward] y from bases, and therefore do not claim, V

broadly, that combination; nor do We claim the combination of rows of pipe-radiators with 8o a base having an inclined continuous plane. surface from which the radiator-pi pes project.

We claim as our invention-- l The pin-loop radiator, substantially as before set forth, consisting of a loop-pipe having the edges of the loop studded with pins in one piece with the pipe.

2. The combination, substantially as before set forth, of rows of pin-loop radiators with a hollow stepped base-plate. j

In witness whereof we have hereto set our hands this 15th day of June, A. D. 1883.

THOS. H. 'WILLIAMS S. D. TOMPKINS. JOHN N. MATLOCK.

Witnesses: i

J. L. ToMPKINs, CEAS. V. TUgrnILL.

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