US628235A - Gas-heating sad-iron. - Google Patents

Description

` No. 628,235; Patented July 4, |899.

STERN. GkS'l-IEATINS SAD IRUN.

(Appumon mad 1m. 25, 1899.)

(No Mode-I.)

UNITED STATES PATENT OFFICE.

EDWARD STERN, OF BOSTON, MASSACHUSETTS.

GAS-HEATING SAD-IRON.

SPECIFICATION forming part of Letters Patent No. 628,235, dated July 4, 1899.

Application tiled March 25, 1899. Serial No. 710,426. No model.)

Be it known that l, EDWARD STERN, a citizen of the United States, residing at Boston, in the countyof Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Gas-Heating Sad-Irons, and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to figures of reference marked thereon, which form a part of this specification.

The objects of this invention are, first, to provide a locking device for securing the heater within the body of the iron which shall be simple and strong in construction and permit of ready insertion and removal of said heater, and, second, to increase the efficiency of lthe heater by distributing the heat of the gas-flame more generallythroughout its interior. I carry out these objects in manner as hereinafter explained.

The drawings accompanying this specification represent in Figure 1 a side elevation, in Fig. 2 a vertical longitudinal section, and in Fig. 3 a vertical cross-section, of a sad-iron containing` my improvements. Fig. Alisa plan of the body of the iron with the handle and gas-supply pipe removed. Fig. 5 is a view of the cylindrical tube or collet, which serves as a means of confining the heater to the body of the iron. Fig. 6 is a view of the heater removed from the body of the iron. Fig. 7 is a View of the shank or base of the handle, showing the manner of securing the handle to the body of the-iron. Fig. 8 is a horizontal section of the joint between the handle and the body of the iron.

In the drawings the body of the iron is shown at 1 as a hollow box of the requisite shape, such box being provided at various points in its sides with openings 2 to break up its radiating-surface and prevent undue heating of its top.

The heater for heating the bottom of the iron is shown at 3 as composed of a hollow case which when in place extends from the rear to or near to the front of the iron and centrally and longitudinally of the latter, the rear end of this case 3 terminating in a fiat plate or head 5, which partially, though not entirely, closes the rear of the'iron.

For cert-ain reasons pertaining to the casting of the heater its bottom G is cast independently of its body and is simply interposed between such body and the bottom of the iron, and I prefer, in order to provide increased radiating-surface, to cast lateral wings or extensions 7 7 upon the exterior of the case 3. A passage 7 is left between the bottom of the heater and the body thereof for passage of heated vapor to the interior of the iron.

8 in the drawings denotes a vertical tapering opening formed in the top of the case 3 and openin g into the interior of the latter, this opening, when the iron is complete, being occupied by the lower end of a vertical cylindrical tube or co1let 9, which serves not only as a conductor to convey gas to the interior of the case 3, but to lock such case in place within the body of the iron. To accomplish this latter object, I cast upon the top of the body of the iron a tubular boss or extension ll, the lower part of the bore of this boss serving to receive loosely the upper end of the collet 9 before named.

Upon one side of the top of the collet 9 I cast a spur 9', the upper surface of this spur, when the iron is complete, being practically on a level with the bottom of the dovetailed groove which receives the bottom of the base of the handle of the iron. The hand-grasp of the handle is shown at 15, its side arms at 1U 16, these arms terminating at bottom in a com mon base 17, the bottom of such base terminating in a dovetail rib 1S, which when the iron is complete tightly fills a corresponding groove 1i), formed in the top of the boss 11. This dovetailed joint serves to prevent vertical displacement of the handle, while in order to preserve a tight joint, which shall prevent endwise loosening` of said handle, the rib 18 and groove 19 may be made slightly tapering or wedge-shaped longitudinally of the iron. The bottom of the rib 18 rests immediately over the top of the spur 9 of the collet 9, thus preventing lifting of the collet and escape of the heater.

IOO

The gas-supply pipe is shown at 20 as formed 22, which extends into the uppper part of the bore of the collet 9. Gas flows through the pipe 20 and becomes mixed with air, which passes into the bore of the boss l1 through inlets 23, formed in the walls of such boss, these openings 23 also permitting of the introduction of a lighted match to ignite Ithe gas issuing from the nozzle or burner of the gas-pipe.

In order to facilitate and increase the distribution of heat throughout the chamber of the ease 3, such chamber increases in height from the center outward to each end thereof.

To assemble the various parts of this iron in preparing it for use, the movable 'bottom of the heater is held in place against the under side of such heater and the two inserted in place within the body of the iron. The tubular collet 9 is now dropped into the bore of the boss 1l until the lowerend of such eollet is seated in the opening S in the top of the heater 3, thereby preventing withdrawal of the latter. The handle is next added by driving its rib 1S endwise into the channel 19 in the top of the body of the iron, thereby preventing escape of the collet 9, and, lastly, the end of the gas-pipe is inserted within the bore of the base of the handle until the burner of such pipe extends into the upper part of the collet 9.

It will be apparent that in order to release and permit of removal of the heater the collet 9 must first be lifted to such an extent as to remove its lower end from ont of the seat in the top of such heater, and that this cannot be done until the rib 18 of the handle is removed from the channel 19 in the top of the iron.

I claim- In a sad-iron, the combination of the yhollow body, with a heater acting on the bottom thereof, a tube supplying ignited gas to the said heaterand fitting into a passage through the top of the said iron-body, a handle having a passage through its base, and a pipe eX- tending from a source of gas-supply through said base and discharging into said tube, the said handle-base being provided with a wedgeform rib which bears on a part of the said tube to lock it in place, substantially as set forth.

EDWARD STERN.

Vitnesses:

T. P. STERN, F. CURTIS.

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