US1763676A - Laundry drier - Google Patents

Description

.I unelv, 1930. AQSCHRAMM 1,763,676

LAUNDRY DRIER Filed Nov. 2l, 1928 5 Sheets-Sheet l June 17, 1930. A. Q. SCHRAMM LAUNDRY DRIER 3 Sheets-Sheet 2 Filed Nov. 21, 1928 June 17, 1930. A. o. scHRAMM LAUNDRY DRIER 5 Sheets-SheetI 3 Filed Nov. 21, 1928 mf pm .P

WQ MW n Patented June 17, 1930 UNITED STATES PATENT OFFICE ALBERT O. SCHRAMM, OF ST'. LOUIS, MISSOURI,` .-ASSIGNOR, V:BYl MESNE ASSIGNMENTS, TO THE AMERICAN 'LAUNDRY MACHINERY COMPANY, OF CINCINNATI, OHIO, A.

CORPORATION or OHIO LAUNDRY :DRIRR Application iilei Novemter 21, 1628. serial No. 320,812.

This invention relates to laundry driers. An object of the invention is to provide an improved device for drying laundry comprising an enclosingcabinet for the laundry to be dried, vin combination with improved means for producing heated air and driving the heated air through the cabinet.

Another'object ofthe invention is to provide a laundry drier of the character and I0 type mentioned wherein the cabinet is provided with a door or closure for the top, and meansv cooperating therewith to stop operation of the mechanism that forces the heated air through the cabinet automatically and as an incident to the opening of the top of the cabinet. Y c

Another object of the invention is to provide a top closure for a drying cabinet having means on opposite sides for. engaging and supportingthe fabrics vto be dried so that the fabric may be placed upon the upper side' of theclosure while the4 fabric on the opposite or inner side of the closure is being dried. Y

Other objects will appear from the following description, reference being made to the drawings in which Fig. 1 is a plan view of my improved laundry drier, part of the cabinet walls being '30 shown in section and the top kclosure being shown in open' position.

Fig. 2 isa side elevation of the device. .Fig 3 is a front end elevation.

Figa is a vertical cross sectional view j of the drying cabinet.

y Fig. 5 is a vertical sectional viev7 on the `line 5-5 of vFig. 4:.

Fig." 6 is a diagrammatic view of the electric circuit same.

My improved dryingl cabinet comprisesV two side walls Y'1, a rear end wall 2,a'front end wall 3 and a bottomV wall 4. f

The front end wall 3 has an opening therethrough which is surrounded by a frame 5 in which is mounted a device 6 constructed and arranged on the principle of an automobile radiator so that water or steam may pass freely therethrough. This radiator 6, being constructed and 'arranged on the principle andthe switch controlling the Y l of an automobile radiator, aslstated, has a large number of openings through which air may be forced from the outside to the inside ofthe drying cabinet.

A manifold 7 has a number of tube or pipe connections 8 Opening into the upper side of the radiator 6 and controlled respectively by valves 9 whereby the amount of steam passing into and through the radiator 6 may be controlled and regulated. The manifold 7 receives steam from a steam supply pipe 10Y leading from some suitablev boiler or source of supply.

vA number of pipes 11 open from the under'. side of the radiator 6 into an exhaust manifold l12 from which the steamis conducted to waste or discharge through an ex-V haust pipe 13. A blower 14 is supported within the frame 5 adjacent to the outer side of the radiator 6.' This blower is on a rotary shaft 15 driven by an electric motor 16, the wiring 17 of Vwhich is controlled by a switch 18.

Y A confined space 19`.(Fig. 5) is formed on the inside of the opposite end of the cabinet by av box 20`havin`g an inlet slot 21near its upper edge. "T he space 19 opens into anumber of pipes 22 which extend longitudinally Y through the cabinet andrjout through openings in the opposite endwall 3. Thus, the hot air that is driven into the cabinet through the radiator 6 passes through the opening 21 into the enclosure 19 and thence to exhaust through the pipes21. Accordingly,`any fabrics that are supported in the cabinet are subjected toa continuous current of hot dry air sothat the fabrics are quickly dried. c Y The closure for the'upper end of the cabinet comprises a pair vof spaced walls 23 forming opposite sides `ofa frame2l1 which is rotatively supported near 'thetop of the cabinet by axial extensions 25. VOn each side ofthe frame V24 fabric engaging devices A26 are secured and these may bemade or composed of -carding brushes. Thus, it 1s apparent that when either side-of the closure is toward the inside of the cabinet a fabric may be secured to the outside of the closure. while the fabric on the inside is being dried.

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The wire 27 from the motor leads to a contact member 28, while the wire 19 from the switch 1S leads to connection with a spring element 29 (Fig. 6). A stem 30 is mounted in the wall 3 of the cabinet and projects through the spring member 29. The stem has a collar 31 which is engaged by the spring element 29 so that said spring element is effective to move the stem 8O out of contact With the contact member 28 when there is no pressure against said stem 30. Near each side of the frame 24 I provide a bowed member 32 which will engage the end of the stem 30 and push said stem in opposition to the spring member 29 to contact with the contact member 28 and thus close the circuit through the motor when the switch 18 is closed. However, when the frame 28 is moved out of closed position it is obvious that the bowed member 32 will be moved away from the end of the stem 30 and Will permit the spring member 29 to open the circuit by moving said stem 30 out of contact with the contact member 28. In this way operation of the motor 1G and the blower 14 is stopped automatically and as an incident to the opening of the cabinet. That is to say, Whenever the frame member 24 is turned on its axis from closed position the motor and the blower are stopped. This is quite an advantage inasmuch as the air within the cabinet becomes very hotA and if the blower continued to operate during the opening of the cabinet the operator wouldv be subjected to the extreme discomfort of the intensely heated air.

In operation the frame 24 is turned to closed position and the fabric secured to the upper side` thereof by engaging the fabric with the holders 26. Then, the position of the frame is reversed so as to place the fabric at the underside of the frame and within the cabinet. lVhen the switch 18 is closed, `the frame 24 now being in its closed position, the motor 16 begins to operate and thereby operates the blo-wer 14 driving air through the hot radiator 6 to the inside ofthe cabinet and thence out through the exhaust pipes 22. IVhen the 'fabric is dried the frame 24 is turned over to reverse position so that the dried fabric is at the outside anda fabric to be dried is on the inside of the cabinet. An an incident to the movement of the frame 24 from closed position the motor is stopped, as above explained. As the frame 24 is moved to closed position to place the wet or damp fabric Within the cabinet and the dry fabric in position for removal at the outside, the bowed element 32 closes the switch to the motor so that the motor automatically starts.

From the foregoing it will be seen that my invention is of a highly useful and simplified construction and possesses many advantages in that the motor is automatically controlled for the most beneficial results. Obviously, the construction and arrangement of the parts may be varied Without departure from the nature and principle of the invention.

I contemplate such variations as may be deemed useful and do not restrict myself unessentially in any particulars, but what I claim and desire to secure by Letters Patent is 1. A laundry drier comprising a cabinet having an opening thereto through one end wall thereof and having an open top, a frame surrounding said opening, a heater mounted in said frame, a device mounted in said frame adjacent to the outer side of said heater for forcing air through said heater and said opening` into said cabinet, means for closing and supporting fabrics across the top of said cabinet, and means in said cabinet forming a passage for conducting air from said cabinet and having an inlet opening near the upper side of the cabinet and at the opposite end of the cabinet from said heater.

2. A laundry drier comprising a cabinet having an opening thereto through one end Wall thereof and having an open top, a frame surrounding said opening, a heater mounted in said frame, a device mounted in said frame adjacent to the outer side of said heater for forcing air through said heater and said opening into said cabinet, means for closing and supporting fabrics across the top of said cabinet, a pipe extending from near the opposite end of the cabinet through said end Wall for conducting air from said cabinet, and a device in said cabinet adjacent to the end opposite from said end wall for conducting air into said pipe and having an air inlet opening thereto near the top of the cabinet.

3. A laundry drier comprising a cabinet having an open top and having an opening thereto through one end wall for the ad mission of air to said cabinet, a device mounted in said frame for forcing air through said frame into said cabinet, means for closing and supporting fabrics across the top of said cabinet, a wall Within said cabinet adjacent to the end opposite from said end wall forming a confined space having an opening thereto near the top of the cabinet, and a pipe opening and extending from the lower portion of said space longitudinally through the cabinet and through said end wall for conducting air from said space.

4. A laundry drier comprising a cabinet having an open top and having an opening thereto through one end wall for admitting air to said cabinet, means for supporting fabrics across the top of said cabinet, a device mounted in said frame for heating the air passing through said frame into said cabinet, a Wall mounted in said cabinet and forming a confined space near the opposite` end of the cabinet from said end wall and having an opening therethrough near the top of the cabinet for admitting air into said confined space, and a number of pipes opening from the lower portion of said confined space and extending longitudinally through the cabinet for conducting air from said confined space.

5. A laundry drier comprising a cabinet having an open top and having an opening into the cabinet through one end wall thereof for admitting air to the inside of the cabinet, a closure for the top of said cabinet, means for supporting fabrics in connection with the side of said closure that is toward the inside of the cabinet, a device in said -opening for forcing air therethrough and into the cabinet, a wall forming a confined space in the cabinet near the end opposite from said end wall and having an opening near the top of the cabinet for admitting air into said space from the inside of said cabinet, and a pipe opening from the lower portion of said space and extending adjacent to the bottom of the cabinet for conducting air from said space and through the cabinet.

6. A laundry drier comprising a cabinet having an open top and having an opening through one end wall thereof for admitting air into the cabinet, a closure for the top of the cabinet, means for supporting a fabric in connection with the side of the closure that is toward the inside of the cabinet, a frame surrounding said opening in said end wall, a heater mounted in said frame, a device mounted in said frame adjacent to the outer side of said heater for forcing air through said heater and said opening into the cabinet, a wall in said cabinet forming a confined space near the end ofthe cabinet opposite from said end wall and having an opening for admitting air to said space from near the top of the cabinet, and a pipe opening from the lower portion of said space and extending through the cabinet adjacent to the bottom thereof for conducting air from said space.

7. A laundry drier comprising a cabinet having an open top and an opening through one end wall for admitting air into the cabinet, a device for supporting fabrics across the top of said cabinet, a wall 1ocated in the cabinet adjacent to and spaced from the end of the cabinet opposite from said opening vand having anopening therethrough near the top of the cabinet for admission of air into the space beyond said Wall, and means for conducting the air from said space.

8. A laundry drier comprising a cabinet having an open top'and an opening through one end wall for admission of air intothe cabinet, a device for supporting fabrics across the top of said cabinet, a wall lo-

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