US1044146A - Splint-drying mechanism for match-machines. - Google Patents

Splint-drying mechanism for match-machines. Download PDF

Info

Publication number
US1044146A
US1044146A US70508912A US1912705089A US1044146A US 1044146 A US1044146 A US 1044146A US 70508912 A US70508912 A US 70508912A US 1912705089 A US1912705089 A US 1912705089A US 1044146 A US1044146 A US 1044146A
Authority
US
United States
Prior art keywords
chamber
match
splint
splints
chain
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US70508912A
Inventor
Frederick Van Dyke Cruser
William Green
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Diamond Match Co USA
Original Assignee
Diamond Match Co USA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Diamond Match Co USA filed Critical Diamond Match Co USA
Priority to US70508912A priority Critical patent/US1044146A/en
Application granted granted Critical
Publication of US1044146A publication Critical patent/US1044146A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path
    • F27B9/22—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path on rails, e.g. under the action of scrapers or pushers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/04—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour circulating over or surrounding the materials or objects to be dried
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
    • F26B15/02—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in the whole or part of a circle
    • F26B15/08—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in the whole or part of a circle in a vertical plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
    • F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
    • F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
    • F26B15/14—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined the objects or batches of materials being carried by trays or racks or receptacles, which may be connected to endless chains or belts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
    • F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
    • F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
    • F26B15/18—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined the objects or batches of materials being carried by endless belts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
    • F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
    • F26B15/20—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all vertical or steeply inclined
    • F26B15/22—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all vertical or steeply inclined the objects or batches of materials being carried by endless belts the objects or batches of material being carried by trays or holders supported by endless belts or chains
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/18—Drying solid materials or objects by processes involving the application of heat by conduction, i.e. the heat is conveyed from the heat source, e.g. gas flame, to the materials or objects to be dried by direct contact
    • F26B3/20—Drying solid materials or objects by processes involving the application of heat by conduction, i.e. the heat is conveyed from the heat source, e.g. gas flame, to the materials or objects to be dried by direct contact the heat source being a heated surface, e.g. a moving belt or conveyor

Definitions

  • FIG. 1 is a side elevation, partially in secti n, of a splint-drying apparatus embodying a good formrrf'our in- I vention, portions of the impregnating tank and splint carrier chain being shown.
  • Fig. 2 is an end elevation of the apparatus.
  • Fig. 3 is a transverse vertical section, as on the line 3-3 ofFig. 1.
  • Fig. 4; is a similar section, as on the line 4.-;4 of Fig. 1.
  • Fig. 5 is a longitudinal vertical section of a splintdrying apparatus embodying a modified form of our invention.
  • Fig. 6 is a transverse vertical section, as on the line 6-6 of Fig. 5.
  • A designates a portion of an endless carrier chain of any known or approved type into which the splints are inserted in consecutive rows and are thus transported in spaced relation to each other through the match making path.
  • Patented NOV. i2, iota Patented NOV. i2, iota.
  • the carrier adapted to contain a solution of a suitable chemical orchemicals into which the rows of dependingsplints. on the chain are progressively dipped to a depth and for a period 'suflicient to accomplish the eflicient impregnation of the splints;
  • This tank is supported in any suitable manner, and the track for the chain is appropriately constructed (as ate) to efiect the depression of the traveling plates or sections ofthe chain toward the tank so as to dip the splints in the im- I pregnatingsolution, then guide the plates or sections above the top of the tank to main tain the splints in the solution, and then raise such plates or sections to withdraw the splints from the solution and permit the progress of the chain with the impregnated splints.
  • C designates the splint dryingstructure which is so constructed and organized that the traveling chain carrying the impregnated splints is efficiently directed therethrough.
  • This structure in its preferred form, comprises an elongated heater 1 surmounted by a horizontal chamber 2- through which travels thechain with its impregnated splints depending toward and adjacent to the top plate 3 of the heater, the inner side walls of the chamber being provided with track-ways a for the chain.
  • the heater embodies a rectangular casing having at its forward end a combustion chamber 4: equipped with a burner 5 for oil or gas, and having at its rearward end a vertical flue 6 in communication with the adjacent end of the chamber 2.
  • the chamber 9 is comprised within a shallow casing 10, the contour of which is such that it branches upwardly from the rear ward end of the heating chamber 2, curves forwardly and upwardly over the latter, then back'and downto a terminal horizontal branch 11, the chamber 9 thus constituting, in effect, a looped continuation of the chamber 2, which interrupts the horizontal path of the chain and insures a prolonged travel of the latter without requiring increased floor space for the match machine.
  • the innor side walls of the chamber, including its inlet and outlet portions, are equipped with flanged wheels 10 which support and guide the chain in its travel.
  • the chamber 9 is provided ,at its outlet portion with a branch or extension 12 constituting an air trunk which leads to a suitable exhaust fan (not shown) whereby the exterior air will be drawn into and through the chamber 2 and therein heated and the highly heated air and gases will be drawn into and through the loop chamber in a mannet to act with efiicient drying effect upon and throughout the mass of splints during their progress through said chambers, the moisture and vapors as rapidly as they are produced being continuously exhausted with the air andgases flowing to the fan.
  • a branch or extension 12 constituting an air trunk which leads to a suitable exhaust fan (not shown) whereby the exterior air will be drawn into and through the chamber 2 and therein heated and the highly heated air and gases will be drawn into and through the loop chamber in a mannet to act with efiicient drying effect upon and throughout the mass of splints during their progress through said chambers, the moisture and vapors as rapidly as they are produced being continuously exhausted with the air andgases flowing to the fan.
  • the wet impregnated splints as they pass through the chamber 2 and enter v the loop chamber 9 aresubjected to an exceedingly high temperature, so as to promote rapid evaporation of the solvent from the splints, and then as theyprogress through the latter chamber the partially dried splints are subjected to a decreasing temperature sufficient to accomplish the complete drying of the splints as they approach and emerge from the exit end of the loop chamber.
  • our invention we are enabled to accomplish the efficient drying of the wet impregnatedsplints in a very short time,one minute, more or less,thus permitting the impregnatingand drying operations to be attained in a continuous match machine without materially increasing the length of the machine or retarding the regular speed of the earr1er chain during its travel through the match making. path.
  • the chamber 9 is constructed within a casing 10 which is supported above the rearward end of the heater,
  • Such chamber being, in the main, comprised between .the inner walls of the casing and a 'large drum 13 which is concentrically arranged within the casing.
  • This drunr is preferably constituted by a wheel which 1s mounted to rotate within the casing, said wheel having spaced peripheral flanges 14 upon which the lateral edges of the chain are supported'so that the splints on the chain will point toward the center of the wheel.
  • the wheel is mounted on shaft 15 which is journaled in .suitablydisposed bearings adjacent the side walls of the casing, which shaft may, if desired, be equipped with any suitable driving connections, such, for example, as the sprocket gearing illustrated.
  • the lower part of the chamber 9 merges with the two converging branch flues 1G, l7 one of which leads from the heater flue 2 and the other to the horizontal branch 11.
  • Suitably located guide wheels 18 are arranged in or adjacent the respective branch .flues 16, 17-; whereby the chain in its travel is directed through the flue 16 to the drum 12, and thence about such drum within the chamber 9; thence to and about the wheel 18in the flue 17.
  • the horizontal path of the chain is interrupted by an extended upward loop which merges with such path at two adjacent points similarly to the first described construction.
  • the wheels 18 are ordinary flanged wheels between the flanges of which] the back of the chain is guided and supported with the splints extending into the proximate flues.
  • the peripheries of these wheels 18 constitute the outer walls of the branch flues.
  • splint drying means for match machines having splint carrier chains, a substantially circular chambered structure having adjacent inlet and outlet portions, and a heater connected with the inlet portion.
  • splint drying means for match machines having splint carricr chains, a sub stantially circular chambered structure having adjacent inlet and outlet portions, and a heater including a combustion chamber and a flue in communication with the said inlet portion.
  • splint drying means for match machines having splint carrier chains, a substantially circular chambered structure having adjacent inlet and outlet portions, a maintaining an air current through said heater connected with the inlet portion, and chamber.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Drying Of Solid Materials (AREA)

Description

F: VAN D. ORUSER & W. GREEN. SPLINT DRYING MECHANISM FOR MATCH MAGHINEI.
APPLICATION FILED JUNE 21, 1912 1,044,146. Patented Nov. 12, 1912.
' 2 SHEETS-SHEET 1.
Shoe-14 60116 m k V :0. (Dru/aw JAY whim w, mm
I. VAN 11. GRUSER & W. GREEN, I SPLINT DRYING MECHANISM FOR MATCH MACHI NES.
APPLIUATION FILED JUNE 21, 1912.
Patented Novil2, 1912;
2 SHEETS-@HEET '2.
'3 Mentb-IA I FREDERICK VAN DYKE CRU SER AND WILLIAM GREEN, OF BARBERTON, OHIO, ASSIGN- ORS TO THE DIAMOND OF ILLINOIS.
MATCH COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION SPLINT-DRYING MEClI-IAINISlVI FOR MATCH-MACHINES To all whom it may concern:
Be it known that we, Fnnnnmon VAN Drnn Cnnsnn and WILLIAM GREEN, citizens of the United States, and residents of Bar berton, in the county of Summit and State of Ohio, have invented certain new and useing apparatus for use in connection with that class of continuous match machines wherein is employed an endless carrier chain into which the-splints are progressively set in parallel rows and thereby transported through the match-making path; the object of our invention being to provide for such machines a structure whereby the wet splints, during their travel from the impregnating bath, are effectually dried in a relatively shortspace of time without materially in; creasing the length of the match machine or retarding the regular speed of travel of the carrier chain; as will be hereinafter described and claimed.
in the drawings Figure 1 is a side elevation, partially in secti n, of a splint-drying apparatus embodying a good formrrf'our in- I vention, portions of the impregnating tank and splint carrier chain being shown. Fig. 2 is an end elevation of the apparatus. Fig. 3 is a transverse vertical section, as on the line 3-3 ofFig. 1. Fig. 4; is a similar section, as on the line 4.-;4 of Fig. 1. Fig. 5 is a longitudinal vertical section of a splintdrying apparatus embodying a modified form of our invention. Fig. 6 is a transverse vertical section, as on the line 6-6 of Fig. 5.
A designates a portion of an endless carrier chain of any known or approved type into which the splints are inserted in consecutive rows and are thus transported in spaced relation to each other through the match making path. t
B designates a tank suitably located be- Specification of Letters Patent.
Application filed June 21, 1912. Serial No. 705,089.
Patented NOV. i2, iota.
neath the carrier, adapted to contain a solution of a suitable chemical orchemicals into which the rows of dependingsplints. on the chain are progressively dipped to a depth and for a period 'suflicient to accomplish the eflicient impregnation of the splints; the
chemical or chemicals being of such a nature as to render the splints nonglowing after the splints, as finished matches, have been ignited andeXtingui-shed. This tank is supported in any suitable manner, and the track for the chain is appropriately constructed (as ate) to efiect the depression of the traveling plates or sections ofthe chain toward the tank so as to dip the splints in the im- I pregnatingsolution, then guide the plates or sections above the top of the tank to main tain the splints in the solution, and then raise such plates or sections to withdraw the splints from the solution and permit the progress of the chain with the impregnated splints. y I
C designates the splint dryingstructure which is so constructed and organized that the traveling chain carrying the impregnated splints is efficiently directed therethrough.
This structure, in its preferred form, comprises an elongated heater 1 surmounted by a horizontal chamber 2- through which travels thechain with its impregnated splints depending toward and adjacent to the top plate 3 of the heater, the inner side walls of the chamber being provided with track-ways a for the chain. The heater embodies a rectangular casing having at its forward end a combustion chamber 4: equipped with a burner 5 for oil or gas, and having at its rearward end a vertical flue 6 in communication with the adjacent end of the chamber 2. In the extended space intermediate the combustion chamber and the'flue 6 are arranged vertical bafiie plates 7, whereby when the oil or gas is ignited at the burner the hot gases and products of combustion, in, their .thetop plate of the casing, and also to prevent the passage of the flames to the rearward end. of the chamber 2. The bottom of the combustion chamber is provided with suitable apertures 8 for the ingress of air.
, above its communication with the flue 6,
branches intoa substantially circularcham- 9 through which the chain with its T splints is directedfiwhereby not only are the traveling splints directly subjected to the heat radiating from the top plate, but also to-the hot gases and products of combustion flowing from the heater.
. The chamber 9 is comprised within a shallow casing 10, the contour of which is such that it branches upwardly from the rear ward end of the heating chamber 2, curves forwardly and upwardly over the latter, then back'and downto a terminal horizontal branch 11, the chamber 9 thus constituting, in effect, a looped continuation of the chamber 2, which interrupts the horizontal path of the chain and insures a prolonged travel of the latter without requiring increased floor space for the match machine. The innor side walls of the chamber, including its inlet and outlet portions, are equipped with flanged wheels 10 which support and guide the chain in its travel.
The chamber 9 is provided ,at its outlet portion with a branch or extension 12 constituting an air trunk which leads to a suitable exhaust fan (not shown) whereby the exterior air will be drawn into and through the chamber 2 and therein heated and the highly heated air and gases will be drawn into and through the loop chamber in a mannet to act with efiicient drying effect upon and throughout the mass of splints during their progress through said chambers, the moisture and vapors as rapidly as they are produced being continuously exhausted with the air andgases flowing to the fan.
By the construction and operation above described the wet impregnated splints as they pass through the chamber 2 and enter v the loop chamber 9 aresubjected to an exceedingly high temperature, so as to promote rapid evaporation of the solvent from the splints, and then as theyprogress through the latter chamber the partially dried splints are subjected to a decreasing temperature sufficient to accomplish the complete drying of the splints as they approach and emerge from the exit end of the loop chamber. By
1 our invention we are enabled to accomplish the efficient drying of the wet impregnatedsplints in a very short time,one minute, more or less,thus permitting the impregnatingand drying operations to be attained in a continuous match machine without materially increasing the length of the machine or retarding the regular speed of the earr1er chain during its travel through the match making. path.
In the modification of ourv invention illustrated in Figs.,5 and 6, the chamber 9 is constructed within a casing 10 which is supported above the rearward end of the heater,
such chamber being, in the main, comprised between .the inner walls of the casing and a 'large drum 13 which is concentrically arranged within the casing. This drunris preferably constituted by a wheel which 1s mounted to rotate within the casing, said wheel having spaced peripheral flanges 14 upon which the lateral edges of the chain are supported'so that the splints on the chain will point toward the center of the wheel. The wheel is mounted on shaft 15 which is journaled in .suitablydisposed bearings adjacent the side walls of the casing, which shaft may, if desired, be equipped with any suitable driving connections, such, for example, as the sprocket gearing illustrated.
The lower part of the chamber 9 merges with the two converging branch flues 1G, l7 one of which leads from the heater flue 2 and the other to the horizontal branch 11. Suitably located guide wheels 18 are arranged in or adjacent the respective branch .flues 16, 17-; whereby the chain in its travel is directed through the flue 16 to the drum 12, and thence about such drum within the chamber 9; thence to and about the wheel 18in the flue 17. Thus the horizontal path of the chain is interrupted by an extended upward loop which merges with such path at two adjacent points similarly to the first described construction. a
The wheels 18 are ordinary flanged wheels between the flanges of which] the back of the chain is guided and supported with the splints extending into the proximate flues. The peripheries of these wheels 18 constitute the outer walls of the branch flues.
It is to be understood that our invention is not limited to the specific form and details of construction herein selected to illustrate the invention.
We claim 1. In splint drying means for match machines having splint carrier chains, an upwardly-extending loop-like chambered structure having inlet and outlet portions in near relation to each other, means for supportin and guiding the carrier chain within said structure, and means for heating the chamber of said structure.
2. In splint drying means for match machines having splint carrier chains, a substantially circular chambered structure having adjacent inlet and outlet portions, and a heater connected with the inlet portion.
'3. In splint drying means for match machines having splint carricr chains, a sub stantially circular chambered structure having adjacent inlet and outlet portions, and a heater including a combustion chamber and a flue in communication with the said inlet portion.
4. In splint drying means for match machines having splint carrier chains, a substantially circular chambered structure having adjacent inlet and outlet portions, a maintaining an air current through said heater connected with the inlet portion, and chamber.
a chamber directly above and longitudinally Signed at Barberton, in the county of of the heater leading to said inlet portion. Summit and State of Ohio this fifteenth day 5 5. In splint drying means for match ma- .of June A. D. 1912.
chines having carrler chains, a substantially FREDERICK VAN DYKE CRUSEB circular chambered structurehaving adja- WILLIAM GREEN. cent inlet and outlet portions, chain guide Witnesses: 1
Wheels within said structure, a heater eon V. A. JOHNSTON,
10 neeted with the inlet portion, and means for E. O. JACOBS.
US70508912A 1912-06-21 1912-06-21 Splint-drying mechanism for match-machines. Expired - Lifetime US1044146A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US70508912A US1044146A (en) 1912-06-21 1912-06-21 Splint-drying mechanism for match-machines.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70508912A US1044146A (en) 1912-06-21 1912-06-21 Splint-drying mechanism for match-machines.

Publications (1)

Publication Number Publication Date
US1044146A true US1044146A (en) 1912-11-12

Family

ID=3112420

Family Applications (1)

Application Number Title Priority Date Filing Date
US70508912A Expired - Lifetime US1044146A (en) 1912-06-21 1912-06-21 Splint-drying mechanism for match-machines.

Country Status (1)

Country Link
US (1) US1044146A (en)

Similar Documents

Publication Publication Date Title
US1701223A (en) Furnace and method of treating bodies therein
US1774161A (en) Combined oven and carrier for the treatment of bottles
US1700994A (en) Method and apparatus for drying barrels
US1862548A (en) Method of and tunnel kiln for the treatment of ceramic ware
US2128697A (en) Drying apparatus
US1488953A (en) Drier
US2582462A (en) Process for atmospheric control
US2430191A (en) Atmospheric control means
US1070020A (en) Splint-drying means for match-machines.
US2128698A (en) Drying apparatus
US1531780A (en) Rotary drying apparatus
US1044343A (en) Splint-drying means for match-machines.
US701822A (en) Heater and drier.
US1354210A (en) Japanning-oven
US1445011A (en) Macaroni drier
US951858A (en) Yarn-dressing machine.
US1007565A (en) Drier for clayware.
US1513597A (en) Drier
US246723A (en) Fruit-drier
US1746644A (en) Sinuous conveyer
US1221129A (en) Drying apparatus.
US1127416A (en) Splint-drying means for match-machines.
US1917924A (en) Ceramic ware treating method and apparatus
US1455540A (en) Drying oven for printed metal sheets
US405220A (en) Peter mcarthur