US777582A - Blackboard-eraser cleaner. - Google Patents

Blackboard-eraser cleaner. Download PDF

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Publication number
US777582A
US777582A US19187204A US1904191872A US777582A US 777582 A US777582 A US 777582A US 19187204 A US19187204 A US 19187204A US 1904191872 A US1904191872 A US 1904191872A US 777582 A US777582 A US 777582A
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Prior art keywords
blackboard
eraser
chamber
reticulated
eraser cleaner
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Expired - Lifetime
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US19187204A
Inventor
David S Ausherman
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David S Ausherman
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Publication date
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Priority to US19187204A priority Critical patent/US777582A/en
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Publication of US777582A publication Critical patent/US777582A/en
Anticipated expiration legal-status Critical
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L13/00Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/10Scrubbing; Scouring; Cleaning; Polishing
    • A47L13/50Auxiliary implements
    • A47L13/502Shakers for dust-cloths or mops; Bumpers therefor

Description

PATENTBD DEC. 13, 1904 D. s. AUSHEEMAN.
BLAOKBOARD ERASER CLEANER.
APPLICATION FILED FEB. 3, 1904.
NO MODEL.
lUire *rri'rns Patented December 13, 1904.
BL-ACKBUAHD-ERASER ()Lt'EMWEH.
SPECIFICATION forming part of Letters Patent No. 777,582, dated December 13, 1904. Application filed February 3, 1904. Serial No. 191,872. (No model.)
To all who/rt it YI'I/(I/Z/ concern:
Be it known that 1, DAVID S. AUsrim-mmv, a citizen of the United States, residing at Zion City, in the county of Lake and State of Illinois, have invented a new and useful Blackboard-Eraser Cleaner, of which the following is a specification.
My invention relates to blackboard-craser cleaners, and has for its objects to produce a comparatively simple inexpensive device of this character which will be efficient in operation and one in which the dust from the erasers will be collected during the cleaning operation.
To these ends the invention comprises the novel features of construction and combination of parts more fully hereinafter described.
In the accompanying drawings, Figure l is perspective view illustrating my improved device in operation. Fig. 2 is a detail longitudinal sectional elevation. Fig. 3 is a detail sectional elevation taken at right angles to Fig. 2.
Referring to the drawings, 1 designates a body or support, formed, preferably, from a single piece of board, having at one end a reduced extension or handle 2 and at its other or normally inner end a padded engaging portion 3, recessed for engagement with the ledge 4: of a blackboard, as shown in Fig. 1. The body 1 has formed therein an elongated chamber 5 of suitable dimensions, the side walls of which are composed of wire-gauze or other suitable reticulated material 6, attached to the body 1 and in turn covered by cheese-cloth or other suitable loosely-woven fabric 7, there being formed at the inner end of the body heneath the engaging portion 3 a discharge opening or passage 8, leading from the chamber 5 and normally closed by a removable plug or closure 9.
Hinged or otherwise pivoted to the reduced portion 2 and respectively on opposite sides thereof is a pair of operating members or blocks 10, carrying forward]y-extending engaging deviccs or guides 11, composed, preferably, of wire and each in, form of an elongated U -shaped loop, presenting a pair of spaced parallel rods 12, designed in practice to receive between them and retain the blackboard-erasers l3and having their rear ends attached by staples or otherwise to the blocks 10.
In practice the erascrs to be cleaned are inserted in the devices or guides ll, which, it is to be noted, he parallel and in transverse alinement with the chambe 5. The engaging portion is then seated upon the ledge 4i, and the operator grasps the blocks 10, as indicated in Fig. 1, and manipulates them for swinging the guides 11 back and forth to beat the erasers 13 upon the reticulated sides of the chamber. During this operation the chalk-dust sifts through the said sides and settles in the chamber, where it is accumulated. After the erasers have been suiliciently cleaned they are removed from the guides, and the body has its forward end tilted downward and, if necessary, tapped upon the lioor, thereby causing the accumulatirm of dust to settle in the opening or passage 8 for discharge by removing the closure 9.
From the foregoing it will be seen that I produce a simple ellicient device for cleaning blackboard erasers and for collecting the chalk-dust. in attaining these ends it is to be understood that 1 do not limit myself to the precise details herein set forth, inasmuch as minor changes may be made without departing from the spirit of the invention.
Having thus described the invention, what is claimed is- 1. In a device ol the class described, the
combination with a supporting member having a collooting-chamber provided with reticulated walls, of a pair of eraser-holders pivotally connected respectively with opposite sides of the support to swing toward and from the reticulated walls.
2. .In' a device of the class described, the combination with a S11])1')OI'l3ll1g' member having a collecting-chambcr provided with reticulated walls, of a pair of operating-blocks pivotally connected respectively with opposite sides of the support, and a pair of eraserhold ing guides carried respectively by the blocks and each comprising a pair of parallel spaced I charge opening leading therethrough and members designed to receive the eraser between them.
3. In a device of the class described, the combination with a supporting member having a collecting-chamber provided with a reticulated wall, of a pervious fabric covering said wall, an eraser-holder pivotally connected with the support to swing toward and from IO the reticulated wall, said support having a discommunicating with the chamber, and a closure for said opening.
In testimony that I claim the foregoing as my own 1 have hereto aflixed my signature in 5 the presence of two witnesses.
DAVID S. AUSHERMAN. lVitnesses:
W. E. SoHoLz, HARRY P. BURNINGHAM.
US19187204A 1904-02-03 1904-02-03 Blackboard-eraser cleaner. Expired - Lifetime US777582A (en)

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US19187204A US777582A (en) 1904-02-03 1904-02-03 Blackboard-eraser cleaner.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19187204A US777582A (en) 1904-02-03 1904-02-03 Blackboard-eraser cleaner.

Publications (1)

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US777582A true US777582A (en) 1904-12-13

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US19187204A Expired - Lifetime US777582A (en) 1904-02-03 1904-02-03 Blackboard-eraser cleaner.

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