US1766512A - Method and device for compensating electricity on hides - Google Patents

Method and device for compensating electricity on hides Download PDF

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Publication number
US1766512A
US1766512A US287867A US28786728A US1766512A US 1766512 A US1766512 A US 1766512A US 287867 A US287867 A US 287867A US 28786728 A US28786728 A US 28786728A US 1766512 A US1766512 A US 1766512A
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US
United States
Prior art keywords
chamber
leather
brushing
dust
hide
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
US287867A
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English (en)
Inventor
Hausmann Fritz
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.)
Firm Lederwerke Becker & Co
Original Assignee
Firm Lederwerke Becker & Co
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 Firm Lederwerke Becker & Co filed Critical Firm Lederwerke Becker & Co
Application granted granted Critical
Publication of US1766512A publication Critical patent/US1766512A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
    • H05F3/00—Carrying-off electrostatic charges

Definitions

  • This invention relates to a method and means for lpreparing hides and skins for dyeing or a l' e operation in which a liquidis applied to them, and particularly to the re- 5 moval of dirt and dust from the surfaces t be treated.
  • Adjacent the exit opening of the brushing chamber provision is made of electrical contact brushes which engage the opposite faces of the leather, and Wh10h are in electrical contact with one another, and with the ground.
  • the positive and negative charges on the opposite faces of the leather are thus caused to neutralize one another, and, in so far as there may be any failure of neutralization, the su lus charge is conducted to the ground so 1: at the leather emerges from the brushing chamber completely freed of static electricity, both faces of the leather being at ground potential.
  • the dye which may consist of lac or other chemical with which the leather is to be treated, is', sprayed on the leather immediately upon its emergence from the brush ing chamber.
  • a shield between the sprayer and such lamellae is made of.
  • FIG. 1 is a fragmentary, sectional, side elevation of apparatus embodying features of the present invention.
  • Figure 2 is a fragmentary, detail elevation of a modified arrangement of the conductive brushes or lamellae.
  • a brushing chamber (1) there arethree rotary brushes (2) arranged so as to en a e the upper and lower surfaces of a Inge spread over frames and gliding known tracks. (3).
  • stationary-brushes (4) of the ordinary type are provided.
  • a conduit (5) supplies fresh air through branches to the upper and the lower portions of the brushin chamber and furnishes fresh air to the chamber.
  • a steam pipe (7) is fitted with a nozzle piece (8 through which steam is conducted to the brushing chamber along with the fresh air.
  • the lamellae (13 and 14) may also be arran ed in layers beside one another (Fig. 2) so t at the discharge of electricity will surely be effected completely.
  • the lamellae 13 and 14) are electncally connected with each other and also mutually discharged to ground through the conductor (17).
  • the 'de runs from the brushing chamber on the track (3) to the spraying room over the tank (18).
  • the lac sprayer (19) squirting hide from above, would graduallycoat the lamellae (13) and partly also the slips (14) with a lac layer having an insulating action, by which the discharge might be impaired.
  • a protective shield (20) is provided, that ma be moved with the hand'or automatically by means of a lever or drawing contrivance (21).
  • Automatic regulation of the movement of the said shield (20) can be obtained by arranging the end of the lever (21) to be moved by an electro-magnet so as to allow the hide to pass through when being conducted from the brushing chamber into the in'ection room, after which it will again place ltself automatically against the lameland 14) whilethe hide is being treated in the two chambers.
  • the operation of the device is as follows:
  • the frames covered with the hides are conveyed, by means of a drawing roller contrivance or the like, to the brushi chamber(]1l) through the brushes (4).
  • the rotary brushes 2% are in engagement with, and operate u n the upper and lower surfaces of the hide.
  • the electricit already existing and particularly p uced throu h the brushes (2 and 4) is absorbed in the rushing chamber (1) by the ionized air saturated with water vapour and leaving at 6, and is carried off by the ventilator throu h the suction conduits (9 and 10).
  • the rames on the track (3) are advanced step by step, the surface of the hide being sprinkled with lac by the lac sprayer (19 in an interval between successive steps.
  • he protective piece (20) is opened manually or automatically while the frame is moving from "the brushing chamber to the injection room, and the lamellae and slips (13 and 14) will slide on the hide, and wi l discharge the electricity still carried by the hide surfaces through the round circuit 17)..
  • the protective piece (20) will close again automatically, and the same process will be repeated.
  • the ionization of the atmos here or otherwise rendering it conductive,t is may be produced by an other means beside steam, as, for exam 'e, through ultra-violet radiation of quartz amps.
  • the method of treating hides which comprises brushing the hides in a closed chamber containing a conductive atmosphere, drawing off the removed dust, conducting away the static electric charge on the hide produced by brushing, and immediately thereafter applying a treating material to the hide.
  • the method of preparing a h'ide for dyeing or like treatment, whlch comprises brushing the hide in an enclosed chamber, rendering the atmosphere in said chamber conductive and conveying away the dust removed from the hide.
  • the method of freeing a hide from dust which comprises brushing the dust from the hide, discharging the static electric charges thus produced on the dust particles and on the hide to prevent re-attraction of the dust to the hide, and conveying the dust away.
  • a chamber means in the chamber for brushing the leather, means for sucking away the dust-laden air from the chamber, and means for introducing steam and fresh air into the chamber to maintain a conductive atmosphere therein.
  • a chamber means in the chamber for brushing the leather, means for introducing steam into the chamber to facilitate the removal of the dust, and meansfor drawing the steamy dust-laden air out of the chamber.
  • means for freeing the leat er of dust comprising brushes, means for discharging from the leather the static electric charges formed by the brushing means, conductive brushes contacting the faces of the leather. for dischar 'ng static electricity from such faces, an means for depositing treating material on the surface of the leather.
  • a chamber means including brushes forfreeing the leather of dust while I it is in the chamber, conductive brushes outside the chamber engaging the leather for eliminating static electricity from the faces thereof, means for spraying the leather, and shielding means interposed between the spraying means and the conductive brushes for preventing the deposit of the spraying material on the conductive brushes.
  • a chamber means including brushes for freeing the leather of dust while it is in the chamber, conductive brushes outside the chamber engaging the leather for eliminating static electricity from the faces thereof, means for spraying the leather, and shielding means interposed between the spraying means and the conductive brushes for preventing the deposit of the spraying material on the conductive brushes, said shielding means standing normally in an effective shielding position in which the passage of a hide is obstructed, and being operable to a non-obstructing position to permit the passa e of a hide from the chamber into position or spraying.
  • a chamber means for feeding a hide through the chamber, means in the chamber for brushin the hide, means for introducing steam an fresh air into the chamber, means for drawing of the steamy dust-laden air from the chamber, and conductive brushes pivotally mounted just beyond the exit opening of the chamber and adapted by their own weight to maintain sliding engagement with the hide.

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  • Elimination Of Static Electricity (AREA)
US287867A 1927-08-25 1928-06-23 Method and device for compensating electricity on hides Expired - Lifetime US1766512A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1766512X 1927-08-25
DE655562X 1927-08-25

Publications (1)

Publication Number Publication Date
US1766512A true US1766512A (en) 1930-06-24

Family

ID=27664320

Family Applications (1)

Application Number Title Priority Date Filing Date
US287867A Expired - Lifetime US1766512A (en) 1927-08-25 1928-06-23 Method and device for compensating electricity on hides

Country Status (2)

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US (1) US1766512A (fr)
FR (1) FR655562A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3077625A (en) * 1959-02-19 1963-02-19 Eric S Lindau Film cleaner
US3086145A (en) * 1959-06-02 1963-04-16 British Cellophane Ltd Antistatic treatment of flexible tubular films
US3204271A (en) * 1963-06-10 1965-09-07 Stanley L Kingston Garment brushing machine
US3761071A (en) * 1971-12-08 1973-09-25 Super Laundry Machinery Co Inc Laundry folding machine with static electricity dissipating means

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3077625A (en) * 1959-02-19 1963-02-19 Eric S Lindau Film cleaner
US3086145A (en) * 1959-06-02 1963-04-16 British Cellophane Ltd Antistatic treatment of flexible tubular films
US3204271A (en) * 1963-06-10 1965-09-07 Stanley L Kingston Garment brushing machine
US3761071A (en) * 1971-12-08 1973-09-25 Super Laundry Machinery Co Inc Laundry folding machine with static electricity dissipating means

Also Published As

Publication number Publication date
FR655562A (fr) 1929-04-20

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