US3803663A - Brush having adjustable hardness - Google Patents

Brush having adjustable hardness Download PDF

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Publication number
US3803663A
US3803663A US00226596A US22659672A US3803663A US 3803663 A US3803663 A US 3803663A US 00226596 A US00226596 A US 00226596A US 22659672 A US22659672 A US 22659672A US 3803663 A US3803663 A US 3803663A
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US
United States
Prior art keywords
bristle
adjusting wheel
plate
brush
brush according
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
US00226596A
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English (en)
Inventor
G Weihrauch
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.)
Coronet Werke GmbH
Original Assignee
Coronet Werke GmbH
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
Priority claimed from DE19712107900 external-priority patent/DE2107900C3/de
Application filed by Coronet Werke GmbH filed Critical Coronet Werke GmbH
Application granted granted Critical
Publication of US3803663A publication Critical patent/US3803663A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B17/00—Accessories for brushes
    • A46B17/06—Devices for cleaning brushes after use

Definitions

  • ABSTRACT Brush having adjustable bristle hardness includes a bristle plate having a multiplicity of bristle brushes extending from one side thereof; a perforated plate located on the one side of the bristle plate and formed with a multiplicity of perforations through which the bristle brushes, respectively, extend; a cover'member located on the other side of the bristle plate; an adjusting wheel disposed between the bristle plate andthe cover member; and threaded connecting.
  • a typical magnetic core memory is comprised of a stack of toroidal core planes.
  • the cores are arranged in rows and columns.
  • Each core is oriented at 45 with respect to the rows and columns to facilitate threading the cores with conductors along the rows and columns and as well as long diagonal paths if desired.
  • each plane consists of a matrix of toroidal cores arranged in rows and columns. All cores in a given row are threaded by a common conductor to provide a single turn winding through each core. Similarly all cores in a given column are threaded by a common conductor.
  • the two sets of conductors are referred to as the X and Y drive windings.
  • the X and Y drive windings which cross at the selected core are each driven with a current pulse of half the amplitude necessary to set the core to the one state. All of the other cores wired by the energized X and Y drive windings are disturbed, but not set to the one state since each is subjected to a magnitomotive force of only half the value necessary to set it to the one state.
  • the X and Y drive windings which cross at the selected core are each driven with a current pulse of half the amplituderegu ired to change the state of the selected core to that opposite the binary-1 state.
  • a fourth winding (I) passing through all of the cores in the plane in a direction parallel to the X or the Y winding is used to selectivelyinhibitthe storage of a binary 1 in a core of a selected plane.
  • the practice has been to arrange the cores into the desired array pattern by placing a handful of cores (typically to mils in diameter) on a plate in a tray.
  • the plate has slots in the desired pattern so that as the tray is vibrated, the cores fall into the slots.
  • the slots are narrow, but almost as deep as the core diameter.
  • the slots may be 18 mils deep so that when a core falls into a slot, it stands on end and protrudes sufficiently for a sheet of flexible material with an adhesive film to be used to remove the array of cores from the plate. Once a core has fallen into every slot in the tray, any excess cores are removed and the adhesive sheet is pressed against all of the cores.
  • the desired core array pattern is left adhesively affixed to the sheet with each core standing on end.
  • the array is then transferred to a substrate coated with a suitable adhesive, such as RTV, a silicone rubber compound produced by the General Electric Company, or a lac quer. That is done by placing the adhesive sheet on the substrate with the cores pressed against the adhesive'on the substrate. Then the adhesive plate is peeled off. Any cores which do not stay "on the substrate must be replaced and aligned by hand, a difficult task.
  • the desired windings through the cores are then provided. Core memory planes thus individually formed are placed on supporting printed-circuit boards, or the like, through which connections are madeto the core windings. The completed memory plane boards are then stacked to provide a magnetic core memory of the desired size.
  • a magnetic plate is sometimes used instead of an adhesive sheet to lift the array of cores from the slots in the vibrating-tray plate.
  • the array is then transferred to a substrate as before.
  • An advantage of this technique is that cores are less apt to fail to adhere to the substrate, but a disadvantage is that if one core tilts too much, an unbalanced field is produced which will cause it to tilt further until it falls against an adjacent core. That further disturbs this field and quite often an entire row of cores will fall like a row of dominoes. For this reason, magnetic plates are not often used as. a transfer vehicle. I
  • An object of this invention is to provide a slotted plate which may be used on a standard vacuumvibrator for arranging coresin a desired array'pattern, and thereafter used as a substrate for the array while threading cores with desired windings.
  • Another object of this invention is to provide an improved structure for a plane in a magnetic core memory using a slotted plate to support the cores, and to provide a method of fabricating such a plate.
  • a slotted plate is fabricated out of a sheet of plastic or other nonmagnetic material.
  • the sheet is masked using photo resist techniquesand then chemically etched to produce the desired pattern of slots.
  • the slot pattern of the mask is virtually identical with a plan view of the desired core array. Only thesize of the slots in width and length deviates from the thickness and outside diameter of the cores, and the deviation is preferably that of smaller dimensions.
  • This chemical etching produces slots with walls which are invariably tapered to permit capture of toroidal cores on a vacuum vibrator, but not allow the cores to pass through the slots.
  • the resist is removed from the plate.
  • FIG. 1 is an exploded elevational view, partly in section, of the brush having adjustable hardness, constructed in accordance with the invention.
  • FIG. '2 is a bottom plan view of the cover member of FIG. 1'. i v
  • the brush constructed in accordance with theinvention which has four main parts including a cover member-l, a bristle plate 2, a perforated plate 3 and an adjusting wheel 4 that are sandwiched together.
  • the perforated plate 3 is provided with four guide pins 6 guidingly extending through openings 18 formed in the bristle plate 2and into bored recesses formed in the cover member 1.
  • the adjusting wheel 4 By turning the adjusting wheel 4, the perforated plate 3 is raised or lowered, as viewed in FIG. 1, so that a desired length s of the bristles '7 can be adjusted to.
  • the raising or lowering of the perforated plate 3 is achieved by means of a slide projection 15 extending radially'inwardly within a hollow shaft 14 secured to the adjusting wheel 4,-the slide projection 15 engaging in the thread-groove 17 formed on the threaded pin 16 which is substantially centrally secured to the perforated plate 3.
  • a depression 20 is formed in the cover member 1 having a larger diameter than the width of the brush handle part at the top of the cover member I so thatga recess is formed onboth lateral sides of the cover member 1 through which the adjusting wheel 4 protrudesi
  • the recess 5 formed in the cover'member 1 becomes even larger if an elongated indentation 21 L is provided in the cover member 1.
  • This indentation 21 is registrable with a corresponding indentation 21 formed in the bristle plate 2, forming together a groove which ensures a bettermanipulation and gripping of the brush.
  • a recess 13 is formed in the-cover member 1 wherein there is fitted a pin 12 formed at the upper surface of the adjusting wheel 4.
  • Locking of the perforated plate 3 in a desired position is achieved by a knurl or small teeth 8 and 9 which are located, respectively, at the underside of the adjusting wheel 4 and at a raised annular area formed on the upper side ofthe bristle plate 2.
  • respective mutually engageable limit pins 10 and 11 are provided at the underside of the adjusting wheel 4 and at the upper side of the bristle plate 2.
  • Brush having adjustable bristle hardness comprising a bristle plate having a multiplicity of bristle brushes extending from one side thereof; a perforated plate located on said one side of said bristle plate and formed with a multiplicity of perforations through which said bristle brushes, respectively, extend; a cover member located on the other side of said bristle plate; an adjusting wheel disposed between said bristle plate and said cover member and extending diametrically in a plane substantially perpendicular to said bristle brushes; and threaded connecting means extending between said perforated plate and said adjusting wheel and cooperable with the latter for adjustably spacing said perforated plate and said bristle plate at varying distances from one another.
  • said threaded connecting means comprises a threaded pin secured substantially centrally to said perforated plate and extending through a substantially central opening formed in said bristle plate, and a hollow shaft secured to said adjusting wheel and formed with a radially inwardly extending slide projection, said threaded pin being received in said hollow shaft, said slide projection being slidingly received in the thread formed on said threaded pin, and said adjusting wheel being tumable so as to transmit an adjusting force through said slide projection to said threaded pin.
  • Brush according to claim 1 including mutually engaging serrations formed on said adjusting wheel and said bristle plate.
  • Brush according to claim 1 includes guide pins secured to said perforated plate and guidingly extending through corresponding openings formed in said bristle plateand into corresponding recesses formed in said cover member.
  • Brush according to claim 9 including mutually engageable limit pins located respectively on said bristle plate and said adjusting wheel for limiting rotation of said adjusting wheel.
  • BRUSH HAVING ADJUSTABLE HARDNESS Abstract of the Disclosure Brush having adjustable bristle hardness includes a bristle plate having a multiplicity of bristle brushes extending from one side thereof; a perforated plate located on the one side of the bristle plate and formed with a multiplicity of perforations through which the bristle brushes, respectively, extend; a cover member located on the other side of the bristle plate; and adjusting wheel disposed between the bristle plate and the cover member;
  • the invention relates to brush having adjustable bristle hardness and, more particularly, of such a brush having a brush body, a bristle plate, a perforated plate and a cover, the perforated plate being adjustable with respect to the bristle plate.
  • Such a brush can be used to advantage wherever a change from hard to soft bristles is desired during the use thereof, especially cloth brushes, massage brushes,
  • a further object of the invention is to provide such a brush which affords easy adjustment of the effective bristle length
  • brush having adjustable bristle hardness comprising a bristle plate having a multiplicity of bristle brushes extending from one side thereof; a perforated plate located on the one side of the bristle plate and formed with a multiplicity of perforations through which the bristle brushes, respectively, extend; a bristle plate having a multiplicity of bristle brushes extending from one side thereof; a perforated plate located on the one side of the bristle plate and formed with a multiplicity of perforations through which the bristle brushes, respectively, extend; a
  • an adjusting wheel disposed between the bristle plate and the cover member; and threaded connecting means extending between the perforated plate and the adjusting wheel and cooperable with the latter for adjustably spacing the perforated plate and the bristle plate at varying distances from one another.
  • the threaded connecting means comprises a threaded pin secured substantially centrally to the perforated plate and extending through a substantially central opening formed in the bristle plate, and a hollow shaft secured to the adjusting wheel and formed with a radially inwardly extending slide projection, the threaded pin being received in the hollow shaft, the slide projection of the latter being slidingly received in the thread formed on the pin, the
  • adjusting wheel is conveniently adjustable with the fingers of the hand grasping the brush, without impairing the customary manipulation of the brush.
  • the adjusting wheel is received in a depression formed in the cover member and has a diameter that vis greater than the width-of the brush so that, at opposite sides of the cover member, part of the adjusting wheel is exposed.
  • the adjusting wheel is, furthermore, preferably knurled at the periphery thereof.
  • the adjusting wheel is advantageously supported by a pin located at a side thereof opposite the FORM PO-105O (Hi-G9) USCOMM'DC 60376-P69 U.S GOVERNMENY PRINTING OFFICE: 9 930 UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3 a 803 a 663 D d April 6 1974 P lnventofls) Georg weihrauch age 8 It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:
  • the cover member has a handle portion at the side thereof facing away and oposite lateral surfaces of the cover member and the bristle plate are formed with respective recesses in the region of the handle so as to afford good gripping of the handle as well as effective operation of the adjusting wheel, without requiring the latter to have a diameter exceeding the width of the brush.
  • the adjusting wheel is provided with means for locking the perforated plate, comprising serrations or knurling, respectively, located at the side of the adjusting wheel facing the bristle plate, and engaging with corresponding serrations or knurling on the opposing side of FORM PO-IOSQ (IO-69) USCOMM-DC 60376-5 69 US GOVERNMENY PRINTING OFFICE- 869-930 UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3 a 803 D d April 16 a 9 74 Inventor s Georg weihrauch Page 9 It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:
  • the threaded connection means are preferably formed with a pitch or lead by which one revolution of the adjusting wheel corresponds to the maximum adjustable spacing between the perforated plate and the bristle plate.

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  • Brushes (AREA)
US00226596A 1971-02-18 1972-02-15 Brush having adjustable hardness Expired - Lifetime US3803663A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712107900 DE2107900C3 (de) 1971-02-18 Härteverstellbare Bürste

Publications (1)

Publication Number Publication Date
US3803663A true US3803663A (en) 1974-04-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00226596A Expired - Lifetime US3803663A (en) 1971-02-18 1972-02-15 Brush having adjustable hardness

Country Status (4)

Country Link
US (1) US3803663A (enExample)
FR (1) FR2125965A5 (enExample)
GB (1) GB1335639A (enExample)
IT (1) IT947631B (enExample)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5142726A (en) * 1991-04-03 1992-09-01 Mann Robert F Adjustable bristle length toothbrush
US5224763A (en) * 1991-12-30 1993-07-06 The Procter & Gamble Company Method of fastening bristle tufts to bristle carrier
US6093093A (en) * 1996-11-14 2000-07-25 Rhodua, Inc. Apparatus and method for cleaning poultry
US6374448B2 (en) * 1998-10-13 2002-04-23 M+C Schiffer Gmbh Toothbrush
US7213293B1 (en) 2003-01-06 2007-05-08 Steven Schraga Bristle orientation assembly for a toothbrush
EP1782712A1 (en) 2005-11-04 2007-05-09 Rayen S.L. Adjustable broom
USD913702S1 (en) 2019-09-16 2021-03-23 Scrub Daddy, Inc. Adjustable strength cleaning stick

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2348358A (en) 1999-03-30 2000-10-04 Romano Foti Brush e.g. toothbrush : bristle adjustment
GB2454706A (en) * 2007-11-16 2009-05-20 Cheng-Lang Lin Pet brush with adjustable bristle length

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2168235A (en) * 1938-08-18 1939-08-01 Oshman Benjamin Combined brush and comb
US2660183A (en) * 1952-01-23 1953-11-24 Edouard Gohner Combination brush and comb
US2963724A (en) * 1958-02-05 1960-12-13 Davis Gervase Peveril Shaving compound applicator
US3612705A (en) * 1969-09-03 1971-10-12 Gillette Co Dispensing container
US3678529A (en) * 1970-07-06 1972-07-25 John A Woods Adjustable brush

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2168235A (en) * 1938-08-18 1939-08-01 Oshman Benjamin Combined brush and comb
US2660183A (en) * 1952-01-23 1953-11-24 Edouard Gohner Combination brush and comb
US2963724A (en) * 1958-02-05 1960-12-13 Davis Gervase Peveril Shaving compound applicator
US3612705A (en) * 1969-09-03 1971-10-12 Gillette Co Dispensing container
US3678529A (en) * 1970-07-06 1972-07-25 John A Woods Adjustable brush

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5142726A (en) * 1991-04-03 1992-09-01 Mann Robert F Adjustable bristle length toothbrush
US5224763A (en) * 1991-12-30 1993-07-06 The Procter & Gamble Company Method of fastening bristle tufts to bristle carrier
US6093093A (en) * 1996-11-14 2000-07-25 Rhodua, Inc. Apparatus and method for cleaning poultry
US6374448B2 (en) * 1998-10-13 2002-04-23 M+C Schiffer Gmbh Toothbrush
US7213293B1 (en) 2003-01-06 2007-05-08 Steven Schraga Bristle orientation assembly for a toothbrush
US7578022B1 (en) 2003-01-06 2009-08-25 Steven Schraga Bristle orientation assembly for a toothbrush
EP1782712A1 (en) 2005-11-04 2007-05-09 Rayen S.L. Adjustable broom
USD913702S1 (en) 2019-09-16 2021-03-23 Scrub Daddy, Inc. Adjustable strength cleaning stick

Also Published As

Publication number Publication date
GB1335639A (en) 1973-10-31
IT947631B (it) 1973-05-30
FR2125965A5 (enExample) 1972-09-29
DE2107900A1 (de) 1972-08-31
DE2107900B2 (de) 1977-05-05

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