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US2641721A - Sanding, scraping, and polishing machine - Google Patents

Sanding, scraping, and polishing machine Download PDF

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Publication number
US2641721A
US2641721A US217696A US21769651A US2641721A US 2641721 A US2641721 A US 2641721A US 217696 A US217696 A US 217696A US 21769651 A US21769651 A US 21769651A US 2641721 A US2641721 A US 2641721A
Authority
US
United States
Prior art keywords
armature
stator
teeth
casing
machine
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
US217696A
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English (en)
Inventor
List Enrique
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.)
ITEM DE RESPONSABILIDAD Ltda Soc
ITEM SOC DE RESPONSABILIDAD LT
Original Assignee
ITEM SOC DE RESPONSABILIDAD LT
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 ITEM SOC DE RESPONSABILIDAD LT filed Critical ITEM SOC DE RESPONSABILIDAD LT
Priority to US217696A priority Critical patent/US2641721A/en
Priority to DEI4336A priority patent/DE887994C/de
Priority to CH298817D priority patent/CH298817A/de
Priority to GB7002/52A priority patent/GB715093A/en
Priority to FR1064710D priority patent/FR1064710A/fr
Priority to ES0202667A priority patent/ES202667A1/es
Application granted granted Critical
Publication of US2641721A publication Critical patent/US2641721A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036—Parts or details of the surface treating tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/02—Floor surfacing or polishing machines
    • A47L11/10—Floor surfacing or polishing machines motor-driven
    • A47L11/12—Floor surfacing or polishing machines motor-driven with reciprocating or oscillating tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4063—Driving means; Transmission means therefor
    • A47L11/4069—Driving or transmission means for the cleaning tools

Definitions

  • the present invention refers to an electricallydriven machine for sanding, grinding, cleaning and polishing.
  • Known machines for cleaning and polishing floors for example consist essentially of an electric rotary motor provided with brushes for thus treating the floors.
  • the electric motor is mounted on a vertical shaft and by means of a mechanical transmission drives several (generally three) circular brushes the spindles of which are, likewise, vertical.
  • small polishing ma chines which employ an electromagnetic oscillating motor the mobile core of which is joined to a metal plate that is applied to the work.
  • Such arrangements have, s far, only been designed as small units, operated by hand.
  • the new machine according to this invention for sanding, grinding, cleaning and polishing is characterized by the provision of an electromagnetic or electrodynamic oscillating motor as driving means for a work plate joined thereto, direct- 1y or through short levers, said motor being installed Within a fiat casing in such a manner that the height thereof is the smallest of its dimensions, the oscillating Work plate covering the greater part or all of the lower face of the armature.
  • the entire assembly is, furthermore, seated on several longitudinal ball bearings.
  • the invention provides several longitudinal ball bearings guiding the armature in the manner indicated.
  • said machine is provided with two electrical mass units, the
  • An improvement on the idea of assuring a lengthwise oscillatory motion through the arrangement of guiding ball bearings consists in placing two bearings on the longitudinal axis and separate bearings at a certain distance at both sides of the longitudinal axis, on the bottom face of the armature. These two latter bearings prevent the armature from rotating on the longitudinal axis.
  • Another way of placing longitudinal ball bearings is to arrange three or more thereof between the armature and the stator, pressing the former elastically, by means of a spring, against the latter.
  • the case of the machine likewise oscillates. These oscillations, although small, bear a certain proportional relation to those of the armature.
  • One particular feature of the invention resides in that the stator and. the core are elastically seated on the case and that a compensating mass or body is associated with said stator, thus enabling the casing to remain quite still.
  • flat springs capable of guiding the core in a lengthwise direction may be p y d.
  • h s sp i s can at the same time function, totally or partially, as operating or work springs.
  • the work plate which is joined to the core of the electromagnet, is covered with any material appropriate for the end in View, such as emery, sandpaper, etc.
  • the plate can similarly be provided with a brush or a file.
  • the plate can be ribbed by any suitable process, such as stamping.
  • a handle provided with a switch, may be fitted to the case. Vibration absorbers can be arranged between the case and said handle; a similar effect can be obtained by providing the handle with rubber foam grips.
  • a further feature of this novel machine is that the front of the case can carry one or two small lights to illuminate the floor over which same is run.
  • the machine may be built to polish floors also underneath furniture, where there is Lamps installed in those lights may operate on a lowvoltage current obtained, in accordance with the invention, from some turnof wire Wound in the iron core of the oscillating motor.
  • Fig. l is a lateral section through CD of Fig. 2.
  • Figure 2 is a plan view of the machine as seen through section AB and, finally, Figure 3 is a front sectional view of the casing and support of the machine.
  • the machine as illustrated comprises essentially an oscillating motor consisting of an iron body I shaped like a shell-type transformer the core of which is open and provides two poles 2 and 3. These poles are equipped with coils 4 and 5, respectively, series-connected and joined to a source furnishing alternating current. Poles 2 and 3 are indented at 2, 3 respectively, being provided, in the embodiment illustrated, with four. teeth each. Core 8 is situated in the aperture between the poles and has similarly 4 teeth 6, arranged as shown in Figure 2 when the coil is not connected to the supply line.
  • bearings l, 8, 9 and iii are provided of one or several balls each of which two, I and 8, are situated on the lengthwise axis and the other two, 9 and It, at a certain distance and at both sides of longitudinal axis CD on the bottom face of the armature.
  • the core at both its ends, is joined to two U-shaped pieces II and [2, formed of metal strip. These pieces communicate the core with two springs 13 and [4, which maintain said core in the neutral position illustrated in Figure 2.
  • stator and the core of the armature have four teeth. It is possible to increase the number of teeth or reduce same to one. teeth diminishes the stroke of the armature and increases the pushing strength, while a reduction in the number of teeth increases the length of the stroke but diminishes the strength.
  • Metal plate 15 is connected to core 6 and in this manner oscillates together with same. :Said plate is provided with means for quickly fastening thereto sundry sanding, grinding, cleaning or polishing tools.
  • Support H) is shaped in such a manner that, on being bent round shaft I9 it occupies a horizontal position without changing the height of the machine, a most advantageous feature, not only for polishing a floor underneath some article of furniture but also for storing the machine without occupying much space.
  • 2! is a low-voltage lamp, illuminating the floor in front of the machine.
  • a machine having a reciprocating motion for polishing, sanding and abrading comprising, a flat shell-like casing having an opening at its lower side, a magnetic stator housed within said casing, means for connecting said stator to the interior of said casing, said stator having three legs formed with longitudi nally aligned openings for an armature, the center leg having a rectangular opening, the opposite sides of said opening having uniformly spaced teeth, coil means on the stator in connection with a source of alternating current, guide means fixed to the inside of the casing, an armature supported and guided by the guide means for longitudinal motion with respect to said stator and having a number of teeth equal to the number of teeth on the one side of the stator opening, the spacing of the armature teeth being uniform and equal to that of the teeth on the stator, two cylindrical compression springs each mounted on the inside of the casing and in opposition to one another, and engaging opposite ends of the armature thereby normally urging said armature to a neutral position
  • a flat shell-like casing having an opening at its lower side, a magnetic stator housed within said casing, means for connectin said stator to the interior of said casing, said stator having three legs formed with longitudinally aligned openings for an armature, the center leg having a rectangular opening, the opposite sides of said opening having uniformly spaced teeth, coil means on the stator in connection with a source of alternating current, guide means fixed to the inside of the casing, an armature supported and guided by the guide means for longitudinal motion with respect to said stator and having a number of teeth equal to the number of teeth on the one side of the stator opening, the spacing of the armature teeth being uniform and equal to that of the teeth on the stator, two cylindrical compression springs each mounted on the inside of the casing and in opposition to one another, and engaging opposite ends of the armature thereby normally urging said armature to a neutral position in which the
  • a machine having a reciprocating motion for polishing, sanding and abrading comprising, a flat shell-like casing having an opening at its lower side, a magnetic stator housed within said casing, means for connecting said stator to the interior of said casing, said stator having three legs formed with longitudinally aligned openings for an armature, the center leg having a rectangular opening, the opposite sides of said opening having uniformly spaced teeth, coil means on the stator in connection with a source of alternating current, guide means fixed to the inside of the casing, an armature supported and guided by the guide means for longitudinal motion with respect to said stator and having a number of teeth equal to the number of teeth on the one side of the stator opening, the spacin of the armature teeth being uniform and equal to that of the teeth on the stator, two cylindrical compression springs each mounted on the inside of the casing and in opposition to one another, and engaging opposite ends of the armature thereby normally urging said armature to a neutral position in
  • a flat shell-like casing having an opening at its lower side, a magnetic stator housed within said casing, means for connecting said stator to the interior of said casing, said stator having three legs formed with longitudinally aligned openings for an armature, the center leg having a rectangular opening, the opposite sides of said opening having uniformly spaced teeth, coil means on the stator in connection with a source of alternating current, guide means fixed to the inside of the casing, an armature supported and guided by the guide means for longitudinal motion with respect to said stator and having a number of teeth equal to the number of teeth on the one side of the stator opening, the spacing of the armature teeth being uniform and equal to that of the teeth on the stator, two cylindrical compression springs each mounted on the inside of the casing and in opposition to one another, and engaging opposite ends of the armature thereby normally urging said armature to a neutral position in which the stator

Landscapes

  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
US217696A 1951-03-27 1951-03-27 Sanding, scraping, and polishing machine Expired - Lifetime US2641721A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US217696A US2641721A (en) 1951-03-27 1951-03-27 Sanding, scraping, and polishing machine
DEI4336A DE887994C (de) 1951-03-27 1951-07-03 Bohner-, Polier- und Reinigungsmaschine
CH298817D CH298817A (de) 1951-03-27 1951-07-30 Bohner-, Polier- und Reinigungsmaschine.
GB7002/52A GB715093A (en) 1951-03-27 1952-03-18 Improvements in sanding, grinding, cleaning, scraping, polishing machines and the like
FR1064710D FR1064710A (fr) 1951-03-27 1952-03-24 Machine à cirer, polir et nettoyer, particulièrement les parquets
ES0202667A ES202667A1 (es) 1951-03-27 1952-03-26 UNA MáQUINA PARA LIJAR, PULIR, LIMPIAR Y LUSTRAR

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US217696A US2641721A (en) 1951-03-27 1951-03-27 Sanding, scraping, and polishing machine

Publications (1)

Publication Number Publication Date
US2641721A true US2641721A (en) 1953-06-09

Family

ID=22812117

Family Applications (1)

Application Number Title Priority Date Filing Date
US217696A Expired - Lifetime US2641721A (en) 1951-03-27 1951-03-27 Sanding, scraping, and polishing machine

Country Status (6)

Country Link
US (1) US2641721A (de)
CH (1) CH298817A (de)
DE (1) DE887994C (de)
ES (1) ES202667A1 (de)
FR (1) FR1064710A (de)
GB (1) GB715093A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2790276A (en) * 1955-08-31 1957-04-30 Weller Electric Corp Vibratory sanding tool
DE1281305B (de) * 1962-01-10 1968-10-24 Phys Alexander Mohrenstein Dr Einrichtung zum schnellen axialen Hin- und Herbewegen der Schleifspindel in ihrer Lagerung

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1031409B (de) * 1954-12-31 1958-06-04 Siemens Ag Schwingankermotor mit gestrecktem Kurzschlusslaeufer und zwei von einem Drehstromnetz gespeisten Spulengruppen im Staender
CN106725082B (zh) * 2016-12-30 2019-08-13 肇庆市小凡人科技有限公司 一种玻璃清洁机器人

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1651793A (en) * 1922-07-26 1927-12-06 Central Electric Tool Company Electric tool
US2122888A (en) * 1934-10-03 1938-07-05 Joseph F Mcleer Electrical drill or hammer
DE666552C (de) * 1931-10-07 1938-10-22 Siemens Schuckertwerke Akt Ges Elektromagnetische Antriebseinrichtung fuer Werkzeuge
GB498041A (en) * 1937-07-03 1939-01-03 Heinrich List Dipl Ing Improvements in or relating to electro-magnetic operating devices for imparting to-and-fro motion
US2276534A (en) * 1940-11-02 1942-03-17 Arthur C Burleigh Abrading machine
US2285361A (en) * 1942-06-02 Electric reciprocating tool
US2324292A (en) * 1941-09-22 1943-07-13 Albert J Dremel Hand sander
US2395537A (en) * 1943-10-04 1946-02-26 Sterling Tool Products Company Rubbing machine
US2554538A (en) * 1948-01-13 1951-05-29 Thomas J Murphy Electric reciprocating motor

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2285361A (en) * 1942-06-02 Electric reciprocating tool
US1651793A (en) * 1922-07-26 1927-12-06 Central Electric Tool Company Electric tool
DE666552C (de) * 1931-10-07 1938-10-22 Siemens Schuckertwerke Akt Ges Elektromagnetische Antriebseinrichtung fuer Werkzeuge
US2122888A (en) * 1934-10-03 1938-07-05 Joseph F Mcleer Electrical drill or hammer
GB498041A (en) * 1937-07-03 1939-01-03 Heinrich List Dipl Ing Improvements in or relating to electro-magnetic operating devices for imparting to-and-fro motion
US2276534A (en) * 1940-11-02 1942-03-17 Arthur C Burleigh Abrading machine
US2324292A (en) * 1941-09-22 1943-07-13 Albert J Dremel Hand sander
US2395537A (en) * 1943-10-04 1946-02-26 Sterling Tool Products Company Rubbing machine
US2554538A (en) * 1948-01-13 1951-05-29 Thomas J Murphy Electric reciprocating motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2790276A (en) * 1955-08-31 1957-04-30 Weller Electric Corp Vibratory sanding tool
DE1281305B (de) * 1962-01-10 1968-10-24 Phys Alexander Mohrenstein Dr Einrichtung zum schnellen axialen Hin- und Herbewegen der Schleifspindel in ihrer Lagerung

Also Published As

Publication number Publication date
DE887994C (de) 1953-08-27
CH298817A (de) 1954-05-31
FR1064710A (fr) 1954-05-17
GB715093A (en) 1954-09-08
ES202667A1 (es) 1952-05-01

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