US3767873A - Control panel with dial setting template - Google Patents

Control panel with dial setting template Download PDF

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Publication number
US3767873A
US3767873A US00284721A US3767873DA US3767873A US 3767873 A US3767873 A US 3767873A US 00284721 A US00284721 A US 00284721A US 3767873D A US3767873D A US 3767873DA US 3767873 A US3767873 A US 3767873A
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US
United States
Prior art keywords
template
control panel
dial
knobs
panel
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
US00284721A
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English (en)
Inventor
H Nesgen
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Individual
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Individual
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Filing date
Publication date
Priority claimed from DE19712144003 external-priority patent/DE2144003C/de
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3767873A publication Critical patent/US3767873A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/12—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using record carriers
    • G05B19/126—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using record carriers using cards, tapes or discs having protuberances

Definitions

  • the present invention relates to control panels and dial setting means, and in particular to machinery control panels with multiple adjustable dials which cooperate with a dial setting template so that the machinery can only be started when a particular dial setting pattern is established on the control panel.
  • a preferred application of the invention is a control panel for web and film processing machinery, such as slicing machines and the like, for example.
  • U.S. Pat. No. 3,045,077 discloses an electronic tube testing apparatus whose test sockets can be covered by means of a test template so that only those sockets are exposed which are required for the testing of the particular tube to which the template belongs.
  • U.S. Pat. No. 2,924,678 teaches a device which serves a similar purpose, but where the template, when placed on the control panel, depresses contact pins, except in those places where apertures are provide in the template.
  • the multiple contacts established by the template make possible the setting of a specific operating program, but they do not permit selective settings of multiple dials on a machinery control panel.
  • German Patent No. 901,089 is disclosed a control panel for another electronic tube testing apparatus which includes the presetting of different adjustment limits of a dial.
  • a template permits the insertion of plugs into the panel at different positions. Depending upon these positions of insertion, different linkages are actuated by the plugs which cooperate with abutment pins in the adjustment path of the dial hand of an adjustable control instrument. The adjustment range of this instrument is thus limited to a value determined by the template.
  • This prior art device has the disadvantage of requiring complicated linkages, especially when many dials are to be preset, and it also requires the additional operation of plug insertion after emplacement 0 within 360.
  • the cooperation between the template of the template It does not nation of specific dial settings.
  • the dial setting template thus fully determines a plurality of dial settings of the control panel.
  • the invention proposes to attain the above objective by a machinery control panel which includes dial setting templates with apertures that match the dial heads of the control panel, the dial heads and the template forming cooperating noses and recesses which permit placement of the template over the dial heads only when the dials are adjusted to a specific setting pattern.
  • An additional feature of the invention suggests a safety switch in the control panel which permits startup of the machinery only when a template is in place on the control panel.
  • the control panel and dial setting template of the invention eliminate any human error in the dial settings, as the template can only be placed on the control panel when all dial heads are adjusted to the settings which are incorporated in the template for a particular machinery run. Any single dial head which is not adjusted to the predetermined setting or setting range makes it impossible to properly position the template on the control panel, and this in turn makes it impossible to start the machinery, because a normally open safety switch is only then closed, when the dial setting template is correctly positioned on the control panel. The safety switch has to be closed before the main switch in the main circuit becomes operative to stop and start the machinery.
  • the dial setting template permits the asetting of the dial heads in any angular position permit the predetermiand the dial heads is a direct one, eliminating the need for additional mechanical elements, with the associated risk of malfunction and adjustment errors.
  • the dial setting template as contemplating by the invention is extremely simple and inexpensive to manufacture.
  • the optimal dial settings as once determined by trail and error for each kind of material and type of processing are thus permanently incorporated in a special dial setting template.
  • the template itself preferably carries the markings identifying the material and the process. If the machinery control panel is to be set by means of such a template, the latter is merely positioned over the dial heads and the dial heads are rotated until they are in alignment with the positions given by the template. When all the dial heads are aligned, the template can be fully lowered into place so as to close the safety switch. Once the dial setting template is thus lowered, it is no longer possible to reset the dials, except where the template has an aperture which specifically permits such an adjustment within a limited range.
  • the machinery control panel and dial setting templates of the invention assure a simple and reliable repetition of earlier established dial settings of any pattern.
  • the invention has the additional advantage of being foolproof, i.e., it positively eliminates the possibility of human error on the part of the operating personnel, once the proper template has been selected, because the machinery can only be started after the dials have been correctly set and the template has been properly positioned over them.
  • FIG. 1 is a plan view of a control panel with a dial setting template embodying the invention.
  • FIG. 2 is a partial elevational cross section along line 11-11 of FIG. 1, including a schematic main circuit.
  • FIGS. 1 and 2 of the drawing illustrate a control panel 1 which carries a plurality of adjustment knobs 2, 3, 4, 5, 6, and 7, each knob head having on its periphery a pointed dial nose 8.
  • the dial heads 2, etc. are rotatably mounted in panel 1.
  • the various control elements which are associated with the dial heads or knobs 2, etc. are not shown in the drawing.
  • Each dial head 2, etc. is surrounded by a scale 9.
  • a safety switch whose plunger 11 normally protrudes from the panel surface and, when depressed, closes contact 12. The latter is normally held open by means of a spring 13 in which case switch plunger 11 is in the position shown by dotted lines in FIG. 2.
  • the main circuit of the machinery which is to be controlled by this control panel is shown schematically in FIG. 2.
  • In includes an electrical power supply 14 which leads to a main switch 15 via the contact 12 of the safety switch.
  • the relays and other control circuits of the electrical controls are not shown in the drawing.
  • a shunt circuit with a shunt switch 15 makes it possible to bypass the safety switch 11, 12 for experimental dial adjustments without dial setting templates, but this shunt switch 15 is so arranged that it can only be operated after insertion of a special key.
  • the dial setting template 17 is preferably made of a transparent material and has a plurality of apertures 18 which match the size and positions of the dial heads 2, etc.
  • These apertures 18 include radial recesses 19, 20, 21, 22, 23 and 24 which match the adjustment noses 8 on the dial heads.
  • These noses 8 are preferably pointed triangular portrusions on the periphery of the dial heads, and the notches 19, etc. are shaped as matching triangles.
  • the recesses 19, 20, 21 and 22 are notches that closely fit the noses 8 of the respective dial heads 2, 3, 4 and 5, thereby accurately determining a particular angular setting of these dials.
  • the recesses 23 and 24, however, are shown to be wider than the adjustment noses 8 of their respective dial heads 6 and 7, these dials being adjustable within a limited range as determined by the annular sector of these recesses 23 and 24.
  • the dial setting template 17 has similar matched bores 25 into which fasteners 26 can be inserted. These fasteners serve to lock the template 17 against the control panel 1. It is of course possible to lock the template against the control panel by means of several other known fastening means. It is also possible to provide a very sensitive spring 13 on the safety switch 11 so that the weight of the template alone will operate the latter and no fasteners are required.
  • the shunt switch 16 remains open.
  • the machinery' is to be set up for a particular material and operation for which a dial setting template is available, that particular template 17 is placed loosely on the control panel 1.
  • the dial heads 2, etc. protrude sufficiently over template 17 to permit adjustment of the dials until their adjustment noses 8 are in line with the template recesses 19, etc. Only when all dial heads are aligned with their template apertures can the template 17 be fully lowered over the dial noses 8 until template 17 and panel 1 rest against one another.
  • the safety switch plunger 11 is depressed and the safety contact 12 in the main circuit is closed; the machinery can be started by closing the main switch 15.
  • the dial setting template 17 is firmly maintained against panel 1 by means of several quick release fasteners 26.
  • the interaction between the dial heads and the apertures of the template need not be restricted to noses on'the former and recesses in the latter, but it would also be possible to use different structural features such as axial grooves in the dial heads and matching protrusions in the template apertures, for example.
  • the templates of the embodiment illustrated in the drawings have the advantage that they can be conveniently prefabricated knobs and adapted to'be placed thereover onto said surface; and I cooperating single notch and single recess means at the peripheries of corresponding knobs and apertures whereby said template may be placed over said knobs and against said panel only when each of saidknobs is rotated to a predetermined orientation wherein corresponding notch and recess means are all in axial alignment.
  • a control panel as defined in claim 7 further comprising:
  • interlocking means are in the form of radially protruding pointed noses on the knobs and of matching radial recesses in the template apertures.
  • interlocking means are in the form of radially protruding noses on the knobs and of angularly oversized radial recesses in certain template apertures, the interlocking means thus permitting a limited readjustment of the predetermined dial setting.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Control Devices (AREA)
  • Numerical Control (AREA)
US00284721A 1971-09-02 1972-08-30 Control panel with dial setting template Expired - Lifetime US3767873A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712144003 DE2144003C (enrdf_load_stackoverflow) 1971-09-02

Publications (1)

Publication Number Publication Date
US3767873A true US3767873A (en) 1973-10-23

Family

ID=5818495

Family Applications (1)

Application Number Title Priority Date Filing Date
US00284721A Expired - Lifetime US3767873A (en) 1971-09-02 1972-08-30 Control panel with dial setting template

Country Status (7)

Country Link
US (1) US3767873A (enrdf_load_stackoverflow)
JP (1) JPS4835355A (enrdf_load_stackoverflow)
BE (1) BE787991A (enrdf_load_stackoverflow)
DE (1) DE2144003B1 (enrdf_load_stackoverflow)
GB (1) GB1338748A (enrdf_load_stackoverflow)
IT (1) IT963991B (enrdf_load_stackoverflow)
NL (1) NL7211929A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4455272A (en) * 1982-03-29 1984-06-19 Standard Oil Company (Indiana) Method of extruding a polystyrene foam using both a physical blowing agent and water
US5110998A (en) * 1990-02-07 1992-05-05 E. I. Du Pont De Nemours And Company High speed insulated conductors

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1357726A (en) * 1919-01-16 1920-11-02 Gen Electric Electric switch
US1561248A (en) * 1922-01-07 1925-11-10 Westinghouse Electric & Mfg Co Switch mechanism
US2028237A (en) * 1934-01-31 1936-01-21 Bell Telephone Labor Inc Locking device
US2667864A (en) * 1949-12-29 1954-02-02 Marx Adolph Safety accessory for gas stoves

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1357726A (en) * 1919-01-16 1920-11-02 Gen Electric Electric switch
US1561248A (en) * 1922-01-07 1925-11-10 Westinghouse Electric & Mfg Co Switch mechanism
US2028237A (en) * 1934-01-31 1936-01-21 Bell Telephone Labor Inc Locking device
US2667864A (en) * 1949-12-29 1954-02-02 Marx Adolph Safety accessory for gas stoves

Also Published As

Publication number Publication date
JPS4835355A (enrdf_load_stackoverflow) 1973-05-24
BE787991A (fr) 1972-12-18
GB1338748A (en) 1973-11-28
NL7211929A (enrdf_load_stackoverflow) 1973-03-06
DE2144003B1 (de) 1972-10-05
IT963991B (it) 1974-01-21

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