US2929042A - Connection box with slidable plugboard - Google Patents

Connection box with slidable plugboard Download PDF

Info

Publication number
US2929042A
US2929042A US583499A US58349956A US2929042A US 2929042 A US2929042 A US 2929042A US 583499 A US583499 A US 583499A US 58349956 A US58349956 A US 58349956A US 2929042 A US2929042 A US 2929042A
Authority
US
United States
Prior art keywords
plugboard
connection box
chamber
slidable
balls
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
US583499A
Other languages
English (en)
Inventor
Guttridge Eric John
Skinner David William
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.)
International Computers and Tabulators Ltd
Original Assignee
International Computers and Tabulators Ltd
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 International Computers and Tabulators Ltd filed Critical International Computers and Tabulators Ltd
Application granted granted Critical
Publication of US2929042A publication Critical patent/US2929042A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/04—Methods or arrangements for sensing record carriers, e.g. for reading patterns by mechanical means, e.g. by pins operating electric contacts

Definitions

  • a connection element hereinafter referred to as a plugboard
  • Fig. 1 is a top plan, with parts broken away, of a connection box according to the invention
  • Fig. 2 is a side elevation, partly in section on line II--II, Fig. 1,
  • Fig. 3 is a view taken on the line lIIIII, Fig. 1,
  • Fig. i is a section of a part of the connection box and illustrates the manner in which a plugboard is inserted into the connection box
  • Fig. 5 is a broken view of the obverse side of a plugboard
  • Fig. 6 is a broken view of the reverse side of the plugboard
  • Fig. 7 is a section on line VII-VII, Fig. 5,
  • Fig. 8 is an exploded view illustrating the use of semi-tubular rivets with the plugboard
  • Fig. 9 is a diagrammatic pictorial view illustrating an alternative form for the leading edge of a plugboard
  • Fig. 10 is a section of a part of the connection box and illustrates a manner of connection to both sides of a plugboard
  • Fig. 11 is a section of a part of a connection box and illustrates an alternative form of connection to a plugboard.
  • tion box comprises a box-like structure open at one end and having its two opposed wider sides 1, 2, secured in fixed spaced relation to provide a chamber 3 into which a fiat plugboard 4 can he slid and located by the edges 5, 6 and 7, Figs. 5 and 6, thereof relative to resilient contacts to be described below and supported by the side 2 of the connection box.
  • connection box The sides of the connection box are made of electrically insulating material and the chamber 3 is defined not only by the inner surfaces of the wider upper and lower connection box sides 1 and 2, as viewed in Figs. 2, 3 and 4, but by spacer elements 8 clamped therebetween to be engaged respectively by the side edges 5 and Got the plugboard when the latter is pushed into the chamber 3.
  • -A stop member 9, Figs. 1 and 2 is provided to be
  • the resilient contacts each comprise an electrically conductive ball 10 located in an aperture extending through the side 2 of the connection box. The diameter of the ball is such that it cannot fully enter the chamber 3 and is therefore at all times partially located in the aperture formed in the side 2.
  • An electrically conductive spring 11 is housed in the aperture and tends to force the ball into the chamber 3 and also eifects electrical connection between the ball and a contact tag 12 towhich an electrical lead can be soldered or otherwise secured and by which input impulses are applied to the connection box.
  • the resilient contacts are arranged in three columns A, B and C, Fig. 1, extending lengthwise of the chamber 3, and a further column D, Fig. 1, which extends transversely of the length of the chamber 3 to be adjacent to the stop 9.
  • connection box can be other than that illustrated in the drawings but will in all instances be such as to ensure that there are sutficient resilient contacts to effect the desired co-operation with the difierent forms of alternative plugboards which it is desired to insert into the chamber 3 from time to time.
  • the plugboard illustrated in Figs. 5 and 6 is one form of plugboard which can be used with the arrangement of resilient contacts shown in Figs. 1 and 3, and the plugboard 4 consists of a fiat piece of electrically insulated material to the opposite sides of which there are applied what are known in the art as printed wiring.
  • the printed wiring comprises a pattern of electrically conductive strips 13a, 13b, 130, there being one set of strips 13a, 13b, 13c, for each column of a record card.
  • the plugboard is for use with a record card containing columns and in these figures are illustrated the" elements shown as rivets 16, Figs.
  • the rivets are of the kind known as semi-tubular rivets, the hollow ends of which can be readily opened out after insertion of the rivet through the plugboard thereby to efiect electrical connection between a strip 13a, 13b, as ap- .epeaeta basementte, and the electrically conductive line appropriated thereto.
  • semi-tubular rivets 16 facilitates the removal of misplaced rivets, or of rivets to change or modify the plugboard connectionsand the, recess. left after riveting serves-for centering a tool for. knocking out the rivet. Further, since a rivet isretained in-position only by an overturned rim, instead ofby a solid head, there is little likelihoodof damage to the plugboard-when arivet is knocked out.
  • an electrically conductive strip 13a canbe connected, as .ap-
  • Theelectrically' conductivestrips are also provided withenlargedelectrically conductive areas 18 :which'are engagedby the balls 10 when the plugboard isinserted into the connection box, and'towh'ich pass the input impulsesto the plugboard.
  • The;plugboard isofrectangular cross-section andif theleading end of the board, that is the end'7 'first inserted into the chamber 3, is left square, that is substantiallyat right-angles to the length of the board, it
  • the leading endof the plugboardris provided with a chamfer or bevel '20, Figs.
  • the charnfer 20 also ensures thatzthe plugboard is, not inserted into the chamber in.:an,;upsid.e-down condition thereof, that is acondition in .whichthe balls lti cannot contactthe areas 18,. and stripsla .togl4k, Fig. 5, when the plugboard is in positionv in .th e .chamber because, if the plugboard should beinserted; into .the chamber in the upside-down condi: tiongthereof, the chamfer or bevel 20 will bec reversedfrom theposition illustrated in Fig; 4 and the'leading edge 7 of1the plugboard will engage the balls but'will not-effectv depression thereof.
  • connection box If this double bevel extends along the wholeof; the leading edge of the-plugboard, the. balls willbe depressed by the plugboardiif it .is inserted into the-chamber the right-way-up or upside-down. -T.o ensure :that the plugboard with a double bevel can only be inserted into the chamber 3 when-it; is correctly oriented,.
  • the double'bevel 29a, Fig. 9, extendsalong onlyithat part of the leading edge 7 which is to be passed through areas in the chamber in which resilient contacts are .located, and a part of the leading edge 7, on one or both sides of the double bevel 24M has only a'single bevel portion .20..
  • the singlebevel portionlt co-operateswith Q resilient members,similar to balls 19 and springs 11, whichareprovided solely for the purpose of ensuring orientation of the plugboard, and it will be impossible to insert the plugboard into the chamber in the upside-down condition thereof because the single bevel portion 20 will engagewith the resilient-members but will not effect depression thereof. Only when the plugboard is correctly orie'nted'will the single bevel portion 21 depress the. resilient members cooperating therewith, so that the plugboard can only be inserted into the chamber when it is correctly oriented.
  • connection box As has been described above the inputs to the connection box are applied through the contact tags 12 and the outputs from the box are made through the column D of balls 19 and contact tags 21, Fig. 2, appropriated thereto, the balls 10 of column D'being arranged to make electrical contact, as appropriate, with the conductive strips 14a to 14k.
  • the resilient contacts in'the connection box-have beendescribed as balls, but it will be understood that, if desired, the resilient contacts may be other than balls, for example as shown in Fig. 11, thecontactsmay consist of mushroornlike elements 19a provided'only with a semi-circular portion to make engagement with the areas 18 of'theplugboard.
  • a connection box for effecting electrical connections comprising a housing forming a slot opening through one endof said housing, said housing havinga plurality of bores therein in communication with said slot, electrically conductive contact elements in said bores,-terminals closing the outer ends of said bores and projecting from said housing, electricallyconductive springs in'said bores and compressed between said contact elements and said terminals' and'biasing said contact elements to enter said slot with theinner ends thereof abutting the wall of said slot opposite thewall from which the elements project, the inner ends of said elements having camlike surfaces thereon facing the'entrance to the slot, the surfaces of said elements immediately'above the slot wall from which the elements project and facing the entrance to the slot being disposed substantially perpendicular to saidslot, a plugboard slidable into said slot, said plugboard having circuit completing means thereon for completing preselected circuits between certain of said terminals and arranged so'that the circuits are'completed only when the board is inserted with a'given surface facing a
  • said circuit completing means including contacts -on said plugboard connected in a predetermined arrangement for'engaging certain contact elements when the plugboard is inplace for electrically connecting certain terminals, said plugboard having at least a portion of one transverse corner of the leading edge which is aligned with at least some of said contact elements beveled tobe complementaryto said 'camlike surfaces, so that when the plugboard is inserted into the slot in correct position the beveled-edge cooperates with the cam surfaces of the contact elements to cam the contact elements'into the bores'to permit passage of the plugboard, but if inserted V incorrectly the leading edge Will abut the sides of saidcontact elements'and prevent entry of said plugboard.

Landscapes

  • Engineering & Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Mounting Of Printed Circuit Boards And The Like (AREA)
US583499A 1955-06-03 1956-05-08 Connection box with slidable plugboard Expired - Lifetime US2929042A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB16049/55A GB796345A (en) 1955-06-03 1955-06-03 Improvements in or relating to electrical connection boxes

Publications (1)

Publication Number Publication Date
US2929042A true US2929042A (en) 1960-03-15

Family

ID=10070212

Family Applications (1)

Application Number Title Priority Date Filing Date
US583499A Expired - Lifetime US2929042A (en) 1955-06-03 1956-05-08 Connection box with slidable plugboard

Country Status (4)

Country Link
US (1) US2929042A (fr)
DE (1) DE1093592B (fr)
FR (1) FR1155877A (fr)
GB (1) GB796345A (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3008113A (en) * 1958-07-30 1961-11-07 Ibm Electrical interconnecting and mounting device for printed-circuit boards
US3033914A (en) * 1960-04-20 1962-05-08 Gen Electric Printed circuit boards
US3160455A (en) * 1961-05-16 1964-12-08 Burroughs Corp Printed circuit boards and connectors therefor
US3174006A (en) * 1962-04-30 1965-03-16 Frederick L Haake Missile umbilical ignition switch
US3200297A (en) * 1962-05-18 1965-08-10 Randac Systems Inc Control unit having removable and interchangeable programming inserts
US3364453A (en) * 1966-04-06 1968-01-16 Symplicon Inc Stage-lighting control apparatus
US3793957A (en) * 1972-01-18 1974-02-26 Us Navy Gun launched, digital, variable time fuze
US4029375A (en) * 1976-06-14 1977-06-14 Electronic Engineering Company Of California Miniature electrical connector
US5053199A (en) * 1989-02-21 1991-10-01 Boehringer Mannheim Corporation Electronically readable information carrier
US5952632A (en) * 1996-06-28 1999-09-14 Intel Corporation CPU set-up key for controlling multiple circuits

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1393822A (en) * 1917-05-14 1921-10-18 John B Parker Electric switch
US1496817A (en) * 1918-12-28 1924-06-10 Western Electric Co Electrical connecter
GB365171A (en) * 1930-10-17 1932-01-18 Walter William Wall Improvements in and connected with electric switch or coupling devices
US2547866A (en) * 1947-07-12 1951-04-03 George M Holley Electrical terminal
US2701346A (en) * 1953-11-05 1955-02-01 Hughes Aircraft Co Connector for circuit cards
US2746680A (en) * 1952-07-01 1956-05-22 Maul Michael Record controlled machine with cross connecting board
US2779929A (en) * 1953-11-02 1957-01-29 Ibm Self-locking plug connector

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2613287A (en) * 1948-10-27 1952-10-07 Ibm Cross connecting board

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1393822A (en) * 1917-05-14 1921-10-18 John B Parker Electric switch
US1496817A (en) * 1918-12-28 1924-06-10 Western Electric Co Electrical connecter
GB365171A (en) * 1930-10-17 1932-01-18 Walter William Wall Improvements in and connected with electric switch or coupling devices
US2547866A (en) * 1947-07-12 1951-04-03 George M Holley Electrical terminal
US2746680A (en) * 1952-07-01 1956-05-22 Maul Michael Record controlled machine with cross connecting board
US2779929A (en) * 1953-11-02 1957-01-29 Ibm Self-locking plug connector
US2701346A (en) * 1953-11-05 1955-02-01 Hughes Aircraft Co Connector for circuit cards

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3008113A (en) * 1958-07-30 1961-11-07 Ibm Electrical interconnecting and mounting device for printed-circuit boards
US3033914A (en) * 1960-04-20 1962-05-08 Gen Electric Printed circuit boards
US3160455A (en) * 1961-05-16 1964-12-08 Burroughs Corp Printed circuit boards and connectors therefor
US3174006A (en) * 1962-04-30 1965-03-16 Frederick L Haake Missile umbilical ignition switch
US3200297A (en) * 1962-05-18 1965-08-10 Randac Systems Inc Control unit having removable and interchangeable programming inserts
US3364453A (en) * 1966-04-06 1968-01-16 Symplicon Inc Stage-lighting control apparatus
US3793957A (en) * 1972-01-18 1974-02-26 Us Navy Gun launched, digital, variable time fuze
US4029375A (en) * 1976-06-14 1977-06-14 Electronic Engineering Company Of California Miniature electrical connector
US5053199A (en) * 1989-02-21 1991-10-01 Boehringer Mannheim Corporation Electronically readable information carrier
US5952632A (en) * 1996-06-28 1999-09-14 Intel Corporation CPU set-up key for controlling multiple circuits

Also Published As

Publication number Publication date
FR1155877A (fr) 1958-05-09
DE1093592B (de) 1960-11-24
GB796345A (en) 1958-06-11

Similar Documents

Publication Publication Date Title
US2929042A (en) Connection box with slidable plugboard
US3056030A (en) Light responsive photo-optical keyboard
US4084874A (en) Low insertion force connector
GB1147037A (en) Connector assembly
GB866984A (en) Electrical wiring assembly
US4116518A (en) Clip for paralleling packaged integrated circuit chips
GB1283148A (en) Transmission line systems
GB1247146A (en) Printed circuit mounting structure
US3151863A (en) Control for card feed
GB1117912A (en) Panel provided with a number of socket contacts which are arranged in a definite pattern
GB1259330A (fr)
US2973091A (en) Holster carton
GB1230138A (fr)
US3256510A (en) Plural socket contact
US3175153A (en) Terminal contacting fixture utilizing torsional deflectable contacting elements
US3239216A (en) Feeding apparatus
US3553436A (en) Data collection station and static card reader therefor
GB1165546A (en) Improvements in or relating to Electronic Assemblies.
GB1001569A (en) Improvements in and relating to a printed circuit board connector
GB831139A (en) Improvements in or relating to devices for sensing punched cards, tapes or other members
US2749839A (en) Record controlled printing machine
GB1018490A (en) Apparatus for sensing information punched in a recording medium
GB867927A (en) Lug inserter
JPS63211700A (ja) プリント基板の位置決め装置
GB884047A (en) Apparatus for setting up corner lock cartons