GB402909A - Improvements relating to pattern card punching machines - Google Patents

Improvements relating to pattern card punching machines

Info

Publication number
GB402909A
GB402909A GB2643432A GB2643432A GB402909A GB 402909 A GB402909 A GB 402909A GB 2643432 A GB2643432 A GB 2643432A GB 2643432 A GB2643432 A GB 2643432A GB 402909 A GB402909 A GB 402909A
Authority
GB
United Kingdom
Prior art keywords
arm
spring
rack
pins
catch
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
Application number
GB2643432A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2643432A priority Critical patent/GB402909A/en
Publication of GB402909A publication Critical patent/GB402909A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10G—REPRESENTATION OF MUSIC; RECORDING MUSIC IN NOTATION FORM; ACCESSORIES FOR MUSIC OR MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR, e.g. SUPPORTS
    • G10G3/00—Recording music in notation form, e.g. recording the mechanical operation of a musical instrument
    • G10G3/02—Recording music in notation form, e.g. recording the mechanical operation of a musical instrument using mechanical means only

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

402,909. Pattern - card - punching machines. DRACUP, C. T., Lane Close Mill, Great Horton, Bradford, Yorkshire. Sept. 23, 1932, No. 26434. [Class 142 (i).] The rack pins B, Fig. 4, of a piano punching machine are detachably mounted in holes in the rack bar A and in a spaced bar A<1> provided with a cover plate A<2>, whereby one or more of the pins may be withdrawn to afford an irregular traverse of the card. The slip catch comprises a catch C adapted to engage between adjacent pins and mounted on a spring arm D controlled by a treadle, and a catch C<1> slidable against the action of a spring c<3> in a bracket c<2> that moves normally with the arm D. The bracket c<2> is pivoted together with a hand lever F on a pivot f<1> carried by the arm D, and is held in normal position against the action of a spring d<2> against a stop f<2>. To remove the rack, the treadle and the handle F are depressed thereby withdrawing both catches C, C<1>.
GB2643432A 1932-09-23 1932-09-23 Improvements relating to pattern card punching machines Expired GB402909A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2643432A GB402909A (en) 1932-09-23 1932-09-23 Improvements relating to pattern card punching machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2643432A GB402909A (en) 1932-09-23 1932-09-23 Improvements relating to pattern card punching machines

Publications (1)

Publication Number Publication Date
GB402909A true GB402909A (en) 1933-12-14

Family

ID=10243553

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2643432A Expired GB402909A (en) 1932-09-23 1932-09-23 Improvements relating to pattern card punching machines

Country Status (1)

Country Link
GB (1) GB402909A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2785751A (en) * 1953-10-09 1957-03-19 Tucker Smith G Card perforating devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2785751A (en) * 1953-10-09 1957-03-19 Tucker Smith G Card perforating devices

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