GB189913708A - Improvements in Pantograph Engraving Machines. - Google Patents

Improvements in Pantograph Engraving Machines.

Info

Publication number
GB189913708A
GB189913708A GB189913708DA GB189913708A GB 189913708 A GB189913708 A GB 189913708A GB 189913708D A GB189913708D A GB 189913708DA GB 189913708 A GB189913708 A GB 189913708A
Authority
GB
United Kingdom
Prior art keywords
tracer
levers
spindle
dispensed
lever
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
Inventor
William Henry Lock
Mark Barr
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
Application granted granted Critical
Publication of GB189913708A publication Critical patent/GB189913708A/en
Expired legal-status Critical Current

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Abstract

13,708. Lock, W. H., and Barr, M. July 3. Engraving. - Relates to pantograph engraving- machines. The tracer 10 and tool spindle 33 are carried by ball-and-socket joints 35, 36 on a double telescopic rod 37 swinging about a universal joint 38. The tracer and spindle pass through ball joints at the intersection of the lever 21 with the parallel levers 14, 15, horizontal movement being permitted by slots and slides as shown. The pivots 22, 16, 17 of the levers are in a straight line, and the parallelism of the levers 14, 15 is maintained by a link 18. The tracer and spindle also pass through the ball joints of an exactly-similar linkage 21<a>, 14<a>, 15<a> below. The lever 37 may be dispensed with, and the part of the standard 11 to which the linkages are pivoted be arranged to turn on horizontal pivots, the lower linkage turning on a horizontal axis mounted on this part. When two-dimensional work only is required, the apparatus may be simplified, the lower linkage being dispensed with.
GB189913708D 1899-07-03 1899-07-03 Improvements in Pantograph Engraving Machines. Expired GB189913708A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB189913708T 1899-07-03

Publications (1)

Publication Number Publication Date
GB189913708A true GB189913708A (en) 1900-05-26

Family

ID=32358606

Family Applications (1)

Application Number Title Priority Date Filing Date
GB189913708D Expired GB189913708A (en) 1899-07-03 1899-07-03 Improvements in Pantograph Engraving Machines.

Country Status (1)

Country Link
GB (1) GB189913708A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103433919A (en) * 2013-08-09 2013-12-11 北京航空航天大学 Two-degree-of-freedom scaling mechanism based on four-bar mechanism similarity

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103433919A (en) * 2013-08-09 2013-12-11 北京航空航天大学 Two-degree-of-freedom scaling mechanism based on four-bar mechanism similarity
CN103433919B (en) * 2013-08-09 2016-03-09 北京航空航天大学 A kind of two degrees of freedom scaling device similar based on four-bar mechanism

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