George H. Ziegler

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1. Overview

George Henry Ziegler [middle name from US patent 691,226)] [dates unknown] Outside of the patent record, I know nothing at all about Ziegler.

Designed the space and quad casting machines used first by MacKellar, Smiths and Jordan. Later improved the Barth Type Caster for American Type Founders Co.

2. Patents

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US Patent 447,598 (1891)

Ziegler, George H. US patent 447,598, "Bearing." Filed 1890-12-30 as application serial number 376,237. Issued 1891-03-03 to George H. Ziegler. Assigned to MacKellar, Smiths & Jordan.

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US Patent 523,255 (1894)

US patent 523,255, "Type-Casting Machine." Filed 1892-06-25 as application serial number 437,946. Issued 1894-07-17 to George H. Ziegler. Assigned to MacKellar, Smiths and Jordan.

A type casting machine designed primarily for the casting of spaces and quads.

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US Patent 523,256 (1894)

US patent 523,256, "Type-Casting Machine." Filed 1893-01-09 as application serial number 457,856. Issued 1894-07-17 to George H. Ziegler. Assigned to American Type Founders Co. Note: The application serial no. 437,946 referenced in this patent was issued as patent 523,255.

Improvements in the space and quad casting machine of Ziegler's US patent 523,255.

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US Patent 523,301 (1894)

US patent 523,301, "Type-Casting Machine." Filed 1893-05-29 as application serial number 475,937. Issued 1894-07-17 to George H. Ziegler. Assigned to American Type Founders Co.

Mold improvements in the space and quad casting machine of Ziegler's US patent 523,255.

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US Patent 553,575 (1896)

US patent 553,575, "Type-Casting Machine." Filed 1891-05-14 as application serial number 392,761. Issued 1896-01-28 to George H. Ziegler. Assigned to MacKellar, Smiths and Jordan.

A pivotal type caster matrix holder.

It is interesting that in this patent Ziegler records the term "vibrating" (rather than "pivotal") as the common term of art for the Bruce/pivotal type caster.

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US Patent 660,237 (1900)

US patent 660,237, "Type-Casting Machine." Filed 1896-01-18 as application serial number 576,036. Issued 1900-10-23 to George H. Ziegler. Assigned to American Type Founders Co.

Improvements to the Barth. Specifically references the Barth & Lietze US patent 376,765 (1888).

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US Patent 678,831 (1901)

US patent 678,831, "Type-Casting Machine." Filed 1900-02-17 as application serial number 5,587. Issued 1901-07-16 to George H. Ziegler. Assigned to American Type Founders Co.

Improvements to the Barth. Specifically references the Barth & Lietze US patent 376,765 (1888), application s/n 576,036 (which was issued as Ziegler's US patent 660,237 (1900). and application s/n 63,588 (which was issued as Ziegler's US patent 691,226 (1902).

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image link-to-us-0685083-1901-10-22-ziegler-atf-type-finishing-machine-sf0.jpg

US Patent 685,083 (1901)

US patent 685,083, "Type-Finishing Machine." Filed 1901-06-13 as application serial number 64,435. Issued 1901-10-22 to George H. Ziegler. Assigned to American Type Founders Co.

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image link-to-us-0691226-1902-01-14-ziegler-atf-matrix-carrier-for-barth-type-caster-sf0.jpg

US Patent 691,226 (1902)

US patent 691,226, "Matrix-Carrier for Type-Casting Machines." Filed 1901-06-07 as application serial number 63,588. Issued 1902-01-14 to George Henry Ziegler. Assigned to American Type Founders Co.

This patent references three earlier or pending patents. The first of these is US 376,765 (1888-01-24), which is the Barth and Lietze patent for the Barth type caster. Here it is referred to as one of Ziegler's patents - and error that can no doubt be ascribed to carelessness on the part of ATF's patent attorneys. The second patent referred to is in fact one of Ziegler's, US 660,237 (1900) for improvements on the Barth. Finally, it references Ziegler's then-pending patent application s/n 5,587 (1900), which was issued as US 678,831.


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