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Copy of label, Blackor Co., Southern California, 1929

Copy of label, Blackor Co., Southern California, 1929 [image]

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Title	Copy of label, Blackor Co., Southern California, 1929
Description	Photograph of copy of label, Blackor Co., Southern California, 1929. "Subject: copy of label; Agency: McCarty; Client: Blackor Co.; Number of Prints: 24, 36, 2, 1; Size: contact, contact size on 8x10; Finish: gl[ossy]; Mounted: linen 8" hinge on 1; Year: 1929; Job: 4-1-6" -- on envelope.
Subject (lcsh)	Advertising
Subject (Corporate Name)	Blackor Company; American Patent Protection Corporation
Subject (Personal Name)	McCarty
Geographic Subject (State)	CA
Geographic Subject (Country)	USA
Geographic Subject (Region)	California, Southern
Coverage date	1929
Photographer	Dick Whittington Studio
Publisher (of the Digital Version)	University of Southern California. Libraries
Date created	1929
Type	image text
Format	B/W Nitrate; 5x7 in.
Format (aacr2)	1 photograph: b&w, negative, 5x7 in. in envelope
Format (aat)	photographs negatives
Other format (imt)	image/tiff
Box	Box no. 6
Folder	Archive bag no. 3
Identifying Number	Job 1929-004-001-006
Legacy Record ID	whit-neh-10047
Part of collection	"Dick" Whittington Photography Collection, 1924-1987
Rights	For uses other than private, contact USC Libraries Special Collections at the e-mail given
Access Conditions	Contact: Special Collections, Doheny Memorial Library, USC Libraries, Los Angeles, CA 90089-0189; specol.edu; phone (213) 821-2366; fax (213) 740-2343
Repository Name	USC Libraries Special Collections
Repository Address	Doheny Memorial Library, Los Angeles, CA 90089-0189
Repository Email	specol@usc.edu
Filename	DW-1929-04-01-06

Title	Copy of label, Blackor Co., Southern California, 1929 [image]
Description	Photograph of copy of label, Blackor Co., Southern California, 1929. "Blackor, The Super Hard-facing Product (Patented), Supreme, Abrasive-resistant material for Oil & Mining Industries, Agricultural Implements, Etc., Directions For Using: A layer of Blackor about 1/4 inch thick is placed on the surface to be hardfaced, which has been cleaned and prepared as for ordinary welding. A ground surface is preferable but not absolutely necessary. A copper plate is used alongside edges. Blackor is melted with the electric arc: a fine-pointed carbon pencil, with from 150 to 250 amperes at 50 to 80 volts should be used for ordinary work. As soon as the Blackor has been melted, remove arc and add another layer of Blackor. Use only enough heat to melt: mixing with the underlying metal should be avoided as much as possible. Three or more layers of Blackor should be used in order that the outer layers should pick up less of base metal. Where very hard metal is desired the number of layers should be increased. Where softer metal is satisfactory fewer layers are necessary. It is to be remembered that even the softest Blackor (that is very few thin layers) is harder than and will wear better than so-called hard-facing metals, while Blackor put on following directions for maximum hardiness compares with the hardest metal inserts and has the great advantage of not 'cutting between.', Patent 1613942, Protected by American Patent Protection Corporation, Other Patents Pending, Net Weight [ilg] Pounds, Blackor Company, 215 West 7th St. Los Angeles, Calif." -- label.
Subject (lcsh)	Advertising
Filename	DW-1929-04-01-06~01.TIF

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Copy of label, Blackor Co., Southern California, 1929

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