For more info on press-and-blow equipment stop by the Glassmaking & Glassmakers web site. These machines first started use while in the mid-1890s as semi-automatic devices (requiring the hand feeding of glass) with whole automation attained during the mid to late 1910s with the addition of gob feeders.
The following is an inventory of manufacturing based diagnostic features - such as the approximated courting ranges - that illustrate these variances and assist with canning jar dating:
So, what do these bits of information insert up to? Although the makers mark of S. G. CO. could conceivably stand with the names of various glass providers (most from the eastern U. S.), presented the believed age from the bottle (1920s or 1930s) and The placement on the diary person (south central Oregon) the initials almost undoubtedly point out generation via the Southern Glass Business (L. a., CA.) which was in small business from 1918 to about 1930 and was often known as a milk bottle producer (Toulouse 1971; Lockhart et al. 2009b). Figuring out the maker narrows the manufacturing time down a bit more. On the other hand, the figures over the rim of the complete are rim date codes - a bottle monitoring system used by West Coastline glassmakers with the mid-1920s to early 1930s - indicating this bottle was manufactured in February ("two") of 1925 ("5").
For additional photographs of various labeled foods bottles & canning jars click on the subsequent link to check out the pertinent area from the Labeled Bottles webpage.
The tall, narrow bottle pictured to the right represents a quite common olive bottle type that appears to have originated inside the incredibly early 1900s - or probably late 1890s - and was well known by a minimum of the early 1930s. It had been referred to by bottle makers given that the "Big apple Fashion Olive," "Chicago Cylinder Olive," or even more generically as "Footed Cylinder Olive" and came in several measurements (as quite a few as fourteen measurements!) from about 3 oz. to about 28 oz. (Illinois Glass Co. 1906; Kearns-Gorsuch 1916). The footed olive design is typified by remaining tall and slender (four+ moments taller than the diameter), using a slight nevertheless visibly flaring heel, and a definite constriction ridge or shoulder for the subtle changeover from your body to your neck; see picture to your still left.
Horizontal complete seam: This seam was shaped the place the neck ring mold (which also contained the urgent plunger) plus the 1-section parison mould came with each other. The inner percentage of the neck ring mould - that meshed Using the higher Component of the parison mildew - was 1-piece on press-and-blow milk bottle machines as was the parison mildew itself. (The hot, partially shaped [pressed] parison could be ejected from a parison mildew with the ejection valve and moved to your blow mould by mechanical tongs. As a result, that mold didn't should be two-part.) The only real seam induced with the neck ring/parison mildew intricate was on the horizontal interface between the neck ring mildew and the top from the parison mildew, i.
The reverse side in the Millville jars are embossed WHITALL'S PATENT / JUNE eighteen, 1861; click on Millville jar reverse watch. It had been at the time assumed that the actual patent date was November four, 1862 (by T. G. Otterson) and that 1861 was claimed given that the Millville origination in order to seem to be an older, a lot more founded jar/closure when compared to the competing jars from John Moore & Co., an identical closure which was patented in December 1861 (Toulouse 1969a). However, patent data do in fact go clearly show that John M.
One particular other specifically prevalent cylindrical salad dressing bottle were All those utilized by the E. R. DURKEE & CO. These will be covered in long term updates to this site (and after the creator acquires some examples As an example the information).
These production linked diagnostic options suggest a late mouth-blown manufacture of between about 1900 and 1915, however no info on the company itself is offered to examine that estimate towards. Click base watch to see this sort of which exhibits an embossed mildew selection (742) of no meaningful utility now. American glass makers also referred to jars formed such as this as "English pickle" bottles (Flaccus late 1890s; Illinois Glass Co. 1903).
Other visuals of ketchup bottles can be obtained by clicking on the next links. This assists display a bit of the variety of condition located in these bottles:
This design and style to start with appears to have appeared to be a late mouth-blown product While device-created examples are much more usually encountered and likely first occurred all over 1905. This extensive mouth fashion is a type most conveniently tailored to The brand new semi-automated equipment which were getting to be progressively prevalent during the early 1900s (Illinois Glass Co. 1903, 1906). The footed olive seems to possess continued into at the very least the early 1930s, although seem to be unheard of following that time as other more straight, uninterrupted sided (with no shoulder constriction ridge) variations became more popular (Fairmount Glass ca. 1930; Lucas County Bottle Co. ca. 1940s). The pictured case in point is device-manufactured and it has a slight "straw" tint indicating that selenium and/or arsenic was used since the glass decolorizer.
(Be aware: Canning jars have been also normally made by push-and-blow devices in the course of the initial 50 % with the 20th century. These had been, however, diverse equipment which did make a valve/ejection mark on The bottom, but didn't ordinarily bring about the disappearing side mold seams nor the horizontal end seam found on milk bottles. This was as a consequence of The reality that each the parison and neck-ring molds ended up multi-element molds.)
Vertically ribbed: Tall, relatively slim sauce bottles with different kinds of vertical ribs, ridging or fluting were being a very common conformation from as early as the late 1840s or early 1850s very well to the early 20th century (Switzer 1974; Zumwalt 1980). Mouth-blown vertically ribbed sauce bottles were being generally made from aqua glass, while colorless or light amethyst (manganese dioxide decolorized glass) examples are reasonably common and deeper greens and blues at times noticed.
Offered this simple fact, sauces and condiment bottles are extremely generally linked to historic sites dating from the entire time span lined by this Web page, i.e., nineteenth by mid-twentieth hundreds of years. Most likely the most acquainted instance and One of the more usually located "foods" bottles may be the ubiquitous Lea & Perrins Worcestershire Sauce - an item that remains fairly well-known now (and talked over later on).