US73636A - notes - Google Patents

Description

mtmtrh gisten stent @fitta IMPROVEMENT IN TIN-WARE SEAMING-MACHINE.

dlgs stimule manu tu in tigen @Patat tant mit mating pui .ut tige 5min.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, H IJ. Novus, of Ashtabula, in the county of Ashtabula, and State of Ohio, have invented a new and improved Single-Scanning Machine for making an improved seamen the bottoms of tinware articles; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, in which- Figure 1 is a front elevation of my said machine,

Figure 2 an end elevation, and

Figure 3 a plan view of the same.

Figures 4, 5, and 6, detailed portions, represented on an enlarged scale.

Figures 7 and 8, diagrams illustrating the working principle of said details; and

Figures 9 and 1G, partial forms of the body and bottom of a fruit-can before and after seaming.

The letters of reference marked thereon refer to similar parts in all the figures.

This invention has for its object an improved mode of closing' the seams of the bottoms of tin-ware articles, and is particularly applicable to fruit-cans, and other avare about which some degree of certainty is necessary to know that the seam is perfectly air-tight. The condition of the seam made by this machine is such that the faces of the turned edges ofthe bottom and body-are in perfect contact all around, so much so that the article is, under ordinary circumstances, water and oil-proof without soldering. In any case, whether the article is designed to be water, oil, or air-proof, there is great saving of solder, from the fact that the joining is so perfect that there are no holes left in the seam for it to run through in the operation of soldering; and from the peculiar mode of turning the seam, as will be explained, the sharp angle or corner of the bottom is left unbroken in every instance. This defect is very liable to occur in seaming with the machines now in use, and therefore requiring an additional application of solder.

The closing of the seam is effected expeditiously, and, with ordinary attention in soldering, will leave no doubt as `to its being air-tight. In other methods of closing the seam, the workman has to depend on chance for this feature, or else bestow an extra amount of attention on his work, which, in the rapid handling of hundreds of the same article, (as fruit and preservecans,) is apt to prove irksome and create negligence.

My improved mode of closing thezseam is due mainly to the particular construction of the rotating pressurehead, hereinafter described, and. to its peculiar action on the turned edge of the bottom, so that a perfect contact ofthe turned edges of the body and bottom ofthe ware is thereby secured, and all danger of cracking the plate at the sharp angle of the bottom is entirely avoided.

The general form and construction of the whole machine is given in figs. I, 2, and 3, a detailed description of which is not deemed necessary. Those parts only will be described that are essential to the accomplishment of the improvement under consideration. i

A, fig. 5, is a rotating scanning-head, having its periphery constructed with faces a and the former rounding, and the latter flat, the face b presenting an acute angle to a portion of the face a, substantially as shown in the figure. The said rotating seaming-head is fixed to a short revolving shaft, C, iig. 1, which has its bearing in a slotted box, C,f1g. 3. B, g. 4, is a rotating pressure-head. The edges of this are provided with faces c and d, both faces being dat, and stand to each other at an obtuse angle, as seen, the point of the angle being slightly rounded off. Said head is placedon the forward end of the vibrating arm D, ig. I, so as to rotate in an inclined direction, as shown. E, iig. G, is an adjustable rotary-gauge pressure-head, placed on a fixed shaft, E', on the support E. Said head is constructed substantially as shown in the iig. 6. The faces f and g are formed as therein delineated, j' being flat, and g convex or rounding.- Pressure is given to it by means of the spring F.

The relative position of the said-described rotating heads is readily seen in iigsfl, A2, and 3; and I have been thus minute in thc description and delineation of the forms of the faces on the peripheries of the di ferent rotating hea-ds, as they are absolutelynecessary in perfecting the seam on my said improved plan. I will now explain the manner of operating my said machine.

In the first place, the edges of the bottom and body'of the article are turned in the usual manner, the

former at a rightangle, and the latter flaring or obtuse, as shown in tig. t). The bottom 1s then sprung on on the body, and' placed on the vibrating arm D, iig. 1, of the machine, in the position seen by the dotted lines in iig. 2, and resting on the seeming-head A. The arm D is then depressed by applying the foot to the tread attached t0 the rod J, depending from the bent or return portion thereof, shown in the dotted lines ot' iig. 1. This brings the inclined pnessure-lierad in contact with the inside ofthe article to be seemed. Itwill be observed that in depressing the said head, itspoint e, iig. 7, (which is whereithe pressure eommences,) strikes the turned edge of the bottom atj away-from the sharp cornet` k, as seen in the tig. 7. Motion is then given, by turning the hand-crank, to the seaminghead A, which is communieatedtovthe two others, B and E, and the turned edges before spoken of pressed together in the direction from j tol, g.10. After a suieient number of turns the article is seamed, and it is then removed from the machine.

As the pressure-head B, under-this peculiar arrangement, does'not touch the point of the angle spoken of, it will be seen that the seam can therefore be subjected to any number of revolutions, so that the faces of the said turned edges can, be brought inthe closest possible contact without injury to the o'orner of the seam. With the old method of seeming, every tinsmith knows he cannot go beyondone, or Yone anda half revolution without liability of cracking the plate at the said. corner. The adjustable-gauge pressure-head E is design-'ed to hold the article to be seamed in such a way that` it will, whilst being rotated, tend to keep it, by means of the spring F, inclined in the direction of the dotted lines h z', Eg. 8, for the.purposeiof crowding or pressing the bottom tight against the body just preceding the act of-elosing the seam.` The support E, tig. 2, Y

which sustains the said head E, cnn be moved in or out by loosening the bolt G, so as to adjust the said head E to the diameter ofthe article to be seemed. The machine .is compact and portable, the bodyr H being supported on short feet I I I I,.by which it can `be secured to the work-bench.

I am aware that rotating heads or burrs, having various configurations onjtheir peripheries, are in 'use in machines employed by tin-smiths for a variety of purposes, some of which are used forvseaming the bottoms of cans; pails, pans, and other tinswnre' articles. Such rotating heads or burrs, in themselves, therefore, I do not lay-claim to, nor t'o the seam or joint made or produced by any of4 them. My invention is confined to the new and improved faces given to the peripheries of rotating heads, for the purpose of producing a new and improved seam possessing the peculiar features herein set forth.

What I claim to have secured to me by Letters Patent is- 1. The adjustable rotating-gauge pressure-head E withA the spring F and-support E, constructed and operating substantially as specified. i

2. The inclined rotating pressure-head B, when constructed substantially as shown, and operating on the seam of the ware in the manner stated;

3. The rotating seaming-head A, and slotted .bearing C', constructed and operating as described, in combination with the said pressure-head B, and adjustable-gauge pressure-head E, as and for the purpose specified.

H. J. NOYES.

Witnesses:

,.. F. SINGLE,

FRANKLIN Rooms.

Images