US883977A - Sash-weight. - Google Patents

Description

NQ. 883,977. I PATENTED APR. 7,1908. P. c. SGHWBDTMAN. sAsH WEIGHT.

APPLICATION FILED 00T.26. 1907.

l. Illllby f A W 1|W/////// Imi FERDINAND C. SCHWEDTMAN, OF ST. LOUIS, MISSOURI.

SASH-WE IGI-IT.

Specification of Letters Patent.

Patented April 7, 1908.

Application filed October 26, 1907. Serial No. 399,351.

To all whom it may concern.'

Be it known that I, FERDINAND C. SCHWEDTMAN, a citizen ofthe United States, residing at St. Louis, Missouri, have invented a certain new and useful Improvement in Sash-Weights, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which i-t appertains to make and use the same, reference being had to the accom anying drawings, forming part of this speci cation, in which- T-his invention relates to a new and useful improvement in sash weights of that class wherein a sheet metal housing is employed to incase the material of which the weight is essentially composed.

My present invention has relation particularly to the manner of employing unit weights of different speciiic gravities, whereby weights ofthe desired weight maybe obtained by using the same length of shell or housing in conjunction with units of different material.

Figure 1 is a vertical sectional view of my improved sash weight; and Fig. 2 is a cross sectional view through the same.

Sash weights as sold on the market are divided into several divisions, so far as increment of weight is concerned. Weights weighing from two and one-half to ten and one-half pounds have an increment of onehalf pound each from eleven to twenty-three ounds, the increment is one pound each; and om twenty-four to forty-eight pounds the incrementistwo pounds each. A proximately, 80% of the weights used weig from five to ten pounds, and it is in respect to weights ranging from live to ten pounds that my improvement is peculiarly adapted. The major portion of sash weights now sold on the market are made of cast iron. The cast iron entering into a sash weight construction is principally scrap. On account of their higher fusing point than scrap cast iron, wrought iron or steel are seldom used to make sash weights, and, therefore, the demand for scrap iron has increased in price to such an extent that the price of wrought iron and steel, suchas boiler plates, etc., is low in proportion. While the prices of these commodities change according to the demand therefor, at present scrap wrought iron and steel lates can be purchased for about less t an scrap cast iron, and sometimes orders for scrap cast iron will not be illed unless accompanied by a proportional order for scrap wrought iron and steel.

'So far as sash weights are concerned, it is perfectly obvious that if scrap wrought iron and steel can be handled economically and put up in marketable form within the required dimensions of the sash weight, it will make as good a sash weight as cast iron. Another material valuable for sash weight purposes, but which is now practically wasted, is the slag from blast furnaces. Another material of heavy specific gravity, val'- uable for sash weights, is barytes. When free from iron, barytes is used largely in the manufacture of paints. Where iron and other foreign elements are present, however,

barytes can not be ground up to form a pure' white pigment, and, therefore, is not used for that purpose. I propose to utilize the now unused form of barytes as an element in the construction of sash weights.

Due to the demand for sash weights varying in one-half pound sizes, from five to ten pounds, and which includes the ield' to which my invention is best suited, I propose to make up units of two or more materials suchv as cast iron, wrought iron, pressed barytes and slag and combine them, or some of them, in asingle weight for the purpose of utilizing tubes of substantially the same size for weights of diiferent Weight. For instance, if the tube had interior dimensions of l by 1%, and the units of cast iron, f

barytes or slag had substantially the same lateral dimensions, a unit of cast iron two inches long would weigh one and one-half pounds; and of pressed barytes or slag two inches long, one pound. Thus a column of slag or barytes six inches long would weigh three pounds; and a column of cast iron four inches long (having the lateral dimensions above given) would weigh three pounds. Or, to put the matter another way, a column of barytes having the lateral dimensions given and eight inches long would weigh four pounds, whereas a column of cast iron of the same length and lateral dimensions would weigh six pounds. By forming these materials of different specific gravities into units it is obvious that in a tube of given length, by combining the units of cast iron and barytes or slag, a column having a variable weight can readily be produced. To obtain the half-pound gradations, end caps are em* ployed in my construction, over which end caps the tube constituting the shell or casing is crimped. These cap pieces, when hollow, together with the tubes,1 are estimated to weigh one-half pound, but by making one of the end caps solid a half-pound can b e added, or by making both end caps solid, taking into consideration the weight of the tube, a pound may be added to the weight.

The following table will be useful in determining the unit combinations in different weights:

Caps to fit taper ends (filled) 1b. Unlled, weight negligible. Barytes or slag section 12x 14x 2:1 lb.

Size No. I-Icla inches. (Tube 4 inches tapered ends 1 inch.)

COMBINATIONS.

ggg? Shell. Cap. arytes or Slag. Iron.

2% lbs. 1b. 2 sections 2 lbs` 3 H n u 2 n t .12 l l 1 lsection l1; lbs. 4 u u u u l 2 il 8 n rize o. ce ce inc es. u e inc es a ere S N 2 1% 11 9 h T b 8 h t d ends 1 inch.)

COMBINATIONS.

sheu. cap. Barytes or sag. Iron.

45 lbs Hb. 4sectons4lbs. 5 Il' lE li lb- 4 l( 4 51g E 3 3 1 Section 1?; lbs. 6 li Alz [I (I 2 l( 2 li 2 h' 3 Il 6,1 n u A1 u l u l u 3 n 4,; n '7l H U .lill i I l I n i n I 4 il 6l i( Size No. 3-1 x Zxl inches. (Tube 12 inches tapete lends 1 inch.)

COMBINATIoNs. i

Total Weight. Shell. Cap. Barytes or Slag. Iron.

7% lbs. 1 lb. 22 1b. 6 sections 6 lbs. 8 f 1 92- 5 5 lsection llbs. 8,1V l. 1 .i i l. 4 .l 4 a 2 .l 3 .l 91 [I l Il Il 3 Il 3 [I 3 Ki 41]) H 9,1 n 1 u u 2 n 2 u 4 n 6 u 10l n 1 u u l u l l: 5 u 7g u l( l la il 1 I l i' 6 if 9z Size No. 4-1x1x19 inches. (Tube 18 inches tapered ends 1 inch.)

COMBINATIONS.

Total weight Shell. Cap. Barytes or Slag. Iron.

1l lbs. LL lbs. l lb. 9 sections 9 lbs. 12 1f; 7 7 2 SeCtiOIlS lbS. l 13 l. L. a 2l. 5 n 5 l 4 l. 6 .l 14 1;.. ,.7 3 3 G 9 .l 15 l( l Il l l (l 8 (l l( Size No. 5,-1a1-:r29 inches. (Tube 28 inches tapered ends 1 inch.)

COMBINATIONS.

Total Weight. Shell. Cap. Barytes or Slag. Iron.

16 lbs. lllbs. 1b. 14 sections 14 lbs. 17 12 12 2sections 3lbs. 18 ,l 12, l. ,1; l. 10 l. 10 a 4 .l 6 l. 19' l. a u 8 .l 8 l. l. 9 u 20 .l l; f. .l 6 .l G l. 8 n 12 .l 21 1i.. i... 4 4 10 15 22 l. ,ji 2 2 ,2 18 23 f 1i 14 21 I have determined from an examination of various window casings that the space allowed for a four and one-half pound weight was practically the same as that allowed for a seven pound weight, and consequently there is no objection to making a four and one-half pound weight as long as a seven pound weight.

The cast iron and slag units referred to can readily be cast `of the required size and weight, but the barytes is preferably reduced to granular form and pressed in a suitable mold, with an appropriate binder, and afterward allowed to dry. The wrought iron and steel which usually comes in plate form can readily be unched in the form of washers and rivetedp together if desired, by countersunk rivets, as shown in Fig. 1.

Assuming that the proper combination of units, whether of wrought iron plates riveted together, as indicated at 1 in Fig. 1, or cast iron, as indicated at 2 in Fig. 1, or pressed barytes or slag, as indicated at 3, is made up, these units are placed in a tube 4. Tube 4 preferably consists of sheet metal that may be drawn as a single tube or formed by bending a plate and forming a longitudinal seam along the edges thereof. Cap pieces 5, solid or hollow, as occasion demands, are arranged at the ends of the core composed of the combination of units, after which the ends of the tube are folded in over the cap pieces as more particularly described in a companion application filed by me of even date herewith. The construction of the tube and the manner of folding the ends thereof form no part of this present invention, and therefore l will not refer to the same in detail here.

While l have shown units of uniform size but different specific gravities, it is obvious that the units could be of different sizes but uniform weight. It will also be manifest that the shape and size of the units may be changed and double units or half units employed as desired.

Having thus described the invention, what is claimed as new and desired to be secured by Letters Patent is:

l. A sash weight having units formed from diiierent kinds of materials of different specific gravity, and means for holding said units together; substantially as described.

2. A sash weight composed of units of the same size but dierent specific gravity, and means for holding said units together; substantially as described.

3. A sash weight composed of mixed units of iron and of pressed barytes, and means for holding said units together; substantially as described.

4. A sash weight provided with a number of units, one of which consists of a plurality of separate metal pieces permanently connected together; substantially as described.

5. A sash weight comprising units of materials having different speeiiio gravity, and a shell 0r Casin inelosing said units; substantially as desori ed.

6. A sash weight comprising units of the same size but of different speoiie ravity, and a shell or casing inelosing sai units; substantially as described.

7. A sash weight comprising units of approximately the saine size, formed of different kinds of materials, and a shell or casing inclosing Said units; substantially as described.

S. A sash weight comprising mixed units of iron and pressed barytes, and a shell or easing inelosing said units; substantially as described.

9. A sash weight comprising mixed units of different specific gravity, one of said units -consisting of a plurality of metal pieces er-` n manently connected together, and a she or easing inclosing said units; substantially as described.

In testimon whereof I hereunto afliX my signature in t e presence of two witnesses, 25

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