US1187744A - Hotbed. - Google Patents

Description

" A. T. KELLER.

HOTBEDj APPLICATION FlLEDi-JAN- 15. I916- LW WMQ I v Patented June 20,1916.

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A. T. KELLER,

. HOTBED.

APPLICATION FILED JAN. 15, 1916.

, v Patented June 20,1916.

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A. T. KELLER. Home!) APPLICATION FILED JAN. 15, $916.

Patented June 20, 1916.

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- MWJW M ALBERT T. KELLER, U15 CHICAGO, ILLINOIS.

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useful Improvements in Hotbeds, of which the following is a specification; I

My invention relates to the steel industry, and has particular reference to a novelhotslender shapes during the cooling thereof.

An object in the present construction is to provide a bed ofthe character'described which shall be, for all practical purposes, perfectly balanced, 6., one in which the load to belifted is ineffect counterbalanced by a descending load in another portion of the device. Much less power is required for the operation of a balanced bed, and this is an important consideration for the rea-- son that the entire load must be lifted a very' large number of times during a days oper ation. I

A further object is the provision of in which the rods or bars shall be maintained in parallelism, or, in other words,

step into adjacent notches and kept straight while cooling. A still further object is the provision of an apparatus which shall combine the desired result in a simple and economical manner and without the use of parts which become worn and require frequent replacement.

Theinvention will be more readily understood by reference to the accompanying drawings, wherein v Figure l is a' side elevation of a hot bed constructed in accordance with my inven tion; Fig. 2 is a plan view thereof; Fig. 3 is a section on the line 33of Fig. 1, and Fig. 4: is a fragmentary end elevation of the means for discharging the bars onto the hot bed. i 1

In the drawings, it will be seen that on suitable supports 10, 11, ll mount transverse girders 12, 13, which serve to support the aryskids are thelifting bars 19, 20. In-

a bed Specification of Lettersiatent. 'Pimlrenptwfll J 1 mm 2(1), 1916, 7 Application filed January 15, 1916. Serial No. 72,214. i i I stead ofproviding a single lifting bar which is of a length substantially equal to that of the stationary skid, I sever the liftingbar into-two lengths-and provide duplicate mountings for each length. These mountings comprise girders 21, 22, which extend transversely from side to side of the bed. A. connecting beam 23 Joins the girders 21, 22, and provides bearingsfor links bed adapted for use in the handling of long,

24, 25, secured to the longitudinal girders 26 at their opposite ends. By providing two links of equal length, I secure a parallel p a walking or balanced beam 28, having a bearing on the foundation block 29. A pitman 30 is connected at one end to. the walking beam and at the other end to a crank31 on a shaft 32 through which motion is imparted, through suitable slow down gearing, by means of a motor 33. It will be noted, by reference to Fig, 3, that the connections described are duplicated on the opposite sides ofthe bed.

The rods, such as shown in Fig. -1, are received by the feeding-in rolls 16, and, after reaching the proper point, are dis charged into the first notch of the stationary skids by means of the lever 34, the discharg 'ing position of the lever being shown' in Fig. 4. Assuming that the shaft 32, which carries the crank 31, 1s movlng 1n a clock- 'wise direction, the lifting bars 20 will be in its travel will cause the descent of the lifter bar 20, the rod'sliding easily down the incline of the notch in the stationary skids, being held by the notch 35 in the lifter bars until it reaches practically the low point of the notches 15. As the lifter bars 20 are traveling upward, the lifter bars 19 are traveling downwardand are supporting a portion of the weight of the bars on the latter half of the bed. Thus it will be seen Mechanism constructed as described will out of repair.

that the load is equalized, or balanced, to a certain extent; at any rate the weight of-the lifter bars and parts thereof,- which weight is Considerable, is exactly balanced, and the only power necessarily exerted is that used to overcome .frictionand move the rod up the incline to the high point of the notches.

relation to each other, substantially as described.

2. Iii a hotbed, the combination of a plurality of fixed supporting bars havingnotches i'ntheir upper surfaces, a pair of lifting bars disposed between each adjacent pair of supporting bars, said lifting bars being disposed in end-to-end relation, means for supporting'said bars in balanced relation, means for'maintaining said lifting bars in a horizontal POSltlOIl'ilIld means for alternately raising and-lowering said lifting bars in opposed relation, substantially as described. I

- 3. In a'hot bed, the'combination of a series of notched stationary supports, a pair of lifting bars between adjacent supports, the

combined length of said pair oflifting bars being substantially equal to' the length of the stationary bars, a balanc d. beam cennot liable to become I .trally pivoted and connected to each of said lifting bars whereby the weights of said lifting bars are balanced, means for oscillat' ing said balanced beam and means for maintain'ing said lifting bars horizontal, substantially as describedv '4. In a hot'-bed, the combination of a p111 rality of stationary notched supports, a pair of lifting bars located between adjacent supportsv and disposed in end-to-end relation,

said lifting bars being provided with notches which, in one position of said'lifting notches in said stationary support, a balanced beam for supporting and substantially balancing said lifting bars, and a'motor for oscillating'said balanced beam andthereby causing-an alternate raising and lowering'of said lifting bars in opposed relation, 'substantially as described.

5. In a hot bed, the combination of a plurality of fixed, notched' supports, a plurality of pairs of lifting bars, one pair of said bars'being disposed between adjacent stationary supports, each pair of lifting bars being disposed in end-to-end relation, each lifting bar being connected to a support in such manner as to be maintained in a hOilZQlltillPOSltlOIl, a balanced beam having a fulcrum at its middle point and being connected at its end to each of said pair oflifting bars whereby the weight of said barsbars, are staggered with relation to the I are balanced, and means for oscillating said balanced beam, substantially as described.

Signedat Chicago, Illinois, this 5th day of January, 1916. ALBERT TQKELLER. Witnesses.: v

' NoRnIs E.- CRUL HARRY I. ALLEN.

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