US1583252A - Scale base - Google Patents

Description

H. O. HEM

May 4 1926.

SCALE BASE Original Filed y 10, 1916 Allan .n "an Patented May 4, 1926.

UhllTED STATES PATENT @FFHCF...

I-IALVOR O. HEM, OF TOLEDO, OHIO, ASSIGNOR TO TOLEDO SCALE COMPANY, OF TOLEDO, OHIO, A CORPORATION" OF NEVT JERSEY.

SCALE BASE.

Original application filed May 10, 1916, Serial No. 96,511. Divided and this application filed July 11, 1921. Serial No. 483,647.

To all whom it may concern:

Be it known that I, HALvoR O. HEM, a citizen of the United States, residing at T0- ledo, in the county of Lucas and State of Ohio, have invented certain new and useful Improvements in Scale Bases, of which the following is a specification.

This'application is a division of U. S. application Ser. No. 96,511, filed May 10, 1916.

This invention relates to weighing scales, and one of its principal objects is to provide a light, compact and inexpensive self-contained base for dormant scales particularly adapted for use in scales of comparatively great capacity.

Another object of the invention is the provision of means for supporting the base upon surfaces which are not exactly level or plane.

Another object of the invention is the provision of efficient means for supporting the fulcrum bearings of the platform levers.

Another object of the invention is the provision of a scale base having means for supporting the fulcrum pivots of the platform levers, the structure being so arranged that the sides and front of the platform may be substantially flush with the sides and front of the base, while excessive overhang of the platform is avoided.

Other objects and advantages will be apparent from the following description, in which reference is had to the accompanying drawings illustrating preferred embodiments of my invention and wherein similar reference numerals designate similar parts throughout the several views.

In the drawings Figure 1 is a plan view of a scale base embodying my invention, parts being broken away and parts being in section to more clearly disclose the structure;

Figure 2 is a longitudinal sectional view of a slightly modified form of scale base embodying my invention;

Figure 3 is an end view of the scale base shown in Figure 1, parts being broken away and parts in section for clearness of illustration; and

Figure 4 is a perspective view of a nut adapted to co-operate with the feet upon which the base is supported.

The form of base shown in Figure 2 differs from that shown in Figures 1 and 3 only inthat the lower side of the base shown in Figure 2 is closed by means of a plate or floor of sheet metal. Since this is a mere addition to the form shown in Figures 1 and 3, the same reference numerals have been used to designate like parts in all the figures, and Figure 2 will be referred to in describing the form shown in Figures 1 and 3.

Referring to the drawings in detail, the scale base of my invention comprises side members 1 of channel formation, the open sides of the channels being turned outwardly, and end members 2 and 2, likewise of channel formation. the open sides of the channel member 2 in the forward end memher being turned inwardly. The end members 2 and 2 are positioned between the side members 1, as shown in Figure 1, and are secured to the side members by means of angle plates 3 which are positioned at the corners of the frame and secured by means of rivets to the vertical webs of the side and end members (see Figures 1 and 2).

Located between the end members 2 and 2 and extending parallel thereto is a similar channel member 1 which is likewise secured between the side members 1 by means of angle plates 5. Secured to the lower flanges of the side and end members 2 and 2 (which lie in the same plane) at the corners of the frame are four gusset plates 6 which not only serve to strengthen the frame of the base but also serve as parts to which the supporting feet for the base may be at tached. Each of the gusset plates 6 is provided with a rectangular opening 7 which receives the reduced rectangular portion 8 of a threaded nut 9. A threaded post 10 extends through the opening in the nut 9 and is swiveled into a foot 11 which is adapted to rest upon the surface supporting the scale. The post 10 is provided with a hexagonal head 12 at its upper end by means of which it may be turned to adjust the height of the corner of the scale that it supports, and a lock nut 13 serves to prevent accidental rotation of the post in the nut.

The fulcrum bearings 14: of the platform levers are supported in brackets 15 and 16 which rest upon the lower flanges of the end member 2 and the cross member 4. The fulcrum brackets are, therefore, directly supported by the gussets 6. They are further secured, as shown in Figures 1 and 2, to the vertical webs of the end member and cross member by means of bolts 17. As is indicated in Figure 3, I prefer to secure each of the brackets to the adjacent web by means of a single bolt 17 and to make the lower ends of the brackets which rest upon the horizontal flanges of arcuate shape so that the brackets may swing sligl'itly and thus allow the bearings supported thereby to come into proper alignment with the knife edges of the fulcrum pivots of the levers.

Owing to the fact that the channels of the end members open inwardly, the fulcrum bearings may be so placed that there is very little overhang of the platform, even though it extends above the upper flange of the end channel member 2 to a position flush with the outside of the vertical web. Since it is permissible for the ends of the fulcrum pivots and load pivots to come quite close to the sides of the frame, it is unnecessary that these channels open inwardly in order to avoid excessive overhang, and, as the end member 2 opens inwardly and the side members open outwardly, the frame may be rigidly constructed wirhout mitering the corners and the connection between the cross member t and the side members may be made equally strong and rigid.

When the platform levers are in place, as shown in the several figures of the drawing, and the platform is in its proper position upon them, the rear edge of the platform extends to a position directly over the rear side of the web of the member 41-, and extending from side to side of the frame in juxtaposition to the rear edge of the platform is a channel beam 18. A similar channel beam 19 extends from side to side of the frame along the upper flange of the end member 2. The channel beams 18 and 19 serve to support a metallic deck 20 which is substan tially level with the platform and is adapted to carry the column, cabinet, or other supporting structure for the beam or automatic weighing mechanism. The channel beam 18 may, if desired, be additionally supported by means of one or more intermediate brackcts (not shown) secured to the cross membar 4.

In Figure 2 the lower side of the base is shown as enclosed by means of a sheet metal plate or floor 21. The base may be so equipped when it is not to be located upon a closed surface.

While it will be apparent that the illustrated embodiments of my invention herein disclosed are well calculated to adequately fulfill the objects primarily stated, it is to be understood that the invention is susceptible to variation, modification and change within the spirit and scope of the subjoined claims.

Having described my invention, I claim:

1. In a device of the class described, in combination, parallel channel side members arranged with the open sides of the channels turned outwardly, cross channel members connecting said side channel members and arranged with the open sides of their channels turned toward each other, and fulcrum brackets secured to the vertical webs of said cross channel members, the lower ends of said fulcrum brackets being supported by the horizontal flanges of said channel cross members.

2. In a device of the class described, in combination, parallel channel side members arranged with the open sides of their channels turned outwardly, cross channel members connecting said side channel members and arranged with the open sides of their channels turned toward each other, and fulcrum brackets pivotally secured to the vertical webs of said cross channel members.

3. In a device of the class described, in combination, parallel channel side members arranged with the open sides of their channels turned outwardly, cross channel members connecting said side channel members and arranged with the open sides of their channcls turned toward each other, and fulcrum brackets pivotally secured to the vertical webs of said cross channel members, the lower ends of said fulcrum brackets being of arcuate shape and substantially engaging the lower horizontal flanges of said cross members.

5. In a device of the class described, in combination, side channel members, end channel members extending therebetween, the channels of said members opening laterally, gusset plates secured to the lower horizontal flanges of said side and end channel members, and supporting feet mounted on said gusset plates.

5. In a device of the class described, in combination, side channel members, end channel members extending therebetween, the channels of said members opening laterally, gusset plates secured to the lower hori zontal flanges of said side and end channel members, supporting feet mounted on said gusset plates, and means for independently adjusting the heights of said supporting feet.

6. In a device of the class described, in combination, parallel channel side members arranged with the open sides of the channels turned outwardly, cross channel members connecting said side channel members and arranged with the open sides of their chansaid side and end mem'bers, gusset plates secured to the lower horizontal flanges of said side and end channel members, and supporting feet mounted on said gusset plates.

8. In a device of the class described, in combination, side channel members, end channel members extending therebetween, a cross channel member extending between said side channel members and located between said end channels, channel beams extending between said side channel members and located respectively adjacent said cross member and one of said end members, and a deck supported upon said channel beam.

9. In a device of the class described, in combination, a rectangular frame comprising a plurality of channel members having their channels opening laterally, gusset plates secured to the lower horizontal flanges of said channel members, and fulcrum brackets restings upon the lower horizontal flanges of said channel members and supported by said gusset plates.

10. In a device of the class described, in combination, a rectangular frame comprising a plurality of channel members having their channels opening laterally, gusset plates secured to the lower horizontal flanges of said channel members, and fulcrum brackets supported by said gusset plates.

11. In a device of the class described, in combination, parallel side members having vertical webs and horizontal flanges along the upper edges of said webs, cross members connecting said side members, said cross members also having vertical webs and hori zontal flanges along the upper edges of said webs, gusset plates secured to and lying below said side and cross members, and fulcrum brackets supported by said gusset plates.

12. In a device of the class described, in combination, parallel side members having vertical webs and horizontal flanges along the upper edges of said webs, cross members connecting said side members, said cross members also having vertical webs and horizontal flanges along the upper edges of said webs, gusset plates secured to and lying below said side and cross members, and fulcrum brackets supported by said gusset plates and secured to said vertical webs.

HALVOR O. HEM.

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