US2884028A

US2884028A - Stationary table for meat and bone saws

Info

Publication number: US2884028A
Authority: US
Publication date: 1959-04-28
Anticipated expiration: 1976-04-28

Description

April 2s, 1959 I F. F. BRUCH 8 I STATIONARY TABLE. FOR MEAT AND BONE SAWS Filed May 20, 1957 3 Sheets-Sheet l lll I.

l j INVENTOR: 2 FRANK F. BRUCH ATT'YS Apx ll 28 1959 F. EBRUCH v v 2,

' V STATIONARY TABLE. FOR MEAT AND BONE SAWS Filed May 2o, 1957 s Sheets-Shget 2 FIGS FIG. 3

A ril 28, 1959 F. F. BRUCH 2,334,028

- STATIONARY TABLE FOR MEAT AND BONE SAWS Filed May 20, 1957 S SheetS-Sheet a ,4 25 I6 FIGG-V- r United STATIONARY TABLE FOR MEAT AND BONE SAWS Application May'20, 1957, SerialNo. 660,284

4 Claims. (Cl. 143-132)v This invention relates to a meat and bone saw of the typegenerally disclosed in United'States Letters Patent No. 2,492,824, issued December 27, 1949, to A. H. Ahrndt et a1., and assigned to the present assignee. More specifically, the invention relates to the mounting of a stationary table which is removable from its support and has cooperating relationship with the usual slide table.

The invention consists of an elongated bar and a pair of lugs which are spaced from each other and laterally spaced from the bar, and have cooperating engagement to limit longitudinal, lateral and vertical movement of the demountable stationary table on its support. A clamping member is provided with an extension on a part of the table support for clamping one side (the front) of the table to'its lower supporting base. The far end of the table is provided with projections which are received in slots in a locking bar, and thus limit the movement of the table, whereupon the operation of a locking clamp will hold the removable table in its normal stationary position.

The primary object of the present invention is the provision of new and improved means for limiting the forward and shiftable movement of the table, as well as lateral or longitudinal movement thereof, there being improved means for locking the table in its adjusted position.

Another important object of the invention resides in the provision of a stationary member which cooperates with protruding lugs on the table and has interfitting engagement therewith to guide front to rear movement of the table, there being blocks arranged on a part of the supporting frame of the table so as to insure the removable table being at the proper height.

A further object of the invention consists of lugs of a new and improved design to effect proper positioning of the table at the front side thereof, and to insure that the table be at the proper elevation. A new and improved clamping element cooperates with at least one projection on a lug to lock the table in its adjusted position.

Still another object of the invention resides in a new and improved clamping member for clamping the removable table in its adjusted position and to maintain the table in its normal stationary position.

Numerous other objects and advantages will be apparent throughout the progress of the specification which is to follow.

The accompanying drawings illustrate a certain selected embodiment of the invention, and the views therein are as follows:

Fig. l isa detail perspective view of a power-operated meat and bone sawand embodying the invention;

Fig. 2 is adetail perspective view, on an enlarged scale, showing. the improved stationary table of the invention, parts being broken away for the sake of clearness;

Fig. 3 is a transverse sectional view on the line 3-3 of Fig. 2, the view being on a scale larger than that disclosed in Fig. 2;

Fig. 4 is a detail perspective view of the locking arm of the clamp;

Fig. 5 is a detail transverse sectional view on the line 5-5 of Fig. 2;

Fig. 6 is a detail perspective view showing the closure top located above the lower cabinet and supporting the demountable table; and

Fig. 7 is a bottom plan view'of the stationary, but

demountable, table.

The particular meat and bone saw herein shown for the purpose of illustrating the invention comprises a main machine frame 1, Figs. 1 and 2, having a lower cabinet 2 which is closed by enclosing side walls and a closure top 3. An upstanding vertical column or hood 4 extends upwardly from the top closure 3, and terminates at its upper end in a housing 5 which supports an upper saw pulley (not shown) over which an endless saw 6 is trained, Figs. 1 and 2. The saw 6 is driven by a power-driven saw pulley (not shown) arranged in the lower cabinet 2.

A slide table 7, Figs. 1 and 2, is arranged at the front of the machine and is mounted on spaced rails 8, 8 which are fixed to a forward projecting part 9 of the machine frame 1. The slide table 7 is mounted for slidable movement in a rectilinear path and has its inner edge 10, Fig. 1, lying immediately adjacent and close to the inner edge of a normally stationary, but demountable, table 11.

The stationary table 11 is cut away, as at 12, Figs.

1, 2 and 7, to accommodate a saw guide 13 and fiber block 14, Figs. 1 and 2. The table 11 is also cut away as at 15, Figs. 1, 2 and 7, to make provision for the column or hood 4. The table 11 is adapted to be mounted removably on top of the top closure 3 of the cabinet 2, there being means provided for guiding the table 11 so that it will be positioned properly with respect to the slide table 7. The means for guiding the table 11 insures it being positioned longitudinally, and laterally, as well as being at the proper elevation. Means, on the closure top 3 cooperating with the underside of the table 11, are provided to effect proper registration between both said latter members, as well as insuring proper positioning of the table ill with respect to the slide table 7.

The stationary table 11, which can be removed for various purposes, particularly for cleaning and repair, has spaced

longitudinal channels

16 and 17, Figs. 2 and 7, welded or otherwise secured to the underside of the table 11. Blocks or

spacers

18 and 19, Figs. 3, 5 and 7, underlie the channel irons 1'6 and 17 and are welded to the bottoms of the channels to bring the top of the table 11 to the proper elevation and in the same plane as the top of the slide table 7.

Side members

29 and 21, Figs. 2 and 7, are welded to the underside of the table 11 and to the ends of the

channels

16 and 17. The

side members

20 and 21, which are in the form of angle irons, extend transversely of the

channels

16 and 17. The rear ends of the blocks or spacers 18 of the channel 16 are provided with projections 22 which extend a predetermined distance beyond the rear guiding edge 23 of the channel 16. The lower rear ends of the projections 22 of the blocks or spacers 18 are sloped or beveled at their upper ends, as indicated at 24, Fig. 3. The projecting ends 22 are adapted to have interfitting engagement with a locking bar 25 which is adjustably fastened on top of the closure top 3 of the cabinet 2. The locking bar 25 may comprise a solid bar, polygonal in cross section, and has milled slots 26' and 27, Fig. 6, at its bottom, near its outer ends, to cooperate with each projecting end 22 of the blocks 18. The forward longitudinal side 28 of the locking bar 25 acts as a anemone guiding edge which cooperates with the guiding edge 23 of the channel so that the two members will be in proper front to rear position when they are brought to contacting relation. The

slots

26 and 27 receive the projections 22, the beveled or sloping bottom edges 24 of the projections 22 making it easy to slide the projections 22 in the

slots

26 and 27 at the bottom of the bar 25. The bar 25 is fastened to the closure top 3 by means of setscrews 29 passing through elongated or otherwise enlarged holes formed in the bar and screw threaded into the top closure 3, Figs. 3 and 6.

Guide lugs

30 and 31, Figs. 5 and 6, are secured to the top of the cabinet top closure 3 and are adapted to contact a front or guiding edge 32 of the channel 17. The upper, forward edges of the

guide lugs

30 and 31 are beveled or sloped at their upper edges, as indicated at 33, to permit ease in fitting the channel 17 in position with respect to the locking bar 25. The guide edge 23 of the channel 16 will contact the guiding edge or face 28 of the locking bar 25, and the guiding

surfaces

34 and 35, respectively, of the

lugs

30 and 31 will contact the guide edge 32 of the channel 17, Figs. 2, 6 and 7. The lower inclining or sloping surface 24, Fig. 3, of the blocks or spacers 18 make it easy for the projections 22 to be slid in position in the

slots

26 and 27 of the bar 25, and the inclines or slopes 33 on the

lugs

30 and 31 make it easy for the channel 17 to be dropped in position against the channel 17. The

lugs

30 and 31 may be secured to the top closure 3 in any convenient manner, such as by setscrews 36, Fig. 5, passing through elongated or enlarged holes in the base of the guide lugs 3t) and 31, and then screwed in position to the top closure 3. The bar 25 and the

lugs

33 and 31 have adjustment front to rear and side to side by reason of the

setscrews

36, 36 engaging their respective elongated or enlarged slots. The sideways adjustment of the table with respect to the bar 25 is limited as the bar 25 is solid on each side of the

slots

26 and 27. The outer ends of the material of the bar at the outer ends of the slots and the bar being solid between the inner ends of the slots, guide the table sideways. Adjustment is provided lengthwise of the bar, as well as front to rear, by the enlarged holes into which fit the smaller shanks of the setscrews. The

lugs

30 and 31 also permit side to side and front to rear adjustment. The blocks or

spacers

18 and 19 determine the proper elevation. When the parts are once in adjusted position, the table 11 will always be in position to always be replaced at the same identical location. The locking bar 25 prevents the table 11 from moving upwardly with respect to the top closure 3 at the rear end of the table 11 because the bar covers the

slots

26 and 27, and the top of the projections 22 engages the underside of the bar material at the

slots

26 and 27. Means are provided for locking the front or forward end of the table 11 with respect to the top closure 3.

The means for locking the forward end of the table in rigid position comprises a clamp which has a locking arm 37 which is rotatively mounted on top of the closure 3 by means of a setscrew 38 having an operating knob 39. The underside of the arm 37 is cut away to provide a recess 40 at its free end, thus providing an overhanging part or lip 41 which is adapted to engage with a lock bar or projection 42 secured to the underside of the channel 17, intermediate the ends of the channel 17 and projecting outwardly therefrom. The locking arm 37 is freely mounted on the shaft 38, Fig. 6, and is adapted to be swung inwardly so as to cause the lip 41 to extend over the top of the locking projection 42. The underside of the lock ing arm 37 is arcuate, as indicated at 43, to permit ease in applying the locking arm 37 in position over its cooper ating locking projection 42, the arcuate surface 43 acting as a cam to assist in forcing the table to its guided position, and to prevent the table 11 from being raised upwardly. The setscrew 38 is located near one extreme end of the locking arm 37 to provide a slight inclined Q1;

&

wedged space between the underside of the clamping arm 37 and the top of the closure 3, as shown in Fig. 3, to bind tightly the end 44 of the locking finger against the top 3 when the knob 39 is screwed to locked position.

The saw guide 13 and its cooperating fiber block 14 are adapted to be screwedto the front of an angle iron 45 which is secured to the 'top of the closure 3, the angle iron 45 being shown in phantom, Fig. 6.

The closure top 3 is provided with an elongated slot 46 to permit an endless saw 6 to be applied over the saw pulleys (not shown).

The top 11 is mounted in place by first placing the table in inclined position with its rearward end downward and its forward end upward so that the beveled projecting ends 24 of the projections 22 will fit into the

slots

25 and 26 and the guiding edge 23 against the guide edge 28 of the bar 25. The forward end of the table is then moved downwardly between the

channels

16 and 17 to bring the guide edge 32 of the channel 17 against the guiding edges 34 and 35 of the

lugs

30 and 31, whereupon the table 11 is positioned in place. The arm 37 is then turned to bring the locked part 41 over the projection 42 to its locked position, as shown in Fig. 3. The knob 39 is tightened, whereupon the overhanging end 41 of the arm 37 overlies the projecting end of the lug 42. The table 11, therefore, is locked into proper guided position with respect to the cooperating slide table 7 and in the same plane therewith.

The invention provides an extremely economical arrangement for guiding the table with respect to its support, as well as maintaining the table at the proper elevation so that it will always lie in the same horizontal plane as the slide table 7.

The guiding, supporting and locking means are relatively simple; they may be arranged easily in position, and have proper front to rear adjustment along its inner edge to lie closely with the cooperating outer edge of the slide table. The entire table 11 may be removed for cleaning and other purposes by merely operating one element (the knob 39) to release the locking arm 37 from its cooperating projecting end 42, whereupon the entire table 11 may be lifted bodily from the top 3 of the cabinet 2.

Changes may be made in the form, construction and arrangement of the parts without departing from the spirit of the invention or sacrificing any of its advantages, and the right is hereby reserved to make all such changes as fall fairly within the scope of the following claims.

The invention is hereby claimed as follows:

1. A meat and bone saw comprising a frame, a normally stationary table demountable on said frame, a slide table slidable in a rectilinear path arranged adjacent the stationary table, a longitudinally extending supporting member fixed to the underside of said stationary table at the front thereof and having a rear guiding surface, blocks secured to the underside of said supporting member and adapted to rest on the frame to bring the stationary table to the same level as the slide table, projections on some of said blocks extending forwardly, a locking bar secured at the forward end of the frame and having a guiding surface for engagement with the guiding surface on the supporting member, said locking bar having slots and adjustably mounted in a horizontal plane on top of said frame, some of said projections being adapted to be received in said slots, spaced apart lugs adjustably mounted for limiting back and forth movement of the stationary table on the top of said frame at the front thereof and spaced forwardly of the locking bar, a second longitudinal member spaced at the rear of the stationary table beneath the top and having a guiding edge for contacting engagement with the forward surfaces of the lugs, a projection on the forward end of the second longitudinal member, and locking means engageable with the last named projection to lock the rearward end of the stationary table to the. frame and to force. said. guiding surfaces. against each other and to hold the projections into the slots in the bar.

2. A meat and bone saw comprising a frame, a normally stationary table demountable on said frame, a slide table slidable in a rectilinear path arranged adjacent the stationary table, a longitudinally extending supporting member fixed to the underside of said stationary table and having a guiding surface, blocks secured to the underside of said supporting member and adapted to rest on the frame to bring the stationary table to the same level as the slide table, projections on some of said blocks, a locking bar secured at one end of the frame and having a guiding surface for engagement with the guiding surface on the supporting member, said locking bar having slots and adjustably mounted in a horizontal plane on top of said frame, some of said projections being adapted to be received in said slots, spaced apart lugs adjustably mounted for limiting back and forth movement of the stationary table on the top of said frame, a second longitudinal member spaced beneath the stationary table top and having a guiding edge for contacting engagement with the surfaces of the lugs, a projection on the second longitudinal member, and locking means engageable with the last named projection to lock the stationary table to the frame and to force said guiding surfaces against each other and to hold the projections into the slots in the bar.

3. A meat and bone saw comprising a frame, a normally stationary table demountable on said frame, a slide table slidable in a rectilinear path arranged adjacent the stationary table, a longitudinally extending supporting member fixed to the underside of said stationary table at the front thereof and having a rear guiding surface, blocks secured to the underside of said supporting member and adapted to rest on the frame to bring the stationary table to the same level as the slide table, projections on some of said blocks extending forwardly, a locking bar secured at the forward end of the frame and having a guiding surface for engagement with the guiding surface on the supporting member, said locking bar having slots and adjustably mounted in a horizontal plane on top of said frame, some of said projections being adapted to be received in said slots, spaced apart lugs adjustably mounted for limiting back and forth movement of the stationary table on the top of said frame at the front thereof and spaced forwardly of the locking bar, a second longitudinal member spaced at the rear of the stationary table beneath the top and having a guiding edge for contacting engagement with the forward surfaces of the lugs, a projection on the rearward end of the second longitudinal member, locking means engageable with the last named projection to lock the rearward end of the stationary table to the frame at the rearward side thereof and to force said guiding surfaces against each other and to hold the projections into the slots in the bar, said locking bar being adjustable by providing enlarged openings therein and fastening means passing through the enlarged openings and threaded into the frame for permitting front to rear and side to side adjustment of the locking bar, and said lugs having enlarged openings and locking means in said latter opening and secured to the stationary table top for permitting front to rear and side to side adjustable movement.

4. A meat and bone saw comprising a frame, a normally stationary table demountable on said frame, a slide table slidable in a rectilinear path arranged adjacent the stationary table, a longitudinally extending supporting member fixed to the underside of said stationary table at the front thereof and having a rear guiding surface, blocks secured to the underside of said supporting member and adapted to rest on the frame to bring the stationary table to the. same level as the slide table, projections on some of said blocks extending forwardly, a locking bar secured at the forward end of the frame and having-a guiding surface for engagement with the guiding surface on the sup porting member, said locking bar having slots and adjustably mounted in a horizontal plane on top of said frame, some of said projections being adapted to be received in said slots, spaced apart lugs adjustably mounted for limiting back and forth movement of the stationary table on the top of said frame at the front thereof and spaced forwardly of the locking bar, a second longitudinal member spaced at the rear of the stationary table beneath the top and having a guiding edge for contacting engagementtwith the forward surfaces of the lugs, a projection on the rearward end of the second longitudinal member, and locking means engageable with the last named projection to lock the rearward end of the stationary table to the frame at the rearward side thereof and to force said guiding surfaces against each other and to hold the projections into the slots in the bar, said last named locking means comprising a pivotally mounted member undercut at its bottom and engageable with a projection on one of the longitudinal bars to lock the stationary table top to the frame and to prevent vertical, lateral or longitudinal shiftable movement of the stationary table with respect to the frame.

References Cited in the file of thispatent UNITED STATES PATENTS 2,317,568 Wallace et al. Apr. 27, 1943 2,435,765 Anderson Feb. 10, 1948 2,492,824 Ahrndt et al. Dec. 27, 1949 2,585,957 Meeker et al. Feb. 19, 1952 2,814,318 Brown Nov. 26, 1957