US3049274A

US3049274A - Metal severing device

Info

Publication number: US3049274A
Authority: US
Inventors: Fred E Mosley
Original assignee: Individual
Current assignee: Individual
Priority date: 1959-06-22
Filing date: 1959-06-22
Publication date: 1962-08-14
Anticipated expiration: 1979-08-14

Description

Aug. 14, 1962 F. E. MOSLEY 3,049,274

METAL SEVERING DEVICE Original Filed May 4. 1956 5 Sheets-Sheet l Fred E. Mos/ey Aug. 14, 1962 F. E. MosLEY METAL SEVERING DEVICE 5 Sheets-Sheet 2 Original Filed May 4, 1956 SMM( Wm. ND,

INVENTolL Fred E. Mos/ey WQ@ ATToRNEYS Aug. 14, 1962 F. E. MosLEY 3,049,274

METAL SEVERING DEVICE Original Filed May 4, 1956 5 Sheets-Sheet 3 Fred E. Mos/ey A T TORNE YS 5 Sheets-Sheet 4 Original Filed May 4, 1956 F. E. MosLEY 3,049,274

METAL SEVERING DEVICE 5 Sl'xevacs-Sheei*l 5 Aug. 14, 1962 Original Filed May 4, 1956 United States Patent O 3,049,274 METAL SEVERING DEVICE Fred E. Mosley, R0. Box 1552, Waco, Tex. Continuation of applications Ser. No. 582,781, May 4,

1956, and Ser. No. 643,346, Mar. l, 1957. This application June 22, i959, Ser. No. 822,152

7 Claims. (Cl. 22S- 97) This invention relates in general to new and useful improvements in metal severing devices, and more specifically for an improved metal severing maching for severing into sections relatively large metal bodies, such as automobile bodies.

Although an automobile body is of a reltaively great bulk, the actual volume of metal to be found therein is relatively small and may be crushed into a relatively small package. However, in order to crush an entire automobile body at one time there would be required a very large press. Since such presses are very expensive and because they take up quite a large amount of room, it is not feasible for even the larger of the junk yards to own such a press. Accordingly, it is now necessary for the automobile bodies to be cut up into sizes which the smaller presses may handle by using expensive Vcutting means such as an acetylene cutting torch. An acetylene cutting torch is -relatively slow in the cutting up of an automobile body and requires the services of a relatively skilled operator.

It is therefore the primary object of this invention to provide an improved metal severing machine which is s constructed whereby automobile bodies or other large bodies may be positioned therein and may be severed into a plurality of pieces, preferably three pieces with the individual pieces or sections of the automobile body being of a size to be readily handled by existinU presses.

Another object of this invention is to provide an improved metal severing machine o-f the type for severing automobile bodies or the like, the metal severing machine including a plurality of vertically disposed cutters, the cutters being formed of vertically spaced blades with the blades of opposed cutters being staggered so that the automobile body or other body is cut with a severing action.

Still another object of this invention is to provide an improved cutter for cutting automobile bodies and the like into three sections, the cutter including a first set of fixed cutters and a second set of movable cutters, the individual cutters being transversely spaced and cooperating so as to simultaneously form two cuts on an automobile body whereby the automobile body is divided into a forward section, an intermediate section and a rear section, the intermediate section being disposed within the contines of the metal severing machine at the end of the cutting operation, but pushed from one end thereof independently of the lfront and rear ends of the automobile body.

A further object of this invention is to provide and improved metal severing machine for cutting automobile bodies and the like into sections in a simple and quick operation, the machine being of a self-contained type which operates through the use of a hydraulic system, the machine being of such a nature whereby once the vehicle body has been positioned within the contines of the metal severing machine, -the machine may be operated by a single operator.

It is an additional primary object of this invention to provide a metal severing device which is of a size to receive a vehicle body and which is so constructed whereby the vehicle body to be cut into sections is vertically fed therein utilizing a crane or other hoisting apparatus and which has a section thereof severed therefrom by being held in the metal severing device with that par-t not Lif) Big' Patented Aug. lli, i952 ice severed by the metal severing device being suspended by the crane during the severing operation.

Another object of this invention is to provide an improved metal severing device for large objects, the metal severing device being so constructed whereby it includes a bed into ywhich an article to be severed has the lower end thereof lowered, the lower end of the article to be severed being pushed through the metal severing device and out one end thereof during the severing operation.

A further object of this invention includes the provision of a metal severing device of the vertical feeding type, the severing device including a bed having a bottom wall and upstanding side walls, one end of the bed being open and having extending thereacross a bridge member carrying irst severing means, a pusher plate being mounted within the bed for movement towards the one end, second severing means being carried by the upper edge of the pusher plate for cooperation -with the first severing means whereby as a lower part of an article is being pushed through the bed, it is severed by the first and second severing means as the severed portion is pushed out through one end of the bed.

A particular object of the invention is to provide an improved metal severing device wherein spaced, pointed teeth are employed to tear or rend relatively thin metal sections as compared to a shearing action.

These together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:

FIG. l is a side elevational View of the metal severing machine which is the lsubject of this invention and shows the cutters thereof in spaced relation for receiving an automobile body or the like,

FIG. 2 is a horizontal sectional view taken substantially upon the plane indicated by the section line 2-2 of FiG. l and shows further the details of the metal severing machine including the arrangement of fixed and movable cutters thereof,

FIG. 3 is a vertical sectional view taken substantially upon the plane indicated by the section line 3 3 of FIG. 2 and shows further the details of the metal severing machine including the particular configuration of the cutter blades and the means for `actuating the movable cutter head thereof,

FIG. 4 is a transverse sectional View taken substantially upon the plane indicated by the section line 4 4 of FIG. 3 and shows the general arrangement of the blades of the fixed cutters,

FIG. 5 is a transverse vertical sectional view taken substantially upon the plane indicated by the section line 55 of FIG. 3 and shows the general arrangement of the blades of the movable cutter,

FIG. 6 is a top plan view yon a reduced scale of the metal severing machine and `shows an automobile body after having been divided into three sections by the met-al severing machine,

FIG. 7 is a side elevational view 4of a modified form of the metal severing device,

FIG. 8 is an enlarged fragmentary longitudinal sectional view taken through the metal severing device of FlG. 7 and shows the specific details `of the severing means thereof,

FlG. 9 is a top plan view of the metal `severing device of FIG. 7 and lshows the position of a section of metal severed by the metal severing device immediately after the severing therewith,

FIG. l() is a transverse vertical sectional View taken substantially upon the plane indicated by the section line 3 -10 of FIG. 7 and shows the details of lirst metal severing means, and

`FlG. 11 is a vertical sectional view taken substantially upon the plane indicated by the section line 11-11 `of FIG. 7 and shows the details of second severing means of the metal severing device.

This application is a continuation 'of my co-pending applications, Serial No. 582,781, led May 4, 1956, now abandoned, and Serial No. 643,346, led March 1, 1957, now abandoned.

lReferring now to the :drawings in detail, it will be seen that there is illustrated the metal severing machine which is the vsubject of this invention, the machine being referred to in general by the reference numeral 10. The metal severing machine 1t) includes a supporting frame which is referred to in general by the reference numeral 12.

As is best illustrated in FIGS. 3 `and 4, the supporting frame 12 includes an elongated base plate 14 which is supported upon -a suitable base or the ground by means of a pair of transversely spaced, longitudinally extending frame members 16. The frame members 16 are connected together lat spaced -intervals by transverse frame members 18. The base plate .14 extends outwardly of the frame members 16 'and the outer edge portions thereof are braced by suitable gussets 20.

Extending vertically at the two corners of one end of the supporting frame 12 are fixed cutters or metal tearing jaws which are referred to in general by the reference numeral 22. inasmuch as the xed cutters 22 are identical with the exception of being left and right, only one of the cutters 22 will be described in detail hereinafter.

Each of the txed cutters 22 includes a vertically extending, transverse plate 24 which extends inwardly from the edge of the base plate "14 `a desired distance. The inner edge of the plate 24 is braced by a vertically extending, longitudinally disposed plate 26. The

plates

24 and 26 are reinforced relative to each other by vertically spaced gussets 28.

It is to be understood that the

plates

24 and 26 are Idisposed at substantially right rangles to each other and include a projecting corner 30. Extending inwardly and longitudinally from the projecting corner 30 'are a plurality of spike-like blades `or

teeth

32, 34, 36 and 38. The blades or

projections

32, 34, 36 and 38 each are of a generally triangular, pointed coniigur-ation, and the tearing or rending point-s of the

teeth

32, 34, 36 and 38 are `arranged in an arcuate pattern, as is best illustrated in FIG. 3. rIhus, the individual pointed tearing points of the

teeth

32, 34, 36 and 38 progressively engage a body being cut so that a minimum of force is necessary for the cutting action.

Carried by the supporting frame 12 is a guide assembly which is referred to in general by the reference numeral `40. The guide assembly 40 includes a transverse plate 42 which is disposed intermediate the ends of the supporting frame 12. The plate 42 is vertically disposed and has connected to the upper edge thereof a horizontally disposed top plate `44 which is disposed in yspaced parallel relation to the base plate 14. The top plate 44 overlies `and is secured to the upper ends `of the

plates

24 and 26. The plate 44 is reinforced at the end thereof remote from the plate 42 by

transverse frame members

46 and 48. Disposed coplanar with the plate 42 land overlying the plate 44 is another bracing frame member 50. The plate 44 is further braced by a longitudinally extending frame member 52, as is best illustrated in FIG. 5.

Slidably mounted Within the enclosure formed between the base plate 14 and the top plate 44 is an upstandng cutter head, ram member or pusher means which is referred to in general by the reference numeral 54. The cutter head 54 is formed of a pair of longitudinally spaced, transversely extending

plates

56 and 58 which are connected together by vertically disposed, longitudinally extending plates 68, the plates 60 being disposed between the

plates

56 and 58 and terminally secured thereto. 'lt is to be noted that the cutter head 54 is of a size to pass between the plates 26 of the xed cutters 22. Disposed opposite vertical corners of the cutter head 54 opposing .the cutters or iixed jaws 22 are cutters or movable jaws 62. The cutters 62 are identical, with the exception of being left and right, and therefore only one of the cutter-s 62 will be described in detail.

The cutter 62 includes a plurality of vertically spaced spike-like blades or

teeth

64, 66 and 68. The blades or

projections

64, 66 and 68 are horizontally disposed and include projecting rending or tearing points. Also,

'the

teeth

64, 66 and 68 `are similar in size and configuration to the fixed

teeth

32, 34, 36 and 38 and -are so mounted whereby the pointed ends thereof are disposed in an arcuate pattern, as is best illustrated in FIG. 1.

At this time it is pointed out that the

teeth

64, 66 and 68 of the movable cutter 62 vare vertically olfset with respect to the

teeth

32, 34, 36 and 38 of the fixed cutters 22. Further, `as is best illustrated in FIG. 2, the cutting or tearing points of the

teeth

64, 66 land 68 are horizontally oiset with respect to the tearing points of the

teeth

32, 34, 36 yand'38. Thus the

teeth

64, 66 and 68 will pass over and between the

teeth

32, 34, 36 and 38 and provide for the tearing or rending of a met-al body, such as automobile body linto three parts. It is pointed out yat this time that the

cutters

22 and 62 actually do not shear the metal being cut in the true sense of the word, but actually pierce and tear the metal due to the formation of the various teeth of the cutters. Further, the teeth of the

cutters

22 and 62 are so arranged whereby the section of the body severed b-y the

cutters

22 and 24 may be pushed between the cutters 22 by the cutter head 54. During the retracting of the cutter head 54, the shape of the teeth of the

cutters

22 and 62 will result in the self-cleaning of the cutter 62 whereby the cut intermediate section of a body will be left at the one end of the supporting frame 12.

In order to guide the cutter head 54, there is secured to the upper surface of the base plate 14 a pair of longitudinal guide plates 78. Similar guide plates 72 yare secured to the underside of the top plate 44 in overlying relation to the guide plate 70. The

guide plates

76 and 72 yare so spaced apart whereby the cutter head 54 is snugly received therebetween and prevent transverse movement of the cutter head 5-4.

In order to effect movement of the cutter head 54 to provide the cutting or tearing action, there is provided a pair of horizontally disposed, elongated hydraulic or

ud motors

74 and 76. The

duid motors

74 and 76 each includes a cylinder 78 having mounted therein a piston (not shown) to which there is connected la piston rod 80. The free end of each piston rod 80 is secured by means of a fitting 82 to the plate 56 of the cutter head 54.

The `hydraulic motors 74 'and 76 are mounted in overlying relation with respect to each other and to the supporting frame 12. In order that the

hydraulic motors

74 and 76 may be suitably mounted, the cylinders 78 thereof are supported between longitudinally spaced pairs of

standards

84 and 86. The standards 84 are connected together by transverse plates 88 which underlie and support those portions of the cylinders 78 remote from the cutter head 54. Secured to the standards 86 is lche plate 42, the plate 42 also serving to support the cylinders 78,

- the cylinders 78 passing through the plate 42.

Also extending upwardly from the base plate 14 `are outwardly disposed standards 98. The standards 90 cooperate with the

standards

86 and 84 to support platforms 92. and 94 on opposite sides of the hydraulic motors 74 `and 76. Carried by the platform 92 is `a power unit 96 which is preferably in the form of an internal combustion engine. The power unit 96 includes a drive shaft 98 on which there is mounted a drive pulley or sprocket 100.

Mounted on the platform 94 is a hydraulic pump unit 102 which may contain a fluid reservoir (not shown). The pump unit 102 includes a driven shaft 104 having a driven pulley or sprocket 186. Entrained over the pulleys 108 and 186 and dn'vingly connecting the two together is a drive belt 16S.

Extending from the hydraulic pump unit 182 are

hytdraulic lines

118 and 112 which are connected to opposite ends of the cylinders 7 8. The

hydraulic lines

110 and 112 are connected to a valve assembly 114 which is mounted on the hydraulic pump unit 162 so that the flow of uid into and out of the

hydraulic motors

74 and 76 may be lcontrolled to extend or retract the piston rods 88 as is deemed necessary.

In the operation of the present invention, lan automobile body or other large body to be cut into sections is placed on the base plate 14 between the

cutters

22 and 62, the automobile body being disposed transversely of the supporting frame 12. The

hydraulic motors

74 and 76 are then actuated to move the movable cutters 62 towards the xed cutters 20. mobile body -is coniined against movement, either vertically or longitudinally by the

cutters

22 and 62 and the

plates

14 and 44, the teeth of the

cutters

22 and 62 will rend and tear the automobile body into a forward section 116, an intermediate section 118 and `a rear section 12). The forward and

rear sections

116 and 120 drop generally in the position where they are cut and intermediate section 114 is pushed lout between the cutters 22 to ya position at the end of the machine 19 remote from the

hydraulic motors

74 and 76.

In order -to prevent jamming of the cutter head 54 with respect to the plates 14 and 44 'and to facilitate the release of the intermediate section 118, there is secured to the bottom part of the plate 58 at opposite edges thereof vertically disposed, generally triangular plates 122. The plates 122 overlie a bottom plate 124 which in turn rests upon and slides on the base plate 14. The Vertical plates 122 serve to lift up the intermediate section 118 from' the base plate 14 and prevents parts thereof from passing under the cutter head 54. Further, once the cutter head 54 has .passed between the cutters 22, the plates 122 will have a tendency to dump off the intermediate section 118.

From the foregoing description of the invention, it will be readily apparent that once an automobile body or other large body has been placed in the machine 1G, one operator by manipulating a simple control may perform the entire cutting action.

A modified form of the invention is illustrated in FIGS. 7-ll, there being shown an alternate metal severing device 126. The metal severing device includes a bed referred to in general by the reference numeral 128. As is best shown in FIGS. lli and ll, the bed 128 includes a pair of lower longitudinal frame rails 130 disposed at opposite sides thereof. Each of the frame rails 13) includes a base flange 132, an opstanding web '134 and an upper flange A1136.

The bed or enclosure 128 includes side plates 138 which extend upwardly from the frame members or frame rails 139, the side plates 138 having inner surfaces disposed coplanar with the webs 134. The side plates 138 are reinforced along their lower edges by means of flanges '140 which rest upon the flanges 136 and are secured thereto. The upper edges of the side plates 138 are reinforced by top flanges 142 which extend both inwardly and outwardly of the side plates 138. Each of the side plates 138, as is best shown in FIG. 7, is reinforced by a suitable exterior bracing 144. The ends of each of the side plates 138 are reinforced by vertical flanges 146 and 148. Extending between the frame rails 130 is a bottom wall '156. The bottom wall 150 terminates at opposite side edges thereof in vertical llanges 152 which are secured to the frame rails 130. The bottom Wall 150 is also reinforced at longitudinally spaced inter- Inasmuch as the `auto- 6 vals by transverse ribs 154 best `shown in FIG. 8. Also shown in FIG. 8 is the fact that the frame rails 130, extend longitudinally beyond the ends of the side plates 138 and the bottom wall 150.

Extending transversely across the bed 128 at the right end thereof, as viewed in FIG. 8, is a bridge member which is referred to in general by the reference numeral 156. The bridge member 156 includes a bottom plate 158 which has opposite ends thereof resting upon the anges 142 and suitably secured thereto. Secured to one edge of the horizontal plate 158 is a vertical plate 16u. The plate 16@ is reinforced relative to the plate 158 by means of outer gussets 162 and a central gusset 164. The outer gussets are in the form of upper ends of reinforcing plates 166 which extend down along opposite sides of the bed v128 and are secured to the frame rails 138.

Carried by the vertical plate and extending downwardly and away from the open end of the bed 128 are first metal severing means 168. The metal severing means 168 are in the form of a plurality of individual triangular severing plates or spike-like teeth 170 which are best illustrated in FIG. 8. The teeth 170 are spaced transversely `of the plate 160, as is best illustrated in FIG. 9. Also carried by the plate 160, but above the teeth 179, are anchoring teeth 172 for `stabilizing an upper part of an article which is being severed in the metal severing device 126.

Mounted within the bed 128 for movement therealong towards and away from the bridge member 156 is a pusher plate 174. The pusher plate, means or ram member 174 is vertically disposed and is provided at the bottom thereof with a rearwardly extending base plate 176 which rests upon and slides upon the bottom wall 159. The upper edge of the pusher plate 174 is reinforced by a rearwardly extending upper plate 178.

ln order that the pusher plate '174 may be guided in its movement towar s and a ay from the bridge mem ber 156, there is provided an inwardly directed ilange 18) adjacent the upper edge of each of the side plates 138. The -ilanges 1811 cooperate with inner parts of the flanges 142 and form opposed trackways 182, as is best shown in FIG. 8.

Seated in each of the trackways 182 for longitudinal movement therein is a guide shoe 184. Each guide shoe 184 is secured to an upper part of the pusher plate 174 and is braced relative thereto by means of a diagonal brace 186, best shown in FIG. 9.

Also best shown in FiG. 9 are the details of the tapered forward edge 188 of each of the guide shoes 184. By so tapering the forward edge of each guide shoe 184, metal is prevented from jamming the guide shoes and the tapered forward edge 188 of each guide shoe urges the metal out of the trackway in which it is mounted for sliding movement.

Carried by the top plate 178 of the pusher plate are second metal severing means 199. The second metal severing means are in the form of a plurality of pointed pins or spike-like teeth `192. Each of the teeth '-192 extends upwardly and away from the plate 178, as is best shown in FIG. 8. Further, the teeth are transversely spaced and are staggered with respect to the teeth 170 (FIG. 8). r'hus the

teeth

178 and 192 cooperate to sever or tea-r away a lower portion of an article suspended within the bed 128.

In the operation of the present invention, an article, such as a vehicle body, to be cut into sections, is lowered into the bed or enclosure 128 with the pusher plate 174 in the position illustrated in FIG. 8. The article is lowered by means of a crane or the like. The pusher plate is then moved to the right with the result that the lower section of the article is severed or torn in two by the action of the teeth 170 and '192. The upper part of the article remains suspended by means of the crane or other hoist means and may then be lowered into the bed for further severing after the pusher plate has been withdrawn to its normal position shown in FIG. 8.

It is to be noted that the framerails 13G extend to the left beyond the side walls 138. Carried by this portion of each of the frame rails is a framework 194. Supported by the framework is a fluid motor 196 of the extensible type. The fluid motor includes a cylinder 198 and a piston rod G. The piston rod has one end thereof connected to the pusher plate as at 202, shown in FIG. 8. The iluid motor also includes a piston (not shown) connected to the piston rod.

Mounted on the framework 194 is a platform 294. Mounted on the platform 294 is a power unit 206 which drives a fluid pump 2438. Also mounted on the platform 264 is a uid reservoir 219. Suitable

iiuid lines

212 and 214 are connected to opposite ends of the cylinder 19S. Other iiuid lines 216 and 2&8 extend between the reservoir and the pump, and the reservoir and the four-Way valve 220 mounted on the pump. The Valve 221B is provided with a suitable control wheel 222. By operating the valve 220, the uid motor is controlled to control the movement of the pusher plate whereby the severing lor tearing operation may be performed.

The severing operation carried out by the present invention is not readily described with exactness but combines a cutting or tearing and rending action imparted to the lighter metallic portions, coupled with a very approximate form of snapping or shearing of the heavier metal members such -as the longitudinal frame elements of an automobile body. A degree of crushing of the automobile body will occur, but this is only an added advantage since the sections of the body are subsequently to be compacted even further. The present structure readily severs and divides :a body into smaller sections which llend themselves to convenient compaoting into small bales in presses of relatively small capacity.

As the movable jaws of the severing structure close upon the iixed jaws thereof, the points of the fixed and movable teeth pierce and form adjacent openings in the metallic panels which are present, the further closing of the jaws causing a tearing of the metal between such perforations, -along with the approximate cutting and tearing of heavier members along with a rough or large clearyance jaw or shearing action. Thus, the operation of the machine is described as a rending or tearing and severing operation rather than a shearing operation as the latter is general-ly understood.

It is to be noted that the severing action of this invention does not involve cutting as by forcing -a sharp blade against a plate or two blades past one another in wiping relationship. Such structures -are quickly dulled and jammed when `an attempt is made to cut heterogeneous scrap metal therewith. Instead, this invention relates to metal severing devices having large spaces between the severing elements, spaces too large to be called clearances, and involves a substantially simultaneous perforating and tearing or rending `action which eieetively severs scrap metal of widely varying nature into pieces of a suitable size while avoiding the diiiiculties of dulling and jamming.

The foregoing description of the invention is explanatory thereof and various changes in the size, shape and materials, as well as in the details `of the illustrated construction may be made, within the scope of the appended claims, without departing from the spirit of the invention.

What I claim and desire to secure by Letters Patent is:

l. A metal severing device for cutting large metal structures such as -automobile bodies including, a supporting frame, a pair of spaced .xed cutter jaws, a pair of spaced mov-able cutter jaws carried by the frame -for reciprocal movement thereon, land means for reciprocating the movable jaws toward and away from the xed jaws, each jaw of each pair of jaws including Ia plurality of spaced pointed spike-like teeth extending toward the other pair of jaws.

2. A vertical `feeding metal severing device for large objects such as vehicle bodies and the like, said severing device comprising a bed, said bed including la bottom wall and upstanding side walls, a transverse bridge member at one end of said bed, said bridge member extending between upper edges of said side walls, first metal severing means carried by said bridge member, a pusher plate mounted Within said bed for sliding movement towards -and away from said bridge member, drive means connected to said pusher plate for moving said pusher plate, said pusher Plate being vertically disposed, second metal severing means carried by an upper edge of said pusher plate for cooperation with said first metal severing means, said one end being open for the discharge of metal.

3. A vertical feeding metal severing device for large objects such las vehicle bodies and the like, said severing device `comprising a bed, said bed including abottom wall and upstanding side walls, la transverse bridge member at one end of said bed, said bridge member extending be- :tween upper edges of -said side walls, first metal severing means carried by said bridge member, a pusher plate mounted said bed for sliding movement towards and away from said bridge member, drive means connected to said pusher plate for moving said pusher plate, said pusher plate being vertically disposed, second metal severing means carried by an upper edge of said pusher plate for cooperation with said iirst metal severing means, said one end being open for the discharge of metal, said drive means including an extensible uid motor mounted at the opposite end of said bed, and a power unit connected to said iuid motor to operate said uid motor.

4. A vertical feeding Imetal severing device for large objects such as vehicle bodies and the like, said severing device comprising a bed, said bed including, a bottom wall and upstanding side walls, a transverse bridge member atk ione end of said bed, said bridge member extending between upper edges of said side Walls, first metal severing means carried by said bridge member, a pusher plate mounted within said ybed `for sliding movement towards and away from said bridge member, drive means connected to said pusher plate for moving said pusher plate, said pusher plate being vertically disposed, second metal severing means carried by an upper edge of said pusher plate yfor cooperation with said iirst metal severing means, said ione end being open Vfor the discharge of metal, op-

t posed trackways carried by upper parts of said side walls,

`shoes carried by opposite edges of said pusher plate seated in said trackways for stabilizing said pusher plate when in operation.

5. A vertical feeding metal severing device as set forth in claim 2 wherein the iirst metal severing means are t a plurality of spaced teeth carried by the bridge member, the second metal severing means are a plurality of spaced teeth carried -by the pusher plate, the spaced teeth of the rst met-al severing means and the spaced teeth of the second metal severing means being staggered horizontally with respect to 'one another so as to intermesh during the severing operation.

6. A metal severing device for large objects such as vehicle bodies and the like, said severing device comprising an enclosure having at least one opening through which the object to be severed may be introduced into the enclosure, a transverse member bridging the enclosure at one margin of said opening, metal severing means carried by said bridge member and including a plurality of spaced pointed spike-like teeth arranged approximately in a line, pusher means mounted Within the enclosure for reciprocal movement across the opening and toward and past the spike-like teeth of the metal severing means and reverse movement from beneath the metal severing means across said opening, drive means connected to the pusher means for moving said pusher means, means for discharging from the enclosure severed portions of the objects being severed, one edge of the pusher means being positioned for reciprocal movement in adjacent and 9 spaced relationship to the severing means, and the teeth projecting toward said pusher means.

7. A metal severing device for severing large objects such as vehicle bodies and the like, said severing device including, an enclosure for receiving a portion Vof said large object to be severed, the enclosure having at least one open side through which said portion may be introduced into the enclosure, a transverse bridge member bridging said open side at one margin thereof, a ram member reciprocally mounted in fthe enclosure for movement across the opening toward and past the bridge member and reverse movement from beneath the bridge member and across the opening in a reverse direction, means -for reciprocating the ram member in the enclosure, the bridge member and ram member having edge portions which are closely adjacent and spaced from one another when the ram moves past the bridge member, at least one of the References Cited in the le of this patent UNITED STATES PATENTS 584,805 Wonders June 22, 1897 2,105,215 Dinzl Jan. 11, 1938 2,131,345 Dinzl Sept. 27, 1938 2,211,051 Bolling Aug. 13, 1940 2,269,914 Parker Jan. 13, 1942 2,337,917 Miller Dec. l28, 1943 2,591,510 Clark Apr. 1, 1952