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Nov, 5, 1946. F? ENGLISH El‘AL ' 2,410,??? HOIST Filed June 8, 1945 3 Sheets-Sheet 1 _ INVENTORS fenu/z EA/G'L/J'l/ MARK A. EusL 1.0-; 1477025157: Nov. 5, 1946. F. ENGLISH EI‘AL 2,410,777 HOIST Filed June 8, 1945 3 Sheets-Sheet 2 INVHVZ'ORS ' FRANK [A/GZ/JH _ BY Alma/.4. Alva/5” M AF‘TEMEY5 Nov. 5, 1946. F. ENGLISH EI'AL 2,410,777 HOIST Filed June 8, 1945 3 Sheets-Sheet 3 m/ H-5 1 INYENTORS FRANK ENGL IJ‘H BY . MARK A ENGL/J'H Patented Nov. 5', 1946 2,410,777 UNITED STATES PATENT OFFICE 2,410,777 HOIST Frank English, Pasadena, and Mark A. English, San Gabriel, Calif.; Elane English adminis tratrix of said Frank English, deceased Application June 8, 1945, Serial No. 598,330 10 Claims. 1 This invention is concerned with hoisting mechanisms and particularly with a hoisting mechanism adapted to be mounted on a truck. In its preferred embodiment, the invention con templates a hoist mounted on a truck, and adapt (0!. 212—8) 2 in which the cable of the hoist of Figs. 1 and 2 is connected to the hoisting means and the rest of the apparatus; Fig. 4 is a detailed elevation of the crossarm at ed to raise ice from the truck to the top of a re- . frigerator car. In the icing of refrigerator cars of conventional the top of the mast of the apparatus of Figs. 1 and 2; Fig. 5 is a plan view of the crossarm of Fig. 4; Fig. 6 is an enlarged elevational View of the slider and track of Figs. 1 and 2, showing the manner in which the mast is attached to the design, it is necessary to hoist the ice to the top of the car and on remote sidings and the like, the ice is usually delivered by truck. It has been pro slider; posed heretofore to mount a suitable hoisting Fig. 7 is an end view of the mast, slider and means on the truck itself, but since the ice must track of the apparatus of Figs. 1 and 2; be hoisted approximately twenty feet from the Fig. 8 is an enlarged fragmentary elevation truck body, conventional types of hoisting means 15 showing the pivot member and its relation to the are cumbersome and inadequate. As a result of mast and the track of the apparatus of Figs. 1 our investigations, we have developed a hoisting and 2; and mechanism which is collapsible along the side of Fig. 9 is a fragmentary end view of the pivot the truck body, but which carries a mast which member and mast. can be raised into operating position at the un 20 Referring now to the drawings and particularly loading site, i. e. at the refrigerator car, in a very to Figs. 1 and 2, it will be observed that a hori simple manner. In its collapsed form, the hoist occupies very little space and can be left perma nentlv on the truck. ' zontal track H3 is mounted on the outside of a truck body I l and extends longitudinally from In essence, our invention contemplates the 26 the cab of the truck to the rear end. A slider l 2 is mounted in the track. A mast I3 is hinged to the slider. Preferably the mast I3 is tubular, prises a track (preferably horizontal), a rider for example a piece of 3" pipe. A snap catch slidably mounted in the track, a mast, a hinge I4 is mounted on the lower end of the mast and connecting an end portion of the mast to the rider, and a pivot member mounted in ?xed rela 30 is adapted to engage a slot 32 in the track on the truck when the mast is raised to a vertical tion to the track in the plane de?ned by the mast position. A pivot member l5 ismounted on the in movement around the hinge, the axis of the rear end of the truck near the upper edge of the pivot extending in the same general direction as truck body. This pivot member is tubular and that of the hinge, and the mast being slidably the mast slides through it. The axis of the pivot mounted in the pivot member. horizontal and substantially parallel to the axis In its preferred form, the hoisting mechanism 35 is of the hinge which connects the lower end of the of our invention is provided with means for lock mast to the rider on the track. A crossarm it‘ ing the rider to the track when the mast is raised, is connected to the upper end of the mast by a the locking means preferably being a snap catch. universal joint member H which permits the The hoisting mechanism preferably is provided crossarm to rotate aroimd the top of the mast with a hoisting means such as a winch with a 40 and also permits angular movement between the cable connected to the hoisting means and pass crossarm and the mast. ing along the track and also along the mast. If An ice-holding means, for example an ice tongs the mast is tubular, which is the preferred form, I 8, is fastened to the end of a cable l9 which the cable may pass upwardly through the mast itself. These and other features of our invention 45 passes over a pulley 20 on one end of the crossarm, thence over a centrally mounted pulley 2! at the will be understood more thoroughly in the light center of the crossarm and thence passes inside of the following detailed description taken in the mast downwardly to the rider I2. From that conjunction with the accompanying drawings in point the cable passes along the track to a pulley which: combination in a hoist mechanism which com Fig. 1 is an elevation of a preferred form of the hoist of our invention mounted on the side of a 50 2| and thence over a second pulley 22 to a winch 23 (see Fig. 3). . Assuming that the truck is loaded with ice and that the mast is in its lowered position as shown Fig. 2 is a plan of the hoist of Fig. 1; Fig. 3 is a cable diagram showing the manner 65 in Fig. 1, the operation is as follows: The truck is driven to the point at which the motor truck; 2,410,777 3 ice is to be hoisted, for example along side a re frigerator car. The winch is started so that the cable is reeled up. The ice hook acts as a stop and jams against the pulley at the end of the crossarm so that the cable tightens and pulls the slider carrying the lower end of the mast to the right (as seen in Fig. 1). This raises ther mast which slides in the pivot and the mast assumes a substantially vertical position at which point the snap catch l4 drops into a slot in the track di- ’ rectly below the pivot member and thus holds the mast in a vertical position. If the winch is then reversed to pay out the cable, the ice hook may be dropped to the truck or to the ground where ‘a load is affixed. When the cable is ‘wound in there after, the load, say a cake of ice held in the ice tongs, is raised to an appropriate position for load ing onto the top of the refrigerator car as shown in the dotted view of Fig. 1. The structure of the crossarm and its associ ated pulleys and universal joint connecting it to the mast are best seen in Figs. 4 and 5. Refer ring to these ?gures, it will be observed that the universal joint I‘! rotates around the axis of the mast and also permits the crossarm to rock with respect thereto by virtue of a hinge 24. The crossarm is strengthened by means of a truss rod 25 which is bent over the top of a support 26 fastened approximately at the center of the cross arm and carrying the pulley 2 I. Referring now to Figs. 6 and '7, it will be ob served that the track It comprises two channel 4 arm in a substantially horizontal position when the mast is raised. The winch preferably is operated by a conven tional power take-off (not shown) from the I transmission of the truck. The mast may be of any desired length, but conveniently is in the neighborhood of twenty feet long so as to allow ample height for reach ing over the top of a refrigerator car. ' As noted, the ice tongs itself, acts as a stop at the end of the cable when the mast is being raised by the winch. However, if desired, a spe cial stop ‘member on the cable may be provided. > We claim: 1. In a hoisting mechanism, the combination which comprises a track, a rider slidably mounted in the track, a mast, a hinge connecting an end' portion of the mast to the rider, a pivot member mounted in ?xed relation to the track in the plane de?ned by the mast in movement around the hinge, the axis of the pivot extending in the same general direction as that of the hinge, and the mast being slidably mounted in the pivot member, a hoisting means and a cable connected to the hoisting means and passing along the track from the end portion thereof located near est the pivot member to the hinge and thence along the mast to the unhinged end thereof. ‘ 2. In a hoisting mechanismpthe combination which comprises a track, a rider slidably mounted in the track, a mast, a hinge connecting an end portion of the mast to the rider, a pivot member , mounted in ?xed relation to the track in ‘the neighborhood of an end thereof in, the plane each other, face to face, so that the ?anges of de?ned by the mast in movement around the the channel irons hold in place the rider l2, 35 hinge, the axis of the pivot extending in the same which is a hollow rectangle formed of smaller general direction as that of the hinge, and the channel iron and carrying a hinge 21 that is mast being slidably mounted. in the pivot mem welded to the under side of the mast end. ' The her, a hoisting means, a cable connected to the upper side of the mast end carries the snap catch hoisting means and passing along the track and M which is held in position in a slot in the track 40 the mast, and means for preventing movement when the mast is vertical, by means of a spring of the cable with respect to the mast. . _ 28. The cable as shown, passes through the mast 3. In a hoisting mechanism; the combination and is bent backward to the right over the hinge which comprises a track, a rider slidably mount-' 21 in the rider and passes along the track to the ed in the track, a mast, a hinge connectinguan ' pulley 2|A at the end of the track, and thence end portion’ of the mast to the rider, and a pivot through the pulley 22 to the Winch. member mounted in ?xed relation to the track The mounting of the mast in the pivot mem in the plane de?ned by the mast in movement ber I5 is best seen in Figs. 8 and 9. The pivot around the hinge, the axis of the pivot extending member is tubular and of such dimensions that in the same general direction as that of the the mast slides throughit easily. It is provided 50 hinge, and the mast being slidably mounted in’ with a pivot or hinge 30, the axis of which is hori the pivot member, guiding means along the mast,; zontal and parallel to the axis of the hinge 21 on a cable mounted in the guiding, means and ex, the rider. The hinge is supported by a steel tending from its free end to the hinge and thence 7 framework 3| that is fastened to the track. . If along the track to a point in the neighborhood desired, the pivot may be slidably mounted in the 55 of the pivot member, a, load'holding means on framework to allow limited horizontal movement. the mast-end of the cable, and a pulling means‘: In this way, the mast may be kept vertical even attached to the track end ofthe cable. ‘ ‘ t 4. Apparatus according tov claim>3 ,in'which when, due to sloping ground, the truck body is . the mast is tubular and the cable isrguided by not completely horizontal. It will be observed passing therethrough. ' ' ' ‘ that the pivot is directly above the slot 32, into 5. In a hoisting mechanism; the; combination. , which the spring catch l4 drops when the mast which comprises a track,'a' rider slidably mount-J is raised. ed in the track, a mast, a hinge connecting an When the mast is to be lowered, the winch is end portion of the "mast t0 the rider,.a cross released to permit the cable to unwind, the spring arm attached to theother end portion of the catch M is raised and the lower end of the mast mast, a pivot member mounted in ?xed relation 7. is kicked to the left by a lever arrangement 33 to the track in the plane de?ned by the mast provided with a kicker 34 and fastened to the in movement around the hinge, the axis of the framework 3! at its right side by means of a bear pivot extending inthesame general direction ing 35. As soon as the mast is kicked from its 70 as that of the hinge, and the mast-being slid-1 vertical position, it will slide into its lower. posi ably mounted in the pivot member, a‘ cable pass tion by itself. ing along the crossarm and thence along the A chain 40 is fastened to the frame supporting mast to the hinge and thence along the track the pivot member and to the end of the crossarm opposite the pulley 20, in order to hold the cross 75 to a point in the neighborhood of the pivot mem irons IDA, HIB placed horizontal and parallel to 5 2,410,777 her, and guiding means holding the cable in the position described but permitting longitudinal 6 end portion of the mast to the rider, a pivot member mounted in ?xed relation to the track movement of the cable. in the plane de?ned by the mast in movement 6. Apparatus according to claim 5 in which around the hinge, the axis of the pivot extend a stop is ?xed to the cable adjacent the cross ing in the same general direction as that of the arm and is adapted to engage the crossarm and hinge, and the mast being slidably mounted in prevent movement of the cable with respect to the pivot member, a cable passing along the the crossarm when the cable is pulled along the mast to the hinge and thence along the track mast to a given position from the end position to a point in the neighborhood of the pivot, guid of the cable adjacent the track. 10 ing means holding the cable in the described 7. Apparatus according to claim 5 provided position but permitting its longitudinal move with a swivel on which the crossarm is mounted ment, and a stop on the cable adapted to pre . to swing about the axis of the mast. vent relative movement between the mast and the 8. Apparatus according to claim 5 provided cable when the cable is pulled along the mast to with a universal joint mechanism on the mast ward the hinge to a predetermined position. in which the crossarm is mounted to swing about 10. Apparatus according to claim 9 in which the axis of the mast and also in a plane passing means is provided for locking the rider with re through the axis of the mast. spect to the track at said point in the neighbor 9. In a hoisting mechanism, the combination which comprises a track, a rider slidably mount 20 hood of the pivot member. ed in the track, a mast, a hinge connecting an FRANK ENGLISH. MARK A. ENGLISH.