Патент USA US2404443код для вставки
>Julyazs, 1946. N. B. IRVING SKID BRAKE Filed April 50, 1945- N 2,404,443 ì "'2 sheets-sheet 1` \. m» ’Nßffw'ng 2,404,443 Patented July _23? 1946 y UNITED 'l STATESfT' ` 2,404,445 - ` ._SKmßRAKE n - . _ _ ,- , o. OFFICE . ` ' Í i , Norman B. Irving', Philadelphia, Pa. Application April 30, 1945,l Serial No. 591,147 I (Cl. 19,3-41) . 2 This present invention relates to improvements in skids consisting in the provision of -a‘braking mechanism whereby the speed of containers slid 1 . 9 which has an aperture in its free end extending Íparallel tothe axis of the shaft. A pin I0 is in serted in the aperture and‘also‘ in an aperture k'formed in the lower free end of a lug I I which is safeguarding humanV life and .health and pro- `ï` attached at its upper end to and extends from the - ing on the skids may be controlled with a view of tecting the containers handled from being dam aged or destroyed. l _ ` The main object of the invention is the design 'of a skidding' structure including a track and car ria'ge slidable thereon and the provision ofA a brake normally'retracted within the track,`and adapted for movement against the bottom of the carriage ` for controlling the speed thereof. With these and other objects in view which will„_ ' lower side of the neck portion I2 of a brake mem ber I3. *The* latter is of relatively narrow hori zontal width and larger vertical depth and com ` prises an enlarged> portion I4 which extends con siderably above and below the upper and lower " edges'of the neck portion. The upper edge of the enlarged portion merges at the top end >(Fig- , ure' 2) into the upper edge of the neck portion. The lower edge of the enlarged brake member become apparent as the following disclosure is’ 1‘5» portion has two curved eut-outs I5 performing a Ifunction which will become manifest as the de understood, the invention consists in the novelty scription proceeds, .~ ' ' of features, combination and arrangement of The braking mem'ber is housed in a cylindrical parts as will behereinafter more fully described casing I6 which is disposed between and in paral and claimed in the appended claims. The description should be read in connection 20 lelism with the beams and attached at its ends by rivets I1 to the intermediate portion of the with the accompanying drawings forming part of two intermediate braces 3. 'I‘he brake casing is this application and in which: provided on the upper side with a longitudinal Figure l is a top plan view of the preferred em slot I8 which stops short of both ends and permits bodiment of my invention; Figure 2 is a central, longitudinal, vertical sec 25 the emergence of the upper edge part of the en larged portion of the brake member. Through tion of the same; the casing extended at right angles to the plane Figure 3 is a fragmentary side view of the upper of the brake member are two rods I9 that are end; spaced from one another to the same extent that Figures 4 and 5 are transverse sections on lines 30 corresponding portions of the cut-outs are spaced. 4-4 and 5-5 respectively of Figure 1. In inoperative position of the brake member the In the drawings in which like reference charac top edge portion of each cut-out rests on a rod ters designate like or similar parts, numeral 2 (Figure 2) and a counter-clockwise movement of indicates one of a pair of horizontally spaced the handle 5 will cause a movement of the brake beams of wood, steel or any other suitable mate rial which are notched at their bottom sides to 35 member-to the left and upward so that the top edge of the brake member which is normally flush receive spaced transverse braces 3. These braces with the top surf-ace of the casing, rises above hold the beams in the desired spaced relation and the latter and -c mes into frictional engagement are attached in pairs to either end portion of the with the under s1de of a slide or carriage 20. - The beams. Above the outer brace of the pair at tached to the upper end of the beams (Figure 2) 40 latter is slidably disposed on the beams and of a width equal to the spacing of the outer sides are formed in the latter registering holes in which p of the latter. The intermediate portion 2| of a shaft '4 is journaled. The front end (Figure 3) the carriage is slightly dished' to make a container of the shaft protrudes outwardly of the adjacent especially a barrel stay on the carriage; -'.lï‘rom ‘beam and carries a handle 5 which may be swung through a predetermined angle bounded by stop 45 the lower side of the carriage extends a guide 22 having the shape of a U (Figure 4) and embrac pins 6 ñxed to and extending from the outer side ing the casing described so that the carriage ls of the adjacent beam. The shaft carries a radial slidably and non-detachably connected to the ap pin 1 that engages either of the fixed stop pins paratus described. at the end of a swing. The shaft portion between The latter is shown in Figure 2 as mounted the beams carries also a pair of radially extend 50 prevents'axial displacement of the shaft. upon the edge of a pit or cellar so that the outer brace of the upper pair engages with its inner corner edge the ground near the edge of the cellar At an intermediate point between the beams the shaft is provided with a radially extending arm the lower end of which rests upon the floor of the ing pins 8 each of which slides over one of the confronting inner vertical sides of the beams and with suiiicient friction to prevent the apparatus, 2,404,443 ' ' Ív -’Í r 3 cellar, from sliding down. More elaborate pre cautions to insure the safety of the structure from sliding may be taken. In Figures 2 and 4 dotted lines indicate a con tainer 23 placed on the carriage disposed upon the upper end of the beams. During the down ward motion of the carriage and load the brake member by the proper manipulation of the handle may be brought to bear» against the bottom sur cam means for engaging and laterally displacing the brake into engagement with the carriage. 2. VA skidding apparatus comprising a skele tonized beam structure, a carriage slidable on the . structure, a >slotted brake casing received within the structure and guiding the carriage, a brake housed in the casing and adapted to emerge above the same through the slot to engage the carriage, cam means formed on the brake and cooperating face ofthe carriage so’that the arrival of the 10 with the casing> for lifting the brake during move latter and the container carried thereby at the mentI longitudinally of thev casing, and lever lower end of thefapparatus occurs at a speed which is not a menace to the life or health of the person or persons receiving the container in the ' cellar nor to the safe condition of the container riding on the carriage. While I have described and illustrated »the f preferred embodiment of my invention in several of vits specific details, the latter are not to be con strued as limitations of my invention, but merely 20 as examples thereof. Changes and modiñcations obvious to those skilled in the art may be resorted to without departing from the spirit and scope of the invention as deñned in the appended claims. „ means fulcrumed to the structure and connected to the brake. . 3. A skidding apparatus comprising a pair of spaced, braced rails, a carriage disposed for move ment longitudinally of the rails and carrying a guide, a casing between the rails supported by some ofthe braces and coacting with the guide and'having a longitudinal vertical slot and in cluding cam surface engaging means, a brake member housed in the casing beneath the slot and including cam surfaces, and-means for moving the brake kmember longitudinally of the casing ' for emergence through the slot against the car ~ Among the various possible modiñcations, I men riage in response to the coaction of the cam sur tion only the design of the beams as members of faces and their engaging means. variable length and- comprising partly or wholly 4. A skidding apparatus comprising a track, a telescoped parts. _ carriage movable on the track, a slotted housing What I’ claim and desire to secure by Letters within the track and guiding the carriage, a brake Patent is; v30 member guided by the slot of the housing and in 1. In a skidding structure, a support adapted cluding cam portions, means carried by the hous to be disposed at an incline, a, carriage slidable ing for cooperating with the cam portions for on >the support and guided thereby, a brake re moving 'the brake member through the slot during tractable into the support and operable into en movement of the memberlongitudinally of `the gagement with the carriage, and means for op 35 housing, and means for moving the brake mem erating the brake, said brake operating means including a manually actuated element for mov ing the brake longitudinally of the support and ber longitudinally of the housing, NORMAN B. IRVING.