US689970A - Cycle. - Google Patents

Description

No. 689,970. Patented Dec. 3l, I90l.

' C. L. HDRACK.

cYcLE.

(Application led Eeb; 26, 1901.)

(No Model.)

nuunlllllnliupl Unwritten STATES CHARLES L. llORACK,

PATENT @Enrica OF NEW YORK, N. Y.

CYCLE.

SFEGFIGATION forming part of Letters Patent No. 689,970, dated December 31, 191

Application tiled February 26, 1901- Serial No. 48,947. (No model.)

To @ZZ whom, t may concern:

Be it known that I, CHARLES L. HoRAcK, a citizen of the United States, and a resident of New York, in the county of Kings and State of New York, have invented certain new and useful Improvements in Cycles, of which the following is a specification.

My invention refers to vehicles of various kinds, and more particularly to such as bicycles and tricycles which may be propelled by the person seated or mounted thereon or by any suitable motor, biles.

As all the improvements invented by me are especially applicable to cycles and as their construction and operation can be illustrated and explained in connection with cycles,l will in the following specification and in the drawings accompanying the same make reference particularly to cycles, without, however, limiting my invention and its application to this particular class of vehicles.

The objects of my invention are to provide means for neutralizing or reducing the shocks imparted to a cycle owing to the roughness of roads and its meeting with obstructions iu general and to protect the rider against such shocks and reactions therefrom, also to provide suitable means for regulating and adjusting the action of cushioning means employed for such purpose, and also for protecting such cushioning means.

Further objects are to provide suitable means for joining two frame-sections together, so as to make a wheel mounted upon one of said sections movable with reference to the other frame-section.

1 accomplish these and other useful objects by the means hereinafter described, and set forth more particularly in the claims.

My improvements are of particular use in connection with the means usually employed for mounting the front fork of a bicycle within the steering-head forming part of the seatframe, and the accompanying drawings illustrate such parts in their proper relative positions and embodying my improvements.

In said drawings, wherein like letters and figures of reference refer to corresponding parts, Figure 1 is a side elevation of the steering-head and ofa portion of the steering-fork and connecting parts. Fig. 2 is a vertical thus including automot i the steering-head and connecting parts. Fig.

section of the device along the central longitudinal plane ot' the bicycle, while Fig. 3 is a cross-section along line 3 3 in Fig. 2, some portions being broken away. Fig. 4 is asection along line 4 4 in Fig. 2. Fig. 5 showsin vertical section modied means for guiding the steering-post along and around the steering-head. Fig. 6 illustrates a modified detail of the pistou in ground plan, the lefthand portion showing also a section through the piston-rod to which said piston is attached. Fig. 7 is abottom view of portion of 8 is a horizontal sect-ion of means for regulating flow of fluid in the cylinder, and Fig. 9 a cross-section of the upper portion of the main cylinder which contains the piston and of connecting parts. Fig. 1 is drawn to a smaller scale, and Figs. 8 and 9 are drawn to a larger scale, than the remaining figures.

U is the upper main tube, L the lower main tube, and F the front fork, while [I represents the handles and handle-bars.

10 is a cylinder, preferably made integral with and extending upward from crown-head 11, in which travels a piston l2, attached to tubular piston-rod 13. The upper end of said rod is indicated by 14 and is of hexagonal crosssection. 15 is a clutch rigidly attached to the lower end of tube 1G and engages with said hexagon. Tube 1G corresponds with the upper portion ofthe steering-post as now commonly employed, handle-bar stem 17 being inserted in it and clamped to it at 18 and ball-bearings being inserted at 19 between it andthe steering-head 20, allin the usual manner, so as to permit of said tubes 16 and 2O revolving without sliding with reference to each other.

The lower portion of the steering-head is of greater diameter than the upper one, so as to accommodate within it cylinder 10, an annular shoulder 2l being provided where the widening takes place. 22 is a bearingcup screwed to the lower end of said steeringhead, and 23 such a cup secured to cup 22 by screws 21 and studs 25, the latter integral with cup 23.

26 and 27 are sectional bearing-rings detachably secured by screw-thread to the cylinder 10, forming part of the sectional steering-post. Bearing-balls 2S are held at inter- IOO Vals in proper sockets between said rings and are adapted to coact with upright grooves 29 on a bearing-sleeve 30, which along its outer surface contains an annular groove 31 for guiding, in conjunction with cups 22 and 23, balls 32. Cup 23 extends underneath sleeve 30 and bearing- rings 26 and 27 to near the steering-head, so as to guard against dust reachingballs 28. By providing detachable bearing-rings 26 and 271 avoid the necessity of hardening the walls of cylinder 10 to obtain suitable inner bearingsurfaces for balls The bolting together of cups 22 and 23 permits of the ready insertion of balls 28 after the steering-head has been placed in its proper position. f

By providing two separate sets of bearingballs near the lower end of the steering-head and also the sleeve 30, adapted to travel along balls 28 longitudinally with reference to said head and in contact with balls`32, so as to revolve with reference to cups 22 and 23, I provide for easy relative movements of said steering-head and the lower part of the steering-post in all directions.

By making bearings 22 and 23 and also bearings 26 and 27 adjustable toward each otherv I am enabled to adjust balls 32 and 28 toward annular bearing 30 and to thus secure proper 'bearing contact for all said balls without being obliged to change the position or size of the intermediate bearingring 30.

In Fig. 5 a simple form of bearings is shown for performing similar functions, balls 28 being inserted between sleeve or bearing 26 and cups 22 and 23', said balls being permitted to travel lengthwise along sleeve 26' as well as around the same.

32 is a spiral spring interposed between the upper end of-the piston-rod and shoe 33, adjustable by means of screw-thread along a studV 34, which is integral with a cap 35, detachably secured to the crown head. By means ofshoe 33 the time or extent of the initial compression of said spring may be regu- 36 is a perforated bell-shaped attachment integral with the lower end of tube 13 and vcarrying outward-extending arms 37 in engagement with vertical guides 3S on the lower inner circumference of cylinder 10. 39 is a conical spring interposed between said bell- Yshaped attachment and the bottom of said cylinder. Said spring is thus maintained in its proper position, and ample space is provided for it without necessitating the lengthening of the cylinder for the purpose of properly mounting it therein. Upon actuating the handle-bars, and thereby revolving rpiston-rod 13, cylinder 10, owing to the arrangement of guides, as described, will, to-

gether with said piston-rod, be revolved withof the piston and piston-rod with reference to the cylinder be guarded against. As the piston-rod is closely guided within the stui1 ing-box, this contributes materially toward such steadiness, and by placing the guides on the piston and piston-rod as far as practicable from the stuffing-box, and therefore on the side of the piston farthest removed from said stufng-boX, I best guard against lateral displacements of the piston and piston-rod with reference to the cylinder.

Spring 32, as well as glycerin or other suitable liquid further referred to hereinafter, may be introduced through the opening controlled by cap 35. Said cap might, however, be omitted, in which case the spring would have to be introduced before the insertion of the piston in the cylinder, and a suitable plug with adjusting device for the spring might be provided then in the top part of tube 13.

Piston 12 comprises metal disk 40, integral with piston-rod 13 and bell 36, somewhat vless in diameter than the bore of cylinder 2O and having perforations 41 nearest to said piston-4 rod, a cap 42, made of leather', rubber, or other suitable iexible material, and a washer 43, screwed to the piston-rod above said cap. Said washer isprovided with channels 44, curving outward from tube 13, and with wings 45, which on their under sides substan tially conform with the surface of cap 42. Its

upper portion is constructed in the form of a heXagon, carrying a check-valve 46 and its seat, said valve closing a perforation which leads into the interior of tube 13 and held to its seat by a leaf-spring 47. By so placing said valve and its seat upon a ring detachable from tube 13 a much more perfect and convenient adjustment of said valve is possible with reference to its seat. 48 is a screw for confining said washer in its proper position along the piston-rod. 49 is the stuffing-box of cylinder 10. When the front wheel strikes an obstruction, piston 12 will move downward with reference to cylinder 10. This would have a tendency to produce greater compression of the Iiuid underneath the Apiston than above the same if there were not means provided for permitting such fluid to pass to the upper side of the piston. Such means for then equalizing the duid-pressure in the cylinder consist of the iexible outer and inner portions of cap 42, which as the piston moves downward will become so deflected upward as to allow flow of. iuid upward between said cap and the cylinder and also through perforations 41 and between the piston-rod and said cap and from there through channels 44, while when the4 piston rises again the resistance of the fluid above it will force said edges of cap 42 back against the walls of the cylinder and of the pistonrod, so as to again produce tight joints there between said parts. Ribs 45 on washer 43,

as well as the solid portions of said washer IIO between channels 44, will guard against eX- cessive deflections of said cap in an upward direction.

Fluid-pressure within the piston while the latter is moving downward will be further relieved by the opening of check-valve 46, the pressure of spring 47 being only about strong enough to hold the valve to its seat when the Huid-pressures on both sides of it are balanced.

Upon reaction and as the piston moves upward I permit of gradual return of fluid to the under side of the piston through passages provided in the wall of the cylinder, as follows: 50 is a groove of substantially square crosssection on the inner surface of the cylinder, its sides being made to conform to the curvature of the bore of the cylinder and it extending upward substantially as far as the piston can travel and downward below the travel of said piston. Into this slot lits a stud 5l of corresponding general cross-section ,provided, however, along three of its sides with grooves 52, 53, and 54, which are of different crosssections. Any one of these grooves when placed in a position facing the piston-rod will furnish a return-passage for the fluid directly adjoining the travel of the piston. By alternately placing different such grooves in the proper operative positonvthe area of the return-passage to be so provided can be properly modified, while when the smooth side of the stud is turned inward no return-passage will then exist in that part of the cylinder. The lower portion of said stud comprises around shank 55, fitting closely a stuffing-box 56 in the bottom of the cylinder. Said shank is provided with a head 57, having two channels 58 and 59 at right angles to each other and to the direction of the stud. 60 is a pin engaging with one of said channels and with lugs 6l 6l, extending downward from the bottom of the cylinder in such manner that thereby either side of stud 5l may be held facing the piston. The upper end of said stud is pointed and engages with a corresponding recess in the wall of the cylinder for thepurpose of aiding in conning it in its proper position. In Fig. 8, which shows a section through said stud at point 8 in Fig. 2 looking downward, it appears that the grooves therein are shallower below than above, thus providing for a larger return-passage when the piston reaches its elevated position, thus allowing of freer play of the piston in the upper part of the cylinder. Said grooves may be enlarged either gradually or abruptly.

62 and 63 are two annular flanges extending downward from the lower disk of the stuffing-box, each being provided with a series of perforations, 64 being the perforations in the inner flange, and 65 those in the outer flange, the latter perforations communicating with an annular groove 66 in the wall of the cylinder. 67 is a ring made of a porous and preferably compressible substance, such as felt, which contains a series of minute channels closely fltting in between said flanges and held in position and compressed as far as may be desired by means of an annular disk 68, secured by screw-thread to flange 63. From groove 66 a passage 69 extends downward within the wall of the cylinder, out of which leads a slanting passage 70, communicating with the lower portion of the interior of the'cylinder.

71 is a screw-stud extending upward into the lower enlarged portion of passage 69 through a suitable stuffing-box 72. Said stud is provided with a groove 7 3, which by turning the stud may be either brought in full communication with passage 70 or may be made to communicate with it only to a smaller extent or not at all, as may be desired.

When the cylinder is free from liquid or when only a small amount of the latter is maintained therein, it will generally be sufficient to depend for the return flow of air upon porous packing 67 between flanges 62 and 63 and passage 69, connecting therewith. To properly adjust the return flow of air in that case, the packing, if felt, sponge, or similar substance be employed, may be compressed by means of ring 68 to such an extent as will provide for air-passages through the same and between perforations 64 and 65 sufficient to permit of proper return iiow of fluid as springs 32 and 39 are reacting. As the means for adjusting the compression ofring 67are notreadily accessible, I utilize slotted stud 71 for perfecting the adjustment with reference to the return flow of air through passage 69. Stuffing-box 72 will prevent escape of fluid from the apparatus around the shank of screw-stud 7l in same manner as stuffing-box 56 will prevent such escape around shank 55.

As the capacity of cylinder lO is necessarily limited, it is very important that no air be permitted to pass downward around the edges of cup 42 whenthe piston is ascending and, further, that the flow of fiuid through valve 46 and along the return-passages above described be closely regulated when the fluidpressure above the piston exceeds that underneath the same, and as the flow of liquid is much more easily controlled than that of air I prefer at all times while the piston is ascending to maintain a body of liquid, preferably glycerin, oil, or the like, above said piston and in the operative passage of stud 5l, as well as above valve 46. In Fig. 2 the levels of liquid so employed for the purposes stated are indicated by O O. Said levels under otherwise equal conditions may of course be varied by increasing or decreasing the quantity of oil in the cylinder. By placing guides :S7-and 38 Within that part of the body of the cylinder which contains the oil I provide for said guides a lubricant which is continuously in contact therewith while the piston is reciprocating within the cylinder, and I thus make it possible to employ guides which fit each other very closely, thereby securing very steady working of the device,

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.dinal movements.

particularly while the handle-bars are being actuated, Without interfering with the freedom of said guides in their relative longitu- Where liquid is so ernployed in comparatively large quantities, and particularly where such liquid is of considerable consistence, I for the-purpose of passing the same from the top to the bottomiof the piston make use of one of the grooves' 52, 53, and 54:, the deeper grooves being used when quicker reaction of springs 32 and 39 is desired, and by making the upper portions of said grooves deeper than the lower ones it is possible to permit the piston to complete its upstroke more quickly than would otherwise be the case in view of the heavy compression of air that is apt to then take place above the piston.

73 represents balls,which together with cup 74E, attached to lthe piston-rod, and cup 75,

detachably and adj ustably secured by screws 76 to the interior of shoulder 21, form a ballbearing which prevents upward movement of the piston-rod within the steering-head and, besides, serves to steady said piston-rod.

By placing -the cushioning means in the lower portion of the steering-head and underneath its shoulder 21 I provide for partly neutralizing shocks imparted to the front Awheel before they can be imparted to the seat-frame.

In Fig. 6 I show strengthening-ribs 40X, attached to and made integral with the outer portion of a flexible cup 40', forming part of the piston 12', instead of having ribs attached to washer 13, aslshown in Fig. 2.

I do not wish to confine myself to the detailsl herein shown and described, as it will readily be seen that the same might be varied materially without departing from the spirit of my invention.

Having shown and described and claimed in other applications for Letters Patent now pending in the Patent Office thebroader features ofthe cushioning means herein set forth, I do not claim the same in this application.

I claim*- l 1. In regulating means for cushioning devices for cycles, the combination with a cylinder with suitable stuffing-box and a piston and piston-rod, the latter adjusted to slide through said stuffing-box, of guides rigidly connected with the piston and piston-rod on that side of the piston which is farthest removed from the stuffing-box, and guides on the interior of the cylinder adjusted to coact with aforesaid guides.

2.. In regulating means for cushioning devices for cycles, the combination with a cylinder, of apiston and piston-rod adj usted to travel therein, longitudinal guides provided Yin the interior of the cylinder, guides rigidly connected with said piston-rod and piston and adj usted to coact with aforesaid guides, and

a spring for actuating said piston, the guides being placed around said springs.

3. In a cycle, the combination with a cylthrough sai d stu ffing-boX ,A longitudinal guides provided in the interior of the cylinder and guides rigidly connected with said piston-rod and pistonand adjusted to coact with aforesaid guides, and a spring for enforcing relative sliding movement between such coacting guides.

4. In a cycle, the combination with a head, of a post comprising an upper and a lower section capable of sliding one with reference to the other and of revolving within said head, the lower section carrying one of the wheels, cushioning means for yieldingly resisting relativelongitudinaldisplacements of the sections of said post, and means for preventing longitudinal displacement of the upper section of the post with reference to said head.

5. In a cycle, the combinationwith ahead, of a post comprising two sections capable of sliding one with reference to the other, cushioning means for yieldingly resisting such sliding movement, said post being adapted to revolve with reference to said head, a set of ball-bearings between said head and a relatively revoluble section of said post, and an- -other set of ball-bearings between said head and a section of said post adapted to travel longitudinally with reference to said head.

6. In a cycle, the combination with a-tubular head comprisingan upper and a lower portion'one of said portions having a larger interior diameter than the other portion and a shoulder between said portions, of a telescoping post having a section capable of revoluble displacement only with reference to said head, two sets of ball-bearings between said post and said head, and ball-bearings inserted between said shoulder and said section and between aforesaid ball-bearings.

7. In a cycle, the combination with a tubular head, of a telescoping post having a section capable of revolving only with reference to said head and having another section capable of sliding and of revolving with reference thereto, of one set of ball-bearings between the former section and said head and another set of ball-bearings between the latter section and said head, and a third set of ball-bearings between said head and said post and between aforesaid sets of ball-bearings.

8. In a cycle, the combination with two frame-sections, one of said sectionsA being adapted to travel longitudinally and to revolve with reference to the other section, of aset of ball-bearings between said sections, guides for said ball-bearings adapted to guide the balls longitudinally with reference to` one of said sections, another set of ball-bearings between said sections, and a guide for guiding the balls of such other set around one of .said sections.

9. In a cycle, the combination with a tubular head comprising an upper and a lower portion one of said portions having a larger exroo IIO

terior diameter than the other portion and a shoulder between said portions, of a telescoping post having a section capable of revolving only with reference to said head, a set of ball-bearingsbetween said section and said head, and means for detachably securing a bearing-cup of said set to said shoulder, the other bearing-cup of said set being secured to said telescoping post.

10. Ina cycle, the combination with two frame-sections, one of said sections being revolubly mounted upon the other section and also adapted to travel longitudinally with reference thereto, of two sets of ball-bearings between said sections,guides containinggrooves adapted toguide the balls of one of said sets longitudinally with reference to one of the sections, and guides for guiding the balls of the other set around one of said sections.

11. In a cycle, the combination with two frame-sections, one of said sections being revolubly mounted upon the other section and also adapted to travel longitudinally with reference thereto, of two sets of ball-bearings between said sections, two cups between which the balls of one of said sets are guided longitudinally with reference to one of said sections, and a third cup for jointly with one of aforesaid cups guiding the balls of the other set around one of said sections.

12. In a cycle, the combination with two frame-sections, one of said sections being revolubly mounted upon the other section and also adapted to travel longitudinally with reference thereto, of two sets of ball-bearings between said sections, two cups between which the balls of one of said sets are guided longitudinally with reference to one of said sections, and a third cup for jointly with one of aforesaid cups guiding the balls of the other set around one of said sections, the cup in contact with both sets of balls being capable of sliding longitudinally with reference to one of the sections and of revolving with reference to the other section.

13. In a cycle, the combination with two frame-sections, one of said sections being revolubly mounted with reference to the other section and also adapted to travel longitudinally with reference thereto, of an inner and an outer set of ball-bearings between said sections, two cups between which one of said sets is guided longitudinally, and a third cup for confining the other set in contact with one of aforesaid cups, said third cup attached. to one of said sections projecting underneath the other two cups and toward the other framesection.

olubly mounted upon the other section and also adapted to travel longitudinally with reference thereto, of a continuous bearing having an annular guiding-surface and a multiplicity of longitudinal guiding-surfaces, balls in engagement with said annular and longitudinal guiding-surfaces, a bearing adjustable with reference to said annular bearingsurface, and another bearing adjustable with reference to Asaid longitudinal bearing-surfaces.

16. In a cycle, the combination with a tubular head, of a sectional post adapted to revolve therein, said post comprising a cylinder forming its lowersection and a piston with piston-rod forming its upper section, a handle-bar stem with handle-bar xedly secured to said piston-rod, means for preventing relative longitudinal displacement between such upper section and the head and means for guiding such lower section lengthwise with reference to such head.

17. In a cycle, having asectional frame, the combination with a telescoping member on one frame-section revolubly mounted with reference to a member on anotherframe-section, such telescoping member comprising a cylinder and a piston with proper piston-rod operating therein, of a bearing with suitable groove attached to the piston-rod, a bearing groove being also provided on said relatively movable member on the other frame-section, and balls interposed between said grooves and adapted to permit relative revoluble movement and to prevent relative lateral movements and relative longitudinal movement in one direction of said piston-rod and said member on the other frame-section.

18. In a cycle, the combination with the steering-head, of a sectional telescoping steering-post adapted to revolve Within said head, such steering-post comprising a cylinder, a stuffing-box, a piston and a sectional pistonrod adapted to connect at its upper end with the handle-bar stem, and a clutch between the upper portion of the piston-rod and that portion which passes through the stuffingbox.

19. In regulating means for cushioning devices for cycles, the combination with a casing, of a piston adapted to travel therein, a passage being provided between said piston and said casing and adjoining the path of said piston, and means for regulating the operative cross-section of such passage.

20. In regulating means for cushioning de- IOO IIO

vices for cycles, the combination with a cylinder directly adjoining the path of the piston and along its path and a grooved stud along said groove for adjusting the operative cross-section of said groove.

22. In regulating means for cushioning devices for cycles, the combination with a cylinder, of a piston adjusted to travel therein, a groove being provided in the Wall of the cylinder directly adjoining the path of the pislton, and a stud inserted in said groove and filling portion of its cross-section only, the

portion of said groove not occupied by saidA stud being made of varying cross-sections along dierent parts of the path of the piston.

23. In regulating means for cushioning devices for cycles, the combination with a cylinder, of a piston adapted to travel therein, a passage being provided in the wall of the cylinder along the path of the piston, a stud eX- tending along portion of said passage for regulating the operative cross-section of said passage, and means outside of the cylinder for adjusting the position of said stud.

24:. In regulating means for cushioning devices for cycles, the combination with a casing, of a piston adapted to travel therein, a passage being provided between the two compartments formed on both sides of the piston, means for partly closing said passage and comprising a stud extending outside of the casing, and a stuffing-box around said stud.

25. In regulating means for cushioning devices for cycles, the combination with a casing, of a piston adapted to travel therein, a

groove being provided in the wall of the cyl` inder directly adjoining the path of the piston, a stud of irregular cross-section inserted in said groove and filling portion of its crosssection only, and means for alternately holding said stud in varying positions with reference to said groove.

26. In regulating means for cushioning devices for cycles, the combination with a casing, of a piston adapted to travel therein, a stud having a depression upon its circumference inserted in said groove and filling a portion of its cross-section only, and means for alternately holding such depression in and out of communication with the interior of the casing.

27. In regulating means for cushioning devices for cycles, the combination with a casing, of a piston adapted to travel therein, a stud having a depression upon one side of its circumference and having another side conforming in its configuration with the circumference of the piston, and means for alternately holding such different sides of the stud in positions facing the piston.

28. In regulating means for cushioningdevices for cycles, the combination with a cylinder, of a piston adjusted to move therein, such piston comprising two rigid disks provided with perforations and a disk having an outer and an inner flexible edge secured between aforesaid disks, such inner flexible edge being placed opposite the perforations in aforesaid disks.

29. In regulating means for cushioning devices for cycles, the combination with a cylinder, of a piston adjusted to move therein, j

between it and the piston-rod and the cylinder in one direction, and means for attaching said flexible disk to said perforated disk.

30. In regulating means for cushioning devices in cycles, the combination with a cylin der, of a piston adjusted to move therein, such piston being adapted to permit flow of fluid around its edge in one direction and to resist such flow in the opposite direction, a passage being provided for permitting flow of fluid from one side of the piston to the other side while the piston is resisting flow around its edge, and means for ixedly adjusting the operative area of such passage.

3l. In regulating means for cushioning devices in cycles, the combination with a cylinder, of a piston with a tubular piston-rod, whereby two compartments are formed in said cylinder, a passage being provided between said compartments through the wall of said piston-rod, and an automatic yalve for controlling the iiow of fluid through said pas-- sage, a passage being also provided for permitting return flow yof fluid while said valve is in its restricting position.

32. Regulating means for cushioning devices in cycles, comprising a cylinder and a piston with a tubular piston-rod, whereby two compartments are formed in said cylinder, a passage being provided between said compartments laterally through the wall of said piston-rod, a ring detachably secured to the circumference of said rod, and a valve mounted upon and having its seat upon Said :ring for regulating the flow of fluid through said passage.

33. Regulating means for cushioning devices in cycles, comprising a cylinder and a piston with a tubular piston-rod, whereby two compartments are formed in said cylinder, a

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said passage, and means for regulating the position of said valve, said valve and regulating means being both mounted upon said.

piston-rod.

34. In regulating means for cushioning de-V vices for cycles, the combination with a casing comprising two compartments, of a wall movable with reference to said compartments, means for actuating said wall whereby Huid is forced from one compartment into the other compartment, a valve for permitting flow of fluid between said compartments in one direction only, a passage being provided above the travel of said movable wall for permitessere 'ting flow of fluid between said compartments when the valve is in its restricting position, and a porous substance inserted in said pas7 sage above the travel of said wall.

85. In regulating means for cushioning devices for cycles, the combination with a casing comprising two compartments, of a Wall movable with reference to said compartments, a passage being provided between said compartments for permitting flow of fluid between the same, a porous substance inserted in said passage, and means for regulating the operative cross-section of tbe portion of said passage not directly obstructed by said porous substance.

36. In regulating means for cushioning devices for cycles, the combination with a casing comprising two compartments, of a Wall movable with reference to said compartments, a passage being provided between said compartments for permitting flow of Huid between the same, a compressible porous substance inserted in said passage, and means for varying the degree of compression imparted to such porous substance.

Signed at New York, in the county of New York and State of New York, this 25th day of February, A. D. 1901.`

CHARLES L. HORACK.

Witnesses:

WM. J. PARSONS, WM. SHAW.

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