US1489548A

US1489548A - Window-operating mechanism

Info

Publication number: US1489548A
Application number: US661002A
Authority: US
Inventors: Roberts Benjamin Williams; Hodson James Ernest
Original assignee: Individual
Current assignee: Individual
Priority date: 1923-09-05
Filing date: 1923-09-05
Publication date: 1924-04-08
Anticipated expiration: 1941-04-08

Description

April 8 1924. 1,489,548

B. W. ROBERTS ET AL v WINDOW OPERATING MECHANISM 2 Sheets-Shea BENJAMIN W. 20135 2, JAME-s E. H00so Filed Sept. 5

Patented Apr. 8, 1924.

UNITED STATES 1,4s9,54s PATENT OFFICE.

BENJAMIN WILLIAMS ROBERTS AND JAMES ERNEST HOIJSON, OF dHESTER, ENGLAND.

WINDOW-OPERATING MECHANISM.

Application filed September 5, 1923. Serial No. 661,002.

To all whom it may concern:

Be it known that we, BENJAMIN WIL- LIAMS Ronnnrs and JAMES ERNEST HODSON, subjects of the King of Great Britain, residing in Chester, in the county of Chester, England, have invented certain new and useful Improvements in Window-Operat ing Mechanisms, of which the following is a specification.

This invention relates to window. ope-ratin mechanisms and is particularly applicable to the windows of vehicles such as closed carriages, railway cars and automobiles, and the object is to provide easily manipulated means for moving such windows into the closed, open or partly open positions and for retaining them in said positions, and, in the preferred form, to so arrange such means that the window may be opened, or closed, or partly opened by the use of the one hand only. The mechanism comprises ;a lever actuated by a spring through a compensating cam so shaped that a roller on the end of the lever resses on the under edge of the window wlth a substantially uniform upward force somewhat greater than that necessary to counter-balance the weight of the window and to overcome friction; and means adapted by frictional engagement of the window to retain it in the closed, open, or partly open position.

The invention is illustrated in the accompanying drawings, in which Figs. 1 and 2 show the general arrangement, Fig. 1 bein an inside elevation of a hinged door suitable for a vehicle and fitted with a window, the inside lining-of the door being omitted to show the mechanism. Fig. 2 being a side elevation in section on the line II, II of Fig. 1. Fig. 2 is a fragmentary section to an enlarged scale on'the line III, III of Fig. 1.

Figs. 3 to 12 show the preferred form of retaining device; Fig. 3 being an elevation viewed from the inside, and Fig. 4 a corre sponding plan. Figs. 5, 6 and 7 are respectively, an end elevation, a section on the line VI, VI of Fig. 3, anda section on the line VII, VII of Fig. 3. Fig. 8 is a view similar to Fig. 7 but shows the pivoted member tilted by the cam-handle so that the roller is clear of the window. Figs. 9 and 10 are respectively, a fragmentary end elevation and a fragmentary plan of the ratchet and paw]. Fig. 11 is a fragmentary rear view.

showing the handle cam operated. Figs. 9 and 10 are to an enlarged scale.

F lgs. 12 and 13 which are an elevation, and a section on the line XIII, XIII-show a modification of the pivoted member.

A is the doorof the vehicle com-prising the usual door framing, in the vertical members a of which grooves a. are formed in which the window B slides freely. In the example illustrated the window is of the framelem type and consists of a sheet of glass of suitable thickness, the edges of which are ground to a true and smooth shape so as to slide in the grooves a. The window is fitted with an operating grip 12 secured near the top edge by cementing, or 1n any other convenient manner. The door A is fitted with the usual inside and outside linings a and a the outer lining being usually polished and the inner lining upholstered.

lVithin the space formed below the window opening and between these two lininlgs a lever C is located, which lever is fulcrumed on a spindle 0 carried in a bracket D secured in any convenient manner to the 1 inside of one of the vertical members a of the door frame. The free end of the lever C' carries a. roller 0 pivoted on a stud c which roller has a peripheral groove 0 which is adapted to engage with and roll on the under horizontal edge 6 of the window B. Attached to the lever C and pref erably made integral with it is a cam c, the periphery of which is shaped as hereinafter described to take a flexible tension member D, which may conveniently be a roller chain as shown. This chain at the end al is connected to the lever through a hook 0 adapted to engage the appropriate link. The member D is carried round a guide roller say a sprocket wheel E carried on a bracket e secured to one of the door frame members a and the end (Z of the chain is connected to one end P of a spring F which may conveniently be a cylindrical spiral spring the other end f of which is anchored to a hook G, the shank g of which is screwed and fits the screw-threaded bore of a bracket 9 secured to the side member a of the door frame.

The upward vertical pressure exerted onthe slot the tension in the sprin and the shape of the peripheral surface 0 the cam c, and the latter is so shaped that it com ensates for variation in the inclination of t e said line, and for variation in the tension of the s ring F, so that the combination transmits for holding the window in its closed, open orintermediate position, comprises, accordin to one modification, a clam ing member pivotally attached to a fixe member K attached by screwing to the horizontal surface of a recess L formed in the cross member a of the door frame. The pivoted clamping member H has two side cheeks 72. having 00-- axial holes fitting pivot pins h screwing into screw-threaded holes formed in the corre s onding side cheeks k of the fixed member 1?. At its central portion the clamping member H has a depending art h the lane of which is located some istance away aterally from the pivoting axis; and a facing to co-act with a cam is formed on the art it, such facing is conveniently formed y roviding a slot h in the member 72. the sur ace of the bottom edge of the slot forming such facing h. Oscillatory movement is imparted to the pivotal member H about the pins h by means of a handle-cam J havlng a cam surface 3' formed at the end of its boss 51', the bore 7' of which fits a stud or bolt I screwing into a screw-threaded hole k formed in the boss k of the fixed member K; the bore of J is enlarged at y" and a spring is inserted between the shoulder of the enlarged bore and the head i of the stud I. This screw prevents any rattling of the handle cam on the stud. Springs M initially compressed are interposed between the pivotal member H and the fixed member K, which springs are retained in place by ribs h and k formed on the respective members and tend normally to press the top portion of the pivotal member towards the window. When the cam surface 7' is horizontal it bears on the uhpper face it of the lower edge of 5 in the part 713, and limits the pivotal movement of the clamping member H towardsthe window; the upper edge of the slot k bears on the boss 7' of the handle cam J and so limits the pivotal movement of the clamping member H away from the window. The clamping member H is provided with a roller N of vulcanized rubber or the like, the journals n of the roller fitting bearings formed in the cheeks it formed on the clamping member. One of the journals n at one end extends through the bearing and has keyed to it a ratchet n fitted with a pawl n pivoted on thestud .n carried from the member H and provided with a spring n"; the pawl and ratchet are so arranged that rotation of the roller N in that direction in which the side nearest the window turns 11 wardly is prevented, whilst free rotation in the opposite direction is permitted. Before the pivotal member reaches the limit of its pivotal movement towards the window defined by the engagement of the cam 7' when horizontal with the face h of the slot, the roller N makes contact with the window, being pressed into contact therewith by the springs M.

The action of the spring F and lever C which as stated always tend to raise the window is prevented from raising the window when the roller N is in spring-pressed contact with the window; the window is therefore retained in its closed, full-open or any partly-open position in which it may be moved. Opening movement, however, may be imparted to the window by simply ressing the catch 12 downwardly, the rol er N then rotating in its bearings. Should it be desired to raise the window, the cam handle J is operated so that the cam j by engagement with the face h", pivots the member H away from the window, and so withdraws the roller N from contact with the window, whereupon the spring F and lever C raise the window. It will be seen that the operation of closing the window, or of opening it, may be performed by the passenger by the use of one hand only.

In cases where there is no objection to the employment of two hands to close the window the retaining device may be modified by the omission of the roller N, and its ratchet and pawl from the clamping member H and the substitution for it of a pad h (see Figs. 12 and 13) of rubber or the like fixed in a longitudinal groove it formed in the nose of the member H. In this modification the construction in other respects is similar to that described in reference to Figs. 3 to 11, and in Figs. 12 and 13 the corresponding parts are indicated by the same reference letters distinguished by an accent mark.

Having now particularly described and ascertained the nature of our said invention, and in what manner the same is to be performed, we declare that what we claim is:-

1. In an improved mechanism for operating windows, in combination;-a slidable window; spring actuated means adapted to press the window upwardly with a substantially uniform force sufiicient to overcome the weight of the Window and its resistance to sliding; a clamping member adapted to engage with the window; a fixed member to from the window in opposition to the said spring means.

2. In an improved mechanism for o crating windows, in combinat1on;a shdable window; a lever pivotally fixed at one endand at the other end provided with means engaging with the under side of the window; a spring fixed at one end; a flexible member attached at one end to the sprmg and at the other 'end to the lever; a cam attached to the lever and over the cam surface of which the flexible member passes, the distance of successive points on the cam surface from the centre of motion being such that there is produced at the free end of the lever, as a result of the pull of the spring on the lever, a substantially uniform upward pressure on'the window suflicient to overcome the weight of the window and its frictional resistance to sliding; a clamping member adapted to engage with the window; a fixed member to which the clamping member is pivoted on an axis parallel to .the plane of the window; spring means pressing the clamping member into contact with the win dow; and means adapted to move the clamping member away from the window in 0pposition to the said spring means.

3. In an improved mechanism for operating windows, in combination ;--a shdable window; spring actuated means adapted to press the window upwardly with a substantially uniform force sufiicient to overcome the weight of the window and its resistance to sliding; a clamping member; a fixed member to which the clamping member is pivotally attached on an axis parallel to the plane of the window; sprin means adapted to press the clamping mem r into contact with the window; and means for moving the clamping member in opposition to the spring means, comprising a handle-cam pivotallyv mounted on one of the said members so that the cam engages the other said member.

4. In an improved mechanism for operating windows, in oombination;a shdable window; spring actuated means adapted to press the window upwardly with a substantially uniform force suflicient to overcome the weight of the window and its resistance to sliding; a clamping member adapted to engage with the window; a fixed member to which the clampingI member is pivoted on an axis parallel to t e plane of the window; an engaging surface on the clamping member disposed laterally relatively to the pivoting axis; a handle-cam pivotally attached to the fixed member, and adapted, by eng ement with the said surface to turn 51a clamping member away fromthe window.

5. In an improved mechanism for operat- 7 ing windows, in combination;a shdable window; sprmg' actuated means adapted to press the window upwardly with a substantially uniform .force sufiicient to overcomethe welght of the window .and itsresistance to sliding; a clamping member; a fixed- I member to which the clamping member is pivotally attached on an axis parallel to the plane of the window; spring means adapted to turn the clamping member about its pivot towards the window; means ada ted to retract the clamping member from t e window in opposition to the said s ring means; and means on the clamping evice adapted, when the latter is not retracted, to

retain the. window in position but whichyield and permit movement of the window inone'directionwhen force acting in that directionis applied to the window.

6. In an improved mechanism for operating windows, in combination ;a slidable window; spring actuated means adapted to press the window upwardly with a substantially uniform force suificient to overcome the weight of the window and its resistanceto sliding; a clam ing member; a fixed member to which t e clamping member is pivotall attached on an axis parallel to the plane 0 the window; a roller on the clam ing member rotatable about an axis par e1 to the plane of the window and adapted to enga c with the window; means for preventing e rotation of the roller in the one direction; spring means adapted to turn the clamping member about its pivot and press the roller into contact with the window; and means adapted to move the clam ing member and said roller away from t e window in opposition to the said spring means.

7. In an improved mechanism for operating windows; in combination ';-a shdable window; spring actuated means adapted to press the window upwardly with a substantially uniform force suflicient to .overcome the weight of the window and its resistance to slidin a clamping member; a fixed member to w 'ch the clam ing member is pivotally attached on an ax1s parallel to the plane of the window; a roller on the clamping member rotatableabout an axis parallel to the plane of the window and adapted to engage with the window; a ratchet on the said roller; a spring controlled pawl on the clamping member adapted to prevent rotation of the ratchet and roller in the 'one direction; spring means adapted to turn the clamping member about its ivot and press the roller into contact with t e window; and

means ada ted to move the clam ing member and said roller away from t e window in opposition to the said spring means.

8. In an improved mechanism for operating the windows of vehicle doors, in combination ;--a door; a window slidable therein a lever located .in the door space laterally clear of the 'adjustably fixing one end of the spring to r the door frame; a flexible member attached at one end to the spring and at the other.

end to the lever; a cam attached to the lever and over the cam surface of which thefiexible member passes, the distance of successive points on the cam surface from the cen-.-

tre of motion being such that there is produced between the roller and the under side of the window, as a result of the pull of the spring on thelever a substantially uniform upward force sufficient to overcome the weight of the window and its'resistance to sliding; a clamping member; a fixed mem-' berscrewed. to the door frame, to which member the clamping member is pivotally attached on an axis parallel to the plane of the window; a roller mounted on the clamping member on an axis parallel to the plane ofthe window and adapted to engage the window; means for preventing the rotation of the roller in a direction corresponding with the upward movement of the window; spring means pressing the clamping memher so as to force the roller into contact with v the window; and means for moving the clamping member and the roller away from the window inopposition to the said spring means.

9. In an improved mechanism for operating the windows of vehicle doors, in combination ;a door; a window slidable therein; a lever located in the door space laterally clear of the plane of sliding of the window; one end of which lever is mounted on a pivot carried from the door; frame; a

plane ofsliding of the window,

roller on the freeend of the lever engaging with the underside of the window; a spring; means for adjustably fixing one end of the spring to the door frame; a flexible member attached at one end to the spring and at the other end to the door; a cam attached "to the lever andtover, the cam surface of which the flexible member passes, the distanceof successive points on the cam surface from the centre of motion being such that there is produced between the roller i and the under side of the window, as a result of the .pull of the spring on the lever, a

substantially uniform upward force suflicientto overcome the Wei ht of the window and its resistance to sli ing; a clamping member; a fixed member screwed to the door frame, to which member the clamping mem beris pivotally attached on an axisparallel to the plane of the window; a roller mounte'd on the clamping member on an axis parallel to the .plane of the window and adapted to en age the window; means for preventing t e rotation, of the roller in a direction corresponding .withthe upward movement of the window; spring means pressing the clamping member so as to force the roller into contact with the window; a web attached to the clamping member the plane of which web is disposed laterally of the pivoted axis, said web being slotted to form an engaging surface; and a handle-cam-the cam portion of which is located in said slot and engages with the said surface.

;In testimony whereof wealfix our signatures in presence of two witnesses.

BENJAMIN- WILLIAMS ROBERTS. JAMES ERNEST HODSON.

Witnesses:

J. E. LLOYD BARNES, JAMES C. 'MoRAn.