US1426104A - Automatic sash-raising mechanism - Google Patents

Description

A. D. AND E. 1. RAWLINGS.

AUTOMATIC SASH RAISING MECHANISM.

APPLICATION FILED NOV. 6, 1920.

Patented Aug. 15, 1922.

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ARTHUR DANIEL. RAwLING-S, OF CLAPHAM, LONDON, AND ERNEST JOHN RAWTIINGS,

0F BALHAIII, LONDON, ENGLAND,

AUTOMATIC SASH-RAISING MECHANISM.

Specification of Letters Patent. Patented Aug; 15 1922 Application filed November 6, 1920. Serial No. 422,344.

(GRANTED UNDER THE PROVISIONS OF THE ACT OF MARCH 3, 1921, 41 STAT. L, 1313.)

2 '0 all whom it may) concern:

Be it known that we, ARTHUR DANIEL RAWLINGS and ERNEST JOHN RAWLINGS, subjects of the King of Great Britain and Ireland residing, respectively, at 11 Sandmere Roa Glapham, London, S. W England, and 11 Streathbourne Road, Balham, London, S. \V., England, have invented new and useful Improvements in Automatic Sash- Raising Mechanism (for which we have filed applications in Great Britain March 17, 1919, Pat. No. 144,804, and in France March 15, 1920, provisional No. 12,961), of which the following is a specification.

The invention relates to the sashes of motor cars and other road vehicles, railway carriages, and other sliding sashes, and to mechanism by which said sashes are automatically raised.

The invention consists of improvements in the automatic sash-raising mechanism described in the specification of U. S. A. Patent No. 1,154,432, of the present applicants.

The improvements, though they are applicable to other sliding sashes, will, for the sake of brevity, be described in their application to the doors of vehicles.

The sash-raising mechanism described in the above referred to specification consists of a springactuated roller which is rotatably mounted in a case fixed to the'centre of a door and is provided at its ends with fusee-barrels to which are attached and upon which are wound the ends of a cord passing under pulleys supported from the lower part of the sash. In the case of this mechanism the spring-actuated roller is held and released through the medium of a brake acting on the spring-actuated roller.

According to the present invention the automatic sash-raising mechanism is preferably mounted to be movable in and out and this in and out movement is utilized to call into action the means for locking the sash in any raised position .or for releasing the sash and for permittingit to be raised under the influence of the automatic sashraising mechanism.

According to one embodiment of the invention the automaticsash-raising mechanism is secured at the lower ends to a pair of pivoted arms which are adapted to engage the sash and prevent or permit the movement of the same. The particular means forv mounting the sash-raising mechanism' invention the in and-out movement is effected in one direction by means ofsprings and in the opposite direction by manual retractlon. a

In accordance with another embodiment of the invention the springs a-re omitted and both the in and out displacements are effected manually,

In certain cases, for instance when the invention is applied to the sash of a landaulette, cabriolet or coup,'the case containing the sash-raising mechanism maybe secured to the upper ends of arms pivoted to the lower half of a door and be provided on its inner facewith a strip of rubber or like materialadapted to bear against the sash of the door.

Further objects and advantages of the present invention will be set forth in further detail in the accompanying specification and more particularly pointed out in the appended claims. v J

The invention is illustrated by the accompanying drawings.

Of these drawings, Fig. 1 is an elevation of a door provided with the present improvements, viewed from its inner side, parts being broken away. Fig. 2 is a vertical sec.- tion of the same door. Fig. 3 is a fragmentary view, drawn to an enlarged scale, illustrating means for locking the sash of a door when the sash is in its uppermost position.

Fig. 4 is a fragmentary view, drawn to an enlarged scale, illustrating a modification. F ig. 5 is a fragmentary view, also drawn to an enlarged scale, illustrating means for locking the sash of a door when the'sash is in any position and for moving the pivoted arms supporting the case of the sash-raising mechanism.

Referring first to Figs. 1 to 3, 1 isa casing which contains the spring-actuated roller of a sash-raising mechanism of the kind herein referred to and is secured to the lower ends of two metal arms 2 of somewhat narrow width which are mounted for an in and out movement preferably by pivoting them at their upper ends to the upper parts of the side members of the door 3. These arms 2 are provided on their front faces with. strips 4- of rubber or other friction material and are controlled by any suitable arrangement of springs which constantly press the strips 42 against the side margins of the sash 5 of the door 3. Metal plates 6 of greater width than the side members of the frame of the door are secured to the upper halves of said members, and serve both as stops for limiting the inward movement of the piroted arms 2 and as cover plates for concealing said arms. The springs which constantly tend to press the rubber or like strips 41- against the side margins of the sash 5, though they may be of other construction and be otherwise positioned, preferably consist, as shown in Fig. 2, of lengths 7 of blade steel. secured to the stop and cover plates 6 and bearing at their ends against the arms 2. The strips 4- of rubber or like material secured to the pivoted arms 2 are preferably made of lesser length than the arms, say of about half the length thereof, as shown in Fig. 2. A finger-piece consisting of an up standing lug 8 is secured to the centre of the casing 1 so that the latter can he moved inward. This finger-niece 8 maybe replaced by any other device fulfilling the same purpose. 9 is a cord for lowering the sash 5. The cord 9 is preferably adapted to be automatically wound up, when released, by means of mechanism of the kind described in the specification of an application for a U. S. A. patent, Serial No. l22,343 filed November 6, 1920, made by the present applicants.

The improved sashraising mechanism acts and is used as follows:

Normally the rubber or like strips 4 secured to the front faces of the pivoted arms 2 will bear against the side margins of the sash 5. If the sash 5 is to be raised or raised to a further extent the occuiant of the motor car or other vehicle places his forefinger behind the fingerpiece 8 and pulls on same, so drawing the case 1 towards him and drawing the rubber or like strips 4 secured to the front faces of the pivoted arms 2 away from the sash 5. The spring of the sash-raising mechanism will now be free to act, and will raise the sash 5 until such time as the occupant of the car or the like ceases to pull on the finger-piece 8. The sash 5 is lowered by pulling on the cord 9, which has the dual effect of drawing the rubber or like strips i out of contact with the sash 5 and winding up the spring of said mechanism.

According to a modification illustrated by Fig. 4. the strips 4. of rubber or like material, instead. of being secured to the front faces of the pivoted arms 2, are fixed to the front faces of rocking arms 10 of suitable length which are pi-votally mounted at or about their centres on the arms 2. As in the previously described construction the springs controlling the pivoted arms 2 may consist of lengths 7 of blade steel bearing against the arms 2 and secured to the stop and cover plates 6 fixed to the upper halves of the side members of the frame of the door 3.

The improved sash-raising mechanism may be provided with means by which the sash 5 will be locked when it has been raised to its highest position. For this purpose metal strips 11 of a section corresponding to a right-angled triangle are secured to the pivoted arms 2 with their hypothenuses or longest sides facing the sash 5., and projections 12 of corresponding shape having their hypothenuses or longest sides facing the.

inner side of the door are fixed to the bottom of the sash With this arrangement, when the sash 5 has been raised to the high st position the lowermost sides of the projections 12 ilXGfl to the bottom of ,the sash 5 will. be slightly above the uppermost s des of the strips or projections 11 secured to the pivoted arms 2. Consequently when the pivoted arms 2 are released the projections 11 fixed to said arms will come below the projections 12 secured to the sash 5, and the latter will be locked and cannot be pushed down from outside the motor car or other vehicle to which the sasl'i-raisingmechanism is fitted.

The improved sash-raising mechanism may he provided with means by which the sash 5 may be locked in any position. An example of such means is illustrated by Fig. 5 and will iow be described. 13 is a spring controlled two-armed lever which ongages at its upper end. with an opening 14 in the casing 1 and is mounted on a pin 15 supported by a hollow casting 16 which. is secured to the inner face of the door 3 immediately below the centre of the casing 1. 17 is a screw whirl: engages with a tapped hole in the lower arm of the lever 13 and, projecting through an opening formed in the hollow casting 1G, terminates in a milled head 18. The milled head 18 of the screw 17 normally serves as a button, by pressing which the pivoted arms 2 can be moved so as to release the sash and allow same to be raised, but if it is desired that the sash 5 shall be locked in any position the screw 17 is rotated so as to draw the lower end of the two-armed lever 13 towards the opening formed in the hollow casting 16 and firmly press the rubber or like strips 11 on the front faces of the pivoted arms 2 or on the inner faces of the rocking arms 10 against the sash 5. The spring 19 controllingthe two-armed lever 13 may be of a strength manipulation of button .18. Although in the construction herein described the friction strips are preferably mounted upon the arms 2 or equivalent parts, this is not essene tial and they maybe otherwise disposed. Any suitable form of sash engaging means may be provided which will frictionally engage the sash or parts cooperating therewith to retain the sash in adjusted position. The modification in which the casing 1 is secured to the upper ends of arms pivoted to the lower half of a door and is provided with a strip of rubber or like material adapted to bear against the sash of the door will be readily understood from the foregoing description.

Having now described our invention, what we have invented and desire to secure by Letters Patent of the United States is as follows: v I

l. The combination with a door having a sash opening therein and a sash slidable vertically in said opening, of v a pair of spring-controlled arms pivoted at their1upper ends at opposite sides of said opening and provided with friction strips normally engaging said sash, and automatic sashraising mechanism secured to the lower ends of said arms and movable in a horizontal plane for swinging the arms on their pivots thereby to carry the friction strips out of contact with the sash and permit thesame' to be raised. I

2. The combination with a door having a sash opening therein and a sash slidable vertically in said opening, of' a pair of spring-controlled arms pivoted at their up I per ends at opposite sides of said opening, a pair of rocking arms pivoted intermediate their ends on said spring-controlled arms, and provided with friction strips normally engaging said sash, and automatic sash-rais ing-mechanism secured to the lower ends of said spring-controlled arms and movable in'a horizontal plane for swinging said arms thereby to release the sash and permit the same to be raised. a

3. The combination with a door having a sash opening therein and a sash slidable vertically in said opening, of a pair of spring-controlled arms pivoted at their up per ends at opposite sides of said opening and provided with friction strips normally engaging said sash, automatic sash-raising mechanism secured to the lower-ends of'said arms and movable 1n a horizontal plane for swinging the arms on their pivots thereby to carry the friction strips out of contact with the sash and permit the same to be raised, and means for locking said sash in any adjusted position.

4. The combination with a verticallyslidable sash, of automatic sash-raising mechanism mounted to be movable in a substantially horizontal plane .and sash-engaging means movable concurrently therewith into or out of contact with the sash, and means for moving said raising mechanism and sash-engaging means to permit the sash to.

be automatically raised or to be locked any desired position.

5. The combination with a frame-having a sash opening therein and a sash slidable' vertically in said opening, of a pair of arms pivoted at their. upper ends at opposite sides of said opening and provided with means adapted to engage. said sash, automatlc sash-raising mechanism" secured to the lower ends of said arms and movable in a substantially horizontal plane. for

swinging the arms on their pivotsthereby to carry the aforesaid sash-engaging means out of .or into contact with thesash and permit the same to be raise'd '0I.lOCl 6Cl, and means for swinging said arms and raising mechanism.v

6. The combination withi a1 frame'and a i, i I

sash'slidable vertically therein, of apair of arms pivoted on said frame and provided with friction strips adapted to engage said sash, automatic sash-raising mechanism secured to the lower ends oflsaidarms and f movable in a horizontal plane forfswinging "the arms on their pivots thereby to carry arms pivoted on said sash frameandpro vlded W1th'.fI'lQt1OI1 strips. adapted to-en;

gage said sash, automatic sash-raising mechanism secured to the lower ends of saidarms and movable'substantially in a =horizontal plane for swinging the arms on their pivots therebyto carry the frictionstrips out of contact with the sash and permit the same tobe raised, and means for locking saidsash in any adjusted position.

In testimony whereof we have signed our names to this specification-I ERNEST JOHN RAWLINGS.

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