US5097A - N peters photo lithogr peer wasringto d o - Google Patents

Description

'n' ky i ll o '1 lnrn um umu nrnr N Pa S . r s A um nnurnnnr'n 1m JM J N. PETERS. PHOTOLITHOGRAPHER. WASHINGTON. I3v C4 STATES: 1'-

EBENE. carri, or BOSTON, MassaoHUsE'rTs.

WINDOWfBLIND,

.Snscats of Letters Patent N- aQe?, elated May 1, 184.7., j

yTo all whom 2f may @www f Be it known that I, EBENEZER GATE, of Boston, in the county of Suffolk and State of Massachusetts, have invented a new and useful Improvement in Iron Elevating Folding Vindow Shutters orV Blinds now in General Use for Store-Fronts, ttc.; and` I do hereby declare that the nature of the same is fully described and represented in the following specification and accompanying drawings, letters, figures, and references thereof.

Of the said drawings Figure l denotes an elevation of my improved elevating, folding shutter or blind. Fig. 2, is a vertical, central and transverse section, and Fig. 3 is a horizontal section thereof. Fig. 4 yis a vertical and transverse section taken through one of the locking bars to be hereinafter described. y

There arene-w in common use in various cities, both in this country and in Europe, elevating, folding window shutters, or blinds,` such as are described or mentioned in the Letters Patent granted inthe United States, on the eleventh day ofApril, A. D. 1842, to Arthur L. Johnson of Baltimore Maryland. They consist of a series of rnetallic or wooden slats, united together at their edges by hinges, land made at their ends to rest and travel up and down, in parallel grooves, or guides applied to the window frame or other convenient part of a building. They are raised and depressedby means of a windlassbarrel, over which they are wound and unwound. My invention is an improvement thereon, or combination therewith of a cert-ain peculiar mechanism, the purpose of which I shall hereinafter describe. Y

In the aforementioned drawings A de notes a window blind, composed of a series of metallic or wooden slats a, a, &c., arranged, lapped over one another, and united together by hinges b, b, &c., as seen therein. The blind so made has its side, or vertical edges placed in vertical guide passages c, 0, made or formed in the window frame. It is connected to a horiontal shaftor barrel B which is disposed over the blind, and revolves in suitable bearings properly affixed to, or made in the window frame. A balancing weight C is suspended to a pulley D applied to the shaft or barrel, the object of the said weight being to balance the window blind. The elevation or depression o-f the vmay require.

119011 .one 6nd 0f a .Short horizontal; Shaft F, e beveled gearG Q11 the 'ether end, another. beveled gear H iXed upon a vertical shaft I bind'is erected by man, @fa-@m1, E Hxd 1 andv engaging with the gear G, a beveled f gear K, on the top of a vertical shaft Land another beveled gear L, fixed upon the shaft of the wndlass barrel, and engaging v`with the gear K, the Whole being arranged, and made t0 Operate together Seen in the IlgS- .other proper mode ,Of effecting a rotation 0f the Windlass barrel may be adopted,

. 'Ihe window shutter or blind so constructed and operated, I consider as makingno part of my invention, which is as follows; Y i

To the rear-side of the blind, and near'each vertical edge thereof, andV within a vertical chamber d, formed in rear thereof, and in the window frame, I apply one 0f two vertical bars e, e, vmade to-extend from top to botten of the blinder therabout', as seen in Fig. 4. Each of. said bars may be pressed forward toward, and against the blind,"by ,one or more Sprllgsr f, f, 01' other Suit-able contrivances properly applied to it, and aeting againsttheback of chamber d. It (the bar) may have if desirable any suitable number of small pins, or studs g, g, inserted in, and made to project from its front face and to enter holes Ll, h, v(corresponding in size, and in their distances apart to them) made through the slats or` Window blind; These studs should be of such length, that when the vertical boltbar is forced forward so as to rest against the blind, and pressA it through the blind, and'also so that on the bolt bar being vmoved back or retracted,

shortdistance, they lwill pass entirely out of g the holes of the blind, and leave it to be freely raised up or lowered down as occasion The horizontal width of the chamber should correspond with that of the bolt bar, as seen in Fig. 3, that is to say,

t-he bar should be made to fit it so closely as not to have any injurious lateral movement, and still be able to move freely back andforth, or toward and from the blind.

I make t-he distance or space between the front plate m, and gle front edge of the side plate y. of the cham. er d, much greater than has heretofore been customary, that is to say I-make the said space of a width about three times the thickness of that part of the blind which moves init, and I do thisin'- order to prevent any rustor oxidation, or

dust, which frequently lodges betweenV the slats, and the sides of the saidspa'ce or' groove in which they move-from operating.

so as to cause any binding or friction ofthe blind when raised or lowered.v 4In fact the4 spaces or grooves c', c, within which the ends of the blind move, should be made of suchV width, that theblind, when resting centrally in `them may remain freely, outof Contact lwith the sides thereof. VThen the bars e, e',

are allowed to be sprung forward, and press against the blind,` Athey force itl closely against the front plates m m and thus make to all intents and purposes a close, or suiiiciently close joint, to prevent the admission of rain, or anyeXtraneous matter, into the grooves c, c, or chambers in rear of them.`

` jurious friction in its guide grooves.

In winter it sometimes occurs, that water will be blown orotherwise get between the blind and the front plate x, and' there be frozen, so as to render it difcultto operate the blind.` Besides under such circum-V stances, as well as where the blind bears hard in its grooves,vfrom other causes, the hinges are liable 'tobe broken, or injured. It there- ,fore becomes a very importantmatter, that the blinds should be moved away from contact, with the front plates m, fr, in order t0 travel freely up and down without obstruction. It will thus be seen that the main object of the bars e, is to press the blind, (when down) y forward and close against the front plates for the -purposes above mentioned. Y Y

The pressure bar e, may be drawn back by a knob z', or other contrivance of like nature applied to it, as seen in Fig. 4, and extending through the back part of the chamber cl and when so drawn back, the locking bar may be kept retracted by a vsliding bolt or fthe same.

plate 7c afliXed to the backvr of the chamber as seen in Fig. 4, and Inadeto slide into and outf'from a, suitable notch Z, made in the shank of theknob z. I do not, however deem this mode of fastening the locking bar back,` as constituting any part of my invenation,y as I intend to adoptany other convenient and proper 'method'of accomplishing The bar may be forced forward, `and retracted by a'screw/or screws. y From the v'above it will'readily be seen, by any person of ordinary skill as a mechanician, `how completely the bars, when thrownforward against theblind (provided they areprovided with pins g g) not only preventit from being raisedeither upward or being drawn out of place by force, applied on the outer side ofit,or that side of it which faces the street, but press it close up against the front plates w m and thus exclude rain, etc.

. My invention lwhen applied tol a blind,

such as above described enables meto construct it, without any o-f the ordinary bending of the ends Vofthe slats, such as is claimed by the aforesaid Johnson, in order to keep them from being drawn out'of place. By having plain slats without bent ends, I am enabled to operate the `blind with muchless friction, and to much ,better advantage, than -l can be effected by `the invention of thesaid Johnson. BesidesInot only keep the blinds or slats `from being drawn out vof place laterally and horizontally when closed down,

but I obtain further' a very important advantage, viz.,rthat of being able to prevent any person fro-m 'raising the blind by any force applied to it in the street.

I therefore claim as my invention-i The pressure bars e, e, in combination with the folding blind and its frame, as `constructed with wide grooves and made to operate in connection therewith substantially as described. H i

In testimony whereof I have hereto set my signature thistwenty iirst `day o-f J anuary A. I). 1847.

EBENR. GATE.l

Vitnesses: z

R. H. EDDY,

S. W. VVALDRON, J r.

Images