New or Improved Window Cleaning Machine or Apparatus.
Year: 1891

page_text: Date of Application, 1st Apr., 1891
Complete Specification Left, 6th Jan., 1892-Accepted, 1st Apr., 1892
PROVISIONAL SPECIFICATION.
New or Improved Window Cleaning Machine or Apparatus.
SAMUEL BLACK Ship Chandler, Harbor Street Ardrossan County of Ayr
WILLIAM MACGOWAN Marine Surveyor, Hill Place Ardrossan, County of Ayr.
We do hereby declare the nature of this invention to be as follows:-
A machine or apparatus specially designed and adapted for cleaning the exterior
of house, tenement, or other windows of analagous construction (such as windows
which slide up and down in grooves in lintels or sides of window sash frame), by
manual or other power applied from the interior of appartment in which window
to be operated upon is situated and thereby obviating the dangers and inconveniences
of the common method.
For convenience of definition and illustrative description various component parts
of the machine or apparatus will be specifically designated by a name.
These
parts are 1st. The fulcrum bar. 2nd. The travelling lever. 3rd. The cleaning rod.
4th. The tumbler. 5th. The cleaning wad. 6th. The pump. There are other
minor parts, which can be designated, by name in course of description.
The fulcrum bar may be straight or of any curve, preferably straight and
inflexible (so far as the material of which it is composed may allow). Its section
may be of any shape, but preferably circular, and thus the fulcrum bar is preferably
cylindrical. It may be composed of jointed parts, making up the whole straight or
curved fulcrum bar, or it may be in one piece or length, and have any suitable
device for slightly altering its length. Its length may approximate to the average
width of windows. It may be of any suitable wood or metal, either hollow or
solid. Its position is paralell to the sill of window, and as near to the level of sill
It is fixed
of window to be operated upon as convenient for working the machine.
firmly in position, its ends in contact with lintel or sash frame, or it may be fixed
in position by any other suitable method, such as the lower half of window pressing
down on suitable clutches or other attachments or design of fulcrum bar ends.
To clearly define the preferable position the lower sliding portion of window to
be operated upon is slightly raised a few inches, preferably one to two inches, and
the fulcrum bar placed close under edge of window and fixed, leaving just room for
the travelling lever (to be hereinafter described) to move freely along the fulcrum
bar, one arm of the travelling lever projecting outwards at right angles to
fulcrum bar, and the opposite arm of travelling lever projecting inwards towards
the interior of apartment at an approximately similar angle to "bar."
The function of the fulcrum bar is principally to form a fulcrum at any point of
its length to the travelling lever. But any other adjustable fulcrum may be
adopted, varying from the fulcrum bar already described, and may be fixed in
position by similar device as "bar.”
The travelling lever " is attached to the fulcrum bar by an eye (or short tube)
of approximately equal diameter to fulcrum bar, in which fulcrum bar is inserted.
The eye being formed in the travelling lever" at the inner and adjacent ends of
arms of travelling lever," and divide the travelling lever into two arms-the
inner arm and outer arm. The outer arm projecting outwards across the sill of
window to be operated upon when in position, and the inner arm projecting inwards
to the interior of apartment.
The fulcrum bar being the fulcrum or axis of the travelling lever, the arms of
travelling lever are preferably at an approximate right angle to fulcrum bar. But
may be inclined to each other at any suitable angle, or may be in the same straight
line, the axial line of arms inay pass through the fulcrum bar, or pass above or
under it
.

page_text: The functions of inner & outer arms of travelling lever are principally-First
to form a lever, secondly, to attach other component parts of machine or
apparatus to.
The outer arm of travelling lever may be of any suitable length to suit any
desired motion, when acuated by inner arm of travelling lever. But preferrably of
such length that a circular eye or short tube, formed or attached to its outer end,
may just clear outside stone (or other material) sill of window. The axial line of
eye or short tube attached or formed in outer extremity of outer arm of travelling
lever may be approximately paralell to plane of windows to be operated upon.
But
preferrably inclined slightly inwards, that continued to plane of window it. may form
an acute angle, or the eye or short tube if attached to outer extremity of outer
arm. Its axial line may be varied and adjusted by a thumb or stop screw at its
attachment.
Through this eye or short tube the cleaning rod is inserted, which rod, approxi-
mately of the same length as the depth of ordinary windows, or slightly longer, to
be herinafter described under its proper heading.
The inner arm of travelling lever is of convenent length for attaching other
component parts of machine or to form handle of lever to acuate outer arm of
lever, or other parts of machine in operation, with or without the other
attachments.
The cleaning rod is a rod of sufficient length to reach or extend from outer end
or eye attached or formed on outer arm of travelling lever to any part of window
to be operated upon. It may be of any suitable wood or metal, solid or hollow,
or of any shape in section but preferrably a cylindrical rod of convenient thickness
and size to insert in the eye attached to or formed at outer arm of travelling lever.
It may be adjusted to & fixed at any point by a thumb or stop screw in eye of
outer arm of travelling lever.
It may be raised or lowerd by hand so that its upper end may be in contact
with any part of window, or it may be raised and lowered by a cord or small chain
passing over a small pully wheel, attached adjacent to eye on outer arm of travelling
lever. The one end of cord or chain attached to lower end of cleaning rod. The
other end passing to interior of apartment in which machine or apparatus is being
operated and fastend by any suitable device, cleaning rod, at the upper end of
same. The tumbler is attached or may be attached, or if tumbler is dispensed
with the cleaning wads may be attached to head or top end of cleaning rod in
position.
The tumbler is a short rod of wood or other suitable material, trunnioned or
attached to head of cleaning rod, by an axial pin passing through slot in head of
cleaning rod, and through tumbler dividing it equally or unequally. It is confined
in its motion by the form of slot in head of cleaning rod, so that when moved on
its axis (ciz. the axial pin attaching it to head of cleaning rod), its ends describe
segments of circles, whose planes are approximately at right angles to plane of
window being operated upon by the machine or apparatus. To the outer arm of
tumbler is attached or may be attached a small suitable spiral spring, whose other
end is fastened at a suitable distance down the outside of cleaning rod. When
spring is in repose it holds the end of tumbler to which it is attached slightly
below level of the opposite end of tumbler.
At a suitable point of inner end of tumbler a cord or small chain is attached
which passes down parallell with cleaning rod round a small pully wheel attached
to travelling lever and inwards to the apartment where machine is being operated
or it may pass through an eye attached or formed on travelling lever. In lieu of
pully wheel in a similar manner. By a forked arm on head of cleaning rod a
small pump may be adjusted or attached to head of cleaning rod in such manner
that the operation of working the tumbler by alternate tension of cord or chain
and the before described spring simultaneously works pump.
To the inner end of tumbler the cleaning wads may be fixed by any suitable
device, and wet or dry cleaning wads may be interchanged with facility.

page_text: Preferably in lieu of pump at head of cleaning rod, a pump may be attached to
inner arm of travelling lever: and a small cylindrical pump may be attached there,
whose piston or axial line may be in the same line as inner arm.. The handle of
this pump may be a cross head on the piston, to which may be attached at proper
tension the cord or small chain whose other end is attached to tumbler, so that the
simultaneous working of pump and movement of tumbler may be attained.
The pump on inner arm of travelling lever may form part of the lever when
attached, and when pump is not worked for water, it may be grasped as a handle
and acuate outer arm of travelling lever.
By the foregoing combination the whole machine may have three distinct
motions when operated, which motions may be used separately or in combination
to clean windows.
First. The travelling lever being acuated and the cleaning rod being fixed at
suitable point and inclination to plane of window operated upon, its upper end
(with or without tumbler), and with cleaning wads attached pressed against
windows to be cleaned.
Second. The motion of tumbler acuated by small cord or chain before described
in combination with spiral spring before described.
Third. Another independent motion may be given to cleaning wad & cleaning
rod by alternately pulling & relaxing the cord or small chain, which raises or
lowers the cleaning rod, if the cleaning rod passes freely through the eye on outer
arm of travelling lever.
The tubeing may be of india rubber or other suitable materiel, and convey water
from a cistern or pail through the pump or pumps wherever situated in machine,
thence conveyed through spray pipe adjacent to cleaning wads.
If pump is situated on inner arm of travelling lever tubing may convey water
upwards through a suitable hollow trunion in hollow tumbler, and thus the water
pecolate or be forced directly through cleaning wad at end of "tumbler."
The machine or apparatus may have the whole three motions already described
or any single one of them in combination with other or without. But preferrably,
the three combined, worked with ordinary intelligence, an approximately paralell
motion of the cleaning wad to the plaue of window operated upon and in contact
with it can be attained.
The machine or apparatus may be light portable & casy to stow away, and fully
answer the purpose of a popular domestic window cleaner.
By a slight modification of minor parts of combination above described, in lieu
of tumbler or direct acting cleaning wads, the cleaning wads may be a
cylindrical or circular brush, revolving or rotating by same or analagous methods,
heretofore described.
"
The tumbler may be hollow, with a spring inserted. To the inner projecting
end of which, in a suitable manner, the cleaning wads may be attached, so that the
cleaning wads may yeild and pass easily over any slight projections on the surface
of windows. And by this means a motion of cleaning, wads, in contact. with
window panes, may approximate to a paralell motion to plane of windows.
Dated this day 30th March 1891.
SAMUEL BLACK.
WM. MACGOWAN.

page_text: COMPLETE SPECIFICATION.
New or Improved Window Cleaning Machine or Apparatus.
SAMUEL BLACK, Ship Chandler Harbor Street Ardrossan Co. of Ayr &
WILLIAM MACGOWAN. Marine Surveyor 9 Montgomery Street, Ardrossan Co.
of Ayr, do hereby declare the nature of this invention and in what manner the
same is to be performed, to be particularly, described and ascertained in and by the
following statement:-
A: machine or apparatus specially designed and adapted for cleaning the exterior
of house tenement or other windows, of analagous construction, (such as windows
which slide up and down in grooves in lintels, or sides of window sash frame), by
manual or other power applied to it from the interior of appartment in which the
window to be operated upon is situated, and thereby obviating the dangers and
inconveniences of the common method of manual application from exterior.
And in order that our said invention and the manner of performing or carrying
the same into effect or practice may be properly understood, we have hereunto
appended one explanatory sheet of drawing in which the same reference letters are
used to indicate corresponding parts in all figures where shewn.
For convenience of definition various substantive component parts of our new or
improved window cleaning machine or apparatus, will be designated by a specific
name, which will approximately indicate their functions. Also the term "apparatus"
will indicate the whole coinbination or machine.
Figure, 1 is a side or edge view of part of a house H with window W and part of
sash frame W. The outer ledge H. The end profile view of lateral or horizontal
part of window sash frame L. The inner ledge L. It also shews profile view of
apparatus in application to a window W. The parts seen being one of the fulcrum
bar frames F. The inner arm A with pump P attached the cord C, water tube p³,
the bucket B. The outer arm A, adjustable eye A², the rod R. R'. The tumbler T,
the component parts of which are, outer part T3, the tubes t. t, the oscilating wad
frame K, the back spring cord R, and, water tubeing p³.
Figure 2. is a view of the fulcrum bar F, with its frames F & F', also
traveller T, T,, the inner arm A, part of outer arm A¹, and other minor parts to
be, herein after described.
Figure 3. shews view of fulcrum bar frames F1 F2, with attachments.
Figure 4. is a view of adjusting travelling lever, shewing its substantive com-
ponent parts in position with respect to each other, viz. the arms A & A',
traveller T, pump P, adjustable eye A³, part of rod R, the pulley block a³, cord C,
the tubeing, and other minor adjuncts, to be herinafter more particularly
described.
Figure 5 shews section view of outer arm A, of the adjusting travelling lever.
Figure 6 is a view of the extremity of the outer arm A' of the adjusting travelling
lever.
Figures 7. S. & 9. are views of cognate parts of apparatus, to be herein after more
particularly described.
1
Figure 10. is a sectional view of a cognate fulcrum bar F₁ with its subordinate
integers to be herinafter more particularly described.
Referring to these drawings, the nature and novelty of our invention consists all
as follows.
First in forming a fulcrum bar F, Figure 2. (or it may be a cognate fulcrum
bar F, shewn in Figure 10,) preferrably straight and inflexible also approximately
cylindrical, or it may be a bar polygonal in section. The extremities of fulcrum
bar F, fixed, firmly, in the frames FF or secured to the frames FF2 in bushes f¹ƒ
so that the bar F may turn in these bushes ff. The fulcrum bar F is preferrably,
hollow, for lightness if made of any suitable metal. The frames F1 F2 have thumb-
screws F, to firmly attach them to the inner ledge L', so that the lower half of the
window W, may be raised sufficiently to allow the person operating the machine, to

page_text: reach outward and adjust the rod R; in the adjustable eye A³, in the desired
position. Upon the fulcrum bar F. is the traveller T₁, with an axial'eye concentric,
on the bar F, fitted with comparative accuracy, merely allowing a free lateral
motion along the bar F, also a limited revolving motion round the bar F as an axis.
The traveller T, is formed preferrably with double lugs T₁, approximately on
opposite sides of it, these lugs having suitable eyes for pins to form suitable hinge
for folding the arms A, A, parallel to the fulcrum bar F when apparatus is not.
in operation.
The extremities of the inner arm A & outer arm A¹ adjacent to, are slightly
flattened, and impinge against small curved springs, t. t, fixed at the bottom of the
recesses formed by the double lugs T₁' T₁' of the traveller T₁, so that the arms A A',.
are spring locked, either when in use at right angles to fulcrum bar F, or when
paralell to it, or other equivalent device for spring locking analagous to that of an
ordinary jack knife.
In some cases the fulcrum bar F, will have a small feather on it, its full
length, between the frames FF with a corresponding groove in the traveller T₁,
so that the motion of the traveller T, in respect to the fulcrum bar F, is confined
to a lateral motion along the fulcrum bar F, in this case the fulcrum bar Fat
extremities, would be fixed in suitable bushes at ff in the frames F & F2
respectively, and thus the traveller T₁, could attain its requisite limited revolving
motion, also. That extremity of the fulcrum bar F, preferrably inserted in bush f
in frame F, would project slightly beyond the frame F2 and have fixed on it a
small toothed segment of a wheel, the teeth slopeing suitably for a small locking
pall, attached to frame F. The object of this minor combination & cognate
variation of a feathered fulcrum bar F, & grooved traveller T, will be more readily
demonstrated after the remaining figures of drawing are described. The length of
fulcrum bar F is preferrably about 2 feet, which with its attachments the frames F F
would form a light easy portable fulcrum bar, that could be used irrespective of the
varying width of windows in general.
Figure 3 is a view of the fulcrum bar frames F' F, with the upper recesses W
in cach, to fit lower edges of windows in general. The lower recesses L' also to fit.
inner ledges of windows, with the thumbscrews 3 in each, for firm attachment to.
inner ledge L. These frames F F are preferrably approximately symetrical in
form to each other, merely varying in attachment, and of malleable cast iron or
steel, with bulbed edges in recesses to combine strength with lightness.
Figure 4. is a view of the adjusting travelling lever, made up of the component.
parts, inner arm A, with pump P, or its cognate substitute of a similarly formed
handle, (if pump is dispensed with), outer arm A, with its mountings, connected to.
traveller T, and similarly the inner arm A, by pins as a passing through eyes
formed in lugs TT, forming preferrably a spring locked hinge, as already
described. The outer arm A' is preferrably curved as shewn, so that its outer
extremity adjacent to A, might readily rest on the outer ledge H', of the house H,
so that the adjustment of eye A' can be readily made by person operating the.
machine or apparatus.
A small pully block a³, is attached to outer arm A', by an eye formed on A'..
Through this block a³, the acuating cord C. passes, its upper end being attached
to the cleaning apparatus mounted at the head of the rod R, as shewn in Figure 1.
The cord C. may pass inwards either under or over fulcrum bar F, and be attached
at any suitable part of its length to a small cleat p₁ formed on the handle of
the pump P, so that the action of working the pump will simultaneously work the
cord C, and so acuate the cleaning mechanism mounted at the head of the rod R, a
short water tube p³, is attached to an inlet nozzle formed suitably on the pump P..
The pump P is preferrably a small suitable pump, attached to inner arm A which
is formed concave in its upper surface, and forming a bed for pump. In some
cases, in lieu of pump, P, a small handle is substituted preferrably of wood, and may
be bored axially or nearly so, that the acuating cord C. may pass through it and
be attached to the handle p². But the pump P was designed also to form a

page_text: handle, and if the pump was not generally used as a pump or became obsolete from:
choice or conditions, its interior piston being withdrawn, the cord C might be
passed axially through it and attached to 2. The nozzle outlet end of the
pump P, is preferrably formed at the line of upper surface of pump P, for the better
symetrical arrangements of the adjacent parts in relation to each other.
pump P may be attached by a small band, or suitable equivalent, to the inner
.arm A.
The
At the outer extremity of the arm A is attached the adjustable eye A through
which the rod R, passes by a lug a¹ formed on eye A², through a bored eye of
which the pin a², passes, and through the slotted extremity of outer arm A', as
more particularly shewn in Figure 6.
Figure 5, shewing a section of outer arm A¹ preferrably of this form for ridgidity,
combined with lightness. The outer arm A¹ is preferably of malleable cast iron
or steel materiel.
Figure 6. is a view of the extremity of arm A' shewing the slotted end and
adjustable eye A, the adjusting thumbscrew a' has a small loose ferrule concentric
on the threaded screw, and adjacent to thumb piece, so that on being screwed up,
the slightly flanged edge of ferrule impinging against the slotted lug adjacent.
There being some degree of flexibility in both lugs of slotted end of outer arm A,
the further tendency of screwing the thumbscrew a', is to close these lugs and jam
the lug formed on a² between them. A small thumbscrew a is for fixing the
rod R, at any desired point of its length, or other equivalent methods of adjusting
& fixing the eye A' may be adopted.
Figures 7. 8. & 9. represent cognate substitutes for each other. Referring first
to Figure 8. it being similar to that part of the apparatus shewn at the head of the
cleaning rod R, in Figure 1, but upon a larger scale than Figure 1. The whole
tumbler T as bracketed would be formed of component parts, preferrably the outer
arm T of light suitable wood, inserted for a short length at one extremity of a
tube t.
The tube t is preferrably a small cylindrical tube trunnioned at the head
of the rod R, by a band T, embracing it, with lugs at lower part between which a
small metal eye r, attached to rod R projects and a pin passes through lugs and
eye. Upon the tube t. another & somewhat shorter tube t¹ is fitted loosely &
concentric to t, at that end of the tube t¹ nearest the wad frame K is fixed a small
cap or the tube t', has a flat closed end with two lugs, projecting with symetrical
eyes between which a projecting lug K2 K2, on the wad frame K³, and having a
suitable eye, is secured by a pin which permits of the oscillation of the wad frame K
with its attachments. The short tubes t, t' contain a spring S. This is a spiral
spring of suitable elasticity one extremity is preferrably fastened to that end of the
outer arm T3, of the tumbler T, which has been inserted in the tube t. The other
end of the spiral spring S, is fastened to the interior side of the cap or closed
end of tube . The tube t¹, is slotted for a short distance in its upper & lower
sides, through these slots the small eyes t2 & 3 respectively project, these small
eyes t&t are formed on or attached to the tube t, they answer the purpose of a
guide for the motion of the concentric tube t¹, as well as their other function ri:. to
attach the cord C. & to attach the water tube p³ when used. The effect of the
acuating cord C, assuming the position of the tumbler T as in Figure 1, forming
an acute angle (below) with the plane of the window W, is, on being pulled down-
ward. The theoretical circular motion of the extremity of the tube 2, and its
attachments, is turned into a position paralell to plane of window W, by, its,
resistance and the compression of the spiral spring S. The surface of the cleaning
wad K is kept in plane contact with the window, by its oscilation on the pivot K,
and the pressure of the spring S. At the outer extremity of the arm T³, is
attached preferrably an elastic cylindrical cord or piece of indiarubber, or it may be
a spring R, its other extremity attached to an eye upon the band R2, of the rod R.
The retroactive power of this elastic cord or spring R*, upon the relaxation of the
cord C. after having been pulled downwards, returns the cleaning wad K to its
original position, having performed the requisite upward stroke in contact with the

page_text: window, & so the rythmical acuation of the cord C, effects the rubbing motion of
the cleaning wad K, upon the window, analagous to direct manual application.
Referring particularly to Figure 7-a cognate device is shown which is so far
similar in the application of the same principles to Figure 8, that the alternate
tension of the cord C. and the retroactive power of a spring or elastic substance R*,
and a similar compression of a spring S, effects the same rubbing motion of the
cleaning wad K, upon the window W.
R³ Figure 7. is a small preferrably, metal, projection attached to the head of the
rod R, having a horn or projection above it with a small eye for attachment of R*.
It is preferrably slotted, or has two lugs, extending from the base of the horn, to
extremities, at the extremities a small roller is secured, by a pin passing
through it & extremities of lugs, as shewn dotted. R+ passes between the lugs
of R³. A preferrably wooden, frame K² composed of two narrow pieces of wood,
joined & kept about two inches apart at one edge, eis., that adjacent to the
frame K, by a narrow strip of suitable metal or wood of same length as K. The
roller, impinges against this joining strip, and a retaining piece K³, shewn by
dotted line, makes a loose attachment of K to R³. Flattened eyes K' are formed
at the back of K² to receive corresponding flattened hooks attached to back of
frame K for facility of attachment of frame K with its attachment to K². A small
retaining button at top part of K² keeps the flattened hooks in position whilst
machine is in operation.
The wad frame K is preferrably of wood grooved at its edges having an elastic
cord K for readily securing any suitable cleaning cloths to frame K. by tucking
them under cord K or other equivalent device, t¹ & t are tubes containing springs
similar to that described in Figure 8, but having pivotal attachments at both ends,
viz. at t & to respectively. That at t to suitable lugs attached to the rod R. The
elastic cord or spring R is attached to an eye at lower part of K², another eye ΚΟ
is for attachment of cord C. The horn formed on R³ and projecting upwards is to
give greater length to R4, & thus greater scope of elastic action. R* shews where
the rod is preferrably jointed. The dotted configuration, and line S above &
below tubes tt' shew the approximate alternate positions of the cubes t & t' during
operation of apparatus.
Figure 9. is similar generally to Figure 7. with the variations, that the wad
frame K is attached permanantly to K2, also K2 projects slightly above top of K,
this for giving greater travel to motion of K2 during operation.
K8 in Figures 7 & 9. is a flat rim of india rubber attached to K. under which
cleaning clothes may be partially inserted for ready attachment.
The dots shewn in Ki in Figures 7. 8 & 9. represent a diaphragm of india
rubber cloth perforated or it may be simply coarse cloth through which water may
percolate, and the attachment of water tube p³ as shewn in Figure 8, to frame K
and through it, may be made to those shewn in Figures 7 & 9.
Figure 10. is a cognate form of fulcrum bar F₁, to the bar F shewn in Figure 2.
It should approximate in length to the average width of windows in general. Its
extremities are formed with right and left handed screw threads respectively F,',
and inserted into hollow screw threaded frames F₁2 F. This fulcrum bar F, is
divided at F3 and has a square axial projection, which fits into a corresponding
recess in its other part. T₁ is a portion of a traveller, cognate to the
traveller T, shewn in Figure 2. The method of fixing this form of fulcrum bar in
position is, first join the parts of fulcrum bar F, at middle, then insert the
frames F12 F1 in the grooves in window sash frame W³, as low down as suitable for
operation of adjusting travelling lever, as before described with reference to
Figures 2 and 4, then turn F₁, in the proper direction to elongate the combination,
& thus fix it firmly in position. The section of bar F₁ into two lengths is for
convenience of handling, and the minor convenience of being able to take off
traveller T readily, but this fulcrum bar, F, may be in one entire length. The
scales shewn in drawings are for convenience of illustration only of approximate
suitable sizes of the various parts.

page_text: The rod R shewn in Figure 1 and partially in other figures may be in one
Jength, or in some cases may be jointed. The fulcrum bar For F₁ Figures 1
& 10 respectively may in some cases be of wood. The adjusting travelling lever
may be made up of component parts, as shewn, or it may be formed in one picce
having a bored eye, for fixing on to fulcrum bar For E₁, but we prefer it in the
form & combination shewn & described, viz. made up of separate parts. We do
not bind ourselves to any shape or size of the various component parts of the major
and minor combinations, but have shewn the preferrable forms. The object of our
invention being an apparatus suitable generally for window cleaning, and there
being variations in dimensions of windows, and also of conditions & positions of
windows, cognate devices were an implied necessity, as firstly jointed rods R, for
windows with obstructions to descent of rod R, or convenience of stowage, when not
in use.
In larger windows than common, the minor combination shewn in Figure 8
as giving a slightly longer travel, to the cleaning wad K¹. For small or average
windows we prefer the minor combinations shewn in Figures 7. & 9, also the
cognate device of fulcrum bar F₁, for windows in which the inner ledge L³, was
unsuitable for attachment of frames F¹ & F (see Figure 2). The use of pump P,
& tubeing, may be omitted (though we prefer it), and the substitution of a plain
handle made in some cases, through which the acuating cord C, might preferrably
pass.
The method preferrably of operating the whole apparatus, is, having attached
fulcrum bar F or F₁, in position, the window being raised sufficiently for person
operating, to reach outward and adjust the rod R in the desired position, the
window W then being closed down, so that its lower edge fits firmly in the recesses
in frames F¹ & F2, which has already been firmly attached, by means of thumb-
screws f, to the inuer ledge L' of the window W, or in lieu of frames F1 F³, its
cognate substitute, the cord C being attached to its cleat pt. The inner arm A,
with its attachment of pump P, (or its cognate substitute of a small piece of
cylindrical wood bored axially for cord C), is grasped by the left hand of party
operating The right hand operates the cord C, by means of handle 7, to which
it is attached, and simultaneously the pump P, if this is used. If pump P is used
the supply of water from bucket B, may be regulated by lifting tube p³ out of
bucket, when water is not required.
The main & substantive parts of our invention consists of the major combination
made up of the minor combinations, also as parts of our invention, the major
combination as shown in Figure 1, consisting of a fulcrum bar F, or its cognate F,
Figures 2 & 10 respectively, upon which an adjusting travelling lever made up of
component parts, or in one piece, as already described, of a rod R, contained in an
adjustable eye A, at the extremity of the outer arm A, of the adjusting travelling
lever, adjustable in any required position in the eye A², also a mechanism attached
preferrably, as in manner shewn, to the upper extremity of the rod R, the cognate
mechanisms shewn in Figures 7. 8. & 9. suitable for adoption separately, as the said
cleaning mechanism, also the minor cognate combinations shewn in Figures 7. 8
& 9, as already described, wherein the same principle of elasticity, either of springs,
or elastic substances. Their alternate tension and retroaction, arranged analagously,
with respect to each other as shewn & described substantively, aids in performing
the ultimate object of our invention, viz. the cleaning the exterior of that class of
windows, for which the apparatus is suitable.
Having now particularly described and ascertained the nature of our inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is,
First. The construction or general arrangement and combination, substantially
of the parts of a window cleaning apparatus or machine, substantially as herein
described in reference to, and shewn in the accompanying drawing.
Second. In window cleaning machines or apparatus, the mounting of cleaning
mechanism substantively such as shewn in Figure 7, or Figure 8, or Figure 9, at

page_text: the upper extremity of a rod R, retained in an eye A' adjustable, and attached to
outer extremity, of an adjustable travelling lever, which lever has its fulcrum as F
or its cognates such as F₁, along which it may move laterally, or other cognate
fulcrum or rest, all substantially as and for the purposes and advantages herein
described in reference to, and shewn in the accompanying drawings.
Third. In window cleaning machines or apparatus, having a fulcrum bar F,
mounted in frames F & F2, either cylindrical in section, or with feather, and
adjusting toothed quadrantal segment 1, Figure 2, or other cognate fulcrum bar,
such as F1, Figure 10, along which an adjusting travelling lever may travel, all
substantially as and for the purposes and advantages herein described in reference
to, and shewn in the accompanying drawings.
Fourth. In window cleaning machines or apparatus, the construction of the minor
combination, mounted at the upper extremity of a rod R, such as shewn in Figure 8,
having an oscillating tumbler T, that has attached to one extremity an oscillating
cleaning wad frame K, and having a spring S enclosed in tubes t, t, also an elastic
spring or substance attached to its opposite extremity, all for the purposes and
advantages herein described in reference to and shewn in the accompanying
drawing.
Fifth. In window cleaning machines or apparatus the construction of the cognate
minor combinations Figures 7. & 9. having a frame K² to which may be attached
a frame K by hooks, eyes K'. The frame K attachable to a horn R³, & having
attached to it an elastic spring or cord R₁ also tubes t, t' containing a spring $ all
for the purposes and advantages herein described in reference to and shewn in the
accompanying drawings.
Sixth. In window cleaning machines or apparatus having an adjusting travelling
lever in one part without solution of continuity or made up of component parts as
the substantives A. A' A' T & P shewn in Figure 4 that may be folded approxi-
mately parallel to a fulcrum bar For F1, having at the outer extremity of the
arm A an adjustable eye A² all substantially as and for the purposes herein
described and shewn in the accompanying drawing.
Seventh. In window cleaning machines or apparatus having a detachable cleaning
wad frame K with a groove round edges for an clastic cord or ring K and elastic
attachment K round edges for readily & with facility stuffing under these, cleaning
wads or dusters, all substantially as and for the purposes & advantages herein
described and shewn in the accompanying drawing.
Eighth. In window cleaning machines or apparatus that by the alternate tension,
& retroactive power of any elastic cord or spring R* applied in any cognate manner
to that shewn in drawing by any cord C attached to a frame K an alternate motion
of a cleaning wad K¹ is attained in contact with a window pane, all substantially
as & for the purposes and advantages herein described & shewn in the accom-
panying drawings.
Dated this 5th dox of December 1901